drivers/net/e1000/e1000_ethtool.c

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2006 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 "e1000.h"
  32
  33 #include <asm/uaccess.h>
  34
  35 extern int e1000_up(struct e1000_adapter *adapter);
  36 extern void e1000_down(struct e1000_adapter *adapter);
  37 extern void e1000_reinit_locked(struct e1000_adapter *adapter);
  38 extern void e1000_reset(struct e1000_adapter *adapter);
  39 extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx);
  40 extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
  41 extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
  42 extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
  43 extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
  44 extern void e1000_update_stats(struct e1000_adapter *adapter);
  45
  46
  47 struct e1000_stats {
  48         char stat_string[ETH_GSTRING_LEN];
  49         int sizeof_stat;
  50         int stat_offset;
  51 };
  52
  53 #define E1000_STAT(m) FIELD_SIZEOF(struct e1000_adapter, m), \
  54                       offsetof(struct e1000_adapter, m)
  55 static const struct e1000_stats e1000_gstrings_stats[] = {
  56         { "rx_packets", E1000_STAT(stats.gprc) },
  57         { "tx_packets", E1000_STAT(stats.gptc) },
  58         { "rx_bytes", E1000_STAT(stats.gorcl) },
  59         { "tx_bytes", E1000_STAT(stats.gotcl) },
  60         { "rx_broadcast", E1000_STAT(stats.bprc) },
  61         { "tx_broadcast", E1000_STAT(stats.bptc) },
  62         { "rx_multicast", E1000_STAT(stats.mprc) },
  63         { "tx_multicast", E1000_STAT(stats.mptc) },
  64         { "rx_errors", E1000_STAT(stats.rxerrc) },
  65         { "tx_errors", E1000_STAT(stats.txerrc) },
  66         { "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
  67         { "multicast", E1000_STAT(stats.mprc) },
  68         { "collisions", E1000_STAT(stats.colc) },
  69         { "rx_length_errors", E1000_STAT(stats.rlerrc) },
  70         { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
  71         { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
  72         { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
  73         { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
  74         { "rx_missed_errors", E1000_STAT(stats.mpc) },
  75         { "tx_aborted_errors", E1000_STAT(stats.ecol) },
  76         { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
  77         { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
  78         { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
  79         { "tx_window_errors", E1000_STAT(stats.latecol) },
  80         { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
  81         { "tx_deferred_ok", E1000_STAT(stats.dc) },
  82         { "tx_single_coll_ok", E1000_STAT(stats.scc) },
  83         { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
  84         { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
  85         { "tx_restart_queue", E1000_STAT(restart_queue) },
  86         { "rx_long_length_errors", E1000_STAT(stats.roc) },
  87         { "rx_short_length_errors", E1000_STAT(stats.ruc) },
  88         { "rx_align_errors", E1000_STAT(stats.algnerrc) },
  89         { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
  90         { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
  91         { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
  92         { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
  93         { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
  94         { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
  95         { "rx_long_byte_count", E1000_STAT(stats.gorcl) },
  96         { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
  97         { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
  98         { "rx_header_split", E1000_STAT(rx_hdr_split) },
  99         { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
 100         { "tx_smbus", E1000_STAT(stats.mgptc) },
 101         { "rx_smbus", E1000_STAT(stats.mgprc) },
 102         { "dropped_smbus", E1000_STAT(stats.mgpdc) },
 103 };
 104
 105 #define E1000_QUEUE_STATS_LEN 0
 106 #define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
 107 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_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
 116 e1000_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 117 {
 118         struct e1000_adapter *adapter = netdev_priv(netdev);
 119         struct e1000_hw *hw = &adapter->hw;
 120
 121         if (hw->media_type == e1000_media_type_copper) {
 122
 123                 ecmd->supported = (SUPPORTED_10baseT_Half |
 124                                    SUPPORTED_10baseT_Full |
 125                                    SUPPORTED_100baseT_Half |
 126                                    SUPPORTED_100baseT_Full |
 127                                    SUPPORTED_1000baseT_Full|
 128                                    SUPPORTED_Autoneg |
 129                                    SUPPORTED_TP);
 130                 if (hw->phy_type == e1000_phy_ife)
 131                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 132                 ecmd->advertising = ADVERTISED_TP;
 133
 134                 if (hw->autoneg == 1) {
 135                         ecmd->advertising |= ADVERTISED_Autoneg;
 136                         /* the e1000 autoneg seems to match ethtool nicely */
 137                         ecmd->advertising |= hw->autoneg_advertised;
 138                 }
 139
 140                 ecmd->port = PORT_TP;
 141                 ecmd->phy_address = hw->phy_addr;
 142
 143                 if (hw->mac_type == e1000_82543)
 144                         ecmd->transceiver = XCVR_EXTERNAL;
 145                 else
 146                         ecmd->transceiver = XCVR_INTERNAL;
 147
 148         } else {
 149                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 150                                      SUPPORTED_FIBRE |
 151                                      SUPPORTED_Autoneg);
 152
 153                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 154                                      ADVERTISED_FIBRE |
 155                                      ADVERTISED_Autoneg);
 156
 157                 ecmd->port = PORT_FIBRE;
 158
 159                 if (hw->mac_type >= e1000_82545)
 160                         ecmd->transceiver = XCVR_INTERNAL;
 161                 else
 162                         ecmd->transceiver = XCVR_EXTERNAL;
 163         }
 164
 165         if (E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU) {
 166
 167                 e1000_get_speed_and_duplex(hw, &adapter->link_speed,
 168                                                    &adapter->link_duplex);
 169                 ecmd->speed = adapter->link_speed;
 170
 171                 /* unfortunatly FULL_DUPLEX != DUPLEX_FULL
 172                  *          and HALF_DUPLEX != DUPLEX_HALF */
 173
 174                 if (adapter->link_duplex == FULL_DUPLEX)
 175                         ecmd->duplex = DUPLEX_FULL;
 176                 else
 177                         ecmd->duplex = DUPLEX_HALF;
 178         } else {
 179                 ecmd->speed = -1;
 180                 ecmd->duplex = -1;
 181         }
 182
 183         ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
 184                          hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 185         return 0;
 186 }
 187
 188 static int
 189 e1000_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 190 {
 191         struct e1000_adapter *adapter = netdev_priv(netdev);
 192         struct e1000_hw *hw = &adapter->hw;
 193
 194         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 195          * cannot be changed */
 196         if (e1000_check_phy_reset_block(hw)) {
 197                 DPRINTK(DRV, ERR, "Cannot change link characteristics "
 198                         "when SoL/IDER is active.\n");
