# HG changeset patch # User Martin Troxler # Date 1290873774 -3600 # Node ID be807e224b0e2c8c18bba417c10e9c7b167a3ce5 # Parent a7ff6c28a43250e8e5badd5479365f0b42421252# Parent e9f722488fcd777e451e88ea2442e8fa8d18dfe6 Merged diff -r e9f722488fcd -r be807e224b0e .hgignore --- a/.hgignore Mon Oct 25 17:06:45 2010 +0200 +++ b/.hgignore Sat Nov 27 17:02:54 2010 +0100 @@ -136,3 +136,5 @@ tool/Makefile.in tool/TAGS tool/ethercat +debuild.log + diff -r e9f722488fcd -r be807e224b0e devices/8139too-2.6.33-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/8139too-2.6.33-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,2781 @@ +/****************************************************************************** + * + * $Id$ + * + * Copyright (C) 2006-2009 Florian Pose, Ingenieurgemeinschaft IgH + * + * This file is part of the IgH EtherCAT Master. + * + * The IgH EtherCAT Master is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2, as + * published by the Free Software Foundation. + * + * The IgH EtherCAT Master is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General + * Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with the IgH EtherCAT Master; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * --- + * + * The license mentioned above concerns the source code only. Using the + * EtherCAT technology and brand is only permitted in compliance with the + * industrial property and similar rights of Beckhoff Automation GmbH. + * + *****************************************************************************/ + +/** + \file + EtherCAT driver for RTL8139-compatible NICs. +*/ + +/*****************************************************************************/ + +/* + Former documentation: + + 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux. + + Maintained by Jeff Garzik + Copyright 2000-2002 Jeff Garzik + + Much code comes from Donald Becker's rtl8139.c driver, + versions 1.13 and older. This driver was originally based + on rtl8139.c version 1.07. Header of rtl8139.c version 1.13: + + ---------- + + Written 1997-2001 by Donald Becker. + This software may be used and distributed according to the + terms of the GNU General Public License (GPL), incorporated + herein by reference. Drivers based on or derived from this + code fall under the GPL and must retain the authorship, + copyright and license notice. This file is not a complete + program and may only be used when the entire operating + system is licensed under the GPL. + + This driver is for boards based on the RTL8129 and RTL8139 + PCI ethernet chips. + + The author may be reached as becker@scyld.com, or C/O Scyld + Computing Corporation 410 Severn Ave., Suite 210 Annapolis + MD 21403 + + Support and updates available at + http://www.scyld.com/network/rtl8139.html + + Twister-tuning table provided by Kinston + . + + ---------- + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + Contributors: + + Donald Becker - he wrote the original driver, kudos to him! + (but please don't e-mail him for support, this isn't his driver) + + Tigran Aivazian - bug fixes, skbuff free cleanup + + Martin Mares - suggestions for PCI cleanup + + David S. Miller - PCI DMA and softnet updates + + Ernst Gill - fixes ported from BSD driver + + Daniel Kobras - identified specific locations of + posted MMIO write bugginess + + Gerard Sharp - bug fix, testing and feedback + + David Ford - Rx ring wrap fix + + Dan DeMaggio - swapped RTL8139 cards with me, and allowed me + to find and fix a crucial bug on older chipsets. + + Donald Becker/Chris Butterworth/Marcus Westergren - + Noticed various Rx packet size-related buglets. + + Santiago Garcia Mantinan - testing and feedback + + Jens David - 2.2.x kernel backports + + Martin Dennett - incredibly helpful insight on undocumented + features of the 8139 chips + + Jean-Jacques Michel - bug fix + + Tobias Ringström - Rx interrupt status checking suggestion + + Andrew Morton - Clear blocked signals, avoid + buffer overrun setting current->comm. + + Kalle Olavi Niemitalo - Wake-on-LAN ioctls + + Robert Kuebel - Save kernel thread from dying on any signal. + + Submitting bug reports: + + "rtl8139-diag -mmmaaavvveefN" output + enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log + +*/ + +#define DRV_NAME "ec_8139too" +#define DRV_VERSION "0.9.28" + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../globals.h" +#include "ecdev.h" + +#define RTL8139_DRIVER_NAME DRV_NAME \ + " EtherCAT-capable Fast Ethernet driver " \ + DRV_VERSION ", master " EC_MASTER_VERSION + +#define PFX DRV_NAME ": " + +/* Default Message level */ +#define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ + NETIF_MSG_PROBE | \ + NETIF_MSG_LINK) + + +/* define to 1, 2 or 3 to enable copious debugging info */ +#define RTL8139_DEBUG 0 + +/* define to 1 to disable lightweight runtime debugging checks */ +#undef RTL8139_NDEBUG + + +#ifdef RTL8139_NDEBUG +# define assert(expr) do {} while (0) +#else +# define assert(expr) \ + if(unlikely(!(expr))) { \ + pr_err("Assertion failed! %s,%s,%s,line=%d\n", \ + #expr, __FILE__, __func__, __LINE__); \ + } +#endif + + +/* A few user-configurable values. */ +/* media options */ +#define MAX_UNITS 8 +static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; +static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; + +/* Whether to use MMIO or PIO. Default to MMIO. */ +#ifdef CONFIG_8139TOO_PIO +static int use_io = 1; +#else +static int use_io = 0; +#endif + +/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). + The RTL chips use a 64 element hash table based on the Ethernet CRC. */ +static int multicast_filter_limit = 32; + +/* bitmapped message enable number */ +static int debug = -1; + +/* + * Receive ring size + * Warning: 64K ring has hardware issues and may lock up. + */ +#if defined(CONFIG_SH_DREAMCAST) +#define RX_BUF_IDX 0 /* 8K ring */ +#else +#define RX_BUF_IDX 2 /* 32K ring */ +#endif +#define RX_BUF_LEN (8192 << RX_BUF_IDX) +#define RX_BUF_PAD 16 +#define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ + +#if RX_BUF_LEN == 65536 +#define RX_BUF_TOT_LEN RX_BUF_LEN +#else +#define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) +#endif + +/* Number of Tx descriptor registers. */ +#define NUM_TX_DESC 4 + +/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ +#define MAX_ETH_FRAME_SIZE 1536 + +/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ +#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE +#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) + +/* PCI Tuning Parameters + Threshold is bytes transferred to chip before transmission starts. */ +#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ + +/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ +#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ +#define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ +#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ +#define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ + +/* Operational parameters that usually are not changed. */ +/* Time in jiffies before concluding the transmitter is hung. */ +#define TX_TIMEOUT (6*HZ) + + +enum { + HAS_MII_XCVR = 0x010000, + HAS_CHIP_XCVR = 0x020000, + HAS_LNK_CHNG = 0x040000, +}; + +#define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ +#define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ +#define RTL_MIN_IO_SIZE 0x80 +#define RTL8139B_IO_SIZE 256 + +#define RTL8129_CAPS HAS_MII_XCVR +#define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG) + +typedef enum { + RTL8139 = 0, + RTL8129, +} board_t; + + +/* indexed by board_t, above */ +static const struct { + const char *name; + u32 hw_flags; +} board_info[] __devinitdata = { + { "RealTek RTL8139", RTL8139_CAPS }, + { "RealTek RTL8129", RTL8129_CAPS }, +}; + + +static struct pci_device_id rtl8139_pci_tbl[] = { + {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + +#ifdef CONFIG_SH_SECUREEDGE5410 + /* Bogus 8139 silicon reports 8129 without external PROM :-( */ + {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, +#endif +#ifdef CONFIG_8139TOO_8129 + {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, +#endif + + /* some crazy cards report invalid vendor ids like + * 0x0001 here. The other ids are valid and constant, + * so we simply don't match on the main vendor id. + */ + {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, + {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, + {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, + + {0,} +}; + +/* prevent driver from being loaded automatically */ +//MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); + +static struct { + const char str[ETH_GSTRING_LEN]; +} ethtool_stats_keys[] = { + { "early_rx" }, + { "tx_buf_mapped" }, + { "tx_timeouts" }, + { "rx_lost_in_ring" }, +}; + +/* The rest of these values should never change. */ + +/* Symbolic offsets to registers. */ +enum RTL8139_registers { + MAC0 = 0, /* Ethernet hardware address. */ + MAR0 = 8, /* Multicast filter. */ + TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ + TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ + RxBuf = 0x30, + ChipCmd = 0x37, + RxBufPtr = 0x38, + RxBufAddr = 0x3A, + IntrMask = 0x3C, + IntrStatus = 0x3E, + TxConfig = 0x40, + RxConfig = 0x44, + Timer = 0x48, /* A general-purpose counter. */ + RxMissed = 0x4C, /* 24 bits valid, write clears. */ + Cfg9346 = 0x50, + Config0 = 0x51, + Config1 = 0x52, + TimerInt = 0x54, + MediaStatus = 0x58, + Config3 = 0x59, + Config4 = 0x5A, /* absent on RTL-8139A */ + HltClk = 0x5B, + MultiIntr = 0x5C, + TxSummary = 0x60, + BasicModeCtrl = 0x62, + BasicModeStatus = 0x64, + NWayAdvert = 0x66, + NWayLPAR = 0x68, + NWayExpansion = 0x6A, + /* Undocumented registers, but required for proper operation. */ + FIFOTMS = 0x70, /* FIFO Control and test. */ + CSCR = 0x74, /* Chip Status and Configuration Register. */ + PARA78 = 0x78, + FlashReg = 0xD4, /* Communication with Flash ROM, four bytes. */ + PARA7c = 0x7c, /* Magic transceiver parameter register. */ + Config5 = 0xD8, /* absent on RTL-8139A */ +}; + +enum ClearBitMasks { + MultiIntrClear = 0xF000, + ChipCmdClear = 0xE2, + Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), +}; + +enum ChipCmdBits { + CmdReset = 0x10, + CmdRxEnb = 0x08, + CmdTxEnb = 0x04, + RxBufEmpty = 0x01, +}; + +/* Interrupt register bits, using my own meaningful names. */ +enum IntrStatusBits { + PCIErr = 0x8000, + PCSTimeout = 0x4000, + RxFIFOOver = 0x40, + RxUnderrun = 0x20, + RxOverflow = 0x10, + TxErr = 0x08, + TxOK = 0x04, + RxErr = 0x02, + RxOK = 0x01, + + RxAckBits = RxFIFOOver | RxOverflow | RxOK, +}; + +enum TxStatusBits { + TxHostOwns = 0x2000, + TxUnderrun = 0x4000, + TxStatOK = 0x8000, + TxOutOfWindow = 0x20000000, + TxAborted = 0x40000000, + TxCarrierLost = 0x80000000, +}; +enum RxStatusBits { + RxMulticast = 0x8000, + RxPhysical = 0x4000, + RxBroadcast = 0x2000, + RxBadSymbol = 0x0020, + RxRunt = 0x0010, + RxTooLong = 0x0008, + RxCRCErr = 0x0004, + RxBadAlign = 0x0002, + RxStatusOK = 0x0001, +}; + +/* Bits in RxConfig. */ +enum rx_mode_bits { + AcceptErr = 0x20, + AcceptRunt = 0x10, + AcceptBroadcast = 0x08, + AcceptMulticast = 0x04, + AcceptMyPhys = 0x02, + AcceptAllPhys = 0x01, +}; + +/* Bits in TxConfig. */ +enum tx_config_bits { + /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ + TxIFGShift = 24, + TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */ + TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */ + TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */ + TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */ + + TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ + TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */ + TxClearAbt = (1 << 0), /* Clear abort (WO) */ + TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */ + TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */ + + TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ +}; + +/* Bits in Config1 */ +enum Config1Bits { + Cfg1_PM_Enable = 0x01, + Cfg1_VPD_Enable = 0x02, + Cfg1_PIO = 0x04, + Cfg1_MMIO = 0x08, + LWAKE = 0x10, /* not on 8139, 8139A */ + Cfg1_Driver_Load = 0x20, + Cfg1_LED0 = 0x40, + Cfg1_LED1 = 0x80, + SLEEP = (1 << 1), /* only on 8139, 8139A */ + PWRDN = (1 << 0), /* only on 8139, 8139A */ +}; + +/* Bits in Config3 */ +enum Config3Bits { + Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */ + Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */ + Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */ + Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */ + Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */ + Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */ + Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */ + Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */ +}; + +/* Bits in Config4 */ +enum Config4Bits { + LWPTN = (1 << 2), /* not on 8139, 8139A */ +}; + +/* Bits in Config5 */ +enum Config5Bits { + Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */ + Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */ + Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */ + Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */ + Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */ + Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */ + Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */ +}; + +enum RxConfigBits { + /* rx fifo threshold */ + RxCfgFIFOShift = 13, + RxCfgFIFONone = (7 << RxCfgFIFOShift), + + /* Max DMA burst */ + RxCfgDMAShift = 8, + RxCfgDMAUnlimited = (7 << RxCfgDMAShift), + + /* rx ring buffer length */ + RxCfgRcv8K = 0, + RxCfgRcv16K = (1 << 11), + RxCfgRcv32K = (1 << 12), + RxCfgRcv64K = (1 << 11) | (1 << 12), + + /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ + RxNoWrap = (1 << 7), +}; + +/* Twister tuning parameters from RealTek. + Completely undocumented, but required to tune bad links on some boards. */ +enum CSCRBits { + CSCR_LinkOKBit = 0x0400, + CSCR_LinkChangeBit = 0x0800, + CSCR_LinkStatusBits = 0x0f000, + CSCR_LinkDownOffCmd = 0x003c0, + CSCR_LinkDownCmd = 0x0f3c0, +}; + +enum Cfg9346Bits { + Cfg9346_Lock = 0x00, + Cfg9346_Unlock = 0xC0, +}; + +typedef enum { + CH_8139 = 0, + CH_8139_K, + CH_8139A, + CH_8139A_G, + CH_8139B, + CH_8130, + CH_8139C, + CH_8100, + CH_8100B_8139D, + CH_8101, +} chip_t; + +enum chip_flags { + HasHltClk = (1 << 0), + HasLWake = (1 << 1), +}; + +#define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \ + (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22) +#define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1) + +/* directly indexed by chip_t, above */ +static const struct { + const char *name; + u32 version; /* from RTL8139C/RTL8139D docs */ + u32 flags; +} rtl_chip_info[] = { + { "RTL-8139", + HW_REVID(1, 0, 0, 0, 0, 0, 0), + HasHltClk, + }, + + { "RTL-8139 rev K", + HW_REVID(1, 1, 0, 0, 0, 0, 0), + HasHltClk, + }, + + { "RTL-8139A", + HW_REVID(1, 1, 1, 0, 0, 0, 0), + HasHltClk, /* XXX undocumented? */ + }, + + { "RTL-8139A rev G", + HW_REVID(1, 1, 1, 0, 0, 1, 0), + HasHltClk, /* XXX undocumented? */ + }, + + { "RTL-8139B", + HW_REVID(1, 1, 1, 1, 0, 0, 0), + HasLWake, + }, + + { "RTL-8130", + HW_REVID(1, 1, 1, 1, 1, 0, 0), + HasLWake, + }, + + { "RTL-8139C", + HW_REVID(1, 1, 1, 0, 1, 0, 0), + HasLWake, + }, + + { "RTL-8100", + HW_REVID(1, 1, 1, 1, 0, 1, 0), + HasLWake, + }, + + { "RTL-8100B/8139D", + HW_REVID(1, 1, 1, 0, 1, 0, 1), + HasHltClk /* XXX undocumented? */ + | HasLWake, + }, + + { "RTL-8101", + HW_REVID(1, 1, 1, 0, 1, 1, 1), + HasLWake, + }, +}; + +struct rtl_extra_stats { + unsigned long early_rx; + unsigned long tx_buf_mapped; + unsigned long tx_timeouts; + unsigned long rx_lost_in_ring; +}; + +struct rtl8139_private { + void __iomem *mmio_addr; + int drv_flags; + struct pci_dev *pci_dev; + u32 msg_enable; + struct napi_struct napi; + struct net_device *dev; + + unsigned char *rx_ring; + unsigned int cur_rx; /* RX buf index of next pkt */ + dma_addr_t rx_ring_dma; + + unsigned int tx_flag; + unsigned long cur_tx; + unsigned long dirty_tx; + unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ + unsigned char *tx_bufs; /* Tx bounce buffer region. */ + dma_addr_t tx_bufs_dma; + + signed char phys[4]; /* MII device addresses. */ + + /* Twister tune state. */ + char twistie, twist_row, twist_col; + + unsigned int watchdog_fired : 1; + unsigned int default_port : 4; /* Last dev->if_port value. */ + unsigned int have_thread : 1; + + spinlock_t lock; + spinlock_t rx_lock; + + chip_t chipset; + u32 rx_config; + struct rtl_extra_stats xstats; + + struct delayed_work thread; + + struct mii_if_info mii; + unsigned int regs_len; + unsigned long fifo_copy_timeout; + + ec_device_t *ecdev; +}; + +MODULE_AUTHOR("Florian Pose "); +MODULE_DESCRIPTION("RealTek RTL-8139 EtherCAT driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(EC_MASTER_VERSION); + +module_param(use_io, int, 0); +MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO"); +module_param(multicast_filter_limit, int, 0); +module_param_array(media, int, NULL, 0); +module_param_array(full_duplex, int, NULL, 0); +module_param(debug, int, 0); +MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); +MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); +MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); +MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); + +void ec_poll(struct net_device *); + +static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); +static int rtl8139_open (struct net_device *dev); +static int mdio_read (struct net_device *dev, int phy_id, int location); +static void mdio_write (struct net_device *dev, int phy_id, int location, + int val); +static void rtl8139_start_thread(struct rtl8139_private *tp); +static void rtl8139_tx_timeout (struct net_device *dev); +static void rtl8139_init_ring (struct net_device *dev); +static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb, + struct net_device *dev); +#ifdef CONFIG_NET_POLL_CONTROLLER +static void rtl8139_poll_controller(struct net_device *dev); +#endif +static int rtl8139_set_mac_address(struct net_device *dev, void *p); +static int rtl8139_poll(struct napi_struct *napi, int budget); +static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance); +static int rtl8139_close (struct net_device *dev); +static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); +static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); +static void rtl8139_set_rx_mode (struct net_device *dev); +static void __set_rx_mode (struct net_device *dev); +static void rtl8139_hw_start (struct net_device *dev); +static void rtl8139_thread (struct work_struct *work); +static void rtl8139_tx_timeout_task(struct work_struct *work); +static const struct ethtool_ops rtl8139_ethtool_ops; + +/* write MMIO register, with flush */ +/* Flush avoids rtl8139 bug w/ posted MMIO writes */ +#define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) +#define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) +#define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0) + +/* write MMIO register */ +#define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) +#define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) +#define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) + +/* read MMIO register */ +#define RTL_R8(reg) ioread8 (ioaddr + (reg)) +#define RTL_R16(reg) ioread16 (ioaddr + (reg)) +#define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg))) + + +static const u16 rtl8139_intr_mask = + PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | + TxErr | TxOK | RxErr | RxOK; + +static const u16 rtl8139_norx_intr_mask = + PCIErr | PCSTimeout | RxUnderrun | + TxErr | TxOK | RxErr ; + +#if RX_BUF_IDX == 0 +static const unsigned int rtl8139_rx_config = + RxCfgRcv8K | RxNoWrap | + (RX_FIFO_THRESH << RxCfgFIFOShift) | + (RX_DMA_BURST << RxCfgDMAShift); +#elif RX_BUF_IDX == 1 +static const unsigned int rtl8139_rx_config = + RxCfgRcv16K | RxNoWrap | + (RX_FIFO_THRESH << RxCfgFIFOShift) | + (RX_DMA_BURST << RxCfgDMAShift); +#elif RX_BUF_IDX == 2 +static const unsigned int rtl8139_rx_config = + RxCfgRcv32K | RxNoWrap | + (RX_FIFO_THRESH << RxCfgFIFOShift) | + (RX_DMA_BURST << RxCfgDMAShift); +#elif RX_BUF_IDX == 3 +static const unsigned int rtl8139_rx_config = + RxCfgRcv64K | + (RX_FIFO_THRESH << RxCfgFIFOShift) | + (RX_DMA_BURST << RxCfgDMAShift); +#else +#error "Invalid configuration for 8139_RXBUF_IDX" +#endif + +static const unsigned int rtl8139_tx_config = + TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); + +static void __rtl8139_cleanup_dev (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + struct pci_dev *pdev; + + assert (dev != NULL); + assert (tp->pci_dev != NULL); + pdev = tp->pci_dev; + + if (tp->mmio_addr) + pci_iounmap (pdev, tp->mmio_addr); + + /* it's ok to call this even if we have no regions to free */ + pci_release_regions (pdev); + + free_netdev(dev); + pci_set_drvdata (pdev, NULL); +} + + +static void rtl8139_chip_reset (void __iomem *ioaddr) +{ + int i; + + /* Soft reset the chip. */ + RTL_W8 (ChipCmd, CmdReset); + + /* Check that the chip has finished the reset. */ + for (i = 1000; i > 0; i--) { + barrier(); + if ((RTL_R8 (ChipCmd) & CmdReset) == 0) + break; + udelay (10); + } +} + + +static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev) +{ + void __iomem *ioaddr; + struct net_device *dev; + struct rtl8139_private *tp; + u8 tmp8; + int rc, disable_dev_on_err = 0; + unsigned int i; + unsigned long pio_start, pio_end, pio_flags, pio_len; + unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; + u32 version; + + assert (pdev != NULL); + + /* dev and priv zeroed in alloc_etherdev */ + dev = alloc_etherdev (sizeof (*tp)); + if (dev == NULL) { + dev_err(&pdev->dev, "Unable to alloc new net device\n"); + return ERR_PTR(-ENOMEM); + } + SET_NETDEV_DEV(dev, &pdev->dev); + + tp = netdev_priv(dev); + tp->pci_dev = pdev; + + /* enable device (incl. PCI PM wakeup and hotplug setup) */ + rc = pci_enable_device (pdev); + if (rc) + goto err_out; + + pio_start = pci_resource_start (pdev, 0); + pio_end = pci_resource_end (pdev, 0); + pio_flags = pci_resource_flags (pdev, 0); + pio_len = pci_resource_len (pdev, 0); + + mmio_start = pci_resource_start (pdev, 1); + mmio_end = pci_resource_end (pdev, 1); + mmio_flags = pci_resource_flags (pdev, 1); + mmio_len = pci_resource_len (pdev, 1); + + /* set this immediately, we need to know before + * we talk to the chip directly */ + pr_debug("PIO region size == 0x%02lX\n", pio_len); + pr_debug("MMIO region size == 0x%02lX\n", mmio_len); + +retry: + if (use_io) { + /* make sure PCI base addr 0 is PIO */ + if (!(pio_flags & IORESOURCE_IO)) { + dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n"); + rc = -ENODEV; + goto err_out; + } + /* check for weird/broken PCI region reporting */ + if (pio_len < RTL_MIN_IO_SIZE) { + dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n"); + rc = -ENODEV; + goto err_out; + } + } else { + /* make sure PCI base addr 1 is MMIO */ + if (!(mmio_flags & IORESOURCE_MEM)) { + dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); + rc = -ENODEV; + goto err_out; + } + if (mmio_len < RTL_MIN_IO_SIZE) { + dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n"); + rc = -ENODEV; + goto err_out; + } + } + + rc = pci_request_regions (pdev, DRV_NAME); + if (rc) + goto err_out; + disable_dev_on_err = 1; + + /* enable PCI bus-mastering */ + pci_set_master (pdev); + + if (use_io) { + ioaddr = pci_iomap(pdev, 0, 0); + if (!ioaddr) { + dev_err(&pdev->dev, "cannot map PIO, aborting\n"); + rc = -EIO; + goto err_out; + } + dev->base_addr = pio_start; + tp->regs_len = pio_len; + } else { + /* ioremap MMIO region */ + ioaddr = pci_iomap(pdev, 1, 0); + if (ioaddr == NULL) { + dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n"); + pci_release_regions(pdev); + use_io = 1; + goto retry; + } + dev->base_addr = (long) ioaddr; + tp->regs_len = mmio_len; + } + tp->mmio_addr = ioaddr; + + /* Bring old chips out of low-power mode. */ + RTL_W8 (HltClk, 'R'); + + /* check for missing/broken hardware */ + if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { + dev_err(&pdev->dev, "Chip not responding, ignoring board\n"); + rc = -EIO; + goto err_out; + } + + /* identify chip attached to board */ + version = RTL_R32 (TxConfig) & HW_REVID_MASK; + for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) + if (version == rtl_chip_info[i].version) { + tp->chipset = i; + goto match; + } + + /* if unknown chip, assume array element #0, original RTL-8139 in this case */ + dev_dbg(&pdev->dev, "unknown chip version, assuming RTL-8139\n"); + dev_dbg(&pdev->dev, "TxConfig = 0x%lx\n", RTL_R32 (TxConfig)); + tp->chipset = 0; + +match: + pr_debug("chipset id (%d) == index %d, '%s'\n", + version, i, rtl_chip_info[i].name); + + if (tp->chipset >= CH_8139B) { + u8 new_tmp8 = tmp8 = RTL_R8 (Config1); + pr_debug("PCI PM wakeup\n"); + if ((rtl_chip_info[tp->chipset].flags & HasLWake) && + (tmp8 & LWAKE)) + new_tmp8 &= ~LWAKE; + new_tmp8 |= Cfg1_PM_Enable; + if (new_tmp8 != tmp8) { + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W8 (Config1, tmp8); + RTL_W8 (Cfg9346, Cfg9346_Lock); + } + if (rtl_chip_info[tp->chipset].flags & HasLWake) { + tmp8 = RTL_R8 (Config4); + if (tmp8 & LWPTN) { + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W8 (Config4, tmp8 & ~LWPTN); + RTL_W8 (Cfg9346, Cfg9346_Lock); + } + } + } else { + pr_debug("Old chip wakeup\n"); + tmp8 = RTL_R8 (Config1); + tmp8 &= ~(SLEEP | PWRDN); + RTL_W8 (Config1, tmp8); + } + + rtl8139_chip_reset (ioaddr); + + return dev; + +err_out: + __rtl8139_cleanup_dev (dev); + if (disable_dev_on_err) + pci_disable_device (pdev); + return ERR_PTR(rc); +} + +static const struct net_device_ops rtl8139_netdev_ops = { + .ndo_open = rtl8139_open, + .ndo_stop = rtl8139_close, + .ndo_get_stats = rtl8139_get_stats, + .ndo_change_mtu = eth_change_mtu, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = rtl8139_set_mac_address, + .ndo_start_xmit = rtl8139_start_xmit, + .ndo_set_multicast_list = rtl8139_set_rx_mode, + .ndo_do_ioctl = netdev_ioctl, + .ndo_tx_timeout = rtl8139_tx_timeout, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = rtl8139_poll_controller, +#endif +}; + +static int __devinit rtl8139_init_one (struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *dev = NULL; + struct rtl8139_private *tp; + int i, addr_len, option; + void __iomem *ioaddr; + static int board_idx = -1; + + assert (pdev != NULL); + assert (ent != NULL); + + board_idx++; + + /* when we're built into the kernel, the driver version message + * is only printed if at least one 8139 board has been found + */ +#ifndef MODULE + { + static int printed_version; + if (!printed_version++) + pr_info(RTL8139_DRIVER_NAME "\n"); + } +#endif + + if (pdev->vendor == PCI_VENDOR_ID_REALTEK && + pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) { + dev_info(&pdev->dev, + "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip, use 8139cp\n", + pdev->vendor, pdev->device, pdev->revision); + return -ENODEV; + } + + if (pdev->vendor == PCI_VENDOR_ID_REALTEK && + pdev->device == PCI_DEVICE_ID_REALTEK_8139 && + pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS && + pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) { + pr_info("8139too: OQO Model 2 detected. Forcing PIO\n"); + use_io = 1; + } + + dev = rtl8139_init_board (pdev); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + assert (dev != NULL); + tp = netdev_priv(dev); + tp->dev = dev; + + ioaddr = tp->mmio_addr; + assert (ioaddr != NULL); + + addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; + for (i = 0; i < 3; i++) + ((__le16 *) (dev->dev_addr))[i] = + cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len)); + memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); + + /* The Rtl8139-specific entries in the device structure. */ + dev->netdev_ops = &rtl8139_netdev_ops; + dev->ethtool_ops = &rtl8139_ethtool_ops; + dev->watchdog_timeo = TX_TIMEOUT; + netif_napi_add(dev, &tp->napi, rtl8139_poll, 64); + + /* note: the hardware is not capable of sg/csum/highdma, however + * through the use of skb_copy_and_csum_dev we enable these + * features + */ + dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; + + dev->irq = pdev->irq; + + /* tp zeroed and aligned in alloc_etherdev */ + tp = netdev_priv(dev); + + /* note: tp->chipset set in rtl8139_init_board */ + tp->drv_flags = board_info[ent->driver_data].hw_flags; + tp->mmio_addr = ioaddr; + tp->msg_enable = + (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); + spin_lock_init (&tp->lock); + spin_lock_init (&tp->rx_lock); + INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); + tp->mii.dev = dev; + tp->mii.mdio_read = mdio_read; + tp->mii.mdio_write = mdio_write; + tp->mii.phy_id_mask = 0x3f; + tp->mii.reg_num_mask = 0x1f; + + /* dev is fully set up and ready to use now */ + // offer device to EtherCAT master module + tp->ecdev = ecdev_offer(dev, ec_poll, THIS_MODULE); + + if (!tp->ecdev) { + pr_debug("about to register device named %s (%p)...\n", dev->name, dev); + i = register_netdev (dev); + if (i) goto err_out; + } + + pci_set_drvdata (pdev, dev); + + pr_info("%s: %s at 0x%lx, %pM, IRQ %d\n", + dev->name, + board_info[ent->driver_data].name, + dev->base_addr, + dev->dev_addr, + dev->irq); + + pr_debug("%s: Identified 8139 chip type '%s'\n", + dev->name, rtl_chip_info[tp->chipset].name); + + /* Find the connected MII xcvrs. + Doing this in open() would allow detecting external xcvrs later, but + takes too much time. */ +#ifdef CONFIG_8139TOO_8129 + if (tp->drv_flags & HAS_MII_XCVR) { + int phy, phy_idx = 0; + for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { + int mii_status = mdio_read(dev, phy, 1); + if (mii_status != 0xffff && mii_status != 0x0000) { + u16 advertising = mdio_read(dev, phy, 4); + tp->phys[phy_idx++] = phy; + pr_info("%s: MII transceiver %d status 0x%4.4x advertising %4.4x.\n", + dev->name, phy, mii_status, advertising); + } + } + if (phy_idx == 0) { + pr_info("%s: No MII transceivers found! Assuming SYM transceiver.\n", + dev->name); + tp->phys[0] = 32; + } + } else +#endif + tp->phys[0] = 32; + tp->mii.phy_id = tp->phys[0]; + + /* The lower four bits are the media type. */ + option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; + if (option > 0) { + tp->mii.full_duplex = (option & 0x210) ? 1 : 0; + tp->default_port = option & 0xFF; + if (tp->default_port) + tp->mii.force_media = 1; + } + if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) + tp->mii.full_duplex = full_duplex[board_idx]; + if (tp->mii.full_duplex) { + pr_info("%s: Media type forced to Full Duplex.\n", dev->name); + /* Changing the MII-advertised media because might prevent + re-connection. */ + tp->mii.force_media = 1; + } + if (tp->default_port) { + pr_info(" Forcing %dMbps %s-duplex operation.\n", + (option & 0x20 ? 100 : 10), + (option & 0x10 ? "full" : "half")); + mdio_write(dev, tp->phys[0], 0, + ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ + ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ + } + + /* Put the chip into low-power mode. */ + if (rtl_chip_info[tp->chipset].flags & HasHltClk) + RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ + + if (tp->ecdev && ecdev_open(tp->ecdev)) { + ecdev_withdraw(tp->ecdev); + goto err_out; + } + + return 0; + +err_out: + __rtl8139_cleanup_dev (dev); + pci_disable_device (pdev); + return i; +} + + +static void __devexit rtl8139_remove_one (struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata (pdev); + struct rtl8139_private *tp = netdev_priv(dev); + + assert (dev != NULL); + + flush_scheduled_work(); + + if (tp->ecdev) { + ecdev_close(tp->ecdev); + ecdev_withdraw(tp->ecdev); + } + else { + unregister_netdev (dev); + } + + __rtl8139_cleanup_dev (dev); + pci_disable_device (pdev); +} + + +/* Serial EEPROM section. */ + +/* EEPROM_Ctrl bits. */ +#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ +#define EE_CS 0x08 /* EEPROM chip select. */ +#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ +#define EE_WRITE_0 0x00 +#define EE_WRITE_1 0x02 +#define EE_DATA_READ 0x01 /* EEPROM chip data out. */ +#define EE_ENB (0x80 | EE_CS) + +/* Delay between EEPROM clock transitions. + No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. + */ + +#define eeprom_delay() (void)RTL_R32(Cfg9346) + +/* The EEPROM commands include the alway-set leading bit. */ +#define EE_WRITE_CMD (5) +#define EE_READ_CMD (6) +#define EE_ERASE_CMD (7) + +static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len) +{ + int i; + unsigned retval = 0; + int read_cmd = location | (EE_READ_CMD << addr_len); + + RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); + RTL_W8 (Cfg9346, EE_ENB); + eeprom_delay (); + + /* Shift the read command bits out. */ + for (i = 4 + addr_len; i >= 0; i--) { + int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; + RTL_W8 (Cfg9346, EE_ENB | dataval); + eeprom_delay (); + RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); + eeprom_delay (); + } + RTL_W8 (Cfg9346, EE_ENB); + eeprom_delay (); + + for (i = 16; i > 0; i--) { + RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); + eeprom_delay (); + retval = + (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : + 0); + RTL_W8 (Cfg9346, EE_ENB); + eeprom_delay (); + } + + /* Terminate the EEPROM access. */ + RTL_W8 (Cfg9346, ~EE_CS); + eeprom_delay (); + + return retval; +} + +/* MII serial management: mostly bogus for now. */ +/* Read and write the MII management registers using software-generated + serial MDIO protocol. + The maximum data clock rate is 2.5 Mhz. The minimum timing is usually + met by back-to-back PCI I/O cycles, but we insert a delay to avoid + "overclocking" issues. */ +#define MDIO_DIR 0x80 +#define MDIO_DATA_OUT 0x04 +#define MDIO_DATA_IN 0x02 +#define MDIO_CLK 0x01 +#define MDIO_WRITE0 (MDIO_DIR) +#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) + +#define mdio_delay() RTL_R8(Config4) + + +static const char mii_2_8139_map[8] = { + BasicModeCtrl, + BasicModeStatus, + 0, + 0, + NWayAdvert, + NWayLPAR, + NWayExpansion, + 0 +}; + + +#ifdef CONFIG_8139TOO_8129 +/* Syncronize the MII management interface by shifting 32 one bits out. */ +static void mdio_sync (void __iomem *ioaddr) +{ + int i; + + for (i = 32; i >= 0; i--) { + RTL_W8 (Config4, MDIO_WRITE1); + mdio_delay (); + RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); + mdio_delay (); + } +} +#endif + +static int mdio_read (struct net_device *dev, int phy_id, int location) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int retval = 0; +#ifdef CONFIG_8139TOO_8129 + void __iomem *ioaddr = tp->mmio_addr; + int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; + int i; +#endif + + if (phy_id > 31) { /* Really a 8139. Use internal registers. */ + void __iomem *ioaddr = tp->mmio_addr; + return location < 8 && mii_2_8139_map[location] ? + RTL_R16 (mii_2_8139_map[location]) : 0; + } + +#ifdef CONFIG_8139TOO_8129 + mdio_sync (ioaddr); + /* Shift the read command bits out. */ + for (i = 15; i >= 0; i--) { + int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; + + RTL_W8 (Config4, MDIO_DIR | dataval); + mdio_delay (); + RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); + mdio_delay (); + } + + /* Read the two transition, 16 data, and wire-idle bits. */ + for (i = 19; i > 0; i--) { + RTL_W8 (Config4, 0); + mdio_delay (); + retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); + RTL_W8 (Config4, MDIO_CLK); + mdio_delay (); + } +#endif + + return (retval >> 1) & 0xffff; +} + + +static void mdio_write (struct net_device *dev, int phy_id, int location, + int value) +{ + struct rtl8139_private *tp = netdev_priv(dev); +#ifdef CONFIG_8139TOO_8129 + void __iomem *ioaddr = tp->mmio_addr; + int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; + int i; +#endif + + if (phy_id > 31) { /* Really a 8139. Use internal registers. */ + void __iomem *ioaddr = tp->mmio_addr; + if (location == 0) { + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W16 (BasicModeCtrl, value); + RTL_W8 (Cfg9346, Cfg9346_Lock); + } else if (location < 8 && mii_2_8139_map[location]) + RTL_W16 (mii_2_8139_map[location], value); + return; + } + +#ifdef CONFIG_8139TOO_8129 + mdio_sync (ioaddr); + + /* Shift the command bits out. */ + for (i = 31; i >= 0; i--) { + int dataval = + (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; + RTL_W8 (Config4, dataval); + mdio_delay (); + RTL_W8 (Config4, dataval | MDIO_CLK); + mdio_delay (); + } + /* Clear out extra bits. */ + for (i = 2; i > 0; i--) { + RTL_W8 (Config4, 0); + mdio_delay (); + RTL_W8 (Config4, MDIO_CLK); + mdio_delay (); + } +#endif +} + + +static int rtl8139_open (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int retval; + void __iomem *ioaddr = tp->mmio_addr; + + if (!tp->ecdev) { + retval = request_irq(dev->irq, rtl8139_interrupt, + IRQF_SHARED, dev->name, dev); + if (retval) + return retval; + } + + tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, + &tp->tx_bufs_dma, GFP_KERNEL); + tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, + &tp->rx_ring_dma, GFP_KERNEL); + if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { + if (!tp->ecdev) free_irq(dev->irq, dev); + + if (tp->tx_bufs) + dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, + tp->tx_bufs, tp->tx_bufs_dma); + if (tp->rx_ring) + dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, + tp->rx_ring, tp->rx_ring_dma); + + return -ENOMEM; + + } + + napi_enable(&tp->napi); + + tp->mii.full_duplex = tp->mii.force_media; + tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000; + + rtl8139_init_ring (dev); + rtl8139_hw_start (dev); + netif_start_queue (dev); + + if (!tp->ecdev) { + if (netif_msg_ifup(tp)) + pr_debug("%s: rtl8139_open() ioaddr %#llx IRQ %d" + " GP Pins %2.2x %s-duplex.\n", dev->name, + (unsigned long long)pci_resource_start (tp->pci_dev, 1), + dev->irq, RTL_R8 (MediaStatus), + tp->mii.full_duplex ? "full" : "half"); + + rtl8139_start_thread(tp); + } + + return 0; +} + + +static void rtl_check_media (struct net_device *dev, unsigned int init_media) +{ + struct rtl8139_private *tp = netdev_priv(dev); + + if (tp->ecdev) { + void __iomem *ioaddr = tp->mmio_addr; + u16 state = RTL_R16(BasicModeStatus) & BMSR_LSTATUS; + ecdev_set_link(tp->ecdev, state ? 1 : 0); + } + else { + if (tp->phys[0] >= 0) { + mii_check_media(&tp->mii, netif_msg_link(tp), init_media); + } + } +} + +/* Start the hardware at open or resume. */ +static void rtl8139_hw_start (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + u32 i; + u8 tmp; + + /* Bring old chips out of low-power mode. */ + if (rtl_chip_info[tp->chipset].flags & HasHltClk) + RTL_W8 (HltClk, 'R'); + + rtl8139_chip_reset (ioaddr); + + /* unlock Config[01234] and BMCR register writes */ + RTL_W8_F (Cfg9346, Cfg9346_Unlock); + /* Restore our idea of the MAC address. */ + RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); + RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4))); + + tp->cur_rx = 0; + + /* init Rx ring buffer DMA address */ + RTL_W32_F (RxBuf, tp->rx_ring_dma); + + /* Must enable Tx/Rx before setting transfer thresholds! */ + RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); + + tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; + RTL_W32 (RxConfig, tp->rx_config); + RTL_W32 (TxConfig, rtl8139_tx_config); + + rtl_check_media (dev, 1); + + if (tp->chipset >= CH_8139B) { + /* Disable magic packet scanning, which is enabled + * when PM is enabled in Config1. It can be reenabled + * via ETHTOOL_SWOL if desired. */ + RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); + } + + pr_debug("init buffer addresses\n"); + + /* Lock Config[01234] and BMCR register writes */ + RTL_W8 (Cfg9346, Cfg9346_Lock); + + /* init Tx buffer DMA addresses */ + for (i = 0; i < NUM_TX_DESC; i++) + RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); + + RTL_W32 (RxMissed, 0); + + rtl8139_set_rx_mode (dev); + + /* no early-rx interrupts */ + RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); + + /* make sure RxTx has started */ + tmp = RTL_R8 (ChipCmd); + if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) + RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); + + if (!tp->ecdev) + /* Enable all known interrupts by setting the interrupt mask. */ + RTL_W16 (IntrMask, rtl8139_intr_mask); +} + + +/* Initialize the Rx and Tx rings, along with various 'dev' bits. */ +static void rtl8139_init_ring (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int i; + + tp->cur_rx = 0; + tp->cur_tx = 0; + tp->dirty_tx = 0; + + for (i = 0; i < NUM_TX_DESC; i++) + tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; +} + + +/* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ +static int next_tick = 3 * HZ; + +#ifndef CONFIG_8139TOO_TUNE_TWISTER +static inline void rtl8139_tune_twister (struct net_device *dev, + struct rtl8139_private *tp) {} +#else +enum TwisterParamVals { + PARA78_default = 0x78fa8388, + PARA7c_default = 0xcb38de43, /* param[0][3] */ + PARA7c_xxx = 0xcb38de43, +}; + +static const unsigned long param[4][4] = { + {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, + {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, + {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, + {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} +}; + +static void rtl8139_tune_twister (struct net_device *dev, + struct rtl8139_private *tp) +{ + int linkcase; + void __iomem *ioaddr = tp->mmio_addr; + + /* This is a complicated state machine to configure the "twister" for + impedance/echos based on the cable length. + All of this is magic and undocumented. + */ + switch (tp->twistie) { + case 1: + if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { + /* We have link beat, let us tune the twister. */ + RTL_W16 (CSCR, CSCR_LinkDownOffCmd); + tp->twistie = 2; /* Change to state 2. */ + next_tick = HZ / 10; + } else { + /* Just put in some reasonable defaults for when beat returns. */ + RTL_W16 (CSCR, CSCR_LinkDownCmd); + RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ + RTL_W32 (PARA78, PARA78_default); + RTL_W32 (PARA7c, PARA7c_default); + tp->twistie = 0; /* Bail from future actions. */ + } + break; + case 2: + /* Read how long it took to hear the echo. */ + linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; + if (linkcase == 0x7000) + tp->twist_row = 3; + else if (linkcase == 0x3000) + tp->twist_row = 2; + else if (linkcase == 0x1000) + tp->twist_row = 1; + else + tp->twist_row = 0; + tp->twist_col = 0; + tp->twistie = 3; /* Change to state 2. */ + next_tick = HZ / 10; + break; + case 3: + /* Put out four tuning parameters, one per 100msec. */ + if (tp->twist_col == 0) + RTL_W16 (FIFOTMS, 0); + RTL_W32 (PARA7c, param[(int) tp->twist_row] + [(int) tp->twist_col]); + next_tick = HZ / 10; + if (++tp->twist_col >= 4) { + /* For short cables we are done. + For long cables (row == 3) check for mistune. */ + tp->twistie = + (tp->twist_row == 3) ? 4 : 0; + } + break; + case 4: + /* Special case for long cables: check for mistune. */ + if ((RTL_R16 (CSCR) & + CSCR_LinkStatusBits) == 0x7000) { + tp->twistie = 0; + break; + } else { + RTL_W32 (PARA7c, 0xfb38de03); + tp->twistie = 5; + next_tick = HZ / 10; + } + break; + case 5: + /* Retune for shorter cable (column 2). */ + RTL_W32 (FIFOTMS, 0x20); + RTL_W32 (PARA78, PARA78_default); + RTL_W32 (PARA7c, PARA7c_default); + RTL_W32 (FIFOTMS, 0x00); + tp->twist_row = 2; + tp->twist_col = 0; + tp->twistie = 3; + next_tick = HZ / 10; + break; + + default: + /* do nothing */ + break; + } +} +#endif /* CONFIG_8139TOO_TUNE_TWISTER */ + +static inline void rtl8139_thread_iter (struct net_device *dev, + struct rtl8139_private *tp, + void __iomem *ioaddr) +{ + int mii_lpa; + + mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); + + if (!tp->mii.force_media && mii_lpa != 0xffff) { + int duplex = ((mii_lpa & LPA_100FULL) || + (mii_lpa & 0x01C0) == 0x0040); + if (tp->mii.full_duplex != duplex) { + tp->mii.full_duplex = duplex; + + if (mii_lpa) { + pr_info("%s: Setting %s-duplex based on MII #%d link" + " partner ability of %4.4x.\n", + dev->name, + tp->mii.full_duplex ? "full" : "half", + tp->phys[0], mii_lpa); + } else { + pr_info("%s: media is unconnected, link down, or incompatible connection\n", + dev->name); + } +#if 0 + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); + RTL_W8 (Cfg9346, Cfg9346_Lock); +#endif + } + } + + next_tick = HZ * 60; + + rtl8139_tune_twister (dev, tp); + + pr_debug("%s: Media selection tick, Link partner %4.4x.\n", + dev->name, RTL_R16 (NWayLPAR)); + pr_debug("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n", + dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus)); + pr_debug("%s: Chip config %2.2x %2.2x.\n", + dev->name, RTL_R8 (Config0), + RTL_R8 (Config1)); +} + +static void rtl8139_thread (struct work_struct *work) +{ + struct rtl8139_private *tp = + container_of(work, struct rtl8139_private, thread.work); + struct net_device *dev = tp->mii.dev; + unsigned long thr_delay = next_tick; + + rtnl_lock(); + + if (!netif_running(dev)) + goto out_unlock; + + if (tp->watchdog_fired) { + tp->watchdog_fired = 0; + rtl8139_tx_timeout_task(work); + } else + rtl8139_thread_iter(dev, tp, tp->mmio_addr); + + if (tp->have_thread) + schedule_delayed_work(&tp->thread, thr_delay); +out_unlock: + rtnl_unlock (); +} + +static void rtl8139_start_thread(struct rtl8139_private *tp) +{ + tp->twistie = 0; + if (tp->chipset == CH_8139_K) + tp->twistie = 1; + else if (tp->drv_flags & HAS_LNK_CHNG) + return; + + tp->have_thread = 1; + tp->watchdog_fired = 0; + + schedule_delayed_work(&tp->thread, next_tick); +} + +static inline void rtl8139_tx_clear (struct rtl8139_private *tp) +{ + tp->cur_tx = 0; + tp->dirty_tx = 0; + + /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ +} + +static void rtl8139_tx_timeout_task (struct work_struct *work) +{ + struct rtl8139_private *tp = + container_of(work, struct rtl8139_private, thread.work); + struct net_device *dev = tp->mii.dev; + void __iomem *ioaddr = tp->mmio_addr; + int i; + u8 tmp8; + + pr_debug("%s: Transmit timeout, status %2.2x %4.4x %4.4x media %2.2x.\n", + dev->name, RTL_R8 (ChipCmd), + RTL_R16(IntrStatus), RTL_R16(IntrMask), RTL_R8(MediaStatus)); + /* Emit info to figure out what went wrong. */ + pr_debug("%s: Tx queue start entry %ld dirty entry %ld.\n", + dev->name, tp->cur_tx, tp->dirty_tx); + for (i = 0; i < NUM_TX_DESC; i++) + pr_debug("%s: Tx descriptor %d is %8.8lx.%s\n", + dev->name, i, RTL_R32 (TxStatus0 + (i * 4)), + i == tp->dirty_tx % NUM_TX_DESC ? + " (queue head)" : ""); + + tp->xstats.tx_timeouts++; + + /* disable Tx ASAP, if not already */ + tmp8 = RTL_R8 (ChipCmd); + if (tmp8 & CmdTxEnb) + RTL_W8 (ChipCmd, CmdRxEnb); + + if (tp->ecdev) { + rtl8139_tx_clear (tp); + rtl8139_hw_start (dev); + } + else { + spin_lock_bh(&tp->rx_lock); + /* Disable interrupts by clearing the interrupt mask. */ + RTL_W16 (IntrMask, 0x0000); + + /* Stop a shared interrupt from scavenging while we are. */ + spin_lock_irq(&tp->lock); + rtl8139_tx_clear (tp); + spin_unlock_irq(&tp->lock); + + /* ...and finally, reset everything */ + if (netif_running(dev)) { + rtl8139_hw_start (dev); + netif_wake_queue (dev); + } + spin_unlock_bh(&tp->rx_lock); + } +} + +static void rtl8139_tx_timeout (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + + tp->watchdog_fired = 1; + if (!tp->ecdev && !tp->have_thread) { + INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); + schedule_delayed_work(&tp->thread, next_tick); + } +} + +static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb, + struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + unsigned int entry; + unsigned int len = skb->len; + unsigned long flags; + + /* Calculate the next Tx descriptor entry. */ + entry = tp->cur_tx % NUM_TX_DESC; + + /* Note: the chip doesn't have auto-pad! */ + if (likely(len < TX_BUF_SIZE)) { + if (len < ETH_ZLEN) + memset(tp->tx_buf[entry], 0, ETH_ZLEN); + skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); + if (!tp->ecdev) dev_kfree_skb(skb); + } else { + if (!tp->ecdev) dev_kfree_skb(skb); + dev->stats.tx_dropped++; + return NETDEV_TX_OK; + } + + if (tp->ecdev) { + wmb(); + RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), + tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); + + dev->trans_start = jiffies; + + tp->cur_tx++; + } else { + spin_lock_irqsave(&tp->lock, flags); + /* + * Writing to TxStatus triggers a DMA transfer of the data + * copied to tp->tx_buf[entry] above. Use a memory barrier + * to make sure that the device sees the updated data. + */ + wmb(); + RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), + tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); + + dev->trans_start = jiffies; + + tp->cur_tx++; + + if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) + netif_stop_queue (dev); + spin_unlock_irqrestore(&tp->lock, flags); + + if (netif_msg_tx_queued(tp)) + pr_debug("%s: Queued Tx packet size %u to slot %d.\n", + dev->name, len, entry); + } + return NETDEV_TX_OK; +} + + +static void rtl8139_tx_interrupt (struct net_device *dev, + struct rtl8139_private *tp, + void __iomem *ioaddr) +{ + unsigned long dirty_tx, tx_left; + + assert (dev != NULL); + assert (ioaddr != NULL); + + dirty_tx = tp->dirty_tx; + tx_left = tp->cur_tx - dirty_tx; + while (tx_left > 0) { + int entry = dirty_tx % NUM_TX_DESC; + int txstatus; + + txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); + + if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) + break; /* It still hasn't been Txed */ + + /* Note: TxCarrierLost is always asserted at 100mbps. */ + if (txstatus & (TxOutOfWindow | TxAborted)) { + /* There was an major error, log it. */ + if (netif_msg_tx_err(tp)) + pr_debug("%s: Transmit error, Tx status %8.8x.\n", + dev->name, txstatus); + dev->stats.tx_errors++; + if (txstatus & TxAborted) { + dev->stats.tx_aborted_errors++; + RTL_W32 (TxConfig, TxClearAbt); + RTL_W16 (IntrStatus, TxErr); + wmb(); + } + if (txstatus & TxCarrierLost) + dev->stats.tx_carrier_errors++; + if (txstatus & TxOutOfWindow) + dev->stats.tx_window_errors++; + } else { + if (txstatus & TxUnderrun) { + /* Add 64 to the Tx FIFO threshold. */ + if (tp->tx_flag < 0x00300000) + tp->tx_flag += 0x00020000; + dev->stats.tx_fifo_errors++; + } + dev->stats.collisions += (txstatus >> 24) & 15; + dev->stats.tx_bytes += txstatus & 0x7ff; + dev->stats.tx_packets++; + } + + dirty_tx++; + tx_left--; + } + +#ifndef RTL8139_NDEBUG + if (!tp->ecdev && tp->cur_tx - dirty_tx > NUM_TX_DESC) { + pr_err("%s: Out-of-sync dirty pointer, %ld vs. %ld.\n", + dev->name, dirty_tx, tp->cur_tx); + dirty_tx += NUM_TX_DESC; + } +#endif /* RTL8139_NDEBUG */ + + /* only wake the queue if we did work, and the queue is stopped */ + if (tp->dirty_tx != dirty_tx) { + tp->dirty_tx = dirty_tx; + mb(); + if (!tp->ecdev) netif_wake_queue (dev); + } +} + + +/* TODO: clean this up! Rx reset need not be this intensive */ +static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, + struct rtl8139_private *tp, void __iomem *ioaddr) +{ + u8 tmp8; +#ifdef CONFIG_8139_OLD_RX_RESET + int tmp_work; +#endif + + if (netif_msg_rx_err (tp)) + pr_debug("%s: Ethernet frame had errors, status %8.8x.\n", + dev->name, rx_status); + dev->stats.rx_errors++; + if (!(rx_status & RxStatusOK)) { + if (rx_status & RxTooLong) { + pr_debug("%s: Oversized Ethernet frame, status %4.4x!\n", + dev->name, rx_status); + /* A.C.: The chip hangs here. */ + } + if (rx_status & (RxBadSymbol | RxBadAlign)) + dev->stats.rx_frame_errors++; + if (rx_status & (RxRunt | RxTooLong)) + dev->stats.rx_length_errors++; + if (rx_status & RxCRCErr) + dev->stats.rx_crc_errors++; + } else { + tp->xstats.rx_lost_in_ring++; + } + +#ifndef CONFIG_8139_OLD_RX_RESET + tmp8 = RTL_R8 (ChipCmd); + RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); + RTL_W8 (ChipCmd, tmp8); + RTL_W32 (RxConfig, tp->rx_config); + tp->cur_rx = 0; +#else + /* Reset the receiver, based on RealTek recommendation. (Bug?) */ + + /* disable receive */ + RTL_W8_F (ChipCmd, CmdTxEnb); + tmp_work = 200; + while (--tmp_work > 0) { + udelay(1); + tmp8 = RTL_R8 (ChipCmd); + if (!(tmp8 & CmdRxEnb)) + break; + } + if (tmp_work <= 0) + pr_warning(PFX "rx stop wait too long\n"); + /* restart receive */ + tmp_work = 200; + while (--tmp_work > 0) { + RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); + udelay(1); + tmp8 = RTL_R8 (ChipCmd); + if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) + break; + } + if (tmp_work <= 0) + pr_warning(PFX "tx/rx enable wait too long\n"); + + /* and reinitialize all rx related registers */ + RTL_W8_F (Cfg9346, Cfg9346_Unlock); + /* Must enable Tx/Rx before setting transfer thresholds! */ + RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); + + tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; + RTL_W32 (RxConfig, tp->rx_config); + tp->cur_rx = 0; + + pr_debug("init buffer addresses\n"); + + /* Lock Config[01234] and BMCR register writes */ + RTL_W8 (Cfg9346, Cfg9346_Lock); + + /* init Rx ring buffer DMA address */ + RTL_W32_F (RxBuf, tp->rx_ring_dma); + + /* A.C.: Reset the multicast list. */ + __set_rx_mode (dev); +#endif +} + +#if RX_BUF_IDX == 3 +static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring, + u32 offset, unsigned int size) +{ + u32 left = RX_BUF_LEN - offset; + + if (size > left) { + skb_copy_to_linear_data(skb, ring + offset, left); + skb_copy_to_linear_data_offset(skb, left, ring, size - left); + } else + skb_copy_to_linear_data(skb, ring + offset, size); +} +#endif + +static void rtl8139_isr_ack(struct rtl8139_private *tp) +{ + void __iomem *ioaddr = tp->mmio_addr; + u16 status; + + status = RTL_R16 (IntrStatus) & RxAckBits; + + /* Clear out errors and receive interrupts */ + if (likely(status != 0)) { + if (unlikely(status & (RxFIFOOver | RxOverflow))) { + tp->dev->stats.rx_errors++; + if (status & RxFIFOOver) + tp->dev->stats.rx_fifo_errors++; + } + RTL_W16_F (IntrStatus, RxAckBits); + } +} + +static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, + int budget) +{ + void __iomem *ioaddr = tp->mmio_addr; + int received = 0; + unsigned char *rx_ring = tp->rx_ring; + unsigned int cur_rx = tp->cur_rx; + unsigned int rx_size = 0; + + pr_debug("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x," + " free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx, + RTL_R16 (RxBufAddr), + RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); + + while ((tp->ecdev || netif_running(dev)) + && received < budget + && (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { + u32 ring_offset = cur_rx % RX_BUF_LEN; + u32 rx_status; + unsigned int pkt_size; + struct sk_buff *skb; + + rmb(); + + /* read size+status of next frame from DMA ring buffer */ + rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset)); + rx_size = rx_status >> 16; + pkt_size = rx_size - 4; + + if (!tp->ecdev) { + if (netif_msg_rx_status(tp)) + pr_debug("%s: rtl8139_rx() status %4.4x, size %4.4x," + " cur %4.4x.\n", dev->name, rx_status, + rx_size, cur_rx); + } +#if RTL8139_DEBUG > 2 + { + int i; + pr_debug("%s: Frame contents ", dev->name); + for (i = 0; i < 70; i++) + pr_cont(" %2.2x", + rx_ring[ring_offset + i]); + pr_cont(".\n"); + } +#endif + + /* Packet copy from FIFO still in progress. + * Theoretically, this should never happen + * since EarlyRx is disabled. + */ + if (unlikely(rx_size == 0xfff0)) { + if (!tp->fifo_copy_timeout) + tp->fifo_copy_timeout = jiffies + 2; + else if (time_after(jiffies, tp->fifo_copy_timeout)) { + pr_debug("%s: hung FIFO. Reset.", dev->name); + rx_size = 0; + goto no_early_rx; + } + if (netif_msg_intr(tp)) { + pr_debug("%s: fifo copy in progress.", + dev->name); + } + tp->xstats.early_rx++; + break; + } + +no_early_rx: + tp->fifo_copy_timeout = 0; + + /* If Rx err or invalid rx_size/rx_status received + * (which happens if we get lost in the ring), + * Rx process gets reset, so we abort any further + * Rx processing. + */ + if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || + (rx_size < 8) || + (!(rx_status & RxStatusOK)))) { + rtl8139_rx_err (rx_status, dev, tp, ioaddr); + received = -1; + goto out; + } + + if (tp->ecdev) { + ecdev_receive(tp->ecdev, + &rx_ring[ring_offset + 4], pkt_size); + dev->last_rx = jiffies; + dev->stats.rx_bytes += pkt_size; + dev->stats.rx_packets++; + } else { + /* Malloc up new buffer, compatible with net-2e. */ + /* Omit the four octet CRC from the length. */ + + skb = netdev_alloc_skb_ip_align(dev, pkt_size); + if (likely(skb)) { +#if RX_BUF_IDX == 3 + wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); +#else + skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size); +#endif + skb_put (skb, pkt_size); + + skb->protocol = eth_type_trans (skb, dev); + + dev->stats.rx_bytes += pkt_size; + dev->stats.rx_packets++; + + netif_receive_skb (skb); + } else { + if (net_ratelimit()) + pr_warning("%s: Memory squeeze, dropping packet.\n", + dev->name); + dev->stats.rx_dropped++; + } + } + received++; + + cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; + RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); + + rtl8139_isr_ack(tp); + } + + if (unlikely(!received || rx_size == 0xfff0)) + rtl8139_isr_ack(tp); + + pr_debug("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x," + " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx, + RTL_R16 (RxBufAddr), + RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); + + tp->cur_rx = cur_rx; + + /* + * The receive buffer should be mostly empty. + * Tell NAPI to reenable the Rx irq. + */ + if (tp->fifo_copy_timeout) + received = budget; + +out: + return received; +} + + +static void rtl8139_weird_interrupt (struct net_device *dev, + struct rtl8139_private *tp, + void __iomem *ioaddr, + int status, int link_changed) +{ + pr_debug("%s: Abnormal interrupt, status %8.8x.\n", + dev->name, status); + + assert (dev != NULL); + assert (tp != NULL); + assert (ioaddr != NULL); + + /* Update the error count. */ + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + + if ((status & RxUnderrun) && link_changed && + (tp->drv_flags & HAS_LNK_CHNG)) { + rtl_check_media(dev, 0); + status &= ~RxUnderrun; + } + + if (status & (RxUnderrun | RxErr)) + dev->stats.rx_errors++; + + if (status & PCSTimeout) + dev->stats.rx_length_errors++; + if (status & RxUnderrun) + dev->stats.rx_fifo_errors++; + if (status & PCIErr) { + u16 pci_cmd_status; + pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); + pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); + + pr_err("%s: PCI Bus error %4.4x.\n", + dev->name, pci_cmd_status); + } +} + +static int rtl8139_poll(struct napi_struct *napi, int budget) +{ + struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi); + struct net_device *dev = tp->dev; + void __iomem *ioaddr = tp->mmio_addr; + int work_done; + + spin_lock(&tp->rx_lock); + work_done = 0; + if (likely(RTL_R16(IntrStatus) & RxAckBits)) + work_done += rtl8139_rx(dev, tp, budget); + + if (work_done < budget) { + unsigned long flags; + /* + * Order is important since data can get interrupted + * again when we think we are done. + */ + spin_lock_irqsave(&tp->lock, flags); + RTL_W16_F(IntrMask, rtl8139_intr_mask); + __napi_complete(napi); + spin_unlock_irqrestore(&tp->lock, flags); + } + spin_unlock(&tp->rx_lock); + + return work_done; +} + +void ec_poll(struct net_device *dev) +{ + rtl8139_interrupt(0, dev); +} + +/* The interrupt handler does all of the Rx thread work and cleans up + after the Tx thread. */ +static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance) +{ + struct net_device *dev = (struct net_device *) dev_instance; + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + u16 status, ackstat; + int link_changed = 0; /* avoid bogus "uninit" warning */ + int handled = 0; + + if (tp->ecdev) { + status = RTL_R16 (IntrStatus); + } + else { + spin_lock (&tp->lock); + status = RTL_R16 (IntrStatus); + + /* shared irq? */ + if (unlikely((status & rtl8139_intr_mask) == 0)) + goto out; + } + + handled = 1; + + /* h/w no longer present (hotplug?) or major error, bail */ + if (unlikely(status == 0xFFFF)) + goto out; + + if (!tp->ecdev) { + /* close possible race's with dev_close */ + if (unlikely(!netif_running(dev))) { + RTL_W16 (IntrMask, 0); + goto out; + } + } + + /* Acknowledge all of the current interrupt sources ASAP, but + an first get an additional status bit from CSCR. */ + if (unlikely(status & RxUnderrun)) + link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; + + ackstat = status & ~(RxAckBits | TxErr); + if (ackstat) + RTL_W16 (IntrStatus, ackstat); + + /* Receive packets are processed by poll routine. + If not running start it now. */ + if (status & RxAckBits){ + if (tp->ecdev) { + /* EtherCAT device: Just receive all frames */ + rtl8139_rx(dev, tp, 100); // FIXME + } else { + /* Mark for polling */ + if (napi_schedule_prep(&tp->napi)) { + RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); + __napi_schedule(&tp->napi); + } + } + } + + /* Check uncommon events with one test. */ + if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) + rtl8139_weird_interrupt (dev, tp, ioaddr, + status, link_changed); + + if (status & (TxOK | TxErr)) { + rtl8139_tx_interrupt (dev, tp, ioaddr); + if (status & TxErr) + RTL_W16 (IntrStatus, TxErr); + } + out: + if (!tp->ecdev) spin_unlock (&tp->lock); + + pr_debug("%s: exiting interrupt, intr_status=%#4.4x.\n", + dev->name, RTL_R16 (IntrStatus)); + return IRQ_RETVAL(handled); +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling receive - used by netconsole and other diagnostic tools + * to allow network i/o with interrupts disabled. + */ +static void rtl8139_poll_controller(struct net_device *dev) +{ + disable_irq(dev->irq); + rtl8139_interrupt(dev->irq, dev); + enable_irq(dev->irq); +} +#endif + +static int rtl8139_set_mac_address(struct net_device *dev, void *p) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + + spin_lock_irq(&tp->lock); + + RTL_W8_F(Cfg9346, Cfg9346_Unlock); + RTL_W32_F(MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0))); + RTL_W32_F(MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4))); + RTL_W8_F(Cfg9346, Cfg9346_Lock); + + spin_unlock_irq(&tp->lock); + + return 0; +} + +static int rtl8139_close (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + unsigned long flags; + + if (tp->ecdev) { + /* Stop the chip's Tx and Rx DMA processes. */ + RTL_W8 (ChipCmd, 0); + + /* Disable interrupts by clearing the interrupt mask. */ + RTL_W16 (IntrMask, 0); + + /* Update the error counts. */ + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + } else { + netif_stop_queue(dev); + napi_disable(&tp->napi); + + if (netif_msg_ifdown(tp)) + pr_debug("%s: Shutting down ethercard, status was 0x%4.4x.\n", + dev->name, RTL_R16 (IntrStatus)); + + spin_lock_irqsave (&tp->lock, flags); + + /* Stop the chip's Tx and Rx DMA processes. */ + RTL_W8 (ChipCmd, 0); + + /* Disable interrupts by clearing the interrupt mask. */ + RTL_W16 (IntrMask, 0); + + /* Update the error counts. */ + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + + spin_unlock_irqrestore (&tp->lock, flags); + + free_irq (dev->irq, dev); + } + + rtl8139_tx_clear (tp); + + dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, + tp->rx_ring, tp->rx_ring_dma); + dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, + tp->tx_bufs, tp->tx_bufs_dma); + tp->rx_ring = NULL; + tp->tx_bufs = NULL; + + /* Green! Put the chip in low-power mode. */ + RTL_W8 (Cfg9346, Cfg9346_Unlock); + + if (rtl_chip_info[tp->chipset].flags & HasHltClk) + RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ + + return 0; +} + + +/* Get the ethtool Wake-on-LAN settings. Assumes that wol points to + kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and + other threads or interrupts aren't messing with the 8139. */ +static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + + spin_lock_irq(&tp->lock); + if (rtl_chip_info[tp->chipset].flags & HasLWake) { + u8 cfg3 = RTL_R8 (Config3); + u8 cfg5 = RTL_R8 (Config5); + + wol->supported = WAKE_PHY | WAKE_MAGIC + | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; + + wol->wolopts = 0; + if (cfg3 & Cfg3_LinkUp) + wol->wolopts |= WAKE_PHY; + if (cfg3 & Cfg3_Magic) + wol->wolopts |= WAKE_MAGIC; + /* (KON)FIXME: See how netdev_set_wol() handles the + following constants. */ + if (cfg5 & Cfg5_UWF) + wol->wolopts |= WAKE_UCAST; + if (cfg5 & Cfg5_MWF) + wol->wolopts |= WAKE_MCAST; + if (cfg5 & Cfg5_BWF) + wol->wolopts |= WAKE_BCAST; + } + spin_unlock_irq(&tp->lock); +} + + +/* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes + that wol points to kernel memory and other threads or interrupts + aren't messing with the 8139. */ +static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + u32 support; + u8 cfg3, cfg5; + + support = ((rtl_chip_info[tp->chipset].flags & HasLWake) + ? (WAKE_PHY | WAKE_MAGIC + | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) + : 0); + if (wol->wolopts & ~support) + return -EINVAL; + + spin_lock_irq(&tp->lock); + cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); + if (wol->wolopts & WAKE_PHY) + cfg3 |= Cfg3_LinkUp; + if (wol->wolopts & WAKE_MAGIC) + cfg3 |= Cfg3_Magic; + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W8 (Config3, cfg3); + RTL_W8 (Cfg9346, Cfg9346_Lock); + + cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); + /* (KON)FIXME: These are untested. We may have to set the + CRC0, Wakeup0 and LSBCRC0 registers too, but I have no + documentation. */ + if (wol->wolopts & WAKE_UCAST) + cfg5 |= Cfg5_UWF; + if (wol->wolopts & WAKE_MCAST) + cfg5 |= Cfg5_MWF; + if (wol->wolopts & WAKE_BCAST) + cfg5 |= Cfg5_BWF; + RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ + spin_unlock_irq(&tp->lock); + + return 0; +} + +static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + struct rtl8139_private *tp = netdev_priv(dev); + strcpy(info->driver, DRV_NAME); + strcpy(info->version, DRV_VERSION); + strcpy(info->bus_info, pci_name(tp->pci_dev)); + info->regdump_len = tp->regs_len; +} + +static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct rtl8139_private *tp = netdev_priv(dev); + spin_lock_irq(&tp->lock); + mii_ethtool_gset(&tp->mii, cmd); + spin_unlock_irq(&tp->lock); + return 0; +} + +static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int rc; + spin_lock_irq(&tp->lock); + rc = mii_ethtool_sset(&tp->mii, cmd); + spin_unlock_irq(&tp->lock); + return rc; +} + +static int rtl8139_nway_reset(struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + return mii_nway_restart(&tp->mii); +} + +static u32 rtl8139_get_link(struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + return mii_link_ok(&tp->mii); +} + +static u32 rtl8139_get_msglevel(struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + return tp->msg_enable; +} + +static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) +{ + struct rtl8139_private *tp = netdev_priv(dev); + tp->msg_enable = datum; +} + +static int rtl8139_get_regs_len(struct net_device *dev) +{ + struct rtl8139_private *tp; + /* TODO: we are too slack to do reg dumping for pio, for now */ + if (use_io) + return 0; + tp = netdev_priv(dev); + return tp->regs_len; +} + +static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) +{ + struct rtl8139_private *tp; + + /* TODO: we are too slack to do reg dumping for pio, for now */ + if (use_io) + return; + tp = netdev_priv(dev); + + regs->version = RTL_REGS_VER; + + spin_lock_irq(&tp->lock); + memcpy_fromio(regbuf, tp->mmio_addr, regs->len); + spin_unlock_irq(&tp->lock); +} + +static int rtl8139_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return RTL_NUM_STATS; + default: + return -EOPNOTSUPP; + } +} + +static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) +{ + struct rtl8139_private *tp = netdev_priv(dev); + + data[0] = tp->xstats.early_rx; + data[1] = tp->xstats.tx_buf_mapped; + data[2] = tp->xstats.tx_timeouts; + data[3] = tp->xstats.rx_lost_in_ring; +} + +static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) +{ + memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); +} + +static const struct ethtool_ops rtl8139_ethtool_ops = { + .get_drvinfo = rtl8139_get_drvinfo, + .get_settings = rtl8139_get_settings, + .set_settings = rtl8139_set_settings, + .get_regs_len = rtl8139_get_regs_len, + .get_regs = rtl8139_get_regs, + .nway_reset = rtl8139_nway_reset, + .get_link = rtl8139_get_link, + .get_msglevel = rtl8139_get_msglevel, + .set_msglevel = rtl8139_set_msglevel, + .get_wol = rtl8139_get_wol, + .set_wol = rtl8139_set_wol, + .get_strings = rtl8139_get_strings, + .get_sset_count = rtl8139_get_sset_count, + .get_ethtool_stats = rtl8139_get_ethtool_stats, +}; + +static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int rc; + + if (tp->ecdev || !netif_running(dev)) + return -EINVAL; + + spin_lock_irq(&tp->lock); + rc = generic_mii_ioctl(&tp->mii, if_mii(rq), cmd, NULL); + spin_unlock_irq(&tp->lock); + + return rc; +} + + +static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + unsigned long flags; + + if (tp->ecdev || netif_running(dev)) { + spin_lock_irqsave (&tp->lock, flags); + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + spin_unlock_irqrestore (&tp->lock, flags); + } + + return &dev->stats; +} + +/* Set or clear the multicast filter for this adaptor. + This routine is not state sensitive and need not be SMP locked. */ + +static void __set_rx_mode (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + u32 mc_filter[2]; /* Multicast hash filter */ + int i, rx_mode; + u32 tmp; + + pr_debug("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n", + dev->name, dev->flags, RTL_R32 (RxConfig)); + + /* Note: do not reorder, GCC is clever about common statements. */ + if (dev->flags & IFF_PROMISC) { + rx_mode = + AcceptBroadcast | AcceptMulticast | AcceptMyPhys | + AcceptAllPhys; + mc_filter[1] = mc_filter[0] = 0xffffffff; + } else if ((dev->mc_count > multicast_filter_limit) || + (dev->flags & IFF_ALLMULTI)) { + /* Too many to filter perfectly -- accept all multicasts. */ + rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; + mc_filter[1] = mc_filter[0] = 0xffffffff; + } else { + struct dev_mc_list *mclist; + rx_mode = AcceptBroadcast | AcceptMyPhys; + mc_filter[1] = mc_filter[0] = 0; + for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; + i++, mclist = mclist->next) { + int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; + + mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); + rx_mode |= AcceptMulticast; + } + } + + /* We can safely update without stopping the chip. */ + tmp = rtl8139_rx_config | rx_mode; + if (tp->rx_config != tmp) { + RTL_W32_F (RxConfig, tmp); + tp->rx_config = tmp; + } + RTL_W32_F (MAR0 + 0, mc_filter[0]); + RTL_W32_F (MAR0 + 4, mc_filter[1]); +} + +static void rtl8139_set_rx_mode (struct net_device *dev) +{ + unsigned long flags; + struct rtl8139_private *tp = netdev_priv(dev); + + spin_lock_irqsave (&tp->lock, flags); + __set_rx_mode(dev); + spin_unlock_irqrestore (&tp->lock, flags); +} + +#ifdef CONFIG_PM + +static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) +{ + struct net_device *dev = pci_get_drvdata (pdev); + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + unsigned long flags; + + pci_save_state (pdev); + + if (tp->ecdev || !netif_running (dev)) + return 0; + + netif_device_detach (dev); + + spin_lock_irqsave (&tp->lock, flags); + + /* Disable interrupts, stop Tx and Rx. */ + RTL_W16 (IntrMask, 0); + RTL_W8 (ChipCmd, 0); + + /* Update the error counts. */ + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + + spin_unlock_irqrestore (&tp->lock, flags); + + pci_set_power_state (pdev, PCI_D3hot); + + return 0; +} + + +static int rtl8139_resume (struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata (pdev); + struct rtl8139_private *tp = netdev_priv(dev); + + pci_restore_state (pdev); + if (tp->ecdev || !netif_running (dev)) + return 0; + pci_set_power_state (pdev, PCI_D0); + rtl8139_init_ring (dev); + rtl8139_hw_start (dev); + netif_device_attach (dev); + return 0; +} + +#endif /* CONFIG_PM */ + + +static struct pci_driver rtl8139_pci_driver = { + .name = DRV_NAME, + .id_table = rtl8139_pci_tbl, + .probe = rtl8139_init_one, + .remove = __devexit_p(rtl8139_remove_one), +#ifdef CONFIG_PM + .suspend = rtl8139_suspend, + .resume = rtl8139_resume, +#endif /* CONFIG_PM */ +}; + + +static int __init rtl8139_init_module (void) +{ + /* when we're a module, we always print a version message, + * even if no 8139 board is found. + */ +#ifdef MODULE + pr_info(RTL8139_DRIVER_NAME "\n"); +#endif + + return pci_register_driver(&rtl8139_pci_driver); +} + + +static void __exit rtl8139_cleanup_module (void) +{ + pci_unregister_driver (&rtl8139_pci_driver); +} + + +module_init(rtl8139_init_module); +module_exit(rtl8139_cleanup_module); diff -r e9f722488fcd -r be807e224b0e devices/8139too-2.6.33-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/8139too-2.6.33-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,2645 @@ +/* + + 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux. + + Maintained by Jeff Garzik + Copyright 2000-2002 Jeff Garzik + + Much code comes from Donald Becker's rtl8139.c driver, + versions 1.13 and older. This driver was originally based + on rtl8139.c version 1.07. Header of rtl8139.c version 1.13: + + ---------- + + Written 1997-2001 by Donald Becker. + This software may be used and distributed according to the + terms of the GNU General Public License (GPL), incorporated + herein by reference. Drivers based on or derived from this + code fall under the GPL and must retain the authorship, + copyright and license notice. This file is not a complete + program and may only be used when the entire operating + system is licensed under the GPL. + + This driver is for boards based on the RTL8129 and RTL8139 + PCI ethernet chips. + + The author may be reached as becker@scyld.com, or C/O Scyld + Computing Corporation 410 Severn Ave., Suite 210 Annapolis + MD 21403 + + Support and updates available at + http://www.scyld.com/network/rtl8139.html + + Twister-tuning table provided by Kinston + . + + ---------- + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + Contributors: + + Donald Becker - he wrote the original driver, kudos to him! + (but please don't e-mail him for support, this isn't his driver) + + Tigran Aivazian - bug fixes, skbuff free cleanup + + Martin Mares - suggestions for PCI cleanup + + David S. Miller - PCI DMA and softnet updates + + Ernst Gill - fixes ported from BSD driver + + Daniel Kobras - identified specific locations of + posted MMIO write bugginess + + Gerard Sharp - bug fix, testing and feedback + + David Ford - Rx ring wrap fix + + Dan DeMaggio - swapped RTL8139 cards with me, and allowed me + to find and fix a crucial bug on older chipsets. + + Donald Becker/Chris Butterworth/Marcus Westergren - + Noticed various Rx packet size-related buglets. + + Santiago Garcia Mantinan - testing and feedback + + Jens David - 2.2.x kernel backports + + Martin Dennett - incredibly helpful insight on undocumented + features of the 8139 chips + + Jean-Jacques Michel - bug fix + + Tobias Ringström - Rx interrupt status checking suggestion + + Andrew Morton - Clear blocked signals, avoid + buffer overrun setting current->comm. + + Kalle Olavi Niemitalo - Wake-on-LAN ioctls + + Robert Kuebel - Save kernel thread from dying on any signal. + + Submitting bug reports: + + "rtl8139-diag -mmmaaavvveefN" output + enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log + +*/ + +#define DRV_NAME "8139too" +#define DRV_VERSION "0.9.28" + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION +#define PFX DRV_NAME ": " + +/* Default Message level */ +#define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ + NETIF_MSG_PROBE | \ + NETIF_MSG_LINK) + + +/* define to 1, 2 or 3 to enable copious debugging info */ +#define RTL8139_DEBUG 0 + +/* define to 1 to disable lightweight runtime debugging checks */ +#undef RTL8139_NDEBUG + + +#ifdef RTL8139_NDEBUG +# define assert(expr) do {} while (0) +#else +# define assert(expr) \ + if(unlikely(!(expr))) { \ + pr_err("Assertion failed! %s,%s,%s,line=%d\n", \ + #expr, __FILE__, __func__, __LINE__); \ + } +#endif + + +/* A few user-configurable values. */ +/* media options */ +#define MAX_UNITS 8 +static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; +static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; + +/* Whether to use MMIO or PIO. Default to MMIO. */ +#ifdef CONFIG_8139TOO_PIO +static int use_io = 1; +#else +static int use_io = 0; +#endif + +/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). + The RTL chips use a 64 element hash table based on the Ethernet CRC. */ +static int multicast_filter_limit = 32; + +/* bitmapped message enable number */ +static int debug = -1; + +/* + * Receive ring size + * Warning: 64K ring has hardware issues and may lock up. + */ +#if defined(CONFIG_SH_DREAMCAST) +#define RX_BUF_IDX 0 /* 8K ring */ +#else +#define RX_BUF_IDX 2 /* 32K ring */ +#endif +#define RX_BUF_LEN (8192 << RX_BUF_IDX) +#define RX_BUF_PAD 16 +#define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ + +#if RX_BUF_LEN == 65536 +#define RX_BUF_TOT_LEN RX_BUF_LEN +#else +#define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) +#endif + +/* Number of Tx descriptor registers. */ +#define NUM_TX_DESC 4 + +/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ +#define MAX_ETH_FRAME_SIZE 1536 + +/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ +#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE +#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) + +/* PCI Tuning Parameters + Threshold is bytes transferred to chip before transmission starts. */ +#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ + +/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ +#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ +#define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ +#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ +#define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ + +/* Operational parameters that usually are not changed. */ +/* Time in jiffies before concluding the transmitter is hung. */ +#define TX_TIMEOUT (6*HZ) + + +enum { + HAS_MII_XCVR = 0x010000, + HAS_CHIP_XCVR = 0x020000, + HAS_LNK_CHNG = 0x040000, +}; + +#define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ +#define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ +#define RTL_MIN_IO_SIZE 0x80 +#define RTL8139B_IO_SIZE 256 + +#define RTL8129_CAPS HAS_MII_XCVR +#define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG) + +typedef enum { + RTL8139 = 0, + RTL8129, +} board_t; + + +/* indexed by board_t, above */ +static const struct { + const char *name; + u32 hw_flags; +} board_info[] __devinitdata = { + { "RealTek RTL8139", RTL8139_CAPS }, + { "RealTek RTL8129", RTL8129_CAPS }, +}; + + +static struct pci_device_id rtl8139_pci_tbl[] = { + {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, + +#ifdef CONFIG_SH_SECUREEDGE5410 + /* Bogus 8139 silicon reports 8129 without external PROM :-( */ + {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, +#endif +#ifdef CONFIG_8139TOO_8129 + {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, +#endif + + /* some crazy cards report invalid vendor ids like + * 0x0001 here. The other ids are valid and constant, + * so we simply don't match on the main vendor id. + */ + {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, + {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, + {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, + + {0,} +}; +MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); + +static struct { + const char str[ETH_GSTRING_LEN]; +} ethtool_stats_keys[] = { + { "early_rx" }, + { "tx_buf_mapped" }, + { "tx_timeouts" }, + { "rx_lost_in_ring" }, +}; + +/* The rest of these values should never change. */ + +/* Symbolic offsets to registers. */ +enum RTL8139_registers { + MAC0 = 0, /* Ethernet hardware address. */ + MAR0 = 8, /* Multicast filter. */ + TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ + TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ + RxBuf = 0x30, + ChipCmd = 0x37, + RxBufPtr = 0x38, + RxBufAddr = 0x3A, + IntrMask = 0x3C, + IntrStatus = 0x3E, + TxConfig = 0x40, + RxConfig = 0x44, + Timer = 0x48, /* A general-purpose counter. */ + RxMissed = 0x4C, /* 24 bits valid, write clears. */ + Cfg9346 = 0x50, + Config0 = 0x51, + Config1 = 0x52, + TimerInt = 0x54, + MediaStatus = 0x58, + Config3 = 0x59, + Config4 = 0x5A, /* absent on RTL-8139A */ + HltClk = 0x5B, + MultiIntr = 0x5C, + TxSummary = 0x60, + BasicModeCtrl = 0x62, + BasicModeStatus = 0x64, + NWayAdvert = 0x66, + NWayLPAR = 0x68, + NWayExpansion = 0x6A, + /* Undocumented registers, but required for proper operation. */ + FIFOTMS = 0x70, /* FIFO Control and test. */ + CSCR = 0x74, /* Chip Status and Configuration Register. */ + PARA78 = 0x78, + FlashReg = 0xD4, /* Communication with Flash ROM, four bytes. */ + PARA7c = 0x7c, /* Magic transceiver parameter register. */ + Config5 = 0xD8, /* absent on RTL-8139A */ +}; + +enum ClearBitMasks { + MultiIntrClear = 0xF000, + ChipCmdClear = 0xE2, + Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), +}; + +enum ChipCmdBits { + CmdReset = 0x10, + CmdRxEnb = 0x08, + CmdTxEnb = 0x04, + RxBufEmpty = 0x01, +}; + +/* Interrupt register bits, using my own meaningful names. */ +enum IntrStatusBits { + PCIErr = 0x8000, + PCSTimeout = 0x4000, + RxFIFOOver = 0x40, + RxUnderrun = 0x20, + RxOverflow = 0x10, + TxErr = 0x08, + TxOK = 0x04, + RxErr = 0x02, + RxOK = 0x01, + + RxAckBits = RxFIFOOver | RxOverflow | RxOK, +}; + +enum TxStatusBits { + TxHostOwns = 0x2000, + TxUnderrun = 0x4000, + TxStatOK = 0x8000, + TxOutOfWindow = 0x20000000, + TxAborted = 0x40000000, + TxCarrierLost = 0x80000000, +}; +enum RxStatusBits { + RxMulticast = 0x8000, + RxPhysical = 0x4000, + RxBroadcast = 0x2000, + RxBadSymbol = 0x0020, + RxRunt = 0x0010, + RxTooLong = 0x0008, + RxCRCErr = 0x0004, + RxBadAlign = 0x0002, + RxStatusOK = 0x0001, +}; + +/* Bits in RxConfig. */ +enum rx_mode_bits { + AcceptErr = 0x20, + AcceptRunt = 0x10, + AcceptBroadcast = 0x08, + AcceptMulticast = 0x04, + AcceptMyPhys = 0x02, + AcceptAllPhys = 0x01, +}; + +/* Bits in TxConfig. */ +enum tx_config_bits { + /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ + TxIFGShift = 24, + TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */ + TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */ + TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */ + TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */ + + TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ + TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */ + TxClearAbt = (1 << 0), /* Clear abort (WO) */ + TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */ + TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */ + + TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ +}; + +/* Bits in Config1 */ +enum Config1Bits { + Cfg1_PM_Enable = 0x01, + Cfg1_VPD_Enable = 0x02, + Cfg1_PIO = 0x04, + Cfg1_MMIO = 0x08, + LWAKE = 0x10, /* not on 8139, 8139A */ + Cfg1_Driver_Load = 0x20, + Cfg1_LED0 = 0x40, + Cfg1_LED1 = 0x80, + SLEEP = (1 << 1), /* only on 8139, 8139A */ + PWRDN = (1 << 0), /* only on 8139, 8139A */ +}; + +/* Bits in Config3 */ +enum Config3Bits { + Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */ + Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */ + Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */ + Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */ + Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */ + Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */ + Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */ + Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */ +}; + +/* Bits in Config4 */ +enum Config4Bits { + LWPTN = (1 << 2), /* not on 8139, 8139A */ +}; + +/* Bits in Config5 */ +enum Config5Bits { + Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */ + Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */ + Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */ + Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */ + Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */ + Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */ + Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */ +}; + +enum RxConfigBits { + /* rx fifo threshold */ + RxCfgFIFOShift = 13, + RxCfgFIFONone = (7 << RxCfgFIFOShift), + + /* Max DMA burst */ + RxCfgDMAShift = 8, + RxCfgDMAUnlimited = (7 << RxCfgDMAShift), + + /* rx ring buffer length */ + RxCfgRcv8K = 0, + RxCfgRcv16K = (1 << 11), + RxCfgRcv32K = (1 << 12), + RxCfgRcv64K = (1 << 11) | (1 << 12), + + /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ + RxNoWrap = (1 << 7), +}; + +/* Twister tuning parameters from RealTek. + Completely undocumented, but required to tune bad links on some boards. */ +enum CSCRBits { + CSCR_LinkOKBit = 0x0400, + CSCR_LinkChangeBit = 0x0800, + CSCR_LinkStatusBits = 0x0f000, + CSCR_LinkDownOffCmd = 0x003c0, + CSCR_LinkDownCmd = 0x0f3c0, +}; + +enum Cfg9346Bits { + Cfg9346_Lock = 0x00, + Cfg9346_Unlock = 0xC0, +}; + +typedef enum { + CH_8139 = 0, + CH_8139_K, + CH_8139A, + CH_8139A_G, + CH_8139B, + CH_8130, + CH_8139C, + CH_8100, + CH_8100B_8139D, + CH_8101, +} chip_t; + +enum chip_flags { + HasHltClk = (1 << 0), + HasLWake = (1 << 1), +}; + +#define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \ + (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22) +#define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1) + +/* directly indexed by chip_t, above */ +static const struct { + const char *name; + u32 version; /* from RTL8139C/RTL8139D docs */ + u32 flags; +} rtl_chip_info[] = { + { "RTL-8139", + HW_REVID(1, 0, 0, 0, 0, 0, 0), + HasHltClk, + }, + + { "RTL-8139 rev K", + HW_REVID(1, 1, 0, 0, 0, 0, 0), + HasHltClk, + }, + + { "RTL-8139A", + HW_REVID(1, 1, 1, 0, 0, 0, 0), + HasHltClk, /* XXX undocumented? */ + }, + + { "RTL-8139A rev G", + HW_REVID(1, 1, 1, 0, 0, 1, 0), + HasHltClk, /* XXX undocumented? */ + }, + + { "RTL-8139B", + HW_REVID(1, 1, 1, 1, 0, 0, 0), + HasLWake, + }, + + { "RTL-8130", + HW_REVID(1, 1, 1, 1, 1, 0, 0), + HasLWake, + }, + + { "RTL-8139C", + HW_REVID(1, 1, 1, 0, 1, 0, 0), + HasLWake, + }, + + { "RTL-8100", + HW_REVID(1, 1, 1, 1, 0, 1, 0), + HasLWake, + }, + + { "RTL-8100B/8139D", + HW_REVID(1, 1, 1, 0, 1, 0, 1), + HasHltClk /* XXX undocumented? */ + | HasLWake, + }, + + { "RTL-8101", + HW_REVID(1, 1, 1, 0, 1, 1, 1), + HasLWake, + }, +}; + +struct rtl_extra_stats { + unsigned long early_rx; + unsigned long tx_buf_mapped; + unsigned long tx_timeouts; + unsigned long rx_lost_in_ring; +}; + +struct rtl8139_private { + void __iomem *mmio_addr; + int drv_flags; + struct pci_dev *pci_dev; + u32 msg_enable; + struct napi_struct napi; + struct net_device *dev; + + unsigned char *rx_ring; + unsigned int cur_rx; /* RX buf index of next pkt */ + dma_addr_t rx_ring_dma; + + unsigned int tx_flag; + unsigned long cur_tx; + unsigned long dirty_tx; + unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ + unsigned char *tx_bufs; /* Tx bounce buffer region. */ + dma_addr_t tx_bufs_dma; + + signed char phys[4]; /* MII device addresses. */ + + /* Twister tune state. */ + char twistie, twist_row, twist_col; + + unsigned int watchdog_fired : 1; + unsigned int default_port : 4; /* Last dev->if_port value. */ + unsigned int have_thread : 1; + + spinlock_t lock; + spinlock_t rx_lock; + + chip_t chipset; + u32 rx_config; + struct rtl_extra_stats xstats; + + struct delayed_work thread; + + struct mii_if_info mii; + unsigned int regs_len; + unsigned long fifo_copy_timeout; +}; + +MODULE_AUTHOR ("Jeff Garzik "); +MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +module_param(use_io, int, 0); +MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO"); +module_param(multicast_filter_limit, int, 0); +module_param_array(media, int, NULL, 0); +module_param_array(full_duplex, int, NULL, 0); +module_param(debug, int, 0); +MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); +MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); +MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); +MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); + +static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); +static int rtl8139_open (struct net_device *dev); +static int mdio_read (struct net_device *dev, int phy_id, int location); +static void mdio_write (struct net_device *dev, int phy_id, int location, + int val); +static void rtl8139_start_thread(struct rtl8139_private *tp); +static void rtl8139_tx_timeout (struct net_device *dev); +static void rtl8139_init_ring (struct net_device *dev); +static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb, + struct net_device *dev); +#ifdef CONFIG_NET_POLL_CONTROLLER +static void rtl8139_poll_controller(struct net_device *dev); +#endif +static int rtl8139_set_mac_address(struct net_device *dev, void *p); +static int rtl8139_poll(struct napi_struct *napi, int budget); +static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance); +static int rtl8139_close (struct net_device *dev); +static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); +static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); +static void rtl8139_set_rx_mode (struct net_device *dev); +static void __set_rx_mode (struct net_device *dev); +static void rtl8139_hw_start (struct net_device *dev); +static void rtl8139_thread (struct work_struct *work); +static void rtl8139_tx_timeout_task(struct work_struct *work); +static const struct ethtool_ops rtl8139_ethtool_ops; + +/* write MMIO register, with flush */ +/* Flush avoids rtl8139 bug w/ posted MMIO writes */ +#define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) +#define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) +#define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0) + +/* write MMIO register */ +#define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) +#define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) +#define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) + +/* read MMIO register */ +#define RTL_R8(reg) ioread8 (ioaddr + (reg)) +#define RTL_R16(reg) ioread16 (ioaddr + (reg)) +#define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg))) + + +static const u16 rtl8139_intr_mask = + PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | + TxErr | TxOK | RxErr | RxOK; + +static const u16 rtl8139_norx_intr_mask = + PCIErr | PCSTimeout | RxUnderrun | + TxErr | TxOK | RxErr ; + +#if RX_BUF_IDX == 0 +static const unsigned int rtl8139_rx_config = + RxCfgRcv8K | RxNoWrap | + (RX_FIFO_THRESH << RxCfgFIFOShift) | + (RX_DMA_BURST << RxCfgDMAShift); +#elif RX_BUF_IDX == 1 +static const unsigned int rtl8139_rx_config = + RxCfgRcv16K | RxNoWrap | + (RX_FIFO_THRESH << RxCfgFIFOShift) | + (RX_DMA_BURST << RxCfgDMAShift); +#elif RX_BUF_IDX == 2 +static const unsigned int rtl8139_rx_config = + RxCfgRcv32K | RxNoWrap | + (RX_FIFO_THRESH << RxCfgFIFOShift) | + (RX_DMA_BURST << RxCfgDMAShift); +#elif RX_BUF_IDX == 3 +static const unsigned int rtl8139_rx_config = + RxCfgRcv64K | + (RX_FIFO_THRESH << RxCfgFIFOShift) | + (RX_DMA_BURST << RxCfgDMAShift); +#else +#error "Invalid configuration for 8139_RXBUF_IDX" +#endif + +static const unsigned int rtl8139_tx_config = + TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); + +static void __rtl8139_cleanup_dev (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + struct pci_dev *pdev; + + assert (dev != NULL); + assert (tp->pci_dev != NULL); + pdev = tp->pci_dev; + + if (tp->mmio_addr) + pci_iounmap (pdev, tp->mmio_addr); + + /* it's ok to call this even if we have no regions to free */ + pci_release_regions (pdev); + + free_netdev(dev); + pci_set_drvdata (pdev, NULL); +} + + +static void rtl8139_chip_reset (void __iomem *ioaddr) +{ + int i; + + /* Soft reset the chip. */ + RTL_W8 (ChipCmd, CmdReset); + + /* Check that the chip has finished the reset. */ + for (i = 1000; i > 0; i--) { + barrier(); + if ((RTL_R8 (ChipCmd) & CmdReset) == 0) + break; + udelay (10); + } +} + + +static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev) +{ + void __iomem *ioaddr; + struct net_device *dev; + struct rtl8139_private *tp; + u8 tmp8; + int rc, disable_dev_on_err = 0; + unsigned int i; + unsigned long pio_start, pio_end, pio_flags, pio_len; + unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; + u32 version; + + assert (pdev != NULL); + + /* dev and priv zeroed in alloc_etherdev */ + dev = alloc_etherdev (sizeof (*tp)); + if (dev == NULL) { + dev_err(&pdev->dev, "Unable to alloc new net device\n"); + return ERR_PTR(-ENOMEM); + } + SET_NETDEV_DEV(dev, &pdev->dev); + + tp = netdev_priv(dev); + tp->pci_dev = pdev; + + /* enable device (incl. PCI PM wakeup and hotplug setup) */ + rc = pci_enable_device (pdev); + if (rc) + goto err_out; + + pio_start = pci_resource_start (pdev, 0); + pio_end = pci_resource_end (pdev, 0); + pio_flags = pci_resource_flags (pdev, 0); + pio_len = pci_resource_len (pdev, 0); + + mmio_start = pci_resource_start (pdev, 1); + mmio_end = pci_resource_end (pdev, 1); + mmio_flags = pci_resource_flags (pdev, 1); + mmio_len = pci_resource_len (pdev, 1); + + /* set this immediately, we need to know before + * we talk to the chip directly */ + pr_debug("PIO region size == 0x%02lX\n", pio_len); + pr_debug("MMIO region size == 0x%02lX\n", mmio_len); + +retry: + if (use_io) { + /* make sure PCI base addr 0 is PIO */ + if (!(pio_flags & IORESOURCE_IO)) { + dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n"); + rc = -ENODEV; + goto err_out; + } + /* check for weird/broken PCI region reporting */ + if (pio_len < RTL_MIN_IO_SIZE) { + dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n"); + rc = -ENODEV; + goto err_out; + } + } else { + /* make sure PCI base addr 1 is MMIO */ + if (!(mmio_flags & IORESOURCE_MEM)) { + dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); + rc = -ENODEV; + goto err_out; + } + if (mmio_len < RTL_MIN_IO_SIZE) { + dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n"); + rc = -ENODEV; + goto err_out; + } + } + + rc = pci_request_regions (pdev, DRV_NAME); + if (rc) + goto err_out; + disable_dev_on_err = 1; + + /* enable PCI bus-mastering */ + pci_set_master (pdev); + + if (use_io) { + ioaddr = pci_iomap(pdev, 0, 0); + if (!ioaddr) { + dev_err(&pdev->dev, "cannot map PIO, aborting\n"); + rc = -EIO; + goto err_out; + } + dev->base_addr = pio_start; + tp->regs_len = pio_len; + } else { + /* ioremap MMIO region */ + ioaddr = pci_iomap(pdev, 1, 0); + if (ioaddr == NULL) { + dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n"); + pci_release_regions(pdev); + use_io = 1; + goto retry; + } + dev->base_addr = (long) ioaddr; + tp->regs_len = mmio_len; + } + tp->mmio_addr = ioaddr; + + /* Bring old chips out of low-power mode. */ + RTL_W8 (HltClk, 'R'); + + /* check for missing/broken hardware */ + if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { + dev_err(&pdev->dev, "Chip not responding, ignoring board\n"); + rc = -EIO; + goto err_out; + } + + /* identify chip attached to board */ + version = RTL_R32 (TxConfig) & HW_REVID_MASK; + for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) + if (version == rtl_chip_info[i].version) { + tp->chipset = i; + goto match; + } + + /* if unknown chip, assume array element #0, original RTL-8139 in this case */ + dev_dbg(&pdev->dev, "unknown chip version, assuming RTL-8139\n"); + dev_dbg(&pdev->dev, "TxConfig = 0x%lx\n", RTL_R32 (TxConfig)); + tp->chipset = 0; + +match: + pr_debug("chipset id (%d) == index %d, '%s'\n", + version, i, rtl_chip_info[i].name); + + if (tp->chipset >= CH_8139B) { + u8 new_tmp8 = tmp8 = RTL_R8 (Config1); + pr_debug("PCI PM wakeup\n"); + if ((rtl_chip_info[tp->chipset].flags & HasLWake) && + (tmp8 & LWAKE)) + new_tmp8 &= ~LWAKE; + new_tmp8 |= Cfg1_PM_Enable; + if (new_tmp8 != tmp8) { + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W8 (Config1, tmp8); + RTL_W8 (Cfg9346, Cfg9346_Lock); + } + if (rtl_chip_info[tp->chipset].flags & HasLWake) { + tmp8 = RTL_R8 (Config4); + if (tmp8 & LWPTN) { + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W8 (Config4, tmp8 & ~LWPTN); + RTL_W8 (Cfg9346, Cfg9346_Lock); + } + } + } else { + pr_debug("Old chip wakeup\n"); + tmp8 = RTL_R8 (Config1); + tmp8 &= ~(SLEEP | PWRDN); + RTL_W8 (Config1, tmp8); + } + + rtl8139_chip_reset (ioaddr); + + return dev; + +err_out: + __rtl8139_cleanup_dev (dev); + if (disable_dev_on_err) + pci_disable_device (pdev); + return ERR_PTR(rc); +} + +static const struct net_device_ops rtl8139_netdev_ops = { + .ndo_open = rtl8139_open, + .ndo_stop = rtl8139_close, + .ndo_get_stats = rtl8139_get_stats, + .ndo_change_mtu = eth_change_mtu, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = rtl8139_set_mac_address, + .ndo_start_xmit = rtl8139_start_xmit, + .ndo_set_multicast_list = rtl8139_set_rx_mode, + .ndo_do_ioctl = netdev_ioctl, + .ndo_tx_timeout = rtl8139_tx_timeout, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = rtl8139_poll_controller, +#endif +}; + +static int __devinit rtl8139_init_one (struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *dev = NULL; + struct rtl8139_private *tp; + int i, addr_len, option; + void __iomem *ioaddr; + static int board_idx = -1; + + assert (pdev != NULL); + assert (ent != NULL); + + board_idx++; + + /* when we're built into the kernel, the driver version message + * is only printed if at least one 8139 board has been found + */ +#ifndef MODULE + { + static int printed_version; + if (!printed_version++) + pr_info(RTL8139_DRIVER_NAME "\n"); + } +#endif + + if (pdev->vendor == PCI_VENDOR_ID_REALTEK && + pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) { + dev_info(&pdev->dev, + "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip, use 8139cp\n", + pdev->vendor, pdev->device, pdev->revision); + return -ENODEV; + } + + if (pdev->vendor == PCI_VENDOR_ID_REALTEK && + pdev->device == PCI_DEVICE_ID_REALTEK_8139 && + pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS && + pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) { + pr_info("8139too: OQO Model 2 detected. Forcing PIO\n"); + use_io = 1; + } + + dev = rtl8139_init_board (pdev); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + assert (dev != NULL); + tp = netdev_priv(dev); + tp->dev = dev; + + ioaddr = tp->mmio_addr; + assert (ioaddr != NULL); + + addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; + for (i = 0; i < 3; i++) + ((__le16 *) (dev->dev_addr))[i] = + cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len)); + memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); + + /* The Rtl8139-specific entries in the device structure. */ + dev->netdev_ops = &rtl8139_netdev_ops; + dev->ethtool_ops = &rtl8139_ethtool_ops; + dev->watchdog_timeo = TX_TIMEOUT; + netif_napi_add(dev, &tp->napi, rtl8139_poll, 64); + + /* note: the hardware is not capable of sg/csum/highdma, however + * through the use of skb_copy_and_csum_dev we enable these + * features + */ + dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; + + dev->irq = pdev->irq; + + /* tp zeroed and aligned in alloc_etherdev */ + tp = netdev_priv(dev); + + /* note: tp->chipset set in rtl8139_init_board */ + tp->drv_flags = board_info[ent->driver_data].hw_flags; + tp->mmio_addr = ioaddr; + tp->msg_enable = + (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); + spin_lock_init (&tp->lock); + spin_lock_init (&tp->rx_lock); + INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); + tp->mii.dev = dev; + tp->mii.mdio_read = mdio_read; + tp->mii.mdio_write = mdio_write; + tp->mii.phy_id_mask = 0x3f; + tp->mii.reg_num_mask = 0x1f; + + /* dev is fully set up and ready to use now */ + pr_debug("about to register device named %s (%p)...\n", dev->name, dev); + i = register_netdev (dev); + if (i) goto err_out; + + pci_set_drvdata (pdev, dev); + + pr_info("%s: %s at 0x%lx, %pM, IRQ %d\n", + dev->name, + board_info[ent->driver_data].name, + dev->base_addr, + dev->dev_addr, + dev->irq); + + pr_debug("%s: Identified 8139 chip type '%s'\n", + dev->name, rtl_chip_info[tp->chipset].name); + + /* Find the connected MII xcvrs. + Doing this in open() would allow detecting external xcvrs later, but + takes too much time. */ +#ifdef CONFIG_8139TOO_8129 + if (tp->drv_flags & HAS_MII_XCVR) { + int phy, phy_idx = 0; + for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { + int mii_status = mdio_read(dev, phy, 1); + if (mii_status != 0xffff && mii_status != 0x0000) { + u16 advertising = mdio_read(dev, phy, 4); + tp->phys[phy_idx++] = phy; + pr_info("%s: MII transceiver %d status 0x%4.4x advertising %4.4x.\n", + dev->name, phy, mii_status, advertising); + } + } + if (phy_idx == 0) { + pr_info("%s: No MII transceivers found! Assuming SYM transceiver.\n", + dev->name); + tp->phys[0] = 32; + } + } else +#endif + tp->phys[0] = 32; + tp->mii.phy_id = tp->phys[0]; + + /* The lower four bits are the media type. */ + option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; + if (option > 0) { + tp->mii.full_duplex = (option & 0x210) ? 1 : 0; + tp->default_port = option & 0xFF; + if (tp->default_port) + tp->mii.force_media = 1; + } + if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) + tp->mii.full_duplex = full_duplex[board_idx]; + if (tp->mii.full_duplex) { + pr_info("%s: Media type forced to Full Duplex.\n", dev->name); + /* Changing the MII-advertised media because might prevent + re-connection. */ + tp->mii.force_media = 1; + } + if (tp->default_port) { + pr_info(" Forcing %dMbps %s-duplex operation.\n", + (option & 0x20 ? 100 : 10), + (option & 0x10 ? "full" : "half")); + mdio_write(dev, tp->phys[0], 0, + ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ + ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ + } + + /* Put the chip into low-power mode. */ + if (rtl_chip_info[tp->chipset].flags & HasHltClk) + RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ + + return 0; + +err_out: + __rtl8139_cleanup_dev (dev); + pci_disable_device (pdev); + return i; +} + + +static void __devexit rtl8139_remove_one (struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata (pdev); + + assert (dev != NULL); + + flush_scheduled_work(); + + unregister_netdev (dev); + + __rtl8139_cleanup_dev (dev); + pci_disable_device (pdev); +} + + +/* Serial EEPROM section. */ + +/* EEPROM_Ctrl bits. */ +#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ +#define EE_CS 0x08 /* EEPROM chip select. */ +#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ +#define EE_WRITE_0 0x00 +#define EE_WRITE_1 0x02 +#define EE_DATA_READ 0x01 /* EEPROM chip data out. */ +#define EE_ENB (0x80 | EE_CS) + +/* Delay between EEPROM clock transitions. + No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. + */ + +#define eeprom_delay() (void)RTL_R32(Cfg9346) + +/* The EEPROM commands include the alway-set leading bit. */ +#define EE_WRITE_CMD (5) +#define EE_READ_CMD (6) +#define EE_ERASE_CMD (7) + +static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len) +{ + int i; + unsigned retval = 0; + int read_cmd = location | (EE_READ_CMD << addr_len); + + RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); + RTL_W8 (Cfg9346, EE_ENB); + eeprom_delay (); + + /* Shift the read command bits out. */ + for (i = 4 + addr_len; i >= 0; i--) { + int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; + RTL_W8 (Cfg9346, EE_ENB | dataval); + eeprom_delay (); + RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); + eeprom_delay (); + } + RTL_W8 (Cfg9346, EE_ENB); + eeprom_delay (); + + for (i = 16; i > 0; i--) { + RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); + eeprom_delay (); + retval = + (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : + 0); + RTL_W8 (Cfg9346, EE_ENB); + eeprom_delay (); + } + + /* Terminate the EEPROM access. */ + RTL_W8 (Cfg9346, ~EE_CS); + eeprom_delay (); + + return retval; +} + +/* MII serial management: mostly bogus for now. */ +/* Read and write the MII management registers using software-generated + serial MDIO protocol. + The maximum data clock rate is 2.5 Mhz. The minimum timing is usually + met by back-to-back PCI I/O cycles, but we insert a delay to avoid + "overclocking" issues. */ +#define MDIO_DIR 0x80 +#define MDIO_DATA_OUT 0x04 +#define MDIO_DATA_IN 0x02 +#define MDIO_CLK 0x01 +#define MDIO_WRITE0 (MDIO_DIR) +#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) + +#define mdio_delay() RTL_R8(Config4) + + +static const char mii_2_8139_map[8] = { + BasicModeCtrl, + BasicModeStatus, + 0, + 0, + NWayAdvert, + NWayLPAR, + NWayExpansion, + 0 +}; + + +#ifdef CONFIG_8139TOO_8129 +/* Syncronize the MII management interface by shifting 32 one bits out. */ +static void mdio_sync (void __iomem *ioaddr) +{ + int i; + + for (i = 32; i >= 0; i--) { + RTL_W8 (Config4, MDIO_WRITE1); + mdio_delay (); + RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); + mdio_delay (); + } +} +#endif + +static int mdio_read (struct net_device *dev, int phy_id, int location) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int retval = 0; +#ifdef CONFIG_8139TOO_8129 + void __iomem *ioaddr = tp->mmio_addr; + int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; + int i; +#endif + + if (phy_id > 31) { /* Really a 8139. Use internal registers. */ + void __iomem *ioaddr = tp->mmio_addr; + return location < 8 && mii_2_8139_map[location] ? + RTL_R16 (mii_2_8139_map[location]) : 0; + } + +#ifdef CONFIG_8139TOO_8129 + mdio_sync (ioaddr); + /* Shift the read command bits out. */ + for (i = 15; i >= 0; i--) { + int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; + + RTL_W8 (Config4, MDIO_DIR | dataval); + mdio_delay (); + RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); + mdio_delay (); + } + + /* Read the two transition, 16 data, and wire-idle bits. */ + for (i = 19; i > 0; i--) { + RTL_W8 (Config4, 0); + mdio_delay (); + retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); + RTL_W8 (Config4, MDIO_CLK); + mdio_delay (); + } +#endif + + return (retval >> 1) & 0xffff; +} + + +static void mdio_write (struct net_device *dev, int phy_id, int location, + int value) +{ + struct rtl8139_private *tp = netdev_priv(dev); +#ifdef CONFIG_8139TOO_8129 + void __iomem *ioaddr = tp->mmio_addr; + int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; + int i; +#endif + + if (phy_id > 31) { /* Really a 8139. Use internal registers. */ + void __iomem *ioaddr = tp->mmio_addr; + if (location == 0) { + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W16 (BasicModeCtrl, value); + RTL_W8 (Cfg9346, Cfg9346_Lock); + } else if (location < 8 && mii_2_8139_map[location]) + RTL_W16 (mii_2_8139_map[location], value); + return; + } + +#ifdef CONFIG_8139TOO_8129 + mdio_sync (ioaddr); + + /* Shift the command bits out. */ + for (i = 31; i >= 0; i--) { + int dataval = + (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; + RTL_W8 (Config4, dataval); + mdio_delay (); + RTL_W8 (Config4, dataval | MDIO_CLK); + mdio_delay (); + } + /* Clear out extra bits. */ + for (i = 2; i > 0; i--) { + RTL_W8 (Config4, 0); + mdio_delay (); + RTL_W8 (Config4, MDIO_CLK); + mdio_delay (); + } +#endif +} + + +static int rtl8139_open (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int retval; + void __iomem *ioaddr = tp->mmio_addr; + + retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev); + if (retval) + return retval; + + tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, + &tp->tx_bufs_dma, GFP_KERNEL); + tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, + &tp->rx_ring_dma, GFP_KERNEL); + if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { + free_irq(dev->irq, dev); + + if (tp->tx_bufs) + dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, + tp->tx_bufs, tp->tx_bufs_dma); + if (tp->rx_ring) + dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, + tp->rx_ring, tp->rx_ring_dma); + + return -ENOMEM; + + } + + napi_enable(&tp->napi); + + tp->mii.full_duplex = tp->mii.force_media; + tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000; + + rtl8139_init_ring (dev); + rtl8139_hw_start (dev); + netif_start_queue (dev); + + if (netif_msg_ifup(tp)) + pr_debug("%s: rtl8139_open() ioaddr %#llx IRQ %d" + " GP Pins %2.2x %s-duplex.\n", dev->name, + (unsigned long long)pci_resource_start (tp->pci_dev, 1), + dev->irq, RTL_R8 (MediaStatus), + tp->mii.full_duplex ? "full" : "half"); + + rtl8139_start_thread(tp); + + return 0; +} + + +static void rtl_check_media (struct net_device *dev, unsigned int init_media) +{ + struct rtl8139_private *tp = netdev_priv(dev); + + if (tp->phys[0] >= 0) { + mii_check_media(&tp->mii, netif_msg_link(tp), init_media); + } +} + +/* Start the hardware at open or resume. */ +static void rtl8139_hw_start (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + u32 i; + u8 tmp; + + /* Bring old chips out of low-power mode. */ + if (rtl_chip_info[tp->chipset].flags & HasHltClk) + RTL_W8 (HltClk, 'R'); + + rtl8139_chip_reset (ioaddr); + + /* unlock Config[01234] and BMCR register writes */ + RTL_W8_F (Cfg9346, Cfg9346_Unlock); + /* Restore our idea of the MAC address. */ + RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); + RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4))); + + tp->cur_rx = 0; + + /* init Rx ring buffer DMA address */ + RTL_W32_F (RxBuf, tp->rx_ring_dma); + + /* Must enable Tx/Rx before setting transfer thresholds! */ + RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); + + tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; + RTL_W32 (RxConfig, tp->rx_config); + RTL_W32 (TxConfig, rtl8139_tx_config); + + rtl_check_media (dev, 1); + + if (tp->chipset >= CH_8139B) { + /* Disable magic packet scanning, which is enabled + * when PM is enabled in Config1. It can be reenabled + * via ETHTOOL_SWOL if desired. */ + RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); + } + + pr_debug("init buffer addresses\n"); + + /* Lock Config[01234] and BMCR register writes */ + RTL_W8 (Cfg9346, Cfg9346_Lock); + + /* init Tx buffer DMA addresses */ + for (i = 0; i < NUM_TX_DESC; i++) + RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); + + RTL_W32 (RxMissed, 0); + + rtl8139_set_rx_mode (dev); + + /* no early-rx interrupts */ + RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); + + /* make sure RxTx has started */ + tmp = RTL_R8 (ChipCmd); + if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) + RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); + + /* Enable all known interrupts by setting the interrupt mask. */ + RTL_W16 (IntrMask, rtl8139_intr_mask); +} + + +/* Initialize the Rx and Tx rings, along with various 'dev' bits. */ +static void rtl8139_init_ring (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int i; + + tp->cur_rx = 0; + tp->cur_tx = 0; + tp->dirty_tx = 0; + + for (i = 0; i < NUM_TX_DESC; i++) + tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; +} + + +/* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ +static int next_tick = 3 * HZ; + +#ifndef CONFIG_8139TOO_TUNE_TWISTER +static inline void rtl8139_tune_twister (struct net_device *dev, + struct rtl8139_private *tp) {} +#else +enum TwisterParamVals { + PARA78_default = 0x78fa8388, + PARA7c_default = 0xcb38de43, /* param[0][3] */ + PARA7c_xxx = 0xcb38de43, +}; + +static const unsigned long param[4][4] = { + {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, + {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, + {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, + {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} +}; + +static void rtl8139_tune_twister (struct net_device *dev, + struct rtl8139_private *tp) +{ + int linkcase; + void __iomem *ioaddr = tp->mmio_addr; + + /* This is a complicated state machine to configure the "twister" for + impedance/echos based on the cable length. + All of this is magic and undocumented. + */ + switch (tp->twistie) { + case 1: + if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { + /* We have link beat, let us tune the twister. */ + RTL_W16 (CSCR, CSCR_LinkDownOffCmd); + tp->twistie = 2; /* Change to state 2. */ + next_tick = HZ / 10; + } else { + /* Just put in some reasonable defaults for when beat returns. */ + RTL_W16 (CSCR, CSCR_LinkDownCmd); + RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ + RTL_W32 (PARA78, PARA78_default); + RTL_W32 (PARA7c, PARA7c_default); + tp->twistie = 0; /* Bail from future actions. */ + } + break; + case 2: + /* Read how long it took to hear the echo. */ + linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; + if (linkcase == 0x7000) + tp->twist_row = 3; + else if (linkcase == 0x3000) + tp->twist_row = 2; + else if (linkcase == 0x1000) + tp->twist_row = 1; + else + tp->twist_row = 0; + tp->twist_col = 0; + tp->twistie = 3; /* Change to state 2. */ + next_tick = HZ / 10; + break; + case 3: + /* Put out four tuning parameters, one per 100msec. */ + if (tp->twist_col == 0) + RTL_W16 (FIFOTMS, 0); + RTL_W32 (PARA7c, param[(int) tp->twist_row] + [(int) tp->twist_col]); + next_tick = HZ / 10; + if (++tp->twist_col >= 4) { + /* For short cables we are done. + For long cables (row == 3) check for mistune. */ + tp->twistie = + (tp->twist_row == 3) ? 4 : 0; + } + break; + case 4: + /* Special case for long cables: check for mistune. */ + if ((RTL_R16 (CSCR) & + CSCR_LinkStatusBits) == 0x7000) { + tp->twistie = 0; + break; + } else { + RTL_W32 (PARA7c, 0xfb38de03); + tp->twistie = 5; + next_tick = HZ / 10; + } + break; + case 5: + /* Retune for shorter cable (column 2). */ + RTL_W32 (FIFOTMS, 0x20); + RTL_W32 (PARA78, PARA78_default); + RTL_W32 (PARA7c, PARA7c_default); + RTL_W32 (FIFOTMS, 0x00); + tp->twist_row = 2; + tp->twist_col = 0; + tp->twistie = 3; + next_tick = HZ / 10; + break; + + default: + /* do nothing */ + break; + } +} +#endif /* CONFIG_8139TOO_TUNE_TWISTER */ + +static inline void rtl8139_thread_iter (struct net_device *dev, + struct rtl8139_private *tp, + void __iomem *ioaddr) +{ + int mii_lpa; + + mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); + + if (!tp->mii.force_media && mii_lpa != 0xffff) { + int duplex = ((mii_lpa & LPA_100FULL) || + (mii_lpa & 0x01C0) == 0x0040); + if (tp->mii.full_duplex != duplex) { + tp->mii.full_duplex = duplex; + + if (mii_lpa) { + pr_info("%s: Setting %s-duplex based on MII #%d link" + " partner ability of %4.4x.\n", + dev->name, + tp->mii.full_duplex ? "full" : "half", + tp->phys[0], mii_lpa); + } else { + pr_info("%s: media is unconnected, link down, or incompatible connection\n", + dev->name); + } +#if 0 + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); + RTL_W8 (Cfg9346, Cfg9346_Lock); +#endif + } + } + + next_tick = HZ * 60; + + rtl8139_tune_twister (dev, tp); + + pr_debug("%s: Media selection tick, Link partner %4.4x.\n", + dev->name, RTL_R16 (NWayLPAR)); + pr_debug("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n", + dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus)); + pr_debug("%s: Chip config %2.2x %2.2x.\n", + dev->name, RTL_R8 (Config0), + RTL_R8 (Config1)); +} + +static void rtl8139_thread (struct work_struct *work) +{ + struct rtl8139_private *tp = + container_of(work, struct rtl8139_private, thread.work); + struct net_device *dev = tp->mii.dev; + unsigned long thr_delay = next_tick; + + rtnl_lock(); + + if (!netif_running(dev)) + goto out_unlock; + + if (tp->watchdog_fired) { + tp->watchdog_fired = 0; + rtl8139_tx_timeout_task(work); + } else + rtl8139_thread_iter(dev, tp, tp->mmio_addr); + + if (tp->have_thread) + schedule_delayed_work(&tp->thread, thr_delay); +out_unlock: + rtnl_unlock (); +} + +static void rtl8139_start_thread(struct rtl8139_private *tp) +{ + tp->twistie = 0; + if (tp->chipset == CH_8139_K) + tp->twistie = 1; + else if (tp->drv_flags & HAS_LNK_CHNG) + return; + + tp->have_thread = 1; + tp->watchdog_fired = 0; + + schedule_delayed_work(&tp->thread, next_tick); +} + +static inline void rtl8139_tx_clear (struct rtl8139_private *tp) +{ + tp->cur_tx = 0; + tp->dirty_tx = 0; + + /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ +} + +static void rtl8139_tx_timeout_task (struct work_struct *work) +{ + struct rtl8139_private *tp = + container_of(work, struct rtl8139_private, thread.work); + struct net_device *dev = tp->mii.dev; + void __iomem *ioaddr = tp->mmio_addr; + int i; + u8 tmp8; + + pr_debug("%s: Transmit timeout, status %2.2x %4.4x %4.4x media %2.2x.\n", + dev->name, RTL_R8 (ChipCmd), + RTL_R16(IntrStatus), RTL_R16(IntrMask), RTL_R8(MediaStatus)); + /* Emit info to figure out what went wrong. */ + pr_debug("%s: Tx queue start entry %ld dirty entry %ld.\n", + dev->name, tp->cur_tx, tp->dirty_tx); + for (i = 0; i < NUM_TX_DESC; i++) + pr_debug("%s: Tx descriptor %d is %8.8lx.%s\n", + dev->name, i, RTL_R32 (TxStatus0 + (i * 4)), + i == tp->dirty_tx % NUM_TX_DESC ? + " (queue head)" : ""); + + tp->xstats.tx_timeouts++; + + /* disable Tx ASAP, if not already */ + tmp8 = RTL_R8 (ChipCmd); + if (tmp8 & CmdTxEnb) + RTL_W8 (ChipCmd, CmdRxEnb); + + spin_lock_bh(&tp->rx_lock); + /* Disable interrupts by clearing the interrupt mask. */ + RTL_W16 (IntrMask, 0x0000); + + /* Stop a shared interrupt from scavenging while we are. */ + spin_lock_irq(&tp->lock); + rtl8139_tx_clear (tp); + spin_unlock_irq(&tp->lock); + + /* ...and finally, reset everything */ + if (netif_running(dev)) { + rtl8139_hw_start (dev); + netif_wake_queue (dev); + } + spin_unlock_bh(&tp->rx_lock); +} + +static void rtl8139_tx_timeout (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + + tp->watchdog_fired = 1; + if (!tp->have_thread) { + INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); + schedule_delayed_work(&tp->thread, next_tick); + } +} + +static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb, + struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + unsigned int entry; + unsigned int len = skb->len; + unsigned long flags; + + /* Calculate the next Tx descriptor entry. */ + entry = tp->cur_tx % NUM_TX_DESC; + + /* Note: the chip doesn't have auto-pad! */ + if (likely(len < TX_BUF_SIZE)) { + if (len < ETH_ZLEN) + memset(tp->tx_buf[entry], 0, ETH_ZLEN); + skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); + dev_kfree_skb(skb); + } else { + dev_kfree_skb(skb); + dev->stats.tx_dropped++; + return NETDEV_TX_OK; + } + + spin_lock_irqsave(&tp->lock, flags); + /* + * Writing to TxStatus triggers a DMA transfer of the data + * copied to tp->tx_buf[entry] above. Use a memory barrier + * to make sure that the device sees the updated data. + */ + wmb(); + RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), + tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); + + dev->trans_start = jiffies; + + tp->cur_tx++; + + if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) + netif_stop_queue (dev); + spin_unlock_irqrestore(&tp->lock, flags); + + if (netif_msg_tx_queued(tp)) + pr_debug("%s: Queued Tx packet size %u to slot %d.\n", + dev->name, len, entry); + + return NETDEV_TX_OK; +} + + +static void rtl8139_tx_interrupt (struct net_device *dev, + struct rtl8139_private *tp, + void __iomem *ioaddr) +{ + unsigned long dirty_tx, tx_left; + + assert (dev != NULL); + assert (ioaddr != NULL); + + dirty_tx = tp->dirty_tx; + tx_left = tp->cur_tx - dirty_tx; + while (tx_left > 0) { + int entry = dirty_tx % NUM_TX_DESC; + int txstatus; + + txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); + + if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) + break; /* It still hasn't been Txed */ + + /* Note: TxCarrierLost is always asserted at 100mbps. */ + if (txstatus & (TxOutOfWindow | TxAborted)) { + /* There was an major error, log it. */ + if (netif_msg_tx_err(tp)) + pr_debug("%s: Transmit error, Tx status %8.8x.\n", + dev->name, txstatus); + dev->stats.tx_errors++; + if (txstatus & TxAborted) { + dev->stats.tx_aborted_errors++; + RTL_W32 (TxConfig, TxClearAbt); + RTL_W16 (IntrStatus, TxErr); + wmb(); + } + if (txstatus & TxCarrierLost) + dev->stats.tx_carrier_errors++; + if (txstatus & TxOutOfWindow) + dev->stats.tx_window_errors++; + } else { + if (txstatus & TxUnderrun) { + /* Add 64 to the Tx FIFO threshold. */ + if (tp->tx_flag < 0x00300000) + tp->tx_flag += 0x00020000; + dev->stats.tx_fifo_errors++; + } + dev->stats.collisions += (txstatus >> 24) & 15; + dev->stats.tx_bytes += txstatus & 0x7ff; + dev->stats.tx_packets++; + } + + dirty_tx++; + tx_left--; + } + +#ifndef RTL8139_NDEBUG + if (tp->cur_tx - dirty_tx > NUM_TX_DESC) { + pr_err("%s: Out-of-sync dirty pointer, %ld vs. %ld.\n", + dev->name, dirty_tx, tp->cur_tx); + dirty_tx += NUM_TX_DESC; + } +#endif /* RTL8139_NDEBUG */ + + /* only wake the queue if we did work, and the queue is stopped */ + if (tp->dirty_tx != dirty_tx) { + tp->dirty_tx = dirty_tx; + mb(); + netif_wake_queue (dev); + } +} + + +/* TODO: clean this up! Rx reset need not be this intensive */ +static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, + struct rtl8139_private *tp, void __iomem *ioaddr) +{ + u8 tmp8; +#ifdef CONFIG_8139_OLD_RX_RESET + int tmp_work; +#endif + + if (netif_msg_rx_err (tp)) + pr_debug("%s: Ethernet frame had errors, status %8.8x.\n", + dev->name, rx_status); + dev->stats.rx_errors++; + if (!(rx_status & RxStatusOK)) { + if (rx_status & RxTooLong) { + pr_debug("%s: Oversized Ethernet frame, status %4.4x!\n", + dev->name, rx_status); + /* A.C.: The chip hangs here. */ + } + if (rx_status & (RxBadSymbol | RxBadAlign)) + dev->stats.rx_frame_errors++; + if (rx_status & (RxRunt | RxTooLong)) + dev->stats.rx_length_errors++; + if (rx_status & RxCRCErr) + dev->stats.rx_crc_errors++; + } else { + tp->xstats.rx_lost_in_ring++; + } + +#ifndef CONFIG_8139_OLD_RX_RESET + tmp8 = RTL_R8 (ChipCmd); + RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); + RTL_W8 (ChipCmd, tmp8); + RTL_W32 (RxConfig, tp->rx_config); + tp->cur_rx = 0; +#else + /* Reset the receiver, based on RealTek recommendation. (Bug?) */ + + /* disable receive */ + RTL_W8_F (ChipCmd, CmdTxEnb); + tmp_work = 200; + while (--tmp_work > 0) { + udelay(1); + tmp8 = RTL_R8 (ChipCmd); + if (!(tmp8 & CmdRxEnb)) + break; + } + if (tmp_work <= 0) + pr_warning(PFX "rx stop wait too long\n"); + /* restart receive */ + tmp_work = 200; + while (--tmp_work > 0) { + RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); + udelay(1); + tmp8 = RTL_R8 (ChipCmd); + if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) + break; + } + if (tmp_work <= 0) + pr_warning(PFX "tx/rx enable wait too long\n"); + + /* and reinitialize all rx related registers */ + RTL_W8_F (Cfg9346, Cfg9346_Unlock); + /* Must enable Tx/Rx before setting transfer thresholds! */ + RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); + + tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; + RTL_W32 (RxConfig, tp->rx_config); + tp->cur_rx = 0; + + pr_debug("init buffer addresses\n"); + + /* Lock Config[01234] and BMCR register writes */ + RTL_W8 (Cfg9346, Cfg9346_Lock); + + /* init Rx ring buffer DMA address */ + RTL_W32_F (RxBuf, tp->rx_ring_dma); + + /* A.C.: Reset the multicast list. */ + __set_rx_mode (dev); +#endif +} + +#if RX_BUF_IDX == 3 +static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring, + u32 offset, unsigned int size) +{ + u32 left = RX_BUF_LEN - offset; + + if (size > left) { + skb_copy_to_linear_data(skb, ring + offset, left); + skb_copy_to_linear_data_offset(skb, left, ring, size - left); + } else + skb_copy_to_linear_data(skb, ring + offset, size); +} +#endif + +static void rtl8139_isr_ack(struct rtl8139_private *tp) +{ + void __iomem *ioaddr = tp->mmio_addr; + u16 status; + + status = RTL_R16 (IntrStatus) & RxAckBits; + + /* Clear out errors and receive interrupts */ + if (likely(status != 0)) { + if (unlikely(status & (RxFIFOOver | RxOverflow))) { + tp->dev->stats.rx_errors++; + if (status & RxFIFOOver) + tp->dev->stats.rx_fifo_errors++; + } + RTL_W16_F (IntrStatus, RxAckBits); + } +} + +static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, + int budget) +{ + void __iomem *ioaddr = tp->mmio_addr; + int received = 0; + unsigned char *rx_ring = tp->rx_ring; + unsigned int cur_rx = tp->cur_rx; + unsigned int rx_size = 0; + + pr_debug("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x," + " free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx, + RTL_R16 (RxBufAddr), + RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); + + while (netif_running(dev) && received < budget && + (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { + u32 ring_offset = cur_rx % RX_BUF_LEN; + u32 rx_status; + unsigned int pkt_size; + struct sk_buff *skb; + + rmb(); + + /* read size+status of next frame from DMA ring buffer */ + rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset)); + rx_size = rx_status >> 16; + pkt_size = rx_size - 4; + + if (netif_msg_rx_status(tp)) + pr_debug("%s: rtl8139_rx() status %4.4x, size %4.4x," + " cur %4.4x.\n", dev->name, rx_status, + rx_size, cur_rx); +#if RTL8139_DEBUG > 2 + { + int i; + pr_debug("%s: Frame contents ", dev->name); + for (i = 0; i < 70; i++) + pr_cont(" %2.2x", + rx_ring[ring_offset + i]); + pr_cont(".\n"); + } +#endif + + /* Packet copy from FIFO still in progress. + * Theoretically, this should never happen + * since EarlyRx is disabled. + */ + if (unlikely(rx_size == 0xfff0)) { + if (!tp->fifo_copy_timeout) + tp->fifo_copy_timeout = jiffies + 2; + else if (time_after(jiffies, tp->fifo_copy_timeout)) { + pr_debug("%s: hung FIFO. Reset.", dev->name); + rx_size = 0; + goto no_early_rx; + } + if (netif_msg_intr(tp)) { + pr_debug("%s: fifo copy in progress.", + dev->name); + } + tp->xstats.early_rx++; + break; + } + +no_early_rx: + tp->fifo_copy_timeout = 0; + + /* If Rx err or invalid rx_size/rx_status received + * (which happens if we get lost in the ring), + * Rx process gets reset, so we abort any further + * Rx processing. + */ + if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || + (rx_size < 8) || + (!(rx_status & RxStatusOK)))) { + rtl8139_rx_err (rx_status, dev, tp, ioaddr); + received = -1; + goto out; + } + + /* Malloc up new buffer, compatible with net-2e. */ + /* Omit the four octet CRC from the length. */ + + skb = netdev_alloc_skb_ip_align(dev, pkt_size); + if (likely(skb)) { +#if RX_BUF_IDX == 3 + wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); +#else + skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size); +#endif + skb_put (skb, pkt_size); + + skb->protocol = eth_type_trans (skb, dev); + + dev->stats.rx_bytes += pkt_size; + dev->stats.rx_packets++; + + netif_receive_skb (skb); + } else { + if (net_ratelimit()) + pr_warning("%s: Memory squeeze, dropping packet.\n", + dev->name); + dev->stats.rx_dropped++; + } + received++; + + cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; + RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); + + rtl8139_isr_ack(tp); + } + + if (unlikely(!received || rx_size == 0xfff0)) + rtl8139_isr_ack(tp); + + pr_debug("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x," + " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx, + RTL_R16 (RxBufAddr), + RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); + + tp->cur_rx = cur_rx; + + /* + * The receive buffer should be mostly empty. + * Tell NAPI to reenable the Rx irq. + */ + if (tp->fifo_copy_timeout) + received = budget; + +out: + return received; +} + + +static void rtl8139_weird_interrupt (struct net_device *dev, + struct rtl8139_private *tp, + void __iomem *ioaddr, + int status, int link_changed) +{ + pr_debug("%s: Abnormal interrupt, status %8.8x.\n", + dev->name, status); + + assert (dev != NULL); + assert (tp != NULL); + assert (ioaddr != NULL); + + /* Update the error count. */ + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + + if ((status & RxUnderrun) && link_changed && + (tp->drv_flags & HAS_LNK_CHNG)) { + rtl_check_media(dev, 0); + status &= ~RxUnderrun; + } + + if (status & (RxUnderrun | RxErr)) + dev->stats.rx_errors++; + + if (status & PCSTimeout) + dev->stats.rx_length_errors++; + if (status & RxUnderrun) + dev->stats.rx_fifo_errors++; + if (status & PCIErr) { + u16 pci_cmd_status; + pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); + pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); + + pr_err("%s: PCI Bus error %4.4x.\n", + dev->name, pci_cmd_status); + } +} + +static int rtl8139_poll(struct napi_struct *napi, int budget) +{ + struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi); + struct net_device *dev = tp->dev; + void __iomem *ioaddr = tp->mmio_addr; + int work_done; + + spin_lock(&tp->rx_lock); + work_done = 0; + if (likely(RTL_R16(IntrStatus) & RxAckBits)) + work_done += rtl8139_rx(dev, tp, budget); + + if (work_done < budget) { + unsigned long flags; + /* + * Order is important since data can get interrupted + * again when we think we are done. + */ + spin_lock_irqsave(&tp->lock, flags); + RTL_W16_F(IntrMask, rtl8139_intr_mask); + __napi_complete(napi); + spin_unlock_irqrestore(&tp->lock, flags); + } + spin_unlock(&tp->rx_lock); + + return work_done; +} + +/* The interrupt handler does all of the Rx thread work and cleans up + after the Tx thread. */ +static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance) +{ + struct net_device *dev = (struct net_device *) dev_instance; + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + u16 status, ackstat; + int link_changed = 0; /* avoid bogus "uninit" warning */ + int handled = 0; + + spin_lock (&tp->lock); + status = RTL_R16 (IntrStatus); + + /* shared irq? */ + if (unlikely((status & rtl8139_intr_mask) == 0)) + goto out; + + handled = 1; + + /* h/w no longer present (hotplug?) or major error, bail */ + if (unlikely(status == 0xFFFF)) + goto out; + + /* close possible race's with dev_close */ + if (unlikely(!netif_running(dev))) { + RTL_W16 (IntrMask, 0); + goto out; + } + + /* Acknowledge all of the current interrupt sources ASAP, but + an first get an additional status bit from CSCR. */ + if (unlikely(status & RxUnderrun)) + link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; + + ackstat = status & ~(RxAckBits | TxErr); + if (ackstat) + RTL_W16 (IntrStatus, ackstat); + + /* Receive packets are processed by poll routine. + If not running start it now. */ + if (status & RxAckBits){ + if (napi_schedule_prep(&tp->napi)) { + RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); + __napi_schedule(&tp->napi); + } + } + + /* Check uncommon events with one test. */ + if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) + rtl8139_weird_interrupt (dev, tp, ioaddr, + status, link_changed); + + if (status & (TxOK | TxErr)) { + rtl8139_tx_interrupt (dev, tp, ioaddr); + if (status & TxErr) + RTL_W16 (IntrStatus, TxErr); + } + out: + spin_unlock (&tp->lock); + + pr_debug("%s: exiting interrupt, intr_status=%#4.4x.\n", + dev->name, RTL_R16 (IntrStatus)); + return IRQ_RETVAL(handled); +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling receive - used by netconsole and other diagnostic tools + * to allow network i/o with interrupts disabled. + */ +static void rtl8139_poll_controller(struct net_device *dev) +{ + disable_irq(dev->irq); + rtl8139_interrupt(dev->irq, dev); + enable_irq(dev->irq); +} +#endif + +static int rtl8139_set_mac_address(struct net_device *dev, void *p) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + + spin_lock_irq(&tp->lock); + + RTL_W8_F(Cfg9346, Cfg9346_Unlock); + RTL_W32_F(MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0))); + RTL_W32_F(MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4))); + RTL_W8_F(Cfg9346, Cfg9346_Lock); + + spin_unlock_irq(&tp->lock); + + return 0; +} + +static int rtl8139_close (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + unsigned long flags; + + netif_stop_queue(dev); + napi_disable(&tp->napi); + + if (netif_msg_ifdown(tp)) + pr_debug("%s: Shutting down ethercard, status was 0x%4.4x.\n", + dev->name, RTL_R16 (IntrStatus)); + + spin_lock_irqsave (&tp->lock, flags); + + /* Stop the chip's Tx and Rx DMA processes. */ + RTL_W8 (ChipCmd, 0); + + /* Disable interrupts by clearing the interrupt mask. */ + RTL_W16 (IntrMask, 0); + + /* Update the error counts. */ + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + + spin_unlock_irqrestore (&tp->lock, flags); + + free_irq (dev->irq, dev); + + rtl8139_tx_clear (tp); + + dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, + tp->rx_ring, tp->rx_ring_dma); + dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, + tp->tx_bufs, tp->tx_bufs_dma); + tp->rx_ring = NULL; + tp->tx_bufs = NULL; + + /* Green! Put the chip in low-power mode. */ + RTL_W8 (Cfg9346, Cfg9346_Unlock); + + if (rtl_chip_info[tp->chipset].flags & HasHltClk) + RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ + + return 0; +} + + +/* Get the ethtool Wake-on-LAN settings. Assumes that wol points to + kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and + other threads or interrupts aren't messing with the 8139. */ +static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + + spin_lock_irq(&tp->lock); + if (rtl_chip_info[tp->chipset].flags & HasLWake) { + u8 cfg3 = RTL_R8 (Config3); + u8 cfg5 = RTL_R8 (Config5); + + wol->supported = WAKE_PHY | WAKE_MAGIC + | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; + + wol->wolopts = 0; + if (cfg3 & Cfg3_LinkUp) + wol->wolopts |= WAKE_PHY; + if (cfg3 & Cfg3_Magic) + wol->wolopts |= WAKE_MAGIC; + /* (KON)FIXME: See how netdev_set_wol() handles the + following constants. */ + if (cfg5 & Cfg5_UWF) + wol->wolopts |= WAKE_UCAST; + if (cfg5 & Cfg5_MWF) + wol->wolopts |= WAKE_MCAST; + if (cfg5 & Cfg5_BWF) + wol->wolopts |= WAKE_BCAST; + } + spin_unlock_irq(&tp->lock); +} + + +/* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes + that wol points to kernel memory and other threads or interrupts + aren't messing with the 8139. */ +static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + u32 support; + u8 cfg3, cfg5; + + support = ((rtl_chip_info[tp->chipset].flags & HasLWake) + ? (WAKE_PHY | WAKE_MAGIC + | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) + : 0); + if (wol->wolopts & ~support) + return -EINVAL; + + spin_lock_irq(&tp->lock); + cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); + if (wol->wolopts & WAKE_PHY) + cfg3 |= Cfg3_LinkUp; + if (wol->wolopts & WAKE_MAGIC) + cfg3 |= Cfg3_Magic; + RTL_W8 (Cfg9346, Cfg9346_Unlock); + RTL_W8 (Config3, cfg3); + RTL_W8 (Cfg9346, Cfg9346_Lock); + + cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); + /* (KON)FIXME: These are untested. We may have to set the + CRC0, Wakeup0 and LSBCRC0 registers too, but I have no + documentation. */ + if (wol->wolopts & WAKE_UCAST) + cfg5 |= Cfg5_UWF; + if (wol->wolopts & WAKE_MCAST) + cfg5 |= Cfg5_MWF; + if (wol->wolopts & WAKE_BCAST) + cfg5 |= Cfg5_BWF; + RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ + spin_unlock_irq(&tp->lock); + + return 0; +} + +static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + struct rtl8139_private *tp = netdev_priv(dev); + strcpy(info->driver, DRV_NAME); + strcpy(info->version, DRV_VERSION); + strcpy(info->bus_info, pci_name(tp->pci_dev)); + info->regdump_len = tp->regs_len; +} + +static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct rtl8139_private *tp = netdev_priv(dev); + spin_lock_irq(&tp->lock); + mii_ethtool_gset(&tp->mii, cmd); + spin_unlock_irq(&tp->lock); + return 0; +} + +static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int rc; + spin_lock_irq(&tp->lock); + rc = mii_ethtool_sset(&tp->mii, cmd); + spin_unlock_irq(&tp->lock); + return rc; +} + +static int rtl8139_nway_reset(struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + return mii_nway_restart(&tp->mii); +} + +static u32 rtl8139_get_link(struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + return mii_link_ok(&tp->mii); +} + +static u32 rtl8139_get_msglevel(struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + return tp->msg_enable; +} + +static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) +{ + struct rtl8139_private *tp = netdev_priv(dev); + tp->msg_enable = datum; +} + +static int rtl8139_get_regs_len(struct net_device *dev) +{ + struct rtl8139_private *tp; + /* TODO: we are too slack to do reg dumping for pio, for now */ + if (use_io) + return 0; + tp = netdev_priv(dev); + return tp->regs_len; +} + +static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) +{ + struct rtl8139_private *tp; + + /* TODO: we are too slack to do reg dumping for pio, for now */ + if (use_io) + return; + tp = netdev_priv(dev); + + regs->version = RTL_REGS_VER; + + spin_lock_irq(&tp->lock); + memcpy_fromio(regbuf, tp->mmio_addr, regs->len); + spin_unlock_irq(&tp->lock); +} + +static int rtl8139_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return RTL_NUM_STATS; + default: + return -EOPNOTSUPP; + } +} + +static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) +{ + struct rtl8139_private *tp = netdev_priv(dev); + + data[0] = tp->xstats.early_rx; + data[1] = tp->xstats.tx_buf_mapped; + data[2] = tp->xstats.tx_timeouts; + data[3] = tp->xstats.rx_lost_in_ring; +} + +static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) +{ + memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); +} + +static const struct ethtool_ops rtl8139_ethtool_ops = { + .get_drvinfo = rtl8139_get_drvinfo, + .get_settings = rtl8139_get_settings, + .set_settings = rtl8139_set_settings, + .get_regs_len = rtl8139_get_regs_len, + .get_regs = rtl8139_get_regs, + .nway_reset = rtl8139_nway_reset, + .get_link = rtl8139_get_link, + .get_msglevel = rtl8139_get_msglevel, + .set_msglevel = rtl8139_set_msglevel, + .get_wol = rtl8139_get_wol, + .set_wol = rtl8139_set_wol, + .get_strings = rtl8139_get_strings, + .get_sset_count = rtl8139_get_sset_count, + .get_ethtool_stats = rtl8139_get_ethtool_stats, +}; + +static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + struct rtl8139_private *tp = netdev_priv(dev); + int rc; + + if (!netif_running(dev)) + return -EINVAL; + + spin_lock_irq(&tp->lock); + rc = generic_mii_ioctl(&tp->mii, if_mii(rq), cmd, NULL); + spin_unlock_irq(&tp->lock); + + return rc; +} + + +static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + unsigned long flags; + + if (netif_running(dev)) { + spin_lock_irqsave (&tp->lock, flags); + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + spin_unlock_irqrestore (&tp->lock, flags); + } + + return &dev->stats; +} + +/* Set or clear the multicast filter for this adaptor. + This routine is not state sensitive and need not be SMP locked. */ + +static void __set_rx_mode (struct net_device *dev) +{ + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + u32 mc_filter[2]; /* Multicast hash filter */ + int i, rx_mode; + u32 tmp; + + pr_debug("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n", + dev->name, dev->flags, RTL_R32 (RxConfig)); + + /* Note: do not reorder, GCC is clever about common statements. */ + if (dev->flags & IFF_PROMISC) { + rx_mode = + AcceptBroadcast | AcceptMulticast | AcceptMyPhys | + AcceptAllPhys; + mc_filter[1] = mc_filter[0] = 0xffffffff; + } else if ((dev->mc_count > multicast_filter_limit) || + (dev->flags & IFF_ALLMULTI)) { + /* Too many to filter perfectly -- accept all multicasts. */ + rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; + mc_filter[1] = mc_filter[0] = 0xffffffff; + } else { + struct dev_mc_list *mclist; + rx_mode = AcceptBroadcast | AcceptMyPhys; + mc_filter[1] = mc_filter[0] = 0; + for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; + i++, mclist = mclist->next) { + int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; + + mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); + rx_mode |= AcceptMulticast; + } + } + + /* We can safely update without stopping the chip. */ + tmp = rtl8139_rx_config | rx_mode; + if (tp->rx_config != tmp) { + RTL_W32_F (RxConfig, tmp); + tp->rx_config = tmp; + } + RTL_W32_F (MAR0 + 0, mc_filter[0]); + RTL_W32_F (MAR0 + 4, mc_filter[1]); +} + +static void rtl8139_set_rx_mode (struct net_device *dev) +{ + unsigned long flags; + struct rtl8139_private *tp = netdev_priv(dev); + + spin_lock_irqsave (&tp->lock, flags); + __set_rx_mode(dev); + spin_unlock_irqrestore (&tp->lock, flags); +} + +#ifdef CONFIG_PM + +static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) +{ + struct net_device *dev = pci_get_drvdata (pdev); + struct rtl8139_private *tp = netdev_priv(dev); + void __iomem *ioaddr = tp->mmio_addr; + unsigned long flags; + + pci_save_state (pdev); + + if (!netif_running (dev)) + return 0; + + netif_device_detach (dev); + + spin_lock_irqsave (&tp->lock, flags); + + /* Disable interrupts, stop Tx and Rx. */ + RTL_W16 (IntrMask, 0); + RTL_W8 (ChipCmd, 0); + + /* Update the error counts. */ + dev->stats.rx_missed_errors += RTL_R32 (RxMissed); + RTL_W32 (RxMissed, 0); + + spin_unlock_irqrestore (&tp->lock, flags); + + pci_set_power_state (pdev, PCI_D3hot); + + return 0; +} + + +static int rtl8139_resume (struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata (pdev); + + pci_restore_state (pdev); + if (!netif_running (dev)) + return 0; + pci_set_power_state (pdev, PCI_D0); + rtl8139_init_ring (dev); + rtl8139_hw_start (dev); + netif_device_attach (dev); + return 0; +} + +#endif /* CONFIG_PM */ + + +static struct pci_driver rtl8139_pci_driver = { + .name = DRV_NAME, + .id_table = rtl8139_pci_tbl, + .probe = rtl8139_init_one, + .remove = __devexit_p(rtl8139_remove_one), +#ifdef CONFIG_PM + .suspend = rtl8139_suspend, + .resume = rtl8139_resume, +#endif /* CONFIG_PM */ +}; + + +static int __init rtl8139_init_module (void) +{ + /* when we're a module, we always print a version message, + * even if no 8139 board is found. + */ +#ifdef MODULE + pr_info(RTL8139_DRIVER_NAME "\n"); +#endif + + return pci_register_driver(&rtl8139_pci_driver); +} + + +static void __exit rtl8139_cleanup_module (void) +{ + pci_unregister_driver (&rtl8139_pci_driver); +} + + +module_init(rtl8139_init_module); +module_exit(rtl8139_cleanup_module); diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000-2.6.31-ethercat.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000-2.6.31-ethercat.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,357 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* Linux PRO/1000 Ethernet Driver main header file */ + +#ifndef _E1000_H_ +#define _E1000_H_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "../ecdev.h" + + +#define BAR_0 0 +#define BAR_1 1 +#define BAR_5 5 + +#define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} + +struct e1000_adapter; + +#include "e1000_hw-2.6.31-ethercat.h" + +#ifdef DBG +#define E1000_DBG(args...) printk(KERN_DEBUG "ec_e1000: " args) +#else +#define E1000_DBG(args...) +#endif + +#define E1000_ERR(args...) printk(KERN_ERR "ec_e1000: " args) + +#define PFX "ec_e1000: " + +#define DPRINTK(nlevel, klevel, fmt, args...) \ +do { \ + if (NETIF_MSG_##nlevel & adapter->msg_enable) \ + printk(KERN_##klevel PFX "%s: %s: " fmt, \ + adapter->netdev->name, __func__, ##args); \ +} while (0) + +#define E1000_MAX_INTR 10 + +/* TX/RX descriptor defines */ +#define E1000_DEFAULT_TXD 256 +#define E1000_MAX_TXD 256 +#define E1000_MIN_TXD 80 +#define E1000_MAX_82544_TXD 4096 + +#define E1000_DEFAULT_RXD 256 +#define E1000_MAX_RXD 256 +#define E1000_MIN_RXD 80 +#define E1000_MAX_82544_RXD 4096 + +/* this is the size past which hardware will drop packets when setting LPE=0 */ +#define MAXIMUM_ETHERNET_VLAN_SIZE 1522 + +/* Supported Rx Buffer Sizes */ +#define E1000_RXBUFFER_128 128 /* Used for packet split */ +#define E1000_RXBUFFER_256 256 /* Used for packet split */ +#define E1000_RXBUFFER_512 512 +#define E1000_RXBUFFER_1024 1024 +#define E1000_RXBUFFER_2048 2048 +#define E1000_RXBUFFER_4096 4096 +#define E1000_RXBUFFER_8192 8192 +#define E1000_RXBUFFER_16384 16384 + +/* SmartSpeed delimiters */ +#define E1000_SMARTSPEED_DOWNSHIFT 3 +#define E1000_SMARTSPEED_MAX 15 + +/* Packet Buffer allocations */ +#define E1000_PBA_BYTES_SHIFT 0xA +#define E1000_TX_HEAD_ADDR_SHIFT 7 +#define E1000_PBA_TX_MASK 0xFFFF0000 + +/* Flow Control Watermarks */ +#define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ +#define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ + +#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */ + +/* How many Tx Descriptors do we need to call netif_wake_queue ? */ +#define E1000_TX_QUEUE_WAKE 16 +/* How many Rx Buffers do we bundle into one write to the hardware ? */ +#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ + +#define AUTO_ALL_MODES 0 +#define E1000_EEPROM_82544_APM 0x0004 +#define E1000_EEPROM_ICH8_APME 0x0004 +#define E1000_EEPROM_APME 0x0400 + +#ifndef E1000_MASTER_SLAVE +/* Switch to override PHY master/slave setting */ +#define E1000_MASTER_SLAVE e1000_ms_hw_default +#endif + +#define E1000_MNG_VLAN_NONE (-1) + +/* wrapper around a pointer to a socket buffer, + * so a DMA handle can be stored along with the buffer */ +struct e1000_buffer { + struct sk_buff *skb; + dma_addr_t dma; + unsigned long time_stamp; + u16 length; + u16 next_to_watch; +}; + +struct e1000_tx_ring { + /* pointer to the descriptor ring memory */ + void *desc; + /* physical address of the descriptor ring */ + dma_addr_t dma; + /* length of descriptor ring in bytes */ + unsigned int size; + /* number of descriptors in the ring */ + unsigned int count; + /* next descriptor to associate a buffer with */ + unsigned int next_to_use; + /* next descriptor to check for DD status bit */ + unsigned int next_to_clean; + /* array of buffer information structs */ + struct e1000_buffer *buffer_info; + + u16 tdh; + u16 tdt; + bool last_tx_tso; +}; + +struct e1000_rx_ring { + /* pointer to the descriptor ring memory */ + void *desc; + /* physical address of the descriptor ring */ + dma_addr_t dma; + /* length of descriptor ring in bytes */ + unsigned int size; + /* number of descriptors in the ring */ + unsigned int count; + /* next descriptor to associate a buffer with */ + unsigned int next_to_use; + /* next descriptor to check for DD status bit */ + unsigned int next_to_clean; + /* array of buffer information structs */ + struct e1000_buffer *buffer_info; + + /* cpu for rx queue */ + int cpu; + + u16 rdh; + u16 rdt; +}; + +#define E1000_DESC_UNUSED(R) \ + ((((R)->next_to_clean > (R)->next_to_use) \ + ? 0 : (R)->count) + (R)->next_to_clean - (R)->next_to_use - 1) + +#define E1000_RX_DESC_EXT(R, i) \ + (&(((union e1000_rx_desc_extended *)((R).desc))[i])) +#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) +#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) +#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) +#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) + +/* board specific private data structure */ + +struct e1000_adapter { + struct timer_list tx_fifo_stall_timer; + struct timer_list watchdog_timer; + struct timer_list phy_info_timer; + struct vlan_group *vlgrp; + u16 mng_vlan_id; + u32 bd_number; + u32 rx_buffer_len; + u32 wol; + u32 smartspeed; + u32 en_mng_pt; + u16 link_speed; + u16 link_duplex; + spinlock_t stats_lock; + unsigned int total_tx_bytes; + unsigned int total_tx_packets; + unsigned int total_rx_bytes; + unsigned int total_rx_packets; + /* Interrupt Throttle Rate */ + u32 itr; + u32 itr_setting; + u16 tx_itr; + u16 rx_itr; + + struct work_struct reset_task; + u8 fc_autoneg; + + struct timer_list blink_timer; + unsigned long led_status; + + /* TX */ + struct e1000_tx_ring *tx_ring; /* One per active queue */ + unsigned int restart_queue; + unsigned long tx_queue_len; + u32 txd_cmd; + u32 tx_int_delay; + u32 tx_abs_int_delay; + u32 gotcl; + u64 gotcl_old; + u64 tpt_old; + u64 colc_old; + u32 tx_timeout_count; + u32 tx_fifo_head; + u32 tx_head_addr; + u32 tx_fifo_size; + u8 tx_timeout_factor; + atomic_t tx_fifo_stall; + bool pcix_82544; + bool detect_tx_hung; + + /* RX */ + bool (*clean_rx)(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); + void (*alloc_rx_buf)(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); + struct e1000_rx_ring *rx_ring; /* One per active queue */ + struct napi_struct napi; + + int num_tx_queues; + int num_rx_queues; + + u64 hw_csum_err; + u64 hw_csum_good; + u64 rx_hdr_split; + u32 alloc_rx_buff_failed; + u32 rx_int_delay; + u32 rx_abs_int_delay; + bool rx_csum; + u32 gorcl; + u64 gorcl_old; + + /* OS defined structs */ + struct net_device *netdev; + struct pci_dev *pdev; + struct net_device_stats net_stats; + + /* structs defined in e1000_hw.h */ + struct e1000_hw hw; + struct e1000_hw_stats stats; + struct e1000_phy_info phy_info; + struct e1000_phy_stats phy_stats; + + u32 test_icr; + struct e1000_tx_ring test_tx_ring; + struct e1000_rx_ring test_rx_ring; + + int msg_enable; + bool have_msi; + + /* to not mess up cache alignment, always add to the bottom */ + bool tso_force; + bool smart_power_down; /* phy smart power down */ + bool quad_port_a; + unsigned long flags; + u32 eeprom_wol; + + /* for ioport free */ + int bars; + int need_ioport; + + ec_device_t *ecdev; + unsigned long ec_watchdog_jiffies; +}; + +enum e1000_state_t { + __E1000_TESTING, + __E1000_RESETTING, + __E1000_DOWN +}; + +extern char e1000_driver_name[]; +extern const char e1000_driver_version[]; + +extern int e1000_up(struct e1000_adapter *adapter); +extern void e1000_down(struct e1000_adapter *adapter); +extern void e1000_reinit_locked(struct e1000_adapter *adapter); +extern void e1000_reset(struct e1000_adapter *adapter); +extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); +extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter); +extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +extern void e1000_update_stats(struct e1000_adapter *adapter); +extern void e1000_power_up_phy(struct e1000_adapter *); +extern void e1000_set_ethtool_ops(struct net_device *netdev); +extern void e1000_check_options(struct e1000_adapter *adapter); + +#endif /* _E1000_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000-2.6.31-orig.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000-2.6.31-orig.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,352 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* Linux PRO/1000 Ethernet Driver main header file */ + +#ifndef _E1000_H_ +#define _E1000_H_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define BAR_0 0 +#define BAR_1 1 +#define BAR_5 5 + +#define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} + +struct e1000_adapter; + +#include "e1000_hw.h" + +#ifdef DBG +#define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args) +#else +#define E1000_DBG(args...) +#endif + +#define E1000_ERR(args...) printk(KERN_ERR "e1000: " args) + +#define PFX "e1000: " + +#define DPRINTK(nlevel, klevel, fmt, args...) \ +do { \ + if (NETIF_MSG_##nlevel & adapter->msg_enable) \ + printk(KERN_##klevel PFX "%s: %s: " fmt, \ + adapter->netdev->name, __func__, ##args); \ +} while (0) + +#define E1000_MAX_INTR 10 + +/* TX/RX descriptor defines */ +#define E1000_DEFAULT_TXD 256 +#define E1000_MAX_TXD 256 +#define E1000_MIN_TXD 80 +#define E1000_MAX_82544_TXD 4096 + +#define E1000_DEFAULT_RXD 256 +#define E1000_MAX_RXD 256 +#define E1000_MIN_RXD 80 +#define E1000_MAX_82544_RXD 4096 + +/* this is the size past which hardware will drop packets when setting LPE=0 */ +#define MAXIMUM_ETHERNET_VLAN_SIZE 1522 + +/* Supported Rx Buffer Sizes */ +#define E1000_RXBUFFER_128 128 /* Used for packet split */ +#define E1000_RXBUFFER_256 256 /* Used for packet split */ +#define E1000_RXBUFFER_512 512 +#define E1000_RXBUFFER_1024 1024 +#define E1000_RXBUFFER_2048 2048 +#define E1000_RXBUFFER_4096 4096 +#define E1000_RXBUFFER_8192 8192 +#define E1000_RXBUFFER_16384 16384 + +/* SmartSpeed delimiters */ +#define E1000_SMARTSPEED_DOWNSHIFT 3 +#define E1000_SMARTSPEED_MAX 15 + +/* Packet Buffer allocations */ +#define E1000_PBA_BYTES_SHIFT 0xA +#define E1000_TX_HEAD_ADDR_SHIFT 7 +#define E1000_PBA_TX_MASK 0xFFFF0000 + +/* Flow Control Watermarks */ +#define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ +#define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ + +#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */ + +/* How many Tx Descriptors do we need to call netif_wake_queue ? */ +#define E1000_TX_QUEUE_WAKE 16 +/* How many Rx Buffers do we bundle into one write to the hardware ? */ +#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ + +#define AUTO_ALL_MODES 0 +#define E1000_EEPROM_82544_APM 0x0004 +#define E1000_EEPROM_ICH8_APME 0x0004 +#define E1000_EEPROM_APME 0x0400 + +#ifndef E1000_MASTER_SLAVE +/* Switch to override PHY master/slave setting */ +#define E1000_MASTER_SLAVE e1000_ms_hw_default +#endif + +#define E1000_MNG_VLAN_NONE (-1) + +/* wrapper around a pointer to a socket buffer, + * so a DMA handle can be stored along with the buffer */ +struct e1000_buffer { + struct sk_buff *skb; + dma_addr_t dma; + unsigned long time_stamp; + u16 length; + u16 next_to_watch; +}; + +struct e1000_tx_ring { + /* pointer to the descriptor ring memory */ + void *desc; + /* physical address of the descriptor ring */ + dma_addr_t dma; + /* length of descriptor ring in bytes */ + unsigned int size; + /* number of descriptors in the ring */ + unsigned int count; + /* next descriptor to associate a buffer with */ + unsigned int next_to_use; + /* next descriptor to check for DD status bit */ + unsigned int next_to_clean; + /* array of buffer information structs */ + struct e1000_buffer *buffer_info; + + u16 tdh; + u16 tdt; + bool last_tx_tso; +}; + +struct e1000_rx_ring { + /* pointer to the descriptor ring memory */ + void *desc; + /* physical address of the descriptor ring */ + dma_addr_t dma; + /* length of descriptor ring in bytes */ + unsigned int size; + /* number of descriptors in the ring */ + unsigned int count; + /* next descriptor to associate a buffer with */ + unsigned int next_to_use; + /* next descriptor to check for DD status bit */ + unsigned int next_to_clean; + /* array of buffer information structs */ + struct e1000_buffer *buffer_info; + + /* cpu for rx queue */ + int cpu; + + u16 rdh; + u16 rdt; +}; + +#define E1000_DESC_UNUSED(R) \ + ((((R)->next_to_clean > (R)->next_to_use) \ + ? 0 : (R)->count) + (R)->next_to_clean - (R)->next_to_use - 1) + +#define E1000_RX_DESC_EXT(R, i) \ + (&(((union e1000_rx_desc_extended *)((R).desc))[i])) +#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) +#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) +#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) +#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) + +/* board specific private data structure */ + +struct e1000_adapter { + struct timer_list tx_fifo_stall_timer; + struct timer_list watchdog_timer; + struct timer_list phy_info_timer; + struct vlan_group *vlgrp; + u16 mng_vlan_id; + u32 bd_number; + u32 rx_buffer_len; + u32 wol; + u32 smartspeed; + u32 en_mng_pt; + u16 link_speed; + u16 link_duplex; + spinlock_t stats_lock; + unsigned int total_tx_bytes; + unsigned int total_tx_packets; + unsigned int total_rx_bytes; + unsigned int total_rx_packets; + /* Interrupt Throttle Rate */ + u32 itr; + u32 itr_setting; + u16 tx_itr; + u16 rx_itr; + + struct work_struct reset_task; + u8 fc_autoneg; + + struct timer_list blink_timer; + unsigned long led_status; + + /* TX */ + struct e1000_tx_ring *tx_ring; /* One per active queue */ + unsigned int restart_queue; + unsigned long tx_queue_len; + u32 txd_cmd; + u32 tx_int_delay; + u32 tx_abs_int_delay; + u32 gotcl; + u64 gotcl_old; + u64 tpt_old; + u64 colc_old; + u32 tx_timeout_count; + u32 tx_fifo_head; + u32 tx_head_addr; + u32 tx_fifo_size; + u8 tx_timeout_factor; + atomic_t tx_fifo_stall; + bool pcix_82544; + bool detect_tx_hung; + + /* RX */ + bool (*clean_rx)(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); + void (*alloc_rx_buf)(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); + struct e1000_rx_ring *rx_ring; /* One per active queue */ + struct napi_struct napi; + + int num_tx_queues; + int num_rx_queues; + + u64 hw_csum_err; + u64 hw_csum_good; + u64 rx_hdr_split; + u32 alloc_rx_buff_failed; + u32 rx_int_delay; + u32 rx_abs_int_delay; + bool rx_csum; + u32 gorcl; + u64 gorcl_old; + + /* OS defined structs */ + struct net_device *netdev; + struct pci_dev *pdev; + struct net_device_stats net_stats; + + /* structs defined in e1000_hw.h */ + struct e1000_hw hw; + struct e1000_hw_stats stats; + struct e1000_phy_info phy_info; + struct e1000_phy_stats phy_stats; + + u32 test_icr; + struct e1000_tx_ring test_tx_ring; + struct e1000_rx_ring test_rx_ring; + + int msg_enable; + bool have_msi; + + /* to not mess up cache alignment, always add to the bottom */ + bool tso_force; + bool smart_power_down; /* phy smart power down */ + bool quad_port_a; + unsigned long flags; + u32 eeprom_wol; + + /* for ioport free */ + int bars; + int need_ioport; +}; + +enum e1000_state_t { + __E1000_TESTING, + __E1000_RESETTING, + __E1000_DOWN +}; + +extern char e1000_driver_name[]; +extern const char e1000_driver_version[]; + +extern int e1000_up(struct e1000_adapter *adapter); +extern void e1000_down(struct e1000_adapter *adapter); +extern void e1000_reinit_locked(struct e1000_adapter *adapter); +extern void e1000_reset(struct e1000_adapter *adapter); +extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); +extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter); +extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +extern void e1000_update_stats(struct e1000_adapter *adapter); +extern void e1000_power_up_phy(struct e1000_adapter *); +extern void e1000_set_ethtool_ops(struct net_device *netdev); +extern void e1000_check_options(struct e1000_adapter *adapter); + +#endif /* _E1000_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000-2.6.33-ethercat.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000-2.6.33-ethercat.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,361 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* Linux PRO/1000 Ethernet Driver main header file */ + +#ifndef _E1000_H_ +#define _E1000_H_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "../ecdev.h" + + +#define BAR_0 0 +#define BAR_1 1 +#define BAR_5 5 + +#define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} + +struct e1000_adapter; + +#include "e1000_hw-2.6.33-ethercat.h" + +#ifdef DBG +#define E1000_DBG(args...) printk(KERN_DEBUG "ec_e1000: " args) +#else +#define E1000_DBG(args...) +#endif + +#define E1000_ERR(args...) printk(KERN_ERR "ec_e1000: " args) + +#define PFX "ec_e1000: " + +#define DPRINTK(nlevel, klevel, fmt, args...) \ +do { \ + if (NETIF_MSG_##nlevel & adapter->msg_enable) \ + printk(KERN_##klevel PFX "%s: %s: " fmt, \ + adapter->netdev->name, __func__, ##args); \ +} while (0) + +#define E1000_MAX_INTR 10 + +/* TX/RX descriptor defines */ +#define E1000_DEFAULT_TXD 256 +#define E1000_MAX_TXD 256 +#define E1000_MIN_TXD 80 +#define E1000_MAX_82544_TXD 4096 + +#define E1000_DEFAULT_RXD 256 +#define E1000_MAX_RXD 256 +#define E1000_MIN_RXD 80 +#define E1000_MAX_82544_RXD 4096 + +#define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */ +#define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */ + +/* this is the size past which hardware will drop packets when setting LPE=0 */ +#define MAXIMUM_ETHERNET_VLAN_SIZE 1522 + +/* Supported Rx Buffer Sizes */ +#define E1000_RXBUFFER_128 128 /* Used for packet split */ +#define E1000_RXBUFFER_256 256 /* Used for packet split */ +#define E1000_RXBUFFER_512 512 +#define E1000_RXBUFFER_1024 1024 +#define E1000_RXBUFFER_2048 2048 +#define E1000_RXBUFFER_4096 4096 +#define E1000_RXBUFFER_8192 8192 +#define E1000_RXBUFFER_16384 16384 + +/* SmartSpeed delimiters */ +#define E1000_SMARTSPEED_DOWNSHIFT 3 +#define E1000_SMARTSPEED_MAX 15 + +/* Packet Buffer allocations */ +#define E1000_PBA_BYTES_SHIFT 0xA +#define E1000_TX_HEAD_ADDR_SHIFT 7 +#define E1000_PBA_TX_MASK 0xFFFF0000 + +/* Flow Control Watermarks */ +#define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ +#define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ + +#define E1000_FC_PAUSE_TIME 0xFFFF /* pause for the max or until send xon */ + +/* How many Tx Descriptors do we need to call netif_wake_queue ? */ +#define E1000_TX_QUEUE_WAKE 16 +/* How many Rx Buffers do we bundle into one write to the hardware ? */ +#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ + +#define AUTO_ALL_MODES 0 +#define E1000_EEPROM_82544_APM 0x0004 +#define E1000_EEPROM_APME 0x0400 + +#ifndef E1000_MASTER_SLAVE +/* Switch to override PHY master/slave setting */ +#define E1000_MASTER_SLAVE e1000_ms_hw_default +#endif + +#define E1000_MNG_VLAN_NONE (-1) + +/* wrapper around a pointer to a socket buffer, + * so a DMA handle can be stored along with the buffer */ +struct e1000_buffer { + struct sk_buff *skb; + dma_addr_t dma; + struct page *page; + unsigned long time_stamp; + u16 length; + u16 next_to_watch; + u16 mapped_as_page; +}; + +struct e1000_tx_ring { + /* pointer to the descriptor ring memory */ + void *desc; + /* physical address of the descriptor ring */ + dma_addr_t dma; + /* length of descriptor ring in bytes */ + unsigned int size; + /* number of descriptors in the ring */ + unsigned int count; + /* next descriptor to associate a buffer with */ + unsigned int next_to_use; + /* next descriptor to check for DD status bit */ + unsigned int next_to_clean; + /* array of buffer information structs */ + struct e1000_buffer *buffer_info; + + u16 tdh; + u16 tdt; + bool last_tx_tso; +}; + +struct e1000_rx_ring { + /* pointer to the descriptor ring memory */ + void *desc; + /* physical address of the descriptor ring */ + dma_addr_t dma; + /* length of descriptor ring in bytes */ + unsigned int size; + /* number of descriptors in the ring */ + unsigned int count; + /* next descriptor to associate a buffer with */ + unsigned int next_to_use; + /* next descriptor to check for DD status bit */ + unsigned int next_to_clean; + /* array of buffer information structs */ + struct e1000_buffer *buffer_info; + struct sk_buff *rx_skb_top; + + /* cpu for rx queue */ + int cpu; + + u16 rdh; + u16 rdt; +}; + +#define E1000_DESC_UNUSED(R) \ + ((((R)->next_to_clean > (R)->next_to_use) \ + ? 0 : (R)->count) + (R)->next_to_clean - (R)->next_to_use - 1) + +#define E1000_RX_DESC_EXT(R, i) \ + (&(((union e1000_rx_desc_extended *)((R).desc))[i])) +#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) +#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) +#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) +#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) + +/* board specific private data structure */ + +struct e1000_adapter { + struct timer_list tx_fifo_stall_timer; + struct timer_list watchdog_timer; + struct timer_list phy_info_timer; + struct vlan_group *vlgrp; + u16 mng_vlan_id; + u32 bd_number; + u32 rx_buffer_len; + u32 wol; + u32 smartspeed; + u32 en_mng_pt; + u16 link_speed; + u16 link_duplex; + spinlock_t stats_lock; + unsigned int total_tx_bytes; + unsigned int total_tx_packets; + unsigned int total_rx_bytes; + unsigned int total_rx_packets; + /* Interrupt Throttle Rate */ + u32 itr; + u32 itr_setting; + u16 tx_itr; + u16 rx_itr; + + struct work_struct reset_task; + u8 fc_autoneg; + + struct timer_list blink_timer; + unsigned long led_status; + + /* TX */ + struct e1000_tx_ring *tx_ring; /* One per active queue */ + unsigned int restart_queue; + unsigned long tx_queue_len; + u32 txd_cmd; + u32 tx_int_delay; + u32 tx_abs_int_delay; + u32 gotcl; + u64 gotcl_old; + u64 tpt_old; + u64 colc_old; + u32 tx_timeout_count; + u32 tx_fifo_head; + u32 tx_head_addr; + u32 tx_fifo_size; + u8 tx_timeout_factor; + atomic_t tx_fifo_stall; + bool pcix_82544; + bool detect_tx_hung; + + /* RX */ + bool (*clean_rx)(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); + void (*alloc_rx_buf)(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); + struct e1000_rx_ring *rx_ring; /* One per active queue */ + struct napi_struct napi; + + int num_tx_queues; + int num_rx_queues; + + u64 hw_csum_err; + u64 hw_csum_good; + u32 alloc_rx_buff_failed; + u32 rx_int_delay; + u32 rx_abs_int_delay; + bool rx_csum; + u32 gorcl; + u64 gorcl_old; + + /* OS defined structs */ + struct net_device *netdev; + struct pci_dev *pdev; + + /* structs defined in e1000_hw.h */ + struct e1000_hw hw; + struct e1000_hw_stats stats; + struct e1000_phy_info phy_info; + struct e1000_phy_stats phy_stats; + + u32 test_icr; + struct e1000_tx_ring test_tx_ring; + struct e1000_rx_ring test_rx_ring; + + int msg_enable; + + /* to not mess up cache alignment, always add to the bottom */ + bool tso_force; + bool smart_power_down; /* phy smart power down */ + bool quad_port_a; + unsigned long flags; + u32 eeprom_wol; + + /* for ioport free */ + int bars; + int need_ioport; + + bool discarding; + + ec_device_t *ecdev; + unsigned long ec_watchdog_jiffies; +}; + +enum e1000_state_t { + __E1000_TESTING, + __E1000_RESETTING, + __E1000_DOWN +}; + +extern char e1000_driver_name[]; +extern const char e1000_driver_version[]; + +extern int e1000_up(struct e1000_adapter *adapter); +extern void e1000_down(struct e1000_adapter *adapter); +extern void e1000_reinit_locked(struct e1000_adapter *adapter); +extern void e1000_reset(struct e1000_adapter *adapter); +extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); +extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter); +extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +extern void e1000_update_stats(struct e1000_adapter *adapter); +extern void e1000_power_up_phy(struct e1000_adapter *); +extern void e1000_set_ethtool_ops(struct net_device *netdev); +extern void e1000_check_options(struct e1000_adapter *adapter); + +#endif /* _E1000_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000-2.6.33-orig.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000-2.6.33-orig.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,356 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* Linux PRO/1000 Ethernet Driver main header file */ + +#ifndef _E1000_H_ +#define _E1000_H_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define BAR_0 0 +#define BAR_1 1 +#define BAR_5 5 + +#define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} + +struct e1000_adapter; + +#include "e1000_hw.h" + +#ifdef DBG +#define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args) +#else +#define E1000_DBG(args...) +#endif + +#define E1000_ERR(args...) printk(KERN_ERR "e1000: " args) + +#define PFX "e1000: " + +#define DPRINTK(nlevel, klevel, fmt, args...) \ +do { \ + if (NETIF_MSG_##nlevel & adapter->msg_enable) \ + printk(KERN_##klevel PFX "%s: %s: " fmt, \ + adapter->netdev->name, __func__, ##args); \ +} while (0) + +#define E1000_MAX_INTR 10 + +/* TX/RX descriptor defines */ +#define E1000_DEFAULT_TXD 256 +#define E1000_MAX_TXD 256 +#define E1000_MIN_TXD 80 +#define E1000_MAX_82544_TXD 4096 + +#define E1000_DEFAULT_RXD 256 +#define E1000_MAX_RXD 256 +#define E1000_MIN_RXD 80 +#define E1000_MAX_82544_RXD 4096 + +#define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */ +#define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */ + +/* this is the size past which hardware will drop packets when setting LPE=0 */ +#define MAXIMUM_ETHERNET_VLAN_SIZE 1522 + +/* Supported Rx Buffer Sizes */ +#define E1000_RXBUFFER_128 128 /* Used for packet split */ +#define E1000_RXBUFFER_256 256 /* Used for packet split */ +#define E1000_RXBUFFER_512 512 +#define E1000_RXBUFFER_1024 1024 +#define E1000_RXBUFFER_2048 2048 +#define E1000_RXBUFFER_4096 4096 +#define E1000_RXBUFFER_8192 8192 +#define E1000_RXBUFFER_16384 16384 + +/* SmartSpeed delimiters */ +#define E1000_SMARTSPEED_DOWNSHIFT 3 +#define E1000_SMARTSPEED_MAX 15 + +/* Packet Buffer allocations */ +#define E1000_PBA_BYTES_SHIFT 0xA +#define E1000_TX_HEAD_ADDR_SHIFT 7 +#define E1000_PBA_TX_MASK 0xFFFF0000 + +/* Flow Control Watermarks */ +#define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ +#define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ + +#define E1000_FC_PAUSE_TIME 0xFFFF /* pause for the max or until send xon */ + +/* How many Tx Descriptors do we need to call netif_wake_queue ? */ +#define E1000_TX_QUEUE_WAKE 16 +/* How many Rx Buffers do we bundle into one write to the hardware ? */ +#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ + +#define AUTO_ALL_MODES 0 +#define E1000_EEPROM_82544_APM 0x0004 +#define E1000_EEPROM_APME 0x0400 + +#ifndef E1000_MASTER_SLAVE +/* Switch to override PHY master/slave setting */ +#define E1000_MASTER_SLAVE e1000_ms_hw_default +#endif + +#define E1000_MNG_VLAN_NONE (-1) + +/* wrapper around a pointer to a socket buffer, + * so a DMA handle can be stored along with the buffer */ +struct e1000_buffer { + struct sk_buff *skb; + dma_addr_t dma; + struct page *page; + unsigned long time_stamp; + u16 length; + u16 next_to_watch; + u16 mapped_as_page; +}; + +struct e1000_tx_ring { + /* pointer to the descriptor ring memory */ + void *desc; + /* physical address of the descriptor ring */ + dma_addr_t dma; + /* length of descriptor ring in bytes */ + unsigned int size; + /* number of descriptors in the ring */ + unsigned int count; + /* next descriptor to associate a buffer with */ + unsigned int next_to_use; + /* next descriptor to check for DD status bit */ + unsigned int next_to_clean; + /* array of buffer information structs */ + struct e1000_buffer *buffer_info; + + u16 tdh; + u16 tdt; + bool last_tx_tso; +}; + +struct e1000_rx_ring { + /* pointer to the descriptor ring memory */ + void *desc; + /* physical address of the descriptor ring */ + dma_addr_t dma; + /* length of descriptor ring in bytes */ + unsigned int size; + /* number of descriptors in the ring */ + unsigned int count; + /* next descriptor to associate a buffer with */ + unsigned int next_to_use; + /* next descriptor to check for DD status bit */ + unsigned int next_to_clean; + /* array of buffer information structs */ + struct e1000_buffer *buffer_info; + struct sk_buff *rx_skb_top; + + /* cpu for rx queue */ + int cpu; + + u16 rdh; + u16 rdt; +}; + +#define E1000_DESC_UNUSED(R) \ + ((((R)->next_to_clean > (R)->next_to_use) \ + ? 0 : (R)->count) + (R)->next_to_clean - (R)->next_to_use - 1) + +#define E1000_RX_DESC_EXT(R, i) \ + (&(((union e1000_rx_desc_extended *)((R).desc))[i])) +#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) +#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) +#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) +#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) + +/* board specific private data structure */ + +struct e1000_adapter { + struct timer_list tx_fifo_stall_timer; + struct timer_list watchdog_timer; + struct timer_list phy_info_timer; + struct vlan_group *vlgrp; + u16 mng_vlan_id; + u32 bd_number; + u32 rx_buffer_len; + u32 wol; + u32 smartspeed; + u32 en_mng_pt; + u16 link_speed; + u16 link_duplex; + spinlock_t stats_lock; + unsigned int total_tx_bytes; + unsigned int total_tx_packets; + unsigned int total_rx_bytes; + unsigned int total_rx_packets; + /* Interrupt Throttle Rate */ + u32 itr; + u32 itr_setting; + u16 tx_itr; + u16 rx_itr; + + struct work_struct reset_task; + u8 fc_autoneg; + + struct timer_list blink_timer; + unsigned long led_status; + + /* TX */ + struct e1000_tx_ring *tx_ring; /* One per active queue */ + unsigned int restart_queue; + unsigned long tx_queue_len; + u32 txd_cmd; + u32 tx_int_delay; + u32 tx_abs_int_delay; + u32 gotcl; + u64 gotcl_old; + u64 tpt_old; + u64 colc_old; + u32 tx_timeout_count; + u32 tx_fifo_head; + u32 tx_head_addr; + u32 tx_fifo_size; + u8 tx_timeout_factor; + atomic_t tx_fifo_stall; + bool pcix_82544; + bool detect_tx_hung; + + /* RX */ + bool (*clean_rx)(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); + void (*alloc_rx_buf)(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); + struct e1000_rx_ring *rx_ring; /* One per active queue */ + struct napi_struct napi; + + int num_tx_queues; + int num_rx_queues; + + u64 hw_csum_err; + u64 hw_csum_good; + u32 alloc_rx_buff_failed; + u32 rx_int_delay; + u32 rx_abs_int_delay; + bool rx_csum; + u32 gorcl; + u64 gorcl_old; + + /* OS defined structs */ + struct net_device *netdev; + struct pci_dev *pdev; + + /* structs defined in e1000_hw.h */ + struct e1000_hw hw; + struct e1000_hw_stats stats; + struct e1000_phy_info phy_info; + struct e1000_phy_stats phy_stats; + + u32 test_icr; + struct e1000_tx_ring test_tx_ring; + struct e1000_rx_ring test_rx_ring; + + int msg_enable; + + /* to not mess up cache alignment, always add to the bottom */ + bool tso_force; + bool smart_power_down; /* phy smart power down */ + bool quad_port_a; + unsigned long flags; + u32 eeprom_wol; + + /* for ioport free */ + int bars; + int need_ioport; + + bool discarding; +}; + +enum e1000_state_t { + __E1000_TESTING, + __E1000_RESETTING, + __E1000_DOWN +}; + +extern char e1000_driver_name[]; +extern const char e1000_driver_version[]; + +extern int e1000_up(struct e1000_adapter *adapter); +extern void e1000_down(struct e1000_adapter *adapter); +extern void e1000_reinit_locked(struct e1000_adapter *adapter); +extern void e1000_reset(struct e1000_adapter *adapter); +extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); +extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter); +extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +extern void e1000_update_stats(struct e1000_adapter *adapter); +extern void e1000_power_up_phy(struct e1000_adapter *); +extern void e1000_set_ethtool_ops(struct net_device *netdev); +extern void e1000_check_options(struct e1000_adapter *adapter); + +#endif /* _E1000_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_ethtool-2.6.31-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_ethtool-2.6.31-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,2009 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* ethtool support for e1000 */ + +#include "e1000-2.6.31-ethercat.h" +#include + +struct e1000_stats { + char stat_string[ETH_GSTRING_LEN]; + int sizeof_stat; + int stat_offset; +}; + +#define E1000_STAT(m) FIELD_SIZEOF(struct e1000_adapter, m), \ + offsetof(struct e1000_adapter, m) +static const struct e1000_stats e1000_gstrings_stats[] = { + { "rx_packets", E1000_STAT(stats.gprc) }, + { "tx_packets", E1000_STAT(stats.gptc) }, + { "rx_bytes", E1000_STAT(stats.gorcl) }, + { "tx_bytes", E1000_STAT(stats.gotcl) }, + { "rx_broadcast", E1000_STAT(stats.bprc) }, + { "tx_broadcast", E1000_STAT(stats.bptc) }, + { "rx_multicast", E1000_STAT(stats.mprc) }, + { "tx_multicast", E1000_STAT(stats.mptc) }, + { "rx_errors", E1000_STAT(stats.rxerrc) }, + { "tx_errors", E1000_STAT(stats.txerrc) }, + { "tx_dropped", E1000_STAT(net_stats.tx_dropped) }, + { "multicast", E1000_STAT(stats.mprc) }, + { "collisions", E1000_STAT(stats.colc) }, + { "rx_length_errors", E1000_STAT(stats.rlerrc) }, + { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) }, + { "rx_crc_errors", E1000_STAT(stats.crcerrs) }, + { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) }, + { "rx_no_buffer_count", E1000_STAT(stats.rnbc) }, + { "rx_missed_errors", E1000_STAT(stats.mpc) }, + { "tx_aborted_errors", E1000_STAT(stats.ecol) }, + { "tx_carrier_errors", E1000_STAT(stats.tncrs) }, + { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) }, + { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) }, + { "tx_window_errors", E1000_STAT(stats.latecol) }, + { "tx_abort_late_coll", E1000_STAT(stats.latecol) }, + { "tx_deferred_ok", E1000_STAT(stats.dc) }, + { "tx_single_coll_ok", E1000_STAT(stats.scc) }, + { "tx_multi_coll_ok", E1000_STAT(stats.mcc) }, + { "tx_timeout_count", E1000_STAT(tx_timeout_count) }, + { "tx_restart_queue", E1000_STAT(restart_queue) }, + { "rx_long_length_errors", E1000_STAT(stats.roc) }, + { "rx_short_length_errors", E1000_STAT(stats.ruc) }, + { "rx_align_errors", E1000_STAT(stats.algnerrc) }, + { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) }, + { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) }, + { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) }, + { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) }, + { "tx_flow_control_xon", E1000_STAT(stats.xontxc) }, + { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) }, + { "rx_long_byte_count", E1000_STAT(stats.gorcl) }, + { "rx_csum_offload_good", E1000_STAT(hw_csum_good) }, + { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) }, + { "rx_header_split", E1000_STAT(rx_hdr_split) }, + { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) }, + { "tx_smbus", E1000_STAT(stats.mgptc) }, + { "rx_smbus", E1000_STAT(stats.mgprc) }, + { "dropped_smbus", E1000_STAT(stats.mgpdc) }, +}; + +#define E1000_QUEUE_STATS_LEN 0 +#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats) +#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN) +static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = { + "Register test (offline)", "Eeprom test (offline)", + "Interrupt test (offline)", "Loopback test (offline)", + "Link test (on/offline)" +}; +#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test) + +static int e1000_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->media_type == e1000_media_type_copper) { + + ecmd->supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full| + SUPPORTED_Autoneg | + SUPPORTED_TP); + if (hw->phy_type == e1000_phy_ife) + ecmd->supported &= ~SUPPORTED_1000baseT_Full; + ecmd->advertising = ADVERTISED_TP; + + if (hw->autoneg == 1) { + ecmd->advertising |= ADVERTISED_Autoneg; + /* the e1000 autoneg seems to match ethtool nicely */ + ecmd->advertising |= hw->autoneg_advertised; + } + + ecmd->port = PORT_TP; + ecmd->phy_address = hw->phy_addr; + + if (hw->mac_type == e1000_82543) + ecmd->transceiver = XCVR_EXTERNAL; + else + ecmd->transceiver = XCVR_INTERNAL; + + } else { + ecmd->supported = (SUPPORTED_1000baseT_Full | + SUPPORTED_FIBRE | + SUPPORTED_Autoneg); + + ecmd->advertising = (ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg); + + ecmd->port = PORT_FIBRE; + + if (hw->mac_type >= e1000_82545) + ecmd->transceiver = XCVR_INTERNAL; + else + ecmd->transceiver = XCVR_EXTERNAL; + } + + if (er32(STATUS) & E1000_STATUS_LU) { + + e1000_get_speed_and_duplex(hw, &adapter->link_speed, + &adapter->link_duplex); + ecmd->speed = adapter->link_speed; + + /* unfortunatly FULL_DUPLEX != DUPLEX_FULL + * and HALF_DUPLEX != DUPLEX_HALF */ + + if (adapter->link_duplex == FULL_DUPLEX) + ecmd->duplex = DUPLEX_FULL; + else + ecmd->duplex = DUPLEX_HALF; + } else { + ecmd->speed = -1; + ecmd->duplex = -1; + } + + ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) || + hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE; + return 0; +} + +static int e1000_set_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + /* When SoL/IDER sessions are active, autoneg/speed/duplex + * cannot be changed */ + if (e1000_check_phy_reset_block(hw)) { + DPRINTK(DRV, ERR, "Cannot change link characteristics " + "when SoL/IDER is active.\n"); + return -EINVAL; + } + + if (adapter->ecdev) + return -EBUSY; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (ecmd->autoneg == AUTONEG_ENABLE) { + hw->autoneg = 1; + if (hw->media_type == e1000_media_type_fiber) + hw->autoneg_advertised = ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg; + else + hw->autoneg_advertised = ecmd->advertising | + ADVERTISED_TP | + ADVERTISED_Autoneg; + ecmd->advertising = hw->autoneg_advertised; + } else + if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) { + clear_bit(__E1000_RESETTING, &adapter->flags); + return -EINVAL; + } + + /* reset the link */ + + if (netif_running(adapter->netdev)) { + e1000_down(adapter); + e1000_up(adapter); + } else + e1000_reset(adapter); + + clear_bit(__E1000_RESETTING, &adapter->flags); + return 0; +} + +static void e1000_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + pause->autoneg = + (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); + + if (hw->fc == E1000_FC_RX_PAUSE) + pause->rx_pause = 1; + else if (hw->fc == E1000_FC_TX_PAUSE) + pause->tx_pause = 1; + else if (hw->fc == E1000_FC_FULL) { + pause->rx_pause = 1; + pause->tx_pause = 1; + } +} + +static int e1000_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int retval = 0; + + if (adapter->ecdev) + return -EBUSY; + + adapter->fc_autoneg = pause->autoneg; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (pause->rx_pause && pause->tx_pause) + hw->fc = E1000_FC_FULL; + else if (pause->rx_pause && !pause->tx_pause) + hw->fc = E1000_FC_RX_PAUSE; + else if (!pause->rx_pause && pause->tx_pause) + hw->fc = E1000_FC_TX_PAUSE; + else if (!pause->rx_pause && !pause->tx_pause) + hw->fc = E1000_FC_NONE; + + hw->original_fc = hw->fc; + + if (adapter->fc_autoneg == AUTONEG_ENABLE) { + if (netif_running(adapter->netdev)) { + e1000_down(adapter); + e1000_up(adapter); + } else + e1000_reset(adapter); + } else + retval = ((hw->media_type == e1000_media_type_fiber) ? + e1000_setup_link(hw) : e1000_force_mac_fc(hw)); + + clear_bit(__E1000_RESETTING, &adapter->flags); + return retval; +} + +static u32 e1000_get_rx_csum(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + return adapter->rx_csum; +} + +static int e1000_set_rx_csum(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + if (adapter->ecdev) + return -EBUSY; + + adapter->rx_csum = data; + + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + return 0; +} + +static u32 e1000_get_tx_csum(struct net_device *netdev) +{ + return (netdev->features & NETIF_F_HW_CSUM) != 0; +} + +static int e1000_set_tx_csum(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->mac_type < e1000_82543) { + if (!data) + return -EINVAL; + return 0; + } + + if (data) + netdev->features |= NETIF_F_HW_CSUM; + else + netdev->features &= ~NETIF_F_HW_CSUM; + + return 0; +} + +static int e1000_set_tso(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if ((hw->mac_type < e1000_82544) || + (hw->mac_type == e1000_82547)) + return data ? -EINVAL : 0; + + if (data) + netdev->features |= NETIF_F_TSO; + else + netdev->features &= ~NETIF_F_TSO; + + if (data && (adapter->hw.mac_type > e1000_82547_rev_2)) + netdev->features |= NETIF_F_TSO6; + else + netdev->features &= ~NETIF_F_TSO6; + + DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled"); + adapter->tso_force = true; + return 0; +} + +static u32 e1000_get_msglevel(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + return adapter->msg_enable; +} + +static void e1000_set_msglevel(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + adapter->msg_enable = data; +} + +static int e1000_get_regs_len(struct net_device *netdev) +{ +#define E1000_REGS_LEN 32 + return E1000_REGS_LEN * sizeof(u32); +} + +static void e1000_get_regs(struct net_device *netdev, struct ethtool_regs *regs, + void *p) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 *regs_buff = p; + u16 phy_data; + + memset(p, 0, E1000_REGS_LEN * sizeof(u32)); + + regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id; + + regs_buff[0] = er32(CTRL); + regs_buff[1] = er32(STATUS); + + regs_buff[2] = er32(RCTL); + regs_buff[3] = er32(RDLEN); + regs_buff[4] = er32(RDH); + regs_buff[5] = er32(RDT); + regs_buff[6] = er32(RDTR); + + regs_buff[7] = er32(TCTL); + regs_buff[8] = er32(TDLEN); + regs_buff[9] = er32(TDH); + regs_buff[10] = er32(TDT); + regs_buff[11] = er32(TIDV); + + regs_buff[12] = hw->phy_type; /* PHY type (IGP=1, M88=0) */ + if (hw->phy_type == e1000_phy_igp) { + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_A); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[13] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_B); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[14] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_C); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[15] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_D); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[16] = (u32)phy_data; /* cable length */ + regs_buff[17] = 0; /* extended 10bt distance (not needed) */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[18] = (u32)phy_data; /* cable polarity */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_PCS_INIT_REG); + e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[19] = (u32)phy_data; /* cable polarity */ + regs_buff[20] = 0; /* polarity correction enabled (always) */ + regs_buff[22] = 0; /* phy receive errors (unavailable) */ + regs_buff[23] = regs_buff[18]; /* mdix mode */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); + } else { + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + regs_buff[13] = (u32)phy_data; /* cable length */ + regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + regs_buff[17] = (u32)phy_data; /* extended 10bt distance */ + regs_buff[18] = regs_buff[13]; /* cable polarity */ + regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[20] = regs_buff[17]; /* polarity correction */ + /* phy receive errors */ + regs_buff[22] = adapter->phy_stats.receive_errors; + regs_buff[23] = regs_buff[13]; /* mdix mode */ + } + regs_buff[21] = adapter->phy_stats.idle_errors; /* phy idle errors */ + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + regs_buff[24] = (u32)phy_data; /* phy local receiver status */ + regs_buff[25] = regs_buff[24]; /* phy remote receiver status */ + if (hw->mac_type >= e1000_82540 && + hw->mac_type < e1000_82571 && + hw->media_type == e1000_media_type_copper) { + regs_buff[26] = er32(MANC); + } +} + +static int e1000_get_eeprom_len(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + return hw->eeprom.word_size * 2; +} + +static int e1000_get_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u16 *eeprom_buff; + int first_word, last_word; + int ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EINVAL; + + eeprom->magic = hw->vendor_id | (hw->device_id << 16); + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + + eeprom_buff = kmalloc(sizeof(u16) * + (last_word - first_word + 1), GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + if (hw->eeprom.type == e1000_eeprom_spi) + ret_val = e1000_read_eeprom(hw, first_word, + last_word - first_word + 1, + eeprom_buff); + else { + for (i = 0; i < last_word - first_word + 1; i++) { + ret_val = e1000_read_eeprom(hw, first_word + i, 1, + &eeprom_buff[i]); + if (ret_val) + break; + } + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), + eeprom->len); + kfree(eeprom_buff); + + return ret_val; +} + +static int e1000_set_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u16 *eeprom_buff; + void *ptr; + int max_len, first_word, last_word, ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EOPNOTSUPP; + + if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) + return -EFAULT; + + max_len = hw->eeprom.word_size * 2; + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + eeprom_buff = kmalloc(max_len, GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + ptr = (void *)eeprom_buff; + + if (eeprom->offset & 1) { + /* need read/modify/write of first changed EEPROM word */ + /* only the second byte of the word is being modified */ + ret_val = e1000_read_eeprom(hw, first_word, 1, + &eeprom_buff[0]); + ptr++; + } + if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) { + /* need read/modify/write of last changed EEPROM word */ + /* only the first byte of the word is being modified */ + ret_val = e1000_read_eeprom(hw, last_word, 1, + &eeprom_buff[last_word - first_word]); + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(ptr, bytes, eeprom->len); + + for (i = 0; i < last_word - first_word + 1; i++) + eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]); + + ret_val = e1000_write_eeprom(hw, first_word, + last_word - first_word + 1, eeprom_buff); + + /* Update the checksum over the first part of the EEPROM if needed + * and flush shadow RAM for 82573 conrollers */ + if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) || + (hw->mac_type == e1000_82573))) + e1000_update_eeprom_checksum(hw); + + kfree(eeprom_buff); + return ret_val; +} + +static void e1000_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + char firmware_version[32]; + u16 eeprom_data; + + strncpy(drvinfo->driver, e1000_driver_name, 32); + strncpy(drvinfo->version, e1000_driver_version, 32); + + /* EEPROM image version # is reported as firmware version # for + * 8257{1|2|3} controllers */ + e1000_read_eeprom(hw, 5, 1, &eeprom_data); + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + sprintf(firmware_version, "%d.%d-%d", + (eeprom_data & 0xF000) >> 12, + (eeprom_data & 0x0FF0) >> 4, + eeprom_data & 0x000F); + break; + default: + sprintf(firmware_version, "N/A"); + } + + strncpy(drvinfo->fw_version, firmware_version, 32); + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32); + drvinfo->regdump_len = e1000_get_regs_len(netdev); + drvinfo->eedump_len = e1000_get_eeprom_len(netdev); +} + +static void e1000_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + e1000_mac_type mac_type = hw->mac_type; + struct e1000_tx_ring *txdr = adapter->tx_ring; + struct e1000_rx_ring *rxdr = adapter->rx_ring; + + ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD : + E1000_MAX_82544_RXD; + ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD : + E1000_MAX_82544_TXD; + ring->rx_mini_max_pending = 0; + ring->rx_jumbo_max_pending = 0; + ring->rx_pending = rxdr->count; + ring->tx_pending = txdr->count; + ring->rx_mini_pending = 0; + ring->rx_jumbo_pending = 0; +} + +static int e1000_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + e1000_mac_type mac_type = hw->mac_type; + struct e1000_tx_ring *txdr, *tx_old; + struct e1000_rx_ring *rxdr, *rx_old; + int i, err; + + if (adapter->ecdev) + return -EBUSY; + + if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) + return -EINVAL; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (netif_running(adapter->netdev)) + e1000_down(adapter); + + tx_old = adapter->tx_ring; + rx_old = adapter->rx_ring; + + err = -ENOMEM; + txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL); + if (!txdr) + goto err_alloc_tx; + + rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL); + if (!rxdr) + goto err_alloc_rx; + + adapter->tx_ring = txdr; + adapter->rx_ring = rxdr; + + rxdr->count = max(ring->rx_pending,(u32)E1000_MIN_RXD); + rxdr->count = min(rxdr->count,(u32)(mac_type < e1000_82544 ? + E1000_MAX_RXD : E1000_MAX_82544_RXD)); + rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE); + + txdr->count = max(ring->tx_pending,(u32)E1000_MIN_TXD); + txdr->count = min(txdr->count,(u32)(mac_type < e1000_82544 ? + E1000_MAX_TXD : E1000_MAX_82544_TXD)); + txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE); + + for (i = 0; i < adapter->num_tx_queues; i++) + txdr[i].count = txdr->count; + for (i = 0; i < adapter->num_rx_queues; i++) + rxdr[i].count = rxdr->count; + + if (netif_running(adapter->netdev)) { + /* Try to get new resources before deleting old */ + err = e1000_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + err = e1000_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* save the new, restore the old in order to free it, + * then restore the new back again */ + + adapter->rx_ring = rx_old; + adapter->tx_ring = tx_old; + e1000_free_all_rx_resources(adapter); + e1000_free_all_tx_resources(adapter); + kfree(tx_old); + kfree(rx_old); + adapter->rx_ring = rxdr; + adapter->tx_ring = txdr; + err = e1000_up(adapter); + if (err) + goto err_setup; + } + + clear_bit(__E1000_RESETTING, &adapter->flags); + return 0; +err_setup_tx: + e1000_free_all_rx_resources(adapter); +err_setup_rx: + adapter->rx_ring = rx_old; + adapter->tx_ring = tx_old; + kfree(rxdr); +err_alloc_rx: + kfree(txdr); +err_alloc_tx: + e1000_up(adapter); +err_setup: + clear_bit(__E1000_RESETTING, &adapter->flags); + return err; +} + +static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + struct e1000_hw *hw = &adapter->hw; + static const u32 test[] = + {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF}; + u8 __iomem *address = hw->hw_addr + reg; + u32 read; + int i; + + for (i = 0; i < ARRAY_SIZE(test); i++) { + writel(write & test[i], address); + read = readl(address); + if (read != (write & test[i] & mask)) { + DPRINTK(DRV, ERR, "pattern test reg %04X failed: " + "got 0x%08X expected 0x%08X\n", + reg, read, (write & test[i] & mask)); + *data = reg; + return true; + } + } + return false; +} + +static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + struct e1000_hw *hw = &adapter->hw; + u8 __iomem *address = hw->hw_addr + reg; + u32 read; + + writel(write & mask, address); + read = readl(address); + if ((read & mask) != (write & mask)) { + DPRINTK(DRV, ERR, "set/check reg %04X test failed: " + "got 0x%08X expected 0x%08X\n", + reg, (read & mask), (write & mask)); + *data = reg; + return true; + } + return false; +} + +#define REG_PATTERN_TEST(reg, mask, write) \ + do { \ + if (reg_pattern_test(adapter, data, \ + (hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg, \ + mask, write)) \ + return 1; \ + } while (0) + +#define REG_SET_AND_CHECK(reg, mask, write) \ + do { \ + if (reg_set_and_check(adapter, data, \ + (hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg, \ + mask, write)) \ + return 1; \ + } while (0) + +static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) +{ + u32 value, before, after; + u32 i, toggle; + struct e1000_hw *hw = &adapter->hw; + + /* The status register is Read Only, so a write should fail. + * Some bits that get toggled are ignored. + */ + switch (hw->mac_type) { + /* there are several bits on newer hardware that are r/w */ + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + toggle = 0x7FFFF3FF; + break; + case e1000_82573: + case e1000_ich8lan: + toggle = 0x7FFFF033; + break; + default: + toggle = 0xFFFFF833; + break; + } + + before = er32(STATUS); + value = (er32(STATUS) & toggle); + ew32(STATUS, toggle); + after = er32(STATUS) & toggle; + if (value != after) { + DPRINTK(DRV, ERR, "failed STATUS register test got: " + "0x%08X expected: 0x%08X\n", after, value); + *data = 1; + return 1; + } + /* restore previous status */ + ew32(STATUS, before); + + if (hw->mac_type != e1000_ich8lan) { + REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF); + } + + REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF); + REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8); + REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF); + REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF); + + REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000); + + before = (hw->mac_type == e1000_ich8lan ? + 0x06C3B33E : 0x06DFB3FE); + REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB); + REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000); + + if (hw->mac_type >= e1000_82543) { + + REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF); + REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF); + if (hw->mac_type != e1000_ich8lan) + REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF); + REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF); + value = (hw->mac_type == e1000_ich8lan ? + E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES); + for (i = 0; i < value; i++) { + REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF, + 0xFFFFFFFF); + } + + } else { + + REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF); + REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF); + REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF); + + } + + value = (hw->mac_type == e1000_ich8lan ? + E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE); + for (i = 0; i < value; i++) + REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF); + + *data = 0; + return 0; +} + +static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + u16 temp; + u16 checksum = 0; + u16 i; + + *data = 0; + /* Read and add up the contents of the EEPROM */ + for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { + if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) { + *data = 1; + break; + } + checksum += temp; + } + + /* If Checksum is not Correct return error else test passed */ + if ((checksum != (u16)EEPROM_SUM) && !(*data)) + *data = 2; + + return *data; +} + +static irqreturn_t e1000_test_intr(int irq, void *data) +{ + struct net_device *netdev = (struct net_device *)data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + adapter->test_icr |= er32(ICR); + + return IRQ_HANDLED; +} + +static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) +{ + struct net_device *netdev = adapter->netdev; + u32 mask, i = 0; + bool shared_int = true; + u32 irq = adapter->pdev->irq; + struct e1000_hw *hw = &adapter->hw; + + *data = 0; + + /* NOTE: we don't test MSI interrupts here, yet */ + /* Hook up test interrupt handler just for this test */ + if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name, + netdev)) + shared_int = false; + else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED, + netdev->name, netdev)) { + *data = 1; + return -1; + } + DPRINTK(HW, INFO, "testing %s interrupt\n", + (shared_int ? "shared" : "unshared")); + + /* Disable all the interrupts */ + ew32(IMC, 0xFFFFFFFF); + msleep(10); + + /* Test each interrupt */ + for (; i < 10; i++) { + + if (hw->mac_type == e1000_ich8lan && i == 8) + continue; + + /* Interrupt to test */ + mask = 1 << i; + + if (!shared_int) { + /* Disable the interrupt to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMC, mask); + ew32(ICS, mask); + msleep(10); + + if (adapter->test_icr & mask) { + *data = 3; + break; + } + } + + /* Enable the interrupt to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was not posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMS, mask); + ew32(ICS, mask); + msleep(10); + + if (!(adapter->test_icr & mask)) { + *data = 4; + break; + } + + if (!shared_int) { + /* Disable the other interrupts to be reported in + * the cause register and then force the other + * interrupts and see if any get posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMC, ~mask & 0x00007FFF); + ew32(ICS, ~mask & 0x00007FFF); + msleep(10); + + if (adapter->test_icr) { + *data = 5; + break; + } + } + } + + /* Disable all the interrupts */ + ew32(IMC, 0xFFFFFFFF); + msleep(10); + + /* Unhook test interrupt handler */ + free_irq(irq, netdev); + + return *data; +} + +static void e1000_free_desc_rings(struct e1000_adapter *adapter) +{ + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + int i; + + if (txdr->desc && txdr->buffer_info) { + for (i = 0; i < txdr->count; i++) { + if (txdr->buffer_info[i].dma) + pci_unmap_single(pdev, txdr->buffer_info[i].dma, + txdr->buffer_info[i].length, + PCI_DMA_TODEVICE); + if (txdr->buffer_info[i].skb) + dev_kfree_skb(txdr->buffer_info[i].skb); + } + } + + if (rxdr->desc && rxdr->buffer_info) { + for (i = 0; i < rxdr->count; i++) { + if (rxdr->buffer_info[i].dma) + pci_unmap_single(pdev, rxdr->buffer_info[i].dma, + rxdr->buffer_info[i].length, + PCI_DMA_FROMDEVICE); + if (rxdr->buffer_info[i].skb) + dev_kfree_skb(rxdr->buffer_info[i].skb); + } + } + + if (txdr->desc) { + pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma); + txdr->desc = NULL; + } + if (rxdr->desc) { + pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma); + rxdr->desc = NULL; + } + + kfree(txdr->buffer_info); + txdr->buffer_info = NULL; + kfree(rxdr->buffer_info); + rxdr->buffer_info = NULL; + + return; +} + +static int e1000_setup_desc_rings(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + u32 rctl; + int i, ret_val; + + /* Setup Tx descriptor ring and Tx buffers */ + + if (!txdr->count) + txdr->count = E1000_DEFAULT_TXD; + + txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_buffer), + GFP_KERNEL); + if (!txdr->buffer_info) { + ret_val = 1; + goto err_nomem; + } + + txdr->size = txdr->count * sizeof(struct e1000_tx_desc); + txdr->size = ALIGN(txdr->size, 4096); + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + if (!txdr->desc) { + ret_val = 2; + goto err_nomem; + } + memset(txdr->desc, 0, txdr->size); + txdr->next_to_use = txdr->next_to_clean = 0; + + ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF)); + ew32(TDBAH, ((u64)txdr->dma >> 32)); + ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc)); + ew32(TDH, 0); + ew32(TDT, 0); + ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | + E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT | + E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT); + + for (i = 0; i < txdr->count; i++) { + struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i); + struct sk_buff *skb; + unsigned int size = 1024; + + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) { + ret_val = 3; + goto err_nomem; + } + skb_put(skb, size); + txdr->buffer_info[i].skb = skb; + txdr->buffer_info[i].length = skb->len; + txdr->buffer_info[i].dma = + pci_map_single(pdev, skb->data, skb->len, + PCI_DMA_TODEVICE); + tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma); + tx_desc->lower.data = cpu_to_le32(skb->len); + tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP | + E1000_TXD_CMD_IFCS | + E1000_TXD_CMD_RPS); + tx_desc->upper.data = 0; + } + + /* Setup Rx descriptor ring and Rx buffers */ + + if (!rxdr->count) + rxdr->count = E1000_DEFAULT_RXD; + + rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer), + GFP_KERNEL); + if (!rxdr->buffer_info) { + ret_val = 4; + goto err_nomem; + } + + rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc); + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + if (!rxdr->desc) { + ret_val = 5; + goto err_nomem; + } + memset(rxdr->desc, 0, rxdr->size); + rxdr->next_to_use = rxdr->next_to_clean = 0; + + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF)); + ew32(RDBAH, ((u64)rxdr->dma >> 32)); + ew32(RDLEN, rxdr->size); + ew32(RDH, 0); + ew32(RDT, 0); + rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 | + E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); + ew32(RCTL, rctl); + + for (i = 0; i < rxdr->count; i++) { + struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i); + struct sk_buff *skb; + + skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL); + if (!skb) { + ret_val = 6; + goto err_nomem; + } + skb_reserve(skb, NET_IP_ALIGN); + rxdr->buffer_info[i].skb = skb; + rxdr->buffer_info[i].length = E1000_RXBUFFER_2048; + rxdr->buffer_info[i].dma = + pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048, + PCI_DMA_FROMDEVICE); + rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma); + memset(skb->data, 0x00, skb->len); + } + + return 0; + +err_nomem: + e1000_free_desc_rings(adapter); + return ret_val; +} + +static void e1000_phy_disable_receiver(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* Write out to PHY registers 29 and 30 to disable the Receiver. */ + e1000_write_phy_reg(hw, 29, 0x001F); + e1000_write_phy_reg(hw, 30, 0x8FFC); + e1000_write_phy_reg(hw, 29, 0x001A); + e1000_write_phy_reg(hw, 30, 0x8FF0); +} + +static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_reg; + + /* Because we reset the PHY above, we need to re-force TX_CLK in the + * Extended PHY Specific Control Register to 25MHz clock. This + * value defaults back to a 2.5MHz clock when the PHY is reset. + */ + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); + phy_reg |= M88E1000_EPSCR_TX_CLK_25; + e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, phy_reg); + + /* In addition, because of the s/w reset above, we need to enable + * CRS on TX. This must be set for both full and half duplex + * operation. + */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); + phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + e1000_write_phy_reg(hw, + M88E1000_PHY_SPEC_CTRL, phy_reg); +} + +static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl_reg; + u16 phy_reg; + + /* Setup the Device Control Register for PHY loopback test. */ + + ctrl_reg = er32(CTRL); + ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */ + E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_1000 | /* Force Speed to 1000 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + + ew32(CTRL, ctrl_reg); + + /* Read the PHY Specific Control Register (0x10) */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); + + /* Clear Auto-Crossover bits in PHY Specific Control Register + * (bits 6:5). + */ + phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE; + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg); + + /* Perform software reset on the PHY */ + e1000_phy_reset(hw); + + /* Have to setup TX_CLK and TX_CRS after software reset */ + e1000_phy_reset_clk_and_crs(adapter); + + e1000_write_phy_reg(hw, PHY_CTRL, 0x8100); + + /* Wait for reset to complete. */ + udelay(500); + + /* Have to setup TX_CLK and TX_CRS after software reset */ + e1000_phy_reset_clk_and_crs(adapter); + + /* Write out to PHY registers 29 and 30 to disable the Receiver. */ + e1000_phy_disable_receiver(adapter); + + /* Set the loopback bit in the PHY control register. */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + phy_reg |= MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + + /* Setup TX_CLK and TX_CRS one more time. */ + e1000_phy_reset_clk_and_crs(adapter); + + /* Check Phy Configuration */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + if (phy_reg != 0x4100) + return 9; + + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); + if (phy_reg != 0x0070) + return 10; + + e1000_read_phy_reg(hw, 29, &phy_reg); + if (phy_reg != 0x001A) + return 11; + + return 0; +} + +static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl_reg = 0; + u32 stat_reg = 0; + + hw->autoneg = false; + + if (hw->phy_type == e1000_phy_m88) { + /* Auto-MDI/MDIX Off */ + e1000_write_phy_reg(hw, + M88E1000_PHY_SPEC_CTRL, 0x0808); + /* reset to update Auto-MDI/MDIX */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x9140); + /* autoneg off */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x8140); + } else if (hw->phy_type == e1000_phy_gg82563) + e1000_write_phy_reg(hw, + GG82563_PHY_KMRN_MODE_CTRL, + 0x1CC); + + ctrl_reg = er32(CTRL); + + if (hw->phy_type == e1000_phy_ife) { + /* force 100, set loopback */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x6100); + + /* Now set up the MAC to the same speed/duplex as the PHY. */ + ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ + ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_100 |/* Force Speed to 100 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + } else { + /* force 1000, set loopback */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x4140); + + /* Now set up the MAC to the same speed/duplex as the PHY. */ + ctrl_reg = er32(CTRL); + ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ + ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + } + + if (hw->media_type == e1000_media_type_copper && + hw->phy_type == e1000_phy_m88) + ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ + else { + /* Set the ILOS bit on the fiber Nic is half + * duplex link is detected. */ + stat_reg = er32(STATUS); + if ((stat_reg & E1000_STATUS_FD) == 0) + ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU); + } + + ew32(CTRL, ctrl_reg); + + /* Disable the receiver on the PHY so when a cable is plugged in, the + * PHY does not begin to autoneg when a cable is reconnected to the NIC. + */ + if (hw->phy_type == e1000_phy_m88) + e1000_phy_disable_receiver(adapter); + + udelay(500); + + return 0; +} + +static int e1000_set_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_reg = 0; + u16 count = 0; + + switch (hw->mac_type) { + case e1000_82543: + if (hw->media_type == e1000_media_type_copper) { + /* Attempt to setup Loopback mode on Non-integrated PHY. + * Some PHY registers get corrupted at random, so + * attempt this 10 times. + */ + while (e1000_nonintegrated_phy_loopback(adapter) && + count++ < 10); + if (count < 11) + return 0; + } + break; + + case e1000_82544: + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + return e1000_integrated_phy_loopback(adapter); + break; + + default: + /* Default PHY loopback work is to read the MII + * control register and assert bit 14 (loopback mode). + */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + phy_reg |= MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + return 0; + break; + } + + return 8; +} + +static int e1000_setup_loopback_test(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { + switch (hw->mac_type) { + case e1000_82545: + case e1000_82546: + case e1000_82545_rev_3: + case e1000_82546_rev_3: + return e1000_set_phy_loopback(adapter); + break; + case e1000_82571: + case e1000_82572: +#define E1000_SERDES_LB_ON 0x410 + e1000_set_phy_loopback(adapter); + ew32(SCTL, E1000_SERDES_LB_ON); + msleep(10); + return 0; + break; + default: + rctl = er32(RCTL); + rctl |= E1000_RCTL_LBM_TCVR; + ew32(RCTL, rctl); + return 0; + } + } else if (hw->media_type == e1000_media_type_copper) + return e1000_set_phy_loopback(adapter); + + return 7; +} + +static void e1000_loopback_cleanup(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + u16 phy_reg; + + rctl = er32(RCTL); + rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); + ew32(RCTL, rctl); + + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { +#define E1000_SERDES_LB_OFF 0x400 + ew32(SCTL, E1000_SERDES_LB_OFF); + msleep(10); + break; + } + /* Fall Through */ + case e1000_82545: + case e1000_82546: + case e1000_82545_rev_3: + case e1000_82546_rev_3: + default: + hw->autoneg = true; + if (hw->phy_type == e1000_phy_gg82563) + e1000_write_phy_reg(hw, + GG82563_PHY_KMRN_MODE_CTRL, + 0x180); + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + if (phy_reg & MII_CR_LOOPBACK) { + phy_reg &= ~MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + e1000_phy_reset(hw); + } + break; + } +} + +static void e1000_create_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + memset(skb->data, 0xFF, frame_size); + frame_size &= ~1; + memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); + memset(&skb->data[frame_size / 2 + 10], 0xBE, 1); + memset(&skb->data[frame_size / 2 + 12], 0xAF, 1); +} + +static int e1000_check_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + frame_size &= ~1; + if (*(skb->data + 3) == 0xFF) { + if ((*(skb->data + frame_size / 2 + 10) == 0xBE) && + (*(skb->data + frame_size / 2 + 12) == 0xAF)) { + return 0; + } + } + return 13; +} + +static int e1000_run_loopback_test(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + int i, j, k, l, lc, good_cnt, ret_val=0; + unsigned long time; + + ew32(RDT, rxdr->count - 1); + + /* Calculate the loop count based on the largest descriptor ring + * The idea is to wrap the largest ring a number of times using 64 + * send/receive pairs during each loop + */ + + if (rxdr->count <= txdr->count) + lc = ((txdr->count / 64) * 2) + 1; + else + lc = ((rxdr->count / 64) * 2) + 1; + + k = l = 0; + for (j = 0; j <= lc; j++) { /* loop count loop */ + for (i = 0; i < 64; i++) { /* send the packets */ + e1000_create_lbtest_frame(txdr->buffer_info[i].skb, + 1024); + pci_dma_sync_single_for_device(pdev, + txdr->buffer_info[k].dma, + txdr->buffer_info[k].length, + PCI_DMA_TODEVICE); + if (unlikely(++k == txdr->count)) k = 0; + } + ew32(TDT, k); + msleep(200); + time = jiffies; /* set the start time for the receive */ + good_cnt = 0; + do { /* receive the sent packets */ + pci_dma_sync_single_for_cpu(pdev, + rxdr->buffer_info[l].dma, + rxdr->buffer_info[l].length, + PCI_DMA_FROMDEVICE); + + ret_val = e1000_check_lbtest_frame( + rxdr->buffer_info[l].skb, + 1024); + if (!ret_val) + good_cnt++; + if (unlikely(++l == rxdr->count)) l = 0; + /* time + 20 msecs (200 msecs on 2.4) is more than + * enough time to complete the receives, if it's + * exceeded, break and error off + */ + } while (good_cnt < 64 && jiffies < (time + 20)); + if (good_cnt != 64) { + ret_val = 13; /* ret_val is the same as mis-compare */ + break; + } + if (jiffies >= (time + 2)) { + ret_val = 14; /* error code for time out error */ + break; + } + } /* end loop count loop */ + return ret_val; +} + +static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + + /* PHY loopback cannot be performed if SoL/IDER + * sessions are active */ + if (e1000_check_phy_reset_block(hw)) { + DPRINTK(DRV, ERR, "Cannot do PHY loopback test " + "when SoL/IDER is active.\n"); + *data = 0; + goto out; + } + + *data = e1000_setup_desc_rings(adapter); + if (*data) + goto out; + *data = e1000_setup_loopback_test(adapter); + if (*data) + goto err_loopback; + *data = e1000_run_loopback_test(adapter); + e1000_loopback_cleanup(adapter); + +err_loopback: + e1000_free_desc_rings(adapter); +out: + return *data; +} + +static int e1000_link_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + *data = 0; + if (hw->media_type == e1000_media_type_internal_serdes) { + int i = 0; + hw->serdes_link_down = true; + + /* On some blade server designs, link establishment + * could take as long as 2-3 minutes */ + do { + e1000_check_for_link(hw); + if (!hw->serdes_link_down) + return *data; + msleep(20); + } while (i++ < 3750); + + *data = 1; + } else { + e1000_check_for_link(hw); + if (hw->autoneg) /* if auto_neg is set wait for it */ + msleep(4000); + + if (!(er32(STATUS) & E1000_STATUS_LU)) { + *data = 1; + } + } + return *data; +} + +static int e1000_get_sset_count(struct net_device *netdev, int sset) +{ + switch (sset) { + case ETH_SS_TEST: + return E1000_TEST_LEN; + case ETH_SS_STATS: + return E1000_STATS_LEN; + default: + return -EOPNOTSUPP; + } +} + +static void e1000_diag_test(struct net_device *netdev, + struct ethtool_test *eth_test, u64 *data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + bool if_running; + + if (adapter->ecdev) + return; + + if_running = netif_running(netdev); + + set_bit(__E1000_TESTING, &adapter->flags); + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + /* Offline tests */ + + /* save speed, duplex, autoneg settings */ + u16 autoneg_advertised = hw->autoneg_advertised; + u8 forced_speed_duplex = hw->forced_speed_duplex; + u8 autoneg = hw->autoneg; + + DPRINTK(HW, INFO, "offline testing starting\n"); + + /* Link test performed before hardware reset so autoneg doesn't + * interfere with test result */ + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + if (if_running) + /* indicate we're in test mode */ + dev_close(netdev); + else + e1000_reset(adapter); + + if (e1000_reg_test(adapter, &data[0])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + if (e1000_eeprom_test(adapter, &data[1])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + if (e1000_intr_test(adapter, &data[2])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + /* make sure the phy is powered up */ + e1000_power_up_phy(adapter); + if (e1000_loopback_test(adapter, &data[3])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* restore speed, duplex, autoneg settings */ + hw->autoneg_advertised = autoneg_advertised; + hw->forced_speed_duplex = forced_speed_duplex; + hw->autoneg = autoneg; + + e1000_reset(adapter); + clear_bit(__E1000_TESTING, &adapter->flags); + if (if_running) + dev_open(netdev); + } else { + DPRINTK(HW, INFO, "online testing starting\n"); + /* Online tests */ + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* Online tests aren't run; pass by default */ + data[0] = 0; + data[1] = 0; + data[2] = 0; + data[3] = 0; + + clear_bit(__E1000_TESTING, &adapter->flags); + } + msleep_interruptible(4 * 1000); +} + +static int e1000_wol_exclusion(struct e1000_adapter *adapter, + struct ethtool_wolinfo *wol) +{ + struct e1000_hw *hw = &adapter->hw; + int retval = 1; /* fail by default */ + + switch (hw->device_id) { + case E1000_DEV_ID_82542: + case E1000_DEV_ID_82543GC_FIBER: + case E1000_DEV_ID_82543GC_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER: + case E1000_DEV_ID_82546GB_PCIE: + case E1000_DEV_ID_82571EB_SERDES_QUAD: + /* these don't support WoL at all */ + wol->supported = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82571EB_FIBER: + case E1000_DEV_ID_82571EB_SERDES: + case E1000_DEV_ID_82571EB_COPPER: + /* Wake events not supported on port B */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) { + wol->supported = 0; + break; + } + /* return success for non excluded adapter ports */ + retval = 0; + break; + case E1000_DEV_ID_82571EB_QUAD_COPPER: + case E1000_DEV_ID_82571EB_QUAD_FIBER: + case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE: + case E1000_DEV_ID_82571PT_QUAD_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* quad port adapters only support WoL on port A */ + if (!adapter->quad_port_a) { + wol->supported = 0; + break; + } + /* return success for non excluded adapter ports */ + retval = 0; + break; + default: + /* dual port cards only support WoL on port A from now on + * unless it was enabled in the eeprom for port B + * so exclude FUNC_1 ports from having WoL enabled */ + if (er32(STATUS) & E1000_STATUS_FUNC_1 && + !adapter->eeprom_wol) { + wol->supported = 0; + break; + } + + retval = 0; + } + + return retval; +} + +static void e1000_get_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + wol->supported = WAKE_UCAST | WAKE_MCAST | + WAKE_BCAST | WAKE_MAGIC; + wol->wolopts = 0; + + /* this function will set ->supported = 0 and return 1 if wol is not + * supported by this hardware */ + if (e1000_wol_exclusion(adapter, wol) || + !device_can_wakeup(&adapter->pdev->dev)) + return; + + /* apply any specific unsupported masks here */ + switch (hw->device_id) { + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* KSP3 does not suppport UCAST wake-ups */ + wol->supported &= ~WAKE_UCAST; + + if (adapter->wol & E1000_WUFC_EX) + DPRINTK(DRV, ERR, "Interface does not support " + "directed (unicast) frame wake-up packets\n"); + break; + default: + break; + } + + if (adapter->wol & E1000_WUFC_EX) + wol->wolopts |= WAKE_UCAST; + if (adapter->wol & E1000_WUFC_MC) + wol->wolopts |= WAKE_MCAST; + if (adapter->wol & E1000_WUFC_BC) + wol->wolopts |= WAKE_BCAST; + if (adapter->wol & E1000_WUFC_MAG) + wol->wolopts |= WAKE_MAGIC; + + return; +} + +static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) + return -EOPNOTSUPP; + + if (e1000_wol_exclusion(adapter, wol) || + !device_can_wakeup(&adapter->pdev->dev)) + return wol->wolopts ? -EOPNOTSUPP : 0; + + switch (hw->device_id) { + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + if (wol->wolopts & WAKE_UCAST) { + DPRINTK(DRV, ERR, "Interface does not support " + "directed (unicast) frame wake-up packets\n"); + return -EOPNOTSUPP; + } + break; + default: + break; + } + + /* these settings will always override what we currently have */ + adapter->wol = 0; + + if (wol->wolopts & WAKE_UCAST) + adapter->wol |= E1000_WUFC_EX; + if (wol->wolopts & WAKE_MCAST) + adapter->wol |= E1000_WUFC_MC; + if (wol->wolopts & WAKE_BCAST) + adapter->wol |= E1000_WUFC_BC; + if (wol->wolopts & WAKE_MAGIC) + adapter->wol |= E1000_WUFC_MAG; + + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + + return 0; +} + +/* toggle LED 4 times per second = 2 "blinks" per second */ +#define E1000_ID_INTERVAL (HZ/4) + +/* bit defines for adapter->led_status */ +#define E1000_LED_ON 0 + +static void e1000_led_blink_callback(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *) data; + struct e1000_hw *hw = &adapter->hw; + + if (test_and_change_bit(E1000_LED_ON, &adapter->led_status)) + e1000_led_off(hw); + else + e1000_led_on(hw); + + mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL); +} + +static int e1000_phys_id(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (!data) + data = INT_MAX; + + if (hw->mac_type < e1000_82571) { + if (!adapter->blink_timer.function) { + init_timer(&adapter->blink_timer); + adapter->blink_timer.function = e1000_led_blink_callback; + adapter->blink_timer.data = (unsigned long)adapter; + } + e1000_setup_led(hw); + mod_timer(&adapter->blink_timer, jiffies); + msleep_interruptible(data * 1000); + del_timer_sync(&adapter->blink_timer); + } else if (hw->phy_type == e1000_phy_ife) { + if (!adapter->blink_timer.function) { + init_timer(&adapter->blink_timer); + adapter->blink_timer.function = e1000_led_blink_callback; + adapter->blink_timer.data = (unsigned long)adapter; + } + mod_timer(&adapter->blink_timer, jiffies); + msleep_interruptible(data * 1000); + del_timer_sync(&adapter->blink_timer); + e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0); + } else { + e1000_blink_led_start(hw); + msleep_interruptible(data * 1000); + } + + e1000_led_off(hw); + clear_bit(E1000_LED_ON, &adapter->led_status); + e1000_cleanup_led(hw); + + return 0; +} + +static int e1000_nway_reset(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + if (adapter->ecdev) + return -EBUSY; + + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + return 0; +} + +static void e1000_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + int i; + + e1000_update_stats(adapter); + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset; + data[i] = (e1000_gstrings_stats[i].sizeof_stat == + sizeof(u64)) ? *(u64 *)p : *(u32 *)p; + } +/* BUG_ON(i != E1000_STATS_LEN); */ +} + +static void e1000_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + u8 *p = data; + int i; + + switch (stringset) { + case ETH_SS_TEST: + memcpy(data, *e1000_gstrings_test, + sizeof(e1000_gstrings_test)); + break; + case ETH_SS_STATS: + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + memcpy(p, e1000_gstrings_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } +/* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */ + break; + } +} + +static const struct ethtool_ops e1000_ethtool_ops = { + .get_settings = e1000_get_settings, + .set_settings = e1000_set_settings, + .get_drvinfo = e1000_get_drvinfo, + .get_regs_len = e1000_get_regs_len, + .get_regs = e1000_get_regs, + .get_wol = e1000_get_wol, + .set_wol = e1000_set_wol, + .get_msglevel = e1000_get_msglevel, + .set_msglevel = e1000_set_msglevel, + .nway_reset = e1000_nway_reset, + .get_link = ethtool_op_get_link, + .get_eeprom_len = e1000_get_eeprom_len, + .get_eeprom = e1000_get_eeprom, + .set_eeprom = e1000_set_eeprom, + .get_ringparam = e1000_get_ringparam, + .set_ringparam = e1000_set_ringparam, + .get_pauseparam = e1000_get_pauseparam, + .set_pauseparam = e1000_set_pauseparam, + .get_rx_csum = e1000_get_rx_csum, + .set_rx_csum = e1000_set_rx_csum, + .get_tx_csum = e1000_get_tx_csum, + .set_tx_csum = e1000_set_tx_csum, + .set_sg = ethtool_op_set_sg, + .set_tso = e1000_set_tso, + .self_test = e1000_diag_test, + .get_strings = e1000_get_strings, + .phys_id = e1000_phys_id, + .get_ethtool_stats = e1000_get_ethtool_stats, + .get_sset_count = e1000_get_sset_count, +}; + +void e1000_set_ethtool_ops(struct net_device *netdev) +{ + SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops); +} diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_ethtool-2.6.31-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_ethtool-2.6.31-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,1987 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* ethtool support for e1000 */ + +#include "e1000.h" +#include + +struct e1000_stats { + char stat_string[ETH_GSTRING_LEN]; + int sizeof_stat; + int stat_offset; +}; + +#define E1000_STAT(m) FIELD_SIZEOF(struct e1000_adapter, m), \ + offsetof(struct e1000_adapter, m) +static const struct e1000_stats e1000_gstrings_stats[] = { + { "rx_packets", E1000_STAT(stats.gprc) }, + { "tx_packets", E1000_STAT(stats.gptc) }, + { "rx_bytes", E1000_STAT(stats.gorcl) }, + { "tx_bytes", E1000_STAT(stats.gotcl) }, + { "rx_broadcast", E1000_STAT(stats.bprc) }, + { "tx_broadcast", E1000_STAT(stats.bptc) }, + { "rx_multicast", E1000_STAT(stats.mprc) }, + { "tx_multicast", E1000_STAT(stats.mptc) }, + { "rx_errors", E1000_STAT(stats.rxerrc) }, + { "tx_errors", E1000_STAT(stats.txerrc) }, + { "tx_dropped", E1000_STAT(net_stats.tx_dropped) }, + { "multicast", E1000_STAT(stats.mprc) }, + { "collisions", E1000_STAT(stats.colc) }, + { "rx_length_errors", E1000_STAT(stats.rlerrc) }, + { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) }, + { "rx_crc_errors", E1000_STAT(stats.crcerrs) }, + { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) }, + { "rx_no_buffer_count", E1000_STAT(stats.rnbc) }, + { "rx_missed_errors", E1000_STAT(stats.mpc) }, + { "tx_aborted_errors", E1000_STAT(stats.ecol) }, + { "tx_carrier_errors", E1000_STAT(stats.tncrs) }, + { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) }, + { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) }, + { "tx_window_errors", E1000_STAT(stats.latecol) }, + { "tx_abort_late_coll", E1000_STAT(stats.latecol) }, + { "tx_deferred_ok", E1000_STAT(stats.dc) }, + { "tx_single_coll_ok", E1000_STAT(stats.scc) }, + { "tx_multi_coll_ok", E1000_STAT(stats.mcc) }, + { "tx_timeout_count", E1000_STAT(tx_timeout_count) }, + { "tx_restart_queue", E1000_STAT(restart_queue) }, + { "rx_long_length_errors", E1000_STAT(stats.roc) }, + { "rx_short_length_errors", E1000_STAT(stats.ruc) }, + { "rx_align_errors", E1000_STAT(stats.algnerrc) }, + { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) }, + { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) }, + { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) }, + { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) }, + { "tx_flow_control_xon", E1000_STAT(stats.xontxc) }, + { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) }, + { "rx_long_byte_count", E1000_STAT(stats.gorcl) }, + { "rx_csum_offload_good", E1000_STAT(hw_csum_good) }, + { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) }, + { "rx_header_split", E1000_STAT(rx_hdr_split) }, + { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) }, + { "tx_smbus", E1000_STAT(stats.mgptc) }, + { "rx_smbus", E1000_STAT(stats.mgprc) }, + { "dropped_smbus", E1000_STAT(stats.mgpdc) }, +}; + +#define E1000_QUEUE_STATS_LEN 0 +#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats) +#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN) +static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = { + "Register test (offline)", "Eeprom test (offline)", + "Interrupt test (offline)", "Loopback test (offline)", + "Link test (on/offline)" +}; +#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test) + +static int e1000_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->media_type == e1000_media_type_copper) { + + ecmd->supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full| + SUPPORTED_Autoneg | + SUPPORTED_TP); + if (hw->phy_type == e1000_phy_ife) + ecmd->supported &= ~SUPPORTED_1000baseT_Full; + ecmd->advertising = ADVERTISED_TP; + + if (hw->autoneg == 1) { + ecmd->advertising |= ADVERTISED_Autoneg; + /* the e1000 autoneg seems to match ethtool nicely */ + ecmd->advertising |= hw->autoneg_advertised; + } + + ecmd->port = PORT_TP; + ecmd->phy_address = hw->phy_addr; + + if (hw->mac_type == e1000_82543) + ecmd->transceiver = XCVR_EXTERNAL; + else + ecmd->transceiver = XCVR_INTERNAL; + + } else { + ecmd->supported = (SUPPORTED_1000baseT_Full | + SUPPORTED_FIBRE | + SUPPORTED_Autoneg); + + ecmd->advertising = (ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg); + + ecmd->port = PORT_FIBRE; + + if (hw->mac_type >= e1000_82545) + ecmd->transceiver = XCVR_INTERNAL; + else + ecmd->transceiver = XCVR_EXTERNAL; + } + + if (er32(STATUS) & E1000_STATUS_LU) { + + e1000_get_speed_and_duplex(hw, &adapter->link_speed, + &adapter->link_duplex); + ecmd->speed = adapter->link_speed; + + /* unfortunatly FULL_DUPLEX != DUPLEX_FULL + * and HALF_DUPLEX != DUPLEX_HALF */ + + if (adapter->link_duplex == FULL_DUPLEX) + ecmd->duplex = DUPLEX_FULL; + else + ecmd->duplex = DUPLEX_HALF; + } else { + ecmd->speed = -1; + ecmd->duplex = -1; + } + + ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) || + hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE; + return 0; +} + +static int e1000_set_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + /* When SoL/IDER sessions are active, autoneg/speed/duplex + * cannot be changed */ + if (e1000_check_phy_reset_block(hw)) { + DPRINTK(DRV, ERR, "Cannot change link characteristics " + "when SoL/IDER is active.\n"); + return -EINVAL; + } + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (ecmd->autoneg == AUTONEG_ENABLE) { + hw->autoneg = 1; + if (hw->media_type == e1000_media_type_fiber) + hw->autoneg_advertised = ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg; + else + hw->autoneg_advertised = ecmd->advertising | + ADVERTISED_TP | + ADVERTISED_Autoneg; + ecmd->advertising = hw->autoneg_advertised; + } else + if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) { + clear_bit(__E1000_RESETTING, &adapter->flags); + return -EINVAL; + } + + /* reset the link */ + + if (netif_running(adapter->netdev)) { + e1000_down(adapter); + e1000_up(adapter); + } else + e1000_reset(adapter); + + clear_bit(__E1000_RESETTING, &adapter->flags); + return 0; +} + +static void e1000_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + pause->autoneg = + (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); + + if (hw->fc == E1000_FC_RX_PAUSE) + pause->rx_pause = 1; + else if (hw->fc == E1000_FC_TX_PAUSE) + pause->tx_pause = 1; + else if (hw->fc == E1000_FC_FULL) { + pause->rx_pause = 1; + pause->tx_pause = 1; + } +} + +static int e1000_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int retval = 0; + + adapter->fc_autoneg = pause->autoneg; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (pause->rx_pause && pause->tx_pause) + hw->fc = E1000_FC_FULL; + else if (pause->rx_pause && !pause->tx_pause) + hw->fc = E1000_FC_RX_PAUSE; + else if (!pause->rx_pause && pause->tx_pause) + hw->fc = E1000_FC_TX_PAUSE; + else if (!pause->rx_pause && !pause->tx_pause) + hw->fc = E1000_FC_NONE; + + hw->original_fc = hw->fc; + + if (adapter->fc_autoneg == AUTONEG_ENABLE) { + if (netif_running(adapter->netdev)) { + e1000_down(adapter); + e1000_up(adapter); + } else + e1000_reset(adapter); + } else + retval = ((hw->media_type == e1000_media_type_fiber) ? + e1000_setup_link(hw) : e1000_force_mac_fc(hw)); + + clear_bit(__E1000_RESETTING, &adapter->flags); + return retval; +} + +static u32 e1000_get_rx_csum(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + return adapter->rx_csum; +} + +static int e1000_set_rx_csum(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + adapter->rx_csum = data; + + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + return 0; +} + +static u32 e1000_get_tx_csum(struct net_device *netdev) +{ + return (netdev->features & NETIF_F_HW_CSUM) != 0; +} + +static int e1000_set_tx_csum(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->mac_type < e1000_82543) { + if (!data) + return -EINVAL; + return 0; + } + + if (data) + netdev->features |= NETIF_F_HW_CSUM; + else + netdev->features &= ~NETIF_F_HW_CSUM; + + return 0; +} + +static int e1000_set_tso(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if ((hw->mac_type < e1000_82544) || + (hw->mac_type == e1000_82547)) + return data ? -EINVAL : 0; + + if (data) + netdev->features |= NETIF_F_TSO; + else + netdev->features &= ~NETIF_F_TSO; + + if (data && (adapter->hw.mac_type > e1000_82547_rev_2)) + netdev->features |= NETIF_F_TSO6; + else + netdev->features &= ~NETIF_F_TSO6; + + DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled"); + adapter->tso_force = true; + return 0; +} + +static u32 e1000_get_msglevel(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + return adapter->msg_enable; +} + +static void e1000_set_msglevel(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + adapter->msg_enable = data; +} + +static int e1000_get_regs_len(struct net_device *netdev) +{ +#define E1000_REGS_LEN 32 + return E1000_REGS_LEN * sizeof(u32); +} + +static void e1000_get_regs(struct net_device *netdev, struct ethtool_regs *regs, + void *p) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 *regs_buff = p; + u16 phy_data; + + memset(p, 0, E1000_REGS_LEN * sizeof(u32)); + + regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id; + + regs_buff[0] = er32(CTRL); + regs_buff[1] = er32(STATUS); + + regs_buff[2] = er32(RCTL); + regs_buff[3] = er32(RDLEN); + regs_buff[4] = er32(RDH); + regs_buff[5] = er32(RDT); + regs_buff[6] = er32(RDTR); + + regs_buff[7] = er32(TCTL); + regs_buff[8] = er32(TDLEN); + regs_buff[9] = er32(TDH); + regs_buff[10] = er32(TDT); + regs_buff[11] = er32(TIDV); + + regs_buff[12] = hw->phy_type; /* PHY type (IGP=1, M88=0) */ + if (hw->phy_type == e1000_phy_igp) { + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_A); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[13] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_B); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[14] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_C); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[15] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_D); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[16] = (u32)phy_data; /* cable length */ + regs_buff[17] = 0; /* extended 10bt distance (not needed) */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[18] = (u32)phy_data; /* cable polarity */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_PCS_INIT_REG); + e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[19] = (u32)phy_data; /* cable polarity */ + regs_buff[20] = 0; /* polarity correction enabled (always) */ + regs_buff[22] = 0; /* phy receive errors (unavailable) */ + regs_buff[23] = regs_buff[18]; /* mdix mode */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); + } else { + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + regs_buff[13] = (u32)phy_data; /* cable length */ + regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + regs_buff[17] = (u32)phy_data; /* extended 10bt distance */ + regs_buff[18] = regs_buff[13]; /* cable polarity */ + regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[20] = regs_buff[17]; /* polarity correction */ + /* phy receive errors */ + regs_buff[22] = adapter->phy_stats.receive_errors; + regs_buff[23] = regs_buff[13]; /* mdix mode */ + } + regs_buff[21] = adapter->phy_stats.idle_errors; /* phy idle errors */ + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + regs_buff[24] = (u32)phy_data; /* phy local receiver status */ + regs_buff[25] = regs_buff[24]; /* phy remote receiver status */ + if (hw->mac_type >= e1000_82540 && + hw->mac_type < e1000_82571 && + hw->media_type == e1000_media_type_copper) { + regs_buff[26] = er32(MANC); + } +} + +static int e1000_get_eeprom_len(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + return hw->eeprom.word_size * 2; +} + +static int e1000_get_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u16 *eeprom_buff; + int first_word, last_word; + int ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EINVAL; + + eeprom->magic = hw->vendor_id | (hw->device_id << 16); + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + + eeprom_buff = kmalloc(sizeof(u16) * + (last_word - first_word + 1), GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + if (hw->eeprom.type == e1000_eeprom_spi) + ret_val = e1000_read_eeprom(hw, first_word, + last_word - first_word + 1, + eeprom_buff); + else { + for (i = 0; i < last_word - first_word + 1; i++) { + ret_val = e1000_read_eeprom(hw, first_word + i, 1, + &eeprom_buff[i]); + if (ret_val) + break; + } + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), + eeprom->len); + kfree(eeprom_buff); + + return ret_val; +} + +static int e1000_set_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u16 *eeprom_buff; + void *ptr; + int max_len, first_word, last_word, ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EOPNOTSUPP; + + if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) + return -EFAULT; + + max_len = hw->eeprom.word_size * 2; + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + eeprom_buff = kmalloc(max_len, GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + ptr = (void *)eeprom_buff; + + if (eeprom->offset & 1) { + /* need read/modify/write of first changed EEPROM word */ + /* only the second byte of the word is being modified */ + ret_val = e1000_read_eeprom(hw, first_word, 1, + &eeprom_buff[0]); + ptr++; + } + if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) { + /* need read/modify/write of last changed EEPROM word */ + /* only the first byte of the word is being modified */ + ret_val = e1000_read_eeprom(hw, last_word, 1, + &eeprom_buff[last_word - first_word]); + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(ptr, bytes, eeprom->len); + + for (i = 0; i < last_word - first_word + 1; i++) + eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]); + + ret_val = e1000_write_eeprom(hw, first_word, + last_word - first_word + 1, eeprom_buff); + + /* Update the checksum over the first part of the EEPROM if needed + * and flush shadow RAM for 82573 conrollers */ + if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) || + (hw->mac_type == e1000_82573))) + e1000_update_eeprom_checksum(hw); + + kfree(eeprom_buff); + return ret_val; +} + +static void e1000_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + char firmware_version[32]; + u16 eeprom_data; + + strncpy(drvinfo->driver, e1000_driver_name, 32); + strncpy(drvinfo->version, e1000_driver_version, 32); + + /* EEPROM image version # is reported as firmware version # for + * 8257{1|2|3} controllers */ + e1000_read_eeprom(hw, 5, 1, &eeprom_data); + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + sprintf(firmware_version, "%d.%d-%d", + (eeprom_data & 0xF000) >> 12, + (eeprom_data & 0x0FF0) >> 4, + eeprom_data & 0x000F); + break; + default: + sprintf(firmware_version, "N/A"); + } + + strncpy(drvinfo->fw_version, firmware_version, 32); + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32); + drvinfo->regdump_len = e1000_get_regs_len(netdev); + drvinfo->eedump_len = e1000_get_eeprom_len(netdev); +} + +static void e1000_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + e1000_mac_type mac_type = hw->mac_type; + struct e1000_tx_ring *txdr = adapter->tx_ring; + struct e1000_rx_ring *rxdr = adapter->rx_ring; + + ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD : + E1000_MAX_82544_RXD; + ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD : + E1000_MAX_82544_TXD; + ring->rx_mini_max_pending = 0; + ring->rx_jumbo_max_pending = 0; + ring->rx_pending = rxdr->count; + ring->tx_pending = txdr->count; + ring->rx_mini_pending = 0; + ring->rx_jumbo_pending = 0; +} + +static int e1000_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + e1000_mac_type mac_type = hw->mac_type; + struct e1000_tx_ring *txdr, *tx_old; + struct e1000_rx_ring *rxdr, *rx_old; + int i, err; + + if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) + return -EINVAL; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (netif_running(adapter->netdev)) + e1000_down(adapter); + + tx_old = adapter->tx_ring; + rx_old = adapter->rx_ring; + + err = -ENOMEM; + txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL); + if (!txdr) + goto err_alloc_tx; + + rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL); + if (!rxdr) + goto err_alloc_rx; + + adapter->tx_ring = txdr; + adapter->rx_ring = rxdr; + + rxdr->count = max(ring->rx_pending,(u32)E1000_MIN_RXD); + rxdr->count = min(rxdr->count,(u32)(mac_type < e1000_82544 ? + E1000_MAX_RXD : E1000_MAX_82544_RXD)); + rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE); + + txdr->count = max(ring->tx_pending,(u32)E1000_MIN_TXD); + txdr->count = min(txdr->count,(u32)(mac_type < e1000_82544 ? + E1000_MAX_TXD : E1000_MAX_82544_TXD)); + txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE); + + for (i = 0; i < adapter->num_tx_queues; i++) + txdr[i].count = txdr->count; + for (i = 0; i < adapter->num_rx_queues; i++) + rxdr[i].count = rxdr->count; + + if (netif_running(adapter->netdev)) { + /* Try to get new resources before deleting old */ + err = e1000_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + err = e1000_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* save the new, restore the old in order to free it, + * then restore the new back again */ + + adapter->rx_ring = rx_old; + adapter->tx_ring = tx_old; + e1000_free_all_rx_resources(adapter); + e1000_free_all_tx_resources(adapter); + kfree(tx_old); + kfree(rx_old); + adapter->rx_ring = rxdr; + adapter->tx_ring = txdr; + err = e1000_up(adapter); + if (err) + goto err_setup; + } + + clear_bit(__E1000_RESETTING, &adapter->flags); + return 0; +err_setup_tx: + e1000_free_all_rx_resources(adapter); +err_setup_rx: + adapter->rx_ring = rx_old; + adapter->tx_ring = tx_old; + kfree(rxdr); +err_alloc_rx: + kfree(txdr); +err_alloc_tx: + e1000_up(adapter); +err_setup: + clear_bit(__E1000_RESETTING, &adapter->flags); + return err; +} + +static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + struct e1000_hw *hw = &adapter->hw; + static const u32 test[] = + {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF}; + u8 __iomem *address = hw->hw_addr + reg; + u32 read; + int i; + + for (i = 0; i < ARRAY_SIZE(test); i++) { + writel(write & test[i], address); + read = readl(address); + if (read != (write & test[i] & mask)) { + DPRINTK(DRV, ERR, "pattern test reg %04X failed: " + "got 0x%08X expected 0x%08X\n", + reg, read, (write & test[i] & mask)); + *data = reg; + return true; + } + } + return false; +} + +static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + struct e1000_hw *hw = &adapter->hw; + u8 __iomem *address = hw->hw_addr + reg; + u32 read; + + writel(write & mask, address); + read = readl(address); + if ((read & mask) != (write & mask)) { + DPRINTK(DRV, ERR, "set/check reg %04X test failed: " + "got 0x%08X expected 0x%08X\n", + reg, (read & mask), (write & mask)); + *data = reg; + return true; + } + return false; +} + +#define REG_PATTERN_TEST(reg, mask, write) \ + do { \ + if (reg_pattern_test(adapter, data, \ + (hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg, \ + mask, write)) \ + return 1; \ + } while (0) + +#define REG_SET_AND_CHECK(reg, mask, write) \ + do { \ + if (reg_set_and_check(adapter, data, \ + (hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg, \ + mask, write)) \ + return 1; \ + } while (0) + +static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) +{ + u32 value, before, after; + u32 i, toggle; + struct e1000_hw *hw = &adapter->hw; + + /* The status register is Read Only, so a write should fail. + * Some bits that get toggled are ignored. + */ + switch (hw->mac_type) { + /* there are several bits on newer hardware that are r/w */ + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + toggle = 0x7FFFF3FF; + break; + case e1000_82573: + case e1000_ich8lan: + toggle = 0x7FFFF033; + break; + default: + toggle = 0xFFFFF833; + break; + } + + before = er32(STATUS); + value = (er32(STATUS) & toggle); + ew32(STATUS, toggle); + after = er32(STATUS) & toggle; + if (value != after) { + DPRINTK(DRV, ERR, "failed STATUS register test got: " + "0x%08X expected: 0x%08X\n", after, value); + *data = 1; + return 1; + } + /* restore previous status */ + ew32(STATUS, before); + + if (hw->mac_type != e1000_ich8lan) { + REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF); + } + + REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF); + REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8); + REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF); + REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF); + + REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000); + + before = (hw->mac_type == e1000_ich8lan ? + 0x06C3B33E : 0x06DFB3FE); + REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB); + REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000); + + if (hw->mac_type >= e1000_82543) { + + REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF); + REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF); + if (hw->mac_type != e1000_ich8lan) + REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF); + REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF); + value = (hw->mac_type == e1000_ich8lan ? + E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES); + for (i = 0; i < value; i++) { + REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF, + 0xFFFFFFFF); + } + + } else { + + REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF); + REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF); + REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF); + + } + + value = (hw->mac_type == e1000_ich8lan ? + E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE); + for (i = 0; i < value; i++) + REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF); + + *data = 0; + return 0; +} + +static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + u16 temp; + u16 checksum = 0; + u16 i; + + *data = 0; + /* Read and add up the contents of the EEPROM */ + for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { + if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) { + *data = 1; + break; + } + checksum += temp; + } + + /* If Checksum is not Correct return error else test passed */ + if ((checksum != (u16)EEPROM_SUM) && !(*data)) + *data = 2; + + return *data; +} + +static irqreturn_t e1000_test_intr(int irq, void *data) +{ + struct net_device *netdev = (struct net_device *)data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + adapter->test_icr |= er32(ICR); + + return IRQ_HANDLED; +} + +static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) +{ + struct net_device *netdev = adapter->netdev; + u32 mask, i = 0; + bool shared_int = true; + u32 irq = adapter->pdev->irq; + struct e1000_hw *hw = &adapter->hw; + + *data = 0; + + /* NOTE: we don't test MSI interrupts here, yet */ + /* Hook up test interrupt handler just for this test */ + if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name, + netdev)) + shared_int = false; + else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED, + netdev->name, netdev)) { + *data = 1; + return -1; + } + DPRINTK(HW, INFO, "testing %s interrupt\n", + (shared_int ? "shared" : "unshared")); + + /* Disable all the interrupts */ + ew32(IMC, 0xFFFFFFFF); + msleep(10); + + /* Test each interrupt */ + for (; i < 10; i++) { + + if (hw->mac_type == e1000_ich8lan && i == 8) + continue; + + /* Interrupt to test */ + mask = 1 << i; + + if (!shared_int) { + /* Disable the interrupt to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMC, mask); + ew32(ICS, mask); + msleep(10); + + if (adapter->test_icr & mask) { + *data = 3; + break; + } + } + + /* Enable the interrupt to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was not posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMS, mask); + ew32(ICS, mask); + msleep(10); + + if (!(adapter->test_icr & mask)) { + *data = 4; + break; + } + + if (!shared_int) { + /* Disable the other interrupts to be reported in + * the cause register and then force the other + * interrupts and see if any get posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMC, ~mask & 0x00007FFF); + ew32(ICS, ~mask & 0x00007FFF); + msleep(10); + + if (adapter->test_icr) { + *data = 5; + break; + } + } + } + + /* Disable all the interrupts */ + ew32(IMC, 0xFFFFFFFF); + msleep(10); + + /* Unhook test interrupt handler */ + free_irq(irq, netdev); + + return *data; +} + +static void e1000_free_desc_rings(struct e1000_adapter *adapter) +{ + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + int i; + + if (txdr->desc && txdr->buffer_info) { + for (i = 0; i < txdr->count; i++) { + if (txdr->buffer_info[i].dma) + pci_unmap_single(pdev, txdr->buffer_info[i].dma, + txdr->buffer_info[i].length, + PCI_DMA_TODEVICE); + if (txdr->buffer_info[i].skb) + dev_kfree_skb(txdr->buffer_info[i].skb); + } + } + + if (rxdr->desc && rxdr->buffer_info) { + for (i = 0; i < rxdr->count; i++) { + if (rxdr->buffer_info[i].dma) + pci_unmap_single(pdev, rxdr->buffer_info[i].dma, + rxdr->buffer_info[i].length, + PCI_DMA_FROMDEVICE); + if (rxdr->buffer_info[i].skb) + dev_kfree_skb(rxdr->buffer_info[i].skb); + } + } + + if (txdr->desc) { + pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma); + txdr->desc = NULL; + } + if (rxdr->desc) { + pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma); + rxdr->desc = NULL; + } + + kfree(txdr->buffer_info); + txdr->buffer_info = NULL; + kfree(rxdr->buffer_info); + rxdr->buffer_info = NULL; + + return; +} + +static int e1000_setup_desc_rings(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + u32 rctl; + int i, ret_val; + + /* Setup Tx descriptor ring and Tx buffers */ + + if (!txdr->count) + txdr->count = E1000_DEFAULT_TXD; + + txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_buffer), + GFP_KERNEL); + if (!txdr->buffer_info) { + ret_val = 1; + goto err_nomem; + } + + txdr->size = txdr->count * sizeof(struct e1000_tx_desc); + txdr->size = ALIGN(txdr->size, 4096); + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + if (!txdr->desc) { + ret_val = 2; + goto err_nomem; + } + memset(txdr->desc, 0, txdr->size); + txdr->next_to_use = txdr->next_to_clean = 0; + + ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF)); + ew32(TDBAH, ((u64)txdr->dma >> 32)); + ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc)); + ew32(TDH, 0); + ew32(TDT, 0); + ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | + E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT | + E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT); + + for (i = 0; i < txdr->count; i++) { + struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i); + struct sk_buff *skb; + unsigned int size = 1024; + + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) { + ret_val = 3; + goto err_nomem; + } + skb_put(skb, size); + txdr->buffer_info[i].skb = skb; + txdr->buffer_info[i].length = skb->len; + txdr->buffer_info[i].dma = + pci_map_single(pdev, skb->data, skb->len, + PCI_DMA_TODEVICE); + tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma); + tx_desc->lower.data = cpu_to_le32(skb->len); + tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP | + E1000_TXD_CMD_IFCS | + E1000_TXD_CMD_RPS); + tx_desc->upper.data = 0; + } + + /* Setup Rx descriptor ring and Rx buffers */ + + if (!rxdr->count) + rxdr->count = E1000_DEFAULT_RXD; + + rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer), + GFP_KERNEL); + if (!rxdr->buffer_info) { + ret_val = 4; + goto err_nomem; + } + + rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc); + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + if (!rxdr->desc) { + ret_val = 5; + goto err_nomem; + } + memset(rxdr->desc, 0, rxdr->size); + rxdr->next_to_use = rxdr->next_to_clean = 0; + + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF)); + ew32(RDBAH, ((u64)rxdr->dma >> 32)); + ew32(RDLEN, rxdr->size); + ew32(RDH, 0); + ew32(RDT, 0); + rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 | + E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); + ew32(RCTL, rctl); + + for (i = 0; i < rxdr->count; i++) { + struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i); + struct sk_buff *skb; + + skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL); + if (!skb) { + ret_val = 6; + goto err_nomem; + } + skb_reserve(skb, NET_IP_ALIGN); + rxdr->buffer_info[i].skb = skb; + rxdr->buffer_info[i].length = E1000_RXBUFFER_2048; + rxdr->buffer_info[i].dma = + pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048, + PCI_DMA_FROMDEVICE); + rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma); + memset(skb->data, 0x00, skb->len); + } + + return 0; + +err_nomem: + e1000_free_desc_rings(adapter); + return ret_val; +} + +static void e1000_phy_disable_receiver(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* Write out to PHY registers 29 and 30 to disable the Receiver. */ + e1000_write_phy_reg(hw, 29, 0x001F); + e1000_write_phy_reg(hw, 30, 0x8FFC); + e1000_write_phy_reg(hw, 29, 0x001A); + e1000_write_phy_reg(hw, 30, 0x8FF0); +} + +static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_reg; + + /* Because we reset the PHY above, we need to re-force TX_CLK in the + * Extended PHY Specific Control Register to 25MHz clock. This + * value defaults back to a 2.5MHz clock when the PHY is reset. + */ + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); + phy_reg |= M88E1000_EPSCR_TX_CLK_25; + e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, phy_reg); + + /* In addition, because of the s/w reset above, we need to enable + * CRS on TX. This must be set for both full and half duplex + * operation. + */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); + phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + e1000_write_phy_reg(hw, + M88E1000_PHY_SPEC_CTRL, phy_reg); +} + +static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl_reg; + u16 phy_reg; + + /* Setup the Device Control Register for PHY loopback test. */ + + ctrl_reg = er32(CTRL); + ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */ + E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_1000 | /* Force Speed to 1000 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + + ew32(CTRL, ctrl_reg); + + /* Read the PHY Specific Control Register (0x10) */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); + + /* Clear Auto-Crossover bits in PHY Specific Control Register + * (bits 6:5). + */ + phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE; + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg); + + /* Perform software reset on the PHY */ + e1000_phy_reset(hw); + + /* Have to setup TX_CLK and TX_CRS after software reset */ + e1000_phy_reset_clk_and_crs(adapter); + + e1000_write_phy_reg(hw, PHY_CTRL, 0x8100); + + /* Wait for reset to complete. */ + udelay(500); + + /* Have to setup TX_CLK and TX_CRS after software reset */ + e1000_phy_reset_clk_and_crs(adapter); + + /* Write out to PHY registers 29 and 30 to disable the Receiver. */ + e1000_phy_disable_receiver(adapter); + + /* Set the loopback bit in the PHY control register. */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + phy_reg |= MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + + /* Setup TX_CLK and TX_CRS one more time. */ + e1000_phy_reset_clk_and_crs(adapter); + + /* Check Phy Configuration */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + if (phy_reg != 0x4100) + return 9; + + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); + if (phy_reg != 0x0070) + return 10; + + e1000_read_phy_reg(hw, 29, &phy_reg); + if (phy_reg != 0x001A) + return 11; + + return 0; +} + +static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl_reg = 0; + u32 stat_reg = 0; + + hw->autoneg = false; + + if (hw->phy_type == e1000_phy_m88) { + /* Auto-MDI/MDIX Off */ + e1000_write_phy_reg(hw, + M88E1000_PHY_SPEC_CTRL, 0x0808); + /* reset to update Auto-MDI/MDIX */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x9140); + /* autoneg off */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x8140); + } else if (hw->phy_type == e1000_phy_gg82563) + e1000_write_phy_reg(hw, + GG82563_PHY_KMRN_MODE_CTRL, + 0x1CC); + + ctrl_reg = er32(CTRL); + + if (hw->phy_type == e1000_phy_ife) { + /* force 100, set loopback */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x6100); + + /* Now set up the MAC to the same speed/duplex as the PHY. */ + ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ + ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_100 |/* Force Speed to 100 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + } else { + /* force 1000, set loopback */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x4140); + + /* Now set up the MAC to the same speed/duplex as the PHY. */ + ctrl_reg = er32(CTRL); + ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ + ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + } + + if (hw->media_type == e1000_media_type_copper && + hw->phy_type == e1000_phy_m88) + ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ + else { + /* Set the ILOS bit on the fiber Nic is half + * duplex link is detected. */ + stat_reg = er32(STATUS); + if ((stat_reg & E1000_STATUS_FD) == 0) + ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU); + } + + ew32(CTRL, ctrl_reg); + + /* Disable the receiver on the PHY so when a cable is plugged in, the + * PHY does not begin to autoneg when a cable is reconnected to the NIC. + */ + if (hw->phy_type == e1000_phy_m88) + e1000_phy_disable_receiver(adapter); + + udelay(500); + + return 0; +} + +static int e1000_set_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_reg = 0; + u16 count = 0; + + switch (hw->mac_type) { + case e1000_82543: + if (hw->media_type == e1000_media_type_copper) { + /* Attempt to setup Loopback mode on Non-integrated PHY. + * Some PHY registers get corrupted at random, so + * attempt this 10 times. + */ + while (e1000_nonintegrated_phy_loopback(adapter) && + count++ < 10); + if (count < 11) + return 0; + } + break; + + case e1000_82544: + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + return e1000_integrated_phy_loopback(adapter); + break; + + default: + /* Default PHY loopback work is to read the MII + * control register and assert bit 14 (loopback mode). + */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + phy_reg |= MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + return 0; + break; + } + + return 8; +} + +static int e1000_setup_loopback_test(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { + switch (hw->mac_type) { + case e1000_82545: + case e1000_82546: + case e1000_82545_rev_3: + case e1000_82546_rev_3: + return e1000_set_phy_loopback(adapter); + break; + case e1000_82571: + case e1000_82572: +#define E1000_SERDES_LB_ON 0x410 + e1000_set_phy_loopback(adapter); + ew32(SCTL, E1000_SERDES_LB_ON); + msleep(10); + return 0; + break; + default: + rctl = er32(RCTL); + rctl |= E1000_RCTL_LBM_TCVR; + ew32(RCTL, rctl); + return 0; + } + } else if (hw->media_type == e1000_media_type_copper) + return e1000_set_phy_loopback(adapter); + + return 7; +} + +static void e1000_loopback_cleanup(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + u16 phy_reg; + + rctl = er32(RCTL); + rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); + ew32(RCTL, rctl); + + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { +#define E1000_SERDES_LB_OFF 0x400 + ew32(SCTL, E1000_SERDES_LB_OFF); + msleep(10); + break; + } + /* Fall Through */ + case e1000_82545: + case e1000_82546: + case e1000_82545_rev_3: + case e1000_82546_rev_3: + default: + hw->autoneg = true; + if (hw->phy_type == e1000_phy_gg82563) + e1000_write_phy_reg(hw, + GG82563_PHY_KMRN_MODE_CTRL, + 0x180); + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + if (phy_reg & MII_CR_LOOPBACK) { + phy_reg &= ~MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + e1000_phy_reset(hw); + } + break; + } +} + +static void e1000_create_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + memset(skb->data, 0xFF, frame_size); + frame_size &= ~1; + memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); + memset(&skb->data[frame_size / 2 + 10], 0xBE, 1); + memset(&skb->data[frame_size / 2 + 12], 0xAF, 1); +} + +static int e1000_check_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + frame_size &= ~1; + if (*(skb->data + 3) == 0xFF) { + if ((*(skb->data + frame_size / 2 + 10) == 0xBE) && + (*(skb->data + frame_size / 2 + 12) == 0xAF)) { + return 0; + } + } + return 13; +} + +static int e1000_run_loopback_test(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + int i, j, k, l, lc, good_cnt, ret_val=0; + unsigned long time; + + ew32(RDT, rxdr->count - 1); + + /* Calculate the loop count based on the largest descriptor ring + * The idea is to wrap the largest ring a number of times using 64 + * send/receive pairs during each loop + */ + + if (rxdr->count <= txdr->count) + lc = ((txdr->count / 64) * 2) + 1; + else + lc = ((rxdr->count / 64) * 2) + 1; + + k = l = 0; + for (j = 0; j <= lc; j++) { /* loop count loop */ + for (i = 0; i < 64; i++) { /* send the packets */ + e1000_create_lbtest_frame(txdr->buffer_info[i].skb, + 1024); + pci_dma_sync_single_for_device(pdev, + txdr->buffer_info[k].dma, + txdr->buffer_info[k].length, + PCI_DMA_TODEVICE); + if (unlikely(++k == txdr->count)) k = 0; + } + ew32(TDT, k); + msleep(200); + time = jiffies; /* set the start time for the receive */ + good_cnt = 0; + do { /* receive the sent packets */ + pci_dma_sync_single_for_cpu(pdev, + rxdr->buffer_info[l].dma, + rxdr->buffer_info[l].length, + PCI_DMA_FROMDEVICE); + + ret_val = e1000_check_lbtest_frame( + rxdr->buffer_info[l].skb, + 1024); + if (!ret_val) + good_cnt++; + if (unlikely(++l == rxdr->count)) l = 0; + /* time + 20 msecs (200 msecs on 2.4) is more than + * enough time to complete the receives, if it's + * exceeded, break and error off + */ + } while (good_cnt < 64 && jiffies < (time + 20)); + if (good_cnt != 64) { + ret_val = 13; /* ret_val is the same as mis-compare */ + break; + } + if (jiffies >= (time + 2)) { + ret_val = 14; /* error code for time out error */ + break; + } + } /* end loop count loop */ + return ret_val; +} + +static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + + /* PHY loopback cannot be performed if SoL/IDER + * sessions are active */ + if (e1000_check_phy_reset_block(hw)) { + DPRINTK(DRV, ERR, "Cannot do PHY loopback test " + "when SoL/IDER is active.\n"); + *data = 0; + goto out; + } + + *data = e1000_setup_desc_rings(adapter); + if (*data) + goto out; + *data = e1000_setup_loopback_test(adapter); + if (*data) + goto err_loopback; + *data = e1000_run_loopback_test(adapter); + e1000_loopback_cleanup(adapter); + +err_loopback: + e1000_free_desc_rings(adapter); +out: + return *data; +} + +static int e1000_link_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + *data = 0; + if (hw->media_type == e1000_media_type_internal_serdes) { + int i = 0; + hw->serdes_link_down = true; + + /* On some blade server designs, link establishment + * could take as long as 2-3 minutes */ + do { + e1000_check_for_link(hw); + if (!hw->serdes_link_down) + return *data; + msleep(20); + } while (i++ < 3750); + + *data = 1; + } else { + e1000_check_for_link(hw); + if (hw->autoneg) /* if auto_neg is set wait for it */ + msleep(4000); + + if (!(er32(STATUS) & E1000_STATUS_LU)) { + *data = 1; + } + } + return *data; +} + +static int e1000_get_sset_count(struct net_device *netdev, int sset) +{ + switch (sset) { + case ETH_SS_TEST: + return E1000_TEST_LEN; + case ETH_SS_STATS: + return E1000_STATS_LEN; + default: + return -EOPNOTSUPP; + } +} + +static void e1000_diag_test(struct net_device *netdev, + struct ethtool_test *eth_test, u64 *data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + bool if_running = netif_running(netdev); + + set_bit(__E1000_TESTING, &adapter->flags); + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + /* Offline tests */ + + /* save speed, duplex, autoneg settings */ + u16 autoneg_advertised = hw->autoneg_advertised; + u8 forced_speed_duplex = hw->forced_speed_duplex; + u8 autoneg = hw->autoneg; + + DPRINTK(HW, INFO, "offline testing starting\n"); + + /* Link test performed before hardware reset so autoneg doesn't + * interfere with test result */ + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + if (if_running) + /* indicate we're in test mode */ + dev_close(netdev); + else + e1000_reset(adapter); + + if (e1000_reg_test(adapter, &data[0])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + if (e1000_eeprom_test(adapter, &data[1])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + if (e1000_intr_test(adapter, &data[2])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + /* make sure the phy is powered up */ + e1000_power_up_phy(adapter); + if (e1000_loopback_test(adapter, &data[3])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* restore speed, duplex, autoneg settings */ + hw->autoneg_advertised = autoneg_advertised; + hw->forced_speed_duplex = forced_speed_duplex; + hw->autoneg = autoneg; + + e1000_reset(adapter); + clear_bit(__E1000_TESTING, &adapter->flags); + if (if_running) + dev_open(netdev); + } else { + DPRINTK(HW, INFO, "online testing starting\n"); + /* Online tests */ + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* Online tests aren't run; pass by default */ + data[0] = 0; + data[1] = 0; + data[2] = 0; + data[3] = 0; + + clear_bit(__E1000_TESTING, &adapter->flags); + } + msleep_interruptible(4 * 1000); +} + +static int e1000_wol_exclusion(struct e1000_adapter *adapter, + struct ethtool_wolinfo *wol) +{ + struct e1000_hw *hw = &adapter->hw; + int retval = 1; /* fail by default */ + + switch (hw->device_id) { + case E1000_DEV_ID_82542: + case E1000_DEV_ID_82543GC_FIBER: + case E1000_DEV_ID_82543GC_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER: + case E1000_DEV_ID_82546GB_PCIE: + case E1000_DEV_ID_82571EB_SERDES_QUAD: + /* these don't support WoL at all */ + wol->supported = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82571EB_FIBER: + case E1000_DEV_ID_82571EB_SERDES: + case E1000_DEV_ID_82571EB_COPPER: + /* Wake events not supported on port B */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) { + wol->supported = 0; + break; + } + /* return success for non excluded adapter ports */ + retval = 0; + break; + case E1000_DEV_ID_82571EB_QUAD_COPPER: + case E1000_DEV_ID_82571EB_QUAD_FIBER: + case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE: + case E1000_DEV_ID_82571PT_QUAD_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* quad port adapters only support WoL on port A */ + if (!adapter->quad_port_a) { + wol->supported = 0; + break; + } + /* return success for non excluded adapter ports */ + retval = 0; + break; + default: + /* dual port cards only support WoL on port A from now on + * unless it was enabled in the eeprom for port B + * so exclude FUNC_1 ports from having WoL enabled */ + if (er32(STATUS) & E1000_STATUS_FUNC_1 && + !adapter->eeprom_wol) { + wol->supported = 0; + break; + } + + retval = 0; + } + + return retval; +} + +static void e1000_get_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + wol->supported = WAKE_UCAST | WAKE_MCAST | + WAKE_BCAST | WAKE_MAGIC; + wol->wolopts = 0; + + /* this function will set ->supported = 0 and return 1 if wol is not + * supported by this hardware */ + if (e1000_wol_exclusion(adapter, wol) || + !device_can_wakeup(&adapter->pdev->dev)) + return; + + /* apply any specific unsupported masks here */ + switch (hw->device_id) { + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* KSP3 does not suppport UCAST wake-ups */ + wol->supported &= ~WAKE_UCAST; + + if (adapter->wol & E1000_WUFC_EX) + DPRINTK(DRV, ERR, "Interface does not support " + "directed (unicast) frame wake-up packets\n"); + break; + default: + break; + } + + if (adapter->wol & E1000_WUFC_EX) + wol->wolopts |= WAKE_UCAST; + if (adapter->wol & E1000_WUFC_MC) + wol->wolopts |= WAKE_MCAST; + if (adapter->wol & E1000_WUFC_BC) + wol->wolopts |= WAKE_BCAST; + if (adapter->wol & E1000_WUFC_MAG) + wol->wolopts |= WAKE_MAGIC; + + return; +} + +static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) + return -EOPNOTSUPP; + + if (e1000_wol_exclusion(adapter, wol) || + !device_can_wakeup(&adapter->pdev->dev)) + return wol->wolopts ? -EOPNOTSUPP : 0; + + switch (hw->device_id) { + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + if (wol->wolopts & WAKE_UCAST) { + DPRINTK(DRV, ERR, "Interface does not support " + "directed (unicast) frame wake-up packets\n"); + return -EOPNOTSUPP; + } + break; + default: + break; + } + + /* these settings will always override what we currently have */ + adapter->wol = 0; + + if (wol->wolopts & WAKE_UCAST) + adapter->wol |= E1000_WUFC_EX; + if (wol->wolopts & WAKE_MCAST) + adapter->wol |= E1000_WUFC_MC; + if (wol->wolopts & WAKE_BCAST) + adapter->wol |= E1000_WUFC_BC; + if (wol->wolopts & WAKE_MAGIC) + adapter->wol |= E1000_WUFC_MAG; + + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + + return 0; +} + +/* toggle LED 4 times per second = 2 "blinks" per second */ +#define E1000_ID_INTERVAL (HZ/4) + +/* bit defines for adapter->led_status */ +#define E1000_LED_ON 0 + +static void e1000_led_blink_callback(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *) data; + struct e1000_hw *hw = &adapter->hw; + + if (test_and_change_bit(E1000_LED_ON, &adapter->led_status)) + e1000_led_off(hw); + else + e1000_led_on(hw); + + mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL); +} + +static int e1000_phys_id(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (!data) + data = INT_MAX; + + if (hw->mac_type < e1000_82571) { + if (!adapter->blink_timer.function) { + init_timer(&adapter->blink_timer); + adapter->blink_timer.function = e1000_led_blink_callback; + adapter->blink_timer.data = (unsigned long)adapter; + } + e1000_setup_led(hw); + mod_timer(&adapter->blink_timer, jiffies); + msleep_interruptible(data * 1000); + del_timer_sync(&adapter->blink_timer); + } else if (hw->phy_type == e1000_phy_ife) { + if (!adapter->blink_timer.function) { + init_timer(&adapter->blink_timer); + adapter->blink_timer.function = e1000_led_blink_callback; + adapter->blink_timer.data = (unsigned long)adapter; + } + mod_timer(&adapter->blink_timer, jiffies); + msleep_interruptible(data * 1000); + del_timer_sync(&adapter->blink_timer); + e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0); + } else { + e1000_blink_led_start(hw); + msleep_interruptible(data * 1000); + } + + e1000_led_off(hw); + clear_bit(E1000_LED_ON, &adapter->led_status); + e1000_cleanup_led(hw); + + return 0; +} + +static int e1000_nway_reset(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + return 0; +} + +static void e1000_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + int i; + + e1000_update_stats(adapter); + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset; + data[i] = (e1000_gstrings_stats[i].sizeof_stat == + sizeof(u64)) ? *(u64 *)p : *(u32 *)p; + } +/* BUG_ON(i != E1000_STATS_LEN); */ +} + +static void e1000_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + u8 *p = data; + int i; + + switch (stringset) { + case ETH_SS_TEST: + memcpy(data, *e1000_gstrings_test, + sizeof(e1000_gstrings_test)); + break; + case ETH_SS_STATS: + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + memcpy(p, e1000_gstrings_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } +/* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */ + break; + } +} + +static const struct ethtool_ops e1000_ethtool_ops = { + .get_settings = e1000_get_settings, + .set_settings = e1000_set_settings, + .get_drvinfo = e1000_get_drvinfo, + .get_regs_len = e1000_get_regs_len, + .get_regs = e1000_get_regs, + .get_wol = e1000_get_wol, + .set_wol = e1000_set_wol, + .get_msglevel = e1000_get_msglevel, + .set_msglevel = e1000_set_msglevel, + .nway_reset = e1000_nway_reset, + .get_link = ethtool_op_get_link, + .get_eeprom_len = e1000_get_eeprom_len, + .get_eeprom = e1000_get_eeprom, + .set_eeprom = e1000_set_eeprom, + .get_ringparam = e1000_get_ringparam, + .set_ringparam = e1000_set_ringparam, + .get_pauseparam = e1000_get_pauseparam, + .set_pauseparam = e1000_set_pauseparam, + .get_rx_csum = e1000_get_rx_csum, + .set_rx_csum = e1000_set_rx_csum, + .get_tx_csum = e1000_get_tx_csum, + .set_tx_csum = e1000_set_tx_csum, + .set_sg = ethtool_op_set_sg, + .set_tso = e1000_set_tso, + .self_test = e1000_diag_test, + .get_strings = e1000_get_strings, + .phys_id = e1000_phys_id, + .get_ethtool_stats = e1000_get_ethtool_stats, + .get_sset_count = e1000_get_sset_count, +}; + +void e1000_set_ethtool_ops(struct net_device *netdev) +{ + SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops); +} diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_ethtool-2.6.33-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_ethtool-2.6.33-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,1943 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* ethtool support for e1000 */ + +#include "e1000-2.6.33-ethercat.h" +#include + +enum {NETDEV_STATS, E1000_STATS}; + +struct e1000_stats { + char stat_string[ETH_GSTRING_LEN]; + int type; + int sizeof_stat; + int stat_offset; +}; + +#define E1000_STAT(m) E1000_STATS, \ + sizeof(((struct e1000_adapter *)0)->m), \ + offsetof(struct e1000_adapter, m) +#define E1000_NETDEV_STAT(m) NETDEV_STATS, \ + sizeof(((struct net_device *)0)->m), \ + offsetof(struct net_device, m) + +static const struct e1000_stats e1000_gstrings_stats[] = { + { "rx_packets", E1000_STAT(stats.gprc) }, + { "tx_packets", E1000_STAT(stats.gptc) }, + { "rx_bytes", E1000_STAT(stats.gorcl) }, + { "tx_bytes", E1000_STAT(stats.gotcl) }, + { "rx_broadcast", E1000_STAT(stats.bprc) }, + { "tx_broadcast", E1000_STAT(stats.bptc) }, + { "rx_multicast", E1000_STAT(stats.mprc) }, + { "tx_multicast", E1000_STAT(stats.mptc) }, + { "rx_errors", E1000_STAT(stats.rxerrc) }, + { "tx_errors", E1000_STAT(stats.txerrc) }, + { "tx_dropped", E1000_NETDEV_STAT(stats.tx_dropped) }, + { "multicast", E1000_STAT(stats.mprc) }, + { "collisions", E1000_STAT(stats.colc) }, + { "rx_length_errors", E1000_STAT(stats.rlerrc) }, + { "rx_over_errors", E1000_NETDEV_STAT(stats.rx_over_errors) }, + { "rx_crc_errors", E1000_STAT(stats.crcerrs) }, + { "rx_frame_errors", E1000_NETDEV_STAT(stats.rx_frame_errors) }, + { "rx_no_buffer_count", E1000_STAT(stats.rnbc) }, + { "rx_missed_errors", E1000_STAT(stats.mpc) }, + { "tx_aborted_errors", E1000_STAT(stats.ecol) }, + { "tx_carrier_errors", E1000_STAT(stats.tncrs) }, + { "tx_fifo_errors", E1000_NETDEV_STAT(stats.tx_fifo_errors) }, + { "tx_heartbeat_errors", E1000_NETDEV_STAT(stats.tx_heartbeat_errors) }, + { "tx_window_errors", E1000_STAT(stats.latecol) }, + { "tx_abort_late_coll", E1000_STAT(stats.latecol) }, + { "tx_deferred_ok", E1000_STAT(stats.dc) }, + { "tx_single_coll_ok", E1000_STAT(stats.scc) }, + { "tx_multi_coll_ok", E1000_STAT(stats.mcc) }, + { "tx_timeout_count", E1000_STAT(tx_timeout_count) }, + { "tx_restart_queue", E1000_STAT(restart_queue) }, + { "rx_long_length_errors", E1000_STAT(stats.roc) }, + { "rx_short_length_errors", E1000_STAT(stats.ruc) }, + { "rx_align_errors", E1000_STAT(stats.algnerrc) }, + { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) }, + { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) }, + { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) }, + { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) }, + { "tx_flow_control_xon", E1000_STAT(stats.xontxc) }, + { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) }, + { "rx_long_byte_count", E1000_STAT(stats.gorcl) }, + { "rx_csum_offload_good", E1000_STAT(hw_csum_good) }, + { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) }, + { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) }, + { "tx_smbus", E1000_STAT(stats.mgptc) }, + { "rx_smbus", E1000_STAT(stats.mgprc) }, + { "dropped_smbus", E1000_STAT(stats.mgpdc) }, +}; + +#define E1000_QUEUE_STATS_LEN 0 +#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats) +#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN) +static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = { + "Register test (offline)", "Eeprom test (offline)", + "Interrupt test (offline)", "Loopback test (offline)", + "Link test (on/offline)" +}; +#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test) + +static int e1000_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->media_type == e1000_media_type_copper) { + + ecmd->supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full| + SUPPORTED_Autoneg | + SUPPORTED_TP); + ecmd->advertising = ADVERTISED_TP; + + if (hw->autoneg == 1) { + ecmd->advertising |= ADVERTISED_Autoneg; + /* the e1000 autoneg seems to match ethtool nicely */ + ecmd->advertising |= hw->autoneg_advertised; + } + + ecmd->port = PORT_TP; + ecmd->phy_address = hw->phy_addr; + + if (hw->mac_type == e1000_82543) + ecmd->transceiver = XCVR_EXTERNAL; + else + ecmd->transceiver = XCVR_INTERNAL; + + } else { + ecmd->supported = (SUPPORTED_1000baseT_Full | + SUPPORTED_FIBRE | + SUPPORTED_Autoneg); + + ecmd->advertising = (ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg); + + ecmd->port = PORT_FIBRE; + + if (hw->mac_type >= e1000_82545) + ecmd->transceiver = XCVR_INTERNAL; + else + ecmd->transceiver = XCVR_EXTERNAL; + } + + if (er32(STATUS) & E1000_STATUS_LU) { + + e1000_get_speed_and_duplex(hw, &adapter->link_speed, + &adapter->link_duplex); + ecmd->speed = adapter->link_speed; + + /* unfortunatly FULL_DUPLEX != DUPLEX_FULL + * and HALF_DUPLEX != DUPLEX_HALF */ + + if (adapter->link_duplex == FULL_DUPLEX) + ecmd->duplex = DUPLEX_FULL; + else + ecmd->duplex = DUPLEX_HALF; + } else { + ecmd->speed = -1; + ecmd->duplex = -1; + } + + ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) || + hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE; + return 0; +} + +static int e1000_set_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (adapter->ecdev) + return -EBUSY; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (ecmd->autoneg == AUTONEG_ENABLE) { + hw->autoneg = 1; + if (hw->media_type == e1000_media_type_fiber) + hw->autoneg_advertised = ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg; + else + hw->autoneg_advertised = ecmd->advertising | + ADVERTISED_TP | + ADVERTISED_Autoneg; + ecmd->advertising = hw->autoneg_advertised; + } else + if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) { + clear_bit(__E1000_RESETTING, &adapter->flags); + return -EINVAL; + } + + /* reset the link */ + + if (netif_running(adapter->netdev)) { + e1000_down(adapter); + e1000_up(adapter); + } else + e1000_reset(adapter); + + clear_bit(__E1000_RESETTING, &adapter->flags); + return 0; +} + +static void e1000_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + pause->autoneg = + (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); + + if (hw->fc == E1000_FC_RX_PAUSE) + pause->rx_pause = 1; + else if (hw->fc == E1000_FC_TX_PAUSE) + pause->tx_pause = 1; + else if (hw->fc == E1000_FC_FULL) { + pause->rx_pause = 1; + pause->tx_pause = 1; + } +} + +static int e1000_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int retval = 0; + + if (adapter->ecdev) + return -EBUSY; + + adapter->fc_autoneg = pause->autoneg; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (pause->rx_pause && pause->tx_pause) + hw->fc = E1000_FC_FULL; + else if (pause->rx_pause && !pause->tx_pause) + hw->fc = E1000_FC_RX_PAUSE; + else if (!pause->rx_pause && pause->tx_pause) + hw->fc = E1000_FC_TX_PAUSE; + else if (!pause->rx_pause && !pause->tx_pause) + hw->fc = E1000_FC_NONE; + + hw->original_fc = hw->fc; + + if (adapter->fc_autoneg == AUTONEG_ENABLE) { + if (netif_running(adapter->netdev)) { + e1000_down(adapter); + e1000_up(adapter); + } else + e1000_reset(adapter); + } else + retval = ((hw->media_type == e1000_media_type_fiber) ? + e1000_setup_link(hw) : e1000_force_mac_fc(hw)); + + clear_bit(__E1000_RESETTING, &adapter->flags); + return retval; +} + +static u32 e1000_get_rx_csum(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + return adapter->rx_csum; +} + +static int e1000_set_rx_csum(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + if (adapter->ecdev) + return -EBUSY; + + adapter->rx_csum = data; + + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + return 0; +} + +static u32 e1000_get_tx_csum(struct net_device *netdev) +{ + return (netdev->features & NETIF_F_HW_CSUM) != 0; +} + +static int e1000_set_tx_csum(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->mac_type < e1000_82543) { + if (!data) + return -EINVAL; + return 0; + } + + if (data) + netdev->features |= NETIF_F_HW_CSUM; + else + netdev->features &= ~NETIF_F_HW_CSUM; + + return 0; +} + +static int e1000_set_tso(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if ((hw->mac_type < e1000_82544) || + (hw->mac_type == e1000_82547)) + return data ? -EINVAL : 0; + + if (data) + netdev->features |= NETIF_F_TSO; + else + netdev->features &= ~NETIF_F_TSO; + + netdev->features &= ~NETIF_F_TSO6; + + DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled"); + adapter->tso_force = true; + return 0; +} + +static u32 e1000_get_msglevel(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + return adapter->msg_enable; +} + +static void e1000_set_msglevel(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + adapter->msg_enable = data; +} + +static int e1000_get_regs_len(struct net_device *netdev) +{ +#define E1000_REGS_LEN 32 + return E1000_REGS_LEN * sizeof(u32); +} + +static void e1000_get_regs(struct net_device *netdev, struct ethtool_regs *regs, + void *p) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 *regs_buff = p; + u16 phy_data; + + memset(p, 0, E1000_REGS_LEN * sizeof(u32)); + + regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id; + + regs_buff[0] = er32(CTRL); + regs_buff[1] = er32(STATUS); + + regs_buff[2] = er32(RCTL); + regs_buff[3] = er32(RDLEN); + regs_buff[4] = er32(RDH); + regs_buff[5] = er32(RDT); + regs_buff[6] = er32(RDTR); + + regs_buff[7] = er32(TCTL); + regs_buff[8] = er32(TDLEN); + regs_buff[9] = er32(TDH); + regs_buff[10] = er32(TDT); + regs_buff[11] = er32(TIDV); + + regs_buff[12] = hw->phy_type; /* PHY type (IGP=1, M88=0) */ + if (hw->phy_type == e1000_phy_igp) { + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_A); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[13] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_B); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[14] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_C); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[15] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_D); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[16] = (u32)phy_data; /* cable length */ + regs_buff[17] = 0; /* extended 10bt distance (not needed) */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[18] = (u32)phy_data; /* cable polarity */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_PCS_INIT_REG); + e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[19] = (u32)phy_data; /* cable polarity */ + regs_buff[20] = 0; /* polarity correction enabled (always) */ + regs_buff[22] = 0; /* phy receive errors (unavailable) */ + regs_buff[23] = regs_buff[18]; /* mdix mode */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); + } else { + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + regs_buff[13] = (u32)phy_data; /* cable length */ + regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + regs_buff[17] = (u32)phy_data; /* extended 10bt distance */ + regs_buff[18] = regs_buff[13]; /* cable polarity */ + regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[20] = regs_buff[17]; /* polarity correction */ + /* phy receive errors */ + regs_buff[22] = adapter->phy_stats.receive_errors; + regs_buff[23] = regs_buff[13]; /* mdix mode */ + } + regs_buff[21] = adapter->phy_stats.idle_errors; /* phy idle errors */ + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + regs_buff[24] = (u32)phy_data; /* phy local receiver status */ + regs_buff[25] = regs_buff[24]; /* phy remote receiver status */ + if (hw->mac_type >= e1000_82540 && + hw->media_type == e1000_media_type_copper) { + regs_buff[26] = er32(MANC); + } +} + +static int e1000_get_eeprom_len(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + return hw->eeprom.word_size * 2; +} + +static int e1000_get_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u16 *eeprom_buff; + int first_word, last_word; + int ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EINVAL; + + eeprom->magic = hw->vendor_id | (hw->device_id << 16); + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + + eeprom_buff = kmalloc(sizeof(u16) * + (last_word - first_word + 1), GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + if (hw->eeprom.type == e1000_eeprom_spi) + ret_val = e1000_read_eeprom(hw, first_word, + last_word - first_word + 1, + eeprom_buff); + else { + for (i = 0; i < last_word - first_word + 1; i++) { + ret_val = e1000_read_eeprom(hw, first_word + i, 1, + &eeprom_buff[i]); + if (ret_val) + break; + } + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), + eeprom->len); + kfree(eeprom_buff); + + return ret_val; +} + +static int e1000_set_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u16 *eeprom_buff; + void *ptr; + int max_len, first_word, last_word, ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EOPNOTSUPP; + + if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) + return -EFAULT; + + max_len = hw->eeprom.word_size * 2; + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + eeprom_buff = kmalloc(max_len, GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + ptr = (void *)eeprom_buff; + + if (eeprom->offset & 1) { + /* need read/modify/write of first changed EEPROM word */ + /* only the second byte of the word is being modified */ + ret_val = e1000_read_eeprom(hw, first_word, 1, + &eeprom_buff[0]); + ptr++; + } + if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) { + /* need read/modify/write of last changed EEPROM word */ + /* only the first byte of the word is being modified */ + ret_val = e1000_read_eeprom(hw, last_word, 1, + &eeprom_buff[last_word - first_word]); + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(ptr, bytes, eeprom->len); + + for (i = 0; i < last_word - first_word + 1; i++) + eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]); + + ret_val = e1000_write_eeprom(hw, first_word, + last_word - first_word + 1, eeprom_buff); + + /* Update the checksum over the first part of the EEPROM if needed */ + if ((ret_val == 0) && (first_word <= EEPROM_CHECKSUM_REG)) + e1000_update_eeprom_checksum(hw); + + kfree(eeprom_buff); + return ret_val; +} + +static void e1000_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + char firmware_version[32]; + + strncpy(drvinfo->driver, e1000_driver_name, 32); + strncpy(drvinfo->version, e1000_driver_version, 32); + + sprintf(firmware_version, "N/A"); + strncpy(drvinfo->fw_version, firmware_version, 32); + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32); + drvinfo->regdump_len = e1000_get_regs_len(netdev); + drvinfo->eedump_len = e1000_get_eeprom_len(netdev); +} + +static void e1000_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + e1000_mac_type mac_type = hw->mac_type; + struct e1000_tx_ring *txdr = adapter->tx_ring; + struct e1000_rx_ring *rxdr = adapter->rx_ring; + + ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD : + E1000_MAX_82544_RXD; + ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD : + E1000_MAX_82544_TXD; + ring->rx_mini_max_pending = 0; + ring->rx_jumbo_max_pending = 0; + ring->rx_pending = rxdr->count; + ring->tx_pending = txdr->count; + ring->rx_mini_pending = 0; + ring->rx_jumbo_pending = 0; +} + +static int e1000_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + e1000_mac_type mac_type = hw->mac_type; + struct e1000_tx_ring *txdr, *tx_old; + struct e1000_rx_ring *rxdr, *rx_old; + int i, err; + + if (adapter->ecdev) + return -EBUSY; + + if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) + return -EINVAL; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (netif_running(adapter->netdev)) + e1000_down(adapter); + + tx_old = adapter->tx_ring; + rx_old = adapter->rx_ring; + + err = -ENOMEM; + txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL); + if (!txdr) + goto err_alloc_tx; + + rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL); + if (!rxdr) + goto err_alloc_rx; + + adapter->tx_ring = txdr; + adapter->rx_ring = rxdr; + + rxdr->count = max(ring->rx_pending,(u32)E1000_MIN_RXD); + rxdr->count = min(rxdr->count,(u32)(mac_type < e1000_82544 ? + E1000_MAX_RXD : E1000_MAX_82544_RXD)); + rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE); + + txdr->count = max(ring->tx_pending,(u32)E1000_MIN_TXD); + txdr->count = min(txdr->count,(u32)(mac_type < e1000_82544 ? + E1000_MAX_TXD : E1000_MAX_82544_TXD)); + txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE); + + for (i = 0; i < adapter->num_tx_queues; i++) + txdr[i].count = txdr->count; + for (i = 0; i < adapter->num_rx_queues; i++) + rxdr[i].count = rxdr->count; + + if (netif_running(adapter->netdev)) { + /* Try to get new resources before deleting old */ + err = e1000_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + err = e1000_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* save the new, restore the old in order to free it, + * then restore the new back again */ + + adapter->rx_ring = rx_old; + adapter->tx_ring = tx_old; + e1000_free_all_rx_resources(adapter); + e1000_free_all_tx_resources(adapter); + kfree(tx_old); + kfree(rx_old); + adapter->rx_ring = rxdr; + adapter->tx_ring = txdr; + err = e1000_up(adapter); + if (err) + goto err_setup; + } + + clear_bit(__E1000_RESETTING, &adapter->flags); + return 0; +err_setup_tx: + e1000_free_all_rx_resources(adapter); +err_setup_rx: + adapter->rx_ring = rx_old; + adapter->tx_ring = tx_old; + kfree(rxdr); +err_alloc_rx: + kfree(txdr); +err_alloc_tx: + e1000_up(adapter); +err_setup: + clear_bit(__E1000_RESETTING, &adapter->flags); + return err; +} + +static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + struct e1000_hw *hw = &adapter->hw; + static const u32 test[] = + {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF}; + u8 __iomem *address = hw->hw_addr + reg; + u32 read; + int i; + + for (i = 0; i < ARRAY_SIZE(test); i++) { + writel(write & test[i], address); + read = readl(address); + if (read != (write & test[i] & mask)) { + DPRINTK(DRV, ERR, "pattern test reg %04X failed: " + "got 0x%08X expected 0x%08X\n", + reg, read, (write & test[i] & mask)); + *data = reg; + return true; + } + } + return false; +} + +static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + struct e1000_hw *hw = &adapter->hw; + u8 __iomem *address = hw->hw_addr + reg; + u32 read; + + writel(write & mask, address); + read = readl(address); + if ((read & mask) != (write & mask)) { + DPRINTK(DRV, ERR, "set/check reg %04X test failed: " + "got 0x%08X expected 0x%08X\n", + reg, (read & mask), (write & mask)); + *data = reg; + return true; + } + return false; +} + +#define REG_PATTERN_TEST(reg, mask, write) \ + do { \ + if (reg_pattern_test(adapter, data, \ + (hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg, \ + mask, write)) \ + return 1; \ + } while (0) + +#define REG_SET_AND_CHECK(reg, mask, write) \ + do { \ + if (reg_set_and_check(adapter, data, \ + (hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg, \ + mask, write)) \ + return 1; \ + } while (0) + +static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) +{ + u32 value, before, after; + u32 i, toggle; + struct e1000_hw *hw = &adapter->hw; + + /* The status register is Read Only, so a write should fail. + * Some bits that get toggled are ignored. + */ + + /* there are several bits on newer hardware that are r/w */ + toggle = 0xFFFFF833; + + before = er32(STATUS); + value = (er32(STATUS) & toggle); + ew32(STATUS, toggle); + after = er32(STATUS) & toggle; + if (value != after) { + DPRINTK(DRV, ERR, "failed STATUS register test got: " + "0x%08X expected: 0x%08X\n", after, value); + *data = 1; + return 1; + } + /* restore previous status */ + ew32(STATUS, before); + + REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF); + + REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF); + REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8); + REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF); + REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF); + + REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000); + + before = 0x06DFB3FE; + REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB); + REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000); + + if (hw->mac_type >= e1000_82543) { + + REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF); + REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF); + REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF); + REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF); + value = E1000_RAR_ENTRIES; + for (i = 0; i < value; i++) { + REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF, + 0xFFFFFFFF); + } + + } else { + + REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF); + REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF); + REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF); + + } + + value = E1000_MC_TBL_SIZE; + for (i = 0; i < value; i++) + REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF); + + *data = 0; + return 0; +} + +static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + u16 temp; + u16 checksum = 0; + u16 i; + + *data = 0; + /* Read and add up the contents of the EEPROM */ + for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { + if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) { + *data = 1; + break; + } + checksum += temp; + } + + /* If Checksum is not Correct return error else test passed */ + if ((checksum != (u16)EEPROM_SUM) && !