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 if (!pm_runtime_suspended(netdev->dev.parent)) {
 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         pm_runtime_get_sync(netdev->dev.parent);
 278
 279         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 280          * cannot be changed
 281          */
 282         if (hw->phy.ops.check_reset_block &&
 283             hw->phy.ops.check_reset_block(hw)) {
 284                 e_err("Cannot change link characteristics when SoL/IDER is active.\n");
 285                 ret_val = -EINVAL;
 286                 goto out;
 287         }
 288
 289         /* MDI setting is only allowed when autoneg enabled because
 290          * some hardware doesn't allow MDI setting when speed or
 291          * duplex is forced.
 292          */
 293         if (cmd->base.eth_tp_mdix_ctrl) {
 294                 if (hw->phy.media_type != e1000_media_type_copper) {
 295                         ret_val = -EOPNOTSUPP;
 296                         goto out;
 297                 }
 298
 299                 if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
 300                     (cmd->base.autoneg != AUTONEG_ENABLE)) {
 301                         e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
 302                         ret_val = -EINVAL;
 303                         goto out;
 304                 }
 305         }
 306
 307         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 308                 usleep_range(1000, 2000);
 309
 310         if (cmd->base.autoneg == AUTONEG_ENABLE) {
 311                 hw->mac.autoneg = 1;
 312                 if (hw->phy.media_type == e1000_media_type_fiber)
 313                         hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 314                             ADVERTISED_FIBRE | ADVERTISED_Autoneg;
 315                 else
 316                         hw->phy.autoneg_advertised = advertising |
 317                             ADVERTISED_TP | ADVERTISED_Autoneg;
 318                 advertising = hw->phy.autoneg_advertised;
 319                 if (adapter->fc_autoneg)
 320                         hw->fc.requested_mode = e1000_fc_default;
 321         } else {
 322                 u32 speed = cmd->base.speed;
 323                 /* calling this overrides forced MDI setting */
 324                 if (e1000_set_spd_dplx(adapter, speed, cmd->base.duplex)) {
 325                         ret_val = -EINVAL;
 326                         goto out;
 327                 }
 328         }
 329
 330         /* MDI-X => 2; MDI => 1; Auto => 3 */
 331         if (cmd->base.eth_tp_mdix_ctrl) {
 332                 /* fix up the value for auto (3 => 0) as zero is mapped
 333                  * internally to auto
 334                  */
 335                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
 336                         hw->phy.mdix = AUTO_ALL_MODES;
 337                 else
 338                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
 339         }
 340
 341         /* reset the link */
 342         if (netif_running(adapter->netdev)) {
 343                 e1000e_down(adapter, true);
 344                 e1000e_up(adapter);
 345         } else {
 346                 e1000e_reset(adapter);
 347         }
 348
 349 out:
 350         pm_runtime_put_sync(netdev->dev.parent);
 351         clear_bit(__E1000_RESETTING, &adapter->state);
 352         return ret_val;
 353 }
 354
 355 static void e1000_get_pauseparam(struct net_device *netdev,
 356                                  struct ethtool_pauseparam *pause)
 357 {
 358         struct e1000_adapter *adapter = netdev_priv(netdev);
 359         struct e1000_hw *hw = &adapter->hw;
 360
 361         pause->autoneg =
 362             (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 363
 364         if (hw->fc.current_mode == e1000_fc_rx_pause) {
 365                 pause->rx_pause = 1;
 366         } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 367                 pause->tx_pause = 1;
 368         } else if (hw->fc.current_mode == e1000_fc_full) {
 369                 pause->rx_pause = 1;
 370                 pause->tx_pause = 1;
 371         }
 372 }
 373
 374 static int e1000_set_pauseparam(struct net_device *netdev,
 375                                 struct ethtool_pauseparam *pause)
 376 {
 377         struct e1000_adapter *adapter = netdev_priv(netdev);
 378         struct e1000_hw *hw = &adapter->hw;
 379         int retval = 0;
 380
 381         adapter->fc_autoneg = pause->autoneg;
 382
 383         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 384                 usleep_range(1000, 2000);
 385
 386         pm_runtime_get_sync(netdev->dev.parent);
 387
 388         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 389                 hw->fc.requested_mode = e1000_fc_default;
 390                 if (netif_running(adapter->netdev)) {
 391                         e1000e_down(adapter, true);
 392                         e1000e_up(adapter);
 393                 } else {
 394                         e1000e_reset(adapter);
 395                 }
 396         } else {
 397                 if (pause->rx_pause && pause->tx_pause)
 398                         hw->fc.requested_mode = e1000_fc_full;
 399                 else if (pause->rx_pause && !pause->tx_pause)
 400                         hw->fc.requested_mode = e1000_fc_rx_pause;
 401                 else if (!pause->rx_pause && pause->tx_pause)
 402                         hw->fc.requested_mode = e1000_fc_tx_pause;
 403                 else if (!pause->rx_pause && !pause->tx_pause)
 404                         hw->fc.requested_mode = e1000_fc_none;
 405
 406                 hw->fc.current_mode = hw->fc.requested_mode;
 407
 408                 if (hw->phy.media_type == e1000_media_type_fiber) {
 409                         retval = hw->mac.ops.setup_link(hw);
 410                         /* implicit goto out */
 411                 } else {
 412                         retval = e1000e_force_mac_fc(hw);
 413                         if (retval)
 414                                 goto out;
 415                         e1000e_set_fc_watermarks(hw);
 416                 }
 417         }
 418
 419 out:
 420         pm_runtime_put_sync(netdev->dev.parent);
 421         clear_bit(__E1000_RESETTING, &adapter->state);
 422         return retval;
 423 }
 424
 425 static u32 e1000_get_msglevel(struct net_device *netdev)
 426 {
 427         struct e1000_adapter *adapter = netdev_priv(netdev);
 428         return adapter->msg_enable;
 429 }
 430
 431 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 432 {
 433         struct e1000_adapter *adapter = netdev_priv(netdev);
 434         adapter->msg_enable = data;
 435 }
 436
 437 static int e1000_get_regs_len(struct net_device __always_unused *netdev)
 438 {
 439 #define E1000_REGS_LEN 32       /* overestimate */
 440         return E1000_REGS_LEN * sizeof(u32);
 441 }
 442
 443 static void e1000_get_regs(struct net_device *netdev,
 444                            struct ethtool_regs *regs, void *p)
 445 {
 446         struct e1000_adapter *adapter = netdev_priv(netdev);
 447         struct e1000_hw *hw = &adapter->hw;
 448         u32 *regs_buff = p;
 449         u16 phy_data;
 450
 451         pm_runtime_get_sync(netdev->dev.parent);
 452
 453         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 454
 455         regs->version = (1u << 24) |
 456                         (adapter->pdev->revision << 16) |
 457                         adapter->pdev->device;
 458
 459         regs_buff[0] = er32(CTRL);
 460         regs_buff[1] = er32(STATUS);
 461
 462         regs_buff[2] = er32(RCTL);
 463         regs_buff[3] = er32(RDLEN(0));
 464         regs_buff[4] = er32(RDH(0));
 465         regs_buff[5] = er32(RDT(0));
 466         regs_buff[6] = er32(RDTR);
 467
 468         regs_buff[7] = er32(TCTL);
 469         regs_buff[8] = er32(TDLEN(0));
 470         regs_buff[9] = er32(TDH(0));
 471         regs_buff[10] = er32(TDT(0));
 472         regs_buff[11] = er32(TIDV);
 473
 474         regs_buff[12] = adapter->hw.phy.type;   /* PHY type (IGP=1, M88=0) */
 475
 476         /* ethtool doesn't use anything past this point, so all this
 477          * code is likely legacy junk for apps that may or may not exist
 478          */
 479         if (hw->phy.type == e1000_phy_m88) {
 480                 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 481                 regs_buff[13] = (u32)phy_data; /* cable length */
 482                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 483                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 484                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 485                 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 486                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 487                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 488                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 489                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 490                 /* phy receive errors */
 491                 regs_buff[22] = adapter->phy_stats.receive_errors;
 492                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 493         }
 494         regs_buff[21] = 0;      /* was idle_errors */
 495         e1e_rphy(hw, MII_STAT1000, &phy_data);
 496         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 497         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 498
 499         pm_runtime_put_sync(netdev->dev.parent);
 500 }
 501
 502 static int e1000_get_eeprom_len(struct net_device *netdev)
