linux/drivers/net/r8169.c
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   1/*
   2 * r8169.c: RealTek 8169/8168/8101 ethernet driver.
   3 *
   4 * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
   5 * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
   6 * Copyright (c) a lot of people too. Please respect their work.
   7 *
   8 * See MAINTAINERS file for support contact information.
   9 */
  10
  11#include <linux/module.h>
  12#include <linux/moduleparam.h>
  13#include <linux/pci.h>
  14#include <linux/netdevice.h>
  15#include <linux/etherdevice.h>
  16#include <linux/delay.h>
  17#include <linux/ethtool.h>
  18#include <linux/mii.h>
  19#include <linux/if_vlan.h>
  20#include <linux/crc32.h>
  21#include <linux/in.h>
  22#include <linux/ip.h>
  23#include <linux/tcp.h>
  24#include <linux/init.h>
  25#include <linux/dma-mapping.h>
  26
  27#include <asm/system.h>
  28#include <asm/io.h>
  29#include <asm/irq.h>
  30
  31#define RTL8169_VERSION "2.3LK-NAPI"
  32#define MODULENAME "r8169"
  33#define PFX MODULENAME ": "
  34
  35#ifdef RTL8169_DEBUG
  36#define assert(expr) \
  37        if (!(expr)) {                                  \
  38                printk( "Assertion failed! %s,%s,%s,line=%d\n", \
  39                #expr,__FILE__,__func__,__LINE__);              \
  40        }
  41#define dprintk(fmt, args...) \
  42        do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
  43#else
  44#define assert(expr) do {} while (0)
  45#define dprintk(fmt, args...)   do {} while (0)
  46#endif /* RTL8169_DEBUG */
  47
  48#define R8169_MSG_DEFAULT \
  49        (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
  50
  51#define TX_BUFFS_AVAIL(tp) \
  52        (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
  53
  54/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
  55   The RTL chips use a 64 element hash table based on the Ethernet CRC. */
  56static const int multicast_filter_limit = 32;
  57
  58/* MAC address length */
  59#define MAC_ADDR_LEN    6
  60
  61#define MAX_READ_REQUEST_SHIFT  12
  62#define RX_FIFO_THRESH  7       /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
  63#define RX_DMA_BURST    6       /* Maximum PCI burst, '6' is 1024 */
  64#define TX_DMA_BURST    6       /* Maximum PCI burst, '6' is 1024 */
  65#define EarlyTxThld     0x3F    /* 0x3F means NO early transmit */
  66#define SafeMtu         0x1c20  /* ... actually life sucks beyond ~7k */
  67#define InterFrameGap   0x03    /* 3 means InterFrameGap = the shortest one */
  68
  69#define R8169_REGS_SIZE         256
  70#define R8169_NAPI_WEIGHT       64
  71#define NUM_TX_DESC     64      /* Number of Tx descriptor registers */
  72#define NUM_RX_DESC     256     /* Number of Rx descriptor registers */
  73#define RX_BUF_SIZE     1536    /* Rx Buffer size */
  74#define R8169_TX_RING_BYTES     (NUM_TX_DESC * sizeof(struct TxDesc))
  75#define R8169_RX_RING_BYTES     (NUM_RX_DESC * sizeof(struct RxDesc))
  76
  77#define RTL8169_TX_TIMEOUT      (6*HZ)
  78#define RTL8169_PHY_TIMEOUT     (10*HZ)
  79
  80#define RTL_EEPROM_SIG          cpu_to_le32(0x8129)
  81#define RTL_EEPROM_SIG_MASK     cpu_to_le32(0xffff)
  82#define RTL_EEPROM_SIG_ADDR     0x0000
  83
  84/* write/read MMIO register */
  85#define RTL_W8(reg, val8)       writeb ((val8), ioaddr + (reg))
  86#define RTL_W16(reg, val16)     writew ((val16), ioaddr + (reg))
  87#define RTL_W32(reg, val32)     writel ((val32), ioaddr + (reg))
  88#define RTL_R8(reg)             readb (ioaddr + (reg))
  89#define RTL_R16(reg)            readw (ioaddr + (reg))
  90#define RTL_R32(reg)            ((unsigned long) readl (ioaddr + (reg)))
  91
  92enum mac_version {
  93        RTL_GIGA_MAC_NONE   = 0x00,
  94        RTL_GIGA_MAC_VER_01 = 0x01, // 8169
  95        RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
  96        RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
  97        RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
  98        RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
  99        RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
 100        RTL_GIGA_MAC_VER_07 = 0x07, // 8102e
 101        RTL_GIGA_MAC_VER_08 = 0x08, // 8102e
 102        RTL_GIGA_MAC_VER_09 = 0x09, // 8102e
 103        RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e
 104        RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
 105        RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
 106        RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
 107        RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
 108        RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
 109        RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
 110        RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
 111        RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
 112        RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
 113        RTL_GIGA_MAC_VER_20 = 0x14, // 8168C
 114        RTL_GIGA_MAC_VER_21 = 0x15, // 8168C
 115        RTL_GIGA_MAC_VER_22 = 0x16, // 8168C
 116        RTL_GIGA_MAC_VER_23 = 0x17, // 8168CP
 117        RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP
 118        RTL_GIGA_MAC_VER_25 = 0x19, // 8168D
 119        RTL_GIGA_MAC_VER_26 = 0x1a, // 8168D
 120        RTL_GIGA_MAC_VER_27 = 0x1b  // 8168DP
 121};
 122
 123#define _R(NAME,MAC,MASK) \
 124        { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
 125
 126static const struct {
 127        const char *name;
 128        u8 mac_version;
 129        u32 RxConfigMask;       /* Clears the bits supported by this chip */
 130} rtl_chip_info[] = {
 131        _R("RTL8169",           RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
 132        _R("RTL8169s",          RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
 133        _R("RTL8110s",          RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
 134        _R("RTL8169sb/8110sb",  RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
 135        _R("RTL8169sc/8110sc",  RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
 136        _R("RTL8169sc/8110sc",  RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
 137        _R("RTL8102e",          RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E
 138        _R("RTL8102e",          RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E
 139        _R("RTL8102e",          RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E
 140        _R("RTL8101e",          RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E
 141        _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
 142        _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
 143        _R("RTL8101e",          RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
 144        _R("RTL8100e",          RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
 145        _R("RTL8100e",          RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
 146        _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
 147        _R("RTL8101e",          RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
 148        _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
 149        _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
 150        _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_20, 0xff7e1880), // PCI-E
 151        _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_21, 0xff7e1880), // PCI-E
 152        _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_22, 0xff7e1880), // PCI-E
 153        _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_23, 0xff7e1880), // PCI-E
 154        _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E
 155        _R("RTL8168d/8111d",    RTL_GIGA_MAC_VER_25, 0xff7e1880), // PCI-E
 156        _R("RTL8168d/8111d",    RTL_GIGA_MAC_VER_26, 0xff7e1880), // PCI-E
 157        _R("RTL8168dp/8111dp",  RTL_GIGA_MAC_VER_27, 0xff7e1880)  // PCI-E
 158};
 159#undef _R
 160
 161enum cfg_version {
 162        RTL_CFG_0 = 0x00,
 163        RTL_CFG_1,
 164        RTL_CFG_2
 165};
 166
 167static void rtl_hw_start_8169(struct net_device *);
 168static void rtl_hw_start_8168(struct net_device *);
 169static void rtl_hw_start_8101(struct net_device *);
 170
 171static struct pci_device_id rtl8169_pci_tbl[] = {
 172        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8129), 0, 0, RTL_CFG_0 },
 173        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8136), 0, 0, RTL_CFG_2 },
 174        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8167), 0, 0, RTL_CFG_0 },
 175        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8168), 0, 0, RTL_CFG_1 },
 176        { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8169), 0, 0, RTL_CFG_0 },
 177        { PCI_DEVICE(PCI_VENDOR_ID_DLINK,       0x4300), 0, 0, RTL_CFG_0 },
 178        { PCI_DEVICE(PCI_VENDOR_ID_AT,          0xc107), 0, 0, RTL_CFG_0 },
 179        { PCI_DEVICE(0x16ec,                    0x0116), 0, 0, RTL_CFG_0 },
 180        { PCI_VENDOR_ID_LINKSYS,                0x1032,
 181                PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
 182        { 0x0001,                               0x8168,
 183                PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
 184        {0,},
 185};
 186
 187MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
 188
 189static int rx_copybreak = 200;
 190static int use_dac;
 191static struct {
 192        u32 msg_enable;
 193} debug = { -1 };
 194
 195enum rtl_registers {
 196        MAC0            = 0,    /* Ethernet hardware address. */
 197        MAC4            = 4,
 198        MAR0            = 8,    /* Multicast filter. */
 199        CounterAddrLow          = 0x10,
 200        CounterAddrHigh         = 0x14,
 201        TxDescStartAddrLow      = 0x20,
 202        TxDescStartAddrHigh     = 0x24,
 203        TxHDescStartAddrLow     = 0x28,
 204        TxHDescStartAddrHigh    = 0x2c,
 205        FLASH           = 0x30,
 206        ERSR            = 0x36,
 207        ChipCmd         = 0x37,
 208        TxPoll          = 0x38,
 209        IntrMask        = 0x3c,
 210        IntrStatus      = 0x3e,
 211        TxConfig        = 0x40,
 212        RxConfig        = 0x44,
 213        RxMissed        = 0x4c,
 214        Cfg9346         = 0x50,
 215        Config0         = 0x51,
 216        Config1         = 0x52,
 217        Config2         = 0x53,
 218        Config3         = 0x54,
 219        Config4         = 0x55,
 220        Config5         = 0x56,
 221        MultiIntr       = 0x5c,
 222        PHYAR           = 0x60,
 223        PHYstatus       = 0x6c,
 224        RxMaxSize       = 0xda,
 225        CPlusCmd        = 0xe0,
 226        IntrMitigate    = 0xe2,
 227        RxDescAddrLow   = 0xe4,
 228        RxDescAddrHigh  = 0xe8,
 229        EarlyTxThres    = 0xec,
 230        FuncEvent       = 0xf0,
 231        FuncEventMask   = 0xf4,
 232        FuncPresetState = 0xf8,
 233        FuncForceEvent  = 0xfc,
 234};
 235
 236enum rtl8110_registers {
 237        TBICSR                  = 0x64,
 238        TBI_ANAR                = 0x68,
 239        TBI_LPAR                = 0x6a,
 240};
 241
 242enum rtl8168_8101_registers {
 243        CSIDR                   = 0x64,
 244        CSIAR                   = 0x68,
 245#define CSIAR_FLAG                      0x80000000
 246#define CSIAR_WRITE_CMD                 0x80000000
 247#define CSIAR_BYTE_ENABLE               0x0f
 248#define CSIAR_BYTE_ENABLE_SHIFT         12
 249#define CSIAR_ADDR_MASK                 0x0fff
 250
 251        EPHYAR                  = 0x80,
 252#define EPHYAR_FLAG                     0x80000000
 253#define EPHYAR_WRITE_CMD                0x80000000
 254#define EPHYAR_REG_MASK                 0x1f
 255#define EPHYAR_REG_SHIFT                16
 256#define EPHYAR_DATA_MASK                0xffff
 257        DBG_REG                 = 0xd1,
 258#define FIX_NAK_1                       (1 << 4)
 259#define FIX_NAK_2                       (1 << 3)
 260        EFUSEAR                 = 0xdc,
 261#define EFUSEAR_FLAG                    0x80000000
 262#define EFUSEAR_WRITE_CMD               0x80000000
 263#define EFUSEAR_READ_CMD                0x00000000
 264#define EFUSEAR_REG_MASK                0x03ff
 265#define EFUSEAR_REG_SHIFT               8
 266#define EFUSEAR_DATA_MASK               0xff
 267};
 268
 269enum rtl_register_content {
 270        /* InterruptStatusBits */
 271        SYSErr          = 0x8000,
 272        PCSTimeout      = 0x4000,
 273        SWInt           = 0x0100,
 274        TxDescUnavail   = 0x0080,
 275        RxFIFOOver      = 0x0040,
 276        LinkChg         = 0x0020,
 277        RxOverflow      = 0x0010,
 278        TxErr           = 0x0008,
 279        TxOK            = 0x0004,
 280        RxErr           = 0x0002,
 281        RxOK            = 0x0001,
 282
 283        /* RxStatusDesc */
 284        RxFOVF  = (1 << 23),
 285        RxRWT   = (1 << 22),
 286        RxRES   = (1 << 21),
 287        RxRUNT  = (1 << 20),
 288        RxCRC   = (1 << 19),
 289
 290        /* ChipCmdBits */
 291        CmdReset        = 0x10,
 292        CmdRxEnb        = 0x08,
 293        CmdTxEnb        = 0x04,
 294        RxBufEmpty      = 0x01,
 295
 296        /* TXPoll register p.5 */
 297        HPQ             = 0x80,         /* Poll cmd on the high prio queue */
 298        NPQ             = 0x40,         /* Poll cmd on the low prio queue */
 299        FSWInt          = 0x01,         /* Forced software interrupt */
 300
 301        /* Cfg9346Bits */
 302        Cfg9346_Lock    = 0x00,
 303        Cfg9346_Unlock  = 0xc0,
 304
 305        /* rx_mode_bits */
 306        AcceptErr       = 0x20,
 307        AcceptRunt      = 0x10,
 308        AcceptBroadcast = 0x08,
 309        AcceptMulticast = 0x04,
 310        AcceptMyPhys    = 0x02,
 311        AcceptAllPhys   = 0x01,
 312
 313        /* RxConfigBits */
 314        RxCfgFIFOShift  = 13,
 315        RxCfgDMAShift   =  8,
 316
 317        /* TxConfigBits */
 318        TxInterFrameGapShift = 24,
 319        TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
 320
 321        /* Config1 register p.24 */
 322        LEDS1           = (1 << 7),
 323        LEDS0           = (1 << 6),
 324        MSIEnable       = (1 << 5),     /* Enable Message Signaled Interrupt */
 325        Speed_down      = (1 << 4),
 326        MEMMAP          = (1 << 3),
 327        IOMAP           = (1 << 2),
 328        VPD             = (1 << 1),
 329        PMEnable        = (1 << 0),     /* Power Management Enable */
 330
 331        /* Config2 register p. 25 */
 332        PCI_Clock_66MHz = 0x01,
 333        PCI_Clock_33MHz = 0x00,
 334
 335        /* Config3 register p.25 */
 336        MagicPacket     = (1 << 5),     /* Wake up when receives a Magic Packet */
 337        LinkUp          = (1 << 4),     /* Wake up when the cable connection is re-established */
 338        Beacon_en       = (1 << 0),     /* 8168 only. Reserved in the 8168b */
 339
 340        /* Config5 register p.27 */
 341        BWF             = (1 << 6),     /* Accept Broadcast wakeup frame */
 342        MWF             = (1 << 5),     /* Accept Multicast wakeup frame */
 343        UWF             = (1 << 4),     /* Accept Unicast wakeup frame */
 344        LanWake         = (1 << 1),     /* LanWake enable/disable */
 345        PMEStatus       = (1 << 0),     /* PME status can be reset by PCI RST# */
 346
 347        /* TBICSR p.28 */
 348        TBIReset        = 0x80000000,
 349        TBILoopback     = 0x40000000,
 350        TBINwEnable     = 0x20000000,
 351        TBINwRestart    = 0x10000000,
 352        TBILinkOk       = 0x02000000,
 353        TBINwComplete   = 0x01000000,
 354
 355        /* CPlusCmd p.31 */
 356        EnableBist      = (1 << 15),    // 8168 8101
 357        Mac_dbgo_oe     = (1 << 14),    // 8168 8101
 358        Normal_mode     = (1 << 13),    // unused
 359        Force_half_dup  = (1 << 12),    // 8168 8101
 360        Force_rxflow_en = (1 << 11),    // 8168 8101
 361        Force_txflow_en = (1 << 10),    // 8168 8101
 362        Cxpl_dbg_sel    = (1 << 9),     // 8168 8101
 363        ASF             = (1 << 8),     // 8168 8101
 364        PktCntrDisable  = (1 << 7),     // 8168 8101
 365        Mac_dbgo_sel    = 0x001c,       // 8168
 366        RxVlan          = (1 << 6),
 367        RxChkSum        = (1 << 5),
 368        PCIDAC          = (1 << 4),
 369        PCIMulRW        = (1 << 3),
 370        INTT_0          = 0x0000,       // 8168
 371        INTT_1          = 0x0001,       // 8168
 372        INTT_2          = 0x0002,       // 8168
 373        INTT_3          = 0x0003,       // 8168
 374
 375        /* rtl8169_PHYstatus */
 376        TBI_Enable      = 0x80,
 377        TxFlowCtrl      = 0x40,
 378        RxFlowCtrl      = 0x20,
 379        _1000bpsF       = 0x10,
 380        _100bps         = 0x08,
 381        _10bps          = 0x04,
 382        LinkStatus      = 0x02,
 383        FullDup         = 0x01,
 384
 385        /* _TBICSRBit */
 386        TBILinkOK       = 0x02000000,
 387
 388        /* DumpCounterCommand */
 389        CounterDump     = 0x8,
 390};
 391
 392enum desc_status_bit {
 393        DescOwn         = (1 << 31), /* Descriptor is owned by NIC */
 394        RingEnd         = (1 << 30), /* End of descriptor ring */
 395        FirstFrag       = (1 << 29), /* First segment of a packet */
 396        LastFrag        = (1 << 28), /* Final segment of a packet */
 397
 398        /* Tx private */
 399        LargeSend       = (1 << 27), /* TCP Large Send Offload (TSO) */
 400        MSSShift        = 16,        /* MSS value position */
 401        MSSMask         = 0xfff,     /* MSS value + LargeSend bit: 12 bits */
 402        IPCS            = (1 << 18), /* Calculate IP checksum */
 403        UDPCS           = (1 << 17), /* Calculate UDP/IP checksum */
 404        TCPCS           = (1 << 16), /* Calculate TCP/IP checksum */
 405        TxVlanTag       = (1 << 17), /* Add VLAN tag */
 406
 407        /* Rx private */
 408        PID1            = (1 << 18), /* Protocol ID bit 1/2 */
 409        PID0            = (1 << 17), /* Protocol ID bit 2/2 */
 410
 411#define RxProtoUDP      (PID1)
 412#define RxProtoTCP      (PID0)
 413#define RxProtoIP       (PID1 | PID0)
 414#define RxProtoMask     RxProtoIP
 415
 416        IPFail          = (1 << 16), /* IP checksum failed */
 417        UDPFail         = (1 << 15), /* UDP/IP checksum failed */
 418        TCPFail         = (1 << 14), /* TCP/IP checksum failed */
 419        RxVlanTag       = (1 << 16), /* VLAN tag available */
 420};
 421
 422#define RsvdMask        0x3fffc000
 423
 424struct TxDesc {
 425        __le32 opts1;
 426        __le32 opts2;
 427        __le64 addr;
 428};
 429
 430struct RxDesc {
 431        __le32 opts1;
 432        __le32 opts2;
 433        __le64 addr;
 434};
 435
 436struct ring_info {
 437        struct sk_buff  *skb;
 438        u32             len;
 439        u8              __pad[sizeof(void *) - sizeof(u32)];
 440};
 441
 442enum features {
 443        RTL_FEATURE_WOL         = (1 << 0),
 444        RTL_FEATURE_MSI         = (1 << 1),
 445        RTL_FEATURE_GMII        = (1 << 2),
 446};
 447
 448struct rtl8169_counters {
 449        __le64  tx_packets;
 450        __le64  rx_packets;
 451        __le64  tx_errors;
 452        __le32  rx_errors;
 453        __le16  rx_missed;
 454        __le16  align_errors;
 455        __le32  tx_one_collision;
 456        __le32  tx_multi_collision;
 457        __le64  rx_unicast;
 458        __le64  rx_broadcast;
 459        __le32  rx_multicast;
 460        __le16  tx_aborted;
 461        __le16  tx_underun;
 462};
 463
 464struct rtl8169_private {
 465        void __iomem *mmio_addr;        /* memory map physical address */
 466        struct pci_dev *pci_dev;        /* Index of PCI device */
 467        struct net_device *dev;
 468        struct napi_struct napi;
 469        spinlock_t lock;                /* spin lock flag */
 470        u32 msg_enable;
 471        int chipset;
 472        int mac_version;
 473        u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
 474        u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
 475        u32 dirty_rx;
 476        u32 dirty_tx;
 477        struct TxDesc *TxDescArray;     /* 256-aligned Tx descriptor ring */
 478        struct RxDesc *RxDescArray;     /* 256-aligned Rx descriptor ring */
 479        dma_addr_t TxPhyAddr;
 480        dma_addr_t RxPhyAddr;
 481        struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */
 482        struct ring_info tx_skb[NUM_TX_DESC];   /* Tx data buffers */
 483        unsigned align;
 484        unsigned rx_buf_sz;
 485        struct timer_list timer;
 486        u16 cp_cmd;
 487        u16 intr_event;
 488        u16 napi_event;
 489        u16 intr_mask;
 490        int phy_1000_ctrl_reg;
 491#ifdef CONFIG_R8169_VLAN
 492        struct vlan_group *vlgrp;
 493#endif
 494        int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
 495        int (*get_settings)(struct net_device *, struct ethtool_cmd *);
 496        void (*phy_reset_enable)(void __iomem *);
 497        void (*hw_start)(struct net_device *);
 498        unsigned int (*phy_reset_pending)(void __iomem *);
 499        unsigned int (*link_ok)(void __iomem *);
 500        int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);
 501        int pcie_cap;
 502        struct delayed_work task;
 503        unsigned features;
 504
 505        struct mii_if_info mii;
 506        struct rtl8169_counters counters;
 507};
 508
 509MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
 510MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
 511module_param(rx_copybreak, int, 0);
 512MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
 513module_param(use_dac, int, 0);
 514MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
 515module_param_named(debug, debug.msg_enable, int, 0);
 516MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
 517MODULE_LICENSE("GPL");
 518MODULE_VERSION(RTL8169_VERSION);
 519
 520static int rtl8169_open(struct net_device *dev);
 521static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 522                                      struct net_device *dev);
 523static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
 524static int rtl8169_init_ring(struct net_device *dev);
 525static void rtl_hw_start(struct net_device *dev);
 526static int rtl8169_close(struct net_device *dev);
 527static void rtl_set_rx_mode(struct net_device *dev);
 528static void rtl8169_tx_timeout(struct net_device *dev);
 529static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
 530static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
 531                                void __iomem *, u32 budget);
 532static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
 533static void rtl8169_down(struct net_device *dev);
 534static void rtl8169_rx_clear(struct rtl8169_private *tp);
 535static int rtl8169_poll(struct napi_struct *napi, int budget);
 536
 537static const unsigned int rtl8169_rx_config =
 538        (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
 539
 540static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 541{
 542        int i;
 543
 544        RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
 545
 546        for (i = 20; i > 0; i--) {
 547                /*
 548                 * Check if the RTL8169 has completed writing to the specified
 549                 * MII register.