 199                 return -EINVAL;
 200         }
 201
 202         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 203                 msleep(1);
 204
 205         if (ecmd->autoneg == AUTONEG_ENABLE) {
 206                 hw->autoneg = 1;
 207                 if (hw->media_type == e1000_media_type_fiber)
 208                         hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
 209                                      ADVERTISED_FIBRE |
 210                                      ADVERTISED_Autoneg;
 211                 else
 212                         hw->autoneg_advertised = ecmd->advertising |
 213                                                  ADVERTISED_TP |
 214                                                  ADVERTISED_Autoneg;
 215                 ecmd->advertising = hw->autoneg_advertised;
 216         } else
 217                 if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
 218                         clear_bit(__E1000_RESETTING, &adapter->flags);
 219                         return -EINVAL;
 220                 }
 221
 222         /* reset the link */
 223
 224         if (netif_running(adapter->netdev)) {
 225                 e1000_down(adapter);
 226                 e1000_up(adapter);
 227         } else
 228                 e1000_reset(adapter);
 229
 230         clear_bit(__E1000_RESETTING, &adapter->flags);
 231         return 0;
 232 }
 233
 234 static void
 235 e1000_get_pauseparam(struct net_device *netdev,
 236                      struct ethtool_pauseparam *pause)
 237 {
 238         struct e1000_adapter *adapter = netdev_priv(netdev);
 239         struct e1000_hw *hw = &adapter->hw;
 240
 241         pause->autoneg =
 242                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 243
 244         if (hw->fc == E1000_FC_RX_PAUSE)
 245                 pause->rx_pause = 1;
 246         else if (hw->fc == E1000_FC_TX_PAUSE)
 247                 pause->tx_pause = 1;
 248         else if (hw->fc == E1000_FC_FULL) {
 249                 pause->rx_pause = 1;
 250                 pause->tx_pause = 1;
 251         }
 252 }
 253
 254 static int
 255 e1000_set_pauseparam(struct net_device *netdev,
 256                      struct ethtool_pauseparam *pause)
 257 {
 258         struct e1000_adapter *adapter = netdev_priv(netdev);
 259         struct e1000_hw *hw = &adapter->hw;
 260         int retval = 0;
 261
 262         adapter->fc_autoneg = pause->autoneg;
 263
 264         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 265                 msleep(1);
 266
 267         if (pause->rx_pause && pause->tx_pause)
 268                 hw->fc = E1000_FC_FULL;
 269         else if (pause->rx_pause && !pause->tx_pause)
 270                 hw->fc = E1000_FC_RX_PAUSE;
 271         else if (!pause->rx_pause && pause->tx_pause)
 272                 hw->fc = E1000_FC_TX_PAUSE;
 273         else if (!pause->rx_pause && !pause->tx_pause)
 274                 hw->fc = E1000_FC_NONE;
 275
 276         hw->original_fc = hw->fc;
 277
 278         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 279                 if (netif_running(adapter->netdev)) {
 280                         e1000_down(adapter);
 281                         e1000_up(adapter);
 282                 } else
 283                         e1000_reset(adapter);
 284         } else
 285                 retval = ((hw->media_type == e1000_media_type_fiber) ?
 286                           e1000_setup_link(hw) : e1000_force_mac_fc(hw));
 287
 288         clear_bit(__E1000_RESETTING, &adapter->flags);
 289         return retval;
 290 }
 291
 292 static uint32_t
 293 e1000_get_rx_csum(struct net_device *netdev)
 294 {
 295         struct e1000_adapter *adapter = netdev_priv(netdev);
 296         return adapter->rx_csum;
 297 }
 298
 299 static int
 300 e1000_set_rx_csum(struct net_device *netdev, uint32_t data)
 301 {
 302         struct e1000_adapter *adapter = netdev_priv(netdev);
 303         adapter->rx_csum = data;
 304
 305         if (netif_running(netdev))
 306                 e1000_reinit_locked(adapter);
 307         else
 308                 e1000_reset(adapter);
 309         return 0;
 310 }
 311
 312 static uint32_t
 313 e1000_get_tx_csum(struct net_device *netdev)
 314 {
 315         return (netdev->features & NETIF_F_HW_CSUM) != 0;
 316 }
 317
 318 static int
 319 e1000_set_tx_csum(struct net_device *netdev, uint32_t data)
 320 {
 321         struct e1000_adapter *adapter = netdev_priv(netdev);
 322
 323         if (adapter->hw.mac_type < e1000_82543) {
 324                 if (!data)
 325                         return -EINVAL;
 326                 return 0;
 327         }
 328
 329         if (data)
 330                 netdev->features |= NETIF_F_HW_CSUM;
 331         else
 332                 netdev->features &= ~NETIF_F_HW_CSUM;
 333
 334         return 0;
 335 }
 336
 337 static int
 338 e1000_set_tso(struct net_device *netdev, uint32_t data)
 339 {
 340         struct e1000_adapter *adapter = netdev_priv(netdev);
 341         if ((adapter->hw.mac_type < e1000_82544) ||
 342             (adapter->hw.mac_type == e1000_82547))
 343                 return data ? -EINVAL : 0;
 344
 345         if (data)
 346                 netdev->features |= NETIF_F_TSO;
 347         else
 348                 netdev->features &= ~NETIF_F_TSO;
 349
 350         if (data)
 351                 netdev->features |= NETIF_F_TSO6;
 352         else
 353                 netdev->features &= ~NETIF_F_TSO6;
 354
 355         DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
 356         adapter->tso_force = TRUE;
 357         return 0;
 358 }
 359
 360 static uint32_t
 361 e1000_get_msglevel(struct net_device *netdev)
 362 {
 363         struct e1000_adapter *adapter = netdev_priv(netdev);
 364         return adapter->msg_enable;
 365 }
 366
 367 static void
 368 e1000_set_msglevel(struct net_device *netdev, uint32_t data)
 369 {
 370         struct e1000_adapter *adapter = netdev_priv(netdev);
 371         adapter->msg_enable = data;
 372 }
 373
 374 static int
 375 e1000_get_regs_len(struct net_device *netdev)
 376 {
 377 #define E1000_REGS_LEN 32
 378         return E1000_REGS_LEN * sizeof(uint32_t);
 379 }
 380
 381 static void
 382 e1000_get_regs(struct net_device *netdev,
 383                struct ethtool_regs *regs, void *p)
 384 {
 385         struct e1000_adapter *adapter = netdev_priv(netdev);
 386         struct e1000_hw *hw = &adapter->hw;
 387         uint32_t *regs_buff = p;
 388         uint16_t phy_data;
 389
 390         memset(p, 0, E1000_REGS_LEN * sizeof(uint32_t));
 391
 392         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 393
 394         regs_buff[0]  = E1000_READ_REG(hw, CTRL);
 395         regs_buff[1]  = E1000_READ_REG(hw, STATUS);
 396
 397         regs_buff[2]  = E1000_READ_REG(hw, RCTL);
 398         regs_buff[3]  = E1000_READ_REG(hw, RDLEN);
 399         regs_buff[4]  = E1000_READ_REG(hw, RDH);
 400         regs_buff[5]  = E1000_READ_REG(hw, RDT);
 401         regs_buff[6]  = E1000_READ_REG(hw, RDTR);
 402
 403         regs_buff[7]  = E1000_READ_REG(hw, TCTL);
 404         regs_buff[8]  = E1000_READ_REG(hw, TDLEN);
 405         regs_buff[9]  = E1000_READ_REG(hw, TDH);
 406         regs_buff[10] = E1000_READ_REG(hw, TDT);
 407         regs_buff[11] = E1000_READ_REG(hw, TIDV);
 408
 409         regs_buff[12] = adapter->hw.phy_type;  /* PHY type (IGP=1, M88=0) */
 410         if (hw->phy_type == e1000_phy_igp) {
 411                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 412                                     IGP01E1000_PHY_AGC_A);
 413                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
 414                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 415                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 416                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 417                                     IGP01E1000_PHY_AGC_B);
 418                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