(*data)) + *data = 2; + + return *data; +} + +static irqreturn_t e1000_test_intr(int irq, void *data) +{ + struct net_device *netdev = (struct net_device *)data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + adapter->test_icr |= er32(ICR); + + return IRQ_HANDLED; +} + +static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) +{ + struct net_device *netdev = adapter->netdev; + u32 mask, i = 0; + bool shared_int = true; + u32 irq = adapter->pdev->irq; + struct e1000_hw *hw = &adapter->hw; + + *data = 0; + + /* NOTE: we don't test MSI interrupts here, yet */ + /* Hook up test interrupt handler just for this test */ + if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name, + netdev)) + shared_int = false; + else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, + netdev->name, netdev)) { + *data = 1; + return -1; + } + DPRINTK(HW, INFO, "testing %s interrupt\n", + (shared_int ? "shared" : "unshared")); + + /* Disable all the interrupts */ + ew32(IMC, 0xFFFFFFFF); + msleep(10); + + /* Test each interrupt */ + for (; i < 10; i++) { + + /* Interrupt to test */ + mask = 1 << i; + + if (!shared_int) { + /* Disable the interrupt to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMC, mask); + ew32(ICS, mask); + msleep(10); + + if (adapter->test_icr & mask) { + *data = 3; + break; + } + } + + /* Enable the interrupt to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was not posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMS, mask); + ew32(ICS, mask); + msleep(10); + + if (!(adapter->test_icr & mask)) { + *data = 4; + break; + } + + if (!shared_int) { + /* Disable the other interrupts to be reported in + * the cause register and then force the other + * interrupts and see if any get posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMC, ~mask & 0x00007FFF); + ew32(ICS, ~mask & 0x00007FFF); + msleep(10); + + if (adapter->test_icr) { + *data = 5; + break; + } + } + } + + /* Disable all the interrupts */ + ew32(IMC, 0xFFFFFFFF); + msleep(10); + + /* Unhook test interrupt handler */ + free_irq(irq, netdev); + + return *data; +} + +static void e1000_free_desc_rings(struct e1000_adapter *adapter) +{ + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + int i; + + if (txdr->desc && txdr->buffer_info) { + for (i = 0; i < txdr->count; i++) { + if (txdr->buffer_info[i].dma) + pci_unmap_single(pdev, txdr->buffer_info[i].dma, + txdr->buffer_info[i].length, + PCI_DMA_TODEVICE); + if (txdr->buffer_info[i].skb) + dev_kfree_skb(txdr->buffer_info[i].skb); + } + } + + if (rxdr->desc && rxdr->buffer_info) { + for (i = 0; i < rxdr->count; i++) { + if (rxdr->buffer_info[i].dma) + pci_unmap_single(pdev, rxdr->buffer_info[i].dma, + rxdr->buffer_info[i].length, + PCI_DMA_FROMDEVICE); + if (rxdr->buffer_info[i].skb) + dev_kfree_skb(rxdr->buffer_info[i].skb); + } + } + + if (txdr->desc) { + pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma); + txdr->desc = NULL; + } + if (rxdr->desc) { + pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma); + rxdr->desc = NULL; + } + + kfree(txdr->buffer_info); + txdr->buffer_info = NULL; + kfree(rxdr->buffer_info); + rxdr->buffer_info = NULL; + + return; +} + +static int e1000_setup_desc_rings(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + u32 rctl; + int i, ret_val; + + /* Setup Tx descriptor ring and Tx buffers */ + + if (!txdr->count) + txdr->count = E1000_DEFAULT_TXD; + + txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_buffer), + GFP_KERNEL); + if (!txdr->buffer_info) { + ret_val = 1; + goto err_nomem; + } + + txdr->size = txdr->count * sizeof(struct e1000_tx_desc); + txdr->size = ALIGN(txdr->size, 4096); + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + if (!txdr->desc) { + ret_val = 2; + goto err_nomem; + } + memset(txdr->desc, 0, txdr->size); + txdr->next_to_use = txdr->next_to_clean = 0; + + ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF)); + ew32(TDBAH, ((u64)txdr->dma >> 32)); + ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc)); + ew32(TDH, 0); + ew32(TDT, 0); + ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | + E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT | + E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT); + + for (i = 0; i < txdr->count; i++) { + struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i); + struct sk_buff *skb; + unsigned int size = 1024; + + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) { + ret_val = 3; + goto err_nomem; + } + skb_put(skb, size); + txdr->buffer_info[i].skb = skb; + txdr->buffer_info[i].length = skb->len; + txdr->buffer_info[i].dma = + pci_map_single(pdev, skb->data, skb->len, + PCI_DMA_TODEVICE); + tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma); + tx_desc->lower.data = cpu_to_le32(skb->len); + tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP | + E1000_TXD_CMD_IFCS | + E1000_TXD_CMD_RPS); + tx_desc->upper.data = 0; + } + + /* Setup Rx descriptor ring and Rx buffers */ + + if (!rxdr->count) + rxdr->count = E1000_DEFAULT_RXD; + + rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer), + GFP_KERNEL); + if (!rxdr->buffer_info) { + ret_val = 4; + goto err_nomem; + } + + rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc); + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + if (!rxdr->desc) { + ret_val = 5; + goto err_nomem; + } + memset(rxdr->desc, 0, rxdr->size); + rxdr->next_to_use = rxdr->next_to_clean = 0; + + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF)); + ew32(RDBAH, ((u64)rxdr->dma >> 32)); + ew32(RDLEN, rxdr->size); + ew32(RDH, 0); + ew32(RDT, 0); + rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 | + E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); + ew32(RCTL, rctl); + + for (i = 0; i < rxdr->count; i++) { + struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i); + struct sk_buff *skb; + + skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL); + if (!skb) { + ret_val = 6; + goto err_nomem; + } + skb_reserve(skb, NET_IP_ALIGN); + rxdr->buffer_info[i].skb = skb; + rxdr->buffer_info[i].length = E1000_RXBUFFER_2048; + rxdr->buffer_info[i].dma = + pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048, + PCI_DMA_FROMDEVICE); + rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma); + memset(skb->data, 0x00, skb->len); + } + + return 0; + +err_nomem: + e1000_free_desc_rings(adapter); + return ret_val; +} + +static void e1000_phy_disable_receiver(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* Write out to PHY registers 29 and 30 to disable the Receiver. */ + e1000_write_phy_reg(hw, 29, 0x001F); + e1000_write_phy_reg(hw, 30, 0x8FFC); + e1000_write_phy_reg(hw, 29, 0x001A); + e1000_write_phy_reg(hw, 30, 0x8FF0); +} + +static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_reg; + + /* Because we reset the PHY above, we need to re-force TX_CLK in the + * Extended PHY Specific Control Register to 25MHz clock. This + * value defaults back to a 2.5MHz clock when the PHY is reset. + */ + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); + phy_reg |= M88E1000_EPSCR_TX_CLK_25; + e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, phy_reg); + + /* In addition, because of the s/w reset above, we need to enable + * CRS on TX. This must be set for both full and half duplex + * operation. + */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); + phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + e1000_write_phy_reg(hw, + M88E1000_PHY_SPEC_CTRL, phy_reg); +} + +static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl_reg; + u16 phy_reg; + + /* Setup the Device Control Register for PHY loopback test. */ + + ctrl_reg = er32(CTRL); + ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */ + E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_1000 | /* Force Speed to 1000 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + + ew32(CTRL, ctrl_reg); + + /* Read the PHY Specific Control Register (0x10) */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); + + /* Clear Auto-Crossover bits in PHY Specific Control Register + * (bits 6:5). + */ + phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE; + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg); + + /* Perform software reset on the PHY */ + e1000_phy_reset(hw); + + /* Have to setup TX_CLK and TX_CRS after software reset */ + e1000_phy_reset_clk_and_crs(adapter); + + e1000_write_phy_reg(hw, PHY_CTRL, 0x8100); + + /* Wait for reset to complete. */ + udelay(500); + + /* Have to setup TX_CLK and TX_CRS after software reset */ + e1000_phy_reset_clk_and_crs(adapter); + + /* Write out to PHY registers 29 and 30 to disable the Receiver. */ + e1000_phy_disable_receiver(adapter); + + /* Set the loopback bit in the PHY control register. */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + phy_reg |= MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + + /* Setup TX_CLK and TX_CRS one more time. */ + e1000_phy_reset_clk_and_crs(adapter); + + /* Check Phy Configuration */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + if (phy_reg != 0x4100) + return 9; + + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); + if (phy_reg != 0x0070) + return 10; + + e1000_read_phy_reg(hw, 29, &phy_reg); + if (phy_reg != 0x001A) + return 11; + + return 0; +} + +static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl_reg = 0; + u32 stat_reg = 0; + + hw->autoneg = false; + + if (hw->phy_type == e1000_phy_m88) { + /* Auto-MDI/MDIX Off */ + e1000_write_phy_reg(hw, + M88E1000_PHY_SPEC_CTRL, 0x0808); + /* reset to update Auto-MDI/MDIX */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x9140); + /* autoneg off */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x8140); + } + + ctrl_reg = er32(CTRL); + + /* force 1000, set loopback */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x4140); + + /* Now set up the MAC to the same speed/duplex as the PHY. */ + ctrl_reg = er32(CTRL); + ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ + ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + + if (hw->media_type == e1000_media_type_copper && + hw->phy_type == e1000_phy_m88) + ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ + else { + /* Set the ILOS bit on the fiber Nic is half + * duplex link is detected. */ + stat_reg = er32(STATUS); + if ((stat_reg & E1000_STATUS_FD) == 0) + ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU); + } + + ew32(CTRL, ctrl_reg); + + /* Disable the receiver on the PHY so when a cable is plugged in, the + * PHY does not begin to autoneg when a cable is reconnected to the NIC. + */ + if (hw->phy_type == e1000_phy_m88) + e1000_phy_disable_receiver(adapter); + + udelay(500); + + return 0; +} + +static int e1000_set_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_reg = 0; + u16 count = 0; + + switch (hw->mac_type) { + case e1000_82543: + if (hw->media_type == e1000_media_type_copper) { + /* Attempt to setup Loopback mode on Non-integrated PHY. + * Some PHY registers get corrupted at random, so + * attempt this 10 times. + */ + while (e1000_nonintegrated_phy_loopback(adapter) && + count++ < 10); + if (count < 11) + return 0; + } + break; + + case e1000_82544: + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + return e1000_integrated_phy_loopback(adapter); + break; + default: + /* Default PHY loopback work is to read the MII + * control register and assert bit 14 (loopback mode). + */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + phy_reg |= MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + return 0; + break; + } + + return 8; +} + +static int e1000_setup_loopback_test(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { + switch (hw->mac_type) { + case e1000_82545: + case e1000_82546: + case e1000_82545_rev_3: + case e1000_82546_rev_3: + return e1000_set_phy_loopback(adapter); + break; + default: + rctl = er32(RCTL); + rctl |= E1000_RCTL_LBM_TCVR; + ew32(RCTL, rctl); + return 0; + } + } else if (hw->media_type == e1000_media_type_copper) + return e1000_set_phy_loopback(adapter); + + return 7; +} + +static void e1000_loopback_cleanup(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + u16 phy_reg; + + rctl = er32(RCTL); + rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); + ew32(RCTL, rctl); + + switch (hw->mac_type) { + case e1000_82545: + case e1000_82546: + case e1000_82545_rev_3: + case e1000_82546_rev_3: + default: + hw->autoneg = true; + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + if (phy_reg & MII_CR_LOOPBACK) { + phy_reg &= ~MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + e1000_phy_reset(hw); + } + break; + } +} + +static void e1000_create_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + memset(skb->data, 0xFF, frame_size); + frame_size &= ~1; + memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); + memset(&skb->data[frame_size / 2 + 10], 0xBE, 1); + memset(&skb->data[frame_size / 2 + 12], 0xAF, 1); +} + +static int e1000_check_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + frame_size &= ~1; + if (*(skb->data + 3) == 0xFF) { + if ((*(skb->data + frame_size / 2 + 10) == 0xBE) && + (*(skb->data + frame_size / 2 + 12) == 0xAF)) { + return 0; + } + } + return 13; +} + +static int e1000_run_loopback_test(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + int i, j, k, l, lc, good_cnt, ret_val=0; + unsigned long time; + + ew32(RDT, rxdr->count - 1); + + /* Calculate the loop count based on the largest descriptor ring + * The idea is to wrap the largest ring a number of times using 64 + * send/receive pairs during each loop + */ + + if (rxdr->count <= txdr->count) + lc = ((txdr->count / 64) * 2) + 1; + else + lc = ((rxdr->count / 64) * 2) + 1; + + k = l = 0; + for (j = 0; j <= lc; j++) { /* loop count loop */ + for (i = 0; i < 64; i++) { /* send the packets */ + e1000_create_lbtest_frame(txdr->buffer_info[i].skb, + 1024); + pci_dma_sync_single_for_device(pdev, + txdr->buffer_info[k].dma, + txdr->buffer_info[k].length, + PCI_DMA_TODEVICE); + if (unlikely(++k == txdr->count)) k = 0; + } + ew32(TDT, k); + msleep(200); + time = jiffies; /* set the start time for the receive */ + good_cnt = 0; + do { /* receive the sent packets */ + pci_dma_sync_single_for_cpu(pdev, + rxdr->buffer_info[l].dma, + rxdr->buffer_info[l].length, + PCI_DMA_FROMDEVICE); + + ret_val = e1000_check_lbtest_frame( + rxdr->buffer_info[l].skb, + 1024); + if (!ret_val) + good_cnt++; + if (unlikely(++l == rxdr->count)) l = 0; + /* time + 20 msecs (200 msecs on 2.4) is more than + * enough time to complete the receives, if it's + * exceeded, break and error off + */ + } while (good_cnt < 64 && jiffies < (time + 20)); + if (good_cnt != 64) { + ret_val = 13; /* ret_val is the same as mis-compare */ + break; + } + if (jiffies >= (time + 2)) { + ret_val = 14; /* error code for time out error */ + break; + } + } /* end loop count loop */ + return ret_val; +} + +static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data) +{ + *data = e1000_setup_desc_rings(adapter); + if (*data) + goto out; + *data = e1000_setup_loopback_test(adapter); + if (*data) + goto err_loopback; + *data = e1000_run_loopback_test(adapter); + e1000_loopback_cleanup(adapter); + +err_loopback: + e1000_free_desc_rings(adapter); +out: + return *data; +} + +static int e1000_link_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + *data = 0; + if (hw->media_type == e1000_media_type_internal_serdes) { + int i = 0; + hw->serdes_has_link = false; + + /* On some blade server designs, link establishment + * could take as long as 2-3 minutes */ + do { + e1000_check_for_link(hw); + if (hw->serdes_has_link) + return *data; + msleep(20); + } while (i++ < 3750); + + *data = 1; + } else { + e1000_check_for_link(hw); + if (hw->autoneg) /* if auto_neg is set wait for it */ + msleep(4000); + + if (!(er32(STATUS) & E1000_STATUS_LU)) { + *data = 1; + } + } + return *data; +} + +static int e1000_get_sset_count(struct net_device *netdev, int sset) +{ + switch (sset) { + case ETH_SS_TEST: + return E1000_TEST_LEN; + case ETH_SS_STATS: + return E1000_STATS_LEN; + default: + return -EOPNOTSUPP; + } +} + +static void e1000_diag_test(struct net_device *netdev, + struct ethtool_test *eth_test, u64 *data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + bool if_running; + + if (adapter->ecdev) + return; + + if_running = netif_running(netdev); + + set_bit(__E1000_TESTING, &adapter->flags); + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + /* Offline tests */ + + /* save speed, duplex, autoneg settings */ + u16 autoneg_advertised = hw->autoneg_advertised; + u8 forced_speed_duplex = hw->forced_speed_duplex; + u8 autoneg = hw->autoneg; + + DPRINTK(HW, INFO, "offline testing starting\n"); + + /* Link test performed before hardware reset so autoneg doesn't + * interfere with test result */ + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + if (if_running) + /* indicate we're in test mode */ + dev_close(netdev); + else + e1000_reset(adapter); + + if (e1000_reg_test(adapter, &data[0])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + if (e1000_eeprom_test(adapter, &data[1])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + if (e1000_intr_test(adapter, &data[2])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + /* make sure the phy is powered up */ + e1000_power_up_phy(adapter); + if (e1000_loopback_test(adapter, &data[3])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* restore speed, duplex, autoneg settings */ + hw->autoneg_advertised = autoneg_advertised; + hw->forced_speed_duplex = forced_speed_duplex; + hw->autoneg = autoneg; + + e1000_reset(adapter); + clear_bit(__E1000_TESTING, &adapter->flags); + if (if_running) + dev_open(netdev); + } else { + DPRINTK(HW, INFO, "online testing starting\n"); + /* Online tests */ + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* Online tests aren't run; pass by default */ + data[0] = 0; + data[1] = 0; + data[2] = 0; + data[3] = 0; + + clear_bit(__E1000_TESTING, &adapter->flags); + } + msleep_interruptible(4 * 1000); +} + +static int e1000_wol_exclusion(struct e1000_adapter *adapter, + struct ethtool_wolinfo *wol) +{ + struct e1000_hw *hw = &adapter->hw; + int retval = 1; /* fail by default */ + + switch (hw->device_id) { + case E1000_DEV_ID_82542: + case E1000_DEV_ID_82543GC_FIBER: + case E1000_DEV_ID_82543GC_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER: + case E1000_DEV_ID_82546GB_PCIE: + /* these don't support WoL at all */ + wol->supported = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + /* Wake events not supported on port B */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) { + wol->supported = 0; + break; + } + /* return success for non excluded adapter ports */ + retval = 0; + break; + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* quad port adapters only support WoL on port A */ + if (!adapter->quad_port_a) { + wol->supported = 0; + break; + } + /* return success for non excluded adapter ports */ + retval = 0; + break; + default: + /* dual port cards only support WoL on port A from now on + * unless it was enabled in the eeprom for port B + * so exclude FUNC_1 ports from having WoL enabled */ + if (er32(STATUS) & E1000_STATUS_FUNC_1 && + !adapter->eeprom_wol) { + wol->supported = 0; + break; + } + + retval = 0; + } + + return retval; +} + +static void e1000_get_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + wol->supported = WAKE_UCAST | WAKE_MCAST | + WAKE_BCAST | WAKE_MAGIC; + wol->wolopts = 0; + + /* this function will set ->supported = 0 and return 1 if wol is not + * supported by this hardware */ + if (e1000_wol_exclusion(adapter, wol) || + !device_can_wakeup(&adapter->pdev->dev)) + return; + + /* apply any specific unsupported masks here */ + switch (hw->device_id) { + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* KSP3 does not suppport UCAST wake-ups */ + wol->supported &= ~WAKE_UCAST; + + if (adapter->wol & E1000_WUFC_EX) + DPRINTK(DRV, ERR, "Interface does not support " + "directed (unicast) frame wake-up packets\n"); + break; + default: + break; + } + + if (adapter->wol & E1000_WUFC_EX) + wol->wolopts |= WAKE_UCAST; + if (adapter->wol & E1000_WUFC_MC) + wol->wolopts |= WAKE_MCAST; + if (adapter->wol & E1000_WUFC_BC) + wol->wolopts |= WAKE_BCAST; + if (adapter->wol & E1000_WUFC_MAG) + wol->wolopts |= WAKE_MAGIC; + + return; +} + +static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) + return -EOPNOTSUPP; + + if (e1000_wol_exclusion(adapter, wol) || + !device_can_wakeup(&adapter->pdev->dev)) + return wol->wolopts ? -EOPNOTSUPP : 0; + + switch (hw->device_id) { + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + if (wol->wolopts & WAKE_UCAST) { + DPRINTK(DRV, ERR, "Interface does not support " + "directed (unicast) frame wake-up packets\n"); + return -EOPNOTSUPP; + } + break; + default: + break; + } + + /* these settings will always override what we currently have */ + adapter->wol = 0; + + if (wol->wolopts & WAKE_UCAST) + adapter->wol |= E1000_WUFC_EX; + if (wol->wolopts & WAKE_MCAST) + adapter->wol |= E1000_WUFC_MC; + if (wol->wolopts & WAKE_BCAST) + adapter->wol |= E1000_WUFC_BC; + if (wol->wolopts & WAKE_MAGIC) + adapter->wol |= E1000_WUFC_MAG; + + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + + return 0; +} + +/* toggle LED 4 times per second = 2 "blinks" per second */ +#define E1000_ID_INTERVAL (HZ/4) + +/* bit defines for adapter->led_status */ +#define E1000_LED_ON 0 + +static void e1000_led_blink_callback(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *) data; + struct e1000_hw *hw = &adapter->hw; + + if (test_and_change_bit(E1000_LED_ON, &adapter->led_status)) + e1000_led_off(hw); + else + e1000_led_on(hw); + + mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL); +} + +static int e1000_phys_id(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (!data) + data = INT_MAX; + + if (!adapter->blink_timer.function) { + init_timer(&adapter->blink_timer); + adapter->blink_timer.function = e1000_led_blink_callback; + adapter->blink_timer.data = (unsigned long)adapter; + } + e1000_setup_led(hw); + mod_timer(&adapter->blink_timer, jiffies); + msleep_interruptible(data * 1000); + del_timer_sync(&adapter->blink_timer); + + e1000_led_off(hw); + clear_bit(E1000_LED_ON, &adapter->led_status); + e1000_cleanup_led(hw); + + return 0; +} + +static int e1000_get_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + if (adapter->hw.mac_type < e1000_82545) + return -EOPNOTSUPP; + + if (adapter->itr_setting <= 3) + ec->rx_coalesce_usecs = adapter->itr_setting; + else + ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting; + + return 0; +} + +static int e1000_set_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->mac_type < e1000_82545) + return -EOPNOTSUPP; + + if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) || + ((ec->rx_coalesce_usecs > 3) && + (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) || + (ec->rx_coalesce_usecs == 2)) + return -EINVAL; + + if (ec->rx_coalesce_usecs <= 3) { + adapter->itr = 20000; + adapter->itr_setting = ec->rx_coalesce_usecs; + } else { + adapter->itr = (1000000 / ec->rx_coalesce_usecs); + adapter->itr_setting = adapter->itr & ~3; + } + + if (adapter->itr_setting != 0) + ew32(ITR, 1000000000 / (adapter->itr * 256)); + else + ew32(ITR, 0); + + return 0; +} + +static int e1000_nway_reset(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + if (adapter->ecdev) + return -EBUSY; + + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + return 0; +} + +static void e1000_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + int i; + char *p = NULL; + + e1000_update_stats(adapter); + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + switch (e1000_gstrings_stats[i].type) { + case NETDEV_STATS: + p = (char *) netdev + + e1000_gstrings_stats[i].stat_offset; + break; + case E1000_STATS: + p = (char *) adapter + + e1000_gstrings_stats[i].stat_offset; + break; + } + + data[i] = (e1000_gstrings_stats[i].sizeof_stat == + sizeof(u64)) ? *(u64 *)p : *(u32 *)p; + } +/* BUG_ON(i != E1000_STATS_LEN); */ +} + +static void e1000_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + u8 *p = data; + int i; + + switch (stringset) { + case ETH_SS_TEST: + memcpy(data, *e1000_gstrings_test, + sizeof(e1000_gstrings_test)); + break; + case ETH_SS_STATS: + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + memcpy(p, e1000_gstrings_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } +/* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */ + break; + } +} + +static const struct ethtool_ops e1000_ethtool_ops = { + .get_settings = e1000_get_settings, + .set_settings = e1000_set_settings, + .get_drvinfo = e1000_get_drvinfo, + .get_regs_len = e1000_get_regs_len, + .get_regs = e1000_get_regs, + .get_wol = e1000_get_wol, + .set_wol = e1000_set_wol, + .get_msglevel = e1000_get_msglevel, + .set_msglevel = e1000_set_msglevel, + .nway_reset = e1000_nway_reset, + .get_link = ethtool_op_get_link, + .get_eeprom_len = e1000_get_eeprom_len, + .get_eeprom = e1000_get_eeprom, + .set_eeprom = e1000_set_eeprom, + .get_ringparam = e1000_get_ringparam, + .set_ringparam = e1000_set_ringparam, + .get_pauseparam = e1000_get_pauseparam, + .set_pauseparam = e1000_set_pauseparam, + .get_rx_csum = e1000_get_rx_csum, + .set_rx_csum = e1000_set_rx_csum, + .get_tx_csum = e1000_get_tx_csum, + .set_tx_csum = e1000_set_tx_csum, + .set_sg = ethtool_op_set_sg, + .set_tso = e1000_set_tso, + .self_test = e1000_diag_test, + .get_strings = e1000_get_strings, + .phys_id = e1000_phys_id, + .get_ethtool_stats = e1000_get_ethtool_stats, + .get_sset_count = e1000_get_sset_count, + .get_coalesce = e1000_get_coalesce, + .set_coalesce = e1000_set_coalesce, +}; + +void e1000_set_ethtool_ops(struct net_device *netdev) +{ + SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops); +} diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_ethtool-2.6.33-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_ethtool-2.6.33-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,1921 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* ethtool support for e1000 */ + +#include "e1000.h" +#include + +enum {NETDEV_STATS, E1000_STATS}; + +struct e1000_stats { + char stat_string[ETH_GSTRING_LEN]; + int type; + int sizeof_stat; + int stat_offset; +}; + +#define E1000_STAT(m) E1000_STATS, \ + sizeof(((struct e1000_adapter *)0)->m), \ + offsetof(struct e1000_adapter, m) +#define E1000_NETDEV_STAT(m) NETDEV_STATS, \ + sizeof(((struct net_device *)0)->m), \ + offsetof(struct net_device, m) + +static const struct e1000_stats e1000_gstrings_stats[] = { + { "rx_packets", E1000_STAT(stats.gprc) }, + { "tx_packets", E1000_STAT(stats.gptc) }, + { "rx_bytes", E1000_STAT(stats.gorcl) }, + { "tx_bytes", E1000_STAT(stats.gotcl) }, + { "rx_broadcast", E1000_STAT(stats.bprc) }, + { "tx_broadcast", E1000_STAT(stats.bptc) }, + { "rx_multicast", E1000_STAT(stats.mprc) }, + { "tx_multicast", E1000_STAT(stats.mptc) }, + { "rx_errors", E1000_STAT(stats.rxerrc) }, + { "tx_errors", E1000_STAT(stats.txerrc) }, + { "tx_dropped", E1000_NETDEV_STAT(stats.tx_dropped) }, + { "multicast", E1000_STAT(stats.mprc) }, + { "collisions", E1000_STAT(stats.colc) }, + { "rx_length_errors", E1000_STAT(stats.rlerrc) }, + { "rx_over_errors", E1000_NETDEV_STAT(stats.rx_over_errors) }, + { "rx_crc_errors", E1000_STAT(stats.crcerrs) }, + { "rx_frame_errors", E1000_NETDEV_STAT(stats.rx_frame_errors) }, + { "rx_no_buffer_count", E1000_STAT(stats.rnbc) }, + { "rx_missed_errors", E1000_STAT(stats.mpc) }, + { "tx_aborted_errors", E1000_STAT(stats.ecol) }, + { "tx_carrier_errors", E1000_STAT(stats.tncrs) }, + { "tx_fifo_errors", E1000_NETDEV_STAT(stats.tx_fifo_errors) }, + { "tx_heartbeat_errors", E1000_NETDEV_STAT(stats.tx_heartbeat_errors) }, + { "tx_window_errors", E1000_STAT(stats.latecol) }, + { "tx_abort_late_coll", E1000_STAT(stats.latecol) }, + { "tx_deferred_ok", E1000_STAT(stats.dc) }, + { "tx_single_coll_ok", E1000_STAT(stats.scc) }, + { "tx_multi_coll_ok", E1000_STAT(stats.mcc) }, + { "tx_timeout_count", E1000_STAT(tx_timeout_count) }, + { "tx_restart_queue", E1000_STAT(restart_queue) }, + { "rx_long_length_errors", E1000_STAT(stats.roc) }, + { "rx_short_length_errors", E1000_STAT(stats.ruc) }, + { "rx_align_errors", E1000_STAT(stats.algnerrc) }, + { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) }, + { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) }, + { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) }, + { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) }, + { "tx_flow_control_xon", E1000_STAT(stats.xontxc) }, + { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) }, + { "rx_long_byte_count", E1000_STAT(stats.gorcl) }, + { "rx_csum_offload_good", E1000_STAT(hw_csum_good) }, + { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) }, + { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) }, + { "tx_smbus", E1000_STAT(stats.mgptc) }, + { "rx_smbus", E1000_STAT(stats.mgprc) }, + { "dropped_smbus", E1000_STAT(stats.mgpdc) }, +}; + +#define E1000_QUEUE_STATS_LEN 0 +#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats) +#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN) +static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = { + "Register test (offline)", "Eeprom test (offline)", + "Interrupt test (offline)", "Loopback test (offline)", + "Link test (on/offline)" +}; +#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test) + +static int e1000_get_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->media_type == e1000_media_type_copper) { + + ecmd->supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full| + SUPPORTED_Autoneg | + SUPPORTED_TP); + ecmd->advertising = ADVERTISED_TP; + + if (hw->autoneg == 1) { + ecmd->advertising |= ADVERTISED_Autoneg; + /* the e1000 autoneg seems to match ethtool nicely */ + ecmd->advertising |= hw->autoneg_advertised; + } + + ecmd->port = PORT_TP; + ecmd->phy_address = hw->phy_addr; + + if (hw->mac_type == e1000_82543) + ecmd->transceiver = XCVR_EXTERNAL; + else + ecmd->transceiver = XCVR_INTERNAL; + + } else { + ecmd->supported = (SUPPORTED_1000baseT_Full | + SUPPORTED_FIBRE | + SUPPORTED_Autoneg); + + ecmd->advertising = (ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg); + + ecmd->port = PORT_FIBRE; + + if (hw->mac_type >= e1000_82545) + ecmd->transceiver = XCVR_INTERNAL; + else + ecmd->transceiver = XCVR_EXTERNAL; + } + + if (er32(STATUS) & E1000_STATUS_LU) { + + e1000_get_speed_and_duplex(hw, &adapter->link_speed, + &adapter->link_duplex); + ecmd->speed = adapter->link_speed; + + /* unfortunatly FULL_DUPLEX != DUPLEX_FULL + * and HALF_DUPLEX != DUPLEX_HALF */ + + if (adapter->link_duplex == FULL_DUPLEX) + ecmd->duplex = DUPLEX_FULL; + else + ecmd->duplex = DUPLEX_HALF; + } else { + ecmd->speed = -1; + ecmd->duplex = -1; + } + + ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) || + hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE; + return 0; +} + +static int e1000_set_settings(struct net_device *netdev, + struct ethtool_cmd *ecmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (ecmd->autoneg == AUTONEG_ENABLE) { + hw->autoneg = 1; + if (hw->media_type == e1000_media_type_fiber) + hw->autoneg_advertised = ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg; + else + hw->autoneg_advertised = ecmd->advertising | + ADVERTISED_TP | + ADVERTISED_Autoneg; + ecmd->advertising = hw->autoneg_advertised; + } else + if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) { + clear_bit(__E1000_RESETTING, &adapter->flags); + return -EINVAL; + } + + /* reset the link */ + + if (netif_running(adapter->netdev)) { + e1000_down(adapter); + e1000_up(adapter); + } else + e1000_reset(adapter); + + clear_bit(__E1000_RESETTING, &adapter->flags); + return 0; +} + +static void e1000_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + pause->autoneg = + (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); + + if (hw->fc == E1000_FC_RX_PAUSE) + pause->rx_pause = 1; + else if (hw->fc == E1000_FC_TX_PAUSE) + pause->tx_pause = 1; + else if (hw->fc == E1000_FC_FULL) { + pause->rx_pause = 1; + pause->tx_pause = 1; + } +} + +static int e1000_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int retval = 0; + + adapter->fc_autoneg = pause->autoneg; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (pause->rx_pause && pause->tx_pause) + hw->fc = E1000_FC_FULL; + else if (pause->rx_pause && !pause->tx_pause) + hw->fc = E1000_FC_RX_PAUSE; + else if (!pause->rx_pause && pause->tx_pause) + hw->fc = E1000_FC_TX_PAUSE; + else if (!pause->rx_pause && !pause->tx_pause) + hw->fc = E1000_FC_NONE; + + hw->original_fc = hw->fc; + + if (adapter->fc_autoneg == AUTONEG_ENABLE) { + if (netif_running(adapter->netdev)) { + e1000_down(adapter); + e1000_up(adapter); + } else + e1000_reset(adapter); + } else + retval = ((hw->media_type == e1000_media_type_fiber) ? + e1000_setup_link(hw) : e1000_force_mac_fc(hw)); + + clear_bit(__E1000_RESETTING, &adapter->flags); + return retval; +} + +static u32 e1000_get_rx_csum(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + return adapter->rx_csum; +} + +static int e1000_set_rx_csum(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + adapter->rx_csum = data; + + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + return 0; +} + +static u32 e1000_get_tx_csum(struct net_device *netdev) +{ + return (netdev->features & NETIF_F_HW_CSUM) != 0; +} + +static int e1000_set_tx_csum(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->mac_type < e1000_82543) { + if (!data) + return -EINVAL; + return 0; + } + + if (data) + netdev->features |= NETIF_F_HW_CSUM; + else + netdev->features &= ~NETIF_F_HW_CSUM; + + return 0; +} + +static int e1000_set_tso(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if ((hw->mac_type < e1000_82544) || + (hw->mac_type == e1000_82547)) + return data ? -EINVAL : 0; + + if (data) + netdev->features |= NETIF_F_TSO; + else + netdev->features &= ~NETIF_F_TSO; + + netdev->features &= ~NETIF_F_TSO6; + + DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled"); + adapter->tso_force = true; + return 0; +} + +static u32 e1000_get_msglevel(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + return adapter->msg_enable; +} + +static void e1000_set_msglevel(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + adapter->msg_enable = data; +} + +static int e1000_get_regs_len(struct net_device *netdev) +{ +#define E1000_REGS_LEN 32 + return E1000_REGS_LEN * sizeof(u32); +} + +static void e1000_get_regs(struct net_device *netdev, struct ethtool_regs *regs, + void *p) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 *regs_buff = p; + u16 phy_data; + + memset(p, 0, E1000_REGS_LEN * sizeof(u32)); + + regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id; + + regs_buff[0] = er32(CTRL); + regs_buff[1] = er32(STATUS); + + regs_buff[2] = er32(RCTL); + regs_buff[3] = er32(RDLEN); + regs_buff[4] = er32(RDH); + regs_buff[5] = er32(RDT); + regs_buff[6] = er32(RDTR); + + regs_buff[7] = er32(TCTL); + regs_buff[8] = er32(TDLEN); + regs_buff[9] = er32(TDH); + regs_buff[10] = er32(TDT); + regs_buff[11] = er32(TIDV); + + regs_buff[12] = hw->phy_type; /* PHY type (IGP=1, M88=0) */ + if (hw->phy_type == e1000_phy_igp) { + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_A); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[13] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_B); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[14] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_C); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[15] = (u32)phy_data; /* cable length */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_AGC_D); + e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[16] = (u32)phy_data; /* cable length */ + regs_buff[17] = 0; /* extended 10bt distance (not needed) */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[18] = (u32)phy_data; /* cable polarity */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, + IGP01E1000_PHY_PCS_INIT_REG); + e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG & + IGP01E1000_PHY_PAGE_SELECT, &phy_data); + regs_buff[19] = (u32)phy_data; /* cable polarity */ + regs_buff[20] = 0; /* polarity correction enabled (always) */ + regs_buff[22] = 0; /* phy receive errors (unavailable) */ + regs_buff[23] = regs_buff[18]; /* mdix mode */ + e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); + } else { + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + regs_buff[13] = (u32)phy_data; /* cable length */ + regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + regs_buff[17] = (u32)phy_data; /* extended 10bt distance */ + regs_buff[18] = regs_buff[13]; /* cable polarity */ + regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */ + regs_buff[20] = regs_buff[17]; /* polarity correction */ + /* phy receive errors */ + regs_buff[22] = adapter->phy_stats.receive_errors; + regs_buff[23] = regs_buff[13]; /* mdix mode */ + } + regs_buff[21] = adapter->phy_stats.idle_errors; /* phy idle errors */ + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + regs_buff[24] = (u32)phy_data; /* phy local receiver status */ + regs_buff[25] = regs_buff[24]; /* phy remote receiver status */ + if (hw->mac_type >= e1000_82540 && + hw->media_type == e1000_media_type_copper) { + regs_buff[26] = er32(MANC); + } +} + +static int e1000_get_eeprom_len(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + return hw->eeprom.word_size * 2; +} + +static int e1000_get_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u16 *eeprom_buff; + int first_word, last_word; + int ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EINVAL; + + eeprom->magic = hw->vendor_id | (hw->device_id << 16); + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + + eeprom_buff = kmalloc(sizeof(u16) * + (last_word - first_word + 1), GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + if (hw->eeprom.type == e1000_eeprom_spi) + ret_val = e1000_read_eeprom(hw, first_word, + last_word - first_word + 1, + eeprom_buff); + else { + for (i = 0; i < last_word - first_word + 1; i++) { + ret_val = e1000_read_eeprom(hw, first_word + i, 1, + &eeprom_buff[i]); + if (ret_val) + break; + } + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), + eeprom->len); + kfree(eeprom_buff); + + return ret_val; +} + +static int e1000_set_eeprom(struct net_device *netdev, + struct ethtool_eeprom *eeprom, u8 *bytes) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u16 *eeprom_buff; + void *ptr; + int max_len, first_word, last_word, ret_val = 0; + u16 i; + + if (eeprom->len == 0) + return -EOPNOTSUPP; + + if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) + return -EFAULT; + + max_len = hw->eeprom.word_size * 2; + + first_word = eeprom->offset >> 1; + last_word = (eeprom->offset + eeprom->len - 1) >> 1; + eeprom_buff = kmalloc(max_len, GFP_KERNEL); + if (!eeprom_buff) + return -ENOMEM; + + ptr = (void *)eeprom_buff; + + if (eeprom->offset & 1) { + /* need read/modify/write of first changed EEPROM word */ + /* only the second byte of the word is being modified */ + ret_val = e1000_read_eeprom(hw, first_word, 1, + &eeprom_buff[0]); + ptr++; + } + if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) { + /* need read/modify/write of last changed EEPROM word */ + /* only the first byte of the word is being modified */ + ret_val = e1000_read_eeprom(hw, last_word, 1, + &eeprom_buff[last_word - first_word]); + } + + /* Device's eeprom is always little-endian, word addressable */ + for (i = 0; i < last_word - first_word + 1; i++) + le16_to_cpus(&eeprom_buff[i]); + + memcpy(ptr, bytes, eeprom->len); + + for (i = 0; i < last_word - first_word + 1; i++) + eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]); + + ret_val = e1000_write_eeprom(hw, first_word, + last_word - first_word + 1, eeprom_buff); + + /* Update the checksum over the first part of the EEPROM if needed */ + if ((ret_val == 0) && (first_word <= EEPROM_CHECKSUM_REG)) + e1000_update_eeprom_checksum(hw); + + kfree(eeprom_buff); + return ret_val; +} + +static void e1000_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + char firmware_version[32]; + + strncpy(drvinfo->driver, e1000_driver_name, 32); + strncpy(drvinfo->version, e1000_driver_version, 32); + + sprintf(firmware_version, "N/A"); + strncpy(drvinfo->fw_version, firmware_version, 32); + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32); + drvinfo->regdump_len = e1000_get_regs_len(netdev); + drvinfo->eedump_len = e1000_get_eeprom_len(netdev); +} + +static void e1000_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + e1000_mac_type mac_type = hw->mac_type; + struct e1000_tx_ring *txdr = adapter->tx_ring; + struct e1000_rx_ring *rxdr = adapter->rx_ring; + + ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD : + E1000_MAX_82544_RXD; + ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD : + E1000_MAX_82544_TXD; + ring->rx_mini_max_pending = 0; + ring->rx_jumbo_max_pending = 0; + ring->rx_pending = rxdr->count; + ring->tx_pending = txdr->count; + ring->rx_mini_pending = 0; + ring->rx_jumbo_pending = 0; +} + +static int e1000_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + e1000_mac_type mac_type = hw->mac_type; + struct e1000_tx_ring *txdr, *tx_old; + struct e1000_rx_ring *rxdr, *rx_old; + int i, err; + + if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) + return -EINVAL; + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + + if (netif_running(adapter->netdev)) + e1000_down(adapter); + + tx_old = adapter->tx_ring; + rx_old = adapter->rx_ring; + + err = -ENOMEM; + txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL); + if (!txdr) + goto err_alloc_tx; + + rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL); + if (!rxdr) + goto err_alloc_rx; + + adapter->tx_ring = txdr; + adapter->rx_ring = rxdr; + + rxdr->count = max(ring->rx_pending,(u32)E1000_MIN_RXD); + rxdr->count = min(rxdr->count,(u32)(mac_type < e1000_82544 ? + E1000_MAX_RXD : E1000_MAX_82544_RXD)); + rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE); + + txdr->count = max(ring->tx_pending,(u32)E1000_MIN_TXD); + txdr->count = min(txdr->count,(u32)(mac_type < e1000_82544 ? + E1000_MAX_TXD : E1000_MAX_82544_TXD)); + txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE); + + for (i = 0; i < adapter->num_tx_queues; i++) + txdr[i].count = txdr->count; + for (i = 0; i < adapter->num_rx_queues; i++) + rxdr[i].count = rxdr->count; + + if (netif_running(adapter->netdev)) { + /* Try to get new resources before deleting old */ + err = e1000_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + err = e1000_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* save the new, restore the old in order to free it, + * then restore the new back again */ + + adapter->rx_ring = rx_old; + adapter->tx_ring = tx_old; + e1000_free_all_rx_resources(adapter); + e1000_free_all_tx_resources(adapter); + kfree(tx_old); + kfree(rx_old); + adapter->rx_ring = rxdr; + adapter->tx_ring = txdr; + err = e1000_up(adapter); + if (err) + goto err_setup; + } + + clear_bit(__E1000_RESETTING, &adapter->flags); + return 0; +err_setup_tx: + e1000_free_all_rx_resources(adapter); +err_setup_rx: + adapter->rx_ring = rx_old; + adapter->tx_ring = tx_old; + kfree(rxdr); +err_alloc_rx: + kfree(txdr); +err_alloc_tx: + e1000_up(adapter); +err_setup: + clear_bit(__E1000_RESETTING, &adapter->flags); + return err; +} + +static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + struct e1000_hw *hw = &adapter->hw; + static const u32 test[] = + {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF}; + u8 __iomem *address = hw->hw_addr + reg; + u32 read; + int i; + + for (i = 0; i < ARRAY_SIZE(test); i++) { + writel(write & test[i], address); + read = readl(address); + if (read != (write & test[i] & mask)) { + DPRINTK(DRV, ERR, "pattern test reg %04X failed: " + "got 0x%08X expected 0x%08X\n", + reg, read, (write & test[i] & mask)); + *data = reg; + return true; + } + } + return false; +} + +static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg, + u32 mask, u32 write) +{ + struct e1000_hw *hw = &adapter->hw; + u8 __iomem *address = hw->hw_addr + reg; + u32 read; + + writel(write & mask, address); + read = readl(address); + if ((read & mask) != (write & mask)) { + DPRINTK(DRV, ERR, "set/check reg %04X test failed: " + "got 0x%08X expected 0x%08X\n", + reg, (read & mask), (write & mask)); + *data = reg; + return true; + } + return false; +} + +#define REG_PATTERN_TEST(reg, mask, write) \ + do { \ + if (reg_pattern_test(adapter, data, \ + (hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg, \ + mask, write)) \ + return 1; \ + } while (0) + +#define REG_SET_AND_CHECK(reg, mask, write) \ + do { \ + if (reg_set_and_check(adapter, data, \ + (hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg, \ + mask, write)) \ + return 1; \ + } while (0) + +static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) +{ + u32 value, before, after; + u32 i, toggle; + struct e1000_hw *hw = &adapter->hw; + + /* The status register is Read Only, so a write should fail. + * Some bits that get toggled are ignored. + */ + + /* there are several bits on newer hardware that are r/w */ + toggle = 0xFFFFF833; + + before = er32(STATUS); + value = (er32(STATUS) & toggle); + ew32(STATUS, toggle); + after = er32(STATUS) & toggle; + if (value != after) { + DPRINTK(DRV, ERR, "failed STATUS register test got: " + "0x%08X expected: 0x%08X\n", after, value); + *data = 1; + return 1; + } + /* restore previous status */ + ew32(STATUS, before); + + REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF); + + REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF); + REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8); + REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF); + REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF); + REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF); + + REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000); + + before = 0x06DFB3FE; + REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB); + REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000); + + if (hw->mac_type >= e1000_82543) { + + REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF); + REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF); + REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF); + REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF); + value = E1000_RAR_ENTRIES; + for (i = 0; i < value; i++) { + REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF, + 0xFFFFFFFF); + } + + } else { + + REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF); + REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF); + REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF); + REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF); + + } + + value = E1000_MC_TBL_SIZE; + for (i = 0; i < value; i++) + REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF); + + *data = 0; + return 0; +} + +static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + u16 temp; + u16 checksum = 0; + u16 i; + + *data = 0; + /* Read and add up the contents of the EEPROM */ + for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { + if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) { + *data = 1; + break; + } + checksum += temp; + } + + /* If Checksum is not Correct return error else test passed */ + if ((checksum != (u16)EEPROM_SUM) && !(*data)) + *data = 2; + + return *data; +} + +static irqreturn_t e1000_test_intr(int irq, void *data) +{ + struct net_device *netdev = (struct net_device *)data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + adapter->test_icr |= er32(ICR); + + return IRQ_HANDLED; +} + +static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) +{ + struct net_device *netdev = adapter->netdev; + u32 mask, i = 0; + bool shared_int = true; + u32 irq = adapter->pdev->irq; + struct e1000_hw *hw = &adapter->hw; + + *data = 0; + + /* NOTE: we don't test MSI interrupts here, yet */ + /* Hook up test interrupt handler just for this test */ + if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name, + netdev)) + shared_int = false; + else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, + netdev->name, netdev)) { + *data = 1; + return -1; + } + DPRINTK(HW, INFO, "testing %s interrupt\n", + (shared_int ? "shared" : "unshared")); + + /* Disable all the interrupts */ + ew32(IMC, 0xFFFFFFFF); + msleep(10); + + /* Test each interrupt */ + for (; i < 10; i++) { + + /* Interrupt to test */ + mask = 1 << i; + + if (!shared_int) { + /* Disable the interrupt to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMC, mask); + ew32(ICS, mask); + msleep(10); + + if (adapter->test_icr & mask) { + *data = 3; + break; + } + } + + /* Enable the interrupt to be reported in + * the cause register and then force the same + * interrupt and see if one gets posted. If + * an interrupt was not posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMS, mask); + ew32(ICS, mask); + msleep(10); + + if (!(adapter->test_icr & mask)) { + *data = 4; + break; + } + + if (!shared_int) { + /* Disable the other interrupts to be reported in + * the cause register and then force the other + * interrupts and see if any get posted. If + * an interrupt was posted to the bus, the + * test failed. + */ + adapter->test_icr = 0; + ew32(IMC, ~mask & 0x00007FFF); + ew32(ICS, ~mask & 0x00007FFF); + msleep(10); + + if (adapter->test_icr) { + *data = 5; + break; + } + } + } + + /* Disable all the interrupts */ + ew32(IMC, 0xFFFFFFFF); + msleep(10); + + /* Unhook test interrupt handler */ + free_irq(irq, netdev); + + return *data; +} + +static void e1000_free_desc_rings(struct e1000_adapter *adapter) +{ + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + int i; + + if (txdr->desc && txdr->buffer_info) { + for (i = 0; i < txdr->count; i++) { + if (txdr->buffer_info[i].dma) + pci_unmap_single(pdev, txdr->buffer_info[i].dma, + txdr->buffer_info[i].length, + PCI_DMA_TODEVICE); + if (txdr->buffer_info[i].skb) + dev_kfree_skb(txdr->buffer_info[i].skb); + } + } + + if (rxdr->desc && rxdr->buffer_info) { + for (i = 0; i < rxdr->count; i++) { + if (rxdr->buffer_info[i].dma) + pci_unmap_single(pdev, rxdr->buffer_info[i].dma, + rxdr->buffer_info[i].length, + PCI_DMA_FROMDEVICE); + if (rxdr->buffer_info[i].skb) + dev_kfree_skb(rxdr->buffer_info[i].skb); + } + } + + if (txdr->desc) { + pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma); + txdr->desc = NULL; + } + if (rxdr->desc) { + pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma); + rxdr->desc = NULL; + } + + kfree(txdr->buffer_info); + txdr->buffer_info = NULL; + kfree(rxdr->buffer_info); + rxdr->buffer_info = NULL; + + return; +} + +static int e1000_setup_desc_rings(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + u32 rctl; + int i, ret_val; + + /* Setup Tx descriptor ring and Tx buffers */ + + if (!txdr->count) + txdr->count = E1000_DEFAULT_TXD; + + txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_buffer), + GFP_KERNEL); + if (!txdr->buffer_info) { + ret_val = 1; + goto err_nomem; + } + + txdr->size = txdr->count * sizeof(struct e1000_tx_desc); + txdr->size = ALIGN(txdr->size, 4096); + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + if (!txdr->desc) { + ret_val = 2; + goto err_nomem; + } + memset(txdr->desc, 0, txdr->size); + txdr->next_to_use = txdr->next_to_clean = 0; + + ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF)); + ew32(TDBAH, ((u64)txdr->dma >> 32)); + ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc)); + ew32(TDH, 0); + ew32(TDT, 0); + ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | + E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT | + E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT); + + for (i = 0; i < txdr->count; i++) { + struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i); + struct sk_buff *skb; + unsigned int size = 1024; + + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) { + ret_val = 3; + goto err_nomem; + } + skb_put(skb, size); + txdr->buffer_info[i].skb = skb; + txdr->buffer_info[i].length = skb->len; + txdr->buffer_info[i].dma = + pci_map_single(pdev, skb->data, skb->len, + PCI_DMA_TODEVICE); + tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma); + tx_desc->lower.data = cpu_to_le32(skb->len); + tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP | + E1000_TXD_CMD_IFCS | + E1000_TXD_CMD_RPS); + tx_desc->upper.data = 0; + } + + /* Setup Rx descriptor ring and Rx buffers */ + + if (!rxdr->count) + rxdr->count = E1000_DEFAULT_RXD; + + rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer), + GFP_KERNEL); + if (!rxdr->buffer_info) { + ret_val = 4; + goto err_nomem; + } + + rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc); + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + if (!rxdr->desc) { + ret_val = 5; + goto err_nomem; + } + memset(rxdr->desc, 0, rxdr->size); + rxdr->next_to_use = rxdr->next_to_clean = 0; + + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF)); + ew32(RDBAH, ((u64)rxdr->dma >> 32)); + ew32(RDLEN, rxdr->size); + ew32(RDH, 0); + ew32(RDT, 0); + rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 | + E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); + ew32(RCTL, rctl); + + for (i = 0; i < rxdr->count; i++) { + struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i); + struct sk_buff *skb; + + skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL); + if (!skb) { + ret_val = 6; + goto err_nomem; + } + skb_reserve(skb, NET_IP_ALIGN); + rxdr->buffer_info[i].skb = skb; + rxdr->buffer_info[i].length = E1000_RXBUFFER_2048; + rxdr->buffer_info[i].dma = + pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048, + PCI_DMA_FROMDEVICE); + rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma); + memset(skb->data, 0x00, skb->len); + } + + return 0; + +err_nomem: + e1000_free_desc_rings(adapter); + return ret_val; +} + +static void e1000_phy_disable_receiver(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* Write out to PHY registers 29 and 30 to disable the Receiver. */ + e1000_write_phy_reg(hw, 29, 0x001F); + e1000_write_phy_reg(hw, 30, 0x8FFC); + e1000_write_phy_reg(hw, 29, 0x001A); + e1000_write_phy_reg(hw, 30, 0x8FF0); +} + +static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_reg; + + /* Because we reset the PHY above, we need to re-force TX_CLK in the + * Extended PHY Specific Control Register to 25MHz clock. This + * value defaults back to a 2.5MHz clock when the PHY is reset. + */ + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); + phy_reg |= M88E1000_EPSCR_TX_CLK_25; + e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, phy_reg); + + /* In addition, because of the s/w reset above, we need to enable + * CRS on TX. This must be set for both full and half duplex + * operation. + */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); + phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + e1000_write_phy_reg(hw, + M88E1000_PHY_SPEC_CTRL, phy_reg); +} + +static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl_reg; + u16 phy_reg; + + /* Setup the Device Control Register for PHY loopback test. */ + + ctrl_reg = er32(CTRL); + ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */ + E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_1000 | /* Force Speed to 1000 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + + ew32(CTRL, ctrl_reg); + + /* Read the PHY Specific Control Register (0x10) */ + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); + + /* Clear Auto-Crossover bits in PHY Specific Control Register + * (bits 6:5). + */ + phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE; + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg); + + /* Perform software reset on the PHY */ + e1000_phy_reset(hw); + + /* Have to setup TX_CLK and TX_CRS after software reset */ + e1000_phy_reset_clk_and_crs(adapter); + + e1000_write_phy_reg(hw, PHY_CTRL, 0x8100); + + /* Wait for reset to complete. */ + udelay(500); + + /* Have to setup TX_CLK and TX_CRS after software reset */ + e1000_phy_reset_clk_and_crs(adapter); + + /* Write out to PHY registers 29 and 30 to disable the Receiver. */ + e1000_phy_disable_receiver(adapter); + + /* Set the loopback bit in the PHY control register. */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + phy_reg |= MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + + /* Setup TX_CLK and TX_CRS one more time. */ + e1000_phy_reset_clk_and_crs(adapter); + + /* Check Phy Configuration */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + if (phy_reg != 0x4100) + return 9; + + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); + if (phy_reg != 0x0070) + return 10; + + e1000_read_phy_reg(hw, 29, &phy_reg); + if (phy_reg != 0x001A) + return 11; + + return 0; +} + +static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl_reg = 0; + u32 stat_reg = 0; + + hw->autoneg = false; + + if (hw->phy_type == e1000_phy_m88) { + /* Auto-MDI/MDIX Off */ + e1000_write_phy_reg(hw, + M88E1000_PHY_SPEC_CTRL, 0x0808); + /* reset to update Auto-MDI/MDIX */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x9140); + /* autoneg off */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x8140); + } + + ctrl_reg = er32(CTRL); + + /* force 1000, set loopback */ + e1000_write_phy_reg(hw, PHY_CTRL, 0x4140); + + /* Now set up the MAC to the same speed/duplex as the PHY. */ + ctrl_reg = er32(CTRL); + ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ + ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ + E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ + E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */ + E1000_CTRL_FD); /* Force Duplex to FULL */ + + if (hw->media_type == e1000_media_type_copper && + hw->phy_type == e1000_phy_m88) + ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ + else { + /* Set the ILOS bit on the fiber Nic is half + * duplex link is detected. */ + stat_reg = er32(STATUS); + if ((stat_reg & E1000_STATUS_FD) == 0) + ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU); + } + + ew32(CTRL, ctrl_reg); + + /* Disable the receiver on the PHY so when a cable is plugged in, the + * PHY does not begin to autoneg when a cable is reconnected to the NIC. + */ + if (hw->phy_type == e1000_phy_m88) + e1000_phy_disable_receiver(adapter); + + udelay(500); + + return 0; +} + +static int e1000_set_phy_loopback(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_reg = 0; + u16 count = 0; + + switch (hw->mac_type) { + case e1000_82543: + if (hw->media_type == e1000_media_type_copper) { + /* Attempt to setup Loopback mode on Non-integrated PHY. + * Some PHY registers get corrupted at random, so + * attempt this 10 times. + */ + while (e1000_nonintegrated_phy_loopback(adapter) && + count++ < 10); + if (count < 11) + return 0; + } + break; + + case e1000_82544: + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + return e1000_integrated_phy_loopback(adapter); + break; + default: + /* Default PHY loopback work is to read the MII + * control register and assert bit 14 (loopback mode). + */ + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + phy_reg |= MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + return 0; + break; + } + + return 8; +} + +static int e1000_setup_loopback_test(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { + switch (hw->mac_type) { + case e1000_82545: + case e1000_82546: + case e1000_82545_rev_3: + case e1000_82546_rev_3: + return e1000_set_phy_loopback(adapter); + break; + default: + rctl = er32(RCTL); + rctl |= E1000_RCTL_LBM_TCVR; + ew32(RCTL, rctl); + return 0; + } + } else if (hw->media_type == e1000_media_type_copper) + return e1000_set_phy_loopback(adapter); + + return 7; +} + +static void e1000_loopback_cleanup(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + u16 phy_reg; + + rctl = er32(RCTL); + rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); + ew32(RCTL, rctl); + + switch (hw->mac_type) { + case e1000_82545: + case e1000_82546: + case e1000_82545_rev_3: + case e1000_82546_rev_3: + default: + hw->autoneg = true; + e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); + if (phy_reg & MII_CR_LOOPBACK) { + phy_reg &= ~MII_CR_LOOPBACK; + e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); + e1000_phy_reset(hw); + } + break; + } +} + +static void e1000_create_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + memset(skb->data, 0xFF, frame_size); + frame_size &= ~1; + memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); + memset(&skb->data[frame_size / 2 + 10], 0xBE, 1); + memset(&skb->data[frame_size / 2 + 12], 0xAF, 1); +} + +static int e1000_check_lbtest_frame(struct sk_buff *skb, + unsigned int frame_size) +{ + frame_size &= ~1; + if (*(skb->data + 3) == 0xFF) { + if ((*(skb->data + frame_size / 2 + 10) == 0xBE) && + (*(skb->data + frame_size / 2 + 12) == 0xAF)) { + return 0; + } + } + return 13; +} + +static int e1000_run_loopback_test(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *txdr = &adapter->test_tx_ring; + struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; + struct pci_dev *pdev = adapter->pdev; + int i, j, k, l, lc, good_cnt, ret_val=0; + unsigned long time; + + ew32(RDT, rxdr->count - 1); + + /* Calculate the loop count based on the largest descriptor ring + * The idea is to wrap the largest ring a number of times using 64 + * send/receive pairs during each loop + */ + + if (rxdr->count <= txdr->count) + lc = ((txdr->count / 64) * 2) + 1; + else + lc = ((rxdr->count / 64) * 2) + 1; + + k = l = 0; + for (j = 0; j <= lc; j++) { /* loop count loop */ + for (i = 0; i < 64; i++) { /* send the packets */ + e1000_create_lbtest_frame(txdr->buffer_info[i].skb, + 1024); + pci_dma_sync_single_for_device(pdev, + txdr->buffer_info[k].dma, + txdr->buffer_info[k].length, + PCI_DMA_TODEVICE); + if (unlikely(++k == txdr->count)) k = 0; + } + ew32(TDT, k); + msleep(200); + time = jiffies; /* set the start time for the receive */ + good_cnt = 0; + do { /* receive the sent packets */ + pci_dma_sync_single_for_cpu(pdev, + rxdr->buffer_info[l].dma, + rxdr->buffer_info[l].length, + PCI_DMA_FROMDEVICE); + + ret_val = e1000_check_lbtest_frame( + rxdr->buffer_info[l].skb, + 1024); + if (!ret_val) + good_cnt++; + if (unlikely(++l == rxdr->count)) l = 0; + /* time + 20 msecs (200 msecs on 2.4) is more than + * enough time to complete the receives, if it's + * exceeded, break and error off + */ + } while (good_cnt < 64 && jiffies < (time + 20)); + if (good_cnt != 64) { + ret_val = 13; /* ret_val is the same as mis-compare */ + break; + } + if (jiffies >= (time + 2)) { + ret_val = 14; /* error code for time out error */ + break; + } + } /* end loop count loop */ + return ret_val; +} + +static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data) +{ + *data = e1000_setup_desc_rings(adapter); + if (*data) + goto out; + *data = e1000_setup_loopback_test(adapter); + if (*data) + goto err_loopback; + *data = e1000_run_loopback_test(adapter); + e1000_loopback_cleanup(adapter); + +err_loopback: + e1000_free_desc_rings(adapter); +out: + return *data; +} + +static int e1000_link_test(struct e1000_adapter *adapter, u64 *data) +{ + struct e1000_hw *hw = &adapter->hw; + *data = 0; + if (hw->media_type == e1000_media_type_internal_serdes) { + int i = 0; + hw->serdes_has_link = false; + + /* On some blade server designs, link establishment + * could take as long as 2-3 minutes */ + do { + e1000_check_for_link(hw); + if (hw->serdes_has_link) + return *data; + msleep(20); + } while (i++ < 3750); + + *data = 1; + } else { + e1000_check_for_link(hw); + if (hw->autoneg) /* if auto_neg is set wait for it */ + msleep(4000); + + if (!(er32(STATUS) & E1000_STATUS_LU)) { + *data = 1; + } + } + return *data; +} + +static int e1000_get_sset_count(struct net_device *netdev, int sset) +{ + switch (sset) { + case ETH_SS_TEST: + return E1000_TEST_LEN; + case ETH_SS_STATS: + return E1000_STATS_LEN; + default: + return -EOPNOTSUPP; + } +} + +static void e1000_diag_test(struct net_device *netdev, + struct ethtool_test *eth_test, u64 *data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + bool if_running = netif_running(netdev); + + set_bit(__E1000_TESTING, &adapter->flags); + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + /* Offline tests */ + + /* save speed, duplex, autoneg settings */ + u16 autoneg_advertised = hw->autoneg_advertised; + u8 forced_speed_duplex = hw->forced_speed_duplex; + u8 autoneg = hw->autoneg; + + DPRINTK(HW, INFO, "offline testing starting\n"); + + /* Link test performed before hardware reset so autoneg doesn't + * interfere with test result */ + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + if (if_running) + /* indicate we're in test mode */ + dev_close(netdev); + else + e1000_reset(adapter); + + if (e1000_reg_test(adapter, &data[0])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + if (e1000_eeprom_test(adapter, &data[1])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + if (e1000_intr_test(adapter, &data[2])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + e1000_reset(adapter); + /* make sure the phy is powered up */ + e1000_power_up_phy(adapter); + if (e1000_loopback_test(adapter, &data[3])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* restore speed, duplex, autoneg settings */ + hw->autoneg_advertised = autoneg_advertised; + hw->forced_speed_duplex = forced_speed_duplex; + hw->autoneg = autoneg; + + e1000_reset(adapter); + clear_bit(__E1000_TESTING, &adapter->flags); + if (if_running) + dev_open(netdev); + } else { + DPRINTK(HW, INFO, "online testing starting\n"); + /* Online tests */ + if (e1000_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + /* Online tests aren't run; pass by default */ + data[0] = 0; + data[1] = 0; + data[2] = 0; + data[3] = 0; + + clear_bit(__E1000_TESTING, &adapter->flags); + } + msleep_interruptible(4 * 1000); +} + +static int e1000_wol_exclusion(struct e1000_adapter *adapter, + struct ethtool_wolinfo *wol) +{ + struct e1000_hw *hw = &adapter->hw; + int retval = 1; /* fail by default */ + + switch (hw->device_id) { + case E1000_DEV_ID_82542: + case E1000_DEV_ID_82543GC_FIBER: + case E1000_DEV_ID_82543GC_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER: + case E1000_DEV_ID_82546GB_PCIE: + /* these don't support WoL at all */ + wol->supported = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + /* Wake events not supported on port B */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) { + wol->supported = 0; + break; + } + /* return success for non excluded adapter ports */ + retval = 0; + break; + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* quad port adapters only support WoL on port A */ + if (!adapter->quad_port_a) { + wol->supported = 0; + break; + } + /* return success for non excluded adapter ports */ + retval = 0; + break; + default: + /* dual port cards only support WoL on port A from now on + * unless it was enabled in the eeprom for port B + * so exclude FUNC_1 ports from having WoL enabled */ + if (er32(STATUS) & E1000_STATUS_FUNC_1 && + !adapter->eeprom_wol) { + wol->supported = 0; + break; + } + + retval = 0; + } + + return retval; +} + +static void e1000_get_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + wol->supported = WAKE_UCAST | WAKE_MCAST | + WAKE_BCAST | WAKE_MAGIC; + wol->wolopts = 0; + + /* this function will set ->supported = 0 and return 1 if wol is not + * supported by this hardware */ + if (e1000_wol_exclusion(adapter, wol) || + !device_can_wakeup(&adapter->pdev->dev)) + return; + + /* apply any specific unsupported masks here */ + switch (hw->device_id) { + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* KSP3 does not suppport UCAST wake-ups */ + wol->supported &= ~WAKE_UCAST; + + if (adapter->wol & E1000_WUFC_EX) + DPRINTK(DRV, ERR, "Interface does not support " + "directed (unicast) frame wake-up packets\n"); + break; + default: + break; + } + + if (adapter->wol & E1000_WUFC_EX) + wol->wolopts |= WAKE_UCAST; + if (adapter->wol & E1000_WUFC_MC) + wol->wolopts |= WAKE_MCAST; + if (adapter->wol & E1000_WUFC_BC) + wol->wolopts |= WAKE_BCAST; + if (adapter->wol & E1000_WUFC_MAG) + wol->wolopts |= WAKE_MAGIC; + + return; +} + +static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) + return -EOPNOTSUPP; + + if (e1000_wol_exclusion(adapter, wol) || + !device_can_wakeup(&adapter->pdev->dev)) + return wol->wolopts ? -EOPNOTSUPP : 0; + + switch (hw->device_id) { + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + if (wol->wolopts & WAKE_UCAST) { + DPRINTK(DRV, ERR, "Interface does not support " + "directed (unicast) frame wake-up packets\n"); + return -EOPNOTSUPP; + } + break; + default: + break; + } + + /* these settings will always override what we currently have */ + adapter->wol = 0; + + if (wol->wolopts & WAKE_UCAST) + adapter->wol |= E1000_WUFC_EX; + if (wol->wolopts & WAKE_MCAST) + adapter->wol |= E1000_WUFC_MC; + if (wol->wolopts & WAKE_BCAST) + adapter->wol |= E1000_WUFC_BC; + if (wol->wolopts & WAKE_MAGIC) + adapter->wol |= E1000_WUFC_MAG; + + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + + return 0; +} + +/* toggle LED 4 times per second = 2 "blinks" per second */ +#define E1000_ID_INTERVAL (HZ/4) + +/* bit defines for adapter->led_status */ +#define E1000_LED_ON 0 + +static void e1000_led_blink_callback(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *) data; + struct e1000_hw *hw = &adapter->hw; + + if (test_and_change_bit(E1000_LED_ON, &adapter->led_status)) + e1000_led_off(hw); + else + e1000_led_on(hw); + + mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL); +} + +static int e1000_phys_id(struct net_device *netdev, u32 data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (!data) + data = INT_MAX; + + if (!adapter->blink_timer.function) { + init_timer(&adapter->blink_timer); + adapter->blink_timer.function = e1000_led_blink_callback; + adapter->blink_timer.data = (unsigned long)adapter; + } + e1000_setup_led(hw); + mod_timer(&adapter->blink_timer, jiffies); + msleep_interruptible(data * 1000); + del_timer_sync(&adapter->blink_timer); + + e1000_led_off(hw); + clear_bit(E1000_LED_ON, &adapter->led_status); + e1000_cleanup_led(hw); + + return 0; +} + +static int e1000_get_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + if (adapter->hw.mac_type < e1000_82545) + return -EOPNOTSUPP; + + if (adapter->itr_setting <= 3) + ec->rx_coalesce_usecs = adapter->itr_setting; + else + ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting; + + return 0; +} + +static int e1000_set_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + if (hw->mac_type < e1000_82545) + return -EOPNOTSUPP; + + if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) || + ((ec->rx_coalesce_usecs > 3) && + (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) || + (ec->rx_coalesce_usecs == 2)) + return -EINVAL; + + if (ec->rx_coalesce_usecs <= 3) { + adapter->itr = 20000; + adapter->itr_setting = ec->rx_coalesce_usecs; + } else { + adapter->itr = (1000000 / ec->rx_coalesce_usecs); + adapter->itr_setting = adapter->itr & ~3; + } + + if (adapter->itr_setting != 0) + ew32(ITR, 1000000000 / (adapter->itr * 256)); + else + ew32(ITR, 0); + + return 0; +} + +static int e1000_nway_reset(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + return 0; +} + +static void e1000_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + int i; + char *p = NULL; + + e1000_update_stats(adapter); + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + switch (e1000_gstrings_stats[i].type) { + case NETDEV_STATS: + p = (char *) netdev + + e1000_gstrings_stats[i].stat_offset; + break; + case E1000_STATS: + p = (char *) adapter + + e1000_gstrings_stats[i].stat_offset; + break; + } + + data[i] = (e1000_gstrings_stats[i].sizeof_stat == + sizeof(u64)) ? *(u64 *)p : *(u32 *)p; + } +/* BUG_ON(i != E1000_STATS_LEN); */ +} + +static void e1000_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + u8 *p = data; + int i; + + switch (stringset) { + case ETH_SS_TEST: + memcpy(data, *e1000_gstrings_test, + sizeof(e1000_gstrings_test)); + break; + case ETH_SS_STATS: + for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { + memcpy(p, e1000_gstrings_stats[i].stat_string, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } +/* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */ + break; + } +} + +static const struct ethtool_ops e1000_ethtool_ops = { + .get_settings = e1000_get_settings, + .set_settings = e1000_set_settings, + .get_drvinfo = e1000_get_drvinfo, + .get_regs_len = e1000_get_regs_len, + .get_regs = e1000_get_regs, + .get_wol = e1000_get_wol, + .set_wol = e1000_set_wol, + .get_msglevel = e1000_get_msglevel, + .set_msglevel = e1000_set_msglevel, + .nway_reset = e1000_nway_reset, + .get_link = ethtool_op_get_link, + .get_eeprom_len = e1000_get_eeprom_len, + .get_eeprom = e1000_get_eeprom, + .set_eeprom = e1000_set_eeprom, + .get_ringparam = e1000_get_ringparam, + .set_ringparam = e1000_set_ringparam, + .get_pauseparam = e1000_get_pauseparam, + .set_pauseparam = e1000_set_pauseparam, + .get_rx_csum = e1000_get_rx_csum, + .set_rx_csum = e1000_set_rx_csum, + .get_tx_csum = e1000_get_tx_csum, + .set_tx_csum = e1000_set_tx_csum, + .set_sg = ethtool_op_set_sg, + .set_tso = e1000_set_tso, + .self_test = e1000_diag_test, + .get_strings = e1000_get_strings, + .phys_id = e1000_phys_id, + .get_ethtool_stats = e1000_get_ethtool_stats, + .get_sset_count = e1000_get_sset_count, + .get_coalesce = e1000_get_coalesce, + .set_coalesce = e1000_set_coalesce, +}; + +void e1000_set_ethtool_ops(struct net_device *netdev) +{ + SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops); +} diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_hw-2.6.31-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_hw-2.6.31-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,8878 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* e1000_hw.c + * Shared functions for accessing and configuring the MAC + */ + + +#include "e1000_hw-2.6.31-ethercat.h" + +static s32 e1000_swfw_sync_acquire(struct e1000_hw *hw, u16 mask); +static void e1000_swfw_sync_release(struct e1000_hw *hw, u16 mask); +static s32 e1000_read_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 *data); +static s32 e1000_write_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 data); +static s32 e1000_get_software_semaphore(struct e1000_hw *hw); +static void e1000_release_software_semaphore(struct e1000_hw *hw); + +static u8 e1000_arc_subsystem_valid(struct e1000_hw *hw); +static s32 e1000_check_downshift(struct e1000_hw *hw); +static s32 e1000_check_polarity(struct e1000_hw *hw, + e1000_rev_polarity *polarity); +static void e1000_clear_hw_cntrs(struct e1000_hw *hw); +static void e1000_clear_vfta(struct e1000_hw *hw); +static s32 e1000_commit_shadow_ram(struct e1000_hw *hw); +static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, + bool link_up); +static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw); +static s32 e1000_detect_gig_phy(struct e1000_hw *hw); +static s32 e1000_erase_ich8_4k_segment(struct e1000_hw *hw, u32 bank); +static s32 e1000_get_auto_rd_done(struct e1000_hw *hw); +static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, + u16 *max_length); +static s32 e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw); +static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw); +static s32 e1000_get_software_flag(struct e1000_hw *hw); +static s32 e1000_ich8_cycle_init(struct e1000_hw *hw); +static s32 e1000_ich8_flash_cycle(struct e1000_hw *hw, u32 timeout); +static s32 e1000_id_led_init(struct e1000_hw *hw); +static s32 e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, + u32 cnf_base_addr, + u32 cnf_size); +static s32 e1000_init_lcd_from_nvm(struct e1000_hw *hw); +static void e1000_init_rx_addrs(struct e1000_hw *hw); +static void e1000_initialize_hardware_bits(struct e1000_hw *hw); +static bool e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw); +static s32 e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw); +static s32 e1000_mng_enable_host_if(struct e1000_hw *hw); +static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer, u16 length, + u16 offset, u8 *sum); +static s32 e1000_mng_write_cmd_header(struct e1000_hw* hw, + struct e1000_host_mng_command_header + *hdr); +static s32 e1000_mng_write_commit(struct e1000_hw *hw); +static s32 e1000_phy_ife_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static s32 e1000_read_eeprom_eerd(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static s32 e1000_write_eeprom_eewr(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static s32 e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd); +static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw); +static s32 e1000_read_ich8_byte(struct e1000_hw *hw, u32 index, u8 *data); +static s32 e1000_verify_write_ich8_byte(struct e1000_hw *hw, u32 index, + u8 byte); +static s32 e1000_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte); +static s32 e1000_read_ich8_word(struct e1000_hw *hw, u32 index, u16 *data); +static s32 e1000_read_ich8_data(struct e1000_hw *hw, u32 index, u32 size, + u16 *data); +static s32 e1000_write_ich8_data(struct e1000_hw *hw, u32 index, u32 size, + u16 data); +static s32 e1000_read_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static s32 e1000_write_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static void e1000_release_software_flag(struct e1000_hw *hw); +static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active); +static s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active); +static s32 e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, u32 no_snoop); +static void e1000_set_pci_express_master_disable(struct e1000_hw *hw); +static s32 e1000_wait_autoneg(struct e1000_hw *hw); +static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value); +static s32 e1000_set_phy_type(struct e1000_hw *hw); +static void e1000_phy_init_script(struct e1000_hw *hw); +static s32 e1000_setup_copper_link(struct e1000_hw *hw); +static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw); +static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw); +static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw); +static s32 e1000_config_mac_to_phy(struct e1000_hw *hw); +static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl); +static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl); +static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, + u16 count); +static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw); +static s32 e1000_phy_reset_dsp(struct e1000_hw *hw); +static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data); +static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data); +static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw); +static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd); +static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd); +static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, u16 count); +static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 phy_data); +static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw,u32 reg_addr, + u16 *phy_data); +static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count); +static s32 e1000_acquire_eeprom(struct e1000_hw *hw); +static void e1000_release_eeprom(struct e1000_hw *hw); +static void e1000_standby_eeprom(struct e1000_hw *hw); +static s32 e1000_set_vco_speed(struct e1000_hw *hw); +static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw); +static s32 e1000_set_phy_mode(struct e1000_hw *hw); +static s32 e1000_host_if_read_cookie(struct e1000_hw *hw, u8 *buffer); +static u8 e1000_calculate_mng_checksum(char *buffer, u32 length); +static s32 e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, u16 duplex); +static s32 e1000_configure_kmrn_for_1000(struct e1000_hw *hw); +static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data); +static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data); + +/* IGP cable length table */ +static const +u16 e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] = + { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25, + 25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60, + 60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90, + 90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, + 100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, + 110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120}; + +static const +u16 e1000_igp_2_cable_length_table[IGP02E1000_AGC_LENGTH_TABLE_SIZE] = + { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21, + 0, 0, 0, 3, 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41, + 6, 10, 14, 18, 22, 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61, + 21, 26, 31, 35, 40, 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82, + 40, 45, 51, 56, 61, 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104, + 60, 66, 72, 77, 82, 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121, + 83, 89, 95, 100, 105, 109, 113, 116, 119, 122, 124, + 104, 109, 114, 118, 121, 124}; + +static DEFINE_SPINLOCK(e1000_eeprom_lock); + +/****************************************************************************** + * Set the phy type member in the hw struct. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_set_phy_type(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_set_phy_type"); + + if (hw->mac_type == e1000_undefined) + return -E1000_ERR_PHY_TYPE; + + switch (hw->phy_id) { + case M88E1000_E_PHY_ID: + case M88E1000_I_PHY_ID: + case M88E1011_I_PHY_ID: + case M88E1111_I_PHY_ID: + hw->phy_type = e1000_phy_m88; + break; + case IGP01E1000_I_PHY_ID: + if (hw->mac_type == e1000_82541 || + hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547 || + hw->mac_type == e1000_82547_rev_2) { + hw->phy_type = e1000_phy_igp; + break; + } + case IGP03E1000_E_PHY_ID: + hw->phy_type = e1000_phy_igp_3; + break; + case IFE_E_PHY_ID: + case IFE_PLUS_E_PHY_ID: + case IFE_C_E_PHY_ID: + hw->phy_type = e1000_phy_ife; + break; + case GG82563_E_PHY_ID: + if (hw->mac_type == e1000_80003es2lan) { + hw->phy_type = e1000_phy_gg82563; + break; + } + /* Fall Through */ + default: + /* Should never have loaded on this device */ + hw->phy_type = e1000_phy_undefined; + return -E1000_ERR_PHY_TYPE; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * IGP phy init script - initializes the GbE PHY + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_phy_init_script(struct e1000_hw *hw) +{ + u32 ret_val; + u16 phy_saved_data; + + DEBUGFUNC("e1000_phy_init_script"); + + if (hw->phy_init_script) { + msleep(20); + + /* Save off the current value of register 0x2F5B to be restored at + * the end of this routine. */ + ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + /* Disabled the PHY transmitter */ + e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + msleep(20); + + e1000_write_phy_reg(hw,0x0000,0x0140); + + msleep(5); + + switch (hw->mac_type) { + case e1000_82541: + case e1000_82547: + e1000_write_phy_reg(hw, 0x1F95, 0x0001); + + e1000_write_phy_reg(hw, 0x1F71, 0xBD21); + + e1000_write_phy_reg(hw, 0x1F79, 0x0018); + + e1000_write_phy_reg(hw, 0x1F30, 0x1600); + + e1000_write_phy_reg(hw, 0x1F31, 0x0014); + + e1000_write_phy_reg(hw, 0x1F32, 0x161C); + + e1000_write_phy_reg(hw, 0x1F94, 0x0003); + + e1000_write_phy_reg(hw, 0x1F96, 0x003F); + + e1000_write_phy_reg(hw, 0x2010, 0x0008); + break; + + case e1000_82541_rev_2: + case e1000_82547_rev_2: + e1000_write_phy_reg(hw, 0x1F73, 0x0099); + break; + default: + break; + } + + e1000_write_phy_reg(hw, 0x0000, 0x3300); + + msleep(20); + + /* Now enable the transmitter */ + e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (hw->mac_type == e1000_82547) { + u16 fused, fine, coarse; + + /* Move to analog registers page */ + e1000_read_phy_reg(hw, IGP01E1000_ANALOG_SPARE_FUSE_STATUS, &fused); + + if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) { + e1000_read_phy_reg(hw, IGP01E1000_ANALOG_FUSE_STATUS, &fused); + + fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK; + coarse = fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK; + + if (coarse > IGP01E1000_ANALOG_FUSE_COARSE_THRESH) { + coarse -= IGP01E1000_ANALOG_FUSE_COARSE_10; + fine -= IGP01E1000_ANALOG_FUSE_FINE_1; + } else if (coarse == IGP01E1000_ANALOG_FUSE_COARSE_THRESH) + fine -= IGP01E1000_ANALOG_FUSE_FINE_10; + + fused = (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) | + (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) | + (coarse & IGP01E1000_ANALOG_FUSE_COARSE_MASK); + + e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_CONTROL, fused); + e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_BYPASS, + IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL); + } + } + } +} + +/****************************************************************************** + * Set the mac type member in the hw struct. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_set_mac_type(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_set_mac_type"); + + switch (hw->device_id) { + case E1000_DEV_ID_82542: + switch (hw->revision_id) { + case E1000_82542_2_0_REV_ID: + hw->mac_type = e1000_82542_rev2_0; + break; + case E1000_82542_2_1_REV_ID: + hw->mac_type = e1000_82542_rev2_1; + break; + default: + /* Invalid 82542 revision ID */ + return -E1000_ERR_MAC_TYPE; + } + break; + case E1000_DEV_ID_82543GC_FIBER: + case E1000_DEV_ID_82543GC_COPPER: + hw->mac_type = e1000_82543; + break; + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + hw->mac_type = e1000_82544; + break; + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + hw->mac_type = e1000_82540; + break; + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + hw->mac_type = e1000_82545; + break; + case E1000_DEV_ID_82545GM_COPPER: + case E1000_DEV_ID_82545GM_FIBER: + case E1000_DEV_ID_82545GM_SERDES: + hw->mac_type = e1000_82545_rev_3; + break; + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + hw->mac_type = e1000_82546; + break; + case E1000_DEV_ID_82546GB_COPPER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82546GB_SERDES: + case E1000_DEV_ID_82546GB_PCIE: + case E1000_DEV_ID_82546GB_QUAD_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + hw->mac_type = e1000_82546_rev_3; + break; + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER_LOM: + hw->mac_type = e1000_82541; + break; + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + hw->mac_type = e1000_82541_rev_2; + break; + case E1000_DEV_ID_82547EI: + case E1000_DEV_ID_82547EI_MOBILE: + hw->mac_type = e1000_82547; + break; + case E1000_DEV_ID_82547GI: + hw->mac_type = e1000_82547_rev_2; + break; + case E1000_DEV_ID_82571EB_COPPER: + case E1000_DEV_ID_82571EB_FIBER: + case E1000_DEV_ID_82571EB_SERDES: + case E1000_DEV_ID_82571EB_SERDES_DUAL: + case E1000_DEV_ID_82571EB_SERDES_QUAD: + case E1000_DEV_ID_82571EB_QUAD_COPPER: + case E1000_DEV_ID_82571PT_QUAD_COPPER: + case E1000_DEV_ID_82571EB_QUAD_FIBER: + case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE: + hw->mac_type = e1000_82571; + break; + case E1000_DEV_ID_82572EI_COPPER: + case E1000_DEV_ID_82572EI_FIBER: + case E1000_DEV_ID_82572EI_SERDES: + case E1000_DEV_ID_82572EI: + hw->mac_type = e1000_82572; + break; + case E1000_DEV_ID_82573E: + case E1000_DEV_ID_82573E_IAMT: + case E1000_DEV_ID_82573L: + hw->mac_type = e1000_82573; + break; + case E1000_DEV_ID_80003ES2LAN_COPPER_SPT: + case E1000_DEV_ID_80003ES2LAN_SERDES_SPT: + case E1000_DEV_ID_80003ES2LAN_COPPER_DPT: + case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: + hw->mac_type = e1000_80003es2lan; + break; + case E1000_DEV_ID_ICH8_IGP_M_AMT: + case E1000_DEV_ID_ICH8_IGP_AMT: + case E1000_DEV_ID_ICH8_IGP_C: + case E1000_DEV_ID_ICH8_IFE: + case E1000_DEV_ID_ICH8_IFE_GT: + case E1000_DEV_ID_ICH8_IFE_G: + case E1000_DEV_ID_ICH8_IGP_M: + hw->mac_type = e1000_ich8lan; + break; + default: + /* Should never have loaded on this device */ + return -E1000_ERR_MAC_TYPE; + } + + switch (hw->mac_type) { + case e1000_ich8lan: + hw->swfwhw_semaphore_present = true; + hw->asf_firmware_present = true; + break; + case e1000_80003es2lan: + hw->swfw_sync_present = true; + /* fall through */ + case e1000_82571: + case e1000_82572: + case e1000_82573: + hw->eeprom_semaphore_present = true; + /* fall through */ + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + hw->asf_firmware_present = true; + break; + default: + break; + } + + /* The 82543 chip does not count tx_carrier_errors properly in + * FD mode + */ + if (hw->mac_type == e1000_82543) + hw->bad_tx_carr_stats_fd = true; + + /* capable of receiving management packets to the host */ + if (hw->mac_type >= e1000_82571) + hw->has_manc2h = true; + + /* In rare occasions, ESB2 systems would end up started without + * the RX unit being turned on. + */ + if (hw->mac_type == e1000_80003es2lan) + hw->rx_needs_kicking = true; + + if (hw->mac_type > e1000_82544) + hw->has_smbus = true; + + return E1000_SUCCESS; +} + +/***************************************************************************** + * Set media type and TBI compatibility. + * + * hw - Struct containing variables accessed by shared code + * **************************************************************************/ +void e1000_set_media_type(struct e1000_hw *hw) +{ + u32 status; + + DEBUGFUNC("e1000_set_media_type"); + + if (hw->mac_type != e1000_82543) { + /* tbi_compatibility is only valid on 82543 */ + hw->tbi_compatibility_en = false; + } + + switch (hw->device_id) { + case E1000_DEV_ID_82545GM_SERDES: + case E1000_DEV_ID_82546GB_SERDES: + case E1000_DEV_ID_82571EB_SERDES: + case E1000_DEV_ID_82571EB_SERDES_DUAL: + case E1000_DEV_ID_82571EB_SERDES_QUAD: + case E1000_DEV_ID_82572EI_SERDES: + case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: + hw->media_type = e1000_media_type_internal_serdes; + break; + default: + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + hw->media_type = e1000_media_type_fiber; + break; + case e1000_ich8lan: + case e1000_82573: + /* The STATUS_TBIMODE bit is reserved or reused for the this + * device. + */ + hw->media_type = e1000_media_type_copper; + break; + default: + status = er32(STATUS); + if (status & E1000_STATUS_TBIMODE) { + hw->media_type = e1000_media_type_fiber; + /* tbi_compatibility not valid on fiber */ + hw->tbi_compatibility_en = false; + } else { + hw->media_type = e1000_media_type_copper; + } + break; + } + } +} + +/****************************************************************************** + * Reset the transmit and receive units; mask and clear all interrupts. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_reset_hw(struct e1000_hw *hw) +{ + u32 ctrl; + u32 ctrl_ext; + u32 icr; + u32 manc; + u32 led_ctrl; + u32 timeout; + u32 extcnf_ctrl; + s32 ret_val; + + DEBUGFUNC("e1000_reset_hw"); + + /* For 82542 (rev 2.0), disable MWI before issuing a device reset */ + if (hw->mac_type == e1000_82542_rev2_0) { + DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); + e1000_pci_clear_mwi(hw); + } + + if (hw->bus_type == e1000_bus_type_pci_express) { + /* Prevent the PCI-E bus from sticking if there is no TLP connection + * on the last TLP read/write transaction when MAC is reset. + */ + if (e1000_disable_pciex_master(hw) != E1000_SUCCESS) { + DEBUGOUT("PCI-E Master disable polling has failed.\n"); + } + } + + /* Clear interrupt mask to stop board from generating interrupts */ + DEBUGOUT("Masking off all interrupts\n"); + ew32(IMC, 0xffffffff); + + /* Disable the Transmit and Receive units. Then delay to allow + * any pending transactions to complete before we hit the MAC with + * the global reset. + */ + ew32(RCTL, 0); + ew32(TCTL, E1000_TCTL_PSP); + E1000_WRITE_FLUSH(); + + /* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */ + hw->tbi_compatibility_on = false; + + /* Delay to allow any outstanding PCI transactions to complete before + * resetting the device + */ + msleep(10); + + ctrl = er32(CTRL); + + /* Must reset the PHY before resetting the MAC */ + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + ew32(CTRL, (ctrl | E1000_CTRL_PHY_RST)); + msleep(5); + } + + /* Must acquire the MDIO ownership before MAC reset. + * Ownership defaults to firmware after a reset. */ + if (hw->mac_type == e1000_82573) { + timeout = 10; + + extcnf_ctrl = er32(EXTCNF_CTRL); + extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; + + do { + ew32(EXTCNF_CTRL, extcnf_ctrl); + extcnf_ctrl = er32(EXTCNF_CTRL); + + if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP) + break; + else + extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; + + msleep(2); + timeout--; + } while (timeout); + } + + /* Workaround for ICH8 bit corruption issue in FIFO memory */ + if (hw->mac_type == e1000_ich8lan) { + /* Set Tx and Rx buffer allocation to 8k apiece. */ + ew32(PBA, E1000_PBA_8K); + /* Set Packet Buffer Size to 16k. */ + ew32(PBS, E1000_PBS_16K); + } + + /* Issue a global reset to the MAC. This will reset the chip's + * transmit, receive, DMA, and link units. It will not effect + * the current PCI configuration. The global reset bit is self- + * clearing, and should clear within a microsecond. + */ + DEBUGOUT("Issuing a global reset to MAC\n"); + + switch (hw->mac_type) { + case e1000_82544: + case e1000_82540: + case e1000_82545: + case e1000_82546: + case e1000_82541: + case e1000_82541_rev_2: + /* These controllers can't ack the 64-bit write when issuing the + * reset, so use IO-mapping as a workaround to issue the reset */ + E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST)); + break; + case e1000_82545_rev_3: + case e1000_82546_rev_3: + /* Reset is performed on a shadow of the control register */ + ew32(CTRL_DUP, (ctrl | E1000_CTRL_RST)); + break; + case e1000_ich8lan: + if (!hw->phy_reset_disable && + e1000_check_phy_reset_block(hw) == E1000_SUCCESS) { + /* e1000_ich8lan PHY HW reset requires MAC CORE reset + * at the same time to make sure the interface between + * MAC and the external PHY is reset. + */ + ctrl |= E1000_CTRL_PHY_RST; + } + + e1000_get_software_flag(hw); + ew32(CTRL, (ctrl | E1000_CTRL_RST)); + msleep(5); + break; + default: + ew32(CTRL, (ctrl | E1000_CTRL_RST)); + break; + } + + /* After MAC reset, force reload of EEPROM to restore power-on settings to + * device. Later controllers reload the EEPROM automatically, so just wait + * for reload to complete. + */ + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* Wait for reset to complete */ + udelay(10); + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_EE_RST; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + /* Wait for EEPROM reload */ + msleep(2); + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + /* Wait for EEPROM reload */ + msleep(20); + break; + case e1000_82573: + if (!e1000_is_onboard_nvm_eeprom(hw)) { + udelay(10); + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_EE_RST; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + } + /* fall through */ + default: + /* Auto read done will delay 5ms or poll based on mac type */ + ret_val = e1000_get_auto_rd_done(hw); + if (ret_val) + return ret_val; + break; + } + + /* Disable HW ARPs on ASF enabled adapters */ + if (hw->mac_type >= e1000_82540 && hw->mac_type <= e1000_82547_rev_2) { + manc = er32(MANC); + manc &= ~(E1000_MANC_ARP_EN); + ew32(MANC, manc); + } + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + e1000_phy_init_script(hw); + + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* Clear interrupt mask to stop board from generating interrupts */ + DEBUGOUT("Masking off all interrupts\n"); + ew32(IMC, 0xffffffff); + + /* Clear any pending interrupt events. */ + icr = er32(ICR); + + /* If MWI was previously enabled, reenable it. */ + if (hw->mac_type == e1000_82542_rev2_0) { + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + } + + if (hw->mac_type == e1000_ich8lan) { + u32 kab = er32(KABGTXD); + kab |= E1000_KABGTXD_BGSQLBIAS; + ew32(KABGTXD, kab); + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * + * Initialize a number of hardware-dependent bits + * + * hw: Struct containing variables accessed by shared code + * + * This function contains hardware limitation workarounds for PCI-E adapters + * + *****************************************************************************/ +static void e1000_initialize_hardware_bits(struct e1000_hw *hw) +{ + if ((hw->mac_type >= e1000_82571) && (!hw->initialize_hw_bits_disable)) { + /* Settings common to all PCI-express silicon */ + u32 reg_ctrl, reg_ctrl_ext; + u32 reg_tarc0, reg_tarc1; + u32 reg_tctl; + u32 reg_txdctl, reg_txdctl1; + + /* link autonegotiation/sync workarounds */ + reg_tarc0 = er32(TARC0); + reg_tarc0 &= ~((1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)); + + /* Enable not-done TX descriptor counting */ + reg_txdctl = er32(TXDCTL); + reg_txdctl |= E1000_TXDCTL_COUNT_DESC; + ew32(TXDCTL, reg_txdctl); + reg_txdctl1 = er32(TXDCTL1); + reg_txdctl1 |= E1000_TXDCTL_COUNT_DESC; + ew32(TXDCTL1, reg_txdctl1); + + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + /* Clear PHY TX compatible mode bits */ + reg_tarc1 = er32(TARC1); + reg_tarc1 &= ~((1 << 30)|(1 << 29)); + + /* link autonegotiation/sync workarounds */ + reg_tarc0 |= ((1 << 26)|(1 << 25)|(1 << 24)|(1 << 23)); + + /* TX ring control fixes */ + reg_tarc1 |= ((1 << 26)|(1 << 25)|(1 << 24)); + + /* Multiple read bit is reversed polarity */ + reg_tctl = er32(TCTL); + if (reg_tctl & E1000_TCTL_MULR) + reg_tarc1 &= ~(1 << 28); + else + reg_tarc1 |= (1 << 28); + + ew32(TARC1, reg_tarc1); + break; + case e1000_82573: + reg_ctrl_ext = er32(CTRL_EXT); + reg_ctrl_ext &= ~(1 << 23); + reg_ctrl_ext |= (1 << 22); + + /* TX byte count fix */ + reg_ctrl = er32(CTRL); + reg_ctrl &= ~(1 << 29); + + ew32(CTRL_EXT, reg_ctrl_ext); + ew32(CTRL, reg_ctrl); + break; + case e1000_80003es2lan: + /* improve small packet performace for fiber/serdes */ + if ((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) { + reg_tarc0 &= ~(1 << 20); + } + + /* Multiple read bit is reversed polarity */ + reg_tctl = er32(TCTL); + reg_tarc1 = er32(TARC1); + if (reg_tctl & E1000_TCTL_MULR) + reg_tarc1 &= ~(1 << 28); + else + reg_tarc1 |= (1 << 28); + + ew32(TARC1, reg_tarc1); + break; + case e1000_ich8lan: + /* Reduce concurrent DMA requests to 3 from 4 */ + if ((hw->revision_id < 3) || + ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) && + (hw->device_id != E1000_DEV_ID_ICH8_IGP_M))) + reg_tarc0 |= ((1 << 29)|(1 << 28)); + + reg_ctrl_ext = er32(CTRL_EXT); + reg_ctrl_ext |= (1 << 22); + ew32(CTRL_EXT, reg_ctrl_ext); + + /* workaround TX hang with TSO=on */ + reg_tarc0 |= ((1 << 27)|(1 << 26)|(1 << 24)|(1 << 23)); + + /* Multiple read bit is reversed polarity */ + reg_tctl = er32(TCTL); + reg_tarc1 = er32(TARC1); + if (reg_tctl & E1000_TCTL_MULR) + reg_tarc1 &= ~(1 << 28); + else + reg_tarc1 |= (1 << 28); + + /* workaround TX hang with TSO=on */ + reg_tarc1 |= ((1 << 30)|(1 << 26)|(1 << 24)); + + ew32(TARC1, reg_tarc1); + break; + default: + break; + } + + ew32(TARC0, reg_tarc0); + } +} + +/****************************************************************************** + * Performs basic configuration of the adapter. + * + * hw - Struct containing variables accessed by shared code + * + * Assumes that the controller has previously been reset and is in a + * post-reset uninitialized state. Initializes the receive address registers, + * multicast table, and VLAN filter table. Calls routines to setup link + * configuration and flow control settings. Clears all on-chip counters. Leaves + * the transmit and receive units disabled and uninitialized. + *****************************************************************************/ +s32 e1000_init_hw(struct e1000_hw *hw) +{ + u32 ctrl; + u32 i; + s32 ret_val; + u32 mta_size; + u32 reg_data; + u32 ctrl_ext; + + DEBUGFUNC("e1000_init_hw"); + + /* force full DMA clock frequency for 10/100 on ICH8 A0-B0 */ + if ((hw->mac_type == e1000_ich8lan) && + ((hw->revision_id < 3) || + ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) && + (hw->device_id != E1000_DEV_ID_ICH8_IGP_M)))) { + reg_data = er32(STATUS); + reg_data &= ~0x80000000; + ew32(STATUS, reg_data); + } + + /* Initialize Identification LED */ + ret_val = e1000_id_led_init(hw); + if (ret_val) { + DEBUGOUT("Error Initializing Identification LED\n"); + return ret_val; + } + + /* Set the media type and TBI compatibility */ + e1000_set_media_type(hw); + + /* Must be called after e1000_set_media_type because media_type is used */ + e1000_initialize_hardware_bits(hw); + + /* Disabling VLAN filtering. */ + DEBUGOUT("Initializing the IEEE VLAN\n"); + /* VET hardcoded to standard value and VFTA removed in ICH8 LAN */ + if (hw->mac_type != e1000_ich8lan) { + if (hw->mac_type < e1000_82545_rev_3) + ew32(VET, 0); + e1000_clear_vfta(hw); + } + + /* For 82542 (rev 2.0), disable MWI and put the receiver into reset */ + if (hw->mac_type == e1000_82542_rev2_0) { + DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); + e1000_pci_clear_mwi(hw); + ew32(RCTL, E1000_RCTL_RST); + E1000_WRITE_FLUSH(); + msleep(5); + } + + /* Setup the receive address. This involves initializing all of the Receive + * Address Registers (RARs 0 - 15). + */ + e1000_init_rx_addrs(hw); + + /* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */ + if (hw->mac_type == e1000_82542_rev2_0) { + ew32(RCTL, 0); + E1000_WRITE_FLUSH(); + msleep(1); + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + } + + /* Zero out the Multicast HASH table */ + DEBUGOUT("Zeroing the MTA\n"); + mta_size = E1000_MC_TBL_SIZE; + if (hw->mac_type == e1000_ich8lan) + mta_size = E1000_MC_TBL_SIZE_ICH8LAN; + for (i = 0; i < mta_size; i++) { + E1000_WRITE_REG_ARRAY(hw, MTA, i, 0); + /* use write flush to prevent Memory Write Block (MWB) from + * occuring when accessing our register space */ + E1000_WRITE_FLUSH(); + } + + /* Set the PCI priority bit correctly in the CTRL register. This + * determines if the adapter gives priority to receives, or if it + * gives equal priority to transmits and receives. Valid only on + * 82542 and 82543 silicon. + */ + if (hw->dma_fairness && hw->mac_type <= e1000_82543) { + ctrl = er32(CTRL); + ew32(CTRL, ctrl | E1000_CTRL_PRIOR); + } + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + /* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */ + if (hw->bus_type == e1000_bus_type_pcix && e1000_pcix_get_mmrbc(hw) > 2048) + e1000_pcix_set_mmrbc(hw, 2048); + break; + } + + /* More time needed for PHY to initialize */ + if (hw->mac_type == e1000_ich8lan) + msleep(15); + + /* Call a subroutine to configure the link and setup flow control. */ + ret_val = e1000_setup_link(hw); + + /* Set the transmit descriptor write-back policy */ + if (hw->mac_type > e1000_82544) { + ctrl = er32(TXDCTL); + ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; + ew32(TXDCTL, ctrl); + } + + if (hw->mac_type == e1000_82573) { + e1000_enable_tx_pkt_filtering(hw); + } + + switch (hw->mac_type) { + default: + break; + case e1000_80003es2lan: + /* Enable retransmit on late collisions */ + reg_data = er32(TCTL); + reg_data |= E1000_TCTL_RTLC; + ew32(TCTL, reg_data); + + /* Configure Gigabit Carry Extend Padding */ + reg_data = er32(TCTL_EXT); + reg_data &= ~E1000_TCTL_EXT_GCEX_MASK; + reg_data |= DEFAULT_80003ES2LAN_TCTL_EXT_GCEX; + ew32(TCTL_EXT, reg_data); + + /* Configure Transmit Inter-Packet Gap */ + reg_data = er32(TIPG); + reg_data &= ~E1000_TIPG_IPGT_MASK; + reg_data |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; + ew32(TIPG, reg_data); + + reg_data = E1000_READ_REG_ARRAY(hw, FFLT, 0x0001); + reg_data &= ~0x00100000; + E1000_WRITE_REG_ARRAY(hw, FFLT, 0x0001, reg_data); + /* Fall through */ + case e1000_82571: + case e1000_82572: + case e1000_ich8lan: + ctrl = er32(TXDCTL1); + ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; + ew32(TXDCTL1, ctrl); + break; + } + + + if (hw->mac_type == e1000_82573) { + u32 gcr = er32(GCR); + gcr |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX; + ew32(GCR, gcr); + } + + /* Clear all of the statistics registers (clear on read). It is + * important that we do this after we have tried to establish link + * because the symbol error count will increment wildly if there + * is no link. + */ + e1000_clear_hw_cntrs(hw); + + /* ICH8 No-snoop bits are opposite polarity. + * Set to snoop by default after reset. */ + if (hw->mac_type == e1000_ich8lan) + e1000_set_pci_ex_no_snoop(hw, PCI_EX_82566_SNOOP_ALL); + + if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER || + hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) { + ctrl_ext = er32(CTRL_EXT); + /* Relaxed ordering must be disabled to avoid a parity + * error crash in a PCI slot. */ + ctrl_ext |= E1000_CTRL_EXT_RO_DIS; + ew32(CTRL_EXT, ctrl_ext); + } + + return ret_val; +} + +/****************************************************************************** + * Adjust SERDES output amplitude based on EEPROM setting. + * + * hw - Struct containing variables accessed by shared code. + *****************************************************************************/ +static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw) +{ + u16 eeprom_data; + s32 ret_val; + + DEBUGFUNC("e1000_adjust_serdes_amplitude"); + + if (hw->media_type != e1000_media_type_internal_serdes) + return E1000_SUCCESS; + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + return E1000_SUCCESS; + } + + ret_val = e1000_read_eeprom(hw, EEPROM_SERDES_AMPLITUDE, 1, &eeprom_data); + if (ret_val) { + return ret_val; + } + + if (eeprom_data != EEPROM_RESERVED_WORD) { + /* Adjust SERDES output amplitude only. */ + eeprom_data &= EEPROM_SERDES_AMPLITUDE_MASK; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_EXT_CTRL, eeprom_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Configures flow control and link settings. + * + * hw - Struct containing variables accessed by shared code + * + * Determines which flow control settings to use. Calls the apropriate media- + * specific link configuration function. Configures the flow control settings. + * Assuming the adapter has a valid link partner, a valid link should be + * established. Assumes the hardware has previously been reset and the + * transmitter and receiver are not enabled. + *****************************************************************************/ +s32 e1000_setup_link(struct e1000_hw *hw) +{ + u32 ctrl_ext; + s32 ret_val; + u16 eeprom_data; + + DEBUGFUNC("e1000_setup_link"); + + /* In the case of the phy reset being blocked, we already have a link. + * We do not have to set it up again. */ + if (e1000_check_phy_reset_block(hw)) + return E1000_SUCCESS; + + /* Read and store word 0x0F of the EEPROM. This word contains bits + * that determine the hardware's default PAUSE (flow control) mode, + * a bit that determines whether the HW defaults to enabling or + * disabling auto-negotiation, and the direction of the + * SW defined pins. If there is no SW over-ride of the flow + * control setting, then the variable hw->fc will + * be initialized based on a value in the EEPROM. + */ + if (hw->fc == E1000_FC_DEFAULT) { + switch (hw->mac_type) { + case e1000_ich8lan: + case e1000_82573: + hw->fc = E1000_FC_FULL; + break; + default: + ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, + 1, &eeprom_data); + if (ret_val) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0) + hw->fc = E1000_FC_NONE; + else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == + EEPROM_WORD0F_ASM_DIR) + hw->fc = E1000_FC_TX_PAUSE; + else + hw->fc = E1000_FC_FULL; + break; + } + } + + /* We want to save off the original Flow Control configuration just + * in case we get disconnected and then reconnected into a different + * hub or switch with different Flow Control capabilities. + */ + if (hw->mac_type == e1000_82542_rev2_0) + hw->fc &= (~E1000_FC_TX_PAUSE); + + if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1)) + hw->fc &= (~E1000_FC_RX_PAUSE); + + hw->original_fc = hw->fc; + + DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc); + + /* Take the 4 bits from EEPROM word 0x0F that determine the initial + * polarity value for the SW controlled pins, and setup the + * Extended Device Control reg with that info. + * This is needed because one of the SW controlled pins is used for + * signal detection. So this should be done before e1000_setup_pcs_link() + * or e1000_phy_setup() is called. + */ + if (hw->mac_type == e1000_82543) { + ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, + 1, &eeprom_data); + if (ret_val) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) << + SWDPIO__EXT_SHIFT); + ew32(CTRL_EXT, ctrl_ext); + } + + /* Call the necessary subroutine to configure the link. */ + ret_val = (hw->media_type == e1000_media_type_copper) ? + e1000_setup_copper_link(hw) : + e1000_setup_fiber_serdes_link(hw); + + /* Initialize the flow control address, type, and PAUSE timer + * registers to their default values. This is done even if flow + * control is disabled, because it does not hurt anything to + * initialize these registers. + */ + DEBUGOUT("Initializing the Flow Control address, type and timer regs\n"); + + /* FCAL/H and FCT are hardcoded to standard values in e1000_ich8lan. */ + if (hw->mac_type != e1000_ich8lan) { + ew32(FCT, FLOW_CONTROL_TYPE); + ew32(FCAH, FLOW_CONTROL_ADDRESS_HIGH); + ew32(FCAL, FLOW_CONTROL_ADDRESS_LOW); + } + + ew32(FCTTV, hw->fc_pause_time); + + /* Set the flow control receive threshold registers. Normally, + * these registers will be set to a default threshold that may be + * adjusted later by the driver's runtime code. However, if the + * ability to transmit pause frames in not enabled, then these + * registers will be set to 0. + */ + if (!(hw->fc & E1000_FC_TX_PAUSE)) { + ew32(FCRTL, 0); + ew32(FCRTH, 0); + } else { + /* We need to set up the Receive Threshold high and low water marks + * as well as (optionally) enabling the transmission of XON frames. + */ + if (hw->fc_send_xon) { + ew32(FCRTL, (hw->fc_low_water | E1000_FCRTL_XONE)); + ew32(FCRTH, hw->fc_high_water); + } else { + ew32(FCRTL, hw->fc_low_water); + ew32(FCRTH, hw->fc_high_water); + } + } + return ret_val; +} + +/****************************************************************************** + * Sets up link for a fiber based or serdes based adapter + * + * hw - Struct containing variables accessed by shared code + * + * Manipulates Physical Coding Sublayer functions in order to configure + * link. Assumes the hardware has been previously reset and the transmitter + * and receiver are not enabled. + *****************************************************************************/ +static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw) +{ + u32 ctrl; + u32 status; + u32 txcw = 0; + u32 i; + u32 signal = 0; + s32 ret_val; + + DEBUGFUNC("e1000_setup_fiber_serdes_link"); + + /* On 82571 and 82572 Fiber connections, SerDes loopback mode persists + * until explicitly turned off or a power cycle is performed. A read to + * the register does not indicate its status. Therefore, we ensure + * loopback mode is disabled during initialization. + */ + if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) + ew32(SCTL, E1000_DISABLE_SERDES_LOOPBACK); + + /* On adapters with a MAC newer than 82544, SWDP 1 will be + * set when the optics detect a signal. On older adapters, it will be + * cleared when there is a signal. This applies to fiber media only. + * If we're on serdes media, adjust the output amplitude to value + * set in the EEPROM. + */ + ctrl = er32(CTRL); + if (hw->media_type == e1000_media_type_fiber) + signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; + + ret_val = e1000_adjust_serdes_amplitude(hw); + if (ret_val) + return ret_val; + + /* Take the link out of reset */ + ctrl &= ~(E1000_CTRL_LRST); + + /* Adjust VCO speed to improve BER performance */ + ret_val = e1000_set_vco_speed(hw); + if (ret_val) + return ret_val; + + e1000_config_collision_dist(hw); + + /* Check for a software override of the flow control settings, and setup + * the device accordingly. If auto-negotiation is enabled, then software + * will have to set the "PAUSE" bits to the correct value in the Tranmsit + * Config Word Register (TXCW) and re-start auto-negotiation. However, if + * auto-negotiation is disabled, then software will have to manually + * configure the two flow control enable bits in the CTRL register. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames, but + * not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames but we do + * not support receiving pause frames). + * 3: Both Rx and TX flow control (symmetric) are enabled. + */ + switch (hw->fc) { + case E1000_FC_NONE: + /* Flow control is completely disabled by a software over-ride. */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); + break; + case E1000_FC_RX_PAUSE: + /* RX Flow control is enabled and TX Flow control is disabled by a + * software over-ride. Since there really isn't a way to advertise + * that we are capable of RX Pause ONLY, we will advertise that we + * support both symmetric and asymmetric RX PAUSE. Later, we will + * disable the adapter's ability to send PAUSE frames. + */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); + break; + case E1000_FC_TX_PAUSE: + /* TX Flow control is enabled, and RX Flow control is disabled, by a + * software over-ride. + */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR); + break; + case E1000_FC_FULL: + /* Flow control (both RX and TX) is enabled by a software over-ride. */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + break; + } + + /* Since auto-negotiation is enabled, take the link out of reset (the link + * will be in reset, because we previously reset the chip). This will + * restart auto-negotiation. If auto-neogtiation is successful then the + * link-up status bit will be set and the flow control enable bits (RFCE + * and TFCE) will be set according to their negotiated value. + */ + DEBUGOUT("Auto-negotiation enabled\n"); + + ew32(TXCW, txcw); + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + hw->txcw = txcw; + msleep(1); + + /* If we have a signal (the cable is plugged in) then poll for a "Link-Up" + * indication in the Device Status Register. Time-out if a link isn't + * seen in 500 milliseconds seconds (Auto-negotiation should complete in + * less than 500 milliseconds even if the other end is doing it in SW). + * For internal serdes, we just assume a signal is present, then poll. + */ + if (hw->media_type == e1000_media_type_internal_serdes || + (er32(CTRL) & E1000_CTRL_SWDPIN1) == signal) { + DEBUGOUT("Looking for Link\n"); + for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) { + msleep(10); + status = er32(STATUS); + if (status & E1000_STATUS_LU) break; + } + if (i == (LINK_UP_TIMEOUT / 10)) { + DEBUGOUT("Never got a valid link from auto-neg!!!\n"); + hw->autoneg_failed = 1; + /* AutoNeg failed to achieve a link, so we'll call + * e1000_check_for_link. This routine will force the link up if + * we detect a signal. This will allow us to communicate with + * non-autonegotiating link partners. + */ + ret_val = e1000_check_for_link(hw); + if (ret_val) { + DEBUGOUT("Error while checking for link\n"); + return ret_val; + } + hw->autoneg_failed = 0; + } else { + hw->autoneg_failed = 0; + DEBUGOUT("Valid Link Found\n"); + } + } else { + DEBUGOUT("No Signal Detected\n"); + } + return E1000_SUCCESS; +} + +/****************************************************************************** +* Make sure we have a valid PHY and change PHY mode before link setup. +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_copper_link_preconfig(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_preconfig"); + + ctrl = er32(CTRL); + /* With 82543, we need to force speed and duplex on the MAC equal to what + * the PHY speed and duplex configuration is. In addition, we need to + * perform a hardware reset on the PHY to take it out of reset. + */ + if (hw->mac_type > e1000_82543) { + ctrl |= E1000_CTRL_SLU; + ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ew32(CTRL, ctrl); + } else { + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU); + ew32(CTRL, ctrl); + ret_val = e1000_phy_hw_reset(hw); + if (ret_val) + return ret_val; + } + + /* Make sure we have a valid PHY */ + ret_val = e1000_detect_gig_phy(hw); + if (ret_val) { + DEBUGOUT("Error, did not detect valid phy.\n"); + return ret_val; + } + DEBUGOUT1("Phy ID = %x \n", hw->phy_id); + + /* Set PHY to class A mode (if necessary) */ + ret_val = e1000_set_phy_mode(hw); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82545_rev_3) || + (hw->mac_type == e1000_82546_rev_3)) { + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + phy_data |= 0x00000008; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + } + + if (hw->mac_type <= e1000_82543 || + hw->mac_type == e1000_82541 || hw->mac_type == e1000_82547 || + hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) + hw->phy_reset_disable = false; + + return E1000_SUCCESS; +} + + +/******************************************************************** +* Copper link setup for e1000_phy_igp series. +* +* hw - Struct containing variables accessed by shared code +*********************************************************************/ +static s32 e1000_copper_link_igp_setup(struct e1000_hw *hw) +{ + u32 led_ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_igp_setup"); + + if (hw->phy_reset_disable) + return E1000_SUCCESS; + + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + + /* Wait 15ms for MAC to configure PHY from eeprom settings */ + msleep(15); + if (hw->mac_type != e1000_ich8lan) { + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* The NVM settings will configure LPLU in D3 for IGP2 and IGP3 PHYs */ + if (hw->phy_type == e1000_phy_igp) { + /* disable lplu d3 during driver init */ + ret_val = e1000_set_d3_lplu_state(hw, false); + if (ret_val) { + DEBUGOUT("Error Disabling LPLU D3\n"); + return ret_val; + } + } + + /* disable lplu d0 during driver init */ + ret_val = e1000_set_d0_lplu_state(hw, false); + if (ret_val) { + DEBUGOUT("Error Disabling LPLU D0\n"); + return ret_val; + } + /* Configure mdi-mdix settings */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + hw->dsp_config_state = e1000_dsp_config_disabled; + /* Force MDI for earlier revs of the IGP PHY */ + phy_data &= ~(IGP01E1000_PSCR_AUTO_MDIX | IGP01E1000_PSCR_FORCE_MDI_MDIX); + hw->mdix = 1; + + } else { + hw->dsp_config_state = e1000_dsp_config_enabled; + phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; + + switch (hw->mdix) { + case 1: + phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; + break; + case 2: + phy_data |= IGP01E1000_PSCR_FORCE_MDI_MDIX; + break; + case 0: + default: + phy_data |= IGP01E1000_PSCR_AUTO_MDIX; + break; + } + } + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* set auto-master slave resolution settings */ + if (hw->autoneg) { + e1000_ms_type phy_ms_setting = hw->master_slave; + + if (hw->ffe_config_state == e1000_ffe_config_active) + hw->ffe_config_state = e1000_ffe_config_enabled; + + if (hw->dsp_config_state == e1000_dsp_config_activated) + hw->dsp_config_state = e1000_dsp_config_enabled; + + /* when autonegotiation advertisment is only 1000Mbps then we + * should disable SmartSpeed and enable Auto MasterSlave + * resolution as hardware default. */ + if (hw->autoneg_advertised == ADVERTISE_1000_FULL) { + /* Disable SmartSpeed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + /* Set auto Master/Slave resolution process */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); + if (ret_val) + return ret_val; + phy_data &= ~CR_1000T_MS_ENABLE; + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); + if (ret_val) + return ret_val; + + /* load defaults for future use */ + hw->original_master_slave = (phy_data & CR_1000T_MS_ENABLE) ? + ((phy_data & CR_1000T_MS_VALUE) ? + e1000_ms_force_master : + e1000_ms_force_slave) : + e1000_ms_auto; + + switch (phy_ms_setting) { + case e1000_ms_force_master: + phy_data |= (CR_1000T_MS_ENABLE | CR_1000T_MS_VALUE); + break; + case e1000_ms_force_slave: + phy_data |= CR_1000T_MS_ENABLE; + phy_data &= ~(CR_1000T_MS_VALUE); + break; + case e1000_ms_auto: + phy_data &= ~CR_1000T_MS_ENABLE; + default: + break; + } + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/******************************************************************** +* Copper link setup for e1000_phy_gg82563 series. +* +* hw - Struct containing variables accessed by shared code +*********************************************************************/ +static s32 e1000_copper_link_ggp_setup(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + u32 reg_data; + + DEBUGFUNC("e1000_copper_link_ggp_setup"); + + if (!hw->phy_reset_disable) { + + /* Enable CRS on TX for half-duplex operation. */ + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; + /* Use 25MHz for both link down and 1000BASE-T for Tx clock */ + phy_data |= GG82563_MSCR_TX_CLK_1000MBPS_25MHZ; + + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, + phy_data); + if (ret_val) + return ret_val; + + /* Options: + * MDI/MDI-X = 0 (default) + * 0 - Auto for all speeds + * 1 - MDI mode + * 2 - MDI-X mode + * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) + */ + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK; + + switch (hw->mdix) { + case 1: + phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDI; + break; + case 2: + phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDIX; + break; + case 0: + default: + phy_data |= GG82563_PSCR_CROSSOVER_MODE_AUTO; + break; + } + + /* Options: + * disable_polarity_correction = 0 (default) + * Automatic Correction for Reversed Cable Polarity + * 0 - Disabled + * 1 - Enabled + */ + phy_data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE; + if (hw->disable_polarity_correction == 1) + phy_data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL, phy_data); + + if (ret_val) + return ret_val; + + /* SW Reset the PHY so all changes take effect */ + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + } /* phy_reset_disable */ + + if (hw->mac_type == e1000_80003es2lan) { + /* Bypass RX and TX FIFO's */ + ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL, + E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS | + E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, phy_data); + + if (ret_val) + return ret_val; + + reg_data = er32(CTRL_EXT); + reg_data &= ~(E1000_CTRL_EXT_LINK_MODE_MASK); + ew32(CTRL_EXT, reg_data); + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + /* Do not init these registers when the HW is in IAMT mode, since the + * firmware will have already initialized them. We only initialize + * them if the HW is not in IAMT mode. + */ + if (!e1000_check_mng_mode(hw)) { + /* Enable Electrical Idle on the PHY */ + phy_data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, + phy_data); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, + phy_data); + + if (ret_val) + return ret_val; + } + + /* Workaround: Disable padding in Kumeran interface in the MAC + * and in the PHY to avoid CRC errors. + */ + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_INBAND_CTRL, + &phy_data); + if (ret_val) + return ret_val; + phy_data |= GG82563_ICR_DIS_PADDING; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_INBAND_CTRL, + phy_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/******************************************************************** +* Copper link setup for e1000_phy_m88 series. +* +* hw - Struct containing variables accessed by shared code +*********************************************************************/ +static s32 e1000_copper_link_mgp_setup(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_mgp_setup"); + + if (hw->phy_reset_disable) + return E1000_SUCCESS; + + /* Enable CRS on TX. This must be set for half-duplex operation. */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + + /* Options: + * MDI/MDI-X = 0 (default) + * 0 - Auto for all speeds + * 1 - MDI mode + * 2 - MDI-X mode + * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) + */ + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + + switch (hw->mdix) { + case 1: + phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE; + break; + case 2: + phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE; + break; + case 3: + phy_data |= M88E1000_PSCR_AUTO_X_1000T; + break; + case 0: + default: + phy_data |= M88E1000_PSCR_AUTO_X_MODE; + break; + } + + /* Options: + * disable_polarity_correction = 0 (default) + * Automatic Correction for Reversed Cable Polarity + * 0 - Disabled + * 1 - Enabled + */ + phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL; + if (hw->disable_polarity_correction == 1) + phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + if (hw->phy_revision < M88E1011_I_REV_4) { + /* Force TX_CLK in the Extended PHY Specific Control Register + * to 25MHz clock. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_EPSCR_TX_CLK_25; + + if ((hw->phy_revision == E1000_REVISION_2) && + (hw->phy_id == M88E1111_I_PHY_ID)) { + /* Vidalia Phy, set the downshift counter to 5x */ + phy_data &= ~(M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK); + phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X; + ret_val = e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + } else { + /* Configure Master and Slave downshift values */ + phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK | + M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK); + phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X | + M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X); + ret_val = e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + } + } + + /* SW Reset the PHY so all changes take effect */ + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + + return E1000_SUCCESS; +} + +/******************************************************************** +* Setup auto-negotiation and flow control advertisements, +* and then perform auto-negotiation. +* +* hw - Struct containing variables accessed by shared code +*********************************************************************/ +static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_autoneg"); + + /* Perform some bounds checking on the hw->autoneg_advertised + * parameter. If this variable is zero, then set it to the default. + */ + hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT; + + /* If autoneg_advertised is zero, we assume it was not defaulted + * by the calling code so we set to advertise full capability. + */ + if (hw->autoneg_advertised == 0) + hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT; + + /* IFE phy only supports 10/100 */ + if (hw->phy_type == e1000_phy_ife) + hw->autoneg_advertised &= AUTONEG_ADVERTISE_10_100_ALL; + + DEBUGOUT("Reconfiguring auto-neg advertisement params\n"); + ret_val = e1000_phy_setup_autoneg(hw); + if (ret_val) { + DEBUGOUT("Error Setting up Auto-Negotiation\n"); + return ret_val; + } + DEBUGOUT("Restarting Auto-Neg\n"); + + /* Restart auto-negotiation by setting the Auto Neg Enable bit and + * the Auto Neg Restart bit in the PHY control register. + */ + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG); + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* Does the user want to wait for Auto-Neg to complete here, or + * check at a later time (for example, callback routine). + */ + if (hw->wait_autoneg_complete) { + ret_val = e1000_wait_autoneg(hw); + if (ret_val) { + DEBUGOUT("Error while waiting for autoneg to complete\n"); + return ret_val; + } + } + + hw->get_link_status = true; + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Config the MAC and the PHY after link is up. +* 1) Set up the MAC to the current PHY speed/duplex +* if we are on 82543. If we +* are on newer silicon, we only need to configure +* collision distance in the Transmit Control Register. +* 2) Set up flow control on the MAC to that established with +* the link partner. +* 3) Config DSP to improve Gigabit link quality for some PHY revisions. +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_copper_link_postconfig(struct e1000_hw *hw) +{ + s32 ret_val; + DEBUGFUNC("e1000_copper_link_postconfig"); + + if (hw->mac_type >= e1000_82544) { + e1000_config_collision_dist(hw); + } else { + ret_val = e1000_config_mac_to_phy(hw); + if (ret_val) { + DEBUGOUT("Error configuring MAC to PHY settings\n"); + return ret_val; + } + } + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error Configuring Flow Control\n"); + return ret_val; + } + + /* Config DSP to improve Giga link quality */ + if (hw->phy_type == e1000_phy_igp) { + ret_val = e1000_config_dsp_after_link_change(hw, true); + if (ret_val) { + DEBUGOUT("Error Configuring DSP after link up\n"); + return ret_val; + } + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Detects which PHY is present and setup the speed and duplex +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_setup_copper_link(struct e1000_hw *hw) +{ + s32 ret_val; + u16 i; + u16 phy_data; + u16 reg_data; + + DEBUGFUNC("e1000_setup_copper_link"); + + switch (hw->mac_type) { + case e1000_80003es2lan: + case e1000_ich8lan: + /* Set the mac to wait the maximum time between each + * iteration and increase the max iterations when + * polling the phy; this fixes erroneous timeouts at 10Mbps. */ + ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); + if (ret_val) + return ret_val; + ret_val = e1000_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data); + if (ret_val) + return ret_val; + reg_data |= 0x3F; + ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data); + if (ret_val) + return ret_val; + default: + break; + } + + /* Check if it is a valid PHY and set PHY mode if necessary. */ + ret_val = e1000_copper_link_preconfig(hw); + if (ret_val) + return ret_val; + + switch (hw->mac_type) { + case e1000_80003es2lan: + /* Kumeran registers are written-only */ + reg_data = E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT; + reg_data |= E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING; + ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_INB_CTRL, + reg_data); + if (ret_val) + return ret_val; + break; + default: + break; + } + + if (hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) { + ret_val = e1000_copper_link_igp_setup(hw); + if (ret_val) + return ret_val; + } else if (hw->phy_type == e1000_phy_m88) { + ret_val = e1000_copper_link_mgp_setup(hw); + if (ret_val) + return ret_val; + } else if (hw->phy_type == e1000_phy_gg82563) { + ret_val = e1000_copper_link_ggp_setup(hw); + if (ret_val) + return ret_val; + } + + if (hw->autoneg) { + /* Setup autoneg and flow control advertisement + * and perform autonegotiation */ + ret_val = e1000_copper_link_autoneg(hw); + if (ret_val) + return ret_val; + } else { + /* PHY will be set to 10H, 10F, 100H,or 100F + * depending on value from forced_speed_duplex. */ + DEBUGOUT("Forcing speed and duplex\n"); + ret_val = e1000_phy_force_speed_duplex(hw); + if (ret_val) { + DEBUGOUT("Error Forcing Speed and Duplex\n"); + return ret_val; + } + } + + /* Check link status. Wait up to 100 microseconds for link to become + * valid. + */ + for (i = 0; i < 10; i++) { + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & MII_SR_LINK_STATUS) { + /* Config the MAC and PHY after link is up */ + ret_val = e1000_copper_link_postconfig(hw); + if (ret_val) + return ret_val; + + DEBUGOUT("Valid link established!!!\n"); + return E1000_SUCCESS; + } + udelay(10); + } + + DEBUGOUT("Unable to establish link!!!\n"); + return E1000_SUCCESS; +} + +/****************************************************************************** +* Configure the MAC-to-PHY interface for 10/100Mbps +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, u16 duplex) +{ + s32 ret_val = E1000_SUCCESS; + u32 tipg; + u16 reg_data; + + DEBUGFUNC("e1000_configure_kmrn_for_10_100"); + + reg_data = E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT; + ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, + reg_data); + if (ret_val) + return ret_val; + + /* Configure Transmit Inter-Packet Gap */ + tipg = er32(TIPG); + tipg &= ~E1000_TIPG_IPGT_MASK; + tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_10_100; + ew32(TIPG, tipg); + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); + + if (ret_val) + return ret_val; + + if (duplex == HALF_DUPLEX) + reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER; + else + reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; + + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); + + return ret_val; +} + +static s32 e1000_configure_kmrn_for_1000(struct e1000_hw *hw) +{ + s32 ret_val = E1000_SUCCESS; + u16 reg_data; + u32 tipg; + + DEBUGFUNC("e1000_configure_kmrn_for_1000"); + + reg_data = E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT; + ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, + reg_data); + if (ret_val) + return ret_val; + + /* Configure Transmit Inter-Packet Gap */ + tipg = er32(TIPG); + tipg &= ~E1000_TIPG_IPGT_MASK; + tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; + ew32(TIPG, tipg); + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); + + if (ret_val) + return ret_val; + + reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); + + return ret_val; +} + +/****************************************************************************** +* Configures PHY autoneg and flow control advertisement settings +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_autoneg_adv_reg; + u16 mii_1000t_ctrl_reg; + + DEBUGFUNC("e1000_phy_setup_autoneg"); + + /* Read the MII Auto-Neg Advertisement Register (Address 4). */ + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg); + if (ret_val) + return ret_val; + + if (hw->phy_type != e1000_phy_ife) { + /* Read the MII 1000Base-T Control Register (Address 9). */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; + } else + mii_1000t_ctrl_reg=0; + + /* Need to parse both autoneg_advertised and fc and set up + * the appropriate PHY registers. First we will parse for + * autoneg_advertised software override. Since we can advertise + * a plethora of combinations, we need to check each bit + * individually. + */ + + /* First we clear all the 10/100 mb speed bits in the Auto-Neg + * Advertisement Register (Address 4) and the 1000 mb speed bits in + * the 1000Base-T Control Register (Address 9). + */ + mii_autoneg_adv_reg &= ~REG4_SPEED_MASK; + mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK; + + DEBUGOUT1("autoneg_advertised %x\n", hw->autoneg_advertised); + + /* Do we want to advertise 10 Mb Half Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_10_HALF) { + DEBUGOUT("Advertise 10mb Half duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS; + } + + /* Do we want to advertise 10 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_10_FULL) { + DEBUGOUT("Advertise 10mb Full duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS; + } + + /* Do we want to advertise 100 Mb Half Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_100_HALF) { + DEBUGOUT("Advertise 100mb Half duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS; + } + + /* Do we want to advertise 100 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_100_FULL) { + DEBUGOUT("Advertise 100mb Full duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS; + } + + /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ + if (hw->autoneg_advertised & ADVERTISE_1000_HALF) { + DEBUGOUT("Advertise 1000mb Half duplex requested, request denied!\n"); + } + + /* Do we want to advertise 1000 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_1000_FULL) { + DEBUGOUT("Advertise 1000mb Full duplex\n"); + mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS; + if (hw->phy_type == e1000_phy_ife) { + DEBUGOUT("e1000_phy_ife is a 10/100 PHY. Gigabit speed is not supported.\n"); + } + } + + /* Check for a software override of the flow control settings, and + * setup the PHY advertisement registers accordingly. If + * auto-negotiation is enabled, then software will have to set the + * "PAUSE" bits to the correct value in the Auto-Negotiation + * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames + * but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames + * but we do not support receiving pause frames). + * 3: Both Rx and TX flow control (symmetric) are enabled. + * other: No software override. The flow control configuration + * in the EEPROM is used. + */ + switch (hw->fc) { + case E1000_FC_NONE: /* 0 */ + /* Flow control (RX & TX) is completely disabled by a + * software over-ride. + */ + mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + case E1000_FC_RX_PAUSE: /* 1 */ + /* RX Flow control is enabled, and TX Flow control is + * disabled, by a software over-ride. + */ + /* Since there really isn't a way to advertise that we are + * capable of RX Pause ONLY, we will advertise that we + * support both symmetric and asymmetric RX PAUSE. Later + * (in e1000_config_fc_after_link_up) we will disable the + *hw's ability to send PAUSE frames. + */ + mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + case E1000_FC_TX_PAUSE: /* 2 */ + /* TX Flow control is enabled, and RX Flow control is + * disabled, by a software over-ride. + */ + mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR; + mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE; + break; + case E1000_FC_FULL: /* 3 */ + /* Flow control (both RX and TX) is enabled by a software + * over-ride. + */ + mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + } + + ret_val = e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg); + if (ret_val) + return ret_val; + + DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg); + + if (hw->phy_type != e1000_phy_ife) { + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Force PHY speed and duplex settings to hw->forced_speed_duplex +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 mii_ctrl_reg; + u16 mii_status_reg; + u16 phy_data; + u16 i; + + DEBUGFUNC("e1000_phy_force_speed_duplex"); + + /* Turn off Flow control if we are forcing speed and duplex. */ + hw->fc = E1000_FC_NONE; + + DEBUGOUT1("hw->fc = %d\n", hw->fc); + + /* Read the Device Control Register. */ + ctrl = er32(CTRL); + + /* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */ + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ctrl &= ~(DEVICE_SPEED_MASK); + + /* Clear the Auto Speed Detect Enable bit. */ + ctrl &= ~E1000_CTRL_ASDE; + + /* Read the MII Control Register. */ + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &mii_ctrl_reg); + if (ret_val) + return ret_val; + + /* We need to disable autoneg in order to force link and duplex. */ + + mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN; + + /* Are we forcing Full or Half Duplex? */ + if (hw->forced_speed_duplex == e1000_100_full || + hw->forced_speed_duplex == e1000_10_full) { + /* We want to force full duplex so we SET the full duplex bits in the + * Device and MII Control Registers. + */ + ctrl |= E1000_CTRL_FD; + mii_ctrl_reg |= MII_CR_FULL_DUPLEX; + DEBUGOUT("Full Duplex\n"); + } else { + /* We want to force half duplex so we CLEAR the full duplex bits in + * the Device and MII Control Registers. + */ + ctrl &= ~E1000_CTRL_FD; + mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX; + DEBUGOUT("Half Duplex\n"); + } + + /* Are we forcing 100Mbps??? */ + if (hw->forced_speed_duplex == e1000_100_full || + hw->forced_speed_duplex == e1000_100_half) { + /* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */ + ctrl |= E1000_CTRL_SPD_100; + mii_ctrl_reg |= MII_CR_SPEED_100; + mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10); + DEBUGOUT("Forcing 100mb "); + } else { + /* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */ + ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); + mii_ctrl_reg |= MII_CR_SPEED_10; + mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100); + DEBUGOUT("Forcing 10mb "); + } + + e1000_config_collision_dist(hw); + + /* Write the configured values back to the Device Control Reg. */ + ew32(CTRL, ctrl); + + if ((hw->phy_type == e1000_phy_m88) || + (hw->phy_type == e1000_phy_gg82563)) { + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI + * forced whenever speed are duplex are forced. + */ + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data); + + /* Need to reset the PHY or these changes will be ignored */ + mii_ctrl_reg |= MII_CR_RESET; + + /* Disable MDI-X support for 10/100 */ + } else if (hw->phy_type == e1000_phy_ife) { + ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IFE_PMC_AUTO_MDIX; + phy_data &= ~IFE_PMC_FORCE_MDIX; + + ret_val = e1000_write_phy_reg(hw, IFE_PHY_MDIX_CONTROL, phy_data); + if (ret_val) + return ret_val; + + } else { + /* Clear Auto-Crossover to force MDI manually. IGP requires MDI + * forced whenever speed or duplex are forced. + */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; + phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; + + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + /* Write back the modified PHY MII control register. */ + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, mii_ctrl_reg); + if (ret_val) + return ret_val; + + udelay(1); + + /* The wait_autoneg_complete flag may be a little misleading here. + * Since we are forcing speed and duplex, Auto-Neg is not enabled. + * But we do want to delay for a period while forcing only so we + * don't generate false No Link messages. So we will wait here + * only if the user has set wait_autoneg_complete to 1, which is + * the default. + */ + if (hw->wait_autoneg_complete) { + /* We will wait for autoneg to complete. */ + DEBUGOUT("Waiting for forced speed/duplex link.\n"); + mii_status_reg = 0; + + /* We will wait for autoneg to complete or 4.5 seconds to expire. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Auto-Neg Complete bit + * to be set. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_LINK_STATUS) break; + msleep(100); + } + if ((i == 0) && + ((hw->phy_type == e1000_phy_m88) || + (hw->phy_type == e1000_phy_gg82563))) { + /* We didn't get link. Reset the DSP and wait again for link. */ + ret_val = e1000_phy_reset_dsp(hw); + if (ret_val) { + DEBUGOUT("Error Resetting PHY DSP\n"); + return ret_val; + } + } + /* This loop will early-out if the link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + if (mii_status_reg & MII_SR_LINK_STATUS) break; + msleep(100); + /* Read the MII Status Register and wait for Auto-Neg Complete bit + * to be set. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + } + } + + if (hw->phy_type == e1000_phy_m88) { + /* Because we reset the PHY above, we need to re-force TX_CLK in the + * Extended PHY Specific Control Register to 25MHz clock. This value + * defaults back to a 2.5MHz clock when the PHY is reset. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_EPSCR_TX_CLK_25; + ret_val = e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* In addition, because of the s/w reset above, we need to enable CRS on + * TX. This must be set for both full and half duplex operation. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && + (!hw->autoneg) && (hw->forced_speed_duplex == e1000_10_full || + hw->forced_speed_duplex == e1000_10_half)) { + ret_val = e1000_polarity_reversal_workaround(hw); + if (ret_val) + return ret_val; + } + } else if (hw->phy_type == e1000_phy_gg82563) { + /* The TX_CLK of the Extended PHY Specific Control Register defaults + * to 2.5MHz on a reset. We need to re-force it back to 25MHz, if + * we're not in a forced 10/duplex configuration. */ + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~GG82563_MSCR_TX_CLK_MASK; + if ((hw->forced_speed_duplex == e1000_10_full) || + (hw->forced_speed_duplex == e1000_10_half)) + phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ; + else + phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25MHZ; + + /* Also due to the reset, we need to enable CRS on Tx. */ + phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; + + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + } + return E1000_SUCCESS; +} + +/****************************************************************************** +* Sets the collision distance in the Transmit Control register +* +* hw - Struct containing variables accessed by shared code +* +* Link should have been established previously. Reads the speed and duplex +* information from the Device Status register. +******************************************************************************/ +void e1000_config_collision_dist(struct e1000_hw *hw) +{ + u32 tctl, coll_dist; + + DEBUGFUNC("e1000_config_collision_dist"); + + if (hw->mac_type < e1000_82543) + coll_dist = E1000_COLLISION_DISTANCE_82542; + else + coll_dist = E1000_COLLISION_DISTANCE; + + tctl = er32(TCTL); + + tctl &= ~E1000_TCTL_COLD; + tctl |= coll_dist << E1000_COLD_SHIFT; + + ew32(TCTL, tctl); + E1000_WRITE_FLUSH(); +} + +/****************************************************************************** +* Sets MAC speed and duplex settings to reflect the those in the PHY +* +* hw - Struct containing variables accessed by shared code +* mii_reg - data to write to the MII control register +* +* The contents of the PHY register containing the needed information need to +* be passed in. +******************************************************************************/ +static s32 e1000_config_mac_to_phy(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_config_mac_to_phy"); + + /* 82544 or newer MAC, Auto Speed Detection takes care of + * MAC speed/duplex configuration.*/ + if (hw->mac_type >= e1000_82544) + return E1000_SUCCESS; + + /* Read the Device Control Register and set the bits to Force Speed + * and Duplex. + */ + ctrl = er32(CTRL); + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS); + + /* Set up duplex in the Device Control and Transmit Control + * registers depending on negotiated values. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & M88E1000_PSSR_DPLX) + ctrl |= E1000_CTRL_FD; + else + ctrl &= ~E1000_CTRL_FD; + + e1000_config_collision_dist(hw); + + /* Set up speed in the Device Control register depending on + * negotiated values. + */ + if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) + ctrl |= E1000_CTRL_SPD_1000; + else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS) + ctrl |= E1000_CTRL_SPD_100; + + /* Write the configured values back to the Device Control Reg. */ + ew32(CTRL, ctrl); + return E1000_SUCCESS; +} + +/****************************************************************************** + * Forces the MAC's flow control settings. + * + * hw - Struct containing variables accessed by shared code + * + * Sets the TFCE and RFCE bits in the device control register to reflect + * the adapter settings. TFCE and RFCE need to be explicitly set by + * software when a Copper PHY is used because autonegotiation is managed + * by the PHY rather than the MAC. Software must also configure these + * bits when link is forced on a fiber connection. + *****************************************************************************/ +s32 e1000_force_mac_fc(struct e1000_hw *hw) +{ + u32 ctrl; + + DEBUGFUNC("e1000_force_mac_fc"); + + /* Get the current configuration of the Device Control Register */ + ctrl = er32(CTRL); + + /* Because we didn't get link via the internal auto-negotiation + * mechanism (we either forced link or we got link via PHY + * auto-neg), we have to manually enable/disable transmit an + * receive flow control. + * + * The "Case" statement below enables/disable flow control + * according to the "hw->fc" parameter. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause + * frames but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames + * frames but we do not receive pause frames). + * 3: Both Rx and TX flow control (symmetric) is enabled. + * other: No other values should be possible at this point. + */ + + switch (hw->fc) { + case E1000_FC_NONE: + ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE)); + break; + case E1000_FC_RX_PAUSE: + ctrl &= (~E1000_CTRL_TFCE); + ctrl |= E1000_CTRL_RFCE; + break; + case E1000_FC_TX_PAUSE: + ctrl &= (~E1000_CTRL_RFCE); + ctrl |= E1000_CTRL_TFCE; + break; + case E1000_FC_FULL: + ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + } + + /* Disable TX Flow Control for 82542 (rev 2.0) */ + if (hw->mac_type == e1000_82542_rev2_0) + ctrl &= (~E1000_CTRL_TFCE); + + ew32(CTRL, ctrl); + return E1000_SUCCESS; +} + +/****************************************************************************** + * Configures flow control settings after link is established + * + * hw - Struct containing variables accessed by shared code + * + * Should be called immediately after a valid link has been established. + * Forces MAC flow control settings if link was forced. When in MII/GMII mode + * and autonegotiation is enabled, the MAC flow control settings will be set + * based on the flow control negotiated by the PHY. In TBI mode, the TFCE + * and RFCE bits will be automaticaly set to the negotiated flow control mode. + *****************************************************************************/ +static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_status_reg; + u16 mii_nway_adv_reg; + u16 mii_nway_lp_ability_reg; + u16 speed; + u16 duplex; + + DEBUGFUNC("e1000_config_fc_after_link_up"); + + /* Check for the case where we have fiber media and auto-neg failed + * so we had to force link. In this case, we need to force the + * configuration of the MAC to match the "fc" parameter. + */ + if (((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) || + ((hw->media_type == e1000_media_type_internal_serdes) && + (hw->autoneg_failed)) || + ((hw->media_type == e1000_media_type_copper) && (!hw->autoneg))) { + ret_val = e1000_force_mac_fc(hw); + if (ret_val) { + DEBUGOUT("Error forcing flow control settings\n"); + return ret_val; + } + } + + /* Check for the case where we have copper media and auto-neg is + * enabled. In this case, we need to check and see if Auto-Neg + * has completed, and if so, how the PHY and link partner has + * flow control configured. + */ + if ((hw->media_type == e1000_media_type_copper) && hw->autoneg) { + /* Read the MII Status Register and check to see if AutoNeg + * has completed. We read this twice because this reg has + * some "sticky" (latched) bits. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) { + /* The AutoNeg process has completed, so we now need to + * read both the Auto Negotiation Advertisement Register + * (Address 4) and the Auto_Negotiation Base Page Ability + * Register (Address 5) to determine how flow control was + * negotiated. + */ + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, + &mii_nway_adv_reg); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, + &mii_nway_lp_ability_reg); + if (ret_val) + return ret_val; + + /* Two bits in the Auto Negotiation Advertisement Register + * (Address 4) and two bits in the Auto Negotiation Base + * Page Ability Register (Address 5) determine flow control + * for both the PHY and the link partner. The following + * table, taken out of the IEEE 802.3ab/D6.0 dated March 25, + * 1999, describes these PAUSE resolution bits and how flow + * control is determined based upon these settings. + * NOTE: DC = Don't Care + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution + *-------|---------|-------|---------|-------------------- + * 0 | 0 | DC | DC | E1000_FC_NONE + * 0 | 1 | 0 | DC | E1000_FC_NONE + * 0 | 1 | 1 | 0 | E1000_FC_NONE + * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE + * 1 | 0 | 0 | DC | E1000_FC_NONE + * 1 | DC | 1 | DC | E1000_FC_FULL + * 1 | 1 | 0 | 0 | E1000_FC_NONE + * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE + * + */ + /* Are both PAUSE bits set to 1? If so, this implies + * Symmetric Flow Control is enabled at both ends. The + * ASM_DIR bits are irrelevant per the spec. + * + * For Symmetric Flow Control: + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 1 | DC | 1 | DC | E1000_FC_FULL + * + */ + if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) { + /* Now we need to check if the user selected RX ONLY + * of pause frames. In this case, we had to advertise + * FULL flow control because we could not advertise RX + * ONLY. Hence, we must now check to see if we need to + * turn OFF the TRANSMISSION of PAUSE frames. + */ + if (hw->original_fc == E1000_FC_FULL) { + hw->fc = E1000_FC_FULL; + DEBUGOUT("Flow Control = FULL.\n"); + } else { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); + } + } + /* For receiving PAUSE frames ONLY. + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE + * + */ + else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && + (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { + hw->fc = E1000_FC_TX_PAUSE; + DEBUGOUT("Flow Control = TX PAUSE frames only.\n"); + } + /* For transmitting PAUSE frames ONLY. + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE + * + */ + else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && + !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); + } + /* Per the IEEE spec, at this point flow control should be + * disabled. However, we want to consider that we could + * be connected to a legacy switch that doesn't advertise + * desired flow control, but can be forced on the link + * partner. So if we advertised no flow control, that is + * what we will resolve to. If we advertised some kind of + * receive capability (Rx Pause Only or Full Flow Control) + * and the link partner advertised none, we will configure + * ourselves to enable Rx Flow Control only. We can do + * this safely for two reasons: If the link partner really + * didn't want flow control enabled, and we enable Rx, no + * harm done since we won't be receiving any PAUSE frames + * anyway. If the intent on the link partner was to have + * flow control enabled, then by us enabling RX only, we + * can at least receive pause frames and process them. + * This is a good idea because in most cases, since we are + * predominantly a server NIC, more times than not we will + * be asked to delay transmission of packets than asking + * our link partner to pause transmission of frames. + */ + else if ((hw->original_fc == E1000_FC_NONE || + hw->original_fc == E1000_FC_TX_PAUSE) || + hw->fc_strict_ieee) { + hw->fc = E1000_FC_NONE; + DEBUGOUT("Flow Control = NONE.\n"); + } else { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); + } + + /* Now we need to do one last check... If we auto- + * negotiated to HALF DUPLEX, flow control should not be + * enabled per IEEE 802.3 spec. + */ + ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT("Error getting link speed and duplex\n"); + return ret_val; + } + + if (duplex == HALF_DUPLEX) + hw->fc = E1000_FC_NONE; + + /* Now we call a subroutine to actually force the MAC + * controller to use the correct flow control settings. + */ + ret_val = e1000_force_mac_fc(hw); + if (ret_val) { + DEBUGOUT("Error forcing flow control settings\n"); + return ret_val; + } + } else { + DEBUGOUT("Copper PHY and Auto Neg has not completed.\n"); + } + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Checks to see if the link status of the hardware has changed. + * + * hw - Struct containing variables accessed by shared code + * + * Called by any function that needs to check the link status of the adapter. + *****************************************************************************/ +s32 e1000_check_for_link(struct e1000_hw *hw) +{ + u32 rxcw = 0; + u32 ctrl; + u32 status; + u32 rctl; + u32 icr; + u32 signal = 0; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_for_link"); + + ctrl = er32(CTRL); + status = er32(STATUS); + + /* On adapters with a MAC newer than 82544, SW Defineable pin 1 will be + * set when the optics detect a signal. On older adapters, it will be + * cleared when there is a signal. This applies to fiber media only. + */ + if ((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) { + rxcw = er32(RXCW); + + if (hw->media_type == e1000_media_type_fiber) { + signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; + if (status & E1000_STATUS_LU) + hw->get_link_status = false; + } + } + + /* If we have a copper PHY then we only want to go out to the PHY + * registers to see if Auto-Neg has completed and/or if our link + * status has changed. The get_link_status flag will be set if we + * receive a Link Status Change interrupt or we have Rx Sequence + * Errors. + */ + if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) { + /* First we want to see if the MII Status Register reports + * link. If so, then we want to get the current speed/duplex + * of the PHY. + * Read the register twice since the link bit is sticky. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & MII_SR_LINK_STATUS) { + hw->get_link_status = false; + /* Check if there was DownShift, must be checked immediately after + * link-up */ + e1000_check_downshift(hw); + + /* If we are on 82544 or 82543 silicon and speed/duplex + * are forced to 10H or 10F, then we will implement the polarity + * reversal workaround. We disable interrupts first, and upon + * returning, place the devices interrupt state to its previous + * value except for the link status change interrupt which will + * happen due to the execution of this workaround. + */ + + if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && + (!hw->autoneg) && + (hw->forced_speed_duplex == e1000_10_full || + hw->forced_speed_duplex == e1000_10_half)) { + ew32(IMC, 0xffffffff); + ret_val = e1000_polarity_reversal_workaround(hw); + icr = er32(ICR); + ew32(ICS, (icr & ~E1000_ICS_LSC)); + ew32(IMS, IMS_ENABLE_MASK); + } + + } else { + /* No link detected */ + e1000_config_dsp_after_link_change(hw, false); + return 0; + } + + /* If we are forcing speed/duplex, then we simply return since + * we have already determined whether we have link or not. + */ + if (!hw->autoneg) return -E1000_ERR_CONFIG; + + /* optimize the dsp settings for the igp phy */ + e1000_config_dsp_after_link_change(hw, true); + + /* We have a M88E1000 PHY and Auto-Neg is enabled. If we + * have Si on board that is 82544 or newer, Auto + * Speed Detection takes care of MAC speed/duplex + * configuration. So we only need to configure Collision + * Distance in the MAC. Otherwise, we need to force + * speed/duplex on the MAC to the current PHY speed/duplex + * settings. + */ + if (hw->mac_type >= e1000_82544) + e1000_config_collision_dist(hw); + else { + ret_val = e1000_config_mac_to_phy(hw); + if (ret_val) { + DEBUGOUT("Error configuring MAC to PHY settings\n"); + return ret_val; + } + } + + /* Configure Flow Control now that Auto-Neg has completed. First, we + * need to restore the desired flow control settings because we may + * have had to re-autoneg with a different link partner. + */ + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error configuring flow control\n"); + return ret_val; + } + + /* At this point we know that we are on copper and we have + * auto-negotiated link. These are conditions for checking the link + * partner capability register. We use the link speed to determine if + * TBI compatibility needs to be turned on or off. If the link is not + * at gigabit speed, then TBI compatibility is not needed. If we are + * at gigabit speed, we turn on TBI compatibility. + */ + if (hw->tbi_compatibility_en) { + u16 speed, duplex; + ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT("Error getting link speed and duplex\n"); + return ret_val; + } + if (speed != SPEED_1000) { + /* If link speed is not set to gigabit speed, we do not need + * to enable TBI compatibility. + */ + if (hw->tbi_compatibility_on) { + /* If we previously were in the mode, turn it off. */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_SBP; + ew32(RCTL, rctl); + hw->tbi_compatibility_on = false; + } + } else { + /* If TBI compatibility is was previously off, turn it on. For + * compatibility with a TBI link partner, we will store bad + * packets. Some frames have an additional byte on the end and + * will look like CRC errors to to the hardware. + */ + if (!hw->tbi_compatibility_on) { + hw->tbi_compatibility_on = true; + rctl = er32(RCTL); + rctl |= E1000_RCTL_SBP; + ew32(RCTL, rctl); + } + } + } + } + /* If we don't have link (auto-negotiation failed or link partner cannot + * auto-negotiate), the cable is plugged in (we have signal), and our + * link partner is not trying to auto-negotiate with us (we are receiving + * idles or data), we need to force link up. We also need to give + * auto-negotiation time to complete, in case the cable was just plugged + * in. The autoneg_failed flag does this. + */ + else if ((((hw->media_type == e1000_media_type_fiber) && + ((ctrl & E1000_CTRL_SWDPIN1) == signal)) || + (hw->media_type == e1000_media_type_internal_serdes)) && + (!(status & E1000_STATUS_LU)) && + (!(rxcw & E1000_RXCW_C))) { + if (hw->autoneg_failed == 0) { + hw->autoneg_failed = 1; + return 0; + } + DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n"); + + /* Disable auto-negotiation in the TXCW register */ + ew32(TXCW, (hw->txcw & ~E1000_TXCW_ANE)); + + /* Force link-up and also force full-duplex. */ + ctrl = er32(CTRL); + ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD); + ew32(CTRL, ctrl); + + /* Configure Flow Control after forcing link up. */ + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error configuring flow control\n"); + return ret_val; + } + } + /* If we are forcing link and we are receiving /C/ ordered sets, re-enable + * auto-negotiation in the TXCW register and disable forced link in the + * Device Control register in an attempt to auto-negotiate with our link + * partner. + */ + else if (((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) && + (ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { + DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n"); + ew32(TXCW, hw->txcw); + ew32(CTRL, (ctrl & ~E1000_CTRL_SLU)); + + hw->serdes_link_down = false; + } + /* If we force link for non-auto-negotiation switch, check link status + * based on MAC synchronization for internal serdes media type. + */ + else if ((hw->media_type == e1000_media_type_internal_serdes) && + !(E1000_TXCW_ANE & er32(TXCW))) { + /* SYNCH bit and IV bit are sticky. */ + udelay(10); + if (E1000_RXCW_SYNCH & er32(RXCW)) { + if (!(rxcw & E1000_RXCW_IV)) { + hw->serdes_link_down = false; + DEBUGOUT("SERDES: Link is up.\n"); + } + } else { + hw->serdes_link_down = true; + DEBUGOUT("SERDES: Link is down.\n"); + } + } + if ((hw->media_type == e1000_media_type_internal_serdes) && + (E1000_TXCW_ANE & er32(TXCW))) { + hw->serdes_link_down = !(E1000_STATUS_LU & er32(STATUS)); + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Detects the current speed and duplex settings of the hardware. + * + * hw - Struct containing variables accessed by shared code + * speed - Speed of the connection + * duplex - Duplex setting of the connection + *****************************************************************************/ +s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed, u16 *duplex) +{ + u32 status; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_get_speed_and_duplex"); + + if (hw->mac_type >= e1000_82543) { + status = er32(STATUS); + if (status & E1000_STATUS_SPEED_1000) { + *speed = SPEED_1000; + DEBUGOUT("1000 Mbs, "); + } else if (status & E1000_STATUS_SPEED_100) { + *speed = SPEED_100; + DEBUGOUT("100 Mbs, "); + } else { + *speed = SPEED_10; + DEBUGOUT("10 Mbs, "); + } + + if (status & E1000_STATUS_FD) { + *duplex = FULL_DUPLEX; + DEBUGOUT("Full Duplex\n"); + } else { + *duplex = HALF_DUPLEX; + DEBUGOUT(" Half Duplex\n"); + } + } else { + DEBUGOUT("1000 Mbs, Full Duplex\n"); + *speed = SPEED_1000; + *duplex = FULL_DUPLEX; + } + + /* IGP01 PHY may advertise full duplex operation after speed downgrade even + * if it is operating at half duplex. Here we set the duplex settings to + * match the duplex in the link partner's capabilities. + */ + if (hw->phy_type == e1000_phy_igp && hw->speed_downgraded) { + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &phy_data); + if (ret_val) + return ret_val; + + if (!(phy_data & NWAY_ER_LP_NWAY_CAPS)) + *duplex = HALF_DUPLEX; + else { + ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, &phy_data); + if (ret_val) + return ret_val; + if ((*speed == SPEED_100 && !(phy_data & NWAY_LPAR_100TX_FD_CAPS)) || + (*speed == SPEED_10 && !(phy_data & NWAY_LPAR_10T_FD_CAPS))) + *duplex = HALF_DUPLEX; + } + } + + if ((hw->mac_type == e1000_80003es2lan) && + (hw->media_type == e1000_media_type_copper)) { + if (*speed == SPEED_1000) + ret_val = e1000_configure_kmrn_for_1000(hw); + else + ret_val = e1000_configure_kmrn_for_10_100(hw, *duplex); + if (ret_val) + return ret_val; + } + + if ((hw->phy_type == e1000_phy_igp_3) && (*speed == SPEED_1000)) { + ret_val = e1000_kumeran_lock_loss_workaround(hw); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Blocks until autoneg completes or times out (~4.5 seconds) +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_wait_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 i; + u16 phy_data; + + DEBUGFUNC("e1000_wait_autoneg"); + DEBUGOUT("Waiting for Auto-Neg to complete.\n"); + + /* We will wait for autoneg to complete or 4.5 seconds to expire. */ + for (i = PHY_AUTO_NEG_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Auto-Neg + * Complete bit to be set. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + if (phy_data & MII_SR_AUTONEG_COMPLETE) { + return E1000_SUCCESS; + } + msleep(100); + } + return E1000_SUCCESS; +} + +/****************************************************************************** +* Raises the Management Data Clock +* +* hw - Struct containing variables accessed by shared code +* ctrl - Device control register's current value +******************************************************************************/ +static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl) +{ + /* Raise the clock input to the Management Data Clock (by setting the MDC + * bit), and then delay 10 microseconds. + */ + ew32(CTRL, (*ctrl | E1000_CTRL_MDC)); + E1000_WRITE_FLUSH(); + udelay(10); +} + +/****************************************************************************** +* Lowers the Management Data Clock +* +* hw - Struct containing variables accessed by shared code +* ctrl - Device control register's current value +******************************************************************************/ +static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl) +{ + /* Lower the clock input to the Management Data Clock (by clearing the MDC + * bit), and then delay 10 microseconds. + */ + ew32(CTRL, (*ctrl & ~E1000_CTRL_MDC)); + E1000_WRITE_FLUSH(); + udelay(10); +} + +/****************************************************************************** +* Shifts data bits out to the PHY +* +* hw - Struct containing variables accessed by shared code +* data - Data to send out to the PHY +* count - Number of bits to shift out +* +* Bits are shifted out in MSB to LSB order. +******************************************************************************/ +static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, u16 count) +{ + u32 ctrl; + u32 mask; + + /* We need to shift "count" number of bits out to the PHY. So, the value + * in the "data" parameter will be shifted out to the PHY one bit at a + * time. In order to do this, "data" must be broken down into bits. + */ + mask = 0x01; + mask <<= (count - 1); + + ctrl = er32(CTRL); + + /* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */ + ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR); + + while (mask) { + /* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and + * then raising and lowering the Management Data Clock. A "0" is + * shifted out to the PHY by setting the MDIO bit to "0" and then + * raising and lowering the clock. + */ + if (data & mask) + ctrl |= E1000_CTRL_MDIO; + else + ctrl &= ~E1000_CTRL_MDIO; + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + udelay(10); + + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + mask = mask >> 1; + } +} + +/****************************************************************************** +* Shifts data bits in from the PHY +* +* hw - Struct containing variables accessed by shared code +* +* Bits are shifted in in MSB to LSB order. +******************************************************************************/ +static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw) +{ + u32 ctrl; + u16 data = 0; + u8 i; + + /* In order to read a register from the PHY, we need to shift in a total + * of 18 bits from the PHY. The first two bit (turnaround) times are used + * to avoid contention on the MDIO pin when a read operation is performed. + * These two bits are ignored by us and thrown away. Bits are "shifted in" + * by raising the input to the Management Data Clock (setting the MDC bit), + * and then reading the value of the MDIO bit. + */ + ctrl = er32(CTRL); + + /* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */ + ctrl &= ~E1000_CTRL_MDIO_DIR; + ctrl &= ~E1000_CTRL_MDIO; + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + /* Raise and Lower the clock before reading in the data. This accounts for + * the turnaround bits. The first clock occurred when we clocked out the + * last bit of the Register Address. + */ + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + for (data = 0, i = 0; i < 16; i++) { + data = data << 1; + e1000_raise_mdi_clk(hw, &ctrl); + ctrl = er32(CTRL); + /* Check to see if we shifted in a "1". */ + if (ctrl & E1000_CTRL_MDIO) + data |= 1; + e1000_lower_mdi_clk(hw, &ctrl); + } + + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + return data; +} + +static s32 e1000_swfw_sync_acquire(struct e1000_hw *hw, u16 mask) +{ + u32 swfw_sync = 0; + u32 swmask = mask; + u32 fwmask = mask << 16; + s32 timeout = 200; + + DEBUGFUNC("e1000_swfw_sync_acquire"); + + if (hw->swfwhw_semaphore_present) + return e1000_get_software_flag(hw); + + if (!hw->swfw_sync_present) + return e1000_get_hw_eeprom_semaphore(hw); + + while (timeout) { + if (e1000_get_hw_eeprom_semaphore(hw)) + return -E1000_ERR_SWFW_SYNC; + + swfw_sync = er32(SW_FW_SYNC); + if (!(swfw_sync & (fwmask | swmask))) { + break; + } + + /* firmware currently using resource (fwmask) */ + /* or other software thread currently using resource (swmask) */ + e1000_put_hw_eeprom_semaphore(hw); + mdelay(5); + timeout--; + } + + if (!timeout) { + DEBUGOUT("Driver can't access resource, SW_FW_SYNC timeout.\n"); + return -E1000_ERR_SWFW_SYNC; + } + + swfw_sync |= swmask; + ew32(SW_FW_SYNC, swfw_sync); + + e1000_put_hw_eeprom_semaphore(hw); + return E1000_SUCCESS; +} + +static void e1000_swfw_sync_release(struct e1000_hw *hw, u16 mask) +{ + u32 swfw_sync; + u32 swmask = mask; + + DEBUGFUNC("e1000_swfw_sync_release"); + + if (hw->swfwhw_semaphore_present) { + e1000_release_software_flag(hw); + return; + } + + if (!hw->swfw_sync_present) { + e1000_put_hw_eeprom_semaphore(hw); + return; + } + + /* if (e1000_get_hw_eeprom_semaphore(hw)) + * return -E1000_ERR_SWFW_SYNC; */ + while (e1000_get_hw_eeprom_semaphore(hw) != E1000_SUCCESS); + /* empty */ + + swfw_sync = er32(SW_FW_SYNC); + swfw_sync &= ~swmask; + ew32(SW_FW_SYNC, swfw_sync); + + e1000_put_hw_eeprom_semaphore(hw); +} + +/***************************************************************************** +* Reads the value from a PHY register, if the value is on a specific non zero +* page, sets the page first. +* hw - Struct containing variables accessed by shared code +* reg_addr - address of the PHY register to read +******************************************************************************/ +s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 *phy_data) +{ + u32 ret_val; + u16 swfw; + + DEBUGFUNC("e1000_read_phy_reg"); + + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) + return -E1000_ERR_SWFW_SYNC; + + if ((hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) && + (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { + ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, + (u16)reg_addr); + if (ret_val) { + e1000_swfw_sync_release(hw, swfw); + return ret_val; + } + } else if (hw->phy_type == e1000_phy_gg82563) { + if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || + (hw->mac_type == e1000_80003es2lan)) { + /* Select Configuration Page */ + if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { + ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, + (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); + } else { + /* Use Alternative Page Select register to access + * registers 30 and 31 + */ + ret_val = e1000_write_phy_reg_ex(hw, + GG82563_PHY_PAGE_SELECT_ALT, + (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); + } + + if (ret_val) { + e1000_swfw_sync_release(hw, swfw); + return ret_val; + } + } + } + + ret_val = e1000_read_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, + phy_data); + + e1000_swfw_sync_release(hw, swfw); + return ret_val; +} + +static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 *phy_data) +{ + u32 i; + u32 mdic = 0; + const u32 phy_addr = 1; + + DEBUGFUNC("e1000_read_phy_reg_ex"); + + if (reg_addr > MAX_PHY_REG_ADDRESS) { + DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); + return -E1000_ERR_PARAM; + } + + if (hw->mac_type > e1000_82543) { + /* Set up Op-code, Phy Address, and register address in the MDI + * Control register. The MAC will take care of interfacing with the + * PHY to retrieve the desired data. + */ + mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) | + (phy_addr << E1000_MDIC_PHY_SHIFT) | + (E1000_MDIC_OP_READ)); + + ew32(MDIC, mdic); + + /* Poll the ready bit to see if the MDI read completed */ + for (i = 0; i < 64; i++) { + udelay(50); + mdic = er32(MDIC); + if (mdic & E1000_MDIC_READY) break; + } + if (!(mdic & E1000_MDIC_READY)) { + DEBUGOUT("MDI Read did not complete\n"); + return -E1000_ERR_PHY; + } + if (mdic & E1000_MDIC_ERROR) { + DEBUGOUT("MDI Error\n"); + return -E1000_ERR_PHY; + } + *phy_data = (u16)mdic; + } else { + /* We must first send a preamble through the MDIO pin to signal the + * beginning of an MII instruction. This is done by sending 32 + * consecutive "1" bits. + */ + e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); + + /* Now combine the next few fields that are required for a read + * operation. We use this method instead of calling the + * e1000_shift_out_mdi_bits routine five different times. The format of + * a MII read instruction consists of a shift out of 14 bits and is + * defined as follows: + * + * followed by a shift in of 18 bits. This first two bits shifted in + * are TurnAround bits used to avoid contention on the MDIO pin when a + * READ operation is performed. These two bits are thrown away + * followed by a shift in of 16 bits which contains the desired data. + */ + mdic = ((reg_addr) | (phy_addr << 5) | + (PHY_OP_READ << 10) | (PHY_SOF << 12)); + + e1000_shift_out_mdi_bits(hw, mdic, 14); + + /* Now that we've shifted out the read command to the MII, we need to + * "shift in" the 16-bit value (18 total bits) of the requested PHY + * register address. + */ + *phy_data = e1000_shift_in_mdi_bits(hw); + } + return E1000_SUCCESS; +} + +/****************************************************************************** +* Writes a value to a PHY register +* +* hw - Struct containing variables accessed by shared code +* reg_addr - address of the PHY register to write +* data - data to write to the PHY +******************************************************************************/ +s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 phy_data) +{ + u32 ret_val; + u16 swfw; + + DEBUGFUNC("e1000_write_phy_reg"); + + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) + return -E1000_ERR_SWFW_SYNC; + + if ((hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) && + (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { + ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, + (u16)reg_addr); + if (ret_val) { + e1000_swfw_sync_release(hw, swfw); + return ret_val; + } + } else if (hw->phy_type == e1000_phy_gg82563) { + if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || + (hw->mac_type == e1000_80003es2lan)) { + /* Select Configuration Page */ + if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { + ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, + (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); + } else { + /* Use Alternative Page Select register to access + * registers 30 and 31 + */ + ret_val = e1000_write_phy_reg_ex(hw, + GG82563_PHY_PAGE_SELECT_ALT, + (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); + } + + if (ret_val) { + e1000_swfw_sync_release(hw, swfw); + return ret_val; + } + } + } + + ret_val = e1000_write_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, + phy_data); + + e1000_swfw_sync_release(hw, swfw); + return ret_val; +} + +static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 phy_data) +{ + u32 i; + u32 mdic = 0; + const u32 phy_addr = 1; + + DEBUGFUNC("e1000_write_phy_reg_ex"); + + if (reg_addr > MAX_PHY_REG_ADDRESS) { + DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); + return -E1000_ERR_PARAM; + } + + if (hw->mac_type > e1000_82543) { + /* Set up Op-code, Phy Address, register address, and data intended + * for the PHY register in the MDI Control register. The MAC will take + * care of interfacing with the PHY to send the desired data. + */ + mdic = (((u32)phy_data) | + (reg_addr << E1000_MDIC_REG_SHIFT) | + (phy_addr << E1000_MDIC_PHY_SHIFT) | + (E1000_MDIC_OP_WRITE)); + + ew32(MDIC, mdic); + + /* Poll the ready bit to see if the MDI read completed */ + for (i = 0; i < 641; i++) { + udelay(5); + mdic = er32(MDIC); + if (mdic & E1000_MDIC_READY) break; + } + if (!(mdic & E1000_MDIC_READY)) { + DEBUGOUT("MDI Write did not complete\n"); + return -E1000_ERR_PHY; + } + } else { + /* We'll need to use the SW defined pins to shift the write command + * out to the PHY. We first send a preamble to the PHY to signal the + * beginning of the MII instruction. This is done by sending 32 + * consecutive "1" bits. + */ + e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); + + /* Now combine the remaining required fields that will indicate a + * write operation. We use this method instead of calling the + * e1000_shift_out_mdi_bits routine for each field in the command. The + * format of a MII write instruction is as follows: + * . + */ + mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) | + (PHY_OP_WRITE << 12) | (PHY_SOF << 14)); + mdic <<= 16; + mdic |= (u32)phy_data; + + e1000_shift_out_mdi_bits(hw, mdic, 32); + } + + return E1000_SUCCESS; +} + +static s32 e1000_read_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 *data) +{ + u32 reg_val; + u16 swfw; + DEBUGFUNC("e1000_read_kmrn_reg"); + + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) + return -E1000_ERR_SWFW_SYNC; + + /* Write register address */ + reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & + E1000_KUMCTRLSTA_OFFSET) | + E1000_KUMCTRLSTA_REN; + ew32(KUMCTRLSTA, reg_val); + udelay(2); + + /* Read the data returned */ + reg_val = er32(KUMCTRLSTA); + *data = (u16)reg_val; + + e1000_swfw_sync_release(hw, swfw); + return E1000_SUCCESS; +} + +static s32 e1000_write_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 data) +{ + u32 reg_val; + u16 swfw; + DEBUGFUNC("e1000_write_kmrn_reg"); + + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) + return -E1000_ERR_SWFW_SYNC; + + reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & + E1000_KUMCTRLSTA_OFFSET) | data; + ew32(KUMCTRLSTA, reg_val); + udelay(2); + + e1000_swfw_sync_release(hw, swfw); + return E1000_SUCCESS; +} + +/****************************************************************************** +* Returns the PHY to the power-on reset state +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +s32 e1000_phy_hw_reset(struct e1000_hw *hw) +{ + u32 ctrl, ctrl_ext; + u32 led_ctrl; + s32 ret_val; + u16 swfw; + + DEBUGFUNC("e1000_phy_hw_reset"); + + /* In the case of the phy reset being blocked, it's not an error, we + * simply return success without performing the reset. */ + ret_val = e1000_check_phy_reset_block(hw); + if (ret_val) + return E1000_SUCCESS; + + DEBUGOUT("Resetting Phy...\n"); + + if (hw->mac_type > e1000_82543) { + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) { + DEBUGOUT("Unable to acquire swfw sync\n"); + return -E1000_ERR_SWFW_SYNC; + } + /* Read the device control register and assert the E1000_CTRL_PHY_RST + * bit. Then, take it out of reset. + * For pre-e1000_82571 hardware, we delay for 10ms between the assert + * and deassert. For e1000_82571 hardware and later, we instead delay + * for 50us between and 10ms after the deassertion. + */ + ctrl = er32(CTRL); + ew32(CTRL, ctrl | E1000_CTRL_PHY_RST); + E1000_WRITE_FLUSH(); + + if (hw->mac_type < e1000_82571) + msleep(10); + else + udelay(100); + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + if (hw->mac_type >= e1000_82571) + mdelay(10); + + e1000_swfw_sync_release(hw, swfw); + } else { + /* Read the Extended Device Control Register, assert the PHY_RESET_DIR + * bit to put the PHY into reset. Then, take it out of reset. + */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR; + ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + msleep(10); + ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + } + udelay(150); + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* Wait for FW to finish PHY configuration. */ + ret_val = e1000_get_phy_cfg_done(hw); + if (ret_val != E1000_SUCCESS) + return ret_val; + e1000_release_software_semaphore(hw); + + if ((hw->mac_type == e1000_ich8lan) && (hw->phy_type == e1000_phy_igp_3)) + ret_val = e1000_init_lcd_from_nvm(hw); + + return ret_val; +} + +/****************************************************************************** +* Resets the PHY +* +* hw - Struct containing variables accessed by shared code +* +* Sets bit 15 of the MII Control register +******************************************************************************/ +s32 e1000_phy_reset(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_phy_reset"); + + /* In the case of the phy reset being blocked, it's not an error, we + * simply return success without performing the reset. */ + ret_val = e1000_check_phy_reset_block(hw); + if (ret_val) + return E1000_SUCCESS; + + switch (hw->phy_type) { + case e1000_phy_igp: + case e1000_phy_igp_2: + case e1000_phy_igp_3: + case e1000_phy_ife: + ret_val = e1000_phy_hw_reset(hw); + if (ret_val) + return ret_val; + break; + default: + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= MII_CR_RESET; + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); + if (ret_val) + return ret_val; + + udelay(1); + break; + } + + if (hw->phy_type == e1000_phy_igp || hw->phy_type == e1000_phy_igp_2) + e1000_phy_init_script(hw); + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Work-around for 82566 power-down: on D3 entry- +* 1) disable gigabit link +* 2) write VR power-down enable +* 3) read it back +* if successful continue, else issue LCD reset and repeat +* +* hw - struct containing variables accessed by shared code +******************************************************************************/ +void e1000_phy_powerdown_workaround(struct e1000_hw *hw) +{ + s32 reg; + u16 phy_data; + s32 retry = 0; + + DEBUGFUNC("e1000_phy_powerdown_workaround"); + + if (hw->phy_type != e1000_phy_igp_3) + return; + + do { + /* Disable link */ + reg = er32(PHY_CTRL); + ew32(PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | + E1000_PHY_CTRL_NOND0A_GBE_DISABLE); + + /* Write VR power-down enable - bits 9:8 should be 10b */ + e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); + phy_data |= (1 << 9); + phy_data &= ~(1 << 8); + e1000_write_phy_reg(hw, IGP3_VR_CTRL, phy_data); + + /* Read it back and test */ + e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); + if (((phy_data & IGP3_VR_CTRL_MODE_MASK) == IGP3_VR_CTRL_MODE_SHUT) || retry) + break; + + /* Issue PHY reset and repeat at most one more time */ + reg = er32(CTRL); + ew32(CTRL, reg | E1000_CTRL_PHY_RST); + retry++; + } while (retry); + + return; + +} + +/****************************************************************************** +* Work-around for 82566 Kumeran PCS lock loss: +* On link status change (i.e. PCI reset, speed change) and link is up and +* speed is gigabit- +* 0) if workaround is optionally disabled do nothing +* 1) wait 1ms for Kumeran link to come up +* 2) check Kumeran Diagnostic register PCS lock loss bit +* 3) if not set the link is locked (all is good), otherwise... +* 4) reset the PHY +* 5) repeat up to 10 times +* Note: this is only called for IGP3 copper when speed is 1gb. +* +* hw - struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw) +{ + s32 ret_val; + s32 reg; + s32 cnt; + u16 phy_data; + + if (hw->kmrn_lock_loss_workaround_disabled) + return E1000_SUCCESS; + + /* Make sure link is up before proceeding. If not just return. + * Attempting this while link is negotiating fouled up link + * stability */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + + if (phy_data & MII_SR_LINK_STATUS) { + for (cnt = 0; cnt < 10; cnt++) { + /* read once to clear */ + ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); + if (ret_val) + return ret_val; + /* and again to get new status */ + ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); + if (ret_val) + return ret_val; + + /* check for PCS lock */ + if (!(phy_data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS)) + return E1000_SUCCESS; + + /* Issue PHY reset */ + e1000_phy_hw_reset(hw); + mdelay(5); + } + /* Disable GigE link negotiation */ + reg = er32(PHY_CTRL); + ew32(PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | + E1000_PHY_CTRL_NOND0A_GBE_DISABLE); + + /* unable to acquire PCS lock */ + return E1000_ERR_PHY; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Probes the expected PHY address for known PHY IDs +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_detect_gig_phy(struct e1000_hw *hw) +{ + s32 phy_init_status, ret_val; + u16 phy_id_high, phy_id_low; + bool match = false; + + DEBUGFUNC("e1000_detect_gig_phy"); + + if (hw->phy_id != 0) + return E1000_SUCCESS; + + /* The 82571 firmware may still be configuring the PHY. In this + * case, we cannot access the PHY until the configuration is done. So + * we explicitly set the PHY values. */ + if (hw->mac_type == e1000_82571 || + hw->mac_type == e1000_82572) { + hw->phy_id = IGP01E1000_I_PHY_ID; + hw->phy_type = e1000_phy_igp_2; + return E1000_SUCCESS; + } + + /* ESB-2 PHY reads require e1000_phy_gg82563 to be set because of a work- + * around that forces PHY page 0 to be set or the reads fail. The rest of + * the code in this routine uses e1000_read_phy_reg to read the PHY ID. + * So for ESB-2 we need to have this set so our reads won't fail. If the + * attached PHY is not a e1000_phy_gg82563, the routines below will figure + * this out as well. */ + if (hw->mac_type == e1000_80003es2lan) + hw->phy_type = e1000_phy_gg82563; + + /* Read the PHY ID Registers to identify which PHY is onboard. */ + ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high); + if (ret_val) + return ret_val; + + hw->phy_id = (u32)(phy_id_high << 16); + udelay(20); + ret_val = e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low); + if (ret_val) + return ret_val; + + hw->phy_id |= (u32)(phy_id_low & PHY_REVISION_MASK); + hw->phy_revision = (u32)phy_id_low & ~PHY_REVISION_MASK; + + switch (hw->mac_type) { + case e1000_82543: + if (hw->phy_id == M88E1000_E_PHY_ID) match = true; + break; + case e1000_82544: + if (hw->phy_id == M88E1000_I_PHY_ID) match = true; + break; + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + if (hw->phy_id == M88E1011_I_PHY_ID) match = true; + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (hw->phy_id == IGP01E1000_I_PHY_ID) match = true; + break; + case e1000_82573: + if (hw->phy_id == M88E1111_I_PHY_ID) match = true; + break; + case e1000_80003es2lan: + if (hw->phy_id == GG82563_E_PHY_ID) match = true; + break; + case e1000_ich8lan: + if (hw->phy_id == IGP03E1000_E_PHY_ID) match = true; + if (hw->phy_id == IFE_E_PHY_ID) match = true; + if (hw->phy_id == IFE_PLUS_E_PHY_ID) match = true; + if (hw->phy_id == IFE_C_E_PHY_ID) match = true; + break; + default: + DEBUGOUT1("Invalid MAC type %d\n", hw->mac_type); + return -E1000_ERR_CONFIG; + } + phy_init_status = e1000_set_phy_type(hw); + + if ((match) && (phy_init_status == E1000_SUCCESS)) { + DEBUGOUT1("PHY ID 0x%X detected\n", hw->phy_id); + return E1000_SUCCESS; + } + DEBUGOUT1("Invalid PHY ID 0x%X\n", hw->phy_id); + return -E1000_ERR_PHY; +} + +/****************************************************************************** +* Resets the PHY's DSP +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_phy_reset_dsp(struct e1000_hw *hw) +{ + s32 ret_val; + DEBUGFUNC("e1000_phy_reset_dsp"); + + do { + if (hw->phy_type != e1000_phy_gg82563) { + ret_val = e1000_write_phy_reg(hw, 29, 0x001d); + if (ret_val) break; + } + ret_val = e1000_write_phy_reg(hw, 30, 0x00c1); + if (ret_val) break; + ret_val = e1000_write_phy_reg(hw, 30, 0x0000); + if (ret_val) break; + ret_val = E1000_SUCCESS; + } while (0); + + return ret_val; +} + +/****************************************************************************** +* Get PHY information from various PHY registers for igp PHY only. +* +* hw - Struct containing variables accessed by shared code +* phy_info - PHY information structure +******************************************************************************/ +static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data, min_length, max_length, average; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_igp_get_info"); + + /* The downshift status is checked only once, after link is established, + * and it stored in the hw->speed_downgraded parameter. */ + phy_info->downshift = (e1000_downshift)hw->speed_downgraded; + + /* IGP01E1000 does not need to support it. */ + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; + + /* IGP01E1000 always correct polarity reversal */ + phy_info->polarity_correction = e1000_polarity_reversal_enabled; + + /* Check polarity status */ + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & IGP01E1000_PSSR_MDIX) >> + IGP01E1000_PSSR_MDIX_SHIFT); + + if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == + IGP01E1000_PSSR_SPEED_1000MBPS) { + /* Local/Remote Receiver Information are only valid at 1000 Mbps */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> + SR_1000T_LOCAL_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> + SR_1000T_REMOTE_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + + /* Get cable length */ + ret_val = e1000_get_cable_length(hw, &min_length, &max_length); + if (ret_val) + return ret_val; + + /* Translate to old method */ + average = (max_length + min_length) / 2; + + if (average <= e1000_igp_cable_length_50) + phy_info->cable_length = e1000_cable_length_50; + else if (average <= e1000_igp_cable_length_80) + phy_info->cable_length = e1000_cable_length_50_80; + else if (average <= e1000_igp_cable_length_110) + phy_info->cable_length = e1000_cable_length_80_110; + else if (average <= e1000_igp_cable_length_140) + phy_info->cable_length = e1000_cable_length_110_140; + else + phy_info->cable_length = e1000_cable_length_140; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Get PHY information from various PHY registers for ife PHY only. +* +* hw - Struct containing variables accessed by shared code +* phy_info - PHY information structure +******************************************************************************/ +static s32 e1000_phy_ife_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_ife_get_info"); + + phy_info->downshift = (e1000_downshift)hw->speed_downgraded; + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; + + ret_val = e1000_read_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, &phy_data); + if (ret_val) + return ret_val; + phy_info->polarity_correction = + ((phy_data & IFE_PSC_AUTO_POLARITY_DISABLE) >> + IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT) ? + e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; + + if (phy_info->polarity_correction == e1000_polarity_reversal_enabled) { + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + } else { + /* Polarity is forced. */ + polarity = ((phy_data & IFE_PSC_FORCE_POLARITY) >> + IFE_PSC_FORCE_POLARITY_SHIFT) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + } + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = (e1000_auto_x_mode) + ((phy_data & (IFE_PMC_AUTO_MDIX | IFE_PMC_FORCE_MDIX)) >> + IFE_PMC_MDIX_MODE_SHIFT); + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Get PHY information from various PHY registers fot m88 PHY only. +* +* hw - Struct containing variables accessed by shared code +* phy_info - PHY information structure +******************************************************************************/ +static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_m88_get_info"); + + /* The downshift status is checked only once, after link is established, + * and it stored in the hw->speed_downgraded parameter. */ + phy_info->downshift = (e1000_downshift)hw->speed_downgraded; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_info->extended_10bt_distance = + ((phy_data & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >> + M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT) ? + e1000_10bt_ext_dist_enable_lower : e1000_10bt_ext_dist_enable_normal; + + phy_info->polarity_correction = + ((phy_data & M88E1000_PSCR_POLARITY_REVERSAL) >> + M88E1000_PSCR_POLARITY_REVERSAL_SHIFT) ? + e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; + + /* Check polarity status */ + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & M88E1000_PSSR_MDIX) >> + M88E1000_PSSR_MDIX_SHIFT); + + if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) { + /* Cable Length Estimation and Local/Remote Receiver Information + * are only valid at 1000 Mbps. + */ + if (hw->phy_type != e1000_phy_gg82563) { + phy_info->cable_length = (e1000_cable_length)((phy_data & M88E1000_PSSR_CABLE_LENGTH) >> + M88E1000_PSSR_CABLE_LENGTH_SHIFT); + } else { + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, + &phy_data); + if (ret_val) + return ret_val; + + phy_info->cable_length = (e1000_cable_length)(phy_data & GG82563_DSPD_CABLE_LENGTH); + } + + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> + SR_1000T_LOCAL_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> + SR_1000T_REMOTE_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Get PHY information from various PHY registers +* +* hw - Struct containing variables accessed by shared code +* phy_info - PHY information structure +******************************************************************************/ +s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_phy_get_info"); + + phy_info->cable_length = e1000_cable_length_undefined; + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined; + phy_info->cable_polarity = e1000_rev_polarity_undefined; + phy_info->downshift = e1000_downshift_undefined; + phy_info->polarity_correction = e1000_polarity_reversal_undefined; + phy_info->mdix_mode = e1000_auto_x_mode_undefined; + phy_info->local_rx = e1000_1000t_rx_status_undefined; + phy_info->remote_rx = e1000_1000t_rx_status_undefined; + + if (hw->media_type != e1000_media_type_copper) { + DEBUGOUT("PHY info is only valid for copper media\n"); + return -E1000_ERR_CONFIG; + } + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if ((phy_data & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS) { + DEBUGOUT("PHY info is only valid if link is up\n"); + return -E1000_ERR_CONFIG; + } + + if (hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) + return e1000_phy_igp_get_info(hw, phy_info); + else if (hw->phy_type == e1000_phy_ife) + return e1000_phy_ife_get_info(hw, phy_info); + else + return e1000_phy_m88_get_info(hw, phy_info); +} + +s32 e1000_validate_mdi_setting(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_validate_mdi_settings"); + + if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) { + DEBUGOUT("Invalid MDI setting detected\n"); + hw->mdix = 1; + return -E1000_ERR_CONFIG; + } + return E1000_SUCCESS; +} + + +/****************************************************************************** + * Sets up eeprom variables in the hw struct. Must be called after mac_type + * is configured. Additionally, if this is ICH8, the flash controller GbE + * registers must be mapped, or this will crash. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_init_eeprom_params(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd = er32(EECD); + s32 ret_val = E1000_SUCCESS; + u16 eeprom_size; + + DEBUGFUNC("e1000_init_eeprom_params"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + eeprom->type = e1000_eeprom_microwire; + eeprom->word_size = 64; + eeprom->opcode_bits = 3; + eeprom->address_bits = 6; + eeprom->delay_usec = 50; + eeprom->use_eerd = false; + eeprom->use_eewr = false; + break; + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + eeprom->type = e1000_eeprom_microwire; + eeprom->opcode_bits = 3; + eeprom->delay_usec = 50; + if (eecd & E1000_EECD_SIZE) { + eeprom->word_size = 256; + eeprom->address_bits = 8; + } else { + eeprom->word_size = 64; + eeprom->address_bits = 6; + } + eeprom->use_eerd = false; + eeprom->use_eewr = false; + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (eecd & E1000_EECD_TYPE) { + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + } else { + eeprom->type = e1000_eeprom_microwire; + eeprom->opcode_bits = 3; + eeprom->delay_usec = 50; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->word_size = 256; + eeprom->address_bits = 8; + } else { + eeprom->word_size = 64; + eeprom->address_bits = 6; + } + } + eeprom->use_eerd = false; + eeprom->use_eewr = false; + break; + case e1000_82571: + case e1000_82572: + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + eeprom->use_eerd = false; + eeprom->use_eewr = false; + break; + case e1000_82573: + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + eeprom->use_eerd = true; + eeprom->use_eewr = true; + if (!e1000_is_onboard_nvm_eeprom(hw)) { + eeprom->type = e1000_eeprom_flash; + eeprom->word_size = 2048; + + /* Ensure that the Autonomous FLASH update bit is cleared due to + * Flash update issue on parts which use a FLASH for NVM. */ + eecd &= ~E1000_EECD_AUPDEN; + ew32(EECD, eecd); + } + break; + case e1000_80003es2lan: + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + eeprom->use_eerd = true; + eeprom->use_eewr = false; + break; + case e1000_ich8lan: + { + s32 i = 0; + u32 flash_size = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_GFPREG); + + eeprom->type = e1000_eeprom_ich8; + eeprom->use_eerd = false; + eeprom->use_eewr = false; + eeprom->word_size = E1000_SHADOW_RAM_WORDS; + + /* Zero the shadow RAM structure. But don't load it from NVM + * so as to save time for driver init */ + if (hw->eeprom_shadow_ram != NULL) { + for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { + hw->eeprom_shadow_ram[i].modified = false; + hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; + } + } + + hw->flash_base_addr = (flash_size & ICH_GFPREG_BASE_MASK) * + ICH_FLASH_SECTOR_SIZE; + + hw->flash_bank_size = ((flash_size >> 16) & ICH_GFPREG_BASE_MASK) + 1; + hw->flash_bank_size -= (flash_size & ICH_GFPREG_BASE_MASK); + + hw->flash_bank_size *= ICH_FLASH_SECTOR_SIZE; + + hw->flash_bank_size /= 2 * sizeof(u16); + + break; + } + default: + break; + } + + if (eeprom->type == e1000_eeprom_spi) { + /* eeprom_size will be an enum [0..8] that maps to eeprom sizes 128B to + * 32KB (incremented by powers of 2). + */ + if (hw->mac_type <= e1000_82547_rev_2) { + /* Set to default value for initial eeprom read. */ + eeprom->word_size = 64; + ret_val = e1000_read_eeprom(hw, EEPROM_CFG, 1, &eeprom_size); + if (ret_val) + return ret_val; + eeprom_size = (eeprom_size & EEPROM_SIZE_MASK) >> EEPROM_SIZE_SHIFT; + /* 256B eeprom size was not supported in earlier hardware, so we + * bump eeprom_size up one to ensure that "1" (which maps to 256B) + * is never the result used in the shifting logic below. */ + if (eeprom_size) + eeprom_size++; + } else { + eeprom_size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> + E1000_EECD_SIZE_EX_SHIFT); + } + + eeprom->word_size = 1 << (eeprom_size + EEPROM_WORD_SIZE_SHIFT); + } + return ret_val; +} + +/****************************************************************************** + * Raises the EEPROM's clock input. + * + * hw - Struct containing variables accessed by shared code + * eecd - EECD's current value + *****************************************************************************/ +static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd) +{ + /* Raise the clock input to the EEPROM (by setting the SK bit), and then + * wait microseconds. + */ + *eecd = *eecd | E1000_EECD_SK; + ew32(EECD, *eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); +} + +/****************************************************************************** + * Lowers the EEPROM's clock input. + * + * hw - Struct containing variables accessed by shared code + * eecd - EECD's current value + *****************************************************************************/ +static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd) +{ + /* Lower the clock input to the EEPROM (by clearing the SK bit), and then + * wait 50 microseconds. + */ + *eecd = *eecd & ~E1000_EECD_SK; + ew32(EECD, *eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); +} + +/****************************************************************************** + * Shift data bits out to the EEPROM. + * + * hw - Struct containing variables accessed by shared code + * data - data to send to the EEPROM + * count - number of bits to shift out + *****************************************************************************/ +static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, u16 count) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + u32 mask; + + /* We need to shift "count" bits out to the EEPROM. So, value in the + * "data" parameter will be shifted out to the EEPROM one bit at a time. + * In order to do this, "data" must be broken down into bits. + */ + mask = 0x01 << (count - 1); + eecd = er32(EECD); + if (eeprom->type == e1000_eeprom_microwire) { + eecd &= ~E1000_EECD_DO; + } else if (eeprom->type == e1000_eeprom_spi) { + eecd |= E1000_EECD_DO; + } + do { + /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1", + * and then raising and then lowering the clock (the SK bit controls + * the clock input to the EEPROM). A "0" is shifted out to the EEPROM + * by setting "DI" to "0" and then raising and then lowering the clock. + */ + eecd &= ~E1000_EECD_DI; + + if (data & mask) + eecd |= E1000_EECD_DI; + + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + + udelay(eeprom->delay_usec); + + e1000_raise_ee_clk(hw, &eecd); + e1000_lower_ee_clk(hw, &eecd); + + mask = mask >> 1; + + } while (mask); + + /* We leave the "DI" bit set to "0" when we leave this routine. */ + eecd &= ~E1000_EECD_DI; + ew32(EECD, eecd); +} + +/****************************************************************************** + * Shift data bits in from the EEPROM + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count) +{ + u32 eecd; + u32 i; + u16 data; + + /* In order to read a register from the EEPROM, we need to shift 'count' + * bits in from the EEPROM. Bits are "shifted in" by raising the clock + * input to the EEPROM (setting the SK bit), and then reading the value of + * the "DO" bit. During this "shifting in" process the "DI" bit should + * always be clear. + */ + + eecd = er32(EECD); + + eecd &= ~(E1000_EECD_DO | E1000_EECD_DI); + data = 0; + + for (i = 0; i < count; i++) { + data = data << 1; + e1000_raise_ee_clk(hw, &eecd); + + eecd = er32(EECD); + + eecd &= ~(E1000_EECD_DI); + if (eecd & E1000_EECD_DO) + data |= 1; + + e1000_lower_ee_clk(hw, &eecd); + } + + return data; +} + +/****************************************************************************** + * Prepares EEPROM for access + * + * hw - Struct containing variables accessed by shared code + * + * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This + * function should be called before issuing a command to the EEPROM. + *****************************************************************************/ +static s32 e1000_acquire_eeprom(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd, i=0; + + DEBUGFUNC("e1000_acquire_eeprom"); + + if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) + return -E1000_ERR_SWFW_SYNC; + eecd = er32(EECD); + + if (hw->mac_type != e1000_82573) { + /* Request EEPROM Access */ + if (hw->mac_type > e1000_82544) { + eecd |= E1000_EECD_REQ; + ew32(EECD, eecd); + eecd = er32(EECD); + while ((!(eecd & E1000_EECD_GNT)) && + (i < E1000_EEPROM_GRANT_ATTEMPTS)) { + i++; + udelay(5); + eecd = er32(EECD); + } + if (!(eecd & E1000_EECD_GNT)) { + eecd &= ~E1000_EECD_REQ; + ew32(EECD, eecd); + DEBUGOUT("Could not acquire EEPROM grant\n"); + e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); + return -E1000_ERR_EEPROM; + } + } + } + + /* Setup EEPROM for Read/Write */ + + if (eeprom->type == e1000_eeprom_microwire) { + /* Clear SK and DI */ + eecd &= ~(E1000_EECD_DI | E1000_EECD_SK); + ew32(EECD, eecd); + + /* Set CS */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + } else if (eeprom->type == e1000_eeprom_spi) { + /* Clear SK and CS */ + eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); + ew32(EECD, eecd); + udelay(1); + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Returns EEPROM to a "standby" state + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_standby_eeprom(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + + eecd = er32(EECD); + + if (eeprom->type == e1000_eeprom_microwire) { + eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Clock high */ + eecd |= E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Select EEPROM */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Clock low */ + eecd &= ~E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + } else if (eeprom->type == e1000_eeprom_spi) { + /* Toggle CS to flush commands */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + eecd &= ~E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + } +} + +/****************************************************************************** + * Terminates a command by inverting the EEPROM's chip select pin + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_release_eeprom(struct e1000_hw *hw) +{ + u32 eecd; + + DEBUGFUNC("e1000_release_eeprom"); + + eecd = er32(EECD); + + if (hw->eeprom.type == e1000_eeprom_spi) { + eecd |= E1000_EECD_CS; /* Pull CS high */ + eecd &= ~E1000_EECD_SK; /* Lower SCK */ + + ew32(EECD, eecd); + + udelay(hw->eeprom.delay_usec); + } else if (hw->eeprom.type == e1000_eeprom_microwire) { + /* cleanup eeprom */ + + /* CS on Microwire is active-high */ + eecd &= ~(E1000_EECD_CS | E1000_EECD_DI); + + ew32(EECD, eecd); + + /* Rising edge of clock */ + eecd |= E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); + + /* Falling edge of clock */ + eecd &= ~E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); + } + + /* Stop requesting EEPROM access */ + if (hw->mac_type > e1000_82544) { + eecd &= ~E1000_EECD_REQ; + ew32(EECD, eecd); + } + + e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); +} + +/****************************************************************************** + * Reads a 16 bit word from the EEPROM. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw) +{ + u16 retry_count = 0; + u8 spi_stat_reg; + + DEBUGFUNC("e1000_spi_eeprom_ready"); + + /* Read "Status Register" repeatedly until the LSB is cleared. The + * EEPROM will signal that the command has been completed by clearing + * bit 0 of the internal status register. If it's not cleared within + * 5 milliseconds, then error out. + */ + retry_count = 0; + do { + e1000_shift_out_ee_bits(hw, EEPROM_RDSR_OPCODE_SPI, + hw->eeprom.opcode_bits); + spi_stat_reg = (u8)e1000_shift_in_ee_bits(hw, 8); + if (!(spi_stat_reg & EEPROM_STATUS_RDY_SPI)) + break; + + udelay(5); + retry_count += 5; + + e1000_standby_eeprom(hw); + } while (retry_count < EEPROM_MAX_RETRY_SPI); + + /* ATMEL SPI write time could vary from 0-20mSec on 3.3V devices (and + * only 0-5mSec on 5V devices) + */ + if (retry_count >= EEPROM_MAX_RETRY_SPI) { + DEBUGOUT("SPI EEPROM Status error\n"); + return -E1000_ERR_EEPROM; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Reads a 16 bit word from the EEPROM. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +s32 e1000_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + s32 ret; + spin_lock(&e1000_eeprom_lock); + ret = e1000_do_read_eeprom(hw, offset, words, data); + spin_unlock(&e1000_eeprom_lock); + return ret; +} + +static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 i = 0; + + DEBUGFUNC("e1000_read_eeprom"); + + /* If eeprom is not yet detected, do so now */ + if (eeprom->word_size == 0) + e1000_init_eeprom_params(hw); + + /* A check for invalid values: offset too large, too many words, and not + * enough words. + */ + if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || + (words == 0)) { + DEBUGOUT2("\"words\" parameter out of bounds. Words = %d, size = %d\n", offset, eeprom->word_size); + return -E1000_ERR_EEPROM; + } + + /* EEPROM's that don't use EERD to read require us to bit-bang the SPI + * directly. In this case, we need to acquire the EEPROM so that + * FW or other port software does not interrupt. + */ + if (e1000_is_onboard_nvm_eeprom(hw) && !hw->eeprom.use_eerd) { + /* Prepare the EEPROM for bit-bang reading */ + if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + } + + /* Eerd register EEPROM access requires no eeprom aquire/release */ + if (eeprom->use_eerd) + return e1000_read_eeprom_eerd(hw, offset, words, data); + + /* ICH EEPROM access is done via the ICH flash controller */ + if (eeprom->type == e1000_eeprom_ich8) + return e1000_read_eeprom_ich8(hw, offset, words, data); + + /* Set up the SPI or Microwire EEPROM for bit-bang reading. We have + * acquired the EEPROM at this point, so any returns should relase it */ + if (eeprom->type == e1000_eeprom_spi) { + u16 word_in; + u8 read_opcode = EEPROM_READ_OPCODE_SPI; + + if (e1000_spi_eeprom_ready(hw)) { + e1000_release_eeprom(hw); + return -E1000_ERR_EEPROM; + } + + e1000_standby_eeprom(hw); + + /* Some SPI eeproms use the 8th address bit embedded in the opcode */ + if ((eeprom->address_bits == 8) && (offset >= 128)) + read_opcode |= EEPROM_A8_OPCODE_SPI; + + /* Send the READ command (opcode + addr) */ + e1000_shift_out_ee_bits(hw, read_opcode, eeprom->opcode_bits); + e1000_shift_out_ee_bits(hw, (u16)(offset*2), eeprom->address_bits); + + /* Read the data. The address of the eeprom internally increments with + * each byte (spi) being read, saving on the overhead of eeprom setup + * and tear-down. The address counter will roll over if reading beyond + * the size of the eeprom, thus allowing the entire memory to be read + * starting from any offset. */ + for (i = 0; i < words; i++) { + word_in = e1000_shift_in_ee_bits(hw, 16); + data[i] = (word_in >> 8) | (word_in << 8); + } + } else if (eeprom->type == e1000_eeprom_microwire) { + for (i = 0; i < words; i++) { + /* Send the READ command (opcode + addr) */ + e1000_shift_out_ee_bits(hw, EEPROM_READ_OPCODE_MICROWIRE, + eeprom->opcode_bits); + e1000_shift_out_ee_bits(hw, (u16)(offset + i), + eeprom->address_bits); + + /* Read the data. For microwire, each word requires the overhead + * of eeprom setup and tear-down. */ + data[i] = e1000_shift_in_ee_bits(hw, 16); + e1000_standby_eeprom(hw); + } + } + + /* End this read operation */ + e1000_release_eeprom(hw); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Reads a 16 bit word from the EEPROM using the EERD register. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +static s32 e1000_read_eeprom_eerd(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + u32 i, eerd = 0; + s32 error = 0; + + for (i = 0; i < words; i++) { + eerd = ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) + + E1000_EEPROM_RW_REG_START; + + ew32(EERD, eerd); + error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_READ); + + if (error) { + break; + } + data[i] = (er32(EERD) >> E1000_EEPROM_RW_REG_DATA); + + } + + return error; +} + +/****************************************************************************** + * Writes a 16 bit word from the EEPROM using the EEWR register. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +static s32 e1000_write_eeprom_eewr(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + u32 register_value = 0; + u32 i = 0; + s32 error = 0; + + if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) + return -E1000_ERR_SWFW_SYNC; + + for (i = 0; i < words; i++) { + register_value = (data[i] << E1000_EEPROM_RW_REG_DATA) | + ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) | + E1000_EEPROM_RW_REG_START; + + error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); + if (error) { + break; + } + + ew32(EEWR, register_value); + + error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); + + if (error) { + break; + } + } + + e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); + return error; +} + +/****************************************************************************** + * Polls the status bit (bit 1) of the EERD to determine when the read is done. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd) +{ + u32 attempts = 100000; + u32 i, reg = 0; + s32 done = E1000_ERR_EEPROM; + + for (i = 0; i < attempts; i++) { + if (eerd == E1000_EEPROM_POLL_READ) + reg = er32(EERD); + else + reg = er32(EEWR); + + if (reg & E1000_EEPROM_RW_REG_DONE) { + done = E1000_SUCCESS; + break; + } + udelay(5); + } + + return done; +} + +/*************************************************************************** +* Description: Determines if the onboard NVM is FLASH or EEPROM. +* +* hw - Struct containing variables accessed by shared code +****************************************************************************/ +static bool e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw) +{ + u32 eecd = 0; + + DEBUGFUNC("e1000_is_onboard_nvm_eeprom"); + + if (hw->mac_type == e1000_ich8lan) + return false; + + if (hw->mac_type == e1000_82573) { + eecd = er32(EECD); + + /* Isolate bits 15 & 16 */ + eecd = ((eecd >> 15) & 0x03); + + /* If both bits are set, device is Flash type */ + if (eecd == 0x03) { + return false; + } + } + return true; +} + +/****************************************************************************** + * Verifies that the EEPROM has a valid checksum + * + * hw - Struct containing variables accessed by shared code + * + * Reads the first 64 16 bit words of the EEPROM and sums the values read. + * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is + * valid. + *****************************************************************************/ +s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw) +{ + u16 checksum = 0; + u16 i, eeprom_data; + + DEBUGFUNC("e1000_validate_eeprom_checksum"); + + if ((hw->mac_type == e1000_82573) && !e1000_is_onboard_nvm_eeprom(hw)) { + /* Check bit 4 of word 10h. If it is 0, firmware is done updating + * 10h-12h. Checksum may need to be fixed. */ + e1000_read_eeprom(hw, 0x10, 1, &eeprom_data); + if ((eeprom_data & 0x10) == 0) { + /* Read 0x23 and check bit 15. This bit is a 1 when the checksum + * has already been fixed. If the checksum is still wrong and this + * bit is a 1, we need to return bad checksum. Otherwise, we need + * to set this bit to a 1 and update the checksum. */ + e1000_read_eeprom(hw, 0x23, 1, &eeprom_data); + if ((eeprom_data & 0x8000) == 0) { + eeprom_data |= 0x8000; + e1000_write_eeprom(hw, 0x23, 1, &eeprom_data); + e1000_update_eeprom_checksum(hw); + } + } + } + + if (hw->mac_type == e1000_ich8lan) { + /* Drivers must allocate the shadow ram structure for the + * EEPROM checksum to be updated. Otherwise, this bit as well + * as the checksum must both be set correctly for this + * validation to pass. + */ + e1000_read_eeprom(hw, 0x19, 1, &eeprom_data); + if ((eeprom_data & 0x40) == 0) { + eeprom_data |= 0x40; + e1000_write_eeprom(hw, 0x19, 1, &eeprom_data); + e1000_update_eeprom_checksum(hw); + } + } + + for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { + if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + checksum += eeprom_data; + } + + if (checksum == (u16)EEPROM_SUM) + return E1000_SUCCESS; + else { + DEBUGOUT("EEPROM Checksum Invalid\n"); + return -E1000_ERR_EEPROM; + } +} + +/****************************************************************************** + * Calculates the EEPROM checksum and writes it to the EEPROM + * + * hw - Struct containing variables accessed by shared code + * + * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA. + * Writes the difference to word offset 63 of the EEPROM. + *****************************************************************************/ +s32 e1000_update_eeprom_checksum(struct e1000_hw *hw) +{ + u32 ctrl_ext; + u16 checksum = 0; + u16 i, eeprom_data; + + DEBUGFUNC("e1000_update_eeprom_checksum"); + + for (i = 0; i < EEPROM_CHECKSUM_REG; i++) { + if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + checksum += eeprom_data; + } + checksum = (u16)EEPROM_SUM - checksum; + if (e1000_write_eeprom(hw, EEPROM_CHECKSUM_REG, 1, &checksum) < 0) { + DEBUGOUT("EEPROM Write Error\n"); + return -E1000_ERR_EEPROM; + } else if (hw->eeprom.type == e1000_eeprom_flash) { + e1000_commit_shadow_ram(hw); + } else if (hw->eeprom.type == e1000_eeprom_ich8) { + e1000_commit_shadow_ram(hw); + /* Reload the EEPROM, or else modifications will not appear + * until after next adapter reset. */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_EE_RST; + ew32(CTRL_EXT, ctrl_ext); + msleep(10); + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Parent function for writing words to the different EEPROM types. + * + * hw - Struct containing variables accessed by shared code + * offset - offset within the EEPROM to be written to + * words - number of words to write + * data - 16 bit word to be written to the EEPROM + * + * If e1000_update_eeprom_checksum is not called after this function, the + * EEPROM will most likely contain an invalid checksum. + *****************************************************************************/ +s32 e1000_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + s32 ret; + spin_lock(&e1000_eeprom_lock); + ret = e1000_do_write_eeprom(hw, offset, words, data); + spin_unlock(&e1000_eeprom_lock); + return ret; +} + + +static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + s32 status = 0; + + DEBUGFUNC("e1000_write_eeprom"); + + /* If eeprom is not yet detected, do so now */ + if (eeprom->word_size == 0) + e1000_init_eeprom_params(hw); + + /* A check for invalid values: offset too large, too many words, and not + * enough words. + */ + if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || + (words == 0)) { + DEBUGOUT("\"words\" parameter out of bounds\n"); + return -E1000_ERR_EEPROM; + } + + /* 82573 writes only through eewr */ + if (eeprom->use_eewr) + return e1000_write_eeprom_eewr(hw, offset, words, data); + + if (eeprom->type == e1000_eeprom_ich8) + return e1000_write_eeprom_ich8(hw, offset, words, data); + + /* Prepare the EEPROM for writing */ + if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + + if (eeprom->type == e1000_eeprom_microwire) { + status = e1000_write_eeprom_microwire(hw, offset, words, data); + } else { + status = e1000_write_eeprom_spi(hw, offset, words, data); + msleep(10); + } + + /* Done with writing */ + e1000_release_eeprom(hw); + + return status; +} + +/****************************************************************************** + * Writes a 16 bit word to a given offset in an SPI EEPROM. + * + * hw - Struct containing variables accessed by shared code + * offset - offset within the EEPROM to be written to + * words - number of words to write + * data - pointer to array of 8 bit words to be written to the EEPROM + * + *****************************************************************************/ +static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u16 widx = 0; + + DEBUGFUNC("e1000_write_eeprom_spi"); + + while (widx < words) { + u8 write_opcode = EEPROM_WRITE_OPCODE_SPI; + + if (e1000_spi_eeprom_ready(hw)) return -E1000_ERR_EEPROM; + + e1000_standby_eeprom(hw); + + /* Send the WRITE ENABLE command (8 bit opcode ) */ + e1000_shift_out_ee_bits(hw, EEPROM_WREN_OPCODE_SPI, + eeprom->opcode_bits); + + e1000_standby_eeprom(hw); + + /* Some SPI eeproms use the 8th address bit embedded in the opcode */ + if ((eeprom->address_bits == 8) && (offset >= 128)) + write_opcode |= EEPROM_A8_OPCODE_SPI; + + /* Send the Write command (8-bit opcode + addr) */ + e1000_shift_out_ee_bits(hw, write_opcode, eeprom->opcode_bits); + + e1000_shift_out_ee_bits(hw, (u16)((offset + widx)*2), + eeprom->address_bits); + + /* Send the data */ + + /* Loop to allow for up to whole page write (32 bytes) of eeprom */ + while (widx < words) { + u16 word_out = data[widx]; + word_out = (word_out >> 8) | (word_out << 8); + e1000_shift_out_ee_bits(hw, word_out, 16); + widx++; + + /* Some larger eeprom sizes are capable of a 32-byte PAGE WRITE + * operation, while the smaller eeproms are capable of an 8-byte + * PAGE WRITE operation. Break the inner loop to pass new address + */ + if ((((offset + widx)*2) % eeprom->page_size) == 0) { + e1000_standby_eeprom(hw); + break; + } + } + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Writes a 16 bit word to a given offset in a Microwire EEPROM. + * + * hw - Struct containing variables accessed by shared code + * offset - offset within the EEPROM to be written to + * words - number of words to write + * data - pointer to array of 16 bit words to be written to the EEPROM + * + *****************************************************************************/ +static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + u16 words_written = 0; + u16 i = 0; + + DEBUGFUNC("e1000_write_eeprom_microwire"); + + /* Send the write enable command to the EEPROM (3-bit opcode plus + * 6/8-bit dummy address beginning with 11). It's less work to include + * the 11 of the dummy address as part of the opcode than it is to shift + * it over the correct number of bits for the address. This puts the + * EEPROM into write/erase mode. + */ + e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE_MICROWIRE, + (u16)(eeprom->opcode_bits + 2)); + + e1000_shift_out_ee_bits(hw, 0, (u16)(eeprom->address_bits - 2)); + + /* Prepare the EEPROM */ + e1000_standby_eeprom(hw); + + while (words_written < words) { + /* Send the Write command (3-bit opcode + addr) */ + e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE_MICROWIRE, + eeprom->opcode_bits); + + e1000_shift_out_ee_bits(hw, (u16)(offset + words_written), + eeprom->address_bits); + + /* Send the data */ + e1000_shift_out_ee_bits(hw, data[words_written], 16); + + /* Toggle the CS line. This in effect tells the EEPROM to execute + * the previous command. + */ + e1000_standby_eeprom(hw); + + /* Read DO repeatedly until it is high (equal to '1'). The EEPROM will + * signal that the command has been completed by raising the DO signal. + * If DO does not go high in 10 milliseconds, then error out. + */ + for (i = 0; i < 200; i++) { + eecd = er32(EECD); + if (eecd & E1000_EECD_DO) break; + udelay(50); + } + if (i == 200) { + DEBUGOUT("EEPROM Write did not complete\n"); + return -E1000_ERR_EEPROM; + } + + /* Recover from write */ + e1000_standby_eeprom(hw); + + words_written++; + } + + /* Send the write disable command to the EEPROM (3-bit opcode plus + * 6/8-bit dummy address beginning with 10). It's less work to include + * the 10 of the dummy address as part of the opcode than it is to shift + * it over the correct number of bits for the address. This takes the + * EEPROM out of write/erase mode. + */ + e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE_MICROWIRE, + (u16)(eeprom->opcode_bits + 2)); + + e1000_shift_out_ee_bits(hw, 0, (u16)(eeprom->address_bits - 2)); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Flushes the cached eeprom to NVM. This is done by saving the modified values + * in the eeprom cache and the non modified values in the currently active bank + * to the new bank. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +static s32 e1000_commit_shadow_ram(struct e1000_hw *hw) +{ + u32 attempts = 100000; + u32 eecd = 0; + u32 flop = 0; + u32 i = 0; + s32 error = E1000_SUCCESS; + u32 old_bank_offset = 0; + u32 new_bank_offset = 0; + u8 low_byte = 0; + u8 high_byte = 0; + bool sector_write_failed = false; + + if (hw->mac_type == e1000_82573) { + /* The flop register will be used to determine if flash type is STM */ + flop = er32(FLOP); + for (i=0; i < attempts; i++) { + eecd = er32(EECD); + if ((eecd & E1000_EECD_FLUPD) == 0) { + break; + } + udelay(5); + } + + if (i == attempts) { + return -E1000_ERR_EEPROM; + } + + /* If STM opcode located in bits 15:8 of flop, reset firmware */ + if ((flop & 0xFF00) == E1000_STM_OPCODE) { + ew32(HICR, E1000_HICR_FW_RESET); + } + + /* Perform the flash update */ + ew32(EECD, eecd | E1000_EECD_FLUPD); + + for (i=0; i < attempts; i++) { + eecd = er32(EECD); + if ((eecd & E1000_EECD_FLUPD) == 0) { + break; + } + udelay(5); + } + + if (i == attempts) { + return -E1000_ERR_EEPROM; + } + } + + if (hw->mac_type == e1000_ich8lan && hw->eeprom_shadow_ram != NULL) { + /* We're writing to the opposite bank so if we're on bank 1, + * write to bank 0 etc. We also need to erase the segment that + * is going to be written */ + if (!(er32(EECD) & E1000_EECD_SEC1VAL)) { + new_bank_offset = hw->flash_bank_size * 2; + old_bank_offset = 0; + e1000_erase_ich8_4k_segment(hw, 1); + } else { + old_bank_offset = hw->flash_bank_size * 2; + new_bank_offset = 0; + e1000_erase_ich8_4k_segment(hw, 0); + } + + sector_write_failed = false; + /* Loop for every byte in the shadow RAM, + * which is in units of words. */ + for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { + /* Determine whether to write the value stored + * in the other NVM bank or a modified value stored + * in the shadow RAM */ + if (hw->eeprom_shadow_ram[i].modified) { + low_byte = (u8)hw->eeprom_shadow_ram[i].eeprom_word; + udelay(100); + error = e1000_verify_write_ich8_byte(hw, + (i << 1) + new_bank_offset, low_byte); + + if (error != E1000_SUCCESS) + sector_write_failed = true; + else { + high_byte = + (u8)(hw->eeprom_shadow_ram[i].eeprom_word >> 8); + udelay(100); + } + } else { + e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset, + &low_byte); + udelay(100); + error = e1000_verify_write_ich8_byte(hw, + (i << 1) + new_bank_offset, low_byte); + + if (error != E1000_SUCCESS) + sector_write_failed = true; + else { + e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset + 1, + &high_byte); + udelay(100); + } + } + + /* If the write of the low byte was successful, go ahead and + * write the high byte while checking to make sure that if it + * is the signature byte, then it is handled properly */ + if (!sector_write_failed) { + /* If the word is 0x13, then make sure the signature bits + * (15:14) are 11b until the commit has completed. + * This will allow us to write 10b which indicates the + * signature is valid. We want to do this after the write + * has completed so that we don't mark the segment valid + * while the write is still in progress */ + if (i == E1000_ICH_NVM_SIG_WORD) + high_byte = E1000_ICH_NVM_SIG_MASK | high_byte; + + error = e1000_verify_write_ich8_byte(hw, + (i << 1) + new_bank_offset + 1, high_byte); + if (error != E1000_SUCCESS) + sector_write_failed = true; + + } else { + /* If the write failed then break from the loop and + * return an error */ + break; + } + } + + /* Don't bother writing the segment valid bits if sector + * programming failed. */ + if (!sector_write_failed) { + /* Finally validate the new segment by setting bit 15:14 + * to 10b in word 0x13 , this can be done without an + * erase as well since these bits are 11 to start with + * and we need to change bit 14 to 0b */ + e1000_read_ich8_byte(hw, + E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, + &high_byte); + high_byte &= 0xBF; + error = e1000_verify_write_ich8_byte(hw, + E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, high_byte); + /* And invalidate the previously valid segment by setting + * its signature word (0x13) high_byte to 0b. This can be + * done without an erase because flash erase sets all bits + * to 1's. We can write 1's to 0's without an erase */ + if (error == E1000_SUCCESS) { + error = e1000_verify_write_ich8_byte(hw, + E1000_ICH_NVM_SIG_WORD * 2 + 1 + old_bank_offset, 0); + } + + /* Clear the now not used entry in the cache */ + for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { + hw->eeprom_shadow_ram[i].modified = false; + hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; + } + } + } + + return error; +} + +/****************************************************************************** + * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the + * second function of dual function devices + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_read_mac_addr(struct e1000_hw *hw) +{ + u16 offset; + u16 eeprom_data, i; + + DEBUGFUNC("e1000_read_mac_addr"); + + for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) { + offset = i >> 1; + if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + hw->perm_mac_addr[i] = (u8)(eeprom_data & 0x00FF); + hw->perm_mac_addr[i+1] = (u8)(eeprom_data >> 8); + } + + switch (hw->mac_type) { + default: + break; + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82571: + case e1000_80003es2lan: + if (er32(STATUS) & E1000_STATUS_FUNC_1) + hw->perm_mac_addr[5] ^= 0x01; + break; + } + + for (i = 0; i < NODE_ADDRESS_SIZE; i++) + hw->mac_addr[i] = hw->perm_mac_addr[i]; + return E1000_SUCCESS; +} + +/****************************************************************************** + * Initializes receive address filters. + * + * hw - Struct containing variables accessed by shared code + * + * Places the MAC address in receive address register 0 and clears the rest + * of the receive addresss registers. Clears the multicast table. Assumes + * the receiver is in reset when the routine is called. + *****************************************************************************/ +static void e1000_init_rx_addrs(struct e1000_hw *hw) +{ + u32 i; + u32 rar_num; + + DEBUGFUNC("e1000_init_rx_addrs"); + + /* Setup the receive address. */ + DEBUGOUT("Programming MAC Address into RAR[0]\n"); + + e1000_rar_set(hw, hw->mac_addr, 0); + + rar_num = E1000_RAR_ENTRIES; + + /* Reserve a spot for the Locally Administered Address to work around + * an 82571 issue in which a reset on one port will reload the MAC on + * the other port. */ + if ((hw->mac_type == e1000_82571) && (hw->laa_is_present)) + rar_num -= 1; + if (hw->mac_type == e1000_ich8lan) + rar_num = E1000_RAR_ENTRIES_ICH8LAN; + + /* Zero out the other 15 receive addresses. */ + DEBUGOUT("Clearing RAR[1-15]\n"); + for (i = 1; i < rar_num; i++) { + E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0); + E1000_WRITE_FLUSH(); + } +} + +/****************************************************************************** + * Hashes an address to determine its location in the multicast table + * + * hw - Struct containing variables accessed by shared code + * mc_addr - the multicast address to hash + *****************************************************************************/ +u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr) +{ + u32 hash_value = 0; + + /* The portion of the address that is used for the hash table is + * determined by the mc_filter_type setting. + */ + switch (hw->mc_filter_type) { + /* [0] [1] [2] [3] [4] [5] + * 01 AA 00 12 34 56 + * LSB MSB + */ + case 0: + if (hw->mac_type == e1000_ich8lan) { + /* [47:38] i.e. 0x158 for above example address */ + hash_value = ((mc_addr[4] >> 6) | (((u16)mc_addr[5]) << 2)); + } else { + /* [47:36] i.e. 0x563 for above example address */ + hash_value = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4)); + } + break; + case 1: + if (hw->mac_type == e1000_ich8lan) { + /* [46:37] i.e. 0x2B1 for above example address */ + hash_value = ((mc_addr[4] >> 5) | (((u16)mc_addr[5]) << 3)); + } else { + /* [46:35] i.e. 0xAC6 for above example address */ + hash_value = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5)); + } + break; + case 2: + if (hw->mac_type == e1000_ich8lan) { + /*[45:36] i.e. 0x163 for above example address */ + hash_value = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4)); + } else { + /* [45:34] i.e. 0x5D8 for above example address */ + hash_value = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6)); + } + break; + case 3: + if (hw->mac_type == e1000_ich8lan) { + /* [43:34] i.e. 0x18D for above example address */ + hash_value = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6)); + } else { + /* [43:32] i.e. 0x634 for above example address */ + hash_value = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8)); + } + break; + } + + hash_value &= 0xFFF; + if (hw->mac_type == e1000_ich8lan) + hash_value &= 0x3FF; + + return hash_value; +} + +/****************************************************************************** + * Sets the bit in the multicast table corresponding to the hash value. + * + * hw - Struct containing variables accessed by shared code + * hash_value - Multicast address hash value + *****************************************************************************/ +void e1000_mta_set(struct e1000_hw *hw, u32 hash_value) +{ + u32 hash_bit, hash_reg; + u32 mta; + u32 temp; + + /* The MTA is a register array of 128 32-bit registers. + * It is treated like an array of 4096 bits. We want to set + * bit BitArray[hash_value]. So we figure out what register + * the bit is in, read it, OR in the new bit, then write + * back the new value. The register is determined by the + * upper 7 bits of the hash value and the bit within that + * register are determined by the lower 5 bits of the value. + */ + hash_reg = (hash_value >> 5) & 0x7F; + if (hw->mac_type == e1000_ich8lan) + hash_reg &= 0x1F; + + hash_bit = hash_value & 0x1F; + + mta = E1000_READ_REG_ARRAY(hw, MTA, hash_reg); + + mta |= (1 << hash_bit); + + /* If we are on an 82544 and we are trying to write an odd offset + * in the MTA, save off the previous entry before writing and + * restore the old value after writing. + */ + if ((hw->mac_type == e1000_82544) && ((hash_reg & 0x1) == 1)) { + temp = E1000_READ_REG_ARRAY(hw, MTA, (hash_reg - 1)); + E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, MTA, (hash_reg - 1), temp); + E1000_WRITE_FLUSH(); + } else { + E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); + E1000_WRITE_FLUSH(); + } +} + +/****************************************************************************** + * Puts an ethernet address into a receive address register. + * + * hw - Struct containing variables accessed by shared code + * addr - Address to put into receive address register + * index - Receive address register to write + *****************************************************************************/ +void e1000_rar_set(struct e1000_hw *hw, u8 *addr, u32 index) +{ + u32 rar_low, rar_high; + + /* HW expects these in little endian so we reverse the byte order + * from network order (big endian) to little endian + */ + rar_low = ((u32)addr[0] | ((u32)addr[1] << 8) | + ((u32)addr[2] << 16) | ((u32)addr[3] << 24)); + rar_high = ((u32)addr[4] | ((u32)addr[5] << 8)); + + /* Disable Rx and flush all Rx frames before enabling RSS to avoid Rx + * unit hang. + * + * Description: + * If there are any Rx frames queued up or otherwise present in the HW + * before RSS is enabled, and then we enable RSS, the HW Rx unit will + * hang. To work around this issue, we have to disable receives and + * flush out all Rx frames before we enable RSS. To do so, we modify we + * redirect all Rx traffic to manageability and then reset the HW. + * This flushes away Rx frames, and (since the redirections to + * manageability persists across resets) keeps new ones from coming in + * while we work. Then, we clear the Address Valid AV bit for all MAC + * addresses and undo the re-direction to manageability. + * Now, frames are coming in again, but the MAC won't accept them, so + * far so good. We now proceed to initialize RSS (if necessary) and + * configure the Rx unit. Last, we re-enable the AV bits and continue + * on our merry way. + */ + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + if (hw->leave_av_bit_off) + break; + default: + /* Indicate to hardware the Address is Valid. */ + rar_high |= E1000_RAH_AV; + break; + } + + E1000_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high); + E1000_WRITE_FLUSH(); +} + +/****************************************************************************** + * Writes a value to the specified offset in the VLAN filter table. + * + * hw - Struct containing variables accessed by shared code + * offset - Offset in VLAN filer table to write + * value - Value to write into VLAN filter table + *****************************************************************************/ +void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value) +{ + u32 temp; + + if (hw->mac_type == e1000_ich8lan) + return; + + if ((hw->mac_type == e1000_82544) && ((offset & 0x1) == 1)) { + temp = E1000_READ_REG_ARRAY(hw, VFTA, (offset - 1)); + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, VFTA, (offset - 1), temp); + E1000_WRITE_FLUSH(); + } else { + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); + E1000_WRITE_FLUSH(); + } +} + +/****************************************************************************** + * Clears the VLAN filer table + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_clear_vfta(struct e1000_hw *hw) +{ + u32 offset; + u32 vfta_value = 0; + u32 vfta_offset = 0; + u32 vfta_bit_in_reg = 0; + + if (hw->mac_type == e1000_ich8lan) + return; + + if (hw->mac_type == e1000_82573) { + if (hw->mng_cookie.vlan_id != 0) { + /* The VFTA is a 4096b bit-field, each identifying a single VLAN + * ID. The following operations determine which 32b entry + * (i.e. offset) into the array we want to set the VLAN ID + * (i.e. bit) of the manageability unit. */ + vfta_offset = (hw->mng_cookie.vlan_id >> + E1000_VFTA_ENTRY_SHIFT) & + E1000_VFTA_ENTRY_MASK; + vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id & + E1000_VFTA_ENTRY_BIT_SHIFT_MASK); + } + } + for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { + /* If the offset we want to clear is the same offset of the + * manageability VLAN ID, then clear all bits except that of the + * manageability unit */ + vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0; + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, vfta_value); + E1000_WRITE_FLUSH(); + } +} + +static s32 e1000_id_led_init(struct e1000_hw *hw) +{ + u32 ledctl; + const u32 ledctl_mask = 0x000000FF; + const u32 ledctl_on = E1000_LEDCTL_MODE_LED_ON; + const u32 ledctl_off = E1000_LEDCTL_MODE_LED_OFF; + u16 eeprom_data, i, temp; + const u16 led_mask = 0x0F; + + DEBUGFUNC("e1000_id_led_init"); + + if (hw->mac_type < e1000_82540) { + /* Nothing to do */ + return E1000_SUCCESS; + } + + ledctl = er32(LEDCTL); + hw->ledctl_default = ledctl; + hw->ledctl_mode1 = hw->ledctl_default; + hw->ledctl_mode2 = hw->ledctl_default; + + if (e1000_read_eeprom(hw, EEPROM_ID_LED_SETTINGS, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + + if ((hw->mac_type == e1000_82573) && + (eeprom_data == ID_LED_RESERVED_82573)) + eeprom_data = ID_LED_DEFAULT_82573; + else if ((eeprom_data == ID_LED_RESERVED_0000) || + (eeprom_data == ID_LED_RESERVED_FFFF)) { + if (hw->mac_type == e1000_ich8lan) + eeprom_data = ID_LED_DEFAULT_ICH8LAN; + else + eeprom_data = ID_LED_DEFAULT; + } + + for (i = 0; i < 4; i++) { + temp = (eeprom_data >> (i << 2)) & led_mask; + switch (temp) { + case ID_LED_ON1_DEF2: + case ID_LED_ON1_ON2: + case ID_LED_ON1_OFF2: + hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode1 |= ledctl_on << (i << 3); + break; + case ID_LED_OFF1_DEF2: + case ID_LED_OFF1_ON2: + case ID_LED_OFF1_OFF2: + hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode1 |= ledctl_off << (i << 3); + break; + default: + /* Do nothing */ + break; + } + switch (temp) { + case ID_LED_DEF1_ON2: + case ID_LED_ON1_ON2: + case ID_LED_OFF1_ON2: + hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode2 |= ledctl_on << (i << 3); + break; + case ID_LED_DEF1_OFF2: + case ID_LED_ON1_OFF2: + case ID_LED_OFF1_OFF2: + hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode2 |= ledctl_off << (i << 3); + break; + default: + /* Do nothing */ + break; + } + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Prepares SW controlable LED for use and saves the current state of the LED. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_setup_led(struct e1000_hw *hw) +{ + u32 ledctl; + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_setup_led"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* No setup necessary */ + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + /* Turn off PHY Smart Power Down (if enabled) */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, + &hw->phy_spd_default); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + (u16)(hw->phy_spd_default & + ~IGP01E1000_GMII_SPD)); + if (ret_val) + return ret_val; + /* Fall Through */ + default: + if (hw->media_type == e1000_media_type_fiber) { + ledctl = er32(LEDCTL); + /* Save current LEDCTL settings */ + hw->ledctl_default = ledctl; + /* Turn off LED0 */ + ledctl &= ~(E1000_LEDCTL_LED0_IVRT | + E1000_LEDCTL_LED0_BLINK | + E1000_LEDCTL_LED0_MODE_MASK); + ledctl |= (E1000_LEDCTL_MODE_LED_OFF << + E1000_LEDCTL_LED0_MODE_SHIFT); + ew32(LEDCTL, ledctl); + } else if (hw->media_type == e1000_media_type_copper) + ew32(LEDCTL, hw->ledctl_mode1); + break; + } + + return E1000_SUCCESS; +} + + +/****************************************************************************** + * Used on 82571 and later Si that has LED blink bits. + * Callers must use their own timer and should have already called + * e1000_id_led_init() + * Call e1000_cleanup led() to stop blinking + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_blink_led_start(struct e1000_hw *hw) +{ + s16 i; + u32 ledctl_blink = 0; + + DEBUGFUNC("e1000_id_led_blink_on"); + + if (hw->mac_type < e1000_82571) { + /* Nothing to do */ + return E1000_SUCCESS; + } + if (hw->media_type == e1000_media_type_fiber) { + /* always blink LED0 for PCI-E fiber */ + ledctl_blink = E1000_LEDCTL_LED0_BLINK | + (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT); + } else { + /* set the blink bit for each LED that's "on" (0x0E) in ledctl_mode2 */ + ledctl_blink = hw->ledctl_mode2; + for (i=0; i < 4; i++) + if (((hw->ledctl_mode2 >> (i * 8)) & 0xFF) == + E1000_LEDCTL_MODE_LED_ON) + ledctl_blink |= (E1000_LEDCTL_LED0_BLINK << (i * 8)); + } + + ew32(LEDCTL, ledctl_blink); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Restores the saved state of the SW controlable LED. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_cleanup_led(struct e1000_hw *hw) +{ + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_cleanup_led"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* No cleanup necessary */ + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + /* Turn on PHY Smart Power Down (if previously enabled) */ + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + hw->phy_spd_default); + if (ret_val) + return ret_val; + /* Fall Through */ + default: + if (hw->phy_type == e1000_phy_ife) { + e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0); + break; + } + /* Restore LEDCTL settings */ + ew32(LEDCTL, hw->ledctl_default); + break; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Turns on the software controllable LED + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_led_on(struct e1000_hw *hw) +{ + u32 ctrl = er32(CTRL); + + DEBUGFUNC("e1000_led_on"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + /* Set SW Defineable Pin 0 to turn on the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + break; + case e1000_82544: + if (hw->media_type == e1000_media_type_fiber) { + /* Set SW Defineable Pin 0 to turn on the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else { + /* Clear SW Defineable Pin 0 to turn on the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } + break; + default: + if (hw->media_type == e1000_media_type_fiber) { + /* Clear SW Defineable Pin 0 to turn on the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else if (hw->phy_type == e1000_phy_ife) { + e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, + (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON)); + } else if (hw->media_type == e1000_media_type_copper) { + ew32(LEDCTL, hw->ledctl_mode2); + return E1000_SUCCESS; + } + break; + } + + ew32(CTRL, ctrl); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Turns off the software controllable LED + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_led_off(struct e1000_hw *hw) +{ + u32 ctrl = er32(CTRL); + + DEBUGFUNC("e1000_led_off"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + /* Clear SW Defineable Pin 0 to turn off the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + break; + case e1000_82544: + if (hw->media_type == e1000_media_type_fiber) { + /* Clear SW Defineable Pin 0 to turn off the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else { + /* Set SW Defineable Pin 0 to turn off the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } + break; + default: + if (hw->media_type == e1000_media_type_fiber) { + /* Set SW Defineable Pin 0 to turn off the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else if (hw->phy_type == e1000_phy_ife) { + e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, + (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF)); + } else if (hw->media_type == e1000_media_type_copper) { + ew32(LEDCTL, hw->ledctl_mode1); + return E1000_SUCCESS; + } + break; + } + + ew32(CTRL, ctrl); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Clears all hardware statistics counters. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_clear_hw_cntrs(struct e1000_hw *hw) +{ + volatile u32 temp; + + temp = er32(CRCERRS); + temp = er32(SYMERRS); + temp = er32(MPC); + temp = er32(SCC); + temp = er32(ECOL); + temp = er32(MCC); + temp = er32(LATECOL); + temp = er32(COLC); + temp = er32(DC); + temp = er32(SEC); + temp = er32(RLEC); + temp = er32(XONRXC); + temp = er32(XONTXC); + temp = er32(XOFFRXC); + temp = er32(XOFFTXC); + temp = er32(FCRUC); + + if (hw->mac_type != e1000_ich8lan) { + temp = er32(PRC64); + temp = er32(PRC127); + temp = er32(PRC255); + temp = er32(PRC511); + temp = er32(PRC1023); + temp = er32(PRC1522); + } + + temp = er32(GPRC); + temp = er32(BPRC); + temp = er32(MPRC); + temp = er32(GPTC); + temp = er32(GORCL); + temp = er32(GORCH); + temp = er32(GOTCL); + temp = er32(GOTCH); + temp = er32(RNBC); + temp = er32(RUC); + temp = er32(RFC); + temp = er32(ROC); + temp = er32(RJC); + temp = er32(TORL); + temp = er32(TORH); + temp = er32(TOTL); + temp = er32(TOTH); + temp = er32(TPR); + temp = er32(TPT); + + if (hw->mac_type != e1000_ich8lan) { + temp = er32(PTC64); + temp = er32(PTC127); + temp = er32(PTC255); + temp = er32(PTC511); + temp = er32(PTC1023); + temp = er32(PTC1522); + } + + temp = er32(MPTC); + temp = er32(BPTC); + + if (hw->mac_type < e1000_82543) return; + + temp = er32(ALGNERRC); + temp = er32(RXERRC); + temp = er32(TNCRS); + temp = er32(CEXTERR); + temp = er32(TSCTC); + temp = er32(TSCTFC); + + if (hw->mac_type <= e1000_82544) return; + + temp = er32(MGTPRC); + temp = er32(MGTPDC); + temp = er32(MGTPTC); + + if (hw->mac_type <= e1000_82547_rev_2) return; + + temp = er32(IAC); + temp = er32(ICRXOC); + + if (hw->mac_type == e1000_ich8lan) return; + + temp = er32(ICRXPTC); + temp = er32(ICRXATC); + temp = er32(ICTXPTC); + temp = er32(ICTXATC); + temp = er32(ICTXQEC); + temp = er32(ICTXQMTC); + temp = er32(ICRXDMTC); +} + +/****************************************************************************** + * Resets Adaptive IFS to its default state. + * + * hw - Struct containing variables accessed by shared code + * + * Call this after e1000_init_hw. You may override the IFS defaults by setting + * hw->ifs_params_forced to true. However, you must initialize hw-> + * current_ifs_val, ifs_min_val, ifs_max_val, ifs_step_size, and ifs_ratio + * before calling this function. + *****************************************************************************/ +void e1000_reset_adaptive(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_reset_adaptive"); + + if (hw->adaptive_ifs) { + if (!hw->ifs_params_forced) { + hw->current_ifs_val = 0; + hw->ifs_min_val = IFS_MIN; + hw->ifs_max_val = IFS_MAX; + hw->ifs_step_size = IFS_STEP; + hw->ifs_ratio = IFS_RATIO; + } + hw->in_ifs_mode = false; + ew32(AIT, 0); + } else { + DEBUGOUT("Not in Adaptive IFS mode!\n"); + } +} + +/****************************************************************************** + * Called during the callback/watchdog routine to update IFS value based on + * the ratio of transmits to collisions. + * + * hw - Struct containing variables accessed by shared code + * tx_packets - Number of transmits since last callback + * total_collisions - Number of collisions since last callback + *****************************************************************************/ +void e1000_update_adaptive(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_update_adaptive"); + + if (hw->adaptive_ifs) { + if ((hw->collision_delta * hw->ifs_ratio) > hw->tx_packet_delta) { + if (hw->tx_packet_delta > MIN_NUM_XMITS) { + hw->in_ifs_mode = true; + if (hw->current_ifs_val < hw->ifs_max_val) { + if (hw->current_ifs_val == 0) + hw->current_ifs_val = hw->ifs_min_val; + else + hw->current_ifs_val += hw->ifs_step_size; + ew32(AIT, hw->current_ifs_val); + } + } + } else { + if (hw->in_ifs_mode && (hw->tx_packet_delta <= MIN_NUM_XMITS)) { + hw->current_ifs_val = 0; + hw->in_ifs_mode = false; + ew32(AIT, 0); + } + } + } else { + DEBUGOUT("Not in Adaptive IFS mode!\n"); + } +} + +/****************************************************************************** + * Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT + * + * hw - Struct containing variables accessed by shared code + * frame_len - The length of the frame in question + * mac_addr - The Ethernet destination address of the frame in question + *****************************************************************************/ +void e1000_tbi_adjust_stats(struct e1000_hw *hw, struct e1000_hw_stats *stats, + u32 frame_len, u8 *mac_addr) +{ + u64 carry_bit; + + /* First adjust the frame length. */ + frame_len--; + /* We need to adjust the statistics counters, since the hardware + * counters overcount this packet as a CRC error and undercount + * the packet as a good packet + */ + /* This packet should not be counted as a CRC error. */ + stats->crcerrs--; + /* This packet does count as a Good Packet Received. */ + stats->gprc++; + + /* Adjust the Good Octets received counters */ + carry_bit = 0x80000000 & stats->gorcl; + stats->gorcl += frame_len; + /* If the high bit of Gorcl (the low 32 bits of the Good Octets + * Received Count) was one before the addition, + * AND it is zero after, then we lost the carry out, + * need to add one to Gorch (Good Octets Received Count High). + * This could be simplified if all environments supported + * 64-bit integers. + */ + if (carry_bit && ((stats->gorcl & 0x80000000) == 0)) + stats->gorch++; + /* Is this a broadcast or multicast? Check broadcast first, + * since the test for a multicast frame will test positive on + * a broadcast frame. + */ + if ((mac_addr[0] == (u8)0xff) && (mac_addr[1] == (u8)0xff)) + /* Broadcast packet */ + stats->bprc++; + else if (*mac_addr & 0x01) + /* Multicast packet */ + stats->mprc++; + + if (frame_len == hw->max_frame_size) { + /* In this case, the hardware has overcounted the number of + * oversize frames. + */ + if (stats->roc > 0) + stats->roc--; + } + + /* Adjust the bin counters when the extra byte put the frame in the + * wrong bin. Remember that the frame_len was adjusted above. + */ + if (frame_len == 64) { + stats->prc64++; + stats->prc127--; + } else if (frame_len == 127) { + stats->prc127++; + stats->prc255--; + } else if (frame_len == 255) { + stats->prc255++; + stats->prc511--; + } else if (frame_len == 511) { + stats->prc511++; + stats->prc1023--; + } else if (frame_len == 1023) { + stats->prc1023++; + stats->prc1522--; + } else if (frame_len == 1522) { + stats->prc1522++; + } +} + +/****************************************************************************** + * Gets the current PCI bus type, speed, and width of the hardware + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +void e1000_get_bus_info(struct e1000_hw *hw) +{ + s32 ret_val; + u16 pci_ex_link_status; + u32 status; + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + hw->bus_type = e1000_bus_type_pci; + hw->bus_speed = e1000_bus_speed_unknown; + hw->bus_width = e1000_bus_width_unknown; + break; + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + hw->bus_type = e1000_bus_type_pci_express; + hw->bus_speed = e1000_bus_speed_2500; + ret_val = e1000_read_pcie_cap_reg(hw, + PCI_EX_LINK_STATUS, + &pci_ex_link_status); + if (ret_val) + hw->bus_width = e1000_bus_width_unknown; + else + hw->bus_width = (pci_ex_link_status & PCI_EX_LINK_WIDTH_MASK) >> + PCI_EX_LINK_WIDTH_SHIFT; + break; + case e1000_ich8lan: + hw->bus_type = e1000_bus_type_pci_express; + hw->bus_speed = e1000_bus_speed_2500; + hw->bus_width = e1000_bus_width_pciex_1; + break; + default: + status = er32(STATUS); + hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ? + e1000_bus_type_pcix : e1000_bus_type_pci; + + if (hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) { + hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ? + e1000_bus_speed_66 : e1000_bus_speed_120; + } else if (hw->bus_type == e1000_bus_type_pci) { + hw->bus_speed = (status & E1000_STATUS_PCI66) ? + e1000_bus_speed_66 : e1000_bus_speed_33; + } else { + switch (status & E1000_STATUS_PCIX_SPEED) { + case E1000_STATUS_PCIX_SPEED_66: + hw->bus_speed = e1000_bus_speed_66; + break; + case E1000_STATUS_PCIX_SPEED_100: + hw->bus_speed = e1000_bus_speed_100; + break; + case E1000_STATUS_PCIX_SPEED_133: + hw->bus_speed = e1000_bus_speed_133; + break; + default: + hw->bus_speed = e1000_bus_speed_reserved; + break; + } + } + hw->bus_width = (status & E1000_STATUS_BUS64) ? + e1000_bus_width_64 : e1000_bus_width_32; + break; + } +} + +/****************************************************************************** + * Writes a value to one of the devices registers using port I/O (as opposed to + * memory mapped I/O). Only 82544 and newer devices support port I/O. + * + * hw - Struct containing variables accessed by shared code + * offset - offset to write to + * value - value to write + *****************************************************************************/ +static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value) +{ + unsigned long io_addr = hw->io_base; + unsigned long io_data = hw->io_base + 4; + + e1000_io_write(hw, io_addr, offset); + e1000_io_write(hw, io_data, value); +} + +/****************************************************************************** + * Estimates the cable length. + * + * hw - Struct containing variables accessed by shared code + * min_length - The estimated minimum length + * max_length - The estimated maximum length + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * This function always returns a ranged length (minimum & maximum). + * So for M88 phy's, this function interprets the one value returned from the + * register to the minimum and maximum range. + * For IGP phy's, the function calculates the range by the AGC registers. + *****************************************************************************/ +static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, + u16 *max_length) +{ + s32 ret_val; + u16 agc_value = 0; + u16 i, phy_data; + u16 cable_length; + + DEBUGFUNC("e1000_get_cable_length"); + + *min_length = *max_length = 0; + + /* Use old method for Phy older than IGP */ + if (hw->phy_type == e1000_phy_m88) { + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + cable_length = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >> + M88E1000_PSSR_CABLE_LENGTH_SHIFT; + + /* Convert the enum value to ranged values */ + switch (cable_length) { + case e1000_cable_length_50: + *min_length = 0; + *max_length = e1000_igp_cable_length_50; + break; + case e1000_cable_length_50_80: + *min_length = e1000_igp_cable_length_50; + *max_length = e1000_igp_cable_length_80; + break; + case e1000_cable_length_80_110: + *min_length = e1000_igp_cable_length_80; + *max_length = e1000_igp_cable_length_110; + break; + case e1000_cable_length_110_140: + *min_length = e1000_igp_cable_length_110; + *max_length = e1000_igp_cable_length_140; + break; + case e1000_cable_length_140: + *min_length = e1000_igp_cable_length_140; + *max_length = e1000_igp_cable_length_170; + break; + default: + return -E1000_ERR_PHY; + break; + } + } else if (hw->phy_type == e1000_phy_gg82563) { + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, + &phy_data); + if (ret_val) + return ret_val; + cable_length = phy_data & GG82563_DSPD_CABLE_LENGTH; + + switch (cable_length) { + case e1000_gg_cable_length_60: + *min_length = 0; + *max_length = e1000_igp_cable_length_60; + break; + case e1000_gg_cable_length_60_115: + *min_length = e1000_igp_cable_length_60; + *max_length = e1000_igp_cable_length_115; + break; + case e1000_gg_cable_length_115_150: + *min_length = e1000_igp_cable_length_115; + *max_length = e1000_igp_cable_length_150; + break; + case e1000_gg_cable_length_150: + *min_length = e1000_igp_cable_length_150; + *max_length = e1000_igp_cable_length_180; + break; + default: + return -E1000_ERR_PHY; + break; + } + } else if (hw->phy_type == e1000_phy_igp) { /* For IGP PHY */ + u16 cur_agc_value; + u16 min_agc_value = IGP01E1000_AGC_LENGTH_TABLE_SIZE; + u16 agc_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = + {IGP01E1000_PHY_AGC_A, + IGP01E1000_PHY_AGC_B, + IGP01E1000_PHY_AGC_C, + IGP01E1000_PHY_AGC_D}; + /* Read the AGC registers for all channels */ + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + + ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); + if (ret_val) + return ret_val; + + cur_agc_value = phy_data >> IGP01E1000_AGC_LENGTH_SHIFT; + + /* Value bound check. */ + if ((cur_agc_value >= IGP01E1000_AGC_LENGTH_TABLE_SIZE - 1) || + (cur_agc_value == 0)) + return -E1000_ERR_PHY; + + agc_value += cur_agc_value; + + /* Update minimal AGC value. */ + if (min_agc_value > cur_agc_value) + min_agc_value = cur_agc_value; + } + + /* Remove the minimal AGC result for length < 50m */ + if (agc_value < IGP01E1000_PHY_CHANNEL_NUM * e1000_igp_cable_length_50) { + agc_value -= min_agc_value; + + /* Get the average length of the remaining 3 channels */ + agc_value /= (IGP01E1000_PHY_CHANNEL_NUM - 1); + } else { + /* Get the average length of all the 4 channels. */ + agc_value /= IGP01E1000_PHY_CHANNEL_NUM; + } + + /* Set the range of the calculated length. */ + *min_length = ((e1000_igp_cable_length_table[agc_value] - + IGP01E1000_AGC_RANGE) > 0) ? + (e1000_igp_cable_length_table[agc_value] - + IGP01E1000_AGC_RANGE) : 0; + *max_length = e1000_igp_cable_length_table[agc_value] + + IGP01E1000_AGC_RANGE; + } else if (hw->phy_type == e1000_phy_igp_2 || + hw->phy_type == e1000_phy_igp_3) { + u16 cur_agc_index, max_agc_index = 0; + u16 min_agc_index = IGP02E1000_AGC_LENGTH_TABLE_SIZE - 1; + u16 agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] = + {IGP02E1000_PHY_AGC_A, + IGP02E1000_PHY_AGC_B, + IGP02E1000_PHY_AGC_C, + IGP02E1000_PHY_AGC_D}; + /* Read the AGC registers for all channels */ + for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) { + ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); + if (ret_val) + return ret_val; + + /* Getting bits 15:9, which represent the combination of course and + * fine gain values. The result is a number that can be put into + * the lookup table to obtain the approximate cable length. */ + cur_agc_index = (phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) & + IGP02E1000_AGC_LENGTH_MASK; + + /* Array index bound check. */ + if ((cur_agc_index >= IGP02E1000_AGC_LENGTH_TABLE_SIZE) || + (cur_agc_index == 0)) + return -E1000_ERR_PHY; + + /* Remove min & max AGC values from calculation. */ + if (e1000_igp_2_cable_length_table[min_agc_index] > + e1000_igp_2_cable_length_table[cur_agc_index]) + min_agc_index = cur_agc_index; + if (e1000_igp_2_cable_length_table[max_agc_index] < + e1000_igp_2_cable_length_table[cur_agc_index]) + max_agc_index = cur_agc_index; + + agc_value += e1000_igp_2_cable_length_table[cur_agc_index]; + } + + agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] + + e1000_igp_2_cable_length_table[max_agc_index]); + agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2); + + /* Calculate cable length with the error range of +/- 10 meters. */ + *min_length = ((agc_value - IGP02E1000_AGC_RANGE) > 0) ? + (agc_value - IGP02E1000_AGC_RANGE) : 0; + *max_length = agc_value + IGP02E1000_AGC_RANGE; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Check the cable polarity + * + * hw - Struct containing variables accessed by shared code + * polarity - output parameter : 0 - Polarity is not reversed + * 1 - Polarity is reversed. + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * For phy's older than IGP, this function simply reads the polarity bit in the + * Phy Status register. For IGP phy's, this bit is valid only if link speed is + * 10 Mbps. If the link speed is 100 Mbps there is no polarity so this bit will + * return 0. If the link speed is 1000 Mbps the polarity status is in the + * IGP01E1000_PHY_PCS_INIT_REG. + *****************************************************************************/ +static s32 e1000_check_polarity(struct e1000_hw *hw, + e1000_rev_polarity *polarity) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_polarity"); + + if ((hw->phy_type == e1000_phy_m88) || + (hw->phy_type == e1000_phy_gg82563)) { + /* return the Polarity bit in the Status register. */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + *polarity = ((phy_data & M88E1000_PSSR_REV_POLARITY) >> + M88E1000_PSSR_REV_POLARITY_SHIFT) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + + } else if (hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) { + /* Read the Status register to check the speed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + /* If speed is 1000 Mbps, must read the IGP01E1000_PHY_PCS_INIT_REG to + * find the polarity status */ + if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == + IGP01E1000_PSSR_SPEED_1000MBPS) { + + /* Read the GIG initialization PCS register (0x00B4) */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG, + &phy_data); + if (ret_val) + return ret_val; + + /* Check the polarity bits */ + *polarity = (phy_data & IGP01E1000_PHY_POLARITY_MASK) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + } else { + /* For 10 Mbps, read the polarity bit in the status register. (for + * 100 Mbps this bit is always 0) */ + *polarity = (phy_data & IGP01E1000_PSSR_POLARITY_REVERSED) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + } + } else if (hw->phy_type == e1000_phy_ife) { + ret_val = e1000_read_phy_reg(hw, IFE_PHY_EXTENDED_STATUS_CONTROL, + &phy_data); + if (ret_val) + return ret_val; + *polarity = ((phy_data & IFE_PESC_POLARITY_REVERSED) >> + IFE_PESC_POLARITY_REVERSED_SHIFT) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Check if Downshift occured + * + * hw - Struct containing variables accessed by shared code + * downshift - output parameter : 0 - No Downshift ocured. + * 1 - Downshift ocured. + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * For phy's older than IGP, this function reads the Downshift bit in the Phy + * Specific Status register. For IGP phy's, it reads the Downgrade bit in the + * Link Health register. In IGP this bit is latched high, so the driver must + * read it immediately after link is established. + *****************************************************************************/ +static s32 e1000_check_downshift(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_downshift"); + + if (hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH, + &phy_data); + if (ret_val) + return ret_val; + + hw->speed_downgraded = (phy_data & IGP01E1000_PLHR_SS_DOWNGRADE) ? 1 : 0; + } else if ((hw->phy_type == e1000_phy_m88) || + (hw->phy_type == e1000_phy_gg82563)) { + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + hw->speed_downgraded = (phy_data & M88E1000_PSSR_DOWNSHIFT) >> + M88E1000_PSSR_DOWNSHIFT_SHIFT; + } else if (hw->phy_type == e1000_phy_ife) { + /* e1000_phy_ife supports 10/100 speed only */ + hw->speed_downgraded = false; + } + + return E1000_SUCCESS; +} + +/***************************************************************************** + * + * 82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a + * gigabit link is achieved to improve link quality. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + * + ****************************************************************************/ + +static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, bool link_up) +{ + s32 ret_val; + u16 phy_data, phy_saved_data, speed, duplex, i; + u16 dsp_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = + {IGP01E1000_PHY_AGC_PARAM_A, + IGP01E1000_PHY_AGC_PARAM_B, + IGP01E1000_PHY_AGC_PARAM_C, + IGP01E1000_PHY_AGC_PARAM_D}; + u16 min_length, max_length; + + DEBUGFUNC("e1000_config_dsp_after_link_change"); + + if (hw->phy_type != e1000_phy_igp) + return E1000_SUCCESS; + + if (link_up) { + ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT("Error getting link speed and duplex\n"); + return ret_val; + } + + if (speed == SPEED_1000) { + + ret_val = e1000_get_cable_length(hw, &min_length, &max_length); + if (ret_val) + return ret_val; + + if ((hw->dsp_config_state == e1000_dsp_config_enabled) && + min_length >= e1000_igp_cable_length_50) { + + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; + + ret_val = e1000_write_phy_reg(hw, dsp_reg_array[i], + phy_data); + if (ret_val) + return ret_val; + } + hw->dsp_config_state = e1000_dsp_config_activated; + } + + if ((hw->ffe_config_state == e1000_ffe_config_enabled) && + (min_length < e1000_igp_cable_length_50)) { + + u16 ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_20; + u32 idle_errs = 0; + + /* clear previous idle error counts */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + for (i = 0; i < ffe_idle_err_timeout; i++) { + udelay(1000); + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + idle_errs += (phy_data & SR_1000T_IDLE_ERROR_CNT); + if (idle_errs > SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT) { + hw->ffe_config_state = e1000_ffe_config_active; + + ret_val = e1000_write_phy_reg(hw, + IGP01E1000_PHY_DSP_FFE, + IGP01E1000_PHY_DSP_FFE_CM_CP); + if (ret_val) + return ret_val; + break; + } + + if (idle_errs) + ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_100; + } + } + } + } else { + if (hw->dsp_config_state == e1000_dsp_config_activated) { + /* Save off the current value of register 0x2F5B to be restored at + * the end of the routines. */ + ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + if (ret_val) + return ret_val; + + /* Disable the PHY transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + if (ret_val) + return ret_val; + + mdelay(20); + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_FORCE_GIGA); + if (ret_val) + return ret_val; + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; + phy_data |= IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS; + + ret_val = e1000_write_phy_reg(hw,dsp_reg_array[i], phy_data); + if (ret_val) + return ret_val; + } + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_RESTART_AUTONEG); + if (ret_val) + return ret_val; + + mdelay(20); + + /* Now enable the transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (ret_val) + return ret_val; + + hw->dsp_config_state = e1000_dsp_config_enabled; + } + + if (hw->ffe_config_state == e1000_ffe_config_active) { + /* Save off the current value of register 0x2F5B to be restored at + * the end of the routines. */ + ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + if (ret_val) + return ret_val; + + /* Disable the PHY transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + if (ret_val) + return ret_val; + + mdelay(20); + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_FORCE_GIGA); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_DSP_FFE, + IGP01E1000_PHY_DSP_FFE_DEFAULT); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_RESTART_AUTONEG); + if (ret_val) + return ret_val; + + mdelay(20); + + /* Now enable the transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (ret_val) + return ret_val; + + hw->ffe_config_state = e1000_ffe_config_enabled; + } + } + return E1000_SUCCESS; +} + +/***************************************************************************** + * Set PHY to class A mode + * Assumes the following operations will follow to enable the new class mode. + * 1. Do a PHY soft reset + * 2. Restart auto-negotiation or force link. + * + * hw - Struct containing variables accessed by shared code + ****************************************************************************/ +static s32 e1000_set_phy_mode(struct e1000_hw *hw) +{ + s32 ret_val; + u16 eeprom_data; + + DEBUGFUNC("e1000_set_phy_mode"); + + if ((hw->mac_type == e1000_82545_rev_3) && + (hw->media_type == e1000_media_type_copper)) { + ret_val = e1000_read_eeprom(hw, EEPROM_PHY_CLASS_WORD, 1, &eeprom_data); + if (ret_val) { + return ret_val; + } + + if ((eeprom_data != EEPROM_RESERVED_WORD) && + (eeprom_data & EEPROM_PHY_CLASS_A)) { + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x000B); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x8104); + if (ret_val) + return ret_val; + + hw->phy_reset_disable = false; + } + } + + return E1000_SUCCESS; +} + +/***************************************************************************** + * + * This function sets the lplu state according to the active flag. When + * activating lplu this function also disables smart speed and vise versa. + * lplu will not be activated unless the device autonegotiation advertisment + * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. + * hw: Struct containing variables accessed by shared code + * active - true to enable lplu false to disable lplu. + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + * + ****************************************************************************/ + +static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active) +{ + u32 phy_ctrl = 0; + s32 ret_val; + u16 phy_data; + DEBUGFUNC("e1000_set_d3_lplu_state"); + + if (hw->phy_type != e1000_phy_igp && hw->phy_type != e1000_phy_igp_2 + && hw->phy_type != e1000_phy_igp_3) + return E1000_SUCCESS; + + /* During driver activity LPLU should not be used or it will attain link + * from the lowest speeds starting from 10Mbps. The capability is used for + * Dx transitions and states */ + if (hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, &phy_data); + if (ret_val) + return ret_val; + } else if (hw->mac_type == e1000_ich8lan) { + /* MAC writes into PHY register based on the state transition + * and start auto-negotiation. SW driver can overwrite the settings + * in CSR PHY power control E1000_PHY_CTRL register. */ + phy_ctrl = er32(PHY_CTRL); + } else { + ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); + if (ret_val) + return ret_val; + } + + if (!active) { + if (hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547_rev_2) { + phy_data &= ~IGP01E1000_GMII_FLEX_SPD; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); + if (ret_val) + return ret_val; + } else { + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU; + ew32(PHY_CTRL, phy_ctrl); + } else { + phy_data &= ~IGP02E1000_PM_D3_LPLU; + ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, + phy_data); + if (ret_val) + return ret_val; + } + } + + /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during + * Dx states where the power conservation is most important. During + * driver activity we should enable SmartSpeed, so performance is + * maintained. */ + if (hw->smart_speed == e1000_smart_speed_on) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } else if (hw->smart_speed == e1000_smart_speed_off) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } + + } else if ((hw->autoneg_advertised == AUTONEG_ADVERTISE_SPEED_DEFAULT) || + (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_ALL ) || + (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_100_ALL)) { + + if (hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547_rev_2) { + phy_data |= IGP01E1000_GMII_FLEX_SPD; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); + if (ret_val) + return ret_val; + } else { + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU; + ew32(PHY_CTRL, phy_ctrl); + } else { + phy_data |= IGP02E1000_PM_D3_LPLU; + ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, + phy_data); + if (ret_val) + return ret_val; + } + } + + /* When LPLU is enabled we should disable SmartSpeed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); + if (ret_val) + return ret_val; + + } + return E1000_SUCCESS; +} + +/***************************************************************************** + * + * This function sets the lplu d0 state according to the active flag. When + * activating lplu this function also disables smart speed and vise versa. + * lplu will not be activated unless the device autonegotiation advertisment + * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. + * hw: Struct containing variables accessed by shared code + * active - true to enable lplu false to disable lplu. + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + * + ****************************************************************************/ + +static s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active) +{ + u32 phy_ctrl = 0; + s32 ret_val; + u16 phy_data; + DEBUGFUNC("e1000_set_d0_lplu_state"); + + if (hw->mac_type <= e1000_82547_rev_2) + return E1000_SUCCESS; + + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl = er32(PHY_CTRL); + } else { + ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); + if (ret_val) + return ret_val; + } + + if (!active) { + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU; + ew32(PHY_CTRL, phy_ctrl); + } else { + phy_data &= ~IGP02E1000_PM_D0_LPLU; + ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); + if (ret_val) + return ret_val; + } + + /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during + * Dx states where the power conservation is most important. During + * driver activity we should enable SmartSpeed, so performance is + * maintained. */ + if (hw->smart_speed == e1000_smart_speed_on) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } else if (hw->smart_speed == e1000_smart_speed_off) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } + + + } else { + + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU; + ew32(PHY_CTRL, phy_ctrl); + } else { + phy_data |= IGP02E1000_PM_D0_LPLU; + ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); + if (ret_val) + return ret_val; + } + + /* When LPLU is enabled we should disable SmartSpeed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); + if (ret_val) + return ret_val; + + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Change VCO speed register to improve Bit Error Rate performance of SERDES. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_set_vco_speed(struct e1000_hw *hw) +{ + s32 ret_val; + u16 default_page = 0; + u16 phy_data; + + DEBUGFUNC("e1000_set_vco_speed"); + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + return E1000_SUCCESS; + } + + /* Set PHY register 30, page 5, bit 8 to 0 */ + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, &default_page); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~M88E1000_PHY_VCO_REG_BIT8; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); + if (ret_val) + return ret_val; + + /* Set PHY register 30, page 4, bit 11 to 1 */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PHY_VCO_REG_BIT11; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, default_page); + if (ret_val) + return ret_val; + + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function reads the cookie from ARC ram. + * + * returns: - E1000_SUCCESS . + ****************************************************************************/ +static s32 e1000_host_if_read_cookie(struct e1000_hw *hw, u8 *buffer) +{ + u8 i; + u32 offset = E1000_MNG_DHCP_COOKIE_OFFSET; + u8 length = E1000_MNG_DHCP_COOKIE_LENGTH; + + length = (length >> 2); + offset = (offset >> 2); + + for (i = 0; i < length; i++) { + *((u32 *)buffer + i) = + E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset + i); + } + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function checks whether the HOST IF is enabled for command operaton + * and also checks whether the previous command is completed. + * It busy waits in case of previous command is not completed. + * + * returns: - E1000_ERR_HOST_INTERFACE_COMMAND in case if is not ready or + * timeout + * - E1000_SUCCESS for success. + ****************************************************************************/ +static s32 e1000_mng_enable_host_if(struct e1000_hw *hw) +{ + u32 hicr; + u8 i; + + /* Check that the host interface is enabled. */ + hicr = er32(HICR); + if ((hicr & E1000_HICR_EN) == 0) { + DEBUGOUT("E1000_HOST_EN bit disabled.\n"); + return -E1000_ERR_HOST_INTERFACE_COMMAND; + } + /* check the previous command is completed */ + for (i = 0; i < E1000_MNG_DHCP_COMMAND_TIMEOUT; i++) { + hicr = er32(HICR); + if (!(hicr & E1000_HICR_C)) + break; + mdelay(1); + } + + if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) { + DEBUGOUT("Previous command timeout failed .\n"); + return -E1000_ERR_HOST_INTERFACE_COMMAND; + } + return E1000_SUCCESS; +} + +/***************************************************************************** + * This function writes the buffer content at the offset given on the host if. + * It also does alignment considerations to do the writes in most efficient way. + * Also fills up the sum of the buffer in *buffer parameter. + * + * returns - E1000_SUCCESS for success. + ****************************************************************************/ +static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer, u16 length, + u16 offset, u8 *sum) +{ + u8 *tmp; + u8 *bufptr = buffer; + u32 data = 0; + u16 remaining, i, j, prev_bytes; + + /* sum = only sum of the data and it is not checksum */ + + if (length == 0 || offset + length > E1000_HI_MAX_MNG_DATA_LENGTH) { + return -E1000_ERR_PARAM; + } + + tmp = (u8 *)&data; + prev_bytes = offset & 0x3; + offset &= 0xFFFC; + offset >>= 2; + + if (prev_bytes) { + data = E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset); + for (j = prev_bytes; j < sizeof(u32); j++) { + *(tmp + j) = *bufptr++; + *sum += *(tmp + j); + } + E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset, data); + length -= j - prev_bytes; + offset++; + } + + remaining = length & 0x3; + length -= remaining; + + /* Calculate length in DWORDs */ + length >>= 2; + + /* The device driver writes the relevant command block into the + * ram area. */ + for (i = 0; i < length; i++) { + for (j = 0; j < sizeof(u32); j++) { + *(tmp + j) = *bufptr++; + *sum += *(tmp + j); + } + + E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); + } + if (remaining) { + for (j = 0; j < sizeof(u32); j++) { + if (j < remaining) + *(tmp + j) = *bufptr++; + else + *(tmp + j) = 0; + + *sum += *(tmp + j); + } + E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); + } + + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function writes the command header after does the checksum calculation. + * + * returns - E1000_SUCCESS for success. + ****************************************************************************/ +static s32 e1000_mng_write_cmd_header(struct e1000_hw *hw, + struct e1000_host_mng_command_header *hdr) +{ + u16 i; + u8 sum; + u8 *buffer; + + /* Write the whole command header structure which includes sum of + * the buffer */ + + u16 length = sizeof(struct e1000_host_mng_command_header); + + sum = hdr->checksum; + hdr->checksum = 0; + + buffer = (u8 *)hdr; + i = length; + while (i--) + sum += buffer[i]; + + hdr->checksum = 0 - sum; + + length >>= 2; + /* The device driver writes the relevant command block into the ram area. */ + for (i = 0; i < length; i++) { + E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, i, *((u32 *)hdr + i)); + E1000_WRITE_FLUSH(); + } + + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function indicates to ARC that a new command is pending which completes + * one write operation by the driver. + * + * returns - E1000_SUCCESS for success. + ****************************************************************************/ +static s32 e1000_mng_write_commit(struct e1000_hw *hw) +{ + u32 hicr; + + hicr = er32(HICR); + /* Setting this bit tells the ARC that a new command is pending. */ + ew32(HICR, hicr | E1000_HICR_C); + + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function checks the mode of the firmware. + * + * returns - true when the mode is IAMT or false. + ****************************************************************************/ +bool e1000_check_mng_mode(struct e1000_hw *hw) +{ + u32 fwsm; + + fwsm = er32(FWSM); + + if (hw->mac_type == e1000_ich8lan) { + if ((fwsm & E1000_FWSM_MODE_MASK) == + (E1000_MNG_ICH_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) + return true; + } else if ((fwsm & E1000_FWSM_MODE_MASK) == + (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) + return true; + + return false; +} + + +/***************************************************************************** + * This function writes the dhcp info . + ****************************************************************************/ +s32 e1000_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length) +{ + s32 ret_val; + struct e1000_host_mng_command_header hdr; + + hdr.command_id = E1000_MNG_DHCP_TX_PAYLOAD_CMD; + hdr.command_length = length; + hdr.reserved1 = 0; + hdr.reserved2 = 0; + hdr.checksum = 0; + + ret_val = e1000_mng_enable_host_if(hw); + if (ret_val == E1000_SUCCESS) { + ret_val = e1000_mng_host_if_write(hw, buffer, length, sizeof(hdr), + &(hdr.checksum)); + if (ret_val == E1000_SUCCESS) { + ret_val = e1000_mng_write_cmd_header(hw, &hdr); + if (ret_val == E1000_SUCCESS) + ret_val = e1000_mng_write_commit(hw); + } + } + return ret_val; +} + + +/***************************************************************************** + * This function calculates the checksum. + * + * returns - checksum of buffer contents. + ****************************************************************************/ +static u8 e1000_calculate_mng_checksum(char *buffer, u32 length) +{ + u8 sum = 0; + u32 i; + + if (!buffer) + return 0; + + for (i=0; i < length; i++) + sum += buffer[i]; + + return (u8)(0 - sum); +} + +/***************************************************************************** + * This function checks whether tx pkt filtering needs to be enabled or not. + * + * returns - true for packet filtering or false. + ****************************************************************************/ +bool e1000_enable_tx_pkt_filtering(struct e1000_hw *hw) +{ + /* called in init as well as watchdog timer functions */ + + s32 ret_val, checksum; + bool tx_filter = false; + struct e1000_host_mng_dhcp_cookie *hdr = &(hw->mng_cookie); + u8 *buffer = (u8 *) &(hw->mng_cookie); + + if (e1000_check_mng_mode(hw)) { + ret_val = e1000_mng_enable_host_if(hw); + if (ret_val == E1000_SUCCESS) { + ret_val = e1000_host_if_read_cookie(hw, buffer); + if (ret_val == E1000_SUCCESS) { + checksum = hdr->checksum; + hdr->checksum = 0; + if ((hdr->signature == E1000_IAMT_SIGNATURE) && + checksum == e1000_calculate_mng_checksum((char *)buffer, + E1000_MNG_DHCP_COOKIE_LENGTH)) { + if (hdr->status & + E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT) + tx_filter = true; + } else + tx_filter = true; + } else + tx_filter = true; + } + } + + hw->tx_pkt_filtering = tx_filter; + return tx_filter; +} + +/****************************************************************************** + * Verifies the hardware needs to allow ARPs to be processed by the host + * + * hw - Struct containing variables accessed by shared code + * + * returns: - true/false + * + *****************************************************************************/ +u32 e1000_enable_mng_pass_thru(struct e1000_hw *hw) +{ + u32 manc; + u32 fwsm, factps; + + if (hw->asf_firmware_present) { + manc = er32(MANC); + + if (!(manc & E1000_MANC_RCV_TCO_EN) || + !(manc & E1000_MANC_EN_MAC_ADDR_FILTER)) + return false; + if (e1000_arc_subsystem_valid(hw)) { + fwsm = er32(FWSM); + factps = er32(FACTPS); + + if ((((fwsm & E1000_FWSM_MODE_MASK) >> E1000_FWSM_MODE_SHIFT) == + e1000_mng_mode_pt) && !(factps & E1000_FACTPS_MNGCG)) + return true; + } else + if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN)) + return true; + } + return false; +} + +static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_status_reg; + u16 i; + + /* Polarity reversal workaround for forced 10F/10H links. */ + + /* Disable the transmitter on the PHY */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); + if (ret_val) + return ret_val; + + /* This loop will early-out if the NO link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Link Status bit + * to be clear. + */ + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0) break; + mdelay(100); + } + + /* Recommended delay time after link has been lost */ + mdelay(1000); + + /* Now we will re-enable th transmitter on the PHY */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); + if (ret_val) + return ret_val; + + /* This loop will early-out if the link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Link Status bit + * to be set. + */ + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_LINK_STATUS) break; + mdelay(100); + } + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Disables PCI-Express master access. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - none. + * + ***************************************************************************/ +static void e1000_set_pci_express_master_disable(struct e1000_hw *hw) +{ + u32 ctrl; + + DEBUGFUNC("e1000_set_pci_express_master_disable"); + + if (hw->bus_type != e1000_bus_type_pci_express) + return; + + ctrl = er32(CTRL); + ctrl |= E1000_CTRL_GIO_MASTER_DISABLE; + ew32(CTRL, ctrl); +} + +/******************************************************************************* + * + * Disables PCI-Express master access and verifies there are no pending requests + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_MASTER_REQUESTS_PENDING if master disable bit hasn't + * caused the master requests to be disabled. + * E1000_SUCCESS master requests disabled. + * + ******************************************************************************/ +s32 e1000_disable_pciex_master(struct e1000_hw *hw) +{ + s32 timeout = MASTER_DISABLE_TIMEOUT; /* 80ms */ + + DEBUGFUNC("e1000_disable_pciex_master"); + + if (hw->bus_type != e1000_bus_type_pci_express) + return E1000_SUCCESS; + + e1000_set_pci_express_master_disable(hw); + + while (timeout) { + if (!(er32(STATUS) & E1000_STATUS_GIO_MASTER_ENABLE)) + break; + else + udelay(100); + timeout--; + } + + if (!timeout) { + DEBUGOUT("Master requests are pending.\n"); + return -E1000_ERR_MASTER_REQUESTS_PENDING; + } + + return E1000_SUCCESS; +} + +/******************************************************************************* + * + * Check for EEPROM Auto Read bit done. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_RESET if fail to reset MAC + * E1000_SUCCESS at any other case. + * + ******************************************************************************/ +static s32 e1000_get_auto_rd_done(struct e1000_hw *hw) +{ + s32 timeout = AUTO_READ_DONE_TIMEOUT; + + DEBUGFUNC("e1000_get_auto_rd_done"); + + switch (hw->mac_type) { + default: + msleep(5); + break; + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + while (timeout) { + if (er32(EECD) & E1000_EECD_AUTO_RD) + break; + else msleep(1); + timeout--; + } + + if (!timeout) { + DEBUGOUT("Auto read by HW from EEPROM has not completed.