 550                 */
 551                if (!(RTL_R32(PHYAR) & 0x80000000))
 552                        break;
 553                udelay(25);
 554        }
 555}
 556
 557static int mdio_read(void __iomem *ioaddr, int reg_addr)
 558{
 559        int i, value = -1;
 560
 561        RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
 562
 563        for (i = 20; i > 0; i--) {
 564                /*
 565                 * Check if the RTL8169 has completed retrieving data from
 566                 * the specified MII register.
 567                 */
 568                if (RTL_R32(PHYAR) & 0x80000000) {
 569                        value = RTL_R32(PHYAR) & 0xffff;
 570                        break;
 571                }
 572                udelay(25);
 573        }
 574        return value;
 575}
 576
 577static void mdio_patch(void __iomem *ioaddr, int reg_addr, int value)
 578{
 579        mdio_write(ioaddr, reg_addr, mdio_read(ioaddr, reg_addr) | value);
 580}
 581
 582static void mdio_plus_minus(void __iomem *ioaddr, int reg_addr, int p, int m)
 583{
 584        int val;
 585
 586        val = mdio_read(ioaddr, reg_addr);
 587        mdio_write(ioaddr, reg_addr, (val | p) & ~m);
 588}
 589
 590static void rtl_mdio_write(struct net_device *dev, int phy_id, int location,
 591                           int val)
 592{
 593        struct rtl8169_private *tp = netdev_priv(dev);
 594        void __iomem *ioaddr = tp->mmio_addr;
 595
 596        mdio_write(ioaddr, location, val);
 597}
 598
 599static int rtl_mdio_read(struct net_device *dev, int phy_id, int location)
 600{
 601        struct rtl8169_private *tp = netdev_priv(dev);
 602        void __iomem *ioaddr = tp->mmio_addr;
 603
 604        return mdio_read(ioaddr, location);
 605}
 606
 607static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value)
 608{
 609        unsigned int i;
 610
 611        RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
 612                (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
 613
 614        for (i = 0; i < 100; i++) {
 615                if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG))
 616                        break;
 617                udelay(10);
 618        }
 619}
 620
 621static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr)
 622{
 623        u16 value = 0xffff;
 624        unsigned int i;
 625
 626        RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
 627
 628        for (i = 0; i < 100; i++) {
 629                if (RTL_R32(EPHYAR) & EPHYAR_FLAG) {
 630                        value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK;
 631                        break;
 632                }
 633                udelay(10);
 634        }
 635
 636        return value;
 637}
 638
 639static void rtl_csi_write(void __iomem *ioaddr, int addr, int value)
 640{
 641        unsigned int i;
 642
 643        RTL_W32(CSIDR, value);
 644        RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
 645                CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
 646
 647        for (i = 0; i < 100; i++) {
 648                if (!(RTL_R32(CSIAR) & CSIAR_FLAG))
 649                        break;
 650                udelay(10);
 651        }
 652}
 653
 654static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
 655{
 656        u32 value = ~0x00;
 657        unsigned int i;
 658
 659        RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) |
 660                CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
 661
 662        for (i = 0; i < 100; i++) {
 663                if (RTL_R32(CSIAR) & CSIAR_FLAG) {
 664                        value = RTL_R32(CSIDR);
 665                        break;
 666                }
 667                udelay(10);
 668        }
 669
 670        return value;
 671}
 672
 673static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
 674{
 675        u8 value = 0xff;
 676        unsigned int i;
 677
 678        RTL_W32(EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
 679
 680        for (i = 0; i < 300; i++) {
 681                if (RTL_R32(EFUSEAR) & EFUSEAR_FLAG) {
 682                        value = RTL_R32(EFUSEAR) & EFUSEAR_DATA_MASK;
 683                        break;
 684                }
 685                udelay(100);
 686        }
 687
 688        return value;
 689}
 690
 691static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
 692{
 693        RTL_W16(IntrMask, 0x0000);
 694
 695        RTL_W16(IntrStatus, 0xffff);
 696}
 697
 698static void rtl8169_asic_down(void __iomem *ioaddr)
 699{
 700        RTL_W8(ChipCmd, 0x00);
 701        rtl8169_irq_mask_and_ack(ioaddr);
 702        RTL_R16(CPlusCmd);
 703}
 704
 705static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr)
 706{
 707        return RTL_R32(TBICSR) & TBIReset;
 708}
 709
 710static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr)
 711{
 712        return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET;
 713}
 714
 715static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
 716{
 717        return RTL_R32(TBICSR) & TBILinkOk;
 718}
 719
 720static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
 721{
 722        return RTL_R8(PHYstatus) & LinkStatus;
 723}
 724
 725static void rtl8169_tbi_reset_enable(void __iomem *ioaddr)
 726{
 727        RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
 728}
 729
 730static void rtl8169_xmii_reset_enable(void __iomem *ioaddr)
 731{
 732        unsigned int val;
 733
 734        val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET;
 735        mdio_write(ioaddr, MII_BMCR, val & 0xffff);
 736}
 737
 738static void rtl8169_check_link_status(struct net_device *dev,
 739                                      struct rtl8169_private *tp,
 740                                      void __iomem *ioaddr)
 741{
 742        unsigned long flags;
 743
 744        spin_lock_irqsave(&tp->lock, flags);
 745        if (tp->link_ok(ioaddr)) {
 746                netif_carrier_on(dev);
 747                if (netif_msg_ifup(tp))
 748                        printk(KERN_INFO PFX "%s: link up\n", dev->name);
 749        } else {
 750                if (netif_msg_ifdown(tp))
 751                        printk(KERN_INFO PFX "%s: link down\n", dev->name);
 752                netif_carrier_off(dev);
 753        }
 754        spin_unlock_irqrestore(&tp->lock, flags);
 755}
 756
 757static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 758{
 759        struct rtl8169_private *tp = netdev_priv(dev);
 760        void __iomem *ioaddr = tp->mmio_addr;
 761        u8 options;
 762
 763        wol->wolopts = 0;
 764
 765#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
 766        wol->supported = WAKE_ANY;
 767
 768        spin_lock_irq(&tp->lock);
 769
 770        options = RTL_R8(Config1);
 771        if (!(options & PMEnable))
 772                goto out_unlock;
 773
 774        options = RTL_R8(Config3);
 775        if (options & LinkUp)
 776                wol->wolopts |= WAKE_PHY;
 777        if (options & MagicPacket)
 778                wol->wolopts |= WAKE_MAGIC;
 779
 780        options = RTL_R8(Config5);
 781        if (options & UWF)
 782                wol->wolopts |= WAKE_UCAST;
 783        if (options & BWF)
 784                wol->wolopts |= WAKE_BCAST;
 785        if (options & MWF)
 786                wol->wolopts |= WAKE_MCAST;
 787
 788out_unlock:
 789        spin_unlock_irq(&tp->lock);
 790}
 791
 792static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 793{
 794        struct rtl8169_private *tp = netdev_priv(dev);
 795        void __iomem *ioaddr = tp->mmio_addr;
 796        unsigned int i;
 797        static struct {
 798                u32 opt;
 799                u16 reg;
 800                u8  mask;
 801        } cfg[] = {
 802                { WAKE_ANY,   Config1, PMEnable },
 803                { WAKE_PHY,   Config3, LinkUp },
 804                { WAKE_MAGIC, Config3, MagicPacket },
 805                { WAKE_UCAST, Config5, UWF },
 806                { WAKE_BCAST, Config5, BWF },
 807                { WAKE_MCAST, Config5, MWF },
 808                { WAKE_ANY,   Config5, LanWake }
 809        };
 810
 811        spin_lock_irq(&tp->lock);
 812
 813        RTL_W8(Cfg9346, Cfg9346_Unlock);
 814
 815        for (i = 0; i < ARRAY_SIZE(cfg); i++) {
 816                u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
 817                if (wol->wolopts & cfg[i].opt)
 818                        options |= cfg[i].mask;
 819                RTL_W8(cfg[i].reg, options);
 820        }
 821
 822        RTL_W8(Cfg9346, Cfg9346_Lock);
 823
 824        if (wol->wolopts)
 825                tp->features |= RTL_FEATURE_WOL;
 826        else
 827                tp->features &= ~RTL_FEATURE_WOL;
 828        device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
 829
 830        spin_unlock_irq(&tp->lock);
 831
 832        return 0;
 833}
 834
 835static void rtl8169_get_drvinfo(struct net_device *dev,
 836                                struct ethtool_drvinfo *info)
 837{
 838        struct rtl8169_private *tp = netdev_priv(dev);
 839
 840        strcpy(info->driver, MODULENAME);
 841        strcpy(info->version, RTL8169_VERSION);
 842        strcpy(info->bus_info, pci_name(tp->pci_dev));
 843}
 844
 845static int rtl8169_get_regs_len(struct net_device *dev)
 846{
 847        return R8169_REGS_SIZE;
 848}
 849
 850static int rtl8169_set_speed_tbi(struct net_device *dev,
 851                                 u8 autoneg, u16 speed, u8 duplex)
 852{
 853        struct rtl8169_private *tp = netdev_priv(dev);
 854        void __iomem *ioaddr = tp->mmio_addr;
 855        int ret = 0;
 856        u32 reg;
 857
 858        reg = RTL_R32(TBICSR);
 859        if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
 860            (duplex == DUPLEX_FULL)) {
 861                RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
 862        } else if (autoneg == AUTONEG_ENABLE)
 863                RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
 864        else {
 865                if (netif_msg_link(tp)) {
 866                        printk(KERN_WARNING "%s: "
 867                               "incorrect speed setting refused in TBI mode\n",
 868                               dev->name);
 869                }
 870                ret = -EOPNOTSUPP;
 871        }
 872
 873        return ret;
 874}
 875
 876static int rtl8169_set_speed_xmii(struct net_device *dev,
 877                                  u8 autoneg, u16 speed, u8 duplex)
 878{
 879        struct rtl8169_private *tp = netdev_priv(dev);
 880        void __iomem *ioaddr = tp->mmio_addr;
 881        int giga_ctrl, bmcr;
 882
 883        if (autoneg == AUTONEG_ENABLE) {
 884                int auto_nego;
 885
 886                auto_nego = mdio_read(ioaddr, MII_ADVERTISE);
 887                auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
 888                              ADVERTISE_100HALF | ADVERTISE_100FULL);
 889                auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
 890
 891                giga_ctrl = mdio_read(ioaddr, MII_CTRL1000);
 892                giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
 893
 894                /* The 8100e/8101e/8102e do Fast Ethernet only. */
 895                if ((tp->mac_version != RTL_GIGA_MAC_VER_07) &&
 896                    (tp->mac_version != RTL_GIGA_MAC_VER_08) &&
 897                    (tp->mac_version != RTL_GIGA_MAC_VER_09) &&
 898                    (tp->mac_version != RTL_GIGA_MAC_VER_10) &&
 899                    (tp->mac_version != RTL_GIGA_MAC_VER_13) &&
 900                    (tp->mac_version != RTL_GIGA_MAC_VER_14) &&
 901                    (tp->mac_version != RTL_GIGA_MAC_VER_15) &&
 902                    (tp->mac_version != RTL_GIGA_MAC_VER_16)) {
 903                        giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
 904                } else if (netif_msg_link(tp)) {
 905                        printk(KERN_INFO "%s: PHY does not support 1000Mbps.\n",
 906                               dev->name);
 907                }
 908
 909                bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
 910
 911                if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
 912                    (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
 913                    (tp->mac_version >= RTL_GIGA_MAC_VER_17)) {
 914                        /*
 915                         * Wake up the PHY.
 916                         * Vendor specific (0x1f) and reserved (0x0e) MII
 917                         * registers.
 918                         */
 919                        mdio_write(ioaddr, 0x1f, 0x0000);
 920                        mdio_write(ioaddr, 0x0e, 0x0000);
 921                }
 922
 923                mdio_write(ioaddr, MII_ADVERTISE, auto_nego);
 924                mdio_write(ioaddr, MII_CTRL1000, giga_ctrl);
 925        } else {
 926                giga_ctrl = 0;
 927
 928                if (speed == SPEED_10)
 929                        bmcr = 0;
 930                else if (speed == SPEED_100)
 931                        bmcr = BMCR_SPEED100;
 932                else
 933                        return -EINVAL;
 934
 935                if (duplex == DUPLEX_FULL)
 936                        bmcr |= BMCR_FULLDPLX;
 937
 938                mdio_write(ioaddr, 0x1f, 0x0000);
 939        }
 940
 941        tp->phy_1000_ctrl_reg = giga_ctrl;
 942
 943        mdio_write(ioaddr, MII_BMCR, bmcr);
 944
 945        if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
 946            (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
 947                if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) {
 948                        mdio_write(ioaddr, 0x17, 0x2138);
 949                        mdio_write(ioaddr, 0x0e, 0x0260);
 950                } else {
 951                        mdio_write(ioaddr, 0x17, 0x2108);
 952                        mdio_write(ioaddr, 0x0e, 0x0000);
 953                }
 954        }
 955
 956        return 0;
 957}
 958
 959static int rtl8169_set_speed(struct net_device *dev,
 960                             u8 autoneg, u16 speed, u8 duplex)
 961{
 962        struct rtl8169_private *tp = netdev_priv(dev);
 963        int ret;
 964
 965        ret = tp->set_speed(dev, autoneg, speed, duplex);
 966
 967        if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
 968                mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
 969
 970        return ret;
 971}
 972
 973static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 974{
 975        struct rtl8169_private *tp = netdev_priv(dev);
 976        unsigned long flags;
 977        int ret;
 978
 979        spin_lock_irqsave(&tp->lock, flags);
 980        ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
 981        spin_unlock_irqrestore(&tp->lock, flags);
 982
 983        return ret;
 984}
 985
 986static u32 rtl8169_get_rx_csum(struct net_device *dev)
 987{
 988        struct rtl8169_private *tp = netdev_priv(dev);
 989
 990        return tp->cp_cmd & RxChkSum;
 991}
 992
 993static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
 994{
 995        struct rtl8169_private *tp = netdev_priv(dev);
 996        void __iomem *ioaddr = tp->mmio_addr;
 997        unsigned long flags;
 998
 999        spin_lock_irqsave(&tp->lock, flags);
1000
1001        if (data)
1002                tp->cp_cmd |= RxChkSum;
1003        else
1004                tp->cp_cmd &= ~RxChkSum;
1005
1006        RTL_W16(CPlusCmd, tp->cp_cmd);
1007        RTL_R16(CPlusCmd);
1008
1009        spin_unlock_irqrestore(&tp->lock, flags);
1010
1011        return 0;
1012}
1013
1014#ifdef CONFIG_R8169_VLAN
1015
1016static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1017                                      struct sk_buff *skb)
1018{
1019        return (tp->vlgrp && vlan_tx_tag_present(skb)) ?
1020                TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
1021}
1022
1023static void rtl8169_vlan_rx_register(struct net_device *dev,
1024                                     struct vlan_group *grp)
1025{
1026        struct rtl8169_private *tp = netdev_priv(dev);
1027        void __iomem *ioaddr = tp->mmio_addr;
1028        unsigned long flags;
1029
1030        spin_lock_irqsave(&tp->lock, flags);
1031        tp->vlgrp = grp;
1032        /*
1033         * Do not disable RxVlan on 8110SCd.
1034         */
1035        if (tp->vlgrp || (tp->mac_version == RTL_GIGA_MAC_VER_05))
1036                tp->cp_cmd |= RxVlan;
1037        else
1038                tp->cp_cmd &= ~RxVlan;
1039        RTL_W16(CPlusCmd, tp->cp_cmd);
1040        RTL_R16(CPlusCmd);
1041        spin_unlock_irqrestore(&tp->lock, flags);
1042}
1043
1044static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
1045                               struct sk_buff *skb)
1046{
1047        u32 opts2 = le32_to_cpu(desc->opts2);
1048        struct vlan_group *vlgrp = tp->vlgrp;
1049        int ret;
1050
1051        if (vlgrp && (opts2 & RxVlanTag)) {
1052                vlan_hwaccel_receive_skb(skb, vlgrp, swab16(opts2 & 0xffff));
1053                ret = 0;
1054        } else
1055                ret = -1;
1056        desc->opts2 = 0;
1057        return ret;
1058}
1059
1060#else /* !CONFIG_R8169_VLAN */
1061
1062static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1063                                      struct sk_buff *skb)
1064{
1065        return 0;
1066}
1067
1068static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
1069                               struct sk_buff *skb)
1070{
1071        return -1;
1072}
1073
1074#endif
1075
1076static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
1077{
1078        struct rtl8169_private *tp = netdev_priv(dev);
1079        void __iomem *ioaddr = tp->mmio_addr;
1080        u32 status;
1081
1082        cmd->supported =
1083                SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
1084        cmd->port = PORT_FIBRE;
1085        cmd->transceiver = XCVR_INTERNAL;
1086
1087        status = RTL_R32(TBICSR);
1088        cmd->advertising = (status & TBINwEnable) ?  ADVERTISED_Autoneg : 0;
1089        cmd->autoneg = !!(status & TBINwEnable);
1090
1091        cmd->speed = SPEED_1000;
1092        cmd->duplex = DUPLEX_FULL; /* Always set */
1093
1094        return 0;
1095}
1096
1097static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
1098{
1099        struct rtl8169_private *tp = netdev_priv(dev);
1100
1101        return mii_ethtool_gset(&tp->mii, cmd);
1102}
1103
1104static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1105{
1106        struct rtl8169_private *tp = netdev_priv(dev);
1107        unsigned long flags;
1108        int rc;
1109
1110        spin_lock_irqsave(&tp->lock, flags);
1111
1112        rc = tp->get_settings(dev, cmd);
1113
1114        spin_unlock_irqrestore(&tp->lock, flags);
1115        return rc;
1116}
1117
1118static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1119                             void *p)
1120{
1121        struct rtl8169_private *tp = netdev_priv(dev);
1122        unsigned long flags;
1123
1124        if (regs->len > R8169_REGS_SIZE)
1125                regs->len = R8169_REGS_SIZE;
1126
1127        spin_lock_irqsave(&tp->lock, flags);
1128        memcpy_fromio(p, tp->mmio_addr, regs->len);
1129        spin_unlock_irqrestore(&tp->lock, flags);
1130}
1131
1132static u32 rtl8169_get_msglevel(struct net_device *dev)
1133{
1134        struct rtl8169_private *tp = netdev_priv(dev);
1135
1136        return tp->msg_enable;
1137}
1138
1139static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
1140{
1141        struct rtl8169_private *tp = netdev_priv(dev);
1142
1143        tp->msg_enable = value;
1144}
1145
1146static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1147        "tx_packets",
1148        "rx_packets",
1149        "tx_errors",
1150        "rx_errors",
1151        "rx_missed",
1152        "align_errors",
1153        "tx_single_collisions",
1154        "tx_multi_collisions",
1155        "unicast",
1156        "broadcast",
1157        "multicast",
1158        "tx_aborted",
1159        "tx_underrun",
1160};
1161
1162static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1163{
1164        switch (sset) {
1165        case ETH_SS_STATS:
1166                return ARRAY_SIZE(rtl8169_gstrings);
1167        default:
1168                return -EOPNOTSUPP;
1169        }
1170}
1171
1172static void rtl8169_update_counters(struct net_device *dev)
1173{
1174        struct rtl8169_private *tp = netdev_priv(dev);
1175        void __iomem *ioaddr = tp->mmio_addr;
1176        struct rtl8169_counters *counters;
1177        dma_addr_t paddr;
1178        u32 cmd;
1179        int wait = 1000;
1180
1181        /*
1182         * Some chips are unable to dump tally counters when the receiver
1183         * is disabled.
