linux/drivers/net/ethernet/realtek/r8169_main.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * r8169.c: RealTek 8169/8168/8101 ethernet driver.
   4 *
   5 * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
   6 * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
   7 * Copyright (c) a lot of people too. Please respect their work.
   8 *
   9 * See MAINTAINERS file for support contact information.
  10 */
  11
  12#include <linux/module.h>
  13#include <linux/moduleparam.h>
  14#include <linux/pci.h>
  15#include <linux/netdevice.h>
  16#include <linux/etherdevice.h>
  17#include <linux/clk.h>
  18#include <linux/delay.h>
  19#include <linux/ethtool.h>
  20#include <linux/phy.h>
  21#include <linux/if_vlan.h>
  22#include <linux/crc32.h>
  23#include <linux/in.h>
  24#include <linux/io.h>
  25#include <linux/ip.h>
  26#include <linux/tcp.h>
  27#include <linux/interrupt.h>
  28#include <linux/dma-mapping.h>
  29#include <linux/pm_runtime.h>
  30#include <linux/prefetch.h>
  31#include <linux/pci-aspm.h>
  32#include <linux/ipv6.h>
  33#include <net/ip6_checksum.h>
  34
  35#include "r8169_firmware.h"
  36
  37#define MODULENAME "r8169"
  38
  39#define FIRMWARE_8168D_1        "rtl_nic/rtl8168d-1.fw"
  40#define FIRMWARE_8168D_2        "rtl_nic/rtl8168d-2.fw"
  41#define FIRMWARE_8168E_1        "rtl_nic/rtl8168e-1.fw"
  42#define FIRMWARE_8168E_2        "rtl_nic/rtl8168e-2.fw"
  43#define FIRMWARE_8168E_3        "rtl_nic/rtl8168e-3.fw"
  44#define FIRMWARE_8168F_1        "rtl_nic/rtl8168f-1.fw"
  45#define FIRMWARE_8168F_2        "rtl_nic/rtl8168f-2.fw"
  46#define FIRMWARE_8105E_1        "rtl_nic/rtl8105e-1.fw"
  47#define FIRMWARE_8402_1         "rtl_nic/rtl8402-1.fw"
  48#define FIRMWARE_8411_1         "rtl_nic/rtl8411-1.fw"
  49#define FIRMWARE_8411_2         "rtl_nic/rtl8411-2.fw"
  50#define FIRMWARE_8106E_1        "rtl_nic/rtl8106e-1.fw"
  51#define FIRMWARE_8106E_2        "rtl_nic/rtl8106e-2.fw"
  52#define FIRMWARE_8168G_2        "rtl_nic/rtl8168g-2.fw"
  53#define FIRMWARE_8168G_3        "rtl_nic/rtl8168g-3.fw"
  54#define FIRMWARE_8168H_1        "rtl_nic/rtl8168h-1.fw"
  55#define FIRMWARE_8168H_2        "rtl_nic/rtl8168h-2.fw"
  56#define FIRMWARE_8107E_1        "rtl_nic/rtl8107e-1.fw"
  57#define FIRMWARE_8107E_2        "rtl_nic/rtl8107e-2.fw"
  58
  59#define R8169_MSG_DEFAULT \
  60        (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
  61
  62/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
  63   The RTL chips use a 64 element hash table based on the Ethernet CRC. */
  64static const int multicast_filter_limit = 32;
  65
  66#define TX_DMA_BURST    7       /* Maximum PCI burst, '7' is unlimited */
  67#define InterFrameGap   0x03    /* 3 means InterFrameGap = the shortest one */
  68
  69#define R8169_REGS_SIZE         256
  70#define R8169_RX_BUF_SIZE       (SZ_16K - 1)
  71#define NUM_TX_DESC     64      /* Number of Tx descriptor registers */
  72#define NUM_RX_DESC     256U    /* Number of Rx descriptor registers */
  73#define R8169_TX_RING_BYTES     (NUM_TX_DESC * sizeof(struct TxDesc))
  74#define R8169_RX_RING_BYTES     (NUM_RX_DESC * sizeof(struct RxDesc))
  75
  76#define RTL_CFG_NO_GBIT 1
  77
  78/* write/read MMIO register */
  79#define RTL_W8(tp, reg, val8)   writeb((val8), tp->mmio_addr + (reg))
  80#define RTL_W16(tp, reg, val16) writew((val16), tp->mmio_addr + (reg))
  81#define RTL_W32(tp, reg, val32) writel((val32), tp->mmio_addr + (reg))
  82#define RTL_R8(tp, reg)         readb(tp->mmio_addr + (reg))
  83#define RTL_R16(tp, reg)                readw(tp->mmio_addr + (reg))
  84#define RTL_R32(tp, reg)                readl(tp->mmio_addr + (reg))
  85
  86enum mac_version {
  87        /* support for ancient RTL_GIGA_MAC_VER_01 has been removed */
  88        RTL_GIGA_MAC_VER_02,
  89        RTL_GIGA_MAC_VER_03,
  90        RTL_GIGA_MAC_VER_04,
  91        RTL_GIGA_MAC_VER_05,
  92        RTL_GIGA_MAC_VER_06,
  93        RTL_GIGA_MAC_VER_07,
  94        RTL_GIGA_MAC_VER_08,
  95        RTL_GIGA_MAC_VER_09,
  96        RTL_GIGA_MAC_VER_10,
  97        RTL_GIGA_MAC_VER_11,
  98        RTL_GIGA_MAC_VER_12,
  99        RTL_GIGA_MAC_VER_13,
 100        RTL_GIGA_MAC_VER_14,
 101        RTL_GIGA_MAC_VER_15,
 102        RTL_GIGA_MAC_VER_16,
 103        RTL_GIGA_MAC_VER_17,
 104        RTL_GIGA_MAC_VER_18,
 105        RTL_GIGA_MAC_VER_19,
 106        RTL_GIGA_MAC_VER_20,
 107        RTL_GIGA_MAC_VER_21,
 108        RTL_GIGA_MAC_VER_22,
 109        RTL_GIGA_MAC_VER_23,
 110        RTL_GIGA_MAC_VER_24,
 111        RTL_GIGA_MAC_VER_25,
 112        RTL_GIGA_MAC_VER_26,
 113        RTL_GIGA_MAC_VER_27,
 114        RTL_GIGA_MAC_VER_28,
 115        RTL_GIGA_MAC_VER_29,
 116        RTL_GIGA_MAC_VER_30,
 117        RTL_GIGA_MAC_VER_31,
 118        RTL_GIGA_MAC_VER_32,
 119        RTL_GIGA_MAC_VER_33,
 120        RTL_GIGA_MAC_VER_34,
 121        RTL_GIGA_MAC_VER_35,
 122        RTL_GIGA_MAC_VER_36,
 123        RTL_GIGA_MAC_VER_37,
 124        RTL_GIGA_MAC_VER_38,
 125        RTL_GIGA_MAC_VER_39,
 126        RTL_GIGA_MAC_VER_40,
 127        RTL_GIGA_MAC_VER_41,
 128        RTL_GIGA_MAC_VER_42,
 129        RTL_GIGA_MAC_VER_43,
 130        RTL_GIGA_MAC_VER_44,
 131        RTL_GIGA_MAC_VER_45,
 132        RTL_GIGA_MAC_VER_46,
 133        RTL_GIGA_MAC_VER_47,
 134        RTL_GIGA_MAC_VER_48,
 135        RTL_GIGA_MAC_VER_49,
 136        RTL_GIGA_MAC_VER_50,
 137        RTL_GIGA_MAC_VER_51,
 138        RTL_GIGA_MAC_NONE
 139};
 140
 141#define JUMBO_1K        ETH_DATA_LEN
 142#define JUMBO_4K        (4*1024 - ETH_HLEN - 2)
 143#define JUMBO_6K        (6*1024 - ETH_HLEN - 2)
 144#define JUMBO_7K        (7*1024 - ETH_HLEN - 2)
 145#define JUMBO_9K        (9*1024 - ETH_HLEN - 2)
 146
 147static const struct {
 148        const char *name;
 149        const char *fw_name;
 150} rtl_chip_infos[] = {
 151        /* PCI devices. */
 152        [RTL_GIGA_MAC_VER_02] = {"RTL8169s"                             },
 153        [RTL_GIGA_MAC_VER_03] = {"RTL8110s"                             },
 154        [RTL_GIGA_MAC_VER_04] = {"RTL8169sb/8110sb"                     },
 155        [RTL_GIGA_MAC_VER_05] = {"RTL8169sc/8110sc"                     },
 156        [RTL_GIGA_MAC_VER_06] = {"RTL8169sc/8110sc"                     },
 157        /* PCI-E devices. */
 158        [RTL_GIGA_MAC_VER_07] = {"RTL8102e"                             },
 159        [RTL_GIGA_MAC_VER_08] = {"RTL8102e"                             },
 160        [RTL_GIGA_MAC_VER_09] = {"RTL8102e/RTL8103e"                    },
 161        [RTL_GIGA_MAC_VER_10] = {"RTL8101e"                             },
 162        [RTL_GIGA_MAC_VER_11] = {"RTL8168b/8111b"                       },
 163        [RTL_GIGA_MAC_VER_12] = {"RTL8168b/8111b"                       },
 164        [RTL_GIGA_MAC_VER_13] = {"RTL8101e"                             },
 165        [RTL_GIGA_MAC_VER_14] = {"RTL8100e"                             },
 166        [RTL_GIGA_MAC_VER_15] = {"RTL8100e"                             },
 167        [RTL_GIGA_MAC_VER_16] = {"RTL8101e"                             },
 168        [RTL_GIGA_MAC_VER_17] = {"RTL8168b/8111b"                       },
 169        [RTL_GIGA_MAC_VER_18] = {"RTL8168cp/8111cp"                     },
 170        [RTL_GIGA_MAC_VER_19] = {"RTL8168c/8111c"                       },
 171        [RTL_GIGA_MAC_VER_20] = {"RTL8168c/8111c"                       },
 172        [RTL_GIGA_MAC_VER_21] = {"RTL8168c/8111c"                       },
 173        [RTL_GIGA_MAC_VER_22] = {"RTL8168c/8111c"                       },
 174        [RTL_GIGA_MAC_VER_23] = {"RTL8168cp/8111cp"                     },
 175        [RTL_GIGA_MAC_VER_24] = {"RTL8168cp/8111cp"                     },
 176        [RTL_GIGA_MAC_VER_25] = {"RTL8168d/8111d",      FIRMWARE_8168D_1},
 177        [RTL_GIGA_MAC_VER_26] = {"RTL8168d/8111d",      FIRMWARE_8168D_2},
 178        [RTL_GIGA_MAC_VER_27] = {"RTL8168dp/8111dp"                     },
 179        [RTL_GIGA_MAC_VER_28] = {"RTL8168dp/8111dp"                     },
 180        [RTL_GIGA_MAC_VER_29] = {"RTL8105e",            FIRMWARE_8105E_1},
 181        [RTL_GIGA_MAC_VER_30] = {"RTL8105e",            FIRMWARE_8105E_1},
 182        [RTL_GIGA_MAC_VER_31] = {"RTL8168dp/8111dp"                     },
 183        [RTL_GIGA_MAC_VER_32] = {"RTL8168e/8111e",      FIRMWARE_8168E_1},
 184        [RTL_GIGA_MAC_VER_33] = {"RTL8168e/8111e",      FIRMWARE_8168E_2},
 185        [RTL_GIGA_MAC_VER_34] = {"RTL8168evl/8111evl",  FIRMWARE_8168E_3},
 186        [RTL_GIGA_MAC_VER_35] = {"RTL8168f/8111f",      FIRMWARE_8168F_1},
 187        [RTL_GIGA_MAC_VER_36] = {"RTL8168f/8111f",      FIRMWARE_8168F_2},
 188        [RTL_GIGA_MAC_VER_37] = {"RTL8402",             FIRMWARE_8402_1 },
 189        [RTL_GIGA_MAC_VER_38] = {"RTL8411",             FIRMWARE_8411_1 },
 190        [RTL_GIGA_MAC_VER_39] = {"RTL8106e",            FIRMWARE_8106E_1},
 191        [RTL_GIGA_MAC_VER_40] = {"RTL8168g/8111g",      FIRMWARE_8168G_2},
 192        [RTL_GIGA_MAC_VER_41] = {"RTL8168g/8111g"                       },
 193        [RTL_GIGA_MAC_VER_42] = {"RTL8168gu/8111gu",    FIRMWARE_8168G_3},
 194        [RTL_GIGA_MAC_VER_43] = {"RTL8106eus",          FIRMWARE_8106E_2},
 195        [RTL_GIGA_MAC_VER_44] = {"RTL8411b",            FIRMWARE_8411_2 },
 196        [RTL_GIGA_MAC_VER_45] = {"RTL8168h/8111h",      FIRMWARE_8168H_1},
 197        [RTL_GIGA_MAC_VER_46] = {"RTL8168h/8111h",      FIRMWARE_8168H_2},
 198        [RTL_GIGA_MAC_VER_47] = {"RTL8107e",            FIRMWARE_8107E_1},
 199        [RTL_GIGA_MAC_VER_48] = {"RTL8107e",            FIRMWARE_8107E_2},
 200        [RTL_GIGA_MAC_VER_49] = {"RTL8168ep/8111ep"                     },
 201        [RTL_GIGA_MAC_VER_50] = {"RTL8168ep/8111ep"                     },
 202        [RTL_GIGA_MAC_VER_51] = {"RTL8168ep/8111ep"                     },
 203};
 204
 205static const struct pci_device_id rtl8169_pci_tbl[] = {
 206        { PCI_VDEVICE(REALTEK,  0x2502) },
 207        { PCI_VDEVICE(REALTEK,  0x2600) },
 208        { PCI_VDEVICE(REALTEK,  0x8129) },
 209        { PCI_VDEVICE(REALTEK,  0x8136), RTL_CFG_NO_GBIT },
 210        { PCI_VDEVICE(REALTEK,  0x8161) },
 211        { PCI_VDEVICE(REALTEK,  0x8167) },
 212        { PCI_VDEVICE(REALTEK,  0x8168) },
 213        { PCI_VDEVICE(NCUBE,    0x8168) },
 214        { PCI_VDEVICE(REALTEK,  0x8169) },
 215        { PCI_VENDOR_ID_DLINK,  0x4300,
 216                PCI_VENDOR_ID_DLINK, 0x4b10, 0, 0 },
 217        { PCI_VDEVICE(DLINK,    0x4300) },
 218        { PCI_VDEVICE(DLINK,    0x4302) },
 219        { PCI_VDEVICE(AT,       0xc107) },
 220        { PCI_VDEVICE(USR,      0x0116) },
 221        { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024 },
 222        { 0x0001, 0x8168, PCI_ANY_ID, 0x2410 },
 223        {}
 224};
 225
 226MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
 227
 228static struct {
 229        u32 msg_enable;
 230} debug = { -1 };
 231
 232enum rtl_registers {
 233        MAC0            = 0,    /* Ethernet hardware address. */
 234        MAC4            = 4,
 235        MAR0            = 8,    /* Multicast filter. */
 236        CounterAddrLow          = 0x10,
 237        CounterAddrHigh         = 0x14,
 238        TxDescStartAddrLow      = 0x20,
 239        TxDescStartAddrHigh     = 0x24,
 240        TxHDescStartAddrLow     = 0x28,
 241        TxHDescStartAddrHigh    = 0x2c,
 242        FLASH           = 0x30,
 243        ERSR            = 0x36,
 244        ChipCmd         = 0x37,
 245        TxPoll          = 0x38,
 246        IntrMask        = 0x3c,
 247        IntrStatus      = 0x3e,
 248
 249        TxConfig        = 0x40,
 250#define TXCFG_AUTO_FIFO                 (1 << 7)        /* 8111e-vl */
 251#define TXCFG_EMPTY                     (1 << 11)       /* 8111e-vl */
 252
 253        RxConfig        = 0x44,
 254#define RX128_INT_EN                    (1 << 15)       /* 8111c and later */
 255#define RX_MULTI_EN                     (1 << 14)       /* 8111c only */
 256#define RXCFG_FIFO_SHIFT                13
 257                                        /* No threshold before first PCI xfer */
 258#define RX_FIFO_THRESH                  (7 << RXCFG_FIFO_SHIFT)
 259#define RX_EARLY_OFF                    (1 << 11)
 260#define RXCFG_DMA_SHIFT                 8
 261                                        /* Unlimited maximum PCI burst. */
 262#define RX_DMA_BURST                    (7 << RXCFG_DMA_SHIFT)
 263
 264        RxMissed        = 0x4c,
 265        Cfg9346         = 0x50,
 266        Config0         = 0x51,
 267        Config1         = 0x52,
 268        Config2         = 0x53,
 269#define PME_SIGNAL                      (1 << 5)        /* 8168c and later */
 270
 271        Config3         = 0x54,
 272        Config4         = 0x55,
 273        Config5         = 0x56,
 274        MultiIntr       = 0x5c,
 275        PHYAR           = 0x60,
 276        PHYstatus       = 0x6c,
 277        RxMaxSize       = 0xda,
 278        CPlusCmd        = 0xe0,
 279        IntrMitigate    = 0xe2,
 280
 281#define RTL_COALESCE_MASK       0x0f
 282#define RTL_COALESCE_SHIFT      4
 283#define RTL_COALESCE_T_MAX      (RTL_COALESCE_MASK)
 284#define RTL_COALESCE_FRAME_MAX  (RTL_COALESCE_MASK << 2)
 285
 286        RxDescAddrLow   = 0xe4,
 287        RxDescAddrHigh  = 0xe8,
 288        EarlyTxThres    = 0xec, /* 8169. Unit of 32 bytes. */
 289
 290#define NoEarlyTx       0x3f    /* Max value : no early transmit. */
 291
 292        MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
 293
 294#define TxPacketMax     (8064 >> 7)
 295#define EarlySize       0x27
 296
 297        FuncEvent       = 0xf0,
 298        FuncEventMask   = 0xf4,
 299        FuncPresetState = 0xf8,
 300        IBCR0           = 0xf8,
 301        IBCR2           = 0xf9,
 302        IBIMR0          = 0xfa,
 303        IBISR0          = 0xfb,
 304        FuncForceEvent  = 0xfc,
 305};
 306
 307enum rtl8168_8101_registers {
 308        CSIDR                   = 0x64,
 309        CSIAR                   = 0x68,
 310#define CSIAR_FLAG                      0x80000000
 311#define CSIAR_WRITE_CMD                 0x80000000
 312#define CSIAR_BYTE_ENABLE               0x0000f000
 313#define CSIAR_ADDR_MASK                 0x00000fff
 314        PMCH                    = 0x6f,
 315        EPHYAR                  = 0x80,
 316#define EPHYAR_FLAG                     0x80000000
 317#define EPHYAR_WRITE_CMD                0x80000000
 318#define EPHYAR_REG_MASK                 0x1f
 319#define EPHYAR_REG_SHIFT                16
 320#define EPHYAR_DATA_MASK                0xffff
 321        DLLPR                   = 0xd0,
 322#define PFM_EN                          (1 << 6)
 323#define TX_10M_PS_EN                    (1 << 7)
 324        DBG_REG                 = 0xd1,
 325#define FIX_NAK_1                       (1 << 4)
 326#define FIX_NAK_2                       (1 << 3)
 327        TWSI                    = 0xd2,
 328        MCU                     = 0xd3,
 329#define NOW_IS_OOB                      (1 << 7)
 330#define TX_EMPTY                        (1 << 5)
 331#define RX_EMPTY                        (1 << 4)
 332#define RXTX_EMPTY                      (TX_EMPTY | RX_EMPTY)
 333#define EN_NDP                          (1 << 3)
 334#define EN_OOB_RESET                    (1 << 2)
 335#define LINK_LIST_RDY                   (1 << 1)
 336        EFUSEAR                 = 0xdc,
 337#define EFUSEAR_FLAG                    0x80000000
 338#define EFUSEAR_WRITE_CMD               0x80000000
 339#define EFUSEAR_READ_CMD                0x00000000
 340#define EFUSEAR_REG_MASK                0x03ff
 341#define EFUSEAR_REG_SHIFT               8
 342#define EFUSEAR_DATA_MASK               0xff
 343        MISC_1                  = 0xf2,
 344#define PFM_D3COLD_EN                   (1 << 6)
 345};
 346
 347enum rtl8168_registers {
 348        LED_FREQ                = 0x1a,
 349        EEE_LED                 = 0x1b,
 350        ERIDR                   = 0x70,
 351        ERIAR                   = 0x74,
 352#define ERIAR_FLAG                      0x80000000
 353#define ERIAR_WRITE_CMD                 0x80000000
 354#define ERIAR_READ_CMD                  0x00000000
 355#define ERIAR_ADDR_BYTE_ALIGN           4
 356#define ERIAR_TYPE_SHIFT                16
 357#define ERIAR_EXGMAC                    (0x00 << ERIAR_TYPE_SHIFT)
 358#define ERIAR_MSIX                      (0x01 << ERIAR_TYPE_SHIFT)
 359#define ERIAR_ASF                       (0x02 << ERIAR_TYPE_SHIFT)
 360#define ERIAR_OOB                       (0x02 << ERIAR_TYPE_SHIFT)
 361#define ERIAR_MASK_SHIFT                12
 362#define ERIAR_MASK_0001                 (0x1 << ERIAR_MASK_SHIFT)
 363#define ERIAR_MASK_0011                 (0x3 << ERIAR_MASK_SHIFT)
 364#define ERIAR_MASK_0100                 (0x4 << ERIAR_MASK_SHIFT)
 365#define ERIAR_MASK_0101                 (0x5 << ERIAR_MASK_SHIFT)
 366#define ERIAR_MASK_1111                 (0xf << ERIAR_MASK_SHIFT)
 367        EPHY_RXER_NUM           = 0x7c,
 368        OCPDR                   = 0xb0, /* OCP GPHY access */
 369#define OCPDR_WRITE_CMD                 0x80000000
 370#define OCPDR_READ_CMD                  0x00000000
 371#define OCPDR_REG_MASK                  0x7f
 372#define OCPDR_GPHY_REG_SHIFT            16
 373#define OCPDR_DATA_MASK                 0xffff
 374        OCPAR                   = 0xb4,
 375#define OCPAR_FLAG                      0x80000000
 376#define OCPAR_GPHY_WRITE_CMD            0x8000f060
 377#define OCPAR_GPHY_READ_CMD             0x0000f060
 378        GPHY_OCP                = 0xb8,
 379        RDSAR1                  = 0xd0, /* 8168c only. Undocumented on 8168dp */
 380        MISC                    = 0xf0, /* 8168e only. */
 381#define TXPLA_RST                       (1 << 29)
 382#define DISABLE_LAN_EN                  (1 << 23) /* Enable GPIO pin */
 383#define PWM_EN                          (1 << 22)
 384#define RXDV_GATED_EN                   (1 << 19)
 385#define EARLY_TALLY_EN                  (1 << 16)
 386};
 387
 388enum rtl_register_content {
 389        /* InterruptStatusBits */
 390        SYSErr          = 0x8000,
 391        PCSTimeout      = 0x4000,
 392        SWInt           = 0x0100,
 393        TxDescUnavail   = 0x0080,
 394        RxFIFOOver      = 0x0040,
 395        LinkChg         = 0x0020,
 396        RxOverflow      = 0x0010,
 397        TxErr           = 0x0008,
 398        TxOK            = 0x0004,
 399        RxErr           = 0x0002,
 400        RxOK            = 0x0001,
 401
 402        /* RxStatusDesc */
 403        RxRWT   = (1 << 22),
 404        RxRES   = (1 << 21),
 405        RxRUNT  = (1 << 20),
 406        RxCRC   = (1 << 19),
 407
 408        /* ChipCmdBits */
 409        StopReq         = 0x80,
 410        CmdReset        = 0x10,
 411        CmdRxEnb        = 0x08,
 412        CmdTxEnb        = 0x04,
 413        RxBufEmpty      = 0x01,
 414
 415        /* TXPoll register p.5 */
 416        HPQ             = 0x80,         /* Poll cmd on the high prio queue */
 417        NPQ             = 0x40,         /* Poll cmd on the low prio queue */
 418        FSWInt          = 0x01,         /* Forced software interrupt */
 419
 420        /* Cfg9346Bits */
 421        Cfg9346_Lock    = 0x00,
 422        Cfg9346_Unlock  = 0xc0,
 423
 424        /* rx_mode_bits */
 425        AcceptErr       = 0x20,
 426        AcceptRunt      = 0x10,
 427        AcceptBroadcast = 0x08,
 428        AcceptMulticast = 0x04,
 429        AcceptMyPhys    = 0x02,
 430        AcceptAllPhys   = 0x01,
 431#define RX_CONFIG_ACCEPT_MASK           0x3f
 432
 433        /* TxConfigBits */
 434        TxInterFrameGapShift = 24,
 435        TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
 436
 437        /* Config1 register p.24 */
 438        LEDS1           = (1 << 7),
 439        LEDS0           = (1 << 6),
 440        Speed_down      = (1 << 4),
 441        MEMMAP          = (1 << 3),
 442        IOMAP           = (1 << 2),
 443        VPD             = (1 << 1),
 444        PMEnable        = (1 << 0),     /* Power Management Enable */
 445
 446        /* Config2 register p. 25 */
 447        ClkReqEn        = (1 << 7),     /* Clock Request Enable */
 448        MSIEnable       = (1 << 5),     /* 8169 only. Reserved in the 8168. */
 449        PCI_Clock_66MHz = 0x01,
 450        PCI_Clock_33MHz = 0x00,
 451
 452        /* Config3 register p.25 */
 453        MagicPacket     = (1 << 5),     /* Wake up when receives a Magic Packet */
 454        LinkUp          = (1 << 4),     /* Wake up when the cable connection is re-established */
 455        Jumbo_En0       = (1 << 2),     /* 8168 only. Reserved in the 8168b */
 456        Rdy_to_L23      = (1 << 1),     /* L23 Enable */
 457        Beacon_en       = (1 << 0),     /* 8168 only. Reserved in the 8168b */
 458
 459        /* Config4 register */
 460        Jumbo_En1       = (1 << 1),     /* 8168 only. Reserved in the 8168b */
 461
 462        /* Config5 register p.27 */
 463        BWF             = (1 << 6),     /* Accept Broadcast wakeup frame */
 464        MWF             = (1 << 5),     /* Accept Multicast wakeup frame */
 465        UWF             = (1 << 4),     /* Accept Unicast wakeup frame */
 466        Spi_en          = (1 << 3),
 467        LanWake         = (1 << 1),     /* LanWake enable/disable */
 468        PMEStatus       = (1 << 0),     /* PME status can be reset by PCI RST# */
 469        ASPM_en         = (1 << 0),     /* ASPM enable */
 470
 471        /* CPlusCmd p.31 */
 472        EnableBist      = (1 << 15),    // 8168 8101
 473        Mac_dbgo_oe     = (1 << 14),    // 8168 8101
 474        Normal_mode     = (1 << 13),    // unused
 475        Force_half_dup  = (1 << 12),    // 8168 8101
 476        Force_rxflow_en = (1 << 11),    // 8168 8101
 477        Force_txflow_en = (1 << 10),    // 8168 8101
 478        Cxpl_dbg_sel    = (1 << 9),     // 8168 8101
 479        ASF             = (1 << 8),     // 8168 8101
 480        PktCntrDisable  = (1 << 7),     // 8168 8101
 481        Mac_dbgo_sel    = 0x001c,       // 8168
 482        RxVlan          = (1 << 6),
 483        RxChkSum        = (1 << 5),
 484        PCIDAC          = (1 << 4),
 485        PCIMulRW        = (1 << 3),
 486#define INTT_MASK       GENMASK(1, 0)
 487#define CPCMD_MASK      (Normal_mode | RxVlan | RxChkSum | INTT_MASK)
 488
 489        /* rtl8169_PHYstatus */
 490        TBI_Enable      = 0x80,
 491        TxFlowCtrl      = 0x40,
 492        RxFlowCtrl      = 0x20,
 493        _1000bpsF       = 0x10,
 494        _100bps         = 0x08,
 495        _10bps          = 0x04,
 496        LinkStatus      = 0x02,
 497        FullDup         = 0x01,
 498
 499        /* ResetCounterCommand */
 500        CounterReset    = 0x1,
 501
 502        /* DumpCounterCommand */
 503        CounterDump     = 0x8,
 504
 505        /* magic enable v2 */
 506        MagicPacket_v2  = (1 << 16),    /* Wake up when receives a Magic Packet */
 507};
 508
 509enum rtl_desc_bit {
 510        /* First doubleword. */
 511        DescOwn         = (1 << 31), /* Descriptor is owned by NIC */
 512        RingEnd         = (1 << 30), /* End of descriptor ring */
 513        FirstFrag       = (1 << 29), /* First segment of a packet */
 514        LastFrag        = (1 << 28), /* Final segment of a packet */
 515};
 516
 517/* Generic case. */
 518enum rtl_tx_desc_bit {
 519        /* First doubleword. */
 520        TD_LSO          = (1 << 27),            /* Large Send Offload */
 521#define TD_MSS_MAX                      0x07ffu /* MSS value */
 522
 523        /* Second doubleword. */
 524        TxVlanTag       = (1 << 17),            /* Add VLAN tag */
 525};
 526
 527/* 8169, 8168b and 810x except 8102e. */
 528enum rtl_tx_desc_bit_0 {
 529        /* First doubleword. */
 530#define TD0_MSS_SHIFT                   16      /* MSS position (11 bits) */
 531        TD0_TCP_CS      = (1 << 16),            /* Calculate TCP/IP checksum */
 532        TD0_UDP_CS      = (1 << 17),            /* Calculate UDP/IP checksum */
 533        TD0_IP_CS       = (1 << 18),            /* Calculate IP checksum */
 534};
 535
 536/* 8102e, 8168c and beyond. */
 537enum rtl_tx_desc_bit_1 {
 538        /* First doubleword. */
 539        TD1_GTSENV4     = (1 << 26),            /* Giant Send for IPv4 */
 540        TD1_GTSENV6     = (1 << 25),            /* Giant Send for IPv6 */
 541#define GTTCPHO_SHIFT                   18
 542#define GTTCPHO_MAX                     0x7fU
 543
 544        /* Second doubleword. */
 545#define TCPHO_SHIFT                     18
 546#define TCPHO_MAX                       0x3ffU
 547#define TD1_MSS_SHIFT                   18      /* MSS position (11 bits) */
 548        TD1_IPv6_CS     = (1 << 28),            /* Calculate IPv6 checksum */
 549        TD1_IPv4_CS     = (1 << 29),            /* Calculate IPv4 checksum */
 550        TD1_TCP_CS      = (1 << 30),            /* Calculate TCP/IP checksum */
 551        TD1_UDP_CS      = (1 << 31),            /* Calculate UDP/IP checksum */
 552};
 553
 554enum rtl_rx_desc_bit {
 555        /* Rx private */
 556        PID1            = (1 << 18), /* Protocol ID bit 1/2 */
 557        PID0            = (1 << 17), /* Protocol ID bit 0/2 */
 558
 559#define RxProtoUDP      (PID1)
 560#define RxProtoTCP      (PID0)
 561#define RxProtoIP       (PID1 | PID0)
 562#define RxProtoMask     RxProtoIP
 563
 564        IPFail          = (1 << 16), /* IP checksum failed */
 565        UDPFail         = (1 << 15), /* UDP/IP checksum failed */
 566        TCPFail         = (1 << 14), /* TCP/IP checksum failed */
 567        RxVlanTag       = (1 << 16), /* VLAN tag available */
 568};
 569
 570#define RsvdMask        0x3fffc000
 571
 572struct TxDesc {
 573        __le32 opts1;
 574        __le32 opts2;
 575        __le64 addr;
 576};
 577
 578struct RxDesc {
 579        __le32 opts1;
 580        __le32 opts2;
 581        __le64 addr;
 582};
 583
 584struct ring_info {
 585        struct sk_buff  *skb;
 586        u32             len;
 587};
 588
 589struct rtl8169_counters {
 590        __le64  tx_packets;
 591        __le64  rx_packets;
 592        __le64  tx_errors;
 593        __le32  rx_errors;
 594        __le16  rx_missed;
 595        __le16  align_errors;
 596        __le32  tx_one_collision;
 597        __le32  tx_multi_collision;
 598        __le64  rx_unicast;
 599        __le64  rx_broadcast;
 600        __le32  rx_multicast;
 601        __le16  tx_aborted;
 602        __le16  tx_underun;
 603};
 604
 605struct rtl8169_tc_offsets {
 606        bool    inited;
 607        __le64  tx_errors;
 608        __le32  tx_multi_collision;
 609        __le16  tx_aborted;
 610};
 611
 612enum rtl_flag {
 613        RTL_FLAG_TASK_ENABLED = 0,
 614        RTL_FLAG_TASK_RESET_PENDING,
 615        RTL_FLAG_MAX
 616};
 617
 618struct rtl8169_stats {
 619        u64                     packets;
 620        u64                     bytes;
 621        struct u64_stats_sync   syncp;
 622};
 623
 624struct rtl8169_private {
 625        void __iomem *mmio_addr;        /* memory map physical address */
 626        struct pci_dev *pci_dev;
 627        struct net_device *dev;
 628        struct phy_device *phydev;
 629        struct napi_struct napi;
 630        u32 msg_enable;
 631        enum mac_version mac_version;
 632        u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
 633        u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
 634        u32 dirty_tx;
 635        struct rtl8169_stats rx_stats;
 636        struct rtl8169_stats tx_stats;
 637        struct TxDesc *TxDescArray;     /* 256-aligned Tx descriptor ring */
 638        struct RxDesc *RxDescArray;     /* 256-aligned Rx descriptor ring */
 639        dma_addr_t TxPhyAddr;
 640        dma_addr_t RxPhyAddr;
 641        void *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
 642        struct ring_info tx_skb[NUM_TX_DESC];   /* Tx data buffers */
 643        u16 cp_cmd;
 644        u16 irq_mask;
 645        struct clk *clk;
 646
 647        struct {
 648                DECLARE_BITMAP(flags, RTL_FLAG_MAX);
 649                struct mutex mutex;
 650                struct work_struct work;
 651        } wk;
 652
 653        unsigned irq_enabled:1;
 654        unsigned supports_gmii:1;
 655        unsigned aspm_manageable:1;
 656        dma_addr_t counters_phys_addr;
 657        struct rtl8169_counters *counters;
 658        struct rtl8169_tc_offsets tc_offset;
 659        u32 saved_wolopts;
 660
 661        const char *fw_name;
 662        struct rtl_fw *rtl_fw;
 663
 664        u32 ocp_base;
 665};
 666
 667typedef void (*rtl_generic_fct)(struct rtl8169_private *tp);
 668
 669MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
 670MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
 671module_param_named(debug, debug.msg_enable, int, 0);
 672MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
 673MODULE_SOFTDEP("pre: realtek");
 674MODULE_LICENSE("GPL");
 675MODULE_FIRMWARE(FIRMWARE_8168D_1);
 676MODULE_FIRMWARE(FIRMWARE_8168D_2);
 677MODULE_FIRMWARE(FIRMWARE_8168E_1);
 678MODULE_FIRMWARE(FIRMWARE_8168E_2);
 679MODULE_FIRMWARE(FIRMWARE_8168E_3);
 680MODULE_FIRMWARE(FIRMWARE_8105E_1);
 681MODULE_FIRMWARE(FIRMWARE_8168F_1);
 682MODULE_FIRMWARE(FIRMWARE_8168F_2);
 683MODULE_FIRMWARE(FIRMWARE_8402_1);
 684MODULE_FIRMWARE(FIRMWARE_8411_1);
 685MODULE_FIRMWARE(FIRMWARE_8411_2);
 686MODULE_FIRMWARE(FIRMWARE_8106E_1);
 687MODULE_FIRMWARE(FIRMWARE_8106E_2);
 688MODULE_FIRMWARE(FIRMWARE_8168G_2);
 689MODULE_FIRMWARE(FIRMWARE_8168G_3);
 690MODULE_FIRMWARE(FIRMWARE_8168H_1);
 691MODULE_FIRMWARE(FIRMWARE_8168H_2);
 692MODULE_FIRMWARE(FIRMWARE_8107E_1);
 693MODULE_FIRMWARE(FIRMWARE_8107E_2);
 694
 695static inline struct device *tp_to_dev(struct rtl8169_private *tp)
 696{
 697        return &tp->pci_dev->dev;
 698}
 699
 700static void rtl_lock_work(struct rtl8169_private *tp)
 701{
 702        mutex_lock(&tp->wk.mutex);
 703}
 704
 705static void rtl_unlock_work(struct rtl8169_private *tp)
 706{
 707        mutex_unlock(&tp->wk.mutex);
 708}
 709
 710static void rtl_lock_config_regs(struct rtl8169_private *tp)
 711{
 712        RTL_W8(tp, Cfg9346, Cfg9346_Lock);
 713}
 714
 715static void rtl_unlock_config_regs(struct rtl8169_private *tp)
 716{
 717        RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
 718}
 719
 720static void rtl_tx_performance_tweak(struct rtl8169_private *tp, u16 force)
 721{
 722        pcie_capability_clear_and_set_word(tp->pci_dev, PCI_EXP_DEVCTL,
 723                                           PCI_EXP_DEVCTL_READRQ, force);
 724}
 725
 726static bool rtl_is_8168evl_up(struct rtl8169_private *tp)
 727{
 728        return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
 729               tp->mac_version != RTL_GIGA_MAC_VER_39;
 730}
 731
 732struct rtl_cond {
 733        bool (*check)(struct rtl8169_private *);
 734        const char *msg;
 735};
 736
 737static void rtl_udelay(unsigned int d)
 738{
 739        udelay(d);
 740}
 741
 742static bool rtl_loop_wait(struct rtl8169_private *tp, const struct rtl_cond *c,
 743                          void (*delay)(unsigned int), unsigned int d, int n,
 744                          bool high)
 745{
 746        int i;
 747
 748        for (i = 0; i < n; i++) {
 749                if (c->check(tp) == high)
 750                        return true;
 751                delay(d);
 752        }
 753        netif_err(tp, drv, tp->dev, "%s == %d (loop: %d, delay: %d).\n",
 754                  c->msg, !high, n, d);
 755        return false;
 756}
 757
 758static bool rtl_udelay_loop_wait_high(struct rtl8169_private *tp,
 759                                      const struct rtl_cond *c,
 760                                      unsigned int d, int n)
 761{
 762        return rtl_loop_wait(tp, c, rtl_udelay, d, n, true);
 763}
 764
 765static bool rtl_udelay_loop_wait_low(struct rtl8169_private *tp,
 766                                     const struct rtl_cond *c,
 767                                     unsigned int d, int n)
 768{
 769        return rtl_loop_wait(tp, c, rtl_udelay, d, n, false);
 770}
 771
 772static bool rtl_msleep_loop_wait_high(struct rtl8169_private *tp,
 773                                      const struct rtl_cond *c,
 774                                      unsigned int d, int n)
 775{
 776        return rtl_loop_wait(tp, c, msleep, d, n, true);
 777}
 778
 779static bool rtl_msleep_loop_wait_low(struct rtl8169_private *tp,
 780                                     const struct rtl_cond *c,
 781                                     unsigned int d, int n)
 782{
 783        return rtl_loop_wait(tp, c, msleep, d, n, false);
 784}
 785
 786#define DECLARE_RTL_COND(name)                          \
 787static bool name ## _check(struct rtl8169_private *);   \
 788                                                        \
 789static const struct rtl_cond name = {                   \
 790        .check  = name ## _check,                       \
 791        .msg    = #name                                 \
 792};                                                      \
 793                                                        \
 794static bool name ## _check(struct rtl8169_private *tp)
 795
 796static bool rtl_ocp_reg_failure(struct rtl8169_private *tp, u32 reg)
 797{
 798        if (reg & 0xffff0001) {
 799                netif_err(tp, drv, tp->dev, "Invalid ocp reg %x!\n", reg);
 800                return true;
 801        }
 802        return false;
 803}
 804
 805DECLARE_RTL_COND(rtl_ocp_gphy_cond)
 806{
 807        return RTL_R32(tp, GPHY_OCP) & OCPAR_FLAG;
 808}
 809
 810static void r8168_phy_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
 811{
 812        if (rtl_ocp_reg_failure(tp, reg))
 813                return;
 814
 815        RTL_W32(tp, GPHY_OCP, OCPAR_FLAG | (reg << 15) | data);
 816
 817        rtl_udelay_loop_wait_low(tp, &rtl_ocp_gphy_cond, 25, 10);
 818}
 819
 820static int r8168_phy_ocp_read(struct rtl8169_private *tp, u32 reg)
 821{
 822        if (rtl_ocp_reg_failure(tp, reg))
 823                return 0;
 824
 825        RTL_W32(tp, GPHY_OCP, reg << 15);
 826
 827        return rtl_udelay_loop_wait_high(tp, &rtl_ocp_gphy_cond, 25, 10) ?
