drivers/net/ethernet/realtek/r8169_main.c

   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/pci.h>
  14 #include <linux/netdevice.h>
  15 #include <linux/etherdevice.h>
  16 #include <linux/clk.h>
  17 #include <linux/delay.h>
  18 #include <linux/ethtool.h>
  19 #include <linux/phy.h>
  20 #include <linux/if_vlan.h>
  21 #include <linux/in.h>
  22 #include <linux/io.h>
  23 #include <linux/ip.h>
  24 #include <linux/tcp.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/pm_runtime.h>
  28 #include <linux/bitfield.h>
  29 #include <linux/prefetch.h>
  30 #include <linux/ipv6.h>
  31 #include <net/ip6_checksum.h>
  32
  33 #include "r8169.h"
  34 #include "r8169_firmware.h"
  35
  36 #define MODULENAME "r8169"
  37
  38 #define FIRMWARE_8168D_1        "rtl_nic/rtl8168d-1.fw"
  39 #define FIRMWARE_8168D_2        "rtl_nic/rtl8168d-2.fw"
  40 #define FIRMWARE_8168E_1        "rtl_nic/rtl8168e-1.fw"
  41 #define FIRMWARE_8168E_2        "rtl_nic/rtl8168e-2.fw"
  42 #define FIRMWARE_8168E_3        "rtl_nic/rtl8168e-3.fw"
  43 #define FIRMWARE_8168F_1        "rtl_nic/rtl8168f-1.fw"
  44 #define FIRMWARE_8168F_2        "rtl_nic/rtl8168f-2.fw"
  45 #define FIRMWARE_8105E_1        "rtl_nic/rtl8105e-1.fw"
  46 #define FIRMWARE_8402_1         "rtl_nic/rtl8402-1.fw"
  47 #define FIRMWARE_8411_1         "rtl_nic/rtl8411-1.fw"
  48 #define FIRMWARE_8411_2         "rtl_nic/rtl8411-2.fw"
  49 #define FIRMWARE_8106E_1        "rtl_nic/rtl8106e-1.fw"
  50 #define FIRMWARE_8106E_2        "rtl_nic/rtl8106e-2.fw"
  51 #define FIRMWARE_8168G_2        "rtl_nic/rtl8168g-2.fw"
  52 #define FIRMWARE_8168G_3        "rtl_nic/rtl8168g-3.fw"
  53 #define FIRMWARE_8168H_1        "rtl_nic/rtl8168h-1.fw"
  54 #define FIRMWARE_8168H_2        "rtl_nic/rtl8168h-2.fw"
  55 #define FIRMWARE_8168FP_3       "rtl_nic/rtl8168fp-3.fw"
  56 #define FIRMWARE_8107E_1        "rtl_nic/rtl8107e-1.fw"
  57 #define FIRMWARE_8107E_2        "rtl_nic/rtl8107e-2.fw"
  58 #define FIRMWARE_8125A_3        "rtl_nic/rtl8125a-3.fw"
  59 #define FIRMWARE_8125B_2        "rtl_nic/rtl8125b-2.fw"
  60
  61 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
  62    The RTL chips use a 64 element hash table based on the Ethernet CRC. */
  63 #define MC_FILTER_LIMIT 32
  64
  65 #define TX_DMA_BURST    7       /* Maximum PCI burst, '7' is unlimited */
  66 #define InterFrameGap   0x03    /* 3 means InterFrameGap = the shortest one */
  67
  68 #define R8169_REGS_SIZE         256
  69 #define R8169_RX_BUF_SIZE       (SZ_16K - 1)
  70 #define NUM_TX_DESC     256     /* Number of Tx descriptor registers */
  71 #define NUM_RX_DESC     256     /* Number of Rx descriptor registers */
  72 #define R8169_TX_RING_BYTES     (NUM_TX_DESC * sizeof(struct TxDesc))
  73 #define R8169_RX_RING_BYTES     (NUM_RX_DESC * sizeof(struct RxDesc))
  74
  75 #define OCP_STD_PHY_BASE        0xa400
  76
  77 #define RTL_CFG_NO_GBIT 1
  78
  79 /* write/read MMIO register */
  80 #define RTL_W8(tp, reg, val8)   writeb((val8), tp->mmio_addr + (reg))
  81 #define RTL_W16(tp, reg, val16) writew((val16), tp->mmio_addr + (reg))
  82 #define RTL_W32(tp, reg, val32) writel((val32), tp->mmio_addr + (reg))
  83 #define RTL_R8(tp, reg)         readb(tp->mmio_addr + (reg))
  84 #define RTL_R16(tp, reg)                readw(tp->mmio_addr + (reg))
  85 #define RTL_R32(tp, reg)                readl(tp->mmio_addr + (reg))
  86
  87 #define JUMBO_4K        (4 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
  88 #define JUMBO_6K        (6 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
  89 #define JUMBO_7K        (7 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
  90 #define JUMBO_9K        (9 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
  91
  92 static const struct {
  93         const char *name;
  94         const char *fw_name;
  95 } rtl_chip_infos[] = {
  96         /* PCI devices. */
  97         [RTL_GIGA_MAC_VER_02] = {"RTL8169s"                             },
  98         [RTL_GIGA_MAC_VER_03] = {"RTL8110s"                             },
  99         [RTL_GIGA_MAC_VER_04] = {"RTL8169sb/8110sb"                     },
 100         [RTL_GIGA_MAC_VER_05] = {"RTL8169sc/8110sc"                     },
 101         [RTL_GIGA_MAC_VER_06] = {"RTL8169sc/8110sc"                     },
 102         /* PCI-E devices. */
 103         [RTL_GIGA_MAC_VER_07] = {"RTL8102e"                             },
 104         [RTL_GIGA_MAC_VER_08] = {"RTL8102e"                             },
 105         [RTL_GIGA_MAC_VER_09] = {"RTL8102e/RTL8103e"                    },
 106         [RTL_GIGA_MAC_VER_10] = {"RTL8101e"                             },
 107         [RTL_GIGA_MAC_VER_11] = {"RTL8168b/8111b"                       },
 108         [RTL_GIGA_MAC_VER_12] = {"RTL8168b/8111b"                       },
 109         [RTL_GIGA_MAC_VER_13] = {"RTL8101e/RTL8100e"                    },
 110         [RTL_GIGA_MAC_VER_14] = {"RTL8401"                              },
 111         [RTL_GIGA_MAC_VER_16] = {"RTL8101e"                             },
 112         [RTL_GIGA_MAC_VER_17] = {"RTL8168b/8111b"                       },
 113         [RTL_GIGA_MAC_VER_18] = {"RTL8168cp/8111cp"                     },
 114         [RTL_GIGA_MAC_VER_19] = {"RTL8168c/8111c"                       },
 115         [RTL_GIGA_MAC_VER_20] = {"RTL8168c/8111c"                       },
 116         [RTL_GIGA_MAC_VER_21] = {"RTL8168c/8111c"                       },
 117         [RTL_GIGA_MAC_VER_22] = {"RTL8168c/8111c"                       },
 118         [RTL_GIGA_MAC_VER_23] = {"RTL8168cp/8111cp"                     },
 119         [RTL_GIGA_MAC_VER_24] = {"RTL8168cp/8111cp"                     },
 120         [RTL_GIGA_MAC_VER_25] = {"RTL8168d/8111d",      FIRMWARE_8168D_1},
 121         [RTL_GIGA_MAC_VER_26] = {"RTL8168d/8111d",      FIRMWARE_8168D_2},
 122         [RTL_GIGA_MAC_VER_27] = {"RTL8168dp/8111dp"                     },
 123         [RTL_GIGA_MAC_VER_28] = {"RTL8168dp/8111dp"                     },
 124         [RTL_GIGA_MAC_VER_29] = {"RTL8105e",            FIRMWARE_8105E_1},
 125         [RTL_GIGA_MAC_VER_30] = {"RTL8105e",            FIRMWARE_8105E_1},
 126         [RTL_GIGA_MAC_VER_31] = {"RTL8168dp/8111dp"                     },
 127         [RTL_GIGA_MAC_VER_32] = {"RTL8168e/8111e",      FIRMWARE_8168E_1},
 128         [RTL_GIGA_MAC_VER_33] = {"RTL8168e/8111e",      FIRMWARE_8168E_2},
 129         [RTL_GIGA_MAC_VER_34] = {"RTL8168evl/8111evl",  FIRMWARE_8168E_3},
 130         [RTL_GIGA_MAC_VER_35] = {"RTL8168f/8111f",      FIRMWARE_8168F_1},
 131         [RTL_GIGA_MAC_VER_36] = {"RTL8168f/8111f",      FIRMWARE_8168F_2},
 132         [RTL_GIGA_MAC_VER_37] = {"RTL8402",             FIRMWARE_8402_1 },
 133         [RTL_GIGA_MAC_VER_38] = {"RTL8411",             FIRMWARE_8411_1 },
 134         [RTL_GIGA_MAC_VER_39] = {"RTL8106e",            FIRMWARE_8106E_1},
 135         [RTL_GIGA_MAC_VER_40] = {"RTL8168g/8111g",      FIRMWARE_8168G_2},
 136         [RTL_GIGA_MAC_VER_41] = {"RTL8168g/8111g"                       },
 137         [RTL_GIGA_MAC_VER_42] = {"RTL8168gu/8111gu",    FIRMWARE_8168G_3},
 138         [RTL_GIGA_MAC_VER_43] = {"RTL8106eus",          FIRMWARE_8106E_2},
 139         [RTL_GIGA_MAC_VER_44] = {"RTL8411b",            FIRMWARE_8411_2 },
 140         [RTL_GIGA_MAC_VER_45] = {"RTL8168h/8111h",      FIRMWARE_8168H_1},
 141         [RTL_GIGA_MAC_VER_46] = {"RTL8168h/8111h",      FIRMWARE_8168H_2},
 142         [RTL_GIGA_MAC_VER_47] = {"RTL8107e",            FIRMWARE_8107E_1},
 143         [RTL_GIGA_MAC_VER_48] = {"RTL8107e",            FIRMWARE_8107E_2},
 144         [RTL_GIGA_MAC_VER_49] = {"RTL8168ep/8111ep"                     },
 145         [RTL_GIGA_MAC_VER_50] = {"RTL8168ep/8111ep"                     },
 146         [RTL_GIGA_MAC_VER_51] = {"RTL8168ep/8111ep"                     },
 147         [RTL_GIGA_MAC_VER_52] = {"RTL8168fp/RTL8117",  FIRMWARE_8168FP_3},
 148         [RTL_GIGA_MAC_VER_60] = {"RTL8125A"                             },
 149         [RTL_GIGA_MAC_VER_61] = {"RTL8125A",            FIRMWARE_8125A_3},
 150         /* reserve 62 for CFG_METHOD_4 in the vendor driver */
 151         [RTL_GIGA_MAC_VER_63] = {"RTL8125B",            FIRMWARE_8125B_2},
 152 };
 153
 154 static const struct pci_device_id rtl8169_pci_tbl[] = {
 155         { PCI_VDEVICE(REALTEK,  0x2502) },
 156         { PCI_VDEVICE(REALTEK,  0x2600) },
 157         { PCI_VDEVICE(REALTEK,  0x8129) },
 158         { PCI_VDEVICE(REALTEK,  0x8136), RTL_CFG_NO_GBIT },
 159         { PCI_VDEVICE(REALTEK,  0x8161) },
 160         { PCI_VDEVICE(REALTEK,  0x8167) },
 161         { PCI_VDEVICE(REALTEK,  0x8168) },
 162         { PCI_VDEVICE(NCUBE,    0x8168) },
 163         { PCI_VDEVICE(REALTEK,  0x8169) },
 164         { PCI_VENDOR_ID_DLINK,  0x4300,
 165                 PCI_VENDOR_ID_DLINK, 0x4b10, 0, 0 },
 166         { PCI_VDEVICE(DLINK,    0x4300) },
 167         { PCI_VDEVICE(DLINK,    0x4302) },
 168         { PCI_VDEVICE(AT,       0xc107) },
 169         { PCI_VDEVICE(USR,      0x0116) },
 170         { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024 },
 171         { 0x0001, 0x8168, PCI_ANY_ID, 0x2410 },
 172         { PCI_VDEVICE(REALTEK,  0x8125) },
 173         { PCI_VDEVICE(REALTEK,  0x3000) },
 174         {}
 175 };
 176
 177 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
 178
 179 enum rtl_registers {
 180         MAC0            = 0,    /* Ethernet hardware address. */
 181         MAC4            = 4,
 182         MAR0            = 8,    /* Multicast filter. */
 183         CounterAddrLow          = 0x10,
 184         CounterAddrHigh         = 0x14,
 185         TxDescStartAddrLow      = 0x20,
 186         TxDescStartAddrHigh     = 0x24,
 187         TxHDescStartAddrLow     = 0x28,
 188         TxHDescStartAddrHigh    = 0x2c,
 189         FLASH           = 0x30,
 190         ERSR            = 0x36,
 191         ChipCmd         = 0x37,
 192         TxPoll          = 0x38,
 193         IntrMask        = 0x3c,
 194         IntrStatus      = 0x3e,
 195
 196         TxConfig        = 0x40,
 197 #define TXCFG_AUTO_FIFO                 (1 << 7)        /* 8111e-vl */
 198 #define TXCFG_EMPTY                     (1 << 11)       /* 8111e-vl */
 199
 200         RxConfig        = 0x44,
 201 #define RX128_INT_EN                    (1 << 15)       /* 8111c and later */
 202 #define RX_MULTI_EN                     (1 << 14)       /* 8111c only */
 203 #define RXCFG_FIFO_SHIFT                13
 204                                         /* No threshold before first PCI xfer */
 205 #define RX_FIFO_THRESH                  (7 << RXCFG_FIFO_SHIFT)
 206 #define RX_EARLY_OFF                    (1 << 11)
 207 #define RXCFG_DMA_SHIFT                 8
 208                                         /* Unlimited maximum PCI burst. */
 209 #define RX_DMA_BURST                    (7 << RXCFG_DMA_SHIFT)
 210
 211         Cfg9346         = 0x50,
 212         Config0         = 0x51,
 213         Config1         = 0x52,
 214         Config2         = 0x53,
 215 #define PME_SIGNAL                      (1 << 5)        /* 8168c and later */
 216
 217         Config3         = 0x54,
 218         Config4         = 0x55,
 219         Config5         = 0x56,
 220         PHYAR           = 0x60,
 221         PHYstatus       = 0x6c,
 222         RxMaxSize       = 0xda,
 223         CPlusCmd        = 0xe0,
 224         IntrMitigate    = 0xe2,
 225
 226 #define RTL_COALESCE_TX_USECS   GENMASK(15, 12)
 227 #define RTL_COALESCE_TX_FRAMES  GENMASK(11, 8)
 228 #define RTL_COALESCE_RX_USECS   GENMASK(7, 4)
 229 #define RTL_COALESCE_RX_FRAMES  GENMASK(3, 0)
 230
 231 #define RTL_COALESCE_T_MAX      0x0fU
 232 #define RTL_COALESCE_FRAME_MAX  (RTL_COALESCE_T_MAX * 4)
 233
 234         RxDescAddrLow   = 0xe4,
 235         RxDescAddrHigh  = 0xe8,
 236         EarlyTxThres    = 0xec, /* 8169. Unit of 32 bytes. */
 237
 238 #define NoEarlyTx       0x3f    /* Max value : no early transmit. */
 239
 240         MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
 241
 242 #define TxPacketMax     (8064 >> 7)
 243 #define EarlySize       0x27
 244
 245         FuncEvent       = 0xf0,
 246         FuncEventMask   = 0xf4,
 247         FuncPresetState = 0xf8,
 248         IBCR0           = 0xf8,
 249         IBCR2           = 0xf9,
 250         IBIMR0          = 0xfa,
 251         IBISR0          = 0xfb,
 252         FuncForceEvent  = 0xfc,
 253 };
 254
 255 enum rtl8168_8101_registers {
 256         CSIDR                   = 0x64,
 257         CSIAR                   = 0x68,
 258 #define CSIAR_FLAG                      0x80000000
 259 #define CSIAR_WRITE_CMD                 0x80000000
 260 #define CSIAR_BYTE_ENABLE               0x0000f000
 261 #define CSIAR_ADDR_MASK                 0x00000fff
 262         PMCH                    = 0x6f,
 263         EPHYAR                  = 0x80,
 264 #define EPHYAR_FLAG                     0x80000000
 265 #define EPHYAR_WRITE_CMD                0x80000000
 266 #define EPHYAR_REG_MASK                 0x1f
 267 #define EPHYAR_REG_SHIFT                16
 268 #define EPHYAR_DATA_MASK                0xffff
 269         DLLPR                   = 0xd0,
 270 #define PFM_EN                          (1 << 6)
 271 #define TX_10M_PS_EN                    (1 << 7)
 272         DBG_REG                 = 0xd1,
 273 #define FIX_NAK_1                       (1 << 4)
 274 #define FIX_NAK_2                       (1 << 3)
 275         TWSI                    = 0xd2,
 276         MCU                     = 0xd3,
 277 #define NOW_IS_OOB                      (1 << 7)
 278 #define TX_EMPTY                        (1 << 5)
 279 #define RX_EMPTY                        (1 << 4)
 280 #define RXTX_EMPTY                      (TX_EMPTY | RX_EMPTY)
 281 #define EN_NDP                          (1 << 3)
 282 #define EN_OOB_RESET                    (1 << 2)
 283 #define LINK_LIST_RDY                   (1 << 1)
 284         EFUSEAR                 = 0xdc,
 285 #define EFUSEAR_FLAG                    0x80000000
 286 #define EFUSEAR_WRITE_CMD               0x80000000
 287 #define EFUSEAR_READ_CMD                0x00000000
 288 #define EFUSEAR_REG_MASK                0x03ff
 289 #define EFUSEAR_REG_SHIFT               8
 290 #define EFUSEAR_DATA_MASK               0xff
 291         MISC_1                  = 0xf2,
 292 #define PFM_D3COLD_EN                   (1 << 6)
 293 };
 294
 295 enum rtl8168_registers {
 296         LED_FREQ                = 0x1a,
 297         EEE_LED                 = 0x1b,
 298         ERIDR                   = 0x70,
 299         ERIAR                   = 0x74,
 300 #define ERIAR_FLAG                      0x80000000
 301 #define ERIAR_WRITE_CMD                 0x80000000
 302 #define ERIAR_READ_CMD                  0x00000000
 303 #define ERIAR_ADDR_BYTE_ALIGN           4
 304 #define ERIAR_TYPE_SHIFT                16
 305 #define ERIAR_EXGMAC                    (0x00 << ERIAR_TYPE_SHIFT)
 306 #define ERIAR_MSIX                      (0x01 << ERIAR_TYPE_SHIFT)
 307 #define ERIAR_ASF                       (0x02 << ERIAR_TYPE_SHIFT)
 308 #define ERIAR_OOB                       (0x02 << ERIAR_TYPE_SHIFT)
 309 #define ERIAR_MASK_SHIFT                12
 310 #define ERIAR_MASK_0001                 (0x1 << ERIAR_MASK_SHIFT)
 311 #define ERIAR_MASK_0011                 (0x3 << ERIAR_MASK_SHIFT)
 312 #define ERIAR_MASK_0100                 (0x4 << ERIAR_MASK_SHIFT)
 313 #define ERIAR_MASK_0101                 (0x5 << ERIAR_MASK_SHIFT)
 314 #define ERIAR_MASK_1111                 (0xf << ERIAR_MASK_SHIFT)
 315         EPHY_RXER_NUM           = 0x7c,
 316         OCPDR                   = 0xb0, /* OCP GPHY access */
 317 #define OCPDR_WRITE_CMD                 0x80000000
 318 #define OCPDR_READ_CMD                  0x00000000
 319 #define OCPDR_REG_MASK                  0x7f
 320 #define OCPDR_GPHY_REG_SHIFT            16
 321 #define OCPDR_DATA_MASK                 0xffff
 322         OCPAR                   = 0xb4,
 323 #define OCPAR_FLAG                      0x80000000
 324 #define OCPAR_GPHY_WRITE_CMD            0x8000f060
 325 #define OCPAR_GPHY_READ_CMD             0x0000f060
 326         GPHY_OCP                = 0xb8,
 327         RDSAR1                  = 0xd0, /* 8168c only. Undocumented on 8168dp */
 328         MISC                    = 0xf0, /* 8168e only. */
 329 #define TXPLA_RST                       (1 << 29)
 330 #define DISABLE_LAN_EN                  (1 << 23) /* Enable GPIO pin */
 331 #define PWM_EN                          (1 << 22)
 332 #define RXDV_GATED_EN                   (1 << 19)
 333 #define EARLY_TALLY_EN                  (1 << 16)
 334 };
 335
 336 enum rtl8125_registers {
 337         IntrMask_8125           = 0x38,
 338         IntrStatus_8125         = 0x3c,
 339         TxPoll_8125             = 0x90,
 340         MAC0_BKP                = 0x19e0,
 341         EEE_TXIDLE_TIMER_8125   = 0x6048,
 342 };
 343
 344 #define RX_VLAN_INNER_8125      BIT(22)
 345 #define RX_VLAN_OUTER_8125      BIT(23)
 346 #define RX_VLAN_8125            (RX_VLAN_INNER_8125 | RX_VLAN_OUTER_8125)
 347
 348 #define RX_FETCH_DFLT_8125      (8 << 27)
 349
 350 enum rtl_register_content {
 351         /* InterruptStatusBits */
 352         SYSErr          = 0x8000,
 353         PCSTimeout      = 0x4000,
 354         SWInt           = 0x0100,
 355         TxDescUnavail   = 0x0080,
 356         RxFIFOOver      = 0x0040,
 357         LinkChg         = 0x0020,
 358         RxOverflow      = 0x0010,
 359         TxErr           = 0x0008,
 360         TxOK            = 0x0004,
 361         RxErr           = 0x0002,
 362         RxOK            = 0x0001,
 363
 364         /* RxStatusDesc */
 365         RxRWT   = (1 << 22),
 366         RxRES   = (1 << 21),
 367         RxRUNT  = (1 << 20),
 368         RxCRC   = (1 << 19),
 369
 370         /* ChipCmdBits */
 371         StopReq         = 0x80,
 372         CmdReset        = 0x10,
 373         CmdRxEnb        = 0x08,
 374         CmdTxEnb        = 0x04,
 375         RxBufEmpty      = 0x01,
 376
 377         /* TXPoll register p.5 */
 378         HPQ             = 0x80,         /* Poll cmd on the high prio queue */
 379         NPQ             = 0x40,         /* Poll cmd on the low prio queue */
 380         FSWInt          = 0x01,         /* Forced software interrupt */
 381
 382         /* Cfg9346Bits */
 383         Cfg9346_Lock    = 0x00,
 384         Cfg9346_Unlock  = 0xc0,
 385
 386         /* rx_mode_bits */
 387         AcceptErr       = 0x20,
 388         AcceptRunt      = 0x10,
 389 #define RX_CONFIG_ACCEPT_ERR_MASK       0x30
 390         AcceptBroadcast = 0x08,
 391         AcceptMulticast = 0x04,
 392         AcceptMyPhys    = 0x02,
 393         AcceptAllPhys   = 0x01,
 394 #define RX_CONFIG_ACCEPT_OK_MASK        0x0f
 395 #define RX_CONFIG_ACCEPT_MASK           0x3f
 396
 397         /* TxConfigBits */
 398         TxInterFrameGapShift = 24,
 399         TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
 400
 401         /* Config1 register p.24 */
 402         LEDS1           = (1 << 7),
 403         LEDS0           = (1 << 6),
 404         Speed_down      = (1 << 4),
 405         MEMMAP          = (1 << 3),
 406         IOMAP           = (1 << 2),
 407         VPD             = (1 << 1),
 408         PMEnable        = (1 << 0),     /* Power Management Enable */
 409
 410         /* Config2 register p. 25 */
 411         ClkReqEn        = (1 << 7),     /* Clock Request Enable */
 412         MSIEnable       = (1 << 5),     /* 8169 only. Reserved in the 8168. */
 413         PCI_Clock_66MHz = 0x01,
 414         PCI_Clock_33MHz = 0x00,
 415
 416         /* Config3 register p.25 */
 417         MagicPacket     = (1 << 5),     /* Wake up when receives a Magic Packet */
 418         LinkUp          = (1 << 4),     /* Wake up when the cable connection is re-established */
 419         Jumbo_En0       = (1 << 2),     /* 8168 only. Reserved in the 8168b */
 420         Rdy_to_L23      = (1 << 1),     /* L23 Enable */
 421         Beacon_en       = (1 << 0),     /* 8168 only. Reserved in the 8168b */
 422
 423         /* Config4 register */
 424         Jumbo_En1       = (1 << 1),     /* 8168 only. Reserved in the 8168b */
 425
 426         /* Config5 register p.27 */
 427         BWF             = (1 << 6),     /* Accept Broadcast wakeup frame */
 428         MWF             = (1 << 5),     /* Accept Multicast wakeup frame */
 429         UWF             = (1 << 4),     /* Accept Unicast wakeup frame */
 430         Spi_en          = (1 << 3),
 431         LanWake         = (1 << 1),     /* LanWake enable/disable */
 432         PMEStatus       = (1 << 0),     /* PME status can be reset by PCI RST# */
 433         ASPM_en         = (1 << 0),     /* ASPM enable */
 434
 435         /* CPlusCmd p.31 */
 436         EnableBist      = (1 << 15),    // 8168 8101
 437         Mac_dbgo_oe     = (1 << 14),    // 8168 8101
 438         EnAnaPLL        = (1 << 14),    // 8169
 439         Normal_mode     = (1 << 13),    // unused
 440         Force_half_dup  = (1 << 12),    // 8168 8101
 441         Force_rxflow_en = (1 << 11),    // 8168 8101
 442         Force_txflow_en = (1 << 10),    // 8168 8101
 443         Cxpl_dbg_sel    = (1 << 9),     // 8168 8101
 444         ASF             = (1 << 8),     // 8168 8101
 445         PktCntrDisable  = (1 << 7),     // 8168 8101
 446         Mac_dbgo_sel    = 0x001c,       // 8168
 447         RxVlan          = (1 << 6),
 448         RxChkSum        = (1 << 5),
 449         PCIDAC          = (1 << 4),
 450         PCIMulRW        = (1 << 3),
 451 #define INTT_MASK       GENMASK(1, 0)
 452 #define CPCMD_MASK      (Normal_mode | RxVlan | RxChkSum | INTT_MASK)
 453
 454         /* rtl8169_PHYstatus */
 455         TBI_Enable      = 0x80,
 456         TxFlowCtrl      = 0x40,
 457         RxFlowCtrl      = 0x20,
 458         _1000bpsF       = 0x10,
 459         _100bps         = 0x08,
 460         _10bps          = 0x04,
 461         LinkStatus      = 0x02,
 462         FullDup         = 0x01,
 463
 464         /* ResetCounterCommand */
 465         CounterReset    = 0x1,
 466
 467         /* DumpCounterCommand */
 468         CounterDump     = 0x8,
 469
 470         /* magic enable v2 */
 471         MagicPacket_v2  = (1 << 16),    /* Wake up when receives a Magic Packet */
 472 };
 473
 474 enum rtl_desc_bit {
 475         /* First doubleword. */
 476         DescOwn         = (1 << 31), /* Descriptor is owned by NIC */
 477         RingEnd         = (1 << 30), /* End of descriptor ring */
 478         FirstFrag       = (1 << 29), /* First segment of a packet */
 479         LastFrag        = (1 << 28), /* Final segment of a packet */
 480 };
 481
 482 /* Generic case. */
 483 enum rtl_tx_desc_bit {
 484         /* First doubleword. */
 485         TD_LSO          = (1 << 27),            /* Large Send Offload */
 486 #define TD_MSS_MAX                      0x07ffu /* MSS value */
 487
 488         /* Second doubleword. */
 489         TxVlanTag       = (1 << 17),            /* Add VLAN tag */
 490 };
 491
 492 /* 8169, 8168b and 810x except 8102e. */
 493 enum rtl_tx_desc_bit_0 {
 494         /* First doubleword. */
 495 #define TD0_MSS_SHIFT                   16      /* MSS position (11 bits) */
 496         TD0_TCP_CS      = (1 << 16),            /* Calculate TCP/IP checksum */
 497         TD0_UDP_CS      = (1 << 17),            /* Calculate UDP/IP checksum */
 498         TD0_IP_CS       = (1 << 18),            /* Calculate IP checksum */
 499 };
 500
 501 /* 8102e, 8168c and beyond. */
 502 enum rtl_tx_desc_bit_1 {
 503         /* First doubleword. */
 504         TD1_GTSENV4     = (1 << 26),            /* Giant Send for IPv4 */
 505         TD1_GTSENV6     = (1 << 25),            /* Giant Send for IPv6 */
 506 #define GTTCPHO_SHIFT                   18
 507 #define GTTCPHO_MAX                     0x7f
 508
 509         /* Second doubleword. */
 510 #define TCPHO_SHIFT                     18
 511 #define TCPHO_MAX                       0x3ff
 512 #define TD1_MSS_SHIFT                   18      /* MSS position (11 bits) */
 513         TD1_IPv6_CS     = (1 << 28),            /* Calculate IPv6 checksum */
 514         TD1_IPv4_CS     = (1 << 29),            /* Calculate IPv4 checksum */
 515         TD1_TCP_CS      = (1 << 30),            /* Calculate TCP/IP checksum */
 516         TD1_UDP_CS      = (1 << 31),            /* Calculate UDP/IP checksum */
