# HG changeset patch # User Florian Pose # Date 1222779034 0 # Node ID ed5a56863603e86a3ee4c38b7ef521efb45e01a8 # Parent f842edcbbe4b52c70b14ea86f9c725f6a3a7f0df Removed untested r8169 driver. diff -r f842edcbbe4b -r ed5a56863603 configure.ac --- a/configure.ac Tue Sep 30 12:41:34 2008 +0000 +++ b/configure.ac Tue Sep 30 12:50:34 2008 +0000 @@ -239,61 +239,6 @@ AC_SUBST(KERNEL_E1000,[$kernele1000]) #------------------------------------------------------------------------------ -# r8169 driver -#------------------------------------------------------------------------------ - -AC_ARG_ENABLE([r8169], - AS_HELP_STRING([--enable-r8169], - [Enable r8169 driver]), - [ - case "${enableval}" in - yes) enabler8169=1 - ;; - no) enabler8169=0 - ;; - *) AC_MSG_ERROR([Invalid value for --enable-r8169]) - ;; - esac - ], - [enabler8169=0] # disabled by default -) - -AM_CONDITIONAL(ENABLE_R8169, test "x$enabler8169" = "x1") -AC_SUBST(ENABLE_R8169,[$enabler8169]) - -AC_ARG_WITH([r8169-kernel], - AC_HELP_STRING( - [--with-r8169-kernel=], - [r8169 kernel (only if differing)] - ), - [ - kernelr8169=[$withval] - ], - [ - kernelr8169=$linuxversion - ] -) - -if test "x${enabler8169}" = "x1"; then - AC_MSG_CHECKING([for kernel for r8169 driver]) - - kernels=`ls -1 ${srcdir}/devices/ | grep -oE "^r8169-.*-" | cut -d "-" -f 2 | uniq` - found=0 - for k in $kernels; do - if test "$kernelr8169" = "$k"; then - found=1 - fi - done - if test $found -ne 1; then - AC_MSG_ERROR([kernel $kernelr8169 not available for r8169 driver!]) - fi - - AC_MSG_RESULT([$kernelr8169]) -fi - -AC_SUBST(KERNEL_R8169,[$kernelr8169]) - -#------------------------------------------------------------------------------ # RTAI path (optional) #------------------------------------------------------------------------------ diff -r f842edcbbe4b -r ed5a56863603 devices/Kbuild.in --- a/devices/Kbuild.in Tue Sep 30 12:41:34 2008 +0000 +++ b/devices/Kbuild.in Tue Sep 30 12:50:34 2008 +0000 @@ -57,11 +57,4 @@ obj-m += e1000/ endif -ifeq (@ENABLE_R8169@,1) - EC_R8169_OBJ := r8169-@KERNEL_R8169@-ethercat.o - obj-m += ec_r8169.o - ec_r8169-objs := $(EC_R8169_OBJ) - CFLAGS_$(EC_R8169_OBJ) = -DSVNREV=$(REV) -endif - #------------------------------------------------------------------------------ diff -r f842edcbbe4b -r ed5a56863603 devices/Makefile.am --- a/devices/Makefile.am Tue Sep 30 12:41:34 2008 +0000 +++ b/devices/Makefile.am Tue Sep 30 12:50:34 2008 +0000 @@ -72,9 +72,6 @@ if ENABLE_E1000 $(MAKE) -C e1000 modules_install endif -if ENABLE_R8169 - cp $(srcdir)/ec_r8169.ko $(DESTDIR)$(LINUX_MOD_PATH) -endif clean-local: $(MAKE) -C "$(LINUX_SOURCE_DIR)" M="@abs_srcdir@" clean diff -r f842edcbbe4b -r ed5a56863603 devices/r8169-2.6.22-ethercat.c --- a/devices/r8169-2.6.22-ethercat.c Tue Sep 30 12:41:34 2008 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,3203 +0,0 @@ -/****************************************************************************** - * - * $Id$ - * - * Copyright (C) 2006 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 - * as published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * 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 right to use EtherCAT Technology is granted and comes free of - * charge under condition of compatibility of product made by - * Licensee. People intending to distribute/sell products based on the - * code, have to sign an agreement to guarantee that products using - * software based on IgH EtherCAT master stay compatible with the actual - * EtherCAT specification (which are released themselves as an open - * standard) as the (only) precondition to have the right to use EtherCAT - * Technology, IP and trade marks. - * - *****************************************************************************/ - -/* - * r8169.c: RealTek 8169/8168/8101 ethernet driver. - * - * Copyright (c) 2002 ShuChen - * Copyright (c) 2003 - 2007 Francois Romieu - * Copyright (c) a lot of people too. Please respect their work. - * - * See MAINTAINERS file for support contact information. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#ifdef CONFIG_R8169_NAPI -#define NAPI_SUFFIX "-NAPI" -#else -#define NAPI_SUFFIX "" -#endif - -#define RTL8169_VERSION "2.2LK" NAPI_SUFFIX -#define MODULENAME "r8169" -#define PFX MODULENAME ": " - -#include "../globals.h" -#include "ecdev.h" - -#ifdef RTL8169_DEBUG -#define assert(expr) \ - if (!(expr)) { \ - printk( "Assertion failed! %s,%s,%s,line=%d\n", \ - #expr,__FILE__,__FUNCTION__,__LINE__); \ - } -#define dprintk(fmt, args...) do { printk(PFX fmt, ## args); } while (0) -#else -#define assert(expr) do {} while (0) -#define dprintk(fmt, args...) do {} while (0) -#endif /* RTL8169_DEBUG */ - -#define R8169_MSG_DEFAULT \ - (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN) - -#define TX_BUFFS_AVAIL(tp) \ - (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) - -#ifdef CONFIG_R8169_NAPI -#define rtl8169_rx_skb netif_receive_skb -#define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb -#define rtl8169_rx_quota(count, quota) min(count, quota) -#else -#define rtl8169_rx_skb netif_rx -#define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx -#define rtl8169_rx_quota(count, quota) count -#endif - -/* Maximum events (Rx packets, etc.) to handle at each interrupt. */ -static const int max_interrupt_work = 20; - -/* 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 const int multicast_filter_limit = 32; - -/* MAC address length */ -#define MAC_ADDR_LEN 6 - -#define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ -#define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ -#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ -#define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ -#define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ -#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ -#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ - -#define R8169_REGS_SIZE 256 -#define R8169_NAPI_WEIGHT 64 -#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ -#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ -#define RX_BUF_SIZE 1536 /* Rx Buffer size */ -#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) -#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) - -#define RTL8169_TX_TIMEOUT (6*HZ) -#define RTL8169_PHY_TIMEOUT (10*HZ) - -/* write/read MMIO register */ -#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) -#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) -#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) -#define RTL_R8(reg) readb (ioaddr + (reg)) -#define RTL_R16(reg) readw (ioaddr + (reg)) -#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) - -enum mac_version { - RTL_GIGA_MAC_VER_01 = 0x01, // 8169 - RTL_GIGA_MAC_VER_02 = 0x02, // 8169S - RTL_GIGA_MAC_VER_03 = 0x03, // 8110S - RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB - RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd - RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe - RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb - RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be 8168Bf - RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb 8101Ec - RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 - RTL_GIGA_MAC_VER_15 = 0x0f // 8101 -}; - -enum phy_version { - RTL_GIGA_PHY_VER_C = 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */ - RTL_GIGA_PHY_VER_D = 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */ - RTL_GIGA_PHY_VER_E = 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */ - RTL_GIGA_PHY_VER_F = 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */ - RTL_GIGA_PHY_VER_G = 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */ - RTL_GIGA_PHY_VER_H = 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */ -}; - -#define _R(NAME,MAC,MASK) \ - { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } - -static const struct { - const char *name; - u8 mac_version; - u32 RxConfigMask; /* Clears the bits supported by this chip */ -} rtl_chip_info[] = { - _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169 - _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S - _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S - _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB - _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd - _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe - _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E - _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E - _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139 - _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139 - _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880) // PCI-E 8139 -}; -#undef _R - -enum cfg_version { - RTL_CFG_0 = 0x00, - RTL_CFG_1, - RTL_CFG_2 -}; - -static void rtl_hw_start_8169(struct net_device *); -static void rtl_hw_start_8168(struct net_device *); -static void rtl_hw_start_8101(struct net_device *); - -static struct pci_device_id rtl8169_pci_tbl[] = { - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 }, - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 }, - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(0x1259, 0xc107), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 }, - { PCI_VENDOR_ID_LINKSYS, 0x1032, - PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 }, - {0,}, -}; - -MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl); - -static int rx_copybreak = 200; -static int use_dac; -static struct { - u32 msg_enable; -} debug = { -1 }; - -enum rtl_registers { - MAC0 = 0, /* Ethernet hardware address. */ - MAC4 = 4, - MAR0 = 8, /* Multicast filter. */ - CounterAddrLow = 0x10, - CounterAddrHigh = 0x14, - TxDescStartAddrLow = 0x20, - TxDescStartAddrHigh = 0x24, - TxHDescStartAddrLow = 0x28, - TxHDescStartAddrHigh = 0x2c, - FLASH = 0x30, - ERSR = 0x36, - ChipCmd = 0x37, - TxPoll = 0x38, - IntrMask = 0x3c, - IntrStatus = 0x3e, - TxConfig = 0x40, - RxConfig = 0x44, - RxMissed = 0x4c, - Cfg9346 = 0x50, - Config0 = 0x51, - Config1 = 0x52, - Config2 = 0x53, - Config3 = 0x54, - Config4 = 0x55, - Config5 = 0x56, - MultiIntr = 0x5c, - PHYAR = 0x60, - TBICSR = 0x64, - TBI_ANAR = 0x68, - TBI_LPAR = 0x6a, - PHYstatus = 0x6c, - RxMaxSize = 0xda, - CPlusCmd = 0xe0, - IntrMitigate = 0xe2, - RxDescAddrLow = 0xe4, - RxDescAddrHigh = 0xe8, - EarlyTxThres = 0xec, - FuncEvent = 0xf0, - FuncEventMask = 0xf4, - FuncPresetState = 0xf8, - FuncForceEvent = 0xfc, -}; - -enum rtl_register_content { - /* InterruptStatusBits */ - SYSErr = 0x8000, - PCSTimeout = 0x4000, - SWInt = 0x0100, - TxDescUnavail = 0x0080, - RxFIFOOver = 0x0040, - LinkChg = 0x0020, - RxOverflow = 0x0010, - TxErr = 0x0008, - TxOK = 0x0004, - RxErr = 0x0002, - RxOK = 0x0001, - - /* RxStatusDesc */ - RxFOVF = (1 << 23), - RxRWT = (1 << 22), - RxRES = (1 << 21), - RxRUNT = (1 << 20), - RxCRC = (1 << 19), - - /* ChipCmdBits */ - CmdReset = 0x10, - CmdRxEnb = 0x08, - CmdTxEnb = 0x04, - RxBufEmpty = 0x01, - - /* TXPoll register p.5 */ - HPQ = 0x80, /* Poll cmd on the high prio queue */ - NPQ = 0x40, /* Poll cmd on the low prio queue */ - FSWInt = 0x01, /* Forced software interrupt */ - - /* Cfg9346Bits */ - Cfg9346_Lock = 0x00, - Cfg9346_Unlock = 0xc0, - - /* rx_mode_bits */ - AcceptErr = 0x20, - AcceptRunt = 0x10, - AcceptBroadcast = 0x08, - AcceptMulticast = 0x04, - AcceptMyPhys = 0x02, - AcceptAllPhys = 0x01, - - /* RxConfigBits */ - RxCfgFIFOShift = 13, - RxCfgDMAShift = 8, - - /* TxConfigBits */ - TxInterFrameGapShift = 24, - TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ - - /* Config1 register p.24 */ - PMEnable = (1 << 0), /* Power Management Enable */ - - /* Config2 register p. 25 */ - PCI_Clock_66MHz = 0x01, - PCI_Clock_33MHz = 0x00, - - /* Config3 register p.25 */ - MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */ - LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */ - - /* Config5 register p.27 */ - BWF = (1 << 6), /* Accept Broadcast wakeup frame */ - MWF = (1 << 5), /* Accept Multicast wakeup frame */ - UWF = (1 << 4), /* Accept Unicast wakeup frame */ - LanWake = (1 << 1), /* LanWake enable/disable */ - PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ - - /* TBICSR p.28 */ - TBIReset = 0x80000000, - TBILoopback = 0x40000000, - TBINwEnable = 0x20000000, - TBINwRestart = 0x10000000, - TBILinkOk = 0x02000000, - TBINwComplete = 0x01000000, - - /* CPlusCmd p.31 */ - PktCntrDisable = (1 << 7), // 8168 - RxVlan = (1 << 6), - RxChkSum = (1 << 5), - PCIDAC = (1 << 4), - PCIMulRW = (1 << 3), - INTT_0 = 0x0000, // 8168 - INTT_1 = 0x0001, // 8168 - INTT_2 = 0x0002, // 8168 - INTT_3 = 0x0003, // 8168 - - /* rtl8169_PHYstatus */ - TBI_Enable = 0x80, - TxFlowCtrl = 0x40, - RxFlowCtrl = 0x20, - _1000bpsF = 0x10, - _100bps = 0x08, - _10bps = 0x04, - LinkStatus = 0x02, - FullDup = 0x01, - - /* _TBICSRBit */ - TBILinkOK = 0x02000000, - - /* DumpCounterCommand */ - CounterDump = 0x8, -}; - -enum desc_status_bit { - DescOwn = (1 << 31), /* Descriptor is owned by NIC */ - RingEnd = (1 << 30), /* End of descriptor ring */ - FirstFrag = (1 << 29), /* First segment of a packet */ - LastFrag = (1 << 28), /* Final segment of a packet */ - - /* Tx private */ - LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ - MSSShift = 16, /* MSS value position */ - MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */ - IPCS = (1 << 18), /* Calculate IP checksum */ - UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ - TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ - TxVlanTag = (1 << 17), /* Add VLAN tag */ - - /* Rx private */ - PID1 = (1 << 18), /* Protocol ID bit 1/2 */ - PID0 = (1 << 17), /* Protocol ID bit 2/2 */ - -#define RxProtoUDP (PID1) -#define RxProtoTCP (PID0) -#define RxProtoIP (PID1 | PID0) -#define RxProtoMask RxProtoIP - - IPFail = (1 << 16), /* IP checksum failed */ - UDPFail = (1 << 15), /* UDP/IP checksum failed */ - TCPFail = (1 << 14), /* TCP/IP checksum failed */ - RxVlanTag = (1 << 16), /* VLAN tag available */ -}; - -#define RsvdMask 0x3fffc000 - -struct TxDesc { - __le32 opts1; - __le32 opts2; - __le64 addr; -}; - -struct RxDesc { - __le32 opts1; - __le32 opts2; - __le64 addr; -}; - -struct ring_info { - struct sk_buff *skb; - u32 len; - u8 __pad[sizeof(void *) - sizeof(u32)]; -}; - -struct rtl8169_private { - void __iomem *mmio_addr; /* memory map physical address */ - struct pci_dev *pci_dev; /* Index of PCI device */ - struct net_device *dev; - struct net_device_stats stats; /* statistics of net device */ - spinlock_t lock; /* spin lock flag */ - u32 msg_enable; - int chipset; - int mac_version; - int phy_version; - u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ - u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ - u32 dirty_rx; - u32 dirty_tx; - struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */ - struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */ - dma_addr_t TxPhyAddr; - dma_addr_t RxPhyAddr; - struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */ - struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */ - unsigned align; - unsigned rx_buf_sz; - struct timer_list timer; - u16 cp_cmd; - u16 intr_event; - u16 napi_event; - u16 intr_mask; - int phy_auto_nego_reg; - int phy_1000_ctrl_reg; -#ifdef CONFIG_R8169_VLAN - struct vlan_group *vlgrp; -#endif - int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex); - void (*get_settings)(struct net_device *, struct ethtool_cmd *); - void (*phy_reset_enable)(void __iomem *); - void (*hw_start)(struct net_device *); - unsigned int (*phy_reset_pending)(void __iomem *); - unsigned int (*link_ok)(void __iomem *); - struct delayed_work task; - unsigned wol_enabled : 1; - - ec_device_t *ecdev; -}; - -MODULE_AUTHOR("Realtek and the Linux r8169 crew "); -MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet/EtherCAT driver"); -module_param(rx_copybreak, int, 0); -MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); -module_param(use_dac, int, 0); -MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot."); -module_param_named(debug, debug.msg_enable, int, 0); -MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(RTL8169_VERSION); - -void ec_poll(struct net_device *); - -static int rtl8169_open(struct net_device *dev); -static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev); -static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance); -static int rtl8169_init_ring(struct net_device *dev); -static void rtl_hw_start(struct net_device *dev); -static int rtl8169_close(struct net_device *dev); -static void rtl_set_rx_mode(struct net_device *dev); -static void rtl8169_tx_timeout(struct net_device *dev); -static struct net_device_stats *rtl8169_get_stats(struct net_device *dev); -static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *, - void __iomem *); -static int rtl8169_change_mtu(struct net_device *dev, int new_mtu); -static void rtl8169_down(struct net_device *dev); -static void rtl8169_rx_clear(struct rtl8169_private *tp); - -#ifdef CONFIG_R8169_NAPI -static int rtl8169_poll(struct net_device *dev, int *budget); -#endif - -static const unsigned int rtl8169_rx_config = - (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); - -static void mdio_write(void __iomem *ioaddr, int reg_addr, int value) -{ - int i; - - RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0xFF) << 16 | value); - - for (i = 20; i > 0; i--) { - /* - * Check if the RTL8169 has completed writing to the specified - * MII register. - */ - if (!(RTL_R32(PHYAR) & 0x80000000)) - break; - udelay(25); - } -} - -static int mdio_read(void __iomem *ioaddr, int reg_addr) -{ - int i, value = -1; - - RTL_W32(PHYAR, 0x0 | (reg_addr & 0xFF) << 16); - - for (i = 20; i > 0; i--) { - /* - * Check if the RTL8169 has completed retrieving data from - * the specified MII register. - */ - if (RTL_R32(PHYAR) & 0x80000000) { - value = (int) (RTL_R32(PHYAR) & 0xFFFF); - break; - } - udelay(25); - } - return value; -} - -static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr) -{ - RTL_W16(IntrMask, 0x0000); - - RTL_W16(IntrStatus, 0xffff); -} - -static void rtl8169_asic_down(void __iomem *ioaddr) -{ - RTL_W8(ChipCmd, 0x00); - rtl8169_irq_mask_and_ack(ioaddr); - RTL_R16(CPlusCmd); -} - -static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr) -{ - return RTL_R32(TBICSR) & TBIReset; -} - -static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr) -{ - return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET; -} - -static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr) -{ - return RTL_R32(TBICSR) & TBILinkOk; -} - -static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr) -{ - return RTL_R8(PHYstatus) & LinkStatus; -} - -static void rtl8169_tbi_reset_enable(void __iomem *ioaddr) -{ - RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset); -} - -static void rtl8169_xmii_reset_enable(void __iomem *ioaddr) -{ - unsigned int val; - - val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET; - mdio_write(ioaddr, MII_BMCR, val & 0xffff); -} - -static void rtl8169_check_link_status(struct net_device *dev, - struct rtl8169_private *tp, - void __iomem *ioaddr) -{ - unsigned long flags; - - spin_lock_irqsave(&tp->lock, flags); - - if (tp->link_ok(ioaddr)) { - if(tp->ecdev) { - ecdev_set_link(tp->ecdev, 1); - } else { - netif_carrier_on(dev); - if (netif_msg_ifup(tp)) - printk(KERN_INFO PFX "%s: link up\n", dev->name); - } - } else { - if(tp->ecdev) { - ecdev_set_link(tp->ecdev, 0); - } else { - if (netif_msg_ifdown(tp)) - printk(KERN_INFO PFX "%s: link down\n", dev->name); - netif_carrier_off(dev); - } - } - spin_unlock_irqrestore(&tp->lock, flags); -} - -static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - u8 options; - - wol->wolopts = 0; - -#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST) - wol->supported = WAKE_ANY; - - spin_lock_irq(&tp->lock); - - options = RTL_R8(Config1); - if (!