 828                (RTL_R32(tp, GPHY_OCP) & 0xffff) : -ETIMEDOUT;
 829}
 830
 831static void r8168_mac_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
 832{
 833        if (rtl_ocp_reg_failure(tp, reg))
 834                return;
 835
 836        RTL_W32(tp, OCPDR, OCPAR_FLAG | (reg << 15) | data);
 837}
 838
 839static u16 r8168_mac_ocp_read(struct rtl8169_private *tp, u32 reg)
 840{
 841        if (rtl_ocp_reg_failure(tp, reg))
 842                return 0;
 843
 844        RTL_W32(tp, OCPDR, reg << 15);
 845
 846        return RTL_R32(tp, OCPDR);
 847}
 848
 849#define OCP_STD_PHY_BASE        0xa400
 850
 851static void r8168g_mdio_write(struct rtl8169_private *tp, int reg, int value)
 852{
 853        if (reg == 0x1f) {
 854                tp->ocp_base = value ? value << 4 : OCP_STD_PHY_BASE;
 855                return;
 856        }
 857
 858        if (tp->ocp_base != OCP_STD_PHY_BASE)
 859                reg -= 0x10;
 860
 861        r8168_phy_ocp_write(tp, tp->ocp_base + reg * 2, value);
 862}
 863
 864static int r8168g_mdio_read(struct rtl8169_private *tp, int reg)
 865{
 866        if (tp->ocp_base != OCP_STD_PHY_BASE)
 867                reg -= 0x10;
 868
 869        return r8168_phy_ocp_read(tp, tp->ocp_base + reg * 2);
 870}
 871
 872static void mac_mcu_write(struct rtl8169_private *tp, int reg, int value)
 873{
 874        if (reg == 0x1f) {
 875                tp->ocp_base = value << 4;
 876                return;
 877        }
 878
 879        r8168_mac_ocp_write(tp, tp->ocp_base + reg, value);
 880}
 881
 882static int mac_mcu_read(struct rtl8169_private *tp, int reg)
 883{
 884        return r8168_mac_ocp_read(tp, tp->ocp_base + reg);
 885}
 886
 887DECLARE_RTL_COND(rtl_phyar_cond)
 888{
 889        return RTL_R32(tp, PHYAR) & 0x80000000;
 890}
 891
 892static void r8169_mdio_write(struct rtl8169_private *tp, int reg, int value)
 893{
 894        RTL_W32(tp, PHYAR, 0x80000000 | (reg & 0x1f) << 16 | (value & 0xffff));
 895
 896        rtl_udelay_loop_wait_low(tp, &rtl_phyar_cond, 25, 20);
 897        /*
 898         * According to hardware specs a 20us delay is required after write
 899         * complete indication, but before sending next command.
 900         */
 901        udelay(20);
 902}
 903
 904static int r8169_mdio_read(struct rtl8169_private *tp, int reg)
 905{
 906        int value;
 907
 908        RTL_W32(tp, PHYAR, 0x0 | (reg & 0x1f) << 16);
 909
 910        value = rtl_udelay_loop_wait_high(tp, &rtl_phyar_cond, 25, 20) ?
 911                RTL_R32(tp, PHYAR) & 0xffff : -ETIMEDOUT;
 912
 913        /*
 914         * According to hardware specs a 20us delay is required after read
 915         * complete indication, but before sending next command.
 916         */
 917        udelay(20);
 918
 919        return value;
 920}
 921
 922DECLARE_RTL_COND(rtl_ocpar_cond)
 923{
 924        return RTL_R32(tp, OCPAR) & OCPAR_FLAG;
 925}
 926
 927static void r8168dp_1_mdio_access(struct rtl8169_private *tp, int reg, u32 data)
 928{
 929        RTL_W32(tp, OCPDR, data | ((reg & OCPDR_REG_MASK) << OCPDR_GPHY_REG_SHIFT));
 930        RTL_W32(tp, OCPAR, OCPAR_GPHY_WRITE_CMD);
 931        RTL_W32(tp, EPHY_RXER_NUM, 0);
 932
 933        rtl_udelay_loop_wait_low(tp, &rtl_ocpar_cond, 1000, 100);
 934}
 935
 936static void r8168dp_1_mdio_write(struct rtl8169_private *tp, int reg, int value)
 937{
 938        r8168dp_1_mdio_access(tp, reg,
 939                              OCPDR_WRITE_CMD | (value & OCPDR_DATA_MASK));
 940}
 941
 942static int r8168dp_1_mdio_read(struct rtl8169_private *tp, int reg)
 943{
 944        r8168dp_1_mdio_access(tp, reg, OCPDR_READ_CMD);
 945
 946        mdelay(1);
 947        RTL_W32(tp, OCPAR, OCPAR_GPHY_READ_CMD);
 948        RTL_W32(tp, EPHY_RXER_NUM, 0);
 949
 950        return rtl_udelay_loop_wait_high(tp, &rtl_ocpar_cond, 1000, 100) ?
 951                RTL_R32(tp, OCPDR) & OCPDR_DATA_MASK : -ETIMEDOUT;
 952}
 953
 954#define R8168DP_1_MDIO_ACCESS_BIT       0x00020000
 955
 956static void r8168dp_2_mdio_start(struct rtl8169_private *tp)
 957{
 958        RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
 959}
 960
 961static void r8168dp_2_mdio_stop(struct rtl8169_private *tp)
 962{
 963        RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
 964}
 965
 966static void r8168dp_2_mdio_write(struct rtl8169_private *tp, int reg, int value)
 967{
 968        r8168dp_2_mdio_start(tp);
 969
 970        r8169_mdio_write(tp, reg, value);
 971
 972        r8168dp_2_mdio_stop(tp);
 973}
 974
 975static int r8168dp_2_mdio_read(struct rtl8169_private *tp, int reg)
 976{
 977        int value;
 978
 979        r8168dp_2_mdio_start(tp);
 980
 981        value = r8169_mdio_read(tp, reg);
 982
 983        r8168dp_2_mdio_stop(tp);
 984
 985        return value;
 986}
 987
 988static void rtl_writephy(struct rtl8169_private *tp, int location, int val)
 989{
 990        switch (tp->mac_version) {
 991        case RTL_GIGA_MAC_VER_27:
 992                r8168dp_1_mdio_write(tp, location, val);
 993                break;
 994        case RTL_GIGA_MAC_VER_28:
 995        case RTL_GIGA_MAC_VER_31:
 996                r8168dp_2_mdio_write(tp, location, val);
 997                break;
 998        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
 999                r8168g_mdio_write(tp, location, val);
1000                break;
1001        default:
1002                r8169_mdio_write(tp, location, val);
1003                break;
1004        }
1005}
1006
1007static int rtl_readphy(struct rtl8169_private *tp, int location)
1008{
1009        switch (tp->mac_version) {
1010        case RTL_GIGA_MAC_VER_27:
1011                return r8168dp_1_mdio_read(tp, location);
1012        case RTL_GIGA_MAC_VER_28:
1013        case RTL_GIGA_MAC_VER_31:
1014                return r8168dp_2_mdio_read(tp, location);
1015        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
1016                return r8168g_mdio_read(tp, location);
1017        default:
1018                return r8169_mdio_read(tp, location);
1019        }
1020}
1021
1022static void rtl_patchphy(struct rtl8169_private *tp, int reg_addr, int value)
1023{
1024        rtl_writephy(tp, reg_addr, rtl_readphy(tp, reg_addr) | value);
1025}
1026
1027static void rtl_w0w1_phy(struct rtl8169_private *tp, int reg_addr, int p, int m)
1028{
1029        int val;
1030
1031        val = rtl_readphy(tp, reg_addr);
1032        rtl_writephy(tp, reg_addr, (val & ~m) | p);
1033}
1034
1035DECLARE_RTL_COND(rtl_ephyar_cond)
1036{
1037        return RTL_R32(tp, EPHYAR) & EPHYAR_FLAG;
1038}
1039
1040static void rtl_ephy_write(struct rtl8169_private *tp, int reg_addr, int value)
1041{
1042        RTL_W32(tp, EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
1043                (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
1044
1045        rtl_udelay_loop_wait_low(tp, &rtl_ephyar_cond, 10, 100);
1046
1047        udelay(10);
1048}
1049
1050static u16 rtl_ephy_read(struct rtl8169_private *tp, int reg_addr)
1051{
1052        RTL_W32(tp, EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
1053
1054        return rtl_udelay_loop_wait_high(tp, &rtl_ephyar_cond, 10, 100) ?
1055                RTL_R32(tp, EPHYAR) & EPHYAR_DATA_MASK : ~0;
1056}
1057
1058DECLARE_RTL_COND(rtl_eriar_cond)
1059{
1060        return RTL_R32(tp, ERIAR) & ERIAR_FLAG;
1061}
1062
1063static void _rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
1064                           u32 val, int type)
1065{
1066        BUG_ON((addr & 3) || (mask == 0));
1067        RTL_W32(tp, ERIDR, val);
1068        RTL_W32(tp, ERIAR, ERIAR_WRITE_CMD | type | mask | addr);
1069
1070        rtl_udelay_loop_wait_low(tp, &rtl_eriar_cond, 100, 100);
1071}
1072
1073static void rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
1074                          u32 val)
1075{
1076        _rtl_eri_write(tp, addr, mask, val, ERIAR_EXGMAC);
1077}
1078
1079static u32 _rtl_eri_read(struct rtl8169_private *tp, int addr, int type)
1080{
1081        RTL_W32(tp, ERIAR, ERIAR_READ_CMD | type | ERIAR_MASK_1111 | addr);
1082
1083        return rtl_udelay_loop_wait_high(tp, &rtl_eriar_cond, 100, 100) ?
1084                RTL_R32(tp, ERIDR) : ~0;
1085}
1086
1087static u32 rtl_eri_read(struct rtl8169_private *tp, int addr)
1088{
1089        return _rtl_eri_read(tp, addr, ERIAR_EXGMAC);
1090}
1091
1092static void rtl_w0w1_eri(struct rtl8169_private *tp, int addr, u32 mask, u32 p,
1093                         u32 m)
1094{
1095        u32 val;
1096
1097        val = rtl_eri_read(tp, addr);
1098        rtl_eri_write(tp, addr, mask, (val & ~m) | p);
1099}
1100
1101static void rtl_eri_set_bits(struct rtl8169_private *tp, int addr, u32 mask,
1102                             u32 p)
1103{
1104        rtl_w0w1_eri(tp, addr, mask, p, 0);
1105}
1106
1107static void rtl_eri_clear_bits(struct rtl8169_private *tp, int addr, u32 mask,
1108                               u32 m)
1109{
1110        rtl_w0w1_eri(tp, addr, mask, 0, m);
1111}
1112
1113static u32 r8168dp_ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
1114{
1115        RTL_W32(tp, OCPAR, ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
1116        return rtl_udelay_loop_wait_high(tp, &rtl_ocpar_cond, 100, 20) ?
1117                RTL_R32(tp, OCPDR) : ~0;
1118}
1119
1120static u32 r8168ep_ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
1121{
1122        return _rtl_eri_read(tp, reg, ERIAR_OOB);
1123}
1124
1125static void r8168dp_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
1126                              u32 data)
1127{
1128        RTL_W32(tp, OCPDR, data);
1129        RTL_W32(tp, OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
1130        rtl_udelay_loop_wait_low(tp, &rtl_ocpar_cond, 100, 20);
1131}
1132
1133static void r8168ep_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
1134                              u32 data)
1135{
1136        _rtl_eri_write(tp, reg, ((u32)mask & 0x0f) << ERIAR_MASK_SHIFT,
1137                       data, ERIAR_OOB);
1138}
1139
1140static void r8168dp_oob_notify(struct rtl8169_private *tp, u8 cmd)
1141{
1142        rtl_eri_write(tp, 0xe8, ERIAR_MASK_0001, cmd);
1143
1144        r8168dp_ocp_write(tp, 0x1, 0x30, 0x00000001);
1145}
1146
1147#define OOB_CMD_RESET           0x00
1148#define OOB_CMD_DRIVER_START    0x05
1149#define OOB_CMD_DRIVER_STOP     0x06
1150
1151static u16 rtl8168_get_ocp_reg(struct rtl8169_private *tp)
1152{
1153        return (tp->mac_version == RTL_GIGA_MAC_VER_31) ? 0xb8 : 0x10;
1154}
1155
1156DECLARE_RTL_COND(rtl_dp_ocp_read_cond)
1157{
1158        u16 reg;
1159
1160        reg = rtl8168_get_ocp_reg(tp);
1161
1162        return r8168dp_ocp_read(tp, 0x0f, reg) & 0x00000800;
1163}
1164
1165DECLARE_RTL_COND(rtl_ep_ocp_read_cond)
1166{
1167        return r8168ep_ocp_read(tp, 0x0f, 0x124) & 0x00000001;
1168}
1169
1170DECLARE_RTL_COND(rtl_ocp_tx_cond)
1171{
1172        return RTL_R8(tp, IBISR0) & 0x20;
1173}
1174
1175static void rtl8168ep_stop_cmac(struct rtl8169_private *tp)
1176{
1177        RTL_W8(tp, IBCR2, RTL_R8(tp, IBCR2) & ~0x01);
1178        rtl_msleep_loop_wait_high(tp, &rtl_ocp_tx_cond, 50, 2000);
1179        RTL_W8(tp, IBISR0, RTL_R8(tp, IBISR0) | 0x20);
1180        RTL_W8(tp, IBCR0, RTL_R8(tp, IBCR0) & ~0x01);
1181}
1182
1183static void rtl8168dp_driver_start(struct rtl8169_private *tp)
1184{
1185        r8168dp_oob_notify(tp, OOB_CMD_DRIVER_START);
1186        rtl_msleep_loop_wait_high(tp, &rtl_dp_ocp_read_cond, 10, 10);
1187}
1188
1189static void rtl8168ep_driver_start(struct rtl8169_private *tp)
1190{
1191        r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_START);
1192        r8168ep_ocp_write(tp, 0x01, 0x30,
1193                          r8168ep_ocp_read(tp, 0x01, 0x30) | 0x01);
1194        rtl_msleep_loop_wait_high(tp, &rtl_ep_ocp_read_cond, 10, 10);
1195}
1196
1197static void rtl8168_driver_start(struct rtl8169_private *tp)
1198{
1199        switch (tp->mac_version) {
1200        case RTL_GIGA_MAC_VER_27:
1201        case RTL_GIGA_MAC_VER_28:
1202        case RTL_GIGA_MAC_VER_31:
1203                rtl8168dp_driver_start(tp);
1204                break;
1205        case RTL_GIGA_MAC_VER_49:
1206        case RTL_GIGA_MAC_VER_50:
1207        case RTL_GIGA_MAC_VER_51:
1208                rtl8168ep_driver_start(tp);
1209                break;
1210        default:
1211                BUG();
1212                break;
1213        }
1214}
1215
1216static void rtl8168dp_driver_stop(struct rtl8169_private *tp)
1217{
1218        r8168dp_oob_notify(tp, OOB_CMD_DRIVER_STOP);
1219        rtl_msleep_loop_wait_low(tp, &rtl_dp_ocp_read_cond, 10, 10);
1220}
1221
1222static void rtl8168ep_driver_stop(struct rtl8169_private *tp)
1223{
1224        rtl8168ep_stop_cmac(tp);
1225        r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_STOP);
1226        r8168ep_ocp_write(tp, 0x01, 0x30,
1227                          r8168ep_ocp_read(tp, 0x01, 0x30) | 0x01);
1228        rtl_msleep_loop_wait_low(tp, &rtl_ep_ocp_read_cond, 10, 10);
1229}
1230
1231static void rtl8168_driver_stop(struct rtl8169_private *tp)
1232{
1233        switch (tp->mac_version) {
1234        case RTL_GIGA_MAC_VER_27:
1235        case RTL_GIGA_MAC_VER_28:
1236        case RTL_GIGA_MAC_VER_31:
1237                rtl8168dp_driver_stop(tp);
1238                break;
1239        case RTL_GIGA_MAC_VER_49:
1240        case RTL_GIGA_MAC_VER_50:
1241        case RTL_GIGA_MAC_VER_51:
1242                rtl8168ep_driver_stop(tp);
1243                break;
1244        default:
1245                BUG();
1246                break;
1247        }
1248}
1249
1250static bool r8168dp_check_dash(struct rtl8169_private *tp)
1251{
1252        u16 reg = rtl8168_get_ocp_reg(tp);
1253
1254        return !!(r8168dp_ocp_read(tp, 0x0f, reg) & 0x00008000);
1255}
1256
1257static bool r8168ep_check_dash(struct rtl8169_private *tp)
1258{
1259        return !!(r8168ep_ocp_read(tp, 0x0f, 0x128) & 0x00000001);
1260}
1261
1262static bool r8168_check_dash(struct rtl8169_private *tp)
1263{
1264        switch (tp->mac_version) {
1265        case RTL_GIGA_MAC_VER_27:
1266        case RTL_GIGA_MAC_VER_28:
1267        case RTL_GIGA_MAC_VER_31:
1268                return r8168dp_check_dash(tp);
1269        case RTL_GIGA_MAC_VER_49:
1270        case RTL_GIGA_MAC_VER_50:
1271        case RTL_GIGA_MAC_VER_51:
1272                return r8168ep_check_dash(tp);
1273        default:
1274                return false;
1275        }
1276}
1277
1278static void rtl_reset_packet_filter(struct rtl8169_private *tp)
1279{
1280        rtl_eri_clear_bits(tp, 0xdc, ERIAR_MASK_0001, BIT(0));
1281        rtl_eri_set_bits(tp, 0xdc, ERIAR_MASK_0001, BIT(0));
1282}
1283
1284DECLARE_RTL_COND(rtl_efusear_cond)
1285{
1286        return RTL_R32(tp, EFUSEAR) & EFUSEAR_FLAG;
1287}
1288
1289static u8 rtl8168d_efuse_read(struct rtl8169_private *tp, int reg_addr)
1290{
1291        RTL_W32(tp, EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
1292
1293        return rtl_udelay_loop_wait_high(tp, &rtl_efusear_cond, 100, 300) ?
1294                RTL_R32(tp, EFUSEAR) & EFUSEAR_DATA_MASK : ~0;
1295}
1296
1297static void rtl_ack_events(struct rtl8169_private *tp, u16 bits)
1298{
1299        RTL_W16(tp, IntrStatus, bits);
1300}
1301
1302static void rtl_irq_disable(struct rtl8169_private *tp)
1303{
1304        RTL_W16(tp, IntrMask, 0);
1305        tp->irq_enabled = 0;
1306}
1307
1308#define RTL_EVENT_NAPI_RX       (RxOK | RxErr)
1309#define RTL_EVENT_NAPI_TX       (TxOK | TxErr)
1310#define RTL_EVENT_NAPI          (RTL_EVENT_NAPI_RX | RTL_EVENT_NAPI_TX)
1311
1312static void rtl_irq_enable(struct rtl8169_private *tp)
1313{
1314        tp->irq_enabled = 1;
1315        RTL_W16(tp, IntrMask, tp->irq_mask);
1316}
1317
1318static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
1319{
1320        rtl_irq_disable(tp);
1321        rtl_ack_events(tp, 0xffff);
1322        /* PCI commit */
1323        RTL_R8(tp, ChipCmd);
1324}
1325
1326static void rtl_link_chg_patch(struct rtl8169_private *tp)
1327{
1328        struct net_device *dev = tp->dev;
1329        struct phy_device *phydev = tp->phydev;
1330
1331        if (!netif_running(dev))
1332                return;
1333
1334        if (tp->mac_version == RTL_GIGA_MAC_VER_34 ||
1335            tp->mac_version == RTL_GIGA_MAC_VER_38) {
1336                if (phydev->speed == SPEED_1000) {
1337                        rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
1338                        rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1339                } else if (phydev->speed == SPEED_100) {
1340                        rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1341                        rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1342                } else {
1343                        rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1344                        rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
1345                }
1346                rtl_reset_packet_filter(tp);
1347        } else if (tp->mac_version == RTL_GIGA_MAC_VER_35 ||
1348                   tp->mac_version == RTL_GIGA_MAC_VER_36) {
1349                if (phydev->speed == SPEED_1000) {
1350                        rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
1351                        rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1352                } else {
1353                        rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1354                        rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
1355                }
1356        } else if (tp->mac_version == RTL_GIGA_MAC_VER_37) {
1357                if (phydev->speed == SPEED_10) {
1358                        rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x4d02);
1359                        rtl_eri_write(tp, 0x1dc, ERIAR_MASK_0011, 0x0060a);
1360                } else {
1361                        rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
1362                }
1363        }
1364}
1365
1366#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
1367
1368static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1369{
1370        struct rtl8169_private *tp = netdev_priv(dev);
1371
1372        rtl_lock_work(tp);
1373        wol->supported = WAKE_ANY;
1374        wol->wolopts = tp->saved_wolopts;
1375        rtl_unlock_work(tp);
1376}
1377
1378static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
1379{
1380        unsigned int i, tmp;
1381        static const struct {
1382                u32 opt;
1383                u16 reg;
1384                u8  mask;
1385        } cfg[] = {
1386                { WAKE_PHY,   Config3, LinkUp },
1387                { WAKE_UCAST, Config5, UWF },
1388                { WAKE_BCAST, Config5, BWF },
1389                { WAKE_MCAST, Config5, MWF },
1390                { WAKE_ANY,   Config5, LanWake },
1391                { WAKE_MAGIC, Config3, MagicPacket }
1392        };
1393        u8 options;
1394
1395        rtl_unlock_config_regs(tp);
1396
1397        if (rtl_is_8168evl_up(tp)) {
1398                tmp = ARRAY_SIZE(cfg) - 1;
1399                if (wolopts & WAKE_MAGIC)
1400                        rtl_eri_set_bits(tp, 0x0dc, ERIAR_MASK_0100,
1401                                         MagicPacket_v2);
1402                else
1403                        rtl_eri_clear_bits(tp, 0x0dc, ERIAR_MASK_0100,
1404                                           MagicPacket_v2);
1405        } else {
1406                tmp = ARRAY_SIZE(cfg);
1407        }
1408
1409        for (i = 0; i < tmp; i++) {
1410                options = RTL_R8(tp, cfg[i].reg) & ~cfg[i].mask;
1411                if (wolopts & cfg[i].opt)
1412                        options |= cfg[i].mask;
1413                RTL_W8(tp, cfg[i].reg, options);
1414        }
1415
1416        switch (tp->mac_version) {
1417        case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_17:
1418                options = RTL_R8(tp, Config1) & ~PMEnable;
1419                if (wolopts)
1420                        options |= PMEnable;
1421                RTL_W8(tp, Config1, options);
1422                break;
1423        default:
1424                options = RTL_R8(tp, Config2) & ~PME_SIGNAL;
1425                if (wolopts)
1426                        options |= PME_SIGNAL;
1427                RTL_W8(tp, Config2, options);
1428                break;
1429        }
1430
1431        rtl_lock_config_regs(tp);
1432
1433        device_set_wakeup_enable(tp_to_dev(tp), wolopts);
1434}
1435
1436static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1437{
1438        struct rtl8169_private *tp = netdev_priv(dev);
1439        struct device *d = tp_to_dev(tp);
1440
1441        if (wol->wolopts & ~WAKE_ANY)
1442                return -EINVAL;
1443
1444        pm_runtime_get_noresume(d);
1445
1446        rtl_lock_work(tp);
1447
1448        tp->saved_wolopts = wol->wolopts;
1449
1450        if (pm_runtime_active(d))
1451                __rtl8169_set_wol(tp, tp->saved_wolopts);
1452
1453        rtl_unlock_work(tp);
1454
1455        pm_runtime_put_noidle(d);
1456
1457        return 0;
1458}
1459
1460static void rtl8169_get_drvinfo(struct net_device *dev,
1461                                struct ethtool_drvinfo *info)
1462{
1463        struct rtl8169_private *tp = netdev_priv(dev);
1464        struct rtl_fw *rtl_fw = tp->rtl_fw;
1465
1466        strlcpy(info->driver, MODULENAME, sizeof(info->driver));
1467        strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info));
1468        BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
1469        if (rtl_fw)
1470                strlcpy(info->fw_version, rtl_fw->version,
1471                        sizeof(info->fw_version));
1472}
1473
1474static int rtl8169_get_regs_len(struct net_device *dev)
1475{
1476        return R8169_REGS_SIZE;
1477}
1478
1479static netdev_features_t rtl8169_fix_features(struct net_device *dev,
1480        netdev_features_t features)
1481{
1482        struct rtl8169_private *tp = netdev_priv(dev);
1483
1484        if (dev->mtu > TD_MSS_MAX)
1485                features &= ~NETIF_F_ALL_TSO;
1486
1487        if (dev->mtu > JUMBO_1K &&
1488            tp->mac_version > RTL_GIGA_MAC_VER_06)
1489                features &= ~NETIF_F_IP_CSUM;
1490
1491        return features;
1492}
1493
1494static int rtl8169_set_features(struct net_device *dev,
1495                                netdev_features_t features)
1496{
1497        struct rtl8169_private *tp = netdev_priv(dev);
1498        u32 rx_config;
1499
1500        rtl_lock_work(tp);
1501
1502        rx_config = RTL_R32(tp, RxConfig);
1503        if (features & NETIF_F_RXALL)
1504                rx_config |= (AcceptErr | AcceptRunt);
1505        else
1506                rx_config &= ~(AcceptErr | AcceptRunt);
1507
1508        RTL_W32(tp, RxConfig, rx_config);
1509
1510        if (features & NETIF_F_RXCSUM)
1511                tp->cp_cmd |= RxChkSum;
1512        else
1513                tp->cp_cmd &= ~RxChkSum;
1514
1515        if (features & NETIF_F_HW_VLAN_CTAG_RX)
1516                tp->cp_cmd |= RxVlan;
1517        else
1518                tp->cp_cmd &= ~RxVlan;
1519
1520        RTL_W16(tp, CPlusCmd, tp->cp_cmd);
1521        RTL_R16(tp, CPlusCmd);
1522
1523        rtl_unlock_work(tp);
1524
1525        return 0;
1526}
1527
1528static inline u32 rtl8169_tx_vlan_tag(struct sk_buff *skb)
1529{
1530        return (skb_vlan_tag_present(skb)) ?
1531                TxVlanTag | swab16(skb_vlan_tag_get(skb)) : 0x00;
1532}
1533
1534static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)
1535{
1536        u32 opts2 = le32_to_cpu(desc->opts2);
1537
1538        if (opts2 & RxVlanTag)
1539                __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), swab16(opts2 & 0xffff));
1540}
1541
1542static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1543                             void *p)
1544{
1545        struct rtl8169_private *tp = netdev_priv(dev);
1546        u32 __iomem *data = tp->mmio_addr;
1547        u32 *dw = p;
1548        int i;
1549
1550        rtl_lock_work(tp);
1551        for (i = 0; i < R8169_REGS_SIZE; i += 4)
1552                memcpy_fromio(dw++, data++, 4);
1553        rtl_unlock_work(tp);
1554}
1555
1556static u32 rtl8169_get_msglevel(struct net_device *dev)
1557{
1558        struct rtl8169_private *tp = netdev_priv(dev);
1559
1560        return tp->msg_enable;
1561}
1562
1563static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
1564{
1565        struct rtl8169_private *tp = netdev_priv(dev);
1566
1567        tp->msg_enable = value;
1568}
1569
1570static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1571        "tx_packets",
1572        "rx_packets",
1573        "tx_errors",
1574        "rx_errors",
1575        "rx_missed",
1576        "align_errors",
1577        "tx_single_collisions",
1578        "tx_multi_collisions",
1579        "unicast",
1580        "broadcast",
1581        "multicast",
1582        "tx_aborted",
1583        "tx_underrun",
1584};
1585
1586static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1587{
1588        switch (sset) {
1589        case ETH_SS_STATS:
1590                return ARRAY_SIZE(rtl8169_gstrings);
1591        default:
1592                return -EOPNOTSUPP;
1593        }
1594}
1595
1596DECLARE_RTL_COND(rtl_counters_cond)
1597{
1598        return RTL_R32(tp, CounterAddrLow) & (CounterReset | CounterDump);
1599}
1600
1601static bool rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
1602{
1603        dma_addr_t paddr = tp->counters_phys_addr;
1604        u32 cmd;
1605
1606        RTL_W32(tp, CounterAddrHigh, (u64)paddr >> 32);
1607        RTL_R32(tp, CounterAddrHigh);
1608        cmd = (u64)paddr & DMA_BIT_MASK(32);
1609        RTL_W32(tp, CounterAddrLow, cmd);
1610        RTL_W32(tp, CounterAddrLow, cmd | counter_cmd);
1611
1612        return rtl_udelay_loop_wait_low(tp, &rtl_counters_cond, 10, 1000);
1613}
1614
1615static bool rtl8169_reset_counters(struct rtl8169_private *tp)
1616{
1617        /*
1618         * Versions prior to RTL_GIGA_MAC_VER_19 don't support resetting the
1619         * tally counters.
1620         */
1621        if (tp->mac_version < RTL_GIGA_MAC_VER_19)
1622                return true;
1623
1624        return rtl8169_do_counters(tp, CounterReset);
1625}
1626
1627static bool rtl8169_update_counters(struct rtl8169_private *tp)
1628{
1629        u8 val = RTL_R8(tp, ChipCmd);
1630
1631        /*
1632         * Some chips are unable to dump tally counters when the receiver
1633         * is disabled. If 0xff chip may be in a PCI power-save state.
1634         */
1635        if (!(val & CmdRxEnb) || val == 0xff)
1636                return true;
1637
1638        return rtl8169_do_counters(tp, CounterDump);
1639}
1640
1641static bool rtl8169_init_counter_offsets(struct rtl8169_private *tp)
1642{
1643        struct rtl8169_counters *counters = tp->counters;
1644        bool ret = false;
1645
1646        /*
1647         * rtl8169_init_counter_offsets is called from rtl_open.  On chip
1648         * versions prior to RTL_GIGA_MAC_VER_19 the tally counters are only
1649         * reset by a power cycle, while the counter values collected by the
1650         * driver are reset at every driver unload/load cycle.
1651         *
1652         * To make sure the HW values returned by @get_stats64 match the SW
1653         * values, we collect the initial values at first open(*) and use them
1654         * as offsets to normalize the values returned by @get_stats64.
1655         *
1656         * (*) We can't call rtl8169_init_counter_offsets from rtl_init_one
1657         * for the reason stated in rtl8169_update_counters; CmdRxEnb is only
1658         * set at open time by rtl_hw_start.
