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

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DEFINITIONS

This source file includes following definitions.
  1. e1000_get_link_ksettings
  2. e1000_set_spd_dplx
  3. e1000_set_link_ksettings
  4. e1000_get_pauseparam
  5. e1000_set_pauseparam
  6. e1000_get_msglevel
  7. e1000_set_msglevel
  8. e1000_get_regs_len
  9. e1000_get_regs
  10. e1000_get_eeprom_len
  11. e1000_get_eeprom
  12. e1000_set_eeprom
  13. e1000_get_drvinfo
  14. e1000_get_ringparam
  15. e1000_set_ringparam
  16. reg_pattern_test
  17. reg_set_and_check
  18. e1000_reg_test
  19. e1000_eeprom_test
  20. e1000_test_intr
  21. e1000_intr_test
  22. e1000_free_desc_rings
  23. e1000_setup_desc_rings
  24. e1000_phy_disable_receiver
  25. e1000_integrated_phy_loopback
  26. e1000_set_82571_fiber_loopback
  27. e1000_set_es2lan_mac_loopback
  28. e1000_setup_loopback_test
  29. e1000_loopback_cleanup
  30. e1000_create_lbtest_frame
  31. e1000_check_lbtest_frame
  32. e1000_run_loopback_test
  33. e1000_loopback_test
  34. e1000_link_test
  35. e1000e_get_sset_count
  36. e1000_diag_test
  37. e1000_get_wol
  38. e1000_set_wol
  39. e1000_set_phys_id
  40. e1000_get_coalesce
  41. e1000_set_coalesce
  42. e1000_nway_reset
  43. e1000_get_ethtool_stats
  44. e1000_get_strings
  45. e1000_get_rxnfc
  46. e1000e_get_eee
  47. e1000e_set_eee
  48. e1000e_get_ts_info
  49. e1000e_set_ethtool_ops

   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 #define E1000_STAT(str, m) { \
  27                 .stat_string = str, \
  28                 .type = E1000_STATS, \
  29                 .sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
  30                 .stat_offset = offsetof(struct e1000_adapter, m) }
  31 #define E1000_NETDEV_STAT(str, m) { \
  32                 .stat_string = str, \
  33                 .type = NETDEV_STATS, \
  34                 .sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
  35                 .stat_offset = offsetof(struct rtnl_link_stats64, m) }
  36 
  37 static const struct e1000_stats e1000_gstrings_stats[] = {
  38         E1000_STAT("rx_packets", stats.gprc),
  39         E1000_STAT("tx_packets", stats.gptc),
  40         E1000_STAT("rx_bytes", stats.gorc),
  41         E1000_STAT("tx_bytes", stats.gotc),
  42         E1000_STAT("rx_broadcast", stats.bprc),
  43         E1000_STAT("tx_broadcast", stats.bptc),
  44         E1000_STAT("rx_multicast", stats.mprc),
  45         E1000_STAT("tx_multicast", stats.mptc),
  46         E1000_NETDEV_STAT("rx_errors", rx_errors),
  47         E1000_NETDEV_STAT("tx_errors", tx_errors),
  48         E1000_NETDEV_STAT("tx_dropped", tx_dropped),
  49         E1000_STAT("multicast", stats.mprc),
  50         E1000_STAT("collisions", stats.colc),
  51         E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
  52         E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
  53         E1000_STAT("rx_crc_errors", stats.crcerrs),
  54         E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
  55         E1000_STAT("rx_no_buffer_count", stats.rnbc),
  56         E1000_STAT("rx_missed_errors", stats.mpc),
  57         E1000_STAT("tx_aborted_errors", stats.ecol),
  58         E1000_STAT("tx_carrier_errors", stats.tncrs),
  59         E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
  60         E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
  61         E1000_STAT("tx_window_errors", stats.latecol),
  62         E1000_STAT("tx_abort_late_coll", stats.latecol),
  63         E1000_STAT("tx_deferred_ok", stats.dc),
  64         E1000_STAT("tx_single_coll_ok", stats.scc),
  65         E1000_STAT("tx_multi_coll_ok", stats.mcc),
  66         E1000_STAT("tx_timeout_count", tx_timeout_count),
  67         E1000_STAT("tx_restart_queue", restart_queue),
  68         E1000_STAT("rx_long_length_errors", stats.roc),
  69         E1000_STAT("rx_short_length_errors", stats.ruc),
  70         E1000_STAT("rx_align_errors", stats.algnerrc),
  71         E1000_STAT("tx_tcp_seg_good", stats.tsctc),
  72         E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
  73         E1000_STAT("rx_flow_control_xon", stats.xonrxc),
  74         E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
  75         E1000_STAT("tx_flow_control_xon", stats.xontxc),
  76         E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
  77         E1000_STAT("rx_csum_offload_good", hw_csum_good),
  78         E1000_STAT("rx_csum_offload_errors", hw_csum_err),
  79         E1000_STAT("rx_header_split", rx_hdr_split),
  80         E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
  81         E1000_STAT("tx_smbus", stats.mgptc),
  82         E1000_STAT("rx_smbus", stats.mgprc),
  83         E1000_STAT("dropped_smbus", stats.mgpdc),
  84         E1000_STAT("rx_dma_failed", rx_dma_failed),
  85         E1000_STAT("tx_dma_failed", tx_dma_failed),
  86         E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
  87         E1000_STAT("uncorr_ecc_errors", uncorr_errors),
  88         E1000_STAT("corr_ecc_errors", corr_errors),
  89         E1000_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
  90         E1000_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
  91 };
  92 
  93 #define E1000_GLOBAL_STATS_LEN  ARRAY_SIZE(e1000_gstrings_stats)
  94 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
  95 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
  96         "Register test  (offline)", "Eeprom test    (offline)",
  97         "Interrupt test (offline)", "Loopback test  (offline)",
  98         "Link test   (on/offline)"
  99 };
 100 
 101 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 102 
 103 static int e1000_get_link_ksettings(struct net_device *netdev,
 104                                     struct ethtool_link_ksettings *cmd)
 105 {
 106         struct e1000_adapter *adapter = netdev_priv(netdev);
 107         struct e1000_hw *hw = &adapter->hw;
 108         u32 speed, supported, advertising;
 109 
 110         if (hw->phy.media_type == e1000_media_type_copper) {
 111                 supported = (SUPPORTED_10baseT_Half |
 112                              SUPPORTED_10baseT_Full |
 113                              SUPPORTED_100baseT_Half |
 114                              SUPPORTED_100baseT_Full |
 115                              SUPPORTED_1000baseT_Full |
 116                              SUPPORTED_Autoneg |
 117                              SUPPORTED_TP);
 118                 if (hw->phy.type == e1000_phy_ife)
 119                         supported &= ~SUPPORTED_1000baseT_Full;
 120                 advertising = ADVERTISED_TP;
 121 
 122                 if (hw->mac.autoneg == 1) {
 123                         advertising |= ADVERTISED_Autoneg;
 124                         /* the e1000 autoneg seems to match ethtool nicely */
 125                         advertising |= hw->phy.autoneg_advertised;
 126                 }
 127 
 128                 cmd->base.port = PORT_TP;
 129                 cmd->base.phy_address = hw->phy.addr;
 130         } else {
 131                 supported   = (SUPPORTED_1000baseT_Full |
 132                                SUPPORTED_FIBRE |
 133                                SUPPORTED_Autoneg);
 134 
 135                 advertising = (ADVERTISED_1000baseT_Full |
 136                                ADVERTISED_FIBRE |
 137                                ADVERTISED_Autoneg);
 138 
 139                 cmd->base.port = PORT_FIBRE;
 140         }
 141 
 142         speed = SPEED_UNKNOWN;
 143         cmd->base.duplex = DUPLEX_UNKNOWN;
 144 
 145         if (netif_running(netdev)) {
 146                 if (netif_carrier_ok(netdev)) {
 147                         speed = adapter->link_speed;
 148                         cmd->base.duplex = adapter->link_duplex - 1;
 149                 }
 150         } else if (!pm_runtime_suspended(netdev->dev.parent)) {
 151                 u32 status = er32(STATUS);
 152 
 153                 if (status & E1000_STATUS_LU) {
 154                         if (status & E1000_STATUS_SPEED_1000)
 155                                 speed = SPEED_1000;
 156                         else if (status & E1000_STATUS_SPEED_100)
 157                                 speed = SPEED_100;
 158                         else
 159                                 speed = SPEED_10;
 160 
 161                         if (status & E1000_STATUS_FD)
 162                                 cmd->base.duplex = DUPLEX_FULL;
 163                         else
 164                                 cmd->base.duplex = DUPLEX_HALF;
 165                 }
 166         }
 167 
 168         cmd->base.speed = speed;
 169         cmd->base.autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 170                          hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 171 
 172         /* MDI-X => 2; MDI =>1; Invalid =>0 */
 173         if ((hw->phy.media_type == e1000_media_type_copper) &&
 174             netif_carrier_ok(netdev))
 175                 cmd->base.eth_tp_mdix = hw->phy.is_mdix ?