 503 {
 504         struct e1000_adapter *adapter = netdev_priv(netdev);
 505         return adapter->hw.nvm.word_size * 2;
 506 }
 507
 508 static int e1000_get_eeprom(struct net_device *netdev,
 509                             struct ethtool_eeprom *eeprom, u8 *bytes)
 510 {
 511         struct e1000_adapter *adapter = netdev_priv(netdev);
 512         struct e1000_hw *hw = &adapter->hw;
 513         u16 *eeprom_buff;
 514         int first_word;
 515         int last_word;
 516         int ret_val = 0;
 517         u16 i;
 518
 519         if (eeprom->len == 0)
 520                 return -EINVAL;
 521
 522         eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 523
 524         first_word = eeprom->offset >> 1;
 525         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 526
 527         eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
 528                                     GFP_KERNEL);
 529         if (!eeprom_buff)
 530                 return -ENOMEM;
 531
 532         pm_runtime_get_sync(netdev->dev.parent);
 533
 534         if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 535                 ret_val = e1000_read_nvm(hw, first_word,
 536                                          last_word - first_word + 1,
 537                                          eeprom_buff);
 538         } else {
 539                 for (i = 0; i < last_word - first_word + 1; i++) {
 540                         ret_val = e1000_read_nvm(hw, first_word + i, 1,
 541                                                  &eeprom_buff[i]);
 542                         if (ret_val)
 543                                 break;
 544                 }
 545         }
 546
 547         pm_runtime_put_sync(netdev->dev.parent);
 548
 549         if (ret_val) {
 550                 /* a read error occurred, throw away the result */
 551                 memset(eeprom_buff, 0xff, sizeof(u16) *
 552                        (last_word - first_word + 1));
 553         } else {
 554                 /* Device's eeprom is always little-endian, word addressable */
 555                 for (i = 0; i < last_word - first_word + 1; i++)
 556                         le16_to_cpus(&eeprom_buff[i]);
 557         }
 558
 559         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 560         kfree(eeprom_buff);
 561
 562         return ret_val;
 563 }
 564
 565 static int e1000_set_eeprom(struct net_device *netdev,
 566                             struct ethtool_eeprom *eeprom, u8 *bytes)
 567 {
 568         struct e1000_adapter *adapter = netdev_priv(netdev);
 569         struct e1000_hw *hw = &adapter->hw;
 570         u16 *eeprom_buff;
 571         void *ptr;
 572         int max_len;
 573         int first_word;
 574         int last_word;
 575         int ret_val = 0;
 576         u16 i;
 577
 578         if (eeprom->len == 0)
 579                 return -EOPNOTSUPP;
 580
 581         if (eeprom->magic !=
 582             (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 583                 return -EFAULT;
 584
 585         if (adapter->flags & FLAG_READ_ONLY_NVM)
 586                 return -EINVAL;
 587
 588         max_len = hw->nvm.word_size * 2;
 589
 590         first_word = eeprom->offset >> 1;
 591         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 592         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 593         if (!eeprom_buff)
 594                 return -ENOMEM;
 595
 596         ptr = (void *)eeprom_buff;
 597
 598         pm_runtime_get_sync(netdev->dev.parent);
 599
 600         if (eeprom->offset & 1) {
 601                 /* need read/modify/write of first changed EEPROM word */
 602                 /* only the second byte of the word is being modified */
 603                 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 604                 ptr++;
 605         }
 606         if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
 607                 /* need read/modify/write of last changed EEPROM word */
 608                 /* only the first byte of the word is being modified */
 609                 ret_val = e1000_read_nvm(hw, last_word, 1,
 610                                          &eeprom_buff[last_word - first_word]);
 611
 612         if (ret_val)
 613                 goto out;
 614
 615         /* Device's eeprom is always little-endian, word addressable */
 616         for (i = 0; i < last_word - first_word + 1; i++)
 617                 le16_to_cpus(&eeprom_buff[i]);
 618
 619         memcpy(ptr, bytes, eeprom->len);
 620
 621         for (i = 0; i < last_word - first_word + 1; i++)
 622                 cpu_to_le16s(&eeprom_buff[i]);
 623
 624         ret_val = e1000_write_nvm(hw, first_word,
 625                                   last_word - first_word + 1, eeprom_buff);
 626
 627         if (ret_val)
 628                 goto out;
 629
 630         /* Update the checksum over the first part of the EEPROM if needed
 631          * and flush shadow RAM for applicable controllers
 632          */
 633         if ((first_word <= NVM_CHECKSUM_REG) ||
 634             (hw->mac.type == e1000_82583) ||
 635             (hw->mac.type == e1000_82574) ||
 636             (hw->mac.type == e1000_82573))
 637                 ret_val = e1000e_update_nvm_checksum(hw);
 638
 639 out:
 640         pm_runtime_put_sync(netdev->dev.parent);
 641         kfree(eeprom_buff);
 642         return ret_val;
 643 }
 644
 645 static void e1000_get_drvinfo(struct net_device *netdev,
 646                               struct ethtool_drvinfo *drvinfo)
 647 {
 648         struct e1000_adapter *adapter = netdev_priv(netdev);
 649
 650         strscpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver));
 651
 652         /* EEPROM image version # is reported as firmware version # for
 653          * PCI-E controllers
 654          */
 655         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
 656                  "%d.%d-%d",
 657                  (adapter->eeprom_vers & 0xF000) >> 12,
 658                  (adapter->eeprom_vers & 0x0FF0) >> 4,
 659                  (adapter->eeprom_vers & 0x000F));
 660
 661         strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
 662                 sizeof(drvinfo->bus_info));
 663 }
 664
 665 static void e1000_get_ringparam(struct net_device *netdev,
 666                                 struct ethtool_ringparam *ring,
 667                                 struct kernel_ethtool_ringparam *kernel_ring,
 668                                 struct netlink_ext_ack *extack)
 669 {
 670         struct e1000_adapter *adapter = netdev_priv(netdev);
 671
 672         ring->rx_max_pending = E1000_MAX_RXD;
 673         ring->tx_max_pending = E1000_MAX_TXD;
 674         ring->rx_pending = adapter->rx_ring_count;
 675         ring->tx_pending = adapter->tx_ring_count;
 676 }
 677
 678 static int e1000_set_ringparam(struct net_device *netdev,
 679                                struct ethtool_ringparam *ring,
 680                                struct kernel_ethtool_ringparam *kernel_ring,
 681                                struct netlink_ext_ack *extack)
 682 {
 683         struct e1000_adapter *adapter = netdev_priv(netdev);
 684         struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
 685         int err = 0, size = sizeof(struct e1000_ring);
 686         bool set_tx = false, set_rx = false;
 687         u16 new_rx_count, new_tx_count;
 688
 689         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 690                 return -EINVAL;
 691
 692         new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
 693                                E1000_MAX_RXD);
 694         new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 695
 696         new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
 697                                E1000_MAX_TXD);
 698         new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 699
 700         if ((new_tx_count == adapter->tx_ring_count) &&
 701             (new_rx_count == adapter->rx_ring_count))
 702                 /* nothing to do */
 703                 return 0;
 704
 705         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 706                 usleep_range(1000, 2000);
 707
 708         if (!netif_running(adapter->netdev)) {
 709                 /* Set counts now and allocate resources during open() */
 710                 adapter->tx_ring->count = new_tx_count;
 711                 adapter->rx_ring->count = new_rx_count;
 712                 adapter->tx_ring_count = new_tx_count;
 713                 adapter->rx_ring_count = new_rx_count;
 714                 goto clear_reset;
 715         }
 716
 717         set_tx = (new_tx_count != adapter->tx_ring_count);
 718         set_rx = (new_rx_count != adapter->rx_ring_count);
 719
 720         /* Allocate temporary storage for ring updates */
 721         if (set_tx) {
 722                 temp_tx = vmalloc(size);
 723                 if (!temp_tx) {
 724                         err = -ENOMEM;
 725                         goto free_temp;
 726                 }
 727         }
 728         if (set_rx) {
 729                 temp_rx = vmalloc(size);
 730                 if (!temp_rx) {
 731                         err = -ENOMEM;
 732                         goto free_temp;
 733                 }
 734         }
 735
 736         pm_runtime_get_sync(netdev->dev.parent);
 737
 738         e1000e_down(adapter, true);
 739
 740         /* We can't just free everything and then setup again, because the
 741          * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring
 742          * structs.  First, attempt to allocate new resources...
