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   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2009 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/ethtool.h>
  33 #include <linux/pci.h>
  34 #include <linux/delay.h>
  35
  36 #include "e1000.h"
  37
  38 enum {NETDEV_STATS, E1000_STATS};
  39
  40 struct e1000_stats {
  41         char stat_string[ETH_GSTRING_LEN];
  42         int type;
  43         int sizeof_stat;
  44         int stat_offset;
  45 };
  46
  47 #define E1000_STAT(m)           E1000_STATS, \
  48                                 sizeof(((struct e1000_adapter *)0)->m), \
  49                                 offsetof(struct e1000_adapter, m)
  50 #define E1000_NETDEV_STAT(m)    NETDEV_STATS, \
  51                                 sizeof(((struct net_device *)0)->m), \
  52                                 offsetof(struct net_device, m)
  53
  54 static const struct e1000_stats e1000_gstrings_stats[] = {
  55         { "rx_packets", E1000_STAT(stats.gprc) },
  56         { "tx_packets", E1000_STAT(stats.gptc) },
  57         { "rx_bytes", E1000_STAT(stats.gorc) },
  58         { "tx_bytes", E1000_STAT(stats.gotc) },
  59         { "rx_broadcast", E1000_STAT(stats.bprc) },
  60         { "tx_broadcast", E1000_STAT(stats.bptc) },
  61         { "rx_multicast", E1000_STAT(stats.mprc) },
  62         { "tx_multicast", E1000_STAT(stats.mptc) },
  63         { "rx_errors", E1000_NETDEV_STAT(stats.rx_errors) },
  64         { "tx_errors", E1000_NETDEV_STAT(stats.tx_errors) },
  65         { "tx_dropped", E1000_NETDEV_STAT(stats.tx_dropped) },
  66         { "multicast", E1000_STAT(stats.mprc) },
  67         { "collisions", E1000_STAT(stats.colc) },
  68         { "rx_length_errors", E1000_NETDEV_STAT(stats.rx_length_errors) },
  69         { "rx_over_errors", E1000_NETDEV_STAT(stats.rx_over_errors) },
  70         { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
  71         { "rx_frame_errors", E1000_NETDEV_STAT(stats.rx_frame_errors) },
  72         { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
  73         { "rx_missed_errors", E1000_STAT(stats.mpc) },
  74         { "tx_aborted_errors", E1000_STAT(stats.ecol) },
  75         { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
  76         { "tx_fifo_errors", E1000_NETDEV_STAT(stats.tx_fifo_errors) },
  77         { "tx_heartbeat_errors", E1000_NETDEV_STAT(stats.tx_heartbeat_errors) },
  78         { "tx_window_errors", E1000_STAT(stats.latecol) },
  79         { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
  80         { "tx_deferred_ok", E1000_STAT(stats.dc) },
  81         { "tx_single_coll_ok", E1000_STAT(stats.scc) },
  82         { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
  83         { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
  84         { "tx_restart_queue", E1000_STAT(restart_queue) },
  85         { "rx_long_length_errors", E1000_STAT(stats.roc) },
  86         { "rx_short_length_errors", E1000_STAT(stats.ruc) },
  87         { "rx_align_errors", E1000_STAT(stats.algnerrc) },
  88         { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
  89         { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
  90         { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
  91         { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
  92         { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
  93         { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
  94         { "rx_long_byte_count", E1000_STAT(stats.gorc) },
  95         { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
  96         { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
  97         { "rx_header_split", E1000_STAT(rx_hdr_split) },
  98         { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
  99         { "tx_smbus", E1000_STAT(stats.mgptc) },
 100         { "rx_smbus", E1000_STAT(stats.mgprc) },
 101         { "dropped_smbus", E1000_STAT(stats.mgpdc) },
 102         { "rx_dma_failed", E1000_STAT(rx_dma_failed) },
 103         { "tx_dma_failed", E1000_STAT(tx_dma_failed) },
 104 };
 105
 106 #define E1000_GLOBAL_STATS_LEN  ARRAY_SIZE(e1000_gstrings_stats)
 107 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
 108 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 109         "Register test  (offline)", "Eeprom test    (offline)",
 110         "Interrupt test (offline)", "Loopback test  (offline)",
 111         "Link test   (on/offline)"
 112 };
 113 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 114
 115 static int e1000_get_settings(struct net_device *netdev,
 116                               struct ethtool_cmd *ecmd)
 117 {
 118         struct e1000_adapter *adapter = netdev_priv(netdev);
 119         struct e1000_hw *hw = &adapter->hw;
 120         u32 status;
 121
 122         if (hw->phy.media_type == e1000_media_type_copper) {
 123
 124                 ecmd->supported = (SUPPORTED_10baseT_Half |
 125                                    SUPPORTED_10baseT_Full |
 126                                    SUPPORTED_100baseT_Half |
 127                                    SUPPORTED_100baseT_Full |
 128                                    SUPPORTED_1000baseT_Full |
 129                                    SUPPORTED_Autoneg |
 130                                    SUPPORTED_TP);
 131                 if (hw->phy.type == e1000_phy_ife)
 132                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 133                 ecmd->advertising = ADVERTISED_TP;
 134
 135                 if (hw->mac.autoneg == 1) {
 136                         ecmd->advertising |= ADVERTISED_Autoneg;
 137                         /* the e1000 autoneg seems to match ethtool nicely */
 138                         ecmd->advertising |= hw->phy.autoneg_advertised;
 139                 }
 140
 141                 ecmd->port = PORT_TP;
 142                 ecmd->phy_address = hw->phy.addr;
 143                 ecmd->transceiver = XCVR_INTERNAL;
 144
 145         } else {
 146                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 147                                      SUPPORTED_FIBRE |
 148                                      SUPPORTED_Autoneg);
 149
 150                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 151                                      ADVERTISED_FIBRE |
 152                                      ADVERTISED_Autoneg);
 153
 154                 ecmd->port = PORT_FIBRE;
 155                 ecmd->transceiver = XCVR_EXTERNAL;
 156         }
 157
 158         status = er32(STATUS);
 159         if (status & E1000_STATUS_LU) {
 160                 if (status & E1000_STATUS_SPEED_1000)
 161                         ecmd->speed = 1000;
 162                 else if (status & E1000_STATUS_SPEED_100)
 163                         ecmd->speed = 100;
 164                 else
 165                         ecmd->speed = 10;
 166
 167                 if (status & E1000_STATUS_FD)
 168                         ecmd->duplex = DUPLEX_FULL;
 169                 else
 170                         ecmd->duplex = DUPLEX_HALF;
 171         } else {
 172                 ecmd->speed = -1;
 173                 ecmd->duplex = -1;
 174         }
 175
 176         ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 177                          hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 178
 179         /* MDI-X => 2; MDI =>1; Invalid =>0 */
 180         if ((hw->phy.media_type == e1000_media_type_copper) &&
 181             !hw->mac.get_link_status)
 182                 ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
 183                                                       ETH_TP_MDI;
 184         else
 185                 ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 186
 187         return 0;
 188 }
 189
 190 static u32 e1000_get_link(struct net_device *netdev)
 191 {
 192         struct e1000_adapter *adapter = netdev_priv(netdev);
 193         struct e1000_mac_info *mac = &adapter->hw.mac;
 194
 195         /*
 196          * If the link is not reported up to netdev, interrupts are disabled,
 197          * and so the physical link state may have changed since we last
 198          * looked. Set get_link_status to make sure that the true link
 199          * state is interrogated, rather than pulling a cached and possibly
 200          * stale link state from the driver.