 176                         ETH_TP_MDI_X : ETH_TP_MDI;
 177         else
 178                 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
 179 
 180         if (hw->phy.mdix == AUTO_ALL_MODES)
 181                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 182         else
 183                 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
 184 
 185         if (hw->phy.media_type != e1000_media_type_copper)
 186                 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
 187 
 188         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
 189                                                 supported);
 190         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
 191                                                 advertising);
 192 
 193         return 0;
 194 }
 195 
 196 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 197 {
 198         struct e1000_mac_info *mac = &adapter->hw.mac;
 199 
 200         mac->autoneg = 0;
 201 
 202         /* Make sure dplx is at most 1 bit and lsb of speed is not set
 203          * for the switch() below to work
 204          */
 205         if ((spd & 1) || (dplx & ~1))
 206                 goto err_inval;
 207 
 208         /* Fiber NICs only allow 1000 gbps Full duplex */
 209         if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 210             (spd != SPEED_1000) && (dplx != DUPLEX_FULL)) {
 211                 goto err_inval;
 212         }
 213 
 214         switch (spd + dplx) {
 215         case SPEED_10 + DUPLEX_HALF:
 216                 mac->forced_speed_duplex = ADVERTISE_10_HALF;
 217                 break;
 218         case SPEED_10 + DUPLEX_FULL:
 219                 mac->forced_speed_duplex = ADVERTISE_10_FULL;
 220                 break;
 221         case SPEED_100 + DUPLEX_HALF:
 222                 mac->forced_speed_duplex = ADVERTISE_100_HALF;
 223                 break;
 224         case SPEED_100 + DUPLEX_FULL:
 225                 mac->forced_speed_duplex = ADVERTISE_100_FULL;
 226                 break;
 227         case SPEED_1000 + DUPLEX_FULL:
 228                 if (adapter->hw.phy.media_type == e1000_media_type_copper) {
 229                         mac->autoneg = 1;
 230                         adapter->hw.phy.autoneg_advertised =
 231                                 ADVERTISE_1000_FULL;
 232                 } else {
 233                         mac->forced_speed_duplex = ADVERTISE_1000_FULL;
 234                 }
 235                 break;
 236         case SPEED_1000 + DUPLEX_HALF:  /* not supported */
 237         default:
 238                 goto err_inval;
 239         }
 240 
 241         /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
 242         adapter->hw.phy.mdix = AUTO_ALL_MODES;
 243 
 244         return 0;
 245 
 246 err_inval:
 247         e_err("Unsupported Speed/Duplex configuration\n");
 248         return -EINVAL;
 249 }
 250 
 251 static int e1000_set_link_ksettings(struct net_device *netdev,
 252                                     const struct ethtool_link_ksettings *cmd)
 253 {
 254         struct e1000_adapter *adapter = netdev_priv(netdev);
 255         struct e1000_hw *hw = &adapter->hw;
 256         int ret_val = 0;
 257         u32 advertising;
 258 
 259         ethtool_convert_link_mode_to_legacy_u32(&advertising,
 260                                                 cmd->link_modes.advertising);
 261 
 262         pm_runtime_get_sync(netdev->dev.parent);
 263 
 264         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 265          * cannot be changed
 266          */
 267         if (hw->phy.ops.check_reset_block &&
 268             hw->phy.ops.check_reset_block(hw)) {
 269                 e_err("Cannot change link characteristics when SoL/IDER is active.\n");
 270                 ret_val = -EINVAL;
 271                 goto out;
 272         }
 273 
 274         /* MDI setting is only allowed when autoneg enabled because
 275          * some hardware doesn't allow MDI setting when speed or
 276          * duplex is forced.
 277          */
 278         if (cmd->base.eth_tp_mdix_ctrl) {
 279                 if (hw->phy.media_type != e1000_media_type_copper) {
 280                         ret_val = -EOPNOTSUPP;
 281                         goto out;
 282                 }
 283 
 284                 if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
 285                     (cmd->base.autoneg != AUTONEG_ENABLE)) {
 286                         e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
 287                         ret_val = -EINVAL;
 288                         goto out;
 289                 }
 290         }
 291 
 292         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 293                 usleep_range(1000, 2000);
 294 
 295         if (cmd->base.autoneg == AUTONEG_ENABLE) {
 296                 hw->mac.autoneg = 1;
 297                 if (hw->phy.media_type == e1000_media_type_fiber)
 298                         hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 299                             ADVERTISED_FIBRE | ADVERTISED_Autoneg;
 300                 else
 301                         hw->phy.autoneg_advertised = advertising |
 302                             ADVERTISED_TP | ADVERTISED_Autoneg;
 303                 advertising = hw->phy.autoneg_advertised;
 304                 if (adapter->fc_autoneg)
 305                         hw->fc.requested_mode = e1000_fc_default;
 306         } else {
 307                 u32 speed = cmd->base.speed;
 308                 /* calling this overrides forced MDI setting */
 309                 if (e1000_set_spd_dplx(adapter, speed, cmd->base.duplex)) {
 310                         ret_val = -EINVAL;
 311                         goto out;
 312                 }
 313         }
 314 
 315         /* MDI-X => 2; MDI => 1; Auto => 3 */
 316         if (cmd->base.eth_tp_mdix_ctrl) {
 317                 /* fix up the value for auto (3 => 0) as zero is mapped
 318                  * internally to auto
 319                  */
 320                 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
 321                         hw->phy.mdix = AUTO_ALL_MODES;
 322                 else
 323                         hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
 324         }
 325 
 326         /* reset the link */
 327         if (netif_running(adapter->netdev)) {
 328                 e1000e_down(adapter, true);
 329                 e1000e_up(adapter);
 330         } else {
 331                 e1000e_reset(adapter);
 332         }
 333 
 334 out:
 335         pm_runtime_put_sync(netdev->dev.parent);
 336         clear_bit(__E1000_RESETTING, &adapter->state);
 337         return ret_val;
 338 }
 339 
 340 static void e1000_get_pauseparam(struct net_device *netdev,
 341                                  struct ethtool_pauseparam *pause)
 342 {
 343         struct e1000_adapter *adapter = netdev_priv(netdev);
 344         struct e1000_hw *hw = &adapter->hw;
 345 
 346         pause->autoneg =
 347             (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 348 
 349         if (hw->fc.current_mode == e1000_fc_rx_pause) {
 350                 pause->rx_pause = 1;
 351         } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 352                 pause->tx_pause = 1;
 353         } else if (hw->fc.current_mode == e1000_fc_full) {
 354                 pause->rx_pause = 1;
 355                 pause->tx_pause = 1;
 356         }
 357 }
 358 
 359 static int e1000_set_pauseparam(struct net_device *netdev,
 360                                 struct ethtool_pauseparam *pause)
 361 {
 362         struct e1000_adapter *adapter = netdev_priv(netdev);
 363         struct e1000_hw *hw = &adapter->hw;
 364         int retval = 0;
 365 
 366         adapter->fc_autoneg = pause->autoneg;
 367 
 368         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 369                 usleep_range(1000, 2000);
 370 
 371         pm_runtime_get_sync(netdev->dev.parent);
 372 
 373         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 374                 hw->fc.requested_mode = e1000_fc_default;
 375                 if (netif_running(adapter->netdev)) {
 376                         e1000e_down(adapter, true);
 377                         e1000e_up(adapter);
 378                 } else {
 379                         e1000e_reset(adapter);
 380                 }
 381         } else {
 382                 if (pause->rx_pause && pause->tx_pause)
 383                         hw->fc.requested_mode = e1000_fc_full;
 384                 else if (pause->rx_pause && !pause->tx_pause)
 385                         hw->fc.requested_mode = e1000_fc_rx_pause;
 386                 else if (!pause->rx_pause && pause->tx_pause)
 387                         hw->fc.requested_mode = e1000_fc_tx_pause;
 388                 else if (!pause->rx_pause && !pause->tx_pause)
 389                         hw->fc.requested_mode = e1000_fc_none;
 390 
 391                 hw->fc.current_mode = hw->fc.requested_mode;
 392 
 393                 if (hw->phy.media_type == e1000_media_type_fiber) {
 394                         retval = hw->mac.ops.setup_link(hw);
 395                         /* implicit goto out */
 396                 } else {
 397                         retval = e1000e_force_mac_fc(hw);
 398                         if (retval)
 399                                 goto out;
 400                         e1000e_set_fc_watermarks(hw);
 401                 }
 402         }
 403 
 404 out:
 405         pm_runtime_put_sync(netdev->dev.parent);
 406         clear_bit(__E1000_RESETTING, &adapter->state);
 407         return retval;
 408 }
 409 
 410 static u32 e1000_get_msglevel(struct net_device *netdev)
 411 {
 412         struct e1000_adapter *adapter = netdev_priv(netdev);
 413         return adapter->msg_enable;
 414 }
 415 
 416 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 417 {
 418         struct e1000_adapter *adapter = netdev_priv(netdev);
 419         adapter->msg_enable = data;
 420 }
 421 
 422 static int e1000_get_regs_len(struct net_device __always_unused *netdev)
 423 {
 424 #define E1000_REGS_LEN 32       /* overestimate */
 425         return E1000_REGS_LEN * sizeof(u32);
 426 }
 427 
 428 static void e1000_get_regs(struct net_device *netdev,
 429                            struct ethtool_regs *regs, void *p)
 430 {
 431         struct e1000_adapter *adapter = netdev_priv(netdev);
 432         struct e1000_hw *hw = &adapter->hw;
 433         u32 *regs_buff = p;
 434         u16 phy_data;
 435 
 436         pm_runtime_get_sync(netdev->dev.parent);
 437 
 438         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 439 
 440         regs->version = (1u << 24) |
 441                         (adapter->pdev->revision << 16) |
 442                         adapter->pdev->device;
 443 
 444         regs_buff[0] = er32(CTRL);
 445         regs_buff[1] = er32(STATUS);
 446 
 447         regs_buff[2] = er32(RCTL);
 448         regs_buff[3] = er32(RDLEN(0));
 449         regs_buff[4] = er32(RDH(0));
 450         regs_buff[5] = er32(RDT(0));
 451         regs_buff[6] = er32(RDTR);
 452 
 453         regs_buff[7] = er32(TCTL);
 454         regs_buff[8] = er32(TDLEN(0));
 455         regs_buff[9] = er32(TDH(0));
 456         regs_buff[10] = er32(TDT(0));
 457         regs_buff[11] = er32(TIDV);
 458 
 459         regs_buff[12] = adapter->hw.phy.type;   /* PHY type (IGP=1, M88=0) */
 460 
 461         /* ethtool doesn't use anything past this point, so all this
 462          * code is likely legacy junk for apps that may or may not exist
 463          */
 464         if (hw->phy.type == e1000_phy_m88) {
 465                 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 466                 regs_buff[13] = (u32)phy_data; /* cable length */
 467                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 468                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 469                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 470                 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 471                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 472                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 473                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 474                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 475                 /* phy receive errors */
 476                 regs_buff[22] = adapter->phy_stats.receive_errors;
 477                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 478         }
 479         regs_buff[21] = 0;      /* was idle_errors */
 480         e1e_rphy(hw, MII_STAT1000, &phy_data);
 481         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 482         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 483 
 484         pm_runtime_put_sync(netdev->dev.parent);
 485 }
 486 
 487 static int e1000_get_eeprom_len(struct net_device *netdev)
 488 {
 489         struct e1000_adapter *adapter = netdev_priv(netdev);
 490         return adapter->hw.nvm.word_size * 2;
 491 }
 492 
 493 static int e1000_get_eeprom(struct net_device *netdev,
 494                             struct ethtool_eeprom *eeprom, u8 *bytes)
 495 {
 496         struct e1000_adapter *adapter = netdev_priv(netdev);
 497         struct e1000_hw *hw = &adapter->hw;
 498         u16 *eeprom_buff;
 499         int first_word;