 419                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 420                 regs_buff[14] = (uint32_t)phy_data; /* cable length */
 421                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 422                                     IGP01E1000_PHY_AGC_C);
 423                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
 424                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 425                 regs_buff[15] = (uint32_t)phy_data; /* cable length */
 426                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 427                                     IGP01E1000_PHY_AGC_D);
 428                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
 429                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 430                 regs_buff[16] = (uint32_t)phy_data; /* cable length */
 431                 regs_buff[17] = 0; /* extended 10bt distance (not needed) */
 432                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 433                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
 434                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 435                 regs_buff[18] = (uint32_t)phy_data; /* cable polarity */
 436                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 437                                     IGP01E1000_PHY_PCS_INIT_REG);
 438                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
 439                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 440                 regs_buff[19] = (uint32_t)phy_data; /* cable polarity */
 441                 regs_buff[20] = 0; /* polarity correction enabled (always) */
 442                 regs_buff[22] = 0; /* phy receive errors (unavailable) */
 443                 regs_buff[23] = regs_buff[18]; /* mdix mode */
 444                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 445         } else {
 446                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 447                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 448                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 449                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 450                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 451                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 452                 regs_buff[17] = (uint32_t)phy_data; /* extended 10bt distance */
 453                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 454                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 455                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 456                 /* phy receive errors */
 457                 regs_buff[22] = adapter->phy_stats.receive_errors;
 458                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 459         }
 460         regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
 461         e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
 462         regs_buff[24] = (uint32_t)phy_data;  /* phy local receiver status */
 463         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 464         if (hw->mac_type >= e1000_82540 &&
 465             hw->mac_type < e1000_82571 &&
 466             hw->media_type == e1000_media_type_copper) {
 467                 regs_buff[26] = E1000_READ_REG(hw, MANC);
 468         }
 469 }
 470
 471 static int
 472 e1000_get_eeprom_len(struct net_device *netdev)
 473 {
 474         struct e1000_adapter *adapter = netdev_priv(netdev);
 475         return adapter->hw.eeprom.word_size * 2;
 476 }
 477
 478 static int
 479 e1000_get_eeprom(struct net_device *netdev,
 480                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 481 {
 482         struct e1000_adapter *adapter = netdev_priv(netdev);
 483         struct e1000_hw *hw = &adapter->hw;
 484         uint16_t *eeprom_buff;
 485         int first_word, last_word;
 486         int ret_val = 0;
 487         uint16_t i;
 488
 489         if (eeprom->len == 0)
 490                 return -EINVAL;
 491
 492         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 493
 494         first_word = eeprom->offset >> 1;
 495         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 496
 497         eeprom_buff = kmalloc(sizeof(uint16_t) *
 498                         (last_word - first_word + 1), GFP_KERNEL);
 499         if (!eeprom_buff)
 500                 return -ENOMEM;
 501
 502         if (hw->eeprom.type == e1000_eeprom_spi)
 503                 ret_val = e1000_read_eeprom(hw, first_word,
 504                                             last_word - first_word + 1,
 505                                             eeprom_buff);
 506         else {
 507                 for (i = 0; i < last_word - first_word + 1; i++)
 508                         if ((ret_val = e1000_read_eeprom(hw, first_word + i, 1,
 509                                                         &eeprom_buff[i])))
 510                                 break;
 511         }
 512
 513         /* Device's eeprom is always little-endian, word addressable */
 514         for (i = 0; i < last_word - first_word + 1; i++)
 515                 le16_to_cpus(&eeprom_buff[i]);
 516
 517         memcpy(bytes, (uint8_t *)eeprom_buff + (eeprom->offset & 1),
 518                         eeprom->len);
 519         kfree(eeprom_buff);
 520
 521         return ret_val;
 522 }
 523
 524 static int
 525 e1000_set_eeprom(struct net_device *netdev,
 526                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 527 {
 528         struct e1000_adapter *adapter = netdev_priv(netdev);
 529         struct e1000_hw *hw = &adapter->hw;
 530         uint16_t *eeprom_buff;
 531         void *ptr;
 532         int max_len, first_word, last_word, ret_val = 0;
 533         uint16_t i;
 534
 535         if (eeprom->len == 0)
 536                 return -EOPNOTSUPP;
 537
 538         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 539                 return -EFAULT;
 540
 541         max_len = hw->eeprom.word_size * 2;
 542
 543         first_word = eeprom->offset >> 1;
 544         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 545         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 546         if (!eeprom_buff)
 547                 return -ENOMEM;
 548
 549         ptr = (void *)eeprom_buff;
 550
 551         if (eeprom->offset & 1) {
 552                 /* need read/modify/write of first changed EEPROM word */
 553                 /* only the second byte of the word is being modified */
 554                 ret_val = e1000_read_eeprom(hw, first_word, 1,
 555                                             &eeprom_buff[0]);
 556                 ptr++;
 557         }
 558         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 559                 /* need read/modify/write of last changed EEPROM word */
 560                 /* only the first byte of the word is being modified */
 561                 ret_val = e1000_read_eeprom(hw, last_word, 1,
 562                                   &eeprom_buff[last_word - first_word]);
 563         }
 564
 565         /* Device's eeprom is always little-endian, word addressable */
 566         for (i = 0; i < last_word - first_word + 1; i++)
 567                 le16_to_cpus(&eeprom_buff[i]);
 568
 569         memcpy(ptr, bytes, eeprom->len);
 570
 571         for (i = 0; i < last_word - first_word + 1; i++)
 572                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 573
 574         ret_val = e1000_write_eeprom(hw, first_word,
 575                                      last_word - first_word + 1, eeprom_buff);
 576
 577         /* Update the checksum over the first part of the EEPROM if needed
 578          * and flush shadow RAM for 82573 conrollers */
 579         if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) ||
 580                                 (hw->mac_type == e1000_82573)))
