drivers/net/ethernet/intel/e1000e/ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
   3
   4 /* ethtool support for e1000 */
   5
   6 #include <linux/netdevice.h>
   7 #include <linux/interrupt.h>
   8 #include <linux/ethtool.h>
   9 #include <linux/pci.h>
  10 #include <linux/slab.h>
  11 #include <linux/delay.h>
  12 #include <linux/vmalloc.h>
  13 #include <linux/pm_runtime.h>
  14
  15 #include "e1000.h"
  16
  17 enum { NETDEV_STATS, E1000_STATS };
  18
  19 struct e1000_stats {
  20         char stat_string[ETH_GSTRING_LEN];
  21         int type;
  22         int sizeof_stat;
  23         int stat_offset;
  24 };
  25
  26 static const char e1000e_priv_flags_strings[][ETH_GSTRING_LEN] = {
  27 #define E1000E_PRIV_FLAGS_S0IX_ENABLED  BIT(0)
  28         "s0ix-enabled",
  29 };
  30
  31 #define E1000E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(e1000e_priv_flags_strings)
  32
  33 #define E1000_STAT(str, m) { \
  34                 .stat_string = str, \
  35                 .type = E1000_STATS, \
  36                 .sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
  37                 .stat_offset = offsetof(struct e1000_adapter, m) }
  38 #define E1000_NETDEV_STAT(str, m) { \
  39                 .stat_string = str, \
  40                 .type = NETDEV_STATS, \
  41                 .sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
  42                 .stat_offset = offsetof(struct rtnl_link_stats64, m) }
  43
  44 static const struct e1000_stats e1000_gstrings_stats[] = {
  45         E1000_STAT("rx_packets", stats.gprc),
  46         E1000_STAT("tx_packets", stats.gptc),
  47         E1000_STAT("rx_bytes", stats.gorc),
  48         E1000_STAT("tx_bytes", stats.gotc),
  49         E1000_STAT("rx_broadcast", stats.bprc),
  50         E1000_STAT("tx_broadcast", stats.bptc),
  51         E1000_STAT("rx_multicast", stats.mprc),
  52         E1000_STAT("tx_multicast", stats.mptc),
  53         E1000_NETDEV_STAT("rx_errors", rx_errors),
  54         E1000_NETDEV_STAT("tx_errors", tx_errors),
  55         E1000_NETDEV_STAT("tx_dropped", tx_dropped),
  56         E1000_STAT("multicast", stats.mprc),
  57         E1000_STAT("collisions", stats.colc),
  58         E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
  59         E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
  60         E1000_STAT("rx_crc_errors", stats.crcerrs),
  61         E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
  62         E1000_STAT("rx_no_buffer_count", stats.rnbc),
  63         E1000_STAT("rx_missed_errors", stats.mpc),
  64         E1000_STAT("tx_aborted_errors", stats.ecol),
  65         E1000_STAT("tx_carrier_errors", stats.tncrs),
  66         E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
  67         E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
  68         E1000_STAT("tx_window_errors", stats.latecol),
  69         E1000_STAT("tx_abort_late_coll", stats.latecol),
  70         E1000_STAT("tx_deferred_ok", stats.dc),
  71         E1000_STAT("tx_single_coll_ok", stats.scc),
  72         E1000_STAT("tx_multi_coll_ok", stats.mcc),
  73         E1000_STAT("tx_timeout_count", tx_timeout_count),
  74         E1000_STAT("tx_restart_queue", restart_queue),
  75         E1000_STAT("rx_long_length_errors", stats.roc),
  76         E1000_STAT("rx_short_length_errors", stats.ruc),
  77         E1000_STAT("rx_align_errors", stats.algnerrc),
  78         E1000_STAT("tx_tcp_seg_good", stats.tsctc),
  79         E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
  80         E1000_STAT("rx_flow_control_xon", stats.xonrxc),
  81         E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
  82         E1000_STAT("tx_flow_control_xon", stats.xontxc),
  83         E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
  84         E1000_STAT("rx_csum_offload_good", hw_csum_good),
  85         E1000_STAT("rx_csum_offload_errors", hw_csum_err),
  86         E1000_STAT("rx_header_split", rx_hdr_split),
  87         E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
  88         E1000_STAT("tx_smbus", stats.mgptc),
  89         E1000_STAT("rx_smbus", stats.mgprc),
  90         E1000_STAT("dropped_smbus", stats.mgpdc),
  91         E1000_STAT("rx_dma_failed", rx_dma_failed),
  92         E1000_STAT("tx_dma_failed", tx_dma_failed),
  93         E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
  94         E1000_STAT("uncorr_ecc_errors", uncorr_errors),
  95         E1000_STAT("corr_ecc_errors", corr_errors),
  96         E1000_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
  97         E1000_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
  98 };
  99
 100 #define E1000_GLOBAL_STATS_LEN  ARRAY_SIZE(e1000_gstrings_stats)
 101 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
 102 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 103         "Register test  (offline)", "Eeprom test    (offline)",
 104         "Interrupt test (offline)", "Loopback test  (offline)",
 105         "Link test   (on/offline)"
 106 };
 107
 108 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 109
 110 static int e1000_get_link_ksettings(struct net_device *netdev,
 111                                     struct ethtool_link_ksettings *cmd)
 112 {
 113         u32 speed, supported, advertising, lp_advertising, lpa_t;
 114         struct e1000_adapter *adapter = netdev_priv(netdev);
 115         struct e1000_hw *hw = &adapter->hw;
 116
 117         if (hw->phy.media_type == e1000_media_type_copper) {
 118                 supported = (SUPPORTED_10baseT_Half |
 119                              SUPPORTED_10baseT_Full |
 120                              SUPPORTED_100baseT_Half |
 121                              SUPPORTED_100baseT_Full |
 122                              SUPPORTED_1000baseT_Full |
 123                              SUPPORTED_Asym_Pause |
 124                              SUPPORTED_Autoneg |
 125                              SUPPORTED_Pause |
 126                              SUPPORTED_TP);
 127                 if (hw->phy.type == e1000_phy_ife)
 128                         supported &= ~SUPPORTED_1000baseT_Full;
 129                 advertising = ADVERTISED_TP;
 130
 131                 if (hw->mac.autoneg == 1) {
 132                         advertising |= ADVERTISED_Autoneg;
 133                         /* the e1000 autoneg seems to match ethtool nicely */
 134                         advertising |= hw->phy.autoneg_advertised;
 135                 }
 136
 137                 cmd->base.port = PORT_TP;
 138                 cmd->base.phy_address = hw->phy.addr;
 139         } else {
 140                 supported   = (SUPPORTED_1000baseT_Full |
 141                                SUPPORTED_FIBRE |
 142                                SUPPORTED_Autoneg);
 143
 144                 advertising = (ADVERTISED_1000baseT_Full |
 145                                ADVERTISED_FIBRE |
 146                                ADVERTISED_Autoneg);
 147
 148                 cmd->base.port = PORT_FIBRE;
 149         }
 150
 151         speed = SPEED_UNKNOWN;
 152         cmd->base.duplex = DUPLEX_UNKNOWN;
 153
 154         if (netif_running(netdev)) {
 155                 if (netif_carrier_ok(netdev)) {
 156                         speed = adapter->link_speed;
 157                         cmd->base.duplex = adapter->link_duplex - 1;
 158                 }
 159         } else {
 160                 u32 status = er32(STATUS);
 161
 162                 if (status & E1000_STATUS_LU) {
 163                         if (status & E1000_STATUS_SPEED_1000)
 164                                 speed = SPEED_1000;
 165                         else if (status & E1000_STATUS_SPEED_100)
 166                                 speed = SPEED_100;
 167                         else
 168                                 speed = SPEED_10;
 169
 170                         if (status & E1000_STATUS_FD)
 171                                 cmd->base.duplex = DUPLEX_FULL;
 172                         else
 173                                 cmd->base.duplex = DUPLEX_HALF;
 174                 }
 175         }
 176
 177         cmd->base.speed = speed;
 178         cmd->base.autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 179                          hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 180
 181         /* MDI-X => 2; MDI =>1; Invalid =>0 */
 182         if ((hw->phy.media_type == e1000_media_type_copper) &&
 183             netif_carrier_ok(netdev))
 184                 cmd->base.eth_tp_mdix = hw->phy.is_mdix ?
 185                         ETH_TP_MDI_X : ETH_TP_MDI;
 186         else
 187                 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
 188
 189         if (hw->phy.mdix == AUTO_ALL_MODES)
 190                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 191         else
 192                 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
 193
 194         if (hw->phy.media_type != e1000_media_type_copper)
 195                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
 196
 197         lpa_t = mii_stat1000_to_ethtool_lpa_t(adapter->phy_regs.stat1000);
 198         lp_advertising = lpa_t |
 199         mii_lpa_to_ethtool_lpa_t(adapter->phy_regs.lpa);
 200
 201         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
 202                                                 supported);
 203         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
 204                                                 advertising);
 205         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.lp_advertising,
 206                                                 lp_advertising);
 207
 208         return 0;
 209 }
 210
 211 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 212 {
 213         struct e1000_mac_info *mac = &adapter->hw.mac;
 214
 215         mac->autoneg = 0;
 216
 217         /* Make sure dplx is at most 1 bit and lsb of speed is not set
 218          * for the switch() below to work
 219          */
 220         if ((spd & 1) || (dplx & ~1))
 221                 goto err_inval;
 222
 223         /* Fiber NICs only allow 1000 gbps Full duplex */
 224         if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 225             (spd != SPEED_1000) && (dplx != DUPLEX_FULL)) {
 226                 goto err_inval;
 227         }
 228
 229         switch (spd + dplx) {
 230         case SPEED_10 + DUPLEX_HALF:
 231                 mac->forced_speed_duplex = ADVERTISE_10_HALF;
 232                 break;
 233         case SPEED_10 + DUPLEX_FULL:
 234                 mac->forced_speed_duplex = ADVERTISE_10_FULL;
 235                 break;
 236         case SPEED_100 + DUPLEX_HALF:
 237                 mac->forced_speed_duplex = ADVERTISE_100_HALF;
 238                 break;
 239         case SPEED_100 + DUPLEX_FULL:
 240                 mac->forced_speed_duplex = ADVERTISE_100_FULL;
 241                 break;
 242         case SPEED_1000 + DUPLEX_FULL:
 243                 if (adapter->hw.phy.media_type == e1000_media_type_copper) {
 244                         mac->autoneg = 1;
 245                         adapter->hw.phy.autoneg_advertised =
 246                                 ADVERTISE_1000_FULL;
 247                 } else {
 248                         mac->forced_speed_duplex = ADVERTISE_1000_FULL;
 249                 }
 250                 break;
 251         case SPEED_1000 + DUPLEX_HALF:  /* not supported */
 252         default:
 253                 goto err_inval;
 254         }
 255
 256         /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
 257         adapter->hw.phy.mdix = AUTO_ALL_MODES;
 258
 259         return 0;
 260
 261 err_inval:
 262         e_err("Unsupported Speed/Duplex configuration\n");
 263         return -EINVAL;
 264 }
 265
 266 static int e1000_set_link_ksettings(struct net_device *netdev,
 267                                     const struct ethtool_link_ksettings *cmd)
 268 {
 269         struct e1000_adapter *adapter = netdev_priv(netdev);
 270         struct e1000_hw *hw = &adapter->hw;
 271         int ret_val = 0;
 272         u32 advertising;
 273
 274         ethtool_convert_link_mode_to_legacy_u32(&advertising,
 275                                                 cmd->link_modes.advertising);
 276
 277         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 278          * cannot be changed
 279          */
 280         if (hw->phy.ops.check_reset_block &&
 281             hw->phy.ops.check_reset_block(hw)) {
 282                 e_err("Cannot change link characteristics when SoL/IDER is active.\n");
 283                 return -EINVAL;
 284         }
 285
 286         /* MDI setting is only allowed when autoneg enabled because
 287          * some hardware doesn't allow MDI setting when speed or
 288          * duplex is forced.