 500         int last_word;
 501         int ret_val = 0;
 502         u16 i;
 503 
 504         if (eeprom->len == 0)
 505                 return -EINVAL;
 506 
 507         eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 508 
 509         first_word = eeprom->offset >> 1;
 510         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 511 
 512         eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
 513                                     GFP_KERNEL);
 514         if (!eeprom_buff)
 515                 return -ENOMEM;
 516 
 517         pm_runtime_get_sync(netdev->dev.parent);
 518 
 519         if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 520                 ret_val = e1000_read_nvm(hw, first_word,
 521                                          last_word - first_word + 1,
 522                                          eeprom_buff);
 523         } else {
 524                 for (i = 0; i < last_word - first_word + 1; i++) {
 525                         ret_val = e1000_read_nvm(hw, first_word + i, 1,
 526                                                  &eeprom_buff[i]);
 527                         if (ret_val)
 528                                 break;
 529                 }
 530         }
 531 
 532         pm_runtime_put_sync(netdev->dev.parent);
 533 
 534         if (ret_val) {
 535                 /* a read error occurred, throw away the result */
 536                 memset(eeprom_buff, 0xff, sizeof(u16) *
 537                        (last_word - first_word + 1));
 538         } else {
 539                 /* Device's eeprom is always little-endian, word addressable */
 540                 for (i = 0; i < last_word - first_word + 1; i++)
 541                         le16_to_cpus(&eeprom_buff[i]);
 542         }
 543 
 544         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 545         kfree(eeprom_buff);
 546 
 547         return ret_val;
 548 }
 549 
 550 static int e1000_set_eeprom(struct net_device *netdev,
 551                             struct ethtool_eeprom *eeprom, u8 *bytes)
 552 {
 553         struct e1000_adapter *adapter = netdev_priv(netdev);
 554         struct e1000_hw *hw = &adapter->hw;
 555         u16 *eeprom_buff;
 556         void *ptr;
 557         int max_len;
 558         int first_word;
 559         int last_word;
 560         int ret_val = 0;
 561         u16 i;
 562 
 563         if (eeprom->len == 0)
 564                 return -EOPNOTSUPP;
 565 
 566         if (eeprom->magic !=
 567             (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 568                 return -EFAULT;
 569 
 570         if (adapter->flags & FLAG_READ_ONLY_NVM)
 571                 return -EINVAL;
 572 
 573         max_len = hw->nvm.word_size * 2;
 574 
 575         first_word = eeprom->offset >> 1;
 576         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 577         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 578         if (!eeprom_buff)
 579                 return -ENOMEM;
 580 
 581         ptr = (void *)eeprom_buff;
 582 
 583         pm_runtime_get_sync(netdev->dev.parent);
 584 
 585         if (eeprom->offset & 1) {
 586                 /* need read/modify/write of first changed EEPROM word */
 587                 /* only the second byte of the word is being modified */
 588                 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 589                 ptr++;
 590         }
 591         if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
 592                 /* need read/modify/write of last changed EEPROM word */
 593                 /* only the first byte of the word is being modified */
 594                 ret_val = e1000_read_nvm(hw, last_word, 1,
 595                                          &eeprom_buff[last_word - first_word]);
 596 
 597         if (ret_val)
 598                 goto out;
 599 
 600         /* Device's eeprom is always little-endian, word addressable */
 601         for (i = 0; i < last_word - first_word + 1; i++)
 602                 le16_to_cpus(&eeprom_buff[i]);
 603 
 604         memcpy(ptr, bytes, eeprom->len);
 605 
 606         for (i = 0; i < last_word - first_word + 1; i++)
 607                 cpu_to_le16s(&eeprom_buff[i]);
 608 
 609         ret_val = e1000_write_nvm(hw, first_word,
 610                                   last_word - first_word + 1, eeprom_buff);
 611 
 612         if (ret_val)
 613                 goto out;
 614 
 615         /* Update the checksum over the first part of the EEPROM if needed
 616          * and flush shadow RAM for applicable controllers
 617          */
 618         if ((first_word <= NVM_CHECKSUM_REG) ||
 619             (hw->mac.type == e1000_82583) ||
 620             (hw->mac.type == e1000_82574) ||
 621             (hw->mac.type == e1000_82573))
 622                 ret_val = e1000e_update_nvm_checksum(hw);
 623 
 624 out:
 625         pm_runtime_put_sync(netdev->dev.parent);
 626         kfree(eeprom_buff);
 627         return ret_val;
 628 }
 629 
 630 static void e1000_get_drvinfo(struct net_device *netdev,
 631                               struct ethtool_drvinfo *drvinfo)
 632 {
 633         struct e1000_adapter *adapter = netdev_priv(netdev);
 634 
 635         strlcpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver));
 636         strlcpy(drvinfo->version, e1000e_driver_version,
 637                 sizeof(drvinfo->version));
 638 
 639         /* EEPROM image version # is reported as firmware version # for
 640          * PCI-E controllers
 641          */
 642         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
 643                  "%d.%d-%d",
 644                  (adapter->eeprom_vers & 0xF000) >> 12,
 645                  (adapter->eeprom_vers & 0x0FF0) >> 4,
 646                  (adapter->eeprom_vers & 0x000F));
 647 
 648         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 649                 sizeof(drvinfo->bus_info));
 650 }
 651 
 652 static void e1000_get_ringparam(struct net_device *netdev,
 653                                 struct ethtool_ringparam *ring)
 654 {
 655         struct e1000_adapter *adapter = netdev_priv(netdev);
 656 
 657         ring->rx_max_pending = E1000_MAX_RXD;
 658         ring->tx_max_pending = E1000_MAX_TXD;
 659         ring->rx_pending = adapter->rx_ring_count;
 660         ring->tx_pending = adapter->tx_ring_count;
 661 }
 662 
 663 static int e1000_set_ringparam(struct net_device *netdev,
 664                                struct ethtool_ringparam *ring)
 665 {
 666         struct e1000_adapter *adapter = netdev_priv(netdev);
 667         struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
 668         int err = 0, size = sizeof(struct e1000_ring);
 669         bool set_tx = false, set_rx = false;
 670         u16 new_rx_count, new_tx_count;
 671 
 672         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 673                 return -EINVAL;
 674 
 675         new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
 676                                E1000_MAX_RXD);
 677         new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 678 
 679         new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
 680                                E1000_MAX_TXD);
 681         new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 682 
 683         if ((new_tx_count == adapter->tx_ring_count) &&
 684             (new_rx_count == adapter->rx_ring_count))
 685                 /* nothing to do */
 686                 return 0;
 687 
 688         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 689                 usleep_range(1000, 2000);
 690 
 691         if (!netif_running(adapter->netdev)) {
 692                 /* Set counts now and allocate resources during open() */
 693                 adapter->tx_ring->count = new_tx_count;
 694                 adapter->rx_ring->count = new_rx_count;
 695                 adapter->tx_ring_count = new_tx_count;
 696                 adapter->rx_ring_count = new_rx_count;
 697                 goto clear_reset;
 698         }
 699 
 700         set_tx = (new_tx_count != adapter->tx_ring_count);
 701         set_rx = (new_rx_count != adapter->rx_ring_count);
 702 
 703         /* Allocate temporary storage for ring updates */
 704         if (set_tx) {
 705                 temp_tx = vmalloc(size);
 706                 if (!temp_tx) {
 707                         err = -ENOMEM;
 708                         goto free_temp;
 709                 }
 710         }
 711         if (set_rx) {
 712                 temp_rx = vmalloc(size);
 713                 if (!temp_rx) {
 714                         err = -ENOMEM;
 715                         goto free_temp;
 716                 }
 717         }
 718 
 719         pm_runtime_get_sync(netdev->dev.parent);
 720 
 721         e1000e_down(adapter, true);
 722 
 723         /* We can't just free everything and then setup again, because the
 724          * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring
 725          * structs.  First, attempt to allocate new resources...
 726          */
 727         if (set_tx) {
 728                 memcpy(temp_tx, adapter->tx_ring, size);
 729                 temp_tx->count = new_tx_count;
 730                 err = e1000e_setup_tx_resources(temp_tx);
 731                 if (err)
 732                         goto err_setup;
 733         }
 734         if (set_rx) {
 735                 memcpy(temp_rx, adapter->rx_ring, size);
 736                 temp_rx->count = new_rx_count;
 737                 err = e1000e_setup_rx_resources(temp_rx);
 738                 if (err)
 739                         goto err_setup_rx;
 740         }
 741 
 742         /* ...then free the old resources and copy back any new ring data */
 743         if (set_tx) {
 744                 e1000e_free_tx_resources(adapter->tx_ring);
 745                 memcpy(adapter->tx_ring, temp_tx, size);
 746                 adapter->tx_ring_count = new_tx_count;
 747         }
 748         if (set_rx) {
 749                 e1000e_free_rx_resources(adapter->rx_ring);
 750                 memcpy(adapter->rx_ring, temp_rx, size);
 751                 adapter->rx_ring_count = new_rx_count;
 752         }
 753 
 754 err_setup_rx:
 755         if (err && set_tx)
 756                 e1000e_free_tx_resources(temp_tx);
 757 err_setup:
 758         e1000e_up(adapter);
 759         pm_runtime_put_sync(netdev->dev.parent);
 760 free_temp:
 761         vfree(temp_tx);
 762         vfree(temp_rx);
 763 clear_reset:
 764         clear_bit(__E1000_RESETTING, &adapter->state);
 765         return err;
 766 }
 767 
 768 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 769                              int reg, int offset, u32 mask, u32 write)
 770 {
 771         u32 pat, val;
 772         static const u32 test[] = {
 773                 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 774         };
 775         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 776                 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 777                                       (test[pat] & write));
 778                 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 779                 if (val != (test[pat] & write & mask)) {
 780                         e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
 781                               reg + (offset << 2), val,
 782                               (test[pat] & write & mask));
 783                         *data = reg;
 784                         return true;
 785                 }
 786         }
 787         return false;
 788 }
 789 
 790 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 791                               int reg, u32 mask, u32 write)
 792 {
 793         u32 val;
 794 
 795         __ew32(&adapter->hw, reg, write & mask);
 796         val = __er32(&adapter->hw, reg);
 797         if ((write & mask) != (val & mask)) {
 798                 e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n",
 799                       reg, (val & mask), (write & mask));
 800                 *data = reg;
 801                 return true;
 802         }
 803         return false;
 804 }
 805 
 806 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 807         do {                                                                   \
 808                 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 809                         return 1;                                              \
 810         } while (0)
 811 #define REG_PATTERN_TEST(reg, mask, write)                                     \
 812         REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 813 
 814 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
 815         do {                                                                   \
 816                 if (reg_set_and_check(adapter, data, reg, mask, write))        \
 817                         return 1;                                              \
 818         } while (0)
 819 
 820 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 821 {
 822         struct e1000_hw *hw = &adapter->hw;
 823         struct e1000_mac_info *mac = &adapter->hw.mac;
 824         u32 value;
 825         u32 before;
 826         u32 after;
 827         u32 i;
 828         u32 toggle;
 829         u32 mask;
 830         u32 wlock_mac = 0;
 831 
 832         /* The status register is Read Only, so a write should fail.