 517 };
 518
 519 enum rtl_rx_desc_bit {
 520         /* Rx private */
 521         PID1            = (1 << 18), /* Protocol ID bit 1/2 */
 522         PID0            = (1 << 17), /* Protocol ID bit 0/2 */
 523
 524 #define RxProtoUDP      (PID1)
 525 #define RxProtoTCP      (PID0)
 526 #define RxProtoIP       (PID1 | PID0)
 527 #define RxProtoMask     RxProtoIP
 528
 529         IPFail          = (1 << 16), /* IP checksum failed */
 530         UDPFail         = (1 << 15), /* UDP/IP checksum failed */
 531         TCPFail         = (1 << 14), /* TCP/IP checksum failed */
 532         RxVlanTag       = (1 << 16), /* VLAN tag available */
 533 };
 534
 535 #define RTL_GSO_MAX_SIZE_V1     32000
 536 #define RTL_GSO_MAX_SEGS_V1     24
 537 #define RTL_GSO_MAX_SIZE_V2     64000
 538 #define RTL_GSO_MAX_SEGS_V2     64
 539
 540 struct TxDesc {
 541         __le32 opts1;
 542         __le32 opts2;
 543         __le64 addr;
 544 };
 545
 546 struct RxDesc {
 547         __le32 opts1;
 548         __le32 opts2;
 549         __le64 addr;
 550 };
 551
 552 struct ring_info {
 553         struct sk_buff  *skb;
 554         u32             len;
 555 };
 556
 557 struct rtl8169_counters {
 558         __le64  tx_packets;
 559         __le64  rx_packets;
 560         __le64  tx_errors;
 561         __le32  rx_errors;
 562         __le16  rx_missed;
 563         __le16  align_errors;
 564         __le32  tx_one_collision;
 565         __le32  tx_multi_collision;
 566         __le64  rx_unicast;
 567         __le64  rx_broadcast;
 568         __le32  rx_multicast;
 569         __le16  tx_aborted;
 570         __le16  tx_underun;
 571 };
 572
 573 struct rtl8169_tc_offsets {
 574         bool    inited;
 575         __le64  tx_errors;
 576         __le32  tx_multi_collision;
 577         __le16  tx_aborted;
 578         __le16  rx_missed;
 579 };
 580
 581 enum rtl_flag {
 582         RTL_FLAG_TASK_ENABLED = 0,
 583         RTL_FLAG_TASK_RESET_PENDING,
 584         RTL_FLAG_MAX
 585 };
 586
 587 struct rtl8169_private {
 588         void __iomem *mmio_addr;        /* memory map physical address */
 589         struct pci_dev *pci_dev;
 590         struct net_device *dev;
 591         struct phy_device *phydev;
 592         struct napi_struct napi;
 593         enum mac_version mac_version;
 594         u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
 595         u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
 596         u32 dirty_tx;
 597         struct TxDesc *TxDescArray;     /* 256-aligned Tx descriptor ring */
 598         struct RxDesc *RxDescArray;     /* 256-aligned Rx descriptor ring */
 599         dma_addr_t TxPhyAddr;
 600         dma_addr_t RxPhyAddr;
 601         struct page *Rx_databuff[NUM_RX_DESC];  /* Rx data buffers */
 602         struct ring_info tx_skb[NUM_TX_DESC];   /* Tx data buffers */
 603         u16 cp_cmd;
 604         u32 irq_mask;
 605         struct clk *clk;
 606
 607         struct {
 608                 DECLARE_BITMAP(flags, RTL_FLAG_MAX);
 609                 struct work_struct work;
 610         } wk;
 611
 612         unsigned supports_gmii:1;
 613         unsigned aspm_manageable:1;
 614         dma_addr_t counters_phys_addr;
 615         struct rtl8169_counters *counters;
 616         struct rtl8169_tc_offsets tc_offset;
 617         u32 saved_wolopts;
 618         int eee_adv;
 619
 620         const char *fw_name;
 621         struct rtl_fw *rtl_fw;
 622
 623         u32 ocp_base;
 624 };
 625
 626 typedef void (*rtl_generic_fct)(struct rtl8169_private *tp);
 627
 628 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
 629 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
 630 MODULE_SOFTDEP("pre: realtek");
 631 MODULE_LICENSE("GPL");
 632 MODULE_FIRMWARE(FIRMWARE_8168D_1);
 633 MODULE_FIRMWARE(FIRMWARE_8168D_2);
 634 MODULE_FIRMWARE(FIRMWARE_8168E_1);
 635 MODULE_FIRMWARE(FIRMWARE_8168E_2);
 636 MODULE_FIRMWARE(FIRMWARE_8168E_3);
 637 MODULE_FIRMWARE(FIRMWARE_8105E_1);
 638 MODULE_FIRMWARE(FIRMWARE_8168F_1);
 639 MODULE_FIRMWARE(FIRMWARE_8168F_2);
 640 MODULE_FIRMWARE(FIRMWARE_8402_1);
 641 MODULE_FIRMWARE(FIRMWARE_8411_1);
 642 MODULE_FIRMWARE(FIRMWARE_8411_2);
 643 MODULE_FIRMWARE(FIRMWARE_8106E_1);
 644 MODULE_FIRMWARE(FIRMWARE_8106E_2);
 645 MODULE_FIRMWARE(FIRMWARE_8168G_2);
 646 MODULE_FIRMWARE(FIRMWARE_8168G_3);
 647 MODULE_FIRMWARE(FIRMWARE_8168H_1);
 648 MODULE_FIRMWARE(FIRMWARE_8168H_2);
 649 MODULE_FIRMWARE(FIRMWARE_8168FP_3);
 650 MODULE_FIRMWARE(FIRMWARE_8107E_1);
 651 MODULE_FIRMWARE(FIRMWARE_8107E_2);
 652 MODULE_FIRMWARE(FIRMWARE_8125A_3);
 653 MODULE_FIRMWARE(FIRMWARE_8125B_2);
 654
 655 static inline struct device *tp_to_dev(struct rtl8169_private *tp)
 656 {
 657         return &tp->pci_dev->dev;
 658 }
 659
 660 static void rtl_lock_config_regs(struct rtl8169_private *tp)
 661 {
 662         RTL_W8(tp, Cfg9346, Cfg9346_Lock);
 663 }
 664
 665 static void rtl_unlock_config_regs(struct rtl8169_private *tp)
 666 {
 667         RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
 668 }
 669
 670 static void rtl_pci_commit(struct rtl8169_private *tp)
 671 {
 672         /* Read an arbitrary register to commit a preceding PCI write */
 673         RTL_R8(tp, ChipCmd);
 674 }
 675
 676 static bool rtl_is_8125(struct rtl8169_private *tp)
 677 {
 678         return tp->mac_version >= RTL_GIGA_MAC_VER_60;
 679 }
 680
 681 static bool rtl_is_8168evl_up(struct rtl8169_private *tp)
 682 {
 683         return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
 684                tp->mac_version != RTL_GIGA_MAC_VER_39 &&
 685                tp->mac_version <= RTL_GIGA_MAC_VER_52;
 686 }
 687
 688 static bool rtl_supports_eee(struct rtl8169_private *tp)
 689 {
 690         return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
 691                tp->mac_version != RTL_GIGA_MAC_VER_37 &&
 692                tp->mac_version != RTL_GIGA_MAC_VER_39;
 693 }
 694
 695 static void rtl_read_mac_from_reg(struct rtl8169_private *tp, u8 *mac, int reg)
 696 {
 697         int i;
 698
 699         for (i = 0; i < ETH_ALEN; i++)
 700                 mac[i] = RTL_R8(tp, reg + i);
 701 }
 702
 703 struct rtl_cond {
 704         bool (*check)(struct rtl8169_private *);
 705         const char *msg;
 706 };
 707
 708 static bool rtl_loop_wait(struct rtl8169_private *tp, const struct rtl_cond *c,
 709                           unsigned long usecs, int n, bool high)
 710 {
 711         int i;
 712
 713         for (i = 0; i < n; i++) {
 714                 if (c->check(tp) == high)
 715                         return true;
 716                 fsleep(usecs);
 717         }
 718
 719         if (net_ratelimit())
 720                 netdev_err(tp->dev, "%s == %d (loop: %d, delay: %lu).\n",
 721                            c->msg, !high, n, usecs);
 722         return false;
 723 }
 724
 725 static bool rtl_loop_wait_high(struct rtl8169_private *tp,
 726                                const struct rtl_cond *c,
 727                                unsigned long d, int n)
 728 {
 729         return rtl_loop_wait(tp, c, d, n, true);
 730 }
 731
 732 static bool rtl_loop_wait_low(struct rtl8169_private *tp,
 733                               const struct rtl_cond *c,
 734                               unsigned long d, int n)
 735 {
 736         return rtl_loop_wait(tp, c, d, n, false);
 737 }
 738
 739 #define DECLARE_RTL_COND(name)                          \
 740 static bool name ## _check(struct rtl8169_private *);   \
 741                                                         \
 742 static const struct rtl_cond name = {                   \
 743         .check  = name ## _check,                       \
 744         .msg    = #name                                 \
 745 };                                                      \
 746                                                         \
 747 static bool name ## _check(struct rtl8169_private *tp)
 748
 749 static bool rtl_ocp_reg_failure(struct rtl8169_private *tp, u32 reg)
 750 {
 751         if (reg & 0xffff0001) {
 752                 if (net_ratelimit())
 753                         netdev_err(tp->dev, "Invalid ocp reg %x!\n", reg);
 754                 return true;
 755         }
 756         return false;
 757 }
 758
 759 DECLARE_RTL_COND(rtl_ocp_gphy_cond)
 760 {
 761         return RTL_R32(tp, GPHY_OCP) & OCPAR_FLAG;
 762 }
 763
 764 static void r8168_phy_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
 765 {
 766         if (rtl_ocp_reg_failure(tp, reg))
 767                 return;
 768
 769         RTL_W32(tp, GPHY_OCP, OCPAR_FLAG | (reg << 15) | data);
 770
 771         rtl_loop_wait_low(tp, &rtl_ocp_gphy_cond, 25, 10);
 772 }
 773
 774 static int r8168_phy_ocp_read(struct rtl8169_private *tp, u32 reg)
 775 {
 776         if (rtl_ocp_reg_failure(tp, reg))
 777                 return 0;
 778
 779         RTL_W32(tp, GPHY_OCP, reg << 15);
 780
 781         return rtl_loop_wait_high(tp, &rtl_ocp_gphy_cond, 25, 10) ?
 782                 (RTL_R32(tp, GPHY_OCP) & 0xffff) : -ETIMEDOUT;
 783 }
 784
 785 static void r8168_mac_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
 786 {
 787         if (rtl_ocp_reg_failure(tp, reg))
 788                 return;
 789
 790         RTL_W32(tp, OCPDR, OCPAR_FLAG | (reg << 15) | data);
 791 }
 792
 793 static u16 r8168_mac_ocp_read(struct rtl8169_private *tp, u32 reg)
 794 {
 795         if (rtl_ocp_reg_failure(tp, reg))
 796                 return 0;
 797
 798         RTL_W32(tp, OCPDR, reg << 15);
 799
 800         return RTL_R32(tp, OCPDR);
 801 }
 802
 803 static void r8168_mac_ocp_modify(struct rtl8169_private *tp, u32 reg, u16 mask,
 804                                  u16 set)
 805 {
 806         u16 data = r8168_mac_ocp_read(tp, reg);
 807
 808         r8168_mac_ocp_write(tp, reg, (data & ~mask) | set);
 809 }
 810
 811 static void r8168g_mdio_write(struct rtl8169_private *tp, int reg, int value)
 812 {
 813         if (reg == 0x1f) {
 814                 tp->ocp_base = value ? value << 4 : OCP_STD_PHY_BASE;
 815                 return;
 816         }
 817
 818         if (tp->ocp_base != OCP_STD_PHY_BASE)
 819                 reg -= 0x10;
 820
 821         r8168_phy_ocp_write(tp, tp->ocp_base + reg * 2, value);
 822 }
 823
 824 static int r8168g_mdio_read(struct rtl8169_private *tp, int reg)
 825 {
 826         if (reg == 0x1f)
 827                 return tp->ocp_base == OCP_STD_PHY_BASE ? 0 : tp->ocp_base >> 4;
 828
 829         if (tp->ocp_base != OCP_STD_PHY_BASE)
 830                 reg -= 0x10;
 831
 832         return r8168_phy_ocp_read(tp, tp->ocp_base + reg * 2);
 833 }
 834
 835 static void mac_mcu_write(struct rtl8169_private *tp, int reg, int value)
 836 {
 837         if (reg == 0x1f) {
 838                 tp->ocp_base = value << 4;
 839                 return;
 840         }
 841
 842         r8168_mac_ocp_write(tp, tp->ocp_base + reg, value);
 843 }
 844
 845 static int mac_mcu_read(struct rtl8169_private *tp, int reg)
 846 {
 847         return r8168_mac_ocp_read(tp, tp->ocp_base + reg);
 848 }
 849
 850 DECLARE_RTL_COND(rtl_phyar_cond)
 851 {
 852         return RTL_R32(tp, PHYAR) & 0x80000000;
 853 }
 854
 855 static void r8169_mdio_write(struct rtl8169_private *tp, int reg, int value)
 856 {
 857         RTL_W32(tp, PHYAR, 0x80000000 | (reg & 0x1f) << 16 | (value & 0xffff));
 858
 859         rtl_loop_wait_low(tp, &rtl_phyar_cond, 25, 20);
 860         /*
 861          * According to hardware specs a 20us delay is required after write
 862          * complete indication, but before sending next command.
 863          */
 864         udelay(20);
 865 }
 866
 867 static int r8169_mdio_read(struct rtl8169_private *tp, int reg)
 868 {
 869         int value;
 870
 871         RTL_W32(tp, PHYAR, 0x0 | (reg & 0x1f) << 16);
 872
 873         value = rtl_loop_wait_high(tp, &rtl_phyar_cond, 25, 20) ?
 874                 RTL_R32(tp, PHYAR) & 0xffff : -ETIMEDOUT;
 875
 876         /*
 877          * According to hardware specs a 20us delay is required after read
 878          * complete indication, but before sending next command.
 879          */
 880         udelay(20);
 881
 882         return value;
 883 }
 884
 885 DECLARE_RTL_COND(rtl_ocpar_cond)
 886 {
 887         return RTL_R32(tp, OCPAR) & OCPAR_FLAG;
 888 }
 889
 890 static void r8168dp_1_mdio_access(struct rtl8169_private *tp, int reg, u32 data)
 891 {
 892         RTL_W32(tp, OCPDR, data | ((reg & OCPDR_REG_MASK) << OCPDR_GPHY_REG_SHIFT));
 893         RTL_W32(tp, OCPAR, OCPAR_GPHY_WRITE_CMD);
 894         RTL_W32(tp, EPHY_RXER_NUM, 0);
 895
 896         rtl_loop_wait_low(tp, &rtl_ocpar_cond, 1000, 100);
 897 }
 898
 899 static void r8168dp_1_mdio_write(struct rtl8169_private *tp, int reg, int value)
 900 {
 901         r8168dp_1_mdio_access(tp, reg,
 902                               OCPDR_WRITE_CMD | (value & OCPDR_DATA_MASK));
 903 }
 904
 905 static int r8168dp_1_mdio_read(struct rtl8169_private *tp, int reg)
 906 {
 907         r8168dp_1_mdio_access(tp, reg, OCPDR_READ_CMD);
 908
 909         mdelay(1);
 910         RTL_W32(tp, OCPAR, OCPAR_GPHY_READ_CMD);
 911         RTL_W32(tp, EPHY_RXER_NUM, 0);
 912
 913         return rtl_loop_wait_high(tp, &rtl_ocpar_cond, 1000, 100) ?
 914                 RTL_R32(tp, OCPDR) & OCPDR_DATA_MASK : -ETIMEDOUT;
 915 }
 916
 917 #define R8168DP_1_MDIO_ACCESS_BIT       0x00020000
 918
 919 static void r8168dp_2_mdio_start(struct rtl8169_private *tp)
 920 {
 921         RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
 922 }
 923
 924 static void r8168dp_2_mdio_stop(struct rtl8169_private *tp)
 925 {
 926         RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
 927 }
 928
 929 static void r8168dp_2_mdio_write(struct rtl8169_private *tp, int reg, int value)
 930 {
 931         r8168dp_2_mdio_start(tp);
 932
 933         r8169_mdio_write(tp, reg, value);
 934
 935         r8168dp_2_mdio_stop(tp);
 936 }
 937
 938 static int r8168dp_2_mdio_read(struct rtl8169_private *tp, int reg)
 939 {
 940         int value;
 941
 942         /* Work around issue with chip reporting wrong PHY ID */
 943         if (reg == MII_PHYSID2)
 944                 return 0xc912;
 945
 946         r8168dp_2_mdio_start(tp);
 947
 948         value = r8169_mdio_read(tp, reg);
 949
 950         r8168dp_2_mdio_stop(tp);
 951
 952         return value;
 953 }
 954
 955 static void rtl_writephy(struct rtl8169_private *tp, int location, int val)
 956 {
 957         switch (tp->mac_version) {
 958         case RTL_GIGA_MAC_VER_27:
 959                 r8168dp_1_mdio_write(tp, location, val);
 960                 break;
 961         case RTL_GIGA_MAC_VER_28:
 962         case RTL_GIGA_MAC_VER_31:
 963                 r8168dp_2_mdio_write(tp, location, val);
 964                 break;
 965         case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
 966                 r8168g_mdio_write(tp, location, val);
 967                 break;
 968         default:
 969                 r8169_mdio_write(tp, location, val);
 970                 break;
 971         }
 972 }
 973
 974 static int rtl_readphy(struct rtl8169_private *tp, int location)
 975 {
 976         switch (tp->mac_version) {
 977         case RTL_GIGA_MAC_VER_27:
 978                 return r8168dp_1_mdio_read(tp, location);
 979         case RTL_GIGA_MAC_VER_28:
 980         case RTL_GIGA_MAC_VER_31:
 981                 return r8168dp_2_mdio_read(tp, location);
 982         case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
 983                 return r8168g_mdio_read(tp, location);
 984         default:
 985                 return r8169_mdio_read(tp, location);
 986         }
 987 }
 988
 989 DECLARE_RTL_COND(rtl_ephyar_cond)
 990 {
 991         return RTL_R32(tp, EPHYAR) & EPHYAR_FLAG;
 992 }
 993
 994 static void rtl_ephy_write(struct rtl8169_private *tp, int reg_addr, int value)
 995 {
 996         RTL_W32(tp, EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
 997                 (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
 998
 999         rtl_loop_wait_low(tp, &rtl_ephyar_cond, 10, 100);
1000
1001         udelay(10);
1002 }
1003
1004 static u16 rtl_ephy_read(struct rtl8169_private *tp, int reg_addr)
1005 {
1006         RTL_W32(tp, EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
1007
1008         return rtl_loop_wait_high(tp, &rtl_ephyar_cond, 10, 100) ?
1009                 RTL_R32(tp, EPHYAR) & EPHYAR_DATA_MASK : ~0;
1010 }
1011
1012 static void r8168fp_adjust_ocp_cmd(struct rtl8169_private *tp, u32 *cmd, int type)
1013 {
1014         /* based on RTL8168FP_OOBMAC_BASE in vendor driver */
1015         if (tp->mac_version == RTL_GIGA_MAC_VER_52 && type == ERIAR_OOB)
1016                 *cmd |= 0x7f0 << 18;
1017 }
1018
1019 DECLARE_RTL_COND(rtl_eriar_cond)
1020 {
1021         return RTL_R32(tp, ERIAR) & ERIAR_FLAG;
1022 }
1023
1024 static void _rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
1025                            u32 val, int type)
1026 {
1027         u32 cmd = ERIAR_WRITE_CMD | type | mask | addr;
1028
1029         BUG_ON((addr & 3) || (mask == 0));
1030         RTL_W32(tp, ERIDR, val);
1031         r8168fp_adjust_ocp_cmd(tp, &cmd, type);
1032         RTL_W32(tp, ERIAR, cmd);
1033
1034         rtl_loop_wait_low(tp, &rtl_eriar_cond, 100, 100);
1035 }
1036
1037 static void rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
1038                           u32 val)
1039 {
1040         _rtl_eri_write(tp, addr, mask, val, ERIAR_EXGMAC);
1041 }
1042
1043 static u32 _rtl_eri_read(struct rtl8169_private *tp, int addr, int type)
1044 {
1045         u32 cmd = ERIAR_READ_CMD | type | ERIAR_MASK_1111 | addr;
1046
1047         r8168fp_adjust_ocp_cmd(tp, &cmd, type);
1048         RTL_W32(tp, ERIAR, cmd);
1049
1050         return rtl_loop_wait_high(tp, &rtl_eriar_cond, 100, 100) ?
1051                 RTL_R32(tp, ERIDR) : ~0;
1052 }
1053
1054 static u32 rtl_eri_read(struct rtl8169_private *tp, int addr)
1055 {
1056         return _rtl_eri_read(tp, addr, ERIAR_EXGMAC);
1057 }
1058
1059 static void rtl_w0w1_eri(struct rtl8169_private *tp, int addr, u32 p, u32 m)
1060 {
1061         u32 val = rtl_eri_read(tp, addr);
1062
1063         rtl_eri_write(tp, addr, ERIAR_MASK_1111, (val & ~m) | p);
1064 }
1065
1066 static void rtl_eri_set_bits(struct rtl8169_private *tp, int addr, u32 p)
1067 {
1068         rtl_w0w1_eri(tp, addr, p, 0);
1069 }
1070
1071 static void rtl_eri_clear_bits(struct rtl8169_private *tp, int addr, u32 m)
1072 {
1073         rtl_w0w1_eri(tp, addr, 0, m);
1074 }
1075
1076 static u32 r8168dp_ocp_read(struct rtl8169_private *tp, u16 reg)
1077 {
1078         RTL_W32(tp, OCPAR, 0x0fu << 12 | (reg & 0x0fff));
1079         return rtl_loop_wait_high(tp, &rtl_ocpar_cond, 100, 20) ?
1080                 RTL_R32(tp, OCPDR) : ~0;
1081 }
1082
1083 static u32 r8168ep_ocp_read(struct rtl8169_private *tp, u16 reg)
1084 {
1085         return _rtl_eri_read(tp, reg, ERIAR_OOB);
1086 }
1087
1088 static void r8168dp_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
1089                               u32 data)
1090 {
1091         RTL_W32(tp, OCPDR, data);
1092         RTL_W32(tp, OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
1093         rtl_loop_wait_low(tp, &rtl_ocpar_cond, 100, 20);
1094 }
1095
1096 static void r8168ep_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
1097                               u32 data)
1098 {
1099         _rtl_eri_write(tp, reg, ((u32)mask & 0x0f) << ERIAR_MASK_SHIFT,
1100                        data, ERIAR_OOB);
1101 }
1102
1103 static void r8168dp_oob_notify(struct rtl8169_private *tp, u8 cmd)
1104 {
1105         rtl_eri_write(tp, 0xe8, ERIAR_MASK_0001, cmd);
1106
1107         r8168dp_ocp_write(tp, 0x1, 0x30, 0x00000001);
1108 }
1109
1110 #define OOB_CMD_RESET           0x00
1111 #define OOB_CMD_DRIVER_START    0x05
1112 #define OOB_CMD_DRIVER_STOP     0x06
1113
1114 static u16 rtl8168_get_ocp_reg(struct rtl8169_private *tp)
1115 {
1116         return (tp->mac_version == RTL_GIGA_MAC_VER_31) ? 0xb8 : 0x10;
1117 }
1118
1119 DECLARE_RTL_COND(rtl_dp_ocp_read_cond)
1120 {
1121         u16 reg;
1122
1123         reg = rtl8168_get_ocp_reg(tp);
1124
1125         return r8168dp_ocp_read(tp, reg) & 0x00000800;
1126 }
1127
1128 DECLARE_RTL_COND(rtl_ep_ocp_read_cond)
1129 {
1130         return r8168ep_ocp_read(tp, 0x124) & 0x00000001;
1131 }
1132
1133 DECLARE_RTL_COND(rtl_ocp_tx_cond)
1134 {
1135         return RTL_R8(tp, IBISR0) & 0x20;
1136 }
1137
1138 static void rtl8168ep_stop_cmac(struct rtl8169_private *tp)
1139 {
1140         RTL_W8(tp, IBCR2, RTL_R8(tp, IBCR2) & ~0x01);
1141         rtl_loop_wait_high(tp, &rtl_ocp_tx_cond, 50000, 2000);
1142         RTL_W8(tp, IBISR0, RTL_R8(tp, IBISR0) | 0x20);
1143         RTL_W8(tp, IBCR0, RTL_R8(tp, IBCR0) & ~0x01);
1144 }
1145
1146 static void rtl8168dp_driver_start(struct rtl8169_private *tp)
1147 {
1148         r8168dp_oob_notify(tp, OOB_CMD_DRIVER_START);
1149         rtl_loop_wait_high(tp, &rtl_dp_ocp_read_cond, 10000, 10);
1150 }
1151
1152 static void rtl8168ep_driver_start(struct rtl8169_private *tp)
1153 {
1154         r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_START);
1155         r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
1156         rtl_loop_wait_high(tp, &rtl_ep_ocp_read_cond, 10000, 10);
1157 }
1158
1159 static void rtl8168_driver_start(struct rtl8169_private *tp)
1160 {
1161         switch (tp->mac_version) {
1162         case RTL_GIGA_MAC_VER_27:
1163         case RTL_GIGA_MAC_VER_28:
1164         case RTL_GIGA_MAC_VER_31:
1165                 rtl8168dp_driver_start(tp);
1166                 break;
1167         case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_52:
1168                 rtl8168ep_driver_start(tp);
1169                 break;
1170         default:
1171                 BUG();
1172                 break;
1173         }
1174 }
1175
1176 static void rtl8168dp_driver_stop(struct rtl8169_private *tp)
1177 {
1178         r8168dp_oob_notify(tp, OOB_CMD_DRIVER_STOP);
1179         rtl_loop_wait_low(tp, &rtl_dp_ocp_read_cond, 10000, 10);
1180 }
1181
1182 static void rtl8168ep_driver_stop(struct rtl8169_private *tp)
1183 {
1184         rtl8168ep_stop_cmac(tp);
1185         r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_STOP);
1186         r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
1187         rtl_loop_wait_low(tp, &rtl_ep_ocp_read_cond, 10000, 10);
1188 }
1189
1190 static void rtl8168_driver_stop(struct rtl8169_private *tp)
1191 {
1192         switch (tp->mac_version) {
1193         case RTL_GIGA_MAC_VER_27:
1194         case RTL_GIGA_MAC_VER_28:
1195         case RTL_GIGA_MAC_VER_31:
1196                 rtl8168dp_driver_stop(tp);
1197                 break;
1198         case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_52:
1199                 rtl8168ep_driver_stop(tp);
1200                 break;
1201         default:
1202                 BUG();
1203                 break;
1204         }
1205 }
1206
1207 static bool r8168dp_check_dash(struct rtl8169_private *tp)
1208 {
1209         u16 reg = rtl8168_get_ocp_reg(tp);
1210
1211         return !!(r8168dp_ocp_read(tp, reg) & 0x00008000);
1212 }
1213
1214 static bool r8168ep_check_dash(struct rtl8169_private *tp)
1215 {
1216         return r8168ep_ocp_read(tp, 0x128) & 0x00000001;
1217 }
1218
1219 static bool r8168_check_dash(struct rtl8169_private *tp)
1220 {
1221         switch (tp->mac_version) {
1222         case RTL_GIGA_MAC_VER_27:
1223         case RTL_GIGA_MAC_VER_28:
1224         case RTL_GIGA_MAC_VER_31:
1225                 return r8168dp_check_dash(tp);
1226         case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_52:
1227                 return r8168ep_check_dash(tp);
1228         default:
1229                 return false;
1230         }
1231 }
1232
1233 static void rtl_reset_packet_filter(struct rtl8169_private *tp)
1234 {
1235         rtl_eri_clear_bits(tp, 0xdc, BIT(0));
1236         rtl_eri_set_bits(tp, 0xdc, BIT(0));
1237 }
1238
1239 DECLARE_RTL_COND(rtl_efusear_cond)
1240 {
1241         return RTL_R32(tp, EFUSEAR) & EFUSEAR_FLAG;
1242 }
1243
1244 u8 rtl8168d_efuse_read(struct rtl8169_private *tp, int reg_addr)
1245 {
1246         RTL_W32(tp, EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
1247
1248         return rtl_loop_wait_high(tp, &rtl_efusear_cond, 100, 300) ?