 289          */
 290         if (cmd->base.eth_tp_mdix_ctrl) {
 291                 if (hw->phy.media_type != e1000_media_type_copper)
 292                         return -EOPNOTSUPP;
 293
 294                 if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
 295                     (cmd->base.autoneg != AUTONEG_ENABLE)) {
 296                         e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
 297                         return -EINVAL;
 298                 }
 299         }
 300
 301         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 302                 usleep_range(1000, 2000);
 303
 304         if (cmd->base.autoneg == AUTONEG_ENABLE) {
 305                 hw->mac.autoneg = 1;
 306                 if (hw->phy.media_type == e1000_media_type_fiber)
 307                         hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 308                             ADVERTISED_FIBRE | ADVERTISED_Autoneg;
 309                 else
 310                         hw->phy.autoneg_advertised = advertising |
 311                             ADVERTISED_TP | ADVERTISED_Autoneg;
 312                 advertising = hw->phy.autoneg_advertised;
 313                 if (adapter->fc_autoneg)
 314                         hw->fc.requested_mode = e1000_fc_default;
 315         } else {
 316                 u32 speed = cmd->base.speed;
 317                 /* calling this overrides forced MDI setting */
 318                 if (e1000_set_spd_dplx(adapter, speed, cmd->base.duplex)) {
 319                         ret_val = -EINVAL;
 320                         goto out;
 321                 }
 322         }
 323
 324         /* MDI-X => 2; MDI => 1; Auto => 3 */
 325         if (cmd->base.eth_tp_mdix_ctrl) {
 326                 /* fix up the value for auto (3 => 0) as zero is mapped
 327                  * internally to auto
 328                  */
 329                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
 330                         hw->phy.mdix = AUTO_ALL_MODES;
 331                 else
 332                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
 333         }
 334
 335         /* reset the link */
 336         if (netif_running(adapter->netdev)) {
 337                 e1000e_down(adapter, true);
 338                 e1000e_up(adapter);
 339         } else {
 340                 e1000e_reset(adapter);
 341         }
 342
 343 out:
 344         clear_bit(__E1000_RESETTING, &adapter->state);
 345         return ret_val;
 346 }
 347
 348 static void e1000_get_pauseparam(struct net_device *netdev,
 349                                  struct ethtool_pauseparam *pause)
 350 {
 351         struct e1000_adapter *adapter = netdev_priv(netdev);
 352         struct e1000_hw *hw = &adapter->hw;
 353
 354         pause->autoneg =
 355             (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 356
 357         if (hw->fc.current_mode == e1000_fc_rx_pause) {
 358                 pause->rx_pause = 1;
 359         } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 360                 pause->tx_pause = 1;
 361         } else if (hw->fc.current_mode == e1000_fc_full) {
 362                 pause->rx_pause = 1;
 363                 pause->tx_pause = 1;
 364         }
 365 }
 366
 367 static int e1000_set_pauseparam(struct net_device *netdev,
 368                                 struct ethtool_pauseparam *pause)
 369 {
 370         struct e1000_adapter *adapter = netdev_priv(netdev);
 371         struct e1000_hw *hw = &adapter->hw;
 372         int retval = 0;
 373
 374         adapter->fc_autoneg = pause->autoneg;
 375
 376         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 377                 usleep_range(1000, 2000);
 378
 379         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 380                 hw->fc.requested_mode = e1000_fc_default;
 381                 if (netif_running(adapter->netdev)) {
 382                         e1000e_down(adapter, true);
 383                         e1000e_up(adapter);
 384                 } else {
 385                         e1000e_reset(adapter);
 386                 }
 387         } else {
 388                 if (pause->rx_pause && pause->tx_pause)
 389                         hw->fc.requested_mode = e1000_fc_full;
 390                 else if (pause->rx_pause && !pause->tx_pause)
 391                         hw->fc.requested_mode = e1000_fc_rx_pause;
 392                 else if (!pause->rx_pause && pause->tx_pause)
 393                         hw->fc.requested_mode = e1000_fc_tx_pause;
 394                 else if (!pause->rx_pause && !pause->tx_pause)
 395                         hw->fc.requested_mode = e1000_fc_none;
 396
 397                 hw->fc.current_mode = hw->fc.requested_mode;
 398
 399                 if (hw->phy.media_type == e1000_media_type_fiber) {
 400                         retval = hw->mac.ops.setup_link(hw);
 401                         /* implicit goto out */
 402                 } else {
 403                         retval = e1000e_force_mac_fc(hw);
 404                         if (retval)
 405                                 goto out;
 406                         e1000e_set_fc_watermarks(hw);
 407                 }
 408         }
 409
 410 out:
 411         clear_bit(__E1000_RESETTING, &adapter->state);
 412         return retval;
 413 }
 414
 415 static u32 e1000_get_msglevel(struct net_device *netdev)
 416 {
 417         struct e1000_adapter *adapter = netdev_priv(netdev);
 418         return adapter->msg_enable;
 419 }
 420
 421 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 422 {
 423         struct e1000_adapter *adapter = netdev_priv(netdev);
 424         adapter->msg_enable = data;
 425 }
 426
 427 static int e1000_get_regs_len(struct net_device __always_unused *netdev)
 428 {
 429 #define E1000_REGS_LEN 32       /* overestimate */
 430         return E1000_REGS_LEN * sizeof(u32);
 431 }
 432
 433 static void e1000_get_regs(struct net_device *netdev,
 434                            struct ethtool_regs *regs, void *p)
 435 {
 436         struct e1000_adapter *adapter = netdev_priv(netdev);
 437         struct e1000_hw *hw = &adapter->hw;
 438         u32 *regs_buff = p;
 439         u16 phy_data;
 440
 441         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 442
 443         regs->version = (1u << 24) |
 444                         (adapter->pdev->revision << 16) |
 445                         adapter->pdev->device;
 446
 447         regs_buff[0] = er32(CTRL);
 448         regs_buff[1] = er32(STATUS);
 449
 450         regs_buff[2] = er32(RCTL);
 451         regs_buff[3] = er32(RDLEN(0));
 452         regs_buff[4] = er32(RDH(0));
 453         regs_buff[5] = er32(RDT(0));
 454         regs_buff[6] = er32(RDTR);
 455
 456         regs_buff[7] = er32(TCTL);
 457         regs_buff[8] = er32(TDLEN(0));
 458         regs_buff[9] = er32(TDH(0));
 459         regs_buff[10] = er32(TDT(0));
 460         regs_buff[11] = er32(TIDV);
 461
 462         regs_buff[12] = adapter->hw.phy.type;   /* PHY type (IGP=1, M88=0) */
 463
 464         /* ethtool doesn't use anything past this point, so all this
 465          * code is likely legacy junk for apps that may or may not exist
 466          */
 467         if (hw->phy.type == e1000_phy_m88) {
 468                 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 469                 regs_buff[13] = (u32)phy_data; /* cable length */
 470                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 471                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 472                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 473                 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 474                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 475                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 476                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 477                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 478                 /* phy receive errors */
 479                 regs_buff[22] = adapter->phy_stats.receive_errors;
 480                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 481         }
 482         regs_buff[21] = 0;      /* was idle_errors */
 483         e1e_rphy(hw, MII_STAT1000, &phy_data);
 484         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 485         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 486 }
 487
 488 static int e1000_get_eeprom_len(struct net_device *netdev)
 489 {
 490         struct e1000_adapter *adapter = netdev_priv(netdev);
 491         return adapter->hw.nvm.word_size * 2;
 492 }
 493
 494 static int e1000_get_eeprom(struct net_device *netdev,
 495                             struct ethtool_eeprom *eeprom, u8 *bytes)
 496 {
 497         struct e1000_adapter *adapter = netdev_priv(netdev);
 498         struct e1000_hw *hw = &adapter->hw;
 499         u16 *eeprom_buff;
 500         int first_word;
 501         int last_word;
 502         int ret_val = 0;
 503         u16 i;
 504
 505         if (eeprom->len == 0)
 506                 return -EINVAL;
 507
 508         eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 509
 510         first_word = eeprom->offset >> 1;
 511         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 512
 513         eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
 514                                     GFP_KERNEL);
 515         if (!eeprom_buff)
 516                 return -ENOMEM;
 517
 518         if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 519                 ret_val = e1000_read_nvm(hw, first_word,
 520                                          last_word - first_word + 1,
 521                                          eeprom_buff);
 522         } else {
 523                 for (i = 0; i < last_word - first_word + 1; i++) {
 524                         ret_val = e1000_read_nvm(hw, first_word + i, 1,
 525                                                  &eeprom_buff[i]);
 526                         if (ret_val)
 527                                 break;
 528                 }
 529         }
 530
 531         if (ret_val) {
 532                 /* a read error occurred, throw away the result */
 533                 memset(eeprom_buff, 0xff, sizeof(u16) *
 534                        (last_word - first_word + 1));
 535         } else {
 536                 /* Device's eeprom is always little-endian, word addressable */
 537                 for (i = 0; i < last_word - first_word + 1; i++)
 538                         le16_to_cpus(&eeprom_buff[i]);
 539         }
 540
 541         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 542         kfree(eeprom_buff);
 543
 544         return ret_val;
 545 }
 546
 547 static int e1000_set_eeprom(struct net_device *netdev,
 548                             struct ethtool_eeprom *eeprom, u8 *bytes)
 549 {
 550         struct e1000_adapter *adapter = netdev_priv(netdev);
 551         struct e1000_hw *hw = &adapter->hw;
 552         u16 *eeprom_buff;
 553         void *ptr;
 554         int max_len;
 555         int first_word;
 556         int last_word;