 833          * Some bits that get toggled are ignored.  There are several bits
 834          * on newer hardware that are r/w.
 835          */
 836         switch (mac->type) {
 837         case e1000_82571:
 838         case e1000_82572:
 839         case e1000_80003es2lan:
 840                 toggle = 0x7FFFF3FF;
 841                 break;
 842         default:
 843                 toggle = 0x7FFFF033;
 844                 break;
 845         }
 846 
 847         before = er32(STATUS);
 848         value = (er32(STATUS) & toggle);
 849         ew32(STATUS, toggle);
 850         after = er32(STATUS) & toggle;
 851         if (value != after) {
 852                 e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
 853                       after, value);
 854                 *data = 1;
 855                 return 1;
 856         }
 857         /* restore previous status */
 858         ew32(STATUS, before);
 859 
 860         if (!(adapter->flags & FLAG_IS_ICH)) {
 861                 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 862                 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 863                 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 864                 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 865         }
 866 
 867         REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 868         REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 869         REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
 870         REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
 871         REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
 872         REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 873         REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 874         REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 875         REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 876         REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
 877 
 878         REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 879 
 880         before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 881         REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 882         REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 883 
 884         REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 885         REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 886         if (!(adapter->flags & FLAG_IS_ICH))
 887                 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 888         REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 889         REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 890         mask = 0x8003FFFF;
 891         switch (mac->type) {
 892         case e1000_ich10lan:
 893         case e1000_pchlan:
 894         case e1000_pch2lan:
 895         case e1000_pch_lpt:
 896         case e1000_pch_spt:
 897                 /* fall through */
 898         case e1000_pch_cnp:
 899                 mask |= BIT(18);
 900                 break;
 901         default:
 902                 break;
 903         }
 904 
 905         if (mac->type >= e1000_pch_lpt)
 906                 wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
 907                     E1000_FWSM_WLOCK_MAC_SHIFT;
 908 
 909         for (i = 0; i < mac->rar_entry_count; i++) {
 910                 if (mac->type >= e1000_pch_lpt) {
 911                         /* Cannot test write-protected SHRAL[n] registers */
 912                         if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
 913                                 continue;
 914 
 915                         /* SHRAH[9] different than the others */
 916                         if (i == 10)
 917                                 mask |= BIT(30);
 918                         else
 919                                 mask &= ~BIT(30);
 920                 }
 921                 if (mac->type == e1000_pch2lan) {
 922                         /* SHRAH[0,1,2] different than previous */
 923                         if (i == 1)
 924                                 mask &= 0xFFF4FFFF;
 925                         /* SHRAH[3] different than SHRAH[0,1,2] */
 926                         if (i == 4)
 927                                 mask |= BIT(30);
 928                         /* RAR[1-6] owned by management engine - skipping */
 929                         if (i > 0)
 930                                 i += 6;
 931                 }
 932 
 933                 REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask,
 934                                        0xFFFFFFFF);
 935                 /* reset index to actual value */
 936                 if ((mac->type == e1000_pch2lan) && (i > 6))
 937                         i -= 6;
 938         }
 939 
 940         for (i = 0; i < mac->mta_reg_count; i++)
 941                 REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 942 
 943         *data = 0;
 944 
 945         return 0;
 946 }
 947 
 948 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 949 {
 950         u16 temp;
 951         u16 checksum = 0;
 952         u16 i;
 953 
 954         *data = 0;
 955         /* Read and add up the contents of the EEPROM */
 956         for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 957                 if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 958                         *data = 1;
 959                         return *data;
 960                 }
 961                 checksum += temp;
 962         }
 963 
 964         /* If Checksum is not Correct return error else test passed */
 965         if ((checksum != (u16)NVM_SUM) && !(*data))
 966                 *data = 2;
 967 
 968         return *data;
 969 }
 970 
 971 static irqreturn_t e1000_test_intr(int __always_unused irq, void *data)
 972 {
 973         struct net_device *netdev = (struct net_device *)data;
 974         struct e1000_adapter *adapter = netdev_priv(netdev);
 975         struct e1000_hw *hw = &adapter->hw;
 976 
 977         adapter->test_icr |= er32(ICR);
 978 
 979         return IRQ_HANDLED;
 980 }
 981 
 982 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 983 {
 984         struct net_device *netdev = adapter->netdev;
 985         struct e1000_hw *hw = &adapter->hw;
 986         u32 mask;
 987         u32 shared_int = 1;
 988         u32 irq = adapter->pdev->irq;
 989         int i;
 990         int ret_val = 0;
 991         int int_mode = E1000E_INT_MODE_LEGACY;
 992 
 993         *data = 0;
 994 
 995         /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
 996         if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
 997                 int_mode = adapter->int_mode;
 998                 e1000e_reset_interrupt_capability(adapter);
 999                 adapter->int_mode = E1000E_INT_MODE_LEGACY;
1000                 e1000e_set_interrupt_capability(adapter);
1001         }
1002         /* Hook up test interrupt handler just for this test */
1003         if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
1004                          netdev)) {
1005                 shared_int = 0;
1006         } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name,
1007                                netdev)) {
1008                 *data = 1;
1009                 ret_val = -1;
1010                 goto out;
1011         }
1012         e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
1013 
1014         /* Disable all the interrupts */
1015         ew32(IMC, 0xFFFFFFFF);
1016         e1e_flush();
1017         usleep_range(10000, 11000);
1018 
1019         /* Test each interrupt */
1020         for (i = 0; i < 10; i++) {
1021                 /* Interrupt to test */
1022                 mask = BIT(i);
1023 
1024                 if (adapter->flags & FLAG_IS_ICH) {
1025                         switch (mask) {
1026                         case E1000_ICR_RXSEQ:
1027                                 continue;
1028                         case 0x00000100:
1029                                 if (adapter->hw.mac.type == e1000_ich8lan ||
1030                                     adapter->hw.mac.type == e1000_ich9lan)
1031                                         continue;
1032                                 break;
1033                         default:
1034                                 break;
1035                         }
1036                 }
1037 
1038                 if (!shared_int) {
1039                         /* Disable the interrupt to be reported in
1040                          * the cause register and then force the same
1041                          * interrupt and see if one gets posted.  If
1042                          * an interrupt was posted to the bus, the
1043                          * test failed.
1044                          */
1045                         adapter->test_icr = 0;
1046                         ew32(IMC, mask);
1047                         ew32(ICS, mask);
1048                         e1e_flush();
1049                         usleep_range(10000, 11000);
1050 
1051                         if (adapter->test_icr & mask) {
1052                                 *data = 3;
1053                                 break;
1054                         }
1055                 }
1056 
1057                 /* Enable the interrupt to be reported in
1058                  * the cause register and then force the same
1059                  * interrupt and see if one gets posted.  If
1060                  * an interrupt was not posted to the bus, the
1061                  * test failed.
1062                  */
1063                 adapter->test_icr = 0;
1064                 ew32(IMS, mask);
1065                 ew32(ICS, mask);
1066                 e1e_flush();
1067                 usleep_range(10000, 11000);
1068 
1069                 if (!(adapter->test_icr & mask)) {
1070                         *data = 4;
1071                         break;
1072                 }
1073 
1074                 if (!shared_int) {
1075                         /* Disable the other interrupts to be reported in
1076                          * the cause register and then force the other
1077                          * interrupts and see if any get posted.  If
1078                          * an interrupt was posted to the bus, the
1079                          * test failed.