\n"); + return -E1000_ERR_RESET; + } + break; + } + + /* PHY configuration from NVM just starts after EECD_AUTO_RD sets to high. + * Need to wait for PHY configuration completion before accessing NVM + * and PHY. */ + if (hw->mac_type == e1000_82573) + msleep(25); + + return E1000_SUCCESS; +} + +/*************************************************************************** + * Checks if the PHY configuration is done + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_RESET if fail to reset MAC + * E1000_SUCCESS at any other case. + * + ***************************************************************************/ +static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw) +{ + s32 timeout = PHY_CFG_TIMEOUT; + u32 cfg_mask = E1000_EEPROM_CFG_DONE; + + DEBUGFUNC("e1000_get_phy_cfg_done"); + + switch (hw->mac_type) { + default: + mdelay(10); + break; + case e1000_80003es2lan: + /* Separate *_CFG_DONE_* bit for each port */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) + cfg_mask = E1000_EEPROM_CFG_DONE_PORT_1; + /* Fall Through */ + case e1000_82571: + case e1000_82572: + while (timeout) { + if (er32(EEMNGCTL) & cfg_mask) + break; + else + msleep(1); + timeout--; + } + if (!timeout) { + DEBUGOUT("MNG configuration cycle has not completed.\n"); + return -E1000_ERR_RESET; + } + break; + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Using the combination of SMBI and SWESMBI semaphore bits when resetting + * adapter or Eeprom access. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_EEPROM if fail to access EEPROM. + * E1000_SUCCESS at any other case. + * + ***************************************************************************/ +static s32 e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw) +{ + s32 timeout; + u32 swsm; + + DEBUGFUNC("e1000_get_hw_eeprom_semaphore"); + + if (!hw->eeprom_semaphore_present) + return E1000_SUCCESS; + + if (hw->mac_type == e1000_80003es2lan) { + /* Get the SW semaphore. */ + if (e1000_get_software_semaphore(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + } + + /* Get the FW semaphore. */ + timeout = hw->eeprom.word_size + 1; + while (timeout) { + swsm = er32(SWSM); + swsm |= E1000_SWSM_SWESMBI; + ew32(SWSM, swsm); + /* if we managed to set the bit we got the semaphore. */ + swsm = er32(SWSM); + if (swsm & E1000_SWSM_SWESMBI) + break; + + udelay(50); + timeout--; + } + + if (!timeout) { + /* Release semaphores */ + e1000_put_hw_eeprom_semaphore(hw); + DEBUGOUT("Driver can't access the Eeprom - SWESMBI bit is set.\n"); + return -E1000_ERR_EEPROM; + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * This function clears HW semaphore bits. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - None. + * + ***************************************************************************/ +static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw) +{ + u32 swsm; + + DEBUGFUNC("e1000_put_hw_eeprom_semaphore"); + + if (!hw->eeprom_semaphore_present) + return; + + swsm = er32(SWSM); + if (hw->mac_type == e1000_80003es2lan) { + /* Release both semaphores. */ + swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI); + } else + swsm &= ~(E1000_SWSM_SWESMBI); + ew32(SWSM, swsm); +} + +/*************************************************************************** + * + * Obtaining software semaphore bit (SMBI) before resetting PHY. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_RESET if fail to obtain semaphore. + * E1000_SUCCESS at any other case. + * + ***************************************************************************/ +static s32 e1000_get_software_semaphore(struct e1000_hw *hw) +{ + s32 timeout = hw->eeprom.word_size + 1; + u32 swsm; + + DEBUGFUNC("e1000_get_software_semaphore"); + + if (hw->mac_type != e1000_80003es2lan) { + return E1000_SUCCESS; + } + + while (timeout) { + swsm = er32(SWSM); + /* If SMBI bit cleared, it is now set and we hold the semaphore */ + if (!(swsm & E1000_SWSM_SMBI)) + break; + mdelay(1); + timeout--; + } + + if (!timeout) { + DEBUGOUT("Driver can't access device - SMBI bit is set.\n"); + return -E1000_ERR_RESET; + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Release semaphore bit (SMBI). + * + * hw: Struct containing variables accessed by shared code + * + ***************************************************************************/ +static void e1000_release_software_semaphore(struct e1000_hw *hw) +{ + u32 swsm; + + DEBUGFUNC("e1000_release_software_semaphore"); + + if (hw->mac_type != e1000_80003es2lan) { + return; + } + + swsm = er32(SWSM); + /* Release the SW semaphores.*/ + swsm &= ~E1000_SWSM_SMBI; + ew32(SWSM, swsm); +} + +/****************************************************************************** + * Checks if PHY reset is blocked due to SOL/IDER session, for example. + * Returning E1000_BLK_PHY_RESET isn't necessarily an error. But it's up to + * the caller to figure out how to deal with it. + * + * hw - Struct containing variables accessed by shared code + * + * returns: - E1000_BLK_PHY_RESET + * E1000_SUCCESS + * + *****************************************************************************/ +s32 e1000_check_phy_reset_block(struct e1000_hw *hw) +{ + u32 manc = 0; + u32 fwsm = 0; + + if (hw->mac_type == e1000_ich8lan) { + fwsm = er32(FWSM); + return (fwsm & E1000_FWSM_RSPCIPHY) ? E1000_SUCCESS + : E1000_BLK_PHY_RESET; + } + + if (hw->mac_type > e1000_82547_rev_2) + manc = er32(MANC); + return (manc & E1000_MANC_BLK_PHY_RST_ON_IDE) ? + E1000_BLK_PHY_RESET : E1000_SUCCESS; +} + +static u8 e1000_arc_subsystem_valid(struct e1000_hw *hw) +{ + u32 fwsm; + + /* On 8257x silicon, registers in the range of 0x8800 - 0x8FFC + * may not be provided a DMA clock when no manageability features are + * enabled. We do not want to perform any reads/writes to these registers + * if this is the case. We read FWSM to determine the manageability mode. + */ + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + fwsm = er32(FWSM); + if ((fwsm & E1000_FWSM_MODE_MASK) != 0) + return true; + break; + case e1000_ich8lan: + return true; + default: + break; + } + return false; +} + + +/****************************************************************************** + * Configure PCI-Ex no-snoop + * + * hw - Struct containing variables accessed by shared code. + * no_snoop - Bitmap of no-snoop events. + * + * returns: E1000_SUCCESS + * + *****************************************************************************/ +static s32 e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, u32 no_snoop) +{ + u32 gcr_reg = 0; + + DEBUGFUNC("e1000_set_pci_ex_no_snoop"); + + if (hw->bus_type == e1000_bus_type_unknown) + e1000_get_bus_info(hw); + + if (hw->bus_type != e1000_bus_type_pci_express) + return E1000_SUCCESS; + + if (no_snoop) { + gcr_reg = er32(GCR); + gcr_reg &= ~(PCI_EX_NO_SNOOP_ALL); + gcr_reg |= no_snoop; + ew32(GCR, gcr_reg); + } + if (hw->mac_type == e1000_ich8lan) { + u32 ctrl_ext; + + ew32(GCR, PCI_EX_82566_SNOOP_ALL); + + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_RO_DIS; + ew32(CTRL_EXT, ctrl_ext); + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Get software semaphore FLAG bit (SWFLAG). + * SWFLAG is used to synchronize the access to all shared resource between + * SW, FW and HW. + * + * hw: Struct containing variables accessed by shared code + * + ***************************************************************************/ +static s32 e1000_get_software_flag(struct e1000_hw *hw) +{ + s32 timeout = PHY_CFG_TIMEOUT; + u32 extcnf_ctrl; + + DEBUGFUNC("e1000_get_software_flag"); + + if (hw->mac_type == e1000_ich8lan) { + while (timeout) { + extcnf_ctrl = er32(EXTCNF_CTRL); + extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; + ew32(EXTCNF_CTRL, extcnf_ctrl); + + extcnf_ctrl = er32(EXTCNF_CTRL); + if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) + break; + mdelay(1); + timeout--; + } + + if (!timeout) { + DEBUGOUT("FW or HW locks the resource too long.\n"); + return -E1000_ERR_CONFIG; + } + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Release software semaphore FLAG bit (SWFLAG). + * SWFLAG is used to synchronize the access to all shared resource between + * SW, FW and HW. + * + * hw: Struct containing variables accessed by shared code + * + ***************************************************************************/ +static void e1000_release_software_flag(struct e1000_hw *hw) +{ + u32 extcnf_ctrl; + + DEBUGFUNC("e1000_release_software_flag"); + + if (hw->mac_type == e1000_ich8lan) { + extcnf_ctrl= er32(EXTCNF_CTRL); + extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; + ew32(EXTCNF_CTRL, extcnf_ctrl); + } + + return; +} + +/****************************************************************************** + * Reads a 16 bit word or words from the EEPROM using the ICH8's flash access + * register. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +static s32 e1000_read_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + s32 error = E1000_SUCCESS; + u32 flash_bank = 0; + u32 act_offset = 0; + u32 bank_offset = 0; + u16 word = 0; + u16 i = 0; + + /* We need to know which is the valid flash bank. In the event + * that we didn't allocate eeprom_shadow_ram, we may not be + * managing flash_bank. So it cannot be trusted and needs + * to be updated with each read. + */ + /* Value of bit 22 corresponds to the flash bank we're on. */ + flash_bank = (er32(EECD) & E1000_EECD_SEC1VAL) ? 1 : 0; + + /* Adjust offset appropriately if we're on bank 1 - adjust for word size */ + bank_offset = flash_bank * (hw->flash_bank_size * 2); + + error = e1000_get_software_flag(hw); + if (error != E1000_SUCCESS) + return error; + + for (i = 0; i < words; i++) { + if (hw->eeprom_shadow_ram != NULL && + hw->eeprom_shadow_ram[offset+i].modified) { + data[i] = hw->eeprom_shadow_ram[offset+i].eeprom_word; + } else { + /* The NVM part needs a byte offset, hence * 2 */ + act_offset = bank_offset + ((offset + i) * 2); + error = e1000_read_ich8_word(hw, act_offset, &word); + if (error != E1000_SUCCESS) + break; + data[i] = word; + } + } + + e1000_release_software_flag(hw); + + return error; +} + +/****************************************************************************** + * Writes a 16 bit word or words to the EEPROM using the ICH8's flash access + * register. Actually, writes are written to the shadow ram cache in the hw + * structure hw->e1000_shadow_ram. e1000_commit_shadow_ram flushes this to + * the NVM, which occurs when the NVM checksum is updated. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to write + * words - number of words to write + * data - words to write to the EEPROM + *****************************************************************************/ +static s32 e1000_write_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + u32 i = 0; + s32 error = E1000_SUCCESS; + + error = e1000_get_software_flag(hw); + if (error != E1000_SUCCESS) + return error; + + /* A driver can write to the NVM only if it has eeprom_shadow_ram + * allocated. Subsequent reads to the modified words are read from + * this cached structure as well. Writes will only go into this + * cached structure unless it's followed by a call to + * e1000_update_eeprom_checksum() where it will commit the changes + * and clear the "modified" field. + */ + if (hw->eeprom_shadow_ram != NULL) { + for (i = 0; i < words; i++) { + if ((offset + i) < E1000_SHADOW_RAM_WORDS) { + hw->eeprom_shadow_ram[offset+i].modified = true; + hw->eeprom_shadow_ram[offset+i].eeprom_word = data[i]; + } else { + error = -E1000_ERR_EEPROM; + break; + } + } + } else { + /* Drivers have the option to not allocate eeprom_shadow_ram as long + * as they don't perform any NVM writes. An attempt in doing so + * will result in this error. + */ + error = -E1000_ERR_EEPROM; + } + + e1000_release_software_flag(hw); + + return error; +} + +/****************************************************************************** + * This function does initial flash setup so that a new read/write/erase cycle + * can be started. + * + * hw - The pointer to the hw structure + ****************************************************************************/ +static s32 e1000_ich8_cycle_init(struct e1000_hw *hw) +{ + union ich8_hws_flash_status hsfsts; + s32 error = E1000_ERR_EEPROM; + s32 i = 0; + + DEBUGFUNC("e1000_ich8_cycle_init"); + + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + + /* May be check the Flash Des Valid bit in Hw status */ + if (hsfsts.hsf_status.fldesvalid == 0) { + DEBUGOUT("Flash descriptor invalid. SW Sequencing must be used."); + return error; + } + + /* Clear FCERR in Hw status by writing 1 */ + /* Clear DAEL in Hw status by writing a 1 */ + hsfsts.hsf_status.flcerr = 1; + hsfsts.hsf_status.dael = 1; + + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); + + /* Either we should have a hardware SPI cycle in progress bit to check + * against, in order to start a new cycle or FDONE bit should be changed + * in the hardware so that it is 1 after harware reset, which can then be + * used as an indication whether a cycle is in progress or has been + * completed .. we should also have some software semaphore mechanism to + * guard FDONE or the cycle in progress bit so that two threads access to + * those bits can be sequentiallized or a way so that 2 threads dont + * start the cycle at the same time */ + + if (hsfsts.hsf_status.flcinprog == 0) { + /* There is no cycle running at present, so we can start a cycle */ + /* Begin by setting Flash Cycle Done. */ + hsfsts.hsf_status.flcdone = 1; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); + error = E1000_SUCCESS; + } else { + /* otherwise poll for sometime so the current cycle has a chance + * to end before giving up. */ + for (i = 0; i < ICH_FLASH_COMMAND_TIMEOUT; i++) { + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcinprog == 0) { + error = E1000_SUCCESS; + break; + } + udelay(1); + } + if (error == E1000_SUCCESS) { + /* Successful in waiting for previous cycle to timeout, + * now set the Flash Cycle Done. */ + hsfsts.hsf_status.flcdone = 1; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); + } else { + DEBUGOUT("Flash controller busy, cannot get access"); + } + } + return error; +} + +/****************************************************************************** + * This function starts a flash cycle and waits for its completion + * + * hw - The pointer to the hw structure + ****************************************************************************/ +static s32 e1000_ich8_flash_cycle(struct e1000_hw *hw, u32 timeout) +{ + union ich8_hws_flash_ctrl hsflctl; + union ich8_hws_flash_status hsfsts; + s32 error = E1000_ERR_EEPROM; + u32 i = 0; + + /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */ + hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); + hsflctl.hsf_ctrl.flcgo = 1; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); + + /* wait till FDONE bit is set to 1 */ + do { + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcdone == 1) + break; + udelay(1); + i++; + } while (i < timeout); + if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0) { + error = E1000_SUCCESS; + } + return error; +} + +/****************************************************************************** + * Reads a byte or word from the NVM using the ICH8 flash access registers. + * + * hw - The pointer to the hw structure + * index - The index of the byte or word to read. + * size - Size of data to read, 1=byte 2=word + * data - Pointer to the word to store the value read. + *****************************************************************************/ +static s32 e1000_read_ich8_data(struct e1000_hw *hw, u32 index, u32 size, + u16 *data) +{ + union ich8_hws_flash_status hsfsts; + union ich8_hws_flash_ctrl hsflctl; + u32 flash_linear_address; + u32 flash_data = 0; + s32 error = -E1000_ERR_EEPROM; + s32 count = 0; + + DEBUGFUNC("e1000_read_ich8_data"); + + if (size < 1 || size > 2 || data == NULL || + index > ICH_FLASH_LINEAR_ADDR_MASK) + return error; + + flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) + + hw->flash_base_addr; + + do { + udelay(1); + /* Steps */ + error = e1000_ich8_cycle_init(hw); + if (error != E1000_SUCCESS) + break; + + hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); + /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ + hsflctl.hsf_ctrl.fldbcount = size - 1; + hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); + + /* Write the last 24 bits of index into Flash Linear address field in + * Flash Address */ + /* TODO: TBD maybe check the index against the size of flash */ + + E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); + + error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT); + + /* Check if FCERR is set to 1, if set to 1, clear it and try the whole + * sequence a few more times, else read in (shift in) the Flash Data0, + * the order is least significant byte first msb to lsb */ + if (error == E1000_SUCCESS) { + flash_data = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0); + if (size == 1) { + *data = (u8)(flash_data & 0x000000FF); + } else if (size == 2) { + *data = (u16)(flash_data & 0x0000FFFF); + } + break; + } else { + /* If we've gotten here, then things are probably completely hosed, + * but if the error condition is detected, it won't hurt to give + * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times. + */ + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcerr == 1) { + /* Repeat for some time before giving up. */ + continue; + } else if (hsfsts.hsf_status.flcdone == 0) { + DEBUGOUT("Timeout error - flash cycle did not complete."); + break; + } + } + } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); + + return error; +} + +/****************************************************************************** + * Writes One /two bytes to the NVM using the ICH8 flash access registers. + * + * hw - The pointer to the hw structure + * index - The index of the byte/word to read. + * size - Size of data to read, 1=byte 2=word + * data - The byte(s) to write to the NVM. + *****************************************************************************/ +static s32 e1000_write_ich8_data(struct e1000_hw *hw, u32 index, u32 size, + u16 data) +{ + union ich8_hws_flash_status hsfsts; + union ich8_hws_flash_ctrl hsflctl; + u32 flash_linear_address; + u32 flash_data = 0; + s32 error = -E1000_ERR_EEPROM; + s32 count = 0; + + DEBUGFUNC("e1000_write_ich8_data"); + + if (size < 1 || size > 2 || data > size * 0xff || + index > ICH_FLASH_LINEAR_ADDR_MASK) + return error; + + flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) + + hw->flash_base_addr; + + do { + udelay(1); + /* Steps */ + error = e1000_ich8_cycle_init(hw); + if (error != E1000_SUCCESS) + break; + + hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); + /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ + hsflctl.hsf_ctrl.fldbcount = size -1; + hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); + + /* Write the last 24 bits of index into Flash Linear address field in + * Flash Address */ + E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); + + if (size == 1) + flash_data = (u32)data & 0x00FF; + else + flash_data = (u32)data; + + E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0, flash_data); + + /* check if FCERR is set to 1 , if set to 1, clear it and try the whole + * sequence a few more times else done */ + error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT); + if (error == E1000_SUCCESS) { + break; + } else { + /* If we're here, then things are most likely completely hosed, + * but if the error condition is detected, it won't hurt to give + * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times. + */ + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcerr == 1) { + /* Repeat for some time before giving up. */ + continue; + } else if (hsfsts.hsf_status.flcdone == 0) { + DEBUGOUT("Timeout error - flash cycle did not complete."); + break; + } + } + } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); + + return error; +} + +/****************************************************************************** + * Reads a single byte from the NVM using the ICH8 flash access registers. + * + * hw - pointer to e1000_hw structure + * index - The index of the byte to read. + * data - Pointer to a byte to store the value read. + *****************************************************************************/ +static s32 e1000_read_ich8_byte(struct e1000_hw *hw, u32 index, u8 *data) +{ + s32 status = E1000_SUCCESS; + u16 word = 0; + + status = e1000_read_ich8_data(hw, index, 1, &word); + if (status == E1000_SUCCESS) { + *data = (u8)word; + } + + return status; +} + +/****************************************************************************** + * Writes a single byte to the NVM using the ICH8 flash access registers. + * Performs verification by reading back the value and then going through + * a retry algorithm before giving up. + * + * hw - pointer to e1000_hw structure + * index - The index of the byte to write. + * byte - The byte to write to the NVM. + *****************************************************************************/ +static s32 e1000_verify_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte) +{ + s32 error = E1000_SUCCESS; + s32 program_retries = 0; + + DEBUGOUT2("Byte := %2.2X Offset := %d\n", byte, index); + + error = e1000_write_ich8_byte(hw, index, byte); + + if (error != E1000_SUCCESS) { + for (program_retries = 0; program_retries < 100; program_retries++) { + DEBUGOUT2("Retrying \t Byte := %2.2X Offset := %d\n", byte, index); + error = e1000_write_ich8_byte(hw, index, byte); + udelay(100); + if (error == E1000_SUCCESS) + break; + } + } + + if (program_retries == 100) + error = E1000_ERR_EEPROM; + + return error; +} + +/****************************************************************************** + * Writes a single byte to the NVM using the ICH8 flash access registers. + * + * hw - pointer to e1000_hw structure + * index - The index of the byte to read. + * data - The byte to write to the NVM. + *****************************************************************************/ +static s32 e1000_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 data) +{ + s32 status = E1000_SUCCESS; + u16 word = (u16)data; + + status = e1000_write_ich8_data(hw, index, 1, word); + + return status; +} + +/****************************************************************************** + * Reads a word from the NVM using the ICH8 flash access registers. + * + * hw - pointer to e1000_hw structure + * index - The starting byte index of the word to read. + * data - Pointer to a word to store the value read. + *****************************************************************************/ +static s32 e1000_read_ich8_word(struct e1000_hw *hw, u32 index, u16 *data) +{ + s32 status = E1000_SUCCESS; + status = e1000_read_ich8_data(hw, index, 2, data); + return status; +} + +/****************************************************************************** + * Erases the bank specified. Each bank may be a 4, 8 or 64k block. Banks are 0 + * based. + * + * hw - pointer to e1000_hw structure + * bank - 0 for first bank, 1 for second bank + * + * Note that this function may actually erase as much as 8 or 64 KBytes. The + * amount of NVM used in each bank is a *minimum* of 4 KBytes, but in fact the + * bank size may be 4, 8 or 64 KBytes + *****************************************************************************/ +static s32 e1000_erase_ich8_4k_segment(struct e1000_hw *hw, u32 bank) +{ + union ich8_hws_flash_status hsfsts; + union ich8_hws_flash_ctrl hsflctl; + u32 flash_linear_address; + s32 count = 0; + s32 error = E1000_ERR_EEPROM; + s32 iteration; + s32 sub_sector_size = 0; + s32 bank_size; + s32 j = 0; + s32 error_flag = 0; + + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + + /* Determine HW Sector size: Read BERASE bits of Hw flash Status register */ + /* 00: The Hw sector is 256 bytes, hence we need to erase 16 + * consecutive sectors. The start index for the nth Hw sector can be + * calculated as bank * 4096 + n * 256 + * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector. + * The start index for the nth Hw sector can be calculated + * as bank * 4096 + * 10: The HW sector is 8K bytes + * 11: The Hw sector size is 64K bytes */ + if (hsfsts.hsf_status.berasesz == 0x0) { + /* Hw sector size 256 */ + sub_sector_size = ICH_FLASH_SEG_SIZE_256; + bank_size = ICH_FLASH_SECTOR_SIZE; + iteration = ICH_FLASH_SECTOR_SIZE / ICH_FLASH_SEG_SIZE_256; + } else if (hsfsts.hsf_status.berasesz == 0x1) { + bank_size = ICH_FLASH_SEG_SIZE_4K; + iteration = 1; + } else if (hsfsts.hsf_status.berasesz == 0x3) { + bank_size = ICH_FLASH_SEG_SIZE_64K; + iteration = 1; + } else { + return error; + } + + for (j = 0; j < iteration ; j++) { + do { + count++; + /* Steps */ + error = e1000_ich8_cycle_init(hw); + if (error != E1000_SUCCESS) { + error_flag = 1; + break; + } + + /* Write a value 11 (block Erase) in Flash Cycle field in Hw flash + * Control */ + hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); + hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); + + /* Write the last 24 bits of an index within the block into Flash + * Linear address field in Flash Address. This probably needs to + * be calculated here based off the on-chip erase sector size and + * the software bank size (4, 8 or 64 KBytes) */ + flash_linear_address = bank * bank_size + j * sub_sector_size; + flash_linear_address += hw->flash_base_addr; + flash_linear_address &= ICH_FLASH_LINEAR_ADDR_MASK; + + E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); + + error = e1000_ich8_flash_cycle(hw, ICH_FLASH_ERASE_TIMEOUT); + /* Check if FCERR is set to 1. If 1, clear it and try the whole + * sequence a few more times else Done */ + if (error == E1000_SUCCESS) { + break; + } else { + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcerr == 1) { + /* repeat for some time before giving up */ + continue; + } else if (hsfsts.hsf_status.flcdone == 0) { + error_flag = 1; + break; + } + } + } while ((count < ICH_FLASH_CYCLE_REPEAT_COUNT) && !error_flag); + if (error_flag == 1) + break; + } + if (error_flag != 1) + error = E1000_SUCCESS; + return error; +} + +static s32 e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, + u32 cnf_base_addr, + u32 cnf_size) +{ + u32 ret_val = E1000_SUCCESS; + u16 word_addr, reg_data, reg_addr; + u16 i; + + /* cnf_base_addr is in DWORD */ + word_addr = (u16)(cnf_base_addr << 1); + + /* cnf_size is returned in size of dwords */ + for (i = 0; i < cnf_size; i++) { + ret_val = e1000_read_eeprom(hw, (word_addr + i*2), 1, ®_data); + if (ret_val) + return ret_val; + + ret_val = e1000_read_eeprom(hw, (word_addr + i*2 + 1), 1, ®_addr); + if (ret_val) + return ret_val; + + ret_val = e1000_get_software_flag(hw); + if (ret_val != E1000_SUCCESS) + return ret_val; + + ret_val = e1000_write_phy_reg_ex(hw, (u32)reg_addr, reg_data); + + e1000_release_software_flag(hw); + } + + return ret_val; +} + + +/****************************************************************************** + * This function initializes the PHY from the NVM on ICH8 platforms. This + * is needed due to an issue where the NVM configuration is not properly + * autoloaded after power transitions. Therefore, after each PHY reset, we + * will load the configuration data out of the NVM manually. + * + * hw: Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_init_lcd_from_nvm(struct e1000_hw *hw) +{ + u32 reg_data, cnf_base_addr, cnf_size, ret_val, loop; + + if (hw->phy_type != e1000_phy_igp_3) + return E1000_SUCCESS; + + /* Check if SW needs configure the PHY */ + reg_data = er32(FEXTNVM); + if (!(reg_data & FEXTNVM_SW_CONFIG)) + return E1000_SUCCESS; + + /* Wait for basic configuration completes before proceeding*/ + loop = 0; + do { + reg_data = er32(STATUS) & E1000_STATUS_LAN_INIT_DONE; + udelay(100); + loop++; + } while ((!reg_data) && (loop < 50)); + + /* Clear the Init Done bit for the next init event */ + reg_data = er32(STATUS); + reg_data &= ~E1000_STATUS_LAN_INIT_DONE; + ew32(STATUS, reg_data); + + /* Make sure HW does not configure LCD from PHY extended configuration + before SW configuration */ + reg_data = er32(EXTCNF_CTRL); + if ((reg_data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) == 0x0000) { + reg_data = er32(EXTCNF_SIZE); + cnf_size = reg_data & E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH; + cnf_size >>= 16; + if (cnf_size) { + reg_data = er32(EXTCNF_CTRL); + cnf_base_addr = reg_data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER; + /* cnf_base_addr is in DWORD */ + cnf_base_addr >>= 16; + + /* Configure LCD from extended configuration region. */ + ret_val = e1000_init_lcd_from_nvm_config_region(hw, cnf_base_addr, + cnf_size); + if (ret_val) + return ret_val; + } + } + + return E1000_SUCCESS; +} + diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_hw-2.6.31-ethercat.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_hw-2.6.31-ethercat.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,3406 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* e1000_hw.h + * Structures, enums, and macros for the MAC + */ + +#ifndef _E1000_HW_H_ +#define _E1000_HW_H_ + +#include "e1000_osdep-2.6.31-ethercat.h" + + +/* Forward declarations of structures used by the shared code */ +struct e1000_hw; +struct e1000_hw_stats; + +/* Enumerated types specific to the e1000 hardware */ +/* Media Access Controlers */ +typedef enum { + e1000_undefined = 0, + e1000_82542_rev2_0, + e1000_82542_rev2_1, + e1000_82543, + e1000_82544, + e1000_82540, + e1000_82545, + e1000_82545_rev_3, + e1000_82546, + e1000_82546_rev_3, + e1000_82541, + e1000_82541_rev_2, + e1000_82547, + e1000_82547_rev_2, + e1000_82571, + e1000_82572, + e1000_82573, + e1000_80003es2lan, + e1000_ich8lan, + e1000_num_macs +} e1000_mac_type; + +typedef enum { + e1000_eeprom_uninitialized = 0, + e1000_eeprom_spi, + e1000_eeprom_microwire, + e1000_eeprom_flash, + e1000_eeprom_ich8, + e1000_eeprom_none, /* No NVM support */ + e1000_num_eeprom_types +} e1000_eeprom_type; + +/* Media Types */ +typedef enum { + e1000_media_type_copper = 0, + e1000_media_type_fiber = 1, + e1000_media_type_internal_serdes = 2, + e1000_num_media_types +} e1000_media_type; + +typedef enum { + e1000_10_half = 0, + e1000_10_full = 1, + e1000_100_half = 2, + e1000_100_full = 3 +} e1000_speed_duplex_type; + +/* Flow Control Settings */ +typedef enum { + E1000_FC_NONE = 0, + E1000_FC_RX_PAUSE = 1, + E1000_FC_TX_PAUSE = 2, + E1000_FC_FULL = 3, + E1000_FC_DEFAULT = 0xFF +} e1000_fc_type; + +struct e1000_shadow_ram { + u16 eeprom_word; + bool modified; +}; + +/* PCI bus types */ +typedef enum { + e1000_bus_type_unknown = 0, + e1000_bus_type_pci, + e1000_bus_type_pcix, + e1000_bus_type_pci_express, + e1000_bus_type_reserved +} e1000_bus_type; + +/* PCI bus speeds */ +typedef enum { + e1000_bus_speed_unknown = 0, + e1000_bus_speed_33, + e1000_bus_speed_66, + e1000_bus_speed_100, + e1000_bus_speed_120, + e1000_bus_speed_133, + e1000_bus_speed_2500, + e1000_bus_speed_reserved +} e1000_bus_speed; + +/* PCI bus widths */ +typedef enum { + e1000_bus_width_unknown = 0, + /* These PCIe values should literally match the possible return values + * from config space */ + e1000_bus_width_pciex_1 = 1, + e1000_bus_width_pciex_2 = 2, + e1000_bus_width_pciex_4 = 4, + e1000_bus_width_32, + e1000_bus_width_64, + e1000_bus_width_reserved +} e1000_bus_width; + +/* PHY status info structure and supporting enums */ +typedef enum { + e1000_cable_length_50 = 0, + e1000_cable_length_50_80, + e1000_cable_length_80_110, + e1000_cable_length_110_140, + e1000_cable_length_140, + e1000_cable_length_undefined = 0xFF +} e1000_cable_length; + +typedef enum { + e1000_gg_cable_length_60 = 0, + e1000_gg_cable_length_60_115 = 1, + e1000_gg_cable_length_115_150 = 2, + e1000_gg_cable_length_150 = 4 +} e1000_gg_cable_length; + +typedef enum { + e1000_igp_cable_length_10 = 10, + e1000_igp_cable_length_20 = 20, + e1000_igp_cable_length_30 = 30, + e1000_igp_cable_length_40 = 40, + e1000_igp_cable_length_50 = 50, + e1000_igp_cable_length_60 = 60, + e1000_igp_cable_length_70 = 70, + e1000_igp_cable_length_80 = 80, + e1000_igp_cable_length_90 = 90, + e1000_igp_cable_length_100 = 100, + e1000_igp_cable_length_110 = 110, + e1000_igp_cable_length_115 = 115, + e1000_igp_cable_length_120 = 120, + e1000_igp_cable_length_130 = 130, + e1000_igp_cable_length_140 = 140, + e1000_igp_cable_length_150 = 150, + e1000_igp_cable_length_160 = 160, + e1000_igp_cable_length_170 = 170, + e1000_igp_cable_length_180 = 180 +} e1000_igp_cable_length; + +typedef enum { + e1000_10bt_ext_dist_enable_normal = 0, + e1000_10bt_ext_dist_enable_lower, + e1000_10bt_ext_dist_enable_undefined = 0xFF +} e1000_10bt_ext_dist_enable; + +typedef enum { + e1000_rev_polarity_normal = 0, + e1000_rev_polarity_reversed, + e1000_rev_polarity_undefined = 0xFF +} e1000_rev_polarity; + +typedef enum { + e1000_downshift_normal = 0, + e1000_downshift_activated, + e1000_downshift_undefined = 0xFF +} e1000_downshift; + +typedef enum { + e1000_smart_speed_default = 0, + e1000_smart_speed_on, + e1000_smart_speed_off +} e1000_smart_speed; + +typedef enum { + e1000_polarity_reversal_enabled = 0, + e1000_polarity_reversal_disabled, + e1000_polarity_reversal_undefined = 0xFF +} e1000_polarity_reversal; + +typedef enum { + e1000_auto_x_mode_manual_mdi = 0, + e1000_auto_x_mode_manual_mdix, + e1000_auto_x_mode_auto1, + e1000_auto_x_mode_auto2, + e1000_auto_x_mode_undefined = 0xFF +} e1000_auto_x_mode; + +typedef enum { + e1000_1000t_rx_status_not_ok = 0, + e1000_1000t_rx_status_ok, + e1000_1000t_rx_status_undefined = 0xFF +} e1000_1000t_rx_status; + +typedef enum { + e1000_phy_m88 = 0, + e1000_phy_igp, + e1000_phy_igp_2, + e1000_phy_gg82563, + e1000_phy_igp_3, + e1000_phy_ife, + e1000_phy_undefined = 0xFF +} e1000_phy_type; + +typedef enum { + e1000_ms_hw_default = 0, + e1000_ms_force_master, + e1000_ms_force_slave, + e1000_ms_auto +} e1000_ms_type; + +typedef enum { + e1000_ffe_config_enabled = 0, + e1000_ffe_config_active, + e1000_ffe_config_blocked +} e1000_ffe_config; + +typedef enum { + e1000_dsp_config_disabled = 0, + e1000_dsp_config_enabled, + e1000_dsp_config_activated, + e1000_dsp_config_undefined = 0xFF +} e1000_dsp_config; + +struct e1000_phy_info { + e1000_cable_length cable_length; + e1000_10bt_ext_dist_enable extended_10bt_distance; + e1000_rev_polarity cable_polarity; + e1000_downshift downshift; + e1000_polarity_reversal polarity_correction; + e1000_auto_x_mode mdix_mode; + e1000_1000t_rx_status local_rx; + e1000_1000t_rx_status remote_rx; +}; + +struct e1000_phy_stats { + u32 idle_errors; + u32 receive_errors; +}; + +struct e1000_eeprom_info { + e1000_eeprom_type type; + u16 word_size; + u16 opcode_bits; + u16 address_bits; + u16 delay_usec; + u16 page_size; + bool use_eerd; + bool use_eewr; +}; + +/* Flex ASF Information */ +#define E1000_HOST_IF_MAX_SIZE 2048 + +typedef enum { + e1000_byte_align = 0, + e1000_word_align = 1, + e1000_dword_align = 2 +} e1000_align_type; + + + +/* Error Codes */ +#define E1000_SUCCESS 0 +#define E1000_ERR_EEPROM 1 +#define E1000_ERR_PHY 2 +#define E1000_ERR_CONFIG 3 +#define E1000_ERR_PARAM 4 +#define E1000_ERR_MAC_TYPE 5 +#define E1000_ERR_PHY_TYPE 6 +#define E1000_ERR_RESET 9 +#define E1000_ERR_MASTER_REQUESTS_PENDING 10 +#define E1000_ERR_HOST_INTERFACE_COMMAND 11 +#define E1000_BLK_PHY_RESET 12 +#define E1000_ERR_SWFW_SYNC 13 + +#define E1000_BYTE_SWAP_WORD(_value) ((((_value) & 0x00ff) << 8) | \ + (((_value) & 0xff00) >> 8)) + +/* Function prototypes */ +/* Initialization */ +s32 e1000_reset_hw(struct e1000_hw *hw); +s32 e1000_init_hw(struct e1000_hw *hw); +s32 e1000_set_mac_type(struct e1000_hw *hw); +void e1000_set_media_type(struct e1000_hw *hw); + +/* Link Configuration */ +s32 e1000_setup_link(struct e1000_hw *hw); +s32 e1000_phy_setup_autoneg(struct e1000_hw *hw); +void e1000_config_collision_dist(struct e1000_hw *hw); +s32 e1000_check_for_link(struct e1000_hw *hw); +s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed, u16 *duplex); +s32 e1000_force_mac_fc(struct e1000_hw *hw); + +/* PHY */ +s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 *phy_data); +s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 data); +s32 e1000_phy_hw_reset(struct e1000_hw *hw); +s32 e1000_phy_reset(struct e1000_hw *hw); +s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); +s32 e1000_validate_mdi_setting(struct e1000_hw *hw); + +void e1000_phy_powerdown_workaround(struct e1000_hw *hw); + +/* EEPROM Functions */ +s32 e1000_init_eeprom_params(struct e1000_hw *hw); + +/* MNG HOST IF functions */ +u32 e1000_enable_mng_pass_thru(struct e1000_hw *hw); + +#define E1000_MNG_DHCP_TX_PAYLOAD_CMD 64 +#define E1000_HI_MAX_MNG_DATA_LENGTH 0x6F8 /* Host Interface data length */ + +#define E1000_MNG_DHCP_COMMAND_TIMEOUT 10 /* Time in ms to process MNG command */ +#define E1000_MNG_DHCP_COOKIE_OFFSET 0x6F0 /* Cookie offset */ +#define E1000_MNG_DHCP_COOKIE_LENGTH 0x10 /* Cookie length */ +#define E1000_MNG_IAMT_MODE 0x3 +#define E1000_MNG_ICH_IAMT_MODE 0x2 +#define E1000_IAMT_SIGNATURE 0x544D4149 /* Intel(R) Active Management Technology signature */ + +#define E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT 0x1 /* DHCP parsing enabled */ +#define E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT 0x2 /* DHCP parsing enabled */ +#define E1000_VFTA_ENTRY_SHIFT 0x5 +#define E1000_VFTA_ENTRY_MASK 0x7F +#define E1000_VFTA_ENTRY_BIT_SHIFT_MASK 0x1F + +struct e1000_host_mng_command_header { + u8 command_id; + u8 checksum; + u16 reserved1; + u16 reserved2; + u16 command_length; +}; + +struct e1000_host_mng_command_info { + struct e1000_host_mng_command_header command_header; /* Command Head/Command Result Head has 4 bytes */ + u8 command_data[E1000_HI_MAX_MNG_DATA_LENGTH]; /* Command data can length 0..0x658*/ +}; +#ifdef __BIG_ENDIAN +struct e1000_host_mng_dhcp_cookie{ + u32 signature; + u16 vlan_id; + u8 reserved0; + u8 status; + u32 reserved1; + u8 checksum; + u8 reserved3; + u16 reserved2; +}; +#else +struct e1000_host_mng_dhcp_cookie{ + u32 signature; + u8 status; + u8 reserved0; + u16 vlan_id; + u32 reserved1; + u16 reserved2; + u8 reserved3; + u8 checksum; +}; +#endif + +s32 e1000_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, + u16 length); +bool e1000_check_mng_mode(struct e1000_hw *hw); +bool e1000_enable_tx_pkt_filtering(struct e1000_hw *hw); +s32 e1000_read_eeprom(struct e1000_hw *hw, u16 reg, u16 words, u16 *data); +s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw); +s32 e1000_update_eeprom_checksum(struct e1000_hw *hw); +s32 e1000_write_eeprom(struct e1000_hw *hw, u16 reg, u16 words, u16 *data); +s32 e1000_read_mac_addr(struct e1000_hw * hw); + +/* Filters (multicast, vlan, receive) */ +u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 * mc_addr); +void e1000_mta_set(struct e1000_hw *hw, u32 hash_value); +void e1000_rar_set(struct e1000_hw *hw, u8 * mc_addr, u32 rar_index); +void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value); + +/* LED functions */ +s32 e1000_setup_led(struct e1000_hw *hw); +s32 e1000_cleanup_led(struct e1000_hw *hw); +s32 e1000_led_on(struct e1000_hw *hw); +s32 e1000_led_off(struct e1000_hw *hw); +s32 e1000_blink_led_start(struct e1000_hw *hw); + +/* Adaptive IFS Functions */ + +/* Everything else */ +void e1000_reset_adaptive(struct e1000_hw *hw); +void e1000_update_adaptive(struct e1000_hw *hw); +void e1000_tbi_adjust_stats(struct e1000_hw *hw, struct e1000_hw_stats *stats, u32 frame_len, u8 * mac_addr); +void e1000_get_bus_info(struct e1000_hw *hw); +void e1000_pci_set_mwi(struct e1000_hw *hw); +void e1000_pci_clear_mwi(struct e1000_hw *hw); +s32 e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value); +void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc); +int e1000_pcix_get_mmrbc(struct e1000_hw *hw); +/* Port I/O is only supported on 82544 and newer */ +void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value); +s32 e1000_disable_pciex_master(struct e1000_hw *hw); +s32 e1000_check_phy_reset_block(struct e1000_hw *hw); + + +#define E1000_READ_REG_IO(a, reg) \ + e1000_read_reg_io((a), E1000_##reg) +#define E1000_WRITE_REG_IO(a, reg, val) \ + e1000_write_reg_io((a), E1000_##reg, val) + +/* PCI Device IDs */ +#define E1000_DEV_ID_82542 0x1000 +#define E1000_DEV_ID_82543GC_FIBER 0x1001 +#define E1000_DEV_ID_82543GC_COPPER 0x1004 +#define E1000_DEV_ID_82544EI_COPPER 0x1008 +#define E1000_DEV_ID_82544EI_FIBER 0x1009 +#define E1000_DEV_ID_82544GC_COPPER 0x100C +#define E1000_DEV_ID_82544GC_LOM 0x100D +#define E1000_DEV_ID_82540EM 0x100E +#define E1000_DEV_ID_82540EM_LOM 0x1015 +#define E1000_DEV_ID_82540EP_LOM 0x1016 +#define E1000_DEV_ID_82540EP 0x1017 +#define E1000_DEV_ID_82540EP_LP 0x101E +#define E1000_DEV_ID_82545EM_COPPER 0x100F +#define E1000_DEV_ID_82545EM_FIBER 0x1011 +#define E1000_DEV_ID_82545GM_COPPER 0x1026 +#define E1000_DEV_ID_82545GM_FIBER 0x1027 +#define E1000_DEV_ID_82545GM_SERDES 0x1028 +#define E1000_DEV_ID_82546EB_COPPER 0x1010 +#define E1000_DEV_ID_82546EB_FIBER 0x1012 +#define E1000_DEV_ID_82546EB_QUAD_COPPER 0x101D +#define E1000_DEV_ID_82541EI 0x1013 +#define E1000_DEV_ID_82541EI_MOBILE 0x1018 +#define E1000_DEV_ID_82541ER_LOM 0x1014 +#define E1000_DEV_ID_82541ER 0x1078 +#define E1000_DEV_ID_82547GI 0x1075 +#define E1000_DEV_ID_82541GI 0x1076 +#define E1000_DEV_ID_82541GI_MOBILE 0x1077 +#define E1000_DEV_ID_82541GI_LF 0x107C +#define E1000_DEV_ID_82546GB_COPPER 0x1079 +#define E1000_DEV_ID_82546GB_FIBER 0x107A +#define E1000_DEV_ID_82546GB_SERDES 0x107B +#define E1000_DEV_ID_82546GB_PCIE 0x108A +#define E1000_DEV_ID_82546GB_QUAD_COPPER 0x1099 +#define E1000_DEV_ID_82547EI 0x1019 +#define E1000_DEV_ID_82547EI_MOBILE 0x101A +#define E1000_DEV_ID_82571EB_COPPER 0x105E +#define E1000_DEV_ID_82571EB_FIBER 0x105F +#define E1000_DEV_ID_82571EB_SERDES 0x1060 +#define E1000_DEV_ID_82571EB_QUAD_COPPER 0x10A4 +#define E1000_DEV_ID_82571PT_QUAD_COPPER 0x10D5 +#define E1000_DEV_ID_82571EB_QUAD_FIBER 0x10A5 +#define E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE 0x10BC +#define E1000_DEV_ID_82571EB_SERDES_DUAL 0x10D9 +#define E1000_DEV_ID_82571EB_SERDES_QUAD 0x10DA +#define E1000_DEV_ID_82572EI_COPPER 0x107D +#define E1000_DEV_ID_82572EI_FIBER 0x107E +#define E1000_DEV_ID_82572EI_SERDES 0x107F +#define E1000_DEV_ID_82572EI 0x10B9 +#define E1000_DEV_ID_82573E 0x108B +#define E1000_DEV_ID_82573E_IAMT 0x108C +#define E1000_DEV_ID_82573L 0x109A +#define E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3 0x10B5 +#define E1000_DEV_ID_80003ES2LAN_COPPER_DPT 0x1096 +#define E1000_DEV_ID_80003ES2LAN_SERDES_DPT 0x1098 +#define E1000_DEV_ID_80003ES2LAN_COPPER_SPT 0x10BA +#define E1000_DEV_ID_80003ES2LAN_SERDES_SPT 0x10BB + +#define E1000_DEV_ID_ICH8_IGP_M_AMT 0x1049 +#define E1000_DEV_ID_ICH8_IGP_AMT 0x104A +#define E1000_DEV_ID_ICH8_IGP_C 0x104B +#define E1000_DEV_ID_ICH8_IFE 0x104C +#define E1000_DEV_ID_ICH8_IFE_GT 0x10C4 +#define E1000_DEV_ID_ICH8_IFE_G 0x10C5 +#define E1000_DEV_ID_ICH8_IGP_M 0x104D + + +#define NODE_ADDRESS_SIZE 6 +#define ETH_LENGTH_OF_ADDRESS 6 + +/* MAC decode size is 128K - This is the size of BAR0 */ +#define MAC_DECODE_SIZE (128 * 1024) + +#define E1000_82542_2_0_REV_ID 2 +#define E1000_82542_2_1_REV_ID 3 +#define E1000_REVISION_0 0 +#define E1000_REVISION_1 1 +#define E1000_REVISION_2 2 +#define E1000_REVISION_3 3 + +#define SPEED_10 10 +#define SPEED_100 100 +#define SPEED_1000 1000 +#define HALF_DUPLEX 1 +#define FULL_DUPLEX 2 + +/* The sizes (in bytes) of a ethernet packet */ +#define ENET_HEADER_SIZE 14 +#define MAXIMUM_ETHERNET_FRAME_SIZE 1518 /* With FCS */ +#define MINIMUM_ETHERNET_FRAME_SIZE 64 /* With FCS */ +#define ETHERNET_FCS_SIZE 4 +#define MAXIMUM_ETHERNET_PACKET_SIZE \ + (MAXIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE) +#define MINIMUM_ETHERNET_PACKET_SIZE \ + (MINIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE) +#define CRC_LENGTH ETHERNET_FCS_SIZE +#define MAX_JUMBO_FRAME_SIZE 0x3F00 + + +/* 802.1q VLAN Packet Sizes */ +#define VLAN_TAG_SIZE 4 /* 802.3ac tag (not DMAed) */ + +/* Ethertype field values */ +#define ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.3ac packet */ +#define ETHERNET_IP_TYPE 0x0800 /* IP packets */ +#define ETHERNET_ARP_TYPE 0x0806 /* Address Resolution Protocol (ARP) */ + +/* Packet Header defines */ +#define IP_PROTOCOL_TCP 6 +#define IP_PROTOCOL_UDP 0x11 + +/* This defines the bits that are set in the Interrupt Mask + * Set/Read Register. Each bit is documented below: + * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0) + * o RXSEQ = Receive Sequence Error + */ +#define POLL_IMS_ENABLE_MASK ( \ + E1000_IMS_RXDMT0 | \ + E1000_IMS_RXSEQ) + +/* This defines the bits that are set in the Interrupt Mask + * Set/Read Register. Each bit is documented below: + * o RXT0 = Receiver Timer Interrupt (ring 0) + * o TXDW = Transmit Descriptor Written Back + * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0) + * o RXSEQ = Receive Sequence Error + * o LSC = Link Status Change + */ +#define IMS_ENABLE_MASK ( \ + E1000_IMS_RXT0 | \ + E1000_IMS_TXDW | \ + E1000_IMS_RXDMT0 | \ + E1000_IMS_RXSEQ | \ + E1000_IMS_LSC) + +/* Additional interrupts need to be handled for e1000_ich8lan: + DSW = The FW changed the status of the DISSW bit in FWSM + PHYINT = The LAN connected device generates an interrupt + EPRST = Manageability reset event */ +#define IMS_ICH8LAN_ENABLE_MASK (\ + E1000_IMS_DSW | \ + E1000_IMS_PHYINT | \ + E1000_IMS_EPRST) + +/* Number of high/low register pairs in the RAR. The RAR (Receive Address + * Registers) holds the directed and multicast addresses that we monitor. We + * reserve one of these spots for our directed address, allowing us room for + * E1000_RAR_ENTRIES - 1 multicast addresses. + */ +#define E1000_RAR_ENTRIES 15 + +#define E1000_RAR_ENTRIES_ICH8LAN 6 + +#define MIN_NUMBER_OF_DESCRIPTORS 8 +#define MAX_NUMBER_OF_DESCRIPTORS 0xFFF8 + +/* Receive Descriptor */ +struct e1000_rx_desc { + __le64 buffer_addr; /* Address of the descriptor's data buffer */ + __le16 length; /* Length of data DMAed into data buffer */ + __le16 csum; /* Packet checksum */ + u8 status; /* Descriptor status */ + u8 errors; /* Descriptor Errors */ + __le16 special; +}; + +/* Receive Descriptor - Extended */ +union e1000_rx_desc_extended { + struct { + __le64 buffer_addr; + __le64 reserved; + } read; + struct { + struct { + __le32 mrq; /* Multiple Rx Queues */ + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length; + __le16 vlan; /* VLAN tag */ + } upper; + } wb; /* writeback */ +}; + +#define MAX_PS_BUFFERS 4 +/* Receive Descriptor - Packet Split */ +union e1000_rx_desc_packet_split { + struct { + /* one buffer for protocol header(s), three data buffers */ + __le64 buffer_addr[MAX_PS_BUFFERS]; + } read; + struct { + struct { + __le32 mrq; /* Multiple Rx Queues */ + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length0; /* length of buffer 0 */ + __le16 vlan; /* VLAN tag */ + } middle; + struct { + __le16 header_status; + __le16 length[3]; /* length of buffers 1-3 */ + } upper; + __le64 reserved; + } wb; /* writeback */ +}; + +/* Receive Decriptor bit definitions */ +#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */ +#define E1000_RXD_STAT_EOP 0x02 /* End of Packet */ +#define E1000_RXD_STAT_IXSM 0x04 /* Ignore checksum */ +#define E1000_RXD_STAT_VP 0x08 /* IEEE VLAN Packet */ +#define E1000_RXD_STAT_UDPCS 0x10 /* UDP xsum caculated */ +#define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */ +#define E1000_RXD_STAT_IPCS 0x40 /* IP xsum calculated */ +#define E1000_RXD_STAT_PIF 0x80 /* passed in-exact filter */ +#define E1000_RXD_STAT_IPIDV 0x200 /* IP identification valid */ +#define E1000_RXD_STAT_UDPV 0x400 /* Valid UDP checksum */ +#define E1000_RXD_STAT_ACK 0x8000 /* ACK Packet indication */ +#define E1000_RXD_ERR_CE 0x01 /* CRC Error */ +#define E1000_RXD_ERR_SE 0x02 /* Symbol Error */ +#define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */ +#define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */ +#define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */ +#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */ +#define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */ +#define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */ +#define E1000_RXD_SPC_PRI_MASK 0xE000 /* Priority is in upper 3 bits */ +#define E1000_RXD_SPC_PRI_SHIFT 13 +#define E1000_RXD_SPC_CFI_MASK 0x1000 /* CFI is bit 12 */ +#define E1000_RXD_SPC_CFI_SHIFT 12 + +#define E1000_RXDEXT_STATERR_CE 0x01000000 +#define E1000_RXDEXT_STATERR_SE 0x02000000 +#define E1000_RXDEXT_STATERR_SEQ 0x04000000 +#define E1000_RXDEXT_STATERR_CXE 0x10000000 +#define E1000_RXDEXT_STATERR_TCPE 0x20000000 +#define E1000_RXDEXT_STATERR_IPE 0x40000000 +#define E1000_RXDEXT_STATERR_RXE 0x80000000 + +#define E1000_RXDPS_HDRSTAT_HDRSP 0x00008000 +#define E1000_RXDPS_HDRSTAT_HDRLEN_MASK 0x000003FF + +/* mask to determine if packets should be dropped due to frame errors */ +#define E1000_RXD_ERR_FRAME_ERR_MASK ( \ + E1000_RXD_ERR_CE | \ + E1000_RXD_ERR_SE | \ + E1000_RXD_ERR_SEQ | \ + E1000_RXD_ERR_CXE | \ + E1000_RXD_ERR_RXE) + + +/* Same mask, but for extended and packet split descriptors */ +#define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \ + E1000_RXDEXT_STATERR_CE | \ + E1000_RXDEXT_STATERR_SE | \ + E1000_RXDEXT_STATERR_SEQ | \ + E1000_RXDEXT_STATERR_CXE | \ + E1000_RXDEXT_STATERR_RXE) + + +/* Transmit Descriptor */ +struct e1000_tx_desc { + __le64 buffer_addr; /* Address of the descriptor's data buffer */ + union { + __le32 data; + struct { + __le16 length; /* Data buffer length */ + u8 cso; /* Checksum offset */ + u8 cmd; /* Descriptor control */ + } flags; + } lower; + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 css; /* Checksum start */ + __le16 special; + } fields; + } upper; +}; + +/* Transmit Descriptor bit definitions */ +#define E1000_TXD_DTYP_D 0x00100000 /* Data Descriptor */ +#define E1000_TXD_DTYP_C 0x00000000 /* Context Descriptor */ +#define E1000_TXD_POPTS_IXSM 0x01 /* Insert IP checksum */ +#define E1000_TXD_POPTS_TXSM 0x02 /* Insert TCP/UDP checksum */ +#define E1000_TXD_CMD_EOP 0x01000000 /* End of Packet */ +#define E1000_TXD_CMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */ +#define E1000_TXD_CMD_IC 0x04000000 /* Insert Checksum */ +#define E1000_TXD_CMD_RS 0x08000000 /* Report Status */ +#define E1000_TXD_CMD_RPS 0x10000000 /* Report Packet Sent */ +#define E1000_TXD_CMD_DEXT 0x20000000 /* Descriptor extension (0 = legacy) */ +#define E1000_TXD_CMD_VLE 0x40000000 /* Add VLAN tag */ +#define E1000_TXD_CMD_IDE 0x80000000 /* Enable Tidv register */ +#define E1000_TXD_STAT_DD 0x00000001 /* Descriptor Done */ +#define E1000_TXD_STAT_EC 0x00000002 /* Excess Collisions */ +#define E1000_TXD_STAT_LC 0x00000004 /* Late Collisions */ +#define E1000_TXD_STAT_TU 0x00000008 /* Transmit underrun */ +#define E1000_TXD_CMD_TCP 0x01000000 /* TCP packet */ +#define E1000_TXD_CMD_IP 0x02000000 /* IP packet */ +#define E1000_TXD_CMD_TSE 0x04000000 /* TCP Seg enable */ +#define E1000_TXD_STAT_TC 0x00000004 /* Tx Underrun */ + +/* Offload Context Descriptor */ +struct e1000_context_desc { + union { + __le32 ip_config; + struct { + u8 ipcss; /* IP checksum start */ + u8 ipcso; /* IP checksum offset */ + __le16 ipcse; /* IP checksum end */ + } ip_fields; + } lower_setup; + union { + __le32 tcp_config; + struct { + u8 tucss; /* TCP checksum start */ + u8 tucso; /* TCP checksum offset */ + __le16 tucse; /* TCP checksum end */ + } tcp_fields; + } upper_setup; + __le32 cmd_and_length; /* */ + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 hdr_len; /* Header length */ + __le16 mss; /* Maximum segment size */ + } fields; + } tcp_seg_setup; +}; + +/* Offload data descriptor */ +struct e1000_data_desc { + __le64 buffer_addr; /* Address of the descriptor's buffer address */ + union { + __le32 data; + struct { + __le16 length; /* Data buffer length */ + u8 typ_len_ext; /* */ + u8 cmd; /* */ + } flags; + } lower; + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 popts; /* Packet Options */ + __le16 special; /* */ + } fields; + } upper; +}; + +/* Filters */ +#define E1000_NUM_UNICAST 16 /* Unicast filter entries */ +#define E1000_MC_TBL_SIZE 128 /* Multicast Filter Table (4096 bits) */ +#define E1000_VLAN_FILTER_TBL_SIZE 128 /* VLAN Filter Table (4096 bits) */ + +#define E1000_NUM_UNICAST_ICH8LAN 7 +#define E1000_MC_TBL_SIZE_ICH8LAN 32 + + +/* Receive Address Register */ +struct e1000_rar { + volatile __le32 low; /* receive address low */ + volatile __le32 high; /* receive address high */ +}; + +/* Number of entries in the Multicast Table Array (MTA). */ +#define E1000_NUM_MTA_REGISTERS 128 +#define E1000_NUM_MTA_REGISTERS_ICH8LAN 32 + +/* IPv4 Address Table Entry */ +struct e1000_ipv4_at_entry { + volatile u32 ipv4_addr; /* IP Address (RW) */ + volatile u32 reserved; +}; + +/* Four wakeup IP addresses are supported */ +#define E1000_WAKEUP_IP_ADDRESS_COUNT_MAX 4 +#define E1000_IP4AT_SIZE E1000_WAKEUP_IP_ADDRESS_COUNT_MAX +#define E1000_IP4AT_SIZE_ICH8LAN 3 +#define E1000_IP6AT_SIZE 1 + +/* IPv6 Address Table Entry */ +struct e1000_ipv6_at_entry { + volatile u8 ipv6_addr[16]; +}; + +/* Flexible Filter Length Table Entry */ +struct e1000_fflt_entry { + volatile u32 length; /* Flexible Filter Length (RW) */ + volatile u32 reserved; +}; + +/* Flexible Filter Mask Table Entry */ +struct e1000_ffmt_entry { + volatile u32 mask; /* Flexible Filter Mask (RW) */ + volatile u32 reserved; +}; + +/* Flexible Filter Value Table Entry */ +struct e1000_ffvt_entry { + volatile u32 value; /* Flexible Filter Value (RW) */ + volatile u32 reserved; +}; + +/* Four Flexible Filters are supported */ +#define E1000_FLEXIBLE_FILTER_COUNT_MAX 4 + +/* Each Flexible Filter is at most 128 (0x80) bytes in length */ +#define E1000_FLEXIBLE_FILTER_SIZE_MAX 128 + +#define E1000_FFLT_SIZE E1000_FLEXIBLE_FILTER_COUNT_MAX +#define E1000_FFMT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX +#define E1000_FFVT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX + +#define E1000_DISABLE_SERDES_LOOPBACK 0x0400 + +/* Register Set. (82543, 82544) + * + * Registers are defined to be 32 bits and should be accessed as 32 bit values. + * These registers are physically located on the NIC, but are mapped into the + * host memory address space. + * + * RW - register is both readable and writable + * RO - register is read only + * WO - register is write only + * R/clr - register is read only and is cleared when read + * A - register array + */ +#define E1000_CTRL 0x00000 /* Device Control - RW */ +#define E1000_CTRL_DUP 0x00004 /* Device Control Duplicate (Shadow) - RW */ +#define E1000_STATUS 0x00008 /* Device Status - RO */ +#define E1000_EECD 0x00010 /* EEPROM/Flash Control - RW */ +#define E1000_EERD 0x00014 /* EEPROM Read - RW */ +#define E1000_CTRL_EXT 0x00018 /* Extended Device Control - RW */ +#define E1000_FLA 0x0001C /* Flash Access - RW */ +#define E1000_MDIC 0x00020 /* MDI Control - RW */ +#define E1000_SCTL 0x00024 /* SerDes Control - RW */ +#define E1000_FEXTNVM 0x00028 /* Future Extended NVM register */ +#define E1000_FCAL 0x00028 /* Flow Control Address Low - RW */ +#define E1000_FCAH 0x0002C /* Flow Control Address High -RW */ +#define E1000_FCT 0x00030 /* Flow Control Type - RW */ +#define E1000_VET 0x00038 /* VLAN Ether Type - RW */ +#define E1000_ICR 0x000C0 /* Interrupt Cause Read - R/clr */ +#define E1000_ITR 0x000C4 /* Interrupt Throttling Rate - RW */ +#define E1000_ICS 0x000C8 /* Interrupt Cause Set - WO */ +#define E1000_IMS 0x000D0 /* Interrupt Mask Set - RW */ +#define E1000_IMC 0x000D8 /* Interrupt Mask Clear - WO */ +#define E1000_IAM 0x000E0 /* Interrupt Acknowledge Auto Mask */ +#define E1000_RCTL 0x00100 /* RX Control - RW */ +#define E1000_RDTR1 0x02820 /* RX Delay Timer (1) - RW */ +#define E1000_RDBAL1 0x02900 /* RX Descriptor Base Address Low (1) - RW */ +#define E1000_RDBAH1 0x02904 /* RX Descriptor Base Address High (1) - RW */ +#define E1000_RDLEN1 0x02908 /* RX Descriptor Length (1) - RW */ +#define E1000_RDH1 0x02910 /* RX Descriptor Head (1) - RW */ +#define E1000_RDT1 0x02918 /* RX Descriptor Tail (1) - RW */ +#define E1000_FCTTV 0x00170 /* Flow Control Transmit Timer Value - RW */ +#define E1000_TXCW 0x00178 /* TX Configuration Word - RW */ +#define E1000_RXCW 0x00180 /* RX Configuration Word - RO */ +#define E1000_TCTL 0x00400 /* TX Control - RW */ +#define E1000_TCTL_EXT 0x00404 /* Extended TX Control - RW */ +#define E1000_TIPG 0x00410 /* TX Inter-packet gap -RW */ +#define E1000_TBT 0x00448 /* TX Burst Timer - RW */ +#define E1000_AIT 0x00458 /* Adaptive Interframe Spacing Throttle - RW */ +#define E1000_LEDCTL 0x00E00 /* LED Control - RW */ +#define E1000_EXTCNF_CTRL 0x00F00 /* Extended Configuration Control */ +#define E1000_EXTCNF_SIZE 0x00F08 /* Extended Configuration Size */ +#define E1000_PHY_CTRL 0x00F10 /* PHY Control Register in CSR */ +#define FEXTNVM_SW_CONFIG 0x0001 +#define E1000_PBA 0x01000 /* Packet Buffer Allocation - RW */ +#define E1000_PBS 0x01008 /* Packet Buffer Size */ +#define E1000_EEMNGCTL 0x01010 /* MNG EEprom Control */ +#define E1000_FLASH_UPDATES 1000 +#define E1000_EEARBC 0x01024 /* EEPROM Auto Read Bus Control */ +#define E1000_FLASHT 0x01028 /* FLASH Timer Register */ +#define E1000_EEWR 0x0102C /* EEPROM Write Register - RW */ +#define E1000_FLSWCTL 0x01030 /* FLASH control register */ +#define E1000_FLSWDATA 0x01034 /* FLASH data register */ +#define E1000_FLSWCNT 0x01038 /* FLASH Access Counter */ +#define E1000_FLOP 0x0103C /* FLASH Opcode Register */ +#define E1000_ERT 0x02008 /* Early Rx Threshold - RW */ +#define E1000_FCRTL 0x02160 /* Flow Control Receive Threshold Low - RW */ +#define E1000_FCRTH 0x02168 /* Flow Control Receive Threshold High - RW */ +#define E1000_PSRCTL 0x02170 /* Packet Split Receive Control - RW */ +#define E1000_RDBAL 0x02800 /* RX Descriptor Base Address Low - RW */ +#define E1000_RDBAH 0x02804 /* RX Descriptor Base Address High - RW */ +#define E1000_RDLEN 0x02808 /* RX Descriptor Length - RW */ +#define E1000_RDH 0x02810 /* RX Descriptor Head - RW */ +#define E1000_RDT 0x02818 /* RX Descriptor Tail - RW */ +#define E1000_RDTR 0x02820 /* RX Delay Timer - RW */ +#define E1000_RDBAL0 E1000_RDBAL /* RX Desc Base Address Low (0) - RW */ +#define E1000_RDBAH0 E1000_RDBAH /* RX Desc Base Address High (0) - RW */ +#define E1000_RDLEN0 E1000_RDLEN /* RX Desc Length (0) - RW */ +#define E1000_RDH0 E1000_RDH /* RX Desc Head (0) - RW */ +#define E1000_RDT0 E1000_RDT /* RX Desc Tail (0) - RW */ +#define E1000_RDTR0 E1000_RDTR /* RX Delay Timer (0) - RW */ +#define E1000_RXDCTL 0x02828 /* RX Descriptor Control queue 0 - RW */ +#define E1000_RXDCTL1 0x02928 /* RX Descriptor Control queue 1 - RW */ +#define E1000_RADV 0x0282C /* RX Interrupt Absolute Delay Timer - RW */ +#define E1000_RSRPD 0x02C00 /* RX Small Packet Detect - RW */ +#define E1000_RAID 0x02C08 /* Receive Ack Interrupt Delay - RW */ +#define E1000_TXDMAC 0x03000 /* TX DMA Control - RW */ +#define E1000_KABGTXD 0x03004 /* AFE Band Gap Transmit Ref Data */ +#define E1000_TDFH 0x03410 /* TX Data FIFO Head - RW */ +#define E1000_TDFT 0x03418 /* TX Data FIFO Tail - RW */ +#define E1000_TDFHS 0x03420 /* TX Data FIFO Head Saved - RW */ +#define E1000_TDFTS 0x03428 /* TX Data FIFO Tail Saved - RW */ +#define E1000_TDFPC 0x03430 /* TX Data FIFO Packet Count - RW */ +#define E1000_TDBAL 0x03800 /* TX Descriptor Base Address Low - RW */ +#define E1000_TDBAH 0x03804 /* TX Descriptor Base Address High - RW */ +#define E1000_TDLEN 0x03808 /* TX Descriptor Length - RW */ +#define E1000_TDH 0x03810 /* TX Descriptor Head - RW */ +#define E1000_TDT 0x03818 /* TX Descripotr Tail - RW */ +#define E1000_TIDV 0x03820 /* TX Interrupt Delay Value - RW */ +#define E1000_TXDCTL 0x03828 /* TX Descriptor Control - RW */ +#define E1000_TADV 0x0382C /* TX Interrupt Absolute Delay Val - RW */ +#define E1000_TSPMT 0x03830 /* TCP Segmentation PAD & Min Threshold - RW */ +#define E1000_TARC0 0x03840 /* TX Arbitration Count (0) */ +#define E1000_TDBAL1 0x03900 /* TX Desc Base Address Low (1) - RW */ +#define E1000_TDBAH1 0x03904 /* TX Desc Base Address High (1) - RW */ +#define E1000_TDLEN1 0x03908 /* TX Desc Length (1) - RW */ +#define E1000_TDH1 0x03910 /* TX Desc Head (1) - RW */ +#define E1000_TDT1 0x03918 /* TX Desc Tail (1) - RW */ +#define E1000_TXDCTL1 0x03928 /* TX Descriptor Control (1) - RW */ +#define E1000_TARC1 0x03940 /* TX Arbitration Count (1) */ +#define E1000_CRCERRS 0x04000 /* CRC Error Count - R/clr */ +#define E1000_ALGNERRC 0x04004 /* Alignment Error Count - R/clr */ +#define E1000_SYMERRS 0x04008 /* Symbol Error Count - R/clr */ +#define E1000_RXERRC 0x0400C /* Receive Error Count - R/clr */ +#define E1000_MPC 0x04010 /* Missed Packet Count - R/clr */ +#define E1000_SCC 0x04014 /* Single Collision Count - R/clr */ +#define E1000_ECOL 0x04018 /* Excessive Collision Count - R/clr */ +#define E1000_MCC 0x0401C /* Multiple Collision Count - R/clr */ +#define E1000_LATECOL 0x04020 /* Late Collision Count - R/clr */ +#define E1000_COLC 0x04028 /* Collision Count - R/clr */ +#define E1000_DC 0x04030 /* Defer Count - R/clr */ +#define E1000_TNCRS 0x04034 /* TX-No CRS - R/clr */ +#define E1000_SEC 0x04038 /* Sequence Error Count - R/clr */ +#define E1000_CEXTERR 0x0403C /* Carrier Extension Error Count - R/clr */ +#define E1000_RLEC 0x04040 /* Receive Length Error Count - R/clr */ +#define E1000_XONRXC 0x04048 /* XON RX Count - R/clr */ +#define E1000_XONTXC 0x0404C /* XON TX Count - R/clr */ +#define E1000_XOFFRXC 0x04050 /* XOFF RX Count - R/clr */ +#define E1000_XOFFTXC 0x04054 /* XOFF TX Count - R/clr */ +#define E1000_FCRUC 0x04058 /* Flow Control RX Unsupported Count- R/clr */ +#define E1000_PRC64 0x0405C /* Packets RX (64 bytes) - R/clr */ +#define E1000_PRC127 0x04060 /* Packets RX (65-127 bytes) - R/clr */ +#define E1000_PRC255 0x04064 /* Packets RX (128-255 bytes) - R/clr */ +#define E1000_PRC511 0x04068 /* Packets RX (255-511 bytes) - R/clr */ +#define E1000_PRC1023 0x0406C /* Packets RX (512-1023 bytes) - R/clr */ +#define E1000_PRC1522 0x04070 /* Packets RX (1024-1522 bytes) - R/clr */ +#define E1000_GPRC 0x04074 /* Good Packets RX Count - R/clr */ +#define E1000_BPRC 0x04078 /* Broadcast Packets RX Count - R/clr */ +#define E1000_MPRC 0x0407C /* Multicast Packets RX Count - R/clr */ +#define E1000_GPTC 0x04080 /* Good Packets TX Count - R/clr */ +#define E1000_GORCL 0x04088 /* Good Octets RX Count Low - R/clr */ +#define E1000_GORCH 0x0408C /* Good Octets RX Count High - R/clr */ +#define E1000_GOTCL 0x04090 /* Good Octets TX Count Low - R/clr */ +#define E1000_GOTCH 0x04094 /* Good Octets TX Count High - R/clr */ +#define E1000_RNBC 0x040A0 /* RX No Buffers Count - R/clr */ +#define E1000_RUC 0x040A4 /* RX Undersize Count - R/clr */ +#define E1000_RFC 0x040A8 /* RX Fragment Count - R/clr */ +#define E1000_ROC 0x040AC /* RX Oversize Count - R/clr */ +#define E1000_RJC 0x040B0 /* RX Jabber Count - R/clr */ +#define E1000_MGTPRC 0x040B4 /* Management Packets RX Count - R/clr */ +#define E1000_MGTPDC 0x040B8 /* Management Packets Dropped Count - R/clr */ +#define E1000_MGTPTC 0x040BC /* Management Packets TX Count - R/clr */ +#define E1000_TORL 0x040C0 /* Total Octets RX Low - R/clr */ +#define E1000_TORH 0x040C4 /* Total Octets RX High - R/clr */ +#define E1000_TOTL 0x040C8 /* Total Octets TX Low - R/clr */ +#define E1000_TOTH 0x040CC /* Total Octets TX High - R/clr */ +#define E1000_TPR 0x040D0 /* Total Packets RX - R/clr */ +#define E1000_TPT 0x040D4 /* Total Packets TX - R/clr */ +#define E1000_PTC64 0x040D8 /* Packets TX (64 bytes) - R/clr */ +#define E1000_PTC127 0x040DC /* Packets TX (65-127 bytes) - R/clr */ +#define E1000_PTC255 0x040E0 /* Packets TX (128-255 bytes) - R/clr */ +#define E1000_PTC511 0x040E4 /* Packets TX (256-511 bytes) - R/clr */ +#define E1000_PTC1023 0x040E8 /* Packets TX (512-1023 bytes) - R/clr */ +#define E1000_PTC1522 0x040EC /* Packets TX (1024-1522 Bytes) - R/clr */ +#define E1000_MPTC 0x040F0 /* Multicast Packets TX Count - R/clr */ +#define E1000_BPTC 0x040F4 /* Broadcast Packets TX Count - R/clr */ +#define E1000_TSCTC 0x040F8 /* TCP Segmentation Context TX - R/clr */ +#define E1000_TSCTFC 0x040FC /* TCP Segmentation Context TX Fail - R/clr */ +#define E1000_IAC 0x04100 /* Interrupt Assertion Count */ +#define E1000_ICRXPTC 0x04104 /* Interrupt Cause Rx Packet Timer Expire Count */ +#define E1000_ICRXATC 0x04108 /* Interrupt Cause Rx Absolute Timer Expire Count */ +#define E1000_ICTXPTC 0x0410C /* Interrupt Cause Tx Packet Timer Expire Count */ +#define E1000_ICTXATC 0x04110 /* Interrupt Cause Tx Absolute Timer Expire Count */ +#define E1000_ICTXQEC 0x04118 /* Interrupt Cause Tx Queue Empty Count */ +#define E1000_ICTXQMTC 0x0411C /* Interrupt Cause Tx Queue Minimum Threshold Count */ +#define E1000_ICRXDMTC 0x04120 /* Interrupt Cause Rx Descriptor Minimum Threshold Count */ +#define E1000_ICRXOC 0x04124 /* Interrupt Cause Receiver Overrun Count */ +#define E1000_RXCSUM 0x05000 /* RX Checksum Control - RW */ +#define E1000_RFCTL 0x05008 /* Receive Filter Control*/ +#define E1000_MTA 0x05200 /* Multicast Table Array - RW Array */ +#define E1000_RA 0x05400 /* Receive Address - RW Array */ +#define E1000_VFTA 0x05600 /* VLAN Filter Table Array - RW Array */ +#define E1000_WUC 0x05800 /* Wakeup Control - RW */ +#define E1000_WUFC 0x05808 /* Wakeup Filter Control - RW */ +#define E1000_WUS 0x05810 /* Wakeup Status - RO */ +#define E1000_MANC 0x05820 /* Management Control - RW */ +#define E1000_IPAV 0x05838 /* IP Address Valid - RW */ +#define E1000_IP4AT 0x05840 /* IPv4 Address Table - RW Array */ +#define E1000_IP6AT 0x05880 /* IPv6 Address Table - RW Array */ +#define E1000_WUPL 0x05900 /* Wakeup Packet Length - RW */ +#define E1000_WUPM 0x05A00 /* Wakeup Packet Memory - RO A */ +#define E1000_FFLT 0x05F00 /* Flexible Filter Length Table - RW Array */ +#define E1000_HOST_IF 0x08800 /* Host Interface */ +#define E1000_FFMT 0x09000 /* Flexible Filter Mask Table - RW Array */ +#define E1000_FFVT 0x09800 /* Flexible Filter Value Table - RW Array */ + +#define E1000_KUMCTRLSTA 0x00034 /* MAC-PHY interface - RW */ +#define E1000_MDPHYA 0x0003C /* PHY address - RW */ +#define E1000_MANC2H 0x05860 /* Managment Control To Host - RW */ +#define E1000_SW_FW_SYNC 0x05B5C /* Software-Firmware Synchronization - RW */ + +#define E1000_GCR 0x05B00 /* PCI-Ex Control */ +#define E1000_GSCL_1 0x05B10 /* PCI-Ex Statistic Control #1 */ +#define E1000_GSCL_2 0x05B14 /* PCI-Ex Statistic Control #2 */ +#define E1000_GSCL_3 0x05B18 /* PCI-Ex Statistic Control #3 */ +#define E1000_GSCL_4 0x05B1C /* PCI-Ex Statistic Control #4 */ +#define E1000_FACTPS 0x05B30 /* Function Active and Power State to MNG */ +#define E1000_SWSM 0x05B50 /* SW Semaphore */ +#define E1000_FWSM 0x05B54 /* FW Semaphore */ +#define E1000_FFLT_DBG 0x05F04 /* Debug Register */ +#define E1000_HICR 0x08F00 /* Host Inteface Control */ + +/* RSS registers */ +#define E1000_CPUVEC 0x02C10 /* CPU Vector Register - RW */ +#define E1000_MRQC 0x05818 /* Multiple Receive Control - RW */ +#define E1000_RETA 0x05C00 /* Redirection Table - RW Array */ +#define E1000_RSSRK 0x05C80 /* RSS Random Key - RW Array */ +#define E1000_RSSIM 0x05864 /* RSS Interrupt Mask */ +#define E1000_RSSIR 0x05868 /* RSS Interrupt Request */ +/* Register Set (82542) + * + * Some of the 82542 registers are located at different offsets than they are + * in more current versions of the 8254x. Despite the difference in location, + * the registers function in the same manner. + */ +#define E1000_82542_CTRL E1000_CTRL +#define E1000_82542_CTRL_DUP E1000_CTRL_DUP +#define E1000_82542_STATUS E1000_STATUS +#define E1000_82542_EECD E1000_EECD +#define E1000_82542_EERD E1000_EERD +#define E1000_82542_CTRL_EXT E1000_CTRL_EXT +#define E1000_82542_FLA E1000_FLA +#define E1000_82542_MDIC E1000_MDIC +#define E1000_82542_SCTL E1000_SCTL +#define E1000_82542_FEXTNVM E1000_FEXTNVM +#define E1000_82542_FCAL E1000_FCAL +#define E1000_82542_FCAH E1000_FCAH +#define E1000_82542_FCT E1000_FCT +#define E1000_82542_VET E1000_VET +#define E1000_82542_RA 0x00040 +#define E1000_82542_ICR E1000_ICR +#define E1000_82542_ITR E1000_ITR +#define E1000_82542_ICS E1000_ICS +#define E1000_82542_IMS E1000_IMS +#define E1000_82542_IMC E1000_IMC +#define E1000_82542_RCTL E1000_RCTL +#define E1000_82542_RDTR 0x00108 +#define E1000_82542_RDBAL 0x00110 +#define E1000_82542_RDBAH 0x00114 +#define E1000_82542_RDLEN 0x00118 +#define E1000_82542_RDH 0x00120 +#define E1000_82542_RDT 0x00128 +#define E1000_82542_RDTR0 E1000_82542_RDTR +#define E1000_82542_RDBAL0 E1000_82542_RDBAL +#define E1000_82542_RDBAH0 E1000_82542_RDBAH +#define E1000_82542_RDLEN0 E1000_82542_RDLEN +#define E1000_82542_RDH0 E1000_82542_RDH +#define E1000_82542_RDT0 E1000_82542_RDT +#define E1000_82542_SRRCTL(_n) (0x280C + ((_n) << 8)) /* Split and Replication + * RX Control - RW */ +#define E1000_82542_DCA_RXCTRL(_n) (0x02814 + ((_n) << 8)) +#define E1000_82542_RDBAH3 0x02B04 /* RX Desc Base High Queue 3 - RW */ +#define E1000_82542_RDBAL3 0x02B00 /* RX Desc Low Queue 3 - RW */ +#define E1000_82542_RDLEN3 0x02B08 /* RX Desc Length Queue 3 - RW */ +#define E1000_82542_RDH3 0x02B10 /* RX Desc Head Queue 3 - RW */ +#define E1000_82542_RDT3 0x02B18 /* RX Desc Tail Queue 3 - RW */ +#define E1000_82542_RDBAL2 0x02A00 /* RX Desc Base Low Queue 2 - RW */ +#define E1000_82542_RDBAH2 0x02A04 /* RX Desc Base High Queue 2 - RW */ +#define E1000_82542_RDLEN2 0x02A08 /* RX Desc Length Queue 2 - RW */ +#define E1000_82542_RDH2 0x02A10 /* RX Desc Head Queue 2 - RW */ +#define E1000_82542_RDT2 0x02A18 /* RX Desc Tail Queue 2 - RW */ +#define E1000_82542_RDTR1 0x00130 +#define E1000_82542_RDBAL1 0x00138 +#define E1000_82542_RDBAH1 0x0013C +#define E1000_82542_RDLEN1 0x00140 +#define E1000_82542_RDH1 0x00148 +#define E1000_82542_RDT1 0x00150 +#define E1000_82542_FCRTH 0x00160 +#define E1000_82542_FCRTL 0x00168 +#define E1000_82542_FCTTV E1000_FCTTV +#define E1000_82542_TXCW E1000_TXCW +#define E1000_82542_RXCW E1000_RXCW +#define E1000_82542_MTA 0x00200 +#define E1000_82542_TCTL E1000_TCTL +#define E1000_82542_TCTL_EXT E1000_TCTL_EXT +#define E1000_82542_TIPG E1000_TIPG +#define E1000_82542_TDBAL 0x00420 +#define E1000_82542_TDBAH 0x00424 +#define E1000_82542_TDLEN 0x00428 +#define E1000_82542_TDH 0x00430 +#define E1000_82542_TDT 0x00438 +#define E1000_82542_TIDV 0x00440 +#define E1000_82542_TBT E1000_TBT +#define E1000_82542_AIT E1000_AIT +#define E1000_82542_VFTA 0x00600 +#define E1000_82542_LEDCTL E1000_LEDCTL +#define E1000_82542_PBA E1000_PBA +#define E1000_82542_PBS E1000_PBS +#define E1000_82542_EEMNGCTL E1000_EEMNGCTL +#define E1000_82542_EEARBC E1000_EEARBC +#define E1000_82542_FLASHT E1000_FLASHT +#define E1000_82542_EEWR E1000_EEWR +#define E1000_82542_FLSWCTL E1000_FLSWCTL +#define E1000_82542_FLSWDATA E1000_FLSWDATA +#define E1000_82542_FLSWCNT E1000_FLSWCNT +#define E1000_82542_FLOP E1000_FLOP +#define E1000_82542_EXTCNF_CTRL E1000_EXTCNF_CTRL +#define E1000_82542_EXTCNF_SIZE E1000_EXTCNF_SIZE +#define E1000_82542_PHY_CTRL E1000_PHY_CTRL +#define E1000_82542_ERT E1000_ERT +#define E1000_82542_RXDCTL E1000_RXDCTL +#define E1000_82542_RXDCTL1 E1000_RXDCTL1 +#define E1000_82542_RADV E1000_RADV +#define E1000_82542_RSRPD E1000_RSRPD +#define E1000_82542_TXDMAC E1000_TXDMAC +#define E1000_82542_KABGTXD E1000_KABGTXD +#define E1000_82542_TDFHS E1000_TDFHS +#define E1000_82542_TDFTS E1000_TDFTS +#define E1000_82542_TDFPC E1000_TDFPC +#define E1000_82542_TXDCTL E1000_TXDCTL +#define E1000_82542_TADV E1000_TADV +#define E1000_82542_TSPMT E1000_TSPMT +#define E1000_82542_CRCERRS E1000_CRCERRS +#define E1000_82542_ALGNERRC E1000_ALGNERRC +#define E1000_82542_SYMERRS E1000_SYMERRS +#define E1000_82542_RXERRC E1000_RXERRC +#define E1000_82542_MPC E1000_MPC +#define E1000_82542_SCC E1000_SCC +#define E1000_82542_ECOL E1000_ECOL +#define E1000_82542_MCC E1000_MCC +#define E1000_82542_LATECOL E1000_LATECOL +#define E1000_82542_COLC E1000_COLC +#define E1000_82542_DC E1000_DC +#define E1000_82542_TNCRS E1000_TNCRS +#define E1000_82542_SEC E1000_SEC +#define E1000_82542_CEXTERR E1000_CEXTERR +#define E1000_82542_RLEC E1000_RLEC +#define E1000_82542_XONRXC E1000_XONRXC +#define E1000_82542_XONTXC E1000_XONTXC +#define E1000_82542_XOFFRXC E1000_XOFFRXC +#define E1000_82542_XOFFTXC E1000_XOFFTXC +#define E1000_82542_FCRUC E1000_FCRUC +#define E1000_82542_PRC64 E1000_PRC64 +#define E1000_82542_PRC127 E1000_PRC127 +#define E1000_82542_PRC255 E1000_PRC255 +#define E1000_82542_PRC511 E1000_PRC511 +#define E1000_82542_PRC1023 E1000_PRC1023 +#define E1000_82542_PRC1522 E1000_PRC1522 +#define E1000_82542_GPRC E1000_GPRC +#define E1000_82542_BPRC E1000_BPRC +#define E1000_82542_MPRC E1000_MPRC +#define E1000_82542_GPTC E1000_GPTC +#define E1000_82542_GORCL E1000_GORCL +#define E1000_82542_GORCH E1000_GORCH +#define E1000_82542_GOTCL E1000_GOTCL +#define E1000_82542_GOTCH E1000_GOTCH +#define E1000_82542_RNBC E1000_RNBC +#define E1000_82542_RUC E1000_RUC +#define E1000_82542_RFC E1000_RFC +#define E1000_82542_ROC E1000_ROC +#define E1000_82542_RJC E1000_RJC +#define E1000_82542_MGTPRC E1000_MGTPRC +#define E1000_82542_MGTPDC E1000_MGTPDC +#define E1000_82542_MGTPTC E1000_MGTPTC +#define E1000_82542_TORL E1000_TORL +#define E1000_82542_TORH E1000_TORH +#define E1000_82542_TOTL E1000_TOTL +#define E1000_82542_TOTH E1000_TOTH +#define E1000_82542_TPR E1000_TPR +#define E1000_82542_TPT E1000_TPT +#define E1000_82542_PTC64 E1000_PTC64 +#define E1000_82542_PTC127 E1000_PTC127 +#define E1000_82542_PTC255 E1000_PTC255 +#define E1000_82542_PTC511 E1000_PTC511 +#define E1000_82542_PTC1023 E1000_PTC1023 +#define E1000_82542_PTC1522 E1000_PTC1522 +#define E1000_82542_MPTC E1000_MPTC +#define E1000_82542_BPTC E1000_BPTC +#define E1000_82542_TSCTC E1000_TSCTC +#define E1000_82542_TSCTFC E1000_TSCTFC +#define E1000_82542_RXCSUM E1000_RXCSUM +#define E1000_82542_WUC E1000_WUC +#define E1000_82542_WUFC E1000_WUFC +#define E1000_82542_WUS E1000_WUS +#define E1000_82542_MANC E1000_MANC +#define E1000_82542_IPAV E1000_IPAV +#define E1000_82542_IP4AT E1000_IP4AT +#define E1000_82542_IP6AT E1000_IP6AT +#define E1000_82542_WUPL E1000_WUPL +#define E1000_82542_WUPM E1000_WUPM +#define E1000_82542_FFLT E1000_FFLT +#define E1000_82542_TDFH 0x08010 +#define E1000_82542_TDFT 0x08018 +#define E1000_82542_FFMT E1000_FFMT +#define E1000_82542_FFVT E1000_FFVT +#define E1000_82542_HOST_IF E1000_HOST_IF +#define E1000_82542_IAM E1000_IAM +#define E1000_82542_EEMNGCTL E1000_EEMNGCTL +#define E1000_82542_PSRCTL E1000_PSRCTL +#define E1000_82542_RAID E1000_RAID +#define E1000_82542_TARC0 E1000_TARC0 +#define E1000_82542_TDBAL1 E1000_TDBAL1 +#define E1000_82542_TDBAH1 E1000_TDBAH1 +#define E1000_82542_TDLEN1 E1000_TDLEN1 +#define E1000_82542_TDH1 E1000_TDH1 +#define E1000_82542_TDT1 E1000_TDT1 +#define E1000_82542_TXDCTL1 E1000_TXDCTL1 +#define E1000_82542_TARC1 E1000_TARC1 +#define E1000_82542_RFCTL E1000_RFCTL +#define E1000_82542_GCR E1000_GCR +#define E1000_82542_GSCL_1 E1000_GSCL_1 +#define E1000_82542_GSCL_2 E1000_GSCL_2 +#define E1000_82542_GSCL_3 E1000_GSCL_3 +#define E1000_82542_GSCL_4 E1000_GSCL_4 +#define E1000_82542_FACTPS E1000_FACTPS +#define E1000_82542_SWSM E1000_SWSM +#define E1000_82542_FWSM E1000_FWSM +#define E1000_82542_FFLT_DBG E1000_FFLT_DBG +#define E1000_82542_IAC E1000_IAC +#define E1000_82542_ICRXPTC E1000_ICRXPTC +#define E1000_82542_ICRXATC E1000_ICRXATC +#define E1000_82542_ICTXPTC E1000_ICTXPTC +#define E1000_82542_ICTXATC E1000_ICTXATC +#define E1000_82542_ICTXQEC E1000_ICTXQEC +#define E1000_82542_ICTXQMTC E1000_ICTXQMTC +#define E1000_82542_ICRXDMTC E1000_ICRXDMTC +#define E1000_82542_ICRXOC E1000_ICRXOC +#define E1000_82542_HICR E1000_HICR + +#define E1000_82542_CPUVEC E1000_CPUVEC +#define E1000_82542_MRQC E1000_MRQC +#define E1000_82542_RETA E1000_RETA +#define E1000_82542_RSSRK E1000_RSSRK +#define E1000_82542_RSSIM E1000_RSSIM +#define E1000_82542_RSSIR E1000_RSSIR +#define E1000_82542_KUMCTRLSTA E1000_KUMCTRLSTA +#define E1000_82542_SW_FW_SYNC E1000_SW_FW_SYNC +#define E1000_82542_MANC2H E1000_MANC2H + +/* Statistics counters collected by the MAC */ +struct e1000_hw_stats { + u64 crcerrs; + u64 algnerrc; + u64 symerrs; + u64 rxerrc; + u64 txerrc; + u64 mpc; + u64 scc; + u64 ecol; + u64 mcc; + u64 latecol; + u64 colc; + u64 dc; + u64 tncrs; + u64 sec; + u64 cexterr; + u64 rlec; + u64 xonrxc; + u64 xontxc; + u64 xoffrxc; + u64 xofftxc; + u64 fcruc; + u64 prc64; + u64 prc127; + u64 prc255; + u64 prc511; + u64 prc1023; + u64 prc1522; + u64 gprc; + u64 bprc; + u64 mprc; + u64 gptc; + u64 gorcl; + u64 gorch; + u64 gotcl; + u64 gotch; + u64 rnbc; + u64 ruc; + u64 rfc; + u64 roc; + u64 rlerrc; + u64 rjc; + u64 mgprc; + u64 mgpdc; + u64 mgptc; + u64 torl; + u64 torh; + u64 totl; + u64 toth; + u64 tpr; + u64 tpt; + u64 ptc64; + u64 ptc127; + u64 ptc255; + u64 ptc511; + u64 ptc1023; + u64 ptc1522; + u64 mptc; + u64 bptc; + u64 tsctc; + u64 tsctfc; + u64 iac; + u64 icrxptc; + u64 icrxatc; + u64 ictxptc; + u64 ictxatc; + u64 ictxqec; + u64 ictxqmtc; + u64 icrxdmtc; + u64 icrxoc; +}; + +/* Structure containing variables used by the shared code (e1000_hw.c) */ +struct e1000_hw { + u8 __iomem *hw_addr; + u8 __iomem *flash_address; + e1000_mac_type mac_type; + e1000_phy_type phy_type; + u32 phy_init_script; + e1000_media_type media_type; + void *back; + struct e1000_shadow_ram *eeprom_shadow_ram; + u32 flash_bank_size; + u32 flash_base_addr; + e1000_fc_type fc; + e1000_bus_speed bus_speed; + e1000_bus_width bus_width; + e1000_bus_type bus_type; + struct e1000_eeprom_info eeprom; + e1000_ms_type master_slave; + e1000_ms_type original_master_slave; + e1000_ffe_config ffe_config_state; + u32 asf_firmware_present; + u32 eeprom_semaphore_present; + u32 swfw_sync_present; + u32 swfwhw_semaphore_present; + unsigned long io_base; + u32 phy_id; + u32 phy_revision; + u32 phy_addr; + u32 original_fc; + u32 txcw; + u32 autoneg_failed; + u32 max_frame_size; + u32 min_frame_size; + u32 mc_filter_type; + u32 num_mc_addrs; + u32 collision_delta; + u32 tx_packet_delta; + u32 ledctl_default; + u32 ledctl_mode1; + u32 ledctl_mode2; + bool tx_pkt_filtering; + struct e1000_host_mng_dhcp_cookie mng_cookie; + u16 phy_spd_default; + u16 autoneg_advertised; + u16 pci_cmd_word; + u16 fc_high_water; + u16 fc_low_water; + u16 fc_pause_time; + u16 current_ifs_val; + u16 ifs_min_val; + u16 ifs_max_val; + u16 ifs_step_size; + u16 ifs_ratio; + u16 device_id; + u16 vendor_id; + u16 subsystem_id; + u16 subsystem_vendor_id; + u8 revision_id; + u8 autoneg; + u8 mdix; + u8 forced_speed_duplex; + u8 wait_autoneg_complete; + u8 dma_fairness; + u8 mac_addr[NODE_ADDRESS_SIZE]; + u8 perm_mac_addr[NODE_ADDRESS_SIZE]; + bool disable_polarity_correction; + bool speed_downgraded; + e1000_smart_speed smart_speed; + e1000_dsp_config dsp_config_state; + bool get_link_status; + bool serdes_link_down; + bool tbi_compatibility_en; + bool tbi_compatibility_on; + bool laa_is_present; + bool phy_reset_disable; + bool initialize_hw_bits_disable; + bool fc_send_xon; + bool fc_strict_ieee; + bool report_tx_early; + bool adaptive_ifs; + bool ifs_params_forced; + bool in_ifs_mode; + bool mng_reg_access_disabled; + bool leave_av_bit_off; + bool kmrn_lock_loss_workaround_disabled; + bool bad_tx_carr_stats_fd; + bool has_manc2h; + bool rx_needs_kicking; + bool has_smbus; +}; + + +#define E1000_EEPROM_SWDPIN0 0x0001 /* SWDPIN 0 EEPROM Value */ +#define E1000_EEPROM_LED_LOGIC 0x0020 /* Led Logic Word */ +#define E1000_EEPROM_RW_REG_DATA 16 /* Offset to data in EEPROM read/write registers */ +#define E1000_EEPROM_RW_REG_DONE 2 /* Offset to READ/WRITE done bit */ +#define E1000_EEPROM_RW_REG_START 1 /* First bit for telling part to start operation */ +#define E1000_EEPROM_RW_ADDR_SHIFT 2 /* Shift to the address bits */ +#define E1000_EEPROM_POLL_WRITE 1 /* Flag for polling for write complete */ +#define E1000_EEPROM_POLL_READ 0 /* Flag for polling for read complete */ +/* Register Bit Masks */ +/* Device Control */ +#define E1000_CTRL_FD 0x00000001 /* Full duplex.0=half; 1=full */ +#define E1000_CTRL_BEM 0x00000002 /* Endian Mode.0=little,1=big */ +#define E1000_CTRL_PRIOR 0x00000004 /* Priority on PCI. 0=rx,1=fair */ +#define E1000_CTRL_GIO_MASTER_DISABLE 0x00000004 /*Blocks new Master requests */ +#define E1000_CTRL_LRST 0x00000008 /* Link reset. 0=normal,1=reset */ +#define E1000_CTRL_TME 0x00000010 /* Test mode. 0=normal,1=test */ +#define E1000_CTRL_SLE 0x00000020 /* Serial Link on 0=dis,1=en */ +#define E1000_CTRL_ASDE 0x00000020 /* Auto-speed detect enable */ +#define E1000_CTRL_SLU 0x00000040 /* Set link up (Force Link) */ +#define E1000_CTRL_ILOS 0x00000080 /* Invert Loss-Of Signal */ +#define E1000_CTRL_SPD_SEL 0x00000300 /* Speed Select Mask */ +#define E1000_CTRL_SPD_10 0x00000000 /* Force 10Mb */ +#define E1000_CTRL_SPD_100 0x00000100 /* Force 100Mb */ +#define E1000_CTRL_SPD_1000 0x00000200 /* Force 1Gb */ +#define E1000_CTRL_BEM32 0x00000400 /* Big Endian 32 mode */ +#define E1000_CTRL_FRCSPD 0x00000800 /* Force Speed */ +#define E1000_CTRL_FRCDPX 0x00001000 /* Force Duplex */ +#define E1000_CTRL_D_UD_EN 0x00002000 /* Dock/Undock enable */ +#define E1000_CTRL_D_UD_POLARITY 0x00004000 /* Defined polarity of Dock/Undock indication in SDP[0] */ +#define E1000_CTRL_FORCE_PHY_RESET 0x00008000 /* Reset both PHY ports, through PHYRST_N pin */ +#define E1000_CTRL_EXT_LINK_EN 0x00010000 /* enable link status from external LINK_0 and LINK_1 pins */ +#define E1000_CTRL_SWDPIN0 0x00040000 /* SWDPIN 0 value */ +#define E1000_CTRL_SWDPIN1 0x00080000 /* SWDPIN 1 value */ +#define E1000_CTRL_SWDPIN2 0x00100000 /* SWDPIN 2 value */ +#define E1000_CTRL_SWDPIN3 0x00200000 /* SWDPIN 3 value */ +#define E1000_CTRL_SWDPIO0 0x00400000 /* SWDPIN 0 Input or output */ +#define E1000_CTRL_SWDPIO1 0x00800000 /* SWDPIN 1 input or output */ +#define E1000_CTRL_SWDPIO2 0x01000000 /* SWDPIN 2 input or output */ +#define E1000_CTRL_SWDPIO3 0x02000000 /* SWDPIN 3 input or output */ +#define E1000_CTRL_RST 0x04000000 /* Global reset */ +#define E1000_CTRL_RFCE 0x08000000 /* Receive Flow Control enable */ +#define E1000_CTRL_TFCE 0x10000000 /* Transmit flow control enable */ +#define E1000_CTRL_RTE 0x20000000 /* Routing tag enable */ +#define E1000_CTRL_VME 0x40000000 /* IEEE VLAN mode enable */ +#define E1000_CTRL_PHY_RST 0x80000000 /* PHY Reset */ +#define E1000_CTRL_SW2FW_INT 0x02000000 /* Initiate an interrupt to manageability engine */ + +/* Device Status */ +#define E1000_STATUS_FD 0x00000001 /* Full duplex.0=half,1=full */ +#define E1000_STATUS_LU 0x00000002 /* Link up.0=no,1=link */ +#define E1000_STATUS_FUNC_MASK 0x0000000C /* PCI Function Mask */ +#define E1000_STATUS_FUNC_SHIFT 2 +#define E1000_STATUS_FUNC_0 0x00000000 /* Function 0 */ +#define E1000_STATUS_FUNC_1 0x00000004 /* Function 1 */ +#define E1000_STATUS_TXOFF 0x00000010 /* transmission paused */ +#define E1000_STATUS_TBIMODE 0x00000020 /* TBI mode */ +#define E1000_STATUS_SPEED_MASK 0x000000C0 +#define E1000_STATUS_SPEED_10 0x00000000 /* Speed 10Mb/s */ +#define E1000_STATUS_SPEED_100 0x00000040 /* Speed 100Mb/s */ +#define E1000_STATUS_SPEED_1000 0x00000080 /* Speed 1000Mb/s */ +#define E1000_STATUS_LAN_INIT_DONE 0x00000200 /* Lan Init Completion + by EEPROM/Flash */ +#define E1000_STATUS_ASDV 0x00000300 /* Auto speed detect value */ +#define E1000_STATUS_DOCK_CI 0x00000800 /* Change in Dock/Undock state. Clear on write '0'. */ +#define E1000_STATUS_GIO_MASTER_ENABLE 0x00080000 /* Status of Master requests. */ +#define E1000_STATUS_MTXCKOK 0x00000400 /* MTX clock running OK */ +#define E1000_STATUS_PCI66 0x00000800 /* In 66Mhz slot */ +#define E1000_STATUS_BUS64 0x00001000 /* In 64 bit slot */ +#define E1000_STATUS_PCIX_MODE 0x00002000 /* PCI-X mode */ +#define E1000_STATUS_PCIX_SPEED 0x0000C000 /* PCI-X bus speed */ +#define E1000_STATUS_BMC_SKU_0 0x00100000 /* BMC USB redirect disabled */ +#define E1000_STATUS_BMC_SKU_1 0x00200000 /* BMC SRAM disabled */ +#define E1000_STATUS_BMC_SKU_2 0x00400000 /* BMC SDRAM disabled */ +#define E1000_STATUS_BMC_CRYPTO 0x00800000 /* BMC crypto disabled */ +#define E1000_STATUS_BMC_LITE 0x01000000 /* BMC external code execution disabled */ +#define E1000_STATUS_RGMII_ENABLE 0x02000000 /* RGMII disabled */ +#define E1000_STATUS_FUSE_8 0x04000000 +#define E1000_STATUS_FUSE_9 0x08000000 +#define E1000_STATUS_SERDES0_DIS 0x10000000 /* SERDES disabled on port 0 */ +#define E1000_STATUS_SERDES1_DIS 0x20000000 /* SERDES disabled on port 1 */ + +/* Constants used to intrepret the masked PCI-X bus speed. */ +#define E1000_STATUS_PCIX_SPEED_66 0x00000000 /* PCI-X bus speed 50-66 MHz */ +#define E1000_STATUS_PCIX_SPEED_100 0x00004000 /* PCI-X bus speed 66-100 MHz */ +#define E1000_STATUS_PCIX_SPEED_133 0x00008000 /* PCI-X bus speed 100-133 MHz */ + +/* EEPROM/Flash Control */ +#define E1000_EECD_SK 0x00000001 /* EEPROM Clock */ +#define E1000_EECD_CS 0x00000002 /* EEPROM Chip Select */ +#define E1000_EECD_DI 0x00000004 /* EEPROM Data In */ +#define E1000_EECD_DO 0x00000008 /* EEPROM Data Out */ +#define E1000_EECD_FWE_MASK 0x00000030 +#define E1000_EECD_FWE_DIS 0x00000010 /* Disable FLASH writes */ +#define E1000_EECD_FWE_EN 0x00000020 /* Enable FLASH writes */ +#define E1000_EECD_FWE_SHIFT 4 +#define E1000_EECD_REQ 0x00000040 /* EEPROM Access Request */ +#define E1000_EECD_GNT 0x00000080 /* EEPROM Access Grant */ +#define E1000_EECD_PRES 0x00000100 /* EEPROM Present */ +#define E1000_EECD_SIZE 0x00000200 /* EEPROM Size (0=64 word 1=256 word) */ +#define E1000_EECD_ADDR_BITS 0x00000400 /* EEPROM Addressing bits based on type + * (0-small, 1-large) */ +#define E1000_EECD_TYPE 0x00002000 /* EEPROM Type (1-SPI, 0-Microwire) */ +#ifndef E1000_EEPROM_GRANT_ATTEMPTS +#define E1000_EEPROM_GRANT_ATTEMPTS 1000 /* EEPROM # attempts to gain grant */ +#endif +#define E1000_EECD_AUTO_RD 0x00000200 /* EEPROM Auto Read done */ +#define E1000_EECD_SIZE_EX_MASK 0x00007800 /* EEprom Size */ +#define E1000_EECD_SIZE_EX_SHIFT 11 +#define E1000_EECD_NVADDS 0x00018000 /* NVM Address Size */ +#define E1000_EECD_SELSHAD 0x00020000 /* Select Shadow RAM */ +#define E1000_EECD_INITSRAM 0x00040000 /* Initialize Shadow RAM */ +#define E1000_EECD_FLUPD 0x00080000 /* Update FLASH */ +#define E1000_EECD_AUPDEN 0x00100000 /* Enable Autonomous FLASH update */ +#define E1000_EECD_SHADV 0x00200000 /* Shadow RAM Data Valid */ +#define E1000_EECD_SEC1VAL 0x00400000 /* Sector One Valid */ +#define E1000_EECD_SECVAL_SHIFT 22 +#define E1000_STM_OPCODE 0xDB00 +#define E1000_HICR_FW_RESET 0xC0 + +#define E1000_SHADOW_RAM_WORDS 2048 +#define E1000_ICH_NVM_SIG_WORD 0x13 +#define E1000_ICH_NVM_SIG_MASK 0xC0 + +/* EEPROM Read */ +#define E1000_EERD_START 0x00000001 /* Start Read */ +#define E1000_EERD_DONE 0x00000010 /* Read Done */ +#define E1000_EERD_ADDR_SHIFT 8 +#define E1000_EERD_ADDR_MASK 0x0000FF00 /* Read Address */ +#define E1000_EERD_DATA_SHIFT 16 +#define E1000_EERD_DATA_MASK 0xFFFF0000 /* Read Data */ + +/* SPI EEPROM Status Register */ +#define EEPROM_STATUS_RDY_SPI 0x01 +#define EEPROM_STATUS_WEN_SPI 0x02 +#define EEPROM_STATUS_BP0_SPI 0x04 +#define EEPROM_STATUS_BP1_SPI 0x08 +#define EEPROM_STATUS_WPEN_SPI 0x80 + +/* Extended Device Control */ +#define E1000_CTRL_EXT_GPI0_EN 0x00000001 /* Maps SDP4 to GPI0 */ +#define E1000_CTRL_EXT_GPI1_EN 0x00000002 /* Maps SDP5 to GPI1 */ +#define E1000_CTRL_EXT_PHYINT_EN E1000_CTRL_EXT_GPI1_EN +#define E1000_CTRL_EXT_GPI2_EN 0x00000004 /* Maps SDP6 to GPI2 */ +#define E1000_CTRL_EXT_GPI3_EN 0x00000008 /* Maps SDP7 to GPI3 */ +#define E1000_CTRL_EXT_SDP4_DATA 0x00000010 /* Value of SW Defineable Pin 4 */ +#define E1000_CTRL_EXT_SDP5_DATA 0x00000020 /* Value of SW Defineable Pin 5 */ +#define E1000_CTRL_EXT_PHY_INT E1000_CTRL_EXT_SDP5_DATA +#define E1000_CTRL_EXT_SDP6_DATA 0x00000040 /* Value of SW Defineable Pin 6 */ +#define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */ +#define E1000_CTRL_EXT_SDP4_DIR 0x00000100 /* Direction of SDP4 0=in 1=out */ +#define E1000_CTRL_EXT_SDP5_DIR 0x00000200 /* Direction of SDP5 0=in 1=out */ +#define E1000_CTRL_EXT_SDP6_DIR 0x00000400 /* Direction of SDP6 0=in 1=out */ +#define E1000_CTRL_EXT_SDP7_DIR 0x00000800 /* Direction of SDP7 0=in 1=out */ +#define E1000_CTRL_EXT_ASDCHK 0x00001000 /* Initiate an ASD sequence */ +#define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */ +#define E1000_CTRL_EXT_IPS 0x00004000 /* Invert Power State */ +#define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */ +#define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */ +#define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000 +#define E1000_CTRL_EXT_LINK_MODE_TBI 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_KMRN 0x00000000 +#define E1000_CTRL_EXT_LINK_MODE_SERDES 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_SGMII 0x00800000 +#define E1000_CTRL_EXT_WR_WMARK_MASK 0x03000000 +#define E1000_CTRL_EXT_WR_WMARK_256 0x00000000 +#define E1000_CTRL_EXT_WR_WMARK_320 0x01000000 +#define E1000_CTRL_EXT_WR_WMARK_384 0x02000000 +#define E1000_CTRL_EXT_WR_WMARK_448 0x03000000 +#define E1000_CTRL_EXT_DRV_LOAD 0x10000000 /* Driver loaded bit for FW */ +#define E1000_CTRL_EXT_IAME 0x08000000 /* Interrupt acknowledge Auto-mask */ +#define E1000_CTRL_EXT_INT_TIMER_CLR 0x20000000 /* Clear Interrupt timers after IMS clear */ +#define E1000_CRTL_EXT_PB_PAREN 0x01000000 /* packet buffer parity error detection enabled */ +#define E1000_CTRL_EXT_DF_PAREN 0x02000000 /* descriptor FIFO parity error detection enable */ +#define E1000_CTRL_EXT_GHOST_PAREN 0x40000000 + +/* MDI Control */ +#define E1000_MDIC_DATA_MASK 0x0000FFFF +#define E1000_MDIC_REG_MASK 0x001F0000 +#define E1000_MDIC_REG_SHIFT 16 +#define E1000_MDIC_PHY_MASK 0x03E00000 +#define E1000_MDIC_PHY_SHIFT 21 +#define E1000_MDIC_OP_WRITE 0x04000000 +#define E1000_MDIC_OP_READ 0x08000000 +#define E1000_MDIC_READY 0x10000000 +#define E1000_MDIC_INT_EN 0x20000000 +#define E1000_MDIC_ERROR 0x40000000 + +#define E1000_KUMCTRLSTA_MASK 0x0000FFFF +#define E1000_KUMCTRLSTA_OFFSET 0x001F0000 +#define E1000_KUMCTRLSTA_OFFSET_SHIFT 16 +#define E1000_KUMCTRLSTA_REN 0x00200000 + +#define E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL 0x00000000 +#define E1000_KUMCTRLSTA_OFFSET_CTRL 0x00000001 +#define E1000_KUMCTRLSTA_OFFSET_INB_CTRL 0x00000002 +#define E1000_KUMCTRLSTA_OFFSET_DIAG 0x00000003 +#define E1000_KUMCTRLSTA_OFFSET_TIMEOUTS 0x00000004 +#define E1000_KUMCTRLSTA_OFFSET_INB_PARAM 0x00000009 +#define E1000_KUMCTRLSTA_OFFSET_HD_CTRL 0x00000010 +#define E1000_KUMCTRLSTA_OFFSET_M2P_SERDES 0x0000001E +#define E1000_KUMCTRLSTA_OFFSET_M2P_MODES 0x0000001F + +/* FIFO Control */ +#define E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS 0x00000008 +#define E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS 0x00000800 + +/* In-Band Control */ +#define E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT 0x00000500 +#define E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING 0x00000010 + +/* Half-Duplex Control */ +#define E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT 0x00000004 +#define E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT 0x00000000 + +#define E1000_KUMCTRLSTA_OFFSET_K0S_CTRL 0x0000001E + +#define E1000_KUMCTRLSTA_DIAG_FELPBK 0x2000 +#define E1000_KUMCTRLSTA_DIAG_NELPBK 0x1000 + +#define E1000_KUMCTRLSTA_K0S_100_EN 0x2000 +#define E1000_KUMCTRLSTA_K0S_GBE_EN 0x1000 +#define E1000_KUMCTRLSTA_K0S_ENTRY_LATENCY_MASK 0x0003 + +#define E1000_KABGTXD_BGSQLBIAS 0x00050000 + +#define E1000_PHY_CTRL_SPD_EN 0x00000001 +#define E1000_PHY_CTRL_D0A_LPLU 0x00000002 +#define E1000_PHY_CTRL_NOND0A_LPLU 0x00000004 +#define E1000_PHY_CTRL_NOND0A_GBE_DISABLE 0x00000008 +#define E1000_PHY_CTRL_GBE_DISABLE 0x00000040 +#define E1000_PHY_CTRL_B2B_EN 0x00000080 + +/* LED Control */ +#define E1000_LEDCTL_LED0_MODE_MASK 0x0000000F +#define E1000_LEDCTL_LED0_MODE_SHIFT 0 +#define E1000_LEDCTL_LED0_BLINK_RATE 0x0000020 +#define E1000_LEDCTL_LED0_IVRT 0x00000040 +#define E1000_LEDCTL_LED0_BLINK 0x00000080 +#define E1000_LEDCTL_LED1_MODE_MASK 0x00000F00 +#define E1000_LEDCTL_LED1_MODE_SHIFT 8 +#define E1000_LEDCTL_LED1_BLINK_RATE 0x0002000 +#define E1000_LEDCTL_LED1_IVRT 0x00004000 +#define E1000_LEDCTL_LED1_BLINK 0x00008000 +#define E1000_LEDCTL_LED2_MODE_MASK 0x000F0000 +#define E1000_LEDCTL_LED2_MODE_SHIFT 16 +#define E1000_LEDCTL_LED2_BLINK_RATE 0x00200000 +#define E1000_LEDCTL_LED2_IVRT 0x00400000 +#define E1000_LEDCTL_LED2_BLINK 0x00800000 +#define E1000_LEDCTL_LED3_MODE_MASK 0x0F000000 +#define E1000_LEDCTL_LED3_MODE_SHIFT 24 +#define E1000_LEDCTL_LED3_BLINK_RATE 0x20000000 +#define E1000_LEDCTL_LED3_IVRT 0x40000000 +#define E1000_LEDCTL_LED3_BLINK 0x80000000 + +#define E1000_LEDCTL_MODE_LINK_10_1000 0x0 +#define E1000_LEDCTL_MODE_LINK_100_1000 0x1 +#define E1000_LEDCTL_MODE_LINK_UP 0x2 +#define E1000_LEDCTL_MODE_ACTIVITY 0x3 +#define E1000_LEDCTL_MODE_LINK_ACTIVITY 0x4 +#define E1000_LEDCTL_MODE_LINK_10 0x5 +#define E1000_LEDCTL_MODE_LINK_100 0x6 +#define E1000_LEDCTL_MODE_LINK_1000 0x7 +#define E1000_LEDCTL_MODE_PCIX_MODE 0x8 +#define E1000_LEDCTL_MODE_FULL_DUPLEX 0x9 +#define E1000_LEDCTL_MODE_COLLISION 0xA +#define E1000_LEDCTL_MODE_BUS_SPEED 0xB +#define E1000_LEDCTL_MODE_BUS_SIZE 0xC +#define E1000_LEDCTL_MODE_PAUSED 0xD +#define E1000_LEDCTL_MODE_LED_ON 0xE +#define E1000_LEDCTL_MODE_LED_OFF 0xF + +/* Receive Address */ +#define E1000_RAH_AV 0x80000000 /* Receive descriptor valid */ + +/* Interrupt Cause Read */ +#define E1000_ICR_TXDW 0x00000001 /* Transmit desc written back */ +#define E1000_ICR_TXQE 0x00000002 /* Transmit Queue empty */ +#define E1000_ICR_LSC 0x00000004 /* Link Status Change */ +#define E1000_ICR_RXSEQ 0x00000008 /* rx sequence error */ +#define E1000_ICR_RXDMT0 0x00000010 /* rx desc min. threshold (0) */ +#define E1000_ICR_RXO 0x00000040 /* rx overrun */ +#define E1000_ICR_RXT0 0x00000080 /* rx timer intr (ring 0) */ +#define E1000_ICR_MDAC 0x00000200 /* MDIO access complete */ +#define E1000_ICR_RXCFG 0x00000400 /* RX /c/ ordered set */ +#define E1000_ICR_GPI_EN0 0x00000800 /* GP Int 0 */ +#define E1000_ICR_GPI_EN1 0x00001000 /* GP Int 1 */ +#define E1000_ICR_GPI_EN2 0x00002000 /* GP Int 2 */ +#define E1000_ICR_GPI_EN3 0x00004000 /* GP Int 3 */ +#define E1000_ICR_TXD_LOW 0x00008000 +#define E1000_ICR_SRPD 0x00010000 +#define E1000_ICR_ACK 0x00020000 /* Receive Ack frame */ +#define E1000_ICR_MNG 0x00040000 /* Manageability event */ +#define E1000_ICR_DOCK 0x00080000 /* Dock/Undock */ +#define E1000_ICR_INT_ASSERTED 0x80000000 /* If this bit asserted, the driver should claim the interrupt */ +#define E1000_ICR_RXD_FIFO_PAR0 0x00100000 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_ICR_TXD_FIFO_PAR0 0x00200000 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_ICR_HOST_ARB_PAR 0x00400000 /* host arb read buffer parity error */ +#define E1000_ICR_PB_PAR 0x00800000 /* packet buffer parity error */ +#define E1000_ICR_RXD_FIFO_PAR1 0x01000000 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_ICR_TXD_FIFO_PAR1 0x02000000 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_ICR_ALL_PARITY 0x03F00000 /* all parity error bits */ +#define E1000_ICR_DSW 0x00000020 /* FW changed the status of DISSW bit in the FWSM */ +#define E1000_ICR_PHYINT 0x00001000 /* LAN connected device generates an interrupt */ +#define E1000_ICR_EPRST 0x00100000 /* ME handware reset occurs */ + +/* Interrupt Cause Set */ +#define E1000_ICS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_ICS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_ICS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_ICS_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_ICS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_ICS_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_ICS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_ICS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_ICS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_ICS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_ICS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_ICS_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_ICS_SRPD E1000_ICR_SRPD +#define E1000_ICS_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_ICS_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_ICS_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_ICS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_ICS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_ICS_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_ICS_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_ICS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_ICS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_ICS_DSW E1000_ICR_DSW +#define E1000_ICS_PHYINT E1000_ICR_PHYINT +#define E1000_ICS_EPRST E1000_ICR_EPRST + +/* Interrupt Mask Set */ +#define E1000_IMS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_IMS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_IMS_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_IMS_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_IMS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMS_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_IMS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_IMS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_IMS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_IMS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_IMS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_IMS_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_IMS_SRPD E1000_ICR_SRPD +#define E1000_IMS_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_IMS_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_IMS_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_IMS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_IMS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_IMS_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_IMS_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_IMS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_IMS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_IMS_DSW E1000_ICR_DSW +#define E1000_IMS_PHYINT E1000_ICR_PHYINT +#define E1000_IMS_EPRST E1000_ICR_EPRST + +/* Interrupt Mask Clear */ +#define E1000_IMC_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_IMC_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_IMC_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_IMC_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_IMC_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_IMC_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_IMC_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMC_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_IMC_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_IMC_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_IMC_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_IMC_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_IMC_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_IMC_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_IMC_SRPD E1000_ICR_SRPD +#define E1000_IMC_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_IMC_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_IMC_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_IMC_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_IMC_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_IMC_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_IMC_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_IMC_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_IMC_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_IMC_DSW E1000_ICR_DSW +#define E1000_IMC_PHYINT E1000_ICR_PHYINT +#define E1000_IMC_EPRST E1000_ICR_EPRST + +/* Receive Control */ +#define E1000_RCTL_RST 0x00000001 /* Software reset */ +#define E1000_RCTL_EN 0x00000002 /* enable */ +#define E1000_RCTL_SBP 0x00000004 /* store bad packet */ +#define E1000_RCTL_UPE 0x00000008 /* unicast promiscuous enable */ +#define E1000_RCTL_MPE 0x00000010 /* multicast promiscuous enab */ +#define E1000_RCTL_LPE 0x00000020 /* long packet enable */ +#define E1000_RCTL_LBM_NO 0x00000000 /* no loopback mode */ +#define E1000_RCTL_LBM_MAC 0x00000040 /* MAC loopback mode */ +#define E1000_RCTL_LBM_SLP 0x00000080 /* serial link loopback mode */ +#define E1000_RCTL_LBM_TCVR 0x000000C0 /* tcvr loopback mode */ +#define E1000_RCTL_DTYP_MASK 0x00000C00 /* Descriptor type mask */ +#define E1000_RCTL_DTYP_PS 0x00000400 /* Packet Split descriptor */ +#define E1000_RCTL_RDMTS_HALF 0x00000000 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_QUAT 0x00000100 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_EIGTH 0x00000200 /* rx desc min threshold size */ +#define E1000_RCTL_MO_SHIFT 12 /* multicast offset shift */ +#define E1000_RCTL_MO_0 0x00000000 /* multicast offset 11:0 */ +#define E1000_RCTL_MO_1 0x00001000 /* multicast offset 12:1 */ +#define E1000_RCTL_MO_2 0x00002000 /* multicast offset 13:2 */ +#define E1000_RCTL_MO_3 0x00003000 /* multicast offset 15:4 */ +#define E1000_RCTL_MDR 0x00004000 /* multicast desc ring 0 */ +#define E1000_RCTL_BAM 0x00008000 /* broadcast enable */ +/* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */ +#define E1000_RCTL_SZ_2048 0x00000000 /* rx buffer size 2048 */ +#define E1000_RCTL_SZ_1024 0x00010000 /* rx buffer size 1024 */ +#define E1000_RCTL_SZ_512 0x00020000 /* rx buffer size 512 */ +#define E1000_RCTL_SZ_256 0x00030000 /* rx buffer size 256 */ +/* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */ +#define E1000_RCTL_SZ_16384 0x00010000 /* rx buffer size 16384 */ +#define E1000_RCTL_SZ_8192 0x00020000 /* rx buffer size 8192 */ +#define E1000_RCTL_SZ_4096 0x00030000 /* rx buffer size 4096 */ +#define E1000_RCTL_VFE 0x00040000 /* vlan filter enable */ +#define E1000_RCTL_CFIEN 0x00080000 /* canonical form enable */ +#define E1000_RCTL_CFI 0x00100000 /* canonical form indicator */ +#define E1000_RCTL_DPF 0x00400000 /* discard pause frames */ +#define E1000_RCTL_PMCF 0x00800000 /* pass MAC control frames */ +#define E1000_RCTL_BSEX 0x02000000 /* Buffer size extension */ +#define E1000_RCTL_SECRC 0x04000000 /* Strip Ethernet CRC */ +#define E1000_RCTL_FLXBUF_MASK 0x78000000 /* Flexible buffer size */ +#define E1000_RCTL_FLXBUF_SHIFT 27 /* Flexible buffer shift */ + +/* Use byte values for the following shift parameters + * Usage: + * psrctl |= (((ROUNDUP(value0, 128) >> E1000_PSRCTL_BSIZE0_SHIFT) & + * E1000_PSRCTL_BSIZE0_MASK) | + * ((ROUNDUP(value1, 1024) >> E1000_PSRCTL_BSIZE1_SHIFT) & + * E1000_PSRCTL_BSIZE1_MASK) | + * ((ROUNDUP(value2, 1024) << E1000_PSRCTL_BSIZE2_SHIFT) & + * E1000_PSRCTL_BSIZE2_MASK) | + * ((ROUNDUP(value3, 1024) << E1000_PSRCTL_BSIZE3_SHIFT) |; + * E1000_PSRCTL_BSIZE3_MASK)) + * where value0 = [128..16256], default=256 + * value1 = [1024..64512], default=4096 + * value2 = [0..64512], default=4096 + * value3 = [0..64512], default=0 + */ + +#define E1000_PSRCTL_BSIZE0_MASK 0x0000007F +#define E1000_PSRCTL_BSIZE1_MASK 0x00003F00 +#define E1000_PSRCTL_BSIZE2_MASK 0x003F0000 +#define E1000_PSRCTL_BSIZE3_MASK 0x3F000000 + +#define E1000_PSRCTL_BSIZE0_SHIFT 7 /* Shift _right_ 7 */ +#define E1000_PSRCTL_BSIZE1_SHIFT 2 /* Shift _right_ 2 */ +#define E1000_PSRCTL_BSIZE2_SHIFT 6 /* Shift _left_ 6 */ +#define E1000_PSRCTL_BSIZE3_SHIFT 14 /* Shift _left_ 14 */ + +/* SW_W_SYNC definitions */ +#define E1000_SWFW_EEP_SM 0x0001 +#define E1000_SWFW_PHY0_SM 0x0002 +#define E1000_SWFW_PHY1_SM 0x0004 +#define E1000_SWFW_MAC_CSR_SM 0x0008 + +/* Receive Descriptor */ +#define E1000_RDT_DELAY 0x0000ffff /* Delay timer (1=1024us) */ +#define E1000_RDT_FPDB 0x80000000 /* Flush descriptor block */ +#define E1000_RDLEN_LEN 0x0007ff80 /* descriptor length */ +#define E1000_RDH_RDH 0x0000ffff /* receive descriptor head */ +#define E1000_RDT_RDT 0x0000ffff /* receive descriptor tail */ + +/* Flow Control */ +#define E1000_FCRTH_RTH 0x0000FFF8 /* Mask Bits[15:3] for RTH */ +#define E1000_FCRTH_XFCE 0x80000000 /* External Flow Control Enable */ +#define E1000_FCRTL_RTL 0x0000FFF8 /* Mask Bits[15:3] for RTL */ +#define E1000_FCRTL_XONE 0x80000000 /* Enable XON frame transmission */ + +/* Header split receive */ +#define E1000_RFCTL_ISCSI_DIS 0x00000001 +#define E1000_RFCTL_ISCSI_DWC_MASK 0x0000003E +#define E1000_RFCTL_ISCSI_DWC_SHIFT 1 +#define E1000_RFCTL_NFSW_DIS 0x00000040 +#define E1000_RFCTL_NFSR_DIS 0x00000080 +#define E1000_RFCTL_NFS_VER_MASK 0x00000300 +#define E1000_RFCTL_NFS_VER_SHIFT 8 +#define E1000_RFCTL_IPV6_DIS 0x00000400 +#define E1000_RFCTL_IPV6_XSUM_DIS 0x00000800 +#define E1000_RFCTL_ACK_DIS 0x00001000 +#define E1000_RFCTL_ACKD_DIS 0x00002000 +#define E1000_RFCTL_IPFRSP_DIS 0x00004000 +#define E1000_RFCTL_EXTEN 0x00008000 +#define E1000_RFCTL_IPV6_EX_DIS 0x00010000 +#define E1000_RFCTL_NEW_IPV6_EXT_DIS 0x00020000 + +/* Receive Descriptor Control */ +#define E1000_RXDCTL_PTHRESH 0x0000003F /* RXDCTL Prefetch Threshold */ +#define E1000_RXDCTL_HTHRESH 0x00003F00 /* RXDCTL Host Threshold */ +#define E1000_RXDCTL_WTHRESH 0x003F0000 /* RXDCTL Writeback Threshold */ +#define E1000_RXDCTL_GRAN 0x01000000 /* RXDCTL Granularity */ + +/* Transmit Descriptor Control */ +#define E1000_TXDCTL_PTHRESH 0x0000003F /* TXDCTL Prefetch Threshold */ +#define E1000_TXDCTL_HTHRESH 0x00003F00 /* TXDCTL Host Threshold */ +#define E1000_TXDCTL_WTHRESH 0x003F0000 /* TXDCTL Writeback Threshold */ +#define E1000_TXDCTL_GRAN 0x01000000 /* TXDCTL Granularity */ +#define E1000_TXDCTL_LWTHRESH 0xFE000000 /* TXDCTL Low Threshold */ +#define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000 /* GRAN=1, WTHRESH=1 */ +#define E1000_TXDCTL_COUNT_DESC 0x00400000 /* Enable the counting of desc. + still to be processed. */ +/* Transmit Configuration Word */ +#define E1000_TXCW_FD 0x00000020 /* TXCW full duplex */ +#define E1000_TXCW_HD 0x00000040 /* TXCW half duplex */ +#define E1000_TXCW_PAUSE 0x00000080 /* TXCW sym pause request */ +#define E1000_TXCW_ASM_DIR 0x00000100 /* TXCW astm pause direction */ +#define E1000_TXCW_PAUSE_MASK 0x00000180 /* TXCW pause request mask */ +#define E1000_TXCW_RF 0x00003000 /* TXCW remote fault */ +#define E1000_TXCW_NP 0x00008000 /* TXCW next page */ +#define E1000_TXCW_CW 0x0000ffff /* TxConfigWord mask */ +#define E1000_TXCW_TXC 0x40000000 /* Transmit Config control */ +#define E1000_TXCW_ANE 0x80000000 /* Auto-neg enable */ + +/* Receive Configuration Word */ +#define E1000_RXCW_CW 0x0000ffff /* RxConfigWord mask */ +#define E1000_RXCW_NC 0x04000000 /* Receive config no carrier */ +#define E1000_RXCW_IV 0x08000000 /* Receive config invalid */ +#define E1000_RXCW_CC 0x10000000 /* Receive config change */ +#define E1000_RXCW_C 0x20000000 /* Receive config */ +#define E1000_RXCW_SYNCH 0x40000000 /* Receive config synch */ +#define E1000_RXCW_ANC 0x80000000 /* Auto-neg complete */ + +/* Transmit Control */ +#define E1000_TCTL_RST 0x00000001 /* software reset */ +#define E1000_TCTL_EN 0x00000002 /* enable tx */ +#define E1000_TCTL_BCE 0x00000004 /* busy check enable */ +#define E1000_TCTL_PSP 0x00000008 /* pad short packets */ +#define E1000_TCTL_CT 0x00000ff0 /* collision threshold */ +#define E1000_TCTL_COLD 0x003ff000 /* collision distance */ +#define E1000_TCTL_SWXOFF 0x00400000 /* SW Xoff transmission */ +#define E1000_TCTL_PBE 0x00800000 /* Packet Burst Enable */ +#define E1000_TCTL_RTLC 0x01000000 /* Re-transmit on late collision */ +#define E1000_TCTL_NRTU 0x02000000 /* No Re-transmit on underrun */ +#define E1000_TCTL_MULR 0x10000000 /* Multiple request support */ +/* Extended Transmit Control */ +#define E1000_TCTL_EXT_BST_MASK 0x000003FF /* Backoff Slot Time */ +#define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */ + +#define DEFAULT_80003ES2LAN_TCTL_EXT_GCEX 0x00010000 + +/* Receive Checksum Control */ +#define E1000_RXCSUM_PCSS_MASK 0x000000FF /* Packet Checksum Start */ +#define E1000_RXCSUM_IPOFL 0x00000100 /* IPv4 checksum offload */ +#define E1000_RXCSUM_TUOFL 0x00000200 /* TCP / UDP checksum offload */ +#define E1000_RXCSUM_IPV6OFL 0x00000400 /* IPv6 checksum offload */ +#define E1000_RXCSUM_IPPCSE 0x00001000 /* IP payload checksum enable */ +#define E1000_RXCSUM_PCSD 0x00002000 /* packet checksum disabled */ + +/* Multiple Receive Queue Control */ +#define E1000_MRQC_ENABLE_MASK 0x00000003 +#define E1000_MRQC_ENABLE_RSS_2Q 0x00000001 +#define E1000_MRQC_ENABLE_RSS_INT 0x00000004 +#define E1000_MRQC_RSS_FIELD_MASK 0xFFFF0000 +#define E1000_MRQC_RSS_FIELD_IPV4_TCP 0x00010000 +#define E1000_MRQC_RSS_FIELD_IPV4 0x00020000 +#define E1000_MRQC_RSS_FIELD_IPV6_TCP_EX 0x00040000 +#define E1000_MRQC_RSS_FIELD_IPV6_EX 0x00080000 +#define E1000_MRQC_RSS_FIELD_IPV6 0x00100000 +#define E1000_MRQC_RSS_FIELD_IPV6_TCP 0x00200000 + +/* Definitions for power management and wakeup registers */ +/* Wake Up Control */ +#define E1000_WUC_APME 0x00000001 /* APM Enable */ +#define E1000_WUC_PME_EN 0x00000002 /* PME Enable */ +#define E1000_WUC_PME_STATUS 0x00000004 /* PME Status */ +#define E1000_WUC_APMPME 0x00000008 /* Assert PME on APM Wakeup */ +#define E1000_WUC_SPM 0x80000000 /* Enable SPM */ + +/* Wake Up Filter Control */ +#define E1000_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */ +#define E1000_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */ +#define E1000_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */ +#define E1000_WUFC_MC 0x00000008 /* Directed Multicast Wakeup Enable */ +#define E1000_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */ +#define E1000_WUFC_ARP 0x00000020 /* ARP Request Packet Wakeup Enable */ +#define E1000_WUFC_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Enable */ +#define E1000_WUFC_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Enable */ +#define E1000_WUFC_IGNORE_TCO 0x00008000 /* Ignore WakeOn TCO packets */ +#define E1000_WUFC_FLX0 0x00010000 /* Flexible Filter 0 Enable */ +#define E1000_WUFC_FLX1 0x00020000 /* Flexible Filter 1 Enable */ +#define E1000_WUFC_FLX2 0x00040000 /* Flexible Filter 2 Enable */ +#define E1000_WUFC_FLX3 0x00080000 /* Flexible Filter 3 Enable */ +#define E1000_WUFC_ALL_FILTERS 0x000F00FF /* Mask for all wakeup filters */ +#define E1000_WUFC_FLX_OFFSET 16 /* Offset to the Flexible Filters bits */ +#define E1000_WUFC_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */ + +/* Wake Up Status */ +#define E1000_WUS_LNKC 0x00000001 /* Link Status Changed */ +#define E1000_WUS_MAG 0x00000002 /* Magic Packet Received */ +#define E1000_WUS_EX 0x00000004 /* Directed Exact Received */ +#define E1000_WUS_MC 0x00000008 /* Directed Multicast Received */ +#define E1000_WUS_BC 0x00000010 /* Broadcast Received */ +#define E1000_WUS_ARP 0x00000020 /* ARP Request Packet Received */ +#define E1000_WUS_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Received */ +#define E1000_WUS_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Received */ +#define E1000_WUS_FLX0 0x00010000 /* Flexible Filter 0 Match */ +#define E1000_WUS_FLX1 0x00020000 /* Flexible Filter 1 Match */ +#define E1000_WUS_FLX2 0x00040000 /* Flexible Filter 2 Match */ +#define E1000_WUS_FLX3 0x00080000 /* Flexible Filter 3 Match */ +#define E1000_WUS_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */ + +/* Management Control */ +#define E1000_MANC_SMBUS_EN 0x00000001 /* SMBus Enabled - RO */ +#define E1000_MANC_ASF_EN 0x00000002 /* ASF Enabled - RO */ +#define E1000_MANC_R_ON_FORCE 0x00000004 /* Reset on Force TCO - RO */ +#define E1000_MANC_RMCP_EN 0x00000100 /* Enable RCMP 026Fh Filtering */ +#define E1000_MANC_0298_EN 0x00000200 /* Enable RCMP 0298h Filtering */ +#define E1000_MANC_IPV4_EN 0x00000400 /* Enable IPv4 */ +#define E1000_MANC_IPV6_EN 0x00000800 /* Enable IPv6 */ +#define E1000_MANC_SNAP_EN 0x00001000 /* Accept LLC/SNAP */ +#define E1000_MANC_ARP_EN 0x00002000 /* Enable ARP Request Filtering */ +#define E1000_MANC_NEIGHBOR_EN 0x00004000 /* Enable Neighbor Discovery + * Filtering */ +#define E1000_MANC_ARP_RES_EN 0x00008000 /* Enable ARP response Filtering */ +#define E1000_MANC_TCO_RESET 0x00010000 /* TCO Reset Occurred */ +#define E1000_MANC_RCV_TCO_EN 0x00020000 /* Receive TCO Packets Enabled */ +#define E1000_MANC_REPORT_STATUS 0x00040000 /* Status Reporting Enabled */ +#define E1000_MANC_RCV_ALL 0x00080000 /* Receive All Enabled */ +#define E1000_MANC_BLK_PHY_RST_ON_IDE 0x00040000 /* Block phy resets */ +#define E1000_MANC_EN_MAC_ADDR_FILTER 0x00100000 /* Enable MAC address + * filtering */ +#define E1000_MANC_EN_MNG2HOST 0x00200000 /* Enable MNG packets to host + * memory */ +#define E1000_MANC_EN_IP_ADDR_FILTER 0x00400000 /* Enable IP address + * filtering */ +#define E1000_MANC_EN_XSUM_FILTER 0x00800000 /* Enable checksum filtering */ +#define E1000_MANC_BR_EN 0x01000000 /* Enable broadcast filtering */ +#define E1000_MANC_SMB_REQ 0x01000000 /* SMBus Request */ +#define E1000_MANC_SMB_GNT 0x02000000 /* SMBus Grant */ +#define E1000_MANC_SMB_CLK_IN 0x04000000 /* SMBus Clock In */ +#define E1000_MANC_SMB_DATA_IN 0x08000000 /* SMBus Data In */ +#define E1000_MANC_SMB_DATA_OUT 0x10000000 /* SMBus Data Out */ +#define E1000_MANC_SMB_CLK_OUT 0x20000000 /* SMBus Clock Out */ + +#define E1000_MANC_SMB_DATA_OUT_SHIFT 28 /* SMBus Data Out Shift */ +#define E1000_MANC_SMB_CLK_OUT_SHIFT 29 /* SMBus Clock Out Shift */ + +/* SW Semaphore Register */ +#define E1000_SWSM_SMBI 0x00000001 /* Driver Semaphore bit */ +#define E1000_SWSM_SWESMBI 0x00000002 /* FW Semaphore bit */ +#define E1000_SWSM_WMNG 0x00000004 /* Wake MNG Clock */ +#define E1000_SWSM_DRV_LOAD 0x00000008 /* Driver Loaded Bit */ + +/* FW Semaphore Register */ +#define E1000_FWSM_MODE_MASK 0x0000000E /* FW mode */ +#define E1000_FWSM_MODE_SHIFT 1 +#define E1000_FWSM_FW_VALID 0x00008000 /* FW established a valid mode */ + +#define E1000_FWSM_RSPCIPHY 0x00000040 /* Reset PHY on PCI reset */ +#define E1000_FWSM_DISSW 0x10000000 /* FW disable SW Write Access */ +#define E1000_FWSM_SKUSEL_MASK 0x60000000 /* LAN SKU select */ +#define E1000_FWSM_SKUEL_SHIFT 29 +#define E1000_FWSM_SKUSEL_EMB 0x0 /* Embedded SKU */ +#define E1000_FWSM_SKUSEL_CONS 0x1 /* Consumer SKU */ +#define E1000_FWSM_SKUSEL_PERF_100 0x2 /* Perf & Corp 10/100 SKU */ +#define E1000_FWSM_SKUSEL_PERF_GBE 0x3 /* Perf & Copr GbE SKU */ + +/* FFLT Debug Register */ +#define E1000_FFLT_DBG_INVC 0x00100000 /* Invalid /C/ code handling */ + +typedef enum { + e1000_mng_mode_none = 0, + e1000_mng_mode_asf, + e1000_mng_mode_pt, + e1000_mng_mode_ipmi, + e1000_mng_mode_host_interface_only +} e1000_mng_mode; + +/* Host Inteface Control Register */ +#define E1000_HICR_EN 0x00000001 /* Enable Bit - RO */ +#define E1000_HICR_C 0x00000002 /* Driver sets this bit when done + * to put command in RAM */ +#define E1000_HICR_SV 0x00000004 /* Status Validity */ +#define E1000_HICR_FWR 0x00000080 /* FW reset. Set by the Host */ + +/* Host Interface Command Interface - Address range 0x8800-0x8EFF */ +#define E1000_HI_MAX_DATA_LENGTH 252 /* Host Interface data length */ +#define E1000_HI_MAX_BLOCK_BYTE_LENGTH 1792 /* Number of bytes in range */ +#define E1000_HI_MAX_BLOCK_DWORD_LENGTH 448 /* Number of dwords in range */ +#define E1000_HI_COMMAND_TIMEOUT 500 /* Time in ms to process HI command */ + +struct e1000_host_command_header { + u8 command_id; + u8 command_length; + u8 command_options; /* I/F bits for command, status for return */ + u8 checksum; +}; +struct e1000_host_command_info { + struct e1000_host_command_header command_header; /* Command Head/Command Result Head has 4 bytes */ + u8 command_data[E1000_HI_MAX_DATA_LENGTH]; /* Command data can length 0..252 */ +}; + +/* Host SMB register #0 */ +#define E1000_HSMC0R_CLKIN 0x00000001 /* SMB Clock in */ +#define E1000_HSMC0R_DATAIN 0x00000002 /* SMB Data in */ +#define E1000_HSMC0R_DATAOUT 0x00000004 /* SMB Data out */ +#define E1000_HSMC0R_CLKOUT 0x00000008 /* SMB Clock out */ + +/* Host SMB register #1 */ +#define E1000_HSMC1R_CLKIN E1000_HSMC0R_CLKIN +#define E1000_HSMC1R_DATAIN E1000_HSMC0R_DATAIN +#define E1000_HSMC1R_DATAOUT E1000_HSMC0R_DATAOUT +#define E1000_HSMC1R_CLKOUT E1000_HSMC0R_CLKOUT + +/* FW Status Register */ +#define E1000_FWSTS_FWS_MASK 0x000000FF /* FW Status */ + +/* Wake Up Packet Length */ +#define E1000_WUPL_LENGTH_MASK 0x0FFF /* Only the lower 12 bits are valid */ + +#define E1000_MDALIGN 4096 + +/* PCI-Ex registers*/ + +/* PCI-Ex Control Register */ +#define E1000_GCR_RXD_NO_SNOOP 0x00000001 +#define E1000_GCR_RXDSCW_NO_SNOOP 0x00000002 +#define E1000_GCR_RXDSCR_NO_SNOOP 0x00000004 +#define E1000_GCR_TXD_NO_SNOOP 0x00000008 +#define E1000_GCR_TXDSCW_NO_SNOOP 0x00000010 +#define E1000_GCR_TXDSCR_NO_SNOOP 0x00000020 + +#define PCI_EX_NO_SNOOP_ALL (E1000_GCR_RXD_NO_SNOOP | \ + E1000_GCR_RXDSCW_NO_SNOOP | \ + E1000_GCR_RXDSCR_NO_SNOOP | \ + E1000_GCR_TXD_NO_SNOOP | \ + E1000_GCR_TXDSCW_NO_SNOOP | \ + E1000_GCR_TXDSCR_NO_SNOOP) + +#define PCI_EX_82566_SNOOP_ALL PCI_EX_NO_SNOOP_ALL + +#define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000 +/* Function Active and Power State to MNG */ +#define E1000_FACTPS_FUNC0_POWER_STATE_MASK 0x00000003 +#define E1000_FACTPS_LAN0_VALID 0x00000004 +#define E1000_FACTPS_FUNC0_AUX_EN 0x00000008 +#define E1000_FACTPS_FUNC1_POWER_STATE_MASK 0x000000C0 +#define E1000_FACTPS_FUNC1_POWER_STATE_SHIFT 6 +#define E1000_FACTPS_LAN1_VALID 0x00000100 +#define E1000_FACTPS_FUNC1_AUX_EN 0x00000200 +#define E1000_FACTPS_FUNC2_POWER_STATE_MASK 0x00003000 +#define E1000_FACTPS_FUNC2_POWER_STATE_SHIFT 12 +#define E1000_FACTPS_IDE_ENABLE 0x00004000 +#define E1000_FACTPS_FUNC2_AUX_EN 0x00008000 +#define E1000_FACTPS_FUNC3_POWER_STATE_MASK 0x000C0000 +#define E1000_FACTPS_FUNC3_POWER_STATE_SHIFT 18 +#define E1000_FACTPS_SP_ENABLE 0x00100000 +#define E1000_FACTPS_FUNC3_AUX_EN 0x00200000 +#define E1000_FACTPS_FUNC4_POWER_STATE_MASK 0x03000000 +#define E1000_FACTPS_FUNC4_POWER_STATE_SHIFT 24 +#define E1000_FACTPS_IPMI_ENABLE 0x04000000 +#define E1000_FACTPS_FUNC4_AUX_EN 0x08000000 +#define E1000_FACTPS_MNGCG 0x20000000 +#define E1000_FACTPS_LAN_FUNC_SEL 0x40000000 +#define E1000_FACTPS_PM_STATE_CHANGED 0x80000000 + +/* PCI-Ex Config Space */ +#define PCI_EX_LINK_STATUS 0x12 +#define PCI_EX_LINK_WIDTH_MASK 0x3F0 +#define PCI_EX_LINK_WIDTH_SHIFT 4 + +/* EEPROM Commands - Microwire */ +#define EEPROM_READ_OPCODE_MICROWIRE 0x6 /* EEPROM read opcode */ +#define EEPROM_WRITE_OPCODE_MICROWIRE 0x5 /* EEPROM write opcode */ +#define EEPROM_ERASE_OPCODE_MICROWIRE 0x7 /* EEPROM erase opcode */ +#define EEPROM_EWEN_OPCODE_MICROWIRE 0x13 /* EEPROM erase/write enable */ +#define EEPROM_EWDS_OPCODE_MICROWIRE 0x10 /* EEPROM erast/write disable */ + +/* EEPROM Commands - SPI */ +#define EEPROM_MAX_RETRY_SPI 5000 /* Max wait of 5ms, for RDY signal */ +#define EEPROM_READ_OPCODE_SPI 0x03 /* EEPROM read opcode */ +#define EEPROM_WRITE_OPCODE_SPI 0x02 /* EEPROM write opcode */ +#define EEPROM_A8_OPCODE_SPI 0x08 /* opcode bit-3 = address bit-8 */ +#define EEPROM_WREN_OPCODE_SPI 0x06 /* EEPROM set Write Enable latch */ +#define EEPROM_WRDI_OPCODE_SPI 0x04 /* EEPROM reset Write Enable latch */ +#define EEPROM_RDSR_OPCODE_SPI 0x05 /* EEPROM read Status register */ +#define EEPROM_WRSR_OPCODE_SPI 0x01 /* EEPROM write Status register */ +#define EEPROM_ERASE4K_OPCODE_SPI 0x20 /* EEPROM ERASE 4KB */ +#define EEPROM_ERASE64K_OPCODE_SPI 0xD8 /* EEPROM ERASE 64KB */ +#define EEPROM_ERASE256_OPCODE_SPI 0xDB /* EEPROM ERASE 256B */ + +/* EEPROM Size definitions */ +#define EEPROM_WORD_SIZE_SHIFT 6 +#define EEPROM_SIZE_SHIFT 10 +#define EEPROM_SIZE_MASK 0x1C00 + +/* EEPROM Word Offsets */ +#define EEPROM_COMPAT 0x0003 +#define EEPROM_ID_LED_SETTINGS 0x0004 +#define EEPROM_VERSION 0x0005 +#define EEPROM_SERDES_AMPLITUDE 0x0006 /* For SERDES output amplitude adjustment. */ +#define EEPROM_PHY_CLASS_WORD 0x0007 +#define EEPROM_INIT_CONTROL1_REG 0x000A +#define EEPROM_INIT_CONTROL2_REG 0x000F +#define EEPROM_SWDEF_PINS_CTRL_PORT_1 0x0010 +#define EEPROM_INIT_CONTROL3_PORT_B 0x0014 +#define EEPROM_INIT_3GIO_3 0x001A +#define EEPROM_SWDEF_PINS_CTRL_PORT_0 0x0020 +#define EEPROM_INIT_CONTROL3_PORT_A 0x0024 +#define EEPROM_CFG 0x0012 +#define EEPROM_FLASH_VERSION 0x0032 +#define EEPROM_CHECKSUM_REG 0x003F + +#define E1000_EEPROM_CFG_DONE 0x00040000 /* MNG config cycle done */ +#define E1000_EEPROM_CFG_DONE_PORT_1 0x00080000 /* ...for second port */ + +/* Word definitions for ID LED Settings */ +#define ID_LED_RESERVED_0000 0x0000 +#define ID_LED_RESERVED_FFFF 0xFFFF +#define ID_LED_RESERVED_82573 0xF746 +#define ID_LED_DEFAULT_82573 0x1811 +#define ID_LED_DEFAULT ((ID_LED_OFF1_ON2 << 12) | \ + (ID_LED_OFF1_OFF2 << 8) | \ + (ID_LED_DEF1_DEF2 << 4) | \ + (ID_LED_DEF1_DEF2)) +#define ID_LED_DEFAULT_ICH8LAN ((ID_LED_DEF1_DEF2 << 12) | \ + (ID_LED_DEF1_OFF2 << 8) | \ + (ID_LED_DEF1_ON2 << 4) | \ + (ID_LED_DEF1_DEF2)) +#define ID_LED_DEF1_DEF2 0x1 +#define ID_LED_DEF1_ON2 0x2 +#define ID_LED_DEF1_OFF2 0x3 +#define ID_LED_ON1_DEF2 0x4 +#define ID_LED_ON1_ON2 0x5 +#define ID_LED_ON1_OFF2 0x6 +#define ID_LED_OFF1_DEF2 0x7 +#define ID_LED_OFF1_ON2 0x8 +#define ID_LED_OFF1_OFF2 0x9 + +#define IGP_ACTIVITY_LED_MASK 0xFFFFF0FF +#define IGP_ACTIVITY_LED_ENABLE 0x0300 +#define IGP_LED3_MODE 0x07000000 + + +/* Mask bits for SERDES amplitude adjustment in Word 6 of the EEPROM */ +#define EEPROM_SERDES_AMPLITUDE_MASK 0x000F + +/* Mask bit for PHY class in Word 7 of the EEPROM */ +#define EEPROM_PHY_CLASS_A 0x8000 + +/* Mask bits for fields in Word 0x0a of the EEPROM */ +#define EEPROM_WORD0A_ILOS 0x0010 +#define EEPROM_WORD0A_SWDPIO 0x01E0 +#define EEPROM_WORD0A_LRST 0x0200 +#define EEPROM_WORD0A_FD 0x0400 +#define EEPROM_WORD0A_66MHZ 0x0800 + +/* Mask bits for fields in Word 0x0f of the EEPROM */ +#define EEPROM_WORD0F_PAUSE_MASK 0x3000 +#define EEPROM_WORD0F_PAUSE 0x1000 +#define EEPROM_WORD0F_ASM_DIR 0x2000 +#define EEPROM_WORD0F_ANE 0x0800 +#define EEPROM_WORD0F_SWPDIO_EXT 0x00F0 +#define EEPROM_WORD0F_LPLU 0x0001 + +/* Mask bits for fields in Word 0x10/0x20 of the EEPROM */ +#define EEPROM_WORD1020_GIGA_DISABLE 0x0010 +#define EEPROM_WORD1020_GIGA_DISABLE_NON_D0A 0x0008 + +/* Mask bits for fields in Word 0x1a of the EEPROM */ +#define EEPROM_WORD1A_ASPM_MASK 0x000C + +/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */ +#define EEPROM_SUM 0xBABA + +/* EEPROM Map defines (WORD OFFSETS)*/ +#define EEPROM_NODE_ADDRESS_BYTE_0 0 +#define EEPROM_PBA_BYTE_1 8 + +#define EEPROM_RESERVED_WORD 0xFFFF + +/* EEPROM Map Sizes (Byte Counts) */ +#define PBA_SIZE 4 + +/* Collision related configuration parameters */ +#define E1000_COLLISION_THRESHOLD 15 +#define E1000_CT_SHIFT 4 +/* Collision distance is a 0-based value that applies to + * half-duplex-capable hardware only. */ +#define E1000_COLLISION_DISTANCE 63 +#define E1000_COLLISION_DISTANCE_82542 64 +#define E1000_FDX_COLLISION_DISTANCE E1000_COLLISION_DISTANCE +#define E1000_HDX_COLLISION_DISTANCE E1000_COLLISION_DISTANCE +#define E1000_COLD_SHIFT 12 + +/* Number of Transmit and Receive Descriptors must be a multiple of 8 */ +#define REQ_TX_DESCRIPTOR_MULTIPLE 8 +#define REQ_RX_DESCRIPTOR_MULTIPLE 8 + +/* Default values for the transmit IPG register */ +#define DEFAULT_82542_TIPG_IPGT 10 +#define DEFAULT_82543_TIPG_IPGT_FIBER 9 +#define DEFAULT_82543_TIPG_IPGT_COPPER 8 + +#define E1000_TIPG_IPGT_MASK 0x000003FF +#define E1000_TIPG_IPGR1_MASK 0x000FFC00 +#define E1000_TIPG_IPGR2_MASK 0x3FF00000 + +#define DEFAULT_82542_TIPG_IPGR1 2 +#define DEFAULT_82543_TIPG_IPGR1 8 +#define E1000_TIPG_IPGR1_SHIFT 10 + +#define DEFAULT_82542_TIPG_IPGR2 10 +#define DEFAULT_82543_TIPG_IPGR2 6 +#define DEFAULT_80003ES2LAN_TIPG_IPGR2 7 +#define E1000_TIPG_IPGR2_SHIFT 20 + +#define DEFAULT_80003ES2LAN_TIPG_IPGT_10_100 0x00000009 +#define DEFAULT_80003ES2LAN_TIPG_IPGT_1000 0x00000008 +#define E1000_TXDMAC_DPP 0x00000001 + +/* Adaptive IFS defines */ +#define TX_THRESHOLD_START 8 +#define TX_THRESHOLD_INCREMENT 10 +#define TX_THRESHOLD_DECREMENT 1 +#define TX_THRESHOLD_STOP 190 +#define TX_THRESHOLD_DISABLE 0 +#define TX_THRESHOLD_TIMER_MS 10000 +#define MIN_NUM_XMITS 1000 +#define IFS_MAX 80 +#define IFS_STEP 10 +#define IFS_MIN 40 +#define IFS_RATIO 4 + +/* Extended Configuration Control and Size */ +#define E1000_EXTCNF_CTRL_PCIE_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_PHY_WRITE_ENABLE 0x00000002 +#define E1000_EXTCNF_CTRL_D_UD_ENABLE 0x00000004 +#define E1000_EXTCNF_CTRL_D_UD_LATENCY 0x00000008 +#define E1000_EXTCNF_CTRL_D_UD_OWNER 0x00000010 +#define E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP 0x00000020 +#define E1000_EXTCNF_CTRL_MDIO_HW_OWNERSHIP 0x00000040 +#define E1000_EXTCNF_CTRL_EXT_CNF_POINTER 0x0FFF0000 + +#define E1000_EXTCNF_SIZE_EXT_PHY_LENGTH 0x000000FF +#define E1000_EXTCNF_SIZE_EXT_DOCK_LENGTH 0x0000FF00 +#define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH 0x00FF0000 +#define E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_SWFLAG 0x00000020 + +/* PBA constants */ +#define E1000_PBA_8K 0x0008 /* 8KB, default Rx allocation */ +#define E1000_PBA_12K 0x000C /* 12KB, default Rx allocation */ +#define E1000_PBA_16K 0x0010 /* 16KB, default TX allocation */ +#define E1000_PBA_20K 0x0014 +#define E1000_PBA_22K 0x0016 +#define E1000_PBA_24K 0x0018 +#define E1000_PBA_30K 0x001E +#define E1000_PBA_32K 0x0020 +#define E1000_PBA_34K 0x0022 +#define E1000_PBA_38K 0x0026 +#define E1000_PBA_40K 0x0028 +#define E1000_PBA_48K 0x0030 /* 48KB, default RX allocation */ + +#define E1000_PBS_16K E1000_PBA_16K + +/* Flow Control Constants */ +#define FLOW_CONTROL_ADDRESS_LOW 0x00C28001 +#define FLOW_CONTROL_ADDRESS_HIGH 0x00000100 +#define FLOW_CONTROL_TYPE 0x8808 + +/* The historical defaults for the flow control values are given below. */ +#define FC_DEFAULT_HI_THRESH (0x8000) /* 32KB */ +#define FC_DEFAULT_LO_THRESH (0x4000) /* 16KB */ +#define FC_DEFAULT_TX_TIMER (0x100) /* ~130 us */ + +/* PCIX Config space */ +#define PCIX_COMMAND_REGISTER 0xE6 +#define PCIX_STATUS_REGISTER_LO 0xE8 +#define PCIX_STATUS_REGISTER_HI 0xEA + +#define PCIX_COMMAND_MMRBC_MASK 0x000C +#define PCIX_COMMAND_MMRBC_SHIFT 0x2 +#define PCIX_STATUS_HI_MMRBC_MASK 0x0060 +#define PCIX_STATUS_HI_MMRBC_SHIFT 0x5 +#define PCIX_STATUS_HI_MMRBC_4K 0x3 +#define PCIX_STATUS_HI_MMRBC_2K 0x2 + + +/* Number of bits required to shift right the "pause" bits from the + * EEPROM (bits 13:12) to the "pause" (bits 8:7) field in the TXCW register. + */ +#define PAUSE_SHIFT 5 + +/* Number of bits required to shift left the "SWDPIO" bits from the + * EEPROM (bits 8:5) to the "SWDPIO" (bits 25:22) field in the CTRL register. + */ +#define SWDPIO_SHIFT 17 + +/* Number of bits required to shift left the "SWDPIO_EXT" bits from the + * EEPROM word F (bits 7:4) to the bits 11:8 of The Extended CTRL register. + */ +#define SWDPIO__EXT_SHIFT 4 + +/* Number of bits required to shift left the "ILOS" bit from the EEPROM + * (bit 4) to the "ILOS" (bit 7) field in the CTRL register. + */ +#define ILOS_SHIFT 3 + + +#define RECEIVE_BUFFER_ALIGN_SIZE (256) + +/* Number of milliseconds we wait for auto-negotiation to complete */ +#define LINK_UP_TIMEOUT 500 + +/* Number of 100 microseconds we wait for PCI Express master disable */ +#define MASTER_DISABLE_TIMEOUT 800 +/* Number of milliseconds we wait for Eeprom auto read bit done after MAC reset */ +#define AUTO_READ_DONE_TIMEOUT 10 +/* Number of milliseconds we wait for PHY configuration done after MAC reset */ +#define PHY_CFG_TIMEOUT 100 + +#define E1000_TX_BUFFER_SIZE ((u32)1514) + +/* The carrier extension symbol, as received by the NIC. */ +#define CARRIER_EXTENSION 0x0F + +/* TBI_ACCEPT macro definition: + * + * This macro requires: + * adapter = a pointer to struct e1000_hw + * status = the 8 bit status field of the RX descriptor with EOP set + * error = the 8 bit error field of the RX descriptor with EOP set + * length = the sum of all the length fields of the RX descriptors that + * make up the current frame + * last_byte = the last byte of the frame DMAed by the hardware + * max_frame_length = the maximum frame length we want to accept. + * min_frame_length = the minimum frame length we want to accept. + * + * This macro is a conditional that should be used in the interrupt + * handler's Rx processing routine when RxErrors have been detected. + * + * Typical use: + * ... + * if (TBI_ACCEPT) { + * accept_frame = true; + * e1000_tbi_adjust_stats(adapter, MacAddress); + * frame_length--; + * } else { + * accept_frame = false; + * } + * ... + */ + +#define TBI_ACCEPT(adapter, status, errors, length, last_byte) \ + ((adapter)->tbi_compatibility_on && \ + (((errors) & E1000_RXD_ERR_FRAME_ERR_MASK) == E1000_RXD_ERR_CE) && \ + ((last_byte) == CARRIER_EXTENSION) && \ + (((status) & E1000_RXD_STAT_VP) ? \ + (((length) > ((adapter)->min_frame_size - VLAN_TAG_SIZE)) && \ + ((length) <= ((adapter)->max_frame_size + 1))) : \ + (((length) > (adapter)->min_frame_size) && \ + ((length) <= ((adapter)->max_frame_size + VLAN_TAG_SIZE + 1))))) + + +/* Structures, enums, and macros for the PHY */ + +/* Bit definitions for the Management Data IO (MDIO) and Management Data + * Clock (MDC) pins in the Device Control Register. + */ +#define E1000_CTRL_PHY_RESET_DIR E1000_CTRL_SWDPIO0 +#define E1000_CTRL_PHY_RESET E1000_CTRL_SWDPIN0 +#define E1000_CTRL_MDIO_DIR E1000_CTRL_SWDPIO2 +#define E1000_CTRL_MDIO E1000_CTRL_SWDPIN2 +#define E1000_CTRL_MDC_DIR E1000_CTRL_SWDPIO3 +#define E1000_CTRL_MDC E1000_CTRL_SWDPIN3 +#define E1000_CTRL_PHY_RESET_DIR4 E1000_CTRL_EXT_SDP4_DIR +#define E1000_CTRL_PHY_RESET4 E1000_CTRL_EXT_SDP4_DATA + +/* PHY 1000 MII Register/Bit Definitions */ +/* PHY Registers defined by IEEE */ +#define PHY_CTRL 0x00 /* Control Register */ +#define PHY_STATUS 0x01 /* Status Regiser */ +#define PHY_ID1 0x02 /* Phy Id Reg (word 1) */ +#define PHY_ID2 0x03 /* Phy Id Reg (word 2) */ +#define PHY_AUTONEG_ADV 0x04 /* Autoneg Advertisement */ +#define PHY_LP_ABILITY 0x05 /* Link Partner Ability (Base Page) */ +#define PHY_AUTONEG_EXP 0x06 /* Autoneg Expansion Reg */ +#define PHY_NEXT_PAGE_TX 0x07 /* Next Page TX */ +#define PHY_LP_NEXT_PAGE 0x08 /* Link Partner Next Page */ +#define PHY_1000T_CTRL 0x09 /* 1000Base-T Control Reg */ +#define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Reg */ +#define PHY_EXT_STATUS 0x0F /* Extended Status Reg */ + +#define MAX_PHY_REG_ADDRESS 0x1F /* 5 bit address bus (0-0x1F) */ +#define MAX_PHY_MULTI_PAGE_REG 0xF /* Registers equal on all pages */ + +/* M88E1000 Specific Registers */ +#define M88E1000_PHY_SPEC_CTRL 0x10 /* PHY Specific Control Register */ +#define M88E1000_PHY_SPEC_STATUS 0x11 /* PHY Specific Status Register */ +#define M88E1000_INT_ENABLE 0x12 /* Interrupt Enable Register */ +#define M88E1000_INT_STATUS 0x13 /* Interrupt Status Register */ +#define M88E1000_EXT_PHY_SPEC_CTRL 0x14 /* Extended PHY Specific Control */ +#define M88E1000_RX_ERR_CNTR 0x15 /* Receive Error Counter */ + +#define M88E1000_PHY_EXT_CTRL 0x1A /* PHY extend control register */ +#define M88E1000_PHY_PAGE_SELECT 0x1D /* Reg 29 for page number setting */ +#define M88E1000_PHY_GEN_CONTROL 0x1E /* Its meaning depends on reg 29 */ +#define M88E1000_PHY_VCO_REG_BIT8 0x100 /* Bits 8 & 11 are adjusted for */ +#define M88E1000_PHY_VCO_REG_BIT11 0x800 /* improved BER performance */ + +#define IGP01E1000_IEEE_REGS_PAGE 0x0000 +#define IGP01E1000_IEEE_RESTART_AUTONEG 0x3300 +#define IGP01E1000_IEEE_FORCE_GIGA 0x0140 + +/* IGP01E1000 Specific Registers */ +#define IGP01E1000_PHY_PORT_CONFIG 0x10 /* PHY Specific Port Config Register */ +#define IGP01E1000_PHY_PORT_STATUS 0x11 /* PHY Specific Status Register */ +#define IGP01E1000_PHY_PORT_CTRL 0x12 /* PHY Specific Control Register */ +#define IGP01E1000_PHY_LINK_HEALTH 0x13 /* PHY Link Health Register */ +#define IGP01E1000_GMII_FIFO 0x14 /* GMII FIFO Register */ +#define IGP01E1000_PHY_CHANNEL_QUALITY 0x15 /* PHY Channel Quality Register */ +#define IGP02E1000_PHY_POWER_MGMT 0x19 +#define IGP01E1000_PHY_PAGE_SELECT 0x1F /* PHY Page Select Core Register */ + +/* IGP01E1000 AGC Registers - stores the cable length values*/ +#define IGP01E1000_PHY_AGC_A 0x1172 +#define IGP01E1000_PHY_AGC_B 0x1272 +#define IGP01E1000_PHY_AGC_C 0x1472 +#define IGP01E1000_PHY_AGC_D 0x1872 + +/* IGP02E1000 AGC Registers for cable length values */ +#define IGP02E1000_PHY_AGC_A 0x11B1 +#define IGP02E1000_PHY_AGC_B 0x12B1 +#define IGP02E1000_PHY_AGC_C 0x14B1 +#define IGP02E1000_PHY_AGC_D 0x18B1 + +/* IGP01E1000 DSP Reset Register */ +#define IGP01E1000_PHY_DSP_RESET 0x1F33 +#define IGP01E1000_PHY_DSP_SET 0x1F71 +#define IGP01E1000_PHY_DSP_FFE 0x1F35 + +#define IGP01E1000_PHY_CHANNEL_NUM 4 +#define IGP02E1000_PHY_CHANNEL_NUM 4 + +#define IGP01E1000_PHY_AGC_PARAM_A 0x1171 +#define IGP01E1000_PHY_AGC_PARAM_B 0x1271 +#define IGP01E1000_PHY_AGC_PARAM_C 0x1471 +#define IGP01E1000_PHY_AGC_PARAM_D 0x1871 + +#define IGP01E1000_PHY_EDAC_MU_INDEX 0xC000 +#define IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS 0x8000 + +#define IGP01E1000_PHY_ANALOG_TX_STATE 0x2890 +#define IGP01E1000_PHY_ANALOG_CLASS_A 0x2000 +#define IGP01E1000_PHY_FORCE_ANALOG_ENABLE 0x0004 +#define IGP01E1000_PHY_DSP_FFE_CM_CP 0x0069 + +#define IGP01E1000_PHY_DSP_FFE_DEFAULT 0x002A +/* IGP01E1000 PCS Initialization register - stores the polarity status when + * speed = 1000 Mbps. */ +#define IGP01E1000_PHY_PCS_INIT_REG 0x00B4 +#define IGP01E1000_PHY_PCS_CTRL_REG 0x00B5 + +#define IGP01E1000_ANALOG_REGS_PAGE 0x20C0 + +/* Bits... + * 15-5: page + * 4-0: register offset + */ +#define GG82563_PAGE_SHIFT 5 +#define GG82563_REG(page, reg) \ + (((page) << GG82563_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS)) +#define GG82563_MIN_ALT_REG 30 + +/* GG82563 Specific Registers */ +#define GG82563_PHY_SPEC_CTRL \ + GG82563_REG(0, 16) /* PHY Specific Control */ +#define GG82563_PHY_SPEC_STATUS \ + GG82563_REG(0, 17) /* PHY Specific Status */ +#define GG82563_PHY_INT_ENABLE \ + GG82563_REG(0, 18) /* Interrupt Enable */ +#define GG82563_PHY_SPEC_STATUS_2 \ + GG82563_REG(0, 19) /* PHY Specific Status 2 */ +#define GG82563_PHY_RX_ERR_CNTR \ + GG82563_REG(0, 21) /* Receive Error Counter */ +#define GG82563_PHY_PAGE_SELECT \ + GG82563_REG(0, 22) /* Page Select */ +#define GG82563_PHY_SPEC_CTRL_2 \ + GG82563_REG(0, 26) /* PHY Specific Control 2 */ +#define GG82563_PHY_PAGE_SELECT_ALT \ + GG82563_REG(0, 29) /* Alternate Page Select */ +#define GG82563_PHY_TEST_CLK_CTRL \ + GG82563_REG(0, 30) /* Test Clock Control (use reg. 29 to select) */ + +#define GG82563_PHY_MAC_SPEC_CTRL \ + GG82563_REG(2, 21) /* MAC Specific Control Register */ +#define GG82563_PHY_MAC_SPEC_CTRL_2 \ + GG82563_REG(2, 26) /* MAC Specific Control 2 */ + +#define GG82563_PHY_DSP_DISTANCE \ + GG82563_REG(5, 26) /* DSP Distance */ + +/* Page 193 - Port Control Registers */ +#define GG82563_PHY_KMRN_MODE_CTRL \ + GG82563_REG(193, 16) /* Kumeran Mode Control */ +#define GG82563_PHY_PORT_RESET \ + GG82563_REG(193, 17) /* Port Reset */ +#define GG82563_PHY_REVISION_ID \ + GG82563_REG(193, 18) /* Revision ID */ +#define GG82563_PHY_DEVICE_ID \ + GG82563_REG(193, 19) /* Device ID */ +#define GG82563_PHY_PWR_MGMT_CTRL \ + GG82563_REG(193, 20) /* Power Management Control */ +#define GG82563_PHY_RATE_ADAPT_CTRL \ + GG82563_REG(193, 25) /* Rate Adaptation Control */ + +/* Page 194 - KMRN Registers */ +#define GG82563_PHY_KMRN_FIFO_CTRL_STAT \ + GG82563_REG(194, 16) /* FIFO's Control/Status */ +#define GG82563_PHY_KMRN_CTRL \ + GG82563_REG(194, 17) /* Control */ +#define GG82563_PHY_INBAND_CTRL \ + GG82563_REG(194, 18) /* Inband Control */ +#define GG82563_PHY_KMRN_DIAGNOSTIC \ + GG82563_REG(194, 19) /* Diagnostic */ +#define GG82563_PHY_ACK_TIMEOUTS \ + GG82563_REG(194, 20) /* Acknowledge Timeouts */ +#define GG82563_PHY_ADV_ABILITY \ + GG82563_REG(194, 21) /* Advertised Ability */ +#define GG82563_PHY_LINK_PARTNER_ADV_ABILITY \ + GG82563_REG(194, 23) /* Link Partner Advertised Ability */ +#define GG82563_PHY_ADV_NEXT_PAGE \ + GG82563_REG(194, 24) /* Advertised Next Page */ +#define GG82563_PHY_LINK_PARTNER_ADV_NEXT_PAGE \ + GG82563_REG(194, 25) /* Link Partner Advertised Next page */ +#define GG82563_PHY_KMRN_MISC \ + GG82563_REG(194, 26) /* Misc. */ + +/* PHY Control Register */ +#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */ +#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */ +#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */ +#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */ +#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */ +#define MII_CR_POWER_DOWN 0x0800 /* Power down */ +#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */ +#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */ +#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */ +#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */ + +/* PHY Status Register */ +#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */ +#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */ +#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */ +#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */ +#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */ +#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */ +#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */ +#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */ +#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */ +#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */ +#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */ +#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */ +#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */ +#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */ +#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */ + +/* Autoneg Advertisement Register */ +#define NWAY_AR_SELECTOR_FIELD 0x0001 /* indicates IEEE 802.3 CSMA/CD */ +#define NWAY_AR_10T_HD_CAPS 0x0020 /* 10T Half Duplex Capable */ +#define NWAY_AR_10T_FD_CAPS 0x0040 /* 10T Full Duplex Capable */ +#define NWAY_AR_100TX_HD_CAPS 0x0080 /* 100TX Half Duplex Capable */ +#define NWAY_AR_100TX_FD_CAPS 0x0100 /* 100TX Full Duplex Capable */ +#define NWAY_AR_100T4_CAPS 0x0200 /* 100T4 Capable */ +#define NWAY_AR_PAUSE 0x0400 /* Pause operation desired */ +#define NWAY_AR_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */ +#define NWAY_AR_REMOTE_FAULT 0x2000 /* Remote Fault detected */ +#define NWAY_AR_NEXT_PAGE 0x8000 /* Next Page ability supported */ + +/* Link Partner Ability Register (Base Page) */ +#define NWAY_LPAR_SELECTOR_FIELD 0x0000 /* LP protocol selector field */ +#define NWAY_LPAR_10T_HD_CAPS 0x0020 /* LP is 10T Half Duplex Capable */ +#define NWAY_LPAR_10T_FD_CAPS 0x0040 /* LP is 10T Full Duplex Capable */ +#define NWAY_LPAR_100TX_HD_CAPS 0x0080 /* LP is 100TX Half Duplex Capable */ +#define NWAY_LPAR_100TX_FD_CAPS 0x0100 /* LP is 100TX Full Duplex Capable */ +#define NWAY_LPAR_100T4_CAPS 0x0200 /* LP is 100T4 Capable */ +#define NWAY_LPAR_PAUSE 0x0400 /* LP Pause operation desired */ +#define NWAY_LPAR_ASM_DIR 0x0800 /* LP Asymmetric Pause Direction bit */ +#define NWAY_LPAR_REMOTE_FAULT 0x2000 /* LP has detected Remote Fault */ +#define NWAY_LPAR_ACKNOWLEDGE 0x4000 /* LP has rx'd link code word */ +#define NWAY_LPAR_NEXT_PAGE 0x8000 /* Next Page ability supported */ + +/* Autoneg Expansion Register */ +#define NWAY_ER_LP_NWAY_CAPS 0x0001 /* LP has Auto Neg Capability */ +#define NWAY_ER_PAGE_RXD 0x0002 /* LP is 10T Half Duplex Capable */ +#define NWAY_ER_NEXT_PAGE_CAPS 0x0004 /* LP is 10T Full Duplex Capable */ +#define NWAY_ER_LP_NEXT_PAGE_CAPS 0x0008 /* LP is 100TX Half Duplex Capable */ +#define NWAY_ER_PAR_DETECT_FAULT 0x0010 /* LP is 100TX Full Duplex Capable */ + +/* Next Page TX Register */ +#define NPTX_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */ +#define NPTX_TOGGLE 0x0800 /* Toggles between exchanges + * of different NP + */ +#define NPTX_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg + * 0 = cannot comply with msg + */ +#define NPTX_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */ +#define NPTX_NEXT_PAGE 0x8000 /* 1 = addition NP will follow + * 0 = sending last NP + */ + +/* Link Partner Next Page Register */ +#define LP_RNPR_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */ +#define LP_RNPR_TOGGLE 0x0800 /* Toggles between exchanges + * of different NP + */ +#define LP_RNPR_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg + * 0 = cannot comply with msg + */ +#define LP_RNPR_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */ +#define LP_RNPR_ACKNOWLDGE 0x4000 /* 1 = ACK / 0 = NO ACK */ +#define LP_RNPR_NEXT_PAGE 0x8000 /* 1 = addition NP will follow + * 0 = sending last NP + */ + +/* 1000BASE-T Control Register */ +#define CR_1000T_ASYM_PAUSE 0x0080 /* Advertise asymmetric pause bit */ +#define CR_1000T_HD_CAPS 0x0100 /* Advertise 1000T HD capability */ +#define CR_1000T_FD_CAPS 0x0200 /* Advertise 1000T FD capability */ +#define CR_1000T_REPEATER_DTE 0x0400 /* 1=Repeater/switch device port */ + /* 0=DTE device */ +#define CR_1000T_MS_VALUE 0x0800 /* 1=Configure PHY as Master */ + /* 0=Configure PHY as Slave */ +#define CR_1000T_MS_ENABLE 0x1000 /* 1=Master/Slave manual config value */ + /* 0=Automatic Master/Slave config */ +#define CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */ +#define CR_1000T_TEST_MODE_1 0x2000 /* Transmit Waveform test */ +#define CR_1000T_TEST_MODE_2 0x4000 /* Master Transmit Jitter test */ +#define CR_1000T_TEST_MODE_3 0x6000 /* Slave Transmit Jitter test */ +#define CR_1000T_TEST_MODE_4 0x8000 /* Transmitter Distortion test */ + +/* 1000BASE-T Status Register */ +#define SR_1000T_IDLE_ERROR_CNT 0x00FF /* Num idle errors since last read */ +#define SR_1000T_ASYM_PAUSE_DIR 0x0100 /* LP asymmetric pause direction bit */ +#define SR_1000T_LP_HD_CAPS 0x0400 /* LP is 1000T HD capable */ +#define SR_1000T_LP_FD_CAPS 0x0800 /* LP is 1000T FD capable */ +#define SR_1000T_REMOTE_RX_STATUS 0x1000 /* Remote receiver OK */ +#define SR_1000T_LOCAL_RX_STATUS 0x2000 /* Local receiver OK */ +#define SR_1000T_MS_CONFIG_RES 0x4000 /* 1=Local TX is Master, 0=Slave */ +#define SR_1000T_MS_CONFIG_FAULT 0x8000 /* Master/Slave config fault */ +#define SR_1000T_REMOTE_RX_STATUS_SHIFT 12 +#define SR_1000T_LOCAL_RX_STATUS_SHIFT 13 +#define SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT 5 +#define FFE_IDLE_ERR_COUNT_TIMEOUT_20 20 +#define FFE_IDLE_ERR_COUNT_TIMEOUT_100 100 + +/* Extended Status Register */ +#define IEEE_ESR_1000T_HD_CAPS 0x1000 /* 1000T HD capable */ +#define IEEE_ESR_1000T_FD_CAPS 0x2000 /* 1000T FD capable */ +#define IEEE_ESR_1000X_HD_CAPS 0x4000 /* 1000X HD capable */ +#define IEEE_ESR_1000X_FD_CAPS 0x8000 /* 1000X FD capable */ + +#define PHY_TX_POLARITY_MASK 0x0100 /* register 10h bit 8 (polarity bit) */ +#define PHY_TX_NORMAL_POLARITY 0 /* register 10h bit 8 (normal polarity) */ + +#define AUTO_POLARITY_DISABLE 0x0010 /* register 11h bit 4 */ + /* (0=enable, 1=disable) */ + +/* M88E1000 PHY Specific Control Register */ +#define M88E1000_PSCR_JABBER_DISABLE 0x0001 /* 1=Jabber Function disabled */ +#define M88E1000_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reversal enabled */ +#define M88E1000_PSCR_SQE_TEST 0x0004 /* 1=SQE Test enabled */ +#define M88E1000_PSCR_CLK125_DISABLE 0x0010 /* 1=CLK125 low, + * 0=CLK125 toggling + */ +#define M88E1000_PSCR_MDI_MANUAL_MODE 0x0000 /* MDI Crossover Mode bits 6:5 */ + /* Manual MDI configuration */ +#define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */ +#define M88E1000_PSCR_AUTO_X_1000T 0x0040 /* 1000BASE-T: Auto crossover, + * 100BASE-TX/10BASE-T: + * MDI Mode + */ +#define M88E1000_PSCR_AUTO_X_MODE 0x0060 /* Auto crossover enabled + * all speeds. + */ +#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE 0x0080 + /* 1=Enable Extended 10BASE-T distance + * (Lower 10BASE-T RX Threshold) + * 0=Normal 10BASE-T RX Threshold */ +#define M88E1000_PSCR_MII_5BIT_ENABLE 0x0100 + /* 1=5-Bit interface in 100BASE-TX + * 0=MII interface in 100BASE-TX */ +#define M88E1000_PSCR_SCRAMBLER_DISABLE 0x0200 /* 1=Scrambler disable */ +#define M88E1000_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force link good */ +#define M88E1000_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */ + +#define M88E1000_PSCR_POLARITY_REVERSAL_SHIFT 1 +#define M88E1000_PSCR_AUTO_X_MODE_SHIFT 5 +#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7 + +/* M88E1000 PHY Specific Status Register */ +#define M88E1000_PSSR_JABBER 0x0001 /* 1=Jabber */ +#define M88E1000_PSSR_REV_POLARITY 0x0002 /* 1=Polarity reversed */ +#define M88E1000_PSSR_DOWNSHIFT 0x0020 /* 1=Downshifted */ +#define M88E1000_PSSR_MDIX 0x0040 /* 1=MDIX; 0=MDI */ +#define M88E1000_PSSR_CABLE_LENGTH 0x0380 /* 0=<50M;1=50-80M;2=80-110M; + * 3=110-140M;4=>140M */ +#define M88E1000_PSSR_LINK 0x0400 /* 1=Link up, 0=Link down */ +#define M88E1000_PSSR_SPD_DPLX_RESOLVED 0x0800 /* 1=Speed & Duplex resolved */ +#define M88E1000_PSSR_PAGE_RCVD 0x1000 /* 1=Page received */ +#define M88E1000_PSSR_DPLX 0x2000 /* 1=Duplex 0=Half Duplex */ +#define M88E1000_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */ +#define M88E1000_PSSR_10MBS 0x0000 /* 00=10Mbs */ +#define M88E1000_PSSR_100MBS 0x4000 /* 01=100Mbs */ +#define M88E1000_PSSR_1000MBS 0x8000 /* 10=1000Mbs */ + +#define M88E1000_PSSR_REV_POLARITY_SHIFT 1 +#define M88E1000_PSSR_DOWNSHIFT_SHIFT 5 +#define M88E1000_PSSR_MDIX_SHIFT 6 +#define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7 + +/* M88E1000 Extended PHY Specific Control Register */ +#define M88E1000_EPSCR_FIBER_LOOPBACK 0x4000 /* 1=Fiber loopback */ +#define M88E1000_EPSCR_DOWN_NO_IDLE 0x8000 /* 1=Lost lock detect enabled. + * Will assert lost lock and bring + * link down if idle not seen + * within 1ms in 1000BASE-T + */ +/* Number of times we will attempt to autonegotiate before downshifting if we + * are the master */ +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK 0x0C00 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_1X 0x0000 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_2X 0x0400 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_3X 0x0800 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_4X 0x0C00 +/* Number of times we will attempt to autonegotiate before downshifting if we + * are the slave */ +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK 0x0300 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_DIS 0x0000 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X 0x0100 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_2X 0x0200 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_3X 0x0300 +#define M88E1000_EPSCR_TX_CLK_2_5 0x0060 /* 2.5 MHz TX_CLK */ +#define M88E1000_EPSCR_TX_CLK_25 0x0070 /* 25 MHz TX_CLK */ +#define M88E1000_EPSCR_TX_CLK_0 0x0000 /* NO TX_CLK */ + +/* M88EC018 Rev 2 specific DownShift settings */ +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK 0x0E00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_1X 0x0000 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_2X 0x0200 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_3X 0x0400 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_4X 0x0600 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X 0x0800 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_6X 0x0A00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_7X 0x0C00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_8X 0x0E00 + +/* IGP01E1000 Specific Port Config Register - R/W */ +#define IGP01E1000_PSCFR_AUTO_MDIX_PAR_DETECT 0x0010 +#define IGP01E1000_PSCFR_PRE_EN 0x0020 +#define IGP01E1000_PSCFR_SMART_SPEED 0x0080 +#define IGP01E1000_PSCFR_DISABLE_TPLOOPBACK 0x0100 +#define IGP01E1000_PSCFR_DISABLE_JABBER 0x0400 +#define IGP01E1000_PSCFR_DISABLE_TRANSMIT 0x2000 + +/* IGP01E1000 Specific Port Status Register - R/O */ +#define IGP01E1000_PSSR_AUTONEG_FAILED 0x0001 /* RO LH SC */ +#define IGP01E1000_PSSR_POLARITY_REVERSED 0x0002 +#define IGP01E1000_PSSR_CABLE_LENGTH 0x007C +#define IGP01E1000_PSSR_FULL_DUPLEX 0x0200 +#define IGP01E1000_PSSR_LINK_UP 0x0400 +#define IGP01E1000_PSSR_MDIX 0x0800 +#define IGP01E1000_PSSR_SPEED_MASK 0xC000 /* speed bits mask */ +#define IGP01E1000_PSSR_SPEED_10MBPS 0x4000 +#define IGP01E1000_PSSR_SPEED_100MBPS 0x8000 +#define IGP01E1000_PSSR_SPEED_1000MBPS 0xC000 +#define IGP01E1000_PSSR_CABLE_LENGTH_SHIFT 0x0002 /* shift right 2 */ +#define IGP01E1000_PSSR_MDIX_SHIFT 0x000B /* shift right 11 */ + +/* IGP01E1000 Specific Port Control Register - R/W */ +#define IGP01E1000_PSCR_TP_LOOPBACK 0x0010 +#define IGP01E1000_PSCR_CORRECT_NC_SCMBLR 0x0200 +#define IGP01E1000_PSCR_TEN_CRS_SELECT 0x0400 +#define IGP01E1000_PSCR_FLIP_CHIP 0x0800 +#define IGP01E1000_PSCR_AUTO_MDIX 0x1000 +#define IGP01E1000_PSCR_FORCE_MDI_MDIX 0x2000 /* 0-MDI, 1-MDIX */ + +/* IGP01E1000 Specific Port Link Health Register */ +#define IGP01E1000_PLHR_SS_DOWNGRADE 0x8000 +#define IGP01E1000_PLHR_GIG_SCRAMBLER_ERROR 0x4000 +#define IGP01E1000_PLHR_MASTER_FAULT 0x2000 +#define IGP01E1000_PLHR_MASTER_RESOLUTION 0x1000 +#define IGP01E1000_PLHR_GIG_REM_RCVR_NOK 0x0800 /* LH */ +#define IGP01E1000_PLHR_IDLE_ERROR_CNT_OFLOW 0x0400 /* LH */ +#define IGP01E1000_PLHR_DATA_ERR_1 0x0200 /* LH */ +#define IGP01E1000_PLHR_DATA_ERR_0 0x0100 +#define IGP01E1000_PLHR_AUTONEG_FAULT 0x0040 +#define IGP01E1000_PLHR_AUTONEG_ACTIVE 0x0010 +#define IGP01E1000_PLHR_VALID_CHANNEL_D 0x0008 +#define IGP01E1000_PLHR_VALID_CHANNEL_C 0x0004 +#define IGP01E1000_PLHR_VALID_CHANNEL_B 0x0002 +#define IGP01E1000_PLHR_VALID_CHANNEL_A 0x0001 + +/* IGP01E1000 Channel Quality Register */ +#define IGP01E1000_MSE_CHANNEL_D 0x000F +#define IGP01E1000_MSE_CHANNEL_C 0x00F0 +#define IGP01E1000_MSE_CHANNEL_B 0x0F00 +#define IGP01E1000_MSE_CHANNEL_A 0xF000 + +#define IGP02E1000_PM_SPD 0x0001 /* Smart Power Down */ +#define IGP02E1000_PM_D3_LPLU 0x0004 /* Enable LPLU in non-D0a modes */ +#define IGP02E1000_PM_D0_LPLU 0x0002 /* Enable LPLU in D0a mode */ + +/* IGP01E1000 DSP reset macros */ +#define DSP_RESET_ENABLE 0x0 +#define DSP_RESET_DISABLE 0x2 +#define E1000_MAX_DSP_RESETS 10 + +/* IGP01E1000 & IGP02E1000 AGC Registers */ + +#define IGP01E1000_AGC_LENGTH_SHIFT 7 /* Coarse - 13:11, Fine - 10:7 */ +#define IGP02E1000_AGC_LENGTH_SHIFT 9 /* Coarse - 15:13, Fine - 12:9 */ + +/* IGP02E1000 AGC Register Length 9-bit mask */ +#define IGP02E1000_AGC_LENGTH_MASK 0x7F + +/* 7 bits (3 Coarse + 4 Fine) --> 128 optional values */ +#define IGP01E1000_AGC_LENGTH_TABLE_SIZE 128 +#define IGP02E1000_AGC_LENGTH_TABLE_SIZE 113 + +/* The precision error of the cable length is +/- 10 meters */ +#define IGP01E1000_AGC_RANGE 10 +#define IGP02E1000_AGC_RANGE 15 + +/* IGP01E1000 PCS Initialization register */ +/* bits 3:6 in the PCS registers stores the channels polarity */ +#define IGP01E1000_PHY_POLARITY_MASK 0x0078 + +/* IGP01E1000 GMII FIFO Register */ +#define IGP01E1000_GMII_FLEX_SPD 0x10 /* Enable flexible speed + * on Link-Up */ +#define IGP01E1000_GMII_SPD 0x20 /* Enable SPD */ + +/* IGP01E1000 Analog Register */ +#define IGP01E1000_ANALOG_SPARE_FUSE_STATUS 0x20D1 +#define IGP01E1000_ANALOG_FUSE_STATUS 0x20D0 +#define IGP01E1000_ANALOG_FUSE_CONTROL 0x20DC +#define IGP01E1000_ANALOG_FUSE_BYPASS 0x20DE + +#define IGP01E1000_ANALOG_FUSE_POLY_MASK 0xF000 +#define IGP01E1000_ANALOG_FUSE_FINE_MASK 0x0F80 +#define IGP01E1000_ANALOG_FUSE_COARSE_MASK 0x0070 +#define IGP01E1000_ANALOG_SPARE_FUSE_ENABLED 0x0100 +#define IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL 0x0002 + +#define IGP01E1000_ANALOG_FUSE_COARSE_THRESH 0x0040 +#define IGP01E1000_ANALOG_FUSE_COARSE_10 0x0010 +#define IGP01E1000_ANALOG_FUSE_FINE_1 0x0080 +#define IGP01E1000_ANALOG_FUSE_FINE_10 0x0500 + +/* GG82563 PHY Specific Status Register (Page 0, Register 16 */ +#define GG82563_PSCR_DISABLE_JABBER 0x0001 /* 1=Disable Jabber */ +#define GG82563_PSCR_POLARITY_REVERSAL_DISABLE 0x0002 /* 1=Polarity Reversal Disabled */ +#define GG82563_PSCR_POWER_DOWN 0x0004 /* 1=Power Down */ +#define GG82563_PSCR_COPPER_TRANSMITER_DISABLE 0x0008 /* 1=Transmitter Disabled */ +#define GG82563_PSCR_CROSSOVER_MODE_MASK 0x0060 +#define GG82563_PSCR_CROSSOVER_MODE_MDI 0x0000 /* 00=Manual MDI configuration */ +#define GG82563_PSCR_CROSSOVER_MODE_MDIX 0x0020 /* 01=Manual MDIX configuration */ +#define GG82563_PSCR_CROSSOVER_MODE_AUTO 0x0060 /* 11=Automatic crossover */ +#define GG82563_PSCR_ENALBE_EXTENDED_DISTANCE 0x0080 /* 1=Enable Extended Distance */ +#define GG82563_PSCR_ENERGY_DETECT_MASK 0x0300 +#define GG82563_PSCR_ENERGY_DETECT_OFF 0x0000 /* 00,01=Off */ +#define GG82563_PSCR_ENERGY_DETECT_RX 0x0200 /* 10=Sense on Rx only (Energy Detect) */ +#define GG82563_PSCR_ENERGY_DETECT_RX_TM 0x0300 /* 11=Sense and Tx NLP */ +#define GG82563_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force Link Good */ +#define GG82563_PSCR_DOWNSHIFT_ENABLE 0x0800 /* 1=Enable Downshift */ +#define GG82563_PSCR_DOWNSHIFT_COUNTER_MASK 0x7000 +#define GG82563_PSCR_DOWNSHIFT_COUNTER_SHIFT 12 + +/* PHY Specific Status Register (Page 0, Register 17) */ +#define GG82563_PSSR_JABBER 0x0001 /* 1=Jabber */ +#define GG82563_PSSR_POLARITY 0x0002 /* 1=Polarity Reversed */ +#define GG82563_PSSR_LINK 0x0008 /* 1=Link is Up */ +#define GG82563_PSSR_ENERGY_DETECT 0x0010 /* 1=Sleep, 0=Active */ +#define GG82563_PSSR_DOWNSHIFT 0x0020 /* 1=Downshift */ +#define GG82563_PSSR_CROSSOVER_STATUS 0x0040 /* 1=MDIX, 0=MDI */ +#define GG82563_PSSR_RX_PAUSE_ENABLED 0x0100 /* 1=Receive Pause Enabled */ +#define GG82563_PSSR_TX_PAUSE_ENABLED 0x0200 /* 1=Transmit Pause Enabled */ +#define GG82563_PSSR_LINK_UP 0x0400 /* 1=Link Up */ +#define GG82563_PSSR_SPEED_DUPLEX_RESOLVED 0x0800 /* 1=Resolved */ +#define GG82563_PSSR_PAGE_RECEIVED 0x1000 /* 1=Page Received */ +#define GG82563_PSSR_DUPLEX 0x2000 /* 1-Full-Duplex */ +#define GG82563_PSSR_SPEED_MASK 0xC000 +#define GG82563_PSSR_SPEED_10MBPS 0x0000 /* 00=10Mbps */ +#define GG82563_PSSR_SPEED_100MBPS 0x4000 /* 01=100Mbps */ +#define GG82563_PSSR_SPEED_1000MBPS 0x8000 /* 10=1000Mbps */ + +/* PHY Specific Status Register 2 (Page 0, Register 19) */ +#define GG82563_PSSR2_JABBER 0x0001 /* 1=Jabber */ +#define GG82563_PSSR2_POLARITY_CHANGED 0x0002 /* 1=Polarity Changed */ +#define GG82563_PSSR2_ENERGY_DETECT_CHANGED 0x0010 /* 1=Energy Detect Changed */ +#define GG82563_PSSR2_DOWNSHIFT_INTERRUPT 0x0020 /* 1=Downshift Detected */ +#define GG82563_PSSR2_MDI_CROSSOVER_CHANGE 0x0040 /* 1=Crossover Changed */ +#define GG82563_PSSR2_FALSE_CARRIER 0x0100 /* 1=False Carrier */ +#define GG82563_PSSR2_SYMBOL_ERROR 0x0200 /* 1=Symbol Error */ +#define GG82563_PSSR2_LINK_STATUS_CHANGED 0x0400 /* 1=Link Status Changed */ +#define GG82563_PSSR2_AUTO_NEG_COMPLETED 0x0800 /* 1=Auto-Neg Completed */ +#define GG82563_PSSR2_PAGE_RECEIVED 0x1000 /* 1=Page Received */ +#define GG82563_PSSR2_DUPLEX_CHANGED 0x2000 /* 1=Duplex Changed */ +#define GG82563_PSSR2_SPEED_CHANGED 0x4000 /* 1=Speed Changed */ +#define GG82563_PSSR2_AUTO_NEG_ERROR 0x8000 /* 1=Auto-Neg Error */ + +/* PHY Specific Control Register 2 (Page 0, Register 26) */ +#define GG82563_PSCR2_10BT_POLARITY_FORCE 0x0002 /* 1=Force Negative Polarity */ +#define GG82563_PSCR2_1000MB_TEST_SELECT_MASK 0x000C +#define GG82563_PSCR2_1000MB_TEST_SELECT_NORMAL 0x0000 /* 00,01=Normal Operation */ +#define GG82563_PSCR2_1000MB_TEST_SELECT_112NS 0x0008 /* 10=Select 112ns Sequence */ +#define GG82563_PSCR2_1000MB_TEST_SELECT_16NS 0x000C /* 11=Select 16ns Sequence */ +#define GG82563_PSCR2_REVERSE_AUTO_NEG 0x2000 /* 1=Reverse Auto-Negotiation */ +#define GG82563_PSCR2_1000BT_DISABLE 0x4000 /* 1=Disable 1000BASE-T */ +#define GG82563_PSCR2_TRANSMITER_TYPE_MASK 0x8000 +#define GG82563_PSCR2_TRANSMITTER_TYPE_CLASS_B 0x0000 /* 0=Class B */ +#define GG82563_PSCR2_TRANSMITTER_TYPE_CLASS_A 0x8000 /* 1=Class A */ + +/* MAC Specific Control Register (Page 2, Register 21) */ +/* Tx clock speed for Link Down and 1000BASE-T for the following speeds */ +#define GG82563_MSCR_TX_CLK_MASK 0x0007 +#define GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ 0x0004 +#define GG82563_MSCR_TX_CLK_100MBPS_25MHZ 0x0005 +#define GG82563_MSCR_TX_CLK_1000MBPS_2_5MHZ 0x0006 +#define GG82563_MSCR_TX_CLK_1000MBPS_25MHZ 0x0007 + +#define GG82563_MSCR_ASSERT_CRS_ON_TX 0x0010 /* 1=Assert */ + +/* DSP Distance Register (Page 5, Register 26) */ +#define GG82563_DSPD_CABLE_LENGTH 0x0007 /* 0 = <50M; + 1 = 50-80M; + 2 = 80-110M; + 3 = 110-140M; + 4 = >140M */ + +/* Kumeran Mode Control Register (Page 193, Register 16) */ +#define GG82563_KMCR_PHY_LEDS_EN 0x0020 /* 1=PHY LEDs, 0=Kumeran Inband LEDs */ +#define GG82563_KMCR_FORCE_LINK_UP 0x0040 /* 1=Force Link Up */ +#define GG82563_KMCR_SUPPRESS_SGMII_EPD_EXT 0x0080 +#define GG82563_KMCR_MDIO_BUS_SPEED_SELECT_MASK 0x0400 +#define GG82563_KMCR_MDIO_BUS_SPEED_SELECT 0x0400 /* 1=6.25MHz, 0=0.8MHz */ +#define GG82563_KMCR_PASS_FALSE_CARRIER 0x0800 + +/* Power Management Control Register (Page 193, Register 20) */ +#define GG82563_PMCR_ENABLE_ELECTRICAL_IDLE 0x0001 /* 1=Enalbe SERDES Electrical Idle */ +#define GG82563_PMCR_DISABLE_PORT 0x0002 /* 1=Disable Port */ +#define GG82563_PMCR_DISABLE_SERDES 0x0004 /* 1=Disable SERDES */ +#define GG82563_PMCR_REVERSE_AUTO_NEG 0x0008 /* 1=Enable Reverse Auto-Negotiation */ +#define GG82563_PMCR_DISABLE_1000_NON_D0 0x0010 /* 1=Disable 1000Mbps Auto-Neg in non D0 */ +#define GG82563_PMCR_DISABLE_1000 0x0020 /* 1=Disable 1000Mbps Auto-Neg Always */ +#define GG82563_PMCR_REVERSE_AUTO_NEG_D0A 0x0040 /* 1=Enable D0a Reverse Auto-Negotiation */ +#define GG82563_PMCR_FORCE_POWER_STATE 0x0080 /* 1=Force Power State */ +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_MASK 0x0300 +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_DR 0x0000 /* 00=Dr */ +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_D0U 0x0100 /* 01=D0u */ +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_D0A 0x0200 /* 10=D0a */ +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_D3 0x0300 /* 11=D3 */ + +/* In-Band Control Register (Page 194, Register 18) */ +#define GG82563_ICR_DIS_PADDING 0x0010 /* Disable Padding Use */ + + +/* Bit definitions for valid PHY IDs. */ +/* I = Integrated + * E = External + */ +#define M88_VENDOR 0x0141 +#define M88E1000_E_PHY_ID 0x01410C50 +#define M88E1000_I_PHY_ID 0x01410C30 +#define M88E1011_I_PHY_ID 0x01410C20 +#define IGP01E1000_I_PHY_ID 0x02A80380 +#define M88E1000_12_PHY_ID M88E1000_E_PHY_ID +#define M88E1000_14_PHY_ID M88E1000_E_PHY_ID +#define M88E1011_I_REV_4 0x04 +#define M88E1111_I_PHY_ID 0x01410CC0 +#define L1LXT971A_PHY_ID 0x001378E0 +#define GG82563_E_PHY_ID 0x01410CA0 + + +/* Bits... + * 15-5: page + * 4-0: register offset + */ +#define PHY_PAGE_SHIFT 5 +#define PHY_REG(page, reg) \ + (((page) << PHY_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS)) + +#define IGP3_PHY_PORT_CTRL \ + PHY_REG(769, 17) /* Port General Configuration */ +#define IGP3_PHY_RATE_ADAPT_CTRL \ + PHY_REG(769, 25) /* Rate Adapter Control Register */ + +#define IGP3_KMRN_FIFO_CTRL_STATS \ + PHY_REG(770, 16) /* KMRN FIFO's control/status register */ +#define IGP3_KMRN_POWER_MNG_CTRL \ + PHY_REG(770, 17) /* KMRN Power Management Control Register */ +#define IGP3_KMRN_INBAND_CTRL \ + PHY_REG(770, 18) /* KMRN Inband Control Register */ +#define IGP3_KMRN_DIAG \ + PHY_REG(770, 19) /* KMRN Diagnostic register */ +#define IGP3_KMRN_DIAG_PCS_LOCK_LOSS 0x0002 /* RX PCS is not synced */ +#define IGP3_KMRN_ACK_TIMEOUT \ + PHY_REG(770, 20) /* KMRN Acknowledge Timeouts register */ + +#define IGP3_VR_CTRL \ + PHY_REG(776, 18) /* Voltage regulator control register */ +#define IGP3_VR_CTRL_MODE_SHUT 0x0200 /* Enter powerdown, shutdown VRs */ +#define IGP3_VR_CTRL_MODE_MASK 0x0300 /* Shutdown VR Mask */ + +#define IGP3_CAPABILITY \ + PHY_REG(776, 19) /* IGP3 Capability Register */ + +/* Capabilities for SKU Control */ +#define IGP3_CAP_INITIATE_TEAM 0x0001 /* Able to initiate a team */ +#define IGP3_CAP_WFM 0x0002 /* Support WoL and PXE */ +#define IGP3_CAP_ASF 0x0004 /* Support ASF */ +#define IGP3_CAP_LPLU 0x0008 /* Support Low Power Link Up */ +#define IGP3_CAP_DC_AUTO_SPEED 0x0010 /* Support AC/DC Auto Link Speed */ +#define IGP3_CAP_SPD 0x0020 /* Support Smart Power Down */ +#define IGP3_CAP_MULT_QUEUE 0x0040 /* Support 2 tx & 2 rx queues */ +#define IGP3_CAP_RSS 0x0080 /* Support RSS */ +#define IGP3_CAP_8021PQ 0x0100 /* Support 802.1Q & 802.1p */ +#define IGP3_CAP_AMT_CB 0x0200 /* Support active manageability and circuit breaker */ + +#define IGP3_PPC_JORDAN_EN 0x0001 +#define IGP3_PPC_JORDAN_GIGA_SPEED 0x0002 + +#define IGP3_KMRN_PMC_EE_IDLE_LINK_DIS 0x0001 +#define IGP3_KMRN_PMC_K0S_ENTRY_LATENCY_MASK 0x001E +#define IGP3_KMRN_PMC_K0S_MODE1_EN_GIGA 0x0020 +#define IGP3_KMRN_PMC_K0S_MODE1_EN_100 0x0040 + +#define IGP3E1000_PHY_MISC_CTRL 0x1B /* Misc. Ctrl register */ +#define IGP3_PHY_MISC_DUPLEX_MANUAL_SET 0x1000 /* Duplex Manual Set */ + +#define IGP3_KMRN_EXT_CTRL PHY_REG(770, 18) +#define IGP3_KMRN_EC_DIS_INBAND 0x0080 + +#define IGP03E1000_E_PHY_ID 0x02A80390 +#define IFE_E_PHY_ID 0x02A80330 /* 10/100 PHY */ +#define IFE_PLUS_E_PHY_ID 0x02A80320 +#define IFE_C_E_PHY_ID 0x02A80310 + +#define IFE_PHY_EXTENDED_STATUS_CONTROL 0x10 /* 100BaseTx Extended Status, Control and Address */ +#define IFE_PHY_SPECIAL_CONTROL 0x11 /* 100BaseTx PHY special control register */ +#define IFE_PHY_RCV_FALSE_CARRIER 0x13 /* 100BaseTx Receive False Carrier Counter */ +#define IFE_PHY_RCV_DISCONNECT 0x14 /* 100BaseTx Receive Disconnet Counter */ +#define IFE_PHY_RCV_ERROT_FRAME 0x15 /* 100BaseTx Receive Error Frame Counter */ +#define IFE_PHY_RCV_SYMBOL_ERR 0x16 /* Receive Symbol Error Counter */ +#define IFE_PHY_PREM_EOF_ERR 0x17 /* 100BaseTx Receive Premature End Of Frame Error Counter */ +#define IFE_PHY_RCV_EOF_ERR 0x18 /* 10BaseT Receive End Of Frame Error Counter */ +#define IFE_PHY_TX_JABBER_DETECT 0x19 /* 10BaseT Transmit Jabber Detect Counter */ +#define IFE_PHY_EQUALIZER 0x1A /* PHY Equalizer Control and Status */ +#define IFE_PHY_SPECIAL_CONTROL_LED 0x1B /* PHY special control and LED configuration */ +#define IFE_PHY_MDIX_CONTROL 0x1C /* MDI/MDI-X Control register */ +#define IFE_PHY_HWI_CONTROL 0x1D /* Hardware Integrity Control (HWI) */ + +#define IFE_PESC_REDUCED_POWER_DOWN_DISABLE 0x2000 /* Defaut 1 = Disable auto reduced power down */ +#define IFE_PESC_100BTX_POWER_DOWN 0x0400 /* Indicates the power state of 100BASE-TX */ +#define IFE_PESC_10BTX_POWER_DOWN 0x0200 /* Indicates the power state of 10BASE-T */ +#define IFE_PESC_POLARITY_REVERSED 0x0100 /* Indicates 10BASE-T polarity */ +#define IFE_PESC_PHY_ADDR_MASK 0x007C /* Bit 6:2 for sampled PHY address */ +#define IFE_PESC_SPEED 0x0002 /* Auto-negotiation speed result 1=100Mbs, 0=10Mbs */ +#define IFE_PESC_DUPLEX 0x0001 /* Auto-negotiation duplex result 1=Full, 0=Half */ +#define IFE_PESC_POLARITY_REVERSED_SHIFT 8 + +#define IFE_PSC_DISABLE_DYNAMIC_POWER_DOWN 0x0100 /* 1 = Dyanmic Power Down disabled */ +#define IFE_PSC_FORCE_POLARITY 0x0020 /* 1=Reversed Polarity, 0=Normal */ +#define IFE_PSC_AUTO_POLARITY_DISABLE 0x0010 /* 1=Auto Polarity Disabled, 0=Enabled */ +#define IFE_PSC_JABBER_FUNC_DISABLE 0x0001 /* 1=Jabber Disabled, 0=Normal Jabber Operation */ +#define IFE_PSC_FORCE_POLARITY_SHIFT 5 +#define IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT 4 + +#define IFE_PMC_AUTO_MDIX 0x0080 /* 1=enable MDI/MDI-X feature, default 0=disabled */ +#define IFE_PMC_FORCE_MDIX 0x0040 /* 1=force MDIX-X, 0=force MDI */ +#define IFE_PMC_MDIX_STATUS 0x0020 /* 1=MDI-X, 0=MDI */ +#define IFE_PMC_AUTO_MDIX_COMPLETE 0x0010 /* Resolution algorithm is completed */ +#define IFE_PMC_MDIX_MODE_SHIFT 6 +#define IFE_PHC_MDIX_RESET_ALL_MASK 0x0000 /* Disable auto MDI-X */ + +#define IFE_PHC_HWI_ENABLE 0x8000 /* Enable the HWI feature */ +#define IFE_PHC_ABILITY_CHECK 0x4000 /* 1= Test Passed, 0=failed */ +#define IFE_PHC_TEST_EXEC 0x2000 /* PHY launch test pulses on the wire */ +#define IFE_PHC_HIGHZ 0x0200 /* 1 = Open Circuit */ +#define IFE_PHC_LOWZ 0x0400 /* 1 = Short Circuit */ +#define IFE_PHC_LOW_HIGH_Z_MASK 0x0600 /* Mask for indication type of problem on the line */ +#define IFE_PHC_DISTANCE_MASK 0x01FF /* Mask for distance to the cable problem, in 80cm granularity */ +#define IFE_PHC_RESET_ALL_MASK 0x0000 /* Disable HWI */ +#define IFE_PSCL_PROBE_MODE 0x0020 /* LED Probe mode */ +#define IFE_PSCL_PROBE_LEDS_OFF 0x0006 /* Force LEDs 0 and 2 off */ +#define IFE_PSCL_PROBE_LEDS_ON 0x0007 /* Force LEDs 0 and 2 on */ + +#define ICH_FLASH_COMMAND_TIMEOUT 5000 /* 5000 uSecs - adjusted */ +#define ICH_FLASH_ERASE_TIMEOUT 3000000 /* Up to 3 seconds - worst case */ +#define ICH_FLASH_CYCLE_REPEAT_COUNT 10 /* 10 cycles */ +#define ICH_FLASH_SEG_SIZE_256 256 +#define ICH_FLASH_SEG_SIZE_4K 4096 +#define ICH_FLASH_SEG_SIZE_64K 65536 + +#define ICH_CYCLE_READ 0x0 +#define ICH_CYCLE_RESERVED 0x1 +#define ICH_CYCLE_WRITE 0x2 +#define ICH_CYCLE_ERASE 0x3 + +#define ICH_FLASH_GFPREG 0x0000 +#define ICH_FLASH_HSFSTS 0x0004 +#define ICH_FLASH_HSFCTL 0x0006 +#define ICH_FLASH_FADDR 0x0008 +#define ICH_FLASH_FDATA0 0x0010 +#define ICH_FLASH_FRACC 0x0050 +#define ICH_FLASH_FREG0 0x0054 +#define ICH_FLASH_FREG1 0x0058 +#define ICH_FLASH_FREG2 0x005C +#define ICH_FLASH_FREG3 0x0060 +#define ICH_FLASH_FPR0 0x0074 +#define ICH_FLASH_FPR1 0x0078 +#define ICH_FLASH_SSFSTS 0x0090 +#define ICH_FLASH_SSFCTL 0x0092 +#define ICH_FLASH_PREOP 0x0094 +#define ICH_FLASH_OPTYPE 0x0096 +#define ICH_FLASH_OPMENU 0x0098 + +#define ICH_FLASH_REG_MAPSIZE 0x00A0 +#define ICH_FLASH_SECTOR_SIZE 4096 +#define ICH_GFPREG_BASE_MASK 0x1FFF +#define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF + +/* ICH8 GbE Flash Hardware Sequencing Flash Status Register bit breakdown */ +/* Offset 04h HSFSTS */ +union ich8_hws_flash_status { + struct ich8_hsfsts { +#ifdef __BIG_ENDIAN + u16 reserved2 :6; + u16 fldesvalid :1; + u16 flockdn :1; + u16 flcdone :1; + u16 flcerr :1; + u16 dael :1; + u16 berasesz :2; + u16 flcinprog :1; + u16 reserved1 :2; +#else + u16 flcdone :1; /* bit 0 Flash Cycle Done */ + u16 flcerr :1; /* bit 1 Flash Cycle Error */ + u16 dael :1; /* bit 2 Direct Access error Log */ + u16 berasesz :2; /* bit 4:3 Block/Sector Erase Size */ + u16 flcinprog :1; /* bit 5 flash SPI cycle in Progress */ + u16 reserved1 :2; /* bit 13:6 Reserved */ + u16 reserved2 :6; /* bit 13:6 Reserved */ + u16 fldesvalid :1; /* bit 14 Flash Descriptor Valid */ + u16 flockdn :1; /* bit 15 Flash Configuration Lock-Down */ +#endif + } hsf_status; + u16 regval; +}; + +/* ICH8 GbE Flash Hardware Sequencing Flash control Register bit breakdown */ +/* Offset 06h FLCTL */ +union ich8_hws_flash_ctrl { + struct ich8_hsflctl { +#ifdef __BIG_ENDIAN + u16 fldbcount :2; + u16 flockdn :6; + u16 flcgo :1; + u16 flcycle :2; + u16 reserved :5; +#else + u16 flcgo :1; /* 0 Flash Cycle Go */ + u16 flcycle :2; /* 2:1 Flash Cycle */ + u16 reserved :5; /* 7:3 Reserved */ + u16 fldbcount :2; /* 9:8 Flash Data Byte Count */ + u16 flockdn :6; /* 15:10 Reserved */ +#endif + } hsf_ctrl; + u16 regval; +}; + +/* ICH8 Flash Region Access Permissions */ +union ich8_hws_flash_regacc { + struct ich8_flracc { +#ifdef __BIG_ENDIAN + u32 gmwag :8; + u32 gmrag :8; + u32 grwa :8; + u32 grra :8; +#else + u32 grra :8; /* 0:7 GbE region Read Access */ + u32 grwa :8; /* 8:15 GbE region Write Access */ + u32 gmrag :8; /* 23:16 GbE Master Read Access Grant */ + u32 gmwag :8; /* 31:24 GbE Master Write Access Grant */ +#endif + } hsf_flregacc; + u16 regval; +}; + +/* Miscellaneous PHY bit definitions. */ +#define PHY_PREAMBLE 0xFFFFFFFF +#define PHY_SOF 0x01 +#define PHY_OP_READ 0x02 +#define PHY_OP_WRITE 0x01 +#define PHY_TURNAROUND 0x02 +#define PHY_PREAMBLE_SIZE 32 +#define MII_CR_SPEED_1000 0x0040 +#define MII_CR_SPEED_100 0x2000 +#define MII_CR_SPEED_10 0x0000 +#define E1000_PHY_ADDRESS 0x01 +#define PHY_AUTO_NEG_TIME 45 /* 4.5 Seconds */ +#define PHY_FORCE_TIME 20 /* 2.0 Seconds */ +#define PHY_REVISION_MASK 0xFFFFFFF0 +#define DEVICE_SPEED_MASK 0x00000300 /* Device Ctrl Reg Speed Mask */ +#define REG4_SPEED_MASK 0x01E0 +#define REG9_SPEED_MASK 0x0300 +#define ADVERTISE_10_HALF 0x0001 +#define ADVERTISE_10_FULL 0x0002 +#define ADVERTISE_100_HALF 0x0004 +#define ADVERTISE_100_FULL 0x0008 +#define ADVERTISE_1000_HALF 0x0010 +#define ADVERTISE_1000_FULL 0x0020 +#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F /* Everything but 1000-Half */ +#define AUTONEG_ADVERTISE_10_100_ALL 0x000F /* All 10/100 speeds*/ +#define AUTONEG_ADVERTISE_10_ALL 0x0003 /* 10Mbps Full & Half speeds*/ + +#endif /* _E1000_HW_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_hw-2.6.31-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_hw-2.6.31-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,8878 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* e1000_hw.c + * Shared functions for accessing and configuring the MAC + */ + + +#include "e1000_hw.h" + +static s32 e1000_swfw_sync_acquire(struct e1000_hw *hw, u16 mask); +static void e1000_swfw_sync_release(struct e1000_hw *hw, u16 mask); +static s32 e1000_read_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 *data); +static s32 e1000_write_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 data); +static s32 e1000_get_software_semaphore(struct e1000_hw *hw); +static void e1000_release_software_semaphore(struct e1000_hw *hw); + +static u8 e1000_arc_subsystem_valid(struct e1000_hw *hw); +static s32 e1000_check_downshift(struct e1000_hw *hw); +static s32 e1000_check_polarity(struct e1000_hw *hw, + e1000_rev_polarity *polarity); +static void e1000_clear_hw_cntrs(struct e1000_hw *hw); +static void e1000_clear_vfta(struct e1000_hw *hw); +static s32 e1000_commit_shadow_ram(struct e1000_hw *hw); +static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, + bool link_up); +static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw); +static s32 e1000_detect_gig_phy(struct e1000_hw *hw); +static s32 e1000_erase_ich8_4k_segment(struct e1000_hw *hw, u32 bank); +static s32 e1000_get_auto_rd_done(struct e1000_hw *hw); +static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, + u16 *max_length); +static s32 e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw); +static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw); +static s32 e1000_get_software_flag(struct e1000_hw *hw); +static s32 e1000_ich8_cycle_init(struct e1000_hw *hw); +static s32 e1000_ich8_flash_cycle(struct e1000_hw *hw, u32 timeout); +static s32 e1000_id_led_init(struct e1000_hw *hw); +static s32 e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, + u32 cnf_base_addr, + u32 cnf_size); +static s32 e1000_init_lcd_from_nvm(struct e1000_hw *hw); +static void e1000_init_rx_addrs(struct e1000_hw *hw); +static void e1000_initialize_hardware_bits(struct e1000_hw *hw); +static bool e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw); +static s32 e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw); +static s32 e1000_mng_enable_host_if(struct e1000_hw *hw); +static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer, u16 length, + u16 offset, u8 *sum); +static s32 e1000_mng_write_cmd_header(struct e1000_hw* hw, + struct e1000_host_mng_command_header + *hdr); +static s32 e1000_mng_write_commit(struct e1000_hw *hw); +static s32 e1000_phy_ife_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static s32 e1000_read_eeprom_eerd(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static s32 e1000_write_eeprom_eewr(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static s32 e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd); +static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw); +static s32 e1000_read_ich8_byte(struct e1000_hw *hw, u32 index, u8 *data); +static s32 e1000_verify_write_ich8_byte(struct e1000_hw *hw, u32 index, + u8 byte); +static s32 e1000_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte); +static s32 e1000_read_ich8_word(struct e1000_hw *hw, u32 index, u16 *data); +static s32 e1000_read_ich8_data(struct e1000_hw *hw, u32 index, u32 size, + u16 *data); +static s32 e1000_write_ich8_data(struct e1000_hw *hw, u32 index, u32 size, + u16 data); +static s32 e1000_read_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static s32 e1000_write_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static void e1000_release_software_flag(struct e1000_hw *hw); +static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active); +static s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active); +static s32 e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, u32 no_snoop); +static void e1000_set_pci_express_master_disable(struct e1000_hw *hw); +static s32 e1000_wait_autoneg(struct e1000_hw *hw); +static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value); +static s32 e1000_set_phy_type(struct e1000_hw *hw); +static void e1000_phy_init_script(struct e1000_hw *hw); +static s32 e1000_setup_copper_link(struct e1000_hw *hw); +static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw); +static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw); +static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw); +static s32 e1000_config_mac_to_phy(struct e1000_hw *hw); +static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl); +static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl); +static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, + u16 count); +static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw); +static s32 e1000_phy_reset_dsp(struct e1000_hw *hw); +static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data); +static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data); +static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw); +static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd); +static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd); +static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, u16 count); +static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 phy_data); +static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw,u32 reg_addr, + u16 *phy_data); +static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count); +static s32 e1000_acquire_eeprom(struct e1000_hw *hw); +static void e1000_release_eeprom(struct e1000_hw *hw); +static void e1000_standby_eeprom(struct e1000_hw *hw); +static s32 e1000_set_vco_speed(struct e1000_hw *hw); +static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw); +static s32 e1000_set_phy_mode(struct e1000_hw *hw); +static s32 e1000_host_if_read_cookie(struct e1000_hw *hw, u8 *buffer); +static u8 e1000_calculate_mng_checksum(char *buffer, u32 length); +static s32 e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, u16 duplex); +static s32 e1000_configure_kmrn_for_1000(struct e1000_hw *hw); +static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data); +static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data); + +/* IGP cable length table */ +static const +u16 e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] = + { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25, + 25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60, + 60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90, + 90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, + 100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, + 110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120}; + +static const +u16 e1000_igp_2_cable_length_table[IGP02E1000_AGC_LENGTH_TABLE_SIZE] = + { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21, + 0, 0, 0, 3, 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41, + 6, 10, 14, 18, 22, 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61, + 21, 26, 31, 35, 40, 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82, + 40, 45, 51, 56, 61, 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104, + 60, 66, 72, 77, 82, 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121, + 83, 89, 95, 100, 105, 109, 113, 116, 119, 122, 124, + 104, 109, 114, 118, 121, 124}; + +static DEFINE_SPINLOCK(e1000_eeprom_lock); + +/****************************************************************************** + * Set the phy type member in the hw struct. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_set_phy_type(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_set_phy_type"); + + if (hw->mac_type == e1000_undefined) + return -E1000_ERR_PHY_TYPE; + + switch (hw->phy_id) { + case M88E1000_E_PHY_ID: + case M88E1000_I_PHY_ID: + case M88E1011_I_PHY_ID: + case M88E1111_I_PHY_ID: + hw->phy_type = e1000_phy_m88; + break; + case IGP01E1000_I_PHY_ID: + if (hw->mac_type == e1000_82541 || + hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547 || + hw->mac_type == e1000_82547_rev_2) { + hw->phy_type = e1000_phy_igp; + break; + } + case IGP03E1000_E_PHY_ID: + hw->phy_type = e1000_phy_igp_3; + break; + case IFE_E_PHY_ID: + case IFE_PLUS_E_PHY_ID: + case IFE_C_E_PHY_ID: + hw->phy_type = e1000_phy_ife; + break; + case GG82563_E_PHY_ID: + if (hw->mac_type == e1000_80003es2lan) { + hw->phy_type = e1000_phy_gg82563; + break; + } + /* Fall Through */ + default: + /* Should never have loaded on this device */ + hw->phy_type = e1000_phy_undefined; + return -E1000_ERR_PHY_TYPE; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * IGP phy init script - initializes the GbE PHY + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_phy_init_script(struct e1000_hw *hw) +{ + u32 ret_val; + u16 phy_saved_data; + + DEBUGFUNC("e1000_phy_init_script"); + + if (hw->phy_init_script) { + msleep(20); + + /* Save off the current value of register 0x2F5B to be restored at + * the end of this routine. */ + ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + /* Disabled the PHY transmitter */ + e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + msleep(20); + + e1000_write_phy_reg(hw,0x0000,0x0140); + + msleep(5); + + switch (hw->mac_type) { + case e1000_82541: + case e1000_82547: + e1000_write_phy_reg(hw, 0x1F95, 0x0001); + + e1000_write_phy_reg(hw, 0x1F71, 0xBD21); + + e1000_write_phy_reg(hw, 0x1F79, 0x0018); + + e1000_write_phy_reg(hw, 0x1F30, 0x1600); + + e1000_write_phy_reg(hw, 0x1F31, 0x0014); + + e1000_write_phy_reg(hw, 0x1F32, 0x161C); + + e1000_write_phy_reg(hw, 0x1F94, 0x0003); + + e1000_write_phy_reg(hw, 0x1F96, 0x003F); + + e1000_write_phy_reg(hw, 0x2010, 0x0008); + break; + + case e1000_82541_rev_2: + case e1000_82547_rev_2: + e1000_write_phy_reg(hw, 0x1F73, 0x0099); + break; + default: + break; + } + + e1000_write_phy_reg(hw, 0x0000, 0x3300); + + msleep(20); + + /* Now enable the transmitter */ + e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (hw->mac_type == e1000_82547) { + u16 fused, fine, coarse; + + /* Move to analog registers page */ + e1000_read_phy_reg(hw, IGP01E1000_ANALOG_SPARE_FUSE_STATUS, &fused); + + if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) { + e1000_read_phy_reg(hw, IGP01E1000_ANALOG_FUSE_STATUS, &fused); + + fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK; + coarse = fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK; + + if (coarse > IGP01E1000_ANALOG_FUSE_COARSE_THRESH) { + coarse -= IGP01E1000_ANALOG_FUSE_COARSE_10; + fine -= IGP01E1000_ANALOG_FUSE_FINE_1; + } else if (coarse == IGP01E1000_ANALOG_FUSE_COARSE_THRESH) + fine -= IGP01E1000_ANALOG_FUSE_FINE_10; + + fused = (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) | + (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) | + (coarse & IGP01E1000_ANALOG_FUSE_COARSE_MASK); + + e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_CONTROL, fused); + e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_BYPASS, + IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL); + } + } + } +} + +/****************************************************************************** + * Set the mac type member in the hw struct. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_set_mac_type(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_set_mac_type"); + + switch (hw->device_id) { + case E1000_DEV_ID_82542: + switch (hw->revision_id) { + case E1000_82542_2_0_REV_ID: + hw->mac_type = e1000_82542_rev2_0; + break; + case E1000_82542_2_1_REV_ID: + hw->mac_type = e1000_82542_rev2_1; + break; + default: + /* Invalid 82542 revision ID */ + return -E1000_ERR_MAC_TYPE; + } + break; + case E1000_DEV_ID_82543GC_FIBER: + case E1000_DEV_ID_82543GC_COPPER: + hw->mac_type = e1000_82543; + break; + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + hw->mac_type = e1000_82544; + break; + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + hw->mac_type = e1000_82540; + break; + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + hw->mac_type = e1000_82545; + break; + case E1000_DEV_ID_82545GM_COPPER: + case E1000_DEV_ID_82545GM_FIBER: + case E1000_DEV_ID_82545GM_SERDES: + hw->mac_type = e1000_82545_rev_3; + break; + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + hw->mac_type = e1000_82546; + break; + case E1000_DEV_ID_82546GB_COPPER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82546GB_SERDES: + case E1000_DEV_ID_82546GB_PCIE: + case E1000_DEV_ID_82546GB_QUAD_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + hw->mac_type = e1000_82546_rev_3; + break; + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER_LOM: + hw->mac_type = e1000_82541; + break; + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + hw->mac_type = e1000_82541_rev_2; + break; + case E1000_DEV_ID_82547EI: + case E1000_DEV_ID_82547EI_MOBILE: + hw->mac_type = e1000_82547; + break; + case E1000_DEV_ID_82547GI: + hw->mac_type = e1000_82547_rev_2; + break; + case E1000_DEV_ID_82571EB_COPPER: + case E1000_DEV_ID_82571EB_FIBER: + case E1000_DEV_ID_82571EB_SERDES: + case E1000_DEV_ID_82571EB_SERDES_DUAL: + case E1000_DEV_ID_82571EB_SERDES_QUAD: + case E1000_DEV_ID_82571EB_QUAD_COPPER: + case E1000_DEV_ID_82571PT_QUAD_COPPER: + case E1000_DEV_ID_82571EB_QUAD_FIBER: + case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE: + hw->mac_type = e1000_82571; + break; + case E1000_DEV_ID_82572EI_COPPER: + case E1000_DEV_ID_82572EI_FIBER: + case E1000_DEV_ID_82572EI_SERDES: + case E1000_DEV_ID_82572EI: + hw->mac_type = e1000_82572; + break; + case E1000_DEV_ID_82573E: + case E1000_DEV_ID_82573E_IAMT: + case E1000_DEV_ID_82573L: + hw->mac_type = e1000_82573; + break; + case E1000_DEV_ID_80003ES2LAN_COPPER_SPT: + case E1000_DEV_ID_80003ES2LAN_SERDES_SPT: + case E1000_DEV_ID_80003ES2LAN_COPPER_DPT: + case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: + hw->mac_type = e1000_80003es2lan; + break; + case E1000_DEV_ID_ICH8_IGP_M_AMT: + case E1000_DEV_ID_ICH8_IGP_AMT: + case E1000_DEV_ID_ICH8_IGP_C: + case E1000_DEV_ID_ICH8_IFE: + case E1000_DEV_ID_ICH8_IFE_GT: + case E1000_DEV_ID_ICH8_IFE_G: + case E1000_DEV_ID_ICH8_IGP_M: + hw->mac_type = e1000_ich8lan; + break; + default: + /* Should never have loaded on this device */ + return -E1000_ERR_MAC_TYPE; + } + + switch (hw->mac_type) { + case e1000_ich8lan: + hw->swfwhw_semaphore_present = true; + hw->asf_firmware_present = true; + break; + case e1000_80003es2lan: + hw->swfw_sync_present = true; + /* fall through */ + case e1000_82571: + case e1000_82572: + case e1000_82573: + hw->eeprom_semaphore_present = true; + /* fall through */ + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + hw->asf_firmware_present = true; + break; + default: + break; + } + + /* The 82543 chip does not count tx_carrier_errors properly in + * FD mode + */ + if (hw->mac_type == e1000_82543) + hw->bad_tx_carr_stats_fd = true; + + /* capable of receiving management packets to the host */ + if (hw->mac_type >= e1000_82571) + hw->has_manc2h = true; + + /* In rare occasions, ESB2 systems would end up started without + * the RX unit being turned on. + */ + if (hw->mac_type == e1000_80003es2lan) + hw->rx_needs_kicking = true; + + if (hw->mac_type > e1000_82544) + hw->has_smbus = true; + + return E1000_SUCCESS; +} + +/***************************************************************************** + * Set media type and TBI compatibility. + * + * hw - Struct containing variables accessed by shared code + * **************************************************************************/ +void e1000_set_media_type(struct e1000_hw *hw) +{ + u32 status; + + DEBUGFUNC("e1000_set_media_type"); + + if (hw->mac_type != e1000_82543) { + /* tbi_compatibility is only valid on 82543 */ + hw->tbi_compatibility_en = false; + } + + switch (hw->device_id) { + case E1000_DEV_ID_82545GM_SERDES: + case E1000_DEV_ID_82546GB_SERDES: + case E1000_DEV_ID_82571EB_SERDES: + case E1000_DEV_ID_82571EB_SERDES_DUAL: + case E1000_DEV_ID_82571EB_SERDES_QUAD: + case E1000_DEV_ID_82572EI_SERDES: + case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: + hw->media_type = e1000_media_type_internal_serdes; + break; + default: + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + hw->media_type = e1000_media_type_fiber; + break; + case e1000_ich8lan: + case e1000_82573: + /* The STATUS_TBIMODE bit is reserved or reused for the this + * device. + */ + hw->media_type = e1000_media_type_copper; + break; + default: + status = er32(STATUS); + if (status & E1000_STATUS_TBIMODE) { + hw->media_type = e1000_media_type_fiber; + /* tbi_compatibility not valid on fiber */ + hw->tbi_compatibility_en = false; + } else { + hw->media_type = e1000_media_type_copper; + } + break; + } + } +} + +/****************************************************************************** + * Reset the transmit and receive units; mask and clear all interrupts. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_reset_hw(struct e1000_hw *hw) +{ + u32 ctrl; + u32 ctrl_ext; + u32 icr; + u32 manc; + u32 led_ctrl; + u32 timeout; + u32 extcnf_ctrl; + s32 ret_val; + + DEBUGFUNC("e1000_reset_hw"); + + /* For 82542 (rev 2.0), disable MWI before issuing a device reset */ + if (hw->mac_type == e1000_82542_rev2_0) { + DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); + e1000_pci_clear_mwi(hw); + } + + if (hw->bus_type == e1000_bus_type_pci_express) { + /* Prevent the PCI-E bus from sticking if there is no TLP connection + * on the last TLP read/write transaction when MAC is reset. + */ + if (e1000_disable_pciex_master(hw) != E1000_SUCCESS) { + DEBUGOUT("PCI-E Master disable polling has failed.\n"); + } + } + + /* Clear interrupt mask to stop board from generating interrupts */ + DEBUGOUT("Masking off all interrupts\n"); + ew32(IMC, 0xffffffff); + + /* Disable the Transmit and Receive units. Then delay to allow + * any pending transactions to complete before we hit the MAC with + * the global reset. + */ + ew32(RCTL, 0); + ew32(TCTL, E1000_TCTL_PSP); + E1000_WRITE_FLUSH(); + + /* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */ + hw->tbi_compatibility_on = false; + + /* Delay to allow any outstanding PCI transactions to complete before + * resetting the device + */ + msleep(10); + + ctrl = er32(CTRL); + + /* Must reset the PHY before resetting the MAC */ + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + ew32(CTRL, (ctrl | E1000_CTRL_PHY_RST)); + msleep(5); + } + + /* Must acquire the MDIO ownership before MAC reset. + * Ownership defaults to firmware after a reset. */ + if (hw->mac_type == e1000_82573) { + timeout = 10; + + extcnf_ctrl = er32(EXTCNF_CTRL); + extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; + + do { + ew32(EXTCNF_CTRL, extcnf_ctrl); + extcnf_ctrl = er32(EXTCNF_CTRL); + + if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP) + break; + else + extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; + + msleep(2); + timeout--; + } while (timeout); + } + + /* Workaround for ICH8 bit corruption issue in FIFO memory */ + if (hw->mac_type == e1000_ich8lan) { + /* Set Tx and Rx buffer allocation to 8k apiece. */ + ew32(PBA, E1000_PBA_8K); + /* Set Packet Buffer Size to 16k. */ + ew32(PBS, E1000_PBS_16K); + } + + /* Issue a global reset to the MAC. This will reset the chip's + * transmit, receive, DMA, and link units. It will not effect + * the current PCI configuration. The global reset bit is self- + * clearing, and should clear within a microsecond. + */ + DEBUGOUT("Issuing a global reset to MAC\n"); + + switch (hw->mac_type) { + case e1000_82544: + case e1000_82540: + case e1000_82545: + case e1000_82546: + case e1000_82541: + case e1000_82541_rev_2: + /* These controllers can't ack the 64-bit write when issuing the + * reset, so use IO-mapping as a workaround to issue the reset */ + E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST)); + break; + case e1000_82545_rev_3: + case e1000_82546_rev_3: + /* Reset is performed on a shadow of the control register */ + ew32(CTRL_DUP, (ctrl | E1000_CTRL_RST)); + break; + case e1000_ich8lan: + if (!hw->phy_reset_disable && + e1000_check_phy_reset_block(hw) == E1000_SUCCESS) { + /* e1000_ich8lan PHY HW reset requires MAC CORE reset + * at the same time to make sure the interface between + * MAC and the external PHY is reset. + */ + ctrl |= E1000_CTRL_PHY_RST; + } + + e1000_get_software_flag(hw); + ew32(CTRL, (ctrl | E1000_CTRL_RST)); + msleep(5); + break; + default: + ew32(CTRL, (ctrl | E1000_CTRL_RST)); + break; + } + + /* After MAC reset, force reload of EEPROM to restore power-on settings to + * device. Later controllers reload the EEPROM automatically, so just wait + * for reload to complete. + */ + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* Wait for reset to complete */ + udelay(10); + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_EE_RST; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + /* Wait for EEPROM reload */ + msleep(2); + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + /* Wait for EEPROM reload */ + msleep(20); + break; + case e1000_82573: + if (!e1000_is_onboard_nvm_eeprom(hw)) { + udelay(10); + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_EE_RST; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + } + /* fall through */ + default: + /* Auto read done will delay 5ms or poll based on mac type */ + ret_val = e1000_get_auto_rd_done(hw); + if (ret_val) + return ret_val; + break; + } + + /* Disable HW ARPs on ASF enabled adapters */ + if (hw->mac_type >= e1000_82540 && hw->mac_type <= e1000_82547_rev_2) { + manc = er32(MANC); + manc &= ~(E1000_MANC_ARP_EN); + ew32(MANC, manc); + } + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + e1000_phy_init_script(hw); + + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* Clear interrupt mask to stop board from generating interrupts */ + DEBUGOUT("Masking off all interrupts\n"); + ew32(IMC, 0xffffffff); + + /* Clear any pending interrupt events. */ + icr = er32(ICR); + + /* If MWI was previously enabled, reenable it. */ + if (hw->mac_type == e1000_82542_rev2_0) { + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + } + + if (hw->mac_type == e1000_ich8lan) { + u32 kab = er32(KABGTXD); + kab |= E1000_KABGTXD_BGSQLBIAS; + ew32(KABGTXD, kab); + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * + * Initialize a number of hardware-dependent bits + * + * hw: Struct containing variables accessed by shared code + * + * This function contains hardware limitation workarounds for PCI-E adapters + * + *****************************************************************************/ +static void e1000_initialize_hardware_bits(struct e1000_hw *hw) +{ + if ((hw->mac_type >= e1000_82571) && (!hw->initialize_hw_bits_disable)) { + /* Settings common to all PCI-express silicon */ + u32 reg_ctrl, reg_ctrl_ext; + u32 reg_tarc0, reg_tarc1; + u32 reg_tctl; + u32 reg_txdctl, reg_txdctl1; + + /* link autonegotiation/sync workarounds */ + reg_tarc0 = er32(TARC0); + reg_tarc0 &= ~((1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)); + + /* Enable not-done TX descriptor counting */ + reg_txdctl = er32(TXDCTL); + reg_txdctl |= E1000_TXDCTL_COUNT_DESC; + ew32(TXDCTL, reg_txdctl); + reg_txdctl1 = er32(TXDCTL1); + reg_txdctl1 |= E1000_TXDCTL_COUNT_DESC; + ew32(TXDCTL1, reg_txdctl1); + + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + /* Clear PHY TX compatible mode bits */ + reg_tarc1 = er32(TARC1); + reg_tarc1 &= ~((1 << 30)|(1 << 29)); + + /* link autonegotiation/sync workarounds */ + reg_tarc0 |= ((1 << 26)|(1 << 25)|(1 << 24)|(1 << 23)); + + /* TX ring control fixes */ + reg_tarc1 |= ((1 << 26)|(1 << 25)|(1 << 24)); + + /* Multiple read bit is reversed polarity */ + reg_tctl = er32(TCTL); + if (reg_tctl & E1000_TCTL_MULR) + reg_tarc1 &= ~(1 << 28); + else + reg_tarc1 |= (1 << 28); + + ew32(TARC1, reg_tarc1); + break; + case e1000_82573: + reg_ctrl_ext = er32(CTRL_EXT); + reg_ctrl_ext &= ~(1 << 23); + reg_ctrl_ext |= (1 << 22); + + /* TX byte count fix */ + reg_ctrl = er32(CTRL); + reg_ctrl &= ~(1 << 29); + + ew32(CTRL_EXT, reg_ctrl_ext); + ew32(CTRL, reg_ctrl); + break; + case e1000_80003es2lan: + /* improve small packet performace for fiber/serdes */ + if ((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) { + reg_tarc0 &= ~(1 << 20); + } + + /* Multiple read bit is reversed polarity */ + reg_tctl = er32(TCTL); + reg_tarc1 = er32(TARC1); + if (reg_tctl & E1000_TCTL_MULR) + reg_tarc1 &= ~(1 << 28); + else + reg_tarc1 |= (1 << 28); + + ew32(TARC1, reg_tarc1); + break; + case e1000_ich8lan: + /* Reduce concurrent DMA requests to 3 from 4 */ + if ((hw->revision_id < 3) || + ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) && + (hw->device_id != E1000_DEV_ID_ICH8_IGP_M))) + reg_tarc0 |= ((1 << 29)|(1 << 28)); + + reg_ctrl_ext = er32(CTRL_EXT); + reg_ctrl_ext |= (1 << 22); + ew32(CTRL_EXT, reg_ctrl_ext); + + /* workaround TX hang with TSO=on */ + reg_tarc0 |= ((1 << 27)|(1 << 26)|(1 << 24)|(1 << 23)); + + /* Multiple read bit is reversed polarity */ + reg_tctl = er32(TCTL); + reg_tarc1 = er32(TARC1); + if (reg_tctl & E1000_TCTL_MULR) + reg_tarc1 &= ~(1 << 28); + else + reg_tarc1 |= (1 << 28); + + /* workaround TX hang with TSO=on */ + reg_tarc1 |= ((1 << 30)|(1 << 26)|(1 << 24)); + + ew32(TARC1, reg_tarc1); + break; + default: + break; + } + + ew32(TARC0, reg_tarc0); + } +} + +/****************************************************************************** + * Performs basic configuration of the adapter. + * + * hw - Struct containing variables accessed by shared code + * + * Assumes that the controller has previously been reset and is in a + * post-reset uninitialized state. Initializes the receive address registers, + * multicast table, and VLAN filter table. Calls routines to setup link + * configuration and flow control settings. Clears all on-chip counters. Leaves + * the transmit and receive units disabled and uninitialized. + *****************************************************************************/ +s32 e1000_init_hw(struct e1000_hw *hw) +{ + u32 ctrl; + u32 i; + s32 ret_val; + u32 mta_size; + u32 reg_data; + u32 ctrl_ext; + + DEBUGFUNC("e1000_init_hw"); + + /* force full DMA clock frequency for 10/100 on ICH8 A0-B0 */ + if ((hw->mac_type == e1000_ich8lan) && + ((hw->revision_id < 3) || + ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) && + (hw->device_id != E1000_DEV_ID_ICH8_IGP_M)))) { + reg_data = er32(STATUS); + reg_data &= ~0x80000000; + ew32(STATUS, reg_data); + } + + /* Initialize Identification LED */ + ret_val = e1000_id_led_init(hw); + if (ret_val) { + DEBUGOUT("Error Initializing Identification LED\n"); + return ret_val; + } + + /* Set the media type and TBI compatibility */ + e1000_set_media_type(hw); + + /* Must be called after e1000_set_media_type because media_type is used */ + e1000_initialize_hardware_bits(hw); + + /* Disabling VLAN filtering. */ + DEBUGOUT("Initializing the IEEE VLAN\n"); + /* VET hardcoded to standard value and VFTA removed in ICH8 LAN */ + if (hw->mac_type != e1000_ich8lan) { + if (hw->mac_type < e1000_82545_rev_3) + ew32(VET, 0); + e1000_clear_vfta(hw); + } + + /* For 82542 (rev 2.0), disable MWI and put the receiver into reset */ + if (hw->mac_type == e1000_82542_rev2_0) { + DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); + e1000_pci_clear_mwi(hw); + ew32(RCTL, E1000_RCTL_RST); + E1000_WRITE_FLUSH(); + msleep(5); + } + + /* Setup the receive address. This involves initializing all of the Receive + * Address Registers (RARs 0 - 15). + */ + e1000_init_rx_addrs(hw); + + /* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */ + if (hw->mac_type == e1000_82542_rev2_0) { + ew32(RCTL, 0); + E1000_WRITE_FLUSH(); + msleep(1); + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + } + + /* Zero out the Multicast HASH table */ + DEBUGOUT("Zeroing the MTA\n"); + mta_size = E1000_MC_TBL_SIZE; + if (hw->mac_type == e1000_ich8lan) + mta_size = E1000_MC_TBL_SIZE_ICH8LAN; + for (i = 0; i < mta_size; i++) { + E1000_WRITE_REG_ARRAY(hw, MTA, i, 0); + /* use write flush to prevent Memory Write Block (MWB) from + * occuring when accessing our register space */ + E1000_WRITE_FLUSH(); + } + + /* Set the PCI priority bit correctly in the CTRL register. This + * determines if the adapter gives priority to receives, or if it + * gives equal priority to transmits and receives. Valid only on + * 82542 and 82543 silicon. + */ + if (hw->dma_fairness && hw->mac_type <= e1000_82543) { + ctrl = er32(CTRL); + ew32(CTRL, ctrl | E1000_CTRL_PRIOR); + } + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + /* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */ + if (hw->bus_type == e1000_bus_type_pcix && e1000_pcix_get_mmrbc(hw) > 2048) + e1000_pcix_set_mmrbc(hw, 2048); + break; + } + + /* More time needed for PHY to initialize */ + if (hw->mac_type == e1000_ich8lan) + msleep(15); + + /* Call a subroutine to configure the link and setup flow control. */ + ret_val = e1000_setup_link(hw); + + /* Set the transmit descriptor write-back policy */ + if (hw->mac_type > e1000_82544) { + ctrl = er32(TXDCTL); + ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; + ew32(TXDCTL, ctrl); + } + + if (hw->mac_type == e1000_82573) { + e1000_enable_tx_pkt_filtering(hw); + } + + switch (hw->mac_type) { + default: + break; + case e1000_80003es2lan: + /* Enable retransmit on late collisions */ + reg_data = er32(TCTL); + reg_data |= E1000_TCTL_RTLC; + ew32(TCTL, reg_data); + + /* Configure Gigabit Carry Extend Padding */ + reg_data = er32(TCTL_EXT); + reg_data &= ~E1000_TCTL_EXT_GCEX_MASK; + reg_data |= DEFAULT_80003ES2LAN_TCTL_EXT_GCEX; + ew32(TCTL_EXT, reg_data); + + /* Configure Transmit Inter-Packet Gap */ + reg_data = er32(TIPG); + reg_data &= ~E1000_TIPG_IPGT_MASK; + reg_data |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; + ew32(TIPG, reg_data); + + reg_data = E1000_READ_REG_ARRAY(hw, FFLT, 0x0001); + reg_data &= ~0x00100000; + E1000_WRITE_REG_ARRAY(hw, FFLT, 0x0001, reg_data); + /* Fall through */ + case e1000_82571: + case e1000_82572: + case e1000_ich8lan: + ctrl = er32(TXDCTL1); + ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; + ew32(TXDCTL1, ctrl); + break; + } + + + if (hw->mac_type == e1000_82573) { + u32 gcr = er32(GCR); + gcr |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX; + ew32(GCR, gcr); + } + + /* Clear all of the statistics registers (clear on read). It is + * important that we do this after we have tried to establish link + * because the symbol error count will increment wildly if there + * is no link. + */ + e1000_clear_hw_cntrs(hw); + + /* ICH8 No-snoop bits are opposite polarity. + * Set to snoop by default after reset. */ + if (hw->mac_type == e1000_ich8lan) + e1000_set_pci_ex_no_snoop(hw, PCI_EX_82566_SNOOP_ALL); + + if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER || + hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) { + ctrl_ext = er32(CTRL_EXT); + /* Relaxed ordering must be disabled to avoid a parity + * error crash in a PCI slot. */ + ctrl_ext |= E1000_CTRL_EXT_RO_DIS; + ew32(CTRL_EXT, ctrl_ext); + } + + return ret_val; +} + +/****************************************************************************** + * Adjust SERDES output amplitude based on EEPROM setting. + * + * hw - Struct containing variables accessed by shared code. + *****************************************************************************/ +static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw) +{ + u16 eeprom_data; + s32 ret_val; + + DEBUGFUNC("e1000_adjust_serdes_amplitude"); + + if (hw->media_type != e1000_media_type_internal_serdes) + return E1000_SUCCESS; + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + return E1000_SUCCESS; + } + + ret_val = e1000_read_eeprom(hw, EEPROM_SERDES_AMPLITUDE, 1, &eeprom_data); + if (ret_val) { + return ret_val; + } + + if (eeprom_data != EEPROM_RESERVED_WORD) { + /* Adjust SERDES output amplitude only. */ + eeprom_data &= EEPROM_SERDES_AMPLITUDE_MASK; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_EXT_CTRL, eeprom_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Configures flow control and link settings. + * + * hw - Struct containing variables accessed by shared code + * + * Determines which flow control settings to use. Calls the apropriate media- + * specific link configuration function. Configures the flow control settings. + * Assuming the adapter has a valid link partner, a valid link should be + * established. Assumes the hardware has previously been reset and the + * transmitter and receiver are not enabled. + *****************************************************************************/ +s32 e1000_setup_link(struct e1000_hw *hw) +{ + u32 ctrl_ext; + s32 ret_val; + u16 eeprom_data; + + DEBUGFUNC("e1000_setup_link"); + + /* In the case of the phy reset being blocked, we already have a link. + * We do not have to set it up again. */ + if (e1000_check_phy_reset_block(hw)) + return E1000_SUCCESS; + + /* Read and store word 0x0F of the EEPROM. This word contains bits + * that determine the hardware's default PAUSE (flow control) mode, + * a bit that determines whether the HW defaults to enabling or + * disabling auto-negotiation, and the direction of the + * SW defined pins. If there is no SW over-ride of the flow + * control setting, then the variable hw->fc will + * be initialized based on a value in the EEPROM. + */ + if (hw->fc == E1000_FC_DEFAULT) { + switch (hw->mac_type) { + case e1000_ich8lan: + case e1000_82573: + hw->fc = E1000_FC_FULL; + break; + default: + ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, + 1, &eeprom_data); + if (ret_val) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0) + hw->fc = E1000_FC_NONE; + else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == + EEPROM_WORD0F_ASM_DIR) + hw->fc = E1000_FC_TX_PAUSE; + else + hw->fc = E1000_FC_FULL; + break; + } + } + + /* We want to save off the original Flow Control configuration just + * in case we get disconnected and then reconnected into a different + * hub or switch with different Flow Control capabilities. + */ + if (hw->mac_type == e1000_82542_rev2_0) + hw->fc &= (~E1000_FC_TX_PAUSE); + + if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1)) + hw->fc &= (~E1000_FC_RX_PAUSE); + + hw->original_fc = hw->fc; + + DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc); + + /* Take the 4 bits from EEPROM word 0x0F that determine the initial + * polarity value for the SW controlled pins, and setup the + * Extended Device Control reg with that info. + * This is needed because one of the SW controlled pins is used for + * signal detection. So this should be done before e1000_setup_pcs_link() + * or e1000_phy_setup() is called. + */ + if (hw->mac_type == e1000_82543) { + ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, + 1, &eeprom_data); + if (ret_val) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) << + SWDPIO__EXT_SHIFT); + ew32(CTRL_EXT, ctrl_ext); + } + + /* Call the necessary subroutine to configure the link. */ + ret_val = (hw->media_type == e1000_media_type_copper) ? + e1000_setup_copper_link(hw) : + e1000_setup_fiber_serdes_link(hw); + + /* Initialize the flow control address, type, and PAUSE timer + * registers to their default values. This is done even if flow + * control is disabled, because it does not hurt anything to + * initialize these registers. + */ + DEBUGOUT("Initializing the Flow Control address, type and timer regs\n"); + + /* FCAL/H and FCT are hardcoded to standard values in e1000_ich8lan. */ + if (hw->mac_type != e1000_ich8lan) { + ew32(FCT, FLOW_CONTROL_TYPE); + ew32(FCAH, FLOW_CONTROL_ADDRESS_HIGH); + ew32(FCAL, FLOW_CONTROL_ADDRESS_LOW); + } + + ew32(FCTTV, hw->fc_pause_time); + + /* Set the flow control receive threshold registers. Normally, + * these registers will be set to a default threshold that may be + * adjusted later by the driver's runtime code. However, if the + * ability to transmit pause frames in not enabled, then these + * registers will be set to 0. + */ + if (!(hw->fc & E1000_FC_TX_PAUSE)) { + ew32(FCRTL, 0); + ew32(FCRTH, 0); + } else { + /* We need to set up the Receive Threshold high and low water marks + * as well as (optionally) enabling the transmission of XON frames. + */ + if (hw->fc_send_xon) { + ew32(FCRTL, (hw->fc_low_water | E1000_FCRTL_XONE)); + ew32(FCRTH, hw->fc_high_water); + } else { + ew32(FCRTL, hw->fc_low_water); + ew32(FCRTH, hw->fc_high_water); + } + } + return ret_val; +} + +/****************************************************************************** + * Sets up link for a fiber based or serdes based adapter + * + * hw - Struct containing variables accessed by shared code + * + * Manipulates Physical Coding Sublayer functions in order to configure + * link. Assumes the hardware has been previously reset and the transmitter + * and receiver are not enabled. + *****************************************************************************/ +static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw) +{ + u32 ctrl; + u32 status; + u32 txcw = 0; + u32 i; + u32 signal = 0; + s32 ret_val; + + DEBUGFUNC("e1000_setup_fiber_serdes_link"); + + /* On 82571 and 82572 Fiber connections, SerDes loopback mode persists + * until explicitly turned off or a power cycle is performed. A read to + * the register does not indicate its status. Therefore, we ensure + * loopback mode is disabled during initialization. + */ + if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) + ew32(SCTL, E1000_DISABLE_SERDES_LOOPBACK); + + /* On adapters with a MAC newer than 82544, SWDP 1 will be + * set when the optics detect a signal. On older adapters, it will be + * cleared when there is a signal. This applies to fiber media only. + * If we're on serdes media, adjust the output amplitude to value + * set in the EEPROM. + */ + ctrl = er32(CTRL); + if (hw->media_type == e1000_media_type_fiber) + signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; + + ret_val = e1000_adjust_serdes_amplitude(hw); + if (ret_val) + return ret_val; + + /* Take the link out of reset */ + ctrl &= ~(E1000_CTRL_LRST); + + /* Adjust VCO speed to improve BER performance */ + ret_val = e1000_set_vco_speed(hw); + if (ret_val) + return ret_val; + + e1000_config_collision_dist(hw); + + /* Check for a software override of the flow control settings, and setup + * the device accordingly. If auto-negotiation is enabled, then software + * will have to set the "PAUSE" bits to the correct value in the Tranmsit + * Config Word Register (TXCW) and re-start auto-negotiation. However, if + * auto-negotiation is disabled, then software will have to manually + * configure the two flow control enable bits in the CTRL register. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames, but + * not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames but we do + * not support receiving pause frames). + * 3: Both Rx and TX flow control (symmetric) are enabled. + */ + switch (hw->fc) { + case E1000_FC_NONE: + /* Flow control is completely disabled by a software over-ride. */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); + break; + case E1000_FC_RX_PAUSE: + /* RX Flow control is enabled and TX Flow control is disabled by a + * software over-ride. Since there really isn't a way to advertise + * that we are capable of RX Pause ONLY, we will advertise that we + * support both symmetric and asymmetric RX PAUSE. Later, we will + * disable the adapter's ability to send PAUSE frames. + */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); + break; + case E1000_FC_TX_PAUSE: + /* TX Flow control is enabled, and RX Flow control is disabled, by a + * software over-ride. + */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR); + break; + case E1000_FC_FULL: + /* Flow control (both RX and TX) is enabled by a software over-ride. */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + break; + } + + /* Since auto-negotiation is enabled, take the link out of reset (the link + * will be in reset, because we previously reset the chip). This will + * restart auto-negotiation. If auto-neogtiation is successful then the + * link-up status bit will be set and the flow control enable bits (RFCE + * and TFCE) will be set according to their negotiated value. + */ + DEBUGOUT("Auto-negotiation enabled\n"); + + ew32(TXCW, txcw); + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + hw->txcw = txcw; + msleep(1); + + /* If we have a signal (the cable is plugged in) then poll for a "Link-Up" + * indication in the Device Status Register. Time-out if a link isn't + * seen in 500 milliseconds seconds (Auto-negotiation should complete in + * less than 500 milliseconds even if the other end is doing it in SW). + * For internal serdes, we just assume a signal is present, then poll. + */ + if (hw->media_type == e1000_media_type_internal_serdes || + (er32(CTRL) & E1000_CTRL_SWDPIN1) == signal) { + DEBUGOUT("Looking for Link\n"); + for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) { + msleep(10); + status = er32(STATUS); + if (status & E1000_STATUS_LU) break; + } + if (i == (LINK_UP_TIMEOUT / 10)) { + DEBUGOUT("Never got a valid link from auto-neg!!!\n"); + hw->autoneg_failed = 1; + /* AutoNeg failed to achieve a link, so we'll call + * e1000_check_for_link. This routine will force the link up if + * we detect a signal. This will allow us to communicate with + * non-autonegotiating link partners. + */ + ret_val = e1000_check_for_link(hw); + if (ret_val) { + DEBUGOUT("Error while checking for link\n"); + return ret_val; + } + hw->autoneg_failed = 0; + } else { + hw->autoneg_failed = 0; + DEBUGOUT("Valid Link Found\n"); + } + } else { + DEBUGOUT("No Signal Detected\n"); + } + return E1000_SUCCESS; +} + +/****************************************************************************** +* Make sure we have a valid PHY and change PHY mode before link setup. +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_copper_link_preconfig(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_preconfig"); + + ctrl = er32(CTRL); + /* With 82543, we need to force speed and duplex on the MAC equal to what + * the PHY speed and duplex configuration is. In addition, we need to + * perform a hardware reset on the PHY to take it out of reset. + */ + if (hw->mac_type > e1000_82543) { + ctrl |= E1000_CTRL_SLU; + ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ew32(CTRL, ctrl); + } else { + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU); + ew32(CTRL, ctrl); + ret_val = e1000_phy_hw_reset(hw); + if (ret_val) + return ret_val; + } + + /* Make sure we have a valid PHY */ + ret_val = e1000_detect_gig_phy(hw); + if (ret_val) { + DEBUGOUT("Error, did not detect valid phy.\n"); + return ret_val; + } + DEBUGOUT1("Phy ID = %x \n", hw->phy_id); + + /* Set PHY to class A mode (if necessary) */ + ret_val = e1000_set_phy_mode(hw); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82545_rev_3) || + (hw->mac_type == e1000_82546_rev_3)) { + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + phy_data |= 0x00000008; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + } + + if (hw->mac_type <= e1000_82543 || + hw->mac_type == e1000_82541 || hw->mac_type == e1000_82547 || + hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) + hw->phy_reset_disable = false; + + return E1000_SUCCESS; +} + + +/******************************************************************** +* Copper link setup for e1000_phy_igp series. +* +* hw - Struct containing variables accessed by shared code +*********************************************************************/ +static s32 e1000_copper_link_igp_setup(struct e1000_hw *hw) +{ + u32 led_ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_igp_setup"); + + if (hw->phy_reset_disable) + return E1000_SUCCESS; + + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + + /* Wait 15ms for MAC to configure PHY from eeprom settings */ + msleep(15); + if (hw->mac_type != e1000_ich8lan) { + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* The NVM settings will configure LPLU in D3 for IGP2 and IGP3 PHYs */ + if (hw->phy_type == e1000_phy_igp) { + /* disable lplu d3 during driver init */ + ret_val = e1000_set_d3_lplu_state(hw, false); + if (ret_val) { + DEBUGOUT("Error Disabling LPLU D3\n"); + return ret_val; + } + } + + /* disable lplu d0 during driver init */ + ret_val = e1000_set_d0_lplu_state(hw, false); + if (ret_val) { + DEBUGOUT("Error Disabling LPLU D0\n"); + return ret_val; + } + /* Configure mdi-mdix settings */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + hw->dsp_config_state = e1000_dsp_config_disabled; + /* Force MDI for earlier revs of the IGP PHY */ + phy_data &= ~(IGP01E1000_PSCR_AUTO_MDIX | IGP01E1000_PSCR_FORCE_MDI_MDIX); + hw->mdix = 1; + + } else { + hw->dsp_config_state = e1000_dsp_config_enabled; + phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; + + switch (hw->mdix) { + case 1: + phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; + break; + case 2: + phy_data |= IGP01E1000_PSCR_FORCE_MDI_MDIX; + break; + case 0: + default: + phy_data |= IGP01E1000_PSCR_AUTO_MDIX; + break; + } + } + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* set auto-master slave resolution settings */ + if (hw->autoneg) { + e1000_ms_type phy_ms_setting = hw->master_slave; + + if (hw->ffe_config_state == e1000_ffe_config_active) + hw->ffe_config_state = e1000_ffe_config_enabled; + + if (hw->dsp_config_state == e1000_dsp_config_activated) + hw->dsp_config_state = e1000_dsp_config_enabled; + + /* when autonegotiation advertisment is only 1000Mbps then we + * should disable SmartSpeed and enable Auto MasterSlave + * resolution as hardware default. */ + if (hw->autoneg_advertised == ADVERTISE_1000_FULL) { + /* Disable SmartSpeed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + /* Set auto Master/Slave resolution process */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); + if (ret_val) + return ret_val; + phy_data &= ~CR_1000T_MS_ENABLE; + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); + if (ret_val) + return ret_val; + + /* load defaults for future use */ + hw->original_master_slave = (phy_data & CR_1000T_MS_ENABLE) ? + ((phy_data & CR_1000T_MS_VALUE) ? + e1000_ms_force_master : + e1000_ms_force_slave) : + e1000_ms_auto; + + switch (phy_ms_setting) { + case e1000_ms_force_master: + phy_data |= (CR_1000T_MS_ENABLE | CR_1000T_MS_VALUE); + break; + case e1000_ms_force_slave: + phy_data |= CR_1000T_MS_ENABLE; + phy_data &= ~(CR_1000T_MS_VALUE); + break; + case e1000_ms_auto: + phy_data &= ~CR_1000T_MS_ENABLE; + default: + break; + } + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/******************************************************************** +* Copper link setup for e1000_phy_gg82563 series. +* +* hw - Struct containing variables accessed by shared code +*********************************************************************/ +static s32 e1000_copper_link_ggp_setup(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + u32 reg_data; + + DEBUGFUNC("e1000_copper_link_ggp_setup"); + + if (!hw->phy_reset_disable) { + + /* Enable CRS on TX for half-duplex operation. */ + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; + /* Use 25MHz for both link down and 1000BASE-T for Tx clock */ + phy_data |= GG82563_MSCR_TX_CLK_1000MBPS_25MHZ; + + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, + phy_data); + if (ret_val) + return ret_val; + + /* Options: + * MDI/MDI-X = 0 (default) + * 0 - Auto for all speeds + * 1 - MDI mode + * 2 - MDI-X mode + * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) + */ + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK; + + switch (hw->mdix) { + case 1: + phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDI; + break; + case 2: + phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDIX; + break; + case 0: + default: + phy_data |= GG82563_PSCR_CROSSOVER_MODE_AUTO; + break; + } + + /* Options: + * disable_polarity_correction = 0 (default) + * Automatic Correction for Reversed Cable Polarity + * 0 - Disabled + * 1 - Enabled + */ + phy_data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE; + if (hw->disable_polarity_correction == 1) + phy_data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL, phy_data); + + if (ret_val) + return ret_val; + + /* SW Reset the PHY so all changes take effect */ + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + } /* phy_reset_disable */ + + if (hw->mac_type == e1000_80003es2lan) { + /* Bypass RX and TX FIFO's */ + ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL, + E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS | + E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, phy_data); + + if (ret_val) + return ret_val; + + reg_data = er32(CTRL_EXT); + reg_data &= ~(E1000_CTRL_EXT_LINK_MODE_MASK); + ew32(CTRL_EXT, reg_data); + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + /* Do not init these registers when the HW is in IAMT mode, since the + * firmware will have already initialized them. We only initialize + * them if the HW is not in IAMT mode. + */ + if (!e1000_check_mng_mode(hw)) { + /* Enable Electrical Idle on the PHY */ + phy_data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, + phy_data); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, + phy_data); + + if (ret_val) + return ret_val; + } + + /* Workaround: Disable padding in Kumeran interface in the MAC + * and in the PHY to avoid CRC errors. + */ + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_INBAND_CTRL, + &phy_data); + if (ret_val) + return ret_val; + phy_data |= GG82563_ICR_DIS_PADDING; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_INBAND_CTRL, + phy_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/******************************************************************** +* Copper link setup for e1000_phy_m88 series. +* +* hw - Struct containing variables accessed by shared code +*********************************************************************/ +static s32 e1000_copper_link_mgp_setup(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_mgp_setup"); + + if (hw->phy_reset_disable) + return E1000_SUCCESS; + + /* Enable CRS on TX. This must be set for half-duplex operation. */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + + /* Options: + * MDI/MDI-X = 0 (default) + * 0 - Auto for all speeds + * 1 - MDI mode + * 2 - MDI-X mode + * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) + */ + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + + switch (hw->mdix) { + case 1: + phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE; + break; + case 2: + phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE; + break; + case 3: + phy_data |= M88E1000_PSCR_AUTO_X_1000T; + break; + case 0: + default: + phy_data |= M88E1000_PSCR_AUTO_X_MODE; + break; + } + + /* Options: + * disable_polarity_correction = 0 (default) + * Automatic Correction for Reversed Cable Polarity + * 0 - Disabled + * 1 - Enabled + */ + phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL; + if (hw->disable_polarity_correction == 1) + phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + if (hw->phy_revision < M88E1011_I_REV_4) { + /* Force TX_CLK in the Extended PHY Specific Control Register + * to 25MHz clock. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_EPSCR_TX_CLK_25; + + if ((hw->phy_revision == E1000_REVISION_2) && + (hw->phy_id == M88E1111_I_PHY_ID)) { + /* Vidalia Phy, set the downshift counter to 5x */ + phy_data &= ~(M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK); + phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X; + ret_val = e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + } else { + /* Configure Master and Slave downshift values */ + phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK | + M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK); + phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X | + M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X); + ret_val = e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + } + } + + /* SW Reset the PHY so all changes take effect */ + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + + return E1000_SUCCESS; +} + +/******************************************************************** +* Setup auto-negotiation and flow control advertisements, +* and then perform auto-negotiation. +* +* hw - Struct containing variables accessed by shared code +*********************************************************************/ +static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_autoneg"); + + /* Perform some bounds checking on the hw->autoneg_advertised + * parameter. If this variable is zero, then set it to the default. + */ + hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT; + + /* If autoneg_advertised is zero, we assume it was not defaulted + * by the calling code so we set to advertise full capability. + */ + if (hw->autoneg_advertised == 0) + hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT; + + /* IFE phy only supports 10/100 */ + if (hw->phy_type == e1000_phy_ife) + hw->autoneg_advertised &= AUTONEG_ADVERTISE_10_100_ALL; + + DEBUGOUT("Reconfiguring auto-neg advertisement params\n"); + ret_val = e1000_phy_setup_autoneg(hw); + if (ret_val) { + DEBUGOUT("Error Setting up Auto-Negotiation\n"); + return ret_val; + } + DEBUGOUT("Restarting Auto-Neg\n"); + + /* Restart auto-negotiation by setting the Auto Neg Enable bit and + * the Auto Neg Restart bit in the PHY control register. + */ + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG); + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* Does the user want to wait for Auto-Neg to complete here, or + * check at a later time (for example, callback routine). + */ + if (hw->wait_autoneg_complete) { + ret_val = e1000_wait_autoneg(hw); + if (ret_val) { + DEBUGOUT("Error while waiting for autoneg to complete\n"); + return ret_val; + } + } + + hw->get_link_status = true; + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Config the MAC and the PHY after link is up. +* 1) Set up the MAC to the current PHY speed/duplex +* if we are on 82543. If we +* are on newer silicon, we only need to configure +* collision distance in the Transmit Control Register. +* 2) Set up flow control on the MAC to that established with +* the link partner. +* 3) Config DSP to improve Gigabit link quality for some PHY revisions. +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_copper_link_postconfig(struct e1000_hw *hw) +{ + s32 ret_val; + DEBUGFUNC("e1000_copper_link_postconfig"); + + if (hw->mac_type >= e1000_82544) { + e1000_config_collision_dist(hw); + } else { + ret_val = e1000_config_mac_to_phy(hw); + if (ret_val) { + DEBUGOUT("Error configuring MAC to PHY settings\n"); + return ret_val; + } + } + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error Configuring Flow Control\n"); + return ret_val; + } + + /* Config DSP to improve Giga link quality */ + if (hw->phy_type == e1000_phy_igp) { + ret_val = e1000_config_dsp_after_link_change(hw, true); + if (ret_val) { + DEBUGOUT("Error Configuring DSP after link up\n"); + return ret_val; + } + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Detects which PHY is present and setup the speed and duplex +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_setup_copper_link(struct e1000_hw *hw) +{ + s32 ret_val; + u16 i; + u16 phy_data; + u16 reg_data; + + DEBUGFUNC("e1000_setup_copper_link"); + + switch (hw->mac_type) { + case e1000_80003es2lan: + case e1000_ich8lan: + /* Set the mac to wait the maximum time between each + * iteration and increase the max iterations when + * polling the phy; this fixes erroneous timeouts at 10Mbps. */ + ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); + if (ret_val) + return ret_val; + ret_val = e1000_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data); + if (ret_val) + return ret_val; + reg_data |= 0x3F; + ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data); + if (ret_val) + return ret_val; + default: + break; + } + + /* Check if it is a valid PHY and set PHY mode if necessary. */ + ret_val = e1000_copper_link_preconfig(hw); + if (ret_val) + return ret_val; + + switch (hw->mac_type) { + case e1000_80003es2lan: + /* Kumeran registers are written-only */ + reg_data = E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT; + reg_data |= E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING; + ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_INB_CTRL, + reg_data); + if (ret_val) + return ret_val; + break; + default: + break; + } + + if (hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) { + ret_val = e1000_copper_link_igp_setup(hw); + if (ret_val) + return ret_val; + } else if (hw->phy_type == e1000_phy_m88) { + ret_val = e1000_copper_link_mgp_setup(hw); + if (ret_val) + return ret_val; + } else if (hw->phy_type == e1000_phy_gg82563) { + ret_val = e1000_copper_link_ggp_setup(hw); + if (ret_val) + return ret_val; + } + + if (hw->autoneg) { + /* Setup autoneg and flow control advertisement + * and perform autonegotiation */ + ret_val = e1000_copper_link_autoneg(hw); + if (ret_val) + return ret_val; + } else { + /* PHY will be set to 10H, 10F, 100H,or 100F + * depending on value from forced_speed_duplex. */ + DEBUGOUT("Forcing speed and duplex\n"); + ret_val = e1000_phy_force_speed_duplex(hw); + if (ret_val) { + DEBUGOUT("Error Forcing Speed and Duplex\n"); + return ret_val; + } + } + + /* Check link status. Wait up to 100 microseconds for link to become + * valid. + */ + for (i = 0; i < 10; i++) { + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & MII_SR_LINK_STATUS) { + /* Config the MAC and PHY after link is up */ + ret_val = e1000_copper_link_postconfig(hw); + if (ret_val) + return ret_val; + + DEBUGOUT("Valid link established!!!\n"); + return E1000_SUCCESS; + } + udelay(10); + } + + DEBUGOUT("Unable to establish link!!!\n"); + return E1000_SUCCESS; +} + +/****************************************************************************** +* Configure the MAC-to-PHY interface for 10/100Mbps +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, u16 duplex) +{ + s32 ret_val = E1000_SUCCESS; + u32 tipg; + u16 reg_data; + + DEBUGFUNC("e1000_configure_kmrn_for_10_100"); + + reg_data = E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT; + ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, + reg_data); + if (ret_val) + return ret_val; + + /* Configure Transmit Inter-Packet Gap */ + tipg = er32(TIPG); + tipg &= ~E1000_TIPG_IPGT_MASK; + tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_10_100; + ew32(TIPG, tipg); + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); + + if (ret_val) + return ret_val; + + if (duplex == HALF_DUPLEX) + reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER; + else + reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; + + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); + + return ret_val; +} + +static s32 e1000_configure_kmrn_for_1000(struct e1000_hw *hw) +{ + s32 ret_val = E1000_SUCCESS; + u16 reg_data; + u32 tipg; + + DEBUGFUNC("e1000_configure_kmrn_for_1000"); + + reg_data = E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT; + ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, + reg_data); + if (ret_val) + return ret_val; + + /* Configure Transmit Inter-Packet Gap */ + tipg = er32(TIPG); + tipg &= ~E1000_TIPG_IPGT_MASK; + tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; + ew32(TIPG, tipg); + + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); + + if (ret_val) + return ret_val; + + reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); + + return ret_val; +} + +/****************************************************************************** +* Configures PHY autoneg and flow control advertisement settings +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_autoneg_adv_reg; + u16 mii_1000t_ctrl_reg; + + DEBUGFUNC("e1000_phy_setup_autoneg"); + + /* Read the MII Auto-Neg Advertisement Register (Address 4). */ + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg); + if (ret_val) + return ret_val; + + if (hw->phy_type != e1000_phy_ife) { + /* Read the MII 1000Base-T Control Register (Address 9). */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; + } else + mii_1000t_ctrl_reg=0; + + /* Need to parse both autoneg_advertised and fc and set up + * the appropriate PHY registers. First we will parse for + * autoneg_advertised software override. Since we can advertise + * a plethora of combinations, we need to check each bit + * individually. + */ + + /* First we clear all the 10/100 mb speed bits in the Auto-Neg + * Advertisement Register (Address 4) and the 1000 mb speed bits in + * the 1000Base-T Control Register (Address 9). + */ + mii_autoneg_adv_reg &= ~REG4_SPEED_MASK; + mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK; + + DEBUGOUT1("autoneg_advertised %x\n", hw->autoneg_advertised); + + /* Do we want to advertise 10 Mb Half Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_10_HALF) { + DEBUGOUT("Advertise 10mb Half duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS; + } + + /* Do we want to advertise 10 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_10_FULL) { + DEBUGOUT("Advertise 10mb Full duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS; + } + + /* Do we want to advertise 100 Mb Half Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_100_HALF) { + DEBUGOUT("Advertise 100mb Half duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS; + } + + /* Do we want to advertise 100 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_100_FULL) { + DEBUGOUT("Advertise 100mb Full duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS; + } + + /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ + if (hw->autoneg_advertised & ADVERTISE_1000_HALF) { + DEBUGOUT("Advertise 1000mb Half duplex requested, request denied!\n"); + } + + /* Do we want to advertise 1000 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_1000_FULL) { + DEBUGOUT("Advertise 1000mb Full duplex\n"); + mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS; + if (hw->phy_type == e1000_phy_ife) { + DEBUGOUT("e1000_phy_ife is a 10/100 PHY. Gigabit speed is not supported.\n"); + } + } + + /* Check for a software override of the flow control settings, and + * setup the PHY advertisement registers accordingly. If + * auto-negotiation is enabled, then software will have to set the + * "PAUSE" bits to the correct value in the Auto-Negotiation + * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames + * but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames + * but we do not support receiving pause frames). + * 3: Both Rx and TX flow control (symmetric) are enabled. + * other: No software override. The flow control configuration + * in the EEPROM is used. + */ + switch (hw->fc) { + case E1000_FC_NONE: /* 0 */ + /* Flow control (RX & TX) is completely disabled by a + * software over-ride. + */ + mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + case E1000_FC_RX_PAUSE: /* 1 */ + /* RX Flow control is enabled, and TX Flow control is + * disabled, by a software over-ride. + */ + /* Since there really isn't a way to advertise that we are + * capable of RX Pause ONLY, we will advertise that we + * support both symmetric and asymmetric RX PAUSE. Later + * (in e1000_config_fc_after_link_up) we will disable the + *hw's ability to send PAUSE frames. + */ + mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + case E1000_FC_TX_PAUSE: /* 2 */ + /* TX Flow control is enabled, and RX Flow control is + * disabled, by a software over-ride. + */ + mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR; + mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE; + break; + case E1000_FC_FULL: /* 3 */ + /* Flow control (both RX and TX) is enabled by a software + * over-ride. + */ + mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + } + + ret_val = e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg); + if (ret_val) + return ret_val; + + DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg); + + if (hw->phy_type != e1000_phy_ife) { + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Force PHY speed and duplex settings to hw->forced_speed_duplex +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 mii_ctrl_reg; + u16 mii_status_reg; + u16 phy_data; + u16 i; + + DEBUGFUNC("e1000_phy_force_speed_duplex"); + + /* Turn off Flow control if we are forcing speed and duplex. */ + hw->fc = E1000_FC_NONE; + + DEBUGOUT1("hw->fc = %d\n", hw->fc); + + /* Read the Device Control Register. */ + ctrl = er32(CTRL); + + /* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */ + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ctrl &= ~(DEVICE_SPEED_MASK); + + /* Clear the Auto Speed Detect Enable bit. */ + ctrl &= ~E1000_CTRL_ASDE; + + /* Read the MII Control Register. */ + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &mii_ctrl_reg); + if (ret_val) + return ret_val; + + /* We need to disable autoneg in order to force link and duplex. */ + + mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN; + + /* Are we forcing Full or Half Duplex? */ + if (hw->forced_speed_duplex == e1000_100_full || + hw->forced_speed_duplex == e1000_10_full) { + /* We want to force full duplex so we SET the full duplex bits in the + * Device and MII Control Registers. + */ + ctrl |= E1000_CTRL_FD; + mii_ctrl_reg |= MII_CR_FULL_DUPLEX; + DEBUGOUT("Full Duplex\n"); + } else { + /* We want to force half duplex so we CLEAR the full duplex bits in + * the Device and MII Control Registers. + */ + ctrl &= ~E1000_CTRL_FD; + mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX; + DEBUGOUT("Half Duplex\n"); + } + + /* Are we forcing 100Mbps??? */ + if (hw->forced_speed_duplex == e1000_100_full || + hw->forced_speed_duplex == e1000_100_half) { + /* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */ + ctrl |= E1000_CTRL_SPD_100; + mii_ctrl_reg |= MII_CR_SPEED_100; + mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10); + DEBUGOUT("Forcing 100mb "); + } else { + /* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */ + ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); + mii_ctrl_reg |= MII_CR_SPEED_10; + mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100); + DEBUGOUT("Forcing 10mb "); + } + + e1000_config_collision_dist(hw); + + /* Write the configured values back to the Device Control Reg. */ + ew32(CTRL, ctrl); + + if ((hw->phy_type == e1000_phy_m88) || + (hw->phy_type == e1000_phy_gg82563)) { + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI + * forced whenever speed are duplex are forced. + */ + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data); + + /* Need to reset the PHY or these changes will be ignored */ + mii_ctrl_reg |= MII_CR_RESET; + + /* Disable MDI-X support for 10/100 */ + } else if (hw->phy_type == e1000_phy_ife) { + ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IFE_PMC_AUTO_MDIX; + phy_data &= ~IFE_PMC_FORCE_MDIX; + + ret_val = e1000_write_phy_reg(hw, IFE_PHY_MDIX_CONTROL, phy_data); + if (ret_val) + return ret_val; + + } else { + /* Clear Auto-Crossover to force MDI manually. IGP requires MDI + * forced whenever speed or duplex are forced. + */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; + phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; + + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + /* Write back the modified PHY MII control register. */ + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, mii_ctrl_reg); + if (ret_val) + return ret_val; + + udelay(1); + + /* The wait_autoneg_complete flag may be a little misleading here. + * Since we are forcing speed and duplex, Auto-Neg is not enabled. + * But we do want to delay for a period while forcing only so we + * don't generate false No Link messages. So we will wait here + * only if the user has set wait_autoneg_complete to 1, which is + * the default. + */ + if (hw->wait_autoneg_complete) { + /* We will wait for autoneg to complete. */ + DEBUGOUT("Waiting for forced speed/duplex link.\n"); + mii_status_reg = 0; + + /* We will wait for autoneg to complete or 4.5 seconds to expire. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Auto-Neg Complete bit + * to be set. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_LINK_STATUS) break; + msleep(100); + } + if ((i == 0) && + ((hw->phy_type == e1000_phy_m88) || + (hw->phy_type == e1000_phy_gg82563))) { + /* We didn't get link. Reset the DSP and wait again for link. */ + ret_val = e1000_phy_reset_dsp(hw); + if (ret_val) { + DEBUGOUT("Error Resetting PHY DSP\n"); + return ret_val; + } + } + /* This loop will early-out if the link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + if (mii_status_reg & MII_SR_LINK_STATUS) break; + msleep(100); + /* Read the MII Status Register and wait for Auto-Neg Complete bit + * to be set. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + } + } + + if (hw->phy_type == e1000_phy_m88) { + /* Because we reset the PHY above, we need to re-force TX_CLK in the + * Extended PHY Specific Control Register to 25MHz clock. This value + * defaults back to a 2.5MHz clock when the PHY is reset. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_EPSCR_TX_CLK_25; + ret_val = e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* In addition, because of the s/w reset above, we need to enable CRS on + * TX. This must be set for both full and half duplex operation. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && + (!hw->autoneg) && (hw->forced_speed_duplex == e1000_10_full || + hw->forced_speed_duplex == e1000_10_half)) { + ret_val = e1000_polarity_reversal_workaround(hw); + if (ret_val) + return ret_val; + } + } else if (hw->phy_type == e1000_phy_gg82563) { + /* The TX_CLK of the Extended PHY Specific Control Register defaults + * to 2.5MHz on a reset. We need to re-force it back to 25MHz, if + * we're not in a forced 10/duplex configuration. */ + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~GG82563_MSCR_TX_CLK_MASK; + if ((hw->forced_speed_duplex == e1000_10_full) || + (hw->forced_speed_duplex == e1000_10_half)) + phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ; + else + phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25MHZ; + + /* Also due to the reset, we need to enable CRS on Tx. */ + phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; + + ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + } + return E1000_SUCCESS; +} + +/****************************************************************************** +* Sets the collision distance in the Transmit Control register +* +* hw - Struct containing variables accessed by shared code +* +* Link should have been established previously. Reads the speed and duplex +* information from the Device Status register. +******************************************************************************/ +void e1000_config_collision_dist(struct e1000_hw *hw) +{ + u32 tctl, coll_dist; + + DEBUGFUNC("e1000_config_collision_dist"); + + if (hw->mac_type < e1000_82543) + coll_dist = E1000_COLLISION_DISTANCE_82542; + else + coll_dist = E1000_COLLISION_DISTANCE; + + tctl = er32(TCTL); + + tctl &= ~E1000_TCTL_COLD; + tctl |= coll_dist << E1000_COLD_SHIFT; + + ew32(TCTL, tctl); + E1000_WRITE_FLUSH(); +} + +/****************************************************************************** +* Sets MAC speed and duplex settings to reflect the those in the PHY +* +* hw - Struct containing variables accessed by shared code +* mii_reg - data to write to the MII control register +* +* The contents of the PHY register containing the needed information need to +* be passed in. +******************************************************************************/ +static s32 e1000_config_mac_to_phy(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_config_mac_to_phy"); + + /* 82544 or newer MAC, Auto Speed Detection takes care of + * MAC speed/duplex configuration.*/ + if (hw->mac_type >= e1000_82544) + return E1000_SUCCESS; + + /* Read the Device Control Register and set the bits to Force Speed + * and Duplex. + */ + ctrl = er32(CTRL); + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS); + + /* Set up duplex in the Device Control and Transmit Control + * registers depending on negotiated values. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & M88E1000_PSSR_DPLX) + ctrl |= E1000_CTRL_FD; + else + ctrl &= ~E1000_CTRL_FD; + + e1000_config_collision_dist(hw); + + /* Set up speed in the Device Control register depending on + * negotiated values. + */ + if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) + ctrl |= E1000_CTRL_SPD_1000; + else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS) + ctrl |= E1000_CTRL_SPD_100; + + /* Write the configured values back to the Device Control Reg. */ + ew32(CTRL, ctrl); + return E1000_SUCCESS; +} + +/****************************************************************************** + * Forces the MAC's flow control settings. + * + * hw - Struct containing variables accessed by shared code + * + * Sets the TFCE and RFCE bits in the device control register to reflect + * the adapter settings. TFCE and RFCE need to be explicitly set by + * software when a Copper PHY is used because autonegotiation is managed + * by the PHY rather than the MAC. Software must also configure these + * bits when link is forced on a fiber connection. + *****************************************************************************/ +s32 e1000_force_mac_fc(struct e1000_hw *hw) +{ + u32 ctrl; + + DEBUGFUNC("e1000_force_mac_fc"); + + /* Get the current configuration of the Device Control Register */ + ctrl = er32(CTRL); + + /* Because we didn't get link via the internal auto-negotiation + * mechanism (we either forced link or we got link via PHY + * auto-neg), we have to manually enable/disable transmit an + * receive flow control. + * + * The "Case" statement below enables/disable flow control + * according to the "hw->fc" parameter. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause + * frames but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames + * frames but we do not receive pause frames). + * 3: Both Rx and TX flow control (symmetric) is enabled. + * other: No other values should be possible at this point. + */ + + switch (hw->fc) { + case E1000_FC_NONE: + ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE)); + break; + case E1000_FC_RX_PAUSE: + ctrl &= (~E1000_CTRL_TFCE); + ctrl |= E1000_CTRL_RFCE; + break; + case E1000_FC_TX_PAUSE: + ctrl &= (~E1000_CTRL_RFCE); + ctrl |= E1000_CTRL_TFCE; + break; + case E1000_FC_FULL: + ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + } + + /* Disable TX Flow Control for 82542 (rev 2.0) */ + if (hw->mac_type == e1000_82542_rev2_0) + ctrl &= (~E1000_CTRL_TFCE); + + ew32(CTRL, ctrl); + return E1000_SUCCESS; +} + +/****************************************************************************** + * Configures flow control settings after link is established + * + * hw - Struct containing variables accessed by shared code + * + * Should be called immediately after a valid link has been established. + * Forces MAC flow control settings if link was forced. When in MII/GMII mode + * and autonegotiation is enabled, the MAC flow control settings will be set + * based on the flow control negotiated by the PHY. In TBI mode, the TFCE + * and RFCE bits will be automaticaly set to the negotiated flow control mode. + *****************************************************************************/ +static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_status_reg; + u16 mii_nway_adv_reg; + u16 mii_nway_lp_ability_reg; + u16 speed; + u16 duplex; + + DEBUGFUNC("e1000_config_fc_after_link_up"); + + /* Check for the case where we have fiber media and auto-neg failed + * so we had to force link. In this case, we need to force the + * configuration of the MAC to match the "fc" parameter. + */ + if (((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) || + ((hw->media_type == e1000_media_type_internal_serdes) && + (hw->autoneg_failed)) || + ((hw->media_type == e1000_media_type_copper) && (!hw->autoneg))) { + ret_val = e1000_force_mac_fc(hw); + if (ret_val) { + DEBUGOUT("Error forcing flow control settings\n"); + return ret_val; + } + } + + /* Check for the case where we have copper media and auto-neg is + * enabled. In this case, we need to check and see if Auto-Neg + * has completed, and if so, how the PHY and link partner has + * flow control configured. + */ + if ((hw->media_type == e1000_media_type_copper) && hw->autoneg) { + /* Read the MII Status Register and check to see if AutoNeg + * has completed. We read this twice because this reg has + * some "sticky" (latched) bits. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) { + /* The AutoNeg process has completed, so we now need to + * read both the Auto Negotiation Advertisement Register + * (Address 4) and the Auto_Negotiation Base Page Ability + * Register (Address 5) to determine how flow control was + * negotiated. + */ + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, + &mii_nway_adv_reg); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, + &mii_nway_lp_ability_reg); + if (ret_val) + return ret_val; + + /* Two bits in the Auto Negotiation Advertisement Register + * (Address 4) and two bits in the Auto Negotiation Base + * Page Ability Register (Address 5) determine flow control + * for both the PHY and the link partner. The following + * table, taken out of the IEEE 802.3ab/D6.0 dated March 25, + * 1999, describes these PAUSE resolution bits and how flow + * control is determined based upon these settings. + * NOTE: DC = Don't Care + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution + *-------|---------|-------|---------|-------------------- + * 0 | 0 | DC | DC | E1000_FC_NONE + * 0 | 1 | 0 | DC | E1000_FC_NONE + * 0 | 1 | 1 | 0 | E1000_FC_NONE + * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE + * 1 | 0 | 0 | DC | E1000_FC_NONE + * 1 | DC | 1 | DC | E1000_FC_FULL + * 1 | 1 | 0 | 0 | E1000_FC_NONE + * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE + * + */ + /* Are both PAUSE bits set to 1? If so, this implies + * Symmetric Flow Control is enabled at both ends. The + * ASM_DIR bits are irrelevant per the spec. + * + * For Symmetric Flow Control: + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 1 | DC | 1 | DC | E1000_FC_FULL + * + */ + if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) { + /* Now we need to check if the user selected RX ONLY + * of pause frames. In this case, we had to advertise + * FULL flow control because we could not advertise RX + * ONLY. Hence, we must now check to see if we need to + * turn OFF the TRANSMISSION of PAUSE frames. + */ + if (hw->original_fc == E1000_FC_FULL) { + hw->fc = E1000_FC_FULL; + DEBUGOUT("Flow Control = FULL.\n"); + } else { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); + } + } + /* For receiving PAUSE frames ONLY. + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE + * + */ + else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && + (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { + hw->fc = E1000_FC_TX_PAUSE; + DEBUGOUT("Flow Control = TX PAUSE frames only.\n"); + } + /* For transmitting PAUSE frames ONLY. + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE + * + */ + else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && + !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); + } + /* Per the IEEE spec, at this point flow control should be + * disabled. However, we want to consider that we could + * be connected to a legacy switch that doesn't advertise + * desired flow control, but can be forced on the link + * partner. So if we advertised no flow control, that is + * what we will resolve to. If we advertised some kind of + * receive capability (Rx Pause Only or Full Flow Control) + * and the link partner advertised none, we will configure + * ourselves to enable Rx Flow Control only. We can do + * this safely for two reasons: If the link partner really + * didn't want flow control enabled, and we enable Rx, no + * harm done since we won't be receiving any PAUSE frames + * anyway. If the intent on the link partner was to have + * flow control enabled, then by us enabling RX only, we + * can at least receive pause frames and process them. + * This is a good idea because in most cases, since we are + * predominantly a server NIC, more times than not we will + * be asked to delay transmission of packets than asking + * our link partner to pause transmission of frames. + */ + else if ((hw->original_fc == E1000_FC_NONE || + hw->original_fc == E1000_FC_TX_PAUSE) || + hw->fc_strict_ieee) { + hw->fc = E1000_FC_NONE; + DEBUGOUT("Flow Control = NONE.\n"); + } else { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); + } + + /* Now we need to do one last check... If we auto- + * negotiated to HALF DUPLEX, flow control should not be + * enabled per IEEE 802.3 spec. + */ + ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT("Error getting link speed and duplex\n"); + return ret_val; + } + + if (duplex == HALF_DUPLEX) + hw->fc = E1000_FC_NONE; + + /* Now we call a subroutine to actually force the MAC + * controller to use the correct flow control settings. + */ + ret_val = e1000_force_mac_fc(hw); + if (ret_val) { + DEBUGOUT("Error forcing flow control settings\n"); + return ret_val; + } + } else { + DEBUGOUT("Copper PHY and Auto Neg has not completed.\n"); + } + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Checks to see if the link status of the hardware has changed. + * + * hw - Struct containing variables accessed by shared code + * + * Called by any function that needs to check the link status of the adapter. + *****************************************************************************/ +s32 e1000_check_for_link(struct e1000_hw *hw) +{ + u32 rxcw = 0; + u32 ctrl; + u32 status; + u32 rctl; + u32 icr; + u32 signal = 0; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_for_link"); + + ctrl = er32(CTRL); + status = er32(STATUS); + + /* On adapters with a MAC newer than 82544, SW Defineable pin 1 will be + * set when the optics detect a signal. On older adapters, it will be + * cleared when there is a signal. This applies to fiber media only. + */ + if ((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) { + rxcw = er32(RXCW); + + if (hw->media_type == e1000_media_type_fiber) { + signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; + if (status & E1000_STATUS_LU) + hw->get_link_status = false; + } + } + + /* If we have a copper PHY then we only want to go out to the PHY + * registers to see if Auto-Neg has completed and/or if our link + * status has changed. The get_link_status flag will be set if we + * receive a Link Status Change interrupt or we have Rx Sequence + * Errors. + */ + if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) { + /* First we want to see if the MII Status Register reports + * link. If so, then we want to get the current speed/duplex + * of the PHY. + * Read the register twice since the link bit is sticky. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & MII_SR_LINK_STATUS) { + hw->get_link_status = false; + /* Check if there was DownShift, must be checked immediately after + * link-up */ + e1000_check_downshift(hw); + + /* If we are on 82544 or 82543 silicon and speed/duplex + * are forced to 10H or 10F, then we will implement the polarity + * reversal workaround. We disable interrupts first, and upon + * returning, place the devices interrupt state to its previous + * value except for the link status change interrupt which will + * happen due to the execution of this workaround. + */ + + if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && + (!hw->autoneg) && + (hw->forced_speed_duplex == e1000_10_full || + hw->forced_speed_duplex == e1000_10_half)) { + ew32(IMC, 0xffffffff); + ret_val = e1000_polarity_reversal_workaround(hw); + icr = er32(ICR); + ew32(ICS, (icr & ~E1000_ICS_LSC)); + ew32(IMS, IMS_ENABLE_MASK); + } + + } else { + /* No link detected */ + e1000_config_dsp_after_link_change(hw, false); + return 0; + } + + /* If we are forcing speed/duplex, then we simply return since + * we have already determined whether we have link or not. + */ + if (!hw->autoneg) return -E1000_ERR_CONFIG; + + /* optimize the dsp settings for the igp phy */ + e1000_config_dsp_after_link_change(hw, true); + + /* We have a M88E1000 PHY and Auto-Neg is enabled. If we + * have Si on board that is 82544 or newer, Auto + * Speed Detection takes care of MAC speed/duplex + * configuration. So we only need to configure Collision + * Distance in the MAC. Otherwise, we need to force + * speed/duplex on the MAC to the current PHY speed/duplex + * settings. + */ + if (hw->mac_type >= e1000_82544) + e1000_config_collision_dist(hw); + else { + ret_val = e1000_config_mac_to_phy(hw); + if (ret_val) { + DEBUGOUT("Error configuring MAC to PHY settings\n"); + return ret_val; + } + } + + /* Configure Flow Control now that Auto-Neg has completed. First, we + * need to restore the desired flow control settings because we may + * have had to re-autoneg with a different link partner. + */ + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error configuring flow control\n"); + return ret_val; + } + + /* At this point we know that we are on copper and we have + * auto-negotiated link. These are conditions for checking the link + * partner capability register. We use the link speed to determine if + * TBI compatibility needs to be turned on or off. If the link is not + * at gigabit speed, then TBI compatibility is not needed. If we are + * at gigabit speed, we turn on TBI compatibility. + */ + if (hw->tbi_compatibility_en) { + u16 speed, duplex; + ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT("Error getting link speed and duplex\n"); + return ret_val; + } + if (speed != SPEED_1000) { + /* If link speed is not set to gigabit speed, we do not need + * to enable TBI compatibility. + */ + if (hw->tbi_compatibility_on) { + /* If we previously were in the mode, turn it off. */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_SBP; + ew32(RCTL, rctl); + hw->tbi_compatibility_on = false; + } + } else { + /* If TBI compatibility is was previously off, turn it on. For + * compatibility with a TBI link partner, we will store bad + * packets. Some frames have an additional byte on the end and + * will look like CRC errors to to the hardware. + */ + if (!hw->tbi_compatibility_on) { + hw->tbi_compatibility_on = true; + rctl = er32(RCTL); + rctl |= E1000_RCTL_SBP; + ew32(RCTL, rctl); + } + } + } + } + /* If we don't have link (auto-negotiation failed or link partner cannot + * auto-negotiate), the cable is plugged in (we have signal), and our + * link partner is not trying to auto-negotiate with us (we are receiving + * idles or data), we need to force link up. We also need to give + * auto-negotiation time to complete, in case the cable was just plugged + * in. The autoneg_failed flag does this. + */ + else if ((((hw->media_type == e1000_media_type_fiber) && + ((ctrl & E1000_CTRL_SWDPIN1) == signal)) || + (hw->media_type == e1000_media_type_internal_serdes)) && + (!(status & E1000_STATUS_LU)) && + (!(rxcw & E1000_RXCW_C))) { + if (hw->autoneg_failed == 0) { + hw->autoneg_failed = 1; + return 0; + } + DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n"); + + /* Disable auto-negotiation in the TXCW register */ + ew32(TXCW, (hw->txcw & ~E1000_TXCW_ANE)); + + /* Force link-up and also force full-duplex. */ + ctrl = er32(CTRL); + ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD); + ew32(CTRL, ctrl); + + /* Configure Flow Control after forcing link up. */ + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error configuring flow control\n"); + return ret_val; + } + } + /* If we are forcing link and we are receiving /C/ ordered sets, re-enable + * auto-negotiation in the TXCW register and disable forced link in the + * Device Control register in an attempt to auto-negotiate with our link + * partner. + */ + else if (((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) && + (ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { + DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n"); + ew32(TXCW, hw->txcw); + ew32(CTRL, (ctrl & ~E1000_CTRL_SLU)); + + hw->serdes_link_down = false; + } + /* If we force link for non-auto-negotiation switch, check link status + * based on MAC synchronization for internal serdes media type. + */ + else if ((hw->media_type == e1000_media_type_internal_serdes) && + !(E1000_TXCW_ANE & er32(TXCW))) { + /* SYNCH bit and IV bit are sticky. */ + udelay(10); + if (E1000_RXCW_SYNCH & er32(RXCW)) { + if (!(rxcw & E1000_RXCW_IV)) { + hw->serdes_link_down = false; + DEBUGOUT("SERDES: Link is up.\n"); + } + } else { + hw->serdes_link_down = true; + DEBUGOUT("SERDES: Link is down.\n"); + } + } + if ((hw->media_type == e1000_media_type_internal_serdes) && + (E1000_TXCW_ANE & er32(TXCW))) { + hw->serdes_link_down = !(E1000_STATUS_LU & er32(STATUS)); + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Detects the current speed and duplex settings of the hardware. + * + * hw - Struct containing variables accessed by shared code + * speed - Speed of the connection + * duplex - Duplex setting of the connection + *****************************************************************************/ +s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed, u16 *duplex) +{ + u32 status; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_get_speed_and_duplex"); + + if (hw->mac_type >= e1000_82543) { + status = er32(STATUS); + if (status & E1000_STATUS_SPEED_1000) { + *speed = SPEED_1000; + DEBUGOUT("1000 Mbs, "); + } else if (status & E1000_STATUS_SPEED_100) { + *speed = SPEED_100; + DEBUGOUT("100 Mbs, "); + } else { + *speed = SPEED_10; + DEBUGOUT("10 Mbs, "); + } + + if (status & E1000_STATUS_FD) { + *duplex = FULL_DUPLEX; + DEBUGOUT("Full Duplex\n"); + } else { + *duplex = HALF_DUPLEX; + DEBUGOUT(" Half Duplex\n"); + } + } else { + DEBUGOUT("1000 Mbs, Full Duplex\n"); + *speed = SPEED_1000; + *duplex = FULL_DUPLEX; + } + + /* IGP01 PHY may advertise full duplex operation after speed downgrade even + * if it is operating at half duplex. Here we set the duplex settings to + * match the duplex in the link partner's capabilities. + */ + if (hw->phy_type == e1000_phy_igp && hw->speed_downgraded) { + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &phy_data); + if (ret_val) + return ret_val; + + if (!(phy_data & NWAY_ER_LP_NWAY_CAPS)) + *duplex = HALF_DUPLEX; + else { + ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, &phy_data); + if (ret_val) + return ret_val; + if ((*speed == SPEED_100 && !(phy_data & NWAY_LPAR_100TX_FD_CAPS)) || + (*speed == SPEED_10 && !(phy_data & NWAY_LPAR_10T_FD_CAPS))) + *duplex = HALF_DUPLEX; + } + } + + if ((hw->mac_type == e1000_80003es2lan) && + (hw->media_type == e1000_media_type_copper)) { + if (*speed == SPEED_1000) + ret_val = e1000_configure_kmrn_for_1000(hw); + else + ret_val = e1000_configure_kmrn_for_10_100(hw, *duplex); + if (ret_val) + return ret_val; + } + + if ((hw->phy_type == e1000_phy_igp_3) && (*speed == SPEED_1000)) { + ret_val = e1000_kumeran_lock_loss_workaround(hw); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Blocks until autoneg completes or times out (~4.5 seconds) +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_wait_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 i; + u16 phy_data; + + DEBUGFUNC("e1000_wait_autoneg"); + DEBUGOUT("Waiting for Auto-Neg to complete.\n"); + + /* We will wait for autoneg to complete or 4.5 seconds to expire. */ + for (i = PHY_AUTO_NEG_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Auto-Neg + * Complete bit to be set. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + if (phy_data & MII_SR_AUTONEG_COMPLETE) { + return E1000_SUCCESS; + } + msleep(100); + } + return E1000_SUCCESS; +} + +/****************************************************************************** +* Raises the Management Data Clock +* +* hw - Struct containing variables accessed by shared code +* ctrl - Device control register's current value +******************************************************************************/ +static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl) +{ + /* Raise the clock input to the Management Data Clock (by setting the MDC + * bit), and then delay 10 microseconds. + */ + ew32(CTRL, (*ctrl | E1000_CTRL_MDC)); + E1000_WRITE_FLUSH(); + udelay(10); +} + +/****************************************************************************** +* Lowers the Management Data Clock +* +* hw - Struct containing variables accessed by shared code +* ctrl - Device control register's current value +******************************************************************************/ +static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl) +{ + /* Lower the clock input to the Management Data Clock (by clearing the MDC + * bit), and then delay 10 microseconds. + */ + ew32(CTRL, (*ctrl & ~E1000_CTRL_MDC)); + E1000_WRITE_FLUSH(); + udelay(10); +} + +/****************************************************************************** +* Shifts data bits out to the PHY +* +* hw - Struct containing variables accessed by shared code +* data - Data to send out to the PHY +* count - Number of bits to shift out +* +* Bits are shifted out in MSB to LSB order. +******************************************************************************/ +static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, u16 count) +{ + u32 ctrl; + u32 mask; + + /* We need to shift "count" number of bits out to the PHY. So, the value + * in the "data" parameter will be shifted out to the PHY one bit at a + * time. In order to do this, "data" must be broken down into bits. + */ + mask = 0x01; + mask <<= (count - 1); + + ctrl = er32(CTRL); + + /* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */ + ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR); + + while (mask) { + /* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and + * then raising and lowering the Management Data Clock. A "0" is + * shifted out to the PHY by setting the MDIO bit to "0" and then + * raising and lowering the clock. + */ + if (data & mask) + ctrl |= E1000_CTRL_MDIO; + else + ctrl &= ~E1000_CTRL_MDIO; + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + udelay(10); + + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + mask = mask >> 1; + } +} + +/****************************************************************************** +* Shifts data bits in from the PHY +* +* hw - Struct containing variables accessed by shared code +* +* Bits are shifted in in MSB to LSB order. +******************************************************************************/ +static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw) +{ + u32 ctrl; + u16 data = 0; + u8 i; + + /* In order to read a register from the PHY, we need to shift in a total + * of 18 bits from the PHY. The first two bit (turnaround) times are used + * to avoid contention on the MDIO pin when a read operation is performed. + * These two bits are ignored by us and thrown away. Bits are "shifted in" + * by raising the input to the Management Data Clock (setting the MDC bit), + * and then reading the value of the MDIO bit. + */ + ctrl = er32(CTRL); + + /* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */ + ctrl &= ~E1000_CTRL_MDIO_DIR; + ctrl &= ~E1000_CTRL_MDIO; + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + /* Raise and Lower the clock before reading in the data. This accounts for + * the turnaround bits. The first clock occurred when we clocked out the + * last bit of the Register Address. + */ + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + for (data = 0, i = 0; i < 16; i++) { + data = data << 1; + e1000_raise_mdi_clk(hw, &ctrl); + ctrl = er32(CTRL); + /* Check to see if we shifted in a "1". */ + if (ctrl & E1000_CTRL_MDIO) + data |= 1; + e1000_lower_mdi_clk(hw, &ctrl); + } + + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + return data; +} + +static s32 e1000_swfw_sync_acquire(struct e1000_hw *hw, u16 mask) +{ + u32 swfw_sync = 0; + u32 swmask = mask; + u32 fwmask = mask << 16; + s32 timeout = 200; + + DEBUGFUNC("e1000_swfw_sync_acquire"); + + if (hw->swfwhw_semaphore_present) + return e1000_get_software_flag(hw); + + if (!hw->swfw_sync_present) + return e1000_get_hw_eeprom_semaphore(hw); + + while (timeout) { + if (e1000_get_hw_eeprom_semaphore(hw)) + return -E1000_ERR_SWFW_SYNC; + + swfw_sync = er32(SW_FW_SYNC); + if (!(swfw_sync & (fwmask | swmask))) { + break; + } + + /* firmware currently using resource (fwmask) */ + /* or other software thread currently using resource (swmask) */ + e1000_put_hw_eeprom_semaphore(hw); + mdelay(5); + timeout--; + } + + if (!timeout) { + DEBUGOUT("Driver can't access resource, SW_FW_SYNC timeout.\n"); + return -E1000_ERR_SWFW_SYNC; + } + + swfw_sync |= swmask; + ew32(SW_FW_SYNC, swfw_sync); + + e1000_put_hw_eeprom_semaphore(hw); + return E1000_SUCCESS; +} + +static void e1000_swfw_sync_release(struct e1000_hw *hw, u16 mask) +{ + u32 swfw_sync; + u32 swmask = mask; + + DEBUGFUNC("e1000_swfw_sync_release"); + + if (hw->swfwhw_semaphore_present) { + e1000_release_software_flag(hw); + return; + } + + if (!hw->swfw_sync_present) { + e1000_put_hw_eeprom_semaphore(hw); + return; + } + + /* if (e1000_get_hw_eeprom_semaphore(hw)) + * return -E1000_ERR_SWFW_SYNC; */ + while (e1000_get_hw_eeprom_semaphore(hw) != E1000_SUCCESS); + /* empty */ + + swfw_sync = er32(SW_FW_SYNC); + swfw_sync &= ~swmask; + ew32(SW_FW_SYNC, swfw_sync); + + e1000_put_hw_eeprom_semaphore(hw); +} + +/***************************************************************************** +* Reads the value from a PHY register, if the value is on a specific non zero +* page, sets the page first. +* hw - Struct containing variables accessed by shared code +* reg_addr - address of the PHY register to read +******************************************************************************/ +s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 *phy_data) +{ + u32 ret_val; + u16 swfw; + + DEBUGFUNC("e1000_read_phy_reg"); + + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) + return -E1000_ERR_SWFW_SYNC; + + if ((hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) && + (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { + ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, + (u16)reg_addr); + if (ret_val) { + e1000_swfw_sync_release(hw, swfw); + return ret_val; + } + } else if (hw->phy_type == e1000_phy_gg82563) { + if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || + (hw->mac_type == e1000_80003es2lan)) { + /* Select Configuration Page */ + if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { + ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, + (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); + } else { + /* Use Alternative Page Select register to access + * registers 30 and 31 + */ + ret_val = e1000_write_phy_reg_ex(hw, + GG82563_PHY_PAGE_SELECT_ALT, + (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); + } + + if (ret_val) { + e1000_swfw_sync_release(hw, swfw); + return ret_val; + } + } + } + + ret_val = e1000_read_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, + phy_data); + + e1000_swfw_sync_release(hw, swfw); + return ret_val; +} + +static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 *phy_data) +{ + u32 i; + u32 mdic = 0; + const u32 phy_addr = 1; + + DEBUGFUNC("e1000_read_phy_reg_ex"); + + if (reg_addr > MAX_PHY_REG_ADDRESS) { + DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); + return -E1000_ERR_PARAM; + } + + if (hw->mac_type > e1000_82543) { + /* Set up Op-code, Phy Address, and register address in the MDI + * Control register. The MAC will take care of interfacing with the + * PHY to retrieve the desired data. + */ + mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) | + (phy_addr << E1000_MDIC_PHY_SHIFT) | + (E1000_MDIC_OP_READ)); + + ew32(MDIC, mdic); + + /* Poll the ready bit to see if the MDI read completed */ + for (i = 0; i < 64; i++) { + udelay(50); + mdic = er32(MDIC); + if (mdic & E1000_MDIC_READY) break; + } + if (!(mdic & E1000_MDIC_READY)) { + DEBUGOUT("MDI Read did not complete\n"); + return -E1000_ERR_PHY; + } + if (mdic & E1000_MDIC_ERROR) { + DEBUGOUT("MDI Error\n"); + return -E1000_ERR_PHY; + } + *phy_data = (u16)mdic; + } else { + /* We must first send a preamble through the MDIO pin to signal the + * beginning of an MII instruction. This is done by sending 32 + * consecutive "1" bits. + */ + e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); + + /* Now combine the next few fields that are required for a read + * operation. We use this method instead of calling the + * e1000_shift_out_mdi_bits routine five different times. The format of + * a MII read instruction consists of a shift out of 14 bits and is + * defined as follows: + * + * followed by a shift in of 18 bits. This first two bits shifted in + * are TurnAround bits used to avoid contention on the MDIO pin when a + * READ operation is performed. These two bits are thrown away + * followed by a shift in of 16 bits which contains the desired data. + */ + mdic = ((reg_addr) | (phy_addr << 5) | + (PHY_OP_READ << 10) | (PHY_SOF << 12)); + + e1000_shift_out_mdi_bits(hw, mdic, 14); + + /* Now that we've shifted out the read command to the MII, we need to + * "shift in" the 16-bit value (18 total bits) of the requested PHY + * register address. + */ + *phy_data = e1000_shift_in_mdi_bits(hw); + } + return E1000_SUCCESS; +} + +/****************************************************************************** +* Writes a value to a PHY register +* +* hw - Struct containing variables accessed by shared code +* reg_addr - address of the PHY register to write +* data - data to write to the PHY +******************************************************************************/ +s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 phy_data) +{ + u32 ret_val; + u16 swfw; + + DEBUGFUNC("e1000_write_phy_reg"); + + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) + return -E1000_ERR_SWFW_SYNC; + + if ((hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) && + (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { + ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, + (u16)reg_addr); + if (ret_val) { + e1000_swfw_sync_release(hw, swfw); + return ret_val; + } + } else if (hw->phy_type == e1000_phy_gg82563) { + if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || + (hw->mac_type == e1000_80003es2lan)) { + /* Select Configuration Page */ + if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { + ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, + (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); + } else { + /* Use Alternative Page Select register to access + * registers 30 and 31 + */ + ret_val = e1000_write_phy_reg_ex(hw, + GG82563_PHY_PAGE_SELECT_ALT, + (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); + } + + if (ret_val) { + e1000_swfw_sync_release(hw, swfw); + return ret_val; + } + } + } + + ret_val = e1000_write_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, + phy_data); + + e1000_swfw_sync_release(hw, swfw); + return ret_val; +} + +static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 phy_data) +{ + u32 i; + u32 mdic = 0; + const u32 phy_addr = 1; + + DEBUGFUNC("e1000_write_phy_reg_ex"); + + if (reg_addr > MAX_PHY_REG_ADDRESS) { + DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); + return -E1000_ERR_PARAM; + } + + if (hw->mac_type > e1000_82543) { + /* Set up Op-code, Phy Address, register address, and data intended + * for the PHY register in the MDI Control register. The MAC will take + * care of interfacing with the PHY to send the desired data. + */ + mdic = (((u32)phy_data) | + (reg_addr << E1000_MDIC_REG_SHIFT) | + (phy_addr << E1000_MDIC_PHY_SHIFT) | + (E1000_MDIC_OP_WRITE)); + + ew32(MDIC, mdic); + + /* Poll the ready bit to see if the MDI read completed */ + for (i = 0; i < 641; i++) { + udelay(5); + mdic = er32(MDIC); + if (mdic & E1000_MDIC_READY) break; + } + if (!(mdic & E1000_MDIC_READY)) { + DEBUGOUT("MDI Write did not complete\n"); + return -E1000_ERR_PHY; + } + } else { + /* We'll need to use the SW defined pins to shift the write command + * out to the PHY. We first send a preamble to the PHY to signal the + * beginning of the MII instruction. This is done by sending 32 + * consecutive "1" bits. + */ + e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); + + /* Now combine the remaining required fields that will indicate a + * write operation. We use this method instead of calling the + * e1000_shift_out_mdi_bits routine for each field in the command. The + * format of a MII write instruction is as follows: + * . + */ + mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) | + (PHY_OP_WRITE << 12) | (PHY_SOF << 14)); + mdic <<= 16; + mdic |= (u32)phy_data; + + e1000_shift_out_mdi_bits(hw, mdic, 32); + } + + return E1000_SUCCESS; +} + +static s32 e1000_read_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 *data) +{ + u32 reg_val; + u16 swfw; + DEBUGFUNC("e1000_read_kmrn_reg"); + + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) + return -E1000_ERR_SWFW_SYNC; + + /* Write register address */ + reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & + E1000_KUMCTRLSTA_OFFSET) | + E1000_KUMCTRLSTA_REN; + ew32(KUMCTRLSTA, reg_val); + udelay(2); + + /* Read the data returned */ + reg_val = er32(KUMCTRLSTA); + *data = (u16)reg_val; + + e1000_swfw_sync_release(hw, swfw); + return E1000_SUCCESS; +} + +static s32 e1000_write_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 data) +{ + u32 reg_val; + u16 swfw; + DEBUGFUNC("e1000_write_kmrn_reg"); + + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) + return -E1000_ERR_SWFW_SYNC; + + reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & + E1000_KUMCTRLSTA_OFFSET) | data; + ew32(KUMCTRLSTA, reg_val); + udelay(2); + + e1000_swfw_sync_release(hw, swfw); + return E1000_SUCCESS; +} + +/****************************************************************************** +* Returns the PHY to the power-on reset state +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +s32 e1000_phy_hw_reset(struct e1000_hw *hw) +{ + u32 ctrl, ctrl_ext; + u32 led_ctrl; + s32 ret_val; + u16 swfw; + + DEBUGFUNC("e1000_phy_hw_reset"); + + /* In the case of the phy reset being blocked, it's not an error, we + * simply return success without performing the reset. */ + ret_val = e1000_check_phy_reset_block(hw); + if (ret_val) + return E1000_SUCCESS; + + DEBUGOUT("Resetting Phy...\n"); + + if (hw->mac_type > e1000_82543) { + if ((hw->mac_type == e1000_80003es2lan) && + (er32(STATUS) & E1000_STATUS_FUNC_1)) { + swfw = E1000_SWFW_PHY1_SM; + } else { + swfw = E1000_SWFW_PHY0_SM; + } + if (e1000_swfw_sync_acquire(hw, swfw)) { + DEBUGOUT("Unable to acquire swfw sync\n"); + return -E1000_ERR_SWFW_SYNC; + } + /* Read the device control register and assert the E1000_CTRL_PHY_RST + * bit. Then, take it out of reset. + * For pre-e1000_82571 hardware, we delay for 10ms between the assert + * and deassert. For e1000_82571 hardware and later, we instead delay + * for 50us between and 10ms after the deassertion. + */ + ctrl = er32(CTRL); + ew32(CTRL, ctrl | E1000_CTRL_PHY_RST); + E1000_WRITE_FLUSH(); + + if (hw->mac_type < e1000_82571) + msleep(10); + else + udelay(100); + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + if (hw->mac_type >= e1000_82571) + mdelay(10); + + e1000_swfw_sync_release(hw, swfw); + } else { + /* Read the Extended Device Control Register, assert the PHY_RESET_DIR + * bit to put the PHY into reset. Then, take it out of reset. + */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR; + ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + msleep(10); + ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + } + udelay(150); + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* Wait for FW to finish PHY configuration. */ + ret_val = e1000_get_phy_cfg_done(hw); + if (ret_val != E1000_SUCCESS) + return ret_val; + e1000_release_software_semaphore(hw); + + if ((hw->mac_type == e1000_ich8lan) && (hw->phy_type == e1000_phy_igp_3)) + ret_val = e1000_init_lcd_from_nvm(hw); + + return ret_val; +} + +/****************************************************************************** +* Resets the PHY +* +* hw - Struct containing variables accessed by shared code +* +* Sets bit 15 of the MII Control register +******************************************************************************/ +s32 e1000_phy_reset(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_phy_reset"); + + /* In the case of the phy reset being blocked, it's not an error, we + * simply return success without performing the reset. */ + ret_val = e1000_check_phy_reset_block(hw); + if (ret_val) + return E1000_SUCCESS; + + switch (hw->phy_type) { + case e1000_phy_igp: + case e1000_phy_igp_2: + case e1000_phy_igp_3: + case e1000_phy_ife: + ret_val = e1000_phy_hw_reset(hw); + if (ret_val) + return ret_val; + break; + default: + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= MII_CR_RESET; + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); + if (ret_val) + return ret_val; + + udelay(1); + break; + } + + if (hw->phy_type == e1000_phy_igp || hw->phy_type == e1000_phy_igp_2) + e1000_phy_init_script(hw); + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Work-around for 82566 power-down: on D3 entry- +* 1) disable gigabit link +* 2) write VR power-down enable +* 3) read it back +* if successful continue, else issue LCD reset and repeat +* +* hw - struct containing variables accessed by shared code +******************************************************************************/ +void e1000_phy_powerdown_workaround(struct e1000_hw *hw) +{ + s32 reg; + u16 phy_data; + s32 retry = 0; + + DEBUGFUNC("e1000_phy_powerdown_workaround"); + + if (hw->phy_type != e1000_phy_igp_3) + return; + + do { + /* Disable link */ + reg = er32(PHY_CTRL); + ew32(PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | + E1000_PHY_CTRL_NOND0A_GBE_DISABLE); + + /* Write VR power-down enable - bits 9:8 should be 10b */ + e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); + phy_data |= (1 << 9); + phy_data &= ~(1 << 8); + e1000_write_phy_reg(hw, IGP3_VR_CTRL, phy_data); + + /* Read it back and test */ + e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); + if (((phy_data & IGP3_VR_CTRL_MODE_MASK) == IGP3_VR_CTRL_MODE_SHUT) || retry) + break; + + /* Issue PHY reset and repeat at most one more time */ + reg = er32(CTRL); + ew32(CTRL, reg | E1000_CTRL_PHY_RST); + retry++; + } while (retry); + + return; + +} + +/****************************************************************************** +* Work-around for 82566 Kumeran PCS lock loss: +* On link status change (i.e. PCI reset, speed change) and link is up and +* speed is gigabit- +* 0) if workaround is optionally disabled do nothing +* 1) wait 1ms for Kumeran link to come up +* 2) check Kumeran Diagnostic register PCS lock loss bit +* 3) if not set the link is locked (all is good), otherwise... +* 4) reset the PHY +* 5) repeat up to 10 times +* Note: this is only called for IGP3 copper when speed is 1gb. +* +* hw - struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw) +{ + s32 ret_val; + s32 reg; + s32 cnt; + u16 phy_data; + + if (hw->kmrn_lock_loss_workaround_disabled) + return E1000_SUCCESS; + + /* Make sure link is up before proceeding. If not just return. + * Attempting this while link is negotiating fouled up link + * stability */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + + if (phy_data & MII_SR_LINK_STATUS) { + for (cnt = 0; cnt < 10; cnt++) { + /* read once to clear */ + ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); + if (ret_val) + return ret_val; + /* and again to get new status */ + ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); + if (ret_val) + return ret_val; + + /* check for PCS lock */ + if (!(phy_data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS)) + return E1000_SUCCESS; + + /* Issue PHY reset */ + e1000_phy_hw_reset(hw); + mdelay(5); + } + /* Disable GigE link negotiation */ + reg = er32(PHY_CTRL); + ew32(PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | + E1000_PHY_CTRL_NOND0A_GBE_DISABLE); + + /* unable to acquire PCS lock */ + return E1000_ERR_PHY; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Probes the expected PHY address for known PHY IDs +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_detect_gig_phy(struct e1000_hw *hw) +{ + s32 phy_init_status, ret_val; + u16 phy_id_high, phy_id_low; + bool match = false; + + DEBUGFUNC("e1000_detect_gig_phy"); + + if (hw->phy_id != 0) + return E1000_SUCCESS; + + /* The 82571 firmware may still be configuring the PHY. In this + * case, we cannot access the PHY until the configuration is done. So + * we explicitly set the PHY values. */ + if (hw->mac_type == e1000_82571 || + hw->mac_type == e1000_82572) { + hw->phy_id = IGP01E1000_I_PHY_ID; + hw->phy_type = e1000_phy_igp_2; + return E1000_SUCCESS; + } + + /* ESB-2 PHY reads require e1000_phy_gg82563 to be set because of a work- + * around that forces PHY page 0 to be set or the reads fail. The rest of + * the code in this routine uses e1000_read_phy_reg to read the PHY ID. + * So for ESB-2 we need to have this set so our reads won't fail. If the + * attached PHY is not a e1000_phy_gg82563, the routines below will figure + * this out as well. */ + if (hw->mac_type == e1000_80003es2lan) + hw->phy_type = e1000_phy_gg82563; + + /* Read the PHY ID Registers to identify which PHY is onboard. */ + ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high); + if (ret_val) + return ret_val; + + hw->phy_id = (u32)(phy_id_high << 16); + udelay(20); + ret_val = e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low); + if (ret_val) + return ret_val; + + hw->phy_id |= (u32)(phy_id_low & PHY_REVISION_MASK); + hw->phy_revision = (u32)phy_id_low & ~PHY_REVISION_MASK; + + switch (hw->mac_type) { + case e1000_82543: + if (hw->phy_id == M88E1000_E_PHY_ID) match = true; + break; + case e1000_82544: + if (hw->phy_id == M88E1000_I_PHY_ID) match = true; + break; + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + if (hw->phy_id == M88E1011_I_PHY_ID) match = true; + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (hw->phy_id == IGP01E1000_I_PHY_ID) match = true; + break; + case e1000_82573: + if (hw->phy_id == M88E1111_I_PHY_ID) match = true; + break; + case e1000_80003es2lan: + if (hw->phy_id == GG82563_E_PHY_ID) match = true; + break; + case e1000_ich8lan: + if (hw->phy_id == IGP03E1000_E_PHY_ID) match = true; + if (hw->phy_id == IFE_E_PHY_ID) match = true; + if (hw->phy_id == IFE_PLUS_E_PHY_ID) match = true; + if (hw->phy_id == IFE_C_E_PHY_ID) match = true; + break; + default: + DEBUGOUT1("Invalid MAC type %d\n", hw->mac_type); + return -E1000_ERR_CONFIG; + } + phy_init_status = e1000_set_phy_type(hw); + + if ((match) && (phy_init_status == E1000_SUCCESS)) { + DEBUGOUT1("PHY ID 0x%X detected\n", hw->phy_id); + return E1000_SUCCESS; + } + DEBUGOUT1("Invalid PHY ID 0x%X\n", hw->phy_id); + return -E1000_ERR_PHY; +} + +/****************************************************************************** +* Resets the PHY's DSP +* +* hw - Struct containing variables accessed by shared code +******************************************************************************/ +static s32 e1000_phy_reset_dsp(struct e1000_hw *hw) +{ + s32 ret_val; + DEBUGFUNC("e1000_phy_reset_dsp"); + + do { + if (hw->phy_type != e1000_phy_gg82563) { + ret_val = e1000_write_phy_reg(hw, 29, 0x001d); + if (ret_val) break; + } + ret_val = e1000_write_phy_reg(hw, 30, 0x00c1); + if (ret_val) break; + ret_val = e1000_write_phy_reg(hw, 30, 0x0000); + if (ret_val) break; + ret_val = E1000_SUCCESS; + } while (0); + + return ret_val; +} + +/****************************************************************************** +* Get PHY information from various PHY registers for igp PHY only. +* +* hw - Struct containing variables accessed by shared code +* phy_info - PHY information structure +******************************************************************************/ +static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data, min_length, max_length, average; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_igp_get_info"); + + /* The downshift status is checked only once, after link is established, + * and it stored in the hw->speed_downgraded parameter. */ + phy_info->downshift = (e1000_downshift)hw->speed_downgraded; + + /* IGP01E1000 does not need to support it. */ + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; + + /* IGP01E1000 always correct polarity reversal */ + phy_info->polarity_correction = e1000_polarity_reversal_enabled; + + /* Check polarity status */ + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & IGP01E1000_PSSR_MDIX) >> + IGP01E1000_PSSR_MDIX_SHIFT); + + if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == + IGP01E1000_PSSR_SPEED_1000MBPS) { + /* Local/Remote Receiver Information are only valid at 1000 Mbps */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> + SR_1000T_LOCAL_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> + SR_1000T_REMOTE_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + + /* Get cable length */ + ret_val = e1000_get_cable_length(hw, &min_length, &max_length); + if (ret_val) + return ret_val; + + /* Translate to old method */ + average = (max_length + min_length) / 2; + + if (average <= e1000_igp_cable_length_50) + phy_info->cable_length = e1000_cable_length_50; + else if (average <= e1000_igp_cable_length_80) + phy_info->cable_length = e1000_cable_length_50_80; + else if (average <= e1000_igp_cable_length_110) + phy_info->cable_length = e1000_cable_length_80_110; + else if (average <= e1000_igp_cable_length_140) + phy_info->cable_length = e1000_cable_length_110_140; + else + phy_info->cable_length = e1000_cable_length_140; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Get PHY information from various PHY registers for ife PHY only. +* +* hw - Struct containing variables accessed by shared code +* phy_info - PHY information structure +******************************************************************************/ +static s32 e1000_phy_ife_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_ife_get_info"); + + phy_info->downshift = (e1000_downshift)hw->speed_downgraded; + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; + + ret_val = e1000_read_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, &phy_data); + if (ret_val) + return ret_val; + phy_info->polarity_correction = + ((phy_data & IFE_PSC_AUTO_POLARITY_DISABLE) >> + IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT) ? + e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; + + if (phy_info->polarity_correction == e1000_polarity_reversal_enabled) { + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + } else { + /* Polarity is forced. */ + polarity = ((phy_data & IFE_PSC_FORCE_POLARITY) >> + IFE_PSC_FORCE_POLARITY_SHIFT) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + } + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = (e1000_auto_x_mode) + ((phy_data & (IFE_PMC_AUTO_MDIX | IFE_PMC_FORCE_MDIX)) >> + IFE_PMC_MDIX_MODE_SHIFT); + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Get PHY information from various PHY registers fot m88 PHY only. +* +* hw - Struct containing variables accessed by shared code +* phy_info - PHY information structure +******************************************************************************/ +static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_m88_get_info"); + + /* The downshift status is checked only once, after link is established, + * and it stored in the hw->speed_downgraded parameter. */ + phy_info->downshift = (e1000_downshift)hw->speed_downgraded; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_info->extended_10bt_distance = + ((phy_data & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >> + M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT) ? + e1000_10bt_ext_dist_enable_lower : e1000_10bt_ext_dist_enable_normal; + + phy_info->polarity_correction = + ((phy_data & M88E1000_PSCR_POLARITY_REVERSAL) >> + M88E1000_PSCR_POLARITY_REVERSAL_SHIFT) ? + e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; + + /* Check polarity status */ + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & M88E1000_PSSR_MDIX) >> + M88E1000_PSSR_MDIX_SHIFT); + + if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) { + /* Cable Length Estimation and Local/Remote Receiver Information + * are only valid at 1000 Mbps. + */ + if (hw->phy_type != e1000_phy_gg82563) { + phy_info->cable_length = (e1000_cable_length)((phy_data & M88E1000_PSSR_CABLE_LENGTH) >> + M88E1000_PSSR_CABLE_LENGTH_SHIFT); + } else { + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, + &phy_data); + if (ret_val) + return ret_val; + + phy_info->cable_length = (e1000_cable_length)(phy_data & GG82563_DSPD_CABLE_LENGTH); + } + + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> + SR_1000T_LOCAL_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> + SR_1000T_REMOTE_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + + } + + return E1000_SUCCESS; +} + +/****************************************************************************** +* Get PHY information from various PHY registers +* +* hw - Struct containing variables accessed by shared code +* phy_info - PHY information structure +******************************************************************************/ +s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_phy_get_info"); + + phy_info->cable_length = e1000_cable_length_undefined; + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined; + phy_info->cable_polarity = e1000_rev_polarity_undefined; + phy_info->downshift = e1000_downshift_undefined; + phy_info->polarity_correction = e1000_polarity_reversal_undefined; + phy_info->mdix_mode = e1000_auto_x_mode_undefined; + phy_info->local_rx = e1000_1000t_rx_status_undefined; + phy_info->remote_rx = e1000_1000t_rx_status_undefined; + + if (hw->media_type != e1000_media_type_copper) { + DEBUGOUT("PHY info is only valid for copper media\n"); + return -E1000_ERR_CONFIG; + } + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if ((phy_data & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS) { + DEBUGOUT("PHY info is only valid if link is up\n"); + return -E1000_ERR_CONFIG; + } + + if (hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) + return e1000_phy_igp_get_info(hw, phy_info); + else if (hw->phy_type == e1000_phy_ife) + return e1000_phy_ife_get_info(hw, phy_info); + else + return e1000_phy_m88_get_info(hw, phy_info); +} + +s32 e1000_validate_mdi_setting(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_validate_mdi_settings"); + + if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) { + DEBUGOUT("Invalid MDI setting detected\n"); + hw->mdix = 1; + return -E1000_ERR_CONFIG; + } + return E1000_SUCCESS; +} + + +/****************************************************************************** + * Sets up eeprom variables in the hw struct. Must be called after mac_type + * is configured. Additionally, if this is ICH8, the flash controller GbE + * registers must be mapped, or this will crash. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_init_eeprom_params(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd = er32(EECD); + s32 ret_val = E1000_SUCCESS; + u16 eeprom_size; + + DEBUGFUNC("e1000_init_eeprom_params"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + eeprom->type = e1000_eeprom_microwire; + eeprom->word_size = 64; + eeprom->opcode_bits = 3; + eeprom->address_bits = 6; + eeprom->delay_usec = 50; + eeprom->use_eerd = false; + eeprom->use_eewr = false; + break; + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + eeprom->type = e1000_eeprom_microwire; + eeprom->opcode_bits = 3; + eeprom->delay_usec = 50; + if (eecd & E1000_EECD_SIZE) { + eeprom->word_size = 256; + eeprom->address_bits = 8; + } else { + eeprom->word_size = 64; + eeprom->address_bits = 6; + } + eeprom->use_eerd = false; + eeprom->use_eewr = false; + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (eecd & E1000_EECD_TYPE) { + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + } else { + eeprom->type = e1000_eeprom_microwire; + eeprom->opcode_bits = 3; + eeprom->delay_usec = 50; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->word_size = 256; + eeprom->address_bits = 8; + } else { + eeprom->word_size = 64; + eeprom->address_bits = 6; + } + } + eeprom->use_eerd = false; + eeprom->use_eewr = false; + break; + case e1000_82571: + case e1000_82572: + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + eeprom->use_eerd = false; + eeprom->use_eewr = false; + break; + case e1000_82573: + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + eeprom->use_eerd = true; + eeprom->use_eewr = true; + if (!e1000_is_onboard_nvm_eeprom(hw)) { + eeprom->type = e1000_eeprom_flash; + eeprom->word_size = 2048; + + /* Ensure that the Autonomous FLASH update bit is cleared due to + * Flash update issue on parts which use a FLASH for NVM. */ + eecd &= ~E1000_EECD_AUPDEN; + ew32(EECD, eecd); + } + break; + case e1000_80003es2lan: + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + eeprom->use_eerd = true; + eeprom->use_eewr = false; + break; + case e1000_ich8lan: + { + s32 i = 0; + u32 flash_size = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_GFPREG); + + eeprom->type = e1000_eeprom_ich8; + eeprom->use_eerd = false; + eeprom->use_eewr = false; + eeprom->word_size = E1000_SHADOW_RAM_WORDS; + + /* Zero the shadow RAM structure. But don't load it from NVM + * so as to save time for driver init */ + if (hw->eeprom_shadow_ram != NULL) { + for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { + hw->eeprom_shadow_ram[i].modified = false; + hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; + } + } + + hw->flash_base_addr = (flash_size & ICH_GFPREG_BASE_MASK) * + ICH_FLASH_SECTOR_SIZE; + + hw->flash_bank_size = ((flash_size >> 16) & ICH_GFPREG_BASE_MASK) + 1; + hw->flash_bank_size -= (flash_size & ICH_GFPREG_BASE_MASK); + + hw->flash_bank_size *= ICH_FLASH_SECTOR_SIZE; + + hw->flash_bank_size /= 2 * sizeof(u16); + + break; + } + default: + break; + } + + if (eeprom->type == e1000_eeprom_spi) { + /* eeprom_size will be an enum [0..8] that maps to eeprom sizes 128B to + * 32KB (incremented by powers of 2). + */ + if (hw->mac_type <= e1000_82547_rev_2) { + /* Set to default value for initial eeprom read. */ + eeprom->word_size = 64; + ret_val = e1000_read_eeprom(hw, EEPROM_CFG, 1, &eeprom_size); + if (ret_val) + return ret_val; + eeprom_size = (eeprom_size & EEPROM_SIZE_MASK) >> EEPROM_SIZE_SHIFT; + /* 256B eeprom size was not supported in earlier hardware, so we + * bump eeprom_size up one to ensure that "1" (which maps to 256B) + * is never the result used in the shifting logic below. */ + if (eeprom_size) + eeprom_size++; + } else { + eeprom_size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> + E1000_EECD_SIZE_EX_SHIFT); + } + + eeprom->word_size = 1 << (eeprom_size + EEPROM_WORD_SIZE_SHIFT); + } + return ret_val; +} + +/****************************************************************************** + * Raises the EEPROM's clock input. + * + * hw - Struct containing variables accessed by shared code + * eecd - EECD's current value + *****************************************************************************/ +static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd) +{ + /* Raise the clock input to the EEPROM (by setting the SK bit), and then + * wait microseconds. + */ + *eecd = *eecd | E1000_EECD_SK; + ew32(EECD, *eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); +} + +/****************************************************************************** + * Lowers the EEPROM's clock input. + * + * hw - Struct containing variables accessed by shared code + * eecd - EECD's current value + *****************************************************************************/ +static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd) +{ + /* Lower the clock input to the EEPROM (by clearing the SK bit), and then + * wait 50 microseconds. + */ + *eecd = *eecd & ~E1000_EECD_SK; + ew32(EECD, *eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); +} + +/****************************************************************************** + * Shift data bits out to the EEPROM. + * + * hw - Struct containing variables accessed by shared code + * data - data to send to the EEPROM + * count - number of bits to shift out + *****************************************************************************/ +static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, u16 count) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + u32 mask; + + /* We need to shift "count" bits out to the EEPROM. So, value in the + * "data" parameter will be shifted out to the EEPROM one bit at a time. + * In order to do this, "data" must be broken down into bits. + */ + mask = 0x01 << (count - 1); + eecd = er32(EECD); + if (eeprom->type == e1000_eeprom_microwire) { + eecd &= ~E1000_EECD_DO; + } else if (eeprom->type == e1000_eeprom_spi) { + eecd |= E1000_EECD_DO; + } + do { + /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1", + * and then raising and then lowering the clock (the SK bit controls + * the clock input to the EEPROM). A "0" is shifted out to the EEPROM + * by setting "DI" to "0" and then raising and then lowering the clock. + */ + eecd &= ~E1000_EECD_DI; + + if (data & mask) + eecd |= E1000_EECD_DI; + + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + + udelay(eeprom->delay_usec); + + e1000_raise_ee_clk(hw, &eecd); + e1000_lower_ee_clk(hw, &eecd); + + mask = mask >> 1; + + } while (mask); + + /* We leave the "DI" bit set to "0" when we leave this routine. */ + eecd &= ~E1000_EECD_DI; + ew32(EECD, eecd); +} + +/****************************************************************************** + * Shift data bits in from the EEPROM + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count) +{ + u32 eecd; + u32 i; + u16 data; + + /* In order to read a register from the EEPROM, we need to shift 'count' + * bits in from the EEPROM. Bits are "shifted in" by raising the clock + * input to the EEPROM (setting the SK bit), and then reading the value of + * the "DO" bit. During this "shifting in" process the "DI" bit should + * always be clear. + */ + + eecd = er32(EECD); + + eecd &= ~(E1000_EECD_DO | E1000_EECD_DI); + data = 0; + + for (i = 0; i < count; i++) { + data = data << 1; + e1000_raise_ee_clk(hw, &eecd); + + eecd = er32(EECD); + + eecd &= ~(E1000_EECD_DI); + if (eecd & E1000_EECD_DO) + data |= 1; + + e1000_lower_ee_clk(hw, &eecd); + } + + return data; +} + +/****************************************************************************** + * Prepares EEPROM for access + * + * hw - Struct containing variables accessed by shared code + * + * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This + * function should be called before issuing a command to the EEPROM. + *****************************************************************************/ +static s32 e1000_acquire_eeprom(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd, i=0; + + DEBUGFUNC("e1000_acquire_eeprom"); + + if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) + return -E1000_ERR_SWFW_SYNC; + eecd = er32(EECD); + + if (hw->mac_type != e1000_82573) { + /* Request EEPROM Access */ + if (hw->mac_type > e1000_82544) { + eecd |= E1000_EECD_REQ; + ew32(EECD, eecd); + eecd = er32(EECD); + while ((!(eecd & E1000_EECD_GNT)) && + (i < E1000_EEPROM_GRANT_ATTEMPTS)) { + i++; + udelay(5); + eecd = er32(EECD); + } + if (!(eecd & E1000_EECD_GNT)) { + eecd &= ~E1000_EECD_REQ; + ew32(EECD, eecd); + DEBUGOUT("Could not acquire EEPROM grant\n"); + e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); + return -E1000_ERR_EEPROM; + } + } + } + + /* Setup EEPROM for Read/Write */ + + if (eeprom->type == e1000_eeprom_microwire) { + /* Clear SK and DI */ + eecd &= ~(E1000_EECD_DI | E1000_EECD_SK); + ew32(EECD, eecd); + + /* Set CS */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + } else if (eeprom->type == e1000_eeprom_spi) { + /* Clear SK and CS */ + eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); + ew32(EECD, eecd); + udelay(1); + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Returns EEPROM to a "standby" state + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_standby_eeprom(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + + eecd = er32(EECD); + + if (eeprom->type == e1000_eeprom_microwire) { + eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Clock high */ + eecd |= E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Select EEPROM */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Clock low */ + eecd &= ~E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + } else if (eeprom->type == e1000_eeprom_spi) { + /* Toggle CS to flush commands */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + eecd &= ~E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + } +} + +/****************************************************************************** + * Terminates a command by inverting the EEPROM's chip select pin + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_release_eeprom(struct e1000_hw *hw) +{ + u32 eecd; + + DEBUGFUNC("e1000_release_eeprom"); + + eecd = er32(EECD); + + if (hw->eeprom.type == e1000_eeprom_spi) { + eecd |= E1000_EECD_CS; /* Pull CS high */ + eecd &= ~E1000_EECD_SK; /* Lower SCK */ + + ew32(EECD, eecd); + + udelay(hw->eeprom.delay_usec); + } else if (hw->eeprom.type == e1000_eeprom_microwire) { + /* cleanup eeprom */ + + /* CS on Microwire is active-high */ + eecd &= ~(E1000_EECD_CS | E1000_EECD_DI); + + ew32(EECD, eecd); + + /* Rising edge of clock */ + eecd |= E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); + + /* Falling edge of clock */ + eecd &= ~E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); + } + + /* Stop requesting EEPROM access */ + if (hw->mac_type > e1000_82544) { + eecd &= ~E1000_EECD_REQ; + ew32(EECD, eecd); + } + + e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); +} + +/****************************************************************************** + * Reads a 16 bit word from the EEPROM. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw) +{ + u16 retry_count = 0; + u8 spi_stat_reg; + + DEBUGFUNC("e1000_spi_eeprom_ready"); + + /* Read "Status Register" repeatedly until the LSB is cleared. The + * EEPROM will signal that the command has been completed by clearing + * bit 0 of the internal status register. If it's not cleared within + * 5 milliseconds, then error out. + */ + retry_count = 0; + do { + e1000_shift_out_ee_bits(hw, EEPROM_RDSR_OPCODE_SPI, + hw->eeprom.opcode_bits); + spi_stat_reg = (u8)e1000_shift_in_ee_bits(hw, 8); + if (!(spi_stat_reg & EEPROM_STATUS_RDY_SPI)) + break; + + udelay(5); + retry_count += 5; + + e1000_standby_eeprom(hw); + } while (retry_count < EEPROM_MAX_RETRY_SPI); + + /* ATMEL SPI write time could vary from 0-20mSec on 3.3V devices (and + * only 0-5mSec on 5V devices) + */ + if (retry_count >= EEPROM_MAX_RETRY_SPI) { + DEBUGOUT("SPI EEPROM Status error\n"); + return -E1000_ERR_EEPROM; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Reads a 16 bit word from the EEPROM. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +s32 e1000_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + s32 ret; + spin_lock(&e1000_eeprom_lock); + ret = e1000_do_read_eeprom(hw, offset, words, data); + spin_unlock(&e1000_eeprom_lock); + return ret; +} + +static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 i = 0; + + DEBUGFUNC("e1000_read_eeprom"); + + /* If eeprom is not yet detected, do so now */ + if (eeprom->word_size == 0) + e1000_init_eeprom_params(hw); + + /* A check for invalid values: offset too large, too many words, and not + * enough words. + */ + if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || + (words == 0)) { + DEBUGOUT2("\"words\" parameter out of bounds. Words = %d, size = %d\n", offset, eeprom->word_size); + return -E1000_ERR_EEPROM; + } + + /* EEPROM's that don't use EERD to read require us to bit-bang the SPI + * directly. In this case, we need to acquire the EEPROM so that + * FW or other port software does not interrupt. + */ + if (e1000_is_onboard_nvm_eeprom(hw) && !hw->eeprom.use_eerd) { + /* Prepare the EEPROM for bit-bang reading */ + if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + } + + /* Eerd register EEPROM access requires no eeprom aquire/release */ + if (eeprom->use_eerd) + return e1000_read_eeprom_eerd(hw, offset, words, data); + + /* ICH EEPROM access is done via the ICH flash controller */ + if (eeprom->type == e1000_eeprom_ich8) + return e1000_read_eeprom_ich8(hw, offset, words, data); + + /* Set up the SPI or Microwire EEPROM for bit-bang reading. We have + * acquired the EEPROM at this point, so any returns should relase it */ + if (eeprom->type == e1000_eeprom_spi) { + u16 word_in; + u8 read_opcode = EEPROM_READ_OPCODE_SPI; + + if (e1000_spi_eeprom_ready(hw)) { + e1000_release_eeprom(hw); + return -E1000_ERR_EEPROM; + } + + e1000_standby_eeprom(hw); + + /* Some SPI eeproms use the 8th address bit embedded in the opcode */ + if ((eeprom->address_bits == 8) && (offset >= 128)) + read_opcode |= EEPROM_A8_OPCODE_SPI; + + /* Send the READ command (opcode + addr) */ + e1000_shift_out_ee_bits(hw, read_opcode, eeprom->opcode_bits); + e1000_shift_out_ee_bits(hw, (u16)(offset*2), eeprom->address_bits); + + /* Read the data. The address of the eeprom internally increments with + * each byte (spi) being read, saving on the overhead of eeprom setup + * and tear-down. The address counter will roll over if reading beyond + * the size of the eeprom, thus allowing the entire memory to be read + * starting from any offset. */ + for (i = 0; i < words; i++) { + word_in = e1000_shift_in_ee_bits(hw, 16); + data[i] = (word_in >> 8) | (word_in << 8); + } + } else if (eeprom->type == e1000_eeprom_microwire) { + for (i = 0; i < words; i++) { + /* Send the READ command (opcode + addr) */ + e1000_shift_out_ee_bits(hw, EEPROM_READ_OPCODE_MICROWIRE, + eeprom->opcode_bits); + e1000_shift_out_ee_bits(hw, (u16)(offset + i), + eeprom->address_bits); + + /* Read the data. For microwire, each word requires the overhead + * of eeprom setup and tear-down. */ + data[i] = e1000_shift_in_ee_bits(hw, 16); + e1000_standby_eeprom(hw); + } + } + + /* End this read operation */ + e1000_release_eeprom(hw); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Reads a 16 bit word from the EEPROM using the EERD register. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +static s32 e1000_read_eeprom_eerd(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + u32 i, eerd = 0; + s32 error = 0; + + for (i = 0; i < words; i++) { + eerd = ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) + + E1000_EEPROM_RW_REG_START; + + ew32(EERD, eerd); + error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_READ); + + if (error) { + break; + } + data[i] = (er32(EERD) >> E1000_EEPROM_RW_REG_DATA); + + } + + return error; +} + +/****************************************************************************** + * Writes a 16 bit word from the EEPROM using the EEWR register. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +static s32 e1000_write_eeprom_eewr(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + u32 register_value = 0; + u32 i = 0; + s32 error = 0; + + if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) + return -E1000_ERR_SWFW_SYNC; + + for (i = 0; i < words; i++) { + register_value = (data[i] << E1000_EEPROM_RW_REG_DATA) | + ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) | + E1000_EEPROM_RW_REG_START; + + error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); + if (error) { + break; + } + + ew32(EEWR, register_value); + + error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); + + if (error) { + break; + } + } + + e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); + return error; +} + +/****************************************************************************** + * Polls the status bit (bit 1) of the EERD to determine when the read is done. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd) +{ + u32 attempts = 100000; + u32 i, reg = 0; + s32 done = E1000_ERR_EEPROM; + + for (i = 0; i < attempts; i++) { + if (eerd == E1000_EEPROM_POLL_READ) + reg = er32(EERD); + else + reg = er32(EEWR); + + if (reg & E1000_EEPROM_RW_REG_DONE) { + done = E1000_SUCCESS; + break; + } + udelay(5); + } + + return done; +} + +/*************************************************************************** +* Description: Determines if the onboard NVM is FLASH or EEPROM. +* +* hw - Struct containing variables accessed by shared code +****************************************************************************/ +static bool e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw) +{ + u32 eecd = 0; + + DEBUGFUNC("e1000_is_onboard_nvm_eeprom"); + + if (hw->mac_type == e1000_ich8lan) + return false; + + if (hw->mac_type == e1000_82573) { + eecd = er32(EECD); + + /* Isolate bits 15 & 16 */ + eecd = ((eecd >> 15) & 0x03); + + /* If both bits are set, device is Flash type */ + if (eecd == 0x03) { + return false; + } + } + return true; +} + +/****************************************************************************** + * Verifies that the EEPROM has a valid checksum + * + * hw - Struct containing variables accessed by shared code + * + * Reads the first 64 16 bit words of the EEPROM and sums the values read. + * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is + * valid. + *****************************************************************************/ +s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw) +{ + u16 checksum = 0; + u16 i, eeprom_data; + + DEBUGFUNC("e1000_validate_eeprom_checksum"); + + if ((hw->mac_type == e1000_82573) && !e1000_is_onboard_nvm_eeprom(hw)) { + /* Check bit 4 of word 10h. If it is 0, firmware is done updating + * 10h-12h. Checksum may need to be fixed. */ + e1000_read_eeprom(hw, 0x10, 1, &eeprom_data); + if ((eeprom_data & 0x10) == 0) { + /* Read 0x23 and check bit 15. This bit is a 1 when the checksum + * has already been fixed. If the checksum is still wrong and this + * bit is a 1, we need to return bad checksum. Otherwise, we need + * to set this bit to a 1 and update the checksum. */ + e1000_read_eeprom(hw, 0x23, 1, &eeprom_data); + if ((eeprom_data & 0x8000) == 0) { + eeprom_data |= 0x8000; + e1000_write_eeprom(hw, 0x23, 1, &eeprom_data); + e1000_update_eeprom_checksum(hw); + } + } + } + + if (hw->mac_type == e1000_ich8lan) { + /* Drivers must allocate the shadow ram structure for the + * EEPROM checksum to be updated. Otherwise, this bit as well + * as the checksum must both be set correctly for this + * validation to pass. + */ + e1000_read_eeprom(hw, 0x19, 1, &eeprom_data); + if ((eeprom_data & 0x40) == 0) { + eeprom_data |= 0x40; + e1000_write_eeprom(hw, 0x19, 1, &eeprom_data); + e1000_update_eeprom_checksum(hw); + } + } + + for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { + if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + checksum += eeprom_data; + } + + if (checksum == (u16)EEPROM_SUM) + return E1000_SUCCESS; + else { + DEBUGOUT("EEPROM Checksum Invalid\n"); + return -E1000_ERR_EEPROM; + } +} + +/****************************************************************************** + * Calculates the EEPROM checksum and writes it to the EEPROM + * + * hw - Struct containing variables accessed by shared code + * + * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA. + * Writes the difference to word offset 63 of the EEPROM. + *****************************************************************************/ +s32 e1000_update_eeprom_checksum(struct e1000_hw *hw) +{ + u32 ctrl_ext; + u16 checksum = 0; + u16 i, eeprom_data; + + DEBUGFUNC("e1000_update_eeprom_checksum"); + + for (i = 0; i < EEPROM_CHECKSUM_REG; i++) { + if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + checksum += eeprom_data; + } + checksum = (u16)EEPROM_SUM - checksum; + if (e1000_write_eeprom(hw, EEPROM_CHECKSUM_REG, 1, &checksum) < 0) { + DEBUGOUT("EEPROM Write Error\n"); + return -E1000_ERR_EEPROM; + } else if (hw->eeprom.type == e1000_eeprom_flash) { + e1000_commit_shadow_ram(hw); + } else if (hw->eeprom.type == e1000_eeprom_ich8) { + e1000_commit_shadow_ram(hw); + /* Reload the EEPROM, or else modifications will not appear + * until after next adapter reset. */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_EE_RST; + ew32(CTRL_EXT, ctrl_ext); + msleep(10); + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Parent function for writing words to the different EEPROM types. + * + * hw - Struct containing variables accessed by shared code + * offset - offset within the EEPROM to be written to + * words - number of words to write + * data - 16 bit word to be written to the EEPROM + * + * If e1000_update_eeprom_checksum is not called after this function, the + * EEPROM will most likely contain an invalid checksum. + *****************************************************************************/ +s32 e1000_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + s32 ret; + spin_lock(&e1000_eeprom_lock); + ret = e1000_do_write_eeprom(hw, offset, words, data); + spin_unlock(&e1000_eeprom_lock); + return ret; +} + + +static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + s32 status = 0; + + DEBUGFUNC("e1000_write_eeprom"); + + /* If eeprom is not yet detected, do so now */ + if (eeprom->word_size == 0) + e1000_init_eeprom_params(hw); + + /* A check for invalid values: offset too large, too many words, and not + * enough words. + */ + if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || + (words == 0)) { + DEBUGOUT("\"words\" parameter out of bounds\n"); + return -E1000_ERR_EEPROM; + } + + /* 82573 writes only through eewr */ + if (eeprom->use_eewr) + return e1000_write_eeprom_eewr(hw, offset, words, data); + + if (eeprom->type == e1000_eeprom_ich8) + return e1000_write_eeprom_ich8(hw, offset, words, data); + + /* Prepare the EEPROM for writing */ + if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + + if (eeprom->type == e1000_eeprom_microwire) { + status = e1000_write_eeprom_microwire(hw, offset, words, data); + } else { + status = e1000_write_eeprom_spi(hw, offset, words, data); + msleep(10); + } + + /* Done with writing */ + e1000_release_eeprom(hw); + + return status; +} + +/****************************************************************************** + * Writes a 16 bit word to a given offset in an SPI EEPROM. + * + * hw - Struct containing variables accessed by shared code + * offset - offset within the EEPROM to be written to + * words - number of words to write + * data - pointer to array of 8 bit words to be written to the EEPROM + * + *****************************************************************************/ +static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u16 widx = 0; + + DEBUGFUNC("e1000_write_eeprom_spi"); + + while (widx < words) { + u8 write_opcode = EEPROM_WRITE_OPCODE_SPI; + + if (e1000_spi_eeprom_ready(hw)) return -E1000_ERR_EEPROM; + + e1000_standby_eeprom(hw); + + /* Send the WRITE ENABLE command (8 bit opcode ) */ + e1000_shift_out_ee_bits(hw, EEPROM_WREN_OPCODE_SPI, + eeprom->opcode_bits); + + e1000_standby_eeprom(hw); + + /* Some SPI eeproms use the 8th address bit embedded in the opcode */ + if ((eeprom->address_bits == 8) && (offset >= 128)) + write_opcode |= EEPROM_A8_OPCODE_SPI; + + /* Send the Write command (8-bit opcode + addr) */ + e1000_shift_out_ee_bits(hw, write_opcode, eeprom->opcode_bits); + + e1000_shift_out_ee_bits(hw, (u16)((offset + widx)*2), + eeprom->address_bits); + + /* Send the data */ + + /* Loop to allow for up to whole page write (32 bytes) of eeprom */ + while (widx < words) { + u16 word_out = data[widx]; + word_out = (word_out >> 8) | (word_out << 8); + e1000_shift_out_ee_bits(hw, word_out, 16); + widx++; + + /* Some larger eeprom sizes are capable of a 32-byte PAGE WRITE + * operation, while the smaller eeproms are capable of an 8-byte + * PAGE WRITE operation. Break the inner loop to pass new address + */ + if ((((offset + widx)*2) % eeprom->page_size) == 0) { + e1000_standby_eeprom(hw); + break; + } + } + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Writes a 16 bit word to a given offset in a Microwire EEPROM. + * + * hw - Struct containing variables accessed by shared code + * offset - offset within the EEPROM to be written to + * words - number of words to write + * data - pointer to array of 16 bit words to be written to the EEPROM + * + *****************************************************************************/ +static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + u16 words_written = 0; + u16 i = 0; + + DEBUGFUNC("e1000_write_eeprom_microwire"); + + /* Send the write enable command to the EEPROM (3-bit opcode plus + * 6/8-bit dummy address beginning with 11). It's less work to include + * the 11 of the dummy address as part of the opcode than it is to shift + * it over the correct number of bits for the address. This puts the + * EEPROM into write/erase mode. + */ + e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE_MICROWIRE, + (u16)(eeprom->opcode_bits + 2)); + + e1000_shift_out_ee_bits(hw, 0, (u16)(eeprom->address_bits - 2)); + + /* Prepare the EEPROM */ + e1000_standby_eeprom(hw); + + while (words_written < words) { + /* Send the Write command (3-bit opcode + addr) */ + e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE_MICROWIRE, + eeprom->opcode_bits); + + e1000_shift_out_ee_bits(hw, (u16)(offset + words_written), + eeprom->address_bits); + + /* Send the data */ + e1000_shift_out_ee_bits(hw, data[words_written], 16); + + /* Toggle the CS line. This in effect tells the EEPROM to execute + * the previous command. + */ + e1000_standby_eeprom(hw); + + /* Read DO repeatedly until it is high (equal to '1'). The EEPROM will + * signal that the command has been completed by raising the DO signal. + * If DO does not go high in 10 milliseconds, then error out. + */ + for (i = 0; i < 200; i++) { + eecd = er32(EECD); + if (eecd & E1000_EECD_DO) break; + udelay(50); + } + if (i == 200) { + DEBUGOUT("EEPROM Write did not complete\n"); + return -E1000_ERR_EEPROM; + } + + /* Recover from write */ + e1000_standby_eeprom(hw); + + words_written++; + } + + /* Send the write disable command to the EEPROM (3-bit opcode plus + * 6/8-bit dummy address beginning with 10). It's less work to include + * the 10 of the dummy address as part of the opcode than it is to shift + * it over the correct number of bits for the address. This takes the + * EEPROM out of write/erase mode. + */ + e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE_MICROWIRE, + (u16)(eeprom->opcode_bits + 2)); + + e1000_shift_out_ee_bits(hw, 0, (u16)(eeprom->address_bits - 2)); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Flushes the cached eeprom to NVM. This is done by saving the modified values + * in the eeprom cache and the non modified values in the currently active bank + * to the new bank. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +static s32 e1000_commit_shadow_ram(struct e1000_hw *hw) +{ + u32 attempts = 100000; + u32 eecd = 0; + u32 flop = 0; + u32 i = 0; + s32 error = E1000_SUCCESS; + u32 old_bank_offset = 0; + u32 new_bank_offset = 0; + u8 low_byte = 0; + u8 high_byte = 0; + bool sector_write_failed = false; + + if (hw->mac_type == e1000_82573) { + /* The flop register will be used to determine if flash type is STM */ + flop = er32(FLOP); + for (i=0; i < attempts; i++) { + eecd = er32(EECD); + if ((eecd & E1000_EECD_FLUPD) == 0) { + break; + } + udelay(5); + } + + if (i == attempts) { + return -E1000_ERR_EEPROM; + } + + /* If STM opcode located in bits 15:8 of flop, reset firmware */ + if ((flop & 0xFF00) == E1000_STM_OPCODE) { + ew32(HICR, E1000_HICR_FW_RESET); + } + + /* Perform the flash update */ + ew32(EECD, eecd | E1000_EECD_FLUPD); + + for (i=0; i < attempts; i++) { + eecd = er32(EECD); + if ((eecd & E1000_EECD_FLUPD) == 0) { + break; + } + udelay(5); + } + + if (i == attempts) { + return -E1000_ERR_EEPROM; + } + } + + if (hw->mac_type == e1000_ich8lan && hw->eeprom_shadow_ram != NULL) { + /* We're writing to the opposite bank so if we're on bank 1, + * write to bank 0 etc. We also need to erase the segment that + * is going to be written */ + if (!(er32(EECD) & E1000_EECD_SEC1VAL)) { + new_bank_offset = hw->flash_bank_size * 2; + old_bank_offset = 0; + e1000_erase_ich8_4k_segment(hw, 1); + } else { + old_bank_offset = hw->flash_bank_size * 2; + new_bank_offset = 0; + e1000_erase_ich8_4k_segment(hw, 0); + } + + sector_write_failed = false; + /* Loop for every byte in the shadow RAM, + * which is in units of words. */ + for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { + /* Determine whether to write the value stored + * in the other NVM bank or a modified value stored + * in the shadow RAM */ + if (hw->eeprom_shadow_ram[i].modified) { + low_byte = (u8)hw->eeprom_shadow_ram[i].eeprom_word; + udelay(100); + error = e1000_verify_write_ich8_byte(hw, + (i << 1) + new_bank_offset, low_byte); + + if (error != E1000_SUCCESS) + sector_write_failed = true; + else { + high_byte = + (u8)(hw->eeprom_shadow_ram[i].eeprom_word >> 8); + udelay(100); + } + } else { + e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset, + &low_byte); + udelay(100); + error = e1000_verify_write_ich8_byte(hw, + (i << 1) + new_bank_offset, low_byte); + + if (error != E1000_SUCCESS) + sector_write_failed = true; + else { + e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset + 1, + &high_byte); + udelay(100); + } + } + + /* If the write of the low byte was successful, go ahead and + * write the high byte while checking to make sure that if it + * is the signature byte, then it is handled properly */ + if (!sector_write_failed) { + /* If the word is 0x13, then make sure the signature bits + * (15:14) are 11b until the commit has completed. + * This will allow us to write 10b which indicates the + * signature is valid. We want to do this after the write + * has completed so that we don't mark the segment valid + * while the write is still in progress */ + if (i == E1000_ICH_NVM_SIG_WORD) + high_byte = E1000_ICH_NVM_SIG_MASK | high_byte; + + error = e1000_verify_write_ich8_byte(hw, + (i << 1) + new_bank_offset + 1, high_byte); + if (error != E1000_SUCCESS) + sector_write_failed = true; + + } else { + /* If the write failed then break from the loop and + * return an error */ + break; + } + } + + /* Don't bother writing the segment valid bits if sector + * programming failed. */ + if (!sector_write_failed) { + /* Finally validate the new segment by setting bit 15:14 + * to 10b in word 0x13 , this can be done without an + * erase as well since these bits are 11 to start with + * and we need to change bit 14 to 0b */ + e1000_read_ich8_byte(hw, + E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, + &high_byte); + high_byte &= 0xBF; + error = e1000_verify_write_ich8_byte(hw, + E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, high_byte); + /* And invalidate the previously valid segment by setting + * its signature word (0x13) high_byte to 0b. This can be + * done without an erase because flash erase sets all bits + * to 1's. We can write 1's to 0's without an erase */ + if (error == E1000_SUCCESS) { + error = e1000_verify_write_ich8_byte(hw, + E1000_ICH_NVM_SIG_WORD * 2 + 1 + old_bank_offset, 0); + } + + /* Clear the now not used entry in the cache */ + for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { + hw->eeprom_shadow_ram[i].modified = false; + hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; + } + } + } + + return error; +} + +/****************************************************************************** + * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the + * second function of dual function devices + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_read_mac_addr(struct e1000_hw *hw) +{ + u16 offset; + u16 eeprom_data, i; + + DEBUGFUNC("e1000_read_mac_addr"); + + for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) { + offset = i >> 1; + if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + hw->perm_mac_addr[i] = (u8)(eeprom_data & 0x00FF); + hw->perm_mac_addr[i+1] = (u8)(eeprom_data >> 8); + } + + switch (hw->mac_type) { + default: + break; + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82571: + case e1000_80003es2lan: + if (er32(STATUS) & E1000_STATUS_FUNC_1) + hw->perm_mac_addr[5] ^= 0x01; + break; + } + + for (i = 0; i < NODE_ADDRESS_SIZE; i++) + hw->mac_addr[i] = hw->perm_mac_addr[i]; + return E1000_SUCCESS; +} + +/****************************************************************************** + * Initializes receive address filters. + * + * hw - Struct containing variables accessed by shared code + * + * Places the MAC address in receive address register 0 and clears the rest + * of the receive addresss registers. Clears the multicast table. Assumes + * the receiver is in reset when the routine is called. + *****************************************************************************/ +static void e1000_init_rx_addrs(struct e1000_hw *hw) +{ + u32 i; + u32 rar_num; + + DEBUGFUNC("e1000_init_rx_addrs"); + + /* Setup the receive address. */ + DEBUGOUT("Programming MAC Address into RAR[0]\n"); + + e1000_rar_set(hw, hw->mac_addr, 0); + + rar_num = E1000_RAR_ENTRIES; + + /* Reserve a spot for the Locally Administered Address to work around + * an 82571 issue in which a reset on one port will reload the MAC on + * the other port. */ + if ((hw->mac_type == e1000_82571) && (hw->laa_is_present)) + rar_num -= 1; + if (hw->mac_type == e1000_ich8lan) + rar_num = E1000_RAR_ENTRIES_ICH8LAN; + + /* Zero out the other 15 receive addresses. */ + DEBUGOUT("Clearing RAR[1-15]\n"); + for (i = 1; i < rar_num; i++) { + E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0); + E1000_WRITE_FLUSH(); + } +} + +/****************************************************************************** + * Hashes an address to determine its location in the multicast table + * + * hw - Struct containing variables accessed by shared code + * mc_addr - the multicast address to hash + *****************************************************************************/ +u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr) +{ + u32 hash_value = 0; + + /* The portion of the address that is used for the hash table is + * determined by the mc_filter_type setting. + */ + switch (hw->mc_filter_type) { + /* [0] [1] [2] [3] [4] [5] + * 01 AA 00 12 34 56 + * LSB MSB + */ + case 0: + if (hw->mac_type == e1000_ich8lan) { + /* [47:38] i.e. 0x158 for above example address */ + hash_value = ((mc_addr[4] >> 6) | (((u16)mc_addr[5]) << 2)); + } else { + /* [47:36] i.e. 0x563 for above example address */ + hash_value = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4)); + } + break; + case 1: + if (hw->mac_type == e1000_ich8lan) { + /* [46:37] i.e. 0x2B1 for above example address */ + hash_value = ((mc_addr[4] >> 5) | (((u16)mc_addr[5]) << 3)); + } else { + /* [46:35] i.e. 0xAC6 for above example address */ + hash_value = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5)); + } + break; + case 2: + if (hw->mac_type == e1000_ich8lan) { + /*[45:36] i.e. 0x163 for above example address */ + hash_value = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4)); + } else { + /* [45:34] i.e. 0x5D8 for above example address */ + hash_value = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6)); + } + break; + case 3: + if (hw->mac_type == e1000_ich8lan) { + /* [43:34] i.e. 0x18D for above example address */ + hash_value = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6)); + } else { + /* [43:32] i.e. 0x634 for above example address */ + hash_value = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8)); + } + break; + } + + hash_value &= 0xFFF; + if (hw->mac_type == e1000_ich8lan) + hash_value &= 0x3FF; + + return hash_value; +} + +/****************************************************************************** + * Sets the bit in the multicast table corresponding to the hash value. + * + * hw - Struct containing variables accessed by shared code + * hash_value - Multicast address hash value + *****************************************************************************/ +void e1000_mta_set(struct e1000_hw *hw, u32 hash_value) +{ + u32 hash_bit, hash_reg; + u32 mta; + u32 temp; + + /* The MTA is a register array of 128 32-bit registers. + * It is treated like an array of 4096 bits. We want to set + * bit BitArray[hash_value]. So we figure out what register + * the bit is in, read it, OR in the new bit, then write + * back the new value. The register is determined by the + * upper 7 bits of the hash value and the bit within that + * register are determined by the lower 5 bits of the value. + */ + hash_reg = (hash_value >> 5) & 0x7F; + if (hw->mac_type == e1000_ich8lan) + hash_reg &= 0x1F; + + hash_bit = hash_value & 0x1F; + + mta = E1000_READ_REG_ARRAY(hw, MTA, hash_reg); + + mta |= (1 << hash_bit); + + /* If we are on an 82544 and we are trying to write an odd offset + * in the MTA, save off the previous entry before writing and + * restore the old value after writing. + */ + if ((hw->mac_type == e1000_82544) && ((hash_reg & 0x1) == 1)) { + temp = E1000_READ_REG_ARRAY(hw, MTA, (hash_reg - 1)); + E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, MTA, (hash_reg - 1), temp); + E1000_WRITE_FLUSH(); + } else { + E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); + E1000_WRITE_FLUSH(); + } +} + +/****************************************************************************** + * Puts an ethernet address into a receive address register. + * + * hw - Struct containing variables accessed by shared code + * addr - Address to put into receive address register + * index - Receive address register to write + *****************************************************************************/ +void e1000_rar_set(struct e1000_hw *hw, u8 *addr, u32 index) +{ + u32 rar_low, rar_high; + + /* HW expects these in little endian so we reverse the byte order + * from network order (big endian) to little endian + */ + rar_low = ((u32)addr[0] | ((u32)addr[1] << 8) | + ((u32)addr[2] << 16) | ((u32)addr[3] << 24)); + rar_high = ((u32)addr[4] | ((u32)addr[5] << 8)); + + /* Disable Rx and flush all Rx frames before enabling RSS to avoid Rx + * unit hang. + * + * Description: + * If there are any Rx frames queued up or otherwise present in the HW + * before RSS is enabled, and then we enable RSS, the HW Rx unit will + * hang. To work around this issue, we have to disable receives and + * flush out all Rx frames before we enable RSS. To do so, we modify we + * redirect all Rx traffic to manageability and then reset the HW. + * This flushes away Rx frames, and (since the redirections to + * manageability persists across resets) keeps new ones from coming in + * while we work. Then, we clear the Address Valid AV bit for all MAC + * addresses and undo the re-direction to manageability. + * Now, frames are coming in again, but the MAC won't accept them, so + * far so good. We now proceed to initialize RSS (if necessary) and + * configure the Rx unit. Last, we re-enable the AV bits and continue + * on our merry way. + */ + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + if (hw->leave_av_bit_off) + break; + default: + /* Indicate to hardware the Address is Valid. */ + rar_high |= E1000_RAH_AV; + break; + } + + E1000_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high); + E1000_WRITE_FLUSH(); +} + +/****************************************************************************** + * Writes a value to the specified offset in the VLAN filter table. + * + * hw - Struct containing variables accessed by shared code + * offset - Offset in VLAN filer table to write + * value - Value to write into VLAN filter table + *****************************************************************************/ +void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value) +{ + u32 temp; + + if (hw->mac_type == e1000_ich8lan) + return; + + if ((hw->mac_type == e1000_82544) && ((offset & 0x1) == 1)) { + temp = E1000_READ_REG_ARRAY(hw, VFTA, (offset - 1)); + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, VFTA, (offset - 1), temp); + E1000_WRITE_FLUSH(); + } else { + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); + E1000_WRITE_FLUSH(); + } +} + +/****************************************************************************** + * Clears the VLAN filer table + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_clear_vfta(struct e1000_hw *hw) +{ + u32 offset; + u32 vfta_value = 0; + u32 vfta_offset = 0; + u32 vfta_bit_in_reg = 0; + + if (hw->mac_type == e1000_ich8lan) + return; + + if (hw->mac_type == e1000_82573) { + if (hw->mng_cookie.vlan_id != 0) { + /* The VFTA is a 4096b bit-field, each identifying a single VLAN + * ID. The following operations determine which 32b entry + * (i.e. offset) into the array we want to set the VLAN ID + * (i.e. bit) of the manageability unit. */ + vfta_offset = (hw->mng_cookie.vlan_id >> + E1000_VFTA_ENTRY_SHIFT) & + E1000_VFTA_ENTRY_MASK; + vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id & + E1000_VFTA_ENTRY_BIT_SHIFT_MASK); + } + } + for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { + /* If the offset we want to clear is the same offset of the + * manageability VLAN ID, then clear all bits except that of the + * manageability unit */ + vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0; + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, vfta_value); + E1000_WRITE_FLUSH(); + } +} + +static s32 e1000_id_led_init(struct e1000_hw *hw) +{ + u32 ledctl; + const u32 ledctl_mask = 0x000000FF; + const u32 ledctl_on = E1000_LEDCTL_MODE_LED_ON; + const u32 ledctl_off = E1000_LEDCTL_MODE_LED_OFF; + u16 eeprom_data, i, temp; + const u16 led_mask = 0x0F; + + DEBUGFUNC("e1000_id_led_init"); + + if (hw->mac_type < e1000_82540) { + /* Nothing to do */ + return E1000_SUCCESS; + } + + ledctl = er32(LEDCTL); + hw->ledctl_default = ledctl; + hw->ledctl_mode1 = hw->ledctl_default; + hw->ledctl_mode2 = hw->ledctl_default; + + if (e1000_read_eeprom(hw, EEPROM_ID_LED_SETTINGS, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + + if ((hw->mac_type == e1000_82573) && + (eeprom_data == ID_LED_RESERVED_82573)) + eeprom_data = ID_LED_DEFAULT_82573; + else if ((eeprom_data == ID_LED_RESERVED_0000) || + (eeprom_data == ID_LED_RESERVED_FFFF)) { + if (hw->mac_type == e1000_ich8lan) + eeprom_data = ID_LED_DEFAULT_ICH8LAN; + else + eeprom_data = ID_LED_DEFAULT; + } + + for (i = 0; i < 4; i++) { + temp = (eeprom_data >> (i << 2)) & led_mask; + switch (temp) { + case ID_LED_ON1_DEF2: + case ID_LED_ON1_ON2: + case ID_LED_ON1_OFF2: + hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode1 |= ledctl_on << (i << 3); + break; + case ID_LED_OFF1_DEF2: + case ID_LED_OFF1_ON2: + case ID_LED_OFF1_OFF2: + hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode1 |= ledctl_off << (i << 3); + break; + default: + /* Do nothing */ + break; + } + switch (temp) { + case ID_LED_DEF1_ON2: + case ID_LED_ON1_ON2: + case ID_LED_OFF1_ON2: + hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode2 |= ledctl_on << (i << 3); + break; + case ID_LED_DEF1_OFF2: + case ID_LED_ON1_OFF2: + case ID_LED_OFF1_OFF2: + hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode2 |= ledctl_off << (i << 3); + break; + default: + /* Do nothing */ + break; + } + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Prepares SW controlable LED for use and saves the current state of the LED. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_setup_led(struct e1000_hw *hw) +{ + u32 ledctl; + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_setup_led"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* No setup necessary */ + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + /* Turn off PHY Smart Power Down (if enabled) */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, + &hw->phy_spd_default); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + (u16)(hw->phy_spd_default & + ~IGP01E1000_GMII_SPD)); + if (ret_val) + return ret_val; + /* Fall Through */ + default: + if (hw->media_type == e1000_media_type_fiber) { + ledctl = er32(LEDCTL); + /* Save current LEDCTL settings */ + hw->ledctl_default = ledctl; + /* Turn off LED0 */ + ledctl &= ~(E1000_LEDCTL_LED0_IVRT | + E1000_LEDCTL_LED0_BLINK | + E1000_LEDCTL_LED0_MODE_MASK); + ledctl |= (E1000_LEDCTL_MODE_LED_OFF << + E1000_LEDCTL_LED0_MODE_SHIFT); + ew32(LEDCTL, ledctl); + } else if (hw->media_type == e1000_media_type_copper) + ew32(LEDCTL, hw->ledctl_mode1); + break; + } + + return E1000_SUCCESS; +} + + +/****************************************************************************** + * Used on 82571 and later Si that has LED blink bits. + * Callers must use their own timer and should have already called + * e1000_id_led_init() + * Call e1000_cleanup led() to stop blinking + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_blink_led_start(struct e1000_hw *hw) +{ + s16 i; + u32 ledctl_blink = 0; + + DEBUGFUNC("e1000_id_led_blink_on"); + + if (hw->mac_type < e1000_82571) { + /* Nothing to do */ + return E1000_SUCCESS; + } + if (hw->media_type == e1000_media_type_fiber) { + /* always blink LED0 for PCI-E fiber */ + ledctl_blink = E1000_LEDCTL_LED0_BLINK | + (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT); + } else { + /* set the blink bit for each LED that's "on" (0x0E) in ledctl_mode2 */ + ledctl_blink = hw->ledctl_mode2; + for (i=0; i < 4; i++) + if (((hw->ledctl_mode2 >> (i * 8)) & 0xFF) == + E1000_LEDCTL_MODE_LED_ON) + ledctl_blink |= (E1000_LEDCTL_LED0_BLINK << (i * 8)); + } + + ew32(LEDCTL, ledctl_blink); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Restores the saved state of the SW controlable LED. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_cleanup_led(struct e1000_hw *hw) +{ + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_cleanup_led"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* No cleanup necessary */ + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + /* Turn on PHY Smart Power Down (if previously enabled) */ + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + hw->phy_spd_default); + if (ret_val) + return ret_val; + /* Fall Through */ + default: + if (hw->phy_type == e1000_phy_ife) { + e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0); + break; + } + /* Restore LEDCTL settings */ + ew32(LEDCTL, hw->ledctl_default); + break; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Turns on the software controllable LED + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_led_on(struct e1000_hw *hw) +{ + u32 ctrl = er32(CTRL); + + DEBUGFUNC("e1000_led_on"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + /* Set SW Defineable Pin 0 to turn on the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + break; + case e1000_82544: + if (hw->media_type == e1000_media_type_fiber) { + /* Set SW Defineable Pin 0 to turn on the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else { + /* Clear SW Defineable Pin 0 to turn on the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } + break; + default: + if (hw->media_type == e1000_media_type_fiber) { + /* Clear SW Defineable Pin 0 to turn on the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else if (hw->phy_type == e1000_phy_ife) { + e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, + (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON)); + } else if (hw->media_type == e1000_media_type_copper) { + ew32(LEDCTL, hw->ledctl_mode2); + return E1000_SUCCESS; + } + break; + } + + ew32(CTRL, ctrl); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Turns off the software controllable LED + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +s32 e1000_led_off(struct e1000_hw *hw) +{ + u32 ctrl = er32(CTRL); + + DEBUGFUNC("e1000_led_off"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + /* Clear SW Defineable Pin 0 to turn off the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + break; + case e1000_82544: + if (hw->media_type == e1000_media_type_fiber) { + /* Clear SW Defineable Pin 0 to turn off the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else { + /* Set SW Defineable Pin 0 to turn off the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } + break; + default: + if (hw->media_type == e1000_media_type_fiber) { + /* Set SW Defineable Pin 0 to turn off the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else if (hw->phy_type == e1000_phy_ife) { + e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, + (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF)); + } else if (hw->media_type == e1000_media_type_copper) { + ew32(LEDCTL, hw->ledctl_mode1); + return E1000_SUCCESS; + } + break; + } + + ew32(CTRL, ctrl); + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Clears all hardware statistics counters. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static void e1000_clear_hw_cntrs(struct e1000_hw *hw) +{ + volatile u32 temp; + + temp = er32(CRCERRS); + temp = er32(SYMERRS); + temp = er32(MPC); + temp = er32(SCC); + temp = er32(ECOL); + temp = er32(MCC); + temp = er32(LATECOL); + temp = er32(COLC); + temp = er32(DC); + temp = er32(SEC); + temp = er32(RLEC); + temp = er32(XONRXC); + temp = er32(XONTXC); + temp = er32(XOFFRXC); + temp = er32(XOFFTXC); + temp = er32(FCRUC); + + if (hw->mac_type != e1000_ich8lan) { + temp = er32(PRC64); + temp = er32(PRC127); + temp = er32(PRC255); + temp = er32(PRC511); + temp = er32(PRC1023); + temp = er32(PRC1522); + } + + temp = er32(GPRC); + temp = er32(BPRC); + temp = er32(MPRC); + temp = er32(GPTC); + temp = er32(GORCL); + temp = er32(GORCH); + temp = er32(GOTCL); + temp = er32(GOTCH); + temp = er32(RNBC); + temp = er32(RUC); + temp = er32(RFC); + temp = er32(ROC); + temp = er32(RJC); + temp = er32(TORL); + temp = er32(TORH); + temp = er32(TOTL); + temp = er32(TOTH); + temp = er32(TPR); + temp = er32(TPT); + + if (hw->mac_type != e1000_ich8lan) { + temp = er32(PTC64); + temp = er32(PTC127); + temp = er32(PTC255); + temp = er32(PTC511); + temp = er32(PTC1023); + temp = er32(PTC1522); + } + + temp = er32(MPTC); + temp = er32(BPTC); + + if (hw->mac_type < e1000_82543) return; + + temp = er32(ALGNERRC); + temp = er32(RXERRC); + temp = er32(TNCRS); + temp = er32(CEXTERR); + temp = er32(TSCTC); + temp = er32(TSCTFC); + + if (hw->mac_type <= e1000_82544) return; + + temp = er32(MGTPRC); + temp = er32(MGTPDC); + temp = er32(MGTPTC); + + if (hw->mac_type <= e1000_82547_rev_2) return; + + temp = er32(IAC); + temp = er32(ICRXOC); + + if (hw->mac_type == e1000_ich8lan) return; + + temp = er32(ICRXPTC); + temp = er32(ICRXATC); + temp = er32(ICTXPTC); + temp = er32(ICTXATC); + temp = er32(ICTXQEC); + temp = er32(ICTXQMTC); + temp = er32(ICRXDMTC); +} + +/****************************************************************************** + * Resets Adaptive IFS to its default state. + * + * hw - Struct containing variables accessed by shared code + * + * Call this after e1000_init_hw. You may override the IFS defaults by setting + * hw->ifs_params_forced to true. However, you must initialize hw-> + * current_ifs_val, ifs_min_val, ifs_max_val, ifs_step_size, and ifs_ratio + * before calling this function. + *****************************************************************************/ +void e1000_reset_adaptive(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_reset_adaptive"); + + if (hw->adaptive_ifs) { + if (!hw->ifs_params_forced) { + hw->current_ifs_val = 0; + hw->ifs_min_val = IFS_MIN; + hw->ifs_max_val = IFS_MAX; + hw->ifs_step_size = IFS_STEP; + hw->ifs_ratio = IFS_RATIO; + } + hw->in_ifs_mode = false; + ew32(AIT, 0); + } else { + DEBUGOUT("Not in Adaptive IFS mode!\n"); + } +} + +/****************************************************************************** + * Called during the callback/watchdog routine to update IFS value based on + * the ratio of transmits to collisions. + * + * hw - Struct containing variables accessed by shared code + * tx_packets - Number of transmits since last callback + * total_collisions - Number of collisions since last callback + *****************************************************************************/ +void e1000_update_adaptive(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_update_adaptive"); + + if (hw->adaptive_ifs) { + if ((hw->collision_delta * hw->ifs_ratio) > hw->tx_packet_delta) { + if (hw->tx_packet_delta > MIN_NUM_XMITS) { + hw->in_ifs_mode = true; + if (hw->current_ifs_val < hw->ifs_max_val) { + if (hw->current_ifs_val == 0) + hw->current_ifs_val = hw->ifs_min_val; + else + hw->current_ifs_val += hw->ifs_step_size; + ew32(AIT, hw->current_ifs_val); + } + } + } else { + if (hw->in_ifs_mode && (hw->tx_packet_delta <= MIN_NUM_XMITS)) { + hw->current_ifs_val = 0; + hw->in_ifs_mode = false; + ew32(AIT, 0); + } + } + } else { + DEBUGOUT("Not in Adaptive IFS mode!\n"); + } +} + +/****************************************************************************** + * Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT + * + * hw - Struct containing variables accessed by shared code + * frame_len - The length of the frame in question + * mac_addr - The Ethernet destination address of the frame in question + *****************************************************************************/ +void e1000_tbi_adjust_stats(struct e1000_hw *hw, struct e1000_hw_stats *stats, + u32 frame_len, u8 *mac_addr) +{ + u64 carry_bit; + + /* First adjust the frame length. */ + frame_len--; + /* We need to adjust the statistics counters, since the hardware + * counters overcount this packet as a CRC error and undercount + * the packet as a good packet + */ + /* This packet should not be counted as a CRC error. */ + stats->crcerrs--; + /* This packet does count as a Good Packet Received. */ + stats->gprc++; + + /* Adjust the Good Octets received counters */ + carry_bit = 0x80000000 & stats->gorcl; + stats->gorcl += frame_len; + /* If the high bit of Gorcl (the low 32 bits of the Good Octets + * Received Count) was one before the addition, + * AND it is zero after, then we lost the carry out, + * need to add one to Gorch (Good Octets Received Count High). + * This could be simplified if all environments supported + * 64-bit integers. + */ + if (carry_bit && ((stats->gorcl & 0x80000000) == 0)) + stats->gorch++; + /* Is this a broadcast or multicast? Check broadcast first, + * since the test for a multicast frame will test positive on + * a broadcast frame. + */ + if ((mac_addr[0] == (u8)0xff) && (mac_addr[1] == (u8)0xff)) + /* Broadcast packet */ + stats->bprc++; + else if (*mac_addr & 0x01) + /* Multicast packet */ + stats->mprc++; + + if (frame_len == hw->max_frame_size) { + /* In this case, the hardware has overcounted the number of + * oversize frames. + */ + if (stats->roc > 0) + stats->roc--; + } + + /* Adjust the bin counters when the extra byte put the frame in the + * wrong bin. Remember that the frame_len was adjusted above. + */ + if (frame_len == 64) { + stats->prc64++; + stats->prc127--; + } else if (frame_len == 127) { + stats->prc127++; + stats->prc255--; + } else if (frame_len == 255) { + stats->prc255++; + stats->prc511--; + } else if (frame_len == 511) { + stats->prc511++; + stats->prc1023--; + } else if (frame_len == 1023) { + stats->prc1023++; + stats->prc1522--; + } else if (frame_len == 1522) { + stats->prc1522++; + } +} + +/****************************************************************************** + * Gets the current PCI bus type, speed, and width of the hardware + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +void e1000_get_bus_info(struct e1000_hw *hw) +{ + s32 ret_val; + u16 pci_ex_link_status; + u32 status; + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + hw->bus_type = e1000_bus_type_pci; + hw->bus_speed = e1000_bus_speed_unknown; + hw->bus_width = e1000_bus_width_unknown; + break; + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + hw->bus_type = e1000_bus_type_pci_express; + hw->bus_speed = e1000_bus_speed_2500; + ret_val = e1000_read_pcie_cap_reg(hw, + PCI_EX_LINK_STATUS, + &pci_ex_link_status); + if (ret_val) + hw->bus_width = e1000_bus_width_unknown; + else + hw->bus_width = (pci_ex_link_status & PCI_EX_LINK_WIDTH_MASK) >> + PCI_EX_LINK_WIDTH_SHIFT; + break; + case e1000_ich8lan: + hw->bus_type = e1000_bus_type_pci_express; + hw->bus_speed = e1000_bus_speed_2500; + hw->bus_width = e1000_bus_width_pciex_1; + break; + default: + status = er32(STATUS); + hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ? + e1000_bus_type_pcix : e1000_bus_type_pci; + + if (hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) { + hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ? + e1000_bus_speed_66 : e1000_bus_speed_120; + } else if (hw->bus_type == e1000_bus_type_pci) { + hw->bus_speed = (status & E1000_STATUS_PCI66) ? + e1000_bus_speed_66 : e1000_bus_speed_33; + } else { + switch (status & E1000_STATUS_PCIX_SPEED) { + case E1000_STATUS_PCIX_SPEED_66: + hw->bus_speed = e1000_bus_speed_66; + break; + case E1000_STATUS_PCIX_SPEED_100: + hw->bus_speed = e1000_bus_speed_100; + break; + case E1000_STATUS_PCIX_SPEED_133: + hw->bus_speed = e1000_bus_speed_133; + break; + default: + hw->bus_speed = e1000_bus_speed_reserved; + break; + } + } + hw->bus_width = (status & E1000_STATUS_BUS64) ? + e1000_bus_width_64 : e1000_bus_width_32; + break; + } +} + +/****************************************************************************** + * Writes a value to one of the devices registers using port I/O (as opposed to + * memory mapped I/O). Only 82544 and newer devices support port I/O. + * + * hw - Struct containing variables accessed by shared code + * offset - offset to write to + * value - value to write + *****************************************************************************/ +static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value) +{ + unsigned long io_addr = hw->io_base; + unsigned long io_data = hw->io_base + 4; + + e1000_io_write(hw, io_addr, offset); + e1000_io_write(hw, io_data, value); +} + +/****************************************************************************** + * Estimates the cable length. + * + * hw - Struct containing variables accessed by shared code + * min_length - The estimated minimum length + * max_length - The estimated maximum length + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * This function always returns a ranged length (minimum & maximum). + * So for M88 phy's, this function interprets the one value returned from the + * register to the minimum and maximum range. + * For IGP phy's, the function calculates the range by the AGC registers. + *****************************************************************************/ +static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, + u16 *max_length) +{ + s32 ret_val; + u16 agc_value = 0; + u16 i, phy_data; + u16 cable_length; + + DEBUGFUNC("e1000_get_cable_length"); + + *min_length = *max_length = 0; + + /* Use old method for Phy older than IGP */ + if (hw->phy_type == e1000_phy_m88) { + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + cable_length = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >> + M88E1000_PSSR_CABLE_LENGTH_SHIFT; + + /* Convert the enum value to ranged values */ + switch (cable_length) { + case e1000_cable_length_50: + *min_length = 0; + *max_length = e1000_igp_cable_length_50; + break; + case e1000_cable_length_50_80: + *min_length = e1000_igp_cable_length_50; + *max_length = e1000_igp_cable_length_80; + break; + case e1000_cable_length_80_110: + *min_length = e1000_igp_cable_length_80; + *max_length = e1000_igp_cable_length_110; + break; + case e1000_cable_length_110_140: + *min_length = e1000_igp_cable_length_110; + *max_length = e1000_igp_cable_length_140; + break; + case e1000_cable_length_140: + *min_length = e1000_igp_cable_length_140; + *max_length = e1000_igp_cable_length_170; + break; + default: + return -E1000_ERR_PHY; + break; + } + } else if (hw->phy_type == e1000_phy_gg82563) { + ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, + &phy_data); + if (ret_val) + return ret_val; + cable_length = phy_data & GG82563_DSPD_CABLE_LENGTH; + + switch (cable_length) { + case e1000_gg_cable_length_60: + *min_length = 0; + *max_length = e1000_igp_cable_length_60; + break; + case e1000_gg_cable_length_60_115: + *min_length = e1000_igp_cable_length_60; + *max_length = e1000_igp_cable_length_115; + break; + case e1000_gg_cable_length_115_150: + *min_length = e1000_igp_cable_length_115; + *max_length = e1000_igp_cable_length_150; + break; + case e1000_gg_cable_length_150: + *min_length = e1000_igp_cable_length_150; + *max_length = e1000_igp_cable_length_180; + break; + default: + return -E1000_ERR_PHY; + break; + } + } else if (hw->phy_type == e1000_phy_igp) { /* For IGP PHY */ + u16 cur_agc_value; + u16 min_agc_value = IGP01E1000_AGC_LENGTH_TABLE_SIZE; + u16 agc_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = + {IGP01E1000_PHY_AGC_A, + IGP01E1000_PHY_AGC_B, + IGP01E1000_PHY_AGC_C, + IGP01E1000_PHY_AGC_D}; + /* Read the AGC registers for all channels */ + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + + ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); + if (ret_val) + return ret_val; + + cur_agc_value = phy_data >> IGP01E1000_AGC_LENGTH_SHIFT; + + /* Value bound check. */ + if ((cur_agc_value >= IGP01E1000_AGC_LENGTH_TABLE_SIZE - 1) || + (cur_agc_value == 0)) + return -E1000_ERR_PHY; + + agc_value += cur_agc_value; + + /* Update minimal AGC value. */ + if (min_agc_value > cur_agc_value) + min_agc_value = cur_agc_value; + } + + /* Remove the minimal AGC result for length < 50m */ + if (agc_value < IGP01E1000_PHY_CHANNEL_NUM * e1000_igp_cable_length_50) { + agc_value -= min_agc_value; + + /* Get the average length of the remaining 3 channels */ + agc_value /= (IGP01E1000_PHY_CHANNEL_NUM - 1); + } else { + /* Get the average length of all the 4 channels. */ + agc_value /= IGP01E1000_PHY_CHANNEL_NUM; + } + + /* Set the range of the calculated length. */ + *min_length = ((e1000_igp_cable_length_table[agc_value] - + IGP01E1000_AGC_RANGE) > 0) ? + (e1000_igp_cable_length_table[agc_value] - + IGP01E1000_AGC_RANGE) : 0; + *max_length = e1000_igp_cable_length_table[agc_value] + + IGP01E1000_AGC_RANGE; + } else if (hw->phy_type == e1000_phy_igp_2 || + hw->phy_type == e1000_phy_igp_3) { + u16 cur_agc_index, max_agc_index = 0; + u16 min_agc_index = IGP02E1000_AGC_LENGTH_TABLE_SIZE - 1; + u16 agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] = + {IGP02E1000_PHY_AGC_A, + IGP02E1000_PHY_AGC_B, + IGP02E1000_PHY_AGC_C, + IGP02E1000_PHY_AGC_D}; + /* Read the AGC registers for all channels */ + for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) { + ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); + if (ret_val) + return ret_val; + + /* Getting bits 15:9, which represent the combination of course and + * fine gain values. The result is a number that can be put into + * the lookup table to obtain the approximate cable length. */ + cur_agc_index = (phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) & + IGP02E1000_AGC_LENGTH_MASK; + + /* Array index bound check. */ + if ((cur_agc_index >= IGP02E1000_AGC_LENGTH_TABLE_SIZE) || + (cur_agc_index == 0)) + return -E1000_ERR_PHY; + + /* Remove min & max AGC values from calculation. */ + if (e1000_igp_2_cable_length_table[min_agc_index] > + e1000_igp_2_cable_length_table[cur_agc_index]) + min_agc_index = cur_agc_index; + if (e1000_igp_2_cable_length_table[max_agc_index] < + e1000_igp_2_cable_length_table[cur_agc_index]) + max_agc_index = cur_agc_index; + + agc_value += e1000_igp_2_cable_length_table[cur_agc_index]; + } + + agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] + + e1000_igp_2_cable_length_table[max_agc_index]); + agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2); + + /* Calculate cable length with the error range of +/- 10 meters. */ + *min_length = ((agc_value - IGP02E1000_AGC_RANGE) > 0) ? + (agc_value - IGP02E1000_AGC_RANGE) : 0; + *max_length = agc_value + IGP02E1000_AGC_RANGE; + } + + return E1000_SUCCESS; +} + +/****************************************************************************** + * Check the cable polarity + * + * hw - Struct containing variables accessed by shared code + * polarity - output parameter : 0 - Polarity is not reversed + * 1 - Polarity is reversed. + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * For phy's older than IGP, this function simply reads the polarity bit in the + * Phy Status register. For IGP phy's, this bit is valid only if link speed is + * 10 Mbps. If the link speed is 100 Mbps there is no polarity so this bit will + * return 0. If the link speed is 1000 Mbps the polarity status is in the + * IGP01E1000_PHY_PCS_INIT_REG. + *****************************************************************************/ +static s32 e1000_check_polarity(struct e1000_hw *hw, + e1000_rev_polarity *polarity) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_polarity"); + + if ((hw->phy_type == e1000_phy_m88) || + (hw->phy_type == e1000_phy_gg82563)) { + /* return the Polarity bit in the Status register. */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + *polarity = ((phy_data & M88E1000_PSSR_REV_POLARITY) >> + M88E1000_PSSR_REV_POLARITY_SHIFT) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + + } else if (hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) { + /* Read the Status register to check the speed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + /* If speed is 1000 Mbps, must read the IGP01E1000_PHY_PCS_INIT_REG to + * find the polarity status */ + if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == + IGP01E1000_PSSR_SPEED_1000MBPS) { + + /* Read the GIG initialization PCS register (0x00B4) */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG, + &phy_data); + if (ret_val) + return ret_val; + + /* Check the polarity bits */ + *polarity = (phy_data & IGP01E1000_PHY_POLARITY_MASK) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + } else { + /* For 10 Mbps, read the polarity bit in the status register. (for + * 100 Mbps this bit is always 0) */ + *polarity = (phy_data & IGP01E1000_PSSR_POLARITY_REVERSED) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + } + } else if (hw->phy_type == e1000_phy_ife) { + ret_val = e1000_read_phy_reg(hw, IFE_PHY_EXTENDED_STATUS_CONTROL, + &phy_data); + if (ret_val) + return ret_val; + *polarity = ((phy_data & IFE_PESC_POLARITY_REVERSED) >> + IFE_PESC_POLARITY_REVERSED_SHIFT) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Check if Downshift occured + * + * hw - Struct containing variables accessed by shared code + * downshift - output parameter : 0 - No Downshift ocured. + * 1 - Downshift ocured. + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * For phy's older than IGP, this function reads the Downshift bit in the Phy + * Specific Status register. For IGP phy's, it reads the Downgrade bit in the + * Link Health register. In IGP this bit is latched high, so the driver must + * read it immediately after link is established. + *****************************************************************************/ +static s32 e1000_check_downshift(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_downshift"); + + if (hw->phy_type == e1000_phy_igp || + hw->phy_type == e1000_phy_igp_3 || + hw->phy_type == e1000_phy_igp_2) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH, + &phy_data); + if (ret_val) + return ret_val; + + hw->speed_downgraded = (phy_data & IGP01E1000_PLHR_SS_DOWNGRADE) ? 1 : 0; + } else if ((hw->phy_type == e1000_phy_m88) || + (hw->phy_type == e1000_phy_gg82563)) { + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + hw->speed_downgraded = (phy_data & M88E1000_PSSR_DOWNSHIFT) >> + M88E1000_PSSR_DOWNSHIFT_SHIFT; + } else if (hw->phy_type == e1000_phy_ife) { + /* e1000_phy_ife supports 10/100 speed only */ + hw->speed_downgraded = false; + } + + return E1000_SUCCESS; +} + +/***************************************************************************** + * + * 82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a + * gigabit link is achieved to improve link quality. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + * + ****************************************************************************/ + +static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, bool link_up) +{ + s32 ret_val; + u16 phy_data, phy_saved_data, speed, duplex, i; + u16 dsp_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = + {IGP01E1000_PHY_AGC_PARAM_A, + IGP01E1000_PHY_AGC_PARAM_B, + IGP01E1000_PHY_AGC_PARAM_C, + IGP01E1000_PHY_AGC_PARAM_D}; + u16 min_length, max_length; + + DEBUGFUNC("e1000_config_dsp_after_link_change"); + + if (hw->phy_type != e1000_phy_igp) + return E1000_SUCCESS; + + if (link_up) { + ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT("Error getting link speed and duplex\n"); + return ret_val; + } + + if (speed == SPEED_1000) { + + ret_val = e1000_get_cable_length(hw, &min_length, &max_length); + if (ret_val) + return ret_val; + + if ((hw->dsp_config_state == e1000_dsp_config_enabled) && + min_length >= e1000_igp_cable_length_50) { + + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; + + ret_val = e1000_write_phy_reg(hw, dsp_reg_array[i], + phy_data); + if (ret_val) + return ret_val; + } + hw->dsp_config_state = e1000_dsp_config_activated; + } + + if ((hw->ffe_config_state == e1000_ffe_config_enabled) && + (min_length < e1000_igp_cable_length_50)) { + + u16 ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_20; + u32 idle_errs = 0; + + /* clear previous idle error counts */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + for (i = 0; i < ffe_idle_err_timeout; i++) { + udelay(1000); + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + idle_errs += (phy_data & SR_1000T_IDLE_ERROR_CNT); + if (idle_errs > SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT) { + hw->ffe_config_state = e1000_ffe_config_active; + + ret_val = e1000_write_phy_reg(hw, + IGP01E1000_PHY_DSP_FFE, + IGP01E1000_PHY_DSP_FFE_CM_CP); + if (ret_val) + return ret_val; + break; + } + + if (idle_errs) + ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_100; + } + } + } + } else { + if (hw->dsp_config_state == e1000_dsp_config_activated) { + /* Save off the current value of register 0x2F5B to be restored at + * the end of the routines. */ + ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + if (ret_val) + return ret_val; + + /* Disable the PHY transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + if (ret_val) + return ret_val; + + mdelay(20); + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_FORCE_GIGA); + if (ret_val) + return ret_val; + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; + phy_data |= IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS; + + ret_val = e1000_write_phy_reg(hw,dsp_reg_array[i], phy_data); + if (ret_val) + return ret_val; + } + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_RESTART_AUTONEG); + if (ret_val) + return ret_val; + + mdelay(20); + + /* Now enable the transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (ret_val) + return ret_val; + + hw->dsp_config_state = e1000_dsp_config_enabled; + } + + if (hw->ffe_config_state == e1000_ffe_config_active) { + /* Save off the current value of register 0x2F5B to be restored at + * the end of the routines. */ + ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + if (ret_val) + return ret_val; + + /* Disable the PHY transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + if (ret_val) + return ret_val; + + mdelay(20); + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_FORCE_GIGA); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_DSP_FFE, + IGP01E1000_PHY_DSP_FFE_DEFAULT); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_RESTART_AUTONEG); + if (ret_val) + return ret_val; + + mdelay(20); + + /* Now enable the transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (ret_val) + return ret_val; + + hw->ffe_config_state = e1000_ffe_config_enabled; + } + } + return E1000_SUCCESS; +} + +/***************************************************************************** + * Set PHY to class A mode + * Assumes the following operations will follow to enable the new class mode. + * 1. Do a PHY soft reset + * 2. Restart auto-negotiation or force link. + * + * hw - Struct containing variables accessed by shared code + ****************************************************************************/ +static s32 e1000_set_phy_mode(struct e1000_hw *hw) +{ + s32 ret_val; + u16 eeprom_data; + + DEBUGFUNC("e1000_set_phy_mode"); + + if ((hw->mac_type == e1000_82545_rev_3) && + (hw->media_type == e1000_media_type_copper)) { + ret_val = e1000_read_eeprom(hw, EEPROM_PHY_CLASS_WORD, 1, &eeprom_data); + if (ret_val) { + return ret_val; + } + + if ((eeprom_data != EEPROM_RESERVED_WORD) && + (eeprom_data & EEPROM_PHY_CLASS_A)) { + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x000B); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x8104); + if (ret_val) + return ret_val; + + hw->phy_reset_disable = false; + } + } + + return E1000_SUCCESS; +} + +/***************************************************************************** + * + * This function sets the lplu state according to the active flag. When + * activating lplu this function also disables smart speed and vise versa. + * lplu will not be activated unless the device autonegotiation advertisment + * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. + * hw: Struct containing variables accessed by shared code + * active - true to enable lplu false to disable lplu. + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + * + ****************************************************************************/ + +static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active) +{ + u32 phy_ctrl = 0; + s32 ret_val; + u16 phy_data; + DEBUGFUNC("e1000_set_d3_lplu_state"); + + if (hw->phy_type != e1000_phy_igp && hw->phy_type != e1000_phy_igp_2 + && hw->phy_type != e1000_phy_igp_3) + return E1000_SUCCESS; + + /* During driver activity LPLU should not be used or it will attain link + * from the lowest speeds starting from 10Mbps. The capability is used for + * Dx transitions and states */ + if (hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, &phy_data); + if (ret_val) + return ret_val; + } else if (hw->mac_type == e1000_ich8lan) { + /* MAC writes into PHY register based on the state transition + * and start auto-negotiation. SW driver can overwrite the settings + * in CSR PHY power control E1000_PHY_CTRL register. */ + phy_ctrl = er32(PHY_CTRL); + } else { + ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); + if (ret_val) + return ret_val; + } + + if (!active) { + if (hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547_rev_2) { + phy_data &= ~IGP01E1000_GMII_FLEX_SPD; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); + if (ret_val) + return ret_val; + } else { + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU; + ew32(PHY_CTRL, phy_ctrl); + } else { + phy_data &= ~IGP02E1000_PM_D3_LPLU; + ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, + phy_data); + if (ret_val) + return ret_val; + } + } + + /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during + * Dx states where the power conservation is most important. During + * driver activity we should enable SmartSpeed, so performance is + * maintained. */ + if (hw->smart_speed == e1000_smart_speed_on) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } else if (hw->smart_speed == e1000_smart_speed_off) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } + + } else if ((hw->autoneg_advertised == AUTONEG_ADVERTISE_SPEED_DEFAULT) || + (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_ALL ) || + (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_100_ALL)) { + + if (hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547_rev_2) { + phy_data |= IGP01E1000_GMII_FLEX_SPD; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); + if (ret_val) + return ret_val; + } else { + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU; + ew32(PHY_CTRL, phy_ctrl); + } else { + phy_data |= IGP02E1000_PM_D3_LPLU; + ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, + phy_data); + if (ret_val) + return ret_val; + } + } + + /* When LPLU is enabled we should disable SmartSpeed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); + if (ret_val) + return ret_val; + + } + return E1000_SUCCESS; +} + +/***************************************************************************** + * + * This function sets the lplu d0 state according to the active flag. When + * activating lplu this function also disables smart speed and vise versa. + * lplu will not be activated unless the device autonegotiation advertisment + * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. + * hw: Struct containing variables accessed by shared code + * active - true to enable lplu false to disable lplu. + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + * + ****************************************************************************/ + +static s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active) +{ + u32 phy_ctrl = 0; + s32 ret_val; + u16 phy_data; + DEBUGFUNC("e1000_set_d0_lplu_state"); + + if (hw->mac_type <= e1000_82547_rev_2) + return E1000_SUCCESS; + + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl = er32(PHY_CTRL); + } else { + ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); + if (ret_val) + return ret_val; + } + + if (!active) { + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU; + ew32(PHY_CTRL, phy_ctrl); + } else { + phy_data &= ~IGP02E1000_PM_D0_LPLU; + ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); + if (ret_val) + return ret_val; + } + + /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during + * Dx states where the power conservation is most important. During + * driver activity we should enable SmartSpeed, so performance is + * maintained. */ + if (hw->smart_speed == e1000_smart_speed_on) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } else if (hw->smart_speed == e1000_smart_speed_off) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } + + + } else { + + if (hw->mac_type == e1000_ich8lan) { + phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU; + ew32(PHY_CTRL, phy_ctrl); + } else { + phy_data |= IGP02E1000_PM_D0_LPLU; + ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); + if (ret_val) + return ret_val; + } + + /* When LPLU is enabled we should disable SmartSpeed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); + if (ret_val) + return ret_val; + + } + return E1000_SUCCESS; +} + +/****************************************************************************** + * Change VCO speed register to improve Bit Error Rate performance of SERDES. + * + * hw - Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_set_vco_speed(struct e1000_hw *hw) +{ + s32 ret_val; + u16 default_page = 0; + u16 phy_data; + + DEBUGFUNC("e1000_set_vco_speed"); + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + return E1000_SUCCESS; + } + + /* Set PHY register 30, page 5, bit 8 to 0 */ + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, &default_page); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~M88E1000_PHY_VCO_REG_BIT8; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); + if (ret_val) + return ret_val; + + /* Set PHY register 30, page 4, bit 11 to 1 */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PHY_VCO_REG_BIT11; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, default_page); + if (ret_val) + return ret_val; + + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function reads the cookie from ARC ram. + * + * returns: - E1000_SUCCESS . + ****************************************************************************/ +static s32 e1000_host_if_read_cookie(struct e1000_hw *hw, u8 *buffer) +{ + u8 i; + u32 offset = E1000_MNG_DHCP_COOKIE_OFFSET; + u8 length = E1000_MNG_DHCP_COOKIE_LENGTH; + + length = (length >> 2); + offset = (offset >> 2); + + for (i = 0; i < length; i++) { + *((u32 *)buffer + i) = + E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset + i); + } + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function checks whether the HOST IF is enabled for command operaton + * and also checks whether the previous command is completed. + * It busy waits in case of previous command is not completed. + * + * returns: - E1000_ERR_HOST_INTERFACE_COMMAND in case if is not ready or + * timeout + * - E1000_SUCCESS for success. + ****************************************************************************/ +static s32 e1000_mng_enable_host_if(struct e1000_hw *hw) +{ + u32 hicr; + u8 i; + + /* Check that the host interface is enabled. */ + hicr = er32(HICR); + if ((hicr & E1000_HICR_EN) == 0) { + DEBUGOUT("E1000_HOST_EN bit disabled.\n"); + return -E1000_ERR_HOST_INTERFACE_COMMAND; + } + /* check the previous command is completed */ + for (i = 0; i < E1000_MNG_DHCP_COMMAND_TIMEOUT; i++) { + hicr = er32(HICR); + if (!(hicr & E1000_HICR_C)) + break; + mdelay(1); + } + + if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) { + DEBUGOUT("Previous command timeout failed .\n"); + return -E1000_ERR_HOST_INTERFACE_COMMAND; + } + return E1000_SUCCESS; +} + +/***************************************************************************** + * This function writes the buffer content at the offset given on the host if. + * It also does alignment considerations to do the writes in most efficient way. + * Also fills up the sum of the buffer in *buffer parameter. + * + * returns - E1000_SUCCESS for success. + ****************************************************************************/ +static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer, u16 length, + u16 offset, u8 *sum) +{ + u8 *tmp; + u8 *bufptr = buffer; + u32 data = 0; + u16 remaining, i, j, prev_bytes; + + /* sum = only sum of the data and it is not checksum */ + + if (length == 0 || offset + length > E1000_HI_MAX_MNG_DATA_LENGTH) { + return -E1000_ERR_PARAM; + } + + tmp = (u8 *)&data; + prev_bytes = offset & 0x3; + offset &= 0xFFFC; + offset >>= 2; + + if (prev_bytes) { + data = E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset); + for (j = prev_bytes; j < sizeof(u32); j++) { + *(tmp + j) = *bufptr++; + *sum += *(tmp + j); + } + E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset, data); + length -= j - prev_bytes; + offset++; + } + + remaining = length & 0x3; + length -= remaining; + + /* Calculate length in DWORDs */ + length >>= 2; + + /* The device driver writes the relevant command block into the + * ram area. */ + for (i = 0; i < length; i++) { + for (j = 0; j < sizeof(u32); j++) { + *(tmp + j) = *bufptr++; + *sum += *(tmp + j); + } + + E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); + } + if (remaining) { + for (j = 0; j < sizeof(u32); j++) { + if (j < remaining) + *(tmp + j) = *bufptr++; + else + *(tmp + j) = 0; + + *sum += *(tmp + j); + } + E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); + } + + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function writes the command header after does the checksum calculation. + * + * returns - E1000_SUCCESS for success. + ****************************************************************************/ +static s32 e1000_mng_write_cmd_header(struct e1000_hw *hw, + struct e1000_host_mng_command_header *hdr) +{ + u16 i; + u8 sum; + u8 *buffer; + + /* Write the whole command header structure which includes sum of + * the buffer */ + + u16 length = sizeof(struct e1000_host_mng_command_header); + + sum = hdr->checksum; + hdr->checksum = 0; + + buffer = (u8 *)hdr; + i = length; + while (i--) + sum += buffer[i]; + + hdr->checksum = 0 - sum; + + length >>= 2; + /* The device driver writes the relevant command block into the ram area. */ + for (i = 0; i < length; i++) { + E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, i, *((u32 *)hdr + i)); + E1000_WRITE_FLUSH(); + } + + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function indicates to ARC that a new command is pending which completes + * one write operation by the driver. + * + * returns - E1000_SUCCESS for success. + ****************************************************************************/ +static s32 e1000_mng_write_commit(struct e1000_hw *hw) +{ + u32 hicr; + + hicr = er32(HICR); + /* Setting this bit tells the ARC that a new command is pending. */ + ew32(HICR, hicr | E1000_HICR_C); + + return E1000_SUCCESS; +} + + +/***************************************************************************** + * This function checks the mode of the firmware. + * + * returns - true when the mode is IAMT or false. + ****************************************************************************/ +bool e1000_check_mng_mode(struct e1000_hw *hw) +{ + u32 fwsm; + + fwsm = er32(FWSM); + + if (hw->mac_type == e1000_ich8lan) { + if ((fwsm & E1000_FWSM_MODE_MASK) == + (E1000_MNG_ICH_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) + return true; + } else if ((fwsm & E1000_FWSM_MODE_MASK) == + (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) + return true; + + return false; +} + + +/***************************************************************************** + * This function writes the dhcp info . + ****************************************************************************/ +s32 e1000_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length) +{ + s32 ret_val; + struct e1000_host_mng_command_header hdr; + + hdr.command_id = E1000_MNG_DHCP_TX_PAYLOAD_CMD; + hdr.command_length = length; + hdr.reserved1 = 0; + hdr.reserved2 = 0; + hdr.checksum = 0; + + ret_val = e1000_mng_enable_host_if(hw); + if (ret_val == E1000_SUCCESS) { + ret_val = e1000_mng_host_if_write(hw, buffer, length, sizeof(hdr), + &(hdr.checksum)); + if (ret_val == E1000_SUCCESS) { + ret_val = e1000_mng_write_cmd_header(hw, &hdr); + if (ret_val == E1000_SUCCESS) + ret_val = e1000_mng_write_commit(hw); + } + } + return ret_val; +} + + +/***************************************************************************** + * This function calculates the checksum. + * + * returns - checksum of buffer contents. + ****************************************************************************/ +static u8 e1000_calculate_mng_checksum(char *buffer, u32 length) +{ + u8 sum = 0; + u32 i; + + if (!buffer) + return 0; + + for (i=0; i < length; i++) + sum += buffer[i]; + + return (u8)(0 - sum); +} + +/***************************************************************************** + * This function checks whether tx pkt filtering needs to be enabled or not. + * + * returns - true for packet filtering or false. + ****************************************************************************/ +bool e1000_enable_tx_pkt_filtering(struct e1000_hw *hw) +{ + /* called in init as well as watchdog timer functions */ + + s32 ret_val, checksum; + bool tx_filter = false; + struct e1000_host_mng_dhcp_cookie *hdr = &(hw->mng_cookie); + u8 *buffer = (u8 *) &(hw->mng_cookie); + + if (e1000_check_mng_mode(hw)) { + ret_val = e1000_mng_enable_host_if(hw); + if (ret_val == E1000_SUCCESS) { + ret_val = e1000_host_if_read_cookie(hw, buffer); + if (ret_val == E1000_SUCCESS) { + checksum = hdr->checksum; + hdr->checksum = 0; + if ((hdr->signature == E1000_IAMT_SIGNATURE) && + checksum == e1000_calculate_mng_checksum((char *)buffer, + E1000_MNG_DHCP_COOKIE_LENGTH)) { + if (hdr->status & + E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT) + tx_filter = true; + } else + tx_filter = true; + } else + tx_filter = true; + } + } + + hw->tx_pkt_filtering = tx_filter; + return tx_filter; +} + +/****************************************************************************** + * Verifies the hardware needs to allow ARPs to be processed by the host + * + * hw - Struct containing variables accessed by shared code + * + * returns: - true/false + * + *****************************************************************************/ +u32 e1000_enable_mng_pass_thru(struct e1000_hw *hw) +{ + u32 manc; + u32 fwsm, factps; + + if (hw->asf_firmware_present) { + manc = er32(MANC); + + if (!(manc & E1000_MANC_RCV_TCO_EN) || + !(manc & E1000_MANC_EN_MAC_ADDR_FILTER)) + return false; + if (e1000_arc_subsystem_valid(hw)) { + fwsm = er32(FWSM); + factps = er32(FACTPS); + + if ((((fwsm & E1000_FWSM_MODE_MASK) >> E1000_FWSM_MODE_SHIFT) == + e1000_mng_mode_pt) && !(factps & E1000_FACTPS_MNGCG)) + return true; + } else + if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN)) + return true; + } + return false; +} + +static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_status_reg; + u16 i; + + /* Polarity reversal workaround for forced 10F/10H links. */ + + /* Disable the transmitter on the PHY */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); + if (ret_val) + return ret_val; + + /* This loop will early-out if the NO link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Link Status bit + * to be clear. + */ + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0) break; + mdelay(100); + } + + /* Recommended delay time after link has been lost */ + mdelay(1000); + + /* Now we will re-enable th transmitter on the PHY */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); + if (ret_val) + return ret_val; + + /* This loop will early-out if the link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Link Status bit + * to be set. + */ + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_LINK_STATUS) break; + mdelay(100); + } + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Disables PCI-Express master access. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - none. + * + ***************************************************************************/ +static void e1000_set_pci_express_master_disable(struct e1000_hw *hw) +{ + u32 ctrl; + + DEBUGFUNC("e1000_set_pci_express_master_disable"); + + if (hw->bus_type != e1000_bus_type_pci_express) + return; + + ctrl = er32(CTRL); + ctrl |= E1000_CTRL_GIO_MASTER_DISABLE; + ew32(CTRL, ctrl); +} + +/******************************************************************************* + * + * Disables PCI-Express master access and verifies there are no pending requests + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_MASTER_REQUESTS_PENDING if master disable bit hasn't + * caused the master requests to be disabled. + * E1000_SUCCESS master requests disabled. + * + ******************************************************************************/ +s32 e1000_disable_pciex_master(struct e1000_hw *hw) +{ + s32 timeout = MASTER_DISABLE_TIMEOUT; /* 80ms */ + + DEBUGFUNC("e1000_disable_pciex_master"); + + if (hw->bus_type != e1000_bus_type_pci_express) + return E1000_SUCCESS; + + e1000_set_pci_express_master_disable(hw); + + while (timeout) { + if (!(er32(STATUS) & E1000_STATUS_GIO_MASTER_ENABLE)) + break; + else + udelay(100); + timeout--; + } + + if (!timeout) { + DEBUGOUT("Master requests are pending.\n"); + return -E1000_ERR_MASTER_REQUESTS_PENDING; + } + + return E1000_SUCCESS; +} + +/******************************************************************************* + * + * Check for EEPROM Auto Read bit done. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_RESET if fail to reset MAC + * E1000_SUCCESS at any other case. + * + ******************************************************************************/ +static s32 e1000_get_auto_rd_done(struct e1000_hw *hw) +{ + s32 timeout = AUTO_READ_DONE_TIMEOUT; + + DEBUGFUNC("e1000_get_auto_rd_done"); + + switch (hw->mac_type) { + default: + msleep(5); + break; + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + while (timeout) { + if (er32(EECD) & E1000_EECD_AUTO_RD) + break; + else msleep(1); + timeout--; + } + + if (!timeout) { + DEBUGOUT("Auto read by HW from EEPROM has not completed.\n"); + return -E1000_ERR_RESET; + } + break; + } + + /* PHY configuration from NVM just starts after EECD_AUTO_RD sets to high. + * Need to wait for PHY configuration completion before accessing NVM + * and PHY. */ + if (hw->mac_type == e1000_82573) + msleep(25); + + return E1000_SUCCESS; +} + +/*************************************************************************** + * Checks if the PHY configuration is done + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_RESET if fail to reset MAC + * E1000_SUCCESS at any other case. + * + ***************************************************************************/ +static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw) +{ + s32 timeout = PHY_CFG_TIMEOUT; + u32 cfg_mask = E1000_EEPROM_CFG_DONE; + + DEBUGFUNC("e1000_get_phy_cfg_done"); + + switch (hw->mac_type) { + default: + mdelay(10); + break; + case e1000_80003es2lan: + /* Separate *_CFG_DONE_* bit for each port */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) + cfg_mask = E1000_EEPROM_CFG_DONE_PORT_1; + /* Fall Through */ + case e1000_82571: + case e1000_82572: + while (timeout) { + if (er32(EEMNGCTL) & cfg_mask) + break; + else + msleep(1); + timeout--; + } + if (!timeout) { + DEBUGOUT("MNG configuration cycle has not completed.\n"); + return -E1000_ERR_RESET; + } + break; + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Using the combination of SMBI and SWESMBI semaphore bits when resetting + * adapter or Eeprom access. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_EEPROM if fail to access EEPROM. + * E1000_SUCCESS at any other case. + * + ***************************************************************************/ +static s32 e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw) +{ + s32 timeout; + u32 swsm; + + DEBUGFUNC("e1000_get_hw_eeprom_semaphore"); + + if (!hw->eeprom_semaphore_present) + return E1000_SUCCESS; + + if (hw->mac_type == e1000_80003es2lan) { + /* Get the SW semaphore. */ + if (e1000_get_software_semaphore(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + } + + /* Get the FW semaphore. */ + timeout = hw->eeprom.word_size + 1; + while (timeout) { + swsm = er32(SWSM); + swsm |= E1000_SWSM_SWESMBI; + ew32(SWSM, swsm); + /* if we managed to set the bit we got the semaphore. */ + swsm = er32(SWSM); + if (swsm & E1000_SWSM_SWESMBI) + break; + + udelay(50); + timeout--; + } + + if (!timeout) { + /* Release semaphores */ + e1000_put_hw_eeprom_semaphore(hw); + DEBUGOUT("Driver can't access the Eeprom - SWESMBI bit is set.\n"); + return -E1000_ERR_EEPROM; + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * This function clears HW semaphore bits. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - None. + * + ***************************************************************************/ +static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw) +{ + u32 swsm; + + DEBUGFUNC("e1000_put_hw_eeprom_semaphore"); + + if (!hw->eeprom_semaphore_present) + return; + + swsm = er32(SWSM); + if (hw->mac_type == e1000_80003es2lan) { + /* Release both semaphores. */ + swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI); + } else + swsm &= ~(E1000_SWSM_SWESMBI); + ew32(SWSM, swsm); +} + +/*************************************************************************** + * + * Obtaining software semaphore bit (SMBI) before resetting PHY. + * + * hw: Struct containing variables accessed by shared code + * + * returns: - E1000_ERR_RESET if fail to obtain semaphore. + * E1000_SUCCESS at any other case. + * + ***************************************************************************/ +static s32 e1000_get_software_semaphore(struct e1000_hw *hw) +{ + s32 timeout = hw->eeprom.word_size + 1; + u32 swsm; + + DEBUGFUNC("e1000_get_software_semaphore"); + + if (hw->mac_type != e1000_80003es2lan) { + return E1000_SUCCESS; + } + + while (timeout) { + swsm = er32(SWSM); + /* If SMBI bit cleared, it is now set and we hold the semaphore */ + if (!(swsm & E1000_SWSM_SMBI)) + break; + mdelay(1); + timeout--; + } + + if (!timeout) { + DEBUGOUT("Driver can't access device - SMBI bit is set.\n"); + return -E1000_ERR_RESET; + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Release semaphore bit (SMBI). + * + * hw: Struct containing variables accessed by shared code + * + ***************************************************************************/ +static void e1000_release_software_semaphore(struct e1000_hw *hw) +{ + u32 swsm; + + DEBUGFUNC("e1000_release_software_semaphore"); + + if (hw->mac_type != e1000_80003es2lan) { + return; + } + + swsm = er32(SWSM); + /* Release the SW semaphores.*/ + swsm &= ~E1000_SWSM_SMBI; + ew32(SWSM, swsm); +} + +/****************************************************************************** + * Checks if PHY reset is blocked due to SOL/IDER session, for example. + * Returning E1000_BLK_PHY_RESET isn't necessarily an error. But it's up to + * the caller to figure out how to deal with it. + * + * hw - Struct containing variables accessed by shared code + * + * returns: - E1000_BLK_PHY_RESET + * E1000_SUCCESS + * + *****************************************************************************/ +s32 e1000_check_phy_reset_block(struct e1000_hw *hw) +{ + u32 manc = 0; + u32 fwsm = 0; + + if (hw->mac_type == e1000_ich8lan) { + fwsm = er32(FWSM); + return (fwsm & E1000_FWSM_RSPCIPHY) ? E1000_SUCCESS + : E1000_BLK_PHY_RESET; + } + + if (hw->mac_type > e1000_82547_rev_2) + manc = er32(MANC); + return (manc & E1000_MANC_BLK_PHY_RST_ON_IDE) ? + E1000_BLK_PHY_RESET : E1000_SUCCESS; +} + +static u8 e1000_arc_subsystem_valid(struct e1000_hw *hw) +{ + u32 fwsm; + + /* On 8257x silicon, registers in the range of 0x8800 - 0x8FFC + * may not be provided a DMA clock when no manageability features are + * enabled. We do not want to perform any reads/writes to these registers + * if this is the case. We read FWSM to determine the manageability mode. + */ + switch (hw->mac_type) { + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + fwsm = er32(FWSM); + if ((fwsm & E1000_FWSM_MODE_MASK) != 0) + return true; + break; + case e1000_ich8lan: + return true; + default: + break; + } + return false; +} + + +/****************************************************************************** + * Configure PCI-Ex no-snoop + * + * hw - Struct containing variables accessed by shared code. + * no_snoop - Bitmap of no-snoop events. + * + * returns: E1000_SUCCESS + * + *****************************************************************************/ +static s32 e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, u32 no_snoop) +{ + u32 gcr_reg = 0; + + DEBUGFUNC("e1000_set_pci_ex_no_snoop"); + + if (hw->bus_type == e1000_bus_type_unknown) + e1000_get_bus_info(hw); + + if (hw->bus_type != e1000_bus_type_pci_express) + return E1000_SUCCESS; + + if (no_snoop) { + gcr_reg = er32(GCR); + gcr_reg &= ~(PCI_EX_NO_SNOOP_ALL); + gcr_reg |= no_snoop; + ew32(GCR, gcr_reg); + } + if (hw->mac_type == e1000_ich8lan) { + u32 ctrl_ext; + + ew32(GCR, PCI_EX_82566_SNOOP_ALL); + + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_RO_DIS; + ew32(CTRL_EXT, ctrl_ext); + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Get software semaphore FLAG bit (SWFLAG). + * SWFLAG is used to synchronize the access to all shared resource between + * SW, FW and HW. + * + * hw: Struct containing variables accessed by shared code + * + ***************************************************************************/ +static s32 e1000_get_software_flag(struct e1000_hw *hw) +{ + s32 timeout = PHY_CFG_TIMEOUT; + u32 extcnf_ctrl; + + DEBUGFUNC("e1000_get_software_flag"); + + if (hw->mac_type == e1000_ich8lan) { + while (timeout) { + extcnf_ctrl = er32(EXTCNF_CTRL); + extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; + ew32(EXTCNF_CTRL, extcnf_ctrl); + + extcnf_ctrl = er32(EXTCNF_CTRL); + if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) + break; + mdelay(1); + timeout--; + } + + if (!timeout) { + DEBUGOUT("FW or HW locks the resource too long.\n"); + return -E1000_ERR_CONFIG; + } + } + + return E1000_SUCCESS; +} + +/*************************************************************************** + * + * Release software semaphore FLAG bit (SWFLAG). + * SWFLAG is used to synchronize the access to all shared resource between + * SW, FW and HW. + * + * hw: Struct containing variables accessed by shared code + * + ***************************************************************************/ +static void e1000_release_software_flag(struct e1000_hw *hw) +{ + u32 extcnf_ctrl; + + DEBUGFUNC("e1000_release_software_flag"); + + if (hw->mac_type == e1000_ich8lan) { + extcnf_ctrl= er32(EXTCNF_CTRL); + extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; + ew32(EXTCNF_CTRL, extcnf_ctrl); + } + + return; +} + +/****************************************************************************** + * Reads a 16 bit word or words from the EEPROM using the ICH8's flash access + * register. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to read + * data - word read from the EEPROM + * words - number of words to read + *****************************************************************************/ +static s32 e1000_read_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + s32 error = E1000_SUCCESS; + u32 flash_bank = 0; + u32 act_offset = 0; + u32 bank_offset = 0; + u16 word = 0; + u16 i = 0; + + /* We need to know which is the valid flash bank. In the event + * that we didn't allocate eeprom_shadow_ram, we may not be + * managing flash_bank. So it cannot be trusted and needs + * to be updated with each read. + */ + /* Value of bit 22 corresponds to the flash bank we're on. */ + flash_bank = (er32(EECD) & E1000_EECD_SEC1VAL) ? 1 : 0; + + /* Adjust offset appropriately if we're on bank 1 - adjust for word size */ + bank_offset = flash_bank * (hw->flash_bank_size * 2); + + error = e1000_get_software_flag(hw); + if (error != E1000_SUCCESS) + return error; + + for (i = 0; i < words; i++) { + if (hw->eeprom_shadow_ram != NULL && + hw->eeprom_shadow_ram[offset+i].modified) { + data[i] = hw->eeprom_shadow_ram[offset+i].eeprom_word; + } else { + /* The NVM part needs a byte offset, hence * 2 */ + act_offset = bank_offset + ((offset + i) * 2); + error = e1000_read_ich8_word(hw, act_offset, &word); + if (error != E1000_SUCCESS) + break; + data[i] = word; + } + } + + e1000_release_software_flag(hw); + + return error; +} + +/****************************************************************************** + * Writes a 16 bit word or words to the EEPROM using the ICH8's flash access + * register. Actually, writes are written to the shadow ram cache in the hw + * structure hw->e1000_shadow_ram. e1000_commit_shadow_ram flushes this to + * the NVM, which occurs when the NVM checksum is updated. + * + * hw - Struct containing variables accessed by shared code + * offset - offset of word in the EEPROM to write + * words - number of words to write + * data - words to write to the EEPROM + *****************************************************************************/ +static s32 e1000_write_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + u32 i = 0; + s32 error = E1000_SUCCESS; + + error = e1000_get_software_flag(hw); + if (error != E1000_SUCCESS) + return error; + + /* A driver can write to the NVM only if it has eeprom_shadow_ram + * allocated. Subsequent reads to the modified words are read from + * this cached structure as well. Writes will only go into this + * cached structure unless it's followed by a call to + * e1000_update_eeprom_checksum() where it will commit the changes + * and clear the "modified" field. + */ + if (hw->eeprom_shadow_ram != NULL) { + for (i = 0; i < words; i++) { + if ((offset + i) < E1000_SHADOW_RAM_WORDS) { + hw->eeprom_shadow_ram[offset+i].modified = true; + hw->eeprom_shadow_ram[offset+i].eeprom_word = data[i]; + } else { + error = -E1000_ERR_EEPROM; + break; + } + } + } else { + /* Drivers have the option to not allocate eeprom_shadow_ram as long + * as they don't perform any NVM writes. An attempt in doing so + * will result in this error. + */ + error = -E1000_ERR_EEPROM; + } + + e1000_release_software_flag(hw); + + return error; +} + +/****************************************************************************** + * This function does initial flash setup so that a new read/write/erase cycle + * can be started. + * + * hw - The pointer to the hw structure + ****************************************************************************/ +static s32 e1000_ich8_cycle_init(struct e1000_hw *hw) +{ + union ich8_hws_flash_status hsfsts; + s32 error = E1000_ERR_EEPROM; + s32 i = 0; + + DEBUGFUNC("e1000_ich8_cycle_init"); + + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + + /* May be check the Flash Des Valid bit in Hw status */ + if (hsfsts.hsf_status.fldesvalid == 0) { + DEBUGOUT("Flash descriptor invalid. SW Sequencing must be used."); + return error; + } + + /* Clear FCERR in Hw status by writing 1 */ + /* Clear DAEL in Hw status by writing a 1 */ + hsfsts.hsf_status.flcerr = 1; + hsfsts.hsf_status.dael = 1; + + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); + + /* Either we should have a hardware SPI cycle in progress bit to check + * against, in order to start a new cycle or FDONE bit should be changed + * in the hardware so that it is 1 after harware reset, which can then be + * used as an indication whether a cycle is in progress or has been + * completed .. we should also have some software semaphore mechanism to + * guard FDONE or the cycle in progress bit so that two threads access to + * those bits can be sequentiallized or a way so that 2 threads dont + * start the cycle at the same time */ + + if (hsfsts.hsf_status.flcinprog == 0) { + /* There is no cycle running at present, so we can start a cycle */ + /* Begin by setting Flash Cycle Done. */ + hsfsts.hsf_status.flcdone = 1; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); + error = E1000_SUCCESS; + } else { + /* otherwise poll for sometime so the current cycle has a chance + * to end before giving up. */ + for (i = 0; i < ICH_FLASH_COMMAND_TIMEOUT; i++) { + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcinprog == 0) { + error = E1000_SUCCESS; + break; + } + udelay(1); + } + if (error == E1000_SUCCESS) { + /* Successful in waiting for previous cycle to timeout, + * now set the Flash Cycle Done. */ + hsfsts.hsf_status.flcdone = 1; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); + } else { + DEBUGOUT("Flash controller busy, cannot get access"); + } + } + return error; +} + +/****************************************************************************** + * This function starts a flash cycle and waits for its completion + * + * hw - The pointer to the hw structure + ****************************************************************************/ +static s32 e1000_ich8_flash_cycle(struct e1000_hw *hw, u32 timeout) +{ + union ich8_hws_flash_ctrl hsflctl; + union ich8_hws_flash_status hsfsts; + s32 error = E1000_ERR_EEPROM; + u32 i = 0; + + /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */ + hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); + hsflctl.hsf_ctrl.flcgo = 1; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); + + /* wait till FDONE bit is set to 1 */ + do { + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcdone == 1) + break; + udelay(1); + i++; + } while (i < timeout); + if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0) { + error = E1000_SUCCESS; + } + return error; +} + +/****************************************************************************** + * Reads a byte or word from the NVM using the ICH8 flash access registers. + * + * hw - The pointer to the hw structure + * index - The index of the byte or word to read. + * size - Size of data to read, 1=byte 2=word + * data - Pointer to the word to store the value read. + *****************************************************************************/ +static s32 e1000_read_ich8_data(struct e1000_hw *hw, u32 index, u32 size, + u16 *data) +{ + union ich8_hws_flash_status hsfsts; + union ich8_hws_flash_ctrl hsflctl; + u32 flash_linear_address; + u32 flash_data = 0; + s32 error = -E1000_ERR_EEPROM; + s32 count = 0; + + DEBUGFUNC("e1000_read_ich8_data"); + + if (size < 1 || size > 2 || data == NULL || + index > ICH_FLASH_LINEAR_ADDR_MASK) + return error; + + flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) + + hw->flash_base_addr; + + do { + udelay(1); + /* Steps */ + error = e1000_ich8_cycle_init(hw); + if (error != E1000_SUCCESS) + break; + + hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); + /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ + hsflctl.hsf_ctrl.fldbcount = size - 1; + hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); + + /* Write the last 24 bits of index into Flash Linear address field in + * Flash Address */ + /* TODO: TBD maybe check the index against the size of flash */ + + E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); + + error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT); + + /* Check if FCERR is set to 1, if set to 1, clear it and try the whole + * sequence a few more times, else read in (shift in) the Flash Data0, + * the order is least significant byte first msb to lsb */ + if (error == E1000_SUCCESS) { + flash_data = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0); + if (size == 1) { + *data = (u8)(flash_data & 0x000000FF); + } else if (size == 2) { + *data = (u16)(flash_data & 0x0000FFFF); + } + break; + } else { + /* If we've gotten here, then things are probably completely hosed, + * but if the error condition is detected, it won't hurt to give + * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times. + */ + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcerr == 1) { + /* Repeat for some time before giving up. */ + continue; + } else if (hsfsts.hsf_status.flcdone == 0) { + DEBUGOUT("Timeout error - flash cycle did not complete."); + break; + } + } + } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); + + return error; +} + +/****************************************************************************** + * Writes One /two bytes to the NVM using the ICH8 flash access registers. + * + * hw - The pointer to the hw structure + * index - The index of the byte/word to read. + * size - Size of data to read, 1=byte 2=word + * data - The byte(s) to write to the NVM. + *****************************************************************************/ +static s32 e1000_write_ich8_data(struct e1000_hw *hw, u32 index, u32 size, + u16 data) +{ + union ich8_hws_flash_status hsfsts; + union ich8_hws_flash_ctrl hsflctl; + u32 flash_linear_address; + u32 flash_data = 0; + s32 error = -E1000_ERR_EEPROM; + s32 count = 0; + + DEBUGFUNC("e1000_write_ich8_data"); + + if (size < 1 || size > 2 || data > size * 0xff || + index > ICH_FLASH_LINEAR_ADDR_MASK) + return error; + + flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) + + hw->flash_base_addr; + + do { + udelay(1); + /* Steps */ + error = e1000_ich8_cycle_init(hw); + if (error != E1000_SUCCESS) + break; + + hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); + /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ + hsflctl.hsf_ctrl.fldbcount = size -1; + hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); + + /* Write the last 24 bits of index into Flash Linear address field in + * Flash Address */ + E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); + + if (size == 1) + flash_data = (u32)data & 0x00FF; + else + flash_data = (u32)data; + + E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0, flash_data); + + /* check if FCERR is set to 1 , if set to 1, clear it and try the whole + * sequence a few more times else done */ + error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT); + if (error == E1000_SUCCESS) { + break; + } else { + /* If we're here, then things are most likely completely hosed, + * but if the error condition is detected, it won't hurt to give + * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times. + */ + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcerr == 1) { + /* Repeat for some time before giving up. */ + continue; + } else if (hsfsts.hsf_status.flcdone == 0) { + DEBUGOUT("Timeout error - flash cycle did not complete."); + break; + } + } + } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); + + return error; +} + +/****************************************************************************** + * Reads a single byte from the NVM using the ICH8 flash access registers. + * + * hw - pointer to e1000_hw structure + * index - The index of the byte to read. + * data - Pointer to a byte to store the value read. + *****************************************************************************/ +static s32 e1000_read_ich8_byte(struct e1000_hw *hw, u32 index, u8 *data) +{ + s32 status = E1000_SUCCESS; + u16 word = 0; + + status = e1000_read_ich8_data(hw, index, 1, &word); + if (status == E1000_SUCCESS) { + *data = (u8)word; + } + + return status; +} + +/****************************************************************************** + * Writes a single byte to the NVM using the ICH8 flash access registers. + * Performs verification by reading back the value and then going through + * a retry algorithm before giving up. + * + * hw - pointer to e1000_hw structure + * index - The index of the byte to write. + * byte - The byte to write to the NVM. + *****************************************************************************/ +static s32 e1000_verify_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte) +{ + s32 error = E1000_SUCCESS; + s32 program_retries = 0; + + DEBUGOUT2("Byte := %2.2X Offset := %d\n", byte, index); + + error = e1000_write_ich8_byte(hw, index, byte); + + if (error != E1000_SUCCESS) { + for (program_retries = 0; program_retries < 100; program_retries++) { + DEBUGOUT2("Retrying \t Byte := %2.2X Offset := %d\n", byte, index); + error = e1000_write_ich8_byte(hw, index, byte); + udelay(100); + if (error == E1000_SUCCESS) + break; + } + } + + if (program_retries == 100) + error = E1000_ERR_EEPROM; + + return error; +} + +/****************************************************************************** + * Writes a single byte to the NVM using the ICH8 flash access registers. + * + * hw - pointer to e1000_hw structure + * index - The index of the byte to read. + * data - The byte to write to the NVM. + *****************************************************************************/ +static s32 e1000_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 data) +{ + s32 status = E1000_SUCCESS; + u16 word = (u16)data; + + status = e1000_write_ich8_data(hw, index, 1, word); + + return status; +} + +/****************************************************************************** + * Reads a word from the NVM using the ICH8 flash access registers. + * + * hw - pointer to e1000_hw structure + * index - The starting byte index of the word to read. + * data - Pointer to a word to store the value read. + *****************************************************************************/ +static s32 e1000_read_ich8_word(struct e1000_hw *hw, u32 index, u16 *data) +{ + s32 status = E1000_SUCCESS; + status = e1000_read_ich8_data(hw, index, 2, data); + return status; +} + +/****************************************************************************** + * Erases the bank specified. Each bank may be a 4, 8 or 64k block. Banks are 0 + * based. + * + * hw - pointer to e1000_hw structure + * bank - 0 for first bank, 1 for second bank + * + * Note that this function may actually erase as much as 8 or 64 KBytes. The + * amount of NVM used in each bank is a *minimum* of 4 KBytes, but in fact the + * bank size may be 4, 8 or 64 KBytes + *****************************************************************************/ +static s32 e1000_erase_ich8_4k_segment(struct e1000_hw *hw, u32 bank) +{ + union ich8_hws_flash_status hsfsts; + union ich8_hws_flash_ctrl hsflctl; + u32 flash_linear_address; + s32 count = 0; + s32 error = E1000_ERR_EEPROM; + s32 iteration; + s32 sub_sector_size = 0; + s32 bank_size; + s32 j = 0; + s32 error_flag = 0; + + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + + /* Determine HW Sector size: Read BERASE bits of Hw flash Status register */ + /* 00: The Hw sector is 256 bytes, hence we need to erase 16 + * consecutive sectors. The start index for the nth Hw sector can be + * calculated as bank * 4096 + n * 256 + * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector. + * The start index for the nth Hw sector can be calculated + * as bank * 4096 + * 10: The HW sector is 8K bytes + * 11: The Hw sector size is 64K bytes */ + if (hsfsts.hsf_status.berasesz == 0x0) { + /* Hw sector size 256 */ + sub_sector_size = ICH_FLASH_SEG_SIZE_256; + bank_size = ICH_FLASH_SECTOR_SIZE; + iteration = ICH_FLASH_SECTOR_SIZE / ICH_FLASH_SEG_SIZE_256; + } else if (hsfsts.hsf_status.berasesz == 0x1) { + bank_size = ICH_FLASH_SEG_SIZE_4K; + iteration = 1; + } else if (hsfsts.hsf_status.berasesz == 0x3) { + bank_size = ICH_FLASH_SEG_SIZE_64K; + iteration = 1; + } else { + return error; + } + + for (j = 0; j < iteration ; j++) { + do { + count++; + /* Steps */ + error = e1000_ich8_cycle_init(hw); + if (error != E1000_SUCCESS) { + error_flag = 1; + break; + } + + /* Write a value 11 (block Erase) in Flash Cycle field in Hw flash + * Control */ + hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); + hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE; + E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); + + /* Write the last 24 bits of an index within the block into Flash + * Linear address field in Flash Address. This probably needs to + * be calculated here based off the on-chip erase sector size and + * the software bank size (4, 8 or 64 KBytes) */ + flash_linear_address = bank * bank_size + j * sub_sector_size; + flash_linear_address += hw->flash_base_addr; + flash_linear_address &= ICH_FLASH_LINEAR_ADDR_MASK; + + E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); + + error = e1000_ich8_flash_cycle(hw, ICH_FLASH_ERASE_TIMEOUT); + /* Check if FCERR is set to 1. If 1, clear it and try the whole + * sequence a few more times else Done */ + if (error == E1000_SUCCESS) { + break; + } else { + hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); + if (hsfsts.hsf_status.flcerr == 1) { + /* repeat for some time before giving up */ + continue; + } else if (hsfsts.hsf_status.flcdone == 0) { + error_flag = 1; + break; + } + } + } while ((count < ICH_FLASH_CYCLE_REPEAT_COUNT) && !error_flag); + if (error_flag == 1) + break; + } + if (error_flag != 1) + error = E1000_SUCCESS; + return error; +} + +static s32 e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, + u32 cnf_base_addr, + u32 cnf_size) +{ + u32 ret_val = E1000_SUCCESS; + u16 word_addr, reg_data, reg_addr; + u16 i; + + /* cnf_base_addr is in DWORD */ + word_addr = (u16)(cnf_base_addr << 1); + + /* cnf_size is returned in size of dwords */ + for (i = 0; i < cnf_size; i++) { + ret_val = e1000_read_eeprom(hw, (word_addr + i*2), 1, ®_data); + if (ret_val) + return ret_val; + + ret_val = e1000_read_eeprom(hw, (word_addr + i*2 + 1), 1, ®_addr); + if (ret_val) + return ret_val; + + ret_val = e1000_get_software_flag(hw); + if (ret_val != E1000_SUCCESS) + return ret_val; + + ret_val = e1000_write_phy_reg_ex(hw, (u32)reg_addr, reg_data); + + e1000_release_software_flag(hw); + } + + return ret_val; +} + + +/****************************************************************************** + * This function initializes the PHY from the NVM on ICH8 platforms. This + * is needed due to an issue where the NVM configuration is not properly + * autoloaded after power transitions. Therefore, after each PHY reset, we + * will load the configuration data out of the NVM manually. + * + * hw: Struct containing variables accessed by shared code + *****************************************************************************/ +static s32 e1000_init_lcd_from_nvm(struct e1000_hw *hw) +{ + u32 reg_data, cnf_base_addr, cnf_size, ret_val, loop; + + if (hw->phy_type != e1000_phy_igp_3) + return E1000_SUCCESS; + + /* Check if SW needs configure the PHY */ + reg_data = er32(FEXTNVM); + if (!(reg_data & FEXTNVM_SW_CONFIG)) + return E1000_SUCCESS; + + /* Wait for basic configuration completes before proceeding*/ + loop = 0; + do { + reg_data = er32(STATUS) & E1000_STATUS_LAN_INIT_DONE; + udelay(100); + loop++; + } while ((!reg_data) && (loop < 50)); + + /* Clear the Init Done bit for the next init event */ + reg_data = er32(STATUS); + reg_data &= ~E1000_STATUS_LAN_INIT_DONE; + ew32(STATUS, reg_data); + + /* Make sure HW does not configure LCD from PHY extended configuration + before SW configuration */ + reg_data = er32(EXTCNF_CTRL); + if ((reg_data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) == 0x0000) { + reg_data = er32(EXTCNF_SIZE); + cnf_size = reg_data & E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH; + cnf_size >>= 16; + if (cnf_size) { + reg_data = er32(EXTCNF_CTRL); + cnf_base_addr = reg_data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER; + /* cnf_base_addr is in DWORD */ + cnf_base_addr >>= 16; + + /* Configure LCD from extended configuration region. */ + ret_val = e1000_init_lcd_from_nvm_config_region(hw, cnf_base_addr, + cnf_size); + if (ret_val) + return ret_val; + } + } + + return E1000_SUCCESS; +} + diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_hw-2.6.31-orig.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_hw-2.6.31-orig.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,3406 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* e1000_hw.h + * Structures, enums, and macros for the MAC + */ + +#ifndef _E1000_HW_H_ +#define _E1000_HW_H_ + +#include "e1000_osdep.h" + + +/* Forward declarations of structures used by the shared code */ +struct e1000_hw; +struct e1000_hw_stats; + +/* Enumerated types specific to the e1000 hardware */ +/* Media Access Controlers */ +typedef enum { + e1000_undefined = 0, + e1000_82542_rev2_0, + e1000_82542_rev2_1, + e1000_82543, + e1000_82544, + e1000_82540, + e1000_82545, + e1000_82545_rev_3, + e1000_82546, + e1000_82546_rev_3, + e1000_82541, + e1000_82541_rev_2, + e1000_82547, + e1000_82547_rev_2, + e1000_82571, + e1000_82572, + e1000_82573, + e1000_80003es2lan, + e1000_ich8lan, + e1000_num_macs +} e1000_mac_type; + +typedef enum { + e1000_eeprom_uninitialized = 0, + e1000_eeprom_spi, + e1000_eeprom_microwire, + e1000_eeprom_flash, + e1000_eeprom_ich8, + e1000_eeprom_none, /* No NVM support */ + e1000_num_eeprom_types +} e1000_eeprom_type; + +/* Media Types */ +typedef enum { + e1000_media_type_copper = 0, + e1000_media_type_fiber = 1, + e1000_media_type_internal_serdes = 2, + e1000_num_media_types +} e1000_media_type; + +typedef enum { + e1000_10_half = 0, + e1000_10_full = 1, + e1000_100_half = 2, + e1000_100_full = 3 +} e1000_speed_duplex_type; + +/* Flow Control Settings */ +typedef enum { + E1000_FC_NONE = 0, + E1000_FC_RX_PAUSE = 1, + E1000_FC_TX_PAUSE = 2, + E1000_FC_FULL = 3, + E1000_FC_DEFAULT = 0xFF +} e1000_fc_type; + +struct e1000_shadow_ram { + u16 eeprom_word; + bool modified; +}; + +/* PCI bus types */ +typedef enum { + e1000_bus_type_unknown = 0, + e1000_bus_type_pci, + e1000_bus_type_pcix, + e1000_bus_type_pci_express, + e1000_bus_type_reserved +} e1000_bus_type; + +/* PCI bus speeds */ +typedef enum { + e1000_bus_speed_unknown = 0, + e1000_bus_speed_33, + e1000_bus_speed_66, + e1000_bus_speed_100, + e1000_bus_speed_120, + e1000_bus_speed_133, + e1000_bus_speed_2500, + e1000_bus_speed_reserved +} e1000_bus_speed; + +/* PCI bus widths */ +typedef enum { + e1000_bus_width_unknown = 0, + /* These PCIe values should literally match the possible return values + * from config space */ + e1000_bus_width_pciex_1 = 1, + e1000_bus_width_pciex_2 = 2, + e1000_bus_width_pciex_4 = 4, + e1000_bus_width_32, + e1000_bus_width_64, + e1000_bus_width_reserved +} e1000_bus_width; + +/* PHY status info structure and supporting enums */ +typedef enum { + e1000_cable_length_50 = 0, + e1000_cable_length_50_80, + e1000_cable_length_80_110, + e1000_cable_length_110_140, + e1000_cable_length_140, + e1000_cable_length_undefined = 0xFF +} e1000_cable_length; + +typedef enum { + e1000_gg_cable_length_60 = 0, + e1000_gg_cable_length_60_115 = 1, + e1000_gg_cable_length_115_150 = 2, + e1000_gg_cable_length_150 = 4 +} e1000_gg_cable_length; + +typedef enum { + e1000_igp_cable_length_10 = 10, + e1000_igp_cable_length_20 = 20, + e1000_igp_cable_length_30 = 30, + e1000_igp_cable_length_40 = 40, + e1000_igp_cable_length_50 = 50, + e1000_igp_cable_length_60 = 60, + e1000_igp_cable_length_70 = 70, + e1000_igp_cable_length_80 = 80, + e1000_igp_cable_length_90 = 90, + e1000_igp_cable_length_100 = 100, + e1000_igp_cable_length_110 = 110, + e1000_igp_cable_length_115 = 115, + e1000_igp_cable_length_120 = 120, + e1000_igp_cable_length_130 = 130, + e1000_igp_cable_length_140 = 140, + e1000_igp_cable_length_150 = 150, + e1000_igp_cable_length_160 = 160, + e1000_igp_cable_length_170 = 170, + e1000_igp_cable_length_180 = 180 +} e1000_igp_cable_length; + +typedef enum { + e1000_10bt_ext_dist_enable_normal = 0, + e1000_10bt_ext_dist_enable_lower, + e1000_10bt_ext_dist_enable_undefined = 0xFF +} e1000_10bt_ext_dist_enable; + +typedef enum { + e1000_rev_polarity_normal = 0, + e1000_rev_polarity_reversed, + e1000_rev_polarity_undefined = 0xFF +} e1000_rev_polarity; + +typedef enum { + e1000_downshift_normal = 0, + e1000_downshift_activated, + e1000_downshift_undefined = 0xFF +} e1000_downshift; + +typedef enum { + e1000_smart_speed_default = 0, + e1000_smart_speed_on, + e1000_smart_speed_off +} e1000_smart_speed; + +typedef enum { + e1000_polarity_reversal_enabled = 0, + e1000_polarity_reversal_disabled, + e1000_polarity_reversal_undefined = 0xFF +} e1000_polarity_reversal; + +typedef enum { + e1000_auto_x_mode_manual_mdi = 0, + e1000_auto_x_mode_manual_mdix, + e1000_auto_x_mode_auto1, + e1000_auto_x_mode_auto2, + e1000_auto_x_mode_undefined = 0xFF +} e1000_auto_x_mode; + +typedef enum { + e1000_1000t_rx_status_not_ok = 0, + e1000_1000t_rx_status_ok, + e1000_1000t_rx_status_undefined = 0xFF +} e1000_1000t_rx_status; + +typedef enum { + e1000_phy_m88 = 0, + e1000_phy_igp, + e1000_phy_igp_2, + e1000_phy_gg82563, + e1000_phy_igp_3, + e1000_phy_ife, + e1000_phy_undefined = 0xFF +} e1000_phy_type; + +typedef enum { + e1000_ms_hw_default = 0, + e1000_ms_force_master, + e1000_ms_force_slave, + e1000_ms_auto +} e1000_ms_type; + +typedef enum { + e1000_ffe_config_enabled = 0, + e1000_ffe_config_active, + e1000_ffe_config_blocked +} e1000_ffe_config; + +typedef enum { + e1000_dsp_config_disabled = 0, + e1000_dsp_config_enabled, + e1000_dsp_config_activated, + e1000_dsp_config_undefined = 0xFF +} e1000_dsp_config; + +struct e1000_phy_info { + e1000_cable_length cable_length; + e1000_10bt_ext_dist_enable extended_10bt_distance; + e1000_rev_polarity cable_polarity; + e1000_downshift downshift; + e1000_polarity_reversal polarity_correction; + e1000_auto_x_mode mdix_mode; + e1000_1000t_rx_status local_rx; + e1000_1000t_rx_status remote_rx; +}; + +struct e1000_phy_stats { + u32 idle_errors; + u32 receive_errors; +}; + +struct e1000_eeprom_info { + e1000_eeprom_type type; + u16 word_size; + u16 opcode_bits; + u16 address_bits; + u16 delay_usec; + u16 page_size; + bool use_eerd; + bool use_eewr; +}; + +/* Flex ASF Information */ +#define E1000_HOST_IF_MAX_SIZE 2048 + +typedef enum { + e1000_byte_align = 0, + e1000_word_align = 1, + e1000_dword_align = 2 +} e1000_align_type; + + + +/* Error Codes */ +#define E1000_SUCCESS 0 +#define E1000_ERR_EEPROM 1 +#define E1000_ERR_PHY 2 +#define E1000_ERR_CONFIG 3 +#define E1000_ERR_PARAM 4 +#define E1000_ERR_MAC_TYPE 5 +#define E1000_ERR_PHY_TYPE 6 +#define E1000_ERR_RESET 9 +#define E1000_ERR_MASTER_REQUESTS_PENDING 10 +#define E1000_ERR_HOST_INTERFACE_COMMAND 11 +#define E1000_BLK_PHY_RESET 12 +#define E1000_ERR_SWFW_SYNC 13 + +#define E1000_BYTE_SWAP_WORD(_value) ((((_value) & 0x00ff) << 8) | \ + (((_value) & 0xff00) >> 8)) + +/* Function prototypes */ +/* Initialization */ +s32 e1000_reset_hw(struct e1000_hw *hw); +s32 e1000_init_hw(struct e1000_hw *hw); +s32 e1000_set_mac_type(struct e1000_hw *hw); +void e1000_set_media_type(struct e1000_hw *hw); + +/* Link Configuration */ +s32 e1000_setup_link(struct e1000_hw *hw); +s32 e1000_phy_setup_autoneg(struct e1000_hw *hw); +void e1000_config_collision_dist(struct e1000_hw *hw); +s32 e1000_check_for_link(struct e1000_hw *hw); +s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed, u16 *duplex); +s32 e1000_force_mac_fc(struct e1000_hw *hw); + +/* PHY */ +s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 *phy_data); +s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 data); +s32 e1000_phy_hw_reset(struct e1000_hw *hw); +s32 e1000_phy_reset(struct e1000_hw *hw); +s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); +s32 e1000_validate_mdi_setting(struct e1000_hw *hw); + +void e1000_phy_powerdown_workaround(struct e1000_hw *hw); + +/* EEPROM Functions */ +s32 e1000_init_eeprom_params(struct e1000_hw *hw); + +/* MNG HOST IF functions */ +u32 e1000_enable_mng_pass_thru(struct e1000_hw *hw); + +#define E1000_MNG_DHCP_TX_PAYLOAD_CMD 64 +#define E1000_HI_MAX_MNG_DATA_LENGTH 0x6F8 /* Host Interface data length */ + +#define E1000_MNG_DHCP_COMMAND_TIMEOUT 10 /* Time in ms to process MNG command */ +#define E1000_MNG_DHCP_COOKIE_OFFSET 0x6F0 /* Cookie offset */ +#define E1000_MNG_DHCP_COOKIE_LENGTH 0x10 /* Cookie length */ +#define E1000_MNG_IAMT_MODE 0x3 +#define E1000_MNG_ICH_IAMT_MODE 0x2 +#define E1000_IAMT_SIGNATURE 0x544D4149 /* Intel(R) Active Management Technology signature */ + +#define E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT 0x1 /* DHCP parsing enabled */ +#define E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT 0x2 /* DHCP parsing enabled */ +#define E1000_VFTA_ENTRY_SHIFT 0x5 +#define E1000_VFTA_ENTRY_MASK 0x7F +#define E1000_VFTA_ENTRY_BIT_SHIFT_MASK 0x1F + +struct e1000_host_mng_command_header { + u8 command_id; + u8 checksum; + u16 reserved1; + u16 reserved2; + u16 command_length; +}; + +struct e1000_host_mng_command_info { + struct e1000_host_mng_command_header command_header; /* Command Head/Command Result Head has 4 bytes */ + u8 command_data[E1000_HI_MAX_MNG_DATA_LENGTH]; /* Command data can length 0..0x658*/ +}; +#ifdef __BIG_ENDIAN +struct e1000_host_mng_dhcp_cookie{ + u32 signature; + u16 vlan_id; + u8 reserved0; + u8 status; + u32 reserved1; + u8 checksum; + u8 reserved3; + u16 reserved2; +}; +#else +struct e1000_host_mng_dhcp_cookie{ + u32 signature; + u8 status; + u8 reserved0; + u16 vlan_id; + u32 reserved1; + u16 reserved2; + u8 reserved3; + u8 checksum; +}; +#endif + +s32 e1000_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, + u16 length); +bool e1000_check_mng_mode(struct e1000_hw *hw); +bool e1000_enable_tx_pkt_filtering(struct e1000_hw *hw); +s32 e1000_read_eeprom(struct e1000_hw *hw, u16 reg, u16 words, u16 *data); +s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw); +s32 e1000_update_eeprom_checksum(struct e1000_hw *hw); +s32 e1000_write_eeprom(struct e1000_hw *hw, u16 reg, u16 words, u16 *data); +s32 e1000_read_mac_addr(struct e1000_hw * hw); + +/* Filters (multicast, vlan, receive) */ +u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 * mc_addr); +void e1000_mta_set(struct e1000_hw *hw, u32 hash_value); +void e1000_rar_set(struct e1000_hw *hw, u8 * mc_addr, u32 rar_index); +void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value); + +/* LED functions */ +s32 e1000_setup_led(struct e1000_hw *hw); +s32 e1000_cleanup_led(struct e1000_hw *hw); +s32 e1000_led_on(struct e1000_hw *hw); +s32 e1000_led_off(struct e1000_hw *hw); +s32 e1000_blink_led_start(struct e1000_hw *hw); + +/* Adaptive IFS Functions */ + +/* Everything else */ +void e1000_reset_adaptive(struct e1000_hw *hw); +void e1000_update_adaptive(struct e1000_hw *hw); +void e1000_tbi_adjust_stats(struct e1000_hw *hw, struct e1000_hw_stats *stats, u32 frame_len, u8 * mac_addr); +void e1000_get_bus_info(struct e1000_hw *hw); +void e1000_pci_set_mwi(struct e1000_hw *hw); +void e1000_pci_clear_mwi(struct e1000_hw *hw); +s32 e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value); +void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc); +int e1000_pcix_get_mmrbc(struct e1000_hw *hw); +/* Port I/O is only supported on 82544 and newer */ +void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value); +s32 e1000_disable_pciex_master(struct e1000_hw *hw); +s32 e1000_check_phy_reset_block(struct e1000_hw *hw); + + +#define E1000_READ_REG_IO(a, reg) \ + e1000_read_reg_io((a), E1000_##reg) +#define E1000_WRITE_REG_IO(a, reg, val) \ + e1000_write_reg_io((a), E1000_##reg, val) + +/* PCI Device IDs */ +#define E1000_DEV_ID_82542 0x1000 +#define E1000_DEV_ID_82543GC_FIBER 0x1001 +#define E1000_DEV_ID_82543GC_COPPER 0x1004 +#define E1000_DEV_ID_82544EI_COPPER 0x1008 +#define E1000_DEV_ID_82544EI_FIBER 0x1009 +#define E1000_DEV_ID_82544GC_COPPER 0x100C +#define E1000_DEV_ID_82544GC_LOM 0x100D +#define E1000_DEV_ID_82540EM 0x100E +#define E1000_DEV_ID_82540EM_LOM 0x1015 +#define E1000_DEV_ID_82540EP_LOM 0x1016 +#define E1000_DEV_ID_82540EP 0x1017 +#define E1000_DEV_ID_82540EP_LP 0x101E +#define E1000_DEV_ID_82545EM_COPPER 0x100F +#define E1000_DEV_ID_82545EM_FIBER 0x1011 +#define E1000_DEV_ID_82545GM_COPPER 0x1026 +#define E1000_DEV_ID_82545GM_FIBER 0x1027 +#define E1000_DEV_ID_82545GM_SERDES 0x1028 +#define E1000_DEV_ID_82546EB_COPPER 0x1010 +#define E1000_DEV_ID_82546EB_FIBER 0x1012 +#define E1000_DEV_ID_82546EB_QUAD_COPPER 0x101D +#define E1000_DEV_ID_82541EI 0x1013 +#define E1000_DEV_ID_82541EI_MOBILE 0x1018 +#define E1000_DEV_ID_82541ER_LOM 0x1014 +#define E1000_DEV_ID_82541ER 0x1078 +#define E1000_DEV_ID_82547GI 0x1075 +#define E1000_DEV_ID_82541GI 0x1076 +#define E1000_DEV_ID_82541GI_MOBILE 0x1077 +#define E1000_DEV_ID_82541GI_LF 0x107C +#define E1000_DEV_ID_82546GB_COPPER 0x1079 +#define E1000_DEV_ID_82546GB_FIBER 0x107A +#define E1000_DEV_ID_82546GB_SERDES 0x107B +#define E1000_DEV_ID_82546GB_PCIE 0x108A +#define E1000_DEV_ID_82546GB_QUAD_COPPER 0x1099 +#define E1000_DEV_ID_82547EI 0x1019 +#define E1000_DEV_ID_82547EI_MOBILE 0x101A +#define E1000_DEV_ID_82571EB_COPPER 0x105E +#define E1000_DEV_ID_82571EB_FIBER 0x105F +#define E1000_DEV_ID_82571EB_SERDES 0x1060 +#define E1000_DEV_ID_82571EB_QUAD_COPPER 0x10A4 +#define E1000_DEV_ID_82571PT_QUAD_COPPER 0x10D5 +#define E1000_DEV_ID_82571EB_QUAD_FIBER 0x10A5 +#define E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE 0x10BC +#define E1000_DEV_ID_82571EB_SERDES_DUAL 0x10D9 +#define E1000_DEV_ID_82571EB_SERDES_QUAD 0x10DA +#define E1000_DEV_ID_82572EI_COPPER 0x107D +#define E1000_DEV_ID_82572EI_FIBER 0x107E +#define E1000_DEV_ID_82572EI_SERDES 0x107F +#define E1000_DEV_ID_82572EI 0x10B9 +#define E1000_DEV_ID_82573E 0x108B +#define E1000_DEV_ID_82573E_IAMT 0x108C +#define E1000_DEV_ID_82573L 0x109A +#define E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3 0x10B5 +#define E1000_DEV_ID_80003ES2LAN_COPPER_DPT 0x1096 +#define E1000_DEV_ID_80003ES2LAN_SERDES_DPT 0x1098 +#define E1000_DEV_ID_80003ES2LAN_COPPER_SPT 0x10BA +#define E1000_DEV_ID_80003ES2LAN_SERDES_SPT 0x10BB + +#define E1000_DEV_ID_ICH8_IGP_M_AMT 0x1049 +#define E1000_DEV_ID_ICH8_IGP_AMT 0x104A +#define E1000_DEV_ID_ICH8_IGP_C 0x104B +#define E1000_DEV_ID_ICH8_IFE 0x104C +#define E1000_DEV_ID_ICH8_IFE_GT 0x10C4 +#define E1000_DEV_ID_ICH8_IFE_G 0x10C5 +#define E1000_DEV_ID_ICH8_IGP_M 0x104D + + +#define NODE_ADDRESS_SIZE 6 +#define ETH_LENGTH_OF_ADDRESS 6 + +/* MAC decode size is 128K - This is the size of BAR0 */ +#define MAC_DECODE_SIZE (128 * 1024) + +#define E1000_82542_2_0_REV_ID 2 +#define E1000_82542_2_1_REV_ID 3 +#define E1000_REVISION_0 0 +#define E1000_REVISION_1 1 +#define E1000_REVISION_2 2 +#define E1000_REVISION_3 3 + +#define SPEED_10 10 +#define SPEED_100 100 +#define SPEED_1000 1000 +#define HALF_DUPLEX 1 +#define FULL_DUPLEX 2 + +/* The sizes (in bytes) of a ethernet packet */ +#define ENET_HEADER_SIZE 14 +#define MAXIMUM_ETHERNET_FRAME_SIZE 1518 /* With FCS */ +#define MINIMUM_ETHERNET_FRAME_SIZE 64 /* With FCS */ +#define ETHERNET_FCS_SIZE 4 +#define MAXIMUM_ETHERNET_PACKET_SIZE \ + (MAXIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE) +#define MINIMUM_ETHERNET_PACKET_SIZE \ + (MINIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE) +#define CRC_LENGTH ETHERNET_FCS_SIZE +#define MAX_JUMBO_FRAME_SIZE 0x3F00 + + +/* 802.1q VLAN Packet Sizes */ +#define VLAN_TAG_SIZE 4 /* 802.3ac tag (not DMAed) */ + +/* Ethertype field values */ +#define ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.3ac packet */ +#define ETHERNET_IP_TYPE 0x0800 /* IP packets */ +#define ETHERNET_ARP_TYPE 0x0806 /* Address Resolution Protocol (ARP) */ + +/* Packet Header defines */ +#define IP_PROTOCOL_TCP 6 +#define IP_PROTOCOL_UDP 0x11 + +/* This defines the bits that are set in the Interrupt Mask + * Set/Read Register. Each bit is documented below: + * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0) + * o RXSEQ = Receive Sequence Error + */ +#define POLL_IMS_ENABLE_MASK ( \ + E1000_IMS_RXDMT0 | \ + E1000_IMS_RXSEQ) + +/* This defines the bits that are set in the Interrupt Mask + * Set/Read Register. Each bit is documented below: + * o RXT0 = Receiver Timer Interrupt (ring 0) + * o TXDW = Transmit Descriptor Written Back + * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0) + * o RXSEQ = Receive Sequence Error + * o LSC = Link Status Change + */ +#define IMS_ENABLE_MASK ( \ + E1000_IMS_RXT0 | \ + E1000_IMS_TXDW | \ + E1000_IMS_RXDMT0 | \ + E1000_IMS_RXSEQ | \ + E1000_IMS_LSC) + +/* Additional interrupts need to be handled for e1000_ich8lan: + DSW = The FW changed the status of the DISSW bit in FWSM + PHYINT = The LAN connected device generates an interrupt + EPRST = Manageability reset event */ +#define IMS_ICH8LAN_ENABLE_MASK (\ + E1000_IMS_DSW | \ + E1000_IMS_PHYINT | \ + E1000_IMS_EPRST) + +/* Number of high/low register pairs in the RAR. The RAR (Receive Address + * Registers) holds the directed and multicast addresses that we monitor. We + * reserve one of these spots for our directed address, allowing us room for + * E1000_RAR_ENTRIES - 1 multicast addresses. + */ +#define E1000_RAR_ENTRIES 15 + +#define E1000_RAR_ENTRIES_ICH8LAN 6 + +#define MIN_NUMBER_OF_DESCRIPTORS 8 +#define MAX_NUMBER_OF_DESCRIPTORS 0xFFF8 + +/* Receive Descriptor */ +struct e1000_rx_desc { + __le64 buffer_addr; /* Address of the descriptor's data buffer */ + __le16 length; /* Length of data DMAed into data buffer */ + __le16 csum; /* Packet checksum */ + u8 status; /* Descriptor status */ + u8 errors; /* Descriptor Errors */ + __le16 special; +}; + +/* Receive Descriptor - Extended */ +union e1000_rx_desc_extended { + struct { + __le64 buffer_addr; + __le64 reserved; + } read; + struct { + struct { + __le32 mrq; /* Multiple Rx Queues */ + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length; + __le16 vlan; /* VLAN tag */ + } upper; + } wb; /* writeback */ +}; + +#define MAX_PS_BUFFERS 4 +/* Receive Descriptor - Packet Split */ +union e1000_rx_desc_packet_split { + struct { + /* one buffer for protocol header(s), three data buffers */ + __le64 buffer_addr[MAX_PS_BUFFERS]; + } read; + struct { + struct { + __le32 mrq; /* Multiple Rx Queues */ + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length0; /* length of buffer 0 */ + __le16 vlan; /* VLAN tag */ + } middle; + struct { + __le16 header_status; + __le16 length[3]; /* length of buffers 1-3 */ + } upper; + __le64 reserved; + } wb; /* writeback */ +}; + +/* Receive Decriptor bit definitions */ +#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */ +#define E1000_RXD_STAT_EOP 0x02 /* End of Packet */ +#define E1000_RXD_STAT_IXSM 0x04 /* Ignore checksum */ +#define E1000_RXD_STAT_VP 0x08 /* IEEE VLAN Packet */ +#define E1000_RXD_STAT_UDPCS 0x10 /* UDP xsum caculated */ +#define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */ +#define E1000_RXD_STAT_IPCS 0x40 /* IP xsum calculated */ +#define E1000_RXD_STAT_PIF 0x80 /* passed in-exact filter */ +#define E1000_RXD_STAT_IPIDV 0x200 /* IP identification valid */ +#define E1000_RXD_STAT_UDPV 0x400 /* Valid UDP checksum */ +#define E1000_RXD_STAT_ACK 0x8000 /* ACK Packet indication */ +#define E1000_RXD_ERR_CE 0x01 /* CRC Error */ +#define E1000_RXD_ERR_SE 0x02 /* Symbol Error */ +#define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */ +#define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */ +#define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */ +#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */ +#define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */ +#define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */ +#define E1000_RXD_SPC_PRI_MASK 0xE000 /* Priority is in upper 3 bits */ +#define E1000_RXD_SPC_PRI_SHIFT 13 +#define E1000_RXD_SPC_CFI_MASK 0x1000 /* CFI is bit 12 */ +#define E1000_RXD_SPC_CFI_SHIFT 12 + +#define E1000_RXDEXT_STATERR_CE 0x01000000 +#define E1000_RXDEXT_STATERR_SE 0x02000000 +#define E1000_RXDEXT_STATERR_SEQ 0x04000000 +#define E1000_RXDEXT_STATERR_CXE 0x10000000 +#define E1000_RXDEXT_STATERR_TCPE 0x20000000 +#define E1000_RXDEXT_STATERR_IPE 0x40000000 +#define E1000_RXDEXT_STATERR_RXE 0x80000000 + +#define E1000_RXDPS_HDRSTAT_HDRSP 0x00008000 +#define E1000_RXDPS_HDRSTAT_HDRLEN_MASK 0x000003FF + +/* mask to determine if packets should be dropped due to frame errors */ +#define E1000_RXD_ERR_FRAME_ERR_MASK ( \ + E1000_RXD_ERR_CE | \ + E1000_RXD_ERR_SE | \ + E1000_RXD_ERR_SEQ | \ + E1000_RXD_ERR_CXE | \ + E1000_RXD_ERR_RXE) + + +/* Same mask, but for extended and packet split descriptors */ +#define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \ + E1000_RXDEXT_STATERR_CE | \ + E1000_RXDEXT_STATERR_SE | \ + E1000_RXDEXT_STATERR_SEQ | \ + E1000_RXDEXT_STATERR_CXE | \ + E1000_RXDEXT_STATERR_RXE) + + +/* Transmit Descriptor */ +struct e1000_tx_desc { + __le64 buffer_addr; /* Address of the descriptor's data buffer */ + union { + __le32 data; + struct { + __le16 length; /* Data buffer length */ + u8 cso; /* Checksum offset */ + u8 cmd; /* Descriptor control */ + } flags; + } lower; + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 css; /* Checksum start */ + __le16 special; + } fields; + } upper; +}; + +/* Transmit Descriptor bit definitions */ +#define E1000_TXD_DTYP_D 0x00100000 /* Data Descriptor */ +#define E1000_TXD_DTYP_C 0x00000000 /* Context Descriptor */ +#define E1000_TXD_POPTS_IXSM 0x01 /* Insert IP checksum */ +#define E1000_TXD_POPTS_TXSM 0x02 /* Insert TCP/UDP checksum */ +#define E1000_TXD_CMD_EOP 0x01000000 /* End of Packet */ +#define E1000_TXD_CMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */ +#define E1000_TXD_CMD_IC 0x04000000 /* Insert Checksum */ +#define E1000_TXD_CMD_RS 0x08000000 /* Report Status */ +#define E1000_TXD_CMD_RPS 0x10000000 /* Report Packet Sent */ +#define E1000_TXD_CMD_DEXT 0x20000000 /* Descriptor extension (0 = legacy) */ +#define E1000_TXD_CMD_VLE 0x40000000 /* Add VLAN tag */ +#define E1000_TXD_CMD_IDE 0x80000000 /* Enable Tidv register */ +#define E1000_TXD_STAT_DD 0x00000001 /* Descriptor Done */ +#define E1000_TXD_STAT_EC 0x00000002 /* Excess Collisions */ +#define E1000_TXD_STAT_LC 0x00000004 /* Late Collisions */ +#define E1000_TXD_STAT_TU 0x00000008 /* Transmit underrun */ +#define E1000_TXD_CMD_TCP 0x01000000 /* TCP packet */ +#define E1000_TXD_CMD_IP 0x02000000 /* IP packet */ +#define E1000_TXD_CMD_TSE 0x04000000 /* TCP Seg enable */ +#define E1000_TXD_STAT_TC 0x00000004 /* Tx Underrun */ + +/* Offload Context Descriptor */ +struct e1000_context_desc { + union { + __le32 ip_config; + struct { + u8 ipcss; /* IP checksum start */ + u8 ipcso; /* IP checksum offset */ + __le16 ipcse; /* IP checksum end */ + } ip_fields; + } lower_setup; + union { + __le32 tcp_config; + struct { + u8 tucss; /* TCP checksum start */ + u8 tucso; /* TCP checksum offset */ + __le16 tucse; /* TCP checksum end */ + } tcp_fields; + } upper_setup; + __le32 cmd_and_length; /* */ + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 hdr_len; /* Header length */ + __le16 mss; /* Maximum segment size */ + } fields; + } tcp_seg_setup; +}; + +/* Offload data descriptor */ +struct e1000_data_desc { + __le64 buffer_addr; /* Address of the descriptor's buffer address */ + union { + __le32 data; + struct { + __le16 length; /* Data buffer length */ + u8 typ_len_ext; /* */ + u8 cmd; /* */ + } flags; + } lower; + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 popts; /* Packet Options */ + __le16 special; /* */ + } fields; + } upper; +}; + +/* Filters */ +#define E1000_NUM_UNICAST 16 /* Unicast filter entries */ +#define E1000_MC_TBL_SIZE 128 /* Multicast Filter Table (4096 bits) */ +#define E1000_VLAN_FILTER_TBL_SIZE 128 /* VLAN Filter Table (4096 bits) */ + +#define E1000_NUM_UNICAST_ICH8LAN 7 +#define E1000_MC_TBL_SIZE_ICH8LAN 32 + + +/* Receive Address Register */ +struct e1000_rar { + volatile __le32 low; /* receive address low */ + volatile __le32 high; /* receive address high */ +}; + +/* Number of entries in the Multicast Table Array (MTA). */ +#define E1000_NUM_MTA_REGISTERS 128 +#define E1000_NUM_MTA_REGISTERS_ICH8LAN 32 + +/* IPv4 Address Table Entry */ +struct e1000_ipv4_at_entry { + volatile u32 ipv4_addr; /* IP Address (RW) */ + volatile u32 reserved; +}; + +/* Four wakeup IP addresses are supported */ +#define E1000_WAKEUP_IP_ADDRESS_COUNT_MAX 4 +#define E1000_IP4AT_SIZE E1000_WAKEUP_IP_ADDRESS_COUNT_MAX +#define E1000_IP4AT_SIZE_ICH8LAN 3 +#define E1000_IP6AT_SIZE 1 + +/* IPv6 Address Table Entry */ +struct e1000_ipv6_at_entry { + volatile u8 ipv6_addr[16]; +}; + +/* Flexible Filter Length Table Entry */ +struct e1000_fflt_entry { + volatile u32 length; /* Flexible Filter Length (RW) */ + volatile u32 reserved; +}; + +/* Flexible Filter Mask Table Entry */ +struct e1000_ffmt_entry { + volatile u32 mask; /* Flexible Filter Mask (RW) */ + volatile u32 reserved; +}; + +/* Flexible Filter Value Table Entry */ +struct e1000_ffvt_entry { + volatile u32 value; /* Flexible Filter Value (RW) */ + volatile u32 reserved; +}; + +/* Four Flexible Filters are supported */ +#define E1000_FLEXIBLE_FILTER_COUNT_MAX 4 + +/* Each Flexible Filter is at most 128 (0x80) bytes in length */ +#define E1000_FLEXIBLE_FILTER_SIZE_MAX 128 + +#define E1000_FFLT_SIZE E1000_FLEXIBLE_FILTER_COUNT_MAX +#define E1000_FFMT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX +#define E1000_FFVT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX + +#define E1000_DISABLE_SERDES_LOOPBACK 0x0400 + +/* Register Set. (82543, 82544) + * + * Registers are defined to be 32 bits and should be accessed as 32 bit values. + * These registers are physically located on the NIC, but are mapped into the + * host memory address space. + * + * RW - register is both readable and writable + * RO - register is read only + * WO - register is write only + * R/clr - register is read only and is cleared when read + * A - register array + */ +#define E1000_CTRL 0x00000 /* Device Control - RW */ +#define E1000_CTRL_DUP 0x00004 /* Device Control Duplicate (Shadow) - RW */ +#define E1000_STATUS 0x00008 /* Device Status - RO */ +#define E1000_EECD 0x00010 /* EEPROM/Flash Control - RW */ +#define E1000_EERD 0x00014 /* EEPROM Read - RW */ +#define E1000_CTRL_EXT 0x00018 /* Extended Device Control - RW */ +#define E1000_FLA 0x0001C /* Flash Access - RW */ +#define E1000_MDIC 0x00020 /* MDI Control - RW */ +#define E1000_SCTL 0x00024 /* SerDes Control - RW */ +#define E1000_FEXTNVM 0x00028 /* Future Extended NVM register */ +#define E1000_FCAL 0x00028 /* Flow Control Address Low - RW */ +#define E1000_FCAH 0x0002C /* Flow Control Address High -RW */ +#define E1000_FCT 0x00030 /* Flow Control Type - RW */ +#define E1000_VET 0x00038 /* VLAN Ether Type - RW */ +#define E1000_ICR 0x000C0 /* Interrupt Cause Read - R/clr */ +#define E1000_ITR 0x000C4 /* Interrupt Throttling Rate - RW */ +#define E1000_ICS 0x000C8 /* Interrupt Cause Set - WO */ +#define E1000_IMS 0x000D0 /* Interrupt Mask Set - RW */ +#define E1000_IMC 0x000D8 /* Interrupt Mask Clear - WO */ +#define E1000_IAM 0x000E0 /* Interrupt Acknowledge Auto Mask */ +#define E1000_RCTL 0x00100 /* RX Control - RW */ +#define E1000_RDTR1 0x02820 /* RX Delay Timer (1) - RW */ +#define E1000_RDBAL1 0x02900 /* RX Descriptor Base Address Low (1) - RW */ +#define E1000_RDBAH1 0x02904 /* RX Descriptor Base Address High (1) - RW */ +#define E1000_RDLEN1 0x02908 /* RX Descriptor Length (1) - RW */ +#define E1000_RDH1 0x02910 /* RX Descriptor Head (1) - RW */ +#define E1000_RDT1 0x02918 /* RX Descriptor Tail (1) - RW */ +#define E1000_FCTTV 0x00170 /* Flow Control Transmit Timer Value - RW */ +#define E1000_TXCW 0x00178 /* TX Configuration Word - RW */ +#define E1000_RXCW 0x00180 /* RX Configuration Word - RO */ +#define E1000_TCTL 0x00400 /* TX Control - RW */ +#define E1000_TCTL_EXT 0x00404 /* Extended TX Control - RW */ +#define E1000_TIPG 0x00410 /* TX Inter-packet gap -RW */ +#define E1000_TBT 0x00448 /* TX Burst Timer - RW */ +#define E1000_AIT 0x00458 /* Adaptive Interframe Spacing Throttle - RW */ +#define E1000_LEDCTL 0x00E00 /* LED Control - RW */ +#define E1000_EXTCNF_CTRL 0x00F00 /* Extended Configuration Control */ +#define E1000_EXTCNF_SIZE 0x00F08 /* Extended Configuration Size */ +#define E1000_PHY_CTRL 0x00F10 /* PHY Control Register in CSR */ +#define FEXTNVM_SW_CONFIG 0x0001 +#define E1000_PBA 0x01000 /* Packet Buffer Allocation - RW */ +#define E1000_PBS 0x01008 /* Packet Buffer Size */ +#define E1000_EEMNGCTL 0x01010 /* MNG EEprom Control */ +#define E1000_FLASH_UPDATES 1000 +#define E1000_EEARBC 0x01024 /* EEPROM Auto Read Bus Control */ +#define E1000_FLASHT 0x01028 /* FLASH Timer Register */ +#define E1000_EEWR 0x0102C /* EEPROM Write Register - RW */ +#define E1000_FLSWCTL 0x01030 /* FLASH control register */ +#define E1000_FLSWDATA 0x01034 /* FLASH data register */ +#define E1000_FLSWCNT 0x01038 /* FLASH Access Counter */ +#define E1000_FLOP 0x0103C /* FLASH Opcode Register */ +#define E1000_ERT 0x02008 /* Early Rx Threshold - RW */ +#define E1000_FCRTL 0x02160 /* Flow Control Receive Threshold Low - RW */ +#define E1000_FCRTH 0x02168 /* Flow Control Receive Threshold High - RW */ +#define E1000_PSRCTL 0x02170 /* Packet Split Receive Control - RW */ +#define E1000_RDBAL 0x02800 /* RX Descriptor Base Address Low - RW */ +#define E1000_RDBAH 0x02804 /* RX Descriptor Base Address High - RW */ +#define E1000_RDLEN 0x02808 /* RX Descriptor Length - RW */ +#define E1000_RDH 0x02810 /* RX Descriptor Head - RW */ +#define E1000_RDT 0x02818 /* RX Descriptor Tail - RW */ +#define E1000_RDTR 0x02820 /* RX Delay Timer - RW */ +#define E1000_RDBAL0 E1000_RDBAL /* RX Desc Base Address Low (0) - RW */ +#define E1000_RDBAH0 E1000_RDBAH /* RX Desc Base Address High (0) - RW */ +#define E1000_RDLEN0 E1000_RDLEN /* RX Desc Length (0) - RW */ +#define E1000_RDH0 E1000_RDH /* RX Desc Head (0) - RW */ +#define E1000_RDT0 E1000_RDT /* RX Desc Tail (0) - RW */ +#define E1000_RDTR0 E1000_RDTR /* RX Delay Timer (0) - RW */ +#define E1000_RXDCTL 0x02828 /* RX Descriptor Control queue 0 - RW */ +#define E1000_RXDCTL1 0x02928 /* RX Descriptor Control queue 1 - RW */ +#define E1000_RADV 0x0282C /* RX Interrupt Absolute Delay Timer - RW */ +#define E1000_RSRPD 0x02C00 /* RX Small Packet Detect - RW */ +#define E1000_RAID 0x02C08 /* Receive Ack Interrupt Delay - RW */ +#define E1000_TXDMAC 0x03000 /* TX DMA Control - RW */ +#define E1000_KABGTXD 0x03004 /* AFE Band Gap Transmit Ref Data */ +#define E1000_TDFH 0x03410 /* TX Data FIFO Head - RW */ +#define E1000_TDFT 0x03418 /* TX Data FIFO Tail - RW */ +#define E1000_TDFHS 0x03420 /* TX Data FIFO Head Saved - RW */ +#define E1000_TDFTS 0x03428 /* TX Data FIFO Tail Saved - RW */ +#define E1000_TDFPC 0x03430 /* TX Data FIFO Packet Count - RW */ +#define E1000_TDBAL 0x03800 /* TX Descriptor Base Address Low - RW */ +#define E1000_TDBAH 0x03804 /* TX Descriptor Base Address High - RW */ +#define E1000_TDLEN 0x03808 /* TX Descriptor Length - RW */ +#define E1000_TDH 0x03810 /* TX Descriptor Head - RW */ +#define E1000_TDT 0x03818 /* TX Descripotr Tail - RW */ +#define E1000_TIDV 0x03820 /* TX Interrupt Delay Value - RW */ +#define E1000_TXDCTL 0x03828 /* TX Descriptor Control - RW */ +#define E1000_TADV 0x0382C /* TX Interrupt Absolute Delay Val - RW */ +#define E1000_TSPMT 0x03830 /* TCP Segmentation PAD & Min Threshold - RW */ +#define E1000_TARC0 0x03840 /* TX Arbitration Count (0) */ +#define E1000_TDBAL1 0x03900 /* TX Desc Base Address Low (1) - RW */ +#define E1000_TDBAH1 0x03904 /* TX Desc Base Address High (1) - RW */ +#define E1000_TDLEN1 0x03908 /* TX Desc Length (1) - RW */ +#define E1000_TDH1 0x03910 /* TX Desc Head (1) - RW */ +#define E1000_TDT1 0x03918 /* TX Desc Tail (1) - RW */ +#define E1000_TXDCTL1 0x03928 /* TX Descriptor Control (1) - RW */ +#define E1000_TARC1 0x03940 /* TX Arbitration Count (1) */ +#define E1000_CRCERRS 0x04000 /* CRC Error Count - R/clr */ +#define E1000_ALGNERRC 0x04004 /* Alignment Error Count - R/clr */ +#define E1000_SYMERRS 0x04008 /* Symbol Error Count - R/clr */ +#define E1000_RXERRC 0x0400C /* Receive Error Count - R/clr */ +#define E1000_MPC 0x04010 /* Missed Packet Count - R/clr */ +#define E1000_SCC 0x04014 /* Single Collision Count - R/clr */ +#define E1000_ECOL 0x04018 /* Excessive Collision Count - R/clr */ +#define E1000_MCC 0x0401C /* Multiple Collision Count - R/clr */ +#define E1000_LATECOL 0x04020 /* Late Collision Count - R/clr */ +#define E1000_COLC 0x04028 /* Collision Count - R/clr */ +#define E1000_DC 0x04030 /* Defer Count - R/clr */ +#define E1000_TNCRS 0x04034 /* TX-No CRS - R/clr */ +#define E1000_SEC 0x04038 /* Sequence Error Count - R/clr */ +#define E1000_CEXTERR 0x0403C /* Carrier Extension Error Count - R/clr */ +#define E1000_RLEC 0x04040 /* Receive Length Error Count - R/clr */ +#define E1000_XONRXC 0x04048 /* XON RX Count - R/clr */ +#define E1000_XONTXC 0x0404C /* XON TX Count - R/clr */ +#define E1000_XOFFRXC 0x04050 /* XOFF RX Count - R/clr */ +#define E1000_XOFFTXC 0x04054 /* XOFF TX Count - R/clr */ +#define E1000_FCRUC 0x04058 /* Flow Control RX Unsupported Count- R/clr */ +#define E1000_PRC64 0x0405C /* Packets RX (64 bytes) - R/clr */ +#define E1000_PRC127 0x04060 /* Packets RX (65-127 bytes) - R/clr */ +#define E1000_PRC255 0x04064 /* Packets RX (128-255 bytes) - R/clr */ +#define E1000_PRC511 0x04068 /* Packets RX (255-511 bytes) - R/clr */ +#define E1000_PRC1023 0x0406C /* Packets RX (512-1023 bytes) - R/clr */ +#define E1000_PRC1522 0x04070 /* Packets RX (1024-1522 bytes) - R/clr */ +#define E1000_GPRC 0x04074 /* Good Packets RX Count - R/clr */ +#define E1000_BPRC 0x04078 /* Broadcast Packets RX Count - R/clr */ +#define E1000_MPRC 0x0407C /* Multicast Packets RX Count - R/clr */ +#define E1000_GPTC 0x04080 /* Good Packets TX Count - R/clr */ +#define E1000_GORCL 0x04088 /* Good Octets RX Count Low - R/clr */ +#define E1000_GORCH 0x0408C /* Good Octets RX Count High - R/clr */ +#define E1000_GOTCL 0x04090 /* Good Octets TX Count Low - R/clr */ +#define E1000_GOTCH 0x04094 /* Good Octets TX Count High - R/clr */ +#define E1000_RNBC 0x040A0 /* RX No Buffers Count - R/clr */ +#define E1000_RUC 0x040A4 /* RX Undersize Count - R/clr */ +#define E1000_RFC 0x040A8 /* RX Fragment Count - R/clr */ +#define E1000_ROC 0x040AC /* RX Oversize Count - R/clr */ +#define E1000_RJC 0x040B0 /* RX Jabber Count - R/clr */ +#define E1000_MGTPRC 0x040B4 /* Management Packets RX Count - R/clr */ +#define E1000_MGTPDC 0x040B8 /* Management Packets Dropped Count - R/clr */ +#define E1000_MGTPTC 0x040BC /* Management Packets TX Count - R/clr */ +#define E1000_TORL 0x040C0 /* Total Octets RX Low - R/clr */ +#define E1000_TORH 0x040C4 /* Total Octets RX High - R/clr */ +#define E1000_TOTL 0x040C8 /* Total Octets TX Low - R/clr */ +#define E1000_TOTH 0x040CC /* Total Octets TX High - R/clr */ +#define E1000_TPR 0x040D0 /* Total Packets RX - R/clr */ +#define E1000_TPT 0x040D4 /* Total Packets TX - R/clr */ +#define E1000_PTC64 0x040D8 /* Packets TX (64 bytes) - R/clr */ +#define E1000_PTC127 0x040DC /* Packets TX (65-127 bytes) - R/clr */ +#define E1000_PTC255 0x040E0 /* Packets TX (128-255 bytes) - R/clr */ +#define E1000_PTC511 0x040E4 /* Packets TX (256-511 bytes) - R/clr */ +#define E1000_PTC1023 0x040E8 /* Packets TX (512-1023 bytes) - R/clr */ +#define E1000_PTC1522 0x040EC /* Packets TX (1024-1522 Bytes) - R/clr */ +#define E1000_MPTC 0x040F0 /* Multicast Packets TX Count - R/clr */ +#define E1000_BPTC 0x040F4 /* Broadcast Packets TX Count - R/clr */ +#define E1000_TSCTC 0x040F8 /* TCP Segmentation Context TX - R/clr */ +#define E1000_TSCTFC 0x040FC /* TCP Segmentation Context TX Fail - R/clr */ +#define E1000_IAC 0x04100 /* Interrupt Assertion Count */ +#define E1000_ICRXPTC 0x04104 /* Interrupt Cause Rx Packet Timer Expire Count */ +#define E1000_ICRXATC 0x04108 /* Interrupt Cause Rx Absolute Timer Expire Count */ +#define E1000_ICTXPTC 0x0410C /* Interrupt Cause Tx Packet Timer Expire Count */ +#define E1000_ICTXATC 0x04110 /* Interrupt Cause Tx Absolute Timer Expire Count */ +#define E1000_ICTXQEC 0x04118 /* Interrupt Cause Tx Queue Empty Count */ +#define E1000_ICTXQMTC 0x0411C /* Interrupt Cause Tx Queue Minimum Threshold Count */ +#define E1000_ICRXDMTC 0x04120 /* Interrupt Cause Rx Descriptor Minimum Threshold Count */ +#define E1000_ICRXOC 0x04124 /* Interrupt Cause Receiver Overrun Count */ +#define E1000_RXCSUM 0x05000 /* RX Checksum Control - RW */ +#define E1000_RFCTL 0x05008 /* Receive Filter Control*/ +#define E1000_MTA 0x05200 /* Multicast Table Array - RW Array */ +#define E1000_RA 0x05400 /* Receive Address - RW Array */ +#define E1000_VFTA 0x05600 /* VLAN Filter Table Array - RW Array */ +#define E1000_WUC 0x05800 /* Wakeup Control - RW */ +#define E1000_WUFC 0x05808 /* Wakeup Filter Control - RW */ +#define E1000_WUS 0x05810 /* Wakeup Status - RO */ +#define E1000_MANC 0x05820 /* Management Control - RW */ +#define E1000_IPAV 0x05838 /* IP Address Valid - RW */ +#define E1000_IP4AT 0x05840 /* IPv4 Address Table - RW Array */ +#define E1000_IP6AT 0x05880 /* IPv6 Address Table - RW Array */ +#define E1000_WUPL 0x05900 /* Wakeup Packet Length - RW */ +#define E1000_WUPM 0x05A00 /* Wakeup Packet Memory - RO A */ +#define E1000_FFLT 0x05F00 /* Flexible Filter Length Table - RW Array */ +#define E1000_HOST_IF 0x08800 /* Host Interface */ +#define E1000_FFMT 0x09000 /* Flexible Filter Mask Table - RW Array */ +#define E1000_FFVT 0x09800 /* Flexible Filter Value Table - RW Array */ + +#define E1000_KUMCTRLSTA 0x00034 /* MAC-PHY interface - RW */ +#define E1000_MDPHYA 0x0003C /* PHY address - RW */ +#define E1000_MANC2H 0x05860 /* Managment Control To Host - RW */ +#define E1000_SW_FW_SYNC 0x05B5C /* Software-Firmware Synchronization - RW */ + +#define E1000_GCR 0x05B00 /* PCI-Ex Control */ +#define E1000_GSCL_1 0x05B10 /* PCI-Ex Statistic Control #1 */ +#define E1000_GSCL_2 0x05B14 /* PCI-Ex Statistic Control #2 */ +#define E1000_GSCL_3 0x05B18 /* PCI-Ex Statistic Control #3 */ +#define E1000_GSCL_4 0x05B1C /* PCI-Ex Statistic Control #4 */ +#define E1000_FACTPS 0x05B30 /* Function Active and Power State to MNG */ +#define E1000_SWSM 0x05B50 /* SW Semaphore */ +#define E1000_FWSM 0x05B54 /* FW Semaphore */ +#define E1000_FFLT_DBG 0x05F04 /* Debug Register */ +#define E1000_HICR 0x08F00 /* Host Inteface Control */ + +/* RSS registers */ +#define E1000_CPUVEC 0x02C10 /* CPU Vector Register - RW */ +#define E1000_MRQC 0x05818 /* Multiple Receive Control - RW */ +#define E1000_RETA 0x05C00 /* Redirection Table - RW Array */ +#define E1000_RSSRK 0x05C80 /* RSS Random Key - RW Array */ +#define E1000_RSSIM 0x05864 /* RSS Interrupt Mask */ +#define E1000_RSSIR 0x05868 /* RSS Interrupt Request */ +/* Register Set (82542) + * + * Some of the 82542 registers are located at different offsets than they are + * in more current versions of the 8254x. Despite the difference in location, + * the registers function in the same manner. + */ +#define E1000_82542_CTRL E1000_CTRL +#define E1000_82542_CTRL_DUP E1000_CTRL_DUP +#define E1000_82542_STATUS E1000_STATUS +#define E1000_82542_EECD E1000_EECD +#define E1000_82542_EERD E1000_EERD +#define E1000_82542_CTRL_EXT E1000_CTRL_EXT +#define E1000_82542_FLA E1000_FLA +#define E1000_82542_MDIC E1000_MDIC +#define E1000_82542_SCTL E1000_SCTL +#define E1000_82542_FEXTNVM E1000_FEXTNVM +#define E1000_82542_FCAL E1000_FCAL +#define E1000_82542_FCAH E1000_FCAH +#define E1000_82542_FCT E1000_FCT +#define E1000_82542_VET E1000_VET +#define E1000_82542_RA 0x00040 +#define E1000_82542_ICR E1000_ICR +#define E1000_82542_ITR E1000_ITR +#define E1000_82542_ICS E1000_ICS +#define E1000_82542_IMS E1000_IMS +#define E1000_82542_IMC E1000_IMC +#define E1000_82542_RCTL E1000_RCTL +#define E1000_82542_RDTR 0x00108 +#define E1000_82542_RDBAL 0x00110 +#define E1000_82542_RDBAH 0x00114 +#define E1000_82542_RDLEN 0x00118 +#define E1000_82542_RDH 0x00120 +#define E1000_82542_RDT 0x00128 +#define E1000_82542_RDTR0 E1000_82542_RDTR +#define E1000_82542_RDBAL0 E1000_82542_RDBAL +#define E1000_82542_RDBAH0 E1000_82542_RDBAH +#define E1000_82542_RDLEN0 E1000_82542_RDLEN +#define E1000_82542_RDH0 E1000_82542_RDH +#define E1000_82542_RDT0 E1000_82542_RDT +#define E1000_82542_SRRCTL(_n) (0x280C + ((_n) << 8)) /* Split and Replication + * RX Control - RW */ +#define E1000_82542_DCA_RXCTRL(_n) (0x02814 + ((_n) << 8)) +#define E1000_82542_RDBAH3 0x02B04 /* RX Desc Base High Queue 3 - RW */ +#define E1000_82542_RDBAL3 0x02B00 /* RX Desc Low Queue 3 - RW */ +#define E1000_82542_RDLEN3 0x02B08 /* RX Desc Length Queue 3 - RW */ +#define E1000_82542_RDH3 0x02B10 /* RX Desc Head Queue 3 - RW */ +#define E1000_82542_RDT3 0x02B18 /* RX Desc Tail Queue 3 - RW */ +#define E1000_82542_RDBAL2 0x02A00 /* RX Desc Base Low Queue 2 - RW */ +#define E1000_82542_RDBAH2 0x02A04 /* RX Desc Base High Queue 2 - RW */ +#define E1000_82542_RDLEN2 0x02A08 /* RX Desc Length Queue 2 - RW */ +#define E1000_82542_RDH2 0x02A10 /* RX Desc Head Queue 2 - RW */ +#define E1000_82542_RDT2 0x02A18 /* RX Desc Tail Queue 2 - RW */ +#define E1000_82542_RDTR1 0x00130 +#define E1000_82542_RDBAL1 0x00138 +#define E1000_82542_RDBAH1 0x0013C +#define E1000_82542_RDLEN1 0x00140 +#define E1000_82542_RDH1 0x00148 +#define E1000_82542_RDT1 0x00150 +#define E1000_82542_FCRTH 0x00160 +#define E1000_82542_FCRTL 0x00168 +#define E1000_82542_FCTTV E1000_FCTTV +#define E1000_82542_TXCW E1000_TXCW +#define E1000_82542_RXCW E1000_RXCW +#define E1000_82542_MTA 0x00200 +#define E1000_82542_TCTL E1000_TCTL +#define E1000_82542_TCTL_EXT E1000_TCTL_EXT +#define E1000_82542_TIPG E1000_TIPG +#define E1000_82542_TDBAL 0x00420 +#define E1000_82542_TDBAH 0x00424 +#define E1000_82542_TDLEN 0x00428 +#define E1000_82542_TDH 0x00430 +#define E1000_82542_TDT 0x00438 +#define E1000_82542_TIDV 0x00440 +#define E1000_82542_TBT E1000_TBT +#define E1000_82542_AIT E1000_AIT +#define E1000_82542_VFTA 0x00600 +#define E1000_82542_LEDCTL E1000_LEDCTL +#define E1000_82542_PBA E1000_PBA +#define E1000_82542_PBS E1000_PBS +#define E1000_82542_EEMNGCTL E1000_EEMNGCTL +#define E1000_82542_EEARBC E1000_EEARBC +#define E1000_82542_FLASHT E1000_FLASHT +#define E1000_82542_EEWR E1000_EEWR +#define E1000_82542_FLSWCTL E1000_FLSWCTL +#define E1000_82542_FLSWDATA E1000_FLSWDATA +#define E1000_82542_FLSWCNT E1000_FLSWCNT +#define E1000_82542_FLOP E1000_FLOP +#define E1000_82542_EXTCNF_CTRL E1000_EXTCNF_CTRL +#define E1000_82542_EXTCNF_SIZE E1000_EXTCNF_SIZE +#define E1000_82542_PHY_CTRL E1000_PHY_CTRL +#define E1000_82542_ERT E1000_ERT +#define E1000_82542_RXDCTL E1000_RXDCTL +#define E1000_82542_RXDCTL1 E1000_RXDCTL1 +#define E1000_82542_RADV E1000_RADV +#define E1000_82542_RSRPD E1000_RSRPD +#define E1000_82542_TXDMAC E1000_TXDMAC +#define E1000_82542_KABGTXD E1000_KABGTXD +#define E1000_82542_TDFHS E1000_TDFHS +#define E1000_82542_TDFTS E1000_TDFTS +#define E1000_82542_TDFPC E1000_TDFPC +#define E1000_82542_TXDCTL E1000_TXDCTL +#define E1000_82542_TADV E1000_TADV +#define E1000_82542_TSPMT E1000_TSPMT +#define E1000_82542_CRCERRS E1000_CRCERRS +#define E1000_82542_ALGNERRC E1000_ALGNERRC +#define E1000_82542_SYMERRS E1000_SYMERRS +#define E1000_82542_RXERRC E1000_RXERRC +#define E1000_82542_MPC E1000_MPC +#define E1000_82542_SCC E1000_SCC +#define E1000_82542_ECOL E1000_ECOL +#define E1000_82542_MCC E1000_MCC +#define E1000_82542_LATECOL E1000_LATECOL +#define E1000_82542_COLC E1000_COLC +#define E1000_82542_DC E1000_DC +#define E1000_82542_TNCRS E1000_TNCRS +#define E1000_82542_SEC E1000_SEC +#define E1000_82542_CEXTERR E1000_CEXTERR +#define E1000_82542_RLEC E1000_RLEC +#define E1000_82542_XONRXC E1000_XONRXC +#define E1000_82542_XONTXC E1000_XONTXC +#define E1000_82542_XOFFRXC E1000_XOFFRXC +#define E1000_82542_XOFFTXC E1000_XOFFTXC +#define E1000_82542_FCRUC E1000_FCRUC +#define E1000_82542_PRC64 E1000_PRC64 +#define E1000_82542_PRC127 E1000_PRC127 +#define E1000_82542_PRC255 E1000_PRC255 +#define E1000_82542_PRC511 E1000_PRC511 +#define E1000_82542_PRC1023 E1000_PRC1023 +#define E1000_82542_PRC1522 E1000_PRC1522 +#define E1000_82542_GPRC E1000_GPRC +#define E1000_82542_BPRC E1000_BPRC +#define E1000_82542_MPRC E1000_MPRC +#define E1000_82542_GPTC E1000_GPTC +#define E1000_82542_GORCL E1000_GORCL +#define E1000_82542_GORCH E1000_GORCH +#define E1000_82542_GOTCL E1000_GOTCL +#define E1000_82542_GOTCH E1000_GOTCH +#define E1000_82542_RNBC E1000_RNBC +#define E1000_82542_RUC E1000_RUC +#define E1000_82542_RFC E1000_RFC +#define E1000_82542_ROC E1000_ROC +#define E1000_82542_RJC E1000_RJC +#define E1000_82542_MGTPRC E1000_MGTPRC +#define E1000_82542_MGTPDC E1000_MGTPDC +#define E1000_82542_MGTPTC E1000_MGTPTC +#define E1000_82542_TORL E1000_TORL +#define E1000_82542_TORH E1000_TORH +#define E1000_82542_TOTL E1000_TOTL +#define E1000_82542_TOTH E1000_TOTH +#define E1000_82542_TPR E1000_TPR +#define E1000_82542_TPT E1000_TPT +#define E1000_82542_PTC64 E1000_PTC64 +#define E1000_82542_PTC127 E1000_PTC127 +#define E1000_82542_PTC255 E1000_PTC255 +#define E1000_82542_PTC511 E1000_PTC511 +#define E1000_82542_PTC1023 E1000_PTC1023 +#define E1000_82542_PTC1522 E1000_PTC1522 +#define E1000_82542_MPTC E1000_MPTC +#define E1000_82542_BPTC E1000_BPTC +#define E1000_82542_TSCTC E1000_TSCTC +#define E1000_82542_TSCTFC E1000_TSCTFC +#define E1000_82542_RXCSUM E1000_RXCSUM +#define E1000_82542_WUC E1000_WUC +#define E1000_82542_WUFC E1000_WUFC +#define E1000_82542_WUS E1000_WUS +#define E1000_82542_MANC E1000_MANC +#define E1000_82542_IPAV E1000_IPAV +#define E1000_82542_IP4AT E1000_IP4AT +#define E1000_82542_IP6AT E1000_IP6AT +#define E1000_82542_WUPL E1000_WUPL +#define E1000_82542_WUPM E1000_WUPM +#define E1000_82542_FFLT E1000_FFLT +#define E1000_82542_TDFH 0x08010 +#define E1000_82542_TDFT 0x08018 +#define E1000_82542_FFMT E1000_FFMT +#define E1000_82542_FFVT E1000_FFVT +#define E1000_82542_HOST_IF E1000_HOST_IF +#define E1000_82542_IAM E1000_IAM +#define E1000_82542_EEMNGCTL E1000_EEMNGCTL +#define E1000_82542_PSRCTL E1000_PSRCTL +#define E1000_82542_RAID E1000_RAID +#define E1000_82542_TARC0 E1000_TARC0 +#define E1000_82542_TDBAL1 E1000_TDBAL1 +#define E1000_82542_TDBAH1 E1000_TDBAH1 +#define E1000_82542_TDLEN1 E1000_TDLEN1 +#define E1000_82542_TDH1 E1000_TDH1 +#define E1000_82542_TDT1 E1000_TDT1 +#define E1000_82542_TXDCTL1 E1000_TXDCTL1 +#define E1000_82542_TARC1 E1000_TARC1 +#define E1000_82542_RFCTL E1000_RFCTL +#define E1000_82542_GCR E1000_GCR +#define E1000_82542_GSCL_1 E1000_GSCL_1 +#define E1000_82542_GSCL_2 E1000_GSCL_2 +#define E1000_82542_GSCL_3 E1000_GSCL_3 +#define E1000_82542_GSCL_4 E1000_GSCL_4 +#define E1000_82542_FACTPS E1000_FACTPS +#define E1000_82542_SWSM E1000_SWSM +#define E1000_82542_FWSM E1000_FWSM +#define E1000_82542_FFLT_DBG E1000_FFLT_DBG +#define E1000_82542_IAC E1000_IAC +#define E1000_82542_ICRXPTC E1000_ICRXPTC +#define E1000_82542_ICRXATC E1000_ICRXATC +#define E1000_82542_ICTXPTC E1000_ICTXPTC +#define E1000_82542_ICTXATC E1000_ICTXATC +#define E1000_82542_ICTXQEC E1000_ICTXQEC +#define E1000_82542_ICTXQMTC E1000_ICTXQMTC +#define E1000_82542_ICRXDMTC E1000_ICRXDMTC +#define E1000_82542_ICRXOC E1000_ICRXOC +#define E1000_82542_HICR E1000_HICR + +#define E1000_82542_CPUVEC E1000_CPUVEC +#define E1000_82542_MRQC E1000_MRQC +#define E1000_82542_RETA E1000_RETA +#define E1000_82542_RSSRK E1000_RSSRK +#define E1000_82542_RSSIM E1000_RSSIM +#define E1000_82542_RSSIR E1000_RSSIR +#define E1000_82542_KUMCTRLSTA E1000_KUMCTRLSTA +#define E1000_82542_SW_FW_SYNC E1000_SW_FW_SYNC +#define E1000_82542_MANC2H E1000_MANC2H + +/* Statistics counters collected by the MAC */ +struct e1000_hw_stats { + u64 crcerrs; + u64 algnerrc; + u64 symerrs; + u64 rxerrc; + u64 txerrc; + u64 mpc; + u64 scc; + u64 ecol; + u64 mcc; + u64 latecol; + u64 colc; + u64 dc; + u64 tncrs; + u64 sec; + u64 cexterr; + u64 rlec; + u64 xonrxc; + u64 xontxc; + u64 xoffrxc; + u64 xofftxc; + u64 fcruc; + u64 prc64; + u64 prc127; + u64 prc255; + u64 prc511; + u64 prc1023; + u64 prc1522; + u64 gprc; + u64 bprc; + u64 mprc; + u64 gptc; + u64 gorcl; + u64 gorch; + u64 gotcl; + u64 gotch; + u64 rnbc; + u64 ruc; + u64 rfc; + u64 roc; + u64 rlerrc; + u64 rjc; + u64 mgprc; + u64 mgpdc; + u64 mgptc; + u64 torl; + u64 torh; + u64 totl; + u64 toth; + u64 tpr; + u64 tpt; + u64 ptc64; + u64 ptc127; + u64 ptc255; + u64 ptc511; + u64 ptc1023; + u64 ptc1522; + u64 mptc; + u64 bptc; + u64 tsctc; + u64 tsctfc; + u64 iac; + u64 icrxptc; + u64 icrxatc; + u64 ictxptc; + u64 ictxatc; + u64 ictxqec; + u64 ictxqmtc; + u64 icrxdmtc; + u64 icrxoc; +}; + +/* Structure containing variables used by the shared code (e1000_hw.c) */ +struct e1000_hw { + u8 __iomem *hw_addr; + u8 __iomem *flash_address; + e1000_mac_type mac_type; + e1000_phy_type phy_type; + u32 phy_init_script; + e1000_media_type media_type; + void *back; + struct e1000_shadow_ram *eeprom_shadow_ram; + u32 flash_bank_size; + u32 flash_base_addr; + e1000_fc_type fc; + e1000_bus_speed bus_speed; + e1000_bus_width bus_width; + e1000_bus_type bus_type; + struct e1000_eeprom_info eeprom; + e1000_ms_type master_slave; + e1000_ms_type original_master_slave; + e1000_ffe_config ffe_config_state; + u32 asf_firmware_present; + u32 eeprom_semaphore_present; + u32 swfw_sync_present; + u32 swfwhw_semaphore_present; + unsigned long io_base; + u32 phy_id; + u32 phy_revision; + u32 phy_addr; + u32 original_fc; + u32 txcw; + u32 autoneg_failed; + u32 max_frame_size; + u32 min_frame_size; + u32 mc_filter_type; + u32 num_mc_addrs; + u32 collision_delta; + u32 tx_packet_delta; + u32 ledctl_default; + u32 ledctl_mode1; + u32 ledctl_mode2; + bool tx_pkt_filtering; + struct e1000_host_mng_dhcp_cookie mng_cookie; + u16 phy_spd_default; + u16 autoneg_advertised; + u16 pci_cmd_word; + u16 fc_high_water; + u16 fc_low_water; + u16 fc_pause_time; + u16 current_ifs_val; + u16 ifs_min_val; + u16 ifs_max_val; + u16 ifs_step_size; + u16 ifs_ratio; + u16 device_id; + u16 vendor_id; + u16 subsystem_id; + u16 subsystem_vendor_id; + u8 revision_id; + u8 autoneg; + u8 mdix; + u8 forced_speed_duplex; + u8 wait_autoneg_complete; + u8 dma_fairness; + u8 mac_addr[NODE_ADDRESS_SIZE]; + u8 perm_mac_addr[NODE_ADDRESS_SIZE]; + bool disable_polarity_correction; + bool speed_downgraded; + e1000_smart_speed smart_speed; + e1000_dsp_config dsp_config_state; + bool get_link_status; + bool serdes_link_down; + bool tbi_compatibility_en; + bool tbi_compatibility_on; + bool laa_is_present; + bool phy_reset_disable; + bool initialize_hw_bits_disable; + bool fc_send_xon; + bool fc_strict_ieee; + bool report_tx_early; + bool adaptive_ifs; + bool ifs_params_forced; + bool in_ifs_mode; + bool mng_reg_access_disabled; + bool leave_av_bit_off; + bool kmrn_lock_loss_workaround_disabled; + bool bad_tx_carr_stats_fd; + bool has_manc2h; + bool rx_needs_kicking; + bool has_smbus; +}; + + +#define E1000_EEPROM_SWDPIN0 0x0001 /* SWDPIN 0 EEPROM Value */ +#define E1000_EEPROM_LED_LOGIC 0x0020 /* Led Logic Word */ +#define E1000_EEPROM_RW_REG_DATA 16 /* Offset to data in EEPROM read/write registers */ +#define E1000_EEPROM_RW_REG_DONE 2 /* Offset to READ/WRITE done bit */ +#define E1000_EEPROM_RW_REG_START 1 /* First bit for telling part to start operation */ +#define E1000_EEPROM_RW_ADDR_SHIFT 2 /* Shift to the address bits */ +#define E1000_EEPROM_POLL_WRITE 1 /* Flag for polling for write complete */ +#define E1000_EEPROM_POLL_READ 0 /* Flag for polling for read complete */ +/* Register Bit Masks */ +/* Device Control */ +#define E1000_CTRL_FD 0x00000001 /* Full duplex.0=half; 1=full */ +#define E1000_CTRL_BEM 0x00000002 /* Endian Mode.0=little,1=big */ +#define E1000_CTRL_PRIOR 0x00000004 /* Priority on PCI. 0=rx,1=fair */ +#define E1000_CTRL_GIO_MASTER_DISABLE 0x00000004 /*Blocks new Master requests */ +#define E1000_CTRL_LRST 0x00000008 /* Link reset. 0=normal,1=reset */ +#define E1000_CTRL_TME 0x00000010 /* Test mode. 0=normal,1=test */ +#define E1000_CTRL_SLE 0x00000020 /* Serial Link on 0=dis,1=en */ +#define E1000_CTRL_ASDE 0x00000020 /* Auto-speed detect enable */ +#define E1000_CTRL_SLU 0x00000040 /* Set link up (Force Link) */ +#define E1000_CTRL_ILOS 0x00000080 /* Invert Loss-Of Signal */ +#define E1000_CTRL_SPD_SEL 0x00000300 /* Speed Select Mask */ +#define E1000_CTRL_SPD_10 0x00000000 /* Force 10Mb */ +#define E1000_CTRL_SPD_100 0x00000100 /* Force 100Mb */ +#define E1000_CTRL_SPD_1000 0x00000200 /* Force 1Gb */ +#define E1000_CTRL_BEM32 0x00000400 /* Big Endian 32 mode */ +#define E1000_CTRL_FRCSPD 0x00000800 /* Force Speed */ +#define E1000_CTRL_FRCDPX 0x00001000 /* Force Duplex */ +#define E1000_CTRL_D_UD_EN 0x00002000 /* Dock/Undock enable */ +#define E1000_CTRL_D_UD_POLARITY 0x00004000 /* Defined polarity of Dock/Undock indication in SDP[0] */ +#define E1000_CTRL_FORCE_PHY_RESET 0x00008000 /* Reset both PHY ports, through PHYRST_N pin */ +#define E1000_CTRL_EXT_LINK_EN 0x00010000 /* enable link status from external LINK_0 and LINK_1 pins */ +#define E1000_CTRL_SWDPIN0 0x00040000 /* SWDPIN 0 value */ +#define E1000_CTRL_SWDPIN1 0x00080000 /* SWDPIN 1 value */ +#define E1000_CTRL_SWDPIN2 0x00100000 /* SWDPIN 2 value */ +#define E1000_CTRL_SWDPIN3 0x00200000 /* SWDPIN 3 value */ +#define E1000_CTRL_SWDPIO0 0x00400000 /* SWDPIN 0 Input or output */ +#define E1000_CTRL_SWDPIO1 0x00800000 /* SWDPIN 1 input or output */ +#define E1000_CTRL_SWDPIO2 0x01000000 /* SWDPIN 2 input or output */ +#define E1000_CTRL_SWDPIO3 0x02000000 /* SWDPIN 3 input or output */ +#define E1000_CTRL_RST 0x04000000 /* Global reset */ +#define E1000_CTRL_RFCE 0x08000000 /* Receive Flow Control enable */ +#define E1000_CTRL_TFCE 0x10000000 /* Transmit flow control enable */ +#define E1000_CTRL_RTE 0x20000000 /* Routing tag enable */ +#define E1000_CTRL_VME 0x40000000 /* IEEE VLAN mode enable */ +#define E1000_CTRL_PHY_RST 0x80000000 /* PHY Reset */ +#define E1000_CTRL_SW2FW_INT 0x02000000 /* Initiate an interrupt to manageability engine */ + +/* Device Status */ +#define E1000_STATUS_FD 0x00000001 /* Full duplex.0=half,1=full */ +#define E1000_STATUS_LU 0x00000002 /* Link up.0=no,1=link */ +#define E1000_STATUS_FUNC_MASK 0x0000000C /* PCI Function Mask */ +#define E1000_STATUS_FUNC_SHIFT 2 +#define E1000_STATUS_FUNC_0 0x00000000 /* Function 0 */ +#define E1000_STATUS_FUNC_1 0x00000004 /* Function 1 */ +#define E1000_STATUS_TXOFF 0x00000010 /* transmission paused */ +#define E1000_STATUS_TBIMODE 0x00000020 /* TBI mode */ +#define E1000_STATUS_SPEED_MASK 0x000000C0 +#define E1000_STATUS_SPEED_10 0x00000000 /* Speed 10Mb/s */ +#define E1000_STATUS_SPEED_100 0x00000040 /* Speed 100Mb/s */ +#define E1000_STATUS_SPEED_1000 0x00000080 /* Speed 1000Mb/s */ +#define E1000_STATUS_LAN_INIT_DONE 0x00000200 /* Lan Init Completion + by EEPROM/Flash */ +#define E1000_STATUS_ASDV 0x00000300 /* Auto speed detect value */ +#define E1000_STATUS_DOCK_CI 0x00000800 /* Change in Dock/Undock state. Clear on write '0'. */ +#define E1000_STATUS_GIO_MASTER_ENABLE 0x00080000 /* Status of Master requests. */ +#define E1000_STATUS_MTXCKOK 0x00000400 /* MTX clock running OK */ +#define E1000_STATUS_PCI66 0x00000800 /* In 66Mhz slot */ +#define E1000_STATUS_BUS64 0x00001000 /* In 64 bit slot */ +#define E1000_STATUS_PCIX_MODE 0x00002000 /* PCI-X mode */ +#define E1000_STATUS_PCIX_SPEED 0x0000C000 /* PCI-X bus speed */ +#define E1000_STATUS_BMC_SKU_0 0x00100000 /* BMC USB redirect disabled */ +#define E1000_STATUS_BMC_SKU_1 0x00200000 /* BMC SRAM disabled */ +#define E1000_STATUS_BMC_SKU_2 0x00400000 /* BMC SDRAM disabled */ +#define E1000_STATUS_BMC_CRYPTO 0x00800000 /* BMC crypto disabled */ +#define E1000_STATUS_BMC_LITE 0x01000000 /* BMC external code execution disabled */ +#define E1000_STATUS_RGMII_ENABLE 0x02000000 /* RGMII disabled */ +#define E1000_STATUS_FUSE_8 0x04000000 +#define E1000_STATUS_FUSE_9 0x08000000 +#define E1000_STATUS_SERDES0_DIS 0x10000000 /* SERDES disabled on port 0 */ +#define E1000_STATUS_SERDES1_DIS 0x20000000 /* SERDES disabled on port 1 */ + +/* Constants used to intrepret the masked PCI-X bus speed. */ +#define E1000_STATUS_PCIX_SPEED_66 0x00000000 /* PCI-X bus speed 50-66 MHz */ +#define E1000_STATUS_PCIX_SPEED_100 0x00004000 /* PCI-X bus speed 66-100 MHz */ +#define E1000_STATUS_PCIX_SPEED_133 0x00008000 /* PCI-X bus speed 100-133 MHz */ + +/* EEPROM/Flash Control */ +#define E1000_EECD_SK 0x00000001 /* EEPROM Clock */ +#define E1000_EECD_CS 0x00000002 /* EEPROM Chip Select */ +#define E1000_EECD_DI 0x00000004 /* EEPROM Data In */ +#define E1000_EECD_DO 0x00000008 /* EEPROM Data Out */ +#define E1000_EECD_FWE_MASK 0x00000030 +#define E1000_EECD_FWE_DIS 0x00000010 /* Disable FLASH writes */ +#define E1000_EECD_FWE_EN 0x00000020 /* Enable FLASH writes */ +#define E1000_EECD_FWE_SHIFT 4 +#define E1000_EECD_REQ 0x00000040 /* EEPROM Access Request */ +#define E1000_EECD_GNT 0x00000080 /* EEPROM Access Grant */ +#define E1000_EECD_PRES 0x00000100 /* EEPROM Present */ +#define E1000_EECD_SIZE 0x00000200 /* EEPROM Size (0=64 word 1=256 word) */ +#define E1000_EECD_ADDR_BITS 0x00000400 /* EEPROM Addressing bits based on type + * (0-small, 1-large) */ +#define E1000_EECD_TYPE 0x00002000 /* EEPROM Type (1-SPI, 0-Microwire) */ +#ifndef E1000_EEPROM_GRANT_ATTEMPTS +#define E1000_EEPROM_GRANT_ATTEMPTS 1000 /* EEPROM # attempts to gain grant */ +#endif +#define E1000_EECD_AUTO_RD 0x00000200 /* EEPROM Auto Read done */ +#define E1000_EECD_SIZE_EX_MASK 0x00007800 /* EEprom Size */ +#define E1000_EECD_SIZE_EX_SHIFT 11 +#define E1000_EECD_NVADDS 0x00018000 /* NVM Address Size */ +#define E1000_EECD_SELSHAD 0x00020000 /* Select Shadow RAM */ +#define E1000_EECD_INITSRAM 0x00040000 /* Initialize Shadow RAM */ +#define E1000_EECD_FLUPD 0x00080000 /* Update FLASH */ +#define E1000_EECD_AUPDEN 0x00100000 /* Enable Autonomous FLASH update */ +#define E1000_EECD_SHADV 0x00200000 /* Shadow RAM Data Valid */ +#define E1000_EECD_SEC1VAL 0x00400000 /* Sector One Valid */ +#define E1000_EECD_SECVAL_SHIFT 22 +#define E1000_STM_OPCODE 0xDB00 +#define E1000_HICR_FW_RESET 0xC0 + +#define E1000_SHADOW_RAM_WORDS 2048 +#define E1000_ICH_NVM_SIG_WORD 0x13 +#define E1000_ICH_NVM_SIG_MASK 0xC0 + +/* EEPROM Read */ +#define E1000_EERD_START 0x00000001 /* Start Read */ +#define E1000_EERD_DONE 0x00000010 /* Read Done */ +#define E1000_EERD_ADDR_SHIFT 8 +#define E1000_EERD_ADDR_MASK 0x0000FF00 /* Read Address */ +#define E1000_EERD_DATA_SHIFT 16 +#define E1000_EERD_DATA_MASK 0xFFFF0000 /* Read Data */ + +/* SPI EEPROM Status Register */ +#define EEPROM_STATUS_RDY_SPI 0x01 +#define EEPROM_STATUS_WEN_SPI 0x02 +#define EEPROM_STATUS_BP0_SPI 0x04 +#define EEPROM_STATUS_BP1_SPI 0x08 +#define EEPROM_STATUS_WPEN_SPI 0x80 + +/* Extended Device Control */ +#define E1000_CTRL_EXT_GPI0_EN 0x00000001 /* Maps SDP4 to GPI0 */ +#define E1000_CTRL_EXT_GPI1_EN 0x00000002 /* Maps SDP5 to GPI1 */ +#define E1000_CTRL_EXT_PHYINT_EN E1000_CTRL_EXT_GPI1_EN +#define E1000_CTRL_EXT_GPI2_EN 0x00000004 /* Maps SDP6 to GPI2 */ +#define E1000_CTRL_EXT_GPI3_EN 0x00000008 /* Maps SDP7 to GPI3 */ +#define E1000_CTRL_EXT_SDP4_DATA 0x00000010 /* Value of SW Defineable Pin 4 */ +#define E1000_CTRL_EXT_SDP5_DATA 0x00000020 /* Value of SW Defineable Pin 5 */ +#define E1000_CTRL_EXT_PHY_INT E1000_CTRL_EXT_SDP5_DATA +#define E1000_CTRL_EXT_SDP6_DATA 0x00000040 /* Value of SW Defineable Pin 6 */ +#define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */ +#define E1000_CTRL_EXT_SDP4_DIR 0x00000100 /* Direction of SDP4 0=in 1=out */ +#define E1000_CTRL_EXT_SDP5_DIR 0x00000200 /* Direction of SDP5 0=in 1=out */ +#define E1000_CTRL_EXT_SDP6_DIR 0x00000400 /* Direction of SDP6 0=in 1=out */ +#define E1000_CTRL_EXT_SDP7_DIR 0x00000800 /* Direction of SDP7 0=in 1=out */ +#define E1000_CTRL_EXT_ASDCHK 0x00001000 /* Initiate an ASD sequence */ +#define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */ +#define E1000_CTRL_EXT_IPS 0x00004000 /* Invert Power State */ +#define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */ +#define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */ +#define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000 +#define E1000_CTRL_EXT_LINK_MODE_TBI 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_KMRN 0x00000000 +#define E1000_CTRL_EXT_LINK_MODE_SERDES 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_SGMII 0x00800000 +#define E1000_CTRL_EXT_WR_WMARK_MASK 0x03000000 +#define E1000_CTRL_EXT_WR_WMARK_256 0x00000000 +#define E1000_CTRL_EXT_WR_WMARK_320 0x01000000 +#define E1000_CTRL_EXT_WR_WMARK_384 0x02000000 +#define E1000_CTRL_EXT_WR_WMARK_448 0x03000000 +#define E1000_CTRL_EXT_DRV_LOAD 0x10000000 /* Driver loaded bit for FW */ +#define E1000_CTRL_EXT_IAME 0x08000000 /* Interrupt acknowledge Auto-mask */ +#define E1000_CTRL_EXT_INT_TIMER_CLR 0x20000000 /* Clear Interrupt timers after IMS clear */ +#define E1000_CRTL_EXT_PB_PAREN 0x01000000 /* packet buffer parity error detection enabled */ +#define E1000_CTRL_EXT_DF_PAREN 0x02000000 /* descriptor FIFO parity error detection enable */ +#define E1000_CTRL_EXT_GHOST_PAREN 0x40000000 + +/* MDI Control */ +#define E1000_MDIC_DATA_MASK 0x0000FFFF +#define E1000_MDIC_REG_MASK 0x001F0000 +#define E1000_MDIC_REG_SHIFT 16 +#define E1000_MDIC_PHY_MASK 0x03E00000 +#define E1000_MDIC_PHY_SHIFT 21 +#define E1000_MDIC_OP_WRITE 0x04000000 +#define E1000_MDIC_OP_READ 0x08000000 +#define E1000_MDIC_READY 0x10000000 +#define E1000_MDIC_INT_EN 0x20000000 +#define E1000_MDIC_ERROR 0x40000000 + +#define E1000_KUMCTRLSTA_MASK 0x0000FFFF +#define E1000_KUMCTRLSTA_OFFSET 0x001F0000 +#define E1000_KUMCTRLSTA_OFFSET_SHIFT 16 +#define E1000_KUMCTRLSTA_REN 0x00200000 + +#define E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL 0x00000000 +#define E1000_KUMCTRLSTA_OFFSET_CTRL 0x00000001 +#define E1000_KUMCTRLSTA_OFFSET_INB_CTRL 0x00000002 +#define E1000_KUMCTRLSTA_OFFSET_DIAG 0x00000003 +#define E1000_KUMCTRLSTA_OFFSET_TIMEOUTS 0x00000004 +#define E1000_KUMCTRLSTA_OFFSET_INB_PARAM 0x00000009 +#define E1000_KUMCTRLSTA_OFFSET_HD_CTRL 0x00000010 +#define E1000_KUMCTRLSTA_OFFSET_M2P_SERDES 0x0000001E +#define E1000_KUMCTRLSTA_OFFSET_M2P_MODES 0x0000001F + +/* FIFO Control */ +#define E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS 0x00000008 +#define E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS 0x00000800 + +/* In-Band Control */ +#define E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT 0x00000500 +#define E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING 0x00000010 + +/* Half-Duplex Control */ +#define E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT 0x00000004 +#define E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT 0x00000000 + +#define E1000_KUMCTRLSTA_OFFSET_K0S_CTRL 0x0000001E + +#define E1000_KUMCTRLSTA_DIAG_FELPBK 0x2000 +#define E1000_KUMCTRLSTA_DIAG_NELPBK 0x1000 + +#define E1000_KUMCTRLSTA_K0S_100_EN 0x2000 +#define E1000_KUMCTRLSTA_K0S_GBE_EN 0x1000 +#define E1000_KUMCTRLSTA_K0S_ENTRY_LATENCY_MASK 0x0003 + +#define E1000_KABGTXD_BGSQLBIAS 0x00050000 + +#define E1000_PHY_CTRL_SPD_EN 0x00000001 +#define E1000_PHY_CTRL_D0A_LPLU 0x00000002 +#define E1000_PHY_CTRL_NOND0A_LPLU 0x00000004 +#define E1000_PHY_CTRL_NOND0A_GBE_DISABLE 0x00000008 +#define E1000_PHY_CTRL_GBE_DISABLE 0x00000040 +#define E1000_PHY_CTRL_B2B_EN 0x00000080 + +/* LED Control */ +#define E1000_LEDCTL_LED0_MODE_MASK 0x0000000F +#define E1000_LEDCTL_LED0_MODE_SHIFT 0 +#define E1000_LEDCTL_LED0_BLINK_RATE 0x0000020 +#define E1000_LEDCTL_LED0_IVRT 0x00000040 +#define E1000_LEDCTL_LED0_BLINK 0x00000080 +#define E1000_LEDCTL_LED1_MODE_MASK 0x00000F00 +#define E1000_LEDCTL_LED1_MODE_SHIFT 8 +#define E1000_LEDCTL_LED1_BLINK_RATE 0x0002000 +#define E1000_LEDCTL_LED1_IVRT 0x00004000 +#define E1000_LEDCTL_LED1_BLINK 0x00008000 +#define E1000_LEDCTL_LED2_MODE_MASK 0x000F0000 +#define E1000_LEDCTL_LED2_MODE_SHIFT 16 +#define E1000_LEDCTL_LED2_BLINK_RATE 0x00200000 +#define E1000_LEDCTL_LED2_IVRT 0x00400000 +#define E1000_LEDCTL_LED2_BLINK 0x00800000 +#define E1000_LEDCTL_LED3_MODE_MASK 0x0F000000 +#define E1000_LEDCTL_LED3_MODE_SHIFT 24 +#define E1000_LEDCTL_LED3_BLINK_RATE 0x20000000 +#define E1000_LEDCTL_LED3_IVRT 0x40000000 +#define E1000_LEDCTL_LED3_BLINK 0x80000000 + +#define E1000_LEDCTL_MODE_LINK_10_1000 0x0 +#define E1000_LEDCTL_MODE_LINK_100_1000 0x1 +#define E1000_LEDCTL_MODE_LINK_UP 0x2 +#define E1000_LEDCTL_MODE_ACTIVITY 0x3 +#define E1000_LEDCTL_MODE_LINK_ACTIVITY 0x4 +#define E1000_LEDCTL_MODE_LINK_10 0x5 +#define E1000_LEDCTL_MODE_LINK_100 0x6 +#define E1000_LEDCTL_MODE_LINK_1000 0x7 +#define E1000_LEDCTL_MODE_PCIX_MODE 0x8 +#define E1000_LEDCTL_MODE_FULL_DUPLEX 0x9 +#define E1000_LEDCTL_MODE_COLLISION 0xA +#define E1000_LEDCTL_MODE_BUS_SPEED 0xB +#define E1000_LEDCTL_MODE_BUS_SIZE 0xC +#define E1000_LEDCTL_MODE_PAUSED 0xD +#define E1000_LEDCTL_MODE_LED_ON 0xE +#define E1000_LEDCTL_MODE_LED_OFF 0xF + +/* Receive Address */ +#define E1000_RAH_AV 0x80000000 /* Receive descriptor valid */ + +/* Interrupt Cause Read */ +#define E1000_ICR_TXDW 0x00000001 /* Transmit desc written back */ +#define E1000_ICR_TXQE 0x00000002 /* Transmit Queue empty */ +#define E1000_ICR_LSC 0x00000004 /* Link Status Change */ +#define E1000_ICR_RXSEQ 0x00000008 /* rx sequence error */ +#define E1000_ICR_RXDMT0 0x00000010 /* rx desc min. threshold (0) */ +#define E1000_ICR_RXO 0x00000040 /* rx overrun */ +#define E1000_ICR_RXT0 0x00000080 /* rx timer intr (ring 0) */ +#define E1000_ICR_MDAC 0x00000200 /* MDIO access complete */ +#define E1000_ICR_RXCFG 0x00000400 /* RX /c/ ordered set */ +#define E1000_ICR_GPI_EN0 0x00000800 /* GP Int 0 */ +#define E1000_ICR_GPI_EN1 0x00001000 /* GP Int 1 */ +#define E1000_ICR_GPI_EN2 0x00002000 /* GP Int 2 */ +#define E1000_ICR_GPI_EN3 0x00004000 /* GP Int 3 */ +#define E1000_ICR_TXD_LOW 0x00008000 +#define E1000_ICR_SRPD 0x00010000 +#define E1000_ICR_ACK 0x00020000 /* Receive Ack frame */ +#define E1000_ICR_MNG 0x00040000 /* Manageability event */ +#define E1000_ICR_DOCK 0x00080000 /* Dock/Undock */ +#define E1000_ICR_INT_ASSERTED 0x80000000 /* If this bit asserted, the driver should claim the interrupt */ +#define E1000_ICR_RXD_FIFO_PAR0 0x00100000 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_ICR_TXD_FIFO_PAR0 0x00200000 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_ICR_HOST_ARB_PAR 0x00400000 /* host arb read buffer parity error */ +#define E1000_ICR_PB_PAR 0x00800000 /* packet buffer parity error */ +#define E1000_ICR_RXD_FIFO_PAR1 0x01000000 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_ICR_TXD_FIFO_PAR1 0x02000000 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_ICR_ALL_PARITY 0x03F00000 /* all parity error bits */ +#define E1000_ICR_DSW 0x00000020 /* FW changed the status of DISSW bit in the FWSM */ +#define E1000_ICR_PHYINT 0x00001000 /* LAN connected device generates an interrupt */ +#define E1000_ICR_EPRST 0x00100000 /* ME handware reset occurs */ + +/* Interrupt Cause Set */ +#define E1000_ICS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_ICS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_ICS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_ICS_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_ICS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_ICS_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_ICS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_ICS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_ICS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_ICS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_ICS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_ICS_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_ICS_SRPD E1000_ICR_SRPD +#define E1000_ICS_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_ICS_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_ICS_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_ICS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_ICS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_ICS_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_ICS_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_ICS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_ICS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_ICS_DSW E1000_ICR_DSW +#define E1000_ICS_PHYINT E1000_ICR_PHYINT +#define E1000_ICS_EPRST E1000_ICR_EPRST + +/* Interrupt Mask Set */ +#define E1000_IMS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_IMS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_IMS_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_IMS_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_IMS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMS_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_IMS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_IMS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_IMS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_IMS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_IMS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_IMS_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_IMS_SRPD E1000_ICR_SRPD +#define E1000_IMS_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_IMS_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_IMS_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_IMS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_IMS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_IMS_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_IMS_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_IMS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_IMS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_IMS_DSW E1000_ICR_DSW +#define E1000_IMS_PHYINT E1000_ICR_PHYINT +#define E1000_IMS_EPRST E1000_ICR_EPRST + +/* Interrupt Mask Clear */ +#define E1000_IMC_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_IMC_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_IMC_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_IMC_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_IMC_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_IMC_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_IMC_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMC_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_IMC_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_IMC_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_IMC_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_IMC_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_IMC_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_IMC_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_IMC_SRPD E1000_ICR_SRPD +#define E1000_IMC_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_IMC_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_IMC_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_IMC_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_IMC_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_IMC_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_IMC_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_IMC_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_IMC_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_IMC_DSW E1000_ICR_DSW +#define E1000_IMC_PHYINT E1000_ICR_PHYINT +#define E1000_IMC_EPRST E1000_ICR_EPRST + +/* Receive Control */ +#define E1000_RCTL_RST 0x00000001 /* Software reset */ +#define E1000_RCTL_EN 0x00000002 /* enable */ +#define E1000_RCTL_SBP 0x00000004 /* store bad packet */ +#define E1000_RCTL_UPE 0x00000008 /* unicast promiscuous enable */ +#define E1000_RCTL_MPE 0x00000010 /* multicast promiscuous enab */ +#define E1000_RCTL_LPE 0x00000020 /* long packet enable */ +#define E1000_RCTL_LBM_NO 0x00000000 /* no loopback mode */ +#define E1000_RCTL_LBM_MAC 0x00000040 /* MAC loopback mode */ +#define E1000_RCTL_LBM_SLP 0x00000080 /* serial link loopback mode */ +#define E1000_RCTL_LBM_TCVR 0x000000C0 /* tcvr loopback mode */ +#define E1000_RCTL_DTYP_MASK 0x00000C00 /* Descriptor type mask */ +#define E1000_RCTL_DTYP_PS 0x00000400 /* Packet Split descriptor */ +#define E1000_RCTL_RDMTS_HALF 0x00000000 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_QUAT 0x00000100 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_EIGTH 0x00000200 /* rx desc min threshold size */ +#define E1000_RCTL_MO_SHIFT 12 /* multicast offset shift */ +#define E1000_RCTL_MO_0 0x00000000 /* multicast offset 11:0 */ +#define E1000_RCTL_MO_1 0x00001000 /* multicast offset 12:1 */ +#define E1000_RCTL_MO_2 0x00002000 /* multicast offset 13:2 */ +#define E1000_RCTL_MO_3 0x00003000 /* multicast offset 15:4 */ +#define E1000_RCTL_MDR 0x00004000 /* multicast desc ring 0 */ +#define E1000_RCTL_BAM 0x00008000 /* broadcast enable */ +/* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */ +#define E1000_RCTL_SZ_2048 0x00000000 /* rx buffer size 2048 */ +#define E1000_RCTL_SZ_1024 0x00010000 /* rx buffer size 1024 */ +#define E1000_RCTL_SZ_512 0x00020000 /* rx buffer size 512 */ +#define E1000_RCTL_SZ_256 0x00030000 /* rx buffer size 256 */ +/* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */ +#define E1000_RCTL_SZ_16384 0x00010000 /* rx buffer size 16384 */ +#define E1000_RCTL_SZ_8192 0x00020000 /* rx buffer size 8192 */ +#define E1000_RCTL_SZ_4096 0x00030000 /* rx buffer size 4096 */ +#define E1000_RCTL_VFE 0x00040000 /* vlan filter enable */ +#define E1000_RCTL_CFIEN 0x00080000 /* canonical form enable */ +#define E1000_RCTL_CFI 0x00100000 /* canonical form indicator */ +#define E1000_RCTL_DPF 0x00400000 /* discard pause frames */ +#define E1000_RCTL_PMCF 0x00800000 /* pass MAC control frames */ +#define E1000_RCTL_BSEX 0x02000000 /* Buffer size extension */ +#define E1000_RCTL_SECRC 0x04000000 /* Strip Ethernet CRC */ +#define E1000_RCTL_FLXBUF_MASK 0x78000000 /* Flexible buffer size */ +#define E1000_RCTL_FLXBUF_SHIFT 27 /* Flexible buffer shift */ + +/* Use byte values for the following shift parameters + * Usage: + * psrctl |= (((ROUNDUP(value0, 128) >> E1000_PSRCTL_BSIZE0_SHIFT) & + * E1000_PSRCTL_BSIZE0_MASK) | + * ((ROUNDUP(value1, 1024) >> E1000_PSRCTL_BSIZE1_SHIFT) & + * E1000_PSRCTL_BSIZE1_MASK) | + * ((ROUNDUP(value2, 1024) << E1000_PSRCTL_BSIZE2_SHIFT) & + * E1000_PSRCTL_BSIZE2_MASK) | + * ((ROUNDUP(value3, 1024) << E1000_PSRCTL_BSIZE3_SHIFT) |; + * E1000_PSRCTL_BSIZE3_MASK)) + * where value0 = [128..16256], default=256 + * value1 = [1024..64512], default=4096 + * value2 = [0..64512], default=4096 + * value3 = [0..64512], default=0 + */ + +#define E1000_PSRCTL_BSIZE0_MASK 0x0000007F +#define E1000_PSRCTL_BSIZE1_MASK 0x00003F00 +#define E1000_PSRCTL_BSIZE2_MASK 0x003F0000 +#define E1000_PSRCTL_BSIZE3_MASK 0x3F000000 + +#define E1000_PSRCTL_BSIZE0_SHIFT 7 /* Shift _right_ 7 */ +#define E1000_PSRCTL_BSIZE1_SHIFT 2 /* Shift _right_ 2 */ +#define E1000_PSRCTL_BSIZE2_SHIFT 6 /* Shift _left_ 6 */ +#define E1000_PSRCTL_BSIZE3_SHIFT 14 /* Shift _left_ 14 */ + +/* SW_W_SYNC definitions */ +#define E1000_SWFW_EEP_SM 0x0001 +#define E1000_SWFW_PHY0_SM 0x0002 +#define E1000_SWFW_PHY1_SM 0x0004 +#define E1000_SWFW_MAC_CSR_SM 0x0008 + +/* Receive Descriptor */ +#define E1000_RDT_DELAY 0x0000ffff /* Delay timer (1=1024us) */ +#define E1000_RDT_FPDB 0x80000000 /* Flush descriptor block */ +#define E1000_RDLEN_LEN 0x0007ff80 /* descriptor length */ +#define E1000_RDH_RDH 0x0000ffff /* receive descriptor head */ +#define E1000_RDT_RDT 0x0000ffff /* receive descriptor tail */ + +/* Flow Control */ +#define E1000_FCRTH_RTH 0x0000FFF8 /* Mask Bits[15:3] for RTH */ +#define E1000_FCRTH_XFCE 0x80000000 /* External Flow Control Enable */ +#define E1000_FCRTL_RTL 0x0000FFF8 /* Mask Bits[15:3] for RTL */ +#define E1000_FCRTL_XONE 0x80000000 /* Enable XON frame transmission */ + +/* Header split receive */ +#define E1000_RFCTL_ISCSI_DIS 0x00000001 +#define E1000_RFCTL_ISCSI_DWC_MASK 0x0000003E +#define E1000_RFCTL_ISCSI_DWC_SHIFT 1 +#define E1000_RFCTL_NFSW_DIS 0x00000040 +#define E1000_RFCTL_NFSR_DIS 0x00000080 +#define E1000_RFCTL_NFS_VER_MASK 0x00000300 +#define E1000_RFCTL_NFS_VER_SHIFT 8 +#define E1000_RFCTL_IPV6_DIS 0x00000400 +#define E1000_RFCTL_IPV6_XSUM_DIS 0x00000800 +#define E1000_RFCTL_ACK_DIS 0x00001000 +#define E1000_RFCTL_ACKD_DIS 0x00002000 +#define E1000_RFCTL_IPFRSP_DIS 0x00004000 +#define E1000_RFCTL_EXTEN 0x00008000 +#define E1000_RFCTL_IPV6_EX_DIS 0x00010000 +#define E1000_RFCTL_NEW_IPV6_EXT_DIS 0x00020000 + +/* Receive Descriptor Control */ +#define E1000_RXDCTL_PTHRESH 0x0000003F /* RXDCTL Prefetch Threshold */ +#define E1000_RXDCTL_HTHRESH 0x00003F00 /* RXDCTL Host Threshold */ +#define E1000_RXDCTL_WTHRESH 0x003F0000 /* RXDCTL Writeback Threshold */ +#define E1000_RXDCTL_GRAN 0x01000000 /* RXDCTL Granularity */ + +/* Transmit Descriptor Control */ +#define E1000_TXDCTL_PTHRESH 0x0000003F /* TXDCTL Prefetch Threshold */ +#define E1000_TXDCTL_HTHRESH 0x00003F00 /* TXDCTL Host Threshold */ +#define E1000_TXDCTL_WTHRESH 0x003F0000 /* TXDCTL Writeback Threshold */ +#define E1000_TXDCTL_GRAN 0x01000000 /* TXDCTL Granularity */ +#define E1000_TXDCTL_LWTHRESH 0xFE000000 /* TXDCTL Low Threshold */ +#define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000 /* GRAN=1, WTHRESH=1 */ +#define E1000_TXDCTL_COUNT_DESC 0x00400000 /* Enable the counting of desc. + still to be processed. */ +/* Transmit Configuration Word */ +#define E1000_TXCW_FD 0x00000020 /* TXCW full duplex */ +#define E1000_TXCW_HD 0x00000040 /* TXCW half duplex */ +#define E1000_TXCW_PAUSE 0x00000080 /* TXCW sym pause request */ +#define E1000_TXCW_ASM_DIR 0x00000100 /* TXCW astm pause direction */ +#define E1000_TXCW_PAUSE_MASK 0x00000180 /* TXCW pause request mask */ +#define E1000_TXCW_RF 0x00003000 /* TXCW remote fault */ +#define E1000_TXCW_NP 0x00008000 /* TXCW next page */ +#define E1000_TXCW_CW 0x0000ffff /* TxConfigWord mask */ +#define E1000_TXCW_TXC 0x40000000 /* Transmit Config control */ +#define E1000_TXCW_ANE 0x80000000 /* Auto-neg enable */ + +/* Receive Configuration Word */ +#define E1000_RXCW_CW 0x0000ffff /* RxConfigWord mask */ +#define E1000_RXCW_NC 0x04000000 /* Receive config no carrier */ +#define E1000_RXCW_IV 0x08000000 /* Receive config invalid */ +#define E1000_RXCW_CC 0x10000000 /* Receive config change */ +#define E1000_RXCW_C 0x20000000 /* Receive config */ +#define E1000_RXCW_SYNCH 0x40000000 /* Receive config synch */ +#define E1000_RXCW_ANC 0x80000000 /* Auto-neg complete */ + +/* Transmit Control */ +#define E1000_TCTL_RST 0x00000001 /* software reset */ +#define E1000_TCTL_EN 0x00000002 /* enable tx */ +#define E1000_TCTL_BCE 0x00000004 /* busy check enable */ +#define E1000_TCTL_PSP 0x00000008 /* pad short packets */ +#define E1000_TCTL_CT 0x00000ff0 /* collision threshold */ +#define E1000_TCTL_COLD 0x003ff000 /* collision distance */ +#define E1000_TCTL_SWXOFF 0x00400000 /* SW Xoff transmission */ +#define E1000_TCTL_PBE 0x00800000 /* Packet Burst Enable */ +#define E1000_TCTL_RTLC 0x01000000 /* Re-transmit on late collision */ +#define E1000_TCTL_NRTU 0x02000000 /* No Re-transmit on underrun */ +#define E1000_TCTL_MULR 0x10000000 /* Multiple request support */ +/* Extended Transmit Control */ +#define E1000_TCTL_EXT_BST_MASK 0x000003FF /* Backoff Slot Time */ +#define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */ + +#define DEFAULT_80003ES2LAN_TCTL_EXT_GCEX 0x00010000 + +/* Receive Checksum Control */ +#define E1000_RXCSUM_PCSS_MASK 0x000000FF /* Packet Checksum Start */ +#define E1000_RXCSUM_IPOFL 0x00000100 /* IPv4 checksum offload */ +#define E1000_RXCSUM_TUOFL 0x00000200 /* TCP / UDP checksum offload */ +#define E1000_RXCSUM_IPV6OFL 0x00000400 /* IPv6 checksum offload */ +#define E1000_RXCSUM_IPPCSE 0x00001000 /* IP payload checksum enable */ +#define E1000_RXCSUM_PCSD 0x00002000 /* packet checksum disabled */ + +/* Multiple Receive Queue Control */ +#define E1000_MRQC_ENABLE_MASK 0x00000003 +#define E1000_MRQC_ENABLE_RSS_2Q 0x00000001 +#define E1000_MRQC_ENABLE_RSS_INT 0x00000004 +#define E1000_MRQC_RSS_FIELD_MASK 0xFFFF0000 +#define E1000_MRQC_RSS_FIELD_IPV4_TCP 0x00010000 +#define E1000_MRQC_RSS_FIELD_IPV4 0x00020000 +#define E1000_MRQC_RSS_FIELD_IPV6_TCP_EX 0x00040000 +#define E1000_MRQC_RSS_FIELD_IPV6_EX 0x00080000 +#define E1000_MRQC_RSS_FIELD_IPV6 0x00100000 +#define E1000_MRQC_RSS_FIELD_IPV6_TCP 0x00200000 + +/* Definitions for power management and wakeup registers */ +/* Wake Up Control */ +#define E1000_WUC_APME 0x00000001 /* APM Enable */ +#define E1000_WUC_PME_EN 0x00000002 /* PME Enable */ +#define E1000_WUC_PME_STATUS 0x00000004 /* PME Status */ +#define E1000_WUC_APMPME 0x00000008 /* Assert PME on APM Wakeup */ +#define E1000_WUC_SPM 0x80000000 /* Enable SPM */ + +/* Wake Up Filter Control */ +#define E1000_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */ +#define E1000_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */ +#define E1000_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */ +#define E1000_WUFC_MC 0x00000008 /* Directed Multicast Wakeup Enable */ +#define E1000_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */ +#define E1000_WUFC_ARP 0x00000020 /* ARP Request Packet Wakeup Enable */ +#define E1000_WUFC_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Enable */ +#define E1000_WUFC_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Enable */ +#define E1000_WUFC_IGNORE_TCO 0x00008000 /* Ignore WakeOn TCO packets */ +#define E1000_WUFC_FLX0 0x00010000 /* Flexible Filter 0 Enable */ +#define E1000_WUFC_FLX1 0x00020000 /* Flexible Filter 1 Enable */ +#define E1000_WUFC_FLX2 0x00040000 /* Flexible Filter 2 Enable */ +#define E1000_WUFC_FLX3 0x00080000 /* Flexible Filter 3 Enable */ +#define E1000_WUFC_ALL_FILTERS 0x000F00FF /* Mask for all wakeup filters */ +#define E1000_WUFC_FLX_OFFSET 16 /* Offset to the Flexible Filters bits */ +#define E1000_WUFC_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */ + +/* Wake Up Status */ +#define E1000_WUS_LNKC 0x00000001 /* Link Status Changed */ +#define E1000_WUS_MAG 0x00000002 /* Magic Packet Received */ +#define E1000_WUS_EX 0x00000004 /* Directed Exact Received */ +#define E1000_WUS_MC 0x00000008 /* Directed Multicast Received */ +#define E1000_WUS_BC 0x00000010 /* Broadcast Received */ +#define E1000_WUS_ARP 0x00000020 /* ARP Request Packet Received */ +#define E1000_WUS_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Received */ +#define E1000_WUS_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Received */ +#define E1000_WUS_FLX0 0x00010000 /* Flexible Filter 0 Match */ +#define E1000_WUS_FLX1 0x00020000 /* Flexible Filter 1 Match */ +#define E1000_WUS_FLX2 0x00040000 /* Flexible Filter 2 Match */ +#define E1000_WUS_FLX3 0x00080000 /* Flexible Filter 3 Match */ +#define E1000_WUS_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */ + +/* Management Control */ +#define E1000_MANC_SMBUS_EN 0x00000001 /* SMBus Enabled - RO */ +#define E1000_MANC_ASF_EN 0x00000002 /* ASF Enabled - RO */ +#define E1000_MANC_R_ON_FORCE 0x00000004 /* Reset on Force TCO - RO */ +#define E1000_MANC_RMCP_EN 0x00000100 /* Enable RCMP 026Fh Filtering */ +#define E1000_MANC_0298_EN 0x00000200 /* Enable RCMP 0298h Filtering */ +#define E1000_MANC_IPV4_EN 0x00000400 /* Enable IPv4 */ +#define E1000_MANC_IPV6_EN 0x00000800 /* Enable IPv6 */ +#define E1000_MANC_SNAP_EN 0x00001000 /* Accept LLC/SNAP */ +#define E1000_MANC_ARP_EN 0x00002000 /* Enable ARP Request Filtering */ +#define E1000_MANC_NEIGHBOR_EN 0x00004000 /* Enable Neighbor Discovery + * Filtering */ +#define E1000_MANC_ARP_RES_EN 0x00008000 /* Enable ARP response Filtering */ +#define E1000_MANC_TCO_RESET 0x00010000 /* TCO Reset Occurred */ +#define E1000_MANC_RCV_TCO_EN 0x00020000 /* Receive TCO Packets Enabled */ +#define E1000_MANC_REPORT_STATUS 0x00040000 /* Status Reporting Enabled */ +#define E1000_MANC_RCV_ALL 0x00080000 /* Receive All Enabled */ +#define E1000_MANC_BLK_PHY_RST_ON_IDE 0x00040000 /* Block phy resets */ +#define E1000_MANC_EN_MAC_ADDR_FILTER 0x00100000 /* Enable MAC address + * filtering */ +#define E1000_MANC_EN_MNG2HOST 0x00200000 /* Enable MNG packets to host + * memory */ +#define E1000_MANC_EN_IP_ADDR_FILTER 0x00400000 /* Enable IP address + * filtering */ +#define E1000_MANC_EN_XSUM_FILTER 0x00800000 /* Enable checksum filtering */ +#define E1000_MANC_BR_EN 0x01000000 /* Enable broadcast filtering */ +#define E1000_MANC_SMB_REQ 0x01000000 /* SMBus Request */ +#define E1000_MANC_SMB_GNT 0x02000000 /* SMBus Grant */ +#define E1000_MANC_SMB_CLK_IN 0x04000000 /* SMBus Clock In */ +#define E1000_MANC_SMB_DATA_IN 0x08000000 /* SMBus Data In */ +#define E1000_MANC_SMB_DATA_OUT 0x10000000 /* SMBus Data Out */ +#define E1000_MANC_SMB_CLK_OUT 0x20000000 /* SMBus Clock Out */ + +#define E1000_MANC_SMB_DATA_OUT_SHIFT 28 /* SMBus Data Out Shift */ +#define E1000_MANC_SMB_CLK_OUT_SHIFT 29 /* SMBus Clock Out Shift */ + +/* SW Semaphore Register */ +#define E1000_SWSM_SMBI 0x00000001 /* Driver Semaphore bit */ +#define E1000_SWSM_SWESMBI 0x00000002 /* FW Semaphore bit */ +#define E1000_SWSM_WMNG 0x00000004 /* Wake MNG Clock */ +#define E1000_SWSM_DRV_LOAD 0x00000008 /* Driver Loaded Bit */ + +/* FW Semaphore Register */ +#define E1000_FWSM_MODE_MASK 0x0000000E /* FW mode */ +#define E1000_FWSM_MODE_SHIFT 1 +#define E1000_FWSM_FW_VALID 0x00008000 /* FW established a valid mode */ + +#define E1000_FWSM_RSPCIPHY 0x00000040 /* Reset PHY on PCI reset */ +#define E1000_FWSM_DISSW 0x10000000 /* FW disable SW Write Access */ +#define E1000_FWSM_SKUSEL_MASK 0x60000000 /* LAN SKU select */ +#define E1000_FWSM_SKUEL_SHIFT 29 +#define E1000_FWSM_SKUSEL_EMB 0x0 /* Embedded SKU */ +#define E1000_FWSM_SKUSEL_CONS 0x1 /* Consumer SKU */ +#define E1000_FWSM_SKUSEL_PERF_100 0x2 /* Perf & Corp 10/100 SKU */ +#define E1000_FWSM_SKUSEL_PERF_GBE 0x3 /* Perf & Copr GbE SKU */ + +/* FFLT Debug Register */ +#define E1000_FFLT_DBG_INVC 0x00100000 /* Invalid /C/ code handling */ + +typedef enum { + e1000_mng_mode_none = 0, + e1000_mng_mode_asf, + e1000_mng_mode_pt, + e1000_mng_mode_ipmi, + e1000_mng_mode_host_interface_only +} e1000_mng_mode; + +/* Host Inteface Control Register */ +#define E1000_HICR_EN 0x00000001 /* Enable Bit - RO */ +#define E1000_HICR_C 0x00000002 /* Driver sets this bit when done + * to put command in RAM */ +#define E1000_HICR_SV 0x00000004 /* Status Validity */ +#define E1000_HICR_FWR 0x00000080 /* FW reset. Set by the Host */ + +/* Host Interface Command Interface - Address range 0x8800-0x8EFF */ +#define E1000_HI_MAX_DATA_LENGTH 252 /* Host Interface data length */ +#define E1000_HI_MAX_BLOCK_BYTE_LENGTH 1792 /* Number of bytes in range */ +#define E1000_HI_MAX_BLOCK_DWORD_LENGTH 448 /* Number of dwords in range */ +#define E1000_HI_COMMAND_TIMEOUT 500 /* Time in ms to process HI command */ + +struct e1000_host_command_header { + u8 command_id; + u8 command_length; + u8 command_options; /* I/F bits for command, status for return */ + u8 checksum; +}; +struct e1000_host_command_info { + struct e1000_host_command_header command_header; /* Command Head/Command Result Head has 4 bytes */ + u8 command_data[E1000_HI_MAX_DATA_LENGTH]; /* Command data can length 0..252 */ +}; + +/* Host SMB register #0 */ +#define E1000_HSMC0R_CLKIN 0x00000001 /* SMB Clock in */ +#define E1000_HSMC0R_DATAIN 0x00000002 /* SMB Data in */ +#define E1000_HSMC0R_DATAOUT 0x00000004 /* SMB Data out */ +#define E1000_HSMC0R_CLKOUT 0x00000008 /* SMB Clock out */ + +/* Host SMB register #1 */ +#define E1000_HSMC1R_CLKIN E1000_HSMC0R_CLKIN +#define E1000_HSMC1R_DATAIN E1000_HSMC0R_DATAIN +#define E1000_HSMC1R_DATAOUT E1000_HSMC0R_DATAOUT +#define E1000_HSMC1R_CLKOUT E1000_HSMC0R_CLKOUT + +/* FW Status Register */ +#define E1000_FWSTS_FWS_MASK 0x000000FF /* FW Status */ + +/* Wake Up Packet Length */ +#define E1000_WUPL_LENGTH_MASK 0x0FFF /* Only the lower 12 bits are valid */ + +#define E1000_MDALIGN 4096 + +/* PCI-Ex registers*/ + +/* PCI-Ex Control Register */ +#define E1000_GCR_RXD_NO_SNOOP 0x00000001 +#define E1000_GCR_RXDSCW_NO_SNOOP 0x00000002 +#define E1000_GCR_RXDSCR_NO_SNOOP 0x00000004 +#define E1000_GCR_TXD_NO_SNOOP 0x00000008 +#define E1000_GCR_TXDSCW_NO_SNOOP 0x00000010 +#define E1000_GCR_TXDSCR_NO_SNOOP 0x00000020 + +#define PCI_EX_NO_SNOOP_ALL (E1000_GCR_RXD_NO_SNOOP | \ + E1000_GCR_RXDSCW_NO_SNOOP | \ + E1000_GCR_RXDSCR_NO_SNOOP | \ + E1000_GCR_TXD_NO_SNOOP | \ + E1000_GCR_TXDSCW_NO_SNOOP | \ + E1000_GCR_TXDSCR_NO_SNOOP) + +#define PCI_EX_82566_SNOOP_ALL PCI_EX_NO_SNOOP_ALL + +#define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000 +/* Function Active and Power State to MNG */ +#define E1000_FACTPS_FUNC0_POWER_STATE_MASK 0x00000003 +#define E1000_FACTPS_LAN0_VALID 0x00000004 +#define E1000_FACTPS_FUNC0_AUX_EN 0x00000008 +#define E1000_FACTPS_FUNC1_POWER_STATE_MASK 0x000000C0 +#define E1000_FACTPS_FUNC1_POWER_STATE_SHIFT 6 +#define E1000_FACTPS_LAN1_VALID 0x00000100 +#define E1000_FACTPS_FUNC1_AUX_EN 0x00000200 +#define E1000_FACTPS_FUNC2_POWER_STATE_MASK 0x00003000 +#define E1000_FACTPS_FUNC2_POWER_STATE_SHIFT 12 +#define E1000_FACTPS_IDE_ENABLE 0x00004000 +#define E1000_FACTPS_FUNC2_AUX_EN 0x00008000 +#define E1000_FACTPS_FUNC3_POWER_STATE_MASK 0x000C0000 +#define E1000_FACTPS_FUNC3_POWER_STATE_SHIFT 18 +#define E1000_FACTPS_SP_ENABLE 0x00100000 +#define E1000_FACTPS_FUNC3_AUX_EN 0x00200000 +#define E1000_FACTPS_FUNC4_POWER_STATE_MASK 0x03000000 +#define E1000_FACTPS_FUNC4_POWER_STATE_SHIFT 24 +#define E1000_FACTPS_IPMI_ENABLE 0x04000000 +#define E1000_FACTPS_FUNC4_AUX_EN 0x08000000 +#define E1000_FACTPS_MNGCG 0x20000000 +#define E1000_FACTPS_LAN_FUNC_SEL 0x40000000 +#define E1000_FACTPS_PM_STATE_CHANGED 0x80000000 + +/* PCI-Ex Config Space */ +#define PCI_EX_LINK_STATUS 0x12 +#define PCI_EX_LINK_WIDTH_MASK 0x3F0 +#define PCI_EX_LINK_WIDTH_SHIFT 4 + +/* EEPROM Commands - Microwire */ +#define EEPROM_READ_OPCODE_MICROWIRE 0x6 /* EEPROM read opcode */ +#define EEPROM_WRITE_OPCODE_MICROWIRE 0x5 /* EEPROM write opcode */ +#define EEPROM_ERASE_OPCODE_MICROWIRE 0x7 /* EEPROM erase opcode */ +#define EEPROM_EWEN_OPCODE_MICROWIRE 0x13 /* EEPROM erase/write enable */ +#define EEPROM_EWDS_OPCODE_MICROWIRE 0x10 /* EEPROM erast/write disable */ + +/* EEPROM Commands - SPI */ +#define EEPROM_MAX_RETRY_SPI 5000 /* Max wait of 5ms, for RDY signal */ +#define EEPROM_READ_OPCODE_SPI 0x03 /* EEPROM read opcode */ +#define EEPROM_WRITE_OPCODE_SPI 0x02 /* EEPROM write opcode */ +#define EEPROM_A8_OPCODE_SPI 0x08 /* opcode bit-3 = address bit-8 */ +#define EEPROM_WREN_OPCODE_SPI 0x06 /* EEPROM set Write Enable latch */ +#define EEPROM_WRDI_OPCODE_SPI 0x04 /* EEPROM reset Write Enable latch */ +#define EEPROM_RDSR_OPCODE_SPI 0x05 /* EEPROM read Status register */ +#define EEPROM_WRSR_OPCODE_SPI 0x01 /* EEPROM write Status register */ +#define EEPROM_ERASE4K_OPCODE_SPI 0x20 /* EEPROM ERASE 4KB */ +#define EEPROM_ERASE64K_OPCODE_SPI 0xD8 /* EEPROM ERASE 64KB */ +#define EEPROM_ERASE256_OPCODE_SPI 0xDB /* EEPROM ERASE 256B */ + +/* EEPROM Size definitions */ +#define EEPROM_WORD_SIZE_SHIFT 6 +#define EEPROM_SIZE_SHIFT 10 +#define EEPROM_SIZE_MASK 0x1C00 + +/* EEPROM Word Offsets */ +#define EEPROM_COMPAT 0x0003 +#define EEPROM_ID_LED_SETTINGS 0x0004 +#define EEPROM_VERSION 0x0005 +#define EEPROM_SERDES_AMPLITUDE 0x0006 /* For SERDES output amplitude adjustment. */ +#define EEPROM_PHY_CLASS_WORD 0x0007 +#define EEPROM_INIT_CONTROL1_REG 0x000A +#define EEPROM_INIT_CONTROL2_REG 0x000F +#define EEPROM_SWDEF_PINS_CTRL_PORT_1 0x0010 +#define EEPROM_INIT_CONTROL3_PORT_B 0x0014 +#define EEPROM_INIT_3GIO_3 0x001A +#define EEPROM_SWDEF_PINS_CTRL_PORT_0 0x0020 +#define EEPROM_INIT_CONTROL3_PORT_A 0x0024 +#define EEPROM_CFG 0x0012 +#define EEPROM_FLASH_VERSION 0x0032 +#define EEPROM_CHECKSUM_REG 0x003F + +#define E1000_EEPROM_CFG_DONE 0x00040000 /* MNG config cycle done */ +#define E1000_EEPROM_CFG_DONE_PORT_1 0x00080000 /* ...for second port */ + +/* Word definitions for ID LED Settings */ +#define ID_LED_RESERVED_0000 0x0000 +#define ID_LED_RESERVED_FFFF 0xFFFF +#define ID_LED_RESERVED_82573 0xF746 +#define ID_LED_DEFAULT_82573 0x1811 +#define ID_LED_DEFAULT ((ID_LED_OFF1_ON2 << 12) | \ + (ID_LED_OFF1_OFF2 << 8) | \ + (ID_LED_DEF1_DEF2 << 4) | \ + (ID_LED_DEF1_DEF2)) +#define ID_LED_DEFAULT_ICH8LAN ((ID_LED_DEF1_DEF2 << 12) | \ + (ID_LED_DEF1_OFF2 << 8) | \ + (ID_LED_DEF1_ON2 << 4) | \ + (ID_LED_DEF1_DEF2)) +#define ID_LED_DEF1_DEF2 0x1 +#define ID_LED_DEF1_ON2 0x2 +#define ID_LED_DEF1_OFF2 0x3 +#define ID_LED_ON1_DEF2 0x4 +#define ID_LED_ON1_ON2 0x5 +#define ID_LED_ON1_OFF2 0x6 +#define ID_LED_OFF1_DEF2 0x7 +#define ID_LED_OFF1_ON2 0x8 +#define ID_LED_OFF1_OFF2 0x9 + +#define IGP_ACTIVITY_LED_MASK 0xFFFFF0FF +#define IGP_ACTIVITY_LED_ENABLE 0x0300 +#define IGP_LED3_MODE 0x07000000 + + +/* Mask bits for SERDES amplitude adjustment in Word 6 of the EEPROM */ +#define EEPROM_SERDES_AMPLITUDE_MASK 0x000F + +/* Mask bit for PHY class in Word 7 of the EEPROM */ +#define EEPROM_PHY_CLASS_A 0x8000 + +/* Mask bits for fields in Word 0x0a of the EEPROM */ +#define EEPROM_WORD0A_ILOS 0x0010 +#define EEPROM_WORD0A_SWDPIO 0x01E0 +#define EEPROM_WORD0A_LRST 0x0200 +#define EEPROM_WORD0A_FD 0x0400 +#define EEPROM_WORD0A_66MHZ 0x0800 + +/* Mask bits for fields in Word 0x0f of the EEPROM */ +#define EEPROM_WORD0F_PAUSE_MASK 0x3000 +#define EEPROM_WORD0F_PAUSE 0x1000 +#define EEPROM_WORD0F_ASM_DIR 0x2000 +#define EEPROM_WORD0F_ANE 0x0800 +#define EEPROM_WORD0F_SWPDIO_EXT 0x00F0 +#define EEPROM_WORD0F_LPLU 0x0001 + +/* Mask bits for fields in Word 0x10/0x20 of the EEPROM */ +#define EEPROM_WORD1020_GIGA_DISABLE 0x0010 +#define EEPROM_WORD1020_GIGA_DISABLE_NON_D0A 0x0008 + +/* Mask bits for fields in Word 0x1a of the EEPROM */ +#define EEPROM_WORD1A_ASPM_MASK 0x000C + +/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */ +#define EEPROM_SUM 0xBABA + +/* EEPROM Map defines (WORD OFFSETS)*/ +#define EEPROM_NODE_ADDRESS_BYTE_0 0 +#define EEPROM_PBA_BYTE_1 8 + +#define EEPROM_RESERVED_WORD 0xFFFF + +/* EEPROM Map Sizes (Byte Counts) */ +#define PBA_SIZE 4 + +/* Collision related configuration parameters */ +#define E1000_COLLISION_THRESHOLD 15 +#define E1000_CT_SHIFT 4 +/* Collision distance is a 0-based value that applies to + * half-duplex-capable hardware only. */ +#define E1000_COLLISION_DISTANCE 63 +#define E1000_COLLISION_DISTANCE_82542 64 +#define E1000_FDX_COLLISION_DISTANCE E1000_COLLISION_DISTANCE +#define E1000_HDX_COLLISION_DISTANCE E1000_COLLISION_DISTANCE +#define E1000_COLD_SHIFT 12 + +/* Number of Transmit and Receive Descriptors must be a multiple of 8 */ +#define REQ_TX_DESCRIPTOR_MULTIPLE 8 +#define REQ_RX_DESCRIPTOR_MULTIPLE 8 + +/* Default values for the transmit IPG register */ +#define DEFAULT_82542_TIPG_IPGT 10 +#define DEFAULT_82543_TIPG_IPGT_FIBER 9 +#define DEFAULT_82543_TIPG_IPGT_COPPER 8 + +#define E1000_TIPG_IPGT_MASK 0x000003FF +#define E1000_TIPG_IPGR1_MASK 0x000FFC00 +#define E1000_TIPG_IPGR2_MASK 0x3FF00000 + +#define DEFAULT_82542_TIPG_IPGR1 2 +#define DEFAULT_82543_TIPG_IPGR1 8 +#define E1000_TIPG_IPGR1_SHIFT 10 + +#define DEFAULT_82542_TIPG_IPGR2 10 +#define DEFAULT_82543_TIPG_IPGR2 6 +#define DEFAULT_80003ES2LAN_TIPG_IPGR2 7 +#define E1000_TIPG_IPGR2_SHIFT 20 + +#define DEFAULT_80003ES2LAN_TIPG_IPGT_10_100 0x00000009 +#define DEFAULT_80003ES2LAN_TIPG_IPGT_1000 0x00000008 +#define E1000_TXDMAC_DPP 0x00000001 + +/* Adaptive IFS defines */ +#define TX_THRESHOLD_START 8 +#define TX_THRESHOLD_INCREMENT 10 +#define TX_THRESHOLD_DECREMENT 1 +#define TX_THRESHOLD_STOP 190 +#define TX_THRESHOLD_DISABLE 0 +#define TX_THRESHOLD_TIMER_MS 10000 +#define MIN_NUM_XMITS 1000 +#define IFS_MAX 80 +#define IFS_STEP 10 +#define IFS_MIN 40 +#define IFS_RATIO 4 + +/* Extended Configuration Control and Size */ +#define E1000_EXTCNF_CTRL_PCIE_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_PHY_WRITE_ENABLE 0x00000002 +#define E1000_EXTCNF_CTRL_D_UD_ENABLE 0x00000004 +#define E1000_EXTCNF_CTRL_D_UD_LATENCY 0x00000008 +#define E1000_EXTCNF_CTRL_D_UD_OWNER 0x00000010 +#define E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP 0x00000020 +#define E1000_EXTCNF_CTRL_MDIO_HW_OWNERSHIP 0x00000040 +#define E1000_EXTCNF_CTRL_EXT_CNF_POINTER 0x0FFF0000 + +#define E1000_EXTCNF_SIZE_EXT_PHY_LENGTH 0x000000FF +#define E1000_EXTCNF_SIZE_EXT_DOCK_LENGTH 0x0000FF00 +#define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH 0x00FF0000 +#define E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_SWFLAG 0x00000020 + +/* PBA constants */ +#define E1000_PBA_8K 0x0008 /* 8KB, default Rx allocation */ +#define E1000_PBA_12K 0x000C /* 12KB, default Rx allocation */ +#define E1000_PBA_16K 0x0010 /* 16KB, default TX allocation */ +#define E1000_PBA_20K 0x0014 +#define E1000_PBA_22K 0x0016 +#define E1000_PBA_24K 0x0018 +#define E1000_PBA_30K 0x001E +#define E1000_PBA_32K 0x0020 +#define E1000_PBA_34K 0x0022 +#define E1000_PBA_38K 0x0026 +#define E1000_PBA_40K 0x0028 +#define E1000_PBA_48K 0x0030 /* 48KB, default RX allocation */ + +#define E1000_PBS_16K E1000_PBA_16K + +/* Flow Control Constants */ +#define FLOW_CONTROL_ADDRESS_LOW 0x00C28001 +#define FLOW_CONTROL_ADDRESS_HIGH 0x00000100 +#define FLOW_CONTROL_TYPE 0x8808 + +/* The historical defaults for the flow control values are given below. */ +#define FC_DEFAULT_HI_THRESH (0x8000) /* 32KB */ +#define FC_DEFAULT_LO_THRESH (0x4000) /* 16KB */ +#define FC_DEFAULT_TX_TIMER (0x100) /* ~130 us */ + +/* PCIX Config space */ +#define PCIX_COMMAND_REGISTER 0xE6 +#define PCIX_STATUS_REGISTER_LO 0xE8 +#define PCIX_STATUS_REGISTER_HI 0xEA + +#define PCIX_COMMAND_MMRBC_MASK 0x000C +#define PCIX_COMMAND_MMRBC_SHIFT 0x2 +#define PCIX_STATUS_HI_MMRBC_MASK 0x0060 +#define PCIX_STATUS_HI_MMRBC_SHIFT 0x5 +#define PCIX_STATUS_HI_MMRBC_4K 0x3 +#define PCIX_STATUS_HI_MMRBC_2K 0x2 + + +/* Number of bits required to shift right the "pause" bits from the + * EEPROM (bits 13:12) to the "pause" (bits 8:7) field in the TXCW register. + */ +#define PAUSE_SHIFT 5 + +/* Number of bits required to shift left the "SWDPIO" bits from the + * EEPROM (bits 8:5) to the "SWDPIO" (bits 25:22) field in the CTRL register. + */ +#define SWDPIO_SHIFT 17 + +/* Number of bits required to shift left the "SWDPIO_EXT" bits from the + * EEPROM word F (bits 7:4) to the bits 11:8 of The Extended CTRL register. + */ +#define SWDPIO__EXT_SHIFT 4 + +/* Number of bits required to shift left the "ILOS" bit from the EEPROM + * (bit 4) to the "ILOS" (bit 7) field in the CTRL register. + */ +#define ILOS_SHIFT 3 + + +#define RECEIVE_BUFFER_ALIGN_SIZE (256) + +/* Number of milliseconds we wait for auto-negotiation to complete */ +#define LINK_UP_TIMEOUT 500 + +/* Number of 100 microseconds we wait for PCI Express master disable */ +#define MASTER_DISABLE_TIMEOUT 800 +/* Number of milliseconds we wait for Eeprom auto read bit done after MAC reset */ +#define AUTO_READ_DONE_TIMEOUT 10 +/* Number of milliseconds we wait for PHY configuration done after MAC reset */ +#define PHY_CFG_TIMEOUT 100 + +#define E1000_TX_BUFFER_SIZE ((u32)1514) + +/* The carrier extension symbol, as received by the NIC. */ +#define CARRIER_EXTENSION 0x0F + +/* TBI_ACCEPT macro definition: + * + * This macro requires: + * adapter = a pointer to struct e1000_hw + * status = the 8 bit status field of the RX descriptor with EOP set + * error = the 8 bit error field of the RX descriptor with EOP set + * length = the sum of all the length fields of the RX descriptors that + * make up the current frame + * last_byte = the last byte of the frame DMAed by the hardware + * max_frame_length = the maximum frame length we want to accept. + * min_frame_length = the minimum frame length we want to accept. + * + * This macro is a conditional that should be used in the interrupt + * handler's Rx processing routine when RxErrors have been detected. + * + * Typical use: + * ... + * if (TBI_ACCEPT) { + * accept_frame = true; + * e1000_tbi_adjust_stats(adapter, MacAddress); + * frame_length--; + * } else { + * accept_frame = false; + * } + * ... + */ + +#define TBI_ACCEPT(adapter, status, errors, length, last_byte) \ + ((adapter)->tbi_compatibility_on && \ + (((errors) & E1000_RXD_ERR_FRAME_ERR_MASK) == E1000_RXD_ERR_CE) && \ + ((last_byte) == CARRIER_EXTENSION) && \ + (((status) & E1000_RXD_STAT_VP) ? \ + (((length) > ((adapter)->min_frame_size - VLAN_TAG_SIZE)) && \ + ((length) <= ((adapter)->max_frame_size + 1))) : \ + (((length) > (adapter)->min_frame_size) && \ + ((length) <= ((adapter)->max_frame_size + VLAN_TAG_SIZE + 1))))) + + +/* Structures, enums, and macros for the PHY */ + +/* Bit definitions for the Management Data IO (MDIO) and Management Data + * Clock (MDC) pins in the Device Control Register. + */ +#define E1000_CTRL_PHY_RESET_DIR E1000_CTRL_SWDPIO0 +#define E1000_CTRL_PHY_RESET E1000_CTRL_SWDPIN0 +#define E1000_CTRL_MDIO_DIR E1000_CTRL_SWDPIO2 +#define E1000_CTRL_MDIO E1000_CTRL_SWDPIN2 +#define E1000_CTRL_MDC_DIR E1000_CTRL_SWDPIO3 +#define E1000_CTRL_MDC E1000_CTRL_SWDPIN3 +#define E1000_CTRL_PHY_RESET_DIR4 E1000_CTRL_EXT_SDP4_DIR +#define E1000_CTRL_PHY_RESET4 E1000_CTRL_EXT_SDP4_DATA + +/* PHY 1000 MII Register/Bit Definitions */ +/* PHY Registers defined by IEEE */ +#define PHY_CTRL 0x00 /* Control Register */ +#define PHY_STATUS 0x01 /* Status Regiser */ +#define PHY_ID1 0x02 /* Phy Id Reg (word 1) */ +#define PHY_ID2 0x03 /* Phy Id Reg (word 2) */ +#define PHY_AUTONEG_ADV 0x04 /* Autoneg Advertisement */ +#define PHY_LP_ABILITY 0x05 /* Link Partner Ability (Base Page) */ +#define PHY_AUTONEG_EXP 0x06 /* Autoneg Expansion Reg */ +#define PHY_NEXT_PAGE_TX 0x07 /* Next Page TX */ +#define PHY_LP_NEXT_PAGE 0x08 /* Link Partner Next Page */ +#define PHY_1000T_CTRL 0x09 /* 1000Base-T Control Reg */ +#define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Reg */ +#define PHY_EXT_STATUS 0x0F /* Extended Status Reg */ + +#define MAX_PHY_REG_ADDRESS 0x1F /* 5 bit address bus (0-0x1F) */ +#define MAX_PHY_MULTI_PAGE_REG 0xF /* Registers equal on all pages */ + +/* M88E1000 Specific Registers */ +#define M88E1000_PHY_SPEC_CTRL 0x10 /* PHY Specific Control Register */ +#define M88E1000_PHY_SPEC_STATUS 0x11 /* PHY Specific Status Register */ +#define M88E1000_INT_ENABLE 0x12 /* Interrupt Enable Register */ +#define M88E1000_INT_STATUS 0x13 /* Interrupt Status Register */ +#define M88E1000_EXT_PHY_SPEC_CTRL 0x14 /* Extended PHY Specific Control */ +#define M88E1000_RX_ERR_CNTR 0x15 /* Receive Error Counter */ + +#define M88E1000_PHY_EXT_CTRL 0x1A /* PHY extend control register */ +#define M88E1000_PHY_PAGE_SELECT 0x1D /* Reg 29 for page number setting */ +#define M88E1000_PHY_GEN_CONTROL 0x1E /* Its meaning depends on reg 29 */ +#define M88E1000_PHY_VCO_REG_BIT8 0x100 /* Bits 8 & 11 are adjusted for */ +#define M88E1000_PHY_VCO_REG_BIT11 0x800 /* improved BER performance */ + +#define IGP01E1000_IEEE_REGS_PAGE 0x0000 +#define IGP01E1000_IEEE_RESTART_AUTONEG 0x3300 +#define IGP01E1000_IEEE_FORCE_GIGA 0x0140 + +/* IGP01E1000 Specific Registers */ +#define IGP01E1000_PHY_PORT_CONFIG 0x10 /* PHY Specific Port Config Register */ +#define IGP01E1000_PHY_PORT_STATUS 0x11 /* PHY Specific Status Register */ +#define IGP01E1000_PHY_PORT_CTRL 0x12 /* PHY Specific Control Register */ +#define IGP01E1000_PHY_LINK_HEALTH 0x13 /* PHY Link Health Register */ +#define IGP01E1000_GMII_FIFO 0x14 /* GMII FIFO Register */ +#define IGP01E1000_PHY_CHANNEL_QUALITY 0x15 /* PHY Channel Quality Register */ +#define IGP02E1000_PHY_POWER_MGMT 0x19 +#define IGP01E1000_PHY_PAGE_SELECT 0x1F /* PHY Page Select Core Register */ + +/* IGP01E1000 AGC Registers - stores the cable length values*/ +#define IGP01E1000_PHY_AGC_A 0x1172 +#define IGP01E1000_PHY_AGC_B 0x1272 +#define IGP01E1000_PHY_AGC_C 0x1472 +#define IGP01E1000_PHY_AGC_D 0x1872 + +/* IGP02E1000 AGC Registers for cable length values */ +#define IGP02E1000_PHY_AGC_A 0x11B1 +#define IGP02E1000_PHY_AGC_B 0x12B1 +#define IGP02E1000_PHY_AGC_C 0x14B1 +#define IGP02E1000_PHY_AGC_D 0x18B1 + +/* IGP01E1000 DSP Reset Register */ +#define IGP01E1000_PHY_DSP_RESET 0x1F33 +#define IGP01E1000_PHY_DSP_SET 0x1F71 +#define IGP01E1000_PHY_DSP_FFE 0x1F35 + +#define IGP01E1000_PHY_CHANNEL_NUM 4 +#define IGP02E1000_PHY_CHANNEL_NUM 4 + +#define IGP01E1000_PHY_AGC_PARAM_A 0x1171 +#define IGP01E1000_PHY_AGC_PARAM_B 0x1271 +#define IGP01E1000_PHY_AGC_PARAM_C 0x1471 +#define IGP01E1000_PHY_AGC_PARAM_D 0x1871 + +#define IGP01E1000_PHY_EDAC_MU_INDEX 0xC000 +#define IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS 0x8000 + +#define IGP01E1000_PHY_ANALOG_TX_STATE 0x2890 +#define IGP01E1000_PHY_ANALOG_CLASS_A 0x2000 +#define IGP01E1000_PHY_FORCE_ANALOG_ENABLE 0x0004 +#define IGP01E1000_PHY_DSP_FFE_CM_CP 0x0069 + +#define IGP01E1000_PHY_DSP_FFE_DEFAULT 0x002A +/* IGP01E1000 PCS Initialization register - stores the polarity status when + * speed = 1000 Mbps. */ +#define IGP01E1000_PHY_PCS_INIT_REG 0x00B4 +#define IGP01E1000_PHY_PCS_CTRL_REG 0x00B5 + +#define IGP01E1000_ANALOG_REGS_PAGE 0x20C0 + +/* Bits... + * 15-5: page + * 4-0: register offset + */ +#define GG82563_PAGE_SHIFT 5 +#define GG82563_REG(page, reg) \ + (((page) << GG82563_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS)) +#define GG82563_MIN_ALT_REG 30 + +/* GG82563 Specific Registers */ +#define GG82563_PHY_SPEC_CTRL \ + GG82563_REG(0, 16) /* PHY Specific Control */ +#define GG82563_PHY_SPEC_STATUS \ + GG82563_REG(0, 17) /* PHY Specific Status */ +#define GG82563_PHY_INT_ENABLE \ + GG82563_REG(0, 18) /* Interrupt Enable */ +#define GG82563_PHY_SPEC_STATUS_2 \ + GG82563_REG(0, 19) /* PHY Specific Status 2 */ +#define GG82563_PHY_RX_ERR_CNTR \ + GG82563_REG(0, 21) /* Receive Error Counter */ +#define GG82563_PHY_PAGE_SELECT \ + GG82563_REG(0, 22) /* Page Select */ +#define GG82563_PHY_SPEC_CTRL_2 \ + GG82563_REG(0, 26) /* PHY Specific Control 2 */ +#define GG82563_PHY_PAGE_SELECT_ALT \ + GG82563_REG(0, 29) /* Alternate Page Select */ +#define GG82563_PHY_TEST_CLK_CTRL \ + GG82563_REG(0, 30) /* Test Clock Control (use reg. 29 to select) */ + +#define GG82563_PHY_MAC_SPEC_CTRL \ + GG82563_REG(2, 21) /* MAC Specific Control Register */ +#define GG82563_PHY_MAC_SPEC_CTRL_2 \ + GG82563_REG(2, 26) /* MAC Specific Control 2 */ + +#define GG82563_PHY_DSP_DISTANCE \ + GG82563_REG(5, 26) /* DSP Distance */ + +/* Page 193 - Port Control Registers */ +#define GG82563_PHY_KMRN_MODE_CTRL \ + GG82563_REG(193, 16) /* Kumeran Mode Control */ +#define GG82563_PHY_PORT_RESET \ + GG82563_REG(193, 17) /* Port Reset */ +#define GG82563_PHY_REVISION_ID \ + GG82563_REG(193, 18) /* Revision ID */ +#define GG82563_PHY_DEVICE_ID \ + GG82563_REG(193, 19) /* Device ID */ +#define GG82563_PHY_PWR_MGMT_CTRL \ + GG82563_REG(193, 20) /* Power Management Control */ +#define GG82563_PHY_RATE_ADAPT_CTRL \ + GG82563_REG(193, 25) /* Rate Adaptation Control */ + +/* Page 194 - KMRN Registers */ +#define GG82563_PHY_KMRN_FIFO_CTRL_STAT \ + GG82563_REG(194, 16) /* FIFO's Control/Status */ +#define GG82563_PHY_KMRN_CTRL \ + GG82563_REG(194, 17) /* Control */ +#define GG82563_PHY_INBAND_CTRL \ + GG82563_REG(194, 18) /* Inband Control */ +#define GG82563_PHY_KMRN_DIAGNOSTIC \ + GG82563_REG(194, 19) /* Diagnostic */ +#define GG82563_PHY_ACK_TIMEOUTS \ + GG82563_REG(194, 20) /* Acknowledge Timeouts */ +#define GG82563_PHY_ADV_ABILITY \ + GG82563_REG(194, 21) /* Advertised Ability */ +#define GG82563_PHY_LINK_PARTNER_ADV_ABILITY \ + GG82563_REG(194, 23) /* Link Partner Advertised Ability */ +#define GG82563_PHY_ADV_NEXT_PAGE \ + GG82563_REG(194, 24) /* Advertised Next Page */ +#define GG82563_PHY_LINK_PARTNER_ADV_NEXT_PAGE \ + GG82563_REG(194, 25) /* Link Partner Advertised Next page */ +#define GG82563_PHY_KMRN_MISC \ + GG82563_REG(194, 26) /* Misc. */ + +/* PHY Control Register */ +#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */ +#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */ +#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */ +#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */ +#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */ +#define MII_CR_POWER_DOWN 0x0800 /* Power down */ +#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */ +#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */ +#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */ +#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */ + +/* PHY Status Register */ +#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */ +#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */ +#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */ +#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */ +#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */ +#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */ +#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */ +#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */ +#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */ +#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */ +#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */ +#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */ +#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */ +#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */ +#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */ + +/* Autoneg Advertisement Register */ +#define NWAY_AR_SELECTOR_FIELD 0x0001 /* indicates IEEE 802.3 CSMA/CD */ +#define NWAY_AR_10T_HD_CAPS 0x0020 /* 10T Half Duplex Capable */ +#define NWAY_AR_10T_FD_CAPS 0x0040 /* 10T Full Duplex Capable */ +#define NWAY_AR_100TX_HD_CAPS 0x0080 /* 100TX Half Duplex Capable */ +#define NWAY_AR_100TX_FD_CAPS 0x0100 /* 100TX Full Duplex Capable */ +#define NWAY_AR_100T4_CAPS 0x0200 /* 100T4 Capable */ +#define NWAY_AR_PAUSE 0x0400 /* Pause operation desired */ +#define NWAY_AR_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */ +#define NWAY_AR_REMOTE_FAULT 0x2000 /* Remote Fault detected */ +#define NWAY_AR_NEXT_PAGE 0x8000 /* Next Page ability supported */ + +/* Link Partner Ability Register (Base Page) */ +#define NWAY_LPAR_SELECTOR_FIELD 0x0000 /* LP protocol selector field */ +#define NWAY_LPAR_10T_HD_CAPS 0x0020 /* LP is 10T Half Duplex Capable */ +#define NWAY_LPAR_10T_FD_CAPS 0x0040 /* LP is 10T Full Duplex Capable */ +#define NWAY_LPAR_100TX_HD_CAPS 0x0080 /* LP is 100TX Half Duplex Capable */ +#define NWAY_LPAR_100TX_FD_CAPS 0x0100 /* LP is 100TX Full Duplex Capable */ +#define NWAY_LPAR_100T4_CAPS 0x0200 /* LP is 100T4 Capable */ +#define NWAY_LPAR_PAUSE 0x0400 /* LP Pause operation desired */ +#define NWAY_LPAR_ASM_DIR 0x0800 /* LP Asymmetric Pause Direction bit */ +#define NWAY_LPAR_REMOTE_FAULT 0x2000 /* LP has detected Remote Fault */ +#define NWAY_LPAR_ACKNOWLEDGE 0x4000 /* LP has rx'd link code word */ +#define NWAY_LPAR_NEXT_PAGE 0x8000 /* Next Page ability supported */ + +/* Autoneg Expansion Register */ +#define NWAY_ER_LP_NWAY_CAPS 0x0001 /* LP has Auto Neg Capability */ +#define NWAY_ER_PAGE_RXD 0x0002 /* LP is 10T Half Duplex Capable */ +#define NWAY_ER_NEXT_PAGE_CAPS 0x0004 /* LP is 10T Full Duplex Capable */ +#define NWAY_ER_LP_NEXT_PAGE_CAPS 0x0008 /* LP is 100TX Half Duplex Capable */ +#define NWAY_ER_PAR_DETECT_FAULT 0x0010 /* LP is 100TX Full Duplex Capable */ + +/* Next Page TX Register */ +#define NPTX_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */ +#define NPTX_TOGGLE 0x0800 /* Toggles between exchanges + * of different NP + */ +#define NPTX_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg + * 0 = cannot comply with msg + */ +#define NPTX_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */ +#define NPTX_NEXT_PAGE 0x8000 /* 1 = addition NP will follow + * 0 = sending last NP + */ + +/* Link Partner Next Page Register */ +#define LP_RNPR_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */ +#define LP_RNPR_TOGGLE 0x0800 /* Toggles between exchanges + * of different NP + */ +#define LP_RNPR_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg + * 0 = cannot comply with msg + */ +#define LP_RNPR_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */ +#define LP_RNPR_ACKNOWLDGE 0x4000 /* 1 = ACK / 0 = NO ACK */ +#define LP_RNPR_NEXT_PAGE 0x8000 /* 1 = addition NP will follow + * 0 = sending last NP + */ + +/* 1000BASE-T Control Register */ +#define CR_1000T_ASYM_PAUSE 0x0080 /* Advertise asymmetric pause bit */ +#define CR_1000T_HD_CAPS 0x0100 /* Advertise 1000T HD capability */ +#define CR_1000T_FD_CAPS 0x0200 /* Advertise 1000T FD capability */ +#define CR_1000T_REPEATER_DTE 0x0400 /* 1=Repeater/switch device port */ + /* 0=DTE device */ +#define CR_1000T_MS_VALUE 0x0800 /* 1=Configure PHY as Master */ + /* 0=Configure PHY as Slave */ +#define CR_1000T_MS_ENABLE 0x1000 /* 1=Master/Slave manual config value */ + /* 0=Automatic Master/Slave config */ +#define CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */ +#define CR_1000T_TEST_MODE_1 0x2000 /* Transmit Waveform test */ +#define CR_1000T_TEST_MODE_2 0x4000 /* Master Transmit Jitter test */ +#define CR_1000T_TEST_MODE_3 0x6000 /* Slave Transmit Jitter test */ +#define CR_1000T_TEST_MODE_4 0x8000 /* Transmitter Distortion test */ + +/* 1000BASE-T Status Register */ +#define SR_1000T_IDLE_ERROR_CNT 0x00FF /* Num idle errors since last read */ +#define SR_1000T_ASYM_PAUSE_DIR 0x0100 /* LP asymmetric pause direction bit */ +#define SR_1000T_LP_HD_CAPS 0x0400 /* LP is 1000T HD capable */ +#define SR_1000T_LP_FD_CAPS 0x0800 /* LP is 1000T FD capable */ +#define SR_1000T_REMOTE_RX_STATUS 0x1000 /* Remote receiver OK */ +#define SR_1000T_LOCAL_RX_STATUS 0x2000 /* Local receiver OK */ +#define SR_1000T_MS_CONFIG_RES 0x4000 /* 1=Local TX is Master, 0=Slave */ +#define SR_1000T_MS_CONFIG_FAULT 0x8000 /* Master/Slave config fault */ +#define SR_1000T_REMOTE_RX_STATUS_SHIFT 12 +#define SR_1000T_LOCAL_RX_STATUS_SHIFT 13 +#define SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT 5 +#define FFE_IDLE_ERR_COUNT_TIMEOUT_20 20 +#define FFE_IDLE_ERR_COUNT_TIMEOUT_100 100 + +/* Extended Status Register */ +#define IEEE_ESR_1000T_HD_CAPS 0x1000 /* 1000T HD capable */ +#define IEEE_ESR_1000T_FD_CAPS 0x2000 /* 1000T FD capable */ +#define IEEE_ESR_1000X_HD_CAPS 0x4000 /* 1000X HD capable */ +#define IEEE_ESR_1000X_FD_CAPS 0x8000 /* 1000X FD capable */ + +#define PHY_TX_POLARITY_MASK 0x0100 /* register 10h bit 8 (polarity bit) */ +#define PHY_TX_NORMAL_POLARITY 0 /* register 10h bit 8 (normal polarity) */ + +#define AUTO_POLARITY_DISABLE 0x0010 /* register 11h bit 4 */ + /* (0=enable, 1=disable) */ + +/* M88E1000 PHY Specific Control Register */ +#define M88E1000_PSCR_JABBER_DISABLE 0x0001 /* 1=Jabber Function disabled */ +#define M88E1000_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reversal enabled */ +#define M88E1000_PSCR_SQE_TEST 0x0004 /* 1=SQE Test enabled */ +#define M88E1000_PSCR_CLK125_DISABLE 0x0010 /* 1=CLK125 low, + * 0=CLK125 toggling + */ +#define M88E1000_PSCR_MDI_MANUAL_MODE 0x0000 /* MDI Crossover Mode bits 6:5 */ + /* Manual MDI configuration */ +#define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */ +#define M88E1000_PSCR_AUTO_X_1000T 0x0040 /* 1000BASE-T: Auto crossover, + * 100BASE-TX/10BASE-T: + * MDI Mode + */ +#define M88E1000_PSCR_AUTO_X_MODE 0x0060 /* Auto crossover enabled + * all speeds. + */ +#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE 0x0080 + /* 1=Enable Extended 10BASE-T distance + * (Lower 10BASE-T RX Threshold) + * 0=Normal 10BASE-T RX Threshold */ +#define M88E1000_PSCR_MII_5BIT_ENABLE 0x0100 + /* 1=5-Bit interface in 100BASE-TX + * 0=MII interface in 100BASE-TX */ +#define M88E1000_PSCR_SCRAMBLER_DISABLE 0x0200 /* 1=Scrambler disable */ +#define M88E1000_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force link good */ +#define M88E1000_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */ + +#define M88E1000_PSCR_POLARITY_REVERSAL_SHIFT 1 +#define M88E1000_PSCR_AUTO_X_MODE_SHIFT 5 +#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7 + +/* M88E1000 PHY Specific Status Register */ +#define M88E1000_PSSR_JABBER 0x0001 /* 1=Jabber */ +#define M88E1000_PSSR_REV_POLARITY 0x0002 /* 1=Polarity reversed */ +#define M88E1000_PSSR_DOWNSHIFT 0x0020 /* 1=Downshifted */ +#define M88E1000_PSSR_MDIX 0x0040 /* 1=MDIX; 0=MDI */ +#define M88E1000_PSSR_CABLE_LENGTH 0x0380 /* 0=<50M;1=50-80M;2=80-110M; + * 3=110-140M;4=>140M */ +#define M88E1000_PSSR_LINK 0x0400 /* 1=Link up, 0=Link down */ +#define M88E1000_PSSR_SPD_DPLX_RESOLVED 0x0800 /* 1=Speed & Duplex resolved */ +#define M88E1000_PSSR_PAGE_RCVD 0x1000 /* 1=Page received */ +#define M88E1000_PSSR_DPLX 0x2000 /* 1=Duplex 0=Half Duplex */ +#define M88E1000_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */ +#define M88E1000_PSSR_10MBS 0x0000 /* 00=10Mbs */ +#define M88E1000_PSSR_100MBS 0x4000 /* 01=100Mbs */ +#define M88E1000_PSSR_1000MBS 0x8000 /* 10=1000Mbs */ + +#define M88E1000_PSSR_REV_POLARITY_SHIFT 1 +#define M88E1000_PSSR_DOWNSHIFT_SHIFT 5 +#define M88E1000_PSSR_MDIX_SHIFT 6 +#define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7 + +/* M88E1000 Extended PHY Specific Control Register */ +#define M88E1000_EPSCR_FIBER_LOOPBACK 0x4000 /* 1=Fiber loopback */ +#define M88E1000_EPSCR_DOWN_NO_IDLE 0x8000 /* 1=Lost lock detect enabled. + * Will assert lost lock and bring + * link down if idle not seen + * within 1ms in 1000BASE-T + */ +/* Number of times we will attempt to autonegotiate before downshifting if we + * are the master */ +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK 0x0C00 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_1X 0x0000 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_2X 0x0400 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_3X 0x0800 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_4X 0x0C00 +/* Number of times we will attempt to autonegotiate before downshifting if we + * are the slave */ +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK 0x0300 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_DIS 0x0000 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X 0x0100 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_2X 0x0200 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_3X 0x0300 +#define M88E1000_EPSCR_TX_CLK_2_5 0x0060 /* 2.5 MHz TX_CLK */ +#define M88E1000_EPSCR_TX_CLK_25 0x0070 /* 25 MHz TX_CLK */ +#define M88E1000_EPSCR_TX_CLK_0 0x0000 /* NO TX_CLK */ + +/* M88EC018 Rev 2 specific DownShift settings */ +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK 0x0E00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_1X 0x0000 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_2X 0x0200 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_3X 0x0400 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_4X 0x0600 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X 0x0800 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_6X 0x0A00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_7X 0x0C00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_8X 0x0E00 + +/* IGP01E1000 Specific Port Config Register - R/W */ +#define IGP01E1000_PSCFR_AUTO_MDIX_PAR_DETECT 0x0010 +#define IGP01E1000_PSCFR_PRE_EN 0x0020 +#define IGP01E1000_PSCFR_SMART_SPEED 0x0080 +#define IGP01E1000_PSCFR_DISABLE_TPLOOPBACK 0x0100 +#define IGP01E1000_PSCFR_DISABLE_JABBER 0x0400 +#define IGP01E1000_PSCFR_DISABLE_TRANSMIT 0x2000 + +/* IGP01E1000 Specific Port Status Register - R/O */ +#define IGP01E1000_PSSR_AUTONEG_FAILED 0x0001 /* RO LH SC */ +#define IGP01E1000_PSSR_POLARITY_REVERSED 0x0002 +#define IGP01E1000_PSSR_CABLE_LENGTH 0x007C +#define IGP01E1000_PSSR_FULL_DUPLEX 0x0200 +#define IGP01E1000_PSSR_LINK_UP 0x0400 +#define IGP01E1000_PSSR_MDIX 0x0800 +#define IGP01E1000_PSSR_SPEED_MASK 0xC000 /* speed bits mask */ +#define IGP01E1000_PSSR_SPEED_10MBPS 0x4000 +#define IGP01E1000_PSSR_SPEED_100MBPS 0x8000 +#define IGP01E1000_PSSR_SPEED_1000MBPS 0xC000 +#define IGP01E1000_PSSR_CABLE_LENGTH_SHIFT 0x0002 /* shift right 2 */ +#define IGP01E1000_PSSR_MDIX_SHIFT 0x000B /* shift right 11 */ + +/* IGP01E1000 Specific Port Control Register - R/W */ +#define IGP01E1000_PSCR_TP_LOOPBACK 0x0010 +#define IGP01E1000_PSCR_CORRECT_NC_SCMBLR 0x0200 +#define IGP01E1000_PSCR_TEN_CRS_SELECT 0x0400 +#define IGP01E1000_PSCR_FLIP_CHIP 0x0800 +#define IGP01E1000_PSCR_AUTO_MDIX 0x1000 +#define IGP01E1000_PSCR_FORCE_MDI_MDIX 0x2000 /* 0-MDI, 1-MDIX */ + +/* IGP01E1000 Specific Port Link Health Register */ +#define IGP01E1000_PLHR_SS_DOWNGRADE 0x8000 +#define IGP01E1000_PLHR_GIG_SCRAMBLER_ERROR 0x4000 +#define IGP01E1000_PLHR_MASTER_FAULT 0x2000 +#define IGP01E1000_PLHR_MASTER_RESOLUTION 0x1000 +#define IGP01E1000_PLHR_GIG_REM_RCVR_NOK 0x0800 /* LH */ +#define IGP01E1000_PLHR_IDLE_ERROR_CNT_OFLOW 0x0400 /* LH */ +#define IGP01E1000_PLHR_DATA_ERR_1 0x0200 /* LH */ +#define IGP01E1000_PLHR_DATA_ERR_0 0x0100 +#define IGP01E1000_PLHR_AUTONEG_FAULT 0x0040 +#define IGP01E1000_PLHR_AUTONEG_ACTIVE 0x0010 +#define IGP01E1000_PLHR_VALID_CHANNEL_D 0x0008 +#define IGP01E1000_PLHR_VALID_CHANNEL_C 0x0004 +#define IGP01E1000_PLHR_VALID_CHANNEL_B 0x0002 +#define IGP01E1000_PLHR_VALID_CHANNEL_A 0x0001 + +/* IGP01E1000 Channel Quality Register */ +#define IGP01E1000_MSE_CHANNEL_D 0x000F +#define IGP01E1000_MSE_CHANNEL_C 0x00F0 +#define IGP01E1000_MSE_CHANNEL_B 0x0F00 +#define IGP01E1000_MSE_CHANNEL_A 0xF000 + +#define IGP02E1000_PM_SPD 0x0001 /* Smart Power Down */ +#define IGP02E1000_PM_D3_LPLU 0x0004 /* Enable LPLU in non-D0a modes */ +#define IGP02E1000_PM_D0_LPLU 0x0002 /* Enable LPLU in D0a mode */ + +/* IGP01E1000 DSP reset macros */ +#define DSP_RESET_ENABLE 0x0 +#define DSP_RESET_DISABLE 0x2 +#define E1000_MAX_DSP_RESETS 10 + +/* IGP01E1000 & IGP02E1000 AGC Registers */ + +#define IGP01E1000_AGC_LENGTH_SHIFT 7 /* Coarse - 13:11, Fine - 10:7 */ +#define IGP02E1000_AGC_LENGTH_SHIFT 9 /* Coarse - 15:13, Fine - 12:9 */ + +/* IGP02E1000 AGC Register Length 9-bit mask */ +#define IGP02E1000_AGC_LENGTH_MASK 0x7F + +/* 7 bits (3 Coarse + 4 Fine) --> 128 optional values */ +#define IGP01E1000_AGC_LENGTH_TABLE_SIZE 128 +#define IGP02E1000_AGC_LENGTH_TABLE_SIZE 113 + +/* The precision error of the cable length is +/- 10 meters */ +#define IGP01E1000_AGC_RANGE 10 +#define IGP02E1000_AGC_RANGE 15 + +/* IGP01E1000 PCS Initialization register */ +/* bits 3:6 in the PCS registers stores the channels polarity */ +#define IGP01E1000_PHY_POLARITY_MASK 0x0078 + +/* IGP01E1000 GMII FIFO Register */ +#define IGP01E1000_GMII_FLEX_SPD 0x10 /* Enable flexible speed + * on Link-Up */ +#define IGP01E1000_GMII_SPD 0x20 /* Enable SPD */ + +/* IGP01E1000 Analog Register */ +#define IGP01E1000_ANALOG_SPARE_FUSE_STATUS 0x20D1 +#define IGP01E1000_ANALOG_FUSE_STATUS 0x20D0 +#define IGP01E1000_ANALOG_FUSE_CONTROL 0x20DC +#define IGP01E1000_ANALOG_FUSE_BYPASS 0x20DE + +#define IGP01E1000_ANALOG_FUSE_POLY_MASK 0xF000 +#define IGP01E1000_ANALOG_FUSE_FINE_MASK 0x0F80 +#define IGP01E1000_ANALOG_FUSE_COARSE_MASK 0x0070 +#define IGP01E1000_ANALOG_SPARE_FUSE_ENABLED 0x0100 +#define IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL 0x0002 + +#define IGP01E1000_ANALOG_FUSE_COARSE_THRESH 0x0040 +#define IGP01E1000_ANALOG_FUSE_COARSE_10 0x0010 +#define IGP01E1000_ANALOG_FUSE_FINE_1 0x0080 +#define IGP01E1000_ANALOG_FUSE_FINE_10 0x0500 + +/* GG82563 PHY Specific Status Register (Page 0, Register 16 */ +#define GG82563_PSCR_DISABLE_JABBER 0x0001 /* 1=Disable Jabber */ +#define GG82563_PSCR_POLARITY_REVERSAL_DISABLE 0x0002 /* 1=Polarity Reversal Disabled */ +#define GG82563_PSCR_POWER_DOWN 0x0004 /* 1=Power Down */ +#define GG82563_PSCR_COPPER_TRANSMITER_DISABLE 0x0008 /* 1=Transmitter Disabled */ +#define GG82563_PSCR_CROSSOVER_MODE_MASK 0x0060 +#define GG82563_PSCR_CROSSOVER_MODE_MDI 0x0000 /* 00=Manual MDI configuration */ +#define GG82563_PSCR_CROSSOVER_MODE_MDIX 0x0020 /* 01=Manual MDIX configuration */ +#define GG82563_PSCR_CROSSOVER_MODE_AUTO 0x0060 /* 11=Automatic crossover */ +#define GG82563_PSCR_ENALBE_EXTENDED_DISTANCE 0x0080 /* 1=Enable Extended Distance */ +#define GG82563_PSCR_ENERGY_DETECT_MASK 0x0300 +#define GG82563_PSCR_ENERGY_DETECT_OFF 0x0000 /* 00,01=Off */ +#define GG82563_PSCR_ENERGY_DETECT_RX 0x0200 /* 10=Sense on Rx only (Energy Detect) */ +#define GG82563_PSCR_ENERGY_DETECT_RX_TM 0x0300 /* 11=Sense and Tx NLP */ +#define GG82563_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force Link Good */ +#define GG82563_PSCR_DOWNSHIFT_ENABLE 0x0800 /* 1=Enable Downshift */ +#define GG82563_PSCR_DOWNSHIFT_COUNTER_MASK 0x7000 +#define GG82563_PSCR_DOWNSHIFT_COUNTER_SHIFT 12 + +/* PHY Specific Status Register (Page 0, Register 17) */ +#define GG82563_PSSR_JABBER 0x0001 /* 1=Jabber */ +#define GG82563_PSSR_POLARITY 0x0002 /* 1=Polarity Reversed */ +#define GG82563_PSSR_LINK 0x0008 /* 1=Link is Up */ +#define GG82563_PSSR_ENERGY_DETECT 0x0010 /* 1=Sleep, 0=Active */ +#define GG82563_PSSR_DOWNSHIFT 0x0020 /* 1=Downshift */ +#define GG82563_PSSR_CROSSOVER_STATUS 0x0040 /* 1=MDIX, 0=MDI */ +#define GG82563_PSSR_RX_PAUSE_ENABLED 0x0100 /* 1=Receive Pause Enabled */ +#define GG82563_PSSR_TX_PAUSE_ENABLED 0x0200 /* 1=Transmit Pause Enabled */ +#define GG82563_PSSR_LINK_UP 0x0400 /* 1=Link Up */ +#define GG82563_PSSR_SPEED_DUPLEX_RESOLVED 0x0800 /* 1=Resolved */ +#define GG82563_PSSR_PAGE_RECEIVED 0x1000 /* 1=Page Received */ +#define GG82563_PSSR_DUPLEX 0x2000 /* 1-Full-Duplex */ +#define GG82563_PSSR_SPEED_MASK 0xC000 +#define GG82563_PSSR_SPEED_10MBPS 0x0000 /* 00=10Mbps */ +#define GG82563_PSSR_SPEED_100MBPS 0x4000 /* 01=100Mbps */ +#define GG82563_PSSR_SPEED_1000MBPS 0x8000 /* 10=1000Mbps */ + +/* PHY Specific Status Register 2 (Page 0, Register 19) */ +#define GG82563_PSSR2_JABBER 0x0001 /* 1=Jabber */ +#define GG82563_PSSR2_POLARITY_CHANGED 0x0002 /* 1=Polarity Changed */ +#define GG82563_PSSR2_ENERGY_DETECT_CHANGED 0x0010 /* 1=Energy Detect Changed */ +#define GG82563_PSSR2_DOWNSHIFT_INTERRUPT 0x0020 /* 1=Downshift Detected */ +#define GG82563_PSSR2_MDI_CROSSOVER_CHANGE 0x0040 /* 1=Crossover Changed */ +#define GG82563_PSSR2_FALSE_CARRIER 0x0100 /* 1=False Carrier */ +#define GG82563_PSSR2_SYMBOL_ERROR 0x0200 /* 1=Symbol Error */ +#define GG82563_PSSR2_LINK_STATUS_CHANGED 0x0400 /* 1=Link Status Changed */ +#define GG82563_PSSR2_AUTO_NEG_COMPLETED 0x0800 /* 1=Auto-Neg Completed */ +#define GG82563_PSSR2_PAGE_RECEIVED 0x1000 /* 1=Page Received */ +#define GG82563_PSSR2_DUPLEX_CHANGED 0x2000 /* 1=Duplex Changed */ +#define GG82563_PSSR2_SPEED_CHANGED 0x4000 /* 1=Speed Changed */ +#define GG82563_PSSR2_AUTO_NEG_ERROR 0x8000 /* 1=Auto-Neg Error */ + +/* PHY Specific Control Register 2 (Page 0, Register 26) */ +#define GG82563_PSCR2_10BT_POLARITY_FORCE 0x0002 /* 1=Force Negative Polarity */ +#define GG82563_PSCR2_1000MB_TEST_SELECT_MASK 0x000C +#define GG82563_PSCR2_1000MB_TEST_SELECT_NORMAL 0x0000 /* 00,01=Normal Operation */ +#define GG82563_PSCR2_1000MB_TEST_SELECT_112NS 0x0008 /* 10=Select 112ns Sequence */ +#define GG82563_PSCR2_1000MB_TEST_SELECT_16NS 0x000C /* 11=Select 16ns Sequence */ +#define GG82563_PSCR2_REVERSE_AUTO_NEG 0x2000 /* 1=Reverse Auto-Negotiation */ +#define GG82563_PSCR2_1000BT_DISABLE 0x4000 /* 1=Disable 1000BASE-T */ +#define GG82563_PSCR2_TRANSMITER_TYPE_MASK 0x8000 +#define GG82563_PSCR2_TRANSMITTER_TYPE_CLASS_B 0x0000 /* 0=Class B */ +#define GG82563_PSCR2_TRANSMITTER_TYPE_CLASS_A 0x8000 /* 1=Class A */ + +/* MAC Specific Control Register (Page 2, Register 21) */ +/* Tx clock speed for Link Down and 1000BASE-T for the following speeds */ +#define GG82563_MSCR_TX_CLK_MASK 0x0007 +#define GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ 0x0004 +#define GG82563_MSCR_TX_CLK_100MBPS_25MHZ 0x0005 +#define GG82563_MSCR_TX_CLK_1000MBPS_2_5MHZ 0x0006 +#define GG82563_MSCR_TX_CLK_1000MBPS_25MHZ 0x0007 + +#define GG82563_MSCR_ASSERT_CRS_ON_TX 0x0010 /* 1=Assert */ + +/* DSP Distance Register (Page 5, Register 26) */ +#define GG82563_DSPD_CABLE_LENGTH 0x0007 /* 0 = <50M; + 1 = 50-80M; + 2 = 80-110M; + 3 = 110-140M; + 4 = >140M */ + +/* Kumeran Mode Control Register (Page 193, Register 16) */ +#define GG82563_KMCR_PHY_LEDS_EN 0x0020 /* 1=PHY LEDs, 0=Kumeran Inband LEDs */ +#define GG82563_KMCR_FORCE_LINK_UP 0x0040 /* 1=Force Link Up */ +#define GG82563_KMCR_SUPPRESS_SGMII_EPD_EXT 0x0080 +#define GG82563_KMCR_MDIO_BUS_SPEED_SELECT_MASK 0x0400 +#define GG82563_KMCR_MDIO_BUS_SPEED_SELECT 0x0400 /* 1=6.25MHz, 0=0.8MHz */ +#define GG82563_KMCR_PASS_FALSE_CARRIER 0x0800 + +/* Power Management Control Register (Page 193, Register 20) */ +#define GG82563_PMCR_ENABLE_ELECTRICAL_IDLE 0x0001 /* 1=Enalbe SERDES Electrical Idle */ +#define GG82563_PMCR_DISABLE_PORT 0x0002 /* 1=Disable Port */ +#define GG82563_PMCR_DISABLE_SERDES 0x0004 /* 1=Disable SERDES */ +#define GG82563_PMCR_REVERSE_AUTO_NEG 0x0008 /* 1=Enable Reverse Auto-Negotiation */ +#define GG82563_PMCR_DISABLE_1000_NON_D0 0x0010 /* 1=Disable 1000Mbps Auto-Neg in non D0 */ +#define GG82563_PMCR_DISABLE_1000 0x0020 /* 1=Disable 1000Mbps Auto-Neg Always */ +#define GG82563_PMCR_REVERSE_AUTO_NEG_D0A 0x0040 /* 1=Enable D0a Reverse Auto-Negotiation */ +#define GG82563_PMCR_FORCE_POWER_STATE 0x0080 /* 1=Force Power State */ +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_MASK 0x0300 +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_DR 0x0000 /* 00=Dr */ +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_D0U 0x0100 /* 01=D0u */ +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_D0A 0x0200 /* 10=D0a */ +#define GG82563_PMCR_PROGRAMMED_POWER_STATE_D3 0x0300 /* 11=D3 */ + +/* In-Band Control Register (Page 194, Register 18) */ +#define GG82563_ICR_DIS_PADDING 0x0010 /* Disable Padding Use */ + + +/* Bit definitions for valid PHY IDs. */ +/* I = Integrated + * E = External + */ +#define M88_VENDOR 0x0141 +#define M88E1000_E_PHY_ID 0x01410C50 +#define M88E1000_I_PHY_ID 0x01410C30 +#define M88E1011_I_PHY_ID 0x01410C20 +#define IGP01E1000_I_PHY_ID 0x02A80380 +#define M88E1000_12_PHY_ID M88E1000_E_PHY_ID +#define M88E1000_14_PHY_ID M88E1000_E_PHY_ID +#define M88E1011_I_REV_4 0x04 +#define M88E1111_I_PHY_ID 0x01410CC0 +#define L1LXT971A_PHY_ID 0x001378E0 +#define GG82563_E_PHY_ID 0x01410CA0 + + +/* Bits... + * 15-5: page + * 4-0: register offset + */ +#define PHY_PAGE_SHIFT 5 +#define PHY_REG(page, reg) \ + (((page) << PHY_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS)) + +#define IGP3_PHY_PORT_CTRL \ + PHY_REG(769, 17) /* Port General Configuration */ +#define IGP3_PHY_RATE_ADAPT_CTRL \ + PHY_REG(769, 25) /* Rate Adapter Control Register */ + +#define IGP3_KMRN_FIFO_CTRL_STATS \ + PHY_REG(770, 16) /* KMRN FIFO's control/status register */ +#define IGP3_KMRN_POWER_MNG_CTRL \ + PHY_REG(770, 17) /* KMRN Power Management Control Register */ +#define IGP3_KMRN_INBAND_CTRL \ + PHY_REG(770, 18) /* KMRN Inband Control Register */ +#define IGP3_KMRN_DIAG \ + PHY_REG(770, 19) /* KMRN Diagnostic register */ +#define IGP3_KMRN_DIAG_PCS_LOCK_LOSS 0x0002 /* RX PCS is not synced */ +#define IGP3_KMRN_ACK_TIMEOUT \ + PHY_REG(770, 20) /* KMRN Acknowledge Timeouts register */ + +#define IGP3_VR_CTRL \ + PHY_REG(776, 18) /* Voltage regulator control register */ +#define IGP3_VR_CTRL_MODE_SHUT 0x0200 /* Enter powerdown, shutdown VRs */ +#define IGP3_VR_CTRL_MODE_MASK 0x0300 /* Shutdown VR Mask */ + +#define IGP3_CAPABILITY \ + PHY_REG(776, 19) /* IGP3 Capability Register */ + +/* Capabilities for SKU Control */ +#define IGP3_CAP_INITIATE_TEAM 0x0001 /* Able to initiate a team */ +#define IGP3_CAP_WFM 0x0002 /* Support WoL and PXE */ +#define IGP3_CAP_ASF 0x0004 /* Support ASF */ +#define IGP3_CAP_LPLU 0x0008 /* Support Low Power Link Up */ +#define IGP3_CAP_DC_AUTO_SPEED 0x0010 /* Support AC/DC Auto Link Speed */ +#define IGP3_CAP_SPD 0x0020 /* Support Smart Power Down */ +#define IGP3_CAP_MULT_QUEUE 0x0040 /* Support 2 tx & 2 rx queues */ +#define IGP3_CAP_RSS 0x0080 /* Support RSS */ +#define IGP3_CAP_8021PQ 0x0100 /* Support 802.1Q & 802.1p */ +#define IGP3_CAP_AMT_CB 0x0200 /* Support active manageability and circuit breaker */ + +#define IGP3_PPC_JORDAN_EN 0x0001 +#define IGP3_PPC_JORDAN_GIGA_SPEED 0x0002 + +#define IGP3_KMRN_PMC_EE_IDLE_LINK_DIS 0x0001 +#define IGP3_KMRN_PMC_K0S_ENTRY_LATENCY_MASK 0x001E +#define IGP3_KMRN_PMC_K0S_MODE1_EN_GIGA 0x0020 +#define IGP3_KMRN_PMC_K0S_MODE1_EN_100 0x0040 + +#define IGP3E1000_PHY_MISC_CTRL 0x1B /* Misc. Ctrl register */ +#define IGP3_PHY_MISC_DUPLEX_MANUAL_SET 0x1000 /* Duplex Manual Set */ + +#define IGP3_KMRN_EXT_CTRL PHY_REG(770, 18) +#define IGP3_KMRN_EC_DIS_INBAND 0x0080 + +#define IGP03E1000_E_PHY_ID 0x02A80390 +#define IFE_E_PHY_ID 0x02A80330 /* 10/100 PHY */ +#define IFE_PLUS_E_PHY_ID 0x02A80320 +#define IFE_C_E_PHY_ID 0x02A80310 + +#define IFE_PHY_EXTENDED_STATUS_CONTROL 0x10 /* 100BaseTx Extended Status, Control and Address */ +#define IFE_PHY_SPECIAL_CONTROL 0x11 /* 100BaseTx PHY special control register */ +#define IFE_PHY_RCV_FALSE_CARRIER 0x13 /* 100BaseTx Receive False Carrier Counter */ +#define IFE_PHY_RCV_DISCONNECT 0x14 /* 100BaseTx Receive Disconnet Counter */ +#define IFE_PHY_RCV_ERROT_FRAME 0x15 /* 100BaseTx Receive Error Frame Counter */ +#define IFE_PHY_RCV_SYMBOL_ERR 0x16 /* Receive Symbol Error Counter */ +#define IFE_PHY_PREM_EOF_ERR 0x17 /* 100BaseTx Receive Premature End Of Frame Error Counter */ +#define IFE_PHY_RCV_EOF_ERR 0x18 /* 10BaseT Receive End Of Frame Error Counter */ +#define IFE_PHY_TX_JABBER_DETECT 0x19 /* 10BaseT Transmit Jabber Detect Counter */ +#define IFE_PHY_EQUALIZER 0x1A /* PHY Equalizer Control and Status */ +#define IFE_PHY_SPECIAL_CONTROL_LED 0x1B /* PHY special control and LED configuration */ +#define IFE_PHY_MDIX_CONTROL 0x1C /* MDI/MDI-X Control register */ +#define IFE_PHY_HWI_CONTROL 0x1D /* Hardware Integrity Control (HWI) */ + +#define IFE_PESC_REDUCED_POWER_DOWN_DISABLE 0x2000 /* Defaut 1 = Disable auto reduced power down */ +#define IFE_PESC_100BTX_POWER_DOWN 0x0400 /* Indicates the power state of 100BASE-TX */ +#define IFE_PESC_10BTX_POWER_DOWN 0x0200 /* Indicates the power state of 10BASE-T */ +#define IFE_PESC_POLARITY_REVERSED 0x0100 /* Indicates 10BASE-T polarity */ +#define IFE_PESC_PHY_ADDR_MASK 0x007C /* Bit 6:2 for sampled PHY address */ +#define IFE_PESC_SPEED 0x0002 /* Auto-negotiation speed result 1=100Mbs, 0=10Mbs */ +#define IFE_PESC_DUPLEX 0x0001 /* Auto-negotiation duplex result 1=Full, 0=Half */ +#define IFE_PESC_POLARITY_REVERSED_SHIFT 8 + +#define IFE_PSC_DISABLE_DYNAMIC_POWER_DOWN 0x0100 /* 1 = Dyanmic Power Down disabled */ +#define IFE_PSC_FORCE_POLARITY 0x0020 /* 1=Reversed Polarity, 0=Normal */ +#define IFE_PSC_AUTO_POLARITY_DISABLE 0x0010 /* 1=Auto Polarity Disabled, 0=Enabled */ +#define IFE_PSC_JABBER_FUNC_DISABLE 0x0001 /* 1=Jabber Disabled, 0=Normal Jabber Operation */ +#define IFE_PSC_FORCE_POLARITY_SHIFT 5 +#define IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT 4 + +#define IFE_PMC_AUTO_MDIX 0x0080 /* 1=enable MDI/MDI-X feature, default 0=disabled */ +#define IFE_PMC_FORCE_MDIX 0x0040 /* 1=force MDIX-X, 0=force MDI */ +#define IFE_PMC_MDIX_STATUS 0x0020 /* 1=MDI-X, 0=MDI */ +#define IFE_PMC_AUTO_MDIX_COMPLETE 0x0010 /* Resolution algorithm is completed */ +#define IFE_PMC_MDIX_MODE_SHIFT 6 +#define IFE_PHC_MDIX_RESET_ALL_MASK 0x0000 /* Disable auto MDI-X */ + +#define IFE_PHC_HWI_ENABLE 0x8000 /* Enable the HWI feature */ +#define IFE_PHC_ABILITY_CHECK 0x4000 /* 1= Test Passed, 0=failed */ +#define IFE_PHC_TEST_EXEC 0x2000 /* PHY launch test pulses on the wire */ +#define IFE_PHC_HIGHZ 0x0200 /* 1 = Open Circuit */ +#define IFE_PHC_LOWZ 0x0400 /* 1 = Short Circuit */ +#define IFE_PHC_LOW_HIGH_Z_MASK 0x0600 /* Mask for indication type of problem on the line */ +#define IFE_PHC_DISTANCE_MASK 0x01FF /* Mask for distance to the cable problem, in 80cm granularity */ +#define IFE_PHC_RESET_ALL_MASK 0x0000 /* Disable HWI */ +#define IFE_PSCL_PROBE_MODE 0x0020 /* LED Probe mode */ +#define IFE_PSCL_PROBE_LEDS_OFF 0x0006 /* Force LEDs 0 and 2 off */ +#define IFE_PSCL_PROBE_LEDS_ON 0x0007 /* Force LEDs 0 and 2 on */ + +#define ICH_FLASH_COMMAND_TIMEOUT 5000 /* 5000 uSecs - adjusted */ +#define ICH_FLASH_ERASE_TIMEOUT 3000000 /* Up to 3 seconds - worst case */ +#define ICH_FLASH_CYCLE_REPEAT_COUNT 10 /* 10 cycles */ +#define ICH_FLASH_SEG_SIZE_256 256 +#define ICH_FLASH_SEG_SIZE_4K 4096 +#define ICH_FLASH_SEG_SIZE_64K 65536 + +#define ICH_CYCLE_READ 0x0 +#define ICH_CYCLE_RESERVED 0x1 +#define ICH_CYCLE_WRITE 0x2 +#define ICH_CYCLE_ERASE 0x3 + +#define ICH_FLASH_GFPREG 0x0000 +#define ICH_FLASH_HSFSTS 0x0004 +#define ICH_FLASH_HSFCTL 0x0006 +#define ICH_FLASH_FADDR 0x0008 +#define ICH_FLASH_FDATA0 0x0010 +#define ICH_FLASH_FRACC 0x0050 +#define ICH_FLASH_FREG0 0x0054 +#define ICH_FLASH_FREG1 0x0058 +#define ICH_FLASH_FREG2 0x005C +#define ICH_FLASH_FREG3 0x0060 +#define ICH_FLASH_FPR0 0x0074 +#define ICH_FLASH_FPR1 0x0078 +#define ICH_FLASH_SSFSTS 0x0090 +#define ICH_FLASH_SSFCTL 0x0092 +#define ICH_FLASH_PREOP 0x0094 +#define ICH_FLASH_OPTYPE 0x0096 +#define ICH_FLASH_OPMENU 0x0098 + +#define ICH_FLASH_REG_MAPSIZE 0x00A0 +#define ICH_FLASH_SECTOR_SIZE 4096 +#define ICH_GFPREG_BASE_MASK 0x1FFF +#define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF + +/* ICH8 GbE Flash Hardware Sequencing Flash Status Register bit breakdown */ +/* Offset 04h HSFSTS */ +union ich8_hws_flash_status { + struct ich8_hsfsts { +#ifdef __BIG_ENDIAN + u16 reserved2 :6; + u16 fldesvalid :1; + u16 flockdn :1; + u16 flcdone :1; + u16 flcerr :1; + u16 dael :1; + u16 berasesz :2; + u16 flcinprog :1; + u16 reserved1 :2; +#else + u16 flcdone :1; /* bit 0 Flash Cycle Done */ + u16 flcerr :1; /* bit 1 Flash Cycle Error */ + u16 dael :1; /* bit 2 Direct Access error Log */ + u16 berasesz :2; /* bit 4:3 Block/Sector Erase Size */ + u16 flcinprog :1; /* bit 5 flash SPI cycle in Progress */ + u16 reserved1 :2; /* bit 13:6 Reserved */ + u16 reserved2 :6; /* bit 13:6 Reserved */ + u16 fldesvalid :1; /* bit 14 Flash Descriptor Valid */ + u16 flockdn :1; /* bit 15 Flash Configuration Lock-Down */ +#endif + } hsf_status; + u16 regval; +}; + +/* ICH8 GbE Flash Hardware Sequencing Flash control Register bit breakdown */ +/* Offset 06h FLCTL */ +union ich8_hws_flash_ctrl { + struct ich8_hsflctl { +#ifdef __BIG_ENDIAN + u16 fldbcount :2; + u16 flockdn :6; + u16 flcgo :1; + u16 flcycle :2; + u16 reserved :5; +#else + u16 flcgo :1; /* 0 Flash Cycle Go */ + u16 flcycle :2; /* 2:1 Flash Cycle */ + u16 reserved :5; /* 7:3 Reserved */ + u16 fldbcount :2; /* 9:8 Flash Data Byte Count */ + u16 flockdn :6; /* 15:10 Reserved */ +#endif + } hsf_ctrl; + u16 regval; +}; + +/* ICH8 Flash Region Access Permissions */ +union ich8_hws_flash_regacc { + struct ich8_flracc { +#ifdef __BIG_ENDIAN + u32 gmwag :8; + u32 gmrag :8; + u32 grwa :8; + u32 grra :8; +#else + u32 grra :8; /* 0:7 GbE region Read Access */ + u32 grwa :8; /* 8:15 GbE region Write Access */ + u32 gmrag :8; /* 23:16 GbE Master Read Access Grant */ + u32 gmwag :8; /* 31:24 GbE Master Write Access Grant */ +#endif + } hsf_flregacc; + u16 regval; +}; + +/* Miscellaneous PHY bit definitions. */ +#define PHY_PREAMBLE 0xFFFFFFFF +#define PHY_SOF 0x01 +#define PHY_OP_READ 0x02 +#define PHY_OP_WRITE 0x01 +#define PHY_TURNAROUND 0x02 +#define PHY_PREAMBLE_SIZE 32 +#define MII_CR_SPEED_1000 0x0040 +#define MII_CR_SPEED_100 0x2000 +#define MII_CR_SPEED_10 0x0000 +#define E1000_PHY_ADDRESS 0x01 +#define PHY_AUTO_NEG_TIME 45 /* 4.5 Seconds */ +#define PHY_FORCE_TIME 20 /* 2.0 Seconds */ +#define PHY_REVISION_MASK 0xFFFFFFF0 +#define DEVICE_SPEED_MASK 0x00000300 /* Device Ctrl Reg Speed Mask */ +#define REG4_SPEED_MASK 0x01E0 +#define REG9_SPEED_MASK 0x0300 +#define ADVERTISE_10_HALF 0x0001 +#define ADVERTISE_10_FULL 0x0002 +#define ADVERTISE_100_HALF 0x0004 +#define ADVERTISE_100_FULL 0x0008 +#define ADVERTISE_1000_HALF 0x0010 +#define ADVERTISE_1000_FULL 0x0020 +#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F /* Everything but 1000-Half */ +#define AUTONEG_ADVERTISE_10_100_ALL 0x000F /* All 10/100 speeds*/ +#define AUTONEG_ADVERTISE_10_ALL 0x0003 /* 10Mbps Full & Half speeds*/ + +#endif /* _E1000_HW_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_hw-2.6.33-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_hw-2.6.33-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,5634 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + + */ + +/* e1000_hw.c + * Shared functions for accessing and configuring the MAC + */ + +#include "e1000_hw-2.6.33-ethercat.h" + +static s32 e1000_check_downshift(struct e1000_hw *hw); +static s32 e1000_check_polarity(struct e1000_hw *hw, + e1000_rev_polarity *polarity); +static void e1000_clear_hw_cntrs(struct e1000_hw *hw); +static void e1000_clear_vfta(struct e1000_hw *hw); +static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, + bool link_up); +static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw); +static s32 e1000_detect_gig_phy(struct e1000_hw *hw); +static s32 e1000_get_auto_rd_done(struct e1000_hw *hw); +static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, + u16 *max_length); +static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw); +static s32 e1000_id_led_init(struct e1000_hw *hw); +static void e1000_init_rx_addrs(struct e1000_hw *hw); +static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active); +static s32 e1000_wait_autoneg(struct e1000_hw *hw); +static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value); +static s32 e1000_set_phy_type(struct e1000_hw *hw); +static void e1000_phy_init_script(struct e1000_hw *hw); +static s32 e1000_setup_copper_link(struct e1000_hw *hw); +static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw); +static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw); +static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw); +static s32 e1000_config_mac_to_phy(struct e1000_hw *hw); +static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl); +static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl); +static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, u16 count); +static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw); +static s32 e1000_phy_reset_dsp(struct e1000_hw *hw); +static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data); +static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data); +static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw); +static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd); +static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd); +static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, u16 count); +static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 phy_data); +static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 *phy_data); +static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count); +static s32 e1000_acquire_eeprom(struct e1000_hw *hw); +static void e1000_release_eeprom(struct e1000_hw *hw); +static void e1000_standby_eeprom(struct e1000_hw *hw); +static s32 e1000_set_vco_speed(struct e1000_hw *hw); +static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw); +static s32 e1000_set_phy_mode(struct e1000_hw *hw); +static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); + +/* IGP cable length table */ +static const +u16 e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] = { + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25, + 25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60, + 60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90, + 90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, + 100, + 100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, + 110, 110, + 110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, + 120, 120 +}; + +static DEFINE_SPINLOCK(e1000_eeprom_lock); + +/** + * e1000_set_phy_type - Set the phy type member in the hw struct. + * @hw: Struct containing variables accessed by shared code + */ +static s32 e1000_set_phy_type(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_set_phy_type"); + + if (hw->mac_type == e1000_undefined) + return -E1000_ERR_PHY_TYPE; + + switch (hw->phy_id) { + case M88E1000_E_PHY_ID: + case M88E1000_I_PHY_ID: + case M88E1011_I_PHY_ID: + case M88E1111_I_PHY_ID: + hw->phy_type = e1000_phy_m88; + break; + case IGP01E1000_I_PHY_ID: + if (hw->mac_type == e1000_82541 || + hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547 || + hw->mac_type == e1000_82547_rev_2) { + hw->phy_type = e1000_phy_igp; + break; + } + default: + /* Should never have loaded on this device */ + hw->phy_type = e1000_phy_undefined; + return -E1000_ERR_PHY_TYPE; + } + + return E1000_SUCCESS; +} + +/** + * e1000_phy_init_script - IGP phy init script - initializes the GbE PHY + * @hw: Struct containing variables accessed by shared code + */ +static void e1000_phy_init_script(struct e1000_hw *hw) +{ + u32 ret_val; + u16 phy_saved_data; + + DEBUGFUNC("e1000_phy_init_script"); + + if (hw->phy_init_script) { + msleep(20); + + /* Save off the current value of register 0x2F5B to be restored at + * the end of this routine. */ + ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + /* Disabled the PHY transmitter */ + e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + msleep(20); + + e1000_write_phy_reg(hw, 0x0000, 0x0140); + msleep(5); + + switch (hw->mac_type) { + case e1000_82541: + case e1000_82547: + e1000_write_phy_reg(hw, 0x1F95, 0x0001); + e1000_write_phy_reg(hw, 0x1F71, 0xBD21); + e1000_write_phy_reg(hw, 0x1F79, 0x0018); + e1000_write_phy_reg(hw, 0x1F30, 0x1600); + e1000_write_phy_reg(hw, 0x1F31, 0x0014); + e1000_write_phy_reg(hw, 0x1F32, 0x161C); + e1000_write_phy_reg(hw, 0x1F94, 0x0003); + e1000_write_phy_reg(hw, 0x1F96, 0x003F); + e1000_write_phy_reg(hw, 0x2010, 0x0008); + break; + + case e1000_82541_rev_2: + case e1000_82547_rev_2: + e1000_write_phy_reg(hw, 0x1F73, 0x0099); + break; + default: + break; + } + + e1000_write_phy_reg(hw, 0x0000, 0x3300); + msleep(20); + + /* Now enable the transmitter */ + e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (hw->mac_type == e1000_82547) { + u16 fused, fine, coarse; + + /* Move to analog registers page */ + e1000_read_phy_reg(hw, + IGP01E1000_ANALOG_SPARE_FUSE_STATUS, + &fused); + + if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) { + e1000_read_phy_reg(hw, + IGP01E1000_ANALOG_FUSE_STATUS, + &fused); + + fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK; + coarse = + fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK; + + if (coarse > + IGP01E1000_ANALOG_FUSE_COARSE_THRESH) { + coarse -= + IGP01E1000_ANALOG_FUSE_COARSE_10; + fine -= IGP01E1000_ANALOG_FUSE_FINE_1; + } else if (coarse == + IGP01E1000_ANALOG_FUSE_COARSE_THRESH) + fine -= IGP01E1000_ANALOG_FUSE_FINE_10; + + fused = + (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) | + (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) | + (coarse & + IGP01E1000_ANALOG_FUSE_COARSE_MASK); + + e1000_write_phy_reg(hw, + IGP01E1000_ANALOG_FUSE_CONTROL, + fused); + e1000_write_phy_reg(hw, + IGP01E1000_ANALOG_FUSE_BYPASS, + IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL); + } + } + } +} + +/** + * e1000_set_mac_type - Set the mac type member in the hw struct. + * @hw: Struct containing variables accessed by shared code + */ +s32 e1000_set_mac_type(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_set_mac_type"); + + switch (hw->device_id) { + case E1000_DEV_ID_82542: + switch (hw->revision_id) { + case E1000_82542_2_0_REV_ID: + hw->mac_type = e1000_82542_rev2_0; + break; + case E1000_82542_2_1_REV_ID: + hw->mac_type = e1000_82542_rev2_1; + break; + default: + /* Invalid 82542 revision ID */ + return -E1000_ERR_MAC_TYPE; + } + break; + case E1000_DEV_ID_82543GC_FIBER: + case E1000_DEV_ID_82543GC_COPPER: + hw->mac_type = e1000_82543; + break; + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + hw->mac_type = e1000_82544; + break; + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + hw->mac_type = e1000_82540; + break; + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + hw->mac_type = e1000_82545; + break; + case E1000_DEV_ID_82545GM_COPPER: + case E1000_DEV_ID_82545GM_FIBER: + case E1000_DEV_ID_82545GM_SERDES: + hw->mac_type = e1000_82545_rev_3; + break; + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + hw->mac_type = e1000_82546; + break; + case E1000_DEV_ID_82546GB_COPPER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82546GB_SERDES: + case E1000_DEV_ID_82546GB_PCIE: + case E1000_DEV_ID_82546GB_QUAD_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + hw->mac_type = e1000_82546_rev_3; + break; + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER_LOM: + hw->mac_type = e1000_82541; + break; + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + hw->mac_type = e1000_82541_rev_2; + break; + case E1000_DEV_ID_82547EI: + case E1000_DEV_ID_82547EI_MOBILE: + hw->mac_type = e1000_82547; + break; + case E1000_DEV_ID_82547GI: + hw->mac_type = e1000_82547_rev_2; + break; + default: + /* Should never have loaded on this device */ + return -E1000_ERR_MAC_TYPE; + } + + switch (hw->mac_type) { + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + hw->asf_firmware_present = true; + break; + default: + break; + } + + /* The 82543 chip does not count tx_carrier_errors properly in + * FD mode + */ + if (hw->mac_type == e1000_82543) + hw->bad_tx_carr_stats_fd = true; + + if (hw->mac_type > e1000_82544) + hw->has_smbus = true; + + return E1000_SUCCESS; +} + +/** + * e1000_set_media_type - Set media type and TBI compatibility. + * @hw: Struct containing variables accessed by shared code + */ +void e1000_set_media_type(struct e1000_hw *hw) +{ + u32 status; + + DEBUGFUNC("e1000_set_media_type"); + + if (hw->mac_type != e1000_82543) { + /* tbi_compatibility is only valid on 82543 */ + hw->tbi_compatibility_en = false; + } + + switch (hw->device_id) { + case E1000_DEV_ID_82545GM_SERDES: + case E1000_DEV_ID_82546GB_SERDES: + hw->media_type = e1000_media_type_internal_serdes; + break; + default: + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + hw->media_type = e1000_media_type_fiber; + break; + default: + status = er32(STATUS); + if (status & E1000_STATUS_TBIMODE) { + hw->media_type = e1000_media_type_fiber; + /* tbi_compatibility not valid on fiber */ + hw->tbi_compatibility_en = false; + } else { + hw->media_type = e1000_media_type_copper; + } + break; + } + } +} + +/** + * e1000_reset_hw: reset the hardware completely + * @hw: Struct containing variables accessed by shared code + * + * Reset the transmit and receive units; mask and clear all interrupts. + */ +s32 e1000_reset_hw(struct e1000_hw *hw) +{ + u32 ctrl; + u32 ctrl_ext; + u32 icr; + u32 manc; + u32 led_ctrl; + s32 ret_val; + + DEBUGFUNC("e1000_reset_hw"); + + /* For 82542 (rev 2.0), disable MWI before issuing a device reset */ + if (hw->mac_type == e1000_82542_rev2_0) { + DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); + e1000_pci_clear_mwi(hw); + } + + /* Clear interrupt mask to stop board from generating interrupts */ + DEBUGOUT("Masking off all interrupts\n"); + ew32(IMC, 0xffffffff); + + /* Disable the Transmit and Receive units. Then delay to allow + * any pending transactions to complete before we hit the MAC with + * the global reset. + */ + ew32(RCTL, 0); + ew32(TCTL, E1000_TCTL_PSP); + E1000_WRITE_FLUSH(); + + /* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */ + hw->tbi_compatibility_on = false; + + /* Delay to allow any outstanding PCI transactions to complete before + * resetting the device + */ + msleep(10); + + ctrl = er32(CTRL); + + /* Must reset the PHY before resetting the MAC */ + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + ew32(CTRL, (ctrl | E1000_CTRL_PHY_RST)); + msleep(5); + } + + /* Issue a global reset to the MAC. This will reset the chip's + * transmit, receive, DMA, and link units. It will not effect + * the current PCI configuration. The global reset bit is self- + * clearing, and should clear within a microsecond. + */ + DEBUGOUT("Issuing a global reset to MAC\n"); + + switch (hw->mac_type) { + case e1000_82544: + case e1000_82540: + case e1000_82545: + case e1000_82546: + case e1000_82541: + case e1000_82541_rev_2: + /* These controllers can't ack the 64-bit write when issuing the + * reset, so use IO-mapping as a workaround to issue the reset */ + E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST)); + break; + case e1000_82545_rev_3: + case e1000_82546_rev_3: + /* Reset is performed on a shadow of the control register */ + ew32(CTRL_DUP, (ctrl | E1000_CTRL_RST)); + break; + default: + ew32(CTRL, (ctrl | E1000_CTRL_RST)); + break; + } + + /* After MAC reset, force reload of EEPROM to restore power-on settings to + * device. Later controllers reload the EEPROM automatically, so just wait + * for reload to complete. + */ + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* Wait for reset to complete */ + udelay(10); + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_EE_RST; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + /* Wait for EEPROM reload */ + msleep(2); + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + /* Wait for EEPROM reload */ + msleep(20); + break; + default: + /* Auto read done will delay 5ms or poll based on mac type */ + ret_val = e1000_get_auto_rd_done(hw); + if (ret_val) + return ret_val; + break; + } + + /* Disable HW ARPs on ASF enabled adapters */ + if (hw->mac_type >= e1000_82540) { + manc = er32(MANC); + manc &= ~(E1000_MANC_ARP_EN); + ew32(MANC, manc); + } + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + e1000_phy_init_script(hw); + + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* Clear interrupt mask to stop board from generating interrupts */ + DEBUGOUT("Masking off all interrupts\n"); + ew32(IMC, 0xffffffff); + + /* Clear any pending interrupt events. */ + icr = er32(ICR); + + /* If MWI was previously enabled, reenable it. */ + if (hw->mac_type == e1000_82542_rev2_0) { + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + } + + return E1000_SUCCESS; +} + +/** + * e1000_init_hw: Performs basic configuration of the adapter. + * @hw: Struct containing variables accessed by shared code + * + * Assumes that the controller has previously been reset and is in a + * post-reset uninitialized state. Initializes the receive address registers, + * multicast table, and VLAN filter table. Calls routines to setup link + * configuration and flow control settings. Clears all on-chip counters. Leaves + * the transmit and receive units disabled and uninitialized. + */ +s32 e1000_init_hw(struct e1000_hw *hw) +{ + u32 ctrl; + u32 i; + s32 ret_val; + u32 mta_size; + u32 ctrl_ext; + + DEBUGFUNC("e1000_init_hw"); + + /* Initialize Identification LED */ + ret_val = e1000_id_led_init(hw); + if (ret_val) { + DEBUGOUT("Error Initializing Identification LED\n"); + return ret_val; + } + + /* Set the media type and TBI compatibility */ + e1000_set_media_type(hw); + + /* Disabling VLAN filtering. */ + DEBUGOUT("Initializing the IEEE VLAN\n"); + if (hw->mac_type < e1000_82545_rev_3) + ew32(VET, 0); + e1000_clear_vfta(hw); + + /* For 82542 (rev 2.0), disable MWI and put the receiver into reset */ + if (hw->mac_type == e1000_82542_rev2_0) { + DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); + e1000_pci_clear_mwi(hw); + ew32(RCTL, E1000_RCTL_RST); + E1000_WRITE_FLUSH(); + msleep(5); + } + + /* Setup the receive address. This involves initializing all of the Receive + * Address Registers (RARs 0 - 15). + */ + e1000_init_rx_addrs(hw); + + /* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */ + if (hw->mac_type == e1000_82542_rev2_0) { + ew32(RCTL, 0); + E1000_WRITE_FLUSH(); + msleep(1); + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + } + + /* Zero out the Multicast HASH table */ + DEBUGOUT("Zeroing the MTA\n"); + mta_size = E1000_MC_TBL_SIZE; + for (i = 0; i < mta_size; i++) { + E1000_WRITE_REG_ARRAY(hw, MTA, i, 0); + /* use write flush to prevent Memory Write Block (MWB) from + * occurring when accessing our register space */ + E1000_WRITE_FLUSH(); + } + + /* Set the PCI priority bit correctly in the CTRL register. This + * determines if the adapter gives priority to receives, or if it + * gives equal priority to transmits and receives. Valid only on + * 82542 and 82543 silicon. + */ + if (hw->dma_fairness && hw->mac_type <= e1000_82543) { + ctrl = er32(CTRL); + ew32(CTRL, ctrl | E1000_CTRL_PRIOR); + } + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + /* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */ + if (hw->bus_type == e1000_bus_type_pcix + && e1000_pcix_get_mmrbc(hw) > 2048) + e1000_pcix_set_mmrbc(hw, 2048); + break; + } + + /* Call a subroutine to configure the link and setup flow control. */ + ret_val = e1000_setup_link(hw); + + /* Set the transmit descriptor write-back policy */ + if (hw->mac_type > e1000_82544) { + ctrl = er32(TXDCTL); + ctrl = + (ctrl & ~E1000_TXDCTL_WTHRESH) | + E1000_TXDCTL_FULL_TX_DESC_WB; + ew32(TXDCTL, ctrl); + } + + /* Clear all of the statistics registers (clear on read). It is + * important that we do this after we have tried to establish link + * because the symbol error count will increment wildly if there + * is no link. + */ + e1000_clear_hw_cntrs(hw); + + if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER || + hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) { + ctrl_ext = er32(CTRL_EXT); + /* Relaxed ordering must be disabled to avoid a parity + * error crash in a PCI slot. */ + ctrl_ext |= E1000_CTRL_EXT_RO_DIS; + ew32(CTRL_EXT, ctrl_ext); + } + + return ret_val; +} + +/** + * e1000_adjust_serdes_amplitude - Adjust SERDES output amplitude based on EEPROM setting. + * @hw: Struct containing variables accessed by shared code. + */ +static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw) +{ + u16 eeprom_data; + s32 ret_val; + + DEBUGFUNC("e1000_adjust_serdes_amplitude"); + + if (hw->media_type != e1000_media_type_internal_serdes) + return E1000_SUCCESS; + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + return E1000_SUCCESS; + } + + ret_val = e1000_read_eeprom(hw, EEPROM_SERDES_AMPLITUDE, 1, + &eeprom_data); + if (ret_val) { + return ret_val; + } + + if (eeprom_data != EEPROM_RESERVED_WORD) { + /* Adjust SERDES output amplitude only. */ + eeprom_data &= EEPROM_SERDES_AMPLITUDE_MASK; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_EXT_CTRL, eeprom_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/** + * e1000_setup_link - Configures flow control and link settings. + * @hw: Struct containing variables accessed by shared code + * + * Determines which flow control settings to use. Calls the appropriate media- + * specific link configuration function. Configures the flow control settings. + * Assuming the adapter has a valid link partner, a valid link should be + * established. Assumes the hardware has previously been reset and the + * transmitter and receiver are not enabled. + */ +s32 e1000_setup_link(struct e1000_hw *hw) +{ + u32 ctrl_ext; + s32 ret_val; + u16 eeprom_data; + + DEBUGFUNC("e1000_setup_link"); + + /* Read and store word 0x0F of the EEPROM. This word contains bits + * that determine the hardware's default PAUSE (flow control) mode, + * a bit that determines whether the HW defaults to enabling or + * disabling auto-negotiation, and the direction of the + * SW defined pins. If there is no SW over-ride of the flow + * control setting, then the variable hw->fc will + * be initialized based on a value in the EEPROM. + */ + if (hw->fc == E1000_FC_DEFAULT) { + ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, + 1, &eeprom_data); + if (ret_val) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0) + hw->fc = E1000_FC_NONE; + else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == + EEPROM_WORD0F_ASM_DIR) + hw->fc = E1000_FC_TX_PAUSE; + else + hw->fc = E1000_FC_FULL; + } + + /* We want to save off the original Flow Control configuration just + * in case we get disconnected and then reconnected into a different + * hub or switch with different Flow Control capabilities. + */ + if (hw->mac_type == e1000_82542_rev2_0) + hw->fc &= (~E1000_FC_TX_PAUSE); + + if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1)) + hw->fc &= (~E1000_FC_RX_PAUSE); + + hw->original_fc = hw->fc; + + DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc); + + /* Take the 4 bits from EEPROM word 0x0F that determine the initial + * polarity value for the SW controlled pins, and setup the + * Extended Device Control reg with that info. + * This is needed because one of the SW controlled pins is used for + * signal detection. So this should be done before e1000_setup_pcs_link() + * or e1000_phy_setup() is called. + */ + if (hw->mac_type == e1000_82543) { + ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, + 1, &eeprom_data); + if (ret_val) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) << + SWDPIO__EXT_SHIFT); + ew32(CTRL_EXT, ctrl_ext); + } + + /* Call the necessary subroutine to configure the link. */ + ret_val = (hw->media_type == e1000_media_type_copper) ? + e1000_setup_copper_link(hw) : e1000_setup_fiber_serdes_link(hw); + + /* Initialize the flow control address, type, and PAUSE timer + * registers to their default values. This is done even if flow + * control is disabled, because it does not hurt anything to + * initialize these registers. + */ + DEBUGOUT + ("Initializing the Flow Control address, type and timer regs\n"); + + ew32(FCT, FLOW_CONTROL_TYPE); + ew32(FCAH, FLOW_CONTROL_ADDRESS_HIGH); + ew32(FCAL, FLOW_CONTROL_ADDRESS_LOW); + + ew32(FCTTV, hw->fc_pause_time); + + /* Set the flow control receive threshold registers. Normally, + * these registers will be set to a default threshold that may be + * adjusted later by the driver's runtime code. However, if the + * ability to transmit pause frames in not enabled, then these + * registers will be set to 0. + */ + if (!(hw->fc & E1000_FC_TX_PAUSE)) { + ew32(FCRTL, 0); + ew32(FCRTH, 0); + } else { + /* We need to set up the Receive Threshold high and low water marks + * as well as (optionally) enabling the transmission of XON frames. + */ + if (hw->fc_send_xon) { + ew32(FCRTL, (hw->fc_low_water | E1000_FCRTL_XONE)); + ew32(FCRTH, hw->fc_high_water); + } else { + ew32(FCRTL, hw->fc_low_water); + ew32(FCRTH, hw->fc_high_water); + } + } + return ret_val; +} + +/** + * e1000_setup_fiber_serdes_link - prepare fiber or serdes link + * @hw: Struct containing variables accessed by shared code + * + * Manipulates Physical Coding Sublayer functions in order to configure + * link. Assumes the hardware has been previously reset and the transmitter + * and receiver are not enabled. + */ +static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw) +{ + u32 ctrl; + u32 status; + u32 txcw = 0; + u32 i; + u32 signal = 0; + s32 ret_val; + + DEBUGFUNC("e1000_setup_fiber_serdes_link"); + + /* On adapters with a MAC newer than 82544, SWDP 1 will be + * set when the optics detect a signal. On older adapters, it will be + * cleared when there is a signal. This applies to fiber media only. + * If we're on serdes media, adjust the output amplitude to value + * set in the EEPROM. + */ + ctrl = er32(CTRL); + if (hw->media_type == e1000_media_type_fiber) + signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; + + ret_val = e1000_adjust_serdes_amplitude(hw); + if (ret_val) + return ret_val; + + /* Take the link out of reset */ + ctrl &= ~(E1000_CTRL_LRST); + + /* Adjust VCO speed to improve BER performance */ + ret_val = e1000_set_vco_speed(hw); + if (ret_val) + return ret_val; + + e1000_config_collision_dist(hw); + + /* Check for a software override of the flow control settings, and setup + * the device accordingly. If auto-negotiation is enabled, then software + * will have to set the "PAUSE" bits to the correct value in the Tranmsit + * Config Word Register (TXCW) and re-start auto-negotiation. However, if + * auto-negotiation is disabled, then software will have to manually + * configure the two flow control enable bits in the CTRL register. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames, but + * not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames but we do + * not support receiving pause frames). + * 3: Both Rx and TX flow control (symmetric) are enabled. + */ + switch (hw->fc) { + case E1000_FC_NONE: + /* Flow control is completely disabled by a software over-ride. */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); + break; + case E1000_FC_RX_PAUSE: + /* RX Flow control is enabled and TX Flow control is disabled by a + * software over-ride. Since there really isn't a way to advertise + * that we are capable of RX Pause ONLY, we will advertise that we + * support both symmetric and asymmetric RX PAUSE. Later, we will + * disable the adapter's ability to send PAUSE frames. + */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); + break; + case E1000_FC_TX_PAUSE: + /* TX Flow control is enabled, and RX Flow control is disabled, by a + * software over-ride. + */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR); + break; + case E1000_FC_FULL: + /* Flow control (both RX and TX) is enabled by a software over-ride. */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + break; + } + + /* Since auto-negotiation is enabled, take the link out of reset (the link + * will be in reset, because we previously reset the chip). This will + * restart auto-negotiation. If auto-negotiation is successful then the + * link-up status bit will be set and the flow control enable bits (RFCE + * and TFCE) will be set according to their negotiated value. + */ + DEBUGOUT("Auto-negotiation enabled\n"); + + ew32(TXCW, txcw); + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + hw->txcw = txcw; + msleep(1); + + /* If we have a signal (the cable is plugged in) then poll for a "Link-Up" + * indication in the Device Status Register. Time-out if a link isn't + * seen in 500 milliseconds seconds (Auto-negotiation should complete in + * less than 500 milliseconds even if the other end is doing it in SW). + * For internal serdes, we just assume a signal is present, then poll. + */ + if (hw->media_type == e1000_media_type_internal_serdes || + (er32(CTRL) & E1000_CTRL_SWDPIN1) == signal) { + DEBUGOUT("Looking for Link\n"); + for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) { + msleep(10); + status = er32(STATUS); + if (status & E1000_STATUS_LU) + break; + } + if (i == (LINK_UP_TIMEOUT / 10)) { + DEBUGOUT("Never got a valid link from auto-neg!!!\n"); + hw->autoneg_failed = 1; + /* AutoNeg failed to achieve a link, so we'll call + * e1000_check_for_link. This routine will force the link up if + * we detect a signal. This will allow us to communicate with + * non-autonegotiating link partners. + */ + ret_val = e1000_check_for_link(hw); + if (ret_val) { + DEBUGOUT("Error while checking for link\n"); + return ret_val; + } + hw->autoneg_failed = 0; + } else { + hw->autoneg_failed = 0; + DEBUGOUT("Valid Link Found\n"); + } + } else { + DEBUGOUT("No Signal Detected\n"); + } + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_preconfig - early configuration for copper + * @hw: Struct containing variables accessed by shared code + * + * Make sure we have a valid PHY and change PHY mode before link setup. + */ +static s32 e1000_copper_link_preconfig(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_preconfig"); + + ctrl = er32(CTRL); + /* With 82543, we need to force speed and duplex on the MAC equal to what + * the PHY speed and duplex configuration is. In addition, we need to + * perform a hardware reset on the PHY to take it out of reset. + */ + if (hw->mac_type > e1000_82543) { + ctrl |= E1000_CTRL_SLU; + ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ew32(CTRL, ctrl); + } else { + ctrl |= + (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU); + ew32(CTRL, ctrl); + ret_val = e1000_phy_hw_reset(hw); + if (ret_val) + return ret_val; + } + + /* Make sure we have a valid PHY */ + ret_val = e1000_detect_gig_phy(hw); + if (ret_val) { + DEBUGOUT("Error, did not detect valid phy.