 557         int ret_val = 0;
 558         u16 i;
 559
 560         if (eeprom->len == 0)
 561                 return -EOPNOTSUPP;
 562
 563         if (eeprom->magic !=
 564             (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 565                 return -EFAULT;
 566
 567         if (adapter->flags & FLAG_READ_ONLY_NVM)
 568                 return -EINVAL;
 569
 570         max_len = hw->nvm.word_size * 2;
 571
 572         first_word = eeprom->offset >> 1;
 573         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 574         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 575         if (!eeprom_buff)
 576                 return -ENOMEM;
 577
 578         ptr = (void *)eeprom_buff;
 579
 580         if (eeprom->offset & 1) {
 581                 /* need read/modify/write of first changed EEPROM word */
 582                 /* only the second byte of the word is being modified */
 583                 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 584                 ptr++;
 585         }
 586         if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
 587                 /* need read/modify/write of last changed EEPROM word */
 588                 /* only the first byte of the word is being modified */
 589                 ret_val = e1000_read_nvm(hw, last_word, 1,
 590                                          &eeprom_buff[last_word - first_word]);
 591
 592         if (ret_val)
 593                 goto out;
 594
 595         /* Device's eeprom is always little-endian, word addressable */
 596         for (i = 0; i < last_word - first_word + 1; i++)
 597                 le16_to_cpus(&eeprom_buff[i]);
 598
 599         memcpy(ptr, bytes, eeprom->len);
 600
 601         for (i = 0; i < last_word - first_word + 1; i++)
 602                 cpu_to_le16s(&eeprom_buff[i]);
 603
 604         ret_val = e1000_write_nvm(hw, first_word,
 605                                   last_word - first_word + 1, eeprom_buff);
 606
 607         if (ret_val)
 608                 goto out;
 609
 610         /* Update the checksum over the first part of the EEPROM if needed
 611          * and flush shadow RAM for applicable controllers
 612          */
 613         if ((first_word <= NVM_CHECKSUM_REG) ||
 614             (hw->mac.type == e1000_82583) ||
 615             (hw->mac.type == e1000_82574) ||
 616             (hw->mac.type == e1000_82573))
 617                 ret_val = e1000e_update_nvm_checksum(hw);
 618
 619 out:
 620         kfree(eeprom_buff);
 621         return ret_val;
 622 }
 623
 624 static void e1000_get_drvinfo(struct net_device *netdev,
 625                               struct ethtool_drvinfo *drvinfo)
 626 {
 627         struct e1000_adapter *adapter = netdev_priv(netdev);
 628
 629         strscpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver));
 630
 631         /* EEPROM image version # is reported as firmware version # for
 632          * PCI-E controllers
 633          */
 634         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
 635                  "%d.%d-%d",
 636                  FIELD_GET(0xF000, adapter->eeprom_vers),
 637                  FIELD_GET(0x0FF0, adapter->eeprom_vers),
 638                  (adapter->eeprom_vers & 0x000F));
 639
 640         strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
 641                 sizeof(drvinfo->bus_info));
 642 }
 643
 644 static void e1000_get_ringparam(struct net_device *netdev,
 645                                 struct ethtool_ringparam *ring,
 646                                 struct kernel_ethtool_ringparam *kernel_ring,
 647                                 struct netlink_ext_ack *extack)
 648 {
 649         struct e1000_adapter *adapter = netdev_priv(netdev);
 650
 651         ring->rx_max_pending = E1000_MAX_RXD;
 652         ring->tx_max_pending = E1000_MAX_TXD;
 653         ring->rx_pending = adapter->rx_ring_count;
 654         ring->tx_pending = adapter->tx_ring_count;
 655 }
 656
 657 static int e1000_set_ringparam(struct net_device *netdev,
 658                                struct ethtool_ringparam *ring,
 659                                struct kernel_ethtool_ringparam *kernel_ring,
 660                                struct netlink_ext_ack *extack)
 661 {
 662         struct e1000_adapter *adapter = netdev_priv(netdev);
 663         struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
 664         int err = 0, size = sizeof(struct e1000_ring);
 665         bool set_tx = false, set_rx = false;
 666         u16 new_rx_count, new_tx_count;
 667
 668         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 669                 return -EINVAL;
 670
 671         new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
 672                                E1000_MAX_RXD);
 673         new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 674
 675         new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
 676                                E1000_MAX_TXD);
 677         new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 678
 679         if ((new_tx_count == adapter->tx_ring_count) &&
 680             (new_rx_count == adapter->rx_ring_count))
 681                 /* nothing to do */
 682                 return 0;
 683
 684         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 685                 usleep_range(1000, 2000);
 686
 687         if (!netif_running(adapter->netdev)) {
 688                 /* Set counts now and allocate resources during open() */
 689                 adapter->tx_ring->count = new_tx_count;
 690                 adapter->rx_ring->count = new_rx_count;
 691                 adapter->tx_ring_count = new_tx_count;
 692                 adapter->rx_ring_count = new_rx_count;
 693                 goto clear_reset;
 694         }
 695
 696         set_tx = (new_tx_count != adapter->tx_ring_count);
 697         set_rx = (new_rx_count != adapter->rx_ring_count);
 698
 699         /* Allocate temporary storage for ring updates */
 700         if (set_tx) {
 701                 temp_tx = vmalloc(size);
 702                 if (!temp_tx) {
 703                         err = -ENOMEM;
 704                         goto free_temp;
 705                 }
 706         }
 707         if (set_rx) {
 708                 temp_rx = vmalloc(size);
 709                 if (!temp_rx) {
 710                         err = -ENOMEM;
 711                         goto free_temp;
 712                 }
 713         }
 714
 715         e1000e_down(adapter, true);
 716
 717         /* We can't just free everything and then setup again, because the
 718          * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring
 719          * structs.  First, attempt to allocate new resources...
 720          */
 721         if (set_tx) {
 722                 memcpy(temp_tx, adapter->tx_ring, size);
 723                 temp_tx->count = new_tx_count;
 724                 err = e1000e_setup_tx_resources(temp_tx);
 725                 if (err)
 726                         goto err_setup;
 727         }
 728         if (set_rx) {
 729                 memcpy(temp_rx, adapter->rx_ring, size);
 730                 temp_rx->count = new_rx_count;
 731                 err = e1000e_setup_rx_resources(temp_rx);
 732                 if (err)
 733                         goto err_setup_rx;
 734         }
 735
 736         /* ...then free the old resources and copy back any new ring data */
 737         if (set_tx) {
 738                 e1000e_free_tx_resources(adapter->tx_ring);
 739                 memcpy(adapter->tx_ring, temp_tx, size);
 740                 adapter->tx_ring_count = new_tx_count;
 741         }
 742         if (set_rx) {
 743                 e1000e_free_rx_resources(adapter->rx_ring);
 744                 memcpy(adapter->rx_ring, temp_rx, size);
 745                 adapter->rx_ring_count = new_rx_count;
 746         }
 747
 748 err_setup_rx:
 749         if (err && set_tx)
 750                 e1000e_free_tx_resources(temp_tx);
 751 err_setup:
 752         e1000e_up(adapter);
 753 free_temp:
 754         vfree(temp_tx);
 755         vfree(temp_rx);
 756 clear_reset:
 757         clear_bit(__E1000_RESETTING, &adapter->state);
 758         return err;
 759 }
 760
 761 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 762                              int reg, int offset, u32 mask, u32 write)
 763 {
 764         u32 pat, val;
 765         static const u32 test[] = {
 766                 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 767         };
 768         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 769                 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 770                                       (test[pat] & write));
 771                 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 772                 if (val != (test[pat] & write & mask)) {
 773                         e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
 774                               reg + (offset << 2), val,
 775                               (test[pat] & write & mask));
 776                         *data = reg;
 777                         return true;
 778                 }
 779         }
 780         return false;
 781 }
 782
 783 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 784                               int reg, u32 mask, u32 write)
 785 {
 786         u32 val;
 787
 788         __ew32(&adapter->hw, reg, write & mask);
 789         val = __er32(&adapter->hw, reg);
 790         if ((write & mask) != (val & mask)) {
 791                 e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
 792                       reg, (val & mask), (write & mask));
 793                 *data = reg;
 794                 return true;
 795         }
 796         return false;
 797 }
 798
 799 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 800         do {                                                                   \
 801                 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 802                         return 1;                                              \
 803         } while (0)
 804 #define REG_PATTERN_TEST(reg, mask, write)                                     \
 805         REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 806
 807 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
 808         do {                                                                   \
 809                 if (reg_set_and_check(adapter, data, reg, mask, write))        \
 810                         return 1;                                              \
 811         } while (0)
 812
 813 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 814 {
 815         struct e1000_hw *hw = &adapter->hw;
 816         struct e1000_mac_info *mac = &adapter->hw.mac;
 817         u32 value;
 818         u32 before;
 819         u32 after;
 820         u32 i;
 821         u32 toggle;
 822         u32 mask;
 823         u32 wlock_mac = 0;
 824
 825         /* The status register is Read Only, so a write should fail.
 826          * Some bits that get toggled are ignored.  There are several bits
 827          * on newer hardware that are r/w.
