drivers/net/e1000e/ethtool.c

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2011 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   Linux NICS <linux.nics@intel.com>
  24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27 *******************************************************************************/
  28
  29 /* ethtool support for e1000 */
  30
  31 #include <linux/netdevice.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/pci.h>
  35 #include <linux/slab.h>
  36 #include <linux/delay.h>
  37
  38 #include "e1000.h"
  39
  40 enum {NETDEV_STATS, E1000_STATS};
  41
  42 struct e1000_stats {
  43         char stat_string[ETH_GSTRING_LEN];
  44         int type;
  45         int sizeof_stat;
  46         int stat_offset;
  47 };
  48
  49 #define E1000_STAT(str, m) { \
  50                 .stat_string = str, \
  51                 .type = E1000_STATS, \
  52                 .sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
  53                 .stat_offset = offsetof(struct e1000_adapter, m) }
  54 #define E1000_NETDEV_STAT(str, m) { \
  55                 .stat_string = str, \
  56                 .type = NETDEV_STATS, \
  57                 .sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
  58                 .stat_offset = offsetof(struct rtnl_link_stats64, m) }
  59
  60 static const struct e1000_stats e1000_gstrings_stats[] = {
  61         E1000_STAT("rx_packets", stats.gprc),
  62         E1000_STAT("tx_packets", stats.gptc),
  63         E1000_STAT("rx_bytes", stats.gorc),
  64         E1000_STAT("tx_bytes", stats.gotc),
  65         E1000_STAT("rx_broadcast", stats.bprc),
  66         E1000_STAT("tx_broadcast", stats.bptc),
  67         E1000_STAT("rx_multicast", stats.mprc),
  68         E1000_STAT("tx_multicast", stats.mptc),
  69         E1000_NETDEV_STAT("rx_errors", rx_errors),
  70         E1000_NETDEV_STAT("tx_errors", tx_errors),
  71         E1000_NETDEV_STAT("tx_dropped", tx_dropped),
  72         E1000_STAT("multicast", stats.mprc),
  73         E1000_STAT("collisions", stats.colc),
  74         E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
  75         E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
  76         E1000_STAT("rx_crc_errors", stats.crcerrs),
  77         E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
  78         E1000_STAT("rx_no_buffer_count", stats.rnbc),
  79         E1000_STAT("rx_missed_errors", stats.mpc),
  80         E1000_STAT("tx_aborted_errors", stats.ecol),
  81         E1000_STAT("tx_carrier_errors", stats.tncrs),
  82         E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
  83         E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
  84         E1000_STAT("tx_window_errors", stats.latecol),
  85         E1000_STAT("tx_abort_late_coll", stats.latecol),
  86         E1000_STAT("tx_deferred_ok", stats.dc),
  87         E1000_STAT("tx_single_coll_ok", stats.scc),
  88         E1000_STAT("tx_multi_coll_ok", stats.mcc),
  89         E1000_STAT("tx_timeout_count", tx_timeout_count),
  90         E1000_STAT("tx_restart_queue", restart_queue),
  91         E1000_STAT("rx_long_length_errors", stats.roc),
  92         E1000_STAT("rx_short_length_errors", stats.ruc),
  93         E1000_STAT("rx_align_errors", stats.algnerrc),
  94         E1000_STAT("tx_tcp_seg_good", stats.tsctc),
  95         E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
  96         E1000_STAT("rx_flow_control_xon", stats.xonrxc),
  97         E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
  98         E1000_STAT("tx_flow_control_xon", stats.xontxc),
  99         E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
 100         E1000_STAT("rx_long_byte_count", stats.gorc),
 101         E1000_STAT("rx_csum_offload_good", hw_csum_good),
 102         E1000_STAT("rx_csum_offload_errors", hw_csum_err),
 103         E1000_STAT("rx_header_split", rx_hdr_split),
 104         E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
 105         E1000_STAT("tx_smbus", stats.mgptc),
 106         E1000_STAT("rx_smbus", stats.mgprc),
 107         E1000_STAT("dropped_smbus", stats.mgpdc),
 108         E1000_STAT("rx_dma_failed", rx_dma_failed),
 109         E1000_STAT("tx_dma_failed", tx_dma_failed),
 110 };
 111
 112 #define E1000_GLOBAL_STATS_LEN  ARRAY_SIZE(e1000_gstrings_stats)
 113 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
 114 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 115         "Register test  (offline)", "Eeprom test    (offline)",
 116         "Interrupt test (offline)", "Loopback test  (offline)",
 117         "Link test   (on/offline)"
 118 };
 119 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 120
 121 static int e1000_get_settings(struct net_device *netdev,
 122                               struct ethtool_cmd *ecmd)
 123 {
 124         struct e1000_adapter *adapter = netdev_priv(netdev);
 125         struct e1000_hw *hw = &adapter->hw;
 126         u32 speed;
 127
 128         if (hw->phy.media_type == e1000_media_type_copper) {
 129
 130                 ecmd->supported = (SUPPORTED_10baseT_Half |
 131                                    SUPPORTED_10baseT_Full |
 132                                    SUPPORTED_100baseT_Half |
 133                                    SUPPORTED_100baseT_Full |
 134                                    SUPPORTED_1000baseT_Full |
 135                                    SUPPORTED_Autoneg |
 136                                    SUPPORTED_TP);
 137                 if (hw->phy.type == e1000_phy_ife)
 138                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 139                 ecmd->advertising = ADVERTISED_TP;
 140
 141                 if (hw->mac.autoneg == 1) {
 142                         ecmd->advertising |= ADVERTISED_Autoneg;
 143                         /* the e1000 autoneg seems to match ethtool nicely */
 144                         ecmd->advertising |= hw->phy.autoneg_advertised;
 145                 }
 146
 147                 ecmd->port = PORT_TP;
 148                 ecmd->phy_address = hw->phy.addr;
 149                 ecmd->transceiver = XCVR_INTERNAL;
 150
 151         } else {
 152                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 153                                      SUPPORTED_FIBRE |
 154                                      SUPPORTED_Autoneg);
 155
 156                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 157                                      ADVERTISED_FIBRE |
 158                                      ADVERTISED_Autoneg);
 159
 160                 ecmd->port = PORT_FIBRE;
 161                 ecmd->transceiver = XCVR_EXTERNAL;
 162         }
 163
 164         speed = -1;
 165         ecmd->duplex = -1;
 166
 167         if (netif_running(netdev)) {
 168                 if (netif_carrier_ok(netdev)) {
 169                         speed = adapter->link_speed;
 170                         ecmd->duplex = adapter->link_duplex - 1;
 171                 }
 172         } else {
 173                 u32 status = er32(STATUS);
 174                 if (status & E1000_STATUS_LU) {
 175                         if (status & E1000_STATUS_SPEED_1000)
 176                                 speed = SPEED_1000;
 177                         else if (status & E1000_STATUS_SPEED_100)
 178                                 speed = SPEED_100;
 179                         else
 180                                 speed = SPEED_10;
 181
 182                         if (status & E1000_STATUS_FD)
 183                                 ecmd->duplex = DUPLEX_FULL;
 184                         else
 185                                 ecmd->duplex = DUPLEX_HALF;
 186                 }
 187         }
 188
 189         ethtool_cmd_speed_set(ecmd, speed);
 190         ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 191                          hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 192
 193         /* MDI-X => 2; MDI =>1; Invalid =>0 */
 194         if ((hw->phy.media_type == e1000_media_type_copper) &&
 195             netif_carrier_ok(netdev))
 196                 ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
 197                                                       ETH_TP_MDI;
 198         else
 199                 ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 200
 201         return 0;
 202 }
 203
 204 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 205 {
 206         struct e1000_mac_info *mac = &adapter->hw.mac;
 207
 208         mac->autoneg = 0;
 209
 210         /* Make sure dplx is at most 1 bit and lsb of speed is not set
 211          * for the switch() below to work */
 212         if ((spd & 1) || (dplx & ~1))
 213                 goto err_inval;
 214
 215         /* Fiber NICs only allow 1000 gbps Full duplex */
 216         if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 217             spd != SPEED_1000 &&
 218             dplx != DUPLEX_FULL) {
 219                 goto err_inval;
 220         }
 221
 222         switch (spd + dplx) {
 223         case SPEED_10 + DUPLEX_HALF:
 224                 mac->forced_speed_duplex = ADVERTISE_10_HALF;
 225                 break;
 226         case SPEED_10 + DUPLEX_FULL:
 227                 mac->forced_speed_duplex = ADVERTISE_10_FULL;
 228                 break;
 229         case SPEED_100 + DUPLEX_HALF:
 230                 mac->forced_speed_duplex = ADVERTISE_100_HALF;
 231                 break;
 232         case SPEED_100 + DUPLEX_FULL:
 233                 mac->forced_speed_duplex = ADVERTISE_100_FULL;
 234                 break;
 235         case SPEED_1000 + DUPLEX_FULL:
 236                 mac->autoneg = 1;
 237                 adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 238                 break;
 239         case SPEED_1000 + DUPLEX_HALF: /* not supported */
 240         default:
 241                 goto err_inval;
 242         }
 243         return 0;
 244
 245 err_inval:
 246         e_err("Unsupported Speed/Duplex configuration\n");
 247         return -EINVAL;
 248 }
 249
 250 static int e1000_set_settings(struct net_device *netdev,
 251                               struct ethtool_cmd *ecmd)
 252 {
 253         struct e1000_adapter *adapter = netdev_priv(netdev);
 254         struct e1000_hw *hw = &adapter->hw;
 255
 256         /*
 257          * When SoL/IDER sessions are active, autoneg/speed/duplex
 258          * cannot be changed
 259          */
 260         if (e1000_check_reset_block(hw)) {
 261                 e_err("Cannot change link characteristics when SoL/IDER is "
 262                       "active.\n");
 263                 return -EINVAL;
 264         }
 265
 266         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 267                 usleep_range(1000, 2000);
 268
 269         if (ecmd->autoneg == AUTONEG_ENABLE) {
 270                 hw->mac.autoneg = 1;
 271                 if (hw->phy.media_type == e1000_media_type_fiber)