\n"); + return ret_val; + } + DEBUGOUT1("Phy ID = %x \n", hw->phy_id); + + /* Set PHY to class A mode (if necessary) */ + ret_val = e1000_set_phy_mode(hw); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82545_rev_3) || + (hw->mac_type == e1000_82546_rev_3)) { + ret_val = + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + phy_data |= 0x00000008; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + } + + if (hw->mac_type <= e1000_82543 || + hw->mac_type == e1000_82541 || hw->mac_type == e1000_82547 || + hw->mac_type == e1000_82541_rev_2 + || hw->mac_type == e1000_82547_rev_2) + hw->phy_reset_disable = false; + + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_igp_setup - Copper link setup for e1000_phy_igp series. + * @hw: Struct containing variables accessed by shared code + */ +static s32 e1000_copper_link_igp_setup(struct e1000_hw *hw) +{ + u32 led_ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_igp_setup"); + + if (hw->phy_reset_disable) + return E1000_SUCCESS; + + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + + /* Wait 15ms for MAC to configure PHY from eeprom settings */ + msleep(15); + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + + /* The NVM settings will configure LPLU in D3 for IGP2 and IGP3 PHYs */ + if (hw->phy_type == e1000_phy_igp) { + /* disable lplu d3 during driver init */ + ret_val = e1000_set_d3_lplu_state(hw, false); + if (ret_val) { + DEBUGOUT("Error Disabling LPLU D3\n"); + return ret_val; + } + } + + /* Configure mdi-mdix settings */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + hw->dsp_config_state = e1000_dsp_config_disabled; + /* Force MDI for earlier revs of the IGP PHY */ + phy_data &= + ~(IGP01E1000_PSCR_AUTO_MDIX | + IGP01E1000_PSCR_FORCE_MDI_MDIX); + hw->mdix = 1; + + } else { + hw->dsp_config_state = e1000_dsp_config_enabled; + phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; + + switch (hw->mdix) { + case 1: + phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; + break; + case 2: + phy_data |= IGP01E1000_PSCR_FORCE_MDI_MDIX; + break; + case 0: + default: + phy_data |= IGP01E1000_PSCR_AUTO_MDIX; + break; + } + } + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* set auto-master slave resolution settings */ + if (hw->autoneg) { + e1000_ms_type phy_ms_setting = hw->master_slave; + + if (hw->ffe_config_state == e1000_ffe_config_active) + hw->ffe_config_state = e1000_ffe_config_enabled; + + if (hw->dsp_config_state == e1000_dsp_config_activated) + hw->dsp_config_state = e1000_dsp_config_enabled; + + /* when autonegotiation advertisement is only 1000Mbps then we + * should disable SmartSpeed and enable Auto MasterSlave + * resolution as hardware default. */ + if (hw->autoneg_advertised == ADVERTISE_1000_FULL) { + /* Disable SmartSpeed */ + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + /* Set auto Master/Slave resolution process */ + ret_val = + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); + if (ret_val) + return ret_val; + phy_data &= ~CR_1000T_MS_ENABLE; + ret_val = + e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); + if (ret_val) + return ret_val; + + /* load defaults for future use */ + hw->original_master_slave = (phy_data & CR_1000T_MS_ENABLE) ? + ((phy_data & CR_1000T_MS_VALUE) ? + e1000_ms_force_master : + e1000_ms_force_slave) : e1000_ms_auto; + + switch (phy_ms_setting) { + case e1000_ms_force_master: + phy_data |= (CR_1000T_MS_ENABLE | CR_1000T_MS_VALUE); + break; + case e1000_ms_force_slave: + phy_data |= CR_1000T_MS_ENABLE; + phy_data &= ~(CR_1000T_MS_VALUE); + break; + case e1000_ms_auto: + phy_data &= ~CR_1000T_MS_ENABLE; + default: + break; + } + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_mgp_setup - Copper link setup for e1000_phy_m88 series. + * @hw: Struct containing variables accessed by shared code + */ +static s32 e1000_copper_link_mgp_setup(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_mgp_setup"); + + if (hw->phy_reset_disable) + return E1000_SUCCESS; + + /* Enable CRS on TX. This must be set for half-duplex operation. */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + + /* Options: + * MDI/MDI-X = 0 (default) + * 0 - Auto for all speeds + * 1 - MDI mode + * 2 - MDI-X mode + * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) + */ + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + + switch (hw->mdix) { + case 1: + phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE; + break; + case 2: + phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE; + break; + case 3: + phy_data |= M88E1000_PSCR_AUTO_X_1000T; + break; + case 0: + default: + phy_data |= M88E1000_PSCR_AUTO_X_MODE; + break; + } + + /* Options: + * disable_polarity_correction = 0 (default) + * Automatic Correction for Reversed Cable Polarity + * 0 - Disabled + * 1 - Enabled + */ + phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL; + if (hw->disable_polarity_correction == 1) + phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + if (hw->phy_revision < M88E1011_I_REV_4) { + /* Force TX_CLK in the Extended PHY Specific Control Register + * to 25MHz clock. + */ + ret_val = + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_EPSCR_TX_CLK_25; + + if ((hw->phy_revision == E1000_REVISION_2) && + (hw->phy_id == M88E1111_I_PHY_ID)) { + /* Vidalia Phy, set the downshift counter to 5x */ + phy_data &= ~(M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK); + phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X; + ret_val = e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, + phy_data); + if (ret_val) + return ret_val; + } else { + /* Configure Master and Slave downshift values */ + phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK | + M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK); + phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X | + M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X); + ret_val = e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, + phy_data); + if (ret_val) + return ret_val; + } + } + + /* SW Reset the PHY so all changes take effect */ + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_autoneg - setup auto-neg + * @hw: Struct containing variables accessed by shared code + * + * Setup auto-negotiation and flow control advertisements, + * and then perform auto-negotiation. + */ +static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_autoneg"); + + /* Perform some bounds checking on the hw->autoneg_advertised + * parameter. If this variable is zero, then set it to the default. + */ + hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT; + + /* If autoneg_advertised is zero, we assume it was not defaulted + * by the calling code so we set to advertise full capability. + */ + if (hw->autoneg_advertised == 0) + hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT; + + DEBUGOUT("Reconfiguring auto-neg advertisement params\n"); + ret_val = e1000_phy_setup_autoneg(hw); + if (ret_val) { + DEBUGOUT("Error Setting up Auto-Negotiation\n"); + return ret_val; + } + DEBUGOUT("Restarting Auto-Neg\n"); + + /* Restart auto-negotiation by setting the Auto Neg Enable bit and + * the Auto Neg Restart bit in the PHY control register. + */ + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG); + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* Does the user want to wait for Auto-Neg to complete here, or + * check at a later time (for example, callback routine). + */ + if (hw->wait_autoneg_complete) { + ret_val = e1000_wait_autoneg(hw); + if (ret_val) { + DEBUGOUT + ("Error while waiting for autoneg to complete\n"); + return ret_val; + } + } + + hw->get_link_status = true; + + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_postconfig - post link setup + * @hw: Struct containing variables accessed by shared code + * + * Config the MAC and the PHY after link is up. + * 1) Set up the MAC to the current PHY speed/duplex + * if we are on 82543. If we + * are on newer silicon, we only need to configure + * collision distance in the Transmit Control Register. + * 2) Set up flow control on the MAC to that established with + * the link partner. + * 3) Config DSP to improve Gigabit link quality for some PHY revisions. + */ +static s32 e1000_copper_link_postconfig(struct e1000_hw *hw) +{ + s32 ret_val; + DEBUGFUNC("e1000_copper_link_postconfig"); + + if (hw->mac_type >= e1000_82544) { + e1000_config_collision_dist(hw); + } else { + ret_val = e1000_config_mac_to_phy(hw); + if (ret_val) { + DEBUGOUT("Error configuring MAC to PHY settings\n"); + return ret_val; + } + } + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error Configuring Flow Control\n"); + return ret_val; + } + + /* Config DSP to improve Giga link quality */ + if (hw->phy_type == e1000_phy_igp) { + ret_val = e1000_config_dsp_after_link_change(hw, true); + if (ret_val) { + DEBUGOUT("Error Configuring DSP after link up\n"); + return ret_val; + } + } + + return E1000_SUCCESS; +} + +/** + * e1000_setup_copper_link - phy/speed/duplex setting + * @hw: Struct containing variables accessed by shared code + * + * Detects which PHY is present and sets up the speed and duplex + */ +static s32 e1000_setup_copper_link(struct e1000_hw *hw) +{ + s32 ret_val; + u16 i; + u16 phy_data; + + DEBUGFUNC("e1000_setup_copper_link"); + + /* Check if it is a valid PHY and set PHY mode if necessary. */ + ret_val = e1000_copper_link_preconfig(hw); + if (ret_val) + return ret_val; + + if (hw->phy_type == e1000_phy_igp) { + ret_val = e1000_copper_link_igp_setup(hw); + if (ret_val) + return ret_val; + } else if (hw->phy_type == e1000_phy_m88) { + ret_val = e1000_copper_link_mgp_setup(hw); + if (ret_val) + return ret_val; + } + + if (hw->autoneg) { + /* Setup autoneg and flow control advertisement + * and perform autonegotiation */ + ret_val = e1000_copper_link_autoneg(hw); + if (ret_val) + return ret_val; + } else { + /* PHY will be set to 10H, 10F, 100H,or 100F + * depending on value from forced_speed_duplex. */ + DEBUGOUT("Forcing speed and duplex\n"); + ret_val = e1000_phy_force_speed_duplex(hw); + if (ret_val) { + DEBUGOUT("Error Forcing Speed and Duplex\n"); + return ret_val; + } + } + + /* Check link status. Wait up to 100 microseconds for link to become + * valid. + */ + for (i = 0; i < 10; i++) { + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & MII_SR_LINK_STATUS) { + /* Config the MAC and PHY after link is up */ + ret_val = e1000_copper_link_postconfig(hw); + if (ret_val) + return ret_val; + + DEBUGOUT("Valid link established!!!\n"); + return E1000_SUCCESS; + } + udelay(10); + } + + DEBUGOUT("Unable to establish link!!!\n"); + return E1000_SUCCESS; +} + +/** + * e1000_phy_setup_autoneg - phy settings + * @hw: Struct containing variables accessed by shared code + * + * Configures PHY autoneg and flow control advertisement settings + */ +s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_autoneg_adv_reg; + u16 mii_1000t_ctrl_reg; + + DEBUGFUNC("e1000_phy_setup_autoneg"); + + /* Read the MII Auto-Neg Advertisement Register (Address 4). */ + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg); + if (ret_val) + return ret_val; + + /* Read the MII 1000Base-T Control Register (Address 9). */ + ret_val = + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; + + /* Need to parse both autoneg_advertised and fc and set up + * the appropriate PHY registers. First we will parse for + * autoneg_advertised software override. Since we can advertise + * a plethora of combinations, we need to check each bit + * individually. + */ + + /* First we clear all the 10/100 mb speed bits in the Auto-Neg + * Advertisement Register (Address 4) and the 1000 mb speed bits in + * the 1000Base-T Control Register (Address 9). + */ + mii_autoneg_adv_reg &= ~REG4_SPEED_MASK; + mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK; + + DEBUGOUT1("autoneg_advertised %x\n", hw->autoneg_advertised); + + /* Do we want to advertise 10 Mb Half Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_10_HALF) { + DEBUGOUT("Advertise 10mb Half duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS; + } + + /* Do we want to advertise 10 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_10_FULL) { + DEBUGOUT("Advertise 10mb Full duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS; + } + + /* Do we want to advertise 100 Mb Half Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_100_HALF) { + DEBUGOUT("Advertise 100mb Half duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS; + } + + /* Do we want to advertise 100 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_100_FULL) { + DEBUGOUT("Advertise 100mb Full duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS; + } + + /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ + if (hw->autoneg_advertised & ADVERTISE_1000_HALF) { + DEBUGOUT + ("Advertise 1000mb Half duplex requested, request denied!\n"); + } + + /* Do we want to advertise 1000 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_1000_FULL) { + DEBUGOUT("Advertise 1000mb Full duplex\n"); + mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS; + } + + /* Check for a software override of the flow control settings, and + * setup the PHY advertisement registers accordingly. If + * auto-negotiation is enabled, then software will have to set the + * "PAUSE" bits to the correct value in the Auto-Negotiation + * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames + * but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames + * but we do not support receiving pause frames). + * 3: Both Rx and TX flow control (symmetric) are enabled. + * other: No software override. The flow control configuration + * in the EEPROM is used. + */ + switch (hw->fc) { + case E1000_FC_NONE: /* 0 */ + /* Flow control (RX & TX) is completely disabled by a + * software over-ride. + */ + mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + case E1000_FC_RX_PAUSE: /* 1 */ + /* RX Flow control is enabled, and TX Flow control is + * disabled, by a software over-ride. + */ + /* Since there really isn't a way to advertise that we are + * capable of RX Pause ONLY, we will advertise that we + * support both symmetric and asymmetric RX PAUSE. Later + * (in e1000_config_fc_after_link_up) we will disable the + *hw's ability to send PAUSE frames. + */ + mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + case E1000_FC_TX_PAUSE: /* 2 */ + /* TX Flow control is enabled, and RX Flow control is + * disabled, by a software over-ride. + */ + mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR; + mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE; + break; + case E1000_FC_FULL: /* 3 */ + /* Flow control (both RX and TX) is enabled by a software + * over-ride. + */ + mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + } + + ret_val = e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg); + if (ret_val) + return ret_val; + + DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg); + + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; + + return E1000_SUCCESS; +} + +/** + * e1000_phy_force_speed_duplex - force link settings + * @hw: Struct containing variables accessed by shared code + * + * Force PHY speed and duplex settings to hw->forced_speed_duplex + */ +static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 mii_ctrl_reg; + u16 mii_status_reg; + u16 phy_data; + u16 i; + + DEBUGFUNC("e1000_phy_force_speed_duplex"); + + /* Turn off Flow control if we are forcing speed and duplex. */ + hw->fc = E1000_FC_NONE; + + DEBUGOUT1("hw->fc = %d\n", hw->fc); + + /* Read the Device Control Register. */ + ctrl = er32(CTRL); + + /* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */ + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ctrl &= ~(DEVICE_SPEED_MASK); + + /* Clear the Auto Speed Detect Enable bit. */ + ctrl &= ~E1000_CTRL_ASDE; + + /* Read the MII Control Register. */ + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &mii_ctrl_reg); + if (ret_val) + return ret_val; + + /* We need to disable autoneg in order to force link and duplex. */ + + mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN; + + /* Are we forcing Full or Half Duplex? */ + if (hw->forced_speed_duplex == e1000_100_full || + hw->forced_speed_duplex == e1000_10_full) { + /* We want to force full duplex so we SET the full duplex bits in the + * Device and MII Control Registers. + */ + ctrl |= E1000_CTRL_FD; + mii_ctrl_reg |= MII_CR_FULL_DUPLEX; + DEBUGOUT("Full Duplex\n"); + } else { + /* We want to force half duplex so we CLEAR the full duplex bits in + * the Device and MII Control Registers. + */ + ctrl &= ~E1000_CTRL_FD; + mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX; + DEBUGOUT("Half Duplex\n"); + } + + /* Are we forcing 100Mbps??? */ + if (hw->forced_speed_duplex == e1000_100_full || + hw->forced_speed_duplex == e1000_100_half) { + /* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */ + ctrl |= E1000_CTRL_SPD_100; + mii_ctrl_reg |= MII_CR_SPEED_100; + mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10); + DEBUGOUT("Forcing 100mb "); + } else { + /* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */ + ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); + mii_ctrl_reg |= MII_CR_SPEED_10; + mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100); + DEBUGOUT("Forcing 10mb "); + } + + e1000_config_collision_dist(hw); + + /* Write the configured values back to the Device Control Reg. */ + ew32(CTRL, ctrl); + + if (hw->phy_type == e1000_phy_m88) { + ret_val = + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI + * forced whenever speed are duplex are forced. + */ + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data); + + /* Need to reset the PHY or these changes will be ignored */ + mii_ctrl_reg |= MII_CR_RESET; + + /* Disable MDI-X support for 10/100 */ + } else { + /* Clear Auto-Crossover to force MDI manually. IGP requires MDI + * forced whenever speed or duplex are forced. + */ + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; + phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; + + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + /* Write back the modified PHY MII control register. */ + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, mii_ctrl_reg); + if (ret_val) + return ret_val; + + udelay(1); + + /* The wait_autoneg_complete flag may be a little misleading here. + * Since we are forcing speed and duplex, Auto-Neg is not enabled. + * But we do want to delay for a period while forcing only so we + * don't generate false No Link messages. So we will wait here + * only if the user has set wait_autoneg_complete to 1, which is + * the default. + */ + if (hw->wait_autoneg_complete) { + /* We will wait for autoneg to complete. */ + DEBUGOUT("Waiting for forced speed/duplex link.\n"); + mii_status_reg = 0; + + /* We will wait for autoneg to complete or 4.5 seconds to expire. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Auto-Neg Complete bit + * to be set. + */ + ret_val = + e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = + e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_LINK_STATUS) + break; + msleep(100); + } + if ((i == 0) && (hw->phy_type == e1000_phy_m88)) { + /* We didn't get link. Reset the DSP and wait again for link. */ + ret_val = e1000_phy_reset_dsp(hw); + if (ret_val) { + DEBUGOUT("Error Resetting PHY DSP\n"); + return ret_val; + } + } + /* This loop will early-out if the link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + if (mii_status_reg & MII_SR_LINK_STATUS) + break; + msleep(100); + /* Read the MII Status Register and wait for Auto-Neg Complete bit + * to be set. + */ + ret_val = + e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = + e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + } + } + + if (hw->phy_type == e1000_phy_m88) { + /* Because we reset the PHY above, we need to re-force TX_CLK in the + * Extended PHY Specific Control Register to 25MHz clock. This value + * defaults back to a 2.5MHz clock when the PHY is reset. + */ + ret_val = + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_EPSCR_TX_CLK_25; + ret_val = + e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, + phy_data); + if (ret_val) + return ret_val; + + /* In addition, because of the s/w reset above, we need to enable CRS on + * TX. This must be set for both full and half duplex operation. + */ + ret_val = + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) + && (!hw->autoneg) + && (hw->forced_speed_duplex == e1000_10_full + || hw->forced_speed_duplex == e1000_10_half)) { + ret_val = e1000_polarity_reversal_workaround(hw); + if (ret_val) + return ret_val; + } + } + return E1000_SUCCESS; +} + +/** + * e1000_config_collision_dist - set collision distance register + * @hw: Struct containing variables accessed by shared code + * + * Sets the collision distance in the Transmit Control register. + * Link should have been established previously. Reads the speed and duplex + * information from the Device Status register. + */ +void e1000_config_collision_dist(struct e1000_hw *hw) +{ + u32 tctl, coll_dist; + + DEBUGFUNC("e1000_config_collision_dist"); + + if (hw->mac_type < e1000_82543) + coll_dist = E1000_COLLISION_DISTANCE_82542; + else + coll_dist = E1000_COLLISION_DISTANCE; + + tctl = er32(TCTL); + + tctl &= ~E1000_TCTL_COLD; + tctl |= coll_dist << E1000_COLD_SHIFT; + + ew32(TCTL, tctl); + E1000_WRITE_FLUSH(); +} + +/** + * e1000_config_mac_to_phy - sync phy and mac settings + * @hw: Struct containing variables accessed by shared code + * @mii_reg: data to write to the MII control register + * + * Sets MAC speed and duplex settings to reflect the those in the PHY + * The contents of the PHY register containing the needed information need to + * be passed in. + */ +static s32 e1000_config_mac_to_phy(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_config_mac_to_phy"); + + /* 82544 or newer MAC, Auto Speed Detection takes care of + * MAC speed/duplex configuration.*/ + if (hw->mac_type >= e1000_82544) + return E1000_SUCCESS; + + /* Read the Device Control Register and set the bits to Force Speed + * and Duplex. + */ + ctrl = er32(CTRL); + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS); + + /* Set up duplex in the Device Control and Transmit Control + * registers depending on negotiated values. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & M88E1000_PSSR_DPLX) + ctrl |= E1000_CTRL_FD; + else + ctrl &= ~E1000_CTRL_FD; + + e1000_config_collision_dist(hw); + + /* Set up speed in the Device Control register depending on + * negotiated values. + */ + if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) + ctrl |= E1000_CTRL_SPD_1000; + else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS) + ctrl |= E1000_CTRL_SPD_100; + + /* Write the configured values back to the Device Control Reg. */ + ew32(CTRL, ctrl); + return E1000_SUCCESS; +} + +/** + * e1000_force_mac_fc - force flow control settings + * @hw: Struct containing variables accessed by shared code + * + * Forces the MAC's flow control settings. + * Sets the TFCE and RFCE bits in the device control register to reflect + * the adapter settings. TFCE and RFCE need to be explicitly set by + * software when a Copper PHY is used because autonegotiation is managed + * by the PHY rather than the MAC. Software must also configure these + * bits when link is forced on a fiber connection. + */ +s32 e1000_force_mac_fc(struct e1000_hw *hw) +{ + u32 ctrl; + + DEBUGFUNC("e1000_force_mac_fc"); + + /* Get the current configuration of the Device Control Register */ + ctrl = er32(CTRL); + + /* Because we didn't get link via the internal auto-negotiation + * mechanism (we either forced link or we got link via PHY + * auto-neg), we have to manually enable/disable transmit an + * receive flow control. + * + * The "Case" statement below enables/disable flow control + * according to the "hw->fc" parameter. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause + * frames but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames + * frames but we do not receive pause frames). + * 3: Both Rx and TX flow control (symmetric) is enabled. + * other: No other values should be possible at this point. + */ + + switch (hw->fc) { + case E1000_FC_NONE: + ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE)); + break; + case E1000_FC_RX_PAUSE: + ctrl &= (~E1000_CTRL_TFCE); + ctrl |= E1000_CTRL_RFCE; + break; + case E1000_FC_TX_PAUSE: + ctrl &= (~E1000_CTRL_RFCE); + ctrl |= E1000_CTRL_TFCE; + break; + case E1000_FC_FULL: + ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + } + + /* Disable TX Flow Control for 82542 (rev 2.0) */ + if (hw->mac_type == e1000_82542_rev2_0) + ctrl &= (~E1000_CTRL_TFCE); + + ew32(CTRL, ctrl); + return E1000_SUCCESS; +} + +/** + * e1000_config_fc_after_link_up - configure flow control after autoneg + * @hw: Struct containing variables accessed by shared code + * + * Configures flow control settings after link is established + * Should be called immediately after a valid link has been established. + * Forces MAC flow control settings if link was forced. When in MII/GMII mode + * and autonegotiation is enabled, the MAC flow control settings will be set + * based on the flow control negotiated by the PHY. In TBI mode, the TFCE + * and RFCE bits will be automatically set to the negotiated flow control mode. + */ +static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_status_reg; + u16 mii_nway_adv_reg; + u16 mii_nway_lp_ability_reg; + u16 speed; + u16 duplex; + + DEBUGFUNC("e1000_config_fc_after_link_up"); + + /* Check for the case where we have fiber media and auto-neg failed + * so we had to force link. In this case, we need to force the + * configuration of the MAC to match the "fc" parameter. + */ + if (((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) + || ((hw->media_type == e1000_media_type_internal_serdes) + && (hw->autoneg_failed)) + || ((hw->media_type == e1000_media_type_copper) + && (!hw->autoneg))) { + ret_val = e1000_force_mac_fc(hw); + if (ret_val) { + DEBUGOUT("Error forcing flow control settings\n"); + return ret_val; + } + } + + /* Check for the case where we have copper media and auto-neg is + * enabled. In this case, we need to check and see if Auto-Neg + * has completed, and if so, how the PHY and link partner has + * flow control configured. + */ + if ((hw->media_type == e1000_media_type_copper) && hw->autoneg) { + /* Read the MII Status Register and check to see if AutoNeg + * has completed. We read this twice because this reg has + * some "sticky" (latched) bits. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) { + /* The AutoNeg process has completed, so we now need to + * read both the Auto Negotiation Advertisement Register + * (Address 4) and the Auto_Negotiation Base Page Ability + * Register (Address 5) to determine how flow control was + * negotiated. + */ + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, + &mii_nway_adv_reg); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, + &mii_nway_lp_ability_reg); + if (ret_val) + return ret_val; + + /* Two bits in the Auto Negotiation Advertisement Register + * (Address 4) and two bits in the Auto Negotiation Base + * Page Ability Register (Address 5) determine flow control + * for both the PHY and the link partner. The following + * table, taken out of the IEEE 802.3ab/D6.0 dated March 25, + * 1999, describes these PAUSE resolution bits and how flow + * control is determined based upon these settings. + * NOTE: DC = Don't Care + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution + *-------|---------|-------|---------|-------------------- + * 0 | 0 | DC | DC | E1000_FC_NONE + * 0 | 1 | 0 | DC | E1000_FC_NONE + * 0 | 1 | 1 | 0 | E1000_FC_NONE + * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE + * 1 | 0 | 0 | DC | E1000_FC_NONE + * 1 | DC | 1 | DC | E1000_FC_FULL + * 1 | 1 | 0 | 0 | E1000_FC_NONE + * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE + * + */ + /* Are both PAUSE bits set to 1? If so, this implies + * Symmetric Flow Control is enabled at both ends. The + * ASM_DIR bits are irrelevant per the spec. + * + * For Symmetric Flow Control: + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 1 | DC | 1 | DC | E1000_FC_FULL + * + */ + if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) { + /* Now we need to check if the user selected RX ONLY + * of pause frames. In this case, we had to advertise + * FULL flow control because we could not advertise RX + * ONLY. Hence, we must now check to see if we need to + * turn OFF the TRANSMISSION of PAUSE frames. + */ + if (hw->original_fc == E1000_FC_FULL) { + hw->fc = E1000_FC_FULL; + DEBUGOUT("Flow Control = FULL.\n"); + } else { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT + ("Flow Control = RX PAUSE frames only.\n"); + } + } + /* For receiving PAUSE frames ONLY. + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE + * + */ + else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && + (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) + { + hw->fc = E1000_FC_TX_PAUSE; + DEBUGOUT + ("Flow Control = TX PAUSE frames only.\n"); + } + /* For transmitting PAUSE frames ONLY. + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE + * + */ + else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && + !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) + { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT + ("Flow Control = RX PAUSE frames only.\n"); + } + /* Per the IEEE spec, at this point flow control should be + * disabled. However, we want to consider that we could + * be connected to a legacy switch that doesn't advertise + * desired flow control, but can be forced on the link + * partner. So if we advertised no flow control, that is + * what we will resolve to. If we advertised some kind of + * receive capability (Rx Pause Only or Full Flow Control) + * and the link partner advertised none, we will configure + * ourselves to enable Rx Flow Control only. We can do + * this safely for two reasons: If the link partner really + * didn't want flow control enabled, and we enable Rx, no + * harm done since we won't be receiving any PAUSE frames + * anyway. If the intent on the link partner was to have + * flow control enabled, then by us enabling RX only, we + * can at least receive pause frames and process them. + * This is a good idea because in most cases, since we are + * predominantly a server NIC, more times than not we will + * be asked to delay transmission of packets than asking + * our link partner to pause transmission of frames. + */ + else if ((hw->original_fc == E1000_FC_NONE || + hw->original_fc == E1000_FC_TX_PAUSE) || + hw->fc_strict_ieee) { + hw->fc = E1000_FC_NONE; + DEBUGOUT("Flow Control = NONE.\n"); + } else { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT + ("Flow Control = RX PAUSE frames only.\n"); + } + + /* Now we need to do one last check... If we auto- + * negotiated to HALF DUPLEX, flow control should not be + * enabled per IEEE 802.3 spec. + */ + ret_val = + e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT + ("Error getting link speed and duplex\n"); + return ret_val; + } + + if (duplex == HALF_DUPLEX) + hw->fc = E1000_FC_NONE; + + /* Now we call a subroutine to actually force the MAC + * controller to use the correct flow control settings. + */ + ret_val = e1000_force_mac_fc(hw); + if (ret_val) { + DEBUGOUT + ("Error forcing flow control settings\n"); + return ret_val; + } + } else { + DEBUGOUT + ("Copper PHY and Auto Neg has not completed.\n"); + } + } + return E1000_SUCCESS; +} + +/** + * e1000_check_for_serdes_link_generic - Check for link (Serdes) + * @hw: pointer to the HW structure + * + * Checks for link up on the hardware. If link is not up and we have + * a signal, then we need to force link up. + */ +static s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw) +{ + u32 rxcw; + u32 ctrl; + u32 status; + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_check_for_serdes_link_generic"); + + ctrl = er32(CTRL); + status = er32(STATUS); + rxcw = er32(RXCW); + + /* + * If we don't have link (auto-negotiation failed or link partner + * cannot auto-negotiate), and our link partner is not trying to + * auto-negotiate with us (we are receiving idles or data), + * we need to force link up. We also need to give auto-negotiation + * time to complete. + */ + /* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */ + if ((!(status & E1000_STATUS_LU)) && (!(rxcw & E1000_RXCW_C))) { + if (hw->autoneg_failed == 0) { + hw->autoneg_failed = 1; + goto out; + } + DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n"); + + /* Disable auto-negotiation in the TXCW register */ + ew32(TXCW, (hw->txcw & ~E1000_TXCW_ANE)); + + /* Force link-up and also force full-duplex. */ + ctrl = er32(CTRL); + ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD); + ew32(CTRL, ctrl); + + /* Configure Flow Control after forcing link up. */ + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error configuring flow control\n"); + goto out; + } + } else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { + /* + * If we are forcing link and we are receiving /C/ ordered + * sets, re-enable auto-negotiation in the TXCW register + * and disable forced link in the Device Control register + * in an attempt to auto-negotiate with our link partner. + */ + DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n"); + ew32(TXCW, hw->txcw); + ew32(CTRL, (ctrl & ~E1000_CTRL_SLU)); + + hw->serdes_has_link = true; + } else if (!(E1000_TXCW_ANE & er32(TXCW))) { + /* + * If we force link for non-auto-negotiation switch, check + * link status based on MAC synchronization for internal + * serdes media type. + */ + /* SYNCH bit and IV bit are sticky. */ + udelay(10); + rxcw = er32(RXCW); + if (rxcw & E1000_RXCW_SYNCH) { + if (!(rxcw & E1000_RXCW_IV)) { + hw->serdes_has_link = true; + DEBUGOUT("SERDES: Link up - forced.\n"); + } + } else { + hw->serdes_has_link = false; + DEBUGOUT("SERDES: Link down - force failed.\n"); + } + } + + if (E1000_TXCW_ANE & er32(TXCW)) { + status = er32(STATUS); + if (status & E1000_STATUS_LU) { + /* SYNCH bit and IV bit are sticky, so reread rxcw. */ + udelay(10); + rxcw = er32(RXCW); + if (rxcw & E1000_RXCW_SYNCH) { + if (!(rxcw & E1000_RXCW_IV)) { + hw->serdes_has_link = true; + DEBUGOUT("SERDES: Link up - autoneg " + "completed successfully.\n"); + } else { + hw->serdes_has_link = false; + DEBUGOUT("SERDES: Link down - invalid" + "codewords detected in autoneg.\n"); + } + } else { + hw->serdes_has_link = false; + DEBUGOUT("SERDES: Link down - no sync.\n"); + } + } else { + hw->serdes_has_link = false; + DEBUGOUT("SERDES: Link down - autoneg failed\n"); + } + } + + out: + return ret_val; +} + +/** + * e1000_check_for_link + * @hw: Struct containing variables accessed by shared code + * + * Checks to see if the link status of the hardware has changed. + * Called by any function that needs to check the link status of the adapter. + */ +s32 e1000_check_for_link(struct e1000_hw *hw) +{ + u32 rxcw = 0; + u32 ctrl; + u32 status; + u32 rctl; + u32 icr; + u32 signal = 0; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_for_link"); + + ctrl = er32(CTRL); + status = er32(STATUS); + + /* On adapters with a MAC newer than 82544, SW Definable pin 1 will be + * set when the optics detect a signal. On older adapters, it will be + * cleared when there is a signal. This applies to fiber media only. + */ + if ((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) { + rxcw = er32(RXCW); + + if (hw->media_type == e1000_media_type_fiber) { + signal = + (hw->mac_type > + e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; + if (status & E1000_STATUS_LU) + hw->get_link_status = false; + } + } + + /* If we have a copper PHY then we only want to go out to the PHY + * registers to see if Auto-Neg has completed and/or if our link + * status has changed. The get_link_status flag will be set if we + * receive a Link Status Change interrupt or we have Rx Sequence + * Errors. + */ + if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) { + /* First we want to see if the MII Status Register reports + * link. If so, then we want to get the current speed/duplex + * of the PHY. + * Read the register twice since the link bit is sticky. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & MII_SR_LINK_STATUS) { + hw->get_link_status = false; + /* Check if there was DownShift, must be checked immediately after + * link-up */ + e1000_check_downshift(hw); + + /* If we are on 82544 or 82543 silicon and speed/duplex + * are forced to 10H or 10F, then we will implement the polarity + * reversal workaround. We disable interrupts first, and upon + * returning, place the devices interrupt state to its previous + * value except for the link status change interrupt which will + * happen due to the execution of this workaround. + */ + + if ((hw->mac_type == e1000_82544 + || hw->mac_type == e1000_82543) && (!hw->autoneg) + && (hw->forced_speed_duplex == e1000_10_full + || hw->forced_speed_duplex == e1000_10_half)) { + ew32(IMC, 0xffffffff); + ret_val = + e1000_polarity_reversal_workaround(hw); + icr = er32(ICR); + ew32(ICS, (icr & ~E1000_ICS_LSC)); + ew32(IMS, IMS_ENABLE_MASK); + } + + } else { + /* No link detected */ + e1000_config_dsp_after_link_change(hw, false); + return 0; + } + + /* If we are forcing speed/duplex, then we simply return since + * we have already determined whether we have link or not. + */ + if (!hw->autoneg) + return -E1000_ERR_CONFIG; + + /* optimize the dsp settings for the igp phy */ + e1000_config_dsp_after_link_change(hw, true); + + /* We have a M88E1000 PHY and Auto-Neg is enabled. If we + * have Si on board that is 82544 or newer, Auto + * Speed Detection takes care of MAC speed/duplex + * configuration. So we only need to configure Collision + * Distance in the MAC. Otherwise, we need to force + * speed/duplex on the MAC to the current PHY speed/duplex + * settings. + */ + if (hw->mac_type >= e1000_82544) + e1000_config_collision_dist(hw); + else { + ret_val = e1000_config_mac_to_phy(hw); + if (ret_val) { + DEBUGOUT + ("Error configuring MAC to PHY settings\n"); + return ret_val; + } + } + + /* Configure Flow Control now that Auto-Neg has completed. First, we + * need to restore the desired flow control settings because we may + * have had to re-autoneg with a different link partner. + */ + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error configuring flow control\n"); + return ret_val; + } + + /* At this point we know that we are on copper and we have + * auto-negotiated link. These are conditions for checking the link + * partner capability register. We use the link speed to determine if + * TBI compatibility needs to be turned on or off. If the link is not + * at gigabit speed, then TBI compatibility is not needed. If we are + * at gigabit speed, we turn on TBI compatibility. + */ + if (hw->tbi_compatibility_en) { + u16 speed, duplex; + ret_val = + e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT + ("Error getting link speed and duplex\n"); + return ret_val; + } + if (speed != SPEED_1000) { + /* If link speed is not set to gigabit speed, we do not need + * to enable TBI compatibility. + */ + if (hw->tbi_compatibility_on) { + /* If we previously were in the mode, turn it off. */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_SBP; + ew32(RCTL, rctl); + hw->tbi_compatibility_on = false; + } + } else { + /* If TBI compatibility is was previously off, turn it on. For + * compatibility with a TBI link partner, we will store bad + * packets. Some frames have an additional byte on the end and + * will look like CRC errors to to the hardware. + */ + if (!hw->tbi_compatibility_on) { + hw->tbi_compatibility_on = true; + rctl = er32(RCTL); + rctl |= E1000_RCTL_SBP; + ew32(RCTL, rctl); + } + } + } + } + + if ((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) + e1000_check_for_serdes_link_generic(hw); + + return E1000_SUCCESS; +} + +/** + * e1000_get_speed_and_duplex + * @hw: Struct containing variables accessed by shared code + * @speed: Speed of the connection + * @duplex: Duplex setting of the connection + + * Detects the current speed and duplex settings of the hardware. + */ +s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed, u16 *duplex) +{ + u32 status; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_get_speed_and_duplex"); + + if (hw->mac_type >= e1000_82543) { + status = er32(STATUS); + if (status & E1000_STATUS_SPEED_1000) { + *speed = SPEED_1000; + DEBUGOUT("1000 Mbs, "); + } else if (status & E1000_STATUS_SPEED_100) { + *speed = SPEED_100; + DEBUGOUT("100 Mbs, "); + } else { + *speed = SPEED_10; + DEBUGOUT("10 Mbs, "); + } + + if (status & E1000_STATUS_FD) { + *duplex = FULL_DUPLEX; + DEBUGOUT("Full Duplex\n"); + } else { + *duplex = HALF_DUPLEX; + DEBUGOUT(" Half Duplex\n"); + } + } else { + DEBUGOUT("1000 Mbs, Full Duplex\n"); + *speed = SPEED_1000; + *duplex = FULL_DUPLEX; + } + + /* IGP01 PHY may advertise full duplex operation after speed downgrade even + * if it is operating at half duplex. Here we set the duplex settings to + * match the duplex in the link partner's capabilities. + */ + if (hw->phy_type == e1000_phy_igp && hw->speed_downgraded) { + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &phy_data); + if (ret_val) + return ret_val; + + if (!(phy_data & NWAY_ER_LP_NWAY_CAPS)) + *duplex = HALF_DUPLEX; + else { + ret_val = + e1000_read_phy_reg(hw, PHY_LP_ABILITY, &phy_data); + if (ret_val) + return ret_val; + if ((*speed == SPEED_100 + && !(phy_data & NWAY_LPAR_100TX_FD_CAPS)) + || (*speed == SPEED_10 + && !(phy_data & NWAY_LPAR_10T_FD_CAPS))) + *duplex = HALF_DUPLEX; + } + } + + return E1000_SUCCESS; +} + +/** + * e1000_wait_autoneg + * @hw: Struct containing variables accessed by shared code + * + * Blocks until autoneg completes or times out (~4.5 seconds) + */ +static s32 e1000_wait_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 i; + u16 phy_data; + + DEBUGFUNC("e1000_wait_autoneg"); + DEBUGOUT("Waiting for Auto-Neg to complete.\n"); + + /* We will wait for autoneg to complete or 4.5 seconds to expire. */ + for (i = PHY_AUTO_NEG_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Auto-Neg + * Complete bit to be set. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + if (phy_data & MII_SR_AUTONEG_COMPLETE) { + return E1000_SUCCESS; + } + msleep(100); + } + return E1000_SUCCESS; +} + +/** + * e1000_raise_mdi_clk - Raises the Management Data Clock + * @hw: Struct containing variables accessed by shared code + * @ctrl: Device control register's current value + */ +static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl) +{ + /* Raise the clock input to the Management Data Clock (by setting the MDC + * bit), and then delay 10 microseconds. + */ + ew32(CTRL, (*ctrl | E1000_CTRL_MDC)); + E1000_WRITE_FLUSH(); + udelay(10); +} + +/** + * e1000_lower_mdi_clk - Lowers the Management Data Clock + * @hw: Struct containing variables accessed by shared code + * @ctrl: Device control register's current value + */ +static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl) +{ + /* Lower the clock input to the Management Data Clock (by clearing the MDC + * bit), and then delay 10 microseconds. + */ + ew32(CTRL, (*ctrl & ~E1000_CTRL_MDC)); + E1000_WRITE_FLUSH(); + udelay(10); +} + +/** + * e1000_shift_out_mdi_bits - Shifts data bits out to the PHY + * @hw: Struct containing variables accessed by shared code + * @data: Data to send out to the PHY + * @count: Number of bits to shift out + * + * Bits are shifted out in MSB to LSB order. + */ +static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, u16 count) +{ + u32 ctrl; + u32 mask; + + /* We need to shift "count" number of bits out to the PHY. So, the value + * in the "data" parameter will be shifted out to the PHY one bit at a + * time. In order to do this, "data" must be broken down into bits. + */ + mask = 0x01; + mask <<= (count - 1); + + ctrl = er32(CTRL); + + /* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */ + ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR); + + while (mask) { + /* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and + * then raising and lowering the Management Data Clock. A "0" is + * shifted out to the PHY by setting the MDIO bit to "0" and then + * raising and lowering the clock. + */ + if (data & mask) + ctrl |= E1000_CTRL_MDIO; + else + ctrl &= ~E1000_CTRL_MDIO; + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + udelay(10); + + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + mask = mask >> 1; + } +} + +/** + * e1000_shift_in_mdi_bits - Shifts data bits in from the PHY + * @hw: Struct containing variables accessed by shared code + * + * Bits are shifted in in MSB to LSB order. + */ +static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw) +{ + u32 ctrl; + u16 data = 0; + u8 i; + + /* In order to read a register from the PHY, we need to shift in a total + * of 18 bits from the PHY. The first two bit (turnaround) times are used + * to avoid contention on the MDIO pin when a read operation is performed. + * These two bits are ignored by us and thrown away. Bits are "shifted in" + * by raising the input to the Management Data Clock (setting the MDC bit), + * and then reading the value of the MDIO bit. + */ + ctrl = er32(CTRL); + + /* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */ + ctrl &= ~E1000_CTRL_MDIO_DIR; + ctrl &= ~E1000_CTRL_MDIO; + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + /* Raise and Lower the clock before reading in the data. This accounts for + * the turnaround bits. The first clock occurred when we clocked out the + * last bit of the Register Address. + */ + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + for (data = 0, i = 0; i < 16; i++) { + data = data << 1; + e1000_raise_mdi_clk(hw, &ctrl); + ctrl = er32(CTRL); + /* Check to see if we shifted in a "1". */ + if (ctrl & E1000_CTRL_MDIO) + data |= 1; + e1000_lower_mdi_clk(hw, &ctrl); + } + + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + return data; +} + + +/** + * e1000_read_phy_reg - read a phy register + * @hw: Struct containing variables accessed by shared code + * @reg_addr: address of the PHY register to read + * + * Reads the value from a PHY register, if the value is on a specific non zero + * page, sets the page first. + */ +s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 *phy_data) +{ + u32 ret_val; + + DEBUGFUNC("e1000_read_phy_reg"); + + if ((hw->phy_type == e1000_phy_igp) && + (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { + ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, + (u16) reg_addr); + if (ret_val) + return ret_val; + } + + ret_val = e1000_read_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, + phy_data); + + return ret_val; +} + +static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 *phy_data) +{ + u32 i; + u32 mdic = 0; + const u32 phy_addr = 1; + + DEBUGFUNC("e1000_read_phy_reg_ex"); + + if (reg_addr > MAX_PHY_REG_ADDRESS) { + DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); + return -E1000_ERR_PARAM; + } + + if (hw->mac_type > e1000_82543) { + /* Set up Op-code, Phy Address, and register address in the MDI + * Control register. The MAC will take care of interfacing with the + * PHY to retrieve the desired data. + */ + mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) | + (phy_addr << E1000_MDIC_PHY_SHIFT) | + (E1000_MDIC_OP_READ)); + + ew32(MDIC, mdic); + + /* Poll the ready bit to see if the MDI read completed */ + for (i = 0; i < 64; i++) { + udelay(50); + mdic = er32(MDIC); + if (mdic & E1000_MDIC_READY) + break; + } + if (!(mdic & E1000_MDIC_READY)) { + DEBUGOUT("MDI Read did not complete\n"); + return -E1000_ERR_PHY; + } + if (mdic & E1000_MDIC_ERROR) { + DEBUGOUT("MDI Error\n"); + return -E1000_ERR_PHY; + } + *phy_data = (u16) mdic; + } else { + /* We must first send a preamble through the MDIO pin to signal the + * beginning of an MII instruction. This is done by sending 32 + * consecutive "1" bits. + */ + e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); + + /* Now combine the next few fields that are required for a read + * operation. We use this method instead of calling the + * e1000_shift_out_mdi_bits routine five different times. The format of + * a MII read instruction consists of a shift out of 14 bits and is + * defined as follows: + * + * followed by a shift in of 18 bits. This first two bits shifted in + * are TurnAround bits used to avoid contention on the MDIO pin when a + * READ operation is performed. These two bits are thrown away + * followed by a shift in of 16 bits which contains the desired data. + */ + mdic = ((reg_addr) | (phy_addr << 5) | + (PHY_OP_READ << 10) | (PHY_SOF << 12)); + + e1000_shift_out_mdi_bits(hw, mdic, 14); + + /* Now that we've shifted out the read command to the MII, we need to + * "shift in" the 16-bit value (18 total bits) of the requested PHY + * register address. + */ + *phy_data = e1000_shift_in_mdi_bits(hw); + } + return E1000_SUCCESS; +} + +/** + * e1000_write_phy_reg - write a phy register + * + * @hw: Struct containing variables accessed by shared code + * @reg_addr: address of the PHY register to write + * @data: data to write to the PHY + + * Writes a value to a PHY register + */ +s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 phy_data) +{ + u32 ret_val; + + DEBUGFUNC("e1000_write_phy_reg"); + + if ((hw->phy_type == e1000_phy_igp) && + (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { + ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, + (u16) reg_addr); + if (ret_val) + return ret_val; + } + + ret_val = e1000_write_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, + phy_data); + + return ret_val; +} + +static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 phy_data) +{ + u32 i; + u32 mdic = 0; + const u32 phy_addr = 1; + + DEBUGFUNC("e1000_write_phy_reg_ex"); + + if (reg_addr > MAX_PHY_REG_ADDRESS) { + DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); + return -E1000_ERR_PARAM; + } + + if (hw->mac_type > e1000_82543) { + /* Set up Op-code, Phy Address, register address, and data intended + * for the PHY register in the MDI Control register. The MAC will take + * care of interfacing with the PHY to send the desired data. + */ + mdic = (((u32) phy_data) | + (reg_addr << E1000_MDIC_REG_SHIFT) | + (phy_addr << E1000_MDIC_PHY_SHIFT) | + (E1000_MDIC_OP_WRITE)); + + ew32(MDIC, mdic); + + /* Poll the ready bit to see if the MDI read completed */ + for (i = 0; i < 641; i++) { + udelay(5); + mdic = er32(MDIC); + if (mdic & E1000_MDIC_READY) + break; + } + if (!(mdic & E1000_MDIC_READY)) { + DEBUGOUT("MDI Write did not complete\n"); + return -E1000_ERR_PHY; + } + } else { + /* We'll need to use the SW defined pins to shift the write command + * out to the PHY. We first send a preamble to the PHY to signal the + * beginning of the MII instruction. This is done by sending 32 + * consecutive "1" bits. + */ + e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); + + /* Now combine the remaining required fields that will indicate a + * write operation. We use this method instead of calling the + * e1000_shift_out_mdi_bits routine for each field in the command. The + * format of a MII write instruction is as follows: + * . + */ + mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) | + (PHY_OP_WRITE << 12) | (PHY_SOF << 14)); + mdic <<= 16; + mdic |= (u32) phy_data; + + e1000_shift_out_mdi_bits(hw, mdic, 32); + } + + return E1000_SUCCESS; +} + +/** + * e1000_phy_hw_reset - reset the phy, hardware style + * @hw: Struct containing variables accessed by shared code + * + * Returns the PHY to the power-on reset state + */ +s32 e1000_phy_hw_reset(struct e1000_hw *hw) +{ + u32 ctrl, ctrl_ext; + u32 led_ctrl; + s32 ret_val; + + DEBUGFUNC("e1000_phy_hw_reset"); + + DEBUGOUT("Resetting Phy...\n"); + + if (hw->mac_type > e1000_82543) { + /* Read the device control register and assert the E1000_CTRL_PHY_RST + * bit. Then, take it out of reset. + * For e1000 hardware, we delay for 10ms between the assert + * and deassert. + */ + ctrl = er32(CTRL); + ew32(CTRL, ctrl | E1000_CTRL_PHY_RST); + E1000_WRITE_FLUSH(); + + msleep(10); + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + } else { + /* Read the Extended Device Control Register, assert the PHY_RESET_DIR + * bit to put the PHY into reset. Then, take it out of reset. + */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR; + ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + msleep(10); + ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + } + udelay(150); + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* Wait for FW to finish PHY configuration. */ + ret_val = e1000_get_phy_cfg_done(hw); + if (ret_val != E1000_SUCCESS) + return ret_val; + + return ret_val; +} + +/** + * e1000_phy_reset - reset the phy to commit settings + * @hw: Struct containing variables accessed by shared code + * + * Resets the PHY + * Sets bit 15 of the MII Control register + */ +s32 e1000_phy_reset(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_phy_reset"); + + switch (hw->phy_type) { + case e1000_phy_igp: + ret_val = e1000_phy_hw_reset(hw); + if (ret_val) + return ret_val; + break; + default: + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= MII_CR_RESET; + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); + if (ret_val) + return ret_val; + + udelay(1); + break; + } + + if (hw->phy_type == e1000_phy_igp) + e1000_phy_init_script(hw); + + return E1000_SUCCESS; +} + +/** + * e1000_detect_gig_phy - check the phy type + * @hw: Struct containing variables accessed by shared code + * + * Probes the expected PHY address for known PHY IDs + */ +static s32 e1000_detect_gig_phy(struct e1000_hw *hw) +{ + s32 phy_init_status, ret_val; + u16 phy_id_high, phy_id_low; + bool match = false; + + DEBUGFUNC("e1000_detect_gig_phy"); + + if (hw->phy_id != 0) + return E1000_SUCCESS; + + /* Read the PHY ID Registers to identify which PHY is onboard. */ + ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high); + if (ret_val) + return ret_val; + + hw->phy_id = (u32) (phy_id_high << 16); + udelay(20); + ret_val = e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low); + if (ret_val) + return ret_val; + + hw->phy_id |= (u32) (phy_id_low & PHY_REVISION_MASK); + hw->phy_revision = (u32) phy_id_low & ~PHY_REVISION_MASK; + + switch (hw->mac_type) { + case e1000_82543: + if (hw->phy_id == M88E1000_E_PHY_ID) + match = true; + break; + case e1000_82544: + if (hw->phy_id == M88E1000_I_PHY_ID) + match = true; + break; + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + if (hw->phy_id == M88E1011_I_PHY_ID) + match = true; + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (hw->phy_id == IGP01E1000_I_PHY_ID) + match = true; + break; + default: + DEBUGOUT1("Invalid MAC type %d\n", hw->mac_type); + return -E1000_ERR_CONFIG; + } + phy_init_status = e1000_set_phy_type(hw); + + if ((match) && (phy_init_status == E1000_SUCCESS)) { + DEBUGOUT1("PHY ID 0x%X detected\n", hw->phy_id); + return E1000_SUCCESS; + } + DEBUGOUT1("Invalid PHY ID 0x%X\n", hw->phy_id); + return -E1000_ERR_PHY; +} + +/** + * e1000_phy_reset_dsp - reset DSP + * @hw: Struct containing variables accessed by shared code + * + * Resets the PHY's DSP + */ +static s32 e1000_phy_reset_dsp(struct e1000_hw *hw) +{ + s32 ret_val; + DEBUGFUNC("e1000_phy_reset_dsp"); + + do { + ret_val = e1000_write_phy_reg(hw, 29, 0x001d); + if (ret_val) + break; + ret_val = e1000_write_phy_reg(hw, 30, 0x00c1); + if (ret_val) + break; + ret_val = e1000_write_phy_reg(hw, 30, 0x0000); + if (ret_val) + break; + ret_val = E1000_SUCCESS; + } while (0); + + return ret_val; +} + +/** + * e1000_phy_igp_get_info - get igp specific registers + * @hw: Struct containing variables accessed by shared code + * @phy_info: PHY information structure + * + * Get PHY information from various PHY registers for igp PHY only. + */ +static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data, min_length, max_length, average; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_igp_get_info"); + + /* The downshift status is checked only once, after link is established, + * and it stored in the hw->speed_downgraded parameter. */ + phy_info->downshift = (e1000_downshift) hw->speed_downgraded; + + /* IGP01E1000 does not need to support it. */ + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; + + /* IGP01E1000 always correct polarity reversal */ + phy_info->polarity_correction = e1000_polarity_reversal_enabled; + + /* Check polarity status */ + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = + (e1000_auto_x_mode) ((phy_data & IGP01E1000_PSSR_MDIX) >> + IGP01E1000_PSSR_MDIX_SHIFT); + + if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == + IGP01E1000_PSSR_SPEED_1000MBPS) { + /* Local/Remote Receiver Information are only valid at 1000 Mbps */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> + SR_1000T_LOCAL_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> + SR_1000T_REMOTE_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + + /* Get cable length */ + ret_val = e1000_get_cable_length(hw, &min_length, &max_length); + if (ret_val) + return ret_val; + + /* Translate to old method */ + average = (max_length + min_length) / 2; + + if (average <= e1000_igp_cable_length_50) + phy_info->cable_length = e1000_cable_length_50; + else if (average <= e1000_igp_cable_length_80) + phy_info->cable_length = e1000_cable_length_50_80; + else if (average <= e1000_igp_cable_length_110) + phy_info->cable_length = e1000_cable_length_80_110; + else if (average <= e1000_igp_cable_length_140) + phy_info->cable_length = e1000_cable_length_110_140; + else + phy_info->cable_length = e1000_cable_length_140; + } + + return E1000_SUCCESS; +} + +/** + * e1000_phy_m88_get_info - get m88 specific registers + * @hw: Struct containing variables accessed by shared code + * @phy_info: PHY information structure + * + * Get PHY information from various PHY registers for m88 PHY only. + */ +static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_m88_get_info"); + + /* The downshift status is checked only once, after link is established, + * and it stored in the hw->speed_downgraded parameter. */ + phy_info->downshift = (e1000_downshift) hw->speed_downgraded; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_info->extended_10bt_distance = + ((phy_data & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >> + M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT) ? + e1000_10bt_ext_dist_enable_lower : + e1000_10bt_ext_dist_enable_normal; + + phy_info->polarity_correction = + ((phy_data & M88E1000_PSCR_POLARITY_REVERSAL) >> + M88E1000_PSCR_POLARITY_REVERSAL_SHIFT) ? + e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; + + /* Check polarity status */ + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = + (e1000_auto_x_mode) ((phy_data & M88E1000_PSSR_MDIX) >> + M88E1000_PSSR_MDIX_SHIFT); + + if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) { + /* Cable Length Estimation and Local/Remote Receiver Information + * are only valid at 1000 Mbps. + */ + phy_info->cable_length = + (e1000_cable_length) ((phy_data & + M88E1000_PSSR_CABLE_LENGTH) >> + M88E1000_PSSR_CABLE_LENGTH_SHIFT); + + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> + SR_1000T_LOCAL_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> + SR_1000T_REMOTE_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + + } + + return E1000_SUCCESS; +} + +/** + * e1000_phy_get_info - request phy info + * @hw: Struct containing variables accessed by shared code + * @phy_info: PHY information structure + * + * Get PHY information from various PHY registers + */ +s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_phy_get_info"); + + phy_info->cable_length = e1000_cable_length_undefined; + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined; + phy_info->cable_polarity = e1000_rev_polarity_undefined; + phy_info->downshift = e1000_downshift_undefined; + phy_info->polarity_correction = e1000_polarity_reversal_undefined; + phy_info->mdix_mode = e1000_auto_x_mode_undefined; + phy_info->local_rx = e1000_1000t_rx_status_undefined; + phy_info->remote_rx = e1000_1000t_rx_status_undefined; + + if (hw->media_type != e1000_media_type_copper) { + DEBUGOUT("PHY info is only valid for copper media\n"); + return -E1000_ERR_CONFIG; + } + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if ((phy_data & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS) { + DEBUGOUT("PHY info is only valid if link is up\n"); + return -E1000_ERR_CONFIG; + } + + if (hw->phy_type == e1000_phy_igp) + return e1000_phy_igp_get_info(hw, phy_info); + else + return e1000_phy_m88_get_info(hw, phy_info); +} + +s32 e1000_validate_mdi_setting(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_validate_mdi_settings"); + + if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) { + DEBUGOUT("Invalid MDI setting detected\n"); + hw->mdix = 1; + return -E1000_ERR_CONFIG; + } + return E1000_SUCCESS; +} + +/** + * e1000_init_eeprom_params - initialize sw eeprom vars + * @hw: Struct containing variables accessed by shared code + * + * Sets up eeprom variables in the hw struct. Must be called after mac_type + * is configured. + */ +s32 e1000_init_eeprom_params(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd = er32(EECD); + s32 ret_val = E1000_SUCCESS; + u16 eeprom_size; + + DEBUGFUNC("e1000_init_eeprom_params"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + eeprom->type = e1000_eeprom_microwire; + eeprom->word_size = 64; + eeprom->opcode_bits = 3; + eeprom->address_bits = 6; + eeprom->delay_usec = 50; + break; + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + eeprom->type = e1000_eeprom_microwire; + eeprom->opcode_bits = 3; + eeprom->delay_usec = 50; + if (eecd & E1000_EECD_SIZE) { + eeprom->word_size = 256; + eeprom->address_bits = 8; + } else { + eeprom->word_size = 64; + eeprom->address_bits = 6; + } + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (eecd & E1000_EECD_TYPE) { + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + } else { + eeprom->type = e1000_eeprom_microwire; + eeprom->opcode_bits = 3; + eeprom->delay_usec = 50; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->word_size = 256; + eeprom->address_bits = 8; + } else { + eeprom->word_size = 64; + eeprom->address_bits = 6; + } + } + break; + default: + break; + } + + if (eeprom->type == e1000_eeprom_spi) { + /* eeprom_size will be an enum [0..8] that maps to eeprom sizes 128B to + * 32KB (incremented by powers of 2). + */ + /* Set to default value for initial eeprom read. */ + eeprom->word_size = 64; + ret_val = e1000_read_eeprom(hw, EEPROM_CFG, 1, &eeprom_size); + if (ret_val) + return ret_val; + eeprom_size = + (eeprom_size & EEPROM_SIZE_MASK) >> EEPROM_SIZE_SHIFT; + /* 256B eeprom size was not supported in earlier hardware, so we + * bump eeprom_size up one to ensure that "1" (which maps to 256B) + * is never the result used in the shifting logic below. */ + if (eeprom_size) + eeprom_size++; + + eeprom->word_size = 1 << (eeprom_size + EEPROM_WORD_SIZE_SHIFT); + } + return ret_val; +} + +/** + * e1000_raise_ee_clk - Raises the EEPROM's clock input. + * @hw: Struct containing variables accessed by shared code + * @eecd: EECD's current value + */ +static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd) +{ + /* Raise the clock input to the EEPROM (by setting the SK bit), and then + * wait microseconds. + */ + *eecd = *eecd | E1000_EECD_SK; + ew32(EECD, *eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); +} + +/** + * e1000_lower_ee_clk - Lowers the EEPROM's clock input. + * @hw: Struct containing variables accessed by shared code + * @eecd: EECD's current value + */ +static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd) +{ + /* Lower the clock input to the EEPROM (by clearing the SK bit), and then + * wait 50 microseconds. + */ + *eecd = *eecd & ~E1000_EECD_SK; + ew32(EECD, *eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); +} + +/** + * e1000_shift_out_ee_bits - Shift data bits out to the EEPROM. + * @hw: Struct containing variables accessed by shared code + * @data: data to send to the EEPROM + * @count: number of bits to shift out + */ +static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, u16 count) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + u32 mask; + + /* We need to shift "count" bits out to the EEPROM. So, value in the + * "data" parameter will be shifted out to the EEPROM one bit at a time. + * In order to do this, "data" must be broken down into bits. + */ + mask = 0x01 << (count - 1); + eecd = er32(EECD); + if (eeprom->type == e1000_eeprom_microwire) { + eecd &= ~E1000_EECD_DO; + } else if (eeprom->type == e1000_eeprom_spi) { + eecd |= E1000_EECD_DO; + } + do { + /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1", + * and then raising and then lowering the clock (the SK bit controls + * the clock input to the EEPROM). A "0" is shifted out to the EEPROM + * by setting "DI" to "0" and then raising and then lowering the clock. + */ + eecd &= ~E1000_EECD_DI; + + if (data & mask) + eecd |= E1000_EECD_DI; + + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + + udelay(eeprom->delay_usec); + + e1000_raise_ee_clk(hw, &eecd); + e1000_lower_ee_clk(hw, &eecd); + + mask = mask >> 1; + + } while (mask); + + /* We leave the "DI" bit set to "0" when we leave this routine. */ + eecd &= ~E1000_EECD_DI; + ew32(EECD, eecd); +} + +/** + * e1000_shift_in_ee_bits - Shift data bits in from the EEPROM + * @hw: Struct containing variables accessed by shared code + * @count: number of bits to shift in + */ +static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count) +{ + u32 eecd; + u32 i; + u16 data; + + /* In order to read a register from the EEPROM, we need to shift 'count' + * bits in from the EEPROM. Bits are "shifted in" by raising the clock + * input to the EEPROM (setting the SK bit), and then reading the value of + * the "DO" bit. During this "shifting in" process the "DI" bit should + * always be clear. + */ + + eecd = er32(EECD); + + eecd &= ~(E1000_EECD_DO | E1000_EECD_DI); + data = 0; + + for (i = 0; i < count; i++) { + data = data << 1; + e1000_raise_ee_clk(hw, &eecd); + + eecd = er32(EECD); + + eecd &= ~(E1000_EECD_DI); + if (eecd & E1000_EECD_DO) + data |= 1; + + e1000_lower_ee_clk(hw, &eecd); + } + + return data; +} + +/** + * e1000_acquire_eeprom - Prepares EEPROM for access + * @hw: Struct containing variables accessed by shared code + * + * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This + * function should be called before issuing a command to the EEPROM. + */ +static s32 e1000_acquire_eeprom(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd, i = 0; + + DEBUGFUNC("e1000_acquire_eeprom"); + + eecd = er32(EECD); + + /* Request EEPROM Access */ + if (hw->mac_type > e1000_82544) { + eecd |= E1000_EECD_REQ; + ew32(EECD, eecd); + eecd = er32(EECD); + while ((!(eecd & E1000_EECD_GNT)) && + (i < E1000_EEPROM_GRANT_ATTEMPTS)) { + i++; + udelay(5); + eecd = er32(EECD); + } + if (!(eecd & E1000_EECD_GNT)) { + eecd &= ~E1000_EECD_REQ; + ew32(EECD, eecd); + DEBUGOUT("Could not acquire EEPROM grant\n"); + return -E1000_ERR_EEPROM; + } + } + + /* Setup EEPROM for Read/Write */ + + if (eeprom->type == e1000_eeprom_microwire) { + /* Clear SK and DI */ + eecd &= ~(E1000_EECD_DI | E1000_EECD_SK); + ew32(EECD, eecd); + + /* Set CS */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + } else if (eeprom->type == e1000_eeprom_spi) { + /* Clear SK and CS */ + eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); + ew32(EECD, eecd); + udelay(1); + } + + return E1000_SUCCESS; +} + +/** + * e1000_standby_eeprom - Returns EEPROM to a "standby" state + * @hw: Struct containing variables accessed by shared code + */ +static void e1000_standby_eeprom(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + + eecd = er32(EECD); + + if (eeprom->type == e1000_eeprom_microwire) { + eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Clock high */ + eecd |= E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Select EEPROM */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Clock low */ + eecd &= ~E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + } else if (eeprom->type == e1000_eeprom_spi) { + /* Toggle CS to flush commands */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + eecd &= ~E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + } +} + +/** + * e1000_release_eeprom - drop chip select + * @hw: Struct containing variables accessed by shared code + * + * Terminates a command by inverting the EEPROM's chip select pin + */ +static void e1000_release_eeprom(struct e1000_hw *hw) +{ + u32 eecd; + + DEBUGFUNC("e1000_release_eeprom"); + + eecd = er32(EECD); + + if (hw->eeprom.type == e1000_eeprom_spi) { + eecd |= E1000_EECD_CS; /* Pull CS high */ + eecd &= ~E1000_EECD_SK; /* Lower SCK */ + + ew32(EECD, eecd); + + udelay(hw->eeprom.delay_usec); + } else if (hw->eeprom.type == e1000_eeprom_microwire) { + /* cleanup eeprom */ + + /* CS on Microwire is active-high */ + eecd &= ~(E1000_EECD_CS | E1000_EECD_DI); + + ew32(EECD, eecd); + + /* Rising edge of clock */ + eecd |= E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); + + /* Falling edge of clock */ + eecd &= ~E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); + } + + /* Stop requesting EEPROM access */ + if (hw->mac_type > e1000_82544) { + eecd &= ~E1000_EECD_REQ; + ew32(EECD, eecd); + } +} + +/** + * e1000_spi_eeprom_ready - Reads a 16 bit word from the EEPROM. + * @hw: Struct containing variables accessed by shared code + */ +static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw) +{ + u16 retry_count = 0; + u8 spi_stat_reg; + + DEBUGFUNC("e1000_spi_eeprom_ready"); + + /* Read "Status Register" repeatedly until the LSB is cleared. The + * EEPROM will signal that the command has been completed by clearing + * bit 0 of the internal status register. If it's not cleared within + * 5 milliseconds, then error out. + */ + retry_count = 0; + do { + e1000_shift_out_ee_bits(hw, EEPROM_RDSR_OPCODE_SPI, + hw->eeprom.opcode_bits); + spi_stat_reg = (u8) e1000_shift_in_ee_bits(hw, 8); + if (!(spi_stat_reg & EEPROM_STATUS_RDY_SPI)) + break; + + udelay(5); + retry_count += 5; + + e1000_standby_eeprom(hw); + } while (retry_count < EEPROM_MAX_RETRY_SPI); + + /* ATMEL SPI write time could vary from 0-20mSec on 3.3V devices (and + * only 0-5mSec on 5V devices) + */ + if (retry_count >= EEPROM_MAX_RETRY_SPI) { + DEBUGOUT("SPI EEPROM Status error\n"); + return -E1000_ERR_EEPROM; + } + + return E1000_SUCCESS; +} + +/** + * e1000_read_eeprom - Reads a 16 bit word from the EEPROM. + * @hw: Struct containing variables accessed by shared code + * @offset: offset of word in the EEPROM to read + * @data: word read from the EEPROM + * @words: number of words to read + */ +s32 e1000_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + s32 ret; + spin_lock(&e1000_eeprom_lock); + ret = e1000_do_read_eeprom(hw, offset, words, data); + spin_unlock(&e1000_eeprom_lock); + return ret; +} + +static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 i = 0; + + DEBUGFUNC("e1000_read_eeprom"); + + /* If eeprom is not yet detected, do so now */ + if (eeprom->word_size == 0) + e1000_init_eeprom_params(hw); + + /* A check for invalid values: offset too large, too many words, and not + * enough words. + */ + if ((offset >= eeprom->word_size) + || (words > eeprom->word_size - offset) || (words == 0)) { + DEBUGOUT2 + ("\"words\" parameter out of bounds. Words = %d, size = %d\n", + offset, eeprom->word_size); + return -E1000_ERR_EEPROM; + } + + /* EEPROM's that don't use EERD to read require us to bit-bang the SPI + * directly. In this case, we need to acquire the EEPROM so that + * FW or other port software does not interrupt. + */ + /* Prepare the EEPROM for bit-bang reading */ + if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + + /* Set up the SPI or Microwire EEPROM for bit-bang reading. We have + * acquired the EEPROM at this point, so any returns should release it */ + if (eeprom->type == e1000_eeprom_spi) { + u16 word_in; + u8 read_opcode = EEPROM_READ_OPCODE_SPI; + + if (e1000_spi_eeprom_ready(hw)) { + e1000_release_eeprom(hw); + return -E1000_ERR_EEPROM; + } + + e1000_standby_eeprom(hw); + + /* Some SPI eeproms use the 8th address bit embedded in the opcode */ + if ((eeprom->address_bits == 8) && (offset >= 128)) + read_opcode |= EEPROM_A8_OPCODE_SPI; + + /* Send the READ command (opcode + addr) */ + e1000_shift_out_ee_bits(hw, read_opcode, eeprom->opcode_bits); + e1000_shift_out_ee_bits(hw, (u16) (offset * 2), + eeprom->address_bits); + + /* Read the data. The address of the eeprom internally increments with + * each byte (spi) being read, saving on the overhead of eeprom setup + * and tear-down. The address counter will roll over if reading beyond + * the size of the eeprom, thus allowing the entire memory to be read + * starting from any offset. */ + for (i = 0; i < words; i++) { + word_in = e1000_shift_in_ee_bits(hw, 16); + data[i] = (word_in >> 8) | (word_in << 8); + } + } else if (eeprom->type == e1000_eeprom_microwire) { + for (i = 0; i < words; i++) { + /* Send the READ command (opcode + addr) */ + e1000_shift_out_ee_bits(hw, + EEPROM_READ_OPCODE_MICROWIRE, + eeprom->opcode_bits); + e1000_shift_out_ee_bits(hw, (u16) (offset + i), + eeprom->address_bits); + + /* Read the data. For microwire, each word requires the overhead + * of eeprom setup and tear-down. */ + data[i] = e1000_shift_in_ee_bits(hw, 16); + e1000_standby_eeprom(hw); + } + } + + /* End this read operation */ + e1000_release_eeprom(hw); + + return E1000_SUCCESS; +} + +/** + * e1000_validate_eeprom_checksum - Verifies that the EEPROM has a valid checksum + * @hw: Struct containing variables accessed by shared code + * + * Reads the first 64 16 bit words of the EEPROM and sums the values read. + * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is + * valid. + */ +s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw) +{ + u16 checksum = 0; + u16 i, eeprom_data; + + DEBUGFUNC("e1000_validate_eeprom_checksum"); + + for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { + if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + checksum += eeprom_data; + } + + if (checksum == (u16) EEPROM_SUM) + return E1000_SUCCESS; + else { + DEBUGOUT("EEPROM Checksum Invalid\n"); + return -E1000_ERR_EEPROM; + } +} + +/** + * e1000_update_eeprom_checksum - Calculates/writes the EEPROM checksum + * @hw: Struct containing variables accessed by shared code + * + * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA. + * Writes the difference to word offset 63 of the EEPROM. + */ +s32 e1000_update_eeprom_checksum(struct e1000_hw *hw) +{ + u16 checksum = 0; + u16 i, eeprom_data; + + DEBUGFUNC("e1000_update_eeprom_checksum"); + + for (i = 0; i < EEPROM_CHECKSUM_REG; i++) { + if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + checksum += eeprom_data; + } + checksum = (u16) EEPROM_SUM - checksum; + if (e1000_write_eeprom(hw, EEPROM_CHECKSUM_REG, 1, &checksum) < 0) { + DEBUGOUT("EEPROM Write Error\n"); + return -E1000_ERR_EEPROM; + } + return E1000_SUCCESS; +} + +/** + * e1000_write_eeprom - write words to the different EEPROM types. + * @hw: Struct containing variables accessed by shared code + * @offset: offset within the EEPROM to be written to + * @words: number of words to write + * @data: 16 bit word to be written to the EEPROM + * + * If e1000_update_eeprom_checksum is not called after this function, the + * EEPROM will most likely contain an invalid checksum. + */ +s32 e1000_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + s32 ret; + spin_lock(&e1000_eeprom_lock); + ret = e1000_do_write_eeprom(hw, offset, words, data); + spin_unlock(&e1000_eeprom_lock); + return ret; +} + +static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + s32 status = 0; + + DEBUGFUNC("e1000_write_eeprom"); + + /* If eeprom is not yet detected, do so now */ + if (eeprom->word_size == 0) + e1000_init_eeprom_params(hw); + + /* A check for invalid values: offset too large, too many words, and not + * enough words. + */ + if ((offset >= eeprom->word_size) + || (words > eeprom->word_size - offset) || (words == 0)) { + DEBUGOUT("\"words\" parameter out of bounds\n"); + return -E1000_ERR_EEPROM; + } + + /* Prepare the EEPROM for writing */ + if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + + if (eeprom->type == e1000_eeprom_microwire) { + status = e1000_write_eeprom_microwire(hw, offset, words, data); + } else { + status = e1000_write_eeprom_spi(hw, offset, words, data); + msleep(10); + } + + /* Done with writing */ + e1000_release_eeprom(hw); + + return status; +} + +/** + * e1000_write_eeprom_spi - Writes a 16 bit word to a given offset in an SPI EEPROM. + * @hw: Struct containing variables accessed by shared code + * @offset: offset within the EEPROM to be written to + * @words: number of words to write + * @data: pointer to array of 8 bit words to be written to the EEPROM + */ +static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u16 widx = 0; + + DEBUGFUNC("e1000_write_eeprom_spi"); + + while (widx < words) { + u8 write_opcode = EEPROM_WRITE_OPCODE_SPI; + + if (e1000_spi_eeprom_ready(hw)) + return -E1000_ERR_EEPROM; + + e1000_standby_eeprom(hw); + + /* Send the WRITE ENABLE command (8 bit opcode ) */ + e1000_shift_out_ee_bits(hw, EEPROM_WREN_OPCODE_SPI, + eeprom->opcode_bits); + + e1000_standby_eeprom(hw); + + /* Some SPI eeproms use the 8th address bit embedded in the opcode */ + if ((eeprom->address_bits == 8) && (offset >= 128)) + write_opcode |= EEPROM_A8_OPCODE_SPI; + + /* Send the Write command (8-bit opcode + addr) */ + e1000_shift_out_ee_bits(hw, write_opcode, eeprom->opcode_bits); + + e1000_shift_out_ee_bits(hw, (u16) ((offset + widx) * 2), + eeprom->address_bits); + + /* Send the data */ + + /* Loop to allow for up to whole page write (32 bytes) of eeprom */ + while (widx < words) { + u16 word_out = data[widx]; + word_out = (word_out >> 8) | (word_out << 8); + e1000_shift_out_ee_bits(hw, word_out, 16); + widx++; + + /* Some larger eeprom sizes are capable of a 32-byte PAGE WRITE + * operation, while the smaller eeproms are capable of an 8-byte + * PAGE WRITE operation. Break the inner loop to pass new address + */ + if ((((offset + widx) * 2) % eeprom->page_size) == 0) { + e1000_standby_eeprom(hw); + break; + } + } + } + + return E1000_SUCCESS; +} + +/** + * e1000_write_eeprom_microwire - Writes a 16 bit word to a given offset in a Microwire EEPROM. + * @hw: Struct containing variables accessed by shared code + * @offset: offset within the EEPROM to be written to + * @words: number of words to write + * @data: pointer to array of 8 bit words to be written to the EEPROM + */ +static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + u16 words_written = 0; + u16 i = 0; + + DEBUGFUNC("e1000_write_eeprom_microwire"); + + /* Send the write enable command to the EEPROM (3-bit opcode plus + * 6/8-bit dummy address beginning with 11). It's less work to include + * the 11 of the dummy address as part of the opcode than it is to shift + * it over the correct number of bits for the address. This puts the + * EEPROM into write/erase mode. + */ + e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE_MICROWIRE, + (u16) (eeprom->opcode_bits + 2)); + + e1000_shift_out_ee_bits(hw, 0, (u16) (eeprom->address_bits - 2)); + + /* Prepare the EEPROM */ + e1000_standby_eeprom(hw); + + while (words_written < words) { + /* Send the Write command (3-bit opcode + addr) */ + e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE_MICROWIRE, + eeprom->opcode_bits); + + e1000_shift_out_ee_bits(hw, (u16) (offset + words_written), + eeprom->address_bits); + + /* Send the data */ + e1000_shift_out_ee_bits(hw, data[words_written], 16); + + /* Toggle the CS line. This in effect tells the EEPROM to execute + * the previous command. + */ + e1000_standby_eeprom(hw); + + /* Read DO repeatedly until it is high (equal to '1'). The EEPROM will + * signal that the command has been completed by raising the DO signal. + * If DO does not go high in 10 milliseconds, then error out. + */ + for (i = 0; i < 200; i++) { + eecd = er32(EECD); + if (eecd & E1000_EECD_DO) + break; + udelay(50); + } + if (i == 200) { + DEBUGOUT("EEPROM Write did not complete\n"); + return -E1000_ERR_EEPROM; + } + + /* Recover from write */ + e1000_standby_eeprom(hw); + + words_written++; + } + + /* Send the write disable command to the EEPROM (3-bit opcode plus + * 6/8-bit dummy address beginning with 10). It's less work to include + * the 10 of the dummy address as part of the opcode than it is to shift + * it over the correct number of bits for the address. This takes the + * EEPROM out of write/erase mode. + */ + e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE_MICROWIRE, + (u16) (eeprom->opcode_bits + 2)); + + e1000_shift_out_ee_bits(hw, 0, (u16) (eeprom->address_bits - 2)); + + return E1000_SUCCESS; +} + +/** + * e1000_read_mac_addr - read the adapters MAC from eeprom + * @hw: Struct containing variables accessed by shared code + * + * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the + * second function of dual function devices + */ +s32 e1000_read_mac_addr(struct e1000_hw *hw) +{ + u16 offset; + u16 eeprom_data, i; + + DEBUGFUNC("e1000_read_mac_addr"); + + for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) { + offset = i >> 1; + if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + hw->perm_mac_addr[i] = (u8) (eeprom_data & 0x00FF); + hw->perm_mac_addr[i + 1] = (u8) (eeprom_data >> 8); + } + + switch (hw->mac_type) { + default: + break; + case e1000_82546: + case e1000_82546_rev_3: + if (er32(STATUS) & E1000_STATUS_FUNC_1) + hw->perm_mac_addr[5] ^= 0x01; + break; + } + + for (i = 0; i < NODE_ADDRESS_SIZE; i++) + hw->mac_addr[i] = hw->perm_mac_addr[i]; + return E1000_SUCCESS; +} + +/** + * e1000_init_rx_addrs - Initializes receive address filters. + * @hw: Struct containing variables accessed by shared code + * + * Places the MAC address in receive address register 0 and clears the rest + * of the receive address registers. Clears the multicast table. Assumes + * the receiver is in reset when the routine is called. + */ +static void e1000_init_rx_addrs(struct e1000_hw *hw) +{ + u32 i; + u32 rar_num; + + DEBUGFUNC("e1000_init_rx_addrs"); + + /* Setup the receive address. */ + DEBUGOUT("Programming MAC Address into RAR[0]\n"); + + e1000_rar_set(hw, hw->mac_addr, 0); + + rar_num = E1000_RAR_ENTRIES; + + /* Zero out the other 15 receive addresses. */ + DEBUGOUT("Clearing RAR[1-15]\n"); + for (i = 1; i < rar_num; i++) { + E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0); + E1000_WRITE_FLUSH(); + } +} + +/** + * e1000_hash_mc_addr - Hashes an address to determine its location in the multicast table + * @hw: Struct containing variables accessed by shared code + * @mc_addr: the multicast address to hash + */ +u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr) +{ + u32 hash_value = 0; + + /* The portion of the address that is used for the hash table is + * determined by the mc_filter_type setting. + */ + switch (hw->mc_filter_type) { + /* [0] [1] [2] [3] [4] [5] + * 01 AA 00 12 34 56 + * LSB MSB + */ + case 0: + /* [47:36] i.e. 0x563 for above example address */ + hash_value = ((mc_addr[4] >> 4) | (((u16) mc_addr[5]) << 4)); + break; + case 1: + /* [46:35] i.e. 0xAC6 for above example address */ + hash_value = ((mc_addr[4] >> 3) | (((u16) mc_addr[5]) << 5)); + break; + case 2: + /* [45:34] i.e. 0x5D8 for above example address */ + hash_value = ((mc_addr[4] >> 2) | (((u16) mc_addr[5]) << 6)); + break; + case 3: + /* [43:32] i.e. 0x634 for above example address */ + hash_value = ((mc_addr[4]) | (((u16) mc_addr[5]) << 8)); + break; + } + + hash_value &= 0xFFF; + return hash_value; +} + +/** + * e1000_rar_set - Puts an ethernet address into a receive address register. + * @hw: Struct containing variables accessed by shared code + * @addr: Address to put into receive address register + * @index: Receive address register to write + */ +void e1000_rar_set(struct e1000_hw *hw, u8 *addr, u32 index) +{ + u32 rar_low, rar_high; + + /* HW expects these in little endian so we reverse the byte order + * from network order (big endian) to little endian + */ + rar_low = ((u32) addr[0] | ((u32) addr[1] << 8) | + ((u32) addr[2] << 16) | ((u32) addr[3] << 24)); + rar_high = ((u32) addr[4] | ((u32) addr[5] << 8)); + + /* Disable Rx and flush all Rx frames before enabling RSS to avoid Rx + * unit hang. + * + * Description: + * If there are any Rx frames queued up or otherwise present in the HW + * before RSS is enabled, and then we enable RSS, the HW Rx unit will + * hang. To work around this issue, we have to disable receives and + * flush out all Rx frames before we enable RSS. To do so, we modify we + * redirect all Rx traffic to manageability and then reset the HW. + * This flushes away Rx frames, and (since the redirections to + * manageability persists across resets) keeps new ones from coming in + * while we work. Then, we clear the Address Valid AV bit for all MAC + * addresses and undo the re-direction to manageability. + * Now, frames are coming in again, but the MAC won't accept them, so + * far so good. We now proceed to initialize RSS (if necessary) and + * configure the Rx unit. Last, we re-enable the AV bits and continue + * on our merry way. + */ + switch (hw->mac_type) { + default: + /* Indicate to hardware the Address is Valid. */ + rar_high |= E1000_RAH_AV; + break; + } + + E1000_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high); + E1000_WRITE_FLUSH(); +} + +/** + * e1000_write_vfta - Writes a value to the specified offset in the VLAN filter table. + * @hw: Struct containing variables accessed by shared code + * @offset: Offset in VLAN filer table to write + * @value: Value to write into VLAN filter table + */ +void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value) +{ + u32 temp; + + if ((hw->mac_type == e1000_82544) && ((offset & 0x1) == 1)) { + temp = E1000_READ_REG_ARRAY(hw, VFTA, (offset - 1)); + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, VFTA, (offset - 1), temp); + E1000_WRITE_FLUSH(); + } else { + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); + E1000_WRITE_FLUSH(); + } +} + +/** + * e1000_clear_vfta - Clears the VLAN filer table + * @hw: Struct containing variables accessed by shared code + */ +static void e1000_clear_vfta(struct e1000_hw *hw) +{ + u32 offset; + u32 vfta_value = 0; + u32 vfta_offset = 0; + u32 vfta_bit_in_reg = 0; + + for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { + /* If the offset we want to clear is the same offset of the + * manageability VLAN ID, then clear all bits except that of the + * manageability unit */ + vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0; + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, vfta_value); + E1000_WRITE_FLUSH(); + } +} + +static s32 e1000_id_led_init(struct e1000_hw *hw) +{ + u32 ledctl; + const u32 ledctl_mask = 0x000000FF; + const u32 ledctl_on = E1000_LEDCTL_MODE_LED_ON; + const u32 ledctl_off = E1000_LEDCTL_MODE_LED_OFF; + u16 eeprom_data, i, temp; + const u16 led_mask = 0x0F; + + DEBUGFUNC("e1000_id_led_init"); + + if (hw->mac_type < e1000_82540) { + /* Nothing to do */ + return E1000_SUCCESS; + } + + ledctl = er32(LEDCTL); + hw->ledctl_default = ledctl; + hw->ledctl_mode1 = hw->ledctl_default; + hw->ledctl_mode2 = hw->ledctl_default; + + if (e1000_read_eeprom(hw, EEPROM_ID_LED_SETTINGS, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + + if ((eeprom_data == ID_LED_RESERVED_0000) || + (eeprom_data == ID_LED_RESERVED_FFFF)) { + eeprom_data = ID_LED_DEFAULT; + } + + for (i = 0; i < 4; i++) { + temp = (eeprom_data >> (i << 2)) & led_mask; + switch (temp) { + case ID_LED_ON1_DEF2: + case ID_LED_ON1_ON2: + case ID_LED_ON1_OFF2: + hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode1 |= ledctl_on << (i << 3); + break; + case ID_LED_OFF1_DEF2: + case ID_LED_OFF1_ON2: + case ID_LED_OFF1_OFF2: + hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode1 |= ledctl_off << (i << 3); + break; + default: + /* Do nothing */ + break; + } + switch (temp) { + case ID_LED_DEF1_ON2: + case ID_LED_ON1_ON2: + case ID_LED_OFF1_ON2: + hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode2 |= ledctl_on << (i << 3); + break; + case ID_LED_DEF1_OFF2: + case ID_LED_ON1_OFF2: + case ID_LED_OFF1_OFF2: + hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode2 |= ledctl_off << (i << 3); + break; + default: + /* Do nothing */ + break; + } + } + return E1000_SUCCESS; +} + +/** + * e1000_setup_led + * @hw: Struct containing variables accessed by shared code + * + * Prepares SW controlable LED for use and saves the current state of the LED. + */ +s32 e1000_setup_led(struct e1000_hw *hw) +{ + u32 ledctl; + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_setup_led"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* No setup necessary */ + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + /* Turn off PHY Smart Power Down (if enabled) */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, + &hw->phy_spd_default); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + (u16) (hw->phy_spd_default & + ~IGP01E1000_GMII_SPD)); + if (ret_val) + return ret_val; + /* Fall Through */ + default: + if (hw->media_type == e1000_media_type_fiber) { + ledctl = er32(LEDCTL); + /* Save current LEDCTL settings */ + hw->ledctl_default = ledctl; + /* Turn off LED0 */ + ledctl &= ~(E1000_LEDCTL_LED0_IVRT | + E1000_LEDCTL_LED0_BLINK | + E1000_LEDCTL_LED0_MODE_MASK); + ledctl |= (E1000_LEDCTL_MODE_LED_OFF << + E1000_LEDCTL_LED0_MODE_SHIFT); + ew32(LEDCTL, ledctl); + } else if (hw->media_type == e1000_media_type_copper) + ew32(LEDCTL, hw->ledctl_mode1); + break; + } + + return E1000_SUCCESS; +} + +/** + * e1000_cleanup_led - Restores the saved state of the SW controlable LED. + * @hw: Struct containing variables accessed by shared code + */ +s32 e1000_cleanup_led(struct e1000_hw *hw) +{ + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_cleanup_led"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* No cleanup necessary */ + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + /* Turn on PHY Smart Power Down (if previously enabled) */ + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + hw->phy_spd_default); + if (ret_val) + return ret_val; + /* Fall Through */ + default: + /* Restore LEDCTL settings */ + ew32(LEDCTL, hw->ledctl_default); + break; + } + + return E1000_SUCCESS; +} + +/** + * e1000_led_on - Turns on the software controllable LED + * @hw: Struct containing variables accessed by shared code + */ +s32 e1000_led_on(struct e1000_hw *hw) +{ + u32 ctrl = er32(CTRL); + + DEBUGFUNC("e1000_led_on"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + /* Set SW Defineable Pin 0 to turn on the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + break; + case e1000_82544: + if (hw->media_type == e1000_media_type_fiber) { + /* Set SW Defineable Pin 0 to turn on the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else { + /* Clear SW Defineable Pin 0 to turn on the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } + break; + default: + if (hw->media_type == e1000_media_type_fiber) { + /* Clear SW Defineable Pin 0 to turn on the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else if (hw->media_type == e1000_media_type_copper) { + ew32(LEDCTL, hw->ledctl_mode2); + return E1000_SUCCESS; + } + break; + } + + ew32(CTRL, ctrl); + + return E1000_SUCCESS; +} + +/** + * e1000_led_off - Turns off the software controllable LED + * @hw: Struct containing variables accessed by shared code + */ +s32 e1000_led_off(struct e1000_hw *hw) +{ + u32 ctrl = er32(CTRL); + + DEBUGFUNC("e1000_led_off"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + /* Clear SW Defineable Pin 0 to turn off the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + break; + case e1000_82544: + if (hw->media_type == e1000_media_type_fiber) { + /* Clear SW Defineable Pin 0 to turn off the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else { + /* Set SW Defineable Pin 0 to turn off the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } + break; + default: + if (hw->media_type == e1000_media_type_fiber) { + /* Set SW Defineable Pin 0 to turn off the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else if (hw->media_type == e1000_media_type_copper) { + ew32(LEDCTL, hw->ledctl_mode1); + return E1000_SUCCESS; + } + break; + } + + ew32(CTRL, ctrl); + + return E1000_SUCCESS; +} + +/** + * e1000_clear_hw_cntrs - Clears all hardware statistics counters. + * @hw: Struct containing variables accessed by shared code + */ +static void e1000_clear_hw_cntrs(struct e1000_hw *hw) +{ + volatile u32 temp; + + temp = er32(CRCERRS); + temp = er32(SYMERRS); + temp = er32(MPC); + temp = er32(SCC); + temp = er32(ECOL); + temp = er32(MCC); + temp = er32(LATECOL); + temp = er32(COLC); + temp = er32(DC); + temp = er32(SEC); + temp = er32(RLEC); + temp = er32(XONRXC); + temp = er32(XONTXC); + temp = er32(XOFFRXC); + temp = er32(XOFFTXC); + temp = er32(FCRUC); + + temp = er32(PRC64); + temp = er32(PRC127); + temp = er32(PRC255); + temp = er32(PRC511); + temp = er32(PRC1023); + temp = er32(PRC1522); + + temp = er32(GPRC); + temp = er32(BPRC); + temp = er32(MPRC); + temp = er32(GPTC); + temp = er32(GORCL); + temp = er32(GORCH); + temp = er32(GOTCL); + temp = er32(GOTCH); + temp = er32(RNBC); + temp = er32(RUC); + temp = er32(RFC); + temp = er32(ROC); + temp = er32(RJC); + temp = er32(TORL); + temp = er32(TORH); + temp = er32(TOTL); + temp = er32(TOTH); + temp = er32(TPR); + temp = er32(TPT); + + temp = er32(PTC64); + temp = er32(PTC127); + temp = er32(PTC255); + temp = er32(PTC511); + temp = er32(PTC1023); + temp = er32(PTC1522); + + temp = er32(MPTC); + temp = er32(BPTC); + + if (hw->mac_type < e1000_82543) + return; + + temp = er32(ALGNERRC); + temp = er32(RXERRC); + temp = er32(TNCRS); + temp = er32(CEXTERR); + temp = er32(TSCTC); + temp = er32(TSCTFC); + + if (hw->mac_type <= e1000_82544) + return; + + temp = er32(MGTPRC); + temp = er32(MGTPDC); + temp = er32(MGTPTC); +} + +/** + * e1000_reset_adaptive - Resets Adaptive IFS to its default state. + * @hw: Struct containing variables accessed by shared code + * + * Call this after e1000_init_hw. You may override the IFS defaults by setting + * hw->ifs_params_forced to true. However, you must initialize hw-> + * current_ifs_val, ifs_min_val, ifs_max_val, ifs_step_size, and ifs_ratio + * before calling this function. + */ +void e1000_reset_adaptive(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_reset_adaptive"); + + if (hw->adaptive_ifs) { + if (!hw->ifs_params_forced) { + hw->current_ifs_val = 0; + hw->ifs_min_val = IFS_MIN; + hw->ifs_max_val = IFS_MAX; + hw->ifs_step_size = IFS_STEP; + hw->ifs_ratio = IFS_RATIO; + } + hw->in_ifs_mode = false; + ew32(AIT, 0); + } else { + DEBUGOUT("Not in Adaptive IFS mode!\n"); + } +} + +/** + * e1000_update_adaptive - update adaptive IFS + * @hw: Struct containing variables accessed by shared code + * @tx_packets: Number of transmits since last callback + * @total_collisions: Number of collisions since last callback + * + * Called during the callback/watchdog routine to update IFS value based on + * the ratio of transmits to collisions. + */ +void e1000_update_adaptive(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_update_adaptive"); + + if (hw->adaptive_ifs) { + if ((hw->collision_delta *hw->ifs_ratio) > hw->tx_packet_delta) { + if (hw->tx_packet_delta > MIN_NUM_XMITS) { + hw->in_ifs_mode = true; + if (hw->current_ifs_val < hw->ifs_max_val) { + if (hw->current_ifs_val == 0) + hw->current_ifs_val = + hw->ifs_min_val; + else + hw->current_ifs_val += + hw->ifs_step_size; + ew32(AIT, hw->current_ifs_val); + } + } + } else { + if (hw->in_ifs_mode + && (hw->tx_packet_delta <= MIN_NUM_XMITS)) { + hw->current_ifs_val = 0; + hw->in_ifs_mode = false; + ew32(AIT, 0); + } + } + } else { + DEBUGOUT("Not in Adaptive IFS mode!\n"); + } +} + +/** + * e1000_tbi_adjust_stats + * @hw: Struct containing variables accessed by shared code + * @frame_len: The length of the frame in question + * @mac_addr: The Ethernet destination address of the frame in question + * + * Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT + */ +void e1000_tbi_adjust_stats(struct e1000_hw *hw, struct e1000_hw_stats *stats, + u32 frame_len, u8 *mac_addr) +{ + u64 carry_bit; + + /* First adjust the frame length. */ + frame_len--; + /* We need to adjust the statistics counters, since the hardware + * counters overcount this packet as a CRC error and undercount + * the packet as a good packet + */ + /* This packet should not be counted as a CRC error. */ + stats->crcerrs--; + /* This packet does count as a Good Packet Received. */ + stats->gprc++; + + /* Adjust the Good Octets received counters */ + carry_bit = 0x80000000 & stats->gorcl; + stats->gorcl += frame_len; + /* If the high bit of Gorcl (the low 32 bits of the Good Octets + * Received Count) was one before the addition, + * AND it is zero after, then we lost the carry out, + * need to add one to Gorch (Good Octets Received Count High). + * This could be simplified if all environments supported + * 64-bit integers. + */ + if (carry_bit && ((stats->gorcl & 0x80000000) == 0)) + stats->gorch++; + /* Is this a broadcast or multicast? Check broadcast first, + * since the test for a multicast frame will test positive on + * a broadcast frame. + */ + if ((mac_addr[0] == (u8) 0xff) && (mac_addr[1] == (u8) 0xff)) + /* Broadcast packet */ + stats->bprc++; + else if (*mac_addr & 0x01) + /* Multicast packet */ + stats->mprc++; + + if (frame_len == hw->max_frame_size) { + /* In this case, the hardware has overcounted the number of + * oversize frames. + */ + if (stats->roc > 0) + stats->roc--; + } + + /* Adjust the bin counters when the extra byte put the frame in the + * wrong bin. Remember that the frame_len was adjusted above. + */ + if (frame_len == 64) { + stats->prc64++; + stats->prc127--; + } else if (frame_len == 127) { + stats->prc127++; + stats->prc255--; + } else if (frame_len == 255) { + stats->prc255++; + stats->prc511--; + } else if (frame_len == 511) { + stats->prc511++; + stats->prc1023--; + } else if (frame_len == 1023) { + stats->prc1023++; + stats->prc1522--; + } else if (frame_len == 1522) { + stats->prc1522++; + } +} + +/** + * e1000_get_bus_info + * @hw: Struct containing variables accessed by shared code + * + * Gets the current PCI bus type, speed, and width of the hardware + */ +void e1000_get_bus_info(struct e1000_hw *hw) +{ + u32 status; + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + hw->bus_type = e1000_bus_type_pci; + hw->bus_speed = e1000_bus_speed_unknown; + hw->bus_width = e1000_bus_width_unknown; + break; + default: + status = er32(STATUS); + hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ? + e1000_bus_type_pcix : e1000_bus_type_pci; + + if (hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) { + hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ? + e1000_bus_speed_66 : e1000_bus_speed_120; + } else if (hw->bus_type == e1000_bus_type_pci) { + hw->bus_speed = (status & E1000_STATUS_PCI66) ? + e1000_bus_speed_66 : e1000_bus_speed_33; + } else { + switch (status & E1000_STATUS_PCIX_SPEED) { + case E1000_STATUS_PCIX_SPEED_66: + hw->bus_speed = e1000_bus_speed_66; + break; + case E1000_STATUS_PCIX_SPEED_100: + hw->bus_speed = e1000_bus_speed_100; + break; + case E1000_STATUS_PCIX_SPEED_133: + hw->bus_speed = e1000_bus_speed_133; + break; + default: + hw->bus_speed = e1000_bus_speed_reserved; + break; + } + } + hw->bus_width = (status & E1000_STATUS_BUS64) ? + e1000_bus_width_64 : e1000_bus_width_32; + break; + } +} + +/** + * e1000_write_reg_io + * @hw: Struct containing variables accessed by shared code + * @offset: offset to write to + * @value: value to write + * + * Writes a value to one of the devices registers using port I/O (as opposed to + * memory mapped I/O). Only 82544 and newer devices support port I/O. + */ +static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value) +{ + unsigned long io_addr = hw->io_base; + unsigned long io_data = hw->io_base + 4; + + e1000_io_write(hw, io_addr, offset); + e1000_io_write(hw, io_data, value); +} + +/** + * e1000_get_cable_length - Estimates the cable length. + * @hw: Struct containing variables accessed by shared code + * @min_length: The estimated minimum length + * @max_length: The estimated maximum length + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * This function always returns a ranged length (minimum & maximum). + * So for M88 phy's, this function interprets the one value returned from the + * register to the minimum and maximum range. + * For IGP phy's, the function calculates the range by the AGC registers. + */ +static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, + u16 *max_length) +{ + s32 ret_val; + u16 agc_value = 0; + u16 i, phy_data; + u16 cable_length; + + DEBUGFUNC("e1000_get_cable_length"); + + *min_length = *max_length = 0; + + /* Use old method for Phy older than IGP */ + if (hw->phy_type == e1000_phy_m88) { + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + cable_length = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >> + M88E1000_PSSR_CABLE_LENGTH_SHIFT; + + /* Convert the enum value to ranged values */ + switch (cable_length) { + case e1000_cable_length_50: + *min_length = 0; + *max_length = e1000_igp_cable_length_50; + break; + case e1000_cable_length_50_80: + *min_length = e1000_igp_cable_length_50; + *max_length = e1000_igp_cable_length_80; + break; + case e1000_cable_length_80_110: + *min_length = e1000_igp_cable_length_80; + *max_length = e1000_igp_cable_length_110; + break; + case e1000_cable_length_110_140: + *min_length = e1000_igp_cable_length_110; + *max_length = e1000_igp_cable_length_140; + break; + case e1000_cable_length_140: + *min_length = e1000_igp_cable_length_140; + *max_length = e1000_igp_cable_length_170; + break; + default: + return -E1000_ERR_PHY; + break; + } + } else if (hw->phy_type == e1000_phy_igp) { /* For IGP PHY */ + u16 cur_agc_value; + u16 min_agc_value = IGP01E1000_AGC_LENGTH_TABLE_SIZE; + u16 agc_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = + { IGP01E1000_PHY_AGC_A, + IGP01E1000_PHY_AGC_B, + IGP01E1000_PHY_AGC_C, + IGP01E1000_PHY_AGC_D + }; + /* Read the AGC registers for all channels */ + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + + ret_val = + e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); + if (ret_val) + return ret_val; + + cur_agc_value = phy_data >> IGP01E1000_AGC_LENGTH_SHIFT; + + /* Value bound check. */ + if ((cur_agc_value >= + IGP01E1000_AGC_LENGTH_TABLE_SIZE - 1) + || (cur_agc_value == 0)) + return -E1000_ERR_PHY; + + agc_value += cur_agc_value; + + /* Update minimal AGC value. */ + if (min_agc_value > cur_agc_value) + min_agc_value = cur_agc_value; + } + + /* Remove the minimal AGC result for length < 50m */ + if (agc_value < + IGP01E1000_PHY_CHANNEL_NUM * e1000_igp_cable_length_50) { + agc_value -= min_agc_value; + + /* Get the average length of the remaining 3 channels */ + agc_value /= (IGP01E1000_PHY_CHANNEL_NUM - 1); + } else { + /* Get the average length of all the 4 channels. */ + agc_value /= IGP01E1000_PHY_CHANNEL_NUM; + } + + /* Set the range of the calculated length. */ + *min_length = ((e1000_igp_cable_length_table[agc_value] - + IGP01E1000_AGC_RANGE) > 0) ? + (e1000_igp_cable_length_table[agc_value] - + IGP01E1000_AGC_RANGE) : 0; + *max_length = e1000_igp_cable_length_table[agc_value] + + IGP01E1000_AGC_RANGE; + } + + return E1000_SUCCESS; +} + +/** + * e1000_check_polarity - Check the cable polarity + * @hw: Struct containing variables accessed by shared code + * @polarity: output parameter : 0 - Polarity is not reversed + * 1 - Polarity is reversed. + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * For phy's older than IGP, this function simply reads the polarity bit in the + * Phy Status register. For IGP phy's, this bit is valid only if link speed is + * 10 Mbps. If the link speed is 100 Mbps there is no polarity so this bit will + * return 0. If the link speed is 1000 Mbps the polarity status is in the + * IGP01E1000_PHY_PCS_INIT_REG. + */ +static s32 e1000_check_polarity(struct e1000_hw *hw, + e1000_rev_polarity *polarity) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_polarity"); + + if (hw->phy_type == e1000_phy_m88) { + /* return the Polarity bit in the Status register. */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + *polarity = ((phy_data & M88E1000_PSSR_REV_POLARITY) >> + M88E1000_PSSR_REV_POLARITY_SHIFT) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + + } else if (hw->phy_type == e1000_phy_igp) { + /* Read the Status register to check the speed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + /* If speed is 1000 Mbps, must read the IGP01E1000_PHY_PCS_INIT_REG to + * find the polarity status */ + if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == + IGP01E1000_PSSR_SPEED_1000MBPS) { + + /* Read the GIG initialization PCS register (0x00B4) */ + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG, + &phy_data); + if (ret_val) + return ret_val; + + /* Check the polarity bits */ + *polarity = (phy_data & IGP01E1000_PHY_POLARITY_MASK) ? + e1000_rev_polarity_reversed : + e1000_rev_polarity_normal; + } else { + /* For 10 Mbps, read the polarity bit in the status register. (for + * 100 Mbps this bit is always 0) */ + *polarity = + (phy_data & IGP01E1000_PSSR_POLARITY_REVERSED) ? + e1000_rev_polarity_reversed : + e1000_rev_polarity_normal; + } + } + return E1000_SUCCESS; +} + +/** + * e1000_check_downshift - Check if Downshift occurred + * @hw: Struct containing variables accessed by shared code + * @downshift: output parameter : 0 - No Downshift occurred. + * 1 - Downshift occurred. + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * For phy's older than IGP, this function reads the Downshift bit in the Phy + * Specific Status register. For IGP phy's, it reads the Downgrade bit in the + * Link Health register. In IGP this bit is latched high, so the driver must + * read it immediately after link is established. + */ +static s32 e1000_check_downshift(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_downshift"); + + if (hw->phy_type == e1000_phy_igp) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH, + &phy_data); + if (ret_val) + return ret_val; + + hw->speed_downgraded = + (phy_data & IGP01E1000_PLHR_SS_DOWNGRADE) ? 1 : 0; + } else if (hw->phy_type == e1000_phy_m88) { + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + hw->speed_downgraded = (phy_data & M88E1000_PSSR_DOWNSHIFT) >> + M88E1000_PSSR_DOWNSHIFT_SHIFT; + } + + return E1000_SUCCESS; +} + +/** + * e1000_config_dsp_after_link_change + * @hw: Struct containing variables accessed by shared code + * @link_up: was link up at the time this was called + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + * + * 82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a + * gigabit link is achieved to improve link quality. + */ + +static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, bool link_up) +{ + s32 ret_val; + u16 phy_data, phy_saved_data, speed, duplex, i; + u16 dsp_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = + { IGP01E1000_PHY_AGC_PARAM_A, + IGP01E1000_PHY_AGC_PARAM_B, + IGP01E1000_PHY_AGC_PARAM_C, + IGP01E1000_PHY_AGC_PARAM_D + }; + u16 min_length, max_length; + + DEBUGFUNC("e1000_config_dsp_after_link_change"); + + if (hw->phy_type != e1000_phy_igp) + return E1000_SUCCESS; + + if (link_up) { + ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT("Error getting link speed and duplex\n"); + return ret_val; + } + + if (speed == SPEED_1000) { + + ret_val = + e1000_get_cable_length(hw, &min_length, + &max_length); + if (ret_val) + return ret_val; + + if ((hw->dsp_config_state == e1000_dsp_config_enabled) + && min_length >= e1000_igp_cable_length_50) { + + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + ret_val = + e1000_read_phy_reg(hw, + dsp_reg_array[i], + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= + ~IGP01E1000_PHY_EDAC_MU_INDEX; + + ret_val = + e1000_write_phy_reg(hw, + dsp_reg_array + [i], phy_data); + if (ret_val) + return ret_val; + } + hw->dsp_config_state = + e1000_dsp_config_activated; + } + + if ((hw->ffe_config_state == e1000_ffe_config_enabled) + && (min_length < e1000_igp_cable_length_50)) { + + u16 ffe_idle_err_timeout = + FFE_IDLE_ERR_COUNT_TIMEOUT_20; + u32 idle_errs = 0; + + /* clear previous idle error counts */ + ret_val = + e1000_read_phy_reg(hw, PHY_1000T_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + for (i = 0; i < ffe_idle_err_timeout; i++) { + udelay(1000); + ret_val = + e1000_read_phy_reg(hw, + PHY_1000T_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + idle_errs += + (phy_data & + SR_1000T_IDLE_ERROR_CNT); + if (idle_errs > + SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT) + { + hw->ffe_config_state = + e1000_ffe_config_active; + + ret_val = + e1000_write_phy_reg(hw, + IGP01E1000_PHY_DSP_FFE, + IGP01E1000_PHY_DSP_FFE_CM_CP); + if (ret_val) + return ret_val; + break; + } + + if (idle_errs) + ffe_idle_err_timeout = + FFE_IDLE_ERR_COUNT_TIMEOUT_100; + } + } + } + } else { + if (hw->dsp_config_state == e1000_dsp_config_activated) { + /* Save off the current value of register 0x2F5B to be restored at + * the end of the routines. */ + ret_val = + e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + if (ret_val) + return ret_val; + + /* Disable the PHY transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + if (ret_val) + return ret_val; + + mdelay(20); + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_FORCE_GIGA); + if (ret_val) + return ret_val; + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + ret_val = + e1000_read_phy_reg(hw, dsp_reg_array[i], + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; + phy_data |= IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS; + + ret_val = + e1000_write_phy_reg(hw, dsp_reg_array[i], + phy_data); + if (ret_val) + return ret_val; + } + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_RESTART_AUTONEG); + if (ret_val) + return ret_val; + + mdelay(20); + + /* Now enable the transmitter */ + ret_val = + e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (ret_val) + return ret_val; + + hw->dsp_config_state = e1000_dsp_config_enabled; + } + + if (hw->ffe_config_state == e1000_ffe_config_active) { + /* Save off the current value of register 0x2F5B to be restored at + * the end of the routines. */ + ret_val = + e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + if (ret_val) + return ret_val; + + /* Disable the PHY transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + if (ret_val) + return ret_val; + + mdelay(20); + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_FORCE_GIGA); + if (ret_val) + return ret_val; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_DSP_FFE, + IGP01E1000_PHY_DSP_FFE_DEFAULT); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_RESTART_AUTONEG); + if (ret_val) + return ret_val; + + mdelay(20); + + /* Now enable the transmitter */ + ret_val = + e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (ret_val) + return ret_val; + + hw->ffe_config_state = e1000_ffe_config_enabled; + } + } + return E1000_SUCCESS; +} + +/** + * e1000_set_phy_mode - Set PHY to class A mode + * @hw: Struct containing variables accessed by shared code + * + * Assumes the following operations will follow to enable the new class mode. + * 1. Do a PHY soft reset + * 2. Restart auto-negotiation or force link. + */ +static s32 e1000_set_phy_mode(struct e1000_hw *hw) +{ + s32 ret_val; + u16 eeprom_data; + + DEBUGFUNC("e1000_set_phy_mode"); + + if ((hw->mac_type == e1000_82545_rev_3) && + (hw->media_type == e1000_media_type_copper)) { + ret_val = + e1000_read_eeprom(hw, EEPROM_PHY_CLASS_WORD, 1, + &eeprom_data); + if (ret_val) { + return ret_val; + } + + if ((eeprom_data != EEPROM_RESERVED_WORD) && + (eeprom_data & EEPROM_PHY_CLASS_A)) { + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, + 0x000B); + if (ret_val) + return ret_val; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, + 0x8104); + if (ret_val) + return ret_val; + + hw->phy_reset_disable = false; + } + } + + return E1000_SUCCESS; +} + +/** + * e1000_set_d3_lplu_state - set d3 link power state + * @hw: Struct containing variables accessed by shared code + * @active: true to enable lplu false to disable lplu. + * + * This function sets the lplu state according to the active flag. When + * activating lplu this function also disables smart speed and vise versa. + * lplu will not be activated unless the device autonegotiation advertisement + * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + */ +static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active) +{ + s32 ret_val; + u16 phy_data; + DEBUGFUNC("e1000_set_d3_lplu_state"); + + if (hw->phy_type != e1000_phy_igp) + return E1000_SUCCESS; + + /* During driver activity LPLU should not be used or it will attain link + * from the lowest speeds starting from 10Mbps. The capability is used for + * Dx transitions and states */ + if (hw->mac_type == e1000_82541_rev_2 + || hw->mac_type == e1000_82547_rev_2) { + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, &phy_data); + if (ret_val) + return ret_val; + } + + if (!active) { + if (hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547_rev_2) { + phy_data &= ~IGP01E1000_GMII_FLEX_SPD; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + phy_data); + if (ret_val) + return ret_val; + } + + /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during + * Dx states where the power conservation is most important. During + * driver activity we should enable SmartSpeed, so performance is + * maintained. */ + if (hw->smart_speed == e1000_smart_speed_on) { + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= IGP01E1000_PSCFR_SMART_SPEED; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } else if (hw->smart_speed == e1000_smart_speed_off) { + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } + } else if ((hw->autoneg_advertised == AUTONEG_ADVERTISE_SPEED_DEFAULT) + || (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_ALL) + || (hw->autoneg_advertised == + AUTONEG_ADVERTISE_10_100_ALL)) { + + if (hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547_rev_2) { + phy_data |= IGP01E1000_GMII_FLEX_SPD; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + phy_data); + if (ret_val) + return ret_val; + } + + /* When LPLU is enabled we should disable SmartSpeed */ + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + + } + return E1000_SUCCESS; +} + +/** + * e1000_set_vco_speed + * @hw: Struct containing variables accessed by shared code + * + * Change VCO speed register to improve Bit Error Rate performance of SERDES. + */ +static s32 e1000_set_vco_speed(struct e1000_hw *hw) +{ + s32 ret_val; + u16 default_page = 0; + u16 phy_data; + + DEBUGFUNC("e1000_set_vco_speed"); + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + return E1000_SUCCESS; + } + + /* Set PHY register 30, page 5, bit 8 to 0 */ + + ret_val = + e1000_read_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, &default_page); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~M88E1000_PHY_VCO_REG_BIT8; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); + if (ret_val) + return ret_val; + + /* Set PHY register 30, page 4, bit 11 to 1 */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PHY_VCO_REG_BIT11; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); + if (ret_val) + return ret_val; + + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, default_page); + if (ret_val) + return ret_val; + + return E1000_SUCCESS; +} + + +/** + * e1000_enable_mng_pass_thru - check for bmc pass through + * @hw: Struct containing variables accessed by shared code + * + * Verifies the hardware needs to allow ARPs to be processed by the host + * returns: - true/false + */ +u32 e1000_enable_mng_pass_thru(struct e1000_hw *hw) +{ + u32 manc; + + if (hw->asf_firmware_present) { + manc = er32(MANC); + + if (!(manc & E1000_MANC_RCV_TCO_EN) || + !(manc & E1000_MANC_EN_MAC_ADDR_FILTER)) + return false; + if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN)) + return true; + } + return false; +} + +static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_status_reg; + u16 i; + + /* Polarity reversal workaround for forced 10F/10H links. */ + + /* Disable the transmitter on the PHY */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); + if (ret_val) + return ret_val; + + /* This loop will early-out if the NO link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Link Status bit + * to be clear. + */ + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0) + break; + mdelay(100); + } + + /* Recommended delay time after link has been lost */ + mdelay(1000); + + /* Now we will re-enable th transmitter on the PHY */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); + if (ret_val) + return ret_val; + + /* This loop will early-out if the link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Link Status bit + * to be set. + */ + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_LINK_STATUS) + break; + mdelay(100); + } + return E1000_SUCCESS; +} + +/** + * e1000_get_auto_rd_done + * @hw: Struct containing variables accessed by shared code + * + * Check for EEPROM Auto Read bit done. + * returns: - E1000_ERR_RESET if fail to reset MAC + * E1000_SUCCESS at any other case. + */ +static s32 e1000_get_auto_rd_done(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_get_auto_rd_done"); + msleep(5); + return E1000_SUCCESS; +} + +/** + * e1000_get_phy_cfg_done + * @hw: Struct containing variables accessed by shared code + * + * Checks if the PHY configuration is done + * returns: - E1000_ERR_RESET if fail to reset MAC + * E1000_SUCCESS at any other case. + */ +static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_get_phy_cfg_done"); + mdelay(10); + return E1000_SUCCESS; +} diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_hw-2.6.33-ethercat.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_hw-2.6.33-ethercat.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,3048 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* e1000_hw.h + * Structures, enums, and macros for the MAC + */ + +#ifndef _E1000_HW_H_ +#define _E1000_HW_H_ + +#include "e1000_osdep-2.6.33-ethercat.h" + +/* Forward declarations of structures used by the shared code */ +struct e1000_hw; +struct e1000_hw_stats; + +/* Enumerated types specific to the e1000 hardware */ +/* Media Access Controlers */ +typedef enum { + e1000_undefined = 0, + e1000_82542_rev2_0, + e1000_82542_rev2_1, + e1000_82543, + e1000_82544, + e1000_82540, + e1000_82545, + e1000_82545_rev_3, + e1000_82546, + e1000_82546_rev_3, + e1000_82541, + e1000_82541_rev_2, + e1000_82547, + e1000_82547_rev_2, + e1000_num_macs +} e1000_mac_type; + +typedef enum { + e1000_eeprom_uninitialized = 0, + e1000_eeprom_spi, + e1000_eeprom_microwire, + e1000_eeprom_flash, + e1000_eeprom_none, /* No NVM support */ + e1000_num_eeprom_types +} e1000_eeprom_type; + +/* Media Types */ +typedef enum { + e1000_media_type_copper = 0, + e1000_media_type_fiber = 1, + e1000_media_type_internal_serdes = 2, + e1000_num_media_types +} e1000_media_type; + +typedef enum { + e1000_10_half = 0, + e1000_10_full = 1, + e1000_100_half = 2, + e1000_100_full = 3 +} e1000_speed_duplex_type; + +/* Flow Control Settings */ +typedef enum { + E1000_FC_NONE = 0, + E1000_FC_RX_PAUSE = 1, + E1000_FC_TX_PAUSE = 2, + E1000_FC_FULL = 3, + E1000_FC_DEFAULT = 0xFF +} e1000_fc_type; + +struct e1000_shadow_ram { + u16 eeprom_word; + bool modified; +}; + +/* PCI bus types */ +typedef enum { + e1000_bus_type_unknown = 0, + e1000_bus_type_pci, + e1000_bus_type_pcix, + e1000_bus_type_reserved +} e1000_bus_type; + +/* PCI bus speeds */ +typedef enum { + e1000_bus_speed_unknown = 0, + e1000_bus_speed_33, + e1000_bus_speed_66, + e1000_bus_speed_100, + e1000_bus_speed_120, + e1000_bus_speed_133, + e1000_bus_speed_reserved +} e1000_bus_speed; + +/* PCI bus widths */ +typedef enum { + e1000_bus_width_unknown = 0, + e1000_bus_width_32, + e1000_bus_width_64, + e1000_bus_width_reserved +} e1000_bus_width; + +/* PHY status info structure and supporting enums */ +typedef enum { + e1000_cable_length_50 = 0, + e1000_cable_length_50_80, + e1000_cable_length_80_110, + e1000_cable_length_110_140, + e1000_cable_length_140, + e1000_cable_length_undefined = 0xFF +} e1000_cable_length; + +typedef enum { + e1000_gg_cable_length_60 = 0, + e1000_gg_cable_length_60_115 = 1, + e1000_gg_cable_length_115_150 = 2, + e1000_gg_cable_length_150 = 4 +} e1000_gg_cable_length; + +typedef enum { + e1000_igp_cable_length_10 = 10, + e1000_igp_cable_length_20 = 20, + e1000_igp_cable_length_30 = 30, + e1000_igp_cable_length_40 = 40, + e1000_igp_cable_length_50 = 50, + e1000_igp_cable_length_60 = 60, + e1000_igp_cable_length_70 = 70, + e1000_igp_cable_length_80 = 80, + e1000_igp_cable_length_90 = 90, + e1000_igp_cable_length_100 = 100, + e1000_igp_cable_length_110 = 110, + e1000_igp_cable_length_115 = 115, + e1000_igp_cable_length_120 = 120, + e1000_igp_cable_length_130 = 130, + e1000_igp_cable_length_140 = 140, + e1000_igp_cable_length_150 = 150, + e1000_igp_cable_length_160 = 160, + e1000_igp_cable_length_170 = 170, + e1000_igp_cable_length_180 = 180 +} e1000_igp_cable_length; + +typedef enum { + e1000_10bt_ext_dist_enable_normal = 0, + e1000_10bt_ext_dist_enable_lower, + e1000_10bt_ext_dist_enable_undefined = 0xFF +} e1000_10bt_ext_dist_enable; + +typedef enum { + e1000_rev_polarity_normal = 0, + e1000_rev_polarity_reversed, + e1000_rev_polarity_undefined = 0xFF +} e1000_rev_polarity; + +typedef enum { + e1000_downshift_normal = 0, + e1000_downshift_activated, + e1000_downshift_undefined = 0xFF +} e1000_downshift; + +typedef enum { + e1000_smart_speed_default = 0, + e1000_smart_speed_on, + e1000_smart_speed_off +} e1000_smart_speed; + +typedef enum { + e1000_polarity_reversal_enabled = 0, + e1000_polarity_reversal_disabled, + e1000_polarity_reversal_undefined = 0xFF +} e1000_polarity_reversal; + +typedef enum { + e1000_auto_x_mode_manual_mdi = 0, + e1000_auto_x_mode_manual_mdix, + e1000_auto_x_mode_auto1, + e1000_auto_x_mode_auto2, + e1000_auto_x_mode_undefined = 0xFF +} e1000_auto_x_mode; + +typedef enum { + e1000_1000t_rx_status_not_ok = 0, + e1000_1000t_rx_status_ok, + e1000_1000t_rx_status_undefined = 0xFF +} e1000_1000t_rx_status; + +typedef enum { + e1000_phy_m88 = 0, + e1000_phy_igp, + e1000_phy_undefined = 0xFF +} e1000_phy_type; + +typedef enum { + e1000_ms_hw_default = 0, + e1000_ms_force_master, + e1000_ms_force_slave, + e1000_ms_auto +} e1000_ms_type; + +typedef enum { + e1000_ffe_config_enabled = 0, + e1000_ffe_config_active, + e1000_ffe_config_blocked +} e1000_ffe_config; + +typedef enum { + e1000_dsp_config_disabled = 0, + e1000_dsp_config_enabled, + e1000_dsp_config_activated, + e1000_dsp_config_undefined = 0xFF +} e1000_dsp_config; + +struct e1000_phy_info { + e1000_cable_length cable_length; + e1000_10bt_ext_dist_enable extended_10bt_distance; + e1000_rev_polarity cable_polarity; + e1000_downshift downshift; + e1000_polarity_reversal polarity_correction; + e1000_auto_x_mode mdix_mode; + e1000_1000t_rx_status local_rx; + e1000_1000t_rx_status remote_rx; +}; + +struct e1000_phy_stats { + u32 idle_errors; + u32 receive_errors; +}; + +struct e1000_eeprom_info { + e1000_eeprom_type type; + u16 word_size; + u16 opcode_bits; + u16 address_bits; + u16 delay_usec; + u16 page_size; +}; + +/* Flex ASF Information */ +#define E1000_HOST_IF_MAX_SIZE 2048 + +typedef enum { + e1000_byte_align = 0, + e1000_word_align = 1, + e1000_dword_align = 2 +} e1000_align_type; + +/* Error Codes */ +#define E1000_SUCCESS 0 +#define E1000_ERR_EEPROM 1 +#define E1000_ERR_PHY 2 +#define E1000_ERR_CONFIG 3 +#define E1000_ERR_PARAM 4 +#define E1000_ERR_MAC_TYPE 5 +#define E1000_ERR_PHY_TYPE 6 +#define E1000_ERR_RESET 9 +#define E1000_ERR_MASTER_REQUESTS_PENDING 10 +#define E1000_ERR_HOST_INTERFACE_COMMAND 11 +#define E1000_BLK_PHY_RESET 12 + +#define E1000_BYTE_SWAP_WORD(_value) ((((_value) & 0x00ff) << 8) | \ + (((_value) & 0xff00) >> 8)) + +/* Function prototypes */ +/* Initialization */ +s32 e1000_reset_hw(struct e1000_hw *hw); +s32 e1000_init_hw(struct e1000_hw *hw); +s32 e1000_set_mac_type(struct e1000_hw *hw); +void e1000_set_media_type(struct e1000_hw *hw); + +/* Link Configuration */ +s32 e1000_setup_link(struct e1000_hw *hw); +s32 e1000_phy_setup_autoneg(struct e1000_hw *hw); +void e1000_config_collision_dist(struct e1000_hw *hw); +s32 e1000_check_for_link(struct e1000_hw *hw); +s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 * speed, u16 * duplex); +s32 e1000_force_mac_fc(struct e1000_hw *hw); + +/* PHY */ +s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 * phy_data); +s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 data); +s32 e1000_phy_hw_reset(struct e1000_hw *hw); +s32 e1000_phy_reset(struct e1000_hw *hw); +s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); +s32 e1000_validate_mdi_setting(struct e1000_hw *hw); + +/* EEPROM Functions */ +s32 e1000_init_eeprom_params(struct e1000_hw *hw); + +/* MNG HOST IF functions */ +u32 e1000_enable_mng_pass_thru(struct e1000_hw *hw); + +#define E1000_MNG_DHCP_TX_PAYLOAD_CMD 64 +#define E1000_HI_MAX_MNG_DATA_LENGTH 0x6F8 /* Host Interface data length */ + +#define E1000_MNG_DHCP_COMMAND_TIMEOUT 10 /* Time in ms to process MNG command */ +#define E1000_MNG_DHCP_COOKIE_OFFSET 0x6F0 /* Cookie offset */ +#define E1000_MNG_DHCP_COOKIE_LENGTH 0x10 /* Cookie length */ +#define E1000_MNG_IAMT_MODE 0x3 +#define E1000_MNG_ICH_IAMT_MODE 0x2 +#define E1000_IAMT_SIGNATURE 0x544D4149 /* Intel(R) Active Management Technology signature */ + +#define E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT 0x1 /* DHCP parsing enabled */ +#define E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT 0x2 /* DHCP parsing enabled */ +#define E1000_VFTA_ENTRY_SHIFT 0x5 +#define E1000_VFTA_ENTRY_MASK 0x7F +#define E1000_VFTA_ENTRY_BIT_SHIFT_MASK 0x1F + +struct e1000_host_mng_command_header { + u8 command_id; + u8 checksum; + u16 reserved1; + u16 reserved2; + u16 command_length; +}; + +struct e1000_host_mng_command_info { + struct e1000_host_mng_command_header command_header; /* Command Head/Command Result Head has 4 bytes */ + u8 command_data[E1000_HI_MAX_MNG_DATA_LENGTH]; /* Command data can length 0..0x658 */ +}; +#ifdef __BIG_ENDIAN +struct e1000_host_mng_dhcp_cookie { + u32 signature; + u16 vlan_id; + u8 reserved0; + u8 status; + u32 reserved1; + u8 checksum; + u8 reserved3; + u16 reserved2; +}; +#else +struct e1000_host_mng_dhcp_cookie { + u32 signature; + u8 status; + u8 reserved0; + u16 vlan_id; + u32 reserved1; + u16 reserved2; + u8 reserved3; + u8 checksum; +}; +#endif + +bool e1000_check_mng_mode(struct e1000_hw *hw); +s32 e1000_read_eeprom(struct e1000_hw *hw, u16 reg, u16 words, u16 * data); +s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw); +s32 e1000_update_eeprom_checksum(struct e1000_hw *hw); +s32 e1000_write_eeprom(struct e1000_hw *hw, u16 reg, u16 words, u16 * data); +s32 e1000_read_mac_addr(struct e1000_hw *hw); + +/* Filters (multicast, vlan, receive) */ +u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 * mc_addr); +void e1000_mta_set(struct e1000_hw *hw, u32 hash_value); +void e1000_rar_set(struct e1000_hw *hw, u8 * mc_addr, u32 rar_index); +void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value); + +/* LED functions */ +s32 e1000_setup_led(struct e1000_hw *hw); +s32 e1000_cleanup_led(struct e1000_hw *hw); +s32 e1000_led_on(struct e1000_hw *hw); +s32 e1000_led_off(struct e1000_hw *hw); +s32 e1000_blink_led_start(struct e1000_hw *hw); + +/* Adaptive IFS Functions */ + +/* Everything else */ +void e1000_reset_adaptive(struct e1000_hw *hw); +void e1000_update_adaptive(struct e1000_hw *hw); +void e1000_tbi_adjust_stats(struct e1000_hw *hw, struct e1000_hw_stats *stats, + u32 frame_len, u8 * mac_addr); +void e1000_get_bus_info(struct e1000_hw *hw); +void e1000_pci_set_mwi(struct e1000_hw *hw); +void e1000_pci_clear_mwi(struct e1000_hw *hw); +void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc); +int e1000_pcix_get_mmrbc(struct e1000_hw *hw); +/* Port I/O is only supported on 82544 and newer */ +void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value); + +#define E1000_READ_REG_IO(a, reg) \ + e1000_read_reg_io((a), E1000_##reg) +#define E1000_WRITE_REG_IO(a, reg, val) \ + e1000_write_reg_io((a), E1000_##reg, val) + +/* PCI Device IDs */ +#define E1000_DEV_ID_82542 0x1000 +#define E1000_DEV_ID_82543GC_FIBER 0x1001 +#define E1000_DEV_ID_82543GC_COPPER 0x1004 +#define E1000_DEV_ID_82544EI_COPPER 0x1008 +#define E1000_DEV_ID_82544EI_FIBER 0x1009 +#define E1000_DEV_ID_82544GC_COPPER 0x100C +#define E1000_DEV_ID_82544GC_LOM 0x100D +#define E1000_DEV_ID_82540EM 0x100E +#define E1000_DEV_ID_82540EM_LOM 0x1015 +#define E1000_DEV_ID_82540EP_LOM 0x1016 +#define E1000_DEV_ID_82540EP 0x1017 +#define E1000_DEV_ID_82540EP_LP 0x101E +#define E1000_DEV_ID_82545EM_COPPER 0x100F +#define E1000_DEV_ID_82545EM_FIBER 0x1011 +#define E1000_DEV_ID_82545GM_COPPER 0x1026 +#define E1000_DEV_ID_82545GM_FIBER 0x1027 +#define E1000_DEV_ID_82545GM_SERDES 0x1028 +#define E1000_DEV_ID_82546EB_COPPER 0x1010 +#define E1000_DEV_ID_82546EB_FIBER 0x1012 +#define E1000_DEV_ID_82546EB_QUAD_COPPER 0x101D +#define E1000_DEV_ID_82541EI 0x1013 +#define E1000_DEV_ID_82541EI_MOBILE 0x1018 +#define E1000_DEV_ID_82541ER_LOM 0x1014 +#define E1000_DEV_ID_82541ER 0x1078 +#define E1000_DEV_ID_82547GI 0x1075 +#define E1000_DEV_ID_82541GI 0x1076 +#define E1000_DEV_ID_82541GI_MOBILE 0x1077 +#define E1000_DEV_ID_82541GI_LF 0x107C +#define E1000_DEV_ID_82546GB_COPPER 0x1079 +#define E1000_DEV_ID_82546GB_FIBER 0x107A +#define E1000_DEV_ID_82546GB_SERDES 0x107B +#define E1000_DEV_ID_82546GB_PCIE 0x108A +#define E1000_DEV_ID_82546GB_QUAD_COPPER 0x1099 +#define E1000_DEV_ID_82547EI 0x1019 +#define E1000_DEV_ID_82547EI_MOBILE 0x101A +#define E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3 0x10B5 + +#define NODE_ADDRESS_SIZE 6 +#define ETH_LENGTH_OF_ADDRESS 6 + +/* MAC decode size is 128K - This is the size of BAR0 */ +#define MAC_DECODE_SIZE (128 * 1024) + +#define E1000_82542_2_0_REV_ID 2 +#define E1000_82542_2_1_REV_ID 3 +#define E1000_REVISION_0 0 +#define E1000_REVISION_1 1 +#define E1000_REVISION_2 2 +#define E1000_REVISION_3 3 + +#define SPEED_10 10 +#define SPEED_100 100 +#define SPEED_1000 1000 +#define HALF_DUPLEX 1 +#define FULL_DUPLEX 2 + +/* The sizes (in bytes) of a ethernet packet */ +#define ENET_HEADER_SIZE 14 +#define MINIMUM_ETHERNET_FRAME_SIZE 64 /* With FCS */ +#define ETHERNET_FCS_SIZE 4 +#define MINIMUM_ETHERNET_PACKET_SIZE \ + (MINIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE) +#define CRC_LENGTH ETHERNET_FCS_SIZE +#define MAX_JUMBO_FRAME_SIZE 0x3F00 + +/* 802.1q VLAN Packet Sizes */ +#define VLAN_TAG_SIZE 4 /* 802.3ac tag (not DMAed) */ + +/* Ethertype field values */ +#define ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.3ac packet */ +#define ETHERNET_IP_TYPE 0x0800 /* IP packets */ +#define ETHERNET_ARP_TYPE 0x0806 /* Address Resolution Protocol (ARP) */ + +/* Packet Header defines */ +#define IP_PROTOCOL_TCP 6 +#define IP_PROTOCOL_UDP 0x11 + +/* This defines the bits that are set in the Interrupt Mask + * Set/Read Register. Each bit is documented below: + * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0) + * o RXSEQ = Receive Sequence Error + */ +#define POLL_IMS_ENABLE_MASK ( \ + E1000_IMS_RXDMT0 | \ + E1000_IMS_RXSEQ) + +/* This defines the bits that are set in the Interrupt Mask + * Set/Read Register. Each bit is documented below: + * o RXT0 = Receiver Timer Interrupt (ring 0) + * o TXDW = Transmit Descriptor Written Back + * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0) + * o RXSEQ = Receive Sequence Error + * o LSC = Link Status Change + */ +#define IMS_ENABLE_MASK ( \ + E1000_IMS_RXT0 | \ + E1000_IMS_TXDW | \ + E1000_IMS_RXDMT0 | \ + E1000_IMS_RXSEQ | \ + E1000_IMS_LSC) + +/* Number of high/low register pairs in the RAR. The RAR (Receive Address + * Registers) holds the directed and multicast addresses that we monitor. We + * reserve one of these spots for our directed address, allowing us room for + * E1000_RAR_ENTRIES - 1 multicast addresses. + */ +#define E1000_RAR_ENTRIES 15 + +#define MIN_NUMBER_OF_DESCRIPTORS 8 +#define MAX_NUMBER_OF_DESCRIPTORS 0xFFF8 + +/* Receive Descriptor */ +struct e1000_rx_desc { + __le64 buffer_addr; /* Address of the descriptor's data buffer */ + __le16 length; /* Length of data DMAed into data buffer */ + __le16 csum; /* Packet checksum */ + u8 status; /* Descriptor status */ + u8 errors; /* Descriptor Errors */ + __le16 special; +}; + +/* Receive Descriptor - Extended */ +union e1000_rx_desc_extended { + struct { + __le64 buffer_addr; + __le64 reserved; + } read; + struct { + struct { + __le32 mrq; /* Multiple Rx Queues */ + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length; + __le16 vlan; /* VLAN tag */ + } upper; + } wb; /* writeback */ +}; + +#define MAX_PS_BUFFERS 4 +/* Receive Descriptor - Packet Split */ +union e1000_rx_desc_packet_split { + struct { + /* one buffer for protocol header(s), three data buffers */ + __le64 buffer_addr[MAX_PS_BUFFERS]; + } read; + struct { + struct { + __le32 mrq; /* Multiple Rx Queues */ + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length0; /* length of buffer 0 */ + __le16 vlan; /* VLAN tag */ + } middle; + struct { + __le16 header_status; + __le16 length[3]; /* length of buffers 1-3 */ + } upper; + __le64 reserved; + } wb; /* writeback */ +}; + +/* Receive Descriptor bit definitions */ +#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */ +#define E1000_RXD_STAT_EOP 0x02 /* End of Packet */ +#define E1000_RXD_STAT_IXSM 0x04 /* Ignore checksum */ +#define E1000_RXD_STAT_VP 0x08 /* IEEE VLAN Packet */ +#define E1000_RXD_STAT_UDPCS 0x10 /* UDP xsum calculated */ +#define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */ +#define E1000_RXD_STAT_IPCS 0x40 /* IP xsum calculated */ +#define E1000_RXD_STAT_PIF 0x80 /* passed in-exact filter */ +#define E1000_RXD_STAT_IPIDV 0x200 /* IP identification valid */ +#define E1000_RXD_STAT_UDPV 0x400 /* Valid UDP checksum */ +#define E1000_RXD_STAT_ACK 0x8000 /* ACK Packet indication */ +#define E1000_RXD_ERR_CE 0x01 /* CRC Error */ +#define E1000_RXD_ERR_SE 0x02 /* Symbol Error */ +#define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */ +#define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */ +#define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */ +#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */ +#define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */ +#define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */ +#define E1000_RXD_SPC_PRI_MASK 0xE000 /* Priority is in upper 3 bits */ +#define E1000_RXD_SPC_PRI_SHIFT 13 +#define E1000_RXD_SPC_CFI_MASK 0x1000 /* CFI is bit 12 */ +#define E1000_RXD_SPC_CFI_SHIFT 12 + +#define E1000_RXDEXT_STATERR_CE 0x01000000 +#define E1000_RXDEXT_STATERR_SE 0x02000000 +#define E1000_RXDEXT_STATERR_SEQ 0x04000000 +#define E1000_RXDEXT_STATERR_CXE 0x10000000 +#define E1000_RXDEXT_STATERR_TCPE 0x20000000 +#define E1000_RXDEXT_STATERR_IPE 0x40000000 +#define E1000_RXDEXT_STATERR_RXE 0x80000000 + +#define E1000_RXDPS_HDRSTAT_HDRSP 0x00008000 +#define E1000_RXDPS_HDRSTAT_HDRLEN_MASK 0x000003FF + +/* mask to determine if packets should be dropped due to frame errors */ +#define E1000_RXD_ERR_FRAME_ERR_MASK ( \ + E1000_RXD_ERR_CE | \ + E1000_RXD_ERR_SE | \ + E1000_RXD_ERR_SEQ | \ + E1000_RXD_ERR_CXE | \ + E1000_RXD_ERR_RXE) + +/* Same mask, but for extended and packet split descriptors */ +#define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \ + E1000_RXDEXT_STATERR_CE | \ + E1000_RXDEXT_STATERR_SE | \ + E1000_RXDEXT_STATERR_SEQ | \ + E1000_RXDEXT_STATERR_CXE | \ + E1000_RXDEXT_STATERR_RXE) + +/* Transmit Descriptor */ +struct e1000_tx_desc { + __le64 buffer_addr; /* Address of the descriptor's data buffer */ + union { + __le32 data; + struct { + __le16 length; /* Data buffer length */ + u8 cso; /* Checksum offset */ + u8 cmd; /* Descriptor control */ + } flags; + } lower; + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 css; /* Checksum start */ + __le16 special; + } fields; + } upper; +}; + +/* Transmit Descriptor bit definitions */ +#define E1000_TXD_DTYP_D 0x00100000 /* Data Descriptor */ +#define E1000_TXD_DTYP_C 0x00000000 /* Context Descriptor */ +#define E1000_TXD_POPTS_IXSM 0x01 /* Insert IP checksum */ +#define E1000_TXD_POPTS_TXSM 0x02 /* Insert TCP/UDP checksum */ +#define E1000_TXD_CMD_EOP 0x01000000 /* End of Packet */ +#define E1000_TXD_CMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */ +#define E1000_TXD_CMD_IC 0x04000000 /* Insert Checksum */ +#define E1000_TXD_CMD_RS 0x08000000 /* Report Status */ +#define E1000_TXD_CMD_RPS 0x10000000 /* Report Packet Sent */ +#define E1000_TXD_CMD_DEXT 0x20000000 /* Descriptor extension (0 = legacy) */ +#define E1000_TXD_CMD_VLE 0x40000000 /* Add VLAN tag */ +#define E1000_TXD_CMD_IDE 0x80000000 /* Enable Tidv register */ +#define E1000_TXD_STAT_DD 0x00000001 /* Descriptor Done */ +#define E1000_TXD_STAT_EC 0x00000002 /* Excess Collisions */ +#define E1000_TXD_STAT_LC 0x00000004 /* Late Collisions */ +#define E1000_TXD_STAT_TU 0x00000008 /* Transmit underrun */ +#define E1000_TXD_CMD_TCP 0x01000000 /* TCP packet */ +#define E1000_TXD_CMD_IP 0x02000000 /* IP packet */ +#define E1000_TXD_CMD_TSE 0x04000000 /* TCP Seg enable */ +#define E1000_TXD_STAT_TC 0x00000004 /* Tx Underrun */ + +/* Offload Context Descriptor */ +struct e1000_context_desc { + union { + __le32 ip_config; + struct { + u8 ipcss; /* IP checksum start */ + u8 ipcso; /* IP checksum offset */ + __le16 ipcse; /* IP checksum end */ + } ip_fields; + } lower_setup; + union { + __le32 tcp_config; + struct { + u8 tucss; /* TCP checksum start */ + u8 tucso; /* TCP checksum offset */ + __le16 tucse; /* TCP checksum end */ + } tcp_fields; + } upper_setup; + __le32 cmd_and_length; /* */ + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 hdr_len; /* Header length */ + __le16 mss; /* Maximum segment size */ + } fields; + } tcp_seg_setup; +}; + +/* Offload data descriptor */ +struct e1000_data_desc { + __le64 buffer_addr; /* Address of the descriptor's buffer address */ + union { + __le32 data; + struct { + __le16 length; /* Data buffer length */ + u8 typ_len_ext; /* */ + u8 cmd; /* */ + } flags; + } lower; + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 popts; /* Packet Options */ + __le16 special; /* */ + } fields; + } upper; +}; + +/* Filters */ +#define E1000_NUM_UNICAST 16 /* Unicast filter entries */ +#define E1000_MC_TBL_SIZE 128 /* Multicast Filter Table (4096 bits) */ +#define E1000_VLAN_FILTER_TBL_SIZE 128 /* VLAN Filter Table (4096 bits) */ + +/* Receive Address Register */ +struct e1000_rar { + volatile __le32 low; /* receive address low */ + volatile __le32 high; /* receive address high */ +}; + +/* Number of entries in the Multicast Table Array (MTA). */ +#define E1000_NUM_MTA_REGISTERS 128 + +/* IPv4 Address Table Entry */ +struct e1000_ipv4_at_entry { + volatile u32 ipv4_addr; /* IP Address (RW) */ + volatile u32 reserved; +}; + +/* Four wakeup IP addresses are supported */ +#define E1000_WAKEUP_IP_ADDRESS_COUNT_MAX 4 +#define E1000_IP4AT_SIZE E1000_WAKEUP_IP_ADDRESS_COUNT_MAX +#define E1000_IP6AT_SIZE 1 + +/* IPv6 Address Table Entry */ +struct e1000_ipv6_at_entry { + volatile u8 ipv6_addr[16]; +}; + +/* Flexible Filter Length Table Entry */ +struct e1000_fflt_entry { + volatile u32 length; /* Flexible Filter Length (RW) */ + volatile u32 reserved; +}; + +/* Flexible Filter Mask Table Entry */ +struct e1000_ffmt_entry { + volatile u32 mask; /* Flexible Filter Mask (RW) */ + volatile u32 reserved; +}; + +/* Flexible Filter Value Table Entry */ +struct e1000_ffvt_entry { + volatile u32 value; /* Flexible Filter Value (RW) */ + volatile u32 reserved; +}; + +/* Four Flexible Filters are supported */ +#define E1000_FLEXIBLE_FILTER_COUNT_MAX 4 + +/* Each Flexible Filter is at most 128 (0x80) bytes in length */ +#define E1000_FLEXIBLE_FILTER_SIZE_MAX 128 + +#define E1000_FFLT_SIZE E1000_FLEXIBLE_FILTER_COUNT_MAX +#define E1000_FFMT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX +#define E1000_FFVT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX + +#define E1000_DISABLE_SERDES_LOOPBACK 0x0400 + +/* Register Set. (82543, 82544) + * + * Registers are defined to be 32 bits and should be accessed as 32 bit values. + * These registers are physically located on the NIC, but are mapped into the + * host memory address space. + * + * RW - register is both readable and writable + * RO - register is read only + * WO - register is write only + * R/clr - register is read only and is cleared when read + * A - register array + */ +#define E1000_CTRL 0x00000 /* Device Control - RW */ +#define E1000_CTRL_DUP 0x00004 /* Device Control Duplicate (Shadow) - RW */ +#define E1000_STATUS 0x00008 /* Device Status - RO */ +#define E1000_EECD 0x00010 /* EEPROM/Flash Control - RW */ +#define E1000_EERD 0x00014 /* EEPROM Read - RW */ +#define E1000_CTRL_EXT 0x00018 /* Extended Device Control - RW */ +#define E1000_FLA 0x0001C /* Flash Access - RW */ +#define E1000_MDIC 0x00020 /* MDI Control - RW */ +#define E1000_SCTL 0x00024 /* SerDes Control - RW */ +#define E1000_FEXTNVM 0x00028 /* Future Extended NVM register */ +#define E1000_FCAL 0x00028 /* Flow Control Address Low - RW */ +#define E1000_FCAH 0x0002C /* Flow Control Address High -RW */ +#define E1000_FCT 0x00030 /* Flow Control Type - RW */ +#define E1000_VET 0x00038 /* VLAN Ether Type - RW */ +#define E1000_ICR 0x000C0 /* Interrupt Cause Read - R/clr */ +#define E1000_ITR 0x000C4 /* Interrupt Throttling Rate - RW */ +#define E1000_ICS 0x000C8 /* Interrupt Cause Set - WO */ +#define E1000_IMS 0x000D0 /* Interrupt Mask Set - RW */ +#define E1000_IMC 0x000D8 /* Interrupt Mask Clear - WO */ +#define E1000_IAM 0x000E0 /* Interrupt Acknowledge Auto Mask */ +#define E1000_RCTL 0x00100 /* RX Control - RW */ +#define E1000_RDTR1 0x02820 /* RX Delay Timer (1) - RW */ +#define E1000_RDBAL1 0x02900 /* RX Descriptor Base Address Low (1) - RW */ +#define E1000_RDBAH1 0x02904 /* RX Descriptor Base Address High (1) - RW */ +#define E1000_RDLEN1 0x02908 /* RX Descriptor Length (1) - RW */ +#define E1000_RDH1 0x02910 /* RX Descriptor Head (1) - RW */ +#define E1000_RDT1 0x02918 /* RX Descriptor Tail (1) - RW */ +#define E1000_FCTTV 0x00170 /* Flow Control Transmit Timer Value - RW */ +#define E1000_TXCW 0x00178 /* TX Configuration Word - RW */ +#define E1000_RXCW 0x00180 /* RX Configuration Word - RO */ +#define E1000_TCTL 0x00400 /* TX Control - RW */ +#define E1000_TCTL_EXT 0x00404 /* Extended TX Control - RW */ +#define E1000_TIPG 0x00410 /* TX Inter-packet gap -RW */ +#define E1000_TBT 0x00448 /* TX Burst Timer - RW */ +#define E1000_AIT 0x00458 /* Adaptive Interframe Spacing Throttle - RW */ +#define E1000_LEDCTL 0x00E00 /* LED Control - RW */ +#define E1000_EXTCNF_CTRL 0x00F00 /* Extended Configuration Control */ +#define E1000_EXTCNF_SIZE 0x00F08 /* Extended Configuration Size */ +#define E1000_PHY_CTRL 0x00F10 /* PHY Control Register in CSR */ +#define FEXTNVM_SW_CONFIG 0x0001 +#define E1000_PBA 0x01000 /* Packet Buffer Allocation - RW */ +#define E1000_PBS 0x01008 /* Packet Buffer Size */ +#define E1000_EEMNGCTL 0x01010 /* MNG EEprom Control */ +#define E1000_FLASH_UPDATES 1000 +#define E1000_EEARBC 0x01024 /* EEPROM Auto Read Bus Control */ +#define E1000_FLASHT 0x01028 /* FLASH Timer Register */ +#define E1000_EEWR 0x0102C /* EEPROM Write Register - RW */ +#define E1000_FLSWCTL 0x01030 /* FLASH control register */ +#define E1000_FLSWDATA 0x01034 /* FLASH data register */ +#define E1000_FLSWCNT 0x01038 /* FLASH Access Counter */ +#define E1000_FLOP 0x0103C /* FLASH Opcode Register */ +#define E1000_ERT 0x02008 /* Early Rx Threshold - RW */ +#define E1000_FCRTL 0x02160 /* Flow Control Receive Threshold Low - RW */ +#define E1000_FCRTH 0x02168 /* Flow Control Receive Threshold High - RW */ +#define E1000_PSRCTL 0x02170 /* Packet Split Receive Control - RW */ +#define E1000_RDBAL 0x02800 /* RX Descriptor Base Address Low - RW */ +#define E1000_RDBAH 0x02804 /* RX Descriptor Base Address High - RW */ +#define E1000_RDLEN 0x02808 /* RX Descriptor Length - RW */ +#define E1000_RDH 0x02810 /* RX Descriptor Head - RW */ +#define E1000_RDT 0x02818 /* RX Descriptor Tail - RW */ +#define E1000_RDTR 0x02820 /* RX Delay Timer - RW */ +#define E1000_RDBAL0 E1000_RDBAL /* RX Desc Base Address Low (0) - RW */ +#define E1000_RDBAH0 E1000_RDBAH /* RX Desc Base Address High (0) - RW */ +#define E1000_RDLEN0 E1000_RDLEN /* RX Desc Length (0) - RW */ +#define E1000_RDH0 E1000_RDH /* RX Desc Head (0) - RW */ +#define E1000_RDT0 E1000_RDT /* RX Desc Tail (0) - RW */ +#define E1000_RDTR0 E1000_RDTR /* RX Delay Timer (0) - RW */ +#define E1000_RXDCTL 0x02828 /* RX Descriptor Control queue 0 - RW */ +#define E1000_RXDCTL1 0x02928 /* RX Descriptor Control queue 1 - RW */ +#define E1000_RADV 0x0282C /* RX Interrupt Absolute Delay Timer - RW */ +#define E1000_RSRPD 0x02C00 /* RX Small Packet Detect - RW */ +#define E1000_RAID 0x02C08 /* Receive Ack Interrupt Delay - RW */ +#define E1000_TXDMAC 0x03000 /* TX DMA Control - RW */ +#define E1000_KABGTXD 0x03004 /* AFE Band Gap Transmit Ref Data */ +#define E1000_TDFH 0x03410 /* TX Data FIFO Head - RW */ +#define E1000_TDFT 0x03418 /* TX Data FIFO Tail - RW */ +#define E1000_TDFHS 0x03420 /* TX Data FIFO Head Saved - RW */ +#define E1000_TDFTS 0x03428 /* TX Data FIFO Tail Saved - RW */ +#define E1000_TDFPC 0x03430 /* TX Data FIFO Packet Count - RW */ +#define E1000_TDBAL 0x03800 /* TX Descriptor Base Address Low - RW */ +#define E1000_TDBAH 0x03804 /* TX Descriptor Base Address High - RW */ +#define E1000_TDLEN 0x03808 /* TX Descriptor Length - RW */ +#define E1000_TDH 0x03810 /* TX Descriptor Head - RW */ +#define E1000_TDT 0x03818 /* TX Descripotr Tail - RW */ +#define E1000_TIDV 0x03820 /* TX Interrupt Delay Value - RW */ +#define E1000_TXDCTL 0x03828 /* TX Descriptor Control - RW */ +#define E1000_TADV 0x0382C /* TX Interrupt Absolute Delay Val - RW */ +#define E1000_TSPMT 0x03830 /* TCP Segmentation PAD & Min Threshold - RW */ +#define E1000_TARC0 0x03840 /* TX Arbitration Count (0) */ +#define E1000_TDBAL1 0x03900 /* TX Desc Base Address Low (1) - RW */ +#define E1000_TDBAH1 0x03904 /* TX Desc Base Address High (1) - RW */ +#define E1000_TDLEN1 0x03908 /* TX Desc Length (1) - RW */ +#define E1000_TDH1 0x03910 /* TX Desc Head (1) - RW */ +#define E1000_TDT1 0x03918 /* TX Desc Tail (1) - RW */ +#define E1000_TXDCTL1 0x03928 /* TX Descriptor Control (1) - RW */ +#define E1000_TARC1 0x03940 /* TX Arbitration Count (1) */ +#define E1000_CRCERRS 0x04000 /* CRC Error Count - R/clr */ +#define E1000_ALGNERRC 0x04004 /* Alignment Error Count - R/clr */ +#define E1000_SYMERRS 0x04008 /* Symbol Error Count - R/clr */ +#define E1000_RXERRC 0x0400C /* Receive Error Count - R/clr */ +#define E1000_MPC 0x04010 /* Missed Packet Count - R/clr */ +#define E1000_SCC 0x04014 /* Single Collision Count - R/clr */ +#define E1000_ECOL 0x04018 /* Excessive Collision Count - R/clr */ +#define E1000_MCC 0x0401C /* Multiple Collision Count - R/clr */ +#define E1000_LATECOL 0x04020 /* Late Collision Count - R/clr */ +#define E1000_COLC 0x04028 /* Collision Count - R/clr */ +#define E1000_DC 0x04030 /* Defer Count - R/clr */ +#define E1000_TNCRS 0x04034 /* TX-No CRS - R/clr */ +#define E1000_SEC 0x04038 /* Sequence Error Count - R/clr */ +#define E1000_CEXTERR 0x0403C /* Carrier Extension Error Count - R/clr */ +#define E1000_RLEC 0x04040 /* Receive Length Error Count - R/clr */ +#define E1000_XONRXC 0x04048 /* XON RX Count - R/clr */ +#define E1000_XONTXC 0x0404C /* XON TX Count - R/clr */ +#define E1000_XOFFRXC 0x04050 /* XOFF RX Count - R/clr */ +#define E1000_XOFFTXC 0x04054 /* XOFF TX Count - R/clr */ +#define E1000_FCRUC 0x04058 /* Flow Control RX Unsupported Count- R/clr */ +#define E1000_PRC64 0x0405C /* Packets RX (64 bytes) - R/clr */ +#define E1000_PRC127 0x04060 /* Packets RX (65-127 bytes) - R/clr */ +#define E1000_PRC255 0x04064 /* Packets RX (128-255 bytes) - R/clr */ +#define E1000_PRC511 0x04068 /* Packets RX (255-511 bytes) - R/clr */ +#define E1000_PRC1023 0x0406C /* Packets RX (512-1023 bytes) - R/clr */ +#define E1000_PRC1522 0x04070 /* Packets RX (1024-1522 bytes) - R/clr */ +#define E1000_GPRC 0x04074 /* Good Packets RX Count - R/clr */ +#define E1000_BPRC 0x04078 /* Broadcast Packets RX Count - R/clr */ +#define E1000_MPRC 0x0407C /* Multicast Packets RX Count - R/clr */ +#define E1000_GPTC 0x04080 /* Good Packets TX Count - R/clr */ +#define E1000_GORCL 0x04088 /* Good Octets RX Count Low - R/clr */ +#define E1000_GORCH 0x0408C /* Good Octets RX Count High - R/clr */ +#define E1000_GOTCL 0x04090 /* Good Octets TX Count Low - R/clr */ +#define E1000_GOTCH 0x04094 /* Good Octets TX Count High - R/clr */ +#define E1000_RNBC 0x040A0 /* RX No Buffers Count - R/clr */ +#define E1000_RUC 0x040A4 /* RX Undersize Count - R/clr */ +#define E1000_RFC 0x040A8 /* RX Fragment Count - R/clr */ +#define E1000_ROC 0x040AC /* RX Oversize Count - R/clr */ +#define E1000_RJC 0x040B0 /* RX Jabber Count - R/clr */ +#define E1000_MGTPRC 0x040B4 /* Management Packets RX Count - R/clr */ +#define E1000_MGTPDC 0x040B8 /* Management Packets Dropped Count - R/clr */ +#define E1000_MGTPTC 0x040BC /* Management Packets TX Count - R/clr */ +#define E1000_TORL 0x040C0 /* Total Octets RX Low - R/clr */ +#define E1000_TORH 0x040C4 /* Total Octets RX High - R/clr */ +#define E1000_TOTL 0x040C8 /* Total Octets TX Low - R/clr */ +#define E1000_TOTH 0x040CC /* Total Octets TX High - R/clr */ +#define E1000_TPR 0x040D0 /* Total Packets RX - R/clr */ +#define E1000_TPT 0x040D4 /* Total Packets TX - R/clr */ +#define E1000_PTC64 0x040D8 /* Packets TX (64 bytes) - R/clr */ +#define E1000_PTC127 0x040DC /* Packets TX (65-127 bytes) - R/clr */ +#define E1000_PTC255 0x040E0 /* Packets TX (128-255 bytes) - R/clr */ +#define E1000_PTC511 0x040E4 /* Packets TX (256-511 bytes) - R/clr */ +#define E1000_PTC1023 0x040E8 /* Packets TX (512-1023 bytes) - R/clr */ +#define E1000_PTC1522 0x040EC /* Packets TX (1024-1522 Bytes) - R/clr */ +#define E1000_MPTC 0x040F0 /* Multicast Packets TX Count - R/clr */ +#define E1000_BPTC 0x040F4 /* Broadcast Packets TX Count - R/clr */ +#define E1000_TSCTC 0x040F8 /* TCP Segmentation Context TX - R/clr */ +#define E1000_TSCTFC 0x040FC /* TCP Segmentation Context TX Fail - R/clr */ +#define E1000_IAC 0x04100 /* Interrupt Assertion Count */ +#define E1000_ICRXPTC 0x04104 /* Interrupt Cause Rx Packet Timer Expire Count */ +#define E1000_ICRXATC 0x04108 /* Interrupt Cause Rx Absolute Timer Expire Count */ +#define E1000_ICTXPTC 0x0410C /* Interrupt Cause Tx Packet Timer Expire Count */ +#define E1000_ICTXATC 0x04110 /* Interrupt Cause Tx Absolute Timer Expire Count */ +#define E1000_ICTXQEC 0x04118 /* Interrupt Cause Tx Queue Empty Count */ +#define E1000_ICTXQMTC 0x0411C /* Interrupt Cause Tx Queue Minimum Threshold Count */ +#define E1000_ICRXDMTC 0x04120 /* Interrupt Cause Rx Descriptor Minimum Threshold Count */ +#define E1000_ICRXOC 0x04124 /* Interrupt Cause Receiver Overrun Count */ +#define E1000_RXCSUM 0x05000 /* RX Checksum Control - RW */ +#define E1000_RFCTL 0x05008 /* Receive Filter Control */ +#define E1000_MTA 0x05200 /* Multicast Table Array - RW Array */ +#define E1000_RA 0x05400 /* Receive Address - RW Array */ +#define E1000_VFTA 0x05600 /* VLAN Filter Table Array - RW Array */ +#define E1000_WUC 0x05800 /* Wakeup Control - RW */ +#define E1000_WUFC 0x05808 /* Wakeup Filter Control - RW */ +#define E1000_WUS 0x05810 /* Wakeup Status - RO */ +#define E1000_MANC 0x05820 /* Management Control - RW */ +#define E1000_IPAV 0x05838 /* IP Address Valid - RW */ +#define E1000_IP4AT 0x05840 /* IPv4 Address Table - RW Array */ +#define E1000_IP6AT 0x05880 /* IPv6 Address Table - RW Array */ +#define E1000_WUPL 0x05900 /* Wakeup Packet Length - RW */ +#define E1000_WUPM 0x05A00 /* Wakeup Packet Memory - RO A */ +#define E1000_FFLT 0x05F00 /* Flexible Filter Length Table - RW Array */ +#define E1000_HOST_IF 0x08800 /* Host Interface */ +#define E1000_FFMT 0x09000 /* Flexible Filter Mask Table - RW Array */ +#define E1000_FFVT 0x09800 /* Flexible Filter Value Table - RW Array */ + +#define E1000_KUMCTRLSTA 0x00034 /* MAC-PHY interface - RW */ +#define E1000_MDPHYA 0x0003C /* PHY address - RW */ +#define E1000_MANC2H 0x05860 /* Managment Control To Host - RW */ +#define E1000_SW_FW_SYNC 0x05B5C /* Software-Firmware Synchronization - RW */ + +#define E1000_GCR 0x05B00 /* PCI-Ex Control */ +#define E1000_GSCL_1 0x05B10 /* PCI-Ex Statistic Control #1 */ +#define E1000_GSCL_2 0x05B14 /* PCI-Ex Statistic Control #2 */ +#define E1000_GSCL_3 0x05B18 /* PCI-Ex Statistic Control #3 */ +#define E1000_GSCL_4 0x05B1C /* PCI-Ex Statistic Control #4 */ +#define E1000_FACTPS 0x05B30 /* Function Active and Power State to MNG */ +#define E1000_SWSM 0x05B50 /* SW Semaphore */ +#define E1000_FWSM 0x05B54 /* FW Semaphore */ +#define E1000_FFLT_DBG 0x05F04 /* Debug Register */ +#define E1000_HICR 0x08F00 /* Host Interface Control */ + +/* RSS registers */ +#define E1000_CPUVEC 0x02C10 /* CPU Vector Register - RW */ +#define E1000_MRQC 0x05818 /* Multiple Receive Control - RW */ +#define E1000_RETA 0x05C00 /* Redirection Table - RW Array */ +#define E1000_RSSRK 0x05C80 /* RSS Random Key - RW Array */ +#define E1000_RSSIM 0x05864 /* RSS Interrupt Mask */ +#define E1000_RSSIR 0x05868 /* RSS Interrupt Request */ +/* Register Set (82542) + * + * Some of the 82542 registers are located at different offsets than they are + * in more current versions of the 8254x. Despite the difference in location, + * the registers function in the same manner. + */ +#define E1000_82542_CTRL E1000_CTRL +#define E1000_82542_CTRL_DUP E1000_CTRL_DUP +#define E1000_82542_STATUS E1000_STATUS +#define E1000_82542_EECD E1000_EECD +#define E1000_82542_EERD E1000_EERD +#define E1000_82542_CTRL_EXT E1000_CTRL_EXT +#define E1000_82542_FLA E1000_FLA +#define E1000_82542_MDIC E1000_MDIC +#define E1000_82542_SCTL E1000_SCTL +#define E1000_82542_FEXTNVM E1000_FEXTNVM +#define E1000_82542_FCAL E1000_FCAL +#define E1000_82542_FCAH E1000_FCAH +#define E1000_82542_FCT E1000_FCT +#define E1000_82542_VET E1000_VET +#define E1000_82542_RA 0x00040 +#define E1000_82542_ICR E1000_ICR +#define E1000_82542_ITR E1000_ITR +#define E1000_82542_ICS E1000_ICS +#define E1000_82542_IMS E1000_IMS +#define E1000_82542_IMC E1000_IMC +#define E1000_82542_RCTL E1000_RCTL +#define E1000_82542_RDTR 0x00108 +#define E1000_82542_RDBAL 0x00110 +#define E1000_82542_RDBAH 0x00114 +#define E1000_82542_RDLEN 0x00118 +#define E1000_82542_RDH 0x00120 +#define E1000_82542_RDT 0x00128 +#define E1000_82542_RDTR0 E1000_82542_RDTR +#define E1000_82542_RDBAL0 E1000_82542_RDBAL +#define E1000_82542_RDBAH0 E1000_82542_RDBAH +#define E1000_82542_RDLEN0 E1000_82542_RDLEN +#define E1000_82542_RDH0 E1000_82542_RDH +#define E1000_82542_RDT0 E1000_82542_RDT +#define E1000_82542_SRRCTL(_n) (0x280C + ((_n) << 8)) /* Split and Replication + * RX Control - RW */ +#define E1000_82542_DCA_RXCTRL(_n) (0x02814 + ((_n) << 8)) +#define E1000_82542_RDBAH3 0x02B04 /* RX Desc Base High Queue 3 - RW */ +#define E1000_82542_RDBAL3 0x02B00 /* RX Desc Low Queue 3 - RW */ +#define E1000_82542_RDLEN3 0x02B08 /* RX Desc Length Queue 3 - RW */ +#define E1000_82542_RDH3 0x02B10 /* RX Desc Head Queue 3 - RW */ +#define E1000_82542_RDT3 0x02B18 /* RX Desc Tail Queue 3 - RW */ +#define E1000_82542_RDBAL2 0x02A00 /* RX Desc Base Low Queue 2 - RW */ +#define E1000_82542_RDBAH2 0x02A04 /* RX Desc Base High Queue 2 - RW */ +#define E1000_82542_RDLEN2 0x02A08 /* RX Desc Length Queue 2 - RW */ +#define E1000_82542_RDH2 0x02A10 /* RX Desc Head Queue 2 - RW */ +#define E1000_82542_RDT2 0x02A18 /* RX Desc Tail Queue 2 - RW */ +#define E1000_82542_RDTR1 0x00130 +#define E1000_82542_RDBAL1 0x00138 +#define E1000_82542_RDBAH1 0x0013C +#define E1000_82542_RDLEN1 0x00140 +#define E1000_82542_RDH1 0x00148 +#define E1000_82542_RDT1 0x00150 +#define E1000_82542_FCRTH 0x00160 +#define E1000_82542_FCRTL 0x00168 +#define E1000_82542_FCTTV E1000_FCTTV +#define E1000_82542_TXCW E1000_TXCW +#define E1000_82542_RXCW E1000_RXCW +#define E1000_82542_MTA 0x00200 +#define E1000_82542_TCTL E1000_TCTL +#define E1000_82542_TCTL_EXT E1000_TCTL_EXT +#define E1000_82542_TIPG E1000_TIPG +#define E1000_82542_TDBAL 0x00420 +#define E1000_82542_TDBAH 0x00424 +#define E1000_82542_TDLEN 0x00428 +#define E1000_82542_TDH 0x00430 +#define E1000_82542_TDT 0x00438 +#define E1000_82542_TIDV 0x00440 +#define E1000_82542_TBT E1000_TBT +#define E1000_82542_AIT E1000_AIT +#define E1000_82542_VFTA 0x00600 +#define E1000_82542_LEDCTL E1000_LEDCTL +#define E1000_82542_PBA E1000_PBA +#define E1000_82542_PBS E1000_PBS +#define E1000_82542_EEMNGCTL E1000_EEMNGCTL +#define E1000_82542_EEARBC E1000_EEARBC +#define E1000_82542_FLASHT E1000_FLASHT +#define E1000_82542_EEWR E1000_EEWR +#define E1000_82542_FLSWCTL E1000_FLSWCTL +#define E1000_82542_FLSWDATA E1000_FLSWDATA +#define E1000_82542_FLSWCNT E1000_FLSWCNT +#define E1000_82542_FLOP E1000_FLOP +#define E1000_82542_EXTCNF_CTRL E1000_EXTCNF_CTRL +#define E1000_82542_EXTCNF_SIZE E1000_EXTCNF_SIZE +#define E1000_82542_PHY_CTRL E1000_PHY_CTRL +#define E1000_82542_ERT E1000_ERT +#define E1000_82542_RXDCTL E1000_RXDCTL +#define E1000_82542_RXDCTL1 E1000_RXDCTL1 +#define E1000_82542_RADV E1000_RADV +#define E1000_82542_RSRPD E1000_RSRPD +#define E1000_82542_TXDMAC E1000_TXDMAC +#define E1000_82542_KABGTXD E1000_KABGTXD +#define E1000_82542_TDFHS E1000_TDFHS +#define E1000_82542_TDFTS E1000_TDFTS +#define E1000_82542_TDFPC E1000_TDFPC +#define E1000_82542_TXDCTL E1000_TXDCTL +#define E1000_82542_TADV E1000_TADV +#define E1000_82542_TSPMT E1000_TSPMT +#define E1000_82542_CRCERRS E1000_CRCERRS +#define E1000_82542_ALGNERRC E1000_ALGNERRC +#define E1000_82542_SYMERRS E1000_SYMERRS +#define E1000_82542_RXERRC E1000_RXERRC +#define E1000_82542_MPC E1000_MPC +#define E1000_82542_SCC E1000_SCC +#define E1000_82542_ECOL E1000_ECOL +#define E1000_82542_MCC E1000_MCC +#define E1000_82542_LATECOL E1000_LATECOL +#define E1000_82542_COLC E1000_COLC +#define E1000_82542_DC E1000_DC +#define E1000_82542_TNCRS E1000_TNCRS +#define E1000_82542_SEC E1000_SEC +#define E1000_82542_CEXTERR E1000_CEXTERR +#define E1000_82542_RLEC E1000_RLEC +#define E1000_82542_XONRXC E1000_XONRXC +#define E1000_82542_XONTXC E1000_XONTXC +#define E1000_82542_XOFFRXC E1000_XOFFRXC +#define E1000_82542_XOFFTXC E1000_XOFFTXC +#define E1000_82542_FCRUC E1000_FCRUC +#define E1000_82542_PRC64 E1000_PRC64 +#define E1000_82542_PRC127 E1000_PRC127 +#define E1000_82542_PRC255 E1000_PRC255 +#define E1000_82542_PRC511 E1000_PRC511 +#define E1000_82542_PRC1023 E1000_PRC1023 +#define E1000_82542_PRC1522 E1000_PRC1522 +#define E1000_82542_GPRC E1000_GPRC +#define E1000_82542_BPRC E1000_BPRC +#define E1000_82542_MPRC E1000_MPRC +#define E1000_82542_GPTC E1000_GPTC +#define E1000_82542_GORCL E1000_GORCL +#define E1000_82542_GORCH E1000_GORCH +#define E1000_82542_GOTCL E1000_GOTCL +#define E1000_82542_GOTCH E1000_GOTCH +#define E1000_82542_RNBC E1000_RNBC +#define E1000_82542_RUC E1000_RUC +#define E1000_82542_RFC E1000_RFC +#define E1000_82542_ROC E1000_ROC +#define E1000_82542_RJC E1000_RJC +#define E1000_82542_MGTPRC E1000_MGTPRC +#define E1000_82542_MGTPDC E1000_MGTPDC +#define E1000_82542_MGTPTC E1000_MGTPTC +#define E1000_82542_TORL E1000_TORL +#define E1000_82542_TORH E1000_TORH +#define E1000_82542_TOTL E1000_TOTL +#define E1000_82542_TOTH E1000_TOTH +#define E1000_82542_TPR E1000_TPR +#define E1000_82542_TPT E1000_TPT +#define E1000_82542_PTC64 E1000_PTC64 +#define E1000_82542_PTC127 E1000_PTC127 +#define E1000_82542_PTC255 E1000_PTC255 +#define E1000_82542_PTC511 E1000_PTC511 +#define E1000_82542_PTC1023 E1000_PTC1023 +#define E1000_82542_PTC1522 E1000_PTC1522 +#define E1000_82542_MPTC E1000_MPTC +#define E1000_82542_BPTC E1000_BPTC +#define E1000_82542_TSCTC E1000_TSCTC +#define E1000_82542_TSCTFC E1000_TSCTFC +#define E1000_82542_RXCSUM E1000_RXCSUM +#define E1000_82542_WUC E1000_WUC +#define E1000_82542_WUFC E1000_WUFC +#define E1000_82542_WUS E1000_WUS +#define E1000_82542_MANC E1000_MANC +#define E1000_82542_IPAV E1000_IPAV +#define E1000_82542_IP4AT E1000_IP4AT +#define E1000_82542_IP6AT E1000_IP6AT +#define E1000_82542_WUPL E1000_WUPL +#define E1000_82542_WUPM E1000_WUPM +#define E1000_82542_FFLT E1000_FFLT +#define E1000_82542_TDFH 0x08010 +#define E1000_82542_TDFT 0x08018 +#define E1000_82542_FFMT E1000_FFMT +#define E1000_82542_FFVT E1000_FFVT +#define E1000_82542_HOST_IF E1000_HOST_IF +#define E1000_82542_IAM E1000_IAM +#define E1000_82542_EEMNGCTL E1000_EEMNGCTL +#define E1000_82542_PSRCTL E1000_PSRCTL +#define E1000_82542_RAID E1000_RAID +#define E1000_82542_TARC0 E1000_TARC0 +#define E1000_82542_TDBAL1 E1000_TDBAL1 +#define E1000_82542_TDBAH1 E1000_TDBAH1 +#define E1000_82542_TDLEN1 E1000_TDLEN1 +#define E1000_82542_TDH1 E1000_TDH1 +#define E1000_82542_TDT1 E1000_TDT1 +#define E1000_82542_TXDCTL1 E1000_TXDCTL1 +#define E1000_82542_TARC1 E1000_TARC1 +#define E1000_82542_RFCTL E1000_RFCTL +#define E1000_82542_GCR E1000_GCR +#define E1000_82542_GSCL_1 E1000_GSCL_1 +#define E1000_82542_GSCL_2 E1000_GSCL_2 +#define E1000_82542_GSCL_3 E1000_GSCL_3 +#define E1000_82542_GSCL_4 E1000_GSCL_4 +#define E1000_82542_FACTPS E1000_FACTPS +#define E1000_82542_SWSM E1000_SWSM +#define E1000_82542_FWSM E1000_FWSM +#define E1000_82542_FFLT_DBG E1000_FFLT_DBG +#define E1000_82542_IAC E1000_IAC +#define E1000_82542_ICRXPTC E1000_ICRXPTC +#define E1000_82542_ICRXATC E1000_ICRXATC +#define E1000_82542_ICTXPTC E1000_ICTXPTC +#define E1000_82542_ICTXATC E1000_ICTXATC +#define E1000_82542_ICTXQEC E1000_ICTXQEC +#define E1000_82542_ICTXQMTC E1000_ICTXQMTC +#define E1000_82542_ICRXDMTC E1000_ICRXDMTC +#define E1000_82542_ICRXOC E1000_ICRXOC +#define E1000_82542_HICR E1000_HICR + +#define E1000_82542_CPUVEC E1000_CPUVEC +#define E1000_82542_MRQC E1000_MRQC +#define E1000_82542_RETA E1000_RETA +#define E1000_82542_RSSRK E1000_RSSRK +#define E1000_82542_RSSIM E1000_RSSIM +#define E1000_82542_RSSIR E1000_RSSIR +#define E1000_82542_KUMCTRLSTA E1000_KUMCTRLSTA +#define E1000_82542_SW_FW_SYNC E1000_SW_FW_SYNC + +/* Statistics counters collected by the MAC */ +struct e1000_hw_stats { + u64 crcerrs; + u64 algnerrc; + u64 symerrs; + u64 rxerrc; + u64 txerrc; + u64 mpc; + u64 scc; + u64 ecol; + u64 mcc; + u64 latecol; + u64 colc; + u64 dc; + u64 tncrs; + u64 sec; + u64 cexterr; + u64 rlec; + u64 xonrxc; + u64 xontxc; + u64 xoffrxc; + u64 xofftxc; + u64 fcruc; + u64 prc64; + u64 prc127; + u64 prc255; + u64 prc511; + u64 prc1023; + u64 prc1522; + u64 gprc; + u64 bprc; + u64 mprc; + u64 gptc; + u64 gorcl; + u64 gorch; + u64 gotcl; + u64 gotch; + u64 rnbc; + u64 ruc; + u64 rfc; + u64 roc; + u64 rlerrc; + u64 rjc; + u64 mgprc; + u64 mgpdc; + u64 mgptc; + u64 torl; + u64 torh; + u64 totl; + u64 toth; + u64 tpr; + u64 tpt; + u64 ptc64; + u64 ptc127; + u64 ptc255; + u64 ptc511; + u64 ptc1023; + u64 ptc1522; + u64 mptc; + u64 bptc; + u64 tsctc; + u64 tsctfc; + u64 iac; + u64 icrxptc; + u64 icrxatc; + u64 ictxptc; + u64 ictxatc; + u64 ictxqec; + u64 ictxqmtc; + u64 icrxdmtc; + u64 icrxoc; +}; + +/* Structure containing variables used by the shared code (e1000_hw.c) */ +struct e1000_hw { + u8 __iomem *hw_addr; + u8 __iomem *flash_address; + e1000_mac_type mac_type; + e1000_phy_type phy_type; + u32 phy_init_script; + e1000_media_type media_type; + void *back; + struct e1000_shadow_ram *eeprom_shadow_ram; + u32 flash_bank_size; + u32 flash_base_addr; + e1000_fc_type fc; + e1000_bus_speed bus_speed; + e1000_bus_width bus_width; + e1000_bus_type bus_type; + struct e1000_eeprom_info eeprom; + e1000_ms_type master_slave; + e1000_ms_type original_master_slave; + e1000_ffe_config ffe_config_state; + u32 asf_firmware_present; + u32 eeprom_semaphore_present; + unsigned long io_base; + u32 phy_id; + u32 phy_revision; + u32 phy_addr; + u32 original_fc; + u32 txcw; + u32 autoneg_failed; + u32 max_frame_size; + u32 min_frame_size; + u32 mc_filter_type; + u32 num_mc_addrs; + u32 collision_delta; + u32 tx_packet_delta; + u32 ledctl_default; + u32 ledctl_mode1; + u32 ledctl_mode2; + bool tx_pkt_filtering; + struct e1000_host_mng_dhcp_cookie mng_cookie; + u16 phy_spd_default; + u16 autoneg_advertised; + u16 pci_cmd_word; + u16 fc_high_water; + u16 fc_low_water; + u16 fc_pause_time; + u16 current_ifs_val; + u16 ifs_min_val; + u16 ifs_max_val; + u16 ifs_step_size; + u16 ifs_ratio; + u16 device_id; + u16 vendor_id; + u16 subsystem_id; + u16 subsystem_vendor_id; + u8 revision_id; + u8 autoneg; + u8 mdix; + u8 forced_speed_duplex; + u8 wait_autoneg_complete; + u8 dma_fairness; + u8 mac_addr[NODE_ADDRESS_SIZE]; + u8 perm_mac_addr[NODE_ADDRESS_SIZE]; + bool disable_polarity_correction; + bool speed_downgraded; + e1000_smart_speed smart_speed; + e1000_dsp_config dsp_config_state; + bool get_link_status; + bool serdes_has_link; + bool tbi_compatibility_en; + bool tbi_compatibility_on; + bool laa_is_present; + bool phy_reset_disable; + bool initialize_hw_bits_disable; + bool fc_send_xon; + bool fc_strict_ieee; + bool report_tx_early; + bool adaptive_ifs; + bool ifs_params_forced; + bool in_ifs_mode; + bool mng_reg_access_disabled; + bool leave_av_bit_off; + bool bad_tx_carr_stats_fd; + bool has_smbus; +}; + +#define E1000_EEPROM_SWDPIN0 0x0001 /* SWDPIN 0 EEPROM Value */ +#define E1000_EEPROM_LED_LOGIC 0x0020 /* Led Logic Word */ +#define E1000_EEPROM_RW_REG_DATA 16 /* Offset to data in EEPROM read/write registers */ +#define E1000_EEPROM_RW_REG_DONE 2 /* Offset to READ/WRITE done bit */ +#define E1000_EEPROM_RW_REG_START 1 /* First bit for telling part to start operation */ +#define E1000_EEPROM_RW_ADDR_SHIFT 2 /* Shift to the address bits */ +#define E1000_EEPROM_POLL_WRITE 1 /* Flag for polling for write complete */ +#define E1000_EEPROM_POLL_READ 0 /* Flag for polling for read complete */ +/* Register Bit Masks */ +/* Device Control */ +#define E1000_CTRL_FD 0x00000001 /* Full duplex.0=half; 1=full */ +#define E1000_CTRL_BEM 0x00000002 /* Endian Mode.0=little,1=big */ +#define E1000_CTRL_PRIOR 0x00000004 /* Priority on PCI. 0=rx,1=fair */ +#define E1000_CTRL_GIO_MASTER_DISABLE 0x00000004 /*Blocks new Master requests */ +#define E1000_CTRL_LRST 0x00000008 /* Link reset. 0=normal,1=reset */ +#define E1000_CTRL_TME 0x00000010 /* Test mode. 0=normal,1=test */ +#define E1000_CTRL_SLE 0x00000020 /* Serial Link on 0=dis,1=en */ +#define E1000_CTRL_ASDE 0x00000020 /* Auto-speed detect enable */ +#define E1000_CTRL_SLU 0x00000040 /* Set link up (Force Link) */ +#define E1000_CTRL_ILOS 0x00000080 /* Invert Loss-Of Signal */ +#define E1000_CTRL_SPD_SEL 0x00000300 /* Speed Select Mask */ +#define E1000_CTRL_SPD_10 0x00000000 /* Force 10Mb */ +#define E1000_CTRL_SPD_100 0x00000100 /* Force 100Mb */ +#define E1000_CTRL_SPD_1000 0x00000200 /* Force 1Gb */ +#define E1000_CTRL_BEM32 0x00000400 /* Big Endian 32 mode */ +#define E1000_CTRL_FRCSPD 0x00000800 /* Force Speed */ +#define E1000_CTRL_FRCDPX 0x00001000 /* Force Duplex */ +#define E1000_CTRL_D_UD_EN 0x00002000 /* Dock/Undock enable */ +#define E1000_CTRL_D_UD_POLARITY 0x00004000 /* Defined polarity of Dock/Undock indication in SDP[0] */ +#define E1000_CTRL_FORCE_PHY_RESET 0x00008000 /* Reset both PHY ports, through PHYRST_N pin */ +#define E1000_CTRL_EXT_LINK_EN 0x00010000 /* enable link status from external LINK_0 and LINK_1 pins */ +#define E1000_CTRL_SWDPIN0 0x00040000 /* SWDPIN 0 value */ +#define E1000_CTRL_SWDPIN1 0x00080000 /* SWDPIN 1 value */ +#define E1000_CTRL_SWDPIN2 0x00100000 /* SWDPIN 2 value */ +#define E1000_CTRL_SWDPIN3 0x00200000 /* SWDPIN 3 value */ +#define E1000_CTRL_SWDPIO0 0x00400000 /* SWDPIN 0 Input or output */ +#define E1000_CTRL_SWDPIO1 0x00800000 /* SWDPIN 1 input or output */ +#define E1000_CTRL_SWDPIO2 0x01000000 /* SWDPIN 2 input or output */ +#define E1000_CTRL_SWDPIO3 0x02000000 /* SWDPIN 3 input or output */ +#define E1000_CTRL_RST 0x04000000 /* Global reset */ +#define E1000_CTRL_RFCE 0x08000000 /* Receive Flow Control enable */ +#define E1000_CTRL_TFCE 0x10000000 /* Transmit flow control enable */ +#define E1000_CTRL_RTE 0x20000000 /* Routing tag enable */ +#define E1000_CTRL_VME 0x40000000 /* IEEE VLAN mode enable */ +#define E1000_CTRL_PHY_RST 0x80000000 /* PHY Reset */ +#define E1000_CTRL_SW2FW_INT 0x02000000 /* Initiate an interrupt to manageability engine */ + +/* Device Status */ +#define E1000_STATUS_FD 0x00000001 /* Full duplex.0=half,1=full */ +#define E1000_STATUS_LU 0x00000002 /* Link up.0=no,1=link */ +#define E1000_STATUS_FUNC_MASK 0x0000000C /* PCI Function Mask */ +#define E1000_STATUS_FUNC_SHIFT 2 +#define E1000_STATUS_FUNC_0 0x00000000 /* Function 0 */ +#define E1000_STATUS_FUNC_1 0x00000004 /* Function 1 */ +#define E1000_STATUS_TXOFF 0x00000010 /* transmission paused */ +#define E1000_STATUS_TBIMODE 0x00000020 /* TBI mode */ +#define E1000_STATUS_SPEED_MASK 0x000000C0 +#define E1000_STATUS_SPEED_10 0x00000000 /* Speed 10Mb/s */ +#define E1000_STATUS_SPEED_100 0x00000040 /* Speed 100Mb/s */ +#define E1000_STATUS_SPEED_1000 0x00000080 /* Speed 1000Mb/s */ +#define E1000_STATUS_LAN_INIT_DONE 0x00000200 /* Lan Init Completion + by EEPROM/Flash */ +#define E1000_STATUS_ASDV 0x00000300 /* Auto speed detect value */ +#define E1000_STATUS_DOCK_CI 0x00000800 /* Change in Dock/Undock state. Clear on write '0'. */ +#define E1000_STATUS_GIO_MASTER_ENABLE 0x00080000 /* Status of Master requests. */ +#define E1000_STATUS_MTXCKOK 0x00000400 /* MTX clock running OK */ +#define E1000_STATUS_PCI66 0x00000800 /* In 66Mhz slot */ +#define E1000_STATUS_BUS64 0x00001000 /* In 64 bit slot */ +#define E1000_STATUS_PCIX_MODE 0x00002000 /* PCI-X mode */ +#define E1000_STATUS_PCIX_SPEED 0x0000C000 /* PCI-X bus speed */ +#define E1000_STATUS_BMC_SKU_0 0x00100000 /* BMC USB redirect disabled */ +#define E1000_STATUS_BMC_SKU_1 0x00200000 /* BMC SRAM disabled */ +#define E1000_STATUS_BMC_SKU_2 0x00400000 /* BMC SDRAM disabled */ +#define E1000_STATUS_BMC_CRYPTO 0x00800000 /* BMC crypto disabled */ +#define E1000_STATUS_BMC_LITE 0x01000000 /* BMC external code execution disabled */ +#define E1000_STATUS_RGMII_ENABLE 0x02000000 /* RGMII disabled */ +#define E1000_STATUS_FUSE_8 0x04000000 +#define E1000_STATUS_FUSE_9 0x08000000 +#define E1000_STATUS_SERDES0_DIS 0x10000000 /* SERDES disabled on port 0 */ +#define E1000_STATUS_SERDES1_DIS 0x20000000 /* SERDES disabled on port 1 */ + +/* Constants used to interpret the masked PCI-X bus speed. */ +#define E1000_STATUS_PCIX_SPEED_66 0x00000000 /* PCI-X bus speed 50-66 MHz */ +#define E1000_STATUS_PCIX_SPEED_100 0x00004000 /* PCI-X bus speed 66-100 MHz */ +#define E1000_STATUS_PCIX_SPEED_133 0x00008000 /* PCI-X bus speed 100-133 MHz */ + +/* EEPROM/Flash Control */ +#define E1000_EECD_SK 0x00000001 /* EEPROM Clock */ +#define E1000_EECD_CS 0x00000002 /* EEPROM Chip Select */ +#define E1000_EECD_DI 0x00000004 /* EEPROM Data In */ +#define E1000_EECD_DO 0x00000008 /* EEPROM Data Out */ +#define E1000_EECD_FWE_MASK 0x00000030 +#define E1000_EECD_FWE_DIS 0x00000010 /* Disable FLASH writes */ +#define E1000_EECD_FWE_EN 0x00000020 /* Enable FLASH writes */ +#define E1000_EECD_FWE_SHIFT 4 +#define E1000_EECD_REQ 0x00000040 /* EEPROM Access Request */ +#define E1000_EECD_GNT 0x00000080 /* EEPROM Access Grant */ +#define E1000_EECD_PRES 0x00000100 /* EEPROM Present */ +#define E1000_EECD_SIZE 0x00000200 /* EEPROM Size (0=64 word 1=256 word) */ +#define E1000_EECD_ADDR_BITS 0x00000400 /* EEPROM Addressing bits based on type + * (0-small, 1-large) */ +#define E1000_EECD_TYPE 0x00002000 /* EEPROM Type (1-SPI, 0-Microwire) */ +#ifndef E1000_EEPROM_GRANT_ATTEMPTS +#define E1000_EEPROM_GRANT_ATTEMPTS 1000 /* EEPROM # attempts to gain grant */ +#endif +#define E1000_EECD_AUTO_RD 0x00000200 /* EEPROM Auto Read done */ +#define E1000_EECD_SIZE_EX_MASK 0x00007800 /* EEprom Size */ +#define E1000_EECD_SIZE_EX_SHIFT 11 +#define E1000_EECD_NVADDS 0x00018000 /* NVM Address Size */ +#define E1000_EECD_SELSHAD 0x00020000 /* Select Shadow RAM */ +#define E1000_EECD_INITSRAM 0x00040000 /* Initialize Shadow RAM */ +#define E1000_EECD_FLUPD 0x00080000 /* Update FLASH */ +#define E1000_EECD_AUPDEN 0x00100000 /* Enable Autonomous FLASH update */ +#define E1000_EECD_SHADV 0x00200000 /* Shadow RAM Data Valid */ +#define E1000_EECD_SEC1VAL 0x00400000 /* Sector One Valid */ +#define E1000_EECD_SECVAL_SHIFT 22 +#define E1000_STM_OPCODE 0xDB00 +#define E1000_HICR_FW_RESET 0xC0 + +#define E1000_SHADOW_RAM_WORDS 2048 +#define E1000_ICH_NVM_SIG_WORD 0x13 +#define E1000_ICH_NVM_SIG_MASK 0xC0 + +/* EEPROM Read */ +#define E1000_EERD_START 0x00000001 /* Start Read */ +#define E1000_EERD_DONE 0x00000010 /* Read Done */ +#define E1000_EERD_ADDR_SHIFT 8 +#define E1000_EERD_ADDR_MASK 0x0000FF00 /* Read Address */ +#define E1000_EERD_DATA_SHIFT 16 +#define E1000_EERD_DATA_MASK 0xFFFF0000 /* Read Data */ + +/* SPI EEPROM Status Register */ +#define EEPROM_STATUS_RDY_SPI 0x01 +#define EEPROM_STATUS_WEN_SPI 0x02 +#define EEPROM_STATUS_BP0_SPI 0x04 +#define EEPROM_STATUS_BP1_SPI 0x08 +#define EEPROM_STATUS_WPEN_SPI 0x80 + +/* Extended Device Control */ +#define E1000_CTRL_EXT_GPI0_EN 0x00000001 /* Maps SDP4 to GPI0 */ +#define E1000_CTRL_EXT_GPI1_EN 0x00000002 /* Maps SDP5 to GPI1 */ +#define E1000_CTRL_EXT_PHYINT_EN E1000_CTRL_EXT_GPI1_EN +#define E1000_CTRL_EXT_GPI2_EN 0x00000004 /* Maps SDP6 to GPI2 */ +#define E1000_CTRL_EXT_GPI3_EN 0x00000008 /* Maps SDP7 to GPI3 */ +#define E1000_CTRL_EXT_SDP4_DATA 0x00000010 /* Value of SW Defineable Pin 4 */ +#define E1000_CTRL_EXT_SDP5_DATA 0x00000020 /* Value of SW Defineable Pin 5 */ +#define E1000_CTRL_EXT_PHY_INT E1000_CTRL_EXT_SDP5_DATA +#define E1000_CTRL_EXT_SDP6_DATA 0x00000040 /* Value of SW Defineable Pin 6 */ +#define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */ +#define E1000_CTRL_EXT_SDP4_DIR 0x00000100 /* Direction of SDP4 0=in 1=out */ +#define E1000_CTRL_EXT_SDP5_DIR 0x00000200 /* Direction of SDP5 0=in 1=out */ +#define E1000_CTRL_EXT_SDP6_DIR 0x00000400 /* Direction of SDP6 0=in 1=out */ +#define E1000_CTRL_EXT_SDP7_DIR 0x00000800 /* Direction of SDP7 0=in 1=out */ +#define E1000_CTRL_EXT_ASDCHK 0x00001000 /* Initiate an ASD sequence */ +#define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */ +#define E1000_CTRL_EXT_IPS 0x00004000 /* Invert Power State */ +#define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */ +#define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */ +#define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000 +#define E1000_CTRL_EXT_LINK_MODE_TBI 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_KMRN 0x00000000 +#define E1000_CTRL_EXT_LINK_MODE_SERDES 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_SGMII 0x00800000 +#define E1000_CTRL_EXT_WR_WMARK_MASK 0x03000000 +#define E1000_CTRL_EXT_WR_WMARK_256 0x00000000 +#define E1000_CTRL_EXT_WR_WMARK_320 0x01000000 +#define E1000_CTRL_EXT_WR_WMARK_384 0x02000000 +#define E1000_CTRL_EXT_WR_WMARK_448 0x03000000 +#define E1000_CTRL_EXT_DRV_LOAD 0x10000000 /* Driver loaded bit for FW */ +#define E1000_CTRL_EXT_IAME 0x08000000 /* Interrupt acknowledge Auto-mask */ +#define E1000_CTRL_EXT_INT_TIMER_CLR 0x20000000 /* Clear Interrupt timers after IMS clear */ +#define E1000_CRTL_EXT_PB_PAREN 0x01000000 /* packet buffer parity error detection enabled */ +#define E1000_CTRL_EXT_DF_PAREN 0x02000000 /* descriptor FIFO parity error detection enable */ +#define E1000_CTRL_EXT_GHOST_PAREN 0x40000000 + +/* MDI Control */ +#define E1000_MDIC_DATA_MASK 0x0000FFFF +#define E1000_MDIC_REG_MASK 0x001F0000 +#define E1000_MDIC_REG_SHIFT 16 +#define E1000_MDIC_PHY_MASK 0x03E00000 +#define E1000_MDIC_PHY_SHIFT 21 +#define E1000_MDIC_OP_WRITE 0x04000000 +#define E1000_MDIC_OP_READ 0x08000000 +#define E1000_MDIC_READY 0x10000000 +#define E1000_MDIC_INT_EN 0x20000000 +#define E1000_MDIC_ERROR 0x40000000 + +#define E1000_KUMCTRLSTA_MASK 0x0000FFFF +#define E1000_KUMCTRLSTA_OFFSET 0x001F0000 +#define E1000_KUMCTRLSTA_OFFSET_SHIFT 16 +#define E1000_KUMCTRLSTA_REN 0x00200000 + +#define E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL 0x00000000 +#define E1000_KUMCTRLSTA_OFFSET_CTRL 0x00000001 +#define E1000_KUMCTRLSTA_OFFSET_INB_CTRL 0x00000002 +#define E1000_KUMCTRLSTA_OFFSET_DIAG 0x00000003 +#define E1000_KUMCTRLSTA_OFFSET_TIMEOUTS 0x00000004 +#define E1000_KUMCTRLSTA_OFFSET_INB_PARAM 0x00000009 +#define E1000_KUMCTRLSTA_OFFSET_HD_CTRL 0x00000010 +#define E1000_KUMCTRLSTA_OFFSET_M2P_SERDES 0x0000001E +#define E1000_KUMCTRLSTA_OFFSET_M2P_MODES 0x0000001F + +/* FIFO Control */ +#define E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS 0x00000008 +#define E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS 0x00000800 + +/* In-Band Control */ +#define E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT 0x00000500 +#define E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING 0x00000010 + +/* Half-Duplex Control */ +#define E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT 0x00000004 +#define E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT 0x00000000 + +#define E1000_KUMCTRLSTA_OFFSET_K0S_CTRL 0x0000001E + +#define E1000_KUMCTRLSTA_DIAG_FELPBK 0x2000 +#define E1000_KUMCTRLSTA_DIAG_NELPBK 0x1000 + +#define E1000_KUMCTRLSTA_K0S_100_EN 0x2000 +#define E1000_KUMCTRLSTA_K0S_GBE_EN 0x1000 +#define E1000_KUMCTRLSTA_K0S_ENTRY_LATENCY_MASK 0x0003 + +#define E1000_KABGTXD_BGSQLBIAS 0x00050000 + +#define E1000_PHY_CTRL_SPD_EN 0x00000001 +#define E1000_PHY_CTRL_D0A_LPLU 0x00000002 +#define E1000_PHY_CTRL_NOND0A_LPLU 0x00000004 +#define E1000_PHY_CTRL_NOND0A_GBE_DISABLE 0x00000008 +#define E1000_PHY_CTRL_GBE_DISABLE 0x00000040 +#define E1000_PHY_CTRL_B2B_EN 0x00000080 + +/* LED Control */ +#define E1000_LEDCTL_LED0_MODE_MASK 0x0000000F +#define E1000_LEDCTL_LED0_MODE_SHIFT 0 +#define E1000_LEDCTL_LED0_BLINK_RATE 0x0000020 +#define E1000_LEDCTL_LED0_IVRT 0x00000040 +#define E1000_LEDCTL_LED0_BLINK 0x00000080 +#define E1000_LEDCTL_LED1_MODE_MASK 0x00000F00 +#define E1000_LEDCTL_LED1_MODE_SHIFT 8 +#define E1000_LEDCTL_LED1_BLINK_RATE 0x0002000 +#define E1000_LEDCTL_LED1_IVRT 0x00004000 +#define E1000_LEDCTL_LED1_BLINK 0x00008000 +#define E1000_LEDCTL_LED2_MODE_MASK 0x000F0000 +#define E1000_LEDCTL_LED2_MODE_SHIFT 16 +#define E1000_LEDCTL_LED2_BLINK_RATE 0x00200000 +#define E1000_LEDCTL_LED2_IVRT 0x00400000 +#define E1000_LEDCTL_LED2_BLINK 0x00800000 +#define E1000_LEDCTL_LED3_MODE_MASK 0x0F000000 +#define E1000_LEDCTL_LED3_MODE_SHIFT 24 +#define E1000_LEDCTL_LED3_BLINK_RATE 0x20000000 +#define E1000_LEDCTL_LED3_IVRT 0x40000000 +#define E1000_LEDCTL_LED3_BLINK 0x80000000 + +#define E1000_LEDCTL_MODE_LINK_10_1000 0x0 +#define E1000_LEDCTL_MODE_LINK_100_1000 0x1 +#define E1000_LEDCTL_MODE_LINK_UP 0x2 +#define E1000_LEDCTL_MODE_ACTIVITY 0x3 +#define E1000_LEDCTL_MODE_LINK_ACTIVITY 0x4 +#define E1000_LEDCTL_MODE_LINK_10 0x5 +#define E1000_LEDCTL_MODE_LINK_100 0x6 +#define E1000_LEDCTL_MODE_LINK_1000 0x7 +#define E1000_LEDCTL_MODE_PCIX_MODE 0x8 +#define E1000_LEDCTL_MODE_FULL_DUPLEX 0x9 +#define E1000_LEDCTL_MODE_COLLISION 0xA +#define E1000_LEDCTL_MODE_BUS_SPEED 0xB +#define E1000_LEDCTL_MODE_BUS_SIZE 0xC +#define E1000_LEDCTL_MODE_PAUSED 0xD +#define E1000_LEDCTL_MODE_LED_ON 0xE +#define E1000_LEDCTL_MODE_LED_OFF 0xF + +/* Receive Address */ +#define E1000_RAH_AV 0x80000000 /* Receive descriptor valid */ + +/* Interrupt Cause Read */ +#define E1000_ICR_TXDW 0x00000001 /* Transmit desc written back */ +#define E1000_ICR_TXQE 0x00000002 /* Transmit Queue empty */ +#define E1000_ICR_LSC 0x00000004 /* Link Status Change */ +#define E1000_ICR_RXSEQ 0x00000008 /* rx sequence error */ +#define E1000_ICR_RXDMT0 0x00000010 /* rx desc min. threshold (0) */ +#define E1000_ICR_RXO 0x00000040 /* rx overrun */ +#define E1000_ICR_RXT0 0x00000080 /* rx timer intr (ring 0) */ +#define E1000_ICR_MDAC 0x00000200 /* MDIO access complete */ +#define E1000_ICR_RXCFG 0x00000400 /* RX /c/ ordered set */ +#define E1000_ICR_GPI_EN0 0x00000800 /* GP Int 0 */ +#define E1000_ICR_GPI_EN1 0x00001000 /* GP Int 1 */ +#define E1000_ICR_GPI_EN2 0x00002000 /* GP Int 2 */ +#define E1000_ICR_GPI_EN3 0x00004000 /* GP Int 3 */ +#define E1000_ICR_TXD_LOW 0x00008000 +#define E1000_ICR_SRPD 0x00010000 +#define E1000_ICR_ACK 0x00020000 /* Receive Ack frame */ +#define E1000_ICR_MNG 0x00040000 /* Manageability event */ +#define E1000_ICR_DOCK 0x00080000 /* Dock/Undock */ +#define E1000_ICR_INT_ASSERTED 0x80000000 /* If this bit asserted, the driver should claim the interrupt */ +#define E1000_ICR_RXD_FIFO_PAR0 0x00100000 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_ICR_TXD_FIFO_PAR0 0x00200000 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_ICR_HOST_ARB_PAR 0x00400000 /* host arb read buffer parity error */ +#define E1000_ICR_PB_PAR 0x00800000 /* packet buffer parity error */ +#define E1000_ICR_RXD_FIFO_PAR1 0x01000000 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_ICR_TXD_FIFO_PAR1 0x02000000 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_ICR_ALL_PARITY 0x03F00000 /* all parity error bits */ +#define E1000_ICR_DSW 0x00000020 /* FW changed the status of DISSW bit in the FWSM */ +#define E1000_ICR_PHYINT 0x00001000 /* LAN connected device generates an interrupt */ +#define E1000_ICR_EPRST 0x00100000 /* ME hardware reset occurs */ + +/* Interrupt Cause Set */ +#define E1000_ICS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_ICS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_ICS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_ICS_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_ICS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_ICS_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_ICS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_ICS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_ICS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_ICS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_ICS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_ICS_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_ICS_SRPD E1000_ICR_SRPD +#define E1000_ICS_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_ICS_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_ICS_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_ICS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_ICS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_ICS_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_ICS_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_ICS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_ICS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_ICS_DSW E1000_ICR_DSW +#define E1000_ICS_PHYINT E1000_ICR_PHYINT +#define E1000_ICS_EPRST E1000_ICR_EPRST + +/* Interrupt Mask Set */ +#define E1000_IMS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_IMS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_IMS_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_IMS_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_IMS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMS_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_IMS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_IMS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_IMS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_IMS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_IMS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_IMS_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_IMS_SRPD E1000_ICR_SRPD +#define E1000_IMS_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_IMS_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_IMS_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_IMS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_IMS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_IMS_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_IMS_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_IMS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_IMS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_IMS_DSW E1000_ICR_DSW +#define E1000_IMS_PHYINT E1000_ICR_PHYINT +#define E1000_IMS_EPRST E1000_ICR_EPRST + +/* Interrupt Mask Clear */ +#define E1000_IMC_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_IMC_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_IMC_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_IMC_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_IMC_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_IMC_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_IMC_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMC_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_IMC_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_IMC_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_IMC_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_IMC_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_IMC_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_IMC_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_IMC_SRPD E1000_ICR_SRPD +#define E1000_IMC_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_IMC_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_IMC_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_IMC_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_IMC_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_IMC_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_IMC_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_IMC_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_IMC_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_IMC_DSW E1000_ICR_DSW +#define E1000_IMC_PHYINT E1000_ICR_PHYINT +#define E1000_IMC_EPRST E1000_ICR_EPRST + +/* Receive Control */ +#define E1000_RCTL_RST 0x00000001 /* Software reset */ +#define E1000_RCTL_EN 0x00000002 /* enable */ +#define E1000_RCTL_SBP 0x00000004 /* store bad packet */ +#define E1000_RCTL_UPE 0x00000008 /* unicast promiscuous enable */ +#define E1000_RCTL_MPE 0x00000010 /* multicast promiscuous enab */ +#define E1000_RCTL_LPE 0x00000020 /* long packet enable */ +#define E1000_RCTL_LBM_NO 0x00000000 /* no loopback mode */ +#define E1000_RCTL_LBM_MAC 0x00000040 /* MAC loopback mode */ +#define E1000_RCTL_LBM_SLP 0x00000080 /* serial link loopback mode */ +#define E1000_RCTL_LBM_TCVR 0x000000C0 /* tcvr loopback mode */ +#define E1000_RCTL_DTYP_MASK 0x00000C00 /* Descriptor type mask */ +#define E1000_RCTL_DTYP_PS 0x00000400 /* Packet Split descriptor */ +#define E1000_RCTL_RDMTS_HALF 0x00000000 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_QUAT 0x00000100 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_EIGTH 0x00000200 /* rx desc min threshold size */ +#define E1000_RCTL_MO_SHIFT 12 /* multicast offset shift */ +#define E1000_RCTL_MO_0 0x00000000 /* multicast offset 11:0 */ +#define E1000_RCTL_MO_1 0x00001000 /* multicast offset 12:1 */ +#define E1000_RCTL_MO_2 0x00002000 /* multicast offset 13:2 */ +#define E1000_RCTL_MO_3 0x00003000 /* multicast offset 15:4 */ +#define E1000_RCTL_MDR 0x00004000 /* multicast desc ring 0 */ +#define E1000_RCTL_BAM 0x00008000 /* broadcast enable */ +/* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */ +#define E1000_RCTL_SZ_2048 0x00000000 /* rx buffer size 2048 */ +#define E1000_RCTL_SZ_1024 0x00010000 /* rx buffer size 1024 */ +#define E1000_RCTL_SZ_512 0x00020000 /* rx buffer size 512 */ +#define E1000_RCTL_SZ_256 0x00030000 /* rx buffer size 256 */ +/* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */ +#define E1000_RCTL_SZ_16384 0x00010000 /* rx buffer size 16384 */ +#define E1000_RCTL_SZ_8192 0x00020000 /* rx buffer size 8192 */ +#define E1000_RCTL_SZ_4096 0x00030000 /* rx buffer size 4096 */ +#define E1000_RCTL_VFE 0x00040000 /* vlan filter enable */ +#define E1000_RCTL_CFIEN 0x00080000 /* canonical form enable */ +#define E1000_RCTL_CFI 0x00100000 /* canonical form indicator */ +#define E1000_RCTL_DPF 0x00400000 /* discard pause frames */ +#define E1000_RCTL_PMCF 0x00800000 /* pass MAC control frames */ +#define E1000_RCTL_BSEX 0x02000000 /* Buffer size extension */ +#define E1000_RCTL_SECRC 0x04000000 /* Strip Ethernet CRC */ +#define E1000_RCTL_FLXBUF_MASK 0x78000000 /* Flexible buffer size */ +#define E1000_RCTL_FLXBUF_SHIFT 27 /* Flexible buffer shift */ + +/* Use byte values for the following shift parameters + * Usage: + * psrctl |= (((ROUNDUP(value0, 128) >> E1000_PSRCTL_BSIZE0_SHIFT) & + * E1000_PSRCTL_BSIZE0_MASK) | + * ((ROUNDUP(value1, 1024) >> E1000_PSRCTL_BSIZE1_SHIFT) & + * E1000_PSRCTL_BSIZE1_MASK) | + * ((ROUNDUP(value2, 1024) << E1000_PSRCTL_BSIZE2_SHIFT) & + * E1000_PSRCTL_BSIZE2_MASK) | + * ((ROUNDUP(value3, 1024) << E1000_PSRCTL_BSIZE3_SHIFT) |; + * E1000_PSRCTL_BSIZE3_MASK)) + * where value0 = [128..16256], default=256 + * value1 = [1024..64512], default=4096 + * value2 = [0..64512], default=4096 + * value3 = [0..64512], default=0 + */ + +#define E1000_PSRCTL_BSIZE0_MASK 0x0000007F +#define E1000_PSRCTL_BSIZE1_MASK 0x00003F00 +#define E1000_PSRCTL_BSIZE2_MASK 0x003F0000 +#define E1000_PSRCTL_BSIZE3_MASK 0x3F000000 + +#define E1000_PSRCTL_BSIZE0_SHIFT 7 /* Shift _right_ 7 */ +#define E1000_PSRCTL_BSIZE1_SHIFT 2 /* Shift _right_ 2 */ +#define E1000_PSRCTL_BSIZE2_SHIFT 6 /* Shift _left_ 6 */ +#define E1000_PSRCTL_BSIZE3_SHIFT 14 /* Shift _left_ 14 */ + +/* SW_W_SYNC definitions */ +#define E1000_SWFW_EEP_SM 0x0001 +#define E1000_SWFW_PHY0_SM 0x0002 +#define E1000_SWFW_PHY1_SM 0x0004 +#define E1000_SWFW_MAC_CSR_SM 0x0008 + +/* Receive Descriptor */ +#define E1000_RDT_DELAY 0x0000ffff /* Delay timer (1=1024us) */ +#define E1000_RDT_FPDB 0x80000000 /* Flush descriptor block */ +#define E1000_RDLEN_LEN 0x0007ff80 /* descriptor length */ +#define E1000_RDH_RDH 0x0000ffff /* receive descriptor head */ +#define E1000_RDT_RDT 0x0000ffff /* receive descriptor tail */ + +/* Flow Control */ +#define E1000_FCRTH_RTH 0x0000FFF8 /* Mask Bits[15:3] for RTH */ +#define E1000_FCRTH_XFCE 0x80000000 /* External Flow Control Enable */ +#define E1000_FCRTL_RTL 0x0000FFF8 /* Mask Bits[15:3] for RTL */ +#define E1000_FCRTL_XONE 0x80000000 /* Enable XON frame transmission */ + +/* Header split receive */ +#define E1000_RFCTL_ISCSI_DIS 0x00000001 +#define E1000_RFCTL_ISCSI_DWC_MASK 0x0000003E +#define E1000_RFCTL_ISCSI_DWC_SHIFT 1 +#define E1000_RFCTL_NFSW_DIS 0x00000040 +#define E1000_RFCTL_NFSR_DIS 0x00000080 +#define E1000_RFCTL_NFS_VER_MASK 0x00000300 +#define E1000_RFCTL_NFS_VER_SHIFT 8 +#define E1000_RFCTL_IPV6_DIS 0x00000400 +#define E1000_RFCTL_IPV6_XSUM_DIS 0x00000800 +#define E1000_RFCTL_ACK_DIS 0x00001000 +#define E1000_RFCTL_ACKD_DIS 0x00002000 +#define E1000_RFCTL_IPFRSP_DIS 0x00004000 +#define E1000_RFCTL_EXTEN 0x00008000 +#define E1000_RFCTL_IPV6_EX_DIS 0x00010000 +#define E1000_RFCTL_NEW_IPV6_EXT_DIS 0x00020000 + +/* Receive Descriptor Control */ +#define E1000_RXDCTL_PTHRESH 0x0000003F /* RXDCTL Prefetch Threshold */ +#define E1000_RXDCTL_HTHRESH 0x00003F00 /* RXDCTL Host Threshold */ +#define E1000_RXDCTL_WTHRESH 0x003F0000 /* RXDCTL Writeback Threshold */ +#define E1000_RXDCTL_GRAN 0x01000000 /* RXDCTL Granularity */ + +/* Transmit Descriptor Control */ +#define E1000_TXDCTL_PTHRESH 0x0000003F /* TXDCTL Prefetch Threshold */ +#define E1000_TXDCTL_HTHRESH 0x00003F00 /* TXDCTL Host Threshold */ +#define E1000_TXDCTL_WTHRESH 0x003F0000 /* TXDCTL Writeback Threshold */ +#define E1000_TXDCTL_GRAN 0x01000000 /* TXDCTL Granularity */ +#define E1000_TXDCTL_LWTHRESH 0xFE000000 /* TXDCTL Low Threshold */ +#define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000 /* GRAN=1, WTHRESH=1 */ +#define E1000_TXDCTL_COUNT_DESC 0x00400000 /* Enable the counting of desc. + still to be processed. */ +/* Transmit Configuration Word */ +#define E1000_TXCW_FD 0x00000020 /* TXCW full duplex */ +#define E1000_TXCW_HD 0x00000040 /* TXCW half duplex */ +#define E1000_TXCW_PAUSE 0x00000080 /* TXCW sym pause request */ +#define E1000_TXCW_ASM_DIR 0x00000100 /* TXCW astm pause direction */ +#define E1000_TXCW_PAUSE_MASK 0x00000180 /* TXCW pause request mask */ +#define E1000_TXCW_RF 0x00003000 /* TXCW remote fault */ +#define E1000_TXCW_NP 0x00008000 /* TXCW next page */ +#define E1000_TXCW_CW 0x0000ffff /* TxConfigWord mask */ +#define E1000_TXCW_TXC 0x40000000 /* Transmit Config control */ +#define E1000_TXCW_ANE 0x80000000 /* Auto-neg enable */ + +/* Receive Configuration Word */ +#define E1000_RXCW_CW 0x0000ffff /* RxConfigWord mask */ +#define E1000_RXCW_NC 0x04000000 /* Receive config no carrier */ +#define E1000_RXCW_IV 0x08000000 /* Receive config invalid */ +#define E1000_RXCW_CC 0x10000000 /* Receive config change */ +#define E1000_RXCW_C 0x20000000 /* Receive config */ +#define E1000_RXCW_SYNCH 0x40000000 /* Receive config synch */ +#define E1000_RXCW_ANC 0x80000000 /* Auto-neg complete */ + +/* Transmit Control */ +#define E1000_TCTL_RST 0x00000001 /* software reset */ +#define E1000_TCTL_EN 0x00000002 /* enable tx */ +#define E1000_TCTL_BCE 0x00000004 /* busy check enable */ +#define E1000_TCTL_PSP 0x00000008 /* pad short packets */ +#define E1000_TCTL_CT 0x00000ff0 /* collision threshold */ +#define E1000_TCTL_COLD 0x003ff000 /* collision distance */ +#define E1000_TCTL_SWXOFF 0x00400000 /* SW Xoff transmission */ +#define E1000_TCTL_PBE 0x00800000 /* Packet Burst Enable */ +#define E1000_TCTL_RTLC 0x01000000 /* Re-transmit on late collision */ +#define E1000_TCTL_NRTU 0x02000000 /* No Re-transmit on underrun */ +#define E1000_TCTL_MULR 0x10000000 /* Multiple request support */ +/* Extended Transmit Control */ +#define E1000_TCTL_EXT_BST_MASK 0x000003FF /* Backoff Slot Time */ +#define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */ + +/* Receive Checksum Control */ +#define E1000_RXCSUM_PCSS_MASK 0x000000FF /* Packet Checksum Start */ +#define E1000_RXCSUM_IPOFL 0x00000100 /* IPv4 checksum offload */ +#define E1000_RXCSUM_TUOFL 0x00000200 /* TCP / UDP checksum offload */ +#define E1000_RXCSUM_IPV6OFL 0x00000400 /* IPv6 checksum offload */ +#define E1000_RXCSUM_IPPCSE 0x00001000 /* IP payload checksum enable */ +#define E1000_RXCSUM_PCSD 0x00002000 /* packet checksum disabled */ + +/* Multiple Receive Queue Control */ +#define E1000_MRQC_ENABLE_MASK 0x00000003 +#define E1000_MRQC_ENABLE_RSS_2Q 0x00000001 +#define E1000_MRQC_ENABLE_RSS_INT 0x00000004 +#define E1000_MRQC_RSS_FIELD_MASK 0xFFFF0000 +#define E1000_MRQC_RSS_FIELD_IPV4_TCP 0x00010000 +#define E1000_MRQC_RSS_FIELD_IPV4 0x00020000 +#define E1000_MRQC_RSS_FIELD_IPV6_TCP_EX 0x00040000 +#define E1000_MRQC_RSS_FIELD_IPV6_EX 0x00080000 +#define E1000_MRQC_RSS_FIELD_IPV6 0x00100000 +#define E1000_MRQC_RSS_FIELD_IPV6_TCP 0x00200000 + +/* Definitions for power management and wakeup registers */ +/* Wake Up Control */ +#define E1000_WUC_APME 0x00000001 /* APM Enable */ +#define E1000_WUC_PME_EN 0x00000002 /* PME Enable */ +#define E1000_WUC_PME_STATUS 0x00000004 /* PME Status */ +#define E1000_WUC_APMPME 0x00000008 /* Assert PME on APM Wakeup */ +#define E1000_WUC_SPM 0x80000000 /* Enable SPM */ + +/* Wake Up Filter Control */ +#define E1000_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */ +#define E1000_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */ +#define E1000_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */ +#define E1000_WUFC_MC 0x00000008 /* Directed Multicast Wakeup Enable */ +#define E1000_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */ +#define E1000_WUFC_ARP 0x00000020 /* ARP Request Packet Wakeup Enable */ +#define E1000_WUFC_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Enable */ +#define E1000_WUFC_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Enable */ +#define E1000_WUFC_IGNORE_TCO 0x00008000 /* Ignore WakeOn TCO packets */ +#define E1000_WUFC_FLX0 0x00010000 /* Flexible Filter 0 Enable */ +#define E1000_WUFC_FLX1 0x00020000 /* Flexible Filter 1 Enable */ +#define E1000_WUFC_FLX2 0x00040000 /* Flexible Filter 2 Enable */ +#define E1000_WUFC_FLX3 0x00080000 /* Flexible Filter 3 Enable */ +#define E1000_WUFC_ALL_FILTERS 0x000F00FF /* Mask for all wakeup filters */ +#define E1000_WUFC_FLX_OFFSET 16 /* Offset to the Flexible Filters bits */ +#define E1000_WUFC_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */ + +/* Wake Up Status */ +#define E1000_WUS_LNKC 0x00000001 /* Link Status Changed */ +#define E1000_WUS_MAG 0x00000002 /* Magic Packet Received */ +#define E1000_WUS_EX 0x00000004 /* Directed Exact Received */ +#define E1000_WUS_MC 0x00000008 /* Directed Multicast Received */ +#define E1000_WUS_BC 0x00000010 /* Broadcast Received */ +#define E1000_WUS_ARP 0x00000020 /* ARP Request Packet Received */ +#define E1000_WUS_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Received */ +#define E1000_WUS_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Received */ +#define E1000_WUS_FLX0 0x00010000 /* Flexible Filter 0 Match */ +#define E1000_WUS_FLX1 0x00020000 /* Flexible Filter 1 Match */ +#define E1000_WUS_FLX2 0x00040000 /* Flexible Filter 2 Match */ +#define E1000_WUS_FLX3 0x00080000 /* Flexible Filter 3 Match */ +#define E1000_WUS_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */ + +/* Management Control */ +#define E1000_MANC_SMBUS_EN 0x00000001 /* SMBus Enabled - RO */ +#define E1000_MANC_ASF_EN 0x00000002 /* ASF Enabled - RO */ +#define E1000_MANC_R_ON_FORCE 0x00000004 /* Reset on Force TCO - RO */ +#define E1000_MANC_RMCP_EN 0x00000100 /* Enable RCMP 026Fh Filtering */ +#define E1000_MANC_0298_EN 0x00000200 /* Enable RCMP 0298h Filtering */ +#define E1000_MANC_IPV4_EN 0x00000400 /* Enable IPv4 */ +#define E1000_MANC_IPV6_EN 0x00000800 /* Enable IPv6 */ +#define E1000_MANC_SNAP_EN 0x00001000 /* Accept LLC/SNAP */ +#define E1000_MANC_ARP_EN 0x00002000 /* Enable ARP Request Filtering */ +#define E1000_MANC_NEIGHBOR_EN 0x00004000 /* Enable Neighbor Discovery + * Filtering */ +#define E1000_MANC_ARP_RES_EN 0x00008000 /* Enable ARP response Filtering */ +#define E1000_MANC_TCO_RESET 0x00010000 /* TCO Reset Occurred */ +#define E1000_MANC_RCV_TCO_EN 0x00020000 /* Receive TCO Packets Enabled */ +#define E1000_MANC_REPORT_STATUS 0x00040000 /* Status Reporting Enabled */ +#define E1000_MANC_RCV_ALL 0x00080000 /* Receive All Enabled */ +#define E1000_MANC_BLK_PHY_RST_ON_IDE 0x00040000 /* Block phy resets */ +#define E1000_MANC_EN_MAC_ADDR_FILTER 0x00100000 /* Enable MAC address + * filtering */ +#define E1000_MANC_EN_MNG2HOST 0x00200000 /* Enable MNG packets to host + * memory */ +#define E1000_MANC_EN_IP_ADDR_FILTER 0x00400000 /* Enable IP address + * filtering */ +#define E1000_MANC_EN_XSUM_FILTER 0x00800000 /* Enable checksum filtering */ +#define E1000_MANC_BR_EN 0x01000000 /* Enable broadcast filtering */ +#define E1000_MANC_SMB_REQ 0x01000000 /* SMBus Request */ +#define E1000_MANC_SMB_GNT 0x02000000 /* SMBus Grant */ +#define E1000_MANC_SMB_CLK_IN 0x04000000 /* SMBus Clock In */ +#define E1000_MANC_SMB_DATA_IN 0x08000000 /* SMBus Data In */ +#define E1000_MANC_SMB_DATA_OUT 0x10000000 /* SMBus Data Out */ +#define E1000_MANC_SMB_CLK_OUT 0x20000000 /* SMBus Clock Out */ + +#define E1000_MANC_SMB_DATA_OUT_SHIFT 28 /* SMBus Data Out Shift */ +#define E1000_MANC_SMB_CLK_OUT_SHIFT 29 /* SMBus Clock Out Shift */ + +/* SW Semaphore Register */ +#define E1000_SWSM_SMBI 0x00000001 /* Driver Semaphore bit */ +#define E1000_SWSM_SWESMBI 0x00000002 /* FW Semaphore bit */ +#define E1000_SWSM_WMNG 0x00000004 /* Wake MNG Clock */ +#define E1000_SWSM_DRV_LOAD 0x00000008 /* Driver Loaded Bit */ + +/* FW Semaphore Register */ +#define E1000_FWSM_MODE_MASK 0x0000000E /* FW mode */ +#define E1000_FWSM_MODE_SHIFT 1 +#define E1000_FWSM_FW_VALID 0x00008000 /* FW established a valid mode */ + +#define E1000_FWSM_RSPCIPHY 0x00000040 /* Reset PHY on PCI reset */ +#define E1000_FWSM_DISSW 0x10000000 /* FW disable SW Write Access */ +#define E1000_FWSM_SKUSEL_MASK 0x60000000 /* LAN SKU select */ +#define E1000_FWSM_SKUEL_SHIFT 29 +#define E1000_FWSM_SKUSEL_EMB 0x0 /* Embedded SKU */ +#define E1000_FWSM_SKUSEL_CONS 0x1 /* Consumer SKU */ +#define E1000_FWSM_SKUSEL_PERF_100 0x2 /* Perf & Corp 10/100 SKU */ +#define E1000_FWSM_SKUSEL_PERF_GBE 0x3 /* Perf & Copr GbE SKU */ + +/* FFLT Debug Register */ +#define E1000_FFLT_DBG_INVC 0x00100000 /* Invalid /C/ code handling */ + +typedef enum { + e1000_mng_mode_none = 0, + e1000_mng_mode_asf, + e1000_mng_mode_pt, + e1000_mng_mode_ipmi, + e1000_mng_mode_host_interface_only +} e1000_mng_mode; + +/* Host Interface Control Register */ +#define E1000_HICR_EN 0x00000001 /* Enable Bit - RO */ +#define E1000_HICR_C 0x00000002 /* Driver sets this bit when done + * to put command in RAM */ +#define E1000_HICR_SV 0x00000004 /* Status Validity */ +#define E1000_HICR_FWR 0x00000080 /* FW reset. Set by the Host */ + +/* Host Interface Command Interface - Address range 0x8800-0x8EFF */ +#define E1000_HI_MAX_DATA_LENGTH 252 /* Host Interface data length */ +#define E1000_HI_MAX_BLOCK_BYTE_LENGTH 1792 /* Number of bytes in range */ +#define E1000_HI_MAX_BLOCK_DWORD_LENGTH 448 /* Number of dwords in range */ +#define E1000_HI_COMMAND_TIMEOUT 500 /* Time in ms to process HI command */ + +struct e1000_host_command_header { + u8 command_id; + u8 command_length; + u8 command_options; /* I/F bits for command, status for return */ + u8 checksum; +}; +struct e1000_host_command_info { + struct e1000_host_command_header command_header; /* Command Head/Command Result Head has 4 bytes */ + u8 command_data[E1000_HI_MAX_DATA_LENGTH]; /* Command data can length 0..252 */ +}; + +/* Host SMB register #0 */ +#define E1000_HSMC0R_CLKIN 0x00000001 /* SMB Clock in */ +#define E1000_HSMC0R_DATAIN 0x00000002 /* SMB Data in */ +#define E1000_HSMC0R_DATAOUT 0x00000004 /* SMB Data out */ +#define E1000_HSMC0R_CLKOUT 0x00000008 /* SMB Clock out */ + +/* Host SMB register #1 */ +#define E1000_HSMC1R_CLKIN E1000_HSMC0R_CLKIN +#define E1000_HSMC1R_DATAIN E1000_HSMC0R_DATAIN +#define E1000_HSMC1R_DATAOUT E1000_HSMC0R_DATAOUT +#define E1000_HSMC1R_CLKOUT E1000_HSMC0R_CLKOUT + +/* FW Status Register */ +#define E1000_FWSTS_FWS_MASK 0x000000FF /* FW Status */ + +/* Wake Up Packet Length */ +#define E1000_WUPL_LENGTH_MASK 0x0FFF /* Only the lower 12 bits are valid */ + +#define E1000_MDALIGN 4096 + +/* PCI-Ex registers*/ + +/* PCI-Ex Control Register */ +#define E1000_GCR_RXD_NO_SNOOP 0x00000001 +#define E1000_GCR_RXDSCW_NO_SNOOP 0x00000002 +#define E1000_GCR_RXDSCR_NO_SNOOP 0x00000004 +#define E1000_GCR_TXD_NO_SNOOP 0x00000008 +#define E1000_GCR_TXDSCW_NO_SNOOP 0x00000010 +#define E1000_GCR_TXDSCR_NO_SNOOP 0x00000020 + +#define PCI_EX_NO_SNOOP_ALL (E1000_GCR_RXD_NO_SNOOP | \ + E1000_GCR_RXDSCW_NO_SNOOP | \ + E1000_GCR_RXDSCR_NO_SNOOP | \ + E1000_GCR_TXD_NO_SNOOP | \ + E1000_GCR_TXDSCW_NO_SNOOP | \ + E1000_GCR_TXDSCR_NO_SNOOP) + +#define PCI_EX_82566_SNOOP_ALL PCI_EX_NO_SNOOP_ALL + +#define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000 +/* Function Active and Power State to MNG */ +#define E1000_FACTPS_FUNC0_POWER_STATE_MASK 0x00000003 +#define E1000_FACTPS_LAN0_VALID 0x00000004 +#define E1000_FACTPS_FUNC0_AUX_EN 0x00000008 +#define E1000_FACTPS_FUNC1_POWER_STATE_MASK 0x000000C0 +#define E1000_FACTPS_FUNC1_POWER_STATE_SHIFT 6 +#define E1000_FACTPS_LAN1_VALID 0x00000100 +#define E1000_FACTPS_FUNC1_AUX_EN 0x00000200 +#define E1000_FACTPS_FUNC2_POWER_STATE_MASK 0x00003000 +#define E1000_FACTPS_FUNC2_POWER_STATE_SHIFT 12 +#define E1000_FACTPS_IDE_ENABLE 0x00004000 +#define E1000_FACTPS_FUNC2_AUX_EN 0x00008000 +#define E1000_FACTPS_FUNC3_POWER_STATE_MASK 0x000C0000 +#define E1000_FACTPS_FUNC3_POWER_STATE_SHIFT 18 +#define E1000_FACTPS_SP_ENABLE 0x00100000 +#define E1000_FACTPS_FUNC3_AUX_EN 0x00200000 +#define E1000_FACTPS_FUNC4_POWER_STATE_MASK 0x03000000 +#define E1000_FACTPS_FUNC4_POWER_STATE_SHIFT 24 +#define E1000_FACTPS_IPMI_ENABLE 0x04000000 +#define E1000_FACTPS_FUNC4_AUX_EN 0x08000000 +#define E1000_FACTPS_MNGCG 0x20000000 +#define E1000_FACTPS_LAN_FUNC_SEL 0x40000000 +#define E1000_FACTPS_PM_STATE_CHANGED 0x80000000 + +/* PCI-Ex Config Space */ +#define PCI_EX_LINK_STATUS 0x12 +#define PCI_EX_LINK_WIDTH_MASK 0x3F0 +#define PCI_EX_LINK_WIDTH_SHIFT 4 + +/* EEPROM Commands - Microwire */ +#define EEPROM_READ_OPCODE_MICROWIRE 0x6 /* EEPROM read opcode */ +#define EEPROM_WRITE_OPCODE_MICROWIRE 0x5 /* EEPROM write opcode */ +#define EEPROM_ERASE_OPCODE_MICROWIRE 0x7 /* EEPROM erase opcode */ +#define EEPROM_EWEN_OPCODE_MICROWIRE 0x13 /* EEPROM erase/write enable */ +#define EEPROM_EWDS_OPCODE_MICROWIRE 0x10 /* EEPROM erase/write disable */ + +/* EEPROM Commands - SPI */ +#define EEPROM_MAX_RETRY_SPI 5000 /* Max wait of 5ms, for RDY signal */ +#define EEPROM_READ_OPCODE_SPI 0x03 /* EEPROM read opcode */ +#define EEPROM_WRITE_OPCODE_SPI 0x02 /* EEPROM write opcode */ +#define EEPROM_A8_OPCODE_SPI 0x08 /* opcode bit-3 = address bit-8 */ +#define EEPROM_WREN_OPCODE_SPI 0x06 /* EEPROM set Write Enable latch */ +#define EEPROM_WRDI_OPCODE_SPI 0x04 /* EEPROM reset Write Enable latch */ +#define EEPROM_RDSR_OPCODE_SPI 0x05 /* EEPROM read Status register */ +#define EEPROM_WRSR_OPCODE_SPI 0x01 /* EEPROM write Status register */ +#define EEPROM_ERASE4K_OPCODE_SPI 0x20 /* EEPROM ERASE 4KB */ +#define EEPROM_ERASE64K_OPCODE_SPI 0xD8 /* EEPROM ERASE 64KB */ +#define EEPROM_ERASE256_OPCODE_SPI 0xDB /* EEPROM ERASE 256B */ + +/* EEPROM Size definitions */ +#define EEPROM_WORD_SIZE_SHIFT 6 +#define EEPROM_SIZE_SHIFT 10 +#define EEPROM_SIZE_MASK 0x1C00 + +/* EEPROM Word Offsets */ +#define EEPROM_COMPAT 0x0003 +#define EEPROM_ID_LED_SETTINGS 0x0004 +#define EEPROM_VERSION 0x0005 +#define EEPROM_SERDES_AMPLITUDE 0x0006 /* For SERDES output amplitude adjustment. */ +#define EEPROM_PHY_CLASS_WORD 0x0007 +#define EEPROM_INIT_CONTROL1_REG 0x000A +#define EEPROM_INIT_CONTROL2_REG 0x000F +#define EEPROM_SWDEF_PINS_CTRL_PORT_1 0x0010 +#define EEPROM_INIT_CONTROL3_PORT_B 0x0014 +#define EEPROM_INIT_3GIO_3 0x001A +#define EEPROM_SWDEF_PINS_CTRL_PORT_0 0x0020 +#define EEPROM_INIT_CONTROL3_PORT_A 0x0024 +#define EEPROM_CFG 0x0012 +#define EEPROM_FLASH_VERSION 0x0032 +#define EEPROM_CHECKSUM_REG 0x003F + +#define E1000_EEPROM_CFG_DONE 0x00040000 /* MNG config cycle done */ +#define E1000_EEPROM_CFG_DONE_PORT_1 0x00080000 /* ...for second port */ + +/* Word definitions for ID LED Settings */ +#define ID_LED_RESERVED_0000 0x0000 +#define ID_LED_RESERVED_FFFF 0xFFFF +#define ID_LED_DEFAULT ((ID_LED_OFF1_ON2 << 12) | \ + (ID_LED_OFF1_OFF2 << 8) | \ + (ID_LED_DEF1_DEF2 << 4) | \ + (ID_LED_DEF1_DEF2)) +#define ID_LED_DEF1_DEF2 0x1 +#define ID_LED_DEF1_ON2 0x2 +#define ID_LED_DEF1_OFF2 0x3 +#define ID_LED_ON1_DEF2 0x4 +#define ID_LED_ON1_ON2 0x5 +#define ID_LED_ON1_OFF2 0x6 +#define ID_LED_OFF1_DEF2 0x7 +#define ID_LED_OFF1_ON2 0x8 +#define ID_LED_OFF1_OFF2 0x9 + +#define IGP_ACTIVITY_LED_MASK 0xFFFFF0FF +#define IGP_ACTIVITY_LED_ENABLE 0x0300 +#define IGP_LED3_MODE 0x07000000 + +/* Mask bits for SERDES amplitude adjustment in Word 6 of the EEPROM */ +#define EEPROM_SERDES_AMPLITUDE_MASK 0x000F + +/* Mask bit for PHY class in Word 7 of the EEPROM */ +#define EEPROM_PHY_CLASS_A 0x8000 + +/* Mask bits for fields in Word 0x0a of the EEPROM */ +#define EEPROM_WORD0A_ILOS 0x0010 +#define EEPROM_WORD0A_SWDPIO 0x01E0 +#define EEPROM_WORD0A_LRST 0x0200 +#define EEPROM_WORD0A_FD 0x0400 +#define EEPROM_WORD0A_66MHZ 0x0800 + +/* Mask bits for fields in Word 0x0f of the EEPROM */ +#define EEPROM_WORD0F_PAUSE_MASK 0x3000 +#define EEPROM_WORD0F_PAUSE 0x1000 +#define EEPROM_WORD0F_ASM_DIR 0x2000 +#define EEPROM_WORD0F_ANE 0x0800 +#define EEPROM_WORD0F_SWPDIO_EXT 0x00F0 +#define EEPROM_WORD0F_LPLU 0x0001 + +/* Mask bits for fields in Word 0x10/0x20 of the EEPROM */ +#define EEPROM_WORD1020_GIGA_DISABLE 0x0010 +#define EEPROM_WORD1020_GIGA_DISABLE_NON_D0A 0x0008 + +/* Mask bits for fields in Word 0x1a of the EEPROM */ +#define EEPROM_WORD1A_ASPM_MASK 0x000C + +/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */ +#define EEPROM_SUM 0xBABA + +/* EEPROM Map defines (WORD OFFSETS)*/ +#define EEPROM_NODE_ADDRESS_BYTE_0 0 +#define EEPROM_PBA_BYTE_1 8 + +#define EEPROM_RESERVED_WORD 0xFFFF + +/* EEPROM Map Sizes (Byte Counts) */ +#define PBA_SIZE 4 + +/* Collision related configuration parameters */ +#define E1000_COLLISION_THRESHOLD 15 +#define E1000_CT_SHIFT 4 +/* Collision distance is a 0-based value that applies to + * half-duplex-capable hardware only. */ +#define E1000_COLLISION_DISTANCE 63 +#define E1000_COLLISION_DISTANCE_82542 64 +#define E1000_FDX_COLLISION_DISTANCE E1000_COLLISION_DISTANCE +#define E1000_HDX_COLLISION_DISTANCE E1000_COLLISION_DISTANCE +#define E1000_COLD_SHIFT 12 + +/* Number of Transmit and Receive Descriptors must be a multiple of 8 */ +#define REQ_TX_DESCRIPTOR_MULTIPLE 8 +#define REQ_RX_DESCRIPTOR_MULTIPLE 8 + +/* Default values for the transmit IPG register */ +#define DEFAULT_82542_TIPG_IPGT 10 +#define DEFAULT_82543_TIPG_IPGT_FIBER 9 +#define DEFAULT_82543_TIPG_IPGT_COPPER 8 + +#define E1000_TIPG_IPGT_MASK 0x000003FF +#define E1000_TIPG_IPGR1_MASK 0x000FFC00 +#define E1000_TIPG_IPGR2_MASK 0x3FF00000 + +#define DEFAULT_82542_TIPG_IPGR1 2 +#define DEFAULT_82543_TIPG_IPGR1 8 +#define E1000_TIPG_IPGR1_SHIFT 10 + +#define DEFAULT_82542_TIPG_IPGR2 10 +#define DEFAULT_82543_TIPG_IPGR2 6 +#define E1000_TIPG_IPGR2_SHIFT 20 + +#define E1000_TXDMAC_DPP 0x00000001 + +/* Adaptive IFS defines */ +#define TX_THRESHOLD_START 8 +#define TX_THRESHOLD_INCREMENT 10 +#define TX_THRESHOLD_DECREMENT 1 +#define TX_THRESHOLD_STOP 190 +#define TX_THRESHOLD_DISABLE 0 +#define TX_THRESHOLD_TIMER_MS 10000 +#define MIN_NUM_XMITS 1000 +#define IFS_MAX 80 +#define IFS_STEP 10 +#define IFS_MIN 40 +#define IFS_RATIO 4 + +/* Extended Configuration Control and Size */ +#define E1000_EXTCNF_CTRL_PCIE_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_PHY_WRITE_ENABLE 0x00000002 +#define E1000_EXTCNF_CTRL_D_UD_ENABLE 0x00000004 +#define E1000_EXTCNF_CTRL_D_UD_LATENCY 0x00000008 +#define E1000_EXTCNF_CTRL_D_UD_OWNER 0x00000010 +#define E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP 0x00000020 +#define E1000_EXTCNF_CTRL_MDIO_HW_OWNERSHIP 0x00000040 +#define E1000_EXTCNF_CTRL_EXT_CNF_POINTER 0x0FFF0000 + +#define E1000_EXTCNF_SIZE_EXT_PHY_LENGTH 0x000000FF +#define E1000_EXTCNF_SIZE_EXT_DOCK_LENGTH 0x0000FF00 +#define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH 0x00FF0000 +#define E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_SWFLAG 0x00000020 + +/* PBA constants */ +#define E1000_PBA_8K 0x0008 /* 8KB, default Rx allocation */ +#define E1000_PBA_12K 0x000C /* 12KB, default Rx allocation */ +#define E1000_PBA_16K 0x0010 /* 16KB, default TX allocation */ +#define E1000_PBA_20K 0x0014 +#define E1000_PBA_22K 0x0016 +#define E1000_PBA_24K 0x0018 +#define E1000_PBA_30K 0x001E +#define E1000_PBA_32K 0x0020 +#define E1000_PBA_34K 0x0022 +#define E1000_PBA_38K 0x0026 +#define E1000_PBA_40K 0x0028 +#define E1000_PBA_48K 0x0030 /* 48KB, default RX allocation */ + +#define E1000_PBS_16K E1000_PBA_16K + +/* Flow Control Constants */ +#define FLOW_CONTROL_ADDRESS_LOW 0x00C28001 +#define FLOW_CONTROL_ADDRESS_HIGH 0x00000100 +#define FLOW_CONTROL_TYPE 0x8808 + +/* The historical defaults for the flow control values are given below. */ +#define FC_DEFAULT_HI_THRESH (0x8000) /* 32KB */ +#define FC_DEFAULT_LO_THRESH (0x4000) /* 16KB */ +#define FC_DEFAULT_TX_TIMER (0x100) /* ~130 us */ + +/* PCIX Config space */ +#define PCIX_COMMAND_REGISTER 0xE6 +#define PCIX_STATUS_REGISTER_LO 0xE8 +#define PCIX_STATUS_REGISTER_HI 0xEA + +#define PCIX_COMMAND_MMRBC_MASK 0x000C +#define PCIX_COMMAND_MMRBC_SHIFT 0x2 +#define PCIX_STATUS_HI_MMRBC_MASK 0x0060 +#define PCIX_STATUS_HI_MMRBC_SHIFT 0x5 +#define PCIX_STATUS_HI_MMRBC_4K 0x3 +#define PCIX_STATUS_HI_MMRBC_2K 0x2 + +/* Number of bits required to shift right the "pause" bits from the + * EEPROM (bits 13:12) to the "pause" (bits 8:7) field in the TXCW register. + */ +#define PAUSE_SHIFT 5 + +/* Number of bits required to shift left the "SWDPIO" bits from the + * EEPROM (bits 8:5) to the "SWDPIO" (bits 25:22) field in the CTRL register. + */ +#define SWDPIO_SHIFT 17 + +/* Number of bits required to shift left the "SWDPIO_EXT" bits from the + * EEPROM word F (bits 7:4) to the bits 11:8 of The Extended CTRL register. + */ +#define SWDPIO__EXT_SHIFT 4 + +/* Number of bits required to shift left the "ILOS" bit from the EEPROM + * (bit 4) to the "ILOS" (bit 7) field in the CTRL register. + */ +#define ILOS_SHIFT 3 + +#define RECEIVE_BUFFER_ALIGN_SIZE (256) + +/* Number of milliseconds we wait for auto-negotiation to complete */ +#define LINK_UP_TIMEOUT 500 + +/* Number of milliseconds we wait for Eeprom auto read bit done after MAC reset */ +#define AUTO_READ_DONE_TIMEOUT 10 +/* Number of milliseconds we wait for PHY configuration done after MAC reset */ +#define PHY_CFG_TIMEOUT 100 + +#define E1000_TX_BUFFER_SIZE ((u32)1514) + +/* The carrier extension symbol, as received by the NIC. */ +#define CARRIER_EXTENSION 0x0F + +/* TBI_ACCEPT macro definition: + * + * This macro requires: + * adapter = a pointer to struct e1000_hw + * status = the 8 bit status field of the RX descriptor with EOP set + * error = the 8 bit error field of the RX descriptor with EOP set + * length = the sum of all the length fields of the RX descriptors that + * make up the current frame + * last_byte = the last byte of the frame DMAed by the hardware + * max_frame_length = the maximum frame length we want to accept. + * min_frame_length = the minimum frame length we want to accept. + * + * This macro is a conditional that should be used in the interrupt + * handler's Rx processing routine when RxErrors have been detected. + * + * Typical use: + * ... + * if (TBI_ACCEPT) { + * accept_frame = true; + * e1000_tbi_adjust_stats(adapter, MacAddress); + * frame_length--; + * } else { + * accept_frame = false; + * } + * ... + */ + +#define TBI_ACCEPT(adapter, status, errors, length, last_byte) \ + ((adapter)->tbi_compatibility_on && \ + (((errors) & E1000_RXD_ERR_FRAME_ERR_MASK) == E1000_RXD_ERR_CE) && \ + ((last_byte) == CARRIER_EXTENSION) && \ + (((status) & E1000_RXD_STAT_VP) ? \ + (((length) > ((adapter)->min_frame_size - VLAN_TAG_SIZE)) && \ + ((length) <= ((adapter)->max_frame_size + 1))) : \ + (((length) > (adapter)->min_frame_size) && \ + ((length) <= ((adapter)->max_frame_size + VLAN_TAG_SIZE + 1))))) + +/* Structures, enums, and macros for the PHY */ + +/* Bit definitions for the Management Data IO (MDIO) and Management Data + * Clock (MDC) pins in the Device Control Register. + */ +#define E1000_CTRL_PHY_RESET_DIR E1000_CTRL_SWDPIO0 +#define E1000_CTRL_PHY_RESET E1000_CTRL_SWDPIN0 +#define E1000_CTRL_MDIO_DIR E1000_CTRL_SWDPIO2 +#define E1000_CTRL_MDIO E1000_CTRL_SWDPIN2 +#define E1000_CTRL_MDC_DIR E1000_CTRL_SWDPIO3 +#define E1000_CTRL_MDC E1000_CTRL_SWDPIN3 +#define E1000_CTRL_PHY_RESET_DIR4 E1000_CTRL_EXT_SDP4_DIR +#define E1000_CTRL_PHY_RESET4 E1000_CTRL_EXT_SDP4_DATA + +/* PHY 1000 MII Register/Bit Definitions */ +/* PHY Registers defined by IEEE */ +#define PHY_CTRL 0x00 /* Control Register */ +#define PHY_STATUS 0x01 /* Status Register */ +#define PHY_ID1 0x02 /* Phy Id Reg (word 1) */ +#define PHY_ID2 0x03 /* Phy Id Reg (word 2) */ +#define PHY_AUTONEG_ADV 0x04 /* Autoneg Advertisement */ +#define PHY_LP_ABILITY 0x05 /* Link Partner Ability (Base Page) */ +#define PHY_AUTONEG_EXP 0x06 /* Autoneg Expansion Reg */ +#define PHY_NEXT_PAGE_TX 0x07 /* Next Page TX */ +#define PHY_LP_NEXT_PAGE 0x08 /* Link Partner Next Page */ +#define PHY_1000T_CTRL 0x09 /* 1000Base-T Control Reg */ +#define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Reg */ +#define PHY_EXT_STATUS 0x0F /* Extended Status Reg */ + +#define MAX_PHY_REG_ADDRESS 0x1F /* 5 bit address bus (0-0x1F) */ +#define MAX_PHY_MULTI_PAGE_REG 0xF /* Registers equal on all pages */ + +/* M88E1000 Specific Registers */ +#define M88E1000_PHY_SPEC_CTRL 0x10 /* PHY Specific Control Register */ +#define M88E1000_PHY_SPEC_STATUS 0x11 /* PHY Specific Status Register */ +#define M88E1000_INT_ENABLE 0x12 /* Interrupt Enable Register */ +#define M88E1000_INT_STATUS 0x13 /* Interrupt Status Register */ +#define M88E1000_EXT_PHY_SPEC_CTRL 0x14 /* Extended PHY Specific Control */ +#define M88E1000_RX_ERR_CNTR 0x15 /* Receive Error Counter */ + +#define M88E1000_PHY_EXT_CTRL 0x1A /* PHY extend control register */ +#define M88E1000_PHY_PAGE_SELECT 0x1D /* Reg 29 for page number setting */ +#define M88E1000_PHY_GEN_CONTROL 0x1E /* Its meaning depends on reg 29 */ +#define M88E1000_PHY_VCO_REG_BIT8 0x100 /* Bits 8 & 11 are adjusted for */ +#define M88E1000_PHY_VCO_REG_BIT11 0x800 /* improved BER performance */ + +#define IGP01E1000_IEEE_REGS_PAGE 0x0000 +#define IGP01E1000_IEEE_RESTART_AUTONEG 0x3300 +#define IGP01E1000_IEEE_FORCE_GIGA 0x0140 + +/* IGP01E1000 Specific Registers */ +#define IGP01E1000_PHY_PORT_CONFIG 0x10 /* PHY Specific Port Config Register */ +#define IGP01E1000_PHY_PORT_STATUS 0x11 /* PHY Specific Status Register */ +#define IGP01E1000_PHY_PORT_CTRL 0x12 /* PHY Specific Control Register */ +#define IGP01E1000_PHY_LINK_HEALTH 0x13 /* PHY Link Health Register */ +#define IGP01E1000_GMII_FIFO 0x14 /* GMII FIFO Register */ +#define IGP01E1000_PHY_CHANNEL_QUALITY 0x15 /* PHY Channel Quality Register */ +#define IGP02E1000_PHY_POWER_MGMT 0x19 +#define IGP01E1000_PHY_PAGE_SELECT 0x1F /* PHY Page Select Core Register */ + +/* IGP01E1000 AGC Registers - stores the cable length values*/ +#define IGP01E1000_PHY_AGC_A 0x1172 +#define IGP01E1000_PHY_AGC_B 0x1272 +#define IGP01E1000_PHY_AGC_C 0x1472 +#define IGP01E1000_PHY_AGC_D 0x1872 + +/* IGP02E1000 AGC Registers for cable length values */ +#define IGP02E1000_PHY_AGC_A 0x11B1 +#define IGP02E1000_PHY_AGC_B 0x12B1 +#define IGP02E1000_PHY_AGC_C 0x14B1 +#define IGP02E1000_PHY_AGC_D 0x18B1 + +/* IGP01E1000 DSP Reset Register */ +#define IGP01E1000_PHY_DSP_RESET 0x1F33 +#define IGP01E1000_PHY_DSP_SET 0x1F71 +#define IGP01E1000_PHY_DSP_FFE 0x1F35 + +#define IGP01E1000_PHY_CHANNEL_NUM 4 +#define IGP02E1000_PHY_CHANNEL_NUM 4 + +#define IGP01E1000_PHY_AGC_PARAM_A 0x1171 +#define IGP01E1000_PHY_AGC_PARAM_B 0x1271 +#define IGP01E1000_PHY_AGC_PARAM_C 0x1471 +#define IGP01E1000_PHY_AGC_PARAM_D 0x1871 + +#define IGP01E1000_PHY_EDAC_MU_INDEX 0xC000 +#define IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS 0x8000 + +#define IGP01E1000_PHY_ANALOG_TX_STATE 0x2890 +#define IGP01E1000_PHY_ANALOG_CLASS_A 0x2000 +#define IGP01E1000_PHY_FORCE_ANALOG_ENABLE 0x0004 +#define IGP01E1000_PHY_DSP_FFE_CM_CP 0x0069 + +#define IGP01E1000_PHY_DSP_FFE_DEFAULT 0x002A +/* IGP01E1000 PCS Initialization register - stores the polarity status when + * speed = 1000 Mbps. */ +#define IGP01E1000_PHY_PCS_INIT_REG 0x00B4 +#define IGP01E1000_PHY_PCS_CTRL_REG 0x00B5 + +#define IGP01E1000_ANALOG_REGS_PAGE 0x20C0 + +/* PHY Control Register */ +#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */ +#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */ +#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */ +#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */ +#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */ +#define MII_CR_POWER_DOWN 0x0800 /* Power down */ +#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */ +#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */ +#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */ +#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */ + +/* PHY Status Register */ +#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */ +#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */ +#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */ +#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */ +#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */ +#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */ +#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */ +#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */ +#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */ +#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */ +#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */ +#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */ +#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */ +#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */ +#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */ + +/* Autoneg Advertisement Register */ +#define NWAY_AR_SELECTOR_FIELD 0x0001 /* indicates IEEE 802.3 CSMA/CD */ +#define NWAY_AR_10T_HD_CAPS 0x0020 /* 10T Half Duplex Capable */ +#define NWAY_AR_10T_FD_CAPS 0x0040 /* 10T Full Duplex Capable */ +#define NWAY_AR_100TX_HD_CAPS 0x0080 /* 100TX Half Duplex Capable */ +#define NWAY_AR_100TX_FD_CAPS 0x0100 /* 100TX Full Duplex Capable */ +#define NWAY_AR_100T4_CAPS 0x0200 /* 100T4 Capable */ +#define NWAY_AR_PAUSE 0x0400 /* Pause operation desired */ +#define NWAY_AR_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */ +#define NWAY_AR_REMOTE_FAULT 0x2000 /* Remote Fault detected */ +#define NWAY_AR_NEXT_PAGE 0x8000 /* Next Page ability supported */ + +/* Link Partner Ability Register (Base Page) */ +#define NWAY_LPAR_SELECTOR_FIELD 0x0000 /* LP protocol selector field */ +#define NWAY_LPAR_10T_HD_CAPS 0x0020 /* LP is 10T Half Duplex Capable */ +#define NWAY_LPAR_10T_FD_CAPS 0x0040 /* LP is 10T Full Duplex Capable */ +#define NWAY_LPAR_100TX_HD_CAPS 0x0080 /* LP is 100TX Half Duplex Capable */ +#define NWAY_LPAR_100TX_FD_CAPS 0x0100 /* LP is 100TX Full Duplex Capable */ +#define NWAY_LPAR_100T4_CAPS 0x0200 /* LP is 100T4 Capable */ +#define NWAY_LPAR_PAUSE 0x0400 /* LP Pause operation desired */ +#define NWAY_LPAR_ASM_DIR 0x0800 /* LP Asymmetric Pause Direction bit */ +#define NWAY_LPAR_REMOTE_FAULT 0x2000 /* LP has detected Remote Fault */ +#define NWAY_LPAR_ACKNOWLEDGE 0x4000 /* LP has rx'd link code word */ +#define NWAY_LPAR_NEXT_PAGE 0x8000 /* Next Page ability supported */ + +/* Autoneg Expansion Register */ +#define NWAY_ER_LP_NWAY_CAPS 0x0001 /* LP has Auto Neg Capability */ +#define NWAY_ER_PAGE_RXD 0x0002 /* LP is 10T Half Duplex Capable */ +#define NWAY_ER_NEXT_PAGE_CAPS 0x0004 /* LP is 10T Full Duplex Capable */ +#define NWAY_ER_LP_NEXT_PAGE_CAPS 0x0008 /* LP is 100TX Half Duplex Capable */ +#define NWAY_ER_PAR_DETECT_FAULT 0x0010 /* LP is 100TX Full Duplex Capable */ + +/* Next Page TX Register */ +#define NPTX_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */ +#define NPTX_TOGGLE 0x0800 /* Toggles between exchanges + * of different NP + */ +#define NPTX_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg + * 0 = cannot comply with msg + */ +#define NPTX_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */ +#define NPTX_NEXT_PAGE 0x8000 /* 1 = addition NP will follow + * 0 = sending last NP + */ + +/* Link Partner Next Page Register */ +#define LP_RNPR_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */ +#define LP_RNPR_TOGGLE 0x0800 /* Toggles between exchanges + * of different NP + */ +#define LP_RNPR_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg + * 0 = cannot comply with msg + */ +#define LP_RNPR_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */ +#define LP_RNPR_ACKNOWLDGE 0x4000 /* 1 = ACK / 0 = NO ACK */ +#define LP_RNPR_NEXT_PAGE 0x8000 /* 1 = addition NP will follow + * 0 = sending last NP + */ + +/* 1000BASE-T Control Register */ +#define CR_1000T_ASYM_PAUSE 0x0080 /* Advertise asymmetric pause bit */ +#define CR_1000T_HD_CAPS 0x0100 /* Advertise 1000T HD capability */ +#define CR_1000T_FD_CAPS 0x0200 /* Advertise 1000T FD capability */ +#define CR_1000T_REPEATER_DTE 0x0400 /* 1=Repeater/switch device port */ + /* 0=DTE device */ +#define CR_1000T_MS_VALUE 0x0800 /* 1=Configure PHY as Master */ + /* 0=Configure PHY as Slave */ +#define CR_1000T_MS_ENABLE 0x1000 /* 1=Master/Slave manual config value */ + /* 0=Automatic Master/Slave config */ +#define CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */ +#define CR_1000T_TEST_MODE_1 0x2000 /* Transmit Waveform test */ +#define CR_1000T_TEST_MODE_2 0x4000 /* Master Transmit Jitter test */ +#define CR_1000T_TEST_MODE_3 0x6000 /* Slave Transmit Jitter test */ +#define CR_1000T_TEST_MODE_4 0x8000 /* Transmitter Distortion test */ + +/* 1000BASE-T Status Register */ +#define SR_1000T_IDLE_ERROR_CNT 0x00FF /* Num idle errors since last read */ +#define SR_1000T_ASYM_PAUSE_DIR 0x0100 /* LP asymmetric pause direction bit */ +#define SR_1000T_LP_HD_CAPS 0x0400 /* LP is 1000T HD capable */ +#define SR_1000T_LP_FD_CAPS 0x0800 /* LP is 1000T FD capable */ +#define SR_1000T_REMOTE_RX_STATUS 0x1000 /* Remote receiver OK */ +#define SR_1000T_LOCAL_RX_STATUS 0x2000 /* Local receiver OK */ +#define SR_1000T_MS_CONFIG_RES 0x4000 /* 1=Local TX is Master, 0=Slave */ +#define SR_1000T_MS_CONFIG_FAULT 0x8000 /* Master/Slave config fault */ +#define SR_1000T_REMOTE_RX_STATUS_SHIFT 12 +#define SR_1000T_LOCAL_RX_STATUS_SHIFT 13 +#define SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT 5 +#define FFE_IDLE_ERR_COUNT_TIMEOUT_20 20 +#define FFE_IDLE_ERR_COUNT_TIMEOUT_100 100 + +/* Extended Status Register */ +#define IEEE_ESR_1000T_HD_CAPS 0x1000 /* 1000T HD capable */ +#define IEEE_ESR_1000T_FD_CAPS 0x2000 /* 1000T FD capable */ +#define IEEE_ESR_1000X_HD_CAPS 0x4000 /* 1000X HD capable */ +#define IEEE_ESR_1000X_FD_CAPS 0x8000 /* 1000X FD capable */ + +#define PHY_TX_POLARITY_MASK 0x0100 /* register 10h bit 8 (polarity bit) */ +#define PHY_TX_NORMAL_POLARITY 0 /* register 10h bit 8 (normal polarity) */ + +#define AUTO_POLARITY_DISABLE 0x0010 /* register 11h bit 4 */ + /* (0=enable, 1=disable) */ + +/* M88E1000 PHY Specific Control Register */ +#define M88E1000_PSCR_JABBER_DISABLE 0x0001 /* 1=Jabber Function disabled */ +#define M88E1000_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reversal enabled */ +#define M88E1000_PSCR_SQE_TEST 0x0004 /* 1=SQE Test enabled */ +#define M88E1000_PSCR_CLK125_DISABLE 0x0010 /* 1=CLK125 low, + * 0=CLK125 toggling + */ +#define M88E1000_PSCR_MDI_MANUAL_MODE 0x0000 /* MDI Crossover Mode bits 6:5 */ + /* Manual MDI configuration */ +#define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */ +#define M88E1000_PSCR_AUTO_X_1000T 0x0040 /* 1000BASE-T: Auto crossover, + * 100BASE-TX/10BASE-T: + * MDI Mode + */ +#define M88E1000_PSCR_AUTO_X_MODE 0x0060 /* Auto crossover enabled + * all speeds. + */ +#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE 0x0080 + /* 1=Enable Extended 10BASE-T distance + * (Lower 10BASE-T RX Threshold) + * 0=Normal 10BASE-T RX Threshold */ +#define M88E1000_PSCR_MII_5BIT_ENABLE 0x0100 + /* 1=5-Bit interface in 100BASE-TX + * 0=MII interface in 100BASE-TX */ +#define M88E1000_PSCR_SCRAMBLER_DISABLE 0x0200 /* 1=Scrambler disable */ +#define M88E1000_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force link good */ +#define M88E1000_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */ + +#define M88E1000_PSCR_POLARITY_REVERSAL_SHIFT 1 +#define M88E1000_PSCR_AUTO_X_MODE_SHIFT 5 +#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7 + +/* M88E1000 PHY Specific Status Register */ +#define M88E1000_PSSR_JABBER 0x0001 /* 1=Jabber */ +#define M88E1000_PSSR_REV_POLARITY 0x0002 /* 1=Polarity reversed */ +#define M88E1000_PSSR_DOWNSHIFT 0x0020 /* 1=Downshifted */ +#define M88E1000_PSSR_MDIX 0x0040 /* 1=MDIX; 0=MDI */ +#define M88E1000_PSSR_CABLE_LENGTH 0x0380 /* 0=<50M;1=50-80M;2=80-110M; + * 3=110-140M;4=>140M */ +#define M88E1000_PSSR_LINK 0x0400 /* 1=Link up, 0=Link down */ +#define M88E1000_PSSR_SPD_DPLX_RESOLVED 0x0800 /* 1=Speed & Duplex resolved */ +#define M88E1000_PSSR_PAGE_RCVD 0x1000 /* 1=Page received */ +#define M88E1000_PSSR_DPLX 0x2000 /* 1=Duplex 0=Half Duplex */ +#define M88E1000_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */ +#define M88E1000_PSSR_10MBS 0x0000 /* 00=10Mbs */ +#define M88E1000_PSSR_100MBS 0x4000 /* 01=100Mbs */ +#define M88E1000_PSSR_1000MBS 0x8000 /* 10=1000Mbs */ + +#define M88E1000_PSSR_REV_POLARITY_SHIFT 1 +#define M88E1000_PSSR_DOWNSHIFT_SHIFT 5 +#define M88E1000_PSSR_MDIX_SHIFT 6 +#define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7 + +/* M88E1000 Extended PHY Specific Control Register */ +#define M88E1000_EPSCR_FIBER_LOOPBACK 0x4000 /* 1=Fiber loopback */ +#define M88E1000_EPSCR_DOWN_NO_IDLE 0x8000 /* 1=Lost lock detect enabled. + * Will assert lost lock and bring + * link down if idle not seen + * within 1ms in 1000BASE-T + */ +/* Number of times we will attempt to autonegotiate before downshifting if we + * are the master */ +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK 0x0C00 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_1X 0x0000 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_2X 0x0400 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_3X 0x0800 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_4X 0x0C00 +/* Number of times we will attempt to autonegotiate before downshifting if we + * are the slave */ +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK 0x0300 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_DIS 0x0000 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X 0x0100 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_2X 0x0200 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_3X 0x0300 +#define M88E1000_EPSCR_TX_CLK_2_5 0x0060 /* 2.5 MHz TX_CLK */ +#define M88E1000_EPSCR_TX_CLK_25 0x0070 /* 25 MHz TX_CLK */ +#define M88E1000_EPSCR_TX_CLK_0 0x0000 /* NO TX_CLK */ + +/* M88EC018 Rev 2 specific DownShift settings */ +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK 0x0E00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_1X 0x0000 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_2X 0x0200 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_3X 0x0400 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_4X 0x0600 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X 0x0800 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_6X 0x0A00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_7X 0x0C00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_8X 0x0E00 + +/* IGP01E1000 Specific Port Config Register - R/W */ +#define IGP01E1000_PSCFR_AUTO_MDIX_PAR_DETECT 0x0010 +#define IGP01E1000_PSCFR_PRE_EN 0x0020 +#define IGP01E1000_PSCFR_SMART_SPEED 0x0080 +#define IGP01E1000_PSCFR_DISABLE_TPLOOPBACK 0x0100 +#define IGP01E1000_PSCFR_DISABLE_JABBER 0x0400 +#define IGP01E1000_PSCFR_DISABLE_TRANSMIT 0x2000 + +/* IGP01E1000 Specific Port Status Register - R/O */ +#define IGP01E1000_PSSR_AUTONEG_FAILED 0x0001 /* RO LH SC */ +#define IGP01E1000_PSSR_POLARITY_REVERSED 0x0002 +#define IGP01E1000_PSSR_CABLE_LENGTH 0x007C +#define IGP01E1000_PSSR_FULL_DUPLEX 0x0200 +#define IGP01E1000_PSSR_LINK_UP 0x0400 +#define IGP01E1000_PSSR_MDIX 0x0800 +#define IGP01E1000_PSSR_SPEED_MASK 0xC000 /* speed bits mask */ +#define IGP01E1000_PSSR_SPEED_10MBPS 0x4000 +#define IGP01E1000_PSSR_SPEED_100MBPS 0x8000 +#define IGP01E1000_PSSR_SPEED_1000MBPS 0xC000 +#define IGP01E1000_PSSR_CABLE_LENGTH_SHIFT 0x0002 /* shift right 2 */ +#define IGP01E1000_PSSR_MDIX_SHIFT 0x000B /* shift right 11 */ + +/* IGP01E1000 Specific Port Control Register - R/W */ +#define IGP01E1000_PSCR_TP_LOOPBACK 0x0010 +#define IGP01E1000_PSCR_CORRECT_NC_SCMBLR 0x0200 +#define IGP01E1000_PSCR_TEN_CRS_SELECT 0x0400 +#define IGP01E1000_PSCR_FLIP_CHIP 0x0800 +#define IGP01E1000_PSCR_AUTO_MDIX 0x1000 +#define IGP01E1000_PSCR_FORCE_MDI_MDIX 0x2000 /* 0-MDI, 1-MDIX */ + +/* IGP01E1000 Specific Port Link Health Register */ +#define IGP01E1000_PLHR_SS_DOWNGRADE 0x8000 +#define IGP01E1000_PLHR_GIG_SCRAMBLER_ERROR 0x4000 +#define IGP01E1000_PLHR_MASTER_FAULT 0x2000 +#define IGP01E1000_PLHR_MASTER_RESOLUTION 0x1000 +#define IGP01E1000_PLHR_GIG_REM_RCVR_NOK 0x0800 /* LH */ +#define IGP01E1000_PLHR_IDLE_ERROR_CNT_OFLOW 0x0400 /* LH */ +#define IGP01E1000_PLHR_DATA_ERR_1 0x0200 /* LH */ +#define IGP01E1000_PLHR_DATA_ERR_0 0x0100 +#define IGP01E1000_PLHR_AUTONEG_FAULT 0x0040 +#define IGP01E1000_PLHR_AUTONEG_ACTIVE 0x0010 +#define IGP01E1000_PLHR_VALID_CHANNEL_D 0x0008 +#define IGP01E1000_PLHR_VALID_CHANNEL_C 0x0004 +#define IGP01E1000_PLHR_VALID_CHANNEL_B 0x0002 +#define IGP01E1000_PLHR_VALID_CHANNEL_A 0x0001 + +/* IGP01E1000 Channel Quality Register */ +#define IGP01E1000_MSE_CHANNEL_D 0x000F +#define IGP01E1000_MSE_CHANNEL_C 0x00F0 +#define IGP01E1000_MSE_CHANNEL_B 0x0F00 +#define IGP01E1000_MSE_CHANNEL_A 0xF000 + +#define IGP02E1000_PM_SPD 0x0001 /* Smart Power Down */ +#define IGP02E1000_PM_D3_LPLU 0x0004 /* Enable LPLU in non-D0a modes */ +#define IGP02E1000_PM_D0_LPLU 0x0002 /* Enable LPLU in D0a mode */ + +/* IGP01E1000 DSP reset macros */ +#define DSP_RESET_ENABLE 0x0 +#define DSP_RESET_DISABLE 0x2 +#define E1000_MAX_DSP_RESETS 10 + +/* IGP01E1000 & IGP02E1000 AGC Registers */ + +#define IGP01E1000_AGC_LENGTH_SHIFT 7 /* Coarse - 13:11, Fine - 10:7 */ +#define IGP02E1000_AGC_LENGTH_SHIFT 9 /* Coarse - 15:13, Fine - 12:9 */ + +/* IGP02E1000 AGC Register Length 9-bit mask */ +#define IGP02E1000_AGC_LENGTH_MASK 0x7F + +/* 7 bits (3 Coarse + 4 Fine) --> 128 optional values */ +#define IGP01E1000_AGC_LENGTH_TABLE_SIZE 128 +#define IGP02E1000_AGC_LENGTH_TABLE_SIZE 113 + +/* The precision error of the cable length is +/- 10 meters */ +#define IGP01E1000_AGC_RANGE 10 +#define IGP02E1000_AGC_RANGE 15 + +/* IGP01E1000 PCS Initialization register */ +/* bits 3:6 in the PCS registers stores the channels polarity */ +#define IGP01E1000_PHY_POLARITY_MASK 0x0078 + +/* IGP01E1000 GMII FIFO Register */ +#define IGP01E1000_GMII_FLEX_SPD 0x10 /* Enable flexible speed + * on Link-Up */ +#define IGP01E1000_GMII_SPD 0x20 /* Enable SPD */ + +/* IGP01E1000 Analog Register */ +#define IGP01E1000_ANALOG_SPARE_FUSE_STATUS 0x20D1 +#define IGP01E1000_ANALOG_FUSE_STATUS 0x20D0 +#define IGP01E1000_ANALOG_FUSE_CONTROL 0x20DC +#define IGP01E1000_ANALOG_FUSE_BYPASS 0x20DE + +#define IGP01E1000_ANALOG_FUSE_POLY_MASK 0xF000 +#define IGP01E1000_ANALOG_FUSE_FINE_MASK 0x0F80 +#define IGP01E1000_ANALOG_FUSE_COARSE_MASK 0x0070 +#define IGP01E1000_ANALOG_SPARE_FUSE_ENABLED 0x0100 +#define IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL 0x0002 + +#define IGP01E1000_ANALOG_FUSE_COARSE_THRESH 0x0040 +#define IGP01E1000_ANALOG_FUSE_COARSE_10 0x0010 +#define IGP01E1000_ANALOG_FUSE_FINE_1 0x0080 +#define IGP01E1000_ANALOG_FUSE_FINE_10 0x0500 + +/* Bit definitions for valid PHY IDs. */ +/* I = Integrated + * E = External + */ +#define M88_VENDOR 0x0141 +#define M88E1000_E_PHY_ID 0x01410C50 +#define M88E1000_I_PHY_ID 0x01410C30 +#define M88E1011_I_PHY_ID 0x01410C20 +#define IGP01E1000_I_PHY_ID 0x02A80380 +#define M88E1000_12_PHY_ID M88E1000_E_PHY_ID +#define M88E1000_14_PHY_ID M88E1000_E_PHY_ID +#define M88E1011_I_REV_4 0x04 +#define M88E1111_I_PHY_ID 0x01410CC0 +#define L1LXT971A_PHY_ID 0x001378E0 + +/* Bits... + * 15-5: page + * 4-0: register offset + */ +#define PHY_PAGE_SHIFT 5 +#define PHY_REG(page, reg) \ + (((page) << PHY_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS)) + +#define IGP3_PHY_PORT_CTRL \ + PHY_REG(769, 17) /* Port General Configuration */ +#define IGP3_PHY_RATE_ADAPT_CTRL \ + PHY_REG(769, 25) /* Rate Adapter Control Register */ + +#define IGP3_KMRN_FIFO_CTRL_STATS \ + PHY_REG(770, 16) /* KMRN FIFO's control/status register */ +#define IGP3_KMRN_POWER_MNG_CTRL \ + PHY_REG(770, 17) /* KMRN Power Management Control Register */ +#define IGP3_KMRN_INBAND_CTRL \ + PHY_REG(770, 18) /* KMRN Inband Control Register */ +#define IGP3_KMRN_DIAG \ + PHY_REG(770, 19) /* KMRN Diagnostic register */ +#define IGP3_KMRN_DIAG_PCS_LOCK_LOSS 0x0002 /* RX PCS is not synced */ +#define IGP3_KMRN_ACK_TIMEOUT \ + PHY_REG(770, 20) /* KMRN Acknowledge Timeouts register */ + +#define IGP3_VR_CTRL \ + PHY_REG(776, 18) /* Voltage regulator control register */ +#define IGP3_VR_CTRL_MODE_SHUT 0x0200 /* Enter powerdown, shutdown VRs */ +#define IGP3_VR_CTRL_MODE_MASK 0x0300 /* Shutdown VR Mask */ + +#define IGP3_CAPABILITY \ + PHY_REG(776, 19) /* IGP3 Capability Register */ + +/* Capabilities for SKU Control */ +#define IGP3_CAP_INITIATE_TEAM 0x0001 /* Able to initiate a team */ +#define IGP3_CAP_WFM 0x0002 /* Support WoL and PXE */ +#define IGP3_CAP_ASF 0x0004 /* Support ASF */ +#define IGP3_CAP_LPLU 0x0008 /* Support Low Power Link Up */ +#define IGP3_CAP_DC_AUTO_SPEED 0x0010 /* Support AC/DC Auto Link Speed */ +#define IGP3_CAP_SPD 0x0020 /* Support Smart Power Down */ +#define IGP3_CAP_MULT_QUEUE 0x0040 /* Support 2 tx & 2 rx queues */ +#define IGP3_CAP_RSS 0x0080 /* Support RSS */ +#define IGP3_CAP_8021PQ 0x0100 /* Support 802.1Q & 802.1p */ +#define IGP3_CAP_AMT_CB 0x0200 /* Support active manageability and circuit breaker */ + +#define IGP3_PPC_JORDAN_EN 0x0001 +#define IGP3_PPC_JORDAN_GIGA_SPEED 0x0002 + +#define IGP3_KMRN_PMC_EE_IDLE_LINK_DIS 0x0001 +#define IGP3_KMRN_PMC_K0S_ENTRY_LATENCY_MASK 0x001E +#define IGP3_KMRN_PMC_K0S_MODE1_EN_GIGA 0x0020 +#define IGP3_KMRN_PMC_K0S_MODE1_EN_100 0x0040 + +#define IGP3E1000_PHY_MISC_CTRL 0x1B /* Misc. Ctrl register */ +#define IGP3_PHY_MISC_DUPLEX_MANUAL_SET 0x1000 /* Duplex Manual Set */ + +#define IGP3_KMRN_EXT_CTRL PHY_REG(770, 18) +#define IGP3_KMRN_EC_DIS_INBAND 0x0080 + +#define IGP03E1000_E_PHY_ID 0x02A80390 +#define IFE_E_PHY_ID 0x02A80330 /* 10/100 PHY */ +#define IFE_PLUS_E_PHY_ID 0x02A80320 +#define IFE_C_E_PHY_ID 0x02A80310 + +#define IFE_PHY_EXTENDED_STATUS_CONTROL 0x10 /* 100BaseTx Extended Status, Control and Address */ +#define IFE_PHY_SPECIAL_CONTROL 0x11 /* 100BaseTx PHY special control register */ +#define IFE_PHY_RCV_FALSE_CARRIER 0x13 /* 100BaseTx Receive False Carrier Counter */ +#define IFE_PHY_RCV_DISCONNECT 0x14 /* 100BaseTx Receive Disconnect Counter */ +#define IFE_PHY_RCV_ERROT_FRAME 0x15 /* 100BaseTx Receive Error Frame Counter */ +#define IFE_PHY_RCV_SYMBOL_ERR 0x16 /* Receive Symbol Error Counter */ +#define IFE_PHY_PREM_EOF_ERR 0x17 /* 100BaseTx Receive Premature End Of Frame Error Counter */ +#define IFE_PHY_RCV_EOF_ERR 0x18 /* 10BaseT Receive End Of Frame Error Counter */ +#define IFE_PHY_TX_JABBER_DETECT 0x19 /* 10BaseT Transmit Jabber Detect Counter */ +#define IFE_PHY_EQUALIZER 0x1A /* PHY Equalizer Control and Status */ +#define IFE_PHY_SPECIAL_CONTROL_LED 0x1B /* PHY special control and LED configuration */ +#define IFE_PHY_MDIX_CONTROL 0x1C /* MDI/MDI-X Control register */ +#define IFE_PHY_HWI_CONTROL 0x1D /* Hardware Integrity Control (HWI) */ + +#define IFE_PESC_REDUCED_POWER_DOWN_DISABLE 0x2000 /* Default 1 = Disable auto reduced power down */ +#define IFE_PESC_100BTX_POWER_DOWN 0x0400 /* Indicates the power state of 100BASE-TX */ +#define IFE_PESC_10BTX_POWER_DOWN 0x0200 /* Indicates the power state of 10BASE-T */ +#define IFE_PESC_POLARITY_REVERSED 0x0100 /* Indicates 10BASE-T polarity */ +#define IFE_PESC_PHY_ADDR_MASK 0x007C /* Bit 6:2 for sampled PHY address */ +#define IFE_PESC_SPEED 0x0002 /* Auto-negotiation speed result 1=100Mbs, 0=10Mbs */ +#define IFE_PESC_DUPLEX 0x0001 /* Auto-negotiation duplex result 1=Full, 0=Half */ +#define IFE_PESC_POLARITY_REVERSED_SHIFT 8 + +#define IFE_PSC_DISABLE_DYNAMIC_POWER_DOWN 0x0100 /* 1 = Dynamic Power Down disabled */ +#define IFE_PSC_FORCE_POLARITY 0x0020 /* 1=Reversed Polarity, 0=Normal */ +#define IFE_PSC_AUTO_POLARITY_DISABLE 0x0010 /* 1=Auto Polarity Disabled, 0=Enabled */ +#define IFE_PSC_JABBER_FUNC_DISABLE 0x0001 /* 1=Jabber Disabled, 0=Normal Jabber Operation */ +#define IFE_PSC_FORCE_POLARITY_SHIFT 5 +#define IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT 4 + +#define IFE_PMC_AUTO_MDIX 0x0080 /* 1=enable MDI/MDI-X feature, default 0=disabled */ +#define IFE_PMC_FORCE_MDIX 0x0040 /* 1=force MDIX-X, 0=force MDI */ +#define IFE_PMC_MDIX_STATUS 0x0020 /* 1=MDI-X, 0=MDI */ +#define IFE_PMC_AUTO_MDIX_COMPLETE 0x0010 /* Resolution algorithm is completed */ +#define IFE_PMC_MDIX_MODE_SHIFT 6 +#define IFE_PHC_MDIX_RESET_ALL_MASK 0x0000 /* Disable auto MDI-X */ + +#define IFE_PHC_HWI_ENABLE 0x8000 /* Enable the HWI feature */ +#define IFE_PHC_ABILITY_CHECK 0x4000 /* 1= Test Passed, 0=failed */ +#define IFE_PHC_TEST_EXEC 0x2000 /* PHY launch test pulses on the wire */ +#define IFE_PHC_HIGHZ 0x0200 /* 1 = Open Circuit */ +#define IFE_PHC_LOWZ 0x0400 /* 1 = Short Circuit */ +#define IFE_PHC_LOW_HIGH_Z_MASK 0x0600 /* Mask for indication type of problem on the line */ +#define IFE_PHC_DISTANCE_MASK 0x01FF /* Mask for distance to the cable problem, in 80cm granularity */ +#define IFE_PHC_RESET_ALL_MASK 0x0000 /* Disable HWI */ +#define IFE_PSCL_PROBE_MODE 0x0020 /* LED Probe mode */ +#define IFE_PSCL_PROBE_LEDS_OFF 0x0006 /* Force LEDs 0 and 2 off */ +#define IFE_PSCL_PROBE_LEDS_ON 0x0007 /* Force LEDs 0 and 2 on */ + +#define ICH_FLASH_COMMAND_TIMEOUT 5000 /* 5000 uSecs - adjusted */ +#define ICH_FLASH_ERASE_TIMEOUT 3000000 /* Up to 3 seconds - worst case */ +#define ICH_FLASH_CYCLE_REPEAT_COUNT 10 /* 10 cycles */ +#define ICH_FLASH_SEG_SIZE_256 256 +#define ICH_FLASH_SEG_SIZE_4K 4096 +#define ICH_FLASH_SEG_SIZE_64K 65536 + +#define ICH_CYCLE_READ 0x0 +#define ICH_CYCLE_RESERVED 0x1 +#define ICH_CYCLE_WRITE 0x2 +#define ICH_CYCLE_ERASE 0x3 + +#define ICH_FLASH_GFPREG 0x0000 +#define ICH_FLASH_HSFSTS 0x0004 +#define ICH_FLASH_HSFCTL 0x0006 +#define ICH_FLASH_FADDR 0x0008 +#define ICH_FLASH_FDATA0 0x0010 +#define ICH_FLASH_FRACC 0x0050 +#define ICH_FLASH_FREG0 0x0054 +#define ICH_FLASH_FREG1 0x0058 +#define ICH_FLASH_FREG2 0x005C +#define ICH_FLASH_FREG3 0x0060 +#define ICH_FLASH_FPR0 0x0074 +#define ICH_FLASH_FPR1 0x0078 +#define ICH_FLASH_SSFSTS 0x0090 +#define ICH_FLASH_SSFCTL 0x0092 +#define ICH_FLASH_PREOP 0x0094 +#define ICH_FLASH_OPTYPE 0x0096 +#define ICH_FLASH_OPMENU 0x0098 + +#define ICH_FLASH_REG_MAPSIZE 0x00A0 +#define ICH_FLASH_SECTOR_SIZE 4096 +#define ICH_GFPREG_BASE_MASK 0x1FFF +#define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF + +/* Miscellaneous PHY bit definitions. */ +#define PHY_PREAMBLE 0xFFFFFFFF +#define PHY_SOF 0x01 +#define PHY_OP_READ 0x02 +#define PHY_OP_WRITE 0x01 +#define PHY_TURNAROUND 0x02 +#define PHY_PREAMBLE_SIZE 32 +#define MII_CR_SPEED_1000 0x0040 +#define MII_CR_SPEED_100 0x2000 +#define MII_CR_SPEED_10 0x0000 +#define E1000_PHY_ADDRESS 0x01 +#define PHY_AUTO_NEG_TIME 45 /* 4.5 Seconds */ +#define PHY_FORCE_TIME 20 /* 2.0 Seconds */ +#define PHY_REVISION_MASK 0xFFFFFFF0 +#define DEVICE_SPEED_MASK 0x00000300 /* Device Ctrl Reg Speed Mask */ +#define REG4_SPEED_MASK 0x01E0 +#define REG9_SPEED_MASK 0x0300 +#define ADVERTISE_10_HALF 0x0001 +#define ADVERTISE_10_FULL 0x0002 +#define ADVERTISE_100_HALF 0x0004 +#define ADVERTISE_100_FULL 0x0008 +#define ADVERTISE_1000_HALF 0x0010 +#define ADVERTISE_1000_FULL 0x0020 +#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F /* Everything but 1000-Half */ +#define AUTONEG_ADVERTISE_10_100_ALL 0x000F /* All 10/100 speeds */ +#define AUTONEG_ADVERTISE_10_ALL 0x0003 /* 10Mbps Full & Half speeds */ + +#endif /* _E1000_HW_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_hw-2.6.33-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_hw-2.6.33-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,5634 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + + */ + +/* e1000_hw.c + * Shared functions for accessing and configuring the MAC + */ + +#include "e1000_hw.h" + +static s32 e1000_check_downshift(struct e1000_hw *hw); +static s32 e1000_check_polarity(struct e1000_hw *hw, + e1000_rev_polarity *polarity); +static void e1000_clear_hw_cntrs(struct e1000_hw *hw); +static void e1000_clear_vfta(struct e1000_hw *hw); +static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, + bool link_up); +static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw); +static s32 e1000_detect_gig_phy(struct e1000_hw *hw); +static s32 e1000_get_auto_rd_done(struct e1000_hw *hw); +static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, + u16 *max_length); +static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw); +static s32 e1000_id_led_init(struct e1000_hw *hw); +static void e1000_init_rx_addrs(struct e1000_hw *hw); +static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info); +static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active); +static s32 e1000_wait_autoneg(struct e1000_hw *hw); +static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value); +static s32 e1000_set_phy_type(struct e1000_hw *hw); +static void e1000_phy_init_script(struct e1000_hw *hw); +static s32 e1000_setup_copper_link(struct e1000_hw *hw); +static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw); +static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw); +static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw); +static s32 e1000_config_mac_to_phy(struct e1000_hw *hw); +static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl); +static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl); +static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, u16 count); +static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw); +static s32 e1000_phy_reset_dsp(struct e1000_hw *hw); +static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data); +static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data); +static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw); +static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd); +static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd); +static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, u16 count); +static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 phy_data); +static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 *phy_data); +static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count); +static s32 e1000_acquire_eeprom(struct e1000_hw *hw); +static void e1000_release_eeprom(struct e1000_hw *hw); +static void e1000_standby_eeprom(struct e1000_hw *hw); +static s32 e1000_set_vco_speed(struct e1000_hw *hw); +static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw); +static s32 e1000_set_phy_mode(struct e1000_hw *hw); +static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); +static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data); + +/* IGP cable length table */ +static const +u16 e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] = { + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25, + 25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60, + 60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90, + 90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, + 100, + 100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, + 110, 110, + 110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, + 120, 120 +}; + +static DEFINE_SPINLOCK(e1000_eeprom_lock); + +/** + * e1000_set_phy_type - Set the phy type member in the hw struct. + * @hw: Struct containing variables accessed by shared code + */ +static s32 e1000_set_phy_type(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_set_phy_type"); + + if (hw->mac_type == e1000_undefined) + return -E1000_ERR_PHY_TYPE; + + switch (hw->phy_id) { + case M88E1000_E_PHY_ID: + case M88E1000_I_PHY_ID: + case M88E1011_I_PHY_ID: + case M88E1111_I_PHY_ID: + hw->phy_type = e1000_phy_m88; + break; + case IGP01E1000_I_PHY_ID: + if (hw->mac_type == e1000_82541 || + hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547 || + hw->mac_type == e1000_82547_rev_2) { + hw->phy_type = e1000_phy_igp; + break; + } + default: + /* Should never have loaded on this device */ + hw->phy_type = e1000_phy_undefined; + return -E1000_ERR_PHY_TYPE; + } + + return E1000_SUCCESS; +} + +/** + * e1000_phy_init_script - IGP phy init script - initializes the GbE PHY + * @hw: Struct containing variables accessed by shared code + */ +static void e1000_phy_init_script(struct e1000_hw *hw) +{ + u32 ret_val; + u16 phy_saved_data; + + DEBUGFUNC("e1000_phy_init_script"); + + if (hw->phy_init_script) { + msleep(20); + + /* Save off the current value of register 0x2F5B to be restored at + * the end of this routine. */ + ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + /* Disabled the PHY transmitter */ + e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + msleep(20); + + e1000_write_phy_reg(hw, 0x0000, 0x0140); + msleep(5); + + switch (hw->mac_type) { + case e1000_82541: + case e1000_82547: + e1000_write_phy_reg(hw, 0x1F95, 0x0001); + e1000_write_phy_reg(hw, 0x1F71, 0xBD21); + e1000_write_phy_reg(hw, 0x1F79, 0x0018); + e1000_write_phy_reg(hw, 0x1F30, 0x1600); + e1000_write_phy_reg(hw, 0x1F31, 0x0014); + e1000_write_phy_reg(hw, 0x1F32, 0x161C); + e1000_write_phy_reg(hw, 0x1F94, 0x0003); + e1000_write_phy_reg(hw, 0x1F96, 0x003F); + e1000_write_phy_reg(hw, 0x2010, 0x0008); + break; + + case e1000_82541_rev_2: + case e1000_82547_rev_2: + e1000_write_phy_reg(hw, 0x1F73, 0x0099); + break; + default: + break; + } + + e1000_write_phy_reg(hw, 0x0000, 0x3300); + msleep(20); + + /* Now enable the transmitter */ + e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (hw->mac_type == e1000_82547) { + u16 fused, fine, coarse; + + /* Move to analog registers page */ + e1000_read_phy_reg(hw, + IGP01E1000_ANALOG_SPARE_FUSE_STATUS, + &fused); + + if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) { + e1000_read_phy_reg(hw, + IGP01E1000_ANALOG_FUSE_STATUS, + &fused); + + fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK; + coarse = + fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK; + + if (coarse > + IGP01E1000_ANALOG_FUSE_COARSE_THRESH) { + coarse -= + IGP01E1000_ANALOG_FUSE_COARSE_10; + fine -= IGP01E1000_ANALOG_FUSE_FINE_1; + } else if (coarse == + IGP01E1000_ANALOG_FUSE_COARSE_THRESH) + fine -= IGP01E1000_ANALOG_FUSE_FINE_10; + + fused = + (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) | + (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) | + (coarse & + IGP01E1000_ANALOG_FUSE_COARSE_MASK); + + e1000_write_phy_reg(hw, + IGP01E1000_ANALOG_FUSE_CONTROL, + fused); + e1000_write_phy_reg(hw, + IGP01E1000_ANALOG_FUSE_BYPASS, + IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL); + } + } + } +} + +/** + * e1000_set_mac_type - Set the mac type member in the hw struct. + * @hw: Struct containing variables accessed by shared code + */ +s32 e1000_set_mac_type(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_set_mac_type"); + + switch (hw->device_id) { + case E1000_DEV_ID_82542: + switch (hw->revision_id) { + case E1000_82542_2_0_REV_ID: + hw->mac_type = e1000_82542_rev2_0; + break; + case E1000_82542_2_1_REV_ID: + hw->mac_type = e1000_82542_rev2_1; + break; + default: + /* Invalid 82542 revision ID */ + return -E1000_ERR_MAC_TYPE; + } + break; + case E1000_DEV_ID_82543GC_FIBER: + case E1000_DEV_ID_82543GC_COPPER: + hw->mac_type = e1000_82543; + break; + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + hw->mac_type = e1000_82544; + break; + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + hw->mac_type = e1000_82540; + break; + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + hw->mac_type = e1000_82545; + break; + case E1000_DEV_ID_82545GM_COPPER: + case E1000_DEV_ID_82545GM_FIBER: + case E1000_DEV_ID_82545GM_SERDES: + hw->mac_type = e1000_82545_rev_3; + break; + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + hw->mac_type = e1000_82546; + break; + case E1000_DEV_ID_82546GB_COPPER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82546GB_SERDES: + case E1000_DEV_ID_82546GB_PCIE: + case E1000_DEV_ID_82546GB_QUAD_COPPER: + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + hw->mac_type = e1000_82546_rev_3; + break; + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER_LOM: + hw->mac_type = e1000_82541; + break; + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + hw->mac_type = e1000_82541_rev_2; + break; + case E1000_DEV_ID_82547EI: + case E1000_DEV_ID_82547EI_MOBILE: + hw->mac_type = e1000_82547; + break; + case E1000_DEV_ID_82547GI: + hw->mac_type = e1000_82547_rev_2; + break; + default: + /* Should never have loaded on this device */ + return -E1000_ERR_MAC_TYPE; + } + + switch (hw->mac_type) { + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + hw->asf_firmware_present = true; + break; + default: + break; + } + + /* The 82543 chip does not count tx_carrier_errors properly in + * FD mode + */ + if (hw->mac_type == e1000_82543) + hw->bad_tx_carr_stats_fd = true; + + if (hw->mac_type > e1000_82544) + hw->has_smbus = true; + + return E1000_SUCCESS; +} + +/** + * e1000_set_media_type - Set media type and TBI compatibility. + * @hw: Struct containing variables accessed by shared code + */ +void e1000_set_media_type(struct e1000_hw *hw) +{ + u32 status; + + DEBUGFUNC("e1000_set_media_type"); + + if (hw->mac_type != e1000_82543) { + /* tbi_compatibility is only valid on 82543 */ + hw->tbi_compatibility_en = false; + } + + switch (hw->device_id) { + case E1000_DEV_ID_82545GM_SERDES: + case E1000_DEV_ID_82546GB_SERDES: + hw->media_type = e1000_media_type_internal_serdes; + break; + default: + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + hw->media_type = e1000_media_type_fiber; + break; + default: + status = er32(STATUS); + if (status & E1000_STATUS_TBIMODE) { + hw->media_type = e1000_media_type_fiber; + /* tbi_compatibility not valid on fiber */ + hw->tbi_compatibility_en = false; + } else { + hw->media_type = e1000_media_type_copper; + } + break; + } + } +} + +/** + * e1000_reset_hw: reset the hardware completely + * @hw: Struct containing variables accessed by shared code + * + * Reset the transmit and receive units; mask and clear all interrupts. + */ +s32 e1000_reset_hw(struct e1000_hw *hw) +{ + u32 ctrl; + u32 ctrl_ext; + u32 icr; + u32 manc; + u32 led_ctrl; + s32 ret_val; + + DEBUGFUNC("e1000_reset_hw"); + + /* For 82542 (rev 2.0), disable MWI before issuing a device reset */ + if (hw->mac_type == e1000_82542_rev2_0) { + DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); + e1000_pci_clear_mwi(hw); + } + + /* Clear interrupt mask to stop board from generating interrupts */ + DEBUGOUT("Masking off all interrupts\n"); + ew32(IMC, 0xffffffff); + + /* Disable the Transmit and Receive units. Then delay to allow + * any pending transactions to complete before we hit the MAC with + * the global reset. + */ + ew32(RCTL, 0); + ew32(TCTL, E1000_TCTL_PSP); + E1000_WRITE_FLUSH(); + + /* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */ + hw->tbi_compatibility_on = false; + + /* Delay to allow any outstanding PCI transactions to complete before + * resetting the device + */ + msleep(10); + + ctrl = er32(CTRL); + + /* Must reset the PHY before resetting the MAC */ + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + ew32(CTRL, (ctrl | E1000_CTRL_PHY_RST)); + msleep(5); + } + + /* Issue a global reset to the MAC. This will reset the chip's + * transmit, receive, DMA, and link units. It will not effect + * the current PCI configuration. The global reset bit is self- + * clearing, and should clear within a microsecond. + */ + DEBUGOUT("Issuing a global reset to MAC\n"); + + switch (hw->mac_type) { + case e1000_82544: + case e1000_82540: + case e1000_82545: + case e1000_82546: + case e1000_82541: + case e1000_82541_rev_2: + /* These controllers can't ack the 64-bit write when issuing the + * reset, so use IO-mapping as a workaround to issue the reset */ + E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST)); + break; + case e1000_82545_rev_3: + case e1000_82546_rev_3: + /* Reset is performed on a shadow of the control register */ + ew32(CTRL_DUP, (ctrl | E1000_CTRL_RST)); + break; + default: + ew32(CTRL, (ctrl | E1000_CTRL_RST)); + break; + } + + /* After MAC reset, force reload of EEPROM to restore power-on settings to + * device. Later controllers reload the EEPROM automatically, so just wait + * for reload to complete. + */ + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* Wait for reset to complete */ + udelay(10); + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_EE_RST; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + /* Wait for EEPROM reload */ + msleep(2); + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + /* Wait for EEPROM reload */ + msleep(20); + break; + default: + /* Auto read done will delay 5ms or poll based on mac type */ + ret_val = e1000_get_auto_rd_done(hw); + if (ret_val) + return ret_val; + break; + } + + /* Disable HW ARPs on ASF enabled adapters */ + if (hw->mac_type >= e1000_82540) { + manc = er32(MANC); + manc &= ~(E1000_MANC_ARP_EN); + ew32(MANC, manc); + } + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + e1000_phy_init_script(hw); + + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* Clear interrupt mask to stop board from generating interrupts */ + DEBUGOUT("Masking off all interrupts\n"); + ew32(IMC, 0xffffffff); + + /* Clear any pending interrupt events. */ + icr = er32(ICR); + + /* If MWI was previously enabled, reenable it. */ + if (hw->mac_type == e1000_82542_rev2_0) { + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + } + + return E1000_SUCCESS; +} + +/** + * e1000_init_hw: Performs basic configuration of the adapter. + * @hw: Struct containing variables accessed by shared code + * + * Assumes that the controller has previously been reset and is in a + * post-reset uninitialized state. Initializes the receive address registers, + * multicast table, and VLAN filter table. Calls routines to setup link + * configuration and flow control settings. Clears all on-chip counters. Leaves + * the transmit and receive units disabled and uninitialized. + */ +s32 e1000_init_hw(struct e1000_hw *hw) +{ + u32 ctrl; + u32 i; + s32 ret_val; + u32 mta_size; + u32 ctrl_ext; + + DEBUGFUNC("e1000_init_hw"); + + /* Initialize Identification LED */ + ret_val = e1000_id_led_init(hw); + if (ret_val) { + DEBUGOUT("Error Initializing Identification LED\n"); + return ret_val; + } + + /* Set the media type and TBI compatibility */ + e1000_set_media_type(hw); + + /* Disabling VLAN filtering. */ + DEBUGOUT("Initializing the IEEE VLAN\n"); + if (hw->mac_type < e1000_82545_rev_3) + ew32(VET, 0); + e1000_clear_vfta(hw); + + /* For 82542 (rev 2.0), disable MWI and put the receiver into reset */ + if (hw->mac_type == e1000_82542_rev2_0) { + DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); + e1000_pci_clear_mwi(hw); + ew32(RCTL, E1000_RCTL_RST); + E1000_WRITE_FLUSH(); + msleep(5); + } + + /* Setup the receive address. This involves initializing all of the Receive + * Address Registers (RARs 0 - 15). + */ + e1000_init_rx_addrs(hw); + + /* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */ + if (hw->mac_type == e1000_82542_rev2_0) { + ew32(RCTL, 0); + E1000_WRITE_FLUSH(); + msleep(1); + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + } + + /* Zero out the Multicast HASH table */ + DEBUGOUT("Zeroing the MTA\n"); + mta_size = E1000_MC_TBL_SIZE; + for (i = 0; i < mta_size; i++) { + E1000_WRITE_REG_ARRAY(hw, MTA, i, 0); + /* use write flush to prevent Memory Write Block (MWB) from + * occurring when accessing our register space */ + E1000_WRITE_FLUSH(); + } + + /* Set the PCI priority bit correctly in the CTRL register. This + * determines if the adapter gives priority to receives, or if it + * gives equal priority to transmits and receives. Valid only on + * 82542 and 82543 silicon. + */ + if (hw->dma_fairness && hw->mac_type <= e1000_82543) { + ctrl = er32(CTRL); + ew32(CTRL, ctrl | E1000_CTRL_PRIOR); + } + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + /* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */ + if (hw->bus_type == e1000_bus_type_pcix + && e1000_pcix_get_mmrbc(hw) > 2048) + e1000_pcix_set_mmrbc(hw, 2048); + break; + } + + /* Call a subroutine to configure the link and setup flow control. */ + ret_val = e1000_setup_link(hw); + + /* Set the transmit descriptor write-back policy */ + if (hw->mac_type > e1000_82544) { + ctrl = er32(TXDCTL); + ctrl = + (ctrl & ~E1000_TXDCTL_WTHRESH) | + E1000_TXDCTL_FULL_TX_DESC_WB; + ew32(TXDCTL, ctrl); + } + + /* Clear all of the statistics registers (clear on read). It is + * important that we do this after we have tried to establish link + * because the symbol error count will increment wildly if there + * is no link. + */ + e1000_clear_hw_cntrs(hw); + + if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER || + hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) { + ctrl_ext = er32(CTRL_EXT); + /* Relaxed ordering must be disabled to avoid a parity + * error crash in a PCI slot. */ + ctrl_ext |= E1000_CTRL_EXT_RO_DIS; + ew32(CTRL_EXT, ctrl_ext); + } + + return ret_val; +} + +/** + * e1000_adjust_serdes_amplitude - Adjust SERDES output amplitude based on EEPROM setting. + * @hw: Struct containing variables accessed by shared code. + */ +static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw) +{ + u16 eeprom_data; + s32 ret_val; + + DEBUGFUNC("e1000_adjust_serdes_amplitude"); + + if (hw->media_type != e1000_media_type_internal_serdes) + return E1000_SUCCESS; + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + return E1000_SUCCESS; + } + + ret_val = e1000_read_eeprom(hw, EEPROM_SERDES_AMPLITUDE, 1, + &eeprom_data); + if (ret_val) { + return ret_val; + } + + if (eeprom_data != EEPROM_RESERVED_WORD) { + /* Adjust SERDES output amplitude only. */ + eeprom_data &= EEPROM_SERDES_AMPLITUDE_MASK; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_EXT_CTRL, eeprom_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/** + * e1000_setup_link - Configures flow control and link settings. + * @hw: Struct containing variables accessed by shared code + * + * Determines which flow control settings to use. Calls the appropriate media- + * specific link configuration function. Configures the flow control settings. + * Assuming the adapter has a valid link partner, a valid link should be + * established. Assumes the hardware has previously been reset and the + * transmitter and receiver are not enabled. + */ +s32 e1000_setup_link(struct e1000_hw *hw) +{ + u32 ctrl_ext; + s32 ret_val; + u16 eeprom_data; + + DEBUGFUNC("e1000_setup_link"); + + /* Read and store word 0x0F of the EEPROM. This word contains bits + * that determine the hardware's default PAUSE (flow control) mode, + * a bit that determines whether the HW defaults to enabling or + * disabling auto-negotiation, and the direction of the + * SW defined pins. If there is no SW over-ride of the flow + * control setting, then the variable hw->fc will + * be initialized based on a value in the EEPROM. + */ + if (hw->fc == E1000_FC_DEFAULT) { + ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, + 1, &eeprom_data); + if (ret_val) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0) + hw->fc = E1000_FC_NONE; + else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == + EEPROM_WORD0F_ASM_DIR) + hw->fc = E1000_FC_TX_PAUSE; + else + hw->fc = E1000_FC_FULL; + } + + /* We want to save off the original Flow Control configuration just + * in case we get disconnected and then reconnected into a different + * hub or switch with different Flow Control capabilities. + */ + if (hw->mac_type == e1000_82542_rev2_0) + hw->fc &= (~E1000_FC_TX_PAUSE); + + if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1)) + hw->fc &= (~E1000_FC_RX_PAUSE); + + hw->original_fc = hw->fc; + + DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc); + + /* Take the 4 bits from EEPROM word 0x0F that determine the initial + * polarity value for the SW controlled pins, and setup the + * Extended Device Control reg with that info. + * This is needed because one of the SW controlled pins is used for + * signal detection. So this should be done before e1000_setup_pcs_link() + * or e1000_phy_setup() is called. + */ + if (hw->mac_type == e1000_82543) { + ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, + 1, &eeprom_data); + if (ret_val) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) << + SWDPIO__EXT_SHIFT); + ew32(CTRL_EXT, ctrl_ext); + } + + /* Call the necessary subroutine to configure the link. */ + ret_val = (hw->media_type == e1000_media_type_copper) ? + e1000_setup_copper_link(hw) : e1000_setup_fiber_serdes_link(hw); + + /* Initialize the flow control address, type, and PAUSE timer + * registers to their default values. This is done even if flow + * control is disabled, because it does not hurt anything to + * initialize these registers. + */ + DEBUGOUT + ("Initializing the Flow Control address, type and timer regs\n"); + + ew32(FCT, FLOW_CONTROL_TYPE); + ew32(FCAH, FLOW_CONTROL_ADDRESS_HIGH); + ew32(FCAL, FLOW_CONTROL_ADDRESS_LOW); + + ew32(FCTTV, hw->fc_pause_time); + + /* Set the flow control receive threshold registers. Normally, + * these registers will be set to a default threshold that may be + * adjusted later by the driver's runtime code. However, if the + * ability to transmit pause frames in not enabled, then these + * registers will be set to 0. + */ + if (!(hw->fc & E1000_FC_TX_PAUSE)) { + ew32(FCRTL, 0); + ew32(FCRTH, 0); + } else { + /* We need to set up the Receive Threshold high and low water marks + * as well as (optionally) enabling the transmission of XON frames. + */ + if (hw->fc_send_xon) { + ew32(FCRTL, (hw->fc_low_water | E1000_FCRTL_XONE)); + ew32(FCRTH, hw->fc_high_water); + } else { + ew32(FCRTL, hw->fc_low_water); + ew32(FCRTH, hw->fc_high_water); + } + } + return ret_val; +} + +/** + * e1000_setup_fiber_serdes_link - prepare fiber or serdes link + * @hw: Struct containing variables accessed by shared code + * + * Manipulates Physical Coding Sublayer functions in order to configure + * link. Assumes the hardware has been previously reset and the transmitter + * and receiver are not enabled. + */ +static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw) +{ + u32 ctrl; + u32 status; + u32 txcw = 0; + u32 i; + u32 signal = 0; + s32 ret_val; + + DEBUGFUNC("e1000_setup_fiber_serdes_link"); + + /* On adapters with a MAC newer than 82544, SWDP 1 will be + * set when the optics detect a signal. On older adapters, it will be + * cleared when there is a signal. This applies to fiber media only. + * If we're on serdes media, adjust the output amplitude to value + * set in the EEPROM. + */ + ctrl = er32(CTRL); + if (hw->media_type == e1000_media_type_fiber) + signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; + + ret_val = e1000_adjust_serdes_amplitude(hw); + if (ret_val) + return ret_val; + + /* Take the link out of reset */ + ctrl &= ~(E1000_CTRL_LRST); + + /* Adjust VCO speed to improve BER performance */ + ret_val = e1000_set_vco_speed(hw); + if (ret_val) + return ret_val; + + e1000_config_collision_dist(hw); + + /* Check for a software override of the flow control settings, and setup + * the device accordingly. If auto-negotiation is enabled, then software + * will have to set the "PAUSE" bits to the correct value in the Tranmsit + * Config Word Register (TXCW) and re-start auto-negotiation. However, if + * auto-negotiation is disabled, then software will have to manually + * configure the two flow control enable bits in the CTRL register. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames, but + * not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames but we do + * not support receiving pause frames). + * 3: Both Rx and TX flow control (symmetric) are enabled. + */ + switch (hw->fc) { + case E1000_FC_NONE: + /* Flow control is completely disabled by a software over-ride. */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); + break; + case E1000_FC_RX_PAUSE: + /* RX Flow control is enabled and TX Flow control is disabled by a + * software over-ride. Since there really isn't a way to advertise + * that we are capable of RX Pause ONLY, we will advertise that we + * support both symmetric and asymmetric RX PAUSE. Later, we will + * disable the adapter's ability to send PAUSE frames. + */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); + break; + case E1000_FC_TX_PAUSE: + /* TX Flow control is enabled, and RX Flow control is disabled, by a + * software over-ride. + */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR); + break; + case E1000_FC_FULL: + /* Flow control (both RX and TX) is enabled by a software over-ride. */ + txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + break; + } + + /* Since auto-negotiation is enabled, take the link out of reset (the link + * will be in reset, because we previously reset the chip). This will + * restart auto-negotiation. If auto-negotiation is successful then the + * link-up status bit will be set and the flow control enable bits (RFCE + * and TFCE) will be set according to their negotiated value. + */ + DEBUGOUT("Auto-negotiation enabled\n"); + + ew32(TXCW, txcw); + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + hw->txcw = txcw; + msleep(1); + + /* If we have a signal (the cable is plugged in) then poll for a "Link-Up" + * indication in the Device Status Register. Time-out if a link isn't + * seen in 500 milliseconds seconds (Auto-negotiation should complete in + * less than 500 milliseconds even if the other end is doing it in SW). + * For internal serdes, we just assume a signal is present, then poll. + */ + if (hw->media_type == e1000_media_type_internal_serdes || + (er32(CTRL) & E1000_CTRL_SWDPIN1) == signal) { + DEBUGOUT("Looking for Link\n"); + for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) { + msleep(10); + status = er32(STATUS); + if (status & E1000_STATUS_LU) + break; + } + if (i == (LINK_UP_TIMEOUT / 10)) { + DEBUGOUT("Never got a valid link from auto-neg!!!\n"); + hw->autoneg_failed = 1; + /* AutoNeg failed to achieve a link, so we'll call + * e1000_check_for_link. This routine will force the link up if + * we detect a signal. This will allow us to communicate with + * non-autonegotiating link partners. + */ + ret_val = e1000_check_for_link(hw); + if (ret_val) { + DEBUGOUT("Error while checking for link\n"); + return ret_val; + } + hw->autoneg_failed = 0; + } else { + hw->autoneg_failed = 0; + DEBUGOUT("Valid Link Found\n"); + } + } else { + DEBUGOUT("No Signal Detected\n"); + } + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_preconfig - early configuration for copper + * @hw: Struct containing variables accessed by shared code + * + * Make sure we have a valid PHY and change PHY mode before link setup. + */ +static s32 e1000_copper_link_preconfig(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_preconfig"); + + ctrl = er32(CTRL); + /* With 82543, we need to force speed and duplex on the MAC equal to what + * the PHY speed and duplex configuration is. In addition, we need to + * perform a hardware reset on the PHY to take it out of reset. + */ + if (hw->mac_type > e1000_82543) { + ctrl |= E1000_CTRL_SLU; + ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ew32(CTRL, ctrl); + } else { + ctrl |= + (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU); + ew32(CTRL, ctrl); + ret_val = e1000_phy_hw_reset(hw); + if (ret_val) + return ret_val; + } + + /* Make sure we have a valid PHY */ + ret_val = e1000_detect_gig_phy(hw); + if (ret_val) { + DEBUGOUT("Error, did not detect valid phy.\n"); + return ret_val; + } + DEBUGOUT1("Phy ID = %x \n", hw->phy_id); + + /* Set PHY to class A mode (if necessary) */ + ret_val = e1000_set_phy_mode(hw); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82545_rev_3) || + (hw->mac_type == e1000_82546_rev_3)) { + ret_val = + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + phy_data |= 0x00000008; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + } + + if (hw->mac_type <= e1000_82543 || + hw->mac_type == e1000_82541 || hw->mac_type == e1000_82547 || + hw->mac_type == e1000_82541_rev_2 + || hw->mac_type == e1000_82547_rev_2) + hw->phy_reset_disable = false; + + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_igp_setup - Copper link setup for e1000_phy_igp series. + * @hw: Struct containing variables accessed by shared code + */ +static s32 e1000_copper_link_igp_setup(struct e1000_hw *hw) +{ + u32 led_ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_igp_setup"); + + if (hw->phy_reset_disable) + return E1000_SUCCESS; + + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + + /* Wait 15ms for MAC to configure PHY from eeprom settings */ + msleep(15); + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + + /* The NVM settings will configure LPLU in D3 for IGP2 and IGP3 PHYs */ + if (hw->phy_type == e1000_phy_igp) { + /* disable lplu d3 during driver init */ + ret_val = e1000_set_d3_lplu_state(hw, false); + if (ret_val) { + DEBUGOUT("Error Disabling LPLU D3\n"); + return ret_val; + } + } + + /* Configure mdi-mdix settings */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + hw->dsp_config_state = e1000_dsp_config_disabled; + /* Force MDI for earlier revs of the IGP PHY */ + phy_data &= + ~(IGP01E1000_PSCR_AUTO_MDIX | + IGP01E1000_PSCR_FORCE_MDI_MDIX); + hw->mdix = 1; + + } else { + hw->dsp_config_state = e1000_dsp_config_enabled; + phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; + + switch (hw->mdix) { + case 1: + phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; + break; + case 2: + phy_data |= IGP01E1000_PSCR_FORCE_MDI_MDIX; + break; + case 0: + default: + phy_data |= IGP01E1000_PSCR_AUTO_MDIX; + break; + } + } + ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* set auto-master slave resolution settings */ + if (hw->autoneg) { + e1000_ms_type phy_ms_setting = hw->master_slave; + + if (hw->ffe_config_state == e1000_ffe_config_active) + hw->ffe_config_state = e1000_ffe_config_enabled; + + if (hw->dsp_config_state == e1000_dsp_config_activated) + hw->dsp_config_state = e1000_dsp_config_enabled; + + /* when autonegotiation advertisement is only 1000Mbps then we + * should disable SmartSpeed and enable Auto MasterSlave + * resolution as hardware default. */ + if (hw->autoneg_advertised == ADVERTISE_1000_FULL) { + /* Disable SmartSpeed */ + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + /* Set auto Master/Slave resolution process */ + ret_val = + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); + if (ret_val) + return ret_val; + phy_data &= ~CR_1000T_MS_ENABLE; + ret_val = + e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); + if (ret_val) + return ret_val; + + /* load defaults for future use */ + hw->original_master_slave = (phy_data & CR_1000T_MS_ENABLE) ? + ((phy_data & CR_1000T_MS_VALUE) ? + e1000_ms_force_master : + e1000_ms_force_slave) : e1000_ms_auto; + + switch (phy_ms_setting) { + case e1000_ms_force_master: + phy_data |= (CR_1000T_MS_ENABLE | CR_1000T_MS_VALUE); + break; + case e1000_ms_force_slave: + phy_data |= CR_1000T_MS_ENABLE; + phy_data &= ~(CR_1000T_MS_VALUE); + break; + case e1000_ms_auto: + phy_data &= ~CR_1000T_MS_ENABLE; + default: + break; + } + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_mgp_setup - Copper link setup for e1000_phy_m88 series. + * @hw: Struct containing variables accessed by shared code + */ +static s32 e1000_copper_link_mgp_setup(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_mgp_setup"); + + if (hw->phy_reset_disable) + return E1000_SUCCESS; + + /* Enable CRS on TX. This must be set for half-duplex operation. */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + + /* Options: + * MDI/MDI-X = 0 (default) + * 0 - Auto for all speeds + * 1 - MDI mode + * 2 - MDI-X mode + * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) + */ + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + + switch (hw->mdix) { + case 1: + phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE; + break; + case 2: + phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE; + break; + case 3: + phy_data |= M88E1000_PSCR_AUTO_X_1000T; + break; + case 0: + default: + phy_data |= M88E1000_PSCR_AUTO_X_MODE; + break; + } + + /* Options: + * disable_polarity_correction = 0 (default) + * Automatic Correction for Reversed Cable Polarity + * 0 - Disabled + * 1 - Enabled + */ + phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL; + if (hw->disable_polarity_correction == 1) + phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + if (hw->phy_revision < M88E1011_I_REV_4) { + /* Force TX_CLK in the Extended PHY Specific Control Register + * to 25MHz clock. + */ + ret_val = + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_EPSCR_TX_CLK_25; + + if ((hw->phy_revision == E1000_REVISION_2) && + (hw->phy_id == M88E1111_I_PHY_ID)) { + /* Vidalia Phy, set the downshift counter to 5x */ + phy_data &= ~(M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK); + phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X; + ret_val = e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, + phy_data); + if (ret_val) + return ret_val; + } else { + /* Configure Master and Slave downshift values */ + phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK | + M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK); + phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X | + M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X); + ret_val = e1000_write_phy_reg(hw, + M88E1000_EXT_PHY_SPEC_CTRL, + phy_data); + if (ret_val) + return ret_val; + } + } + + /* SW Reset the PHY so all changes take effect */ + ret_val = e1000_phy_reset(hw); + if (ret_val) { + DEBUGOUT("Error Resetting the PHY\n"); + return ret_val; + } + + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_autoneg - setup auto-neg + * @hw: Struct containing variables accessed by shared code + * + * Setup auto-negotiation and flow control advertisements, + * and then perform auto-negotiation. + */ +static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_copper_link_autoneg"); + + /* Perform some bounds checking on the hw->autoneg_advertised + * parameter. If this variable is zero, then set it to the default. + */ + hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT; + + /* If autoneg_advertised is zero, we assume it was not defaulted + * by the calling code so we set to advertise full capability. + */ + if (hw->autoneg_advertised == 0) + hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT; + + DEBUGOUT("Reconfiguring auto-neg advertisement params\n"); + ret_val = e1000_phy_setup_autoneg(hw); + if (ret_val) { + DEBUGOUT("Error Setting up Auto-Negotiation\n"); + return ret_val; + } + DEBUGOUT("Restarting Auto-Neg\n"); + + /* Restart auto-negotiation by setting the Auto Neg Enable bit and + * the Auto Neg Restart bit in the PHY control register. + */ + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG); + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); + if (ret_val) + return ret_val; + + /* Does the user want to wait for Auto-Neg to complete here, or + * check at a later time (for example, callback routine). + */ + if (hw->wait_autoneg_complete) { + ret_val = e1000_wait_autoneg(hw); + if (ret_val) { + DEBUGOUT + ("Error while waiting for autoneg to complete\n"); + return ret_val; + } + } + + hw->get_link_status = true; + + return E1000_SUCCESS; +} + +/** + * e1000_copper_link_postconfig - post link setup + * @hw: Struct containing variables accessed by shared code + * + * Config the MAC and the PHY after link is up. + * 1) Set up the MAC to the current PHY speed/duplex + * if we are on 82543. If we + * are on newer silicon, we only need to configure + * collision distance in the Transmit Control Register. + * 2) Set up flow control on the MAC to that established with + * the link partner. + * 3) Config DSP to improve Gigabit link quality for some PHY revisions. + */ +static s32 e1000_copper_link_postconfig(struct e1000_hw *hw) +{ + s32 ret_val; + DEBUGFUNC("e1000_copper_link_postconfig"); + + if (hw->mac_type >= e1000_82544) { + e1000_config_collision_dist(hw); + } else { + ret_val = e1000_config_mac_to_phy(hw); + if (ret_val) { + DEBUGOUT("Error configuring MAC to PHY settings\n"); + return ret_val; + } + } + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error Configuring Flow Control\n"); + return ret_val; + } + + /* Config DSP to improve Giga link quality */ + if (hw->phy_type == e1000_phy_igp) { + ret_val = e1000_config_dsp_after_link_change(hw, true); + if (ret_val) { + DEBUGOUT("Error Configuring DSP after link up\n"); + return ret_val; + } + } + + return E1000_SUCCESS; +} + +/** + * e1000_setup_copper_link - phy/speed/duplex setting + * @hw: Struct containing variables accessed by shared code + * + * Detects which PHY is present and sets up the speed and duplex + */ +static s32 e1000_setup_copper_link(struct e1000_hw *hw) +{ + s32 ret_val; + u16 i; + u16 phy_data; + + DEBUGFUNC("e1000_setup_copper_link"); + + /* Check if it is a valid PHY and set PHY mode if necessary. */ + ret_val = e1000_copper_link_preconfig(hw); + if (ret_val) + return ret_val; + + if (hw->phy_type == e1000_phy_igp) { + ret_val = e1000_copper_link_igp_setup(hw); + if (ret_val) + return ret_val; + } else if (hw->phy_type == e1000_phy_m88) { + ret_val = e1000_copper_link_mgp_setup(hw); + if (ret_val) + return ret_val; + } + + if (hw->autoneg) { + /* Setup autoneg and flow control advertisement + * and perform autonegotiation */ + ret_val = e1000_copper_link_autoneg(hw); + if (ret_val) + return ret_val; + } else { + /* PHY will be set to 10H, 10F, 100H,or 100F + * depending on value from forced_speed_duplex. */ + DEBUGOUT("Forcing speed and duplex\n"); + ret_val = e1000_phy_force_speed_duplex(hw); + if (ret_val) { + DEBUGOUT("Error Forcing Speed and Duplex\n"); + return ret_val; + } + } + + /* Check link status. Wait up to 100 microseconds for link to become + * valid. + */ + for (i = 0; i < 10; i++) { + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & MII_SR_LINK_STATUS) { + /* Config the MAC and PHY after link is up */ + ret_val = e1000_copper_link_postconfig(hw); + if (ret_val) + return ret_val; + + DEBUGOUT("Valid link established!!!\n"); + return E1000_SUCCESS; + } + udelay(10); + } + + DEBUGOUT("Unable to establish link!!!\n"); + return E1000_SUCCESS; +} + +/** + * e1000_phy_setup_autoneg - phy settings + * @hw: Struct containing variables accessed by shared code + * + * Configures PHY autoneg and flow control advertisement settings + */ +s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_autoneg_adv_reg; + u16 mii_1000t_ctrl_reg; + + DEBUGFUNC("e1000_phy_setup_autoneg"); + + /* Read the MII Auto-Neg Advertisement Register (Address 4). */ + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg); + if (ret_val) + return ret_val; + + /* Read the MII 1000Base-T Control Register (Address 9). */ + ret_val = + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; + + /* Need to parse both autoneg_advertised and fc and set up + * the appropriate PHY registers. First we will parse for + * autoneg_advertised software override. Since we can advertise + * a plethora of combinations, we need to check each bit + * individually. + */ + + /* First we clear all the 10/100 mb speed bits in the Auto-Neg + * Advertisement Register (Address 4) and the 1000 mb speed bits in + * the 1000Base-T Control Register (Address 9). + */ + mii_autoneg_adv_reg &= ~REG4_SPEED_MASK; + mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK; + + DEBUGOUT1("autoneg_advertised %x\n", hw->autoneg_advertised); + + /* Do we want to advertise 10 Mb Half Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_10_HALF) { + DEBUGOUT("Advertise 10mb Half duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS; + } + + /* Do we want to advertise 10 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_10_FULL) { + DEBUGOUT("Advertise 10mb Full duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS; + } + + /* Do we want to advertise 100 Mb Half Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_100_HALF) { + DEBUGOUT("Advertise 100mb Half duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS; + } + + /* Do we want to advertise 100 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_100_FULL) { + DEBUGOUT("Advertise 100mb Full duplex\n"); + mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS; + } + + /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ + if (hw->autoneg_advertised & ADVERTISE_1000_HALF) { + DEBUGOUT + ("Advertise 1000mb Half duplex requested, request denied!\n"); + } + + /* Do we want to advertise 1000 Mb Full Duplex? */ + if (hw->autoneg_advertised & ADVERTISE_1000_FULL) { + DEBUGOUT("Advertise 1000mb Full duplex\n"); + mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS; + } + + /* Check for a software override of the flow control settings, and + * setup the PHY advertisement registers accordingly. If + * auto-negotiation is enabled, then software will have to set the + * "PAUSE" bits to the correct value in the Auto-Negotiation + * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause frames + * but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames + * but we do not support receiving pause frames). + * 3: Both Rx and TX flow control (symmetric) are enabled. + * other: No software override. The flow control configuration + * in the EEPROM is used. + */ + switch (hw->fc) { + case E1000_FC_NONE: /* 0 */ + /* Flow control (RX & TX) is completely disabled by a + * software over-ride. + */ + mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + case E1000_FC_RX_PAUSE: /* 1 */ + /* RX Flow control is enabled, and TX Flow control is + * disabled, by a software over-ride. + */ + /* Since there really isn't a way to advertise that we are + * capable of RX Pause ONLY, we will advertise that we + * support both symmetric and asymmetric RX PAUSE. Later + * (in e1000_config_fc_after_link_up) we will disable the + *hw's ability to send PAUSE frames. + */ + mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + case E1000_FC_TX_PAUSE: /* 2 */ + /* TX Flow control is enabled, and RX Flow control is + * disabled, by a software over-ride. + */ + mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR; + mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE; + break; + case E1000_FC_FULL: /* 3 */ + /* Flow control (both RX and TX) is enabled by a software + * over-ride. + */ + mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + } + + ret_val = e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg); + if (ret_val) + return ret_val; + + DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg); + + ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg); + if (ret_val) + return ret_val; + + return E1000_SUCCESS; +} + +/** + * e1000_phy_force_speed_duplex - force link settings + * @hw: Struct containing variables accessed by shared code + * + * Force PHY speed and duplex settings to hw->forced_speed_duplex + */ +static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 mii_ctrl_reg; + u16 mii_status_reg; + u16 phy_data; + u16 i; + + DEBUGFUNC("e1000_phy_force_speed_duplex"); + + /* Turn off Flow control if we are forcing speed and duplex. */ + hw->fc = E1000_FC_NONE; + + DEBUGOUT1("hw->fc = %d\n", hw->fc); + + /* Read the Device Control Register. */ + ctrl = er32(CTRL); + + /* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */ + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ctrl &= ~(DEVICE_SPEED_MASK); + + /* Clear the Auto Speed Detect Enable bit. */ + ctrl &= ~E1000_CTRL_ASDE; + + /* Read the MII Control Register. */ + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &mii_ctrl_reg); + if (ret_val) + return ret_val; + + /* We need to disable autoneg in order to force link and duplex. */ + + mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN; + + /* Are we forcing Full or Half Duplex? */ + if (hw->forced_speed_duplex == e1000_100_full || + hw->forced_speed_duplex == e1000_10_full) { + /* We want to force full duplex so we SET the full duplex bits in the + * Device and MII Control Registers. + */ + ctrl |= E1000_CTRL_FD; + mii_ctrl_reg |= MII_CR_FULL_DUPLEX; + DEBUGOUT("Full Duplex\n"); + } else { + /* We want to force half duplex so we CLEAR the full duplex bits in + * the Device and MII Control Registers. + */ + ctrl &= ~E1000_CTRL_FD; + mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX; + DEBUGOUT("Half Duplex\n"); + } + + /* Are we forcing 100Mbps??? */ + if (hw->forced_speed_duplex == e1000_100_full || + hw->forced_speed_duplex == e1000_100_half) { + /* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */ + ctrl |= E1000_CTRL_SPD_100; + mii_ctrl_reg |= MII_CR_SPEED_100; + mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10); + DEBUGOUT("Forcing 100mb "); + } else { + /* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */ + ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); + mii_ctrl_reg |= MII_CR_SPEED_10; + mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100); + DEBUGOUT("Forcing 10mb "); + } + + e1000_config_collision_dist(hw); + + /* Write the configured values back to the Device Control Reg. */ + ew32(CTRL, ctrl); + + if (hw->phy_type == e1000_phy_m88) { + ret_val = + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI + * forced whenever speed are duplex are forced. + */ + phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data); + + /* Need to reset the PHY or these changes will be ignored */ + mii_ctrl_reg |= MII_CR_RESET; + + /* Disable MDI-X support for 10/100 */ + } else { + /* Clear Auto-Crossover to force MDI manually. IGP requires MDI + * forced whenever speed or duplex are forced. + */ + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; + phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; + + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); + if (ret_val) + return ret_val; + } + + /* Write back the modified PHY MII control register. */ + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, mii_ctrl_reg); + if (ret_val) + return ret_val; + + udelay(1); + + /* The wait_autoneg_complete flag may be a little misleading here. + * Since we are forcing speed and duplex, Auto-Neg is not enabled. + * But we do want to delay for a period while forcing only so we + * don't generate false No Link messages. So we will wait here + * only if the user has set wait_autoneg_complete to 1, which is + * the default. + */ + if (hw->wait_autoneg_complete) { + /* We will wait for autoneg to complete. */ + DEBUGOUT("Waiting for forced speed/duplex link.\n"); + mii_status_reg = 0; + + /* We will wait for autoneg to complete or 4.5 seconds to expire. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Auto-Neg Complete bit + * to be set. + */ + ret_val = + e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = + e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_LINK_STATUS) + break; + msleep(100); + } + if ((i == 0) && (hw->phy_type == e1000_phy_m88)) { + /* We didn't get link. Reset the DSP and wait again for link. */ + ret_val = e1000_phy_reset_dsp(hw); + if (ret_val) { + DEBUGOUT("Error Resetting PHY DSP\n"); + return ret_val; + } + } + /* This loop will early-out if the link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + if (mii_status_reg & MII_SR_LINK_STATUS) + break; + msleep(100); + /* Read the MII Status Register and wait for Auto-Neg Complete bit + * to be set. + */ + ret_val = + e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = + e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + } + } + + if (hw->phy_type == e1000_phy_m88) { + /* Because we reset the PHY above, we need to re-force TX_CLK in the + * Extended PHY Specific Control Register to 25MHz clock. This value + * defaults back to a 2.5MHz clock when the PHY is reset. + */ + ret_val = + e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_EPSCR_TX_CLK_25; + ret_val = + e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, + phy_data); + if (ret_val) + return ret_val; + + /* In addition, because of the s/w reset above, we need to enable CRS on + * TX. This must be set for both full and half duplex operation. + */ + ret_val = + e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); + if (ret_val) + return ret_val; + + if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) + && (!hw->autoneg) + && (hw->forced_speed_duplex == e1000_10_full + || hw->forced_speed_duplex == e1000_10_half)) { + ret_val = e1000_polarity_reversal_workaround(hw); + if (ret_val) + return ret_val; + } + } + return E1000_SUCCESS; +} + +/** + * e1000_config_collision_dist - set collision distance register + * @hw: Struct containing variables accessed by shared code + * + * Sets the collision distance in the Transmit Control register. + * Link should have been established previously. Reads the speed and duplex + * information from the Device Status register. + */ +void e1000_config_collision_dist(struct e1000_hw *hw) +{ + u32 tctl, coll_dist; + + DEBUGFUNC("e1000_config_collision_dist"); + + if (hw->mac_type < e1000_82543) + coll_dist = E1000_COLLISION_DISTANCE_82542; + else + coll_dist = E1000_COLLISION_DISTANCE; + + tctl = er32(TCTL); + + tctl &= ~E1000_TCTL_COLD; + tctl |= coll_dist << E1000_COLD_SHIFT; + + ew32(TCTL, tctl); + E1000_WRITE_FLUSH(); +} + +/** + * e1000_config_mac_to_phy - sync phy and mac settings + * @hw: Struct containing variables accessed by shared code + * @mii_reg: data to write to the MII control register + * + * Sets MAC speed and duplex settings to reflect the those in the PHY + * The contents of the PHY register containing the needed information need to + * be passed in. + */ +static s32 e1000_config_mac_to_phy(struct e1000_hw *hw) +{ + u32 ctrl; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_config_mac_to_phy"); + + /* 82544 or newer MAC, Auto Speed Detection takes care of + * MAC speed/duplex configuration.*/ + if (hw->mac_type >= e1000_82544) + return E1000_SUCCESS; + + /* Read the Device Control Register and set the bits to Force Speed + * and Duplex. + */ + ctrl = er32(CTRL); + ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); + ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS); + + /* Set up duplex in the Device Control and Transmit Control + * registers depending on negotiated values. + */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & M88E1000_PSSR_DPLX) + ctrl |= E1000_CTRL_FD; + else + ctrl &= ~E1000_CTRL_FD; + + e1000_config_collision_dist(hw); + + /* Set up speed in the Device Control register depending on + * negotiated values. + */ + if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) + ctrl |= E1000_CTRL_SPD_1000; + else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS) + ctrl |= E1000_CTRL_SPD_100; + + /* Write the configured values back to the Device Control Reg. */ + ew32(CTRL, ctrl); + return E1000_SUCCESS; +} + +/** + * e1000_force_mac_fc - force flow control settings + * @hw: Struct containing variables accessed by shared code + * + * Forces the MAC's flow control settings. + * Sets the TFCE and RFCE bits in the device control register to reflect + * the adapter settings. TFCE and RFCE need to be explicitly set by + * software when a Copper PHY is used because autonegotiation is managed + * by the PHY rather than the MAC. Software must also configure these + * bits when link is forced on a fiber connection. + */ +s32 e1000_force_mac_fc(struct e1000_hw *hw) +{ + u32 ctrl; + + DEBUGFUNC("e1000_force_mac_fc"); + + /* Get the current configuration of the Device Control Register */ + ctrl = er32(CTRL); + + /* Because we didn't get link via the internal auto-negotiation + * mechanism (we either forced link or we got link via PHY + * auto-neg), we have to manually enable/disable transmit an + * receive flow control. + * + * The "Case" statement below enables/disable flow control + * according to the "hw->fc" parameter. + * + * The possible values of the "fc" parameter are: + * 0: Flow control is completely disabled + * 1: Rx flow control is enabled (we can receive pause + * frames but not send pause frames). + * 2: Tx flow control is enabled (we can send pause frames + * frames but we do not receive pause frames). + * 3: Both Rx and TX flow control (symmetric) is enabled. + * other: No other values should be possible at this point. + */ + + switch (hw->fc) { + case E1000_FC_NONE: + ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE)); + break; + case E1000_FC_RX_PAUSE: + ctrl &= (~E1000_CTRL_TFCE); + ctrl |= E1000_CTRL_RFCE; + break; + case E1000_FC_TX_PAUSE: + ctrl &= (~E1000_CTRL_RFCE); + ctrl |= E1000_CTRL_TFCE; + break; + case E1000_FC_FULL: + ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE); + break; + default: + DEBUGOUT("Flow control param set incorrectly\n"); + return -E1000_ERR_CONFIG; + } + + /* Disable TX Flow Control for 82542 (rev 2.0) */ + if (hw->mac_type == e1000_82542_rev2_0) + ctrl &= (~E1000_CTRL_TFCE); + + ew32(CTRL, ctrl); + return E1000_SUCCESS; +} + +/** + * e1000_config_fc_after_link_up - configure flow control after autoneg + * @hw: Struct containing variables accessed by shared code + * + * Configures flow control settings after link is established + * Should be called immediately after a valid link has been established. + * Forces MAC flow control settings if link was forced. When in MII/GMII mode + * and autonegotiation is enabled, the MAC flow control settings will be set + * based on the flow control negotiated by the PHY. In TBI mode, the TFCE + * and RFCE bits will be automatically set to the negotiated flow control mode. + */ +static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_status_reg; + u16 mii_nway_adv_reg; + u16 mii_nway_lp_ability_reg; + u16 speed; + u16 duplex; + + DEBUGFUNC("e1000_config_fc_after_link_up"); + + /* Check for the case where we have fiber media and auto-neg failed + * so we had to force link. In this case, we need to force the + * configuration of the MAC to match the "fc" parameter. + */ + if (((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) + || ((hw->media_type == e1000_media_type_internal_serdes) + && (hw->autoneg_failed)) + || ((hw->media_type == e1000_media_type_copper) + && (!hw->autoneg))) { + ret_val = e1000_force_mac_fc(hw); + if (ret_val) { + DEBUGOUT("Error forcing flow control settings\n"); + return ret_val; + } + } + + /* Check for the case where we have copper media and auto-neg is + * enabled. In this case, we need to check and see if Auto-Neg + * has completed, and if so, how the PHY and link partner has + * flow control configured. + */ + if ((hw->media_type == e1000_media_type_copper) && hw->autoneg) { + /* Read the MII Status Register and check to see if AutoNeg + * has completed. We read this twice because this reg has + * some "sticky" (latched) bits. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) { + /* The AutoNeg process has completed, so we now need to + * read both the Auto Negotiation Advertisement Register + * (Address 4) and the Auto_Negotiation Base Page Ability + * Register (Address 5) to determine how flow control was + * negotiated. + */ + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, + &mii_nway_adv_reg); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, + &mii_nway_lp_ability_reg); + if (ret_val) + return ret_val; + + /* Two bits in the Auto Negotiation Advertisement Register + * (Address 4) and two bits in the Auto Negotiation Base + * Page Ability Register (Address 5) determine flow control + * for both the PHY and the link partner. The following + * table, taken out of the IEEE 802.3ab/D6.0 dated March 25, + * 1999, describes these PAUSE resolution bits and how flow + * control is determined based upon these settings. + * NOTE: DC = Don't Care + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution + *-------|---------|-------|---------|-------------------- + * 0 | 0 | DC | DC | E1000_FC_NONE + * 0 | 1 | 0 | DC | E1000_FC_NONE + * 0 | 1 | 1 | 0 | E1000_FC_NONE + * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE + * 1 | 0 | 0 | DC | E1000_FC_NONE + * 1 | DC | 1 | DC | E1000_FC_FULL + * 1 | 1 | 0 | 0 | E1000_FC_NONE + * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE + * + */ + /* Are both PAUSE bits set to 1? If so, this implies + * Symmetric Flow Control is enabled at both ends. The + * ASM_DIR bits are irrelevant per the spec. + * + * For Symmetric Flow Control: + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 1 | DC | 1 | DC | E1000_FC_FULL + * + */ + if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) { + /* Now we need to check if the user selected RX ONLY + * of pause frames. In this case, we had to advertise + * FULL flow control because we could not advertise RX + * ONLY. Hence, we must now check to see if we need to + * turn OFF the TRANSMISSION of PAUSE frames. + */ + if (hw->original_fc == E1000_FC_FULL) { + hw->fc = E1000_FC_FULL; + DEBUGOUT("Flow Control = FULL.\n"); + } else { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT + ("Flow Control = RX PAUSE frames only.\n"); + } + } + /* For receiving PAUSE frames ONLY. + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE + * + */ + else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && + (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) + { + hw->fc = E1000_FC_TX_PAUSE; + DEBUGOUT + ("Flow Control = TX PAUSE frames only.\n"); + } + /* For transmitting PAUSE frames ONLY. + * + * LOCAL DEVICE | LINK PARTNER + * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result + *-------|---------|-------|---------|-------------------- + * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE + * + */ + else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && + (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && + !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && + (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) + { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT + ("Flow Control = RX PAUSE frames only.\n"); + } + /* Per the IEEE spec, at this point flow control should be + * disabled. However, we want to consider that we could + * be connected to a legacy switch that doesn't advertise + * desired flow control, but can be forced on the link + * partner. So if we advertised no flow control, that is + * what we will resolve to. If we advertised some kind of + * receive capability (Rx Pause Only or Full Flow Control) + * and the link partner advertised none, we will configure + * ourselves to enable Rx Flow Control only. We can do + * this safely for two reasons: If the link partner really + * didn't want flow control enabled, and we enable Rx, no + * harm done since we won't be receiving any PAUSE frames + * anyway. If the intent on the link partner was to have + * flow control enabled, then by us enabling RX only, we + * can at least receive pause frames and process them. + * This is a good idea because in most cases, since we are + * predominantly a server NIC, more times than not we will + * be asked to delay transmission of packets than asking + * our link partner to pause transmission of frames. + */ + else if ((hw->original_fc == E1000_FC_NONE || + hw->original_fc == E1000_FC_TX_PAUSE) || + hw->fc_strict_ieee) { + hw->fc = E1000_FC_NONE; + DEBUGOUT("Flow Control = NONE.\n"); + } else { + hw->fc = E1000_FC_RX_PAUSE; + DEBUGOUT + ("Flow Control = RX PAUSE frames only.\n"); + } + + /* Now we need to do one last check... If we auto- + * negotiated to HALF DUPLEX, flow control should not be + * enabled per IEEE 802.3 spec. + */ + ret_val = + e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT + ("Error getting link speed and duplex\n"); + return ret_val; + } + + if (duplex == HALF_DUPLEX) + hw->fc = E1000_FC_NONE; + + /* Now we call a subroutine to actually force the MAC + * controller to use the correct flow control settings. + */ + ret_val = e1000_force_mac_fc(hw); + if (ret_val) { + DEBUGOUT + ("Error forcing flow control settings\n"); + return ret_val; + } + } else { + DEBUGOUT + ("Copper PHY and Auto Neg has not completed.\n"); + } + } + return E1000_SUCCESS; +} + +/** + * e1000_check_for_serdes_link_generic - Check for link (Serdes) + * @hw: pointer to the HW structure + * + * Checks for link up on the hardware. If link is not up and we have + * a signal, then we need to force link up. + */ +static s32 e1000_check_for_serdes_link_generic(struct e1000_hw *hw) +{ + u32 rxcw; + u32 ctrl; + u32 status; + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_check_for_serdes_link_generic"); + + ctrl = er32(CTRL); + status = er32(STATUS); + rxcw = er32(RXCW); + + /* + * If we don't have link (auto-negotiation failed or link partner + * cannot auto-negotiate), and our link partner is not trying to + * auto-negotiate with us (we are receiving idles or data), + * we need to force link up. We also need to give auto-negotiation + * time to complete. + */ + /* (ctrl & E1000_CTRL_SWDPIN1) == 1 == have signal */ + if ((!(status & E1000_STATUS_LU)) && (!(rxcw & E1000_RXCW_C))) { + if (hw->autoneg_failed == 0) { + hw->autoneg_failed = 1; + goto out; + } + DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n"); + + /* Disable auto-negotiation in the TXCW register */ + ew32(TXCW, (hw->txcw & ~E1000_TXCW_ANE)); + + /* Force link-up and also force full-duplex. */ + ctrl = er32(CTRL); + ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD); + ew32(CTRL, ctrl); + + /* Configure Flow Control after forcing link up. */ + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error configuring flow control\n"); + goto out; + } + } else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { + /* + * If we are forcing link and we are receiving /C/ ordered + * sets, re-enable auto-negotiation in the TXCW register + * and disable forced link in the Device Control register + * in an attempt to auto-negotiate with our link partner. + */ + DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n"); + ew32(TXCW, hw->txcw); + ew32(CTRL, (ctrl & ~E1000_CTRL_SLU)); + + hw->serdes_has_link = true; + } else if (!(E1000_TXCW_ANE & er32(TXCW))) { + /* + * If we force link for non-auto-negotiation switch, check + * link status based on MAC synchronization for internal + * serdes media type. + */ + /* SYNCH bit and IV bit are sticky. */ + udelay(10); + rxcw = er32(RXCW); + if (rxcw & E1000_RXCW_SYNCH) { + if (!(rxcw & E1000_RXCW_IV)) { + hw->serdes_has_link = true; + DEBUGOUT("SERDES: Link up - forced.\n"); + } + } else { + hw->serdes_has_link = false; + DEBUGOUT("SERDES: Link down - force failed.\n"); + } + } + + if (E1000_TXCW_ANE & er32(TXCW)) { + status = er32(STATUS); + if (status & E1000_STATUS_LU) { + /* SYNCH bit and IV bit are sticky, so reread rxcw. */ + udelay(10); + rxcw = er32(RXCW); + if (rxcw & E1000_RXCW_SYNCH) { + if (!(rxcw & E1000_RXCW_IV)) { + hw->serdes_has_link = true; + DEBUGOUT("SERDES: Link up - autoneg " + "completed successfully.\n"); + } else { + hw->serdes_has_link = false; + DEBUGOUT("SERDES: Link down - invalid" + "codewords detected in autoneg.\n"); + } + } else { + hw->serdes_has_link = false; + DEBUGOUT("SERDES: Link down - no sync.\n"); + } + } else { + hw->serdes_has_link = false; + DEBUGOUT("SERDES: Link down - autoneg failed\n"); + } + } + + out: + return ret_val; +} + +/** + * e1000_check_for_link + * @hw: Struct containing variables accessed by shared code + * + * Checks to see if the link status of the hardware has changed. + * Called by any function that needs to check the link status of the adapter. + */ +s32 e1000_check_for_link(struct e1000_hw *hw) +{ + u32 rxcw = 0; + u32 ctrl; + u32 status; + u32 rctl; + u32 icr; + u32 signal = 0; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_for_link"); + + ctrl = er32(CTRL); + status = er32(STATUS); + + /* On adapters with a MAC newer than 82544, SW Definable pin 1 will be + * set when the optics detect a signal. On older adapters, it will be + * cleared when there is a signal. This applies to fiber media only. + */ + if ((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) { + rxcw = er32(RXCW); + + if (hw->media_type == e1000_media_type_fiber) { + signal = + (hw->mac_type > + e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; + if (status & E1000_STATUS_LU) + hw->get_link_status = false; + } + } + + /* If we have a copper PHY then we only want to go out to the PHY + * registers to see if Auto-Neg has completed and/or if our link + * status has changed. The get_link_status flag will be set if we + * receive a Link Status Change interrupt or we have Rx Sequence + * Errors. + */ + if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) { + /* First we want to see if the MII Status Register reports + * link. If so, then we want to get the current speed/duplex + * of the PHY. + * Read the register twice since the link bit is sticky. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if (phy_data & MII_SR_LINK_STATUS) { + hw->get_link_status = false; + /* Check if there was DownShift, must be checked immediately after + * link-up */ + e1000_check_downshift(hw); + + /* If we are on 82544 or 82543 silicon and speed/duplex + * are forced to 10H or 10F, then we will implement the polarity + * reversal workaround. We disable interrupts first, and upon + * returning, place the devices interrupt state to its previous + * value except for the link status change interrupt which will + * happen due to the execution of this workaround. + */ + + if ((hw->mac_type == e1000_82544 + || hw->mac_type == e1000_82543) && (!hw->autoneg) + && (hw->forced_speed_duplex == e1000_10_full + || hw->forced_speed_duplex == e1000_10_half)) { + ew32(IMC, 0xffffffff); + ret_val = + e1000_polarity_reversal_workaround(hw); + icr = er32(ICR); + ew32(ICS, (icr & ~E1000_ICS_LSC)); + ew32(IMS, IMS_ENABLE_MASK); + } + + } else { + /* No link detected */ + e1000_config_dsp_after_link_change(hw, false); + return 0; + } + + /* If we are forcing speed/duplex, then we simply return since + * we have already determined whether we have link or not. + */ + if (!hw->autoneg) + return -E1000_ERR_CONFIG; + + /* optimize the dsp settings for the igp phy */ + e1000_config_dsp_after_link_change(hw, true); + + /* We have a M88E1000 PHY and Auto-Neg is enabled. If we + * have Si on board that is 82544 or newer, Auto + * Speed Detection takes care of MAC speed/duplex + * configuration. So we only need to configure Collision + * Distance in the MAC. Otherwise, we need to force + * speed/duplex on the MAC to the current PHY speed/duplex + * settings. + */ + if (hw->mac_type >= e1000_82544) + e1000_config_collision_dist(hw); + else { + ret_val = e1000_config_mac_to_phy(hw); + if (ret_val) { + DEBUGOUT + ("Error configuring MAC to PHY settings\n"); + return ret_val; + } + } + + /* Configure Flow Control now that Auto-Neg has completed. First, we + * need to restore the desired flow control settings because we may + * have had to re-autoneg with a different link partner. + */ + ret_val = e1000_config_fc_after_link_up(hw); + if (ret_val) { + DEBUGOUT("Error configuring flow control\n"); + return ret_val; + } + + /* At this point we know that we are on copper and we have + * auto-negotiated link. These are conditions for checking the link + * partner capability register. We use the link speed to determine if + * TBI compatibility needs to be turned on or off. If the link is not + * at gigabit speed, then TBI compatibility is not needed. If we are + * at gigabit speed, we turn on TBI compatibility. + */ + if (hw->tbi_compatibility_en) { + u16 speed, duplex; + ret_val = + e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT + ("Error getting link speed and duplex\n"); + return ret_val; + } + if (speed != SPEED_1000) { + /* If link speed is not set to gigabit speed, we do not need + * to enable TBI compatibility. + */ + if (hw->tbi_compatibility_on) { + /* If we previously were in the mode, turn it off. */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_SBP; + ew32(RCTL, rctl); + hw->tbi_compatibility_on = false; + } + } else { + /* If TBI compatibility is was previously off, turn it on. For + * compatibility with a TBI link partner, we will store bad + * packets. Some frames have an additional byte on the end and + * will look like CRC errors to to the hardware. + */ + if (!hw->tbi_compatibility_on) { + hw->tbi_compatibility_on = true; + rctl = er32(RCTL); + rctl |= E1000_RCTL_SBP; + ew32(RCTL, rctl); + } + } + } + } + + if ((hw->media_type == e1000_media_type_fiber) || + (hw->media_type == e1000_media_type_internal_serdes)) + e1000_check_for_serdes_link_generic(hw); + + return E1000_SUCCESS; +} + +/** + * e1000_get_speed_and_duplex + * @hw: Struct containing variables accessed by shared code + * @speed: Speed of the connection + * @duplex: Duplex setting of the connection + + * Detects the current speed and duplex settings of the hardware. + */ +s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 *speed, u16 *duplex) +{ + u32 status; + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_get_speed_and_duplex"); + + if (hw->mac_type >= e1000_82543) { + status = er32(STATUS); + if (status & E1000_STATUS_SPEED_1000) { + *speed = SPEED_1000; + DEBUGOUT("1000 Mbs, "); + } else if (status & E1000_STATUS_SPEED_100) { + *speed = SPEED_100; + DEBUGOUT("100 Mbs, "); + } else { + *speed = SPEED_10; + DEBUGOUT("10 Mbs, "); + } + + if (status & E1000_STATUS_FD) { + *duplex = FULL_DUPLEX; + DEBUGOUT("Full Duplex\n"); + } else { + *duplex = HALF_DUPLEX; + DEBUGOUT(" Half Duplex\n"); + } + } else { + DEBUGOUT("1000 Mbs, Full Duplex\n"); + *speed = SPEED_1000; + *duplex = FULL_DUPLEX; + } + + /* IGP01 PHY may advertise full duplex operation after speed downgrade even + * if it is operating at half duplex. Here we set the duplex settings to + * match the duplex in the link partner's capabilities. + */ + if (hw->phy_type == e1000_phy_igp && hw->speed_downgraded) { + ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &phy_data); + if (ret_val) + return ret_val; + + if (!(phy_data & NWAY_ER_LP_NWAY_CAPS)) + *duplex = HALF_DUPLEX; + else { + ret_val = + e1000_read_phy_reg(hw, PHY_LP_ABILITY, &phy_data); + if (ret_val) + return ret_val; + if ((*speed == SPEED_100 + && !(phy_data & NWAY_LPAR_100TX_FD_CAPS)) + || (*speed == SPEED_10 + && !(phy_data & NWAY_LPAR_10T_FD_CAPS))) + *duplex = HALF_DUPLEX; + } + } + + return E1000_SUCCESS; +} + +/** + * e1000_wait_autoneg + * @hw: Struct containing variables accessed by shared code + * + * Blocks until autoneg completes or times out (~4.5 seconds) + */ +static s32 e1000_wait_autoneg(struct e1000_hw *hw) +{ + s32 ret_val; + u16 i; + u16 phy_data; + + DEBUGFUNC("e1000_wait_autoneg"); + DEBUGOUT("Waiting for Auto-Neg to complete.\n"); + + /* We will wait for autoneg to complete or 4.5 seconds to expire. */ + for (i = PHY_AUTO_NEG_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Auto-Neg + * Complete bit to be set. + */ + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + if (phy_data & MII_SR_AUTONEG_COMPLETE) { + return E1000_SUCCESS; + } + msleep(100); + } + return E1000_SUCCESS; +} + +/** + * e1000_raise_mdi_clk - Raises the Management Data Clock + * @hw: Struct containing variables accessed by shared code + * @ctrl: Device control register's current value + */ +static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl) +{ + /* Raise the clock input to the Management Data Clock (by setting the MDC + * bit), and then delay 10 microseconds. + */ + ew32(CTRL, (*ctrl | E1000_CTRL_MDC)); + E1000_WRITE_FLUSH(); + udelay(10); +} + +/** + * e1000_lower_mdi_clk - Lowers the Management Data Clock + * @hw: Struct containing variables accessed by shared code + * @ctrl: Device control register's current value + */ +static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl) +{ + /* Lower the clock input to the Management Data Clock (by clearing the MDC + * bit), and then delay 10 microseconds. + */ + ew32(CTRL, (*ctrl & ~E1000_CTRL_MDC)); + E1000_WRITE_FLUSH(); + udelay(10); +} + +/** + * e1000_shift_out_mdi_bits - Shifts data bits out to the PHY + * @hw: Struct containing variables accessed by shared code + * @data: Data to send out to the PHY + * @count: Number of bits to shift out + * + * Bits are shifted out in MSB to LSB order. + */ +static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, u16 count) +{ + u32 ctrl; + u32 mask; + + /* We need to shift "count" number of bits out to the PHY. So, the value + * in the "data" parameter will be shifted out to the PHY one bit at a + * time. In order to do this, "data" must be broken down into bits. + */ + mask = 0x01; + mask <<= (count - 1); + + ctrl = er32(CTRL); + + /* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */ + ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR); + + while (mask) { + /* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and + * then raising and lowering the Management Data Clock. A "0" is + * shifted out to the PHY by setting the MDIO bit to "0" and then + * raising and lowering the clock. + */ + if (data & mask) + ctrl |= E1000_CTRL_MDIO; + else + ctrl &= ~E1000_CTRL_MDIO; + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + udelay(10); + + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + mask = mask >> 1; + } +} + +/** + * e1000_shift_in_mdi_bits - Shifts data bits in from the PHY + * @hw: Struct containing variables accessed by shared code + * + * Bits are shifted in in MSB to LSB order. + */ +static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw) +{ + u32 ctrl; + u16 data = 0; + u8 i; + + /* In order to read a register from the PHY, we need to shift in a total + * of 18 bits from the PHY. The first two bit (turnaround) times are used + * to avoid contention on the MDIO pin when a read operation is performed. + * These two bits are ignored by us and thrown away. Bits are "shifted in" + * by raising the input to the Management Data Clock (setting the MDC bit), + * and then reading the value of the MDIO bit. + */ + ctrl = er32(CTRL); + + /* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */ + ctrl &= ~E1000_CTRL_MDIO_DIR; + ctrl &= ~E1000_CTRL_MDIO; + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + /* Raise and Lower the clock before reading in the data. This accounts for + * the turnaround bits. The first clock occurred when we clocked out the + * last bit of the Register Address. + */ + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + for (data = 0, i = 0; i < 16; i++) { + data = data << 1; + e1000_raise_mdi_clk(hw, &ctrl); + ctrl = er32(CTRL); + /* Check to see if we shifted in a "1". */ + if (ctrl & E1000_CTRL_MDIO) + data |= 1; + e1000_lower_mdi_clk(hw, &ctrl); + } + + e1000_raise_mdi_clk(hw, &ctrl); + e1000_lower_mdi_clk(hw, &ctrl); + + return data; +} + + +/** + * e1000_read_phy_reg - read a phy register + * @hw: Struct containing variables accessed by shared code + * @reg_addr: address of the PHY register to read + * + * Reads the value from a PHY register, if the value is on a specific non zero + * page, sets the page first. + */ +s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 *phy_data) +{ + u32 ret_val; + + DEBUGFUNC("e1000_read_phy_reg"); + + if ((hw->phy_type == e1000_phy_igp) && + (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { + ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, + (u16) reg_addr); + if (ret_val) + return ret_val; + } + + ret_val = e1000_read_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, + phy_data); + + return ret_val; +} + +static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 *phy_data) +{ + u32 i; + u32 mdic = 0; + const u32 phy_addr = 1; + + DEBUGFUNC("e1000_read_phy_reg_ex"); + + if (reg_addr > MAX_PHY_REG_ADDRESS) { + DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); + return -E1000_ERR_PARAM; + } + + if (hw->mac_type > e1000_82543) { + /* Set up Op-code, Phy Address, and register address in the MDI + * Control register. The MAC will take care of interfacing with the + * PHY to retrieve the desired data. + */ + mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) | + (phy_addr << E1000_MDIC_PHY_SHIFT) | + (E1000_MDIC_OP_READ)); + + ew32(MDIC, mdic); + + /* Poll the ready bit to see if the MDI read completed */ + for (i = 0; i < 64; i++) { + udelay(50); + mdic = er32(MDIC); + if (mdic & E1000_MDIC_READY) + break; + } + if (!(mdic & E1000_MDIC_READY)) { + DEBUGOUT("MDI Read did not complete\n"); + return -E1000_ERR_PHY; + } + if (mdic & E1000_MDIC_ERROR) { + DEBUGOUT("MDI Error\n"); + return -E1000_ERR_PHY; + } + *phy_data = (u16) mdic; + } else { + /* We must first send a preamble through the MDIO pin to signal the + * beginning of an MII instruction. This is done by sending 32 + * consecutive "1" bits. + */ + e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); + + /* Now combine the next few fields that are required for a read + * operation. We use this method instead of calling the + * e1000_shift_out_mdi_bits routine five different times. The format of + * a MII read instruction consists of a shift out of 14 bits and is + * defined as follows: + * + * followed by a shift in of 18 bits. This first two bits shifted in + * are TurnAround bits used to avoid contention on the MDIO pin when a + * READ operation is performed. These two bits are thrown away + * followed by a shift in of 16 bits which contains the desired data. + */ + mdic = ((reg_addr) | (phy_addr << 5) | + (PHY_OP_READ << 10) | (PHY_SOF << 12)); + + e1000_shift_out_mdi_bits(hw, mdic, 14); + + /* Now that we've shifted out the read command to the MII, we need to + * "shift in" the 16-bit value (18 total bits) of the requested PHY + * register address. + */ + *phy_data = e1000_shift_in_mdi_bits(hw); + } + return E1000_SUCCESS; +} + +/** + * e1000_write_phy_reg - write a phy register + * + * @hw: Struct containing variables accessed by shared code + * @reg_addr: address of the PHY register to write + * @data: data to write to the PHY + + * Writes a value to a PHY register + */ +s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 phy_data) +{ + u32 ret_val; + + DEBUGFUNC("e1000_write_phy_reg"); + + if ((hw->phy_type == e1000_phy_igp) && + (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { + ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, + (u16) reg_addr); + if (ret_val) + return ret_val; + } + + ret_val = e1000_write_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, + phy_data); + + return ret_val; +} + +static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, + u16 phy_data) +{ + u32 i; + u32 mdic = 0; + const u32 phy_addr = 1; + + DEBUGFUNC("e1000_write_phy_reg_ex"); + + if (reg_addr > MAX_PHY_REG_ADDRESS) { + DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); + return -E1000_ERR_PARAM; + } + + if (hw->mac_type > e1000_82543) { + /* Set up Op-code, Phy Address, register address, and data intended + * for the PHY register in the MDI Control register. The MAC will take + * care of interfacing with the PHY to send the desired data. + */ + mdic = (((u32) phy_data) | + (reg_addr << E1000_MDIC_REG_SHIFT) | + (phy_addr << E1000_MDIC_PHY_SHIFT) | + (E1000_MDIC_OP_WRITE)); + + ew32(MDIC, mdic); + + /* Poll the ready bit to see if the MDI read completed */ + for (i = 0; i < 641; i++) { + udelay(5); + mdic = er32(MDIC); + if (mdic & E1000_MDIC_READY) + break; + } + if (!(mdic & E1000_MDIC_READY)) { + DEBUGOUT("MDI Write did not complete\n"); + return -E1000_ERR_PHY; + } + } else { + /* We'll need to use the SW defined pins to shift the write command + * out to the PHY. We first send a preamble to the PHY to signal the + * beginning of the MII instruction. This is done by sending 32 + * consecutive "1" bits. + */ + e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); + + /* Now combine the remaining required fields that will indicate a + * write operation. We use this method instead of calling the + * e1000_shift_out_mdi_bits routine for each field in the command. The + * format of a MII write instruction is as follows: + * . + */ + mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) | + (PHY_OP_WRITE << 12) | (PHY_SOF << 14)); + mdic <<= 16; + mdic |= (u32) phy_data; + + e1000_shift_out_mdi_bits(hw, mdic, 32); + } + + return E1000_SUCCESS; +} + +/** + * e1000_phy_hw_reset - reset the phy, hardware style + * @hw: Struct containing variables accessed by shared code + * + * Returns the PHY to the power-on reset state + */ +s32 e1000_phy_hw_reset(struct e1000_hw *hw) +{ + u32 ctrl, ctrl_ext; + u32 led_ctrl; + s32 ret_val; + + DEBUGFUNC("e1000_phy_hw_reset"); + + DEBUGOUT("Resetting Phy...\n"); + + if (hw->mac_type > e1000_82543) { + /* Read the device control register and assert the E1000_CTRL_PHY_RST + * bit. Then, take it out of reset. + * For e1000 hardware, we delay for 10ms between the assert + * and deassert. + */ + ctrl = er32(CTRL); + ew32(CTRL, ctrl | E1000_CTRL_PHY_RST); + E1000_WRITE_FLUSH(); + + msleep(10); + + ew32(CTRL, ctrl); + E1000_WRITE_FLUSH(); + + } else { + /* Read the Extended Device Control Register, assert the PHY_RESET_DIR + * bit to put the PHY into reset. Then, take it out of reset. + */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR; + ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + msleep(10); + ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA; + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + } + udelay(150); + + if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { + /* Configure activity LED after PHY reset */ + led_ctrl = er32(LEDCTL); + led_ctrl &= IGP_ACTIVITY_LED_MASK; + led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); + ew32(LEDCTL, led_ctrl); + } + + /* Wait for FW to finish PHY configuration. */ + ret_val = e1000_get_phy_cfg_done(hw); + if (ret_val != E1000_SUCCESS) + return ret_val; + + return ret_val; +} + +/** + * e1000_phy_reset - reset the phy to commit settings + * @hw: Struct containing variables accessed by shared code + * + * Resets the PHY + * Sets bit 15 of the MII Control register + */ +s32 e1000_phy_reset(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_phy_reset"); + + switch (hw->phy_type) { + case e1000_phy_igp: + ret_val = e1000_phy_hw_reset(hw); + if (ret_val) + return ret_val; + break; + default: + ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= MII_CR_RESET; + ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); + if (ret_val) + return ret_val; + + udelay(1); + break; + } + + if (hw->phy_type == e1000_phy_igp) + e1000_phy_init_script(hw); + + return E1000_SUCCESS; +} + +/** + * e1000_detect_gig_phy - check the phy type + * @hw: Struct containing variables accessed by shared code + * + * Probes the expected PHY address for known PHY IDs + */ +static s32 e1000_detect_gig_phy(struct e1000_hw *hw) +{ + s32 phy_init_status, ret_val; + u16 phy_id_high, phy_id_low; + bool match = false; + + DEBUGFUNC("e1000_detect_gig_phy"); + + if (hw->phy_id != 0) + return E1000_SUCCESS; + + /* Read the PHY ID Registers to identify which PHY is onboard. */ + ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high); + if (ret_val) + return ret_val; + + hw->phy_id = (u32) (phy_id_high << 16); + udelay(20); + ret_val = e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low); + if (ret_val) + return ret_val; + + hw->phy_id |= (u32) (phy_id_low & PHY_REVISION_MASK); + hw->phy_revision = (u32) phy_id_low & ~PHY_REVISION_MASK; + + switch (hw->mac_type) { + case e1000_82543: + if (hw->phy_id == M88E1000_E_PHY_ID) + match = true; + break; + case e1000_82544: + if (hw->phy_id == M88E1000_I_PHY_ID) + match = true; + break; + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + if (hw->phy_id == M88E1011_I_PHY_ID) + match = true; + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (hw->phy_id == IGP01E1000_I_PHY_ID) + match = true; + break; + default: + DEBUGOUT1("Invalid MAC type %d\n", hw->mac_type); + return -E1000_ERR_CONFIG; + } + phy_init_status = e1000_set_phy_type(hw); + + if ((match) && (phy_init_status == E1000_SUCCESS)) { + DEBUGOUT1("PHY ID 0x%X detected\n", hw->phy_id); + return E1000_SUCCESS; + } + DEBUGOUT1("Invalid PHY ID 0x%X\n", hw->phy_id); + return -E1000_ERR_PHY; +} + +/** + * e1000_phy_reset_dsp - reset DSP + * @hw: Struct containing variables accessed by shared code + * + * Resets the PHY's DSP + */ +static s32 e1000_phy_reset_dsp(struct e1000_hw *hw) +{ + s32 ret_val; + DEBUGFUNC("e1000_phy_reset_dsp"); + + do { + ret_val = e1000_write_phy_reg(hw, 29, 0x001d); + if (ret_val) + break; + ret_val = e1000_write_phy_reg(hw, 30, 0x00c1); + if (ret_val) + break; + ret_val = e1000_write_phy_reg(hw, 30, 0x0000); + if (ret_val) + break; + ret_val = E1000_SUCCESS; + } while (0); + + return ret_val; +} + +/** + * e1000_phy_igp_get_info - get igp specific registers + * @hw: Struct containing variables accessed by shared code + * @phy_info: PHY information structure + * + * Get PHY information from various PHY registers for igp PHY only. + */ +static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data, min_length, max_length, average; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_igp_get_info"); + + /* The downshift status is checked only once, after link is established, + * and it stored in the hw->speed_downgraded parameter. */ + phy_info->downshift = (e1000_downshift) hw->speed_downgraded; + + /* IGP01E1000 does not need to support it. */ + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; + + /* IGP01E1000 always correct polarity reversal */ + phy_info->polarity_correction = e1000_polarity_reversal_enabled; + + /* Check polarity status */ + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = + (e1000_auto_x_mode) ((phy_data & IGP01E1000_PSSR_MDIX) >> + IGP01E1000_PSSR_MDIX_SHIFT); + + if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == + IGP01E1000_PSSR_SPEED_1000MBPS) { + /* Local/Remote Receiver Information are only valid at 1000 Mbps */ + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> + SR_1000T_LOCAL_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> + SR_1000T_REMOTE_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + + /* Get cable length */ + ret_val = e1000_get_cable_length(hw, &min_length, &max_length); + if (ret_val) + return ret_val; + + /* Translate to old method */ + average = (max_length + min_length) / 2; + + if (average <= e1000_igp_cable_length_50) + phy_info->cable_length = e1000_cable_length_50; + else if (average <= e1000_igp_cable_length_80) + phy_info->cable_length = e1000_cable_length_50_80; + else if (average <= e1000_igp_cable_length_110) + phy_info->cable_length = e1000_cable_length_80_110; + else if (average <= e1000_igp_cable_length_140) + phy_info->cable_length = e1000_cable_length_110_140; + else + phy_info->cable_length = e1000_cable_length_140; + } + + return E1000_SUCCESS; +} + +/** + * e1000_phy_m88_get_info - get m88 specific registers + * @hw: Struct containing variables accessed by shared code + * @phy_info: PHY information structure + * + * Get PHY information from various PHY registers for m88 PHY only. + */ +static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, + struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + e1000_rev_polarity polarity; + + DEBUGFUNC("e1000_phy_m88_get_info"); + + /* The downshift status is checked only once, after link is established, + * and it stored in the hw->speed_downgraded parameter. */ + phy_info->downshift = (e1000_downshift) hw->speed_downgraded; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); + if (ret_val) + return ret_val; + + phy_info->extended_10bt_distance = + ((phy_data & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >> + M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT) ? + e1000_10bt_ext_dist_enable_lower : + e1000_10bt_ext_dist_enable_normal; + + phy_info->polarity_correction = + ((phy_data & M88E1000_PSCR_POLARITY_REVERSAL) >> + M88E1000_PSCR_POLARITY_REVERSAL_SHIFT) ? + e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; + + /* Check polarity status */ + ret_val = e1000_check_polarity(hw, &polarity); + if (ret_val) + return ret_val; + phy_info->cable_polarity = polarity; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->mdix_mode = + (e1000_auto_x_mode) ((phy_data & M88E1000_PSSR_MDIX) >> + M88E1000_PSSR_MDIX_SHIFT); + + if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) { + /* Cable Length Estimation and Local/Remote Receiver Information + * are only valid at 1000 Mbps. + */ + phy_info->cable_length = + (e1000_cable_length) ((phy_data & + M88E1000_PSSR_CABLE_LENGTH) >> + M88E1000_PSSR_CABLE_LENGTH_SHIFT); + + ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); + if (ret_val) + return ret_val; + + phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> + SR_1000T_LOCAL_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> + SR_1000T_REMOTE_RX_STATUS_SHIFT) ? + e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; + + } + + return E1000_SUCCESS; +} + +/** + * e1000_phy_get_info - request phy info + * @hw: Struct containing variables accessed by shared code + * @phy_info: PHY information structure + * + * Get PHY information from various PHY registers + */ +s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_phy_get_info"); + + phy_info->cable_length = e1000_cable_length_undefined; + phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined; + phy_info->cable_polarity = e1000_rev_polarity_undefined; + phy_info->downshift = e1000_downshift_undefined; + phy_info->polarity_correction = e1000_polarity_reversal_undefined; + phy_info->mdix_mode = e1000_auto_x_mode_undefined; + phy_info->local_rx = e1000_1000t_rx_status_undefined; + phy_info->remote_rx = e1000_1000t_rx_status_undefined; + + if (hw->media_type != e1000_media_type_copper) { + DEBUGOUT("PHY info is only valid for copper media\n"); + return -E1000_ERR_CONFIG; + } + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); + if (ret_val) + return ret_val; + + if ((phy_data & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS) { + DEBUGOUT("PHY info is only valid if link is up\n"); + return -E1000_ERR_CONFIG; + } + + if (hw->phy_type == e1000_phy_igp) + return e1000_phy_igp_get_info(hw, phy_info); + else + return e1000_phy_m88_get_info(hw, phy_info); +} + +s32 e1000_validate_mdi_setting(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_validate_mdi_settings"); + + if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) { + DEBUGOUT("Invalid MDI setting detected\n"); + hw->mdix = 1; + return -E1000_ERR_CONFIG; + } + return E1000_SUCCESS; +} + +/** + * e1000_init_eeprom_params - initialize sw eeprom vars + * @hw: Struct containing variables accessed by shared code + * + * Sets up eeprom variables in the hw struct. Must be called after mac_type + * is configured. + */ +s32 e1000_init_eeprom_params(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd = er32(EECD); + s32 ret_val = E1000_SUCCESS; + u16 eeprom_size; + + DEBUGFUNC("e1000_init_eeprom_params"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + eeprom->type = e1000_eeprom_microwire; + eeprom->word_size = 64; + eeprom->opcode_bits = 3; + eeprom->address_bits = 6; + eeprom->delay_usec = 50; + break; + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + eeprom->type = e1000_eeprom_microwire; + eeprom->opcode_bits = 3; + eeprom->delay_usec = 50; + if (eecd & E1000_EECD_SIZE) { + eeprom->word_size = 256; + eeprom->address_bits = 8; + } else { + eeprom->word_size = 64; + eeprom->address_bits = 6; + } + break; + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (eecd & E1000_EECD_TYPE) { + eeprom->type = e1000_eeprom_spi; + eeprom->opcode_bits = 8; + eeprom->delay_usec = 1; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->page_size = 32; + eeprom->address_bits = 16; + } else { + eeprom->page_size = 8; + eeprom->address_bits = 8; + } + } else { + eeprom->type = e1000_eeprom_microwire; + eeprom->opcode_bits = 3; + eeprom->delay_usec = 50; + if (eecd & E1000_EECD_ADDR_BITS) { + eeprom->word_size = 256; + eeprom->address_bits = 8; + } else { + eeprom->word_size = 64; + eeprom->address_bits = 6; + } + } + break; + default: + break; + } + + if (eeprom->type == e1000_eeprom_spi) { + /* eeprom_size will be an enum [0..8] that maps to eeprom sizes 128B to + * 32KB (incremented by powers of 2). + */ + /* Set to default value for initial eeprom read. */ + eeprom->word_size = 64; + ret_val = e1000_read_eeprom(hw, EEPROM_CFG, 1, &eeprom_size); + if (ret_val) + return ret_val; + eeprom_size = + (eeprom_size & EEPROM_SIZE_MASK) >> EEPROM_SIZE_SHIFT; + /* 256B eeprom size was not supported in earlier hardware, so we + * bump eeprom_size up one to ensure that "1" (which maps to 256B) + * is never the result used in the shifting logic below. */ + if (eeprom_size) + eeprom_size++; + + eeprom->word_size = 1 << (eeprom_size + EEPROM_WORD_SIZE_SHIFT); + } + return ret_val; +} + +/** + * e1000_raise_ee_clk - Raises the EEPROM's clock input. + * @hw: Struct containing variables accessed by shared code + * @eecd: EECD's current value + */ +static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd) +{ + /* Raise the clock input to the EEPROM (by setting the SK bit), and then + * wait microseconds. + */ + *eecd = *eecd | E1000_EECD_SK; + ew32(EECD, *eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); +} + +/** + * e1000_lower_ee_clk - Lowers the EEPROM's clock input. + * @hw: Struct containing variables accessed by shared code + * @eecd: EECD's current value + */ +static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd) +{ + /* Lower the clock input to the EEPROM (by clearing the SK bit), and then + * wait 50 microseconds. + */ + *eecd = *eecd & ~E1000_EECD_SK; + ew32(EECD, *eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); +} + +/** + * e1000_shift_out_ee_bits - Shift data bits out to the EEPROM. + * @hw: Struct containing variables accessed by shared code + * @data: data to send to the EEPROM + * @count: number of bits to shift out + */ +static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, u16 count) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + u32 mask; + + /* We need to shift "count" bits out to the EEPROM. So, value in the + * "data" parameter will be shifted out to the EEPROM one bit at a time. + * In order to do this, "data" must be broken down into bits. + */ + mask = 0x01 << (count - 1); + eecd = er32(EECD); + if (eeprom->type == e1000_eeprom_microwire) { + eecd &= ~E1000_EECD_DO; + } else if (eeprom->type == e1000_eeprom_spi) { + eecd |= E1000_EECD_DO; + } + do { + /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1", + * and then raising and then lowering the clock (the SK bit controls + * the clock input to the EEPROM). A "0" is shifted out to the EEPROM + * by setting "DI" to "0" and then raising and then lowering the clock. + */ + eecd &= ~E1000_EECD_DI; + + if (data & mask) + eecd |= E1000_EECD_DI; + + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + + udelay(eeprom->delay_usec); + + e1000_raise_ee_clk(hw, &eecd); + e1000_lower_ee_clk(hw, &eecd); + + mask = mask >> 1; + + } while (mask); + + /* We leave the "DI" bit set to "0" when we leave this routine. */ + eecd &= ~E1000_EECD_DI; + ew32(EECD, eecd); +} + +/** + * e1000_shift_in_ee_bits - Shift data bits in from the EEPROM + * @hw: Struct containing variables accessed by shared code + * @count: number of bits to shift in + */ +static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count) +{ + u32 eecd; + u32 i; + u16 data; + + /* In order to read a register from the EEPROM, we need to shift 'count' + * bits in from the EEPROM. Bits are "shifted in" by raising the clock + * input to the EEPROM (setting the SK bit), and then reading the value of + * the "DO" bit. During this "shifting in" process the "DI" bit should + * always be clear. + */ + + eecd = er32(EECD); + + eecd &= ~(E1000_EECD_DO | E1000_EECD_DI); + data = 0; + + for (i = 0; i < count; i++) { + data = data << 1; + e1000_raise_ee_clk(hw, &eecd); + + eecd = er32(EECD); + + eecd &= ~(E1000_EECD_DI); + if (eecd & E1000_EECD_DO) + data |= 1; + + e1000_lower_ee_clk(hw, &eecd); + } + + return data; +} + +/** + * e1000_acquire_eeprom - Prepares EEPROM for access + * @hw: Struct containing variables accessed by shared code + * + * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This + * function should be called before issuing a command to the EEPROM. + */ +static s32 e1000_acquire_eeprom(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd, i = 0; + + DEBUGFUNC("e1000_acquire_eeprom"); + + eecd = er32(EECD); + + /* Request EEPROM Access */ + if (hw->mac_type > e1000_82544) { + eecd |= E1000_EECD_REQ; + ew32(EECD, eecd); + eecd = er32(EECD); + while ((!(eecd & E1000_EECD_GNT)) && + (i < E1000_EEPROM_GRANT_ATTEMPTS)) { + i++; + udelay(5); + eecd = er32(EECD); + } + if (!(eecd & E1000_EECD_GNT)) { + eecd &= ~E1000_EECD_REQ; + ew32(EECD, eecd); + DEBUGOUT("Could not acquire EEPROM grant\n"); + return -E1000_ERR_EEPROM; + } + } + + /* Setup EEPROM for Read/Write */ + + if (eeprom->type == e1000_eeprom_microwire) { + /* Clear SK and DI */ + eecd &= ~(E1000_EECD_DI | E1000_EECD_SK); + ew32(EECD, eecd); + + /* Set CS */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + } else if (eeprom->type == e1000_eeprom_spi) { + /* Clear SK and CS */ + eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); + ew32(EECD, eecd); + udelay(1); + } + + return E1000_SUCCESS; +} + +/** + * e1000_standby_eeprom - Returns EEPROM to a "standby" state + * @hw: Struct containing variables accessed by shared code + */ +static void e1000_standby_eeprom(struct e1000_hw *hw) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + + eecd = er32(EECD); + + if (eeprom->type == e1000_eeprom_microwire) { + eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Clock high */ + eecd |= E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Select EEPROM */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + + /* Clock low */ + eecd &= ~E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + } else if (eeprom->type == e1000_eeprom_spi) { + /* Toggle CS to flush commands */ + eecd |= E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + eecd &= ~E1000_EECD_CS; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(eeprom->delay_usec); + } +} + +/** + * e1000_release_eeprom - drop chip select + * @hw: Struct containing variables accessed by shared code + * + * Terminates a command by inverting the EEPROM's chip select pin + */ +static void e1000_release_eeprom(struct e1000_hw *hw) +{ + u32 eecd; + + DEBUGFUNC("e1000_release_eeprom"); + + eecd = er32(EECD); + + if (hw->eeprom.type == e1000_eeprom_spi) { + eecd |= E1000_EECD_CS; /* Pull CS high */ + eecd &= ~E1000_EECD_SK; /* Lower SCK */ + + ew32(EECD, eecd); + + udelay(hw->eeprom.delay_usec); + } else if (hw->eeprom.type == e1000_eeprom_microwire) { + /* cleanup eeprom */ + + /* CS on Microwire is active-high */ + eecd &= ~(E1000_EECD_CS | E1000_EECD_DI); + + ew32(EECD, eecd); + + /* Rising edge of clock */ + eecd |= E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); + + /* Falling edge of clock */ + eecd &= ~E1000_EECD_SK; + ew32(EECD, eecd); + E1000_WRITE_FLUSH(); + udelay(hw->eeprom.delay_usec); + } + + /* Stop requesting EEPROM access */ + if (hw->mac_type > e1000_82544) { + eecd &= ~E1000_EECD_REQ; + ew32(EECD, eecd); + } +} + +/** + * e1000_spi_eeprom_ready - Reads a 16 bit word from the EEPROM. + * @hw: Struct containing variables accessed by shared code + */ +static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw) +{ + u16 retry_count = 0; + u8 spi_stat_reg; + + DEBUGFUNC("e1000_spi_eeprom_ready"); + + /* Read "Status Register" repeatedly until the LSB is cleared. The + * EEPROM will signal that the command has been completed by clearing + * bit 0 of the internal status register. If it's not cleared within + * 5 milliseconds, then error out. + */ + retry_count = 0; + do { + e1000_shift_out_ee_bits(hw, EEPROM_RDSR_OPCODE_SPI, + hw->eeprom.opcode_bits); + spi_stat_reg = (u8) e1000_shift_in_ee_bits(hw, 8); + if (!(spi_stat_reg & EEPROM_STATUS_RDY_SPI)) + break; + + udelay(5); + retry_count += 5; + + e1000_standby_eeprom(hw); + } while (retry_count < EEPROM_MAX_RETRY_SPI); + + /* ATMEL SPI write time could vary from 0-20mSec on 3.3V devices (and + * only 0-5mSec on 5V devices) + */ + if (retry_count >= EEPROM_MAX_RETRY_SPI) { + DEBUGOUT("SPI EEPROM Status error\n"); + return -E1000_ERR_EEPROM; + } + + return E1000_SUCCESS; +} + +/** + * e1000_read_eeprom - Reads a 16 bit word from the EEPROM. + * @hw: Struct containing variables accessed by shared code + * @offset: offset of word in the EEPROM to read + * @data: word read from the EEPROM + * @words: number of words to read + */ +s32 e1000_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + s32 ret; + spin_lock(&e1000_eeprom_lock); + ret = e1000_do_read_eeprom(hw, offset, words, data); + spin_unlock(&e1000_eeprom_lock); + return ret; +} + +static s32 e1000_do_read_eeprom(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 i = 0; + + DEBUGFUNC("e1000_read_eeprom"); + + /* If eeprom is not yet detected, do so now */ + if (eeprom->word_size == 0) + e1000_init_eeprom_params(hw); + + /* A check for invalid values: offset too large, too many words, and not + * enough words. + */ + if ((offset >= eeprom->word_size) + || (words > eeprom->word_size - offset) || (words == 0)) { + DEBUGOUT2 + ("\"words\" parameter out of bounds. Words = %d, size = %d\n", + offset, eeprom->word_size); + return -E1000_ERR_EEPROM; + } + + /* EEPROM's that don't use EERD to read require us to bit-bang the SPI + * directly. In this case, we need to acquire the EEPROM so that + * FW or other port software does not interrupt. + */ + /* Prepare the EEPROM for bit-bang reading */ + if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + + /* Set up the SPI or Microwire EEPROM for bit-bang reading. We have + * acquired the EEPROM at this point, so any returns should release it */ + if (eeprom->type == e1000_eeprom_spi) { + u16 word_in; + u8 read_opcode = EEPROM_READ_OPCODE_SPI; + + if (e1000_spi_eeprom_ready(hw)) { + e1000_release_eeprom(hw); + return -E1000_ERR_EEPROM; + } + + e1000_standby_eeprom(hw); + + /* Some SPI eeproms use the 8th address bit embedded in the opcode */ + if ((eeprom->address_bits == 8) && (offset >= 128)) + read_opcode |= EEPROM_A8_OPCODE_SPI; + + /* Send the READ command (opcode + addr) */ + e1000_shift_out_ee_bits(hw, read_opcode, eeprom->opcode_bits); + e1000_shift_out_ee_bits(hw, (u16) (offset * 2), + eeprom->address_bits); + + /* Read the data. The address of the eeprom internally increments with + * each byte (spi) being read, saving on the overhead of eeprom setup + * and tear-down. The address counter will roll over if reading beyond + * the size of the eeprom, thus allowing the entire memory to be read + * starting from any offset. */ + for (i = 0; i < words; i++) { + word_in = e1000_shift_in_ee_bits(hw, 16); + data[i] = (word_in >> 8) | (word_in << 8); + } + } else if (eeprom->type == e1000_eeprom_microwire) { + for (i = 0; i < words; i++) { + /* Send the READ command (opcode + addr) */ + e1000_shift_out_ee_bits(hw, + EEPROM_READ_OPCODE_MICROWIRE, + eeprom->opcode_bits); + e1000_shift_out_ee_bits(hw, (u16) (offset + i), + eeprom->address_bits); + + /* Read the data. For microwire, each word requires the overhead + * of eeprom setup and tear-down. */ + data[i] = e1000_shift_in_ee_bits(hw, 16); + e1000_standby_eeprom(hw); + } + } + + /* End this read operation */ + e1000_release_eeprom(hw); + + return E1000_SUCCESS; +} + +/** + * e1000_validate_eeprom_checksum - Verifies that the EEPROM has a valid checksum + * @hw: Struct containing variables accessed by shared code + * + * Reads the first 64 16 bit words of the EEPROM and sums the values read. + * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is + * valid. + */ +s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw) +{ + u16 checksum = 0; + u16 i, eeprom_data; + + DEBUGFUNC("e1000_validate_eeprom_checksum"); + + for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { + if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + checksum += eeprom_data; + } + + if (checksum == (u16) EEPROM_SUM) + return E1000_SUCCESS; + else { + DEBUGOUT("EEPROM Checksum Invalid\n"); + return -E1000_ERR_EEPROM; + } +} + +/** + * e1000_update_eeprom_checksum - Calculates/writes the EEPROM checksum + * @hw: Struct containing variables accessed by shared code + * + * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA. + * Writes the difference to word offset 63 of the EEPROM. + */ +s32 e1000_update_eeprom_checksum(struct e1000_hw *hw) +{ + u16 checksum = 0; + u16 i, eeprom_data; + + DEBUGFUNC("e1000_update_eeprom_checksum"); + + for (i = 0; i < EEPROM_CHECKSUM_REG; i++) { + if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + checksum += eeprom_data; + } + checksum = (u16) EEPROM_SUM - checksum; + if (e1000_write_eeprom(hw, EEPROM_CHECKSUM_REG, 1, &checksum) < 0) { + DEBUGOUT("EEPROM Write Error\n"); + return -E1000_ERR_EEPROM; + } + return E1000_SUCCESS; +} + +/** + * e1000_write_eeprom - write words to the different EEPROM types. + * @hw: Struct containing variables accessed by shared code + * @offset: offset within the EEPROM to be written to + * @words: number of words to write + * @data: 16 bit word to be written to the EEPROM + * + * If e1000_update_eeprom_checksum is not called after this function, the + * EEPROM will most likely contain an invalid checksum. + */ +s32 e1000_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) +{ + s32 ret; + spin_lock(&e1000_eeprom_lock); + ret = e1000_do_write_eeprom(hw, offset, words, data); + spin_unlock(&e1000_eeprom_lock); + return ret; +} + +static s32 e1000_do_write_eeprom(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + s32 status = 0; + + DEBUGFUNC("e1000_write_eeprom"); + + /* If eeprom is not yet detected, do so now */ + if (eeprom->word_size == 0) + e1000_init_eeprom_params(hw); + + /* A check for invalid values: offset too large, too many words, and not + * enough words. + */ + if ((offset >= eeprom->word_size) + || (words > eeprom->word_size - offset) || (words == 0)) { + DEBUGOUT("\"words\" parameter out of bounds\n"); + return -E1000_ERR_EEPROM; + } + + /* Prepare the EEPROM for writing */ + if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) + return -E1000_ERR_EEPROM; + + if (eeprom->type == e1000_eeprom_microwire) { + status = e1000_write_eeprom_microwire(hw, offset, words, data); + } else { + status = e1000_write_eeprom_spi(hw, offset, words, data); + msleep(10); + } + + /* Done with writing */ + e1000_release_eeprom(hw); + + return status; +} + +/** + * e1000_write_eeprom_spi - Writes a 16 bit word to a given offset in an SPI EEPROM. + * @hw: Struct containing variables accessed by shared code + * @offset: offset within the EEPROM to be written to + * @words: number of words to write + * @data: pointer to array of 8 bit words to be written to the EEPROM + */ +static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, u16 words, + u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u16 widx = 0; + + DEBUGFUNC("e1000_write_eeprom_spi"); + + while (widx < words) { + u8 write_opcode = EEPROM_WRITE_OPCODE_SPI; + + if (e1000_spi_eeprom_ready(hw)) + return -E1000_ERR_EEPROM; + + e1000_standby_eeprom(hw); + + /* Send the WRITE ENABLE command (8 bit opcode ) */ + e1000_shift_out_ee_bits(hw, EEPROM_WREN_OPCODE_SPI, + eeprom->opcode_bits); + + e1000_standby_eeprom(hw); + + /* Some SPI eeproms use the 8th address bit embedded in the opcode */ + if ((eeprom->address_bits == 8) && (offset >= 128)) + write_opcode |= EEPROM_A8_OPCODE_SPI; + + /* Send the Write command (8-bit opcode + addr) */ + e1000_shift_out_ee_bits(hw, write_opcode, eeprom->opcode_bits); + + e1000_shift_out_ee_bits(hw, (u16) ((offset + widx) * 2), + eeprom->address_bits); + + /* Send the data */ + + /* Loop to allow for up to whole page write (32 bytes) of eeprom */ + while (widx < words) { + u16 word_out = data[widx]; + word_out = (word_out >> 8) | (word_out << 8); + e1000_shift_out_ee_bits(hw, word_out, 16); + widx++; + + /* Some larger eeprom sizes are capable of a 32-byte PAGE WRITE + * operation, while the smaller eeproms are capable of an 8-byte + * PAGE WRITE operation. Break the inner loop to pass new address + */ + if ((((offset + widx) * 2) % eeprom->page_size) == 0) { + e1000_standby_eeprom(hw); + break; + } + } + } + + return E1000_SUCCESS; +} + +/** + * e1000_write_eeprom_microwire - Writes a 16 bit word to a given offset in a Microwire EEPROM. + * @hw: Struct containing variables accessed by shared code + * @offset: offset within the EEPROM to be written to + * @words: number of words to write + * @data: pointer to array of 8 bit words to be written to the EEPROM + */ +static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, u16 offset, + u16 words, u16 *data) +{ + struct e1000_eeprom_info *eeprom = &hw->eeprom; + u32 eecd; + u16 words_written = 0; + u16 i = 0; + + DEBUGFUNC("e1000_write_eeprom_microwire"); + + /* Send the write enable command to the EEPROM (3-bit opcode plus + * 6/8-bit dummy address beginning with 11). It's less work to include + * the 11 of the dummy address as part of the opcode than it is to shift + * it over the correct number of bits for the address. This puts the + * EEPROM into write/erase mode. + */ + e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE_MICROWIRE, + (u16) (eeprom->opcode_bits + 2)); + + e1000_shift_out_ee_bits(hw, 0, (u16) (eeprom->address_bits - 2)); + + /* Prepare the EEPROM */ + e1000_standby_eeprom(hw); + + while (words_written < words) { + /* Send the Write command (3-bit opcode + addr) */ + e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE_MICROWIRE, + eeprom->opcode_bits); + + e1000_shift_out_ee_bits(hw, (u16) (offset + words_written), + eeprom->address_bits); + + /* Send the data */ + e1000_shift_out_ee_bits(hw, data[words_written], 16); + + /* Toggle the CS line. This in effect tells the EEPROM to execute + * the previous command. + */ + e1000_standby_eeprom(hw); + + /* Read DO repeatedly until it is high (equal to '1'). The EEPROM will + * signal that the command has been completed by raising the DO signal. + * If DO does not go high in 10 milliseconds, then error out. + */ + for (i = 0; i < 200; i++) { + eecd = er32(EECD); + if (eecd & E1000_EECD_DO) + break; + udelay(50); + } + if (i == 200) { + DEBUGOUT("EEPROM Write did not complete\n"); + return -E1000_ERR_EEPROM; + } + + /* Recover from write */ + e1000_standby_eeprom(hw); + + words_written++; + } + + /* Send the write disable command to the EEPROM (3-bit opcode plus + * 6/8-bit dummy address beginning with 10). It's less work to include + * the 10 of the dummy address as part of the opcode than it is to shift + * it over the correct number of bits for the address. This takes the + * EEPROM out of write/erase mode. + */ + e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE_MICROWIRE, + (u16) (eeprom->opcode_bits + 2)); + + e1000_shift_out_ee_bits(hw, 0, (u16) (eeprom->address_bits - 2)); + + return E1000_SUCCESS; +} + +/** + * e1000_read_mac_addr - read the adapters MAC from eeprom + * @hw: Struct containing variables accessed by shared code + * + * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the + * second function of dual function devices + */ +s32 e1000_read_mac_addr(struct e1000_hw *hw) +{ + u16 offset; + u16 eeprom_data, i; + + DEBUGFUNC("e1000_read_mac_addr"); + + for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) { + offset = i >> 1; + if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + hw->perm_mac_addr[i] = (u8) (eeprom_data & 0x00FF); + hw->perm_mac_addr[i + 1] = (u8) (eeprom_data >> 8); + } + + switch (hw->mac_type) { + default: + break; + case e1000_82546: + case e1000_82546_rev_3: + if (er32(STATUS) & E1000_STATUS_FUNC_1) + hw->perm_mac_addr[5] ^= 0x01; + break; + } + + for (i = 0; i < NODE_ADDRESS_SIZE; i++) + hw->mac_addr[i] = hw->perm_mac_addr[i]; + return E1000_SUCCESS; +} + +/** + * e1000_init_rx_addrs - Initializes receive address filters. + * @hw: Struct containing variables accessed by shared code + * + * Places the MAC address in receive address register 0 and clears the rest + * of the receive address registers. Clears the multicast table. Assumes + * the receiver is in reset when the routine is called. + */ +static void e1000_init_rx_addrs(struct e1000_hw *hw) +{ + u32 i; + u32 rar_num; + + DEBUGFUNC("e1000_init_rx_addrs"); + + /* Setup the receive address. */ + DEBUGOUT("Programming MAC Address into RAR[0]\n"); + + e1000_rar_set(hw, hw->mac_addr, 0); + + rar_num = E1000_RAR_ENTRIES; + + /* Zero out the other 15 receive addresses. */ + DEBUGOUT("Clearing RAR[1-15]\n"); + for (i = 1; i < rar_num; i++) { + E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0); + E1000_WRITE_FLUSH(); + } +} + +/** + * e1000_hash_mc_addr - Hashes an address to determine its location in the multicast table + * @hw: Struct containing variables accessed by shared code + * @mc_addr: the multicast address to hash + */ +u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr) +{ + u32 hash_value = 0; + + /* The portion of the address that is used for the hash table is + * determined by the mc_filter_type setting. + */ + switch (hw->mc_filter_type) { + /* [0] [1] [2] [3] [4] [5] + * 01 AA 00 12 34 56 + * LSB MSB + */ + case 0: + /* [47:36] i.e. 0x563 for above example address */ + hash_value = ((mc_addr[4] >> 4) | (((u16) mc_addr[5]) << 4)); + break; + case 1: + /* [46:35] i.e. 0xAC6 for above example address */ + hash_value = ((mc_addr[4] >> 3) | (((u16) mc_addr[5]) << 5)); + break; + case 2: + /* [45:34] i.e. 0x5D8 for above example address */ + hash_value = ((mc_addr[4] >> 2) | (((u16) mc_addr[5]) << 6)); + break; + case 3: + /* [43:32] i.e. 0x634 for above example address */ + hash_value = ((mc_addr[4]) | (((u16) mc_addr[5]) << 8)); + break; + } + + hash_value &= 0xFFF; + return hash_value; +} + +/** + * e1000_rar_set - Puts an ethernet address into a receive address register. + * @hw: Struct containing variables accessed by shared code + * @addr: Address to put into receive address register + * @index: Receive address register to write + */ +void e1000_rar_set(struct e1000_hw *hw, u8 *addr, u32 index) +{ + u32 rar_low, rar_high; + + /* HW expects these in little endian so we reverse the byte order + * from network order (big endian) to little endian + */ + rar_low = ((u32) addr[0] | ((u32) addr[1] << 8) | + ((u32) addr[2] << 16) | ((u32) addr[3] << 24)); + rar_high = ((u32) addr[4] | ((u32) addr[5] << 8)); + + /* Disable Rx and flush all Rx frames before enabling RSS to avoid Rx + * unit hang. + * + * Description: + * If there are any Rx frames queued up or otherwise present in the HW + * before RSS is enabled, and then we enable RSS, the HW Rx unit will + * hang. To work around this issue, we have to disable receives and + * flush out all Rx frames before we enable RSS. To do so, we modify we + * redirect all Rx traffic to manageability and then reset the HW. + * This flushes away Rx frames, and (since the redirections to + * manageability persists across resets) keeps new ones from coming in + * while we work. Then, we clear the Address Valid AV bit for all MAC + * addresses and undo the re-direction to manageability. + * Now, frames are coming in again, but the MAC won't accept them, so + * far so good. We now proceed to initialize RSS (if necessary) and + * configure the Rx unit. Last, we re-enable the AV bits and continue + * on our merry way. + */ + switch (hw->mac_type) { + default: + /* Indicate to hardware the Address is Valid. */ + rar_high |= E1000_RAH_AV; + break; + } + + E1000_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high); + E1000_WRITE_FLUSH(); +} + +/** + * e1000_write_vfta - Writes a value to the specified offset in the VLAN filter table. + * @hw: Struct containing variables accessed by shared code + * @offset: Offset in VLAN filer table to write + * @value: Value to write into VLAN filter table + */ +void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value) +{ + u32 temp; + + if ((hw->mac_type == e1000_82544) && ((offset & 0x1) == 1)) { + temp = E1000_READ_REG_ARRAY(hw, VFTA, (offset - 1)); + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, VFTA, (offset - 1), temp); + E1000_WRITE_FLUSH(); + } else { + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); + E1000_WRITE_FLUSH(); + } +} + +/** + * e1000_clear_vfta - Clears the VLAN filer table + * @hw: Struct containing variables accessed by shared code + */ +static void e1000_clear_vfta(struct e1000_hw *hw) +{ + u32 offset; + u32 vfta_value = 0; + u32 vfta_offset = 0; + u32 vfta_bit_in_reg = 0; + + for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { + /* If the offset we want to clear is the same offset of the + * manageability VLAN ID, then clear all bits except that of the + * manageability unit */ + vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0; + E1000_WRITE_REG_ARRAY(hw, VFTA, offset, vfta_value); + E1000_WRITE_FLUSH(); + } +} + +static s32 e1000_id_led_init(struct e1000_hw *hw) +{ + u32 ledctl; + const u32 ledctl_mask = 0x000000FF; + const u32 ledctl_on = E1000_LEDCTL_MODE_LED_ON; + const u32 ledctl_off = E1000_LEDCTL_MODE_LED_OFF; + u16 eeprom_data, i, temp; + const u16 led_mask = 0x0F; + + DEBUGFUNC("e1000_id_led_init"); + + if (hw->mac_type < e1000_82540) { + /* Nothing to do */ + return E1000_SUCCESS; + } + + ledctl = er32(LEDCTL); + hw->ledctl_default = ledctl; + hw->ledctl_mode1 = hw->ledctl_default; + hw->ledctl_mode2 = hw->ledctl_default; + + if (e1000_read_eeprom(hw, EEPROM_ID_LED_SETTINGS, 1, &eeprom_data) < 0) { + DEBUGOUT("EEPROM Read Error\n"); + return -E1000_ERR_EEPROM; + } + + if ((eeprom_data == ID_LED_RESERVED_0000) || + (eeprom_data == ID_LED_RESERVED_FFFF)) { + eeprom_data = ID_LED_DEFAULT; + } + + for (i = 0; i < 4; i++) { + temp = (eeprom_data >> (i << 2)) & led_mask; + switch (temp) { + case ID_LED_ON1_DEF2: + case ID_LED_ON1_ON2: + case ID_LED_ON1_OFF2: + hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode1 |= ledctl_on << (i << 3); + break; + case ID_LED_OFF1_DEF2: + case ID_LED_OFF1_ON2: + case ID_LED_OFF1_OFF2: + hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode1 |= ledctl_off << (i << 3); + break; + default: + /* Do nothing */ + break; + } + switch (temp) { + case ID_LED_DEF1_ON2: + case ID_LED_ON1_ON2: + case ID_LED_OFF1_ON2: + hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode2 |= ledctl_on << (i << 3); + break; + case ID_LED_DEF1_OFF2: + case ID_LED_ON1_OFF2: + case ID_LED_OFF1_OFF2: + hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); + hw->ledctl_mode2 |= ledctl_off << (i << 3); + break; + default: + /* Do nothing */ + break; + } + } + return E1000_SUCCESS; +} + +/** + * e1000_setup_led + * @hw: Struct containing variables accessed by shared code + * + * Prepares SW controlable LED for use and saves the current state of the LED. + */ +s32 e1000_setup_led(struct e1000_hw *hw) +{ + u32 ledctl; + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_setup_led"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* No setup necessary */ + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + /* Turn off PHY Smart Power Down (if enabled) */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, + &hw->phy_spd_default); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + (u16) (hw->phy_spd_default & + ~IGP01E1000_GMII_SPD)); + if (ret_val) + return ret_val; + /* Fall Through */ + default: + if (hw->media_type == e1000_media_type_fiber) { + ledctl = er32(LEDCTL); + /* Save current LEDCTL settings */ + hw->ledctl_default = ledctl; + /* Turn off LED0 */ + ledctl &= ~(E1000_LEDCTL_LED0_IVRT | + E1000_LEDCTL_LED0_BLINK | + E1000_LEDCTL_LED0_MODE_MASK); + ledctl |= (E1000_LEDCTL_MODE_LED_OFF << + E1000_LEDCTL_LED0_MODE_SHIFT); + ew32(LEDCTL, ledctl); + } else if (hw->media_type == e1000_media_type_copper) + ew32(LEDCTL, hw->ledctl_mode1); + break; + } + + return E1000_SUCCESS; +} + +/** + * e1000_cleanup_led - Restores the saved state of the SW controlable LED. + * @hw: Struct containing variables accessed by shared code + */ +s32 e1000_cleanup_led(struct e1000_hw *hw) +{ + s32 ret_val = E1000_SUCCESS; + + DEBUGFUNC("e1000_cleanup_led"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + /* No cleanup necessary */ + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + /* Turn on PHY Smart Power Down (if previously enabled) */ + ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + hw->phy_spd_default); + if (ret_val) + return ret_val; + /* Fall Through */ + default: + /* Restore LEDCTL settings */ + ew32(LEDCTL, hw->ledctl_default); + break; + } + + return E1000_SUCCESS; +} + +/** + * e1000_led_on - Turns on the software controllable LED + * @hw: Struct containing variables accessed by shared code + */ +s32 e1000_led_on(struct e1000_hw *hw) +{ + u32 ctrl = er32(CTRL); + + DEBUGFUNC("e1000_led_on"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + /* Set SW Defineable Pin 0 to turn on the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + break; + case e1000_82544: + if (hw->media_type == e1000_media_type_fiber) { + /* Set SW Defineable Pin 0 to turn on the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else { + /* Clear SW Defineable Pin 0 to turn on the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } + break; + default: + if (hw->media_type == e1000_media_type_fiber) { + /* Clear SW Defineable Pin 0 to turn on the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else if (hw->media_type == e1000_media_type_copper) { + ew32(LEDCTL, hw->ledctl_mode2); + return E1000_SUCCESS; + } + break; + } + + ew32(CTRL, ctrl); + + return E1000_SUCCESS; +} + +/** + * e1000_led_off - Turns off the software controllable LED + * @hw: Struct containing variables accessed by shared code + */ +s32 e1000_led_off(struct e1000_hw *hw) +{ + u32 ctrl = er32(CTRL); + + DEBUGFUNC("e1000_led_off"); + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + /* Clear SW Defineable Pin 0 to turn off the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + break; + case e1000_82544: + if (hw->media_type == e1000_media_type_fiber) { + /* Clear SW Defineable Pin 0 to turn off the LED */ + ctrl &= ~E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else { + /* Set SW Defineable Pin 0 to turn off the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } + break; + default: + if (hw->media_type == e1000_media_type_fiber) { + /* Set SW Defineable Pin 0 to turn off the LED */ + ctrl |= E1000_CTRL_SWDPIN0; + ctrl |= E1000_CTRL_SWDPIO0; + } else if (hw->media_type == e1000_media_type_copper) { + ew32(LEDCTL, hw->ledctl_mode1); + return E1000_SUCCESS; + } + break; + } + + ew32(CTRL, ctrl); + + return E1000_SUCCESS; +} + +/** + * e1000_clear_hw_cntrs - Clears all hardware statistics counters. + * @hw: Struct containing variables accessed by shared code + */ +static void e1000_clear_hw_cntrs(struct e1000_hw *hw) +{ + volatile u32 temp; + + temp = er32(CRCERRS); + temp = er32(SYMERRS); + temp = er32(MPC); + temp = er32(SCC); + temp = er32(ECOL); + temp = er32(MCC); + temp = er32(LATECOL); + temp = er32(COLC); + temp = er32(DC); + temp = er32(SEC); + temp = er32(RLEC); + temp = er32(XONRXC); + temp = er32(XONTXC); + temp = er32(XOFFRXC); + temp = er32(XOFFTXC); + temp = er32(FCRUC); + + temp = er32(PRC64); + temp = er32(PRC127); + temp = er32(PRC255); + temp = er32(PRC511); + temp = er32(PRC1023); + temp = er32(PRC1522); + + temp = er32(GPRC); + temp = er32(BPRC); + temp = er32(MPRC); + temp = er32(GPTC); + temp = er32(GORCL); + temp = er32(GORCH); + temp = er32(GOTCL); + temp = er32(GOTCH); + temp = er32(RNBC); + temp = er32(RUC); + temp = er32(RFC); + temp = er32(ROC); + temp = er32(RJC); + temp = er32(TORL); + temp = er32(TORH); + temp = er32(TOTL); + temp = er32(TOTH); + temp = er32(TPR); + temp = er32(TPT); + + temp = er32(PTC64); + temp = er32(PTC127); + temp = er32(PTC255); + temp = er32(PTC511); + temp = er32(PTC1023); + temp = er32(PTC1522); + + temp = er32(MPTC); + temp = er32(BPTC); + + if (hw->mac_type < e1000_82543) + return; + + temp = er32(ALGNERRC); + temp = er32(RXERRC); + temp = er32(TNCRS); + temp = er32(CEXTERR); + temp = er32(TSCTC); + temp = er32(TSCTFC); + + if (hw->mac_type <= e1000_82544) + return; + + temp = er32(MGTPRC); + temp = er32(MGTPDC); + temp = er32(MGTPTC); +} + +/** + * e1000_reset_adaptive - Resets Adaptive IFS to its default state. + * @hw: Struct containing variables accessed by shared code + * + * Call this after e1000_init_hw. You may override the IFS defaults by setting + * hw->ifs_params_forced to true. However, you must initialize hw-> + * current_ifs_val, ifs_min_val, ifs_max_val, ifs_step_size, and ifs_ratio + * before calling this function. + */ +void e1000_reset_adaptive(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_reset_adaptive"); + + if (hw->adaptive_ifs) { + if (!hw->ifs_params_forced) { + hw->current_ifs_val = 0; + hw->ifs_min_val = IFS_MIN; + hw->ifs_max_val = IFS_MAX; + hw->ifs_step_size = IFS_STEP; + hw->ifs_ratio = IFS_RATIO; + } + hw->in_ifs_mode = false; + ew32(AIT, 0); + } else { + DEBUGOUT("Not in Adaptive IFS mode!\n"); + } +} + +/** + * e1000_update_adaptive - update adaptive IFS + * @hw: Struct containing variables accessed by shared code + * @tx_packets: Number of transmits since last callback + * @total_collisions: Number of collisions since last callback + * + * Called during the callback/watchdog routine to update IFS value based on + * the ratio of transmits to collisions. + */ +void e1000_update_adaptive(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_update_adaptive"); + + if (hw->adaptive_ifs) { + if ((hw->collision_delta *hw->ifs_ratio) > hw->tx_packet_delta) { + if (hw->tx_packet_delta > MIN_NUM_XMITS) { + hw->in_ifs_mode = true; + if (hw->current_ifs_val < hw->ifs_max_val) { + if (hw->current_ifs_val == 0) + hw->current_ifs_val = + hw->ifs_min_val; + else + hw->current_ifs_val += + hw->ifs_step_size; + ew32(AIT, hw->current_ifs_val); + } + } + } else { + if (hw->in_ifs_mode + && (hw->tx_packet_delta <= MIN_NUM_XMITS)) { + hw->current_ifs_val = 0; + hw->in_ifs_mode = false; + ew32(AIT, 0); + } + } + } else { + DEBUGOUT("Not in Adaptive IFS mode!\n"); + } +} + +/** + * e1000_tbi_adjust_stats + * @hw: Struct containing variables accessed by shared code + * @frame_len: The length of the frame in question + * @mac_addr: The Ethernet destination address of the frame in question + * + * Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT + */ +void e1000_tbi_adjust_stats(struct e1000_hw *hw, struct e1000_hw_stats *stats, + u32 frame_len, u8 *mac_addr) +{ + u64 carry_bit; + + /* First adjust the frame length. */ + frame_len--; + /* We need to adjust the statistics counters, since the hardware + * counters overcount this packet as a CRC error and undercount + * the packet as a good packet + */ + /* This packet should not be counted as a CRC error. */ + stats->crcerrs--; + /* This packet does count as a Good Packet Received. */ + stats->gprc++; + + /* Adjust the Good Octets received counters */ + carry_bit = 0x80000000 & stats->gorcl; + stats->gorcl += frame_len; + /* If the high bit of Gorcl (the low 32 bits of the Good Octets + * Received Count) was one before the addition, + * AND it is zero after, then we lost the carry out, + * need to add one to Gorch (Good Octets Received Count High). + * This could be simplified if all environments supported + * 64-bit integers. + */ + if (carry_bit && ((stats->gorcl & 0x80000000) == 0)) + stats->gorch++; + /* Is this a broadcast or multicast? Check broadcast first, + * since the test for a multicast frame will test positive on + * a broadcast frame. + */ + if ((mac_addr[0] == (u8) 0xff) && (mac_addr[1] == (u8) 0xff)) + /* Broadcast packet */ + stats->bprc++; + else if (*mac_addr & 0x01) + /* Multicast packet */ + stats->mprc++; + + if (frame_len == hw->max_frame_size) { + /* In this case, the hardware has overcounted the number of + * oversize frames. + */ + if (stats->roc > 0) + stats->roc--; + } + + /* Adjust the bin counters when the extra byte put the frame in the + * wrong bin. Remember that the frame_len was adjusted above. + */ + if (frame_len == 64) { + stats->prc64++; + stats->prc127--; + } else if (frame_len == 127) { + stats->prc127++; + stats->prc255--; + } else if (frame_len == 255) { + stats->prc255++; + stats->prc511--; + } else if (frame_len == 511) { + stats->prc511++; + stats->prc1023--; + } else if (frame_len == 1023) { + stats->prc1023++; + stats->prc1522--; + } else if (frame_len == 1522) { + stats->prc1522++; + } +} + +/** + * e1000_get_bus_info + * @hw: Struct containing variables accessed by shared code + * + * Gets the current PCI bus type, speed, and width of the hardware + */ +void e1000_get_bus_info(struct e1000_hw *hw) +{ + u32 status; + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + hw->bus_type = e1000_bus_type_pci; + hw->bus_speed = e1000_bus_speed_unknown; + hw->bus_width = e1000_bus_width_unknown; + break; + default: + status = er32(STATUS); + hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ? + e1000_bus_type_pcix : e1000_bus_type_pci; + + if (hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) { + hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ? + e1000_bus_speed_66 : e1000_bus_speed_120; + } else if (hw->bus_type == e1000_bus_type_pci) { + hw->bus_speed = (status & E1000_STATUS_PCI66) ? + e1000_bus_speed_66 : e1000_bus_speed_33; + } else { + switch (status & E1000_STATUS_PCIX_SPEED) { + case E1000_STATUS_PCIX_SPEED_66: + hw->bus_speed = e1000_bus_speed_66; + break; + case E1000_STATUS_PCIX_SPEED_100: + hw->bus_speed = e1000_bus_speed_100; + break; + case E1000_STATUS_PCIX_SPEED_133: + hw->bus_speed = e1000_bus_speed_133; + break; + default: + hw->bus_speed = e1000_bus_speed_reserved; + break; + } + } + hw->bus_width = (status & E1000_STATUS_BUS64) ? + e1000_bus_width_64 : e1000_bus_width_32; + break; + } +} + +/** + * e1000_write_reg_io + * @hw: Struct containing variables accessed by shared code + * @offset: offset to write to + * @value: value to write + * + * Writes a value to one of the devices registers using port I/O (as opposed to + * memory mapped I/O). Only 82544 and newer devices support port I/O. + */ +static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value) +{ + unsigned long io_addr = hw->io_base; + unsigned long io_data = hw->io_base + 4; + + e1000_io_write(hw, io_addr, offset); + e1000_io_write(hw, io_data, value); +} + +/** + * e1000_get_cable_length - Estimates the cable length. + * @hw: Struct containing variables accessed by shared code + * @min_length: The estimated minimum length + * @max_length: The estimated maximum length + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * This function always returns a ranged length (minimum & maximum). + * So for M88 phy's, this function interprets the one value returned from the + * register to the minimum and maximum range. + * For IGP phy's, the function calculates the range by the AGC registers. + */ +static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, + u16 *max_length) +{ + s32 ret_val; + u16 agc_value = 0; + u16 i, phy_data; + u16 cable_length; + + DEBUGFUNC("e1000_get_cable_length"); + + *min_length = *max_length = 0; + + /* Use old method for Phy older than IGP */ + if (hw->phy_type == e1000_phy_m88) { + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + cable_length = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >> + M88E1000_PSSR_CABLE_LENGTH_SHIFT; + + /* Convert the enum value to ranged values */ + switch (cable_length) { + case e1000_cable_length_50: + *min_length = 0; + *max_length = e1000_igp_cable_length_50; + break; + case e1000_cable_length_50_80: + *min_length = e1000_igp_cable_length_50; + *max_length = e1000_igp_cable_length_80; + break; + case e1000_cable_length_80_110: + *min_length = e1000_igp_cable_length_80; + *max_length = e1000_igp_cable_length_110; + break; + case e1000_cable_length_110_140: + *min_length = e1000_igp_cable_length_110; + *max_length = e1000_igp_cable_length_140; + break; + case e1000_cable_length_140: + *min_length = e1000_igp_cable_length_140; + *max_length = e1000_igp_cable_length_170; + break; + default: + return -E1000_ERR_PHY; + break; + } + } else if (hw->phy_type == e1000_phy_igp) { /* For IGP PHY */ + u16 cur_agc_value; + u16 min_agc_value = IGP01E1000_AGC_LENGTH_TABLE_SIZE; + u16 agc_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = + { IGP01E1000_PHY_AGC_A, + IGP01E1000_PHY_AGC_B, + IGP01E1000_PHY_AGC_C, + IGP01E1000_PHY_AGC_D + }; + /* Read the AGC registers for all channels */ + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + + ret_val = + e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); + if (ret_val) + return ret_val; + + cur_agc_value = phy_data >> IGP01E1000_AGC_LENGTH_SHIFT; + + /* Value bound check. */ + if ((cur_agc_value >= + IGP01E1000_AGC_LENGTH_TABLE_SIZE - 1) + || (cur_agc_value == 0)) + return -E1000_ERR_PHY; + + agc_value += cur_agc_value; + + /* Update minimal AGC value. */ + if (min_agc_value > cur_agc_value) + min_agc_value = cur_agc_value; + } + + /* Remove the minimal AGC result for length < 50m */ + if (agc_value < + IGP01E1000_PHY_CHANNEL_NUM * e1000_igp_cable_length_50) { + agc_value -= min_agc_value; + + /* Get the average length of the remaining 3 channels */ + agc_value /= (IGP01E1000_PHY_CHANNEL_NUM - 1); + } else { + /* Get the average length of all the 4 channels. */ + agc_value /= IGP01E1000_PHY_CHANNEL_NUM; + } + + /* Set the range of the calculated length. */ + *min_length = ((e1000_igp_cable_length_table[agc_value] - + IGP01E1000_AGC_RANGE) > 0) ? + (e1000_igp_cable_length_table[agc_value] - + IGP01E1000_AGC_RANGE) : 0; + *max_length = e1000_igp_cable_length_table[agc_value] + + IGP01E1000_AGC_RANGE; + } + + return E1000_SUCCESS; +} + +/** + * e1000_check_polarity - Check the cable polarity + * @hw: Struct containing variables accessed by shared code + * @polarity: output parameter : 0 - Polarity is not reversed + * 1 - Polarity is reversed. + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * For phy's older than IGP, this function simply reads the polarity bit in the + * Phy Status register. For IGP phy's, this bit is valid only if link speed is + * 10 Mbps. If the link speed is 100 Mbps there is no polarity so this bit will + * return 0. If the link speed is 1000 Mbps the polarity status is in the + * IGP01E1000_PHY_PCS_INIT_REG. + */ +static s32 e1000_check_polarity(struct e1000_hw *hw, + e1000_rev_polarity *polarity) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_polarity"); + + if (hw->phy_type == e1000_phy_m88) { + /* return the Polarity bit in the Status register. */ + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + *polarity = ((phy_data & M88E1000_PSSR_REV_POLARITY) >> + M88E1000_PSSR_REV_POLARITY_SHIFT) ? + e1000_rev_polarity_reversed : e1000_rev_polarity_normal; + + } else if (hw->phy_type == e1000_phy_igp) { + /* Read the Status register to check the speed */ + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + /* If speed is 1000 Mbps, must read the IGP01E1000_PHY_PCS_INIT_REG to + * find the polarity status */ + if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == + IGP01E1000_PSSR_SPEED_1000MBPS) { + + /* Read the GIG initialization PCS register (0x00B4) */ + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG, + &phy_data); + if (ret_val) + return ret_val; + + /* Check the polarity bits */ + *polarity = (phy_data & IGP01E1000_PHY_POLARITY_MASK) ? + e1000_rev_polarity_reversed : + e1000_rev_polarity_normal; + } else { + /* For 10 Mbps, read the polarity bit in the status register. (for + * 100 Mbps this bit is always 0) */ + *polarity = + (phy_data & IGP01E1000_PSSR_POLARITY_REVERSED) ? + e1000_rev_polarity_reversed : + e1000_rev_polarity_normal; + } + } + return E1000_SUCCESS; +} + +/** + * e1000_check_downshift - Check if Downshift occurred + * @hw: Struct containing variables accessed by shared code + * @downshift: output parameter : 0 - No Downshift occurred. + * 1 - Downshift occurred. + * + * returns: - E1000_ERR_XXX + * E1000_SUCCESS + * + * For phy's older than IGP, this function reads the Downshift bit in the Phy + * Specific Status register. For IGP phy's, it reads the Downgrade bit in the + * Link Health register. In IGP this bit is latched high, so the driver must + * read it immediately after link is established. + */ +static s32 e1000_check_downshift(struct e1000_hw *hw) +{ + s32 ret_val; + u16 phy_data; + + DEBUGFUNC("e1000_check_downshift"); + + if (hw->phy_type == e1000_phy_igp) { + ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH, + &phy_data); + if (ret_val) + return ret_val; + + hw->speed_downgraded = + (phy_data & IGP01E1000_PLHR_SS_DOWNGRADE) ? 1 : 0; + } else if (hw->phy_type == e1000_phy_m88) { + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + hw->speed_downgraded = (phy_data & M88E1000_PSSR_DOWNSHIFT) >> + M88E1000_PSSR_DOWNSHIFT_SHIFT; + } + + return E1000_SUCCESS; +} + +/** + * e1000_config_dsp_after_link_change + * @hw: Struct containing variables accessed by shared code + * @link_up: was link up at the time this was called + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + * + * 82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a + * gigabit link is achieved to improve link quality. + */ + +static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, bool link_up) +{ + s32 ret_val; + u16 phy_data, phy_saved_data, speed, duplex, i; + u16 dsp_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = + { IGP01E1000_PHY_AGC_PARAM_A, + IGP01E1000_PHY_AGC_PARAM_B, + IGP01E1000_PHY_AGC_PARAM_C, + IGP01E1000_PHY_AGC_PARAM_D + }; + u16 min_length, max_length; + + DEBUGFUNC("e1000_config_dsp_after_link_change"); + + if (hw->phy_type != e1000_phy_igp) + return E1000_SUCCESS; + + if (link_up) { + ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); + if (ret_val) { + DEBUGOUT("Error getting link speed and duplex\n"); + return ret_val; + } + + if (speed == SPEED_1000) { + + ret_val = + e1000_get_cable_length(hw, &min_length, + &max_length); + if (ret_val) + return ret_val; + + if ((hw->dsp_config_state == e1000_dsp_config_enabled) + && min_length >= e1000_igp_cable_length_50) { + + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + ret_val = + e1000_read_phy_reg(hw, + dsp_reg_array[i], + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= + ~IGP01E1000_PHY_EDAC_MU_INDEX; + + ret_val = + e1000_write_phy_reg(hw, + dsp_reg_array + [i], phy_data); + if (ret_val) + return ret_val; + } + hw->dsp_config_state = + e1000_dsp_config_activated; + } + + if ((hw->ffe_config_state == e1000_ffe_config_enabled) + && (min_length < e1000_igp_cable_length_50)) { + + u16 ffe_idle_err_timeout = + FFE_IDLE_ERR_COUNT_TIMEOUT_20; + u32 idle_errs = 0; + + /* clear previous idle error counts */ + ret_val = + e1000_read_phy_reg(hw, PHY_1000T_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + for (i = 0; i < ffe_idle_err_timeout; i++) { + udelay(1000); + ret_val = + e1000_read_phy_reg(hw, + PHY_1000T_STATUS, + &phy_data); + if (ret_val) + return ret_val; + + idle_errs += + (phy_data & + SR_1000T_IDLE_ERROR_CNT); + if (idle_errs > + SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT) + { + hw->ffe_config_state = + e1000_ffe_config_active; + + ret_val = + e1000_write_phy_reg(hw, + IGP01E1000_PHY_DSP_FFE, + IGP01E1000_PHY_DSP_FFE_CM_CP); + if (ret_val) + return ret_val; + break; + } + + if (idle_errs) + ffe_idle_err_timeout = + FFE_IDLE_ERR_COUNT_TIMEOUT_100; + } + } + } + } else { + if (hw->dsp_config_state == e1000_dsp_config_activated) { + /* Save off the current value of register 0x2F5B to be restored at + * the end of the routines. */ + ret_val = + e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + if (ret_val) + return ret_val; + + /* Disable the PHY transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + if (ret_val) + return ret_val; + + mdelay(20); + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_FORCE_GIGA); + if (ret_val) + return ret_val; + for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { + ret_val = + e1000_read_phy_reg(hw, dsp_reg_array[i], + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; + phy_data |= IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS; + + ret_val = + e1000_write_phy_reg(hw, dsp_reg_array[i], + phy_data); + if (ret_val) + return ret_val; + } + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_RESTART_AUTONEG); + if (ret_val) + return ret_val; + + mdelay(20); + + /* Now enable the transmitter */ + ret_val = + e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (ret_val) + return ret_val; + + hw->dsp_config_state = e1000_dsp_config_enabled; + } + + if (hw->ffe_config_state == e1000_ffe_config_active) { + /* Save off the current value of register 0x2F5B to be restored at + * the end of the routines. */ + ret_val = + e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); + + if (ret_val) + return ret_val; + + /* Disable the PHY transmitter */ + ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); + + if (ret_val) + return ret_val; + + mdelay(20); + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_FORCE_GIGA); + if (ret_val) + return ret_val; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_DSP_FFE, + IGP01E1000_PHY_DSP_FFE_DEFAULT); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, 0x0000, + IGP01E1000_IEEE_RESTART_AUTONEG); + if (ret_val) + return ret_val; + + mdelay(20); + + /* Now enable the transmitter */ + ret_val = + e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); + + if (ret_val) + return ret_val; + + hw->ffe_config_state = e1000_ffe_config_enabled; + } + } + return E1000_SUCCESS; +} + +/** + * e1000_set_phy_mode - Set PHY to class A mode + * @hw: Struct containing variables accessed by shared code + * + * Assumes the following operations will follow to enable the new class mode. + * 1. Do a PHY soft reset + * 2. Restart auto-negotiation or force link. + */ +static s32 e1000_set_phy_mode(struct e1000_hw *hw) +{ + s32 ret_val; + u16 eeprom_data; + + DEBUGFUNC("e1000_set_phy_mode"); + + if ((hw->mac_type == e1000_82545_rev_3) && + (hw->media_type == e1000_media_type_copper)) { + ret_val = + e1000_read_eeprom(hw, EEPROM_PHY_CLASS_WORD, 1, + &eeprom_data); + if (ret_val) { + return ret_val; + } + + if ((eeprom_data != EEPROM_RESERVED_WORD) && + (eeprom_data & EEPROM_PHY_CLASS_A)) { + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, + 0x000B); + if (ret_val) + return ret_val; + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, + 0x8104); + if (ret_val) + return ret_val; + + hw->phy_reset_disable = false; + } + } + + return E1000_SUCCESS; +} + +/** + * e1000_set_d3_lplu_state - set d3 link power state + * @hw: Struct containing variables accessed by shared code + * @active: true to enable lplu false to disable lplu. + * + * This function sets the lplu state according to the active flag. When + * activating lplu this function also disables smart speed and vise versa. + * lplu will not be activated unless the device autonegotiation advertisement + * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. + * + * returns: - E1000_ERR_PHY if fail to read/write the PHY + * E1000_SUCCESS at any other case. + */ +static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active) +{ + s32 ret_val; + u16 phy_data; + DEBUGFUNC("e1000_set_d3_lplu_state"); + + if (hw->phy_type != e1000_phy_igp) + return E1000_SUCCESS; + + /* During driver activity LPLU should not be used or it will attain link + * from the lowest speeds starting from 10Mbps. The capability is used for + * Dx transitions and states */ + if (hw->mac_type == e1000_82541_rev_2 + || hw->mac_type == e1000_82547_rev_2) { + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, &phy_data); + if (ret_val) + return ret_val; + } + + if (!active) { + if (hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547_rev_2) { + phy_data &= ~IGP01E1000_GMII_FLEX_SPD; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + phy_data); + if (ret_val) + return ret_val; + } + + /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during + * Dx states where the power conservation is most important. During + * driver activity we should enable SmartSpeed, so performance is + * maintained. */ + if (hw->smart_speed == e1000_smart_speed_on) { + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data |= IGP01E1000_PSCFR_SMART_SPEED; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } else if (hw->smart_speed == e1000_smart_speed_off) { + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + } + } else if ((hw->autoneg_advertised == AUTONEG_ADVERTISE_SPEED_DEFAULT) + || (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_ALL) + || (hw->autoneg_advertised == + AUTONEG_ADVERTISE_10_100_ALL)) { + + if (hw->mac_type == e1000_82541_rev_2 || + hw->mac_type == e1000_82547_rev_2) { + phy_data |= IGP01E1000_GMII_FLEX_SPD; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, + phy_data); + if (ret_val) + return ret_val; + } + + /* When LPLU is enabled we should disable SmartSpeed */ + ret_val = + e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; + ret_val = + e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, + phy_data); + if (ret_val) + return ret_val; + + } + return E1000_SUCCESS; +} + +/** + * e1000_set_vco_speed + * @hw: Struct containing variables accessed by shared code + * + * Change VCO speed register to improve Bit Error Rate performance of SERDES. + */ +static s32 e1000_set_vco_speed(struct e1000_hw *hw) +{ + s32 ret_val; + u16 default_page = 0; + u16 phy_data; + + DEBUGFUNC("e1000_set_vco_speed"); + + switch (hw->mac_type) { + case e1000_82545_rev_3: + case e1000_82546_rev_3: + break; + default: + return E1000_SUCCESS; + } + + /* Set PHY register 30, page 5, bit 8 to 0 */ + + ret_val = + e1000_read_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, &default_page); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data &= ~M88E1000_PHY_VCO_REG_BIT8; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); + if (ret_val) + return ret_val; + + /* Set PHY register 30, page 4, bit 11 to 1 */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); + if (ret_val) + return ret_val; + + phy_data |= M88E1000_PHY_VCO_REG_BIT11; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); + if (ret_val) + return ret_val; + + ret_val = + e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, default_page); + if (ret_val) + return ret_val; + + return E1000_SUCCESS; +} + + +/** + * e1000_enable_mng_pass_thru - check for bmc pass through + * @hw: Struct containing variables accessed by shared code + * + * Verifies the hardware needs to allow ARPs to be processed by the host + * returns: - true/false + */ +u32 e1000_enable_mng_pass_thru(struct e1000_hw *hw) +{ + u32 manc; + + if (hw->asf_firmware_present) { + manc = er32(MANC); + + if (!(manc & E1000_MANC_RCV_TCO_EN) || + !(manc & E1000_MANC_EN_MAC_ADDR_FILTER)) + return false; + if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN)) + return true; + } + return false; +} + +static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw) +{ + s32 ret_val; + u16 mii_status_reg; + u16 i; + + /* Polarity reversal workaround for forced 10F/10H links. */ + + /* Disable the transmitter on the PHY */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); + if (ret_val) + return ret_val; + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); + if (ret_val) + return ret_val; + + /* This loop will early-out if the NO link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Link Status bit + * to be clear. + */ + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0) + break; + mdelay(100); + } + + /* Recommended delay time after link has been lost */ + mdelay(1000); + + /* Now we will re-enable th transmitter on the PHY */ + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00); + if (ret_val) + return ret_val; + mdelay(50); + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000); + if (ret_val) + return ret_val; + + ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); + if (ret_val) + return ret_val; + + /* This loop will early-out if the link condition has been met. */ + for (i = PHY_FORCE_TIME; i > 0; i--) { + /* Read the MII Status Register and wait for Link Status bit + * to be set. + */ + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); + if (ret_val) + return ret_val; + + if (mii_status_reg & MII_SR_LINK_STATUS) + break; + mdelay(100); + } + return E1000_SUCCESS; +} + +/** + * e1000_get_auto_rd_done + * @hw: Struct containing variables accessed by shared code + * + * Check for EEPROM Auto Read bit done. + * returns: - E1000_ERR_RESET if fail to reset MAC + * E1000_SUCCESS at any other case. + */ +static s32 e1000_get_auto_rd_done(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_get_auto_rd_done"); + msleep(5); + return E1000_SUCCESS; +} + +/** + * e1000_get_phy_cfg_done + * @hw: Struct containing variables accessed by shared code + * + * Checks if the PHY configuration is done + * returns: - E1000_ERR_RESET if fail to reset MAC + * E1000_SUCCESS at any other case. + */ +static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw) +{ + DEBUGFUNC("e1000_get_phy_cfg_done"); + mdelay(10); + return E1000_SUCCESS; +} diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_hw-2.6.33-orig.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_hw-2.6.33-orig.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,3048 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +/* e1000_hw.h + * Structures, enums, and macros for the MAC + */ + +#ifndef _E1000_HW_H_ +#define _E1000_HW_H_ + +#include "e1000_osdep.h" + +/* Forward declarations of structures used by the shared code */ +struct e1000_hw; +struct e1000_hw_stats; + +/* Enumerated types specific to the e1000 hardware */ +/* Media Access Controlers */ +typedef enum { + e1000_undefined = 0, + e1000_82542_rev2_0, + e1000_82542_rev2_1, + e1000_82543, + e1000_82544, + e1000_82540, + e1000_82545, + e1000_82545_rev_3, + e1000_82546, + e1000_82546_rev_3, + e1000_82541, + e1000_82541_rev_2, + e1000_82547, + e1000_82547_rev_2, + e1000_num_macs +} e1000_mac_type; + +typedef enum { + e1000_eeprom_uninitialized = 0, + e1000_eeprom_spi, + e1000_eeprom_microwire, + e1000_eeprom_flash, + e1000_eeprom_none, /* No NVM support */ + e1000_num_eeprom_types +} e1000_eeprom_type; + +/* Media Types */ +typedef enum { + e1000_media_type_copper = 0, + e1000_media_type_fiber = 1, + e1000_media_type_internal_serdes = 2, + e1000_num_media_types +} e1000_media_type; + +typedef enum { + e1000_10_half = 0, + e1000_10_full = 1, + e1000_100_half = 2, + e1000_100_full = 3 +} e1000_speed_duplex_type; + +/* Flow Control Settings */ +typedef enum { + E1000_FC_NONE = 0, + E1000_FC_RX_PAUSE = 1, + E1000_FC_TX_PAUSE = 2, + E1000_FC_FULL = 3, + E1000_FC_DEFAULT = 0xFF +} e1000_fc_type; + +struct e1000_shadow_ram { + u16 eeprom_word; + bool modified; +}; + +/* PCI bus types */ +typedef enum { + e1000_bus_type_unknown = 0, + e1000_bus_type_pci, + e1000_bus_type_pcix, + e1000_bus_type_reserved +} e1000_bus_type; + +/* PCI bus speeds */ +typedef enum { + e1000_bus_speed_unknown = 0, + e1000_bus_speed_33, + e1000_bus_speed_66, + e1000_bus_speed_100, + e1000_bus_speed_120, + e1000_bus_speed_133, + e1000_bus_speed_reserved +} e1000_bus_speed; + +/* PCI bus widths */ +typedef enum { + e1000_bus_width_unknown = 0, + e1000_bus_width_32, + e1000_bus_width_64, + e1000_bus_width_reserved +} e1000_bus_width; + +/* PHY status info structure and supporting enums */ +typedef enum { + e1000_cable_length_50 = 0, + e1000_cable_length_50_80, + e1000_cable_length_80_110, + e1000_cable_length_110_140, + e1000_cable_length_140, + e1000_cable_length_undefined = 0xFF +} e1000_cable_length; + +typedef enum { + e1000_gg_cable_length_60 = 0, + e1000_gg_cable_length_60_115 = 1, + e1000_gg_cable_length_115_150 = 2, + e1000_gg_cable_length_150 = 4 +} e1000_gg_cable_length; + +typedef enum { + e1000_igp_cable_length_10 = 10, + e1000_igp_cable_length_20 = 20, + e1000_igp_cable_length_30 = 30, + e1000_igp_cable_length_40 = 40, + e1000_igp_cable_length_50 = 50, + e1000_igp_cable_length_60 = 60, + e1000_igp_cable_length_70 = 70, + e1000_igp_cable_length_80 = 80, + e1000_igp_cable_length_90 = 90, + e1000_igp_cable_length_100 = 100, + e1000_igp_cable_length_110 = 110, + e1000_igp_cable_length_115 = 115, + e1000_igp_cable_length_120 = 120, + e1000_igp_cable_length_130 = 130, + e1000_igp_cable_length_140 = 140, + e1000_igp_cable_length_150 = 150, + e1000_igp_cable_length_160 = 160, + e1000_igp_cable_length_170 = 170, + e1000_igp_cable_length_180 = 180 +} e1000_igp_cable_length; + +typedef enum { + e1000_10bt_ext_dist_enable_normal = 0, + e1000_10bt_ext_dist_enable_lower, + e1000_10bt_ext_dist_enable_undefined = 0xFF +} e1000_10bt_ext_dist_enable; + +typedef enum { + e1000_rev_polarity_normal = 0, + e1000_rev_polarity_reversed, + e1000_rev_polarity_undefined = 0xFF +} e1000_rev_polarity; + +typedef enum { + e1000_downshift_normal = 0, + e1000_downshift_activated, + e1000_downshift_undefined = 0xFF +} e1000_downshift; + +typedef enum { + e1000_smart_speed_default = 0, + e1000_smart_speed_on, + e1000_smart_speed_off +} e1000_smart_speed; + +typedef enum { + e1000_polarity_reversal_enabled = 0, + e1000_polarity_reversal_disabled, + e1000_polarity_reversal_undefined = 0xFF +} e1000_polarity_reversal; + +typedef enum { + e1000_auto_x_mode_manual_mdi = 0, + e1000_auto_x_mode_manual_mdix, + e1000_auto_x_mode_auto1, + e1000_auto_x_mode_auto2, + e1000_auto_x_mode_undefined = 0xFF +} e1000_auto_x_mode; + +typedef enum { + e1000_1000t_rx_status_not_ok = 0, + e1000_1000t_rx_status_ok, + e1000_1000t_rx_status_undefined = 0xFF +} e1000_1000t_rx_status; + +typedef enum { + e1000_phy_m88 = 0, + e1000_phy_igp, + e1000_phy_undefined = 0xFF +} e1000_phy_type; + +typedef enum { + e1000_ms_hw_default = 0, + e1000_ms_force_master, + e1000_ms_force_slave, + e1000_ms_auto +} e1000_ms_type; + +typedef enum { + e1000_ffe_config_enabled = 0, + e1000_ffe_config_active, + e1000_ffe_config_blocked +} e1000_ffe_config; + +typedef enum { + e1000_dsp_config_disabled = 0, + e1000_dsp_config_enabled, + e1000_dsp_config_activated, + e1000_dsp_config_undefined = 0xFF +} e1000_dsp_config; + +struct e1000_phy_info { + e1000_cable_length cable_length; + e1000_10bt_ext_dist_enable extended_10bt_distance; + e1000_rev_polarity cable_polarity; + e1000_downshift downshift; + e1000_polarity_reversal polarity_correction; + e1000_auto_x_mode mdix_mode; + e1000_1000t_rx_status local_rx; + e1000_1000t_rx_status remote_rx; +}; + +struct e1000_phy_stats { + u32 idle_errors; + u32 receive_errors; +}; + +struct e1000_eeprom_info { + e1000_eeprom_type type; + u16 word_size; + u16 opcode_bits; + u16 address_bits; + u16 delay_usec; + u16 page_size; +}; + +/* Flex ASF Information */ +#define E1000_HOST_IF_MAX_SIZE 2048 + +typedef enum { + e1000_byte_align = 0, + e1000_word_align = 1, + e1000_dword_align = 2 +} e1000_align_type; + +/* Error Codes */ +#define E1000_SUCCESS 0 +#define E1000_ERR_EEPROM 1 +#define E1000_ERR_PHY 2 +#define E1000_ERR_CONFIG 3 +#define E1000_ERR_PARAM 4 +#define E1000_ERR_MAC_TYPE 5 +#define E1000_ERR_PHY_TYPE 6 +#define E1000_ERR_RESET 9 +#define E1000_ERR_MASTER_REQUESTS_PENDING 10 +#define E1000_ERR_HOST_INTERFACE_COMMAND 11 +#define E1000_BLK_PHY_RESET 12 + +#define E1000_BYTE_SWAP_WORD(_value) ((((_value) & 0x00ff) << 8) | \ + (((_value) & 0xff00) >> 8)) + +/* Function prototypes */ +/* Initialization */ +s32 e1000_reset_hw(struct e1000_hw *hw); +s32 e1000_init_hw(struct e1000_hw *hw); +s32 e1000_set_mac_type(struct e1000_hw *hw); +void e1000_set_media_type(struct e1000_hw *hw); + +/* Link Configuration */ +s32 e1000_setup_link(struct e1000_hw *hw); +s32 e1000_phy_setup_autoneg(struct e1000_hw *hw); +void e1000_config_collision_dist(struct e1000_hw *hw); +s32 e1000_check_for_link(struct e1000_hw *hw); +s32 e1000_get_speed_and_duplex(struct e1000_hw *hw, u16 * speed, u16 * duplex); +s32 e1000_force_mac_fc(struct e1000_hw *hw); + +/* PHY */ +s32 e1000_read_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 * phy_data); +s32 e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, u16 data); +s32 e1000_phy_hw_reset(struct e1000_hw *hw); +s32 e1000_phy_reset(struct e1000_hw *hw); +s32 e1000_phy_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); +s32 e1000_validate_mdi_setting(struct e1000_hw *hw); + +/* EEPROM Functions */ +s32 e1000_init_eeprom_params(struct e1000_hw *hw); + +/* MNG HOST IF functions */ +u32 e1000_enable_mng_pass_thru(struct e1000_hw *hw); + +#define E1000_MNG_DHCP_TX_PAYLOAD_CMD 64 +#define E1000_HI_MAX_MNG_DATA_LENGTH 0x6F8 /* Host Interface data length */ + +#define E1000_MNG_DHCP_COMMAND_TIMEOUT 10 /* Time in ms to process MNG command */ +#define E1000_MNG_DHCP_COOKIE_OFFSET 0x6F0 /* Cookie offset */ +#define E1000_MNG_DHCP_COOKIE_LENGTH 0x10 /* Cookie length */ +#define E1000_MNG_IAMT_MODE 0x3 +#define E1000_MNG_ICH_IAMT_MODE 0x2 +#define E1000_IAMT_SIGNATURE 0x544D4149 /* Intel(R) Active Management Technology signature */ + +#define E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT 0x1 /* DHCP parsing enabled */ +#define E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT 0x2 /* DHCP parsing enabled */ +#define E1000_VFTA_ENTRY_SHIFT 0x5 +#define E1000_VFTA_ENTRY_MASK 0x7F +#define E1000_VFTA_ENTRY_BIT_SHIFT_MASK 0x1F + +struct e1000_host_mng_command_header { + u8 command_id; + u8 checksum; + u16 reserved1; + u16 reserved2; + u16 command_length; +}; + +struct e1000_host_mng_command_info { + struct e1000_host_mng_command_header command_header; /* Command Head/Command Result Head has 4 bytes */ + u8 command_data[E1000_HI_MAX_MNG_DATA_LENGTH]; /* Command data can length 0..0x658 */ +}; +#ifdef __BIG_ENDIAN +struct e1000_host_mng_dhcp_cookie { + u32 signature; + u16 vlan_id; + u8 reserved0; + u8 status; + u32 reserved1; + u8 checksum; + u8 reserved3; + u16 reserved2; +}; +#else +struct e1000_host_mng_dhcp_cookie { + u32 signature; + u8 status; + u8 reserved0; + u16 vlan_id; + u32 reserved1; + u16 reserved2; + u8 reserved3; + u8 checksum; +}; +#endif + +bool e1000_check_mng_mode(struct e1000_hw *hw); +s32 e1000_read_eeprom(struct e1000_hw *hw, u16 reg, u16 words, u16 * data); +s32 e1000_validate_eeprom_checksum(struct e1000_hw *hw); +s32 e1000_update_eeprom_checksum(struct e1000_hw *hw); +s32 e1000_write_eeprom(struct e1000_hw *hw, u16 reg, u16 words, u16 * data); +s32 e1000_read_mac_addr(struct e1000_hw *hw); + +/* Filters (multicast, vlan, receive) */ +u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 * mc_addr); +void e1000_mta_set(struct e1000_hw *hw, u32 hash_value); +void e1000_rar_set(struct e1000_hw *hw, u8 * mc_addr, u32 rar_index); +void e1000_write_vfta(struct e1000_hw *hw, u32 offset, u32 value); + +/* LED functions */ +s32 e1000_setup_led(struct e1000_hw *hw); +s32 e1000_cleanup_led(struct e1000_hw *hw); +s32 e1000_led_on(struct e1000_hw *hw); +s32 e1000_led_off(struct e1000_hw *hw); +s32 e1000_blink_led_start(struct e1000_hw *hw); + +/* Adaptive IFS Functions */ + +/* Everything else */ +void e1000_reset_adaptive(struct e1000_hw *hw); +void e1000_update_adaptive(struct e1000_hw *hw); +void e1000_tbi_adjust_stats(struct e1000_hw *hw, struct e1000_hw_stats *stats, + u32 frame_len, u8 * mac_addr); +void e1000_get_bus_info(struct e1000_hw *hw); +void e1000_pci_set_mwi(struct e1000_hw *hw); +void e1000_pci_clear_mwi(struct e1000_hw *hw); +void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc); +int e1000_pcix_get_mmrbc(struct e1000_hw *hw); +/* Port I/O is only supported on 82544 and newer */ +void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value); + +#define E1000_READ_REG_IO(a, reg) \ + e1000_read_reg_io((a), E1000_##reg) +#define E1000_WRITE_REG_IO(a, reg, val) \ + e1000_write_reg_io((a), E1000_##reg, val) + +/* PCI Device IDs */ +#define E1000_DEV_ID_82542 0x1000 +#define E1000_DEV_ID_82543GC_FIBER 0x1001 +#define E1000_DEV_ID_82543GC_COPPER 0x1004 +#define E1000_DEV_ID_82544EI_COPPER 0x1008 +#define E1000_DEV_ID_82544EI_FIBER 0x1009 +#define E1000_DEV_ID_82544GC_COPPER 0x100C +#define E1000_DEV_ID_82544GC_LOM 0x100D +#define E1000_DEV_ID_82540EM 0x100E +#define E1000_DEV_ID_82540EM_LOM 0x1015 +#define E1000_DEV_ID_82540EP_LOM 0x1016 +#define E1000_DEV_ID_82540EP 0x1017 +#define E1000_DEV_ID_82540EP_LP 0x101E +#define E1000_DEV_ID_82545EM_COPPER 0x100F +#define E1000_DEV_ID_82545EM_FIBER 0x1011 +#define E1000_DEV_ID_82545GM_COPPER 0x1026 +#define E1000_DEV_ID_82545GM_FIBER 0x1027 +#define E1000_DEV_ID_82545GM_SERDES 0x1028 +#define E1000_DEV_ID_82546EB_COPPER 0x1010 +#define E1000_DEV_ID_82546EB_FIBER 0x1012 +#define E1000_DEV_ID_82546EB_QUAD_COPPER 0x101D +#define E1000_DEV_ID_82541EI 0x1013 +#define E1000_DEV_ID_82541EI_MOBILE 0x1018 +#define E1000_DEV_ID_82541ER_LOM 0x1014 +#define E1000_DEV_ID_82541ER 0x1078 +#define E1000_DEV_ID_82547GI 0x1075 +#define E1000_DEV_ID_82541GI 0x1076 +#define E1000_DEV_ID_82541GI_MOBILE 0x1077 +#define E1000_DEV_ID_82541GI_LF 0x107C +#define E1000_DEV_ID_82546GB_COPPER 0x1079 +#define E1000_DEV_ID_82546GB_FIBER 0x107A +#define E1000_DEV_ID_82546GB_SERDES 0x107B +#define E1000_DEV_ID_82546GB_PCIE 0x108A +#define E1000_DEV_ID_82546GB_QUAD_COPPER 0x1099 +#define E1000_DEV_ID_82547EI 0x1019 +#define E1000_DEV_ID_82547EI_MOBILE 0x101A +#define E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3 0x10B5 + +#define NODE_ADDRESS_SIZE 6 +#define ETH_LENGTH_OF_ADDRESS 6 + +/* MAC decode size is 128K - This is the size of BAR0 */ +#define MAC_DECODE_SIZE (128 * 1024) + +#define E1000_82542_2_0_REV_ID 2 +#define E1000_82542_2_1_REV_ID 3 +#define E1000_REVISION_0 0 +#define E1000_REVISION_1 1 +#define E1000_REVISION_2 2 +#define E1000_REVISION_3 3 + +#define SPEED_10 10 +#define SPEED_100 100 +#define SPEED_1000 1000 +#define HALF_DUPLEX 1 +#define FULL_DUPLEX 2 + +/* The sizes (in bytes) of a ethernet packet */ +#define ENET_HEADER_SIZE 14 +#define MINIMUM_ETHERNET_FRAME_SIZE 64 /* With FCS */ +#define ETHERNET_FCS_SIZE 4 +#define MINIMUM_ETHERNET_PACKET_SIZE \ + (MINIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE) +#define CRC_LENGTH ETHERNET_FCS_SIZE +#define MAX_JUMBO_FRAME_SIZE 0x3F00 + +/* 802.1q VLAN Packet Sizes */ +#define VLAN_TAG_SIZE 4 /* 802.3ac tag (not DMAed) */ + +/* Ethertype field values */ +#define ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.3ac packet */ +#define ETHERNET_IP_TYPE 0x0800 /* IP packets */ +#define ETHERNET_ARP_TYPE 0x0806 /* Address Resolution Protocol (ARP) */ + +/* Packet Header defines */ +#define IP_PROTOCOL_TCP 6 +#define IP_PROTOCOL_UDP 0x11 + +/* This defines the bits that are set in the Interrupt Mask + * Set/Read Register. Each bit is documented below: + * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0) + * o RXSEQ = Receive Sequence Error + */ +#define POLL_IMS_ENABLE_MASK ( \ + E1000_IMS_RXDMT0 | \ + E1000_IMS_RXSEQ) + +/* This defines the bits that are set in the Interrupt Mask + * Set/Read Register. Each bit is documented below: + * o RXT0 = Receiver Timer Interrupt (ring 0) + * o TXDW = Transmit Descriptor Written Back + * o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0) + * o RXSEQ = Receive Sequence Error + * o LSC = Link Status Change + */ +#define IMS_ENABLE_MASK ( \ + E1000_IMS_RXT0 | \ + E1000_IMS_TXDW | \ + E1000_IMS_RXDMT0 | \ + E1000_IMS_RXSEQ | \ + E1000_IMS_LSC) + +/* Number of high/low register pairs in the RAR. The RAR (Receive Address + * Registers) holds the directed and multicast addresses that we monitor. We + * reserve one of these spots for our directed address, allowing us room for + * E1000_RAR_ENTRIES - 1 multicast addresses. + */ +#define E1000_RAR_ENTRIES 15 + +#define MIN_NUMBER_OF_DESCRIPTORS 8 +#define MAX_NUMBER_OF_DESCRIPTORS 0xFFF8 + +/* Receive Descriptor */ +struct e1000_rx_desc { + __le64 buffer_addr; /* Address of the descriptor's data buffer */ + __le16 length; /* Length of data DMAed into data buffer */ + __le16 csum; /* Packet checksum */ + u8 status; /* Descriptor status */ + u8 errors; /* Descriptor Errors */ + __le16 special; +}; + +/* Receive Descriptor - Extended */ +union e1000_rx_desc_extended { + struct { + __le64 buffer_addr; + __le64 reserved; + } read; + struct { + struct { + __le32 mrq; /* Multiple Rx Queues */ + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length; + __le16 vlan; /* VLAN tag */ + } upper; + } wb; /* writeback */ +}; + +#define MAX_PS_BUFFERS 4 +/* Receive Descriptor - Packet Split */ +union e1000_rx_desc_packet_split { + struct { + /* one buffer for protocol header(s), three data buffers */ + __le64 buffer_addr[MAX_PS_BUFFERS]; + } read; + struct { + struct { + __le32 mrq; /* Multiple Rx Queues */ + union { + __le32 rss; /* RSS Hash */ + struct { + __le16 ip_id; /* IP id */ + __le16 csum; /* Packet Checksum */ + } csum_ip; + } hi_dword; + } lower; + struct { + __le32 status_error; /* ext status/error */ + __le16 length0; /* length of buffer 0 */ + __le16 vlan; /* VLAN tag */ + } middle; + struct { + __le16 header_status; + __le16 length[3]; /* length of buffers 1-3 */ + } upper; + __le64 reserved; + } wb; /* writeback */ +}; + +/* Receive Descriptor bit definitions */ +#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */ +#define E1000_RXD_STAT_EOP 0x02 /* End of Packet */ +#define E1000_RXD_STAT_IXSM 0x04 /* Ignore checksum */ +#define E1000_RXD_STAT_VP 0x08 /* IEEE VLAN Packet */ +#define E1000_RXD_STAT_UDPCS 0x10 /* UDP xsum calculated */ +#define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */ +#define E1000_RXD_STAT_IPCS 0x40 /* IP xsum calculated */ +#define E1000_RXD_STAT_PIF 0x80 /* passed in-exact filter */ +#define E1000_RXD_STAT_IPIDV 0x200 /* IP identification valid */ +#define E1000_RXD_STAT_UDPV 0x400 /* Valid UDP checksum */ +#define E1000_RXD_STAT_ACK 0x8000 /* ACK Packet indication */ +#define E1000_RXD_ERR_CE 0x01 /* CRC Error */ +#define E1000_RXD_ERR_SE 0x02 /* Symbol Error */ +#define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */ +#define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */ +#define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */ +#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */ +#define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */ +#define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */ +#define E1000_RXD_SPC_PRI_MASK 0xE000 /* Priority is in upper 3 bits */ +#define E1000_RXD_SPC_PRI_SHIFT 13 +#define E1000_RXD_SPC_CFI_MASK 0x1000 /* CFI is bit 12 */ +#define E1000_RXD_SPC_CFI_SHIFT 12 + +#define E1000_RXDEXT_STATERR_CE 0x01000000 +#define E1000_RXDEXT_STATERR_SE 0x02000000 +#define E1000_RXDEXT_STATERR_SEQ 0x04000000 +#define E1000_RXDEXT_STATERR_CXE 0x10000000 +#define E1000_RXDEXT_STATERR_TCPE 0x20000000 +#define E1000_RXDEXT_STATERR_IPE 0x40000000 +#define E1000_RXDEXT_STATERR_RXE 0x80000000 + +#define E1000_RXDPS_HDRSTAT_HDRSP 0x00008000 +#define E1000_RXDPS_HDRSTAT_HDRLEN_MASK 0x000003FF + +/* mask to determine if packets should be dropped due to frame errors */ +#define E1000_RXD_ERR_FRAME_ERR_MASK ( \ + E1000_RXD_ERR_CE | \ + E1000_RXD_ERR_SE | \ + E1000_RXD_ERR_SEQ | \ + E1000_RXD_ERR_CXE | \ + E1000_RXD_ERR_RXE) + +/* Same mask, but for extended and packet split descriptors */ +#define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \ + E1000_RXDEXT_STATERR_CE | \ + E1000_RXDEXT_STATERR_SE | \ + E1000_RXDEXT_STATERR_SEQ | \ + E1000_RXDEXT_STATERR_CXE | \ + E1000_RXDEXT_STATERR_RXE) + +/* Transmit Descriptor */ +struct e1000_tx_desc { + __le64 buffer_addr; /* Address of the descriptor's data buffer */ + union { + __le32 data; + struct { + __le16 length; /* Data buffer length */ + u8 cso; /* Checksum offset */ + u8 cmd; /* Descriptor control */ + } flags; + } lower; + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 css; /* Checksum start */ + __le16 special; + } fields; + } upper; +}; + +/* Transmit Descriptor bit definitions */ +#define E1000_TXD_DTYP_D 0x00100000 /* Data Descriptor */ +#define E1000_TXD_DTYP_C 0x00000000 /* Context Descriptor */ +#define E1000_TXD_POPTS_IXSM 0x01 /* Insert IP checksum */ +#define E1000_TXD_POPTS_TXSM 0x02 /* Insert TCP/UDP checksum */ +#define E1000_TXD_CMD_EOP 0x01000000 /* End of Packet */ +#define E1000_TXD_CMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */ +#define E1000_TXD_CMD_IC 0x04000000 /* Insert Checksum */ +#define E1000_TXD_CMD_RS 0x08000000 /* Report Status */ +#define E1000_TXD_CMD_RPS 0x10000000 /* Report Packet Sent */ +#define E1000_TXD_CMD_DEXT 0x20000000 /* Descriptor extension (0 = legacy) */ +#define E1000_TXD_CMD_VLE 0x40000000 /* Add VLAN tag */ +#define E1000_TXD_CMD_IDE 0x80000000 /* Enable Tidv register */ +#define E1000_TXD_STAT_DD 0x00000001 /* Descriptor Done */ +#define E1000_TXD_STAT_EC 0x00000002 /* Excess Collisions */ +#define E1000_TXD_STAT_LC 0x00000004 /* Late Collisions */ +#define E1000_TXD_STAT_TU 0x00000008 /* Transmit underrun */ +#define E1000_TXD_CMD_TCP 0x01000000 /* TCP packet */ +#define E1000_TXD_CMD_IP 0x02000000 /* IP packet */ +#define E1000_TXD_CMD_TSE 0x04000000 /* TCP Seg enable */ +#define E1000_TXD_STAT_TC 0x00000004 /* Tx Underrun */ + +/* Offload Context Descriptor */ +struct e1000_context_desc { + union { + __le32 ip_config; + struct { + u8 ipcss; /* IP checksum start */ + u8 ipcso; /* IP checksum offset */ + __le16 ipcse; /* IP checksum end */ + } ip_fields; + } lower_setup; + union { + __le32 tcp_config; + struct { + u8 tucss; /* TCP checksum start */ + u8 tucso; /* TCP checksum offset */ + __le16 tucse; /* TCP checksum end */ + } tcp_fields; + } upper_setup; + __le32 cmd_and_length; /* */ + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 hdr_len; /* Header length */ + __le16 mss; /* Maximum segment size */ + } fields; + } tcp_seg_setup; +}; + +/* Offload data descriptor */ +struct e1000_data_desc { + __le64 buffer_addr; /* Address of the descriptor's buffer address */ + union { + __le32 data; + struct { + __le16 length; /* Data buffer length */ + u8 typ_len_ext; /* */ + u8 cmd; /* */ + } flags; + } lower; + union { + __le32 data; + struct { + u8 status; /* Descriptor status */ + u8 popts; /* Packet Options */ + __le16 special; /* */ + } fields; + } upper; +}; + +/* Filters */ +#define E1000_NUM_UNICAST 16 /* Unicast filter entries */ +#define E1000_MC_TBL_SIZE 128 /* Multicast Filter Table (4096 bits) */ +#define E1000_VLAN_FILTER_TBL_SIZE 128 /* VLAN Filter Table (4096 bits) */ + +/* Receive Address Register */ +struct e1000_rar { + volatile __le32 low; /* receive address low */ + volatile __le32 high; /* receive address high */ +}; + +/* Number of entries in the Multicast Table Array (MTA). */ +#define E1000_NUM_MTA_REGISTERS 128 + +/* IPv4 Address Table Entry */ +struct e1000_ipv4_at_entry { + volatile u32 ipv4_addr; /* IP Address (RW) */ + volatile u32 reserved; +}; + +/* Four wakeup IP addresses are supported */ +#define E1000_WAKEUP_IP_ADDRESS_COUNT_MAX 4 +#define E1000_IP4AT_SIZE E1000_WAKEUP_IP_ADDRESS_COUNT_MAX +#define E1000_IP6AT_SIZE 1 + +/* IPv6 Address Table Entry */ +struct e1000_ipv6_at_entry { + volatile u8 ipv6_addr[16]; +}; + +/* Flexible Filter Length Table Entry */ +struct e1000_fflt_entry { + volatile u32 length; /* Flexible Filter Length (RW) */ + volatile u32 reserved; +}; + +/* Flexible Filter Mask Table Entry */ +struct e1000_ffmt_entry { + volatile u32 mask; /* Flexible Filter Mask (RW) */ + volatile u32 reserved; +}; + +/* Flexible Filter Value Table Entry */ +struct e1000_ffvt_entry { + volatile u32 value; /* Flexible Filter Value (RW) */ + volatile u32 reserved; +}; + +/* Four Flexible Filters are supported */ +#define E1000_FLEXIBLE_FILTER_COUNT_MAX 4 + +/* Each Flexible Filter is at most 128 (0x80) bytes in length */ +#define E1000_FLEXIBLE_FILTER_SIZE_MAX 128 + +#define E1000_FFLT_SIZE E1000_FLEXIBLE_FILTER_COUNT_MAX +#define E1000_FFMT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX +#define E1000_FFVT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX + +#define E1000_DISABLE_SERDES_LOOPBACK 0x0400 + +/* Register Set. (82543, 82544) + * + * Registers are defined to be 32 bits and should be accessed as 32 bit values. + * These registers are physically located on the NIC, but are mapped into the + * host memory address space. + * + * RW - register is both readable and writable + * RO - register is read only + * WO - register is write only + * R/clr - register is read only and is cleared when read + * A - register array + */ +#define E1000_CTRL 0x00000 /* Device Control - RW */ +#define E1000_CTRL_DUP 0x00004 /* Device Control Duplicate (Shadow) - RW */ +#define E1000_STATUS 0x00008 /* Device Status - RO */ +#define E1000_EECD 0x00010 /* EEPROM/Flash Control - RW */ +#define E1000_EERD 0x00014 /* EEPROM Read - RW */ +#define E1000_CTRL_EXT 0x00018 /* Extended Device Control - RW */ +#define E1000_FLA 0x0001C /* Flash Access - RW */ +#define E1000_MDIC 0x00020 /* MDI Control - RW */ +#define E1000_SCTL 0x00024 /* SerDes Control - RW */ +#define E1000_FEXTNVM 0x00028 /* Future Extended NVM register */ +#define E1000_FCAL 0x00028 /* Flow Control Address Low - RW */ +#define E1000_FCAH 0x0002C /* Flow Control Address High -RW */ +#define E1000_FCT 0x00030 /* Flow Control Type - RW */ +#define E1000_VET 0x00038 /* VLAN Ether Type - RW */ +#define E1000_ICR 0x000C0 /* Interrupt Cause Read - R/clr */ +#define E1000_ITR 0x000C4 /* Interrupt Throttling Rate - RW */ +#define E1000_ICS 0x000C8 /* Interrupt Cause Set - WO */ +#define E1000_IMS 0x000D0 /* Interrupt Mask Set - RW */ +#define E1000_IMC 0x000D8 /* Interrupt Mask Clear - WO */ +#define E1000_IAM 0x000E0 /* Interrupt Acknowledge Auto Mask */ +#define E1000_RCTL 0x00100 /* RX Control - RW */ +#define E1000_RDTR1 0x02820 /* RX Delay Timer (1) - RW */ +#define E1000_RDBAL1 0x02900 /* RX Descriptor Base Address Low (1) - RW */ +#define E1000_RDBAH1 0x02904 /* RX Descriptor Base Address High (1) - RW */ +#define E1000_RDLEN1 0x02908 /* RX Descriptor Length (1) - RW */ +#define E1000_RDH1 0x02910 /* RX Descriptor Head (1) - RW */ +#define E1000_RDT1 0x02918 /* RX Descriptor Tail (1) - RW */ +#define E1000_FCTTV 0x00170 /* Flow Control Transmit Timer Value - RW */ +#define E1000_TXCW 0x00178 /* TX Configuration Word - RW */ +#define E1000_RXCW 0x00180 /* RX Configuration Word - RO */ +#define E1000_TCTL 0x00400 /* TX Control - RW */ +#define E1000_TCTL_EXT 0x00404 /* Extended TX Control - RW */ +#define E1000_TIPG 0x00410 /* TX Inter-packet gap -RW */ +#define E1000_TBT 0x00448 /* TX Burst Timer - RW */ +#define E1000_AIT 0x00458 /* Adaptive Interframe Spacing Throttle - RW */ +#define E1000_LEDCTL 0x00E00 /* LED Control - RW */ +#define E1000_EXTCNF_CTRL 0x00F00 /* Extended Configuration Control */ +#define E1000_EXTCNF_SIZE 0x00F08 /* Extended Configuration Size */ +#define E1000_PHY_CTRL 0x00F10 /* PHY Control Register in CSR */ +#define FEXTNVM_SW_CONFIG 0x0001 +#define E1000_PBA 0x01000 /* Packet Buffer Allocation - RW */ +#define E1000_PBS 0x01008 /* Packet Buffer Size */ +#define E1000_EEMNGCTL 0x01010 /* MNG EEprom Control */ +#define E1000_FLASH_UPDATES 1000 +#define E1000_EEARBC 0x01024 /* EEPROM Auto Read Bus Control */ +#define E1000_FLASHT 0x01028 /* FLASH Timer Register */ +#define E1000_EEWR 0x0102C /* EEPROM Write Register - RW */ +#define E1000_FLSWCTL 0x01030 /* FLASH control register */ +#define E1000_FLSWDATA 0x01034 /* FLASH data register */ +#define E1000_FLSWCNT 0x01038 /* FLASH Access Counter */ +#define E1000_FLOP 0x0103C /* FLASH Opcode Register */ +#define E1000_ERT 0x02008 /* Early Rx Threshold - RW */ +#define E1000_FCRTL 0x02160 /* Flow Control Receive Threshold Low - RW */ +#define E1000_FCRTH 0x02168 /* Flow Control Receive Threshold High - RW */ +#define E1000_PSRCTL 0x02170 /* Packet Split Receive Control - RW */ +#define E1000_RDBAL 0x02800 /* RX Descriptor Base Address Low - RW */ +#define E1000_RDBAH 0x02804 /* RX Descriptor Base Address High - RW */ +#define E1000_RDLEN 0x02808 /* RX Descriptor Length - RW */ +#define E1000_RDH 0x02810 /* RX Descriptor Head - RW */ +#define E1000_RDT 0x02818 /* RX Descriptor Tail - RW */ +#define E1000_RDTR 0x02820 /* RX Delay Timer - RW */ +#define E1000_RDBAL0 E1000_RDBAL /* RX Desc Base Address Low (0) - RW */ +#define E1000_RDBAH0 E1000_RDBAH /* RX Desc Base Address High (0) - RW */ +#define E1000_RDLEN0 E1000_RDLEN /* RX Desc Length (0) - RW */ +#define E1000_RDH0 E1000_RDH /* RX Desc Head (0) - RW */ +#define E1000_RDT0 E1000_RDT /* RX Desc Tail (0) - RW */ +#define E1000_RDTR0 E1000_RDTR /* RX Delay Timer (0) - RW */ +#define E1000_RXDCTL 0x02828 /* RX Descriptor Control queue 0 - RW */ +#define E1000_RXDCTL1 0x02928 /* RX Descriptor Control queue 1 - RW */ +#define E1000_RADV 0x0282C /* RX Interrupt Absolute Delay Timer - RW */ +#define E1000_RSRPD 0x02C00 /* RX Small Packet Detect - RW */ +#define E1000_RAID 0x02C08 /* Receive Ack Interrupt Delay - RW */ +#define E1000_TXDMAC 0x03000 /* TX DMA Control - RW */ +#define E1000_KABGTXD 0x03004 /* AFE Band Gap Transmit Ref Data */ +#define E1000_TDFH 0x03410 /* TX Data FIFO Head - RW */ +#define E1000_TDFT 0x03418 /* TX Data FIFO Tail - RW */ +#define E1000_TDFHS 0x03420 /* TX Data FIFO Head Saved - RW */ +#define E1000_TDFTS 0x03428 /* TX Data FIFO Tail Saved - RW */ +#define E1000_TDFPC 0x03430 /* TX Data FIFO Packet Count - RW */ +#define E1000_TDBAL 0x03800 /* TX Descriptor Base Address Low - RW */ +#define E1000_TDBAH 0x03804 /* TX Descriptor Base Address High - RW */ +#define E1000_TDLEN 0x03808 /* TX Descriptor Length - RW */ +#define E1000_TDH 0x03810 /* TX Descriptor Head - RW */ +#define E1000_TDT 0x03818 /* TX Descripotr Tail - RW */ +#define E1000_TIDV 0x03820 /* TX Interrupt Delay Value - RW */ +#define E1000_TXDCTL 0x03828 /* TX Descriptor Control - RW */ +#define E1000_TADV 0x0382C /* TX Interrupt Absolute Delay Val - RW */ +#define E1000_TSPMT 0x03830 /* TCP Segmentation PAD & Min Threshold - RW */ +#define E1000_TARC0 0x03840 /* TX Arbitration Count (0) */ +#define E1000_TDBAL1 0x03900 /* TX Desc Base Address Low (1) - RW */ +#define E1000_TDBAH1 0x03904 /* TX Desc Base Address High (1) - RW */ +#define E1000_TDLEN1 0x03908 /* TX Desc Length (1) - RW */ +#define E1000_TDH1 0x03910 /* TX Desc Head (1) - RW */ +#define E1000_TDT1 0x03918 /* TX Desc Tail (1) - RW */ +#define E1000_TXDCTL1 0x03928 /* TX Descriptor Control (1) - RW */ +#define E1000_TARC1 0x03940 /* TX Arbitration Count (1) */ +#define E1000_CRCERRS 0x04000 /* CRC Error Count - R/clr */ +#define E1000_ALGNERRC 0x04004 /* Alignment Error Count - R/clr */ +#define E1000_SYMERRS 0x04008 /* Symbol Error Count - R/clr */ +#define E1000_RXERRC 0x0400C /* Receive Error Count - R/clr */ +#define E1000_MPC 0x04010 /* Missed Packet Count - R/clr */ +#define E1000_SCC 0x04014 /* Single Collision Count - R/clr */ +#define E1000_ECOL 0x04018 /* Excessive Collision Count - R/clr */ +#define E1000_MCC 0x0401C /* Multiple Collision Count - R/clr */ +#define E1000_LATECOL 0x04020 /* Late Collision Count - R/clr */ +#define E1000_COLC 0x04028 /* Collision Count - R/clr */ +#define E1000_DC 0x04030 /* Defer Count - R/clr */ +#define E1000_TNCRS 0x04034 /* TX-No CRS - R/clr */ +#define E1000_SEC 0x04038 /* Sequence Error Count - R/clr */ +#define E1000_CEXTERR 0x0403C /* Carrier Extension Error Count - R/clr */ +#define E1000_RLEC 0x04040 /* Receive Length Error Count - R/clr */ +#define E1000_XONRXC 0x04048 /* XON RX Count - R/clr */ +#define E1000_XONTXC 0x0404C /* XON TX Count - R/clr */ +#define E1000_XOFFRXC 0x04050 /* XOFF RX Count - R/clr */ +#define E1000_XOFFTXC 0x04054 /* XOFF TX Count - R/clr */ +#define E1000_FCRUC 0x04058 /* Flow Control RX Unsupported Count- R/clr */ +#define E1000_PRC64 0x0405C /* Packets RX (64 bytes) - R/clr */ +#define E1000_PRC127 0x04060 /* Packets RX (65-127 bytes) - R/clr */ +#define E1000_PRC255 0x04064 /* Packets RX (128-255 bytes) - R/clr */ +#define E1000_PRC511 0x04068 /* Packets RX (255-511 bytes) - R/clr */ +#define E1000_PRC1023 0x0406C /* Packets RX (512-1023 bytes) - R/clr */ +#define E1000_PRC1522 0x04070 /* Packets RX (1024-1522 bytes) - R/clr */ +#define E1000_GPRC 0x04074 /* Good Packets RX Count - R/clr */ +#define E1000_BPRC 0x04078 /* Broadcast Packets RX Count - R/clr */ +#define E1000_MPRC 0x0407C /* Multicast Packets RX Count - R/clr */ +#define E1000_GPTC 0x04080 /* Good Packets TX Count - R/clr */ +#define E1000_GORCL 0x04088 /* Good Octets RX Count Low - R/clr */ +#define E1000_GORCH 0x0408C /* Good Octets RX Count High - R/clr */ +#define E1000_GOTCL 0x04090 /* Good Octets TX Count Low - R/clr */ +#define E1000_GOTCH 0x04094 /* Good Octets TX Count High - R/clr */ +#define E1000_RNBC 0x040A0 /* RX No Buffers Count - R/clr */ +#define E1000_RUC 0x040A4 /* RX Undersize Count - R/clr */ +#define E1000_RFC 0x040A8 /* RX Fragment Count - R/clr */ +#define E1000_ROC 0x040AC /* RX Oversize Count - R/clr */ +#define E1000_RJC 0x040B0 /* RX Jabber Count - R/clr */ +#define E1000_MGTPRC 0x040B4 /* Management Packets RX Count - R/clr */ +#define E1000_MGTPDC 0x040B8 /* Management Packets Dropped Count - R/clr */ +#define E1000_MGTPTC 0x040BC /* Management Packets TX Count - R/clr */ +#define E1000_TORL 0x040C0 /* Total Octets RX Low - R/clr */ +#define E1000_TORH 0x040C4 /* Total Octets RX High - R/clr */ +#define E1000_TOTL 0x040C8 /* Total Octets TX Low - R/clr */ +#define E1000_TOTH 0x040CC /* Total Octets TX High - R/clr */ +#define E1000_TPR 0x040D0 /* Total Packets RX - R/clr */ +#define E1000_TPT 0x040D4 /* Total Packets TX - R/clr */ +#define E1000_PTC64 0x040D8 /* Packets TX (64 bytes) - R/clr */ +#define E1000_PTC127 0x040DC /* Packets TX (65-127 bytes) - R/clr */ +#define E1000_PTC255 0x040E0 /* Packets TX (128-255 bytes) - R/clr */ +#define E1000_PTC511 0x040E4 /* Packets TX (256-511 bytes) - R/clr */ +#define E1000_PTC1023 0x040E8 /* Packets TX (512-1023 bytes) - R/clr */ +#define E1000_PTC1522 0x040EC /* Packets TX (1024-1522 Bytes) - R/clr */ +#define E1000_MPTC 0x040F0 /* Multicast Packets TX Count - R/clr */ +#define E1000_BPTC 0x040F4 /* Broadcast Packets TX Count - R/clr */ +#define E1000_TSCTC 0x040F8 /* TCP Segmentation Context TX - R/clr */ +#define E1000_TSCTFC 0x040FC /* TCP Segmentation Context TX Fail - R/clr */ +#define E1000_IAC 0x04100 /* Interrupt Assertion Count */ +#define E1000_ICRXPTC 0x04104 /* Interrupt Cause Rx Packet Timer Expire Count */ +#define E1000_ICRXATC 0x04108 /* Interrupt Cause Rx Absolute Timer Expire Count */ +#define E1000_ICTXPTC 0x0410C /* Interrupt Cause Tx Packet Timer Expire Count */ +#define E1000_ICTXATC 0x04110 /* Interrupt Cause Tx Absolute Timer Expire Count */ +#define E1000_ICTXQEC 0x04118 /* Interrupt Cause Tx Queue Empty Count */ +#define E1000_ICTXQMTC 0x0411C /* Interrupt Cause Tx Queue Minimum Threshold Count */ +#define E1000_ICRXDMTC 0x04120 /* Interrupt Cause Rx Descriptor Minimum Threshold Count */ +#define E1000_ICRXOC 0x04124 /* Interrupt Cause Receiver Overrun Count */ +#define E1000_RXCSUM 0x05000 /* RX Checksum Control - RW */ +#define E1000_RFCTL 0x05008 /* Receive Filter Control */ +#define E1000_MTA 0x05200 /* Multicast Table Array - RW Array */ +#define E1000_RA 0x05400 /* Receive Address - RW Array */ +#define E1000_VFTA 0x05600 /* VLAN Filter Table Array - RW Array */ +#define E1000_WUC 0x05800 /* Wakeup Control - RW */ +#define E1000_WUFC 0x05808 /* Wakeup Filter Control - RW */ +#define E1000_WUS 0x05810 /* Wakeup Status - RO */ +#define E1000_MANC 0x05820 /* Management Control - RW */ +#define E1000_IPAV 0x05838 /* IP Address Valid - RW */ +#define E1000_IP4AT 0x05840 /* IPv4 Address Table - RW Array */ +#define E1000_IP6AT 0x05880 /* IPv6 Address Table - RW Array */ +#define E1000_WUPL 0x05900 /* Wakeup Packet Length - RW */ +#define E1000_WUPM 0x05A00 /* Wakeup Packet Memory - RO A */ +#define E1000_FFLT 0x05F00 /* Flexible Filter Length Table - RW Array */ +#define E1000_HOST_IF 0x08800 /* Host Interface */ +#define E1000_FFMT 0x09000 /* Flexible Filter Mask Table - RW Array */ +#define E1000_FFVT 0x09800 /* Flexible Filter Value Table - RW Array */ + +#define E1000_KUMCTRLSTA 0x00034 /* MAC-PHY interface - RW */ +#define E1000_MDPHYA 0x0003C /* PHY address - RW */ +#define E1000_MANC2H 0x05860 /* Managment Control To Host - RW */ +#define E1000_SW_FW_SYNC 0x05B5C /* Software-Firmware Synchronization - RW */ + +#define E1000_GCR 0x05B00 /* PCI-Ex Control */ +#define E1000_GSCL_1 0x05B10 /* PCI-Ex Statistic Control #1 */ +#define E1000_GSCL_2 0x05B14 /* PCI-Ex Statistic Control #2 */ +#define E1000_GSCL_3 0x05B18 /* PCI-Ex Statistic Control #3 */ +#define E1000_GSCL_4 0x05B1C /* PCI-Ex Statistic Control #4 */ +#define E1000_FACTPS 0x05B30 /* Function Active and Power State to MNG */ +#define E1000_SWSM 0x05B50 /* SW Semaphore */ +#define E1000_FWSM 0x05B54 /* FW Semaphore */ +#define E1000_FFLT_DBG 0x05F04 /* Debug Register */ +#define E1000_HICR 0x08F00 /* Host Interface Control */ + +/* RSS registers */ +#define E1000_CPUVEC 0x02C10 /* CPU Vector Register - RW */ +#define E1000_MRQC 0x05818 /* Multiple Receive Control - RW */ +#define E1000_RETA 0x05C00 /* Redirection Table - RW Array */ +#define E1000_RSSRK 0x05C80 /* RSS Random Key - RW Array */ +#define E1000_RSSIM 0x05864 /* RSS Interrupt Mask */ +#define E1000_RSSIR 0x05868 /* RSS Interrupt Request */ +/* Register Set (82542) + * + * Some of the 82542 registers are located at different offsets than they are + * in more current versions of the 8254x. Despite the difference in location, + * the registers function in the same manner. + */ +#define E1000_82542_CTRL E1000_CTRL +#define E1000_82542_CTRL_DUP E1000_CTRL_DUP +#define E1000_82542_STATUS E1000_STATUS +#define E1000_82542_EECD E1000_EECD +#define E1000_82542_EERD E1000_EERD +#define E1000_82542_CTRL_EXT E1000_CTRL_EXT +#define E1000_82542_FLA E1000_FLA +#define E1000_82542_MDIC E1000_MDIC +#define E1000_82542_SCTL E1000_SCTL +#define E1000_82542_FEXTNVM E1000_FEXTNVM +#define E1000_82542_FCAL E1000_FCAL +#define E1000_82542_FCAH E1000_FCAH +#define E1000_82542_FCT E1000_FCT +#define E1000_82542_VET E1000_VET +#define E1000_82542_RA 0x00040 +#define E1000_82542_ICR E1000_ICR +#define E1000_82542_ITR E1000_ITR +#define E1000_82542_ICS E1000_ICS +#define E1000_82542_IMS E1000_IMS +#define E1000_82542_IMC E1000_IMC +#define E1000_82542_RCTL E1000_RCTL +#define E1000_82542_RDTR 0x00108 +#define E1000_82542_RDBAL 0x00110 +#define E1000_82542_RDBAH 0x00114 +#define E1000_82542_RDLEN 0x00118 +#define E1000_82542_RDH 0x00120 +#define E1000_82542_RDT 0x00128 +#define E1000_82542_RDTR0 E1000_82542_RDTR +#define E1000_82542_RDBAL0 E1000_82542_RDBAL +#define E1000_82542_RDBAH0 E1000_82542_RDBAH +#define E1000_82542_RDLEN0 E1000_82542_RDLEN +#define E1000_82542_RDH0 E1000_82542_RDH +#define E1000_82542_RDT0 E1000_82542_RDT +#define E1000_82542_SRRCTL(_n) (0x280C + ((_n) << 8)) /* Split and Replication + * RX Control - RW */ +#define E1000_82542_DCA_RXCTRL(_n) (0x02814 + ((_n) << 8)) +#define E1000_82542_RDBAH3 0x02B04 /* RX Desc Base High Queue 3 - RW */ +#define E1000_82542_RDBAL3 0x02B00 /* RX Desc Low Queue 3 - RW */ +#define E1000_82542_RDLEN3 0x02B08 /* RX Desc Length Queue 3 - RW */ +#define E1000_82542_RDH3 0x02B10 /* RX Desc Head Queue 3 - RW */ +#define E1000_82542_RDT3 0x02B18 /* RX Desc Tail Queue 3 - RW */ +#define E1000_82542_RDBAL2 0x02A00 /* RX Desc Base Low Queue 2 - RW */ +#define E1000_82542_RDBAH2 0x02A04 /* RX Desc Base High Queue 2 - RW */ +#define E1000_82542_RDLEN2 0x02A08 /* RX Desc Length Queue 2 - RW */ +#define E1000_82542_RDH2 0x02A10 /* RX Desc Head Queue 2 - RW */ +#define E1000_82542_RDT2 0x02A18 /* RX Desc Tail Queue 2 - RW */ +#define E1000_82542_RDTR1 0x00130 +#define E1000_82542_RDBAL1 0x00138 +#define E1000_82542_RDBAH1 0x0013C +#define E1000_82542_RDLEN1 0x00140 +#define E1000_82542_RDH1 0x00148 +#define E1000_82542_RDT1 0x00150 +#define E1000_82542_FCRTH 0x00160 +#define E1000_82542_FCRTL 0x00168 +#define E1000_82542_FCTTV E1000_FCTTV +#define E1000_82542_TXCW E1000_TXCW +#define E1000_82542_RXCW E1000_RXCW +#define E1000_82542_MTA 0x00200 +#define E1000_82542_TCTL E1000_TCTL +#define E1000_82542_TCTL_EXT E1000_TCTL_EXT +#define E1000_82542_TIPG E1000_TIPG +#define E1000_82542_TDBAL 0x00420 +#define E1000_82542_TDBAH 0x00424 +#define E1000_82542_TDLEN 0x00428 +#define E1000_82542_TDH 0x00430 +#define E1000_82542_TDT 0x00438 +#define E1000_82542_TIDV 0x00440 +#define E1000_82542_TBT E1000_TBT +#define E1000_82542_AIT E1000_AIT +#define E1000_82542_VFTA 0x00600 +#define E1000_82542_LEDCTL E1000_LEDCTL +#define E1000_82542_PBA E1000_PBA +#define E1000_82542_PBS E1000_PBS +#define E1000_82542_EEMNGCTL E1000_EEMNGCTL +#define E1000_82542_EEARBC E1000_EEARBC +#define E1000_82542_FLASHT E1000_FLASHT +#define E1000_82542_EEWR E1000_EEWR +#define E1000_82542_FLSWCTL E1000_FLSWCTL +#define E1000_82542_FLSWDATA E1000_FLSWDATA +#define E1000_82542_FLSWCNT E1000_FLSWCNT +#define E1000_82542_FLOP E1000_FLOP +#define E1000_82542_EXTCNF_CTRL E1000_EXTCNF_CTRL +#define E1000_82542_EXTCNF_SIZE E1000_EXTCNF_SIZE +#define E1000_82542_PHY_CTRL E1000_PHY_CTRL +#define E1000_82542_ERT E1000_ERT +#define E1000_82542_RXDCTL E1000_RXDCTL +#define E1000_82542_RXDCTL1 E1000_RXDCTL1 +#define E1000_82542_RADV E1000_RADV +#define E1000_82542_RSRPD E1000_RSRPD +#define E1000_82542_TXDMAC E1000_TXDMAC +#define E1000_82542_KABGTXD E1000_KABGTXD +#define E1000_82542_TDFHS E1000_TDFHS +#define E1000_82542_TDFTS E1000_TDFTS +#define E1000_82542_TDFPC E1000_TDFPC +#define E1000_82542_TXDCTL E1000_TXDCTL +#define E1000_82542_TADV E1000_TADV +#define E1000_82542_TSPMT E1000_TSPMT +#define E1000_82542_CRCERRS E1000_CRCERRS +#define E1000_82542_ALGNERRC E1000_ALGNERRC +#define E1000_82542_SYMERRS E1000_SYMERRS +#define E1000_82542_RXERRC E1000_RXERRC +#define E1000_82542_MPC E1000_MPC +#define E1000_82542_SCC E1000_SCC +#define E1000_82542_ECOL E1000_ECOL +#define E1000_82542_MCC E1000_MCC +#define E1000_82542_LATECOL E1000_LATECOL +#define E1000_82542_COLC E1000_COLC +#define E1000_82542_DC E1000_DC +#define E1000_82542_TNCRS E1000_TNCRS +#define E1000_82542_SEC E1000_SEC +#define E1000_82542_CEXTERR E1000_CEXTERR +#define E1000_82542_RLEC E1000_RLEC +#define E1000_82542_XONRXC E1000_XONRXC +#define E1000_82542_XONTXC E1000_XONTXC +#define E1000_82542_XOFFRXC E1000_XOFFRXC +#define E1000_82542_XOFFTXC E1000_XOFFTXC +#define E1000_82542_FCRUC E1000_FCRUC +#define E1000_82542_PRC64 E1000_PRC64 +#define E1000_82542_PRC127 E1000_PRC127 +#define E1000_82542_PRC255 E1000_PRC255 +#define E1000_82542_PRC511 E1000_PRC511 +#define E1000_82542_PRC1023 E1000_PRC1023 +#define E1000_82542_PRC1522 E1000_PRC1522 +#define E1000_82542_GPRC E1000_GPRC +#define E1000_82542_BPRC E1000_BPRC +#define E1000_82542_MPRC E1000_MPRC +#define E1000_82542_GPTC E1000_GPTC +#define E1000_82542_GORCL E1000_GORCL +#define E1000_82542_GORCH E1000_GORCH +#define E1000_82542_GOTCL E1000_GOTCL +#define E1000_82542_GOTCH E1000_GOTCH +#define E1000_82542_RNBC E1000_RNBC +#define E1000_82542_RUC E1000_RUC +#define E1000_82542_RFC E1000_RFC +#define E1000_82542_ROC E1000_ROC +#define E1000_82542_RJC E1000_RJC +#define E1000_82542_MGTPRC E1000_MGTPRC +#define E1000_82542_MGTPDC E1000_MGTPDC +#define E1000_82542_MGTPTC E1000_MGTPTC +#define E1000_82542_TORL E1000_TORL +#define E1000_82542_TORH E1000_TORH +#define E1000_82542_TOTL E1000_TOTL +#define E1000_82542_TOTH E1000_TOTH +#define E1000_82542_TPR E1000_TPR +#define E1000_82542_TPT E1000_TPT +#define E1000_82542_PTC64 E1000_PTC64 +#define E1000_82542_PTC127 E1000_PTC127 +#define E1000_82542_PTC255 E1000_PTC255 +#define E1000_82542_PTC511 E1000_PTC511 +#define E1000_82542_PTC1023 E1000_PTC1023 +#define E1000_82542_PTC1522 E1000_PTC1522 +#define E1000_82542_MPTC E1000_MPTC +#define E1000_82542_BPTC E1000_BPTC +#define E1000_82542_TSCTC E1000_TSCTC +#define E1000_82542_TSCTFC E1000_TSCTFC +#define E1000_82542_RXCSUM E1000_RXCSUM +#define E1000_82542_WUC E1000_WUC +#define E1000_82542_WUFC E1000_WUFC +#define E1000_82542_WUS E1000_WUS +#define E1000_82542_MANC E1000_MANC +#define E1000_82542_IPAV E1000_IPAV +#define E1000_82542_IP4AT E1000_IP4AT +#define E1000_82542_IP6AT E1000_IP6AT +#define E1000_82542_WUPL E1000_WUPL +#define E1000_82542_WUPM E1000_WUPM +#define E1000_82542_FFLT E1000_FFLT +#define E1000_82542_TDFH 0x08010 +#define E1000_82542_TDFT 0x08018 +#define E1000_82542_FFMT E1000_FFMT +#define E1000_82542_FFVT E1000_FFVT +#define E1000_82542_HOST_IF E1000_HOST_IF +#define E1000_82542_IAM E1000_IAM +#define E1000_82542_EEMNGCTL E1000_EEMNGCTL +#define E1000_82542_PSRCTL E1000_PSRCTL +#define E1000_82542_RAID E1000_RAID +#define E1000_82542_TARC0 E1000_TARC0 +#define E1000_82542_TDBAL1 E1000_TDBAL1 +#define E1000_82542_TDBAH1 E1000_TDBAH1 +#define E1000_82542_TDLEN1 E1000_TDLEN1 +#define E1000_82542_TDH1 E1000_TDH1 +#define E1000_82542_TDT1 E1000_TDT1 +#define E1000_82542_TXDCTL1 E1000_TXDCTL1 +#define E1000_82542_TARC1 E1000_TARC1 +#define E1000_82542_RFCTL E1000_RFCTL +#define E1000_82542_GCR E1000_GCR +#define E1000_82542_GSCL_1 E1000_GSCL_1 +#define E1000_82542_GSCL_2 E1000_GSCL_2 +#define E1000_82542_GSCL_3 E1000_GSCL_3 +#define E1000_82542_GSCL_4 E1000_GSCL_4 +#define E1000_82542_FACTPS E1000_FACTPS +#define E1000_82542_SWSM E1000_SWSM +#define E1000_82542_FWSM E1000_FWSM +#define E1000_82542_FFLT_DBG E1000_FFLT_DBG +#define E1000_82542_IAC E1000_IAC +#define E1000_82542_ICRXPTC E1000_ICRXPTC +#define E1000_82542_ICRXATC E1000_ICRXATC +#define E1000_82542_ICTXPTC E1000_ICTXPTC +#define E1000_82542_ICTXATC E1000_ICTXATC +#define E1000_82542_ICTXQEC E1000_ICTXQEC +#define E1000_82542_ICTXQMTC E1000_ICTXQMTC +#define E1000_82542_ICRXDMTC E1000_ICRXDMTC +#define E1000_82542_ICRXOC E1000_ICRXOC +#define E1000_82542_HICR E1000_HICR + +#define E1000_82542_CPUVEC E1000_CPUVEC +#define E1000_82542_MRQC E1000_MRQC +#define E1000_82542_RETA E1000_RETA +#define E1000_82542_RSSRK E1000_RSSRK +#define E1000_82542_RSSIM E1000_RSSIM +#define E1000_82542_RSSIR E1000_RSSIR +#define E1000_82542_KUMCTRLSTA E1000_KUMCTRLSTA +#define E1000_82542_SW_FW_SYNC E1000_SW_FW_SYNC + +/* Statistics counters collected by the MAC */ +struct e1000_hw_stats { + u64 crcerrs; + u64 algnerrc; + u64 symerrs; + u64 rxerrc; + u64 txerrc; + u64 mpc; + u64 scc; + u64 ecol; + u64 mcc; + u64 latecol; + u64 colc; + u64 dc; + u64 tncrs; + u64 sec; + u64 cexterr; + u64 rlec; + u64 xonrxc; + u64 xontxc; + u64 xoffrxc; + u64 xofftxc; + u64 fcruc; + u64 prc64; + u64 prc127; + u64 prc255; + u64 prc511; + u64 prc1023; + u64 prc1522; + u64 gprc; + u64 bprc; + u64 mprc; + u64 gptc; + u64 gorcl; + u64 gorch; + u64 gotcl; + u64 gotch; + u64 rnbc; + u64 ruc; + u64 rfc; + u64 roc; + u64 rlerrc; + u64 rjc; + u64 mgprc; + u64 mgpdc; + u64 mgptc; + u64 torl; + u64 torh; + u64 totl; + u64 toth; + u64 tpr; + u64 tpt; + u64 ptc64; + u64 ptc127; + u64 ptc255; + u64 ptc511; + u64 ptc1023; + u64 ptc1522; + u64 mptc; + u64 bptc; + u64 tsctc; + u64 tsctfc; + u64 iac; + u64 icrxptc; + u64 icrxatc; + u64 ictxptc; + u64 ictxatc; + u64 ictxqec; + u64 ictxqmtc; + u64 icrxdmtc; + u64 icrxoc; +}; + +/* Structure containing variables used by the shared code (e1000_hw.c) */ +struct e1000_hw { + u8 __iomem *hw_addr; + u8 __iomem *flash_address; + e1000_mac_type mac_type; + e1000_phy_type phy_type; + u32 phy_init_script; + e1000_media_type media_type; + void *back; + struct e1000_shadow_ram *eeprom_shadow_ram; + u32 flash_bank_size; + u32 flash_base_addr; + e1000_fc_type fc; + e1000_bus_speed bus_speed; + e1000_bus_width bus_width; + e1000_bus_type bus_type; + struct e1000_eeprom_info eeprom; + e1000_ms_type master_slave; + e1000_ms_type original_master_slave; + e1000_ffe_config ffe_config_state; + u32 asf_firmware_present; + u32 eeprom_semaphore_present; + unsigned long io_base; + u32 phy_id; + u32 phy_revision; + u32 phy_addr; + u32 original_fc; + u32 txcw; + u32 autoneg_failed; + u32 max_frame_size; + u32 min_frame_size; + u32 mc_filter_type; + u32 num_mc_addrs; + u32 collision_delta; + u32 tx_packet_delta; + u32 ledctl_default; + u32 ledctl_mode1; + u32 ledctl_mode2; + bool tx_pkt_filtering; + struct e1000_host_mng_dhcp_cookie mng_cookie; + u16 phy_spd_default; + u16 autoneg_advertised; + u16 pci_cmd_word; + u16 fc_high_water; + u16 fc_low_water; + u16 fc_pause_time; + u16 current_ifs_val; + u16 ifs_min_val; + u16 ifs_max_val; + u16 ifs_step_size; + u16 ifs_ratio; + u16 device_id; + u16 vendor_id; + u16 subsystem_id; + u16 subsystem_vendor_id; + u8 revision_id; + u8 autoneg; + u8 mdix; + u8 forced_speed_duplex; + u8 wait_autoneg_complete; + u8 dma_fairness; + u8 mac_addr[NODE_ADDRESS_SIZE]; + u8 perm_mac_addr[NODE_ADDRESS_SIZE]; + bool disable_polarity_correction; + bool speed_downgraded; + e1000_smart_speed smart_speed; + e1000_dsp_config dsp_config_state; + bool get_link_status; + bool serdes_has_link; + bool tbi_compatibility_en; + bool tbi_compatibility_on; + bool laa_is_present; + bool phy_reset_disable; + bool initialize_hw_bits_disable; + bool fc_send_xon; + bool fc_strict_ieee; + bool report_tx_early; + bool adaptive_ifs; + bool ifs_params_forced; + bool in_ifs_mode; + bool mng_reg_access_disabled; + bool leave_av_bit_off; + bool bad_tx_carr_stats_fd; + bool has_smbus; +}; + +#define E1000_EEPROM_SWDPIN0 0x0001 /* SWDPIN 0 EEPROM Value */ +#define E1000_EEPROM_LED_LOGIC 0x0020 /* Led Logic Word */ +#define E1000_EEPROM_RW_REG_DATA 16 /* Offset to data in EEPROM read/write registers */ +#define E1000_EEPROM_RW_REG_DONE 2 /* Offset to READ/WRITE done bit */ +#define E1000_EEPROM_RW_REG_START 1 /* First bit for telling part to start operation */ +#define E1000_EEPROM_RW_ADDR_SHIFT 2 /* Shift to the address bits */ +#define E1000_EEPROM_POLL_WRITE 1 /* Flag for polling for write complete */ +#define E1000_EEPROM_POLL_READ 0 /* Flag for polling for read complete */ +/* Register Bit Masks */ +/* Device Control */ +#define E1000_CTRL_FD 0x00000001 /* Full duplex.0=half; 1=full */ +#define E1000_CTRL_BEM 0x00000002 /* Endian Mode.0=little,1=big */ +#define E1000_CTRL_PRIOR 0x00000004 /* Priority on PCI. 0=rx,1=fair */ +#define E1000_CTRL_GIO_MASTER_DISABLE 0x00000004 /*Blocks new Master requests */ +#define E1000_CTRL_LRST 0x00000008 /* Link reset. 0=normal,1=reset */ +#define E1000_CTRL_TME 0x00000010 /* Test mode. 0=normal,1=test */ +#define E1000_CTRL_SLE 0x00000020 /* Serial Link on 0=dis,1=en */ +#define E1000_CTRL_ASDE 0x00000020 /* Auto-speed detect enable */ +#define E1000_CTRL_SLU 0x00000040 /* Set link up (Force Link) */ +#define E1000_CTRL_ILOS 0x00000080 /* Invert Loss-Of Signal */ +#define E1000_CTRL_SPD_SEL 0x00000300 /* Speed Select Mask */ +#define E1000_CTRL_SPD_10 0x00000000 /* Force 10Mb */ +#define E1000_CTRL_SPD_100 0x00000100 /* Force 100Mb */ +#define E1000_CTRL_SPD_1000 0x00000200 /* Force 1Gb */ +#define E1000_CTRL_BEM32 0x00000400 /* Big Endian 32 mode */ +#define E1000_CTRL_FRCSPD 0x00000800 /* Force Speed */ +#define E1000_CTRL_FRCDPX 0x00001000 /* Force Duplex */ +#define E1000_CTRL_D_UD_EN 0x00002000 /* Dock/Undock enable */ +#define E1000_CTRL_D_UD_POLARITY 0x00004000 /* Defined polarity of Dock/Undock indication in SDP[0] */ +#define E1000_CTRL_FORCE_PHY_RESET 0x00008000 /* Reset both PHY ports, through PHYRST_N pin */ +#define E1000_CTRL_EXT_LINK_EN 0x00010000 /* enable link status from external LINK_0 and LINK_1 pins */ +#define E1000_CTRL_SWDPIN0 0x00040000 /* SWDPIN 0 value */ +#define E1000_CTRL_SWDPIN1 0x00080000 /* SWDPIN 1 value */ +#define E1000_CTRL_SWDPIN2 0x00100000 /* SWDPIN 2 value */ +#define E1000_CTRL_SWDPIN3 0x00200000 /* SWDPIN 3 value */ +#define E1000_CTRL_SWDPIO0 0x00400000 /* SWDPIN 0 Input or output */ +#define E1000_CTRL_SWDPIO1 0x00800000 /* SWDPIN 1 input or output */ +#define E1000_CTRL_SWDPIO2 0x01000000 /* SWDPIN 2 input or output */ +#define E1000_CTRL_SWDPIO3 0x02000000 /* SWDPIN 3 input or output */ +#define E1000_CTRL_RST 0x04000000 /* Global reset */ +#define E1000_CTRL_RFCE 0x08000000 /* Receive Flow Control enable */ +#define E1000_CTRL_TFCE 0x10000000 /* Transmit flow control enable */ +#define E1000_CTRL_RTE 0x20000000 /* Routing tag enable */ +#define E1000_CTRL_VME 0x40000000 /* IEEE VLAN mode enable */ +#define E1000_CTRL_PHY_RST 0x80000000 /* PHY Reset */ +#define E1000_CTRL_SW2FW_INT 0x02000000 /* Initiate an interrupt to manageability engine */ + +/* Device Status */ +#define E1000_STATUS_FD 0x00000001 /* Full duplex.0=half,1=full */ +#define E1000_STATUS_LU 0x00000002 /* Link up.0=no,1=link */ +#define E1000_STATUS_FUNC_MASK 0x0000000C /* PCI Function Mask */ +#define E1000_STATUS_FUNC_SHIFT 2 +#define E1000_STATUS_FUNC_0 0x00000000 /* Function 0 */ +#define E1000_STATUS_FUNC_1 0x00000004 /* Function 1 */ +#define E1000_STATUS_TXOFF 0x00000010 /* transmission paused */ +#define E1000_STATUS_TBIMODE 0x00000020 /* TBI mode */ +#define E1000_STATUS_SPEED_MASK 0x000000C0 +#define E1000_STATUS_SPEED_10 0x00000000 /* Speed 10Mb/s */ +#define E1000_STATUS_SPEED_100 0x00000040 /* Speed 100Mb/s */ +#define E1000_STATUS_SPEED_1000 0x00000080 /* Speed 1000Mb/s */ +#define E1000_STATUS_LAN_INIT_DONE 0x00000200 /* Lan Init Completion + by EEPROM/Flash */ +#define E1000_STATUS_ASDV 0x00000300 /* Auto speed detect value */ +#define E1000_STATUS_DOCK_CI 0x00000800 /* Change in Dock/Undock state. Clear on write '0'. */ +#define E1000_STATUS_GIO_MASTER_ENABLE 0x00080000 /* Status of Master requests. */ +#define E1000_STATUS_MTXCKOK 0x00000400 /* MTX clock running OK */ +#define E1000_STATUS_PCI66 0x00000800 /* In 66Mhz slot */ +#define E1000_STATUS_BUS64 0x00001000 /* In 64 bit slot */ +#define E1000_STATUS_PCIX_MODE 0x00002000 /* PCI-X mode */ +#define E1000_STATUS_PCIX_SPEED 0x0000C000 /* PCI-X bus speed */ +#define E1000_STATUS_BMC_SKU_0 0x00100000 /* BMC USB redirect disabled */ +#define E1000_STATUS_BMC_SKU_1 0x00200000 /* BMC SRAM disabled */ +#define E1000_STATUS_BMC_SKU_2 0x00400000 /* BMC SDRAM disabled */ +#define E1000_STATUS_BMC_CRYPTO 0x00800000 /* BMC crypto disabled */ +#define E1000_STATUS_BMC_LITE 0x01000000 /* BMC external code execution disabled */ +#define E1000_STATUS_RGMII_ENABLE 0x02000000 /* RGMII disabled */ +#define E1000_STATUS_FUSE_8 0x04000000 +#define E1000_STATUS_FUSE_9 0x08000000 +#define E1000_STATUS_SERDES0_DIS 0x10000000 /* SERDES disabled on port 0 */ +#define E1000_STATUS_SERDES1_DIS 0x20000000 /* SERDES disabled on port 1 */ + +/* Constants used to interpret the masked PCI-X bus speed. */ +#define E1000_STATUS_PCIX_SPEED_66 0x00000000 /* PCI-X bus speed 50-66 MHz */ +#define E1000_STATUS_PCIX_SPEED_100 0x00004000 /* PCI-X bus speed 66-100 MHz */ +#define E1000_STATUS_PCIX_SPEED_133 0x00008000 /* PCI-X bus speed 100-133 MHz */ + +/* EEPROM/Flash Control */ +#define E1000_EECD_SK 0x00000001 /* EEPROM Clock */ +#define E1000_EECD_CS 0x00000002 /* EEPROM Chip Select */ +#define E1000_EECD_DI 0x00000004 /* EEPROM Data In */ +#define E1000_EECD_DO 0x00000008 /* EEPROM Data Out */ +#define E1000_EECD_FWE_MASK 0x00000030 +#define E1000_EECD_FWE_DIS 0x00000010 /* Disable FLASH writes */ +#define E1000_EECD_FWE_EN 0x00000020 /* Enable FLASH writes */ +#define E1000_EECD_FWE_SHIFT 4 +#define E1000_EECD_REQ 0x00000040 /* EEPROM Access Request */ +#define E1000_EECD_GNT 0x00000080 /* EEPROM Access Grant */ +#define E1000_EECD_PRES 0x00000100 /* EEPROM Present */ +#define E1000_EECD_SIZE 0x00000200 /* EEPROM Size (0=64 word 1=256 word) */ +#define E1000_EECD_ADDR_BITS 0x00000400 /* EEPROM Addressing bits based on type + * (0-small, 1-large) */ +#define E1000_EECD_TYPE 0x00002000 /* EEPROM Type (1-SPI, 0-Microwire) */ +#ifndef E1000_EEPROM_GRANT_ATTEMPTS +#define E1000_EEPROM_GRANT_ATTEMPTS 1000 /* EEPROM # attempts to gain grant */ +#endif +#define E1000_EECD_AUTO_RD 0x00000200 /* EEPROM Auto Read done */ +#define E1000_EECD_SIZE_EX_MASK 0x00007800 /* EEprom Size */ +#define E1000_EECD_SIZE_EX_SHIFT 11 +#define E1000_EECD_NVADDS 0x00018000 /* NVM Address Size */ +#define E1000_EECD_SELSHAD 0x00020000 /* Select Shadow RAM */ +#define E1000_EECD_INITSRAM 0x00040000 /* Initialize Shadow RAM */ +#define E1000_EECD_FLUPD 0x00080000 /* Update FLASH */ +#define E1000_EECD_AUPDEN 0x00100000 /* Enable Autonomous FLASH update */ +#define E1000_EECD_SHADV 0x00200000 /* Shadow RAM Data Valid */ +#define E1000_EECD_SEC1VAL 0x00400000 /* Sector One Valid */ +#define E1000_EECD_SECVAL_SHIFT 22 +#define E1000_STM_OPCODE 0xDB00 +#define E1000_HICR_FW_RESET 0xC0 + +#define E1000_SHADOW_RAM_WORDS 2048 +#define E1000_ICH_NVM_SIG_WORD 0x13 +#define E1000_ICH_NVM_SIG_MASK 0xC0 + +/* EEPROM Read */ +#define E1000_EERD_START 0x00000001 /* Start Read */ +#define E1000_EERD_DONE 0x00000010 /* Read Done */ +#define E1000_EERD_ADDR_SHIFT 8 +#define E1000_EERD_ADDR_MASK 0x0000FF00 /* Read Address */ +#define E1000_EERD_DATA_SHIFT 16 +#define E1000_EERD_DATA_MASK 0xFFFF0000 /* Read Data */ + +/* SPI EEPROM Status Register */ +#define EEPROM_STATUS_RDY_SPI 0x01 +#define EEPROM_STATUS_WEN_SPI 0x02 +#define EEPROM_STATUS_BP0_SPI 0x04 +#define EEPROM_STATUS_BP1_SPI 0x08 +#define EEPROM_STATUS_WPEN_SPI 0x80 + +/* Extended Device Control */ +#define E1000_CTRL_EXT_GPI0_EN 0x00000001 /* Maps SDP4 to GPI0 */ +#define E1000_CTRL_EXT_GPI1_EN 0x00000002 /* Maps SDP5 to GPI1 */ +#define E1000_CTRL_EXT_PHYINT_EN E1000_CTRL_EXT_GPI1_EN +#define E1000_CTRL_EXT_GPI2_EN 0x00000004 /* Maps SDP6 to GPI2 */ +#define E1000_CTRL_EXT_GPI3_EN 0x00000008 /* Maps SDP7 to GPI3 */ +#define E1000_CTRL_EXT_SDP4_DATA 0x00000010 /* Value of SW Defineable Pin 4 */ +#define E1000_CTRL_EXT_SDP5_DATA 0x00000020 /* Value of SW Defineable Pin 5 */ +#define E1000_CTRL_EXT_PHY_INT E1000_CTRL_EXT_SDP5_DATA +#define E1000_CTRL_EXT_SDP6_DATA 0x00000040 /* Value of SW Defineable Pin 6 */ +#define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */ +#define E1000_CTRL_EXT_SDP4_DIR 0x00000100 /* Direction of SDP4 0=in 1=out */ +#define E1000_CTRL_EXT_SDP5_DIR 0x00000200 /* Direction of SDP5 0=in 1=out */ +#define E1000_CTRL_EXT_SDP6_DIR 0x00000400 /* Direction of SDP6 0=in 1=out */ +#define E1000_CTRL_EXT_SDP7_DIR 0x00000800 /* Direction of SDP7 0=in 1=out */ +#define E1000_CTRL_EXT_ASDCHK 0x00001000 /* Initiate an ASD sequence */ +#define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */ +#define E1000_CTRL_EXT_IPS 0x00004000 /* Invert Power State */ +#define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */ +#define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */ +#define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000 +#define E1000_CTRL_EXT_LINK_MODE_TBI 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_KMRN 0x00000000 +#define E1000_CTRL_EXT_LINK_MODE_SERDES 0x00C00000 +#define E1000_CTRL_EXT_LINK_MODE_SGMII 0x00800000 +#define E1000_CTRL_EXT_WR_WMARK_MASK 0x03000000 +#define E1000_CTRL_EXT_WR_WMARK_256 0x00000000 +#define E1000_CTRL_EXT_WR_WMARK_320 0x01000000 +#define E1000_CTRL_EXT_WR_WMARK_384 0x02000000 +#define E1000_CTRL_EXT_WR_WMARK_448 0x03000000 +#define E1000_CTRL_EXT_DRV_LOAD 0x10000000 /* Driver loaded bit for FW */ +#define E1000_CTRL_EXT_IAME 0x08000000 /* Interrupt acknowledge Auto-mask */ +#define E1000_CTRL_EXT_INT_TIMER_CLR 0x20000000 /* Clear Interrupt timers after IMS clear */ +#define E1000_CRTL_EXT_PB_PAREN 0x01000000 /* packet buffer parity error detection enabled */ +#define E1000_CTRL_EXT_DF_PAREN 0x02000000 /* descriptor FIFO parity error detection enable */ +#define E1000_CTRL_EXT_GHOST_PAREN 0x40000000 + +/* MDI Control */ +#define E1000_MDIC_DATA_MASK 0x0000FFFF +#define E1000_MDIC_REG_MASK 0x001F0000 +#define E1000_MDIC_REG_SHIFT 16 +#define E1000_MDIC_PHY_MASK 0x03E00000 +#define E1000_MDIC_PHY_SHIFT 21 +#define E1000_MDIC_OP_WRITE 0x04000000 +#define E1000_MDIC_OP_READ 0x08000000 +#define E1000_MDIC_READY 0x10000000 +#define E1000_MDIC_INT_EN 0x20000000 +#define E1000_MDIC_ERROR 0x40000000 + +#define E1000_KUMCTRLSTA_MASK 0x0000FFFF +#define E1000_KUMCTRLSTA_OFFSET 0x001F0000 +#define E1000_KUMCTRLSTA_OFFSET_SHIFT 16 +#define E1000_KUMCTRLSTA_REN 0x00200000 + +#define E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL 0x00000000 +#define E1000_KUMCTRLSTA_OFFSET_CTRL 0x00000001 +#define E1000_KUMCTRLSTA_OFFSET_INB_CTRL 0x00000002 +#define E1000_KUMCTRLSTA_OFFSET_DIAG 0x00000003 +#define E1000_KUMCTRLSTA_OFFSET_TIMEOUTS 0x00000004 +#define E1000_KUMCTRLSTA_OFFSET_INB_PARAM 0x00000009 +#define E1000_KUMCTRLSTA_OFFSET_HD_CTRL 0x00000010 +#define E1000_KUMCTRLSTA_OFFSET_M2P_SERDES 0x0000001E +#define E1000_KUMCTRLSTA_OFFSET_M2P_MODES 0x0000001F + +/* FIFO Control */ +#define E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS 0x00000008 +#define E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS 0x00000800 + +/* In-Band Control */ +#define E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT 0x00000500 +#define E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING 0x00000010 + +/* Half-Duplex Control */ +#define E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT 0x00000004 +#define E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT 0x00000000 + +#define E1000_KUMCTRLSTA_OFFSET_K0S_CTRL 0x0000001E + +#define E1000_KUMCTRLSTA_DIAG_FELPBK 0x2000 +#define E1000_KUMCTRLSTA_DIAG_NELPBK 0x1000 + +#define E1000_KUMCTRLSTA_K0S_100_EN 0x2000 +#define E1000_KUMCTRLSTA_K0S_GBE_EN 0x1000 +#define E1000_KUMCTRLSTA_K0S_ENTRY_LATENCY_MASK 0x0003 + +#define E1000_KABGTXD_BGSQLBIAS 0x00050000 + +#define E1000_PHY_CTRL_SPD_EN 0x00000001 +#define E1000_PHY_CTRL_D0A_LPLU 0x00000002 +#define E1000_PHY_CTRL_NOND0A_LPLU 0x00000004 +#define E1000_PHY_CTRL_NOND0A_GBE_DISABLE 0x00000008 +#define E1000_PHY_CTRL_GBE_DISABLE 0x00000040 +#define E1000_PHY_CTRL_B2B_EN 0x00000080 + +/* LED Control */ +#define E1000_LEDCTL_LED0_MODE_MASK 0x0000000F +#define E1000_LEDCTL_LED0_MODE_SHIFT 0 +#define E1000_LEDCTL_LED0_BLINK_RATE 0x0000020 +#define E1000_LEDCTL_LED0_IVRT 0x00000040 +#define E1000_LEDCTL_LED0_BLINK 0x00000080 +#define E1000_LEDCTL_LED1_MODE_MASK 0x00000F00 +#define E1000_LEDCTL_LED1_MODE_SHIFT 8 +#define E1000_LEDCTL_LED1_BLINK_RATE 0x0002000 +#define E1000_LEDCTL_LED1_IVRT 0x00004000 +#define E1000_LEDCTL_LED1_BLINK 0x00008000 +#define E1000_LEDCTL_LED2_MODE_MASK 0x000F0000 +#define E1000_LEDCTL_LED2_MODE_SHIFT 16 +#define E1000_LEDCTL_LED2_BLINK_RATE 0x00200000 +#define E1000_LEDCTL_LED2_IVRT 0x00400000 +#define E1000_LEDCTL_LED2_BLINK 0x00800000 +#define E1000_LEDCTL_LED3_MODE_MASK 0x0F000000 +#define E1000_LEDCTL_LED3_MODE_SHIFT 24 +#define E1000_LEDCTL_LED3_BLINK_RATE 0x20000000 +#define E1000_LEDCTL_LED3_IVRT 0x40000000 +#define E1000_LEDCTL_LED3_BLINK 0x80000000 + +#define E1000_LEDCTL_MODE_LINK_10_1000 0x0 +#define E1000_LEDCTL_MODE_LINK_100_1000 0x1 +#define E1000_LEDCTL_MODE_LINK_UP 0x2 +#define E1000_LEDCTL_MODE_ACTIVITY 0x3 +#define E1000_LEDCTL_MODE_LINK_ACTIVITY 0x4 +#define E1000_LEDCTL_MODE_LINK_10 0x5 +#define E1000_LEDCTL_MODE_LINK_100 0x6 +#define E1000_LEDCTL_MODE_LINK_1000 0x7 +#define E1000_LEDCTL_MODE_PCIX_MODE 0x8 +#define E1000_LEDCTL_MODE_FULL_DUPLEX 0x9 +#define E1000_LEDCTL_MODE_COLLISION 0xA +#define E1000_LEDCTL_MODE_BUS_SPEED 0xB +#define E1000_LEDCTL_MODE_BUS_SIZE 0xC +#define E1000_LEDCTL_MODE_PAUSED 0xD +#define E1000_LEDCTL_MODE_LED_ON 0xE +#define E1000_LEDCTL_MODE_LED_OFF 0xF + +/* Receive Address */ +#define E1000_RAH_AV 0x80000000 /* Receive descriptor valid */ + +/* Interrupt Cause Read */ +#define E1000_ICR_TXDW 0x00000001 /* Transmit desc written back */ +#define E1000_ICR_TXQE 0x00000002 /* Transmit Queue empty */ +#define E1000_ICR_LSC 0x00000004 /* Link Status Change */ +#define E1000_ICR_RXSEQ 0x00000008 /* rx sequence error */ +#define E1000_ICR_RXDMT0 0x00000010 /* rx desc min. threshold (0) */ +#define E1000_ICR_RXO 0x00000040 /* rx overrun */ +#define E1000_ICR_RXT0 0x00000080 /* rx timer intr (ring 0) */ +#define E1000_ICR_MDAC 0x00000200 /* MDIO access complete */ +#define E1000_ICR_RXCFG 0x00000400 /* RX /c/ ordered set */ +#define E1000_ICR_GPI_EN0 0x00000800 /* GP Int 0 */ +#define E1000_ICR_GPI_EN1 0x00001000 /* GP Int 1 */ +#define E1000_ICR_GPI_EN2 0x00002000 /* GP Int 2 */ +#define E1000_ICR_GPI_EN3 0x00004000 /* GP Int 3 */ +#define E1000_ICR_TXD_LOW 0x00008000 +#define E1000_ICR_SRPD 0x00010000 +#define E1000_ICR_ACK 0x00020000 /* Receive Ack frame */ +#define E1000_ICR_MNG 0x00040000 /* Manageability event */ +#define E1000_ICR_DOCK 0x00080000 /* Dock/Undock */ +#define E1000_ICR_INT_ASSERTED 0x80000000 /* If this bit asserted, the driver should claim the interrupt */ +#define E1000_ICR_RXD_FIFO_PAR0 0x00100000 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_ICR_TXD_FIFO_PAR0 0x00200000 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_ICR_HOST_ARB_PAR 0x00400000 /* host arb read buffer parity error */ +#define E1000_ICR_PB_PAR 0x00800000 /* packet buffer parity error */ +#define E1000_ICR_RXD_FIFO_PAR1 0x01000000 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_ICR_TXD_FIFO_PAR1 0x02000000 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_ICR_ALL_PARITY 0x03F00000 /* all parity error bits */ +#define E1000_ICR_DSW 0x00000020 /* FW changed the status of DISSW bit in the FWSM */ +#define E1000_ICR_PHYINT 0x00001000 /* LAN connected device generates an interrupt */ +#define E1000_ICR_EPRST 0x00100000 /* ME hardware reset occurs */ + +/* Interrupt Cause Set */ +#define E1000_ICS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_ICS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_ICS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_ICS_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_ICS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_ICS_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_ICS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_ICS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_ICS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_ICS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_ICS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_ICS_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_ICS_SRPD E1000_ICR_SRPD +#define E1000_ICS_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_ICS_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_ICS_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_ICS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_ICS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_ICS_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_ICS_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_ICS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_ICS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_ICS_DSW E1000_ICR_DSW +#define E1000_ICS_PHYINT E1000_ICR_PHYINT +#define E1000_ICS_EPRST E1000_ICR_EPRST + +/* Interrupt Mask Set */ +#define E1000_IMS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_IMS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_IMS_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_IMS_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_IMS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMS_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_IMS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_IMS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_IMS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_IMS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_IMS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_IMS_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_IMS_SRPD E1000_ICR_SRPD +#define E1000_IMS_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_IMS_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_IMS_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_IMS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_IMS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_IMS_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_IMS_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_IMS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_IMS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_IMS_DSW E1000_ICR_DSW +#define E1000_IMS_PHYINT E1000_ICR_PHYINT +#define E1000_IMS_EPRST E1000_ICR_EPRST + +/* Interrupt Mask Clear */ +#define E1000_IMC_TXDW E1000_ICR_TXDW /* Transmit desc written back */ +#define E1000_IMC_TXQE E1000_ICR_TXQE /* Transmit Queue empty */ +#define E1000_IMC_LSC E1000_ICR_LSC /* Link Status Change */ +#define E1000_IMC_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ +#define E1000_IMC_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_IMC_RXO E1000_ICR_RXO /* rx overrun */ +#define E1000_IMC_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMC_MDAC E1000_ICR_MDAC /* MDIO access complete */ +#define E1000_IMC_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */ +#define E1000_IMC_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */ +#define E1000_IMC_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */ +#define E1000_IMC_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */ +#define E1000_IMC_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */ +#define E1000_IMC_TXD_LOW E1000_ICR_TXD_LOW +#define E1000_IMC_SRPD E1000_ICR_SRPD +#define E1000_IMC_ACK E1000_ICR_ACK /* Receive Ack frame */ +#define E1000_IMC_MNG E1000_ICR_MNG /* Manageability event */ +#define E1000_IMC_DOCK E1000_ICR_DOCK /* Dock/Undock */ +#define E1000_IMC_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */ +#define E1000_IMC_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */ +#define E1000_IMC_HOST_ARB_PAR E1000_ICR_HOST_ARB_PAR /* host arb read buffer parity error */ +#define E1000_IMC_PB_PAR E1000_ICR_PB_PAR /* packet buffer parity error */ +#define E1000_IMC_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */ +#define E1000_IMC_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */ +#define E1000_IMC_DSW E1000_ICR_DSW +#define E1000_IMC_PHYINT E1000_ICR_PHYINT +#define E1000_IMC_EPRST E1000_ICR_EPRST + +/* Receive Control */ +#define E1000_RCTL_RST 0x00000001 /* Software reset */ +#define E1000_RCTL_EN 0x00000002 /* enable */ +#define E1000_RCTL_SBP 0x00000004 /* store bad packet */ +#define E1000_RCTL_UPE 0x00000008 /* unicast promiscuous enable */ +#define E1000_RCTL_MPE 0x00000010 /* multicast promiscuous enab */ +#define E1000_RCTL_LPE 0x00000020 /* long packet enable */ +#define E1000_RCTL_LBM_NO 0x00000000 /* no loopback mode */ +#define E1000_RCTL_LBM_MAC 0x00000040 /* MAC loopback mode */ +#define E1000_RCTL_LBM_SLP 0x00000080 /* serial link loopback mode */ +#define E1000_RCTL_LBM_TCVR 0x000000C0 /* tcvr loopback mode */ +#define E1000_RCTL_DTYP_MASK 0x00000C00 /* Descriptor type mask */ +#define E1000_RCTL_DTYP_PS 0x00000400 /* Packet Split descriptor */ +#define E1000_RCTL_RDMTS_HALF 0x00000000 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_QUAT 0x00000100 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_EIGTH 0x00000200 /* rx desc min threshold size */ +#define E1000_RCTL_MO_SHIFT 12 /* multicast offset shift */ +#define E1000_RCTL_MO_0 0x00000000 /* multicast offset 11:0 */ +#define E1000_RCTL_MO_1 0x00001000 /* multicast offset 12:1 */ +#define E1000_RCTL_MO_2 0x00002000 /* multicast offset 13:2 */ +#define E1000_RCTL_MO_3 0x00003000 /* multicast offset 15:4 */ +#define E1000_RCTL_MDR 0x00004000 /* multicast desc ring 0 */ +#define E1000_RCTL_BAM 0x00008000 /* broadcast enable */ +/* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */ +#define E1000_RCTL_SZ_2048 0x00000000 /* rx buffer size 2048 */ +#define E1000_RCTL_SZ_1024 0x00010000 /* rx buffer size 1024 */ +#define E1000_RCTL_SZ_512 0x00020000 /* rx buffer size 512 */ +#define E1000_RCTL_SZ_256 0x00030000 /* rx buffer size 256 */ +/* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */ +#define E1000_RCTL_SZ_16384 0x00010000 /* rx buffer size 16384 */ +#define E1000_RCTL_SZ_8192 0x00020000 /* rx buffer size 8192 */ +#define E1000_RCTL_SZ_4096 0x00030000 /* rx buffer size 4096 */ +#define E1000_RCTL_VFE 0x00040000 /* vlan filter enable */ +#define E1000_RCTL_CFIEN 0x00080000 /* canonical form enable */ +#define E1000_RCTL_CFI 0x00100000 /* canonical form indicator */ +#define E1000_RCTL_DPF 0x00400000 /* discard pause frames */ +#define E1000_RCTL_PMCF 0x00800000 /* pass MAC control frames */ +#define E1000_RCTL_BSEX 0x02000000 /* Buffer size extension */ +#define E1000_RCTL_SECRC 0x04000000 /* Strip Ethernet CRC */ +#define E1000_RCTL_FLXBUF_MASK 0x78000000 /* Flexible buffer size */ +#define E1000_RCTL_FLXBUF_SHIFT 27 /* Flexible buffer shift */ + +/* Use byte values for the following shift parameters + * Usage: + * psrctl |= (((ROUNDUP(value0, 128) >> E1000_PSRCTL_BSIZE0_SHIFT) & + * E1000_PSRCTL_BSIZE0_MASK) | + * ((ROUNDUP(value1, 1024) >> E1000_PSRCTL_BSIZE1_SHIFT) & + * E1000_PSRCTL_BSIZE1_MASK) | + * ((ROUNDUP(value2, 1024) << E1000_PSRCTL_BSIZE2_SHIFT) & + * E1000_PSRCTL_BSIZE2_MASK) | + * ((ROUNDUP(value3, 1024) << E1000_PSRCTL_BSIZE3_SHIFT) |; + * E1000_PSRCTL_BSIZE3_MASK)) + * where value0 = [128..16256], default=256 + * value1 = [1024..64512], default=4096 + * value2 = [0..64512], default=4096 + * value3 = [0..64512], default=0 + */ + +#define E1000_PSRCTL_BSIZE0_MASK 0x0000007F +#define E1000_PSRCTL_BSIZE1_MASK 0x00003F00 +#define E1000_PSRCTL_BSIZE2_MASK 0x003F0000 +#define E1000_PSRCTL_BSIZE3_MASK 0x3F000000 + +#define E1000_PSRCTL_BSIZE0_SHIFT 7 /* Shift _right_ 7 */ +#define E1000_PSRCTL_BSIZE1_SHIFT 2 /* Shift _right_ 2 */ +#define E1000_PSRCTL_BSIZE2_SHIFT 6 /* Shift _left_ 6 */ +#define E1000_PSRCTL_BSIZE3_SHIFT 14 /* Shift _left_ 14 */ + +/* SW_W_SYNC definitions */ +#define E1000_SWFW_EEP_SM 0x0001 +#define E1000_SWFW_PHY0_SM 0x0002 +#define E1000_SWFW_PHY1_SM 0x0004 +#define E1000_SWFW_MAC_CSR_SM 0x0008 + +/* Receive Descriptor */ +#define E1000_RDT_DELAY 0x0000ffff /* Delay timer (1=1024us) */ +#define E1000_RDT_FPDB 0x80000000 /* Flush descriptor block */ +#define E1000_RDLEN_LEN 0x0007ff80 /* descriptor length */ +#define E1000_RDH_RDH 0x0000ffff /* receive descriptor head */ +#define E1000_RDT_RDT 0x0000ffff /* receive descriptor tail */ + +/* Flow Control */ +#define E1000_FCRTH_RTH 0x0000FFF8 /* Mask Bits[15:3] for RTH */ +#define E1000_FCRTH_XFCE 0x80000000 /* External Flow Control Enable */ +#define E1000_FCRTL_RTL 0x0000FFF8 /* Mask Bits[15:3] for RTL */ +#define E1000_FCRTL_XONE 0x80000000 /* Enable XON frame transmission */ + +/* Header split receive */ +#define E1000_RFCTL_ISCSI_DIS 0x00000001 +#define E1000_RFCTL_ISCSI_DWC_MASK 0x0000003E +#define E1000_RFCTL_ISCSI_DWC_SHIFT 1 +#define E1000_RFCTL_NFSW_DIS 0x00000040 +#define E1000_RFCTL_NFSR_DIS 0x00000080 +#define E1000_RFCTL_NFS_VER_MASK 0x00000300 +#define E1000_RFCTL_NFS_VER_SHIFT 8 +#define E1000_RFCTL_IPV6_DIS 0x00000400 +#define E1000_RFCTL_IPV6_XSUM_DIS 0x00000800 +#define E1000_RFCTL_ACK_DIS 0x00001000 +#define E1000_RFCTL_ACKD_DIS 0x00002000 +#define E1000_RFCTL_IPFRSP_DIS 0x00004000 +#define E1000_RFCTL_EXTEN 0x00008000 +#define E1000_RFCTL_IPV6_EX_DIS 0x00010000 +#define E1000_RFCTL_NEW_IPV6_EXT_DIS 0x00020000 + +/* Receive Descriptor Control */ +#define E1000_RXDCTL_PTHRESH 0x0000003F /* RXDCTL Prefetch Threshold */ +#define E1000_RXDCTL_HTHRESH 0x00003F00 /* RXDCTL Host Threshold */ +#define E1000_RXDCTL_WTHRESH 0x003F0000 /* RXDCTL Writeback Threshold */ +#define E1000_RXDCTL_GRAN 0x01000000 /* RXDCTL Granularity */ + +/* Transmit Descriptor Control */ +#define E1000_TXDCTL_PTHRESH 0x0000003F /* TXDCTL Prefetch Threshold */ +#define E1000_TXDCTL_HTHRESH 0x00003F00 /* TXDCTL Host Threshold */ +#define E1000_TXDCTL_WTHRESH 0x003F0000 /* TXDCTL Writeback Threshold */ +#define E1000_TXDCTL_GRAN 0x01000000 /* TXDCTL Granularity */ +#define E1000_TXDCTL_LWTHRESH 0xFE000000 /* TXDCTL Low Threshold */ +#define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000 /* GRAN=1, WTHRESH=1 */ +#define E1000_TXDCTL_COUNT_DESC 0x00400000 /* Enable the counting of desc. + still to be processed. */ +/* Transmit Configuration Word */ +#define E1000_TXCW_FD 0x00000020 /* TXCW full duplex */ +#define E1000_TXCW_HD 0x00000040 /* TXCW half duplex */ +#define E1000_TXCW_PAUSE 0x00000080 /* TXCW sym pause request */ +#define E1000_TXCW_ASM_DIR 0x00000100 /* TXCW astm pause direction */ +#define E1000_TXCW_PAUSE_MASK 0x00000180 /* TXCW pause request mask */ +#define E1000_TXCW_RF 0x00003000 /* TXCW remote fault */ +#define E1000_TXCW_NP 0x00008000 /* TXCW next page */ +#define E1000_TXCW_CW 0x0000ffff /* TxConfigWord mask */ +#define E1000_TXCW_TXC 0x40000000 /* Transmit Config control */ +#define E1000_TXCW_ANE 0x80000000 /* Auto-neg enable */ + +/* Receive Configuration Word */ +#define E1000_RXCW_CW 0x0000ffff /* RxConfigWord mask */ +#define E1000_RXCW_NC 0x04000000 /* Receive config no carrier */ +#define E1000_RXCW_IV 0x08000000 /* Receive config invalid */ +#define E1000_RXCW_CC 0x10000000 /* Receive config change */ +#define E1000_RXCW_C 0x20000000 /* Receive config */ +#define E1000_RXCW_SYNCH 0x40000000 /* Receive config synch */ +#define E1000_RXCW_ANC 0x80000000 /* Auto-neg complete */ + +/* Transmit Control */ +#define E1000_TCTL_RST 0x00000001 /* software reset */ +#define E1000_TCTL_EN 0x00000002 /* enable tx */ +#define E1000_TCTL_BCE 0x00000004 /* busy check enable */ +#define E1000_TCTL_PSP 0x00000008 /* pad short packets */ +#define E1000_TCTL_CT 0x00000ff0 /* collision threshold */ +#define E1000_TCTL_COLD 0x003ff000 /* collision distance */ +#define E1000_TCTL_SWXOFF 0x00400000 /* SW Xoff transmission */ +#define E1000_TCTL_PBE 0x00800000 /* Packet Burst Enable */ +#define E1000_TCTL_RTLC 0x01000000 /* Re-transmit on late collision */ +#define E1000_TCTL_NRTU 0x02000000 /* No Re-transmit on underrun */ +#define E1000_TCTL_MULR 0x10000000 /* Multiple request support */ +/* Extended Transmit Control */ +#define E1000_TCTL_EXT_BST_MASK 0x000003FF /* Backoff Slot Time */ +#define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */ + +/* Receive Checksum Control */ +#define E1000_RXCSUM_PCSS_MASK 0x000000FF /* Packet Checksum Start */ +#define E1000_RXCSUM_IPOFL 0x00000100 /* IPv4 checksum offload */ +#define E1000_RXCSUM_TUOFL 0x00000200 /* TCP / UDP checksum offload */ +#define E1000_RXCSUM_IPV6OFL 0x00000400 /* IPv6 checksum offload */ +#define E1000_RXCSUM_IPPCSE 0x00001000 /* IP payload checksum enable */ +#define E1000_RXCSUM_PCSD 0x00002000 /* packet checksum disabled */ + +/* Multiple Receive Queue Control */ +#define E1000_MRQC_ENABLE_MASK 0x00000003 +#define E1000_MRQC_ENABLE_RSS_2Q 0x00000001 +#define E1000_MRQC_ENABLE_RSS_INT 0x00000004 +#define E1000_MRQC_RSS_FIELD_MASK 0xFFFF0000 +#define E1000_MRQC_RSS_FIELD_IPV4_TCP 0x00010000 +#define E1000_MRQC_RSS_FIELD_IPV4 0x00020000 +#define E1000_MRQC_RSS_FIELD_IPV6_TCP_EX 0x00040000 +#define E1000_MRQC_RSS_FIELD_IPV6_EX 0x00080000 +#define E1000_MRQC_RSS_FIELD_IPV6 0x00100000 +#define E1000_MRQC_RSS_FIELD_IPV6_TCP 0x00200000 + +/* Definitions for power management and wakeup registers */ +/* Wake Up Control */ +#define E1000_WUC_APME 0x00000001 /* APM Enable */ +#define E1000_WUC_PME_EN 0x00000002 /* PME Enable */ +#define E1000_WUC_PME_STATUS 0x00000004 /* PME Status */ +#define E1000_WUC_APMPME 0x00000008 /* Assert PME on APM Wakeup */ +#define E1000_WUC_SPM 0x80000000 /* Enable SPM */ + +/* Wake Up Filter Control */ +#define E1000_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */ +#define E1000_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */ +#define E1000_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */ +#define E1000_WUFC_MC 0x00000008 /* Directed Multicast Wakeup Enable */ +#define E1000_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */ +#define E1000_WUFC_ARP 0x00000020 /* ARP Request Packet Wakeup Enable */ +#define E1000_WUFC_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Enable */ +#define E1000_WUFC_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Enable */ +#define E1000_WUFC_IGNORE_TCO 0x00008000 /* Ignore WakeOn TCO packets */ +#define E1000_WUFC_FLX0 0x00010000 /* Flexible Filter 0 Enable */ +#define E1000_WUFC_FLX1 0x00020000 /* Flexible Filter 1 Enable */ +#define E1000_WUFC_FLX2 0x00040000 /* Flexible Filter 2 Enable */ +#define E1000_WUFC_FLX3 0x00080000 /* Flexible Filter 3 Enable */ +#define E1000_WUFC_ALL_FILTERS 0x000F00FF /* Mask for all wakeup filters */ +#define E1000_WUFC_FLX_OFFSET 16 /* Offset to the Flexible Filters bits */ +#define E1000_WUFC_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */ + +/* Wake Up Status */ +#define E1000_WUS_LNKC 0x00000001 /* Link Status Changed */ +#define E1000_WUS_MAG 0x00000002 /* Magic Packet Received */ +#define E1000_WUS_EX 0x00000004 /* Directed Exact Received */ +#define E1000_WUS_MC 0x00000008 /* Directed Multicast Received */ +#define E1000_WUS_BC 0x00000010 /* Broadcast Received */ +#define E1000_WUS_ARP 0x00000020 /* ARP Request Packet Received */ +#define E1000_WUS_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Received */ +#define E1000_WUS_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Received */ +#define E1000_WUS_FLX0 0x00010000 /* Flexible Filter 0 Match */ +#define E1000_WUS_FLX1 0x00020000 /* Flexible Filter 1 Match */ +#define E1000_WUS_FLX2 0x00040000 /* Flexible Filter 2 Match */ +#define E1000_WUS_FLX3 0x00080000 /* Flexible Filter 3 Match */ +#define E1000_WUS_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */ + +/* Management Control */ +#define E1000_MANC_SMBUS_EN 0x00000001 /* SMBus Enabled - RO */ +#define E1000_MANC_ASF_EN 0x00000002 /* ASF Enabled - RO */ +#define E1000_MANC_R_ON_FORCE 0x00000004 /* Reset on Force TCO - RO */ +#define E1000_MANC_RMCP_EN 0x00000100 /* Enable RCMP 026Fh Filtering */ +#define E1000_MANC_0298_EN 0x00000200 /* Enable RCMP 0298h Filtering */ +#define E1000_MANC_IPV4_EN 0x00000400 /* Enable IPv4 */ +#define E1000_MANC_IPV6_EN 0x00000800 /* Enable IPv6 */ +#define E1000_MANC_SNAP_EN 0x00001000 /* Accept LLC/SNAP */ +#define E1000_MANC_ARP_EN 0x00002000 /* Enable ARP Request Filtering */ +#define E1000_MANC_NEIGHBOR_EN 0x00004000 /* Enable Neighbor Discovery + * Filtering */ +#define E1000_MANC_ARP_RES_EN 0x00008000 /* Enable ARP response Filtering */ +#define E1000_MANC_TCO_RESET 0x00010000 /* TCO Reset Occurred */ +#define E1000_MANC_RCV_TCO_EN 0x00020000 /* Receive TCO Packets Enabled */ +#define E1000_MANC_REPORT_STATUS 0x00040000 /* Status Reporting Enabled */ +#define E1000_MANC_RCV_ALL 0x00080000 /* Receive All Enabled */ +#define E1000_MANC_BLK_PHY_RST_ON_IDE 0x00040000 /* Block phy resets */ +#define E1000_MANC_EN_MAC_ADDR_FILTER 0x00100000 /* Enable MAC address + * filtering */ +#define E1000_MANC_EN_MNG2HOST 0x00200000 /* Enable MNG packets to host + * memory */ +#define E1000_MANC_EN_IP_ADDR_FILTER 0x00400000 /* Enable IP address + * filtering */ +#define E1000_MANC_EN_XSUM_FILTER 0x00800000 /* Enable checksum filtering */ +#define E1000_MANC_BR_EN 0x01000000 /* Enable broadcast filtering */ +#define E1000_MANC_SMB_REQ 0x01000000 /* SMBus Request */ +#define E1000_MANC_SMB_GNT 0x02000000 /* SMBus Grant */ +#define E1000_MANC_SMB_CLK_IN 0x04000000 /* SMBus Clock In */ +#define E1000_MANC_SMB_DATA_IN 0x08000000 /* SMBus Data In */ +#define E1000_MANC_SMB_DATA_OUT 0x10000000 /* SMBus Data Out */ +#define E1000_MANC_SMB_CLK_OUT 0x20000000 /* SMBus Clock Out */ + +#define E1000_MANC_SMB_DATA_OUT_SHIFT 28 /* SMBus Data Out Shift */ +#define E1000_MANC_SMB_CLK_OUT_SHIFT 29 /* SMBus Clock Out Shift */ + +/* SW Semaphore Register */ +#define E1000_SWSM_SMBI 0x00000001 /* Driver Semaphore bit */ +#define E1000_SWSM_SWESMBI 0x00000002 /* FW Semaphore bit */ +#define E1000_SWSM_WMNG 0x00000004 /* Wake MNG Clock */ +#define E1000_SWSM_DRV_LOAD 0x00000008 /* Driver Loaded Bit */ + +/* FW Semaphore Register */ +#define E1000_FWSM_MODE_MASK 0x0000000E /* FW mode */ +#define E1000_FWSM_MODE_SHIFT 1 +#define E1000_FWSM_FW_VALID 0x00008000 /* FW established a valid mode */ + +#define E1000_FWSM_RSPCIPHY 0x00000040 /* Reset PHY on PCI reset */ +#define E1000_FWSM_DISSW 0x10000000 /* FW disable SW Write Access */ +#define E1000_FWSM_SKUSEL_MASK 0x60000000 /* LAN SKU select */ +#define E1000_FWSM_SKUEL_SHIFT 29 +#define E1000_FWSM_SKUSEL_EMB 0x0 /* Embedded SKU */ +#define E1000_FWSM_SKUSEL_CONS 0x1 /* Consumer SKU */ +#define E1000_FWSM_SKUSEL_PERF_100 0x2 /* Perf & Corp 10/100 SKU */ +#define E1000_FWSM_SKUSEL_PERF_GBE 0x3 /* Perf & Copr GbE SKU */ + +/* FFLT Debug Register */ +#define E1000_FFLT_DBG_INVC 0x00100000 /* Invalid /C/ code handling */ + +typedef enum { + e1000_mng_mode_none = 0, + e1000_mng_mode_asf, + e1000_mng_mode_pt, + e1000_mng_mode_ipmi, + e1000_mng_mode_host_interface_only +} e1000_mng_mode; + +/* Host Interface Control Register */ +#define E1000_HICR_EN 0x00000001 /* Enable Bit - RO */ +#define E1000_HICR_C 0x00000002 /* Driver sets this bit when done + * to put command in RAM */ +#define E1000_HICR_SV 0x00000004 /* Status Validity */ +#define E1000_HICR_FWR 0x00000080 /* FW reset. Set by the Host */ + +/* Host Interface Command Interface - Address range 0x8800-0x8EFF */ +#define E1000_HI_MAX_DATA_LENGTH 252 /* Host Interface data length */ +#define E1000_HI_MAX_BLOCK_BYTE_LENGTH 1792 /* Number of bytes in range */ +#define E1000_HI_MAX_BLOCK_DWORD_LENGTH 448 /* Number of dwords in range */ +#define E1000_HI_COMMAND_TIMEOUT 500 /* Time in ms to process HI command */ + +struct e1000_host_command_header { + u8 command_id; + u8 command_length; + u8 command_options; /* I/F bits for command, status for return */ + u8 checksum; +}; +struct e1000_host_command_info { + struct e1000_host_command_header command_header; /* Command Head/Command Result Head has 4 bytes */ + u8 command_data[E1000_HI_MAX_DATA_LENGTH]; /* Command data can length 0..252 */ +}; + +/* Host SMB register #0 */ +#define E1000_HSMC0R_CLKIN 0x00000001 /* SMB Clock in */ +#define E1000_HSMC0R_DATAIN 0x00000002 /* SMB Data in */ +#define E1000_HSMC0R_DATAOUT 0x00000004 /* SMB Data out */ +#define E1000_HSMC0R_CLKOUT 0x00000008 /* SMB Clock out */ + +/* Host SMB register #1 */ +#define E1000_HSMC1R_CLKIN E1000_HSMC0R_CLKIN +#define E1000_HSMC1R_DATAIN E1000_HSMC0R_DATAIN +#define E1000_HSMC1R_DATAOUT E1000_HSMC0R_DATAOUT +#define E1000_HSMC1R_CLKOUT E1000_HSMC0R_CLKOUT + +/* FW Status Register */ +#define E1000_FWSTS_FWS_MASK 0x000000FF /* FW Status */ + +/* Wake Up Packet Length */ +#define E1000_WUPL_LENGTH_MASK 0x0FFF /* Only the lower 12 bits are valid */ + +#define E1000_MDALIGN 4096 + +/* PCI-Ex registers*/ + +/* PCI-Ex Control Register */ +#define E1000_GCR_RXD_NO_SNOOP 0x00000001 +#define E1000_GCR_RXDSCW_NO_SNOOP 0x00000002 +#define E1000_GCR_RXDSCR_NO_SNOOP 0x00000004 +#define E1000_GCR_TXD_NO_SNOOP 0x00000008 +#define E1000_GCR_TXDSCW_NO_SNOOP 0x00000010 +#define E1000_GCR_TXDSCR_NO_SNOOP 0x00000020 + +#define PCI_EX_NO_SNOOP_ALL (E1000_GCR_RXD_NO_SNOOP | \ + E1000_GCR_RXDSCW_NO_SNOOP | \ + E1000_GCR_RXDSCR_NO_SNOOP | \ + E1000_GCR_TXD_NO_SNOOP | \ + E1000_GCR_TXDSCW_NO_SNOOP | \ + E1000_GCR_TXDSCR_NO_SNOOP) + +#define PCI_EX_82566_SNOOP_ALL PCI_EX_NO_SNOOP_ALL + +#define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000 +/* Function Active and Power State to MNG */ +#define E1000_FACTPS_FUNC0_POWER_STATE_MASK 0x00000003 +#define E1000_FACTPS_LAN0_VALID 0x00000004 +#define E1000_FACTPS_FUNC0_AUX_EN 0x00000008 +#define E1000_FACTPS_FUNC1_POWER_STATE_MASK 0x000000C0 +#define E1000_FACTPS_FUNC1_POWER_STATE_SHIFT 6 +#define E1000_FACTPS_LAN1_VALID 0x00000100 +#define E1000_FACTPS_FUNC1_AUX_EN 0x00000200 +#define E1000_FACTPS_FUNC2_POWER_STATE_MASK 0x00003000 +#define E1000_FACTPS_FUNC2_POWER_STATE_SHIFT 12 +#define E1000_FACTPS_IDE_ENABLE 0x00004000 +#define E1000_FACTPS_FUNC2_AUX_EN 0x00008000 +#define E1000_FACTPS_FUNC3_POWER_STATE_MASK 0x000C0000 +#define E1000_FACTPS_FUNC3_POWER_STATE_SHIFT 18 +#define E1000_FACTPS_SP_ENABLE 0x00100000 +#define E1000_FACTPS_FUNC3_AUX_EN 0x00200000 +#define E1000_FACTPS_FUNC4_POWER_STATE_MASK 0x03000000 +#define E1000_FACTPS_FUNC4_POWER_STATE_SHIFT 24 +#define E1000_FACTPS_IPMI_ENABLE 0x04000000 +#define E1000_FACTPS_FUNC4_AUX_EN 0x08000000 +#define E1000_FACTPS_MNGCG 0x20000000 +#define E1000_FACTPS_LAN_FUNC_SEL 0x40000000 +#define E1000_FACTPS_PM_STATE_CHANGED 0x80000000 + +/* PCI-Ex Config Space */ +#define PCI_EX_LINK_STATUS 0x12 +#define PCI_EX_LINK_WIDTH_MASK 0x3F0 +#define PCI_EX_LINK_WIDTH_SHIFT 4 + +/* EEPROM Commands - Microwire */ +#define EEPROM_READ_OPCODE_MICROWIRE 0x6 /* EEPROM read opcode */ +#define EEPROM_WRITE_OPCODE_MICROWIRE 0x5 /* EEPROM write opcode */ +#define EEPROM_ERASE_OPCODE_MICROWIRE 0x7 /* EEPROM erase opcode */ +#define EEPROM_EWEN_OPCODE_MICROWIRE 0x13 /* EEPROM erase/write enable */ +#define EEPROM_EWDS_OPCODE_MICROWIRE 0x10 /* EEPROM erase/write disable */ + +/* EEPROM Commands - SPI */ +#define EEPROM_MAX_RETRY_SPI 5000 /* Max wait of 5ms, for RDY signal */ +#define EEPROM_READ_OPCODE_SPI 0x03 /* EEPROM read opcode */ +#define EEPROM_WRITE_OPCODE_SPI 0x02 /* EEPROM write opcode */ +#define EEPROM_A8_OPCODE_SPI 0x08 /* opcode bit-3 = address bit-8 */ +#define EEPROM_WREN_OPCODE_SPI 0x06 /* EEPROM set Write Enable latch */ +#define EEPROM_WRDI_OPCODE_SPI 0x04 /* EEPROM reset Write Enable latch */ +#define EEPROM_RDSR_OPCODE_SPI 0x05 /* EEPROM read Status register */ +#define EEPROM_WRSR_OPCODE_SPI 0x01 /* EEPROM write Status register */ +#define EEPROM_ERASE4K_OPCODE_SPI 0x20 /* EEPROM ERASE 4KB */ +#define EEPROM_ERASE64K_OPCODE_SPI 0xD8 /* EEPROM ERASE 64KB */ +#define EEPROM_ERASE256_OPCODE_SPI 0xDB /* EEPROM ERASE 256B */ + +/* EEPROM Size definitions */ +#define EEPROM_WORD_SIZE_SHIFT 6 +#define EEPROM_SIZE_SHIFT 10 +#define EEPROM_SIZE_MASK 0x1C00 + +/* EEPROM Word Offsets */ +#define EEPROM_COMPAT 0x0003 +#define EEPROM_ID_LED_SETTINGS 0x0004 +#define EEPROM_VERSION 0x0005 +#define EEPROM_SERDES_AMPLITUDE 0x0006 /* For SERDES output amplitude adjustment. */ +#define EEPROM_PHY_CLASS_WORD 0x0007 +#define EEPROM_INIT_CONTROL1_REG 0x000A +#define EEPROM_INIT_CONTROL2_REG 0x000F +#define EEPROM_SWDEF_PINS_CTRL_PORT_1 0x0010 +#define EEPROM_INIT_CONTROL3_PORT_B 0x0014 +#define EEPROM_INIT_3GIO_3 0x001A +#define EEPROM_SWDEF_PINS_CTRL_PORT_0 0x0020 +#define EEPROM_INIT_CONTROL3_PORT_A 0x0024 +#define EEPROM_CFG 0x0012 +#define EEPROM_FLASH_VERSION 0x0032 +#define EEPROM_CHECKSUM_REG 0x003F + +#define E1000_EEPROM_CFG_DONE 0x00040000 /* MNG config cycle done */ +#define E1000_EEPROM_CFG_DONE_PORT_1 0x00080000 /* ...for second port */ + +/* Word definitions for ID LED Settings */ +#define ID_LED_RESERVED_0000 0x0000 +#define ID_LED_RESERVED_FFFF 0xFFFF +#define ID_LED_DEFAULT ((ID_LED_OFF1_ON2 << 12) | \ + (ID_LED_OFF1_OFF2 << 8) | \ + (ID_LED_DEF1_DEF2 << 4) | \ + (ID_LED_DEF1_DEF2)) +#define ID_LED_DEF1_DEF2 0x1 +#define ID_LED_DEF1_ON2 0x2 +#define ID_LED_DEF1_OFF2 0x3 +#define ID_LED_ON1_DEF2 0x4 +#define ID_LED_ON1_ON2 0x5 +#define ID_LED_ON1_OFF2 0x6 +#define ID_LED_OFF1_DEF2 0x7 +#define ID_LED_OFF1_ON2 0x8 +#define ID_LED_OFF1_OFF2 0x9 + +#define IGP_ACTIVITY_LED_MASK 0xFFFFF0FF +#define IGP_ACTIVITY_LED_ENABLE 0x0300 +#define IGP_LED3_MODE 0x07000000 + +/* Mask bits for SERDES amplitude adjustment in Word 6 of the EEPROM */ +#define EEPROM_SERDES_AMPLITUDE_MASK 0x000F + +/* Mask bit for PHY class in Word 7 of the EEPROM */ +#define EEPROM_PHY_CLASS_A 0x8000 + +/* Mask bits for fields in Word 0x0a of the EEPROM */ +#define EEPROM_WORD0A_ILOS 0x0010 +#define EEPROM_WORD0A_SWDPIO 0x01E0 +#define EEPROM_WORD0A_LRST 0x0200 +#define EEPROM_WORD0A_FD 0x0400 +#define EEPROM_WORD0A_66MHZ 0x0800 + +/* Mask bits for fields in Word 0x0f of the EEPROM */ +#define EEPROM_WORD0F_PAUSE_MASK 0x3000 +#define EEPROM_WORD0F_PAUSE 0x1000 +#define EEPROM_WORD0F_ASM_DIR 0x2000 +#define EEPROM_WORD0F_ANE 0x0800 +#define EEPROM_WORD0F_SWPDIO_EXT 0x00F0 +#define EEPROM_WORD0F_LPLU 0x0001 + +/* Mask bits for fields in Word 0x10/0x20 of the EEPROM */ +#define EEPROM_WORD1020_GIGA_DISABLE 0x0010 +#define EEPROM_WORD1020_GIGA_DISABLE_NON_D0A 0x0008 + +/* Mask bits for fields in Word 0x1a of the EEPROM */ +#define EEPROM_WORD1A_ASPM_MASK 0x000C + +/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */ +#define EEPROM_SUM 0xBABA + +/* EEPROM Map defines (WORD OFFSETS)*/ +#define EEPROM_NODE_ADDRESS_BYTE_0 0 +#define EEPROM_PBA_BYTE_1 8 + +#define EEPROM_RESERVED_WORD 0xFFFF + +/* EEPROM Map Sizes (Byte Counts) */ +#define PBA_SIZE 4 + +/* Collision related configuration parameters */ +#define E1000_COLLISION_THRESHOLD 15 +#define E1000_CT_SHIFT 4 +/* Collision distance is a 0-based value that applies to + * half-duplex-capable hardware only. */ +#define E1000_COLLISION_DISTANCE 63 +#define E1000_COLLISION_DISTANCE_82542 64 +#define E1000_FDX_COLLISION_DISTANCE E1000_COLLISION_DISTANCE +#define E1000_HDX_COLLISION_DISTANCE E1000_COLLISION_DISTANCE +#define E1000_COLD_SHIFT 12 + +/* Number of Transmit and Receive Descriptors must be a multiple of 8 */ +#define REQ_TX_DESCRIPTOR_MULTIPLE 8 +#define REQ_RX_DESCRIPTOR_MULTIPLE 8 + +/* Default values for the transmit IPG register */ +#define DEFAULT_82542_TIPG_IPGT 10 +#define DEFAULT_82543_TIPG_IPGT_FIBER 9 +#define DEFAULT_82543_TIPG_IPGT_COPPER 8 + +#define E1000_TIPG_IPGT_MASK 0x000003FF +#define E1000_TIPG_IPGR1_MASK 0x000FFC00 +#define E1000_TIPG_IPGR2_MASK 0x3FF00000 + +#define DEFAULT_82542_TIPG_IPGR1 2 +#define DEFAULT_82543_TIPG_IPGR1 8 +#define E1000_TIPG_IPGR1_SHIFT 10 + +#define DEFAULT_82542_TIPG_IPGR2 10 +#define DEFAULT_82543_TIPG_IPGR2 6 +#define E1000_TIPG_IPGR2_SHIFT 20 + +#define E1000_TXDMAC_DPP 0x00000001 + +/* Adaptive IFS defines */ +#define TX_THRESHOLD_START 8 +#define TX_THRESHOLD_INCREMENT 10 +#define TX_THRESHOLD_DECREMENT 1 +#define TX_THRESHOLD_STOP 190 +#define TX_THRESHOLD_DISABLE 0 +#define TX_THRESHOLD_TIMER_MS 10000 +#define MIN_NUM_XMITS 1000 +#define IFS_MAX 80 +#define IFS_STEP 10 +#define IFS_MIN 40 +#define IFS_RATIO 4 + +/* Extended Configuration Control and Size */ +#define E1000_EXTCNF_CTRL_PCIE_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_PHY_WRITE_ENABLE 0x00000002 +#define E1000_EXTCNF_CTRL_D_UD_ENABLE 0x00000004 +#define E1000_EXTCNF_CTRL_D_UD_LATENCY 0x00000008 +#define E1000_EXTCNF_CTRL_D_UD_OWNER 0x00000010 +#define E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP 0x00000020 +#define E1000_EXTCNF_CTRL_MDIO_HW_OWNERSHIP 0x00000040 +#define E1000_EXTCNF_CTRL_EXT_CNF_POINTER 0x0FFF0000 + +#define E1000_EXTCNF_SIZE_EXT_PHY_LENGTH 0x000000FF +#define E1000_EXTCNF_SIZE_EXT_DOCK_LENGTH 0x0000FF00 +#define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH 0x00FF0000 +#define E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE 0x00000001 +#define E1000_EXTCNF_CTRL_SWFLAG 0x00000020 + +/* PBA constants */ +#define E1000_PBA_8K 0x0008 /* 8KB, default Rx allocation */ +#define E1000_PBA_12K 0x000C /* 12KB, default Rx allocation */ +#define E1000_PBA_16K 0x0010 /* 16KB, default TX allocation */ +#define E1000_PBA_20K 0x0014 +#define E1000_PBA_22K 0x0016 +#define E1000_PBA_24K 0x0018 +#define E1000_PBA_30K 0x001E +#define E1000_PBA_32K 0x0020 +#define E1000_PBA_34K 0x0022 +#define E1000_PBA_38K 0x0026 +#define E1000_PBA_40K 0x0028 +#define E1000_PBA_48K 0x0030 /* 48KB, default RX allocation */ + +#define E1000_PBS_16K E1000_PBA_16K + +/* Flow Control Constants */ +#define FLOW_CONTROL_ADDRESS_LOW 0x00C28001 +#define FLOW_CONTROL_ADDRESS_HIGH 0x00000100 +#define FLOW_CONTROL_TYPE 0x8808 + +/* The historical defaults for the flow control values are given below. */ +#define FC_DEFAULT_HI_THRESH (0x8000) /* 32KB */ +#define FC_DEFAULT_LO_THRESH (0x4000) /* 16KB */ +#define FC_DEFAULT_TX_TIMER (0x100) /* ~130 us */ + +/* PCIX Config space */ +#define PCIX_COMMAND_REGISTER 0xE6 +#define PCIX_STATUS_REGISTER_LO 0xE8 +#define PCIX_STATUS_REGISTER_HI 0xEA + +#define PCIX_COMMAND_MMRBC_MASK 0x000C +#define PCIX_COMMAND_MMRBC_SHIFT 0x2 +#define PCIX_STATUS_HI_MMRBC_MASK 0x0060 +#define PCIX_STATUS_HI_MMRBC_SHIFT 0x5 +#define PCIX_STATUS_HI_MMRBC_4K 0x3 +#define PCIX_STATUS_HI_MMRBC_2K 0x2 + +/* Number of bits required to shift right the "pause" bits from the + * EEPROM (bits 13:12) to the "pause" (bits 8:7) field in the TXCW register. + */ +#define PAUSE_SHIFT 5 + +/* Number of bits required to shift left the "SWDPIO" bits from the + * EEPROM (bits 8:5) to the "SWDPIO" (bits 25:22) field in the CTRL register. + */ +#define SWDPIO_SHIFT 17 + +/* Number of bits required to shift left the "SWDPIO_EXT" bits from the + * EEPROM word F (bits 7:4) to the bits 11:8 of The Extended CTRL register. + */ +#define SWDPIO__EXT_SHIFT 4 + +/* Number of bits required to shift left the "ILOS" bit from the EEPROM + * (bit 4) to the "ILOS" (bit 7) field in the CTRL register. + */ +#define ILOS_SHIFT 3 + +#define RECEIVE_BUFFER_ALIGN_SIZE (256) + +/* Number of milliseconds we wait for auto-negotiation to complete */ +#define LINK_UP_TIMEOUT 500 + +/* Number of milliseconds we wait for Eeprom auto read bit done after MAC reset */ +#define AUTO_READ_DONE_TIMEOUT 10 +/* Number of milliseconds we wait for PHY configuration done after MAC reset */ +#define PHY_CFG_TIMEOUT 100 + +#define E1000_TX_BUFFER_SIZE ((u32)1514) + +/* The carrier extension symbol, as received by the NIC. */ +#define CARRIER_EXTENSION 0x0F + +/* TBI_ACCEPT macro definition: + * + * This macro requires: + * adapter = a pointer to struct e1000_hw + * status = the 8 bit status field of the RX descriptor with EOP set + * error = the 8 bit error field of the RX descriptor with EOP set + * length = the sum of all the length fields of the RX descriptors that + * make up the current frame + * last_byte = the last byte of the frame DMAed by the hardware + * max_frame_length = the maximum frame length we want to accept. + * min_frame_length = the minimum frame length we want to accept. + * + * This macro is a conditional that should be used in the interrupt + * handler's Rx processing routine when RxErrors have been detected. + * + * Typical use: + * ... + * if (TBI_ACCEPT) { + * accept_frame = true; + * e1000_tbi_adjust_stats(adapter, MacAddress); + * frame_length--; + * } else { + * accept_frame = false; + * } + * ... + */ + +#define TBI_ACCEPT(adapter, status, errors, length, last_byte) \ + ((adapter)->tbi_compatibility_on && \ + (((errors) & E1000_RXD_ERR_FRAME_ERR_MASK) == E1000_RXD_ERR_CE) && \ + ((last_byte) == CARRIER_EXTENSION) && \ + (((status) & E1000_RXD_STAT_VP) ? \ + (((length) > ((adapter)->min_frame_size - VLAN_TAG_SIZE)) && \ + ((length) <= ((adapter)->max_frame_size + 1))) : \ + (((length) > (adapter)->min_frame_size) && \ + ((length) <= ((adapter)->max_frame_size + VLAN_TAG_SIZE + 1))))) + +/* Structures, enums, and macros for the PHY */ + +/* Bit definitions for the Management Data IO (MDIO) and Management Data + * Clock (MDC) pins in the Device Control Register. + */ +#define E1000_CTRL_PHY_RESET_DIR E1000_CTRL_SWDPIO0 +#define E1000_CTRL_PHY_RESET E1000_CTRL_SWDPIN0 +#define E1000_CTRL_MDIO_DIR E1000_CTRL_SWDPIO2 +#define E1000_CTRL_MDIO E1000_CTRL_SWDPIN2 +#define E1000_CTRL_MDC_DIR E1000_CTRL_SWDPIO3 +#define E1000_CTRL_MDC E1000_CTRL_SWDPIN3 +#define E1000_CTRL_PHY_RESET_DIR4 E1000_CTRL_EXT_SDP4_DIR +#define E1000_CTRL_PHY_RESET4 E1000_CTRL_EXT_SDP4_DATA + +/* PHY 1000 MII Register/Bit Definitions */ +/* PHY Registers defined by IEEE */ +#define PHY_CTRL 0x00 /* Control Register */ +#define PHY_STATUS 0x01 /* Status Register */ +#define PHY_ID1 0x02 /* Phy Id Reg (word 1) */ +#define PHY_ID2 0x03 /* Phy Id Reg (word 2) */ +#define PHY_AUTONEG_ADV 0x04 /* Autoneg Advertisement */ +#define PHY_LP_ABILITY 0x05 /* Link Partner Ability (Base Page) */ +#define PHY_AUTONEG_EXP 0x06 /* Autoneg Expansion Reg */ +#define PHY_NEXT_PAGE_TX 0x07 /* Next Page TX */ +#define PHY_LP_NEXT_PAGE 0x08 /* Link Partner Next Page */ +#define PHY_1000T_CTRL 0x09 /* 1000Base-T Control Reg */ +#define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Reg */ +#define PHY_EXT_STATUS 0x0F /* Extended Status Reg */ + +#define MAX_PHY_REG_ADDRESS 0x1F /* 5 bit address bus (0-0x1F) */ +#define MAX_PHY_MULTI_PAGE_REG 0xF /* Registers equal on all pages */ + +/* M88E1000 Specific Registers */ +#define M88E1000_PHY_SPEC_CTRL 0x10 /* PHY Specific Control Register */ +#define M88E1000_PHY_SPEC_STATUS 0x11 /* PHY Specific Status Register */ +#define M88E1000_INT_ENABLE 0x12 /* Interrupt Enable Register */ +#define M88E1000_INT_STATUS 0x13 /* Interrupt Status Register */ +#define M88E1000_EXT_PHY_SPEC_CTRL 0x14 /* Extended PHY Specific Control */ +#define M88E1000_RX_ERR_CNTR 0x15 /* Receive Error Counter */ + +#define M88E1000_PHY_EXT_CTRL 0x1A /* PHY extend control register */ +#define M88E1000_PHY_PAGE_SELECT 0x1D /* Reg 29 for page number setting */ +#define M88E1000_PHY_GEN_CONTROL 0x1E /* Its meaning depends on reg 29 */ +#define M88E1000_PHY_VCO_REG_BIT8 0x100 /* Bits 8 & 11 are adjusted for */ +#define M88E1000_PHY_VCO_REG_BIT11 0x800 /* improved BER performance */ + +#define IGP01E1000_IEEE_REGS_PAGE 0x0000 +#define IGP01E1000_IEEE_RESTART_AUTONEG 0x3300 +#define IGP01E1000_IEEE_FORCE_GIGA 0x0140 + +/* IGP01E1000 Specific Registers */ +#define IGP01E1000_PHY_PORT_CONFIG 0x10 /* PHY Specific Port Config Register */ +#define IGP01E1000_PHY_PORT_STATUS 0x11 /* PHY Specific Status Register */ +#define IGP01E1000_PHY_PORT_CTRL 0x12 /* PHY Specific Control Register */ +#define IGP01E1000_PHY_LINK_HEALTH 0x13 /* PHY Link Health Register */ +#define IGP01E1000_GMII_FIFO 0x14 /* GMII FIFO Register */ +#define IGP01E1000_PHY_CHANNEL_QUALITY 0x15 /* PHY Channel Quality Register */ +#define IGP02E1000_PHY_POWER_MGMT 0x19 +#define IGP01E1000_PHY_PAGE_SELECT 0x1F /* PHY Page Select Core Register */ + +/* IGP01E1000 AGC Registers - stores the cable length values*/ +#define IGP01E1000_PHY_AGC_A 0x1172 +#define IGP01E1000_PHY_AGC_B 0x1272 +#define IGP01E1000_PHY_AGC_C 0x1472 +#define IGP01E1000_PHY_AGC_D 0x1872 + +/* IGP02E1000 AGC Registers for cable length values */ +#define IGP02E1000_PHY_AGC_A 0x11B1 +#define IGP02E1000_PHY_AGC_B 0x12B1 +#define IGP02E1000_PHY_AGC_C 0x14B1 +#define IGP02E1000_PHY_AGC_D 0x18B1 + +/* IGP01E1000 DSP Reset Register */ +#define IGP01E1000_PHY_DSP_RESET 0x1F33 +#define IGP01E1000_PHY_DSP_SET 0x1F71 +#define IGP01E1000_PHY_DSP_FFE 0x1F35 + +#define IGP01E1000_PHY_CHANNEL_NUM 4 +#define IGP02E1000_PHY_CHANNEL_NUM 4 + +#define IGP01E1000_PHY_AGC_PARAM_A 0x1171 +#define IGP01E1000_PHY_AGC_PARAM_B 0x1271 +#define IGP01E1000_PHY_AGC_PARAM_C 0x1471 +#define IGP01E1000_PHY_AGC_PARAM_D 0x1871 + +#define IGP01E1000_PHY_EDAC_MU_INDEX 0xC000 +#define IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS 0x8000 + +#define IGP01E1000_PHY_ANALOG_TX_STATE 0x2890 +#define IGP01E1000_PHY_ANALOG_CLASS_A 0x2000 +#define IGP01E1000_PHY_FORCE_ANALOG_ENABLE 0x0004 +#define IGP01E1000_PHY_DSP_FFE_CM_CP 0x0069 + +#define IGP01E1000_PHY_DSP_FFE_DEFAULT 0x002A +/* IGP01E1000 PCS Initialization register - stores the polarity status when + * speed = 1000 Mbps. */ +#define IGP01E1000_PHY_PCS_INIT_REG 0x00B4 +#define IGP01E1000_PHY_PCS_CTRL_REG 0x00B5 + +#define IGP01E1000_ANALOG_REGS_PAGE 0x20C0 + +/* PHY Control Register */ +#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */ +#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */ +#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */ +#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */ +#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */ +#define MII_CR_POWER_DOWN 0x0800 /* Power down */ +#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */ +#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */ +#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */ +#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */ + +/* PHY Status Register */ +#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */ +#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */ +#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */ +#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */ +#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */ +#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */ +#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */ +#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */ +#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */ +#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */ +#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */ +#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */ +#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */ +#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */ +#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */ + +/* Autoneg Advertisement Register */ +#define NWAY_AR_SELECTOR_FIELD 0x0001 /* indicates IEEE 802.3 CSMA/CD */ +#define NWAY_AR_10T_HD_CAPS 0x0020 /* 10T Half Duplex Capable */ +#define NWAY_AR_10T_FD_CAPS 0x0040 /* 10T Full Duplex Capable */ +#define NWAY_AR_100TX_HD_CAPS 0x0080 /* 100TX Half Duplex Capable */ +#define NWAY_AR_100TX_FD_CAPS 0x0100 /* 100TX Full Duplex Capable */ +#define NWAY_AR_100T4_CAPS 0x0200 /* 100T4 Capable */ +#define NWAY_AR_PAUSE 0x0400 /* Pause operation desired */ +#define NWAY_AR_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */ +#define NWAY_AR_REMOTE_FAULT 0x2000 /* Remote Fault detected */ +#define NWAY_AR_NEXT_PAGE 0x8000 /* Next Page ability supported */ + +/* Link Partner Ability Register (Base Page) */ +#define NWAY_LPAR_SELECTOR_FIELD 0x0000 /* LP protocol selector field */ +#define NWAY_LPAR_10T_HD_CAPS 0x0020 /* LP is 10T Half Duplex Capable */ +#define NWAY_LPAR_10T_FD_CAPS 0x0040 /* LP is 10T Full Duplex Capable */ +#define NWAY_LPAR_100TX_HD_CAPS 0x0080 /* LP is 100TX Half Duplex Capable */ +#define NWAY_LPAR_100TX_FD_CAPS 0x0100 /* LP is 100TX Full Duplex Capable */ +#define NWAY_LPAR_100T4_CAPS 0x0200 /* LP is 100T4 Capable */ +#define NWAY_LPAR_PAUSE 0x0400 /* LP Pause operation desired */ +#define NWAY_LPAR_ASM_DIR 0x0800 /* LP Asymmetric Pause Direction bit */ +#define NWAY_LPAR_REMOTE_FAULT 0x2000 /* LP has detected Remote Fault */ +#define NWAY_LPAR_ACKNOWLEDGE 0x4000 /* LP has rx'd link code word */ +#define NWAY_LPAR_NEXT_PAGE 0x8000 /* Next Page ability supported */ + +/* Autoneg Expansion Register */ +#define NWAY_ER_LP_NWAY_CAPS 0x0001 /* LP has Auto Neg Capability */ +#define NWAY_ER_PAGE_RXD 0x0002 /* LP is 10T Half Duplex Capable */ +#define NWAY_ER_NEXT_PAGE_CAPS 0x0004 /* LP is 10T Full Duplex Capable */ +#define NWAY_ER_LP_NEXT_PAGE_CAPS 0x0008 /* LP is 100TX Half Duplex Capable */ +#define NWAY_ER_PAR_DETECT_FAULT 0x0010 /* LP is 100TX Full Duplex Capable */ + +/* Next Page TX Register */ +#define NPTX_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */ +#define NPTX_TOGGLE 0x0800 /* Toggles between exchanges + * of different NP + */ +#define NPTX_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg + * 0 = cannot comply with msg + */ +#define NPTX_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */ +#define NPTX_NEXT_PAGE 0x8000 /* 1 = addition NP will follow + * 0 = sending last NP + */ + +/* Link Partner Next Page Register */ +#define LP_RNPR_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */ +#define LP_RNPR_TOGGLE 0x0800 /* Toggles between exchanges + * of different NP + */ +#define LP_RNPR_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg + * 0 = cannot comply with msg + */ +#define LP_RNPR_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */ +#define LP_RNPR_ACKNOWLDGE 0x4000 /* 1 = ACK / 0 = NO ACK */ +#define LP_RNPR_NEXT_PAGE 0x8000 /* 1 = addition NP will follow + * 0 = sending last NP + */ + +/* 1000BASE-T Control Register */ +#define CR_1000T_ASYM_PAUSE 0x0080 /* Advertise asymmetric pause bit */ +#define CR_1000T_HD_CAPS 0x0100 /* Advertise 1000T HD capability */ +#define CR_1000T_FD_CAPS 0x0200 /* Advertise 1000T FD capability */ +#define CR_1000T_REPEATER_DTE 0x0400 /* 1=Repeater/switch device port */ + /* 0=DTE device */ +#define CR_1000T_MS_VALUE 0x0800 /* 1=Configure PHY as Master */ + /* 0=Configure PHY as Slave */ +#define CR_1000T_MS_ENABLE 0x1000 /* 1=Master/Slave manual config value */ + /* 0=Automatic Master/Slave config */ +#define CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */ +#define CR_1000T_TEST_MODE_1 0x2000 /* Transmit Waveform test */ +#define CR_1000T_TEST_MODE_2 0x4000 /* Master Transmit Jitter test */ +#define CR_1000T_TEST_MODE_3 0x6000 /* Slave Transmit Jitter test */ +#define CR_1000T_TEST_MODE_4 0x8000 /* Transmitter Distortion test */ + +/* 1000BASE-T Status Register */ +#define SR_1000T_IDLE_ERROR_CNT 0x00FF /* Num idle errors since last read */ +#define SR_1000T_ASYM_PAUSE_DIR 0x0100 /* LP asymmetric pause direction bit */ +#define SR_1000T_LP_HD_CAPS 0x0400 /* LP is 1000T HD capable */ +#define SR_1000T_LP_FD_CAPS 0x0800 /* LP is 1000T FD capable */ +#define SR_1000T_REMOTE_RX_STATUS 0x1000 /* Remote receiver OK */ +#define SR_1000T_LOCAL_RX_STATUS 0x2000 /* Local receiver OK */ +#define SR_1000T_MS_CONFIG_RES 0x4000 /* 1=Local TX is Master, 0=Slave */ +#define SR_1000T_MS_CONFIG_FAULT 0x8000 /* Master/Slave config fault */ +#define SR_1000T_REMOTE_RX_STATUS_SHIFT 12 +#define SR_1000T_LOCAL_RX_STATUS_SHIFT 13 +#define SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT 5 +#define FFE_IDLE_ERR_COUNT_TIMEOUT_20 20 +#define FFE_IDLE_ERR_COUNT_TIMEOUT_100 100 + +/* Extended Status Register */ +#define IEEE_ESR_1000T_HD_CAPS 0x1000 /* 1000T HD capable */ +#define IEEE_ESR_1000T_FD_CAPS 0x2000 /* 1000T FD capable */ +#define IEEE_ESR_1000X_HD_CAPS 0x4000 /* 1000X HD capable */ +#define IEEE_ESR_1000X_FD_CAPS 0x8000 /* 1000X FD capable */ + +#define PHY_TX_POLARITY_MASK 0x0100 /* register 10h bit 8 (polarity bit) */ +#define PHY_TX_NORMAL_POLARITY 0 /* register 10h bit 8 (normal polarity) */ + +#define AUTO_POLARITY_DISABLE 0x0010 /* register 11h bit 4 */ + /* (0=enable, 1=disable) */ + +/* M88E1000 PHY Specific Control Register */ +#define M88E1000_PSCR_JABBER_DISABLE 0x0001 /* 1=Jabber Function disabled */ +#define M88E1000_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reversal enabled */ +#define M88E1000_PSCR_SQE_TEST 0x0004 /* 1=SQE Test enabled */ +#define M88E1000_PSCR_CLK125_DISABLE 0x0010 /* 1=CLK125 low, + * 0=CLK125 toggling + */ +#define M88E1000_PSCR_MDI_MANUAL_MODE 0x0000 /* MDI Crossover Mode bits 6:5 */ + /* Manual MDI configuration */ +#define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */ +#define M88E1000_PSCR_AUTO_X_1000T 0x0040 /* 1000BASE-T: Auto crossover, + * 100BASE-TX/10BASE-T: + * MDI Mode + */ +#define M88E1000_PSCR_AUTO_X_MODE 0x0060 /* Auto crossover enabled + * all speeds. + */ +#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE 0x0080 + /* 1=Enable Extended 10BASE-T distance + * (Lower 10BASE-T RX Threshold) + * 0=Normal 10BASE-T RX Threshold */ +#define M88E1000_PSCR_MII_5BIT_ENABLE 0x0100 + /* 1=5-Bit interface in 100BASE-TX + * 0=MII interface in 100BASE-TX */ +#define M88E1000_PSCR_SCRAMBLER_DISABLE 0x0200 /* 1=Scrambler disable */ +#define M88E1000_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force link good */ +#define M88E1000_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */ + +#define M88E1000_PSCR_POLARITY_REVERSAL_SHIFT 1 +#define M88E1000_PSCR_AUTO_X_MODE_SHIFT 5 +#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7 + +/* M88E1000 PHY Specific Status Register */ +#define M88E1000_PSSR_JABBER 0x0001 /* 1=Jabber */ +#define M88E1000_PSSR_REV_POLARITY 0x0002 /* 1=Polarity reversed */ +#define M88E1000_PSSR_DOWNSHIFT 0x0020 /* 1=Downshifted */ +#define M88E1000_PSSR_MDIX 0x0040 /* 1=MDIX; 0=MDI */ +#define M88E1000_PSSR_CABLE_LENGTH 0x0380 /* 0=<50M;1=50-80M;2=80-110M; + * 3=110-140M;4=>140M */ +#define M88E1000_PSSR_LINK 0x0400 /* 1=Link up, 0=Link down */ +#define M88E1000_PSSR_SPD_DPLX_RESOLVED 0x0800 /* 1=Speed & Duplex resolved */ +#define M88E1000_PSSR_PAGE_RCVD 0x1000 /* 1=Page received */ +#define M88E1000_PSSR_DPLX 0x2000 /* 1=Duplex 0=Half Duplex */ +#define M88E1000_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */ +#define M88E1000_PSSR_10MBS 0x0000 /* 00=10Mbs */ +#define M88E1000_PSSR_100MBS 0x4000 /* 01=100Mbs */ +#define M88E1000_PSSR_1000MBS 0x8000 /* 10=1000Mbs */ + +#define M88E1000_PSSR_REV_POLARITY_SHIFT 1 +#define M88E1000_PSSR_DOWNSHIFT_SHIFT 5 +#define M88E1000_PSSR_MDIX_SHIFT 6 +#define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7 + +/* M88E1000 Extended PHY Specific Control Register */ +#define M88E1000_EPSCR_FIBER_LOOPBACK 0x4000 /* 1=Fiber loopback */ +#define M88E1000_EPSCR_DOWN_NO_IDLE 0x8000 /* 1=Lost lock detect enabled. + * Will assert lost lock and bring + * link down if idle not seen + * within 1ms in 1000BASE-T + */ +/* Number of times we will attempt to autonegotiate before downshifting if we + * are the master */ +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK 0x0C00 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_1X 0x0000 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_2X 0x0400 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_3X 0x0800 +#define M88E1000_EPSCR_MASTER_DOWNSHIFT_4X 0x0C00 +/* Number of times we will attempt to autonegotiate before downshifting if we + * are the slave */ +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK 0x0300 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_DIS 0x0000 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X 0x0100 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_2X 0x0200 +#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_3X 0x0300 +#define M88E1000_EPSCR_TX_CLK_2_5 0x0060 /* 2.5 MHz TX_CLK */ +#define M88E1000_EPSCR_TX_CLK_25 0x0070 /* 25 MHz TX_CLK */ +#define M88E1000_EPSCR_TX_CLK_0 0x0000 /* NO TX_CLK */ + +/* M88EC018 Rev 2 specific DownShift settings */ +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK 0x0E00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_1X 0x0000 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_2X 0x0200 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_3X 0x0400 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_4X 0x0600 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X 0x0800 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_6X 0x0A00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_7X 0x0C00 +#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_8X 0x0E00 + +/* IGP01E1000 Specific Port Config Register - R/W */ +#define IGP01E1000_PSCFR_AUTO_MDIX_PAR_DETECT 0x0010 +#define IGP01E1000_PSCFR_PRE_EN 0x0020 +#define IGP01E1000_PSCFR_SMART_SPEED 0x0080 +#define IGP01E1000_PSCFR_DISABLE_TPLOOPBACK 0x0100 +#define IGP01E1000_PSCFR_DISABLE_JABBER 0x0400 +#define IGP01E1000_PSCFR_DISABLE_TRANSMIT 0x2000 + +/* IGP01E1000 Specific Port Status Register - R/O */ +#define IGP01E1000_PSSR_AUTONEG_FAILED 0x0001 /* RO LH SC */ +#define IGP01E1000_PSSR_POLARITY_REVERSED 0x0002 +#define IGP01E1000_PSSR_CABLE_LENGTH 0x007C +#define IGP01E1000_PSSR_FULL_DUPLEX 0x0200 +#define IGP01E1000_PSSR_LINK_UP 0x0400 +#define IGP01E1000_PSSR_MDIX 0x0800 +#define IGP01E1000_PSSR_SPEED_MASK 0xC000 /* speed bits mask */ +#define IGP01E1000_PSSR_SPEED_10MBPS 0x4000 +#define IGP01E1000_PSSR_SPEED_100MBPS 0x8000 +#define IGP01E1000_PSSR_SPEED_1000MBPS 0xC000 +#define IGP01E1000_PSSR_CABLE_LENGTH_SHIFT 0x0002 /* shift right 2 */ +#define IGP01E1000_PSSR_MDIX_SHIFT 0x000B /* shift right 11 */ + +/* IGP01E1000 Specific Port Control Register - R/W */ +#define IGP01E1000_PSCR_TP_LOOPBACK 0x0010 +#define IGP01E1000_PSCR_CORRECT_NC_SCMBLR 0x0200 +#define IGP01E1000_PSCR_TEN_CRS_SELECT 0x0400 +#define IGP01E1000_PSCR_FLIP_CHIP 0x0800 +#define IGP01E1000_PSCR_AUTO_MDIX 0x1000 +#define IGP01E1000_PSCR_FORCE_MDI_MDIX 0x2000 /* 0-MDI, 1-MDIX */ + +/* IGP01E1000 Specific Port Link Health Register */ +#define IGP01E1000_PLHR_SS_DOWNGRADE 0x8000 +#define IGP01E1000_PLHR_GIG_SCRAMBLER_ERROR 0x4000 +#define IGP01E1000_PLHR_MASTER_FAULT 0x2000 +#define IGP01E1000_PLHR_MASTER_RESOLUTION 0x1000 +#define IGP01E1000_PLHR_GIG_REM_RCVR_NOK 0x0800 /* LH */ +#define IGP01E1000_PLHR_IDLE_ERROR_CNT_OFLOW 0x0400 /* LH */ +#define IGP01E1000_PLHR_DATA_ERR_1 0x0200 /* LH */ +#define IGP01E1000_PLHR_DATA_ERR_0 0x0100 +#define IGP01E1000_PLHR_AUTONEG_FAULT 0x0040 +#define IGP01E1000_PLHR_AUTONEG_ACTIVE 0x0010 +#define IGP01E1000_PLHR_VALID_CHANNEL_D 0x0008 +#define IGP01E1000_PLHR_VALID_CHANNEL_C 0x0004 +#define IGP01E1000_PLHR_VALID_CHANNEL_B 0x0002 +#define IGP01E1000_PLHR_VALID_CHANNEL_A 0x0001 + +/* IGP01E1000 Channel Quality Register */ +#define IGP01E1000_MSE_CHANNEL_D 0x000F +#define IGP01E1000_MSE_CHANNEL_C 0x00F0 +#define IGP01E1000_MSE_CHANNEL_B 0x0F00 +#define IGP01E1000_MSE_CHANNEL_A 0xF000 + +#define IGP02E1000_PM_SPD 0x0001 /* Smart Power Down */ +#define IGP02E1000_PM_D3_LPLU 0x0004 /* Enable LPLU in non-D0a modes */ +#define IGP02E1000_PM_D0_LPLU 0x0002 /* Enable LPLU in D0a mode */ + +/* IGP01E1000 DSP reset macros */ +#define DSP_RESET_ENABLE 0x0 +#define DSP_RESET_DISABLE 0x2 +#define E1000_MAX_DSP_RESETS 10 + +/* IGP01E1000 & IGP02E1000 AGC Registers */ + +#define IGP01E1000_AGC_LENGTH_SHIFT 7 /* Coarse - 13:11, Fine - 10:7 */ +#define IGP02E1000_AGC_LENGTH_SHIFT 9 /* Coarse - 15:13, Fine - 12:9 */ + +/* IGP02E1000 AGC Register Length 9-bit mask */ +#define IGP02E1000_AGC_LENGTH_MASK 0x7F + +/* 7 bits (3 Coarse + 4 Fine) --> 128 optional values */ +#define IGP01E1000_AGC_LENGTH_TABLE_SIZE 128 +#define IGP02E1000_AGC_LENGTH_TABLE_SIZE 113 + +/* The precision error of the cable length is +/- 10 meters */ +#define IGP01E1000_AGC_RANGE 10 +#define IGP02E1000_AGC_RANGE 15 + +/* IGP01E1000 PCS Initialization register */ +/* bits 3:6 in the PCS registers stores the channels polarity */ +#define IGP01E1000_PHY_POLARITY_MASK 0x0078 + +/* IGP01E1000 GMII FIFO Register */ +#define IGP01E1000_GMII_FLEX_SPD 0x10 /* Enable flexible speed + * on Link-Up */ +#define IGP01E1000_GMII_SPD 0x20 /* Enable SPD */ + +/* IGP01E1000 Analog Register */ +#define IGP01E1000_ANALOG_SPARE_FUSE_STATUS 0x20D1 +#define IGP01E1000_ANALOG_FUSE_STATUS 0x20D0 +#define IGP01E1000_ANALOG_FUSE_CONTROL 0x20DC +#define IGP01E1000_ANALOG_FUSE_BYPASS 0x20DE + +#define IGP01E1000_ANALOG_FUSE_POLY_MASK 0xF000 +#define IGP01E1000_ANALOG_FUSE_FINE_MASK 0x0F80 +#define IGP01E1000_ANALOG_FUSE_COARSE_MASK 0x0070 +#define IGP01E1000_ANALOG_SPARE_FUSE_ENABLED 0x0100 +#define IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL 0x0002 + +#define IGP01E1000_ANALOG_FUSE_COARSE_THRESH 0x0040 +#define IGP01E1000_ANALOG_FUSE_COARSE_10 0x0010 +#define IGP01E1000_ANALOG_FUSE_FINE_1 0x0080 +#define IGP01E1000_ANALOG_FUSE_FINE_10 0x0500 + +/* Bit definitions for valid PHY IDs. */ +/* I = Integrated + * E = External + */ +#define M88_VENDOR 0x0141 +#define M88E1000_E_PHY_ID 0x01410C50 +#define M88E1000_I_PHY_ID 0x01410C30 +#define M88E1011_I_PHY_ID 0x01410C20 +#define IGP01E1000_I_PHY_ID 0x02A80380 +#define M88E1000_12_PHY_ID M88E1000_E_PHY_ID +#define M88E1000_14_PHY_ID M88E1000_E_PHY_ID +#define M88E1011_I_REV_4 0x04 +#define M88E1111_I_PHY_ID 0x01410CC0 +#define L1LXT971A_PHY_ID 0x001378E0 + +/* Bits... + * 15-5: page + * 4-0: register offset + */ +#define PHY_PAGE_SHIFT 5 +#define PHY_REG(page, reg) \ + (((page) << PHY_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS)) + +#define IGP3_PHY_PORT_CTRL \ + PHY_REG(769, 17) /* Port General Configuration */ +#define IGP3_PHY_RATE_ADAPT_CTRL \ + PHY_REG(769, 25) /* Rate Adapter Control Register */ + +#define IGP3_KMRN_FIFO_CTRL_STATS \ + PHY_REG(770, 16) /* KMRN FIFO's control/status register */ +#define IGP3_KMRN_POWER_MNG_CTRL \ + PHY_REG(770, 17) /* KMRN Power Management Control Register */ +#define IGP3_KMRN_INBAND_CTRL \ + PHY_REG(770, 18) /* KMRN Inband Control Register */ +#define IGP3_KMRN_DIAG \ + PHY_REG(770, 19) /* KMRN Diagnostic register */ +#define IGP3_KMRN_DIAG_PCS_LOCK_LOSS 0x0002 /* RX PCS is not synced */ +#define IGP3_KMRN_ACK_TIMEOUT \ + PHY_REG(770, 20) /* KMRN Acknowledge Timeouts register */ + +#define IGP3_VR_CTRL \ + PHY_REG(776, 18) /* Voltage regulator control register */ +#define IGP3_VR_CTRL_MODE_SHUT 0x0200 /* Enter powerdown, shutdown VRs */ +#define IGP3_VR_CTRL_MODE_MASK 0x0300 /* Shutdown VR Mask */ + +#define IGP3_CAPABILITY \ + PHY_REG(776, 19) /* IGP3 Capability Register */ + +/* Capabilities for SKU Control */ +#define IGP3_CAP_INITIATE_TEAM 0x0001 /* Able to initiate a team */ +#define IGP3_CAP_WFM 0x0002 /* Support WoL and PXE */ +#define IGP3_CAP_ASF 0x0004 /* Support ASF */ +#define IGP3_CAP_LPLU 0x0008 /* Support Low Power Link Up */ +#define IGP3_CAP_DC_AUTO_SPEED 0x0010 /* Support AC/DC Auto Link Speed */ +#define IGP3_CAP_SPD 0x0020 /* Support Smart Power Down */ +#define IGP3_CAP_MULT_QUEUE 0x0040 /* Support 2 tx & 2 rx queues */ +#define IGP3_CAP_RSS 0x0080 /* Support RSS */ +#define IGP3_CAP_8021PQ 0x0100 /* Support 802.1Q & 802.1p */ +#define IGP3_CAP_AMT_CB 0x0200 /* Support active manageability and circuit breaker */ + +#define IGP3_PPC_JORDAN_EN 0x0001 +#define IGP3_PPC_JORDAN_GIGA_SPEED 0x0002 + +#define IGP3_KMRN_PMC_EE_IDLE_LINK_DIS 0x0001 +#define IGP3_KMRN_PMC_K0S_ENTRY_LATENCY_MASK 0x001E +#define IGP3_KMRN_PMC_K0S_MODE1_EN_GIGA 0x0020 +#define IGP3_KMRN_PMC_K0S_MODE1_EN_100 0x0040 + +#define IGP3E1000_PHY_MISC_CTRL 0x1B /* Misc. Ctrl register */ +#define IGP3_PHY_MISC_DUPLEX_MANUAL_SET 0x1000 /* Duplex Manual Set */ + +#define IGP3_KMRN_EXT_CTRL PHY_REG(770, 18) +#define IGP3_KMRN_EC_DIS_INBAND 0x0080 + +#define IGP03E1000_E_PHY_ID 0x02A80390 +#define IFE_E_PHY_ID 0x02A80330 /* 10/100 PHY */ +#define IFE_PLUS_E_PHY_ID 0x02A80320 +#define IFE_C_E_PHY_ID 0x02A80310 + +#define IFE_PHY_EXTENDED_STATUS_CONTROL 0x10 /* 100BaseTx Extended Status, Control and Address */ +#define IFE_PHY_SPECIAL_CONTROL 0x11 /* 100BaseTx PHY special control register */ +#define IFE_PHY_RCV_FALSE_CARRIER 0x13 /* 100BaseTx Receive False Carrier Counter */ +#define IFE_PHY_RCV_DISCONNECT 0x14 /* 100BaseTx Receive Disconnect Counter */ +#define IFE_PHY_RCV_ERROT_FRAME 0x15 /* 100BaseTx Receive Error Frame Counter */ +#define IFE_PHY_RCV_SYMBOL_ERR 0x16 /* Receive Symbol Error Counter */ +#define IFE_PHY_PREM_EOF_ERR 0x17 /* 100BaseTx Receive Premature End Of Frame Error Counter */ +#define IFE_PHY_RCV_EOF_ERR 0x18 /* 10BaseT Receive End Of Frame Error Counter */ +#define IFE_PHY_TX_JABBER_DETECT 0x19 /* 10BaseT Transmit Jabber Detect Counter */ +#define IFE_PHY_EQUALIZER 0x1A /* PHY Equalizer Control and Status */ +#define IFE_PHY_SPECIAL_CONTROL_LED 0x1B /* PHY special control and LED configuration */ +#define IFE_PHY_MDIX_CONTROL 0x1C /* MDI/MDI-X Control register */ +#define IFE_PHY_HWI_CONTROL 0x1D /* Hardware Integrity Control (HWI) */ + +#define IFE_PESC_REDUCED_POWER_DOWN_DISABLE 0x2000 /* Default 1 = Disable auto reduced power down */ +#define IFE_PESC_100BTX_POWER_DOWN 0x0400 /* Indicates the power state of 100BASE-TX */ +#define IFE_PESC_10BTX_POWER_DOWN 0x0200 /* Indicates the power state of 10BASE-T */ +#define IFE_PESC_POLARITY_REVERSED 0x0100 /* Indicates 10BASE-T polarity */ +#define IFE_PESC_PHY_ADDR_MASK 0x007C /* Bit 6:2 for sampled PHY address */ +#define IFE_PESC_SPEED 0x0002 /* Auto-negotiation speed result 1=100Mbs, 0=10Mbs */ +#define IFE_PESC_DUPLEX 0x0001 /* Auto-negotiation duplex result 1=Full, 0=Half */ +#define IFE_PESC_POLARITY_REVERSED_SHIFT 8 + +#define IFE_PSC_DISABLE_DYNAMIC_POWER_DOWN 0x0100 /* 1 = Dynamic Power Down disabled */ +#define IFE_PSC_FORCE_POLARITY 0x0020 /* 1=Reversed Polarity, 0=Normal */ +#define IFE_PSC_AUTO_POLARITY_DISABLE 0x0010 /* 1=Auto Polarity Disabled, 0=Enabled */ +#define IFE_PSC_JABBER_FUNC_DISABLE 0x0001 /* 1=Jabber Disabled, 0=Normal Jabber Operation */ +#define IFE_PSC_FORCE_POLARITY_SHIFT 5 +#define IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT 4 + +#define IFE_PMC_AUTO_MDIX 0x0080 /* 1=enable MDI/MDI-X feature, default 0=disabled */ +#define IFE_PMC_FORCE_MDIX 0x0040 /* 1=force MDIX-X, 0=force MDI */ +#define IFE_PMC_MDIX_STATUS 0x0020 /* 1=MDI-X, 0=MDI */ +#define IFE_PMC_AUTO_MDIX_COMPLETE 0x0010 /* Resolution algorithm is completed */ +#define IFE_PMC_MDIX_MODE_SHIFT 6 +#define IFE_PHC_MDIX_RESET_ALL_MASK 0x0000 /* Disable auto MDI-X */ + +#define IFE_PHC_HWI_ENABLE 0x8000 /* Enable the HWI feature */ +#define IFE_PHC_ABILITY_CHECK 0x4000 /* 1= Test Passed, 0=failed */ +#define IFE_PHC_TEST_EXEC 0x2000 /* PHY launch test pulses on the wire */ +#define IFE_PHC_HIGHZ 0x0200 /* 1 = Open Circuit */ +#define IFE_PHC_LOWZ 0x0400 /* 1 = Short Circuit */ +#define IFE_PHC_LOW_HIGH_Z_MASK 0x0600 /* Mask for indication type of problem on the line */ +#define IFE_PHC_DISTANCE_MASK 0x01FF /* Mask for distance to the cable problem, in 80cm granularity */ +#define IFE_PHC_RESET_ALL_MASK 0x0000 /* Disable HWI */ +#define IFE_PSCL_PROBE_MODE 0x0020 /* LED Probe mode */ +#define IFE_PSCL_PROBE_LEDS_OFF 0x0006 /* Force LEDs 0 and 2 off */ +#define IFE_PSCL_PROBE_LEDS_ON 0x0007 /* Force LEDs 0 and 2 on */ + +#define ICH_FLASH_COMMAND_TIMEOUT 5000 /* 5000 uSecs - adjusted */ +#define ICH_FLASH_ERASE_TIMEOUT 3000000 /* Up to 3 seconds - worst case */ +#define ICH_FLASH_CYCLE_REPEAT_COUNT 10 /* 10 cycles */ +#define ICH_FLASH_SEG_SIZE_256 256 +#define ICH_FLASH_SEG_SIZE_4K 4096 +#define ICH_FLASH_SEG_SIZE_64K 65536 + +#define ICH_CYCLE_READ 0x0 +#define ICH_CYCLE_RESERVED 0x1 +#define ICH_CYCLE_WRITE 0x2 +#define ICH_CYCLE_ERASE 0x3 + +#define ICH_FLASH_GFPREG 0x0000 +#define ICH_FLASH_HSFSTS 0x0004 +#define ICH_FLASH_HSFCTL 0x0006 +#define ICH_FLASH_FADDR 0x0008 +#define ICH_FLASH_FDATA0 0x0010 +#define ICH_FLASH_FRACC 0x0050 +#define ICH_FLASH_FREG0 0x0054 +#define ICH_FLASH_FREG1 0x0058 +#define ICH_FLASH_FREG2 0x005C +#define ICH_FLASH_FREG3 0x0060 +#define ICH_FLASH_FPR0 0x0074 +#define ICH_FLASH_FPR1 0x0078 +#define ICH_FLASH_SSFSTS 0x0090 +#define ICH_FLASH_SSFCTL 0x0092 +#define ICH_FLASH_PREOP 0x0094 +#define ICH_FLASH_OPTYPE 0x0096 +#define ICH_FLASH_OPMENU 0x0098 + +#define ICH_FLASH_REG_MAPSIZE 0x00A0 +#define ICH_FLASH_SECTOR_SIZE 4096 +#define ICH_GFPREG_BASE_MASK 0x1FFF +#define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF + +/* Miscellaneous PHY bit definitions. */ +#define PHY_PREAMBLE 0xFFFFFFFF +#define PHY_SOF 0x01 +#define PHY_OP_READ 0x02 +#define PHY_OP_WRITE 0x01 +#define PHY_TURNAROUND 0x02 +#define PHY_PREAMBLE_SIZE 32 +#define MII_CR_SPEED_1000 0x0040 +#define MII_CR_SPEED_100 0x2000 +#define MII_CR_SPEED_10 0x0000 +#define E1000_PHY_ADDRESS 0x01 +#define PHY_AUTO_NEG_TIME 45 /* 4.5 Seconds */ +#define PHY_FORCE_TIME 20 /* 2.0 Seconds */ +#define PHY_REVISION_MASK 0xFFFFFFF0 +#define DEVICE_SPEED_MASK 0x00000300 /* Device Ctrl Reg Speed Mask */ +#define REG4_SPEED_MASK 0x01E0 +#define REG9_SPEED_MASK 0x0300 +#define ADVERTISE_10_HALF 0x0001 +#define ADVERTISE_10_FULL 0x0002 +#define ADVERTISE_100_HALF 0x0004 +#define ADVERTISE_100_FULL 0x0008 +#define ADVERTISE_1000_HALF 0x0010 +#define ADVERTISE_1000_FULL 0x0020 +#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F /* Everything but 1000-Half */ +#define AUTONEG_ADVERTISE_10_100_ALL 0x000F /* All 10/100 speeds */ +#define AUTONEG_ADVERTISE_10_ALL 0x0003 /* 10Mbps Full & Half speeds */ + +#endif /* _E1000_HW_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_main-2.6.31-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_main-2.6.31-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,5027 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + + vim: noexpandtab + +*******************************************************************************/ + +#include "e1000-2.6.31-ethercat.h" +#include + +char e1000_driver_name[] = "ec_e1000"; +static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver"; +#define DRV_VERSION "7.3.21-k3-NAPI" +const char e1000_driver_version[] = DRV_VERSION; +static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation."; + +/* e1000_pci_tbl - PCI Device ID Table + * + * Last entry must be all 0s + * + * Macro expands to... + * {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} + */ +static struct pci_device_id e1000_pci_tbl[] = { + INTEL_E1000_ETHERNET_DEVICE(0x1000), + INTEL_E1000_ETHERNET_DEVICE(0x1001), + INTEL_E1000_ETHERNET_DEVICE(0x1004), + INTEL_E1000_ETHERNET_DEVICE(0x1008), + INTEL_E1000_ETHERNET_DEVICE(0x1009), + INTEL_E1000_ETHERNET_DEVICE(0x100C), + INTEL_E1000_ETHERNET_DEVICE(0x100D), + INTEL_E1000_ETHERNET_DEVICE(0x100E), + INTEL_E1000_ETHERNET_DEVICE(0x100F), + INTEL_E1000_ETHERNET_DEVICE(0x1010), + INTEL_E1000_ETHERNET_DEVICE(0x1011), + INTEL_E1000_ETHERNET_DEVICE(0x1012), + INTEL_E1000_ETHERNET_DEVICE(0x1013), + INTEL_E1000_ETHERNET_DEVICE(0x1014), + INTEL_E1000_ETHERNET_DEVICE(0x1015), + INTEL_E1000_ETHERNET_DEVICE(0x1016), + INTEL_E1000_ETHERNET_DEVICE(0x1017), + INTEL_E1000_ETHERNET_DEVICE(0x1018), + INTEL_E1000_ETHERNET_DEVICE(0x1019), + INTEL_E1000_ETHERNET_DEVICE(0x101A), + INTEL_E1000_ETHERNET_DEVICE(0x101D), + INTEL_E1000_ETHERNET_DEVICE(0x101E), + INTEL_E1000_ETHERNET_DEVICE(0x1026), + INTEL_E1000_ETHERNET_DEVICE(0x1027), + INTEL_E1000_ETHERNET_DEVICE(0x1028), + INTEL_E1000_ETHERNET_DEVICE(0x1075), + INTEL_E1000_ETHERNET_DEVICE(0x1076), + INTEL_E1000_ETHERNET_DEVICE(0x1077), + INTEL_E1000_ETHERNET_DEVICE(0x1078), + INTEL_E1000_ETHERNET_DEVICE(0x1079), + INTEL_E1000_ETHERNET_DEVICE(0x107A), + INTEL_E1000_ETHERNET_DEVICE(0x107B), + INTEL_E1000_ETHERNET_DEVICE(0x107C), + INTEL_E1000_ETHERNET_DEVICE(0x108A), + INTEL_E1000_ETHERNET_DEVICE(0x1099), + INTEL_E1000_ETHERNET_DEVICE(0x10B5), + /* required last entry */ + {0,} +}; + +// do not auto-load driver +// MODULE_DEVICE_TABLE(pci, e1000_pci_tbl); + +int e1000_up(struct e1000_adapter *adapter); +void e1000_down(struct e1000_adapter *adapter); +void e1000_reinit_locked(struct e1000_adapter *adapter); +void e1000_reset(struct e1000_adapter *adapter); +int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +void e1000_free_all_rx_resources(struct e1000_adapter *adapter); +static int e1000_setup_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *txdr); +static int e1000_setup_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rxdr); +static void e1000_free_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static void e1000_free_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring); +void e1000_update_stats(struct e1000_adapter *adapter); + +static int e1000_init_module(void); +static void e1000_exit_module(void); +static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent); +static void __devexit e1000_remove(struct pci_dev *pdev); +static int e1000_alloc_queues(struct e1000_adapter *adapter); +static int e1000_sw_init(struct e1000_adapter *adapter); +static int e1000_open(struct net_device *netdev); +static int e1000_close(struct net_device *netdev); +static void e1000_configure_tx(struct e1000_adapter *adapter); +static void e1000_configure_rx(struct e1000_adapter *adapter); +static void e1000_setup_rctl(struct e1000_adapter *adapter); +static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter); +static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter); +static void e1000_clean_tx_ring(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static void e1000_clean_rx_ring(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring); +static void e1000_set_rx_mode(struct net_device *netdev); +static void e1000_update_phy_info(unsigned long data); +static void e1000_watchdog(unsigned long data); +static void e1000_82547_tx_fifo_stall(unsigned long data); +static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev); +static struct net_device_stats * e1000_get_stats(struct net_device *netdev); +static int e1000_change_mtu(struct net_device *netdev, int new_mtu); +static int e1000_set_mac(struct net_device *netdev, void *p); +void ec_poll(struct net_device *); +static irqreturn_t e1000_intr(int irq, void *data); +static irqreturn_t e1000_intr_msi(int irq, void *data); +static bool e1000_clean_tx_irq(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static int e1000_clean(struct napi_struct *napi, int budget); +static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); +static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); +static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd); +static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd); +static void e1000_enter_82542_rst(struct e1000_adapter *adapter); +static void e1000_leave_82542_rst(struct e1000_adapter *adapter); +static void e1000_tx_timeout(struct net_device *dev); +static void e1000_reset_task(struct work_struct *work); +static void e1000_smartspeed(struct e1000_adapter *adapter); +static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, + struct sk_buff *skb); + +static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp); +static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); +static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); +static void e1000_restore_vlan(struct e1000_adapter *adapter); + +#ifdef CONFIG_PM +static int e1000_suspend(struct pci_dev *pdev, pm_message_t state); +static int e1000_resume(struct pci_dev *pdev); +#endif +static void e1000_shutdown(struct pci_dev *pdev); + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* for netdump / net console */ +static void e1000_netpoll (struct net_device *netdev); +#endif + +#define COPYBREAK_DEFAULT 256 +static unsigned int copybreak __read_mostly = COPYBREAK_DEFAULT; +module_param(copybreak, uint, 0644); +MODULE_PARM_DESC(copybreak, + "Maximum size of packet that is copied to a new buffer on receive"); + +static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state); +static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev); +static void e1000_io_resume(struct pci_dev *pdev); + +static struct pci_error_handlers e1000_err_handler = { + .error_detected = e1000_io_error_detected, + .slot_reset = e1000_io_slot_reset, + .resume = e1000_io_resume, +}; + +static struct pci_driver e1000_driver = { + .name = e1000_driver_name, + .id_table = e1000_pci_tbl, + .probe = e1000_probe, + .remove = __devexit_p(e1000_remove), +#ifdef CONFIG_PM + /* Power Managment Hooks */ + .suspend = e1000_suspend, + .resume = e1000_resume, +#endif + .shutdown = e1000_shutdown, + .err_handler = &e1000_err_handler +}; + +MODULE_AUTHOR("Florian Pose "); +MODULE_DESCRIPTION("EtherCAT-capable Intel(R) PRO/1000 Network Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + +/** + * e1000_init_module - Driver Registration Routine + * + * e1000_init_module is the first routine called when the driver is + * loaded. All it does is register with the PCI subsystem. + **/ + +static int __init e1000_init_module(void) +{ + int ret; + printk(KERN_INFO "%s - version %s\n", + e1000_driver_string, e1000_driver_version); + + printk(KERN_INFO "%s\n", e1000_copyright); + + ret = pci_register_driver(&e1000_driver); + if (copybreak != COPYBREAK_DEFAULT) { + if (copybreak == 0) + printk(KERN_INFO "e1000: copybreak disabled\n"); + else + printk(KERN_INFO "e1000: copybreak enabled for " + "packets <= %u bytes\n", copybreak); + } + return ret; +} + +module_init(e1000_init_module); + +/** + * e1000_exit_module - Driver Exit Cleanup Routine + * + * e1000_exit_module is called just before the driver is removed + * from memory. + **/ + +static void __exit e1000_exit_module(void) +{ + pci_unregister_driver(&e1000_driver); +} + +module_exit(e1000_exit_module); + +static int e1000_request_irq(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + irq_handler_t handler = e1000_intr; + int irq_flags = IRQF_SHARED; + int err; + + if (adapter->ecdev) + return 0; + + if (hw->mac_type >= e1000_82571) { + adapter->have_msi = !pci_enable_msi(adapter->pdev); + if (adapter->have_msi) { + handler = e1000_intr_msi; + irq_flags = 0; + } + } + + err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name, + netdev); + if (err) { + if (adapter->have_msi) + pci_disable_msi(adapter->pdev); + DPRINTK(PROBE, ERR, + "Unable to allocate interrupt Error: %d\n", err); + } + + return err; +} + +static void e1000_free_irq(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + + if (adapter->ecdev) + return; + + free_irq(adapter->pdev->irq, netdev); + + if (adapter->have_msi) + pci_disable_msi(adapter->pdev); +} + +/** + * e1000_irq_disable - Mask off interrupt generation on the NIC + * @adapter: board private structure + **/ + +static void e1000_irq_disable(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->ecdev) + return; + + ew32(IMC, ~0); + E1000_WRITE_FLUSH(); + synchronize_irq(adapter->pdev->irq); +} + +/** + * e1000_irq_enable - Enable default interrupt generation settings + * @adapter: board private structure + **/ + +static void e1000_irq_enable(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->ecdev) + return; + + ew32(IMS, IMS_ENABLE_MASK); + E1000_WRITE_FLUSH(); +} + +static void e1000_update_mng_vlan(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u16 vid = hw->mng_cookie.vlan_id; + u16 old_vid = adapter->mng_vlan_id; + if (adapter->vlgrp) { + if (!vlan_group_get_device(adapter->vlgrp, vid)) { + if (hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) { + e1000_vlan_rx_add_vid(netdev, vid); + adapter->mng_vlan_id = vid; + } else + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + + if ((old_vid != (u16)E1000_MNG_VLAN_NONE) && + (vid != old_vid) && + !vlan_group_get_device(adapter->vlgrp, old_vid)) + e1000_vlan_rx_kill_vid(netdev, old_vid); + } else + adapter->mng_vlan_id = vid; + } +} + +/** + * e1000_release_hw_control - release control of the h/w to f/w + * @adapter: address of board private structure + * + * e1000_release_hw_control resets {CTRL_EXT|FWSM}:DRV_LOAD bit. + * For ASF and Pass Through versions of f/w this means that the + * driver is no longer loaded. For AMT version (only with 82573) i + * of the f/w this means that the network i/f is closed. + * + **/ + +static void e1000_release_hw_control(struct e1000_adapter *adapter) +{ + u32 ctrl_ext; + u32 swsm; + struct e1000_hw *hw = &adapter->hw; + + /* Let firmware taken over control of h/w */ + switch (hw->mac_type) { + case e1000_82573: + swsm = er32(SWSM); + ew32(SWSM, swsm & ~E1000_SWSM_DRV_LOAD); + break; + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + case e1000_ich8lan: + ctrl_ext = er32(CTRL_EXT); + ew32(CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD); + break; + default: + break; + } +} + +/** + * e1000_get_hw_control - get control of the h/w from f/w + * @adapter: address of board private structure + * + * e1000_get_hw_control sets {CTRL_EXT|FWSM}:DRV_LOAD bit. + * For ASF and Pass Through versions of f/w this means that + * the driver is loaded. For AMT version (only with 82573) + * of the f/w this means that the network i/f is open. + * + **/ + +static void e1000_get_hw_control(struct e1000_adapter *adapter) +{ + u32 ctrl_ext; + u32 swsm; + struct e1000_hw *hw = &adapter->hw; + + /* Let firmware know the driver has taken over */ + switch (hw->mac_type) { + case e1000_82573: + swsm = er32(SWSM); + ew32(SWSM, swsm | E1000_SWSM_DRV_LOAD); + break; + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + case e1000_ich8lan: + ctrl_ext = er32(CTRL_EXT); + ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD); + break; + default: + break; + } +} + +static void e1000_init_manageability(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->en_mng_pt) { + u32 manc = er32(MANC); + + /* disable hardware interception of ARP */ + manc &= ~(E1000_MANC_ARP_EN); + + /* enable receiving management packets to the host */ + /* this will probably generate destination unreachable messages + * from the host OS, but the packets will be handled on SMBUS */ + if (hw->has_manc2h) { + u32 manc2h = er32(MANC2H); + + manc |= E1000_MANC_EN_MNG2HOST; +#define E1000_MNG2HOST_PORT_623 (1 << 5) +#define E1000_MNG2HOST_PORT_664 (1 << 6) + manc2h |= E1000_MNG2HOST_PORT_623; + manc2h |= E1000_MNG2HOST_PORT_664; + ew32(MANC2H, manc2h); + } + + ew32(MANC, manc); + } +} + +static void e1000_release_manageability(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->en_mng_pt) { + u32 manc = er32(MANC); + + /* re-enable hardware interception of ARP */ + manc |= E1000_MANC_ARP_EN; + + if (hw->has_manc2h) + manc &= ~E1000_MANC_EN_MNG2HOST; + + /* don't explicitly have to mess with MANC2H since + * MANC has an enable disable that gates MANC2H */ + + ew32(MANC, manc); + } +} + +/** + * e1000_configure - configure the hardware for RX and TX + * @adapter = private board structure + **/ +static void e1000_configure(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + int i; + + e1000_set_rx_mode(netdev); + + e1000_restore_vlan(adapter); + e1000_init_manageability(adapter); + + e1000_configure_tx(adapter); + e1000_setup_rctl(adapter); + e1000_configure_rx(adapter); + /* call E1000_DESC_UNUSED which always leaves + * at least 1 descriptor unused to make sure + * next_to_use != next_to_clean */ + for (i = 0; i < adapter->num_rx_queues; i++) { + struct e1000_rx_ring *ring = &adapter->rx_ring[i]; + if (adapter->ecdev) { + /* fill rx ring completely! */ + adapter->alloc_rx_buf(adapter, ring, ring->count); + } else { + /* this one leaves the last ring element unallocated! */ + adapter->alloc_rx_buf(adapter, ring, + E1000_DESC_UNUSED(ring)); + } + } + + adapter->tx_queue_len = netdev->tx_queue_len; +} + +int e1000_up(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* hardware has been reset, we need to reload some things */ + e1000_configure(adapter); + + clear_bit(__E1000_DOWN, &adapter->flags); + + if (!adapter->ecdev) { + napi_enable(&adapter->napi); + + e1000_irq_enable(adapter); + + netif_wake_queue(adapter->netdev); + + /* fire a link change interrupt to start the watchdog */ + ew32(ICS, E1000_ICS_LSC); + } + return 0; +} + +/** + * e1000_power_up_phy - restore link in case the phy was powered down + * @adapter: address of board private structure + * + * The phy may be powered down to save power and turn off link when the + * driver is unloaded and wake on lan is not enabled (among others) + * *** this routine MUST be followed by a call to e1000_reset *** + * + **/ + +void e1000_power_up_phy(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 mii_reg = 0; + + /* Just clear the power down bit to wake the phy back up */ + if (hw->media_type == e1000_media_type_copper) { + /* according to the manual, the phy will retain its + * settings across a power-down/up cycle */ + e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg); + mii_reg &= ~MII_CR_POWER_DOWN; + e1000_write_phy_reg(hw, PHY_CTRL, mii_reg); + } +} + +static void e1000_power_down_phy(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* Power down the PHY so no link is implied when interface is down * + * The PHY cannot be powered down if any of the following is true * + * (a) WoL is enabled + * (b) AMT is active + * (c) SoL/IDER session is active */ + if (!adapter->wol && hw->mac_type >= e1000_82540 && + hw->media_type == e1000_media_type_copper) { + u16 mii_reg = 0; + + switch (hw->mac_type) { + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (er32(MANC) & E1000_MANC_SMBUS_EN) + goto out; + break; + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + if (e1000_check_mng_mode(hw) || + e1000_check_phy_reset_block(hw)) + goto out; + break; + default: + goto out; + } + e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg); + mii_reg |= MII_CR_POWER_DOWN; + e1000_write_phy_reg(hw, PHY_CTRL, mii_reg); + mdelay(1); + } +out: + return; +} + +void e1000_down(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl, tctl; + + /* signal that we're down so the interrupt handler does not + * reschedule our watchdog timer */ + set_bit(__E1000_DOWN, &adapter->flags); + + /* disable receives in the hardware */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + + if (!adapter->ecdev) { + /* flush and sleep below */ + /* can be netif_tx_disable when NETIF_F_LLTX is removed */ + netif_stop_queue(netdev); + } + + /* disable transmits in the hardware */ + tctl = er32(TCTL); + tctl &= ~E1000_TCTL_EN; + ew32(TCTL, tctl); + /* flush both disables and wait for them to finish */ + E1000_WRITE_FLUSH(); + msleep(10); + + if (!adapter->ecdev) { + napi_disable(&adapter->napi); + + e1000_irq_disable(adapter); + + del_timer_sync(&adapter->tx_fifo_stall_timer); + del_timer_sync(&adapter->watchdog_timer); + del_timer_sync(&adapter->phy_info_timer); + } + + netdev->tx_queue_len = adapter->tx_queue_len; + adapter->link_speed = 0; + adapter->link_duplex = 0; + if (!adapter->ecdev) { + netif_carrier_off(netdev); + } + + e1000_reset(adapter); + e1000_clean_all_tx_rings(adapter); + e1000_clean_all_rx_rings(adapter); +} + +void e1000_reinit_locked(struct e1000_adapter *adapter) +{ + WARN_ON(in_interrupt()); + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + e1000_down(adapter); + e1000_up(adapter); + clear_bit(__E1000_RESETTING, &adapter->flags); +} + +void e1000_reset(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 pba = 0, tx_space, min_tx_space, min_rx_space; + u16 fc_high_water_mark = E1000_FC_HIGH_DIFF; + bool legacy_pba_adjust = false; + + /* Repartition Pba for greater than 9k mtu + * To take effect CTRL.RST is required. + */ + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + case e1000_82540: + case e1000_82541: + case e1000_82541_rev_2: + legacy_pba_adjust = true; + pba = E1000_PBA_48K; + break; + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + pba = E1000_PBA_48K; + break; + case e1000_82547: + case e1000_82547_rev_2: + legacy_pba_adjust = true; + pba = E1000_PBA_30K; + break; + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + pba = E1000_PBA_38K; + break; + case e1000_82573: + pba = E1000_PBA_20K; + break; + case e1000_ich8lan: + pba = E1000_PBA_8K; + case e1000_undefined: + case e1000_num_macs: + break; + } + + if (legacy_pba_adjust) { + if (adapter->netdev->mtu > E1000_RXBUFFER_8192) + pba -= 8; /* allocate more FIFO for Tx */ + + if (hw->mac_type == e1000_82547) { + adapter->tx_fifo_head = 0; + adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT; + adapter->tx_fifo_size = + (E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT; + atomic_set(&adapter->tx_fifo_stall, 0); + } + } else if (hw->max_frame_size > MAXIMUM_ETHERNET_FRAME_SIZE) { + /* adjust PBA for jumbo frames */ + ew32(PBA, pba); + + /* To maintain wire speed transmits, the Tx FIFO should be + * large enough to accomodate two full transmit packets, + * rounded up to the next 1KB and expressed in KB. Likewise, + * the Rx FIFO should be large enough to accomodate at least + * one full receive packet and is similarly rounded up and + * expressed in KB. */ + pba = er32(PBA); + /* upper 16 bits has Tx packet buffer allocation size in KB */ + tx_space = pba >> 16; + /* lower 16 bits has Rx packet buffer allocation size in KB */ + pba &= 0xffff; + /* don't include ethernet FCS because hardware appends/strips */ + min_rx_space = adapter->netdev->mtu + ENET_HEADER_SIZE + + VLAN_TAG_SIZE; + min_tx_space = min_rx_space; + min_tx_space *= 2; + min_tx_space = ALIGN(min_tx_space, 1024); + min_tx_space >>= 10; + min_rx_space = ALIGN(min_rx_space, 1024); + min_rx_space >>= 10; + + /* If current Tx allocation is less than the min Tx FIFO size, + * and the min Tx FIFO size is less than the current Rx FIFO + * allocation, take space away from current Rx allocation */ + if (tx_space < min_tx_space && + ((min_tx_space - tx_space) < pba)) { + pba = pba - (min_tx_space - tx_space); + + /* PCI/PCIx hardware has PBA alignment constraints */ + switch (hw->mac_type) { + case e1000_82545 ... e1000_82546_rev_3: + pba &= ~(E1000_PBA_8K - 1); + break; + default: + break; + } + + /* if short on rx space, rx wins and must trump tx + * adjustment or use Early Receive if available */ + if (pba < min_rx_space) { + switch (hw->mac_type) { + case e1000_82573: + /* ERT enabled in e1000_configure_rx */ + break; + default: + pba = min_rx_space; + break; + } + } + } + } + + ew32(PBA, pba); + + /* flow control settings */ + /* Set the FC high water mark to 90% of the FIFO size. + * Required to clear last 3 LSB */ + fc_high_water_mark = ((pba * 9216)/10) & 0xFFF8; + /* We can't use 90% on small FIFOs because the remainder + * would be less than 1 full frame. In this case, we size + * it to allow at least a full frame above the high water + * mark. */ + if (pba < E1000_PBA_16K) + fc_high_water_mark = (pba * 1024) - 1600; + + hw->fc_high_water = fc_high_water_mark; + hw->fc_low_water = fc_high_water_mark - 8; + if (hw->mac_type == e1000_80003es2lan) + hw->fc_pause_time = 0xFFFF; + else + hw->fc_pause_time = E1000_FC_PAUSE_TIME; + hw->fc_send_xon = 1; + hw->fc = hw->original_fc; + + /* Allow time for pending master requests to run */ + e1000_reset_hw(hw); + if (hw->mac_type >= e1000_82544) + ew32(WUC, 0); + + if (e1000_init_hw(hw)) + DPRINTK(PROBE, ERR, "Hardware Error\n"); + e1000_update_mng_vlan(adapter); + + /* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */ + if (hw->mac_type >= e1000_82544 && + hw->mac_type <= e1000_82547_rev_2 && + hw->autoneg == 1 && + hw->autoneg_advertised == ADVERTISE_1000_FULL) { + u32 ctrl = er32(CTRL); + /* clear phy power management bit if we are in gig only mode, + * which if enabled will attempt negotiation to 100Mb, which + * can cause a loss of link at power off or driver unload */ + ctrl &= ~E1000_CTRL_SWDPIN3; + ew32(CTRL, ctrl); + } + + /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ + ew32(VET, ETHERNET_IEEE_VLAN_TYPE); + + e1000_reset_adaptive(hw); + e1000_phy_get_info(hw, &adapter->phy_info); + + if (!adapter->smart_power_down && + (hw->mac_type == e1000_82571 || + hw->mac_type == e1000_82572)) { + u16 phy_data = 0; + /* speed up time to link by disabling smart power down, ignore + * the return value of this function because there is nothing + * different we would do if it failed */ + e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, + &phy_data); + phy_data &= ~IGP02E1000_PM_SPD; + e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, + phy_data); + } + + e1000_release_manageability(adapter); +} + +/** + * Dump the eeprom for users having checksum issues + **/ +static void e1000_dump_eeprom(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct ethtool_eeprom eeprom; + const struct ethtool_ops *ops = netdev->ethtool_ops; + u8 *data; + int i; + u16 csum_old, csum_new = 0; + + eeprom.len = ops->get_eeprom_len(netdev); + eeprom.offset = 0; + + data = kmalloc(eeprom.len, GFP_KERNEL); + if (!data) { + printk(KERN_ERR "Unable to allocate memory to dump EEPROM" + " data\n"); + return; + } + + ops->get_eeprom(netdev, &eeprom, data); + + csum_old = (data[EEPROM_CHECKSUM_REG * 2]) + + (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8); + for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2) + csum_new += data[i] + (data[i + 1] << 8); + csum_new = EEPROM_SUM - csum_new; + + printk(KERN_ERR "/*********************/\n"); + printk(KERN_ERR "Current EEPROM Checksum : 0x%04x\n", csum_old); + printk(KERN_ERR "Calculated : 0x%04x\n", csum_new); + + printk(KERN_ERR "Offset Values\n"); + printk(KERN_ERR "======== ======\n"); + print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0); + + printk(KERN_ERR "Include this output when contacting your support " + "provider.\n"); + printk(KERN_ERR "This is not a software error! Something bad " + "happened to your hardware or\n"); + printk(KERN_ERR "EEPROM image. Ignoring this " + "problem could result in further problems,\n"); + printk(KERN_ERR "possibly loss of data, corruption or system hangs!\n"); + printk(KERN_ERR "The MAC Address will be reset to 00:00:00:00:00:00, " + "which is invalid\n"); + printk(KERN_ERR "and requires you to set the proper MAC " + "address manually before continuing\n"); + printk(KERN_ERR "to enable this network device.\n"); + printk(KERN_ERR "Please inspect the EEPROM dump and report the issue " + "to your hardware vendor\n"); + printk(KERN_ERR "or Intel Customer Support.\n"); + printk(KERN_ERR "/*********************/\n"); + + kfree(data); +} + +/** + * e1000_is_need_ioport - determine if an adapter needs ioport resources or not + * @pdev: PCI device information struct + * + * Return true if an adapter needs ioport resources + **/ +static int e1000_is_need_ioport(struct pci_dev *pdev) +{ + switch (pdev->device) { + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541ER_LOM: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + return true; + default: + return false; + } +} + +static const struct net_device_ops e1000_netdev_ops = { + .ndo_open = e1000_open, + .ndo_stop = e1000_close, + .ndo_start_xmit = e1000_xmit_frame, + .ndo_get_stats = e1000_get_stats, + .ndo_set_rx_mode = e1000_set_rx_mode, + .ndo_set_mac_address = e1000_set_mac, + .ndo_tx_timeout = e1000_tx_timeout, + .ndo_change_mtu = e1000_change_mtu, + .ndo_do_ioctl = e1000_ioctl, + .ndo_validate_addr = eth_validate_addr, + + .ndo_vlan_rx_register = e1000_vlan_rx_register, + .ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = e1000_netpoll, +#endif +}; + +/** + * e1000_probe - Device Initialization Routine + * @pdev: PCI device information struct + * @ent: entry in e1000_pci_tbl + * + * Returns 0 on success, negative on failure + * + * e1000_probe initializes an adapter identified by a pci_dev structure. + * The OS initialization, configuring of the adapter private structure, + * and a hardware reset occur. + **/ +static int __devinit e1000_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *netdev; + struct e1000_adapter *adapter; + struct e1000_hw *hw; + + static int cards_found = 0; + static int global_quad_port_a = 0; /* global ksp3 port a indication */ + int i, err, pci_using_dac; + u16 eeprom_data = 0; + u16 eeprom_apme_mask = E1000_EEPROM_APME; + int bars, need_ioport; + + /* do not allocate ioport bars when not needed */ + need_ioport = e1000_is_need_ioport(pdev); + if (need_ioport) { + bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO); + err = pci_enable_device(pdev); + } else { + bars = pci_select_bars(pdev, IORESOURCE_MEM); + err = pci_enable_device_mem(pdev); + } + if (err) + return err; + + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && + !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { + pci_using_dac = 1; + } else { + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + E1000_ERR("No usable DMA configuration, " + "aborting\n"); + goto err_dma; + } + } + pci_using_dac = 0; + } + + err = pci_request_selected_regions(pdev, bars, e1000_driver_name); + if (err) + goto err_pci_reg; + + pci_set_master(pdev); + + err = -ENOMEM; + netdev = alloc_etherdev(sizeof(struct e1000_adapter)); + if (!netdev) + goto err_alloc_etherdev; + + SET_NETDEV_DEV(netdev, &pdev->dev); + + pci_set_drvdata(pdev, netdev); + adapter = netdev_priv(netdev); + adapter->netdev = netdev; + adapter->pdev = pdev; + adapter->msg_enable = (1 << debug) - 1; + adapter->bars = bars; + adapter->need_ioport = need_ioport; + + hw = &adapter->hw; + hw->back = adapter; + + err = -EIO; + hw->hw_addr = pci_ioremap_bar(pdev, BAR_0); + if (!hw->hw_addr) + goto err_ioremap; + + if (adapter->need_ioport) { + for (i = BAR_1; i <= BAR_5; i++) { + if (pci_resource_len(pdev, i) == 0) + continue; + if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { + hw->io_base = pci_resource_start(pdev, i); + break; + } + } + } + + netdev->netdev_ops = &e1000_netdev_ops; + e1000_set_ethtool_ops(netdev); + netdev->watchdog_timeo = 5 * HZ; + netif_napi_add(netdev, &adapter->napi, e1000_clean, 64); + + strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); + + adapter->bd_number = cards_found; + + /* setup the private structure */ + + err = e1000_sw_init(adapter); + if (err) + goto err_sw_init; + + err = -EIO; + /* Flash BAR mapping must happen after e1000_sw_init + * because it depends on mac_type */ + if ((hw->mac_type == e1000_ich8lan) && + (pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) { + hw->flash_address = pci_ioremap_bar(pdev, 1); + if (!hw->flash_address) + goto err_flashmap; + } + + if (e1000_check_phy_reset_block(hw)) + DPRINTK(PROBE, INFO, "PHY reset is blocked due to SOL/IDER session.\n"); + + if (hw->mac_type >= e1000_82543) { + netdev->features = NETIF_F_SG | + NETIF_F_HW_CSUM | + NETIF_F_HW_VLAN_TX | + NETIF_F_HW_VLAN_RX | + NETIF_F_HW_VLAN_FILTER; + if (hw->mac_type == e1000_ich8lan) + netdev->features &= ~NETIF_F_HW_VLAN_FILTER; + } + + if ((hw->mac_type >= e1000_82544) && + (hw->mac_type != e1000_82547)) + netdev->features |= NETIF_F_TSO; + + if (hw->mac_type > e1000_82547_rev_2) + netdev->features |= NETIF_F_TSO6; + if (pci_using_dac) + netdev->features |= NETIF_F_HIGHDMA; + + netdev->vlan_features |= NETIF_F_TSO; + netdev->vlan_features |= NETIF_F_TSO6; + netdev->vlan_features |= NETIF_F_HW_CSUM; + netdev->vlan_features |= NETIF_F_SG; + + adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw); + + /* initialize eeprom parameters */ + if (e1000_init_eeprom_params(hw)) { + E1000_ERR("EEPROM initialization failed\n"); + goto err_eeprom; + } + + /* before reading the EEPROM, reset the controller to + * put the device in a known good starting state */ + + e1000_reset_hw(hw); + + /* make sure the EEPROM is good */ + if (e1000_validate_eeprom_checksum(hw) < 0) { + DPRINTK(PROBE, ERR, "The EEPROM Checksum Is Not Valid\n"); + e1000_dump_eeprom(adapter); + /* + * set MAC address to all zeroes to invalidate and temporary + * disable this device for the user. This blocks regular + * traffic while still permitting ethtool ioctls from reaching + * the hardware as well as allowing the user to run the + * interface after manually setting a hw addr using + * `ip set address` + */ + memset(hw->mac_addr, 0, netdev->addr_len); + } else { + /* copy the MAC address out of the EEPROM */ + if (e1000_read_mac_addr(hw)) + DPRINTK(PROBE, ERR, "EEPROM Read Error\n"); + } + /* don't block initalization here due to bad MAC address */ + memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len); + memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len); + + if (!is_valid_ether_addr(netdev->perm_addr)) + DPRINTK(PROBE, ERR, "Invalid MAC Address\n"); + + e1000_get_bus_info(hw); + + init_timer(&adapter->tx_fifo_stall_timer); + adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall; + adapter->tx_fifo_stall_timer.data = (unsigned long)adapter; + + init_timer(&adapter->watchdog_timer); + adapter->watchdog_timer.function = &e1000_watchdog; + adapter->watchdog_timer.data = (unsigned long) adapter; + + init_timer(&adapter->phy_info_timer); + adapter->phy_info_timer.function = &e1000_update_phy_info; + adapter->phy_info_timer.data = (unsigned long)adapter; + + INIT_WORK(&adapter->reset_task, e1000_reset_task); + + e1000_check_options(adapter); + + /* Initial Wake on LAN setting + * If APM wake is enabled in the EEPROM, + * enable the ACPI Magic Packet filter + */ + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + break; + case e1000_82544: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data); + eeprom_apme_mask = E1000_EEPROM_82544_APM; + break; + case e1000_ich8lan: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL1_REG, 1, &eeprom_data); + eeprom_apme_mask = E1000_EEPROM_ICH8_APME; + break; + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82571: + case e1000_80003es2lan: + if (er32(STATUS) & E1000_STATUS_FUNC_1){ + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data); + break; + } + /* Fall Through */ + default: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data); + break; + } + if (eeprom_data & eeprom_apme_mask) + adapter->eeprom_wol |= E1000_WUFC_MAG; + + /* now that we have the eeprom settings, apply the special cases + * where the eeprom may be wrong or the board simply won't support + * wake on lan on a particular port */ + switch (pdev->device) { + case E1000_DEV_ID_82546GB_PCIE: + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82571EB_FIBER: + /* Wake events only supported on port A for dual fiber + * regardless of eeprom setting */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + case E1000_DEV_ID_82571EB_QUAD_COPPER: + case E1000_DEV_ID_82571EB_QUAD_FIBER: + case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE: + case E1000_DEV_ID_82571PT_QUAD_COPPER: + /* if quad port adapter, disable WoL on all but port A */ + if (global_quad_port_a != 0) + adapter->eeprom_wol = 0; + else + adapter->quad_port_a = 1; + /* Reset for multiple quad port adapters */ + if (++global_quad_port_a == 4) + global_quad_port_a = 0; + break; + } + + /* initialize the wol settings based on the eeprom settings */ + adapter->wol = adapter->eeprom_wol; + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + + /* print bus type/speed/width info */ + DPRINTK(PROBE, INFO, "(PCI%s:%s:%s) ", + ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : + (hw->bus_type == e1000_bus_type_pci_express ? " Express":"")), + ((hw->bus_speed == e1000_bus_speed_2500) ? "2.5Gb/s" : + (hw->bus_speed == e1000_bus_speed_133) ? "133MHz" : + (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" : + (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" : + (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"), + ((hw->bus_width == e1000_bus_width_64) ? "64-bit" : + (hw->bus_width == e1000_bus_width_pciex_4) ? "Width x4" : + (hw->bus_width == e1000_bus_width_pciex_1) ? "Width x1" : + "32-bit")); + + printk("%pM\n", netdev->dev_addr); + + if (hw->bus_type == e1000_bus_type_pci_express) { + DPRINTK(PROBE, WARNING, "This device (id %04x:%04x) will no " + "longer be supported by this driver in the future.\n", + pdev->vendor, pdev->device); + DPRINTK(PROBE, WARNING, "please use the \"e1000e\" " + "driver instead.\n"); + } + + /* reset the hardware with the new settings */ + e1000_reset(adapter); + + /* If the controller is 82573 and f/w is AMT, do not set + * DRV_LOAD until the interface is up. For all other cases, + * let the f/w know that the h/w is now under the control + * of the driver. */ + if (hw->mac_type != e1000_82573 || + !e1000_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + + // offer device to EtherCAT master module + adapter->ecdev = ecdev_offer(netdev, ec_poll, THIS_MODULE); + if (adapter->ecdev) { + if (ecdev_open(adapter->ecdev)) { + ecdev_withdraw(adapter->ecdev); + goto err_register; + } + } else { + strcpy(netdev->name, "eth%d"); + err = register_netdev(netdev); + if (err) + goto err_register; + + /* carrier off reporting is important to ethtool even BEFORE open */ + netif_carrier_off(netdev); + } + + DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n"); + + cards_found++; + return 0; + +err_register: + e1000_release_hw_control(adapter); +err_eeprom: + if (!e1000_check_phy_reset_block(hw)) + e1000_phy_hw_reset(hw); + + if (hw->flash_address) + iounmap(hw->flash_address); +err_flashmap: + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); +err_sw_init: + iounmap(hw->hw_addr); +err_ioremap: + free_netdev(netdev); +err_alloc_etherdev: + pci_release_selected_regions(pdev, bars); +err_pci_reg: +err_dma: + pci_disable_device(pdev); + return err; +} + +/** + * e1000_remove - Device Removal Routine + * @pdev: PCI device information struct + * + * e1000_remove is called by the PCI subsystem to alert the driver + * that it should release a PCI device. The could be caused by a + * Hot-Plug event, or because the driver is going to be removed from + * memory. + **/ + +static void __devexit e1000_remove(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + cancel_work_sync(&adapter->reset_task); + + e1000_release_manageability(adapter); + + /* Release control of h/w to f/w. If f/w is AMT enabled, this + * would have already happened in close and is redundant. */ + e1000_release_hw_control(adapter); + + if (adapter->ecdev) { + ecdev_close(adapter->ecdev); + ecdev_withdraw(adapter->ecdev); + } else { + unregister_netdev(netdev); + } + + if (!e1000_check_phy_reset_block(hw)) + e1000_phy_hw_reset(hw); + + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); + + iounmap(hw->hw_addr); + if (hw->flash_address) + iounmap(hw->flash_address); + pci_release_selected_regions(pdev, adapter->bars); + + free_netdev(netdev); + + pci_disable_device(pdev); +} + +/** + * e1000_sw_init - Initialize general software structures (struct e1000_adapter) + * @adapter: board private structure to initialize + * + * e1000_sw_init initializes the Adapter private data structure. + * Fields are initialized based on PCI device information and + * OS network device settings (MTU size). + **/ + +static int __devinit e1000_sw_init(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + + /* PCI config space info */ + + hw->vendor_id = pdev->vendor; + hw->device_id = pdev->device; + hw->subsystem_vendor_id = pdev->subsystem_vendor; + hw->subsystem_id = pdev->subsystem_device; + hw->revision_id = pdev->revision; + + pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word); + + adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; + hw->max_frame_size = netdev->mtu + + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE; + hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE; + + /* identify the MAC */ + + if (e1000_set_mac_type(hw)) { + DPRINTK(PROBE, ERR, "Unknown MAC Type\n"); + return -EIO; + } + + switch (hw->mac_type) { + default: + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + hw->phy_init_script = 1; + break; + } + + e1000_set_media_type(hw); + + hw->wait_autoneg_complete = false; + hw->tbi_compatibility_en = true; + hw->adaptive_ifs = true; + + /* Copper options */ + + if (hw->media_type == e1000_media_type_copper) { + hw->mdix = AUTO_ALL_MODES; + hw->disable_polarity_correction = false; + hw->master_slave = E1000_MASTER_SLAVE; + } + + adapter->num_tx_queues = 1; + adapter->num_rx_queues = 1; + + if (e1000_alloc_queues(adapter)) { + DPRINTK(PROBE, ERR, "Unable to allocate memory for queues\n"); + return -ENOMEM; + } + + /* Explicitly disable IRQ since the NIC can be in any state. */ + e1000_irq_disable(adapter); + + spin_lock_init(&adapter->stats_lock); + + set_bit(__E1000_DOWN, &adapter->flags); + + return 0; +} + +/** + * e1000_alloc_queues - Allocate memory for all rings + * @adapter: board private structure to initialize + * + * We allocate one ring per queue at run-time since we don't know the + * number of queues at compile-time. + **/ + +static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter) +{ + adapter->tx_ring = kcalloc(adapter->num_tx_queues, + sizeof(struct e1000_tx_ring), GFP_KERNEL); + if (!adapter->tx_ring) + return -ENOMEM; + + adapter->rx_ring = kcalloc(adapter->num_rx_queues, + sizeof(struct e1000_rx_ring), GFP_KERNEL); + if (!adapter->rx_ring) { + kfree(adapter->tx_ring); + return -ENOMEM; + } + + return E1000_SUCCESS; +} + +/** + * e1000_open - Called when a network interface is made active + * @netdev: network interface device structure + * + * Returns 0 on success, negative value on failure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). At this point all resources needed + * for transmit and receive operations are allocated, the interrupt + * handler is registered with the OS, the watchdog timer is started, + * and the stack is notified that the interface is ready. + **/ + +static int e1000_open(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int err; + + /* disallow open during test */ + if (test_bit(__E1000_TESTING, &adapter->flags)) + return -EBUSY; + + netif_carrier_off(netdev); + + /* allocate transmit descriptors */ + err = e1000_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* allocate receive descriptors */ + err = e1000_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + + e1000_power_up_phy(adapter); + + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) { + e1000_update_mng_vlan(adapter); + } + + /* If AMT is enabled, let the firmware know that the network + * interface is now open */ + if (hw->mac_type == e1000_82573 && + e1000_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + + /* before we allocate an interrupt, we must be ready to handle it. + * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt + * as soon as we call pci_request_irq, so we have to setup our + * clean_rx handler before we do so. */ + e1000_configure(adapter); + + err = e1000_request_irq(adapter); + if (err) + goto err_req_irq; + + /* From here on the code is the same as e1000_up() */ + clear_bit(__E1000_DOWN, &adapter->flags); + + napi_enable(&adapter->napi); + + e1000_irq_enable(adapter); + + netif_start_queue(netdev); + + /* fire a link status change interrupt to start the watchdog */ + ew32(ICS, E1000_ICS_LSC); + + return E1000_SUCCESS; + +err_req_irq: + e1000_release_hw_control(adapter); + e1000_power_down_phy(adapter); + e1000_free_all_rx_resources(adapter); +err_setup_rx: + e1000_free_all_tx_resources(adapter); +err_setup_tx: + e1000_reset(adapter); + + return err; +} + +/** + * e1000_close - Disables a network interface + * @netdev: network interface device structure + * + * Returns 0, this is not allowed to fail + * + * The close entry point is called when an interface is de-activated + * by the OS. The hardware is still under the drivers control, but + * needs to be disabled. A global MAC reset is issued to stop the + * hardware, and all transmit and receive resources are freed. + **/ + +static int e1000_close(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); + e1000_down(adapter); + e1000_power_down_phy(adapter); + e1000_free_irq(adapter); + + e1000_free_all_tx_resources(adapter); + e1000_free_all_rx_resources(adapter); + + /* kill manageability vlan ID if supported, but not if a vlan with + * the same ID is registered on the host OS (let 8021q kill it) */ + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + !(adapter->vlgrp && + vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) { + e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); + } + + /* If AMT is enabled, let the firmware know that the network + * interface is now closed */ + if (hw->mac_type == e1000_82573 && + e1000_check_mng_mode(hw)) + e1000_release_hw_control(adapter); + + return 0; +} + +/** + * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary + * @adapter: address of board private structure + * @start: address of beginning of memory + * @len: length of memory + **/ +static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start, + unsigned long len) +{ + struct e1000_hw *hw = &adapter->hw; + unsigned long begin = (unsigned long)start; + unsigned long end = begin + len; + + /* First rev 82545 and 82546 need to not allow any memory + * write location to cross 64k boundary due to errata 23 */ + if (hw->mac_type == e1000_82545 || + hw->mac_type == e1000_82546) { + return ((begin ^ (end - 1)) >> 16) != 0 ? false : true; + } + + return true; +} + +/** + * e1000_setup_tx_resources - allocate Tx resources (Descriptors) + * @adapter: board private structure + * @txdr: tx descriptor ring (for a specific queue) to setup + * + * Return 0 on success, negative on failure + **/ + +static int e1000_setup_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *txdr) +{ + struct pci_dev *pdev = adapter->pdev; + int size; + + size = sizeof(struct e1000_buffer) * txdr->count; + txdr->buffer_info = vmalloc(size); + if (!txdr->buffer_info) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the transmit descriptor ring\n"); + return -ENOMEM; + } + memset(txdr->buffer_info, 0, size); + + /* round up to nearest 4K */ + + txdr->size = txdr->count * sizeof(struct e1000_tx_desc); + txdr->size = ALIGN(txdr->size, 4096); + + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + if (!txdr->desc) { +setup_tx_desc_die: + vfree(txdr->buffer_info); + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the transmit descriptor ring\n"); + return -ENOMEM; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { + void *olddesc = txdr->desc; + dma_addr_t olddma = txdr->dma; + DPRINTK(TX_ERR, ERR, "txdr align check failed: %u bytes " + "at %p\n", txdr->size, txdr->desc); + /* Try again, without freeing the previous */ + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + /* Failed allocation, critical failure */ + if (!txdr->desc) { + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + goto setup_tx_desc_die; + } + + if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { + /* give up */ + pci_free_consistent(pdev, txdr->size, txdr->desc, + txdr->dma); + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate aligned memory " + "for the transmit descriptor ring\n"); + vfree(txdr->buffer_info); + return -ENOMEM; + } else { + /* Free old allocation, new allocation was successful */ + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + } + } + memset(txdr->desc, 0, txdr->size); + + txdr->next_to_use = 0; + txdr->next_to_clean = 0; + + return 0; +} + +/** + * e1000_setup_all_tx_resources - wrapper to allocate Tx resources + * (Descriptors) for all queues + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ + +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_tx_queues; i++) { + err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]); + if (err) { + DPRINTK(PROBE, ERR, + "Allocation for Tx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_tx_resources(adapter, + &adapter->tx_ring[i]); + break; + } + } + + return err; +} + +/** + * e1000_configure_tx - Configure 8254x Transmit Unit after Reset + * @adapter: board private structure + * + * Configure the Tx unit of the MAC after a reset. + **/ + +static void e1000_configure_tx(struct e1000_adapter *adapter) +{ + u64 tdba; + struct e1000_hw *hw = &adapter->hw; + u32 tdlen, tctl, tipg, tarc; + u32 ipgr1, ipgr2; + + /* Setup the HW Tx Head and Tail descriptor pointers */ + + switch (adapter->num_tx_queues) { + case 1: + default: + tdba = adapter->tx_ring[0].dma; + tdlen = adapter->tx_ring[0].count * + sizeof(struct e1000_tx_desc); + ew32(TDLEN, tdlen); + ew32(TDBAH, (tdba >> 32)); + ew32(TDBAL, (tdba & 0x00000000ffffffffULL)); + ew32(TDT, 0); + ew32(TDH, 0); + adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH); + adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT); + break; + } + + /* Set the default values for the Tx Inter Packet Gap timer */ + if (hw->mac_type <= e1000_82547_rev_2 && + (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes)) + tipg = DEFAULT_82543_TIPG_IPGT_FIBER; + else + tipg = DEFAULT_82543_TIPG_IPGT_COPPER; + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + tipg = DEFAULT_82542_TIPG_IPGT; + ipgr1 = DEFAULT_82542_TIPG_IPGR1; + ipgr2 = DEFAULT_82542_TIPG_IPGR2; + break; + case e1000_80003es2lan: + ipgr1 = DEFAULT_82543_TIPG_IPGR1; + ipgr2 = DEFAULT_80003ES2LAN_TIPG_IPGR2; + break; + default: + ipgr1 = DEFAULT_82543_TIPG_IPGR1; + ipgr2 = DEFAULT_82543_TIPG_IPGR2; + break; + } + tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT; + tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT; + ew32(TIPG, tipg); + + /* Set the Tx Interrupt Delay register */ + + ew32(TIDV, adapter->tx_int_delay); + if (hw->mac_type >= e1000_82540) + ew32(TADV, adapter->tx_abs_int_delay); + + /* Program the Transmit Control Register */ + + tctl = er32(TCTL); + tctl &= ~E1000_TCTL_CT; + tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | + (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); + + if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) { + tarc = er32(TARC0); + /* set the speed mode bit, we'll clear it if we're not at + * gigabit link later */ + tarc |= (1 << 21); + ew32(TARC0, tarc); + } else if (hw->mac_type == e1000_80003es2lan) { + tarc = er32(TARC0); + tarc |= 1; + ew32(TARC0, tarc); + tarc = er32(TARC1); + tarc |= 1; + ew32(TARC1, tarc); + } + + e1000_config_collision_dist(hw); + + /* Setup Transmit Descriptor Settings for eop descriptor */ + adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS; + + /* only set IDE if we are delaying interrupts using the timers */ + if (adapter->tx_int_delay) + adapter->txd_cmd |= E1000_TXD_CMD_IDE; + + if (hw->mac_type < e1000_82543) + adapter->txd_cmd |= E1000_TXD_CMD_RPS; + else + adapter->txd_cmd |= E1000_TXD_CMD_RS; + + /* Cache if we're 82544 running in PCI-X because we'll + * need this to apply a workaround later in the send path. */ + if (hw->mac_type == e1000_82544 && + hw->bus_type == e1000_bus_type_pcix) + adapter->pcix_82544 = 1; + + ew32(TCTL, tctl); + +} + +/** + * e1000_setup_rx_resources - allocate Rx resources (Descriptors) + * @adapter: board private structure + * @rxdr: rx descriptor ring (for a specific queue) to setup + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_setup_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rxdr) +{ + struct e1000_hw *hw = &adapter->hw; + struct pci_dev *pdev = adapter->pdev; + int size, desc_len; + + size = sizeof(struct e1000_buffer) * rxdr->count; + rxdr->buffer_info = vmalloc(size); + if (!rxdr->buffer_info) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the receive descriptor ring\n"); + return -ENOMEM; + } + memset(rxdr->buffer_info, 0, size); + + if (hw->mac_type <= e1000_82547_rev_2) + desc_len = sizeof(struct e1000_rx_desc); + else + desc_len = sizeof(union e1000_rx_desc_packet_split); + + /* Round up to nearest 4K */ + + rxdr->size = rxdr->count * desc_len; + rxdr->size = ALIGN(rxdr->size, 4096); + + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + + if (!rxdr->desc) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the receive descriptor ring\n"); +setup_rx_desc_die: + vfree(rxdr->buffer_info); + return -ENOMEM; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { + void *olddesc = rxdr->desc; + dma_addr_t olddma = rxdr->dma; + DPRINTK(RX_ERR, ERR, "rxdr align check failed: %u bytes " + "at %p\n", rxdr->size, rxdr->desc); + /* Try again, without freeing the previous */ + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + /* Failed allocation, critical failure */ + if (!rxdr->desc) { + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate memory " + "for the receive descriptor ring\n"); + goto setup_rx_desc_die; + } + + if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { + /* give up */ + pci_free_consistent(pdev, rxdr->size, rxdr->desc, + rxdr->dma); + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate aligned memory " + "for the receive descriptor ring\n"); + goto setup_rx_desc_die; + } else { + /* Free old allocation, new allocation was successful */ + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + } + } + memset(rxdr->desc, 0, rxdr->size); + + rxdr->next_to_clean = 0; + rxdr->next_to_use = 0; + + return 0; +} + +/** + * e1000_setup_all_rx_resources - wrapper to allocate Rx resources + * (Descriptors) for all queues + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ + +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_rx_queues; i++) { + err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]); + if (err) { + DPRINTK(PROBE, ERR, + "Allocation for Rx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_rx_resources(adapter, + &adapter->rx_ring[i]); + break; + } + } + + return err; +} + +/** + * e1000_setup_rctl - configure the receive control registers + * @adapter: Board private structure + **/ +static void e1000_setup_rctl(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + + rctl = er32(RCTL); + + rctl &= ~(3 << E1000_RCTL_MO_SHIFT); + + rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | + E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); + + if (hw->tbi_compatibility_on == 1) + rctl |= E1000_RCTL_SBP; + else + rctl &= ~E1000_RCTL_SBP; + + if (adapter->netdev->mtu <= ETH_DATA_LEN) + rctl &= ~E1000_RCTL_LPE; + else + rctl |= E1000_RCTL_LPE; + + /* Setup buffer sizes */ + rctl &= ~E1000_RCTL_SZ_4096; + rctl |= E1000_RCTL_BSEX; + switch (adapter->rx_buffer_len) { + case E1000_RXBUFFER_256: + rctl |= E1000_RCTL_SZ_256; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_512: + rctl |= E1000_RCTL_SZ_512; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_1024: + rctl |= E1000_RCTL_SZ_1024; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_2048: + default: + rctl |= E1000_RCTL_SZ_2048; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_4096: + rctl |= E1000_RCTL_SZ_4096; + break; + case E1000_RXBUFFER_8192: + rctl |= E1000_RCTL_SZ_8192; + break; + case E1000_RXBUFFER_16384: + rctl |= E1000_RCTL_SZ_16384; + break; + } + + ew32(RCTL, rctl); +} + +/** + * e1000_configure_rx - Configure 8254x Receive Unit after Reset + * @adapter: board private structure + * + * Configure the Rx unit of the MAC after a reset. + **/ + +static void e1000_configure_rx(struct e1000_adapter *adapter) +{ + u64 rdba; + struct e1000_hw *hw = &adapter->hw; + u32 rdlen, rctl, rxcsum, ctrl_ext; + + rdlen = adapter->rx_ring[0].count * + sizeof(struct e1000_rx_desc); + adapter->clean_rx = e1000_clean_rx_irq; + adapter->alloc_rx_buf = e1000_alloc_rx_buffers; + + /* disable receives while setting up the descriptors */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + + /* set the Receive Delay Timer Register */ + ew32(RDTR, adapter->rx_int_delay); + + if (hw->mac_type >= e1000_82540) { + ew32(RADV, adapter->rx_abs_int_delay); + if (adapter->itr_setting != 0) + ew32(ITR, 1000000000 / (adapter->itr * 256)); + } + + if (hw->mac_type >= e1000_82571) { + ctrl_ext = er32(CTRL_EXT); + /* Reset delay timers after every interrupt */ + ctrl_ext |= E1000_CTRL_EXT_INT_TIMER_CLR; + /* Auto-Mask interrupts upon ICR access */ + ctrl_ext |= E1000_CTRL_EXT_IAME; + ew32(IAM, 0xffffffff); + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + } + + /* Setup the HW Rx Head and Tail Descriptor Pointers and + * the Base and Length of the Rx Descriptor Ring */ + switch (adapter->num_rx_queues) { + case 1: + default: + rdba = adapter->rx_ring[0].dma; + ew32(RDLEN, rdlen); + ew32(RDBAH, (rdba >> 32)); + ew32(RDBAL, (rdba & 0x00000000ffffffffULL)); + ew32(RDT, 0); + ew32(RDH, 0); + adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH); + adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT); + break; + } + + /* Enable 82543 Receive Checksum Offload for TCP and UDP */ + if (hw->mac_type >= e1000_82543) { + rxcsum = er32(RXCSUM); + if (adapter->rx_csum) + rxcsum |= E1000_RXCSUM_TUOFL; + else + /* don't need to clear IPPCSE as it defaults to 0 */ + rxcsum &= ~E1000_RXCSUM_TUOFL; + ew32(RXCSUM, rxcsum); + } + + /* Enable Receives */ + ew32(RCTL, rctl); +} + +/** + * e1000_free_tx_resources - Free Tx Resources per Queue + * @adapter: board private structure + * @tx_ring: Tx descriptor ring for a specific queue + * + * Free all transmit software resources + **/ + +static void e1000_free_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct pci_dev *pdev = adapter->pdev; + + e1000_clean_tx_ring(adapter, tx_ring); + + vfree(tx_ring->buffer_info); + tx_ring->buffer_info = NULL; + + pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma); + + tx_ring->desc = NULL; +} + +/** + * e1000_free_all_tx_resources - Free Tx Resources for All Queues + * @adapter: board private structure + * + * Free all transmit software resources + **/ + +void e1000_free_all_tx_resources(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + e1000_free_tx_resources(adapter, &adapter->tx_ring[i]); +} + +static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter, + struct e1000_buffer *buffer_info) +{ + if (adapter->ecdev) + return; + + buffer_info->dma = 0; + if (buffer_info->skb) { + skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb, + DMA_TO_DEVICE); + dev_kfree_skb_any(buffer_info->skb); + buffer_info->skb = NULL; + } + buffer_info->time_stamp = 0; + /* buffer_info must be completely set up in the transmit path */ +} + +/** + * e1000_clean_tx_ring - Free Tx Buffers + * @adapter: board private structure + * @tx_ring: ring to be cleaned + **/ + +static void e1000_clean_tx_ring(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_buffer *buffer_info; + unsigned long size; + unsigned int i; + + /* Free all the Tx ring sk_buffs */ + + for (i = 0; i < tx_ring->count; i++) { + buffer_info = &tx_ring->buffer_info[i]; + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + } + + size = sizeof(struct e1000_buffer) * tx_ring->count; + memset(tx_ring->buffer_info, 0, size); + + /* Zero out the descriptor ring */ + + memset(tx_ring->desc, 0, tx_ring->size); + + tx_ring->next_to_use = 0; + tx_ring->next_to_clean = 0; + tx_ring->last_tx_tso = 0; + + writel(0, hw->hw_addr + tx_ring->tdh); + writel(0, hw->hw_addr + tx_ring->tdt); +} + +/** + * e1000_clean_all_tx_rings - Free Tx Buffers for all queues + * @adapter: board private structure + **/ + +static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]); +} + +/** + * e1000_free_rx_resources - Free Rx Resources + * @adapter: board private structure + * @rx_ring: ring to clean the resources from + * + * Free all receive software resources + **/ + +static void e1000_free_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring) +{ + struct pci_dev *pdev = adapter->pdev; + + e1000_clean_rx_ring(adapter, rx_ring); + + vfree(rx_ring->buffer_info); + rx_ring->buffer_info = NULL; + + pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma); + + rx_ring->desc = NULL; +} + +/** + * e1000_free_all_rx_resources - Free Rx Resources for All Queues + * @adapter: board private structure + * + * Free all receive software resources + **/ + +void e1000_free_all_rx_resources(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + e1000_free_rx_resources(adapter, &adapter->rx_ring[i]); +} + +/** + * e1000_clean_rx_ring - Free Rx Buffers per Queue + * @adapter: board private structure + * @rx_ring: ring to free buffers from + **/ + +static void e1000_clean_rx_ring(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_buffer *buffer_info; + struct pci_dev *pdev = adapter->pdev; + unsigned long size; + unsigned int i; + + /* Free all the Rx ring sk_buffs */ + for (i = 0; i < rx_ring->count; i++) { + buffer_info = &rx_ring->buffer_info[i]; + if (buffer_info->dma) { + pci_unmap_single(pdev, + buffer_info->dma, + buffer_info->length, + PCI_DMA_FROMDEVICE); + } + + buffer_info->dma = 0; + + if (buffer_info->skb) { + dev_kfree_skb(buffer_info->skb); + buffer_info->skb = NULL; + } + } + + size = sizeof(struct e1000_buffer) * rx_ring->count; + memset(rx_ring->buffer_info, 0, size); + + /* Zero out the descriptor ring */ + + memset(rx_ring->desc, 0, rx_ring->size); + + rx_ring->next_to_clean = 0; + rx_ring->next_to_use = 0; + + writel(0, hw->hw_addr + rx_ring->rdh); + writel(0, hw->hw_addr + rx_ring->rdt); +} + +/** + * e1000_clean_all_rx_rings - Free Rx Buffers for all queues + * @adapter: board private structure + **/ + +static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]); +} + +/* The 82542 2.0 (revision 2) needs to have the receive unit in reset + * and memory write and invalidate disabled for certain operations + */ +static void e1000_enter_82542_rst(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl; + + e1000_pci_clear_mwi(hw); + + rctl = er32(RCTL); + rctl |= E1000_RCTL_RST; + ew32(RCTL, rctl); + E1000_WRITE_FLUSH(); + mdelay(5); + + if (!adapter->ecdev && netif_running(netdev)) + e1000_clean_all_rx_rings(adapter); +} + +static void e1000_leave_82542_rst(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl; + + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_RST; + ew32(RCTL, rctl); + E1000_WRITE_FLUSH(); + mdelay(5); + + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + + if (!adapter->netdev && netif_running(netdev)) { + /* No need to loop, because 82542 supports only 1 queue */ + struct e1000_rx_ring *ring = &adapter->rx_ring[0]; + e1000_configure_rx(adapter); + if (adapter->ecdev) { + /* fill rx ring completely! */ + adapter->alloc_rx_buf(adapter, ring, ring->count); + } else { + /* this one leaves the last ring element unallocated! */ + adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring)); + } + + } +} + +/** + * e1000_set_mac - Change the Ethernet Address of the NIC + * @netdev: network interface device structure + * @p: pointer to an address structure + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_set_mac(struct net_device *netdev, void *p) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + /* 82542 2.0 needs to be in reset to write receive address registers */ + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_enter_82542_rst(adapter); + + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); + memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len); + + e1000_rar_set(hw, hw->mac_addr, 0); + + /* With 82571 controllers, LAA may be overwritten (with the default) + * due to controller reset from the other port. */ + if (hw->mac_type == e1000_82571) { + /* activate the work around */ + hw->laa_is_present = 1; + + /* Hold a copy of the LAA in RAR[14] This is done so that + * between the time RAR[0] gets clobbered and the time it + * gets fixed (in e1000_watchdog), the actual LAA is in one + * of the RARs and no incoming packets directed to this port + * are dropped. Eventaully the LAA will be in RAR[0] and + * RAR[14] */ + e1000_rar_set(hw, hw->mac_addr, + E1000_RAR_ENTRIES - 1); + } + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_leave_82542_rst(adapter); + + return 0; +} + +/** + * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set + * @netdev: network interface device structure + * + * The set_rx_mode entry point is called whenever the unicast or multicast + * address lists or the network interface flags are updated. This routine is + * responsible for configuring the hardware for proper unicast, multicast, + * promiscuous mode, and all-multi behavior. + **/ + +static void e1000_set_rx_mode(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct netdev_hw_addr *ha; + bool use_uc = false; + struct dev_addr_list *mc_ptr; + u32 rctl; + u32 hash_value; + int i, rar_entries = E1000_RAR_ENTRIES; + int mta_reg_count = (hw->mac_type == e1000_ich8lan) ? + E1000_NUM_MTA_REGISTERS_ICH8LAN : + E1000_NUM_MTA_REGISTERS; + u32 *mcarray = kcalloc(mta_reg_count, sizeof(u32), GFP_ATOMIC); + + if (!mcarray) { + DPRINTK(PROBE, ERR, "memory allocation failed\n"); + return; + } + + if (hw->mac_type == e1000_ich8lan) + rar_entries = E1000_RAR_ENTRIES_ICH8LAN; + + /* reserve RAR[14] for LAA over-write work-around */ + if (hw->mac_type == e1000_82571) + rar_entries--; + + /* Check for Promiscuous and All Multicast modes */ + + rctl = er32(RCTL); + + if (netdev->flags & IFF_PROMISC) { + rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); + rctl &= ~E1000_RCTL_VFE; + } else { + if (netdev->flags & IFF_ALLMULTI) { + rctl |= E1000_RCTL_MPE; + } else { + rctl &= ~E1000_RCTL_MPE; + } + if (adapter->hw.mac_type != e1000_ich8lan) + rctl |= E1000_RCTL_VFE; + } + + if (netdev->uc.count > rar_entries - 1) { + rctl |= E1000_RCTL_UPE; + } else if (!