 743          */
 744         if (set_tx) {
 745                 memcpy(temp_tx, adapter->tx_ring, size);
 746                 temp_tx->count = new_tx_count;
 747                 err = e1000e_setup_tx_resources(temp_tx);
 748                 if (err)
 749                         goto err_setup;
 750         }
 751         if (set_rx) {
 752                 memcpy(temp_rx, adapter->rx_ring, size);
 753                 temp_rx->count = new_rx_count;
 754                 err = e1000e_setup_rx_resources(temp_rx);
 755                 if (err)
 756                         goto err_setup_rx;
 757         }
 758
 759         /* ...then free the old resources and copy back any new ring data */
 760         if (set_tx) {
 761                 e1000e_free_tx_resources(adapter->tx_ring);
 762                 memcpy(adapter->tx_ring, temp_tx, size);
 763                 adapter->tx_ring_count = new_tx_count;
 764         }
 765         if (set_rx) {
 766                 e1000e_free_rx_resources(adapter->rx_ring);
 767                 memcpy(adapter->rx_ring, temp_rx, size);
 768                 adapter->rx_ring_count = new_rx_count;
 769         }
 770
 771 err_setup_rx:
 772         if (err && set_tx)
 773                 e1000e_free_tx_resources(temp_tx);
 774 err_setup:
 775         e1000e_up(adapter);
 776         pm_runtime_put_sync(netdev->dev.parent);
 777 free_temp:
 778         vfree(temp_tx);
 779         vfree(temp_rx);
 780 clear_reset:
 781         clear_bit(__E1000_RESETTING, &adapter->state);
 782         return err;
 783 }
 784
 785 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 786                              int reg, int offset, u32 mask, u32 write)
 787 {
 788         u32 pat, val;
 789         static const u32 test[] = {
 790                 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 791         };
 792         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 793                 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 794                                       (test[pat] & write));
 795                 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 796                 if (val != (test[pat] & write & mask)) {
 797                         e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
 798                               reg + (offset << 2), val,
 799                               (test[pat] & write & mask));
 800                         *data = reg;
 801                         return true;
 802                 }
 803         }
 804         return false;
 805 }
 806
 807 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 808                               int reg, u32 mask, u32 write)
 809 {
 810         u32 val;
 811
 812         __ew32(&adapter->hw, reg, write & mask);
 813         val = __er32(&adapter->hw, reg);
 814         if ((write & mask) != (val & mask)) {
 815                 e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
 816                       reg, (val & mask), (write & mask));
 817                 *data = reg;
 818                 return true;
 819         }
 820         return false;
 821 }
 822
 823 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 824         do {                                                                   \
 825                 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 826                         return 1;                                              \
 827         } while (0)
 828 #define REG_PATTERN_TEST(reg, mask, write)                                     \
 829         REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 830
 831 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
 832         do {                                                                   \
 833                 if (reg_set_and_check(adapter, data, reg, mask, write))        \
 834                         return 1;                                              \
 835         } while (0)
 836
 837 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 838 {
 839         struct e1000_hw *hw = &adapter->hw;
 840         struct e1000_mac_info *mac = &adapter->hw.mac;
 841         u32 value;
 842         u32 before;
 843         u32 after;
 844         u32 i;
 845         u32 toggle;
 846         u32 mask;
 847         u32 wlock_mac = 0;
 848
 849         /* The status register is Read Only, so a write should fail.
 850          * Some bits that get toggled are ignored.  There are several bits
 851          * on newer hardware that are r/w.
 852          */
 853         switch (mac->type) {
 854         case e1000_82571:
 855         case e1000_82572:
 856         case e1000_80003es2lan:
 857                 toggle = 0x7FFFF3FF;
 858                 break;
 859         default:
 860                 toggle = 0x7FFFF033;
 861                 break;
 862         }
 863
 864         before = er32(STATUS);
 865         value = (er32(STATUS) & toggle);
 866         ew32(STATUS, toggle);
 867         after = er32(STATUS) & toggle;
 868         if (value != after) {
 869                 e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
 870                       after, value);
 871                 *data = 1;
 872                 return 1;
 873         }
 874         /* restore previous status */
 875         ew32(STATUS, before);
 876
 877         if (!(adapter->flags & FLAG_IS_ICH)) {
 878                 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 879                 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 880                 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 881                 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 882         }
 883
 884         REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 885         REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 886         REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
 887         REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
 888         REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
 889         REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 890         REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 891         REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 892         REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 893         REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
 894
 895         REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 896
 897         before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 898         REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 899         REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 900
 901         REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 902         REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 903         if (!(adapter->flags & FLAG_IS_ICH))
 904                 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 905         REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 906         REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 907         mask = 0x8003FFFF;
 908         switch (mac->type) {
 909         case e1000_ich10lan:
 910         case e1000_pchlan:
 911         case e1000_pch2lan:
 912         case e1000_pch_lpt:
 913         case e1000_pch_spt:
 914         case e1000_pch_cnp:
 915         case e1000_pch_tgp:
 916         case e1000_pch_adp:
 917         case e1000_pch_mtp:
 918         case e1000_pch_lnp:
 919         case e1000_pch_ptp:
 920                 mask |= BIT(18);
 921                 break;
 922         default:
 923                 break;
 924         }
 925
 926         if (mac->type >= e1000_pch_lpt)
 927                 wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
 928                     E1000_FWSM_WLOCK_MAC_SHIFT;
 929
 930         for (i = 0; i < mac->rar_entry_count; i++) {
 931                 if (mac->type >= e1000_pch_lpt) {
 932                         /* Cannot test write-protected SHRAL[n] registers */
 933                         if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
 934                                 continue;
 935
 936                         /* SHRAH[9] different than the others */
 937                         if (i == 10)
 938                                 mask |= BIT(30);
 939                         else
 940                                 mask &= ~BIT(30);
 941                 }
 942                 if (mac->type == e1000_pch2lan) {
 943                         /* SHRAH[0,1,2] different than previous */
 944                         if (i == 1)
 945                                 mask &= 0xFFF4FFFF;
 946                         /* SHRAH[3] different than SHRAH[0,1,2] */
 947                         if (i == 4)
 948                                 mask |= BIT(30);
 949                         /* RAR[1-6] owned by management engine - skipping */
 950                         if (i > 0)
 951                                 i += 6;
 952                 }
 953
 954                 REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask,
 955                                        0xFFFFFFFF);
 956                 /* reset index to actual value */
 957                 if ((mac->type == e1000_pch2lan) && (i > 6))
 958                         i -= 6;
 959         }
 960
 961         for (i = 0; i < mac->mta_reg_count; i++)
 962                 REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 963
 964         *data = 0;
 965
 966         return 0;
 967 }
 968
 969 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 970 {
 971         u16 temp;
 972         u16 checksum = 0;
 973         u16 i;
 974
 975         *data = 0;
 976         /* Read and add up the contents of the EEPROM */
 977         for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 978                 if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 979                         *data = 1;
 980                         return *data;
 981                 }
 982                 checksum += temp;
 983         }
 984
 985         /* If Checksum is not Correct return error else test passed */
 986         if ((checksum != (u16)NVM_SUM) && !(*data))
 987                 *data = 2;
 988
 989         return *data;
 990 }
 991
 992 static irqreturn_t e1000_test_intr(int __always_unused irq, void *data)
 993 {
 994         struct net_device *netdev = (struct net_device *)data;
 995         struct e1000_adapter *adapter = netdev_priv(netdev);
 996         struct e1000_hw *hw = &adapter->hw;
 997
 998         adapter->test_icr |= er32(ICR);
 999
1000         return IRQ_HANDLED;
1001 }
1002
1003 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
1004 {
1005         struct net_device *netdev = adapter->netdev;
1006         struct e1000_hw *hw = &adapter->hw;
1007         u32 mask;
1008         u32 shared_int = 1;
1009         u32 irq = adapter->pdev->irq;
1010         int i;
1011         int ret_val = 0;
1012         int int_mode = E1000E_INT_MODE_LEGACY;
1013
1014         *data = 0;
1015
1016         /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
1017         if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
1018                 int_mode = adapter->int_mode;
1019                 e1000e_reset_interrupt_capability(adapter);
1020                 adapter->int_mode = E1000E_INT_MODE_LEGACY;
1021                 e1000e_set_interrupt_capability(adapter);
1022         }
1023         /* Hook up test interrupt handler just for this test */
1024         if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
1025                          netdev)) {
1026                 shared_int = 0;
1027         } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name,
1028                                netdev)) {
1029                 *data = 1;
1030                 ret_val = -1;
1031                 goto out;
1032         }
1033         e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
1034
1035         /* Disable all the interrupts */
1036         ew32(IMC, 0xFFFFFFFF);
1037         e1e_flush();
1038         usleep_range(10000, 11000);
1039
1040         /* Test each interrupt */
1041         for (i = 0; i < 10; i++) {
1042                 /* Interrupt to test */
1043                 mask = BIT(i);
1044
1045                 if (adapter->flags & FLAG_IS_ICH) {
1046                         switch (mask) {
1047                         case E1000_ICR_RXSEQ:
1048                                 continue;
1049                         case 0x00000100:
1050                                 if (adapter->hw.mac.type == e1000_ich8lan ||
1051                                     adapter->hw.mac.type == e1000_ich9lan)
1052                                         continue;
1053                                 break;
1054                         default:
1055                                 break;
1056                         }
1057                 }
1058
1059                 if (!shared_int) {
1060                         /* Disable the interrupt to be reported in
1061                          * the cause register and then force the same
1062                          * interrupt and see if one gets posted.  If
1063                          * an interrupt was posted to the bus, the
1064                          * test failed.
1065                          */
1066                         adapter->test_icr = 0;
1067                         ew32(IMC, mask);
1068                         ew32(ICS, mask);
1069                         e1e_flush();
1070                         usleep_range(10000, 11000);
1071
1072                         if (adapter->test_icr & mask) {
1073                                 *data = 3;
1074                                 break;
1075                         }
1076                 }
1077
1078                 /* Enable the interrupt to be reported in
1079                  * the cause register and then force the same
1080                  * interrupt and see if one gets posted.  If
1081                  * an interrupt was not posted to the bus, the
1082                  * test failed.
1083                  */
1084                 adapter->test_icr = 0;
1085                 ew32(IMS, mask);
1086                 ew32(ICS, mask);
1087                 e1e_flush();
1088                 usleep_range(10000, 11000);
1089
1090                 if (!(adapter->test_icr & mask)) {
1091                         *data = 4;
1092                         break;
1093                 }
1094
1095                 if (!shared_int) {
1096                         /* Disable the other interrupts to be reported in
1097                          * the cause register and then force the other
1098                          * interrupts and see if any get posted.  If
1099                          * an interrupt was posted to the bus, the
1100                          * test failed.