1184         */
1185        if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0)
1186                return;
1187
1188        counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr);
1189        if (!counters)
1190                return;
1191
1192        RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
1193        cmd = (u64)paddr & DMA_BIT_MASK(32);
1194        RTL_W32(CounterAddrLow, cmd);
1195        RTL_W32(CounterAddrLow, cmd | CounterDump);
1196
1197        while (wait--) {
1198                if ((RTL_R32(CounterAddrLow) & CounterDump) == 0) {
1199                        /* copy updated counters */
1200                        memcpy(&tp->counters, counters, sizeof(*counters));
1201                        break;
1202                }
1203                udelay(10);
1204        }
1205
1206        RTL_W32(CounterAddrLow, 0);
1207        RTL_W32(CounterAddrHigh, 0);
1208
1209        pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr);
1210}
1211
1212static void rtl8169_get_ethtool_stats(struct net_device *dev,
1213                                      struct ethtool_stats *stats, u64 *data)
1214{
1215        struct rtl8169_private *tp = netdev_priv(dev);
1216
1217        ASSERT_RTNL();
1218
1219        rtl8169_update_counters(dev);
1220
1221        data[0] = le64_to_cpu(tp->counters.tx_packets);
1222        data[1] = le64_to_cpu(tp->counters.rx_packets);
1223        data[2] = le64_to_cpu(tp->counters.tx_errors);
1224        data[3] = le32_to_cpu(tp->counters.rx_errors);
1225        data[4] = le16_to_cpu(tp->counters.rx_missed);
1226        data[5] = le16_to_cpu(tp->counters.align_errors);
1227        data[6] = le32_to_cpu(tp->counters.tx_one_collision);
1228        data[7] = le32_to_cpu(tp->counters.tx_multi_collision);
1229        data[8] = le64_to_cpu(tp->counters.rx_unicast);
1230        data[9] = le64_to_cpu(tp->counters.rx_broadcast);
1231        data[10] = le32_to_cpu(tp->counters.rx_multicast);
1232        data[11] = le16_to_cpu(tp->counters.tx_aborted);
1233        data[12] = le16_to_cpu(tp->counters.tx_underun);
1234}
1235
1236static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1237{
1238        switch(stringset) {
1239        case ETH_SS_STATS:
1240                memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1241                break;
1242        }
1243}
1244
1245static const struct ethtool_ops rtl8169_ethtool_ops = {
1246        .get_drvinfo            = rtl8169_get_drvinfo,
1247        .get_regs_len           = rtl8169_get_regs_len,
1248        .get_link               = ethtool_op_get_link,
1249        .get_settings           = rtl8169_get_settings,
1250        .set_settings           = rtl8169_set_settings,
1251        .get_msglevel           = rtl8169_get_msglevel,
1252        .set_msglevel           = rtl8169_set_msglevel,
1253        .get_rx_csum            = rtl8169_get_rx_csum,
1254        .set_rx_csum            = rtl8169_set_rx_csum,
1255        .set_tx_csum            = ethtool_op_set_tx_csum,
1256        .set_sg                 = ethtool_op_set_sg,
1257        .set_tso                = ethtool_op_set_tso,
1258        .get_regs               = rtl8169_get_regs,
1259        .get_wol                = rtl8169_get_wol,
1260        .set_wol                = rtl8169_set_wol,
1261        .get_strings            = rtl8169_get_strings,
1262        .get_sset_count         = rtl8169_get_sset_count,
1263        .get_ethtool_stats      = rtl8169_get_ethtool_stats,
1264};
1265
1266static void rtl8169_get_mac_version(struct rtl8169_private *tp,
1267                                    void __iomem *ioaddr)
1268{
1269        /*
1270         * The driver currently handles the 8168Bf and the 8168Be identically
1271         * but they can be identified more specifically through the test below
1272         * if needed:
1273         *
1274         * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1275         *
1276         * Same thing for the 8101Eb and the 8101Ec:
1277         *
1278         * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1279         */
1280        const struct {
1281                u32 mask;
1282                u32 val;
1283                int mac_version;
1284        } mac_info[] = {
1285                /* 8168D family. */
1286                { 0x7cf00000, 0x28300000,       RTL_GIGA_MAC_VER_26 },
1287                { 0x7cf00000, 0x28100000,       RTL_GIGA_MAC_VER_25 },
1288                { 0x7c800000, 0x28800000,       RTL_GIGA_MAC_VER_27 },
1289                { 0x7c800000, 0x28000000,       RTL_GIGA_MAC_VER_26 },
1290
1291                /* 8168C family. */
1292                { 0x7cf00000, 0x3ca00000,       RTL_GIGA_MAC_VER_24 },
1293                { 0x7cf00000, 0x3c900000,       RTL_GIGA_MAC_VER_23 },
1294                { 0x7cf00000, 0x3c800000,       RTL_GIGA_MAC_VER_18 },
1295                { 0x7c800000, 0x3c800000,       RTL_GIGA_MAC_VER_24 },
1296                { 0x7cf00000, 0x3c000000,       RTL_GIGA_MAC_VER_19 },
1297                { 0x7cf00000, 0x3c200000,       RTL_GIGA_MAC_VER_20 },
1298                { 0x7cf00000, 0x3c300000,       RTL_GIGA_MAC_VER_21 },
1299                { 0x7cf00000, 0x3c400000,       RTL_GIGA_MAC_VER_22 },
1300                { 0x7c800000, 0x3c000000,       RTL_GIGA_MAC_VER_22 },
1301
1302                /* 8168B family. */
1303                { 0x7cf00000, 0x38000000,       RTL_GIGA_MAC_VER_12 },
1304                { 0x7cf00000, 0x38500000,       RTL_GIGA_MAC_VER_17 },
1305                { 0x7c800000, 0x38000000,       RTL_GIGA_MAC_VER_17 },
1306                { 0x7c800000, 0x30000000,       RTL_GIGA_MAC_VER_11 },
1307
1308                /* 8101 family. */
1309                { 0x7cf00000, 0x34a00000,       RTL_GIGA_MAC_VER_09 },
1310                { 0x7cf00000, 0x24a00000,       RTL_GIGA_MAC_VER_09 },
1311                { 0x7cf00000, 0x34900000,       RTL_GIGA_MAC_VER_08 },
1312                { 0x7cf00000, 0x24900000,       RTL_GIGA_MAC_VER_08 },
1313                { 0x7cf00000, 0x34800000,       RTL_GIGA_MAC_VER_07 },
1314                { 0x7cf00000, 0x24800000,       RTL_GIGA_MAC_VER_07 },
1315                { 0x7cf00000, 0x34000000,       RTL_GIGA_MAC_VER_13 },
1316                { 0x7cf00000, 0x34300000,       RTL_GIGA_MAC_VER_10 },
1317                { 0x7cf00000, 0x34200000,       RTL_GIGA_MAC_VER_16 },
1318                { 0x7c800000, 0x34800000,       RTL_GIGA_MAC_VER_09 },
1319                { 0x7c800000, 0x24800000,       RTL_GIGA_MAC_VER_09 },
1320                { 0x7c800000, 0x34000000,       RTL_GIGA_MAC_VER_16 },
1321                /* FIXME: where did these entries come from ? -- FR */
1322                { 0xfc800000, 0x38800000,       RTL_GIGA_MAC_VER_15 },
1323                { 0xfc800000, 0x30800000,       RTL_GIGA_MAC_VER_14 },
1324
1325                /* 8110 family. */
1326                { 0xfc800000, 0x98000000,       RTL_GIGA_MAC_VER_06 },
1327                { 0xfc800000, 0x18000000,       RTL_GIGA_MAC_VER_05 },
1328                { 0xfc800000, 0x10000000,       RTL_GIGA_MAC_VER_04 },
1329                { 0xfc800000, 0x04000000,       RTL_GIGA_MAC_VER_03 },
1330                { 0xfc800000, 0x00800000,       RTL_GIGA_MAC_VER_02 },
1331                { 0xfc800000, 0x00000000,       RTL_GIGA_MAC_VER_01 },
1332
1333                /* Catch-all */
1334                { 0x00000000, 0x00000000,       RTL_GIGA_MAC_NONE   }
1335        }, *p = mac_info;
1336        u32 reg;
1337
1338        reg = RTL_R32(TxConfig);
1339        while ((reg & p->mask) != p->val)
1340                p++;
1341        tp->mac_version = p->mac_version;
1342}
1343
1344static void rtl8169_print_mac_version(struct rtl8169_private *tp)
1345{
1346        dprintk("mac_version = 0x%02x\n", tp->mac_version);
1347}
1348
1349struct phy_reg {
1350        u16 reg;
1351        u16 val;
1352};
1353
1354static void rtl_phy_write(void __iomem *ioaddr, struct phy_reg *regs, int len)
1355{
1356        while (len-- > 0) {
1357                mdio_write(ioaddr, regs->reg, regs->val);
1358                regs++;
1359        }
1360}
1361
1362static void rtl8169s_hw_phy_config(void __iomem *ioaddr)
1363{
1364        struct phy_reg phy_reg_init[] = {
1365                { 0x1f, 0x0001 },
1366                { 0x06, 0x006e },
1367                { 0x08, 0x0708 },
1368                { 0x15, 0x4000 },
1369                { 0x18, 0x65c7 },
1370
1371                { 0x1f, 0x0001 },
1372                { 0x03, 0x00a1 },
1373                { 0x02, 0x0008 },
1374                { 0x01, 0x0120 },
1375                { 0x00, 0x1000 },
1376                { 0x04, 0x0800 },
1377                { 0x04, 0x0000 },
1378
1379                { 0x03, 0xff41 },
1380                { 0x02, 0xdf60 },
1381                { 0x01, 0x0140 },
1382                { 0x00, 0x0077 },
1383                { 0x04, 0x7800 },
1384                { 0x04, 0x7000 },
1385
1386                { 0x03, 0x802f },
1387                { 0x02, 0x4f02 },
1388                { 0x01, 0x0409 },
1389                { 0x00, 0xf0f9 },
1390                { 0x04, 0x9800 },
1391                { 0x04, 0x9000 },
1392
1393                { 0x03, 0xdf01 },
1394                { 0x02, 0xdf20 },
1395                { 0x01, 0xff95 },
1396                { 0x00, 0xba00 },
1397                { 0x04, 0xa800 },
1398                { 0x04, 0xa000 },
1399
1400                { 0x03, 0xff41 },
1401                { 0x02, 0xdf20 },
1402                { 0x01, 0x0140 },
1403                { 0x00, 0x00bb },
1404                { 0x04, 0xb800 },
1405                { 0x04, 0xb000 },
1406
1407                { 0x03, 0xdf41 },
1408                { 0x02, 0xdc60 },
1409                { 0x01, 0x6340 },
1410                { 0x00, 0x007d },
1411                { 0x04, 0xd800 },
1412                { 0x04, 0xd000 },
1413
1414                { 0x03, 0xdf01 },
1415                { 0x02, 0xdf20 },
1416                { 0x01, 0x100a },
1417                { 0x00, 0xa0ff },
1418                { 0x04, 0xf800 },
1419                { 0x04, 0xf000 },
1420
1421                { 0x1f, 0x0000 },
1422                { 0x0b, 0x0000 },
1423                { 0x00, 0x9200 }
1424        };
1425
1426        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1427}
1428
1429static void rtl8169sb_hw_phy_config(void __iomem *ioaddr)
1430{
1431        struct phy_reg phy_reg_init[] = {
1432                { 0x1f, 0x0002 },
1433                { 0x01, 0x90d0 },
1434                { 0x1f, 0x0000 }
1435        };
1436
1437        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1438}
1439
1440static void rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp,
1441                                           void __iomem *ioaddr)
1442{
1443        struct pci_dev *pdev = tp->pci_dev;
1444        u16 vendor_id, device_id;
1445
1446        pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id);
1447        pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &device_id);
1448
1449        if ((vendor_id != PCI_VENDOR_ID_GIGABYTE) || (device_id != 0xe000))
1450                return;
1451
1452        mdio_write(ioaddr, 0x1f, 0x0001);
1453        mdio_write(ioaddr, 0x10, 0xf01b);
1454        mdio_write(ioaddr, 0x1f, 0x0000);
1455}
1456
1457static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp,
1458                                     void __iomem *ioaddr)
1459{
1460        struct phy_reg phy_reg_init[] = {
1461                { 0x1f, 0x0001 },
1462                { 0x04, 0x0000 },
1463                { 0x03, 0x00a1 },
1464                { 0x02, 0x0008 },
1465                { 0x01, 0x0120 },
1466                { 0x00, 0x1000 },
1467                { 0x04, 0x0800 },
1468                { 0x04, 0x9000 },
1469                { 0x03, 0x802f },
1470                { 0x02, 0x4f02 },
1471                { 0x01, 0x0409 },
1472                { 0x00, 0xf099 },
1473                { 0x04, 0x9800 },
1474                { 0x04, 0xa000 },
1475                { 0x03, 0xdf01 },
1476                { 0x02, 0xdf20 },
1477                { 0x01, 0xff95 },
1478                { 0x00, 0xba00 },
1479                { 0x04, 0xa800 },
1480                { 0x04, 0xf000 },
1481                { 0x03, 0xdf01 },
1482                { 0x02, 0xdf20 },
1483                { 0x01, 0x101a },
1484                { 0x00, 0xa0ff },
1485                { 0x04, 0xf800 },
1486                { 0x04, 0x0000 },
1487                { 0x1f, 0x0000 },
1488
1489                { 0x1f, 0x0001 },
1490                { 0x10, 0xf41b },
1491                { 0x14, 0xfb54 },
1492                { 0x18, 0xf5c7 },
1493                { 0x1f, 0x0000 },
1494
1495                { 0x1f, 0x0001 },
1496                { 0x17, 0x0cc0 },
1497                { 0x1f, 0x0000 }
1498        };
1499
1500        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1501
1502        rtl8169scd_hw_phy_config_quirk(tp, ioaddr);
1503}
1504
1505static void rtl8169sce_hw_phy_config(void __iomem *ioaddr)
1506{
1507        struct phy_reg phy_reg_init[] = {
1508                { 0x1f, 0x0001 },
1509                { 0x04, 0x0000 },
1510                { 0x03, 0x00a1 },
1511                { 0x02, 0x0008 },
1512                { 0x01, 0x0120 },
1513                { 0x00, 0x1000 },
1514                { 0x04, 0x0800 },
1515                { 0x04, 0x9000 },
1516                { 0x03, 0x802f },
1517                { 0x02, 0x4f02 },
1518                { 0x01, 0x0409 },
1519                { 0x00, 0xf099 },
1520                { 0x04, 0x9800 },
1521                { 0x04, 0xa000 },
1522                { 0x03, 0xdf01 },
1523                { 0x02, 0xdf20 },
1524                { 0x01, 0xff95 },
1525                { 0x00, 0xba00 },
1526                { 0x04, 0xa800 },
1527                { 0x04, 0xf000 },
1528                { 0x03, 0xdf01 },
1529                { 0x02, 0xdf20 },
1530                { 0x01, 0x101a },
1531                { 0x00, 0xa0ff },
1532                { 0x04, 0xf800 },
1533                { 0x04, 0x0000 },
1534                { 0x1f, 0x0000 },
1535
1536                { 0x1f, 0x0001 },
1537                { 0x0b, 0x8480 },
1538                { 0x1f, 0x0000 },
1539
1540                { 0x1f, 0x0001 },
1541                { 0x18, 0x67c7 },
1542                { 0x04, 0x2000 },
1543                { 0x03, 0x002f },
1544                { 0x02, 0x4360 },
1545                { 0x01, 0x0109 },
1546                { 0x00, 0x3022 },
1547                { 0x04, 0x2800 },
1548                { 0x1f, 0x0000 },
1549
1550                { 0x1f, 0x0001 },
1551                { 0x17, 0x0cc0 },
1552                { 0x1f, 0x0000 }
1553        };
1554
1555        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1556}
1557
1558static void rtl8168bb_hw_phy_config(void __iomem *ioaddr)
1559{
1560        struct phy_reg phy_reg_init[] = {
1561                { 0x10, 0xf41b },
1562                { 0x1f, 0x0000 }
1563        };
1564
1565        mdio_write(ioaddr, 0x1f, 0x0001);
1566        mdio_patch(ioaddr, 0x16, 1 << 0);
1567
1568        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1569}
1570
1571static void rtl8168bef_hw_phy_config(void __iomem *ioaddr)
1572{
1573        struct phy_reg phy_reg_init[] = {
1574                { 0x1f, 0x0001 },
1575                { 0x10, 0xf41b },
1576                { 0x1f, 0x0000 }
1577        };
1578
1579        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1580}
1581
1582static void rtl8168cp_1_hw_phy_config(void __iomem *ioaddr)
1583{
1584        struct phy_reg phy_reg_init[] = {
1585                { 0x1f, 0x0000 },
1586                { 0x1d, 0x0f00 },
1587                { 0x1f, 0x0002 },
1588                { 0x0c, 0x1ec8 },
1589                { 0x1f, 0x0000 }
1590        };
1591
1592        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1593}
1594
1595static void rtl8168cp_2_hw_phy_config(void __iomem *ioaddr)
1596{
1597        struct phy_reg phy_reg_init[] = {
1598                { 0x1f, 0x0001 },
1599                { 0x1d, 0x3d98 },
1600                { 0x1f, 0x0000 }
1601        };
1602
1603        mdio_write(ioaddr, 0x1f, 0x0000);
1604        mdio_patch(ioaddr, 0x14, 1 << 5);
1605        mdio_patch(ioaddr, 0x0d, 1 << 5);
1606
1607        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1608}
1609
1610static void rtl8168c_1_hw_phy_config(void __iomem *ioaddr)
1611{
1612        struct phy_reg phy_reg_init[] = {
1613                { 0x1f, 0x0001 },
1614                { 0x12, 0x2300 },
1615                { 0x1f, 0x0002 },
1616                { 0x00, 0x88d4 },
1617                { 0x01, 0x82b1 },
1618                { 0x03, 0x7002 },
1619                { 0x08, 0x9e30 },
1620                { 0x09, 0x01f0 },
1621                { 0x0a, 0x5500 },
1622                { 0x0c, 0x00c8 },
1623                { 0x1f, 0x0003 },
1624                { 0x12, 0xc096 },
1625                { 0x16, 0x000a },
1626                { 0x1f, 0x0000 },
1627                { 0x1f, 0x0000 },
1628                { 0x09, 0x2000 },
1629                { 0x09, 0x0000 }
1630        };
1631
1632        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1633
1634        mdio_patch(ioaddr, 0x14, 1 << 5);
1635        mdio_patch(ioaddr, 0x0d, 1 << 5);
1636        mdio_write(ioaddr, 0x1f, 0x0000);
1637}
1638
1639static void rtl8168c_2_hw_phy_config(void __iomem *ioaddr)
1640{
1641        struct phy_reg phy_reg_init[] = {
1642                { 0x1f, 0x0001 },
1643                { 0x12, 0x2300 },
1644                { 0x03, 0x802f },
1645                { 0x02, 0x4f02 },
1646                { 0x01, 0x0409 },
1647                { 0x00, 0xf099 },
1648                { 0x04, 0x9800 },
1649                { 0x04, 0x9000 },
1650                { 0x1d, 0x3d98 },
1651                { 0x1f, 0x0002 },
1652                { 0x0c, 0x7eb8 },
1653                { 0x06, 0x0761 },
1654                { 0x1f, 0x0003 },
1655                { 0x16, 0x0f0a },
1656                { 0x1f, 0x0000 }
1657        };
1658
1659        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1660
1661        mdio_patch(ioaddr, 0x16, 1 << 0);
1662        mdio_patch(ioaddr, 0x14, 1 << 5);
1663        mdio_patch(ioaddr, 0x0d, 1 << 5);
1664        mdio_write(ioaddr, 0x1f, 0x0000);
1665}
1666
1667static void rtl8168c_3_hw_phy_config(void __iomem *ioaddr)
1668{
1669        struct phy_reg phy_reg_init[] = {
1670                { 0x1f, 0x0001 },
1671                { 0x12, 0x2300 },
1672                { 0x1d, 0x3d98 },
1673                { 0x1f, 0x0002 },
1674                { 0x0c, 0x7eb8 },
1675                { 0x06, 0x5461 },
1676                { 0x1f, 0x0003 },
1677                { 0x16, 0x0f0a },
1678                { 0x1f, 0x0000 }
1679        };
1680
1681        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1682
1683        mdio_patch(ioaddr, 0x16, 1 << 0);
1684        mdio_patch(ioaddr, 0x14, 1 << 5);
1685        mdio_patch(ioaddr, 0x0d, 1 << 5);
1686        mdio_write(ioaddr, 0x1f, 0x0000);
1687}
1688
1689static void rtl8168c_4_hw_phy_config(void __iomem *ioaddr)
1690{
1691        rtl8168c_3_hw_phy_config(ioaddr);
1692}
1693
1694static void rtl8168d_1_hw_phy_config(void __iomem *ioaddr)
1695{
1696        static struct phy_reg phy_reg_init_0[] = {
1697                { 0x1f, 0x0001 },
1698                { 0x06, 0x4064 },
1699                { 0x07, 0x2863 },
1700                { 0x08, 0x059c },
1701                { 0x09, 0x26b4 },
1702                { 0x0a, 0x6a19 },
1703                { 0x0b, 0xdcc8 },
1704                { 0x10, 0xf06d },
1705                { 0x14, 0x7f68 },
1706                { 0x18, 0x7fd9 },
1707                { 0x1c, 0xf0ff },
1708                { 0x1d, 0x3d9c },
1709                { 0x1f, 0x0003 },
1710                { 0x12, 0xf49f },
1711                { 0x13, 0x070b },
1712                { 0x1a, 0x05ad },
1713                { 0x14, 0x94c0 }
1714        };
1715        static struct phy_reg phy_reg_init_1[] = {
1716                { 0x1f, 0x0002 },
1717                { 0x06, 0x5561 },
1718                { 0x1f, 0x0005 },
1719                { 0x05, 0x8332 },
1720                { 0x06, 0x5561 }