1659         */
1660
1661        if (tp->tc_offset.inited)
1662                return true;
1663
1664        /* If both, reset and update fail, propagate to caller. */
1665        if (rtl8169_reset_counters(tp))
1666                ret = true;
1667
1668        if (rtl8169_update_counters(tp))
1669                ret = true;
1670
1671        tp->tc_offset.tx_errors = counters->tx_errors;
1672        tp->tc_offset.tx_multi_collision = counters->tx_multi_collision;
1673        tp->tc_offset.tx_aborted = counters->tx_aborted;
1674        tp->tc_offset.inited = true;
1675
1676        return ret;
1677}
1678
1679static void rtl8169_get_ethtool_stats(struct net_device *dev,
1680                                      struct ethtool_stats *stats, u64 *data)
1681{
1682        struct rtl8169_private *tp = netdev_priv(dev);
1683        struct device *d = tp_to_dev(tp);
1684        struct rtl8169_counters *counters = tp->counters;
1685
1686        ASSERT_RTNL();
1687
1688        pm_runtime_get_noresume(d);
1689
1690        if (pm_runtime_active(d))
1691                rtl8169_update_counters(tp);
1692
1693        pm_runtime_put_noidle(d);
1694
1695        data[0] = le64_to_cpu(counters->tx_packets);
1696        data[1] = le64_to_cpu(counters->rx_packets);
1697        data[2] = le64_to_cpu(counters->tx_errors);
1698        data[3] = le32_to_cpu(counters->rx_errors);
1699        data[4] = le16_to_cpu(counters->rx_missed);
1700        data[5] = le16_to_cpu(counters->align_errors);
1701        data[6] = le32_to_cpu(counters->tx_one_collision);
1702        data[7] = le32_to_cpu(counters->tx_multi_collision);
1703        data[8] = le64_to_cpu(counters->rx_unicast);
1704        data[9] = le64_to_cpu(counters->rx_broadcast);
1705        data[10] = le32_to_cpu(counters->rx_multicast);
1706        data[11] = le16_to_cpu(counters->tx_aborted);
1707        data[12] = le16_to_cpu(counters->tx_underun);
1708}
1709
1710static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1711{
1712        switch(stringset) {
1713        case ETH_SS_STATS:
1714                memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1715                break;
1716        }
1717}
1718
1719/*
1720 * Interrupt coalescing
1721 *
1722 * > 1 - the availability of the IntrMitigate (0xe2) register through the
1723 * >     8169, 8168 and 810x line of chipsets
1724 *
1725 * 8169, 8168, and 8136(810x) serial chipsets support it.
1726 *
1727 * > 2 - the Tx timer unit at gigabit speed
1728 *
1729 * The unit of the timer depends on both the speed and the setting of CPlusCmd
1730 * (0xe0) bit 1 and bit 0.
1731 *
1732 * For 8169
1733 * bit[1:0] \ speed        1000M           100M            10M
1734 * 0 0                     320ns           2.56us          40.96us
1735 * 0 1                     2.56us          20.48us         327.7us
1736 * 1 0                     5.12us          40.96us         655.4us
1737 * 1 1                     10.24us         81.92us         1.31ms
1738 *
1739 * For the other
1740 * bit[1:0] \ speed        1000M           100M            10M
1741 * 0 0                     5us             2.56us          40.96us
1742 * 0 1                     40us            20.48us         327.7us
1743 * 1 0                     80us            40.96us         655.4us
1744 * 1 1                     160us           81.92us         1.31ms
1745 */
1746
1747/* rx/tx scale factors for one particular CPlusCmd[0:1] value */
1748struct rtl_coalesce_scale {
1749        /* Rx / Tx */
1750        u32 nsecs[2];
1751};
1752
1753/* rx/tx scale factors for all CPlusCmd[0:1] cases */
1754struct rtl_coalesce_info {
1755        u32 speed;
1756        struct rtl_coalesce_scale scalev[4];    /* each CPlusCmd[0:1] case */
1757};
1758
1759/* produce (r,t) pairs with each being in series of *1, *8, *8*2, *8*2*2 */
1760#define rxtx_x1822(r, t) {              \
1761        {{(r),          (t)}},          \
1762        {{(r)*8,        (t)*8}},        \
1763        {{(r)*8*2,      (t)*8*2}},      \
1764        {{(r)*8*2*2,    (t)*8*2*2}},    \
1765}
1766static const struct rtl_coalesce_info rtl_coalesce_info_8169[] = {
1767        /* speed        delays:     rx00   tx00 */
1768        { SPEED_10,     rxtx_x1822(40960, 40960)        },
1769        { SPEED_100,    rxtx_x1822( 2560,  2560)        },
1770        { SPEED_1000,   rxtx_x1822(  320,   320)        },
1771        { 0 },
1772};
1773
1774static const struct rtl_coalesce_info rtl_coalesce_info_8168_8136[] = {
1775        /* speed        delays:     rx00   tx00 */
1776        { SPEED_10,     rxtx_x1822(40960, 40960)        },
1777        { SPEED_100,    rxtx_x1822( 2560,  2560)        },
1778        { SPEED_1000,   rxtx_x1822( 5000,  5000)        },
1779        { 0 },
1780};
1781#undef rxtx_x1822
1782
1783/* get rx/tx scale vector corresponding to current speed */
1784static const struct rtl_coalesce_info *rtl_coalesce_info(struct net_device *dev)
1785{
1786        struct rtl8169_private *tp = netdev_priv(dev);
1787        const struct rtl_coalesce_info *ci;
1788
1789        if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
1790                ci = rtl_coalesce_info_8169;
1791        else
1792                ci = rtl_coalesce_info_8168_8136;
1793
1794        for (; ci->speed; ci++) {
1795                if (tp->phydev->speed == ci->speed)
1796                        return ci;
1797        }
1798
1799        return ERR_PTR(-ELNRNG);
1800}
1801
1802static int rtl_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1803{
1804        struct rtl8169_private *tp = netdev_priv(dev);
1805        const struct rtl_coalesce_info *ci;
1806        const struct rtl_coalesce_scale *scale;
1807        struct {
1808                u32 *max_frames;
1809                u32 *usecs;
1810        } coal_settings [] = {
1811                { &ec->rx_max_coalesced_frames, &ec->rx_coalesce_usecs },
1812                { &ec->tx_max_coalesced_frames, &ec->tx_coalesce_usecs }
1813        }, *p = coal_settings;
1814        int i;
1815        u16 w;
1816
1817        memset(ec, 0, sizeof(*ec));
1818
1819        /* get rx/tx scale corresponding to current speed and CPlusCmd[0:1] */
1820        ci = rtl_coalesce_info(dev);
1821        if (IS_ERR(ci))
1822                return PTR_ERR(ci);
1823
1824        scale = &ci->scalev[tp->cp_cmd & INTT_MASK];
1825
1826        /* read IntrMitigate and adjust according to scale */
1827        for (w = RTL_R16(tp, IntrMitigate); w; w >>= RTL_COALESCE_SHIFT, p++) {
1828                *p->max_frames = (w & RTL_COALESCE_MASK) << 2;
1829                w >>= RTL_COALESCE_SHIFT;
1830                *p->usecs = w & RTL_COALESCE_MASK;
1831        }
1832
1833        for (i = 0; i < 2; i++) {
1834                p = coal_settings + i;
1835                *p->usecs = (*p->usecs * scale->nsecs[i]) / 1000;
1836
1837                /*
1838                 * ethtool_coalesce says it is illegal to set both usecs and
1839                 * max_frames to 0.
1840                 */
1841                if (!*p->usecs && !*p->max_frames)
1842                        *p->max_frames = 1;
1843        }
1844
1845        return 0;
1846}
1847
1848/* choose appropriate scale factor and CPlusCmd[0:1] for (speed, nsec) */
1849static const struct rtl_coalesce_scale *rtl_coalesce_choose_scale(
1850                        struct net_device *dev, u32 nsec, u16 *cp01)
1851{
1852        const struct rtl_coalesce_info *ci;
1853        u16 i;
1854
1855        ci = rtl_coalesce_info(dev);
1856        if (IS_ERR(ci))
1857                return ERR_CAST(ci);
1858
1859        for (i = 0; i < 4; i++) {
1860                u32 rxtx_maxscale = max(ci->scalev[i].nsecs[0],
1861                                        ci->scalev[i].nsecs[1]);
1862                if (nsec <= rxtx_maxscale * RTL_COALESCE_T_MAX) {
1863                        *cp01 = i;
1864                        return &ci->scalev[i];
1865                }
1866        }
1867
1868        return ERR_PTR(-EINVAL);
1869}
1870
1871static int rtl_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1872{
1873        struct rtl8169_private *tp = netdev_priv(dev);
1874        const struct rtl_coalesce_scale *scale;
1875        struct {
1876                u32 frames;
1877                u32 usecs;
1878        } coal_settings [] = {
1879                { ec->rx_max_coalesced_frames, ec->rx_coalesce_usecs },
1880                { ec->tx_max_coalesced_frames, ec->tx_coalesce_usecs }
1881        }, *p = coal_settings;
1882        u16 w = 0, cp01;
1883        int i;
1884
1885        scale = rtl_coalesce_choose_scale(dev,
1886                        max(p[0].usecs, p[1].usecs) * 1000, &cp01);
1887        if (IS_ERR(scale))
1888                return PTR_ERR(scale);
1889
1890        for (i = 0; i < 2; i++, p++) {
1891                u32 units;
1892
1893                /*
1894                 * accept max_frames=1 we returned in rtl_get_coalesce.
1895                 * accept it not only when usecs=0 because of e.g. the following scenario:
1896                 *
1897                 * - both rx_usecs=0 & rx_frames=0 in hardware (no delay on RX)
1898                 * - rtl_get_coalesce returns rx_usecs=0, rx_frames=1
1899                 * - then user does `ethtool -C eth0 rx-usecs 100`
1900                 *
1901                 * since ethtool sends to kernel whole ethtool_coalesce
1902                 * settings, if we do not handle rx_usecs=!0, rx_frames=1
1903                 * we'll reject it below in `frames % 4 != 0`.
1904                 */
1905                if (p->frames == 1) {
1906                        p->frames = 0;
1907                }
1908
1909                units = p->usecs * 1000 / scale->nsecs[i];
1910                if (p->frames > RTL_COALESCE_FRAME_MAX || p->frames % 4)
1911                        return -EINVAL;
1912
1913                w <<= RTL_COALESCE_SHIFT;
1914                w |= units;
1915                w <<= RTL_COALESCE_SHIFT;
1916                w |= p->frames >> 2;
1917        }
1918
1919        rtl_lock_work(tp);
1920
1921        RTL_W16(tp, IntrMitigate, swab16(w));
1922
1923        tp->cp_cmd = (tp->cp_cmd & ~INTT_MASK) | cp01;
1924        RTL_W16(tp, CPlusCmd, tp->cp_cmd);
1925        RTL_R16(tp, CPlusCmd);
1926
1927        rtl_unlock_work(tp);
1928
1929        return 0;
1930}
1931
1932static int rtl_get_eee_supp(struct rtl8169_private *tp)
1933{
1934        struct phy_device *phydev = tp->phydev;
1935        int ret;
1936
1937        switch (tp->mac_version) {
1938        case RTL_GIGA_MAC_VER_34:
1939        case RTL_GIGA_MAC_VER_35:
1940        case RTL_GIGA_MAC_VER_36:
1941        case RTL_GIGA_MAC_VER_38:
1942                ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
1943                break;
1944        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
1945                ret = phy_read_paged(phydev, 0x0a5c, 0x12);
1946                break;
1947        default:
1948                ret = -EPROTONOSUPPORT;
1949                break;
1950        }
1951
1952        return ret;
1953}
1954
1955static int rtl_get_eee_lpadv(struct rtl8169_private *tp)
1956{
1957        struct phy_device *phydev = tp->phydev;
1958        int ret;
1959
1960        switch (tp->mac_version) {
1961        case RTL_GIGA_MAC_VER_34:
1962        case RTL_GIGA_MAC_VER_35:
1963        case RTL_GIGA_MAC_VER_36:
1964        case RTL_GIGA_MAC_VER_38:
1965                ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE);
1966                break;
1967        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
1968                ret = phy_read_paged(phydev, 0x0a5d, 0x11);
1969                break;
1970        default:
1971                ret = -EPROTONOSUPPORT;
1972                break;
1973        }
1974
1975        return ret;
1976}
1977
1978static int rtl_get_eee_adv(struct rtl8169_private *tp)
1979{
1980        struct phy_device *phydev = tp->phydev;
1981        int ret;
1982
1983        switch (tp->mac_version) {
1984        case RTL_GIGA_MAC_VER_34:
1985        case RTL_GIGA_MAC_VER_35:
1986        case RTL_GIGA_MAC_VER_36:
1987        case RTL_GIGA_MAC_VER_38:
1988                ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
1989                break;
1990        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
1991                ret = phy_read_paged(phydev, 0x0a5d, 0x10);
1992                break;
1993        default:
1994                ret = -EPROTONOSUPPORT;
1995                break;
1996        }
1997
1998        return ret;
1999}
2000
2001static int rtl_set_eee_adv(struct rtl8169_private *tp, int val)
2002{
2003        struct phy_device *phydev = tp->phydev;
2004        int ret = 0;
2005
2006        switch (tp->mac_version) {
2007        case RTL_GIGA_MAC_VER_34:
2008        case RTL_GIGA_MAC_VER_35:
2009        case RTL_GIGA_MAC_VER_36:
2010        case RTL_GIGA_MAC_VER_38:
2011                ret = phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
2012                break;
2013        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
2014                phy_write_paged(phydev, 0x0a5d, 0x10, val);
2015                break;
2016        default:
2017                ret = -EPROTONOSUPPORT;
2018                break;
2019        }
2020
2021        return ret;
2022}
2023
2024static int rtl8169_get_eee(struct net_device *dev, struct ethtool_eee *data)
2025{
2026        struct rtl8169_private *tp = netdev_priv(dev);
2027        struct device *d = tp_to_dev(tp);
2028        int ret;
2029
2030        pm_runtime_get_noresume(d);
2031
2032        if (!pm_runtime_active(d)) {
2033                ret = -EOPNOTSUPP;
2034                goto out;
2035        }
2036
2037        /* Get Supported EEE */
2038        ret = rtl_get_eee_supp(tp);
2039        if (ret < 0)
2040                goto out;
2041        data->supported = mmd_eee_cap_to_ethtool_sup_t(ret);
2042
2043        /* Get advertisement EEE */
2044        ret = rtl_get_eee_adv(tp);
2045        if (ret < 0)
2046                goto out;
2047        data->advertised = mmd_eee_adv_to_ethtool_adv_t(ret);
2048        data->eee_enabled = !!data->advertised;
2049
2050        /* Get LP advertisement EEE */
2051        ret = rtl_get_eee_lpadv(tp);
2052        if (ret < 0)
2053                goto out;
2054        data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(ret);
2055        data->eee_active = !!(data->advertised & data->lp_advertised);
2056out:
2057        pm_runtime_put_noidle(d);
2058        return ret < 0 ? ret : 0;
2059}
2060
2061static int rtl8169_set_eee(struct net_device *dev, struct ethtool_eee *data)
2062{
2063        struct rtl8169_private *tp = netdev_priv(dev);
2064        struct device *d = tp_to_dev(tp);
2065        int old_adv, adv = 0, cap, ret;
2066
2067        pm_runtime_get_noresume(d);
2068
2069        if (!dev->phydev || !pm_runtime_active(d)) {
2070                ret = -EOPNOTSUPP;
2071                goto out;
2072        }
2073
2074        if (dev->phydev->autoneg == AUTONEG_DISABLE ||
2075            dev->phydev->duplex != DUPLEX_FULL) {
2076                ret = -EPROTONOSUPPORT;
2077                goto out;
2078        }
2079
2080        /* Get Supported EEE */
2081        ret = rtl_get_eee_supp(tp);
2082        if (ret < 0)
2083                goto out;
2084        cap = ret;
2085
2086        ret = rtl_get_eee_adv(tp);
2087        if (ret < 0)
2088                goto out;
2089        old_adv = ret;
2090
2091        if (data->eee_enabled) {
2092                adv = !data->advertised ? cap :
2093                      ethtool_adv_to_mmd_eee_adv_t(data->advertised) & cap;
2094                /* Mask prohibited EEE modes */
2095                adv &= ~dev->phydev->eee_broken_modes;
2096        }
2097
2098        if (old_adv != adv) {
2099                ret = rtl_set_eee_adv(tp, adv);
2100                if (ret < 0)
2101                        goto out;
2102
2103                /* Restart autonegotiation so the new modes get sent to the
2104                 * link partner.
2105                 */
2106                ret = phy_restart_aneg(dev->phydev);
2107        }
2108
2109out:
2110        pm_runtime_put_noidle(d);
2111        return ret < 0 ? ret : 0;
2112}
2113
2114static const struct ethtool_ops rtl8169_ethtool_ops = {
2115        .get_drvinfo            = rtl8169_get_drvinfo,
2116        .get_regs_len           = rtl8169_get_regs_len,
2117        .get_link               = ethtool_op_get_link,
2118        .get_coalesce           = rtl_get_coalesce,
2119        .set_coalesce           = rtl_set_coalesce,
2120        .get_msglevel           = rtl8169_get_msglevel,
2121        .set_msglevel           = rtl8169_set_msglevel,
2122        .get_regs               = rtl8169_get_regs,
2123        .get_wol                = rtl8169_get_wol,
2124        .set_wol                = rtl8169_set_wol,
2125        .get_strings            = rtl8169_get_strings,
2126        .get_sset_count         = rtl8169_get_sset_count,
2127        .get_ethtool_stats      = rtl8169_get_ethtool_stats,
2128        .get_ts_info            = ethtool_op_get_ts_info,
2129        .nway_reset             = phy_ethtool_nway_reset,
2130        .get_eee                = rtl8169_get_eee,
2131        .set_eee                = rtl8169_set_eee,
2132        .get_link_ksettings     = phy_ethtool_get_link_ksettings,
2133        .set_link_ksettings     = phy_ethtool_set_link_ksettings,
2134};
2135
2136static void rtl_enable_eee(struct rtl8169_private *tp)
2137{
2138        int supported = rtl_get_eee_supp(tp);
2139
2140        if (supported > 0)
2141                rtl_set_eee_adv(tp, supported);
2142}
2143
2144static void rtl8169_get_mac_version(struct rtl8169_private *tp)
2145{
2146        /*
2147         * The driver currently handles the 8168Bf and the 8168Be identically
2148         * but they can be identified more specifically through the test below
2149         * if needed:
2150         *
2151         * (RTL_R32(tp, TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
2152         *
2153         * Same thing for the 8101Eb and the 8101Ec:
2154         *
2155         * (RTL_R32(tp, TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
2156         */
2157        static const struct rtl_mac_info {
2158                u16 mask;
2159                u16 val;
2160                u16 mac_version;
2161        } mac_info[] = {
2162                /* 8168EP family. */
2163                { 0x7cf, 0x502, RTL_GIGA_MAC_VER_51 },
2164                { 0x7cf, 0x501, RTL_GIGA_MAC_VER_50 },
2165                { 0x7cf, 0x500, RTL_GIGA_MAC_VER_49 },
2166
2167                /* 8168H family. */
2168                { 0x7cf, 0x541, RTL_GIGA_MAC_VER_46 },
2169                { 0x7cf, 0x540, RTL_GIGA_MAC_VER_45 },
2170
2171                /* 8168G family. */
2172                { 0x7cf, 0x5c8, RTL_GIGA_MAC_VER_44 },
2173                { 0x7cf, 0x509, RTL_GIGA_MAC_VER_42 },
2174                { 0x7cf, 0x4c1, RTL_GIGA_MAC_VER_41 },
2175                { 0x7cf, 0x4c0, RTL_GIGA_MAC_VER_40 },
2176
2177                /* 8168F family. */
2178                { 0x7c8, 0x488, RTL_GIGA_MAC_VER_38 },
2179                { 0x7cf, 0x481, RTL_GIGA_MAC_VER_36 },
2180                { 0x7cf, 0x480, RTL_GIGA_MAC_VER_35 },
2181
2182                /* 8168E family. */
2183                { 0x7c8, 0x2c8, RTL_GIGA_MAC_VER_34 },
2184                { 0x7cf, 0x2c1, RTL_GIGA_MAC_VER_32 },
2185                { 0x7c8, 0x2c0, RTL_GIGA_MAC_VER_33 },
2186
2187                /* 8168D family. */
2188                { 0x7cf, 0x281, RTL_GIGA_MAC_VER_25 },
2189                { 0x7c8, 0x280, RTL_GIGA_MAC_VER_26 },
2190
2191                /* 8168DP family. */
2192                { 0x7cf, 0x288, RTL_GIGA_MAC_VER_27 },
2193                { 0x7cf, 0x28a, RTL_GIGA_MAC_VER_28 },
2194                { 0x7cf, 0x28b, RTL_GIGA_MAC_VER_31 },
2195
2196                /* 8168C family. */
2197                { 0x7cf, 0x3c9, RTL_GIGA_MAC_VER_23 },
2198                { 0x7cf, 0x3c8, RTL_GIGA_MAC_VER_18 },
2199                { 0x7c8, 0x3c8, RTL_GIGA_MAC_VER_24 },
2200                { 0x7cf, 0x3c0, RTL_GIGA_MAC_VER_19 },
2201                { 0x7cf, 0x3c2, RTL_GIGA_MAC_VER_20 },
2202                { 0x7cf, 0x3c3, RTL_GIGA_MAC_VER_21 },
2203                { 0x7c8, 0x3c0, RTL_GIGA_MAC_VER_22 },
2204
2205                /* 8168B family. */
2206                { 0x7cf, 0x380, RTL_GIGA_MAC_VER_12 },
2207                { 0x7c8, 0x380, RTL_GIGA_MAC_VER_17 },
2208                { 0x7c8, 0x300, RTL_GIGA_MAC_VER_11 },
2209
2210                /* 8101 family. */
2211                { 0x7c8, 0x448, RTL_GIGA_MAC_VER_39 },
2212                { 0x7c8, 0x440, RTL_GIGA_MAC_VER_37 },
2213                { 0x7cf, 0x409, RTL_GIGA_MAC_VER_29 },
2214                { 0x7c8, 0x408, RTL_GIGA_MAC_VER_30 },
2215                { 0x7cf, 0x349, RTL_GIGA_MAC_VER_08 },
2216                { 0x7cf, 0x249, RTL_GIGA_MAC_VER_08 },
2217                { 0x7cf, 0x348, RTL_GIGA_MAC_VER_07 },
2218                { 0x7cf, 0x248, RTL_GIGA_MAC_VER_07 },
2219                { 0x7cf, 0x340, RTL_GIGA_MAC_VER_13 },
2220                { 0x7cf, 0x343, RTL_GIGA_MAC_VER_10 },
2221                { 0x7cf, 0x342, RTL_GIGA_MAC_VER_16 },
2222                { 0x7c8, 0x348, RTL_GIGA_MAC_VER_09 },
2223                { 0x7c8, 0x248, RTL_GIGA_MAC_VER_09 },
2224                { 0x7c8, 0x340, RTL_GIGA_MAC_VER_16 },
2225                /* FIXME: where did these entries come from ? -- FR */
2226                { 0xfc8, 0x388, RTL_GIGA_MAC_VER_15 },
2227                { 0xfc8, 0x308, RTL_GIGA_MAC_VER_14 },
2228
2229                /* 8110 family. */
2230                { 0xfc8, 0x980, RTL_GIGA_MAC_VER_06 },
2231                { 0xfc8, 0x180, RTL_GIGA_MAC_VER_05 },
2232                { 0xfc8, 0x100, RTL_GIGA_MAC_VER_04 },
2233                { 0xfc8, 0x040, RTL_GIGA_MAC_VER_03 },
2234                { 0xfc8, 0x008, RTL_GIGA_MAC_VER_02 },
2235
2236                /* Catch-all */
2237                { 0x000, 0x000, RTL_GIGA_MAC_NONE   }
2238        };
2239        const struct rtl_mac_info *p = mac_info;
2240        u16 reg = RTL_R32(tp, TxConfig) >> 20;
2241
2242        while ((reg & p->mask) != p->val)
2243                p++;
2244        tp->mac_version = p->mac_version;
2245
2246        if (tp->mac_version == RTL_GIGA_MAC_NONE) {
2247                dev_err(tp_to_dev(tp), "unknown chip XID %03x\n", reg & 0xfcf);
2248        } else if (!tp->supports_gmii) {
2249                if (tp->mac_version == RTL_GIGA_MAC_VER_42)
2250                        tp->mac_version = RTL_GIGA_MAC_VER_43;
2251                else if (tp->mac_version == RTL_GIGA_MAC_VER_45)
2252                        tp->mac_version = RTL_GIGA_MAC_VER_47;
2253                else if (tp->mac_version == RTL_GIGA_MAC_VER_46)
2254                        tp->mac_version = RTL_GIGA_MAC_VER_48;
2255        }
2256}
2257
2258struct phy_reg {
2259        u16 reg;
2260        u16 val;
2261};
2262
2263static void __rtl_writephy_batch(struct rtl8169_private *tp,
2264                                 const struct phy_reg *regs, int len)
2265{
2266        while (len-- > 0) {
2267                rtl_writephy(tp, regs->reg, regs->val);
2268                regs++;
2269        }
2270}
2271
2272#define rtl_writephy_batch(tp, a) __rtl_writephy_batch(tp, a, ARRAY_SIZE(a))
2273
2274static void rtl_release_firmware(struct rtl8169_private *tp)
2275{
2276        if (tp->rtl_fw) {
2277                rtl_fw_release_firmware(tp->rtl_fw);
2278                kfree(tp->rtl_fw);
2279                tp->rtl_fw = NULL;
2280        }
2281}
2282
2283static void rtl_apply_firmware(struct rtl8169_private *tp)
2284{
2285        /* TODO: release firmware if rtl_fw_write_firmware signals failure. */
2286        if (tp->rtl_fw)
2287                rtl_fw_write_firmware(tp, tp->rtl_fw);
2288}
2289
2290static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val)
2291{
2292        if (rtl_readphy(tp, reg) != val)
2293                netif_warn(tp, hw, tp->dev, "chipset not ready for firmware\n");
2294        else
2295                rtl_apply_firmware(tp);
2296}
2297
2298static void rtl8168_config_eee_mac(struct rtl8169_private *tp)
2299{
2300        /* Adjust EEE LED frequency */
2301        if (tp->mac_version != RTL_GIGA_MAC_VER_38)
2302                RTL_W8(tp, EEE_LED, RTL_R8(tp, EEE_LED) & ~0x07);
2303
2304        rtl_eri_set_bits(tp, 0x1b0, ERIAR_MASK_1111, 0x0003);
2305}
2306
2307static void rtl8168f_config_eee_phy(struct rtl8169_private *tp)
2308{
2309        struct phy_device *phydev = tp->phydev;
2310
2311        phy_write(phydev, 0x1f, 0x0007);
2312        phy_write(phydev, 0x1e, 0x0020);
2313        phy_set_bits(phydev, 0x15, BIT(8));
2314
2315        phy_write(phydev, 0x1f, 0x0005);
2316        phy_write(phydev, 0x05, 0x8b85);
2317        phy_set_bits(phydev, 0x06, BIT(13));
2318
2319        phy_write(phydev, 0x1f, 0x0000);
2320}
2321
2322static void rtl8168g_config_eee_phy(struct rtl8169_private *tp)
2323{
2324        phy_modify_paged(tp->phydev, 0x0a43, 0x11, 0, BIT(4));
2325}
2326
2327static void rtl8169s_hw_phy_config(struct rtl8169_private *tp)
2328{
2329        static const struct phy_reg phy_reg_init[] = {
2330                { 0x1f, 0x0001 },
2331                { 0x06, 0x006e },
2332                { 0x08, 0x0708 },
2333                { 0x15, 0x4000 },
2334                { 0x18, 0x65c7 },
2335
2336                { 0x1f, 0x0001 },
2337                { 0x03, 0x00a1 },
2338                { 0x02, 0x0008 },
2339                { 0x01, 0x0120 },
2340                { 0x00, 0x1000 },
2341                { 0x04, 0x0800 },
2342                { 0x04, 0x0000 },
2343
2344                { 0x03, 0xff41 },
2345                { 0x02, 0xdf60 },
2346                { 0x01, 0x0140 },
2347                { 0x00, 0x0077 },
2348                { 0x04, 0x7800 },
2349                { 0x04, 0x7000 },
2350
2351                { 0x03, 0x802f },
2352                { 0x02, 0x4f02 },
2353                { 0x01, 0x0409 },
2354                { 0x00, 0xf0f9 },
2355                { 0x04, 0x9800 },
2356                { 0x04, 0x9000 },
2357
2358                { 0x03, 0xdf01 },
2359                { 0x02, 0xdf20 },
2360                { 0x01, 0xff95 },
2361                { 0x00, 0xba00 },
2362                { 0x04, 0xa800 },
2363                { 0x04, 0xa000 },
2364
2365                { 0x03, 0xff41 },
2366                { 0x02, 0xdf20 },
2367                { 0x01, 0x0140 },
2368                { 0x00, 0x00bb },
2369                { 0x04, 0xb800 },
2370                { 0x04, 0xb000 },
2371
2372                { 0x03, 0xdf41 },
2373                { 0x02, 0xdc60 },
2374                { 0x01, 0x6340 },
2375                { 0x00, 0x007d },
2376                { 0x04, 0xd800 },
2377                { 0x04, 0xd000 },
2378
2379                { 0x03, 0xdf01 },
2380                { 0x02, 0xdf20 },
2381                { 0x01, 0x100a },
2382                { 0x00, 0xa0ff },
2383                { 0x04, 0xf800 },
2384                { 0x04, 0xf000 },
2385
2386                { 0x1f, 0x0000 },
2387                { 0x0b, 0x0000 },
2388                { 0x00, 0x9200 }
2389        };
2390
2391        rtl_writephy_batch(tp, phy_reg_init);
2392}
2393
2394static void rtl8169sb_hw_phy_config(struct rtl8169_private *tp)
2395{
2396        static const struct phy_reg phy_reg_init[] = {
2397                { 0x1f, 0x0002 },
2398                { 0x01, 0x90d0 },
2399                { 0x1f, 0x0000 }
2400        };
2401
2402        rtl_writephy_batch(tp, phy_reg_init);
2403}
2404
2405static void rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp)
2406{
2407        struct pci_dev *pdev = tp->pci_dev;
2408
2409        if ((pdev->subsystem_vendor != PCI_VENDOR_ID_GIGABYTE) ||
2410            (pdev->subsystem_device != 0xe000))
2411                return;
2412
2413        rtl_writephy(tp, 0x1f, 0x0001);
2414        rtl_writephy(tp, 0x10, 0xf01b);
2415        rtl_writephy(tp, 0x1f, 0x0000);
2416}
2417
2418static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp)
2419{
2420        static const struct phy_reg phy_reg_init[] = {
2421                { 0x1f, 0x0001 },
2422                { 0x04, 0x0000 },
2423                { 0x03, 0x00a1 },
2424                { 0x02, 0x0008 },
2425                { 0x01, 0x0120 },
2426                { 0x00, 0x1000 },
2427                { 0x04, 0x0800 },
2428                { 0x04, 0x9000 },
2429                { 0x03, 0x802f },
2430                { 0x02, 0x4f02 },
2431                { 0x01, 0x0409 },
2432                { 0x00, 0xf099 },
2433                { 0x04, 0x9800 },
2434                { 0x04, 0xa000 },
2435                { 0x03, 0xdf01 },
2436                { 0x02, 0xdf20 },
2437                { 0x01, 0xff95 },
2438                { 0x00, 0xba00 },
2439                { 0x04, 0xa800 },
2440                { 0x04, 0xf000 },
2441                { 0x03, 0xdf01 },
2442                { 0x02, 0xdf20 },
2443                { 0x01, 0x101a },
2444                { 0x00, 0xa0ff },
2445                { 0x04, 0xf800 },
2446                { 0x04, 0x0000 },
2447                { 0x1f, 0x0000 },
2448
2449                { 0x1f, 0x0001 },
2450                { 0x10, 0xf41b },
2451                { 0x14, 0xfb54 },
2452                { 0x18, 0xf5c7 },
2453                { 0x1f, 0x0000 },
2454
2455                { 0x1f, 0x0001 },
2456                { 0x17, 0x0cc0 },
2457                { 0x1f, 0x0000 }
2458        };
2459
2460        rtl_writephy_batch(tp, phy_reg_init);
2461
2462        rtl8169scd_hw_phy_config_quirk(tp);
2463}
2464
2465static void rtl8169sce_hw_phy_config(struct rtl8169_private *tp)
2466{
2467        static const struct phy_reg phy_reg_init[] = {
2468                { 0x1f, 0x0001 },
2469                { 0x04, 0x0000 },
2470                { 0x03, 0x00a1 },
2471                { 0x02, 0x0008 },
2472                { 0x01, 0x0120 },
2473                { 0x00, 0x1000 },
2474                { 0x04, 0x0800 },
2475                { 0x04, 0x9000 },
2476                { 0x03, 0x802f },
2477                { 0x02, 0x4f02 },
2478                { 0x01, 0x0409 },
2479                { 0x00, 0xf099 },
2480                { 0x04, 0x9800 },
2481                { 0x04, 0xa000 },
2482                { 0x03, 0xdf01 },
2483                { 0x02, 0xdf20 },
2484                { 0x01, 0xff95 },
2485                { 0x00, 0xba00 },
2486                { 0x04, 0xa800 },
2487                { 0x04, 0xf000 },
2488                { 0x03, 0xdf01 },
2489                { 0x02, 0xdf20 },
2490                { 0x01, 0x101a },
2491                { 0x00, 0xa0ff },
2492                { 0x04, 0xf800 },
2493                { 0x04, 0x0000 },
2494                { 0x1f, 0x0000 },
2495
2496                { 0x1f, 0x0001 },
2497                { 0x0b, 0x8480 },
2498                { 0x1f, 0x0000 },
2499
2500                { 0x1f, 0x0001 },
2501                { 0x18, 0x67c7 },
2502                { 0x04, 0x2000 },
2503                { 0x03, 0x002f },
2504                { 0x02, 0x4360 },
2505                { 0x01, 0x0109 },
2506                { 0x00, 0x3022 },
2507                { 0x04, 0x2800 },
2508                { 0x1f, 0x0000 },
2509
2510                { 0x1f, 0x0001 },