(options & PMEnable)) - goto out_unlock; - - options = RTL_R8(Config3); - if (options & LinkUp) - wol->wolopts |= WAKE_PHY; - if (options & MagicPacket) - wol->wolopts |= WAKE_MAGIC; - - options = RTL_R8(Config5); - if (options & UWF) - wol->wolopts |= WAKE_UCAST; - if (options & BWF) - wol->wolopts |= WAKE_BCAST; - if (options & MWF) - wol->wolopts |= WAKE_MCAST; - -out_unlock: - spin_unlock_irq(&tp->lock); -} - -static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned int i; - static struct { - u32 opt; - u16 reg; - u8 mask; - } cfg[] = { - { WAKE_ANY, Config1, PMEnable }, - { WAKE_PHY, Config3, LinkUp }, - { WAKE_MAGIC, Config3, MagicPacket }, - { WAKE_UCAST, Config5, UWF }, - { WAKE_BCAST, Config5, BWF }, - { WAKE_MCAST, Config5, MWF }, - { WAKE_ANY, Config5, LanWake } - }; - - spin_lock_irq(&tp->lock); - - RTL_W8(Cfg9346, Cfg9346_Unlock); - - for (i = 0; i < ARRAY_SIZE(cfg); i++) { - u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask; - if (wol->wolopts & cfg[i].opt) - options |= cfg[i].mask; - RTL_W8(cfg[i].reg, options); - } - - RTL_W8(Cfg9346, Cfg9346_Lock); - - tp->wol_enabled = (wol->wolopts) ? 1 : 0; - - spin_unlock_irq(&tp->lock); - - return 0; -} - -static void rtl8169_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - struct rtl8169_private *tp = netdev_priv(dev); - - strcpy(info->driver, MODULENAME); - strcpy(info->version, RTL8169_VERSION); - strcpy(info->bus_info, pci_name(tp->pci_dev)); -} - -static int rtl8169_get_regs_len(struct net_device *dev) -{ - return R8169_REGS_SIZE; -} - -static int rtl8169_set_speed_tbi(struct net_device *dev, - u8 autoneg, u16 speed, u8 duplex) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - int ret = 0; - u32 reg; - - reg = RTL_R32(TBICSR); - if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) && - (duplex == DUPLEX_FULL)) { - RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart)); - } else if (autoneg == AUTONEG_ENABLE) - RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart); - else { - if (netif_msg_link(tp)) { - printk(KERN_WARNING "%s: " - "incorrect speed setting refused in TBI mode\n", - dev->name); - } - ret = -EOPNOTSUPP; - } - - return ret; -} - -static int rtl8169_set_speed_xmii(struct net_device *dev, - u8 autoneg, u16 speed, u8 duplex) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - int auto_nego, giga_ctrl; - - auto_nego = mdio_read(ioaddr, MII_ADVERTISE); - auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL | - ADVERTISE_100HALF | ADVERTISE_100FULL); - giga_ctrl = mdio_read(ioaddr, MII_CTRL1000); - giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); - - if (autoneg == AUTONEG_ENABLE) { - auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL | - ADVERTISE_100HALF | ADVERTISE_100FULL); - giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; - } else { - if (speed == SPEED_10) - auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL; - else if (speed == SPEED_100) - auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL; - else if (speed == SPEED_1000) - giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; - - if (duplex == DUPLEX_HALF) - auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL); - - if (duplex == DUPLEX_FULL) - auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF); - - /* This tweak comes straight from Realtek's driver. */ - if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) && - (tp->mac_version == RTL_GIGA_MAC_VER_13)) { - auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA; - } - } - - /* The 8100e/8101e do Fast Ethernet only. */ - if ((tp->mac_version == RTL_GIGA_MAC_VER_13) || - (tp->mac_version == RTL_GIGA_MAC_VER_14) || - (tp->mac_version == RTL_GIGA_MAC_VER_15)) { - if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF)) && - netif_msg_link(tp)) { - printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n", - dev->name); - } - giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); - } - - auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; - - if (tp->mac_version == RTL_GIGA_MAC_VER_12) { - /* Vendor specific (0x1f) and reserved (0x0e) MII registers. */ - mdio_write(ioaddr, 0x1f, 0x0000); - mdio_write(ioaddr, 0x0e, 0x0000); - } - - tp->phy_auto_nego_reg = auto_nego; - tp->phy_1000_ctrl_reg = giga_ctrl; - - mdio_write(ioaddr, MII_ADVERTISE, auto_nego); - mdio_write(ioaddr, MII_CTRL1000, giga_ctrl); - mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART); - return 0; -} - -static int rtl8169_set_speed(struct net_device *dev, - u8 autoneg, u16 speed, u8 duplex) -{ - struct rtl8169_private *tp = netdev_priv(dev); - int ret; - - ret = tp->set_speed(dev, autoneg, speed, duplex); - - if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) - mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT); - - return ret; -} - -static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct rtl8169_private *tp = netdev_priv(dev); - unsigned long flags; - int ret; - - spin_lock_irqsave(&tp->lock, flags); - ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex); - spin_unlock_irqrestore(&tp->lock, flags); - - return ret; -} - -static u32 rtl8169_get_rx_csum(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - - return tp->cp_cmd & RxChkSum; -} - -static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned long flags; - - spin_lock_irqsave(&tp->lock, flags); - - if (data) - tp->cp_cmd |= RxChkSum; - else - tp->cp_cmd &= ~RxChkSum; - - RTL_W16(CPlusCmd, tp->cp_cmd); - RTL_R16(CPlusCmd); - - spin_unlock_irqrestore(&tp->lock, flags); - - return 0; -} - -#ifdef CONFIG_R8169_VLAN - -static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, - struct sk_buff *skb) -{ - return (tp->vlgrp && vlan_tx_tag_present(skb)) ? - TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00; -} - -static void rtl8169_vlan_rx_register(struct net_device *dev, - struct vlan_group *grp) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned long flags; - - spin_lock_irqsave(&tp->lock, flags); - tp->vlgrp = grp; - if (tp->vlgrp) - tp->cp_cmd |= RxVlan; - else - tp->cp_cmd &= ~RxVlan; - RTL_W16(CPlusCmd, tp->cp_cmd); - RTL_R16(CPlusCmd); - spin_unlock_irqrestore(&tp->lock, flags); -} - -static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, - struct sk_buff *skb) -{ - u32 opts2 = le32_to_cpu(desc->opts2); - int ret; - - if (tp->vlgrp && (opts2 & RxVlanTag)) { - rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, swab16(opts2 & 0xffff)); - ret = 0; - } else - ret = -1; - desc->opts2 = 0; - return ret; -} - -#else /* !CONFIG_R8169_VLAN */ - -static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, - struct sk_buff *skb) -{ - return 0; -} - -static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, - struct sk_buff *skb) -{ - return -1; -} - -#endif - -static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - u32 status; - - cmd->supported = - SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE; - cmd->port = PORT_FIBRE; - cmd->transceiver = XCVR_INTERNAL; - - status = RTL_R32(TBICSR); - cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0; - cmd->autoneg = !!(status & TBINwEnable); - - cmd->speed = SPEED_1000; - cmd->duplex = DUPLEX_FULL; /* Always set */ -} - -static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - u8 status; - - cmd->supported = SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | - SUPPORTED_100baseT_Full | - SUPPORTED_1000baseT_Full | - SUPPORTED_Autoneg | - SUPPORTED_TP; - - cmd->autoneg = 1; - cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg; - - if (tp->phy_auto_nego_reg & ADVERTISE_10HALF) - cmd->advertising |= ADVERTISED_10baseT_Half; - if (tp->phy_auto_nego_reg & ADVERTISE_10FULL) - cmd->advertising |= ADVERTISED_10baseT_Full; - if (tp->phy_auto_nego_reg & ADVERTISE_100HALF) - cmd->advertising |= ADVERTISED_100baseT_Half; - if (tp->phy_auto_nego_reg & ADVERTISE_100FULL) - cmd->advertising |= ADVERTISED_100baseT_Full; - if (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL) - cmd->advertising |= ADVERTISED_1000baseT_Full; - - status = RTL_R8(PHYstatus); - - if (status & _1000bpsF) - cmd->speed = SPEED_1000; - else if (status & _100bps) - cmd->speed = SPEED_100; - else if (status & _10bps) - cmd->speed = SPEED_10; - - if (status & TxFlowCtrl) - cmd->advertising |= ADVERTISED_Asym_Pause; - if (status & RxFlowCtrl) - cmd->advertising |= ADVERTISED_Pause; - - cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ? - DUPLEX_FULL : DUPLEX_HALF; -} - -static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct rtl8169_private *tp = netdev_priv(dev); - unsigned long flags; - - spin_lock_irqsave(&tp->lock, flags); - - tp->get_settings(dev, cmd); - - spin_unlock_irqrestore(&tp->lock, flags); - return 0; -} - -static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs, - void *p) -{ - struct rtl8169_private *tp = netdev_priv(dev); - unsigned long flags; - - if (regs->len > R8169_REGS_SIZE) - regs->len = R8169_REGS_SIZE; - - spin_lock_irqsave(&tp->lock, flags); - memcpy_fromio(p, tp->mmio_addr, regs->len); - spin_unlock_irqrestore(&tp->lock, flags); -} - -static u32 rtl8169_get_msglevel(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - - return tp->msg_enable; -} - -static void rtl8169_set_msglevel(struct net_device *dev, u32 value) -{ - struct rtl8169_private *tp = netdev_priv(dev); - - tp->msg_enable = value; -} - -static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = { - "tx_packets", - "rx_packets", - "tx_errors", - "rx_errors", - "rx_missed", - "align_errors", - "tx_single_collisions", - "tx_multi_collisions", - "unicast", - "broadcast", - "multicast", - "tx_aborted", - "tx_underrun", -}; - -struct rtl8169_counters { - u64 tx_packets; - u64 rx_packets; - u64 tx_errors; - u32 rx_errors; - u16 rx_missed; - u16 align_errors; - u32 tx_one_collision; - u32 tx_multi_collision; - u64 rx_unicast; - u64 rx_broadcast; - u32 rx_multicast; - u16 tx_aborted; - u16 tx_underun; -}; - -static int rtl8169_get_stats_count(struct net_device *dev) -{ - return ARRAY_SIZE(rtl8169_gstrings); -} - -static void rtl8169_get_ethtool_stats(struct net_device *dev, - struct ethtool_stats *stats, u64 *data) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - struct rtl8169_counters *counters; - dma_addr_t paddr; - u32 cmd; - - ASSERT_RTNL(); - - counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr); - if (!counters) - return; - - RTL_W32(CounterAddrHigh, (u64)paddr >> 32); - cmd = (u64)paddr & DMA_32BIT_MASK; - RTL_W32(CounterAddrLow, cmd); - RTL_W32(CounterAddrLow, cmd | CounterDump); - - while (RTL_R32(CounterAddrLow) & CounterDump) { - if (msleep_interruptible(1)) - break; - } - - RTL_W32(CounterAddrLow, 0); - RTL_W32(CounterAddrHigh, 0); - - data[0] = le64_to_cpu(counters->tx_packets); - data[1] = le64_to_cpu(counters->rx_packets); - data[2] = le64_to_cpu(counters->tx_errors); - data[3] = le32_to_cpu(counters->rx_errors); - data[4] = le16_to_cpu(counters->rx_missed); - data[5] = le16_to_cpu(counters->align_errors); - data[6] = le32_to_cpu(counters->tx_one_collision); - data[7] = le32_to_cpu(counters->tx_multi_collision); - data[8] = le64_to_cpu(counters->rx_unicast); - data[9] = le64_to_cpu(counters->rx_broadcast); - data[10] = le32_to_cpu(counters->rx_multicast); - data[11] = le16_to_cpu(counters->tx_aborted); - data[12] = le16_to_cpu(counters->tx_underun); - - pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr); -} - -static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data) -{ - switch(stringset) { - case ETH_SS_STATS: - memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings)); - break; - } -} - -static const struct ethtool_ops rtl8169_ethtool_ops = { - .get_drvinfo = rtl8169_get_drvinfo, - .get_regs_len = rtl8169_get_regs_len, - .get_link = ethtool_op_get_link, - .get_settings = rtl8169_get_settings, - .set_settings = rtl8169_set_settings, - .get_msglevel = rtl8169_get_msglevel, - .set_msglevel = rtl8169_set_msglevel, - .get_rx_csum = rtl8169_get_rx_csum, - .set_rx_csum = rtl8169_set_rx_csum, - .get_tx_csum = ethtool_op_get_tx_csum, - .set_tx_csum = ethtool_op_set_tx_csum, - .get_sg = ethtool_op_get_sg, - .set_sg = ethtool_op_set_sg, - .get_tso = ethtool_op_get_tso, - .set_tso = ethtool_op_set_tso, - .get_regs = rtl8169_get_regs, - .get_wol = rtl8169_get_wol, - .set_wol = rtl8169_set_wol, - .get_strings = rtl8169_get_strings, - .get_stats_count = rtl8169_get_stats_count, - .get_ethtool_stats = rtl8169_get_ethtool_stats, -}; - -static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg, - int bitnum, int bitval) -{ - int val; - - val = mdio_read(ioaddr, reg); - val = (bitval == 1) ? - val | (bitval << bitnum) : val & ~(0x0001 << bitnum); - mdio_write(ioaddr, reg, val & 0xffff); -} - -static void rtl8169_get_mac_version(struct rtl8169_private *tp, - void __iomem *ioaddr) -{ - /* - * The driver currently handles the 8168Bf and the 8168Be identically - * but they can be identified more specifically through the test below - * if needed: - * - * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be - * - * Same thing for the 8101Eb and the 8101Ec: - * - * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec - */ - const struct { - u32 mask; - int mac_version; - } mac_info[] = { - { 0x38800000, RTL_GIGA_MAC_VER_15 }, - { 0x38000000, RTL_GIGA_MAC_VER_12 }, - { 0x34000000, RTL_GIGA_MAC_VER_13 }, - { 0x30800000, RTL_GIGA_MAC_VER_14 }, - { 0x30000000, RTL_GIGA_MAC_VER_11 }, - { 0x98000000, RTL_GIGA_MAC_VER_06 }, - { 0x18000000, RTL_GIGA_MAC_VER_05 }, - { 0x10000000, RTL_GIGA_MAC_VER_04 }, - { 0x04000000, RTL_GIGA_MAC_VER_03 }, - { 0x00800000, RTL_GIGA_MAC_VER_02 }, - { 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */ - }, *p = mac_info; - u32 reg; - - reg = RTL_R32(TxConfig) & 0xfc800000; - while ((reg & p->mask) != p->mask) - p++; - tp->mac_version = p->mac_version; -} - -static void rtl8169_print_mac_version(struct rtl8169_private *tp) -{ - dprintk("mac_version = 0x%02x\n", tp->mac_version); -} - -static void rtl8169_get_phy_version(struct rtl8169_private *tp, - void __iomem *ioaddr) -{ - const struct { - u16 mask; - u16 set; - int phy_version; - } phy_info[] = { - { 0x000f, 0x0002, RTL_GIGA_PHY_VER_G }, - { 0x000f, 0x0001, RTL_GIGA_PHY_VER_F }, - { 0x000f, 0x0000, RTL_GIGA_PHY_VER_E }, - { 0x0000, 0x0000, RTL_GIGA_PHY_VER_D } /* Catch-all */ - }, *p = phy_info; - u16 reg; - - reg = mdio_read(ioaddr, MII_PHYSID2) & 0xffff; - while ((reg & p->mask) != p->set) - p++; - tp->phy_version = p->phy_version; -} - -static void rtl8169_print_phy_version(struct rtl8169_private *tp) -{ - struct { - int version; - char *msg; - u32 reg; - } phy_print[] = { - { RTL_GIGA_PHY_VER_G, "RTL_GIGA_PHY_VER_G", 0x0002 }, - { RTL_GIGA_PHY_VER_F, "RTL_GIGA_PHY_VER_F", 0x0001 }, - { RTL_GIGA_PHY_VER_E, "RTL_GIGA_PHY_VER_E", 0x0000 }, - { RTL_GIGA_PHY_VER_D, "RTL_GIGA_PHY_VER_D", 0x0000 }, - { 0, NULL, 0x0000 } - }, *p; - - for (p = phy_print; p->msg; p++) { - if (tp->phy_version == p->version) { - dprintk("phy_version == %s (%04x)\n", p->msg, p->reg); - return; - } - } - dprintk("phy_version == Unknown\n"); -} - -static void rtl8169_hw_phy_config(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - struct { - u16 regs[5]; /* Beware of bit-sign propagation */ - } phy_magic[5] = { { - { 0x0000, //w 4 15 12 0 - 0x00a1, //w 3 15 0 00a1 - 0x0008, //w 2 15 0 0008 - 0x1020, //w 1 15 0 1020 - 0x1000 } },{ //w 0 15 0 1000 - { 0x7000, //w 4 15 12 7 - 0xff41, //w 3 15 0 ff41 - 0xde60, //w 2 15 0 de60 - 0x0140, //w 1 15 0 0140 - 0x0077 } },{ //w 0 15 0 0077 - { 0xa000, //w 4 15 12 a - 0xdf01, //w 3 15 0 df01 - 0xdf20, //w 2 15 0 df20 - 0xff95, //w 1 15 0 ff95 - 0xfa00 } },{ //w 0 15 0 fa00 - { 0xb000, //w 4 15 12 b - 0xff41, //w 3 15 0 ff41 - 0xde20, //w 2 15 0 de20 - 0x0140, //w 1 15 0 0140 - 0x00bb } },{ //w 0 15 0 00bb - { 0xf000, //w 4 15 12 f - 0xdf01, //w 3 15 0 df01 - 0xdf20, //w 2 15 0 df20 - 0xff95, //w 1 15 0 ff95 - 0xbf00 } //w 0 15 0 bf00 - } - }, *p = phy_magic; - unsigned int i; - - rtl8169_print_mac_version(tp); - rtl8169_print_phy_version(tp); - - if (tp->mac_version <= RTL_GIGA_MAC_VER_01) - return; - if (tp->phy_version >= RTL_GIGA_PHY_VER_H) - return; - - dprintk("MAC version != 0 && PHY version == 0 or 1\n"); - dprintk("Do final_reg2.cfg\n"); - - /* Shazam ! */ - - if (tp->mac_version == RTL_GIGA_MAC_VER_04) { - mdio_write(ioaddr, 31, 0x0002); - mdio_write(ioaddr, 1, 0x90d0); - mdio_write(ioaddr, 31, 0x0000); - return; - } - - if ((tp->mac_version != RTL_GIGA_MAC_VER_02) && - (tp->mac_version != RTL_GIGA_MAC_VER_03)) - return; - - mdio_write(ioaddr, 31, 0x0001); //w 31 2 0 1 - mdio_write(ioaddr, 21, 0x1000); //w 21 15 0 1000 - mdio_write(ioaddr, 24, 0x65c7); //w 24 15 0 65c7 - rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 - - for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) { - int val, pos = 4; - - val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff); - mdio_write(ioaddr, pos, val); - while (--pos >= 0) - mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff); - rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1 - rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 - } - mdio_write(ioaddr, 31, 0x0000); //w 31 2 0 0 -} - -static void rtl8169_phy_timer(unsigned long __opaque) -{ - struct net_device *dev = (struct net_device *)__opaque; - struct rtl8169_private *tp = netdev_priv(dev); - struct timer_list *timer = &tp->timer; - void __iomem *ioaddr = tp->mmio_addr; - unsigned long timeout = RTL8169_PHY_TIMEOUT; - - assert(tp->mac_version > RTL_GIGA_MAC_VER_01); - assert(tp->phy_version < RTL_GIGA_PHY_VER_H); - - if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL)) - return; - - spin_lock_irq(&tp->lock); - - if (tp->phy_reset_pending(ioaddr)) { - /* - * A busy loop could burn quite a few cycles on nowadays CPU. - * Let's delay the execution of the timer for a few ticks. - */ - timeout = HZ/10; - goto out_mod_timer; - } - - if (tp->link_ok(ioaddr)) - goto out_unlock; - - if (netif_msg_link(tp)) - printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name); - - tp->phy_reset_enable(ioaddr); - -out_mod_timer: - mod_timer(timer, jiffies + timeout); -out_unlock: - spin_unlock_irq(&tp->lock); -} - -static inline void rtl8169_delete_timer(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - struct timer_list *timer = &tp->timer; - - if ((tp->mac_version <= RTL_GIGA_MAC_VER_01) || - (tp->phy_version >= RTL_GIGA_PHY_VER_H)) - return; - - del_timer_sync(timer); -} - -static inline void rtl8169_request_timer(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - struct timer_list *timer = &tp->timer; - - if ((tp->mac_version <= RTL_GIGA_MAC_VER_01) || - (tp->phy_version >= RTL_GIGA_PHY_VER_H)) - return; - - mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT); -} - -#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 rtl8169_netpoll(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - struct pci_dev *pdev = tp->pci_dev; - - disable_irq(pdev->irq); - rtl8169_interrupt(pdev->irq, dev); - enable_irq(pdev->irq); -} -#endif - -static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev, - void __iomem *ioaddr) -{ - iounmap(ioaddr); - pci_release_regions(pdev); - pci_disable_device(pdev); - free_netdev(dev); -} - -static void rtl8169_phy_reset(struct net_device *dev, - struct rtl8169_private *tp) -{ - void __iomem *ioaddr = tp->mmio_addr; - unsigned int i; - - tp->phy_reset_enable(ioaddr); - for (i = 0; i < 100; i++) { - if (!tp->phy_reset_pending(ioaddr)) - return; - msleep(1); - } - if (netif_msg_link(tp)) - printk(KERN_ERR "%s: PHY reset failed.