1101                          */
1102                         adapter->test_icr = 0;
1103                         ew32(IMC, ~mask & 0x00007FFF);
1104                         ew32(ICS, ~mask & 0x00007FFF);
1105                         e1e_flush();
1106                         usleep_range(10000, 11000);
1107
1108                         if (adapter->test_icr) {
1109                                 *data = 5;
1110                                 break;
1111                         }
1112                 }
1113         }
1114
1115         /* Disable all the interrupts */
1116         ew32(IMC, 0xFFFFFFFF);
1117         e1e_flush();
1118         usleep_range(10000, 11000);
1119
1120         /* Unhook test interrupt handler */
1121         free_irq(irq, netdev);
1122
1123 out:
1124         if (int_mode == E1000E_INT_MODE_MSIX) {
1125                 e1000e_reset_interrupt_capability(adapter);
1126                 adapter->int_mode = int_mode;
1127                 e1000e_set_interrupt_capability(adapter);
1128         }
1129
1130         return ret_val;
1131 }
1132
1133 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1134 {
1135         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1136         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1137         struct pci_dev *pdev = adapter->pdev;
1138         struct e1000_buffer *buffer_info;
1139         int i;
1140
1141         if (tx_ring->desc && tx_ring->buffer_info) {
1142                 for (i = 0; i < tx_ring->count; i++) {
1143                         buffer_info = &tx_ring->buffer_info[i];
1144
1145                         if (buffer_info->dma)
1146                                 dma_unmap_single(&pdev->dev,
1147                                                  buffer_info->dma,
1148                                                  buffer_info->length,
1149                                                  DMA_TO_DEVICE);
1150                         dev_kfree_skb(buffer_info->skb);
1151                 }
1152         }
1153
1154         if (rx_ring->desc && rx_ring->buffer_info) {
1155                 for (i = 0; i < rx_ring->count; i++) {
1156                         buffer_info = &rx_ring->buffer_info[i];
1157
1158                         if (buffer_info->dma)
1159                                 dma_unmap_single(&pdev->dev,
1160                                                  buffer_info->dma,
1161                                                  2048, DMA_FROM_DEVICE);
1162                         dev_kfree_skb(buffer_info->skb);
1163                 }
1164         }
1165
1166         if (tx_ring->desc) {
1167                 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1168                                   tx_ring->dma);
1169                 tx_ring->desc = NULL;
1170         }
1171         if (rx_ring->desc) {
1172                 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1173                                   rx_ring->dma);
1174                 rx_ring->desc = NULL;
1175         }
1176
1177         kfree(tx_ring->buffer_info);
1178         tx_ring->buffer_info = NULL;
1179         kfree(rx_ring->buffer_info);
1180         rx_ring->buffer_info = NULL;
1181 }
1182
1183 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1184 {
1185         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1186         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1187         struct pci_dev *pdev = adapter->pdev;
1188         struct e1000_hw *hw = &adapter->hw;
1189         u32 rctl;
1190         int i;
1191         int ret_val;
1192
1193         /* Setup Tx descriptor ring and Tx buffers */
1194
1195         if (!tx_ring->count)
1196                 tx_ring->count = E1000_DEFAULT_TXD;
1197
1198         tx_ring->buffer_info = kcalloc(tx_ring->count,
1199                                        sizeof(struct e1000_buffer), GFP_KERNEL);
1200         if (!tx_ring->buffer_info) {
1201                 ret_val = 1;
1202                 goto err_nomem;
1203         }
1204
1205         tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1206         tx_ring->size = ALIGN(tx_ring->size, 4096);
1207         tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1208                                            &tx_ring->dma, GFP_KERNEL);
1209         if (!tx_ring->desc) {
1210                 ret_val = 2;
1211                 goto err_nomem;
1212         }
1213         tx_ring->next_to_use = 0;
1214         tx_ring->next_to_clean = 0;
1215
1216         ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF));
1217         ew32(TDBAH(0), ((u64)tx_ring->dma >> 32));
1218         ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
1219         ew32(TDH(0), 0);
1220         ew32(TDT(0), 0);
1221         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1222              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1223              E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1224
1225         for (i = 0; i < tx_ring->count; i++) {
1226                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1227                 struct sk_buff *skb;
1228                 unsigned int skb_size = 1024;
1229
1230                 skb = alloc_skb(skb_size, GFP_KERNEL);
1231                 if (!skb) {
1232                         ret_val = 3;
1233                         goto err_nomem;
1234                 }
1235                 skb_put(skb, skb_size);
1236                 tx_ring->buffer_info[i].skb = skb;
1237                 tx_ring->buffer_info[i].length = skb->len;
1238                 tx_ring->buffer_info[i].dma =
1239                     dma_map_single(&pdev->dev, skb->data, skb->len,
1240                                    DMA_TO_DEVICE);
1241                 if (dma_mapping_error(&pdev->dev,
1242                                       tx_ring->buffer_info[i].dma)) {
1243                         ret_val = 4;
1244                         goto err_nomem;
1245                 }
1246                 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1247                 tx_desc->lower.data = cpu_to_le32(skb->len);
1248                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1249                                                    E1000_TXD_CMD_IFCS |
1250                                                    E1000_TXD_CMD_RS);
1251                 tx_desc->upper.data = 0;
1252         }
1253
1254         /* Setup Rx descriptor ring and Rx buffers */
1255
1256         if (!rx_ring->count)
1257                 rx_ring->count = E1000_DEFAULT_RXD;
1258
1259         rx_ring->buffer_info = kcalloc(rx_ring->count,
1260                                        sizeof(struct e1000_buffer), GFP_KERNEL);
1261         if (!rx_ring->buffer_info) {
1262                 ret_val = 5;
1263                 goto err_nomem;
1264         }
1265
1266         rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
1267         rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1268                                            &rx_ring->dma, GFP_KERNEL);
1269         if (!rx_ring->desc) {
1270                 ret_val = 6;
1271                 goto err_nomem;
1272         }
1273         rx_ring->next_to_use = 0;
1274         rx_ring->next_to_clean = 0;
1275
1276         rctl = er32(RCTL);
1277         if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1278                 ew32(RCTL, rctl & ~E1000_RCTL_EN);
1279         ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF));
1280         ew32(RDBAH(0), ((u64)rx_ring->dma >> 32));
1281         ew32(RDLEN(0), rx_ring->size);
1282         ew32(RDH(0), 0);
1283         ew32(RDT(0), 0);
1284         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1285             E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1286             E1000_RCTL_SBP | E1000_RCTL_SECRC |
1287             E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1288             (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1289         ew32(RCTL, rctl);
1290
1291         for (i = 0; i < rx_ring->count; i++) {
1292                 union e1000_rx_desc_extended *rx_desc;
1293                 struct sk_buff *skb;
1294
1295                 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1296                 if (!skb) {
1297                         ret_val = 7;
1298                         goto err_nomem;
1299                 }
1300                 skb_reserve(skb, NET_IP_ALIGN);
1301                 rx_ring->buffer_info[i].skb = skb;
1302                 rx_ring->buffer_info[i].dma =
1303                     dma_map_single(&pdev->dev, skb->data, 2048,
1304                                    DMA_FROM_DEVICE);
1305                 if (dma_mapping_error(&pdev->dev,
1306                                       rx_ring->buffer_info[i].dma)) {
1307                         ret_val = 8;
1308                         goto err_nomem;
1309                 }
1310                 rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
1311                 rx_desc->read.buffer_addr =
1312                     cpu_to_le64(rx_ring->buffer_info[i].dma);
1313                 memset(skb->data, 0x00, skb->len);
1314         }
1315
1316         return 0;
1317
1318 err_nomem:
1319         e1000_free_desc_rings(adapter);
1320         return ret_val;
1321 }
1322
1323 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1324 {
1325         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1326         e1e_wphy(&adapter->hw, 29, 0x001F);
1327         e1e_wphy(&adapter->hw, 30, 0x8FFC);
1328         e1e_wphy(&adapter->hw, 29, 0x001A);
1329         e1e_wphy(&adapter->hw, 30, 0x8FF0);
1330 }
1331
1332 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1333 {
1334         struct e1000_hw *hw = &adapter->hw;
1335         u32 ctrl_reg = 0;
1336         u16 phy_reg = 0;
1337         s32 ret_val = 0;
1338
1339         hw->mac.autoneg = 0;
1340
1341         if (hw->phy.type == e1000_phy_ife) {
1342                 /* force 100, set loopback */
1343                 e1e_wphy(hw, MII_BMCR, 0x6100);
1344
1345                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1346                 ctrl_reg = er32(CTRL);
1347                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1348                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1349                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1350                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1351                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1352
1353                 ew32(CTRL, ctrl_reg);
1354                 e1e_flush();
1355                 usleep_range(500, 1000);
1356
1357                 return 0;
1358         }
1359
1360         /* Specific PHY configuration for loopback */
1361         switch (hw->phy.type) {
1362         case e1000_phy_m88:
1363                 /* Auto-MDI/MDIX Off */
1364                 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1365                 /* reset to update Auto-MDI/MDIX */
1366                 e1e_wphy(hw, MII_BMCR, 0x9140);
1367                 /* autoneg off */
1368                 e1e_wphy(hw, MII_BMCR, 0x8140);
1369                 break;
1370         case e1000_phy_gg82563:
1371                 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1372                 break;
1373         case e1000_phy_bm:
1374                 /* Set Default MAC Interface speed to 1GB */
1375                 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1376                 phy_reg &= ~0x0007;
1377                 phy_reg |= 0x006;
1378                 e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1379                 /* Assert SW reset for above settings to take effect */
1380                 hw->phy.ops.commit(hw);
1381                 usleep_range(1000, 2000);
1382                 /* Force Full Duplex */
1383                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1384                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1385                 /* Set Link Up (in force link) */
1386                 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1387                 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1388                 /* Force Link */
1389                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1390                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1391                 /* Set Early Link Enable */
1392                 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1393                 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1394                 break;
1395         case e1000_phy_82577:
1396         case e1000_phy_82578:
1397                 /* Workaround: K1 must be disabled for stable 1Gbps operation */
1398                 ret_val = hw->phy.ops.acquire(hw);
1399                 if (ret_val) {
1400                         e_err("Cannot setup 1Gbps loopback.\n");
1401                         return ret_val;
1402                 }
1403                 e1000_configure_k1_ich8lan(hw, false);
1404                 hw->phy.ops.release(hw);
1405                 break;
1406         case e1000_phy_82579:
1407                 /* Disable PHY energy detect power down */
1408                 e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1409                 e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~BIT(3));
1410                 /* Disable full chip energy detect */
1411                 e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1412                 e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1413                 /* Enable loopback on the PHY */
1414                 e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1415                 break;
1416         default:
1417                 break;
1418         }
1419
1420         /* force 1000, set loopback */
1421         e1e_wphy(hw, MII_BMCR, 0x4140);
1422         msleep(250);
1423
1424         /* Now set up the MAC to the same speed/duplex as the PHY. */
1425         ctrl_reg = er32(CTRL);
1426         ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1427         ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1428                      E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1429                      E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1430                      E1000_CTRL_FD);     /* Force Duplex to FULL */
1431
1432         if (adapter->flags & FLAG_IS_ICH)
1433                 ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1434
1435         if (hw->phy.media_type == e1000_media_type_copper &&
1436             hw->phy.type == e1000_phy_m88) {
1437                 ctrl_reg |= E1000_CTRL_ILOS;    /* Invert Loss of Signal */
1438         } else {
1439                 /* Set the ILOS bit on the fiber Nic if half duplex link is
1440                  * detected.