2511                { 0x17, 0x0cc0 },
2512                { 0x1f, 0x0000 }
2513        };
2514
2515        rtl_writephy_batch(tp, phy_reg_init);
2516}
2517
2518static void rtl8168bb_hw_phy_config(struct rtl8169_private *tp)
2519{
2520        static const struct phy_reg phy_reg_init[] = {
2521                { 0x10, 0xf41b },
2522                { 0x1f, 0x0000 }
2523        };
2524
2525        rtl_writephy(tp, 0x1f, 0x0001);
2526        rtl_patchphy(tp, 0x16, 1 << 0);
2527
2528        rtl_writephy_batch(tp, phy_reg_init);
2529}
2530
2531static void rtl8168bef_hw_phy_config(struct rtl8169_private *tp)
2532{
2533        static const struct phy_reg phy_reg_init[] = {
2534                { 0x1f, 0x0001 },
2535                { 0x10, 0xf41b },
2536                { 0x1f, 0x0000 }
2537        };
2538
2539        rtl_writephy_batch(tp, phy_reg_init);
2540}
2541
2542static void rtl8168cp_1_hw_phy_config(struct rtl8169_private *tp)
2543{
2544        static const struct phy_reg phy_reg_init[] = {
2545                { 0x1f, 0x0000 },
2546                { 0x1d, 0x0f00 },
2547                { 0x1f, 0x0002 },
2548                { 0x0c, 0x1ec8 },
2549                { 0x1f, 0x0000 }
2550        };
2551
2552        rtl_writephy_batch(tp, phy_reg_init);
2553}
2554
2555static void rtl8168cp_2_hw_phy_config(struct rtl8169_private *tp)
2556{
2557        static const struct phy_reg phy_reg_init[] = {
2558                { 0x1f, 0x0001 },
2559                { 0x1d, 0x3d98 },
2560                { 0x1f, 0x0000 }
2561        };
2562
2563        rtl_writephy(tp, 0x1f, 0x0000);
2564        rtl_patchphy(tp, 0x14, 1 << 5);
2565        rtl_patchphy(tp, 0x0d, 1 << 5);
2566
2567        rtl_writephy_batch(tp, phy_reg_init);
2568}
2569
2570static void rtl8168c_1_hw_phy_config(struct rtl8169_private *tp)
2571{
2572        static const struct phy_reg phy_reg_init[] = {
2573                { 0x1f, 0x0001 },
2574                { 0x12, 0x2300 },
2575                { 0x1f, 0x0002 },
2576                { 0x00, 0x88d4 },
2577                { 0x01, 0x82b1 },
2578                { 0x03, 0x7002 },
2579                { 0x08, 0x9e30 },
2580                { 0x09, 0x01f0 },
2581                { 0x0a, 0x5500 },
2582                { 0x0c, 0x00c8 },
2583                { 0x1f, 0x0003 },
2584                { 0x12, 0xc096 },
2585                { 0x16, 0x000a },
2586                { 0x1f, 0x0000 },
2587                { 0x1f, 0x0000 },
2588                { 0x09, 0x2000 },
2589                { 0x09, 0x0000 }
2590        };
2591
2592        rtl_writephy_batch(tp, phy_reg_init);
2593
2594        rtl_patchphy(tp, 0x14, 1 << 5);
2595        rtl_patchphy(tp, 0x0d, 1 << 5);
2596        rtl_writephy(tp, 0x1f, 0x0000);
2597}
2598
2599static void rtl8168c_2_hw_phy_config(struct rtl8169_private *tp)
2600{
2601        static const struct phy_reg phy_reg_init[] = {
2602                { 0x1f, 0x0001 },
2603                { 0x12, 0x2300 },
2604                { 0x03, 0x802f },
2605                { 0x02, 0x4f02 },
2606                { 0x01, 0x0409 },
2607                { 0x00, 0xf099 },
2608                { 0x04, 0x9800 },
2609                { 0x04, 0x9000 },
2610                { 0x1d, 0x3d98 },
2611                { 0x1f, 0x0002 },
2612                { 0x0c, 0x7eb8 },
2613                { 0x06, 0x0761 },
2614                { 0x1f, 0x0003 },
2615                { 0x16, 0x0f0a },
2616                { 0x1f, 0x0000 }
2617        };
2618
2619        rtl_writephy_batch(tp, phy_reg_init);
2620
2621        rtl_patchphy(tp, 0x16, 1 << 0);
2622        rtl_patchphy(tp, 0x14, 1 << 5);
2623        rtl_patchphy(tp, 0x0d, 1 << 5);
2624        rtl_writephy(tp, 0x1f, 0x0000);
2625}
2626
2627static void rtl8168c_3_hw_phy_config(struct rtl8169_private *tp)
2628{
2629        static const struct phy_reg phy_reg_init[] = {
2630                { 0x1f, 0x0001 },
2631                { 0x12, 0x2300 },
2632                { 0x1d, 0x3d98 },
2633                { 0x1f, 0x0002 },
2634                { 0x0c, 0x7eb8 },
2635                { 0x06, 0x5461 },
2636                { 0x1f, 0x0003 },
2637                { 0x16, 0x0f0a },
2638                { 0x1f, 0x0000 }
2639        };
2640
2641        rtl_writephy_batch(tp, phy_reg_init);
2642
2643        rtl_patchphy(tp, 0x16, 1 << 0);
2644        rtl_patchphy(tp, 0x14, 1 << 5);
2645        rtl_patchphy(tp, 0x0d, 1 << 5);
2646        rtl_writephy(tp, 0x1f, 0x0000);
2647}
2648
2649static void rtl8168c_4_hw_phy_config(struct rtl8169_private *tp)
2650{
2651        rtl8168c_3_hw_phy_config(tp);
2652}
2653
2654static const struct phy_reg rtl8168d_1_phy_reg_init_0[] = {
2655        /* Channel Estimation */
2656        { 0x1f, 0x0001 },
2657        { 0x06, 0x4064 },
2658        { 0x07, 0x2863 },
2659        { 0x08, 0x059c },
2660        { 0x09, 0x26b4 },
2661        { 0x0a, 0x6a19 },
2662        { 0x0b, 0xdcc8 },
2663        { 0x10, 0xf06d },
2664        { 0x14, 0x7f68 },
2665        { 0x18, 0x7fd9 },
2666        { 0x1c, 0xf0ff },
2667        { 0x1d, 0x3d9c },
2668        { 0x1f, 0x0003 },
2669        { 0x12, 0xf49f },
2670        { 0x13, 0x070b },
2671        { 0x1a, 0x05ad },
2672        { 0x14, 0x94c0 },
2673
2674        /*
2675         * Tx Error Issue
2676         * Enhance line driver power
2677         */
2678        { 0x1f, 0x0002 },
2679        { 0x06, 0x5561 },
2680        { 0x1f, 0x0005 },
2681        { 0x05, 0x8332 },
2682        { 0x06, 0x5561 },
2683
2684        /*
2685         * Can not link to 1Gbps with bad cable
2686         * Decrease SNR threshold form 21.07dB to 19.04dB
2687         */
2688        { 0x1f, 0x0001 },
2689        { 0x17, 0x0cc0 },
2690
2691        { 0x1f, 0x0000 },
2692        { 0x0d, 0xf880 }
2693};
2694
2695static const struct phy_reg rtl8168d_1_phy_reg_init_1[] = {
2696        { 0x1f, 0x0002 },
2697        { 0x05, 0x669a },
2698        { 0x1f, 0x0005 },
2699        { 0x05, 0x8330 },
2700        { 0x06, 0x669a },
2701        { 0x1f, 0x0002 }
2702};
2703
2704static void rtl8168d_1_hw_phy_config(struct rtl8169_private *tp)
2705{
2706        rtl_writephy_batch(tp, rtl8168d_1_phy_reg_init_0);
2707
2708        /*
2709         * Rx Error Issue
2710         * Fine Tune Switching regulator parameter
2711         */
2712        rtl_writephy(tp, 0x1f, 0x0002);
2713        rtl_w0w1_phy(tp, 0x0b, 0x0010, 0x00ef);
2714        rtl_w0w1_phy(tp, 0x0c, 0xa200, 0x5d00);
2715
2716        if (rtl8168d_efuse_read(tp, 0x01) == 0xb1) {
2717                int val;
2718
2719                rtl_writephy_batch(tp, rtl8168d_1_phy_reg_init_1);
2720
2721                val = rtl_readphy(tp, 0x0d);
2722
2723                if ((val & 0x00ff) != 0x006c) {
2724                        static const u32 set[] = {
2725                                0x0065, 0x0066, 0x0067, 0x0068,
2726                                0x0069, 0x006a, 0x006b, 0x006c
2727                        };
2728                        int i;
2729
2730                        rtl_writephy(tp, 0x1f, 0x0002);
2731
2732                        val &= 0xff00;
2733                        for (i = 0; i < ARRAY_SIZE(set); i++)
2734                                rtl_writephy(tp, 0x0d, val | set[i]);
2735                }
2736        } else {
2737                static const struct phy_reg phy_reg_init[] = {
2738                        { 0x1f, 0x0002 },
2739                        { 0x05, 0x6662 },
2740                        { 0x1f, 0x0005 },
2741                        { 0x05, 0x8330 },
2742                        { 0x06, 0x6662 }
2743                };
2744
2745                rtl_writephy_batch(tp, phy_reg_init);
2746        }
2747
2748        /* RSET couple improve */
2749        rtl_writephy(tp, 0x1f, 0x0002);
2750        rtl_patchphy(tp, 0x0d, 0x0300);
2751        rtl_patchphy(tp, 0x0f, 0x0010);
2752
2753        /* Fine tune PLL performance */
2754        rtl_writephy(tp, 0x1f, 0x0002);
2755        rtl_w0w1_phy(tp, 0x02, 0x0100, 0x0600);
2756        rtl_w0w1_phy(tp, 0x03, 0x0000, 0xe000);
2757
2758        rtl_writephy(tp, 0x1f, 0x0005);
2759        rtl_writephy(tp, 0x05, 0x001b);
2760
2761        rtl_apply_firmware_cond(tp, MII_EXPANSION, 0xbf00);
2762
2763        rtl_writephy(tp, 0x1f, 0x0000);
2764}
2765
2766static void rtl8168d_2_hw_phy_config(struct rtl8169_private *tp)
2767{
2768        rtl_writephy_batch(tp, rtl8168d_1_phy_reg_init_0);
2769
2770        if (rtl8168d_efuse_read(tp, 0x01) == 0xb1) {
2771                int val;
2772
2773                rtl_writephy_batch(tp, rtl8168d_1_phy_reg_init_1);
2774
2775                val = rtl_readphy(tp, 0x0d);
2776                if ((val & 0x00ff) != 0x006c) {
2777                        static const u32 set[] = {
2778                                0x0065, 0x0066, 0x0067, 0x0068,
2779                                0x0069, 0x006a, 0x006b, 0x006c
2780                        };
2781                        int i;
2782
2783                        rtl_writephy(tp, 0x1f, 0x0002);
2784
2785                        val &= 0xff00;
2786                        for (i = 0; i < ARRAY_SIZE(set); i++)
2787                                rtl_writephy(tp, 0x0d, val | set[i]);
2788                }
2789        } else {
2790                static const struct phy_reg phy_reg_init[] = {
2791                        { 0x1f, 0x0002 },
2792                        { 0x05, 0x2642 },
2793                        { 0x1f, 0x0005 },
2794                        { 0x05, 0x8330 },
2795                        { 0x06, 0x2642 }
2796                };
2797
2798                rtl_writephy_batch(tp, phy_reg_init);
2799        }
2800
2801        /* Fine tune PLL performance */
2802        rtl_writephy(tp, 0x1f, 0x0002);
2803        rtl_w0w1_phy(tp, 0x02, 0x0100, 0x0600);
2804        rtl_w0w1_phy(tp, 0x03, 0x0000, 0xe000);
2805
2806        /* Switching regulator Slew rate */
2807        rtl_writephy(tp, 0x1f, 0x0002);
2808        rtl_patchphy(tp, 0x0f, 0x0017);
2809
2810        rtl_writephy(tp, 0x1f, 0x0005);
2811        rtl_writephy(tp, 0x05, 0x001b);
2812
2813        rtl_apply_firmware_cond(tp, MII_EXPANSION, 0xb300);
2814
2815        rtl_writephy(tp, 0x1f, 0x0000);
2816}
2817
2818static void rtl8168d_3_hw_phy_config(struct rtl8169_private *tp)
2819{
2820        static const struct phy_reg phy_reg_init[] = {
2821                { 0x1f, 0x0002 },
2822                { 0x10, 0x0008 },
2823                { 0x0d, 0x006c },
2824
2825                { 0x1f, 0x0000 },
2826                { 0x0d, 0xf880 },
2827
2828                { 0x1f, 0x0001 },
2829                { 0x17, 0x0cc0 },
2830
2831                { 0x1f, 0x0001 },
2832                { 0x0b, 0xa4d8 },
2833                { 0x09, 0x281c },
2834                { 0x07, 0x2883 },
2835                { 0x0a, 0x6b35 },
2836                { 0x1d, 0x3da4 },
2837                { 0x1c, 0xeffd },
2838                { 0x14, 0x7f52 },
2839                { 0x18, 0x7fc6 },
2840                { 0x08, 0x0601 },
2841                { 0x06, 0x4063 },
2842                { 0x10, 0xf074 },
2843                { 0x1f, 0x0003 },
2844                { 0x13, 0x0789 },
2845                { 0x12, 0xf4bd },
2846                { 0x1a, 0x04fd },
2847                { 0x14, 0x84b0 },
2848                { 0x1f, 0x0000 },
2849                { 0x00, 0x9200 },
2850
2851                { 0x1f, 0x0005 },
2852                { 0x01, 0x0340 },
2853                { 0x1f, 0x0001 },
2854                { 0x04, 0x4000 },
2855                { 0x03, 0x1d21 },
2856                { 0x02, 0x0c32 },
2857                { 0x01, 0x0200 },
2858                { 0x00, 0x5554 },
2859                { 0x04, 0x4800 },
2860                { 0x04, 0x4000 },
2861                { 0x04, 0xf000 },
2862                { 0x03, 0xdf01 },
2863                { 0x02, 0xdf20 },
2864                { 0x01, 0x101a },
2865                { 0x00, 0xa0ff },
2866                { 0x04, 0xf800 },
2867                { 0x04, 0xf000 },
2868                { 0x1f, 0x0000 },
2869
2870                { 0x1f, 0x0007 },
2871                { 0x1e, 0x0023 },
2872                { 0x16, 0x0000 },
2873                { 0x1f, 0x0000 }
2874        };
2875
2876        rtl_writephy_batch(tp, phy_reg_init);
2877}
2878
2879static void rtl8168d_4_hw_phy_config(struct rtl8169_private *tp)
2880{
2881        static const struct phy_reg phy_reg_init[] = {
2882                { 0x1f, 0x0001 },
2883                { 0x17, 0x0cc0 },
2884
2885                { 0x1f, 0x0007 },
2886                { 0x1e, 0x002d },
2887                { 0x18, 0x0040 },
2888                { 0x1f, 0x0000 }
2889        };
2890
2891        rtl_writephy_batch(tp, phy_reg_init);
2892        rtl_patchphy(tp, 0x0d, 1 << 5);
2893}
2894
2895static void rtl8168e_1_hw_phy_config(struct rtl8169_private *tp)
2896{
2897        static const struct phy_reg phy_reg_init[] = {
2898                /* Enable Delay cap */
2899                { 0x1f, 0x0005 },
2900                { 0x05, 0x8b80 },
2901                { 0x06, 0xc896 },
2902                { 0x1f, 0x0000 },
2903
2904                /* Channel estimation fine tune */
2905                { 0x1f, 0x0001 },
2906                { 0x0b, 0x6c20 },
2907                { 0x07, 0x2872 },
2908                { 0x1c, 0xefff },
2909                { 0x1f, 0x0003 },
2910                { 0x14, 0x6420 },
2911                { 0x1f, 0x0000 },
2912
2913                /* Update PFM & 10M TX idle timer */
2914                { 0x1f, 0x0007 },
2915                { 0x1e, 0x002f },
2916                { 0x15, 0x1919 },
2917                { 0x1f, 0x0000 },
2918
2919                { 0x1f, 0x0007 },
2920                { 0x1e, 0x00ac },
2921                { 0x18, 0x0006 },
2922                { 0x1f, 0x0000 }
2923        };
2924
2925        rtl_apply_firmware(tp);
2926
2927        rtl_writephy_batch(tp, phy_reg_init);
2928
2929        /* DCO enable for 10M IDLE Power */
2930        rtl_writephy(tp, 0x1f, 0x0007);
2931        rtl_writephy(tp, 0x1e, 0x0023);
2932        rtl_w0w1_phy(tp, 0x17, 0x0006, 0x0000);
2933        rtl_writephy(tp, 0x1f, 0x0000);
2934
2935        /* For impedance matching */
2936        rtl_writephy(tp, 0x1f, 0x0002);
2937        rtl_w0w1_phy(tp, 0x08, 0x8000, 0x7f00);
2938        rtl_writephy(tp, 0x1f, 0x0000);
2939
2940        /* PHY auto speed down */
2941        rtl_writephy(tp, 0x1f, 0x0007);
2942        rtl_writephy(tp, 0x1e, 0x002d);
2943        rtl_w0w1_phy(tp, 0x18, 0x0050, 0x0000);
2944        rtl_writephy(tp, 0x1f, 0x0000);
2945        rtl_w0w1_phy(tp, 0x14, 0x8000, 0x0000);
2946
2947        rtl_writephy(tp, 0x1f, 0x0005);
2948        rtl_writephy(tp, 0x05, 0x8b86);
2949        rtl_w0w1_phy(tp, 0x06, 0x0001, 0x0000);
2950        rtl_writephy(tp, 0x1f, 0x0000);
2951
2952        rtl_writephy(tp, 0x1f, 0x0005);
2953        rtl_writephy(tp, 0x05, 0x8b85);
2954        rtl_w0w1_phy(tp, 0x06, 0x0000, 0x2000);
2955        rtl_writephy(tp, 0x1f, 0x0007);
2956        rtl_writephy(tp, 0x1e, 0x0020);
2957        rtl_w0w1_phy(tp, 0x15, 0x0000, 0x1100);
2958        rtl_writephy(tp, 0x1f, 0x0006);
2959        rtl_writephy(tp, 0x00, 0x5a00);
2960        rtl_writephy(tp, 0x1f, 0x0000);
2961        rtl_writephy(tp, 0x0d, 0x0007);
2962        rtl_writephy(tp, 0x0e, 0x003c);
2963        rtl_writephy(tp, 0x0d, 0x4007);
2964        rtl_writephy(tp, 0x0e, 0x0000);
2965        rtl_writephy(tp, 0x0d, 0x0000);
2966}
2967
2968static void rtl_rar_exgmac_set(struct rtl8169_private *tp, u8 *addr)
2969{
2970        const u16 w[] = {
2971                addr[0] | (addr[1] << 8),
2972                addr[2] | (addr[3] << 8),
2973                addr[4] | (addr[5] << 8)
2974        };
2975
2976        rtl_eri_write(tp, 0xe0, ERIAR_MASK_1111, w[0] | (w[1] << 16));
2977        rtl_eri_write(tp, 0xe4, ERIAR_MASK_1111, w[2]);
2978        rtl_eri_write(tp, 0xf0, ERIAR_MASK_1111, w[0] << 16);
2979        rtl_eri_write(tp, 0xf4, ERIAR_MASK_1111, w[1] | (w[2] << 16));
2980}
2981
2982static void rtl8168e_2_hw_phy_config(struct rtl8169_private *tp)
2983{
2984        static const struct phy_reg phy_reg_init[] = {
2985                /* Enable Delay cap */
2986                { 0x1f, 0x0004 },
2987                { 0x1f, 0x0007 },
2988                { 0x1e, 0x00ac },
2989                { 0x18, 0x0006 },
2990                { 0x1f, 0x0002 },
2991                { 0x1f, 0x0000 },
2992                { 0x1f, 0x0000 },
2993
2994                /* Channel estimation fine tune */
2995                { 0x1f, 0x0003 },
2996                { 0x09, 0xa20f },
2997                { 0x1f, 0x0000 },
2998                { 0x1f, 0x0000 },
2999
3000                /* Green Setting */
3001                { 0x1f, 0x0005 },
3002                { 0x05, 0x8b5b },
3003                { 0x06, 0x9222 },
3004                { 0x05, 0x8b6d },
3005                { 0x06, 0x8000 },
3006                { 0x05, 0x8b76 },
3007                { 0x06, 0x8000 },
3008                { 0x1f, 0x0000 }
3009        };
3010
3011        rtl_apply_firmware(tp);
3012
3013        rtl_writephy_batch(tp, phy_reg_init);
3014
3015        /* For 4-corner performance improve */
3016        rtl_writephy(tp, 0x1f, 0x0005);
3017        rtl_writephy(tp, 0x05, 0x8b80);
3018        rtl_w0w1_phy(tp, 0x17, 0x0006, 0x0000);
3019        rtl_writephy(tp, 0x1f, 0x0000);
3020
3021        /* PHY auto speed down */
3022        rtl_writephy(tp, 0x1f, 0x0004);
3023        rtl_writephy(tp, 0x1f, 0x0007);
3024        rtl_writephy(tp, 0x1e, 0x002d);
3025        rtl_w0w1_phy(tp, 0x18, 0x0010, 0x0000);
3026        rtl_writephy(tp, 0x1f, 0x0002);
3027        rtl_writephy(tp, 0x1f, 0x0000);
3028        rtl_w0w1_phy(tp, 0x14, 0x8000, 0x0000);
3029
3030        /* improve 10M EEE waveform */
3031        rtl_writephy(tp, 0x1f, 0x0005);
3032        rtl_writephy(tp, 0x05, 0x8b86);
3033        rtl_w0w1_phy(tp, 0x06, 0x0001, 0x0000);
3034        rtl_writephy(tp, 0x1f, 0x0000);
3035
3036        /* Improve 2-pair detection performance */
3037        rtl_writephy(tp, 0x1f, 0x0005);
3038        rtl_writephy(tp, 0x05, 0x8b85);
3039        rtl_w0w1_phy(tp, 0x06, 0x4000, 0x0000);
3040        rtl_writephy(tp, 0x1f, 0x0000);
3041
3042        rtl8168f_config_eee_phy(tp);
3043        rtl_enable_eee(tp);
3044
3045        /* Green feature */
3046        rtl_writephy(tp, 0x1f, 0x0003);
3047        rtl_w0w1_phy(tp, 0x19, 0x0001, 0x0000);
3048        rtl_w0w1_phy(tp, 0x10, 0x0400, 0x0000);
3049        rtl_writephy(tp, 0x1f, 0x0000);
3050        rtl_writephy(tp, 0x1f, 0x0005);
3051        rtl_w0w1_phy(tp, 0x01, 0x0100, 0x0000);
3052        rtl_writephy(tp, 0x1f, 0x0000);
3053
3054        /* Broken BIOS workaround: feed GigaMAC registers with MAC address. */
3055        rtl_rar_exgmac_set(tp, tp->dev->dev_addr);
3056}
3057
3058static void rtl8168f_hw_phy_config(struct rtl8169_private *tp)
3059{
3060        /* For 4-corner performance improve */
3061        rtl_writephy(tp, 0x1f, 0x0005);
3062        rtl_writephy(tp, 0x05, 0x8b80);
3063        rtl_w0w1_phy(tp, 0x06, 0x0006, 0x0000);
3064        rtl_writephy(tp, 0x1f, 0x0000);
3065
3066        /* PHY auto speed down */
3067        rtl_writephy(tp, 0x1f, 0x0007);
3068        rtl_writephy(tp, 0x1e, 0x002d);
3069        rtl_w0w1_phy(tp, 0x18, 0x0010, 0x0000);
3070        rtl_writephy(tp, 0x1f, 0x0000);
3071        rtl_w0w1_phy(tp, 0x14, 0x8000, 0x0000);
3072
3073        /* Improve 10M EEE waveform */
3074        rtl_writephy(tp, 0x1f, 0x0005);
3075        rtl_writephy(tp, 0x05, 0x8b86);
3076        rtl_w0w1_phy(tp, 0x06, 0x0001, 0x0000);
3077        rtl_writephy(tp, 0x1f, 0x0000);
3078
3079        rtl8168f_config_eee_phy(tp);
3080        rtl_enable_eee(tp);
3081}
3082
3083static void rtl8168f_1_hw_phy_config(struct rtl8169_private *tp)
3084{
3085        static const struct phy_reg phy_reg_init[] = {
3086                /* Channel estimation fine tune */
3087                { 0x1f, 0x0003 },
3088                { 0x09, 0xa20f },
3089                { 0x1f, 0x0000 },
3090
3091                /* Modify green table for giga & fnet */
3092                { 0x1f, 0x0005 },
3093                { 0x05, 0x8b55 },
3094                { 0x06, 0x0000 },
3095                { 0x05, 0x8b5e },
3096                { 0x06, 0x0000 },
3097                { 0x05, 0x8b67 },
3098                { 0x06, 0x0000 },
3099                { 0x05, 0x8b70 },
3100                { 0x06, 0x0000 },
3101                { 0x1f, 0x0000 },
3102                { 0x1f, 0x0007 },
3103                { 0x1e, 0x0078 },
3104                { 0x17, 0x0000 },
3105                { 0x19, 0x00fb },
3106                { 0x1f, 0x0000 },
3107
3108                /* Modify green table for 10M */
3109                { 0x1f, 0x0005 },
3110                { 0x05, 0x8b79 },
3111                { 0x06, 0xaa00 },
3112                { 0x1f, 0x0000 },
3113
3114                /* Disable hiimpedance detection (RTCT) */
3115                { 0x1f, 0x0003 },
3116                { 0x01, 0x328a },
3117                { 0x1f, 0x0000 }
3118        };
3119
3120        rtl_apply_firmware(tp);
3121
3122        rtl_writephy_batch(tp, phy_reg_init);
3123
3124        rtl8168f_hw_phy_config(tp);
3125
3126        /* Improve 2-pair detection performance */
3127        rtl_writephy(tp, 0x1f, 0x0005);
3128        rtl_writephy(tp, 0x05, 0x8b85);
3129        rtl_w0w1_phy(tp, 0x06, 0x4000, 0x0000);
3130        rtl_writephy(tp, 0x1f, 0x0000);
3131}
3132
3133static void rtl8168f_2_hw_phy_config(struct rtl8169_private *tp)
3134{
3135        rtl_apply_firmware(tp);
3136
3137        rtl8168f_hw_phy_config(tp);
3138}
3139
3140static void rtl8411_hw_phy_config(struct rtl8169_private *tp)
3141{
3142        static const struct phy_reg phy_reg_init[] = {
3143                /* Channel estimation fine tune */
3144                { 0x1f, 0x0003 },
3145                { 0x09, 0xa20f },
3146                { 0x1f, 0x0000 },
3147
3148                /* Modify green table for giga & fnet */
3149                { 0x1f, 0x0005 },
3150                { 0x05, 0x8b55 },
3151                { 0x06, 0x0000 },
3152                { 0x05, 0x8b5e },
3153                { 0x06, 0x0000 },
3154                { 0x05, 0x8b67 },
3155                { 0x06, 0x0000 },
3156                { 0x05, 0x8b70 },
3157                { 0x06, 0x0000 },
3158                { 0x1f, 0x0000 },
3159                { 0x1f, 0x0007 },
3160                { 0x1e, 0x0078 },
3161                { 0x17, 0x0000 },
3162                { 0x19, 0x00aa },
3163                { 0x1f, 0x0000 },
3164
3165                /* Modify green table for 10M */
3166                { 0x1f, 0x0005 },
3167                { 0x05, 0x8b79 },
3168                { 0x06, 0xaa00 },
3169                { 0x1f, 0x0000 },
3170
3171                /* Disable hiimpedance detection (RTCT) */
3172                { 0x1f, 0x0003 },
3173                { 0x01, 0x328a },
3174                { 0x1f, 0x0000 }
3175        };
3176
3177
3178        rtl_apply_firmware(tp);
3179
3180        rtl8168f_hw_phy_config(tp);
3181
3182        /* Improve 2-pair detection performance */
3183        rtl_writephy(tp, 0x1f, 0x0005);
3184        rtl_writephy(tp, 0x05, 0x8b85);
3185        rtl_w0w1_phy(tp, 0x06, 0x4000, 0x0000);
3186        rtl_writephy(tp, 0x1f, 0x0000);
3187
3188        rtl_writephy_batch(tp, phy_reg_init);
3189
3190        /* Modify green table for giga */
3191        rtl_writephy(tp, 0x1f, 0x0005);
3192        rtl_writephy(tp, 0x05, 0x8b54);
3193        rtl_w0w1_phy(tp, 0x06, 0x0000, 0x0800);
3194        rtl_writephy(tp, 0x05, 0x8b5d);
3195        rtl_w0w1_phy(tp, 0x06, 0x0000, 0x0800);
3196        rtl_writephy(tp, 0x05, 0x8a7c);
3197        rtl_w0w1_phy(tp, 0x06, 0x0000, 0x0100);
3198        rtl_writephy(tp, 0x05, 0x8a7f);
3199        rtl_w0w1_phy(tp, 0x06, 0x0100, 0x0000);
3200        rtl_writephy(tp, 0x05, 0x8a82);
3201        rtl_w0w1_phy(tp, 0x06, 0x0000, 0x0100);
3202        rtl_writephy(tp, 0x05, 0x8a85);
3203        rtl_w0w1_phy(tp, 0x06, 0x0000, 0x0100);
3204        rtl_writephy(tp, 0x05, 0x8a88);
3205        rtl_w0w1_phy(tp, 0x06, 0x0000, 0x0100);
3206        rtl_writephy(tp, 0x1f, 0x0000);
3207
3208        /* uc same-seed solution */
3209        rtl_writephy(tp, 0x1f, 0x0005);
3210        rtl_writephy(tp, 0x05, 0x8b85);
3211        rtl_w0w1_phy(tp, 0x06, 0x8000, 0x0000);
3212        rtl_writephy(tp, 0x1f, 0x0000);
3213
3214        /* Green feature */
3215        rtl_writephy(tp, 0x1f, 0x0003);
3216        rtl_w0w1_phy(tp, 0x19, 0x0000, 0x0001);
3217        rtl_w0w1_phy(tp, 0x10, 0x0000, 0x0400);
3218        rtl_writephy(tp, 0x1f, 0x0000);
3219}
3220
3221static void rtl8168g_disable_aldps(struct rtl8169_private *tp)
3222{
3223        phy_modify_paged(tp->phydev, 0x0a43, 0x10, BIT(2), 0);
3224}
3225
3226static void rtl8168g_phy_adjust_10m_aldps(struct rtl8169_private *tp)
3227{
3228        struct phy_device *phydev = tp->phydev;
3229
3230        phy_modify_paged(phydev, 0x0bcc, 0x14, BIT(8), 0);
3231        phy_modify_paged(phydev, 0x0a44, 0x11, 0, BIT(7) | BIT(6));
3232        phy_write(phydev, 0x1f, 0x0a43);
3233        phy_write(phydev, 0x13, 0x8084);
3234        phy_clear_bits(phydev, 0x14, BIT(14) | BIT(13));
3235        phy_set_bits(phydev, 0x10, BIT(12) | BIT(1) | BIT(0));
3236
3237        phy_write(phydev, 0x1f, 0x0000);
3238}
3239
3240static void rtl8168g_1_hw_phy_config(struct rtl8169_private *tp)
3241{
3242        int ret;
3243
3244        rtl_apply_firmware(tp);
3245
3246        ret = phy_read_paged(tp->phydev, 0x0a46, 0x10);
3247        if (ret & BIT(8))
3248                phy_modify_paged(tp->phydev, 0x0bcc, 0x12, BIT(15), 0);
3249        else
3250                phy_modify_paged(tp->phydev, 0x0bcc, 0x12, 0, BIT(15));
3251
3252        ret = phy_read_paged(tp->phydev, 0x0a46, 0x13);
3253        if (ret & BIT(8))
3254                phy_modify_paged(tp->phydev, 0x0c41, 0x15, 0, BIT(1));
3255        else
3256                phy_modify_paged(tp->phydev, 0x0c41, 0x15, BIT(1), 0);
3257
3258        /* Enable PHY auto speed down */
3259        phy_modify_paged(tp->phydev, 0x0a44, 0x11, 0, BIT(3) | BIT(2));
3260
3261        rtl8168g_phy_adjust_10m_aldps(tp);
3262
3263        /* EEE auto-fallback function */
3264        phy_modify_paged(tp->phydev, 0x0a4b, 0x11, 0, BIT(2));
3265
3266        /* Enable UC LPF tune function */
3267        rtl_writephy(tp, 0x1f, 0x0a43);
3268        rtl_writephy(tp, 0x13, 0x8012);
3269        rtl_w0w1_phy(tp, 0x14, 0x8000, 0x0000);
3270
3271        phy_modify_paged(tp->phydev, 0x0c42, 0x11, BIT(13), BIT(14));
3272
3273        /* Improve SWR Efficiency */
3274        rtl_writephy(tp, 0x1f, 0x0bcd);
3275        rtl_writephy(tp, 0x14, 0x5065);
3276        rtl_writephy(tp, 0x14, 0xd065);
3277        rtl_writephy(tp, 0x1f, 0x0bc8);
3278        rtl_writephy(tp, 0x11, 0x5655);
3279        rtl_writephy(tp, 0x1f, 0x0bcd);
3280        rtl_writephy(tp, 0x14, 0x1065);
3281        rtl_writephy(tp, 0x14, 0x9065);
3282        rtl_writephy(tp, 0x14, 0x1065);
3283        rtl_writephy(tp, 0x1f, 0x0000);
3284
3285        rtl8168g_disable_aldps(tp);
3286        rtl8168g_config_eee_phy(tp);
3287        rtl_enable_eee(tp);
3288}
3289
3290static void rtl8168g_2_hw_phy_config(struct rtl8169_private *tp)
3291{
3292        rtl_apply_firmware(tp);
3293        rtl8168g_config_eee_phy(tp);
3294        rtl_enable_eee(tp);
3295}
3296
3297static void rtl8168h_1_hw_phy_config(struct rtl8169_private *tp)
3298{
3299        u16 dout_tapbin;
3300        u32 data;
3301
3302        rtl_apply_firmware(tp);
3303
3304        /* CHN EST parameters adjust - giga master */
3305        rtl_writephy(tp, 0x1f, 0x0a43);
3306        rtl_writephy(tp, 0x13, 0x809b);
3307        rtl_w0w1_phy(tp, 0x14, 0x8000, 0xf800);
3308        rtl_writephy(tp, 0x13, 0x80a2);
3309        rtl_w0w1_phy(tp, 0x14, 0x8000, 0xff00);
3310        rtl_writephy(tp, 0x13, 0x80a4);
3311        rtl_w0w1_phy(tp, 0x14, 0x8500, 0xff00);
3312        rtl_writephy(tp, 0x13, 0x809c);
3313        rtl_w0w1_phy(tp, 0x14, 0xbd00, 0xff00);
3314        rtl_writephy(tp, 0x1f, 0x0000);
3315
3316        /* CHN EST parameters adjust - giga slave */
3317        rtl_writephy(tp, 0x1f, 0x0a43);
3318        rtl_writephy(tp, 0x13, 0x80ad);
3319        rtl_w0w1_phy(tp, 0x14, 0x7000, 0xf800);
3320        rtl_writephy(tp, 0x13, 0x80b4);
3321        rtl_w0w1_phy(tp, 0x14, 0x5000, 0xff00);
3322        rtl_writephy(tp, 0x13, 0x80ac);
3323        rtl_w0w1_phy(tp, 0x14, 0x4000, 0xff00);
3324        rtl_writephy(tp, 0x1f, 0x0000);
3325
3326        /* CHN EST parameters adjust - fnet */
3327        rtl_writephy(tp, 0x1f, 0x0a43);
3328        rtl_writephy(tp, 0x13, 0x808e);
3329        rtl_w0w1_phy(tp, 0x14, 0x1200, 0xff00);
3330        rtl_writephy(tp, 0x13, 0x8090);
3331        rtl_w0w1_phy(tp, 0x14, 0xe500, 0xff00);
3332        rtl_writephy(tp, 0x13, 0x8092);
3333        rtl_w0w1_phy(tp, 0x14, 0x9f00, 0xff00);
3334        rtl_writephy(tp, 0x1f, 0x0000);
3335
3336        /* enable R-tune & PGA-retune function */
3337        dout_tapbin = 0;
3338        rtl_writephy(tp, 0x1f, 0x0a46);
3339        data = rtl_readphy(tp, 0x13);
3340        data &= 3;
3341        data <<= 2;
3342        dout_tapbin |= data;
3343        data = rtl_readphy(tp, 0x12);
3344        data &= 0xc000;
3345        data >>= 14;
3346        dout_tapbin |= data;
3347        dout_tapbin = ~(dout_tapbin^0x08);
3348        dout_tapbin <<= 12;
3349        dout_tapbin &= 0xf000;
3350        rtl_writephy(tp, 0x1f, 0x0a43);
3351        rtl_writephy(tp, 0x13, 0x827a);
3352        rtl_w0w1_phy(tp, 0x14, dout_tapbin, 0xf000);
3353        rtl_writephy(tp, 0x13, 0x827b);
3354        rtl_w0w1_phy(tp, 0x14, dout_tapbin, 0xf000);
3355        rtl_writephy(tp, 0x13, 0x827c);
3356        rtl_w0w1_phy(tp, 0x14, dout_tapbin, 0xf000);
3357        rtl_writephy(tp, 0x13, 0x827d);
3358        rtl_w0w1_phy(tp, 0x14, dout_tapbin, 0xf000);
3359
3360        rtl_writephy(tp, 0x1f, 0x0a43);
3361        rtl_writephy(tp, 0x13, 0x0811);
3362        rtl_w0w1_phy(tp, 0x14, 0x0800, 0x0000);
3363        rtl_writephy(tp, 0x1f, 0x0a42);
3364        rtl_w0w1_phy(tp, 0x16, 0x0002, 0x0000);
3365        rtl_writephy(tp, 0x1f, 0x0000);
3366
3367        /* enable GPHY 10M */
3368        phy_modify_paged(tp->phydev, 0x0a44, 0x11, 0, BIT(11));
3369
3370        /* SAR ADC performance */
3371        phy_modify_paged(tp->phydev, 0x0bca, 0x17, BIT(12) | BIT(13), BIT(14));
3372
3373        rtl_writephy(tp, 0x1f, 0x0a43);
3374        rtl_writephy(tp, 0x13, 0x803f);
3375        rtl_w0w1_phy(tp, 0x14, 0x0000, 0x3000);
3376        rtl_writephy(tp, 0x13, 0x8047);
3377        rtl_w0w1_phy(tp, 0x14, 0x0000, 0x3000);
3378        rtl_writephy(tp, 0x13, 0x804f);
3379        rtl_w0w1_phy(tp, 0x14, 0x0000, 0x3000);
3380        rtl_writephy(tp, 0x13, 0x8057);
3381        rtl_w0w1_phy(tp, 0x14, 0x0000, 0x3000);
3382        rtl_writephy(tp, 0x13, 0x805f);
3383        rtl_w0w1_phy(tp, 0x14, 0x0000, 0x3000);
3384        rtl_writephy(tp, 0x13, 0x8067);
3385        rtl_w0w1_phy(tp, 0x14, 0x0000, 0x3000);
3386        rtl_writephy(tp, 0x13, 0x806f);
3387        rtl_w0w1_phy(tp, 0x14, 0x0000, 0x3000);
3388        rtl_writephy(tp, 0x1f, 0x0000);
3389
3390        /* disable phy pfm mode */
3391        phy_modify_paged(tp->phydev, 0x0a44, 0x11, BIT(7), 0);
3392
3393        rtl8168g_disable_aldps(tp);
3394        rtl8168g_config_eee_phy(tp);
3395        rtl_enable_eee(tp);
3396}
3397