 201          */
 202         if (!netif_carrier_ok(netdev))
 203                 mac->get_link_status = 1;
 204
 205         return e1000e_has_link(adapter);
 206 }
 207
 208 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
 209 {
 210         struct e1000_mac_info *mac = &adapter->hw.mac;
 211
 212         mac->autoneg = 0;
 213
 214         /* Fiber NICs only allow 1000 gbps Full duplex */
 215         if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 216                 spddplx != (SPEED_1000 + DUPLEX_FULL)) {
 217                 e_err("Unsupported Speed/Duplex configuration\n");
 218                 return -EINVAL;
 219         }
 220
 221         switch (spddplx) {
 222         case SPEED_10 + DUPLEX_HALF:
 223                 mac->forced_speed_duplex = ADVERTISE_10_HALF;
 224                 break;
 225         case SPEED_10 + DUPLEX_FULL:
 226                 mac->forced_speed_duplex = ADVERTISE_10_FULL;
 227                 break;
 228         case SPEED_100 + DUPLEX_HALF:
 229                 mac->forced_speed_duplex = ADVERTISE_100_HALF;
 230                 break;
 231         case SPEED_100 + DUPLEX_FULL:
 232                 mac->forced_speed_duplex = ADVERTISE_100_FULL;
 233                 break;
 234         case SPEED_1000 + DUPLEX_FULL:
 235                 mac->autoneg = 1;
 236                 adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 237                 break;
 238         case SPEED_1000 + DUPLEX_HALF: /* not supported */
 239         default:
 240                 e_err("Unsupported Speed/Duplex configuration\n");
 241                 return -EINVAL;
 242         }
 243         return 0;
 244 }
 245
 246 static int e1000_set_settings(struct net_device *netdev,
 247                               struct ethtool_cmd *ecmd)
 248 {
 249         struct e1000_adapter *adapter = netdev_priv(netdev);
 250         struct e1000_hw *hw = &adapter->hw;
 251
 252         /*
 253          * When SoL/IDER sessions are active, autoneg/speed/duplex
 254          * cannot be changed
 255          */
 256         if (e1000_check_reset_block(hw)) {
 257                 e_err("Cannot change link characteristics when SoL/IDER is "
 258                       "active.\n");
 259                 return -EINVAL;
 260         }
 261
 262         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 263                 msleep(1);
 264
 265         if (ecmd->autoneg == AUTONEG_ENABLE) {
 266                 hw->mac.autoneg = 1;
 267                 if (hw->phy.media_type == e1000_media_type_fiber)
 268                         hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 269                                                      ADVERTISED_FIBRE |
 270                                                      ADVERTISED_Autoneg;
 271                 else
 272                         hw->phy.autoneg_advertised = ecmd->advertising |
 273                                                      ADVERTISED_TP |
 274                                                      ADVERTISED_Autoneg;
 275                 ecmd->advertising = hw->phy.autoneg_advertised;
 276                 if (adapter->fc_autoneg)
 277                         hw->fc.requested_mode = e1000_fc_default;
 278         } else {
 279                 if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
 280                         clear_bit(__E1000_RESETTING, &adapter->state);
 281                         return -EINVAL;
 282                 }
 283         }
 284
 285         /* reset the link */
 286
 287         if (netif_running(adapter->netdev)) {
 288                 e1000e_down(adapter);
 289                 e1000e_up(adapter);
 290         } else {
 291                 e1000e_reset(adapter);
 292         }
 293
 294         clear_bit(__E1000_RESETTING, &adapter->state);
 295         return 0;
 296 }
 297
 298 static void e1000_get_pauseparam(struct net_device *netdev,
 299                                  struct ethtool_pauseparam *pause)
 300 {
 301         struct e1000_adapter *adapter = netdev_priv(netdev);
 302         struct e1000_hw *hw = &adapter->hw;
 303
 304         pause->autoneg =
 305                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 306
 307         if (hw->fc.current_mode == e1000_fc_rx_pause) {
 308                 pause->rx_pause = 1;
 309         } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 310                 pause->tx_pause = 1;
 311         } else if (hw->fc.current_mode == e1000_fc_full) {
 312                 pause->rx_pause = 1;
 313                 pause->tx_pause = 1;
 314         }
 315 }
 316
 317 static int e1000_set_pauseparam(struct net_device *netdev,
 318                                 struct ethtool_pauseparam *pause)
 319 {
 320         struct e1000_adapter *adapter = netdev_priv(netdev);
 321         struct e1000_hw *hw = &adapter->hw;
 322         int retval = 0;
 323
 324         adapter->fc_autoneg = pause->autoneg;
 325
 326         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 327                 msleep(1);
 328
 329         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 330                 hw->fc.requested_mode = e1000_fc_default;
 331                 if (netif_running(adapter->netdev)) {
 332                         e1000e_down(adapter);
 333                         e1000e_up(adapter);
 334                 } else {
 335                         e1000e_reset(adapter);
 336                 }
 337         } else {
 338                 if (pause->rx_pause && pause->tx_pause)
 339                         hw->fc.requested_mode = e1000_fc_full;
 340                 else if (pause->rx_pause && !pause->tx_pause)
 341                         hw->fc.requested_mode = e1000_fc_rx_pause;
 342                 else if (!pause->rx_pause && pause->tx_pause)
 343                         hw->fc.requested_mode = e1000_fc_tx_pause;
 344                 else if (!pause->rx_pause && !pause->tx_pause)
 345                         hw->fc.requested_mode = e1000_fc_none;
 346
 347                 hw->fc.current_mode = hw->fc.requested_mode;
 348
 349                 if (hw->phy.media_type == e1000_media_type_fiber) {
 350                         retval = hw->mac.ops.setup_link(hw);
 351                         /* implicit goto out */
 352                 } else {
 353                         retval = e1000e_force_mac_fc(hw);
 354                         if (retval)
 355                                 goto out;
 356                         e1000e_set_fc_watermarks(hw);
 357                 }
 358         }
 359
 360 out:
 361         clear_bit(__E1000_RESETTING, &adapter->state);
 362         return retval;
 363 }
 364
 365 static u32 e1000_get_rx_csum(struct net_device *netdev)
 366 {
 367         struct e1000_adapter *adapter = netdev_priv(netdev);
 368         return (adapter->flags & FLAG_RX_CSUM_ENABLED);
 369 }
 370
 371 static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
 372 {
 373         struct e1000_adapter *adapter = netdev_priv(netdev);
 374
 375         if (data)
 376                 adapter->flags |= FLAG_RX_CSUM_ENABLED;
 377         else
 378                 adapter->flags &= ~FLAG_RX_CSUM_ENABLED;
 379
 380         if (netif_running(netdev))
 381                 e1000e_reinit_locked(adapter);
 382         else
 383                 e1000e_reset(adapter);
 384         return 0;
 385 }
 386
 387 static u32 e1000_get_tx_csum(struct net_device *netdev)
 388 {
 389         return ((netdev->features & NETIF_F_HW_CSUM) != 0);
 390 }
 391
 392 static int e1000_set_tx_csum(struct net_device *netdev, u32 data)
 393 {
 394         if (data)
 395                 netdev->features |= NETIF_F_HW_CSUM;
 396         else
 397                 netdev->features &= ~NETIF_F_HW_CSUM;
 398
 399         return 0;
 400 }
 401
 402 static int e1000_set_tso(struct net_device *netdev, u32 data)
 403 {
 404         struct e1000_adapter *adapter = netdev_priv(netdev);
 405
 406         if (data) {
 407                 netdev->features |= NETIF_F_TSO;
 408                 netdev->features |= NETIF_F_TSO6;
 409         } else {
 410                 netdev->features &= ~NETIF_F_TSO;
 411                 netdev->features &= ~NETIF_F_TSO6;
 412         }
 413
 414         e_info("TSO is %s\n", data ? "Enabled" : "Disabled");
 415         adapter->flags |= FLAG_TSO_FORCE;
 416         return 0;
 417 }
 418
 419 static u32 e1000_get_msglevel(struct net_device *netdev)
 420 {
 421         struct e1000_adapter *adapter = netdev_priv(netdev);
 422         return adapter->msg_enable;
 423 }
 424
 425 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 426 {
 427         struct e1000_adapter *adapter = netdev_priv(netdev);
 428         adapter->msg_enable = data;
 429 }
 430
 431 static int e1000_get_regs_len(struct net_device *netdev)
 432 {
 433 #define E1000_REGS_LEN 32 /* overestimate */
 434         return E1000_REGS_LEN * sizeof(u32);
 435 }
 436
 437 static void e1000_get_regs(struct net_device *netdev,
 438                            struct ethtool_regs *regs, void *p)
 439 {
 440         struct e1000_adapter *adapter = netdev_priv(netdev);
 441         struct e1000_hw *hw = &adapter->hw;
 442         u32 *regs_buff = p;
 443         u16 phy_data;
 444         u8 revision_id;
 445
 446         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 447
 448         pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);
 449
 450         regs->version = (1 << 24) | (revision_id << 16) | adapter->pdev->device;
 451
 452         regs_buff[0]  = er32(CTRL);
 453         regs_buff[1]  = er32(STATUS);
 454
 455         regs_buff[2]  = er32(RCTL);
 456         regs_buff[3]  = er32(RDLEN);
 457         regs_buff[4]  = er32(RDH);
 458         regs_buff[5]  = er32(RDT);
 459         regs_buff[6]  = er32(RDTR);
 460
 461         regs_buff[7]  = er32(TCTL);
 462         regs_buff[8]  = er32(TDLEN);
 463         regs_buff[9]  = er32(TDH);
 464         regs_buff[10] = er32(TDT);
 465         regs_buff[11] = er32(TIDV);
 466