1249                 RTL_R32(tp, EFUSEAR) & EFUSEAR_DATA_MASK : ~0;
1250 }
1251
1252 static u32 rtl_get_events(struct rtl8169_private *tp)
1253 {
1254         if (rtl_is_8125(tp))
1255                 return RTL_R32(tp, IntrStatus_8125);
1256         else
1257                 return RTL_R16(tp, IntrStatus);
1258 }
1259
1260 static void rtl_ack_events(struct rtl8169_private *tp, u32 bits)
1261 {
1262         if (rtl_is_8125(tp))
1263                 RTL_W32(tp, IntrStatus_8125, bits);
1264         else
1265                 RTL_W16(tp, IntrStatus, bits);
1266 }
1267
1268 static void rtl_irq_disable(struct rtl8169_private *tp)
1269 {
1270         if (rtl_is_8125(tp))
1271                 RTL_W32(tp, IntrMask_8125, 0);
1272         else
1273                 RTL_W16(tp, IntrMask, 0);
1274 }
1275
1276 static void rtl_irq_enable(struct rtl8169_private *tp)
1277 {
1278         if (rtl_is_8125(tp))
1279                 RTL_W32(tp, IntrMask_8125, tp->irq_mask);
1280         else
1281                 RTL_W16(tp, IntrMask, tp->irq_mask);
1282 }
1283
1284 static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
1285 {
1286         rtl_irq_disable(tp);
1287         rtl_ack_events(tp, 0xffffffff);
1288         rtl_pci_commit(tp);
1289 }
1290
1291 static void rtl_link_chg_patch(struct rtl8169_private *tp)
1292 {
1293         struct phy_device *phydev = tp->phydev;
1294
1295         if (tp->mac_version == RTL_GIGA_MAC_VER_34 ||
1296             tp->mac_version == RTL_GIGA_MAC_VER_38) {
1297                 if (phydev->speed == SPEED_1000) {
1298                         rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
1299                         rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1300                 } else if (phydev->speed == SPEED_100) {
1301                         rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1302                         rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1303                 } else {
1304                         rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1305                         rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
1306                 }
1307                 rtl_reset_packet_filter(tp);
1308         } else if (tp->mac_version == RTL_GIGA_MAC_VER_35 ||
1309                    tp->mac_version == RTL_GIGA_MAC_VER_36) {
1310                 if (phydev->speed == SPEED_1000) {
1311                         rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
1312                         rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
1313                 } else {
1314                         rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
1315                         rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
1316                 }
1317         } else if (tp->mac_version == RTL_GIGA_MAC_VER_37) {
1318                 if (phydev->speed == SPEED_10) {
1319                         rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x4d02);
1320                         rtl_eri_write(tp, 0x1dc, ERIAR_MASK_0011, 0x0060a);
1321                 } else {
1322                         rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
1323                 }
1324         }
1325 }
1326
1327 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
1328
1329 static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1330 {
1331         struct rtl8169_private *tp = netdev_priv(dev);
1332
1333         wol->supported = WAKE_ANY;
1334         wol->wolopts = tp->saved_wolopts;
1335 }
1336
1337 static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
1338 {
1339         static const struct {
1340                 u32 opt;
1341                 u16 reg;
1342                 u8  mask;
1343         } cfg[] = {
1344                 { WAKE_PHY,   Config3, LinkUp },
1345                 { WAKE_UCAST, Config5, UWF },
1346                 { WAKE_BCAST, Config5, BWF },
1347                 { WAKE_MCAST, Config5, MWF },
1348                 { WAKE_ANY,   Config5, LanWake },
1349                 { WAKE_MAGIC, Config3, MagicPacket }
1350         };
1351         unsigned int i, tmp = ARRAY_SIZE(cfg);
1352         u8 options;
1353
1354         rtl_unlock_config_regs(tp);
1355
1356         if (rtl_is_8168evl_up(tp)) {
1357                 tmp--;
1358                 if (wolopts & WAKE_MAGIC)
1359                         rtl_eri_set_bits(tp, 0x0dc, MagicPacket_v2);
1360                 else
1361                         rtl_eri_clear_bits(tp, 0x0dc, MagicPacket_v2);
1362         } else if (rtl_is_8125(tp)) {
1363                 tmp--;
1364                 if (wolopts & WAKE_MAGIC)
1365                         r8168_mac_ocp_modify(tp, 0xc0b6, 0, BIT(0));
1366                 else
1367                         r8168_mac_ocp_modify(tp, 0xc0b6, BIT(0), 0);
1368         }
1369
1370         for (i = 0; i < tmp; i++) {
1371                 options = RTL_R8(tp, cfg[i].reg) & ~cfg[i].mask;
1372                 if (wolopts & cfg[i].opt)
1373                         options |= cfg[i].mask;
1374                 RTL_W8(tp, cfg[i].reg, options);
1375         }
1376
1377         switch (tp->mac_version) {
1378         case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
1379                 options = RTL_R8(tp, Config1) & ~PMEnable;
1380                 if (wolopts)
1381                         options |= PMEnable;
1382                 RTL_W8(tp, Config1, options);
1383                 break;
1384         case RTL_GIGA_MAC_VER_34:
1385         case RTL_GIGA_MAC_VER_37:
1386         case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_63:
1387                 options = RTL_R8(tp, Config2) & ~PME_SIGNAL;
1388                 if (wolopts)
1389                         options |= PME_SIGNAL;
1390                 RTL_W8(tp, Config2, options);
1391                 break;
1392         default:
1393                 break;
1394         }
1395
1396         rtl_lock_config_regs(tp);
1397
1398         device_set_wakeup_enable(tp_to_dev(tp), wolopts);
1399         tp->dev->wol_enabled = wolopts ? 1 : 0;
1400 }
1401
1402 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1403 {
1404         struct rtl8169_private *tp = netdev_priv(dev);
1405
1406         if (wol->wolopts & ~WAKE_ANY)
1407                 return -EINVAL;
1408
1409         tp->saved_wolopts = wol->wolopts;
1410         __rtl8169_set_wol(tp, tp->saved_wolopts);
1411
1412         return 0;
1413 }
1414
1415 static void rtl8169_get_drvinfo(struct net_device *dev,
1416                                 struct ethtool_drvinfo *info)
1417 {
1418         struct rtl8169_private *tp = netdev_priv(dev);
1419         struct rtl_fw *rtl_fw = tp->rtl_fw;
1420
1421         strlcpy(info->driver, MODULENAME, sizeof(info->driver));
1422         strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info));
1423         BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
1424         if (rtl_fw)
1425                 strlcpy(info->fw_version, rtl_fw->version,
1426                         sizeof(info->fw_version));
1427 }
1428
1429 static int rtl8169_get_regs_len(struct net_device *dev)
1430 {
1431         return R8169_REGS_SIZE;
1432 }
1433
1434 static netdev_features_t rtl8169_fix_features(struct net_device *dev,
1435         netdev_features_t features)
1436 {
1437         struct rtl8169_private *tp = netdev_priv(dev);
1438
1439         if (dev->mtu > TD_MSS_MAX)
1440                 features &= ~NETIF_F_ALL_TSO;
1441
1442         if (dev->mtu > ETH_DATA_LEN &&
1443             tp->mac_version > RTL_GIGA_MAC_VER_06)
1444                 features &= ~(NETIF_F_CSUM_MASK | NETIF_F_ALL_TSO);
1445
1446         return features;
1447 }
1448
1449 static void rtl_set_rx_config_features(struct rtl8169_private *tp,
1450                                        netdev_features_t features)
1451 {
1452         u32 rx_config = RTL_R32(tp, RxConfig);
1453
1454         if (features & NETIF_F_RXALL)
1455                 rx_config |= RX_CONFIG_ACCEPT_ERR_MASK;
1456         else
1457                 rx_config &= ~RX_CONFIG_ACCEPT_ERR_MASK;
1458
1459         if (rtl_is_8125(tp)) {
1460                 if (features & NETIF_F_HW_VLAN_CTAG_RX)
1461                         rx_config |= RX_VLAN_8125;
1462                 else
1463                         rx_config &= ~RX_VLAN_8125;
1464         }
1465
1466         RTL_W32(tp, RxConfig, rx_config);
1467 }
1468
1469 static int rtl8169_set_features(struct net_device *dev,
1470                                 netdev_features_t features)
1471 {
1472         struct rtl8169_private *tp = netdev_priv(dev);
1473
1474         rtl_set_rx_config_features(tp, features);
1475
1476         if (features & NETIF_F_RXCSUM)
1477                 tp->cp_cmd |= RxChkSum;
1478         else
1479                 tp->cp_cmd &= ~RxChkSum;
1480
1481         if (!rtl_is_8125(tp)) {
1482                 if (features & NETIF_F_HW_VLAN_CTAG_RX)
1483                         tp->cp_cmd |= RxVlan;
1484                 else
1485                         tp->cp_cmd &= ~RxVlan;
1486         }
1487
1488         RTL_W16(tp, CPlusCmd, tp->cp_cmd);
1489         rtl_pci_commit(tp);
1490
1491         return 0;
1492 }
1493
1494 static inline u32 rtl8169_tx_vlan_tag(struct sk_buff *skb)
1495 {
1496         return (skb_vlan_tag_present(skb)) ?
1497                 TxVlanTag | swab16(skb_vlan_tag_get(skb)) : 0x00;
1498 }
1499
1500 static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)
1501 {
1502         u32 opts2 = le32_to_cpu(desc->opts2);
1503
1504         if (opts2 & RxVlanTag)
1505                 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), swab16(opts2 & 0xffff));
1506 }
1507
1508 static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1509                              void *p)
1510 {
1511         struct rtl8169_private *tp = netdev_priv(dev);
1512         u32 __iomem *data = tp->mmio_addr;
1513         u32 *dw = p;
1514         int i;
1515
1516         for (i = 0; i < R8169_REGS_SIZE; i += 4)
1517                 memcpy_fromio(dw++, data++, 4);
1518 }
1519
1520 static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1521         "tx_packets",
1522         "rx_packets",
1523         "tx_errors",
1524         "rx_errors",
1525         "rx_missed",
1526         "align_errors",
1527         "tx_single_collisions",
1528         "tx_multi_collisions",
1529         "unicast",
1530         "broadcast",
1531         "multicast",
1532         "tx_aborted",
1533         "tx_underrun",
1534 };
1535
1536 static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1537 {
1538         switch (sset) {
1539         case ETH_SS_STATS:
1540                 return ARRAY_SIZE(rtl8169_gstrings);
1541         default:
1542                 return -EOPNOTSUPP;
1543         }
1544 }
1545
1546 DECLARE_RTL_COND(rtl_counters_cond)
1547 {
1548         return RTL_R32(tp, CounterAddrLow) & (CounterReset | CounterDump);
1549 }
1550
1551 static void rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
1552 {
1553         dma_addr_t paddr = tp->counters_phys_addr;
1554         u32 cmd;
1555
1556         RTL_W32(tp, CounterAddrHigh, (u64)paddr >> 32);
1557         rtl_pci_commit(tp);
1558         cmd = (u64)paddr & DMA_BIT_MASK(32);
1559         RTL_W32(tp, CounterAddrLow, cmd);
1560         RTL_W32(tp, CounterAddrLow, cmd | counter_cmd);
1561
1562         rtl_loop_wait_low(tp, &rtl_counters_cond, 10, 1000);
1563 }
1564
1565 static void rtl8169_update_counters(struct rtl8169_private *tp)
1566 {
1567         u8 val = RTL_R8(tp, ChipCmd);
1568
1569         /*
1570          * Some chips are unable to dump tally counters when the receiver
1571          * is disabled. If 0xff chip may be in a PCI power-save state.
1572          */
1573         if (val & CmdRxEnb && val != 0xff)
1574                 rtl8169_do_counters(tp, CounterDump);
1575 }
1576
1577 static void rtl8169_init_counter_offsets(struct rtl8169_private *tp)
1578 {
1579         struct rtl8169_counters *counters = tp->counters;
1580
1581         /*
1582          * rtl8169_init_counter_offsets is called from rtl_open.  On chip
1583          * versions prior to RTL_GIGA_MAC_VER_19 the tally counters are only
1584          * reset by a power cycle, while the counter values collected by the
1585          * driver are reset at every driver unload/load cycle.
1586          *
1587          * To make sure the HW values returned by @get_stats64 match the SW
1588          * values, we collect the initial values at first open(*) and use them
1589          * as offsets to normalize the values returned by @get_stats64.
1590          *
1591          * (*) We can't call rtl8169_init_counter_offsets from rtl_init_one
1592          * for the reason stated in rtl8169_update_counters; CmdRxEnb is only
1593          * set at open time by rtl_hw_start.
1594          */
1595
1596         if (tp->tc_offset.inited)
1597                 return;
1598
1599         if (tp->mac_version >= RTL_GIGA_MAC_VER_19) {
1600                 rtl8169_do_counters(tp, CounterReset);
1601         } else {
1602                 rtl8169_update_counters(tp);
1603                 tp->tc_offset.tx_errors = counters->tx_errors;
1604                 tp->tc_offset.tx_multi_collision = counters->tx_multi_collision;
1605                 tp->tc_offset.tx_aborted = counters->tx_aborted;
1606                 tp->tc_offset.rx_missed = counters->rx_missed;
1607         }
1608
1609         tp->tc_offset.inited = true;
1610 }
1611
1612 static void rtl8169_get_ethtool_stats(struct net_device *dev,
1613                                       struct ethtool_stats *stats, u64 *data)
1614 {
1615         struct rtl8169_private *tp = netdev_priv(dev);
1616         struct rtl8169_counters *counters;
1617
1618         counters = tp->counters;
1619         rtl8169_update_counters(tp);
1620
1621         data[0] = le64_to_cpu(counters->tx_packets);
1622         data[1] = le64_to_cpu(counters->rx_packets);
1623         data[2] = le64_to_cpu(counters->tx_errors);
1624         data[3] = le32_to_cpu(counters->rx_errors);
1625         data[4] = le16_to_cpu(counters->rx_missed);
1626         data[5] = le16_to_cpu(counters->align_errors);
1627         data[6] = le32_to_cpu(counters->tx_one_collision);
1628         data[7] = le32_to_cpu(counters->tx_multi_collision);
1629         data[8] = le64_to_cpu(counters->rx_unicast);
1630         data[9] = le64_to_cpu(counters->rx_broadcast);
1631         data[10] = le32_to_cpu(counters->rx_multicast);
1632         data[11] = le16_to_cpu(counters->tx_aborted);
1633         data[12] = le16_to_cpu(counters->tx_underun);
1634 }
1635
1636 static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1637 {
1638         switch(stringset) {
1639         case ETH_SS_STATS:
1640                 memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1641                 break;
1642         }
1643 }
1644
1645 /*
1646  * Interrupt coalescing
1647  *
1648  * > 1 - the availability of the IntrMitigate (0xe2) register through the
1649  * >     8169, 8168 and 810x line of chipsets
1650  *
1651  * 8169, 8168, and 8136(810x) serial chipsets support it.
1652  *
1653  * > 2 - the Tx timer unit at gigabit speed
1654  *
1655  * The unit of the timer depends on both the speed and the setting of CPlusCmd
1656  * (0xe0) bit 1 and bit 0.
1657  *
1658  * For 8169
1659  * bit[1:0] \ speed        1000M           100M            10M
1660  * 0 0                     320ns           2.56us          40.96us
1661  * 0 1                     2.56us          20.48us         327.7us
1662  * 1 0                     5.12us          40.96us         655.4us
1663  * 1 1                     10.24us         81.92us         1.31ms
1664  *
1665  * For the other
1666  * bit[1:0] \ speed        1000M           100M            10M
1667  * 0 0                     5us             2.56us          40.96us
1668  * 0 1                     40us            20.48us         327.7us
1669  * 1 0                     80us            40.96us         655.4us
1670  * 1 1                     160us           81.92us         1.31ms
1671  */
1672
1673 /* rx/tx scale factors for all CPlusCmd[0:1] cases */
1674 struct rtl_coalesce_info {
1675         u32 speed;
1676         u32 scale_nsecs[4];
1677 };
1678
1679 /* produce array with base delay *1, *8, *8*2, *8*2*2 */
1680 #define COALESCE_DELAY(d) { (d), 8 * (d), 16 * (d), 32 * (d) }
1681
1682 static const struct rtl_coalesce_info rtl_coalesce_info_8169[] = {
1683         { SPEED_1000,   COALESCE_DELAY(320) },
1684         { SPEED_100,    COALESCE_DELAY(2560) },
1685         { SPEED_10,     COALESCE_DELAY(40960) },
1686         { 0 },
1687 };
1688
1689 static const struct rtl_coalesce_info rtl_coalesce_info_8168_8136[] = {
1690         { SPEED_1000,   COALESCE_DELAY(5000) },
1691         { SPEED_100,    COALESCE_DELAY(2560) },
1692         { SPEED_10,     COALESCE_DELAY(40960) },
1693         { 0 },
1694 };
1695 #undef COALESCE_DELAY
1696
1697 /* get rx/tx scale vector corresponding to current speed */
1698 static const struct rtl_coalesce_info *
1699 rtl_coalesce_info(struct rtl8169_private *tp)
1700 {
1701         const struct rtl_coalesce_info *ci;
1702
1703         if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
1704                 ci = rtl_coalesce_info_8169;
1705         else
1706                 ci = rtl_coalesce_info_8168_8136;
1707
1708         /* if speed is unknown assume highest one */
1709         if (tp->phydev->speed == SPEED_UNKNOWN)
1710                 return ci;
1711
1712         for (; ci->speed; ci++) {
1713                 if (tp->phydev->speed == ci->speed)
1714                         return ci;
1715         }
1716
1717         return ERR_PTR(-ELNRNG);
1718 }
1719
1720 static int rtl_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1721 {
1722         struct rtl8169_private *tp = netdev_priv(dev);
1723         const struct rtl_coalesce_info *ci;
1724         u32 scale, c_us, c_fr;
1725         u16 intrmit;
1726
1727         if (rtl_is_8125(tp))
1728                 return -EOPNOTSUPP;
1729
1730         memset(ec, 0, sizeof(*ec));
1731
1732         /* get rx/tx scale corresponding to current speed and CPlusCmd[0:1] */
1733         ci = rtl_coalesce_info(tp);
1734         if (IS_ERR(ci))
1735                 return PTR_ERR(ci);
1736
1737         scale = ci->scale_nsecs[tp->cp_cmd & INTT_MASK];
1738
1739         intrmit = RTL_R16(tp, IntrMitigate);
1740
1741         c_us = FIELD_GET(RTL_COALESCE_TX_USECS, intrmit);
1742         ec->tx_coalesce_usecs = DIV_ROUND_UP(c_us * scale, 1000);
1743
1744         c_fr = FIELD_GET(RTL_COALESCE_TX_FRAMES, intrmit);
1745         /* ethtool_coalesce states usecs and max_frames must not both be 0 */
1746         ec->tx_max_coalesced_frames = (c_us || c_fr) ? c_fr * 4 : 1;
1747
1748         c_us = FIELD_GET(RTL_COALESCE_RX_USECS, intrmit);
1749         ec->rx_coalesce_usecs = DIV_ROUND_UP(c_us * scale, 1000);
1750
1751         c_fr = FIELD_GET(RTL_COALESCE_RX_FRAMES, intrmit);
1752         ec->rx_max_coalesced_frames = (c_us || c_fr) ? c_fr * 4 : 1;
1753
1754         return 0;
1755 }
1756
1757 /* choose appropriate scale factor and CPlusCmd[0:1] for (speed, usec) */
1758 static int rtl_coalesce_choose_scale(struct rtl8169_private *tp, u32 usec,
1759                                      u16 *cp01)
1760 {
1761         const struct rtl_coalesce_info *ci;
1762         u16 i;
1763
1764         ci = rtl_coalesce_info(tp);
1765         if (IS_ERR(ci))
1766                 return PTR_ERR(ci);
1767
1768         for (i = 0; i < 4; i++) {
1769                 if (usec <= ci->scale_nsecs[i] * RTL_COALESCE_T_MAX / 1000U) {
1770                         *cp01 = i;
1771                         return ci->scale_nsecs[i];
1772                 }
1773         }
1774
1775         return -ERANGE;
1776 }
1777
1778 static int rtl_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
1779 {
1780         struct rtl8169_private *tp = netdev_priv(dev);
1781         u32 tx_fr = ec->tx_max_coalesced_frames;
1782         u32 rx_fr = ec->rx_max_coalesced_frames;
1783         u32 coal_usec_max, units;
1784         u16 w = 0, cp01 = 0;
1785         int scale;
1786
1787         if (rtl_is_8125(tp))
1788                 return -EOPNOTSUPP;
1789
1790         if (rx_fr > RTL_COALESCE_FRAME_MAX || tx_fr > RTL_COALESCE_FRAME_MAX)
1791                 return -ERANGE;
1792
1793         coal_usec_max = max(ec->rx_coalesce_usecs, ec->tx_coalesce_usecs);
1794         scale = rtl_coalesce_choose_scale(tp, coal_usec_max, &cp01);
1795         if (scale < 0)
1796                 return scale;
1797
1798         /* Accept max_frames=1 we returned in rtl_get_coalesce. Accept it
1799          * not only when usecs=0 because of e.g. the following scenario:
1800          *
1801          * - both rx_usecs=0 & rx_frames=0 in hardware (no delay on RX)
1802          * - rtl_get_coalesce returns rx_usecs=0, rx_frames=1
1803          * - then user does `ethtool -C eth0 rx-usecs 100`
1804          *
1805          * Since ethtool sends to kernel whole ethtool_coalesce settings,
1806          * if we want to ignore rx_frames then it has to be set to 0.