 581                 e1000_update_eeprom_checksum(hw);
 582
 583         kfree(eeprom_buff);
 584         return ret_val;
 585 }
 586
 587 static void
 588 e1000_get_drvinfo(struct net_device *netdev,
 589                        struct ethtool_drvinfo *drvinfo)
 590 {
 591         struct e1000_adapter *adapter = netdev_priv(netdev);
 592         char firmware_version[32];
 593         uint16_t eeprom_data;
 594
 595         strncpy(drvinfo->driver,  e1000_driver_name, 32);
 596         strncpy(drvinfo->version, e1000_driver_version, 32);
 597
 598         /* EEPROM image version # is reported as firmware version # for
 599          * 8257{1|2|3} controllers */
 600         e1000_read_eeprom(&adapter->hw, 5, 1, &eeprom_data);
 601         switch (adapter->hw.mac_type) {
 602         case e1000_82571:
 603         case e1000_82572:
 604         case e1000_82573:
 605         case e1000_80003es2lan:
 606         case e1000_ich8lan:
 607                 sprintf(firmware_version, "%d.%d-%d",
 608                         (eeprom_data & 0xF000) >> 12,
 609                         (eeprom_data & 0x0FF0) >> 4,
 610                         eeprom_data & 0x000F);
 611                 break;
 612         default:
 613                 sprintf(firmware_version, "N/A");
 614         }
 615
 616         strncpy(drvinfo->fw_version, firmware_version, 32);
 617         strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 618         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 619         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 620 }
 621
 622 static void
 623 e1000_get_ringparam(struct net_device *netdev,
 624                     struct ethtool_ringparam *ring)
 625 {
 626         struct e1000_adapter *adapter = netdev_priv(netdev);
 627         e1000_mac_type mac_type = adapter->hw.mac_type;
 628         struct e1000_tx_ring *txdr = adapter->tx_ring;
 629         struct e1000_rx_ring *rxdr = adapter->rx_ring;
 630
 631         ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
 632                 E1000_MAX_82544_RXD;
 633         ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
 634                 E1000_MAX_82544_TXD;
 635         ring->rx_mini_max_pending = 0;
 636         ring->rx_jumbo_max_pending = 0;
 637         ring->rx_pending = rxdr->count;
 638         ring->tx_pending = txdr->count;
 639         ring->rx_mini_pending = 0;
 640         ring->rx_jumbo_pending = 0;
 641 }
 642
 643 static int
 644 e1000_set_ringparam(struct net_device *netdev,
 645                     struct ethtool_ringparam *ring)
 646 {
 647         struct e1000_adapter *adapter = netdev_priv(netdev);
 648         e1000_mac_type mac_type = adapter->hw.mac_type;
 649         struct e1000_tx_ring *txdr, *tx_old;
 650         struct e1000_rx_ring *rxdr, *rx_old;
 651         int i, err;
 652
 653         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 654                 return -EINVAL;
 655
 656         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 657                 msleep(1);
 658
 659         if (netif_running(adapter->netdev))
 660                 e1000_down(adapter);
 661
 662         tx_old = adapter->tx_ring;
 663         rx_old = adapter->rx_ring;
 664
 665         err = -ENOMEM;
 666         txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL);
 667         if (!txdr)
 668                 goto err_alloc_tx;
 669
 670         rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL);
 671         if (!rxdr)
 672                 goto err_alloc_rx;
 673
 674         adapter->tx_ring = txdr;
 675         adapter->rx_ring = rxdr;
 676
 677         rxdr->count = max(ring->rx_pending,(uint32_t)E1000_MIN_RXD);
 678         rxdr->count = min(rxdr->count,(uint32_t)(mac_type < e1000_82544 ?
 679                 E1000_MAX_RXD : E1000_MAX_82544_RXD));
 680         rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 681
 682         txdr->count = max(ring->tx_pending,(uint32_t)E1000_MIN_TXD);
 683         txdr->count = min(txdr->count,(uint32_t)(mac_type < e1000_82544 ?
 684                 E1000_MAX_TXD : E1000_MAX_82544_TXD));
 685         txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 686
 687         for (i = 0; i < adapter->num_tx_queues; i++)
 688                 txdr[i].count = txdr->count;
 689         for (i = 0; i < adapter->num_rx_queues; i++)
 690                 rxdr[i].count = rxdr->count;
 691
 692         if (netif_running(adapter->netdev)) {
 693                 /* Try to get new resources before deleting old */
 694                 if ((err = e1000_setup_all_rx_resources(adapter)))
 695                         goto err_setup_rx;
 696                 if ((err = e1000_setup_all_tx_resources(adapter)))
 697                         goto err_setup_tx;
 698
 699                 /* save the new, restore the old in order to free it,
 700                  * then restore the new back again */
 701
 702                 adapter->rx_ring = rx_old;
 703                 adapter->tx_ring = tx_old;
 704                 e1000_free_all_rx_resources(adapter);
 705                 e1000_free_all_tx_resources(adapter);
 706                 kfree(tx_old);
 707                 kfree(rx_old);
 708                 adapter->rx_ring = rxdr;
 709                 adapter->tx_ring = txdr;
 710                 if ((err = e1000_up(adapter)))
 711                         goto err_setup;
 712         }
 713
 714         clear_bit(__E1000_RESETTING, &adapter->flags);
 715         return 0;
 716 err_setup_tx:
 717         e1000_free_all_rx_resources(adapter);
 718 err_setup_rx:
 719         adapter->rx_ring = rx_old;
 720         adapter->tx_ring = tx_old;
 721         kfree(rxdr);
 722 err_alloc_rx:
 723         kfree(txdr);
 724 err_alloc_tx:
 725         e1000_up(adapter);
 726 err_setup:
 727         clear_bit(__E1000_RESETTING, &adapter->flags);
 728         return err;
 729 }
 730
 731 static bool reg_pattern_test(struct e1000_adapter *adapter, uint64_t *data,
 732                              int reg, uint32_t mask, uint32_t write)
 733 {
 734         static const uint32_t test[] =
 735                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 736         uint8_t __iomem *address = adapter->hw.hw_addr + reg;
 737         uint32_t read;
 738         int i;
 739
 740         for (i = 0; i < ARRAY_SIZE(test); i++) {
 741                 writel(write & test[i], address);
 742                 read = readl(address);
 743                 if (read != (write & test[i] & mask)) {
 744                         DPRINTK(DRV, ERR, "pattern test reg %04X failed: "
 745                                 "got 0x%08X expected 0x%08X\n",
 746                                 reg, read, (write & test[i] & mask));
 747                         *data = reg;
 748                         return true;
 749                 }
 750         }
 751         return false;
 752 }
 753
 754 static bool reg_set_and_check(struct e1000_adapter *adapter, uint64_t *data,
 755                               int reg, uint32_t mask, uint32_t write)
 756 {
 757         uint8_t __iomem *address = adapter->hw.hw_addr + reg;
 758         uint32_t read;
 759
 760         writel(write & mask, address);
 761         read = readl(address);
 762         if ((read & mask) != (write & mask)) {
 763                 DPRINTK(DRV, ERR, "set/check reg %04X test failed: "
 764                         "got 0x%08X expected 0x%08X\n",
 765                         reg, (read & mask), (write & mask));
 766                 *data = reg;
 767                 return true;
 768         }
 769         return false;
 770 }
 771
 772 #define REG_PATTERN_TEST(reg, mask, write)                           \
 773         do {                                                         \
 774                 if (reg_pattern_test(adapter, data,                  \
 775                              (adapter->hw.mac_type >= e1000_82543)   \
 776                              ? E1000_##reg : E1000_82542_##reg,      \