\n", dev->name); -} - -static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) -{ - void __iomem *ioaddr = tp->mmio_addr; - - rtl8169_hw_phy_config(dev); - - dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); - RTL_W8(0x82, 0x01); - - pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); - - if (tp->mac_version <= RTL_GIGA_MAC_VER_06) - pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08); - - if (tp->mac_version == RTL_GIGA_MAC_VER_02) { - dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); - RTL_W8(0x82, 0x01); - dprintk("Set PHY Reg 0x0bh = 0x00h\n"); - mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0 - } - - rtl8169_phy_reset(dev, tp); - - /* - * rtl8169_set_speed_xmii takes good care of the Fast Ethernet - * only 8101. Don't panic. - */ - rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL); - - if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp)) - printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name); -} - -static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr) -{ - void __iomem *ioaddr = tp->mmio_addr; - u32 high; - u32 low; - - low = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24); - high = addr[4] | (addr[5] << 8); - - spin_lock_irq(&tp->lock); - - RTL_W8(Cfg9346, Cfg9346_Unlock); - RTL_W32(MAC0, low); - RTL_W32(MAC4, high); - RTL_W8(Cfg9346, Cfg9346_Lock); - - spin_unlock_irq(&tp->lock); -} - -static int rtl_set_mac_address(struct net_device *dev, void *p) -{ - struct rtl8169_private *tp = netdev_priv(dev); - struct sockaddr *addr = p; - - if (!is_valid_ether_addr(addr->sa_data)) - return -EADDRNOTAVAIL; - - memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); - - rtl_rar_set(tp, dev->dev_addr); - - return 0; -} - -static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct rtl8169_private *tp = netdev_priv(dev); - struct mii_ioctl_data *data = if_mii(ifr); - - if (!netif_running(dev)) - return -ENODEV; - - switch (cmd) { - case SIOCGMIIPHY: - data->phy_id = 32; /* Internal PHY */ - return 0; - - case SIOCGMIIREG: - data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f); - return 0; - - case SIOCSMIIREG: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in); - return 0; - } - return -EOPNOTSUPP; -} - -static const struct rtl_cfg_info { - void (*hw_start)(struct net_device *); - unsigned int region; - unsigned int align; - u16 intr_event; - u16 napi_event; -} rtl_cfg_infos [] = { - [RTL_CFG_0] = { - .hw_start = rtl_hw_start_8169, - .region = 1, - .align = 0, - .intr_event = SYSErr | LinkChg | RxOverflow | - RxFIFOOver | TxErr | TxOK | RxOK | RxErr, - .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow - }, - [RTL_CFG_1] = { - .hw_start = rtl_hw_start_8168, - .region = 2, - .align = 8, - .intr_event = SYSErr | LinkChg | RxOverflow | - TxErr | TxOK | RxOK | RxErr, - .napi_event = TxErr | TxOK | RxOK | RxOverflow - }, - [RTL_CFG_2] = { - .hw_start = rtl_hw_start_8101, - .region = 2, - .align = 8, - .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout | - RxFIFOOver | TxErr | TxOK | RxOK | RxErr, - .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow - } -}; - -static int __devinit -rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data; - const unsigned int region = cfg->region; - struct rtl8169_private *tp; - struct net_device *dev; - void __iomem *ioaddr; - unsigned int i; - int rc; - - if (netif_msg_drv(&debug)) { - printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n", - MODULENAME, RTL8169_VERSION); - } - - dev = alloc_etherdev(sizeof (*tp)); - if (!dev) { - if (netif_msg_drv(&debug)) - dev_err(&pdev->dev, "unable to alloc new ethernet\n"); - rc = -ENOMEM; - goto out; - } - - SET_MODULE_OWNER(dev); - SET_NETDEV_DEV(dev, &pdev->dev); - tp = netdev_priv(dev); - tp->dev = dev; - tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); - - /* enable device (incl. PCI PM wakeup and hotplug setup) */ - rc = pci_enable_device(pdev); - if (rc < 0) { - if (netif_msg_probe(tp)) - dev_err(&pdev->dev, "enable failure\n"); - goto err_out_free_dev_1; - } - - rc = pci_set_mwi(pdev); - if (rc < 0) - goto err_out_disable_2; - - /* make sure PCI base addr 1 is MMIO */ - if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) { - if (netif_msg_probe(tp)) { - dev_err(&pdev->dev, - "region #%d not an MMIO resource, aborting\n", - region); - } - rc = -ENODEV; - goto err_out_mwi_3; - } - - /* check for weird/broken PCI region reporting */ - if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) { - if (netif_msg_probe(tp)) { - dev_err(&pdev->dev, - "Invalid PCI region size(s), aborting\n"); - } - rc = -ENODEV; - goto err_out_mwi_3; - } - - rc = pci_request_regions(pdev, MODULENAME); - if (rc < 0) { - if (netif_msg_probe(tp)) - dev_err(&pdev->dev, "could not request regions.\n"); - goto err_out_mwi_3; - } - - tp->cp_cmd = PCIMulRW | RxChkSum; - - if ((sizeof(dma_addr_t) > 4) && - !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) { - tp->cp_cmd |= PCIDAC; - dev->features |= NETIF_F_HIGHDMA; - } else { - rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); - if (rc < 0) { - if (netif_msg_probe(tp)) { - dev_err(&pdev->dev, - "DMA configuration failed.\n"); - } - goto err_out_free_res_4; - } - } - - pci_set_master(pdev); - - /* ioremap MMIO region */ - ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE); - if (!ioaddr) { - if (netif_msg_probe(tp)) - dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); - rc = -EIO; - goto err_out_free_res_4; - } - - /* Unneeded ? Don't mess with Mrs. Murphy. */ - rtl8169_irq_mask_and_ack(ioaddr); - - /* Soft reset the chip. */ - RTL_W8(ChipCmd, CmdReset); - - /* Check that the chip has finished the reset. */ - for (i = 0; i < 100; i++) { - if ((RTL_R8(ChipCmd) & CmdReset) == 0) - break; - msleep_interruptible(1); - } - - /* Identify chip attached to board */ - rtl8169_get_mac_version(tp, ioaddr); - rtl8169_get_phy_version(tp, ioaddr); - - rtl8169_print_mac_version(tp); - rtl8169_print_phy_version(tp); - - for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) { - if (tp->mac_version == rtl_chip_info[i].mac_version) - break; - } - if (i < 0) { - /* Unknown chip: assume array element #0, original RTL-8169 */ - if (netif_msg_probe(tp)) { - dev_printk(KERN_DEBUG, &pdev->dev, - "unknown chip version, assuming %s\n", - rtl_chip_info[0].name); - } - i++; - } - tp->chipset = i; - - RTL_W8(Cfg9346, Cfg9346_Unlock); - RTL_W8(Config1, RTL_R8(Config1) | PMEnable); - RTL_W8(Config5, RTL_R8(Config5) & PMEStatus); - RTL_W8(Cfg9346, Cfg9346_Lock); - - if (RTL_R8(PHYstatus) & TBI_Enable) { - tp->set_speed = rtl8169_set_speed_tbi; - tp->get_settings = rtl8169_gset_tbi; - tp->phy_reset_enable = rtl8169_tbi_reset_enable; - tp->phy_reset_pending = rtl8169_tbi_reset_pending; - tp->link_ok = rtl8169_tbi_link_ok; - - tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */ - } else { - tp->set_speed = rtl8169_set_speed_xmii; - tp->get_settings = rtl8169_gset_xmii; - tp->phy_reset_enable = rtl8169_xmii_reset_enable; - tp->phy_reset_pending = rtl8169_xmii_reset_pending; - tp->link_ok = rtl8169_xmii_link_ok; - - dev->do_ioctl = rtl8169_ioctl; - } - - /* Get MAC address. FIXME: read EEPROM */ - for (i = 0; i < MAC_ADDR_LEN; i++) - dev->dev_addr[i] = RTL_R8(MAC0 + i); - memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); - - dev->open = rtl8169_open; - dev->hard_start_xmit = rtl8169_start_xmit; - dev->get_stats = rtl8169_get_stats; - SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops); - dev->stop = rtl8169_close; - dev->tx_timeout = rtl8169_tx_timeout; - dev->set_multicast_list = rtl_set_rx_mode; - dev->watchdog_timeo = RTL8169_TX_TIMEOUT; - dev->irq = pdev->irq; - dev->base_addr = (unsigned long) ioaddr; - dev->change_mtu = rtl8169_change_mtu; - dev->set_mac_address = rtl_set_mac_address; - -#ifdef CONFIG_R8169_NAPI - dev->poll = rtl8169_poll; - dev->weight = R8169_NAPI_WEIGHT; -#endif - -#ifdef CONFIG_R8169_VLAN - dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; - dev->vlan_rx_register = rtl8169_vlan_rx_register; -#endif - -#ifdef CONFIG_NET_POLL_CONTROLLER - dev->poll_controller = rtl8169_netpoll; -#endif - - tp->intr_mask = 0xffff; - tp->pci_dev = pdev; - tp->mmio_addr = ioaddr; - tp->align = cfg->align; - tp->hw_start = cfg->hw_start; - tp->intr_event = cfg->intr_event; - tp->napi_event = cfg->napi_event; - - init_timer(&tp->timer); - tp->timer.data = (unsigned long) dev; - tp->timer.function = rtl8169_phy_timer; - - spin_lock_init(&tp->lock); - - // offer device to EtherCAT master module - tp->ecdev = ecdev_offer(dev, ec_poll, THIS_MODULE); - - if (!tp->ecdev) { - printk(KERN_INFO "about to register device named %s (%p)...\n", dev->name, dev); - i = register_netdev (dev); - if (i) goto err_out_unmap_5; - } - - pci_set_drvdata(pdev, dev); - - if (netif_msg_probe(tp)) { - u32 xid = RTL_R32(TxConfig) & 0x7cf0f8ff; - - printk(KERN_INFO "%s: %s at 0x%lx, " - "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " - "XID %08x IRQ %d\n", - dev->name, - rtl_chip_info[tp->chipset].name, - dev->base_addr, - dev->dev_addr[0], dev->dev_addr[1], - dev->dev_addr[2], dev->dev_addr[3], - dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq); - } - - rtl8169_init_phy(dev, tp); - - if (tp->ecdev && ecdev_open(tp->ecdev)) { - ecdev_withdraw(tp->ecdev); - goto err_out_unmap_5; - } - -out: - return rc; - -err_out_unmap_5: - iounmap(ioaddr); -err_out_free_res_4: - pci_release_regions(pdev); -err_out_mwi_3: - pci_clear_mwi(pdev); -err_out_disable_2: - pci_disable_device(pdev); -err_out_free_dev_1: - free_netdev(dev); - goto out; -} - -static void __devexit rtl8169_remove_one(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct rtl8169_private *tp = netdev_priv(dev); - - flush_scheduled_work(); - - - if (tp->ecdev) { - ecdev_close(tp->ecdev); - ecdev_withdraw(tp->ecdev); - } - else { - unregister_netdev (dev); - } - - rtl8169_release_board(pdev, dev, tp->mmio_addr); - pci_set_drvdata(pdev, NULL); -} - -static void rtl8169_set_rxbufsize(struct rtl8169_private *tp, - struct net_device *dev) -{ - unsigned int mtu = dev->mtu; - - tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; -} - -static int rtl8169_open(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - struct pci_dev *pdev = tp->pci_dev; - int retval = -ENOMEM; - - - rtl8169_set_rxbufsize(tp, dev); - - /* - * Rx and Tx desscriptors needs 256 bytes alignment. - * pci_alloc_consistent provides more. - */ - tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES, - &tp->TxPhyAddr); - if (!tp->TxDescArray) - goto out; - - tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES, - &tp->RxPhyAddr); - if (!tp->RxDescArray) - goto err_free_tx_0; - - retval = rtl8169_init_ring(dev); - if (retval < 0) - goto err_free_rx_1; - - INIT_DELAYED_WORK(&tp->task, NULL); - - smp_mb(); - - if (!tp->ecdev) { - retval = request_irq(dev->irq, rtl8169_interrupt, IRQF_SHARED, - dev->name, dev); - if (retval < 0) - goto err_release_ring_2; - } - - rtl_hw_start(dev); - - rtl8169_request_timer(dev); - - rtl8169_check_link_status(dev, tp, tp->mmio_addr); -out: - return retval; - -err_release_ring_2: - rtl8169_rx_clear(tp); -err_free_rx_1: - pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, - tp->RxPhyAddr); -err_free_tx_0: - pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, - tp->TxPhyAddr); - goto out; -} - -static void rtl8169_hw_reset(void __iomem *ioaddr) -{ - /* Disable interrupts */ - rtl8169_irq_mask_and_ack(ioaddr); - - /* Reset the chipset */ - RTL_W8(ChipCmd, CmdReset); - - /* PCI commit */ - RTL_R8(ChipCmd); -} - -static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp) -{ - void __iomem *ioaddr = tp->mmio_addr; - u32 cfg = rtl8169_rx_config; - - cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); - RTL_W32(RxConfig, cfg); - - /* Set DMA burst size and Interframe Gap Time */ - RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | - (InterFrameGap << TxInterFrameGapShift)); -} - -static void rtl_hw_start(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned int i; - - /* Soft reset the chip. */ - RTL_W8(ChipCmd, CmdReset); - - /* Check that the chip has finished the reset. */ - for (i = 0; i < 100; i++) { - if ((RTL_R8(ChipCmd) & CmdReset) == 0) - break; - msleep_interruptible(1); - } - - tp->hw_start(dev); - - if(!tp->ecdev) { - netif_start_queue(dev); - } -} - - -void ec_poll(struct net_device *dev) -{ - rtl8169_interrupt(0, dev); -} - -static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp, - void __iomem *ioaddr) -{ - /* - * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh - * register to be written before TxDescAddrLow to work. - * Switching from MMIO to I/O access fixes the issue as well. - */ - RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32); - RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_32BIT_MASK); - RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32); - RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_32BIT_MASK); -} - -static u16 rtl_rw_cpluscmd(void __iomem *ioaddr) -{ - u16 cmd; - - cmd = RTL_R16(CPlusCmd); - RTL_W16(CPlusCmd, cmd); - return cmd; -} - -static void rtl_set_rx_max_size(void __iomem *ioaddr) -{ - /* Low hurts. Let's disable the filtering. */ - RTL_W16(RxMaxSize, 16383); -} - -static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version) -{ - struct { - u32 mac_version; - u32 clk; - u32 val; - } cfg2_info [] = { - { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd - { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff }, - { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe - { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff } - }, *p = cfg2_info; - unsigned int i; - u32 clk; - - clk = RTL_R8(Config2) & PCI_Clock_66MHz; - for (i = 0; i < ARRAY_SIZE(cfg2_info); i++) { - if ((p->mac_version == mac_version) && (p->clk == clk)) { - RTL_W32(0x7c, p->val); - break; - } - } -} - -static void rtl_hw_start_8169(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - struct pci_dev *pdev = tp->pci_dev; - - if (tp->mac_version == RTL_GIGA_MAC_VER_05) { - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW); - pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08); - } - - RTL_W8(Cfg9346, Cfg9346_Unlock); - if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || - (tp->mac_version == RTL_GIGA_MAC_VER_02) || - (tp->mac_version == RTL_GIGA_MAC_VER_03) || - (tp->mac_version == RTL_GIGA_MAC_VER_04)) - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - rtl_set_rx_max_size(ioaddr); - - rtl_set_rx_tx_config_registers(tp); - - tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; - - if ((tp->mac_version == RTL_GIGA_MAC_VER_02) || - (tp->mac_version == RTL_GIGA_MAC_VER_03)) { - dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0. " - "Bit-3 and bit-14 MUST be 1\n"); - tp->cp_cmd |= (1 << 14); - } - - RTL_W16(CPlusCmd, tp->cp_cmd); - - rtl8169_set_magic_reg(ioaddr, tp->mac_version); - - /* - * Undocumented corner. Supposedly: - * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets - */ - RTL_W16(IntrMitigate, 0x0000); - - rtl_set_rx_tx_desc_registers(tp, ioaddr); - - RTL_W8(Cfg9346, Cfg9346_Lock); - - /* Initially a 10 us delay. Turned it into a PCI commit. - FR */ - RTL_R8(IntrMask); - - RTL_W32(RxMissed, 0); - - rtl_set_rx_mode(dev); - - /* no early-rx interrupts */ - RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); - - /* Enable all known interrupts by setting the interrupt mask. */ - if(!tp->ecdev) { - RTL_W16(IntrMask, tp->intr_event); - } - - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); -} - -static void rtl_hw_start_8168(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - struct pci_dev *pdev = tp->pci_dev; - u8 ctl; - - RTL_W8(Cfg9346, Cfg9346_Unlock); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - rtl_set_rx_max_size(ioaddr); - - rtl_set_rx_tx_config_registers(tp); - - tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1; - - RTL_W16(CPlusCmd, tp->cp_cmd); - - /* Tx performance tweak. */ - pci_read_config_byte(pdev, 0x69, &ctl); - ctl = (ctl & ~0x70) | 0x50; - pci_write_config_byte(pdev, 0x69, ctl); - - RTL_W16(IntrMitigate, 0x5151); - - /* Work around for RxFIFO overflow. */ - if (tp->mac_version == RTL_GIGA_MAC_VER_11) { - tp->intr_event |= RxFIFOOver | PCSTimeout; - tp->intr_event &= ~RxOverflow; - } - - rtl_set_rx_tx_desc_registers(tp, ioaddr); - - RTL_W8(Cfg9346, Cfg9346_Lock); - - RTL_R8(IntrMask); - - RTL_W32(RxMissed, 0); - - rtl_set_rx_mode(dev); - - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - - RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); - - if(!tp->ecdev) { - RTL_W16(IntrMask, tp->intr_event); - } -} - -static void rtl_hw_start_8101(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - struct pci_dev *pdev = tp->pci_dev; - - if (tp->mac_version == RTL_GIGA_MAC_VER_13) { - pci_write_config_word(pdev, 0x68, 0x00); - pci_write_config_word(pdev, 0x69, 0x08); - } - - RTL_W8(Cfg9346, Cfg9346_Unlock); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - rtl_set_rx_max_size(ioaddr); - - tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; - - RTL_W16(CPlusCmd, tp->cp_cmd); - - RTL_W16(IntrMitigate, 0x0000); - - rtl_set_rx_tx_desc_registers(tp, ioaddr); - - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - rtl_set_rx_tx_config_registers(tp); - - RTL_W8(Cfg9346, Cfg9346_Lock); - - RTL_R8(IntrMask); - - RTL_W32(RxMissed, 0); - - rtl_set_rx_mode(dev); - - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - - RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000); - - if(!tp->ecdev) { - RTL_W16(IntrMask, tp->intr_event); - } -} - -static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) -{ - struct rtl8169_private *tp = netdev_priv(dev); - int ret = 0; - - if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu) - return -EINVAL; - - dev->mtu = new_mtu; - - if (!netif_running(dev)) - goto out; - - rtl8169_down(dev); - - rtl8169_set_rxbufsize(tp, dev); - - ret = rtl8169_init_ring(dev); - if (ret < 0) - goto out; - - netif_poll_enable(dev); - - rtl_hw_start(dev); - - rtl8169_request_timer(dev); - -out: - return ret; -} - -static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) -{ - desc->addr = 0x0badbadbadbadbadull; - desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask); -} - -static void rtl8169_free_rx_skb(struct rtl8169_private *tp, - struct sk_buff **sk_buff, struct RxDesc *desc) -{ - struct pci_dev *pdev = tp->pci_dev; - - pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz, - PCI_DMA_FROMDEVICE); - if(!tp->ecdev) { - dev_kfree_skb(*sk_buff); - *sk_buff = NULL; - } - rtl8169_make_unusable_by_asic(desc); -} - -static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz) -{ - u32 eor = le32_to_cpu(desc->opts1) & RingEnd; - - desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz); -} - -static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, - u32 rx_buf_sz) -{ - desc->addr = cpu_to_le64(mapping); - wmb(); - rtl8169_mark_to_asic(desc, rx_buf_sz); -} - -static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev, - struct net_device *dev, - struct RxDesc *desc, int rx_buf_sz, - unsigned int align) -{ - struct sk_buff *skb; - dma_addr_t mapping; - unsigned int pad; - - pad = align ? align : NET_IP_ALIGN; - - skb = netdev_alloc_skb(dev, rx_buf_sz + pad); - if (!skb) - goto err_out; - - skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad); - - mapping = pci_map_single(pdev, skb->data, rx_buf_sz, - PCI_DMA_FROMDEVICE); - - rtl8169_map_to_asic(desc, mapping, rx_buf_sz); -out: - return skb; - -err_out: - rtl8169_make_unusable_by_asic(desc); - goto out; -} - -static void rtl8169_rx_clear(struct rtl8169_private *tp) -{ - unsigned int i; - - for (i = 0; i < NUM_RX_DESC; i++) { - if (tp->Rx_skbuff[i]) { - rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i, - tp->RxDescArray + i); - } - } -} - -static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev, - u32 start, u32 end) -{ - u32 cur; - - for (cur = start; end - cur != 0; cur++) { - struct sk_buff *skb; - unsigned int i = cur % NUM_RX_DESC; - - WARN_ON((s32)(end - cur) < 0); - - if (tp->Rx_skbuff[i]) - continue; - - skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev, - tp->RxDescArray + i, - tp->rx_buf_sz, tp->align); - if (!skb) - break; - - tp->Rx_skbuff[i] = skb; - } - return cur - start; -} - -static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc) -{ - desc->opts1 |= cpu_to_le32(RingEnd); -} - -static void rtl8169_init_ring_indexes(struct rtl8169_private *tp) -{ - tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; -} - -static int rtl8169_init_ring(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - - rtl8169_init_ring_indexes(tp); - - memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info)); - memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); - - if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) - goto err_out; - - rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1); - - return 0; - -err_out: - rtl8169_rx_clear(tp); - return -ENOMEM; -} - -static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb, - struct TxDesc *desc) -{ - unsigned int len = tx_skb->len; - - pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); - desc->opts1 = 0x00; - desc->opts2 = 0x00; - desc->addr = 0x00; - tx_skb->len = 0; -} - -static void rtl8169_tx_clear(struct