 828          */
 829         switch (mac->type) {
 830         case e1000_82571:
 831         case e1000_82572:
 832         case e1000_80003es2lan:
 833                 toggle = 0x7FFFF3FF;
 834                 break;
 835         default:
 836                 toggle = 0x7FFFF033;
 837                 break;
 838         }
 839
 840         before = er32(STATUS);
 841         value = (er32(STATUS) & toggle);
 842         ew32(STATUS, toggle);
 843         after = er32(STATUS) & toggle;
 844         if (value != after) {
 845                 e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
 846                       after, value);
 847                 *data = 1;
 848                 return 1;
 849         }
 850         /* restore previous status */
 851         ew32(STATUS, before);
 852
 853         if (!(adapter->flags & FLAG_IS_ICH)) {
 854                 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 855                 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 856                 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 857                 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 858         }
 859
 860         REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 861         REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 862         REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
 863         REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
 864         REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
 865         REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 866         REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 867         REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 868         REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 869         REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
 870
 871         REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 872
 873         before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 874         REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 875         REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 876
 877         REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 878         REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 879         if (!(adapter->flags & FLAG_IS_ICH))
 880                 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 881         REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 882         REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 883         mask = 0x8003FFFF;
 884         switch (mac->type) {
 885         case e1000_ich10lan:
 886         case e1000_pchlan:
 887         case e1000_pch2lan:
 888         case e1000_pch_lpt:
 889         case e1000_pch_spt:
 890         case e1000_pch_cnp:
 891         case e1000_pch_tgp:
 892         case e1000_pch_adp:
 893         case e1000_pch_mtp:
 894         case e1000_pch_lnp:
 895         case e1000_pch_ptp:
 896         case e1000_pch_nvp:
 897                 mask |= BIT(18);
 898                 break;
 899         default:
 900                 break;
 901         }
 902
 903         if (mac->type >= e1000_pch_lpt)
 904                 wlock_mac = FIELD_GET(E1000_FWSM_WLOCK_MAC_MASK, er32(FWSM));
 905
 906         for (i = 0; i < mac->rar_entry_count; i++) {
 907                 if (mac->type >= e1000_pch_lpt) {
 908                         /* Cannot test write-protected SHRAL[n] registers */
 909                         if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
 910                                 continue;
 911
 912                         /* SHRAH[9] different than the others */
 913                         if (i == 10)
 914                                 mask |= BIT(30);
 915                         else
 916                                 mask &= ~BIT(30);
 917                 }
 918                 if (mac->type == e1000_pch2lan) {
 919                         /* SHRAH[0,1,2] different than previous */
 920                         if (i == 1)
 921                                 mask &= 0xFFF4FFFF;
 922                         /* SHRAH[3] different than SHRAH[0,1,2] */
 923                         if (i == 4)
 924                                 mask |= BIT(30);
 925                         /* RAR[1-6] owned by management engine - skipping */
 926                         if (i > 0)
 927                                 i += 6;
 928                 }
 929
 930                 REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask,
 931                                        0xFFFFFFFF);
 932                 /* reset index to actual value */
 933                 if ((mac->type == e1000_pch2lan) && (i > 6))
 934                         i -= 6;
 935         }
 936
 937         for (i = 0; i < mac->mta_reg_count; i++)
 938                 REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 939
 940         *data = 0;
 941
 942         return 0;
 943 }
 944
 945 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 946 {
 947         u16 temp;
 948         u16 checksum = 0;
 949         u16 i;
 950
 951         *data = 0;
 952         /* Read and add up the contents of the EEPROM */
 953         for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 954                 if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 955                         *data = 1;
 956                         return *data;
 957                 }
 958                 checksum += temp;
 959         }
 960
 961         /* If Checksum is not Correct return error else test passed */
 962         if ((checksum != (u16)NVM_SUM) && !(*data))
 963                 *data = 2;
 964
 965         return *data;
 966 }
 967
 968 static irqreturn_t e1000_test_intr(int __always_unused irq, void *data)
 969 {
 970         struct net_device *netdev = (struct net_device *)data;
 971         struct e1000_adapter *adapter = netdev_priv(netdev);
 972         struct e1000_hw *hw = &adapter->hw;
 973
 974         adapter->test_icr |= er32(ICR);
 975
 976         return IRQ_HANDLED;
 977 }
 978
 979 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 980 {
 981         struct net_device *netdev = adapter->netdev;
 982         struct e1000_hw *hw = &adapter->hw;
 983         u32 mask;
 984         u32 shared_int = 1;
 985         u32 irq = adapter->pdev->irq;
 986         int i;
 987         int ret_val = 0;
 988         int int_mode = E1000E_INT_MODE_LEGACY;
 989
 990         *data = 0;
 991
 992         /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
 993         if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
 994                 int_mode = adapter->int_mode;
 995                 e1000e_reset_interrupt_capability(adapter);
 996                 adapter->int_mode = E1000E_INT_MODE_LEGACY;
 997                 e1000e_set_interrupt_capability(adapter);
 998         }
 999         /* Hook up test interrupt handler just for this test */
1000         if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
1001                          netdev)) {
1002                 shared_int = 0;
1003         } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name,
1004                                netdev)) {
1005                 *data = 1;
1006                 ret_val = -1;
1007                 goto out;
1008         }
1009         e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
1010
1011         /* Disable all the interrupts */
1012         ew32(IMC, 0xFFFFFFFF);
1013         e1e_flush();
1014         usleep_range(10000, 11000);
1015
1016         /* Test each interrupt */
1017         for (i = 0; i < 10; i++) {
1018                 /* Interrupt to test */
1019                 mask = BIT(i);
1020
1021                 if (adapter->flags & FLAG_IS_ICH) {
1022                         switch (mask) {
1023                         case E1000_ICR_RXSEQ:
1024                                 continue;
1025                         case 0x00000100:
1026                                 if (adapter->hw.mac.type == e1000_ich8lan ||
1027                                     adapter->hw.mac.type == e1000_ich9lan)
1028                                         continue;
1029                                 break;
1030                         default:
1031                                 break;
1032                         }
1033                 }
1034
1035                 if (!shared_int) {
1036                         /* Disable the interrupt to be reported in
1037                          * the cause register and then force the same
1038                          * interrupt and see if one gets posted.  If
1039                          * an interrupt was posted to the bus, the
1040                          * test failed.
1041                          */
1042                         adapter->test_icr = 0;
1043                         ew32(IMC, mask);
1044                         ew32(ICS, mask);
1045                         e1e_flush();
1046                         usleep_range(10000, 11000);
1047
1048                         if (adapter->test_icr & mask) {
1049                                 *data = 3;
1050                                 break;
1051                         }
1052                 }
1053
1054                 /* Enable the interrupt to be reported in
1055                  * the cause register and then force the same
1056                  * interrupt and see if one gets posted.  If
1057                  * an interrupt was not posted to the bus, the
1058                  * test failed.
1059                  */
1060                 adapter->test_icr = 0;
1061                 ew32(IMS, mask);
1062                 ew32(ICS, mask);
1063                 e1e_flush();
1064                 usleep_range(10000, 11000);
1065
1066                 if (!(adapter->test_icr & mask)) {
1067                         *data = 4;
1068                         break;
1069                 }
1070
1071                 if (!shared_int) {
1072                         /* Disable the other interrupts to be reported in
1073                          * the cause register and then force the other
1074                          * interrupts and see if any get posted.  If
1075                          * an interrupt was posted to the bus, the
1076                          * test failed.
1077                          */
1078                         adapter->test_icr = 0;
1079                         ew32(IMC, ~mask & 0x00007FFF);
1080                         ew32(ICS, ~mask & 0x00007FFF);
1081                         e1e_flush();
1082                         usleep_range(10000, 11000);
1083
1084                         if (adapter->test_icr) {
1085                                 *data = 5;
1086                                 break;
1087                         }
1088                 }
1089         }
1090
1091         /* Disable all the interrupts */
1092         ew32(IMC, 0xFFFFFFFF);
1093         e1e_flush();
1094         usleep_range(10000, 11000);
1095
1096         /* Unhook test interrupt handler */
1097         free_irq(irq, netdev);
1098
1099 out:
1100         if (int_mode == E1000E_INT_MODE_MSIX) {
1101                 e1000e_reset_interrupt_capability(adapter);
1102                 adapter->int_mode = int_mode;
1103                 e1000e_set_interrupt_capability(adapter);
1104         }
1105
1106         return ret_val;
1107 }
1108
1109 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1110 {
1111         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1112         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1113         struct pci_dev *pdev = adapter->pdev;
1114         struct e1000_buffer *buffer_info;
1115         int i;
1116
1117         if (tx_ring->desc && tx_ring->buffer_info) {
1118                 for (i = 0; i < tx_ring->count; i++) {
1119                         buffer_info = &tx_ring->buffer_info[i];
1120
1121                         if (buffer_info->dma)
1122                                 dma_unmap_single(&pdev->dev,
1123                                                  buffer_info->dma,
1124                                                  buffer_info->length,
1125                                                  DMA_TO_DEVICE);
1126                         dev_kfree_skb(buffer_info->skb);
1127                 }
1128         }
1129
1130         if (rx_ring->desc && rx_ring->buffer_info) {
1131                 for (i = 0; i < rx_ring->count; i++) {
1132                         buffer_info = &rx_ring->buffer_info[i];
1133
1134                         if (buffer_info->dma)