1807          */
1808         if (rx_fr == 1)
1809                 rx_fr = 0;
1810         if (tx_fr == 1)
1811                 tx_fr = 0;
1812
1813         /* HW requires time limit to be set if frame limit is set */
1814         if ((tx_fr && !ec->tx_coalesce_usecs) ||
1815             (rx_fr && !ec->rx_coalesce_usecs))
1816                 return -EINVAL;
1817
1818         w |= FIELD_PREP(RTL_COALESCE_TX_FRAMES, DIV_ROUND_UP(tx_fr, 4));
1819         w |= FIELD_PREP(RTL_COALESCE_RX_FRAMES, DIV_ROUND_UP(rx_fr, 4));
1820
1821         units = DIV_ROUND_UP(ec->tx_coalesce_usecs * 1000U, scale);
1822         w |= FIELD_PREP(RTL_COALESCE_TX_USECS, units);
1823         units = DIV_ROUND_UP(ec->rx_coalesce_usecs * 1000U, scale);
1824         w |= FIELD_PREP(RTL_COALESCE_RX_USECS, units);
1825
1826         RTL_W16(tp, IntrMitigate, w);
1827
1828         /* Meaning of PktCntrDisable bit changed from RTL8168e-vl */
1829         if (rtl_is_8168evl_up(tp)) {
1830                 if (!rx_fr && !tx_fr)
1831                         /* disable packet counter */
1832                         tp->cp_cmd |= PktCntrDisable;
1833                 else
1834                         tp->cp_cmd &= ~PktCntrDisable;
1835         }
1836
1837         tp->cp_cmd = (tp->cp_cmd & ~INTT_MASK) | cp01;
1838         RTL_W16(tp, CPlusCmd, tp->cp_cmd);
1839         rtl_pci_commit(tp);
1840
1841         return 0;
1842 }
1843
1844 static int rtl8169_get_eee(struct net_device *dev, struct ethtool_eee *data)
1845 {
1846         struct rtl8169_private *tp = netdev_priv(dev);
1847
1848         if (!rtl_supports_eee(tp))
1849                 return -EOPNOTSUPP;
1850
1851         return phy_ethtool_get_eee(tp->phydev, data);
1852 }
1853
1854 static int rtl8169_set_eee(struct net_device *dev, struct ethtool_eee *data)
1855 {
1856         struct rtl8169_private *tp = netdev_priv(dev);
1857         int ret;
1858
1859         if (!rtl_supports_eee(tp))
1860                 return -EOPNOTSUPP;
1861
1862         ret = phy_ethtool_set_eee(tp->phydev, data);
1863
1864         if (!ret)
1865                 tp->eee_adv = phy_read_mmd(dev->phydev, MDIO_MMD_AN,
1866                                            MDIO_AN_EEE_ADV);
1867         return ret;
1868 }
1869
1870 static const struct ethtool_ops rtl8169_ethtool_ops = {
1871         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1872                                      ETHTOOL_COALESCE_MAX_FRAMES,
1873         .get_drvinfo            = rtl8169_get_drvinfo,
1874         .get_regs_len           = rtl8169_get_regs_len,
1875         .get_link               = ethtool_op_get_link,
1876         .get_coalesce           = rtl_get_coalesce,
1877         .set_coalesce           = rtl_set_coalesce,
1878         .get_regs               = rtl8169_get_regs,
1879         .get_wol                = rtl8169_get_wol,
1880         .set_wol                = rtl8169_set_wol,
1881         .get_strings            = rtl8169_get_strings,
1882         .get_sset_count         = rtl8169_get_sset_count,
1883         .get_ethtool_stats      = rtl8169_get_ethtool_stats,
1884         .get_ts_info            = ethtool_op_get_ts_info,
1885         .nway_reset             = phy_ethtool_nway_reset,
1886         .get_eee                = rtl8169_get_eee,
1887         .set_eee                = rtl8169_set_eee,
1888         .get_link_ksettings     = phy_ethtool_get_link_ksettings,
1889         .set_link_ksettings     = phy_ethtool_set_link_ksettings,
1890 };
1891
1892 static void rtl_enable_eee(struct rtl8169_private *tp)
1893 {
1894         struct phy_device *phydev = tp->phydev;
1895         int adv;
1896
1897         /* respect EEE advertisement the user may have set */
1898         if (tp->eee_adv >= 0)
1899                 adv = tp->eee_adv;
1900         else
1901                 adv = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
1902
1903         if (adv >= 0)
1904                 phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
1905 }
1906
1907 static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
1908 {
1909         /*
1910          * The driver currently handles the 8168Bf and the 8168Be identically
1911          * but they can be identified more specifically through the test below
1912          * if needed:
1913          *
1914          * (RTL_R32(tp, TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1915          *
1916          * Same thing for the 8101Eb and the 8101Ec:
1917          *
1918          * (RTL_R32(tp, TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1919          */
1920         static const struct rtl_mac_info {
1921                 u16 mask;
1922                 u16 val;
1923                 enum mac_version ver;
1924         } mac_info[] = {
1925                 /* 8125B family. */
1926                 { 0x7cf, 0x641, RTL_GIGA_MAC_VER_63 },
1927
1928                 /* 8125A family. */
1929                 { 0x7cf, 0x608, RTL_GIGA_MAC_VER_60 },
1930                 { 0x7c8, 0x608, RTL_GIGA_MAC_VER_61 },
1931
1932                 /* RTL8117 */
1933                 { 0x7cf, 0x54a, RTL_GIGA_MAC_VER_52 },
1934
1935                 /* 8168EP family. */
1936                 { 0x7cf, 0x502, RTL_GIGA_MAC_VER_51 },
1937                 { 0x7cf, 0x501, RTL_GIGA_MAC_VER_50 },
1938                 { 0x7cf, 0x500, RTL_GIGA_MAC_VER_49 },
1939
1940                 /* 8168H family. */
1941                 { 0x7cf, 0x541, RTL_GIGA_MAC_VER_46 },
1942                 { 0x7cf, 0x540, RTL_GIGA_MAC_VER_45 },
1943
1944                 /* 8168G family. */
1945                 { 0x7cf, 0x5c8, RTL_GIGA_MAC_VER_44 },
1946                 { 0x7cf, 0x509, RTL_GIGA_MAC_VER_42 },
1947                 { 0x7cf, 0x4c1, RTL_GIGA_MAC_VER_41 },
1948                 { 0x7cf, 0x4c0, RTL_GIGA_MAC_VER_40 },
1949
1950                 /* 8168F family. */
1951                 { 0x7c8, 0x488, RTL_GIGA_MAC_VER_38 },
1952                 { 0x7cf, 0x481, RTL_GIGA_MAC_VER_36 },
1953                 { 0x7cf, 0x480, RTL_GIGA_MAC_VER_35 },
1954
1955                 /* 8168E family. */
1956                 { 0x7c8, 0x2c8, RTL_GIGA_MAC_VER_34 },
1957                 { 0x7cf, 0x2c1, RTL_GIGA_MAC_VER_32 },
1958                 { 0x7c8, 0x2c0, RTL_GIGA_MAC_VER_33 },
1959
1960                 /* 8168D family. */
1961                 { 0x7cf, 0x281, RTL_GIGA_MAC_VER_25 },
1962                 { 0x7c8, 0x280, RTL_GIGA_MAC_VER_26 },
1963
1964                 /* 8168DP family. */
1965                 { 0x7cf, 0x288, RTL_GIGA_MAC_VER_27 },
1966                 { 0x7cf, 0x28a, RTL_GIGA_MAC_VER_28 },
1967                 { 0x7cf, 0x28b, RTL_GIGA_MAC_VER_31 },
1968
1969                 /* 8168C family. */
1970                 { 0x7cf, 0x3c9, RTL_GIGA_MAC_VER_23 },
1971                 { 0x7cf, 0x3c8, RTL_GIGA_MAC_VER_18 },
1972                 { 0x7c8, 0x3c8, RTL_GIGA_MAC_VER_24 },
1973                 { 0x7cf, 0x3c0, RTL_GIGA_MAC_VER_19 },
1974                 { 0x7cf, 0x3c2, RTL_GIGA_MAC_VER_20 },
1975                 { 0x7cf, 0x3c3, RTL_GIGA_MAC_VER_21 },
1976                 { 0x7c8, 0x3c0, RTL_GIGA_MAC_VER_22 },
1977
1978                 /* 8168B family. */
1979                 { 0x7cf, 0x380, RTL_GIGA_MAC_VER_12 },
1980                 { 0x7c8, 0x380, RTL_GIGA_MAC_VER_17 },
1981                 { 0x7c8, 0x300, RTL_GIGA_MAC_VER_11 },
1982
1983                 /* 8101 family. */
1984                 { 0x7c8, 0x448, RTL_GIGA_MAC_VER_39 },
1985                 { 0x7c8, 0x440, RTL_GIGA_MAC_VER_37 },
1986                 { 0x7cf, 0x409, RTL_GIGA_MAC_VER_29 },
1987                 { 0x7c8, 0x408, RTL_GIGA_MAC_VER_30 },
1988                 { 0x7cf, 0x349, RTL_GIGA_MAC_VER_08 },
1989                 { 0x7cf, 0x249, RTL_GIGA_MAC_VER_08 },
1990                 { 0x7cf, 0x348, RTL_GIGA_MAC_VER_07 },
1991                 { 0x7cf, 0x248, RTL_GIGA_MAC_VER_07 },
1992                 { 0x7cf, 0x340, RTL_GIGA_MAC_VER_13 },
1993                 { 0x7cf, 0x240, RTL_GIGA_MAC_VER_14 },
1994                 { 0x7cf, 0x343, RTL_GIGA_MAC_VER_10 },
1995                 { 0x7cf, 0x342, RTL_GIGA_MAC_VER_16 },
1996                 { 0x7c8, 0x348, RTL_GIGA_MAC_VER_09 },
1997                 { 0x7c8, 0x248, RTL_GIGA_MAC_VER_09 },
1998                 { 0x7c8, 0x340, RTL_GIGA_MAC_VER_16 },
1999                 /* FIXME: where did these entries come from ? -- FR */
2000                 { 0xfc8, 0x388, RTL_GIGA_MAC_VER_13 },
2001                 { 0xfc8, 0x308, RTL_GIGA_MAC_VER_13 },
2002
2003                 /* 8110 family. */
2004                 { 0xfc8, 0x980, RTL_GIGA_MAC_VER_06 },
2005                 { 0xfc8, 0x180, RTL_GIGA_MAC_VER_05 },
2006                 { 0xfc8, 0x100, RTL_GIGA_MAC_VER_04 },
2007                 { 0xfc8, 0x040, RTL_GIGA_MAC_VER_03 },
2008                 { 0xfc8, 0x008, RTL_GIGA_MAC_VER_02 },
2009
2010                 /* Catch-all */
2011                 { 0x000, 0x000, RTL_GIGA_MAC_NONE   }
2012         };
2013         const struct rtl_mac_info *p = mac_info;
2014         enum mac_version ver;
2015
2016         while ((xid & p->mask) != p->val)
2017                 p++;
2018         ver = p->ver;
2019
2020         if (ver != RTL_GIGA_MAC_NONE && !gmii) {
2021                 if (ver == RTL_GIGA_MAC_VER_42)
2022                         ver = RTL_GIGA_MAC_VER_43;
2023                 else if (ver == RTL_GIGA_MAC_VER_45)
2024                         ver = RTL_GIGA_MAC_VER_47;
2025                 else if (ver == RTL_GIGA_MAC_VER_46)
2026                         ver = RTL_GIGA_MAC_VER_48;
2027         }
2028
2029         return ver;
2030 }
2031
2032 static void rtl_release_firmware(struct rtl8169_private *tp)
2033 {
2034         if (tp->rtl_fw) {
2035                 rtl_fw_release_firmware(tp->rtl_fw);
2036                 kfree(tp->rtl_fw);
2037                 tp->rtl_fw = NULL;
2038         }
2039 }
2040
2041 void r8169_apply_firmware(struct rtl8169_private *tp)
2042 {
2043         int val;
2044
2045         /* TODO: release firmware if rtl_fw_write_firmware signals failure. */
2046         if (tp->rtl_fw) {
2047                 rtl_fw_write_firmware(tp, tp->rtl_fw);
2048                 /* At least one firmware doesn't reset tp->ocp_base. */
2049                 tp->ocp_base = OCP_STD_PHY_BASE;
2050
2051                 /* PHY soft reset may still be in progress */
2052                 phy_read_poll_timeout(tp->phydev, MII_BMCR, val,
2053                                       !(val & BMCR_RESET),
2054                                       50000, 600000, true);
2055         }
2056 }
2057
2058 static void rtl8168_config_eee_mac(struct rtl8169_private *tp)
2059 {
2060         /* Adjust EEE LED frequency */
2061         if (tp->mac_version != RTL_GIGA_MAC_VER_38)
2062                 RTL_W8(tp, EEE_LED, RTL_R8(tp, EEE_LED) & ~0x07);
2063
2064         rtl_eri_set_bits(tp, 0x1b0, 0x0003);
2065 }
2066
2067 static void rtl8125a_config_eee_mac(struct rtl8169_private *tp)
2068 {
2069         r8168_mac_ocp_modify(tp, 0xe040, 0, BIT(1) | BIT(0));
2070         r8168_mac_ocp_modify(tp, 0xeb62, 0, BIT(2) | BIT(1));
2071 }
2072
2073 static void rtl8125_set_eee_txidle_timer(struct rtl8169_private *tp)
2074 {
2075         RTL_W16(tp, EEE_TXIDLE_TIMER_8125, tp->dev->mtu + ETH_HLEN + 0x20);
2076 }
2077
2078 static void rtl8125b_config_eee_mac(struct rtl8169_private *tp)
2079 {
2080         rtl8125_set_eee_txidle_timer(tp);
2081         r8168_mac_ocp_modify(tp, 0xe040, 0, BIT(1) | BIT(0));
2082 }
2083
2084 static void rtl_rar_exgmac_set(struct rtl8169_private *tp, u8 *addr)
2085 {
2086         const u16 w[] = {
2087                 addr[0] | (addr[1] << 8),
2088                 addr[2] | (addr[3] << 8),
2089                 addr[4] | (addr[5] << 8)
2090         };
2091
2092         rtl_eri_write(tp, 0xe0, ERIAR_MASK_1111, w[0] | (w[1] << 16));
2093         rtl_eri_write(tp, 0xe4, ERIAR_MASK_1111, w[2]);
2094         rtl_eri_write(tp, 0xf0, ERIAR_MASK_1111, w[0] << 16);
2095         rtl_eri_write(tp, 0xf4, ERIAR_MASK_1111, w[1] | (w[2] << 16));
2096 }
2097
2098 u16 rtl8168h_2_get_adc_bias_ioffset(struct rtl8169_private *tp)
2099 {
2100         u16 data1, data2, ioffset;
2101
2102         r8168_mac_ocp_write(tp, 0xdd02, 0x807d);
2103         data1 = r8168_mac_ocp_read(tp, 0xdd02);
2104         data2 = r8168_mac_ocp_read(tp, 0xdd00);
2105
2106         ioffset = (data2 >> 1) & 0x7ff8;
2107         ioffset |= data2 & 0x0007;
2108         if (data1 & BIT(7))
2109                 ioffset |= BIT(15);
2110
2111         return ioffset;
2112 }
2113
2114 static void rtl_schedule_task(struct rtl8169_private *tp, enum rtl_flag flag)
2115 {
2116         set_bit(flag, tp->wk.flags);
2117         schedule_work(&tp->wk.work);
2118 }
2119
2120 static void rtl8169_init_phy(struct rtl8169_private *tp)
2121 {
2122         r8169_hw_phy_config(tp, tp->phydev, tp->mac_version);
2123
2124         if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
2125                 pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
2126                 pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
2127                 /* set undocumented MAC Reg C+CR Offset 0x82h */
2128                 RTL_W8(tp, 0x82, 0x01);
2129         }
2130
2131         if (tp->mac_version == RTL_GIGA_MAC_VER_05 &&
2132             tp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_GIGABYTE &&
2133             tp->pci_dev->subsystem_device == 0xe000)
2134                 phy_write_paged(tp->phydev, 0x0001, 0x10, 0xf01b);
2135
2136         /* We may have called phy_speed_down before */
2137         phy_speed_up(tp->phydev);
2138
2139         if (rtl_supports_eee(tp))
2140                 rtl_enable_eee(tp);
2141
2142         genphy_soft_reset(tp->phydev);
2143 }
2144
2145 static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
2146 {
2147         rtl_unlock_config_regs(tp);
2148
2149         RTL_W32(tp, MAC4, addr[4] | addr[5] << 8);
2150         rtl_pci_commit(tp);
2151
2152         RTL_W32(tp, MAC0, addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
2153         rtl_pci_commit(tp);
2154
2155         if (tp->mac_version == RTL_GIGA_MAC_VER_34)
2156                 rtl_rar_exgmac_set(tp, addr);
2157
2158         rtl_lock_config_regs(tp);
2159 }
2160
2161 static int rtl_set_mac_address(struct net_device *dev, void *p)
2162 {
2163         struct rtl8169_private *tp = netdev_priv(dev);
2164         int ret;
2165
2166         ret = eth_mac_addr(dev, p);
2167         if (ret)
2168                 return ret;
2169
2170         rtl_rar_set(tp, dev->dev_addr);
2171
2172         return 0;
2173 }
2174
2175 static void rtl_wol_suspend_quirk(struct rtl8169_private *tp)
2176 {
2177         switch (tp->mac_version) {
2178         case RTL_GIGA_MAC_VER_25:
2179         case RTL_GIGA_MAC_VER_26:
2180         case RTL_GIGA_MAC_VER_29:
2181         case RTL_GIGA_MAC_VER_30:
2182         case RTL_GIGA_MAC_VER_32:
2183         case RTL_GIGA_MAC_VER_33:
2184         case RTL_GIGA_MAC_VER_34:
2185         case RTL_GIGA_MAC_VER_37 ... RTL_GIGA_MAC_VER_63:
2186                 RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) |
2187                         AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
2188                 break;
2189         default:
2190                 break;
2191         }
2192 }
2193
2194 static void rtl_pll_power_down(struct rtl8169_private *tp)
2195 {
2196         if (r8168_check_dash(tp))
2197                 return;
2198
2199         if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
2200             tp->mac_version == RTL_GIGA_MAC_VER_33)
2201                 rtl_ephy_write(tp, 0x19, 0xff64);
2202
2203         if (device_may_wakeup(tp_to_dev(tp))) {
2204                 phy_speed_down(tp->phydev, false);
2205                 rtl_wol_suspend_quirk(tp);
2206                 return;
2207         }
2208
2209         switch (tp->mac_version) {
2210         case RTL_GIGA_MAC_VER_25 ... RTL_GIGA_MAC_VER_26:
2211         case RTL_GIGA_MAC_VER_32 ... RTL_GIGA_MAC_VER_33:
2212         case RTL_GIGA_MAC_VER_37:
2213         case RTL_GIGA_MAC_VER_39:
2214         case RTL_GIGA_MAC_VER_43:
2215         case RTL_GIGA_MAC_VER_44:
2216         case RTL_GIGA_MAC_VER_45:
2217         case RTL_GIGA_MAC_VER_46:
2218         case RTL_GIGA_MAC_VER_47:
2219         case RTL_GIGA_MAC_VER_48:
2220         case RTL_GIGA_MAC_VER_50 ... RTL_GIGA_MAC_VER_63:
2221                 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~0x80);
2222                 break;
2223         case RTL_GIGA_MAC_VER_40:
2224         case RTL_GIGA_MAC_VER_41:
2225         case RTL_GIGA_MAC_VER_49:
2226                 rtl_eri_clear_bits(tp, 0x1a8, 0xfc000000);
2227                 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~0x80);
2228                 break;
2229         default:
2230                 break;
2231         }
2232 }
2233
2234 static void rtl_pll_power_up(struct rtl8169_private *tp)
2235 {
2236         switch (tp->mac_version) {
2237         case RTL_GIGA_MAC_VER_25 ... RTL_GIGA_MAC_VER_26:
2238         case RTL_GIGA_MAC_VER_32 ... RTL_GIGA_MAC_VER_33:
2239         case RTL_GIGA_MAC_VER_37:
2240         case RTL_GIGA_MAC_VER_39:
2241         case RTL_GIGA_MAC_VER_43:
2242                 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0x80);
2243                 break;
2244         case RTL_GIGA_MAC_VER_44:
2245         case RTL_GIGA_MAC_VER_45:
2246         case RTL_GIGA_MAC_VER_46:
2247         case RTL_GIGA_MAC_VER_47:
2248         case RTL_GIGA_MAC_VER_48:
2249         case RTL_GIGA_MAC_VER_50 ... RTL_GIGA_MAC_VER_63:
2250                 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0xc0);
2251                 break;
2252         case RTL_GIGA_MAC_VER_40:
2253         case RTL_GIGA_MAC_VER_41:
2254         case RTL_GIGA_MAC_VER_49:
2255                 RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0xc0);
2256                 rtl_eri_set_bits(tp, 0x1a8, 0xfc000000);
2257                 break;
2258         default:
2259                 break;
2260         }
2261
2262         phy_resume(tp->phydev);
2263 }
2264
2265 static void rtl_init_rxcfg(struct rtl8169_private *tp)
2266 {
2267         switch (tp->mac_version) {
2268         case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
2269         case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
2270                 RTL_W32(tp, RxConfig, RX_FIFO_THRESH | RX_DMA_BURST);
2271                 break;
2272         case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
2273         case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36:
2274         case RTL_GIGA_MAC_VER_38:
2275                 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST);
2276                 break;
2277         case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_52:
2278                 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST | RX_EARLY_OFF);
2279                 break;
2280         case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_63:
2281                 RTL_W32(tp, RxConfig, RX_FETCH_DFLT_8125 | RX_DMA_BURST);
2282                 break;
2283         default:
2284                 RTL_W32(tp, RxConfig, RX128_INT_EN | RX_DMA_BURST);
2285                 break;
2286         }
2287 }
2288
2289 static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
2290 {
2291         tp->dirty_tx = tp->cur_tx = tp->cur_rx = 0;
2292 }
2293
2294 static void r8168c_hw_jumbo_enable(struct rtl8169_private *tp)
2295 {
2296         RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2297         RTL_W8(tp, Config4, RTL_R8(tp, Config4) | Jumbo_En1);
2298 }
2299
2300 static void r8168c_hw_jumbo_disable(struct rtl8169_private *tp)
2301 {
2302         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2303         RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~Jumbo_En1);
2304 }
2305
2306 static void r8168dp_hw_jumbo_enable(struct rtl8169_private *tp)
2307 {
2308         RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2309 }
2310
2311 static void r8168dp_hw_jumbo_disable(struct rtl8169_private *tp)
2312 {
2313         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2314 }
2315
2316 static void r8168e_hw_jumbo_enable(struct rtl8169_private *tp)
2317 {
2318         RTL_W8(tp, MaxTxPacketSize, 0x3f);
2319         RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
2320         RTL_W8(tp, Config4, RTL_R8(tp, Config4) | 0x01);
2321 }
2322
2323 static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
2324 {
2325         RTL_W8(tp, MaxTxPacketSize, 0x0c);
2326         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
2327         RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~0x01);
2328 }
2329
2330 static void r8168b_1_hw_jumbo_enable(struct rtl8169_private *tp)
2331 {
2332         RTL_W8(tp, Config4, RTL_R8(tp, Config4) | (1 << 0));
2333 }
2334
2335 static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
2336 {
2337         RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~(1 << 0));
2338 }
2339
2340 static void rtl_jumbo_config(struct rtl8169_private *tp)
2341 {
2342         bool jumbo = tp->dev->mtu > ETH_DATA_LEN;
2343
2344         rtl_unlock_config_regs(tp);
2345         switch (tp->mac_version) {
2346         case RTL_GIGA_MAC_VER_12:
2347         case RTL_GIGA_MAC_VER_17:
2348                 if (jumbo) {
2349                         pcie_set_readrq(tp->pci_dev, 512);
2350                         r8168b_1_hw_jumbo_enable(tp);
2351                 } else {
2352                         r8168b_1_hw_jumbo_disable(tp);
2353                 }
2354                 break;
2355         case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
2356                 if (jumbo) {
2357                         pcie_set_readrq(tp->pci_dev, 512);
2358                         r8168c_hw_jumbo_enable(tp);
2359                 } else {
2360                         r8168c_hw_jumbo_disable(tp);
2361                 }
2362                 break;
2363         case RTL_GIGA_MAC_VER_27 ... RTL_GIGA_MAC_VER_28:
2364                 if (jumbo)
2365                         r8168dp_hw_jumbo_enable(tp);
2366                 else
2367                         r8168dp_hw_jumbo_disable(tp);
2368                 break;
2369         case RTL_GIGA_MAC_VER_31 ... RTL_GIGA_MAC_VER_33:
2370                 if (jumbo) {
2371                         pcie_set_readrq(tp->pci_dev, 512);
2372                         r8168e_hw_jumbo_enable(tp);
2373                 } else {
2374                         r8168e_hw_jumbo_disable(tp);
2375                 }
2376                 break;
2377         default:
2378                 break;
2379         }
2380         rtl_lock_config_regs(tp);
2381
2382         if (!jumbo && pci_is_pcie(tp->pci_dev) && tp->supports_gmii)
2383                 pcie_set_readrq(tp->pci_dev, 4096);
2384 }
2385
2386 DECLARE_RTL_COND(rtl_chipcmd_cond)
2387 {
2388         return RTL_R8(tp, ChipCmd) & CmdReset;
2389 }
2390
2391 static void rtl_hw_reset(struct rtl8169_private *tp)
2392 {
2393         RTL_W8(tp, ChipCmd, CmdReset);
2394
2395         rtl_loop_wait_low(tp, &rtl_chipcmd_cond, 100, 100);
2396 }
2397
2398 static void rtl_request_firmware(struct rtl8169_private *tp)
2399 {
2400         struct rtl_fw *rtl_fw;
2401
2402         /* firmware loaded already or no firmware available */
2403         if (tp->rtl_fw || !tp->fw_name)
2404                 return;
2405
2406         rtl_fw = kzalloc(sizeof(*rtl_fw), GFP_KERNEL);
2407         if (!rtl_fw)
2408                 return;
2409
2410         rtl_fw->phy_write = rtl_writephy;
2411         rtl_fw->phy_read = rtl_readphy;
2412         rtl_fw->mac_mcu_write = mac_mcu_write;
2413         rtl_fw->mac_mcu_read = mac_mcu_read;
2414         rtl_fw->fw_name = tp->fw_name;
2415         rtl_fw->dev = tp_to_dev(tp);
2416
2417         if (rtl_fw_request_firmware(rtl_fw))
2418                 kfree(rtl_fw);
2419         else
2420                 tp->rtl_fw = rtl_fw;
2421 }
2422
2423 static void rtl_rx_close(struct rtl8169_private *tp)
2424 {
2425         RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) & ~RX_CONFIG_ACCEPT_MASK);
2426 }
2427
2428 DECLARE_RTL_COND(rtl_npq_cond)
2429 {
2430         return RTL_R8(tp, TxPoll) & NPQ;
2431 }
2432
2433 DECLARE_RTL_COND(rtl_txcfg_empty_cond)
2434 {
2435         return RTL_R32(tp, TxConfig) & TXCFG_EMPTY;
2436 }
2437
2438 DECLARE_RTL_COND(rtl_rxtx_empty_cond)
2439 {
2440         return (RTL_R8(tp, MCU) & RXTX_EMPTY) == RXTX_EMPTY;
2441 }
2442
2443 DECLARE_RTL_COND(rtl_rxtx_empty_cond_2)
2444 {
2445         /* IntrMitigate has new functionality on RTL8125 */
2446         return (RTL_R16(tp, IntrMitigate) & 0x0103) == 0x0103;
2447 }
2448
2449 static void rtl_wait_txrx_fifo_empty(struct rtl8169_private *tp)
2450 {
2451         switch (tp->mac_version) {
2452         case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_52:
2453                 rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 42);
2454                 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
2455                 break;
2456         case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_61:
2457                 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
2458                 break;
2459         case RTL_GIGA_MAC_VER_63:
2460                 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
2461                 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
2462                 rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond_2, 100, 42);
2463                 break;
2464         default:
2465                 break;
2466         }
2467 }
2468
2469 static void rtl_enable_rxdvgate(struct rtl8169_private *tp)
2470 {
2471         RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN);
2472         fsleep(2000);
2473         rtl_wait_txrx_fifo_empty(tp);
2474 }
2475
2476 static void rtl_set_tx_config_registers(struct rtl8169_private *tp)
2477 {
2478         u32 val = TX_DMA_BURST << TxDMAShift |
2479                   InterFrameGap << TxInterFrameGapShift;
2480
2481         if (rtl_is_8168evl_up(tp))
2482                 val |= TXCFG_AUTO_FIFO;
2483
2484         RTL_W32(tp, TxConfig, val);
2485 }
2486
2487 static void rtl_set_rx_max_size(struct rtl8169_private *tp)
2488 {
2489         /* Low hurts. Let's disable the filtering. */
2490         RTL_W16(tp, RxMaxSize, R8169_RX_BUF_SIZE + 1);
2491 }
2492
2493 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp)
2494 {
2495         /*
2496          * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
2497          * register to be written before TxDescAddrLow to work.
2498          * Switching from MMIO to I/O access fixes the issue as well.
2499          */
2500         RTL_W32(tp, TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
2501         RTL_W32(tp, TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
2502         RTL_W32(tp, RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
2503         RTL_W32(tp, RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
2504 }
2505
2506 static void rtl8169_set_magic_reg(struct rtl8169_private *tp)
2507 {
2508         u32 val;
2509
2510         if (tp->mac_version == RTL_GIGA_MAC_VER_05)
2511                 val = 0x000fff00;
2512         else if (tp->mac_version == RTL_GIGA_MAC_VER_06)
2513                 val = 0x00ffff00;
2514         else
2515                 return;
2516
2517         if (RTL_R8(tp, Config2) & PCI_Clock_66MHz)
2518                 val |= 0xff;
2519
2520         RTL_W32(tp, 0x7c, val);
2521 }
2522
2523 static void rtl_set_rx_mode(struct net_device *dev)
2524 {
2525         u32 rx_mode = AcceptBroadcast | AcceptMyPhys | AcceptMulticast;
2526         /* Multicast hash filter */
2527         u32 mc_filter[2] = { 0xffffffff, 0xffffffff };
2528         struct rtl8169_private *tp = netdev_priv(dev);
2529         u32 tmp;
2530
2531         if (dev->flags & IFF_PROMISC) {
2532                 rx_mode |= AcceptAllPhys;
2533         } else if (netdev_mc_count(dev) > MC_FILTER_LIMIT ||
2534                    dev->flags & IFF_ALLMULTI ||
2535                    tp->mac_version == RTL_GIGA_MAC_VER_35) {
2536                 /* accept all multicasts */
2537         } else if (netdev_mc_empty(dev)) {
2538                 rx_mode &= ~AcceptMulticast;
2539         } else {
2540                 struct netdev_hw_addr *ha;
2541
2542                 mc_filter[1] = mc_filter[0] = 0;
2543                 netdev_for_each_mc_addr(ha, dev) {
2544                         u32 bit_nr = eth_hw_addr_crc(ha) >> 26;
2545                         mc_filter[bit_nr >> 5] |= BIT(bit_nr & 31);
2546                 }
2547
2548                 if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
2549                         tmp = mc_filter[0];
2550                         mc_filter[0] = swab32(mc_filter[1]);
2551                         mc_filter[1] = swab32(tmp);
2552                 }
2553         }
2554
2555         RTL_W32(tp, MAR0 + 4, mc_filter[1]);
2556         RTL_W32(tp, MAR0 + 0, mc_filter[0]);
2557
2558         tmp = RTL_R32(tp, RxConfig);
2559         RTL_W32(tp, RxConfig, (tmp & ~RX_CONFIG_ACCEPT_OK_MASK) | rx_mode);
2560 }
2561
2562 DECLARE_RTL_COND(rtl_csiar_cond)
2563 {
2564         return RTL_R32(tp, CSIAR) & CSIAR_FLAG;
2565 }
2566
2567 static void rtl_csi_write(struct rtl8169_private *tp, int addr, int value)
2568 {
2569         u32 func = PCI_FUNC(tp->pci_dev->devfn);
2570
2571         RTL_W32(tp, CSIDR, value);
2572         RTL_W32(tp, CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
2573                 CSIAR_BYTE_ENABLE | func << 16);
2574
2575         rtl_loop_wait_low(tp, &rtl_csiar_cond, 10, 100);
2576 }
2577
2578 static u32 rtl_csi_read(struct rtl8169_private *tp, int addr)
2579 {
2580         u32 func = PCI_FUNC(tp->pci_dev->devfn);
2581
2582         RTL_W32(tp, CSIAR, (addr & CSIAR_ADDR_MASK) | func << 16 |
2583                 CSIAR_BYTE_ENABLE);
2584
2585         return rtl_loop_wait_high(tp, &rtl_csiar_cond, 10, 100) ?
2586                 RTL_R32(tp, CSIDR) : ~0;
2587 }
2588
2589 static void rtl_csi_access_enable(struct rtl8169_private *tp, u8 val)
2590 {
2591         struct pci_dev *pdev = tp->pci_dev;
2592         u32 csi;
2593
2594         /* According to Realtek the value at config space address 0x070f
2595          * controls the L0s/L1 entrance latency. We try standard ECAM access
2596          * first and if it fails fall back to CSI.
