--- 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 <shuchen@realtek.com.tw>
- * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
- * Copyright (c) a lot of people too. Please respect their work.
- *
- * See MAINTAINERS file for support contact information.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/pci.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/if_vlan.h>
-#include <linux/crc32.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/init.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#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 <netdev@vger.kernel.org>");
-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);