 467         regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
 468
 469         /* ethtool doesn't use anything past this point, so all this
 470          * code is likely legacy junk for apps that may or may not
 471          * exist */
 472         if (hw->phy.type == e1000_phy_m88) {
 473                 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 474                 regs_buff[13] = (u32)phy_data; /* cable length */
 475                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 476                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 477                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 478                 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 479                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 480                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 481                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 482                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 483                 /* phy receive errors */
 484                 regs_buff[22] = adapter->phy_stats.receive_errors;
 485                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 486         }
 487         regs_buff[21] = 0; /* was idle_errors */
 488         e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);
 489         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 490         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 491 }
 492
 493 static int e1000_get_eeprom_len(struct net_device *netdev)
 494 {
 495         struct e1000_adapter *adapter = netdev_priv(netdev);
 496         return adapter->hw.nvm.word_size * 2;
 497 }
 498
 499 static int e1000_get_eeprom(struct net_device *netdev,
 500                             struct ethtool_eeprom *eeprom, u8 *bytes)
 501 {
 502         struct e1000_adapter *adapter = netdev_priv(netdev);
 503         struct e1000_hw *hw = &adapter->hw;
 504         u16 *eeprom_buff;
 505         int first_word;
 506         int last_word;
 507         int ret_val = 0;
 508         u16 i;
 509
 510         if (eeprom->len == 0)
 511                 return -EINVAL;
 512
 513         eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 514
 515         first_word = eeprom->offset >> 1;
 516         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 517
 518         eeprom_buff = kmalloc(sizeof(u16) *
 519                         (last_word - first_word + 1), GFP_KERNEL);
 520         if (!eeprom_buff)
 521                 return -ENOMEM;
 522
 523         if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 524                 ret_val = e1000_read_nvm(hw, first_word,
 525                                          last_word - first_word + 1,
 526                                          eeprom_buff);
 527         } else {
 528                 for (i = 0; i < last_word - first_word + 1; i++) {
 529                         ret_val = e1000_read_nvm(hw, first_word + i, 1,
 530                                                       &eeprom_buff[i]);
 531                         if (ret_val)
 532                                 break;
 533                 }
 534         }
 535
 536         if (ret_val) {
 537                 /* a read error occurred, throw away the result */
 538                 memset(eeprom_buff, 0xff, sizeof(u16) *
 539                        (last_word - first_word + 1));
 540         } else {
 541                 /* Device's eeprom is always little-endian, word addressable */
 542                 for (i = 0; i < last_word - first_word + 1; i++)
 543                         le16_to_cpus(&eeprom_buff[i]);
 544         }
 545
 546         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 547         kfree(eeprom_buff);
 548
 549         return ret_val;
 550 }
 551
 552 static int e1000_set_eeprom(struct net_device *netdev,
 553                             struct ethtool_eeprom *eeprom, u8 *bytes)
 554 {
 555         struct e1000_adapter *adapter = netdev_priv(netdev);
 556         struct e1000_hw *hw = &adapter->hw;
 557         u16 *eeprom_buff;
 558         void *ptr;
 559         int max_len;
 560         int first_word;
 561         int last_word;
 562         int ret_val = 0;
 563         u16 i;
 564
 565         if (eeprom->len == 0)
 566                 return -EOPNOTSUPP;
 567
 568         if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 569                 return -EFAULT;
 570
 571         if (adapter->flags & FLAG_READ_ONLY_NVM)
 572                 return -EINVAL;
 573
 574         max_len = hw->nvm.word_size * 2;
 575
 576         first_word = eeprom->offset >> 1;
 577         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 578         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 579         if (!eeprom_buff)
 580                 return -ENOMEM;
 581
 582         ptr = (void *)eeprom_buff;
 583
 584         if (eeprom->offset & 1) {
 585                 /* need read/modify/write of first changed EEPROM word */
 586                 /* only the second byte of the word is being modified */
 587                 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 588                 ptr++;
 589         }
 590         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0))
 591                 /* need read/modify/write of last changed EEPROM word */
 592                 /* only the first byte of the word is being modified */
 593                 ret_val = e1000_read_nvm(hw, last_word, 1,
 594                                   &eeprom_buff[last_word - first_word]);
 595
 596         if (ret_val)
 597                 goto out;
 598
 599         /* Device's eeprom is always little-endian, word addressable */
 600         for (i = 0; i < last_word - first_word + 1; i++)
 601                 le16_to_cpus(&eeprom_buff[i]);
 602
 603         memcpy(ptr, bytes, eeprom->len);
 604
 605         for (i = 0; i < last_word - first_word + 1; i++)
 606                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 607
 608         ret_val = e1000_write_nvm(hw, first_word,
 609                                   last_word - first_word + 1, eeprom_buff);
 610
 611         if (ret_val)
 612                 goto out;
 613
 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         kfree(eeprom_buff);
 626         return ret_val;
 627 }
 628
 629 static void e1000_get_drvinfo(struct net_device *netdev,
 630                               struct ethtool_drvinfo *drvinfo)
 631 {
 632         struct e1000_adapter *adapter = netdev_priv(netdev);
 633         char firmware_version[32];
 634
 635         strncpy(drvinfo->driver,  e1000e_driver_name, 32);
 636         strncpy(drvinfo->version, e1000e_driver_version, 32);
 637
 638         /*
 639          * EEPROM image version # is reported as firmware version # for
 640          * PCI-E controllers
 641          */
 642         sprintf(firmware_version, "%d.%d-%d",
 643                 (adapter->eeprom_vers & 0xF000) >> 12,
 644                 (adapter->eeprom_vers & 0x0FF0) >> 4,
 645                 (adapter->eeprom_vers & 0x000F));
 646
 647         strncpy(drvinfo->fw_version, firmware_version, 32);
 648         strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 649         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 650         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 651 }
 652
 653 static void e1000_get_ringparam(struct net_device *netdev,
 654                                 struct ethtool_ringparam *ring)
 655 {
 656         struct e1000_adapter *adapter = netdev_priv(netdev);
 657         struct e1000_ring *tx_ring = adapter->tx_ring;
 658         struct e1000_ring *rx_ring = adapter->rx_ring;
 659
 660         ring->rx_max_pending = E1000_MAX_RXD;
 661         ring->tx_max_pending = E1000_MAX_TXD;
 662         ring->rx_mini_max_pending = 0;
 663         ring->rx_jumbo_max_pending = 0;
 664         ring->rx_pending = rx_ring->count;
 665         ring->tx_pending = tx_ring->count;
 666         ring->rx_mini_pending = 0;
 667         ring->rx_jumbo_pending = 0;
 668 }
 669
 670 static int e1000_set_ringparam(struct net_device *netdev,
 671                                struct ethtool_ringparam *ring)
 672 {
 673         struct e1000_adapter *adapter = netdev_priv(netdev);
 674         struct e1000_ring *tx_ring, *tx_old;
 675         struct e1000_ring *rx_ring, *rx_old;
 676         int err;
 677
 678         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 679                 return -EINVAL;
 680
 681         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 682                 msleep(1);
 683
 684         if (netif_running(adapter->netdev))
 685                 e1000e_down(adapter);
 686
 687         tx_old = adapter->tx_ring;
 688         rx_old = adapter->rx_ring;
 689
 690         err = -ENOMEM;
 691         tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
 692         if (!tx_ring)
 693                 goto err_alloc_tx;
 694         /*
 695          * use a memcpy to save any previously configured
 696          * items like napi structs from having to be
 697          * reinitialized
 698          */
 699         memcpy(tx_ring, tx_old, sizeof(struct e1000_ring));
 700
 701         rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
 702         if (!rx_ring)
 703                 goto err_alloc_rx;
 704         memcpy(rx_ring, rx_old, sizeof(struct e1000_ring));
 705
 706         adapter->tx_ring = tx_ring;
 707         adapter->rx_ring = rx_ring;
 708
 709         rx_ring->count = max(ring->rx_pending, (u32)E1000_MIN_RXD);
 710         rx_ring->count = min(rx_ring->count, (u32)(E1000_MAX_RXD));
 711         rx_ring->count = ALIGN(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 712
 713         tx_ring->count = max(ring->tx_pending, (u32)E1000_MIN_TXD);
 714         tx_ring->count = min(tx_ring->count, (u32)(E1000_MAX_TXD));
 715         tx_ring->count = ALIGN(tx_ring->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 716
 717         if (netif_running(adapter->netdev)) {