1721        };
1722        static struct phy_reg phy_reg_init_2[] = {
1723                { 0x1f, 0x0005 },
1724                { 0x05, 0xffc2 },
1725                { 0x1f, 0x0005 },
1726                { 0x05, 0x8000 },
1727                { 0x06, 0xf8f9 },
1728                { 0x06, 0xfaef },
1729                { 0x06, 0x59ee },
1730                { 0x06, 0xf8ea },
1731                { 0x06, 0x00ee },
1732                { 0x06, 0xf8eb },
1733                { 0x06, 0x00e0 },
1734                { 0x06, 0xf87c },
1735                { 0x06, 0xe1f8 },
1736                { 0x06, 0x7d59 },
1737                { 0x06, 0x0fef },
1738                { 0x06, 0x0139 },
1739                { 0x06, 0x029e },
1740                { 0x06, 0x06ef },
1741                { 0x06, 0x1039 },
1742                { 0x06, 0x089f },
1743                { 0x06, 0x2aee },
1744                { 0x06, 0xf8ea },
1745                { 0x06, 0x00ee },
1746                { 0x06, 0xf8eb },
1747                { 0x06, 0x01e0 },
1748                { 0x06, 0xf87c },
1749                { 0x06, 0xe1f8 },
1750                { 0x06, 0x7d58 },
1751                { 0x06, 0x409e },
1752                { 0x06, 0x0f39 },
1753                { 0x06, 0x46aa },
1754                { 0x06, 0x0bbf },
1755                { 0x06, 0x8290 },
1756                { 0x06, 0xd682 },
1757                { 0x06, 0x9802 },
1758                { 0x06, 0x014f },
1759                { 0x06, 0xae09 },
1760                { 0x06, 0xbf82 },
1761                { 0x06, 0x98d6 },
1762                { 0x06, 0x82a0 },
1763                { 0x06, 0x0201 },
1764                { 0x06, 0x4fef },
1765                { 0x06, 0x95fe },
1766                { 0x06, 0xfdfc },
1767                { 0x06, 0x05f8 },
1768                { 0x06, 0xf9fa },
1769                { 0x06, 0xeef8 },
1770                { 0x06, 0xea00 },
1771                { 0x06, 0xeef8 },
1772                { 0x06, 0xeb00 },
1773                { 0x06, 0xe2f8 },
1774                { 0x06, 0x7ce3 },
1775                { 0x06, 0xf87d },
1776                { 0x06, 0xa511 },
1777                { 0x06, 0x1112 },
1778                { 0x06, 0xd240 },
1779                { 0x06, 0xd644 },
1780                { 0x06, 0x4402 },
1781                { 0x06, 0x8217 },
1782                { 0x06, 0xd2a0 },
1783                { 0x06, 0xd6aa },
1784                { 0x06, 0xaa02 },
1785                { 0x06, 0x8217 },
1786                { 0x06, 0xae0f },
1787                { 0x06, 0xa544 },
1788                { 0x06, 0x4402 },
1789                { 0x06, 0xae4d },
1790                { 0x06, 0xa5aa },
1791                { 0x06, 0xaa02 },
1792                { 0x06, 0xae47 },
1793                { 0x06, 0xaf82 },
1794                { 0x06, 0x13ee },
1795                { 0x06, 0x834e },
1796                { 0x06, 0x00ee },
1797                { 0x06, 0x834d },
1798                { 0x06, 0x0fee },
1799                { 0x06, 0x834c },
1800                { 0x06, 0x0fee },
1801                { 0x06, 0x834f },
1802                { 0x06, 0x00ee },
1803                { 0x06, 0x8351 },
1804                { 0x06, 0x00ee },
1805                { 0x06, 0x834a },
1806                { 0x06, 0xffee },
1807                { 0x06, 0x834b },
1808                { 0x06, 0xffe0 },
1809                { 0x06, 0x8330 },
1810                { 0x06, 0xe183 },
1811                { 0x06, 0x3158 },
1812                { 0x06, 0xfee4 },
1813                { 0x06, 0xf88a },
1814                { 0x06, 0xe5f8 },
1815                { 0x06, 0x8be0 },
1816                { 0x06, 0x8332 },
1817                { 0x06, 0xe183 },
1818                { 0x06, 0x3359 },
1819                { 0x06, 0x0fe2 },
1820                { 0x06, 0x834d },
1821                { 0x06, 0x0c24 },
1822                { 0x06, 0x5af0 },
1823                { 0x06, 0x1e12 },
1824                { 0x06, 0xe4f8 },
1825                { 0x06, 0x8ce5 },
1826                { 0x06, 0xf88d },
1827                { 0x06, 0xaf82 },
1828                { 0x06, 0x13e0 },
1829                { 0x06, 0x834f },
1830                { 0x06, 0x10e4 },
1831                { 0x06, 0x834f },
1832                { 0x06, 0xe083 },
1833                { 0x06, 0x4e78 },
1834                { 0x06, 0x009f },
1835                { 0x06, 0x0ae0 },
1836                { 0x06, 0x834f },
1837                { 0x06, 0xa010 },
1838                { 0x06, 0xa5ee },
1839                { 0x06, 0x834e },
1840                { 0x06, 0x01e0 },
1841                { 0x06, 0x834e },
1842                { 0x06, 0x7805 },
1843                { 0x06, 0x9e9a },
1844                { 0x06, 0xe083 },
1845                { 0x06, 0x4e78 },
1846                { 0x06, 0x049e },
1847                { 0x06, 0x10e0 },
1848                { 0x06, 0x834e },
1849                { 0x06, 0x7803 },
1850                { 0x06, 0x9e0f },
1851                { 0x06, 0xe083 },
1852                { 0x06, 0x4e78 },
1853                { 0x06, 0x019e },
1854                { 0x06, 0x05ae },
1855                { 0x06, 0x0caf },
1856                { 0x06, 0x81f8 },
1857                { 0x06, 0xaf81 },
1858                { 0x06, 0xa3af },
1859                { 0x06, 0x81dc },
1860                { 0x06, 0xaf82 },
1861                { 0x06, 0x13ee },
1862                { 0x06, 0x8348 },
1863                { 0x06, 0x00ee },
1864                { 0x06, 0x8349 },
1865                { 0x06, 0x00e0 },
1866                { 0x06, 0x8351 },
1867                { 0x06, 0x10e4 },
1868                { 0x06, 0x8351 },
1869                { 0x06, 0x5801 },
1870                { 0x06, 0x9fea },
1871                { 0x06, 0xd000 },
1872                { 0x06, 0xd180 },
1873                { 0x06, 0x1f66 },
1874                { 0x06, 0xe2f8 },
1875                { 0x06, 0xeae3 },
1876                { 0x06, 0xf8eb },
1877                { 0x06, 0x5af8 },
1878                { 0x06, 0x1e20 },
1879                { 0x06, 0xe6f8 },
1880                { 0x06, 0xeae5 },
1881                { 0x06, 0xf8eb },
1882                { 0x06, 0xd302 },
1883                { 0x06, 0xb3fe },
1884                { 0x06, 0xe2f8 },
1885                { 0x06, 0x7cef },
1886                { 0x06, 0x325b },
1887                { 0x06, 0x80e3 },
1888                { 0x06, 0xf87d },
1889                { 0x06, 0x9e03 },
1890                { 0x06, 0x7dff },
1891                { 0x06, 0xff0d },
1892                { 0x06, 0x581c },
1893                { 0x06, 0x551a },
1894                { 0x06, 0x6511 },
1895                { 0x06, 0xa190 },
1896                { 0x06, 0xd3e2 },
1897                { 0x06, 0x8348 },
1898                { 0x06, 0xe383 },
1899                { 0x06, 0x491b },
1900                { 0x06, 0x56ab },
1901                { 0x06, 0x08ef },
1902                { 0x06, 0x56e6 },
1903                { 0x06, 0x8348 },
1904                { 0x06, 0xe783 },
1905                { 0x06, 0x4910 },
1906                { 0x06, 0xd180 },
1907                { 0x06, 0x1f66 },
1908                { 0x06, 0xa004 },
1909                { 0x06, 0xb9e2 },
1910                { 0x06, 0x8348 },
1911                { 0x06, 0xe383 },
1912                { 0x06, 0x49ef },
1913                { 0x06, 0x65e2 },
1914                { 0x06, 0x834a },
1915                { 0x06, 0xe383 },
1916                { 0x06, 0x4b1b },
1917                { 0x06, 0x56aa },
1918                { 0x06, 0x0eef },
1919                { 0x06, 0x56e6 },
1920                { 0x06, 0x834a },
1921                { 0x06, 0xe783 },
1922                { 0x06, 0x4be2 },
1923                { 0x06, 0x834d },
1924                { 0x06, 0xe683 },
1925                { 0x06, 0x4ce0 },
1926                { 0x06, 0x834d },
1927                { 0x06, 0xa000 },
1928                { 0x06, 0x0caf },
1929                { 0x06, 0x81dc },
1930                { 0x06, 0xe083 },
1931                { 0x06, 0x4d10 },
1932                { 0x06, 0xe483 },
1933                { 0x06, 0x4dae },
1934                { 0x06, 0x0480 },
1935                { 0x06, 0xe483 },
1936                { 0x06, 0x4de0 },
1937                { 0x06, 0x834e },
1938                { 0x06, 0x7803 },
1939                { 0x06, 0x9e0b },
1940                { 0x06, 0xe083 },
1941                { 0x06, 0x4e78 },
1942                { 0x06, 0x049e },
1943                { 0x06, 0x04ee },
1944                { 0x06, 0x834e },
1945                { 0x06, 0x02e0 },
1946                { 0x06, 0x8332 },
1947                { 0x06, 0xe183 },
1948                { 0x06, 0x3359 },
1949                { 0x06, 0x0fe2 },
1950                { 0x06, 0x834d },
1951                { 0x06, 0x0c24 },
1952                { 0x06, 0x5af0 },
1953                { 0x06, 0x1e12 },
1954                { 0x06, 0xe4f8 },
1955                { 0x06, 0x8ce5 },
1956                { 0x06, 0xf88d },
1957                { 0x06, 0xe083 },
1958                { 0x06, 0x30e1 },
1959                { 0x06, 0x8331 },
1960                { 0x06, 0x6801 },
1961                { 0x06, 0xe4f8 },
1962                { 0x06, 0x8ae5 },
1963                { 0x06, 0xf88b },
1964                { 0x06, 0xae37 },
1965                { 0x06, 0xee83 },
1966                { 0x06, 0x4e03 },
1967                { 0x06, 0xe083 },
1968                { 0x06, 0x4ce1 },
1969                { 0x06, 0x834d },
1970                { 0x06, 0x1b01 },
1971                { 0x06, 0x9e04 },
1972                { 0x06, 0xaaa1 },
1973                { 0x06, 0xaea8 },
1974                { 0x06, 0xee83 },
1975                { 0x06, 0x4e04 },
1976                { 0x06, 0xee83 },
1977                { 0x06, 0x4f00 },
1978                { 0x06, 0xaeab },
1979                { 0x06, 0xe083 },
1980                { 0x06, 0x4f78 },
1981                { 0x06, 0x039f },
1982                { 0x06, 0x14ee },
1983                { 0x06, 0x834e },
1984                { 0x06, 0x05d2 },
1985                { 0x06, 0x40d6 },
1986                { 0x06, 0x5554 },
1987                { 0x06, 0x0282 },
1988                { 0x06, 0x17d2 },
1989                { 0x06, 0xa0d6 },
1990                { 0x06, 0xba00 },
1991                { 0x06, 0x0282 },
1992                { 0x06, 0x17fe },
1993                { 0x06, 0xfdfc },
1994                { 0x06, 0x05f8 },
1995                { 0x06, 0xe0f8 },
1996                { 0x06, 0x60e1 },
1997                { 0x06, 0xf861 },
1998                { 0x06, 0x6802 },
1999                { 0x06, 0xe4f8 },
2000                { 0x06, 0x60e5 },
2001                { 0x06, 0xf861 },
2002                { 0x06, 0xe0f8 },
2003                { 0x06, 0x48e1 },
2004                { 0x06, 0xf849 },
2005                { 0x06, 0x580f },
2006                { 0x06, 0x1e02 },
2007                { 0x06, 0xe4f8 },
2008                { 0x06, 0x48e5 },
2009                { 0x06, 0xf849 },
2010                { 0x06, 0xd000 },
2011                { 0x06, 0x0282 },
2012                { 0x06, 0x5bbf },
2013                { 0x06, 0x8350 },
2014                { 0x06, 0xef46 },
2015                { 0x06, 0xdc19 },
2016                { 0x06, 0xddd0 },
2017                { 0x06, 0x0102 },
2018                { 0x06, 0x825b },
2019                { 0x06, 0x0282 },
2020                { 0x06, 0x77e0 },
2021                { 0x06, 0xf860 },
2022                { 0x06, 0xe1f8 },
2023                { 0x06, 0x6158 },
2024                { 0x06, 0xfde4 },
2025                { 0x06, 0xf860 },
2026                { 0x06, 0xe5f8 },
2027                { 0x06, 0x61fc },
2028                { 0x06, 0x04f9 },
2029                { 0x06, 0xfafb },
2030                { 0x06, 0xc6bf },
2031                { 0x06, 0xf840 },
2032                { 0x06, 0xbe83 },
2033                { 0x06, 0x50a0 },
2034                { 0x06, 0x0101 },
2035                { 0x06, 0x071b },
2036                { 0x06, 0x89cf },
2037                { 0x06, 0xd208 },
2038                { 0x06, 0xebdb },
2039                { 0x06, 0x19b2 },
2040                { 0x06, 0xfbff },
2041                { 0x06, 0xfefd },
2042                { 0x06, 0x04f8 },
2043                { 0x06, 0xe0f8 },
2044                { 0x06, 0x48e1 },
2045                { 0x06, 0xf849 },
2046                { 0x06, 0x6808 },
2047                { 0x06, 0xe4f8 },
2048                { 0x06, 0x48e5 },
2049                { 0x06, 0xf849 },
2050                { 0x06, 0x58f7 },
2051                { 0x06, 0xe4f8 },
2052                { 0x06, 0x48e5 },
2053                { 0x06, 0xf849 },
2054                { 0x06, 0xfc04 },
2055                { 0x06, 0x4d20 },
2056                { 0x06, 0x0002 },
2057                { 0x06, 0x4e22 },
2058                { 0x06, 0x0002 },
2059                { 0x06, 0x4ddf },
2060                { 0x06, 0xff01 },
2061                { 0x06, 0x4edd },
2062                { 0x06, 0xff01 },
2063                { 0x05, 0x83d4 },
2064                { 0x06, 0x8000 },
2065                { 0x05, 0x83d8 },
2066                { 0x06, 0x8051 },
2067                { 0x02, 0x6010 },
2068                { 0x03, 0xdc00 },
2069                { 0x05, 0xfff6 },
2070                { 0x06, 0x00fc },
2071                { 0x1f, 0x0000 },
2072
2073                { 0x1f, 0x0000 },
2074                { 0x0d, 0xf880 },
2075                { 0x1f, 0x0000 }
2076        };
2077
2078        rtl_phy_write(ioaddr, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2079
2080        mdio_write(ioaddr, 0x1f, 0x0002);
2081        mdio_plus_minus(ioaddr, 0x0b, 0x0010, 0x00ef);
2082        mdio_plus_minus(ioaddr, 0x0c, 0xa200, 0x5d00);
2083
2084        rtl_phy_write(ioaddr, phy_reg_init_1, ARRAY_SIZE(phy_reg_init_1));
2085
2086        if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2087                struct phy_reg phy_reg_init[] = {
2088                        { 0x1f, 0x0002 },
2089                        { 0x05, 0x669a },
2090                        { 0x1f, 0x0005 },
2091                        { 0x05, 0x8330 },
2092                        { 0x06, 0x669a },
2093                        { 0x1f, 0x0002 }
2094                };
2095                int val;
2096
2097                rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2098
2099                val = mdio_read(ioaddr, 0x0d);
2100
2101                if ((val & 0x00ff) != 0x006c) {
2102                        u32 set[] = {
2103                                0x0065, 0x0066, 0x0067, 0x0068,
2104                                0x0069, 0x006a, 0x006b, 0x006c
2105                        };
2106                        int i;
2107
2108                        mdio_write(ioaddr, 0x1f, 0x0002);
2109
2110                        val &= 0xff00;
2111                        for (i = 0; i < ARRAY_SIZE(set); i++)
2112                                mdio_write(ioaddr, 0x0d, val | set[i]);
2113                }
2114        } else {
2115                struct phy_reg phy_reg_init[] = {
2116                        { 0x1f, 0x0002 },
2117                        { 0x05, 0x6662 },
2118                        { 0x1f, 0x0005 },
2119                        { 0x05, 0x8330 },
2120                        { 0x06, 0x6662 }
2121                };
2122
2123                rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2124        }
2125
2126        mdio_write(ioaddr, 0x1f, 0x0002);
2127        mdio_patch(ioaddr, 0x0d, 0x0300);
2128        mdio_patch(ioaddr, 0x0f, 0x0010);
2129
2130        mdio_write(ioaddr, 0x1f, 0x0002);
2131        mdio_plus_minus(ioaddr, 0x02, 0x0100, 0x0600);
2132        mdio_plus_minus(ioaddr, 0x03, 0x0000, 0xe000);
2133
2134        rtl_phy_write(ioaddr, phy_reg_init_2, ARRAY_SIZE(phy_reg_init_2));
2135}
2136
2137static void rtl8168d_2_hw_phy_config(void __iomem *ioaddr)
2138{
2139        static struct phy_reg phy_reg_init_0[] = {
2140                { 0x1f, 0x0001 },
2141                { 0x06, 0x4064 },
2142                { 0x07, 0x2863 },
2143                { 0x08, 0x059c },
2144                { 0x09, 0x26b4 },
2145                { 0x0a, 0x6a19 },
2146                { 0x0b, 0xdcc8 },
2147                { 0x10, 0xf06d },
2148                { 0x14, 0x7f68 },
2149                { 0x18, 0x7fd9 },
2150                { 0x1c, 0xf0ff },
2151                { 0x1d, 0x3d9c },
2152                { 0x1f, 0x0003 },
2153                { 0x12, 0xf49f },
2154                { 0x13, 0x070b },
2155                { 0x1a, 0x05ad },
2156                { 0x14, 0x94c0 },
2157
2158                { 0x1f, 0x0002 },
2159                { 0x06, 0x5561 },
2160                { 0x1f, 0x0005 },
2161                { 0x05, 0x8332 },
2162                { 0x06, 0x5561 }
2163        };
2164        static struct phy_reg phy_reg_init_1[] = {
2165                { 0x1f, 0x0005 },
2166                { 0x05, 0xffc2 },
2167                { 0x1f, 0x0005 },
2168                { 0x05, 0x8000 },
2169                { 0x06, 0xf8f9 },
2170                { 0x06, 0xfaee },
2171                { 0x06, 0xf8ea },
2172                { 0x06, 0x00ee },
2173                { 0x06, 0xf8eb },
2174                { 0x06, 0x00e2 },
2175                { 0x06, 0xf87c },
2176                { 0x06, 0xe3f8 },
2177                { 0x06, 0x7da5 },
2178                { 0x06, 0x1111 },
2179                { 0x06, 0x12d2 },
2180                { 0x06, 0x40d6 },
2181                { 0x06, 0x4444 },
2182                { 0x06, 0x0281 },
2183                { 0x06, 0xc6d2 },
2184                { 0x06, 0xa0d6 },
2185                { 0x06, 0xaaaa },
2186                { 0x06, 0x0281 },
2187                { 0x06, 0xc6ae },
2188                { 0x06, 0x0fa5 },
2189                { 0x06, 0x4444 },
2190                { 0x06, 0x02ae },
2191                { 0x06, 0x4da5 },
2192                { 0x06, 0xaaaa },
2193                { 0x06, 0x02ae },
2194                { 0x06, 0x47af },
2195                { 0x06, 0x81c2 },
2196                { 0x06, 0xee83 },
2197                { 0x06, 0x4e00 },
2198                { 0x06, 0xee83 },
2199                { 0x06, 0x4d0f },
2200                { 0x06, 0xee83 },
2201                { 0x06, 0x4c0f },
2202                { 0x06, 0xee83 },
2203                { 0x06, 0x4f00 },
2204                { 0x06, 0xee83 },
2205                { 0x06, 0x5100 },
2206                { 0x06, 0xee83 },
2207                { 0x06, 0x4aff },
2208                { 0x06, 0xee83 },
2209                { 0x06, 0x4bff },
2210                { 0x06, 0xe083 },
2211                { 0x06, 0x30e1 },
2212                { 0x06, 0x8331 },
2213                { 0x06, 0x58fe },
2214                { 0x06, 0xe4f8 },
2215                { 0x06, 0x8ae5 },
2216                { 0x06, 0xf88b },
2217                { 0x06, 0xe083 },
2218                { 0x06, 0x32e1 },
2219                { 0x06, 0x8333 },
2220                { 0x06, 0x590f },
2221                { 0x06, 0xe283 },
2222                { 0x06, 0x4d0c },
2223                { 0x06, 0x245a },
2224                { 0x06, 0xf01e },
2225                { 0x06, 0x12e4 },
2226                { 0x06, 0xf88c },
2227                { 0x06, 0xe5f8 },
2228                { 0x06, 0x8daf },
2229                { 0x06, 0x81c2 },
2230                { 0x06, 0xe083 },
2231                { 0x06, 0x4f10 },
2232                { 0x06, 0xe483 },
2233                { 0x06, 0x4fe0 },
2234                { 0x06, 0x834e },
2235                { 0x06, 0x7800 },
2236                { 0x06, 0x9f0a },
2237                { 0x06, 0xe083 },
2238                { 0x06, 0x4fa0 },
2239                { 0x06, 0x10a5 },
2240                { 0x06, 0xee83 },
2241                { 0x06, 0x4e01 },
2242                { 0x06, 0xe083 },
2243                { 0x06, 0x4e78 },
2244                { 0x06, 0x059e },
2245                { 0x06, 0x9ae0 },
2246                { 0x06, 0x834e },
2247                { 0x06, 0x7804 },
2248                { 0x06, 0x9e10 },
2249                { 0x06, 0xe083 },
2250                { 0x06, 0x4e78 },
2251                { 0x06, 0x039e },
2252                { 0x06, 0x0fe0 },
2253                { 0x06, 0x834e },