3398static void rtl8168h_2_hw_phy_config(struct rtl8169_private *tp)
3399{
3400        u16 ioffset_p3, ioffset_p2, ioffset_p1, ioffset_p0;
3401        u16 rlen;
3402        u32 data;
3403
3404        rtl_apply_firmware(tp);
3405
3406        /* CHIN EST parameter update */
3407        rtl_writephy(tp, 0x1f, 0x0a43);
3408        rtl_writephy(tp, 0x13, 0x808a);
3409        rtl_w0w1_phy(tp, 0x14, 0x000a, 0x003f);
3410        rtl_writephy(tp, 0x1f, 0x0000);
3411
3412        /* enable R-tune & PGA-retune function */
3413        rtl_writephy(tp, 0x1f, 0x0a43);
3414        rtl_writephy(tp, 0x13, 0x0811);
3415        rtl_w0w1_phy(tp, 0x14, 0x0800, 0x0000);
3416        rtl_writephy(tp, 0x1f, 0x0a42);
3417        rtl_w0w1_phy(tp, 0x16, 0x0002, 0x0000);
3418        rtl_writephy(tp, 0x1f, 0x0000);
3419
3420        /* enable GPHY 10M */
3421        phy_modify_paged(tp->phydev, 0x0a44, 0x11, 0, BIT(11));
3422
3423        r8168_mac_ocp_write(tp, 0xdd02, 0x807d);
3424        data = r8168_mac_ocp_read(tp, 0xdd02);
3425        ioffset_p3 = ((data & 0x80)>>7);
3426        ioffset_p3 <<= 3;
3427
3428        data = r8168_mac_ocp_read(tp, 0xdd00);
3429        ioffset_p3 |= ((data & (0xe000))>>13);
3430        ioffset_p2 = ((data & (0x1e00))>>9);
3431        ioffset_p1 = ((data & (0x01e0))>>5);
3432        ioffset_p0 = ((data & 0x0010)>>4);
3433        ioffset_p0 <<= 3;
3434        ioffset_p0 |= (data & (0x07));
3435        data = (ioffset_p3<<12)|(ioffset_p2<<8)|(ioffset_p1<<4)|(ioffset_p0);
3436
3437        if ((ioffset_p3 != 0x0f) || (ioffset_p2 != 0x0f) ||
3438            (ioffset_p1 != 0x0f) || (ioffset_p0 != 0x0f)) {
3439                rtl_writephy(tp, 0x1f, 0x0bcf);
3440                rtl_writephy(tp, 0x16, data);
3441                rtl_writephy(tp, 0x1f, 0x0000);
3442        }
3443
3444        /* Modify rlen (TX LPF corner frequency) level */
3445        rtl_writephy(tp, 0x1f, 0x0bcd);
3446        data = rtl_readphy(tp, 0x16);
3447        data &= 0x000f;
3448        rlen = 0;
3449        if (data > 3)
3450                rlen = data - 3;
3451        data = rlen | (rlen<<4) | (rlen<<8) | (rlen<<12);
3452        rtl_writephy(tp, 0x17, data);
3453        rtl_writephy(tp, 0x1f, 0x0bcd);
3454        rtl_writephy(tp, 0x1f, 0x0000);
3455
3456        /* disable phy pfm mode */
3457        phy_modify_paged(tp->phydev, 0x0a44, 0x11, BIT(7), 0);
3458
3459        rtl8168g_disable_aldps(tp);
3460        rtl8168g_config_eee_phy(tp);
3461        rtl_enable_eee(tp);
3462}
3463
3464static void rtl8168ep_1_hw_phy_config(struct rtl8169_private *tp)
3465{
3466        /* Enable PHY auto speed down */
3467        phy_modify_paged(tp->phydev, 0x0a44, 0x11, 0, BIT(3) | BIT(2));
3468
3469        rtl8168g_phy_adjust_10m_aldps(tp);
3470
3471        /* Enable EEE auto-fallback function */
3472        phy_modify_paged(tp->phydev, 0x0a4b, 0x11, 0, BIT(2));
3473
3474        /* Enable UC LPF tune function */
3475        rtl_writephy(tp, 0x1f, 0x0a43);
3476        rtl_writephy(tp, 0x13, 0x8012);
3477        rtl_w0w1_phy(tp, 0x14, 0x8000, 0x0000);
3478        rtl_writephy(tp, 0x1f, 0x0000);
3479
3480        /* set rg_sel_sdm_rate */
3481        phy_modify_paged(tp->phydev, 0x0c42, 0x11, BIT(13), BIT(14));
3482
3483        rtl8168g_disable_aldps(tp);
3484        rtl8168g_config_eee_phy(tp);
3485        rtl_enable_eee(tp);
3486}
3487
3488static void rtl8168ep_2_hw_phy_config(struct rtl8169_private *tp)
3489{
3490        rtl8168g_phy_adjust_10m_aldps(tp);
3491
3492        /* Enable UC LPF tune function */
3493        rtl_writephy(tp, 0x1f, 0x0a43);
3494        rtl_writephy(tp, 0x13, 0x8012);
3495        rtl_w0w1_phy(tp, 0x14, 0x8000, 0x0000);
3496        rtl_writephy(tp, 0x1f, 0x0000);
3497
3498        /* Set rg_sel_sdm_rate */
3499        phy_modify_paged(tp->phydev, 0x0c42, 0x11, BIT(13), BIT(14));
3500
3501        /* Channel estimation parameters */
3502        rtl_writephy(tp, 0x1f, 0x0a43);
3503        rtl_writephy(tp, 0x13, 0x80f3);
3504        rtl_w0w1_phy(tp, 0x14, 0x8b00, ~0x8bff);
3505        rtl_writephy(tp, 0x13, 0x80f0);
3506        rtl_w0w1_phy(tp, 0x14, 0x3a00, ~0x3aff);
3507        rtl_writephy(tp, 0x13, 0x80ef);
3508        rtl_w0w1_phy(tp, 0x14, 0x0500, ~0x05ff);
3509        rtl_writephy(tp, 0x13, 0x80f6);
3510        rtl_w0w1_phy(tp, 0x14, 0x6e00, ~0x6eff);
3511        rtl_writephy(tp, 0x13, 0x80ec);
3512        rtl_w0w1_phy(tp, 0x14, 0x6800, ~0x68ff);
3513        rtl_writephy(tp, 0x13, 0x80ed);
3514        rtl_w0w1_phy(tp, 0x14, 0x7c00, ~0x7cff);
3515        rtl_writephy(tp, 0x13, 0x80f2);
3516        rtl_w0w1_phy(tp, 0x14, 0xf400, ~0xf4ff);
3517        rtl_writephy(tp, 0x13, 0x80f4);
3518        rtl_w0w1_phy(tp, 0x14, 0x8500, ~0x85ff);
3519        rtl_writephy(tp, 0x1f, 0x0a43);
3520        rtl_writephy(tp, 0x13, 0x8110);
3521        rtl_w0w1_phy(tp, 0x14, 0xa800, ~0xa8ff);
3522        rtl_writephy(tp, 0x13, 0x810f);
3523        rtl_w0w1_phy(tp, 0x14, 0x1d00, ~0x1dff);
3524        rtl_writephy(tp, 0x13, 0x8111);
3525        rtl_w0w1_phy(tp, 0x14, 0xf500, ~0xf5ff);
3526        rtl_writephy(tp, 0x13, 0x8113);
3527        rtl_w0w1_phy(tp, 0x14, 0x6100, ~0x61ff);
3528        rtl_writephy(tp, 0x13, 0x8115);
3529        rtl_w0w1_phy(tp, 0x14, 0x9200, ~0x92ff);
3530        rtl_writephy(tp, 0x13, 0x810e);
3531        rtl_w0w1_phy(tp, 0x14, 0x0400, ~0x04ff);
3532        rtl_writephy(tp, 0x13, 0x810c);
3533        rtl_w0w1_phy(tp, 0x14, 0x7c00, ~0x7cff);
3534        rtl_writephy(tp, 0x13, 0x810b);
3535        rtl_w0w1_phy(tp, 0x14, 0x5a00, ~0x5aff);
3536        rtl_writephy(tp, 0x1f, 0x0a43);
3537        rtl_writephy(tp, 0x13, 0x80d1);
3538        rtl_w0w1_phy(tp, 0x14, 0xff00, ~0xffff);
3539        rtl_writephy(tp, 0x13, 0x80cd);
3540        rtl_w0w1_phy(tp, 0x14, 0x9e00, ~0x9eff);
3541        rtl_writephy(tp, 0x13, 0x80d3);
3542        rtl_w0w1_phy(tp, 0x14, 0x0e00, ~0x0eff);
3543        rtl_writephy(tp, 0x13, 0x80d5);
3544        rtl_w0w1_phy(tp, 0x14, 0xca00, ~0xcaff);
3545        rtl_writephy(tp, 0x13, 0x80d7);
3546        rtl_w0w1_phy(tp, 0x14, 0x8400, ~0x84ff);
3547
3548        /* Force PWM-mode */
3549        rtl_writephy(tp, 0x1f, 0x0bcd);
3550        rtl_writephy(tp, 0x14, 0x5065);
3551        rtl_writephy(tp, 0x14, 0xd065);
3552        rtl_writephy(tp, 0x1f, 0x0bc8);
3553        rtl_writephy(tp, 0x12, 0x00ed);
3554        rtl_writephy(tp, 0x1f, 0x0bcd);
3555        rtl_writephy(tp, 0x14, 0x1065);
3556        rtl_writephy(tp, 0x14, 0x9065);
3557        rtl_writephy(tp, 0x14, 0x1065);
3558        rtl_writephy(tp, 0x1f, 0x0000);
3559
3560        rtl8168g_disable_aldps(tp);
3561        rtl8168g_config_eee_phy(tp);
3562        rtl_enable_eee(tp);
3563}
3564
3565static void rtl8102e_hw_phy_config(struct rtl8169_private *tp)
3566{
3567        static const struct phy_reg phy_reg_init[] = {
3568                { 0x1f, 0x0003 },
3569                { 0x08, 0x441d },
3570                { 0x01, 0x9100 },
3571                { 0x1f, 0x0000 }
3572        };
3573
3574        rtl_writephy(tp, 0x1f, 0x0000);
3575        rtl_patchphy(tp, 0x11, 1 << 12);
3576        rtl_patchphy(tp, 0x19, 1 << 13);
3577        rtl_patchphy(tp, 0x10, 1 << 15);
3578
3579        rtl_writephy_batch(tp, phy_reg_init);
3580}
3581
3582static void rtl8105e_hw_phy_config(struct rtl8169_private *tp)
3583{
3584        static const struct phy_reg phy_reg_init[] = {
3585                { 0x1f, 0x0005 },
3586                { 0x1a, 0x0000 },
3587                { 0x1f, 0x0000 },
3588
3589                { 0x1f, 0x0004 },
3590                { 0x1c, 0x0000 },
3591                { 0x1f, 0x0000 },
3592
3593                { 0x1f, 0x0001 },
3594                { 0x15, 0x7701 },
3595                { 0x1f, 0x0000 }
3596        };
3597
3598        /* Disable ALDPS before ram code */
3599        rtl_writephy(tp, 0x1f, 0x0000);
3600        rtl_writephy(tp, 0x18, 0x0310);
3601        msleep(100);
3602
3603        rtl_apply_firmware(tp);
3604
3605        rtl_writephy_batch(tp, phy_reg_init);
3606}
3607
3608static void rtl8402_hw_phy_config(struct rtl8169_private *tp)
3609{
3610        /* Disable ALDPS before setting firmware */
3611        rtl_writephy(tp, 0x1f, 0x0000);
3612        rtl_writephy(tp, 0x18, 0x0310);
3613        msleep(20);
3614
3615        rtl_apply_firmware(tp);
3616
3617        /* EEE setting */
3618        rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
3619        rtl_writephy(tp, 0x1f, 0x0004);
3620        rtl_writephy(tp, 0x10, 0x401f);
3621        rtl_writephy(tp, 0x19, 0x7030);
3622        rtl_writephy(tp, 0x1f, 0x0000);
3623}
3624
3625static void rtl8106e_hw_phy_config(struct rtl8169_private *tp)
3626{
3627        static const struct phy_reg phy_reg_init[] = {
3628                { 0x1f, 0x0004 },
3629                { 0x10, 0xc07f },
3630                { 0x19, 0x7030 },
3631                { 0x1f, 0x0000 }
3632        };
3633
3634        /* Disable ALDPS before ram code */
3635        rtl_writephy(tp, 0x1f, 0x0000);
3636        rtl_writephy(tp, 0x18, 0x0310);
3637        msleep(100);
3638
3639        rtl_apply_firmware(tp);
3640
3641        rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
3642        rtl_writephy_batch(tp, phy_reg_init);
3643
3644        rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
3645}
3646
3647static void rtl_hw_phy_config(struct net_device *dev)
3648{
3649        static const rtl_generic_fct phy_configs[] = {
3650                /* PCI devices. */
3651                [RTL_GIGA_MAC_VER_02] = rtl8169s_hw_phy_config,
3652                [RTL_GIGA_MAC_VER_03] = rtl8169s_hw_phy_config,
3653                [RTL_GIGA_MAC_VER_04] = rtl8169sb_hw_phy_config,
3654                [RTL_GIGA_MAC_VER_05] = rtl8169scd_hw_phy_config,
3655                [RTL_GIGA_MAC_VER_06] = rtl8169sce_hw_phy_config,
3656                /* PCI-E devices. */
3657                [RTL_GIGA_MAC_VER_07] = rtl8102e_hw_phy_config,
3658                [RTL_GIGA_MAC_VER_08] = rtl8102e_hw_phy_config,
3659                [RTL_GIGA_MAC_VER_09] = rtl8102e_hw_phy_config,
3660                [RTL_GIGA_MAC_VER_10] = NULL,
3661                [RTL_GIGA_MAC_VER_11] = rtl8168bb_hw_phy_config,
3662                [RTL_GIGA_MAC_VER_12] = rtl8168bef_hw_phy_config,
3663                [RTL_GIGA_MAC_VER_13] = NULL,
3664                [RTL_GIGA_MAC_VER_14] = NULL,
3665                [RTL_GIGA_MAC_VER_15] = NULL,
3666                [RTL_GIGA_MAC_VER_16] = NULL,
3667                [RTL_GIGA_MAC_VER_17] = rtl8168bef_hw_phy_config,
3668                [RTL_GIGA_MAC_VER_18] = rtl8168cp_1_hw_phy_config,
3669                [RTL_GIGA_MAC_VER_19] = rtl8168c_1_hw_phy_config,
3670                [RTL_GIGA_MAC_VER_20] = rtl8168c_2_hw_phy_config,
3671                [RTL_GIGA_MAC_VER_21] = rtl8168c_3_hw_phy_config,
3672                [RTL_GIGA_MAC_VER_22] = rtl8168c_4_hw_phy_config,
3673                [RTL_GIGA_MAC_VER_23] = rtl8168cp_2_hw_phy_config,
3674                [RTL_GIGA_MAC_VER_24] = rtl8168cp_2_hw_phy_config,
3675                [RTL_GIGA_MAC_VER_25] = rtl8168d_1_hw_phy_config,
3676                [RTL_GIGA_MAC_VER_26] = rtl8168d_2_hw_phy_config,
3677                [RTL_GIGA_MAC_VER_27] = rtl8168d_3_hw_phy_config,
3678                [RTL_GIGA_MAC_VER_28] = rtl8168d_4_hw_phy_config,
3679                [RTL_GIGA_MAC_VER_29] = rtl8105e_hw_phy_config,
3680                [RTL_GIGA_MAC_VER_30] = rtl8105e_hw_phy_config,
3681                [RTL_GIGA_MAC_VER_31] = NULL,
3682                [RTL_GIGA_MAC_VER_32] = rtl8168e_1_hw_phy_config,
3683                [RTL_GIGA_MAC_VER_33] = rtl8168e_1_hw_phy_config,
3684                [RTL_GIGA_MAC_VER_34] = rtl8168e_2_hw_phy_config,
3685                [RTL_GIGA_MAC_VER_35] = rtl8168f_1_hw_phy_config,
3686                [RTL_GIGA_MAC_VER_36] = rtl8168f_2_hw_phy_config,
3687                [RTL_GIGA_MAC_VER_37] = rtl8402_hw_phy_config,
3688                [RTL_GIGA_MAC_VER_38] = rtl8411_hw_phy_config,
3689                [RTL_GIGA_MAC_VER_39] = rtl8106e_hw_phy_config,
3690                [RTL_GIGA_MAC_VER_40] = rtl8168g_1_hw_phy_config,
3691                [RTL_GIGA_MAC_VER_41] = NULL,
3692                [RTL_GIGA_MAC_VER_42] = rtl8168g_2_hw_phy_config,
3693                [RTL_GIGA_MAC_VER_43] = rtl8168g_2_hw_phy_config,
3694                [RTL_GIGA_MAC_VER_44] = rtl8168g_2_hw_phy_config,
3695                [RTL_GIGA_MAC_VER_45] = rtl8168h_1_hw_phy_config,
3696                [RTL_GIGA_MAC_VER_46] = rtl8168h_2_hw_phy_config,
3697                [RTL_GIGA_MAC_VER_47] = rtl8168h_1_hw_phy_config,
3698                [RTL_GIGA_MAC_VER_48] = rtl8168h_2_hw_phy_config,
3699                [RTL_GIGA_MAC_VER_49] = rtl8168ep_1_hw_phy_config,
3700                [RTL_GIGA_MAC_VER_50] = rtl8168ep_2_hw_phy_config,
3701                [RTL_GIGA_MAC_VER_51] = rtl8168ep_2_hw_phy_config,
3702        };
3703        struct rtl8169_private *tp = netdev_priv(dev);
3704
3705        if (phy_configs[tp->mac_version])
3706                phy_configs[tp->mac_version](tp);
3707}
3708
3709static void rtl_schedule_task(struct rtl8169_private *tp, enum rtl_flag flag)
3710{
3711        if (!test_and_set_bit(flag, tp->wk.flags))
3712                schedule_work(&tp->wk.work);
3713}
3714
3715static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
3716{
3717        rtl_hw_phy_config(dev);
3718
3719        if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
3720                pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
3721                pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
3722                netif_dbg(tp, drv, dev,
3723                          "Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
3724                RTL_W8(tp, 0x82, 0x01);
3725        }
3726
3727        /* We may have called phy_speed_down before */
3728        phy_speed_up(tp->phydev);
3729
3730        genphy_soft_reset(tp->phydev);
3731}
3732
3733static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
3734{
3735        rtl_lock_work(tp);
3736
3737        rtl_unlock_config_regs(tp);
3738
3739        RTL_W32(tp, MAC4, addr[4] | addr[5] << 8);
3740        RTL_R32(tp, MAC4);
3741
3742        RTL_W32(tp, MAC0, addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
3743        RTL_R32(tp, MAC0);
3744
3745        if (tp->mac_version == RTL_GIGA_MAC_VER_34)
3746                rtl_rar_exgmac_set(tp, addr);
3747
3748        rtl_lock_config_regs(tp);
3749
3750        rtl_unlock_work(tp);
3751}
3752
3753static int rtl_set_mac_address(struct net_device *dev, void *p)
3754{
3755        struct rtl8169_private *tp = netdev_priv(dev);
3756        struct device *d = tp_to_dev(tp);
3757        int ret;
3758
3759        ret = eth_mac_addr(dev, p);
3760        if (ret)
3761                return ret;
3762
3763        pm_runtime_get_noresume(d);
3764
3765        if (pm_runtime_active(d))
3766                rtl_rar_set(tp, dev->dev_addr);
3767
3768        pm_runtime_put_noidle(d);
3769
3770        return 0;
3771}
3772
3773static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3774{
3775        struct rtl8169_private *tp = netdev_priv(dev);
3776
3777        if (!netif_running(dev))
3778                return -ENODEV;
3779
3780        return phy_mii_ioctl(tp->phydev, ifr, cmd);
3781}
3782
3783static void rtl_wol_suspend_quirk(struct rtl8169_private *tp)
3784{
3785        switch (tp->mac_version) {
3786        case RTL_GIGA_MAC_VER_25:
3787        case RTL_GIGA_MAC_VER_26:
3788        case RTL_GIGA_MAC_VER_29:
3789        case RTL_GIGA_MAC_VER_30:
3790        case RTL_GIGA_MAC_VER_32:
3791        case RTL_GIGA_MAC_VER_33:
3792        case RTL_GIGA_MAC_VER_34:
3793        case RTL_GIGA_MAC_VER_37 ... RTL_GIGA_MAC_VER_51:
3794                RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) |
3795                        AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
3796                break;
3797        default:
3798                break;
3799        }
3800}
3801
3802static void rtl_pll_power_down(struct rtl8169_private *tp)
3803{
3804        if (r8168_check_dash(tp))
3805                return;
3806
3807        if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
3808            tp->mac_version == RTL_GIGA_MAC_VER_33)
3809                rtl_ephy_write(tp, 0x19, 0xff64);
3810
3811        if (device_may_wakeup(tp_to_dev(tp))) {
3812                phy_speed_down(tp->phydev, false);
3813                rtl_wol_suspend_quirk(tp);
3814                return;
3815        }
3816
3817        switch (tp->mac_version) {
3818        case RTL_GIGA_MAC_VER_25 ... RTL_GIGA_MAC_VER_33:
3819        case RTL_GIGA_MAC_VER_37:
3820        case RTL_GIGA_MAC_VER_39:
3821        case RTL_GIGA_MAC_VER_43:
3822        case RTL_GIGA_MAC_VER_44:
3823        case RTL_GIGA_MAC_VER_45:
3824        case RTL_GIGA_MAC_VER_46:
3825        case RTL_GIGA_MAC_VER_47:
3826        case RTL_GIGA_MAC_VER_48:
3827        case RTL_GIGA_MAC_VER_50:
3828        case RTL_GIGA_MAC_VER_51:
3829                RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~0x80);
3830                break;
3831        case RTL_GIGA_MAC_VER_40:
3832        case RTL_GIGA_MAC_VER_41:
3833        case RTL_GIGA_MAC_VER_49:
3834                rtl_eri_clear_bits(tp, 0x1a8, ERIAR_MASK_1111, 0xfc000000);
3835                RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~0x80);
3836                break;
3837        default:
3838                break;
3839        }
3840}
3841
3842static void rtl_pll_power_up(struct rtl8169_private *tp)
3843{
3844        switch (tp->mac_version) {
3845        case RTL_GIGA_MAC_VER_25 ... RTL_GIGA_MAC_VER_33:
3846        case RTL_GIGA_MAC_VER_37:
3847        case RTL_GIGA_MAC_VER_39:
3848        case RTL_GIGA_MAC_VER_43:
3849                RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0x80);
3850                break;
3851        case RTL_GIGA_MAC_VER_44:
3852        case RTL_GIGA_MAC_VER_45:
3853        case RTL_GIGA_MAC_VER_46:
3854        case RTL_GIGA_MAC_VER_47:
3855        case RTL_GIGA_MAC_VER_48:
3856        case RTL_GIGA_MAC_VER_50:
3857        case RTL_GIGA_MAC_VER_51:
3858                RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0xc0);
3859                break;
3860        case RTL_GIGA_MAC_VER_40:
3861        case RTL_GIGA_MAC_VER_41:
3862        case RTL_GIGA_MAC_VER_49:
3863                RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0xc0);
3864                rtl_eri_set_bits(tp, 0x1a8, ERIAR_MASK_1111, 0xfc000000);
3865                break;
3866        default:
3867                break;
3868        }
3869
3870        phy_resume(tp->phydev);
3871        /* give MAC/PHY some time to resume */
3872        msleep(20);
3873}
3874
3875static void rtl_init_rxcfg(struct rtl8169_private *tp)
3876{
3877        switch (tp->mac_version) {
3878        case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
3879        case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
3880                RTL_W32(tp, RxConfig, RX_FIFO_THRESH | RX_DMA_BURST);
3881                break;
3882        case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
3883        case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36:
3884        case RTL_GIGA_MAC_VER_38:
3885                RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST);
3886                break;
3887        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
3888                RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST | RX_EARLY_OFF);
3889                break;
3890        default:
3891                RTL_W32(tp, RxConfig, RX128_INT_EN | RX_DMA_BURST);
3892                break;
3893        }
3894}
3895
3896static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
3897{
3898        tp->dirty_tx = tp->cur_tx = tp->cur_rx = 0;
3899}
3900
3901static void r8168c_hw_jumbo_enable(struct rtl8169_private *tp)
3902{
3903        RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
3904        RTL_W8(tp, Config4, RTL_R8(tp, Config4) | Jumbo_En1);
3905        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_512B);
3906}
3907
3908static void r8168c_hw_jumbo_disable(struct rtl8169_private *tp)
3909{
3910        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
3911        RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~Jumbo_En1);
3912        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
3913}
3914
3915static void r8168dp_hw_jumbo_enable(struct rtl8169_private *tp)
3916{
3917        RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
3918}
3919
3920static void r8168dp_hw_jumbo_disable(struct rtl8169_private *tp)
3921{
3922        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
3923}
3924
3925static void r8168e_hw_jumbo_enable(struct rtl8169_private *tp)
3926{
3927        RTL_W8(tp, MaxTxPacketSize, 0x3f);
3928        RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
3929        RTL_W8(tp, Config4, RTL_R8(tp, Config4) | 0x01);
3930        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_512B);
3931}
3932
3933static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
3934{
3935        RTL_W8(tp, MaxTxPacketSize, 0x0c);
3936        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
3937        RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~0x01);
3938        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
3939}
3940
3941static void r8168b_0_hw_jumbo_enable(struct rtl8169_private *tp)
3942{
3943        rtl_tx_performance_tweak(tp,
3944                PCI_EXP_DEVCTL_READRQ_512B | PCI_EXP_DEVCTL_NOSNOOP_EN);
3945}
3946
3947static void r8168b_0_hw_jumbo_disable(struct rtl8169_private *tp)
3948{
3949        rtl_tx_performance_tweak(tp,
3950                PCI_EXP_DEVCTL_READRQ_4096B | PCI_EXP_DEVCTL_NOSNOOP_EN);
3951}
3952
3953static void r8168b_1_hw_jumbo_enable(struct rtl8169_private *tp)
3954{
3955        r8168b_0_hw_jumbo_enable(tp);
3956
3957        RTL_W8(tp, Config4, RTL_R8(tp, Config4) | (1 << 0));
3958}
3959
3960static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
3961{
3962        r8168b_0_hw_jumbo_disable(tp);
3963
3964        RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~(1 << 0));
3965}
3966
3967static void rtl_hw_jumbo_enable(struct rtl8169_private *tp)
3968{
3969        rtl_unlock_config_regs(tp);
3970        switch (tp->mac_version) {
3971        case RTL_GIGA_MAC_VER_11:
3972                r8168b_0_hw_jumbo_enable(tp);
3973                break;
3974        case RTL_GIGA_MAC_VER_12:
3975        case RTL_GIGA_MAC_VER_17:
3976                r8168b_1_hw_jumbo_enable(tp);
3977                break;
3978        case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
3979                r8168c_hw_jumbo_enable(tp);
3980                break;
3981        case RTL_GIGA_MAC_VER_27 ... RTL_GIGA_MAC_VER_28:
3982                r8168dp_hw_jumbo_enable(tp);
3983                break;
3984        case RTL_GIGA_MAC_VER_31 ... RTL_GIGA_MAC_VER_34:
3985                r8168e_hw_jumbo_enable(tp);
3986                break;
3987        default:
3988                break;
3989        }
3990        rtl_lock_config_regs(tp);
3991}
3992
3993static void rtl_hw_jumbo_disable(struct rtl8169_private *tp)
3994{
3995        rtl_unlock_config_regs(tp);
3996        switch (tp->mac_version) {
3997        case RTL_GIGA_MAC_VER_11:
3998                r8168b_0_hw_jumbo_disable(tp);
3999                break;
4000        case RTL_GIGA_MAC_VER_12:
4001        case RTL_GIGA_MAC_VER_17:
4002                r8168b_1_hw_jumbo_disable(tp);
4003                break;
4004        case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
4005                r8168c_hw_jumbo_disable(tp);
4006                break;
4007        case RTL_GIGA_MAC_VER_27 ... RTL_GIGA_MAC_VER_28:
4008                r8168dp_hw_jumbo_disable(tp);
4009                break;
4010        case RTL_GIGA_MAC_VER_31 ... RTL_GIGA_MAC_VER_34:
4011                r8168e_hw_jumbo_disable(tp);
4012                break;
4013        default:
4014                break;
4015        }
4016        rtl_lock_config_regs(tp);
4017}
4018
4019DECLARE_RTL_COND(rtl_chipcmd_cond)
4020{
4021        return RTL_R8(tp, ChipCmd) & CmdReset;
4022}
4023
4024static void rtl_hw_reset(struct rtl8169_private *tp)
4025{
4026        RTL_W8(tp, ChipCmd, CmdReset);
4027
4028        rtl_udelay_loop_wait_low(tp, &rtl_chipcmd_cond, 100, 100);
4029}
4030
4031static void rtl_request_firmware(struct rtl8169_private *tp)
4032{
4033        struct rtl_fw *rtl_fw;
4034
4035        /* firmware loaded already or no firmware available */
4036        if (tp->rtl_fw || !tp->fw_name)
4037                return;
4038
4039        rtl_fw = kzalloc(sizeof(*rtl_fw), GFP_KERNEL);
4040        if (!rtl_fw) {
4041                netif_warn(tp, ifup, tp->dev, "Unable to load firmware, out of memory\n");
4042                return;
4043        }
4044
4045        rtl_fw->phy_write = rtl_writephy;
4046        rtl_fw->phy_read = rtl_readphy;
4047        rtl_fw->mac_mcu_write = mac_mcu_write;
4048        rtl_fw->mac_mcu_read = mac_mcu_read;
4049        rtl_fw->fw_name = tp->fw_name;
4050        rtl_fw->dev = tp_to_dev(tp);
4051
4052        if (rtl_fw_request_firmware(rtl_fw))
4053                kfree(rtl_fw);
4054        else
4055                tp->rtl_fw = rtl_fw;
4056}
4057
4058static void rtl_rx_close(struct rtl8169_private *tp)
4059{
4060        RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) & ~RX_CONFIG_ACCEPT_MASK);
4061}
4062
4063DECLARE_RTL_COND(rtl_npq_cond)
4064{
4065        return RTL_R8(tp, TxPoll) & NPQ;
4066}
4067
4068DECLARE_RTL_COND(rtl_txcfg_empty_cond)
4069{
4070        return RTL_R32(tp, TxConfig) & TXCFG_EMPTY;
4071}
4072
4073static void rtl8169_hw_reset(struct rtl8169_private *tp)
4074{
4075        /* Disable interrupts */
4076        rtl8169_irq_mask_and_ack(tp);
4077
4078        rtl_rx_close(tp);
4079
4080        switch (tp->mac_version) {
4081        case RTL_GIGA_MAC_VER_27:
4082        case RTL_GIGA_MAC_VER_28:
4083        case RTL_GIGA_MAC_VER_31:
4084                rtl_udelay_loop_wait_low(tp, &rtl_npq_cond, 20, 42*42);
4085                break;
4086        case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
4087        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
4088                RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
4089                rtl_udelay_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 666);
4090                break;
4091        default:
4092                RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
4093                udelay(100);
4094                break;
4095        }
4096
4097        rtl_hw_reset(tp);
4098}
4099
4100static void rtl_set_tx_config_registers(struct rtl8169_private *tp)
4101{
4102        u32 val = TX_DMA_BURST << TxDMAShift |
4103                  InterFrameGap << TxInterFrameGapShift;
4104
4105        if (rtl_is_8168evl_up(tp))
4106                val |= TXCFG_AUTO_FIFO;
4107
4108        RTL_W32(tp, TxConfig, val);
4109}
4110
4111static void rtl_set_rx_max_size(struct rtl8169_private *tp)
4112{
4113        /* Low hurts. Let's disable the filtering. */
4114        RTL_W16(tp, RxMaxSize, R8169_RX_BUF_SIZE + 1);
4115}
4116
4117static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp)
4118{
4119        /*
4120         * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
4121         * register to be written before TxDescAddrLow to work.
4122         * Switching from MMIO to I/O access fixes the issue as well.
4123         */
4124        RTL_W32(tp, TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
4125        RTL_W32(tp, TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
4126        RTL_W32(tp, RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
4127        RTL_W32(tp, RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
4128}
4129
4130static void rtl8169_set_magic_reg(struct rtl8169_private *tp, unsigned mac_version)
4131{
4132        u32 val;
4133
4134        if (tp->mac_version == RTL_GIGA_MAC_VER_05)
4135                val = 0x000fff00;
4136        else if (tp->mac_version == RTL_GIGA_MAC_VER_06)
4137                val = 0x00ffff00;
4138        else
4139                return;
4140
4141        if (RTL_R8(tp, Config2) & PCI_Clock_66MHz)
4142                val |= 0xff;
4143
4144        RTL_W32(tp, 0x7c, val);
4145}
4146
4147static void rtl_set_rx_mode(struct net_device *dev)
4148{
4149        struct rtl8169_private *tp = netdev_priv(dev);
4150        u32 mc_filter[2];       /* Multicast hash filter */
4151        int rx_mode;
4152        u32 tmp = 0;
4153
4154        if (dev->flags & IFF_PROMISC) {
4155                /* Unconditionally log net taps. */
4156                netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
4157                rx_mode =
4158                    AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
4159                    AcceptAllPhys;
4160                mc_filter[1] = mc_filter[0] = 0xffffffff;
4161        } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
4162                   (dev->flags & IFF_ALLMULTI)) {
4163                /* Too many to filter perfectly -- accept all multicasts. */
4164                rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
4165                mc_filter[1] = mc_filter[0] = 0xffffffff;
4166        } else {
4167                struct netdev_hw_addr *ha;
4168
4169                rx_mode = AcceptBroadcast | AcceptMyPhys;
4170                mc_filter[1] = mc_filter[0] = 0;
4171                netdev_for_each_mc_addr(ha, dev) {
4172                        int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
4173                        mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
4174                        rx_mode |= AcceptMulticast;
4175                }
4176        }
4177
4178        if (dev->features & NETIF_F_RXALL)
4179                rx_mode |= (AcceptErr | AcceptRunt);
4180
4181        tmp = (RTL_R32(tp, RxConfig) & ~RX_CONFIG_ACCEPT_MASK) | rx_mode;
4182
4183        if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
4184                u32 data = mc_filter[0];
4185
4186                mc_filter[0] = swab32(mc_filter[1]);
4187                mc_filter[1] = swab32(data);
4188        }
4189
4190        if (tp->mac_version == RTL_GIGA_MAC_VER_35)
4191                mc_filter[1] = mc_filter[0] = 0xffffffff;
4192
4193        RTL_W32(tp, MAR0 + 4, mc_filter[1]);
4194        RTL_W32(tp, MAR0 + 0, mc_filter[0]);
4195
4196        RTL_W32(tp, RxConfig, tmp);
4197}
4198
4199DECLARE_RTL_COND(rtl_csiar_cond)
4200{
4201        return RTL_R32(tp, CSIAR) & CSIAR_FLAG;
4202}
4203
4204static void rtl_csi_write(struct rtl8169_private *tp, int addr, int value)
4205{
4206        u32 func = PCI_FUNC(tp->pci_dev->devfn);
4207
4208        RTL_W32(tp, CSIDR, value);
4209        RTL_W32(tp, CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
4210                CSIAR_BYTE_ENABLE | func << 16);
4211
4212        rtl_udelay_loop_wait_low(tp, &rtl_csiar_cond, 10, 100);
4213}
4214
4215static u32 rtl_csi_read(struct rtl8169_private *tp, int addr)
4216{
4217        u32 func = PCI_FUNC(tp->pci_dev->devfn);
4218
4219        RTL_W32(tp, CSIAR, (addr & CSIAR_ADDR_MASK) | func << 16 |
4220                CSIAR_BYTE_ENABLE);
4221
4222        return rtl_udelay_loop_wait_high(tp, &rtl_csiar_cond, 10, 100) ?