 718                 /* Try to get new resources before deleting old */
 719                 err = e1000e_setup_rx_resources(adapter);
 720                 if (err)
 721                         goto err_setup_rx;
 722                 err = e1000e_setup_tx_resources(adapter);
 723                 if (err)
 724                         goto err_setup_tx;
 725
 726                 /*
 727                  * restore the old in order to free it,
 728                  * then add in the new
 729                  */
 730                 adapter->rx_ring = rx_old;
 731                 adapter->tx_ring = tx_old;
 732                 e1000e_free_rx_resources(adapter);
 733                 e1000e_free_tx_resources(adapter);
 734                 kfree(tx_old);
 735                 kfree(rx_old);
 736                 adapter->rx_ring = rx_ring;
 737                 adapter->tx_ring = tx_ring;
 738                 err = e1000e_up(adapter);
 739                 if (err)
 740                         goto err_setup;
 741         }
 742
 743         clear_bit(__E1000_RESETTING, &adapter->state);
 744         return 0;
 745 err_setup_tx:
 746         e1000e_free_rx_resources(adapter);
 747 err_setup_rx:
 748         adapter->rx_ring = rx_old;
 749         adapter->tx_ring = tx_old;
 750         kfree(rx_ring);
 751 err_alloc_rx:
 752         kfree(tx_ring);
 753 err_alloc_tx:
 754         e1000e_up(adapter);
 755 err_setup:
 756         clear_bit(__E1000_RESETTING, &adapter->state);
 757         return err;
 758 }
 759
 760 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 761                              int reg, int offset, u32 mask, u32 write)
 762 {
 763         u32 pat, val;
 764         static const u32 test[] =
 765                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 766         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 767                 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 768                                       (test[pat] & write));
 769                 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 770                 if (val != (test[pat] & write & mask)) {
 771                         e_err("pattern test reg %04X failed: got 0x%08X "
 772                               "expected 0x%08X\n", reg + offset, val,
 773                               (test[pat] & write & mask));
 774                         *data = reg;
 775                         return 1;
 776                 }
 777         }
 778         return 0;
 779 }
 780
 781 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 782                               int reg, u32 mask, u32 write)
 783 {
 784         u32 val;
 785         __ew32(&adapter->hw, reg, write & mask);
 786         val = __er32(&adapter->hw, reg);
 787         if ((write & mask) != (val & mask)) {
 788                 e_err("set/check reg %04X test failed: got 0x%08X "
 789                       "expected 0x%08X\n", reg, (val & mask), (write & mask));
 790                 *data = reg;
 791                 return 1;
 792         }
 793         return 0;
 794 }
 795 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 796         do {                                                                   \
 797                 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 798                         return 1;                                              \
 799         } while (0)
 800 #define REG_PATTERN_TEST(reg, mask, write)                                     \
 801         REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 802
 803 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
 804         do {                                                                   \
 805                 if (reg_set_and_check(adapter, data, reg, mask, write))        \
 806                         return 1;                                              \
 807         } while (0)
 808
 809 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 810 {
 811         struct e1000_hw *hw = &adapter->hw;
 812         struct e1000_mac_info *mac = &adapter->hw.mac;
 813         u32 value;
 814         u32 before;
 815         u32 after;
 816         u32 i;
 817         u32 toggle;
 818         u32 mask;
 819
 820         /*
 821          * The status register is Read Only, so a write should fail.
 822          * Some bits that get toggled are ignored.
 823          */
 824         switch (mac->type) {
 825         /* there are several bits on newer hardware that are r/w */
 826         case e1000_82571:
 827         case e1000_82572:
 828         case e1000_80003es2lan:
 829                 toggle = 0x7FFFF3FF;
 830                 break;
 831         default:
 832                 toggle = 0x7FFFF033;
 833                 break;
 834         }
 835
 836         before = er32(STATUS);
 837         value = (er32(STATUS) & toggle);
 838         ew32(STATUS, toggle);
 839         after = er32(STATUS) & toggle;
 840         if (value != after) {
 841                 e_err("failed STATUS register test got: 0x%08X expected: "
 842                       "0x%08X\n", after, value);
 843                 *data = 1;
 844                 return 1;
 845         }
 846         /* restore previous status */
 847         ew32(STATUS, before);
 848
 849         if (!(adapter->flags & FLAG_IS_ICH)) {
 850                 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 851                 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 852                 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 853                 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 854         }
 855
 856         REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 857         REG_PATTERN_TEST(E1000_RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 858         REG_PATTERN_TEST(E1000_RDLEN, 0x000FFF80, 0x000FFFFF);
 859         REG_PATTERN_TEST(E1000_RDH, 0x0000FFFF, 0x0000FFFF);
 860         REG_PATTERN_TEST(E1000_RDT, 0x0000FFFF, 0x0000FFFF);
 861         REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 862         REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 863         REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 864         REG_PATTERN_TEST(E1000_TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 865         REG_PATTERN_TEST(E1000_TDLEN, 0x000FFF80, 0x000FFFFF);
 866
 867         REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 868
 869         before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 870         REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 871         REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 872
 873         REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 874         REG_PATTERN_TEST(E1000_RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 875         if (!(adapter->flags & FLAG_IS_ICH))
 876                 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 877         REG_PATTERN_TEST(E1000_TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 878         REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 879         mask = 0x8003FFFF;
 880         switch (mac->type) {
 881         case e1000_ich10lan:
 882         case e1000_pchlan:
 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         msleep(10);
 968
 969         /* Test each interrupt */
 970         for (i = 0; i < 10; i++) {
 971                 /* Interrupt to test */
 972                 mask = 1 << i;
 973
 974                 if (adapter->flags & FLAG_IS_ICH) {
 975                         switch (mask) {
 976                         case E1000_ICR_RXSEQ:
 977                                 continue;
 978                         case 0x00000100:
 979                                 if (adapter->hw.mac.type == e1000_ich8lan ||
 980                                     adapter->hw.mac.type == e1000_ich9lan)
 981                                         continue;
 982                                 break;
 983                         default:
 984                                 break;
 985                         }
 986                 }
 987
 988                 if (!shared_int) {
 989                         /*
 990                          * Disable the interrupt to be reported in
 991                          * the cause register and then force the same
 992                          * interrupt and see if one gets posted.  If
 993                          * an interrupt was posted to the bus, the
 994                          * test failed.
 995                          */
 996                         adapter->test_icr = 0;
 997                         ew32(IMC, mask);
 998                         ew32(ICS, mask);
 999                         msleep(10);
1000
1001                         if (adapter->test_icr & mask) {
1002                                 *data = 3;
1003                                 break;
1004                         }
1005                 }
1006
1007                 /*
1008                  * Enable the interrupt to be reported in
1009                  * the cause register and then force the same
1010                  * interrupt and see if one gets posted.  If
1011                  * an interrupt was not posted to the bus, the
1012                  * test failed.
1013                  */
1014                 adapter->test_icr = 0;
1015                 ew32(IMS, mask);
1016                 ew32(ICS, mask);
1017                 msleep(10);
1018
1019                 if (!(adapter->test_icr & mask)) {
1020                         *data = 4;
1021                         break;
1022                 }
1023
1024                 if (!shared_int) {
1025                         /*
1026                          * Disable the other interrupts to be reported in
1027                          * the cause register and then force the other
1028                          * interrupts and see if any get posted.  If
1029                          * an interrupt was posted to the bus, the
1030                          * test failed.