rtl8169_private *tp) -{ - unsigned int i; - - for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) { - unsigned int entry = i % NUM_TX_DESC; - struct ring_info *tx_skb = tp->tx_skb + entry; - unsigned int len = tx_skb->len; - - if (len) { - struct sk_buff *skb = tx_skb->skb; - - rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, - tp->TxDescArray + entry); - if (skb) { - if(!tp->ecdev) { - dev_kfree_skb(skb); - tx_skb->skb = NULL; - } - } - tp->stats.tx_dropped++; - } - } - tp->cur_tx = tp->dirty_tx = 0; -} - -static void rtl8169_schedule_work(struct net_device *dev, work_func_t task) -{ - struct rtl8169_private *tp = netdev_priv(dev); - - PREPARE_DELAYED_WORK(&tp->task, task); - schedule_delayed_work(&tp->task, 4); -} - -static void rtl8169_wait_for_quiescence(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - - synchronize_irq(dev->irq); - - /* Wait for any pending NAPI task to complete */ - netif_poll_disable(dev); - - rtl8169_irq_mask_and_ack(ioaddr); - - netif_poll_enable(dev); -} - -static void rtl8169_reinit_task(struct work_struct *work) -{ - struct rtl8169_private *tp = - container_of(work, struct rtl8169_private, task.work); - struct net_device *dev = tp->dev; - int ret; - - rtnl_lock(); - - if (!netif_running(dev)) - goto out_unlock; - - rtl8169_wait_for_quiescence(dev); - rtl8169_close(dev); - - ret = rtl8169_open(dev); - if (unlikely(ret < 0)) { - if (net_ratelimit() && netif_msg_drv(tp)) { - printk(PFX KERN_ERR "%s: reinit failure (status = %d)." - " Rescheduling.\n", dev->name, ret); - } - rtl8169_schedule_work(dev, rtl8169_reinit_task); - } - -out_unlock: - rtnl_unlock(); -} - -static void rtl8169_reset_task(struct work_struct *work) -{ - struct rtl8169_private *tp = - container_of(work, struct rtl8169_private, task.work); - struct net_device *dev = tp->dev; - - rtnl_lock(); - - if (!netif_running(dev)) - goto out_unlock; - - rtl8169_wait_for_quiescence(dev); - - rtl8169_rx_interrupt(dev, tp, tp->mmio_addr); - rtl8169_tx_clear(tp); - - if (tp->dirty_rx == tp->cur_rx) { - rtl8169_init_ring_indexes(tp); - rtl_hw_start(dev); - netif_wake_queue(dev); - } else { - if (net_ratelimit() && netif_msg_intr(tp)) { - printk(PFX KERN_EMERG "%s: Rx buffers shortage\n", - dev->name); - } - rtl8169_schedule_work(dev, rtl8169_reset_task); - } - -out_unlock: - rtnl_unlock(); -} - -static void rtl8169_tx_timeout(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - - rtl8169_hw_reset(tp->mmio_addr); - - /* Let's wait a bit while any (async) irq lands on */ - rtl8169_schedule_work(dev, rtl8169_reset_task); -} - -static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, - u32 opts1) -{ - struct skb_shared_info *info = skb_shinfo(skb); - unsigned int cur_frag, entry; - struct TxDesc * uninitialized_var(txd); - - entry = tp->cur_tx; - for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) { - skb_frag_t *frag = info->frags + cur_frag; - dma_addr_t mapping; - u32 status, len; - void *addr; - - entry = (entry + 1) % NUM_TX_DESC; - - txd = tp->TxDescArray + entry; - len = frag->size; - addr = ((void *) page_address(frag->page)) + frag->page_offset; - mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE); - - /* anti gcc 2.95.3 bugware (sic) */ - status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); - - txd->opts1 = cpu_to_le32(status); - txd->addr = cpu_to_le64(mapping); - - tp->tx_skb[entry].len = len; - } - - if (cur_frag) { - tp->tx_skb[entry].skb = skb; - txd->opts1 |= cpu_to_le32(LastFrag); - } - - return cur_frag; -} - -static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) -{ - if (dev->features & NETIF_F_TSO) { - u32 mss = skb_shinfo(skb)->gso_size; - - if (mss) - return LargeSend | ((mss & MSSMask) << MSSShift); - } - if (skb->ip_summed == CHECKSUM_PARTIAL) { - const struct iphdr *ip = ip_hdr(skb); - - if (ip->protocol == IPPROTO_TCP) - return IPCS | TCPCS; - else if (ip->protocol == IPPROTO_UDP) - return IPCS | UDPCS; - WARN_ON(1); /* we need a WARN() */ - } - return 0; -} - -static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC; - struct TxDesc *txd = tp->TxDescArray + entry; - void __iomem *ioaddr = tp->mmio_addr; - dma_addr_t mapping; - u32 status, len; - u32 opts1; - int ret = NETDEV_TX_OK; - - if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) { - if (netif_msg_drv(tp)) { - printk(KERN_ERR - "%s: BUG! Tx Ring full when queue awake!\n", - dev->name); - } - goto err_stop; - } - - if (unlikely(le32_to_cpu(txd->opts1) & DescOwn)) - goto err_stop; - - opts1 = DescOwn | rtl8169_tso_csum(skb, dev); - - frags = rtl8169_xmit_frags(tp, skb, opts1); - if (frags) { - len = skb_headlen(skb); - opts1 |= FirstFrag; - } else { - len = skb->len; - - if (unlikely(len < ETH_ZLEN)) { - if (skb_padto(skb, ETH_ZLEN)) - goto err_update_stats; - len = ETH_ZLEN; - } - - opts1 |= FirstFrag | LastFrag; - tp->tx_skb[entry].skb = skb; - } - - mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); - - tp->tx_skb[entry].len = len; - txd->addr = cpu_to_le64(mapping); - txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); - - wmb(); - - /* anti gcc 2.95.3 bugware (sic) */ - status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); - txd->opts1 = cpu_to_le32(status); - - dev->trans_start = jiffies; - - tp->cur_tx += frags + 1; - - smp_wmb(); - - RTL_W8(TxPoll, NPQ); /* set polling bit */ - - if(!tp->ecdev) { - if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) { - netif_stop_queue(dev); - smp_rmb(); - if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS) - netif_wake_queue(dev); - } - } - -out: - return ret; - -err_stop: - if(!tp->ecdev) { - netif_stop_queue(dev); - } - ret = NETDEV_TX_BUSY; -err_update_stats: - tp->stats.tx_dropped++; - goto out; -} - -static void rtl8169_pcierr_interrupt(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - struct pci_dev *pdev = tp->pci_dev; - void __iomem *ioaddr = tp->mmio_addr; - u16 pci_status, pci_cmd; - - pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); - pci_read_config_word(pdev, PCI_STATUS, &pci_status); - - if (netif_msg_intr(tp)) { - printk(KERN_ERR - "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n", - dev->name, pci_cmd, pci_status); - } - - /* - * The recovery sequence below admits a very elaborated explanation: - * - it seems to work; - * - I did not see what else could be done; - * - it makes iop3xx happy. - * - * Feel free to adjust to your needs. - */ - if (pdev->broken_parity_status) - pci_cmd &= ~PCI_COMMAND_PARITY; - else - pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY; - - pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); - - pci_write_config_word(pdev, PCI_STATUS, - pci_status & (PCI_STATUS_DETECTED_PARITY | - PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT | - PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT)); - - /* The infamous DAC f*ckup only happens at boot time */ - if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) { - if (netif_msg_intr(tp)) - printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name); - tp->cp_cmd &= ~PCIDAC; - RTL_W16(CPlusCmd, tp->cp_cmd); - dev->features &= ~NETIF_F_HIGHDMA; - } - - rtl8169_hw_reset(ioaddr); - - rtl8169_schedule_work(dev, rtl8169_reinit_task); -} - -static void rtl8169_tx_interrupt(struct net_device *dev, - struct rtl8169_private *tp, - void __iomem *ioaddr) -{ - unsigned int dirty_tx, tx_left; - - dirty_tx = tp->dirty_tx; - smp_rmb(); - tx_left = tp->cur_tx - dirty_tx; - - while (tx_left > 0) { - unsigned int entry = dirty_tx % NUM_TX_DESC; - struct ring_info *tx_skb = tp->tx_skb + entry; - u32 len = tx_skb->len; - u32 status; - - rmb(); - status = le32_to_cpu(tp->TxDescArray[entry].opts1); - if (status & DescOwn) - break; - - tp->stats.tx_bytes += len; - tp->stats.tx_packets++; - - rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry); - - if (status & LastFrag) { - if(!tp->ecdev) { - dev_kfree_skb_irq(tx_skb->skb); - tx_skb->skb = NULL; - } - } - dirty_tx++; - tx_left--; - } - - if (tp->dirty_tx != dirty_tx) { - tp->dirty_tx = dirty_tx; - smp_wmb(); - - if (!tp->ecdev) { - if (netif_queue_stopped(dev) && - (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) { - netif_wake_queue(dev); - } - } - /* - * 8168 hack: TxPoll requests are lost when the Tx packets are - * too close. Let's kick an extra TxPoll request when a burst - * of start_xmit activity is detected (if it is not detected, - * it is slow enough). -- FR - */ - smp_rmb(); - if (tp->cur_tx != dirty_tx) - RTL_W8(TxPoll, NPQ); - } -} - -static inline int rtl8169_fragmented_frame(u32 status) -{ - return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag); -} - -static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc) -{ - u32 opts1 = le32_to_cpu(desc->opts1); - u32 status = opts1 & RxProtoMask; - - if (((status == RxProtoTCP) && !(opts1 & TCPFail)) || - ((status == RxProtoUDP) && !(opts1 & UDPFail)) || - ((status == RxProtoIP) && !