 272                         hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 273                                                      ADVERTISED_FIBRE |
 274                                                      ADVERTISED_Autoneg;
 275                 else
 276                         hw->phy.autoneg_advertised = ecmd->advertising |
 277                                                      ADVERTISED_TP |
 278                                                      ADVERTISED_Autoneg;
 279                 ecmd->advertising = hw->phy.autoneg_advertised;
 280                 if (adapter->fc_autoneg)
 281                         hw->fc.requested_mode = e1000_fc_default;
 282         } else {
 283                 u32 speed = ethtool_cmd_speed(ecmd);
 284                 if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 285                         clear_bit(__E1000_RESETTING, &adapter->state);
 286                         return -EINVAL;
 287                 }
 288         }
 289
 290         /* reset the link */
 291
 292         if (netif_running(adapter->netdev)) {
 293                 e1000e_down(adapter);
 294                 e1000e_up(adapter);
 295         } else {
 296                 e1000e_reset(adapter);
 297         }
 298
 299         clear_bit(__E1000_RESETTING, &adapter->state);
 300         return 0;
 301 }
 302
 303 static void e1000_get_pauseparam(struct net_device *netdev,
 304                                  struct ethtool_pauseparam *pause)
 305 {
 306         struct e1000_adapter *adapter = netdev_priv(netdev);
 307         struct e1000_hw *hw = &adapter->hw;
 308
 309         pause->autoneg =
 310                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 311
 312         if (hw->fc.current_mode == e1000_fc_rx_pause) {
 313                 pause->rx_pause = 1;
 314         } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 315                 pause->tx_pause = 1;
 316         } else if (hw->fc.current_mode == e1000_fc_full) {
 317                 pause->rx_pause = 1;
 318                 pause->tx_pause = 1;
 319         }
 320 }
 321
 322 static int e1000_set_pauseparam(struct net_device *netdev,
 323                                 struct ethtool_pauseparam *pause)
 324 {
 325         struct e1000_adapter *adapter = netdev_priv(netdev);
 326         struct e1000_hw *hw = &adapter->hw;
 327         int retval = 0;
 328
 329         adapter->fc_autoneg = pause->autoneg;
 330
 331         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 332                 usleep_range(1000, 2000);
 333
 334         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 335                 hw->fc.requested_mode = e1000_fc_default;
 336                 if (netif_running(adapter->netdev)) {
 337                         e1000e_down(adapter);
 338                         e1000e_up(adapter);
 339                 } else {
 340                         e1000e_reset(adapter);
 341                 }
 342         } else {
 343                 if (pause->rx_pause && pause->tx_pause)
 344                         hw->fc.requested_mode = e1000_fc_full;
 345                 else if (pause->rx_pause && !pause->tx_pause)
 346                         hw->fc.requested_mode = e1000_fc_rx_pause;
 347                 else if (!pause->rx_pause && pause->tx_pause)
 348                         hw->fc.requested_mode = e1000_fc_tx_pause;
 349                 else if (!pause->rx_pause && !pause->tx_pause)
 350                         hw->fc.requested_mode = e1000_fc_none;
 351
 352                 hw->fc.current_mode = hw->fc.requested_mode;
 353
 354                 if (hw->phy.media_type == e1000_media_type_fiber) {
 355                         retval = hw->mac.ops.setup_link(hw);
 356                         /* implicit goto out */
 357                 } else {
 358                         retval = e1000e_force_mac_fc(hw);
 359                         if (retval)
 360                                 goto out;
 361                         e1000e_set_fc_watermarks(hw);
 362                 }
 363         }
 364
 365 out:
 366         clear_bit(__E1000_RESETTING, &adapter->state);
 367         return retval;
 368 }
 369
 370 static u32 e1000_get_rx_csum(struct net_device *netdev)
 371 {
 372         struct e1000_adapter *adapter = netdev_priv(netdev);
 373         return adapter->flags & FLAG_RX_CSUM_ENABLED;
 374 }
 375
 376 static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
 377 {
 378         struct e1000_adapter *adapter = netdev_priv(netdev);
 379
 380         if (data)
 381                 adapter->flags |= FLAG_RX_CSUM_ENABLED;
 382         else
 383                 adapter->flags &= ~FLAG_RX_CSUM_ENABLED;
 384
 385         if (netif_running(netdev))
 386                 e1000e_reinit_locked(adapter);
 387         else
 388                 e1000e_reset(adapter);
 389         return 0;
 390 }
 391
 392 static u32 e1000_get_tx_csum(struct net_device *netdev)
 393 {
 394         return (netdev->features & NETIF_F_HW_CSUM) != 0;
 395 }
 396
 397 static int e1000_set_tx_csum(struct net_device *netdev, u32 data)
 398 {
 399         if (data)
 400                 netdev->features |= NETIF_F_HW_CSUM;
 401         else
 402                 netdev->features &= ~NETIF_F_HW_CSUM;
 403
 404         return 0;
 405 }
 406
 407 static int e1000_set_tso(struct net_device *netdev, u32 data)
 408 {
 409         struct e1000_adapter *adapter = netdev_priv(netdev);
 410
 411         if (data) {
 412                 netdev->features |= NETIF_F_TSO;
 413                 netdev->features |= NETIF_F_TSO6;
 414         } else {
 415                 netdev->features &= ~NETIF_F_TSO;
 416                 netdev->features &= ~NETIF_F_TSO6;
 417         }
 418
 419         adapter->flags |= FLAG_TSO_FORCE;
 420         return 0;
 421 }
 422
 423 static u32 e1000_get_msglevel(struct net_device *netdev)
 424 {
 425         struct e1000_adapter *adapter = netdev_priv(netdev);
 426         return adapter->msg_enable;
 427 }
 428
 429 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 430 {
 431         struct e1000_adapter *adapter = netdev_priv(netdev);
 432         adapter->msg_enable = data;
 433 }
 434
 435 static int e1000_get_regs_len(struct net_device *netdev)
 436 {
 437 #define E1000_REGS_LEN 32 /* overestimate */
 438         return E1000_REGS_LEN * sizeof(u32);
 439 }
 440
 441 static void e1000_get_regs(struct net_device *netdev,
 442                            struct ethtool_regs *regs, void *p)
 443 {
 444         struct e1000_adapter *adapter = netdev_priv(netdev);
 445         struct e1000_hw *hw = &adapter->hw;
 446         u32 *regs_buff = p;
 447         u16 phy_data;
 448
 449         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 450
 451         regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
 452                         adapter->pdev->device;
 453
 454         regs_buff[0]  = er32(CTRL);
 455         regs_buff[1]  = er32(STATUS);
 456
 457         regs_buff[2]  = er32(RCTL);
 458         regs_buff[3]  = er32(RDLEN);
 459         regs_buff[4]  = er32(RDH);
 460         regs_buff[5]  = er32(RDT);
 461         regs_buff[6]  = er32(RDTR);
 462
 463         regs_buff[7]  = er32(TCTL);
 464         regs_buff[8]  = er32(TDLEN);
 465         regs_buff[9]  = er32(TDH);
 466         regs_buff[10] = er32(TDT);
 467         regs_buff[11] = er32(TIDV);
 468
 469         regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
 470
 471         /* ethtool doesn't use anything past this point, so all this
 472          * code is likely legacy junk for apps that may or may not
 473          * exist */
 474         if (hw->phy.type == e1000_phy_m88) {
 475                 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 476                 regs_buff[13] = (u32)phy_data; /* cable length */
 477                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 478                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 479                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 480                 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 481                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 482                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 483                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 484                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 485                 /* phy receive errors */
 486                 regs_buff[22] = adapter->phy_stats.receive_errors;
 487                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 488         }
 489         regs_buff[21] = 0; /* was idle_errors */
 490         e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);
 491         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 492         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 493 }
 494
 495 static int e1000_get_eeprom_len(struct net_device *netdev)
 496 {
 497         struct e1000_adapter *adapter = netdev_priv(netdev);
 498         return adapter->hw.nvm.word_size * 2;
 499 }
 500
 501 static int e1000_get_eeprom(struct net_device *netdev,
 502                             struct ethtool_eeprom *eeprom, u8 *bytes)
 503 {
 504         struct e1000_adapter *adapter = netdev_priv(netdev);
 505         struct e1000_hw *hw = &adapter->hw;
 506         u16 *eeprom_buff;
 507         int first_word;
 508         int last_word;
 509         int ret_val = 0;
 510         u16 i;
 511
 512         if (eeprom->len == 0)
 513                 return -EINVAL;
 514
 515         eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 516
 517         first_word = eeprom->offset >> 1;
 518         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 519
 520         eeprom_buff = kmalloc(sizeof(u16) *
 521                         (last_word - first_word + 1), GFP_KERNEL);
 522         if (!eeprom_buff)
 523                 return -ENOMEM;
 524
 525         if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 526                 ret_val = e1000_read_nvm(hw, first_word,
 527                                          last_word - first_word + 1,
 528                                          eeprom_buff);
 529         } else {
 530                 for (i = 0; i < last_word - first_word + 1; i++) {
 531                         ret_val = e1000_read_nvm(hw, first_word + i, 1,
 532                                                       &eeprom_buff[i]);
 533                         if (ret_val)
 534                                 break;
 535                 }
 536         }
 537
 538         if (ret_val) {
 539                 /* a read error occurred, throw away the result */
 540                 memset(eeprom_buff, 0xff, sizeof(u16) *
 541                        (last_word - first_word + 1));
 542         } else {
 543                 /* Device's eeprom is always little-endian, word addressable */
 544                 for (i = 0; i < last_word - first_word + 1; i++)
 545                         le16_to_cpus(&eeprom_buff[i]);
 546         }
 547