1135                                 dma_unmap_single(&pdev->dev,
1136                                                  buffer_info->dma,
1137                                                  2048, DMA_FROM_DEVICE);
1138                         dev_kfree_skb(buffer_info->skb);
1139                 }
1140         }
1141
1142         if (tx_ring->desc) {
1143                 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1144                                   tx_ring->dma);
1145                 tx_ring->desc = NULL;
1146         }
1147         if (rx_ring->desc) {
1148                 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1149                                   rx_ring->dma);
1150                 rx_ring->desc = NULL;
1151         }
1152
1153         kfree(tx_ring->buffer_info);
1154         tx_ring->buffer_info = NULL;
1155         kfree(rx_ring->buffer_info);
1156         rx_ring->buffer_info = NULL;
1157 }
1158
1159 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1160 {
1161         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1162         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1163         struct pci_dev *pdev = adapter->pdev;
1164         struct e1000_hw *hw = &adapter->hw;
1165         u32 rctl;
1166         int i;
1167         int ret_val;
1168
1169         /* Setup Tx descriptor ring and Tx buffers */
1170
1171         if (!tx_ring->count)
1172                 tx_ring->count = E1000_DEFAULT_TXD;
1173
1174         tx_ring->buffer_info = kcalloc(tx_ring->count,
1175                                        sizeof(struct e1000_buffer), GFP_KERNEL);
1176         if (!tx_ring->buffer_info) {
1177                 ret_val = 1;
1178                 goto err_nomem;
1179         }
1180
1181         tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1182         tx_ring->size = ALIGN(tx_ring->size, 4096);
1183         tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1184                                            &tx_ring->dma, GFP_KERNEL);
1185         if (!tx_ring->desc) {
1186                 ret_val = 2;
1187                 goto err_nomem;
1188         }
1189         tx_ring->next_to_use = 0;
1190         tx_ring->next_to_clean = 0;
1191
1192         ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF));
1193         ew32(TDBAH(0), ((u64)tx_ring->dma >> 32));
1194         ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
1195         ew32(TDH(0), 0);
1196         ew32(TDT(0), 0);
1197         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1198              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1199              E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1200
1201         for (i = 0; i < tx_ring->count; i++) {
1202                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1203                 struct sk_buff *skb;
1204                 unsigned int skb_size = 1024;
1205
1206                 skb = alloc_skb(skb_size, GFP_KERNEL);
1207                 if (!skb) {
1208                         ret_val = 3;
1209                         goto err_nomem;
1210                 }
1211                 skb_put(skb, skb_size);
1212                 tx_ring->buffer_info[i].skb = skb;
1213                 tx_ring->buffer_info[i].length = skb->len;
1214                 tx_ring->buffer_info[i].dma =
1215                     dma_map_single(&pdev->dev, skb->data, skb->len,
1216                                    DMA_TO_DEVICE);
1217                 if (dma_mapping_error(&pdev->dev,
1218                                       tx_ring->buffer_info[i].dma)) {
1219                         ret_val = 4;
1220                         goto err_nomem;
1221                 }
1222                 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1223                 tx_desc->lower.data = cpu_to_le32(skb->len);
1224                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1225                                                    E1000_TXD_CMD_IFCS |
1226                                                    E1000_TXD_CMD_RS);
1227                 tx_desc->upper.data = 0;
1228         }
1229
1230         /* Setup Rx descriptor ring and Rx buffers */
1231
1232         if (!rx_ring->count)
1233                 rx_ring->count = E1000_DEFAULT_RXD;
1234
1235         rx_ring->buffer_info = kcalloc(rx_ring->count,
1236                                        sizeof(struct e1000_buffer), GFP_KERNEL);
1237         if (!rx_ring->buffer_info) {
1238                 ret_val = 5;
1239                 goto err_nomem;
1240         }
1241
1242         rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
1243         rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1244                                            &rx_ring->dma, GFP_KERNEL);
1245         if (!rx_ring->desc) {
1246                 ret_val = 6;
1247                 goto err_nomem;
1248         }
1249         rx_ring->next_to_use = 0;
1250         rx_ring->next_to_clean = 0;
1251
1252         rctl = er32(RCTL);
1253         if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1254                 ew32(RCTL, rctl & ~E1000_RCTL_EN);
1255         ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF));
1256         ew32(RDBAH(0), ((u64)rx_ring->dma >> 32));
1257         ew32(RDLEN(0), rx_ring->size);
1258         ew32(RDH(0), 0);
1259         ew32(RDT(0), 0);
1260         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1261             E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1262             E1000_RCTL_SBP | E1000_RCTL_SECRC |
1263             E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1264             (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1265         ew32(RCTL, rctl);
1266
1267         for (i = 0; i < rx_ring->count; i++) {
1268                 union e1000_rx_desc_extended *rx_desc;
1269                 struct sk_buff *skb;
1270
1271                 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1272                 if (!skb) {
1273                         ret_val = 7;
1274                         goto err_nomem;
1275                 }
1276                 skb_reserve(skb, NET_IP_ALIGN);
1277                 rx_ring->buffer_info[i].skb = skb;
1278                 rx_ring->buffer_info[i].dma =
1279                     dma_map_single(&pdev->dev, skb->data, 2048,
1280                                    DMA_FROM_DEVICE);
1281                 if (dma_mapping_error(&pdev->dev,
1282                                       rx_ring->buffer_info[i].dma)) {
1283                         ret_val = 8;
1284                         goto err_nomem;
1285                 }
1286                 rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
1287                 rx_desc->read.buffer_addr =
1288                     cpu_to_le64(rx_ring->buffer_info[i].dma);
1289                 memset(skb->data, 0x00, skb->len);
1290         }
1291
1292         return 0;
1293
1294 err_nomem:
1295         e1000_free_desc_rings(adapter);
1296         return ret_val;
1297 }
1298
1299 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1300 {
1301         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1302         e1e_wphy(&adapter->hw, 29, 0x001F);
1303         e1e_wphy(&adapter->hw, 30, 0x8FFC);
1304         e1e_wphy(&adapter->hw, 29, 0x001A);
1305         e1e_wphy(&adapter->hw, 30, 0x8FF0);
1306 }
1307
1308 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1309 {
1310         struct e1000_hw *hw = &adapter->hw;
1311         u32 ctrl_reg = 0;
1312         u16 phy_reg = 0;
1313         s32 ret_val = 0;
1314
1315         hw->mac.autoneg = 0;
1316
1317         if (hw->phy.type == e1000_phy_ife) {
1318                 /* force 100, set loopback */
1319                 e1e_wphy(hw, MII_BMCR, 0x6100);
1320
1321                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1322                 ctrl_reg = er32(CTRL);
1323                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1324                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1325                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1326                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1327                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1328
1329                 ew32(CTRL, ctrl_reg);
1330                 e1e_flush();
1331                 usleep_range(500, 1000);
1332
1333                 return 0;
1334         }
1335
1336         /* Specific PHY configuration for loopback */
1337         switch (hw->phy.type) {
1338         case e1000_phy_m88:
1339                 /* Auto-MDI/MDIX Off */
1340                 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1341                 /* reset to update Auto-MDI/MDIX */
1342                 e1e_wphy(hw, MII_BMCR, 0x9140);
1343                 /* autoneg off */
1344                 e1e_wphy(hw, MII_BMCR, 0x8140);
1345                 break;
1346         case e1000_phy_gg82563:
1347                 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1348                 break;
1349         case e1000_phy_bm:
1350                 /* Set Default MAC Interface speed to 1GB */
1351                 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1352                 phy_reg &= ~0x0007;
1353                 phy_reg |= 0x006;
1354                 e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1355                 /* Assert SW reset for above settings to take effect */
1356                 hw->phy.ops.commit(hw);
1357                 usleep_range(1000, 2000);
1358                 /* Force Full Duplex */
1359                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1360                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1361                 /* Set Link Up (in force link) */
1362                 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1363                 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1364                 /* Force Link */
1365                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1366                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1367                 /* Set Early Link Enable */
1368                 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1369                 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1370                 break;
1371         case e1000_phy_82577:
1372         case e1000_phy_82578:
1373                 /* Workaround: K1 must be disabled for stable 1Gbps operation */
1374                 ret_val = hw->phy.ops.acquire(hw);
1375                 if (ret_val) {
1376                         e_err("Cannot setup 1Gbps loopback.\n");
1377                         return ret_val;
1378                 }
1379                 e1000_configure_k1_ich8lan(hw, false);
1380                 hw->phy.ops.release(hw);
1381                 break;
1382         case e1000_phy_82579:
1383                 /* Disable PHY energy detect power down */
1384                 e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1385                 e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~BIT(3));
1386                 /* Disable full chip energy detect */
1387                 e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1388                 e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1389                 /* Enable loopback on the PHY */
1390                 e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1391                 break;
1392         default:
1393                 break;
1394         }
1395
1396         /* force 1000, set loopback */
1397         e1e_wphy(hw, MII_BMCR, 0x4140);
1398         msleep(250);
1399
1400         /* Now set up the MAC to the same speed/duplex as the PHY. */
1401         ctrl_reg = er32(CTRL);
1402         ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1403         ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1404                      E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1405                      E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1406                      E1000_CTRL_FD);     /* Force Duplex to FULL */
1407
1408         if (adapter->flags & FLAG_IS_ICH)
1409                 ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1410
1411         if (hw->phy.media_type == e1000_media_type_copper &&
1412             hw->phy.type == e1000_phy_m88) {
1413                 ctrl_reg |= E1000_CTRL_ILOS;    /* Invert Loss of Signal */
1414         } else {
1415                 /* Set the ILOS bit on the fiber Nic if half duplex link is
1416                  * detected.