(netdev->flags & IFF_PROMISC)) { + rctl &= ~E1000_RCTL_UPE; + use_uc = true; + } + + ew32(RCTL, rctl); + + /* 82542 2.0 needs to be in reset to write receive address registers */ + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_enter_82542_rst(adapter); + + /* load the first 14 addresses into the exact filters 1-14. Unicast + * addresses take precedence to avoid disabling unicast filtering + * when possible. + * + * RAR 0 is used for the station MAC adddress + * if there are not 14 addresses, go ahead and clear the filters + * -- with 82571 controllers only 0-13 entries are filled here + */ + i = 1; + if (use_uc) + list_for_each_entry(ha, &netdev->uc.list, list) { + if (i == rar_entries) + break; + e1000_rar_set(hw, ha->addr, i++); + } + + WARN_ON(i == rar_entries); + + mc_ptr = netdev->mc_list; + + for (; i < rar_entries; i++) { + if (mc_ptr) { + e1000_rar_set(hw, mc_ptr->da_addr, i); + mc_ptr = mc_ptr->next; + } else { + E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0); + E1000_WRITE_FLUSH(); + } + } + + /* load any remaining addresses into the hash table */ + + for (; mc_ptr; mc_ptr = mc_ptr->next) { + u32 hash_reg, hash_bit, mta; + hash_value = e1000_hash_mc_addr(hw, mc_ptr->da_addr); + hash_reg = (hash_value >> 5) & 0x7F; + hash_bit = hash_value & 0x1F; + mta = (1 << hash_bit); + mcarray[hash_reg] |= mta; + } + + /* write the hash table completely, write from bottom to avoid + * both stupid write combining chipsets, and flushing each write */ + for (i = mta_reg_count - 1; i >= 0 ; i--) { + /* + * If we are on an 82544 has an errata where writing odd + * offsets overwrites the previous even offset, but writing + * backwards over the range solves the issue by always + * writing the odd offset first + */ + E1000_WRITE_REG_ARRAY(hw, MTA, i, mcarray[i]); + } + E1000_WRITE_FLUSH(); + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_leave_82542_rst(adapter); + + kfree(mcarray); +} + +/* Need to wait a few seconds after link up to get diagnostic information from + * the phy */ + +static void e1000_update_phy_info(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + e1000_phy_get_info(hw, &adapter->phy_info); +} + +/** + * e1000_82547_tx_fifo_stall - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ + +static void e1000_82547_tx_fifo_stall(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 tctl; + + if (atomic_read(&adapter->tx_fifo_stall)) { + if ((er32(TDT) == er32(TDH)) && + (er32(TDFT) == er32(TDFH)) && + (er32(TDFTS) == er32(TDFHS))) { + tctl = er32(TCTL); + ew32(TCTL, tctl & ~E1000_TCTL_EN); + ew32(TDFT, adapter->tx_head_addr); + ew32(TDFH, adapter->tx_head_addr); + ew32(TDFTS, adapter->tx_head_addr); + ew32(TDFHS, adapter->tx_head_addr); + ew32(TCTL, tctl); + E1000_WRITE_FLUSH(); + + adapter->tx_fifo_head = 0; + atomic_set(&adapter->tx_fifo_stall, 0); + if (!adapter->ecdev) + netif_wake_queue(netdev); + } else { + if (!adapter->ecdev) + mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1); + } + } +} + +/** + * e1000_watchdog - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ +static void e1000_watchdog(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct e1000_tx_ring *txdr = adapter->tx_ring; + u32 link, tctl; + s32 ret_val; + + ret_val = e1000_check_for_link(hw); + if ((ret_val == E1000_ERR_PHY) && + (hw->phy_type == e1000_phy_igp_3) && + (er32(CTRL) & E1000_PHY_CTRL_GBE_DISABLE)) { + /* See e1000_kumeran_lock_loss_workaround() */ + DPRINTK(LINK, INFO, + "Gigabit has been disabled, downgrading speed\n"); + } + + if (hw->mac_type == e1000_82573) { + e1000_enable_tx_pkt_filtering(hw); + if (adapter->mng_vlan_id != hw->mng_cookie.vlan_id) + e1000_update_mng_vlan(adapter); + } + + if ((hw->media_type == e1000_media_type_internal_serdes) && + !(er32(TXCW) & E1000_TXCW_ANE)) + link = !hw->serdes_link_down; + else + link = er32(STATUS) & E1000_STATUS_LU; + + if (link) { + if ( (adapter->ecdev && !ecdev_get_link(adapter->ecdev)) + || (!adapter->ecdev && !netif_carrier_ok(netdev)) ) { + u32 ctrl; + bool txb2b = true; + e1000_get_speed_and_duplex(hw, + &adapter->link_speed, + &adapter->link_duplex); + + ctrl = er32(CTRL); + printk(KERN_INFO "e1000: %s NIC Link is Up %d Mbps %s, " + "Flow Control: %s\n", + netdev->name, + adapter->link_speed, + adapter->link_duplex == FULL_DUPLEX ? + "Full Duplex" : "Half Duplex", + ((ctrl & E1000_CTRL_TFCE) && (ctrl & + E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl & + E1000_CTRL_RFCE) ? "RX" : ((ctrl & + E1000_CTRL_TFCE) ? "TX" : "None" ))); + + /* tweak tx_queue_len according to speed/duplex + * and adjust the timeout factor */ + netdev->tx_queue_len = adapter->tx_queue_len; + adapter->tx_timeout_factor = 1; + switch (adapter->link_speed) { + case SPEED_10: + txb2b = false; + netdev->tx_queue_len = 10; + adapter->tx_timeout_factor = 8; + break; + case SPEED_100: + txb2b = false; + netdev->tx_queue_len = 100; + /* maybe add some timeout factor ? */ + break; + } + + if ((hw->mac_type == e1000_82571 || + hw->mac_type == e1000_82572) && + !txb2b) { + u32 tarc0; + tarc0 = er32(TARC0); + tarc0 &= ~(1 << 21); + ew32(TARC0, tarc0); + } + + /* disable TSO for pcie and 10/100 speeds, to avoid + * some hardware issues */ + if (!adapter->tso_force && + hw->bus_type == e1000_bus_type_pci_express){ + switch (adapter->link_speed) { + case SPEED_10: + case SPEED_100: + DPRINTK(PROBE,INFO, + "10/100 speed: disabling TSO\n"); + netdev->features &= ~NETIF_F_TSO; + netdev->features &= ~NETIF_F_TSO6; + break; + case SPEED_1000: + netdev->features |= NETIF_F_TSO; + netdev->features |= NETIF_F_TSO6; + break; + default: + /* oops */ + break; + } + } + + /* enable transmits in the hardware, need to do this + * after setting TARC0 */ + tctl = er32(TCTL); + tctl |= E1000_TCTL_EN; + ew32(TCTL, tctl); + + if (adapter->ecdev) { + ecdev_set_link(adapter->ecdev, 1); + } else { + netif_carrier_on(netdev); + mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); + } + adapter->smartspeed = 0; + } else { + /* make sure the receive unit is started */ + if (hw->rx_needs_kicking) { + u32 rctl = er32(RCTL); + ew32(RCTL, rctl | E1000_RCTL_EN); + } + } + } else { + if ( (adapter->ecdev && ecdev_get_link(adapter->ecdev)) + || (!adapter->ecdev && netif_carrier_ok(netdev)) ) { + adapter->link_speed = 0; + adapter->link_duplex = 0; + printk(KERN_INFO "e1000: %s NIC Link is Down\n", + netdev->name); + if (adapter->ecdev) { + ecdev_set_link(adapter->ecdev, 0); + } else { + netif_carrier_off(netdev); + mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); + } + + /* 80003ES2LAN workaround-- + * For packet buffer work-around on link down event; + * disable receives in the ISR and + * reset device here in the watchdog + */ + if (hw->mac_type == e1000_80003es2lan) + /* reset device */ + schedule_work(&adapter->reset_task); + } + + e1000_smartspeed(adapter); + } + + e1000_update_stats(adapter); + + hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old; + adapter->tpt_old = adapter->stats.tpt; + hw->collision_delta = adapter->stats.colc - adapter->colc_old; + adapter->colc_old = adapter->stats.colc; + + adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old; + adapter->gorcl_old = adapter->stats.gorcl; + adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old; + adapter->gotcl_old = adapter->stats.gotcl; + + e1000_update_adaptive(hw); + + if (!adapter->ecdev && !netif_carrier_ok(netdev)) { + if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) { + /* We've lost link, so the controller stops DMA, + * but we've got queued Tx work that's never going + * to get done, so reset controller to flush Tx. + * (Do the reset outside of interrupt context). */ + adapter->tx_timeout_count++; + schedule_work(&adapter->reset_task); + /* return immediately since reset is imminent */ + return; + } + } + + /* Cause software interrupt to ensure rx ring is cleaned */ + ew32(ICS, E1000_ICS_RXDMT0); + + /* Force detection of hung controller every watchdog period */ + if (!adapter->ecdev) adapter->detect_tx_hung = true; + + /* With 82571 controllers, LAA may be overwritten due to controller + * reset from the other port. Set the appropriate LAA in RAR[0] */ + if (hw->mac_type == e1000_82571 && hw->laa_is_present) + e1000_rar_set(hw, hw->mac_addr, 0); + + /* Reset the timer */ + if (!adapter->ecdev) + mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 2 * HZ)); +} + +enum latency_range { + lowest_latency = 0, + low_latency = 1, + bulk_latency = 2, + latency_invalid = 255 +}; + +/** + * e1000_update_itr - update the dynamic ITR value based on statistics + * Stores a new ITR value based on packets and byte + * counts during the last interrupt. The advantage of per interrupt + * computation is faster updates and more accurate ITR for the current + * traffic pattern. Constants in this function were computed + * based on theoretical maximum wire speed and thresholds were set based + * on testing data as well as attempting to minimize response time + * while increasing bulk throughput. + * this functionality is controlled by the InterruptThrottleRate module + * parameter (see e1000_param.c) + * @adapter: pointer to adapter + * @itr_setting: current adapter->itr + * @packets: the number of packets during this measurement interval + * @bytes: the number of bytes during this measurement interval + **/ +static unsigned int e1000_update_itr(struct e1000_adapter *adapter, + u16 itr_setting, int packets, int bytes) +{ + unsigned int retval = itr_setting; + struct e1000_hw *hw = &adapter->hw; + + if (unlikely(hw->mac_type < e1000_82540)) + goto update_itr_done; + + if (packets == 0) + goto update_itr_done; + + switch (itr_setting) { + case lowest_latency: + /* jumbo frames get bulk treatment*/ + if (bytes/packets > 8000) + retval = bulk_latency; + else if ((packets < 5) && (bytes > 512)) + retval = low_latency; + break; + case low_latency: /* 50 usec aka 20000 ints/s */ + if (bytes > 10000) { + /* jumbo frames need bulk latency setting */ + if (bytes/packets > 8000) + retval = bulk_latency; + else if ((packets < 10) || ((bytes/packets) > 1200)) + retval = bulk_latency; + else if ((packets > 35)) + retval = lowest_latency; + } else if (bytes/packets > 2000) + retval = bulk_latency; + else if (packets <= 2 && bytes < 512) + retval = lowest_latency; + break; + case bulk_latency: /* 250 usec aka 4000 ints/s */ + if (bytes > 25000) { + if (packets > 35) + retval = low_latency; + } else if (bytes < 6000) { + retval = low_latency; + } + break; + } + +update_itr_done: + return retval; +} + +static void e1000_set_itr(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 current_itr; + u32 new_itr = adapter->itr; + + if (unlikely(hw->mac_type < e1000_82540)) + return; + + /* for non-gigabit speeds, just fix the interrupt rate at 4000 */ + if (unlikely(adapter->link_speed != SPEED_1000)) { + current_itr = 0; + new_itr = 4000; + goto set_itr_now; + } + + adapter->tx_itr = e1000_update_itr(adapter, + adapter->tx_itr, + adapter->total_tx_packets, + adapter->total_tx_bytes); + /* conservative mode (itr 3) eliminates the lowest_latency setting */ + if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency) + adapter->tx_itr = low_latency; + + adapter->rx_itr = e1000_update_itr(adapter, + adapter->rx_itr, + adapter->total_rx_packets, + adapter->total_rx_bytes); + /* conservative mode (itr 3) eliminates the lowest_latency setting */ + if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency) + adapter->rx_itr = low_latency; + + current_itr = max(adapter->rx_itr, adapter->tx_itr); + + switch (current_itr) { + /* counts and packets in update_itr are dependent on these numbers */ + case lowest_latency: + new_itr = 70000; + break; + case low_latency: + new_itr = 20000; /* aka hwitr = ~200 */ + break; + case bulk_latency: + new_itr = 4000; + break; + default: + break; + } + +set_itr_now: + if (new_itr != adapter->itr) { + /* this attempts to bias the interrupt rate towards Bulk + * by adding intermediate steps when interrupt rate is + * increasing */ + new_itr = new_itr > adapter->itr ? + min(adapter->itr + (new_itr >> 2), new_itr) : + new_itr; + adapter->itr = new_itr; + ew32(ITR, 1000000000 / (new_itr * 256)); + } + + return; +} + +#define E1000_TX_FLAGS_CSUM 0x00000001 +#define E1000_TX_FLAGS_VLAN 0x00000002 +#define E1000_TX_FLAGS_TSO 0x00000004 +#define E1000_TX_FLAGS_IPV4 0x00000008 +#define E1000_TX_FLAGS_VLAN_MASK 0xffff0000 +#define E1000_TX_FLAGS_VLAN_SHIFT 16 + +static int e1000_tso(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, struct sk_buff *skb) +{ + struct e1000_context_desc *context_desc; + struct e1000_buffer *buffer_info; + unsigned int i; + u32 cmd_length = 0; + u16 ipcse = 0, tucse, mss; + u8 ipcss, ipcso, tucss, tucso, hdr_len; + int err; + + if (skb_is_gso(skb)) { + if (skb_header_cloned(skb)) { + err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + if (err) + return err; + } + + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + mss = skb_shinfo(skb)->gso_size; + if (skb->protocol == htons(ETH_P_IP)) { + struct iphdr *iph = ip_hdr(skb); + iph->tot_len = 0; + iph->check = 0; + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, + 0); + cmd_length = E1000_TXD_CMD_IP; + ipcse = skb_transport_offset(skb) - 1; + } else if (skb->protocol == htons(ETH_P_IPV6)) { + ipv6_hdr(skb)->payload_len = 0; + tcp_hdr(skb)->check = + ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, + 0, IPPROTO_TCP, 0); + ipcse = 0; + } + ipcss = skb_network_offset(skb); + ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data; + tucss = skb_transport_offset(skb); + tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data; + tucse = 0; + + cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE | + E1000_TXD_CMD_TCP | (skb->len - (hdr_len))); + + i = tx_ring->next_to_use; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; + + context_desc->lower_setup.ip_fields.ipcss = ipcss; + context_desc->lower_setup.ip_fields.ipcso = ipcso; + context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse); + context_desc->upper_setup.tcp_fields.tucss = tucss; + context_desc->upper_setup.tcp_fields.tucso = tucso; + context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse); + context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss); + context_desc->tcp_seg_setup.fields.hdr_len = hdr_len; + context_desc->cmd_and_length = cpu_to_le32(cmd_length); + + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + if (++i == tx_ring->count) i = 0; + tx_ring->next_to_use = i; + + return true; + } + return false; +} + +static bool e1000_tx_csum(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, struct sk_buff *skb) +{ + struct e1000_context_desc *context_desc; + struct e1000_buffer *buffer_info; + unsigned int i; + u8 css; + u32 cmd_len = E1000_TXD_CMD_DEXT; + + if (skb->ip_summed != CHECKSUM_PARTIAL) + return false; + + switch (skb->protocol) { + case cpu_to_be16(ETH_P_IP): + if (ip_hdr(skb)->protocol == IPPROTO_TCP) + cmd_len |= E1000_TXD_CMD_TCP; + break; + case cpu_to_be16(ETH_P_IPV6): + /* XXX not handling all IPV6 headers */ + if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) + cmd_len |= E1000_TXD_CMD_TCP; + break; + default: + if (unlikely(net_ratelimit())) + DPRINTK(DRV, WARNING, + "checksum_partial proto=%x!\n", skb->protocol); + break; + } + + css = skb_transport_offset(skb); + + i = tx_ring->next_to_use; + buffer_info = &tx_ring->buffer_info[i]; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + + context_desc->lower_setup.ip_config = 0; + context_desc->upper_setup.tcp_fields.tucss = css; + context_desc->upper_setup.tcp_fields.tucso = + css + skb->csum_offset; + context_desc->upper_setup.tcp_fields.tucse = 0; + context_desc->tcp_seg_setup.data = 0; + context_desc->cmd_and_length = cpu_to_le32(cmd_len); + + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + if (unlikely(++i == tx_ring->count)) i = 0; + tx_ring->next_to_use = i; + + return true; +} + +#define E1000_MAX_TXD_PWR 12 +#define E1000_MAX_DATA_PER_TXD (1<hw; + struct e1000_buffer *buffer_info; + unsigned int len = skb_headlen(skb); + unsigned int offset, size, count = 0, i; + unsigned int f; + dma_addr_t *map; + + i = tx_ring->next_to_use; + + if (skb_dma_map(&adapter->pdev->dev, skb, DMA_TO_DEVICE)) { + dev_err(&adapter->pdev->dev, "TX DMA map failed\n"); + return 0; + } + + map = skb_shinfo(skb)->dma_maps; + offset = 0; + + while (len) { + buffer_info = &tx_ring->buffer_info[i]; + size = min(len, max_per_txd); + /* Workaround for Controller erratum -- + * descriptor for non-tso packet in a linear SKB that follows a + * tso gets written back prematurely before the data is fully + * DMA'd to the controller */ + if (!skb->data_len && tx_ring->last_tx_tso && + !skb_is_gso(skb)) { + tx_ring->last_tx_tso = 0; + size -= 4; + } + + /* Workaround for premature desc write-backs + * in TSO mode. Append 4-byte sentinel desc */ + if (unlikely(mss && !nr_frags && size == len && size > 8)) + size -= 4; + /* work-around for errata 10 and it applies + * to all controllers in PCI-X mode + * The fix is to make sure that the first descriptor of a + * packet is smaller than 2048 - 16 - 16 (or 2016) bytes + */ + if (unlikely((hw->bus_type == e1000_bus_type_pcix) && + (size > 2015) && count == 0)) + size = 2015; + + /* Workaround for potential 82544 hang in PCI-X. Avoid + * terminating buffers within evenly-aligned dwords. */ + if (unlikely(adapter->pcix_82544 && + !((unsigned long)(skb->data + offset + size - 1) & 4) && + size > 4)) + size -= 4; + + buffer_info->length = size; + buffer_info->dma = skb_shinfo(skb)->dma_head + offset; + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + len -= size; + offset += size; + count++; + if (len) { + i++; + if (unlikely(i == tx_ring->count)) + i = 0; + } + } + + for (f = 0; f < nr_frags; f++) { + struct skb_frag_struct *frag; + + frag = &skb_shinfo(skb)->frags[f]; + len = frag->size; + offset = 0; + + while (len) { + i++; + if (unlikely(i == tx_ring->count)) + i = 0; + + buffer_info = &tx_ring->buffer_info[i]; + size = min(len, max_per_txd); + /* Workaround for premature desc write-backs + * in TSO mode. Append 4-byte sentinel desc */ + if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8)) + size -= 4; + /* Workaround for potential 82544 hang in PCI-X. + * Avoid terminating buffers within evenly-aligned + * dwords. */ + if (unlikely(adapter->pcix_82544 && + !((unsigned long)(frag->page+offset+size-1) & 4) && + size > 4)) + size -= 4; + + buffer_info->length = size; + buffer_info->dma = map[f] + offset; + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + len -= size; + offset += size; + count++; + } + } + + tx_ring->buffer_info[i].skb = skb; + tx_ring->buffer_info[first].next_to_watch = i; + + return count; +} + +static void e1000_tx_queue(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, int tx_flags, + int count) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_desc *tx_desc = NULL; + struct e1000_buffer *buffer_info; + u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS; + unsigned int i; + + if (likely(tx_flags & E1000_TX_FLAGS_TSO)) { + txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D | + E1000_TXD_CMD_TSE; + txd_upper |= E1000_TXD_POPTS_TXSM << 8; + + if (likely(tx_flags & E1000_TX_FLAGS_IPV4)) + txd_upper |= E1000_TXD_POPTS_IXSM << 8; + } + + if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) { + txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D; + txd_upper |= E1000_TXD_POPTS_TXSM << 8; + } + + if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) { + txd_lower |= E1000_TXD_CMD_VLE; + txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK); + } + + i = tx_ring->next_to_use; + + while (count--) { + buffer_info = &tx_ring->buffer_info[i]; + tx_desc = E1000_TX_DESC(*tx_ring, i); + tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + tx_desc->lower.data = + cpu_to_le32(txd_lower | buffer_info->length); + tx_desc->upper.data = cpu_to_le32(txd_upper); + if (unlikely(++i == tx_ring->count)) i = 0; + } + + tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + + tx_ring->next_to_use = i; + writel(i, hw->hw_addr + tx_ring->tdt); + /* we need this if more than one processor can write to our tail + * at a time, it syncronizes IO on IA64/Altix systems */ + mmiowb(); +} + +/** + * 82547 workaround to avoid controller hang in half-duplex environment. + * The workaround is to avoid queuing a large packet that would span + * the internal Tx FIFO ring boundary by notifying the stack to resend + * the packet at a later time. This gives the Tx FIFO an opportunity to + * flush all packets. When that occurs, we reset the Tx FIFO pointers + * to the beginning of the Tx FIFO. + **/ + +#define E1000_FIFO_HDR 0x10 +#define E1000_82547_PAD_LEN 0x3E0 + +static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, + struct sk_buff *skb) +{ + u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head; + u32 skb_fifo_len = skb->len + E1000_FIFO_HDR; + + skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR); + + if (adapter->link_duplex != HALF_DUPLEX) + goto no_fifo_stall_required; + + if (atomic_read(&adapter->tx_fifo_stall)) + return 1; + + if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) { + atomic_set(&adapter->tx_fifo_stall, 1); + return 1; + } + +no_fifo_stall_required: + adapter->tx_fifo_head += skb_fifo_len; + if (adapter->tx_fifo_head >= adapter->tx_fifo_size) + adapter->tx_fifo_head -= adapter->tx_fifo_size; + return 0; +} + +#define MINIMUM_DHCP_PACKET_SIZE 282 +static int e1000_transfer_dhcp_info(struct e1000_adapter *adapter, + struct sk_buff *skb) +{ + struct e1000_hw *hw = &adapter->hw; + u16 length, offset; + if (vlan_tx_tag_present(skb)) { + if (!((vlan_tx_tag_get(skb) == hw->mng_cookie.vlan_id) && + ( hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) ) + return 0; + } + if (skb->len > MINIMUM_DHCP_PACKET_SIZE) { + struct ethhdr *eth = (struct ethhdr *)skb->data; + if ((htons(ETH_P_IP) == eth->h_proto)) { + const struct iphdr *ip = + (struct iphdr *)((u8 *)skb->data+14); + if (IPPROTO_UDP == ip->protocol) { + struct udphdr *udp = + (struct udphdr *)((u8 *)ip + + (ip->ihl << 2)); + if (ntohs(udp->dest) == 67) { + offset = (u8 *)udp + 8 - skb->data; + length = skb->len - offset; + + return e1000_mng_write_dhcp_info(hw, + (u8 *)udp + 8, + length); + } + } + } + } + return 0; +} + +static int __e1000_maybe_stop_tx(struct net_device *netdev, int size) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + + netif_stop_queue(netdev); + /* Herbert's original patch had: + * smp_mb__after_netif_stop_queue(); + * but since that doesn't exist yet, just open code it. */ + smp_mb(); + + /* We need to check again in a case another CPU has just + * made room available. */ + if (likely(E1000_DESC_UNUSED(tx_ring) < size)) + return -EBUSY; + + /* A reprieve! */ + netif_start_queue(netdev); + ++adapter->restart_queue; + return 0; +} + +static int e1000_maybe_stop_tx(struct net_device *netdev, + struct e1000_tx_ring *tx_ring, int size) +{ + if (likely(E1000_DESC_UNUSED(tx_ring) >= size)) + return 0; + return __e1000_maybe_stop_tx(netdev, size); +} + +#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 ) +static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *tx_ring; + unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD; + unsigned int max_txd_pwr = E1000_MAX_TXD_PWR; + unsigned int tx_flags = 0; + unsigned int len = skb->len - skb->data_len; + unsigned int nr_frags = 0; + unsigned int mss = 0; + int count = 0; + int tso; + unsigned int f; + + /* This goes back to the question of how to logically map a tx queue + * to a flow. Right now, performance is impacted slightly negatively + * if using multiple tx queues. If the stack breaks away from a + * single qdisc implementation, we can look at this again. */ + tx_ring = adapter->tx_ring; + + if (unlikely(skb->len <= 0)) { + if (!adapter->ecdev) + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + /* 82571 and newer doesn't need the workaround that limited descriptor + * length to 4kB */ + if (hw->mac_type >= e1000_82571) + max_per_txd = 8192; + + mss = skb_shinfo(skb)->gso_size; + /* The controller does a simple calculation to + * make sure there is enough room in the FIFO before + * initiating the DMA for each buffer. The calc is: + * 4 = ceil(buffer len/mss). To make sure we don't + * overrun the FIFO, adjust the max buffer len if mss + * drops. */ + if (mss) { + u8 hdr_len; + max_per_txd = min(mss << 2, max_per_txd); + max_txd_pwr = fls(max_per_txd) - 1; + + /* TSO Workaround for 82571/2/3 Controllers -- if skb->data + * points to just header, pull a few bytes of payload from + * frags into skb->data */ + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + if (skb->data_len && hdr_len == len) { + switch (hw->mac_type) { + unsigned int pull_size; + case e1000_82544: + /* Make sure we have room to chop off 4 bytes, + * and that the end alignment will work out to + * this hardware's requirements + * NOTE: this is a TSO only workaround + * if end byte alignment not correct move us + * into the next dword */ + if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4) + break; + /* fall through */ + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_ich8lan: + pull_size = min((unsigned int)4, skb->data_len); + if (!__pskb_pull_tail(skb, pull_size)) { + DPRINTK(DRV, ERR, + "__pskb_pull_tail failed.\n"); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + len = skb->len - skb->data_len; + break; + default: + /* do nothing */ + break; + } + } + } + + /* reserve a descriptor for the offload context */ + if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL)) + count++; + count++; + + /* Controller Erratum workaround */ + if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb)) + count++; + + count += TXD_USE_COUNT(len, max_txd_pwr); + + if (adapter->pcix_82544) + count++; + + /* work-around for errata 10 and it applies to all controllers + * in PCI-X mode, so add one more descriptor to the count + */ + if (unlikely((hw->bus_type == e1000_bus_type_pcix) && + (len > 2015))) + count++; + + nr_frags = skb_shinfo(skb)->nr_frags; + for (f = 0; f < nr_frags; f++) + count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size, + max_txd_pwr); + if (adapter->pcix_82544) + count += nr_frags; + + + if (hw->tx_pkt_filtering && + (hw->mac_type == e1000_82573)) + e1000_transfer_dhcp_info(adapter, skb); + + /* need: count + 2 desc gap to keep tail from touching + * head, otherwise try next time */ + if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2))) + return NETDEV_TX_BUSY; + + if (unlikely(hw->mac_type == e1000_82547)) { + if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) { + if (!adapter->ecdev) { + netif_stop_queue(netdev); + mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1); + } + return NETDEV_TX_BUSY; + } + } + + if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) { + tx_flags |= E1000_TX_FLAGS_VLAN; + tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT); + } + + first = tx_ring->next_to_use; + + tso = e1000_tso(adapter, tx_ring, skb); + if (tso < 0) { + if (!adapter->ecdev) { + dev_kfree_skb_any(skb); + } + return NETDEV_TX_OK; + } + + if (likely(tso)) { + tx_ring->last_tx_tso = 1; + tx_flags |= E1000_TX_FLAGS_TSO; + } else if (likely(e1000_tx_csum(adapter, tx_ring, skb))) + tx_flags |= E1000_TX_FLAGS_CSUM; + + /* Old method was to assume IPv4 packet by default if TSO was enabled. + * 82571 hardware supports TSO capabilities for IPv6 as well... + * no longer assume, we must. */ + if (likely(skb->protocol == htons(ETH_P_IP))) + tx_flags |= E1000_TX_FLAGS_IPV4; + + count = e1000_tx_map(adapter, tx_ring, skb, first, max_per_txd, + nr_frags, mss); + + if (count) { + e1000_tx_queue(adapter, tx_ring, tx_flags, count); + if (!adapter->ecdev) { + /* Make sure there is space in the ring for the next send. */ + e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2); + } + + } else { + if (!adapter->ecdev) dev_kfree_skb_any(skb); + tx_ring->buffer_info[first].time_stamp = 0; + tx_ring->next_to_use = first; + } + + return NETDEV_TX_OK; +} + +/** + * e1000_tx_timeout - Respond to a Tx Hang + * @netdev: network interface device structure + **/ + +static void e1000_tx_timeout(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + /* Do the reset outside of interrupt context */ + adapter->tx_timeout_count++; + schedule_work(&adapter->reset_task); +} + +static void e1000_reset_task(struct work_struct *work) +{ + struct e1000_adapter *adapter = + container_of(work, struct e1000_adapter, reset_task); + + e1000_reinit_locked(adapter); +} + +/** + * e1000_get_stats - Get System Network Statistics + * @netdev: network interface device structure + * + * Returns the address of the device statistics structure. + * The statistics are actually updated from the timer callback. + **/ + +static struct net_device_stats *e1000_get_stats(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + /* only return the current stats */ + return &adapter->net_stats; +} + +/** + * e1000_change_mtu - Change the Maximum Transfer Unit + * @netdev: network interface device structure + * @new_mtu: new value for maximum frame size + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE; + u16 eeprom_data = 0; + + if (adapter->ecdev) + return -EBUSY; + + if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) || + (max_frame > MAX_JUMBO_FRAME_SIZE)) { + DPRINTK(PROBE, ERR, "Invalid MTU setting\n"); + return -EINVAL; + } + + /* Adapter-specific max frame size limits. */ + switch (hw->mac_type) { + case e1000_undefined ... e1000_82542_rev2_1: + case e1000_ich8lan: + if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) { + DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n"); + return -EINVAL; + } + break; + case e1000_82573: + /* Jumbo Frames not supported if: + * - this is not an 82573L device + * - ASPM is enabled in any way (0x1A bits 3:2) */ + e1000_read_eeprom(hw, EEPROM_INIT_3GIO_3, 1, + &eeprom_data); + if ((hw->device_id != E1000_DEV_ID_82573L) || + (eeprom_data & EEPROM_WORD1A_ASPM_MASK)) { + if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) { + DPRINTK(PROBE, ERR, + "Jumbo Frames not supported.\n"); + return -EINVAL; + } + break; + } + /* ERT will be enabled later to enable wire speed receives */ + + /* fall through to get support */ + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: +#define MAX_STD_JUMBO_FRAME_SIZE 9234 + if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) { + DPRINTK(PROBE, ERR, "MTU > 9216 not supported.\n"); + return -EINVAL; + } + break; + default: + /* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */ + break; + } + + /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN + * means we reserve 2 more, this pushes us to allocate from the next + * larger slab size + * i.e. RXBUFFER_2048 --> size-4096 slab */ + + if (max_frame <= E1000_RXBUFFER_256) + adapter->rx_buffer_len = E1000_RXBUFFER_256; + else if (max_frame <= E1000_RXBUFFER_512) + adapter->rx_buffer_len = E1000_RXBUFFER_512; + else if (max_frame <= E1000_RXBUFFER_1024) + adapter->rx_buffer_len = E1000_RXBUFFER_1024; + else if (max_frame <= E1000_RXBUFFER_2048) + adapter->rx_buffer_len = E1000_RXBUFFER_2048; + else if (max_frame <= E1000_RXBUFFER_4096) + adapter->rx_buffer_len = E1000_RXBUFFER_4096; + else if (max_frame <= E1000_RXBUFFER_8192) + adapter->rx_buffer_len = E1000_RXBUFFER_8192; + else if (max_frame <= E1000_RXBUFFER_16384) + adapter->rx_buffer_len = E1000_RXBUFFER_16384; + + /* adjust allocation if LPE protects us, and we aren't using SBP */ + if (!hw->tbi_compatibility_on && + ((max_frame == MAXIMUM_ETHERNET_FRAME_SIZE) || + (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE))) + adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; + + netdev->mtu = new_mtu; + hw->max_frame_size = max_frame; + + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + + return 0; +} + +/** + * e1000_update_stats - Update the board statistics counters + * @adapter: board private structure + **/ + +void e1000_update_stats(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct pci_dev *pdev = adapter->pdev; + unsigned long flags = 0; + u16 phy_tmp; + +#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF + + /* + * Prevent stats update while adapter is being reset, or if the pci + * connection is down. + */ + if (adapter->link_speed == 0) + return; + if (pci_channel_offline(pdev)) + return; + + if (!adapter->ecdev) + spin_lock_irqsave(&adapter->stats_lock, flags); + + /* these counters are modified from e1000_tbi_adjust_stats, + * called from the interrupt context, so they must only + * be written while holding adapter->stats_lock + */ + + adapter->stats.crcerrs += er32(CRCERRS); + adapter->stats.gprc += er32(GPRC); + adapter->stats.gorcl += er32(GORCL); + adapter->stats.gorch += er32(GORCH); + adapter->stats.bprc += er32(BPRC); + adapter->stats.mprc += er32(MPRC); + adapter->stats.roc += er32(ROC); + + if (hw->mac_type != e1000_ich8lan) { + adapter->stats.prc64 += er32(PRC64); + adapter->stats.prc127 += er32(PRC127); + adapter->stats.prc255 += er32(PRC255); + adapter->stats.prc511 += er32(PRC511); + adapter->stats.prc1023 += er32(PRC1023); + adapter->stats.prc1522 += er32(PRC1522); + } + + adapter->stats.symerrs += er32(SYMERRS); + adapter->stats.mpc += er32(MPC); + adapter->stats.scc += er32(SCC); + adapter->stats.ecol += er32(ECOL); + adapter->stats.mcc += er32(MCC); + adapter->stats.latecol += er32(LATECOL); + adapter->stats.dc += er32(DC); + adapter->stats.sec += er32(SEC); + adapter->stats.rlec += er32(RLEC); + adapter->stats.xonrxc += er32(XONRXC); + adapter->stats.xontxc += er32(XONTXC); + adapter->stats.xoffrxc += er32(XOFFRXC); + adapter->stats.xofftxc += er32(XOFFTXC); + adapter->stats.fcruc += er32(FCRUC); + adapter->stats.gptc += er32(GPTC); + adapter->stats.gotcl += er32(GOTCL); + adapter->stats.gotch += er32(GOTCH); + adapter->stats.rnbc += er32(RNBC); + adapter->stats.ruc += er32(RUC); + adapter->stats.rfc += er32(RFC); + adapter->stats.rjc += er32(RJC); + adapter->stats.torl += er32(TORL); + adapter->stats.torh += er32(TORH); + adapter->stats.totl += er32(TOTL); + adapter->stats.toth += er32(TOTH); + adapter->stats.tpr += er32(TPR); + + if (hw->mac_type != e1000_ich8lan) { + adapter->stats.ptc64 += er32(PTC64); + adapter->stats.ptc127 += er32(PTC127); + adapter->stats.ptc255 += er32(PTC255); + adapter->stats.ptc511 += er32(PTC511); + adapter->stats.ptc1023 += er32(PTC1023); + adapter->stats.ptc1522 += er32(PTC1522); + } + + adapter->stats.mptc += er32(MPTC); + adapter->stats.bptc += er32(BPTC); + + /* used for adaptive IFS */ + + hw->tx_packet_delta = er32(TPT); + adapter->stats.tpt += hw->tx_packet_delta; + hw->collision_delta = er32(COLC); + adapter->stats.colc += hw->collision_delta; + + if (hw->mac_type >= e1000_82543) { + adapter->stats.algnerrc += er32(ALGNERRC); + adapter->stats.rxerrc += er32(RXERRC); + adapter->stats.tncrs += er32(TNCRS); + adapter->stats.cexterr += er32(CEXTERR); + adapter->stats.tsctc += er32(TSCTC); + adapter->stats.tsctfc += er32(TSCTFC); + } + if (hw->mac_type > e1000_82547_rev_2) { + adapter->stats.iac += er32(IAC); + adapter->stats.icrxoc += er32(ICRXOC); + + if (hw->mac_type != e1000_ich8lan) { + adapter->stats.icrxptc += er32(ICRXPTC); + adapter->stats.icrxatc += er32(ICRXATC); + adapter->stats.ictxptc += er32(ICTXPTC); + adapter->stats.ictxatc += er32(ICTXATC); + adapter->stats.ictxqec += er32(ICTXQEC); + adapter->stats.ictxqmtc += er32(ICTXQMTC); + adapter->stats.icrxdmtc += er32(ICRXDMTC); + } + } + + /* Fill out the OS statistics structure */ + adapter->net_stats.multicast = adapter->stats.mprc; + adapter->net_stats.collisions = adapter->stats.colc; + + /* Rx Errors */ + + /* RLEC on some newer hardware can be incorrect so build + * our own version based on RUC and ROC */ + adapter->net_stats.rx_errors = adapter->stats.rxerrc + + adapter->stats.crcerrs + adapter->stats.algnerrc + + adapter->stats.ruc + adapter->stats.roc + + adapter->stats.cexterr; + adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc; + adapter->net_stats.rx_length_errors = adapter->stats.rlerrc; + adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs; + adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc; + adapter->net_stats.rx_missed_errors = adapter->stats.mpc; + + /* Tx Errors */ + adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol; + adapter->net_stats.tx_errors = adapter->stats.txerrc; + adapter->net_stats.tx_aborted_errors = adapter->stats.ecol; + adapter->net_stats.tx_window_errors = adapter->stats.latecol; + adapter->net_stats.tx_carrier_errors = adapter->stats.tncrs; + if (hw->bad_tx_carr_stats_fd && + adapter->link_duplex == FULL_DUPLEX) { + adapter->net_stats.tx_carrier_errors = 0; + adapter->stats.tncrs = 0; + } + + /* Tx Dropped needs to be maintained elsewhere */ + + /* Phy Stats */ + if (hw->media_type == e1000_media_type_copper) { + if ((adapter->link_speed == SPEED_1000) && + (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) { + phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK; + adapter->phy_stats.idle_errors += phy_tmp; + } + + if ((hw->mac_type <= e1000_82546) && + (hw->phy_type == e1000_phy_m88) && + !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp)) + adapter->phy_stats.receive_errors += phy_tmp; + } + + /* Management Stats */ + if (hw->has_smbus) { + adapter->stats.mgptc += er32(MGTPTC); + adapter->stats.mgprc += er32(MGTPRC); + adapter->stats.mgpdc += er32(MGTPDC); + } + + if (!adapter->ecdev) + spin_unlock_irqrestore(&adapter->stats_lock, flags); +} + +void ec_poll(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + if (jiffies - adapter->ec_watchdog_jiffies >= 2 * HZ) { + e1000_watchdog((unsigned long) adapter); + adapter->ec_watchdog_jiffies = jiffies; + } +#ifdef CONFIG_PCI_MSI + e1000_intr_msi(0, netdev); +#else + e1000_intr(0, netdev); +#endif +} + +/** + * e1000_intr_msi - Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + **/ + +static irqreturn_t e1000_intr_msi(int irq, void *data) +{ + struct net_device *netdev = data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 icr = er32(ICR); + + if (adapter->ecdev) { + int i, ec_work_done = 0; + for (i = 0; i < E1000_MAX_INTR; i++) { + if (unlikely(!adapter->clean_rx(adapter, adapter->rx_ring, + &ec_work_done, 100) & + !e1000_clean_tx_irq(adapter, adapter->tx_ring))) { + break; + } + } + } else { + /* in NAPI mode read ICR disables interrupts using IAM */ + + if ( !adapter->ecdev && (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) ) { + hw->get_link_status = 1; + /* 80003ES2LAN workaround-- For packet buffer work-around on + * link down event; disable receives here in the ISR and reset + * adapter in watchdog */ + if (netif_carrier_ok(netdev) && + (hw->mac_type == e1000_80003es2lan)) { + /* disable receives */ + u32 rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + } + /* guard against interrupt when we're going down */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, jiffies + 1); + } + + if (likely(napi_schedule_prep(&adapter->napi))) { + adapter->total_tx_bytes = 0; + adapter->total_tx_packets = 0; + adapter->total_rx_bytes = 0; + adapter->total_rx_packets = 0; + __napi_schedule(&adapter->napi); + } else + e1000_irq_enable(adapter); + } + + return IRQ_HANDLED; +} + +/** + * e1000_intr - Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + **/ + +static irqreturn_t e1000_intr(int irq, void *data) +{ + struct net_device *netdev = data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 rctl, icr = er32(ICR); + + if (unlikely((!icr) || test_bit(__E1000_DOWN, &adapter->flags))) + return IRQ_NONE; /* Not our interrupt */ + + /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is + * not set, then the adapter didn't send an interrupt */ + if (unlikely(hw->mac_type >= e1000_82571 && + !(icr & E1000_ICR_INT_ASSERTED))) + return IRQ_NONE; + + /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No + * need for the IMC write */ + + if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) { + hw->get_link_status = 1; + /* 80003ES2LAN workaround-- + * For packet buffer work-around on link down event; + * disable receives here in the ISR and + * reset adapter in watchdog + */ + if (netif_carrier_ok(netdev) && + (hw->mac_type == e1000_80003es2lan)) { + /* disable receives */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + } + /* guard against interrupt when we're going down */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, jiffies + 1); + } + + if (unlikely(hw->mac_type < e1000_82571)) { + /* disable interrupts, without the synchronize_irq bit */ + ew32(IMC, ~0); + E1000_WRITE_FLUSH(); + } + if (likely(napi_schedule_prep(&adapter->napi))) { + adapter->total_tx_bytes = 0; + adapter->total_tx_packets = 0; + adapter->total_rx_bytes = 0; + adapter->total_rx_packets = 0; + __napi_schedule(&adapter->napi); + } else { + /* this really should not happen! if it does it is basically a + * bug, but not a hard error, so enable ints and continue */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + } + + return IRQ_HANDLED; +} + +/** + * e1000_clean - NAPI Rx polling callback + * @adapter: board private structure + * EtherCAT: never called + **/ +static int e1000_clean(struct napi_struct *napi, int budget) +{ + struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi); + struct net_device *poll_dev = adapter->netdev; + int tx_cleaned = 0, work_done = 0; + + adapter = netdev_priv(poll_dev); + + tx_cleaned = e1000_clean_tx_irq(adapter, &adapter->tx_ring[0]); + + adapter->clean_rx(adapter, &adapter->rx_ring[0], + &work_done, budget); + + if (!tx_cleaned) + work_done = budget; + + /* If budget not fully consumed, exit the polling mode */ + if (work_done < budget) { + if (likely(adapter->itr_setting & 3)) + e1000_set_itr(adapter); + napi_complete(napi); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + } + + return work_done; +} + +/** + * e1000_clean_tx_irq - Reclaim resources after transmit completes + * @adapter: board private structure + **/ +static bool e1000_clean_tx_irq(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct e1000_tx_desc *tx_desc, *eop_desc; + struct e1000_buffer *buffer_info; + unsigned int i, eop; + unsigned int count = 0; + unsigned int total_tx_bytes=0, total_tx_packets=0; + + i = tx_ring->next_to_clean; + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC(*tx_ring, eop); + + while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) && + (count < tx_ring->count)) { + bool cleaned = false; + for ( ; !cleaned; count++) { + tx_desc = E1000_TX_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; + cleaned = (i == eop); + + if (cleaned) { + struct sk_buff *skb = buffer_info->skb; + unsigned int segs, bytecount; + segs = skb_shinfo(skb)->gso_segs ?: 1; + /* multiply data chunks by size of headers */ + bytecount = ((segs - 1) * skb_headlen(skb)) + + skb->len; + total_tx_packets += segs; + total_tx_bytes += bytecount; + } + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + tx_desc->upper.data = 0; + + if (unlikely(++i == tx_ring->count)) i = 0; + } + + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC(*tx_ring, eop); + } + + tx_ring->next_to_clean = i; + +#define TX_WAKE_THRESHOLD 32 + if (!adapter->ecdev && unlikely(count && netif_carrier_ok(netdev) && + E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) { + /* Make sure that anybody stopping the queue after this + * sees the new next_to_clean. + */ + smp_mb(); + if (netif_queue_stopped(netdev)) { + netif_wake_queue(netdev); + ++adapter->restart_queue; + } + } + + if (!adapter->ecdev && adapter->detect_tx_hung) { + /* Detect a transmit hang in hardware, this serializes the + * check with the clearing of time_stamp and movement of i */ + adapter->detect_tx_hung = false; + if (tx_ring->buffer_info[i].time_stamp && + time_after(jiffies, tx_ring->buffer_info[i].time_stamp + + (adapter->tx_timeout_factor * HZ)) + && !(er32(STATUS) & E1000_STATUS_TXOFF)) { + + /* detected Tx unit hang */ + DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n" + " Tx Queue <%lu>\n" + " TDH <%x>\n" + " TDT <%x>\n" + " next_to_use <%x>\n" + " next_to_clean <%x>\n" + "buffer_info[next_to_clean]\n" + " time_stamp <%lx>\n" + " next_to_watch <%x>\n" + " jiffies <%lx>\n" + " next_to_watch.status <%x>\n", + (unsigned long)((tx_ring - adapter->tx_ring) / + sizeof(struct e1000_tx_ring)), + readl(hw->hw_addr + tx_ring->tdh), + readl(hw->hw_addr + tx_ring->tdt), + tx_ring->next_to_use, + tx_ring->next_to_clean, + tx_ring->buffer_info[i].time_stamp, + eop, + jiffies, + eop_desc->upper.fields.status); + netif_stop_queue(netdev); + } + } + adapter->total_tx_bytes += total_tx_bytes; + adapter->total_tx_packets += total_tx_packets; + adapter->net_stats.tx_bytes += total_tx_bytes; + adapter->net_stats.tx_packets += total_tx_packets; + return (count < tx_ring->count); +} + +/** + * e1000_rx_checksum - Receive Checksum Offload for 82543 + * @adapter: board private structure + * @status_err: receive descriptor status and error fields + * @csum: receive descriptor csum field + * @sk_buff: socket buffer with received data + **/ + +static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, + u32 csum, struct sk_buff *skb) +{ + struct e1000_hw *hw = &adapter->hw; + u16 status = (u16)status_err; + u8 errors = (u8)(status_err >> 24); + skb->ip_summed = CHECKSUM_NONE; + + /* 82543 or newer only */ + if (unlikely(hw->mac_type < e1000_82543)) return; + /* Ignore Checksum bit is set */ + if (unlikely(status & E1000_RXD_STAT_IXSM)) return; + /* TCP/UDP checksum error bit is set */ + if (unlikely(errors & E1000_RXD_ERR_TCPE)) { + /* let the stack verify checksum errors */ + adapter->hw_csum_err++; + return; + } + /* TCP/UDP Checksum has not been calculated */ + if (hw->mac_type <= e1000_82547_rev_2) { + if (!(status & E1000_RXD_STAT_TCPCS)) + return; + } else { + if (!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS))) + return; + } + /* It must be a TCP or UDP packet with a valid checksum */ + if (likely(status & E1000_RXD_STAT_TCPCS)) { + /* TCP checksum is good */ + skb->ip_summed = CHECKSUM_UNNECESSARY; + } else if (hw->mac_type > e1000_82547_rev_2) { + /* IP fragment with UDP payload */ + /* Hardware complements the payload checksum, so we undo it + * and then put the value in host order for further stack use. + */ + __sum16 sum = (__force __sum16)htons(csum); + skb->csum = csum_unfold(~sum); + skb->ip_summed = CHECKSUM_COMPLETE; + } + adapter->hw_csum_good++; +} + +/** + * e1000_clean_rx_irq - Send received data up the network stack; legacy + * @adapter: board private structure + **/ +static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc, *next_rxd; + struct e1000_buffer *buffer_info, *next_buffer; + unsigned long flags; + u32 length; + u8 last_byte; + unsigned int i; + int cleaned_count = 0; + bool cleaned = false; + unsigned int total_rx_bytes=0, total_rx_packets=0; + + i = rx_ring->next_to_clean; + rx_desc = E1000_RX_DESC(*rx_ring, i); + buffer_info = &rx_ring->buffer_info[i]; + + while (rx_desc->status & E1000_RXD_STAT_DD) { + struct sk_buff *skb; + u8 status; + + if (*work_done >= work_to_do) + break; + (*work_done)++; + + status = rx_desc->status; + skb = buffer_info->skb; + if (!adapter->ecdev) buffer_info->skb = NULL; + + prefetch(skb->data - NET_IP_ALIGN); + + if (++i == rx_ring->count) i = 0; + next_rxd = E1000_RX_DESC(*rx_ring, i); + prefetch(next_rxd); + + next_buffer = &rx_ring->buffer_info[i]; + + cleaned = true; + cleaned_count++; + pci_unmap_single(pdev, + buffer_info->dma, + buffer_info->length, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + length = le16_to_cpu(rx_desc->length); + /* !EOP means multiple descriptors were used to store a single + * packet, also make sure the frame isn't just CRC only */ + if (unlikely(!(status & E1000_RXD_STAT_EOP) || (length <= 4))) { + /* All receives must fit into a single buffer */ + E1000_DBG("%s: Receive packet consumed multiple" + " buffers\n", netdev->name); + /* recycle */ + buffer_info->skb = skb; + goto next_desc; + } + + if (!adapter->ecdev && + unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) { + last_byte = *(skb->data + length - 1); + if (TBI_ACCEPT(hw, status, rx_desc->errors, length, + last_byte)) { + spin_lock_irqsave(&adapter->stats_lock, flags); + e1000_tbi_adjust_stats(hw, &adapter->stats, + length, skb->data); + spin_unlock_irqrestore(&adapter->stats_lock, + flags); + length--; + } else { + /* recycle */ + buffer_info->skb = skb; + goto next_desc; + } + } + + /* adjust length to remove Ethernet CRC, this must be + * done after the TBI_ACCEPT workaround above */ + length -= 4; + + /* probably a little skewed due to removing CRC */ + total_rx_bytes += length; + total_rx_packets++; + + /* code added for copybreak, this should improve + * performance for small packets with large amounts + * of reassembly being done in the stack */ + if (!adapter->ecdev && length < copybreak) { + struct sk_buff *new_skb = + netdev_alloc_skb(netdev, length + NET_IP_ALIGN); + if (new_skb) { + skb_reserve(new_skb, NET_IP_ALIGN); + skb_copy_to_linear_data_offset(new_skb, + -NET_IP_ALIGN, + (skb->data - + NET_IP_ALIGN), + (length + + NET_IP_ALIGN)); + /* save the skb in buffer_info as good */ + buffer_info->skb = skb; + skb = new_skb; + } + /* else just continue with the old one */ + } + /* end copybreak code */ + skb_put(skb, length); + + /* Receive Checksum Offload */ + e1000_rx_checksum(adapter, + (u32)(status) | + ((u32)(rx_desc->errors) << 24), + le16_to_cpu(rx_desc->csum), skb); + + if (adapter->ecdev) { + ecdev_receive(adapter->ecdev, skb->data, length); + + // No need to detect link status as + // long as frames are received: Reset watchdog. + adapter->ec_watchdog_jiffies = jiffies; + } else { + skb->protocol = eth_type_trans(skb, netdev); + + if (unlikely(adapter->vlgrp && + (status & E1000_RXD_STAT_VP))) { + vlan_hwaccel_receive_skb(skb, adapter->vlgrp, + le16_to_cpu(rx_desc->special)); + } else { + netif_receive_skb(skb); + } + } + +next_desc: + rx_desc->status = 0; + + /* return some buffers to hardware, one at a time is too slow */ + if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) { + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + cleaned_count = 0; + } + + /* use prefetched values */ + rx_desc = next_rxd; + buffer_info = next_buffer; + } + rx_ring->next_to_clean = i; + + cleaned_count = E1000_DESC_UNUSED(rx_ring); + if (cleaned_count) + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + + adapter->total_rx_packets += total_rx_packets; + adapter->total_rx_bytes += total_rx_bytes; + adapter->net_stats.rx_bytes += total_rx_bytes; + adapter->net_stats.rx_packets += total_rx_packets; + return cleaned; +} + +/** + * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended + * @adapter: address of board private structure + **/ + +static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc; + struct e1000_buffer *buffer_info; + struct sk_buff *skb; + unsigned int i; + unsigned int bufsz = adapter->rx_buffer_len + NET_IP_ALIGN; + + i = rx_ring->next_to_use; + buffer_info = &rx_ring->buffer_info[i]; + + while (cleaned_count--) { + skb = buffer_info->skb; + if (skb) { + skb_trim(skb, 0); + goto map_skb; + } + + skb = netdev_alloc_skb(netdev, bufsz); + if (unlikely(!skb)) { + /* Better luck next round */ + adapter->alloc_rx_buff_failed++; + break; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + struct sk_buff *oldskb = skb; + DPRINTK(RX_ERR, ERR, "skb align check failed: %u bytes " + "at %p\n", bufsz, skb->data); + /* Try again, without freeing the previous */ + skb = netdev_alloc_skb(netdev, bufsz); + /* Failed allocation, critical failure */ + if (!skb) { + dev_kfree_skb(oldskb); + break; + } + + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + /* give up */ + dev_kfree_skb(skb); + dev_kfree_skb(oldskb); + break; /* while !buffer_info->skb */ + } + + /* Use new allocation */ + dev_kfree_skb(oldskb); + } + /* Make buffer alignment 2 beyond a 16 byte boundary + * this will result in a 16 byte aligned IP header after + * the 14 byte MAC header is removed + */ + skb_reserve(skb, NET_IP_ALIGN); + + buffer_info->skb = skb; + buffer_info->length = adapter->rx_buffer_len; +map_skb: + buffer_info->dma = pci_map_single(pdev, + skb->data, + adapter->rx_buffer_len, + PCI_DMA_FROMDEVICE); + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, + (void *)(unsigned long)buffer_info->dma, + adapter->rx_buffer_len)) { + DPRINTK(RX_ERR, ERR, + "dma align check failed: %u bytes at %p\n", + adapter->rx_buffer_len, + (void *)(unsigned long)buffer_info->dma); + if (!adapter->ecdev) { + dev_kfree_skb(skb); + buffer_info->skb = NULL; + } + + pci_unmap_single(pdev, buffer_info->dma, + adapter->rx_buffer_len, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + break; /* while !buffer_info->skb */ + } + rx_desc = E1000_RX_DESC(*rx_ring, i); + rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + + if (unlikely(++i == rx_ring->count)) + i = 0; + buffer_info = &rx_ring->buffer_info[i]; + } + + if (likely(rx_ring->next_to_use != i)) { + rx_ring->next_to_use = i; + if (unlikely(i-- == 0)) + i = (rx_ring->count - 1); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + writel(i, hw->hw_addr + rx_ring->rdt); + } +} + +/** + * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers. + * @adapter: + **/ + +static void e1000_smartspeed(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_status; + u16 phy_ctrl; + + if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg || + !(hw->autoneg_advertised & ADVERTISE_1000_FULL)) + return; + + if (adapter->smartspeed == 0) { + /* If Master/Slave config fault is asserted twice, + * we assume back-to-back */ + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status); + if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return; + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status); + if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return; + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl); + if (phy_ctrl & CR_1000T_MS_ENABLE) { + phy_ctrl &= ~CR_1000T_MS_ENABLE; + e1000_write_phy_reg(hw, PHY_1000T_CTRL, + phy_ctrl); + adapter->smartspeed++; + if (!e1000_phy_setup_autoneg(hw) && + !e1000_read_phy_reg(hw, PHY_CTRL, + &phy_ctrl)) { + phy_ctrl |= (MII_CR_AUTO_NEG_EN | + MII_CR_RESTART_AUTO_NEG); + e1000_write_phy_reg(hw, PHY_CTRL, + phy_ctrl); + } + } + return; + } else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) { + /* If still no link, perhaps using 2/3 pair cable */ + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl); + phy_ctrl |= CR_1000T_MS_ENABLE; + e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl); + if (!e1000_phy_setup_autoneg(hw) && + !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) { + phy_ctrl |= (MII_CR_AUTO_NEG_EN | + MII_CR_RESTART_AUTO_NEG); + e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl); + } + } + /* Restart process after E1000_SMARTSPEED_MAX iterations */ + if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX) + adapter->smartspeed = 0; +} + +/** + * e1000_ioctl - + * @netdev: + * @ifreq: + * @cmd: + **/ + +static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + switch (cmd) { + case SIOCGMIIPHY: + case SIOCGMIIREG: + case SIOCSMIIREG: + return e1000_mii_ioctl(netdev, ifr, cmd); + default: + return -EOPNOTSUPP; + } +} + +/** + * e1000_mii_ioctl - + * @netdev: + * @ifreq: + * @cmd: + **/ + +static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct mii_ioctl_data *data = if_mii(ifr); + int retval; + u16 mii_reg; + u16 spddplx; + unsigned long flags; + + if (hw->media_type != e1000_media_type_copper) + return -EOPNOTSUPP; + + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = hw->phy_addr; + break; + case SIOCGMIIREG: + if (!capable(CAP_NET_ADMIN) || adapter->ecdev) + return -EPERM; + spin_lock_irqsave(&adapter->stats_lock, flags); + if (e1000_read_phy_reg(hw, data->reg_num & 0x1F, + &data->val_out)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); + break; + case SIOCSMIIREG: + if (!capable(CAP_NET_ADMIN) || adapter->ecdev) + return -EPERM; + if (data->reg_num & ~(0x1F)) + return -EFAULT; + mii_reg = data->val_in; + spin_lock_irqsave(&adapter->stats_lock, flags); + if (e1000_write_phy_reg(hw, data->reg_num, + mii_reg)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); + if (hw->media_type == e1000_media_type_copper) { + switch (data->reg_num) { + case PHY_CTRL: + if (mii_reg & MII_CR_POWER_DOWN) + break; + if (mii_reg & MII_CR_AUTO_NEG_EN) { + hw->autoneg = 1; + hw->autoneg_advertised = 0x2F; + } else { + if (mii_reg & 0x40) + spddplx = SPEED_1000; + else if (mii_reg & 0x2000) + spddplx = SPEED_100; + else + spddplx = SPEED_10; + spddplx += (mii_reg & 0x100) + ? DUPLEX_FULL : + DUPLEX_HALF; + retval = e1000_set_spd_dplx(adapter, + spddplx); + if (retval) + return retval; + } + if (netif_running(adapter->netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + break; + case M88E1000_PHY_SPEC_CTRL: + case M88E1000_EXT_PHY_SPEC_CTRL: + if (e1000_phy_reset(hw)) + return -EIO; + break; + } + } else { + switch (data->reg_num) { + case PHY_CTRL: + if (mii_reg & MII_CR_POWER_DOWN) + break; + if (netif_running(adapter->netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + break; + } + } + break; + default: + return -EOPNOTSUPP; + } + return E1000_SUCCESS; +} + +void e1000_pci_set_mwi(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + int ret_val = pci_set_mwi(adapter->pdev); + + if (ret_val) + DPRINTK(PROBE, ERR, "Error in setting MWI\n"); +} + +void e1000_pci_clear_mwi(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + + pci_clear_mwi(adapter->pdev); +} + +int e1000_pcix_get_mmrbc(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + return pcix_get_mmrbc(adapter->pdev); +} + +void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc) +{ + struct e1000_adapter *adapter = hw->back; + pcix_set_mmrbc(adapter->pdev, mmrbc); +} + +s32 e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) +{ + struct e1000_adapter *adapter = hw->back; + u16 cap_offset; + + cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); + if (!cap_offset) + return -E1000_ERR_CONFIG; + + pci_read_config_word(adapter->pdev, cap_offset + reg, value); + + return E1000_SUCCESS; +} + +void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value) +{ + outl(value, port); +} + +static void e1000_vlan_rx_register(struct net_device *netdev, + struct vlan_group *grp) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 ctrl, rctl; + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); + adapter->vlgrp = grp; + + if (grp) { + /* enable VLAN tag insert/strip */ + ctrl = er32(CTRL); + ctrl |= E1000_CTRL_VME; + ew32(CTRL, ctrl); + + if (adapter->hw.mac_type != e1000_ich8lan) { + /* enable VLAN receive filtering */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_CFIEN; + ew32(RCTL, rctl); + e1000_update_mng_vlan(adapter); + } + } else { + /* disable VLAN tag insert/strip */ + ctrl = er32(CTRL); + ctrl &= ~E1000_CTRL_VME; + ew32(CTRL, ctrl); + + if (adapter->hw.mac_type != e1000_ich8lan) { + if (adapter->mng_vlan_id != + (u16)E1000_MNG_VLAN_NONE) { + e1000_vlan_rx_kill_vid(netdev, + adapter->mng_vlan_id); + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + } + } + } + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); +} + +static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 vfta, index; + + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + (vid == adapter->mng_vlan_id)) + return; + /* add VID to filter table */ + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, VFTA, index); + vfta |= (1 << (vid & 0x1F)); + e1000_write_vfta(hw, index, vfta); +} + +static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 vfta, index; + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); + vlan_group_set_device(adapter->vlgrp, vid, NULL); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + (vid == adapter->mng_vlan_id)) { + /* release control to f/w */ + e1000_release_hw_control(adapter); + return; + } + + /* remove VID from filter table */ + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, VFTA, index); + vfta &= ~(1 << (vid & 0x1F)); + e1000_write_vfta(hw, index, vfta); +} + +static void e1000_restore_vlan(struct e1000_adapter *adapter) +{ + e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp); + + if (adapter->vlgrp) { + u16 vid; + for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) { + if (!vlan_group_get_device(adapter->vlgrp, vid)) + continue; + e1000_vlan_rx_add_vid(adapter->netdev, vid); + } + } +} + +int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx) +{ + struct e1000_hw *hw = &adapter->hw; + + hw->autoneg = 0; + + /* Fiber NICs only allow 1000 gbps Full duplex */ + if ((hw->media_type == e1000_media_type_fiber) && + spddplx != (SPEED_1000 + DUPLEX_FULL)) { + DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; + } + + switch (spddplx) { + case SPEED_10 + DUPLEX_HALF: + hw->forced_speed_duplex = e1000_10_half; + break; + case SPEED_10 + DUPLEX_FULL: + hw->forced_speed_duplex = e1000_10_full; + break; + case SPEED_100 + DUPLEX_HALF: + hw->forced_speed_duplex = e1000_100_half; + break; + case SPEED_100 + DUPLEX_FULL: + hw->forced_speed_duplex = e1000_100_full; + break; + case SPEED_1000 + DUPLEX_FULL: + hw->autoneg = 1; + hw->autoneg_advertised = ADVERTISE_1000_FULL; + break; + case SPEED_1000 + DUPLEX_HALF: /* not supported */ + default: + DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; + } + return 0; +} + +static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 ctrl, ctrl_ext, rctl, status; + u32 wufc = adapter->wol; +#ifdef CONFIG_PM + int retval = 0; +#endif + + if (adapter->ecdev) + return -EBUSY; + + netif_device_detach(netdev); + + if (netif_running(netdev)) { + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); + e1000_down(adapter); + } + +#ifdef CONFIG_PM + retval = pci_save_state(pdev); + if (retval) + return retval; +#endif + + status = er32(STATUS); + if (status & E1000_STATUS_LU) + wufc &= ~E1000_WUFC_LNKC; + + if (wufc) { + e1000_setup_rctl(adapter); + e1000_set_rx_mode(netdev); + + /* turn on all-multi mode if wake on multicast is enabled */ + if (wufc & E1000_WUFC_MC) { + rctl = er32(RCTL); + rctl |= E1000_RCTL_MPE; + ew32(RCTL, rctl); + } + + if (hw->mac_type >= e1000_82540) { + ctrl = er32(CTRL); + /* advertise wake from D3Cold */ + #define E1000_CTRL_ADVD3WUC 0x00100000 + /* phy power management enable */ + #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000 + ctrl |= E1000_CTRL_ADVD3WUC | + E1000_CTRL_EN_PHY_PWR_MGMT; + ew32(CTRL, ctrl); + } + + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { + /* keep the laser running in D3 */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA; + ew32(CTRL_EXT, ctrl_ext); + } + + /* Allow time for pending master requests to run */ + e1000_disable_pciex_master(hw); + + ew32(WUC, E1000_WUC_PME_EN); + ew32(WUFC, wufc); + } else { + ew32(WUC, 0); + ew32(WUFC, 0); + } + + e1000_release_manageability(adapter); + + *enable_wake = !!wufc; + + /* make sure adapter isn't asleep if manageability is enabled */ + if (adapter->en_mng_pt) + *enable_wake = true; + + if (hw->phy_type == e1000_phy_igp_3) + e1000_phy_powerdown_workaround(hw); + + if (netif_running(netdev)) + e1000_free_irq(adapter); + + /* Release control of h/w to f/w. If f/w is AMT enabled, this + * would have already happened in close and is redundant. */ + e1000_release_hw_control(adapter); + + pci_disable_device(pdev); + + return 0; +} + +#ifdef CONFIG_PM +static int e1000_suspend(struct pci_dev *pdev, pm_message_t state) +{ + int retval; + bool wake; + + retval = __e1000_shutdown(pdev, &wake); + if (retval) + return retval; + + if (wake) { + pci_prepare_to_sleep(pdev); + } else { + pci_wake_from_d3(pdev, false); + pci_set_power_state(pdev, PCI_D3hot); + } + + return 0; +} + +static int e1000_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 err; + + if (adapter->ecdev) + return -EBUSY; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { + printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n"); + return err; + } + pci_set_master(pdev); + + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + + if (netif_running(netdev)) { + err = e1000_request_irq(adapter); + if (err) + return err; + } + + e1000_power_up_phy(adapter); + e1000_reset(adapter); + ew32(WUS, ~0); + + e1000_init_manageability(adapter); + + if (netif_running(netdev)) + e1000_up(adapter); + + if (!adapter->ecdev) netif_device_attach(netdev); + + /* If the controller is 82573 and f/w is AMT, do not set + * DRV_LOAD until the interface is up. For all other cases, + * let the f/w know that the h/w is now under the control + * of the driver. */ + if (hw->mac_type != e1000_82573 || + !e1000_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + + return 0; +} +#endif + +static void e1000_shutdown(struct pci_dev *pdev) +{ + bool wake; + + __e1000_shutdown(pdev, &wake); + + if (system_state == SYSTEM_POWER_OFF) { + pci_wake_from_d3(pdev, wake); + pci_set_power_state(pdev, PCI_D3hot); + } +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling 'interrupt' - used by things like netconsole to send skbs + * without having to re-enable interrupts. It's not called while + * the interrupt routine is executing. + */ +static void e1000_netpoll(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + disable_irq(adapter->pdev->irq); + e1000_intr(adapter->pdev->irq, netdev); + enable_irq(adapter->pdev->irq); +} +#endif + +/** + * e1000_io_error_detected - called when PCI error is detected + * @pdev: Pointer to PCI device + * @state: The current pci conneection state + * + * This function is called after a PCI bus error affecting + * this device has been detected. + */ +static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + + netif_device_detach(netdev); + + if (state == pci_channel_io_perm_failure) + return PCI_ERS_RESULT_DISCONNECT; + + if (netif_running(netdev)) + e1000_down(adapter); + pci_disable_device(pdev); + + /* Request a slot slot reset. */ + return PCI_ERS_RESULT_NEED_RESET; +} + +/** + * e1000_io_slot_reset - called after the pci bus has been reset. + * @pdev: Pointer to PCI device + * + * Restart the card from scratch, as if from a cold-boot. Implementation + * resembles the first-half of the e1000_resume routine. + */ +static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int err; + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { + printk(KERN_ERR "e1000: Cannot re-enable PCI device after reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + pci_set_master(pdev); + + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + + e1000_reset(adapter); + ew32(WUS, ~0); + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * e1000_io_resume - called when traffic can start flowing again. + * @pdev: Pointer to PCI device + * + * This callback is called when the error recovery driver tells us that + * its OK to resume normal operation. Implementation resembles the + * second-half of the e1000_resume routine. + */ +static void e1000_io_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + e1000_init_manageability(adapter); + + if (netif_running(netdev)) { + if (e1000_up(adapter)) { + printk("e1000: can't bring device back up after reset\n"); + return; + } + } + + netif_device_attach(netdev); + + /* If the controller is 82573 and f/w is AMT, do not set + * DRV_LOAD until the interface is up. For all other cases, + * let the f/w know that the h/w is now under the control + * of the driver. */ + if (hw->mac_type != e1000_82573 || + !e1000_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + +} + +/* e1000_main.c */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_main-2.6.31-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_main-2.6.31-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,4905 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include "e1000.h" +#include + +char e1000_driver_name[] = "e1000"; +static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver"; +#define DRV_VERSION "7.3.21-k3-NAPI" +const char e1000_driver_version[] = DRV_VERSION; +static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation."; + +/* e1000_pci_tbl - PCI Device ID Table + * + * Last entry must be all 0s + * + * Macro expands to... + * {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} + */ +static struct pci_device_id e1000_pci_tbl[] = { + INTEL_E1000_ETHERNET_DEVICE(0x1000), + INTEL_E1000_ETHERNET_DEVICE(0x1001), + INTEL_E1000_ETHERNET_DEVICE(0x1004), + INTEL_E1000_ETHERNET_DEVICE(0x1008), + INTEL_E1000_ETHERNET_DEVICE(0x1009), + INTEL_E1000_ETHERNET_DEVICE(0x100C), + INTEL_E1000_ETHERNET_DEVICE(0x100D), + INTEL_E1000_ETHERNET_DEVICE(0x100E), + INTEL_E1000_ETHERNET_DEVICE(0x100F), + INTEL_E1000_ETHERNET_DEVICE(0x1010), + INTEL_E1000_ETHERNET_DEVICE(0x1011), + INTEL_E1000_ETHERNET_DEVICE(0x1012), + INTEL_E1000_ETHERNET_DEVICE(0x1013), + INTEL_E1000_ETHERNET_DEVICE(0x1014), + INTEL_E1000_ETHERNET_DEVICE(0x1015), + INTEL_E1000_ETHERNET_DEVICE(0x1016), + INTEL_E1000_ETHERNET_DEVICE(0x1017), + INTEL_E1000_ETHERNET_DEVICE(0x1018), + INTEL_E1000_ETHERNET_DEVICE(0x1019), + INTEL_E1000_ETHERNET_DEVICE(0x101A), + INTEL_E1000_ETHERNET_DEVICE(0x101D), + INTEL_E1000_ETHERNET_DEVICE(0x101E), + INTEL_E1000_ETHERNET_DEVICE(0x1026), + INTEL_E1000_ETHERNET_DEVICE(0x1027), + INTEL_E1000_ETHERNET_DEVICE(0x1028), + INTEL_E1000_ETHERNET_DEVICE(0x1075), + INTEL_E1000_ETHERNET_DEVICE(0x1076), + INTEL_E1000_ETHERNET_DEVICE(0x1077), + INTEL_E1000_ETHERNET_DEVICE(0x1078), + INTEL_E1000_ETHERNET_DEVICE(0x1079), + INTEL_E1000_ETHERNET_DEVICE(0x107A), + INTEL_E1000_ETHERNET_DEVICE(0x107B), + INTEL_E1000_ETHERNET_DEVICE(0x107C), + INTEL_E1000_ETHERNET_DEVICE(0x108A), + INTEL_E1000_ETHERNET_DEVICE(0x1099), + INTEL_E1000_ETHERNET_DEVICE(0x10B5), + /* required last entry */ + {0,} +}; + +MODULE_DEVICE_TABLE(pci, e1000_pci_tbl); + +int e1000_up(struct e1000_adapter *adapter); +void e1000_down(struct e1000_adapter *adapter); +void e1000_reinit_locked(struct e1000_adapter *adapter); +void e1000_reset(struct e1000_adapter *adapter); +int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +void e1000_free_all_rx_resources(struct e1000_adapter *adapter); +static int e1000_setup_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *txdr); +static int e1000_setup_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rxdr); +static void e1000_free_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static void e1000_free_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring); +void e1000_update_stats(struct e1000_adapter *adapter); + +static int e1000_init_module(void); +static void e1000_exit_module(void); +static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent); +static void __devexit e1000_remove(struct pci_dev *pdev); +static int e1000_alloc_queues(struct e1000_adapter *adapter); +static int e1000_sw_init(struct e1000_adapter *adapter); +static int e1000_open(struct net_device *netdev); +static int e1000_close(struct net_device *netdev); +static void e1000_configure_tx(struct e1000_adapter *adapter); +static void e1000_configure_rx(struct e1000_adapter *adapter); +static void e1000_setup_rctl(struct e1000_adapter *adapter); +static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter); +static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter); +static void e1000_clean_tx_ring(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static void e1000_clean_rx_ring(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring); +static void e1000_set_rx_mode(struct net_device *netdev); +static void e1000_update_phy_info(unsigned long data); +static void e1000_watchdog(unsigned long data); +static void e1000_82547_tx_fifo_stall(unsigned long data); +static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev); +static struct net_device_stats * e1000_get_stats(struct net_device *netdev); +static int e1000_change_mtu(struct net_device *netdev, int new_mtu); +static int e1000_set_mac(struct net_device *netdev, void *p); +static irqreturn_t e1000_intr(int irq, void *data); +static irqreturn_t e1000_intr_msi(int irq, void *data); +static bool e1000_clean_tx_irq(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static int e1000_clean(struct napi_struct *napi, int budget); +static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); +static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); +static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd); +static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd); +static void e1000_enter_82542_rst(struct e1000_adapter *adapter); +static void e1000_leave_82542_rst(struct e1000_adapter *adapter); +static void e1000_tx_timeout(struct net_device *dev); +static void e1000_reset_task(struct work_struct *work); +static void e1000_smartspeed(struct e1000_adapter *adapter); +static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, + struct sk_buff *skb); + +static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp); +static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); +static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); +static void e1000_restore_vlan(struct e1000_adapter *adapter); + +#ifdef CONFIG_PM +static int e1000_suspend(struct pci_dev *pdev, pm_message_t state); +static int e1000_resume(struct pci_dev *pdev); +#endif +static void e1000_shutdown(struct pci_dev *pdev); + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* for netdump / net console */ +static void e1000_netpoll (struct net_device *netdev); +#endif + +#define COPYBREAK_DEFAULT 256 +static unsigned int copybreak __read_mostly = COPYBREAK_DEFAULT; +module_param(copybreak, uint, 0644); +MODULE_PARM_DESC(copybreak, + "Maximum size of packet that is copied to a new buffer on receive"); + +static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state); +static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev); +static void e1000_io_resume(struct pci_dev *pdev); + +static struct pci_error_handlers e1000_err_handler = { + .error_detected = e1000_io_error_detected, + .slot_reset = e1000_io_slot_reset, + .resume = e1000_io_resume, +}; + +static struct pci_driver e1000_driver = { + .name = e1000_driver_name, + .id_table = e1000_pci_tbl, + .probe = e1000_probe, + .remove = __devexit_p(e1000_remove), +#ifdef CONFIG_PM + /* Power Managment Hooks */ + .suspend = e1000_suspend, + .resume = e1000_resume, +#endif + .shutdown = e1000_shutdown, + .err_handler = &e1000_err_handler +}; + +MODULE_AUTHOR("Intel Corporation, "); +MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + +/** + * e1000_init_module - Driver Registration Routine + * + * e1000_init_module is the first routine called when the driver is + * loaded. All it does is register with the PCI subsystem. + **/ + +static int __init e1000_init_module(void) +{ + int ret; + printk(KERN_INFO "%s - version %s\n", + e1000_driver_string, e1000_driver_version); + + printk(KERN_INFO "%s\n", e1000_copyright); + + ret = pci_register_driver(&e1000_driver); + if (copybreak != COPYBREAK_DEFAULT) { + if (copybreak == 0) + printk(KERN_INFO "e1000: copybreak disabled\n"); + else + printk(KERN_INFO "e1000: copybreak enabled for " + "packets <= %u bytes\n", copybreak); + } + return ret; +} + +module_init(e1000_init_module); + +/** + * e1000_exit_module - Driver Exit Cleanup Routine + * + * e1000_exit_module is called just before the driver is removed + * from memory. + **/ + +static void __exit e1000_exit_module(void) +{ + pci_unregister_driver(&e1000_driver); +} + +module_exit(e1000_exit_module); + +static int e1000_request_irq(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + irq_handler_t handler = e1000_intr; + int irq_flags = IRQF_SHARED; + int err; + + if (hw->mac_type >= e1000_82571) { + adapter->have_msi = !pci_enable_msi(adapter->pdev); + if (adapter->have_msi) { + handler = e1000_intr_msi; + irq_flags = 0; + } + } + + err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name, + netdev); + if (err) { + if (adapter->have_msi) + pci_disable_msi(adapter->pdev); + DPRINTK(PROBE, ERR, + "Unable to allocate interrupt Error: %d\n", err); + } + + return err; +} + +static void e1000_free_irq(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + + free_irq(adapter->pdev->irq, netdev); + + if (adapter->have_msi) + pci_disable_msi(adapter->pdev); +} + +/** + * e1000_irq_disable - Mask off interrupt generation on the NIC + * @adapter: board private structure + **/ + +static void e1000_irq_disable(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + ew32(IMC, ~0); + E1000_WRITE_FLUSH(); + synchronize_irq(adapter->pdev->irq); +} + +/** + * e1000_irq_enable - Enable default interrupt generation settings + * @adapter: board private structure + **/ + +static void e1000_irq_enable(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + ew32(IMS, IMS_ENABLE_MASK); + E1000_WRITE_FLUSH(); +} + +static void e1000_update_mng_vlan(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u16 vid = hw->mng_cookie.vlan_id; + u16 old_vid = adapter->mng_vlan_id; + if (adapter->vlgrp) { + if (!vlan_group_get_device(adapter->vlgrp, vid)) { + if (hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) { + e1000_vlan_rx_add_vid(netdev, vid); + adapter->mng_vlan_id = vid; + } else + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + + if ((old_vid != (u16)E1000_MNG_VLAN_NONE) && + (vid != old_vid) && + !vlan_group_get_device(adapter->vlgrp, old_vid)) + e1000_vlan_rx_kill_vid(netdev, old_vid); + } else + adapter->mng_vlan_id = vid; + } +} + +/** + * e1000_release_hw_control - release control of the h/w to f/w + * @adapter: address of board private structure + * + * e1000_release_hw_control resets {CTRL_EXT|FWSM}:DRV_LOAD bit. + * For ASF and Pass Through versions of f/w this means that the + * driver is no longer loaded. For AMT version (only with 82573) i + * of the f/w this means that the network i/f is closed. + * + **/ + +static void e1000_release_hw_control(struct e1000_adapter *adapter) +{ + u32 ctrl_ext; + u32 swsm; + struct e1000_hw *hw = &adapter->hw; + + /* Let firmware taken over control of h/w */ + switch (hw->mac_type) { + case e1000_82573: + swsm = er32(SWSM); + ew32(SWSM, swsm & ~E1000_SWSM_DRV_LOAD); + break; + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + case e1000_ich8lan: + ctrl_ext = er32(CTRL_EXT); + ew32(CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD); + break; + default: + break; + } +} + +/** + * e1000_get_hw_control - get control of the h/w from f/w + * @adapter: address of board private structure + * + * e1000_get_hw_control sets {CTRL_EXT|FWSM}:DRV_LOAD bit. + * For ASF and Pass Through versions of f/w this means that + * the driver is loaded. For AMT version (only with 82573) + * of the f/w this means that the network i/f is open. + * + **/ + +static void e1000_get_hw_control(struct e1000_adapter *adapter) +{ + u32 ctrl_ext; + u32 swsm; + struct e1000_hw *hw = &adapter->hw; + + /* Let firmware know the driver has taken over */ + switch (hw->mac_type) { + case e1000_82573: + swsm = er32(SWSM); + ew32(SWSM, swsm | E1000_SWSM_DRV_LOAD); + break; + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + case e1000_ich8lan: + ctrl_ext = er32(CTRL_EXT); + ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD); + break; + default: + break; + } +} + +static void e1000_init_manageability(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->en_mng_pt) { + u32 manc = er32(MANC); + + /* disable hardware interception of ARP */ + manc &= ~(E1000_MANC_ARP_EN); + + /* enable receiving management packets to the host */ + /* this will probably generate destination unreachable messages + * from the host OS, but the packets will be handled on SMBUS */ + if (hw->has_manc2h) { + u32 manc2h = er32(MANC2H); + + manc |= E1000_MANC_EN_MNG2HOST; +#define E1000_MNG2HOST_PORT_623 (1 << 5) +#define E1000_MNG2HOST_PORT_664 (1 << 6) + manc2h |= E1000_MNG2HOST_PORT_623; + manc2h |= E1000_MNG2HOST_PORT_664; + ew32(MANC2H, manc2h); + } + + ew32(MANC, manc); + } +} + +static void e1000_release_manageability(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->en_mng_pt) { + u32 manc = er32(MANC); + + /* re-enable hardware interception of ARP */ + manc |= E1000_MANC_ARP_EN; + + if (hw->has_manc2h) + manc &= ~E1000_MANC_EN_MNG2HOST; + + /* don't explicitly have to mess with MANC2H since + * MANC has an enable disable that gates MANC2H */ + + ew32(MANC, manc); + } +} + +/** + * e1000_configure - configure the hardware for RX and TX + * @adapter = private board structure + **/ +static void e1000_configure(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + int i; + + e1000_set_rx_mode(netdev); + + e1000_restore_vlan(adapter); + e1000_init_manageability(adapter); + + e1000_configure_tx(adapter); + e1000_setup_rctl(adapter); + e1000_configure_rx(adapter); + /* call E1000_DESC_UNUSED which always leaves + * at least 1 descriptor unused to make sure + * next_to_use != next_to_clean */ + for (i = 0; i < adapter->num_rx_queues; i++) { + struct e1000_rx_ring *ring = &adapter->rx_ring[i]; + adapter->alloc_rx_buf(adapter, ring, + E1000_DESC_UNUSED(ring)); + } + + adapter->tx_queue_len = netdev->tx_queue_len; +} + +int e1000_up(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* hardware has been reset, we need to reload some things */ + e1000_configure(adapter); + + clear_bit(__E1000_DOWN, &adapter->flags); + + napi_enable(&adapter->napi); + + e1000_irq_enable(adapter); + + netif_wake_queue(adapter->netdev); + + /* fire a link change interrupt to start the watchdog */ + ew32(ICS, E1000_ICS_LSC); + return 0; +} + +/** + * e1000_power_up_phy - restore link in case the phy was powered down + * @adapter: address of board private structure + * + * The phy may be powered down to save power and turn off link when the + * driver is unloaded and wake on lan is not enabled (among others) + * *** this routine MUST be followed by a call to e1000_reset *** + * + **/ + +void e1000_power_up_phy(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 mii_reg = 0; + + /* Just clear the power down bit to wake the phy back up */ + if (hw->media_type == e1000_media_type_copper) { + /* according to the manual, the phy will retain its + * settings across a power-down/up cycle */ + e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg); + mii_reg &= ~MII_CR_POWER_DOWN; + e1000_write_phy_reg(hw, PHY_CTRL, mii_reg); + } +} + +static void e1000_power_down_phy(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* Power down the PHY so no link is implied when interface is down * + * The PHY cannot be powered down if any of the following is true * + * (a) WoL is enabled + * (b) AMT is active + * (c) SoL/IDER session is active */ + if (!adapter->wol && hw->mac_type >= e1000_82540 && + hw->media_type == e1000_media_type_copper) { + u16 mii_reg = 0; + + switch (hw->mac_type) { + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (er32(MANC) & E1000_MANC_SMBUS_EN) + goto out; + break; + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + if (e1000_check_mng_mode(hw) || + e1000_check_phy_reset_block(hw)) + goto out; + break; + default: + goto out; + } + e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg); + mii_reg |= MII_CR_POWER_DOWN; + e1000_write_phy_reg(hw, PHY_CTRL, mii_reg); + mdelay(1); + } +out: + return; +} + +void e1000_down(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl, tctl; + + /* signal that we're down so the interrupt handler does not + * reschedule our watchdog timer */ + set_bit(__E1000_DOWN, &adapter->flags); + + /* disable receives in the hardware */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + /* flush and sleep below */ + + /* can be netif_tx_disable when NETIF_F_LLTX is removed */ + netif_stop_queue(netdev); + + /* disable transmits in the hardware */ + tctl = er32(TCTL); + tctl &= ~E1000_TCTL_EN; + ew32(TCTL, tctl); + /* flush both disables and wait for them to finish */ + E1000_WRITE_FLUSH(); + msleep(10); + + napi_disable(&adapter->napi); + + e1000_irq_disable(adapter); + + del_timer_sync(&adapter->tx_fifo_stall_timer); + del_timer_sync(&adapter->watchdog_timer); + del_timer_sync(&adapter->phy_info_timer); + + netdev->tx_queue_len = adapter->tx_queue_len; + adapter->link_speed = 0; + adapter->link_duplex = 0; + netif_carrier_off(netdev); + + e1000_reset(adapter); + e1000_clean_all_tx_rings(adapter); + e1000_clean_all_rx_rings(adapter); +} + +void e1000_reinit_locked(struct e1000_adapter *adapter) +{ + WARN_ON(in_interrupt()); + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + e1000_down(adapter); + e1000_up(adapter); + clear_bit(__E1000_RESETTING, &adapter->flags); +} + +void e1000_reset(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 pba = 0, tx_space, min_tx_space, min_rx_space; + u16 fc_high_water_mark = E1000_FC_HIGH_DIFF; + bool legacy_pba_adjust = false; + + /* Repartition Pba for greater than 9k mtu + * To take effect CTRL.RST is required. + */ + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + case e1000_82540: + case e1000_82541: + case e1000_82541_rev_2: + legacy_pba_adjust = true; + pba = E1000_PBA_48K; + break; + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + pba = E1000_PBA_48K; + break; + case e1000_82547: + case e1000_82547_rev_2: + legacy_pba_adjust = true; + pba = E1000_PBA_30K; + break; + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: + pba = E1000_PBA_38K; + break; + case e1000_82573: + pba = E1000_PBA_20K; + break; + case e1000_ich8lan: + pba = E1000_PBA_8K; + case e1000_undefined: + case e1000_num_macs: + break; + } + + if (legacy_pba_adjust) { + if (adapter->netdev->mtu > E1000_RXBUFFER_8192) + pba -= 8; /* allocate more FIFO for Tx */ + + if (hw->mac_type == e1000_82547) { + adapter->tx_fifo_head = 0; + adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT; + adapter->tx_fifo_size = + (E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT; + atomic_set(&adapter->tx_fifo_stall, 0); + } + } else if (hw->max_frame_size > MAXIMUM_ETHERNET_FRAME_SIZE) { + /* adjust PBA for jumbo frames */ + ew32(PBA, pba); + + /* To maintain wire speed transmits, the Tx FIFO should be + * large enough to accomodate two full transmit packets, + * rounded up to the next 1KB and expressed in KB. Likewise, + * the Rx FIFO should be large enough to accomodate at least + * one full receive packet and is similarly rounded up and + * expressed in KB. */ + pba = er32(PBA); + /* upper 16 bits has Tx packet buffer allocation size in KB */ + tx_space = pba >> 16; + /* lower 16 bits has Rx packet buffer allocation size in KB */ + pba &= 0xffff; + /* don't include ethernet FCS because hardware appends/strips */ + min_rx_space = adapter->netdev->mtu + ENET_HEADER_SIZE + + VLAN_TAG_SIZE; + min_tx_space = min_rx_space; + min_tx_space *= 2; + min_tx_space = ALIGN(min_tx_space, 1024); + min_tx_space >>= 10; + min_rx_space = ALIGN(min_rx_space, 1024); + min_rx_space >>= 10; + + /* If current Tx allocation is less than the min Tx FIFO size, + * and the min Tx FIFO size is less than the current Rx FIFO + * allocation, take space away from current Rx allocation */ + if (tx_space < min_tx_space && + ((min_tx_space - tx_space) < pba)) { + pba = pba - (min_tx_space - tx_space); + + /* PCI/PCIx hardware has PBA alignment constraints */ + switch (hw->mac_type) { + case e1000_82545 ... e1000_82546_rev_3: + pba &= ~(E1000_PBA_8K - 1); + break; + default: + break; + } + + /* if short on rx space, rx wins and must trump tx + * adjustment or use Early Receive if available */ + if (pba < min_rx_space) { + switch (hw->mac_type) { + case e1000_82573: + /* ERT enabled in e1000_configure_rx */ + break; + default: + pba = min_rx_space; + break; + } + } + } + } + + ew32(PBA, pba); + + /* flow control settings */ + /* Set the FC high water mark to 90% of the FIFO size. + * Required to clear last 3 LSB */ + fc_high_water_mark = ((pba * 9216)/10) & 0xFFF8; + /* We can't use 90% on small FIFOs because the remainder + * would be less than 1 full frame. In this case, we size + * it to allow at least a full frame above the high water + * mark. */ + if (pba < E1000_PBA_16K) + fc_high_water_mark = (pba * 1024) - 1600; + + hw->fc_high_water = fc_high_water_mark; + hw->fc_low_water = fc_high_water_mark - 8; + if (hw->mac_type == e1000_80003es2lan) + hw->fc_pause_time = 0xFFFF; + else + hw->fc_pause_time = E1000_FC_PAUSE_TIME; + hw->fc_send_xon = 1; + hw->fc = hw->original_fc; + + /* Allow time for pending master requests to run */ + e1000_reset_hw(hw); + if (hw->mac_type >= e1000_82544) + ew32(WUC, 0); + + if (e1000_init_hw(hw)) + DPRINTK(PROBE, ERR, "Hardware Error\n"); + e1000_update_mng_vlan(adapter); + + /* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */ + if (hw->mac_type >= e1000_82544 && + hw->mac_type <= e1000_82547_rev_2 && + hw->autoneg == 1 && + hw->autoneg_advertised == ADVERTISE_1000_FULL) { + u32 ctrl = er32(CTRL); + /* clear phy power management bit if we are in gig only mode, + * which if enabled will attempt negotiation to 100Mb, which + * can cause a loss of link at power off or driver unload */ + ctrl &= ~E1000_CTRL_SWDPIN3; + ew32(CTRL, ctrl); + } + + /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ + ew32(VET, ETHERNET_IEEE_VLAN_TYPE); + + e1000_reset_adaptive(hw); + e1000_phy_get_info(hw, &adapter->phy_info); + + if (!adapter->smart_power_down && + (hw->mac_type == e1000_82571 || + hw->mac_type == e1000_82572)) { + u16 phy_data = 0; + /* speed up time to link by disabling smart power down, ignore + * the return value of this function because there is nothing + * different we would do if it failed */ + e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, + &phy_data); + phy_data &= ~IGP02E1000_PM_SPD; + e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, + phy_data); + } + + e1000_release_manageability(adapter); +} + +/** + * Dump the eeprom for users having checksum issues + **/ +static void e1000_dump_eeprom(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct ethtool_eeprom eeprom; + const struct ethtool_ops *ops = netdev->ethtool_ops; + u8 *data; + int i; + u16 csum_old, csum_new = 0; + + eeprom.len = ops->get_eeprom_len(netdev); + eeprom.offset = 0; + + data = kmalloc(eeprom.len, GFP_KERNEL); + if (!data) { + printk(KERN_ERR "Unable to allocate memory to dump EEPROM" + " data\n"); + return; + } + + ops->get_eeprom(netdev, &eeprom, data); + + csum_old = (data[EEPROM_CHECKSUM_REG * 2]) + + (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8); + for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2) + csum_new += data[i] + (data[i + 1] << 8); + csum_new = EEPROM_SUM - csum_new; + + printk(KERN_ERR "/*********************/\n"); + printk(KERN_ERR "Current EEPROM Checksum : 0x%04x\n", csum_old); + printk(KERN_ERR "Calculated : 0x%04x\n", csum_new); + + printk(KERN_ERR "Offset Values\n"); + printk(KERN_ERR "======== ======\n"); + print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0); + + printk(KERN_ERR "Include this output when contacting your support " + "provider.\n"); + printk(KERN_ERR "This is not a software error! Something bad " + "happened to your hardware or\n"); + printk(KERN_ERR "EEPROM image. Ignoring this " + "problem could result in further problems,\n"); + printk(KERN_ERR "possibly loss of data, corruption or system hangs!\n"); + printk(KERN_ERR "The MAC Address will be reset to 00:00:00:00:00:00, " + "which is invalid\n"); + printk(KERN_ERR "and requires you to set the proper MAC " + "address manually before continuing\n"); + printk(KERN_ERR "to enable this network device.\n"); + printk(KERN_ERR "Please inspect the EEPROM dump and report the issue " + "to your hardware vendor\n"); + printk(KERN_ERR "or Intel Customer Support.\n"); + printk(KERN_ERR "/*********************/\n"); + + kfree(data); +} + +/** + * e1000_is_need_ioport - determine if an adapter needs ioport resources or not + * @pdev: PCI device information struct + * + * Return true if an adapter needs ioport resources + **/ +static int e1000_is_need_ioport(struct pci_dev *pdev) +{ + switch (pdev->device) { + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541ER_LOM: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + return true; + default: + return false; + } +} + +static const struct net_device_ops e1000_netdev_ops = { + .ndo_open = e1000_open, + .ndo_stop = e1000_close, + .ndo_start_xmit = e1000_xmit_frame, + .ndo_get_stats = e1000_get_stats, + .ndo_set_rx_mode = e1000_set_rx_mode, + .ndo_set_mac_address = e1000_set_mac, + .ndo_tx_timeout = e1000_tx_timeout, + .ndo_change_mtu = e1000_change_mtu, + .ndo_do_ioctl = e1000_ioctl, + .ndo_validate_addr = eth_validate_addr, + + .ndo_vlan_rx_register = e1000_vlan_rx_register, + .ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = e1000_netpoll, +#endif +}; + +/** + * e1000_probe - Device Initialization Routine + * @pdev: PCI device information struct + * @ent: entry in e1000_pci_tbl + * + * Returns 0 on success, negative on failure + * + * e1000_probe initializes an adapter identified by a pci_dev structure. + * The OS initialization, configuring of the adapter private structure, + * and a hardware reset occur. + **/ +static int __devinit e1000_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *netdev; + struct e1000_adapter *adapter; + struct e1000_hw *hw; + + static int cards_found = 0; + static int global_quad_port_a = 0; /* global ksp3 port a indication */ + int i, err, pci_using_dac; + u16 eeprom_data = 0; + u16 eeprom_apme_mask = E1000_EEPROM_APME; + int bars, need_ioport; + + /* do not allocate ioport bars when not needed */ + need_ioport = e1000_is_need_ioport(pdev); + if (need_ioport) { + bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO); + err = pci_enable_device(pdev); + } else { + bars = pci_select_bars(pdev, IORESOURCE_MEM); + err = pci_enable_device_mem(pdev); + } + if (err) + return err; + + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && + !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { + pci_using_dac = 1; + } else { + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + E1000_ERR("No usable DMA configuration, " + "aborting\n"); + goto err_dma; + } + } + pci_using_dac = 0; + } + + err = pci_request_selected_regions(pdev, bars, e1000_driver_name); + if (err) + goto err_pci_reg; + + pci_set_master(pdev); + + err = -ENOMEM; + netdev = alloc_etherdev(sizeof(struct e1000_adapter)); + if (!netdev) + goto err_alloc_etherdev; + + SET_NETDEV_DEV(netdev, &pdev->dev); + + pci_set_drvdata(pdev, netdev); + adapter = netdev_priv(netdev); + adapter->netdev = netdev; + adapter->pdev = pdev; + adapter->msg_enable = (1 << debug) - 1; + adapter->bars = bars; + adapter->need_ioport = need_ioport; + + hw = &adapter->hw; + hw->back = adapter; + + err = -EIO; + hw->hw_addr = pci_ioremap_bar(pdev, BAR_0); + if (!hw->hw_addr) + goto err_ioremap; + + if (adapter->need_ioport) { + for (i = BAR_1; i <= BAR_5; i++) { + if (pci_resource_len(pdev, i) == 0) + continue; + if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { + hw->io_base = pci_resource_start(pdev, i); + break; + } + } + } + + netdev->netdev_ops = &e1000_netdev_ops; + e1000_set_ethtool_ops(netdev); + netdev->watchdog_timeo = 5 * HZ; + netif_napi_add(netdev, &adapter->napi, e1000_clean, 64); + + strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); + + adapter->bd_number = cards_found; + + /* setup the private structure */ + + err = e1000_sw_init(adapter); + if (err) + goto err_sw_init; + + err = -EIO; + /* Flash BAR mapping must happen after e1000_sw_init + * because it depends on mac_type */ + if ((hw->mac_type == e1000_ich8lan) && + (pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) { + hw->flash_address = pci_ioremap_bar(pdev, 1); + if (!hw->flash_address) + goto err_flashmap; + } + + if (e1000_check_phy_reset_block(hw)) + DPRINTK(PROBE, INFO, "PHY reset is blocked due to SOL/IDER session.\n"); + + if (hw->mac_type >= e1000_82543) { + netdev->features = NETIF_F_SG | + NETIF_F_HW_CSUM | + NETIF_F_HW_VLAN_TX | + NETIF_F_HW_VLAN_RX | + NETIF_F_HW_VLAN_FILTER; + if (hw->mac_type == e1000_ich8lan) + netdev->features &= ~NETIF_F_HW_VLAN_FILTER; + } + + if ((hw->mac_type >= e1000_82544) && + (hw->mac_type != e1000_82547)) + netdev->features |= NETIF_F_TSO; + + if (hw->mac_type > e1000_82547_rev_2) + netdev->features |= NETIF_F_TSO6; + if (pci_using_dac) + netdev->features |= NETIF_F_HIGHDMA; + + netdev->vlan_features |= NETIF_F_TSO; + netdev->vlan_features |= NETIF_F_TSO6; + netdev->vlan_features |= NETIF_F_HW_CSUM; + netdev->vlan_features |= NETIF_F_SG; + + adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw); + + /* initialize eeprom parameters */ + if (e1000_init_eeprom_params(hw)) { + E1000_ERR("EEPROM initialization failed\n"); + goto err_eeprom; + } + + /* before reading the EEPROM, reset the controller to + * put the device in a known good starting state */ + + e1000_reset_hw(hw); + + /* make sure the EEPROM is good */ + if (e1000_validate_eeprom_checksum(hw) < 0) { + DPRINTK(PROBE, ERR, "The EEPROM Checksum Is Not Valid\n"); + e1000_dump_eeprom(adapter); + /* + * set MAC address to all zeroes to invalidate and temporary + * disable this device for the user. This blocks regular + * traffic while still permitting ethtool ioctls from reaching + * the hardware as well as allowing the user to run the + * interface after manually setting a hw addr using + * `ip set address` + */ + memset(hw->mac_addr, 0, netdev->addr_len); + } else { + /* copy the MAC address out of the EEPROM */ + if (e1000_read_mac_addr(hw)) + DPRINTK(PROBE, ERR, "EEPROM Read Error\n"); + } + /* don't block initalization here due to bad MAC address */ + memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len); + memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len); + + if (!is_valid_ether_addr(netdev->perm_addr)) + DPRINTK(PROBE, ERR, "Invalid MAC Address\n"); + + e1000_get_bus_info(hw); + + init_timer(&adapter->tx_fifo_stall_timer); + adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall; + adapter->tx_fifo_stall_timer.data = (unsigned long)adapter; + + init_timer(&adapter->watchdog_timer); + adapter->watchdog_timer.function = &e1000_watchdog; + adapter->watchdog_timer.data = (unsigned long) adapter; + + init_timer(&adapter->phy_info_timer); + adapter->phy_info_timer.function = &e1000_update_phy_info; + adapter->phy_info_timer.data = (unsigned long)adapter; + + INIT_WORK(&adapter->reset_task, e1000_reset_task); + + e1000_check_options(adapter); + + /* Initial Wake on LAN setting + * If APM wake is enabled in the EEPROM, + * enable the ACPI Magic Packet filter + */ + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + break; + case e1000_82544: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data); + eeprom_apme_mask = E1000_EEPROM_82544_APM; + break; + case e1000_ich8lan: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL1_REG, 1, &eeprom_data); + eeprom_apme_mask = E1000_EEPROM_ICH8_APME; + break; + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82571: + case e1000_80003es2lan: + if (er32(STATUS) & E1000_STATUS_FUNC_1){ + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data); + break; + } + /* Fall Through */ + default: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data); + break; + } + if (eeprom_data & eeprom_apme_mask) + adapter->eeprom_wol |= E1000_WUFC_MAG; + + /* now that we have the eeprom settings, apply the special cases + * where the eeprom may be wrong or the board simply won't support + * wake on lan on a particular port */ + switch (pdev->device) { + case E1000_DEV_ID_82546GB_PCIE: + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82571EB_FIBER: + /* Wake events only supported on port A for dual fiber + * regardless of eeprom setting */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + case E1000_DEV_ID_82571EB_QUAD_COPPER: + case E1000_DEV_ID_82571EB_QUAD_FIBER: + case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE: + case E1000_DEV_ID_82571PT_QUAD_COPPER: + /* if quad port adapter, disable WoL on all but port A */ + if (global_quad_port_a != 0) + adapter->eeprom_wol = 0; + else + adapter->quad_port_a = 1; + /* Reset for multiple quad port adapters */ + if (++global_quad_port_a == 4) + global_quad_port_a = 0; + break; + } + + /* initialize the wol settings based on the eeprom settings */ + adapter->wol = adapter->eeprom_wol; + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + + /* print bus type/speed/width info */ + DPRINTK(PROBE, INFO, "(PCI%s:%s:%s) ", + ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : + (hw->bus_type == e1000_bus_type_pci_express ? " Express":"")), + ((hw->bus_speed == e1000_bus_speed_2500) ? "2.5Gb/s" : + (hw->bus_speed == e1000_bus_speed_133) ? "133MHz" : + (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" : + (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" : + (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"), + ((hw->bus_width == e1000_bus_width_64) ? "64-bit" : + (hw->bus_width == e1000_bus_width_pciex_4) ? "Width x4" : + (hw->bus_width == e1000_bus_width_pciex_1) ? "Width x1" : + "32-bit")); + + printk("%pM\n", netdev->dev_addr); + + if (hw->bus_type == e1000_bus_type_pci_express) { + DPRINTK(PROBE, WARNING, "This device (id %04x:%04x) will no " + "longer be supported by this driver in the future.\n", + pdev->vendor, pdev->device); + DPRINTK(PROBE, WARNING, "please use the \"e1000e\" " + "driver instead.\n"); + } + + /* reset the hardware with the new settings */ + e1000_reset(adapter); + + /* If the controller is 82573 and f/w is AMT, do not set + * DRV_LOAD until the interface is up. For all other cases, + * let the f/w know that the h/w is now under the control + * of the driver. */ + if (hw->mac_type != e1000_82573 || + !e1000_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + + strcpy(netdev->name, "eth%d"); + err = register_netdev(netdev); + if (err) + goto err_register; + + /* carrier off reporting is important to ethtool even BEFORE open */ + netif_carrier_off(netdev); + + DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n"); + + cards_found++; + return 0; + +err_register: + e1000_release_hw_control(adapter); +err_eeprom: + if (!e1000_check_phy_reset_block(hw)) + e1000_phy_hw_reset(hw); + + if (hw->flash_address) + iounmap(hw->flash_address); +err_flashmap: + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); +err_sw_init: + iounmap(hw->hw_addr); +err_ioremap: + free_netdev(netdev); +err_alloc_etherdev: + pci_release_selected_regions(pdev, bars); +err_pci_reg: +err_dma: + pci_disable_device(pdev); + return err; +} + +/** + * e1000_remove - Device Removal Routine + * @pdev: PCI device information struct + * + * e1000_remove is called by the PCI subsystem to alert the driver + * that it should release a PCI device. The could be caused by a + * Hot-Plug event, or because the driver is going to be removed from + * memory. + **/ + +static void __devexit e1000_remove(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + cancel_work_sync(&adapter->reset_task); + + e1000_release_manageability(adapter); + + /* Release control of h/w to f/w. If f/w is AMT enabled, this + * would have already happened in close and is redundant. */ + e1000_release_hw_control(adapter); + + unregister_netdev(netdev); + + if (!e1000_check_phy_reset_block(hw)) + e1000_phy_hw_reset(hw); + + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); + + iounmap(hw->hw_addr); + if (hw->flash_address) + iounmap(hw->flash_address); + pci_release_selected_regions(pdev, adapter->bars); + + free_netdev(netdev); + + pci_disable_device(pdev); +} + +/** + * e1000_sw_init - Initialize general software structures (struct e1000_adapter) + * @adapter: board private structure to initialize + * + * e1000_sw_init initializes the Adapter private data structure. + * Fields are initialized based on PCI device information and + * OS network device settings (MTU size). + **/ + +static int __devinit e1000_sw_init(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + + /* PCI config space info */ + + hw->vendor_id = pdev->vendor; + hw->device_id = pdev->device; + hw->subsystem_vendor_id = pdev->subsystem_vendor; + hw->subsystem_id = pdev->subsystem_device; + hw->revision_id = pdev->revision; + + pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word); + + adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; + hw->max_frame_size = netdev->mtu + + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE; + hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE; + + /* identify the MAC */ + + if (e1000_set_mac_type(hw)) { + DPRINTK(PROBE, ERR, "Unknown MAC Type\n"); + return -EIO; + } + + switch (hw->mac_type) { + default: + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + hw->phy_init_script = 1; + break; + } + + e1000_set_media_type(hw); + + hw->wait_autoneg_complete = false; + hw->tbi_compatibility_en = true; + hw->adaptive_ifs = true; + + /* Copper options */ + + if (hw->media_type == e1000_media_type_copper) { + hw->mdix = AUTO_ALL_MODES; + hw->disable_polarity_correction = false; + hw->master_slave = E1000_MASTER_SLAVE; + } + + adapter->num_tx_queues = 1; + adapter->num_rx_queues = 1; + + if (e1000_alloc_queues(adapter)) { + DPRINTK(PROBE, ERR, "Unable to allocate memory for queues\n"); + return -ENOMEM; + } + + /* Explicitly disable IRQ since the NIC can be in any state. */ + e1000_irq_disable(adapter); + + spin_lock_init(&adapter->stats_lock); + + set_bit(__E1000_DOWN, &adapter->flags); + + return 0; +} + +/** + * e1000_alloc_queues - Allocate memory for all rings + * @adapter: board private structure to initialize + * + * We allocate one ring per queue at run-time since we don't know the + * number of queues at compile-time. + **/ + +static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter) +{ + adapter->tx_ring = kcalloc(adapter->num_tx_queues, + sizeof(struct e1000_tx_ring), GFP_KERNEL); + if (!adapter->tx_ring) + return -ENOMEM; + + adapter->rx_ring = kcalloc(adapter->num_rx_queues, + sizeof(struct e1000_rx_ring), GFP_KERNEL); + if (!adapter->rx_ring) { + kfree(adapter->tx_ring); + return -ENOMEM; + } + + return E1000_SUCCESS; +} + +/** + * e1000_open - Called when a network interface is made active + * @netdev: network interface device structure + * + * Returns 0 on success, negative value on failure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). At this point all resources needed + * for transmit and receive operations are allocated, the interrupt + * handler is registered with the OS, the watchdog timer is started, + * and the stack is notified that the interface is ready. + **/ + +static int e1000_open(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int err; + + /* disallow open during test */ + if (test_bit(__E1000_TESTING, &adapter->flags)) + return -EBUSY; + + netif_carrier_off(netdev); + + /* allocate transmit descriptors */ + err = e1000_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* allocate receive descriptors */ + err = e1000_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + + e1000_power_up_phy(adapter); + + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) { + e1000_update_mng_vlan(adapter); + } + + /* If AMT is enabled, let the firmware know that the network + * interface is now open */ + if (hw->mac_type == e1000_82573 && + e1000_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + + /* before we allocate an interrupt, we must be ready to handle it. + * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt + * as soon as we call pci_request_irq, so we have to setup our + * clean_rx handler before we do so. */ + e1000_configure(adapter); + + err = e1000_request_irq(adapter); + if (err) + goto err_req_irq; + + /* From here on the code is the same as e1000_up() */ + clear_bit(__E1000_DOWN, &adapter->flags); + + napi_enable(&adapter->napi); + + e1000_irq_enable(adapter); + + netif_start_queue(netdev); + + /* fire a link status change interrupt to start the watchdog */ + ew32(ICS, E1000_ICS_LSC); + + return E1000_SUCCESS; + +err_req_irq: + e1000_release_hw_control(adapter); + e1000_power_down_phy(adapter); + e1000_free_all_rx_resources(adapter); +err_setup_rx: + e1000_free_all_tx_resources(adapter); +err_setup_tx: + e1000_reset(adapter); + + return err; +} + +/** + * e1000_close - Disables a network interface + * @netdev: network interface device structure + * + * Returns 0, this is not allowed to fail + * + * The close entry point is called when an interface is de-activated + * by the OS. The hardware is still under the drivers control, but + * needs to be disabled. A global MAC reset is issued to stop the + * hardware, and all transmit and receive resources are freed. + **/ + +static int e1000_close(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); + e1000_down(adapter); + e1000_power_down_phy(adapter); + e1000_free_irq(adapter); + + e1000_free_all_tx_resources(adapter); + e1000_free_all_rx_resources(adapter); + + /* kill manageability vlan ID if supported, but not if a vlan with + * the same ID is registered on the host OS (let 8021q kill it) */ + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + !(adapter->vlgrp && + vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) { + e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); + } + + /* If AMT is enabled, let the firmware know that the network + * interface is now closed */ + if (hw->mac_type == e1000_82573 && + e1000_check_mng_mode(hw)) + e1000_release_hw_control(adapter); + + return 0; +} + +/** + * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary + * @adapter: address of board private structure + * @start: address of beginning of memory + * @len: length of memory + **/ +static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start, + unsigned long len) +{ + struct e1000_hw *hw = &adapter->hw; + unsigned long begin = (unsigned long)start; + unsigned long end = begin + len; + + /* First rev 82545 and 82546 need to not allow any memory + * write location to cross 64k boundary due to errata 23 */ + if (hw->mac_type == e1000_82545 || + hw->mac_type == e1000_82546) { + return ((begin ^ (end - 1)) >> 16) != 0 ? false : true; + } + + return true; +} + +/** + * e1000_setup_tx_resources - allocate Tx resources (Descriptors) + * @adapter: board private structure + * @txdr: tx descriptor ring (for a specific queue) to setup + * + * Return 0 on success, negative on failure + **/ + +static int e1000_setup_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *txdr) +{ + struct pci_dev *pdev = adapter->pdev; + int size; + + size = sizeof(struct e1000_buffer) * txdr->count; + txdr->buffer_info = vmalloc(size); + if (!txdr->buffer_info) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the transmit descriptor ring\n"); + return -ENOMEM; + } + memset(txdr->buffer_info, 0, size); + + /* round up to nearest 4K */ + + txdr->size = txdr->count * sizeof(struct e1000_tx_desc); + txdr->size = ALIGN(txdr->size, 4096); + + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + if (!txdr->desc) { +setup_tx_desc_die: + vfree(txdr->buffer_info); + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the transmit descriptor ring\n"); + return -ENOMEM; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { + void *olddesc = txdr->desc; + dma_addr_t olddma = txdr->dma; + DPRINTK(TX_ERR, ERR, "txdr align check failed: %u bytes " + "at %p\n", txdr->size, txdr->desc); + /* Try again, without freeing the previous */ + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + /* Failed allocation, critical failure */ + if (!txdr->desc) { + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + goto setup_tx_desc_die; + } + + if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { + /* give up */ + pci_free_consistent(pdev, txdr->size, txdr->desc, + txdr->dma); + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate aligned memory " + "for the transmit descriptor ring\n"); + vfree(txdr->buffer_info); + return -ENOMEM; + } else { + /* Free old allocation, new allocation was successful */ + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + } + } + memset(txdr->desc, 0, txdr->size); + + txdr->next_to_use = 0; + txdr->next_to_clean = 0; + + return 0; +} + +/** + * e1000_setup_all_tx_resources - wrapper to allocate Tx resources + * (Descriptors) for all queues + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ + +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_tx_queues; i++) { + err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]); + if (err) { + DPRINTK(PROBE, ERR, + "Allocation for Tx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_tx_resources(adapter, + &adapter->tx_ring[i]); + break; + } + } + + return err; +} + +/** + * e1000_configure_tx - Configure 8254x Transmit Unit after Reset + * @adapter: board private structure + * + * Configure the Tx unit of the MAC after a reset. + **/ + +static void e1000_configure_tx(struct e1000_adapter *adapter) +{ + u64 tdba; + struct e1000_hw *hw = &adapter->hw; + u32 tdlen, tctl, tipg, tarc; + u32 ipgr1, ipgr2; + + /* Setup the HW Tx Head and Tail descriptor pointers */ + + switch (adapter->num_tx_queues) { + case 1: + default: + tdba = adapter->tx_ring[0].dma; + tdlen = adapter->tx_ring[0].count * + sizeof(struct e1000_tx_desc); + ew32(TDLEN, tdlen); + ew32(TDBAH, (tdba >> 32)); + ew32(TDBAL, (tdba & 0x00000000ffffffffULL)); + ew32(TDT, 0); + ew32(TDH, 0); + adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH); + adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT); + break; + } + + /* Set the default values for the Tx Inter Packet Gap timer */ + if (hw->mac_type <= e1000_82547_rev_2 && + (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes)) + tipg = DEFAULT_82543_TIPG_IPGT_FIBER; + else + tipg = DEFAULT_82543_TIPG_IPGT_COPPER; + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + tipg = DEFAULT_82542_TIPG_IPGT; + ipgr1 = DEFAULT_82542_TIPG_IPGR1; + ipgr2 = DEFAULT_82542_TIPG_IPGR2; + break; + case e1000_80003es2lan: + ipgr1 = DEFAULT_82543_TIPG_IPGR1; + ipgr2 = DEFAULT_80003ES2LAN_TIPG_IPGR2; + break; + default: + ipgr1 = DEFAULT_82543_TIPG_IPGR1; + ipgr2 = DEFAULT_82543_TIPG_IPGR2; + break; + } + tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT; + tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT; + ew32(TIPG, tipg); + + /* Set the Tx Interrupt Delay register */ + + ew32(TIDV, adapter->tx_int_delay); + if (hw->mac_type >= e1000_82540) + ew32(TADV, adapter->tx_abs_int_delay); + + /* Program the Transmit Control Register */ + + tctl = er32(TCTL); + tctl &= ~E1000_TCTL_CT; + tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | + (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); + + if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) { + tarc = er32(TARC0); + /* set the speed mode bit, we'll clear it if we're not at + * gigabit link later */ + tarc |= (1 << 21); + ew32(TARC0, tarc); + } else if (hw->mac_type == e1000_80003es2lan) { + tarc = er32(TARC0); + tarc |= 1; + ew32(TARC0, tarc); + tarc = er32(TARC1); + tarc |= 1; + ew32(TARC1, tarc); + } + + e1000_config_collision_dist(hw); + + /* Setup Transmit Descriptor Settings for eop descriptor */ + adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS; + + /* only set IDE if we are delaying interrupts using the timers */ + if (adapter->tx_int_delay) + adapter->txd_cmd |= E1000_TXD_CMD_IDE; + + if (hw->mac_type < e1000_82543) + adapter->txd_cmd |= E1000_TXD_CMD_RPS; + else + adapter->txd_cmd |= E1000_TXD_CMD_RS; + + /* Cache if we're 82544 running in PCI-X because we'll + * need this to apply a workaround later in the send path. */ + if (hw->mac_type == e1000_82544 && + hw->bus_type == e1000_bus_type_pcix) + adapter->pcix_82544 = 1; + + ew32(TCTL, tctl); + +} + +/** + * e1000_setup_rx_resources - allocate Rx resources (Descriptors) + * @adapter: board private structure + * @rxdr: rx descriptor ring (for a specific queue) to setup + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_setup_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rxdr) +{ + struct e1000_hw *hw = &adapter->hw; + struct pci_dev *pdev = adapter->pdev; + int size, desc_len; + + size = sizeof(struct e1000_buffer) * rxdr->count; + rxdr->buffer_info = vmalloc(size); + if (!rxdr->buffer_info) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the receive descriptor ring\n"); + return -ENOMEM; + } + memset(rxdr->buffer_info, 0, size); + + if (hw->mac_type <= e1000_82547_rev_2) + desc_len = sizeof(struct e1000_rx_desc); + else + desc_len = sizeof(union e1000_rx_desc_packet_split); + + /* Round up to nearest 4K */ + + rxdr->size = rxdr->count * desc_len; + rxdr->size = ALIGN(rxdr->size, 4096); + + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + + if (!rxdr->desc) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the receive descriptor ring\n"); +setup_rx_desc_die: + vfree(rxdr->buffer_info); + return -ENOMEM; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { + void *olddesc = rxdr->desc; + dma_addr_t olddma = rxdr->dma; + DPRINTK(RX_ERR, ERR, "rxdr align check failed: %u bytes " + "at %p\n", rxdr->size, rxdr->desc); + /* Try again, without freeing the previous */ + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + /* Failed allocation, critical failure */ + if (!rxdr->desc) { + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate memory " + "for the receive descriptor ring\n"); + goto setup_rx_desc_die; + } + + if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { + /* give up */ + pci_free_consistent(pdev, rxdr->size, rxdr->desc, + rxdr->dma); + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate aligned memory " + "for the receive descriptor ring\n"); + goto setup_rx_desc_die; + } else { + /* Free old allocation, new allocation was successful */ + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + } + } + memset(rxdr->desc, 0, rxdr->size); + + rxdr->next_to_clean = 0; + rxdr->next_to_use = 0; + + return 0; +} + +/** + * e1000_setup_all_rx_resources - wrapper to allocate Rx resources + * (Descriptors) for all queues + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ + +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_rx_queues; i++) { + err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]); + if (err) { + DPRINTK(PROBE, ERR, + "Allocation for Rx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_rx_resources(adapter, + &adapter->rx_ring[i]); + break; + } + } + + return err; +} + +/** + * e1000_setup_rctl - configure the receive control registers + * @adapter: Board private structure + **/ +static void e1000_setup_rctl(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + + rctl = er32(RCTL); + + rctl &= ~(3 << E1000_RCTL_MO_SHIFT); + + rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | + E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); + + if (hw->tbi_compatibility_on == 1) + rctl |= E1000_RCTL_SBP; + else + rctl &= ~E1000_RCTL_SBP; + + if (adapter->netdev->mtu <= ETH_DATA_LEN) + rctl &= ~E1000_RCTL_LPE; + else + rctl |= E1000_RCTL_LPE; + + /* Setup buffer sizes */ + rctl &= ~E1000_RCTL_SZ_4096; + rctl |= E1000_RCTL_BSEX; + switch (adapter->rx_buffer_len) { + case E1000_RXBUFFER_256: + rctl |= E1000_RCTL_SZ_256; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_512: + rctl |= E1000_RCTL_SZ_512; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_1024: + rctl |= E1000_RCTL_SZ_1024; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_2048: + default: + rctl |= E1000_RCTL_SZ_2048; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_4096: + rctl |= E1000_RCTL_SZ_4096; + break; + case E1000_RXBUFFER_8192: + rctl |= E1000_RCTL_SZ_8192; + break; + case E1000_RXBUFFER_16384: + rctl |= E1000_RCTL_SZ_16384; + break; + } + + ew32(RCTL, rctl); +} + +/** + * e1000_configure_rx - Configure 8254x Receive Unit after Reset + * @adapter: board private structure + * + * Configure the Rx unit of the MAC after a reset. + **/ + +static void e1000_configure_rx(struct e1000_adapter *adapter) +{ + u64 rdba; + struct e1000_hw *hw = &adapter->hw; + u32 rdlen, rctl, rxcsum, ctrl_ext; + + rdlen = adapter->rx_ring[0].count * + sizeof(struct e1000_rx_desc); + adapter->clean_rx = e1000_clean_rx_irq; + adapter->alloc_rx_buf = e1000_alloc_rx_buffers; + + /* disable receives while setting up the descriptors */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + + /* set the Receive Delay Timer Register */ + ew32(RDTR, adapter->rx_int_delay); + + if (hw->mac_type >= e1000_82540) { + ew32(RADV, adapter->rx_abs_int_delay); + if (adapter->itr_setting != 0) + ew32(ITR, 1000000000 / (adapter->itr * 256)); + } + + if (hw->mac_type >= e1000_82571) { + ctrl_ext = er32(CTRL_EXT); + /* Reset delay timers after every interrupt */ + ctrl_ext |= E1000_CTRL_EXT_INT_TIMER_CLR; + /* Auto-Mask interrupts upon ICR access */ + ctrl_ext |= E1000_CTRL_EXT_IAME; + ew32(IAM, 0xffffffff); + ew32(CTRL_EXT, ctrl_ext); + E1000_WRITE_FLUSH(); + } + + /* Setup the HW Rx Head and Tail Descriptor Pointers and + * the Base and Length of the Rx Descriptor Ring */ + switch (adapter->num_rx_queues) { + case 1: + default: + rdba = adapter->rx_ring[0].dma; + ew32(RDLEN, rdlen); + ew32(RDBAH, (rdba >> 32)); + ew32(RDBAL, (rdba & 0x00000000ffffffffULL)); + ew32(RDT, 0); + ew32(RDH, 0); + adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH); + adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT); + break; + } + + /* Enable 82543 Receive Checksum Offload for TCP and UDP */ + if (hw->mac_type >= e1000_82543) { + rxcsum = er32(RXCSUM); + if (adapter->rx_csum) + rxcsum |= E1000_RXCSUM_TUOFL; + else + /* don't need to clear IPPCSE as it defaults to 0 */ + rxcsum &= ~E1000_RXCSUM_TUOFL; + ew32(RXCSUM, rxcsum); + } + + /* Enable Receives */ + ew32(RCTL, rctl); +} + +/** + * e1000_free_tx_resources - Free Tx Resources per Queue + * @adapter: board private structure + * @tx_ring: Tx descriptor ring for a specific queue + * + * Free all transmit software resources + **/ + +static void e1000_free_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct pci_dev *pdev = adapter->pdev; + + e1000_clean_tx_ring(adapter, tx_ring); + + vfree(tx_ring->buffer_info); + tx_ring->buffer_info = NULL; + + pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma); + + tx_ring->desc = NULL; +} + +/** + * e1000_free_all_tx_resources - Free Tx Resources for All Queues + * @adapter: board private structure + * + * Free all transmit software resources + **/ + +void e1000_free_all_tx_resources(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + e1000_free_tx_resources(adapter, &adapter->tx_ring[i]); +} + +static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter, + struct e1000_buffer *buffer_info) +{ + buffer_info->dma = 0; + if (buffer_info->skb) { + skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb, + DMA_TO_DEVICE); + dev_kfree_skb_any(buffer_info->skb); + buffer_info->skb = NULL; + } + buffer_info->time_stamp = 0; + /* buffer_info must be completely set up in the transmit path */ +} + +/** + * e1000_clean_tx_ring - Free Tx Buffers + * @adapter: board private structure + * @tx_ring: ring to be cleaned + **/ + +static void e1000_clean_tx_ring(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_buffer *buffer_info; + unsigned long size; + unsigned int i; + + /* Free all the Tx ring sk_buffs */ + + for (i = 0; i < tx_ring->count; i++) { + buffer_info = &tx_ring->buffer_info[i]; + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + } + + size = sizeof(struct e1000_buffer) * tx_ring->count; + memset(tx_ring->buffer_info, 0, size); + + /* Zero out the descriptor ring */ + + memset(tx_ring->desc, 0, tx_ring->size); + + tx_ring->next_to_use = 0; + tx_ring->next_to_clean = 0; + tx_ring->last_tx_tso = 0; + + writel(0, hw->hw_addr + tx_ring->tdh); + writel(0, hw->hw_addr + tx_ring->tdt); +} + +/** + * e1000_clean_all_tx_rings - Free Tx Buffers for all queues + * @adapter: board private structure + **/ + +static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]); +} + +/** + * e1000_free_rx_resources - Free Rx Resources + * @adapter: board private structure + * @rx_ring: ring to clean the resources from + * + * Free all receive software resources + **/ + +static void e1000_free_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring) +{ + struct pci_dev *pdev = adapter->pdev; + + e1000_clean_rx_ring(adapter, rx_ring); + + vfree(rx_ring->buffer_info); + rx_ring->buffer_info = NULL; + + pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma); + + rx_ring->desc = NULL; +} + +/** + * e1000_free_all_rx_resources - Free Rx Resources for All Queues + * @adapter: board private structure + * + * Free all receive software resources + **/ + +void e1000_free_all_rx_resources(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + e1000_free_rx_resources(adapter, &adapter->rx_ring[i]); +} + +/** + * e1000_clean_rx_ring - Free Rx Buffers per Queue + * @adapter: board private structure + * @rx_ring: ring to free buffers from + **/ + +static void e1000_clean_rx_ring(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_buffer *buffer_info; + struct pci_dev *pdev = adapter->pdev; + unsigned long size; + unsigned int i; + + /* Free all the Rx ring sk_buffs */ + for (i = 0; i < rx_ring->count; i++) { + buffer_info = &rx_ring->buffer_info[i]; + if (buffer_info->dma) { + pci_unmap_single(pdev, + buffer_info->dma, + buffer_info->length, + PCI_DMA_FROMDEVICE); + } + + buffer_info->dma = 0; + + if (buffer_info->skb) { + dev_kfree_skb(buffer_info->skb); + buffer_info->skb = NULL; + } + } + + size = sizeof(struct e1000_buffer) * rx_ring->count; + memset(rx_ring->buffer_info, 0, size); + + /* Zero out the descriptor ring */ + + memset(rx_ring->desc, 0, rx_ring->size); + + rx_ring->next_to_clean = 0; + rx_ring->next_to_use = 0; + + writel(0, hw->hw_addr + rx_ring->rdh); + writel(0, hw->hw_addr + rx_ring->rdt); +} + +/** + * e1000_clean_all_rx_rings - Free Rx Buffers for all queues + * @adapter: board private structure + **/ + +static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]); +} + +/* The 82542 2.0 (revision 2) needs to have the receive unit in reset + * and memory write and invalidate disabled for certain operations + */ +static void e1000_enter_82542_rst(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl; + + e1000_pci_clear_mwi(hw); + + rctl = er32(RCTL); + rctl |= E1000_RCTL_RST; + ew32(RCTL, rctl); + E1000_WRITE_FLUSH(); + mdelay(5); + + if (netif_running(netdev)) + e1000_clean_all_rx_rings(adapter); +} + +static void e1000_leave_82542_rst(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl; + + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_RST; + ew32(RCTL, rctl); + E1000_WRITE_FLUSH(); + mdelay(5); + + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + + if (netif_running(netdev)) { + /* No need to loop, because 82542 supports only 1 queue */ + struct e1000_rx_ring *ring = &adapter->rx_ring[0]; + e1000_configure_rx(adapter); + adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring)); + } +} + +/** + * e1000_set_mac - Change the Ethernet Address of the NIC + * @netdev: network interface device structure + * @p: pointer to an address structure + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_set_mac(struct net_device *netdev, void *p) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + /* 82542 2.0 needs to be in reset to write receive address registers */ + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_enter_82542_rst(adapter); + + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); + memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len); + + e1000_rar_set(hw, hw->mac_addr, 0); + + /* With 82571 controllers, LAA may be overwritten (with the default) + * due to controller reset from the other port. */ + if (hw->mac_type == e1000_82571) { + /* activate the work around */ + hw->laa_is_present = 1; + + /* Hold a copy of the LAA in RAR[14] This is done so that + * between the time RAR[0] gets clobbered and the time it + * gets fixed (in e1000_watchdog), the actual LAA is in one + * of the RARs and no incoming packets directed to this port + * are dropped. Eventaully the LAA will be in RAR[0] and + * RAR[14] */ + e1000_rar_set(hw, hw->mac_addr, + E1000_RAR_ENTRIES - 1); + } + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_leave_82542_rst(adapter); + + return 0; +} + +/** + * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set + * @netdev: network interface device structure + * + * The set_rx_mode entry point is called whenever the unicast or multicast + * address lists or the network interface flags are updated. This routine is + * responsible for configuring the hardware for proper unicast, multicast, + * promiscuous mode, and all-multi behavior. + **/ + +static void e1000_set_rx_mode(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct netdev_hw_addr *ha; + bool use_uc = false; + struct dev_addr_list *mc_ptr; + u32 rctl; + u32 hash_value; + int i, rar_entries = E1000_RAR_ENTRIES; + int mta_reg_count = (hw->mac_type == e1000_ich8lan) ? + E1000_NUM_MTA_REGISTERS_ICH8LAN : + E1000_NUM_MTA_REGISTERS; + u32 *mcarray = kcalloc(mta_reg_count, sizeof(u32), GFP_ATOMIC); + + if (!mcarray) { + DPRINTK(PROBE, ERR, "memory allocation failed\n"); + return; + } + + if (hw->mac_type == e1000_ich8lan) + rar_entries = E1000_RAR_ENTRIES_ICH8LAN; + + /* reserve RAR[14] for LAA over-write work-around */ + if (hw->mac_type == e1000_82571) + rar_entries--; + + /* Check for Promiscuous and All Multicast modes */ + + rctl = er32(RCTL); + + if (netdev->flags & IFF_PROMISC) { + rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); + rctl &= ~E1000_RCTL_VFE; + } else { + if (netdev->flags & IFF_ALLMULTI) { + rctl |= E1000_RCTL_MPE; + } else { + rctl &= ~E1000_RCTL_MPE; + } + if (adapter->hw.mac_type != e1000_ich8lan) + rctl |= E1000_RCTL_VFE; + } + + if (netdev->uc.count > rar_entries - 1) { + rctl |= E1000_RCTL_UPE; + } else if (!(netdev->flags & IFF_PROMISC)) { + rctl &= ~E1000_RCTL_UPE; + use_uc = true; + } + + ew32(RCTL, rctl); + + /* 82542 2.0 needs to be in reset to write receive address registers */ + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_enter_82542_rst(adapter); + + /* load the first 14 addresses into the exact filters 1-14. Unicast + * addresses take precedence to avoid disabling unicast filtering + * when possible. + * + * RAR 0 is used for the station MAC adddress + * if there are not 14 addresses, go ahead and clear the filters + * -- with 82571 controllers only 0-13 entries are filled here + */ + i = 1; + if (use_uc) + list_for_each_entry(ha, &netdev->uc.list, list) { + if (i == rar_entries) + break; + e1000_rar_set(hw, ha->addr, i++); + } + + WARN_ON(i == rar_entries); + + mc_ptr = netdev->mc_list; + + for (; i < rar_entries; i++) { + if (mc_ptr) { + e1000_rar_set(hw, mc_ptr->da_addr, i); + mc_ptr = mc_ptr->next; + } else { + E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0); + E1000_WRITE_FLUSH(); + } + } + + /* load any remaining addresses into the hash table */ + + for (; mc_ptr; mc_ptr = mc_ptr->next) { + u32 hash_reg, hash_bit, mta; + hash_value = e1000_hash_mc_addr(hw, mc_ptr->da_addr); + hash_reg = (hash_value >> 5) & 0x7F; + hash_bit = hash_value & 0x1F; + mta = (1 << hash_bit); + mcarray[hash_reg] |= mta; + } + + /* write the hash table completely, write from bottom to avoid + * both stupid write combining chipsets, and flushing each write */ + for (i = mta_reg_count - 1; i >= 0 ; i--) { + /* + * If we are on an 82544 has an errata where writing odd + * offsets overwrites the previous even offset, but writing + * backwards over the range solves the issue by always + * writing the odd offset first + */ + E1000_WRITE_REG_ARRAY(hw, MTA, i, mcarray[i]); + } + E1000_WRITE_FLUSH(); + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_leave_82542_rst(adapter); + + kfree(mcarray); +} + +/* Need to wait a few seconds after link up to get diagnostic information from + * the phy */ + +static void e1000_update_phy_info(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + e1000_phy_get_info(hw, &adapter->phy_info); +} + +/** + * e1000_82547_tx_fifo_stall - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ + +static void e1000_82547_tx_fifo_stall(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 tctl; + + if (atomic_read(&adapter->tx_fifo_stall)) { + if ((er32(TDT) == er32(TDH)) && + (er32(TDFT) == er32(TDFH)) && + (er32(TDFTS) == er32(TDFHS))) { + tctl = er32(TCTL); + ew32(TCTL, tctl & ~E1000_TCTL_EN); + ew32(TDFT, adapter->tx_head_addr); + ew32(TDFH, adapter->tx_head_addr); + ew32(TDFTS, adapter->tx_head_addr); + ew32(TDFHS, adapter->tx_head_addr); + ew32(TCTL, tctl); + E1000_WRITE_FLUSH(); + + adapter->tx_fifo_head = 0; + atomic_set(&adapter->tx_fifo_stall, 0); + netif_wake_queue(netdev); + } else { + mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1); + } + } +} + +/** + * e1000_watchdog - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ +static void e1000_watchdog(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct e1000_tx_ring *txdr = adapter->tx_ring; + u32 link, tctl; + s32 ret_val; + + ret_val = e1000_check_for_link(hw); + if ((ret_val == E1000_ERR_PHY) && + (hw->phy_type == e1000_phy_igp_3) && + (er32(CTRL) & E1000_PHY_CTRL_GBE_DISABLE)) { + /* See e1000_kumeran_lock_loss_workaround() */ + DPRINTK(LINK, INFO, + "Gigabit has been disabled, downgrading speed\n"); + } + + if (hw->mac_type == e1000_82573) { + e1000_enable_tx_pkt_filtering(hw); + if (adapter->mng_vlan_id != hw->mng_cookie.vlan_id) + e1000_update_mng_vlan(adapter); + } + + if ((hw->media_type == e1000_media_type_internal_serdes) && + !(er32(TXCW) & E1000_TXCW_ANE)) + link = !hw->serdes_link_down; + else + link = er32(STATUS) & E1000_STATUS_LU; + + if (link) { + if (!netif_carrier_ok(netdev)) { + u32 ctrl; + bool txb2b = true; + e1000_get_speed_and_duplex(hw, + &adapter->link_speed, + &adapter->link_duplex); + + ctrl = er32(CTRL); + printk(KERN_INFO "e1000: %s NIC Link is Up %d Mbps %s, " + "Flow Control: %s\n", + netdev->name, + adapter->link_speed, + adapter->link_duplex == FULL_DUPLEX ? + "Full Duplex" : "Half Duplex", + ((ctrl & E1000_CTRL_TFCE) && (ctrl & + E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl & + E1000_CTRL_RFCE) ? "RX" : ((ctrl & + E1000_CTRL_TFCE) ? "TX" : "None" ))); + + /* tweak tx_queue_len according to speed/duplex + * and adjust the timeout factor */ + netdev->tx_queue_len = adapter->tx_queue_len; + adapter->tx_timeout_factor = 1; + switch (adapter->link_speed) { + case SPEED_10: + txb2b = false; + netdev->tx_queue_len = 10; + adapter->tx_timeout_factor = 8; + break; + case SPEED_100: + txb2b = false; + netdev->tx_queue_len = 100; + /* maybe add some timeout factor ? */ + break; + } + + if ((hw->mac_type == e1000_82571 || + hw->mac_type == e1000_82572) && + !txb2b) { + u32 tarc0; + tarc0 = er32(TARC0); + tarc0 &= ~(1 << 21); + ew32(TARC0, tarc0); + } + + /* disable TSO for pcie and 10/100 speeds, to avoid + * some hardware issues */ + if (!adapter->tso_force && + hw->bus_type == e1000_bus_type_pci_express){ + switch (adapter->link_speed) { + case SPEED_10: + case SPEED_100: + DPRINTK(PROBE,INFO, + "10/100 speed: disabling TSO\n"); + netdev->features &= ~NETIF_F_TSO; + netdev->features &= ~NETIF_F_TSO6; + break; + case SPEED_1000: + netdev->features |= NETIF_F_TSO; + netdev->features |= NETIF_F_TSO6; + break; + default: + /* oops */ + break; + } + } + + /* enable transmits in the hardware, need to do this + * after setting TARC0 */ + tctl = er32(TCTL); + tctl |= E1000_TCTL_EN; + ew32(TCTL, tctl); + + netif_carrier_on(netdev); + mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); + adapter->smartspeed = 0; + } else { + /* make sure the receive unit is started */ + if (hw->rx_needs_kicking) { + u32 rctl = er32(RCTL); + ew32(RCTL, rctl | E1000_RCTL_EN); + } + } + } else { + if (netif_carrier_ok(netdev)) { + adapter->link_speed = 0; + adapter->link_duplex = 0; + printk(KERN_INFO "e1000: %s NIC Link is Down\n", + netdev->name); + netif_carrier_off(netdev); + mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); + + /* 80003ES2LAN workaround-- + * For packet buffer work-around on link down event; + * disable receives in the ISR and + * reset device here in the watchdog + */ + if (hw->mac_type == e1000_80003es2lan) + /* reset device */ + schedule_work(&adapter->reset_task); + } + + e1000_smartspeed(adapter); + } + + e1000_update_stats(adapter); + + hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old; + adapter->tpt_old = adapter->stats.tpt; + hw->collision_delta = adapter->stats.colc - adapter->colc_old; + adapter->colc_old = adapter->stats.colc; + + adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old; + adapter->gorcl_old = adapter->stats.gorcl; + adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old; + adapter->gotcl_old = adapter->stats.gotcl; + + e1000_update_adaptive(hw); + + if (!netif_carrier_ok(netdev)) { + if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) { + /* We've lost link, so the controller stops DMA, + * but we've got queued Tx work that's never going + * to get done, so reset controller to flush Tx. + * (Do the reset outside of interrupt context). */ + adapter->tx_timeout_count++; + schedule_work(&adapter->reset_task); + /* return immediately since reset is imminent */ + return; + } + } + + /* Cause software interrupt to ensure rx ring is cleaned */ + ew32(ICS, E1000_ICS_RXDMT0); + + /* Force detection of hung controller every watchdog period */ + adapter->detect_tx_hung = true; + + /* With 82571 controllers, LAA may be overwritten due to controller + * reset from the other port. Set the appropriate LAA in RAR[0] */ + if (hw->mac_type == e1000_82571 && hw->laa_is_present) + e1000_rar_set(hw, hw->mac_addr, 0); + + /* Reset the timer */ + mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 2 * HZ)); +} + +enum latency_range { + lowest_latency = 0, + low_latency = 1, + bulk_latency = 2, + latency_invalid = 255 +}; + +/** + * e1000_update_itr - update the dynamic ITR value based on statistics + * Stores a new ITR value based on packets and byte + * counts during the last interrupt. The advantage of per interrupt + * computation is faster updates and more accurate ITR for the current + * traffic pattern. Constants in this function were computed + * based on theoretical maximum wire speed and thresholds were set based + * on testing data as well as attempting to minimize response time + * while increasing bulk throughput. + * this functionality is controlled by the InterruptThrottleRate module + * parameter (see e1000_param.c) + * @adapter: pointer to adapter + * @itr_setting: current adapter->itr + * @packets: the number of packets during this measurement interval + * @bytes: the number of bytes during this measurement interval + **/ +static unsigned int e1000_update_itr(struct e1000_adapter *adapter, + u16 itr_setting, int packets, int bytes) +{ + unsigned int retval = itr_setting; + struct e1000_hw *hw = &adapter->hw; + + if (unlikely(hw->mac_type < e1000_82540)) + goto update_itr_done; + + if (packets == 0) + goto update_itr_done; + + switch (itr_setting) { + case lowest_latency: + /* jumbo frames get bulk treatment*/ + if (bytes/packets > 8000) + retval = bulk_latency; + else if ((packets < 5) && (bytes > 512)) + retval = low_latency; + break; + case low_latency: /* 50 usec aka 20000 ints/s */ + if (bytes > 10000) { + /* jumbo frames need bulk latency setting */ + if (bytes/packets > 8000) + retval = bulk_latency; + else if ((packets < 10) || ((bytes/packets) > 1200)) + retval = bulk_latency; + else if ((packets > 35)) + retval = lowest_latency; + } else if (bytes/packets > 2000) + retval = bulk_latency; + else if (packets <= 2 && bytes < 512) + retval = lowest_latency; + break; + case bulk_latency: /* 250 usec aka 4000 ints/s */ + if (bytes > 25000) { + if (packets > 35) + retval = low_latency; + } else if (bytes < 6000) { + retval = low_latency; + } + break; + } + +update_itr_done: + return retval; +} + +static void e1000_set_itr(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 current_itr; + u32 new_itr = adapter->itr; + + if (unlikely(hw->mac_type < e1000_82540)) + return; + + /* for non-gigabit speeds, just fix the interrupt rate at 4000 */ + if (unlikely(adapter->link_speed != SPEED_1000)) { + current_itr = 0; + new_itr = 4000; + goto set_itr_now; + } + + adapter->tx_itr = e1000_update_itr(adapter, + adapter->tx_itr, + adapter->total_tx_packets, + adapter->total_tx_bytes); + /* conservative mode (itr 3) eliminates the lowest_latency setting */ + if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency) + adapter->tx_itr = low_latency; + + adapter->rx_itr = e1000_update_itr(adapter, + adapter->rx_itr, + adapter->total_rx_packets, + adapter->total_rx_bytes); + /* conservative mode (itr 3) eliminates the lowest_latency setting */ + if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency) + adapter->rx_itr = low_latency; + + current_itr = max(adapter->rx_itr, adapter->tx_itr); + + switch (current_itr) { + /* counts and packets in update_itr are dependent on these numbers */ + case lowest_latency: + new_itr = 70000; + break; + case low_latency: + new_itr = 20000; /* aka hwitr = ~200 */ + break; + case bulk_latency: + new_itr = 4000; + break; + default: + break; + } + +set_itr_now: + if (new_itr != adapter->itr) { + /* this attempts to bias the interrupt rate towards Bulk + * by adding intermediate steps when interrupt rate is + * increasing */ + new_itr = new_itr > adapter->itr ? + min(adapter->itr + (new_itr >> 2), new_itr) : + new_itr; + adapter->itr = new_itr; + ew32(ITR, 1000000000 / (new_itr * 256)); + } + + return; +} + +#define E1000_TX_FLAGS_CSUM 0x00000001 +#define E1000_TX_FLAGS_VLAN 0x00000002 +#define E1000_TX_FLAGS_TSO 0x00000004 +#define E1000_TX_FLAGS_IPV4 0x00000008 +#define E1000_TX_FLAGS_VLAN_MASK 0xffff0000 +#define E1000_TX_FLAGS_VLAN_SHIFT 16 + +static int e1000_tso(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, struct sk_buff *skb) +{ + struct e1000_context_desc *context_desc; + struct e1000_buffer *buffer_info; + unsigned int i; + u32 cmd_length = 0; + u16 ipcse = 0, tucse, mss; + u8 ipcss, ipcso, tucss, tucso, hdr_len; + int err; + + if (skb_is_gso(skb)) { + if (skb_header_cloned(skb)) { + err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + if (err) + return err; + } + + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + mss = skb_shinfo(skb)->gso_size; + if (skb->protocol == htons(ETH_P_IP)) { + struct iphdr *iph = ip_hdr(skb); + iph->tot_len = 0; + iph->check = 0; + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, + 0); + cmd_length = E1000_TXD_CMD_IP; + ipcse = skb_transport_offset(skb) - 1; + } else if (skb->protocol == htons(ETH_P_IPV6)) { + ipv6_hdr(skb)->payload_len = 0; + tcp_hdr(skb)->check = + ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, + 0, IPPROTO_TCP, 0); + ipcse = 0; + } + ipcss = skb_network_offset(skb); + ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data; + tucss = skb_transport_offset(skb); + tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data; + tucse = 0; + + cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE | + E1000_TXD_CMD_TCP | (skb->len - (hdr_len))); + + i = tx_ring->next_to_use; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; + + context_desc->lower_setup.ip_fields.ipcss = ipcss; + context_desc->lower_setup.ip_fields.ipcso = ipcso; + context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse); + context_desc->upper_setup.tcp_fields.tucss = tucss; + context_desc->upper_setup.tcp_fields.tucso = tucso; + context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse); + context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss); + context_desc->tcp_seg_setup.fields.hdr_len = hdr_len; + context_desc->cmd_and_length = cpu_to_le32(cmd_length); + + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + if (++i == tx_ring->count) i = 0; + tx_ring->next_to_use = i; + + return true; + } + return false; +} + +static bool e1000_tx_csum(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, struct sk_buff *skb) +{ + struct e1000_context_desc *context_desc; + struct e1000_buffer *buffer_info; + unsigned int i; + u8 css; + u32 cmd_len = E1000_TXD_CMD_DEXT; + + if (skb->ip_summed != CHECKSUM_PARTIAL) + return false; + + switch (skb->protocol) { + case cpu_to_be16(ETH_P_IP): + if (ip_hdr(skb)->protocol == IPPROTO_TCP) + cmd_len |= E1000_TXD_CMD_TCP; + break; + case cpu_to_be16(ETH_P_IPV6): + /* XXX not handling all IPV6 headers */ + if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) + cmd_len |= E1000_TXD_CMD_TCP; + break; + default: + if (unlikely(net_ratelimit())) + DPRINTK(DRV, WARNING, + "checksum_partial proto=%x!\n", skb->protocol); + break; + } + + css = skb_transport_offset(skb); + + i = tx_ring->next_to_use; + buffer_info = &tx_ring->buffer_info[i]; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + + context_desc->lower_setup.ip_config = 0; + context_desc->upper_setup.tcp_fields.tucss = css; + context_desc->upper_setup.tcp_fields.tucso = + css + skb->csum_offset; + context_desc->upper_setup.tcp_fields.tucse = 0; + context_desc->tcp_seg_setup.data = 0; + context_desc->cmd_and_length = cpu_to_le32(cmd_len); + + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + if (unlikely(++i == tx_ring->count)) i = 0; + tx_ring->next_to_use = i; + + return true; +} + +#define E1000_MAX_TXD_PWR 12 +#define E1000_MAX_DATA_PER_TXD (1<hw; + struct e1000_buffer *buffer_info; + unsigned int len = skb_headlen(skb); + unsigned int offset, size, count = 0, i; + unsigned int f; + dma_addr_t *map; + + i = tx_ring->next_to_use; + + if (skb_dma_map(&adapter->pdev->dev, skb, DMA_TO_DEVICE)) { + dev_err(&adapter->pdev->dev, "TX DMA map failed\n"); + return 0; + } + + map = skb_shinfo(skb)->dma_maps; + offset = 0; + + while (len) { + buffer_info = &tx_ring->buffer_info[i]; + size = min(len, max_per_txd); + /* Workaround for Controller erratum -- + * descriptor for non-tso packet in a linear SKB that follows a + * tso gets written back prematurely before the data is fully + * DMA'd to the controller */ + if (!skb->data_len && tx_ring->last_tx_tso && + !skb_is_gso(skb)) { + tx_ring->last_tx_tso = 0; + size -= 4; + } + + /* Workaround for premature desc write-backs + * in TSO mode. Append 4-byte sentinel desc */ + if (unlikely(mss && !nr_frags && size == len && size > 8)) + size -= 4; + /* work-around for errata 10 and it applies + * to all controllers in PCI-X mode + * The fix is to make sure that the first descriptor of a + * packet is smaller than 2048 - 16 - 16 (or 2016) bytes + */ + if (unlikely((hw->bus_type == e1000_bus_type_pcix) && + (size > 2015) && count == 0)) + size = 2015; + + /* Workaround for potential 82544 hang in PCI-X. Avoid + * terminating buffers within evenly-aligned dwords. */ + if (unlikely(adapter->pcix_82544 && + !((unsigned long)(skb->data + offset + size - 1) & 4) && + size > 4)) + size -= 4; + + buffer_info->length = size; + buffer_info->dma = skb_shinfo(skb)->dma_head + offset; + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + len -= size; + offset += size; + count++; + if (len) { + i++; + if (unlikely(i == tx_ring->count)) + i = 0; + } + } + + for (f = 0; f < nr_frags; f++) { + struct skb_frag_struct *frag; + + frag = &skb_shinfo(skb)->frags[f]; + len = frag->size; + offset = 0; + + while (len) { + i++; + if (unlikely(i == tx_ring->count)) + i = 0; + + buffer_info = &tx_ring->buffer_info[i]; + size = min(len, max_per_txd); + /* Workaround for premature desc write-backs + * in TSO mode. Append 4-byte sentinel desc */ + if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8)) + size -= 4; + /* Workaround for potential 82544 hang in PCI-X. + * Avoid terminating buffers within evenly-aligned + * dwords. */ + if (unlikely(adapter->pcix_82544 && + !((unsigned long)(frag->page+offset+size-1) & 4) && + size > 4)) + size -= 4; + + buffer_info->length = size; + buffer_info->dma = map[f] + offset; + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + len -= size; + offset += size; + count++; + } + } + + tx_ring->buffer_info[i].skb = skb; + tx_ring->buffer_info[first].next_to_watch = i; + + return count; +} + +static void e1000_tx_queue(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, int tx_flags, + int count) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_desc *tx_desc = NULL; + struct e1000_buffer *buffer_info; + u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS; + unsigned int i; + + if (likely(tx_flags & E1000_TX_FLAGS_TSO)) { + txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D | + E1000_TXD_CMD_TSE; + txd_upper |= E1000_TXD_POPTS_TXSM << 8; + + if (likely(tx_flags & E1000_TX_FLAGS_IPV4)) + txd_upper |= E1000_TXD_POPTS_IXSM << 8; + } + + if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) { + txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D; + txd_upper |= E1000_TXD_POPTS_TXSM << 8; + } + + if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) { + txd_lower |= E1000_TXD_CMD_VLE; + txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK); + } + + i = tx_ring->next_to_use; + + while (count--) { + buffer_info = &tx_ring->buffer_info[i]; + tx_desc = E1000_TX_DESC(*tx_ring, i); + tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + tx_desc->lower.data = + cpu_to_le32(txd_lower | buffer_info->length); + tx_desc->upper.data = cpu_to_le32(txd_upper); + if (unlikely(++i == tx_ring->count)) i = 0; + } + + tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + + tx_ring->next_to_use = i; + writel(i, hw->hw_addr + tx_ring->tdt); + /* we need this if more than one processor can write to our tail + * at a time, it syncronizes IO on IA64/Altix systems */ + mmiowb(); +} + +/** + * 82547 workaround to avoid controller hang in half-duplex environment. + * The workaround is to avoid queuing a large packet that would span + * the internal Tx FIFO ring boundary by notifying the stack to resend + * the packet at a later time. This gives the Tx FIFO an opportunity to + * flush all packets. When that occurs, we reset the Tx FIFO pointers + * to the beginning of the Tx FIFO. + **/ + +#define E1000_FIFO_HDR 0x10 +#define E1000_82547_PAD_LEN 0x3E0 + +static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, + struct sk_buff *skb) +{ + u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head; + u32 skb_fifo_len = skb->len + E1000_FIFO_HDR; + + skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR); + + if (adapter->link_duplex != HALF_DUPLEX) + goto no_fifo_stall_required; + + if (atomic_read(&adapter->tx_fifo_stall)) + return 1; + + if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) { + atomic_set(&adapter->tx_fifo_stall, 1); + return 1; + } + +no_fifo_stall_required: + adapter->tx_fifo_head += skb_fifo_len; + if (adapter->tx_fifo_head >= adapter->tx_fifo_size) + adapter->tx_fifo_head -= adapter->tx_fifo_size; + return 0; +} + +#define MINIMUM_DHCP_PACKET_SIZE 282 +static int e1000_transfer_dhcp_info(struct e1000_adapter *adapter, + struct sk_buff *skb) +{ + struct e1000_hw *hw = &adapter->hw; + u16 length, offset; + if (vlan_tx_tag_present(skb)) { + if (!((vlan_tx_tag_get(skb) == hw->mng_cookie.vlan_id) && + ( hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) ) + return 0; + } + if (skb->len > MINIMUM_DHCP_PACKET_SIZE) { + struct ethhdr *eth = (struct ethhdr *)skb->data; + if ((htons(ETH_P_IP) == eth->h_proto)) { + const struct iphdr *ip = + (struct iphdr *)((u8 *)skb->data+14); + if (IPPROTO_UDP == ip->protocol) { + struct udphdr *udp = + (struct udphdr *)((u8 *)ip + + (ip->ihl << 2)); + if (ntohs(udp->dest) == 67) { + offset = (u8 *)udp + 8 - skb->data; + length = skb->len - offset; + + return e1000_mng_write_dhcp_info(hw, + (u8 *)udp + 8, + length); + } + } + } + } + return 0; +} + +static int __e1000_maybe_stop_tx(struct net_device *netdev, int size) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + + netif_stop_queue(netdev); + /* Herbert's original patch had: + * smp_mb__after_netif_stop_queue(); + * but since that doesn't exist yet, just open code it. */ + smp_mb(); + + /* We need to check again in a case another CPU has just + * made room available. */ + if (likely(E1000_DESC_UNUSED(tx_ring) < size)) + return -EBUSY; + + /* A reprieve! */ + netif_start_queue(netdev); + ++adapter->restart_queue; + return 0; +} + +static int e1000_maybe_stop_tx(struct net_device *netdev, + struct e1000_tx_ring *tx_ring, int size) +{ + if (likely(E1000_DESC_UNUSED(tx_ring) >= size)) + return 0; + return __e1000_maybe_stop_tx(netdev, size); +} + +#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 ) +static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *tx_ring; + unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD; + unsigned int max_txd_pwr = E1000_MAX_TXD_PWR; + unsigned int tx_flags = 0; + unsigned int len = skb->len - skb->data_len; + unsigned int nr_frags; + unsigned int mss; + int count = 0; + int tso; + unsigned int f; + + /* This goes back to the question of how to logically map a tx queue + * to a flow. Right now, performance is impacted slightly negatively + * if using multiple tx queues. If the stack breaks away from a + * single qdisc implementation, we can look at this again. */ + tx_ring = adapter->tx_ring; + + if (unlikely(skb->len <= 0)) { + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + /* 82571 and newer doesn't need the workaround that limited descriptor + * length to 4kB */ + if (hw->mac_type >= e1000_82571) + max_per_txd = 8192; + + mss = skb_shinfo(skb)->gso_size; + /* The controller does a simple calculation to + * make sure there is enough room in the FIFO before + * initiating the DMA for each buffer. The calc is: + * 4 = ceil(buffer len/mss). To make sure we don't + * overrun the FIFO, adjust the max buffer len if mss + * drops. */ + if (mss) { + u8 hdr_len; + max_per_txd = min(mss << 2, max_per_txd); + max_txd_pwr = fls(max_per_txd) - 1; + + /* TSO Workaround for 82571/2/3 Controllers -- if skb->data + * points to just header, pull a few bytes of payload from + * frags into skb->data */ + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + if (skb->data_len && hdr_len == len) { + switch (hw->mac_type) { + unsigned int pull_size; + case e1000_82544: + /* Make sure we have room to chop off 4 bytes, + * and that the end alignment will work out to + * this hardware's requirements + * NOTE: this is a TSO only workaround + * if end byte alignment not correct move us + * into the next dword */ + if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4) + break; + /* fall through */ + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_ich8lan: + pull_size = min((unsigned int)4, skb->data_len); + if (!__pskb_pull_tail(skb, pull_size)) { + DPRINTK(DRV, ERR, + "__pskb_pull_tail failed.\n"); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + len = skb->len - skb->data_len; + break; + default: + /* do nothing */ + break; + } + } + } + + /* reserve a descriptor for the offload context */ + if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL)) + count++; + count++; + + /* Controller Erratum workaround */ + if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb)) + count++; + + count += TXD_USE_COUNT(len, max_txd_pwr); + + if (adapter->pcix_82544) + count++; + + /* work-around for errata 10 and it applies to all controllers + * in PCI-X mode, so add one more descriptor to the count + */ + if (unlikely((hw->bus_type == e1000_bus_type_pcix) && + (len > 2015))) + count++; + + nr_frags = skb_shinfo(skb)->nr_frags; + for (f = 0; f < nr_frags; f++) + count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size, + max_txd_pwr); + if (adapter->pcix_82544) + count += nr_frags; + + + if (hw->tx_pkt_filtering && + (hw->mac_type == e1000_82573)) + e1000_transfer_dhcp_info(adapter, skb); + + /* need: count + 2 desc gap to keep tail from touching + * head, otherwise try next time */ + if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2))) + return NETDEV_TX_BUSY; + + if (unlikely(hw->mac_type == e1000_82547)) { + if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) { + netif_stop_queue(netdev); + mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1); + return NETDEV_TX_BUSY; + } + } + + if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) { + tx_flags |= E1000_TX_FLAGS_VLAN; + tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT); + } + + first = tx_ring->next_to_use; + + tso = e1000_tso(adapter, tx_ring, skb); + if (tso < 0) { + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + if (likely(tso)) { + tx_ring->last_tx_tso = 1; + tx_flags |= E1000_TX_FLAGS_TSO; + } else if (likely(e1000_tx_csum(adapter, tx_ring, skb))) + tx_flags |= E1000_TX_FLAGS_CSUM; + + /* Old method was to assume IPv4 packet by default if TSO was enabled. + * 82571 hardware supports TSO capabilities for IPv6 as well... + * no longer assume, we must. */ + if (likely(skb->protocol == htons(ETH_P_IP))) + tx_flags |= E1000_TX_FLAGS_IPV4; + + count = e1000_tx_map(adapter, tx_ring, skb, first, max_per_txd, + nr_frags, mss); + + if (count) { + e1000_tx_queue(adapter, tx_ring, tx_flags, count); + /* Make sure there is space in the ring for the next send. */ + e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2); + + } else { + dev_kfree_skb_any(skb); + tx_ring->buffer_info[first].time_stamp = 0; + tx_ring->next_to_use = first; + } + + return NETDEV_TX_OK; +} + +/** + * e1000_tx_timeout - Respond to a Tx Hang + * @netdev: network interface device structure + **/ + +static void e1000_tx_timeout(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + /* Do the reset outside of interrupt context */ + adapter->tx_timeout_count++; + schedule_work(&adapter->reset_task); +} + +static void e1000_reset_task(struct work_struct *work) +{ + struct e1000_adapter *adapter = + container_of(work, struct e1000_adapter, reset_task); + + e1000_reinit_locked(adapter); +} + +/** + * e1000_get_stats - Get System Network Statistics + * @netdev: network interface device structure + * + * Returns the address of the device statistics structure. + * The statistics are actually updated from the timer callback. + **/ + +static struct net_device_stats *e1000_get_stats(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + /* only return the current stats */ + return &adapter->net_stats; +} + +/** + * e1000_change_mtu - Change the Maximum Transfer Unit + * @netdev: network interface device structure + * @new_mtu: new value for maximum frame size + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE; + u16 eeprom_data = 0; + + if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) || + (max_frame > MAX_JUMBO_FRAME_SIZE)) { + DPRINTK(PROBE, ERR, "Invalid MTU setting\n"); + return -EINVAL; + } + + /* Adapter-specific max frame size limits. */ + switch (hw->mac_type) { + case e1000_undefined ... e1000_82542_rev2_1: + case e1000_ich8lan: + if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) { + DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n"); + return -EINVAL; + } + break; + case e1000_82573: + /* Jumbo Frames not supported if: + * - this is not an 82573L device + * - ASPM is enabled in any way (0x1A bits 3:2) */ + e1000_read_eeprom(hw, EEPROM_INIT_3GIO_3, 1, + &eeprom_data); + if ((hw->device_id != E1000_DEV_ID_82573L) || + (eeprom_data & EEPROM_WORD1A_ASPM_MASK)) { + if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) { + DPRINTK(PROBE, ERR, + "Jumbo Frames not supported.\n"); + return -EINVAL; + } + break; + } + /* ERT will be enabled later to enable wire speed receives */ + + /* fall through to get support */ + case e1000_82571: + case e1000_82572: + case e1000_80003es2lan: +#define MAX_STD_JUMBO_FRAME_SIZE 9234 + if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) { + DPRINTK(PROBE, ERR, "MTU > 9216 not supported.\n"); + return -EINVAL; + } + break; + default: + /* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */ + break; + } + + /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN + * means we reserve 2 more, this pushes us to allocate from the next + * larger slab size + * i.e. RXBUFFER_2048 --> size-4096 slab */ + + if (max_frame <= E1000_RXBUFFER_256) + adapter->rx_buffer_len = E1000_RXBUFFER_256; + else if (max_frame <= E1000_RXBUFFER_512) + adapter->rx_buffer_len = E1000_RXBUFFER_512; + else if (max_frame <= E1000_RXBUFFER_1024) + adapter->rx_buffer_len = E1000_RXBUFFER_1024; + else if (max_frame <= E1000_RXBUFFER_2048) + adapter->rx_buffer_len = E1000_RXBUFFER_2048; + else if (max_frame <= E1000_RXBUFFER_4096) + adapter->rx_buffer_len = E1000_RXBUFFER_4096; + else if (max_frame <= E1000_RXBUFFER_8192) + adapter->rx_buffer_len = E1000_RXBUFFER_8192; + else if (max_frame <= E1000_RXBUFFER_16384) + adapter->rx_buffer_len = E1000_RXBUFFER_16384; + + /* adjust allocation if LPE protects us, and we aren't using SBP */ + if (!hw->tbi_compatibility_on && + ((max_frame == MAXIMUM_ETHERNET_FRAME_SIZE) || + (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE))) + adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; + + netdev->mtu = new_mtu; + hw->max_frame_size = max_frame; + + if (netif_running(netdev)) + e1000_reinit_locked(adapter); + + return 0; +} + +/** + * e1000_update_stats - Update the board statistics counters + * @adapter: board private structure + **/ + +void e1000_update_stats(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct pci_dev *pdev = adapter->pdev; + unsigned long flags; + u16 phy_tmp; + +#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF + + /* + * Prevent stats update while adapter is being reset, or if the pci + * connection is down. + */ + if (adapter->link_speed == 0) + return; + if (pci_channel_offline(pdev)) + return; + + spin_lock_irqsave(&adapter->stats_lock, flags); + + /* these counters are modified from e1000_tbi_adjust_stats, + * called from the interrupt context, so they must only + * be written while holding adapter->stats_lock + */ + + adapter->stats.crcerrs += er32(CRCERRS); + adapter->stats.gprc += er32(GPRC); + adapter->stats.gorcl += er32(GORCL); + adapter->stats.gorch += er32(GORCH); + adapter->stats.bprc += er32(BPRC); + adapter->stats.mprc += er32(MPRC); + adapter->stats.roc += er32(ROC); + + if (hw->mac_type != e1000_ich8lan) { + adapter->stats.prc64 += er32(PRC64); + adapter->stats.prc127 += er32(PRC127); + adapter->stats.prc255 += er32(PRC255); + adapter->stats.prc511 += er32(PRC511); + adapter->stats.prc1023 += er32(PRC1023); + adapter->stats.prc1522 += er32(PRC1522); + } + + adapter->stats.symerrs += er32(SYMERRS); + adapter->stats.mpc += er32(MPC); + adapter->stats.scc += er32(SCC); + adapter->stats.ecol += er32(ECOL); + adapter->stats.mcc += er32(MCC); + adapter->stats.latecol += er32(LATECOL); + adapter->stats.dc += er32(DC); + adapter->stats.sec += er32(SEC); + adapter->stats.rlec += er32(RLEC); + adapter->stats.xonrxc += er32(XONRXC); + adapter->stats.xontxc += er32(XONTXC); + adapter->stats.xoffrxc += er32(XOFFRXC); + adapter->stats.xofftxc += er32(XOFFTXC); + adapter->stats.fcruc += er32(FCRUC); + adapter->stats.gptc += er32(GPTC); + adapter->stats.gotcl += er32(GOTCL); + adapter->stats.gotch += er32(GOTCH); + adapter->stats.rnbc += er32(RNBC); + adapter->stats.ruc += er32(RUC); + adapter->stats.rfc += er32(RFC); + adapter->stats.rjc += er32(RJC); + adapter->stats.torl += er32(TORL); + adapter->stats.torh += er32(TORH); + adapter->stats.totl += er32(TOTL); + adapter->stats.toth += er32(TOTH); + adapter->stats.tpr += er32(TPR); + + if (hw->mac_type != e1000_ich8lan) { + adapter->stats.ptc64 += er32(PTC64); + adapter->stats.ptc127 += er32(PTC127); + adapter->stats.ptc255 += er32(PTC255); + adapter->stats.ptc511 += er32(PTC511); + adapter->stats.ptc1023 += er32(PTC1023); + adapter->stats.ptc1522 += er32(PTC1522); + } + + adapter->stats.mptc += er32(MPTC); + adapter->stats.bptc += er32(BPTC); + + /* used for adaptive IFS */ + + hw->tx_packet_delta = er32(TPT); + adapter->stats.tpt += hw->tx_packet_delta; + hw->collision_delta = er32(COLC); + adapter->stats.colc += hw->collision_delta; + + if (hw->mac_type >= e1000_82543) { + adapter->stats.algnerrc += er32(ALGNERRC); + adapter->stats.rxerrc += er32(RXERRC); + adapter->stats.tncrs += er32(TNCRS); + adapter->stats.cexterr += er32(CEXTERR); + adapter->stats.tsctc += er32(TSCTC); + adapter->stats.tsctfc += er32(TSCTFC); + } + if (hw->mac_type > e1000_82547_rev_2) { + adapter->stats.iac += er32(IAC); + adapter->stats.icrxoc += er32(ICRXOC); + + if (hw->mac_type != e1000_ich8lan) { + adapter->stats.icrxptc += er32(ICRXPTC); + adapter->stats.icrxatc += er32(ICRXATC); + adapter->stats.ictxptc += er32(ICTXPTC); + adapter->stats.ictxatc += er32(ICTXATC); + adapter->stats.ictxqec += er32(ICTXQEC); + adapter->stats.ictxqmtc += er32(ICTXQMTC); + adapter->stats.icrxdmtc += er32(ICRXDMTC); + } + } + + /* Fill out the OS statistics structure */ + adapter->net_stats.multicast = adapter->stats.mprc; + adapter->net_stats.collisions = adapter->stats.colc; + + /* Rx Errors */ + + /* RLEC on some newer hardware can be incorrect so build + * our own version based on RUC and ROC */ + adapter->net_stats.rx_errors = adapter->stats.rxerrc + + adapter->stats.crcerrs + adapter->stats.algnerrc + + adapter->stats.ruc + adapter->stats.roc + + adapter->stats.cexterr; + adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc; + adapter->net_stats.rx_length_errors = adapter->stats.rlerrc; + adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs; + adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc; + adapter->net_stats.rx_missed_errors = adapter->stats.mpc; + + /* Tx Errors */ + adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol; + adapter->net_stats.tx_errors = adapter->stats.txerrc; + adapter->net_stats.tx_aborted_errors = adapter->stats.ecol; + adapter->net_stats.tx_window_errors = adapter->stats.latecol; + adapter->net_stats.tx_carrier_errors = adapter->stats.tncrs; + if (hw->bad_tx_carr_stats_fd && + adapter->link_duplex == FULL_DUPLEX) { + adapter->net_stats.tx_carrier_errors = 0; + adapter->stats.tncrs = 0; + } + + /* Tx Dropped needs to be maintained elsewhere */ + + /* Phy Stats */ + if (hw->media_type == e1000_media_type_copper) { + if ((adapter->link_speed == SPEED_1000) && + (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) { + phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK; + adapter->phy_stats.idle_errors += phy_tmp; + } + + if ((hw->mac_type <= e1000_82546) && + (hw->phy_type == e1000_phy_m88) && + !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp)) + adapter->phy_stats.receive_errors += phy_tmp; + } + + /* Management Stats */ + if (hw->has_smbus) { + adapter->stats.mgptc += er32(MGTPTC); + adapter->stats.mgprc += er32(MGTPRC); + adapter->stats.mgpdc += er32(MGTPDC); + } + + spin_unlock_irqrestore(&adapter->stats_lock, flags); +} + +/** + * e1000_intr_msi - Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + **/ + +static irqreturn_t e1000_intr_msi(int irq, void *data) +{ + struct net_device *netdev = data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 icr = er32(ICR); + + /* in NAPI mode read ICR disables interrupts using IAM */ + + if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { + hw->get_link_status = 1; + /* 80003ES2LAN workaround-- For packet buffer work-around on + * link down event; disable receives here in the ISR and reset + * adapter in watchdog */ + if (netif_carrier_ok(netdev) && + (hw->mac_type == e1000_80003es2lan)) { + /* disable receives */ + u32 rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + } + /* guard against interrupt when we're going down */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, jiffies + 1); + } + + if (likely(napi_schedule_prep(&adapter->napi))) { + adapter->total_tx_bytes = 0; + adapter->total_tx_packets = 0; + adapter->total_rx_bytes = 0; + adapter->total_rx_packets = 0; + __napi_schedule(&adapter->napi); + } else + e1000_irq_enable(adapter); + + return IRQ_HANDLED; +} + +/** + * e1000_intr - Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + **/ + +static irqreturn_t e1000_intr(int irq, void *data) +{ + struct net_device *netdev = data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 rctl, icr = er32(ICR); + + if (unlikely((!icr) || test_bit(__E1000_DOWN, &adapter->flags))) + return IRQ_NONE; /* Not our interrupt */ + + /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is + * not set, then the adapter didn't send an interrupt */ + if (unlikely(hw->mac_type >= e1000_82571 && + !(icr & E1000_ICR_INT_ASSERTED))) + return IRQ_NONE; + + /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No + * need for the IMC write */ + + if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) { + hw->get_link_status = 1; + /* 80003ES2LAN workaround-- + * For packet buffer work-around on link down event; + * disable receives here in the ISR and + * reset adapter in watchdog + */ + if (netif_carrier_ok(netdev) && + (hw->mac_type == e1000_80003es2lan)) { + /* disable receives */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + } + /* guard against interrupt when we're going down */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, jiffies + 1); + } + + if (unlikely(hw->mac_type < e1000_82571)) { + /* disable interrupts, without the synchronize_irq bit */ + ew32(IMC, ~0); + E1000_WRITE_FLUSH(); + } + if (likely(napi_schedule_prep(&adapter->napi))) { + adapter->total_tx_bytes = 0; + adapter->total_tx_packets = 0; + adapter->total_rx_bytes = 0; + adapter->total_rx_packets = 0; + __napi_schedule(&adapter->napi); + } else { + /* this really should not happen! if it does it is basically a + * bug, but not a hard error, so enable ints and continue */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + } + + return IRQ_HANDLED; +} + +/** + * e1000_clean - NAPI Rx polling callback + * @adapter: board private structure + **/ +static int e1000_clean(struct napi_struct *napi, int budget) +{ + struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi); + struct net_device *poll_dev = adapter->netdev; + int tx_cleaned = 0, work_done = 0; + + adapter = netdev_priv(poll_dev); + + tx_cleaned = e1000_clean_tx_irq(adapter, &adapter->tx_ring[0]); + + adapter->clean_rx(adapter, &adapter->rx_ring[0], + &work_done, budget); + + if (!tx_cleaned) + work_done = budget; + + /* If budget not fully consumed, exit the polling mode */ + if (work_done < budget) { + if (likely(adapter->itr_setting & 3)) + e1000_set_itr(adapter); + napi_complete(napi); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + } + + return work_done; +} + +/** + * e1000_clean_tx_irq - Reclaim resources after transmit completes + * @adapter: board private structure + **/ +static bool e1000_clean_tx_irq(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct e1000_tx_desc *tx_desc, *eop_desc; + struct e1000_buffer *buffer_info; + unsigned int i, eop; + unsigned int count = 0; + unsigned int total_tx_bytes=0, total_tx_packets=0; + + i = tx_ring->next_to_clean; + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC(*tx_ring, eop); + + while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) && + (count < tx_ring->count)) { + bool cleaned = false; + for ( ; !cleaned; count++) { + tx_desc = E1000_TX_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; + cleaned = (i == eop); + + if (cleaned) { + struct sk_buff *skb = buffer_info->skb; + unsigned int segs, bytecount; + segs = skb_shinfo(skb)->gso_segs ?: 1; + /* multiply data chunks by size of headers */ + bytecount = ((segs - 1) * skb_headlen(skb)) + + skb->len; + total_tx_packets += segs; + total_tx_bytes += bytecount; + } + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + tx_desc->upper.data = 0; + + if (unlikely(++i == tx_ring->count)) i = 0; + } + + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC(*tx_ring, eop); + } + + tx_ring->next_to_clean = i; + +#define TX_WAKE_THRESHOLD 32 + if (unlikely(count && netif_carrier_ok(netdev) && + E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) { + /* Make sure that anybody stopping the queue after this + * sees the new next_to_clean. + */ + smp_mb(); + if (netif_queue_stopped(netdev)) { + netif_wake_queue(netdev); + ++adapter->restart_queue; + } + } + + if (adapter->detect_tx_hung) { + /* Detect a transmit hang in hardware, this serializes the + * check with the clearing of time_stamp and movement of i */ + adapter->detect_tx_hung = false; + if (tx_ring->buffer_info[i].time_stamp && + time_after(jiffies, tx_ring->buffer_info[i].time_stamp + + (adapter->tx_timeout_factor * HZ)) + && !(er32(STATUS) & E1000_STATUS_TXOFF)) { + + /* detected Tx unit hang */ + DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n" + " Tx Queue <%lu>\n" + " TDH <%x>\n" + " TDT <%x>\n" + " next_to_use <%x>\n" + " next_to_clean <%x>\n" + "buffer_info[next_to_clean]\n" + " time_stamp <%lx>\n" + " next_to_watch <%x>\n" + " jiffies <%lx>\n" + " next_to_watch.status <%x>\n", + (unsigned long)((tx_ring - adapter->tx_ring) / + sizeof(struct e1000_tx_ring)), + readl(hw->hw_addr + tx_ring->tdh), + readl(hw->hw_addr + tx_ring->tdt), + tx_ring->next_to_use, + tx_ring->next_to_clean, + tx_ring->buffer_info[i].time_stamp, + eop, + jiffies, + eop_desc->upper.fields.status); + netif_stop_queue(netdev); + } + } + adapter->total_tx_bytes += total_tx_bytes; + adapter->total_tx_packets += total_tx_packets; + adapter->net_stats.tx_bytes += total_tx_bytes; + adapter->net_stats.tx_packets += total_tx_packets; + return (count < tx_ring->count); +} + +/** + * e1000_rx_checksum - Receive Checksum Offload for 82543 + * @adapter: board private structure + * @status_err: receive descriptor status and error fields + * @csum: receive descriptor csum field + * @sk_buff: socket buffer with received data + **/ + +static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, + u32 csum, struct sk_buff *skb) +{ + struct e1000_hw *hw = &adapter->hw; + u16 status = (u16)status_err; + u8 errors = (u8)(status_err >> 24); + skb->ip_summed = CHECKSUM_NONE; + + /* 82543 or newer only */ + if (unlikely(hw->mac_type < e1000_82543)) return; + /* Ignore Checksum bit is set */ + if (unlikely(status & E1000_RXD_STAT_IXSM)) return; + /* TCP/UDP checksum error bit is set */ + if (unlikely(errors & E1000_RXD_ERR_TCPE)) { + /* let the stack verify checksum errors */ + adapter->hw_csum_err++; + return; + } + /* TCP/UDP Checksum has not been calculated */ + if (hw->mac_type <= e1000_82547_rev_2) { + if (!(status & E1000_RXD_STAT_TCPCS)) + return; + } else { + if (!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS))) + return; + } + /* It must be a TCP or UDP packet with a valid checksum */ + if (likely(status & E1000_RXD_STAT_TCPCS)) { + /* TCP checksum is good */ + skb->ip_summed = CHECKSUM_UNNECESSARY; + } else if (hw->mac_type > e1000_82547_rev_2) { + /* IP fragment with UDP payload */ + /* Hardware complements the payload checksum, so we undo it + * and then put the value in host order for further stack use. + */ + __sum16 sum = (__force __sum16)htons(csum); + skb->csum = csum_unfold(~sum); + skb->ip_summed = CHECKSUM_COMPLETE; + } + adapter->hw_csum_good++; +} + +/** + * e1000_clean_rx_irq - Send received data up the network stack; legacy + * @adapter: board private structure + **/ +static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc, *next_rxd; + struct e1000_buffer *buffer_info, *next_buffer; + unsigned long flags; + u32 length; + u8 last_byte; + unsigned int i; + int cleaned_count = 0; + bool cleaned = false; + unsigned int total_rx_bytes=0, total_rx_packets=0; + + i = rx_ring->next_to_clean; + rx_desc = E1000_RX_DESC(*rx_ring, i); + buffer_info = &rx_ring->buffer_info[i]; + + while (rx_desc->status & E1000_RXD_STAT_DD) { + struct sk_buff *skb; + u8 status; + + if (*work_done >= work_to_do) + break; + (*work_done)++; + + status = rx_desc->status; + skb = buffer_info->skb; + buffer_info->skb = NULL; + + prefetch(skb->data - NET_IP_ALIGN); + + if (++i == rx_ring->count) i = 0; + next_rxd = E1000_RX_DESC(*rx_ring, i); + prefetch(next_rxd); + + next_buffer = &rx_ring->buffer_info[i]; + + cleaned = true; + cleaned_count++; + pci_unmap_single(pdev, + buffer_info->dma, + buffer_info->length, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + length = le16_to_cpu(rx_desc->length); + /* !EOP means multiple descriptors were used to store a single + * packet, also make sure the frame isn't just CRC only */ + if (unlikely(!(status & E1000_RXD_STAT_EOP) || (length <= 4))) { + /* All receives must fit into a single buffer */ + E1000_DBG("%s: Receive packet consumed multiple" + " buffers\n", netdev->name); + /* recycle */ + buffer_info->skb = skb; + goto next_desc; + } + + if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) { + last_byte = *(skb->data + length - 1); + if (TBI_ACCEPT(hw, status, rx_desc->errors, length, + last_byte)) { + spin_lock_irqsave(&adapter->stats_lock, flags); + e1000_tbi_adjust_stats(hw, &adapter->stats, + length, skb->data); + spin_unlock_irqrestore(&adapter->stats_lock, + flags); + length--; + } else { + /* recycle */ + buffer_info->skb = skb; + goto next_desc; + } + } + + /* adjust length to remove Ethernet CRC, this must be + * done after the TBI_ACCEPT workaround above */ + length -= 4; + + /* probably a little skewed due to removing CRC */ + total_rx_bytes += length; + total_rx_packets++; + + /* code added for copybreak, this should improve + * performance for small packets with large amounts + * of reassembly being done in the stack */ + if (length < copybreak) { + struct sk_buff *new_skb = + netdev_alloc_skb(netdev, length + NET_IP_ALIGN); + if (new_skb) { + skb_reserve(new_skb, NET_IP_ALIGN); + skb_copy_to_linear_data_offset(new_skb, + -NET_IP_ALIGN, + (skb->data - + NET_IP_ALIGN), + (length + + NET_IP_ALIGN)); + /* save the skb in buffer_info as good */ + buffer_info->skb = skb; + skb = new_skb; + } + /* else just continue with the old one */ + } + /* end copybreak code */ + skb_put(skb, length); + + /* Receive Checksum Offload */ + e1000_rx_checksum(adapter, + (u32)(status) | + ((u32)(rx_desc->errors) << 24), + le16_to_cpu(rx_desc->csum), skb); + + skb->protocol = eth_type_trans(skb, netdev); + + if (unlikely(adapter->vlgrp && + (status & E1000_RXD_STAT_VP))) { + vlan_hwaccel_receive_skb(skb, adapter->vlgrp, + le16_to_cpu(rx_desc->special)); + } else { + netif_receive_skb(skb); + } + +next_desc: + rx_desc->status = 0; + + /* return some buffers to hardware, one at a time is too slow */ + if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) { + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + cleaned_count = 0; + } + + /* use prefetched values */ + rx_desc = next_rxd; + buffer_info = next_buffer; + } + rx_ring->next_to_clean = i; + + cleaned_count = E1000_DESC_UNUSED(rx_ring); + if (cleaned_count) + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + + adapter->total_rx_packets += total_rx_packets; + adapter->total_rx_bytes += total_rx_bytes; + adapter->net_stats.rx_bytes += total_rx_bytes; + adapter->net_stats.rx_packets += total_rx_packets; + return cleaned; +} + +/** + * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended + * @adapter: address of board private structure + **/ + +static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc; + struct e1000_buffer *buffer_info; + struct sk_buff *skb; + unsigned int i; + unsigned int bufsz = adapter->rx_buffer_len + NET_IP_ALIGN; + + i = rx_ring->next_to_use; + buffer_info = &rx_ring->buffer_info[i]; + + while (cleaned_count--) { + skb = buffer_info->skb; + if (skb) { + skb_trim(skb, 0); + goto map_skb; + } + + skb = netdev_alloc_skb(netdev, bufsz); + if (unlikely(!skb)) { + /* Better luck next round */ + adapter->alloc_rx_buff_failed++; + break; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + struct sk_buff *oldskb = skb; + DPRINTK(RX_ERR, ERR, "skb align check failed: %u bytes " + "at %p\n", bufsz, skb->data); + /* Try again, without freeing the previous */ + skb = netdev_alloc_skb(netdev, bufsz); + /* Failed allocation, critical failure */ + if (!skb) { + dev_kfree_skb(oldskb); + break; + } + + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + /* give up */ + dev_kfree_skb(skb); + dev_kfree_skb(oldskb); + break; /* while !buffer_info->skb */ + } + + /* Use new allocation */ + dev_kfree_skb(oldskb); + } + /* Make buffer alignment 2 beyond a 16 byte boundary + * this will result in a 16 byte aligned IP header after + * the 14 byte MAC header is removed + */ + skb_reserve(skb, NET_IP_ALIGN); + + buffer_info->skb = skb; + buffer_info->length = adapter->rx_buffer_len; +map_skb: + buffer_info->dma = pci_map_single(pdev, + skb->data, + adapter->rx_buffer_len, + PCI_DMA_FROMDEVICE); + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, + (void *)(unsigned long)buffer_info->dma, + adapter->rx_buffer_len)) { + DPRINTK(RX_ERR, ERR, + "dma align check failed: %u bytes at %p\n", + adapter->rx_buffer_len, + (void *)(unsigned long)buffer_info->dma); + dev_kfree_skb(skb); + buffer_info->skb = NULL; + + pci_unmap_single(pdev, buffer_info->dma, + adapter->rx_buffer_len, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + break; /* while !buffer_info->skb */ + } + rx_desc = E1000_RX_DESC(*rx_ring, i); + rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + + if (unlikely(++i == rx_ring->count)) + i = 0; + buffer_info = &rx_ring->buffer_info[i]; + } + + if (likely(rx_ring->next_to_use != i)) { + rx_ring->next_to_use = i; + if (unlikely(i-- == 0)) + i = (rx_ring->count - 1); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + writel(i, hw->hw_addr + rx_ring->rdt); + } +} + +/** + * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers. + * @adapter: + **/ + +static void e1000_smartspeed(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_status; + u16 phy_ctrl; + + if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg || + !(hw->autoneg_advertised & ADVERTISE_1000_FULL)) + return; + + if (adapter->smartspeed == 0) { + /* If Master/Slave config fault is asserted twice, + * we assume back-to-back */ + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status); + if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return; + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status); + if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return; + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl); + if (phy_ctrl & CR_1000T_MS_ENABLE) { + phy_ctrl &= ~CR_1000T_MS_ENABLE; + e1000_write_phy_reg(hw, PHY_1000T_CTRL, + phy_ctrl); + adapter->smartspeed++; + if (!e1000_phy_setup_autoneg(hw) && + !e1000_read_phy_reg(hw, PHY_CTRL, + &phy_ctrl)) { + phy_ctrl |= (MII_CR_AUTO_NEG_EN | + MII_CR_RESTART_AUTO_NEG); + e1000_write_phy_reg(hw, PHY_CTRL, + phy_ctrl); + } + } + return; + } else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) { + /* If still no link, perhaps using 2/3 pair cable */ + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl); + phy_ctrl |= CR_1000T_MS_ENABLE; + e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl); + if (!e1000_phy_setup_autoneg(hw) && + !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) { + phy_ctrl |= (MII_CR_AUTO_NEG_EN | + MII_CR_RESTART_AUTO_NEG); + e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl); + } + } + /* Restart process after E1000_SMARTSPEED_MAX iterations */ + if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX) + adapter->smartspeed = 0; +} + +/** + * e1000_ioctl - + * @netdev: + * @ifreq: + * @cmd: + **/ + +static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + switch (cmd) { + case SIOCGMIIPHY: + case SIOCGMIIREG: + case SIOCSMIIREG: + return e1000_mii_ioctl(netdev, ifr, cmd); + default: + return -EOPNOTSUPP; + } +} + +/** + * e1000_mii_ioctl - + * @netdev: + * @ifreq: + * @cmd: + **/ + +static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct mii_ioctl_data *data = if_mii(ifr); + int retval; + u16 mii_reg; + u16 spddplx; + unsigned long flags; + + if (hw->media_type != e1000_media_type_copper) + return -EOPNOTSUPP; + + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = hw->phy_addr; + break; + case SIOCGMIIREG: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + spin_lock_irqsave(&adapter->stats_lock, flags); + if (e1000_read_phy_reg(hw, data->reg_num & 0x1F, + &data->val_out)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); + break; + case SIOCSMIIREG: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (data->reg_num & ~(0x1F)) + return -EFAULT; + mii_reg = data->val_in; + spin_lock_irqsave(&adapter->stats_lock, flags); + if (e1000_write_phy_reg(hw, data->reg_num, + mii_reg)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); + if (hw->media_type == e1000_media_type_copper) { + switch (data->reg_num) { + case PHY_CTRL: + if (mii_reg & MII_CR_POWER_DOWN) + break; + if (mii_reg & MII_CR_AUTO_NEG_EN) { + hw->autoneg = 1; + hw->autoneg_advertised = 0x2F; + } else { + if (mii_reg & 0x40) + spddplx = SPEED_1000; + else if (mii_reg & 0x2000) + spddplx = SPEED_100; + else + spddplx = SPEED_10; + spddplx += (mii_reg & 0x100) + ? DUPLEX_FULL : + DUPLEX_HALF; + retval = e1000_set_spd_dplx(adapter, + spddplx); + if (retval) + return retval; + } + if (netif_running(adapter->netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + break; + case M88E1000_PHY_SPEC_CTRL: + case M88E1000_EXT_PHY_SPEC_CTRL: + if (e1000_phy_reset(hw)) + return -EIO; + break; + } + } else { + switch (data->reg_num) { + case PHY_CTRL: + if (mii_reg & MII_CR_POWER_DOWN) + break; + if (netif_running(adapter->netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + break; + } + } + break; + default: + return -EOPNOTSUPP; + } + return E1000_SUCCESS; +} + +void e1000_pci_set_mwi(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + int ret_val = pci_set_mwi(adapter->pdev); + + if (ret_val) + DPRINTK(PROBE, ERR, "Error in setting MWI\n"); +} + +void e1000_pci_clear_mwi(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + + pci_clear_mwi(adapter->pdev); +} + +int e1000_pcix_get_mmrbc(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + return pcix_get_mmrbc(adapter->pdev); +} + +void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc) +{ + struct e1000_adapter *adapter = hw->back; + pcix_set_mmrbc(adapter->pdev, mmrbc); +} + +s32 e1000_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) +{ + struct e1000_adapter *adapter = hw->back; + u16 cap_offset; + + cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); + if (!cap_offset) + return -E1000_ERR_CONFIG; + + pci_read_config_word(adapter->pdev, cap_offset + reg, value); + + return E1000_SUCCESS; +} + +void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value) +{ + outl(value, port); +} + +static void e1000_vlan_rx_register(struct net_device *netdev, + struct vlan_group *grp) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 ctrl, rctl; + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); + adapter->vlgrp = grp; + + if (grp) { + /* enable VLAN tag insert/strip */ + ctrl = er32(CTRL); + ctrl |= E1000_CTRL_VME; + ew32(CTRL, ctrl); + + if (adapter->hw.mac_type != e1000_ich8lan) { + /* enable VLAN receive filtering */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_CFIEN; + ew32(RCTL, rctl); + e1000_update_mng_vlan(adapter); + } + } else { + /* disable VLAN tag insert/strip */ + ctrl = er32(CTRL); + ctrl &= ~E1000_CTRL_VME; + ew32(CTRL, ctrl); + + if (adapter->hw.mac_type != e1000_ich8lan) { + if (adapter->mng_vlan_id != + (u16)E1000_MNG_VLAN_NONE) { + e1000_vlan_rx_kill_vid(netdev, + adapter->mng_vlan_id); + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + } + } + } + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); +} + +static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 vfta, index; + + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + (vid == adapter->mng_vlan_id)) + return; + /* add VID to filter table */ + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, VFTA, index); + vfta |= (1 << (vid & 0x1F)); + e1000_write_vfta(hw, index, vfta); +} + +static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 vfta, index; + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); + vlan_group_set_device(adapter->vlgrp, vid, NULL); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + (vid == adapter->mng_vlan_id)) { + /* release control to f/w */ + e1000_release_hw_control(adapter); + return; + } + + /* remove VID from filter table */ + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, VFTA, index); + vfta &= ~(1 << (vid & 0x1F)); + e1000_write_vfta(hw, index, vfta); +} + +static void e1000_restore_vlan(struct e1000_adapter *adapter) +{ + e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp); + + if (adapter->vlgrp) { + u16 vid; + for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) { + if (!vlan_group_get_device(adapter->vlgrp, vid)) + continue; + e1000_vlan_rx_add_vid(adapter->netdev, vid); + } + } +} + +int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx) +{ + struct e1000_hw *hw = &adapter->hw; + + hw->autoneg = 0; + + /* Fiber NICs only allow 1000 gbps Full duplex */ + if ((hw->media_type == e1000_media_type_fiber) && + spddplx != (SPEED_1000 + DUPLEX_FULL)) { + DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; + } + + switch (spddplx) { + case SPEED_10 + DUPLEX_HALF: + hw->forced_speed_duplex = e1000_10_half; + break; + case SPEED_10 + DUPLEX_FULL: + hw->forced_speed_duplex = e1000_10_full; + break; + case SPEED_100 + DUPLEX_HALF: + hw->forced_speed_duplex = e1000_100_half; + break; + case SPEED_100 + DUPLEX_FULL: + hw->forced_speed_duplex = e1000_100_full; + break; + case SPEED_1000 + DUPLEX_FULL: + hw->autoneg = 1; + hw->autoneg_advertised = ADVERTISE_1000_FULL; + break; + case SPEED_1000 + DUPLEX_HALF: /* not supported */ + default: + DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; + } + return 0; +} + +static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 ctrl, ctrl_ext, rctl, status; + u32 wufc = adapter->wol; +#ifdef CONFIG_PM + int retval = 0; +#endif + + netif_device_detach(netdev); + + if (netif_running(netdev)) { + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); + e1000_down(adapter); + } + +#ifdef CONFIG_PM + retval = pci_save_state(pdev); + if (retval) + return retval; +#endif + + status = er32(STATUS); + if (status & E1000_STATUS_LU) + wufc &= ~E1000_WUFC_LNKC; + + if (wufc) { + e1000_setup_rctl(adapter); + e1000_set_rx_mode(netdev); + + /* turn on all-multi mode if wake on multicast is enabled */ + if (wufc & E1000_WUFC_MC) { + rctl = er32(RCTL); + rctl |= E1000_RCTL_MPE; + ew32(RCTL, rctl); + } + + if (hw->mac_type >= e1000_82540) { + ctrl = er32(CTRL); + /* advertise wake from D3Cold */ + #define E1000_CTRL_ADVD3WUC 0x00100000 + /* phy power management enable */ + #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000 + ctrl |= E1000_CTRL_ADVD3WUC | + E1000_CTRL_EN_PHY_PWR_MGMT; + ew32(CTRL, ctrl); + } + + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { + /* keep the laser running in D3 */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA; + ew32(CTRL_EXT, ctrl_ext); + } + + /* Allow time for pending master requests to run */ + e1000_disable_pciex_master(hw); + + ew32(WUC, E1000_WUC_PME_EN); + ew32(WUFC, wufc); + } else { + ew32(WUC, 0); + ew32(WUFC, 0); + } + + e1000_release_manageability(adapter); + + *enable_wake = !!wufc; + + /* make sure adapter isn't asleep if manageability is enabled */ + if (adapter->en_mng_pt) + *enable_wake = true; + + if (hw->phy_type == e1000_phy_igp_3) + e1000_phy_powerdown_workaround(hw); + + if (netif_running(netdev)) + e1000_free_irq(adapter); + + /* Release control of h/w to f/w. If f/w is AMT enabled, this + * would have already happened in close and is redundant. */ + e1000_release_hw_control(adapter); + + pci_disable_device(pdev); + + return 0; +} + +#ifdef CONFIG_PM +static int e1000_suspend(struct pci_dev *pdev, pm_message_t state) +{ + int retval; + bool wake; + + retval = __e1000_shutdown(pdev, &wake); + if (retval) + return retval; + + if (wake) { + pci_prepare_to_sleep(pdev); + } else { + pci_wake_from_d3(pdev, false); + pci_set_power_state(pdev, PCI_D3hot); + } + + return 0; +} + +static int e1000_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 err; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { + printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n"); + return err; + } + pci_set_master(pdev); + + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + + if (netif_running(netdev)) { + err = e1000_request_irq(adapter); + if (err) + return err; + } + + e1000_power_up_phy(adapter); + e1000_reset(adapter); + ew32(WUS, ~0); + + e1000_init_manageability(adapter); + + if (netif_running(netdev)) + e1000_up(adapter); + + netif_device_attach(netdev); + + /* If the controller is 82573 and f/w is AMT, do not set + * DRV_LOAD until the interface is up. For all other cases, + * let the f/w know that the h/w is now under the control + * of the driver. */ + if (hw->mac_type != e1000_82573 || + !e1000_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + + return 0; +} +#endif + +static void e1000_shutdown(struct pci_dev *pdev) +{ + bool wake; + + __e1000_shutdown(pdev, &wake); + + if (system_state == SYSTEM_POWER_OFF) { + pci_wake_from_d3(pdev, wake); + pci_set_power_state(pdev, PCI_D3hot); + } +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling 'interrupt' - used by things like netconsole to send skbs + * without having to re-enable interrupts. It's not called while + * the interrupt routine is executing. + */ +static void e1000_netpoll(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + disable_irq(adapter->pdev->irq); + e1000_intr(adapter->pdev->irq, netdev); + enable_irq(adapter->pdev->irq); +} +#endif + +/** + * e1000_io_error_detected - called when PCI error is detected + * @pdev: Pointer to PCI device + * @state: The current pci conneection state + * + * This function is called after a PCI bus error affecting + * this device has been detected. + */ +static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + + netif_device_detach(netdev); + + if (state == pci_channel_io_perm_failure) + return PCI_ERS_RESULT_DISCONNECT; + + if (netif_running(netdev)) + e1000_down(adapter); + pci_disable_device(pdev); + + /* Request a slot slot reset. */ + return PCI_ERS_RESULT_NEED_RESET; +} + +/** + * e1000_io_slot_reset - called after the pci bus has been reset. + * @pdev: Pointer to PCI device + * + * Restart the card from scratch, as if from a cold-boot. Implementation + * resembles the first-half of the e1000_resume routine. + */ +static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int err; + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { + printk(KERN_ERR "e1000: Cannot re-enable PCI device after reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + pci_set_master(pdev); + + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + + e1000_reset(adapter); + ew32(WUS, ~0); + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * e1000_io_resume - called when traffic can start flowing again. + * @pdev: Pointer to PCI device + * + * This callback is called when the error recovery driver tells us that + * its OK to resume normal operation. Implementation resembles the + * second-half of the e1000_resume routine. + */ +static void e1000_io_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + e1000_init_manageability(adapter); + + if (netif_running(netdev)) { + if (e1000_up(adapter)) { + printk("e1000: can't bring device back up after reset\n"); + return; + } + } + + netif_device_attach(netdev); + + /* If the controller is 82573 and f/w is AMT, do not set + * DRV_LOAD until the interface is up. For all other cases, + * let the f/w know that the h/w is now under the control + * of the driver. */ + if (hw->mac_type != e1000_82573 || + !e1000_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + +} + +/* e1000_main.c */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_main-2.6.33-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_main-2.6.33-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,4894 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + + vim: noexpandtab + +*******************************************************************************/ + +#include "e1000-2.6.33-ethercat.h" +#include + +char e1000_driver_name[] = "ec_e1000"; +static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver"; +#define DRV_VERSION "7.3.21-k5-NAPI" +const char e1000_driver_version[] = DRV_VERSION; +static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation."; + +/* e1000_pci_tbl - PCI Device ID Table + * + * Last entry must be all 0s + * + * Macro expands to... + * {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} + */ +static struct pci_device_id e1000_pci_tbl[] = { + INTEL_E1000_ETHERNET_DEVICE(0x1000), + INTEL_E1000_ETHERNET_DEVICE(0x1001), + INTEL_E1000_ETHERNET_DEVICE(0x1004), + INTEL_E1000_ETHERNET_DEVICE(0x1008), + INTEL_E1000_ETHERNET_DEVICE(0x1009), + INTEL_E1000_ETHERNET_DEVICE(0x100C), + INTEL_E1000_ETHERNET_DEVICE(0x100D), + INTEL_E1000_ETHERNET_DEVICE(0x100E), + INTEL_E1000_ETHERNET_DEVICE(0x100F), + INTEL_E1000_ETHERNET_DEVICE(0x1010), + INTEL_E1000_ETHERNET_DEVICE(0x1011), + INTEL_E1000_ETHERNET_DEVICE(0x1012), + INTEL_E1000_ETHERNET_DEVICE(0x1013), + INTEL_E1000_ETHERNET_DEVICE(0x1014), + INTEL_E1000_ETHERNET_DEVICE(0x1015), + INTEL_E1000_ETHERNET_DEVICE(0x1016), + INTEL_E1000_ETHERNET_DEVICE(0x1017), + INTEL_E1000_ETHERNET_DEVICE(0x1018), + INTEL_E1000_ETHERNET_DEVICE(0x1019), + INTEL_E1000_ETHERNET_DEVICE(0x101A), + INTEL_E1000_ETHERNET_DEVICE(0x101D), + INTEL_E1000_ETHERNET_DEVICE(0x101E), + INTEL_E1000_ETHERNET_DEVICE(0x1026), + INTEL_E1000_ETHERNET_DEVICE(0x1027), + INTEL_E1000_ETHERNET_DEVICE(0x1028), + INTEL_E1000_ETHERNET_DEVICE(0x1075), + INTEL_E1000_ETHERNET_DEVICE(0x1076), + INTEL_E1000_ETHERNET_DEVICE(0x1077), + INTEL_E1000_ETHERNET_DEVICE(0x1078), + INTEL_E1000_ETHERNET_DEVICE(0x1079), + INTEL_E1000_ETHERNET_DEVICE(0x107A), + INTEL_E1000_ETHERNET_DEVICE(0x107B), + INTEL_E1000_ETHERNET_DEVICE(0x107C), + INTEL_E1000_ETHERNET_DEVICE(0x108A), + INTEL_E1000_ETHERNET_DEVICE(0x1099), + INTEL_E1000_ETHERNET_DEVICE(0x10B5), + /* required last entry */ + {0,} +}; + +// do not auto-load driver +// MODULE_DEVICE_TABLE(pci, e1000_pci_tbl); + +int e1000_up(struct e1000_adapter *adapter); +void e1000_down(struct e1000_adapter *adapter); +void e1000_reinit_locked(struct e1000_adapter *adapter); +void e1000_reset(struct e1000_adapter *adapter); +int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +void e1000_free_all_rx_resources(struct e1000_adapter *adapter); +static int e1000_setup_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *txdr); +static int e1000_setup_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rxdr); +static void e1000_free_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static void e1000_free_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring); +void e1000_update_stats(struct e1000_adapter *adapter); + +static int e1000_init_module(void); +static void e1000_exit_module(void); +static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent); +static void __devexit e1000_remove(struct pci_dev *pdev); +static int e1000_alloc_queues(struct e1000_adapter *adapter); +static int e1000_sw_init(struct e1000_adapter *adapter); +static int e1000_open(struct net_device *netdev); +static int e1000_close(struct net_device *netdev); +static void e1000_configure_tx(struct e1000_adapter *adapter); +static void e1000_configure_rx(struct e1000_adapter *adapter); +static void e1000_setup_rctl(struct e1000_adapter *adapter); +static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter); +static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter); +static void e1000_clean_tx_ring(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static void e1000_clean_rx_ring(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring); +static void e1000_set_rx_mode(struct net_device *netdev); +static void e1000_update_phy_info(unsigned long data); +static void e1000_watchdog(unsigned long data); +static void e1000_82547_tx_fifo_stall(unsigned long data); +static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, + struct net_device *netdev); +static struct net_device_stats * e1000_get_stats(struct net_device *netdev); +static int e1000_change_mtu(struct net_device *netdev, int new_mtu); +static int e1000_set_mac(struct net_device *netdev, void *p); +void ec_poll(struct net_device *); +static irqreturn_t e1000_intr(int irq, void *data); +static bool e1000_clean_tx_irq(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static int e1000_clean(struct napi_struct *napi, int budget); +static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); +static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); +static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); +static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); +static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd); +static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd); +static void e1000_enter_82542_rst(struct e1000_adapter *adapter); +static void e1000_leave_82542_rst(struct e1000_adapter *adapter); +static void e1000_tx_timeout(struct net_device *dev); +static void e1000_reset_task(struct work_struct *work); +static void e1000_smartspeed(struct e1000_adapter *adapter); +static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, + struct sk_buff *skb); + +static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp); +static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); +static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); +static void e1000_restore_vlan(struct e1000_adapter *adapter); + +#ifdef CONFIG_PM +static int e1000_suspend(struct pci_dev *pdev, pm_message_t state); +static int e1000_resume(struct pci_dev *pdev); +#endif +static void e1000_shutdown(struct pci_dev *pdev); + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* for netdump / net console */ +static void e1000_netpoll (struct net_device *netdev); +#endif + +#define COPYBREAK_DEFAULT 256 +static unsigned int copybreak __read_mostly = COPYBREAK_DEFAULT; +module_param(copybreak, uint, 0644); +MODULE_PARM_DESC(copybreak, + "Maximum size of packet that is copied to a new buffer on receive"); + +static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state); +static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev); +static void e1000_io_resume(struct pci_dev *pdev); + +static struct pci_error_handlers e1000_err_handler = { + .error_detected = e1000_io_error_detected, + .slot_reset = e1000_io_slot_reset, + .resume = e1000_io_resume, +}; + +static struct pci_driver e1000_driver = { + .name = e1000_driver_name, + .id_table = e1000_pci_tbl, + .probe = e1000_probe, + .remove = __devexit_p(e1000_remove), +#ifdef CONFIG_PM + /* Power Managment Hooks */ + .suspend = e1000_suspend, + .resume = e1000_resume, +#endif + .shutdown = e1000_shutdown, + .err_handler = &e1000_err_handler +}; + +MODULE_AUTHOR("Florian Pose "); +MODULE_DESCRIPTION("EtherCAT-capable Intel(R) PRO/1000 Network Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + +/** + * e1000_init_module - Driver Registration Routine + * + * e1000_init_module is the first routine called when the driver is + * loaded. All it does is register with the PCI subsystem. + **/ + +static int __init e1000_init_module(void) +{ + int ret; + printk(KERN_INFO "%s - version %s\n", + e1000_driver_string, e1000_driver_version); + + printk(KERN_INFO "%s\n", e1000_copyright); + + ret = pci_register_driver(&e1000_driver); + if (copybreak != COPYBREAK_DEFAULT) { + if (copybreak == 0) + printk(KERN_INFO "e1000: copybreak disabled\n"); + else + printk(KERN_INFO "e1000: copybreak enabled for " + "packets <= %u bytes\n", copybreak); + } + return ret; +} + +module_init(e1000_init_module); + +/** + * e1000_exit_module - Driver Exit Cleanup Routine + * + * e1000_exit_module is called just before the driver is removed + * from memory. + **/ + +static void __exit e1000_exit_module(void) +{ + pci_unregister_driver(&e1000_driver); +} + +module_exit(e1000_exit_module); + +static int e1000_request_irq(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + irq_handler_t handler = e1000_intr; + int irq_flags = IRQF_SHARED; + int err; + + if (adapter->ecdev) + return 0; + + err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name, + netdev); + if (err) { + DPRINTK(PROBE, ERR, + "Unable to allocate interrupt Error: %d\n", err); + } + + return err; +} + +static void e1000_free_irq(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + + if (adapter->ecdev) + return; + + free_irq(adapter->pdev->irq, netdev); +} + +/** + * e1000_irq_disable - Mask off interrupt generation on the NIC + * @adapter: board private structure + **/ + +static void e1000_irq_disable(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->ecdev) + return; + + ew32(IMC, ~0); + E1000_WRITE_FLUSH(); + synchronize_irq(adapter->pdev->irq); +} + +/** + * e1000_irq_enable - Enable default interrupt generation settings + * @adapter: board private structure + **/ + +static void e1000_irq_enable(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->ecdev) + return; + + ew32(IMS, IMS_ENABLE_MASK); + E1000_WRITE_FLUSH(); +} + +static void e1000_update_mng_vlan(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u16 vid = hw->mng_cookie.vlan_id; + u16 old_vid = adapter->mng_vlan_id; + if (adapter->vlgrp) { + if (!vlan_group_get_device(adapter->vlgrp, vid)) { + if (hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) { + e1000_vlan_rx_add_vid(netdev, vid); + adapter->mng_vlan_id = vid; + } else + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + + if ((old_vid != (u16)E1000_MNG_VLAN_NONE) && + (vid != old_vid) && + !vlan_group_get_device(adapter->vlgrp, old_vid)) + e1000_vlan_rx_kill_vid(netdev, old_vid); + } else + adapter->mng_vlan_id = vid; + } +} + +static void e1000_init_manageability(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->en_mng_pt) { + u32 manc = er32(MANC); + + /* disable hardware interception of ARP */ + manc &= ~(E1000_MANC_ARP_EN); + + ew32(MANC, manc); + } +} + +static void e1000_release_manageability(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->en_mng_pt) { + u32 manc = er32(MANC); + + /* re-enable hardware interception of ARP */ + manc |= E1000_MANC_ARP_EN; + + ew32(MANC, manc); + } +} + +/** + * e1000_configure - configure the hardware for RX and TX + * @adapter = private board structure + **/ +static void e1000_configure(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + int i; + + e1000_set_rx_mode(netdev); + + e1000_restore_vlan(adapter); + e1000_init_manageability(adapter); + + e1000_configure_tx(adapter); + e1000_setup_rctl(adapter); + e1000_configure_rx(adapter); + /* call E1000_DESC_UNUSED which always leaves + * at least 1 descriptor unused to make sure + * next_to_use != next_to_clean */ + for (i = 0; i < adapter->num_rx_queues; i++) { + struct e1000_rx_ring *ring = &adapter->rx_ring[i]; + if (adapter->ecdev) { + /* fill rx ring completely! */ + adapter->alloc_rx_buf(adapter, ring, ring->count); + } else { + /* this one leaves the last ring element unallocated! */ + adapter->alloc_rx_buf(adapter, ring, + E1000_DESC_UNUSED(ring)); + } + } + + adapter->tx_queue_len = netdev->tx_queue_len; +} + +int e1000_up(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* hardware has been reset, we need to reload some things */ + e1000_configure(adapter); + + clear_bit(__E1000_DOWN, &adapter->flags); + + if (!adapter->ecdev) { + napi_enable(&adapter->napi); + + e1000_irq_enable(adapter); + + netif_wake_queue(adapter->netdev); + + /* fire a link change interrupt to start the watchdog */ + ew32(ICS, E1000_ICS_LSC); + } + return 0; +} + +/** + * e1000_power_up_phy - restore link in case the phy was powered down + * @adapter: address of board private structure + * + * The phy may be powered down to save power and turn off link when the + * driver is unloaded and wake on lan is not enabled (among others) + * *** this routine MUST be followed by a call to e1000_reset *** + * + **/ + +void e1000_power_up_phy(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 mii_reg = 0; + + /* Just clear the power down bit to wake the phy back up */ + if (hw->media_type == e1000_media_type_copper) { + /* according to the manual, the phy will retain its + * settings across a power-down/up cycle */ + e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg); + mii_reg &= ~MII_CR_POWER_DOWN; + e1000_write_phy_reg(hw, PHY_CTRL, mii_reg); + } +} + +static void e1000_power_down_phy(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* Power down the PHY so no link is implied when interface is down * + * The PHY cannot be powered down if any of the following is true * + * (a) WoL is enabled + * (b) AMT is active + * (c) SoL/IDER session is active */ + if (!adapter->wol && hw->mac_type >= e1000_82540 && + hw->media_type == e1000_media_type_copper) { + u16 mii_reg = 0; + + switch (hw->mac_type) { + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (er32(MANC) & E1000_MANC_SMBUS_EN) + goto out; + break; + default: + goto out; + } + e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg); + mii_reg |= MII_CR_POWER_DOWN; + e1000_write_phy_reg(hw, PHY_CTRL, mii_reg); + mdelay(1); + } +out: + return; +} + +void e1000_down(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl, tctl; + + /* signal that we're down so the interrupt handler does not + * reschedule our watchdog timer */ + set_bit(__E1000_DOWN, &adapter->flags); + + /* disable receives in the hardware */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + + if (!adapter->ecdev) { + /* flush and sleep below */ + netif_tx_disable(netdev); + } + + /* disable transmits in the hardware */ + tctl = er32(TCTL); + tctl &= ~E1000_TCTL_EN; + ew32(TCTL, tctl); + /* flush both disables and wait for them to finish */ + E1000_WRITE_FLUSH(); + msleep(10); + + if (!adapter->ecdev) { + napi_disable(&adapter->napi); + + e1000_irq_disable(adapter); + + del_timer_sync(&adapter->tx_fifo_stall_timer); + del_timer_sync(&adapter->watchdog_timer); + del_timer_sync(&adapter->phy_info_timer); + } + + netdev->tx_queue_len = adapter->tx_queue_len; + adapter->link_speed = 0; + adapter->link_duplex = 0; + if (!adapter->ecdev) { + netif_carrier_off(netdev); + } + + e1000_reset(adapter); + e1000_clean_all_tx_rings(adapter); + e1000_clean_all_rx_rings(adapter); +} + +void e1000_reinit_locked(struct e1000_adapter *adapter) +{ + WARN_ON(in_interrupt()); + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + e1000_down(adapter); + e1000_up(adapter); + clear_bit(__E1000_RESETTING, &adapter->flags); +} + +void e1000_reset(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 pba = 0, tx_space, min_tx_space, min_rx_space; + bool legacy_pba_adjust = false; + u16 hwm; + + /* Repartition Pba for greater than 9k mtu + * To take effect CTRL.RST is required. + */ + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + case e1000_82540: + case e1000_82541: + case e1000_82541_rev_2: + legacy_pba_adjust = true; + pba = E1000_PBA_48K; + break; + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + pba = E1000_PBA_48K; + break; + case e1000_82547: + case e1000_82547_rev_2: + legacy_pba_adjust = true; + pba = E1000_PBA_30K; + break; + case e1000_undefined: + case e1000_num_macs: + break; + } + + if (legacy_pba_adjust) { + if (hw->max_frame_size > E1000_RXBUFFER_8192) + pba -= 8; /* allocate more FIFO for Tx */ + + if (hw->mac_type == e1000_82547) { + adapter->tx_fifo_head = 0; + adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT; + adapter->tx_fifo_size = + (E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT; + atomic_set(&adapter->tx_fifo_stall, 0); + } + } else if (hw->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) { + /* adjust PBA for jumbo frames */ + ew32(PBA, pba); + + /* To maintain wire speed transmits, the Tx FIFO should be + * large enough to accommodate two full transmit packets, + * rounded up to the next 1KB and expressed in KB. Likewise, + * the Rx FIFO should be large enough to accommodate at least + * one full receive packet and is similarly rounded up and + * expressed in KB. */ + pba = er32(PBA); + /* upper 16 bits has Tx packet buffer allocation size in KB */ + tx_space = pba >> 16; + /* lower 16 bits has Rx packet buffer allocation size in KB */ + pba &= 0xffff; + /* + * the tx fifo also stores 16 bytes of information about the tx + * but don't include ethernet FCS because hardware appends it + */ + min_tx_space = (hw->max_frame_size + + sizeof(struct e1000_tx_desc) - + ETH_FCS_LEN) * 2; + min_tx_space = ALIGN(min_tx_space, 1024); + min_tx_space >>= 10; + /* software strips receive CRC, so leave room for it */ + min_rx_space = hw->max_frame_size; + min_rx_space = ALIGN(min_rx_space, 1024); + min_rx_space >>= 10; + + /* If current Tx allocation is less than the min Tx FIFO size, + * and the min Tx FIFO size is less than the current Rx FIFO + * allocation, take space away from current Rx allocation */ + if (tx_space < min_tx_space && + ((min_tx_space - tx_space) < pba)) { + pba = pba - (min_tx_space - tx_space); + + /* PCI/PCIx hardware has PBA alignment constraints */ + switch (hw->mac_type) { + case e1000_82545 ... e1000_82546_rev_3: + pba &= ~(E1000_PBA_8K - 1); + break; + default: + break; + } + + /* if short on rx space, rx wins and must trump tx + * adjustment or use Early Receive if available */ + if (pba < min_rx_space) + pba = min_rx_space; + } + } + + ew32(PBA, pba); + + /* + * flow control settings: + * The high water mark must be low enough to fit one full frame + * (or the size used for early receive) above it in the Rx FIFO. + * Set it to the lower of: + * - 90% of the Rx FIFO size, and + * - the full Rx FIFO size minus the early receive size (for parts + * with ERT support assuming ERT set to E1000_ERT_2048), or + * - the full Rx FIFO size minus one full frame + */ + hwm = min(((pba << 10) * 9 / 10), + ((pba << 10) - hw->max_frame_size)); + + hw->fc_high_water = hwm & 0xFFF8; /* 8-byte granularity */ + hw->fc_low_water = hw->fc_high_water - 8; + hw->fc_pause_time = E1000_FC_PAUSE_TIME; + hw->fc_send_xon = 1; + hw->fc = hw->original_fc; + + /* Allow time for pending master requests to run */ + e1000_reset_hw(hw); + if (hw->mac_type >= e1000_82544) + ew32(WUC, 0); + + if (e1000_init_hw(hw)) + DPRINTK(PROBE, ERR, "Hardware Error\n"); + e1000_update_mng_vlan(adapter); + + /* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */ + if (hw->mac_type >= e1000_82544 && + hw->autoneg == 1 && + hw->autoneg_advertised == ADVERTISE_1000_FULL) { + u32 ctrl = er32(CTRL); + /* clear phy power management bit if we are in gig only mode, + * which if enabled will attempt negotiation to 100Mb, which + * can cause a loss of link at power off or driver unload */ + ctrl &= ~E1000_CTRL_SWDPIN3; + ew32(CTRL, ctrl); + } + + /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ + ew32(VET, ETHERNET_IEEE_VLAN_TYPE); + + e1000_reset_adaptive(hw); + e1000_phy_get_info(hw, &adapter->phy_info); + + e1000_release_manageability(adapter); +} + +/** + * Dump the eeprom for users having checksum issues + **/ +static void e1000_dump_eeprom(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct ethtool_eeprom eeprom; + const struct ethtool_ops *ops = netdev->ethtool_ops; + u8 *data; + int i; + u16 csum_old, csum_new = 0; + + eeprom.len = ops->get_eeprom_len(netdev); + eeprom.offset = 0; + + data = kmalloc(eeprom.len, GFP_KERNEL); + if (!data) { + printk(KERN_ERR "Unable to allocate memory to dump EEPROM" + " data\n"); + return; + } + + ops->get_eeprom(netdev, &eeprom, data); + + csum_old = (data[EEPROM_CHECKSUM_REG * 2]) + + (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8); + for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2) + csum_new += data[i] + (data[i + 1] << 8); + csum_new = EEPROM_SUM - csum_new; + + printk(KERN_ERR "/*********************/\n"); + printk(KERN_ERR "Current EEPROM Checksum : 0x%04x\n", csum_old); + printk(KERN_ERR "Calculated : 0x%04x\n", csum_new); + + printk(KERN_ERR "Offset Values\n"); + printk(KERN_ERR "======== ======\n"); + print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0); + + printk(KERN_ERR "Include this output when contacting your support " + "provider.\n"); + printk(KERN_ERR "This is not a software error! Something bad " + "happened to your hardware or\n"); + printk(KERN_ERR "EEPROM image. Ignoring this " + "problem could result in further problems,\n"); + printk(KERN_ERR "possibly loss of data, corruption or system hangs!\n"); + printk(KERN_ERR "The MAC Address will be reset to 00:00:00:00:00:00, " + "which is invalid\n"); + printk(KERN_ERR "and requires you to set the proper MAC " + "address manually before continuing\n"); + printk(KERN_ERR "to enable this network device.\n"); + printk(KERN_ERR "Please inspect the EEPROM dump and report the issue " + "to your hardware vendor\n"); + printk(KERN_ERR "or Intel Customer Support.\n"); + printk(KERN_ERR "/*********************/\n"); + + kfree(data); +} + +/** + * e1000_is_need_ioport - determine if an adapter needs ioport resources or not + * @pdev: PCI device information struct + * + * Return true if an adapter needs ioport resources + **/ +static int e1000_is_need_ioport(struct pci_dev *pdev) +{ + switch (pdev->device) { + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541ER_LOM: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + return true; + default: + return false; + } +} + +static const struct net_device_ops e1000_netdev_ops = { + .ndo_open = e1000_open, + .ndo_stop = e1000_close, + .ndo_start_xmit = e1000_xmit_frame, + .ndo_get_stats = e1000_get_stats, + .ndo_set_rx_mode = e1000_set_rx_mode, + .ndo_set_mac_address = e1000_set_mac, + .ndo_tx_timeout = e1000_tx_timeout, + .ndo_change_mtu = e1000_change_mtu, + .ndo_do_ioctl = e1000_ioctl, + .ndo_validate_addr = eth_validate_addr, + + .ndo_vlan_rx_register = e1000_vlan_rx_register, + .ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = e1000_netpoll, +#endif +}; + +/** + * e1000_probe - Device Initialization Routine + * @pdev: PCI device information struct + * @ent: entry in e1000_pci_tbl + * + * Returns 0 on success, negative on failure + * + * e1000_probe initializes an adapter identified by a pci_dev structure. + * The OS initialization, configuring of the adapter private structure, + * and a hardware reset occur. + **/ +static int __devinit e1000_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *netdev; + struct e1000_adapter *adapter; + struct e1000_hw *hw; + + static int cards_found = 0; + static int global_quad_port_a = 0; /* global ksp3 port a indication */ + int i, err, pci_using_dac; + u16 eeprom_data = 0; + u16 eeprom_apme_mask = E1000_EEPROM_APME; + int bars, need_ioport; + + /* do not allocate ioport bars when not needed */ + need_ioport = e1000_is_need_ioport(pdev); + if (need_ioport) { + bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO); + err = pci_enable_device(pdev); + } else { + bars = pci_select_bars(pdev, IORESOURCE_MEM); + err = pci_enable_device_mem(pdev); + } + if (err) + return err; + + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && + !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { + pci_using_dac = 1; + } else { + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + E1000_ERR("No usable DMA configuration, " + "aborting\n"); + goto err_dma; + } + } + pci_using_dac = 0; + } + + err = pci_request_selected_regions(pdev, bars, e1000_driver_name); + if (err) + goto err_pci_reg; + + pci_set_master(pdev); + + err = -ENOMEM; + netdev = alloc_etherdev(sizeof(struct e1000_adapter)); + if (!netdev) + goto err_alloc_etherdev; + + SET_NETDEV_DEV(netdev, &pdev->dev); + + pci_set_drvdata(pdev, netdev); + adapter = netdev_priv(netdev); + adapter->netdev = netdev; + adapter->pdev = pdev; + adapter->msg_enable = (1 << debug) - 1; + adapter->bars = bars; + adapter->need_ioport = need_ioport; + + hw = &adapter->hw; + hw->back = adapter; + + err = -EIO; + hw->hw_addr = pci_ioremap_bar(pdev, BAR_0); + if (!hw->hw_addr) + goto err_ioremap; + + if (adapter->need_ioport) { + for (i = BAR_1; i <= BAR_5; i++) { + if (pci_resource_len(pdev, i) == 0) + continue; + if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { + hw->io_base = pci_resource_start(pdev, i); + break; + } + } + } + + netdev->netdev_ops = &e1000_netdev_ops; + e1000_set_ethtool_ops(netdev); + netdev->watchdog_timeo = 5 * HZ; + netif_napi_add(netdev, &adapter->napi, e1000_clean, 64); + + strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); + + adapter->bd_number = cards_found; + + /* setup the private structure */ + + err = e1000_sw_init(adapter); + if (err) + goto err_sw_init; + + err = -EIO; + + if (hw->mac_type >= e1000_82543) { + netdev->features = NETIF_F_SG | + NETIF_F_HW_CSUM | + NETIF_F_HW_VLAN_TX | + NETIF_F_HW_VLAN_RX | + NETIF_F_HW_VLAN_FILTER; + } + + if ((hw->mac_type >= e1000_82544) && + (hw->mac_type != e1000_82547)) + netdev->features |= NETIF_F_TSO; + + if (pci_using_dac) + netdev->features |= NETIF_F_HIGHDMA; + + netdev->vlan_features |= NETIF_F_TSO; + netdev->vlan_features |= NETIF_F_HW_CSUM; + netdev->vlan_features |= NETIF_F_SG; + + adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw); + + /* initialize eeprom parameters */ + if (e1000_init_eeprom_params(hw)) { + E1000_ERR("EEPROM initialization failed\n"); + goto err_eeprom; + } + + /* before reading the EEPROM, reset the controller to + * put the device in a known good starting state */ + + e1000_reset_hw(hw); + + /* make sure the EEPROM is good */ + if (e1000_validate_eeprom_checksum(hw) < 0) { + DPRINTK(PROBE, ERR, "The EEPROM Checksum Is Not Valid\n"); + e1000_dump_eeprom(adapter); + /* + * set MAC address to all zeroes to invalidate and temporary + * disable this device for the user. This blocks regular + * traffic while still permitting ethtool ioctls from reaching + * the hardware as well as allowing the user to run the + * interface after manually setting a hw addr using + * `ip set address` + */ + memset(hw->mac_addr, 0, netdev->addr_len); + } else { + /* copy the MAC address out of the EEPROM */ + if (e1000_read_mac_addr(hw)) + DPRINTK(PROBE, ERR, "EEPROM Read Error\n"); + } + /* don't block initalization here due to bad MAC address */ + memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len); + memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len); + + if (!is_valid_ether_addr(netdev->perm_addr)) + DPRINTK(PROBE, ERR, "Invalid MAC Address\n"); + + e1000_get_bus_info(hw); + + init_timer(&adapter->tx_fifo_stall_timer); + adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall; + adapter->tx_fifo_stall_timer.data = (unsigned long)adapter; + + init_timer(&adapter->watchdog_timer); + adapter->watchdog_timer.function = &e1000_watchdog; + adapter->watchdog_timer.data = (unsigned long) adapter; + + init_timer(&adapter->phy_info_timer); + adapter->phy_info_timer.function = &e1000_update_phy_info; + adapter->phy_info_timer.data = (unsigned long)adapter; + + INIT_WORK(&adapter->reset_task, e1000_reset_task); + + e1000_check_options(adapter); + + /* Initial Wake on LAN setting + * If APM wake is enabled in the EEPROM, + * enable the ACPI Magic Packet filter + */ + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + break; + case e1000_82544: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data); + eeprom_apme_mask = E1000_EEPROM_82544_APM; + break; + case e1000_82546: + case e1000_82546_rev_3: + if (er32(STATUS) & E1000_STATUS_FUNC_1){ + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data); + break; + } + /* Fall Through */ + default: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data); + break; + } + if (eeprom_data & eeprom_apme_mask) + adapter->eeprom_wol |= E1000_WUFC_MAG; + + /* now that we have the eeprom settings, apply the special cases + * where the eeprom may be wrong or the board simply won't support + * wake on lan on a particular port */ + switch (pdev->device) { + case E1000_DEV_ID_82546GB_PCIE: + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + /* Wake events only supported on port A for dual fiber + * regardless of eeprom setting */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* if quad port adapter, disable WoL on all but port A */ + if (global_quad_port_a != 0) + adapter->eeprom_wol = 0; + else + adapter->quad_port_a = 1; + /* Reset for multiple quad port adapters */ + if (++global_quad_port_a == 4) + global_quad_port_a = 0; + break; + } + + /* initialize the wol settings based on the eeprom settings */ + adapter->wol = adapter->eeprom_wol; + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + + /* print bus type/speed/width info */ + DPRINTK(PROBE, INFO, "(PCI%s:%s:%s) ", + ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""), + ((hw->bus_speed == e1000_bus_speed_133) ? "133MHz" : + (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" : + (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" : + (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"), + ((hw->bus_width == e1000_bus_width_64) ? "64-bit" : "32-bit")); + + printk("%pM\n", netdev->dev_addr); + + /* reset the hardware with the new settings */ + e1000_reset(adapter); + + // offer device to EtherCAT master module + adapter->ecdev = ecdev_offer(netdev, ec_poll, THIS_MODULE); + if (adapter->ecdev) { + if (ecdev_open(adapter->ecdev)) { + ecdev_withdraw(adapter->ecdev); + goto err_register; + } + } else { + strcpy(netdev->name, "eth%d"); + err = register_netdev(netdev); + if (err) + goto err_register; + + /* carrier off reporting is important to ethtool even BEFORE open */ + netif_carrier_off(netdev); + } + + DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n"); + + cards_found++; + return 0; + +err_register: +err_eeprom: + e1000_phy_hw_reset(hw); + + if (hw->flash_address) + iounmap(hw->flash_address); + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); +err_sw_init: + iounmap(hw->hw_addr); +err_ioremap: + free_netdev(netdev); +err_alloc_etherdev: + pci_release_selected_regions(pdev, bars); +err_pci_reg: +err_dma: + pci_disable_device(pdev); + return err; +} + +/** + * e1000_remove - Device Removal Routine + * @pdev: PCI device information struct + * + * e1000_remove is called by the PCI subsystem to alert the driver + * that it should release a PCI device. The could be caused by a + * Hot-Plug event, or because the driver is going to be removed from + * memory. + **/ + +static void __devexit e1000_remove(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + set_bit(__E1000_DOWN, &adapter->flags); + + if (!adapter->ecdev) { + del_timer_sync(&adapter->tx_fifo_stall_timer); + del_timer_sync(&adapter->watchdog_timer); + del_timer_sync(&adapter->phy_info_timer); + } + + cancel_work_sync(&adapter->reset_task); + + e1000_release_manageability(adapter); + + if (adapter->ecdev) { + ecdev_close(adapter->ecdev); + ecdev_withdraw(adapter->ecdev); + } else { + unregister_netdev(netdev); + } + + e1000_phy_hw_reset(hw); + + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); + + iounmap(hw->hw_addr); + if (hw->flash_address) + iounmap(hw->flash_address); + pci_release_selected_regions(pdev, adapter->bars); + + free_netdev(netdev); + + pci_disable_device(pdev); +} + +/** + * e1000_sw_init - Initialize general software structures (struct e1000_adapter) + * @adapter: board private structure to initialize + * + * e1000_sw_init initializes the Adapter private data structure. + * Fields are initialized based on PCI device information and + * OS network device settings (MTU size). + **/ + +static int __devinit e1000_sw_init(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + + /* PCI config space info */ + + hw->vendor_id = pdev->vendor; + hw->device_id = pdev->device; + hw->subsystem_vendor_id = pdev->subsystem_vendor; + hw->subsystem_id = pdev->subsystem_device; + hw->revision_id = pdev->revision; + + pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word); + + adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; + hw->max_frame_size = netdev->mtu + + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE; + hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE; + + /* identify the MAC */ + + if (e1000_set_mac_type(hw)) { + DPRINTK(PROBE, ERR, "Unknown MAC Type\n"); + return -EIO; + } + + switch (hw->mac_type) { + default: + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + hw->phy_init_script = 1; + break; + } + + e1000_set_media_type(hw); + + hw->wait_autoneg_complete = false; + hw->tbi_compatibility_en = true; + hw->adaptive_ifs = true; + + /* Copper options */ + + if (hw->media_type == e1000_media_type_copper) { + hw->mdix = AUTO_ALL_MODES; + hw->disable_polarity_correction = false; + hw->master_slave = E1000_MASTER_SLAVE; + } + + adapter->num_tx_queues = 1; + adapter->num_rx_queues = 1; + + if (e1000_alloc_queues(adapter)) { + DPRINTK(PROBE, ERR, "Unable to allocate memory for queues\n"); + return -ENOMEM; + } + + /* Explicitly disable IRQ since the NIC can be in any state. */ + e1000_irq_disable(adapter); + + spin_lock_init(&adapter->stats_lock); + + set_bit(__E1000_DOWN, &adapter->flags); + + return 0; +} + +/** + * e1000_alloc_queues - Allocate memory for all rings + * @adapter: board private structure to initialize + * + * We allocate one ring per queue at run-time since we don't know the + * number of queues at compile-time. + **/ + +static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter) +{ + adapter->tx_ring = kcalloc(adapter->num_tx_queues, + sizeof(struct e1000_tx_ring), GFP_KERNEL); + if (!adapter->tx_ring) + return -ENOMEM; + + adapter->rx_ring = kcalloc(adapter->num_rx_queues, + sizeof(struct e1000_rx_ring), GFP_KERNEL); + if (!adapter->rx_ring) { + kfree(adapter->tx_ring); + return -ENOMEM; + } + + return E1000_SUCCESS; +} + +/** + * e1000_open - Called when a network interface is made active + * @netdev: network interface device structure + * + * Returns 0 on success, negative value on failure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). At this point all resources needed + * for transmit and receive operations are allocated, the interrupt + * handler is registered with the OS, the watchdog timer is started, + * and the stack is notified that the interface is ready. + **/ + +static int e1000_open(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int err; + + /* disallow open during test */ + if (test_bit(__E1000_TESTING, &adapter->flags)) + return -EBUSY; + + netif_carrier_off(netdev); + + /* allocate transmit descriptors */ + err = e1000_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* allocate receive descriptors */ + err = e1000_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + + e1000_power_up_phy(adapter); + + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) { + e1000_update_mng_vlan(adapter); + } + + /* before we allocate an interrupt, we must be ready to handle it. + * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt + * as soon as we call pci_request_irq, so we have to setup our + * clean_rx handler before we do so. */ + e1000_configure(adapter); + + err = e1000_request_irq(adapter); + if (err) + goto err_req_irq; + + /* From here on the code is the same as e1000_up() */ + clear_bit(__E1000_DOWN, &adapter->flags); + + napi_enable(&adapter->napi); + + e1000_irq_enable(adapter); + + netif_start_queue(netdev); + + /* fire a link status change interrupt to start the watchdog */ + ew32(ICS, E1000_ICS_LSC); + + return E1000_SUCCESS; + +err_req_irq: + e1000_power_down_phy(adapter); + e1000_free_all_rx_resources(adapter); +err_setup_rx: + e1000_free_all_tx_resources(adapter); +err_setup_tx: + e1000_reset(adapter); + + return err; +} + +/** + * e1000_close - Disables a network interface + * @netdev: network interface device structure + * + * Returns 0, this is not allowed to fail + * + * The close entry point is called when an interface is de-activated + * by the OS. The hardware is still under the drivers control, but + * needs to be disabled. A global MAC reset is issued to stop the + * hardware, and all transmit and receive resources are freed. + **/ + +static int e1000_close(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); + e1000_down(adapter); + e1000_power_down_phy(adapter); + e1000_free_irq(adapter); + + e1000_free_all_tx_resources(adapter); + e1000_free_all_rx_resources(adapter); + + /* kill manageability vlan ID if supported, but not if a vlan with + * the same ID is registered on the host OS (let 8021q kill it) */ + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + !(adapter->vlgrp && + vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) { + e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); + } + + return 0; +} + +/** + * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary + * @adapter: address of board private structure + * @start: address of beginning of memory + * @len: length of memory + **/ +static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start, + unsigned long len) +{ + struct e1000_hw *hw = &adapter->hw; + unsigned long begin = (unsigned long)start; + unsigned long end = begin + len; + + /* First rev 82545 and 82546 need to not allow any memory + * write location to cross 64k boundary due to errata 23 */ + if (hw->mac_type == e1000_82545 || + hw->mac_type == e1000_82546) { + return ((begin ^ (end - 1)) >> 16) != 0 ? false : true; + } + + return true; +} + +/** + * e1000_setup_tx_resources - allocate Tx resources (Descriptors) + * @adapter: board private structure + * @txdr: tx descriptor ring (for a specific queue) to setup + * + * Return 0 on success, negative on failure + **/ + +static int e1000_setup_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *txdr) +{ + struct pci_dev *pdev = adapter->pdev; + int size; + + size = sizeof(struct e1000_buffer) * txdr->count; + txdr->buffer_info = vmalloc(size); + if (!txdr->buffer_info) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the transmit descriptor ring\n"); + return -ENOMEM; + } + memset(txdr->buffer_info, 0, size); + + /* round up to nearest 4K */ + + txdr->size = txdr->count * sizeof(struct e1000_tx_desc); + txdr->size = ALIGN(txdr->size, 4096); + + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + if (!txdr->desc) { +setup_tx_desc_die: + vfree(txdr->buffer_info); + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the transmit descriptor ring\n"); + return -ENOMEM; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { + void *olddesc = txdr->desc; + dma_addr_t olddma = txdr->dma; + DPRINTK(TX_ERR, ERR, "txdr align check failed: %u bytes " + "at %p\n", txdr->size, txdr->desc); + /* Try again, without freeing the previous */ + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + /* Failed allocation, critical failure */ + if (!txdr->desc) { + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + goto setup_tx_desc_die; + } + + if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { + /* give up */ + pci_free_consistent(pdev, txdr->size, txdr->desc, + txdr->dma); + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate aligned memory " + "for the transmit descriptor ring\n"); + vfree(txdr->buffer_info); + return -ENOMEM; + } else { + /* Free old allocation, new allocation was successful */ + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + } + } + memset(txdr->desc, 0, txdr->size); + + txdr->next_to_use = 0; + txdr->next_to_clean = 0; + + return 0; +} + +/** + * e1000_setup_all_tx_resources - wrapper to allocate Tx resources + * (Descriptors) for all queues + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ + +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_tx_queues; i++) { + err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]); + if (err) { + DPRINTK(PROBE, ERR, + "Allocation for Tx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_tx_resources(adapter, + &adapter->tx_ring[i]); + break; + } + } + + return err; +} + +/** + * e1000_configure_tx - Configure 8254x Transmit Unit after Reset + * @adapter: board private structure + * + * Configure the Tx unit of the MAC after a reset. + **/ + +static void e1000_configure_tx(struct e1000_adapter *adapter) +{ + u64 tdba; + struct e1000_hw *hw = &adapter->hw; + u32 tdlen, tctl, tipg; + u32 ipgr1, ipgr2; + + /* Setup the HW Tx Head and Tail descriptor pointers */ + + switch (adapter->num_tx_queues) { + case 1: + default: + tdba = adapter->tx_ring[0].dma; + tdlen = adapter->tx_ring[0].count * + sizeof(struct e1000_tx_desc); + ew32(TDLEN, tdlen); + ew32(TDBAH, (tdba >> 32)); + ew32(TDBAL, (tdba & 0x00000000ffffffffULL)); + ew32(TDT, 0); + ew32(TDH, 0); + adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH); + adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT); + break; + } + + /* Set the default values for the Tx Inter Packet Gap timer */ + if ((hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes)) + tipg = DEFAULT_82543_TIPG_IPGT_FIBER; + else + tipg = DEFAULT_82543_TIPG_IPGT_COPPER; + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + tipg = DEFAULT_82542_TIPG_IPGT; + ipgr1 = DEFAULT_82542_TIPG_IPGR1; + ipgr2 = DEFAULT_82542_TIPG_IPGR2; + break; + default: + ipgr1 = DEFAULT_82543_TIPG_IPGR1; + ipgr2 = DEFAULT_82543_TIPG_IPGR2; + break; + } + tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT; + tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT; + ew32(TIPG, tipg); + + /* Set the Tx Interrupt Delay register */ + + ew32(TIDV, adapter->tx_int_delay); + if (hw->mac_type >= e1000_82540) + ew32(TADV, adapter->tx_abs_int_delay); + + /* Program the Transmit Control Register */ + + tctl = er32(TCTL); + tctl &= ~E1000_TCTL_CT; + tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | + (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); + + e1000_config_collision_dist(hw); + + /* Setup Transmit Descriptor Settings for eop descriptor */ + adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS; + + /* only set IDE if we are delaying interrupts using the timers */ + if (adapter->tx_int_delay) + adapter->txd_cmd |= E1000_TXD_CMD_IDE; + + if (hw->mac_type < e1000_82543) + adapter->txd_cmd |= E1000_TXD_CMD_RPS; + else + adapter->txd_cmd |= E1000_TXD_CMD_RS; + + /* Cache if we're 82544 running in PCI-X because we'll + * need this to apply a workaround later in the send path. */ + if (hw->mac_type == e1000_82544 && + hw->bus_type == e1000_bus_type_pcix) + adapter->pcix_82544 = 1; + + ew32(TCTL, tctl); + +} + +/** + * e1000_setup_rx_resources - allocate Rx resources (Descriptors) + * @adapter: board private structure + * @rxdr: rx descriptor ring (for a specific queue) to setup + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_setup_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rxdr) +{ + struct pci_dev *pdev = adapter->pdev; + int size, desc_len; + + size = sizeof(struct e1000_buffer) * rxdr->count; + rxdr->buffer_info = vmalloc(size); + if (!rxdr->buffer_info) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the receive descriptor ring\n"); + return -ENOMEM; + } + memset(rxdr->buffer_info, 0, size); + + desc_len = sizeof(struct e1000_rx_desc); + + /* Round up to nearest 4K */ + + rxdr->size = rxdr->count * desc_len; + rxdr->size = ALIGN(rxdr->size, 4096); + + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + + if (!rxdr->desc) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the receive descriptor ring\n"); +setup_rx_desc_die: + vfree(rxdr->buffer_info); + return -ENOMEM; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { + void *olddesc = rxdr->desc; + dma_addr_t olddma = rxdr->dma; + DPRINTK(RX_ERR, ERR, "rxdr align check failed: %u bytes " + "at %p\n", rxdr->size, rxdr->desc); + /* Try again, without freeing the previous */ + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + /* Failed allocation, critical failure */ + if (!rxdr->desc) { + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate memory " + "for the receive descriptor ring\n"); + goto setup_rx_desc_die; + } + + if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { + /* give up */ + pci_free_consistent(pdev, rxdr->size, rxdr->desc, + rxdr->dma); + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate aligned memory " + "for the receive descriptor ring\n"); + goto setup_rx_desc_die; + } else { + /* Free old allocation, new allocation was successful */ + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + } + } + memset(rxdr->desc, 0, rxdr->size); + + rxdr->next_to_clean = 0; + rxdr->next_to_use = 0; + rxdr->rx_skb_top = NULL; + + return 0; +} + +/** + * e1000_setup_all_rx_resources - wrapper to allocate Rx resources + * (Descriptors) for all queues + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ + +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_rx_queues; i++) { + err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]); + if (err) { + DPRINTK(PROBE, ERR, + "Allocation for Rx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_rx_resources(adapter, + &adapter->rx_ring[i]); + break; + } + } + + return err; +} + +/** + * e1000_setup_rctl - configure the receive control registers + * @adapter: Board private structure + **/ +static void e1000_setup_rctl(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + + rctl = er32(RCTL); + + rctl &= ~(3 << E1000_RCTL_MO_SHIFT); + + rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | + E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); + + if (hw->tbi_compatibility_on == 1) + rctl |= E1000_RCTL_SBP; + else + rctl &= ~E1000_RCTL_SBP; + + if (adapter->netdev->mtu <= ETH_DATA_LEN) + rctl &= ~E1000_RCTL_LPE; + else + rctl |= E1000_RCTL_LPE; + + /* Setup buffer sizes */ + rctl &= ~E1000_RCTL_SZ_4096; + rctl |= E1000_RCTL_BSEX; + switch (adapter->rx_buffer_len) { + case E1000_RXBUFFER_2048: + default: + rctl |= E1000_RCTL_SZ_2048; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_4096: + rctl |= E1000_RCTL_SZ_4096; + break; + case E1000_RXBUFFER_8192: + rctl |= E1000_RCTL_SZ_8192; + break; + case E1000_RXBUFFER_16384: + rctl |= E1000_RCTL_SZ_16384; + break; + } + + ew32(RCTL, rctl); +} + +/** + * e1000_configure_rx - Configure 8254x Receive Unit after Reset + * @adapter: board private structure + * + * Configure the Rx unit of the MAC after a reset. + **/ + +static void e1000_configure_rx(struct e1000_adapter *adapter) +{ + u64 rdba; + struct e1000_hw *hw = &adapter->hw; + u32 rdlen, rctl, rxcsum; + + if (adapter->netdev->mtu > ETH_DATA_LEN) { + rdlen = adapter->rx_ring[0].count * + sizeof(struct e1000_rx_desc); + adapter->clean_rx = e1000_clean_jumbo_rx_irq; + adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers; + } else { + rdlen = adapter->rx_ring[0].count * + sizeof(struct e1000_rx_desc); + adapter->clean_rx = e1000_clean_rx_irq; + adapter->alloc_rx_buf = e1000_alloc_rx_buffers; + } + + /* disable receives while setting up the descriptors */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + + /* set the Receive Delay Timer Register */ + ew32(RDTR, adapter->rx_int_delay); + + if (hw->mac_type >= e1000_82540) { + ew32(RADV, adapter->rx_abs_int_delay); + if (adapter->itr_setting != 0) + ew32(ITR, 1000000000 / (adapter->itr * 256)); + } + + /* Setup the HW Rx Head and Tail Descriptor Pointers and + * the Base and Length of the Rx Descriptor Ring */ + switch (adapter->num_rx_queues) { + case 1: + default: + rdba = adapter->rx_ring[0].dma; + ew32(RDLEN, rdlen); + ew32(RDBAH, (rdba >> 32)); + ew32(RDBAL, (rdba & 0x00000000ffffffffULL)); + ew32(RDT, 0); + ew32(RDH, 0); + adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH); + adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT); + break; + } + + /* Enable 82543 Receive Checksum Offload for TCP and UDP */ + if (hw->mac_type >= e1000_82543) { + rxcsum = er32(RXCSUM); + if (adapter->rx_csum) + rxcsum |= E1000_RXCSUM_TUOFL; + else + /* don't need to clear IPPCSE as it defaults to 0 */ + rxcsum &= ~E1000_RXCSUM_TUOFL; + ew32(RXCSUM, rxcsum); + } + + /* Enable Receives */ + ew32(RCTL, rctl); +} + +/** + * e1000_free_tx_resources - Free Tx Resources per Queue + * @adapter: board private structure + * @tx_ring: Tx descriptor ring for a specific queue + * + * Free all transmit software resources + **/ + +static void e1000_free_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct pci_dev *pdev = adapter->pdev; + + e1000_clean_tx_ring(adapter, tx_ring); + + vfree(tx_ring->buffer_info); + tx_ring->buffer_info = NULL; + + pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma); + + tx_ring->desc = NULL; +} + +/** + * e1000_free_all_tx_resources - Free Tx Resources for All Queues + * @adapter: board private structure + * + * Free all transmit software resources + **/ + +void e1000_free_all_tx_resources(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + e1000_free_tx_resources(adapter, &adapter->tx_ring[i]); +} + +static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter, + struct e1000_buffer *buffer_info) +{ + if (adapter->ecdev) + return; + + if (buffer_info->dma) { + if (buffer_info->mapped_as_page) + pci_unmap_page(adapter->pdev, buffer_info->dma, + buffer_info->length, PCI_DMA_TODEVICE); + else + pci_unmap_single(adapter->pdev, buffer_info->dma, + buffer_info->length, + PCI_DMA_TODEVICE); + buffer_info->dma = 0; + } + if (buffer_info->skb) { + dev_kfree_skb_any(buffer_info->skb); + buffer_info->skb = NULL; + } + buffer_info->time_stamp = 0; + /* buffer_info must be completely set up in the transmit path */ +} + +/** + * e1000_clean_tx_ring - Free Tx Buffers + * @adapter: board private structure + * @tx_ring: ring to be cleaned + **/ + +static void e1000_clean_tx_ring(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_buffer *buffer_info; + unsigned long size; + unsigned int i; + + /* Free all the Tx ring sk_buffs */ + + for (i = 0; i < tx_ring->count; i++) { + buffer_info = &tx_ring->buffer_info[i]; + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + } + + size = sizeof(struct e1000_buffer) * tx_ring->count; + memset(tx_ring->buffer_info, 0, size); + + /* Zero out the descriptor ring */ + + memset(tx_ring->desc, 0, tx_ring->size); + + tx_ring->next_to_use = 0; + tx_ring->next_to_clean = 0; + tx_ring->last_tx_tso = 0; + + writel(0, hw->hw_addr + tx_ring->tdh); + writel(0, hw->hw_addr + tx_ring->tdt); +} + +/** + * e1000_clean_all_tx_rings - Free Tx Buffers for all queues + * @adapter: board private structure + **/ + +static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]); +} + +/** + * e1000_free_rx_resources - Free Rx Resources + * @adapter: board private structure + * @rx_ring: ring to clean the resources from + * + * Free all receive software resources + **/ + +static void e1000_free_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring) +{ + struct pci_dev *pdev = adapter->pdev; + + e1000_clean_rx_ring(adapter, rx_ring); + + vfree(rx_ring->buffer_info); + rx_ring->buffer_info = NULL; + + pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma); + + rx_ring->desc = NULL; +} + +/** + * e1000_free_all_rx_resources - Free Rx Resources for All Queues + * @adapter: board private structure + * + * Free all receive software resources + **/ + +void e1000_free_all_rx_resources(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + e1000_free_rx_resources(adapter, &adapter->rx_ring[i]); +} + +/** + * e1000_clean_rx_ring - Free Rx Buffers per Queue + * @adapter: board private structure + * @rx_ring: ring to free buffers from + **/ + +static void e1000_clean_rx_ring(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_buffer *buffer_info; + struct pci_dev *pdev = adapter->pdev; + unsigned long size; + unsigned int i; + + /* Free all the Rx ring sk_buffs */ + for (i = 0; i < rx_ring->count; i++) { + buffer_info = &rx_ring->buffer_info[i]; + if (buffer_info->dma && + adapter->clean_rx == e1000_clean_rx_irq) { + pci_unmap_single(pdev, buffer_info->dma, + buffer_info->length, + PCI_DMA_FROMDEVICE); + } else if (buffer_info->dma && + adapter->clean_rx == e1000_clean_jumbo_rx_irq) { + pci_unmap_page(pdev, buffer_info->dma, + buffer_info->length, + PCI_DMA_FROMDEVICE); + } + + buffer_info->dma = 0; + if (buffer_info->page) { + put_page(buffer_info->page); + buffer_info->page = NULL; + } + if (buffer_info->skb) { + dev_kfree_skb(buffer_info->skb); + buffer_info->skb = NULL; + } + } + + /* there also may be some cached data from a chained receive */ + if (rx_ring->rx_skb_top) { + dev_kfree_skb(rx_ring->rx_skb_top); + rx_ring->rx_skb_top = NULL; + } + + size = sizeof(struct e1000_buffer) * rx_ring->count; + memset(rx_ring->buffer_info, 0, size); + + /* Zero out the descriptor ring */ + memset(rx_ring->desc, 0, rx_ring->size); + + rx_ring->next_to_clean = 0; + rx_ring->next_to_use = 0; + + writel(0, hw->hw_addr + rx_ring->rdh); + writel(0, hw->hw_addr + rx_ring->rdt); +} + +/** + * e1000_clean_all_rx_rings - Free Rx Buffers for all queues + * @adapter: board private structure + **/ + +static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]); +} + +/* The 82542 2.0 (revision 2) needs to have the receive unit in reset + * and memory write and invalidate disabled for certain operations + */ +static void e1000_enter_82542_rst(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl; + + e1000_pci_clear_mwi(hw); + + rctl = er32(RCTL); + rctl |= E1000_RCTL_RST; + ew32(RCTL, rctl); + E1000_WRITE_FLUSH(); + mdelay(5); + + if (!adapter->ecdev && netif_running(netdev)) + e1000_clean_all_rx_rings(adapter); +} + +static void e1000_leave_82542_rst(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl; + + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_RST; + ew32(RCTL, rctl); + E1000_WRITE_FLUSH(); + mdelay(5); + + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + + if (!adapter->netdev && netif_running(netdev)) { + /* No need to loop, because 82542 supports only 1 queue */ + struct e1000_rx_ring *ring = &adapter->rx_ring[0]; + e1000_configure_rx(adapter); + if (adapter->ecdev) { + /* fill rx ring completely! */ + adapter->alloc_rx_buf(adapter, ring, ring->count); + } else { + /* this one leaves the last ring element unallocated! */ + adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring)); + } + + } +} + +/** + * e1000_set_mac - Change the Ethernet Address of the NIC + * @netdev: network interface device structure + * @p: pointer to an address structure + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_set_mac(struct net_device *netdev, void *p) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + /* 82542 2.0 needs to be in reset to write receive address registers */ + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_enter_82542_rst(adapter); + + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); + memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len); + + e1000_rar_set(hw, hw->mac_addr, 0); + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_leave_82542_rst(adapter); + + return 0; +} + +/** + * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set + * @netdev: network interface device structure + * + * The set_rx_mode entry point is called whenever the unicast or multicast + * address lists or the network interface flags are updated. This routine is + * responsible for configuring the hardware for proper unicast, multicast, + * promiscuous mode, and all-multi behavior. + **/ + +static void e1000_set_rx_mode(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct netdev_hw_addr *ha; + bool use_uc = false; + struct dev_addr_list *mc_ptr; + u32 rctl; + u32 hash_value; + int i, rar_entries = E1000_RAR_ENTRIES; + int mta_reg_count = E1000_NUM_MTA_REGISTERS; + u32 *mcarray = kcalloc(mta_reg_count, sizeof(u32), GFP_ATOMIC); + + if (!mcarray) { + DPRINTK(PROBE, ERR, "memory allocation failed\n"); + return; + } + + /* Check for Promiscuous and All Multicast modes */ + + rctl = er32(RCTL); + + if (netdev->flags & IFF_PROMISC) { + rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); + rctl &= ~E1000_RCTL_VFE; + } else { + if (netdev->flags & IFF_ALLMULTI) + rctl |= E1000_RCTL_MPE; + else + rctl &= ~E1000_RCTL_MPE; + /* Enable VLAN filter if there is a VLAN */ + if (adapter->vlgrp) + rctl |= E1000_RCTL_VFE; + } + + if (netdev->uc.count > rar_entries - 1) { + rctl |= E1000_RCTL_UPE; + } else if (!(netdev->flags & IFF_PROMISC)) { + rctl &= ~E1000_RCTL_UPE; + use_uc = true; + } + + ew32(RCTL, rctl); + + /* 82542 2.0 needs to be in reset to write receive address registers */ + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_enter_82542_rst(adapter); + + /* load the first 14 addresses into the exact filters 1-14. Unicast + * addresses take precedence to avoid disabling unicast filtering + * when possible. + * + * RAR 0 is used for the station MAC adddress + * if there are not 14 addresses, go ahead and clear the filters + */ + i = 1; + if (use_uc) + list_for_each_entry(ha, &netdev->uc.list, list) { + if (i == rar_entries) + break; + e1000_rar_set(hw, ha->addr, i++); + } + + WARN_ON(i == rar_entries); + + mc_ptr = netdev->mc_list; + + for (; i < rar_entries; i++) { + if (mc_ptr) { + e1000_rar_set(hw, mc_ptr->da_addr, i); + mc_ptr = mc_ptr->next; + } else { + E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0); + E1000_WRITE_FLUSH(); + } + } + + /* load any remaining addresses into the hash table */ + + for (; mc_ptr; mc_ptr = mc_ptr->next) { + u32 hash_reg, hash_bit, mta; + hash_value = e1000_hash_mc_addr(hw, mc_ptr->da_addr); + hash_reg = (hash_value >> 5) & 0x7F; + hash_bit = hash_value & 0x1F; + mta = (1 << hash_bit); + mcarray[hash_reg] |= mta; + } + + /* write the hash table completely, write from bottom to avoid + * both stupid write combining chipsets, and flushing each write */ + for (i = mta_reg_count - 1; i >= 0 ; i--) { + /* + * If we are on an 82544 has an errata where writing odd + * offsets overwrites the previous even offset, but writing + * backwards over the range solves the issue by always + * writing the odd offset first + */ + E1000_WRITE_REG_ARRAY(hw, MTA, i, mcarray[i]); + } + E1000_WRITE_FLUSH(); + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_leave_82542_rst(adapter); + + kfree(mcarray); +} + +/* Need to wait a few seconds after link up to get diagnostic information from + * the phy */ + +static void e1000_update_phy_info(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + e1000_phy_get_info(hw, &adapter->phy_info); +} + +/** + * e1000_82547_tx_fifo_stall - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ + +static void e1000_82547_tx_fifo_stall(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 tctl; + + if (atomic_read(&adapter->tx_fifo_stall)) { + if ((er32(TDT) == er32(TDH)) && + (er32(TDFT) == er32(TDFH)) && + (er32(TDFTS) == er32(TDFHS))) { + tctl = er32(TCTL); + ew32(TCTL, tctl & ~E1000_TCTL_EN); + ew32(TDFT, adapter->tx_head_addr); + ew32(TDFH, adapter->tx_head_addr); + ew32(TDFTS, adapter->tx_head_addr); + ew32(TDFHS, adapter->tx_head_addr); + ew32(TCTL, tctl); + E1000_WRITE_FLUSH(); + + adapter->tx_fifo_head = 0; + atomic_set(&adapter->tx_fifo_stall, 0); + if (!adapter->ecdev) netif_wake_queue(netdev); + } else if (!test_bit(__E1000_DOWN, &adapter->flags)) { + if (!adapter->ecdev) + mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1); + } + } +} + +static bool e1000_has_link(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + bool link_active = false; + + /* get_link_status is set on LSC (link status) interrupt or + * rx sequence error interrupt. get_link_status will stay + * false until the e1000_check_for_link establishes link + * for copper adapters ONLY + */ + switch (hw->media_type) { + case e1000_media_type_copper: + if (hw->get_link_status) { + e1000_check_for_link(hw); + link_active = !hw->get_link_status; + } else { + link_active = true; + } + break; + case e1000_media_type_fiber: + e1000_check_for_link(hw); + link_active = !!(er32(STATUS) & E1000_STATUS_LU); + break; + case e1000_media_type_internal_serdes: + e1000_check_for_link(hw); + link_active = hw->serdes_has_link; + break; + default: + break; + } + + return link_active; +} + +/** + * e1000_watchdog - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ +static void e1000_watchdog(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct e1000_tx_ring *txdr = adapter->tx_ring; + u32 link, tctl; + + link = e1000_has_link(adapter); + if (!adapter->ecdev && (netif_carrier_ok(netdev)) && link) + goto link_up; + + if (link) { + if ((adapter->ecdev && !ecdev_get_link(adapter->ecdev)) + || (!adapter->ecdev && !netif_carrier_ok(netdev))) { + u32 ctrl; + bool txb2b = true; + /* update snapshot of PHY registers on LSC */ + e1000_get_speed_and_duplex(hw, + &adapter->link_speed, + &adapter->link_duplex); + + ctrl = er32(CTRL); + printk(KERN_INFO "e1000: %s NIC Link is Up %d Mbps %s, " + "Flow Control: %s\n", + netdev->name, + adapter->link_speed, + adapter->link_duplex == FULL_DUPLEX ? + "Full Duplex" : "Half Duplex", + ((ctrl & E1000_CTRL_TFCE) && (ctrl & + E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl & + E1000_CTRL_RFCE) ? "RX" : ((ctrl & + E1000_CTRL_TFCE) ? "TX" : "None" ))); + + /* tweak tx_queue_len according to speed/duplex + * and adjust the timeout factor */ + netdev->tx_queue_len = adapter->tx_queue_len; + adapter->tx_timeout_factor = 1; + switch (adapter->link_speed) { + case SPEED_10: + txb2b = false; + netdev->tx_queue_len = 10; + adapter->tx_timeout_factor = 16; + break; + case SPEED_100: + txb2b = false; + netdev->tx_queue_len = 100; + /* maybe add some timeout factor ? */ + break; + } + + /* enable transmits in the hardware */ + tctl = er32(TCTL); + tctl |= E1000_TCTL_EN; + ew32(TCTL, tctl); + + if (adapter->ecdev) { + ecdev_set_link(adapter->ecdev, 1); + } else { + netif_carrier_on(netdev); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->phy_info_timer, + round_jiffies(jiffies + 2 * HZ)); + } + adapter->smartspeed = 0; + } + } else { + if ((adapter->ecdev && ecdev_get_link(adapter->ecdev)) + || (!adapter->ecdev && netif_carrier_ok(netdev))) { + adapter->link_speed = 0; + adapter->link_duplex = 0; + printk(KERN_INFO "e1000: %s NIC Link is Down\n", + netdev->name); + if (adapter->ecdev) { + ecdev_set_link(adapter->ecdev, 0); + } else { + netif_carrier_off(netdev); + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->phy_info_timer, + round_jiffies(jiffies + 2 * HZ)); + } + } + + e1000_smartspeed(adapter); + } + +link_up: + e1000_update_stats(adapter); + + hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old; + adapter->tpt_old = adapter->stats.tpt; + hw->collision_delta = adapter->stats.colc - adapter->colc_old; + adapter->colc_old = adapter->stats.colc; + + adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old; + adapter->gorcl_old = adapter->stats.gorcl; + adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old; + adapter->gotcl_old = adapter->stats.gotcl; + + e1000_update_adaptive(hw); + + if (!adapter->ecdev && !netif_carrier_ok(netdev)) { + if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) { + /* We've lost link, so the controller stops DMA, + * but we've got queued Tx work that's never going + * to get done, so reset controller to flush Tx. + * (Do the reset outside of interrupt context). */ + adapter->tx_timeout_count++; + schedule_work(&adapter->reset_task); + /* return immediately since reset is imminent */ + return; + } + } + + /* Cause software interrupt to ensure rx ring is cleaned */ + ew32(ICS, E1000_ICS_RXDMT0); + + /* Force detection of hung controller every watchdog period */ + if (!adapter->ecdev) adapter->detect_tx_hung = true; + + /* Reset the timer */ + if (!adapter->ecdev) { + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, + round_jiffies(jiffies + 2 * HZ)); + } +} + +enum latency_range { + lowest_latency = 0, + low_latency = 1, + bulk_latency = 2, + latency_invalid = 255 +}; + +/** + * e1000_update_itr - update the dynamic ITR value based on statistics + * @adapter: pointer to adapter + * @itr_setting: current adapter->itr + * @packets: the number of packets during this measurement interval + * @bytes: the number of bytes during this measurement interval + * + * Stores a new ITR value based on packets and byte + * counts during the last interrupt. The advantage of per interrupt + * computation is faster updates and more accurate ITR for the current + * traffic pattern. Constants in this function were computed + * based on theoretical maximum wire speed and thresholds were set based + * on testing data as well as attempting to minimize response time + * while increasing bulk throughput. + * this functionality is controlled by the InterruptThrottleRate module + * parameter (see e1000_param.c) + **/ +static unsigned int e1000_update_itr(struct e1000_adapter *adapter, + u16 itr_setting, int packets, int bytes) +{ + unsigned int retval = itr_setting; + struct e1000_hw *hw = &adapter->hw; + + if (unlikely(hw->mac_type < e1000_82540)) + goto update_itr_done; + + if (packets == 0) + goto update_itr_done; + + switch (itr_setting) { + case lowest_latency: + /* jumbo frames get bulk treatment*/ + if (bytes/packets > 8000) + retval = bulk_latency; + else if ((packets < 5) && (bytes > 512)) + retval = low_latency; + break; + case low_latency: /* 50 usec aka 20000 ints/s */ + if (bytes > 10000) { + /* jumbo frames need bulk latency setting */ + if (bytes/packets > 8000) + retval = bulk_latency; + else if ((packets < 10) || ((bytes/packets) > 1200)) + retval = bulk_latency; + else if ((packets > 35)) + retval = lowest_latency; + } else if (bytes/packets > 2000) + retval = bulk_latency; + else if (packets <= 2 && bytes < 512) + retval = lowest_latency; + break; + case bulk_latency: /* 250 usec aka 4000 ints/s */ + if (bytes > 25000) { + if (packets > 35) + retval = low_latency; + } else if (bytes < 6000) { + retval = low_latency; + } + break; + } + +update_itr_done: + return retval; +} + +static void e1000_set_itr(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 current_itr; + u32 new_itr = adapter->itr; + + if (unlikely(hw->mac_type < e1000_82540)) + return; + + /* for non-gigabit speeds, just fix the interrupt rate at 4000 */ + if (unlikely(adapter->link_speed != SPEED_1000)) { + current_itr = 0; + new_itr = 4000; + goto set_itr_now; + } + + adapter->tx_itr = e1000_update_itr(adapter, + adapter->tx_itr, + adapter->total_tx_packets, + adapter->total_tx_bytes); + /* conservative mode (itr 3) eliminates the lowest_latency setting */ + if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency) + adapter->tx_itr = low_latency; + + adapter->rx_itr = e1000_update_itr(adapter, + adapter->rx_itr, + adapter->total_rx_packets, + adapter->total_rx_bytes); + /* conservative mode (itr 3) eliminates the lowest_latency setting */ + if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency) + adapter->rx_itr = low_latency; + + current_itr = max(adapter->rx_itr, adapter->tx_itr); + + switch (current_itr) { + /* counts and packets in update_itr are dependent on these numbers */ + case lowest_latency: + new_itr = 70000; + break; + case low_latency: + new_itr = 20000; /* aka hwitr = ~200 */ + break; + case bulk_latency: + new_itr = 4000; + break; + default: + break; + } + +set_itr_now: + if (new_itr != adapter->itr) { + /* this attempts to bias the interrupt rate towards Bulk + * by adding intermediate steps when interrupt rate is + * increasing */ + new_itr = new_itr > adapter->itr ? + min(adapter->itr + (new_itr >> 2), new_itr) : + new_itr; + adapter->itr = new_itr; + ew32(ITR, 1000000000 / (new_itr * 256)); + } + + return; +} + +#define E1000_TX_FLAGS_CSUM 0x00000001 +#define E1000_TX_FLAGS_VLAN 0x00000002 +#define E1000_TX_FLAGS_TSO 0x00000004 +#define E1000_TX_FLAGS_IPV4 0x00000008 +#define E1000_TX_FLAGS_VLAN_MASK 0xffff0000 +#define E1000_TX_FLAGS_VLAN_SHIFT 16 + +static int e1000_tso(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, struct sk_buff *skb) +{ + struct e1000_context_desc *context_desc; + struct e1000_buffer *buffer_info; + unsigned int i; + u32 cmd_length = 0; + u16 ipcse = 0, tucse, mss; + u8 ipcss, ipcso, tucss, tucso, hdr_len; + int err; + + if (skb_is_gso(skb)) { + if (skb_header_cloned(skb)) { + err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + if (err) + return err; + } + + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + mss = skb_shinfo(skb)->gso_size; + if (skb->protocol == htons(ETH_P_IP)) { + struct iphdr *iph = ip_hdr(skb); + iph->tot_len = 0; + iph->check = 0; + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, + 0); + cmd_length = E1000_TXD_CMD_IP; + ipcse = skb_transport_offset(skb) - 1; + } else if (skb->protocol == htons(ETH_P_IPV6)) { + ipv6_hdr(skb)->payload_len = 0; + tcp_hdr(skb)->check = + ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, + 0, IPPROTO_TCP, 0); + ipcse = 0; + } + ipcss = skb_network_offset(skb); + ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data; + tucss = skb_transport_offset(skb); + tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data; + tucse = 0; + + cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE | + E1000_TXD_CMD_TCP | (skb->len - (hdr_len))); + + i = tx_ring->next_to_use; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; + + context_desc->lower_setup.ip_fields.ipcss = ipcss; + context_desc->lower_setup.ip_fields.ipcso = ipcso; + context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse); + context_desc->upper_setup.tcp_fields.tucss = tucss; + context_desc->upper_setup.tcp_fields.tucso = tucso; + context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse); + context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss); + context_desc->tcp_seg_setup.fields.hdr_len = hdr_len; + context_desc->cmd_and_length = cpu_to_le32(cmd_length); + + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + if (++i == tx_ring->count) i = 0; + tx_ring->next_to_use = i; + + return true; + } + return false; +} + +static bool e1000_tx_csum(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, struct sk_buff *skb) +{ + struct e1000_context_desc *context_desc; + struct e1000_buffer *buffer_info; + unsigned int i; + u8 css; + u32 cmd_len = E1000_TXD_CMD_DEXT; + + if (skb->ip_summed != CHECKSUM_PARTIAL) + return false; + + switch (skb->protocol) { + case cpu_to_be16(ETH_P_IP): + if (ip_hdr(skb)->protocol == IPPROTO_TCP) + cmd_len |= E1000_TXD_CMD_TCP; + break; + case cpu_to_be16(ETH_P_IPV6): + /* XXX not handling all IPV6 headers */ + if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) + cmd_len |= E1000_TXD_CMD_TCP; + break; + default: + if (unlikely(net_ratelimit())) + DPRINTK(DRV, WARNING, + "checksum_partial proto=%x!\n", skb->protocol); + break; + } + + css = skb_transport_offset(skb); + + i = tx_ring->next_to_use; + buffer_info = &tx_ring->buffer_info[i]; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + + context_desc->lower_setup.ip_config = 0; + context_desc->upper_setup.tcp_fields.tucss = css; + context_desc->upper_setup.tcp_fields.tucso = + css + skb->csum_offset; + context_desc->upper_setup.tcp_fields.tucse = 0; + context_desc->tcp_seg_setup.data = 0; + context_desc->cmd_and_length = cpu_to_le32(cmd_len); + + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + if (unlikely(++i == tx_ring->count)) i = 0; + tx_ring->next_to_use = i; + + return true; +} + +#define E1000_MAX_TXD_PWR 12 +#define E1000_MAX_DATA_PER_TXD (1<hw; + struct pci_dev *pdev = adapter->pdev; + struct e1000_buffer *buffer_info; + unsigned int len = skb_headlen(skb); + unsigned int offset = 0, size, count = 0, i; + unsigned int f; + + i = tx_ring->next_to_use; + + while (len) { + buffer_info = &tx_ring->buffer_info[i]; + size = min(len, max_per_txd); + /* Workaround for Controller erratum -- + * descriptor for non-tso packet in a linear SKB that follows a + * tso gets written back prematurely before the data is fully + * DMA'd to the controller */ + if (!skb->data_len && tx_ring->last_tx_tso && + !skb_is_gso(skb)) { + tx_ring->last_tx_tso = 0; + size -= 4; + } + + /* Workaround for premature desc write-backs + * in TSO mode. Append 4-byte sentinel desc */ + if (unlikely(mss && !nr_frags && size == len && size > 8)) + size -= 4; + /* work-around for errata 10 and it applies + * to all controllers in PCI-X mode + * The fix is to make sure that the first descriptor of a + * packet is smaller than 2048 - 16 - 16 (or 2016) bytes + */ + if (unlikely((hw->bus_type == e1000_bus_type_pcix) && + (size > 2015) && count == 0)) + size = 2015; + + /* Workaround for potential 82544 hang in PCI-X. Avoid + * terminating buffers within evenly-aligned dwords. */ + if (unlikely(adapter->pcix_82544 && + !((unsigned long)(skb->data + offset + size - 1) & 4) && + size > 4)) + size -= 4; + + buffer_info->length = size; + /* set time_stamp *before* dma to help avoid a possible race */ + buffer_info->time_stamp = jiffies; + buffer_info->mapped_as_page = false; + buffer_info->dma = pci_map_single(pdev, skb->data + offset, + size, PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(pdev, buffer_info->dma)) + goto dma_error; + buffer_info->next_to_watch = i; + + len -= size; + offset += size; + count++; + if (len) { + i++; + if (unlikely(i == tx_ring->count)) + i = 0; + } + } + + for (f = 0; f < nr_frags; f++) { + struct skb_frag_struct *frag; + + frag = &skb_shinfo(skb)->frags[f]; + len = frag->size; + offset = frag->page_offset; + + while (len) { + i++; + if (unlikely(i == tx_ring->count)) + i = 0; + + buffer_info = &tx_ring->buffer_info[i]; + size = min(len, max_per_txd); + /* Workaround for premature desc write-backs + * in TSO mode. Append 4-byte sentinel desc */ + if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8)) + size -= 4; + /* Workaround for potential 82544 hang in PCI-X. + * Avoid terminating buffers within evenly-aligned + * dwords. */ + if (unlikely(adapter->pcix_82544 && + !((unsigned long)(page_to_phys(frag->page) + offset + + size - 1) & 4) && + size > 4)) + size -= 4; + + buffer_info->length = size; + buffer_info->time_stamp = jiffies; + buffer_info->mapped_as_page = true; + buffer_info->dma = pci_map_page(pdev, frag->page, + offset, size, + PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(pdev, buffer_info->dma)) + goto dma_error; + buffer_info->next_to_watch = i; + + len -= size; + offset += size; + count++; + } + } + + tx_ring->buffer_info[i].skb = skb; + tx_ring->buffer_info[first].next_to_watch = i; + + return count; + +dma_error: + dev_err(&pdev->dev, "TX DMA map failed\n"); + buffer_info->dma = 0; + if (count) + count--; + + while (count--) { + if (i==0) + i += tx_ring->count; + i--; + buffer_info = &tx_ring->buffer_info[i]; + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + } + + return 0; +} + +static void e1000_tx_queue(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, int tx_flags, + int count) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_desc *tx_desc = NULL; + struct e1000_buffer *buffer_info; + u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS; + unsigned int i; + + if (likely(tx_flags & E1000_TX_FLAGS_TSO)) { + txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D | + E1000_TXD_CMD_TSE; + txd_upper |= E1000_TXD_POPTS_TXSM << 8; + + if (likely(tx_flags & E1000_TX_FLAGS_IPV4)) + txd_upper |= E1000_TXD_POPTS_IXSM << 8; + } + + if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) { + txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D; + txd_upper |= E1000_TXD_POPTS_TXSM << 8; + } + + if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) { + txd_lower |= E1000_TXD_CMD_VLE; + txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK); + } + + i = tx_ring->next_to_use; + + while (count--) { + buffer_info = &tx_ring->buffer_info[i]; + tx_desc = E1000_TX_DESC(*tx_ring, i); + tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + tx_desc->lower.data = + cpu_to_le32(txd_lower | buffer_info->length); + tx_desc->upper.data = cpu_to_le32(txd_upper); + if (unlikely(++i == tx_ring->count)) i = 0; + } + + tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + + tx_ring->next_to_use = i; + writel(i, hw->hw_addr + tx_ring->tdt); + /* we need this if more than one processor can write to our tail + * at a time, it syncronizes IO on IA64/Altix systems */ + mmiowb(); +} + +/** + * 82547 workaround to avoid controller hang in half-duplex environment. + * The workaround is to avoid queuing a large packet that would span + * the internal Tx FIFO ring boundary by notifying the stack to resend + * the packet at a later time. This gives the Tx FIFO an opportunity to + * flush all packets. When that occurs, we reset the Tx FIFO pointers + * to the beginning of the Tx FIFO. + **/ + +#define E1000_FIFO_HDR 0x10 +#define E1000_82547_PAD_LEN 0x3E0 + +static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, + struct sk_buff *skb) +{ + u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head; + u32 skb_fifo_len = skb->len + E1000_FIFO_HDR; + + skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR); + + if (adapter->link_duplex != HALF_DUPLEX) + goto no_fifo_stall_required; + + if (atomic_read(&adapter->tx_fifo_stall)) + return 1; + + if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) { + atomic_set(&adapter->tx_fifo_stall, 1); + return 1; + } + +no_fifo_stall_required: + adapter->tx_fifo_head += skb_fifo_len; + if (adapter->tx_fifo_head >= adapter->tx_fifo_size) + adapter->tx_fifo_head -= adapter->tx_fifo_size; + return 0; +} + +static int __e1000_maybe_stop_tx(struct net_device *netdev, int size) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + + netif_stop_queue(netdev); + /* Herbert's original patch had: + * smp_mb__after_netif_stop_queue(); + * but since that doesn't exist yet, just open code it. */ + smp_mb(); + + /* We need to check again in a case another CPU has just + * made room available. */ + if (likely(E1000_DESC_UNUSED(tx_ring) < size)) + return -EBUSY; + + /* A reprieve! */ + netif_start_queue(netdev); + ++adapter->restart_queue; + return 0; +} + +static int e1000_maybe_stop_tx(struct net_device *netdev, + struct e1000_tx_ring *tx_ring, int size) +{ + if (likely(E1000_DESC_UNUSED(tx_ring) >= size)) + return 0; + return __e1000_maybe_stop_tx(netdev, size); +} + +#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 ) +static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, + struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *tx_ring; + unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD; + unsigned int max_txd_pwr = E1000_MAX_TXD_PWR; + unsigned int tx_flags = 0; + unsigned int len = skb->len - skb->data_len; + unsigned int nr_frags = 0; + unsigned int mss = 0; + int count = 0; + int tso; + unsigned int f; + + /* This goes back to the question of how to logically map a tx queue + * to a flow. Right now, performance is impacted slightly negatively + * if using multiple tx queues. If the stack breaks away from a + * single qdisc implementation, we can look at this again. */ + tx_ring = adapter->tx_ring; + + if (unlikely(skb->len <= 0)) { + if (!adapter->ecdev) + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + mss = skb_shinfo(skb)->gso_size; + /* The controller does a simple calculation to + * make sure there is enough room in the FIFO before + * initiating the DMA for each buffer. The calc is: + * 4 = ceil(buffer len/mss). To make sure we don't + * overrun the FIFO, adjust the max buffer len if mss + * drops. */ + if (mss) { + u8 hdr_len; + max_per_txd = min(mss << 2, max_per_txd); + max_txd_pwr = fls(max_per_txd) - 1; + + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + if (skb->data_len && hdr_len == len) { + switch (hw->mac_type) { + unsigned int pull_size; + case e1000_82544: + /* Make sure we have room to chop off 4 bytes, + * and that the end alignment will work out to + * this hardware's requirements + * NOTE: this is a TSO only workaround + * if end byte alignment not correct move us + * into the next dword */ + if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4) + break; + /* fall through */ + pull_size = min((unsigned int)4, skb->data_len); + if (!__pskb_pull_tail(skb, pull_size)) { + DPRINTK(DRV, ERR, + "__pskb_pull_tail failed.\n"); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + len = skb->len - skb->data_len; + break; + default: + /* do nothing */ + break; + } + } + } + + /* reserve a descriptor for the offload context */ + if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL)) + count++; + count++; + + /* Controller Erratum workaround */ + if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb)) + count++; + + count += TXD_USE_COUNT(len, max_txd_pwr); + + if (adapter->pcix_82544) + count++; + + /* work-around for errata 10 and it applies to all controllers + * in PCI-X mode, so add one more descriptor to the count + */ + if (unlikely((hw->bus_type == e1000_bus_type_pcix) && + (len > 2015))) + count++; + + nr_frags = skb_shinfo(skb)->nr_frags; + for (f = 0; f < nr_frags; f++) + count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size, + max_txd_pwr); + if (adapter->pcix_82544) + count += nr_frags; + + /* need: count + 2 desc gap to keep tail from touching + * head, otherwise try next time */ + if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2))) + return NETDEV_TX_BUSY; + + if (unlikely(hw->mac_type == e1000_82547)) { + if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) { + if (!adapter->ecdev) { + netif_stop_queue(netdev); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->tx_fifo_stall_timer, + jiffies + 1); + } + return NETDEV_TX_BUSY; + } + } + + if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) { + tx_flags |= E1000_TX_FLAGS_VLAN; + tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT); + } + + first = tx_ring->next_to_use; + + tso = e1000_tso(adapter, tx_ring, skb); + if (tso < 0) { + if (!adapter->ecdev) { + dev_kfree_skb_any(skb); + } + return NETDEV_TX_OK; + } + + if (likely(tso)) { + if (likely(hw->mac_type != e1000_82544)) + tx_ring->last_tx_tso = 1; + tx_flags |= E1000_TX_FLAGS_TSO; + } else if (likely(e1000_tx_csum(adapter, tx_ring, skb))) + tx_flags |= E1000_TX_FLAGS_CSUM; + + if (likely(skb->protocol == htons(ETH_P_IP))) + tx_flags |= E1000_TX_FLAGS_IPV4; + + count = e1000_tx_map(adapter, tx_ring, skb, first, max_per_txd, + nr_frags, mss); + + if (count) { + e1000_tx_queue(adapter, tx_ring, tx_flags, count); + if (!adapter->ecdev) { + /* Make sure there is space in the ring for the next send. */ + e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2); + } + + } else { + if (!adapter->ecdev) dev_kfree_skb_any(skb); + tx_ring->buffer_info[first].time_stamp = 0; + tx_ring->next_to_use = first; + } + + return NETDEV_TX_OK; +} + +/** + * e1000_tx_timeout - Respond to a Tx Hang + * @netdev: network interface device structure + **/ + +static void e1000_tx_timeout(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + /* Do the reset outside of interrupt context */ + adapter->tx_timeout_count++; + schedule_work(&adapter->reset_task); +} + +static void e1000_reset_task(struct work_struct *work) +{ + struct e1000_adapter *adapter = + container_of(work, struct e1000_adapter, reset_task); + + e1000_reinit_locked(adapter); +} + +/** + * e1000_get_stats - Get System Network Statistics + * @netdev: network interface device structure + * + * Returns the address of the device statistics structure. + * The statistics are actually updated from the timer callback. + **/ + +static struct net_device_stats *e1000_get_stats(struct net_device *netdev) +{ + /* only return the current stats */ + return &netdev->stats; +} + +/** + * e1000_change_mtu - Change the Maximum Transfer Unit + * @netdev: network interface device structure + * @new_mtu: new value for maximum frame size + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE; + + if (adapter->ecdev) + return -EBUSY; + + if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) || + (max_frame > MAX_JUMBO_FRAME_SIZE)) { + DPRINTK(PROBE, ERR, "Invalid MTU setting\n"); + return -EINVAL; + } + + /* Adapter-specific max frame size limits. */ + switch (hw->mac_type) { + case e1000_undefined ... e1000_82542_rev2_1: + if (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)) { + DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n"); + return -EINVAL; + } + break; + default: + /* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */ + break; + } + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + /* e1000_down has a dependency on max_frame_size */ + hw->max_frame_size = max_frame; + if (netif_running(netdev)) + e1000_down(adapter); + + /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN + * means we reserve 2 more, this pushes us to allocate from the next + * larger slab size. + * i.e. RXBUFFER_2048 --> size-4096 slab + * however with the new *_jumbo_rx* routines, jumbo receives will use + * fragmented skbs */ + + if (max_frame <= E1000_RXBUFFER_2048) + adapter->rx_buffer_len = E1000_RXBUFFER_2048; + else +#if (PAGE_SIZE >= E1000_RXBUFFER_16384) + adapter->rx_buffer_len = E1000_RXBUFFER_16384; +#elif (PAGE_SIZE >= E1000_RXBUFFER_4096) + adapter->rx_buffer_len = PAGE_SIZE; +#endif + + /* adjust allocation if LPE protects us, and we aren't using SBP */ + if (!hw->tbi_compatibility_on && + ((max_frame == (ETH_FRAME_LEN + ETH_FCS_LEN)) || + (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE))) + adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; + + printk(KERN_INFO "e1000: %s changing MTU from %d to %d\n", + netdev->name, netdev->mtu, new_mtu); + netdev->mtu = new_mtu; + + if (netif_running(netdev)) + e1000_up(adapter); + else + e1000_reset(adapter); + + clear_bit(__E1000_RESETTING, &adapter->flags); + + return 0; +} + +/** + * e1000_update_stats - Update the board statistics counters + * @adapter: board private structure + **/ + +void e1000_update_stats(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct e1000_hw *hw = &adapter->hw; + struct pci_dev *pdev = adapter->pdev; + unsigned long flags = 0; + u16 phy_tmp; + +#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF + + /* + * Prevent stats update while adapter is being reset, or if the pci + * connection is down. + */ + if (adapter->link_speed == 0) + return; + if (pci_channel_offline(pdev)) + return; + + if (!adapter->ecdev) + spin_lock_irqsave(&adapter->stats_lock, flags); + + /* these counters are modified from e1000_tbi_adjust_stats, + * called from the interrupt context, so they must only + * be written while holding adapter->stats_lock + */ + + adapter->stats.crcerrs += er32(CRCERRS); + adapter->stats.gprc += er32(GPRC); + adapter->stats.gorcl += er32(GORCL); + adapter->stats.gorch += er32(GORCH); + adapter->stats.bprc += er32(BPRC); + adapter->stats.mprc += er32(MPRC); + adapter->stats.roc += er32(ROC); + + adapter->stats.prc64 += er32(PRC64); + adapter->stats.prc127 += er32(PRC127); + adapter->stats.prc255 += er32(PRC255); + adapter->stats.prc511 += er32(PRC511); + adapter->stats.prc1023 += er32(PRC1023); + adapter->stats.prc1522 += er32(PRC1522); + + adapter->stats.symerrs += er32(SYMERRS); + adapter->stats.mpc += er32(MPC); + adapter->stats.scc += er32(SCC); + adapter->stats.ecol += er32(ECOL); + adapter->stats.mcc += er32(MCC); + adapter->stats.latecol += er32(LATECOL); + adapter->stats.dc += er32(DC); + adapter->stats.sec += er32(SEC); + adapter->stats.rlec += er32(RLEC); + adapter->stats.xonrxc += er32(XONRXC); + adapter->stats.xontxc += er32(XONTXC); + adapter->stats.xoffrxc += er32(XOFFRXC); + adapter->stats.xofftxc += er32(XOFFTXC); + adapter->stats.fcruc += er32(FCRUC); + adapter->stats.gptc += er32(GPTC); + adapter->stats.gotcl += er32(GOTCL); + adapter->stats.gotch += er32(GOTCH); + adapter->stats.rnbc += er32(RNBC); + adapter->stats.ruc += er32(RUC); + adapter->stats.rfc += er32(RFC); + adapter->stats.rjc += er32(RJC); + adapter->stats.torl += er32(TORL); + adapter->stats.torh += er32(TORH); + adapter->stats.totl += er32(TOTL); + adapter->stats.toth += er32(TOTH); + adapter->stats.tpr += er32(TPR); + + adapter->stats.ptc64 += er32(PTC64); + adapter->stats.ptc127 += er32(PTC127); + adapter->stats.ptc255 += er32(PTC255); + adapter->stats.ptc511 += er32(PTC511); + adapter->stats.ptc1023 += er32(PTC1023); + adapter->stats.ptc1522 += er32(PTC1522); + + adapter->stats.mptc += er32(MPTC); + adapter->stats.bptc += er32(BPTC); + + /* used for adaptive IFS */ + + hw->tx_packet_delta = er32(TPT); + adapter->stats.tpt += hw->tx_packet_delta; + hw->collision_delta = er32(COLC); + adapter->stats.colc += hw->collision_delta; + + if (hw->mac_type >= e1000_82543) { + adapter->stats.algnerrc += er32(ALGNERRC); + adapter->stats.rxerrc += er32(RXERRC); + adapter->stats.tncrs += er32(TNCRS); + adapter->stats.cexterr += er32(CEXTERR); + adapter->stats.tsctc += er32(TSCTC); + adapter->stats.tsctfc += er32(TSCTFC); + } + + /* Fill out the OS statistics structure */ + netdev->stats.multicast = adapter->stats.mprc; + netdev->stats.collisions = adapter->stats.colc; + + /* Rx Errors */ + + /* RLEC on some newer hardware can be incorrect so build + * our own version based on RUC and ROC */ + netdev->stats.rx_errors = adapter->stats.rxerrc + + adapter->stats.crcerrs + adapter->stats.algnerrc + + adapter->stats.ruc + adapter->stats.roc + + adapter->stats.cexterr; + adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc; + netdev->stats.rx_length_errors = adapter->stats.rlerrc; + netdev->stats.rx_crc_errors = adapter->stats.crcerrs; + netdev->stats.rx_frame_errors = adapter->stats.algnerrc; + netdev->stats.rx_missed_errors = adapter->stats.mpc; + + /* Tx Errors */ + adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol; + netdev->stats.tx_errors = adapter->stats.txerrc; + netdev->stats.tx_aborted_errors = adapter->stats.ecol; + netdev->stats.tx_window_errors = adapter->stats.latecol; + netdev->stats.tx_carrier_errors = adapter->stats.tncrs; + if (hw->bad_tx_carr_stats_fd && + adapter->link_duplex == FULL_DUPLEX) { + netdev->stats.tx_carrier_errors = 0; + adapter->stats.tncrs = 0; + } + + /* Tx Dropped needs to be maintained elsewhere */ + + /* Phy Stats */ + if (hw->media_type == e1000_media_type_copper) { + if ((adapter->link_speed == SPEED_1000) && + (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) { + phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK; + adapter->phy_stats.idle_errors += phy_tmp; + } + + if ((hw->mac_type <= e1000_82546) && + (hw->phy_type == e1000_phy_m88) && + !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp)) + adapter->phy_stats.receive_errors += phy_tmp; + } + + /* Management Stats */ + if (hw->has_smbus) { + adapter->stats.mgptc += er32(MGTPTC); + adapter->stats.mgprc += er32(MGTPRC); + adapter->stats.mgpdc += er32(MGTPDC); + } + + if (!adapter->ecdev) + spin_unlock_irqrestore(&adapter->stats_lock, flags); +} + +void ec_poll(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + if (jiffies - adapter->ec_watchdog_jiffies >= 2 * HZ) { + e1000_watchdog((unsigned long) adapter); + adapter->ec_watchdog_jiffies = jiffies; + } + + e1000_intr(0, netdev); +} + +/** + * e1000_intr - Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + **/ + +static irqreturn_t e1000_intr(int irq, void *data) +{ + struct net_device *netdev = data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 icr = er32(ICR); + + if (unlikely((!icr) || test_bit(__E1000_DOWN, &adapter->flags))) + return IRQ_NONE; /* Not our interrupt */ + + if (!adapter->ecdev && unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) { + hw->get_link_status = 1; + /* guard against interrupt when we're going down */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, jiffies + 1); + } + + if (adapter->ecdev) { + int i, ec_work_done = 0; + for (i = 0; i < E1000_MAX_INTR; i++) { + if (unlikely(!adapter->clean_rx(adapter, adapter->rx_ring, + &ec_work_done, 100) & + !e1000_clean_tx_irq(adapter, adapter->tx_ring))) { + break; + } + } + } else { + /* disable interrupts, without the synchronize_irq bit */ + ew32(IMC, ~0); + E1000_WRITE_FLUSH(); + + if (likely(napi_schedule_prep(&adapter->napi))) { + adapter->total_tx_bytes = 0; + adapter->total_tx_packets = 0; + adapter->total_rx_bytes = 0; + adapter->total_rx_packets = 0; + __napi_schedule(&adapter->napi); + } else { + /* this really should not happen! if it does it is basically a + * bug, but not a hard error, so enable ints and continue */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + } + } + + return IRQ_HANDLED; +} + +/** + * e1000_clean - NAPI Rx polling callback + * @adapter: board private structure + * EtherCAT: never called + **/ +static int e1000_clean(struct napi_struct *napi, int budget) +{ + struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi); + int tx_clean_complete = 0, work_done = 0; + + tx_clean_complete = e1000_clean_tx_irq(adapter, &adapter->tx_ring[0]); + + adapter->clean_rx(adapter, &adapter->rx_ring[0], &work_done, budget); + + if (!tx_clean_complete) + work_done = budget; + + /* If budget not fully consumed, exit the polling mode */ + if (work_done < budget) { + if (likely(adapter->itr_setting & 3)) + e1000_set_itr(adapter); + napi_complete(napi); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + } + + return work_done; +} + +/** + * e1000_clean_tx_irq - Reclaim resources after transmit completes + * @adapter: board private structure + **/ +static bool e1000_clean_tx_irq(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct e1000_tx_desc *tx_desc, *eop_desc; + struct e1000_buffer *buffer_info; + unsigned int i, eop; + unsigned int count = 0; + unsigned int total_tx_bytes=0, total_tx_packets=0; + + i = tx_ring->next_to_clean; + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC(*tx_ring, eop); + + while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) && + (count < tx_ring->count)) { + bool cleaned = false; + for ( ; !cleaned; count++) { + tx_desc = E1000_TX_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; + cleaned = (i == eop); + + if (cleaned) { + struct sk_buff *skb = buffer_info->skb; + unsigned int segs, bytecount; + segs = skb_shinfo(skb)->gso_segs ?: 1; + /* multiply data chunks by size of headers */ + bytecount = ((segs - 1) * skb_headlen(skb)) + + skb->len; + total_tx_packets += segs; + total_tx_bytes += bytecount; + } + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + tx_desc->upper.data = 0; + + if (unlikely(++i == tx_ring->count)) i = 0; + } + + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC(*tx_ring, eop); + } + + tx_ring->next_to_clean = i; + +#define TX_WAKE_THRESHOLD 32 + if (!adapter->ecdev && unlikely(count && netif_carrier_ok(netdev) && + E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) { + /* Make sure that anybody stopping the queue after this + * sees the new next_to_clean. + */ + smp_mb(); + + if (netif_queue_stopped(netdev) && + !(test_bit(__E1000_DOWN, &adapter->flags))) { + netif_wake_queue(netdev); + ++adapter->restart_queue; + } + } + + if (!adapter->ecdev && adapter->detect_tx_hung) { + /* Detect a transmit hang in hardware, this serializes the + * check with the clearing of time_stamp and movement of i */ + adapter->detect_tx_hung = false; + if (tx_ring->buffer_info[eop].time_stamp && + time_after(jiffies, tx_ring->buffer_info[eop].time_stamp + + (adapter->tx_timeout_factor * HZ)) && + !