1080                          */
1081                         adapter->test_icr = 0;
1082                         ew32(IMC, ~mask & 0x00007FFF);
1083                         ew32(ICS, ~mask & 0x00007FFF);
1084                         e1e_flush();
1085                         usleep_range(10000, 11000);
1086 
1087                         if (adapter->test_icr) {
1088                                 *data = 5;
1089                                 break;
1090                         }
1091                 }
1092         }
1093 
1094         /* Disable all the interrupts */
1095         ew32(IMC, 0xFFFFFFFF);
1096         e1e_flush();
1097         usleep_range(10000, 11000);
1098 
1099         /* Unhook test interrupt handler */
1100         free_irq(irq, netdev);
1101 
1102 out:
1103         if (int_mode == E1000E_INT_MODE_MSIX) {
1104                 e1000e_reset_interrupt_capability(adapter);
1105                 adapter->int_mode = int_mode;
1106                 e1000e_set_interrupt_capability(adapter);
1107         }
1108 
1109         return ret_val;
1110 }
1111 
1112 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1113 {
1114         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1115         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1116         struct pci_dev *pdev = adapter->pdev;
1117         struct e1000_buffer *buffer_info;
1118         int i;
1119 
1120         if (tx_ring->desc && tx_ring->buffer_info) {
1121                 for (i = 0; i < tx_ring->count; i++) {
1122                         buffer_info = &tx_ring->buffer_info[i];
1123 
1124                         if (buffer_info->dma)
1125                                 dma_unmap_single(&pdev->dev,
1126                                                  buffer_info->dma,
1127                                                  buffer_info->length,
1128                                                  DMA_TO_DEVICE);
1129                         dev_kfree_skb(buffer_info->skb);
1130                 }
1131         }
1132 
1133         if (rx_ring->desc && rx_ring->buffer_info) {
1134                 for (i = 0; i < rx_ring->count; i++) {
1135                         buffer_info = &rx_ring->buffer_info[i];
1136 
1137                         if (buffer_info->dma)
1138                                 dma_unmap_single(&pdev->dev,
1139                                                  buffer_info->dma,
1140                                                  2048, DMA_FROM_DEVICE);
1141                         dev_kfree_skb(buffer_info->skb);
1142                 }
1143         }
1144 
1145         if (tx_ring->desc) {
1146                 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1147                                   tx_ring->dma);
1148                 tx_ring->desc = NULL;
1149         }
1150         if (rx_ring->desc) {
1151                 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1152                                   rx_ring->dma);
1153                 rx_ring->desc = NULL;
1154         }
1155 
1156         kfree(tx_ring->buffer_info);
1157         tx_ring->buffer_info = NULL;
1158         kfree(rx_ring->buffer_info);
1159         rx_ring->buffer_info = NULL;
1160 }
1161 
1162 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1163 {
1164         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1165         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1166         struct pci_dev *pdev = adapter->pdev;
1167         struct e1000_hw *hw = &adapter->hw;
1168         u32 rctl;
1169         int i;
1170         int ret_val;
1171 
1172         /* Setup Tx descriptor ring and Tx buffers */
1173 
1174         if (!tx_ring->count)
1175                 tx_ring->count = E1000_DEFAULT_TXD;
1176 
1177         tx_ring->buffer_info = kcalloc(tx_ring->count,
1178                                        sizeof(struct e1000_buffer), GFP_KERNEL);
1179         if (!tx_ring->buffer_info) {
1180                 ret_val = 1;
1181                 goto err_nomem;
1182         }
1183 
1184         tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1185         tx_ring->size = ALIGN(tx_ring->size, 4096);
1186         tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1187                                            &tx_ring->dma, GFP_KERNEL);
1188         if (!tx_ring->desc) {
1189                 ret_val = 2;
1190                 goto err_nomem;
1191         }
1192         tx_ring->next_to_use = 0;
1193         tx_ring->next_to_clean = 0;
1194 
1195         ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF));
1196         ew32(TDBAH(0), ((u64)tx_ring->dma >> 32));
1197         ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
1198         ew32(TDH(0), 0);
1199         ew32(TDT(0), 0);
1200         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1201              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1202              E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1203 
1204         for (i = 0; i < tx_ring->count; i++) {
1205                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1206                 struct sk_buff *skb;
1207                 unsigned int skb_size = 1024;
1208 
1209                 skb = alloc_skb(skb_size, GFP_KERNEL);
1210                 if (!skb) {
1211                         ret_val = 3;
1212                         goto err_nomem;
1213                 }
1214                 skb_put(skb, skb_size);
1215                 tx_ring->buffer_info[i].skb = skb;
1216                 tx_ring->buffer_info[i].length = skb->len;
1217                 tx_ring->buffer_info[i].dma =
1218                     dma_map_single(&pdev->dev, skb->data, skb->len,
1219                                    DMA_TO_DEVICE);
1220                 if (dma_mapping_error(&pdev->dev,
1221                                       tx_ring->buffer_info[i].dma)) {
1222                         ret_val = 4;
1223                         goto err_nomem;
1224                 }
1225                 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1226                 tx_desc->lower.data = cpu_to_le32(skb->len);
1227                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1228                                                    E1000_TXD_CMD_IFCS |
1229                                                    E1000_TXD_CMD_RS);
1230                 tx_desc->upper.data = 0;
1231         }
1232 
1233         /* Setup Rx descriptor ring and Rx buffers */
1234 
1235         if (!rx_ring->count)
1236                 rx_ring->count = E1000_DEFAULT_RXD;
1237 
1238         rx_ring->buffer_info = kcalloc(rx_ring->count,
1239                                        sizeof(struct e1000_buffer), GFP_KERNEL);
1240         if (!rx_ring->buffer_info) {
1241                 ret_val = 5;
1242                 goto err_nomem;
1243         }
1244 
1245         rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
1246         rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1247                                            &rx_ring->dma, GFP_KERNEL);
1248         if (!rx_ring->desc) {
1249                 ret_val = 6;
1250                 goto err_nomem;
1251         }
1252         rx_ring->next_to_use = 0;
1253         rx_ring->next_to_clean = 0;
1254 
1255         rctl = er32(RCTL);
1256         if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1257                 ew32(RCTL, rctl & ~E1000_RCTL_EN);
1258         ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF));
1259         ew32(RDBAH(0), ((u64)rx_ring->dma >> 32));
1260         ew32(RDLEN(0), rx_ring->size);
1261         ew32(RDH(0), 0);
1262         ew32(RDT(0), 0);
1263         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1264             E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1265             E1000_RCTL_SBP | E1000_RCTL_SECRC |
1266             E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1267             (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1268         ew32(RCTL, rctl);
1269 
1270         for (i = 0; i < rx_ring->count; i++) {
1271                 union e1000_rx_desc_extended *rx_desc;
1272                 struct sk_buff *skb;
1273 
1274                 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1275                 if (!skb) {
1276                         ret_val = 7;
1277                         goto err_nomem;
1278                 }
1279                 skb_reserve(skb, NET_IP_ALIGN);
1280                 rx_ring->buffer_info[i].skb = skb;
1281                 rx_ring->buffer_info[i].dma =
1282                     dma_map_single(&pdev->dev, skb->data, 2048,
1283                                    DMA_FROM_DEVICE);
1284                 if (dma_mapping_error(&pdev->dev,
1285                                       rx_ring->buffer_info[i].dma)) {
1286                         ret_val = 8;
1287                         goto err_nomem;
1288                 }
1289                 rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
1290                 rx_desc->read.buffer_addr =
1291                     cpu_to_le64(rx_ring->buffer_info[i].dma);
1292                 memset(skb->data, 0x00, skb->len);
1293         }
1294 
1295         return 0;
1296 
1297 err_nomem:
1298         e1000_free_desc_rings(adapter);
1299         return ret_val;
1300 }
1301 
1302 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1303 {
1304         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1305         e1e_wphy(&adapter->hw, 29, 0x001F);
1306         e1e_wphy(&adapter->hw, 30, 0x8FFC);
1307         e1e_wphy(&adapter->hw, 29, 0x001A);
1308         e1e_wphy(&adapter->hw, 30, 0x8FF0);
1309 }
1310 
1311 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1312 {
1313         struct e1000_hw *hw = &adapter->hw;
1314         u32 ctrl_reg = 0;
1315         u16 phy_reg = 0;
1316         s32 ret_val = 0;
1317 
1318         hw->mac.autoneg = 0;
1319 
1320         if (hw->phy.type == e1000_phy_ife) {
1321                 /* force 100, set loopback */
1322                 e1e_wphy(hw, MII_BMCR, 0x6100);
1323 
1324                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1325                 ctrl_reg = er32(CTRL);
1326                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1327                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1328                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1329                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1330                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1331 
1332                 ew32(CTRL, ctrl_reg);
1333                 e1e_flush();
1334                 usleep_range(500, 1000);
1335 
1336                 return 0;
1337         }
1338 
1339         /* Specific PHY configuration for loopback */
1340         switch (hw->phy.type) {
1341         case e1000_phy_m88:
1342                 /* Auto-MDI/MDIX Off */
1343                 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1344                 /* reset to update Auto-MDI/MDIX */
1345                 e1e_wphy(hw, MII_BMCR, 0x9140);
1346                 /* autoneg off */
1347                 e1e_wphy(hw, MII_BMCR, 0x8140);
1348                 break;
1349         case e1000_phy_gg82563:
1350                 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1351                 break;
1352         case e1000_phy_bm:
1353                 /* Set Default MAC Interface speed to 1GB */
1354                 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1355                 phy_reg &= ~0x0007;
1356                 phy_reg |= 0x006;
1357                 e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1358                 /* Assert SW reset for above settings to take effect */
1359                 hw->phy.ops.commit(hw);
1360                 usleep_range(1000, 2000);
1361                 /* Force Full Duplex */
1362                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1363                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1364                 /* Set Link Up (in force link) */
1365                 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1366                 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1367                 /* Force Link */
1368                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1369                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1370                 /* Set Early Link Enable */
1371                 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1372                 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1373                 break;
1374         case e1000_phy_82577:
1375         case e1000_phy_82578:
1376                 /* Workaround: K1 must be disabled for stable 1Gbps operation */
1377                 ret_val = hw->phy.ops.acquire(hw);
1378                 if (ret_val) {
1379                         e_err("Cannot setup 1Gbps loopback.\n");
1380                         return ret_val;
1381                 }
1382                 e1000_configure_k1_ich8lan(hw, false);
1383                 hw->phy.ops.release(hw);
1384                 break;
1385         case e1000_phy_82579:
1386                 /* Disable PHY energy detect power down */
1387                 e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1388                 e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~BIT(3));
1389                 /* Disable full chip energy detect */
1390                 e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1391                 e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1392                 /* Enable loopback on the PHY */
1393                 e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1394                 break;
1395         default:
1396                 break;
1397         }
1398 
1399         /* force 1000, set loopback */
1400         e1e_wphy(hw, MII_BMCR, 0x4140);
1401         msleep(250);
1402 
1403         /* Now set up the MAC to the same speed/duplex as the PHY. */
1404         ctrl_reg = er32(CTRL);
1405         ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1406         ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1407                      E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1408                      E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1409                      E1000_CTRL_FD);     /* Force Duplex to FULL */
1410 
1411         if (adapter->flags & FLAG_IS_ICH)
1412                 ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1413 
1414         if (hw->phy.media_type == e1000_media_type_copper &&
1415             hw->phy.type == e1000_phy_m88) {
1416                 ctrl_reg |= E1000_CTRL_ILOS;    /* Invert Loss of Signal */
1417         } else {
1418                 /* Set the ILOS bit on the fiber Nic if half duplex link is
1419                  * detected.