 548         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 549         kfree(eeprom_buff);
 550
 551         return ret_val;
 552 }
 553
 554 static int e1000_set_eeprom(struct net_device *netdev,
 555                             struct ethtool_eeprom *eeprom, u8 *bytes)
 556 {
 557         struct e1000_adapter *adapter = netdev_priv(netdev);
 558         struct e1000_hw *hw = &adapter->hw;
 559         u16 *eeprom_buff;
 560         void *ptr;
 561         int max_len;
 562         int first_word;
 563         int last_word;
 564         int ret_val = 0;
 565         u16 i;
 566
 567         if (eeprom->len == 0)
 568                 return -EOPNOTSUPP;
 569
 570         if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 571                 return -EFAULT;
 572
 573         if (adapter->flags & FLAG_READ_ONLY_NVM)
 574                 return -EINVAL;
 575
 576         max_len = hw->nvm.word_size * 2;
 577
 578         first_word = eeprom->offset >> 1;
 579         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 580         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 581         if (!eeprom_buff)
 582                 return -ENOMEM;
 583
 584         ptr = (void *)eeprom_buff;
 585
 586         if (eeprom->offset & 1) {
 587                 /* need read/modify/write of first changed EEPROM word */
 588                 /* only the second byte of the word is being modified */
 589                 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 590                 ptr++;
 591         }
 592         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0))
 593                 /* need read/modify/write of last changed EEPROM word */
 594                 /* only the first byte of the word is being modified */
 595                 ret_val = e1000_read_nvm(hw, last_word, 1,
 596                                   &eeprom_buff[last_word - first_word]);
 597
 598         if (ret_val)
 599                 goto out;
 600
 601         /* Device's eeprom is always little-endian, word addressable */
 602         for (i = 0; i < last_word - first_word + 1; i++)
 603                 le16_to_cpus(&eeprom_buff[i]);
 604
 605         memcpy(ptr, bytes, eeprom->len);
 606
 607         for (i = 0; i < last_word - first_word + 1; i++)
 608                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 609
 610         ret_val = e1000_write_nvm(hw, first_word,
 611                                   last_word - first_word + 1, eeprom_buff);
 612
 613         if (ret_val)
 614                 goto out;
 615
 616         /*
 617          * Update the checksum over the first part of the EEPROM if needed
 618          * and flush shadow RAM for applicable controllers
 619          */
 620         if ((first_word <= NVM_CHECKSUM_REG) ||
 621             (hw->mac.type == e1000_82583) ||
 622             (hw->mac.type == e1000_82574) ||
 623             (hw->mac.type == e1000_82573))
 624                 ret_val = e1000e_update_nvm_checksum(hw);
 625
 626 out:
 627         kfree(eeprom_buff);
 628         return ret_val;
 629 }
 630
 631 static void e1000_get_drvinfo(struct net_device *netdev,
 632                               struct ethtool_drvinfo *drvinfo)
 633 {
 634         struct e1000_adapter *adapter = netdev_priv(netdev);
 635         char firmware_version[32];
 636
 637         strncpy(drvinfo->driver,  e1000e_driver_name,
 638                 sizeof(drvinfo->driver) - 1);
 639         strncpy(drvinfo->version, e1000e_driver_version,
 640                 sizeof(drvinfo->version) - 1);
 641
 642         /*
 643          * EEPROM image version # is reported as firmware version # for
 644          * PCI-E controllers
 645          */
 646         snprintf(firmware_version, sizeof(firmware_version), "%d.%d-%d",
 647                 (adapter->eeprom_vers & 0xF000) >> 12,
 648                 (adapter->eeprom_vers & 0x0FF0) >> 4,
 649                 (adapter->eeprom_vers & 0x000F));
 650
 651         strncpy(drvinfo->fw_version, firmware_version,
 652                 sizeof(drvinfo->fw_version) - 1);
 653         strncpy(drvinfo->bus_info, pci_name(adapter->pdev),
 654                 sizeof(drvinfo->bus_info) - 1);
 655         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 656         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 657 }
 658
 659 static void e1000_get_ringparam(struct net_device *netdev,
 660                                 struct ethtool_ringparam *ring)
 661 {
 662         struct e1000_adapter *adapter = netdev_priv(netdev);
 663         struct e1000_ring *tx_ring = adapter->tx_ring;
 664         struct e1000_ring *rx_ring = adapter->rx_ring;
 665
 666         ring->rx_max_pending = E1000_MAX_RXD;
 667         ring->tx_max_pending = E1000_MAX_TXD;
 668         ring->rx_mini_max_pending = 0;
 669         ring->rx_jumbo_max_pending = 0;
 670         ring->rx_pending = rx_ring->count;
 671         ring->tx_pending = tx_ring->count;
 672         ring->rx_mini_pending = 0;
 673         ring->rx_jumbo_pending = 0;
 674 }
 675
 676 static int e1000_set_ringparam(struct net_device *netdev,
 677                                struct ethtool_ringparam *ring)
 678 {
 679         struct e1000_adapter *adapter = netdev_priv(netdev);
 680         struct e1000_ring *tx_ring, *tx_old;
 681         struct e1000_ring *rx_ring, *rx_old;
 682         int err;
 683
 684         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 685                 return -EINVAL;
 686
 687         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 688                 usleep_range(1000, 2000);
 689
 690         if (netif_running(adapter->netdev))
 691                 e1000e_down(adapter);
 692
 693         tx_old = adapter->tx_ring;
 694         rx_old = adapter->rx_ring;
 695
 696         err = -ENOMEM;
 697         tx_ring = kmemdup(tx_old, sizeof(struct e1000_ring), GFP_KERNEL);
 698         if (!tx_ring)
 699                 goto err_alloc_tx;
 700
 701         rx_ring = kmemdup(rx_old, sizeof(struct e1000_ring), GFP_KERNEL);
 702         if (!rx_ring)
 703                 goto err_alloc_rx;
 704
 705         adapter->tx_ring = tx_ring;
 706         adapter->rx_ring = rx_ring;
 707
 708         rx_ring->count = max(ring->rx_pending, (u32)E1000_MIN_RXD);
 709         rx_ring->count = min(rx_ring->count, (u32)(E1000_MAX_RXD));
 710         rx_ring->count = ALIGN(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 711
 712         tx_ring->count = max(ring->tx_pending, (u32)E1000_MIN_TXD);
 713         tx_ring->count = min(tx_ring->count, (u32)(E1000_MAX_TXD));
 714         tx_ring->count = ALIGN(tx_ring->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 715
 716         if (netif_running(adapter->netdev)) {
 717                 /* Try to get new resources before deleting old */
 718                 err = e1000e_setup_rx_resources(adapter);
 719                 if (err)
 720                         goto err_setup_rx;
 721                 err = e1000e_setup_tx_resources(adapter);
 722                 if (err)
 723                         goto err_setup_tx;
 724
 725                 /*
 726                  * restore the old in order to free it,
 727                  * then add in the new
 728                  */
 729                 adapter->rx_ring = rx_old;
 730                 adapter->tx_ring = tx_old;
 731                 e1000e_free_rx_resources(adapter);
 732                 e1000e_free_tx_resources(adapter);
 733                 kfree(tx_old);
 734                 kfree(rx_old);
 735                 adapter->rx_ring = rx_ring;
 736                 adapter->tx_ring = tx_ring;
 737                 err = e1000e_up(adapter);
 738                 if (err)
 739                         goto err_setup;
 740         }
 741
 742         clear_bit(__E1000_RESETTING, &adapter->state);
 743         return 0;
 744 err_setup_tx:
 745         e1000e_free_rx_resources(adapter);
 746 err_setup_rx:
 747         adapter->rx_ring = rx_old;
 748         adapter->tx_ring = tx_old;
 749         kfree(rx_ring);
 750 err_alloc_rx:
 751         kfree(tx_ring);
 752 err_alloc_tx:
 753         e1000e_up(adapter);
 754 err_setup:
 755         clear_bit(__E1000_RESETTING, &adapter->state);
 756         return err;
 757 }
 758
 759 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 760                              int reg, int offset, u32 mask, u32 write)
 761 {
 762         u32 pat, val;
 763         static const u32 test[] = {
 764                 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 765         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 766                 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 767                                       (test[pat] & write));
 768                 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 769                 if (val != (test[pat] & write & mask)) {
 770                         e_err("pattern test reg %04X failed: got 0x%08X "
 771                               "expected 0x%08X\n", reg + offset, val,
 772                               (test[pat] & write & mask));
 773                         *data = reg;
 774                         return 1;
 775                 }
 776         }
 777         return 0;
 778 }
 779
 780 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 781                               int reg, u32 mask, u32 write)
 782 {
 783         u32 val;
 784         __ew32(&adapter->hw, reg, write & mask);
 785         val = __er32(&adapter->hw, reg);
 786         if ((write & mask) != (val & mask)) {
 787                 e_err("set/check reg %04X test failed: got 0x%08X "
 788                       "expected 0x%08X\n", reg, (val & mask), (write & mask));
 789                 *data = reg;
 790                 return 1;
 791         }
 792         return 0;
 793 }
 794 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 795         do {                                                                   \
 796                 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 797                         return 1;                                              \
 798         } while (0)
 799 #define REG_PATTERN_TEST(reg, mask, write)                                     \
 800         REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 801
 802 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
 803         do {                                                                   \
 804                 if (reg_set_and_check(adapter, data, reg, mask, write))        \
 805                         return 1;                                              \
 806         } while (0)
 807
 808 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 809 {
 810         struct e1000_hw *hw = &adapter->hw;
 811         struct e1000_mac_info *mac = &adapter->hw.mac;
 812         u32 value;
 813         u32 before;
 814         u32 after;
 815         u32 i;
 816         u32 toggle;
 817         u32 mask;
 818
 819         /*
 820          * The status register is Read Only, so a write should fail.