1417                  */
1418                 if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1419                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1420         }
1421
1422         ew32(CTRL, ctrl_reg);
1423
1424         /* Disable the receiver on the PHY so when a cable is plugged in, the
1425          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1426          */
1427         if (hw->phy.type == e1000_phy_m88)
1428                 e1000_phy_disable_receiver(adapter);
1429
1430         usleep_range(500, 1000);
1431
1432         return 0;
1433 }
1434
1435 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1436 {
1437         struct e1000_hw *hw = &adapter->hw;
1438         u32 ctrl = er32(CTRL);
1439         int link;
1440
1441         /* special requirements for 82571/82572 fiber adapters */
1442
1443         /* jump through hoops to make sure link is up because serdes
1444          * link is hardwired up
1445          */
1446         ctrl |= E1000_CTRL_SLU;
1447         ew32(CTRL, ctrl);
1448
1449         /* disable autoneg */
1450         ctrl = er32(TXCW);
1451         ctrl &= ~BIT(31);
1452         ew32(TXCW, ctrl);
1453
1454         link = (er32(STATUS) & E1000_STATUS_LU);
1455
1456         if (!link) {
1457                 /* set invert loss of signal */
1458                 ctrl = er32(CTRL);
1459                 ctrl |= E1000_CTRL_ILOS;
1460                 ew32(CTRL, ctrl);
1461         }
1462
1463         /* special write to serdes control register to enable SerDes analog
1464          * loopback
1465          */
1466         ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
1467         e1e_flush();
1468         usleep_range(10000, 11000);
1469
1470         return 0;
1471 }
1472
1473 /* only call this for fiber/serdes connections to es2lan */
1474 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1475 {
1476         struct e1000_hw *hw = &adapter->hw;
1477         u32 ctrlext = er32(CTRL_EXT);
1478         u32 ctrl = er32(CTRL);
1479
1480         /* save CTRL_EXT to restore later, reuse an empty variable (unused
1481          * on mac_type 80003es2lan)
1482          */
1483         adapter->tx_fifo_head = ctrlext;
1484
1485         /* clear the serdes mode bits, putting the device into mac loopback */
1486         ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1487         ew32(CTRL_EXT, ctrlext);
1488
1489         /* force speed to 1000/FD, link up */
1490         ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1491         ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1492                  E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1493         ew32(CTRL, ctrl);
1494
1495         /* set mac loopback */
1496         ctrl = er32(RCTL);
1497         ctrl |= E1000_RCTL_LBM_MAC;
1498         ew32(RCTL, ctrl);
1499
1500         /* set testing mode parameters (no need to reset later) */
1501 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1502 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1503         ew32(KMRNCTRLSTA,
1504              (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1505
1506         return 0;
1507 }
1508
1509 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1510 {
1511         struct e1000_hw *hw = &adapter->hw;
1512         u32 rctl, fext_nvm11, tarc0;
1513
1514         if (hw->mac.type >= e1000_pch_spt) {
1515                 fext_nvm11 = er32(FEXTNVM11);
1516                 fext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX;
1517                 ew32(FEXTNVM11, fext_nvm11);
1518                 tarc0 = er32(TARC(0));
1519                 /* clear bits 28 & 29 (control of MULR concurrent requests) */
1520                 tarc0 &= 0xcfffffff;
1521                 /* set bit 29 (value of MULR requests is now 2) */
1522                 tarc0 |= 0x20000000;
1523                 ew32(TARC(0), tarc0);
1524         }
1525         if (hw->phy.media_type == e1000_media_type_fiber ||
1526             hw->phy.media_type == e1000_media_type_internal_serdes) {
1527                 switch (hw->mac.type) {
1528                 case e1000_80003es2lan:
1529                         return e1000_set_es2lan_mac_loopback(adapter);
1530                 case e1000_82571:
1531                 case e1000_82572:
1532                         return e1000_set_82571_fiber_loopback(adapter);
1533                 default:
1534                         rctl = er32(RCTL);
1535                         rctl |= E1000_RCTL_LBM_TCVR;
1536                         ew32(RCTL, rctl);
1537                         return 0;
1538                 }
1539         } else if (hw->phy.media_type == e1000_media_type_copper) {
1540                 return e1000_integrated_phy_loopback(adapter);
1541         }
1542
1543         return 7;
1544 }
1545
1546 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1547 {
1548         struct e1000_hw *hw = &adapter->hw;
1549         u32 rctl, fext_nvm11, tarc0;
1550         u16 phy_reg;
1551
1552         rctl = er32(RCTL);
1553         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1554         ew32(RCTL, rctl);
1555
1556         switch (hw->mac.type) {
1557         case e1000_pch_spt:
1558         case e1000_pch_cnp:
1559         case e1000_pch_tgp:
1560         case e1000_pch_adp:
1561         case e1000_pch_mtp:
1562         case e1000_pch_lnp:
1563         case e1000_pch_ptp:
1564         case e1000_pch_nvp:
1565                 fext_nvm11 = er32(FEXTNVM11);
1566                 fext_nvm11 &= ~E1000_FEXTNVM11_DISABLE_MULR_FIX;
1567                 ew32(FEXTNVM11, fext_nvm11);
1568                 tarc0 = er32(TARC(0));
1569                 /* clear bits 28 & 29 (control of MULR concurrent requests) */
1570                 /* set bit 29 (value of MULR requests is now 0) */
1571                 tarc0 &= 0xcfffffff;
1572                 ew32(TARC(0), tarc0);
1573                 fallthrough;
1574         case e1000_80003es2lan:
1575                 if (hw->phy.media_type == e1000_media_type_fiber ||
1576                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1577                         /* restore CTRL_EXT, stealing space from tx_fifo_head */
1578                         ew32(CTRL_EXT, adapter->tx_fifo_head);
1579                         adapter->tx_fifo_head = 0;
1580                 }
1581                 fallthrough;
1582         case e1000_82571:
1583         case e1000_82572:
1584                 if (hw->phy.media_type == e1000_media_type_fiber ||
1585                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1586                         ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1587                         e1e_flush();
1588                         usleep_range(10000, 11000);
1589                         break;
1590                 }
1591                 fallthrough;
1592         default:
1593                 hw->mac.autoneg = 1;
1594                 if (hw->phy.type == e1000_phy_gg82563)
1595                         e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1596                 e1e_rphy(hw, MII_BMCR, &phy_reg);
1597                 if (phy_reg & BMCR_LOOPBACK) {
1598                         phy_reg &= ~BMCR_LOOPBACK;
1599                         e1e_wphy(hw, MII_BMCR, phy_reg);
1600                         if (hw->phy.ops.commit)
1601                                 hw->phy.ops.commit(hw);
1602                 }
1603                 break;
1604         }
1605 }
1606
1607 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1608                                       unsigned int frame_size)
1609 {
1610         memset(skb->data, 0xFF, frame_size);
1611         frame_size &= ~1;
1612         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1613         skb->data[frame_size / 2 + 10] = 0xBE;
1614         skb->data[frame_size / 2 + 12] = 0xAF;
1615 }
1616
1617 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1618                                     unsigned int frame_size)
1619 {
1620         frame_size &= ~1;
1621         if (*(skb->data + 3) == 0xFF)
1622                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1623                     (*(skb->data + frame_size / 2 + 12) == 0xAF))
1624                         return 0;
1625         return 13;
1626 }
1627
1628 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1629 {
1630         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1631         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1632         struct pci_dev *pdev = adapter->pdev;
1633         struct e1000_hw *hw = &adapter->hw;
1634         struct e1000_buffer *buffer_info;
1635         int i, j, k, l;
1636         int lc;
1637         int good_cnt;
1638         int ret_val = 0;
1639         unsigned long time;
1640
1641         ew32(RDT(0), rx_ring->count - 1);
1642
1643         /* Calculate the loop count based on the largest descriptor ring
1644          * The idea is to wrap the largest ring a number of times using 64
1645          * send/receive pairs during each loop
1646          */
1647
1648         if (rx_ring->count <= tx_ring->count)
1649                 lc = ((tx_ring->count / 64) * 2) + 1;
1650         else
1651                 lc = ((rx_ring->count / 64) * 2) + 1;
1652
1653         k = 0;
1654         l = 0;
1655         /* loop count loop */
1656         for (j = 0; j <= lc; j++) {
1657                 /* send the packets */
1658                 for (i = 0; i < 64; i++) {
1659                         buffer_info = &tx_ring->buffer_info[k];
1660
1661                         e1000_create_lbtest_frame(buffer_info->skb, 1024);
1662                         dma_sync_single_for_device(&pdev->dev,
1663                                                    buffer_info->dma,
1664                                                    buffer_info->length,
1665                                                    DMA_TO_DEVICE);
1666                         k++;
1667                         if (k == tx_ring->count)
1668                                 k = 0;
1669                 }
1670                 ew32(TDT(0), k);
1671                 e1e_flush();
1672                 msleep(200);
1673                 time = jiffies; /* set the start time for the receive */
1674                 good_cnt = 0;
1675                 /* receive the sent packets */
1676                 do {
1677                         buffer_info = &rx_ring->buffer_info[l];
1678
1679                         dma_sync_single_for_cpu(&pdev->dev,
1680                                                 buffer_info->dma, 2048,
1681                                                 DMA_FROM_DEVICE);
1682
1683                         ret_val = e1000_check_lbtest_frame(buffer_info->skb,
1684                                                            1024);
1685                         if (!ret_val)
1686                                 good_cnt++;
1687                         l++;
1688                         if (l == rx_ring->count)
1689                                 l = 0;
1690                         /* time + 20 msecs (200 msecs on 2.4) is more than
1691                          * enough time to complete the receives, if it's
1692                          * exceeded, break and error off
1693                          */
1694                 } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1695                 if (good_cnt != 64) {
1696                         ret_val = 13;   /* ret_val is the same as mis-compare */
1697                         break;
1698                 }
1699                 if (time_after(jiffies, time + 20)) {
1700                         ret_val = 14;   /* error code for time out error */
1701                         break;
1702                 }
1703         }
1704         return ret_val;
1705 }
1706
1707 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1708 {
1709         struct e1000_hw *hw = &adapter->hw;
1710
1711         /* PHY loopback cannot be performed if SoL/IDER sessions are active */
1712         if (hw->phy.ops.check_reset_block &&
1713             hw->phy.ops.check_reset_block(hw)) {
1714                 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1715                 *data = 0;
1716                 goto out;
1717         }
1718
1719         *data = e1000_setup_desc_rings(adapter);
1720         if (*data)
1721                 goto out;
1722
1723         *data = e1000_setup_loopback_test(adapter);
1724         if (*data)
1725                 goto err_loopback;
1726
1727         *data = e1000_run_loopback_test(adapter);
1728         e1000_loopback_cleanup(adapter);
1729
1730 err_loopback:
1731         e1000_free_desc_rings(adapter);
1732 out:
1733         return *data;
1734 }
1735
1736 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1737 {
1738         struct e1000_hw *hw = &adapter->hw;
1739
1740         *data = 0;
1741         if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1742                 int i = 0;
1743
1744                 hw->mac.serdes_has_link = false;
1745
1746                 /* On some blade server designs, link establishment
1747                  * could take as long as 2-3 minutes
1748                  */
1749                 do {
1750                         hw->mac.ops.check_for_link(hw);
1751                         if (hw->mac.serdes_has_link)
1752                                 return *data;
1753                         msleep(20);
1754                 } while (i++ < 3750);
1755
1756                 *data = 1;
1757         } else {
1758                 hw->mac.ops.check_for_link(hw);
1759                 if (hw->mac.autoneg)
1760                         /* On some Phy/switch combinations, link establishment
1761                          * can take a few seconds more than expected.