1420                  */
1421                 if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1422                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1423         }
1424 
1425         ew32(CTRL, ctrl_reg);
1426 
1427         /* Disable the receiver on the PHY so when a cable is plugged in, the
1428          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1429          */
1430         if (hw->phy.type == e1000_phy_m88)
1431                 e1000_phy_disable_receiver(adapter);
1432 
1433         usleep_range(500, 1000);
1434 
1435         return 0;
1436 }
1437 
1438 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1439 {
1440         struct e1000_hw *hw = &adapter->hw;
1441         u32 ctrl = er32(CTRL);
1442         int link;
1443 
1444         /* special requirements for 82571/82572 fiber adapters */
1445 
1446         /* jump through hoops to make sure link is up because serdes
1447          * link is hardwired up
1448          */
1449         ctrl |= E1000_CTRL_SLU;
1450         ew32(CTRL, ctrl);
1451 
1452         /* disable autoneg */
1453         ctrl = er32(TXCW);
1454         ctrl &= ~BIT(31);
1455         ew32(TXCW, ctrl);
1456 
1457         link = (er32(STATUS) & E1000_STATUS_LU);
1458 
1459         if (!link) {
1460                 /* set invert loss of signal */
1461                 ctrl = er32(CTRL);
1462                 ctrl |= E1000_CTRL_ILOS;
1463                 ew32(CTRL, ctrl);
1464         }
1465 
1466         /* special write to serdes control register to enable SerDes analog
1467          * loopback
1468          */
1469         ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
1470         e1e_flush();
1471         usleep_range(10000, 11000);
1472 
1473         return 0;
1474 }
1475 
1476 /* only call this for fiber/serdes connections to es2lan */
1477 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1478 {
1479         struct e1000_hw *hw = &adapter->hw;
1480         u32 ctrlext = er32(CTRL_EXT);
1481         u32 ctrl = er32(CTRL);
1482 
1483         /* save CTRL_EXT to restore later, reuse an empty variable (unused
1484          * on mac_type 80003es2lan)
1485          */
1486         adapter->tx_fifo_head = ctrlext;
1487 
1488         /* clear the serdes mode bits, putting the device into mac loopback */
1489         ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1490         ew32(CTRL_EXT, ctrlext);
1491 
1492         /* force speed to 1000/FD, link up */
1493         ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1494         ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1495                  E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1496         ew32(CTRL, ctrl);
1497 
1498         /* set mac loopback */
1499         ctrl = er32(RCTL);
1500         ctrl |= E1000_RCTL_LBM_MAC;
1501         ew32(RCTL, ctrl);
1502 
1503         /* set testing mode parameters (no need to reset later) */
1504 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1505 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1506         ew32(KMRNCTRLSTA,
1507              (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1508 
1509         return 0;
1510 }
1511 
1512 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1513 {
1514         struct e1000_hw *hw = &adapter->hw;
1515         u32 rctl, fext_nvm11, tarc0;
1516 
1517         if (hw->mac.type >= e1000_pch_spt) {
1518                 fext_nvm11 = er32(FEXTNVM11);
1519                 fext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX;
1520                 ew32(FEXTNVM11, fext_nvm11);
1521                 tarc0 = er32(TARC(0));
1522                 /* clear bits 28 & 29 (control of MULR concurrent requests) */
1523                 tarc0 &= 0xcfffffff;
1524                 /* set bit 29 (value of MULR requests is now 2) */
1525                 tarc0 |= 0x20000000;
1526                 ew32(TARC(0), tarc0);
1527         }
1528         if (hw->phy.media_type == e1000_media_type_fiber ||
1529             hw->phy.media_type == e1000_media_type_internal_serdes) {
1530                 switch (hw->mac.type) {
1531                 case e1000_80003es2lan:
1532                         return e1000_set_es2lan_mac_loopback(adapter);
1533                 case e1000_82571:
1534                 case e1000_82572:
1535                         return e1000_set_82571_fiber_loopback(adapter);
1536                 default:
1537                         rctl = er32(RCTL);
1538                         rctl |= E1000_RCTL_LBM_TCVR;
1539                         ew32(RCTL, rctl);
1540                         return 0;
1541                 }
1542         } else if (hw->phy.media_type == e1000_media_type_copper) {
1543                 return e1000_integrated_phy_loopback(adapter);
1544         }
1545 
1546         return 7;
1547 }
1548 
1549 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1550 {
1551         struct e1000_hw *hw = &adapter->hw;
1552         u32 rctl, fext_nvm11, tarc0;
1553         u16 phy_reg;
1554 
1555         rctl = er32(RCTL);
1556         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1557         ew32(RCTL, rctl);
1558 
1559         switch (hw->mac.type) {
1560         case e1000_pch_spt:
1561         case e1000_pch_cnp:
1562                 fext_nvm11 = er32(FEXTNVM11);
1563                 fext_nvm11 &= ~E1000_FEXTNVM11_DISABLE_MULR_FIX;
1564                 ew32(FEXTNVM11, fext_nvm11);
1565                 tarc0 = er32(TARC(0));
1566                 /* clear bits 28 & 29 (control of MULR concurrent requests) */
1567                 /* set bit 29 (value of MULR requests is now 0) */
1568                 tarc0 &= 0xcfffffff;
1569                 ew32(TARC(0), tarc0);
1570                 /* fall through */
1571         case e1000_80003es2lan:
1572                 if (hw->phy.media_type == e1000_media_type_fiber ||
1573                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1574                         /* restore CTRL_EXT, stealing space from tx_fifo_head */
1575                         ew32(CTRL_EXT, adapter->tx_fifo_head);
1576                         adapter->tx_fifo_head = 0;
1577                 }
1578                 /* fall through */
1579         case e1000_82571:
1580         case e1000_82572:
1581                 if (hw->phy.media_type == e1000_media_type_fiber ||
1582                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1583                         ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
1584                         e1e_flush();
1585                         usleep_range(10000, 11000);
1586                         break;
1587                 }
1588                 /* Fall Through */
1589         default:
1590                 hw->mac.autoneg = 1;
1591                 if (hw->phy.type == e1000_phy_gg82563)
1592                         e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1593                 e1e_rphy(hw, MII_BMCR, &phy_reg);
1594                 if (phy_reg & BMCR_LOOPBACK) {
1595                         phy_reg &= ~BMCR_LOOPBACK;
1596                         e1e_wphy(hw, MII_BMCR, phy_reg);
1597                         if (hw->phy.ops.commit)
1598                                 hw->phy.ops.commit(hw);
1599                 }
1600                 break;
1601         }
1602 }
1603 
1604 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1605                                       unsigned int frame_size)
1606 {
1607         memset(skb->data, 0xFF, frame_size);
1608         frame_size &= ~1;
1609         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1610         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1611         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1612 }
1613 
1614 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1615                                     unsigned int frame_size)
1616 {
1617         frame_size &= ~1;
1618         if (*(skb->data + 3) == 0xFF)
1619                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1620                     (*(skb->data + frame_size / 2 + 12) == 0xAF))
1621                         return 0;
1622         return 13;
1623 }
1624 
1625 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1626 {
1627         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1628         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1629         struct pci_dev *pdev = adapter->pdev;
1630         struct e1000_hw *hw = &adapter->hw;
1631         struct e1000_buffer *buffer_info;
1632         int i, j, k, l;
1633         int lc;
1634         int good_cnt;
1635         int ret_val = 0;
1636         unsigned long time;
1637 
1638         ew32(RDT(0), rx_ring->count - 1);
1639 
1640         /* Calculate the loop count based on the largest descriptor ring
1641          * The idea is to wrap the largest ring a number of times using 64
1642          * send/receive pairs during each loop
1643          */
1644 
1645         if (rx_ring->count <= tx_ring->count)
1646                 lc = ((tx_ring->count / 64) * 2) + 1;
1647         else
1648                 lc = ((rx_ring->count / 64) * 2) + 1;
1649 
1650         k = 0;
1651         l = 0;
1652         /* loop count loop */
1653         for (j = 0; j <= lc; j++) {
1654                 /* send the packets */
1655                 for (i = 0; i < 64; i++) {
1656                         buffer_info = &tx_ring->buffer_info[k];
1657 
1658                         e1000_create_lbtest_frame(buffer_info->skb, 1024);
1659                         dma_sync_single_for_device(&pdev->dev,
1660                                                    buffer_info->dma,
1661                                                    buffer_info->length,
1662                                                    DMA_TO_DEVICE);
1663                         k++;
1664                         if (k == tx_ring->count)
1665                                 k = 0;
1666                 }
1667                 ew32(TDT(0), k);
1668                 e1e_flush();
1669                 msleep(200);
1670                 time = jiffies; /* set the start time for the receive */
1671                 good_cnt = 0;
1672                 /* receive the sent packets */
1673                 do {
1674                         buffer_info = &rx_ring->buffer_info[l];
1675 
1676                         dma_sync_single_for_cpu(&pdev->dev,
1677                                                 buffer_info->dma, 2048,
1678                                                 DMA_FROM_DEVICE);
1679 
1680                         ret_val = e1000_check_lbtest_frame(buffer_info->skb,
1681                                                            1024);
1682                         if (!ret_val)
1683                                 good_cnt++;
1684                         l++;
1685                         if (l == rx_ring->count)
1686                                 l = 0;
1687                         /* time + 20 msecs (200 msecs on 2.4) is more than
1688                          * enough time to complete the receives, if it's
1689                          * exceeded, break and error off
1690                          */
1691                 } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1692                 if (good_cnt != 64) {
1693                         ret_val = 13;   /* ret_val is the same as mis-compare */
1694                         break;
1695                 }
1696                 if (time_after(jiffies, time + 20)) {
1697                         ret_val = 14;   /* error code for time out error */
1698                         break;
1699                 }
1700         }
1701         return ret_val;
1702 }
1703 
1704 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1705 {
1706         struct e1000_hw *hw = &adapter->hw;
1707 
1708         /* PHY loopback cannot be performed if SoL/IDER sessions are active */
1709         if (hw->phy.ops.check_reset_block &&
1710             hw->phy.ops.check_reset_block(hw)) {
1711                 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1712                 *data = 0;
1713                 goto out;
1714         }
1715 
1716         *data = e1000_setup_desc_rings(adapter);
1717         if (*data)
1718                 goto out;
1719 
1720         *data = e1000_setup_loopback_test(adapter);
1721         if (*data)
1722                 goto err_loopback;
1723 
1724         *data = e1000_run_loopback_test(adapter);
1725         e1000_loopback_cleanup(adapter);
1726 
1727 err_loopback:
1728         e1000_free_desc_rings(adapter);
1729 out:
1730         return *data;
1731 }
1732 
1733 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1734 {
1735         struct e1000_hw *hw = &adapter->hw;
1736 
1737         *data = 0;
1738         if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1739                 int i = 0;
1740 
1741                 hw->mac.serdes_has_link = false;
1742 
1743                 /* On some blade server designs, link establishment
1744                  * could take as long as 2-3 minutes
1745                  */
1746                 do {
1747                         hw->mac.ops.check_for_link(hw);
1748                         if (hw->mac.serdes_has_link)
1749                                 return *data;
1750                         msleep(20);
1751                 } while (i++ < 3750);
1752 
1753                 *data = 1;
1754         } else {
1755                 hw->mac.ops.check_for_link(hw);
1756                 if (hw->mac.autoneg)
1757                         /* On some Phy/switch combinations, link establishment
1758                          * can take a few seconds more than expected.