2597          */
2598         if (pdev->cfg_size > 0x070f &&
2599             pci_write_config_byte(pdev, 0x070f, val) == PCIBIOS_SUCCESSFUL)
2600                 return;
2601
2602         netdev_notice_once(tp->dev,
2603                 "No native access to PCI extended config space, falling back to CSI\n");
2604         csi = rtl_csi_read(tp, 0x070c) & 0x00ffffff;
2605         rtl_csi_write(tp, 0x070c, csi | val << 24);
2606 }
2607
2608 static void rtl_set_def_aspm_entry_latency(struct rtl8169_private *tp)
2609 {
2610         rtl_csi_access_enable(tp, 0x27);
2611 }
2612
2613 struct ephy_info {
2614         unsigned int offset;
2615         u16 mask;
2616         u16 bits;
2617 };
2618
2619 static void __rtl_ephy_init(struct rtl8169_private *tp,
2620                             const struct ephy_info *e, int len)
2621 {
2622         u16 w;
2623
2624         while (len-- > 0) {
2625                 w = (rtl_ephy_read(tp, e->offset) & ~e->mask) | e->bits;
2626                 rtl_ephy_write(tp, e->offset, w);
2627                 e++;
2628         }
2629 }
2630
2631 #define rtl_ephy_init(tp, a) __rtl_ephy_init(tp, a, ARRAY_SIZE(a))
2632
2633 static void rtl_disable_clock_request(struct rtl8169_private *tp)
2634 {
2635         pcie_capability_clear_word(tp->pci_dev, PCI_EXP_LNKCTL,
2636                                    PCI_EXP_LNKCTL_CLKREQ_EN);
2637 }
2638
2639 static void rtl_enable_clock_request(struct rtl8169_private *tp)
2640 {
2641         pcie_capability_set_word(tp->pci_dev, PCI_EXP_LNKCTL,
2642                                  PCI_EXP_LNKCTL_CLKREQ_EN);
2643 }
2644
2645 static void rtl_pcie_state_l2l3_disable(struct rtl8169_private *tp)
2646 {
2647         /* work around an issue when PCI reset occurs during L2/L3 state */
2648         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Rdy_to_L23);
2649 }
2650
2651 static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
2652 {
2653         /* Don't enable ASPM in the chip if OS can't control ASPM */
2654         if (enable && tp->aspm_manageable) {
2655                 RTL_W8(tp, Config5, RTL_R8(tp, Config5) | ASPM_en);
2656                 RTL_W8(tp, Config2, RTL_R8(tp, Config2) | ClkReqEn);
2657         } else {
2658                 RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~ClkReqEn);
2659                 RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~ASPM_en);
2660         }
2661
2662         udelay(10);
2663 }
2664
2665 static void rtl_set_fifo_size(struct rtl8169_private *tp, u16 rx_stat,
2666                               u16 tx_stat, u16 rx_dyn, u16 tx_dyn)
2667 {
2668         /* Usage of dynamic vs. static FIFO is controlled by bit
2669          * TXCFG_AUTO_FIFO. Exact meaning of FIFO values isn't known.
2670          */
2671         rtl_eri_write(tp, 0xc8, ERIAR_MASK_1111, (rx_stat << 16) | rx_dyn);
2672         rtl_eri_write(tp, 0xe8, ERIAR_MASK_1111, (tx_stat << 16) | tx_dyn);
2673 }
2674
2675 static void rtl8168g_set_pause_thresholds(struct rtl8169_private *tp,
2676                                           u8 low, u8 high)
2677 {
2678         /* FIFO thresholds for pause flow control */
2679         rtl_eri_write(tp, 0xcc, ERIAR_MASK_0001, low);
2680         rtl_eri_write(tp, 0xd0, ERIAR_MASK_0001, high);
2681 }
2682
2683 static void rtl_hw_start_8168b(struct rtl8169_private *tp)
2684 {
2685         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2686 }
2687
2688 static void __rtl_hw_start_8168cp(struct rtl8169_private *tp)
2689 {
2690         RTL_W8(tp, Config1, RTL_R8(tp, Config1) | Speed_down);
2691
2692         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2693
2694         rtl_disable_clock_request(tp);
2695 }
2696
2697 static void rtl_hw_start_8168cp_1(struct rtl8169_private *tp)
2698 {
2699         static const struct ephy_info e_info_8168cp[] = {
2700                 { 0x01, 0,      0x0001 },
2701                 { 0x02, 0x0800, 0x1000 },
2702                 { 0x03, 0,      0x0042 },
2703                 { 0x06, 0x0080, 0x0000 },
2704                 { 0x07, 0,      0x2000 }
2705         };
2706
2707         rtl_set_def_aspm_entry_latency(tp);
2708
2709         rtl_ephy_init(tp, e_info_8168cp);
2710
2711         __rtl_hw_start_8168cp(tp);
2712 }
2713
2714 static void rtl_hw_start_8168cp_2(struct rtl8169_private *tp)
2715 {
2716         rtl_set_def_aspm_entry_latency(tp);
2717
2718         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2719 }
2720
2721 static void rtl_hw_start_8168cp_3(struct rtl8169_private *tp)
2722 {
2723         rtl_set_def_aspm_entry_latency(tp);
2724
2725         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
2726
2727         /* Magic. */
2728         RTL_W8(tp, DBG_REG, 0x20);
2729 }
2730
2731 static void rtl_hw_start_8168c_1(struct rtl8169_private *tp)
2732 {
2733         static const struct ephy_info e_info_8168c_1[] = {
2734                 { 0x02, 0x0800, 0x1000 },
2735                 { 0x03, 0,      0x0002 },
2736                 { 0x06, 0x0080, 0x0000 }
2737         };
2738
2739         rtl_set_def_aspm_entry_latency(tp);
2740
2741         RTL_W8(tp, DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
2742
2743         rtl_ephy_init(tp, e_info_8168c_1);
2744
2745         __rtl_hw_start_8168cp(tp);
2746 }
2747
2748 static void rtl_hw_start_8168c_2(struct rtl8169_private *tp)
2749 {
2750         static const struct ephy_info e_info_8168c_2[] = {
2751                 { 0x01, 0,      0x0001 },
2752                 { 0x03, 0x0400, 0x0020 }
2753         };
2754
2755         rtl_set_def_aspm_entry_latency(tp);
2756
2757         rtl_ephy_init(tp, e_info_8168c_2);
2758
2759         __rtl_hw_start_8168cp(tp);
2760 }
2761
2762 static void rtl_hw_start_8168c_3(struct rtl8169_private *tp)
2763 {
2764         rtl_hw_start_8168c_2(tp);
2765 }
2766
2767 static void rtl_hw_start_8168c_4(struct rtl8169_private *tp)
2768 {
2769         rtl_set_def_aspm_entry_latency(tp);
2770
2771         __rtl_hw_start_8168cp(tp);
2772 }
2773
2774 static void rtl_hw_start_8168d(struct rtl8169_private *tp)
2775 {
2776         rtl_set_def_aspm_entry_latency(tp);
2777
2778         rtl_disable_clock_request(tp);
2779 }
2780
2781 static void rtl_hw_start_8168d_4(struct rtl8169_private *tp)
2782 {
2783         static const struct ephy_info e_info_8168d_4[] = {
2784                 { 0x0b, 0x0000, 0x0048 },
2785                 { 0x19, 0x0020, 0x0050 },
2786                 { 0x0c, 0x0100, 0x0020 },
2787                 { 0x10, 0x0004, 0x0000 },
2788         };
2789
2790         rtl_set_def_aspm_entry_latency(tp);
2791
2792         rtl_ephy_init(tp, e_info_8168d_4);
2793
2794         rtl_enable_clock_request(tp);
2795 }
2796
2797 static void rtl_hw_start_8168e_1(struct rtl8169_private *tp)
2798 {
2799         static const struct ephy_info e_info_8168e_1[] = {
2800                 { 0x00, 0x0200, 0x0100 },
2801                 { 0x00, 0x0000, 0x0004 },
2802                 { 0x06, 0x0002, 0x0001 },
2803                 { 0x06, 0x0000, 0x0030 },
2804                 { 0x07, 0x0000, 0x2000 },
2805                 { 0x00, 0x0000, 0x0020 },
2806                 { 0x03, 0x5800, 0x2000 },
2807                 { 0x03, 0x0000, 0x0001 },
2808                 { 0x01, 0x0800, 0x1000 },
2809                 { 0x07, 0x0000, 0x4000 },
2810                 { 0x1e, 0x0000, 0x2000 },
2811                 { 0x19, 0xffff, 0xfe6c },
2812                 { 0x0a, 0x0000, 0x0040 }
2813         };
2814
2815         rtl_set_def_aspm_entry_latency(tp);
2816
2817         rtl_ephy_init(tp, e_info_8168e_1);
2818
2819         rtl_disable_clock_request(tp);
2820
2821         /* Reset tx FIFO pointer */
2822         RTL_W32(tp, MISC, RTL_R32(tp, MISC) | TXPLA_RST);
2823         RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~TXPLA_RST);
2824
2825         RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2826 }
2827
2828 static void rtl_hw_start_8168e_2(struct rtl8169_private *tp)
2829 {
2830         static const struct ephy_info e_info_8168e_2[] = {
2831                 { 0x09, 0x0000, 0x0080 },
2832                 { 0x19, 0x0000, 0x0224 },
2833                 { 0x00, 0x0000, 0x0004 },
2834                 { 0x0c, 0x3df0, 0x0200 },
2835         };
2836
2837         rtl_set_def_aspm_entry_latency(tp);
2838
2839         rtl_ephy_init(tp, e_info_8168e_2);
2840
2841         rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
2842         rtl_eri_write(tp, 0xb8, ERIAR_MASK_1111, 0x0000);
2843         rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
2844         rtl_eri_set_bits(tp, 0x0d4, 0x1f00);
2845         rtl_eri_set_bits(tp, 0x1d0, BIT(1));
2846         rtl_reset_packet_filter(tp);
2847         rtl_eri_set_bits(tp, 0x1b0, BIT(4));
2848         rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
2849         rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x07ff0060);
2850
2851         rtl_disable_clock_request(tp);
2852
2853         RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
2854
2855         rtl8168_config_eee_mac(tp);
2856
2857         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
2858         RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
2859         RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2860
2861         rtl_hw_aspm_clkreq_enable(tp, true);
2862 }
2863
2864 static void rtl_hw_start_8168f(struct rtl8169_private *tp)
2865 {
2866         rtl_set_def_aspm_entry_latency(tp);
2867
2868         rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
2869         rtl_eri_write(tp, 0xb8, ERIAR_MASK_1111, 0x0000);
2870         rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
2871         rtl_reset_packet_filter(tp);
2872         rtl_eri_set_bits(tp, 0x1b0, BIT(4));
2873         rtl_eri_set_bits(tp, 0x1d0, BIT(4) | BIT(1));
2874         rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
2875         rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x00000060);
2876
2877         rtl_disable_clock_request(tp);
2878
2879         RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
2880         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
2881         RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
2882         RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
2883
2884         rtl8168_config_eee_mac(tp);
2885 }
2886
2887 static void rtl_hw_start_8168f_1(struct rtl8169_private *tp)
2888 {
2889         static const struct ephy_info e_info_8168f_1[] = {
2890                 { 0x06, 0x00c0, 0x0020 },
2891                 { 0x08, 0x0001, 0x0002 },
2892                 { 0x09, 0x0000, 0x0080 },
2893                 { 0x19, 0x0000, 0x0224 },
2894                 { 0x00, 0x0000, 0x0008 },
2895                 { 0x0c, 0x3df0, 0x0200 },
2896         };
2897
2898         rtl_hw_start_8168f(tp);
2899
2900         rtl_ephy_init(tp, e_info_8168f_1);
2901
2902         rtl_eri_set_bits(tp, 0x0d4, 0x1f00);
2903 }
2904
2905 static void rtl_hw_start_8411(struct rtl8169_private *tp)
2906 {
2907         static const struct ephy_info e_info_8168f_1[] = {
2908                 { 0x06, 0x00c0, 0x0020 },
2909                 { 0x0f, 0xffff, 0x5200 },
2910                 { 0x19, 0x0000, 0x0224 },
2911                 { 0x00, 0x0000, 0x0008 },
2912                 { 0x0c, 0x3df0, 0x0200 },
2913         };
2914
2915         rtl_hw_start_8168f(tp);
2916         rtl_pcie_state_l2l3_disable(tp);
2917
2918         rtl_ephy_init(tp, e_info_8168f_1);
2919
2920         rtl_eri_set_bits(tp, 0x0d4, 0x0c00);
2921 }
2922
2923 static void rtl_hw_start_8168g(struct rtl8169_private *tp)
2924 {
2925         rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
2926         rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
2927
2928         rtl_set_def_aspm_entry_latency(tp);
2929
2930         rtl_reset_packet_filter(tp);
2931         rtl_eri_write(tp, 0x2f8, ERIAR_MASK_0011, 0x1d8f);
2932
2933         RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
2934
2935         rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
2936         rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
2937         rtl_eri_set_bits(tp, 0x0d4, 0x1f80);
2938
2939         rtl8168_config_eee_mac(tp);
2940
2941         rtl_w0w1_eri(tp, 0x2fc, 0x01, 0x06);
2942         rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
2943
2944         rtl_pcie_state_l2l3_disable(tp);
2945 }
2946
2947 static void rtl_hw_start_8168g_1(struct rtl8169_private *tp)
2948 {
2949         static const struct ephy_info e_info_8168g_1[] = {
2950                 { 0x00, 0x0008, 0x0000 },
2951                 { 0x0c, 0x3ff0, 0x0820 },
2952                 { 0x1e, 0x0000, 0x0001 },
2953                 { 0x19, 0x8000, 0x0000 }
2954         };
2955
2956         rtl_hw_start_8168g(tp);
2957
2958         /* disable aspm and clock request before access ephy */
2959         rtl_hw_aspm_clkreq_enable(tp, false);
2960         rtl_ephy_init(tp, e_info_8168g_1);
2961         rtl_hw_aspm_clkreq_enable(tp, true);
2962 }
2963
2964 static void rtl_hw_start_8168g_2(struct rtl8169_private *tp)
2965 {
2966         static const struct ephy_info e_info_8168g_2[] = {
2967                 { 0x00, 0x0008, 0x0000 },
2968                 { 0x0c, 0x3ff0, 0x0820 },
2969                 { 0x19, 0xffff, 0x7c00 },
2970                 { 0x1e, 0xffff, 0x20eb },
2971                 { 0x0d, 0xffff, 0x1666 },
2972                 { 0x00, 0xffff, 0x10a3 },
2973                 { 0x06, 0xffff, 0xf050 },
2974                 { 0x04, 0x0000, 0x0010 },
2975                 { 0x1d, 0x4000, 0x0000 },
2976         };
2977
2978         rtl_hw_start_8168g(tp);
2979
2980         /* disable aspm and clock request before access ephy */
2981         rtl_hw_aspm_clkreq_enable(tp, false);
2982         rtl_ephy_init(tp, e_info_8168g_2);
2983 }
2984
2985 static void rtl_hw_start_8411_2(struct rtl8169_private *tp)
2986 {
2987         static const struct ephy_info e_info_8411_2[] = {
2988                 { 0x00, 0x0008, 0x0000 },
2989                 { 0x0c, 0x37d0, 0x0820 },
2990                 { 0x1e, 0x0000, 0x0001 },
2991                 { 0x19, 0x8021, 0x0000 },
2992                 { 0x1e, 0x0000, 0x2000 },
2993                 { 0x0d, 0x0100, 0x0200 },
2994                 { 0x00, 0x0000, 0x0080 },
2995                 { 0x06, 0x0000, 0x0010 },
2996                 { 0x04, 0x0000, 0x0010 },
2997                 { 0x1d, 0x0000, 0x4000 },
2998         };
2999
3000         rtl_hw_start_8168g(tp);
3001
3002         /* disable aspm and clock request before access ephy */
3003         rtl_hw_aspm_clkreq_enable(tp, false);
3004         rtl_ephy_init(tp, e_info_8411_2);
3005
3006         /* The following Realtek-provided magic fixes an issue with the RX unit
3007          * getting confused after the PHY having been powered-down.
3008          */
3009         r8168_mac_ocp_write(tp, 0xFC28, 0x0000);
3010         r8168_mac_ocp_write(tp, 0xFC2A, 0x0000);
3011         r8168_mac_ocp_write(tp, 0xFC2C, 0x0000);
3012         r8168_mac_ocp_write(tp, 0xFC2E, 0x0000);
3013         r8168_mac_ocp_write(tp, 0xFC30, 0x0000);
3014         r8168_mac_ocp_write(tp, 0xFC32, 0x0000);
3015         r8168_mac_ocp_write(tp, 0xFC34, 0x0000);
3016         r8168_mac_ocp_write(tp, 0xFC36, 0x0000);
3017         mdelay(3);
3018         r8168_mac_ocp_write(tp, 0xFC26, 0x0000);
3019
3020         r8168_mac_ocp_write(tp, 0xF800, 0xE008);
3021         r8168_mac_ocp_write(tp, 0xF802, 0xE00A);
3022         r8168_mac_ocp_write(tp, 0xF804, 0xE00C);
3023         r8168_mac_ocp_write(tp, 0xF806, 0xE00E);
3024         r8168_mac_ocp_write(tp, 0xF808, 0xE027);
3025         r8168_mac_ocp_write(tp, 0xF80A, 0xE04F);
3026         r8168_mac_ocp_write(tp, 0xF80C, 0xE05E);
3027         r8168_mac_ocp_write(tp, 0xF80E, 0xE065);
3028         r8168_mac_ocp_write(tp, 0xF810, 0xC602);
3029         r8168_mac_ocp_write(tp, 0xF812, 0xBE00);
3030         r8168_mac_ocp_write(tp, 0xF814, 0x0000);
3031         r8168_mac_ocp_write(tp, 0xF816, 0xC502);
3032         r8168_mac_ocp_write(tp, 0xF818, 0xBD00);
3033         r8168_mac_ocp_write(tp, 0xF81A, 0x074C);
3034         r8168_mac_ocp_write(tp, 0xF81C, 0xC302);
3035         r8168_mac_ocp_write(tp, 0xF81E, 0xBB00);
3036         r8168_mac_ocp_write(tp, 0xF820, 0x080A);
3037         r8168_mac_ocp_write(tp, 0xF822, 0x6420);
3038         r8168_mac_ocp_write(tp, 0xF824, 0x48C2);
3039         r8168_mac_ocp_write(tp, 0xF826, 0x8C20);
3040         r8168_mac_ocp_write(tp, 0xF828, 0xC516);
3041         r8168_mac_ocp_write(tp, 0xF82A, 0x64A4);
3042         r8168_mac_ocp_write(tp, 0xF82C, 0x49C0);
3043         r8168_mac_ocp_write(tp, 0xF82E, 0xF009);
3044         r8168_mac_ocp_write(tp, 0xF830, 0x74A2);
3045         r8168_mac_ocp_write(tp, 0xF832, 0x8CA5);
3046         r8168_mac_ocp_write(tp, 0xF834, 0x74A0);
3047         r8168_mac_ocp_write(tp, 0xF836, 0xC50E);
3048         r8168_mac_ocp_write(tp, 0xF838, 0x9CA2);
3049         r8168_mac_ocp_write(tp, 0xF83A, 0x1C11);
3050         r8168_mac_ocp_write(tp, 0xF83C, 0x9CA0);
3051         r8168_mac_ocp_write(tp, 0xF83E, 0xE006);
3052         r8168_mac_ocp_write(tp, 0xF840, 0x74F8);
3053         r8168_mac_ocp_write(tp, 0xF842, 0x48C4);
3054         r8168_mac_ocp_write(tp, 0xF844, 0x8CF8);
3055         r8168_mac_ocp_write(tp, 0xF846, 0xC404);
3056         r8168_mac_ocp_write(tp, 0xF848, 0xBC00);
3057         r8168_mac_ocp_write(tp, 0xF84A, 0xC403);
3058         r8168_mac_ocp_write(tp, 0xF84C, 0xBC00);
3059         r8168_mac_ocp_write(tp, 0xF84E, 0x0BF2);
3060         r8168_mac_ocp_write(tp, 0xF850, 0x0C0A);
3061         r8168_mac_ocp_write(tp, 0xF852, 0xE434);
3062         r8168_mac_ocp_write(tp, 0xF854, 0xD3C0);
3063         r8168_mac_ocp_write(tp, 0xF856, 0x49D9);
3064         r8168_mac_ocp_write(tp, 0xF858, 0xF01F);
3065         r8168_mac_ocp_write(tp, 0xF85A, 0xC526);
3066         r8168_mac_ocp_write(tp, 0xF85C, 0x64A5);
3067         r8168_mac_ocp_write(tp, 0xF85E, 0x1400);
3068         r8168_mac_ocp_write(tp, 0xF860, 0xF007);
3069         r8168_mac_ocp_write(tp, 0xF862, 0x0C01);
3070         r8168_mac_ocp_write(tp, 0xF864, 0x8CA5);
3071         r8168_mac_ocp_write(tp, 0xF866, 0x1C15);
3072         r8168_mac_ocp_write(tp, 0xF868, 0xC51B);
3073         r8168_mac_ocp_write(tp, 0xF86A, 0x9CA0);
3074         r8168_mac_ocp_write(tp, 0xF86C, 0xE013);
3075         r8168_mac_ocp_write(tp, 0xF86E, 0xC519);
3076         r8168_mac_ocp_write(tp, 0xF870, 0x74A0);
3077         r8168_mac_ocp_write(tp, 0xF872, 0x48C4);
3078         r8168_mac_ocp_write(tp, 0xF874, 0x8CA0);
3079         r8168_mac_ocp_write(tp, 0xF876, 0xC516);
3080         r8168_mac_ocp_write(tp, 0xF878, 0x74A4);
3081         r8168_mac_ocp_write(tp, 0xF87A, 0x48C8);
3082         r8168_mac_ocp_write(tp, 0xF87C, 0x48CA);
3083         r8168_mac_ocp_write(tp, 0xF87E, 0x9CA4);
3084         r8168_mac_ocp_write(tp, 0xF880, 0xC512);
3085         r8168_mac_ocp_write(tp, 0xF882, 0x1B00);
3086         r8168_mac_ocp_write(tp, 0xF884, 0x9BA0);
3087         r8168_mac_ocp_write(tp, 0xF886, 0x1B1C);
3088         r8168_mac_ocp_write(tp, 0xF888, 0x483F);
3089         r8168_mac_ocp_write(tp, 0xF88A, 0x9BA2);
3090         r8168_mac_ocp_write(tp, 0xF88C, 0x1B04);
3091         r8168_mac_ocp_write(tp, 0xF88E, 0xC508);
3092         r8168_mac_ocp_write(tp, 0xF890, 0x9BA0);
3093         r8168_mac_ocp_write(tp, 0xF892, 0xC505);
3094         r8168_mac_ocp_write(tp, 0xF894, 0xBD00);
3095         r8168_mac_ocp_write(tp, 0xF896, 0xC502);
3096         r8168_mac_ocp_write(tp, 0xF898, 0xBD00);
3097         r8168_mac_ocp_write(tp, 0xF89A, 0x0300);
3098         r8168_mac_ocp_write(tp, 0xF89C, 0x051E);
3099         r8168_mac_ocp_write(tp, 0xF89E, 0xE434);
3100         r8168_mac_ocp_write(tp, 0xF8A0, 0xE018);
3101         r8168_mac_ocp_write(tp, 0xF8A2, 0xE092);
3102         r8168_mac_ocp_write(tp, 0xF8A4, 0xDE20);
3103         r8168_mac_ocp_write(tp, 0xF8A6, 0xD3C0);
3104         r8168_mac_ocp_write(tp, 0xF8A8, 0xC50F);
3105         r8168_mac_ocp_write(tp, 0xF8AA, 0x76A4);
3106         r8168_mac_ocp_write(tp, 0xF8AC, 0x49E3);
3107         r8168_mac_ocp_write(tp, 0xF8AE, 0xF007);
3108         r8168_mac_ocp_write(tp, 0xF8B0, 0x49C0);
3109         r8168_mac_ocp_write(tp, 0xF8B2, 0xF103);
3110         r8168_mac_ocp_write(tp, 0xF8B4, 0xC607);
3111         r8168_mac_ocp_write(tp, 0xF8B6, 0xBE00);
3112         r8168_mac_ocp_write(tp, 0xF8B8, 0xC606);
3113         r8168_mac_ocp_write(tp, 0xF8BA, 0xBE00);
3114         r8168_mac_ocp_write(tp, 0xF8BC, 0xC602);
3115         r8168_mac_ocp_write(tp, 0xF8BE, 0xBE00);
3116         r8168_mac_ocp_write(tp, 0xF8C0, 0x0C4C);
3117         r8168_mac_ocp_write(tp, 0xF8C2, 0x0C28);
3118         r8168_mac_ocp_write(tp, 0xF8C4, 0x0C2C);
3119         r8168_mac_ocp_write(tp, 0xF8C6, 0xDC00);
3120         r8168_mac_ocp_write(tp, 0xF8C8, 0xC707);
3121         r8168_mac_ocp_write(tp, 0xF8CA, 0x1D00);
3122         r8168_mac_ocp_write(tp, 0xF8CC, 0x8DE2);
3123         r8168_mac_ocp_write(tp, 0xF8CE, 0x48C1);
3124         r8168_mac_ocp_write(tp, 0xF8D0, 0xC502);
3125         r8168_mac_ocp_write(tp, 0xF8D2, 0xBD00);
3126         r8168_mac_ocp_write(tp, 0xF8D4, 0x00AA);
3127         r8168_mac_ocp_write(tp, 0xF8D6, 0xE0C0);
3128         r8168_mac_ocp_write(tp, 0xF8D8, 0xC502);
3129         r8168_mac_ocp_write(tp, 0xF8DA, 0xBD00);
3130         r8168_mac_ocp_write(tp, 0xF8DC, 0x0132);
3131
3132         r8168_mac_ocp_write(tp, 0xFC26, 0x8000);
3133
3134         r8168_mac_ocp_write(tp, 0xFC2A, 0x0743);
3135         r8168_mac_ocp_write(tp, 0xFC2C, 0x0801);
3136         r8168_mac_ocp_write(tp, 0xFC2E, 0x0BE9);
3137         r8168_mac_ocp_write(tp, 0xFC30, 0x02FD);
3138         r8168_mac_ocp_write(tp, 0xFC32, 0x0C25);
3139         r8168_mac_ocp_write(tp, 0xFC34, 0x00A9);
3140         r8168_mac_ocp_write(tp, 0xFC36, 0x012D);
3141
3142         rtl_hw_aspm_clkreq_enable(tp, true);
3143 }
3144
3145 static void rtl_hw_start_8168h_1(struct rtl8169_private *tp)
3146 {
3147         static const struct ephy_info e_info_8168h_1[] = {
3148                 { 0x1e, 0x0800, 0x0001 },
3149                 { 0x1d, 0x0000, 0x0800 },
3150                 { 0x05, 0xffff, 0x2089 },
3151                 { 0x06, 0xffff, 0x5881 },
3152                 { 0x04, 0xffff, 0x854a },
3153                 { 0x01, 0xffff, 0x068b }
3154         };
3155         int rg_saw_cnt;
3156
3157         /* disable aspm and clock request before access ephy */
3158         rtl_hw_aspm_clkreq_enable(tp, false);
3159         rtl_ephy_init(tp, e_info_8168h_1);
3160
3161         rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3162         rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
3163
3164         rtl_set_def_aspm_entry_latency(tp);
3165
3166         rtl_reset_packet_filter(tp);
3167
3168         rtl_eri_set_bits(tp, 0xd4, 0x1f00);
3169         rtl_eri_set_bits(tp, 0xdc, 0x001c);
3170
3171         rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3172
3173         RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3174
3175         rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3176         rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3177
3178         rtl8168_config_eee_mac(tp);
3179
3180         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3181         RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3182
3183         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3184
3185         rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
3186
3187         rtl_pcie_state_l2l3_disable(tp);
3188
3189         rg_saw_cnt = phy_read_paged(tp->phydev, 0x0c42, 0x13) & 0x3fff;
3190         if (rg_saw_cnt > 0) {
3191                 u16 sw_cnt_1ms_ini;
3192
3193                 sw_cnt_1ms_ini = 16000000/rg_saw_cnt;
3194                 sw_cnt_1ms_ini &= 0x0fff;
3195                 r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
3196         }
3197
3198         r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
3199         r8168_mac_ocp_modify(tp, 0xe052, 0x6000, 0x8008);
3200         r8168_mac_ocp_modify(tp, 0xe0d6, 0x01ff, 0x017f);
3201         r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
3202
3203         r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
3204         r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
3205         r8168_mac_ocp_write(tp, 0xc094, 0x0000);
3206         r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
3207
3208         rtl_hw_aspm_clkreq_enable(tp, true);
3209 }
3210
3211 static void rtl_hw_start_8168ep(struct rtl8169_private *tp)
3212 {
3213         rtl8168ep_stop_cmac(tp);
3214
3215         rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3216         rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
3217
3218         rtl_set_def_aspm_entry_latency(tp);
3219
3220         rtl_reset_packet_filter(tp);
3221
3222         rtl_eri_set_bits(tp, 0xd4, 0x1f80);
3223
3224         rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3225
3226         RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3227
3228         rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3229         rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3230
3231         rtl8168_config_eee_mac(tp);
3232
3233         rtl_w0w1_eri(tp, 0x2fc, 0x01, 0x06);
3234
3235         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3236
3237         rtl_pcie_state_l2l3_disable(tp);
3238 }
3239
3240 static void rtl_hw_start_8168ep_1(struct rtl8169_private *tp)
3241 {
3242         static const struct ephy_info e_info_8168ep_1[] = {
3243                 { 0x00, 0xffff, 0x10ab },
3244                 { 0x06, 0xffff, 0xf030 },
3245                 { 0x08, 0xffff, 0x2006 },
3246                 { 0x0d, 0xffff, 0x1666 },
3247                 { 0x0c, 0x3ff0, 0x0000 }
3248         };
3249
3250         /* disable aspm and clock request before access ephy */
3251         rtl_hw_aspm_clkreq_enable(tp, false);
3252         rtl_ephy_init(tp, e_info_8168ep_1);
3253
3254         rtl_hw_start_8168ep(tp);
3255
3256         rtl_hw_aspm_clkreq_enable(tp, true);
3257 }
3258
3259 static void rtl_hw_start_8168ep_2(struct rtl8169_private *tp)
3260 {
3261         static const struct ephy_info e_info_8168ep_2[] = {
3262                 { 0x00, 0xffff, 0x10a3 },
3263                 { 0x19, 0xffff, 0xfc00 },
3264                 { 0x1e, 0xffff, 0x20ea }
3265         };
3266
3267         /* disable aspm and clock request before access ephy */
3268         rtl_hw_aspm_clkreq_enable(tp, false);
3269         rtl_ephy_init(tp, e_info_8168ep_2);
3270
3271         rtl_hw_start_8168ep(tp);
3272
3273         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3274         RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3275
3276         rtl_hw_aspm_clkreq_enable(tp, true);
3277 }
3278
3279 static void rtl_hw_start_8168ep_3(struct rtl8169_private *tp)
3280 {
3281         static const struct ephy_info e_info_8168ep_3[] = {
3282                 { 0x00, 0x0000, 0x0080 },
3283                 { 0x0d, 0x0100, 0x0200 },
3284                 { 0x19, 0x8021, 0x0000 },
3285                 { 0x1e, 0x0000, 0x2000 },
3286         };
3287
3288         /* disable aspm and clock request before access ephy */
3289         rtl_hw_aspm_clkreq_enable(tp, false);
3290         rtl_ephy_init(tp, e_info_8168ep_3);
3291
3292         rtl_hw_start_8168ep(tp);
3293