 821          * Some bits that get toggled are ignored.
 822          */
 823         switch (mac->type) {
 824         /* there are several bits on newer hardware that are r/w */
 825         case e1000_82571:
 826         case e1000_82572:
 827         case e1000_80003es2lan:
 828                 toggle = 0x7FFFF3FF;
 829                 break;
 830         default:
 831                 toggle = 0x7FFFF033;
 832                 break;
 833         }
 834
 835         before = er32(STATUS);
 836         value = (er32(STATUS) & toggle);
 837         ew32(STATUS, toggle);
 838         after = er32(STATUS) & toggle;
 839         if (value != after) {
 840                 e_err("failed STATUS register test got: 0x%08X expected: "
 841                       "0x%08X\n", after, value);
 842                 *data = 1;
 843                 return 1;
 844         }
 845         /* restore previous status */
 846         ew32(STATUS, before);
 847
 848         if (!(adapter->flags & FLAG_IS_ICH)) {
 849                 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 850                 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 851                 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 852                 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 853         }
 854
 855         REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 856         REG_PATTERN_TEST(E1000_RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 857         REG_PATTERN_TEST(E1000_RDLEN, 0x000FFF80, 0x000FFFFF);
 858         REG_PATTERN_TEST(E1000_RDH, 0x0000FFFF, 0x0000FFFF);
 859         REG_PATTERN_TEST(E1000_RDT, 0x0000FFFF, 0x0000FFFF);
 860         REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 861         REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 862         REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 863         REG_PATTERN_TEST(E1000_TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 864         REG_PATTERN_TEST(E1000_TDLEN, 0x000FFF80, 0x000FFFFF);
 865
 866         REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 867
 868         before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 869         REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 870         REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 871
 872         REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 873         REG_PATTERN_TEST(E1000_RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 874         if (!(adapter->flags & FLAG_IS_ICH))
 875                 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 876         REG_PATTERN_TEST(E1000_TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 877         REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 878         mask = 0x8003FFFF;
 879         switch (mac->type) {
 880         case e1000_ich10lan:
 881         case e1000_pchlan:
 882         case e1000_pch2lan:
 883                 mask |= (1 << 18);
 884                 break;
 885         default:
 886                 break;
 887         }
 888         for (i = 0; i < mac->rar_entry_count; i++)
 889                 REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1),
 890                                        mask, 0xFFFFFFFF);
 891
 892         for (i = 0; i < mac->mta_reg_count; i++)
 893                 REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 894
 895         *data = 0;
 896         return 0;
 897 }
 898
 899 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 900 {
 901         u16 temp;
 902         u16 checksum = 0;
 903         u16 i;
 904
 905         *data = 0;
 906         /* Read and add up the contents of the EEPROM */
 907         for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 908                 if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 909                         *data = 1;
 910                         return *data;
 911                 }
 912                 checksum += temp;
 913         }
 914
 915         /* If Checksum is not Correct return error else test passed */
 916         if ((checksum != (u16) NVM_SUM) && !(*data))
 917                 *data = 2;
 918
 919         return *data;
 920 }
 921
 922 static irqreturn_t e1000_test_intr(int irq, void *data)
 923 {
 924         struct net_device *netdev = (struct net_device *) data;
 925         struct e1000_adapter *adapter = netdev_priv(netdev);
 926         struct e1000_hw *hw = &adapter->hw;
 927
 928         adapter->test_icr |= er32(ICR);
 929
 930         return IRQ_HANDLED;
 931 }
 932
 933 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 934 {
 935         struct net_device *netdev = adapter->netdev;
 936         struct e1000_hw *hw = &adapter->hw;
 937         u32 mask;
 938         u32 shared_int = 1;
 939         u32 irq = adapter->pdev->irq;
 940         int i;
 941         int ret_val = 0;
 942         int int_mode = E1000E_INT_MODE_LEGACY;
 943
 944         *data = 0;
 945
 946         /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
 947         if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
 948                 int_mode = adapter->int_mode;
 949                 e1000e_reset_interrupt_capability(adapter);
 950                 adapter->int_mode = E1000E_INT_MODE_LEGACY;
 951                 e1000e_set_interrupt_capability(adapter);
 952         }
 953         /* Hook up test interrupt handler just for this test */
 954         if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 955                          netdev)) {
 956                 shared_int = 0;
 957         } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED,
 958                  netdev->name, netdev)) {
 959                 *data = 1;
 960                 ret_val = -1;
 961                 goto out;
 962         }
 963         e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
 964
 965         /* Disable all the interrupts */
 966         ew32(IMC, 0xFFFFFFFF);
 967         e1e_flush();
 968         usleep_range(10000, 20000);
 969
 970         /* Test each interrupt */
 971         for (i = 0; i < 10; i++) {
 972                 /* Interrupt to test */
 973                 mask = 1 << i;
 974
 975                 if (adapter->flags & FLAG_IS_ICH) {
 976                         switch (mask) {
 977                         case E1000_ICR_RXSEQ:
 978                                 continue;
 979                         case 0x00000100:
 980                                 if (adapter->hw.mac.type == e1000_ich8lan ||
 981                                     adapter->hw.mac.type == e1000_ich9lan)
 982                                         continue;
 983                                 break;
 984                         default:
 985                                 break;
 986                         }
 987                 }
 988
 989                 if (!shared_int) {
 990                         /*
 991                          * Disable the interrupt to be reported in
 992                          * the cause register and then force the same
 993                          * interrupt and see if one gets posted.  If
 994                          * an interrupt was posted to the bus, the
 995                          * test failed.
 996                          */
 997                         adapter->test_icr = 0;
 998                         ew32(IMC, mask);
 999                         ew32(ICS, mask);
1000                         e1e_flush();
1001                         usleep_range(10000, 20000);
1002
1003                         if (adapter->test_icr & mask) {
1004                                 *data = 3;
1005                                 break;
1006                         }
1007                 }
1008
1009                 /*
1010                  * Enable the interrupt to be reported in
1011                  * the cause register and then force the same
1012                  * interrupt and see if one gets posted.  If
1013                  * an interrupt was not posted to the bus, the
1014                  * test failed.
1015                  */
1016                 adapter->test_icr = 0;
1017                 ew32(IMS, mask);
1018                 ew32(ICS, mask);
1019                 e1e_flush();
1020                 usleep_range(10000, 20000);
1021
1022                 if (!(adapter->test_icr & mask)) {
1023                         *data = 4;
1024                         break;
1025                 }
1026
1027                 if (!shared_int) {
1028                         /*
1029                          * Disable the other interrupts to be reported in
1030                          * the cause register and then force the other
1031                          * interrupts and see if any get posted.  If
1032                          * an interrupt was posted to the bus, the
1033                          * test failed.