1031                          */
1032                         adapter->test_icr = 0;
1033                         ew32(IMC, ~mask & 0x00007FFF);
1034                         ew32(ICS, ~mask & 0x00007FFF);
1035                         msleep(10);
1036
1037                         if (adapter->test_icr) {
1038                                 *data = 5;
1039                                 break;
1040                         }
1041                 }
1042         }
1043
1044         /* Disable all the interrupts */
1045         ew32(IMC, 0xFFFFFFFF);
1046         msleep(10);
1047
1048         /* Unhook test interrupt handler */
1049         free_irq(irq, netdev);
1050
1051 out:
1052         if (int_mode == E1000E_INT_MODE_MSIX) {
1053                 e1000e_reset_interrupt_capability(adapter);
1054                 adapter->int_mode = int_mode;
1055                 e1000e_set_interrupt_capability(adapter);
1056         }
1057
1058         return ret_val;
1059 }
1060
1061 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1062 {
1063         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1064         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1065         struct pci_dev *pdev = adapter->pdev;
1066         int i;
1067
1068         if (tx_ring->desc && tx_ring->buffer_info) {
1069                 for (i = 0; i < tx_ring->count; i++) {
1070                         if (tx_ring->buffer_info[i].dma)
1071                                 pci_unmap_single(pdev,
1072                                         tx_ring->buffer_info[i].dma,
1073                                         tx_ring->buffer_info[i].length,
1074                                         PCI_DMA_TODEVICE);
1075                         if (tx_ring->buffer_info[i].skb)
1076                                 dev_kfree_skb(tx_ring->buffer_info[i].skb);
1077                 }
1078         }
1079
1080         if (rx_ring->desc && rx_ring->buffer_info) {
1081                 for (i = 0; i < rx_ring->count; i++) {
1082                         if (rx_ring->buffer_info[i].dma)
1083                                 pci_unmap_single(pdev,
1084                                         rx_ring->buffer_info[i].dma,
1085                                         2048, PCI_DMA_FROMDEVICE);
1086                         if (rx_ring->buffer_info[i].skb)
1087                                 dev_kfree_skb(rx_ring->buffer_info[i].skb);
1088                 }
1089         }
1090
1091         if (tx_ring->desc) {
1092                 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1093                                   tx_ring->dma);
1094                 tx_ring->desc = NULL;
1095         }
1096         if (rx_ring->desc) {
1097                 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1098                                   rx_ring->dma);
1099                 rx_ring->desc = NULL;
1100         }
1101
1102         kfree(tx_ring->buffer_info);
1103         tx_ring->buffer_info = NULL;
1104         kfree(rx_ring->buffer_info);
1105         rx_ring->buffer_info = NULL;
1106 }
1107
1108 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1109 {
1110         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1111         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1112         struct pci_dev *pdev = adapter->pdev;
1113         struct e1000_hw *hw = &adapter->hw;
1114         u32 rctl;
1115         int i;
1116         int ret_val;
1117
1118         /* Setup Tx descriptor ring and Tx buffers */
1119
1120         if (!tx_ring->count)
1121                 tx_ring->count = E1000_DEFAULT_TXD;
1122
1123         tx_ring->buffer_info = kcalloc(tx_ring->count,
1124                                        sizeof(struct e1000_buffer),
1125                                        GFP_KERNEL);
1126         if (!(tx_ring->buffer_info)) {
1127                 ret_val = 1;
1128                 goto err_nomem;
1129         }
1130
1131         tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1132         tx_ring->size = ALIGN(tx_ring->size, 4096);
1133         tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1134                                            &tx_ring->dma, GFP_KERNEL);
1135         if (!tx_ring->desc) {
1136                 ret_val = 2;
1137                 goto err_nomem;
1138         }
1139         tx_ring->next_to_use = 0;
1140         tx_ring->next_to_clean = 0;
1141
1142         ew32(TDBAL, ((u64) tx_ring->dma & 0x00000000FFFFFFFF));
1143         ew32(TDBAH, ((u64) tx_ring->dma >> 32));
1144         ew32(TDLEN, tx_ring->count * sizeof(struct e1000_tx_desc));
1145         ew32(TDH, 0);
1146         ew32(TDT, 0);
1147         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1148              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1149              E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1150
1151         for (i = 0; i < tx_ring->count; i++) {
1152                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1153                 struct sk_buff *skb;
1154                 unsigned int skb_size = 1024;
1155
1156                 skb = alloc_skb(skb_size, GFP_KERNEL);
1157                 if (!skb) {
1158                         ret_val = 3;
1159                         goto err_nomem;
1160                 }
1161                 skb_put(skb, skb_size);
1162                 tx_ring->buffer_info[i].skb = skb;
1163                 tx_ring->buffer_info[i].length = skb->len;
1164                 tx_ring->buffer_info[i].dma =
1165                         pci_map_single(pdev, skb->data, skb->len,
1166                                        PCI_DMA_TODEVICE);
1167                 if (pci_dma_mapping_error(pdev, tx_ring->buffer_info[i].dma)) {
1168                         ret_val = 4;
1169                         goto err_nomem;
1170                 }
1171                 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1172                 tx_desc->lower.data = cpu_to_le32(skb->len);
1173                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1174                                                    E1000_TXD_CMD_IFCS |
1175                                                    E1000_TXD_CMD_RS);
1176                 tx_desc->upper.data = 0;
1177         }
1178
1179         /* Setup Rx descriptor ring and Rx buffers */
1180
1181         if (!rx_ring->count)
1182                 rx_ring->count = E1000_DEFAULT_RXD;
1183
1184         rx_ring->buffer_info = kcalloc(rx_ring->count,
1185                                        sizeof(struct e1000_buffer),
1186                                        GFP_KERNEL);
1187         if (!(rx_ring->buffer_info)) {
1188                 ret_val = 5;
1189                 goto err_nomem;
1190         }
1191
1192         rx_ring->size = rx_ring->count * sizeof(struct e1000_rx_desc);
1193         rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1194                                            &rx_ring->dma, GFP_KERNEL);
1195         if (!rx_ring->desc) {
1196                 ret_val = 6;
1197                 goto err_nomem;
1198         }
1199         rx_ring->next_to_use = 0;
1200         rx_ring->next_to_clean = 0;
1201
1202         rctl = er32(RCTL);
1203         ew32(RCTL, rctl & ~E1000_RCTL_EN);
1204         ew32(RDBAL, ((u64) rx_ring->dma & 0xFFFFFFFF));
1205         ew32(RDBAH, ((u64) rx_ring->dma >> 32));
1206         ew32(RDLEN, rx_ring->size);
1207         ew32(RDH, 0);
1208         ew32(RDT, 0);
1209         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1210                 E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1211                 E1000_RCTL_SBP | E1000_RCTL_SECRC |
1212                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1213                 (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1214         ew32(RCTL, rctl);
1215
1216         for (i = 0; i < rx_ring->count; i++) {
1217                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rx_ring, i);
1218                 struct sk_buff *skb;
1219
1220                 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1221                 if (!skb) {
1222                         ret_val = 7;
1223                         goto err_nomem;
1224                 }
1225                 skb_reserve(skb, NET_IP_ALIGN);
1226                 rx_ring->buffer_info[i].skb = skb;
1227                 rx_ring->buffer_info[i].dma =
1228                         pci_map_single(pdev, skb->data, 2048,
1229                                        PCI_DMA_FROMDEVICE);
1230                 if (pci_dma_mapping_error(pdev, rx_ring->buffer_info[i].dma)) {
1231                         ret_val = 8;
1232                         goto err_nomem;
1233                 }
1234                 rx_desc->buffer_addr =
1235                         cpu_to_le64(rx_ring->buffer_info[i].dma);
1236                 memset(skb->data, 0x00, skb->len);
1237         }
1238
1239         return 0;
1240
1241 err_nomem:
1242         e1000_free_desc_rings(adapter);
1243         return ret_val;
1244 }
1245
1246 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1247 {
1248         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1249         e1e_wphy(&adapter->hw, 29, 0x001F);
1250         e1e_wphy(&adapter->hw, 30, 0x8FFC);
1251         e1e_wphy(&adapter->hw, 29, 0x001A);
1252         e1e_wphy(&adapter->hw, 30, 0x8FF0);
1253 }
1254
1255 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1256 {
1257         struct e1000_hw *hw = &adapter->hw;
1258         u32 ctrl_reg = 0;
1259         u32 stat_reg = 0;
1260         u16 phy_reg = 0;
1261
1262         hw->mac.autoneg = 0;
1263
1264         /* Workaround: K1 must be disabled for stable 1Gbps operation */
1265         if (hw->mac.type == e1000_pchlan)
1266                 e1000_configure_k1_ich8lan(hw, false);
1267
1268         if (hw->phy.type == e1000_phy_m88) {
1269                 /* Auto-MDI/MDIX Off */
1270                 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1271                 /* reset to update Auto-MDI/MDIX */
1272                 e1e_wphy(hw, PHY_CONTROL, 0x9140);
1273                 /* autoneg off */
1274                 e1e_wphy(hw, PHY_CONTROL, 0x8140);
1275         } else if (hw->phy.type == e1000_phy_gg82563)
1276                 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1277
1278         ctrl_reg = er32(CTRL);
1279
1280         switch (hw->phy.type) {
1281         case e1000_phy_ife:
1282                 /* force 100, set loopback */
1283                 e1e_wphy(hw, PHY_CONTROL, 0x6100);
1284
1285                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1286                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1287                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1288                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1289                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1290                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1291                 break;
1292         case e1000_phy_bm:
1293                 /* Set Default MAC Interface speed to 1GB */
1294                 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1295                 phy_reg &= ~0x0007;
1296                 phy_reg |= 0x006;
1297                 e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1298                 /* Assert SW reset for above settings to take effect */
1299                 e1000e_commit_phy(hw);
1300                 mdelay(1);
1301                 /* Force Full Duplex */
1302                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1303                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1304                 /* Set Link Up (in force link) */
1305                 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1306                 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1307                 /* Force Link */
1308                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1309                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1310                 /* Set Early Link Enable */
1311                 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1312                 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1313                 /* fall through */
1314         default:
1315                 /* force 1000, set loopback */
1316                 e1e_wphy(hw, PHY_CONTROL, 0x4140);
1317                 mdelay(250);
1318
1319                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1320                 ctrl_reg = er32(CTRL);
1321                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1322                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1323                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1324                              E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1325                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1326
1327                 if (adapter->flags & FLAG_IS_ICH)
1328                         ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1329         }
1330
1331         if (hw->phy.media_type == e1000_media_type_copper &&
1332             hw->phy.type == e1000_phy_m88) {
1333                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1334         } else {
1335                 /*
1336                  * Set the ILOS bit on the fiber Nic if half duplex link is
1337                  * detected.