 777                              mask, write))                           \
 778                         return 1;                                    \
 779         } while (0)
 780
 781 #define REG_SET_AND_CHECK(reg, mask, write)                          \
 782         do {                                                         \
 783                 if (reg_set_and_check(adapter, data,                 \
 784                               (adapter->hw.mac_type >= e1000_82543)  \
 785                               ? E1000_##reg : E1000_82542_##reg,     \
 786                               mask, write))                          \
 787                         return 1;                                    \
 788         } while (0)
 789
 790 static int
 791 e1000_reg_test(struct e1000_adapter *adapter, uint64_t *data)
 792 {
 793         uint32_t value, before, after;
 794         uint32_t i, toggle;
 795
 796         /* The status register is Read Only, so a write should fail.
 797          * Some bits that get toggled are ignored.
 798          */
 799         switch (adapter->hw.mac_type) {
 800         /* there are several bits on newer hardware that are r/w */
 801         case e1000_82571:
 802         case e1000_82572:
 803         case e1000_80003es2lan:
 804                 toggle = 0x7FFFF3FF;
 805                 break;
 806         case e1000_82573:
 807         case e1000_ich8lan:
 808                 toggle = 0x7FFFF033;
 809                 break;
 810         default:
 811                 toggle = 0xFFFFF833;
 812                 break;
 813         }
 814
 815         before = E1000_READ_REG(&adapter->hw, STATUS);
 816         value = (E1000_READ_REG(&adapter->hw, STATUS) & toggle);
 817         E1000_WRITE_REG(&adapter->hw, STATUS, toggle);
 818         after = E1000_READ_REG(&adapter->hw, STATUS) & toggle;
 819         if (value != after) {
 820                 DPRINTK(DRV, ERR, "failed STATUS register test got: "
 821                         "0x%08X expected: 0x%08X\n", after, value);
 822                 *data = 1;
 823                 return 1;
 824         }
 825         /* restore previous status */
 826         E1000_WRITE_REG(&adapter->hw, STATUS, before);
 827
 828         if (adapter->hw.mac_type != e1000_ich8lan) {
 829                 REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 830                 REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
 831                 REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
 832                 REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
 833         }
 834
 835         REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
 836         REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 837         REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
 838         REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
 839         REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
 840         REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
 841         REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
 842         REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 843         REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 844         REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
 845
 846         REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
 847
 848         before = (adapter->hw.mac_type == e1000_ich8lan ?
 849                   0x06C3B33E : 0x06DFB3FE);
 850         REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
 851         REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
 852
 853         if (adapter->hw.mac_type >= e1000_82543) {
 854
 855                 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
 856                 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 857                 if (adapter->hw.mac_type != e1000_ich8lan)
 858                         REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
 859                 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 860                 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
 861                 value = (adapter->hw.mac_type == e1000_ich8lan ?
 862                          E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES);
 863                 for (i = 0; i < value; i++) {
 864                         REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF,
 865                                          0xFFFFFFFF);
 866                 }
 867
 868         } else {
 869
 870                 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
 871                 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
 872                 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
 873                 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
 874
 875         }
 876
 877         value = (adapter->hw.mac_type == e1000_ich8lan ?
 878                         E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE);
 879         for (i = 0; i < value; i++)
 880                 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
 881
 882         *data = 0;
 883         return 0;
 884 }
 885
 886 static int
 887 e1000_eeprom_test(struct e1000_adapter *adapter, uint64_t *data)
 888 {
 889         uint16_t temp;
 890         uint16_t checksum = 0;
 891         uint16_t i;
 892
 893         *data = 0;
 894         /* Read and add up the contents of the EEPROM */
 895         for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
 896                 if ((e1000_read_eeprom(&adapter->hw, i, 1, &temp)) < 0) {
 897                         *data = 1;
 898                         break;
 899                 }
 900                 checksum += temp;
 901         }
 902
 903         /* If Checksum is not Correct return error else test passed */
 904         if ((checksum != (uint16_t) EEPROM_SUM) && !(*data))
 905                 *data = 2;
 906
 907         return *data;
 908 }
 909
 910 static irqreturn_t
 911 e1000_test_intr(int irq, void *data)
 912 {
 913         struct net_device *netdev = (struct net_device *) data;
 914         struct e1000_adapter *adapter = netdev_priv(netdev);
 915
 916         adapter->test_icr |= E1000_READ_REG(&adapter->hw, ICR);
 917
 918         return IRQ_HANDLED;
 919 }
 920
 921 static int
 922 e1000_intr_test(struct e1000_adapter *adapter, uint64_t *data)
 923 {
 924         struct net_device *netdev = adapter->netdev;
 925         uint32_t mask, i=0, shared_int = TRUE;
 926         uint32_t irq = adapter->pdev->irq;
 927
 928         *data = 0;
 929
 930         /* NOTE: we don't test MSI interrupts here, yet */
 931         /* Hook up test interrupt handler just for this test */
 932         if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 933                          netdev))
 934                 shared_int = FALSE;
 935         else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
 936                  netdev->name, netdev)) {
 937                 *data = 1;
 938                 return -1;
 939         }
 940         DPRINTK(HW, INFO, "testing %s interrupt\n",
 941                 (shared_int ? "shared" : "unshared"));
 942
 943         /* Disable all the interrupts */
 944         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 945         msleep(10);
 946
 947         /* Test each interrupt */
 948         for (; i < 10; i++) {
 949
 950                 if (adapter->hw.mac_type == e1000_ich8lan && i == 8)
 951                         continue;
 952
 953                 /* Interrupt to test */
 954                 mask = 1 << i;
 955
 956                 if (!shared_int) {
 957                         /* Disable the interrupt to be reported in
 958                          * the cause register and then force the same
 959                          * interrupt and see if one gets posted.  If
 960                          * an interrupt was posted to the bus, the
 961                          * test failed.