2254                { 0x06, 0x7801 },
2255                { 0x06, 0x9e05 },
2256                { 0x06, 0xae0c },
2257                { 0x06, 0xaf81 },
2258                { 0x06, 0xa7af },
2259                { 0x06, 0x8152 },
2260                { 0x06, 0xaf81 },
2261                { 0x06, 0x8baf },
2262                { 0x06, 0x81c2 },
2263                { 0x06, 0xee83 },
2264                { 0x06, 0x4800 },
2265                { 0x06, 0xee83 },
2266                { 0x06, 0x4900 },
2267                { 0x06, 0xe083 },
2268                { 0x06, 0x5110 },
2269                { 0x06, 0xe483 },
2270                { 0x06, 0x5158 },
2271                { 0x06, 0x019f },
2272                { 0x06, 0xead0 },
2273                { 0x06, 0x00d1 },
2274                { 0x06, 0x801f },
2275                { 0x06, 0x66e2 },
2276                { 0x06, 0xf8ea },
2277                { 0x06, 0xe3f8 },
2278                { 0x06, 0xeb5a },
2279                { 0x06, 0xf81e },
2280                { 0x06, 0x20e6 },
2281                { 0x06, 0xf8ea },
2282                { 0x06, 0xe5f8 },
2283                { 0x06, 0xebd3 },
2284                { 0x06, 0x02b3 },
2285                { 0x06, 0xfee2 },
2286                { 0x06, 0xf87c },
2287                { 0x06, 0xef32 },
2288                { 0x06, 0x5b80 },
2289                { 0x06, 0xe3f8 },
2290                { 0x06, 0x7d9e },
2291                { 0x06, 0x037d },
2292                { 0x06, 0xffff },
2293                { 0x06, 0x0d58 },
2294                { 0x06, 0x1c55 },
2295                { 0x06, 0x1a65 },
2296                { 0x06, 0x11a1 },
2297                { 0x06, 0x90d3 },
2298                { 0x06, 0xe283 },
2299                { 0x06, 0x48e3 },
2300                { 0x06, 0x8349 },
2301                { 0x06, 0x1b56 },
2302                { 0x06, 0xab08 },
2303                { 0x06, 0xef56 },
2304                { 0x06, 0xe683 },
2305                { 0x06, 0x48e7 },
2306                { 0x06, 0x8349 },
2307                { 0x06, 0x10d1 },
2308                { 0x06, 0x801f },
2309                { 0x06, 0x66a0 },
2310                { 0x06, 0x04b9 },
2311                { 0x06, 0xe283 },
2312                { 0x06, 0x48e3 },
2313                { 0x06, 0x8349 },
2314                { 0x06, 0xef65 },
2315                { 0x06, 0xe283 },
2316                { 0x06, 0x4ae3 },
2317                { 0x06, 0x834b },
2318                { 0x06, 0x1b56 },
2319                { 0x06, 0xaa0e },
2320                { 0x06, 0xef56 },
2321                { 0x06, 0xe683 },
2322                { 0x06, 0x4ae7 },
2323                { 0x06, 0x834b },
2324                { 0x06, 0xe283 },
2325                { 0x06, 0x4de6 },
2326                { 0x06, 0x834c },
2327                { 0x06, 0xe083 },
2328                { 0x06, 0x4da0 },
2329                { 0x06, 0x000c },
2330                { 0x06, 0xaf81 },
2331                { 0x06, 0x8be0 },
2332                { 0x06, 0x834d },
2333                { 0x06, 0x10e4 },
2334                { 0x06, 0x834d },
2335                { 0x06, 0xae04 },
2336                { 0x06, 0x80e4 },
2337                { 0x06, 0x834d },
2338                { 0x06, 0xe083 },
2339                { 0x06, 0x4e78 },
2340                { 0x06, 0x039e },
2341                { 0x06, 0x0be0 },
2342                { 0x06, 0x834e },
2343                { 0x06, 0x7804 },
2344                { 0x06, 0x9e04 },
2345                { 0x06, 0xee83 },
2346                { 0x06, 0x4e02 },
2347                { 0x06, 0xe083 },
2348                { 0x06, 0x32e1 },
2349                { 0x06, 0x8333 },
2350                { 0x06, 0x590f },
2351                { 0x06, 0xe283 },
2352                { 0x06, 0x4d0c },
2353                { 0x06, 0x245a },
2354                { 0x06, 0xf01e },
2355                { 0x06, 0x12e4 },
2356                { 0x06, 0xf88c },
2357                { 0x06, 0xe5f8 },
2358                { 0x06, 0x8de0 },
2359                { 0x06, 0x8330 },
2360                { 0x06, 0xe183 },
2361                { 0x06, 0x3168 },
2362                { 0x06, 0x01e4 },
2363                { 0x06, 0xf88a },
2364                { 0x06, 0xe5f8 },
2365                { 0x06, 0x8bae },
2366                { 0x06, 0x37ee },
2367                { 0x06, 0x834e },
2368                { 0x06, 0x03e0 },
2369                { 0x06, 0x834c },
2370                { 0x06, 0xe183 },
2371                { 0x06, 0x4d1b },
2372                { 0x06, 0x019e },
2373                { 0x06, 0x04aa },
2374                { 0x06, 0xa1ae },
2375                { 0x06, 0xa8ee },
2376                { 0x06, 0x834e },
2377                { 0x06, 0x04ee },
2378                { 0x06, 0x834f },
2379                { 0x06, 0x00ae },
2380                { 0x06, 0xabe0 },
2381                { 0x06, 0x834f },
2382                { 0x06, 0x7803 },
2383                { 0x06, 0x9f14 },
2384                { 0x06, 0xee83 },
2385                { 0x06, 0x4e05 },
2386                { 0x06, 0xd240 },
2387                { 0x06, 0xd655 },
2388                { 0x06, 0x5402 },
2389                { 0x06, 0x81c6 },
2390                { 0x06, 0xd2a0 },
2391                { 0x06, 0xd6ba },
2392                { 0x06, 0x0002 },
2393                { 0x06, 0x81c6 },
2394                { 0x06, 0xfefd },
2395                { 0x06, 0xfc05 },
2396                { 0x06, 0xf8e0 },
2397                { 0x06, 0xf860 },
2398                { 0x06, 0xe1f8 },
2399                { 0x06, 0x6168 },
2400                { 0x06, 0x02e4 },
2401                { 0x06, 0xf860 },
2402                { 0x06, 0xe5f8 },
2403                { 0x06, 0x61e0 },
2404                { 0x06, 0xf848 },
2405                { 0x06, 0xe1f8 },
2406                { 0x06, 0x4958 },
2407                { 0x06, 0x0f1e },
2408                { 0x06, 0x02e4 },
2409                { 0x06, 0xf848 },
2410                { 0x06, 0xe5f8 },
2411                { 0x06, 0x49d0 },
2412                { 0x06, 0x0002 },
2413                { 0x06, 0x820a },
2414                { 0x06, 0xbf83 },
2415                { 0x06, 0x50ef },
2416                { 0x06, 0x46dc },
2417                { 0x06, 0x19dd },
2418                { 0x06, 0xd001 },
2419                { 0x06, 0x0282 },
2420                { 0x06, 0x0a02 },
2421                { 0x06, 0x8226 },
2422                { 0x06, 0xe0f8 },
2423                { 0x06, 0x60e1 },
2424                { 0x06, 0xf861 },
2425                { 0x06, 0x58fd },
2426                { 0x06, 0xe4f8 },
2427                { 0x06, 0x60e5 },
2428                { 0x06, 0xf861 },
2429                { 0x06, 0xfc04 },
2430                { 0x06, 0xf9fa },
2431                { 0x06, 0xfbc6 },
2432                { 0x06, 0xbff8 },
2433                { 0x06, 0x40be },
2434                { 0x06, 0x8350 },
2435                { 0x06, 0xa001 },
2436                { 0x06, 0x0107 },
2437                { 0x06, 0x1b89 },
2438                { 0x06, 0xcfd2 },
2439                { 0x06, 0x08eb },
2440                { 0x06, 0xdb19 },
2441                { 0x06, 0xb2fb },
2442                { 0x06, 0xfffe },
2443                { 0x06, 0xfd04 },
2444                { 0x06, 0xf8e0 },
2445                { 0x06, 0xf848 },
2446                { 0x06, 0xe1f8 },
2447                { 0x06, 0x4968 },
2448                { 0x06, 0x08e4 },
2449                { 0x06, 0xf848 },
2450                { 0x06, 0xe5f8 },
2451                { 0x06, 0x4958 },
2452                { 0x06, 0xf7e4 },
2453                { 0x06, 0xf848 },
2454                { 0x06, 0xe5f8 },
2455                { 0x06, 0x49fc },
2456                { 0x06, 0x044d },
2457                { 0x06, 0x2000 },
2458                { 0x06, 0x024e },
2459                { 0x06, 0x2200 },
2460                { 0x06, 0x024d },
2461                { 0x06, 0xdfff },
2462                { 0x06, 0x014e },
2463                { 0x06, 0xddff },
2464                { 0x06, 0x0100 },
2465                { 0x05, 0x83d8 },
2466                { 0x06, 0x8000 },
2467                { 0x03, 0xdc00 },
2468                { 0x05, 0xfff6 },
2469                { 0x06, 0x00fc },
2470                { 0x1f, 0x0000 },
2471
2472                { 0x1f, 0x0000 },
2473                { 0x0d, 0xf880 },
2474                { 0x1f, 0x0000 }
2475        };
2476
2477        rtl_phy_write(ioaddr, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2478
2479        if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2480                struct phy_reg phy_reg_init[] = {
2481                        { 0x1f, 0x0002 },
2482                        { 0x05, 0x669a },
2483                        { 0x1f, 0x0005 },
2484                        { 0x05, 0x8330 },
2485                        { 0x06, 0x669a },
2486
2487                        { 0x1f, 0x0002 }
2488                };
2489                int val;
2490
2491                rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2492
2493                val = mdio_read(ioaddr, 0x0d);
2494                if ((val & 0x00ff) != 0x006c) {
2495                        u32 set[] = {
2496                                0x0065, 0x0066, 0x0067, 0x0068,
2497                                0x0069, 0x006a, 0x006b, 0x006c
2498                        };
2499                        int i;
2500
2501                        mdio_write(ioaddr, 0x1f, 0x0002);
2502
2503                        val &= 0xff00;
2504                        for (i = 0; i < ARRAY_SIZE(set); i++)
2505                                mdio_write(ioaddr, 0x0d, val | set[i]);
2506                }
2507        } else {
2508                struct phy_reg phy_reg_init[] = {
2509                        { 0x1f, 0x0002 },
2510                        { 0x05, 0x2642 },
2511                        { 0x1f, 0x0005 },
2512                        { 0x05, 0x8330 },
2513                        { 0x06, 0x2642 }
2514                };
2515
2516                rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2517        }
2518
2519        mdio_write(ioaddr, 0x1f, 0x0002);
2520        mdio_plus_minus(ioaddr, 0x02, 0x0100, 0x0600);
2521        mdio_plus_minus(ioaddr, 0x03, 0x0000, 0xe000);
2522
2523        mdio_write(ioaddr, 0x1f, 0x0001);
2524        mdio_write(ioaddr, 0x17, 0x0cc0);
2525
2526        mdio_write(ioaddr, 0x1f, 0x0002);
2527        mdio_patch(ioaddr, 0x0f, 0x0017);
2528
2529        rtl_phy_write(ioaddr, phy_reg_init_1, ARRAY_SIZE(phy_reg_init_1));
2530}
2531
2532static void rtl8168d_3_hw_phy_config(void __iomem *ioaddr)
2533{
2534        struct phy_reg phy_reg_init[] = {
2535                { 0x1f, 0x0002 },
2536                { 0x10, 0x0008 },
2537                { 0x0d, 0x006c },
2538
2539                { 0x1f, 0x0000 },
2540                { 0x0d, 0xf880 },
2541
2542                { 0x1f, 0x0001 },
2543                { 0x17, 0x0cc0 },
2544
2545                { 0x1f, 0x0001 },
2546                { 0x0b, 0xa4d8 },
2547                { 0x09, 0x281c },
2548                { 0x07, 0x2883 },
2549                { 0x0a, 0x6b35 },
2550                { 0x1d, 0x3da4 },
2551                { 0x1c, 0xeffd },
2552                { 0x14, 0x7f52 },
2553                { 0x18, 0x7fc6 },
2554                { 0x08, 0x0601 },
2555                { 0x06, 0x4063 },
2556                { 0x10, 0xf074 },
2557                { 0x1f, 0x0003 },
2558                { 0x13, 0x0789 },
2559                { 0x12, 0xf4bd },
2560                { 0x1a, 0x04fd },
2561                { 0x14, 0x84b0 },
2562                { 0x1f, 0x0000 },
2563                { 0x00, 0x9200 },
2564
2565                { 0x1f, 0x0005 },
2566                { 0x01, 0x0340 },
2567                { 0x1f, 0x0001 },
2568                { 0x04, 0x4000 },
2569                { 0x03, 0x1d21 },
2570                { 0x02, 0x0c32 },
2571                { 0x01, 0x0200 },
2572                { 0x00, 0x5554 },
2573                { 0x04, 0x4800 },
2574                { 0x04, 0x4000 },
2575                { 0x04, 0xf000 },
2576                { 0x03, 0xdf01 },
2577                { 0x02, 0xdf20 },
2578                { 0x01, 0x101a },
2579                { 0x00, 0xa0ff },
2580                { 0x04, 0xf800 },
2581                { 0x04, 0xf000 },
2582                { 0x1f, 0x0000 },
2583
2584                { 0x1f, 0x0007 },
2585                { 0x1e, 0x0023 },
2586                { 0x16, 0x0000 },
2587                { 0x1f, 0x0000 }
2588        };
2589
2590        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2591}
2592
2593static void rtl8102e_hw_phy_config(void __iomem *ioaddr)
2594{
2595        struct phy_reg phy_reg_init[] = {
2596                { 0x1f, 0x0003 },
2597                { 0x08, 0x441d },
2598                { 0x01, 0x9100 },
2599                { 0x1f, 0x0000 }
2600        };
2601
2602        mdio_write(ioaddr, 0x1f, 0x0000);
2603        mdio_patch(ioaddr, 0x11, 1 << 12);
2604        mdio_patch(ioaddr, 0x19, 1 << 13);
2605        mdio_patch(ioaddr, 0x10, 1 << 15);
2606
2607        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2608}
2609
2610static void rtl_hw_phy_config(struct net_device *dev)
2611{
2612        struct rtl8169_private *tp = netdev_priv(dev);
2613        void __iomem *ioaddr = tp->mmio_addr;
2614
2615        rtl8169_print_mac_version(tp);
2616
2617        switch (tp->mac_version) {
2618        case RTL_GIGA_MAC_VER_01:
2619                break;
2620        case RTL_GIGA_MAC_VER_02:
2621        case RTL_GIGA_MAC_VER_03:
2622                rtl8169s_hw_phy_config(ioaddr);
2623                break;
2624        case RTL_GIGA_MAC_VER_04:
2625                rtl8169sb_hw_phy_config(ioaddr);
2626                break;
2627        case RTL_GIGA_MAC_VER_05:
2628                rtl8169scd_hw_phy_config(tp, ioaddr);
2629                break;
2630        case RTL_GIGA_MAC_VER_06:
2631                rtl8169sce_hw_phy_config(ioaddr);
2632                break;
2633        case RTL_GIGA_MAC_VER_07:
2634        case RTL_GIGA_MAC_VER_08:
2635        case RTL_GIGA_MAC_VER_09:
2636                rtl8102e_hw_phy_config(ioaddr);
2637                break;
2638        case RTL_GIGA_MAC_VER_11:
2639                rtl8168bb_hw_phy_config(ioaddr);
2640                break;
2641        case RTL_GIGA_MAC_VER_12:
2642                rtl8168bef_hw_phy_config(ioaddr);
2643                break;
2644        case RTL_GIGA_MAC_VER_17:
2645                rtl8168bef_hw_phy_config(ioaddr);
2646                break;
2647        case RTL_GIGA_MAC_VER_18:
2648                rtl8168cp_1_hw_phy_config(ioaddr);
2649                break;
2650        case RTL_GIGA_MAC_VER_19:
2651                rtl8168c_1_hw_phy_config(ioaddr);
2652                break;
2653        case RTL_GIGA_MAC_VER_20:
2654                rtl8168c_2_hw_phy_config(ioaddr);
2655                break;
2656        case RTL_GIGA_MAC_VER_21:
2657                rtl8168c_3_hw_phy_config(ioaddr);
2658                break;
2659        case RTL_GIGA_MAC_VER_22:
2660                rtl8168c_4_hw_phy_config(ioaddr);
2661                break;
2662        case RTL_GIGA_MAC_VER_23:
2663        case RTL_GIGA_MAC_VER_24:
2664                rtl8168cp_2_hw_phy_config(ioaddr);
2665                break;
2666        case RTL_GIGA_MAC_VER_25:
2667                rtl8168d_1_hw_phy_config(ioaddr);
2668                break;
2669        case RTL_GIGA_MAC_VER_26:
2670                rtl8168d_2_hw_phy_config(ioaddr);
2671                break;
2672        case RTL_GIGA_MAC_VER_27:
2673                rtl8168d_3_hw_phy_config(ioaddr);
2674                break;
2675
2676        default:
2677                break;
2678        }
2679}
2680
2681static void rtl8169_phy_timer(unsigned long __opaque)
2682{
2683        struct net_device *dev = (struct net_device *)__opaque;
2684        struct rtl8169_private *tp = netdev_priv(dev);
2685        struct timer_list *timer = &tp->timer;
2686        void __iomem *ioaddr = tp->mmio_addr;
2687        unsigned long timeout = RTL8169_PHY_TIMEOUT;
2688
2689        assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
2690
2691        if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
2692                return;
2693
2694        spin_lock_irq(&tp->lock);
2695
2696        if (tp->phy_reset_pending(ioaddr)) {
2697                /*
2698                 * A busy loop could burn quite a few cycles on nowadays CPU.
2699                 * Let's delay the execution of the timer for a few ticks.
2700                 */
2701                timeout = HZ/10;
2702                goto out_mod_timer;
2703        }
2704
2705        if (tp->link_ok(ioaddr))
2706                goto out_unlock;
2707
2708        if (netif_msg_link(tp))
2709                printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name);
2710
2711        tp->phy_reset_enable(ioaddr);
2712
2713out_mod_timer:
2714        mod_timer(timer, jiffies + timeout);
2715out_unlock:
2716        spin_unlock_irq(&tp->lock);
2717}
2718
2719static inline void rtl8169_delete_timer(struct net_device *dev)
2720{
2721        struct rtl8169_private *tp = netdev_priv(dev);
2722        struct timer_list *timer = &tp->timer;
2723
2724        if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2725                return;
2726
2727        del_timer_sync(timer);
2728}
2729
2730static inline void rtl8169_request_timer(struct net_device *dev)
2731{
2732        struct rtl8169_private *tp = netdev_priv(dev);
2733        struct timer_list *timer = &tp->timer;
2734
2735        if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2736                return;
2737
2738        mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
2739}
2740
2741#ifdef CONFIG_NET_POLL_CONTROLLER
2742/*
2743 * Polling 'interrupt' - used by things like netconsole to send skbs
2744 * without having to re-enable interrupts. It's not called while
2745 * the interrupt routine is executing.
2746 */
2747static void rtl8169_netpoll(struct net_device *dev)
2748{
2749        struct rtl8169_private *tp = netdev_priv(dev);
2750        struct pci_dev *pdev = tp->pci_dev;
2751
2752        disable_irq(pdev->irq);
2753        rtl8169_interrupt(pdev->irq, dev);
2754        enable_irq(pdev->irq);
2755}
2756#endif
2757
2758static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
2759                                  void __iomem *ioaddr)
2760{
2761        iounmap(ioaddr);
2762        pci_release_regions(pdev);
2763        pci_disable_device(pdev);
2764        free_netdev(dev);
2765}
2766
2767static void rtl8169_phy_reset(struct net_device *dev,
2768                              struct rtl8169_private *tp)
2769{
2770        void __iomem *ioaddr = tp->mmio_addr;
2771        unsigned int i;
2772
2773        tp->phy_reset_enable(ioaddr);
2774        for (i = 0; i < 100; i++) {
2775                if (!tp->phy_reset_pending(ioaddr))
2776                        return;
2777                msleep(1);
2778        }
2779        if (netif_msg_link(tp))
2780                printk(KERN_ERR "%s: PHY reset failed.\n", dev->name);
2781}
2782
2783static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
2784{
2785        void __iomem *ioaddr = tp->mmio_addr;
2786
2787        rtl_hw_phy_config(dev);
2788
2789        if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
2790                dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2791                RTL_W8(0x82, 0x01);
2792        }
2793
2794        pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
2795
2796        if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
2797                pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
2798
2799        if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
2800                dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2801                RTL_W8(0x82, 0x01);
2802                dprintk("Set PHY Reg 0x0bh = 0x00h\n");
2803                mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0
2804        }
2805
2806        rtl8169_phy_reset(dev, tp);
2807
2808        /*
2809         * rtl8169_set_speed_xmii takes good care of the Fast Ethernet
2810         * only 8101. Don't panic.