4223                RTL_R32(tp, CSIDR) : ~0;
4224}
4225
4226static void rtl_csi_access_enable(struct rtl8169_private *tp, u8 val)
4227{
4228        struct pci_dev *pdev = tp->pci_dev;
4229        u32 csi;
4230
4231        /* According to Realtek the value at config space address 0x070f
4232         * controls the L0s/L1 entrance latency. We try standard ECAM access
4233         * first and if it fails fall back to CSI.
4234         */
4235        if (pdev->cfg_size > 0x070f &&
4236            pci_write_config_byte(pdev, 0x070f, val) == PCIBIOS_SUCCESSFUL)
4237                return;
4238
4239        netdev_notice_once(tp->dev,
4240                "No native access to PCI extended config space, falling back to CSI\n");
4241        csi = rtl_csi_read(tp, 0x070c) & 0x00ffffff;
4242        rtl_csi_write(tp, 0x070c, csi | val << 24);
4243}
4244
4245static void rtl_set_def_aspm_entry_latency(struct rtl8169_private *tp)
4246{
4247        rtl_csi_access_enable(tp, 0x27);
4248}
4249
4250struct ephy_info {
4251        unsigned int offset;
4252        u16 mask;
4253        u16 bits;
4254};
4255
4256static void __rtl_ephy_init(struct rtl8169_private *tp,
4257                            const struct ephy_info *e, int len)
4258{
4259        u16 w;
4260
4261        while (len-- > 0) {
4262                w = (rtl_ephy_read(tp, e->offset) & ~e->mask) | e->bits;
4263                rtl_ephy_write(tp, e->offset, w);
4264                e++;
4265        }
4266}
4267
4268#define rtl_ephy_init(tp, a) __rtl_ephy_init(tp, a, ARRAY_SIZE(a))
4269
4270static void rtl_disable_clock_request(struct rtl8169_private *tp)
4271{
4272        pcie_capability_clear_word(tp->pci_dev, PCI_EXP_LNKCTL,
4273                                   PCI_EXP_LNKCTL_CLKREQ_EN);
4274}
4275
4276static void rtl_enable_clock_request(struct rtl8169_private *tp)
4277{
4278        pcie_capability_set_word(tp->pci_dev, PCI_EXP_LNKCTL,
4279                                 PCI_EXP_LNKCTL_CLKREQ_EN);
4280}
4281
4282static void rtl_pcie_state_l2l3_disable(struct rtl8169_private *tp)
4283{
4284        /* work around an issue when PCI reset occurs during L2/L3 state */
4285        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Rdy_to_L23);
4286}
4287
4288static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
4289{
4290        /* Don't enable ASPM in the chip if OS can't control ASPM */
4291        if (enable && tp->aspm_manageable) {
4292                RTL_W8(tp, Config5, RTL_R8(tp, Config5) | ASPM_en);
4293                RTL_W8(tp, Config2, RTL_R8(tp, Config2) | ClkReqEn);
4294        } else {
4295                RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~ClkReqEn);
4296                RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~ASPM_en);
4297        }
4298
4299        udelay(10);
4300}
4301
4302static void rtl_set_fifo_size(struct rtl8169_private *tp, u16 rx_stat,
4303                              u16 tx_stat, u16 rx_dyn, u16 tx_dyn)
4304{
4305        /* Usage of dynamic vs. static FIFO is controlled by bit
4306         * TXCFG_AUTO_FIFO. Exact meaning of FIFO values isn't known.
4307         */
4308        rtl_eri_write(tp, 0xc8, ERIAR_MASK_1111, (rx_stat << 16) | rx_dyn);
4309        rtl_eri_write(tp, 0xe8, ERIAR_MASK_1111, (tx_stat << 16) | tx_dyn);
4310}
4311
4312static void rtl8168g_set_pause_thresholds(struct rtl8169_private *tp,
4313                                          u8 low, u8 high)
4314{
4315        /* FIFO thresholds for pause flow control */
4316        rtl_eri_write(tp, 0xcc, ERIAR_MASK_0001, low);
4317        rtl_eri_write(tp, 0xd0, ERIAR_MASK_0001, high);
4318}
4319
4320static void rtl_hw_start_8168bb(struct rtl8169_private *tp)
4321{
4322        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
4323
4324        if (tp->dev->mtu <= ETH_DATA_LEN) {
4325                rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B |
4326                                         PCI_EXP_DEVCTL_NOSNOOP_EN);
4327        }
4328}
4329
4330static void rtl_hw_start_8168bef(struct rtl8169_private *tp)
4331{
4332        rtl_hw_start_8168bb(tp);
4333
4334        RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~(1 << 0));
4335}
4336
4337static void __rtl_hw_start_8168cp(struct rtl8169_private *tp)
4338{
4339        RTL_W8(tp, Config1, RTL_R8(tp, Config1) | Speed_down);
4340
4341        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
4342
4343        if (tp->dev->mtu <= ETH_DATA_LEN)
4344                rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4345
4346        rtl_disable_clock_request(tp);
4347}
4348
4349static void rtl_hw_start_8168cp_1(struct rtl8169_private *tp)
4350{
4351        static const struct ephy_info e_info_8168cp[] = {
4352                { 0x01, 0,      0x0001 },
4353                { 0x02, 0x0800, 0x1000 },
4354                { 0x03, 0,      0x0042 },
4355                { 0x06, 0x0080, 0x0000 },
4356                { 0x07, 0,      0x2000 }
4357        };
4358
4359        rtl_set_def_aspm_entry_latency(tp);
4360
4361        rtl_ephy_init(tp, e_info_8168cp);
4362
4363        __rtl_hw_start_8168cp(tp);
4364}
4365
4366static void rtl_hw_start_8168cp_2(struct rtl8169_private *tp)
4367{
4368        rtl_set_def_aspm_entry_latency(tp);
4369
4370        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
4371
4372        if (tp->dev->mtu <= ETH_DATA_LEN)
4373                rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4374}
4375
4376static void rtl_hw_start_8168cp_3(struct rtl8169_private *tp)
4377{
4378        rtl_set_def_aspm_entry_latency(tp);
4379
4380        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
4381
4382        /* Magic. */
4383        RTL_W8(tp, DBG_REG, 0x20);
4384
4385        if (tp->dev->mtu <= ETH_DATA_LEN)
4386                rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4387}
4388
4389static void rtl_hw_start_8168c_1(struct rtl8169_private *tp)
4390{
4391        static const struct ephy_info e_info_8168c_1[] = {
4392                { 0x02, 0x0800, 0x1000 },
4393                { 0x03, 0,      0x0002 },
4394                { 0x06, 0x0080, 0x0000 }
4395        };
4396
4397        rtl_set_def_aspm_entry_latency(tp);
4398
4399        RTL_W8(tp, DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
4400
4401        rtl_ephy_init(tp, e_info_8168c_1);
4402
4403        __rtl_hw_start_8168cp(tp);
4404}
4405
4406static void rtl_hw_start_8168c_2(struct rtl8169_private *tp)
4407{
4408        static const struct ephy_info e_info_8168c_2[] = {
4409                { 0x01, 0,      0x0001 },
4410                { 0x03, 0x0400, 0x0220 }
4411        };
4412
4413        rtl_set_def_aspm_entry_latency(tp);
4414
4415        rtl_ephy_init(tp, e_info_8168c_2);
4416
4417        __rtl_hw_start_8168cp(tp);
4418}
4419
4420static void rtl_hw_start_8168c_3(struct rtl8169_private *tp)
4421{
4422        rtl_hw_start_8168c_2(tp);
4423}
4424
4425static void rtl_hw_start_8168c_4(struct rtl8169_private *tp)
4426{
4427        rtl_set_def_aspm_entry_latency(tp);
4428
4429        __rtl_hw_start_8168cp(tp);
4430}
4431
4432static void rtl_hw_start_8168d(struct rtl8169_private *tp)
4433{
4434        rtl_set_def_aspm_entry_latency(tp);
4435
4436        rtl_disable_clock_request(tp);
4437
4438        if (tp->dev->mtu <= ETH_DATA_LEN)
4439                rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4440}
4441
4442static void rtl_hw_start_8168dp(struct rtl8169_private *tp)
4443{
4444        rtl_set_def_aspm_entry_latency(tp);
4445
4446        if (tp->dev->mtu <= ETH_DATA_LEN)
4447                rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4448
4449        rtl_disable_clock_request(tp);
4450}
4451
4452static void rtl_hw_start_8168d_4(struct rtl8169_private *tp)
4453{
4454        static const struct ephy_info e_info_8168d_4[] = {
4455                { 0x0b, 0x0000, 0x0048 },
4456                { 0x19, 0x0020, 0x0050 },
4457                { 0x0c, 0x0100, 0x0020 }
4458        };
4459
4460        rtl_set_def_aspm_entry_latency(tp);
4461
4462        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4463
4464        rtl_ephy_init(tp, e_info_8168d_4);
4465
4466        rtl_enable_clock_request(tp);
4467}
4468
4469static void rtl_hw_start_8168e_1(struct rtl8169_private *tp)
4470{
4471        static const struct ephy_info e_info_8168e_1[] = {
4472                { 0x00, 0x0200, 0x0100 },
4473                { 0x00, 0x0000, 0x0004 },
4474                { 0x06, 0x0002, 0x0001 },
4475                { 0x06, 0x0000, 0x0030 },
4476                { 0x07, 0x0000, 0x2000 },
4477                { 0x00, 0x0000, 0x0020 },
4478                { 0x03, 0x5800, 0x2000 },
4479                { 0x03, 0x0000, 0x0001 },
4480                { 0x01, 0x0800, 0x1000 },
4481                { 0x07, 0x0000, 0x4000 },
4482                { 0x1e, 0x0000, 0x2000 },
4483                { 0x19, 0xffff, 0xfe6c },
4484                { 0x0a, 0x0000, 0x0040 }
4485        };
4486
4487        rtl_set_def_aspm_entry_latency(tp);
4488
4489        rtl_ephy_init(tp, e_info_8168e_1);
4490
4491        if (tp->dev->mtu <= ETH_DATA_LEN)
4492                rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4493
4494        rtl_disable_clock_request(tp);
4495
4496        /* Reset tx FIFO pointer */
4497        RTL_W32(tp, MISC, RTL_R32(tp, MISC) | TXPLA_RST);
4498        RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~TXPLA_RST);
4499
4500        RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
4501}
4502
4503static void rtl_hw_start_8168e_2(struct rtl8169_private *tp)
4504{
4505        static const struct ephy_info e_info_8168e_2[] = {
4506                { 0x09, 0x0000, 0x0080 },
4507                { 0x19, 0x0000, 0x0224 }
4508        };
4509
4510        rtl_set_def_aspm_entry_latency(tp);
4511
4512        rtl_ephy_init(tp, e_info_8168e_2);
4513
4514        if (tp->dev->mtu <= ETH_DATA_LEN)
4515                rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4516
4517        rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
4518        rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
4519        rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
4520        rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
4521        rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x07ff0060);
4522        rtl_eri_set_bits(tp, 0x1b0, ERIAR_MASK_0001, BIT(4));
4523        rtl_w0w1_eri(tp, 0x0d4, ERIAR_MASK_0011, 0x0c00, 0xff00);
4524
4525        rtl_disable_clock_request(tp);
4526
4527        RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
4528
4529        rtl8168_config_eee_mac(tp);
4530
4531        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
4532        RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
4533        RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
4534
4535        rtl_hw_aspm_clkreq_enable(tp, true);
4536}
4537
4538static void rtl_hw_start_8168f(struct rtl8169_private *tp)
4539{
4540        rtl_set_def_aspm_entry_latency(tp);
4541
4542        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4543
4544        rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
4545        rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
4546        rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
4547        rtl_reset_packet_filter(tp);
4548        rtl_eri_set_bits(tp, 0x1b0, ERIAR_MASK_0001, BIT(4));
4549        rtl_eri_set_bits(tp, 0x1d0, ERIAR_MASK_0001, BIT(4));
4550        rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
4551        rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x00000060);
4552
4553        rtl_disable_clock_request(tp);
4554
4555        RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
4556        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
4557        RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
4558        RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
4559
4560        rtl8168_config_eee_mac(tp);
4561}
4562
4563static void rtl_hw_start_8168f_1(struct rtl8169_private *tp)
4564{
4565        static const struct ephy_info e_info_8168f_1[] = {
4566                { 0x06, 0x00c0, 0x0020 },
4567                { 0x08, 0x0001, 0x0002 },
4568                { 0x09, 0x0000, 0x0080 },
4569                { 0x19, 0x0000, 0x0224 }
4570        };
4571
4572        rtl_hw_start_8168f(tp);
4573
4574        rtl_ephy_init(tp, e_info_8168f_1);
4575
4576        rtl_w0w1_eri(tp, 0x0d4, ERIAR_MASK_0011, 0x0c00, 0xff00);
4577}
4578
4579static void rtl_hw_start_8411(struct rtl8169_private *tp)
4580{
4581        static const struct ephy_info e_info_8168f_1[] = {
4582                { 0x06, 0x00c0, 0x0020 },
4583                { 0x0f, 0xffff, 0x5200 },
4584                { 0x1e, 0x0000, 0x4000 },
4585                { 0x19, 0x0000, 0x0224 }
4586        };
4587
4588        rtl_hw_start_8168f(tp);
4589        rtl_pcie_state_l2l3_disable(tp);
4590
4591        rtl_ephy_init(tp, e_info_8168f_1);
4592
4593        rtl_eri_set_bits(tp, 0x0d4, ERIAR_MASK_0011, 0x0c00);
4594}
4595
4596static void rtl_hw_start_8168g(struct rtl8169_private *tp)
4597{
4598        rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
4599        rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
4600
4601        rtl_set_def_aspm_entry_latency(tp);
4602
4603        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4604
4605        rtl_reset_packet_filter(tp);
4606        rtl_eri_write(tp, 0x2f8, ERIAR_MASK_0011, 0x1d8f);
4607
4608        RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
4609
4610        rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
4611        rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
4612
4613        rtl8168_config_eee_mac(tp);
4614
4615        rtl_w0w1_eri(tp, 0x2fc, ERIAR_MASK_0001, 0x01, 0x06);
4616        rtl_eri_clear_bits(tp, 0x1b0, ERIAR_MASK_0011, BIT(12));
4617
4618        rtl_pcie_state_l2l3_disable(tp);
4619}
4620
4621static void rtl_hw_start_8168g_1(struct rtl8169_private *tp)
4622{
4623        static const struct ephy_info e_info_8168g_1[] = {
4624                { 0x00, 0x0000, 0x0008 },
4625                { 0x0c, 0x37d0, 0x0820 },
4626                { 0x1e, 0x0000, 0x0001 },
4627                { 0x19, 0x8000, 0x0000 }
4628        };
4629
4630        rtl_hw_start_8168g(tp);
4631
4632        /* disable aspm and clock request before access ephy */
4633        rtl_hw_aspm_clkreq_enable(tp, false);
4634        rtl_ephy_init(tp, e_info_8168g_1);
4635        rtl_hw_aspm_clkreq_enable(tp, true);
4636}
4637
4638static void rtl_hw_start_8168g_2(struct rtl8169_private *tp)
4639{
4640        static const struct ephy_info e_info_8168g_2[] = {
4641                { 0x00, 0x0000, 0x0008 },
4642                { 0x0c, 0x3df0, 0x0200 },
4643                { 0x19, 0xffff, 0xfc00 },
4644                { 0x1e, 0xffff, 0x20eb }
4645        };
4646
4647        rtl_hw_start_8168g(tp);
4648
4649        /* disable aspm and clock request before access ephy */
4650        RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~ClkReqEn);
4651        RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~ASPM_en);
4652        rtl_ephy_init(tp, e_info_8168g_2);
4653}
4654
4655static void rtl_hw_start_8411_2(struct rtl8169_private *tp)
4656{
4657        static const struct ephy_info e_info_8411_2[] = {
4658                { 0x00, 0x0000, 0x0008 },
4659                { 0x0c, 0x3df0, 0x0200 },
4660                { 0x0f, 0xffff, 0x5200 },
4661                { 0x19, 0x0020, 0x0000 },
4662                { 0x1e, 0x0000, 0x2000 }
4663        };
4664
4665        rtl_hw_start_8168g(tp);
4666
4667        /* disable aspm and clock request before access ephy */
4668        rtl_hw_aspm_clkreq_enable(tp, false);
4669        rtl_ephy_init(tp, e_info_8411_2);
4670
4671        /* The following Realtek-provided magic fixes an issue with the RX unit
4672         * getting confused after the PHY having been powered-down.
4673         */
4674        r8168_mac_ocp_write(tp, 0xFC28, 0x0000);
4675        r8168_mac_ocp_write(tp, 0xFC2A, 0x0000);
4676        r8168_mac_ocp_write(tp, 0xFC2C, 0x0000);
4677        r8168_mac_ocp_write(tp, 0xFC2E, 0x0000);
4678        r8168_mac_ocp_write(tp, 0xFC30, 0x0000);
4679        r8168_mac_ocp_write(tp, 0xFC32, 0x0000);
4680        r8168_mac_ocp_write(tp, 0xFC34, 0x0000);
4681        r8168_mac_ocp_write(tp, 0xFC36, 0x0000);
4682        mdelay(3);
4683        r8168_mac_ocp_write(tp, 0xFC26, 0x0000);
4684
4685        r8168_mac_ocp_write(tp, 0xF800, 0xE008);
4686        r8168_mac_ocp_write(tp, 0xF802, 0xE00A);
4687        r8168_mac_ocp_write(tp, 0xF804, 0xE00C);
4688        r8168_mac_ocp_write(tp, 0xF806, 0xE00E);
4689        r8168_mac_ocp_write(tp, 0xF808, 0xE027);
4690        r8168_mac_ocp_write(tp, 0xF80A, 0xE04F);
4691        r8168_mac_ocp_write(tp, 0xF80C, 0xE05E);
4692        r8168_mac_ocp_write(tp, 0xF80E, 0xE065);
4693        r8168_mac_ocp_write(tp, 0xF810, 0xC602);
4694        r8168_mac_ocp_write(tp, 0xF812, 0xBE00);
4695        r8168_mac_ocp_write(tp, 0xF814, 0x0000);
4696        r8168_mac_ocp_write(tp, 0xF816, 0xC502);
4697        r8168_mac_ocp_write(tp, 0xF818, 0xBD00);
4698        r8168_mac_ocp_write(tp, 0xF81A, 0x074C);
4699        r8168_mac_ocp_write(tp, 0xF81C, 0xC302);
4700        r8168_mac_ocp_write(tp, 0xF81E, 0xBB00);
4701        r8168_mac_ocp_write(tp, 0xF820, 0x080A);
4702        r8168_mac_ocp_write(tp, 0xF822, 0x6420);
4703        r8168_mac_ocp_write(tp, 0xF824, 0x48C2);
4704        r8168_mac_ocp_write(tp, 0xF826, 0x8C20);
4705        r8168_mac_ocp_write(tp, 0xF828, 0xC516);
4706        r8168_mac_ocp_write(tp, 0xF82A, 0x64A4);
4707        r8168_mac_ocp_write(tp, 0xF82C, 0x49C0);
4708        r8168_mac_ocp_write(tp, 0xF82E, 0xF009);
4709        r8168_mac_ocp_write(tp, 0xF830, 0x74A2);
4710        r8168_mac_ocp_write(tp, 0xF832, 0x8CA5);
4711        r8168_mac_ocp_write(tp, 0xF834, 0x74A0);
4712        r8168_mac_ocp_write(tp, 0xF836, 0xC50E);
4713        r8168_mac_ocp_write(tp, 0xF838, 0x9CA2);
4714        r8168_mac_ocp_write(tp, 0xF83A, 0x1C11);
4715        r8168_mac_ocp_write(tp, 0xF83C, 0x9CA0);
4716        r8168_mac_ocp_write(tp, 0xF83E, 0xE006);
4717        r8168_mac_ocp_write(tp, 0xF840, 0x74F8);
4718        r8168_mac_ocp_write(tp, 0xF842, 0x48C4);
4719        r8168_mac_ocp_write(tp, 0xF844, 0x8CF8);
4720        r8168_mac_ocp_write(tp, 0xF846, 0xC404);
4721        r8168_mac_ocp_write(tp, 0xF848, 0xBC00);
4722        r8168_mac_ocp_write(tp, 0xF84A, 0xC403);
4723        r8168_mac_ocp_write(tp, 0xF84C, 0xBC00);
4724        r8168_mac_ocp_write(tp, 0xF84E, 0x0BF2);
4725        r8168_mac_ocp_write(tp, 0xF850, 0x0C0A);
4726        r8168_mac_ocp_write(tp, 0xF852, 0xE434);
4727        r8168_mac_ocp_write(tp, 0xF854, 0xD3C0);
4728        r8168_mac_ocp_write(tp, 0xF856, 0x49D9);
4729        r8168_mac_ocp_write(tp, 0xF858, 0xF01F);
4730        r8168_mac_ocp_write(tp, 0xF85A, 0xC526);
4731        r8168_mac_ocp_write(tp, 0xF85C, 0x64A5);
4732        r8168_mac_ocp_write(tp, 0xF85E, 0x1400);
4733        r8168_mac_ocp_write(tp, 0xF860, 0xF007);
4734        r8168_mac_ocp_write(tp, 0xF862, 0x0C01);
4735        r8168_mac_ocp_write(tp, 0xF864, 0x8CA5);
4736        r8168_mac_ocp_write(tp, 0xF866, 0x1C15);
4737        r8168_mac_ocp_write(tp, 0xF868, 0xC51B);
4738        r8168_mac_ocp_write(tp, 0xF86A, 0x9CA0);
4739        r8168_mac_ocp_write(tp, 0xF86C, 0xE013);
4740        r8168_mac_ocp_write(tp, 0xF86E, 0xC519);
4741        r8168_mac_ocp_write(tp, 0xF870, 0x74A0);
4742        r8168_mac_ocp_write(tp, 0xF872, 0x48C4);
4743        r8168_mac_ocp_write(tp, 0xF874, 0x8CA0);
4744        r8168_mac_ocp_write(tp, 0xF876, 0xC516);
4745        r8168_mac_ocp_write(tp, 0xF878, 0x74A4);
4746        r8168_mac_ocp_write(tp, 0xF87A, 0x48C8);
4747        r8168_mac_ocp_write(tp, 0xF87C, 0x48CA);
4748        r8168_mac_ocp_write(tp, 0xF87E, 0x9CA4);
4749        r8168_mac_ocp_write(tp, 0xF880, 0xC512);
4750        r8168_mac_ocp_write(tp, 0xF882, 0x1B00);
4751        r8168_mac_ocp_write(tp, 0xF884, 0x9BA0);
4752        r8168_mac_ocp_write(tp, 0xF886, 0x1B1C);
4753        r8168_mac_ocp_write(tp, 0xF888, 0x483F);
4754        r8168_mac_ocp_write(tp, 0xF88A, 0x9BA2);
4755        r8168_mac_ocp_write(tp, 0xF88C, 0x1B04);
4756        r8168_mac_ocp_write(tp, 0xF88E, 0xC508);
4757        r8168_mac_ocp_write(tp, 0xF890, 0x9BA0);
4758        r8168_mac_ocp_write(tp, 0xF892, 0xC505);
4759        r8168_mac_ocp_write(tp, 0xF894, 0xBD00);
4760        r8168_mac_ocp_write(tp, 0xF896, 0xC502);
4761        r8168_mac_ocp_write(tp, 0xF898, 0xBD00);
4762        r8168_mac_ocp_write(tp, 0xF89A, 0x0300);
4763        r8168_mac_ocp_write(tp, 0xF89C, 0x051E);
4764        r8168_mac_ocp_write(tp, 0xF89E, 0xE434);
4765        r8168_mac_ocp_write(tp, 0xF8A0, 0xE018);
4766        r8168_mac_ocp_write(tp, 0xF8A2, 0xE092);
4767        r8168_mac_ocp_write(tp, 0xF8A4, 0xDE20);
4768        r8168_mac_ocp_write(tp, 0xF8A6, 0xD3C0);
4769        r8168_mac_ocp_write(tp, 0xF8A8, 0xC50F);
4770        r8168_mac_ocp_write(tp, 0xF8AA, 0x76A4);
4771        r8168_mac_ocp_write(tp, 0xF8AC, 0x49E3);
4772        r8168_mac_ocp_write(tp, 0xF8AE, 0xF007);
4773        r8168_mac_ocp_write(tp, 0xF8B0, 0x49C0);
4774        r8168_mac_ocp_write(tp, 0xF8B2, 0xF103);
4775        r8168_mac_ocp_write(tp, 0xF8B4, 0xC607);
4776        r8168_mac_ocp_write(tp, 0xF8B6, 0xBE00);
4777        r8168_mac_ocp_write(tp, 0xF8B8, 0xC606);
4778        r8168_mac_ocp_write(tp, 0xF8BA, 0xBE00);
4779        r8168_mac_ocp_write(tp, 0xF8BC, 0xC602);
4780        r8168_mac_ocp_write(tp, 0xF8BE, 0xBE00);
4781        r8168_mac_ocp_write(tp, 0xF8C0, 0x0C4C);
4782        r8168_mac_ocp_write(tp, 0xF8C2, 0x0C28);
4783        r8168_mac_ocp_write(tp, 0xF8C4, 0x0C2C);
4784        r8168_mac_ocp_write(tp, 0xF8C6, 0xDC00);
4785        r8168_mac_ocp_write(tp, 0xF8C8, 0xC707);
4786        r8168_mac_ocp_write(tp, 0xF8CA, 0x1D00);
4787        r8168_mac_ocp_write(tp, 0xF8CC, 0x8DE2);
4788        r8168_mac_ocp_write(tp, 0xF8CE, 0x48C1);
4789        r8168_mac_ocp_write(tp, 0xF8D0, 0xC502);
4790        r8168_mac_ocp_write(tp, 0xF8D2, 0xBD00);
4791        r8168_mac_ocp_write(tp, 0xF8D4, 0x00AA);
4792        r8168_mac_ocp_write(tp, 0xF8D6, 0xE0C0);
4793        r8168_mac_ocp_write(tp, 0xF8D8, 0xC502);
4794        r8168_mac_ocp_write(tp, 0xF8DA, 0xBD00);
4795        r8168_mac_ocp_write(tp, 0xF8DC, 0x0132);
4796
4797        r8168_mac_ocp_write(tp, 0xFC26, 0x8000);
4798
4799        r8168_mac_ocp_write(tp, 0xFC2A, 0x0743);
4800        r8168_mac_ocp_write(tp, 0xFC2C, 0x0801);
4801        r8168_mac_ocp_write(tp, 0xFC2E, 0x0BE9);
4802        r8168_mac_ocp_write(tp, 0xFC30, 0x02FD);
4803        r8168_mac_ocp_write(tp, 0xFC32, 0x0C25);
4804        r8168_mac_ocp_write(tp, 0xFC34, 0x00A9);
4805        r8168_mac_ocp_write(tp, 0xFC36, 0x012D);
4806
4807        rtl_hw_aspm_clkreq_enable(tp, true);
4808}
4809
4810static void rtl_hw_start_8168h_1(struct rtl8169_private *tp)
4811{
4812        int rg_saw_cnt;
4813        u32 data;
4814        static const struct ephy_info e_info_8168h_1[] = {
4815                { 0x1e, 0x0800, 0x0001 },
4816                { 0x1d, 0x0000, 0x0800 },
4817                { 0x05, 0xffff, 0x2089 },
4818                { 0x06, 0xffff, 0x5881 },
4819                { 0x04, 0xffff, 0x154a },
4820                { 0x01, 0xffff, 0x068b }
4821        };
4822
4823        /* disable aspm and clock request before access ephy */
4824        rtl_hw_aspm_clkreq_enable(tp, false);
4825        rtl_ephy_init(tp, e_info_8168h_1);
4826
4827        rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
4828        rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
4829
4830        rtl_set_def_aspm_entry_latency(tp);
4831
4832        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4833
4834        rtl_reset_packet_filter(tp);
4835
4836        rtl_eri_set_bits(tp, 0xdc, ERIAR_MASK_1111, BIT(4));
4837
4838        rtl_eri_set_bits(tp, 0xd4, ERIAR_MASK_1111, 0x1f00);
4839
4840        rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
4841
4842        RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
4843
4844        rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
4845        rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
4846
4847        rtl8168_config_eee_mac(tp);
4848
4849        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
4850        RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
4851
4852        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
4853
4854        rtl_eri_clear_bits(tp, 0x1b0, ERIAR_MASK_0011, BIT(12));
4855
4856        rtl_pcie_state_l2l3_disable(tp);
4857
4858        rtl_writephy(tp, 0x1f, 0x0c42);
4859        rg_saw_cnt = (rtl_readphy(tp, 0x13) & 0x3fff);
4860        rtl_writephy(tp, 0x1f, 0x0000);
4861        if (rg_saw_cnt > 0) {
4862                u16 sw_cnt_1ms_ini;
4863
4864                sw_cnt_1ms_ini = 16000000/rg_saw_cnt;
4865                sw_cnt_1ms_ini &= 0x0fff;
4866                data = r8168_mac_ocp_read(tp, 0xd412);
4867                data &= ~0x0fff;
4868                data |= sw_cnt_1ms_ini;
4869                r8168_mac_ocp_write(tp, 0xd412, data);
4870        }
4871
4872        data = r8168_mac_ocp_read(tp, 0xe056);
4873        data &= ~0xf0;
4874        data |= 0x70;
4875        r8168_mac_ocp_write(tp, 0xe056, data);
4876
4877        data = r8168_mac_ocp_read(tp, 0xe052);
4878        data &= ~0x6000;
4879        data |= 0x8008;
4880        r8168_mac_ocp_write(tp, 0xe052, data);
4881
4882        data = r8168_mac_ocp_read(tp, 0xe0d6);
4883        data &= ~0x01ff;
4884        data |= 0x017f;
4885        r8168_mac_ocp_write(tp, 0xe0d6, data);
4886
4887        data = r8168_mac_ocp_read(tp, 0xd420);
4888        data &= ~0x0fff;
4889        data |= 0x047f;
4890        r8168_mac_ocp_write(tp, 0xd420, data);
4891
4892        r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
4893        r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
4894        r8168_mac_ocp_write(tp, 0xc094, 0x0000);
4895        r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
4896
4897        rtl_hw_aspm_clkreq_enable(tp, true);
4898}
4899
4900static void rtl_hw_start_8168ep(struct rtl8169_private *tp)
4901{
4902        rtl8168ep_stop_cmac(tp);
4903
4904        rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
4905        rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
4906
4907        rtl_set_def_aspm_entry_latency(tp);
4908
4909        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
4910
4911        rtl_reset_packet_filter(tp);
4912
4913        rtl_eri_set_bits(tp, 0xd4, ERIAR_MASK_1111, 0x1f80);
4914
4915        rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
4916
4917        RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
4918
4919        rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
4920        rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
4921
4922        rtl8168_config_eee_mac(tp);
4923
4924        rtl_w0w1_eri(tp, 0x2fc, ERIAR_MASK_0001, 0x01, 0x06);
4925
4926        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
4927
4928        rtl_pcie_state_l2l3_disable(tp);
4929}
4930
4931static void rtl_hw_start_8168ep_1(struct rtl8169_private *tp)
4932{
4933        static const struct ephy_info e_info_8168ep_1[] = {
4934                { 0x00, 0xffff, 0x10ab },
4935                { 0x06, 0xffff, 0xf030 },
4936                { 0x08, 0xffff, 0x2006 },
4937                { 0x0d, 0xffff, 0x1666 },
4938                { 0x0c, 0x3ff0, 0x0000 }
4939        };
4940
4941        /* disable aspm and clock request before access ephy */
4942        rtl_hw_aspm_clkreq_enable(tp, false);
4943        rtl_ephy_init(tp, e_info_8168ep_1);
4944
4945        rtl_hw_start_8168ep(tp);
4946
4947        rtl_hw_aspm_clkreq_enable(tp, true);
4948}
4949
4950static void rtl_hw_start_8168ep_2(struct rtl8169_private *tp)
4951{
4952        static const struct ephy_info e_info_8168ep_2[] = {
4953                { 0x00, 0xffff, 0x10a3 },
4954                { 0x19, 0xffff, 0xfc00 },
4955                { 0x1e, 0xffff, 0x20ea }
4956        };
4957
4958        /* disable aspm and clock request before access ephy */
4959        rtl_hw_aspm_clkreq_enable(tp, false);
4960        rtl_ephy_init(tp, e_info_8168ep_2);
4961
4962        rtl_hw_start_8168ep(tp);
4963
4964        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
4965        RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
4966
4967        rtl_hw_aspm_clkreq_enable(tp, true);
4968}
4969
4970static void rtl_hw_start_8168ep_3(struct rtl8169_private *tp)
4971{
4972        u32 data;
4973        static const struct ephy_info e_info_8168ep_3[] = {
4974                { 0x00, 0xffff, 0x10a3 },
4975                { 0x19, 0xffff, 0x7c00 },
4976                { 0x1e, 0xffff, 0x20eb },
4977                { 0x0d, 0xffff, 0x1666 }
4978        };
4979
4980        /* disable aspm and clock request before access ephy */
4981        rtl_hw_aspm_clkreq_enable(tp, false);
4982        rtl_ephy_init(tp, e_info_8168ep_3);
4983
4984        rtl_hw_start_8168ep(tp);
4985
4986        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
4987        RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
4988
4989        data = r8168_mac_ocp_read(tp, 0xd3e2);
4990        data &= 0xf000;
4991        data |= 0x0271;
4992        r8168_mac_ocp_write(tp, 0xd3e2, data);
4993
4994        data = r8168_mac_ocp_read(tp, 0xd3e4);
4995        data &= 0xff00;
4996        r8168_mac_ocp_write(tp, 0xd3e4, data);
4997
4998        data = r8168_mac_ocp_read(tp, 0xe860);
4999        data |= 0x0080;
5000        r8168_mac_ocp_write(tp, 0xe860, data);
5001
5002        rtl_hw_aspm_clkreq_enable(tp, true);
5003}
5004
5005static void rtl_hw_start_8102e_1(struct rtl8169_private *tp)
5006{
5007        static const struct ephy_info e_info_8102e_1[] = {
5008                { 0x01, 0, 0x6e65 },
5009                { 0x02, 0, 0x091f },
5010                { 0x03, 0, 0xc2f9 },
5011                { 0x06, 0, 0xafb5 },
5012                { 0x07, 0, 0x0e00 },
5013                { 0x19, 0, 0xec80 },
5014                { 0x01, 0, 0x2e65 },
5015                { 0x01, 0, 0x6e65 }
5016        };
5017        u8 cfg1;
5018
5019        rtl_set_def_aspm_entry_latency(tp);
5020
5021        RTL_W8(tp, DBG_REG, FIX_NAK_1);
5022
5023        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
5024
5025        RTL_W8(tp, Config1,
5026               LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
5027        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
5028
5029        cfg1 = RTL_R8(tp, Config1);
5030        if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
5031                RTL_W8(tp, Config1, cfg1 & ~LEDS0);
5032
5033        rtl_ephy_init(tp, e_info_8102e_1);
5034}
5035
5036static void rtl_hw_start_8102e_2(struct rtl8169_private *tp)
5037{
5038        rtl_set_def_aspm_entry_latency(tp);
5039
5040        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
5041
5042        RTL_W8(tp, Config1, MEMMAP | IOMAP | VPD | PMEnable);
5043        RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
5044}
5045
5046static void rtl_hw_start_8102e_3(struct rtl8169_private *tp)
5047{
5048        rtl_hw_start_8102e_2(tp);
5049
5050        rtl_ephy_write(tp, 0x03, 0xc2f9);
5051}
5052
5053static void rtl_hw_start_8105e_1(struct rtl8169_private *tp)
5054{
5055        static const struct ephy_info e_info_8105e_1[] = {
5056                { 0x07, 0, 0x4000 },
5057                { 0x19, 0, 0x0200 },
5058                { 0x19, 0, 0x0020 },
5059                { 0x1e, 0, 0x2000 },
5060                { 0x03, 0, 0x0001 },
5061                { 0x19, 0, 0x0100 },
5062                { 0x19, 0, 0x0004 },
5063                { 0x0a, 0, 0x0020 }
5064        };
5065
5066        /* Force LAN exit from ASPM if Rx/Tx are not idle */
5067        RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
5068
5069        /* Disable Early Tally Counter */
5070        RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) & ~0x010000);
5071
5072        RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
5073        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
5074
5075        rtl_ephy_init(tp, e_info_8105e_1);
5076
5077        rtl_pcie_state_l2l3_disable(tp);
5078}
5079
5080static void rtl_hw_start_8105e_2(struct rtl8169_private *tp)
5081{
5082        rtl_hw_start_8105e_1(tp);
5083        rtl_ephy_write(tp, 0x1e, rtl_ephy_read(tp, 0x1e) | 0x8000);
5084}
5085
5086static void rtl_hw_start_8402(struct rtl8169_private *tp)
5087{
5088        static const struct ephy_info e_info_8402[] = {
5089                { 0x19, 0xffff, 0xff64 },
5090                { 0x1e, 0, 0x4000 }
5091        };
5092
5093        rtl_set_def_aspm_entry_latency(tp);
5094
5095        /* Force LAN exit from ASPM if Rx/Tx are not idle */
5096        RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
5097
5098        RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
5099
5100        rtl_ephy_init(tp, e_info_8402);
5101
5102        rtl_tx_performance_tweak(tp, PCI_EXP_DEVCTL_READRQ_4096B);
5103
5104        rtl_set_fifo_size(tp, 0x00, 0x00, 0x02, 0x06);
5105        rtl_reset_packet_filter(tp);
5106        rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