(opts1 & IPFail))) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb->ip_summed = CHECKSUM_NONE; -} - -static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff, - struct rtl8169_private *tp, int pkt_size, - dma_addr_t addr) -{ - struct sk_buff *skb; - bool done = false; - - if (pkt_size >= rx_copybreak) - goto out; - - skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN); - if (!skb) - goto out; - - pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size, - PCI_DMA_FROMDEVICE); - skb_reserve(skb, NET_IP_ALIGN); - skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size); - *sk_buff = skb; - done = true; -out: - return done; -} - -static int rtl8169_rx_interrupt(struct net_device *dev, - struct rtl8169_private *tp, - void __iomem *ioaddr) -{ - unsigned int cur_rx, rx_left; - unsigned int delta, count; - - cur_rx = tp->cur_rx; - rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; - rx_left = rtl8169_rx_quota(rx_left, (u32) dev->quota); - - for (; rx_left > 0; rx_left--, cur_rx++) { - unsigned int entry = cur_rx % NUM_RX_DESC; - struct RxDesc *desc = tp->RxDescArray + entry; - u32 status; - - rmb(); - status = le32_to_cpu(desc->opts1); - - if (status & DescOwn) - break; - if (unlikely(status & RxRES)) { - if(!tp->ecdev) { - if (netif_msg_rx_err(tp)) { - printk(KERN_INFO - "%s: Rx ERROR. status = %08x\n", - dev->name, status); - } - } - tp->stats.rx_errors++; - if (status & (RxRWT | RxRUNT)) - tp->stats.rx_length_errors++; - if (status & RxCRC) - tp->stats.rx_crc_errors++; - if (status & RxFOVF) { - rtl8169_schedule_work(dev, rtl8169_reset_task); - tp->stats.rx_fifo_errors++; - } - rtl8169_mark_to_asic(desc, tp->rx_buf_sz); - } else { - struct sk_buff *skb = tp->Rx_skbuff[entry]; - dma_addr_t addr = le64_to_cpu(desc->addr); - int pkt_size = (status & 0x00001FFF) - 4; - struct pci_dev *pdev = tp->pci_dev; - - /* - * The driver does not support incoming fragmented - * frames. They are seen as a symptom of over-mtu - * sized frames. - */ - if (unlikely(rtl8169_fragmented_frame(status))) { - tp->stats.rx_dropped++; - tp->stats.rx_length_errors++; - rtl8169_mark_to_asic(desc, tp->rx_buf_sz); - continue; - } - - rtl8169_rx_csum(skb, desc); - - if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) { - pci_dma_sync_single_for_device(pdev, addr, - pkt_size, PCI_DMA_FROMDEVICE); - rtl8169_mark_to_asic(desc, tp->rx_buf_sz); - } else { - pci_unmap_single(pdev, addr, pkt_size, - PCI_DMA_FROMDEVICE); - tp->Rx_skbuff[entry] = NULL; - } - - - if (tp->ecdev) { - ecdev_receive(tp->ecdev, skb->data, pkt_size); - dev->last_rx = jiffies; - tp->stats.rx_bytes += pkt_size; - tp->stats.rx_packets++; - } - else { - - skb_put(skb, pkt_size); - skb->protocol = eth_type_trans(skb, dev); - - if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0) - rtl8169_rx_skb(skb); - - dev->last_rx = jiffies; - tp->stats.rx_bytes += pkt_size; - tp->stats.rx_packets++; - } - } - - /* Work around for AMD plateform. */ - if ((desc->opts2 & 0xfffe000) && - (tp->mac_version == RTL_GIGA_MAC_VER_05)) { - desc->opts2 = 0; - cur_rx++; - } - } - - count = cur_rx - tp->cur_rx; - tp->cur_rx = cur_rx; - - delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); - if (!delta && count && netif_msg_intr(tp)) - printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name); - tp->dirty_rx += delta; - - /* - * FIXME: until there is periodic timer to try and refill the ring, - * a temporary shortage may definitely kill the Rx process. - * - disable the asic to try and avoid an overflow and kick it again - * after refill ? - * - how do others driver handle this condition (Uh oh...). - */ - if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp)) - printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name); - - return count; -} - -static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance) -{ - struct net_device *dev = dev_instance; - struct rtl8169_private *tp = netdev_priv(dev); - int boguscnt = max_interrupt_work; - void __iomem *ioaddr = tp->mmio_addr; - int status; - int handled = 0; - - do { - if (tp->ecdev) { - status = RTL_R16(IntrStatus); - } else { - status = RTL_R16(IntrStatus); - - /* hotplug/major error/no more work/shared irq */ - if ((status == 0xFFFF) || !status) - break; - - handled = 1; - - if (unlikely(!netif_running(dev))) { - rtl8169_asic_down(ioaddr); - goto out; - } - status &= tp->intr_mask; - RTL_W16(IntrStatus, - (status & RxFIFOOver) ? (status | RxOverflow) : status); - - if (!(status & tp->intr_event)) - break; - - /* Work around for rx fifo overflow */ - if (unlikely(status & RxFIFOOver) && - (tp->mac_version == RTL_GIGA_MAC_VER_11)) { - netif_stop_queue(dev); - rtl8169_tx_timeout(dev); - break; - } - - if (unlikely(status & SYSErr)) { - rtl8169_pcierr_interrupt(dev); - break; - } - } - - - if (status & LinkChg) - rtl8169_check_link_status(dev, tp, ioaddr); - -#ifdef CONFIG_R8169_NAPI - if (status & tp->napi_event) { - RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event); - tp->intr_mask = ~tp->napi_event; - - if (likely(netif_rx_schedule_prep(dev))) - __netif_rx_schedule(dev); - else if (netif_msg_intr(tp)) { - printk(KERN_INFO "%s: interrupt %04x in poll\n", - dev->name, status); - } - } - break; -#else - /* Rx interrupt */ - if (status & (RxOK | RxOverflow | RxFIFOOver)) - rtl8169_rx_interrupt(dev, tp, ioaddr); - - /* Tx interrupt */ - if (status & (TxOK | TxErr)) - rtl8169_tx_interrupt(dev, tp, ioaddr); -#endif - - boguscnt--; - } while (boguscnt > 0); - - if (!tp->ecdev) { - if (boguscnt <= 0) { - if (netif_msg_intr(tp) && net_ratelimit() ) { - printk(KERN_WARNING - "%s: Too much work at interrupt!\n", dev->name); - } - /* Clear all interrupt sources. */ - RTL_W16(IntrStatus, 0xffff); - } - } -out: - return IRQ_RETVAL(handled); -} - -#ifdef CONFIG_R8169_NAPI -static int rtl8169_poll(struct net_device *dev, int *budget) -{ - unsigned int work_done, work_to_do = min(*budget, dev->quota); - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - - work_done = rtl8169_rx_interrupt(dev, tp, ioaddr); - rtl8169_tx_interrupt(dev, tp, ioaddr); - - *budget -= work_done; - dev->quota -= work_done; - - if (work_done < work_to_do) { - if (!tp->ecdev) { - netif_rx_complete(dev); - } - tp->intr_mask = 0xffff; - /* - * 20040426: the barrier is not strictly required but the - * behavior of the irq handler could be less predictable - * without it. Btw, the lack of flush for the posted pci - * write is safe - FR - */ - smp_wmb(); - if(!tp->ecdev) { - RTL_W16(IntrMask, tp->intr_event); - } - } - - return (work_done >= work_to_do); -} -#endif - -static void rtl8169_down(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned int poll_locked = 0; - unsigned int intrmask; - - rtl8169_delete_timer(dev); - - - if (!tp->ecdev) { - netif_stop_queue(dev); - } - -core_down: - spin_lock_irq(&tp->lock); - - rtl8169_asic_down(ioaddr); - - /* Update the error counts. */ - tp->stats.rx_missed_errors += RTL_R32(RxMissed); - RTL_W32(RxMissed, 0); - - spin_unlock_irq(&tp->lock); - - synchronize_irq(dev->irq); - - if (!poll_locked) { - if (!tp->ecdev) { - netif_poll_disable(dev); - } - poll_locked++; - } - - /* Give a racing hard_start_xmit a few cycles to complete. */ - synchronize_sched(); /* FIXME: should this be synchronize_irq()? */ - - /* - * And now for the 50k$ question: are IRQ disabled or not ? - * - * Two paths lead here: - * 1) dev->close - * -> netif_running() is available to sync the current code and the - * IRQ handler. See rtl8169_interrupt for details. - * 2) dev->change_mtu - * -> rtl8169_poll can not be issued again and re-enable the - * interruptions. Let's simply issue the IRQ down sequence again. - * - * No loop if hotpluged or major error (0xffff). - */ - intrmask = RTL_R16(IntrMask); - if (intrmask && (intrmask != 0xffff)) - goto core_down; - - rtl8169_tx_clear(tp); - - rtl8169_rx_clear(tp); -} - -static int rtl8169_close(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - struct pci_dev *pdev = tp->pci_dev; - - rtl8169_down(dev); - - if (!tp->ecdev) { - free_irq(dev->irq, dev); - netif_poll_enable(dev); - } - - pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, - tp->RxPhyAddr); - pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, - tp->TxPhyAddr); - tp->TxDescArray = NULL; - tp->RxDescArray = NULL; - - return 0; -} - -static void rtl_set_rx_mode(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned long flags; - u32 mc_filter[2]; /* Multicast hash filter */ - int rx_mode; - u32 tmp = 0; - - if (dev->flags & IFF_PROMISC) { - /* Unconditionally log net taps. */ - if (!tp->ecdev) { - if (netif_msg_link(tp)) { - printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", - dev->name); - } - } - 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; - unsigned int i; - - 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; - } - } - - spin_lock_irqsave(&tp->lock, flags); - - tmp = rtl8169_rx_config | rx_mode | - (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); - - if ((tp->mac_version == RTL_GIGA_MAC_VER_11) || - (tp->mac_version == RTL_GIGA_MAC_VER_12) || - (tp->mac_version == RTL_GIGA_MAC_VER_13) || - (tp->mac_version == RTL_GIGA_MAC_VER_14) || - (tp->mac_version == RTL_GIGA_MAC_VER_15)) { - mc_filter[0] = 0xffffffff; - mc_filter[1] = 0xffffffff; - } - - RTL_W32(MAR0 + 0, mc_filter[0]); - RTL_W32(MAR0 + 4, mc_filter[1]); - - RTL_W32(RxConfig, tmp); - - spin_unlock_irqrestore(&tp->lock, flags); -} - -/** - * rtl8169_get_stats - Get rtl8169 read/write statistics - * @dev: The Ethernet Device to get statistics for - * - * Get TX/RX statistics for rtl8169 - */ -static struct net_device_stats *rtl8169_get_stats(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned long flags; - - if (netif_running(dev)) { - spin_lock_irqsave(&tp->lock, flags); - tp->stats.rx_missed_errors += RTL_R32(RxMissed); - RTL_W32(RxMissed, 0); - spin_unlock_irqrestore(&tp->lock, flags); - } - - return &tp->stats; -} - -#ifdef CONFIG_PM - -static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - - if (!netif_running(dev)) - goto out_pci_suspend; - - netif_device_detach(dev); - netif_stop_queue(dev); - - spin_lock_irq(&tp->lock); - - rtl8169_asic_down(ioaddr); - - tp->stats.rx_missed_errors += RTL_R32(RxMissed); - RTL_W32(RxMissed, 0); - - spin_unlock_irq(&tp->lock); - -out_pci_suspend: - pci_save_state(pdev); - pci_enable_wake(pdev, pci_choose_state(pdev, state), tp->wol_enabled); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); - - return 0; -} - -static int rtl8169_resume(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - pci_enable_wake(pdev, PCI_D0, 0); - - if (!netif_running(dev)) - goto out; - - netif_device_attach(dev); - - rtl8169_schedule_work(dev, rtl8169_reset_task); -out: - return 0; -} - -#endif /* CONFIG_PM */ - -static struct pci_driver rtl8169_pci_driver = { - .name = MODULENAME, - .id_table = rtl8169_pci_tbl, - .probe = rtl8169_init_one, - .remove = __devexit_p(rtl8169_remove_one), -#ifdef CONFIG_PM - .suspend = rtl8169_suspend, - .resume = rtl8169_resume, -#endif -}; - -static int __init rtl8169_init_module(void) -{ - return pci_register_driver(&rtl8169_pci_driver); -} - -static void __exit rtl8169_cleanup_module(void) -{ - pci_unregister_driver(&rtl8169_pci_driver); -} - -module_init(rtl8169_init_module); -module_exit(rtl8169_cleanup_module);