2811         */
2812        rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
2813
2814        if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp))
2815                printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);
2816}
2817
2818static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
2819{
2820        void __iomem *ioaddr = tp->mmio_addr;
2821        u32 high;
2822        u32 low;
2823
2824        low  = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
2825        high = addr[4] | (addr[5] << 8);
2826
2827        spin_lock_irq(&tp->lock);
2828
2829        RTL_W8(Cfg9346, Cfg9346_Unlock);
2830        RTL_W32(MAC0, low);
2831        RTL_W32(MAC4, high);
2832        RTL_W8(Cfg9346, Cfg9346_Lock);
2833
2834        spin_unlock_irq(&tp->lock);
2835}
2836
2837static int rtl_set_mac_address(struct net_device *dev, void *p)
2838{
2839        struct rtl8169_private *tp = netdev_priv(dev);
2840        struct sockaddr *addr = p;
2841
2842        if (!is_valid_ether_addr(addr->sa_data))
2843                return -EADDRNOTAVAIL;
2844
2845        memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
2846
2847        rtl_rar_set(tp, dev->dev_addr);
2848
2849        return 0;
2850}
2851
2852static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2853{
2854        struct rtl8169_private *tp = netdev_priv(dev);
2855        struct mii_ioctl_data *data = if_mii(ifr);
2856
2857        return netif_running(dev) ? tp->do_ioctl(tp, data, cmd) : -ENODEV;
2858}
2859
2860static int rtl_xmii_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2861{
2862        switch (cmd) {
2863        case SIOCGMIIPHY:
2864                data->phy_id = 32; /* Internal PHY */
2865                return 0;
2866
2867        case SIOCGMIIREG:
2868                data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f);
2869                return 0;
2870
2871        case SIOCSMIIREG:
2872                mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in);
2873                return 0;
2874        }
2875        return -EOPNOTSUPP;
2876}
2877
2878static int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2879{
2880        return -EOPNOTSUPP;
2881}
2882
2883static const struct rtl_cfg_info {
2884        void (*hw_start)(struct net_device *);
2885        unsigned int region;
2886        unsigned int align;
2887        u16 intr_event;
2888        u16 napi_event;
2889        unsigned features;
2890        u8 default_ver;
2891} rtl_cfg_infos [] = {
2892        [RTL_CFG_0] = {
2893                .hw_start       = rtl_hw_start_8169,
2894                .region         = 1,
2895                .align          = 0,
2896                .intr_event     = SYSErr | LinkChg | RxOverflow |
2897                                  RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2898                .napi_event     = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2899                .features       = RTL_FEATURE_GMII,
2900                .default_ver    = RTL_GIGA_MAC_VER_01,
2901        },
2902        [RTL_CFG_1] = {
2903                .hw_start       = rtl_hw_start_8168,
2904                .region         = 2,
2905                .align          = 8,
2906                .intr_event     = SYSErr | LinkChg | RxOverflow |
2907                                  TxErr | TxOK | RxOK | RxErr,
2908                .napi_event     = TxErr | TxOK | RxOK | RxOverflow,
2909                .features       = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
2910                .default_ver    = RTL_GIGA_MAC_VER_11,
2911        },
2912        [RTL_CFG_2] = {
2913                .hw_start       = rtl_hw_start_8101,
2914                .region         = 2,
2915                .align          = 8,
2916                .intr_event     = SYSErr | LinkChg | RxOverflow | PCSTimeout |
2917                                  RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2918                .napi_event     = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2919                .features       = RTL_FEATURE_MSI,
2920                .default_ver    = RTL_GIGA_MAC_VER_13,
2921        }
2922};
2923
2924/* Cfg9346_Unlock assumed. */
2925static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
2926                            const struct rtl_cfg_info *cfg)
2927{
2928        unsigned msi = 0;
2929        u8 cfg2;
2930
2931        cfg2 = RTL_R8(Config2) & ~MSIEnable;
2932        if (cfg->features & RTL_FEATURE_MSI) {
2933                if (pci_enable_msi(pdev)) {
2934                        dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
2935                } else {
2936                        cfg2 |= MSIEnable;
2937                        msi = RTL_FEATURE_MSI;
2938                }
2939        }
2940        RTL_W8(Config2, cfg2);
2941        return msi;
2942}
2943
2944static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
2945{
2946        if (tp->features & RTL_FEATURE_MSI) {
2947                pci_disable_msi(pdev);
2948                tp->features &= ~RTL_FEATURE_MSI;
2949        }
2950}
2951
2952static const struct net_device_ops rtl8169_netdev_ops = {
2953        .ndo_open               = rtl8169_open,
2954        .ndo_stop               = rtl8169_close,
2955        .ndo_get_stats          = rtl8169_get_stats,
2956        .ndo_start_xmit         = rtl8169_start_xmit,
2957        .ndo_tx_timeout         = rtl8169_tx_timeout,
2958        .ndo_validate_addr      = eth_validate_addr,
2959        .ndo_change_mtu         = rtl8169_change_mtu,
2960        .ndo_set_mac_address    = rtl_set_mac_address,
2961        .ndo_do_ioctl           = rtl8169_ioctl,
2962        .ndo_set_multicast_list = rtl_set_rx_mode,
2963#ifdef CONFIG_R8169_VLAN
2964        .ndo_vlan_rx_register   = rtl8169_vlan_rx_register,
2965#endif
2966#ifdef CONFIG_NET_POLL_CONTROLLER
2967        .ndo_poll_controller    = rtl8169_netpoll,
2968#endif
2969
2970};
2971
2972static int __devinit
2973rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
2974{
2975        const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
2976        const unsigned int region = cfg->region;
2977        struct rtl8169_private *tp;
2978        struct mii_if_info *mii;
2979        struct net_device *dev;
2980        void __iomem *ioaddr;
2981        unsigned int i;
2982        int rc;
2983
2984        if (netif_msg_drv(&debug)) {
2985                printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
2986                       MODULENAME, RTL8169_VERSION);
2987        }
2988
2989        dev = alloc_etherdev(sizeof (*tp));
2990        if (!dev) {
2991                if (netif_msg_drv(&debug))
2992                        dev_err(&pdev->dev, "unable to alloc new ethernet\n");
2993                rc = -ENOMEM;
2994                goto out;
2995        }
2996
2997        SET_NETDEV_DEV(dev, &pdev->dev);
2998        dev->netdev_ops = &rtl8169_netdev_ops;
2999        tp = netdev_priv(dev);
3000        tp->dev = dev;
3001        tp->pci_dev = pdev;
3002        tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
3003
3004        mii = &tp->mii;
3005        mii->dev = dev;
3006        mii->mdio_read = rtl_mdio_read;
3007        mii->mdio_write = rtl_mdio_write;
3008        mii->phy_id_mask = 0x1f;
3009        mii->reg_num_mask = 0x1f;
3010        mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII);
3011
3012        /* enable device (incl. PCI PM wakeup and hotplug setup) */
3013        rc = pci_enable_device(pdev);
3014        if (rc < 0) {
3015                if (netif_msg_probe(tp))
3016                        dev_err(&pdev->dev, "enable failure\n");
3017                goto err_out_free_dev_1;
3018        }
3019
3020        rc = pci_set_mwi(pdev);
3021        if (rc < 0)
3022                goto err_out_disable_2;
3023
3024        /* make sure PCI base addr 1 is MMIO */
3025        if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
3026                if (netif_msg_probe(tp)) {
3027                        dev_err(&pdev->dev,
3028                                "region #%d not an MMIO resource, aborting\n",
3029                                region);
3030                }
3031                rc = -ENODEV;
3032                goto err_out_mwi_3;
3033        }
3034
3035        /* check for weird/broken PCI region reporting */
3036        if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
3037                if (netif_msg_probe(tp)) {
3038                        dev_err(&pdev->dev,
3039                                "Invalid PCI region size(s), aborting\n");
3040                }
3041                rc = -ENODEV;
3042                goto err_out_mwi_3;
3043        }
3044
3045        rc = pci_request_regions(pdev, MODULENAME);
3046        if (rc < 0) {
3047                if (netif_msg_probe(tp))
3048                        dev_err(&pdev->dev, "could not request regions.\n");
3049                goto err_out_mwi_3;
3050        }
3051
3052        tp->cp_cmd = PCIMulRW | RxChkSum;
3053
3054        if ((sizeof(dma_addr_t) > 4) &&
3055            !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && use_dac) {
3056                tp->cp_cmd |= PCIDAC;
3057                dev->features |= NETIF_F_HIGHDMA;
3058        } else {
3059                rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3060                if (rc < 0) {
3061                        if (netif_msg_probe(tp)) {
3062                                dev_err(&pdev->dev,
3063                                        "DMA configuration failed.\n");
3064                        }
3065                        goto err_out_free_res_4;
3066                }
3067        }
3068
3069        /* ioremap MMIO region */
3070        ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
3071        if (!ioaddr) {
3072                if (netif_msg_probe(tp))
3073                        dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
3074                rc = -EIO;
3075                goto err_out_free_res_4;
3076        }
3077
3078        tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
3079        if (!tp->pcie_cap && netif_msg_probe(tp))
3080                dev_info(&pdev->dev, "no PCI Express capability\n");
3081
3082        RTL_W16(IntrMask, 0x0000);
3083
3084        /* Soft reset the chip. */
3085        RTL_W8(ChipCmd, CmdReset);
3086
3087        /* Check that the chip has finished the reset. */
3088        for (i = 0; i < 100; i++) {
3089                if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3090                        break;
3091                msleep_interruptible(1);
3092        }
3093
3094        RTL_W16(IntrStatus, 0xffff);
3095
3096        pci_set_master(pdev);
3097
3098        /* Identify chip attached to board */
3099        rtl8169_get_mac_version(tp, ioaddr);
3100
3101        /* Use appropriate default if unknown */
3102        if (tp->mac_version == RTL_GIGA_MAC_NONE) {
3103                if (netif_msg_probe(tp)) {
3104                        dev_notice(&pdev->dev,
3105                                   "unknown MAC, using family default\n");
3106                }
3107                tp->mac_version = cfg->default_ver;
3108        }
3109
3110        rtl8169_print_mac_version(tp);
3111
3112        for (i = 0; i < ARRAY_SIZE(rtl_chip_info); i++) {
3113                if (tp->mac_version == rtl_chip_info[i].mac_version)
3114                        break;
3115        }
3116        if (i == ARRAY_SIZE(rtl_chip_info)) {
3117                dev_err(&pdev->dev,
3118                        "driver bug, MAC version not found in rtl_chip_info\n");
3119                goto err_out_msi_5;
3120        }
3121        tp->chipset = i;
3122
3123        RTL_W8(Cfg9346, Cfg9346_Unlock);
3124        RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
3125        RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
3126        if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
3127                tp->features |= RTL_FEATURE_WOL;
3128        if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
3129                tp->features |= RTL_FEATURE_WOL;
3130        tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
3131        RTL_W8(Cfg9346, Cfg9346_Lock);
3132
3133        if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
3134            (RTL_R8(PHYstatus) & TBI_Enable)) {
3135                tp->set_speed = rtl8169_set_speed_tbi;
3136                tp->get_settings = rtl8169_gset_tbi;
3137                tp->phy_reset_enable = rtl8169_tbi_reset_enable;
3138                tp->phy_reset_pending = rtl8169_tbi_reset_pending;
3139                tp->link_ok = rtl8169_tbi_link_ok;
3140                tp->do_ioctl = rtl_tbi_ioctl;
3141
3142                tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
3143        } else {
3144                tp->set_speed = rtl8169_set_speed_xmii;
3145                tp->get_settings = rtl8169_gset_xmii;
3146                tp->phy_reset_enable = rtl8169_xmii_reset_enable;
3147                tp->phy_reset_pending = rtl8169_xmii_reset_pending;
3148                tp->link_ok = rtl8169_xmii_link_ok;
3149                tp->do_ioctl = rtl_xmii_ioctl;
3150        }
3151
3152        spin_lock_init(&tp->lock);
3153
3154        tp->mmio_addr = ioaddr;
3155
3156        /* Get MAC address */
3157        for (i = 0; i < MAC_ADDR_LEN; i++)
3158                dev->dev_addr[i] = RTL_R8(MAC0 + i);
3159        memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3160
3161        SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
3162        dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
3163        dev->irq = pdev->irq;
3164        dev->base_addr = (unsigned long) ioaddr;
3165
3166        netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
3167
3168#ifdef CONFIG_R8169_VLAN
3169        dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
3170#endif
3171
3172        tp->intr_mask = 0xffff;
3173        tp->align = cfg->align;
3174        tp->hw_start = cfg->hw_start;
3175        tp->intr_event = cfg->intr_event;
3176        tp->napi_event = cfg->napi_event;
3177
3178        init_timer(&tp->timer);
3179        tp->timer.data = (unsigned long) dev;
3180        tp->timer.function = rtl8169_phy_timer;
3181
3182        rc = register_netdev(dev);
3183        if (rc < 0)
3184                goto err_out_msi_5;
3185
3186        pci_set_drvdata(pdev, dev);
3187
3188        if (netif_msg_probe(tp)) {
3189                u32 xid = RTL_R32(TxConfig) & 0x9cf0f8ff;
3190
3191                printk(KERN_INFO "%s: %s at 0x%lx, "
3192                       "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
3193                       "XID %08x IRQ %d\n",
3194                       dev->name,
3195                       rtl_chip_info[tp->chipset].name,
3196                       dev->base_addr,
3197                       dev->dev_addr[0], dev->dev_addr[1],
3198                       dev->dev_addr[2], dev->dev_addr[3],
3199                       dev->dev_addr[4], dev->dev_addr[5], xid, dev->irq);
3200        }
3201
3202        rtl8169_init_phy(dev, tp);
3203
3204        /*
3205         * Pretend we are using VLANs; This bypasses a nasty bug where
3206         * Interrupts stop flowing on high load on 8110SCd controllers.
3207         */
3208        if (tp->mac_version == RTL_GIGA_MAC_VER_05)
3209                RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | RxVlan);
3210
3211        device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
3212
3213out:
3214        return rc;
3215
3216err_out_msi_5:
3217        rtl_disable_msi(pdev, tp);
3218        iounmap(ioaddr);
3219err_out_free_res_4:
3220        pci_release_regions(pdev);
3221err_out_mwi_3:
3222        pci_clear_mwi(pdev);
3223err_out_disable_2:
3224        pci_disable_device(pdev);
3225err_out_free_dev_1:
3226        free_netdev(dev);
3227        goto out;
3228}
3229
3230static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
3231{
3232        struct net_device *dev = pci_get_drvdata(pdev);
3233        struct rtl8169_private *tp = netdev_priv(dev);
3234
3235        flush_scheduled_work();
3236
3237        unregister_netdev(dev);
3238
3239        /* restore original MAC address */
3240        rtl_rar_set(tp, dev->perm_addr);
3241
3242        rtl_disable_msi(pdev, tp);
3243        rtl8169_release_board(pdev, dev, tp->mmio_addr);
3244        pci_set_drvdata(pdev, NULL);
3245}
3246
3247static void rtl8169_set_rxbufsize(struct rtl8169_private *tp,
3248                                  struct net_device *dev)
3249{
3250        unsigned int max_frame = dev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
3251
3252        tp->rx_buf_sz = (max_frame > RX_BUF_SIZE) ? max_frame : RX_BUF_SIZE;
3253}
3254
3255static int rtl8169_open(struct net_device *dev)
3256{
3257        struct rtl8169_private *tp = netdev_priv(dev);
3258        struct pci_dev *pdev = tp->pci_dev;
3259        int retval = -ENOMEM;
3260
3261
3262        rtl8169_set_rxbufsize(tp, dev);
3263
3264        /*
3265         * Rx and Tx desscriptors needs 256 bytes alignment.
3266         * pci_alloc_consistent provides more.
3267         */
3268        tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES,
3269                                               &tp->TxPhyAddr);
3270        if (!tp->TxDescArray)
3271                goto out;
3272
3273        tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES,
3274                                               &tp->RxPhyAddr);
3275        if (!tp->RxDescArray)
3276                goto err_free_tx_0;
3277
3278        retval = rtl8169_init_ring(dev);
3279        if (retval < 0)
3280                goto err_free_rx_1;
3281
3282        INIT_DELAYED_WORK(&tp->task, NULL);
3283
3284        smp_mb();
3285
3286        retval = request_irq(dev->irq, rtl8169_interrupt,
3287                             (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
3288                             dev->name, dev);
3289        if (retval < 0)
3290                goto err_release_ring_2;
3291
3292        napi_enable(&tp->napi);
3293
3294        rtl_hw_start(dev);
3295
3296        rtl8169_request_timer(dev);
3297
3298        rtl8169_check_link_status(dev, tp, tp->mmio_addr);
3299out:
3300        return retval;
3301
3302err_release_ring_2:
3303        rtl8169_rx_clear(tp);
3304err_free_rx_1:
3305        pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
3306                            tp->RxPhyAddr);
3307err_free_tx_0:
3308        pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
3309                            tp->TxPhyAddr);
3310        goto out;
3311}
3312
3313static void rtl8169_hw_reset(void __iomem *ioaddr)
3314{
3315        /* Disable interrupts */
3316        rtl8169_irq_mask_and_ack(ioaddr);
3317
3318        /* Reset the chipset */
3319        RTL_W8(ChipCmd, CmdReset);
3320
3321        /* PCI commit */
3322        RTL_R8(ChipCmd);
3323}
3324
3325static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
3326{
3327        void __iomem *ioaddr = tp->mmio_addr;
3328        u32 cfg = rtl8169_rx_config;
3329
3330        cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
3331        RTL_W32(RxConfig, cfg);
3332
3333        /* Set DMA burst size and Interframe Gap Time */
3334        RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3335                (InterFrameGap << TxInterFrameGapShift));
3336}
3337
3338static void rtl_hw_start(struct net_device *dev)
3339{
3340        struct rtl8169_private *tp = netdev_priv(dev);
3341        void __iomem *ioaddr = tp->mmio_addr;
3342        unsigned int i;
3343
3344        /* Soft reset the chip. */
3345        RTL_W8(ChipCmd, CmdReset);
3346
3347        /* Check that the chip has finished the reset. */
3348        for (i = 0; i < 100; i++) {
3349                if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3350                        break;
3351                msleep_interruptible(1);
3352        }
3353
3354        tp->hw_start(dev);
3355
3356        netif_start_queue(dev);
3357}
3358
3359
3360static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
3361                                         void __iomem *ioaddr)
3362{
3363        /*
3364         * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
3365         * register to be written before TxDescAddrLow to work.
3366         * Switching from MMIO to I/O access fixes the issue as well.