5107        rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
5108        rtl_w0w1_eri(tp, 0x0d4, ERIAR_MASK_0011, 0x0e00, 0xff00);
5109
5110        rtl_pcie_state_l2l3_disable(tp);
5111}
5112
5113static void rtl_hw_start_8106(struct rtl8169_private *tp)
5114{
5115        rtl_hw_aspm_clkreq_enable(tp, false);
5116
5117        /* Force LAN exit from ASPM if Rx/Tx are not idle */
5118        RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
5119
5120        RTL_W32(tp, MISC, (RTL_R32(tp, MISC) | DISABLE_LAN_EN) & ~EARLY_TALLY_EN);
5121        RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
5122        RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
5123
5124        rtl_pcie_state_l2l3_disable(tp);
5125        rtl_hw_aspm_clkreq_enable(tp, true);
5126}
5127
5128static void rtl_hw_config(struct rtl8169_private *tp)
5129{
5130        static const rtl_generic_fct hw_configs[] = {
5131                [RTL_GIGA_MAC_VER_07] = rtl_hw_start_8102e_1,
5132                [RTL_GIGA_MAC_VER_08] = rtl_hw_start_8102e_3,
5133                [RTL_GIGA_MAC_VER_09] = rtl_hw_start_8102e_2,
5134                [RTL_GIGA_MAC_VER_10] = NULL,
5135                [RTL_GIGA_MAC_VER_11] = rtl_hw_start_8168bb,
5136                [RTL_GIGA_MAC_VER_12] = rtl_hw_start_8168bef,
5137                [RTL_GIGA_MAC_VER_13] = NULL,
5138                [RTL_GIGA_MAC_VER_14] = NULL,
5139                [RTL_GIGA_MAC_VER_15] = NULL,
5140                [RTL_GIGA_MAC_VER_16] = NULL,
5141                [RTL_GIGA_MAC_VER_17] = rtl_hw_start_8168bef,
5142                [RTL_GIGA_MAC_VER_18] = rtl_hw_start_8168cp_1,
5143                [RTL_GIGA_MAC_VER_19] = rtl_hw_start_8168c_1,
5144                [RTL_GIGA_MAC_VER_20] = rtl_hw_start_8168c_2,
5145                [RTL_GIGA_MAC_VER_21] = rtl_hw_start_8168c_3,
5146                [RTL_GIGA_MAC_VER_22] = rtl_hw_start_8168c_4,
5147                [RTL_GIGA_MAC_VER_23] = rtl_hw_start_8168cp_2,
5148                [RTL_GIGA_MAC_VER_24] = rtl_hw_start_8168cp_3,
5149                [RTL_GIGA_MAC_VER_25] = rtl_hw_start_8168d,
5150                [RTL_GIGA_MAC_VER_26] = rtl_hw_start_8168d,
5151                [RTL_GIGA_MAC_VER_27] = rtl_hw_start_8168d,
5152                [RTL_GIGA_MAC_VER_28] = rtl_hw_start_8168d_4,
5153                [RTL_GIGA_MAC_VER_29] = rtl_hw_start_8105e_1,
5154                [RTL_GIGA_MAC_VER_30] = rtl_hw_start_8105e_2,
5155                [RTL_GIGA_MAC_VER_31] = rtl_hw_start_8168dp,
5156                [RTL_GIGA_MAC_VER_32] = rtl_hw_start_8168e_1,
5157                [RTL_GIGA_MAC_VER_33] = rtl_hw_start_8168e_1,
5158                [RTL_GIGA_MAC_VER_34] = rtl_hw_start_8168e_2,
5159                [RTL_GIGA_MAC_VER_35] = rtl_hw_start_8168f_1,
5160                [RTL_GIGA_MAC_VER_36] = rtl_hw_start_8168f_1,
5161                [RTL_GIGA_MAC_VER_37] = rtl_hw_start_8402,
5162                [RTL_GIGA_MAC_VER_38] = rtl_hw_start_8411,
5163                [RTL_GIGA_MAC_VER_39] = rtl_hw_start_8106,
5164                [RTL_GIGA_MAC_VER_40] = rtl_hw_start_8168g_1,
5165                [RTL_GIGA_MAC_VER_41] = rtl_hw_start_8168g_1,
5166                [RTL_GIGA_MAC_VER_42] = rtl_hw_start_8168g_2,
5167                [RTL_GIGA_MAC_VER_43] = rtl_hw_start_8168g_2,
5168                [RTL_GIGA_MAC_VER_44] = rtl_hw_start_8411_2,
5169                [RTL_GIGA_MAC_VER_45] = rtl_hw_start_8168h_1,
5170                [RTL_GIGA_MAC_VER_46] = rtl_hw_start_8168h_1,
5171                [RTL_GIGA_MAC_VER_47] = rtl_hw_start_8168h_1,
5172                [RTL_GIGA_MAC_VER_48] = rtl_hw_start_8168h_1,
5173                [RTL_GIGA_MAC_VER_49] = rtl_hw_start_8168ep_1,
5174                [RTL_GIGA_MAC_VER_50] = rtl_hw_start_8168ep_2,
5175                [RTL_GIGA_MAC_VER_51] = rtl_hw_start_8168ep_3,
5176        };
5177
5178        if (hw_configs[tp->mac_version])
5179                hw_configs[tp->mac_version](tp);
5180}
5181
5182static void rtl_hw_start_8168(struct rtl8169_private *tp)
5183{
5184        if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
5185            tp->mac_version == RTL_GIGA_MAC_VER_16)
5186                pcie_capability_set_word(tp->pci_dev, PCI_EXP_DEVCTL,
5187                                         PCI_EXP_DEVCTL_NOSNOOP_EN);
5188
5189        if (rtl_is_8168evl_up(tp))
5190                RTL_W8(tp, MaxTxPacketSize, EarlySize);
5191        else
5192                RTL_W8(tp, MaxTxPacketSize, TxPacketMax);
5193
5194        rtl_hw_config(tp);
5195}
5196
5197static void rtl_hw_start_8169(struct rtl8169_private *tp)
5198{
5199        if (tp->mac_version == RTL_GIGA_MAC_VER_05)
5200                pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
5201
5202        RTL_W8(tp, EarlyTxThres, NoEarlyTx);
5203
5204        tp->cp_cmd |= PCIMulRW;
5205
5206        if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
5207            tp->mac_version == RTL_GIGA_MAC_VER_03) {
5208                netif_dbg(tp, drv, tp->dev,
5209                          "Set MAC Reg C+CR Offset 0xe0. Bit 3 and Bit 14 MUST be 1\n");
5210                tp->cp_cmd |= (1 << 14);
5211        }
5212
5213        RTL_W16(tp, CPlusCmd, tp->cp_cmd);
5214
5215        rtl8169_set_magic_reg(tp, tp->mac_version);
5216
5217        RTL_W32(tp, RxMissed, 0);
5218}
5219
5220static void rtl_hw_start(struct  rtl8169_private *tp)
5221{
5222        rtl_unlock_config_regs(tp);
5223
5224        tp->cp_cmd &= CPCMD_MASK;
5225        RTL_W16(tp, CPlusCmd, tp->cp_cmd);
5226
5227        if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
5228                rtl_hw_start_8169(tp);
5229        else
5230                rtl_hw_start_8168(tp);
5231
5232        rtl_set_rx_max_size(tp);
5233        rtl_set_rx_tx_desc_registers(tp);
5234        rtl_lock_config_regs(tp);
5235
5236        /* disable interrupt coalescing */
5237        RTL_W16(tp, IntrMitigate, 0x0000);
5238        /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
5239        RTL_R8(tp, IntrMask);
5240        RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
5241        rtl_init_rxcfg(tp);
5242        rtl_set_tx_config_registers(tp);
5243
5244        rtl_set_rx_mode(tp->dev);
5245        /* no early-rx interrupts */
5246        RTL_W16(tp, MultiIntr, RTL_R16(tp, MultiIntr) & 0xf000);
5247        rtl_irq_enable(tp);
5248}
5249
5250static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
5251{
5252        struct rtl8169_private *tp = netdev_priv(dev);
5253
5254        if (new_mtu > ETH_DATA_LEN)
5255                rtl_hw_jumbo_enable(tp);
5256        else
5257                rtl_hw_jumbo_disable(tp);
5258
5259        dev->mtu = new_mtu;
5260        netdev_update_features(dev);
5261
5262        return 0;
5263}
5264
5265static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
5266{
5267        desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
5268        desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
5269}
5270
5271static void rtl8169_free_rx_databuff(struct rtl8169_private *tp,
5272                                     void **data_buff, struct RxDesc *desc)
5273{
5274        dma_unmap_single(tp_to_dev(tp), le64_to_cpu(desc->addr),
5275                         R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
5276
5277        kfree(*data_buff);
5278        *data_buff = NULL;
5279        rtl8169_make_unusable_by_asic(desc);
5280}
5281
5282static inline void rtl8169_mark_to_asic(struct RxDesc *desc)
5283{
5284        u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
5285
5286        /* Force memory writes to complete before releasing descriptor */
5287        dma_wmb();
5288
5289        desc->opts1 = cpu_to_le32(DescOwn | eor | R8169_RX_BUF_SIZE);
5290}
5291
5292static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
5293                                             struct RxDesc *desc)
5294{
5295        void *data;
5296        dma_addr_t mapping;
5297        struct device *d = tp_to_dev(tp);
5298        int node = dev_to_node(d);
5299
5300        data = kmalloc_node(R8169_RX_BUF_SIZE, GFP_KERNEL, node);
5301        if (!data)
5302                return NULL;
5303
5304        /* Memory should be properly aligned, but better check. */
5305        if (!IS_ALIGNED((unsigned long)data, 8)) {
5306                netdev_err_once(tp->dev, "RX buffer not 8-byte-aligned\n");
5307                goto err_out;
5308        }
5309
5310        mapping = dma_map_single(d, data, R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
5311        if (unlikely(dma_mapping_error(d, mapping))) {
5312                if (net_ratelimit())
5313                        netif_err(tp, drv, tp->dev, "Failed to map RX DMA!\n");
5314                goto err_out;
5315        }
5316
5317        desc->addr = cpu_to_le64(mapping);
5318        rtl8169_mark_to_asic(desc);
5319        return data;
5320
5321err_out:
5322        kfree(data);
5323        return NULL;
5324}
5325
5326static void rtl8169_rx_clear(struct rtl8169_private *tp)
5327{
5328        unsigned int i;
5329
5330        for (i = 0; i < NUM_RX_DESC; i++) {
5331                if (tp->Rx_databuff[i]) {
5332                        rtl8169_free_rx_databuff(tp, tp->Rx_databuff + i,
5333                                            tp->RxDescArray + i);
5334                }
5335        }
5336}
5337
5338static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
5339{
5340        desc->opts1 |= cpu_to_le32(RingEnd);
5341}
5342
5343static int rtl8169_rx_fill(struct rtl8169_private *tp)
5344{
5345        unsigned int i;
5346
5347        for (i = 0; i < NUM_RX_DESC; i++) {
5348                void *data;
5349
5350                data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
5351                if (!data) {
5352                        rtl8169_make_unusable_by_asic(tp->RxDescArray + i);
5353                        goto err_out;
5354                }
5355                tp->Rx_databuff[i] = data;
5356        }
5357
5358        rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
5359        return 0;
5360
5361err_out:
5362        rtl8169_rx_clear(tp);
5363        return -ENOMEM;
5364}
5365
5366static int rtl8169_init_ring(struct rtl8169_private *tp)
5367{
5368        rtl8169_init_ring_indexes(tp);
5369
5370        memset(tp->tx_skb, 0, sizeof(tp->tx_skb));
5371        memset(tp->Rx_databuff, 0, sizeof(tp->Rx_databuff));
5372
5373        return rtl8169_rx_fill(tp);
5374}
5375
5376static void rtl8169_unmap_tx_skb(struct device *d, struct ring_info *tx_skb,
5377                                 struct TxDesc *desc)
5378{
5379        unsigned int len = tx_skb->len;
5380
5381        dma_unmap_single(d, le64_to_cpu(desc->addr), len, DMA_TO_DEVICE);
5382
5383        desc->opts1 = 0x00;
5384        desc->opts2 = 0x00;
5385        desc->addr = 0x00;
5386        tx_skb->len = 0;
5387}
5388
5389static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
5390                                   unsigned int n)
5391{
5392        unsigned int i;
5393
5394        for (i = 0; i < n; i++) {
5395                unsigned int entry = (start + i) % NUM_TX_DESC;
5396                struct ring_info *tx_skb = tp->tx_skb + entry;
5397                unsigned int len = tx_skb->len;
5398
5399                if (len) {
5400                        struct sk_buff *skb = tx_skb->skb;
5401
5402                        rtl8169_unmap_tx_skb(tp_to_dev(tp), tx_skb,
5403                                             tp->TxDescArray + entry);
5404                        if (skb) {
5405                                dev_consume_skb_any(skb);
5406                                tx_skb->skb = NULL;
5407                        }
5408                }
5409        }
5410}
5411
5412static void rtl8169_tx_clear(struct rtl8169_private *tp)
5413{
5414        rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
5415        tp->cur_tx = tp->dirty_tx = 0;
5416        netdev_reset_queue(tp->dev);
5417}
5418
5419static void rtl_reset_work(struct rtl8169_private *tp)
5420{
5421        struct net_device *dev = tp->dev;
5422        int i;
5423
5424        napi_disable(&tp->napi);
5425        netif_stop_queue(dev);
5426        synchronize_rcu();
5427
5428        rtl8169_hw_reset(tp);
5429
5430        for (i = 0; i < NUM_RX_DESC; i++)
5431                rtl8169_mark_to_asic(tp->RxDescArray + i);
5432
5433        rtl8169_tx_clear(tp);
5434        rtl8169_init_ring_indexes(tp);
5435
5436        napi_enable(&tp->napi);
5437        rtl_hw_start(tp);
5438        netif_wake_queue(dev);
5439}
5440
5441static void rtl8169_tx_timeout(struct net_device *dev)
5442{
5443        struct rtl8169_private *tp = netdev_priv(dev);
5444
5445        rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
5446}
5447
5448static __le32 rtl8169_get_txd_opts1(u32 opts0, u32 len, unsigned int entry)
5449{
5450        u32 status = opts0 | len;
5451
5452        if (entry == NUM_TX_DESC - 1)
5453                status |= RingEnd;
5454
5455        return cpu_to_le32(status);
5456}
5457
5458static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
5459                              u32 *opts)
5460{
5461        struct skb_shared_info *info = skb_shinfo(skb);
5462        unsigned int cur_frag, entry;
5463        struct TxDesc *uninitialized_var(txd);
5464        struct device *d = tp_to_dev(tp);
5465
5466        entry = tp->cur_tx;
5467        for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
5468                const skb_frag_t *frag = info->frags + cur_frag;
5469                dma_addr_t mapping;
5470                u32 len;
5471                void *addr;
5472
5473                entry = (entry + 1) % NUM_TX_DESC;
5474
5475                txd = tp->TxDescArray + entry;
5476                len = skb_frag_size(frag);
5477                addr = skb_frag_address(frag);
5478                mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
5479                if (unlikely(dma_mapping_error(d, mapping))) {
5480                        if (net_ratelimit())
5481                                netif_err(tp, drv, tp->dev,
5482                                          "Failed to map TX fragments DMA!\n");
5483                        goto err_out;
5484                }
5485
5486                txd->opts1 = rtl8169_get_txd_opts1(opts[0], len, entry);
5487                txd->opts2 = cpu_to_le32(opts[1]);
5488                txd->addr = cpu_to_le64(mapping);
5489
5490                tp->tx_skb[entry].len = len;
5491        }
5492
5493        if (cur_frag) {
5494                tp->tx_skb[entry].skb = skb;
5495                txd->opts1 |= cpu_to_le32(LastFrag);
5496        }
5497
5498        return cur_frag;
5499
5500err_out:
5501        rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
5502        return -EIO;
5503}
5504
5505static bool rtl_test_hw_pad_bug(struct rtl8169_private *tp, struct sk_buff *skb)
5506{
5507        return skb->len < ETH_ZLEN && tp->mac_version == RTL_GIGA_MAC_VER_34;
5508}
5509
5510static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
5511                                      struct net_device *dev);
5512/* r8169_csum_workaround()
5513 * The hw limites the value the transport offset. When the offset is out of the
5514 * range, calculate the checksum by sw.
5515 */
5516static void r8169_csum_workaround(struct rtl8169_private *tp,
5517                                  struct sk_buff *skb)
5518{
5519        if (skb_is_gso(skb)) {
5520                netdev_features_t features = tp->dev->features;
5521                struct sk_buff *segs, *nskb;
5522
5523                features &= ~(NETIF_F_SG | NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
5524                segs = skb_gso_segment(skb, features);
5525                if (IS_ERR(segs) || !segs)
5526                        goto drop;
5527
5528                do {
5529                        nskb = segs;
5530                        segs = segs->next;
5531                        nskb->next = NULL;
5532                        rtl8169_start_xmit(nskb, tp->dev);
5533                } while (segs);
5534
5535                dev_consume_skb_any(skb);
5536        } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
5537                if (skb_checksum_help(skb) < 0)
5538                        goto drop;
5539
5540                rtl8169_start_xmit(skb, tp->dev);
5541        } else {
5542drop:
5543                tp->dev->stats.tx_dropped++;
5544                dev_kfree_skb_any(skb);
5545        }
5546}
5547
5548/* msdn_giant_send_check()
5549 * According to the document of microsoft, the TCP Pseudo Header excludes the
5550 * packet length for IPv6 TCP large packets.
5551 */
5552static int msdn_giant_send_check(struct sk_buff *skb)
5553{
5554        const struct ipv6hdr *ipv6h;
5555        struct tcphdr *th;
5556        int ret;
5557
5558        ret = skb_cow_head(skb, 0);
5559        if (ret)
5560                return ret;
5561
5562        ipv6h = ipv6_hdr(skb);
5563        th = tcp_hdr(skb);
5564
5565        th->check = 0;
5566        th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0);
5567
5568        return ret;
5569}
5570
5571static void rtl8169_tso_csum_v1(struct sk_buff *skb, u32 *opts)
5572{
5573        u32 mss = skb_shinfo(skb)->gso_size;
5574
5575        if (mss) {
5576                opts[0] |= TD_LSO;
5577                opts[0] |= min(mss, TD_MSS_MAX) << TD0_MSS_SHIFT;
5578        } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
5579                const struct iphdr *ip = ip_hdr(skb);
5580
5581                if (ip->protocol == IPPROTO_TCP)
5582                        opts[0] |= TD0_IP_CS | TD0_TCP_CS;
5583                else if (ip->protocol == IPPROTO_UDP)
5584                        opts[0] |= TD0_IP_CS | TD0_UDP_CS;
5585                else
5586                        WARN_ON_ONCE(1);
5587        }
5588}
5589
5590static bool rtl8169_tso_csum_v2(struct rtl8169_private *tp,
5591                                struct sk_buff *skb, u32 *opts)
5592{
5593        u32 transport_offset = (u32)skb_transport_offset(skb);
5594        u32 mss = skb_shinfo(skb)->gso_size;
5595
5596        if (mss) {
5597                if (transport_offset > GTTCPHO_MAX) {
5598                        netif_warn(tp, tx_err, tp->dev,
5599                                   "Invalid transport offset 0x%x for TSO\n",
5600                                   transport_offset);
5601                        return false;
5602                }
5603
5604                switch (vlan_get_protocol(skb)) {
5605                case htons(ETH_P_IP):
5606                        opts[0] |= TD1_GTSENV4;
5607                        break;
5608
5609                case htons(ETH_P_IPV6):
5610                        if (msdn_giant_send_check(skb))
5611                                return false;
5612
5613                        opts[0] |= TD1_GTSENV6;
5614                        break;
5615
5616                default:
5617                        WARN_ON_ONCE(1);
5618                        break;
5619                }
5620
5621                opts[0] |= transport_offset << GTTCPHO_SHIFT;
5622                opts[1] |= min(mss, TD_MSS_MAX) << TD1_MSS_SHIFT;
5623        } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
5624                u8 ip_protocol;
5625
5626                if (unlikely(rtl_test_hw_pad_bug(tp, skb)))
5627                        return !(skb_checksum_help(skb) || eth_skb_pad(skb));
5628
5629                if (transport_offset > TCPHO_MAX) {
5630                        netif_warn(tp, tx_err, tp->dev,
5631                                   "Invalid transport offset 0x%x\n",
5632                                   transport_offset);
5633                        return false;
5634                }
5635
5636                switch (vlan_get_protocol(skb)) {
5637                case htons(ETH_P_IP):
5638                        opts[1] |= TD1_IPv4_CS;
5639                        ip_protocol = ip_hdr(skb)->protocol;
5640                        break;
5641
5642                case htons(ETH_P_IPV6):
5643                        opts[1] |= TD1_IPv6_CS;
5644                        ip_protocol = ipv6_hdr(skb)->nexthdr;
5645                        break;
5646
5647                default:
5648                        ip_protocol = IPPROTO_RAW;
5649                        break;
5650                }
5651
5652                if (ip_protocol == IPPROTO_TCP)
5653                        opts[1] |= TD1_TCP_CS;
5654                else if (ip_protocol == IPPROTO_UDP)
5655                        opts[1] |= TD1_UDP_CS;
5656                else
5657                        WARN_ON_ONCE(1);
5658
5659                opts[1] |= transport_offset << TCPHO_SHIFT;
5660        } else {
5661                if (unlikely(rtl_test_hw_pad_bug(tp, skb)))
5662                        return !eth_skb_pad(skb);
5663        }
5664
5665        return true;
5666}
5667
5668static bool rtl_tx_slots_avail(struct rtl8169_private *tp,
5669                               unsigned int nr_frags)
5670{
5671        unsigned int slots_avail = tp->dirty_tx + NUM_TX_DESC - tp->cur_tx;
5672
5673        /* A skbuff with nr_frags needs nr_frags+1 entries in the tx queue */
5674        return slots_avail > nr_frags;
5675}
5676
5677/* Versions RTL8102e and from RTL8168c onwards support csum_v2 */
5678static bool rtl_chip_supports_csum_v2(struct rtl8169_private *tp)
5679{
5680        switch (tp->mac_version) {
5681        case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
5682        case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
5683                return false;
5684        default:
5685                return true;
5686        }
5687}
5688
5689static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
5690                                      struct net_device *dev)
5691{
5692        struct rtl8169_private *tp = netdev_priv(dev);
5693        unsigned int entry = tp->cur_tx % NUM_TX_DESC;
5694        struct TxDesc *txd = tp->TxDescArray + entry;
5695        struct device *d = tp_to_dev(tp);
5696        dma_addr_t mapping;
5697        u32 opts[2], len;
5698        int frags;
5699
5700        if (unlikely(!rtl_tx_slots_avail(tp, skb_shinfo(skb)->nr_frags))) {
5701                netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
5702                goto err_stop_0;
5703        }
5704
5705        if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
5706                goto err_stop_0;
5707
5708        opts[1] = rtl8169_tx_vlan_tag(skb);
5709        opts[0] = DescOwn;
5710
5711        if (rtl_chip_supports_csum_v2(tp)) {
5712                if (!rtl8169_tso_csum_v2(tp, skb, opts)) {
5713                        r8169_csum_workaround(tp, skb);
5714                        return NETDEV_TX_OK;
5715                }
5716        } else {
5717                rtl8169_tso_csum_v1(skb, opts);
5718        }
5719
5720        len = skb_headlen(skb);
5721        mapping = dma_map_single(d, skb->data, len, DMA_TO_DEVICE);
5722        if (unlikely(dma_mapping_error(d, mapping))) {
5723                if (net_ratelimit())
5724                        netif_err(tp, drv, dev, "Failed to map TX DMA!\n");
5725                goto err_dma_0;
5726        }
5727
5728        tp->tx_skb[entry].len = len;
5729        txd->addr = cpu_to_le64(mapping);
5730
5731        frags = rtl8169_xmit_frags(tp, skb, opts);
5732        if (frags < 0)
5733                goto err_dma_1;
5734        else if (frags)
5735                opts[0] |= FirstFrag;
5736        else {
5737                opts[0] |= FirstFrag | LastFrag;
5738                tp->tx_skb[entry].skb = skb;
5739        }
5740
5741        txd->opts2 = cpu_to_le32(opts[1]);
5742
5743        netdev_sent_queue(dev, skb->len);
5744
5745        skb_tx_timestamp(skb);
5746
5747        /* Force memory writes to complete before releasing descriptor */
5748        dma_wmb();
5749
5750        txd->opts1 = rtl8169_get_txd_opts1(opts[0], len, entry);
5751
5752        /* Force all memory writes to complete before notifying device */
5753        wmb();
5754
5755        tp->cur_tx += frags + 1;
5756
5757        RTL_W8(tp, TxPoll, NPQ);
5758
5759        if (!rtl_tx_slots_avail(tp, MAX_SKB_FRAGS)) {
5760                /* Avoid wrongly optimistic queue wake-up: rtl_tx thread must
5761                 * not miss a ring update when it notices a stopped queue.
5762                 */
5763                smp_wmb();
5764                netif_stop_queue(dev);
5765                /* Sync with rtl_tx:
5766                 * - publish queue status and cur_tx ring index (write barrier)
5767                 * - refresh dirty_tx ring index (read barrier).
5768                 * May the current thread have a pessimistic view of the ring
5769                 * status and forget to wake up queue, a racing rtl_tx thread
5770                 * can't.
5771                 */
5772                smp_mb();
5773                if (rtl_tx_slots_avail(tp, MAX_SKB_FRAGS))
5774                        netif_start_queue(dev);
5775        }
5776
5777        return NETDEV_TX_OK;
5778
5779err_dma_1:
5780        rtl8169_unmap_tx_skb(d, tp->tx_skb + entry, txd);
5781err_dma_0:
5782        dev_kfree_skb_any(skb);
5783        dev->stats.tx_dropped++;
5784        return NETDEV_TX_OK;
5785
5786err_stop_0:
5787        netif_stop_queue(dev);
5788        dev->stats.tx_dropped++;
5789        return NETDEV_TX_BUSY;
5790}
5791
5792static void rtl8169_pcierr_interrupt(struct net_device *dev)
5793{
5794        struct rtl8169_private *tp = netdev_priv(dev);
5795        struct pci_dev *pdev = tp->pci_dev;
5796        u16 pci_status, pci_cmd;
5797
5798        pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
5799        pci_read_config_word(pdev, PCI_STATUS, &pci_status);
5800
5801        netif_err(tp, intr, dev, "PCI error (cmd = 0x%04x, status = 0x%04x)\n",
5802                  pci_cmd, pci_status);
5803
5804        /*
5805         * The recovery sequence below admits a very elaborated explanation:
5806         * - it seems to work;
5807         * - I did not see what else could be done;
5808         * - it makes iop3xx happy.
5809         *
5810         * Feel free to adjust to your needs.
5811         */
5812        if (pdev->broken_parity_status)
5813                pci_cmd &= ~PCI_COMMAND_PARITY;
5814        else
5815                pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
5816
5817        pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
5818
5819        pci_write_config_word(pdev, PCI_STATUS,
5820                pci_status & (PCI_STATUS_DETECTED_PARITY |
5821                PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
5822                PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
5823
5824        rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
5825}
5826
5827static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
5828                   int budget)
5829{
5830        unsigned int dirty_tx, tx_left, bytes_compl = 0, pkts_compl = 0;
5831
5832        dirty_tx = tp->dirty_tx;
5833        smp_rmb();
5834        tx_left = tp->cur_tx - dirty_tx;
5835
5836        while (tx_left > 0) {
5837                unsigned int entry = dirty_tx % NUM_TX_DESC;
5838                struct ring_info *tx_skb = tp->tx_skb + entry;
5839                u32 status;
5840
5841                status = le32_to_cpu(tp->TxDescArray[entry].opts1);
5842                if (status & DescOwn)
5843                        break;
5844
5845                /* This barrier is needed to keep us from reading
5846                 * any other fields out of the Tx descriptor until
5847                 * we know the status of DescOwn
5848                 */
5849                dma_rmb();
5850
5851                rtl8169_unmap_tx_skb(tp_to_dev(tp), tx_skb,
5852                                     tp->TxDescArray + entry);
5853                if (status & LastFrag) {
5854                        pkts_compl++;
5855                        bytes_compl += tx_skb->skb->len;
5856                        napi_consume_skb(tx_skb->skb, budget);
5857                        tx_skb->skb = NULL;
5858                }
5859                dirty_tx++;
5860                tx_left--;
5861        }
5862
5863        if (tp->dirty_tx != dirty_tx) {
5864                netdev_completed_queue(dev, pkts_compl, bytes_compl);
5865
5866                u64_stats_update_begin(&tp->tx_stats.syncp);
5867                tp->tx_stats.packets += pkts_compl;
5868                tp->tx_stats.bytes += bytes_compl;
5869                u64_stats_update_end(&tp->tx_stats.syncp);
5870
5871                tp->dirty_tx = dirty_tx;
5872                /* Sync with rtl8169_start_xmit:
5873                 * - publish dirty_tx ring index (write barrier)
5874                 * - refresh cur_tx ring index and queue status (read barrier)
5875                 * May the current thread miss the stopped queue condition,
5876                 * a racing xmit thread can only have a right view of the
5877                 * ring status.
5878                 */
5879                smp_mb();
5880                if (netif_queue_stopped(dev) &&
5881                    rtl_tx_slots_avail(tp, MAX_SKB_FRAGS)) {
5882                        netif_wake_queue(dev);
5883                }
5884                /*
5885                 * 8168 hack: TxPoll requests are lost when the Tx packets are
5886                 * too close. Let's kick an extra TxPoll request when a burst
5887                 * of start_xmit activity is detected (if it is not detected,
5888                 * it is slow enough). -- FR
5889                 */
5890                if (tp->cur_tx != dirty_tx)
5891                        RTL_W8(tp, TxPoll, NPQ);
5892        }
5893}
5894
5895static inline int rtl8169_fragmented_frame(u32 status)
5896{
5897        return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
5898}
5899
5900static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
5901{
5902        u32 status = opts1 & RxProtoMask;
5903
5904        if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
5905            ((status == RxProtoUDP) && !(opts1 & UDPFail)))
5906                skb->ip_summed = CHECKSUM_UNNECESSARY;
5907        else
5908                skb_checksum_none_assert(skb);
5909}
5910
5911static struct sk_buff *rtl8169_try_rx_copy(void *data,
5912                                           struct rtl8169_private *tp,
5913                                           int pkt_size,
5914                                           dma_addr_t addr)
5915{
5916        struct sk_buff *skb;
5917        struct device *d = tp_to_dev(tp);
5918
5919        dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
5920        prefetch(data);
5921        skb = napi_alloc_skb(&tp->napi, pkt_size);
5922        if (skb)
5923                skb_copy_to_linear_data(skb, data, pkt_size);
5924        dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
5925
5926        return skb;
5927}
5928
5929static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget)
5930{
5931        unsigned int cur_rx, rx_left;
5932        unsigned int count;
5933
5934        cur_rx = tp->cur_rx;
5935
5936        for (rx_left = min(budget, NUM_RX_DESC); rx_left > 0; rx_left--, cur_rx++) {
5937                unsigned int entry = cur_rx % NUM_RX_DESC;
5938                struct RxDesc *desc = tp->RxDescArray + entry;
5939                u32 status;
5940
5941                status = le32_to_cpu(desc->opts1);
5942                if (status & DescOwn)
5943                        break;
5944
5945                /* This barrier is needed to keep us from reading
5946                 * any other fields out of the Rx descriptor until
5947                 * we know the status of DescOwn
5948                 */
5949                dma_rmb();
5950
5951                if (unlikely(status & RxRES)) {
5952                        netif_info(tp, rx_err, dev, "Rx ERROR. status = %08x\n",
5953                                   status);
5954                        dev->stats.rx_errors++;
5955                        if (status & (RxRWT | RxRUNT))
5956                                dev->stats.rx_length_errors++;
5957                        if (status & RxCRC)
5958                                dev->stats.rx_crc_errors++;
5959                        if (status & (RxRUNT | RxCRC) && !(status & RxRWT) &&
5960                            dev->features & NETIF_F_RXALL) {
5961                                goto process_pkt;
5962                        }
5963                } else {
5964                        struct sk_buff *skb;
5965                        dma_addr_t addr;
5966                        int pkt_size;
5967
5968process_pkt:
5969                        addr = le64_to_cpu(desc->addr);
5970                        if (likely(!(dev->features & NETIF_F_RXFCS)))
5971                                pkt_size = (status & 0x00003fff) - 4;
5972                        else
5973                                pkt_size = status & 0x00003fff;
5974
5975                        /*
5976                         * The driver does not support incoming fragmented
5977                         * frames. They are seen as a symptom of over-mtu
5978                         * sized frames.