1759                          */
1760                         msleep_interruptible(5000);
1761 
1762                 if (!(er32(STATUS) & E1000_STATUS_LU))
1763                         *data = 1;
1764         }
1765         return *data;
1766 }
1767 
1768 static int e1000e_get_sset_count(struct net_device __always_unused *netdev,
1769                                  int sset)
1770 {
1771         switch (sset) {
1772         case ETH_SS_TEST:
1773                 return E1000_TEST_LEN;
1774         case ETH_SS_STATS:
1775                 return E1000_STATS_LEN;
1776         default:
1777                 return -EOPNOTSUPP;
1778         }
1779 }
1780 
1781 static void e1000_diag_test(struct net_device *netdev,
1782                             struct ethtool_test *eth_test, u64 *data)
1783 {
1784         struct e1000_adapter *adapter = netdev_priv(netdev);
1785         u16 autoneg_advertised;
1786         u8 forced_speed_duplex;
1787         u8 autoneg;
1788         bool if_running = netif_running(netdev);
1789 
1790         pm_runtime_get_sync(netdev->dev.parent);
1791 
1792         set_bit(__E1000_TESTING, &adapter->state);
1793 
1794         if (!if_running) {
1795                 /* Get control of and reset hardware */
1796                 if (adapter->flags & FLAG_HAS_AMT)
1797                         e1000e_get_hw_control(adapter);
1798 
1799                 e1000e_power_up_phy(adapter);
1800 
1801                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1802                 e1000e_reset(adapter);
1803                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1804         }
1805 
1806         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1807                 /* Offline tests */
1808 
1809                 /* save speed, duplex, autoneg settings */
1810                 autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1811                 forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1812                 autoneg = adapter->hw.mac.autoneg;
1813 
1814                 e_info("offline testing starting\n");
1815 
1816                 if (if_running)
1817                         /* indicate we're in test mode */
1818                         e1000e_close(netdev);
1819 
1820                 if (e1000_reg_test(adapter, &data[0]))
1821                         eth_test->flags |= ETH_TEST_FL_FAILED;
1822 
1823                 e1000e_reset(adapter);
1824                 if (e1000_eeprom_test(adapter, &data[1]))
1825                         eth_test->flags |= ETH_TEST_FL_FAILED;
1826 
1827                 e1000e_reset(adapter);
1828                 if (e1000_intr_test(adapter, &data[2]))
1829                         eth_test->flags |= ETH_TEST_FL_FAILED;
1830 
1831                 e1000e_reset(adapter);
1832                 if (e1000_loopback_test(adapter, &data[3]))
1833                         eth_test->flags |= ETH_TEST_FL_FAILED;
1834 
1835                 /* force this routine to wait until autoneg complete/timeout */
1836                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1837                 e1000e_reset(adapter);
1838                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1839 
1840                 if (e1000_link_test(adapter, &data[4]))
1841                         eth_test->flags |= ETH_TEST_FL_FAILED;
1842 
1843                 /* restore speed, duplex, autoneg settings */
1844                 adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1845                 adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1846                 adapter->hw.mac.autoneg = autoneg;
1847                 e1000e_reset(adapter);
1848 
1849                 clear_bit(__E1000_TESTING, &adapter->state);
1850                 if (if_running)
1851                         e1000e_open(netdev);
1852         } else {
1853                 /* Online tests */
1854 
1855                 e_info("online testing starting\n");
1856 
1857                 /* register, eeprom, intr and loopback tests not run online */
1858                 data[0] = 0;
1859                 data[1] = 0;
1860                 data[2] = 0;
1861                 data[3] = 0;
1862 
1863                 if (e1000_link_test(adapter, &data[4]))
1864                         eth_test->flags |= ETH_TEST_FL_FAILED;
1865 
1866                 clear_bit(__E1000_TESTING, &adapter->state);
1867         }
1868 
1869         if (!if_running) {
1870                 e1000e_reset(adapter);
1871 
1872                 if (adapter->flags & FLAG_HAS_AMT)
1873                         e1000e_release_hw_control(adapter);
1874         }
1875 
1876         msleep_interruptible(4 * 1000);
1877 
1878         pm_runtime_put_sync(netdev->dev.parent);
1879 }
1880 
1881 static void e1000_get_wol(struct net_device *netdev,
1882                           struct ethtool_wolinfo *wol)
1883 {
1884         struct e1000_adapter *adapter = netdev_priv(netdev);
1885 
1886         wol->supported = 0;
1887         wol->wolopts = 0;
1888 
1889         if (!(adapter->flags & FLAG_HAS_WOL) ||
1890             !device_can_wakeup(&adapter->pdev->dev))
1891                 return;
1892 
1893         wol->supported = WAKE_UCAST | WAKE_MCAST |
1894             WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1895 
1896         /* apply any specific unsupported masks here */
1897         if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1898                 wol->supported &= ~WAKE_UCAST;
1899 
1900                 if (adapter->wol & E1000_WUFC_EX)
1901                         e_err("Interface does not support directed (unicast) frame wake-up packets\n");
1902         }
1903 
1904         if (adapter->wol & E1000_WUFC_EX)
1905                 wol->wolopts |= WAKE_UCAST;
1906         if (adapter->wol & E1000_WUFC_MC)
1907                 wol->wolopts |= WAKE_MCAST;
1908         if (adapter->wol & E1000_WUFC_BC)
1909                 wol->wolopts |= WAKE_BCAST;
1910         if (adapter->wol & E1000_WUFC_MAG)
1911                 wol->wolopts |= WAKE_MAGIC;
1912         if (adapter->wol & E1000_WUFC_LNKC)
1913                 wol->wolopts |= WAKE_PHY;
1914 }
1915 
1916 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1917 {
1918         struct e1000_adapter *adapter = netdev_priv(netdev);
1919 
1920         if (!(adapter->flags & FLAG_HAS_WOL) ||
1921             !device_can_wakeup(&adapter->pdev->dev) ||
1922             (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1923                               WAKE_MAGIC | WAKE_PHY)))
1924                 return -EOPNOTSUPP;
1925 
1926         /* these settings will always override what we currently have */
1927         adapter->wol = 0;
1928 
1929         if (wol->wolopts & WAKE_UCAST)
1930                 adapter->wol |= E1000_WUFC_EX;
1931         if (wol->wolopts & WAKE_MCAST)
1932                 adapter->wol |= E1000_WUFC_MC;
1933         if (wol->wolopts & WAKE_BCAST)
1934                 adapter->wol |= E1000_WUFC_BC;
1935         if (wol->wolopts & WAKE_MAGIC)
1936                 adapter->wol |= E1000_WUFC_MAG;
1937         if (wol->wolopts & WAKE_PHY)
1938                 adapter->wol |= E1000_WUFC_LNKC;
1939 
1940         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1941 
1942         return 0;
1943 }
1944 
1945 static int e1000_set_phys_id(struct net_device *netdev,
1946                              enum ethtool_phys_id_state state)
1947 {
1948         struct e1000_adapter *adapter = netdev_priv(netdev);
1949         struct e1000_hw *hw = &adapter->hw;
1950 
1951         switch (state) {
1952         case ETHTOOL_ID_ACTIVE:
1953                 pm_runtime_get_sync(netdev->dev.parent);
1954 
1955                 if (!hw->mac.ops.blink_led)
1956                         return 2;       /* cycle on/off twice per second */
1957 
1958                 hw->mac.ops.blink_led(hw);
1959                 break;
1960 
1961         case ETHTOOL_ID_INACTIVE:
1962                 if (hw->phy.type == e1000_phy_ife)
1963                         e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1964                 hw->mac.ops.led_off(hw);
1965                 hw->mac.ops.cleanup_led(hw);
1966                 pm_runtime_put_sync(netdev->dev.parent);
1967                 break;
1968 
1969         case ETHTOOL_ID_ON:
1970                 hw->mac.ops.led_on(hw);
1971                 break;
1972 
1973         case ETHTOOL_ID_OFF:
1974                 hw->mac.ops.led_off(hw);
1975                 break;
1976         }
1977 
1978         return 0;
1979 }
1980 
1981 static int e1000_get_coalesce(struct net_device *netdev,
1982                               struct ethtool_coalesce *ec)
1983 {
1984         struct e1000_adapter *adapter = netdev_priv(netdev);
1985 
1986         if (adapter->itr_setting <= 4)
1987                 ec->rx_coalesce_usecs = adapter->itr_setting;
1988         else
1989                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1990 
1991         return 0;
1992 }
1993 
1994 static int e1000_set_coalesce(struct net_device *netdev,
1995                               struct ethtool_coalesce *ec)
1996 {
1997         struct e1000_adapter *adapter = netdev_priv(netdev);
1998 
1999         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
2000             ((ec->rx_coalesce_usecs > 4) &&
2001              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
2002             (ec->rx_coalesce_usecs == 2))
2003                 return -EINVAL;
2004 
2005         if (ec->rx_coalesce_usecs == 4) {
2006                 adapter->itr_setting = 4;
2007                 adapter->itr = adapter->itr_setting;
2008         } else if (ec->rx_coalesce_usecs <= 3) {
2009                 adapter->itr = 20000;
2010                 adapter->itr_setting = ec->rx_coalesce_usecs;
2011         } else {
2012                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
2013                 adapter->itr_setting = adapter->itr & ~3;
2014         }
2015 
2016         pm_runtime_get_sync(netdev->dev.parent);
2017 
2018         if (adapter->itr_setting != 0)
2019                 e1000e_write_itr(adapter, adapter->itr);
2020         else
2021                 e1000e_write_itr(adapter, 0);
2022 
2023         pm_runtime_put_sync(netdev->dev.parent);
2024 
2025         return 0;
2026 }
2027 
2028 static int e1000_nway_reset(struct net_device *netdev)
2029 {
2030         struct e1000_adapter *adapter = netdev_priv(netdev);
2031 
2032         if (!netif_running(netdev))
2033                 return -EAGAIN;
2034 
2035         if (!adapter->hw.mac.autoneg)
2036                 return -EINVAL;
2037 
2038         pm_runtime_get_sync(netdev->dev.parent);
2039         e1000e_reinit_locked(adapter);
2040         pm_runtime_put_sync(netdev->dev.parent);
2041 
2042         return 0;
2043 }
2044 
2045 static void e1000_get_ethtool_stats(struct net_device *netdev,
2046                                     struct ethtool_stats __always_unused *stats,
2047                                     u64 *data)
2048 {
2049         struct e1000_adapter *adapter = netdev_priv(netdev);
2050         struct rtnl_link_stats64 net_stats;
2051         int i;
2052         char *p = NULL;
2053 
2054         pm_runtime_get_sync(netdev->dev.parent);
2055 
2056         dev_get_stats(netdev, &net_stats);
2057 
2058         pm_runtime_put_sync(netdev->dev.parent);
2059 
2060         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2061                 switch (e1000_gstrings_stats[i].type) {
2062                 case NETDEV_STATS:
2063                         p = (char *)&net_stats +
2064                             e1000_gstrings_stats[i].stat_offset;