1034                          */
1035                         adapter->test_icr = 0;
1036                         ew32(IMC, ~mask & 0x00007FFF);
1037                         ew32(ICS, ~mask & 0x00007FFF);
1038                         e1e_flush();
1039                         usleep_range(10000, 20000);
1040
1041                         if (adapter->test_icr) {
1042                                 *data = 5;
1043                                 break;
1044                         }
1045                 }
1046         }
1047
1048         /* Disable all the interrupts */
1049         ew32(IMC, 0xFFFFFFFF);
1050         e1e_flush();
1051         usleep_range(10000, 20000);
1052
1053         /* Unhook test interrupt handler */
1054         free_irq(irq, netdev);
1055
1056 out:
1057         if (int_mode == E1000E_INT_MODE_MSIX) {
1058                 e1000e_reset_interrupt_capability(adapter);
1059                 adapter->int_mode = int_mode;
1060                 e1000e_set_interrupt_capability(adapter);
1061         }
1062
1063         return ret_val;
1064 }
1065
1066 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1067 {
1068         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1069         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1070         struct pci_dev *pdev = adapter->pdev;
1071         int i;
1072
1073         if (tx_ring->desc && tx_ring->buffer_info) {
1074                 for (i = 0; i < tx_ring->count; i++) {
1075                         if (tx_ring->buffer_info[i].dma)
1076                                 dma_unmap_single(&pdev->dev,
1077                                         tx_ring->buffer_info[i].dma,
1078                                         tx_ring->buffer_info[i].length,
1079                                         DMA_TO_DEVICE);
1080                         if (tx_ring->buffer_info[i].skb)
1081                                 dev_kfree_skb(tx_ring->buffer_info[i].skb);
1082                 }
1083         }
1084
1085         if (rx_ring->desc && rx_ring->buffer_info) {
1086                 for (i = 0; i < rx_ring->count; i++) {
1087                         if (rx_ring->buffer_info[i].dma)
1088                                 dma_unmap_single(&pdev->dev,
1089                                         rx_ring->buffer_info[i].dma,
1090                                         2048, DMA_FROM_DEVICE);
1091                         if (rx_ring->buffer_info[i].skb)
1092                                 dev_kfree_skb(rx_ring->buffer_info[i].skb);
1093                 }
1094         }
1095
1096         if (tx_ring->desc) {
1097                 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1098                                   tx_ring->dma);
1099                 tx_ring->desc = NULL;
1100         }
1101         if (rx_ring->desc) {
1102                 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1103                                   rx_ring->dma);
1104                 rx_ring->desc = NULL;
1105         }
1106
1107         kfree(tx_ring->buffer_info);
1108         tx_ring->buffer_info = NULL;
1109         kfree(rx_ring->buffer_info);
1110         rx_ring->buffer_info = NULL;
1111 }
1112
1113 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1114 {
1115         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1116         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1117         struct pci_dev *pdev = adapter->pdev;
1118         struct e1000_hw *hw = &adapter->hw;
1119         u32 rctl;
1120         int i;
1121         int ret_val;
1122
1123         /* Setup Tx descriptor ring and Tx buffers */
1124
1125         if (!tx_ring->count)
1126                 tx_ring->count = E1000_DEFAULT_TXD;
1127
1128         tx_ring->buffer_info = kcalloc(tx_ring->count,
1129                                        sizeof(struct e1000_buffer),
1130                                        GFP_KERNEL);
1131         if (!(tx_ring->buffer_info)) {
1132                 ret_val = 1;
1133                 goto err_nomem;
1134         }
1135
1136         tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1137         tx_ring->size = ALIGN(tx_ring->size, 4096);
1138         tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1139                                            &tx_ring->dma, GFP_KERNEL);
1140         if (!tx_ring->desc) {
1141                 ret_val = 2;
1142                 goto err_nomem;
1143         }
1144         tx_ring->next_to_use = 0;
1145         tx_ring->next_to_clean = 0;
1146
1147         ew32(TDBAL, ((u64) tx_ring->dma & 0x00000000FFFFFFFF));
1148         ew32(TDBAH, ((u64) tx_ring->dma >> 32));
1149         ew32(TDLEN, tx_ring->count * sizeof(struct e1000_tx_desc));
1150         ew32(TDH, 0);
1151         ew32(TDT, 0);
1152         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1153              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1154              E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1155
1156         for (i = 0; i < tx_ring->count; i++) {
1157                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1158                 struct sk_buff *skb;
1159                 unsigned int skb_size = 1024;
1160
1161                 skb = alloc_skb(skb_size, GFP_KERNEL);
1162                 if (!skb) {
1163                         ret_val = 3;
1164                         goto err_nomem;
1165                 }
1166                 skb_put(skb, skb_size);
1167                 tx_ring->buffer_info[i].skb = skb;
1168                 tx_ring->buffer_info[i].length = skb->len;
1169                 tx_ring->buffer_info[i].dma =
1170                         dma_map_single(&pdev->dev, skb->data, skb->len,
1171                                        DMA_TO_DEVICE);
1172                 if (dma_mapping_error(&pdev->dev,
1173                                       tx_ring->buffer_info[i].dma)) {
1174                         ret_val = 4;
1175                         goto err_nomem;
1176                 }
1177                 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1178                 tx_desc->lower.data = cpu_to_le32(skb->len);
1179                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1180                                                    E1000_TXD_CMD_IFCS |
1181                                                    E1000_TXD_CMD_RS);
1182                 tx_desc->upper.data = 0;
1183         }
1184
1185         /* Setup Rx descriptor ring and Rx buffers */
1186
1187         if (!rx_ring->count)
1188                 rx_ring->count = E1000_DEFAULT_RXD;
1189
1190         rx_ring->buffer_info = kcalloc(rx_ring->count,
1191                                        sizeof(struct e1000_buffer),
1192                                        GFP_KERNEL);
1193         if (!(rx_ring->buffer_info)) {
1194                 ret_val = 5;
1195                 goto err_nomem;
1196         }
1197
1198         rx_ring->size = rx_ring->count * sizeof(struct e1000_rx_desc);
1199         rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1200                                            &rx_ring->dma, GFP_KERNEL);
1201         if (!rx_ring->desc) {
1202                 ret_val = 6;
1203                 goto err_nomem;
1204         }
1205         rx_ring->next_to_use = 0;
1206         rx_ring->next_to_clean = 0;
1207
1208         rctl = er32(RCTL);
1209         if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1210                 ew32(RCTL, rctl & ~E1000_RCTL_EN);
1211         ew32(RDBAL, ((u64) rx_ring->dma & 0xFFFFFFFF));
1212         ew32(RDBAH, ((u64) rx_ring->dma >> 32));
1213         ew32(RDLEN, rx_ring->size);
1214         ew32(RDH, 0);
1215         ew32(RDT, 0);
1216         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1217                 E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1218                 E1000_RCTL_SBP | E1000_RCTL_SECRC |
1219                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1220                 (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1221         ew32(RCTL, rctl);
1222
1223         for (i = 0; i < rx_ring->count; i++) {
1224                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rx_ring, i);
1225                 struct sk_buff *skb;
1226
1227                 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1228                 if (!skb) {
1229                         ret_val = 7;
1230                         goto err_nomem;
1231                 }
1232                 skb_reserve(skb, NET_IP_ALIGN);
1233                 rx_ring->buffer_info[i].skb = skb;
1234                 rx_ring->buffer_info[i].dma =
1235                         dma_map_single(&pdev->dev, skb->data, 2048,
1236                                        DMA_FROM_DEVICE);
1237                 if (dma_mapping_error(&pdev->dev,
1238                                       rx_ring->buffer_info[i].dma)) {
1239                         ret_val = 8;
1240                         goto err_nomem;
1241                 }
1242                 rx_desc->buffer_addr =
1243                         cpu_to_le64(rx_ring->buffer_info[i].dma);
1244                 memset(skb->data, 0x00, skb->len);
1245         }
1246
1247         return 0;
1248
1249 err_nomem:
1250         e1000_free_desc_rings(adapter);
1251         return ret_val;
1252 }
1253
1254 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1255 {
1256         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1257         e1e_wphy(&adapter->hw, 29, 0x001F);
1258         e1e_wphy(&adapter->hw, 30, 0x8FFC);
1259         e1e_wphy(&adapter->hw, 29, 0x001A);
1260         e1e_wphy(&adapter->hw, 30, 0x8FF0);
1261 }
1262
1263 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1264 {
1265         struct e1000_hw *hw = &adapter->hw;
1266         u32 ctrl_reg = 0;
1267         u16 phy_reg = 0;
1268         s32 ret_val = 0;
1269
1270         hw->mac.autoneg = 0;
1271
1272         if (hw->phy.type == e1000_phy_ife) {
1273                 /* force 100, set loopback */
1274                 e1e_wphy(hw, PHY_CONTROL, 0x6100);
1275
1276                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1277                 ctrl_reg = er32(CTRL);
1278                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1279                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1280                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1281                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1282                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1283
1284                 ew32(CTRL, ctrl_reg);
1285                 e1e_flush();
1286                 udelay(500);