(er32(STATUS) & E1000_STATUS_TXOFF)) { + + /* detected Tx unit hang */ + DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n" + " Tx Queue <%lu>\n" + " TDH <%x>\n" + " TDT <%x>\n" + " next_to_use <%x>\n" + " next_to_clean <%x>\n" + "buffer_info[next_to_clean]\n" + " time_stamp <%lx>\n" + " next_to_watch <%x>\n" + " jiffies <%lx>\n" + " next_to_watch.status <%x>\n", + (unsigned long)((tx_ring - adapter->tx_ring) / + sizeof(struct e1000_tx_ring)), + readl(hw->hw_addr + tx_ring->tdh), + readl(hw->hw_addr + tx_ring->tdt), + tx_ring->next_to_use, + tx_ring->next_to_clean, + tx_ring->buffer_info[eop].time_stamp, + eop, + jiffies, + eop_desc->upper.fields.status); + netif_stop_queue(netdev); + } + } + adapter->total_tx_bytes += total_tx_bytes; + adapter->total_tx_packets += total_tx_packets; + netdev->stats.tx_bytes += total_tx_bytes; + netdev->stats.tx_packets += total_tx_packets; + return (count < tx_ring->count); +} + +/** + * e1000_rx_checksum - Receive Checksum Offload for 82543 + * @adapter: board private structure + * @status_err: receive descriptor status and error fields + * @csum: receive descriptor csum field + * @sk_buff: socket buffer with received data + **/ + +static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, + u32 csum, struct sk_buff *skb) +{ + struct e1000_hw *hw = &adapter->hw; + u16 status = (u16)status_err; + u8 errors = (u8)(status_err >> 24); + skb->ip_summed = CHECKSUM_NONE; + + /* 82543 or newer only */ + if (unlikely(hw->mac_type < e1000_82543)) return; + /* Ignore Checksum bit is set */ + if (unlikely(status & E1000_RXD_STAT_IXSM)) return; + /* TCP/UDP checksum error bit is set */ + if (unlikely(errors & E1000_RXD_ERR_TCPE)) { + /* let the stack verify checksum errors */ + adapter->hw_csum_err++; + return; + } + /* TCP/UDP Checksum has not been calculated */ + if (!(status & E1000_RXD_STAT_TCPCS)) + return; + + /* It must be a TCP or UDP packet with a valid checksum */ + if (likely(status & E1000_RXD_STAT_TCPCS)) { + /* TCP checksum is good */ + skb->ip_summed = CHECKSUM_UNNECESSARY; + } + adapter->hw_csum_good++; +} + +/** + * e1000_consume_page - helper function + **/ +static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb, + u16 length) +{ + bi->page = NULL; + skb->len += length; + skb->data_len += length; + skb->truesize += length; +} + +/** + * e1000_receive_skb - helper function to handle rx indications + * @adapter: board private structure + * @status: descriptor status field as written by hardware + * @vlan: descriptor vlan field as written by hardware (no le/be conversion) + * @skb: pointer to sk_buff to be indicated to stack + */ +static void e1000_receive_skb(struct e1000_adapter *adapter, u8 status, + __le16 vlan, struct sk_buff *skb) +{ + if (unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))) { + vlan_hwaccel_receive_skb(skb, adapter->vlgrp, + le16_to_cpu(vlan) & + E1000_RXD_SPC_VLAN_MASK); + } else { + netif_receive_skb(skb); + } +} + +/** + * e1000_clean_jumbo_rx_irq - Send received data up the network stack; legacy + * @adapter: board private structure + * @rx_ring: ring to clean + * @work_done: amount of napi work completed this call + * @work_to_do: max amount of work allowed for this call to do + * + * the return value indicates whether actual cleaning was done, there + * is no guarantee that everything was cleaned + */ +static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc, *next_rxd; + struct e1000_buffer *buffer_info, *next_buffer; + unsigned long irq_flags; + u32 length; + unsigned int i; + int cleaned_count = 0; + bool cleaned = false; + unsigned int total_rx_bytes=0, total_rx_packets=0; + + i = rx_ring->next_to_clean; + rx_desc = E1000_RX_DESC(*rx_ring, i); + buffer_info = &rx_ring->buffer_info[i]; + + while (rx_desc->status & E1000_RXD_STAT_DD) { + struct sk_buff *skb; + u8 status; + + if (*work_done >= work_to_do) + break; + (*work_done)++; + + status = rx_desc->status; + skb = buffer_info->skb; + if (!adapter->ecdev) buffer_info->skb = NULL; + + if (++i == rx_ring->count) i = 0; + next_rxd = E1000_RX_DESC(*rx_ring, i); + prefetch(next_rxd); + + next_buffer = &rx_ring->buffer_info[i]; + + cleaned = true; + cleaned_count++; + pci_unmap_page(pdev, buffer_info->dma, buffer_info->length, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + length = le16_to_cpu(rx_desc->length); + + /* errors is only valid for DD + EOP descriptors */ + if (!adapter->ecdev && + unlikely((status & E1000_RXD_STAT_EOP) && + (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK))) { + u8 last_byte = *(skb->data + length - 1); + if (TBI_ACCEPT(hw, status, rx_desc->errors, length, + last_byte)) { + spin_lock_irqsave(&adapter->stats_lock, + irq_flags); + e1000_tbi_adjust_stats(hw, &adapter->stats, + length, skb->data); + spin_unlock_irqrestore(&adapter->stats_lock, + irq_flags); + length--; + } else { + /* recycle both page and skb */ + buffer_info->skb = skb; + /* an error means any chain goes out the window + * too */ + if (rx_ring->rx_skb_top) + dev_kfree_skb(rx_ring->rx_skb_top); + rx_ring->rx_skb_top = NULL; + goto next_desc; + } + } + +#define rxtop rx_ring->rx_skb_top + if (!(status & E1000_RXD_STAT_EOP)) { + /* this descriptor is only the beginning (or middle) */ + if (!rxtop) { + /* this is the beginning of a chain */ + rxtop = skb; + skb_fill_page_desc(rxtop, 0, buffer_info->page, + 0, length); + } else { + /* this is the middle of a chain */ + skb_fill_page_desc(rxtop, + skb_shinfo(rxtop)->nr_frags, + buffer_info->page, 0, length); + /* re-use the skb, only consumed the page */ + buffer_info->skb = skb; + } + e1000_consume_page(buffer_info, rxtop, length); + goto next_desc; + } else { + if (rxtop) { + /* end of the chain */ + skb_fill_page_desc(rxtop, + skb_shinfo(rxtop)->nr_frags, + buffer_info->page, 0, length); + /* re-use the current skb, we only consumed the + * page */ + buffer_info->skb = skb; + skb = rxtop; + rxtop = NULL; + e1000_consume_page(buffer_info, skb, length); + } else { + /* no chain, got EOP, this buf is the packet + * copybreak to save the put_page/alloc_page */ + if (length <= copybreak && + skb_tailroom(skb) >= length) { + u8 *vaddr; + vaddr = kmap_atomic(buffer_info->page, + KM_SKB_DATA_SOFTIRQ); + memcpy(skb_tail_pointer(skb), vaddr, length); + kunmap_atomic(vaddr, + KM_SKB_DATA_SOFTIRQ); + /* re-use the page, so don't erase + * buffer_info->page */ + skb_put(skb, length); + } else { + skb_fill_page_desc(skb, 0, + buffer_info->page, 0, + length); + e1000_consume_page(buffer_info, skb, + length); + } + } + } + + /* Receive Checksum Offload XXX recompute due to CRC strip? */ + e1000_rx_checksum(adapter, + (u32)(status) | + ((u32)(rx_desc->errors) << 24), + le16_to_cpu(rx_desc->csum), skb); + + pskb_trim(skb, skb->len - 4); + + /* probably a little skewed due to removing CRC */ + total_rx_bytes += skb->len; + total_rx_packets++; + + /* eth type trans needs skb->data to point to something */ + if (!pskb_may_pull(skb, ETH_HLEN)) { + DPRINTK(DRV, ERR, "pskb_may_pull failed.\n"); + if (!adapter->ecdev) dev_kfree_skb(skb); + goto next_desc; + } + + if (adapter->ecdev) { + ecdev_receive(adapter->ecdev, skb->data, length); + + // No need to detect link status as + // long as frames are received: Reset watchdog. + adapter->ec_watchdog_jiffies = jiffies; + } else { + skb->protocol = eth_type_trans(skb, netdev); + e1000_receive_skb(adapter, status, rx_desc->special, skb); + } +next_desc: + rx_desc->status = 0; + + /* return some buffers to hardware, one at a time is too slow */ + if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) { + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + cleaned_count = 0; + } + + /* use prefetched values */ + rx_desc = next_rxd; + buffer_info = next_buffer; + } + rx_ring->next_to_clean = i; + + cleaned_count = E1000_DESC_UNUSED(rx_ring); + if (cleaned_count) + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + + adapter->total_rx_packets += total_rx_packets; + adapter->total_rx_bytes += total_rx_bytes; + netdev->stats.rx_bytes += total_rx_bytes; + netdev->stats.rx_packets += total_rx_packets; + return cleaned; +} + +/** + * e1000_clean_rx_irq - Send received data up the network stack; legacy + * @adapter: board private structure + * @rx_ring: ring to clean + * @work_done: amount of napi work completed this call + * @work_to_do: max amount of work allowed for this call to do + */ +static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc, *next_rxd; + struct e1000_buffer *buffer_info, *next_buffer; + unsigned long flags; + u32 length; + unsigned int i; + int cleaned_count = 0; + bool cleaned = false; + unsigned int total_rx_bytes=0, total_rx_packets=0; + + i = rx_ring->next_to_clean; + rx_desc = E1000_RX_DESC(*rx_ring, i); + buffer_info = &rx_ring->buffer_info[i]; + + while (rx_desc->status & E1000_RXD_STAT_DD) { + struct sk_buff *skb; + u8 status; + + if (*work_done >= work_to_do) + break; + (*work_done)++; + + status = rx_desc->status; + skb = buffer_info->skb; + if (!adapter->ecdev) buffer_info->skb = NULL; + + prefetch(skb->data - NET_IP_ALIGN); + + if (++i == rx_ring->count) i = 0; + next_rxd = E1000_RX_DESC(*rx_ring, i); + prefetch(next_rxd); + + next_buffer = &rx_ring->buffer_info[i]; + + cleaned = true; + cleaned_count++; + pci_unmap_single(pdev, buffer_info->dma, buffer_info->length, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + length = le16_to_cpu(rx_desc->length); + /* !EOP means multiple descriptors were used to store a single + * packet, if thats the case we need to toss it. In fact, we + * to toss every packet with the EOP bit clear and the next + * frame that _does_ have the EOP bit set, as it is by + * definition only a frame fragment + */ + if (unlikely(!(status & E1000_RXD_STAT_EOP))) + adapter->discarding = true; + + if (adapter->discarding) { + /* All receives must fit into a single buffer */ + E1000_DBG("%s: Receive packet consumed multiple" + " buffers\n", netdev->name); + /* recycle */ + buffer_info->skb = skb; + if (status & E1000_RXD_STAT_EOP) + adapter->discarding = false; + goto next_desc; + } + + if (!adapter->ecdev && + unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) { + u8 last_byte = *(skb->data + length - 1); + if (TBI_ACCEPT(hw, status, rx_desc->errors, length, + last_byte)) { + spin_lock_irqsave(&adapter->stats_lock, flags); + e1000_tbi_adjust_stats(hw, &adapter->stats, + length, skb->data); + spin_unlock_irqrestore(&adapter->stats_lock, + flags); + length--; + } else { + /* recycle */ + buffer_info->skb = skb; + goto next_desc; + } + } + + /* adjust length to remove Ethernet CRC, this must be + * done after the TBI_ACCEPT workaround above */ + length -= 4; + + /* probably a little skewed due to removing CRC */ + total_rx_bytes += length; + total_rx_packets++; + + /* code added for copybreak, this should improve + * performance for small packets with large amounts + * of reassembly being done in the stack */ + if (!adapter->ecdev && length < copybreak) { + struct sk_buff *new_skb = + netdev_alloc_skb_ip_align(netdev, length); + if (new_skb) { + skb_copy_to_linear_data_offset(new_skb, + -NET_IP_ALIGN, + (skb->data - + NET_IP_ALIGN), + (length + + NET_IP_ALIGN)); + /* save the skb in buffer_info as good */ + buffer_info->skb = skb; + skb = new_skb; + } + /* else just continue with the old one */ + } + /* end copybreak code */ + skb_put(skb, length); + + /* Receive Checksum Offload */ + e1000_rx_checksum(adapter, + (u32)(status) | + ((u32)(rx_desc->errors) << 24), + le16_to_cpu(rx_desc->csum), skb); + + if (adapter->ecdev) { + ecdev_receive(adapter->ecdev, skb->data, length); + + // No need to detect link status as + // long as frames are received: Reset watchdog. + adapter->ec_watchdog_jiffies = jiffies; + } else { + skb->protocol = eth_type_trans(skb, netdev); + e1000_receive_skb(adapter, status, rx_desc->special, skb); + } + +next_desc: + rx_desc->status = 0; + + /* return some buffers to hardware, one at a time is too slow */ + if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) { + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + cleaned_count = 0; + } + + /* use prefetched values */ + rx_desc = next_rxd; + buffer_info = next_buffer; + } + rx_ring->next_to_clean = i; + + cleaned_count = E1000_DESC_UNUSED(rx_ring); + if (cleaned_count) + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + + adapter->total_rx_packets += total_rx_packets; + adapter->total_rx_bytes += total_rx_bytes; + netdev->stats.rx_bytes += total_rx_bytes; + netdev->stats.rx_packets += total_rx_packets; + return cleaned; +} + +/** + * e1000_alloc_jumbo_rx_buffers - Replace used jumbo receive buffers + * @adapter: address of board private structure + * @rx_ring: pointer to receive ring structure + * @cleaned_count: number of buffers to allocate this pass + **/ + +static void +e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, int cleaned_count) +{ + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc; + struct e1000_buffer *buffer_info; + struct sk_buff *skb; + unsigned int i; + unsigned int bufsz = 256 - 16 /*for skb_reserve */ ; + + i = rx_ring->next_to_use; + buffer_info = &rx_ring->buffer_info[i]; + + while (cleaned_count--) { + skb = buffer_info->skb; + if (skb) { + skb_trim(skb, 0); + goto check_page; + } + + skb = netdev_alloc_skb_ip_align(netdev, bufsz); + if (unlikely(!skb)) { + /* Better luck next round */ + adapter->alloc_rx_buff_failed++; + break; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + struct sk_buff *oldskb = skb; + DPRINTK(PROBE, ERR, "skb align check failed: %u bytes " + "at %p\n", bufsz, skb->data); + /* Try again, without freeing the previous */ + skb = netdev_alloc_skb_ip_align(netdev, bufsz); + /* Failed allocation, critical failure */ + if (!skb) { + dev_kfree_skb(oldskb); + adapter->alloc_rx_buff_failed++; + break; + } + + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + /* give up */ + dev_kfree_skb(skb); + dev_kfree_skb(oldskb); + break; /* while (cleaned_count--) */ + } + + /* Use new allocation */ + dev_kfree_skb(oldskb); + } + buffer_info->skb = skb; + buffer_info->length = adapter->rx_buffer_len; +check_page: + /* allocate a new page if necessary */ + if (!buffer_info->page) { + buffer_info->page = alloc_page(GFP_ATOMIC); + if (unlikely(!buffer_info->page)) { + adapter->alloc_rx_buff_failed++; + break; + } + } + + if (!buffer_info->dma) { + buffer_info->dma = pci_map_page(pdev, + buffer_info->page, 0, + buffer_info->length, + PCI_DMA_FROMDEVICE); + if (pci_dma_mapping_error(pdev, buffer_info->dma)) { + put_page(buffer_info->page); + dev_kfree_skb(skb); + buffer_info->page = NULL; + buffer_info->skb = NULL; + buffer_info->dma = 0; + adapter->alloc_rx_buff_failed++; + break; /* while !buffer_info->skb */ + } + } + + rx_desc = E1000_RX_DESC(*rx_ring, i); + rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + + if (unlikely(++i == rx_ring->count)) + i = 0; + buffer_info = &rx_ring->buffer_info[i]; + } + + if (likely(rx_ring->next_to_use != i)) { + rx_ring->next_to_use = i; + if (unlikely(i-- == 0)) + i = (rx_ring->count - 1); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + writel(i, adapter->hw.hw_addr + rx_ring->rdt); + } +} + +/** + * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended + * @adapter: address of board private structure + **/ + +static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc; + struct e1000_buffer *buffer_info; + struct sk_buff *skb; + unsigned int i; + unsigned int bufsz = adapter->rx_buffer_len; + + i = rx_ring->next_to_use; + buffer_info = &rx_ring->buffer_info[i]; + + while (cleaned_count--) { + skb = buffer_info->skb; + if (skb) { + skb_trim(skb, 0); + goto map_skb; + } + + skb = netdev_alloc_skb_ip_align(netdev, bufsz); + if (unlikely(!skb)) { + /* Better luck next round */ + adapter->alloc_rx_buff_failed++; + break; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + struct sk_buff *oldskb = skb; + DPRINTK(RX_ERR, ERR, "skb align check failed: %u bytes " + "at %p\n", bufsz, skb->data); + /* Try again, without freeing the previous */ + skb = netdev_alloc_skb_ip_align(netdev, bufsz); + /* Failed allocation, critical failure */ + if (!skb) { + dev_kfree_skb(oldskb); + adapter->alloc_rx_buff_failed++; + break; + } + + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + /* give up */ + dev_kfree_skb(skb); + dev_kfree_skb(oldskb); + adapter->alloc_rx_buff_failed++; + break; /* while !buffer_info->skb */ + } + + /* Use new allocation */ + dev_kfree_skb(oldskb); + } + buffer_info->skb = skb; + buffer_info->length = adapter->rx_buffer_len; +map_skb: + buffer_info->dma = pci_map_single(pdev, + skb->data, + buffer_info->length, + PCI_DMA_FROMDEVICE); + if (pci_dma_mapping_error(pdev, buffer_info->dma)) { + dev_kfree_skb(skb); + buffer_info->skb = NULL; + buffer_info->dma = 0; + adapter->alloc_rx_buff_failed++; + break; /* while !buffer_info->skb */ + } + + /* + * XXX if it was allocated cleanly it will never map to a + * boundary crossing + */ + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, + (void *)(unsigned long)buffer_info->dma, + adapter->rx_buffer_len)) { + DPRINTK(RX_ERR, ERR, + "dma align check failed: %u bytes at %p\n", + adapter->rx_buffer_len, + (void *)(unsigned long)buffer_info->dma); + if (!adapter->ecdev) { + dev_kfree_skb(skb); + buffer_info->skb = NULL; + } + + pci_unmap_single(pdev, buffer_info->dma, + adapter->rx_buffer_len, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + adapter->alloc_rx_buff_failed++; + break; /* while !buffer_info->skb */ + } + rx_desc = E1000_RX_DESC(*rx_ring, i); + rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + + if (unlikely(++i == rx_ring->count)) + i = 0; + buffer_info = &rx_ring->buffer_info[i]; + } + + if (likely(rx_ring->next_to_use != i)) { + rx_ring->next_to_use = i; + if (unlikely(i-- == 0)) + i = (rx_ring->count - 1); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + writel(i, hw->hw_addr + rx_ring->rdt); + } +} + +/** + * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers. + * @adapter: + **/ + +static void e1000_smartspeed(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_status; + u16 phy_ctrl; + + if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg || + !(hw->autoneg_advertised & ADVERTISE_1000_FULL)) + return; + + if (adapter->smartspeed == 0) { + /* If Master/Slave config fault is asserted twice, + * we assume back-to-back */ + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status); + if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return; + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status); + if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return; + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl); + if (phy_ctrl & CR_1000T_MS_ENABLE) { + phy_ctrl &= ~CR_1000T_MS_ENABLE; + e1000_write_phy_reg(hw, PHY_1000T_CTRL, + phy_ctrl); + adapter->smartspeed++; + if (!e1000_phy_setup_autoneg(hw) && + !e1000_read_phy_reg(hw, PHY_CTRL, + &phy_ctrl)) { + phy_ctrl |= (MII_CR_AUTO_NEG_EN | + MII_CR_RESTART_AUTO_NEG); + e1000_write_phy_reg(hw, PHY_CTRL, + phy_ctrl); + } + } + return; + } else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) { + /* If still no link, perhaps using 2/3 pair cable */ + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl); + phy_ctrl |= CR_1000T_MS_ENABLE; + e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl); + if (!e1000_phy_setup_autoneg(hw) && + !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) { + phy_ctrl |= (MII_CR_AUTO_NEG_EN | + MII_CR_RESTART_AUTO_NEG); + e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl); + } + } + /* Restart process after E1000_SMARTSPEED_MAX iterations */ + if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX) + adapter->smartspeed = 0; +} + +/** + * e1000_ioctl - + * @netdev: + * @ifreq: + * @cmd: + **/ + +static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + switch (cmd) { + case SIOCGMIIPHY: + case SIOCGMIIREG: + case SIOCSMIIREG: + return e1000_mii_ioctl(netdev, ifr, cmd); + default: + return -EOPNOTSUPP; + } +} + +/** + * e1000_mii_ioctl - + * @netdev: + * @ifreq: + * @cmd: + **/ + +static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct mii_ioctl_data *data = if_mii(ifr); + int retval; + u16 mii_reg; + u16 spddplx; + unsigned long flags; + + if (hw->media_type != e1000_media_type_copper) + return -EOPNOTSUPP; + + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = hw->phy_addr; + break; + case SIOCGMIIREG: + if (adapter->ecdev) return -EPERM; + spin_lock_irqsave(&adapter->stats_lock, flags); + if (e1000_read_phy_reg(hw, data->reg_num & 0x1F, + &data->val_out)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); + break; + case SIOCSMIIREG: + if (adapter->ecdev) return -EPERM; + if (data->reg_num & ~(0x1F)) + return -EFAULT; + mii_reg = data->val_in; + spin_lock_irqsave(&adapter->stats_lock, flags); + if (e1000_write_phy_reg(hw, data->reg_num, + mii_reg)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); + if (hw->media_type == e1000_media_type_copper) { + switch (data->reg_num) { + case PHY_CTRL: + if (mii_reg & MII_CR_POWER_DOWN) + break; + if (mii_reg & MII_CR_AUTO_NEG_EN) { + hw->autoneg = 1; + hw->autoneg_advertised = 0x2F; + } else { + if (mii_reg & 0x40) + spddplx = SPEED_1000; + else if (mii_reg & 0x2000) + spddplx = SPEED_100; + else + spddplx = SPEED_10; + spddplx += (mii_reg & 0x100) + ? DUPLEX_FULL : + DUPLEX_HALF; + retval = e1000_set_spd_dplx(adapter, + spddplx); + if (retval) + return retval; + } + if (netif_running(adapter->netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + break; + case M88E1000_PHY_SPEC_CTRL: + case M88E1000_EXT_PHY_SPEC_CTRL: + if (e1000_phy_reset(hw)) + return -EIO; + break; + } + } else { + switch (data->reg_num) { + case PHY_CTRL: + if (mii_reg & MII_CR_POWER_DOWN) + break; + if (netif_running(adapter->netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + break; + } + } + break; + default: + return -EOPNOTSUPP; + } + return E1000_SUCCESS; +} + +void e1000_pci_set_mwi(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + int ret_val = pci_set_mwi(adapter->pdev); + + if (ret_val) + DPRINTK(PROBE, ERR, "Error in setting MWI\n"); +} + +void e1000_pci_clear_mwi(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + + pci_clear_mwi(adapter->pdev); +} + +int e1000_pcix_get_mmrbc(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + return pcix_get_mmrbc(adapter->pdev); +} + +void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc) +{ + struct e1000_adapter *adapter = hw->back; + pcix_set_mmrbc(adapter->pdev, mmrbc); +} + +void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value) +{ + outl(value, port); +} + +static void e1000_vlan_rx_register(struct net_device *netdev, + struct vlan_group *grp) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 ctrl, rctl; + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); + adapter->vlgrp = grp; + + if (grp) { + /* enable VLAN tag insert/strip */ + ctrl = er32(CTRL); + ctrl |= E1000_CTRL_VME; + ew32(CTRL, ctrl); + + /* enable VLAN receive filtering */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_CFIEN; + if (!(netdev->flags & IFF_PROMISC)) + rctl |= E1000_RCTL_VFE; + ew32(RCTL, rctl); + e1000_update_mng_vlan(adapter); + } else { + /* disable VLAN tag insert/strip */ + ctrl = er32(CTRL); + ctrl &= ~E1000_CTRL_VME; + ew32(CTRL, ctrl); + + /* disable VLAN receive filtering */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_VFE; + ew32(RCTL, rctl); + + if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) { + e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + } + } + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); +} + +static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 vfta, index; + + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + (vid == adapter->mng_vlan_id)) + return; + /* add VID to filter table */ + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, VFTA, index); + vfta |= (1 << (vid & 0x1F)); + e1000_write_vfta(hw, index, vfta); +} + +static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 vfta, index; + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); + vlan_group_set_device(adapter->vlgrp, vid, NULL); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + + /* remove VID from filter table */ + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, VFTA, index); + vfta &= ~(1 << (vid & 0x1F)); + e1000_write_vfta(hw, index, vfta); +} + +static void e1000_restore_vlan(struct e1000_adapter *adapter) +{ + e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp); + + if (adapter->vlgrp) { + u16 vid; + for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) { + if (!vlan_group_get_device(adapter->vlgrp, vid)) + continue; + e1000_vlan_rx_add_vid(adapter->netdev, vid); + } + } +} + +int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx) +{ + struct e1000_hw *hw = &adapter->hw; + + hw->autoneg = 0; + + /* Fiber NICs only allow 1000 gbps Full duplex */ + if ((hw->media_type == e1000_media_type_fiber) && + spddplx != (SPEED_1000 + DUPLEX_FULL)) { + DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; + } + + switch (spddplx) { + case SPEED_10 + DUPLEX_HALF: + hw->forced_speed_duplex = e1000_10_half; + break; + case SPEED_10 + DUPLEX_FULL: + hw->forced_speed_duplex = e1000_10_full; + break; + case SPEED_100 + DUPLEX_HALF: + hw->forced_speed_duplex = e1000_100_half; + break; + case SPEED_100 + DUPLEX_FULL: + hw->forced_speed_duplex = e1000_100_full; + break; + case SPEED_1000 + DUPLEX_FULL: + hw->autoneg = 1; + hw->autoneg_advertised = ADVERTISE_1000_FULL; + break; + case SPEED_1000 + DUPLEX_HALF: /* not supported */ + default: + DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; + } + return 0; +} + +static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 ctrl, ctrl_ext, rctl, status; + u32 wufc = adapter->wol; +#ifdef CONFIG_PM + int retval = 0; +#endif + + if (adapter->ecdev) + return -EBUSY; + + netif_device_detach(netdev); + + if (netif_running(netdev)) { + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); + e1000_down(adapter); + } + +#ifdef CONFIG_PM + retval = pci_save_state(pdev); + if (retval) + return retval; +#endif + + status = er32(STATUS); + if (status & E1000_STATUS_LU) + wufc &= ~E1000_WUFC_LNKC; + + if (wufc) { + e1000_setup_rctl(adapter); + e1000_set_rx_mode(netdev); + + /* turn on all-multi mode if wake on multicast is enabled */ + if (wufc & E1000_WUFC_MC) { + rctl = er32(RCTL); + rctl |= E1000_RCTL_MPE; + ew32(RCTL, rctl); + } + + if (hw->mac_type >= e1000_82540) { + ctrl = er32(CTRL); + /* advertise wake from D3Cold */ + #define E1000_CTRL_ADVD3WUC 0x00100000 + /* phy power management enable */ + #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000 + ctrl |= E1000_CTRL_ADVD3WUC | + E1000_CTRL_EN_PHY_PWR_MGMT; + ew32(CTRL, ctrl); + } + + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { + /* keep the laser running in D3 */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA; + ew32(CTRL_EXT, ctrl_ext); + } + + ew32(WUC, E1000_WUC_PME_EN); + ew32(WUFC, wufc); + } else { + ew32(WUC, 0); + ew32(WUFC, 0); + } + + e1000_release_manageability(adapter); + + *enable_wake = !!wufc; + + /* make sure adapter isn't asleep if manageability is enabled */ + if (adapter->en_mng_pt) + *enable_wake = true; + + if (netif_running(netdev)) + e1000_free_irq(adapter); + + pci_disable_device(pdev); + + return 0; +} + +#ifdef CONFIG_PM +static int e1000_suspend(struct pci_dev *pdev, pm_message_t state) +{ + int retval; + bool wake; + + retval = __e1000_shutdown(pdev, &wake); + if (retval) + return retval; + + if (wake) { + pci_prepare_to_sleep(pdev); + } else { + pci_wake_from_d3(pdev, false); + pci_set_power_state(pdev, PCI_D3hot); + } + + return 0; +} + +static int e1000_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 err; + + if (adapter->ecdev) + return -EBUSY; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { + printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n"); + return err; + } + pci_set_master(pdev); + + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + + if (netif_running(netdev)) { + err = e1000_request_irq(adapter); + if (err) + return err; + } + + e1000_power_up_phy(adapter); + e1000_reset(adapter); + ew32(WUS, ~0); + + e1000_init_manageability(adapter); + + if (netif_running(netdev)) + e1000_up(adapter); + + if (!adapter->ecdev) netif_device_attach(netdev); + + return 0; +} +#endif + +static void e1000_shutdown(struct pci_dev *pdev) +{ + bool wake; + + __e1000_shutdown(pdev, &wake); + + if (system_state == SYSTEM_POWER_OFF) { + pci_wake_from_d3(pdev, wake); + pci_set_power_state(pdev, PCI_D3hot); + } +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling 'interrupt' - used by things like netconsole to send skbs + * without having to re-enable interrupts. It's not called while + * the interrupt routine is executing. + */ +static void e1000_netpoll(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + disable_irq(adapter->pdev->irq); + e1000_intr(adapter->pdev->irq, netdev); + enable_irq(adapter->pdev->irq); +} +#endif + +/** + * e1000_io_error_detected - called when PCI error is detected + * @pdev: Pointer to PCI device + * @state: The current pci connection state + * + * This function is called after a PCI bus error affecting + * this device has been detected. + */ +static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + + netif_device_detach(netdev); + + if (state == pci_channel_io_perm_failure) + return PCI_ERS_RESULT_DISCONNECT; + + if (netif_running(netdev)) + e1000_down(adapter); + pci_disable_device(pdev); + + /* Request a slot slot reset. */ + return PCI_ERS_RESULT_NEED_RESET; +} + +/** + * e1000_io_slot_reset - called after the pci bus has been reset. + * @pdev: Pointer to PCI device + * + * Restart the card from scratch, as if from a cold-boot. Implementation + * resembles the first-half of the e1000_resume routine. + */ +static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int err; + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { + printk(KERN_ERR "e1000: Cannot re-enable PCI device after reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + pci_set_master(pdev); + + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + + e1000_reset(adapter); + ew32(WUS, ~0); + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * e1000_io_resume - called when traffic can start flowing again. + * @pdev: Pointer to PCI device + * + * This callback is called when the error recovery driver tells us that + * its OK to resume normal operation. Implementation resembles the + * second-half of the e1000_resume routine. + */ +static void e1000_io_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + + e1000_init_manageability(adapter); + + if (netif_running(netdev)) { + if (e1000_up(adapter)) { + printk("e1000: can't bring device back up after reset\n"); + return; + } + } + + netif_device_attach(netdev); +} + +/* e1000_main.c */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_main-2.6.33-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_main-2.6.33-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,4764 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include "e1000.h" +#include + +char e1000_driver_name[] = "e1000"; +static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver"; +#define DRV_VERSION "7.3.21-k5-NAPI" +const char e1000_driver_version[] = DRV_VERSION; +static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation."; + +/* e1000_pci_tbl - PCI Device ID Table + * + * Last entry must be all 0s + * + * Macro expands to... + * {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} + */ +static struct pci_device_id e1000_pci_tbl[] = { + INTEL_E1000_ETHERNET_DEVICE(0x1000), + INTEL_E1000_ETHERNET_DEVICE(0x1001), + INTEL_E1000_ETHERNET_DEVICE(0x1004), + INTEL_E1000_ETHERNET_DEVICE(0x1008), + INTEL_E1000_ETHERNET_DEVICE(0x1009), + INTEL_E1000_ETHERNET_DEVICE(0x100C), + INTEL_E1000_ETHERNET_DEVICE(0x100D), + INTEL_E1000_ETHERNET_DEVICE(0x100E), + INTEL_E1000_ETHERNET_DEVICE(0x100F), + INTEL_E1000_ETHERNET_DEVICE(0x1010), + INTEL_E1000_ETHERNET_DEVICE(0x1011), + INTEL_E1000_ETHERNET_DEVICE(0x1012), + INTEL_E1000_ETHERNET_DEVICE(0x1013), + INTEL_E1000_ETHERNET_DEVICE(0x1014), + INTEL_E1000_ETHERNET_DEVICE(0x1015), + INTEL_E1000_ETHERNET_DEVICE(0x1016), + INTEL_E1000_ETHERNET_DEVICE(0x1017), + INTEL_E1000_ETHERNET_DEVICE(0x1018), + INTEL_E1000_ETHERNET_DEVICE(0x1019), + INTEL_E1000_ETHERNET_DEVICE(0x101A), + INTEL_E1000_ETHERNET_DEVICE(0x101D), + INTEL_E1000_ETHERNET_DEVICE(0x101E), + INTEL_E1000_ETHERNET_DEVICE(0x1026), + INTEL_E1000_ETHERNET_DEVICE(0x1027), + INTEL_E1000_ETHERNET_DEVICE(0x1028), + INTEL_E1000_ETHERNET_DEVICE(0x1075), + INTEL_E1000_ETHERNET_DEVICE(0x1076), + INTEL_E1000_ETHERNET_DEVICE(0x1077), + INTEL_E1000_ETHERNET_DEVICE(0x1078), + INTEL_E1000_ETHERNET_DEVICE(0x1079), + INTEL_E1000_ETHERNET_DEVICE(0x107A), + INTEL_E1000_ETHERNET_DEVICE(0x107B), + INTEL_E1000_ETHERNET_DEVICE(0x107C), + INTEL_E1000_ETHERNET_DEVICE(0x108A), + INTEL_E1000_ETHERNET_DEVICE(0x1099), + INTEL_E1000_ETHERNET_DEVICE(0x10B5), + /* required last entry */ + {0,} +}; + +MODULE_DEVICE_TABLE(pci, e1000_pci_tbl); + +int e1000_up(struct e1000_adapter *adapter); +void e1000_down(struct e1000_adapter *adapter); +void e1000_reinit_locked(struct e1000_adapter *adapter); +void e1000_reset(struct e1000_adapter *adapter); +int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +void e1000_free_all_rx_resources(struct e1000_adapter *adapter); +static int e1000_setup_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *txdr); +static int e1000_setup_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rxdr); +static void e1000_free_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static void e1000_free_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring); +void e1000_update_stats(struct e1000_adapter *adapter); + +static int e1000_init_module(void); +static void e1000_exit_module(void); +static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent); +static void __devexit e1000_remove(struct pci_dev *pdev); +static int e1000_alloc_queues(struct e1000_adapter *adapter); +static int e1000_sw_init(struct e1000_adapter *adapter); +static int e1000_open(struct net_device *netdev); +static int e1000_close(struct net_device *netdev); +static void e1000_configure_tx(struct e1000_adapter *adapter); +static void e1000_configure_rx(struct e1000_adapter *adapter); +static void e1000_setup_rctl(struct e1000_adapter *adapter); +static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter); +static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter); +static void e1000_clean_tx_ring(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static void e1000_clean_rx_ring(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring); +static void e1000_set_rx_mode(struct net_device *netdev); +static void e1000_update_phy_info(unsigned long data); +static void e1000_watchdog(unsigned long data); +static void e1000_82547_tx_fifo_stall(unsigned long data); +static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, + struct net_device *netdev); +static struct net_device_stats * e1000_get_stats(struct net_device *netdev); +static int e1000_change_mtu(struct net_device *netdev, int new_mtu); +static int e1000_set_mac(struct net_device *netdev, void *p); +static irqreturn_t e1000_intr(int irq, void *data); +static bool e1000_clean_tx_irq(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring); +static int e1000_clean(struct napi_struct *napi, int budget); +static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); +static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); +static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); +static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); +static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd); +static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd); +static void e1000_enter_82542_rst(struct e1000_adapter *adapter); +static void e1000_leave_82542_rst(struct e1000_adapter *adapter); +static void e1000_tx_timeout(struct net_device *dev); +static void e1000_reset_task(struct work_struct *work); +static void e1000_smartspeed(struct e1000_adapter *adapter); +static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, + struct sk_buff *skb); + +static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp); +static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); +static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); +static void e1000_restore_vlan(struct e1000_adapter *adapter); + +#ifdef CONFIG_PM +static int e1000_suspend(struct pci_dev *pdev, pm_message_t state); +static int e1000_resume(struct pci_dev *pdev); +#endif +static void e1000_shutdown(struct pci_dev *pdev); + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* for netdump / net console */ +static void e1000_netpoll (struct net_device *netdev); +#endif + +#define COPYBREAK_DEFAULT 256 +static unsigned int copybreak __read_mostly = COPYBREAK_DEFAULT; +module_param(copybreak, uint, 0644); +MODULE_PARM_DESC(copybreak, + "Maximum size of packet that is copied to a new buffer on receive"); + +static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state); +static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev); +static void e1000_io_resume(struct pci_dev *pdev); + +static struct pci_error_handlers e1000_err_handler = { + .error_detected = e1000_io_error_detected, + .slot_reset = e1000_io_slot_reset, + .resume = e1000_io_resume, +}; + +static struct pci_driver e1000_driver = { + .name = e1000_driver_name, + .id_table = e1000_pci_tbl, + .probe = e1000_probe, + .remove = __devexit_p(e1000_remove), +#ifdef CONFIG_PM + /* Power Managment Hooks */ + .suspend = e1000_suspend, + .resume = e1000_resume, +#endif + .shutdown = e1000_shutdown, + .err_handler = &e1000_err_handler +}; + +MODULE_AUTHOR("Intel Corporation, "); +MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + +/** + * e1000_init_module - Driver Registration Routine + * + * e1000_init_module is the first routine called when the driver is + * loaded. All it does is register with the PCI subsystem. + **/ + +static int __init e1000_init_module(void) +{ + int ret; + printk(KERN_INFO "%s - version %s\n", + e1000_driver_string, e1000_driver_version); + + printk(KERN_INFO "%s\n", e1000_copyright); + + ret = pci_register_driver(&e1000_driver); + if (copybreak != COPYBREAK_DEFAULT) { + if (copybreak == 0) + printk(KERN_INFO "e1000: copybreak disabled\n"); + else + printk(KERN_INFO "e1000: copybreak enabled for " + "packets <= %u bytes\n", copybreak); + } + return ret; +} + +module_init(e1000_init_module); + +/** + * e1000_exit_module - Driver Exit Cleanup Routine + * + * e1000_exit_module is called just before the driver is removed + * from memory. + **/ + +static void __exit e1000_exit_module(void) +{ + pci_unregister_driver(&e1000_driver); +} + +module_exit(e1000_exit_module); + +static int e1000_request_irq(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + irq_handler_t handler = e1000_intr; + int irq_flags = IRQF_SHARED; + int err; + + err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name, + netdev); + if (err) { + DPRINTK(PROBE, ERR, + "Unable to allocate interrupt Error: %d\n", err); + } + + return err; +} + +static void e1000_free_irq(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + + free_irq(adapter->pdev->irq, netdev); +} + +/** + * e1000_irq_disable - Mask off interrupt generation on the NIC + * @adapter: board private structure + **/ + +static void e1000_irq_disable(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + ew32(IMC, ~0); + E1000_WRITE_FLUSH(); + synchronize_irq(adapter->pdev->irq); +} + +/** + * e1000_irq_enable - Enable default interrupt generation settings + * @adapter: board private structure + **/ + +static void e1000_irq_enable(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + ew32(IMS, IMS_ENABLE_MASK); + E1000_WRITE_FLUSH(); +} + +static void e1000_update_mng_vlan(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u16 vid = hw->mng_cookie.vlan_id; + u16 old_vid = adapter->mng_vlan_id; + if (adapter->vlgrp) { + if (!vlan_group_get_device(adapter->vlgrp, vid)) { + if (hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) { + e1000_vlan_rx_add_vid(netdev, vid); + adapter->mng_vlan_id = vid; + } else + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + + if ((old_vid != (u16)E1000_MNG_VLAN_NONE) && + (vid != old_vid) && + !vlan_group_get_device(adapter->vlgrp, old_vid)) + e1000_vlan_rx_kill_vid(netdev, old_vid); + } else + adapter->mng_vlan_id = vid; + } +} + +static void e1000_init_manageability(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->en_mng_pt) { + u32 manc = er32(MANC); + + /* disable hardware interception of ARP */ + manc &= ~(E1000_MANC_ARP_EN); + + ew32(MANC, manc); + } +} + +static void e1000_release_manageability(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + if (adapter->en_mng_pt) { + u32 manc = er32(MANC); + + /* re-enable hardware interception of ARP */ + manc |= E1000_MANC_ARP_EN; + + ew32(MANC, manc); + } +} + +/** + * e1000_configure - configure the hardware for RX and TX + * @adapter = private board structure + **/ +static void e1000_configure(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + int i; + + e1000_set_rx_mode(netdev); + + e1000_restore_vlan(adapter); + e1000_init_manageability(adapter); + + e1000_configure_tx(adapter); + e1000_setup_rctl(adapter); + e1000_configure_rx(adapter); + /* call E1000_DESC_UNUSED which always leaves + * at least 1 descriptor unused to make sure + * next_to_use != next_to_clean */ + for (i = 0; i < adapter->num_rx_queues; i++) { + struct e1000_rx_ring *ring = &adapter->rx_ring[i]; + adapter->alloc_rx_buf(adapter, ring, + E1000_DESC_UNUSED(ring)); + } + + adapter->tx_queue_len = netdev->tx_queue_len; +} + +int e1000_up(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* hardware has been reset, we need to reload some things */ + e1000_configure(adapter); + + clear_bit(__E1000_DOWN, &adapter->flags); + + napi_enable(&adapter->napi); + + e1000_irq_enable(adapter); + + netif_wake_queue(adapter->netdev); + + /* fire a link change interrupt to start the watchdog */ + ew32(ICS, E1000_ICS_LSC); + return 0; +} + +/** + * e1000_power_up_phy - restore link in case the phy was powered down + * @adapter: address of board private structure + * + * The phy may be powered down to save power and turn off link when the + * driver is unloaded and wake on lan is not enabled (among others) + * *** this routine MUST be followed by a call to e1000_reset *** + * + **/ + +void e1000_power_up_phy(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 mii_reg = 0; + + /* Just clear the power down bit to wake the phy back up */ + if (hw->media_type == e1000_media_type_copper) { + /* according to the manual, the phy will retain its + * settings across a power-down/up cycle */ + e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg); + mii_reg &= ~MII_CR_POWER_DOWN; + e1000_write_phy_reg(hw, PHY_CTRL, mii_reg); + } +} + +static void e1000_power_down_phy(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + + /* Power down the PHY so no link is implied when interface is down * + * The PHY cannot be powered down if any of the following is true * + * (a) WoL is enabled + * (b) AMT is active + * (c) SoL/IDER session is active */ + if (!adapter->wol && hw->mac_type >= e1000_82540 && + hw->media_type == e1000_media_type_copper) { + u16 mii_reg = 0; + + switch (hw->mac_type) { + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (er32(MANC) & E1000_MANC_SMBUS_EN) + goto out; + break; + default: + goto out; + } + e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg); + mii_reg |= MII_CR_POWER_DOWN; + e1000_write_phy_reg(hw, PHY_CTRL, mii_reg); + mdelay(1); + } +out: + return; +} + +void e1000_down(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl, tctl; + + /* signal that we're down so the interrupt handler does not + * reschedule our watchdog timer */ + set_bit(__E1000_DOWN, &adapter->flags); + + /* disable receives in the hardware */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + /* flush and sleep below */ + + netif_tx_disable(netdev); + + /* disable transmits in the hardware */ + tctl = er32(TCTL); + tctl &= ~E1000_TCTL_EN; + ew32(TCTL, tctl); + /* flush both disables and wait for them to finish */ + E1000_WRITE_FLUSH(); + msleep(10); + + napi_disable(&adapter->napi); + + e1000_irq_disable(adapter); + + del_timer_sync(&adapter->tx_fifo_stall_timer); + del_timer_sync(&adapter->watchdog_timer); + del_timer_sync(&adapter->phy_info_timer); + + netdev->tx_queue_len = adapter->tx_queue_len; + adapter->link_speed = 0; + adapter->link_duplex = 0; + netif_carrier_off(netdev); + + e1000_reset(adapter); + e1000_clean_all_tx_rings(adapter); + e1000_clean_all_rx_rings(adapter); +} + +void e1000_reinit_locked(struct e1000_adapter *adapter) +{ + WARN_ON(in_interrupt()); + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + e1000_down(adapter); + e1000_up(adapter); + clear_bit(__E1000_RESETTING, &adapter->flags); +} + +void e1000_reset(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 pba = 0, tx_space, min_tx_space, min_rx_space; + bool legacy_pba_adjust = false; + u16 hwm; + + /* Repartition Pba for greater than 9k mtu + * To take effect CTRL.RST is required. + */ + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + case e1000_82544: + case e1000_82540: + case e1000_82541: + case e1000_82541_rev_2: + legacy_pba_adjust = true; + pba = E1000_PBA_48K; + break; + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + pba = E1000_PBA_48K; + break; + case e1000_82547: + case e1000_82547_rev_2: + legacy_pba_adjust = true; + pba = E1000_PBA_30K; + break; + case e1000_undefined: + case e1000_num_macs: + break; + } + + if (legacy_pba_adjust) { + if (hw->max_frame_size > E1000_RXBUFFER_8192) + pba -= 8; /* allocate more FIFO for Tx */ + + if (hw->mac_type == e1000_82547) { + adapter->tx_fifo_head = 0; + adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT; + adapter->tx_fifo_size = + (E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT; + atomic_set(&adapter->tx_fifo_stall, 0); + } + } else if (hw->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) { + /* adjust PBA for jumbo frames */ + ew32(PBA, pba); + + /* To maintain wire speed transmits, the Tx FIFO should be + * large enough to accommodate two full transmit packets, + * rounded up to the next 1KB and expressed in KB. Likewise, + * the Rx FIFO should be large enough to accommodate at least + * one full receive packet and is similarly rounded up and + * expressed in KB. */ + pba = er32(PBA); + /* upper 16 bits has Tx packet buffer allocation size in KB */ + tx_space = pba >> 16; + /* lower 16 bits has Rx packet buffer allocation size in KB */ + pba &= 0xffff; + /* + * the tx fifo also stores 16 bytes of information about the tx + * but don't include ethernet FCS because hardware appends it + */ + min_tx_space = (hw->max_frame_size + + sizeof(struct e1000_tx_desc) - + ETH_FCS_LEN) * 2; + min_tx_space = ALIGN(min_tx_space, 1024); + min_tx_space >>= 10; + /* software strips receive CRC, so leave room for it */ + min_rx_space = hw->max_frame_size; + min_rx_space = ALIGN(min_rx_space, 1024); + min_rx_space >>= 10; + + /* If current Tx allocation is less than the min Tx FIFO size, + * and the min Tx FIFO size is less than the current Rx FIFO + * allocation, take space away from current Rx allocation */ + if (tx_space < min_tx_space && + ((min_tx_space - tx_space) < pba)) { + pba = pba - (min_tx_space - tx_space); + + /* PCI/PCIx hardware has PBA alignment constraints */ + switch (hw->mac_type) { + case e1000_82545 ... e1000_82546_rev_3: + pba &= ~(E1000_PBA_8K - 1); + break; + default: + break; + } + + /* if short on rx space, rx wins and must trump tx + * adjustment or use Early Receive if available */ + if (pba < min_rx_space) + pba = min_rx_space; + } + } + + ew32(PBA, pba); + + /* + * flow control settings: + * The high water mark must be low enough to fit one full frame + * (or the size used for early receive) above it in the Rx FIFO. + * Set it to the lower of: + * - 90% of the Rx FIFO size, and + * - the full Rx FIFO size minus the early receive size (for parts + * with ERT support assuming ERT set to E1000_ERT_2048), or + * - the full Rx FIFO size minus one full frame + */ + hwm = min(((pba << 10) * 9 / 10), + ((pba << 10) - hw->max_frame_size)); + + hw->fc_high_water = hwm & 0xFFF8; /* 8-byte granularity */ + hw->fc_low_water = hw->fc_high_water - 8; + hw->fc_pause_time = E1000_FC_PAUSE_TIME; + hw->fc_send_xon = 1; + hw->fc = hw->original_fc; + + /* Allow time for pending master requests to run */ + e1000_reset_hw(hw); + if (hw->mac_type >= e1000_82544) + ew32(WUC, 0); + + if (e1000_init_hw(hw)) + DPRINTK(PROBE, ERR, "Hardware Error\n"); + e1000_update_mng_vlan(adapter); + + /* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */ + if (hw->mac_type >= e1000_82544 && + hw->autoneg == 1 && + hw->autoneg_advertised == ADVERTISE_1000_FULL) { + u32 ctrl = er32(CTRL); + /* clear phy power management bit if we are in gig only mode, + * which if enabled will attempt negotiation to 100Mb, which + * can cause a loss of link at power off or driver unload */ + ctrl &= ~E1000_CTRL_SWDPIN3; + ew32(CTRL, ctrl); + } + + /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ + ew32(VET, ETHERNET_IEEE_VLAN_TYPE); + + e1000_reset_adaptive(hw); + e1000_phy_get_info(hw, &adapter->phy_info); + + e1000_release_manageability(adapter); +} + +/** + * Dump the eeprom for users having checksum issues + **/ +static void e1000_dump_eeprom(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct ethtool_eeprom eeprom; + const struct ethtool_ops *ops = netdev->ethtool_ops; + u8 *data; + int i; + u16 csum_old, csum_new = 0; + + eeprom.len = ops->get_eeprom_len(netdev); + eeprom.offset = 0; + + data = kmalloc(eeprom.len, GFP_KERNEL); + if (!data) { + printk(KERN_ERR "Unable to allocate memory to dump EEPROM" + " data\n"); + return; + } + + ops->get_eeprom(netdev, &eeprom, data); + + csum_old = (data[EEPROM_CHECKSUM_REG * 2]) + + (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8); + for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2) + csum_new += data[i] + (data[i + 1] << 8); + csum_new = EEPROM_SUM - csum_new; + + printk(KERN_ERR "/*********************/\n"); + printk(KERN_ERR "Current EEPROM Checksum : 0x%04x\n", csum_old); + printk(KERN_ERR "Calculated : 0x%04x\n", csum_new); + + printk(KERN_ERR "Offset Values\n"); + printk(KERN_ERR "======== ======\n"); + print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0); + + printk(KERN_ERR "Include this output when contacting your support " + "provider.\n"); + printk(KERN_ERR "This is not a software error! Something bad " + "happened to your hardware or\n"); + printk(KERN_ERR "EEPROM image. Ignoring this " + "problem could result in further problems,\n"); + printk(KERN_ERR "possibly loss of data, corruption or system hangs!\n"); + printk(KERN_ERR "The MAC Address will be reset to 00:00:00:00:00:00, " + "which is invalid\n"); + printk(KERN_ERR "and requires you to set the proper MAC " + "address manually before continuing\n"); + printk(KERN_ERR "to enable this network device.\n"); + printk(KERN_ERR "Please inspect the EEPROM dump and report the issue " + "to your hardware vendor\n"); + printk(KERN_ERR "or Intel Customer Support.\n"); + printk(KERN_ERR "/*********************/\n"); + + kfree(data); +} + +/** + * e1000_is_need_ioport - determine if an adapter needs ioport resources or not + * @pdev: PCI device information struct + * + * Return true if an adapter needs ioport resources + **/ +static int e1000_is_need_ioport(struct pci_dev *pdev) +{ + switch (pdev->device) { + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541ER_LOM: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + return true; + default: + return false; + } +} + +static const struct net_device_ops e1000_netdev_ops = { + .ndo_open = e1000_open, + .ndo_stop = e1000_close, + .ndo_start_xmit = e1000_xmit_frame, + .ndo_get_stats = e1000_get_stats, + .ndo_set_rx_mode = e1000_set_rx_mode, + .ndo_set_mac_address = e1000_set_mac, + .ndo_tx_timeout = e1000_tx_timeout, + .ndo_change_mtu = e1000_change_mtu, + .ndo_do_ioctl = e1000_ioctl, + .ndo_validate_addr = eth_validate_addr, + + .ndo_vlan_rx_register = e1000_vlan_rx_register, + .ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = e1000_netpoll, +#endif +}; + +/** + * e1000_probe - Device Initialization Routine + * @pdev: PCI device information struct + * @ent: entry in e1000_pci_tbl + * + * Returns 0 on success, negative on failure + * + * e1000_probe initializes an adapter identified by a pci_dev structure. + * The OS initialization, configuring of the adapter private structure, + * and a hardware reset occur. + **/ +static int __devinit e1000_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *netdev; + struct e1000_adapter *adapter; + struct e1000_hw *hw; + + static int cards_found = 0; + static int global_quad_port_a = 0; /* global ksp3 port a indication */ + int i, err, pci_using_dac; + u16 eeprom_data = 0; + u16 eeprom_apme_mask = E1000_EEPROM_APME; + int bars, need_ioport; + + /* do not allocate ioport bars when not needed */ + need_ioport = e1000_is_need_ioport(pdev); + if (need_ioport) { + bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO); + err = pci_enable_device(pdev); + } else { + bars = pci_select_bars(pdev, IORESOURCE_MEM); + err = pci_enable_device_mem(pdev); + } + if (err) + return err; + + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && + !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { + pci_using_dac = 1; + } else { + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); + if (err) { + E1000_ERR("No usable DMA configuration, " + "aborting\n"); + goto err_dma; + } + } + pci_using_dac = 0; + } + + err = pci_request_selected_regions(pdev, bars, e1000_driver_name); + if (err) + goto err_pci_reg; + + pci_set_master(pdev); + + err = -ENOMEM; + netdev = alloc_etherdev(sizeof(struct e1000_adapter)); + if (!netdev) + goto err_alloc_etherdev; + + SET_NETDEV_DEV(netdev, &pdev->dev); + + pci_set_drvdata(pdev, netdev); + adapter = netdev_priv(netdev); + adapter->netdev = netdev; + adapter->pdev = pdev; + adapter->msg_enable = (1 << debug) - 1; + adapter->bars = bars; + adapter->need_ioport = need_ioport; + + hw = &adapter->hw; + hw->back = adapter; + + err = -EIO; + hw->hw_addr = pci_ioremap_bar(pdev, BAR_0); + if (!hw->hw_addr) + goto err_ioremap; + + if (adapter->need_ioport) { + for (i = BAR_1; i <= BAR_5; i++) { + if (pci_resource_len(pdev, i) == 0) + continue; + if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { + hw->io_base = pci_resource_start(pdev, i); + break; + } + } + } + + netdev->netdev_ops = &e1000_netdev_ops; + e1000_set_ethtool_ops(netdev); + netdev->watchdog_timeo = 5 * HZ; + netif_napi_add(netdev, &adapter->napi, e1000_clean, 64); + + strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); + + adapter->bd_number = cards_found; + + /* setup the private structure */ + + err = e1000_sw_init(adapter); + if (err) + goto err_sw_init; + + err = -EIO; + + if (hw->mac_type >= e1000_82543) { + netdev->features = NETIF_F_SG | + NETIF_F_HW_CSUM | + NETIF_F_HW_VLAN_TX | + NETIF_F_HW_VLAN_RX | + NETIF_F_HW_VLAN_FILTER; + } + + if ((hw->mac_type >= e1000_82544) && + (hw->mac_type != e1000_82547)) + netdev->features |= NETIF_F_TSO; + + if (pci_using_dac) + netdev->features |= NETIF_F_HIGHDMA; + + netdev->vlan_features |= NETIF_F_TSO; + netdev->vlan_features |= NETIF_F_HW_CSUM; + netdev->vlan_features |= NETIF_F_SG; + + adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw); + + /* initialize eeprom parameters */ + if (e1000_init_eeprom_params(hw)) { + E1000_ERR("EEPROM initialization failed\n"); + goto err_eeprom; + } + + /* before reading the EEPROM, reset the controller to + * put the device in a known good starting state */ + + e1000_reset_hw(hw); + + /* make sure the EEPROM is good */ + if (e1000_validate_eeprom_checksum(hw) < 0) { + DPRINTK(PROBE, ERR, "The EEPROM Checksum Is Not Valid\n"); + e1000_dump_eeprom(adapter); + /* + * set MAC address to all zeroes to invalidate and temporary + * disable this device for the user. This blocks regular + * traffic while still permitting ethtool ioctls from reaching + * the hardware as well as allowing the user to run the + * interface after manually setting a hw addr using + * `ip set address` + */ + memset(hw->mac_addr, 0, netdev->addr_len); + } else { + /* copy the MAC address out of the EEPROM */ + if (e1000_read_mac_addr(hw)) + DPRINTK(PROBE, ERR, "EEPROM Read Error\n"); + } + /* don't block initalization here due to bad MAC address */ + memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len); + memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len); + + if (!is_valid_ether_addr(netdev->perm_addr)) + DPRINTK(PROBE, ERR, "Invalid MAC Address\n"); + + e1000_get_bus_info(hw); + + init_timer(&adapter->tx_fifo_stall_timer); + adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall; + adapter->tx_fifo_stall_timer.data = (unsigned long)adapter; + + init_timer(&adapter->watchdog_timer); + adapter->watchdog_timer.function = &e1000_watchdog; + adapter->watchdog_timer.data = (unsigned long) adapter; + + init_timer(&adapter->phy_info_timer); + adapter->phy_info_timer.function = &e1000_update_phy_info; + adapter->phy_info_timer.data = (unsigned long)adapter; + + INIT_WORK(&adapter->reset_task, e1000_reset_task); + + e1000_check_options(adapter); + + /* Initial Wake on LAN setting + * If APM wake is enabled in the EEPROM, + * enable the ACPI Magic Packet filter + */ + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + case e1000_82543: + break; + case e1000_82544: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data); + eeprom_apme_mask = E1000_EEPROM_82544_APM; + break; + case e1000_82546: + case e1000_82546_rev_3: + if (er32(STATUS) & E1000_STATUS_FUNC_1){ + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data); + break; + } + /* Fall Through */ + default: + e1000_read_eeprom(hw, + EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data); + break; + } + if (eeprom_data & eeprom_apme_mask) + adapter->eeprom_wol |= E1000_WUFC_MAG; + + /* now that we have the eeprom settings, apply the special cases + * where the eeprom may be wrong or the board simply won't support + * wake on lan on a particular port */ + switch (pdev->device) { + case E1000_DEV_ID_82546GB_PCIE: + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + /* Wake events only supported on port A for dual fiber + * regardless of eeprom setting */ + if (er32(STATUS) & E1000_STATUS_FUNC_1) + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + /* if quad port adapter, disable WoL on all but port A */ + if (global_quad_port_a != 0) + adapter->eeprom_wol = 0; + else + adapter->quad_port_a = 1; + /* Reset for multiple quad port adapters */ + if (++global_quad_port_a == 4) + global_quad_port_a = 0; + break; + } + + /* initialize the wol settings based on the eeprom settings */ + adapter->wol = adapter->eeprom_wol; + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + + /* print bus type/speed/width info */ + DPRINTK(PROBE, INFO, "(PCI%s:%s:%s) ", + ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""), + ((hw->bus_speed == e1000_bus_speed_133) ? "133MHz" : + (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" : + (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" : + (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"), + ((hw->bus_width == e1000_bus_width_64) ? "64-bit" : "32-bit")); + + printk("%pM\n", netdev->dev_addr); + + /* reset the hardware with the new settings */ + e1000_reset(adapter); + + strcpy(netdev->name, "eth%d"); + err = register_netdev(netdev); + if (err) + goto err_register; + + /* carrier off reporting is important to ethtool even BEFORE open */ + netif_carrier_off(netdev); + + DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n"); + + cards_found++; + return 0; + +err_register: +err_eeprom: + e1000_phy_hw_reset(hw); + + if (hw->flash_address) + iounmap(hw->flash_address); + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); +err_sw_init: + iounmap(hw->hw_addr); +err_ioremap: + free_netdev(netdev); +err_alloc_etherdev: + pci_release_selected_regions(pdev, bars); +err_pci_reg: +err_dma: + pci_disable_device(pdev); + return err; +} + +/** + * e1000_remove - Device Removal Routine + * @pdev: PCI device information struct + * + * e1000_remove is called by the PCI subsystem to alert the driver + * that it should release a PCI device. The could be caused by a + * Hot-Plug event, or because the driver is going to be removed from + * memory. + **/ + +static void __devexit e1000_remove(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + set_bit(__E1000_DOWN, &adapter->flags); + del_timer_sync(&adapter->tx_fifo_stall_timer); + del_timer_sync(&adapter->watchdog_timer); + del_timer_sync(&adapter->phy_info_timer); + + cancel_work_sync(&adapter->reset_task); + + e1000_release_manageability(adapter); + + unregister_netdev(netdev); + + e1000_phy_hw_reset(hw); + + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); + + iounmap(hw->hw_addr); + if (hw->flash_address) + iounmap(hw->flash_address); + pci_release_selected_regions(pdev, adapter->bars); + + free_netdev(netdev); + + pci_disable_device(pdev); +} + +/** + * e1000_sw_init - Initialize general software structures (struct e1000_adapter) + * @adapter: board private structure to initialize + * + * e1000_sw_init initializes the Adapter private data structure. + * Fields are initialized based on PCI device information and + * OS network device settings (MTU size). + **/ + +static int __devinit e1000_sw_init(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + + /* PCI config space info */ + + hw->vendor_id = pdev->vendor; + hw->device_id = pdev->device; + hw->subsystem_vendor_id = pdev->subsystem_vendor; + hw->subsystem_id = pdev->subsystem_device; + hw->revision_id = pdev->revision; + + pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word); + + adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; + hw->max_frame_size = netdev->mtu + + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE; + hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE; + + /* identify the MAC */ + + if (e1000_set_mac_type(hw)) { + DPRINTK(PROBE, ERR, "Unknown MAC Type\n"); + return -EIO; + } + + switch (hw->mac_type) { + default: + break; + case e1000_82541: + case e1000_82547: + case e1000_82541_rev_2: + case e1000_82547_rev_2: + hw->phy_init_script = 1; + break; + } + + e1000_set_media_type(hw); + + hw->wait_autoneg_complete = false; + hw->tbi_compatibility_en = true; + hw->adaptive_ifs = true; + + /* Copper options */ + + if (hw->media_type == e1000_media_type_copper) { + hw->mdix = AUTO_ALL_MODES; + hw->disable_polarity_correction = false; + hw->master_slave = E1000_MASTER_SLAVE; + } + + adapter->num_tx_queues = 1; + adapter->num_rx_queues = 1; + + if (e1000_alloc_queues(adapter)) { + DPRINTK(PROBE, ERR, "Unable to allocate memory for queues\n"); + return -ENOMEM; + } + + /* Explicitly disable IRQ since the NIC can be in any state. */ + e1000_irq_disable(adapter); + + spin_lock_init(&adapter->stats_lock); + + set_bit(__E1000_DOWN, &adapter->flags); + + return 0; +} + +/** + * e1000_alloc_queues - Allocate memory for all rings + * @adapter: board private structure to initialize + * + * We allocate one ring per queue at run-time since we don't know the + * number of queues at compile-time. + **/ + +static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter) +{ + adapter->tx_ring = kcalloc(adapter->num_tx_queues, + sizeof(struct e1000_tx_ring), GFP_KERNEL); + if (!adapter->tx_ring) + return -ENOMEM; + + adapter->rx_ring = kcalloc(adapter->num_rx_queues, + sizeof(struct e1000_rx_ring), GFP_KERNEL); + if (!adapter->rx_ring) { + kfree(adapter->tx_ring); + return -ENOMEM; + } + + return E1000_SUCCESS; +} + +/** + * e1000_open - Called when a network interface is made active + * @netdev: network interface device structure + * + * Returns 0 on success, negative value on failure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). At this point all resources needed + * for transmit and receive operations are allocated, the interrupt + * handler is registered with the OS, the watchdog timer is started, + * and the stack is notified that the interface is ready. + **/ + +static int e1000_open(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int err; + + /* disallow open during test */ + if (test_bit(__E1000_TESTING, &adapter->flags)) + return -EBUSY; + + netif_carrier_off(netdev); + + /* allocate transmit descriptors */ + err = e1000_setup_all_tx_resources(adapter); + if (err) + goto err_setup_tx; + + /* allocate receive descriptors */ + err = e1000_setup_all_rx_resources(adapter); + if (err) + goto err_setup_rx; + + e1000_power_up_phy(adapter); + + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) { + e1000_update_mng_vlan(adapter); + } + + /* before we allocate an interrupt, we must be ready to handle it. + * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt + * as soon as we call pci_request_irq, so we have to setup our + * clean_rx handler before we do so. */ + e1000_configure(adapter); + + err = e1000_request_irq(adapter); + if (err) + goto err_req_irq; + + /* From here on the code is the same as e1000_up() */ + clear_bit(__E1000_DOWN, &adapter->flags); + + napi_enable(&adapter->napi); + + e1000_irq_enable(adapter); + + netif_start_queue(netdev); + + /* fire a link status change interrupt to start the watchdog */ + ew32(ICS, E1000_ICS_LSC); + + return E1000_SUCCESS; + +err_req_irq: + e1000_power_down_phy(adapter); + e1000_free_all_rx_resources(adapter); +err_setup_rx: + e1000_free_all_tx_resources(adapter); +err_setup_tx: + e1000_reset(adapter); + + return err; +} + +/** + * e1000_close - Disables a network interface + * @netdev: network interface device structure + * + * Returns 0, this is not allowed to fail + * + * The close entry point is called when an interface is de-activated + * by the OS. The hardware is still under the drivers control, but + * needs to be disabled. A global MAC reset is issued to stop the + * hardware, and all transmit and receive resources are freed. + **/ + +static int e1000_close(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); + e1000_down(adapter); + e1000_power_down_phy(adapter); + e1000_free_irq(adapter); + + e1000_free_all_tx_resources(adapter); + e1000_free_all_rx_resources(adapter); + + /* kill manageability vlan ID if supported, but not if a vlan with + * the same ID is registered on the host OS (let 8021q kill it) */ + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + !(adapter->vlgrp && + vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) { + e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); + } + + return 0; +} + +/** + * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary + * @adapter: address of board private structure + * @start: address of beginning of memory + * @len: length of memory + **/ +static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start, + unsigned long len) +{ + struct e1000_hw *hw = &adapter->hw; + unsigned long begin = (unsigned long)start; + unsigned long end = begin + len; + + /* First rev 82545 and 82546 need to not allow any memory + * write location to cross 64k boundary due to errata 23 */ + if (hw->mac_type == e1000_82545 || + hw->mac_type == e1000_82546) { + return ((begin ^ (end - 1)) >> 16) != 0 ? false : true; + } + + return true; +} + +/** + * e1000_setup_tx_resources - allocate Tx resources (Descriptors) + * @adapter: board private structure + * @txdr: tx descriptor ring (for a specific queue) to setup + * + * Return 0 on success, negative on failure + **/ + +static int e1000_setup_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *txdr) +{ + struct pci_dev *pdev = adapter->pdev; + int size; + + size = sizeof(struct e1000_buffer) * txdr->count; + txdr->buffer_info = vmalloc(size); + if (!txdr->buffer_info) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the transmit descriptor ring\n"); + return -ENOMEM; + } + memset(txdr->buffer_info, 0, size); + + /* round up to nearest 4K */ + + txdr->size = txdr->count * sizeof(struct e1000_tx_desc); + txdr->size = ALIGN(txdr->size, 4096); + + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + if (!txdr->desc) { +setup_tx_desc_die: + vfree(txdr->buffer_info); + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the transmit descriptor ring\n"); + return -ENOMEM; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { + void *olddesc = txdr->desc; + dma_addr_t olddma = txdr->dma; + DPRINTK(TX_ERR, ERR, "txdr align check failed: %u bytes " + "at %p\n", txdr->size, txdr->desc); + /* Try again, without freeing the previous */ + txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + /* Failed allocation, critical failure */ + if (!txdr->desc) { + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + goto setup_tx_desc_die; + } + + if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { + /* give up */ + pci_free_consistent(pdev, txdr->size, txdr->desc, + txdr->dma); + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate aligned memory " + "for the transmit descriptor ring\n"); + vfree(txdr->buffer_info); + return -ENOMEM; + } else { + /* Free old allocation, new allocation was successful */ + pci_free_consistent(pdev, txdr->size, olddesc, olddma); + } + } + memset(txdr->desc, 0, txdr->size); + + txdr->next_to_use = 0; + txdr->next_to_clean = 0; + + return 0; +} + +/** + * e1000_setup_all_tx_resources - wrapper to allocate Tx resources + * (Descriptors) for all queues + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ + +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_tx_queues; i++) { + err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]); + if (err) { + DPRINTK(PROBE, ERR, + "Allocation for Tx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_tx_resources(adapter, + &adapter->tx_ring[i]); + break; + } + } + + return err; +} + +/** + * e1000_configure_tx - Configure 8254x Transmit Unit after Reset + * @adapter: board private structure + * + * Configure the Tx unit of the MAC after a reset. + **/ + +static void e1000_configure_tx(struct e1000_adapter *adapter) +{ + u64 tdba; + struct e1000_hw *hw = &adapter->hw; + u32 tdlen, tctl, tipg; + u32 ipgr1, ipgr2; + + /* Setup the HW Tx Head and Tail descriptor pointers */ + + switch (adapter->num_tx_queues) { + case 1: + default: + tdba = adapter->tx_ring[0].dma; + tdlen = adapter->tx_ring[0].count * + sizeof(struct e1000_tx_desc); + ew32(TDLEN, tdlen); + ew32(TDBAH, (tdba >> 32)); + ew32(TDBAL, (tdba & 0x00000000ffffffffULL)); + ew32(TDT, 0); + ew32(TDH, 0); + adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH); + adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT); + break; + } + + /* Set the default values for the Tx Inter Packet Gap timer */ + if ((hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes)) + tipg = DEFAULT_82543_TIPG_IPGT_FIBER; + else + tipg = DEFAULT_82543_TIPG_IPGT_COPPER; + + switch (hw->mac_type) { + case e1000_82542_rev2_0: + case e1000_82542_rev2_1: + tipg = DEFAULT_82542_TIPG_IPGT; + ipgr1 = DEFAULT_82542_TIPG_IPGR1; + ipgr2 = DEFAULT_82542_TIPG_IPGR2; + break; + default: + ipgr1 = DEFAULT_82543_TIPG_IPGR1; + ipgr2 = DEFAULT_82543_TIPG_IPGR2; + break; + } + tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT; + tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT; + ew32(TIPG, tipg); + + /* Set the Tx Interrupt Delay register */ + + ew32(TIDV, adapter->tx_int_delay); + if (hw->mac_type >= e1000_82540) + ew32(TADV, adapter->tx_abs_int_delay); + + /* Program the Transmit Control Register */ + + tctl = er32(TCTL); + tctl &= ~E1000_TCTL_CT; + tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | + (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); + + e1000_config_collision_dist(hw); + + /* Setup Transmit Descriptor Settings for eop descriptor */ + adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS; + + /* only set IDE if we are delaying interrupts using the timers */ + if (adapter->tx_int_delay) + adapter->txd_cmd |= E1000_TXD_CMD_IDE; + + if (hw->mac_type < e1000_82543) + adapter->txd_cmd |= E1000_TXD_CMD_RPS; + else + adapter->txd_cmd |= E1000_TXD_CMD_RS; + + /* Cache if we're 82544 running in PCI-X because we'll + * need this to apply a workaround later in the send path. */ + if (hw->mac_type == e1000_82544 && + hw->bus_type == e1000_bus_type_pcix) + adapter->pcix_82544 = 1; + + ew32(TCTL, tctl); + +} + +/** + * e1000_setup_rx_resources - allocate Rx resources (Descriptors) + * @adapter: board private structure + * @rxdr: rx descriptor ring (for a specific queue) to setup + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_setup_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rxdr) +{ + struct pci_dev *pdev = adapter->pdev; + int size, desc_len; + + size = sizeof(struct e1000_buffer) * rxdr->count; + rxdr->buffer_info = vmalloc(size); + if (!rxdr->buffer_info) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the receive descriptor ring\n"); + return -ENOMEM; + } + memset(rxdr->buffer_info, 0, size); + + desc_len = sizeof(struct e1000_rx_desc); + + /* Round up to nearest 4K */ + + rxdr->size = rxdr->count * desc_len; + rxdr->size = ALIGN(rxdr->size, 4096); + + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + + if (!rxdr->desc) { + DPRINTK(PROBE, ERR, + "Unable to allocate memory for the receive descriptor ring\n"); +setup_rx_desc_die: + vfree(rxdr->buffer_info); + return -ENOMEM; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { + void *olddesc = rxdr->desc; + dma_addr_t olddma = rxdr->dma; + DPRINTK(RX_ERR, ERR, "rxdr align check failed: %u bytes " + "at %p\n", rxdr->size, rxdr->desc); + /* Try again, without freeing the previous */ + rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + /* Failed allocation, critical failure */ + if (!rxdr->desc) { + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate memory " + "for the receive descriptor ring\n"); + goto setup_rx_desc_die; + } + + if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { + /* give up */ + pci_free_consistent(pdev, rxdr->size, rxdr->desc, + rxdr->dma); + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + DPRINTK(PROBE, ERR, + "Unable to allocate aligned memory " + "for the receive descriptor ring\n"); + goto setup_rx_desc_die; + } else { + /* Free old allocation, new allocation was successful */ + pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + } + } + memset(rxdr->desc, 0, rxdr->size); + + rxdr->next_to_clean = 0; + rxdr->next_to_use = 0; + rxdr->rx_skb_top = NULL; + + return 0; +} + +/** + * e1000_setup_all_rx_resources - wrapper to allocate Rx resources + * (Descriptors) for all queues + * @adapter: board private structure + * + * Return 0 on success, negative on failure + **/ + +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter) +{ + int i, err = 0; + + for (i = 0; i < adapter->num_rx_queues; i++) { + err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]); + if (err) { + DPRINTK(PROBE, ERR, + "Allocation for Rx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_rx_resources(adapter, + &adapter->rx_ring[i]); + break; + } + } + + return err; +} + +/** + * e1000_setup_rctl - configure the receive control registers + * @adapter: Board private structure + **/ +static void e1000_setup_rctl(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u32 rctl; + + rctl = er32(RCTL); + + rctl &= ~(3 << E1000_RCTL_MO_SHIFT); + + rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | + E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); + + if (hw->tbi_compatibility_on == 1) + rctl |= E1000_RCTL_SBP; + else + rctl &= ~E1000_RCTL_SBP; + + if (adapter->netdev->mtu <= ETH_DATA_LEN) + rctl &= ~E1000_RCTL_LPE; + else + rctl |= E1000_RCTL_LPE; + + /* Setup buffer sizes */ + rctl &= ~E1000_RCTL_SZ_4096; + rctl |= E1000_RCTL_BSEX; + switch (adapter->rx_buffer_len) { + case E1000_RXBUFFER_2048: + default: + rctl |= E1000_RCTL_SZ_2048; + rctl &= ~E1000_RCTL_BSEX; + break; + case E1000_RXBUFFER_4096: + rctl |= E1000_RCTL_SZ_4096; + break; + case E1000_RXBUFFER_8192: + rctl |= E1000_RCTL_SZ_8192; + break; + case E1000_RXBUFFER_16384: + rctl |= E1000_RCTL_SZ_16384; + break; + } + + ew32(RCTL, rctl); +} + +/** + * e1000_configure_rx - Configure 8254x Receive Unit after Reset + * @adapter: board private structure + * + * Configure the Rx unit of the MAC after a reset. + **/ + +static void e1000_configure_rx(struct e1000_adapter *adapter) +{ + u64 rdba; + struct e1000_hw *hw = &adapter->hw; + u32 rdlen, rctl, rxcsum; + + if (adapter->netdev->mtu > ETH_DATA_LEN) { + rdlen = adapter->rx_ring[0].count * + sizeof(struct e1000_rx_desc); + adapter->clean_rx = e1000_clean_jumbo_rx_irq; + adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers; + } else { + rdlen = adapter->rx_ring[0].count * + sizeof(struct e1000_rx_desc); + adapter->clean_rx = e1000_clean_rx_irq; + adapter->alloc_rx_buf = e1000_alloc_rx_buffers; + } + + /* disable receives while setting up the descriptors */ + rctl = er32(RCTL); + ew32(RCTL, rctl & ~E1000_RCTL_EN); + + /* set the Receive Delay Timer Register */ + ew32(RDTR, adapter->rx_int_delay); + + if (hw->mac_type >= e1000_82540) { + ew32(RADV, adapter->rx_abs_int_delay); + if (adapter->itr_setting != 0) + ew32(ITR, 1000000000 / (adapter->itr * 256)); + } + + /* Setup the HW Rx Head and Tail Descriptor Pointers and + * the Base and Length of the Rx Descriptor Ring */ + switch (adapter->num_rx_queues) { + case 1: + default: + rdba = adapter->rx_ring[0].dma; + ew32(RDLEN, rdlen); + ew32(RDBAH, (rdba >> 32)); + ew32(RDBAL, (rdba & 0x00000000ffffffffULL)); + ew32(RDT, 0); + ew32(RDH, 0); + adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH); + adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT); + break; + } + + /* Enable 82543 Receive Checksum Offload for TCP and UDP */ + if (hw->mac_type >= e1000_82543) { + rxcsum = er32(RXCSUM); + if (adapter->rx_csum) + rxcsum |= E1000_RXCSUM_TUOFL; + else + /* don't need to clear IPPCSE as it defaults to 0 */ + rxcsum &= ~E1000_RXCSUM_TUOFL; + ew32(RXCSUM, rxcsum); + } + + /* Enable Receives */ + ew32(RCTL, rctl); +} + +/** + * e1000_free_tx_resources - Free Tx Resources per Queue + * @adapter: board private structure + * @tx_ring: Tx descriptor ring for a specific queue + * + * Free all transmit software resources + **/ + +static void e1000_free_tx_resources(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct pci_dev *pdev = adapter->pdev; + + e1000_clean_tx_ring(adapter, tx_ring); + + vfree(tx_ring->buffer_info); + tx_ring->buffer_info = NULL; + + pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma); + + tx_ring->desc = NULL; +} + +/** + * e1000_free_all_tx_resources - Free Tx Resources for All Queues + * @adapter: board private structure + * + * Free all transmit software resources + **/ + +void e1000_free_all_tx_resources(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + e1000_free_tx_resources(adapter, &adapter->tx_ring[i]); +} + +static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter, + struct e1000_buffer *buffer_info) +{ + if (buffer_info->dma) { + if (buffer_info->mapped_as_page) + pci_unmap_page(adapter->pdev, buffer_info->dma, + buffer_info->length, PCI_DMA_TODEVICE); + else + pci_unmap_single(adapter->pdev, buffer_info->dma, + buffer_info->length, + PCI_DMA_TODEVICE); + buffer_info->dma = 0; + } + if (buffer_info->skb) { + dev_kfree_skb_any(buffer_info->skb); + buffer_info->skb = NULL; + } + buffer_info->time_stamp = 0; + /* buffer_info must be completely set up in the transmit path */ +} + +/** + * e1000_clean_tx_ring - Free Tx Buffers + * @adapter: board private structure + * @tx_ring: ring to be cleaned + **/ + +static void e1000_clean_tx_ring(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_buffer *buffer_info; + unsigned long size; + unsigned int i; + + /* Free all the Tx ring sk_buffs */ + + for (i = 0; i < tx_ring->count; i++) { + buffer_info = &tx_ring->buffer_info[i]; + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + } + + size = sizeof(struct e1000_buffer) * tx_ring->count; + memset(tx_ring->buffer_info, 0, size); + + /* Zero out the descriptor ring */ + + memset(tx_ring->desc, 0, tx_ring->size); + + tx_ring->next_to_use = 0; + tx_ring->next_to_clean = 0; + tx_ring->last_tx_tso = 0; + + writel(0, hw->hw_addr + tx_ring->tdh); + writel(0, hw->hw_addr + tx_ring->tdt); +} + +/** + * e1000_clean_all_tx_rings - Free Tx Buffers for all queues + * @adapter: board private structure + **/ + +static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_tx_queues; i++) + e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]); +} + +/** + * e1000_free_rx_resources - Free Rx Resources + * @adapter: board private structure + * @rx_ring: ring to clean the resources from + * + * Free all receive software resources + **/ + +static void e1000_free_rx_resources(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring) +{ + struct pci_dev *pdev = adapter->pdev; + + e1000_clean_rx_ring(adapter, rx_ring); + + vfree(rx_ring->buffer_info); + rx_ring->buffer_info = NULL; + + pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma); + + rx_ring->desc = NULL; +} + +/** + * e1000_free_all_rx_resources - Free Rx Resources for All Queues + * @adapter: board private structure + * + * Free all receive software resources + **/ + +void e1000_free_all_rx_resources(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + e1000_free_rx_resources(adapter, &adapter->rx_ring[i]); +} + +/** + * e1000_clean_rx_ring - Free Rx Buffers per Queue + * @adapter: board private structure + * @rx_ring: ring to free buffers from + **/ + +static void e1000_clean_rx_ring(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_buffer *buffer_info; + struct pci_dev *pdev = adapter->pdev; + unsigned long size; + unsigned int i; + + /* Free all the Rx ring sk_buffs */ + for (i = 0; i < rx_ring->count; i++) { + buffer_info = &rx_ring->buffer_info[i]; + if (buffer_info->dma && + adapter->clean_rx == e1000_clean_rx_irq) { + pci_unmap_single(pdev, buffer_info->dma, + buffer_info->length, + PCI_DMA_FROMDEVICE); + } else if (buffer_info->dma && + adapter->clean_rx == e1000_clean_jumbo_rx_irq) { + pci_unmap_page(pdev, buffer_info->dma, + buffer_info->length, + PCI_DMA_FROMDEVICE); + } + + buffer_info->dma = 0; + if (buffer_info->page) { + put_page(buffer_info->page); + buffer_info->page = NULL; + } + if (buffer_info->skb) { + dev_kfree_skb(buffer_info->skb); + buffer_info->skb = NULL; + } + } + + /* there also may be some cached data from a chained receive */ + if (rx_ring->rx_skb_top) { + dev_kfree_skb(rx_ring->rx_skb_top); + rx_ring->rx_skb_top = NULL; + } + + size = sizeof(struct e1000_buffer) * rx_ring->count; + memset(rx_ring->buffer_info, 0, size); + + /* Zero out the descriptor ring */ + memset(rx_ring->desc, 0, rx_ring->size); + + rx_ring->next_to_clean = 0; + rx_ring->next_to_use = 0; + + writel(0, hw->hw_addr + rx_ring->rdh); + writel(0, hw->hw_addr + rx_ring->rdt); +} + +/** + * e1000_clean_all_rx_rings - Free Rx Buffers for all queues + * @adapter: board private structure + **/ + +static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter) +{ + int i; + + for (i = 0; i < adapter->num_rx_queues; i++) + e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]); +} + +/* The 82542 2.0 (revision 2) needs to have the receive unit in reset + * and memory write and invalidate disabled for certain operations + */ +static void e1000_enter_82542_rst(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl; + + e1000_pci_clear_mwi(hw); + + rctl = er32(RCTL); + rctl |= E1000_RCTL_RST; + ew32(RCTL, rctl); + E1000_WRITE_FLUSH(); + mdelay(5); + + if (netif_running(netdev)) + e1000_clean_all_rx_rings(adapter); +} + +static void e1000_leave_82542_rst(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 rctl; + + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_RST; + ew32(RCTL, rctl); + E1000_WRITE_FLUSH(); + mdelay(5); + + if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) + e1000_pci_set_mwi(hw); + + if (netif_running(netdev)) { + /* No need to loop, because 82542 supports only 1 queue */ + struct e1000_rx_ring *ring = &adapter->rx_ring[0]; + e1000_configure_rx(adapter); + adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring)); + } +} + +/** + * e1000_set_mac - Change the Ethernet Address of the NIC + * @netdev: network interface device structure + * @p: pointer to an address structure + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_set_mac(struct net_device *netdev, void *p) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + /* 82542 2.0 needs to be in reset to write receive address registers */ + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_enter_82542_rst(adapter); + + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); + memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len); + + e1000_rar_set(hw, hw->mac_addr, 0); + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_leave_82542_rst(adapter); + + return 0; +} + +/** + * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set + * @netdev: network interface device structure + * + * The set_rx_mode entry point is called whenever the unicast or multicast + * address lists or the network interface flags are updated. This routine is + * responsible for configuring the hardware for proper unicast, multicast, + * promiscuous mode, and all-multi behavior. + **/ + +static void e1000_set_rx_mode(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct netdev_hw_addr *ha; + bool use_uc = false; + struct dev_addr_list *mc_ptr; + u32 rctl; + u32 hash_value; + int i, rar_entries = E1000_RAR_ENTRIES; + int mta_reg_count = E1000_NUM_MTA_REGISTERS; + u32 *mcarray = kcalloc(mta_reg_count, sizeof(u32), GFP_ATOMIC); + + if (!mcarray) { + DPRINTK(PROBE, ERR, "memory allocation failed\n"); + return; + } + + /* Check for Promiscuous and All Multicast modes */ + + rctl = er32(RCTL); + + if (netdev->flags & IFF_PROMISC) { + rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); + rctl &= ~E1000_RCTL_VFE; + } else { + if (netdev->flags & IFF_ALLMULTI) + rctl |= E1000_RCTL_MPE; + else + rctl &= ~E1000_RCTL_MPE; + /* Enable VLAN filter if there is a VLAN */ + if (adapter->vlgrp) + rctl |= E1000_RCTL_VFE; + } + + if (netdev->uc.count > rar_entries - 1) { + rctl |= E1000_RCTL_UPE; + } else if (!(netdev->flags & IFF_PROMISC)) { + rctl &= ~E1000_RCTL_UPE; + use_uc = true; + } + + ew32(RCTL, rctl); + + /* 82542 2.0 needs to be in reset to write receive address registers */ + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_enter_82542_rst(adapter); + + /* load the first 14 addresses into the exact filters 1-14. Unicast + * addresses take precedence to avoid disabling unicast filtering + * when possible. + * + * RAR 0 is used for the station MAC adddress + * if there are not 14 addresses, go ahead and clear the filters + */ + i = 1; + if (use_uc) + list_for_each_entry(ha, &netdev->uc.list, list) { + if (i == rar_entries) + break; + e1000_rar_set(hw, ha->addr, i++); + } + + WARN_ON(i == rar_entries); + + mc_ptr = netdev->mc_list; + + for (; i < rar_entries; i++) { + if (mc_ptr) { + e1000_rar_set(hw, mc_ptr->da_addr, i); + mc_ptr = mc_ptr->next; + } else { + E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0); + E1000_WRITE_FLUSH(); + E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0); + E1000_WRITE_FLUSH(); + } + } + + /* load any remaining addresses into the hash table */ + + for (; mc_ptr; mc_ptr = mc_ptr->next) { + u32 hash_reg, hash_bit, mta; + hash_value = e1000_hash_mc_addr(hw, mc_ptr->da_addr); + hash_reg = (hash_value >> 5) & 0x7F; + hash_bit = hash_value & 0x1F; + mta = (1 << hash_bit); + mcarray[hash_reg] |= mta; + } + + /* write the hash table completely, write from bottom to avoid + * both stupid write combining chipsets, and flushing each write */ + for (i = mta_reg_count - 1; i >= 0 ; i--) { + /* + * If we are on an 82544 has an errata where writing odd + * offsets overwrites the previous even offset, but writing + * backwards over the range solves the issue by always + * writing the odd offset first + */ + E1000_WRITE_REG_ARRAY(hw, MTA, i, mcarray[i]); + } + E1000_WRITE_FLUSH(); + + if (hw->mac_type == e1000_82542_rev2_0) + e1000_leave_82542_rst(adapter); + + kfree(mcarray); +} + +/* Need to wait a few seconds after link up to get diagnostic information from + * the phy */ + +static void e1000_update_phy_info(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + e1000_phy_get_info(hw, &adapter->phy_info); +} + +/** + * e1000_82547_tx_fifo_stall - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ + +static void e1000_82547_tx_fifo_stall(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + u32 tctl; + + if (atomic_read(&adapter->tx_fifo_stall)) { + if ((er32(TDT) == er32(TDH)) && + (er32(TDFT) == er32(TDFH)) && + (er32(TDFTS) == er32(TDFHS))) { + tctl = er32(TCTL); + ew32(TCTL, tctl & ~E1000_TCTL_EN); + ew32(TDFT, adapter->tx_head_addr); + ew32(TDFH, adapter->tx_head_addr); + ew32(TDFTS, adapter->tx_head_addr); + ew32(TDFHS, adapter->tx_head_addr); + ew32(TCTL, tctl); + E1000_WRITE_FLUSH(); + + adapter->tx_fifo_head = 0; + atomic_set(&adapter->tx_fifo_stall, 0); + netif_wake_queue(netdev); + } else if (!test_bit(__E1000_DOWN, &adapter->flags)) { + mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1); + } + } +} + +static bool e1000_has_link(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + bool link_active = false; + + /* get_link_status is set on LSC (link status) interrupt or + * rx sequence error interrupt. get_link_status will stay + * false until the e1000_check_for_link establishes link + * for copper adapters ONLY + */ + switch (hw->media_type) { + case e1000_media_type_copper: + if (hw->get_link_status) { + e1000_check_for_link(hw); + link_active = !hw->get_link_status; + } else { + link_active = true; + } + break; + case e1000_media_type_fiber: + e1000_check_for_link(hw); + link_active = !!(er32(STATUS) & E1000_STATUS_LU); + break; + case e1000_media_type_internal_serdes: + e1000_check_for_link(hw); + link_active = hw->serdes_has_link; + break; + default: + break; + } + + return link_active; +} + +/** + * e1000_watchdog - Timer Call-back + * @data: pointer to adapter cast into an unsigned long + **/ +static void e1000_watchdog(unsigned long data) +{ + struct e1000_adapter *adapter = (struct e1000_adapter *)data; + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct e1000_tx_ring *txdr = adapter->tx_ring; + u32 link, tctl; + + link = e1000_has_link(adapter); + if ((netif_carrier_ok(netdev)) && link) + goto link_up; + + if (link) { + if (!netif_carrier_ok(netdev)) { + u32 ctrl; + bool txb2b = true; + /* update snapshot of PHY registers on LSC */ + e1000_get_speed_and_duplex(hw, + &adapter->link_speed, + &adapter->link_duplex); + + ctrl = er32(CTRL); + printk(KERN_INFO "e1000: %s NIC Link is Up %d Mbps %s, " + "Flow Control: %s\n", + netdev->name, + adapter->link_speed, + adapter->link_duplex == FULL_DUPLEX ? + "Full Duplex" : "Half Duplex", + ((ctrl & E1000_CTRL_TFCE) && (ctrl & + E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl & + E1000_CTRL_RFCE) ? "RX" : ((ctrl & + E1000_CTRL_TFCE) ? "TX" : "None" ))); + + /* tweak tx_queue_len according to speed/duplex + * and adjust the timeout factor */ + netdev->tx_queue_len = adapter->tx_queue_len; + adapter->tx_timeout_factor = 1; + switch (adapter->link_speed) { + case SPEED_10: + txb2b = false; + netdev->tx_queue_len = 10; + adapter->tx_timeout_factor = 16; + break; + case SPEED_100: + txb2b = false; + netdev->tx_queue_len = 100; + /* maybe add some timeout factor ? */ + break; + } + + /* enable transmits in the hardware */ + tctl = er32(TCTL); + tctl |= E1000_TCTL_EN; + ew32(TCTL, tctl); + + netif_carrier_on(netdev); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->phy_info_timer, + round_jiffies(jiffies + 2 * HZ)); + adapter->smartspeed = 0; + } + } else { + if (netif_carrier_ok(netdev)) { + adapter->link_speed = 0; + adapter->link_duplex = 0; + printk(KERN_INFO "e1000: %s NIC Link is Down\n", + netdev->name); + netif_carrier_off(netdev); + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->phy_info_timer, + round_jiffies(jiffies + 2 * HZ)); + } + + e1000_smartspeed(adapter); + } + +link_up: + e1000_update_stats(adapter); + + hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old; + adapter->tpt_old = adapter->stats.tpt; + hw->collision_delta = adapter->stats.colc - adapter->colc_old; + adapter->colc_old = adapter->stats.colc; + + adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old; + adapter->gorcl_old = adapter->stats.gorcl; + adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old; + adapter->gotcl_old = adapter->stats.gotcl; + + e1000_update_adaptive(hw); + + if (!netif_carrier_ok(netdev)) { + if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) { + /* We've lost link, so the controller stops DMA, + * but we've got queued Tx work that's never going + * to get done, so reset controller to flush Tx. + * (Do the reset outside of interrupt context). */ + adapter->tx_timeout_count++; + schedule_work(&adapter->reset_task); + /* return immediately since reset is imminent */ + return; + } + } + + /* Cause software interrupt to ensure rx ring is cleaned */ + ew32(ICS, E1000_ICS_RXDMT0); + + /* Force detection of hung controller every watchdog period */ + adapter->detect_tx_hung = true; + + /* Reset the timer */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, + round_jiffies(jiffies + 2 * HZ)); +} + +enum latency_range { + lowest_latency = 0, + low_latency = 1, + bulk_latency = 2, + latency_invalid = 255 +}; + +/** + * e1000_update_itr - update the dynamic ITR value based on statistics + * @adapter: pointer to adapter + * @itr_setting: current adapter->itr + * @packets: the number of packets during this measurement interval + * @bytes: the number of bytes during this measurement interval + * + * Stores a new ITR value based on packets and byte + * counts during the last interrupt. The advantage of per interrupt + * computation is faster updates and more accurate ITR for the current + * traffic pattern. Constants in this function were computed + * based on theoretical maximum wire speed and thresholds were set based + * on testing data as well as attempting to minimize response time + * while increasing bulk throughput. + * this functionality is controlled by the InterruptThrottleRate module + * parameter (see e1000_param.c) + **/ +static unsigned int e1000_update_itr(struct e1000_adapter *adapter, + u16 itr_setting, int packets, int bytes) +{ + unsigned int retval = itr_setting; + struct e1000_hw *hw = &adapter->hw; + + if (unlikely(hw->mac_type < e1000_82540)) + goto update_itr_done; + + if (packets == 0) + goto update_itr_done; + + switch (itr_setting) { + case lowest_latency: + /* jumbo frames get bulk treatment*/ + if (bytes/packets > 8000) + retval = bulk_latency; + else if ((packets < 5) && (bytes > 512)) + retval = low_latency; + break; + case low_latency: /* 50 usec aka 20000 ints/s */ + if (bytes > 10000) { + /* jumbo frames need bulk latency setting */ + if (bytes/packets > 8000) + retval = bulk_latency; + else if ((packets < 10) || ((bytes/packets) > 1200)) + retval = bulk_latency; + else if ((packets > 35)) + retval = lowest_latency; + } else if (bytes/packets > 2000) + retval = bulk_latency; + else if (packets <= 2 && bytes < 512) + retval = lowest_latency; + break; + case bulk_latency: /* 250 usec aka 4000 ints/s */ + if (bytes > 25000) { + if (packets > 35) + retval = low_latency; + } else if (bytes < 6000) { + retval = low_latency; + } + break; + } + +update_itr_done: + return retval; +} + +static void e1000_set_itr(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 current_itr; + u32 new_itr = adapter->itr; + + if (unlikely(hw->mac_type < e1000_82540)) + return; + + /* for non-gigabit speeds, just fix the interrupt rate at 4000 */ + if (unlikely(adapter->link_speed != SPEED_1000)) { + current_itr = 0; + new_itr = 4000; + goto set_itr_now; + } + + adapter->tx_itr = e1000_update_itr(adapter, + adapter->tx_itr, + adapter->total_tx_packets, + adapter->total_tx_bytes); + /* conservative mode (itr 3) eliminates the lowest_latency setting */ + if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency) + adapter->tx_itr = low_latency; + + adapter->rx_itr = e1000_update_itr(adapter, + adapter->rx_itr, + adapter->total_rx_packets, + adapter->total_rx_bytes); + /* conservative mode (itr 3) eliminates the lowest_latency setting */ + if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency) + adapter->rx_itr = low_latency; + + current_itr = max(adapter->rx_itr, adapter->tx_itr); + + switch (current_itr) { + /* counts and packets in update_itr are dependent on these numbers */ + case lowest_latency: + new_itr = 70000; + break; + case low_latency: + new_itr = 20000; /* aka hwitr = ~200 */ + break; + case bulk_latency: + new_itr = 4000; + break; + default: + break; + } + +set_itr_now: + if (new_itr != adapter->itr) { + /* this attempts to bias the interrupt rate towards Bulk + * by adding intermediate steps when interrupt rate is + * increasing */ + new_itr = new_itr > adapter->itr ? + min(adapter->itr + (new_itr >> 2), new_itr) : + new_itr; + adapter->itr = new_itr; + ew32(ITR, 1000000000 / (new_itr * 256)); + } + + return; +} + +#define E1000_TX_FLAGS_CSUM 0x00000001 +#define E1000_TX_FLAGS_VLAN 0x00000002 +#define E1000_TX_FLAGS_TSO 0x00000004 +#define E1000_TX_FLAGS_IPV4 0x00000008 +#define E1000_TX_FLAGS_VLAN_MASK 0xffff0000 +#define E1000_TX_FLAGS_VLAN_SHIFT 16 + +static int e1000_tso(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, struct sk_buff *skb) +{ + struct e1000_context_desc *context_desc; + struct e1000_buffer *buffer_info; + unsigned int i; + u32 cmd_length = 0; + u16 ipcse = 0, tucse, mss; + u8 ipcss, ipcso, tucss, tucso, hdr_len; + int err; + + if (skb_is_gso(skb)) { + if (skb_header_cloned(skb)) { + err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + if (err) + return err; + } + + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + mss = skb_shinfo(skb)->gso_size; + if (skb->protocol == htons(ETH_P_IP)) { + struct iphdr *iph = ip_hdr(skb); + iph->tot_len = 0; + iph->check = 0; + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, + iph->daddr, 0, + IPPROTO_TCP, + 0); + cmd_length = E1000_TXD_CMD_IP; + ipcse = skb_transport_offset(skb) - 1; + } else if (skb->protocol == htons(ETH_P_IPV6)) { + ipv6_hdr(skb)->payload_len = 0; + tcp_hdr(skb)->check = + ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, + 0, IPPROTO_TCP, 0); + ipcse = 0; + } + ipcss = skb_network_offset(skb); + ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data; + tucss = skb_transport_offset(skb); + tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data; + tucse = 0; + + cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE | + E1000_TXD_CMD_TCP | (skb->len - (hdr_len))); + + i = tx_ring->next_to_use; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; + + context_desc->lower_setup.ip_fields.ipcss = ipcss; + context_desc->lower_setup.ip_fields.ipcso = ipcso; + context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse); + context_desc->upper_setup.tcp_fields.tucss = tucss; + context_desc->upper_setup.tcp_fields.tucso = tucso; + context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse); + context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss); + context_desc->tcp_seg_setup.fields.hdr_len = hdr_len; + context_desc->cmd_and_length = cpu_to_le32(cmd_length); + + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + if (++i == tx_ring->count) i = 0; + tx_ring->next_to_use = i; + + return true; + } + return false; +} + +static bool e1000_tx_csum(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, struct sk_buff *skb) +{ + struct e1000_context_desc *context_desc; + struct e1000_buffer *buffer_info; + unsigned int i; + u8 css; + u32 cmd_len = E1000_TXD_CMD_DEXT; + + if (skb->ip_summed != CHECKSUM_PARTIAL) + return false; + + switch (skb->protocol) { + case cpu_to_be16(ETH_P_IP): + if (ip_hdr(skb)->protocol == IPPROTO_TCP) + cmd_len |= E1000_TXD_CMD_TCP; + break; + case cpu_to_be16(ETH_P_IPV6): + /* XXX not handling all IPV6 headers */ + if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) + cmd_len |= E1000_TXD_CMD_TCP; + break; + default: + if (unlikely(net_ratelimit())) + DPRINTK(DRV, WARNING, + "checksum_partial proto=%x!\n", skb->protocol); + break; + } + + css = skb_transport_offset(skb); + + i = tx_ring->next_to_use; + buffer_info = &tx_ring->buffer_info[i]; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + + context_desc->lower_setup.ip_config = 0; + context_desc->upper_setup.tcp_fields.tucss = css; + context_desc->upper_setup.tcp_fields.tucso = + css + skb->csum_offset; + context_desc->upper_setup.tcp_fields.tucse = 0; + context_desc->tcp_seg_setup.data = 0; + context_desc->cmd_and_length = cpu_to_le32(cmd_len); + + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; + + if (unlikely(++i == tx_ring->count)) i = 0; + tx_ring->next_to_use = i; + + return true; +} + +#define E1000_MAX_TXD_PWR 12 +#define E1000_MAX_DATA_PER_TXD (1<hw; + struct pci_dev *pdev = adapter->pdev; + struct e1000_buffer *buffer_info; + unsigned int len = skb_headlen(skb); + unsigned int offset = 0, size, count = 0, i; + unsigned int f; + + i = tx_ring->next_to_use; + + while (len) { + buffer_info = &tx_ring->buffer_info[i]; + size = min(len, max_per_txd); + /* Workaround for Controller erratum -- + * descriptor for non-tso packet in a linear SKB that follows a + * tso gets written back prematurely before the data is fully + * DMA'd to the controller */ + if (!skb->data_len && tx_ring->last_tx_tso && + !skb_is_gso(skb)) { + tx_ring->last_tx_tso = 0; + size -= 4; + } + + /* Workaround for premature desc write-backs + * in TSO mode. Append 4-byte sentinel desc */ + if (unlikely(mss && !nr_frags && size == len && size > 8)) + size -= 4; + /* work-around for errata 10 and it applies + * to all controllers in PCI-X mode + * The fix is to make sure that the first descriptor of a + * packet is smaller than 2048 - 16 - 16 (or 2016) bytes + */ + if (unlikely((hw->bus_type == e1000_bus_type_pcix) && + (size > 2015) && count == 0)) + size = 2015; + + /* Workaround for potential 82544 hang in PCI-X. Avoid + * terminating buffers within evenly-aligned dwords. */ + if (unlikely(adapter->pcix_82544 && + !((unsigned long)(skb->data + offset + size - 1) & 4) && + size > 4)) + size -= 4; + + buffer_info->length = size; + /* set time_stamp *before* dma to help avoid a possible race */ + buffer_info->time_stamp = jiffies; + buffer_info->mapped_as_page = false; + buffer_info->dma = pci_map_single(pdev, skb->data + offset, + size, PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(pdev, buffer_info->dma)) + goto dma_error; + buffer_info->next_to_watch = i; + + len -= size; + offset += size; + count++; + if (len) { + i++; + if (unlikely(i == tx_ring->count)) + i = 0; + } + } + + for (f = 0; f < nr_frags; f++) { + struct skb_frag_struct *frag; + + frag = &skb_shinfo(skb)->frags[f]; + len = frag->size; + offset = frag->page_offset; + + while (len) { + i++; + if (unlikely(i == tx_ring->count)) + i = 0; + + buffer_info = &tx_ring->buffer_info[i]; + size = min(len, max_per_txd); + /* Workaround for premature desc write-backs + * in TSO mode. Append 4-byte sentinel desc */ + if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8)) + size -= 4; + /* Workaround for potential 82544 hang in PCI-X. + * Avoid terminating buffers within evenly-aligned + * dwords. */ + if (unlikely(adapter->pcix_82544 && + !((unsigned long)(page_to_phys(frag->page) + offset + + size - 1) & 4) && + size > 4)) + size -= 4; + + buffer_info->length = size; + buffer_info->time_stamp = jiffies; + buffer_info->mapped_as_page = true; + buffer_info->dma = pci_map_page(pdev, frag->page, + offset, size, + PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(pdev, buffer_info->dma)) + goto dma_error; + buffer_info->next_to_watch = i; + + len -= size; + offset += size; + count++; + } + } + + tx_ring->buffer_info[i].skb = skb; + tx_ring->buffer_info[first].next_to_watch = i; + + return count; + +dma_error: + dev_err(&pdev->dev, "TX DMA map failed\n"); + buffer_info->dma = 0; + if (count) + count--; + + while (count--) { + if (i==0) + i += tx_ring->count; + i--; + buffer_info = &tx_ring->buffer_info[i]; + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + } + + return 0; +} + +static void e1000_tx_queue(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring, int tx_flags, + int count) +{ + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_desc *tx_desc = NULL; + struct e1000_buffer *buffer_info; + u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS; + unsigned int i; + + if (likely(tx_flags & E1000_TX_FLAGS_TSO)) { + txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D | + E1000_TXD_CMD_TSE; + txd_upper |= E1000_TXD_POPTS_TXSM << 8; + + if (likely(tx_flags & E1000_TX_FLAGS_IPV4)) + txd_upper |= E1000_TXD_POPTS_IXSM << 8; + } + + if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) { + txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D; + txd_upper |= E1000_TXD_POPTS_TXSM << 8; + } + + if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) { + txd_lower |= E1000_TXD_CMD_VLE; + txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK); + } + + i = tx_ring->next_to_use; + + while (count--) { + buffer_info = &tx_ring->buffer_info[i]; + tx_desc = E1000_TX_DESC(*tx_ring, i); + tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + tx_desc->lower.data = + cpu_to_le32(txd_lower | buffer_info->length); + tx_desc->upper.data = cpu_to_le32(txd_upper); + if (unlikely(++i == tx_ring->count)) i = 0; + } + + tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + + tx_ring->next_to_use = i; + writel(i, hw->hw_addr + tx_ring->tdt); + /* we need this if more than one processor can write to our tail + * at a time, it syncronizes IO on IA64/Altix systems */ + mmiowb(); +} + +/** + * 82547 workaround to avoid controller hang in half-duplex environment. + * The workaround is to avoid queuing a large packet that would span + * the internal Tx FIFO ring boundary by notifying the stack to resend + * the packet at a later time. This gives the Tx FIFO an opportunity to + * flush all packets. When that occurs, we reset the Tx FIFO pointers + * to the beginning of the Tx FIFO. + **/ + +#define E1000_FIFO_HDR 0x10 +#define E1000_82547_PAD_LEN 0x3E0 + +static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, + struct sk_buff *skb) +{ + u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head; + u32 skb_fifo_len = skb->len + E1000_FIFO_HDR; + + skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR); + + if (adapter->link_duplex != HALF_DUPLEX) + goto no_fifo_stall_required; + + if (atomic_read(&adapter->tx_fifo_stall)) + return 1; + + if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) { + atomic_set(&adapter->tx_fifo_stall, 1); + return 1; + } + +no_fifo_stall_required: + adapter->tx_fifo_head += skb_fifo_len; + if (adapter->tx_fifo_head >= adapter->tx_fifo_size) + adapter->tx_fifo_head -= adapter->tx_fifo_size; + return 0; +} + +static int __e1000_maybe_stop_tx(struct net_device *netdev, int size) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + + netif_stop_queue(netdev); + /* Herbert's original patch had: + * smp_mb__after_netif_stop_queue(); + * but since that doesn't exist yet, just open code it. */ + smp_mb(); + + /* We need to check again in a case another CPU has just + * made room available. */ + if (likely(E1000_DESC_UNUSED(tx_ring) < size)) + return -EBUSY; + + /* A reprieve! */ + netif_start_queue(netdev); + ++adapter->restart_queue; + return 0; +} + +static int e1000_maybe_stop_tx(struct net_device *netdev, + struct e1000_tx_ring *tx_ring, int size) +{ + if (likely(E1000_DESC_UNUSED(tx_ring) >= size)) + return 0; + return __e1000_maybe_stop_tx(netdev, size); +} + +#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 ) +static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, + struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct e1000_tx_ring *tx_ring; + unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD; + unsigned int max_txd_pwr = E1000_MAX_TXD_PWR; + unsigned int tx_flags = 0; + unsigned int len = skb->len - skb->data_len; + unsigned int nr_frags; + unsigned int mss; + int count = 0; + int tso; + unsigned int f; + + /* This goes back to the question of how to logically map a tx queue + * to a flow. Right now, performance is impacted slightly negatively + * if using multiple tx queues. If the stack breaks away from a + * single qdisc implementation, we can look at this again. */ + tx_ring = adapter->tx_ring; + + if (unlikely(skb->len <= 0)) { + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + mss = skb_shinfo(skb)->gso_size; + /* The controller does a simple calculation to + * make sure there is enough room in the FIFO before + * initiating the DMA for each buffer. The calc is: + * 4 = ceil(buffer len/mss). To make sure we don't + * overrun the FIFO, adjust the max buffer len if mss + * drops. */ + if (mss) { + u8 hdr_len; + max_per_txd = min(mss << 2, max_per_txd); + max_txd_pwr = fls(max_per_txd) - 1; + + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + if (skb->data_len && hdr_len == len) { + switch (hw->mac_type) { + unsigned int pull_size; + case e1000_82544: + /* Make sure we have room to chop off 4 bytes, + * and that the end alignment will work out to + * this hardware's requirements + * NOTE: this is a TSO only workaround + * if end byte alignment not correct move us + * into the next dword */ + if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4) + break; + /* fall through */ + pull_size = min((unsigned int)4, skb->data_len); + if (!__pskb_pull_tail(skb, pull_size)) { + DPRINTK(DRV, ERR, + "__pskb_pull_tail failed.\n"); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + len = skb->len - skb->data_len; + break; + default: + /* do nothing */ + break; + } + } + } + + /* reserve a descriptor for the offload context */ + if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL)) + count++; + count++; + + /* Controller Erratum workaround */ + if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb)) + count++; + + count += TXD_USE_COUNT(len, max_txd_pwr); + + if (adapter->pcix_82544) + count++; + + /* work-around for errata 10 and it applies to all controllers + * in PCI-X mode, so add one more descriptor to the count + */ + if (unlikely((hw->bus_type == e1000_bus_type_pcix) && + (len > 2015))) + count++; + + nr_frags = skb_shinfo(skb)->nr_frags; + for (f = 0; f < nr_frags; f++) + count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size, + max_txd_pwr); + if (adapter->pcix_82544) + count += nr_frags; + + /* need: count + 2 desc gap to keep tail from touching + * head, otherwise try next time */ + if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2))) + return NETDEV_TX_BUSY; + + if (unlikely(hw->mac_type == e1000_82547)) { + if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) { + netif_stop_queue(netdev); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->tx_fifo_stall_timer, + jiffies + 1); + return NETDEV_TX_BUSY; + } + } + + if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) { + tx_flags |= E1000_TX_FLAGS_VLAN; + tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT); + } + + first = tx_ring->next_to_use; + + tso = e1000_tso(adapter, tx_ring, skb); + if (tso < 0) { + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + if (likely(tso)) { + if (likely(hw->mac_type != e1000_82544)) + tx_ring->last_tx_tso = 1; + tx_flags |= E1000_TX_FLAGS_TSO; + } else if (likely(e1000_tx_csum(adapter, tx_ring, skb))) + tx_flags |= E1000_TX_FLAGS_CSUM; + + if (likely(skb->protocol == htons(ETH_P_IP))) + tx_flags |= E1000_TX_FLAGS_IPV4; + + count = e1000_tx_map(adapter, tx_ring, skb, first, max_per_txd, + nr_frags, mss); + + if (count) { + e1000_tx_queue(adapter, tx_ring, tx_flags, count); + /* Make sure there is space in the ring for the next send. */ + e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2); + + } else { + dev_kfree_skb_any(skb); + tx_ring->buffer_info[first].time_stamp = 0; + tx_ring->next_to_use = first; + } + + return NETDEV_TX_OK; +} + +/** + * e1000_tx_timeout - Respond to a Tx Hang + * @netdev: network interface device structure + **/ + +static void e1000_tx_timeout(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + /* Do the reset outside of interrupt context */ + adapter->tx_timeout_count++; + schedule_work(&adapter->reset_task); +} + +static void e1000_reset_task(struct work_struct *work) +{ + struct e1000_adapter *adapter = + container_of(work, struct e1000_adapter, reset_task); + + e1000_reinit_locked(adapter); +} + +/** + * e1000_get_stats - Get System Network Statistics + * @netdev: network interface device structure + * + * Returns the address of the device statistics structure. + * The statistics are actually updated from the timer callback. + **/ + +static struct net_device_stats *e1000_get_stats(struct net_device *netdev) +{ + /* only return the current stats */ + return &netdev->stats; +} + +/** + * e1000_change_mtu - Change the Maximum Transfer Unit + * @netdev: network interface device structure + * @new_mtu: new value for maximum frame size + * + * Returns 0 on success, negative on failure + **/ + +static int e1000_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE; + + if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) || + (max_frame > MAX_JUMBO_FRAME_SIZE)) { + DPRINTK(PROBE, ERR, "Invalid MTU setting\n"); + return -EINVAL; + } + + /* Adapter-specific max frame size limits. */ + switch (hw->mac_type) { + case e1000_undefined ... e1000_82542_rev2_1: + if (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)) { + DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n"); + return -EINVAL; + } + break; + default: + /* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */ + break; + } + + while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) + msleep(1); + /* e1000_down has a dependency on max_frame_size */ + hw->max_frame_size = max_frame; + if (netif_running(netdev)) + e1000_down(adapter); + + /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN + * means we reserve 2 more, this pushes us to allocate from the next + * larger slab size. + * i.e. RXBUFFER_2048 --> size-4096 slab + * however with the new *_jumbo_rx* routines, jumbo receives will use + * fragmented skbs */ + + if (max_frame <= E1000_RXBUFFER_2048) + adapter->rx_buffer_len = E1000_RXBUFFER_2048; + else +#if (PAGE_SIZE >= E1000_RXBUFFER_16384) + adapter->rx_buffer_len = E1000_RXBUFFER_16384; +#elif (PAGE_SIZE >= E1000_RXBUFFER_4096) + adapter->rx_buffer_len = PAGE_SIZE; +#endif + + /* adjust allocation if LPE protects us, and we aren't using SBP */ + if (!hw->tbi_compatibility_on && + ((max_frame == (ETH_FRAME_LEN + ETH_FCS_LEN)) || + (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE))) + adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; + + printk(KERN_INFO "e1000: %s changing MTU from %d to %d\n", + netdev->name, netdev->mtu, new_mtu); + netdev->mtu = new_mtu; + + if (netif_running(netdev)) + e1000_up(adapter); + else + e1000_reset(adapter); + + clear_bit(__E1000_RESETTING, &adapter->flags); + + return 0; +} + +/** + * e1000_update_stats - Update the board statistics counters + * @adapter: board private structure + **/ + +void e1000_update_stats(struct e1000_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct e1000_hw *hw = &adapter->hw; + struct pci_dev *pdev = adapter->pdev; + unsigned long flags; + u16 phy_tmp; + +#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF + + /* + * Prevent stats update while adapter is being reset, or if the pci + * connection is down. + */ + if (adapter->link_speed == 0) + return; + if (pci_channel_offline(pdev)) + return; + + spin_lock_irqsave(&adapter->stats_lock, flags); + + /* these counters are modified from e1000_tbi_adjust_stats, + * called from the interrupt context, so they must only + * be written while holding adapter->stats_lock + */ + + adapter->stats.crcerrs += er32(CRCERRS); + adapter->stats.gprc += er32(GPRC); + adapter->stats.gorcl += er32(GORCL); + adapter->stats.gorch += er32(GORCH); + adapter->stats.bprc += er32(BPRC); + adapter->stats.mprc += er32(MPRC); + adapter->stats.roc += er32(ROC); + + adapter->stats.prc64 += er32(PRC64); + adapter->stats.prc127 += er32(PRC127); + adapter->stats.prc255 += er32(PRC255); + adapter->stats.prc511 += er32(PRC511); + adapter->stats.prc1023 += er32(PRC1023); + adapter->stats.prc1522 += er32(PRC1522); + + adapter->stats.symerrs += er32(SYMERRS); + adapter->stats.mpc += er32(MPC); + adapter->stats.scc += er32(SCC); + adapter->stats.ecol += er32(ECOL); + adapter->stats.mcc += er32(MCC); + adapter->stats.latecol += er32(LATECOL); + adapter->stats.dc += er32(DC); + adapter->stats.sec += er32(SEC); + adapter->stats.rlec += er32(RLEC); + adapter->stats.xonrxc += er32(XONRXC); + adapter->stats.xontxc += er32(XONTXC); + adapter->stats.xoffrxc += er32(XOFFRXC); + adapter->stats.xofftxc += er32(XOFFTXC); + adapter->stats.fcruc += er32(FCRUC); + adapter->stats.gptc += er32(GPTC); + adapter->stats.gotcl += er32(GOTCL); + adapter->stats.gotch += er32(GOTCH); + adapter->stats.rnbc += er32(RNBC); + adapter->stats.ruc += er32(RUC); + adapter->stats.rfc += er32(RFC); + adapter->stats.rjc += er32(RJC); + adapter->stats.torl += er32(TORL); + adapter->stats.torh += er32(TORH); + adapter->stats.totl += er32(TOTL); + adapter->stats.toth += er32(TOTH); + adapter->stats.tpr += er32(TPR); + + adapter->stats.ptc64 += er32(PTC64); + adapter->stats.ptc127 += er32(PTC127); + adapter->stats.ptc255 += er32(PTC255); + adapter->stats.ptc511 += er32(PTC511); + adapter->stats.ptc1023 += er32(PTC1023); + adapter->stats.ptc1522 += er32(PTC1522); + + adapter->stats.mptc += er32(MPTC); + adapter->stats.bptc += er32(BPTC); + + /* used for adaptive IFS */ + + hw->tx_packet_delta = er32(TPT); + adapter->stats.tpt += hw->tx_packet_delta; + hw->collision_delta = er32(COLC); + adapter->stats.colc += hw->collision_delta; + + if (hw->mac_type >= e1000_82543) { + adapter->stats.algnerrc += er32(ALGNERRC); + adapter->stats.rxerrc += er32(RXERRC); + adapter->stats.tncrs += er32(TNCRS); + adapter->stats.cexterr += er32(CEXTERR); + adapter->stats.tsctc += er32(TSCTC); + adapter->stats.tsctfc += er32(TSCTFC); + } + + /* Fill out the OS statistics structure */ + netdev->stats.multicast = adapter->stats.mprc; + netdev->stats.collisions = adapter->stats.colc; + + /* Rx Errors */ + + /* RLEC on some newer hardware can be incorrect so build + * our own version based on RUC and ROC */ + netdev->stats.rx_errors = adapter->stats.rxerrc + + adapter->stats.crcerrs + adapter->stats.algnerrc + + adapter->stats.ruc + adapter->stats.roc + + adapter->stats.cexterr; + adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc; + netdev->stats.rx_length_errors = adapter->stats.rlerrc; + netdev->stats.rx_crc_errors = adapter->stats.crcerrs; + netdev->stats.rx_frame_errors = adapter->stats.algnerrc; + netdev->stats.rx_missed_errors = adapter->stats.mpc; + + /* Tx Errors */ + adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol; + netdev->stats.tx_errors = adapter->stats.txerrc; + netdev->stats.tx_aborted_errors = adapter->stats.ecol; + netdev->stats.tx_window_errors = adapter->stats.latecol; + netdev->stats.tx_carrier_errors = adapter->stats.tncrs; + if (hw->bad_tx_carr_stats_fd && + adapter->link_duplex == FULL_DUPLEX) { + netdev->stats.tx_carrier_errors = 0; + adapter->stats.tncrs = 0; + } + + /* Tx Dropped needs to be maintained elsewhere */ + + /* Phy Stats */ + if (hw->media_type == e1000_media_type_copper) { + if ((adapter->link_speed == SPEED_1000) && + (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) { + phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK; + adapter->phy_stats.idle_errors += phy_tmp; + } + + if ((hw->mac_type <= e1000_82546) && + (hw->phy_type == e1000_phy_m88) && + !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp)) + adapter->phy_stats.receive_errors += phy_tmp; + } + + /* Management Stats */ + if (hw->has_smbus) { + adapter->stats.mgptc += er32(MGTPTC); + adapter->stats.mgprc += er32(MGTPRC); + adapter->stats.mgpdc += er32(MGTPDC); + } + + spin_unlock_irqrestore(&adapter->stats_lock, flags); +} + +/** + * e1000_intr - Interrupt Handler + * @irq: interrupt number + * @data: pointer to a network interface device structure + **/ + +static irqreturn_t e1000_intr(int irq, void *data) +{ + struct net_device *netdev = data; + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 icr = er32(ICR); + + if (unlikely((!icr) || test_bit(__E1000_DOWN, &adapter->flags))) + return IRQ_NONE; /* Not our interrupt */ + + if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) { + hw->get_link_status = 1; + /* guard against interrupt when we're going down */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, jiffies + 1); + } + + /* disable interrupts, without the synchronize_irq bit */ + ew32(IMC, ~0); + E1000_WRITE_FLUSH(); + + if (likely(napi_schedule_prep(&adapter->napi))) { + adapter->total_tx_bytes = 0; + adapter->total_tx_packets = 0; + adapter->total_rx_bytes = 0; + adapter->total_rx_packets = 0; + __napi_schedule(&adapter->napi); + } else { + /* this really should not happen! if it does it is basically a + * bug, but not a hard error, so enable ints and continue */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + } + + return IRQ_HANDLED; +} + +/** + * e1000_clean - NAPI Rx polling callback + * @adapter: board private structure + **/ +static int e1000_clean(struct napi_struct *napi, int budget) +{ + struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi); + int tx_clean_complete = 0, work_done = 0; + + tx_clean_complete = e1000_clean_tx_irq(adapter, &adapter->tx_ring[0]); + + adapter->clean_rx(adapter, &adapter->rx_ring[0], &work_done, budget); + + if (!tx_clean_complete) + work_done = budget; + + /* If budget not fully consumed, exit the polling mode */ + if (work_done < budget) { + if (likely(adapter->itr_setting & 3)) + e1000_set_itr(adapter); + napi_complete(napi); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + } + + return work_done; +} + +/** + * e1000_clean_tx_irq - Reclaim resources after transmit completes + * @adapter: board private structure + **/ +static bool e1000_clean_tx_irq(struct e1000_adapter *adapter, + struct e1000_tx_ring *tx_ring) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct e1000_tx_desc *tx_desc, *eop_desc; + struct e1000_buffer *buffer_info; + unsigned int i, eop; + unsigned int count = 0; + unsigned int total_tx_bytes=0, total_tx_packets=0; + + i = tx_ring->next_to_clean; + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC(*tx_ring, eop); + + while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) && + (count < tx_ring->count)) { + bool cleaned = false; + for ( ; !cleaned; count++) { + tx_desc = E1000_TX_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; + cleaned = (i == eop); + + if (cleaned) { + struct sk_buff *skb = buffer_info->skb; + unsigned int segs, bytecount; + segs = skb_shinfo(skb)->gso_segs ?: 1; + /* multiply data chunks by size of headers */ + bytecount = ((segs - 1) * skb_headlen(skb)) + + skb->len; + total_tx_packets += segs; + total_tx_bytes += bytecount; + } + e1000_unmap_and_free_tx_resource(adapter, buffer_info); + tx_desc->upper.data = 0; + + if (unlikely(++i == tx_ring->count)) i = 0; + } + + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC(*tx_ring, eop); + } + + tx_ring->next_to_clean = i; + +#define TX_WAKE_THRESHOLD 32 + if (unlikely(count && netif_carrier_ok(netdev) && + E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) { + /* Make sure that anybody stopping the queue after this + * sees the new next_to_clean. + */ + smp_mb(); + + if (netif_queue_stopped(netdev) && + !(test_bit(__E1000_DOWN, &adapter->flags))) { + netif_wake_queue(netdev); + ++adapter->restart_queue; + } + } + + if (adapter->detect_tx_hung) { + /* Detect a transmit hang in hardware, this serializes the + * check with the clearing of time_stamp and movement of i */ + adapter->detect_tx_hung = false; + if (tx_ring->buffer_info[eop].time_stamp && + time_after(jiffies, tx_ring->buffer_info[eop].time_stamp + + (adapter->tx_timeout_factor * HZ)) && + !(er32(STATUS) & E1000_STATUS_TXOFF)) { + + /* detected Tx unit hang */ + DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n" + " Tx Queue <%lu>\n" + " TDH <%x>\n" + " TDT <%x>\n" + " next_to_use <%x>\n" + " next_to_clean <%x>\n" + "buffer_info[next_to_clean]\n" + " time_stamp <%lx>\n" + " next_to_watch <%x>\n" + " jiffies <%lx>\n" + " next_to_watch.status <%x>\n", + (unsigned long)((tx_ring - adapter->tx_ring) / + sizeof(struct e1000_tx_ring)), + readl(hw->hw_addr + tx_ring->tdh), + readl(hw->hw_addr + tx_ring->tdt), + tx_ring->next_to_use, + tx_ring->next_to_clean, + tx_ring->buffer_info[eop].time_stamp, + eop, + jiffies, + eop_desc->upper.fields.status); + netif_stop_queue(netdev); + } + } + adapter->total_tx_bytes += total_tx_bytes; + adapter->total_tx_packets += total_tx_packets; + netdev->stats.tx_bytes += total_tx_bytes; + netdev->stats.tx_packets += total_tx_packets; + return (count < tx_ring->count); +} + +/** + * e1000_rx_checksum - Receive Checksum Offload for 82543 + * @adapter: board private structure + * @status_err: receive descriptor status and error fields + * @csum: receive descriptor csum field + * @sk_buff: socket buffer with received data + **/ + +static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, + u32 csum, struct sk_buff *skb) +{ + struct e1000_hw *hw = &adapter->hw; + u16 status = (u16)status_err; + u8 errors = (u8)(status_err >> 24); + skb->ip_summed = CHECKSUM_NONE; + + /* 82543 or newer only */ + if (unlikely(hw->mac_type < e1000_82543)) return; + /* Ignore Checksum bit is set */ + if (unlikely(status & E1000_RXD_STAT_IXSM)) return; + /* TCP/UDP checksum error bit is set */ + if (unlikely(errors & E1000_RXD_ERR_TCPE)) { + /* let the stack verify checksum errors */ + adapter->hw_csum_err++; + return; + } + /* TCP/UDP Checksum has not been calculated */ + if (!(status & E1000_RXD_STAT_TCPCS)) + return; + + /* It must be a TCP or UDP packet with a valid checksum */ + if (likely(status & E1000_RXD_STAT_TCPCS)) { + /* TCP checksum is good */ + skb->ip_summed = CHECKSUM_UNNECESSARY; + } + adapter->hw_csum_good++; +} + +/** + * e1000_consume_page - helper function + **/ +static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb, + u16 length) +{ + bi->page = NULL; + skb->len += length; + skb->data_len += length; + skb->truesize += length; +} + +/** + * e1000_receive_skb - helper function to handle rx indications + * @adapter: board private structure + * @status: descriptor status field as written by hardware + * @vlan: descriptor vlan field as written by hardware (no le/be conversion) + * @skb: pointer to sk_buff to be indicated to stack + */ +static void e1000_receive_skb(struct e1000_adapter *adapter, u8 status, + __le16 vlan, struct sk_buff *skb) +{ + if (unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))) { + vlan_hwaccel_receive_skb(skb, adapter->vlgrp, + le16_to_cpu(vlan) & + E1000_RXD_SPC_VLAN_MASK); + } else { + netif_receive_skb(skb); + } +} + +/** + * e1000_clean_jumbo_rx_irq - Send received data up the network stack; legacy + * @adapter: board private structure + * @rx_ring: ring to clean + * @work_done: amount of napi work completed this call + * @work_to_do: max amount of work allowed for this call to do + * + * the return value indicates whether actual cleaning was done, there + * is no guarantee that everything was cleaned + */ +static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc, *next_rxd; + struct e1000_buffer *buffer_info, *next_buffer; + unsigned long irq_flags; + u32 length; + unsigned int i; + int cleaned_count = 0; + bool cleaned = false; + unsigned int total_rx_bytes=0, total_rx_packets=0; + + i = rx_ring->next_to_clean; + rx_desc = E1000_RX_DESC(*rx_ring, i); + buffer_info = &rx_ring->buffer_info[i]; + + while (rx_desc->status & E1000_RXD_STAT_DD) { + struct sk_buff *skb; + u8 status; + + if (*work_done >= work_to_do) + break; + (*work_done)++; + + status = rx_desc->status; + skb = buffer_info->skb; + buffer_info->skb = NULL; + + if (++i == rx_ring->count) i = 0; + next_rxd = E1000_RX_DESC(*rx_ring, i); + prefetch(next_rxd); + + next_buffer = &rx_ring->buffer_info[i]; + + cleaned = true; + cleaned_count++; + pci_unmap_page(pdev, buffer_info->dma, buffer_info->length, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + length = le16_to_cpu(rx_desc->length); + + /* errors is only valid for DD + EOP descriptors */ + if (unlikely((status & E1000_RXD_STAT_EOP) && + (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK))) { + u8 last_byte = *(skb->data + length - 1); + if (TBI_ACCEPT(hw, status, rx_desc->errors, length, + last_byte)) { + spin_lock_irqsave(&adapter->stats_lock, + irq_flags); + e1000_tbi_adjust_stats(hw, &adapter->stats, + length, skb->data); + spin_unlock_irqrestore(&adapter->stats_lock, + irq_flags); + length--; + } else { + /* recycle both page and skb */ + buffer_info->skb = skb; + /* an error means any chain goes out the window + * too */ + if (rx_ring->rx_skb_top) + dev_kfree_skb(rx_ring->rx_skb_top); + rx_ring->rx_skb_top = NULL; + goto next_desc; + } + } + +#define rxtop rx_ring->rx_skb_top + if (!(status & E1000_RXD_STAT_EOP)) { + /* this descriptor is only the beginning (or middle) */ + if (!rxtop) { + /* this is the beginning of a chain */ + rxtop = skb; + skb_fill_page_desc(rxtop, 0, buffer_info->page, + 0, length); + } else { + /* this is the middle of a chain */ + skb_fill_page_desc(rxtop, + skb_shinfo(rxtop)->nr_frags, + buffer_info->page, 0, length); + /* re-use the skb, only consumed the page */ + buffer_info->skb = skb; + } + e1000_consume_page(buffer_info, rxtop, length); + goto next_desc; + } else { + if (rxtop) { + /* end of the chain */ + skb_fill_page_desc(rxtop, + skb_shinfo(rxtop)->nr_frags, + buffer_info->page, 0, length); + /* re-use the current skb, we only consumed the + * page */ + buffer_info->skb = skb; + skb = rxtop; + rxtop = NULL; + e1000_consume_page(buffer_info, skb, length); + } else { + /* no chain, got EOP, this buf is the packet + * copybreak to save the put_page/alloc_page */ + if (length <= copybreak && + skb_tailroom(skb) >= length) { + u8 *vaddr; + vaddr = kmap_atomic(buffer_info->page, + KM_SKB_DATA_SOFTIRQ); + memcpy(skb_tail_pointer(skb), vaddr, length); + kunmap_atomic(vaddr, + KM_SKB_DATA_SOFTIRQ); + /* re-use the page, so don't erase + * buffer_info->page */ + skb_put(skb, length); + } else { + skb_fill_page_desc(skb, 0, + buffer_info->page, 0, + length); + e1000_consume_page(buffer_info, skb, + length); + } + } + } + + /* Receive Checksum Offload XXX recompute due to CRC strip? */ + e1000_rx_checksum(adapter, + (u32)(status) | + ((u32)(rx_desc->errors) << 24), + le16_to_cpu(rx_desc->csum), skb); + + pskb_trim(skb, skb->len - 4); + + /* probably a little skewed due to removing CRC */ + total_rx_bytes += skb->len; + total_rx_packets++; + + /* eth type trans needs skb->data to point to something */ + if (!pskb_may_pull(skb, ETH_HLEN)) { + DPRINTK(DRV, ERR, "pskb_may_pull failed.\n"); + dev_kfree_skb(skb); + goto next_desc; + } + + skb->protocol = eth_type_trans(skb, netdev); + + e1000_receive_skb(adapter, status, rx_desc->special, skb); + +next_desc: + rx_desc->status = 0; + + /* return some buffers to hardware, one at a time is too slow */ + if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) { + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + cleaned_count = 0; + } + + /* use prefetched values */ + rx_desc = next_rxd; + buffer_info = next_buffer; + } + rx_ring->next_to_clean = i; + + cleaned_count = E1000_DESC_UNUSED(rx_ring); + if (cleaned_count) + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + + adapter->total_rx_packets += total_rx_packets; + adapter->total_rx_bytes += total_rx_bytes; + netdev->stats.rx_bytes += total_rx_bytes; + netdev->stats.rx_packets += total_rx_packets; + return cleaned; +} + +/** + * e1000_clean_rx_irq - Send received data up the network stack; legacy + * @adapter: board private structure + * @rx_ring: ring to clean + * @work_done: amount of napi work completed this call + * @work_to_do: max amount of work allowed for this call to do + */ +static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc, *next_rxd; + struct e1000_buffer *buffer_info, *next_buffer; + unsigned long flags; + u32 length; + unsigned int i; + int cleaned_count = 0; + bool cleaned = false; + unsigned int total_rx_bytes=0, total_rx_packets=0; + + i = rx_ring->next_to_clean; + rx_desc = E1000_RX_DESC(*rx_ring, i); + buffer_info = &rx_ring->buffer_info[i]; + + while (rx_desc->status & E1000_RXD_STAT_DD) { + struct sk_buff *skb; + u8 status; + + if (*work_done >= work_to_do) + break; + (*work_done)++; + + status = rx_desc->status; + skb = buffer_info->skb; + buffer_info->skb = NULL; + + prefetch(skb->data - NET_IP_ALIGN); + + if (++i == rx_ring->count) i = 0; + next_rxd = E1000_RX_DESC(*rx_ring, i); + prefetch(next_rxd); + + next_buffer = &rx_ring->buffer_info[i]; + + cleaned = true; + cleaned_count++; + pci_unmap_single(pdev, buffer_info->dma, buffer_info->length, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + length = le16_to_cpu(rx_desc->length); + /* !EOP means multiple descriptors were used to store a single + * packet, if thats the case we need to toss it. In fact, we + * to toss every packet with the EOP bit clear and the next + * frame that _does_ have the EOP bit set, as it is by + * definition only a frame fragment + */ + if (unlikely(!(status & E1000_RXD_STAT_EOP))) + adapter->discarding = true; + + if (adapter->discarding) { + /* All receives must fit into a single buffer */ + E1000_DBG("%s: Receive packet consumed multiple" + " buffers\n", netdev->name); + /* recycle */ + buffer_info->skb = skb; + if (status & E1000_RXD_STAT_EOP) + adapter->discarding = false; + goto next_desc; + } + + if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) { + u8 last_byte = *(skb->data + length - 1); + if (TBI_ACCEPT(hw, status, rx_desc->errors, length, + last_byte)) { + spin_lock_irqsave(&adapter->stats_lock, flags); + e1000_tbi_adjust_stats(hw, &adapter->stats, + length, skb->data); + spin_unlock_irqrestore(&adapter->stats_lock, + flags); + length--; + } else { + /* recycle */ + buffer_info->skb = skb; + goto next_desc; + } + } + + /* adjust length to remove Ethernet CRC, this must be + * done after the TBI_ACCEPT workaround above */ + length -= 4; + + /* probably a little skewed due to removing CRC */ + total_rx_bytes += length; + total_rx_packets++; + + /* code added for copybreak, this should improve + * performance for small packets with large amounts + * of reassembly being done in the stack */ + if (length < copybreak) { + struct sk_buff *new_skb = + netdev_alloc_skb_ip_align(netdev, length); + if (new_skb) { + skb_copy_to_linear_data_offset(new_skb, + -NET_IP_ALIGN, + (skb->data - + NET_IP_ALIGN), + (length + + NET_IP_ALIGN)); + /* save the skb in buffer_info as good */ + buffer_info->skb = skb; + skb = new_skb; + } + /* else just continue with the old one */ + } + /* end copybreak code */ + skb_put(skb, length); + + /* Receive Checksum Offload */ + e1000_rx_checksum(adapter, + (u32)(status) | + ((u32)(rx_desc->errors) << 24), + le16_to_cpu(rx_desc->csum), skb); + + skb->protocol = eth_type_trans(skb, netdev); + + e1000_receive_skb(adapter, status, rx_desc->special, skb); + +next_desc: + rx_desc->status = 0; + + /* return some buffers to hardware, one at a time is too slow */ + if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) { + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + cleaned_count = 0; + } + + /* use prefetched values */ + rx_desc = next_rxd; + buffer_info = next_buffer; + } + rx_ring->next_to_clean = i; + + cleaned_count = E1000_DESC_UNUSED(rx_ring); + if (cleaned_count) + adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count); + + adapter->total_rx_packets += total_rx_packets; + adapter->total_rx_bytes += total_rx_bytes; + netdev->stats.rx_bytes += total_rx_bytes; + netdev->stats.rx_packets += total_rx_packets; + return cleaned; +} + +/** + * e1000_alloc_jumbo_rx_buffers - Replace used jumbo receive buffers + * @adapter: address of board private structure + * @rx_ring: pointer to receive ring structure + * @cleaned_count: number of buffers to allocate this pass + **/ + +static void +e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, int cleaned_count) +{ + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc; + struct e1000_buffer *buffer_info; + struct sk_buff *skb; + unsigned int i; + unsigned int bufsz = 256 - 16 /*for skb_reserve */ ; + + i = rx_ring->next_to_use; + buffer_info = &rx_ring->buffer_info[i]; + + while (cleaned_count--) { + skb = buffer_info->skb; + if (skb) { + skb_trim(skb, 0); + goto check_page; + } + + skb = netdev_alloc_skb_ip_align(netdev, bufsz); + if (unlikely(!skb)) { + /* Better luck next round */ + adapter->alloc_rx_buff_failed++; + break; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + struct sk_buff *oldskb = skb; + DPRINTK(PROBE, ERR, "skb align check failed: %u bytes " + "at %p\n", bufsz, skb->data); + /* Try again, without freeing the previous */ + skb = netdev_alloc_skb_ip_align(netdev, bufsz); + /* Failed allocation, critical failure */ + if (!skb) { + dev_kfree_skb(oldskb); + adapter->alloc_rx_buff_failed++; + break; + } + + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + /* give up */ + dev_kfree_skb(skb); + dev_kfree_skb(oldskb); + break; /* while (cleaned_count--) */ + } + + /* Use new allocation */ + dev_kfree_skb(oldskb); + } + buffer_info->skb = skb; + buffer_info->length = adapter->rx_buffer_len; +check_page: + /* allocate a new page if necessary */ + if (!buffer_info->page) { + buffer_info->page = alloc_page(GFP_ATOMIC); + if (unlikely(!buffer_info->page)) { + adapter->alloc_rx_buff_failed++; + break; + } + } + + if (!buffer_info->dma) { + buffer_info->dma = pci_map_page(pdev, + buffer_info->page, 0, + buffer_info->length, + PCI_DMA_FROMDEVICE); + if (pci_dma_mapping_error(pdev, buffer_info->dma)) { + put_page(buffer_info->page); + dev_kfree_skb(skb); + buffer_info->page = NULL; + buffer_info->skb = NULL; + buffer_info->dma = 0; + adapter->alloc_rx_buff_failed++; + break; /* while !buffer_info->skb */ + } + } + + rx_desc = E1000_RX_DESC(*rx_ring, i); + rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + + if (unlikely(++i == rx_ring->count)) + i = 0; + buffer_info = &rx_ring->buffer_info[i]; + } + + if (likely(rx_ring->next_to_use != i)) { + rx_ring->next_to_use = i; + if (unlikely(i-- == 0)) + i = (rx_ring->count - 1); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + writel(i, adapter->hw.hw_addr + rx_ring->rdt); + } +} + +/** + * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended + * @adapter: address of board private structure + **/ + +static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count) +{ + struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc; + struct e1000_buffer *buffer_info; + struct sk_buff *skb; + unsigned int i; + unsigned int bufsz = adapter->rx_buffer_len; + + i = rx_ring->next_to_use; + buffer_info = &rx_ring->buffer_info[i]; + + while (cleaned_count--) { + skb = buffer_info->skb; + if (skb) { + skb_trim(skb, 0); + goto map_skb; + } + + skb = netdev_alloc_skb_ip_align(netdev, bufsz); + if (unlikely(!skb)) { + /* Better luck next round */ + adapter->alloc_rx_buff_failed++; + break; + } + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + struct sk_buff *oldskb = skb; + DPRINTK(RX_ERR, ERR, "skb align check failed: %u bytes " + "at %p\n", bufsz, skb->data); + /* Try again, without freeing the previous */ + skb = netdev_alloc_skb_ip_align(netdev, bufsz); + /* Failed allocation, critical failure */ + if (!skb) { + dev_kfree_skb(oldskb); + adapter->alloc_rx_buff_failed++; + break; + } + + if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) { + /* give up */ + dev_kfree_skb(skb); + dev_kfree_skb(oldskb); + adapter->alloc_rx_buff_failed++; + break; /* while !buffer_info->skb */ + } + + /* Use new allocation */ + dev_kfree_skb(oldskb); + } + buffer_info->skb = skb; + buffer_info->length = adapter->rx_buffer_len; +map_skb: + buffer_info->dma = pci_map_single(pdev, + skb->data, + buffer_info->length, + PCI_DMA_FROMDEVICE); + if (pci_dma_mapping_error(pdev, buffer_info->dma)) { + dev_kfree_skb(skb); + buffer_info->skb = NULL; + buffer_info->dma = 0; + adapter->alloc_rx_buff_failed++; + break; /* while !buffer_info->skb */ + } + + /* + * XXX if it was allocated cleanly it will never map to a + * boundary crossing + */ + + /* Fix for errata 23, can't cross 64kB boundary */ + if (!e1000_check_64k_bound(adapter, + (void *)(unsigned long)buffer_info->dma, + adapter->rx_buffer_len)) { + DPRINTK(RX_ERR, ERR, + "dma align check failed: %u bytes at %p\n", + adapter->rx_buffer_len, + (void *)(unsigned long)buffer_info->dma); + dev_kfree_skb(skb); + buffer_info->skb = NULL; + + pci_unmap_single(pdev, buffer_info->dma, + adapter->rx_buffer_len, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + adapter->alloc_rx_buff_failed++; + break; /* while !buffer_info->skb */ + } + rx_desc = E1000_RX_DESC(*rx_ring, i); + rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + + if (unlikely(++i == rx_ring->count)) + i = 0; + buffer_info = &rx_ring->buffer_info[i]; + } + + if (likely(rx_ring->next_to_use != i)) { + rx_ring->next_to_use = i; + if (unlikely(i-- == 0)) + i = (rx_ring->count - 1); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + writel(i, hw->hw_addr + rx_ring->rdt); + } +} + +/** + * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers. + * @adapter: + **/ + +static void e1000_smartspeed(struct e1000_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + u16 phy_status; + u16 phy_ctrl; + + if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg || + !(hw->autoneg_advertised & ADVERTISE_1000_FULL)) + return; + + if (adapter->smartspeed == 0) { + /* If Master/Slave config fault is asserted twice, + * we assume back-to-back */ + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status); + if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return; + e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status); + if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return; + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl); + if (phy_ctrl & CR_1000T_MS_ENABLE) { + phy_ctrl &= ~CR_1000T_MS_ENABLE; + e1000_write_phy_reg(hw, PHY_1000T_CTRL, + phy_ctrl); + adapter->smartspeed++; + if (!e1000_phy_setup_autoneg(hw) && + !e1000_read_phy_reg(hw, PHY_CTRL, + &phy_ctrl)) { + phy_ctrl |= (MII_CR_AUTO_NEG_EN | + MII_CR_RESTART_AUTO_NEG); + e1000_write_phy_reg(hw, PHY_CTRL, + phy_ctrl); + } + } + return; + } else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) { + /* If still no link, perhaps using 2/3 pair cable */ + e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl); + phy_ctrl |= CR_1000T_MS_ENABLE; + e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl); + if (!e1000_phy_setup_autoneg(hw) && + !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) { + phy_ctrl |= (MII_CR_AUTO_NEG_EN | + MII_CR_RESTART_AUTO_NEG); + e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl); + } + } + /* Restart process after E1000_SMARTSPEED_MAX iterations */ + if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX) + adapter->smartspeed = 0; +} + +/** + * e1000_ioctl - + * @netdev: + * @ifreq: + * @cmd: + **/ + +static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + switch (cmd) { + case SIOCGMIIPHY: + case SIOCGMIIREG: + case SIOCSMIIREG: + return e1000_mii_ioctl(netdev, ifr, cmd); + default: + return -EOPNOTSUPP; + } +} + +/** + * e1000_mii_ioctl - + * @netdev: + * @ifreq: + * @cmd: + **/ + +static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct mii_ioctl_data *data = if_mii(ifr); + int retval; + u16 mii_reg; + u16 spddplx; + unsigned long flags; + + if (hw->media_type != e1000_media_type_copper) + return -EOPNOTSUPP; + + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = hw->phy_addr; + break; + case SIOCGMIIREG: + spin_lock_irqsave(&adapter->stats_lock, flags); + if (e1000_read_phy_reg(hw, data->reg_num & 0x1F, + &data->val_out)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); + break; + case SIOCSMIIREG: + if (data->reg_num & ~(0x1F)) + return -EFAULT; + mii_reg = data->val_in; + spin_lock_irqsave(&adapter->stats_lock, flags); + if (e1000_write_phy_reg(hw, data->reg_num, + mii_reg)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); + return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); + if (hw->media_type == e1000_media_type_copper) { + switch (data->reg_num) { + case PHY_CTRL: + if (mii_reg & MII_CR_POWER_DOWN) + break; + if (mii_reg & MII_CR_AUTO_NEG_EN) { + hw->autoneg = 1; + hw->autoneg_advertised = 0x2F; + } else { + if (mii_reg & 0x40) + spddplx = SPEED_1000; + else if (mii_reg & 0x2000) + spddplx = SPEED_100; + else + spddplx = SPEED_10; + spddplx += (mii_reg & 0x100) + ? DUPLEX_FULL : + DUPLEX_HALF; + retval = e1000_set_spd_dplx(adapter, + spddplx); + if (retval) + return retval; + } + if (netif_running(adapter->netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + break; + case M88E1000_PHY_SPEC_CTRL: + case M88E1000_EXT_PHY_SPEC_CTRL: + if (e1000_phy_reset(hw)) + return -EIO; + break; + } + } else { + switch (data->reg_num) { + case PHY_CTRL: + if (mii_reg & MII_CR_POWER_DOWN) + break; + if (netif_running(adapter->netdev)) + e1000_reinit_locked(adapter); + else + e1000_reset(adapter); + break; + } + } + break; + default: + return -EOPNOTSUPP; + } + return E1000_SUCCESS; +} + +void e1000_pci_set_mwi(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + int ret_val = pci_set_mwi(adapter->pdev); + + if (ret_val) + DPRINTK(PROBE, ERR, "Error in setting MWI\n"); +} + +void e1000_pci_clear_mwi(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + + pci_clear_mwi(adapter->pdev); +} + +int e1000_pcix_get_mmrbc(struct e1000_hw *hw) +{ + struct e1000_adapter *adapter = hw->back; + return pcix_get_mmrbc(adapter->pdev); +} + +void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc) +{ + struct e1000_adapter *adapter = hw->back; + pcix_set_mmrbc(adapter->pdev, mmrbc); +} + +void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value) +{ + outl(value, port); +} + +static void e1000_vlan_rx_register(struct net_device *netdev, + struct vlan_group *grp) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 ctrl, rctl; + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); + adapter->vlgrp = grp; + + if (grp) { + /* enable VLAN tag insert/strip */ + ctrl = er32(CTRL); + ctrl |= E1000_CTRL_VME; + ew32(CTRL, ctrl); + + /* enable VLAN receive filtering */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_CFIEN; + if (!(netdev->flags & IFF_PROMISC)) + rctl |= E1000_RCTL_VFE; + ew32(RCTL, rctl); + e1000_update_mng_vlan(adapter); + } else { + /* disable VLAN tag insert/strip */ + ctrl = er32(CTRL); + ctrl &= ~E1000_CTRL_VME; + ew32(CTRL, ctrl); + + /* disable VLAN receive filtering */ + rctl = er32(RCTL); + rctl &= ~E1000_RCTL_VFE; + ew32(RCTL, rctl); + + if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) { + e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); + adapter->mng_vlan_id = E1000_MNG_VLAN_NONE; + } + } + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); +} + +static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 vfta, index; + + if ((hw->mng_cookie.status & + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + (vid == adapter->mng_vlan_id)) + return; + /* add VID to filter table */ + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, VFTA, index); + vfta |= (1 << (vid & 0x1F)); + e1000_write_vfta(hw, index, vfta); +} + +static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 vfta, index; + + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); + vlan_group_set_device(adapter->vlgrp, vid, NULL); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); + + /* remove VID from filter table */ + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, VFTA, index); + vfta &= ~(1 << (vid & 0x1F)); + e1000_write_vfta(hw, index, vfta); +} + +static void e1000_restore_vlan(struct e1000_adapter *adapter) +{ + e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp); + + if (adapter->vlgrp) { + u16 vid; + for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) { + if (!vlan_group_get_device(adapter->vlgrp, vid)) + continue; + e1000_vlan_rx_add_vid(adapter->netdev, vid); + } + } +} + +int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx) +{ + struct e1000_hw *hw = &adapter->hw; + + hw->autoneg = 0; + + /* Fiber NICs only allow 1000 gbps Full duplex */ + if ((hw->media_type == e1000_media_type_fiber) && + spddplx != (SPEED_1000 + DUPLEX_FULL)) { + DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; + } + + switch (spddplx) { + case SPEED_10 + DUPLEX_HALF: + hw->forced_speed_duplex = e1000_10_half; + break; + case SPEED_10 + DUPLEX_FULL: + hw->forced_speed_duplex = e1000_10_full; + break; + case SPEED_100 + DUPLEX_HALF: + hw->forced_speed_duplex = e1000_100_half; + break; + case SPEED_100 + DUPLEX_FULL: + hw->forced_speed_duplex = e1000_100_full; + break; + case SPEED_1000 + DUPLEX_FULL: + hw->autoneg = 1; + hw->autoneg_advertised = ADVERTISE_1000_FULL; + break; + case SPEED_1000 + DUPLEX_HALF: /* not supported */ + default: + DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n"); + return -EINVAL; + } + return 0; +} + +static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 ctrl, ctrl_ext, rctl, status; + u32 wufc = adapter->wol; +#ifdef CONFIG_PM + int retval = 0; +#endif + + netif_device_detach(netdev); + + if (netif_running(netdev)) { + WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags)); + e1000_down(adapter); + } + +#ifdef CONFIG_PM + retval = pci_save_state(pdev); + if (retval) + return retval; +#endif + + status = er32(STATUS); + if (status & E1000_STATUS_LU) + wufc &= ~E1000_WUFC_LNKC; + + if (wufc) { + e1000_setup_rctl(adapter); + e1000_set_rx_mode(netdev); + + /* turn on all-multi mode if wake on multicast is enabled */ + if (wufc & E1000_WUFC_MC) { + rctl = er32(RCTL); + rctl |= E1000_RCTL_MPE; + ew32(RCTL, rctl); + } + + if (hw->mac_type >= e1000_82540) { + ctrl = er32(CTRL); + /* advertise wake from D3Cold */ + #define E1000_CTRL_ADVD3WUC 0x00100000 + /* phy power management enable */ + #define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000 + ctrl |= E1000_CTRL_ADVD3WUC | + E1000_CTRL_EN_PHY_PWR_MGMT; + ew32(CTRL, ctrl); + } + + if (hw->media_type == e1000_media_type_fiber || + hw->media_type == e1000_media_type_internal_serdes) { + /* keep the laser running in D3 */ + ctrl_ext = er32(CTRL_EXT); + ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA; + ew32(CTRL_EXT, ctrl_ext); + } + + ew32(WUC, E1000_WUC_PME_EN); + ew32(WUFC, wufc); + } else { + ew32(WUC, 0); + ew32(WUFC, 0); + } + + e1000_release_manageability(adapter); + + *enable_wake = !!wufc; + + /* make sure adapter isn't asleep if manageability is enabled */ + if (adapter->en_mng_pt) + *enable_wake = true; + + if (netif_running(netdev)) + e1000_free_irq(adapter); + + pci_disable_device(pdev); + + return 0; +} + +#ifdef CONFIG_PM +static int e1000_suspend(struct pci_dev *pdev, pm_message_t state) +{ + int retval; + bool wake; + + retval = __e1000_shutdown(pdev, &wake); + if (retval) + return retval; + + if (wake) { + pci_prepare_to_sleep(pdev); + } else { + pci_wake_from_d3(pdev, false); + pci_set_power_state(pdev, PCI_D3hot); + } + + return 0; +} + +static int e1000_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + u32 err; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { + printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n"); + return err; + } + pci_set_master(pdev); + + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + + if (netif_running(netdev)) { + err = e1000_request_irq(adapter); + if (err) + return err; + } + + e1000_power_up_phy(adapter); + e1000_reset(adapter); + ew32(WUS, ~0); + + e1000_init_manageability(adapter); + + if (netif_running(netdev)) + e1000_up(adapter); + + netif_device_attach(netdev); + + return 0; +} +#endif + +static void e1000_shutdown(struct pci_dev *pdev) +{ + bool wake; + + __e1000_shutdown(pdev, &wake); + + if (system_state == SYSTEM_POWER_OFF) { + pci_wake_from_d3(pdev, wake); + pci_set_power_state(pdev, PCI_D3hot); + } +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling 'interrupt' - used by things like netconsole to send skbs + * without having to re-enable interrupts. It's not called while + * the interrupt routine is executing. + */ +static void e1000_netpoll(struct net_device *netdev) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + + disable_irq(adapter->pdev->irq); + e1000_intr(adapter->pdev->irq, netdev); + enable_irq(adapter->pdev->irq); +} +#endif + +/** + * e1000_io_error_detected - called when PCI error is detected + * @pdev: Pointer to PCI device + * @state: The current pci connection state + * + * This function is called after a PCI bus error affecting + * this device has been detected. + */ +static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + + netif_device_detach(netdev); + + if (state == pci_channel_io_perm_failure) + return PCI_ERS_RESULT_DISCONNECT; + + if (netif_running(netdev)) + e1000_down(adapter); + pci_disable_device(pdev); + + /* Request a slot slot reset. */ + return PCI_ERS_RESULT_NEED_RESET; +} + +/** + * e1000_io_slot_reset - called after the pci bus has been reset. + * @pdev: Pointer to PCI device + * + * Restart the card from scratch, as if from a cold-boot. Implementation + * resembles the first-half of the e1000_resume routine. + */ +static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + int err; + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { + printk(KERN_ERR "e1000: Cannot re-enable PCI device after reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + pci_set_master(pdev); + + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + + e1000_reset(adapter); + ew32(WUS, ~0); + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * e1000_io_resume - called when traffic can start flowing again. + * @pdev: Pointer to PCI device + * + * This callback is called when the error recovery driver tells us that + * its OK to resume normal operation. Implementation resembles the + * second-half of the e1000_resume routine. + */ +static void e1000_io_resume(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct e1000_adapter *adapter = netdev_priv(netdev); + + e1000_init_manageability(adapter); + + if (netif_running(netdev)) { + if (e1000_up(adapter)) { + printk("e1000: can't bring device back up after reset\n"); + return; + } + } + + netif_device_attach(netdev); +} + +/* e1000_main.c */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_osdep-2.6.31-ethercat.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_osdep-2.6.31-ethercat.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,113 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* glue for the OS independent part of e1000 + * includes register access macros + */ + +#ifndef _E1000_OSDEP_H_ +#define _E1000_OSDEP_H_ + +#include +#include +#include +#include +#include +#include + +#ifdef DBG +#define DEBUGOUT(S) printk(KERN_DEBUG S "\n") +#define DEBUGOUT1(S, A...) printk(KERN_DEBUG S "\n", A) +#else +#define DEBUGOUT(S) +#define DEBUGOUT1(S, A...) +#endif + +#define DEBUGFUNC(F) DEBUGOUT(F "\n") +#define DEBUGOUT2 DEBUGOUT1 +#define DEBUGOUT3 DEBUGOUT2 +#define DEBUGOUT7 DEBUGOUT3 + + +#define er32(reg) \ + (readl(hw->hw_addr + ((hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg))) + +#define ew32(reg, value) \ + (writel((value), (hw->hw_addr + ((hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg)))) + +#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) ( \ + writel((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 2)))) + +#define E1000_READ_REG_ARRAY(a, reg, offset) ( \ + readl((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 2))) + +#define E1000_READ_REG_ARRAY_DWORD E1000_READ_REG_ARRAY +#define E1000_WRITE_REG_ARRAY_DWORD E1000_WRITE_REG_ARRAY + +#define E1000_WRITE_REG_ARRAY_WORD(a, reg, offset, value) ( \ + writew((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 1)))) + +#define E1000_READ_REG_ARRAY_WORD(a, reg, offset) ( \ + readw((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 1))) + +#define E1000_WRITE_REG_ARRAY_BYTE(a, reg, offset, value) ( \ + writeb((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + (offset)))) + +#define E1000_READ_REG_ARRAY_BYTE(a, reg, offset) ( \ + readb((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + (offset))) + +#define E1000_WRITE_FLUSH() er32(STATUS) + +#define E1000_WRITE_ICH_FLASH_REG(a, reg, value) ( \ + writel((value), ((a)->flash_address + reg))) + +#define E1000_READ_ICH_FLASH_REG(a, reg) ( \ + readl((a)->flash_address + reg)) + +#define E1000_WRITE_ICH_FLASH_REG16(a, reg, value) ( \ + writew((value), ((a)->flash_address + reg))) + +#define E1000_READ_ICH_FLASH_REG16(a, reg) ( \ + readw((a)->flash_address + reg)) + +#endif /* _E1000_OSDEP_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_osdep-2.6.31-orig.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_osdep-2.6.31-orig.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,113 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* glue for the OS independent part of e1000 + * includes register access macros + */ + +#ifndef _E1000_OSDEP_H_ +#define _E1000_OSDEP_H_ + +#include +#include +#include +#include +#include +#include + +#ifdef DBG +#define DEBUGOUT(S) printk(KERN_DEBUG S "\n") +#define DEBUGOUT1(S, A...) printk(KERN_DEBUG S "\n", A) +#else +#define DEBUGOUT(S) +#define DEBUGOUT1(S, A...) +#endif + +#define DEBUGFUNC(F) DEBUGOUT(F "\n") +#define DEBUGOUT2 DEBUGOUT1 +#define DEBUGOUT3 DEBUGOUT2 +#define DEBUGOUT7 DEBUGOUT3 + + +#define er32(reg) \ + (readl(hw->hw_addr + ((hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg))) + +#define ew32(reg, value) \ + (writel((value), (hw->hw_addr + ((hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg)))) + +#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) ( \ + writel((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 2)))) + +#define E1000_READ_REG_ARRAY(a, reg, offset) ( \ + readl((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 2))) + +#define E1000_READ_REG_ARRAY_DWORD E1000_READ_REG_ARRAY +#define E1000_WRITE_REG_ARRAY_DWORD E1000_WRITE_REG_ARRAY + +#define E1000_WRITE_REG_ARRAY_WORD(a, reg, offset, value) ( \ + writew((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 1)))) + +#define E1000_READ_REG_ARRAY_WORD(a, reg, offset) ( \ + readw((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 1))) + +#define E1000_WRITE_REG_ARRAY_BYTE(a, reg, offset, value) ( \ + writeb((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + (offset)))) + +#define E1000_READ_REG_ARRAY_BYTE(a, reg, offset) ( \ + readb((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + (offset))) + +#define E1000_WRITE_FLUSH() er32(STATUS) + +#define E1000_WRITE_ICH_FLASH_REG(a, reg, value) ( \ + writel((value), ((a)->flash_address + reg))) + +#define E1000_READ_ICH_FLASH_REG(a, reg) ( \ + readl((a)->flash_address + reg)) + +#define E1000_WRITE_ICH_FLASH_REG16(a, reg, value) ( \ + writew((value), ((a)->flash_address + reg))) + +#define E1000_READ_ICH_FLASH_REG16(a, reg) ( \ + readw((a)->flash_address + reg)) + +#endif /* _E1000_OSDEP_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_osdep-2.6.33-ethercat.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_osdep-2.6.33-ethercat.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,113 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* glue for the OS independent part of e1000 + * includes register access macros + */ + +#ifndef _E1000_OSDEP_H_ +#define _E1000_OSDEP_H_ + +#include +#include +#include +#include +#include +#include + +#ifdef DBG +#define DEBUGOUT(S) printk(KERN_DEBUG S "\n") +#define DEBUGOUT1(S, A...) printk(KERN_DEBUG S "\n", A) +#else +#define DEBUGOUT(S) +#define DEBUGOUT1(S, A...) +#endif + +#define DEBUGFUNC(F) DEBUGOUT(F "\n") +#define DEBUGOUT2 DEBUGOUT1 +#define DEBUGOUT3 DEBUGOUT2 +#define DEBUGOUT7 DEBUGOUT3 + + +#define er32(reg) \ + (readl(hw->hw_addr + ((hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg))) + +#define ew32(reg, value) \ + (writel((value), (hw->hw_addr + ((hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg)))) + +#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) ( \ + writel((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 2)))) + +#define E1000_READ_REG_ARRAY(a, reg, offset) ( \ + readl((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 2))) + +#define E1000_READ_REG_ARRAY_DWORD E1000_READ_REG_ARRAY +#define E1000_WRITE_REG_ARRAY_DWORD E1000_WRITE_REG_ARRAY + +#define E1000_WRITE_REG_ARRAY_WORD(a, reg, offset, value) ( \ + writew((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 1)))) + +#define E1000_READ_REG_ARRAY_WORD(a, reg, offset) ( \ + readw((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 1))) + +#define E1000_WRITE_REG_ARRAY_BYTE(a, reg, offset, value) ( \ + writeb((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + (offset)))) + +#define E1000_READ_REG_ARRAY_BYTE(a, reg, offset) ( \ + readb((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + (offset))) + +#define E1000_WRITE_FLUSH() er32(STATUS) + +#define E1000_WRITE_ICH_FLASH_REG(a, reg, value) ( \ + writel((value), ((a)->flash_address + reg))) + +#define E1000_READ_ICH_FLASH_REG(a, reg) ( \ + readl((a)->flash_address + reg)) + +#define E1000_WRITE_ICH_FLASH_REG16(a, reg, value) ( \ + writew((value), ((a)->flash_address + reg))) + +#define E1000_READ_ICH_FLASH_REG16(a, reg) ( \ + readw((a)->flash_address + reg)) + +#endif /* _E1000_OSDEP_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_osdep-2.6.33-orig.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_osdep-2.6.33-orig.h Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,113 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + + +/* glue for the OS independent part of e1000 + * includes register access macros + */ + +#ifndef _E1000_OSDEP_H_ +#define _E1000_OSDEP_H_ + +#include +#include +#include +#include +#include +#include + +#ifdef DBG +#define DEBUGOUT(S) printk(KERN_DEBUG S "\n") +#define DEBUGOUT1(S, A...) printk(KERN_DEBUG S "\n", A) +#else +#define DEBUGOUT(S) +#define DEBUGOUT1(S, A...) +#endif + +#define DEBUGFUNC(F) DEBUGOUT(F "\n") +#define DEBUGOUT2 DEBUGOUT1 +#define DEBUGOUT3 DEBUGOUT2 +#define DEBUGOUT7 DEBUGOUT3 + + +#define er32(reg) \ + (readl(hw->hw_addr + ((hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg))) + +#define ew32(reg, value) \ + (writel((value), (hw->hw_addr + ((hw->mac_type >= e1000_82543) \ + ? E1000_##reg : E1000_82542_##reg)))) + +#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) ( \ + writel((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 2)))) + +#define E1000_READ_REG_ARRAY(a, reg, offset) ( \ + readl((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 2))) + +#define E1000_READ_REG_ARRAY_DWORD E1000_READ_REG_ARRAY +#define E1000_WRITE_REG_ARRAY_DWORD E1000_WRITE_REG_ARRAY + +#define E1000_WRITE_REG_ARRAY_WORD(a, reg, offset, value) ( \ + writew((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 1)))) + +#define E1000_READ_REG_ARRAY_WORD(a, reg, offset) ( \ + readw((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + ((offset) << 1))) + +#define E1000_WRITE_REG_ARRAY_BYTE(a, reg, offset, value) ( \ + writeb((value), ((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + (offset)))) + +#define E1000_READ_REG_ARRAY_BYTE(a, reg, offset) ( \ + readb((a)->hw_addr + \ + (((a)->mac_type >= e1000_82543) ? E1000_##reg : E1000_82542_##reg) + \ + (offset))) + +#define E1000_WRITE_FLUSH() er32(STATUS) + +#define E1000_WRITE_ICH_FLASH_REG(a, reg, value) ( \ + writel((value), ((a)->flash_address + reg))) + +#define E1000_READ_ICH_FLASH_REG(a, reg) ( \ + readl((a)->flash_address + reg)) + +#define E1000_WRITE_ICH_FLASH_REG16(a, reg, value) ( \ + writew((value), ((a)->flash_address + reg))) + +#define E1000_READ_ICH_FLASH_REG16(a, reg) ( \ + readw((a)->flash_address + reg)) + +#endif /* _E1000_OSDEP_H_ */ diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_param-2.6.31-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_param-2.6.31-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,792 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include "e1000-2.6.31-ethercat.h" + +/* This is the only thing that needs to be changed to adjust the + * maximum number of ports that the driver can manage. + */ + +#define E1000_MAX_NIC 32 + +#define OPTION_UNSET -1 +#define OPTION_DISABLED 0 +#define OPTION_ENABLED 1 + +/* All parameters are treated the same, as an integer array of values. + * This macro just reduces the need to repeat the same declaration code + * over and over (plus this helps to avoid typo bugs). + */ + +#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET } +#define E1000_PARAM(X, desc) \ + static int __devinitdata X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \ + static unsigned int num_##X; \ + module_param_array_named(X, X, int, &num_##X, 0); \ + MODULE_PARM_DESC(X, desc); + +/* Transmit Descriptor Count + * + * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers + * Valid Range: 80-4096 for 82544 and newer + * + * Default Value: 256 + */ +E1000_PARAM(TxDescriptors, "Number of transmit descriptors"); + +/* Receive Descriptor Count + * + * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers + * Valid Range: 80-4096 for 82544 and newer + * + * Default Value: 256 + */ +E1000_PARAM(RxDescriptors, "Number of receive descriptors"); + +/* User Specified Speed Override + * + * Valid Range: 0, 10, 100, 1000 + * - 0 - auto-negotiate at all supported speeds + * - 10 - only link at 10 Mbps + * - 100 - only link at 100 Mbps + * - 1000 - only link at 1000 Mbps + * + * Default Value: 0 + */ +E1000_PARAM(Speed, "Speed setting"); + +/* User Specified Duplex Override + * + * Valid Range: 0-2 + * - 0 - auto-negotiate for duplex + * - 1 - only link at half duplex + * - 2 - only link at full duplex + * + * Default Value: 0 + */ +E1000_PARAM(Duplex, "Duplex setting"); + +/* Auto-negotiation Advertisement Override + * + * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber) + * + * The AutoNeg value is a bit mask describing which speed and duplex + * combinations should be advertised during auto-negotiation. + * The supported speed and duplex modes are listed below + * + * Bit 7 6 5 4 3 2 1 0 + * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10 + * Duplex Full Full Half Full Half + * + * Default Value: 0x2F (copper); 0x20 (fiber) + */ +E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting"); +#define AUTONEG_ADV_DEFAULT 0x2F +#define AUTONEG_ADV_MASK 0x2F + +/* User Specified Flow Control Override + * + * Valid Range: 0-3 + * - 0 - No Flow Control + * - 1 - Rx only, respond to PAUSE frames but do not generate them + * - 2 - Tx only, generate PAUSE frames but ignore them on receive + * - 3 - Full Flow Control Support + * + * Default Value: Read flow control settings from the EEPROM + */ +E1000_PARAM(FlowControl, "Flow Control setting"); +#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL + +/* XsumRX - Receive Checksum Offload Enable/Disable + * + * Valid Range: 0, 1 + * - 0 - disables all checksum offload + * - 1 - enables receive IP/TCP/UDP checksum offload + * on 82543 and newer -based NICs + * + * Default Value: 1 + */ +E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload"); + +/* Transmit Interrupt Delay in units of 1.024 microseconds + * Tx interrupt delay needs to typically be set to something non zero + * + * Valid Range: 0-65535 + */ +E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay"); +#define DEFAULT_TIDV 8 +#define MAX_TXDELAY 0xFFFF +#define MIN_TXDELAY 0 + +/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds + * + * Valid Range: 0-65535 + */ +E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay"); +#define DEFAULT_TADV 32 +#define MAX_TXABSDELAY 0xFFFF +#define MIN_TXABSDELAY 0 + +/* Receive Interrupt Delay in units of 1.024 microseconds + * hardware will likely hang if you set this to anything but zero. + * + * Valid Range: 0-65535 + */ +E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); +#define DEFAULT_RDTR 0 +#define MAX_RXDELAY 0xFFFF +#define MIN_RXDELAY 0 + +/* Receive Absolute Interrupt Delay in units of 1.024 microseconds + * + * Valid Range: 0-65535 + */ +E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); +#define DEFAULT_RADV 8 +#define MAX_RXABSDELAY 0xFFFF +#define MIN_RXABSDELAY 0 + +/* Interrupt Throttle Rate (interrupts/sec) + * + * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative) + */ +E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); +#define DEFAULT_ITR 3 +#define MAX_ITR 100000 +#define MIN_ITR 100 + +/* Enable Smart Power Down of the PHY + * + * Valid Range: 0, 1 + * + * Default Value: 0 (disabled) + */ +E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down"); + +/* Enable Kumeran Lock Loss workaround + * + * Valid Range: 0, 1 + * + * Default Value: 1 (enabled) + */ +E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround"); + +struct e1000_option { + enum { enable_option, range_option, list_option } type; + const char *name; + const char *err; + int def; + union { + struct { /* range_option info */ + int min; + int max; + } r; + struct { /* list_option info */ + int nr; + const struct e1000_opt_list { int i; char *str; } *p; + } l; + } arg; +}; + +static int __devinit e1000_validate_option(unsigned int *value, + const struct e1000_option *opt, + struct e1000_adapter *adapter) +{ + if (*value == OPTION_UNSET) { + *value = opt->def; + return 0; + } + + switch (opt->type) { + case enable_option: + switch (*value) { + case OPTION_ENABLED: + DPRINTK(PROBE, INFO, "%s Enabled\n", opt->name); + return 0; + case OPTION_DISABLED: + DPRINTK(PROBE, INFO, "%s Disabled\n", opt->name); + return 0; + } + break; + case range_option: + if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { + DPRINTK(PROBE, INFO, + "%s set to %i\n", opt->name, *value); + return 0; + } + break; + case list_option: { + int i; + const struct e1000_opt_list *ent; + + for (i = 0; i < opt->arg.l.nr; i++) { + ent = &opt->arg.l.p[i]; + if (*value == ent->i) { + if (ent->str[0] != '\0') + DPRINTK(PROBE, INFO, "%s\n", ent->str); + return 0; + } + } + } + break; + default: + BUG(); + } + + DPRINTK(PROBE, INFO, "Invalid %s value specified (%i) %s\n", + opt->name, *value, opt->err); + *value = opt->def; + return -1; +} + +static void e1000_check_fiber_options(struct e1000_adapter *adapter); +static void e1000_check_copper_options(struct e1000_adapter *adapter); + +/** + * e1000_check_options - Range Checking for Command Line Parameters + * @adapter: board private structure + * + * This routine checks all command line parameters for valid user + * input. If an invalid value is given, or if no user specified + * value exists, a default value is used. The final value is stored + * in a variable in the adapter structure. + **/ + +void __devinit e1000_check_options(struct e1000_adapter *adapter) +{ + struct e1000_option opt; + int bd = adapter->bd_number; + + if (bd >= E1000_MAX_NIC) { + DPRINTK(PROBE, NOTICE, + "Warning: no configuration for board #%i\n", bd); + DPRINTK(PROBE, NOTICE, "Using defaults for all values\n"); + } + + { /* Transmit Descriptor Count */ + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Descriptors", + .err = "using default of " + __MODULE_STRING(E1000_DEFAULT_TXD), + .def = E1000_DEFAULT_TXD, + .arg = { .r = { + .min = E1000_MIN_TXD, + .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD + }} + }; + + if (num_TxDescriptors > bd) { + tx_ring->count = TxDescriptors[bd]; + e1000_validate_option(&tx_ring->count, &opt, adapter); + tx_ring->count = ALIGN(tx_ring->count, + REQ_TX_DESCRIPTOR_MULTIPLE); + } else { + tx_ring->count = opt.def; + } + for (i = 0; i < adapter->num_tx_queues; i++) + tx_ring[i].count = tx_ring->count; + } + { /* Receive Descriptor Count */ + struct e1000_rx_ring *rx_ring = adapter->rx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Descriptors", + .err = "using default of " + __MODULE_STRING(E1000_DEFAULT_RXD), + .def = E1000_DEFAULT_RXD, + .arg = { .r = { + .min = E1000_MIN_RXD, + .max = mac_type < e1000_82544 ? E1000_MAX_RXD : E1000_MAX_82544_RXD + }} + }; + + if (num_RxDescriptors > bd) { + rx_ring->count = RxDescriptors[bd]; + e1000_validate_option(&rx_ring->count, &opt, adapter); + rx_ring->count = ALIGN(rx_ring->count, + REQ_RX_DESCRIPTOR_MULTIPLE); + } else { + rx_ring->count = opt.def; + } + for (i = 0; i < adapter->num_rx_queues; i++) + rx_ring[i].count = rx_ring->count; + } + { /* Checksum Offload Enable/Disable */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "Checksum Offload", + .err = "defaulting to Enabled", + .def = OPTION_ENABLED + }; + + if (num_XsumRX > bd) { + unsigned int rx_csum = XsumRX[bd]; + e1000_validate_option(&rx_csum, &opt, adapter); + adapter->rx_csum = rx_csum; + } else { + adapter->rx_csum = opt.def; + } + } + { /* Flow Control */ + + struct e1000_opt_list fc_list[] = + {{ E1000_FC_NONE, "Flow Control Disabled" }, + { E1000_FC_RX_PAUSE,"Flow Control Receive Only" }, + { E1000_FC_TX_PAUSE,"Flow Control Transmit Only" }, + { E1000_FC_FULL, "Flow Control Enabled" }, + { E1000_FC_DEFAULT, "Flow Control Hardware Default" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Flow Control", + .err = "reading default settings from EEPROM", + .def = E1000_FC_DEFAULT, + .arg = { .l = { .nr = ARRAY_SIZE(fc_list), + .p = fc_list }} + }; + + if (num_FlowControl > bd) { + unsigned int fc = FlowControl[bd]; + e1000_validate_option(&fc, &opt, adapter); + adapter->hw.fc = adapter->hw.original_fc = fc; + } else { + adapter->hw.fc = adapter->hw.original_fc = opt.def; + } + } + { /* Transmit Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_TIDV), + .def = DEFAULT_TIDV, + .arg = { .r = { .min = MIN_TXDELAY, + .max = MAX_TXDELAY }} + }; + + if (num_TxIntDelay > bd) { + adapter->tx_int_delay = TxIntDelay[bd]; + e1000_validate_option(&adapter->tx_int_delay, &opt, + adapter); + } else { + adapter->tx_int_delay = opt.def; + } + } + { /* Transmit Absolute Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Absolute Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_TADV), + .def = DEFAULT_TADV, + .arg = { .r = { .min = MIN_TXABSDELAY, + .max = MAX_TXABSDELAY }} + }; + + if (num_TxAbsIntDelay > bd) { + adapter->tx_abs_int_delay = TxAbsIntDelay[bd]; + e1000_validate_option(&adapter->tx_abs_int_delay, &opt, + adapter); + } else { + adapter->tx_abs_int_delay = opt.def; + } + } + { /* Receive Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_RDTR), + .def = DEFAULT_RDTR, + .arg = { .r = { .min = MIN_RXDELAY, + .max = MAX_RXDELAY }} + }; + + if (num_RxIntDelay > bd) { + adapter->rx_int_delay = RxIntDelay[bd]; + e1000_validate_option(&adapter->rx_int_delay, &opt, + adapter); + } else { + adapter->rx_int_delay = opt.def; + } + } + { /* Receive Absolute Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Absolute Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_RADV), + .def = DEFAULT_RADV, + .arg = { .r = { .min = MIN_RXABSDELAY, + .max = MAX_RXABSDELAY }} + }; + + if (num_RxAbsIntDelay > bd) { + adapter->rx_abs_int_delay = RxAbsIntDelay[bd]; + e1000_validate_option(&adapter->rx_abs_int_delay, &opt, + adapter); + } else { + adapter->rx_abs_int_delay = opt.def; + } + } + { /* Interrupt Throttling Rate */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Interrupt Throttling Rate (ints/sec)", + .err = "using default of " __MODULE_STRING(DEFAULT_ITR), + .def = DEFAULT_ITR, + .arg = { .r = { .min = MIN_ITR, + .max = MAX_ITR }} + }; + + if (num_InterruptThrottleRate > bd) { + adapter->itr = InterruptThrottleRate[bd]; + switch (adapter->itr) { + case 0: + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + break; + case 1: + DPRINTK(PROBE, INFO, "%s set to dynamic mode\n", + opt.name); + adapter->itr_setting = adapter->itr; + adapter->itr = 20000; + break; + case 3: + DPRINTK(PROBE, INFO, + "%s set to dynamic conservative mode\n", + opt.name); + adapter->itr_setting = adapter->itr; + adapter->itr = 20000; + break; + default: + e1000_validate_option(&adapter->itr, &opt, + adapter); + /* save the setting, because the dynamic bits change itr */ + /* clear the lower two bits because they are + * used as control */ + adapter->itr_setting = adapter->itr & ~3; + break; + } + } else { + adapter->itr_setting = opt.def; + adapter->itr = 20000; + } + } + { /* Smart Power Down */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "PHY Smart Power Down", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED + }; + + if (num_SmartPowerDownEnable > bd) { + unsigned int spd = SmartPowerDownEnable[bd]; + e1000_validate_option(&spd, &opt, adapter); + adapter->smart_power_down = spd; + } else { + adapter->smart_power_down = opt.def; + } + } + { /* Kumeran Lock Loss Workaround */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "Kumeran Lock Loss Workaround", + .err = "defaulting to Enabled", + .def = OPTION_ENABLED + }; + + if (num_KumeranLockLoss > bd) { + unsigned int kmrn_lock_loss = KumeranLockLoss[bd]; + e1000_validate_option(&kmrn_lock_loss, &opt, adapter); + adapter->hw.kmrn_lock_loss_workaround_disabled = !kmrn_lock_loss; + } else { + adapter->hw.kmrn_lock_loss_workaround_disabled = !opt.def; + } + } + + switch (adapter->hw.media_type) { + case e1000_media_type_fiber: + case e1000_media_type_internal_serdes: + e1000_check_fiber_options(adapter); + break; + case e1000_media_type_copper: + e1000_check_copper_options(adapter); + break; + default: + BUG(); + } +} + +/** + * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version + * @adapter: board private structure + * + * Handles speed and duplex options on fiber adapters + **/ + +static void __devinit e1000_check_fiber_options(struct e1000_adapter *adapter) +{ + int bd = adapter->bd_number; + if (num_Speed > bd) { + DPRINTK(PROBE, INFO, "Speed not valid for fiber adapters, " + "parameter ignored\n"); + } + + if (num_Duplex > bd) { + DPRINTK(PROBE, INFO, "Duplex not valid for fiber adapters, " + "parameter ignored\n"); + } + + if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) { + DPRINTK(PROBE, INFO, "AutoNeg other than 1000/Full is " + "not valid for fiber adapters, " + "parameter ignored\n"); + } +} + +/** + * e1000_check_copper_options - Range Checking for Link Options, Copper Version + * @adapter: board private structure + * + * Handles speed and duplex options on copper adapters + **/ + +static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter) +{ + struct e1000_option opt; + unsigned int speed, dplx, an; + int bd = adapter->bd_number; + + { /* Speed */ + static const struct e1000_opt_list speed_list[] = { + { 0, "" }, + { SPEED_10, "" }, + { SPEED_100, "" }, + { SPEED_1000, "" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Speed", + .err = "parameter ignored", + .def = 0, + .arg = { .l = { .nr = ARRAY_SIZE(speed_list), + .p = speed_list }} + }; + + if (num_Speed > bd) { + speed = Speed[bd]; + e1000_validate_option(&speed, &opt, adapter); + } else { + speed = opt.def; + } + } + { /* Duplex */ + static const struct e1000_opt_list dplx_list[] = { + { 0, "" }, + { HALF_DUPLEX, "" }, + { FULL_DUPLEX, "" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Duplex", + .err = "parameter ignored", + .def = 0, + .arg = { .l = { .nr = ARRAY_SIZE(dplx_list), + .p = dplx_list }} + }; + + if (e1000_check_phy_reset_block(&adapter->hw)) { + DPRINTK(PROBE, INFO, + "Link active due to SoL/IDER Session. " + "Speed/Duplex/AutoNeg parameter ignored.\n"); + return; + } + if (num_Duplex > bd) { + dplx = Duplex[bd]; + e1000_validate_option(&dplx, &opt, adapter); + } else { + dplx = opt.def; + } + } + + if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) { + DPRINTK(PROBE, INFO, + "AutoNeg specified along with Speed or Duplex, " + "parameter ignored\n"); + adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT; + } else { /* Autoneg */ + static const struct e1000_opt_list an_list[] = + #define AA "AutoNeg advertising " + {{ 0x01, AA "10/HD" }, + { 0x02, AA "10/FD" }, + { 0x03, AA "10/FD, 10/HD" }, + { 0x04, AA "100/HD" }, + { 0x05, AA "100/HD, 10/HD" }, + { 0x06, AA "100/HD, 10/FD" }, + { 0x07, AA "100/HD, 10/FD, 10/HD" }, + { 0x08, AA "100/FD" }, + { 0x09, AA "100/FD, 10/HD" }, + { 0x0a, AA "100/FD, 10/FD" }, + { 0x0b, AA "100/FD, 10/FD, 10/HD" }, + { 0x0c, AA "100/FD, 100/HD" }, + { 0x0d, AA "100/FD, 100/HD, 10/HD" }, + { 0x0e, AA "100/FD, 100/HD, 10/FD" }, + { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" }, + { 0x20, AA "1000/FD" }, + { 0x21, AA "1000/FD, 10/HD" }, + { 0x22, AA "1000/FD, 10/FD" }, + { 0x23, AA "1000/FD, 10/FD, 10/HD" }, + { 0x24, AA "1000/FD, 100/HD" }, + { 0x25, AA "1000/FD, 100/HD, 10/HD" }, + { 0x26, AA "1000/FD, 100/HD, 10/FD" }, + { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" }, + { 0x28, AA "1000/FD, 100/FD" }, + { 0x29, AA "1000/FD, 100/FD, 10/HD" }, + { 0x2a, AA "1000/FD, 100/FD, 10/FD" }, + { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" }, + { 0x2c, AA "1000/FD, 100/FD, 100/HD" }, + { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" }, + { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" }, + { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "AutoNeg", + .err = "parameter ignored", + .def = AUTONEG_ADV_DEFAULT, + .arg = { .l = { .nr = ARRAY_SIZE(an_list), + .p = an_list }} + }; + + if (num_AutoNeg > bd) { + an = AutoNeg[bd]; + e1000_validate_option(&an, &opt, adapter); + } else { + an = opt.def; + } + adapter->hw.autoneg_advertised = an; + } + + switch (speed + dplx) { + case 0: + adapter->hw.autoneg = adapter->fc_autoneg = 1; + if ((num_Speed > bd) && (speed != 0 || dplx != 0)) + DPRINTK(PROBE, INFO, + "Speed and duplex autonegotiation enabled\n"); + break; + case HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Half Duplex specified without Speed\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "Half Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | + ADVERTISE_100_HALF; + break; + case FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Full Duplex specified without Speed\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "Full Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_FULL | + ADVERTISE_100_FULL | + ADVERTISE_1000_FULL; + break; + case SPEED_10: + DPRINTK(PROBE, INFO, "10 Mbps Speed specified " + "without Duplex\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at 10 Mbps only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | + ADVERTISE_10_FULL; + break; + case SPEED_10 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Half Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_10_half; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_10 + FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Full Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_10_full; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_100: + DPRINTK(PROBE, INFO, "100 Mbps Speed specified " + "without Duplex\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "100 Mbps only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_100_HALF | + ADVERTISE_100_FULL; + break; + case SPEED_100 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Half Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_100_half; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_100 + FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Full Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_100_full; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_1000: + DPRINTK(PROBE, INFO, "1000 Mbps Speed specified without " + "Duplex\n"); + goto full_duplex_only; + case SPEED_1000 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, + "Half Duplex is not supported at 1000 Mbps\n"); + /* fall through */ + case SPEED_1000 + FULL_DUPLEX: +full_duplex_only: + DPRINTK(PROBE, INFO, + "Using Autonegotiation at 1000 Mbps Full Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL; + break; + default: + BUG(); + } + + /* Speed, AutoNeg and MDI/MDI-X must all play nice */ + if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) { + DPRINTK(PROBE, INFO, + "Speed, AutoNeg and MDI-X specifications are " + "incompatible. Setting MDI-X to a compatible value.\n"); + } +} + diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_param-2.6.31-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_param-2.6.31-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,792 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include "e1000.h" + +/* This is the only thing that needs to be changed to adjust the + * maximum number of ports that the driver can manage. + */ + +#define E1000_MAX_NIC 32 + +#define OPTION_UNSET -1 +#define OPTION_DISABLED 0 +#define OPTION_ENABLED 1 + +/* All parameters are treated the same, as an integer array of values. + * This macro just reduces the need to repeat the same declaration code + * over and over (plus this helps to avoid typo bugs). + */ + +#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET } +#define E1000_PARAM(X, desc) \ + static int __devinitdata X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \ + static unsigned int num_##X; \ + module_param_array_named(X, X, int, &num_##X, 0); \ + MODULE_PARM_DESC(X, desc); + +/* Transmit Descriptor Count + * + * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers + * Valid Range: 80-4096 for 82544 and newer + * + * Default Value: 256 + */ +E1000_PARAM(TxDescriptors, "Number of transmit descriptors"); + +/* Receive Descriptor Count + * + * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers + * Valid Range: 80-4096 for 82544 and newer + * + * Default Value: 256 + */ +E1000_PARAM(RxDescriptors, "Number of receive descriptors"); + +/* User Specified Speed Override + * + * Valid Range: 0, 10, 100, 1000 + * - 0 - auto-negotiate at all supported speeds + * - 10 - only link at 10 Mbps + * - 100 - only link at 100 Mbps + * - 1000 - only link at 1000 Mbps + * + * Default Value: 0 + */ +E1000_PARAM(Speed, "Speed setting"); + +/* User Specified Duplex Override + * + * Valid Range: 0-2 + * - 0 - auto-negotiate for duplex + * - 1 - only link at half duplex + * - 2 - only link at full duplex + * + * Default Value: 0 + */ +E1000_PARAM(Duplex, "Duplex setting"); + +/* Auto-negotiation Advertisement Override + * + * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber) + * + * The AutoNeg value is a bit mask describing which speed and duplex + * combinations should be advertised during auto-negotiation. + * The supported speed and duplex modes are listed below + * + * Bit 7 6 5 4 3 2 1 0 + * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10 + * Duplex Full Full Half Full Half + * + * Default Value: 0x2F (copper); 0x20 (fiber) + */ +E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting"); +#define AUTONEG_ADV_DEFAULT 0x2F +#define AUTONEG_ADV_MASK 0x2F + +/* User Specified Flow Control Override + * + * Valid Range: 0-3 + * - 0 - No Flow Control + * - 1 - Rx only, respond to PAUSE frames but do not generate them + * - 2 - Tx only, generate PAUSE frames but ignore them on receive + * - 3 - Full Flow Control Support + * + * Default Value: Read flow control settings from the EEPROM + */ +E1000_PARAM(FlowControl, "Flow Control setting"); +#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL + +/* XsumRX - Receive Checksum Offload Enable/Disable + * + * Valid Range: 0, 1 + * - 0 - disables all checksum offload + * - 1 - enables receive IP/TCP/UDP checksum offload + * on 82543 and newer -based NICs + * + * Default Value: 1 + */ +E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload"); + +/* Transmit Interrupt Delay in units of 1.024 microseconds + * Tx interrupt delay needs to typically be set to something non zero + * + * Valid Range: 0-65535 + */ +E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay"); +#define DEFAULT_TIDV 8 +#define MAX_TXDELAY 0xFFFF +#define MIN_TXDELAY 0 + +/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds + * + * Valid Range: 0-65535 + */ +E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay"); +#define DEFAULT_TADV 32 +#define MAX_TXABSDELAY 0xFFFF +#define MIN_TXABSDELAY 0 + +/* Receive Interrupt Delay in units of 1.024 microseconds + * hardware will likely hang if you set this to anything but zero. + * + * Valid Range: 0-65535 + */ +E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); +#define DEFAULT_RDTR 0 +#define MAX_RXDELAY 0xFFFF +#define MIN_RXDELAY 0 + +/* Receive Absolute Interrupt Delay in units of 1.024 microseconds + * + * Valid Range: 0-65535 + */ +E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); +#define DEFAULT_RADV 8 +#define MAX_RXABSDELAY 0xFFFF +#define MIN_RXABSDELAY 0 + +/* Interrupt Throttle Rate (interrupts/sec) + * + * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative) + */ +E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); +#define DEFAULT_ITR 3 +#define MAX_ITR 100000 +#define MIN_ITR 100 + +/* Enable Smart Power Down of the PHY + * + * Valid Range: 0, 1 + * + * Default Value: 0 (disabled) + */ +E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down"); + +/* Enable Kumeran Lock Loss workaround + * + * Valid Range: 0, 1 + * + * Default Value: 1 (enabled) + */ +E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround"); + +struct e1000_option { + enum { enable_option, range_option, list_option } type; + const char *name; + const char *err; + int def; + union { + struct { /* range_option info */ + int min; + int max; + } r; + struct { /* list_option info */ + int nr; + const struct e1000_opt_list { int i; char *str; } *p; + } l; + } arg; +}; + +static int __devinit e1000_validate_option(unsigned int *value, + const struct e1000_option *opt, + struct e1000_adapter *adapter) +{ + if (*value == OPTION_UNSET) { + *value = opt->def; + return 0; + } + + switch (opt->type) { + case enable_option: + switch (*value) { + case OPTION_ENABLED: + DPRINTK(PROBE, INFO, "%s Enabled\n", opt->name); + return 0; + case OPTION_DISABLED: + DPRINTK(PROBE, INFO, "%s Disabled\n", opt->name); + return 0; + } + break; + case range_option: + if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { + DPRINTK(PROBE, INFO, + "%s set to %i\n", opt->name, *value); + return 0; + } + break; + case list_option: { + int i; + const struct e1000_opt_list *ent; + + for (i = 0; i < opt->arg.l.nr; i++) { + ent = &opt->arg.l.p[i]; + if (*value == ent->i) { + if (ent->str[0] != '\0') + DPRINTK(PROBE, INFO, "%s\n", ent->str); + return 0; + } + } + } + break; + default: + BUG(); + } + + DPRINTK(PROBE, INFO, "Invalid %s value specified (%i) %s\n", + opt->name, *value, opt->err); + *value = opt->def; + return -1; +} + +static void e1000_check_fiber_options(struct e1000_adapter *adapter); +static void e1000_check_copper_options(struct e1000_adapter *adapter); + +/** + * e1000_check_options - Range Checking for Command Line Parameters + * @adapter: board private structure + * + * This routine checks all command line parameters for valid user + * input. If an invalid value is given, or if no user specified + * value exists, a default value is used. The final value is stored + * in a variable in the adapter structure. + **/ + +void __devinit e1000_check_options(struct e1000_adapter *adapter) +{ + struct e1000_option opt; + int bd = adapter->bd_number; + + if (bd >= E1000_MAX_NIC) { + DPRINTK(PROBE, NOTICE, + "Warning: no configuration for board #%i\n", bd); + DPRINTK(PROBE, NOTICE, "Using defaults for all values\n"); + } + + { /* Transmit Descriptor Count */ + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Descriptors", + .err = "using default of " + __MODULE_STRING(E1000_DEFAULT_TXD), + .def = E1000_DEFAULT_TXD, + .arg = { .r = { + .min = E1000_MIN_TXD, + .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD + }} + }; + + if (num_TxDescriptors > bd) { + tx_ring->count = TxDescriptors[bd]; + e1000_validate_option(&tx_ring->count, &opt, adapter); + tx_ring->count = ALIGN(tx_ring->count, + REQ_TX_DESCRIPTOR_MULTIPLE); + } else { + tx_ring->count = opt.def; + } + for (i = 0; i < adapter->num_tx_queues; i++) + tx_ring[i].count = tx_ring->count; + } + { /* Receive Descriptor Count */ + struct e1000_rx_ring *rx_ring = adapter->rx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Descriptors", + .err = "using default of " + __MODULE_STRING(E1000_DEFAULT_RXD), + .def = E1000_DEFAULT_RXD, + .arg = { .r = { + .min = E1000_MIN_RXD, + .max = mac_type < e1000_82544 ? E1000_MAX_RXD : E1000_MAX_82544_RXD + }} + }; + + if (num_RxDescriptors > bd) { + rx_ring->count = RxDescriptors[bd]; + e1000_validate_option(&rx_ring->count, &opt, adapter); + rx_ring->count = ALIGN(rx_ring->count, + REQ_RX_DESCRIPTOR_MULTIPLE); + } else { + rx_ring->count = opt.def; + } + for (i = 0; i < adapter->num_rx_queues; i++) + rx_ring[i].count = rx_ring->count; + } + { /* Checksum Offload Enable/Disable */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "Checksum Offload", + .err = "defaulting to Enabled", + .def = OPTION_ENABLED + }; + + if (num_XsumRX > bd) { + unsigned int rx_csum = XsumRX[bd]; + e1000_validate_option(&rx_csum, &opt, adapter); + adapter->rx_csum = rx_csum; + } else { + adapter->rx_csum = opt.def; + } + } + { /* Flow Control */ + + struct e1000_opt_list fc_list[] = + {{ E1000_FC_NONE, "Flow Control Disabled" }, + { E1000_FC_RX_PAUSE,"Flow Control Receive Only" }, + { E1000_FC_TX_PAUSE,"Flow Control Transmit Only" }, + { E1000_FC_FULL, "Flow Control Enabled" }, + { E1000_FC_DEFAULT, "Flow Control Hardware Default" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Flow Control", + .err = "reading default settings from EEPROM", + .def = E1000_FC_DEFAULT, + .arg = { .l = { .nr = ARRAY_SIZE(fc_list), + .p = fc_list }} + }; + + if (num_FlowControl > bd) { + unsigned int fc = FlowControl[bd]; + e1000_validate_option(&fc, &opt, adapter); + adapter->hw.fc = adapter->hw.original_fc = fc; + } else { + adapter->hw.fc = adapter->hw.original_fc = opt.def; + } + } + { /* Transmit Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_TIDV), + .def = DEFAULT_TIDV, + .arg = { .r = { .min = MIN_TXDELAY, + .max = MAX_TXDELAY }} + }; + + if (num_TxIntDelay > bd) { + adapter->tx_int_delay = TxIntDelay[bd]; + e1000_validate_option(&adapter->tx_int_delay, &opt, + adapter); + } else { + adapter->tx_int_delay = opt.def; + } + } + { /* Transmit Absolute Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Absolute Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_TADV), + .def = DEFAULT_TADV, + .arg = { .r = { .min = MIN_TXABSDELAY, + .max = MAX_TXABSDELAY }} + }; + + if (num_TxAbsIntDelay > bd) { + adapter->tx_abs_int_delay = TxAbsIntDelay[bd]; + e1000_validate_option(&adapter->tx_abs_int_delay, &opt, + adapter); + } else { + adapter->tx_abs_int_delay = opt.def; + } + } + { /* Receive Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_RDTR), + .def = DEFAULT_RDTR, + .arg = { .r = { .min = MIN_RXDELAY, + .max = MAX_RXDELAY }} + }; + + if (num_RxIntDelay > bd) { + adapter->rx_int_delay = RxIntDelay[bd]; + e1000_validate_option(&adapter->rx_int_delay, &opt, + adapter); + } else { + adapter->rx_int_delay = opt.def; + } + } + { /* Receive Absolute Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Absolute Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_RADV), + .def = DEFAULT_RADV, + .arg = { .r = { .min = MIN_RXABSDELAY, + .max = MAX_RXABSDELAY }} + }; + + if (num_RxAbsIntDelay > bd) { + adapter->rx_abs_int_delay = RxAbsIntDelay[bd]; + e1000_validate_option(&adapter->rx_abs_int_delay, &opt, + adapter); + } else { + adapter->rx_abs_int_delay = opt.def; + } + } + { /* Interrupt Throttling Rate */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Interrupt Throttling Rate (ints/sec)", + .err = "using default of " __MODULE_STRING(DEFAULT_ITR), + .def = DEFAULT_ITR, + .arg = { .r = { .min = MIN_ITR, + .max = MAX_ITR }} + }; + + if (num_InterruptThrottleRate > bd) { + adapter->itr = InterruptThrottleRate[bd]; + switch (adapter->itr) { + case 0: + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + break; + case 1: + DPRINTK(PROBE, INFO, "%s set to dynamic mode\n", + opt.name); + adapter->itr_setting = adapter->itr; + adapter->itr = 20000; + break; + case 3: + DPRINTK(PROBE, INFO, + "%s set to dynamic conservative mode\n", + opt.name); + adapter->itr_setting = adapter->itr; + adapter->itr = 20000; + break; + default: + e1000_validate_option(&adapter->itr, &opt, + adapter); + /* save the setting, because the dynamic bits change itr */ + /* clear the lower two bits because they are + * used as control */ + adapter->itr_setting = adapter->itr & ~3; + break; + } + } else { + adapter->itr_setting = opt.def; + adapter->itr = 20000; + } + } + { /* Smart Power Down */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "PHY Smart Power Down", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED + }; + + if (num_SmartPowerDownEnable > bd) { + unsigned int spd = SmartPowerDownEnable[bd]; + e1000_validate_option(&spd, &opt, adapter); + adapter->smart_power_down = spd; + } else { + adapter->smart_power_down = opt.def; + } + } + { /* Kumeran Lock Loss Workaround */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "Kumeran Lock Loss Workaround", + .err = "defaulting to Enabled", + .def = OPTION_ENABLED + }; + + if (num_KumeranLockLoss > bd) { + unsigned int kmrn_lock_loss = KumeranLockLoss[bd]; + e1000_validate_option(&kmrn_lock_loss, &opt, adapter); + adapter->hw.kmrn_lock_loss_workaround_disabled = !kmrn_lock_loss; + } else { + adapter->hw.kmrn_lock_loss_workaround_disabled = !opt.def; + } + } + + switch (adapter->hw.media_type) { + case e1000_media_type_fiber: + case e1000_media_type_internal_serdes: + e1000_check_fiber_options(adapter); + break; + case e1000_media_type_copper: + e1000_check_copper_options(adapter); + break; + default: + BUG(); + } +} + +/** + * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version + * @adapter: board private structure + * + * Handles speed and duplex options on fiber adapters + **/ + +static void __devinit e1000_check_fiber_options(struct e1000_adapter *adapter) +{ + int bd = adapter->bd_number; + if (num_Speed > bd) { + DPRINTK(PROBE, INFO, "Speed not valid for fiber adapters, " + "parameter ignored\n"); + } + + if (num_Duplex > bd) { + DPRINTK(PROBE, INFO, "Duplex not valid for fiber adapters, " + "parameter ignored\n"); + } + + if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) { + DPRINTK(PROBE, INFO, "AutoNeg other than 1000/Full is " + "not valid for fiber adapters, " + "parameter ignored\n"); + } +} + +/** + * e1000_check_copper_options - Range Checking for Link Options, Copper Version + * @adapter: board private structure + * + * Handles speed and duplex options on copper adapters + **/ + +static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter) +{ + struct e1000_option opt; + unsigned int speed, dplx, an; + int bd = adapter->bd_number; + + { /* Speed */ + static const struct e1000_opt_list speed_list[] = { + { 0, "" }, + { SPEED_10, "" }, + { SPEED_100, "" }, + { SPEED_1000, "" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Speed", + .err = "parameter ignored", + .def = 0, + .arg = { .l = { .nr = ARRAY_SIZE(speed_list), + .p = speed_list }} + }; + + if (num_Speed > bd) { + speed = Speed[bd]; + e1000_validate_option(&speed, &opt, adapter); + } else { + speed = opt.def; + } + } + { /* Duplex */ + static const struct e1000_opt_list dplx_list[] = { + { 0, "" }, + { HALF_DUPLEX, "" }, + { FULL_DUPLEX, "" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Duplex", + .err = "parameter ignored", + .def = 0, + .arg = { .l = { .nr = ARRAY_SIZE(dplx_list), + .p = dplx_list }} + }; + + if (e1000_check_phy_reset_block(&adapter->hw)) { + DPRINTK(PROBE, INFO, + "Link active due to SoL/IDER Session. " + "Speed/Duplex/AutoNeg parameter ignored.\n"); + return; + } + if (num_Duplex > bd) { + dplx = Duplex[bd]; + e1000_validate_option(&dplx, &opt, adapter); + } else { + dplx = opt.def; + } + } + + if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) { + DPRINTK(PROBE, INFO, + "AutoNeg specified along with Speed or Duplex, " + "parameter ignored\n"); + adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT; + } else { /* Autoneg */ + static const struct e1000_opt_list an_list[] = + #define AA "AutoNeg advertising " + {{ 0x01, AA "10/HD" }, + { 0x02, AA "10/FD" }, + { 0x03, AA "10/FD, 10/HD" }, + { 0x04, AA "100/HD" }, + { 0x05, AA "100/HD, 10/HD" }, + { 0x06, AA "100/HD, 10/FD" }, + { 0x07, AA "100/HD, 10/FD, 10/HD" }, + { 0x08, AA "100/FD" }, + { 0x09, AA "100/FD, 10/HD" }, + { 0x0a, AA "100/FD, 10/FD" }, + { 0x0b, AA "100/FD, 10/FD, 10/HD" }, + { 0x0c, AA "100/FD, 100/HD" }, + { 0x0d, AA "100/FD, 100/HD, 10/HD" }, + { 0x0e, AA "100/FD, 100/HD, 10/FD" }, + { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" }, + { 0x20, AA "1000/FD" }, + { 0x21, AA "1000/FD, 10/HD" }, + { 0x22, AA "1000/FD, 10/FD" }, + { 0x23, AA "1000/FD, 10/FD, 10/HD" }, + { 0x24, AA "1000/FD, 100/HD" }, + { 0x25, AA "1000/FD, 100/HD, 10/HD" }, + { 0x26, AA "1000/FD, 100/HD, 10/FD" }, + { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" }, + { 0x28, AA "1000/FD, 100/FD" }, + { 0x29, AA "1000/FD, 100/FD, 10/HD" }, + { 0x2a, AA "1000/FD, 100/FD, 10/FD" }, + { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" }, + { 0x2c, AA "1000/FD, 100/FD, 100/HD" }, + { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" }, + { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" }, + { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "AutoNeg", + .err = "parameter ignored", + .def = AUTONEG_ADV_DEFAULT, + .arg = { .l = { .nr = ARRAY_SIZE(an_list), + .p = an_list }} + }; + + if (num_AutoNeg > bd) { + an = AutoNeg[bd]; + e1000_validate_option(&an, &opt, adapter); + } else { + an = opt.def; + } + adapter->hw.autoneg_advertised = an; + } + + switch (speed + dplx) { + case 0: + adapter->hw.autoneg = adapter->fc_autoneg = 1; + if ((num_Speed > bd) && (speed != 0 || dplx != 0)) + DPRINTK(PROBE, INFO, + "Speed and duplex autonegotiation enabled\n"); + break; + case HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Half Duplex specified without Speed\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "Half Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | + ADVERTISE_100_HALF; + break; + case FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Full Duplex specified without Speed\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "Full Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_FULL | + ADVERTISE_100_FULL | + ADVERTISE_1000_FULL; + break; + case SPEED_10: + DPRINTK(PROBE, INFO, "10 Mbps Speed specified " + "without Duplex\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at 10 Mbps only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | + ADVERTISE_10_FULL; + break; + case SPEED_10 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Half Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_10_half; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_10 + FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Full Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_10_full; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_100: + DPRINTK(PROBE, INFO, "100 Mbps Speed specified " + "without Duplex\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "100 Mbps only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_100_HALF | + ADVERTISE_100_FULL; + break; + case SPEED_100 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Half Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_100_half; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_100 + FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Full Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_100_full; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_1000: + DPRINTK(PROBE, INFO, "1000 Mbps Speed specified without " + "Duplex\n"); + goto full_duplex_only; + case SPEED_1000 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, + "Half Duplex is not supported at 1000 Mbps\n"); + /* fall through */ + case SPEED_1000 + FULL_DUPLEX: +full_duplex_only: + DPRINTK(PROBE, INFO, + "Using Autonegotiation at 1000 Mbps Full Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL; + break; + default: + BUG(); + } + + /* Speed, AutoNeg and MDI/MDI-X must all play nice */ + if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) { + DPRINTK(PROBE, INFO, + "Speed, AutoNeg and MDI-X specifications are " + "incompatible. Setting MDI-X to a compatible value.\n"); + } +} + diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_param-2.6.33-ethercat.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_param-2.6.33-ethercat.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,770 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include "e1000-2.6.33-ethercat.h" + +/* This is the only thing that needs to be changed to adjust the + * maximum number of ports that the driver can manage. + */ + +#define E1000_MAX_NIC 32 + +#define OPTION_UNSET -1 +#define OPTION_DISABLED 0 +#define OPTION_ENABLED 1 + +/* All parameters are treated the same, as an integer array of values. + * This macro just reduces the need to repeat the same declaration code + * over and over (plus this helps to avoid typo bugs). + */ + +#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET } +#define E1000_PARAM(X, desc) \ + static int __devinitdata X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \ + static unsigned int num_##X; \ + module_param_array_named(X, X, int, &num_##X, 0); \ + MODULE_PARM_DESC(X, desc); + +/* Transmit Descriptor Count + * + * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers + * Valid Range: 80-4096 for 82544 and newer + * + * Default Value: 256 + */ +E1000_PARAM(TxDescriptors, "Number of transmit descriptors"); + +/* Receive Descriptor Count + * + * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers + * Valid Range: 80-4096 for 82544 and newer + * + * Default Value: 256 + */ +E1000_PARAM(RxDescriptors, "Number of receive descriptors"); + +/* User Specified Speed Override + * + * Valid Range: 0, 10, 100, 1000 + * - 0 - auto-negotiate at all supported speeds + * - 10 - only link at 10 Mbps + * - 100 - only link at 100 Mbps + * - 1000 - only link at 1000 Mbps + * + * Default Value: 0 + */ +E1000_PARAM(Speed, "Speed setting"); + +/* User Specified Duplex Override + * + * Valid Range: 0-2 + * - 0 - auto-negotiate for duplex + * - 1 - only link at half duplex + * - 2 - only link at full duplex + * + * Default Value: 0 + */ +E1000_PARAM(Duplex, "Duplex setting"); + +/* Auto-negotiation Advertisement Override + * + * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber) + * + * The AutoNeg value is a bit mask describing which speed and duplex + * combinations should be advertised during auto-negotiation. + * The supported speed and duplex modes are listed below + * + * Bit 7 6 5 4 3 2 1 0 + * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10 + * Duplex Full Full Half Full Half + * + * Default Value: 0x2F (copper); 0x20 (fiber) + */ +E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting"); +#define AUTONEG_ADV_DEFAULT 0x2F +#define AUTONEG_ADV_MASK 0x2F + +/* User Specified Flow Control Override + * + * Valid Range: 0-3 + * - 0 - No Flow Control + * - 1 - Rx only, respond to PAUSE frames but do not generate them + * - 2 - Tx only, generate PAUSE frames but ignore them on receive + * - 3 - Full Flow Control Support + * + * Default Value: Read flow control settings from the EEPROM + */ +E1000_PARAM(FlowControl, "Flow Control setting"); +#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL + +/* XsumRX - Receive Checksum Offload Enable/Disable + * + * Valid Range: 0, 1 + * - 0 - disables all checksum offload + * - 1 - enables receive IP/TCP/UDP checksum offload + * on 82543 and newer -based NICs + * + * Default Value: 1 + */ +E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload"); + +/* Transmit Interrupt Delay in units of 1.024 microseconds + * Tx interrupt delay needs to typically be set to something non zero + * + * Valid Range: 0-65535 + */ +E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay"); +#define DEFAULT_TIDV 8 +#define MAX_TXDELAY 0xFFFF +#define MIN_TXDELAY 0 + +/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds + * + * Valid Range: 0-65535 + */ +E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay"); +#define DEFAULT_TADV 32 +#define MAX_TXABSDELAY 0xFFFF +#define MIN_TXABSDELAY 0 + +/* Receive Interrupt Delay in units of 1.024 microseconds + * hardware will likely hang if you set this to anything but zero. + * + * Valid Range: 0-65535 + */ +E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); +#define DEFAULT_RDTR 0 +#define MAX_RXDELAY 0xFFFF +#define MIN_RXDELAY 0 + +/* Receive Absolute Interrupt Delay in units of 1.024 microseconds + * + * Valid Range: 0-65535 + */ +E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); +#define DEFAULT_RADV 8 +#define MAX_RXABSDELAY 0xFFFF +#define MIN_RXABSDELAY 0 + +/* Interrupt Throttle Rate (interrupts/sec) + * + * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative) + */ +E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); +#define DEFAULT_ITR 3 +#define MAX_ITR 100000 +#define MIN_ITR 100 + +/* Enable Smart Power Down of the PHY + * + * Valid Range: 0, 1 + * + * Default Value: 0 (disabled) + */ +E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down"); + +/* Enable Kumeran Lock Loss workaround + * + * Valid Range: 0, 1 + * + * Default Value: 1 (enabled) + */ +E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround"); + +struct e1000_option { + enum { enable_option, range_option, list_option } type; + const char *name; + const char *err; + int def; + union { + struct { /* range_option info */ + int min; + int max; + } r; + struct { /* list_option info */ + int nr; + const struct e1000_opt_list { int i; char *str; } *p; + } l; + } arg; +}; + +static int __devinit e1000_validate_option(unsigned int *value, + const struct e1000_option *opt, + struct e1000_adapter *adapter) +{ + if (*value == OPTION_UNSET) { + *value = opt->def; + return 0; + } + + switch (opt->type) { + case enable_option: + switch (*value) { + case OPTION_ENABLED: + DPRINTK(PROBE, INFO, "%s Enabled\n", opt->name); + return 0; + case OPTION_DISABLED: + DPRINTK(PROBE, INFO, "%s Disabled\n", opt->name); + return 0; + } + break; + case range_option: + if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { + DPRINTK(PROBE, INFO, + "%s set to %i\n", opt->name, *value); + return 0; + } + break; + case list_option: { + int i; + const struct e1000_opt_list *ent; + + for (i = 0; i < opt->arg.l.nr; i++) { + ent = &opt->arg.l.p[i]; + if (*value == ent->i) { + if (ent->str[0] != '\0') + DPRINTK(PROBE, INFO, "%s\n", ent->str); + return 0; + } + } + } + break; + default: + BUG(); + } + + DPRINTK(PROBE, INFO, "Invalid %s value specified (%i) %s\n", + opt->name, *value, opt->err); + *value = opt->def; + return -1; +} + +static void e1000_check_fiber_options(struct e1000_adapter *adapter); +static void e1000_check_copper_options(struct e1000_adapter *adapter); + +/** + * e1000_check_options - Range Checking for Command Line Parameters + * @adapter: board private structure + * + * This routine checks all command line parameters for valid user + * input. If an invalid value is given, or if no user specified + * value exists, a default value is used. The final value is stored + * in a variable in the adapter structure. + **/ + +void __devinit e1000_check_options(struct e1000_adapter *adapter) +{ + struct e1000_option opt; + int bd = adapter->bd_number; + + if (bd >= E1000_MAX_NIC) { + DPRINTK(PROBE, NOTICE, + "Warning: no configuration for board #%i\n", bd); + DPRINTK(PROBE, NOTICE, "Using defaults for all values\n"); + } + + { /* Transmit Descriptor Count */ + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Descriptors", + .err = "using default of " + __MODULE_STRING(E1000_DEFAULT_TXD), + .def = E1000_DEFAULT_TXD, + .arg = { .r = { + .min = E1000_MIN_TXD, + .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD + }} + }; + + if (num_TxDescriptors > bd) { + tx_ring->count = TxDescriptors[bd]; + e1000_validate_option(&tx_ring->count, &opt, adapter); + tx_ring->count = ALIGN(tx_ring->count, + REQ_TX_DESCRIPTOR_MULTIPLE); + } else { + tx_ring->count = opt.def; + } + for (i = 0; i < adapter->num_tx_queues; i++) + tx_ring[i].count = tx_ring->count; + } + { /* Receive Descriptor Count */ + struct e1000_rx_ring *rx_ring = adapter->rx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Descriptors", + .err = "using default of " + __MODULE_STRING(E1000_DEFAULT_RXD), + .def = E1000_DEFAULT_RXD, + .arg = { .r = { + .min = E1000_MIN_RXD, + .max = mac_type < e1000_82544 ? E1000_MAX_RXD : E1000_MAX_82544_RXD + }} + }; + + if (num_RxDescriptors > bd) { + rx_ring->count = RxDescriptors[bd]; + e1000_validate_option(&rx_ring->count, &opt, adapter); + rx_ring->count = ALIGN(rx_ring->count, + REQ_RX_DESCRIPTOR_MULTIPLE); + } else { + rx_ring->count = opt.def; + } + for (i = 0; i < adapter->num_rx_queues; i++) + rx_ring[i].count = rx_ring->count; + } + { /* Checksum Offload Enable/Disable */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "Checksum Offload", + .err = "defaulting to Enabled", + .def = OPTION_ENABLED + }; + + if (num_XsumRX > bd) { + unsigned int rx_csum = XsumRX[bd]; + e1000_validate_option(&rx_csum, &opt, adapter); + adapter->rx_csum = rx_csum; + } else { + adapter->rx_csum = opt.def; + } + } + { /* Flow Control */ + + struct e1000_opt_list fc_list[] = + {{ E1000_FC_NONE, "Flow Control Disabled" }, + { E1000_FC_RX_PAUSE,"Flow Control Receive Only" }, + { E1000_FC_TX_PAUSE,"Flow Control Transmit Only" }, + { E1000_FC_FULL, "Flow Control Enabled" }, + { E1000_FC_DEFAULT, "Flow Control Hardware Default" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Flow Control", + .err = "reading default settings from EEPROM", + .def = E1000_FC_DEFAULT, + .arg = { .l = { .nr = ARRAY_SIZE(fc_list), + .p = fc_list }} + }; + + if (num_FlowControl > bd) { + unsigned int fc = FlowControl[bd]; + e1000_validate_option(&fc, &opt, adapter); + adapter->hw.fc = adapter->hw.original_fc = fc; + } else { + adapter->hw.fc = adapter->hw.original_fc = opt.def; + } + } + { /* Transmit Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_TIDV), + .def = DEFAULT_TIDV, + .arg = { .r = { .min = MIN_TXDELAY, + .max = MAX_TXDELAY }} + }; + + if (num_TxIntDelay > bd) { + adapter->tx_int_delay = TxIntDelay[bd]; + e1000_validate_option(&adapter->tx_int_delay, &opt, + adapter); + } else { + adapter->tx_int_delay = opt.def; + } + } + { /* Transmit Absolute Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Absolute Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_TADV), + .def = DEFAULT_TADV, + .arg = { .r = { .min = MIN_TXABSDELAY, + .max = MAX_TXABSDELAY }} + }; + + if (num_TxAbsIntDelay > bd) { + adapter->tx_abs_int_delay = TxAbsIntDelay[bd]; + e1000_validate_option(&adapter->tx_abs_int_delay, &opt, + adapter); + } else { + adapter->tx_abs_int_delay = opt.def; + } + } + { /* Receive Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_RDTR), + .def = DEFAULT_RDTR, + .arg = { .r = { .min = MIN_RXDELAY, + .max = MAX_RXDELAY }} + }; + + if (num_RxIntDelay > bd) { + adapter->rx_int_delay = RxIntDelay[bd]; + e1000_validate_option(&adapter->rx_int_delay, &opt, + adapter); + } else { + adapter->rx_int_delay = opt.def; + } + } + { /* Receive Absolute Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Absolute Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_RADV), + .def = DEFAULT_RADV, + .arg = { .r = { .min = MIN_RXABSDELAY, + .max = MAX_RXABSDELAY }} + }; + + if (num_RxAbsIntDelay > bd) { + adapter->rx_abs_int_delay = RxAbsIntDelay[bd]; + e1000_validate_option(&adapter->rx_abs_int_delay, &opt, + adapter); + } else { + adapter->rx_abs_int_delay = opt.def; + } + } + { /* Interrupt Throttling Rate */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Interrupt Throttling Rate (ints/sec)", + .err = "using default of " __MODULE_STRING(DEFAULT_ITR), + .def = DEFAULT_ITR, + .arg = { .r = { .min = MIN_ITR, + .max = MAX_ITR }} + }; + + if (num_InterruptThrottleRate > bd) { + adapter->itr = InterruptThrottleRate[bd]; + switch (adapter->itr) { + case 0: + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + break; + case 1: + DPRINTK(PROBE, INFO, "%s set to dynamic mode\n", + opt.name); + adapter->itr_setting = adapter->itr; + adapter->itr = 20000; + break; + case 3: + DPRINTK(PROBE, INFO, + "%s set to dynamic conservative mode\n", + opt.name); + adapter->itr_setting = adapter->itr; + adapter->itr = 20000; + break; + default: + e1000_validate_option(&adapter->itr, &opt, + adapter); + /* save the setting, because the dynamic bits change itr */ + /* clear the lower two bits because they are + * used as control */ + adapter->itr_setting = adapter->itr & ~3; + break; + } + } else { + adapter->itr_setting = opt.def; + adapter->itr = 20000; + } + } + { /* Smart Power Down */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "PHY Smart Power Down", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED + }; + + if (num_SmartPowerDownEnable > bd) { + unsigned int spd = SmartPowerDownEnable[bd]; + e1000_validate_option(&spd, &opt, adapter); + adapter->smart_power_down = spd; + } else { + adapter->smart_power_down = opt.def; + } + } + + switch (adapter->hw.media_type) { + case e1000_media_type_fiber: + case e1000_media_type_internal_serdes: + e1000_check_fiber_options(adapter); + break; + case e1000_media_type_copper: + e1000_check_copper_options(adapter); + break; + default: + BUG(); + } +} + +/** + * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version + * @adapter: board private structure + * + * Handles speed and duplex options on fiber adapters + **/ + +static void __devinit e1000_check_fiber_options(struct e1000_adapter *adapter) +{ + int bd = adapter->bd_number; + if (num_Speed > bd) { + DPRINTK(PROBE, INFO, "Speed not valid for fiber adapters, " + "parameter ignored\n"); + } + + if (num_Duplex > bd) { + DPRINTK(PROBE, INFO, "Duplex not valid for fiber adapters, " + "parameter ignored\n"); + } + + if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) { + DPRINTK(PROBE, INFO, "AutoNeg other than 1000/Full is " + "not valid for fiber adapters, " + "parameter ignored\n"); + } +} + +/** + * e1000_check_copper_options - Range Checking for Link Options, Copper Version + * @adapter: board private structure + * + * Handles speed and duplex options on copper adapters + **/ + +static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter) +{ + struct e1000_option opt; + unsigned int speed, dplx, an; + int bd = adapter->bd_number; + + { /* Speed */ + static const struct e1000_opt_list speed_list[] = { + { 0, "" }, + { SPEED_10, "" }, + { SPEED_100, "" }, + { SPEED_1000, "" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Speed", + .err = "parameter ignored", + .def = 0, + .arg = { .l = { .nr = ARRAY_SIZE(speed_list), + .p = speed_list }} + }; + + if (num_Speed > bd) { + speed = Speed[bd]; + e1000_validate_option(&speed, &opt, adapter); + } else { + speed = opt.def; + } + } + { /* Duplex */ + static const struct e1000_opt_list dplx_list[] = { + { 0, "" }, + { HALF_DUPLEX, "" }, + { FULL_DUPLEX, "" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Duplex", + .err = "parameter ignored", + .def = 0, + .arg = { .l = { .nr = ARRAY_SIZE(dplx_list), + .p = dplx_list }} + }; + + if (num_Duplex > bd) { + dplx = Duplex[bd]; + e1000_validate_option(&dplx, &opt, adapter); + } else { + dplx = opt.def; + } + } + + if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) { + DPRINTK(PROBE, INFO, + "AutoNeg specified along with Speed or Duplex, " + "parameter ignored\n"); + adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT; + } else { /* Autoneg */ + static const struct e1000_opt_list an_list[] = + #define AA "AutoNeg advertising " + {{ 0x01, AA "10/HD" }, + { 0x02, AA "10/FD" }, + { 0x03, AA "10/FD, 10/HD" }, + { 0x04, AA "100/HD" }, + { 0x05, AA "100/HD, 10/HD" }, + { 0x06, AA "100/HD, 10/FD" }, + { 0x07, AA "100/HD, 10/FD, 10/HD" }, + { 0x08, AA "100/FD" }, + { 0x09, AA "100/FD, 10/HD" }, + { 0x0a, AA "100/FD, 10/FD" }, + { 0x0b, AA "100/FD, 10/FD, 10/HD" }, + { 0x0c, AA "100/FD, 100/HD" }, + { 0x0d, AA "100/FD, 100/HD, 10/HD" }, + { 0x0e, AA "100/FD, 100/HD, 10/FD" }, + { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" }, + { 0x20, AA "1000/FD" }, + { 0x21, AA "1000/FD, 10/HD" }, + { 0x22, AA "1000/FD, 10/FD" }, + { 0x23, AA "1000/FD, 10/FD, 10/HD" }, + { 0x24, AA "1000/FD, 100/HD" }, + { 0x25, AA "1000/FD, 100/HD, 10/HD" }, + { 0x26, AA "1000/FD, 100/HD, 10/FD" }, + { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" }, + { 0x28, AA "1000/FD, 100/FD" }, + { 0x29, AA "1000/FD, 100/FD, 10/HD" }, + { 0x2a, AA "1000/FD, 100/FD, 10/FD" }, + { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" }, + { 0x2c, AA "1000/FD, 100/FD, 100/HD" }, + { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" }, + { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" }, + { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "AutoNeg", + .err = "parameter ignored", + .def = AUTONEG_ADV_DEFAULT, + .arg = { .l = { .nr = ARRAY_SIZE(an_list), + .p = an_list }} + }; + + if (num_AutoNeg > bd) { + an = AutoNeg[bd]; + e1000_validate_option(&an, &opt, adapter); + } else { + an = opt.def; + } + adapter->hw.autoneg_advertised = an; + } + + switch (speed + dplx) { + case 0: + adapter->hw.autoneg = adapter->fc_autoneg = 1; + if ((num_Speed > bd) && (speed != 0 || dplx != 0)) + DPRINTK(PROBE, INFO, + "Speed and duplex autonegotiation enabled\n"); + break; + case HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Half Duplex specified without Speed\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "Half Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | + ADVERTISE_100_HALF; + break; + case FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Full Duplex specified without Speed\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "Full Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_FULL | + ADVERTISE_100_FULL | + ADVERTISE_1000_FULL; + break; + case SPEED_10: + DPRINTK(PROBE, INFO, "10 Mbps Speed specified " + "without Duplex\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at 10 Mbps only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | + ADVERTISE_10_FULL; + break; + case SPEED_10 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Half Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_10_half; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_10 + FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Full Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_10_full; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_100: + DPRINTK(PROBE, INFO, "100 Mbps Speed specified " + "without Duplex\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "100 Mbps only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_100_HALF | + ADVERTISE_100_FULL; + break; + case SPEED_100 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Half Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_100_half; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_100 + FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Full Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_100_full; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_1000: + DPRINTK(PROBE, INFO, "1000 Mbps Speed specified without " + "Duplex\n"); + goto full_duplex_only; + case SPEED_1000 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, + "Half Duplex is not supported at 1000 Mbps\n"); + /* fall through */ + case SPEED_1000 + FULL_DUPLEX: +full_duplex_only: + DPRINTK(PROBE, INFO, + "Using Autonegotiation at 1000 Mbps Full Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL; + break; + default: + BUG(); + } + + /* Speed, AutoNeg and MDI/MDI-X must all play nice */ + if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) { + DPRINTK(PROBE, INFO, + "Speed, AutoNeg and MDI-X specifications are " + "incompatible. Setting MDI-X to a compatible value.\n"); + } +} + diff -r e9f722488fcd -r be807e224b0e devices/e1000/e1000_param-2.6.33-orig.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/devices/e1000/e1000_param-2.6.33-orig.c Sat Nov 27 17:02:54 2010 +0100 @@ -0,0 +1,770 @@ +/******************************************************************************* + + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include "e1000.h" + +/* This is the only thing that needs to be changed to adjust the + * maximum number of ports that the driver can manage. + */ + +#define E1000_MAX_NIC 32 + +#define OPTION_UNSET -1 +#define OPTION_DISABLED 0 +#define OPTION_ENABLED 1 + +/* All parameters are treated the same, as an integer array of values. + * This macro just reduces the need to repeat the same declaration code + * over and over (plus this helps to avoid typo bugs). + */ + +#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET } +#define E1000_PARAM(X, desc) \ + static int __devinitdata X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \ + static unsigned int num_##X; \ + module_param_array_named(X, X, int, &num_##X, 0); \ + MODULE_PARM_DESC(X, desc); + +/* Transmit Descriptor Count + * + * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers + * Valid Range: 80-4096 for 82544 and newer + * + * Default Value: 256 + */ +E1000_PARAM(TxDescriptors, "Number of transmit descriptors"); + +/* Receive Descriptor Count + * + * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers + * Valid Range: 80-4096 for 82544 and newer + * + * Default Value: 256 + */ +E1000_PARAM(RxDescriptors, "Number of receive descriptors"); + +/* User Specified Speed Override + * + * Valid Range: 0, 10, 100, 1000 + * - 0 - auto-negotiate at all supported speeds + * - 10 - only link at 10 Mbps + * - 100 - only link at 100 Mbps + * - 1000 - only link at 1000 Mbps + * + * Default Value: 0 + */ +E1000_PARAM(Speed, "Speed setting"); + +/* User Specified Duplex Override + * + * Valid Range: 0-2 + * - 0 - auto-negotiate for duplex + * - 1 - only link at half duplex + * - 2 - only link at full duplex + * + * Default Value: 0 + */ +E1000_PARAM(Duplex, "Duplex setting"); + +/* Auto-negotiation Advertisement Override + * + * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber) + * + * The AutoNeg value is a bit mask describing which speed and duplex + * combinations should be advertised during auto-negotiation. + * The supported speed and duplex modes are listed below + * + * Bit 7 6 5 4 3 2 1 0 + * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10 + * Duplex Full Full Half Full Half + * + * Default Value: 0x2F (copper); 0x20 (fiber) + */ +E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting"); +#define AUTONEG_ADV_DEFAULT 0x2F +#define AUTONEG_ADV_MASK 0x2F + +/* User Specified Flow Control Override + * + * Valid Range: 0-3 + * - 0 - No Flow Control + * - 1 - Rx only, respond to PAUSE frames but do not generate them + * - 2 - Tx only, generate PAUSE frames but ignore them on receive + * - 3 - Full Flow Control Support + * + * Default Value: Read flow control settings from the EEPROM + */ +E1000_PARAM(FlowControl, "Flow Control setting"); +#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL + +/* XsumRX - Receive Checksum Offload Enable/Disable + * + * Valid Range: 0, 1 + * - 0 - disables all checksum offload + * - 1 - enables receive IP/TCP/UDP checksum offload + * on 82543 and newer -based NICs + * + * Default Value: 1 + */ +E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload"); + +/* Transmit Interrupt Delay in units of 1.024 microseconds + * Tx interrupt delay needs to typically be set to something non zero + * + * Valid Range: 0-65535 + */ +E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay"); +#define DEFAULT_TIDV 8 +#define MAX_TXDELAY 0xFFFF +#define MIN_TXDELAY 0 + +/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds + * + * Valid Range: 0-65535 + */ +E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay"); +#define DEFAULT_TADV 32 +#define MAX_TXABSDELAY 0xFFFF +#define MIN_TXABSDELAY 0 + +/* Receive Interrupt Delay in units of 1.024 microseconds + * hardware will likely hang if you set this to anything but zero. + * + * Valid Range: 0-65535 + */ +E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); +#define DEFAULT_RDTR 0 +#define MAX_RXDELAY 0xFFFF +#define MIN_RXDELAY 0 + +/* Receive Absolute Interrupt Delay in units of 1.024 microseconds + * + * Valid Range: 0-65535 + */ +E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); +#define DEFAULT_RADV 8 +#define MAX_RXABSDELAY 0xFFFF +#define MIN_RXABSDELAY 0 + +/* Interrupt Throttle Rate (interrupts/sec) + * + * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative) + */ +E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); +#define DEFAULT_ITR 3 +#define MAX_ITR 100000 +#define MIN_ITR 100 + +/* Enable Smart Power Down of the PHY + * + * Valid Range: 0, 1 + * + * Default Value: 0 (disabled) + */ +E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down"); + +/* Enable Kumeran Lock Loss workaround + * + * Valid Range: 0, 1 + * + * Default Value: 1 (enabled) + */ +E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround"); + +struct e1000_option { + enum { enable_option, range_option, list_option } type; + const char *name; + const char *err; + int def; + union { + struct { /* range_option info */ + int min; + int max; + } r; + struct { /* list_option info */ + int nr; + const struct e1000_opt_list { int i; char *str; } *p; + } l; + } arg; +}; + +static int __devinit e1000_validate_option(unsigned int *value, + const struct e1000_option *opt, + struct e1000_adapter *adapter) +{ + if (*value == OPTION_UNSET) { + *value = opt->def; + return 0; + } + + switch (opt->type) { + case enable_option: + switch (*value) { + case OPTION_ENABLED: + DPRINTK(PROBE, INFO, "%s Enabled\n", opt->name); + return 0; + case OPTION_DISABLED: + DPRINTK(PROBE, INFO, "%s Disabled\n", opt->name); + return 0; + } + break; + case range_option: + if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { + DPRINTK(PROBE, INFO, + "%s set to %i\n", opt->name, *value); + return 0; + } + break; + case list_option: { + int i; + const struct e1000_opt_list *ent; + + for (i = 0; i < opt->arg.l.nr; i++) { + ent = &opt->arg.l.p[i]; + if (*value == ent->i) { + if (ent->str[0] != '\0') + DPRINTK(PROBE, INFO, "%s\n", ent->str); + return 0; + } + } + } + break; + default: + BUG(); + } + + DPRINTK(PROBE, INFO, "Invalid %s value specified (%i) %s\n", + opt->name, *value, opt->err); + *value = opt->def; + return -1; +} + +static void e1000_check_fiber_options(struct e1000_adapter *adapter); +static void e1000_check_copper_options(struct e1000_adapter *adapter); + +/** + * e1000_check_options - Range Checking for Command Line Parameters + * @adapter: board private structure + * + * This routine checks all command line parameters for valid user + * input. If an invalid value is given, or if no user specified + * value exists, a default value is used. The final value is stored + * in a variable in the adapter structure. + **/ + +void __devinit e1000_check_options(struct e1000_adapter *adapter) +{ + struct e1000_option opt; + int bd = adapter->bd_number; + + if (bd >= E1000_MAX_NIC) { + DPRINTK(PROBE, NOTICE, + "Warning: no configuration for board #%i\n", bd); + DPRINTK(PROBE, NOTICE, "Using defaults for all values\n"); + } + + { /* Transmit Descriptor Count */ + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Descriptors", + .err = "using default of " + __MODULE_STRING(E1000_DEFAULT_TXD), + .def = E1000_DEFAULT_TXD, + .arg = { .r = { + .min = E1000_MIN_TXD, + .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD + }} + }; + + if (num_TxDescriptors > bd) { + tx_ring->count = TxDescriptors[bd]; + e1000_validate_option(&tx_ring->count, &opt, adapter); + tx_ring->count = ALIGN(tx_ring->count, + REQ_TX_DESCRIPTOR_MULTIPLE); + } else { + tx_ring->count = opt.def; + } + for (i = 0; i < adapter->num_tx_queues; i++) + tx_ring[i].count = tx_ring->count; + } + { /* Receive Descriptor Count */ + struct e1000_rx_ring *rx_ring = adapter->rx_ring; + int i; + e1000_mac_type mac_type = adapter->hw.mac_type; + + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Descriptors", + .err = "using default of " + __MODULE_STRING(E1000_DEFAULT_RXD), + .def = E1000_DEFAULT_RXD, + .arg = { .r = { + .min = E1000_MIN_RXD, + .max = mac_type < e1000_82544 ? E1000_MAX_RXD : E1000_MAX_82544_RXD + }} + }; + + if (num_RxDescriptors > bd) { + rx_ring->count = RxDescriptors[bd]; + e1000_validate_option(&rx_ring->count, &opt, adapter); + rx_ring->count = ALIGN(rx_ring->count, + REQ_RX_DESCRIPTOR_MULTIPLE); + } else { + rx_ring->count = opt.def; + } + for (i = 0; i < adapter->num_rx_queues; i++) + rx_ring[i].count = rx_ring->count; + } + { /* Checksum Offload Enable/Disable */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "Checksum Offload", + .err = "defaulting to Enabled", + .def = OPTION_ENABLED + }; + + if (num_XsumRX > bd) { + unsigned int rx_csum = XsumRX[bd]; + e1000_validate_option(&rx_csum, &opt, adapter); + adapter->rx_csum = rx_csum; + } else { + adapter->rx_csum = opt.def; + } + } + { /* Flow Control */ + + struct e1000_opt_list fc_list[] = + {{ E1000_FC_NONE, "Flow Control Disabled" }, + { E1000_FC_RX_PAUSE,"Flow Control Receive Only" }, + { E1000_FC_TX_PAUSE,"Flow Control Transmit Only" }, + { E1000_FC_FULL, "Flow Control Enabled" }, + { E1000_FC_DEFAULT, "Flow Control Hardware Default" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Flow Control", + .err = "reading default settings from EEPROM", + .def = E1000_FC_DEFAULT, + .arg = { .l = { .nr = ARRAY_SIZE(fc_list), + .p = fc_list }} + }; + + if (num_FlowControl > bd) { + unsigned int fc = FlowControl[bd]; + e1000_validate_option(&fc, &opt, adapter); + adapter->hw.fc = adapter->hw.original_fc = fc; + } else { + adapter->hw.fc = adapter->hw.original_fc = opt.def; + } + } + { /* Transmit Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_TIDV), + .def = DEFAULT_TIDV, + .arg = { .r = { .min = MIN_TXDELAY, + .max = MAX_TXDELAY }} + }; + + if (num_TxIntDelay > bd) { + adapter->tx_int_delay = TxIntDelay[bd]; + e1000_validate_option(&adapter->tx_int_delay, &opt, + adapter); + } else { + adapter->tx_int_delay = opt.def; + } + } + { /* Transmit Absolute Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Transmit Absolute Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_TADV), + .def = DEFAULT_TADV, + .arg = { .r = { .min = MIN_TXABSDELAY, + .max = MAX_TXABSDELAY }} + }; + + if (num_TxAbsIntDelay > bd) { + adapter->tx_abs_int_delay = TxAbsIntDelay[bd]; + e1000_validate_option(&adapter->tx_abs_int_delay, &opt, + adapter); + } else { + adapter->tx_abs_int_delay = opt.def; + } + } + { /* Receive Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_RDTR), + .def = DEFAULT_RDTR, + .arg = { .r = { .min = MIN_RXDELAY, + .max = MAX_RXDELAY }} + }; + + if (num_RxIntDelay > bd) { + adapter->rx_int_delay = RxIntDelay[bd]; + e1000_validate_option(&adapter->rx_int_delay, &opt, + adapter); + } else { + adapter->rx_int_delay = opt.def; + } + } + { /* Receive Absolute Interrupt Delay */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Receive Absolute Interrupt Delay", + .err = "using default of " __MODULE_STRING(DEFAULT_RADV), + .def = DEFAULT_RADV, + .arg = { .r = { .min = MIN_RXABSDELAY, + .max = MAX_RXABSDELAY }} + }; + + if (num_RxAbsIntDelay > bd) { + adapter->rx_abs_int_delay = RxAbsIntDelay[bd]; + e1000_validate_option(&adapter->rx_abs_int_delay, &opt, + adapter); + } else { + adapter->rx_abs_int_delay = opt.def; + } + } + { /* Interrupt Throttling Rate */ + opt = (struct e1000_option) { + .type = range_option, + .name = "Interrupt Throttling Rate (ints/sec)", + .err = "using default of " __MODULE_STRING(DEFAULT_ITR), + .def = DEFAULT_ITR, + .arg = { .r = { .min = MIN_ITR, + .max = MAX_ITR }} + }; + + if (num_InterruptThrottleRate > bd) { + adapter->itr = InterruptThrottleRate[bd]; + switch (adapter->itr) { + case 0: + DPRINTK(PROBE, INFO, "%s turned off\n", + opt.name); + break; + case 1: + DPRINTK(PROBE, INFO, "%s set to dynamic mode\n", + opt.name); + adapter->itr_setting = adapter->itr; + adapter->itr = 20000; + break; + case 3: + DPRINTK(PROBE, INFO, + "%s set to dynamic conservative mode\n", + opt.name); + adapter->itr_setting = adapter->itr; + adapter->itr = 20000; + break; + default: + e1000_validate_option(&adapter->itr, &opt, + adapter); + /* save the setting, because the dynamic bits change itr */ + /* clear the lower two bits because they are + * used as control */ + adapter->itr_setting = adapter->itr & ~3; + break; + } + } else { + adapter->itr_setting = opt.def; + adapter->itr = 20000; + } + } + { /* Smart Power Down */ + opt = (struct e1000_option) { + .type = enable_option, + .name = "PHY Smart Power Down", + .err = "defaulting to Disabled", + .def = OPTION_DISABLED + }; + + if (num_SmartPowerDownEnable > bd) { + unsigned int spd = SmartPowerDownEnable[bd]; + e1000_validate_option(&spd, &opt, adapter); + adapter->smart_power_down = spd; + } else { + adapter->smart_power_down = opt.def; + } + } + + switch (adapter->hw.media_type) { + case e1000_media_type_fiber: + case e1000_media_type_internal_serdes: + e1000_check_fiber_options(adapter); + break; + case e1000_media_type_copper: + e1000_check_copper_options(adapter); + break; + default: + BUG(); + } +} + +/** + * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version + * @adapter: board private structure + * + * Handles speed and duplex options on fiber adapters + **/ + +static void __devinit e1000_check_fiber_options(struct e1000_adapter *adapter) +{ + int bd = adapter->bd_number; + if (num_Speed > bd) { + DPRINTK(PROBE, INFO, "Speed not valid for fiber adapters, " + "parameter ignored\n"); + } + + if (num_Duplex > bd) { + DPRINTK(PROBE, INFO, "Duplex not valid for fiber adapters, " + "parameter ignored\n"); + } + + if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) { + DPRINTK(PROBE, INFO, "AutoNeg other than 1000/Full is " + "not valid for fiber adapters, " + "parameter ignored\n"); + } +} + +/** + * e1000_check_copper_options - Range Checking for Link Options, Copper Version + * @adapter: board private structure + * + * Handles speed and duplex options on copper adapters + **/ + +static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter) +{ + struct e1000_option opt; + unsigned int speed, dplx, an; + int bd = adapter->bd_number; + + { /* Speed */ + static const struct e1000_opt_list speed_list[] = { + { 0, "" }, + { SPEED_10, "" }, + { SPEED_100, "" }, + { SPEED_1000, "" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Speed", + .err = "parameter ignored", + .def = 0, + .arg = { .l = { .nr = ARRAY_SIZE(speed_list), + .p = speed_list }} + }; + + if (num_Speed > bd) { + speed = Speed[bd]; + e1000_validate_option(&speed, &opt, adapter); + } else { + speed = opt.def; + } + } + { /* Duplex */ + static const struct e1000_opt_list dplx_list[] = { + { 0, "" }, + { HALF_DUPLEX, "" }, + { FULL_DUPLEX, "" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "Duplex", + .err = "parameter ignored", + .def = 0, + .arg = { .l = { .nr = ARRAY_SIZE(dplx_list), + .p = dplx_list }} + }; + + if (num_Duplex > bd) { + dplx = Duplex[bd]; + e1000_validate_option(&dplx, &opt, adapter); + } else { + dplx = opt.def; + } + } + + if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) { + DPRINTK(PROBE, INFO, + "AutoNeg specified along with Speed or Duplex, " + "parameter ignored\n"); + adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT; + } else { /* Autoneg */ + static const struct e1000_opt_list an_list[] = + #define AA "AutoNeg advertising " + {{ 0x01, AA "10/HD" }, + { 0x02, AA "10/FD" }, + { 0x03, AA "10/FD, 10/HD" }, + { 0x04, AA "100/HD" }, + { 0x05, AA "100/HD, 10/HD" }, + { 0x06, AA "100/HD, 10/FD" }, + { 0x07, AA "100/HD, 10/FD, 10/HD" }, + { 0x08, AA "100/FD" }, + { 0x09, AA "100/FD, 10/HD" }, + { 0x0a, AA "100/FD, 10/FD" }, + { 0x0b, AA "100/FD, 10/FD, 10/HD" }, + { 0x0c, AA "100/FD, 100/HD" }, + { 0x0d, AA "100/FD, 100/HD, 10/HD" }, + { 0x0e, AA "100/FD, 100/HD, 10/FD" }, + { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" }, + { 0x20, AA "1000/FD" }, + { 0x21, AA "1000/FD, 10/HD" }, + { 0x22, AA "1000/FD, 10/FD" }, + { 0x23, AA "1000/FD, 10/FD, 10/HD" }, + { 0x24, AA "1000/FD, 100/HD" }, + { 0x25, AA "1000/FD, 100/HD, 10/HD" }, + { 0x26, AA "1000/FD, 100/HD, 10/FD" }, + { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" }, + { 0x28, AA "1000/FD, 100/FD" }, + { 0x29, AA "1000/FD, 100/FD, 10/HD" }, + { 0x2a, AA "1000/FD, 100/FD, 10/FD" }, + { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" }, + { 0x2c, AA "1000/FD, 100/FD, 100/HD" }, + { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" }, + { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" }, + { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }}; + + opt = (struct e1000_option) { + .type = list_option, + .name = "AutoNeg", + .err = "parameter ignored", + .def = AUTONEG_ADV_DEFAULT, + .arg = { .l = { .nr = ARRAY_SIZE(an_list), + .p = an_list }} + }; + + if (num_AutoNeg > bd) { + an = AutoNeg[bd]; + e1000_validate_option(&an, &opt, adapter); + } else { + an = opt.def; + } + adapter->hw.autoneg_advertised = an; + } + + switch (speed + dplx) { + case 0: + adapter->hw.autoneg = adapter->fc_autoneg = 1; + if ((num_Speed > bd) && (speed != 0 || dplx != 0)) + DPRINTK(PROBE, INFO, + "Speed and duplex autonegotiation enabled\n"); + break; + case HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Half Duplex specified without Speed\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "Half Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | + ADVERTISE_100_HALF; + break; + case FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Full Duplex specified without Speed\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "Full Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_FULL | + ADVERTISE_100_FULL | + ADVERTISE_1000_FULL; + break; + case SPEED_10: + DPRINTK(PROBE, INFO, "10 Mbps Speed specified " + "without Duplex\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at 10 Mbps only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_10_HALF | + ADVERTISE_10_FULL; + break; + case SPEED_10 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Half Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_10_half; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_10 + FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Full Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_10_full; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_100: + DPRINTK(PROBE, INFO, "100 Mbps Speed specified " + "without Duplex\n"); + DPRINTK(PROBE, INFO, "Using Autonegotiation at " + "100 Mbps only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_100_HALF | + ADVERTISE_100_FULL; + break; + case SPEED_100 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Half Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_100_half; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_100 + FULL_DUPLEX: + DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Full Duplex\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 0; + adapter->hw.forced_speed_duplex = e1000_100_full; + adapter->hw.autoneg_advertised = 0; + break; + case SPEED_1000: + DPRINTK(PROBE, INFO, "1000 Mbps Speed specified without " + "Duplex\n"); + goto full_duplex_only; + case SPEED_1000 + HALF_DUPLEX: + DPRINTK(PROBE, INFO, + "Half Duplex is not supported at 1000 Mbps\n"); + /* fall through */ + case SPEED_1000 + FULL_DUPLEX: +full_duplex_only: + DPRINTK(PROBE, INFO, + "Using Autonegotiation at 1000 Mbps Full Duplex only\n"); + adapter->hw.autoneg = adapter->fc_autoneg = 1; + adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL; + break; + default: + BUG(); + } + + /* Speed, AutoNeg and MDI/MDI-X must all play nice */ + if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) { + DPRINTK(PROBE, INFO, + "Speed, AutoNeg and MDI-X specifications are " + "incompatible. Setting MDI-X to a compatible value.\n"); + } +} + diff -r e9f722488fcd -r be807e224b0e include/ecrt.h --- a/include/ecrt.h Mon Oct 25 17:06:45 2010 +0200 +++ b/include/ecrt.h Sat Nov 27 17:02:54 2010 +0100 @@ -5,7 +5,7 @@ * Copyright (C) 2006-2008 Florian Pose, Ingenieurgemeinschaft IgH * * This file is part of the IgH EtherCAT master userspace library. - * + * * The IgH EtherCAT master userspace library is free software; you can * redistribute it and/or modify it under the terms of the GNU Lesser General * Public License as published by the Free Software Foundation; version 2.1 @@ -19,9 +19,9 @@ * You should have received a copy of the GNU Lesser General Public License * along with the IgH EtherCAT master userspace library. If not, see * . - * + * * --- - * + * * The license mentioned above concerns the source code only. Using the * EtherCAT technology and brand is only permitted in compliance with the * industrial property and similar rights of Beckhoff Automation GmbH. @@ -47,7 +47,7 @@ * ecrt_master_sync_slave_clocks() for offset and drift compensation. The * EC_TIMEVAL2NANO() macro can be used for epoch time conversion, while the * ecrt_master_sync_monitor_queue() and ecrt_master_sync_monitor_process() - * methods can be used to monitor the synchrony. + * methods can be used to monitor the synchrony. * - Improved the callback mechanism. ecrt_master_callbacks() now takes two * callback functions for sending and receiving datagrams. * ecrt_master_send_ext() is used to execute the sending of non-application @@ -78,6 +78,9 @@ * - Added ecrt_slave_config_idn() method for storing SoE IDN configurations, * and ecrt_master_read_idn() and ecrt_master_write_idn() to read/write IDNs * ad-hoc via the user-space library. + * - Added support for overlapping PDOs which allows inputs to use the same + * space as outputs on the frame. This reduces the frame length. + * * * @{ */ @@ -135,6 +138,9 @@ */ #define EC_MAX_STRING_LENGTH 64 +/** Maximum number of slave ports. */ +#define EC_MAX_PORTS 4 + /** Timeval to nanoseconds conversion. * * This macro converts a Unix epoch time to EtherCAT DC time. @@ -147,7 +153,7 @@ (((TV).tv_sec - 946684800ULL) * 1000000000ULL + (TV).tv_usec * 1000ULL) /****************************************************************************** - * Data types + * Data types *****************************************************************************/ struct ec_master; @@ -192,7 +198,7 @@ /** Slave configuration state. * * This is used as an output parameter of ecrt_slave_config_state(). - * + * * \see ecrt_slave_config_state(). */ typedef struct { @@ -220,12 +226,33 @@ typedef struct { unsigned int slave_count; /**< Number of slaves in the bus. */ unsigned int link_up : 1; /**< \a true, if the network link is up. */ - uint8_t scan_busy; /**< \a true, while the master is scanning the bus */ + uint8_t scan_busy; /**< \a true, while the master is scanning the bus */ uint64_t app_time; /**< Application time. */ } ec_master_info_t; /*****************************************************************************/ +/** EtherCAT slave port descriptor. + */ +typedef enum { + EC_PORT_NOT_IMPLEMENTED, /**< Port is not implemented. */ + EC_PORT_NOT_CONFIGURED, /**< Port is not configured. */ + EC_PORT_EBUS, /**< Port is an e-bus. */ + EC_PORT_MII /**< Port is a mii. */ +} ec_slave_port_desc_t; + +/*****************************************************************************/ + +/** EtherCAT slave port information. + */ +typedef struct { + uint8_t link_up; /**< Link detected. */ + uint8_t loop_closed; /**< Loop closed. */ + uint8_t signal_detected; /**< Detected signal on RX port. */ +} ec_slave_port_link_t; + +/*****************************************************************************/ + /** Slave information. * * This is used as an output parameter of ecrt_master_get_slave(). @@ -240,6 +267,13 @@ uint32_t serial_number; /**< Serial-Number stored on the slave. */ uint16_t alias; /**< The slaves alias if not equal to 0. */ int16_t current_on_ebus; /**< Used current in mA. */ + struct { + ec_slave_port_desc_t desc; + ec_slave_port_link_t link; + uint32_t receive_time; + uint16_t next_slave; + uint32_t delay_to_next_dc; + } ports[EC_MAX_PORTS]; uint8_t al_state; /**< Current state of the slave. */ uint8_t error_flag; /**< Error flag for that slave. */ uint8_t sync_count; /**< Number of sync managers. */ @@ -311,9 +345,9 @@ /*****************************************************************************/ /** PDO configuration information. - * + * * This is the data type of the \a pdos field in ec_sync_info_t. - * + * * \see ecrt_slave_config_pdos(). */ typedef struct { @@ -362,7 +396,7 @@ uint8_t subindex; /**< PDO entry subindex. */ unsigned int *offset; /**< Pointer to a variable to store the PDO entry's (byte-)offset in the process data. */ - unsigned int *bit_position; /**< Pointer to a variable to store a bit + unsigned int *bit_position; /**< Pointer to a variable to store a bit position (0-7) within the \a offset. Can be NULL, in which case an error is raised if the PDO entry does not byte-align. */ @@ -408,7 +442,7 @@ unsigned int ecrt_version_magic(void); /** Requests an EtherCAT master for realtime operation. - * + * * Before an application can access an EtherCAT master, it has to reserve one * for exclusive use. * @@ -801,17 +835,29 @@ ec_master_state_t *state /**< Structure to store the information. */ ); +/** Reads the current master state and the al_state of all configured slaves. + * + * use this function instead of ecrt_master_state if there are unused + * slaves on the bus + * Stores the master state information in the given \a state structure. + * \see ecrt_master_state() + */ +void ecrt_master_configured_slaves_state( + const ec_master_t *master, /**< EtherCAT master. */ + ec_master_state_t *state /**< Structure to store the information. */ + ); + /** Sets the application time. * * The master has to know the application's time when operating slaves with * distributed clocks. The time is not incremented by the master itself, so * this method has to be called cyclically. - * + * * The time is used when setting the slaves' System Time Offset and * Cyclic Operation Start Time registers and when synchronizing the * DC reference clock to the application time via * ecrt_master_sync_reference_clock(). - * + * * The time is defined as nanoseconds from 2000-01-01 00:00. Converting an * epoch time can be done with the EC_TIMEVAL2NANO() macro. */ @@ -892,6 +938,17 @@ */ ); +/** Configure wether a slave allows overlapping PDOs. + * + * Overlapping PDOs allows inputs to use the same space as outputs on the frame. + * This reduces the frame length. + */ +void ecrt_slave_config_overlapping_pdos( + ec_slave_config_t *sc, /**< Slave configuration. */ + uint8_t allow_overlapping_pdos /**< Allow overlapping PDOs */ + ); + + /** Add a PDO to a sync manager's PDO assignment. * * \see ecrt_slave_config_pdos() @@ -909,7 +966,7 @@ * This can be called before assigning PDOs via * ecrt_slave_config_pdo_assign_add(), to clear the default assignment of a * sync manager. - * + * * \see ecrt_slave_config_pdos() */ void ecrt_slave_config_pdo_assign_clear( @@ -963,28 +1020,28 @@ * {0x3101, 1, 8}, // status * {0x3101, 2, 16} // value * }; - * + * * ec_pdo_entry_info_t el3162_channel2[] = { * {0x3102, 1, 8}, // status * {0x3102, 2, 16} // value * }; - * + * * ec_pdo_info_t el3162_pdos[] = { * {0x1A00, 2, el3162_channel1}, * {0x1A01, 2, el3162_channel2} * }; - * + * * ec_sync_info_t el3162_syncs[] = { * {2, EC_DIR_OUTPUT}, * {3, EC_DIR_INPUT, 2, el3162_pdos}, * {0xff} * }; - * + * * if (ecrt_slave_config_pdos(sc_ana_in, EC_END, el3162_syncs)) { * // handle error * } * \endcode - * + * * The next example shows, how to configure the PDO assignment only. The * entries for each assigned PDO are taken from the PDO's default mapping. * Please note, that PDO entry registration will fail, if the PDO @@ -995,11 +1052,11 @@ * {0x1600}, // Channel 1 * {0x1601} // Channel 2 * }; - * + * * ec_sync_info_t syncs[] = { * {3, EC_DIR_INPUT, 2, pdos}, * }; - * + * * if (ecrt_slave_config_pdos(slave_config_ana_in, 1, syncs)) { * // handle error * } @@ -1041,7 +1098,7 @@ uint16_t entry_index, /**< Index of the PDO entry to register. */ uint8_t entry_subindex, /**< Subindex of the PDO entry to register. */ ec_domain_t *domain, /**< Domain. */ - unsigned int *bit_position /**< Optional address if bit addressing + unsigned int *bit_position /**< Optional address if bit addressing is desired */ ); diff -r e9f722488fcd -r be807e224b0e lib/master.c --- a/lib/master.c Mon Oct 25 17:06:45 2010 +0200 +++ b/lib/master.c Sat Nov 27 17:02:54 2010 +0100 @@ -1,11 +1,11 @@ /****************************************************************************** - * + * * $Id$ - * + * * Copyright (C) 2006-2009 Florian Pose, Ingenieurgemeinschaft IgH - * + * * This file is part of the IgH EtherCAT master userspace library. - * + * * The IgH EtherCAT master userspace library is free software; you can * redistribute it and/or modify it under the terms of the GNU Lesser General * Public License as published by the Free Software Foundation; version 2.1 @@ -19,9 +19,9 @@ * You should have received a copy of the GNU Lesser General Public License * along with the IgH EtherCAT master userspace library. If not, see * . - * + * * --- - * + * * The license mentioned above concerns the source code only. Using the * EtherCAT technology and brand is only permitted in compliance with the * industrial property and similar rights of Beckhoff Automation GmbH. @@ -118,12 +118,12 @@ fprintf(stderr, "Failed to allocate memory.\n"); return 0; } - + index = ioctl(master->fd, EC_IOCTL_CREATE_DOMAIN, NULL); if (index == -1) { fprintf(stderr, "Failed to create domain: %s\n", strerror(errno)); free(domain); - return 0; + return 0; } domain->next = NULL; @@ -166,17 +166,17 @@ fprintf(stderr, "Failed to allocate memory.\n"); return 0; } - + data.alias = alias; data.position = position; data.vendor_id = vendor_id; data.product_code = product_code; - + if (ioctl(master->fd, EC_IOCTL_CREATE_SLAVE_CONFIG, &data) == -1) { fprintf(stderr, "Failed to create slave config: %s\n", strerror(errno)); free(sc); - return 0; + return 0; } sc->next = NULL; @@ -216,7 +216,7 @@ ec_slave_info_t *slave_info) { ec_ioctl_slave_t data; - int index; + int index, i; data.position = slave_position; @@ -232,6 +232,15 @@ slave_info->serial_number = data.serial_number; slave_info->alias = data.alias; slave_info->current_on_ebus = data.current_on_ebus; + for ( i = 0; i < EC_MAX_PORTS; i++ ) { + slave_info->ports[i].desc = data.ports[i].desc; + slave_info->ports[i].link.link_up = data.ports[i].link.link_up; + slave_info->ports[i].link.loop_closed = data.ports[i].link.loop_closed; + slave_info->ports[i].link.signal_detected = data.ports[i].link.signal_detected; + slave_info->ports[i].receive_time = data.ports[i].receive_time; + slave_info->ports[i].next_slave = data.ports[i].next_slave; + slave_info->ports[i].delay_to_next_dc = data.ports[i].delay_to_next_dc; + } slave_info->al_state = data.al_state; slave_info->error_flag = data.error_flag; slave_info->sync_count = data.sync_count; @@ -455,7 +464,7 @@ } // Access the mapped region to cause the initial page fault - printf("pd: %x\n", master->process_data[0]); + memset(master->process_data, 0, master->process_data_size); } return 0; @@ -515,6 +524,16 @@ /*****************************************************************************/ +void ecrt_master_configured_slaves_state(const ec_master_t *master, + ec_master_state_t *state) +{ + if (ioctl(master->fd, EC_IOCTL_MASTER_SC_STATE, state) == -1) { + fprintf(stderr, "Failed to get master state: %s\n", strerror(errno)); + } +} + +/*****************************************************************************/ + void ecrt_master_application_time(ec_master_t *master, uint64_t app_time) { ec_ioctl_app_time_t data; diff -r e9f722488fcd -r be807e224b0e lib/slave_config.c --- a/lib/slave_config.c Mon Oct 25 17:06:45 2010 +0200 +++ b/lib/slave_config.c Sat Nov 27 17:02:54 2010 +0100 @@ -110,6 +110,23 @@ /*****************************************************************************/ +void ecrt_slave_config_overlapping_pdos(ec_slave_config_t *sc, + uint8_t allow_overlapping_pdos) +{ + ec_ioctl_config_t data; + + memset(&data, 0x00, sizeof(ec_ioctl_config_t)); + data.config_index = sc->index; + data.allow_overlapping_pdos = allow_overlapping_pdos; + + if (ioctl(sc->master->fd, EC_IOCTL_SC_OVERLAPPING_IO, &data) == -1) { + fprintf(stderr, "Failed to config overlapping PDOs: %s\n", + strerror(errno)); + } +} + +/*****************************************************************************/ + int ecrt_slave_config_pdo_assign_add(ec_slave_config_t *sc, uint8_t sync_index, uint16_t pdo_index) { diff -r e9f722488fcd -r be807e224b0e master/cdev.c --- a/master/cdev.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/cdev.c Sat Nov 27 17:02:54 2010 +0100 @@ -539,6 +539,7 @@ } data.data_size = domain->data_size; + data.tx_size = domain->tx_size; data.logical_base_address = domain->logical_base_address; data.working_counter = domain->working_counter; data.expected_working_counter = domain->expected_working_counter; @@ -592,6 +593,7 @@ data.sync_index = fmmu->sync_index; data.dir = fmmu->dir; data.logical_address = fmmu->logical_start_address; + data.domain_address = fmmu->domain_address; data.data_size = fmmu->data_size; up(&master->master_sem); @@ -1887,6 +1889,29 @@ /*****************************************************************************/ +/** Get the master state of all configured slaves. + */ +int ec_cdev_ioctl_master_sc_state( + ec_master_t *master, /**< EtherCAT master. */ + unsigned long arg, /**< ioctl() argument. */ + ec_cdev_priv_t *priv /**< Private data structure of file handle. */ + ) +{ + ec_master_state_t data; + + if (unlikely(!priv->requested)) + return -EPERM; + + ecrt_master_configured_slaves_state(master, &data); + + if (copy_to_user((void __user *) arg, &data, sizeof(data))) + return -EFAULT; + + return 0; +} + +/*****************************************************************************/ + /** Get the master state. */ int ec_cdev_ioctl_app_time( @@ -2084,6 +2109,50 @@ return ret; } + +/*****************************************************************************/ + +/** Configure wether a slave allows overlapping PDOs. + */ +int ec_cdev_ioctl_sc_allow_overlapping_pdos( + ec_master_t *master, /**< EtherCAT master. */ + unsigned long arg, /**< ioctl() argument. */ + ec_cdev_priv_t *priv /**< Private data structure of file handle. */ + ) +{ + ec_ioctl_config_t data; + ec_slave_config_t *sc; + int ret = 0; + + if (unlikely(!priv->requested)) { + ret = -EPERM; + goto out_return; + } + + if (copy_from_user(&data, (void __user *) arg, sizeof(data))) { + ret = -EFAULT; + goto out_return; + } + + if (down_interruptible(&master->master_sem)) { + ret = -EINTR; + goto out_return; + } + + if (!(sc = ec_master_get_config(master, data.config_index))) { + ret = -ENOENT; + goto out_up; + } + + ecrt_slave_config_overlapping_pdos(sc, + data.allow_overlapping_pdos); + +out_up: + up(&master->master_sem); +out_return: + return ret; +} + /*****************************************************************************/ /** Add a PDO to the assignment. @@ -3651,6 +3720,8 @@ return ec_cdev_ioctl_receive(master, arg, priv); case EC_IOCTL_MASTER_STATE: return ec_cdev_ioctl_master_state(master, arg, priv); + case EC_IOCTL_MASTER_SC_STATE: + return ec_cdev_ioctl_master_sc_state(master, arg, priv); case EC_IOCTL_APP_TIME: if (!(filp->f_mode & FMODE_WRITE)) return -EPERM; @@ -3679,6 +3750,10 @@ if (!(filp->f_mode & FMODE_WRITE)) return -EPERM; return ec_cdev_ioctl_sc_watchdog(master, arg, priv); + case EC_IOCTL_SC_OVERLAPPING_IO: + if (!(filp->f_mode & FMODE_WRITE)) + return -EPERM; + return ec_cdev_ioctl_sc_allow_overlapping_pdos(master,arg,priv); case EC_IOCTL_SC_ADD_PDO: if (!(filp->f_mode & FMODE_WRITE)) return -EPERM; diff -r e9f722488fcd -r be807e224b0e master/datagram.c --- a/master/datagram.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/datagram.c Sat Nov 27 17:02:54 2010 +0100 @@ -94,6 +94,7 @@ datagram->data_origin = EC_ORIG_INTERNAL; datagram->mem_size = 0; datagram->data_size = 0; + datagram->domain = NULL; datagram->index = 0x00; datagram->working_counter = 0x0000; datagram->state = EC_DATAGRAM_INIT; diff -r e9f722488fcd -r be807e224b0e master/datagram.h --- a/master/datagram.h Mon Oct 25 17:06:45 2010 +0200 +++ b/master/datagram.h Sat Nov 27 17:02:54 2010 +0100 @@ -94,6 +94,7 @@ ec_origin_t data_origin; /**< Origin of the \a data memory. */ size_t mem_size; /**< Datagram \a data memory size. */ size_t data_size; /**< Size of the data in \a data. */ + ec_domain_t *domain; /**< Owning domain (may be null for non-domain datagrams) */ uint8_t index; /**< Index (set by master). */ uint16_t working_counter; /**< Working counter. */ ec_datagram_state_t state; /**< State. */ diff -r e9f722488fcd -r be807e224b0e master/domain.c --- a/master/domain.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/domain.c Sat Nov 27 17:02:54 2010 +0100 @@ -60,6 +60,7 @@ domain->index = index; INIT_LIST_HEAD(&domain->fmmu_configs); domain->data_size = 0; + domain->tx_size = 0; domain->data = NULL; domain->data_origin = EC_ORIG_INTERNAL; domain->logical_base_address = 0x00000000; @@ -113,6 +114,7 @@ fmmu->domain = domain; domain->data_size += fmmu->data_size; + domain->tx_size += fmmu->tx_size; list_add_tail(&fmmu->list, &domain->fmmu_configs); EC_MASTER_DBG(domain->master, 1, "Domain %u:" @@ -179,6 +181,7 @@ ec_datagram_zero(datagram); list_add_tail(&datagram->list, &domain->datagrams); + datagram->domain = domain; return 0; } @@ -238,6 +241,7 @@ list_for_each_entry(fmmu, &domain->fmmu_configs, list) { // Correct logical FMMU address fmmu->logical_start_address += base_address; + fmmu->domain_address += base_address; // Increment Input/Output counter to determine datagram types // and calculate expected working counters @@ -249,7 +253,7 @@ // If the current FMMU's data do not fit in the current datagram, // allocate a new one. - if (datagram_size + fmmu->data_size > EC_MAX_DATA_SIZE) { + if (datagram_size + fmmu->tx_size > EC_MAX_DATA_SIZE) { ret = ec_domain_add_datagram(domain, domain->logical_base_address + datagram_offset, datagram_size, domain->data + datagram_offset, @@ -267,7 +271,7 @@ } } - datagram_size += fmmu->data_size; + datagram_size += fmmu->tx_size; } // Allocate last datagram, if data are left (this is also the case if the diff -r e9f722488fcd -r be807e224b0e master/domain.h --- a/master/domain.h Mon Oct 25 17:06:45 2010 +0200 +++ b/master/domain.h Sat Nov 27 17:02:54 2010 +0100 @@ -59,6 +59,7 @@ struct list_head fmmu_configs; /**< FMMU configurations contained. */ size_t data_size; /**< Size of the process data. */ + size_t tx_size; /**< Size of the transmitted data. */ uint8_t *data; /**< Memory for the process data. */ ec_origin_t data_origin; /**< Origin of the \a data memory. */ uint32_t logical_base_address; /**< Logical offset address of the diff -r e9f722488fcd -r be807e224b0e master/fmmu_config.c --- a/master/fmmu_config.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/fmmu_config.c Sat Nov 27 17:02:54 2010 +0100 @@ -43,14 +43,12 @@ /** FMMU configuration constructor. * - * Inits an FMMU configuration, sets the logical start address and adds the - * process data size for the mapped PDOs of the given direction to the domain - * data size. + * Inits an FMMU configuration and the process data size forthe mapped PDOs + * of the given direction to the domain data size. */ void ec_fmmu_config_init( ec_fmmu_config_t *fmmu, /**< EtherCAT FMMU configuration. */ ec_slave_config_t *sc, /**< EtherCAT slave configuration. */ - ec_domain_t *domain, /**< EtherCAT domain. */ uint8_t sync_index, /**< Sync manager index to use. */ ec_direction_t dir /**< PDO direction. */ ) @@ -59,14 +57,32 @@ fmmu->sc = sc; fmmu->sync_index = sync_index; fmmu->dir = dir; - - fmmu->logical_start_address = domain->data_size; fmmu->data_size = ec_pdo_list_total_size( &sc->sync_configs[sync_index].pdos); +} + +/*****************************************************************************/ + +/** Sets FMMU domain + * + * Sets the logical start address and the size of the transmitted data + */ +void ec_fmmu_config_domain( + ec_fmmu_config_t *fmmu, /**< EtherCAT FMMU configuration. */ + ec_domain_t *domain, /**< EtherCAT domain. */ + uint32_t logical_start_address, /**< FMMU logical start address. */ + size_t tx_size /**< Size of transmitted data */ + ) +{ + fmmu->domain = domain; + fmmu->domain_address = domain->data_size; + fmmu->logical_start_address = logical_start_address; + fmmu->tx_size = tx_size; ec_domain_add_fmmu_config(domain, fmmu); } + /*****************************************************************************/ /** Initializes an FMMU configuration page. @@ -79,9 +95,11 @@ uint8_t *data /**> Configuration page memory. */ ) { - EC_CONFIG_DBG(fmmu->sc, 1, "FMMU: LogAddr 0x%08X, Size %3u," + EC_CONFIG_DBG(fmmu->sc, 1, "FMMU: LogAddr 0x%08X, DomAddr 0x%08X," + " Size %3u, Tx %3u" " PhysAddr 0x%04X, SM%u, Dir %s\n", - fmmu->logical_start_address, fmmu->data_size, + fmmu->logical_start_address, fmmu->domain_address, + fmmu->data_size, fmmu->data_size, sync->physical_start_address, fmmu->sync_index, fmmu->dir == EC_DIR_INPUT ? "in" : "out"); diff -r e9f722488fcd -r be807e224b0e master/fmmu_config.h --- a/master/fmmu_config.h Mon Oct 25 17:06:45 2010 +0200 +++ b/master/fmmu_config.h Sat Nov 27 17:02:54 2010 +0100 @@ -50,13 +50,18 @@ uint8_t sync_index; /**< Index of sync manager to use. */ ec_direction_t dir; /**< FMMU direction. */ uint32_t logical_start_address; /**< Logical start address. */ + size_t tx_size; /**< Transmitted (bus) size. */ + uint32_t domain_address; /** Domain start address */ unsigned int data_size; /**< Covered PDO size. */ } ec_fmmu_config_t; /*****************************************************************************/ void ec_fmmu_config_init(ec_fmmu_config_t *, ec_slave_config_t *, - ec_domain_t *, uint8_t, ec_direction_t); + uint8_t, ec_direction_t); + +void ec_fmmu_config_domain(ec_fmmu_config_t *, ec_domain_t *, + uint32_t , size_t); void ec_fmmu_config_page(const ec_fmmu_config_t *, const ec_sync_t *, uint8_t *); diff -r e9f722488fcd -r be807e224b0e master/fsm_master.c --- a/master/fsm_master.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/fsm_master.c Sat Nov 27 17:02:54 2010 +0100 @@ -48,7 +48,11 @@ /** Time difference [ns] to tolerate without setting a new system time offset. */ +#ifdef EC_HAVE_CYCLES +#define EC_SYSTEM_TIME_TOLERANCE_NS 10000 +#else #define EC_SYSTEM_TIME_TOLERANCE_NS 100000000 +#endif /*****************************************************************************/ @@ -889,26 +893,27 @@ ec_fsm_master_t *fsm, /**< Master state machine. */ u64 system_time, /**< System time register. */ u64 old_offset, /**< Time offset register. */ - unsigned long jiffies_since_read /**< Jiffies for correction. */ + u64 correction /**< Correction. */ ) { ec_slave_t *slave = fsm->slave; - u32 correction, system_time32, old_offset32, new_offset; + u32 correction32, system_time32, old_offset32, new_offset; s32 time_diff; - system_time32 = (u32) system_time; - old_offset32 = (u32) old_offset; - - // correct read system time by elapsed time since read operation - correction = jiffies_since_read * 1000 / HZ * 1000000; - system_time32 += correction; - time_diff = (u32) slave->master->app_time - system_time32; + system_time32 = (u32) system_time; + // correct read system time by elapsed time between read operation + // and app_time set time + correction32 = (u32)correction; + system_time32 -= correction32; + old_offset32 = (u32) old_offset; + + time_diff = (u32) slave->master->app_start_time - system_time32; EC_SLAVE_DBG(slave, 1, "DC system time offset calculation:" " system_time=%u (corrected with %u)," - " app_time=%llu, diff=%i\n", - system_time32, correction, - slave->master->app_time, time_diff); + " app_start_time=%llu, diff=%i\n", + system_time32, correction32, + slave->master->app_start_time, time_diff); if (EC_ABS(time_diff) > EC_SYSTEM_TIME_TOLERANCE_NS) { new_offset = time_diff + old_offset32; @@ -929,23 +934,23 @@ ec_fsm_master_t *fsm, /**< Master state machine. */ u64 system_time, /**< System time register. */ u64 old_offset, /**< Time offset register. */ - unsigned long jiffies_since_read /**< Jiffies for correction. */ + u64 correction /**< Correction. */ ) { ec_slave_t *slave = fsm->slave; - u64 new_offset, correction; + u64 new_offset; s64 time_diff; - // correct read system time by elapsed time since read operation - correction = (u64) (jiffies_since_read * 1000 / HZ) * 1000000; - system_time += correction; - time_diff = fsm->slave->master->app_time - system_time; + // correct read system time by elapsed time between read operation + // and app_time set time + system_time -= correction; + time_diff = fsm->slave->master->app_start_time - system_time; EC_SLAVE_DBG(slave, 1, "DC system time offset calculation:" " system_time=%llu (corrected with %llu)," - " app_time=%llu, diff=%lli\n", + " app_start_time=%llu, diff=%lli\n", system_time, correction, - slave->master->app_time, time_diff); + slave->master->app_start_time, time_diff); if (EC_ABS(time_diff) > EC_SYSTEM_TIME_TOLERANCE_NS) { new_offset = time_diff + old_offset; @@ -969,8 +974,7 @@ { ec_datagram_t *datagram = fsm->datagram; ec_slave_t *slave = fsm->slave; - u64 system_time, old_offset, new_offset; - unsigned long jiffies_since_read; + u64 system_time, old_offset, new_offset, correction; if (datagram->state == EC_DATAGRAM_TIMED_OUT && fsm->retries--) return; @@ -993,14 +997,25 @@ system_time = EC_READ_U64(datagram->data); // 0x0910 old_offset = EC_READ_U64(datagram->data + 16); // 0x0920 - jiffies_since_read = jiffies - datagram->jiffies_sent; + /* correct read system time by elapsed time since read operation + and the app_time set time */ +#ifdef EC_HAVE_CYCLES + correction = + (datagram->cycles_sent - slave->master->dc_cycles_app_start_time) + * 1000000LL; + do_div(correction,cpu_khz); +#else + correction = + (u64) ((datagram->jiffies_sent-slave->master->dc_jiffies_app_time) * 1000 / HZ) + * 1000000; +#endif if (slave->base_dc_range == EC_DC_32) { new_offset = ec_fsm_master_dc_offset32(fsm, - system_time, old_offset, jiffies_since_read); + system_time, old_offset, correction); } else { new_offset = ec_fsm_master_dc_offset64(fsm, - system_time, old_offset, jiffies_since_read); + system_time, old_offset, correction); } // set DC system time offset and transmission delay diff -r e9f722488fcd -r be807e224b0e master/fsm_slave_config.c --- a/master/fsm_slave_config.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/fsm_slave_config.c Sat Nov 27 17:02:54 2010 +0100 @@ -1248,7 +1248,7 @@ abs_sync_diff = EC_READ_U32(datagram->data) & 0x7fffffff; diff_ms = (datagram->jiffies_received - fsm->jiffies_start) * 1000 / HZ; - if (abs_sync_diff > EC_DC_MAX_SYNC_DIFF_NS) { + if (abs_sync_diff > EC_DC_MAX_SYNC_DIFF_NS) { if (diff_ms >= EC_DC_SYNC_WAIT_MS) { EC_SLAVE_WARN(slave, "Slave did not sync after %lu ms.\n", diff -r e9f722488fcd -r be807e224b0e master/globals.h --- a/master/globals.h Mon Oct 25 17:06:45 2010 +0200 +++ b/master/globals.h Sat Nov 27 17:02:54 2010 +0100 @@ -97,9 +97,6 @@ /** Word offset of first SII category. */ #define EC_FIRST_SII_CATEGORY_OFFSET 0x40 -/** Maximum number of slave ports. */ -#define EC_MAX_PORTS 4 - /** Size of a sync manager configuration page. */ #define EC_SYNC_PAGE_SIZE 8 @@ -173,23 +170,6 @@ uint8_t enable_not_lrw : 1; /**< Slave does not support LRW. */ } ec_sii_general_flags_t; -/** EtherCAT slave port descriptor. - */ -typedef enum { - EC_PORT_NOT_IMPLEMENTED, - EC_PORT_NOT_CONFIGURED, - EC_PORT_EBUS, - EC_PORT_MII -} ec_slave_port_desc_t; - -/** EtherCAT slave port information. - */ -typedef struct { - uint8_t link_up; /**< Link detected. */ - uint8_t loop_closed; /**< Loop closed. */ - uint8_t signal_detected; /**< Detected signal on RX port. */ -} ec_slave_port_link_t; - /** EtherCAT slave distributed clocks range. */ typedef enum { diff -r e9f722488fcd -r be807e224b0e master/ioctl.h --- a/master/ioctl.h Mon Oct 25 17:06:45 2010 +0200 +++ b/master/ioctl.h Sat Nov 27 17:02:54 2010 +0100 @@ -136,6 +136,8 @@ #define EC_IOCTL_VOE_EXEC EC_IOWR(0x46, ec_ioctl_voe_t) #define EC_IOCTL_VOE_DATA EC_IOWR(0x47, ec_ioctl_voe_t) #define EC_IOCTL_SET_SEND_INTERVAL EC_IOW(0x48, size_t) +#define EC_IOCTL_MASTER_SC_STATE EC_IOR(0x47, ec_master_state_t) +#define EC_IOCTL_SC_OVERLAPPING_IO EC_IOW(0x48, ec_ioctl_config_t) /*****************************************************************************/ @@ -277,6 +279,7 @@ // outputs uint32_t data_size; + uint32_t tx_size; uint32_t logical_base_address; uint16_t working_counter; uint16_t expected_working_counter; @@ -296,6 +299,7 @@ uint8_t sync_index; ec_direction_t dir; uint32_t logical_address; + uint32_t domain_address; uint32_t data_size; } ec_ioctl_domain_fmmu_t; @@ -458,6 +462,7 @@ } syncs[EC_MAX_SYNC_MANAGERS]; uint16_t watchdog_divider; uint16_t watchdog_intervals; + uint8_t allow_overlapping_pdos; uint32_t sdo_count; uint32_t idn_count; int32_t slave_position; diff -r e9f722488fcd -r be807e224b0e master/master.c --- a/master/master.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/master.c Sat Nov 27 17:02:54 2010 +0100 @@ -145,10 +145,14 @@ master->slaves = NULL; master->slave_count = 0; - + INIT_LIST_HEAD(&master->configs); master->app_time = 0ULL; +#ifdef EC_HAVE_CYCLES + master->dc_cycles_app_start_time = 0; +#endif + master->dc_jiffies_app_start_time = 0; master->app_start_time = 0ULL; master->has_app_time = 0; @@ -862,7 +866,7 @@ { ec_datagram_t *datagram, *next; size_t datagram_size; - uint8_t *frame_data, *cur_data; + uint8_t *frame_data, *cur_data, *frame_datagram_data; void *follows_word; #ifdef EC_HAVE_CYCLES cycles_t cycles_start, cycles_sent, cycles_end; @@ -870,6 +874,7 @@ unsigned long jiffies_sent; unsigned int frame_count, more_datagrams_waiting; struct list_head sent_datagrams; + ec_fmmu_config_t* domain_fmmu; #ifdef EC_HAVE_CYCLES cycles_start = get_cycles(); @@ -918,7 +923,28 @@ cur_data += EC_DATAGRAM_HEADER_SIZE; // EtherCAT datagram data - memcpy(cur_data, datagram->data, datagram->data_size); + frame_datagram_data = cur_data; + if (datagram->domain) { + unsigned int datagram_address = EC_READ_U32(datagram->address); + int i = 0; + uint8_t *domain_data = datagram->data; + list_for_each_entry(domain_fmmu, &datagram->domain->fmmu_configs, list) { + if (domain_fmmu->dir == EC_DIR_OUTPUT ) { + unsigned int frame_offset = domain_fmmu->logical_start_address-datagram_address; + memcpy(frame_datagram_data+frame_offset, domain_data, domain_fmmu->data_size); + if (unlikely(master->debug_level > 1)) { + EC_DBG("sending dg 0x%02X fmmu %u fp=%u dp=%u size=%u\n", + datagram->index, i,frame_offset,domain_data-datagram->data,domain_fmmu->data_size); + ec_print_data(domain_data, domain_fmmu->data_size); + } + } + domain_data += domain_fmmu->data_size; + ++i; + } + } + else { + memcpy(frame_datagram_data, datagram->data, datagram->data_size); + } cur_data += datagram->data_size; // EtherCAT datagram footer @@ -988,8 +1014,9 @@ size_t frame_size, data_size; uint8_t datagram_type, datagram_index; unsigned int cmd_follows, matched; - const uint8_t *cur_data; + const uint8_t *cur_data, *frame_datagram_data; ec_datagram_t *datagram; + ec_fmmu_config_t* domain_fmmu; if (unlikely(size < EC_FRAME_HEADER_SIZE)) { if (master->debug_level) { @@ -1072,9 +1099,29 @@ cur_data += data_size + EC_DATAGRAM_FOOTER_SIZE; continue; } - - // copy received data into the datagram memory - memcpy(datagram->data, cur_data, data_size); + frame_datagram_data = cur_data; + if (datagram->domain) { + size_t datagram_address = EC_READ_U32(datagram->address); + int i = 0; + uint8_t *domain_data = datagram->data; + list_for_each_entry(domain_fmmu, &datagram->domain->fmmu_configs, list) { + if (domain_fmmu->dir == EC_DIR_INPUT ) { + unsigned int frame_offset = domain_fmmu->logical_start_address-datagram_address; + memcpy(domain_data, frame_datagram_data+frame_offset, domain_fmmu->data_size); + if (unlikely(master->debug_level > 1)) { + EC_DBG("receiving dg 0x%02X fmmu %u fp=%u dp=%u size=%u\n", + datagram->index, i,frame_offset,domain_data-datagram->data,domain_fmmu->data_size); + ec_print_data(domain_data, domain_fmmu->data_size); + } + } + domain_data += domain_fmmu->data_size; + ++i; + } + } + else { + // copy received data into the datagram memory + memcpy(datagram->data, frame_datagram_data, data_size); + } cur_data += data_size; // set the datagram's working counter @@ -1226,24 +1273,25 @@ ecrt_master_receive(master); up(&master->io_sem); - fsm_exec = 0; - // execute master & slave state machines - if (down_interruptible(&master->master_sem)) - break; - fsm_exec = ec_fsm_master_exec(&master->fsm); - for (slave = master->slaves; - slave < master->slaves + master->slave_count; - slave++) { - ec_fsm_slave_exec(&slave->fsm); - } - up(&master->master_sem); - - // queue and send - down(&master->io_sem); - if (fsm_exec) { - ec_master_queue_datagram(master, &master->fsm_datagram); - } - ec_master_inject_external_datagrams(master); + if (master->injection_seq_rt == master->injection_seq_fsm) { + fsm_exec = 0; + // execute master & slave state machines + if (down_interruptible(&master->master_sem)) + break; + fsm_exec = ec_fsm_master_exec(&master->fsm); + for (slave = master->slaves; + slave < master->slaves + master->slave_count; + slave++) { + ec_fsm_slave_exec(&slave->fsm); + } + up(&master->master_sem); + + // queue and send + down(&master->io_sem); + if (fsm_exec) { + master->injection_seq_rt++; + } + } ecrt_master_send(master); sent_bytes = master->main_device.tx_skb[ master->main_device.tx_ring_index]->len; @@ -1295,7 +1343,7 @@ // execute master & slave state machines if (down_interruptible(&master->master_sem)) break; - fsm_exec += ec_fsm_master_exec(&master->fsm); + fsm_exec = ec_fsm_master_exec(&master->fsm); for (slave = master->slaves; slave < master->slaves + master->slave_count; slave++) { @@ -1767,7 +1815,8 @@ slave->ports[0].next_slave = port0_slave; - for (i = 1; i < EC_MAX_PORTS; i++) { + i = 3; + while (i != 0) { if (!slave->ports[i].link.loop_closed) { *slave_position = *slave_position + 1; if (*slave_position < master->slave_count) { @@ -1780,6 +1829,14 @@ return -1; } } + switch (i) + { + case 0: i = 3; break; + case 1: i = 2; break; + case 3: i = 1; break; + case 2: + default:i = 0; break; + } } return 0; @@ -2297,12 +2354,36 @@ /*****************************************************************************/ +void ecrt_master_configured_slaves_state(const ec_master_t *master, ec_master_state_t *state) +{ + const ec_slave_config_t *sc; + ec_slave_config_state_t sc_state; + + // collect al_states of all configured online slaves + state->al_states = 0; + list_for_each_entry(sc, &master->configs, list) { + ecrt_slave_config_state(sc,&sc_state); + if (sc_state.online) + state->al_states |= sc_state.al_state; + } + + state->slaves_responding = master->fsm.slaves_responding; + state->link_up = master->main_device.link_state; +} + +/*****************************************************************************/ + void ecrt_master_application_time(ec_master_t *master, uint64_t app_time) { master->app_time = app_time; if (unlikely(!master->has_app_time)) { - master->app_start_time = app_time; + EC_MASTER_DBG(master, 1, "set application start time = %llu\n",app_time); + master->app_start_time = app_time; +#ifdef EC_HAVE_CYCLES + master->dc_cycles_app_start_time = get_cycles(); +#endif + master->dc_jiffies_app_start_time = jiffies; master->has_app_time = 1; } } diff -r e9f722488fcd -r be807e224b0e master/master.h --- a/master/master.h Mon Oct 25 17:06:45 2010 +0200 +++ b/master/master.h Sat Nov 27 17:02:54 2010 +0100 @@ -187,7 +187,11 @@ ec_datagram_t sync_mon_datagram; /**< Datagram used for DC synchronisation monitoring. */ ec_slave_t *dc_ref_clock; /**< DC reference clock slave. */ - +#ifdef EC_HAVE_CYCLES + cycles_t dc_cycles_app_start_time; /** cycles at last ecrt_master_sync() call.*/ +#endif + unsigned long dc_jiffies_app_start_time;/** jiffies at last + ecrt_master_sync() call.*/ unsigned int scan_busy; /**< Current scan state. */ unsigned int allow_scan; /**< \a True, if slave scanning is allowed. */ struct semaphore scan_sem; /**< Semaphore protecting the \a scan_busy diff -r e9f722488fcd -r be807e224b0e master/slave.c --- a/master/slave.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/slave.c Sat Nov 27 17:02:54 2010 +0100 @@ -803,6 +803,59 @@ /*****************************************************************************/ +/** returns the previous connected port of a given port. + */ + +unsigned int ec_slave_get_previous_port( + ec_slave_t *slave, /**< EtherCAT slave. */ + unsigned int i /**< Port index */ + ) +{ + do + { + switch (i) + { + case 0: i = 2; break; + case 1: i = 3; break; + case 2: i = 1; break; + case 3: + default:i = 0; break; + } + if (slave->ports[i].next_slave) + return i; + } while (i); + return 0; +} + +/*****************************************************************************/ + +/** returns the next connected port of a given port. + */ + +unsigned int ec_slave_get_next_port( + ec_slave_t *slave, /**< EtherCAT slave. */ + unsigned int i /**< Port index */ + ) +{ + do + { + switch (i) + { + case 0: i = 3; break; + case 1: i = 2; break; + case 3: i = 1; break; + case 2: + default:i = 0; break; + } + if (slave->ports[i].next_slave) + return i; + } while (i); + return 0; +} + + +/*****************************************************************************/ + /** Calculates the sum of round-trip-times of connected ports 1-3. */ uint32_t ec_slave_calc_rtt_sum( @@ -810,13 +863,11 @@ ) { uint32_t rtt_sum = 0, rtt; - unsigned int i; - - for (i = 1; i < EC_MAX_PORTS; i++) { - if (slave->ports[i].next_slave) { - rtt = slave->ports[i].receive_time - slave->ports[i - 1].receive_time; - rtt_sum += rtt; - } + unsigned int i = ec_slave_get_next_port(slave,0); + while (i != 0) { + rtt = slave->ports[i].receive_time - slave->ports[ec_slave_get_previous_port(slave,i)].receive_time; + rtt_sum += rtt; + i = ec_slave_get_next_port(slave,i); } return rtt_sum; @@ -830,20 +881,21 @@ ec_slave_t *slave /**< EtherCAT slave. */ ) { + unsigned int i; ec_slave_t *dc_slave = NULL; if (slave->base_dc_supported) { dc_slave = slave; } else { - unsigned int i; - - for (i = 1; i < EC_MAX_PORTS; i++) { + i = ec_slave_get_next_port(slave,0); + while (i != 0) { ec_slave_t *next = slave->ports[i].next_slave; if (next) { dc_slave = ec_slave_find_next_dc_slave(next); if (dc_slave) break; } + i = ec_slave_get_next_port(slave,i); } } @@ -859,32 +911,30 @@ ) { unsigned int i; - ec_slave_t *next, *next_dc; + ec_slave_t *next_dc; uint32_t rtt, next_rtt_sum; if (!slave->base_dc_supported) return; - for (i = 1; i < EC_MAX_PORTS; i++) { - next = slave->ports[i].next_slave; - if (!next) - continue; - next_dc = ec_slave_find_next_dc_slave(next); - if (!next_dc) - continue; - - rtt = slave->ports[i].receive_time - slave->ports[i - 1].receive_time; - next_rtt_sum = ec_slave_calc_rtt_sum(next_dc); - - slave->ports[i].delay_to_next_dc = (rtt - next_rtt_sum) / 2; // FIXME - next_dc->ports[0].delay_to_next_dc = (rtt - next_rtt_sum) / 2; + i = ec_slave_get_next_port(slave,0); + while (i != 0) { + next_dc = ec_slave_find_next_dc_slave(slave->ports[i].next_slave); + if (next_dc) { + rtt = slave->ports[i].receive_time - slave->ports[ec_slave_get_previous_port(slave,i)].receive_time; + next_rtt_sum = ec_slave_calc_rtt_sum(next_dc); + + slave->ports[i].delay_to_next_dc = (rtt - next_rtt_sum) / 2; // FIXME + next_dc->ports[0].delay_to_next_dc = (rtt - next_rtt_sum) / 2; #if 0 - EC_SLAVE_DBG(slave, 1, "delay %u:%u rtt=%u" - " next_rtt_sum=%u delay=%u\n", - slave->ring_position, i, rtt, next_rtt_sum, - slave->ports[i].delay_to_next_dc); + EC_SLAVE_DBG(slave, 1, "delay %u:%u rtt=%u" + " next_rtt_sum=%u delay=%u\n", + slave->ring_position, i, rtt, next_rtt_sum, + slave->ports[i].delay_to_next_dc); #endif + } + i = ec_slave_get_next_port(slave,i); } } @@ -898,28 +948,26 @@ ) { unsigned int i; - ec_slave_t *next, *next_dc; - -#if 0 + ec_slave_t *next_dc; + +#if 1 EC_SLAVE_DBG(slave, 1, "%u\n", *delay); #endif slave->transmission_delay = *delay; - for (i = 1; i < EC_MAX_PORTS; i++) { + i = ec_slave_get_next_port(slave,0); + while (i != 0) { ec_slave_port_t *port = &slave->ports[i]; - next = port->next_slave; - if (!next) - continue; - next_dc = ec_slave_find_next_dc_slave(next); - if (!next_dc) - continue; - - *delay = *delay + port->delay_to_next_dc; + next_dc = ec_slave_find_next_dc_slave(port->next_slave); + if (next_dc) { + *delay = *delay + port->delay_to_next_dc; #if 0 - EC_SLAVE_DBG(slave, 1, "%u:%u %u\n", slave->ring_position, i, *delay); + EC_SLAVE_DBG(slave, 1, "%u:%u %u\n", slave->ring_position, i, *delay); #endif - ec_slave_calc_transmission_delays_rec(next_dc, delay); + ec_slave_calc_transmission_delays_rec(next_dc, delay); + } + i = ec_slave_get_next_port(slave,i); } *delay = *delay + slave->ports[0].delay_to_next_dc; diff -r e9f722488fcd -r be807e224b0e master/slave_config.c --- a/master/slave_config.c Mon Oct 25 17:06:45 2010 +0200 +++ b/master/slave_config.c Sat Nov 27 17:02:54 2010 +0100 @@ -70,7 +70,7 @@ sc->product_code = product_code; sc->watchdog_divider = 0; // use default sc->watchdog_intervals = 0; // use default - + sc->allow_overlapping_pdos = 0; // default not allowed sc->slave = NULL; for (i = 0; i < EC_MAX_SYNC_MANAGERS; i++) @@ -164,12 +164,15 @@ { unsigned int i; ec_fmmu_config_t *fmmu; + ec_fmmu_config_t *prev_fmmu; + uint32_t fmmu_logical_start_address; + size_t tx_size; // FMMU configuration already prepared? for (i = 0; i < sc->used_fmmus; i++) { fmmu = &sc->fmmu_configs[i]; if (fmmu->domain == domain && fmmu->sync_index == sync_index) - return fmmu->logical_start_address; + return fmmu->domain_address; } if (sc->used_fmmus == EC_MAX_FMMUS) { @@ -177,13 +180,27 @@ return -EOVERFLOW; } - fmmu = &sc->fmmu_configs[sc->used_fmmus++]; + fmmu = &sc->fmmu_configs[sc->used_fmmus]; down(&sc->master->master_sem); - ec_fmmu_config_init(fmmu, sc, domain, sync_index, dir); + ec_fmmu_config_init(fmmu, sc, sync_index, dir); + fmmu_logical_start_address = domain->tx_size; + tx_size = fmmu->data_size; + if (sc->allow_overlapping_pdos && sc->used_fmmus > 0) { + prev_fmmu = &sc->fmmu_configs[sc->used_fmmus-1]; + if (fmmu->dir != prev_fmmu->dir && prev_fmmu->tx_size != 0) { + // prev fmmu has opposite direction + // and is not already paired with prev-prev fmmu + prev_fmmu->tx_size = max(fmmu->data_size,prev_fmmu->data_size); + tx_size = 0; + fmmu_logical_start_address = prev_fmmu->logical_start_address; + } + } + ec_fmmu_config_domain(fmmu,domain,fmmu_logical_start_address,tx_size); up(&sc->master->master_sem); - return fmmu->logical_start_address; + ++sc->used_fmmus; + return fmmu->domain_address; } /*****************************************************************************/ @@ -227,8 +244,6 @@ slave->config = sc; sc->slave = slave; - ec_slave_request_state(slave, EC_SLAVE_STATE_OP); - EC_CONFIG_DBG(sc, 1, "Attached slave %u.\n", slave->ring_position); return 0; @@ -494,6 +509,18 @@ /*****************************************************************************/ +void ecrt_slave_config_overlapping_pdos(ec_slave_config_t *sc, + uint8_t allow_overlapping_pdos ) +{ + if (sc->master->debug_level) + EC_DBG("%s(sc = 0x%p, allow_overlapping_pdos = %u)\n", + __func__, sc, allow_overlapping_pdos); + + sc->allow_overlapping_pdos = allow_overlapping_pdos; +} + +/*****************************************************************************/ + int ecrt_slave_config_pdo_assign_add(ec_slave_config_t *sc, uint8_t sync_index, uint16_t pdo_index) { @@ -1039,6 +1066,7 @@ EXPORT_SYMBOL(ecrt_slave_config_sync_manager); EXPORT_SYMBOL(ecrt_slave_config_watchdog); +EXPORT_SYMBOL(ecrt_slave_config_overlapping_pdos); EXPORT_SYMBOL(ecrt_slave_config_pdo_assign_add); EXPORT_SYMBOL(ecrt_slave_config_pdo_assign_clear); EXPORT_SYMBOL(ecrt_slave_config_pdo_mapping_add); diff -r e9f722488fcd -r be807e224b0e master/slave_config.h --- a/master/slave_config.h Mon Oct 25 17:06:45 2010 +0200 +++ b/master/slave_config.h Sat Nov 27 17:02:54 2010 +0100 @@ -126,7 +126,8 @@ intervals (see spec. reg. 0x0400). */ uint16_t watchdog_intervals; /**< Process data watchdog intervals (see spec. reg. 0x0420). */ - + uint8_t allow_overlapping_pdos; /**< Allow input PDOs use the same frame space + as output PDOs. */ ec_slave_t *slave; /**< Slave pointer. This is \a NULL, if the slave is offline. */ diff -r e9f722488fcd -r be807e224b0e tool/CommandDomains.cpp --- a/tool/CommandDomains.cpp Mon Oct 25 17:06:45 2010 +0200 +++ b/tool/CommandDomains.cpp Sat Nov 27 17:02:54 2010 +0100 @@ -143,6 +143,8 @@ << setw(8) << domain.logical_base_address << ", Size " << dec << setfill(' ') << setw(3) << domain.data_size + << ", TxSize " << dec << setfill(' ') + << setw(3) << domain.tx_size << ", WorkingCounter " << domain.working_counter << "/" << domain.expected_working_counter << endl; @@ -173,7 +175,7 @@ << setw(8) << fmmu.logical_address << ", Size " << dec << fmmu.data_size << endl; - dataOffset = fmmu.logical_address - domain.logical_base_address; + dataOffset = fmmu.domain_address - domain.logical_base_address; if (dataOffset + fmmu.data_size > domain.data_size) { stringstream err; delete [] processData; diff -r e9f722488fcd -r be807e224b0e tool/CommandFoeWrite.cpp --- a/tool/CommandFoeWrite.cpp Mon Oct 25 17:06:45 2010 +0200 +++ b/tool/CommandFoeWrite.cpp Sat Nov 27 17:02:54 2010 +0100 @@ -140,7 +140,8 @@ // write data via foe to the slave data.offset = 0; - strncpy(data.file_name, storeFileName.c_str(), sizeof(data.file_name)); + strncpy(data.file_name, storeFileName.c_str(), sizeof(data.file_name)-1); + data.file_name[sizeof(data.file_name)-1] = '\0'; try { m.writeFoe(&data);