2065                         break;
2066                 case E1000_STATS:
2067                         p = (char *)adapter +
2068                             e1000_gstrings_stats[i].stat_offset;
2069                         break;
2070                 default:
2071                         data[i] = 0;
2072                         continue;
2073                 }
2074 
2075                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
2076                            sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
2077         }
2078 }
2079 
2080 static void e1000_get_strings(struct net_device __always_unused *netdev,
2081                               u32 stringset, u8 *data)
2082 {
2083         u8 *p = data;
2084         int i;
2085 
2086         switch (stringset) {
2087         case ETH_SS_TEST:
2088                 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
2089                 break;
2090         case ETH_SS_STATS:
2091                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2092                         memcpy(p, e1000_gstrings_stats[i].stat_string,
2093                                ETH_GSTRING_LEN);
2094                         p += ETH_GSTRING_LEN;
2095                 }
2096                 break;
2097         }
2098 }
2099 
2100 static int e1000_get_rxnfc(struct net_device *netdev,
2101                            struct ethtool_rxnfc *info,
2102                            u32 __always_unused *rule_locs)
2103 {
2104         info->data = 0;
2105 
2106         switch (info->cmd) {
2107         case ETHTOOL_GRXFH: {
2108                 struct e1000_adapter *adapter = netdev_priv(netdev);
2109                 struct e1000_hw *hw = &adapter->hw;
2110                 u32 mrqc;
2111 
2112                 pm_runtime_get_sync(netdev->dev.parent);
2113                 mrqc = er32(MRQC);
2114                 pm_runtime_put_sync(netdev->dev.parent);
2115 
2116                 if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
2117                         return 0;
2118 
2119                 switch (info->flow_type) {
2120                 case TCP_V4_FLOW:
2121                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
2122                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2123                         /* fall through */
2124                 case UDP_V4_FLOW:
2125                 case SCTP_V4_FLOW:
2126                 case AH_ESP_V4_FLOW:
2127                 case IPV4_FLOW:
2128                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
2129                                 info->data |= RXH_IP_SRC | RXH_IP_DST;
2130                         break;
2131                 case TCP_V6_FLOW:
2132                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
2133                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2134                         /* fall through */
2135                 case UDP_V6_FLOW:
2136                 case SCTP_V6_FLOW:
2137                 case AH_ESP_V6_FLOW:
2138                 case IPV6_FLOW:
2139                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
2140                                 info->data |= RXH_IP_SRC | RXH_IP_DST;
2141                         break;
2142                 default:
2143                         break;
2144                 }
2145                 return 0;
2146         }
2147         default:
2148                 return -EOPNOTSUPP;
2149         }
2150 }
2151 
2152 static int e1000e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
2153 {
2154         struct e1000_adapter *adapter = netdev_priv(netdev);
2155         struct e1000_hw *hw = &adapter->hw;
2156         u16 cap_addr, lpa_addr, pcs_stat_addr, phy_data;
2157         u32 ret_val;
2158 
2159         if (!(adapter->flags2 & FLAG2_HAS_EEE))
2160                 return -EOPNOTSUPP;
2161 
2162         switch (hw->phy.type) {
2163         case e1000_phy_82579:
2164                 cap_addr = I82579_EEE_CAPABILITY;
2165                 lpa_addr = I82579_EEE_LP_ABILITY;
2166                 pcs_stat_addr = I82579_EEE_PCS_STATUS;
2167                 break;
2168         case e1000_phy_i217:
2169                 cap_addr = I217_EEE_CAPABILITY;
2170                 lpa_addr = I217_EEE_LP_ABILITY;
2171                 pcs_stat_addr = I217_EEE_PCS_STATUS;
2172                 break;
2173         default:
2174                 return -EOPNOTSUPP;
2175         }
2176 
2177         pm_runtime_get_sync(netdev->dev.parent);
2178 
2179         ret_val = hw->phy.ops.acquire(hw);
2180         if (ret_val) {
2181                 pm_runtime_put_sync(netdev->dev.parent);
2182                 return -EBUSY;
2183         }
2184 
2185         /* EEE Capability */
2186         ret_val = e1000_read_emi_reg_locked(hw, cap_addr, &phy_data);
2187         if (ret_val)
2188                 goto release;
2189         edata->supported = mmd_eee_cap_to_ethtool_sup_t(phy_data);
2190 
2191         /* EEE Advertised */
2192         edata->advertised = mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
2193 
2194         /* EEE Link Partner Advertised */
2195         ret_val = e1000_read_emi_reg_locked(hw, lpa_addr, &phy_data);
2196         if (ret_val)
2197                 goto release;
2198         edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
2199 
2200         /* EEE PCS Status */
2201         ret_val = e1000_read_emi_reg_locked(hw, pcs_stat_addr, &phy_data);
2202         if (ret_val)
2203                 goto release;
2204         if (hw->phy.type == e1000_phy_82579)
2205                 phy_data <<= 8;
2206 
2207         /* Result of the EEE auto negotiation - there is no register that
2208          * has the status of the EEE negotiation so do a best-guess based
2209          * on whether Tx or Rx LPI indications have been received.
2210          */
2211         if (phy_data & (E1000_EEE_TX_LPI_RCVD | E1000_EEE_RX_LPI_RCVD))
2212                 edata->eee_active = true;
2213 
2214         edata->eee_enabled = !hw->dev_spec.ich8lan.eee_disable;
2215         edata->tx_lpi_enabled = true;
2216         edata->tx_lpi_timer = er32(LPIC) >> E1000_LPIC_LPIET_SHIFT;
2217 
2218 release:
2219         hw->phy.ops.release(hw);
2220         if (ret_val)
2221                 ret_val = -ENODATA;
2222 
2223         pm_runtime_put_sync(netdev->dev.parent);
2224 
2225         return ret_val;
2226 }
2227 
2228 static int e1000e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
2229 {
2230         struct e1000_adapter *adapter = netdev_priv(netdev);
2231         struct e1000_hw *hw = &adapter->hw;
2232         struct ethtool_eee eee_curr;
2233         s32 ret_val;
2234 
2235         ret_val = e1000e_get_eee(netdev, &eee_curr);
2236         if (ret_val)
2237                 return ret_val;
2238 
2239         if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
2240                 e_err("Setting EEE tx-lpi is not supported\n");
2241                 return -EINVAL;
2242         }
2243 
2244         if (eee_curr.tx_lpi_timer != edata->tx_lpi_timer) {
2245                 e_err("Setting EEE Tx LPI timer is not supported\n");
2246                 return -EINVAL;
2247         }
2248 
2249         if (edata->advertised & ~(ADVERTISE_100_FULL | ADVERTISE_1000_FULL)) {
2250                 e_err("EEE advertisement supports only 100TX and/or 1000T full-duplex\n");
2251                 return -EINVAL;
2252         }
2253 
2254         adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
2255 
2256         hw->dev_spec.ich8lan.eee_disable = !edata->eee_enabled;
2257 
2258         pm_runtime_get_sync(netdev->dev.parent);
2259 
2260         /* reset the link */
2261         if (netif_running(netdev))
2262                 e1000e_reinit_locked(adapter);
2263         else
2264                 e1000e_reset(adapter);
2265 
2266         pm_runtime_put_sync(netdev->dev.parent);
2267 
2268         return 0;
2269 }
2270 
2271 static int e1000e_get_ts_info(struct net_device *netdev,
2272                               struct ethtool_ts_info *info)
2273 {
2274         struct e1000_adapter *adapter = netdev_priv(netdev);
2275 
2276         ethtool_op_get_ts_info(netdev, info);
2277 
2278         if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
2279                 return 0;
2280 
2281         info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
2282                                   SOF_TIMESTAMPING_RX_HARDWARE |
2283                                   SOF_TIMESTAMPING_RAW_HARDWARE);
2284 
2285         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2286 
2287         info->rx_filters = (BIT(HWTSTAMP_FILTER_NONE) |
2288                             BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2289                             BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2290                             BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2291                             BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
2292                             BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2293                             BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
2294                             BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2295                             BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2296                             BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2297                             BIT(HWTSTAMP_FILTER_ALL));
2298 
2299         if (adapter->ptp_clock)
2300                 info->phc_index = ptp_clock_index(adapter->ptp_clock);
2301 
2302         return 0;
2303 }
2304 
2305 static const struct ethtool_ops e1000_ethtool_ops = {
2306         .get_drvinfo            = e1000_get_drvinfo,
2307         .get_regs_len           = e1000_get_regs_len,
2308         .get_regs               = e1000_get_regs,
2309         .get_wol                = e1000_get_wol,
2310         .set_wol                = e1000_set_wol,
2311         .get_msglevel           = e1000_get_msglevel,
2312         .set_msglevel           = e1000_set_msglevel,
2313         .nway_reset             = e1000_nway_reset,
2314         .get_link               = ethtool_op_get_link,
2315         .get_eeprom_len         = e1000_get_eeprom_len,
2316         .get_eeprom             = e1000_get_eeprom,
2317         .set_eeprom             = e1000_set_eeprom,
2318         .get_ringparam          = e1000_get_ringparam,
2319         .set_ringparam          = e1000_set_ringparam,
2320         .get_pauseparam         = e1000_get_pauseparam,
2321         .set_pauseparam         = e1000_set_pauseparam,
2322         .self_test              = e1000_diag_test,
2323         .get_strings            = e1000_get_strings,
2324         .set_phys_id            = e1000_set_phys_id,
2325         .get_ethtool_stats      = e1000_get_ethtool_stats,
2326         .get_sset_count         = e1000e_get_sset_count,
2327         .get_coalesce           = e1000_get_coalesce,
2328         .set_coalesce           = e1000_set_coalesce,
2329         .get_rxnfc              = e1000_get_rxnfc,
2330         .get_ts_info            = e1000e_get_ts_info,
2331         .get_eee                = e1000e_get_eee,
2332         .set_eee                = e1000e_set_eee,
2333         .get_link_ksettings     = e1000_get_link_ksettings,
2334         .set_link_ksettings     = e1000_set_link_ksettings,
2335 };
2336 
2337 void e1000e_set_ethtool_ops(struct net_device *netdev)
2338 {
2339         netdev->ethtool_ops = &e1000_ethtool_ops;
2340 }

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