3294         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3295         RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3296
3297         r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x0271);
3298         r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000);
3299         r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080);
3300
3301         rtl_hw_aspm_clkreq_enable(tp, true);
3302 }
3303
3304 static void rtl_hw_start_8117(struct rtl8169_private *tp)
3305 {
3306         static const struct ephy_info e_info_8117[] = {
3307                 { 0x19, 0x0040, 0x1100 },
3308                 { 0x59, 0x0040, 0x1100 },
3309         };
3310         int rg_saw_cnt;
3311
3312         rtl8168ep_stop_cmac(tp);
3313
3314         /* disable aspm and clock request before access ephy */
3315         rtl_hw_aspm_clkreq_enable(tp, false);
3316         rtl_ephy_init(tp, e_info_8117);
3317
3318         rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
3319         rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
3320
3321         rtl_set_def_aspm_entry_latency(tp);
3322
3323         rtl_reset_packet_filter(tp);
3324
3325         rtl_eri_set_bits(tp, 0xd4, 0x1f90);
3326
3327         rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
3328
3329         RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3330
3331         rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3332         rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3333
3334         rtl8168_config_eee_mac(tp);
3335
3336         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3337         RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
3338
3339         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
3340
3341         rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
3342
3343         rtl_pcie_state_l2l3_disable(tp);
3344
3345         rg_saw_cnt = phy_read_paged(tp->phydev, 0x0c42, 0x13) & 0x3fff;
3346         if (rg_saw_cnt > 0) {
3347                 u16 sw_cnt_1ms_ini;
3348
3349                 sw_cnt_1ms_ini = (16000000 / rg_saw_cnt) & 0x0fff;
3350                 r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
3351         }
3352
3353         r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
3354         r8168_mac_ocp_write(tp, 0xea80, 0x0003);
3355         r8168_mac_ocp_modify(tp, 0xe052, 0x0000, 0x0009);
3356         r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
3357
3358         r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
3359         r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
3360         r8168_mac_ocp_write(tp, 0xc094, 0x0000);
3361         r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
3362
3363         /* firmware is for MAC only */
3364         r8169_apply_firmware(tp);
3365
3366         rtl_hw_aspm_clkreq_enable(tp, true);
3367 }
3368
3369 static void rtl_hw_start_8102e_1(struct rtl8169_private *tp)
3370 {
3371         static const struct ephy_info e_info_8102e_1[] = {
3372                 { 0x01, 0, 0x6e65 },
3373                 { 0x02, 0, 0x091f },
3374                 { 0x03, 0, 0xc2f9 },
3375                 { 0x06, 0, 0xafb5 },
3376                 { 0x07, 0, 0x0e00 },
3377                 { 0x19, 0, 0xec80 },
3378                 { 0x01, 0, 0x2e65 },
3379                 { 0x01, 0, 0x6e65 }
3380         };
3381         u8 cfg1;
3382
3383         rtl_set_def_aspm_entry_latency(tp);
3384
3385         RTL_W8(tp, DBG_REG, FIX_NAK_1);
3386
3387         RTL_W8(tp, Config1,
3388                LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
3389         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
3390
3391         cfg1 = RTL_R8(tp, Config1);
3392         if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
3393                 RTL_W8(tp, Config1, cfg1 & ~LEDS0);
3394
3395         rtl_ephy_init(tp, e_info_8102e_1);
3396 }
3397
3398 static void rtl_hw_start_8102e_2(struct rtl8169_private *tp)
3399 {
3400         rtl_set_def_aspm_entry_latency(tp);
3401
3402         RTL_W8(tp, Config1, MEMMAP | IOMAP | VPD | PMEnable);
3403         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
3404 }
3405
3406 static void rtl_hw_start_8102e_3(struct rtl8169_private *tp)
3407 {
3408         rtl_hw_start_8102e_2(tp);
3409
3410         rtl_ephy_write(tp, 0x03, 0xc2f9);
3411 }
3412
3413 static void rtl_hw_start_8401(struct rtl8169_private *tp)
3414 {
3415         static const struct ephy_info e_info_8401[] = {
3416                 { 0x01, 0xffff, 0x6fe5 },
3417                 { 0x03, 0xffff, 0x0599 },
3418                 { 0x06, 0xffff, 0xaf25 },
3419                 { 0x07, 0xffff, 0x8e68 },
3420         };
3421
3422         rtl_ephy_init(tp, e_info_8401);
3423         RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
3424 }
3425
3426 static void rtl_hw_start_8105e_1(struct rtl8169_private *tp)
3427 {
3428         static const struct ephy_info e_info_8105e_1[] = {
3429                 { 0x07, 0, 0x4000 },
3430                 { 0x19, 0, 0x0200 },
3431                 { 0x19, 0, 0x0020 },
3432                 { 0x1e, 0, 0x2000 },
3433                 { 0x03, 0, 0x0001 },
3434                 { 0x19, 0, 0x0100 },
3435                 { 0x19, 0, 0x0004 },
3436                 { 0x0a, 0, 0x0020 }
3437         };
3438
3439         /* Force LAN exit from ASPM if Rx/Tx are not idle */
3440         RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3441
3442         /* Disable Early Tally Counter */
3443         RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) & ~0x010000);
3444
3445         RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
3446         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
3447
3448         rtl_ephy_init(tp, e_info_8105e_1);
3449
3450         rtl_pcie_state_l2l3_disable(tp);
3451 }
3452
3453 static void rtl_hw_start_8105e_2(struct rtl8169_private *tp)
3454 {
3455         rtl_hw_start_8105e_1(tp);
3456         rtl_ephy_write(tp, 0x1e, rtl_ephy_read(tp, 0x1e) | 0x8000);
3457 }
3458
3459 static void rtl_hw_start_8402(struct rtl8169_private *tp)
3460 {
3461         static const struct ephy_info e_info_8402[] = {
3462                 { 0x19, 0xffff, 0xff64 },
3463                 { 0x1e, 0, 0x4000 }
3464         };
3465
3466         rtl_set_def_aspm_entry_latency(tp);
3467
3468         /* Force LAN exit from ASPM if Rx/Tx are not idle */
3469         RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3470
3471         RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
3472
3473         rtl_ephy_init(tp, e_info_8402);
3474
3475         rtl_set_fifo_size(tp, 0x00, 0x00, 0x02, 0x06);
3476         rtl_reset_packet_filter(tp);
3477         rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
3478         rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
3479         rtl_w0w1_eri(tp, 0x0d4, 0x0e00, 0xff00);
3480
3481         /* disable EEE */
3482         rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
3483
3484         rtl_pcie_state_l2l3_disable(tp);
3485 }
3486
3487 static void rtl_hw_start_8106(struct rtl8169_private *tp)
3488 {
3489         rtl_hw_aspm_clkreq_enable(tp, false);
3490
3491         /* Force LAN exit from ASPM if Rx/Tx are not idle */
3492         RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
3493
3494         RTL_W32(tp, MISC, (RTL_R32(tp, MISC) | DISABLE_LAN_EN) & ~EARLY_TALLY_EN);
3495         RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
3496         RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
3497
3498         rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
3499
3500         /* disable EEE */
3501         rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
3502
3503         rtl_pcie_state_l2l3_disable(tp);
3504         rtl_hw_aspm_clkreq_enable(tp, true);
3505 }
3506
3507 DECLARE_RTL_COND(rtl_mac_ocp_e00e_cond)
3508 {
3509         return r8168_mac_ocp_read(tp, 0xe00e) & BIT(13);
3510 }
3511
3512 static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
3513 {
3514         rtl_pcie_state_l2l3_disable(tp);
3515
3516         RTL_W16(tp, 0x382, 0x221b);
3517         RTL_W8(tp, 0x4500, 0);
3518         RTL_W16(tp, 0x4800, 0);
3519
3520         /* disable UPS */
3521         r8168_mac_ocp_modify(tp, 0xd40a, 0x0010, 0x0000);
3522
3523         RTL_W8(tp, Config1, RTL_R8(tp, Config1) & ~0x10);
3524
3525         r8168_mac_ocp_write(tp, 0xc140, 0xffff);
3526         r8168_mac_ocp_write(tp, 0xc142, 0xffff);
3527
3528         r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x03a9);
3529         r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000);
3530         r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080);
3531
3532         /* disable new tx descriptor format */
3533         r8168_mac_ocp_modify(tp, 0xeb58, 0x0001, 0x0000);
3534
3535         if (tp->mac_version == RTL_GIGA_MAC_VER_63)
3536                 r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0200);
3537         else
3538                 r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0400);
3539
3540         if (tp->mac_version == RTL_GIGA_MAC_VER_63)
3541                 r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0000);
3542         else
3543                 r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0020);
3544
3545         r8168_mac_ocp_modify(tp, 0xc0b4, 0x0000, 0x000c);
3546         r8168_mac_ocp_modify(tp, 0xeb6a, 0x00ff, 0x0033);
3547         r8168_mac_ocp_modify(tp, 0xeb50, 0x03e0, 0x0040);
3548         r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0030);
3549         r8168_mac_ocp_modify(tp, 0xe040, 0x1000, 0x0000);
3550         r8168_mac_ocp_modify(tp, 0xea1c, 0x0003, 0x0001);
3551         r8168_mac_ocp_modify(tp, 0xe0c0, 0x4f0f, 0x4403);
3552         r8168_mac_ocp_modify(tp, 0xe052, 0x0080, 0x0068);
3553         r8168_mac_ocp_modify(tp, 0xc0ac, 0x0080, 0x1f00);
3554         r8168_mac_ocp_modify(tp, 0xd430, 0x0fff, 0x047f);
3555
3556         r8168_mac_ocp_modify(tp, 0xea1c, 0x0004, 0x0000);
3557         r8168_mac_ocp_modify(tp, 0xeb54, 0x0000, 0x0001);
3558         udelay(1);
3559         r8168_mac_ocp_modify(tp, 0xeb54, 0x0001, 0x0000);
3560         RTL_W16(tp, 0x1880, RTL_R16(tp, 0x1880) & ~0x0030);
3561
3562         r8168_mac_ocp_write(tp, 0xe098, 0xc302);
3563
3564         rtl_loop_wait_low(tp, &rtl_mac_ocp_e00e_cond, 1000, 10);
3565
3566         if (tp->mac_version == RTL_GIGA_MAC_VER_63)
3567                 rtl8125b_config_eee_mac(tp);
3568         else
3569                 rtl8125a_config_eee_mac(tp);
3570
3571         RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
3572         udelay(10);
3573 }
3574
3575 static void rtl_hw_start_8125a_1(struct rtl8169_private *tp)
3576 {
3577         static const struct ephy_info e_info_8125a_1[] = {
3578                 { 0x01, 0xffff, 0xa812 },
3579                 { 0x09, 0xffff, 0x520c },
3580                 { 0x04, 0xffff, 0xd000 },
3581                 { 0x0d, 0xffff, 0xf702 },
3582                 { 0x0a, 0xffff, 0x8653 },
3583                 { 0x06, 0xffff, 0x001e },
3584                 { 0x08, 0xffff, 0x3595 },
3585                 { 0x20, 0xffff, 0x9455 },
3586                 { 0x21, 0xffff, 0x99ff },
3587                 { 0x02, 0xffff, 0x6046 },
3588                 { 0x29, 0xffff, 0xfe00 },
3589                 { 0x23, 0xffff, 0xab62 },
3590
3591                 { 0x41, 0xffff, 0xa80c },
3592                 { 0x49, 0xffff, 0x520c },
3593                 { 0x44, 0xffff, 0xd000 },
3594                 { 0x4d, 0xffff, 0xf702 },
3595                 { 0x4a, 0xffff, 0x8653 },
3596                 { 0x46, 0xffff, 0x001e },
3597                 { 0x48, 0xffff, 0x3595 },
3598                 { 0x60, 0xffff, 0x9455 },
3599                 { 0x61, 0xffff, 0x99ff },
3600                 { 0x42, 0xffff, 0x6046 },
3601                 { 0x69, 0xffff, 0xfe00 },
3602                 { 0x63, 0xffff, 0xab62 },
3603         };
3604
3605         rtl_set_def_aspm_entry_latency(tp);
3606
3607         /* disable aspm and clock request before access ephy */
3608         rtl_hw_aspm_clkreq_enable(tp, false);
3609         rtl_ephy_init(tp, e_info_8125a_1);
3610
3611         rtl_hw_start_8125_common(tp);
3612         rtl_hw_aspm_clkreq_enable(tp, true);
3613 }
3614
3615 static void rtl_hw_start_8125a_2(struct rtl8169_private *tp)
3616 {
3617         static const struct ephy_info e_info_8125a_2[] = {
3618                 { 0x04, 0xffff, 0xd000 },
3619                 { 0x0a, 0xffff, 0x8653 },
3620                 { 0x23, 0xffff, 0xab66 },
3621                 { 0x20, 0xffff, 0x9455 },
3622                 { 0x21, 0xffff, 0x99ff },
3623                 { 0x29, 0xffff, 0xfe04 },
3624
3625                 { 0x44, 0xffff, 0xd000 },
3626                 { 0x4a, 0xffff, 0x8653 },
3627                 { 0x63, 0xffff, 0xab66 },
3628                 { 0x60, 0xffff, 0x9455 },
3629                 { 0x61, 0xffff, 0x99ff },
3630                 { 0x69, 0xffff, 0xfe04 },
3631         };
3632
3633         rtl_set_def_aspm_entry_latency(tp);
3634
3635         /* disable aspm and clock request before access ephy */
3636         rtl_hw_aspm_clkreq_enable(tp, false);
3637         rtl_ephy_init(tp, e_info_8125a_2);
3638
3639         rtl_hw_start_8125_common(tp);
3640         rtl_hw_aspm_clkreq_enable(tp, true);
3641 }
3642
3643 static void rtl_hw_start_8125b(struct rtl8169_private *tp)
3644 {
3645         static const struct ephy_info e_info_8125b[] = {
3646                 { 0x0b, 0xffff, 0xa908 },
3647                 { 0x1e, 0xffff, 0x20eb },
3648                 { 0x4b, 0xffff, 0xa908 },
3649                 { 0x5e, 0xffff, 0x20eb },
3650                 { 0x22, 0x0030, 0x0020 },
3651                 { 0x62, 0x0030, 0x0020 },
3652         };
3653
3654         rtl_set_def_aspm_entry_latency(tp);
3655         rtl_hw_aspm_clkreq_enable(tp, false);
3656
3657         rtl_ephy_init(tp, e_info_8125b);
3658         rtl_hw_start_8125_common(tp);
3659
3660         rtl_hw_aspm_clkreq_enable(tp, true);
3661 }
3662
3663 static void rtl_hw_config(struct rtl8169_private *tp)
3664 {
3665         static const rtl_generic_fct hw_configs[] = {
3666                 [RTL_GIGA_MAC_VER_07] = rtl_hw_start_8102e_1,
3667                 [RTL_GIGA_MAC_VER_08] = rtl_hw_start_8102e_3,
3668                 [RTL_GIGA_MAC_VER_09] = rtl_hw_start_8102e_2,
3669                 [RTL_GIGA_MAC_VER_10] = NULL,
3670                 [RTL_GIGA_MAC_VER_11] = rtl_hw_start_8168b,
3671                 [RTL_GIGA_MAC_VER_12] = rtl_hw_start_8168b,
3672                 [RTL_GIGA_MAC_VER_13] = NULL,
3673                 [RTL_GIGA_MAC_VER_14] = rtl_hw_start_8401,
3674                 [RTL_GIGA_MAC_VER_16] = NULL,
3675                 [RTL_GIGA_MAC_VER_17] = rtl_hw_start_8168b,
3676                 [RTL_GIGA_MAC_VER_18] = rtl_hw_start_8168cp_1,
3677                 [RTL_GIGA_MAC_VER_19] = rtl_hw_start_8168c_1,
3678                 [RTL_GIGA_MAC_VER_20] = rtl_hw_start_8168c_2,
3679                 [RTL_GIGA_MAC_VER_21] = rtl_hw_start_8168c_3,
3680                 [RTL_GIGA_MAC_VER_22] = rtl_hw_start_8168c_4,
3681                 [RTL_GIGA_MAC_VER_23] = rtl_hw_start_8168cp_2,
3682                 [RTL_GIGA_MAC_VER_24] = rtl_hw_start_8168cp_3,
3683                 [RTL_GIGA_MAC_VER_25] = rtl_hw_start_8168d,
3684                 [RTL_GIGA_MAC_VER_26] = rtl_hw_start_8168d,
3685                 [RTL_GIGA_MAC_VER_27] = rtl_hw_start_8168d,
3686                 [RTL_GIGA_MAC_VER_28] = rtl_hw_start_8168d_4,
3687                 [RTL_GIGA_MAC_VER_29] = rtl_hw_start_8105e_1,
3688                 [RTL_GIGA_MAC_VER_30] = rtl_hw_start_8105e_2,
3689                 [RTL_GIGA_MAC_VER_31] = rtl_hw_start_8168d,
3690                 [RTL_GIGA_MAC_VER_32] = rtl_hw_start_8168e_1,
3691                 [RTL_GIGA_MAC_VER_33] = rtl_hw_start_8168e_1,
3692                 [RTL_GIGA_MAC_VER_34] = rtl_hw_start_8168e_2,
3693                 [RTL_GIGA_MAC_VER_35] = rtl_hw_start_8168f_1,
3694                 [RTL_GIGA_MAC_VER_36] = rtl_hw_start_8168f_1,
3695                 [RTL_GIGA_MAC_VER_37] = rtl_hw_start_8402,
3696                 [RTL_GIGA_MAC_VER_38] = rtl_hw_start_8411,
3697                 [RTL_GIGA_MAC_VER_39] = rtl_hw_start_8106,
3698                 [RTL_GIGA_MAC_VER_40] = rtl_hw_start_8168g_1,
3699                 [RTL_GIGA_MAC_VER_41] = rtl_hw_start_8168g_1,
3700                 [RTL_GIGA_MAC_VER_42] = rtl_hw_start_8168g_2,
3701                 [RTL_GIGA_MAC_VER_43] = rtl_hw_start_8168g_2,
3702                 [RTL_GIGA_MAC_VER_44] = rtl_hw_start_8411_2,
3703                 [RTL_GIGA_MAC_VER_45] = rtl_hw_start_8168h_1,
3704                 [RTL_GIGA_MAC_VER_46] = rtl_hw_start_8168h_1,
3705                 [RTL_GIGA_MAC_VER_47] = rtl_hw_start_8168h_1,
3706                 [RTL_GIGA_MAC_VER_48] = rtl_hw_start_8168h_1,
3707                 [RTL_GIGA_MAC_VER_49] = rtl_hw_start_8168ep_1,
3708                 [RTL_GIGA_MAC_VER_50] = rtl_hw_start_8168ep_2,
3709                 [RTL_GIGA_MAC_VER_51] = rtl_hw_start_8168ep_3,
3710                 [RTL_GIGA_MAC_VER_52] = rtl_hw_start_8117,
3711                 [RTL_GIGA_MAC_VER_60] = rtl_hw_start_8125a_1,
3712                 [RTL_GIGA_MAC_VER_61] = rtl_hw_start_8125a_2,
3713                 [RTL_GIGA_MAC_VER_63] = rtl_hw_start_8125b,
3714         };
3715
3716         if (hw_configs[tp->mac_version])
3717                 hw_configs[tp->mac_version](tp);
3718 }
3719
3720 static void rtl_hw_start_8125(struct rtl8169_private *tp)
3721 {
3722         int i;
3723
3724         /* disable interrupt coalescing */
3725         for (i = 0xa00; i < 0xb00; i += 4)
3726                 RTL_W32(tp, i, 0);
3727
3728         rtl_hw_config(tp);
3729 }
3730
3731 static void rtl_hw_start_8168(struct rtl8169_private *tp)
3732 {
3733         if (rtl_is_8168evl_up(tp))
3734                 RTL_W8(tp, MaxTxPacketSize, EarlySize);
3735         else
3736                 RTL_W8(tp, MaxTxPacketSize, TxPacketMax);
3737
3738         rtl_hw_config(tp);
3739
3740         /* disable interrupt coalescing */
3741         RTL_W16(tp, IntrMitigate, 0x0000);
3742 }
3743
3744 static void rtl_hw_start_8169(struct rtl8169_private *tp)
3745 {
3746         RTL_W8(tp, EarlyTxThres, NoEarlyTx);
3747
3748         tp->cp_cmd |= PCIMulRW;
3749
3750         if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
3751             tp->mac_version == RTL_GIGA_MAC_VER_03)
3752                 tp->cp_cmd |= EnAnaPLL;
3753
3754         RTL_W16(tp, CPlusCmd, tp->cp_cmd);
3755
3756         rtl8169_set_magic_reg(tp);
3757
3758         /* disable interrupt coalescing */
3759         RTL_W16(tp, IntrMitigate, 0x0000);
3760 }
3761
3762 static void rtl_hw_start(struct  rtl8169_private *tp)
3763 {
3764         rtl_unlock_config_regs(tp);
3765
3766         RTL_W16(tp, CPlusCmd, tp->cp_cmd);
3767
3768         if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
3769                 rtl_hw_start_8169(tp);
3770         else if (rtl_is_8125(tp))
3771                 rtl_hw_start_8125(tp);
3772         else
3773                 rtl_hw_start_8168(tp);
3774
3775         rtl_set_rx_max_size(tp);
3776         rtl_set_rx_tx_desc_registers(tp);
3777         rtl_lock_config_regs(tp);
3778
3779         rtl_jumbo_config(tp);
3780
3781         /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
3782         rtl_pci_commit(tp);
3783
3784         RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
3785         rtl_init_rxcfg(tp);
3786         rtl_set_tx_config_registers(tp);
3787         rtl_set_rx_config_features(tp, tp->dev->features);
3788         rtl_set_rx_mode(tp->dev);
3789         rtl_irq_enable(tp);
3790 }
3791
3792 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
3793 {
3794         struct rtl8169_private *tp = netdev_priv(dev);
3795
3796         dev->mtu = new_mtu;
3797         netdev_update_features(dev);
3798         rtl_jumbo_config(tp);
3799
3800         switch (tp->mac_version) {
3801         case RTL_GIGA_MAC_VER_61:
3802         case RTL_GIGA_MAC_VER_63:
3803                 rtl8125_set_eee_txidle_timer(tp);
3804                 break;
3805         default:
3806                 break;
3807         }
3808
3809         return 0;
3810 }
3811
3812 static void rtl8169_mark_to_asic(struct RxDesc *desc)
3813 {
3814         u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
3815
3816         desc->opts2 = 0;
3817         /* Force memory writes to complete before releasing descriptor */
3818         dma_wmb();
3819         WRITE_ONCE(desc->opts1, cpu_to_le32(DescOwn | eor | R8169_RX_BUF_SIZE));
3820 }
3821
3822 static struct page *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
3823                                           struct RxDesc *desc)
3824 {
3825         struct device *d = tp_to_dev(tp);
3826         int node = dev_to_node(d);
3827         dma_addr_t mapping;
3828         struct page *data;
3829
3830         data = alloc_pages_node(node, GFP_KERNEL, get_order(R8169_RX_BUF_SIZE));
3831         if (!data)
3832                 return NULL;
3833
3834         mapping = dma_map_page(d, data, 0, R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
3835         if (unlikely(dma_mapping_error(d, mapping))) {
3836                 netdev_err(tp->dev, "Failed to map RX DMA!\n");
3837                 __free_pages(data, get_order(R8169_RX_BUF_SIZE));
3838                 return NULL;
3839         }
3840
3841         desc->addr = cpu_to_le64(mapping);
3842         rtl8169_mark_to_asic(desc);
3843
3844         return data;
3845 }
3846
3847 static void rtl8169_rx_clear(struct rtl8169_private *tp)
3848 {
3849         int i;
3850
3851         for (i = 0; i < NUM_RX_DESC && tp->Rx_databuff[i]; i++) {
3852                 dma_unmap_page(tp_to_dev(tp),
3853                                le64_to_cpu(tp->RxDescArray[i].addr),
3854                                R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
3855                 __free_pages(tp->Rx_databuff[i], get_order(R8169_RX_BUF_SIZE));
3856                 tp->Rx_databuff[i] = NULL;
3857                 tp->RxDescArray[i].addr = 0;
3858                 tp->RxDescArray[i].opts1 = 0;
3859         }
3860 }
3861
3862 static int rtl8169_rx_fill(struct rtl8169_private *tp)
3863 {
3864         int i;
3865
3866         for (i = 0; i < NUM_RX_DESC; i++) {
3867                 struct page *data;
3868
3869                 data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
3870                 if (!data) {
3871                         rtl8169_rx_clear(tp);
3872                         return -ENOMEM;
3873                 }
3874                 tp->Rx_databuff[i] = data;
3875         }
3876
3877         /* mark as last descriptor in the ring */
3878         tp->RxDescArray[NUM_RX_DESC - 1].opts1 |= cpu_to_le32(RingEnd);
3879
3880         return 0;
3881 }
3882
3883 static int rtl8169_init_ring(struct rtl8169_private *tp)
3884 {
3885         rtl8169_init_ring_indexes(tp);
3886
3887         memset(tp->tx_skb, 0, sizeof(tp->tx_skb));
3888         memset(tp->Rx_databuff, 0, sizeof(tp->Rx_databuff));
3889
3890         return rtl8169_rx_fill(tp);
3891 }
3892
3893 static void rtl8169_unmap_tx_skb(struct rtl8169_private *tp, unsigned int entry)
3894 {
3895         struct ring_info *tx_skb = tp->tx_skb + entry;
3896         struct TxDesc *desc = tp->TxDescArray + entry;
3897
3898         dma_unmap_single(tp_to_dev(tp), le64_to_cpu(desc->addr), tx_skb->len,
3899                          DMA_TO_DEVICE);
3900         memset(desc, 0, sizeof(*desc));
3901         memset(tx_skb, 0, sizeof(*tx_skb));
3902 }
3903
3904 static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
3905                                    unsigned int n)
3906 {
3907         unsigned int i;
3908
3909         for (i = 0; i < n; i++) {
3910                 unsigned int entry = (start + i) % NUM_TX_DESC;
3911                 struct ring_info *tx_skb = tp->tx_skb + entry;
3912                 unsigned int len = tx_skb->len;
3913
3914                 if (len) {
3915                         struct sk_buff *skb = tx_skb->skb;
3916
3917                         rtl8169_unmap_tx_skb(tp, entry);
3918                         if (skb)
3919                                 dev_consume_skb_any(skb);
3920                 }
3921         }
3922 }
3923
3924 static void rtl8169_tx_clear(struct rtl8169_private *tp)
3925 {
3926         rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
3927         netdev_reset_queue(tp->dev);
3928 }
3929
3930 static void rtl8169_cleanup(struct rtl8169_private *tp, bool going_down)
3931 {
3932         napi_disable(&tp->napi);
3933
3934         /* Give a racing hard_start_xmit a few cycles to complete. */
3935         synchronize_net();
3936
3937         /* Disable interrupts */
3938         rtl8169_irq_mask_and_ack(tp);
3939
3940         rtl_rx_close(tp);
3941
3942         if (going_down && tp->dev->wol_enabled)
3943                 goto no_reset;
3944
3945         switch (tp->mac_version) {
3946         case RTL_GIGA_MAC_VER_27:
3947         case RTL_GIGA_MAC_VER_28:
3948         case RTL_GIGA_MAC_VER_31:
3949                 rtl_loop_wait_low(tp, &rtl_npq_cond, 20, 2000);
3950                 break;
3951         case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
3952                 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
3953                 rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 666);
3954                 break;
3955         case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
3956                 rtl_enable_rxdvgate(tp);
3957                 fsleep(2000);
3958                 break;
3959         default:
3960                 RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
3961                 fsleep(100);
3962                 break;
3963         }
3964
3965         rtl_hw_reset(tp);
3966 no_reset:
3967         rtl8169_tx_clear(tp);
3968         rtl8169_init_ring_indexes(tp);
3969 }
3970
3971 static void rtl_reset_work(struct rtl8169_private *tp)
3972 {
3973         int i;
3974
3975         netif_stop_queue(tp->dev);
3976
3977         rtl8169_cleanup(tp, false);
3978
3979         for (i = 0; i < NUM_RX_DESC; i++)
3980                 rtl8169_mark_to_asic(tp->RxDescArray + i);
3981
3982         napi_enable(&tp->napi);
3983         rtl_hw_start(tp);
3984 }
3985
3986 static void rtl8169_tx_timeout(struct net_device *dev, unsigned int txqueue)
3987 {
3988         struct rtl8169_private *tp = netdev_priv(dev);
3989
3990         rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
3991 }
3992
3993 static int rtl8169_tx_map(struct rtl8169_private *tp, const u32 *opts, u32 len,
3994                           void *addr, unsigned int entry, bool desc_own)
3995 {
3996         struct TxDesc *txd = tp->TxDescArray + entry;
3997         struct device *d = tp_to_dev(tp);
3998         dma_addr_t mapping;
3999         u32 opts1;
4000         int ret;
4001
4002         mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
4003         ret = dma_mapping_error(d, mapping);
4004         if (unlikely(ret)) {
4005                 if (net_ratelimit())
4006                         netdev_err(tp->dev, "Failed to map TX data!\n");
4007                 return ret;
4008         }
4009
4010         txd->addr = cpu_to_le64(mapping);
4011         txd->opts2 = cpu_to_le32(opts[1]);