1441                  */
1442                 if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1443                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1444         }
1445
1446         ew32(CTRL, ctrl_reg);
1447
1448         /* Disable the receiver on the PHY so when a cable is plugged in, the
1449          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1450          */
1451         if (hw->phy.type == e1000_phy_m88)
1452                 e1000_phy_disable_receiver(adapter);
1453
1454         usleep_range(500, 1000);
1455
1456         return 0;
1457 }
1458
1459 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1460 {
1461         struct e1000_hw *hw = &adapter->hw;
1462         u32 ctrl = er32(CTRL);
1463         int link;
1464
1465         /* special requirements for 82571/82572 fiber adapters */
1466
1467         /* jump through hoops to make sure link is up because serdes
1468          * link is hardwired up
1469          */
1470         ctrl |= E1000_CTRL_SLU;
1471         ew32(CTRL, ctrl);
1472
1473         /* disable autoneg */
1474         ctrl = er32(TXCW);
1475         ctrl &= ~BIT(31);
1476         ew32(TXCW, ctrl);
1477
1478         link = (er32(STATUS) & E1000_STATUS_LU);
1479
1480         if (!link) {
1481                 /* set invert loss of signal */
1482                 ctrl = er32(CTRL);
1483                 ctrl |= E1000_CTRL_ILOS;
1484                 ew32(CTRL, ctrl);
1485         }
1486
1487         /* special write to serdes control register to enable SerDes analog
1488          * loopback
1489          */
1490         ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
1491         e1e_flush();
1492         usleep_range(10000, 11000);
1493
1494         return 0;
1495 }
1496
1497 /* only call this for fiber/serdes connections to es2lan */
1498 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1499 {
1500         struct e1000_hw *hw = &adapter->hw;
1501         u32 ctrlext = er32(CTRL_EXT);
1502         u32 ctrl = er32(CTRL);
1503
1504         /* save CTRL_EXT to restore later, reuse an empty variable (unused
1505          * on mac_type 80003es2lan)
1506          */
1507         adapter->tx_fifo_head = ctrlext;
1508
1509         /* clear the serdes mode bits, putting the device into mac loopback */
1510         ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1511         ew32(CTRL_EXT, ctrlext);
1512
1513         /* force speed to 1000/FD, link up */
1514         ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1515         ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1516                  E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1517         ew32(CTRL, ctrl);
1518
1519         /* set mac loopback */
1520         ctrl = er32(RCTL);
1521         ctrl |= E1000_RCTL_LBM_MAC;
1522         ew32(RCTL, ctrl);
1523
1524         /* set testing mode parameters (no need to reset later) */
1525 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1526 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1527         ew32(KMRNCTRLSTA,
1528              (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1529
1530         return 0;
1531 }
1532
1533 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1534 {
1535         struct e1000_hw *hw = &adapter->hw;
1536         u32 rctl, fext_nvm11, tarc0;
1537
1538         if (hw->mac.type >= e1000_pch_spt) {
1539                 fext_nvm11 = er32(FEXTNVM11);
1540                 fext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX;
1541                 ew32(FEXTNVM11, fext_nvm11);
1542                 tarc0 = er32(TARC(0));
1543                 /* clear bits 28 & 29 (control of MULR concurrent requests) */
1544                 tarc0 &= 0xcfffffff;
1545                 /* set bit 29 (value of MULR requests is now 2) */
1546                 tarc0 |= 0x20000000;
1547                 ew32(TARC(0), tarc0);
1548         }
1549         if (hw->phy.media_type == e1000_media_type_fiber ||
1550             hw->phy.media_type == e1000_media_type_internal_serdes) {
1551                 switch (hw->mac.type) {
1552                 case e1000_80003es2lan:
1553                         return e1000_set_es2lan_mac_loopback(adapter);
1554                 case e1000_82571:
1555                 case e1000_82572:
1556                         return e1000_set_82571_fiber_loopback(adapter);
1557                 default:
1558                         rctl = er32(RCTL);
1559                         rctl |= E1000_RCTL_LBM_TCVR;
1560                         ew32(RCTL, rctl);
1561                         return 0;
1562                 }
1563         } else if (hw->phy.media_type == e1000_media_type_copper) {
1564                 return e1000_integrated_phy_loopback(adapter);
1565         }
1566
1567         return 7;
1568 }
1569
1570 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1571 {
1572         struct e1000_hw *hw = &adapter->hw;
1573         u32 rctl, fext_nvm11, tarc0;
1574         u16 phy_reg;
1575
1576         rctl = er32(RCTL);
1577         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1578         ew32(RCTL, rctl);
1579
1580         switch (hw->mac.type) {
1581         case e1000_pch_spt:
1582         case e1000_pch_cnp:
1583         case e1000_pch_tgp:
1584         case e1000_pch_adp:
1585         case e1000_pch_mtp:
1586         case e1000_pch_lnp:
1587         case e1000_pch_ptp:
1588                 fext_nvm11 = er32(FEXTNVM11);
1589                 fext_nvm11 &= ~E1000_FEXTNVM11_DISABLE_MULR_FIX;
1590                 ew32(FEXTNVM11, fext_nvm11);
1591                 tarc0 = er32(TARC(0));
1592                 /* clear bits 28 & 29 (control of MULR concurrent requests) */
1593                 /* set bit 29 (value of MULR requests is now 0) */
1594                 tarc0 &= 0xcfffffff;
1595                 ew32(TARC(0), tarc0);
1596                 fallthrough;
1597         case e1000_80003es2lan:
1598                 if (hw->phy.media_type == e1000_media_type_fiber ||
1599                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1600                         /* restore CTRL_EXT, stealing space from tx_fifo_head */
1601                         ew32(CTRL_EXT, adapter->tx_fifo_head);
1602                         adapter->tx_fifo_head = 0;
1603                 }
1604                 fallthrough;
1605         case e1000_82571:
1606         case e1000_82572:
1607                 if (hw->phy.media_type == e1000_media_type_fiber ||
1608                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1609                         ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1610                         e1e_flush();
1611                         usleep_range(10000, 11000);
1612                         break;
1613                 }
1614                 fallthrough;
1615         default:
1616                 hw->mac.autoneg = 1;
1617                 if (hw->phy.type == e1000_phy_gg82563)
1618                         e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1619                 e1e_rphy(hw, MII_BMCR, &phy_reg);
1620                 if (phy_reg & BMCR_LOOPBACK) {
1621                         phy_reg &= ~BMCR_LOOPBACK;
1622                         e1e_wphy(hw, MII_BMCR, phy_reg);
1623                         if (hw->phy.ops.commit)
1624                                 hw->phy.ops.commit(hw);
1625                 }
1626                 break;
1627         }
1628 }
1629
1630 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1631                                       unsigned int frame_size)
1632 {
1633         memset(skb->data, 0xFF, frame_size);
1634         frame_size &= ~1;
1635         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1636         skb->data[frame_size / 2 + 10] = 0xBE;
1637         skb->data[frame_size / 2 + 12] = 0xAF;
1638 }
1639
1640 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1641                                     unsigned int frame_size)
1642 {
1643         frame_size &= ~1;
1644         if (*(skb->data + 3) == 0xFF)
1645                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1646                     (*(skb->data + frame_size / 2 + 12) == 0xAF))
1647                         return 0;
1648         return 13;
1649 }
1650
1651 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1652 {
1653         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1654         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1655         struct pci_dev *pdev = adapter->pdev;
1656         struct e1000_hw *hw = &adapter->hw;
1657         struct e1000_buffer *buffer_info;
1658         int i, j, k, l;
1659         int lc;
1660         int good_cnt;
1661         int ret_val = 0;
1662         unsigned long time;
1663
1664         ew32(RDT(0), rx_ring->count - 1);
1665
1666         /* Calculate the loop count based on the largest descriptor ring
1667          * The idea is to wrap the largest ring a number of times using 64
1668          * send/receive pairs during each loop
1669          */
1670
1671         if (rx_ring->count <= tx_ring->count)
1672                 lc = ((tx_ring->count / 64) * 2) + 1;
1673         else
1674                 lc = ((rx_ring->count / 64) * 2) + 1;
1675
1676         k = 0;
1677         l = 0;
1678         /* loop count loop */
1679         for (j = 0; j <= lc; j++) {
1680                 /* send the packets */
1681                 for (i = 0; i < 64; i++) {
1682                         buffer_info = &tx_ring->buffer_info[k];
1683
1684                         e1000_create_lbtest_frame(buffer_info->skb, 1024);
1685                         dma_sync_single_for_device(&pdev->dev,