1338                  */
1339                 stat_reg = er32(STATUS);
1340                 if ((stat_reg & E1000_STATUS_FD) == 0)
1341                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1342         }
1343
1344         ew32(CTRL, ctrl_reg);
1345
1346         /*
1347          * Disable the receiver on the PHY so when a cable is plugged in, the
1348          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1349          */
1350         if (hw->phy.type == e1000_phy_m88)
1351                 e1000_phy_disable_receiver(adapter);
1352
1353         udelay(500);
1354
1355         return 0;
1356 }
1357
1358 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1359 {
1360         struct e1000_hw *hw = &adapter->hw;
1361         u32 ctrl = er32(CTRL);
1362         int link = 0;
1363
1364         /* special requirements for 82571/82572 fiber adapters */
1365
1366         /*
1367          * jump through hoops to make sure link is up because serdes
1368          * link is hardwired up
1369          */
1370         ctrl |= E1000_CTRL_SLU;
1371         ew32(CTRL, ctrl);
1372
1373         /* disable autoneg */
1374         ctrl = er32(TXCW);
1375         ctrl &= ~(1 << 31);
1376         ew32(TXCW, ctrl);
1377
1378         link = (er32(STATUS) & E1000_STATUS_LU);
1379
1380         if (!link) {
1381                 /* set invert loss of signal */
1382                 ctrl = er32(CTRL);
1383                 ctrl |= E1000_CTRL_ILOS;
1384                 ew32(CTRL, ctrl);
1385         }
1386
1387         /*
1388          * special write to serdes control register to enable SerDes analog
1389          * loopback
1390          */
1391 #define E1000_SERDES_LB_ON 0x410
1392         ew32(SCTL, E1000_SERDES_LB_ON);
1393         msleep(10);
1394
1395         return 0;
1396 }
1397
1398 /* only call this for fiber/serdes connections to es2lan */
1399 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1400 {
1401         struct e1000_hw *hw = &adapter->hw;
1402         u32 ctrlext = er32(CTRL_EXT);
1403         u32 ctrl = er32(CTRL);
1404
1405         /*
1406          * save CTRL_EXT to restore later, reuse an empty variable (unused
1407          * on mac_type 80003es2lan)
1408          */
1409         adapter->tx_fifo_head = ctrlext;
1410
1411         /* clear the serdes mode bits, putting the device into mac loopback */
1412         ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1413         ew32(CTRL_EXT, ctrlext);
1414
1415         /* force speed to 1000/FD, link up */
1416         ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1417         ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1418                  E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1419         ew32(CTRL, ctrl);
1420
1421         /* set mac loopback */
1422         ctrl = er32(RCTL);
1423         ctrl |= E1000_RCTL_LBM_MAC;
1424         ew32(RCTL, ctrl);
1425
1426         /* set testing mode parameters (no need to reset later) */
1427 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1428 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1429         ew32(KMRNCTRLSTA,
1430              (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1431
1432         return 0;
1433 }
1434
1435 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1436 {
1437         struct e1000_hw *hw = &adapter->hw;
1438         u32 rctl;
1439
1440         if (hw->phy.media_type == e1000_media_type_fiber ||
1441             hw->phy.media_type == e1000_media_type_internal_serdes) {
1442                 switch (hw->mac.type) {
1443                 case e1000_80003es2lan:
1444                         return e1000_set_es2lan_mac_loopback(adapter);
1445                         break;
1446                 case e1000_82571:
1447                 case e1000_82572:
1448                         return e1000_set_82571_fiber_loopback(adapter);
1449                         break;
1450                 default:
1451                         rctl = er32(RCTL);
1452                         rctl |= E1000_RCTL_LBM_TCVR;
1453                         ew32(RCTL, rctl);
1454                         return 0;
1455                 }
1456         } else if (hw->phy.media_type == e1000_media_type_copper) {
1457                 return e1000_integrated_phy_loopback(adapter);
1458         }
1459
1460         return 7;
1461 }
1462
1463 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1464 {
1465         struct e1000_hw *hw = &adapter->hw;
1466         u32 rctl;
1467         u16 phy_reg;
1468
1469         rctl = er32(RCTL);
1470         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1471         ew32(RCTL, rctl);
1472
1473         switch (hw->mac.type) {
1474         case e1000_80003es2lan:
1475                 if (hw->phy.media_type == e1000_media_type_fiber ||
1476                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1477                         /* restore CTRL_EXT, stealing space from tx_fifo_head */
1478                         ew32(CTRL_EXT, adapter->tx_fifo_head);
1479                         adapter->tx_fifo_head = 0;
1480                 }
1481                 /* fall through */
1482         case e1000_82571:
1483         case e1000_82572:
1484                 if (hw->phy.media_type == e1000_media_type_fiber ||
1485                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1486 #define E1000_SERDES_LB_OFF 0x400
1487                         ew32(SCTL, E1000_SERDES_LB_OFF);
1488                         msleep(10);
1489                         break;
1490                 }
1491                 /* Fall Through */
1492         default:
1493                 hw->mac.autoneg = 1;
1494                 if (hw->phy.type == e1000_phy_gg82563)
1495                         e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1496                 e1e_rphy(hw, PHY_CONTROL, &phy_reg);
1497                 if (phy_reg & MII_CR_LOOPBACK) {
1498                         phy_reg &= ~MII_CR_LOOPBACK;
1499                         e1e_wphy(hw, PHY_CONTROL, phy_reg);
1500                         e1000e_commit_phy(hw);
1501                 }
1502                 break;
1503         }
1504 }
1505
1506 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1507                                       unsigned int frame_size)
1508 {
1509         memset(skb->data, 0xFF, frame_size);
1510         frame_size &= ~1;
1511         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1512         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1513         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1514 }
1515
1516 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1517                                     unsigned int frame_size)
1518 {
1519         frame_size &= ~1;
1520         if (*(skb->data + 3) == 0xFF)
1521                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1522                    (*(skb->data + frame_size / 2 + 12) == 0xAF))
1523                         return 0;
1524         return 13;
1525 }
1526
1527 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1528 {
1529         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1530         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1531         struct pci_dev *pdev = adapter->pdev;
1532         struct e1000_hw *hw = &adapter->hw;
1533         int i, j, k, l;
1534         int lc;
1535         int good_cnt;
1536         int ret_val = 0;
1537         unsigned long time;
1538
1539         ew32(RDT, rx_ring->count - 1);
1540
1541         /*
1542          * Calculate the loop count based on the largest descriptor ring
1543          * The idea is to wrap the largest ring a number of times using 64
1544          * send/receive pairs during each loop
1545          */
1546
1547         if (rx_ring->count <= tx_ring->count)
1548                 lc = ((tx_ring->count / 64) * 2) + 1;
1549         else
1550                 lc = ((rx_ring->count / 64) * 2) + 1;
1551
1552         k = 0;
1553         l = 0;
1554         for (j = 0; j <= lc; j++) { /* loop count loop */
1555                 for (i = 0; i < 64; i++) { /* send the packets */
1556                         e1000_create_lbtest_frame(tx_ring->buffer_info[k].skb,
1557                                                   1024);
1558                         pci_dma_sync_single_for_device(pdev,
1559                                         tx_ring->buffer_info[k].dma,
1560                                         tx_ring->buffer_info[k].length,
1561                                         PCI_DMA_TODEVICE);
1562                         k++;
1563                         if (k == tx_ring->count)
1564                                 k = 0;
1565                 }
1566                 ew32(TDT, k);
1567                 msleep(200);
1568                 time = jiffies; /* set the start time for the receive */
1569                 good_cnt = 0;
1570                 do { /* receive the sent packets */
1571                         pci_dma_sync_single_for_cpu(pdev,
1572                                         rx_ring->buffer_info[l].dma, 2048,
1573                                         PCI_DMA_FROMDEVICE);