1287
1288                 return 0;
1289         }
1290
1291         /* Specific PHY configuration for loopback */
1292         switch (hw->phy.type) {
1293         case e1000_phy_m88:
1294                 /* Auto-MDI/MDIX Off */
1295                 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1296                 /* reset to update Auto-MDI/MDIX */
1297                 e1e_wphy(hw, PHY_CONTROL, 0x9140);
1298                 /* autoneg off */
1299                 e1e_wphy(hw, PHY_CONTROL, 0x8140);
1300                 break;
1301         case e1000_phy_gg82563:
1302                 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1303                 break;
1304         case e1000_phy_bm:
1305                 /* Set Default MAC Interface speed to 1GB */
1306                 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1307                 phy_reg &= ~0x0007;
1308                 phy_reg |= 0x006;
1309                 e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1310                 /* Assert SW reset for above settings to take effect */
1311                 e1000e_commit_phy(hw);
1312                 mdelay(1);
1313                 /* Force Full Duplex */
1314                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1315                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1316                 /* Set Link Up (in force link) */
1317                 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1318                 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1319                 /* Force Link */
1320                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1321                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1322                 /* Set Early Link Enable */
1323                 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1324                 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1325                 break;
1326         case e1000_phy_82577:
1327         case e1000_phy_82578:
1328                 /* Workaround: K1 must be disabled for stable 1Gbps operation */
1329                 ret_val = hw->phy.ops.acquire(hw);
1330                 if (ret_val) {
1331                         e_err("Cannot setup 1Gbps loopback.\n");
1332                         return ret_val;
1333                 }
1334                 e1000_configure_k1_ich8lan(hw, false);
1335                 hw->phy.ops.release(hw);
1336                 break;
1337         case e1000_phy_82579:
1338                 /* Disable PHY energy detect power down */
1339                 e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1340                 e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~(1 << 3));
1341                 /* Disable full chip energy detect */
1342                 e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1343                 e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1344                 /* Enable loopback on the PHY */
1345 #define I82577_PHY_LBK_CTRL          19
1346                 e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1347                 break;
1348         default:
1349                 break;
1350         }
1351
1352         /* force 1000, set loopback */
1353         e1e_wphy(hw, PHY_CONTROL, 0x4140);
1354         mdelay(250);
1355
1356         /* Now set up the MAC to the same speed/duplex as the PHY. */
1357         ctrl_reg = er32(CTRL);
1358         ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1359         ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1360                      E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1361                      E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1362                      E1000_CTRL_FD);     /* Force Duplex to FULL */
1363
1364         if (adapter->flags & FLAG_IS_ICH)
1365                 ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1366
1367         if (hw->phy.media_type == e1000_media_type_copper &&
1368             hw->phy.type == e1000_phy_m88) {
1369                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1370         } else {
1371                 /*
1372                  * Set the ILOS bit on the fiber Nic if half duplex link is
1373                  * detected.
1374                  */
1375                 if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1376                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1377         }
1378
1379         ew32(CTRL, ctrl_reg);
1380
1381         /*
1382          * Disable the receiver on the PHY so when a cable is plugged in, the
1383          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1384          */
1385         if (hw->phy.type == e1000_phy_m88)
1386                 e1000_phy_disable_receiver(adapter);
1387
1388         udelay(500);
1389
1390         return 0;
1391 }
1392
1393 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1394 {
1395         struct e1000_hw *hw = &adapter->hw;
1396         u32 ctrl = er32(CTRL);
1397         int link = 0;
1398
1399         /* special requirements for 82571/82572 fiber adapters */
1400
1401         /*
1402          * jump through hoops to make sure link is up because serdes
1403          * link is hardwired up
1404          */
1405         ctrl |= E1000_CTRL_SLU;
1406         ew32(CTRL, ctrl);
1407
1408         /* disable autoneg */
1409         ctrl = er32(TXCW);
1410         ctrl &= ~(1 << 31);
1411         ew32(TXCW, ctrl);
1412
1413         link = (er32(STATUS) & E1000_STATUS_LU);
1414
1415         if (!link) {
1416                 /* set invert loss of signal */
1417                 ctrl = er32(CTRL);
1418                 ctrl |= E1000_CTRL_ILOS;
1419                 ew32(CTRL, ctrl);
1420         }
1421
1422         /*
1423          * special write to serdes control register to enable SerDes analog
1424          * loopback
1425          */
1426 #define E1000_SERDES_LB_ON 0x410
1427         ew32(SCTL, E1000_SERDES_LB_ON);
1428         e1e_flush();
1429         usleep_range(10000, 20000);
1430
1431         return 0;
1432 }
1433
1434 /* only call this for fiber/serdes connections to es2lan */
1435 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1436 {
1437         struct e1000_hw *hw = &adapter->hw;
1438         u32 ctrlext = er32(CTRL_EXT);
1439         u32 ctrl = er32(CTRL);
1440
1441         /*
1442          * save CTRL_EXT to restore later, reuse an empty variable (unused
1443          * on mac_type 80003es2lan)
1444          */
1445         adapter->tx_fifo_head = ctrlext;
1446
1447         /* clear the serdes mode bits, putting the device into mac loopback */
1448         ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1449         ew32(CTRL_EXT, ctrlext);
1450
1451         /* force speed to 1000/FD, link up */
1452         ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1453         ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1454                  E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1455         ew32(CTRL, ctrl);
1456
1457         /* set mac loopback */
1458         ctrl = er32(RCTL);
1459         ctrl |= E1000_RCTL_LBM_MAC;
1460         ew32(RCTL, ctrl);
1461
1462         /* set testing mode parameters (no need to reset later) */
1463 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1464 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1465         ew32(KMRNCTRLSTA,
1466              (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1467
1468         return 0;
1469 }
1470
1471 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1472 {
1473         struct e1000_hw *hw = &adapter->hw;
1474         u32 rctl;
1475
1476         if (hw->phy.media_type == e1000_media_type_fiber ||
1477             hw->phy.media_type == e1000_media_type_internal_serdes) {
1478                 switch (hw->mac.type) {
1479                 case e1000_80003es2lan:
1480                         return e1000_set_es2lan_mac_loopback(adapter);
1481                         break;
1482                 case e1000_82571:
1483                 case e1000_82572:
1484                         return e1000_set_82571_fiber_loopback(adapter);
1485                         break;
1486                 default:
1487                         rctl = er32(RCTL);
1488                         rctl |= E1000_RCTL_LBM_TCVR;
1489                         ew32(RCTL, rctl);
1490                         return 0;
1491                 }
1492         } else if (hw->phy.media_type == e1000_media_type_copper) {
1493                 return e1000_integrated_phy_loopback(adapter);
1494         }
1495
1496         return 7;
1497 }
1498
1499 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1500 {
1501         struct e1000_hw *hw = &adapter->hw;
1502         u32 rctl;
1503         u16 phy_reg;
1504
1505         rctl = er32(RCTL);
1506         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1507         ew32(RCTL, rctl);
1508
1509         switch (hw->mac.type) {
1510         case e1000_80003es2lan:
1511                 if (hw->phy.media_type == e1000_media_type_fiber ||
1512                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1513                         /* restore CTRL_EXT, stealing space from tx_fifo_head */
1514                         ew32(CTRL_EXT, adapter->tx_fifo_head);
1515                         adapter->tx_fifo_head = 0;
1516                 }
1517                 /* fall through */
1518         case e1000_82571:
1519         case e1000_82572:
1520                 if (hw->phy.media_type == e1000_media_type_fiber ||
1521                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1522 #define E1000_SERDES_LB_OFF 0x400
1523                         ew32(SCTL, E1000_SERDES_LB_OFF);
1524                         e1e_flush();
1525                         usleep_range(10000, 20000);
1526                         break;
1527                 }
1528                 /* Fall Through */
1529         default:
1530                 hw->mac.autoneg = 1;
1531                 if (hw->phy.type == e1000_phy_gg82563)
1532                         e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1533                 e1e_rphy(hw, PHY_CONTROL, &phy_reg);
1534                 if (phy_reg & MII_CR_LOOPBACK) {
1535                         phy_reg &= ~MII_CR_LOOPBACK;
1536                         e1e_wphy(hw, PHY_CONTROL, phy_reg);
1537                         e1000e_commit_phy(hw);
1538                 }
1539                 break;
1540         }
1541 }
1542
1543 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1544                                       unsigned int frame_size)