1686                                                    buffer_info->dma,
1687                                                    buffer_info->length,
1688                                                    DMA_TO_DEVICE);
1689                         k++;
1690                         if (k == tx_ring->count)
1691                                 k = 0;
1692                 }
1693                 ew32(TDT(0), k);
1694                 e1e_flush();
1695                 msleep(200);
1696                 time = jiffies; /* set the start time for the receive */
1697                 good_cnt = 0;
1698                 /* receive the sent packets */
1699                 do {
1700                         buffer_info = &rx_ring->buffer_info[l];
1701
1702                         dma_sync_single_for_cpu(&pdev->dev,
1703                                                 buffer_info->dma, 2048,
1704                                                 DMA_FROM_DEVICE);
1705
1706                         ret_val = e1000_check_lbtest_frame(buffer_info->skb,
1707                                                            1024);
1708                         if (!ret_val)
1709                                 good_cnt++;
1710                         l++;
1711                         if (l == rx_ring->count)
1712                                 l = 0;
1713                         /* time + 20 msecs (200 msecs on 2.4) is more than
1714                          * enough time to complete the receives, if it's
1715                          * exceeded, break and error off
1716                          */
1717                 } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1718                 if (good_cnt != 64) {
1719                         ret_val = 13;   /* ret_val is the same as mis-compare */
1720                         break;
1721                 }
1722                 if (time_after(jiffies, time + 20)) {
1723                         ret_val = 14;   /* error code for time out error */
1724                         break;
1725                 }
1726         }
1727         return ret_val;
1728 }
1729
1730 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1731 {
1732         struct e1000_hw *hw = &adapter->hw;
1733
1734         /* PHY loopback cannot be performed if SoL/IDER sessions are active */
1735         if (hw->phy.ops.check_reset_block &&
1736             hw->phy.ops.check_reset_block(hw)) {
1737                 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1738                 *data = 0;
1739                 goto out;
1740         }
1741
1742         *data = e1000_setup_desc_rings(adapter);
1743         if (*data)
1744                 goto out;
1745
1746         *data = e1000_setup_loopback_test(adapter);
1747         if (*data)
1748                 goto err_loopback;
1749
1750         *data = e1000_run_loopback_test(adapter);
1751         e1000_loopback_cleanup(adapter);
1752
1753 err_loopback:
1754         e1000_free_desc_rings(adapter);
1755 out:
1756         return *data;
1757 }
1758
1759 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1760 {
1761         struct e1000_hw *hw = &adapter->hw;
1762
1763         *data = 0;
1764         if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1765                 int i = 0;
1766
1767                 hw->mac.serdes_has_link = false;
1768
1769                 /* On some blade server designs, link establishment
1770                  * could take as long as 2-3 minutes
1771                  */
1772                 do {
1773                         hw->mac.ops.check_for_link(hw);
1774                         if (hw->mac.serdes_has_link)
1775                                 return *data;
1776                         msleep(20);
1777                 } while (i++ < 3750);
1778
1779                 *data = 1;
1780         } else {
1781                 hw->mac.ops.check_for_link(hw);
1782                 if (hw->mac.autoneg)
1783                         /* On some Phy/switch combinations, link establishment
1784                          * can take a few seconds more than expected.
1785                          */
1786                         msleep_interruptible(5000);
1787
1788                 if (!(er32(STATUS) & E1000_STATUS_LU))
1789                         *data = 1;
1790         }
1791         return *data;
1792 }
1793
1794 static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
1795                                  int sset)
1796 {
1797         switch (sset) {
1798         case ETH_SS_TEST:
1799                 return E1000_TEST_LEN;
1800         case ETH_SS_STATS:
1801                 return E1000_STATS_LEN;
1802         case ETH_SS_PRIV_FLAGS:
1803                 return E1000E_PRIV_FLAGS_STR_LEN;
1804         default:
1805                 return -EOPNOTSUPP;
1806         }
1807 }
1808
1809 static void e1000_diag_test(struct net_device *netdev,
1810                             struct ethtool_test *eth_test, u64 *data)
1811 {
1812         struct e1000_adapter *adapter = netdev_priv(netdev);
1813         u16 autoneg_advertised;
1814         u8 forced_speed_duplex;
1815         u8 autoneg;
1816         bool if_running = netif_running(netdev);
1817
1818         pm_runtime_get_sync(netdev->dev.parent);
1819
1820         set_bit(__E1000_TESTING, &adapter->state);
1821
1822         if (!if_running) {
1823                 /* Get control of and reset hardware */
1824                 if (adapter->flags & FLAG_HAS_AMT)
1825                         e1000e_get_hw_control(adapter);
1826
1827                 e1000e_power_up_phy(adapter);
1828
1829                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1830                 e1000e_reset(adapter);
1831                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1832         }
1833
1834         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1835                 /* Offline tests */
1836
1837                 /* save speed, duplex, autoneg settings */
1838                 autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1839                 forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1840                 autoneg = adapter->hw.mac.autoneg;
1841
1842                 e_info("offline testing starting\n");
1843
1844                 if (if_running)
1845                         /* indicate we're in test mode */
1846                         e1000e_close(netdev);
1847
1848                 if (e1000_reg_test(adapter, &data[0]))
1849                         eth_test->flags |= ETH_TEST_FL_FAILED;
1850
1851                 e1000e_reset(adapter);
1852                 if (e1000_eeprom_test(adapter, &data[1]))
1853                         eth_test->flags |= ETH_TEST_FL_FAILED;
1854
1855                 e1000e_reset(adapter);
1856                 if (e1000_intr_test(adapter, &data[2]))
1857                         eth_test->flags |= ETH_TEST_FL_FAILED;
1858
1859                 e1000e_reset(adapter);
1860                 if (e1000_loopback_test(adapter, &data[3]))
1861                         eth_test->flags |= ETH_TEST_FL_FAILED;
1862
1863                 /* force this routine to wait until autoneg complete/timeout */
1864                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1865                 e1000e_reset(adapter);
1866                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1867
1868                 if (e1000_link_test(adapter, &data[4]))
1869                         eth_test->flags |= ETH_TEST_FL_FAILED;
1870
1871                 /* restore speed, duplex, autoneg settings */
1872                 adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1873                 adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1874                 adapter->hw.mac.autoneg = autoneg;
1875                 e1000e_reset(adapter);
1876
1877                 clear_bit(__E1000_TESTING, &adapter->state);
1878                 if (if_running)
1879                         e1000e_open(netdev);
1880         } else {
1881                 /* Online tests */
1882
1883                 e_info("online testing starting\n");
1884
1885                 /* register, eeprom, intr and loopback tests not run online */
1886                 data[0] = 0;
1887                 data[1] = 0;
1888                 data[2] = 0;
1889                 data[3] = 0;
1890
1891                 if (e1000_link_test(adapter, &data[4]))
1892                         eth_test->flags |= ETH_TEST_FL_FAILED;
1893
1894                 clear_bit(__E1000_TESTING, &adapter->state);
1895         }
1896
1897         if (!if_running) {
1898                 e1000e_reset(adapter);
1899
1900                 if (adapter->flags & FLAG_HAS_AMT)
1901                         e1000e_release_hw_control(adapter);
1902         }
1903
1904         msleep_interruptible(4 * 1000);
1905
1906         pm_runtime_put_sync(netdev->dev.parent);
1907 }
1908
1909 static void e1000_get_wol(struct net_device *netdev,
1910                           struct ethtool_wolinfo *wol)
1911 {
1912         struct e1000_adapter *adapter = netdev_priv(netdev);
1913
1914         wol->supported = 0;
1915         wol->wolopts = 0;
1916
1917         if (!(adapter->flags & FLAG_HAS_WOL) ||
1918             !device_can_wakeup(&adapter->pdev->dev))
1919                 return;
1920
1921         wol->supported = WAKE_UCAST | WAKE_MCAST |
1922             WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1923
1924         /* apply any specific unsupported masks here */
1925         if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1926                 wol->supported &= ~WAKE_UCAST;
1927
1928                 if (adapter->wol & E1000_WUFC_EX)