1574
1575                         ret_val = e1000_check_lbtest_frame(
1576                                         rx_ring->buffer_info[l].skb, 1024);
1577                         if (!ret_val)
1578                                 good_cnt++;
1579                         l++;
1580                         if (l == rx_ring->count)
1581                                 l = 0;
1582                         /*
1583                          * time + 20 msecs (200 msecs on 2.4) is more than
1584                          * enough time to complete the receives, if it's
1585                          * exceeded, break and error off
1586                          */
1587                 } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1588                 if (good_cnt != 64) {
1589                         ret_val = 13; /* ret_val is the same as mis-compare */
1590                         break;
1591                 }
1592                 if (jiffies >= (time + 20)) {
1593                         ret_val = 14; /* error code for time out error */
1594                         break;
1595                 }
1596         } /* end loop count loop */
1597         return ret_val;
1598 }
1599
1600 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1601 {
1602         /*
1603          * PHY loopback cannot be performed if SoL/IDER
1604          * sessions are active
1605          */
1606         if (e1000_check_reset_block(&adapter->hw)) {
1607                 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1608                 *data = 0;
1609                 goto out;
1610         }
1611
1612         *data = e1000_setup_desc_rings(adapter);
1613         if (*data)
1614                 goto out;
1615
1616         *data = e1000_setup_loopback_test(adapter);
1617         if (*data)
1618                 goto err_loopback;
1619
1620         *data = e1000_run_loopback_test(adapter);
1621         e1000_loopback_cleanup(adapter);
1622
1623 err_loopback:
1624         e1000_free_desc_rings(adapter);
1625 out:
1626         return *data;
1627 }
1628
1629 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1630 {
1631         struct e1000_hw *hw = &adapter->hw;
1632
1633         *data = 0;
1634         if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1635                 int i = 0;
1636                 hw->mac.serdes_has_link = false;
1637
1638                 /*
1639                  * On some blade server designs, link establishment
1640                  * could take as long as 2-3 minutes
1641                  */
1642                 do {
1643                         hw->mac.ops.check_for_link(hw);
1644                         if (hw->mac.serdes_has_link)
1645                                 return *data;
1646                         msleep(20);
1647                 } while (i++ < 3750);
1648
1649                 *data = 1;
1650         } else {
1651                 hw->mac.ops.check_for_link(hw);
1652                 if (hw->mac.autoneg)
1653                         msleep(4000);
1654
1655                 if (!(er32(STATUS) &
1656                       E1000_STATUS_LU))
1657                         *data = 1;
1658         }
1659         return *data;
1660 }
1661
1662 static int e1000e_get_sset_count(struct net_device *netdev, int sset)
1663 {
1664         switch (sset) {
1665         case ETH_SS_TEST:
1666                 return E1000_TEST_LEN;
1667         case ETH_SS_STATS:
1668                 return E1000_STATS_LEN;
1669         default:
1670                 return -EOPNOTSUPP;
1671         }
1672 }
1673
1674 static void e1000_diag_test(struct net_device *netdev,
1675                             struct ethtool_test *eth_test, u64 *data)
1676 {
1677         struct e1000_adapter *adapter = netdev_priv(netdev);
1678         u16 autoneg_advertised;
1679         u8 forced_speed_duplex;
1680         u8 autoneg;
1681         bool if_running = netif_running(netdev);
1682
1683         set_bit(__E1000_TESTING, &adapter->state);
1684         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1685                 /* Offline tests */
1686
1687                 /* save speed, duplex, autoneg settings */
1688                 autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1689                 forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1690                 autoneg = adapter->hw.mac.autoneg;
1691
1692                 e_info("offline testing starting\n");
1693
1694                 /*
1695                  * Link test performed before hardware reset so autoneg doesn't
1696                  * interfere with test result
1697                  */
1698                 if (e1000_link_test(adapter, &data[4]))
1699                         eth_test->flags |= ETH_TEST_FL_FAILED;
1700
1701                 if (if_running)
1702                         /* indicate we're in test mode */
1703                         dev_close(netdev);
1704                 else
1705                         e1000e_reset(adapter);
1706
1707                 if (e1000_reg_test(adapter, &data[0]))
1708                         eth_test->flags |= ETH_TEST_FL_FAILED;
1709
1710                 e1000e_reset(adapter);
1711                 if (e1000_eeprom_test(adapter, &data[1]))
1712                         eth_test->flags |= ETH_TEST_FL_FAILED;
1713
1714                 e1000e_reset(adapter);
1715                 if (e1000_intr_test(adapter, &data[2]))
1716                         eth_test->flags |= ETH_TEST_FL_FAILED;
1717
1718                 e1000e_reset(adapter);
1719                 /* make sure the phy is powered up */
1720                 e1000e_power_up_phy(adapter);
1721                 if (e1000_loopback_test(adapter, &data[3]))
1722                         eth_test->flags |= ETH_TEST_FL_FAILED;
1723
1724                 /* restore speed, duplex, autoneg settings */
1725                 adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1726                 adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1727                 adapter->hw.mac.autoneg = autoneg;
1728
1729                 /* force this routine to wait until autoneg complete/timeout */
1730                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1731                 e1000e_reset(adapter);
1732                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1733
1734                 clear_bit(__E1000_TESTING, &adapter->state);
1735                 if (if_running)
1736                         dev_open(netdev);
1737         } else {
1738                 e_info("online testing starting\n");
1739                 /* Online tests */
1740                 if (e1000_link_test(adapter, &data[4]))
1741                         eth_test->flags |= ETH_TEST_FL_FAILED;
1742
1743                 /* Online tests aren't run; pass by default */
1744                 data[0] = 0;
1745                 data[1] = 0;
1746                 data[2] = 0;
1747                 data[3] = 0;
1748
1749                 clear_bit(__E1000_TESTING, &adapter->state);
1750         }
1751         msleep_interruptible(4 * 1000);
1752 }
1753
1754 static void e1000_get_wol(struct net_device *netdev,
1755                           struct ethtool_wolinfo *wol)
1756 {
1757         struct e1000_adapter *adapter = netdev_priv(netdev);
1758
1759         wol->supported = 0;
1760         wol->wolopts = 0;
1761
1762         if (!(adapter->flags & FLAG_HAS_WOL) ||
1763             !device_can_wakeup(&adapter->pdev->dev))
1764                 return;
1765
1766         wol->supported = WAKE_UCAST | WAKE_MCAST |
1767                          WAKE_BCAST | WAKE_MAGIC |
1768                          WAKE_PHY | WAKE_ARP;
1769
1770         /* apply any specific unsupported masks here */
1771         if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1772                 wol->supported &= ~WAKE_UCAST;
1773
1774                 if (adapter->wol & E1000_WUFC_EX)
1775                         e_err("Interface does not support directed (unicast) "
1776                               "frame wake-up packets\n");
1777         }
1778
1779         if (adapter->wol & E1000_WUFC_EX)
1780                 wol->wolopts |= WAKE_UCAST;
1781         if (adapter->wol & E1000_WUFC_MC)
1782                 wol->wolopts |= WAKE_MCAST;
1783         if (adapter->wol & E1000_WUFC_BC)
1784                 wol->wolopts |= WAKE_BCAST;
1785         if (adapter->wol & E1000_WUFC_MAG)
1786                 wol->wolopts |= WAKE_MAGIC;
1787         if (adapter->wol & E1000_WUFC_LNKC)
1788                 wol->wolopts |= WAKE_PHY;
1789         if (adapter->wol & E1000_WUFC_ARP)
1790                 wol->wolopts |= WAKE_ARP;
1791 }
1792
1793 static int e1000_set_wol(struct net_device *netdev,
1794                          struct ethtool_wolinfo *wol)
1795 {
1796         struct e1000_adapter *adapter = netdev_priv(netdev);
1797
1798         if (!(adapter->flags & FLAG_HAS_WOL) ||
1799             !device_can_wakeup(&adapter->pdev->dev) ||
1800             (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1801                               WAKE_MAGIC | WAKE_PHY | WAKE_ARP)))
1802                 return -EOPNOTSUPP;