1545 {
1546         memset(skb->data, 0xFF, frame_size);
1547         frame_size &= ~1;
1548         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1549         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1550         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1551 }
1552
1553 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1554                                     unsigned int frame_size)
1555 {
1556         frame_size &= ~1;
1557         if (*(skb->data + 3) == 0xFF)
1558                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1559                    (*(skb->data + frame_size / 2 + 12) == 0xAF))
1560                         return 0;
1561         return 13;
1562 }
1563
1564 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1565 {
1566         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1567         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1568         struct pci_dev *pdev = adapter->pdev;
1569         struct e1000_hw *hw = &adapter->hw;
1570         int i, j, k, l;
1571         int lc;
1572         int good_cnt;
1573         int ret_val = 0;
1574         unsigned long time;
1575
1576         ew32(RDT, rx_ring->count - 1);
1577
1578         /*
1579          * Calculate the loop count based on the largest descriptor ring
1580          * The idea is to wrap the largest ring a number of times using 64
1581          * send/receive pairs during each loop
1582          */
1583
1584         if (rx_ring->count <= tx_ring->count)
1585                 lc = ((tx_ring->count / 64) * 2) + 1;
1586         else
1587                 lc = ((rx_ring->count / 64) * 2) + 1;
1588
1589         k = 0;
1590         l = 0;
1591         for (j = 0; j <= lc; j++) { /* loop count loop */
1592                 for (i = 0; i < 64; i++) { /* send the packets */
1593                         e1000_create_lbtest_frame(tx_ring->buffer_info[k].skb,
1594                                                   1024);
1595                         dma_sync_single_for_device(&pdev->dev,
1596                                         tx_ring->buffer_info[k].dma,
1597                                         tx_ring->buffer_info[k].length,
1598                                         DMA_TO_DEVICE);
1599                         k++;
1600                         if (k == tx_ring->count)
1601                                 k = 0;
1602                 }
1603                 ew32(TDT, k);
1604                 e1e_flush();
1605                 msleep(200);
1606                 time = jiffies; /* set the start time for the receive */
1607                 good_cnt = 0;
1608                 do { /* receive the sent packets */
1609                         dma_sync_single_for_cpu(&pdev->dev,
1610                                         rx_ring->buffer_info[l].dma, 2048,
1611                                         DMA_FROM_DEVICE);
1612
1613                         ret_val = e1000_check_lbtest_frame(
1614                                         rx_ring->buffer_info[l].skb, 1024);
1615                         if (!ret_val)
1616                                 good_cnt++;
1617                         l++;
1618                         if (l == rx_ring->count)
1619                                 l = 0;
1620                         /*
1621                          * time + 20 msecs (200 msecs on 2.4) is more than
1622                          * enough time to complete the receives, if it's
1623                          * exceeded, break and error off
1624                          */
1625                 } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1626                 if (good_cnt != 64) {
1627                         ret_val = 13; /* ret_val is the same as mis-compare */
1628                         break;
1629                 }
1630                 if (jiffies >= (time + 20)) {
1631                         ret_val = 14; /* error code for time out error */
1632                         break;
1633                 }
1634         } /* end loop count loop */
1635         return ret_val;
1636 }
1637
1638 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1639 {
1640         /*
1641          * PHY loopback cannot be performed if SoL/IDER
1642          * sessions are active
1643          */
1644         if (e1000_check_reset_block(&adapter->hw)) {
1645                 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1646                 *data = 0;
1647                 goto out;
1648         }
1649
1650         *data = e1000_setup_desc_rings(adapter);
1651         if (*data)
1652                 goto out;
1653
1654         *data = e1000_setup_loopback_test(adapter);
1655         if (*data)
1656                 goto err_loopback;
1657
1658         *data = e1000_run_loopback_test(adapter);
1659         e1000_loopback_cleanup(adapter);
1660
1661 err_loopback:
1662         e1000_free_desc_rings(adapter);
1663 out:
1664         return *data;
1665 }
1666
1667 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1668 {
1669         struct e1000_hw *hw = &adapter->hw;
1670
1671         *data = 0;
1672         if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1673                 int i = 0;
1674                 hw->mac.serdes_has_link = false;
1675
1676                 /*
1677                  * On some blade server designs, link establishment
1678                  * could take as long as 2-3 minutes
1679                  */
1680                 do {
1681                         hw->mac.ops.check_for_link(hw);
1682                         if (hw->mac.serdes_has_link)
1683                                 return *data;
1684                         msleep(20);
1685                 } while (i++ < 3750);
1686
1687                 *data = 1;
1688         } else {
1689                 hw->mac.ops.check_for_link(hw);
1690                 if (hw->mac.autoneg)
1691                         /*
1692                          * On some Phy/switch combinations, link establishment
1693                          * can take a few seconds more than expected.
1694                          */
1695                         msleep(5000);
1696
1697                 if (!(er32(STATUS) & E1000_STATUS_LU))
1698                         *data = 1;
1699         }
1700         return *data;
1701 }
1702
1703 static int e1000e_get_sset_count(struct net_device *netdev, int sset)
1704 {
1705         switch (sset) {
1706         case ETH_SS_TEST:
1707                 return E1000_TEST_LEN;
1708         case ETH_SS_STATS:
1709                 return E1000_STATS_LEN;
1710         default:
1711                 return -EOPNOTSUPP;
1712         }
1713 }
1714
1715 static void e1000_diag_test(struct net_device *netdev,
1716                             struct ethtool_test *eth_test, u64 *data)
1717 {
1718         struct e1000_adapter *adapter = netdev_priv(netdev);
1719         u16 autoneg_advertised;
1720         u8 forced_speed_duplex;
1721         u8 autoneg;
1722         bool if_running = netif_running(netdev);
1723
1724         set_bit(__E1000_TESTING, &adapter->state);
1725
1726         if (!if_running) {
1727                 /* Get control of and reset hardware */
1728                 if (adapter->flags & FLAG_HAS_AMT)
1729                         e1000e_get_hw_control(adapter);
1730
1731                 e1000e_power_up_phy(adapter);
1732
1733                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1734                 e1000e_reset(adapter);
1735                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1736         }
1737
1738         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1739                 /* Offline tests */
1740
1741                 /* save speed, duplex, autoneg settings */
1742                 autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1743                 forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1744                 autoneg = adapter->hw.mac.autoneg;
1745
1746                 e_info("offline testing starting\n");
1747
1748                 if (if_running)
1749                         /* indicate we're in test mode */
1750                         dev_close(netdev);
1751
1752                 if (e1000_reg_test(adapter, &data[0]))
1753                         eth_test->flags |= ETH_TEST_FL_FAILED;
1754
1755                 e1000e_reset(adapter);
1756                 if (e1000_eeprom_test(adapter, &data[1]))
1757                         eth_test->flags |= ETH_TEST_FL_FAILED;
1758
1759                 e1000e_reset(adapter);
1760                 if (e1000_intr_test(adapter, &data[2]))
1761                         eth_test->flags |= ETH_TEST_FL_FAILED;
1762
1763                 e1000e_reset(adapter);
1764                 if (e1000_loopback_test(adapter, &data[3]))
1765                         eth_test->flags |= ETH_TEST_FL_FAILED;
1766
1767                 /* force this routine to wait until autoneg complete/timeout */
1768                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1769                 e1000e_reset(adapter);
1770                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1771
1772                 if (e1000_link_test(adapter, &data[4]))
1773                         eth_test->flags |= ETH_TEST_FL_FAILED;
1774
1775                 /* restore speed, duplex, autoneg settings */
1776                 adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1777                 adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1778                 adapter->hw.mac.autoneg = autoneg;
1779                 e1000e_reset(adapter);
1780
1781                 clear_bit(__E1000_TESTING, &adapter->state);
1782                 if (if_running)
1783                         dev_open(netdev);
1784         } else {
1785                 /* Online tests */
1786
1787                 e_info("online testing starting\n");
1788
1789                 /* register, eeprom, intr and loopback tests not run online */
1790                 data[0] = 0;
1791                 data[1] = 0;
1792                 data[2] = 0;
1793                 data[3] = 0;
1794
1795                 if (e1000_link_test(adapter, &data[4]))
1796                         eth_test->flags |= ETH_TEST_FL_FAILED;
1797
1798                 clear_bit(__E1000_TESTING, &adapter->state);
1799         }
1800
1801         if (!if_running) {
1802                 e1000e_reset(adapter);
1803
1804                 if (adapter->flags & FLAG_HAS_AMT)
1805                         e1000e_release_hw_control(adapter);
1806         }
1807
1808         msleep_interruptible(4 * 1000);
1809 }
1810
1811 static void e1000_get_wol(struct net_device *netdev,
1812                           struct ethtool_wolinfo *wol)