1762                          */
1763                         msleep_interruptible(5000);
1764
1765                 if (!(er32(STATUS) & E1000_STATUS_LU))
1766                         *data = 1;
1767         }
1768         return *data;
1769 }
1770
1771 static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
1772                                  int sset)
1773 {
1774         switch (sset) {
1775         case ETH_SS_TEST:
1776                 return E1000_TEST_LEN;
1777         case ETH_SS_STATS:
1778                 return E1000_STATS_LEN;
1779         case ETH_SS_PRIV_FLAGS:
1780                 return E1000E_PRIV_FLAGS_STR_LEN;
1781         default:
1782                 return -EOPNOTSUPP;
1783         }
1784 }
1785
1786 static void e1000_diag_test(struct net_device *netdev,
1787                             struct ethtool_test *eth_test, u64 *data)
1788 {
1789         struct e1000_adapter *adapter = netdev_priv(netdev);
1790         u16 autoneg_advertised;
1791         u8 forced_speed_duplex;
1792         u8 autoneg;
1793         bool if_running = netif_running(netdev);
1794
1795         set_bit(__E1000_TESTING, &adapter->state);
1796
1797         if (!if_running) {
1798                 /* Get control of and reset hardware */
1799                 if (adapter->flags & FLAG_HAS_AMT)
1800                         e1000e_get_hw_control(adapter);
1801
1802                 e1000e_power_up_phy(adapter);
1803
1804                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1805                 e1000e_reset(adapter);
1806                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1807         }
1808
1809         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1810                 /* Offline tests */
1811
1812                 /* save speed, duplex, autoneg settings */
1813                 autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1814                 forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1815                 autoneg = adapter->hw.mac.autoneg;
1816
1817                 e_info("offline testing starting\n");
1818
1819                 if (if_running)
1820                         /* indicate we're in test mode */
1821                         e1000e_close(netdev);
1822
1823                 if (e1000_reg_test(adapter, &data[0]))
1824                         eth_test->flags |= ETH_TEST_FL_FAILED;
1825
1826                 e1000e_reset(adapter);
1827                 if (e1000_eeprom_test(adapter, &data[1]))
1828                         eth_test->flags |= ETH_TEST_FL_FAILED;
1829
1830                 e1000e_reset(adapter);
1831                 if (e1000_intr_test(adapter, &data[2]))
1832                         eth_test->flags |= ETH_TEST_FL_FAILED;
1833
1834                 e1000e_reset(adapter);
1835                 if (e1000_loopback_test(adapter, &data[3]))
1836                         eth_test->flags |= ETH_TEST_FL_FAILED;
1837
1838                 /* force this routine to wait until autoneg complete/timeout */
1839                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1840                 e1000e_reset(adapter);
1841                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1842
1843                 if (e1000_link_test(adapter, &data[4]))
1844                         eth_test->flags |= ETH_TEST_FL_FAILED;
1845
1846                 /* restore speed, duplex, autoneg settings */
1847                 adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1848                 adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1849                 adapter->hw.mac.autoneg = autoneg;
1850                 e1000e_reset(adapter);
1851
1852                 clear_bit(__E1000_TESTING, &adapter->state);
1853                 if (if_running)
1854                         e1000e_open(netdev);
1855         } else {
1856                 /* Online tests */
1857
1858                 e_info("online testing starting\n");
1859
1860                 /* register, eeprom, intr and loopback tests not run online */
1861                 data[0] = 0;
1862                 data[1] = 0;
1863                 data[2] = 0;
1864                 data[3] = 0;
1865
1866                 if (e1000_link_test(adapter, &data[4]))
1867                         eth_test->flags |= ETH_TEST_FL_FAILED;
1868
1869                 clear_bit(__E1000_TESTING, &adapter->state);
1870         }
1871
1872         if (!if_running) {
1873                 e1000e_reset(adapter);
1874
1875                 if (adapter->flags & FLAG_HAS_AMT)
1876                         e1000e_release_hw_control(adapter);
1877         }
1878
1879         msleep_interruptible(4 * 1000);
1880 }
1881
1882 static void e1000_get_wol(struct net_device *netdev,
1883                           struct ethtool_wolinfo *wol)
1884 {
1885         struct e1000_adapter *adapter = netdev_priv(netdev);
1886
1887         wol->supported = 0;
1888         wol->wolopts = 0;
1889
1890         if (!(adapter->flags & FLAG_HAS_WOL) ||
1891             !device_can_wakeup(&adapter->pdev->dev))
1892                 return;
1893
1894         wol->supported = WAKE_UCAST | WAKE_MCAST |
1895             WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1896
1897         /* apply any specific unsupported masks here */
1898         if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1899                 wol->supported &= ~WAKE_UCAST;
1900
1901                 if (adapter->wol & E1000_WUFC_EX)
1902                         e_err("Interface does not support directed (unicast) frame wake-up packets\n");
1903         }
1904
1905         if (adapter->wol & E1000_WUFC_EX)
1906                 wol->wolopts |= WAKE_UCAST;
1907         if (adapter->wol & E1000_WUFC_MC)
1908                 wol->wolopts |= WAKE_MCAST;
1909         if (adapter->wol & E1000_WUFC_BC)
1910                 wol->wolopts |= WAKE_BCAST;
1911         if (adapter->wol & E1000_WUFC_MAG)
1912                 wol->wolopts |= WAKE_MAGIC;
1913         if (adapter->wol & E1000_WUFC_LNKC)
1914                 wol->wolopts |= WAKE_PHY;
1915 }
1916
1917 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1918 {
1919         struct e1000_adapter *adapter = netdev_priv(netdev);
1920
1921         if (!(adapter->flags & FLAG_HAS_WOL) ||
1922             !device_can_wakeup(&adapter->pdev->dev) ||
1923             (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1924                               WAKE_MAGIC | WAKE_PHY)))
1925                 return -EOPNOTSUPP;
1926
1927         /* these settings will always override what we currently have */
1928         adapter->wol = 0;
1929
1930         if (wol->wolopts & WAKE_UCAST)
1931                 adapter->wol |= E1000_WUFC_EX;
1932         if (wol->wolopts & WAKE_MCAST)
1933                 adapter->wol |= E1000_WUFC_MC;
1934         if (wol->wolopts & WAKE_BCAST)
1935                 adapter->wol |= E1000_WUFC_BC;
1936         if (wol->wolopts & WAKE_MAGIC)
1937                 adapter->wol |= E1000_WUFC_MAG;
1938         if (wol->wolopts & WAKE_PHY)
1939                 adapter->wol |= E1000_WUFC_LNKC;
1940
1941         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1942
1943         return 0;
1944 }
1945
1946 static int e1000_set_phys_id(struct net_device *netdev,
1947                              enum ethtool_phys_id_state state)
1948 {
1949         struct e1000_adapter *adapter = netdev_priv(netdev);
1950         struct e1000_hw *hw = &adapter->hw;
1951
1952         switch (state) {
1953         case ETHTOOL_ID_ACTIVE:
1954                 pm_runtime_get_sync(netdev->dev.parent);
1955
1956                 if (!hw->mac.ops.blink_led)
1957                         return 2;       /* cycle on/off twice per second */
1958
1959                 hw->mac.ops.blink_led(hw);
1960                 break;
1961
1962         case ETHTOOL_ID_INACTIVE:
1963                 if (hw->phy.type == e1000_phy_ife)
1964                         e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1965                 hw->mac.ops.led_off(hw);
1966                 hw->mac.ops.cleanup_led(hw);
1967                 pm_runtime_put_sync(netdev->dev.parent);
1968                 break;
1969
1970         case ETHTOOL_ID_ON:
1971                 hw->mac.ops.led_on(hw);
1972                 break;
1973
1974         case ETHTOOL_ID_OFF:
1975                 hw->mac.ops.led_off(hw);
1976                 break;
1977         }
1978
1979         return 0;
1980 }
1981
1982 static int e1000_get_coalesce(struct net_device *netdev,
1983                               struct ethtool_coalesce *ec,
1984                               struct kernel_ethtool_coalesce *kernel_coal,
1985                               struct netlink_ext_ack *extack)
1986 {
1987         struct e1000_adapter *adapter = netdev_priv(netdev);
1988
1989         if (adapter->itr_setting <= 4)
1990                 ec->rx_coalesce_usecs = adapter->itr_setting;
1991         else
1992                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1993
1994         return 0;
1995 }
1996
1997 static int e1000_set_coalesce(struct net_device *netdev,
1998                               struct ethtool_coalesce *ec,
1999                               struct kernel_ethtool_coalesce *kernel_coal,
2000                               struct netlink_ext_ack *extack)
2001 {
2002         struct e1000_adapter *adapter = netdev_priv(netdev);
2003
2004         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
2005             ((ec->rx_coalesce_usecs > 4) &&
2006              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
2007             (ec->rx_coalesce_usecs == 2))
2008                 return -EINVAL;
2009
2010         if (ec->rx_coalesce_usecs == 4) {
2011                 adapter->itr_setting = 4;
2012                 adapter->itr = adapter->itr_setting;
2013         } else if (ec->rx_coalesce_usecs <= 3) {
2014                 adapter->itr = 20000;
2015                 adapter->itr_setting = ec->rx_coalesce_usecs;
2016         } else {
2017                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
2018                 adapter->itr_setting = adapter->itr & ~3;
2019         }
2020
2021         if (adapter->itr_setting != 0)
2022                 e1000e_write_itr(adapter, adapter->itr);
2023         else
2024                 e1000e_write_itr(adapter, 0);
2025
2026         return 0;
2027 }
2028
2029 static int e1000_nway_reset(struct net_device *netdev)
2030 {
2031         struct e1000_adapter *adapter = netdev_priv(netdev);
2032
2033         if (!netif_running(netdev))
2034                 return -EAGAIN;
2035
2036         if (!adapter->hw.mac.autoneg)
2037                 return -EINVAL;
2038
2039         e1000e_reinit_locked(adapter);
2040
2041         return 0;
2042 }
2043
2044 static void e1000_get_ethtool_stats(struct net_device *netdev,
2045                                     struct ethtool_stats __always_unused *stats,
2046                                     u64 *data)
2047 {
2048         struct e1000_adapter *adapter = netdev_priv(netdev);
2049         struct rtnl_link_stats64 net_stats;
2050         int i;
2051         char *p = NULL;
2052
2053         dev_get_stats(netdev, &net_stats);
2054
2055         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2056                 switch (e1000_gstrings_stats[i].type) {
2057                 case NETDEV_STATS:
2058                         p = (char *)&net_stats +
2059                             e1000_gstrings_stats[i].stat_offset;
2060                         break;
2061                 case E1000_STATS:
2062                         p = (char *)adapter +
2063                             e1000_gstrings_stats[i].stat_offset;
2064                         break;
2065                 default:
2066                         data[i] = 0;
2067                         continue;
2068                 }
2069
2070                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
2071                            sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
2072         }
2073 }
2074
2075 static void e1000_get_strings(struct net_device __always_unused *netdev,
2076                               u32 stringset, u8 *data)