3367         */
3368        RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
3369        RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
3370        RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
3371        RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
3372}
3373
3374static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
3375{
3376        u16 cmd;
3377
3378        cmd = RTL_R16(CPlusCmd);
3379        RTL_W16(CPlusCmd, cmd);
3380        return cmd;
3381}
3382
3383static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz)
3384{
3385        /* Low hurts. Let's disable the filtering. */
3386        RTL_W16(RxMaxSize, rx_buf_sz + 1);
3387}
3388
3389static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
3390{
3391        struct {
3392                u32 mac_version;
3393                u32 clk;
3394                u32 val;
3395        } cfg2_info [] = {
3396                { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
3397                { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
3398                { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
3399                { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
3400        }, *p = cfg2_info;
3401        unsigned int i;
3402        u32 clk;
3403
3404        clk = RTL_R8(Config2) & PCI_Clock_66MHz;
3405        for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) {
3406                if ((p->mac_version == mac_version) && (p->clk == clk)) {
3407                        RTL_W32(0x7c, p->val);
3408                        break;
3409                }
3410        }
3411}
3412
3413static void rtl_hw_start_8169(struct net_device *dev)
3414{
3415        struct rtl8169_private *tp = netdev_priv(dev);
3416        void __iomem *ioaddr = tp->mmio_addr;
3417        struct pci_dev *pdev = tp->pci_dev;
3418
3419        if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
3420                RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
3421                pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
3422        }
3423
3424        RTL_W8(Cfg9346, Cfg9346_Unlock);
3425        if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3426            (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3427            (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3428            (tp->mac_version == RTL_GIGA_MAC_VER_04))
3429                RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3430
3431        RTL_W8(EarlyTxThres, EarlyTxThld);
3432
3433        rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3434
3435        if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3436            (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3437            (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3438            (tp->mac_version == RTL_GIGA_MAC_VER_04))
3439                rtl_set_rx_tx_config_registers(tp);
3440
3441        tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
3442
3443        if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3444            (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
3445                dprintk("Set MAC Reg C+CR Offset 0xE0. "
3446                        "Bit-3 and bit-14 MUST be 1\n");
3447                tp->cp_cmd |= (1 << 14);
3448        }
3449
3450        RTL_W16(CPlusCmd, tp->cp_cmd);
3451
3452        rtl8169_set_magic_reg(ioaddr, tp->mac_version);
3453
3454        /*
3455         * Undocumented corner. Supposedly:
3456         * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
3457         */
3458        RTL_W16(IntrMitigate, 0x0000);
3459
3460        rtl_set_rx_tx_desc_registers(tp, ioaddr);
3461
3462        if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
3463            (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
3464            (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
3465            (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
3466                RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3467                rtl_set_rx_tx_config_registers(tp);
3468        }
3469
3470        RTL_W8(Cfg9346, Cfg9346_Lock);
3471
3472        /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
3473        RTL_R8(IntrMask);
3474
3475        RTL_W32(RxMissed, 0);
3476
3477        rtl_set_rx_mode(dev);
3478
3479        /* no early-rx interrupts */
3480        RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3481
3482        /* Enable all known interrupts by setting the interrupt mask. */
3483        RTL_W16(IntrMask, tp->intr_event);
3484}
3485
3486static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
3487{
3488        struct net_device *dev = pci_get_drvdata(pdev);
3489        struct rtl8169_private *tp = netdev_priv(dev);
3490        int cap = tp->pcie_cap;
3491
3492        if (cap) {
3493                u16 ctl;
3494
3495                pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
3496                ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
3497                pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
3498        }
3499}
3500
3501static void rtl_csi_access_enable(void __iomem *ioaddr)
3502{
3503        u32 csi;
3504
3505        csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff;
3506        rtl_csi_write(ioaddr, 0x070c, csi | 0x27000000);
3507}
3508
3509struct ephy_info {
3510        unsigned int offset;
3511        u16 mask;
3512        u16 bits;
3513};
3514
3515static void rtl_ephy_init(void __iomem *ioaddr, struct ephy_info *e, int len)
3516{
3517        u16 w;
3518
3519        while (len-- > 0) {
3520                w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits;
3521                rtl_ephy_write(ioaddr, e->offset, w);
3522                e++;
3523        }
3524}
3525
3526static void rtl_disable_clock_request(struct pci_dev *pdev)
3527{
3528        struct net_device *dev = pci_get_drvdata(pdev);
3529        struct rtl8169_private *tp = netdev_priv(dev);
3530        int cap = tp->pcie_cap;
3531
3532        if (cap) {
3533                u16 ctl;
3534
3535                pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
3536                ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
3537                pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
3538        }
3539}
3540
3541#define R8168_CPCMD_QUIRK_MASK (\
3542        EnableBist | \
3543        Mac_dbgo_oe | \
3544        Force_half_dup | \
3545        Force_rxflow_en | \
3546        Force_txflow_en | \
3547        Cxpl_dbg_sel | \
3548        ASF | \
3549        PktCntrDisable | \
3550        Mac_dbgo_sel)
3551
3552static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev)
3553{
3554        RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3555
3556        RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3557
3558        rtl_tx_performance_tweak(pdev,
3559                (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
3560}
3561
3562static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
3563{
3564        rtl_hw_start_8168bb(ioaddr, pdev);
3565
3566        RTL_W8(EarlyTxThres, EarlyTxThld);
3567
3568        RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
3569}
3570
3571static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
3572{
3573        RTL_W8(Config1, RTL_R8(Config1) | Speed_down);
3574
3575        RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3576
3577        rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3578
3579        rtl_disable_clock_request(pdev);
3580
3581        RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3582}
3583
3584static void rtl_hw_start_8168cp_1(void __iomem *ioaddr, struct pci_dev *pdev)
3585{
3586        static struct ephy_info e_info_8168cp[] = {
3587                { 0x01, 0,      0x0001 },
3588                { 0x02, 0x0800, 0x1000 },
3589                { 0x03, 0,      0x0042 },
3590                { 0x06, 0x0080, 0x0000 },
3591                { 0x07, 0,      0x2000 }
3592        };
3593
3594        rtl_csi_access_enable(ioaddr);
3595
3596        rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp));
3597
3598        __rtl_hw_start_8168cp(ioaddr, pdev);
3599}
3600
3601static void rtl_hw_start_8168cp_2(void __iomem *ioaddr, struct pci_dev *pdev)
3602{
3603        rtl_csi_access_enable(ioaddr);
3604
3605        RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3606
3607        rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3608
3609        RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3610}
3611
3612static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev)
3613{
3614        rtl_csi_access_enable(ioaddr);
3615
3616        RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3617
3618        /* Magic. */
3619        RTL_W8(DBG_REG, 0x20);
3620
3621        RTL_W8(EarlyTxThres, EarlyTxThld);
3622
3623        rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3624
3625        RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3626}
3627
3628static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev)
3629{
3630        static struct ephy_info e_info_8168c_1[] = {
3631                { 0x02, 0x0800, 0x1000 },
3632                { 0x03, 0,      0x0002 },
3633                { 0x06, 0x0080, 0x0000 }
3634        };
3635
3636        rtl_csi_access_enable(ioaddr);
3637
3638        RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
3639
3640        rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1));
3641
3642        __rtl_hw_start_8168cp(ioaddr, pdev);
3643}
3644
3645static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
3646{
3647        static struct ephy_info e_info_8168c_2[] = {
3648                { 0x01, 0,      0x0001 },
3649                { 0x03, 0x0400, 0x0220 }
3650        };
3651
3652        rtl_csi_access_enable(ioaddr);
3653
3654        rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2));
3655
3656        __rtl_hw_start_8168cp(ioaddr, pdev);
3657}
3658
3659static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev)
3660{
3661        rtl_hw_start_8168c_2(ioaddr, pdev);
3662}
3663
3664static void rtl_hw_start_8168c_4(void __iomem *ioaddr, struct pci_dev *pdev)
3665{
3666        rtl_csi_access_enable(ioaddr);
3667
3668        __rtl_hw_start_8168cp(ioaddr, pdev);
3669}
3670
3671static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
3672{
3673        rtl_csi_access_enable(ioaddr);
3674
3675        rtl_disable_clock_request(pdev);
3676
3677        RTL_W8(EarlyTxThres, EarlyTxThld);
3678
3679        rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3680
3681        RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3682}
3683
3684static void rtl_hw_start_8168(struct net_device *dev)
3685{
3686        struct rtl8169_private *tp = netdev_priv(dev);
3687        void __iomem *ioaddr = tp->mmio_addr;
3688        struct pci_dev *pdev = tp->pci_dev;
3689
3690        RTL_W8(Cfg9346, Cfg9346_Unlock);
3691
3692        RTL_W8(EarlyTxThres, EarlyTxThld);
3693
3694        rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3695
3696        tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
3697
3698        RTL_W16(CPlusCmd, tp->cp_cmd);
3699
3700        RTL_W16(IntrMitigate, 0x5151);
3701
3702        /* Work around for RxFIFO overflow. */
3703        if (tp->mac_version == RTL_GIGA_MAC_VER_11) {
3704                tp->intr_event |= RxFIFOOver | PCSTimeout;
3705                tp->intr_event &= ~RxOverflow;
3706        }
3707
3708        rtl_set_rx_tx_desc_registers(tp, ioaddr);
3709
3710        rtl_set_rx_mode(dev);
3711
3712        RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3713                (InterFrameGap << TxInterFrameGapShift));
3714
3715        RTL_R8(IntrMask);
3716
3717        switch (tp->mac_version) {
3718        case RTL_GIGA_MAC_VER_11:
3719                rtl_hw_start_8168bb(ioaddr, pdev);
3720        break;
3721
3722        case RTL_GIGA_MAC_VER_12:
3723        case RTL_GIGA_MAC_VER_17:
3724                rtl_hw_start_8168bef(ioaddr, pdev);
3725        break;
3726
3727        case RTL_GIGA_MAC_VER_18:
3728                rtl_hw_start_8168cp_1(ioaddr, pdev);
3729        break;
3730
3731        case RTL_GIGA_MAC_VER_19:
3732                rtl_hw_start_8168c_1(ioaddr, pdev);
3733        break;
3734
3735        case RTL_GIGA_MAC_VER_20:
3736                rtl_hw_start_8168c_2(ioaddr, pdev);
3737        break;
3738
3739        case RTL_GIGA_MAC_VER_21:
3740                rtl_hw_start_8168c_3(ioaddr, pdev);
3741        break;
3742
3743        case RTL_GIGA_MAC_VER_22:
3744                rtl_hw_start_8168c_4(ioaddr, pdev);
3745        break;
3746
3747        case RTL_GIGA_MAC_VER_23:
3748                rtl_hw_start_8168cp_2(ioaddr, pdev);
3749        break;
3750
3751        case RTL_GIGA_MAC_VER_24:
3752                rtl_hw_start_8168cp_3(ioaddr, pdev);
3753        break;
3754
3755        case RTL_GIGA_MAC_VER_25:
3756        case RTL_GIGA_MAC_VER_26:
3757        case RTL_GIGA_MAC_VER_27:
3758                rtl_hw_start_8168d(ioaddr, pdev);
3759        break;
3760
3761        default:
3762                printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
3763                        dev->name, tp->mac_version);
3764        break;
3765        }
3766
3767        RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3768
3769        RTL_W8(Cfg9346, Cfg9346_Lock);
3770
3771        RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3772
3773        RTL_W16(IntrMask, tp->intr_event);
3774}
3775
3776#define R810X_CPCMD_QUIRK_MASK (\
3777        EnableBist | \
3778        Mac_dbgo_oe | \
3779        Force_half_dup | \
3780        Force_rxflow_en | \
3781        Force_txflow_en | \
3782        Cxpl_dbg_sel | \
3783        ASF | \
3784        PktCntrDisable | \
3785        PCIDAC | \
3786        PCIMulRW)
3787
3788static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
3789{
3790        static struct ephy_info e_info_8102e_1[] = {
3791                { 0x01, 0, 0x6e65 },
3792                { 0x02, 0, 0x091f },
3793                { 0x03, 0, 0xc2f9 },
3794                { 0x06, 0, 0xafb5 },
3795                { 0x07, 0, 0x0e00 },
3796                { 0x19, 0, 0xec80 },
3797                { 0x01, 0, 0x2e65 },
3798                { 0x01, 0, 0x6e65 }
3799        };
3800        u8 cfg1;
3801
3802        rtl_csi_access_enable(ioaddr);
3803
3804        RTL_W8(DBG_REG, FIX_NAK_1);
3805
3806        rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3807
3808        RTL_W8(Config1,
3809               LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
3810        RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3811
3812        cfg1 = RTL_R8(Config1);
3813        if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
3814                RTL_W8(Config1, cfg1 & ~LEDS0);
3815
3816        RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
3817
3818        rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
3819}
3820
3821static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
3822{
3823        rtl_csi_access_enable(ioaddr);
3824
3825        rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3826
3827        RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
3828        RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3829
3830        RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK);
3831}
3832
3833static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
3834{
3835        rtl_hw_start_8102e_2(ioaddr, pdev);
3836
3837        rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
3838}
3839
3840static void rtl_hw_start_8101(struct net_device *dev)
3841{
3842        struct rtl8169_private *tp = netdev_priv(dev);
3843        void __iomem *ioaddr = tp->mmio_addr;
3844        struct pci_dev *pdev = tp->pci_dev;
3845
3846        if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
3847            (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
3848                int cap = tp->pcie_cap;
3849
3850                if (cap) {
3851                        pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
3852                                              PCI_EXP_DEVCTL_NOSNOOP_EN);
3853                }
3854        }
3855
3856        switch (tp->mac_version) {
3857        case RTL_GIGA_MAC_VER_07:
3858                rtl_hw_start_8102e_1(ioaddr, pdev);
3859                break;
3860
3861        case RTL_GIGA_MAC_VER_08:
3862                rtl_hw_start_8102e_3(ioaddr, pdev);
3863                break;
3864
3865        case RTL_GIGA_MAC_VER_09:
3866                rtl_hw_start_8102e_2(ioaddr, pdev);
3867                break;
3868        }
3869
3870        RTL_W8(Cfg9346, Cfg9346_Unlock);
3871
3872        RTL_W8(EarlyTxThres, EarlyTxThld);
3873
3874        rtl_set_rx_max_size(ioaddr, tp->rx_buf_sz);
3875
3876        tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
3877
3878        RTL_W16(CPlusCmd, tp->cp_cmd);
3879
3880        RTL_W16(IntrMitigate, 0x0000);
3881
3882        rtl_set_rx_tx_desc_registers(tp, ioaddr);
3883
3884        RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3885        rtl_set_rx_tx_config_registers(tp);
3886
3887        RTL_W8(Cfg9346, Cfg9346_Lock);
3888
3889        RTL_R8(IntrMask);
3890
3891        rtl_set_rx_mode(dev);
3892
3893        RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3894
3895        RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
3896
3897        RTL_W16(IntrMask, tp->intr_event);
3898}
3899
3900static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
3901{
3902        struct rtl8169_private *tp = netdev_priv(dev);
3903        int ret = 0;
3904
3905        if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
3906                return -EINVAL;
3907
3908        dev->mtu = new_mtu;
3909
3910        if (!netif_running(dev))
3911                goto out;
3912
3913        rtl8169_down(dev);
3914
3915        rtl8169_set_rxbufsize(tp, dev);
3916
3917        ret = rtl8169_init_ring(dev);
3918        if (ret < 0)
3919                goto out;
3920
3921        napi_enable(&tp->napi);
3922
3923        rtl_hw_start(dev);
3924
3925        rtl8169_request_timer(dev);
3926
3927out:
3928        return ret;
3929}
3930
3931static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
3932{
3933        desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
3934        desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
3935}
3936
3937static void rtl8169_free_rx_skb(struct rtl8169_private *tp,
3938                                struct sk_buff **sk_buff, struct RxDesc *desc)
3939{
3940        struct pci_dev *pdev = tp->pci_dev;
3941
3942        pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz,
3943                         PCI_DMA_FROMDEVICE);
3944        dev_kfree_skb(*sk_buff);
3945        *sk_buff = NULL;
3946        rtl8169_make_unusable_by_asic(desc);
3947}
3948
3949static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
3950{
3951        u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
3952
3953        desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
3954}
3955
3956static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
3957                                       u32 rx_buf_sz)
3958{
3959        desc->addr = cpu_to_le64(mapping);
3960        wmb();
3961        rtl8169_mark_to_asic(desc, rx_buf_sz);
3962}
3963
3964static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev,
3965                                            struct net_device *dev,
3966                                            struct RxDesc *desc, int rx_buf_sz,
3967                                            unsigned int align)
3968{
3969        struct sk_buff *skb;
3970        dma_addr_t mapping;
3971        unsigned int pad;
3972
3973        pad = align ? align : NET_IP_ALIGN;
3974
3975        skb = netdev_alloc_skb(dev, rx_buf_sz + pad);
3976        if (!skb)
3977                goto err_out;
3978
3979        skb_reserve(skb, align ? ((pad - 1) & (unsigned long)skb->data) : pad);
3980
3981        mapping = pci_map_single(pdev, skb->data, rx_buf_sz,
3982                                 PCI_DMA_FROMDEVICE);
3983
3984        rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
3985out:
3986        return skb;
3987
3988err_out:
3989        rtl8169_make_unusable_by_asic(desc);
3990        goto out;
3991}
3992
3993static void rtl8169_rx_clear(struct rtl8169_private *tp)
3994{
3995        unsigned int i;
3996
3997        for (i = 0; i < NUM_RX_DESC; i++) {
3998                if (tp->Rx_skbuff[i]) {
3999                        rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i,
4000                                            tp->RxDescArray + i);
4001                }
4002        }
4003}
4004
4005static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev,
4006                           u32 start, u32 end)
4007{
4008        u32 cur;
4009
4010        for (cur = start; end - cur != 0; cur++) {
4011                struct sk_buff *skb;
4012                unsigned int i = cur % NUM_RX_DESC;
4013
4014                WARN_ON((s32)(end - cur) < 0);
4015
4016                if (tp->Rx_skbuff[i])
4017                        continue;
4018
4019                skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev,
4020                                           tp->RxDescArray + i,
4021                                           tp->rx_buf_sz, tp->align);
4022                if (!skb)
4023                        break;
4024
4025                tp->Rx_skbuff[i] = skb;
4026        }
4027        return cur - start;
4028}
4029
4030static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
4031{
4032        desc->opts1 |= cpu_to_le32(RingEnd);
4033}
4034
4035static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
4036{
4037        tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
4038}
4039
4040static int rtl8169_init_ring(struct net_device *dev)
4041{
4042        struct rtl8169_private *tp = netdev_priv(dev);
4043
4044        rtl8169_init_ring_indexes(tp);
4045
4046        memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
4047        memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *));
4048
4049        if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC)
4050                goto err_out;
4051
4052        rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
4053
4054        return 0;
4055
4056err_out:
4057        rtl8169_rx_clear(tp);
4058        return -ENOMEM;
4059}
4060
4061static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb,
4062                                 struct TxDesc *desc)
4063{
4064        unsigned int len = tx_skb->len;
4065
4066        pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE);
4067        desc->opts1 = 0x00;
4068        desc->opts2 = 0x00;
4069        desc->addr = 0x00;
4070        tx_skb->len = 0;
4071}
4072
4073static void rtl8169_tx_clear(struct rtl8169_private *tp)
4074{
4075        unsigned int i;
4076
4077        for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) {
4078                unsigned int entry = i % NUM_TX_DESC;
4079                struct ring_info *tx_skb = tp->tx_skb + entry;
4080                unsigned int len = tx_skb->len;
4081
4082                if (len) {
4083                        struct sk_buff *skb = tx_skb->skb;
4084
4085                        rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb,
4086                                             tp->TxDescArray + entry);
4087                        if (skb) {
4088                                dev_kfree_skb(skb);
4089                                tx_skb->skb = NULL;
4090                        }
4091                        tp->dev->stats.tx_dropped++;
4092                }
4093        }
4094        tp->cur_tx = tp->dirty_tx = 0;
4095}
4096
4097static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
4098{
4099        struct rtl8169_private *tp = netdev_priv(dev);
4100
4101        PREPARE_DELAYED_WORK(&tp->task, task);
4102        schedule_delayed_work(&tp->task, 4);
4103}
4104
4105static void rtl8169_wait_for_quiescence(struct net_device *dev)
4106{
4107        struct rtl8169_private *tp = netdev_priv(dev);
4108        void __iomem *ioaddr = tp->mmio_addr;
4109
4110        synchronize_irq(dev->irq);
4111
4112        /* Wait for any pending NAPI task to complete */
4113        napi_disable(&tp->napi);
4114
4115        rtl8169_irq_mask_and_ack(ioaddr);
4116
4117        tp->intr_mask = 0xffff;
4118        RTL_W16(IntrMask, tp->intr_event);
4119        napi_enable(&tp->napi);
4120}
4121
4122static void rtl8169_reinit_task(struct work_struct *work)
4123{
4124        struct rtl8169_private *tp =
4125                container_of(work, struct rtl8169_private, task.work);
4126        struct net_device *dev = tp->dev;
4127        int ret;
4128
4129        rtnl_lock();
4130
4131        if (!netif_running(dev))
4132                goto out_unlock;
4133
4134        rtl8169_wait_for_quiescence(dev);
4135        rtl8169_close(dev);
4136
4137        ret = rtl8169_open(dev);
4138        if (unlikely(ret < 0)) {
4139                if (net_ratelimit() && netif_msg_drv(tp)) {
4140                        printk(KERN_ERR PFX "%s: reinit failure (status = %d)."
4141                               " Rescheduling.\n", dev->name, ret);
4142                }
4143                rtl8169_schedule_work(dev, rtl8169_reinit_task);
4144        }
4145
4146out_unlock:
4147        rtnl_unlock();
4148}
4149
4150static void rtl8169_reset_task(struct work_struct *work)
4151{
4152        struct rtl8169_private *tp =
4153                container_of(work, struct rtl8169_private, task.work);
4154        struct net_device *dev = tp->dev;
4155
4156        rtnl_lock();
4157
4158        if (!netif_running(dev))
4159                goto out_unlock;
4160
4161        rtl8169_wait_for_quiescence(dev);
4162
4163        rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
4164        rtl8169_tx_clear(tp);
4165
4166        if (tp->dirty_rx == tp->cur_rx) {
4167                rtl8169_init_ring_indexes(tp);
4168                rtl_hw_start(dev);
4169                netif_wake_queue(dev);
4170                rtl8169_check_link_status(dev, tp, tp->mmio_addr);
4171        } else {
4172                if (net_ratelimit() && netif_msg_intr(tp)) {
4173                        printk(KERN_EMERG PFX "%s: Rx buffers shortage\n",
4174                               dev->name);
4175                }
4176                rtl8169_schedule_work(dev, rtl8169_reset_task);
4177        }
4178
4179out_unlock:
4180        rtnl_unlock();
4181}
4182
4183static void rtl8169_tx_timeout(struct net_device *dev)
4184{
4185        struct rtl8169_private *tp = netdev_priv(dev);
4186
4187        rtl8169_hw_reset(tp->mmio_addr);
4188
4189        /* Let's wait a bit while any (async) irq lands on */
4190        rtl8169_schedule_work(dev, rtl8169_reset_task);
4191}
4192
4193static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
4194                              u32 opts1)
4195{
4196        struct skb_shared_info *info = skb_shinfo(skb);
4197        unsigned int cur_frag, entry;
4198        struct TxDesc * uninitialized_var(txd);
4199
4200        entry = tp->cur_tx;
4201        for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
4202                skb_frag_t *frag = info->frags + cur_frag;
4203                dma_addr_t mapping;
4204                u32 status, len;
4205                void *addr;
4206
4207                entry = (entry + 1) % NUM_TX_DESC;
4208
4209                txd = tp->TxDescArray + entry;
4210                len = frag->size;
4211                addr = ((void *) page_address(frag->page)) + frag->page_offset;
4212                mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE);
4213
4214                /* anti gcc 2.95.3 bugware (sic) */
4215                status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4216
4217                txd->opts1 = cpu_to_le32(status);
4218                txd->addr = cpu_to_le64(mapping);
4219
4220                tp->tx_skb[entry].len = len;
4221        }
4222
4223        if (cur_frag) {
4224                tp->tx_skb[entry].skb = skb;
4225                txd->opts1 |= cpu_to_le32(LastFrag);
4226        }
4227
4228        return cur_frag;
4229}
4230
4231static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
4232{
4233        if (dev->features & NETIF_F_TSO) {
4234                u32 mss = skb_shinfo(skb)->gso_size;
4235
4236                if (mss)
4237                        return LargeSend | ((mss & MSSMask) << MSSShift);
4238        }
4239        if (skb->ip_summed == CHECKSUM_PARTIAL) {
4240                const struct iphdr *ip = ip_hdr(skb);
4241
4242                if (ip->protocol == IPPROTO_TCP)
4243                        return IPCS | TCPCS;
4244                else if (ip->protocol == IPPROTO_UDP)
4245                        return IPCS | UDPCS;
4246                WARN_ON(1);     /* we need a WARN() */
4247        }
4248        return 0;
4249}
4250
4251static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
4252                                      struct net_device *dev)
4253{
4254        struct rtl8169_private *tp = netdev_priv(dev);
4255        unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC;
4256        struct TxDesc *txd = tp->TxDescArray + entry;
4257        void __iomem *ioaddr = tp->mmio_addr;
4258        dma_addr_t mapping;
4259        u32 status, len;
4260        u32 opts1;
4261
4262        if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
4263                if (netif_msg_drv(tp)) {
4264                        printk(KERN_ERR
4265                               "%s: BUG! Tx Ring full when queue awake!\n",
4266                               dev->name);
4267                }
4268                goto err_stop;
4269        }
4270
4271        if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
4272                goto err_stop;
4273
4274        opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
4275
4276        frags = rtl8169_xmit_frags(tp, skb, opts1);
4277        if (frags) {
4278                len = skb_headlen(skb);
4279                opts1 |= FirstFrag;
4280        } else {
4281                len = skb->len;
4282                opts1 |= FirstFrag | LastFrag;
4283                tp->tx_skb[entry].skb = skb;
4284        }
4285
4286        mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE);
4287
4288        tp->tx_skb[entry].len = len;
4289        txd->addr = cpu_to_le64(mapping);
4290        txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
4291
4292        wmb();
4293
4294        /* anti gcc 2.95.3 bugware (sic) */
4295        status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4296        txd->opts1 = cpu_to_le32(status);
4297
4298        tp->cur_tx += frags + 1;
4299
4300        smp_wmb();
4301
4302        RTL_W8(TxPoll, NPQ);    /* set polling bit */
4303
4304        if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
4305                netif_stop_queue(dev);
4306                smp_rmb();
4307                if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
4308                        netif_wake_queue(dev);
4309        }
4310
4311        return NETDEV_TX_OK;
4312
4313err_stop:
4314        netif_stop_queue(dev);
4315        dev->stats.tx_dropped++;
4316        return NETDEV_TX_BUSY;
4317}
4318
4319static void rtl8169_pcierr_interrupt(struct net_device *dev)
4320{
4321        struct rtl8169_private *tp = netdev_priv(dev);
4322        struct pci_dev *pdev = tp->pci_dev;
4323        void __iomem *ioaddr = tp->mmio_addr;
4324        u16 pci_status, pci_cmd;
4325
4326        pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
4327        pci_read_config_word(pdev, PCI_STATUS, &pci_status);
4328
4329        if (netif_msg_intr(tp)) {
4330                printk(KERN_ERR
4331                       "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n",
4332                       dev->name, pci_cmd, pci_status);
4333        }
4334
4335        /*
4336         * The recovery sequence below admits a very elaborated explanation:
4337         * - it seems to work;
4338         * - I did not see what else could be done;
4339         * - it makes iop3xx happy.