4012
4013         opts1 = opts[0] | len;
4014         if (entry == NUM_TX_DESC - 1)
4015                 opts1 |= RingEnd;
4016         if (desc_own)
4017                 opts1 |= DescOwn;
4018         txd->opts1 = cpu_to_le32(opts1);
4019
4020         tp->tx_skb[entry].len = len;
4021
4022         return 0;
4023 }
4024
4025 static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
4026                               const u32 *opts, unsigned int entry)
4027 {
4028         struct skb_shared_info *info = skb_shinfo(skb);
4029         unsigned int cur_frag;
4030
4031         for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
4032                 const skb_frag_t *frag = info->frags + cur_frag;
4033                 void *addr = skb_frag_address(frag);
4034                 u32 len = skb_frag_size(frag);
4035
4036                 entry = (entry + 1) % NUM_TX_DESC;
4037
4038                 if (unlikely(rtl8169_tx_map(tp, opts, len, addr, entry, true)))
4039                         goto err_out;
4040         }
4041
4042         return 0;
4043
4044 err_out:
4045         rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
4046         return -EIO;
4047 }
4048
4049 static bool rtl_skb_is_udp(struct sk_buff *skb)
4050 {
4051         int no = skb_network_offset(skb);
4052         struct ipv6hdr *i6h, _i6h;
4053         struct iphdr *ih, _ih;
4054
4055         switch (vlan_get_protocol(skb)) {
4056         case htons(ETH_P_IP):
4057                 ih = skb_header_pointer(skb, no, sizeof(_ih), &_ih);
4058                 return ih && ih->protocol == IPPROTO_UDP;
4059         case htons(ETH_P_IPV6):
4060                 i6h = skb_header_pointer(skb, no, sizeof(_i6h), &_i6h);
4061                 return i6h && i6h->nexthdr == IPPROTO_UDP;
4062         default:
4063                 return false;
4064         }
4065 }
4066
4067 #define RTL_MIN_PATCH_LEN       47
4068
4069 /* see rtl8125_get_patch_pad_len() in r8125 vendor driver */
4070 static unsigned int rtl8125_quirk_udp_padto(struct rtl8169_private *tp,
4071                                             struct sk_buff *skb)
4072 {
4073         unsigned int padto = 0, len = skb->len;
4074
4075         if (rtl_is_8125(tp) && len < 128 + RTL_MIN_PATCH_LEN &&
4076             rtl_skb_is_udp(skb) && skb_transport_header_was_set(skb)) {
4077                 unsigned int trans_data_len = skb_tail_pointer(skb) -
4078                                               skb_transport_header(skb);
4079
4080                 if (trans_data_len >= offsetof(struct udphdr, len) &&
4081                     trans_data_len < RTL_MIN_PATCH_LEN) {
4082                         u16 dest = ntohs(udp_hdr(skb)->dest);
4083
4084                         /* dest is a standard PTP port */
4085                         if (dest == 319 || dest == 320)
4086                                 padto = len + RTL_MIN_PATCH_LEN - trans_data_len;
4087                 }
4088
4089                 if (trans_data_len < sizeof(struct udphdr))
4090                         padto = max_t(unsigned int, padto,
4091                                       len + sizeof(struct udphdr) - trans_data_len);
4092         }
4093
4094         return padto;
4095 }
4096
4097 static unsigned int rtl_quirk_packet_padto(struct rtl8169_private *tp,
4098                                            struct sk_buff *skb)
4099 {
4100         unsigned int padto;
4101
4102         padto = rtl8125_quirk_udp_padto(tp, skb);
4103
4104         switch (tp->mac_version) {
4105         case RTL_GIGA_MAC_VER_34:
4106         case RTL_GIGA_MAC_VER_60:
4107         case RTL_GIGA_MAC_VER_61:
4108         case RTL_GIGA_MAC_VER_63:
4109                 padto = max_t(unsigned int, padto, ETH_ZLEN);
4110         default:
4111                 break;
4112         }
4113
4114         return padto;
4115 }
4116
4117 static void rtl8169_tso_csum_v1(struct sk_buff *skb, u32 *opts)
4118 {
4119         u32 mss = skb_shinfo(skb)->gso_size;
4120
4121         if (mss) {
4122                 opts[0] |= TD_LSO;
4123                 opts[0] |= mss << TD0_MSS_SHIFT;
4124         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4125                 const struct iphdr *ip = ip_hdr(skb);
4126
4127                 if (ip->protocol == IPPROTO_TCP)
4128                         opts[0] |= TD0_IP_CS | TD0_TCP_CS;
4129                 else if (ip->protocol == IPPROTO_UDP)
4130                         opts[0] |= TD0_IP_CS | TD0_UDP_CS;
4131                 else
4132                         WARN_ON_ONCE(1);
4133         }
4134 }
4135
4136 static bool rtl8169_tso_csum_v2(struct rtl8169_private *tp,
4137                                 struct sk_buff *skb, u32 *opts)
4138 {
4139         u32 transport_offset = (u32)skb_transport_offset(skb);
4140         struct skb_shared_info *shinfo = skb_shinfo(skb);
4141         u32 mss = shinfo->gso_size;
4142
4143         if (mss) {
4144                 if (shinfo->gso_type & SKB_GSO_TCPV4) {
4145                         opts[0] |= TD1_GTSENV4;
4146                 } else if (shinfo->gso_type & SKB_GSO_TCPV6) {
4147                         if (skb_cow_head(skb, 0))
4148                                 return false;
4149
4150                         tcp_v6_gso_csum_prep(skb);
4151                         opts[0] |= TD1_GTSENV6;
4152                 } else {
4153                         WARN_ON_ONCE(1);
4154                 }
4155
4156                 opts[0] |= transport_offset << GTTCPHO_SHIFT;
4157                 opts[1] |= mss << TD1_MSS_SHIFT;
4158         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4159                 u8 ip_protocol;
4160
4161                 switch (vlan_get_protocol(skb)) {
4162                 case htons(ETH_P_IP):
4163                         opts[1] |= TD1_IPv4_CS;
4164                         ip_protocol = ip_hdr(skb)->protocol;
4165                         break;
4166
4167                 case htons(ETH_P_IPV6):
4168                         opts[1] |= TD1_IPv6_CS;
4169                         ip_protocol = ipv6_hdr(skb)->nexthdr;
4170                         break;
4171
4172                 default:
4173                         ip_protocol = IPPROTO_RAW;
4174                         break;
4175                 }
4176
4177                 if (ip_protocol == IPPROTO_TCP)
4178                         opts[1] |= TD1_TCP_CS;
4179                 else if (ip_protocol == IPPROTO_UDP)
4180                         opts[1] |= TD1_UDP_CS;
4181                 else
4182                         WARN_ON_ONCE(1);
4183
4184                 opts[1] |= transport_offset << TCPHO_SHIFT;
4185         } else {
4186                 unsigned int padto = rtl_quirk_packet_padto(tp, skb);
4187
4188                 /* skb_padto would free the skb on error */
4189                 return !__skb_put_padto(skb, padto, false);
4190         }
4191
4192         return true;
4193 }
4194
4195 static bool rtl_tx_slots_avail(struct rtl8169_private *tp)
4196 {
4197         unsigned int slots_avail = READ_ONCE(tp->dirty_tx) + NUM_TX_DESC
4198                                         - READ_ONCE(tp->cur_tx);
4199
4200         /* A skbuff with nr_frags needs nr_frags+1 entries in the tx queue */
4201         return slots_avail > MAX_SKB_FRAGS;
4202 }
4203
4204 /* Versions RTL8102e and from RTL8168c onwards support csum_v2 */
4205 static bool rtl_chip_supports_csum_v2(struct rtl8169_private *tp)
4206 {
4207         switch (tp->mac_version) {
4208         case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
4209         case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
4210                 return false;
4211         default:
4212                 return true;
4213         }
4214 }
4215
4216 static void rtl8169_doorbell(struct rtl8169_private *tp)
4217 {
4218         if (rtl_is_8125(tp))
4219                 RTL_W16(tp, TxPoll_8125, BIT(0));
4220         else
4221                 RTL_W8(tp, TxPoll, NPQ);
4222 }
4223
4224 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
4225                                       struct net_device *dev)
4226 {
4227         unsigned int frags = skb_shinfo(skb)->nr_frags;
4228         struct rtl8169_private *tp = netdev_priv(dev);
4229         unsigned int entry = tp->cur_tx % NUM_TX_DESC;
4230         struct TxDesc *txd_first, *txd_last;
4231         bool stop_queue, door_bell;
4232         u32 opts[2];
4233
4234         if (unlikely(!rtl_tx_slots_avail(tp))) {
4235                 if (net_ratelimit())
4236                         netdev_err(dev, "BUG! Tx Ring full when queue awake!\n");
4237                 goto err_stop_0;
4238         }
4239
4240         opts[1] = rtl8169_tx_vlan_tag(skb);
4241         opts[0] = 0;
4242
4243         if (!rtl_chip_supports_csum_v2(tp))
4244                 rtl8169_tso_csum_v1(skb, opts);
4245         else if (!rtl8169_tso_csum_v2(tp, skb, opts))
4246                 goto err_dma_0;
4247
4248         if (unlikely(rtl8169_tx_map(tp, opts, skb_headlen(skb), skb->data,
4249                                     entry, false)))
4250                 goto err_dma_0;
4251
4252         txd_first = tp->TxDescArray + entry;
4253
4254         if (frags) {
4255                 if (rtl8169_xmit_frags(tp, skb, opts, entry))
4256                         goto err_dma_1;
4257                 entry = (entry + frags) % NUM_TX_DESC;
4258         }
4259
4260         txd_last = tp->TxDescArray + entry;
4261         txd_last->opts1 |= cpu_to_le32(LastFrag);
4262         tp->tx_skb[entry].skb = skb;
4263
4264         skb_tx_timestamp(skb);
4265
4266         /* Force memory writes to complete before releasing descriptor */
4267         dma_wmb();
4268
4269         door_bell = __netdev_sent_queue(dev, skb->len, netdev_xmit_more());
4270
4271         txd_first->opts1 |= cpu_to_le32(DescOwn | FirstFrag);
4272
4273         /* rtl_tx needs to see descriptor changes before updated tp->cur_tx */
4274         smp_wmb();
4275
4276         WRITE_ONCE(tp->cur_tx, tp->cur_tx + frags + 1);
4277
4278         stop_queue = !rtl_tx_slots_avail(tp);
4279         if (unlikely(stop_queue)) {
4280                 /* Avoid wrongly optimistic queue wake-up: rtl_tx thread must
4281                  * not miss a ring update when it notices a stopped queue.
4282                  */
4283                 smp_wmb();
4284                 netif_stop_queue(dev);
4285                 /* Sync with rtl_tx:
4286                  * - publish queue status and cur_tx ring index (write barrier)
4287                  * - refresh dirty_tx ring index (read barrier).
4288                  * May the current thread have a pessimistic view of the ring
4289                  * status and forget to wake up queue, a racing rtl_tx thread
4290                  * can't.
4291                  */
4292                 smp_mb__after_atomic();
4293                 if (rtl_tx_slots_avail(tp))
4294                         netif_start_queue(dev);
4295                 door_bell = true;
4296         }
4297
4298         if (door_bell)
4299                 rtl8169_doorbell(tp);
4300
4301         return NETDEV_TX_OK;
4302
4303 err_dma_1:
4304         rtl8169_unmap_tx_skb(tp, entry);
4305 err_dma_0:
4306         dev_kfree_skb_any(skb);
4307         dev->stats.tx_dropped++;
4308         return NETDEV_TX_OK;
4309
4310 err_stop_0:
4311         netif_stop_queue(dev);
4312         dev->stats.tx_dropped++;
4313         return NETDEV_TX_BUSY;
4314 }
4315
4316 static unsigned int rtl_last_frag_len(struct sk_buff *skb)
4317 {
4318         struct skb_shared_info *info = skb_shinfo(skb);
4319         unsigned int nr_frags = info->nr_frags;
4320
4321         if (!nr_frags)
4322                 return UINT_MAX;
4323
4324         return skb_frag_size(info->frags + nr_frags - 1);
4325 }
4326
4327 /* Workaround for hw issues with TSO on RTL8168evl */
4328 static netdev_features_t rtl8168evl_fix_tso(struct sk_buff *skb,
4329                                             netdev_features_t features)
4330 {
4331         /* IPv4 header has options field */
4332         if (vlan_get_protocol(skb) == htons(ETH_P_IP) &&
4333             ip_hdrlen(skb) > sizeof(struct iphdr))
4334                 features &= ~NETIF_F_ALL_TSO;
4335
4336         /* IPv4 TCP header has options field */
4337         else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4 &&
4338                  tcp_hdrlen(skb) > sizeof(struct tcphdr))
4339                 features &= ~NETIF_F_ALL_TSO;
4340
4341         else if (rtl_last_frag_len(skb) <= 6)
4342                 features &= ~NETIF_F_ALL_TSO;
4343
4344         return features;
4345 }
4346
4347 static netdev_features_t rtl8169_features_check(struct sk_buff *skb,
4348                                                 struct net_device *dev,
4349                                                 netdev_features_t features)
4350 {
4351         int transport_offset = skb_transport_offset(skb);
4352         struct rtl8169_private *tp = netdev_priv(dev);
4353
4354         if (skb_is_gso(skb)) {
4355                 if (tp->mac_version == RTL_GIGA_MAC_VER_34)
4356                         features = rtl8168evl_fix_tso(skb, features);
4357
4358                 if (transport_offset > GTTCPHO_MAX &&
4359                     rtl_chip_supports_csum_v2(tp))
4360                         features &= ~NETIF_F_ALL_TSO;
4361         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
4362                 /* work around hw bug on some chip versions */
4363                 if (skb->len < ETH_ZLEN)
4364                         features &= ~NETIF_F_CSUM_MASK;
4365
4366                 if (rtl_quirk_packet_padto(tp, skb))
4367                         features &= ~NETIF_F_CSUM_MASK;
4368
4369                 if (transport_offset > TCPHO_MAX &&
4370                     rtl_chip_supports_csum_v2(tp))
4371                         features &= ~NETIF_F_CSUM_MASK;
4372         }
4373
4374         return vlan_features_check(skb, features);
4375 }
4376
4377 static void rtl8169_pcierr_interrupt(struct net_device *dev)
4378 {
4379         struct rtl8169_private *tp = netdev_priv(dev);
4380         struct pci_dev *pdev = tp->pci_dev;
4381         int pci_status_errs;
4382         u16 pci_cmd;
4383
4384         pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
4385
4386         pci_status_errs = pci_status_get_and_clear_errors(pdev);
4387
4388         if (net_ratelimit())
4389                 netdev_err(dev, "PCI error (cmd = 0x%04x, status_errs = 0x%04x)\n",
4390                            pci_cmd, pci_status_errs);
4391         /*
4392          * The recovery sequence below admits a very elaborated explanation:
4393          * - it seems to work;
4394          * - I did not see what else could be done;
4395          * - it makes iop3xx happy.
4396          *
4397          * Feel free to adjust to your needs.
4398          */
4399         if (pdev->broken_parity_status)
4400                 pci_cmd &= ~PCI_COMMAND_PARITY;
4401         else
4402                 pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
4403
4404         pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
4405
4406         rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
4407 }
4408
4409 static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
4410                    int budget)
4411 {
4412         unsigned int dirty_tx, bytes_compl = 0, pkts_compl = 0;
4413         struct sk_buff *skb;
4414
4415         dirty_tx = tp->dirty_tx;
4416
4417         while (READ_ONCE(tp->cur_tx) != dirty_tx) {
4418                 unsigned int entry = dirty_tx % NUM_TX_DESC;
4419                 u32 status;
4420
4421                 status = le32_to_cpu(tp->TxDescArray[entry].opts1);
4422                 if (status & DescOwn)
4423                         break;
4424
4425                 skb = tp->tx_skb[entry].skb;
4426                 rtl8169_unmap_tx_skb(tp, entry);
4427
4428                 if (skb) {
4429                         pkts_compl++;
4430                         bytes_compl += skb->len;
4431                         napi_consume_skb(skb, budget);
4432                 }
4433                 dirty_tx++;
4434         }
4435
4436         if (tp->dirty_tx != dirty_tx) {
4437                 netdev_completed_queue(dev, pkts_compl, bytes_compl);
4438                 dev_sw_netstats_tx_add(dev, pkts_compl, bytes_compl);
4439
4440                 /* Sync with rtl8169_start_xmit:
4441                  * - publish dirty_tx ring index (write barrier)
4442                  * - refresh cur_tx ring index and queue status (read barrier)
4443                  * May the current thread miss the stopped queue condition,
4444                  * a racing xmit thread can only have a right view of the
4445                  * ring status.
4446                  */
4447                 smp_store_mb(tp->dirty_tx, dirty_tx);
4448                 if (netif_queue_stopped(dev) && rtl_tx_slots_avail(tp))
4449                         netif_wake_queue(dev);
4450                 /*
4451                  * 8168 hack: TxPoll requests are lost when the Tx packets are
4452                  * too close. Let's kick an extra TxPoll request when a burst
4453                  * of start_xmit activity is detected (if it is not detected,
4454                  * it is slow enough). -- FR
4455                  * If skb is NULL then we come here again once a tx irq is
4456                  * triggered after the last fragment is marked transmitted.
4457                  */
4458                 if (tp->cur_tx != dirty_tx && skb)
4459                         rtl8169_doorbell(tp);
4460         }
4461 }
4462
4463 static inline int rtl8169_fragmented_frame(u32 status)
4464 {
4465         return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
4466 }
4467
4468 static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
4469 {
4470         u32 status = opts1 & RxProtoMask;
4471
4472         if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
4473             ((status == RxProtoUDP) && !(opts1 & UDPFail)))
4474                 skb->ip_summed = CHECKSUM_UNNECESSARY;
4475         else
4476                 skb_checksum_none_assert(skb);
4477 }
4478
4479 static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, int budget)
4480 {
4481         struct device *d = tp_to_dev(tp);
4482         int count;
4483
4484         for (count = 0; count < budget; count++, tp->cur_rx++) {
4485                 unsigned int pkt_size, entry = tp->cur_rx % NUM_RX_DESC;
4486                 struct RxDesc *desc = tp->RxDescArray + entry;
4487                 struct sk_buff *skb;
4488                 const void *rx_buf;
4489                 dma_addr_t addr;
4490                 u32 status;
4491
4492                 status = le32_to_cpu(desc->opts1);
4493                 if (status & DescOwn)
4494                         break;
4495
4496                 /* This barrier is needed to keep us from reading
4497                  * any other fields out of the Rx descriptor until
4498                  * we know the status of DescOwn
4499                  */
4500                 dma_rmb();
4501
4502                 if (unlikely(status & RxRES)) {
4503                         if (net_ratelimit())
4504                                 netdev_warn(dev, "Rx ERROR. status = %08x\n",
4505                                             status);
4506                         dev->stats.rx_errors++;
4507                         if (status & (RxRWT | RxRUNT))
4508                                 dev->stats.rx_length_errors++;
4509                         if (status & RxCRC)
4510                                 dev->stats.rx_crc_errors++;
4511
4512                         if (!(dev->features & NETIF_F_RXALL))
4513                                 goto release_descriptor;
4514                         else if (status & RxRWT || !(status & (RxRUNT | RxCRC)))
4515                                 goto release_descriptor;
4516                 }
4517
4518                 pkt_size = status & GENMASK(13, 0);
4519                 if (likely(!(dev->features & NETIF_F_RXFCS)))
4520                         pkt_size -= ETH_FCS_LEN;
4521
4522                 /* The driver does not support incoming fragmented frames.
4523                  * They are seen as a symptom of over-mtu sized frames.
4524                  */
4525                 if (unlikely(rtl8169_fragmented_frame(status))) {
4526                         dev->stats.rx_dropped++;
4527                         dev->stats.rx_length_errors++;
4528                         goto release_descriptor;
4529                 }
4530
4531                 skb = napi_alloc_skb(&tp->napi, pkt_size);
4532                 if (unlikely(!skb)) {
4533                         dev->stats.rx_dropped++;
4534                         goto release_descriptor;
4535                 }
4536
4537                 addr = le64_to_cpu(desc->addr);
4538                 rx_buf = page_address(tp->Rx_databuff[entry]);
4539
4540                 dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
4541                 prefetch(rx_buf);
4542                 skb_copy_to_linear_data(skb, rx_buf, pkt_size);
4543                 skb->tail += pkt_size;
4544                 skb->len = pkt_size;
4545                 dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
4546
4547                 rtl8169_rx_csum(skb, status);
4548                 skb->protocol = eth_type_trans(skb, dev);
4549
4550                 rtl8169_rx_vlan_tag(desc, skb);
4551
4552                 if (skb->pkt_type == PACKET_MULTICAST)
4553                         dev->stats.multicast++;
4554
4555                 napi_gro_receive(&tp->napi, skb);
4556
4557                 dev_sw_netstats_rx_add(dev, pkt_size);
4558 release_descriptor:
4559                 rtl8169_mark_to_asic(desc);
4560         }
4561
4562         return count;
4563 }
4564
4565 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
4566 {
4567         struct rtl8169_private *tp = dev_instance;
4568         u32 status = rtl_get_events(tp);
4569
4570         if ((status & 0xffff) == 0xffff || !(status & tp->irq_mask))
4571                 return IRQ_NONE;
4572
4573         if (unlikely(status & SYSErr)) {
4574                 rtl8169_pcierr_interrupt(tp->dev);
4575                 goto out;
4576         }
4577
4578         if (status & LinkChg)
4579                 phy_mac_interrupt(tp->phydev);
4580
4581         if (unlikely(status & RxFIFOOver &&
4582             tp->mac_version == RTL_GIGA_MAC_VER_11)) {
4583                 netif_stop_queue(tp->dev);
4584                 rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
4585         }
4586
4587         rtl_irq_disable(tp);
4588         napi_schedule(&tp->napi);
4589 out:
4590         rtl_ack_events(tp, status);
4591
4592         return IRQ_HANDLED;
4593 }
4594
4595 static void rtl_task(struct work_struct *work)
4596 {
4597         struct rtl8169_private *tp =
4598                 container_of(work, struct rtl8169_private, wk.work);
4599
4600         rtnl_lock();
4601
4602         if (!netif_running(tp->dev) ||
4603             !test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags))
4604                 goto out_unlock;
4605
4606         if (test_and_clear_bit(RTL_FLAG_TASK_RESET_PENDING, tp->wk.flags)) {
4607                 rtl_reset_work(tp);
4608                 netif_wake_queue(tp->dev);
4609         }
4610 out_unlock:
4611         rtnl_unlock();
4612 }
4613
4614 static int rtl8169_poll(struct napi_struct *napi, int budget)
4615 {
4616         struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
4617         struct net_device *dev = tp->dev;
4618         int work_done;
4619
4620         work_done = rtl_rx(dev, tp, budget);
4621
4622         rtl_tx(dev, tp, budget);
4623
4624         if (work_done < budget && napi_complete_done(napi, work_done))
4625                 rtl_irq_enable(tp);
4626
4627         return work_done;
4628 }
4629
4630 static void r8169_phylink_handler(struct net_device *ndev)
4631 {
4632         struct rtl8169_private *tp = netdev_priv(ndev);
4633
4634         if (netif_carrier_ok(ndev)) {
4635                 rtl_link_chg_patch(tp);
4636                 pm_request_resume(&tp->pci_dev->dev);
4637         } else {
4638                 pm_runtime_idle(&tp->pci_dev->dev);
4639         }
4640
4641         if (net_ratelimit())
4642                 phy_print_status(tp->phydev);
4643 }
4644
4645 static int r8169_phy_connect(struct rtl8169_private *tp)
4646 {
4647         struct phy_device *phydev = tp->phydev;
4648         phy_interface_t phy_mode;
4649         int ret;
4650
4651         phy_mode = tp->supports_gmii ? PHY_INTERFACE_MODE_GMII :
4652                    PHY_INTERFACE_MODE_MII;
4653
4654         ret = phy_connect_direct(tp->dev, phydev, r8169_phylink_handler,
4655                                  phy_mode);
4656         if (ret)
4657                 return ret;
4658
4659         if (!tp->supports_gmii)
4660                 phy_set_max_speed(phydev, SPEED_100);
4661
4662         phy_support_asym_pause(phydev);
4663
4664         phy_attached_info(phydev);
4665
4666         return 0;
4667 }
4668
4669 static void rtl8169_down(struct rtl8169_private *tp)
4670 {
4671         /* Clear all task flags */
4672         bitmap_zero(tp->wk.flags, RTL_FLAG_MAX);
4673
4674         phy_stop(tp->phydev);
4675
4676         rtl8169_update_counters(tp);
4677
4678         rtl8169_cleanup(tp, true);
4679
4680         rtl_pll_power_down(tp);
4681 }
4682
4683 static void rtl8169_up(struct rtl8169_private *tp)
4684 {
4685         rtl_pll_power_up(tp);
4686         rtl8169_init_phy(tp);
4687         napi_enable(&tp->napi);
4688         set_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags);
4689         rtl_reset_work(tp);
4690
4691         phy_start(tp->phydev);
4692 }
4693
4694 static int rtl8169_close(struct net_device *dev)
4695 {
4696         struct rtl8169_private *tp = netdev_priv(dev);
4697         struct pci_dev *pdev = tp->pci_dev;
4698
4699         pm_runtime_get_sync(&pdev->dev);
4700
4701         netif_stop_queue(dev);
4702         rtl8169_down(tp);
4703         rtl8169_rx_clear(tp);
4704
4705         cancel_work_sync(&tp->wk.work);
4706
4707         phy_disconnect(tp->phydev);
4708
4709         free_irq(pci_irq_vector(pdev, 0), tp);
4710
4711         dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
4712                           tp->RxPhyAddr);
4713         dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
4714                           tp->TxPhyAddr);
4715         tp->TxDescArray = NULL;
4716         tp->RxDescArray = NULL;
4717
4718         pm_runtime_put_sync(&pdev->dev);
4719
4720         return 0;
4721 }
4722
4723 #ifdef CONFIG_NET_POLL_CONTROLLER
4724 static void rtl8169_netpoll(struct net_device *dev)
4725 {
4726         struct rtl8169_private *tp = netdev_priv(dev);
4727
4728         rtl8169_interrupt(pci_irq_vector(tp->pci_dev, 0), tp);
4729 }
4730 #endif
4731
4732 static int rtl_open(struct net_device *dev)
4733 {
4734         struct rtl8169_private *tp = netdev_priv(dev);
4735         struct pci_dev *pdev = tp->pci_dev;
4736         unsigned long irqflags;
4737         int retval = -ENOMEM;
4738
4739         pm_runtime_get_sync(&pdev->dev);
4740
4741         /*
4742          * Rx and Tx descriptors needs 256 bytes alignment.