1813 {
1814         struct e1000_adapter *adapter = netdev_priv(netdev);
1815
1816         wol->supported = 0;
1817         wol->wolopts = 0;
1818
1819         if (!(adapter->flags & FLAG_HAS_WOL) ||
1820             !device_can_wakeup(&adapter->pdev->dev))
1821                 return;
1822
1823         wol->supported = WAKE_UCAST | WAKE_MCAST |
1824             WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1825
1826         /* apply any specific unsupported masks here */
1827         if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1828                 wol->supported &= ~WAKE_UCAST;
1829
1830                 if (adapter->wol & E1000_WUFC_EX)
1831                         e_err("Interface does not support directed (unicast) "
1832                               "frame wake-up packets\n");
1833         }
1834
1835         if (adapter->wol & E1000_WUFC_EX)
1836                 wol->wolopts |= WAKE_UCAST;
1837         if (adapter->wol & E1000_WUFC_MC)
1838                 wol->wolopts |= WAKE_MCAST;
1839         if (adapter->wol & E1000_WUFC_BC)
1840                 wol->wolopts |= WAKE_BCAST;
1841         if (adapter->wol & E1000_WUFC_MAG)
1842                 wol->wolopts |= WAKE_MAGIC;
1843         if (adapter->wol & E1000_WUFC_LNKC)
1844                 wol->wolopts |= WAKE_PHY;
1845 }
1846
1847 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1848 {
1849         struct e1000_adapter *adapter = netdev_priv(netdev);
1850
1851         if (!(adapter->flags & FLAG_HAS_WOL) ||
1852             !device_can_wakeup(&adapter->pdev->dev) ||
1853             (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1854                               WAKE_MAGIC | WAKE_PHY)))
1855                 return -EOPNOTSUPP;
1856
1857         /* these settings will always override what we currently have */
1858         adapter->wol = 0;
1859
1860         if (wol->wolopts & WAKE_UCAST)
1861                 adapter->wol |= E1000_WUFC_EX;
1862         if (wol->wolopts & WAKE_MCAST)
1863                 adapter->wol |= E1000_WUFC_MC;
1864         if (wol->wolopts & WAKE_BCAST)
1865                 adapter->wol |= E1000_WUFC_BC;
1866         if (wol->wolopts & WAKE_MAGIC)
1867                 adapter->wol |= E1000_WUFC_MAG;
1868         if (wol->wolopts & WAKE_PHY)
1869                 adapter->wol |= E1000_WUFC_LNKC;
1870
1871         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1872
1873         return 0;
1874 }
1875
1876 static int e1000_set_phys_id(struct net_device *netdev,
1877                              enum ethtool_phys_id_state state)
1878 {
1879         struct e1000_adapter *adapter = netdev_priv(netdev);
1880         struct e1000_hw *hw = &adapter->hw;
1881
1882         switch (state) {
1883         case ETHTOOL_ID_ACTIVE:
1884                 if (!hw->mac.ops.blink_led)
1885                         return 2;       /* cycle on/off twice per second */
1886
1887                 hw->mac.ops.blink_led(hw);
1888                 break;
1889
1890         case ETHTOOL_ID_INACTIVE:
1891                 if (hw->phy.type == e1000_phy_ife)
1892                         e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1893                 hw->mac.ops.led_off(hw);
1894                 hw->mac.ops.cleanup_led(hw);
1895                 break;
1896
1897         case ETHTOOL_ID_ON:
1898                 adapter->hw.mac.ops.led_on(&adapter->hw);
1899                 break;
1900
1901         case ETHTOOL_ID_OFF:
1902                 adapter->hw.mac.ops.led_off(&adapter->hw);
1903                 break;
1904         }
1905         return 0;
1906 }
1907
1908 static int e1000_get_coalesce(struct net_device *netdev,
1909                               struct ethtool_coalesce *ec)
1910 {
1911         struct e1000_adapter *adapter = netdev_priv(netdev);
1912
1913         if (adapter->itr_setting <= 4)
1914                 ec->rx_coalesce_usecs = adapter->itr_setting;
1915         else
1916                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1917
1918         return 0;
1919 }
1920
1921 static int e1000_set_coalesce(struct net_device *netdev,
1922                               struct ethtool_coalesce *ec)
1923 {
1924         struct e1000_adapter *adapter = netdev_priv(netdev);
1925         struct e1000_hw *hw = &adapter->hw;
1926
1927         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1928             ((ec->rx_coalesce_usecs > 4) &&
1929              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1930             (ec->rx_coalesce_usecs == 2))
1931                 return -EINVAL;
1932
1933         if (ec->rx_coalesce_usecs == 4) {
1934                 adapter->itr = adapter->itr_setting = 4;
1935         } else if (ec->rx_coalesce_usecs <= 3) {
1936                 adapter->itr = 20000;
1937                 adapter->itr_setting = ec->rx_coalesce_usecs;
1938         } else {
1939                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1940                 adapter->itr_setting = adapter->itr & ~3;
1941         }
1942
1943         if (adapter->itr_setting != 0)
1944                 ew32(ITR, 1000000000 / (adapter->itr * 256));
1945         else
1946                 ew32(ITR, 0);
1947
1948         return 0;
1949 }
1950
1951 static int e1000_nway_reset(struct net_device *netdev)
1952 {
1953         struct e1000_adapter *adapter = netdev_priv(netdev);
1954
1955         if (!netif_running(netdev))
1956                 return -EAGAIN;
1957
1958         if (!adapter->hw.mac.autoneg)
1959                 return -EINVAL;
1960
1961         e1000e_reinit_locked(adapter);
1962
1963         return 0;
1964 }
1965
1966 static void e1000_get_ethtool_stats(struct net_device *netdev,
1967                                     struct ethtool_stats *stats,
1968                                     u64 *data)
1969 {
1970         struct e1000_adapter *adapter = netdev_priv(netdev);
1971         struct rtnl_link_stats64 net_stats;
1972         int i;
1973         char *p = NULL;
1974
1975         e1000e_get_stats64(netdev, &net_stats);
1976         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1977                 switch (e1000_gstrings_stats[i].type) {
1978                 case NETDEV_STATS:
1979                         p = (char *) &net_stats +
1980                                         e1000_gstrings_stats[i].stat_offset;
1981                         break;
1982                 case E1000_STATS:
1983                         p = (char *) adapter +
1984                                         e1000_gstrings_stats[i].stat_offset;
1985                         break;
1986                 default:
1987                         data[i] = 0;
1988                         continue;
1989                 }
1990
1991                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1992                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1993         }
1994 }
1995
1996 static void e1000_get_strings(struct net_device *netdev, u32 stringset,
1997                               u8 *data)
1998 {
1999         u8 *p = data;
2000         int i;
2001
2002         switch (stringset) {
2003         case ETH_SS_TEST:
2004                 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
2005                 break;
2006         case ETH_SS_STATS:
2007                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
2008                         memcpy(p, e1000_gstrings_stats[i].stat_string,
2009                                ETH_GSTRING_LEN);
2010                         p += ETH_GSTRING_LEN;
2011                 }
2012                 break;
2013         }
2014 }
2015
2016 static int e1000e_set_flags(struct net_device *netdev, u32 data)
2017 {
2018         struct e1000_adapter *adapter = netdev_priv(netdev);
2019         bool need_reset = false;
2020         int rc;
2021
2022         need_reset = (data & ETH_FLAG_RXVLAN) !=
2023                      (netdev->features & NETIF_F_HW_VLAN_RX);
2024
2025         rc = ethtool_op_set_flags(netdev, data, ETH_FLAG_RXVLAN |
2026                                   ETH_FLAG_TXVLAN);
2027
2028         if (rc)
2029                 return rc;
2030
2031         if (need_reset) {
2032                 if (netif_running(netdev))
2033                         e1000e_reinit_locked(adapter);
2034                 else
2035                         e1000e_reset(adapter);
2036         }
2037
2038         return 0;
2039 }
2040
2041 static const struct ethtool_ops e1000_ethtool_ops = {
2042         .get_settings           = e1000_get_settings,
2043         .set_settings           = e1000_set_settings,
2044         .get_drvinfo            = e1000_get_drvinfo,
2045         .get_regs_len           = e1000_get_regs_len,
2046         .get_regs               = e1000_get_regs,
2047         .get_wol                = e1000_get_wol,
2048         .set_wol                = e1000_set_wol,
2049         .get_msglevel           = e1000_get_msglevel,
2050         .set_msglevel           = e1000_set_msglevel,
2051         .nway_reset             = e1000_nway_reset,
2052         .get_link               = ethtool_op_get_link,
2053         .get_eeprom_len         = e1000_get_eeprom_len,
2054         .get_eeprom             = e1000_get_eeprom,
2055         .set_eeprom             = e1000_set_eeprom,
2056         .get_ringparam          = e1000_get_ringparam,
2057         .set_ringparam          = e1000_set_ringparam,
2058         .get_pauseparam         = e1000_get_pauseparam,
2059         .set_pauseparam         = e1000_set_pauseparam,
2060         .get_rx_csum            = e1000_get_rx_csum,
2061         .set_rx_csum            = e1000_set_rx_csum,
2062         .get_tx_csum            = e1000_get_tx_csum,
2063         .set_tx_csum            = e1000_set_tx_csum,
2064         .get_sg                 = ethtool_op_get_sg,
2065         .set_sg                 = ethtool_op_set_sg,
2066         .get_tso                = ethtool_op_get_tso,
2067         .set_tso                = e1000_set_tso,
2068         .self_test              = e1000_diag_test,
2069         .get_strings            = e1000_get_strings,
2070         .set_phys_id            = e1000_set_phys_id,
2071         .get_ethtool_stats      = e1000_get_ethtool_stats,
2072         .get_sset_count         = e1000e_get_sset_count,
2073         .get_coalesce           = e1000_get_coalesce,
2074         .set_coalesce           = e1000_set_coalesce,
2075         .get_flags              = ethtool_op_get_flags,
2076         .set_flags              = e1000e_set_flags,
2077 };
2078
2079 void e1000e_set_ethtool_ops(struct net_device *netdev)
2080 {
2081         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
2082 }