1803
1804         /* these settings will always override what we currently have */
1805         adapter->wol = 0;
1806
1807         if (wol->wolopts & WAKE_UCAST)
1808                 adapter->wol |= E1000_WUFC_EX;
1809         if (wol->wolopts & WAKE_MCAST)
1810                 adapter->wol |= E1000_WUFC_MC;
1811         if (wol->wolopts & WAKE_BCAST)
1812                 adapter->wol |= E1000_WUFC_BC;
1813         if (wol->wolopts & WAKE_MAGIC)
1814                 adapter->wol |= E1000_WUFC_MAG;
1815         if (wol->wolopts & WAKE_PHY)
1816                 adapter->wol |= E1000_WUFC_LNKC;
1817         if (wol->wolopts & WAKE_ARP)
1818                 adapter->wol |= E1000_WUFC_ARP;
1819
1820         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1821
1822         return 0;
1823 }
1824
1825 /* toggle LED 4 times per second = 2 "blinks" per second */
1826 #define E1000_ID_INTERVAL       (HZ/4)
1827
1828 /* bit defines for adapter->led_status */
1829 #define E1000_LED_ON            0
1830
1831 static void e1000e_led_blink_task(struct work_struct *work)
1832 {
1833         struct e1000_adapter *adapter = container_of(work,
1834                                         struct e1000_adapter, led_blink_task);
1835
1836         if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
1837                 adapter->hw.mac.ops.led_off(&adapter->hw);
1838         else
1839                 adapter->hw.mac.ops.led_on(&adapter->hw);
1840 }
1841
1842 static void e1000_led_blink_callback(unsigned long data)
1843 {
1844         struct e1000_adapter *adapter = (struct e1000_adapter *) data;
1845
1846         schedule_work(&adapter->led_blink_task);
1847         mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
1848 }
1849
1850 static int e1000_phys_id(struct net_device *netdev, u32 data)
1851 {
1852         struct e1000_adapter *adapter = netdev_priv(netdev);
1853         struct e1000_hw *hw = &adapter->hw;
1854
1855         if (!data)
1856                 data = INT_MAX;
1857
1858         if ((hw->phy.type == e1000_phy_ife) ||
1859             (hw->mac.type == e1000_pchlan) ||
1860             (hw->mac.type == e1000_82583) ||
1861             (hw->mac.type == e1000_82574)) {
1862                 INIT_WORK(&adapter->led_blink_task, e1000e_led_blink_task);
1863                 if (!adapter->blink_timer.function) {
1864                         init_timer(&adapter->blink_timer);
1865                         adapter->blink_timer.function =
1866                                 e1000_led_blink_callback;
1867                         adapter->blink_timer.data = (unsigned long) adapter;
1868                 }
1869                 mod_timer(&adapter->blink_timer, jiffies);
1870                 msleep_interruptible(data * 1000);
1871                 del_timer_sync(&adapter->blink_timer);
1872                 if (hw->phy.type == e1000_phy_ife)
1873                         e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1874         } else {
1875                 e1000e_blink_led(hw);
1876                 msleep_interruptible(data * 1000);
1877         }
1878
1879         hw->mac.ops.led_off(hw);
1880         clear_bit(E1000_LED_ON, &adapter->led_status);
1881         hw->mac.ops.cleanup_led(hw);
1882
1883         return 0;
1884 }
1885
1886 static int e1000_get_coalesce(struct net_device *netdev,
1887                               struct ethtool_coalesce *ec)
1888 {
1889         struct e1000_adapter *adapter = netdev_priv(netdev);
1890
1891         if (adapter->itr_setting <= 3)
1892                 ec->rx_coalesce_usecs = adapter->itr_setting;
1893         else
1894                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1895
1896         return 0;
1897 }
1898
1899 static int e1000_set_coalesce(struct net_device *netdev,
1900                               struct ethtool_coalesce *ec)
1901 {
1902         struct e1000_adapter *adapter = netdev_priv(netdev);
1903         struct e1000_hw *hw = &adapter->hw;
1904
1905         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1906             ((ec->rx_coalesce_usecs > 3) &&
1907              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1908             (ec->rx_coalesce_usecs == 2))
1909                 return -EINVAL;
1910
1911         if (ec->rx_coalesce_usecs <= 3) {
1912                 adapter->itr = 20000;
1913                 adapter->itr_setting = ec->rx_coalesce_usecs;
1914         } else {
1915                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1916                 adapter->itr_setting = adapter->itr & ~3;
1917         }
1918
1919         if (adapter->itr_setting != 0)
1920                 ew32(ITR, 1000000000 / (adapter->itr * 256));
1921         else
1922                 ew32(ITR, 0);
1923
1924         return 0;
1925 }
1926
1927 static int e1000_nway_reset(struct net_device *netdev)
1928 {
1929         struct e1000_adapter *adapter = netdev_priv(netdev);
1930         if (netif_running(netdev))
1931                 e1000e_reinit_locked(adapter);
1932         return 0;
1933 }
1934
1935 static void e1000_get_ethtool_stats(struct net_device *netdev,
1936                                     struct ethtool_stats *stats,
1937                                     u64 *data)
1938 {
1939         struct e1000_adapter *adapter = netdev_priv(netdev);
1940         int i;
1941         char *p = NULL;
1942
1943         e1000e_update_stats(adapter);
1944         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1945                 switch (e1000_gstrings_stats[i].type) {
1946                 case NETDEV_STATS:
1947                         p = (char *) netdev +
1948                                         e1000_gstrings_stats[i].stat_offset;
1949                         break;
1950                 case E1000_STATS:
1951                         p = (char *) adapter +
1952                                         e1000_gstrings_stats[i].stat_offset;
1953                         break;
1954                 }
1955
1956                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1957                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1958         }
1959 }
1960
1961 static void e1000_get_strings(struct net_device *netdev, u32 stringset,
1962                               u8 *data)
1963 {
1964         u8 *p = data;
1965         int i;
1966
1967         switch (stringset) {
1968         case ETH_SS_TEST:
1969                 memcpy(data, *e1000_gstrings_test, sizeof(e1000_gstrings_test));
1970                 break;
1971         case ETH_SS_STATS:
1972                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1973                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1974                                ETH_GSTRING_LEN);
1975                         p += ETH_GSTRING_LEN;
1976                 }
1977                 break;
1978         }
1979 }
1980
1981 static const struct ethtool_ops e1000_ethtool_ops = {
1982         .get_settings           = e1000_get_settings,
1983         .set_settings           = e1000_set_settings,
1984         .get_drvinfo            = e1000_get_drvinfo,
1985         .get_regs_len           = e1000_get_regs_len,
1986         .get_regs               = e1000_get_regs,
1987         .get_wol                = e1000_get_wol,
1988         .set_wol                = e1000_set_wol,
1989         .get_msglevel           = e1000_get_msglevel,
1990         .set_msglevel           = e1000_set_msglevel,
1991         .nway_reset             = e1000_nway_reset,
1992         .get_link               = e1000_get_link,
1993         .get_eeprom_len         = e1000_get_eeprom_len,
1994         .get_eeprom             = e1000_get_eeprom,
1995         .set_eeprom             = e1000_set_eeprom,
1996         .get_ringparam          = e1000_get_ringparam,
1997         .set_ringparam          = e1000_set_ringparam,
1998         .get_pauseparam         = e1000_get_pauseparam,
1999         .set_pauseparam         = e1000_set_pauseparam,
2000         .get_rx_csum            = e1000_get_rx_csum,
2001         .set_rx_csum            = e1000_set_rx_csum,
2002         .get_tx_csum            = e1000_get_tx_csum,
2003         .set_tx_csum            = e1000_set_tx_csum,
2004         .get_sg                 = ethtool_op_get_sg,
2005         .set_sg                 = ethtool_op_set_sg,
2006         .get_tso                = ethtool_op_get_tso,
2007         .set_tso                = e1000_set_tso,
2008         .self_test              = e1000_diag_test,
2009         .get_strings            = e1000_get_strings,
2010         .phys_id                = e1000_phys_id,
2011         .get_ethtool_stats      = e1000_get_ethtool_stats,
2012         .get_sset_count         = e1000e_get_sset_count,
2013         .get_coalesce           = e1000_get_coalesce,
2014         .set_coalesce           = e1000_set_coalesce,
2015         .get_flags              = ethtool_op_get_flags,
2016         .set_flags              = ethtool_op_set_flags,
2017 };
2018
2019 void e1000e_set_ethtool_ops(struct net_device *netdev)
2020 {
2021         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
2022 }