2077 {
2078         u8 *p = data;
2079         int i;
2080
2081         switch (stringset) {
2082         case ETH_SS_TEST:
2083                 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
2084                 break;
2085         case ETH_SS_STATS:
2086                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2087                         memcpy(p, e1000_gstrings_stats[i].stat_string,
2088                                ETH_GSTRING_LEN);
2089                         p += ETH_GSTRING_LEN;
2090                 }
2091                 break;
2092         case ETH_SS_PRIV_FLAGS:
2093                 memcpy(data, e1000e_priv_flags_strings,
2094                        E1000E_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
2095                 break;
2096         }
2097 }
2098
2099 static int e1000_get_rxnfc(struct net_device *netdev,
2100                            struct ethtool_rxnfc *info,
2101                            u32 __always_unused *rule_locs)
2102 {
2103         info->data = 0;
2104
2105         switch (info->cmd) {
2106         case ETHTOOL_GRXFH: {
2107                 struct e1000_adapter *adapter = netdev_priv(netdev);
2108                 struct e1000_hw *hw = &adapter->hw;
2109                 u32 mrqc;
2110
2111                 mrqc = er32(MRQC);
2112
2113                 if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
2114                         return 0;
2115
2116                 switch (info->flow_type) {
2117                 case TCP_V4_FLOW:
2118                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
2119                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2120                         fallthrough;
2121                 case UDP_V4_FLOW:
2122                 case SCTP_V4_FLOW:
2123                 case AH_ESP_V4_FLOW:
2124                 case IPV4_FLOW:
2125                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
2126                                 info->data |= RXH_IP_SRC | RXH_IP_DST;
2127                         break;
2128                 case TCP_V6_FLOW:
2129                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
2130                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2131                         fallthrough;
2132                 case UDP_V6_FLOW:
2133                 case SCTP_V6_FLOW:
2134                 case AH_ESP_V6_FLOW:
2135                 case IPV6_FLOW:
2136                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
2137                                 info->data |= RXH_IP_SRC | RXH_IP_DST;
2138                         break;
2139                 default:
2140                         break;
2141                 }
2142                 return 0;
2143         }
2144         default:
2145                 return -EOPNOTSUPP;
2146         }
2147 }
2148
2149 static int e1000e_get_eee(struct net_device *netdev, struct ethtool_keee *edata)
2150 {
2151         struct e1000_adapter *adapter = netdev_priv(netdev);
2152         struct e1000_hw *hw = &adapter->hw;
2153         u16 cap_addr, lpa_addr, pcs_stat_addr, phy_data;
2154         u32 ret_val;
2155
2156         if (!(adapter->flags2 & FLAG2_HAS_EEE))
2157                 return -EOPNOTSUPP;
2158
2159         switch (hw->phy.type) {
2160         case e1000_phy_82579:
2161                 cap_addr = I82579_EEE_CAPABILITY;
2162                 lpa_addr = I82579_EEE_LP_ABILITY;
2163                 pcs_stat_addr = I82579_EEE_PCS_STATUS;
2164                 break;
2165         case e1000_phy_i217:
2166                 cap_addr = I217_EEE_CAPABILITY;
2167                 lpa_addr = I217_EEE_LP_ABILITY;
2168                 pcs_stat_addr = I217_EEE_PCS_STATUS;
2169                 break;
2170         default:
2171                 return -EOPNOTSUPP;
2172         }
2173
2174         ret_val = hw->phy.ops.acquire(hw);
2175         if (ret_val)
2176                 return -EBUSY;
2177
2178         /* EEE Capability */
2179         ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
2180         if (ret_val)
2181                 goto release;
2182         mii_eee_cap1_mod_linkmode_t(edata->supported, phy_data);
2183
2184         /* EEE Advertised */
2185         mii_eee_cap1_mod_linkmode_t(edata->advertised, adapter->eee_advert);
2186
2187         /* EEE Link Partner Advertised */
2188         ret_val = e1000_read_emi_reg_locked(hw, lpa_addr, &phy_data);
2189         if (ret_val)
2190                 goto release;
2191         mii_eee_cap1_mod_linkmode_t(edata->lp_advertised, phy_data);
2192
2193         /* EEE PCS Status */
2194         ret_val = e1000_read_emi_reg_locked(hw, pcs_stat_addr, &phy_data);
2195         if (ret_val)
2196                 goto release;
2197         if (hw->phy.type == e1000_phy_82579)
2198                 phy_data <<= 8;
2199
2200         /* Result of the EEE auto negotiation - there is no register that
2201          * has the status of the EEE negotiation so do a best-guess based
2202          * on whether Tx or Rx LPI indications have been received.
2203          */
2204         if (phy_data & (E1000_EEE_TX_LPI_RCVD | E1000_EEE_RX_LPI_RCVD))
2205                 edata->eee_active = true;
2206
2207         edata->eee_enabled = !hw->dev_spec.ich8lan.eee_disable;
2208         edata->tx_lpi_enabled = true;
2209         edata->tx_lpi_timer = er32(LPIC) >> E1000_LPIC_LPIET_SHIFT;
2210
2211 release:
2212         hw->phy.ops.release(hw);
2213         if (ret_val)
2214                 ret_val = -ENODATA;
2215
2216         return ret_val;
2217 }
2218
2219 static int e1000e_set_eee(struct net_device *netdev, struct ethtool_keee *edata)
2220 {
2221         struct e1000_adapter *adapter = netdev_priv(netdev);
2222         __ETHTOOL_DECLARE_LINK_MODE_MASK(supported) = {};
2223         __ETHTOOL_DECLARE_LINK_MODE_MASK(tmp) = {};
2224         struct e1000_hw *hw = &adapter->hw;
2225         struct ethtool_keee eee_curr;
2226         s32 ret_val;
2227
2228         ret_val = e1000e_get_eee(netdev, &eee_curr);
2229         if (ret_val)
2230                 return ret_val;
2231
2232         if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
2233                 e_err("Setting EEE tx-lpi is not supported\n");
2234                 return -EINVAL;
2235         }
2236
2237         if (eee_curr.tx_lpi_timer != edata->tx_lpi_timer) {
2238                 e_err("Setting EEE Tx LPI timer is not supported\n");
2239                 return -EINVAL;
2240         }
2241
2242         linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
2243                          supported);
2244         linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
2245                          supported);
2246
2247         if (linkmode_andnot(tmp, edata->advertised, supported)) {
2248                 e_err("EEE advertisement supports only 100TX and/or 1000T full-duplex\n");
2249                 return -EINVAL;
2250         }
2251
2252         adapter->eee_advert = linkmode_to_mii_eee_cap1_t(edata->advertised);
2253
2254         hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
2255
2256         /* reset the link */
2257         if (netif_running(netdev))
2258                 e1000e_reinit_locked(adapter);
2259         else
2260                 e1000e_reset(adapter);
2261
2262         return 0;
2263 }
2264
2265 static int e1000e_get_ts_info(struct net_device *netdev,
2266                               struct kernel_ethtool_ts_info *info)
2267 {
2268         struct e1000_adapter *adapter = netdev_priv(netdev);
2269
2270         ethtool_op_get_ts_info(netdev, info);
2271
2272         if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
2273                 return 0;
2274
2275         info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
2276                                   SOF_TIMESTAMPING_RX_HARDWARE |
2277                                   SOF_TIMESTAMPING_RAW_HARDWARE);
2278
2279         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2280
2281         info->rx_filters = (BIT(HWTSTAMP_FILTER_NONE) |
2282                             BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2283                             BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2284                             BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2285                             BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
2286                             BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2287                             BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
2288                             BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2289                             BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2290                             BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2291                             BIT(HWTSTAMP_FILTER_ALL));
2292
2293         if (adapter->ptp_clock)
2294                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
2295
2296         return 0;
2297 }
2298
2299 static u32 e1000e_get_priv_flags(struct net_device *netdev)
2300 {
2301         struct e1000_adapter *adapter = netdev_priv(netdev);
2302         u32 priv_flags = 0;
2303
2304         if (adapter->flags2 & FLAG2_ENABLE_S0IX_FLOWS)
2305                 priv_flags |= E1000E_PRIV_FLAGS_S0IX_ENABLED;
2306
2307         return priv_flags;
2308 }
2309
2310 static int e1000e_set_priv_flags(struct net_device *netdev, u32 priv_flags)
2311 {
2312         struct e1000_adapter *adapter = netdev_priv(netdev);
2313         unsigned int flags2 = adapter->flags2;
2314
2315         flags2 &= ~FLAG2_ENABLE_S0IX_FLOWS;
2316         if (priv_flags & E1000E_PRIV_FLAGS_S0IX_ENABLED) {
2317                 struct e1000_hw *hw = &adapter->hw;
2318
2319                 if (hw->mac.type < e1000_pch_cnp)
2320                         return -EINVAL;
2321                 flags2 |= FLAG2_ENABLE_S0IX_FLOWS;
2322         }
2323
2324         if (flags2 != adapter->flags2)
2325                 adapter->flags2 = flags2;
2326
2327         return 0;
2328 }
2329
2330 static const struct ethtool_ops e1000_ethtool_ops = {
2331         .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS,
2332         .get_drvinfo            = e1000_get_drvinfo,
2333         .get_regs_len           = e1000_get_regs_len,
2334         .get_regs               = e1000_get_regs,
2335         .get_wol                = e1000_get_wol,
2336         .set_wol                = e1000_set_wol,
2337         .get_msglevel           = e1000_get_msglevel,
2338         .set_msglevel           = e1000_set_msglevel,
2339         .nway_reset             = e1000_nway_reset,
2340         .get_link               = ethtool_op_get_link,
2341         .get_eeprom_len         = e1000_get_eeprom_len,
2342         .get_eeprom             = e1000_get_eeprom,
2343         .set_eeprom             = e1000_set_eeprom,
2344         .get_ringparam          = e1000_get_ringparam,
2345         .set_ringparam          = e1000_set_ringparam,
2346         .get_pauseparam         = e1000_get_pauseparam,
2347         .set_pauseparam         = e1000_set_pauseparam,
2348         .self_test              = e1000_diag_test,
2349         .get_strings            = e1000_get_strings,
2350         .set_phys_id            = e1000_set_phys_id,
2351         .get_ethtool_stats      = e1000_get_ethtool_stats,
2352         .get_sset_count         = e1000e_get_sset_count,
2353         .get_coalesce           = e1000_get_coalesce,
2354         .set_coalesce           = e1000_set_coalesce,
2355         .get_rxnfc              = e1000_get_rxnfc,
2356         .get_ts_info            = e1000e_get_ts_info,
2357         .get_eee                = e1000e_get_eee,
2358         .set_eee                = e1000e_set_eee,
2359         .get_link_ksettings     = e1000_get_link_ksettings,
2360         .set_link_ksettings     = e1000_set_link_ksettings,
2361         .get_priv_flags         = e1000e_get_priv_flags,
2362         .set_priv_flags         = e1000e_set_priv_flags,
2363 };
2364
2365 void e1000e_set_ethtool_ops(struct net_device *netdev)
2366 {
2367         netdev->ethtool_ops = &e1000_ethtool_ops;
2368 }