4340         *
4341         * Feel free to adjust to your needs.
4342         */
4343        if (pdev->broken_parity_status)
4344                pci_cmd &= ~PCI_COMMAND_PARITY;
4345        else
4346                pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
4347
4348        pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
4349
4350        pci_write_config_word(pdev, PCI_STATUS,
4351                pci_status & (PCI_STATUS_DETECTED_PARITY |
4352                PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
4353                PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
4354
4355        /* The infamous DAC f*ckup only happens at boot time */
4356        if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
4357                if (netif_msg_intr(tp))
4358                        printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name);
4359                tp->cp_cmd &= ~PCIDAC;
4360                RTL_W16(CPlusCmd, tp->cp_cmd);
4361                dev->features &= ~NETIF_F_HIGHDMA;
4362        }
4363
4364        rtl8169_hw_reset(ioaddr);
4365
4366        rtl8169_schedule_work(dev, rtl8169_reinit_task);
4367}
4368
4369static void rtl8169_tx_interrupt(struct net_device *dev,
4370                                 struct rtl8169_private *tp,
4371                                 void __iomem *ioaddr)
4372{
4373        unsigned int dirty_tx, tx_left;
4374
4375        dirty_tx = tp->dirty_tx;
4376        smp_rmb();
4377        tx_left = tp->cur_tx - dirty_tx;
4378
4379        while (tx_left > 0) {
4380                unsigned int entry = dirty_tx % NUM_TX_DESC;
4381                struct ring_info *tx_skb = tp->tx_skb + entry;
4382                u32 len = tx_skb->len;
4383                u32 status;
4384
4385                rmb();
4386                status = le32_to_cpu(tp->TxDescArray[entry].opts1);
4387                if (status & DescOwn)
4388                        break;
4389
4390                dev->stats.tx_bytes += len;
4391                dev->stats.tx_packets++;
4392
4393                rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry);
4394
4395                if (status & LastFrag) {
4396                        dev_kfree_skb(tx_skb->skb);
4397                        tx_skb->skb = NULL;
4398                }
4399                dirty_tx++;
4400                tx_left--;
4401        }
4402
4403        if (tp->dirty_tx != dirty_tx) {
4404                tp->dirty_tx = dirty_tx;
4405                smp_wmb();
4406                if (netif_queue_stopped(dev) &&
4407                    (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
4408                        netif_wake_queue(dev);
4409                }
4410                /*
4411                 * 8168 hack: TxPoll requests are lost when the Tx packets are
4412                 * too close. Let's kick an extra TxPoll request when a burst
4413                 * of start_xmit activity is detected (if it is not detected,
4414                 * it is slow enough). -- FR
4415                 */
4416                smp_rmb();
4417                if (tp->cur_tx != dirty_tx)
4418                        RTL_W8(TxPoll, NPQ);
4419        }
4420}
4421
4422static inline int rtl8169_fragmented_frame(u32 status)
4423{
4424        return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
4425}
4426
4427static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
4428{
4429        u32 opts1 = le32_to_cpu(desc->opts1);
4430        u32 status = opts1 & RxProtoMask;
4431
4432        if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
4433            ((status == RxProtoUDP) && !(opts1 & UDPFail)) ||
4434            ((status == RxProtoIP) && !(opts1 & IPFail)))
4435                skb->ip_summed = CHECKSUM_UNNECESSARY;
4436        else
4437                skb->ip_summed = CHECKSUM_NONE;
4438}
4439
4440static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff,
4441                                       struct rtl8169_private *tp, int pkt_size,
4442                                       dma_addr_t addr)
4443{
4444        struct sk_buff *skb;
4445        bool done = false;
4446
4447        if (pkt_size >= rx_copybreak)
4448                goto out;
4449
4450        skb = netdev_alloc_skb(tp->dev, pkt_size + NET_IP_ALIGN);
4451        if (!skb)
4452                goto out;
4453
4454        pci_dma_sync_single_for_cpu(tp->pci_dev, addr, pkt_size,
4455                                    PCI_DMA_FROMDEVICE);
4456        skb_reserve(skb, NET_IP_ALIGN);
4457        skb_copy_from_linear_data(*sk_buff, skb->data, pkt_size);
4458        *sk_buff = skb;
4459        done = true;
4460out:
4461        return done;
4462}
4463
4464static int rtl8169_rx_interrupt(struct net_device *dev,
4465                                struct rtl8169_private *tp,
4466                                void __iomem *ioaddr, u32 budget)
4467{
4468        unsigned int cur_rx, rx_left;
4469        unsigned int delta, count;
4470
4471        cur_rx = tp->cur_rx;
4472        rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
4473        rx_left = min(rx_left, budget);
4474
4475        for (; rx_left > 0; rx_left--, cur_rx++) {
4476                unsigned int entry = cur_rx % NUM_RX_DESC;
4477                struct RxDesc *desc = tp->RxDescArray + entry;
4478                u32 status;
4479
4480                rmb();
4481                status = le32_to_cpu(desc->opts1);
4482
4483                if (status & DescOwn)
4484                        break;
4485                if (unlikely(status & RxRES)) {
4486                        if (netif_msg_rx_err(tp)) {
4487                                printk(KERN_INFO
4488                                       "%s: Rx ERROR. status = %08x\n",
4489                                       dev->name, status);
4490                        }
4491                        dev->stats.rx_errors++;
4492                        if (status & (RxRWT | RxRUNT))
4493                                dev->stats.rx_length_errors++;
4494                        if (status & RxCRC)
4495                                dev->stats.rx_crc_errors++;
4496                        if (status & RxFOVF) {
4497                                rtl8169_schedule_work(dev, rtl8169_reset_task);
4498                                dev->stats.rx_fifo_errors++;
4499                        }
4500                        rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4501                } else {
4502                        struct sk_buff *skb = tp->Rx_skbuff[entry];
4503                        dma_addr_t addr = le64_to_cpu(desc->addr);
4504                        int pkt_size = (status & 0x00001FFF) - 4;
4505                        struct pci_dev *pdev = tp->pci_dev;
4506
4507                        /*
4508                         * The driver does not support incoming fragmented
4509                         * frames. They are seen as a symptom of over-mtu
4510                         * sized frames.
4511                         */
4512                        if (unlikely(rtl8169_fragmented_frame(status))) {
4513                                dev->stats.rx_dropped++;
4514                                dev->stats.rx_length_errors++;
4515                                rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4516                                continue;
4517                        }
4518
4519                        rtl8169_rx_csum(skb, desc);
4520
4521                        if (rtl8169_try_rx_copy(&skb, tp, pkt_size, addr)) {
4522                                pci_dma_sync_single_for_device(pdev, addr,
4523                                        pkt_size, PCI_DMA_FROMDEVICE);
4524                                rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
4525                        } else {
4526                                pci_unmap_single(pdev, addr, tp->rx_buf_sz,
4527                                                 PCI_DMA_FROMDEVICE);
4528                                tp->Rx_skbuff[entry] = NULL;
4529                        }
4530
4531                        skb_put(skb, pkt_size);
4532                        skb->protocol = eth_type_trans(skb, dev);
4533
4534                        if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0)
4535                                netif_receive_skb(skb);
4536
4537                        dev->stats.rx_bytes += pkt_size;
4538                        dev->stats.rx_packets++;
4539                }
4540
4541                /* Work around for AMD plateform. */
4542                if ((desc->opts2 & cpu_to_le32(0xfffe000)) &&
4543                    (tp->mac_version == RTL_GIGA_MAC_VER_05)) {
4544                        desc->opts2 = 0;
4545                        cur_rx++;
4546                }
4547        }
4548
4549        count = cur_rx - tp->cur_rx;
4550        tp->cur_rx = cur_rx;
4551
4552        delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
4553        if (!delta && count && netif_msg_intr(tp))
4554                printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name);
4555        tp->dirty_rx += delta;
4556
4557        /*
4558         * FIXME: until there is periodic timer to try and refill the ring,
4559         * a temporary shortage may definitely kill the Rx process.
4560         * - disable the asic to try and avoid an overflow and kick it again
4561         *   after refill ?
4562         * - how do others driver handle this condition (Uh oh...).
4563         */
4564        if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp))
4565                printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name);
4566
4567        return count;
4568}
4569
4570static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
4571{
4572        struct net_device *dev = dev_instance;
4573        struct rtl8169_private *tp = netdev_priv(dev);
4574        void __iomem *ioaddr = tp->mmio_addr;
4575        int handled = 0;
4576        int status;
4577
4578        /* loop handling interrupts until we have no new ones or
4579         * we hit a invalid/hotplug case.
4580         */
4581        status = RTL_R16(IntrStatus);
4582        while (status && status != 0xffff) {
4583                handled = 1;
4584
4585                /* Handle all of the error cases first. These will reset
4586                 * the chip, so just exit the loop.
4587                 */
4588                if (unlikely(!netif_running(dev))) {
4589                        rtl8169_asic_down(ioaddr);
4590                        break;
4591                }
4592
4593                /* Work around for rx fifo overflow */
4594                if (unlikely(status & RxFIFOOver) &&
4595                (tp->mac_version == RTL_GIGA_MAC_VER_11)) {
4596                        netif_stop_queue(dev);
4597                        rtl8169_tx_timeout(dev);
4598                        break;
4599                }
4600
4601                if (unlikely(status & SYSErr)) {
4602                        rtl8169_pcierr_interrupt(dev);
4603                        break;
4604                }
4605
4606                if (status & LinkChg)
4607                        rtl8169_check_link_status(dev, tp, ioaddr);
4608
4609                /* We need to see the lastest version of tp->intr_mask to
4610                 * avoid ignoring an MSI interrupt and having to wait for
4611                 * another event which may never come.
4612                 */
4613                smp_rmb();
4614                if (status & tp->intr_mask & tp->napi_event) {
4615                        RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
4616                        tp->intr_mask = ~tp->napi_event;
4617
4618                        if (likely(napi_schedule_prep(&tp->napi)))
4619                                __napi_schedule(&tp->napi);
4620                        else if (netif_msg_intr(tp)) {
4621                                printk(KERN_INFO "%s: interrupt %04x in poll\n",
4622                                dev->name, status);
4623                        }
4624                }
4625
4626                /* We only get a new MSI interrupt when all active irq
4627                 * sources on the chip have been acknowledged. So, ack
4628                 * everything we've seen and check if new sources have become
4629                 * active to avoid blocking all interrupts from the chip.
4630                 */
4631                RTL_W16(IntrStatus,
4632                        (status & RxFIFOOver) ? (status | RxOverflow) : status);
4633                status = RTL_R16(IntrStatus);
4634        }
4635
4636        return IRQ_RETVAL(handled);
4637}
4638
4639static int rtl8169_poll(struct napi_struct *napi, int budget)
4640{
4641        struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
4642        struct net_device *dev = tp->dev;
4643        void __iomem *ioaddr = tp->mmio_addr;
4644        int work_done;
4645
4646        work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
4647        rtl8169_tx_interrupt(dev, tp, ioaddr);
4648
4649        if (work_done < budget) {
4650                napi_complete(napi);
4651
4652                /* We need for force the visibility of tp->intr_mask
4653                 * for other CPUs, as we can loose an MSI interrupt
4654                 * and potentially wait for a retransmit timeout if we don't.
4655                 * The posted write to IntrMask is safe, as it will
4656                 * eventually make it to the chip and we won't loose anything
4657                 * until it does.
4658                 */
4659                tp->intr_mask = 0xffff;
4660                smp_wmb();
4661                RTL_W16(IntrMask, tp->intr_event);
4662        }
4663
4664        return work_done;
4665}
4666
4667static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr)
4668{
4669        struct rtl8169_private *tp = netdev_priv(dev);
4670
4671        if (tp->mac_version > RTL_GIGA_MAC_VER_06)
4672                return;
4673
4674        dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff);
4675        RTL_W32(RxMissed, 0);
4676}
4677
4678static void rtl8169_down(struct net_device *dev)
4679{
4680        struct rtl8169_private *tp = netdev_priv(dev);
4681        void __iomem *ioaddr = tp->mmio_addr;
4682        unsigned int intrmask;
4683
4684        rtl8169_delete_timer(dev);
4685
4686        netif_stop_queue(dev);
4687
4688        napi_disable(&tp->napi);
4689
4690core_down:
4691        spin_lock_irq(&tp->lock);
4692
4693        rtl8169_asic_down(ioaddr);
4694
4695        rtl8169_rx_missed(dev, ioaddr);
4696
4697        spin_unlock_irq(&tp->lock);
4698
4699        synchronize_irq(dev->irq);
4700
4701        /* Give a racing hard_start_xmit a few cycles to complete. */
4702        synchronize_sched();  /* FIXME: should this be synchronize_irq()? */
4703
4704        /*
4705         * And now for the 50k$ question: are IRQ disabled or not ?
4706         *
4707         * Two paths lead here:
4708         * 1) dev->close
4709         *    -> netif_running() is available to sync the current code and the
4710         *       IRQ handler. See rtl8169_interrupt for details.
4711         * 2) dev->change_mtu
4712         *    -> rtl8169_poll can not be issued again and re-enable the
4713         *       interruptions. Let's simply issue the IRQ down sequence again.
4714         *
4715         * No loop if hotpluged or major error (0xffff).
4716         */
4717        intrmask = RTL_R16(IntrMask);
4718        if (intrmask && (intrmask != 0xffff))
4719                goto core_down;
4720
4721        rtl8169_tx_clear(tp);
4722
4723        rtl8169_rx_clear(tp);
4724}
4725
4726static int rtl8169_close(struct net_device *dev)
4727{
4728        struct rtl8169_private *tp = netdev_priv(dev);
4729        struct pci_dev *pdev = tp->pci_dev;
4730
4731        /* update counters before going down */
4732        rtl8169_update_counters(dev);
4733
4734        rtl8169_down(dev);
4735
4736        free_irq(dev->irq, dev);
4737
4738        pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
4739                            tp->RxPhyAddr);
4740        pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
4741                            tp->TxPhyAddr);
4742        tp->TxDescArray = NULL;
4743        tp->RxDescArray = NULL;
4744
4745        return 0;
4746}
4747
4748static void rtl_set_rx_mode(struct net_device *dev)
4749{
4750        struct rtl8169_private *tp = netdev_priv(dev);
4751        void __iomem *ioaddr = tp->mmio_addr;
4752        unsigned long flags;
4753        u32 mc_filter[2];       /* Multicast hash filter */
4754        int rx_mode;
4755        u32 tmp = 0;
4756
4757        if (dev->flags & IFF_PROMISC) {
4758                /* Unconditionally log net taps. */
4759                if (netif_msg_link(tp)) {
4760                        printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n",
4761                               dev->name);
4762                }
4763                rx_mode =
4764                    AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
4765                    AcceptAllPhys;
4766                mc_filter[1] = mc_filter[0] = 0xffffffff;
4767        } else if ((dev->mc_count > multicast_filter_limit)
4768                   || (dev->flags & IFF_ALLMULTI)) {
4769                /* Too many to filter perfectly -- accept all multicasts. */
4770                rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
4771                mc_filter[1] = mc_filter[0] = 0xffffffff;
4772        } else {
4773                struct dev_mc_list *mclist;
4774                unsigned int i;
4775
4776                rx_mode = AcceptBroadcast | AcceptMyPhys;
4777                mc_filter[1] = mc_filter[0] = 0;
4778                for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
4779                     i++, mclist = mclist->next) {
4780                        int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
4781                        mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
4782                        rx_mode |= AcceptMulticast;
4783                }
4784        }
4785
4786        spin_lock_irqsave(&tp->lock, flags);
4787
4788        tmp = rtl8169_rx_config | rx_mode |
4789              (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
4790
4791        if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
4792                u32 data = mc_filter[0];
4793
4794                mc_filter[0] = swab32(mc_filter[1]);
4795                mc_filter[1] = swab32(data);
4796        }
4797
4798        RTL_W32(MAR0 + 0, mc_filter[0]);
4799        RTL_W32(MAR0 + 4, mc_filter[1]);
4800
4801        RTL_W32(RxConfig, tmp);
4802
4803        spin_unlock_irqrestore(&tp->lock, flags);
4804}
4805
4806/**
4807 *  rtl8169_get_stats - Get rtl8169 read/write statistics
4808 *  @dev: The Ethernet Device to get statistics for
4809 *
4810 *  Get TX/RX statistics for rtl8169
4811 */
4812static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
4813{
4814        struct rtl8169_private *tp = netdev_priv(dev);
4815        void __iomem *ioaddr = tp->mmio_addr;
4816        unsigned long flags;
4817
4818        if (netif_running(dev)) {
4819                spin_lock_irqsave(&tp->lock, flags);
4820                rtl8169_rx_missed(dev, ioaddr);
4821                spin_unlock_irqrestore(&tp->lock, flags);
4822        }
4823
4824        return &dev->stats;
4825}
4826
4827static void rtl8169_net_suspend(struct net_device *dev)
4828{
4829        if (!netif_running(dev))
4830                return;
4831
4832        netif_device_detach(dev);
4833        netif_stop_queue(dev);
4834}
4835
4836#ifdef CONFIG_PM
4837
4838static int rtl8169_suspend(struct device *device)
4839{
4840        struct pci_dev *pdev = to_pci_dev(device);
4841        struct net_device *dev = pci_get_drvdata(pdev);
4842
4843        rtl8169_net_suspend(dev);
4844
4845        return 0;
4846}
4847
4848static int rtl8169_resume(struct device *device)
4849{
4850        struct pci_dev *pdev = to_pci_dev(device);
4851        struct net_device *dev = pci_get_drvdata(pdev);
4852
4853        if (!netif_running(dev))
4854                goto out;
4855
4856        netif_device_attach(dev);
4857
4858        rtl8169_schedule_work(dev, rtl8169_reset_task);
4859out:
4860        return 0;
4861}
4862
4863static struct dev_pm_ops rtl8169_pm_ops = {
4864        .suspend = rtl8169_suspend,
4865        .resume = rtl8169_resume,
4866        .freeze = rtl8169_suspend,
4867        .thaw = rtl8169_resume,
4868        .poweroff = rtl8169_suspend,
4869        .restore = rtl8169_resume,
4870};
4871
4872#define RTL8169_PM_OPS  (&rtl8169_pm_ops)
4873
4874#else /* !CONFIG_PM */
4875
4876#define RTL8169_PM_OPS  NULL
4877
4878#endif /* !CONFIG_PM */
4879
4880static void rtl_shutdown(struct pci_dev *pdev)
4881{
4882        struct net_device *dev = pci_get_drvdata(pdev);
4883        struct rtl8169_private *tp = netdev_priv(dev);
4884        void __iomem *ioaddr = tp->mmio_addr;
4885
4886        rtl8169_net_suspend(dev);
4887
4888        /* restore original MAC address */
4889        rtl_rar_set(tp, dev->perm_addr);
4890
4891        spin_lock_irq(&tp->lock);
4892
4893        rtl8169_asic_down(ioaddr);
4894
4895        spin_unlock_irq(&tp->lock);
4896
4897        if (system_state == SYSTEM_POWER_OFF) {
4898                /* WoL fails with some 8168 when the receiver is disabled. */
4899                if (tp->features & RTL_FEATURE_WOL) {
4900                        pci_clear_master(pdev);
4901
4902                        RTL_W8(ChipCmd, CmdRxEnb);
4903                        /* PCI commit */
4904                        RTL_R8(ChipCmd);
4905                }
4906
4907                pci_wake_from_d3(pdev, true);
4908                pci_set_power_state(pdev, PCI_D3hot);
4909        }
4910}
4911
4912static struct pci_driver rtl8169_pci_driver = {
4913        .name           = MODULENAME,
4914        .id_table       = rtl8169_pci_tbl,
4915        .probe          = rtl8169_init_one,
4916        .remove         = __devexit_p(rtl8169_remove_one),
4917        .shutdown       = rtl_shutdown,
4918        .driver.pm      = RTL8169_PM_OPS,
4919};
4920
4921static int __init rtl8169_init_module(void)
4922{
4923        return pci_register_driver(&rtl8169_pci_driver);
4924}
4925
4926static void __exit rtl8169_cleanup_module(void)
4927{
4928        pci_unregister_driver(&rtl8169_pci_driver);
4929}
4930
4931module_init(rtl8169_init_module);
4932module_exit(rtl8169_cleanup_module);
4933