5979                         */
5980                        if (unlikely(rtl8169_fragmented_frame(status))) {
5981                                dev->stats.rx_dropped++;
5982                                dev->stats.rx_length_errors++;
5983                                goto release_descriptor;
5984                        }
5985
5986                        skb = rtl8169_try_rx_copy(tp->Rx_databuff[entry],
5987                                                  tp, pkt_size, addr);
5988                        if (!skb) {
5989                                dev->stats.rx_dropped++;
5990                                goto release_descriptor;
5991                        }
5992
5993                        rtl8169_rx_csum(skb, status);
5994                        skb_put(skb, pkt_size);
5995                        skb->protocol = eth_type_trans(skb, dev);
5996
5997                        rtl8169_rx_vlan_tag(desc, skb);
5998
5999                        if (skb->pkt_type == PACKET_MULTICAST)
6000                                dev->stats.multicast++;
6001
6002                        napi_gro_receive(&tp->napi, skb);
6003
6004                        u64_stats_update_begin(&tp->rx_stats.syncp);
6005                        tp->rx_stats.packets++;
6006                        tp->rx_stats.bytes += pkt_size;
6007                        u64_stats_update_end(&tp->rx_stats.syncp);
6008                }
6009release_descriptor:
6010                desc->opts2 = 0;
6011                rtl8169_mark_to_asic(desc);
6012        }
6013
6014        count = cur_rx - tp->cur_rx;
6015        tp->cur_rx = cur_rx;
6016
6017        return count;
6018}
6019
6020static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
6021{
6022        struct rtl8169_private *tp = dev_instance;
6023        u16 status = RTL_R16(tp, IntrStatus);
6024
6025        if (!tp->irq_enabled || status == 0xffff || !(status & tp->irq_mask))
6026                return IRQ_NONE;
6027
6028        if (unlikely(status & SYSErr)) {
6029                rtl8169_pcierr_interrupt(tp->dev);
6030                goto out;
6031        }
6032
6033        if (status & LinkChg)
6034                phy_mac_interrupt(tp->phydev);
6035
6036        if (unlikely(status & RxFIFOOver &&
6037            tp->mac_version == RTL_GIGA_MAC_VER_11)) {
6038                netif_stop_queue(tp->dev);
6039                /* XXX - Hack alert. See rtl_task(). */
6040                set_bit(RTL_FLAG_TASK_RESET_PENDING, tp->wk.flags);
6041        }
6042
6043        rtl_irq_disable(tp);
6044        napi_schedule_irqoff(&tp->napi);
6045out:
6046        rtl_ack_events(tp, status);
6047
6048        return IRQ_HANDLED;
6049}
6050
6051static void rtl_task(struct work_struct *work)
6052{
6053        static const struct {
6054                int bitnr;
6055                void (*action)(struct rtl8169_private *);
6056        } rtl_work[] = {
6057                { RTL_FLAG_TASK_RESET_PENDING,  rtl_reset_work },
6058        };
6059        struct rtl8169_private *tp =
6060                container_of(work, struct rtl8169_private, wk.work);
6061        struct net_device *dev = tp->dev;
6062        int i;
6063
6064        rtl_lock_work(tp);
6065
6066        if (!netif_running(dev) ||
6067            !test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags))
6068                goto out_unlock;
6069
6070        for (i = 0; i < ARRAY_SIZE(rtl_work); i++) {
6071                bool pending;
6072
6073                pending = test_and_clear_bit(rtl_work[i].bitnr, tp->wk.flags);
6074                if (pending)
6075                        rtl_work[i].action(tp);
6076        }
6077
6078out_unlock:
6079        rtl_unlock_work(tp);
6080}
6081
6082static int rtl8169_poll(struct napi_struct *napi, int budget)
6083{
6084        struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
6085        struct net_device *dev = tp->dev;
6086        int work_done;
6087
6088        work_done = rtl_rx(dev, tp, (u32) budget);
6089
6090        rtl_tx(dev, tp, budget);
6091
6092        if (work_done < budget) {
6093                napi_complete_done(napi, work_done);
6094                rtl_irq_enable(tp);
6095        }
6096
6097        return work_done;
6098}
6099
6100static void rtl8169_rx_missed(struct net_device *dev)
6101{
6102        struct rtl8169_private *tp = netdev_priv(dev);
6103
6104        if (tp->mac_version > RTL_GIGA_MAC_VER_06)
6105                return;
6106
6107        dev->stats.rx_missed_errors += RTL_R32(tp, RxMissed) & 0xffffff;
6108        RTL_W32(tp, RxMissed, 0);
6109}
6110
6111static void r8169_phylink_handler(struct net_device *ndev)
6112{
6113        struct rtl8169_private *tp = netdev_priv(ndev);
6114
6115        if (netif_carrier_ok(ndev)) {
6116                rtl_link_chg_patch(tp);
6117                pm_request_resume(&tp->pci_dev->dev);
6118        } else {
6119                pm_runtime_idle(&tp->pci_dev->dev);
6120        }
6121
6122        if (net_ratelimit())
6123                phy_print_status(tp->phydev);
6124}
6125
6126static int r8169_phy_connect(struct rtl8169_private *tp)
6127{
6128        struct phy_device *phydev = tp->phydev;
6129        phy_interface_t phy_mode;
6130        int ret;
6131
6132        phy_mode = tp->supports_gmii ? PHY_INTERFACE_MODE_GMII :
6133                   PHY_INTERFACE_MODE_MII;
6134
6135        ret = phy_connect_direct(tp->dev, phydev, r8169_phylink_handler,
6136                                 phy_mode);
6137        if (ret)
6138                return ret;
6139
6140        if (!tp->supports_gmii)
6141                phy_set_max_speed(phydev, SPEED_100);
6142
6143        phy_support_asym_pause(phydev);
6144
6145        phy_attached_info(phydev);
6146
6147        return 0;
6148}
6149
6150static void rtl8169_down(struct net_device *dev)
6151{
6152        struct rtl8169_private *tp = netdev_priv(dev);
6153
6154        phy_stop(tp->phydev);
6155
6156        napi_disable(&tp->napi);
6157        netif_stop_queue(dev);
6158
6159        rtl8169_hw_reset(tp);
6160        /*
6161         * At this point device interrupts can not be enabled in any function,
6162         * as netif_running is not true (rtl8169_interrupt, rtl8169_reset_task)
6163         * and napi is disabled (rtl8169_poll).
6164         */
6165        rtl8169_rx_missed(dev);
6166
6167        /* Give a racing hard_start_xmit a few cycles to complete. */
6168        synchronize_rcu();
6169
6170        rtl8169_tx_clear(tp);
6171
6172        rtl8169_rx_clear(tp);
6173
6174        rtl_pll_power_down(tp);
6175}
6176
6177static int rtl8169_close(struct net_device *dev)
6178{
6179        struct rtl8169_private *tp = netdev_priv(dev);
6180        struct pci_dev *pdev = tp->pci_dev;
6181
6182        pm_runtime_get_sync(&pdev->dev);
6183
6184        /* Update counters before going down */
6185        rtl8169_update_counters(tp);
6186
6187        rtl_lock_work(tp);
6188        /* Clear all task flags */
6189        bitmap_zero(tp->wk.flags, RTL_FLAG_MAX);
6190
6191        rtl8169_down(dev);
6192        rtl_unlock_work(tp);
6193
6194        cancel_work_sync(&tp->wk.work);
6195
6196        phy_disconnect(tp->phydev);
6197
6198        pci_free_irq(pdev, 0, tp);
6199
6200        dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
6201                          tp->RxPhyAddr);
6202        dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
6203                          tp->TxPhyAddr);
6204        tp->TxDescArray = NULL;
6205        tp->RxDescArray = NULL;
6206
6207        pm_runtime_put_sync(&pdev->dev);
6208
6209        return 0;
6210}
6211
6212#ifdef CONFIG_NET_POLL_CONTROLLER
6213static void rtl8169_netpoll(struct net_device *dev)
6214{
6215        struct rtl8169_private *tp = netdev_priv(dev);
6216
6217        rtl8169_interrupt(pci_irq_vector(tp->pci_dev, 0), tp);
6218}
6219#endif
6220
6221static int rtl_open(struct net_device *dev)
6222{
6223        struct rtl8169_private *tp = netdev_priv(dev);
6224        struct pci_dev *pdev = tp->pci_dev;
6225        int retval = -ENOMEM;
6226
6227        pm_runtime_get_sync(&pdev->dev);
6228
6229        /*
6230         * Rx and Tx descriptors needs 256 bytes alignment.
6231         * dma_alloc_coherent provides more.
6232         */
6233        tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
6234                                             &tp->TxPhyAddr, GFP_KERNEL);
6235        if (!tp->TxDescArray)
6236                goto err_pm_runtime_put;
6237
6238        tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
6239                                             &tp->RxPhyAddr, GFP_KERNEL);
6240        if (!tp->RxDescArray)
6241                goto err_free_tx_0;
6242
6243        retval = rtl8169_init_ring(tp);
6244        if (retval < 0)
6245                goto err_free_rx_1;
6246
6247        rtl_request_firmware(tp);
6248
6249        retval = pci_request_irq(pdev, 0, rtl8169_interrupt, NULL, tp,
6250                                 dev->name);
6251        if (retval < 0)
6252                goto err_release_fw_2;
6253
6254        retval = r8169_phy_connect(tp);
6255        if (retval)
6256                goto err_free_irq;
6257
6258        rtl_lock_work(tp);
6259
6260        set_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags);
6261
6262        napi_enable(&tp->napi);
6263
6264        rtl8169_init_phy(dev, tp);
6265
6266        rtl_pll_power_up(tp);
6267
6268        rtl_hw_start(tp);
6269
6270        if (!rtl8169_init_counter_offsets(tp))
6271                netif_warn(tp, hw, dev, "counter reset/update failed\n");
6272
6273        phy_start(tp->phydev);
6274        netif_start_queue(dev);
6275
6276        rtl_unlock_work(tp);
6277
6278        pm_runtime_put_sync(&pdev->dev);
6279out:
6280        return retval;
6281
6282err_free_irq:
6283        pci_free_irq(pdev, 0, tp);
6284err_release_fw_2:
6285        rtl_release_firmware(tp);
6286        rtl8169_rx_clear(tp);
6287err_free_rx_1:
6288        dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
6289                          tp->RxPhyAddr);
6290        tp->RxDescArray = NULL;
6291err_free_tx_0:
6292        dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
6293                          tp->TxPhyAddr);
6294        tp->TxDescArray = NULL;
6295err_pm_runtime_put:
6296        pm_runtime_put_noidle(&pdev->dev);
6297        goto out;
6298}
6299
6300static void
6301rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
6302{
6303        struct rtl8169_private *tp = netdev_priv(dev);
6304        struct pci_dev *pdev = tp->pci_dev;
6305        struct rtl8169_counters *counters = tp->counters;
6306        unsigned int start;
6307
6308        pm_runtime_get_noresume(&pdev->dev);
6309
6310        if (netif_running(dev) && pm_runtime_active(&pdev->dev))
6311                rtl8169_rx_missed(dev);
6312
6313        do {
6314                start = u64_stats_fetch_begin_irq(&tp->rx_stats.syncp);
6315                stats->rx_packets = tp->rx_stats.packets;
6316                stats->rx_bytes = tp->rx_stats.bytes;
6317        } while (u64_stats_fetch_retry_irq(&tp->rx_stats.syncp, start));
6318
6319        do {
6320                start = u64_stats_fetch_begin_irq(&tp->tx_stats.syncp);
6321                stats->tx_packets = tp->tx_stats.packets;
6322                stats->tx_bytes = tp->tx_stats.bytes;
6323        } while (u64_stats_fetch_retry_irq(&tp->tx_stats.syncp, start));
6324
6325        stats->rx_dropped       = dev->stats.rx_dropped;
6326        stats->tx_dropped       = dev->stats.tx_dropped;
6327        stats->rx_length_errors = dev->stats.rx_length_errors;
6328        stats->rx_errors        = dev->stats.rx_errors;
6329        stats->rx_crc_errors    = dev->stats.rx_crc_errors;
6330        stats->rx_fifo_errors   = dev->stats.rx_fifo_errors;
6331        stats->rx_missed_errors = dev->stats.rx_missed_errors;
6332        stats->multicast        = dev->stats.multicast;
6333
6334        /*
6335         * Fetch additonal counter values missing in stats collected by driver
6336         * from tally counters.
6337         */
6338        if (pm_runtime_active(&pdev->dev))
6339                rtl8169_update_counters(tp);
6340
6341        /*
6342         * Subtract values fetched during initalization.
6343         * See rtl8169_init_counter_offsets for a description why we do that.
6344         */
6345        stats->tx_errors = le64_to_cpu(counters->tx_errors) -
6346                le64_to_cpu(tp->tc_offset.tx_errors);
6347        stats->collisions = le32_to_cpu(counters->tx_multi_collision) -
6348                le32_to_cpu(tp->tc_offset.tx_multi_collision);
6349        stats->tx_aborted_errors = le16_to_cpu(counters->tx_aborted) -
6350                le16_to_cpu(tp->tc_offset.tx_aborted);
6351
6352        pm_runtime_put_noidle(&pdev->dev);
6353}
6354
6355static void rtl8169_net_suspend(struct net_device *dev)
6356{
6357        struct rtl8169_private *tp = netdev_priv(dev);
6358
6359        if (!netif_running(dev))
6360                return;
6361
6362        phy_stop(tp->phydev);
6363        netif_device_detach(dev);
6364
6365        rtl_lock_work(tp);
6366        napi_disable(&tp->napi);
6367        /* Clear all task flags */
6368        bitmap_zero(tp->wk.flags, RTL_FLAG_MAX);
6369
6370        rtl_unlock_work(tp);
6371
6372        rtl_pll_power_down(tp);
6373}
6374
6375#ifdef CONFIG_PM
6376
6377static int rtl8169_suspend(struct device *device)
6378{
6379        struct net_device *dev = dev_get_drvdata(device);
6380        struct rtl8169_private *tp = netdev_priv(dev);
6381
6382        rtl8169_net_suspend(dev);
6383        clk_disable_unprepare(tp->clk);
6384
6385        return 0;
6386}
6387
6388static void __rtl8169_resume(struct net_device *dev)
6389{
6390        struct rtl8169_private *tp = netdev_priv(dev);
6391
6392        netif_device_attach(dev);
6393
6394        rtl_pll_power_up(tp);
6395        rtl8169_init_phy(dev, tp);
6396
6397        phy_start(tp->phydev);
6398
6399        rtl_lock_work(tp);
6400        napi_enable(&tp->napi);
6401        set_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags);
6402        rtl_reset_work(tp);
6403        rtl_unlock_work(tp);
6404}
6405
6406static int rtl8169_resume(struct device *device)
6407{
6408        struct net_device *dev = dev_get_drvdata(device);
6409        struct rtl8169_private *tp = netdev_priv(dev);
6410
6411        rtl_rar_set(tp, dev->dev_addr);
6412
6413        clk_prepare_enable(tp->clk);
6414
6415        if (netif_running(dev))
6416                __rtl8169_resume(dev);
6417
6418        return 0;
6419}
6420
6421static int rtl8169_runtime_suspend(struct device *device)
6422{
6423        struct net_device *dev = dev_get_drvdata(device);
6424        struct rtl8169_private *tp = netdev_priv(dev);
6425
6426        if (!tp->TxDescArray)
6427                return 0;
6428
6429        rtl_lock_work(tp);
6430        __rtl8169_set_wol(tp, WAKE_ANY);
6431        rtl_unlock_work(tp);
6432
6433        rtl8169_net_suspend(dev);
6434
6435        /* Update counters before going runtime suspend */
6436        rtl8169_rx_missed(dev);
6437        rtl8169_update_counters(tp);
6438
6439        return 0;
6440}
6441
6442static int rtl8169_runtime_resume(struct device *device)
6443{
6444        struct net_device *dev = dev_get_drvdata(device);
6445        struct rtl8169_private *tp = netdev_priv(dev);
6446
6447        rtl_rar_set(tp, dev->dev_addr);
6448
6449        if (!tp->TxDescArray)
6450                return 0;
6451
6452        rtl_lock_work(tp);
6453        __rtl8169_set_wol(tp, tp->saved_wolopts);
6454        rtl_unlock_work(tp);
6455
6456        __rtl8169_resume(dev);
6457
6458        return 0;
6459}
6460
6461static int rtl8169_runtime_idle(struct device *device)
6462{
6463        struct net_device *dev = dev_get_drvdata(device);
6464
6465        if (!netif_running(dev) || !netif_carrier_ok(dev))
6466                pm_schedule_suspend(device, 10000);
6467
6468        return -EBUSY;
6469}
6470
6471static const struct dev_pm_ops rtl8169_pm_ops = {
6472        .suspend                = rtl8169_suspend,
6473        .resume                 = rtl8169_resume,
6474        .freeze                 = rtl8169_suspend,
6475        .thaw                   = rtl8169_resume,
6476        .poweroff               = rtl8169_suspend,
6477        .restore                = rtl8169_resume,
6478        .runtime_suspend        = rtl8169_runtime_suspend,
6479        .runtime_resume         = rtl8169_runtime_resume,
6480        .runtime_idle           = rtl8169_runtime_idle,
6481};
6482
6483#define RTL8169_PM_OPS  (&rtl8169_pm_ops)
6484
6485#else /* !CONFIG_PM */
6486
6487#define RTL8169_PM_OPS  NULL
6488
6489#endif /* !CONFIG_PM */
6490
6491static void rtl_wol_shutdown_quirk(struct rtl8169_private *tp)
6492{
6493        /* WoL fails with 8168b when the receiver is disabled. */
6494        switch (tp->mac_version) {
6495        case RTL_GIGA_MAC_VER_11:
6496        case RTL_GIGA_MAC_VER_12:
6497        case RTL_GIGA_MAC_VER_17:
6498                pci_clear_master(tp->pci_dev);
6499
6500                RTL_W8(tp, ChipCmd, CmdRxEnb);
6501                /* PCI commit */
6502                RTL_R8(tp, ChipCmd);
6503                break;
6504        default:
6505                break;
6506        }
6507}
6508
6509static void rtl_shutdown(struct pci_dev *pdev)
6510{
6511        struct net_device *dev = pci_get_drvdata(pdev);
6512        struct rtl8169_private *tp = netdev_priv(dev);
6513
6514        rtl8169_net_suspend(dev);
6515
6516        /* Restore original MAC address */
6517        rtl_rar_set(tp, dev->perm_addr);
6518
6519        rtl8169_hw_reset(tp);
6520
6521        if (system_state == SYSTEM_POWER_OFF) {
6522                if (tp->saved_wolopts) {
6523                        rtl_wol_suspend_quirk(tp);
6524                        rtl_wol_shutdown_quirk(tp);
6525                }
6526
6527                pci_wake_from_d3(pdev, true);
6528                pci_set_power_state(pdev, PCI_D3hot);
6529        }
6530}
6531
6532static void rtl_remove_one(struct pci_dev *pdev)
6533{
6534        struct net_device *dev = pci_get_drvdata(pdev);
6535        struct rtl8169_private *tp = netdev_priv(dev);
6536
6537        if (r8168_check_dash(tp))
6538                rtl8168_driver_stop(tp);
6539
6540        netif_napi_del(&tp->napi);
6541
6542        unregister_netdev(dev);
6543        mdiobus_unregister(tp->phydev->mdio.bus);
6544
6545        rtl_release_firmware(tp);
6546
6547        if (pci_dev_run_wake(pdev))
6548                pm_runtime_get_noresume(&pdev->dev);
6549
6550        /* restore original MAC address */
6551        rtl_rar_set(tp, dev->perm_addr);
6552}
6553
6554static const struct net_device_ops rtl_netdev_ops = {
6555        .ndo_open               = rtl_open,
6556        .ndo_stop               = rtl8169_close,
6557        .ndo_get_stats64        = rtl8169_get_stats64,
6558        .ndo_start_xmit         = rtl8169_start_xmit,
6559        .ndo_tx_timeout         = rtl8169_tx_timeout,
6560        .ndo_validate_addr      = eth_validate_addr,
6561        .ndo_change_mtu         = rtl8169_change_mtu,
6562        .ndo_fix_features       = rtl8169_fix_features,
6563        .ndo_set_features       = rtl8169_set_features,
6564        .ndo_set_mac_address    = rtl_set_mac_address,
6565        .ndo_do_ioctl           = rtl8169_ioctl,
6566        .ndo_set_rx_mode        = rtl_set_rx_mode,
6567#ifdef CONFIG_NET_POLL_CONTROLLER
6568        .ndo_poll_controller    = rtl8169_netpoll,
6569#endif
6570
6571};
6572
6573static void rtl_set_irq_mask(struct rtl8169_private *tp)
6574{
6575        tp->irq_mask = RTL_EVENT_NAPI | LinkChg;
6576
6577        if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
6578                tp->irq_mask |= SYSErr | RxOverflow | RxFIFOOver;
6579        else if (tp->mac_version == RTL_GIGA_MAC_VER_11)
6580                /* special workaround needed */
6581                tp->irq_mask |= RxFIFOOver;
6582        else
6583                tp->irq_mask |= RxOverflow;
6584}
6585
6586static int rtl_alloc_irq(struct rtl8169_private *tp)
6587{
6588        unsigned int flags;
6589
6590        switch (tp->mac_version) {
6591        case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
6592                rtl_unlock_config_regs(tp);
6593                RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable);
6594                rtl_lock_config_regs(tp);
6595                /* fall through */
6596        case RTL_GIGA_MAC_VER_07 ... RTL_GIGA_MAC_VER_24:
6597                flags = PCI_IRQ_LEGACY;
6598                break;
6599        default:
6600                flags = PCI_IRQ_ALL_TYPES;
6601                break;
6602        }
6603
6604        return pci_alloc_irq_vectors(tp->pci_dev, 1, 1, flags);
6605}
6606
6607static void rtl_read_mac_address(struct rtl8169_private *tp,
6608                                 u8 mac_addr[ETH_ALEN])
6609{
6610        /* Get MAC address */
6611        if (rtl_is_8168evl_up(tp) && tp->mac_version != RTL_GIGA_MAC_VER_34) {
6612                u32 value = rtl_eri_read(tp, 0xe0);
6613
6614                mac_addr[0] = (value >>  0) & 0xff;
6615                mac_addr[1] = (value >>  8) & 0xff;
6616                mac_addr[2] = (value >> 16) & 0xff;
6617                mac_addr[3] = (value >> 24) & 0xff;
6618
6619                value = rtl_eri_read(tp, 0xe4);
6620                mac_addr[4] = (value >>  0) & 0xff;
6621                mac_addr[5] = (value >>  8) & 0xff;
6622        }
6623}
6624
6625DECLARE_RTL_COND(rtl_link_list_ready_cond)
6626{
6627        return RTL_R8(tp, MCU) & LINK_LIST_RDY;
6628}
6629
6630DECLARE_RTL_COND(rtl_rxtx_empty_cond)
6631{
6632        return (RTL_R8(tp, MCU) & RXTX_EMPTY) == RXTX_EMPTY;
6633}
6634
6635static int r8169_mdio_read_reg(struct mii_bus *mii_bus, int phyaddr, int phyreg)
6636{
6637        struct rtl8169_private *tp = mii_bus->priv;
6638
6639        if (phyaddr > 0)
6640                return -ENODEV;
6641
6642        return rtl_readphy(tp, phyreg);
6643}
6644
6645static int r8169_mdio_write_reg(struct mii_bus *mii_bus, int phyaddr,
6646                                int phyreg, u16 val)
6647{
6648        struct rtl8169_private *tp = mii_bus->priv;
6649
6650        if (phyaddr > 0)
6651                return -ENODEV;
6652
6653        rtl_writephy(tp, phyreg, val);
6654
6655        return 0;
6656}
6657
6658static int r8169_mdio_register(struct rtl8169_private *tp)
6659{
6660        struct pci_dev *pdev = tp->pci_dev;
6661        struct mii_bus *new_bus;
6662        int ret;
6663
6664        new_bus = devm_mdiobus_alloc(&pdev->dev);
6665        if (!new_bus)
6666                return -ENOMEM;
6667
6668        new_bus->name = "r8169";
6669        new_bus->priv = tp;
6670        new_bus->parent = &pdev->dev;
6671        new_bus->irq[0] = PHY_IGNORE_INTERRUPT;
6672        snprintf(new_bus->id, MII_BUS_ID_SIZE, "r8169-%x", pci_dev_id(pdev));
6673
6674        new_bus->read = r8169_mdio_read_reg;
6675        new_bus->write = r8169_mdio_write_reg;
6676
6677        ret = mdiobus_register(new_bus);
6678        if (ret)
6679                return ret;
6680
6681        tp->phydev = mdiobus_get_phy(new_bus, 0);
6682        if (!tp->phydev) {
6683                mdiobus_unregister(new_bus);
6684                return -ENODEV;
6685        }
6686
6687        /* PHY will be woken up in rtl_open() */
6688        phy_suspend(tp->phydev);
6689
6690        return 0;
6691}
6692
6693static void rtl_hw_init_8168g(struct rtl8169_private *tp)
6694{
6695        u32 data;
6696
6697        tp->ocp_base = OCP_STD_PHY_BASE;
6698
6699        RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN);
6700
6701        if (!rtl_udelay_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 42))
6702                return;
6703
6704        if (!rtl_udelay_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42))
6705                return;
6706
6707        RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
6708        msleep(1);
6709        RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
6710
6711        data = r8168_mac_ocp_read(tp, 0xe8de);
6712        data &= ~(1 << 14);
6713        r8168_mac_ocp_write(tp, 0xe8de, data);
6714
6715        if (!rtl_udelay_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42))
6716                return;
6717
6718        data = r8168_mac_ocp_read(tp, 0xe8de);
6719        data |= (1 << 15);
6720        r8168_mac_ocp_write(tp, 0xe8de, data);
6721
6722        rtl_udelay_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42);
6723}
6724
6725static void rtl_hw_initialize(struct rtl8169_private *tp)
6726{
6727        switch (tp->mac_version) {
6728        case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_51:
6729                rtl8168ep_stop_cmac(tp);
6730                /* fall through */
6731        case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_48:
6732                rtl_hw_init_8168g(tp);
6733                break;
6734        default:
6735                break;
6736        }
6737}
6738
6739static int rtl_jumbo_max(struct rtl8169_private *tp)
6740{
6741        /* Non-GBit versions don't support jumbo frames */
6742        if (!tp->supports_gmii)
6743                return JUMBO_1K;
6744
6745        switch (tp->mac_version) {
6746        /* RTL8169 */
6747        case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
6748                return JUMBO_7K;
6749        /* RTL8168b */
6750        case RTL_GIGA_MAC_VER_11:
6751        case RTL_GIGA_MAC_VER_12:
6752        case RTL_GIGA_MAC_VER_17:
6753                return JUMBO_4K;
6754        /* RTL8168c */
6755        case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
6756                return JUMBO_6K;
6757        default:
6758                return JUMBO_9K;
6759        }
6760}
6761
6762static void rtl_disable_clk(void *data)
6763{
6764        clk_disable_unprepare(data);
6765}
6766
6767static int rtl_get_ether_clk(struct rtl8169_private *tp)
6768{
6769        struct device *d = tp_to_dev(tp);
6770        struct clk *clk;
6771        int rc;
6772
6773        clk = devm_clk_get(d, "ether_clk");
6774        if (IS_ERR(clk)) {
6775                rc = PTR_ERR(clk);
6776                if (rc == -ENOENT)
6777                        /* clk-core allows NULL (for suspend / resume) */
6778                        rc = 0;
6779                else if (rc != -EPROBE_DEFER)
6780                        dev_err(d, "failed to get clk: %d\n", rc);
6781        } else {
6782                tp->clk = clk;
6783                rc = clk_prepare_enable(clk);
6784                if (rc)
6785                        dev_err(d, "failed to enable clk: %d\n", rc);
6786                else
6787                        rc = devm_add_action_or_reset(d, rtl_disable_clk, clk);
6788        }
6789
6790        return rc;
6791}
6792
6793static void rtl_init_mac_address(struct rtl8169_private *tp)
6794{
6795        struct net_device *dev = tp->dev;
6796        u8 *mac_addr = dev->dev_addr;
6797        int rc, i;
6798
6799        rc = eth_platform_get_mac_address(tp_to_dev(tp), mac_addr);
6800        if (!rc)
6801                goto done;
6802
6803        rtl_read_mac_address(tp, mac_addr);
6804        if (is_valid_ether_addr(mac_addr))
6805                goto done;
6806
6807        for (i = 0; i < ETH_ALEN; i++)
6808                mac_addr[i] = RTL_R8(tp, MAC0 + i);
6809        if (is_valid_ether_addr(mac_addr))
6810                goto done;
6811
6812        eth_hw_addr_random(dev);
6813        dev_warn(tp_to_dev(tp), "can't read MAC address, setting random one\n");
6814done:
6815        rtl_rar_set(tp, mac_addr);
6816}
6817
6818static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
6819{
6820        struct rtl8169_private *tp;
6821        struct net_device *dev;
6822        int chipset, region;
6823        int jumbo_max, rc;
6824
6825        dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp));
6826        if (!dev)
6827                return -ENOMEM;
6828
6829        SET_NETDEV_DEV(dev, &pdev->dev);
6830        dev->netdev_ops = &rtl_netdev_ops;
6831        tp = netdev_priv(dev);
6832        tp->dev = dev;
6833        tp->pci_dev = pdev;
6834        tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
6835        tp->supports_gmii = ent->driver_data == RTL_CFG_NO_GBIT ? 0 : 1;
6836
6837        /* Get the *optional* external "ether_clk" used on some boards */
6838        rc = rtl_get_ether_clk(tp);
6839        if (rc)
6840                return rc;
6841
6842        /* Disable ASPM completely as that cause random device stop working
6843         * problems as well as full system hangs for some PCIe devices users.
6844         */
6845        rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
6846                                          PCIE_LINK_STATE_L1);
6847        tp->aspm_manageable = !rc;
6848
6849        /* enable device (incl. PCI PM wakeup and hotplug setup) */
6850        rc = pcim_enable_device(pdev);
6851        if (rc < 0) {
6852                dev_err(&pdev->dev, "enable failure\n");
6853                return rc;
6854        }
6855
6856        if (pcim_set_mwi(pdev) < 0)
6857                dev_info(&pdev->dev, "Mem-Wr-Inval unavailable\n");
6858
6859        /* use first MMIO region */
6860        region = ffs(pci_select_bars(pdev, IORESOURCE_MEM)) - 1;
6861        if (region < 0) {
6862                dev_err(&pdev->dev, "no MMIO resource found\n");
6863                return -ENODEV;
6864        }
6865
6866        /* check for weird/broken PCI region reporting */
6867        if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
6868                dev_err(&pdev->dev, "Invalid PCI region size(s), aborting\n");
6869                return -ENODEV;
6870        }
6871
6872        rc = pcim_iomap_regions(pdev, BIT(region), MODULENAME);
6873        if (rc < 0) {
6874                dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
6875                return rc;
6876        }
6877
6878        tp->mmio_addr = pcim_iomap_table(pdev)[region];
6879
6880        /* Identify chip attached to board */
6881        rtl8169_get_mac_version(tp);
6882        if (tp->mac_version == RTL_GIGA_MAC_NONE)
6883                return -ENODEV;
6884
6885        tp->cp_cmd = RTL_R16(tp, CPlusCmd);
6886
6887        if (sizeof(dma_addr_t) > 4 && tp->mac_version >= RTL_GIGA_MAC_VER_18 &&
6888            !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)))
6889                dev->features |= NETIF_F_HIGHDMA;
6890
6891        rtl_init_rxcfg(tp);
6892
6893        rtl8169_irq_mask_and_ack(tp);
6894
6895        rtl_hw_initialize(tp);
6896
6897        rtl_hw_reset(tp);
6898
6899        pci_set_master(pdev);
6900
6901        chipset = tp->mac_version;
6902
6903        rc = rtl_alloc_irq(tp);
6904        if (rc < 0) {
6905                dev_err(&pdev->dev, "Can't allocate interrupt\n");
6906                return rc;
6907        }
6908
6909        mutex_init(&tp->wk.mutex);
6910        INIT_WORK(&tp->wk.work, rtl_task);
6911        u64_stats_init(&tp->rx_stats.syncp);
6912        u64_stats_init(&tp->tx_stats.syncp);
6913
6914        rtl_init_mac_address(tp);
6915
6916        dev->ethtool_ops = &rtl8169_ethtool_ops;
6917
6918        netif_napi_add(dev, &tp->napi, rtl8169_poll, NAPI_POLL_WEIGHT);
6919
6920        /* don't enable SG, IP_CSUM and TSO by default - it might not work
6921         * properly for all devices */
6922        dev->features |= NETIF_F_RXCSUM |
6923                NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
6924
6925        dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
6926                NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX |
6927                NETIF_F_HW_VLAN_CTAG_RX;
6928        dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
6929                NETIF_F_HIGHDMA;
6930        dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
6931
6932        tp->cp_cmd |= RxChkSum | RxVlan;
6933
6934        /*
6935         * Pretend we are using VLANs; This bypasses a nasty bug where
6936         * Interrupts stop flowing on high load on 8110SCd controllers.
6937         */
6938        if (tp->mac_version == RTL_GIGA_MAC_VER_05)
6939                /* Disallow toggling */
6940                dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
6941
6942        if (rtl_chip_supports_csum_v2(tp))
6943                dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
6944
6945        dev->hw_features |= NETIF_F_RXALL;
6946        dev->hw_features |= NETIF_F_RXFCS;
6947
6948        /* MTU range: 60 - hw-specific max */
6949        dev->min_mtu = ETH_ZLEN;
6950        jumbo_max = rtl_jumbo_max(tp);
6951        dev->max_mtu = jumbo_max;
6952
6953        rtl_set_irq_mask(tp);
6954
6955        tp->fw_name = rtl_chip_infos[chipset].fw_name;
6956
6957        tp->counters = dmam_alloc_coherent (&pdev->dev, sizeof(*tp->counters),
6958                                            &tp->counters_phys_addr,
6959                                            GFP_KERNEL);
6960        if (!tp->counters)
6961                return -ENOMEM;
6962
6963        pci_set_drvdata(pdev, dev);
6964
6965        rc = r8169_mdio_register(tp);
6966        if (rc)
6967                return rc;
6968
6969        /* chip gets powered up in rtl_open() */
6970        rtl_pll_power_down(tp);
6971
6972        rc = register_netdev(dev);
6973        if (rc)
6974                goto err_mdio_unregister;
6975
6976        netif_info(tp, probe, dev, "%s, %pM, XID %03x, IRQ %d\n",
6977                   rtl_chip_infos[chipset].name, dev->dev_addr,
6978                   (RTL_R32(tp, TxConfig) >> 20) & 0xfcf,
6979                   pci_irq_vector(pdev, 0));
6980
6981        if (jumbo_max > JUMBO_1K)
6982                netif_info(tp, probe, dev,
6983                           "jumbo features [frames: %d bytes, tx checksumming: %s]\n",
6984                           jumbo_max, tp->mac_version <= RTL_GIGA_MAC_VER_06 ?
6985                           "ok" : "ko");
6986
6987        if (r8168_check_dash(tp))
6988                rtl8168_driver_start(tp);
6989
6990        if (pci_dev_run_wake(pdev))
6991                pm_runtime_put_sync(&pdev->dev);
6992
6993        return 0;
6994
6995err_mdio_unregister:
6996        mdiobus_unregister(tp->phydev->mdio.bus);
6997        return rc;
6998}
6999
7000static struct pci_driver rtl8169_pci_driver = {
7001        .name           = MODULENAME,
7002        .id_table       = rtl8169_pci_tbl,
7003        .probe          = rtl_init_one,
7004        .remove         = rtl_remove_one,
7005        .shutdown       = rtl_shutdown,
7006        .driver.pm      = RTL8169_PM_OPS,
7007};
7008
7009module_pci_driver(rtl8169_pci_driver);
7010