 962                          */
 963                         adapter->test_icr = 0;
 964                         E1000_WRITE_REG(&adapter->hw, IMC, mask);
 965                         E1000_WRITE_REG(&adapter->hw, ICS, mask);
 966                         msleep(10);
 967
 968                         if (adapter->test_icr & mask) {
 969                                 *data = 3;
 970                                 break;
 971                         }
 972                 }
 973
 974                 /* Enable the interrupt to be reported in
 975                  * the cause register and then force the same
 976                  * interrupt and see if one gets posted.  If
 977                  * an interrupt was not posted to the bus, the
 978                  * test failed.
 979                  */
 980                 adapter->test_icr = 0;
 981                 E1000_WRITE_REG(&adapter->hw, IMS, mask);
 982                 E1000_WRITE_REG(&adapter->hw, ICS, mask);
 983                 msleep(10);
 984
 985                 if (!(adapter->test_icr & mask)) {
 986                         *data = 4;
 987                         break;
 988                 }
 989
 990                 if (!shared_int) {
 991                         /* Disable the other interrupts to be reported in
 992                          * the cause register and then force the other
 993                          * interrupts and see if any get posted.  If
 994                          * an interrupt was posted to the bus, the
 995                          * test failed.
 996                          */
 997                         adapter->test_icr = 0;
 998                         E1000_WRITE_REG(&adapter->hw, IMC, ~mask & 0x00007FFF);
 999                         E1000_WRITE_REG(&adapter->hw, ICS, ~mask & 0x00007FFF);
1000                         msleep(10);
1001
1002                         if (adapter->test_icr) {
1003                                 *data = 5;
1004                                 break;
1005                         }
1006                 }
1007         }
1008
1009         /* Disable all the interrupts */
1010         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
1011         msleep(10);
1012
1013         /* Unhook test interrupt handler */
1014         free_irq(irq, netdev);
1015
1016         return *data;
1017 }
1018
1019 static void
1020 e1000_free_desc_rings(struct e1000_adapter *adapter)
1021 {
1022         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1023         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1024         struct pci_dev *pdev = adapter->pdev;
1025         int i;
1026
1027         if (txdr->desc && txdr->buffer_info) {
1028                 for (i = 0; i < txdr->count; i++) {
1029                         if (txdr->buffer_info[i].dma)
1030                                 pci_unmap_single(pdev, txdr->buffer_info[i].dma,
1031                                                  txdr->buffer_info[i].length,
1032                                                  PCI_DMA_TODEVICE);
1033                         if (txdr->buffer_info[i].skb)
1034                                 dev_kfree_skb(txdr->buffer_info[i].skb);
1035                 }
1036         }
1037
1038         if (rxdr->desc && rxdr->buffer_info) {
1039                 for (i = 0; i < rxdr->count; i++) {
1040                         if (rxdr->buffer_info[i].dma)
1041                                 pci_unmap_single(pdev, rxdr->buffer_info[i].dma,
1042                                                  rxdr->buffer_info[i].length,
1043                                                  PCI_DMA_FROMDEVICE);
1044                         if (rxdr->buffer_info[i].skb)
1045                                 dev_kfree_skb(rxdr->buffer_info[i].skb);
1046                 }
1047         }
1048
1049         if (txdr->desc) {
1050                 pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma);
1051                 txdr->desc = NULL;
1052         }
1053         if (rxdr->desc) {
1054                 pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma);
1055                 rxdr->desc = NULL;
1056         }
1057
1058         kfree(txdr->buffer_info);
1059         txdr->buffer_info = NULL;
1060         kfree(rxdr->buffer_info);
1061         rxdr->buffer_info = NULL;
1062
1063         return;
1064 }
1065
1066 static int
1067 e1000_setup_desc_rings(struct e1000_adapter *adapter)
1068 {
1069         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1070         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1071         struct pci_dev *pdev = adapter->pdev;
1072         uint32_t rctl;
1073         int i, ret_val;
1074
1075         /* Setup Tx descriptor ring and Tx buffers */
1076
1077         if (!txdr->count)
1078                 txdr->count = E1000_DEFAULT_TXD;
1079
1080         if (!(txdr->buffer_info = kcalloc(txdr->count,
1081                                           sizeof(struct e1000_buffer),
1082                                           GFP_KERNEL))) {
1083                 ret_val = 1;
1084                 goto err_nomem;
1085         }
1086
1087         txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
1088         txdr->size = ALIGN(txdr->size, 4096);
1089         if (!(txdr->desc = pci_alloc_consistent(pdev, txdr->size,
1090                                                 &txdr->dma))) {
1091                 ret_val = 2;
1092                 goto err_nomem;
1093         }
1094         memset(txdr->desc, 0, txdr->size);
1095         txdr->next_to_use = txdr->next_to_clean = 0;
1096
1097         E1000_WRITE_REG(&adapter->hw, TDBAL,
1098                         ((uint64_t) txdr->dma & 0x00000000FFFFFFFF));
1099         E1000_WRITE_REG(&adapter->hw, TDBAH, ((uint64_t) txdr->dma >> 32));
1100         E1000_WRITE_REG(&adapter->hw, TDLEN,
1101                         txdr->count * sizeof(struct e1000_tx_desc));
1102         E1000_WRITE_REG(&adapter->hw, TDH, 0);
1103         E1000_WRITE_REG(&adapter->hw, TDT, 0);
1104         E1000_WRITE_REG(&adapter->hw, TCTL,
1105                         E1000_TCTL_PSP | E1000_TCTL_EN |
1106                         E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1107                         E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1108