4743          * dma_alloc_coherent provides more.
4744          */
4745         tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
4746                                              &tp->TxPhyAddr, GFP_KERNEL);
4747         if (!tp->TxDescArray)
4748                 goto out;
4749
4750         tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
4751                                              &tp->RxPhyAddr, GFP_KERNEL);
4752         if (!tp->RxDescArray)
4753                 goto err_free_tx_0;
4754
4755         retval = rtl8169_init_ring(tp);
4756         if (retval < 0)
4757                 goto err_free_rx_1;
4758
4759         rtl_request_firmware(tp);
4760
4761         irqflags = pci_dev_msi_enabled(pdev) ? IRQF_NO_THREAD : IRQF_SHARED;
4762         retval = request_irq(pci_irq_vector(pdev, 0), rtl8169_interrupt,
4763                              irqflags, dev->name, tp);
4764         if (retval < 0)
4765                 goto err_release_fw_2;
4766
4767         retval = r8169_phy_connect(tp);
4768         if (retval)
4769                 goto err_free_irq;
4770
4771         rtl8169_up(tp);
4772         rtl8169_init_counter_offsets(tp);
4773         netif_start_queue(dev);
4774 out:
4775         pm_runtime_put_sync(&pdev->dev);
4776
4777         return retval;
4778
4779 err_free_irq:
4780         free_irq(pci_irq_vector(pdev, 0), tp);
4781 err_release_fw_2:
4782         rtl_release_firmware(tp);
4783         rtl8169_rx_clear(tp);
4784 err_free_rx_1:
4785         dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
4786                           tp->RxPhyAddr);
4787         tp->RxDescArray = NULL;
4788 err_free_tx_0:
4789         dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
4790                           tp->TxPhyAddr);
4791         tp->TxDescArray = NULL;
4792         goto out;
4793 }
4794
4795 static void
4796 rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
4797 {
4798         struct rtl8169_private *tp = netdev_priv(dev);
4799         struct pci_dev *pdev = tp->pci_dev;
4800         struct rtl8169_counters *counters = tp->counters;
4801
4802         pm_runtime_get_noresume(&pdev->dev);
4803
4804         netdev_stats_to_stats64(stats, &dev->stats);
4805         dev_fetch_sw_netstats(stats, dev->tstats);
4806
4807         /*
4808          * Fetch additional counter values missing in stats collected by driver
4809          * from tally counters.
4810          */
4811         if (pm_runtime_active(&pdev->dev))
4812                 rtl8169_update_counters(tp);
4813
4814         /*
4815          * Subtract values fetched during initalization.
4816          * See rtl8169_init_counter_offsets for a description why we do that.
4817          */
4818         stats->tx_errors = le64_to_cpu(counters->tx_errors) -
4819                 le64_to_cpu(tp->tc_offset.tx_errors);
4820         stats->collisions = le32_to_cpu(counters->tx_multi_collision) -
4821                 le32_to_cpu(tp->tc_offset.tx_multi_collision);
4822         stats->tx_aborted_errors = le16_to_cpu(counters->tx_aborted) -
4823                 le16_to_cpu(tp->tc_offset.tx_aborted);
4824         stats->rx_missed_errors = le16_to_cpu(counters->rx_missed) -
4825                 le16_to_cpu(tp->tc_offset.rx_missed);
4826
4827         pm_runtime_put_noidle(&pdev->dev);
4828 }
4829
4830 static void rtl8169_net_suspend(struct rtl8169_private *tp)
4831 {
4832         netif_device_detach(tp->dev);
4833
4834         if (netif_running(tp->dev))
4835                 rtl8169_down(tp);
4836 }
4837
4838 #ifdef CONFIG_PM
4839
4840 static int rtl8169_net_resume(struct rtl8169_private *tp)
4841 {
4842         rtl_rar_set(tp, tp->dev->dev_addr);
4843
4844         if (tp->TxDescArray)
4845                 rtl8169_up(tp);
4846
4847         netif_device_attach(tp->dev);
4848
4849         return 0;
4850 }
4851
4852 static int __maybe_unused rtl8169_suspend(struct device *device)
4853 {
4854         struct rtl8169_private *tp = dev_get_drvdata(device);
4855
4856         rtnl_lock();
4857         rtl8169_net_suspend(tp);
4858         if (!device_may_wakeup(tp_to_dev(tp)))
4859                 clk_disable_unprepare(tp->clk);
4860         rtnl_unlock();
4861
4862         return 0;
4863 }
4864
4865 static int __maybe_unused rtl8169_resume(struct device *device)
4866 {
4867         struct rtl8169_private *tp = dev_get_drvdata(device);
4868
4869         if (!device_may_wakeup(tp_to_dev(tp)))
4870                 clk_prepare_enable(tp->clk);
4871
4872         /* Reportedly at least Asus X453MA truncates packets otherwise */
4873         if (tp->mac_version == RTL_GIGA_MAC_VER_37)
4874                 rtl_init_rxcfg(tp);
4875
4876         return rtl8169_net_resume(tp);
4877 }
4878
4879 static int rtl8169_runtime_suspend(struct device *device)
4880 {
4881         struct rtl8169_private *tp = dev_get_drvdata(device);
4882
4883         if (!tp->TxDescArray) {
4884                 netif_device_detach(tp->dev);
4885                 return 0;
4886         }
4887
4888         rtnl_lock();
4889         __rtl8169_set_wol(tp, WAKE_PHY);
4890         rtl8169_net_suspend(tp);
4891         rtnl_unlock();
4892
4893         return 0;
4894 }
4895
4896 static int rtl8169_runtime_resume(struct device *device)
4897 {
4898         struct rtl8169_private *tp = dev_get_drvdata(device);
4899
4900         __rtl8169_set_wol(tp, tp->saved_wolopts);
4901
4902         return rtl8169_net_resume(tp);
4903 }
4904
4905 static int rtl8169_runtime_idle(struct device *device)
4906 {
4907         struct rtl8169_private *tp = dev_get_drvdata(device);
4908
4909         if (!netif_running(tp->dev) || !netif_carrier_ok(tp->dev))
4910                 pm_schedule_suspend(device, 10000);
4911
4912         return -EBUSY;
4913 }
4914
4915 static const struct dev_pm_ops rtl8169_pm_ops = {
4916         SET_SYSTEM_SLEEP_PM_OPS(rtl8169_suspend, rtl8169_resume)
4917         SET_RUNTIME_PM_OPS(rtl8169_runtime_suspend, rtl8169_runtime_resume,
4918                            rtl8169_runtime_idle)
4919 };
4920
4921 #endif /* CONFIG_PM */
4922
4923 static void rtl_wol_shutdown_quirk(struct rtl8169_private *tp)
4924 {
4925         /* WoL fails with 8168b when the receiver is disabled. */
4926         switch (tp->mac_version) {
4927         case RTL_GIGA_MAC_VER_11:
4928         case RTL_GIGA_MAC_VER_12:
4929         case RTL_GIGA_MAC_VER_17:
4930                 pci_clear_master(tp->pci_dev);
4931
4932                 RTL_W8(tp, ChipCmd, CmdRxEnb);
4933                 rtl_pci_commit(tp);
4934                 break;
4935         default:
4936                 break;
4937         }
4938 }
4939
4940 static void rtl_shutdown(struct pci_dev *pdev)
4941 {
4942         struct rtl8169_private *tp = pci_get_drvdata(pdev);
4943
4944         rtnl_lock();
4945         rtl8169_net_suspend(tp);
4946         rtnl_unlock();
4947
4948         /* Restore original MAC address */
4949         rtl_rar_set(tp, tp->dev->perm_addr);
4950
4951         if (system_state == SYSTEM_POWER_OFF) {
4952                 if (tp->saved_wolopts) {
4953                         rtl_wol_suspend_quirk(tp);
4954                         rtl_wol_shutdown_quirk(tp);
4955                 }
4956
4957                 pci_wake_from_d3(pdev, true);
4958                 pci_set_power_state(pdev, PCI_D3hot);
4959         }
4960 }
4961
4962 static void rtl_remove_one(struct pci_dev *pdev)
4963 {
4964         struct rtl8169_private *tp = pci_get_drvdata(pdev);
4965
4966         if (pci_dev_run_wake(pdev))
4967                 pm_runtime_get_noresume(&pdev->dev);
4968
4969         unregister_netdev(tp->dev);
4970
4971         if (r8168_check_dash(tp))
4972                 rtl8168_driver_stop(tp);
4973
4974         rtl_release_firmware(tp);
4975
4976         /* restore original MAC address */
4977         rtl_rar_set(tp, tp->dev->perm_addr);
4978 }
4979
4980 static const struct net_device_ops rtl_netdev_ops = {
4981         .ndo_open               = rtl_open,
4982         .ndo_stop               = rtl8169_close,
4983         .ndo_get_stats64        = rtl8169_get_stats64,
4984         .ndo_start_xmit         = rtl8169_start_xmit,
4985         .ndo_features_check     = rtl8169_features_check,
4986         .ndo_tx_timeout         = rtl8169_tx_timeout,
4987         .ndo_validate_addr      = eth_validate_addr,
4988         .ndo_change_mtu         = rtl8169_change_mtu,
4989         .ndo_fix_features       = rtl8169_fix_features,
4990         .ndo_set_features       = rtl8169_set_features,
4991         .ndo_set_mac_address    = rtl_set_mac_address,
4992         .ndo_do_ioctl           = phy_do_ioctl_running,
4993         .ndo_set_rx_mode        = rtl_set_rx_mode,
4994 #ifdef CONFIG_NET_POLL_CONTROLLER
4995         .ndo_poll_controller    = rtl8169_netpoll,
4996 #endif
4997
4998 };
4999
5000 static void rtl_set_irq_mask(struct rtl8169_private *tp)
5001 {
5002         tp->irq_mask = RxOK | RxErr | TxOK | TxErr | LinkChg;
5003
5004         if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
5005                 tp->irq_mask |= SYSErr | RxOverflow | RxFIFOOver;
5006         else if (tp->mac_version == RTL_GIGA_MAC_VER_11)
5007                 /* special workaround needed */
5008                 tp->irq_mask |= RxFIFOOver;
5009         else
5010                 tp->irq_mask |= RxOverflow;
5011 }
5012
5013 static int rtl_alloc_irq(struct rtl8169_private *tp)
5014 {
5015         unsigned int flags;
5016
5017         switch (tp->mac_version) {
5018         case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
5019                 rtl_unlock_config_regs(tp);
5020                 RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable);
5021                 rtl_lock_config_regs(tp);
5022                 fallthrough;
5023         case RTL_GIGA_MAC_VER_07 ... RTL_GIGA_MAC_VER_17:
5024                 flags = PCI_IRQ_LEGACY;
5025                 break;
5026         default:
5027                 flags = PCI_IRQ_ALL_TYPES;
5028                 break;
5029         }
5030
5031         return pci_alloc_irq_vectors(tp->pci_dev, 1, 1, flags);
5032 }
5033
5034 static void rtl_read_mac_address(struct rtl8169_private *tp,
5035                                  u8 mac_addr[ETH_ALEN])
5036 {
5037         /* Get MAC address */
5038         if (rtl_is_8168evl_up(tp) && tp->mac_version != RTL_GIGA_MAC_VER_34) {
5039                 u32 value = rtl_eri_read(tp, 0xe0);
5040
5041                 mac_addr[0] = (value >>  0) & 0xff;
5042                 mac_addr[1] = (value >>  8) & 0xff;
5043                 mac_addr[2] = (value >> 16) & 0xff;
5044                 mac_addr[3] = (value >> 24) & 0xff;
5045
5046                 value = rtl_eri_read(tp, 0xe4);
5047                 mac_addr[4] = (value >>  0) & 0xff;
5048                 mac_addr[5] = (value >>  8) & 0xff;
5049         } else if (rtl_is_8125(tp)) {
5050                 rtl_read_mac_from_reg(tp, mac_addr, MAC0_BKP);
5051         }
5052 }
5053
5054 DECLARE_RTL_COND(rtl_link_list_ready_cond)
5055 {
5056         return RTL_R8(tp, MCU) & LINK_LIST_RDY;
5057 }
5058
5059 static void r8168g_wait_ll_share_fifo_ready(struct rtl8169_private *tp)
5060 {
5061         rtl_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42);
5062 }
5063
5064 static int r8169_mdio_read_reg(struct mii_bus *mii_bus, int phyaddr, int phyreg)
5065 {
5066         struct rtl8169_private *tp = mii_bus->priv;
5067
5068         if (phyaddr > 0)
5069                 return -ENODEV;
5070
5071         return rtl_readphy(tp, phyreg);
5072 }
5073
5074 static int r8169_mdio_write_reg(struct mii_bus *mii_bus, int phyaddr,
5075                                 int phyreg, u16 val)
5076 {
5077         struct rtl8169_private *tp = mii_bus->priv;
5078
5079         if (phyaddr > 0)
5080                 return -ENODEV;
5081
5082         rtl_writephy(tp, phyreg, val);
5083
5084         return 0;
5085 }
5086
5087 static int r8169_mdio_register(struct rtl8169_private *tp)
5088 {
5089         struct pci_dev *pdev = tp->pci_dev;
5090         struct mii_bus *new_bus;
5091         int ret;
5092
5093         new_bus = devm_mdiobus_alloc(&pdev->dev);
5094         if (!new_bus)
5095                 return -ENOMEM;
5096
5097         new_bus->name = "r8169";
5098         new_bus->priv = tp;
5099         new_bus->parent = &pdev->dev;
5100         new_bus->irq[0] = PHY_IGNORE_INTERRUPT;
5101         snprintf(new_bus->id, MII_BUS_ID_SIZE, "r8169-%x", pci_dev_id(pdev));
5102
5103         new_bus->read = r8169_mdio_read_reg;
5104         new_bus->write = r8169_mdio_write_reg;
5105
5106         ret = devm_mdiobus_register(&pdev->dev, new_bus);
5107         if (ret)
5108                 return ret;
5109
5110         tp->phydev = mdiobus_get_phy(new_bus, 0);
5111         if (!tp->phydev) {
5112                 return -ENODEV;
5113         } else if (!tp->phydev->drv) {
5114                 /* Most chip versions fail with the genphy driver.
5115                  * Therefore ensure that the dedicated PHY driver is loaded.
5116                  */
5117                 dev_err(&pdev->dev, "no dedicated PHY driver found for PHY ID 0x%08x, maybe realtek.ko needs to be added to initramfs?\n",
5118                         tp->phydev->phy_id);
5119                 return -EUNATCH;
5120         }
5121
5122         /* PHY will be woken up in rtl_open() */
5123         phy_suspend(tp->phydev);
5124
5125         return 0;
5126 }
5127
5128 static void rtl_hw_init_8168g(struct rtl8169_private *tp)
5129 {
5130         rtl_enable_rxdvgate(tp);
5131
5132         RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
5133         msleep(1);
5134         RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
5135
5136         r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0);
5137         r8168g_wait_ll_share_fifo_ready(tp);
5138
5139         r8168_mac_ocp_modify(tp, 0xe8de, 0, BIT(15));
5140         r8168g_wait_ll_share_fifo_ready(tp);
5141 }
5142
5143 static void rtl_hw_init_8125(struct rtl8169_private *tp)
5144 {
5145         rtl_enable_rxdvgate(tp);
5146
5147         RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
5148         msleep(1);
5149         RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
5150
5151         r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0);
5152         r8168g_wait_ll_share_fifo_ready(tp);
5153
5154         r8168_mac_ocp_write(tp, 0xc0aa, 0x07d0);
5155         r8168_mac_ocp_write(tp, 0xc0a6, 0x0150);
5156         r8168_mac_ocp_write(tp, 0xc01e, 0x5555);
5157         r8168g_wait_ll_share_fifo_ready(tp);
5158 }
5159
5160 static void rtl_hw_initialize(struct rtl8169_private *tp)
5161 {
5162         switch (tp->mac_version) {
5163         case RTL_GIGA_MAC_VER_49 ... RTL_GIGA_MAC_VER_52:
5164                 rtl8168ep_stop_cmac(tp);
5165                 fallthrough;
5166         case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_48:
5167                 rtl_hw_init_8168g(tp);
5168                 break;
5169         case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_63:
5170                 rtl_hw_init_8125(tp);
5171                 break;
5172         default:
5173                 break;
5174         }
5175 }
5176
5177 static int rtl_jumbo_max(struct rtl8169_private *tp)
5178 {
5179         /* Non-GBit versions don't support jumbo frames */
5180         if (!tp->supports_gmii)
5181                 return 0;
5182
5183         switch (tp->mac_version) {
5184         /* RTL8169 */
5185         case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
5186                 return JUMBO_7K;
5187         /* RTL8168b */
5188         case RTL_GIGA_MAC_VER_11:
5189         case RTL_GIGA_MAC_VER_12:
5190         case RTL_GIGA_MAC_VER_17:
5191                 return JUMBO_4K;
5192         /* RTL8168c */
5193         case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
5194                 return JUMBO_6K;
5195         default:
5196                 return JUMBO_9K;
5197         }
5198 }
5199
5200 static void rtl_disable_clk(void *data)
5201 {
5202         clk_disable_unprepare(data);
5203 }
5204
5205 static int rtl_get_ether_clk(struct rtl8169_private *tp)
5206 {
5207         struct device *d = tp_to_dev(tp);
5208         struct clk *clk;
5209         int rc;
5210
5211         clk = devm_clk_get(d, "ether_clk");
5212         if (IS_ERR(clk)) {
5213                 rc = PTR_ERR(clk);
5214                 if (rc == -ENOENT)
5215                         /* clk-core allows NULL (for suspend / resume) */
5216                         rc = 0;
5217                 else
5218                         dev_err_probe(d, rc, "failed to get clk\n");
5219         } else {
5220                 tp->clk = clk;
5221                 rc = clk_prepare_enable(clk);
5222                 if (rc)
5223                         dev_err(d, "failed to enable clk: %d\n", rc);
5224                 else
5225                         rc = devm_add_action_or_reset(d, rtl_disable_clk, clk);
5226         }
5227
5228         return rc;
5229 }
5230
5231 static void rtl_init_mac_address(struct rtl8169_private *tp)
5232 {
5233         struct net_device *dev = tp->dev;
5234         u8 *mac_addr = dev->dev_addr;
5235         int rc;
5236
5237         rc = eth_platform_get_mac_address(tp_to_dev(tp), mac_addr);
5238         if (!rc)
5239                 goto done;
5240
5241         rtl_read_mac_address(tp, mac_addr);
5242         if (is_valid_ether_addr(mac_addr))
5243                 goto done;
5244
5245         rtl_read_mac_from_reg(tp, mac_addr, MAC0);
5246         if (is_valid_ether_addr(mac_addr))
5247                 goto done;
5248
5249         eth_hw_addr_random(dev);
5250         dev_warn(tp_to_dev(tp), "can't read MAC address, setting random one\n");
5251 done:
5252         rtl_rar_set(tp, mac_addr);
5253 }
5254
5255 static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
5256 {
5257         struct rtl8169_private *tp;
5258         int jumbo_max, region, rc;
5259         enum mac_version chipset;
5260         struct net_device *dev;
5261         u16 xid;
5262
5263         dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp));
5264         if (!dev)
5265                 return -ENOMEM;
5266
5267         SET_NETDEV_DEV(dev, &pdev->dev);
5268         dev->netdev_ops = &rtl_netdev_ops;
5269         tp = netdev_priv(dev);
5270         tp->dev = dev;
5271         tp->pci_dev = pdev;
5272         tp->supports_gmii = ent->driver_data == RTL_CFG_NO_GBIT ? 0 : 1;
5273         tp->eee_adv = -1;
5274         tp->ocp_base = OCP_STD_PHY_BASE;
5275
5276         dev->tstats = devm_netdev_alloc_pcpu_stats(&pdev->dev,
5277                                                    struct pcpu_sw_netstats);
5278         if (!dev->tstats)
5279                 return -ENOMEM;
5280
5281         /* Get the *optional* external "ether_clk" used on some boards */
5282         rc = rtl_get_ether_clk(tp);
5283         if (rc)
5284                 return rc;
5285
5286         /* Disable ASPM completely as that cause random device stop working
5287          * problems as well as full system hangs for some PCIe devices users.
5288          */
5289         rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
5290                                           PCIE_LINK_STATE_L1);
5291         tp->aspm_manageable = !rc;
5292
5293         /* enable device (incl. PCI PM wakeup and hotplug setup) */
5294         rc = pcim_enable_device(pdev);
5295         if (rc < 0) {
5296                 dev_err(&pdev->dev, "enable failure\n");
5297                 return rc;
5298         }
5299
5300         if (pcim_set_mwi(pdev) < 0)
5301                 dev_info(&pdev->dev, "Mem-Wr-Inval unavailable\n");
5302
5303         /* use first MMIO region */
5304         region = ffs(pci_select_bars(pdev, IORESOURCE_MEM)) - 1;
5305         if (region < 0) {
5306                 dev_err(&pdev->dev, "no MMIO resource found\n");
5307                 return -ENODEV;
5308         }
5309
5310         /* check for weird/broken PCI region reporting */
5311         if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
5312                 dev_err(&pdev->dev, "Invalid PCI region size(s), aborting\n");
5313                 return -ENODEV;
5314         }
5315
5316         rc = pcim_iomap_regions(pdev, BIT(region), MODULENAME);
5317         if (rc < 0) {
5318                 dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
5319                 return rc;
5320         }
5321
5322         tp->mmio_addr = pcim_iomap_table(pdev)[region];
5323
5324         xid = (RTL_R32(tp, TxConfig) >> 20) & 0xfcf;
5325
5326         /* Identify chip attached to board */
5327         chipset = rtl8169_get_mac_version(xid, tp->supports_gmii);
5328         if (chipset == RTL_GIGA_MAC_NONE) {
5329                 dev_err(&pdev->dev, "unknown chip XID %03x\n", xid);
5330                 return -ENODEV;
5331         }
5332
5333         tp->mac_version = chipset;
5334
5335         tp->cp_cmd = RTL_R16(tp, CPlusCmd) & CPCMD_MASK;
5336
5337         if (sizeof(dma_addr_t) > 4 && tp->mac_version >= RTL_GIGA_MAC_VER_18 &&
5338             !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)))
5339                 dev->features |= NETIF_F_HIGHDMA;
5340
5341         rtl_init_rxcfg(tp);
5342
5343         rtl8169_irq_mask_and_ack(tp);
5344
5345         rtl_hw_initialize(tp);
5346
5347         rtl_hw_reset(tp);
5348
5349         pci_set_master(pdev);
5350
5351         rc = rtl_alloc_irq(tp);
5352         if (rc < 0) {
5353                 dev_err(&pdev->dev, "Can't allocate interrupt\n");
5354                 return rc;
5355         }
5356
5357         INIT_WORK(&tp->wk.work, rtl_task);
5358
5359         rtl_init_mac_address(tp);
5360
5361         dev->ethtool_ops = &rtl8169_ethtool_ops;
5362
5363         netif_napi_add(dev, &tp->napi, rtl8169_poll, NAPI_POLL_WEIGHT);
5364
5365         dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
5366                            NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
5367         dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
5368         dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
5369
5370         /*
5371          * Pretend we are using VLANs; This bypasses a nasty bug where
5372          * Interrupts stop flowing on high load on 8110SCd controllers.
5373          */
5374         if (tp->mac_version == RTL_GIGA_MAC_VER_05)
5375                 /* Disallow toggling */
5376                 dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
5377
5378         if (rtl_chip_supports_csum_v2(tp))
5379                 dev->hw_features |= NETIF_F_IPV6_CSUM;
5380
5381         dev->features |= dev->hw_features;
5382
5383         /* There has been a number of reports that using SG/TSO results in
5384          * tx timeouts. However for a lot of people SG/TSO works fine.
5385          * Therefore disable both features by default, but allow users to
5386          * enable them. Use at own risk!
5387          */
5388         if (rtl_chip_supports_csum_v2(tp)) {
5389                 dev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6;
5390                 dev->gso_max_size = RTL_GSO_MAX_SIZE_V2;
5391                 dev->gso_max_segs = RTL_GSO_MAX_SEGS_V2;
5392         } else {
5393                 dev->hw_features |= NETIF_F_SG | NETIF_F_TSO;
5394                 dev->gso_max_size = RTL_GSO_MAX_SIZE_V1;
5395                 dev->gso_max_segs = RTL_GSO_MAX_SEGS_V1;
5396         }
5397
5398         dev->hw_features |= NETIF_F_RXALL;
5399         dev->hw_features |= NETIF_F_RXFCS;
5400
5401         /* configure chip for default features */
5402         rtl8169_set_features(dev, dev->features);
5403
5404         jumbo_max = rtl_jumbo_max(tp);
5405         if (jumbo_max)
5406                 dev->max_mtu = jumbo_max;
5407
5408         rtl_set_irq_mask(tp);
5409
5410         tp->fw_name = rtl_chip_infos[chipset].fw_name;
5411
5412         tp->counters = dmam_alloc_coherent (&pdev->dev, sizeof(*tp->counters),
5413                                             &tp->counters_phys_addr,
5414                                             GFP_KERNEL);
5415         if (!tp->counters)
5416                 return -ENOMEM;
5417
5418         pci_set_drvdata(pdev, tp);
5419
5420         rc = r8169_mdio_register(tp);
5421         if (rc)
5422                 return rc;
5423
5424         /* chip gets powered up in rtl_open() */
5425         rtl_pll_power_down(tp);
5426
5427         rc = register_netdev(dev);
5428         if (rc)
5429                 return rc;
5430
5431         netdev_info(dev, "%s, %pM, XID %03x, IRQ %d\n",
5432                     rtl_chip_infos[chipset].name, dev->dev_addr, xid,
5433                     pci_irq_vector(pdev, 0));
5434
5435         if (jumbo_max)
5436                 netdev_info(dev, "jumbo features [frames: %d bytes, tx checksumming: %s]\n",
5437                             jumbo_max, tp->mac_version <= RTL_GIGA_MAC_VER_06 ?
5438                             "ok" : "ko");
5439
5440         if (r8168_check_dash(tp)) {
5441                 netdev_info(dev, "DASH enabled\n");
5442                 rtl8168_driver_start(tp);
5443         }
5444
5445         if (pci_dev_run_wake(pdev))
5446                 pm_runtime_put_sync(&pdev->dev);
5447
5448         return 0;
5449 }
5450
5451 static struct pci_driver rtl8169_pci_driver = {
5452         .name           = MODULENAME,
5453         .id_table       = rtl8169_pci_tbl,
5454         .probe          = rtl_init_one,
5455         .remove         = rtl_remove_one,
5456         .shutdown       = rtl_shutdown,
5457 #ifdef CONFIG_PM
5458         .driver.pm      = &rtl8169_pm_ops,
5459 #endif
5460 };
5461
5462 module_pci_driver(rtl8169_pci_driver);