1929                         e_err("Interface does not support directed (unicast) frame wake-up packets\n");
1930         }
1931
1932         if (adapter->wol & E1000_WUFC_EX)
1933                 wol->wolopts |= WAKE_UCAST;
1934         if (adapter->wol & E1000_WUFC_MC)
1935                 wol->wolopts |= WAKE_MCAST;
1936         if (adapter->wol & E1000_WUFC_BC)
1937                 wol->wolopts |= WAKE_BCAST;
1938         if (adapter->wol & E1000_WUFC_MAG)
1939                 wol->wolopts |= WAKE_MAGIC;
1940         if (adapter->wol & E1000_WUFC_LNKC)
1941                 wol->wolopts |= WAKE_PHY;
1942 }
1943
1944 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1945 {
1946         struct e1000_adapter *adapter = netdev_priv(netdev);
1947
1948         if (!(adapter->flags & FLAG_HAS_WOL) ||
1949             !device_can_wakeup(&adapter->pdev->dev) ||
1950             (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1951                               WAKE_MAGIC | WAKE_PHY)))
1952                 return -EOPNOTSUPP;
1953
1954         /* these settings will always override what we currently have */
1955         adapter->wol = 0;
1956
1957         if (wol->wolopts & WAKE_UCAST)
1958                 adapter->wol |= E1000_WUFC_EX;
1959         if (wol->wolopts & WAKE_MCAST)
1960                 adapter->wol |= E1000_WUFC_MC;
1961         if (wol->wolopts & WAKE_BCAST)
1962                 adapter->wol |= E1000_WUFC_BC;
1963         if (wol->wolopts & WAKE_MAGIC)
1964                 adapter->wol |= E1000_WUFC_MAG;
1965         if (wol->wolopts & WAKE_PHY)
1966                 adapter->wol |= E1000_WUFC_LNKC;
1967
1968         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1969
1970         return 0;
1971 }
1972
1973 static int e1000_set_phys_id(struct net_device *netdev,
1974                              enum ethtool_phys_id_state state)
1975 {
1976         struct e1000_adapter *adapter = netdev_priv(netdev);
1977         struct e1000_hw *hw = &adapter->hw;
1978
1979         switch (state) {
1980         case ETHTOOL_ID_ACTIVE:
1981                 pm_runtime_get_sync(netdev->dev.parent);
1982
1983                 if (!hw->mac.ops.blink_led)
1984                         return 2;       /* cycle on/off twice per second */
1985
1986                 hw->mac.ops.blink_led(hw);
1987                 break;
1988
1989         case ETHTOOL_ID_INACTIVE:
1990                 if (hw->phy.type == e1000_phy_ife)
1991                         e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1992                 hw->mac.ops.led_off(hw);
1993                 hw->mac.ops.cleanup_led(hw);
1994                 pm_runtime_put_sync(netdev->dev.parent);
1995                 break;
1996
1997         case ETHTOOL_ID_ON:
1998                 hw->mac.ops.led_on(hw);
1999                 break;
2000
2001         case ETHTOOL_ID_OFF:
2002                 hw->mac.ops.led_off(hw);
2003                 break;
2004         }
2005
2006         return 0;
2007 }
2008
2009 static int e1000_get_coalesce(struct net_device *netdev,
2010                               struct ethtool_coalesce *ec,
2011                               struct kernel_ethtool_coalesce *kernel_coal,
2012                               struct netlink_ext_ack *extack)
2013 {
2014         struct e1000_adapter *adapter = netdev_priv(netdev);
2015
2016         if (adapter->itr_setting <= 4)
2017                 ec->rx_coalesce_usecs = adapter->itr_setting;
2018         else
2019                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
2020
2021         return 0;
2022 }
2023
2024 static int e1000_set_coalesce(struct net_device *netdev,
2025                               struct ethtool_coalesce *ec,
2026                               struct kernel_ethtool_coalesce *kernel_coal,
2027                               struct netlink_ext_ack *extack)
2028 {
2029         struct e1000_adapter *adapter = netdev_priv(netdev);
2030
2031         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
2032             ((ec->rx_coalesce_usecs > 4) &&
2033              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
2034             (ec->rx_coalesce_usecs == 2))
2035                 return -EINVAL;
2036
2037         if (ec->rx_coalesce_usecs == 4) {
2038                 adapter->itr_setting = 4;
2039                 adapter->itr = adapter->itr_setting;
2040         } else if (ec->rx_coalesce_usecs <= 3) {
2041                 adapter->itr = 20000;
2042                 adapter->itr_setting = ec->rx_coalesce_usecs;
2043         } else {
2044                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
2045                 adapter->itr_setting = adapter->itr & ~3;
2046         }
2047
2048         pm_runtime_get_sync(netdev->dev.parent);
2049
2050         if (adapter->itr_setting != 0)
2051                 e1000e_write_itr(adapter, adapter->itr);
2052         else
2053                 e1000e_write_itr(adapter, 0);
2054
2055         pm_runtime_put_sync(netdev->dev.parent);
2056
2057         return 0;
2058 }
2059
2060 static int e1000_nway_reset(struct net_device *netdev)
2061 {
2062         struct e1000_adapter *adapter = netdev_priv(netdev);
2063
2064         if (!netif_running(netdev))
2065                 return -EAGAIN;
2066
2067         if (!adapter->hw.mac.autoneg)
2068                 return -EINVAL;
2069
2070         pm_runtime_get_sync(netdev->dev.parent);
2071         e1000e_reinit_locked(adapter);
2072         pm_runtime_put_sync(netdev->dev.parent);
2073
2074         return 0;
2075 }
2076
2077 static void e1000_get_ethtool_stats(struct net_device *netdev,
2078                                     struct ethtool_stats __always_unused *stats,
2079                                     u64 *data)
2080 {
2081         struct e1000_adapter *adapter = netdev_priv(netdev);
2082         struct rtnl_link_stats64 net_stats;
2083         int i;
2084         char *p = NULL;
2085
2086         pm_runtime_get_sync(netdev->dev.parent);
2087
2088         dev_get_stats(netdev, &net_stats);
2089
2090         pm_runtime_put_sync(netdev->dev.parent);
2091
2092         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2093                 switch (e1000_gstrings_stats[i].type) {
2094                 case NETDEV_STATS:
2095                         p = (char *)&net_stats +
2096                             e1000_gstrings_stats[i].stat_offset;
2097                         break;
2098                 case E1000_STATS:
2099                         p = (char *)adapter +
2100                             e1000_gstrings_stats[i].stat_offset;
2101                         break;
2102                 default:
2103                         data[i] = 0;
2104                         continue;
2105                 }
2106
2107                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
2108                            sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
2109         }
2110 }
2111
2112 static void e1000_get_strings(struct net_device __always_unused *netdev,
2113                               u32 stringset, u8 *data)
2114 {
2115         u8 *p = data;
2116         int i;
2117
2118         switch (stringset) {
2119         case ETH_SS_TEST:
2120                 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
2121                 break;
2122         case ETH_SS_STATS:
2123                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2124                         memcpy(p, e1000_gstrings_stats[i].stat_string,
2125                                ETH_GSTRING_LEN);
2126                         p += ETH_GSTRING_LEN;
2127                 }
2128                 break;
2129         case ETH_SS_PRIV_FLAGS:
2130                 memcpy(data, e1000e_priv_flags_strings,
2131                        E1000E_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
2132                 break;
2133         }
2134 }
2135
2136 static int e1000_get_rxnfc(struct net_device *netdev,
2137                            struct ethtool_rxnfc *info,
2138                            u32 __always_unused *rule_locs)
2139 {
2140         info->data = 0;
2141
2142         switch (info->cmd) {
2143         case ETHTOOL_GRXFH: {
2144                 struct e1000_adapter *adapter = netdev_priv(netdev);
2145                 struct e1000_hw *hw = &adapter->hw;
2146                 u32 mrqc;
2147
2148                 pm_runtime_get_sync(netdev->dev.parent);
2149                 mrqc = er32(MRQC);
2150                 pm_runtime_put_sync(netdev->dev.parent);
2151
2152                 if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
2153                         return 0;
2154
2155                 switch (info->flow_type) {
2156                 case TCP_V4_FLOW:
2157                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
2158                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2159                         fallthrough;
2160                 case UDP_V4_FLOW:
2161                 case SCTP_V4_FLOW:
2162                 case AH_ESP_V4_FLOW:
2163                 case IPV4_FLOW:
2164                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
2165                                 info->data |= RXH_IP_SRC | RXH_IP_DST;
2166                         break;
2167                 case TCP_V6_FLOW:
2168                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
2169                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2170                         fallthrough;
2171                 case UDP_V6_FLOW:
2172                 case SCTP_V6_FLOW:
2173                 case AH_ESP_V6_FLOW:
2174                 case IPV6_FLOW:
2175                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
2176                                 info->data |= RXH_IP_SRC | RXH_IP_DST;
2177                         break;
2178                 default:
2179                         break;
2180                 }
2181                 return 0;
2182         }
2183         default:
2184                 return -EOPNOTSUPP;
2185         }
2186 }
2187
2188 static int e1000e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
2189 {
2190         struct e1000_adapter *adapter = netdev_priv(netdev);
2191         struct e1000_hw *hw = &adapter->hw;
2192         u16 cap_addr, lpa_addr, pcs_stat_addr, phy_data;
2193         u32 ret_val;
2194
2195         if (!(adapter->flags2 & FLAG2_HAS_EEE))
2196                 return -EOPNOTSUPP;
2197
2198         switch (hw->phy.type) {
2199         case e1000_phy_82579:
2200                 cap_addr = I82579_EEE_CAPABILITY;
2201                 lpa_addr = I82579_EEE_LP_ABILITY;
2202                 pcs_stat_addr = I82579_EEE_PCS_STATUS;
2203                 break;
2204         case e1000_phy_i217:
2205                 cap_addr = I217_EEE_CAPABILITY;
2206                 lpa_addr = I217_EEE_LP_ABILITY;
2207                 pcs_stat_addr = I217_EEE_PCS_STATUS;
2208                 break;
2209         default:
2210                 return -EOPNOTSUPP;
2211         }
2212
2213         pm_runtime_get_sync(netdev->dev.parent);
2214
2215         ret_val = hw->phy.ops.acquire(hw);
2216         if (ret_val) {
2217                 pm_runtime_put_sync(netdev->dev.parent);
2218                 return -EBUSY;
2219         }
2220
2221         /* EEE Capability */
2222         ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
2223         if (ret_val)
2224                 goto release;
2225         edata->supported = mmd_eee_cap_to_ethtool_sup_t(phy_data);
2226
2227         /* EEE Advertised */
2228         edata->advertised = mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
2229
2230         /* EEE Link Partner Advertised */
2231         ret_val = e1000_read_emi_reg_locked(hw, lpa_addr, &phy_data);
2232         if (ret_val)
2233                 goto release;
2234         edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
2235
2236         /* EEE PCS Status */
2237         ret_val = e1000_read_emi_reg_locked(hw, pcs_stat_addr, &phy_data);
2238         if (ret_val)
2239                 goto release;
2240         if (hw->phy.type == e1000_phy_82579)
2241                 phy_data <<= 8;
2242
2243         /* Result of the EEE auto negotiation - there is no register that
2244          * has the status of the EEE negotiation so do a best-guess based
2245          * on whether Tx or Rx LPI indications have been received.
2246          */
2247         if (phy_data & (E1000_EEE_TX_LPI_RCVD | E1000_EEE_RX_LPI_RCVD))
2248                 edata->eee_active = true;
2249
2250         edata->eee_enabled = !hw->dev_spec.ich8lan.eee_disable;
2251         edata->tx_lpi_enabled = true;
2252         edata->tx_lpi_timer = er32(LPIC) >> E1000_LPIC_LPIET_SHIFT;
2253
2254 release:
2255         hw->phy.ops.release(hw);
2256         if (ret_val)
2257                 ret_val = -ENODATA;
2258
2259         pm_runtime_put_sync(netdev->dev.parent);
2260
2261         return ret_val;
2262 }
2263
2264 static int e1000e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
2265 {
2266         struct e1000_adapter *adapter = netdev_priv(netdev);
2267         struct e1000_hw *hw = &adapter->hw;
2268         struct ethtool_eee eee_curr;
2269         s32 ret_val;
2270
2271         ret_val = e1000e_get_eee(netdev, &eee_curr);
2272         if (ret_val)
2273                 return ret_val;
2274
2275         if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
2276                 e_err("Setting EEE tx-lpi is not supported\n");
2277                 return -EINVAL;
2278         }
2279
2280         if (eee_curr.tx_lpi_timer != edata->tx_lpi_timer) {
2281                 e_err("Setting EEE Tx LPI timer is not supported\n");
2282                 return -EINVAL;
2283         }
2284
2285         if (edata->advertised & ~(ADVERTISE_100_FULL | ADVERTISE_1000_FULL)) {
2286                 e_err("EEE advertisement supports only 100TX and/or 1000T full-duplex\n");
2287                 return -EINVAL;
2288         }
2289
2290         adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
2291
2292         hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
2293
2294         pm_runtime_get_sync(netdev->dev.parent);
2295
2296         /* reset the link */
2297         if (netif_running(netdev))
2298                 e1000e_reinit_locked(adapter);
2299         else
2300                 e1000e_reset(adapter);
2301
2302         pm_runtime_put_sync(netdev->dev.parent);
2303
2304         return 0;
2305 }
2306
2307 static int e1000e_get_ts_info(struct net_device *netdev,
2308                               struct ethtool_ts_info *info)
2309 {
2310         struct e1000_adapter *adapter = netdev_priv(netdev);
2311
2312         ethtool_op_get_ts_info(netdev, info);
2313
2314         if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
2315                 return 0;
2316
2317         info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
2318                                   SOF_TIMESTAMPING_RX_HARDWARE |
2319                                   SOF_TIMESTAMPING_RAW_HARDWARE);
2320
2321         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2322
2323         info->rx_filters = (BIT(HWTSTAMP_FILTER_NONE) |
2324                             BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2325                             BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2326                             BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2327                             BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
2328                             BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2329                             BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
2330                             BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2331                             BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2332                             BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2333                             BIT(HWTSTAMP_FILTER_ALL));
2334
2335         if (adapter->ptp_clock)
2336                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
2337
2338         return 0;
2339 }
2340
2341 static u32 e1000e_get_priv_flags(struct net_device *netdev)
2342 {
2343         struct e1000_adapter *adapter = netdev_priv(netdev);
2344         u32 priv_flags = 0;
2345
2346         if (adapter->flags2 & FLAG2_ENABLE_S0IX_FLOWS)
2347                 priv_flags |= E1000E_PRIV_FLAGS_S0IX_ENABLED;
2348
2349         return priv_flags;
2350 }
2351
2352 static int e1000e_set_priv_flags(struct net_device *netdev, u32 priv_flags)
2353 {
2354         struct e1000_adapter *adapter = netdev_priv(netdev);
2355         unsigned int flags2 = adapter->flags2;
2356
2357         flags2 &= ~FLAG2_ENABLE_S0IX_FLOWS;
2358         if (priv_flags & E1000E_PRIV_FLAGS_S0IX_ENABLED) {
2359                 struct e1000_hw *hw = &adapter->hw;
2360
2361                 if (hw->mac.type < e1000_pch_cnp)
2362                         return -EINVAL;
2363                 flags2 |= FLAG2_ENABLE_S0IX_FLOWS;
2364         }
2365
2366         if (flags2 != adapter->flags2)
2367                 adapter->flags2 = flags2;
2368
2369         return 0;
2370 }
2371
2372 static const struct ethtool_ops e1000_ethtool_ops = {
2373         .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS,
2374         .get_drvinfo            = e1000_get_drvinfo,
2375         .get_regs_len           = e1000_get_regs_len,
2376         .get_regs               = e1000_get_regs,
2377         .get_wol                = e1000_get_wol,
2378         .set_wol                = e1000_set_wol,
2379         .get_msglevel           = e1000_get_msglevel,
2380         .set_msglevel           = e1000_set_msglevel,
2381         .nway_reset             = e1000_nway_reset,
2382         .get_link               = ethtool_op_get_link,
2383         .get_eeprom_len         = e1000_get_eeprom_len,
2384         .get_eeprom             = e1000_get_eeprom,
2385         .set_eeprom             = e1000_set_eeprom,
2386         .get_ringparam          = e1000_get_ringparam,
2387         .set_ringparam          = e1000_set_ringparam,
2388         .get_pauseparam         = e1000_get_pauseparam,
2389         .set_pauseparam         = e1000_set_pauseparam,
2390         .self_test              = e1000_diag_test,
2391         .get_strings            = e1000_get_strings,
2392         .set_phys_id            = e1000_set_phys_id,
2393         .get_ethtool_stats      = e1000_get_ethtool_stats,
2394         .get_sset_count         = e1000e_get_sset_count,
2395         .get_coalesce           = e1000_get_coalesce,
2396         .set_coalesce           = e1000_set_coalesce,
2397         .get_rxnfc              = e1000_get_rxnfc,
2398         .get_ts_info            = e1000e_get_ts_info,
2399         .get_eee                = e1000e_get_eee,
2400         .set_eee                = e1000e_set_eee,
2401         .get_link_ksettings     = e1000_get_link_ksettings,
2402         .set_link_ksettings     = e1000_set_link_ksettings,
2403         .get_priv_flags         = e1000e_get_priv_flags,
2404         .set_priv_flags         = e1000e_set_priv_flags,
2405 };
2406
2407 void e1000e_set_ethtool_ops(struct net_device *netdev)
2408 {
2409         netdev->ethtool_ops = &e1000_ethtool_ops;
2410 }