1109         for (i = 0; i < txdr->count; i++) {
1110                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
1111                 struct sk_buff *skb;
1112                 unsigned int size = 1024;
1113
1114                 if (!(skb = alloc_skb(size, GFP_KERNEL))) {
1115                         ret_val = 3;
1116                         goto err_nomem;
1117                 }
1118                 skb_put(skb, size);
1119                 txdr->buffer_info[i].skb = skb;
1120                 txdr->buffer_info[i].length = skb->len;
1121                 txdr->buffer_info[i].dma =
1122                         pci_map_single(pdev, skb->data, skb->len,
1123                                        PCI_DMA_TODEVICE);
1124                 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);
1125                 tx_desc->lower.data = cpu_to_le32(skb->len);
1126                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1127                                                    E1000_TXD_CMD_IFCS |
1128                                                    E1000_TXD_CMD_RPS);
1129                 tx_desc->upper.data = 0;
1130         }
1131
1132         /* Setup Rx descriptor ring and Rx buffers */
1133
1134         if (!rxdr->count)
1135                 rxdr->count = E1000_DEFAULT_RXD;
1136
1137         if (!(rxdr->buffer_info = kcalloc(rxdr->count,
1138                                           sizeof(struct e1000_buffer),
1139                                           GFP_KERNEL))) {
1140                 ret_val = 4;
1141                 goto err_nomem;
1142         }
1143
1144         rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
1145         if (!(rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma))) {
1146                 ret_val = 5;
1147                 goto err_nomem;
1148         }
1149         memset(rxdr->desc, 0, rxdr->size);
1150         rxdr->next_to_use = rxdr->next_to_clean = 0;
1151
1152         rctl = E1000_READ_REG(&adapter->hw, RCTL);
1153         E1000_WRITE_REG(&adapter->hw, RCTL, rctl & ~E1000_RCTL_EN);
1154         E1000_WRITE_REG(&adapter->hw, RDBAL,
1155                         ((uint64_t) rxdr->dma & 0xFFFFFFFF));
1156         E1000_WRITE_REG(&adapter->hw, RDBAH, ((uint64_t) rxdr->dma >> 32));
1157         E1000_WRITE_REG(&adapter->hw, RDLEN, rxdr->size);
1158         E1000_WRITE_REG(&adapter->hw, RDH, 0);
1159         E1000_WRITE_REG(&adapter->hw, RDT, 0);
1160         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1161                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1162                 (adapter->hw.mc_filter_type << E1000_RCTL_MO_SHIFT);
1163         E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
1164
1165         for (i = 0; i < rxdr->count; i++) {
1166                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
1167                 struct sk_buff *skb;
1168
1169                 if (!(skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN,
1170                                 GFP_KERNEL))) {
1171                         ret_val = 6;
1172                         goto err_nomem;
1173                 }
1174                 skb_reserve(skb, NET_IP_ALIGN);
1175                 rxdr->buffer_info[i].skb = skb;
1176                 rxdr->buffer_info[i].length = E1000_RXBUFFER_2048;
1177                 rxdr->buffer_info[i].dma =
1178                         pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048,
1179                                        PCI_DMA_FROMDEVICE);
1180                 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);
1181                 memset(skb->data, 0x00, skb->len);
1182         }
1183
1184         return 0;
1185
1186 err_nomem:
1187         e1000_free_desc_rings(adapter);
1188         return ret_val;
1189 }
1190
1191 static void
1192 e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1193 {
1194         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1195         e1000_write_phy_reg(&adapter->hw, 29, 0x001F);
1196         e1000_write_phy_reg(&adapter->hw, 30, 0x8FFC);
1197         e1000_write_phy_reg(&adapter->hw, 29, 0x001A);
1198         e1000_write_phy_reg(&adapter->hw, 30, 0x8FF0);
1199 }
1200
1201 static void
1202 e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
1203 {
1204         uint16_t phy_reg;
1205
1206         /* Because we reset the PHY above, we need to re-force TX_CLK in the
1207          * Extended PHY Specific Control Register to 25MHz clock.  This
1208          * value defaults back to a 2.5MHz clock when the PHY is reset.
1209          */
1210         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1211         phy_reg |= M88E1000_EPSCR_TX_CLK_25;
1212         e1000_write_phy_reg(&adapter->hw,
1213                 M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
1214
1215         /* In addition, because of the s/w reset above, we need to enable
1216          * CRS on TX.  This must be set for both full and half duplex
1217          * operation.
1218          */
1219         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1220         phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
1221         e1000_write_phy_reg(&adapter->hw,
1222                 M88E1000_PHY_SPEC_CTRL, phy_reg);
1223 }
1224
1225 static int
1226 e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
1227 {
1228         uint32_t ctrl_reg;
1229         uint16_t phy_reg;
1230
1231         /* Setup the Device Control Register for PHY loopback test. */
1232
1233         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1234         ctrl_reg |= (E1000_CTRL_ILOS |          /* Invert Loss-Of-Signal */
1235                      E1000_CTRL_FRCSPD |        /* Set the Force Speed Bit */
1236                      E1000_CTRL_FRCDPX |        /* Set the Force Duplex Bit */
1237                      E1000_CTRL_SPD_1000 |      /* Force Speed to 1000 */
1238                      E1000_CTRL_FD);            /* Force Duplex to FULL */
1239
1240         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1241
1242         /* Read the PHY Specific Control Register (0x10) */
1243         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1244
1245         /* Clear Auto-Crossover bits in PHY Specific Control Register
1246          * (bits 6:5).
1247          */
1248         phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
1249         e1000_write_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
1250
1251         /* Perform software reset on the PHY */
1252         e1000_phy_reset(&adapter->hw);
1253
1254         /* Have to setup TX_CLK and TX_CRS after software reset */
1255         e1000_phy_reset_clk_and_crs(adapter);
1256
1257         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8100);
1258
1259         /* Wait for reset to complete. */
1260         udelay(500);
1261
1262         /* Have to setup TX_CLK and TX_CRS after software reset */
1263         e1000_phy_reset_clk_and_crs(adapter);
1264
1265         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1266         e1000_phy_disable_receiver(adapter);
1267
1268         /* Set the loopback bit in the PHY control register. */
1269         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1270         phy_reg |= MII_CR_LOOPBACK;
1271         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1272
1273         /* Setup TX_CLK and TX_CRS one more time. */
1274         e1000_phy_reset_clk_and_crs(adapter);
1275
1276         /* Check Phy Configuration */
1277         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1278         if (phy_reg != 0x4100)
1279                  return 9;
1280
1281         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1282         if (phy_reg != 0x0070)
1283                 return 10;
1284
1285         e1000_read_phy_reg(&adapter->hw, 29, &phy_reg);
1286         if (phy_reg != 0x001A)
1287                 return 11;
1288
1289         return 0;
1290 }
1291
1292 static int
1293 e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1294 {
1295         uint32_t ctrl_reg = 0;
1296         uint32_t stat_reg = 0;
1297
1298         adapter->hw.autoneg = FALSE;
1299
1300         if (adapter->hw.phy_type == e1000_phy_m88) {
1301                 /* Auto-MDI/MDIX Off */
1302                 e1000_write_phy_reg(&adapter->hw,
1303                                     M88E1000_PHY_SPEC_CTRL, 0x0808);
1304                 /* reset to update Auto-MDI/MDIX */
1305                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x9140);
1306                 /* autoneg off */
1307                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8140);
1308         } else if (adapter->hw.phy_type == e1000_phy_gg82563)
1309                 e1000_write_phy_reg(&adapter->hw,
1310                                     GG82563_PHY_KMRN_MODE_CTRL,
1311                                     0x1CC);
1312
1313         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1314
1315         if (adapter->hw.phy_type == e1000_phy_ife) {
1316                 /* force 100, set loopback */
1317                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x6100);
1318
1319                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1320                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1321                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1322                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1323                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1324                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1325         } else {
1326                 /* force 1000, set loopback */
1327                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x4140);
1328
1329                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1330                 ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1331                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1332                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1333                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1334                              E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1335                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1336         }
1337
1338         if (adapter->hw.media_type == e1000_media_type_copper &&
1339            adapter->hw.phy_type == e1000_phy_m88)
1340                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1341         else {
1342                 /* Set the ILOS bit on the fiber Nic is half
1343                  * duplex link is detected. */
1344                 stat_reg = E1000_READ_REG(&adapter->hw, STATUS);
1345                 if ((stat_reg & E1000_STATUS_FD) == 0)
1346                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1347         }
1348
1349         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1350
1351         /* Disable the receiver on the PHY so when a cable is plugged in, the
1352          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1353          */
1354         if (adapter->hw.phy_type == e1000_phy_m88)
1355                 e1000_phy_disable_receiver(adapter);
1356
1357         udelay(500);
1358
1359         return 0;
1360 }
1361
1362 static int
1363 e1000_set_phy_loopback(struct e1000_adapter *adapter)
1364 {
1365         uint16_t phy_reg = 0;
1366         uint16_t count = 0;
1367
1368         switch (adapter->hw.mac_type) {
1369         case e1000_82543:
1370                 if (adapter->hw.media_type == e1000_media_type_copper) {
1371                         /* Attempt to setup Loopback mode on Non-integrated PHY.
1372                          * Some PHY registers get corrupted at random, so
1373                          * attempt this 10 times.
1374                          */
1375                         while (e1000_nonintegrated_phy_loopback(adapter) &&
1376                               count++ < 10);
1377                         if (count < 11)
1378                                 return 0;
1379                 }
1380                 break;
1381
1382         case e1000_82544:
1383         case e1000_82540:
1384         case e1000_82545:
1385         case e1000_82545_rev_3:
1386         case e1000_82546:
1387         case e1000_82546_rev_3:
1388         case e1000_82541:
1389         case e1000_82541_rev_2:
1390         case e1000_82547:
1391         case e1000_82547_rev_2:
1392         case e1000_82571:
1393         case e1000_82572:
1394         case e1000_82573:
1395         case e1000_80003es2lan:
1396         case e1000_ich8lan:
1397                 return e1000_integrated_phy_loopback(adapter);
1398                 break;
1399
1400         default:
1401                 /* Default PHY loopback work is to read the MII
1402                  * control register and assert bit 14 (loopback mode).
1403                  */
1404                 e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1405                 phy_reg |= MII_CR_LOOPBACK;
1406                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1407                 return 0;
1408                 break;
1409         }
1410
1411         return 8;
1412 }
1413
1414 static int
1415 e1000_setup_loopback_test(struct e1000_adapter *adapter)
1416 {
1417         struct e1000_hw *hw = &adapter->hw;
1418         uint32_t rctl;
1419
1420         if (hw->media_type == e1000_media_type_fiber ||
1421             hw->media_type == e1000_media_type_internal_serdes) {
1422                 switch (hw->mac_type) {
1423                 case e1000_82545:
1424                 case e1000_82546:
1425                 case e1000_82545_rev_3:
1426                 case e1000_82546_rev_3:
1427                         return e1000_set_phy_loopback(adapter);
1428                         break;
1429                 case e1000_82571:
1430                 case e1000_82572:
1431 #define E1000_SERDES_LB_ON 0x410
1432                         e1000_set_phy_loopback(adapter);
1433                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_ON);
1434                         msleep(10);
1435                         return 0;
1436                         break;
1437                 default:
1438                         rctl = E1000_READ_REG(hw, RCTL);
1439                         rctl |= E1000_RCTL_LBM_TCVR;
1440                         E1000_WRITE_REG(hw, RCTL, rctl);
1441                         return 0;
1442                 }
1443         } else if (hw->media_type == e1000_media_type_copper)
1444                 return e1000_set_phy_loopback(adapter);
1445
1446         return 7;
1447 }
1448
1449 static void
1450 e1000_loopback_cleanup(struct e1000_adapter *adapter)
1451 {
1452         struct e1000_hw *hw = &adapter->hw;
1453         uint32_t rctl;
1454         uint16_t phy_reg;
1455
1456         rctl = E1000_READ_REG(hw, RCTL);
1457         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1458         E1000_WRITE_REG(hw, RCTL, rctl);
1459
1460         switch (hw->mac_type) {
1461         case e1000_82571:
1462         case e1000_82572:
1463                 if (hw->media_type == e1000_media_type_fiber ||
1464                     hw->media_type == e1000_media_type_internal_serdes) {
1465 #define E1000_SERDES_LB_OFF 0x400
1466                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_OFF);
1467                         msleep(10);
1468                         break;
1469                 }
1470                 /* Fall Through */
1471         case e1000_82545:
1472         case e1000_82546:
1473         case e1000_82545_rev_3:
1474         case e1000_82546_rev_3:
1475         default:
1476                 hw->autoneg = TRUE;
1477                 if (hw->phy_type == e1000_phy_gg82563)
1478                         e1000_write_phy_reg(hw,
1479                                             GG82563_PHY_KMRN_MODE_CTRL,
1480                                             0x180);
1481                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1482                 if (phy_reg & MII_CR_LOOPBACK) {
1483                         phy_reg &= ~MII_CR_LOOPBACK;
1484                         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1485                         e1000_phy_reset(hw);
1486                 }
1487                 break;
1488         }
1489 }
1490
1491 static void
1492 e1000_create_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1493 {
1494         memset(skb->data, 0xFF, frame_size);
1495         frame_size &= ~1;
1496         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1497         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1498         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1499 }
1500
1501 static int
1502 e1000_check_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1503 {
1504         frame_size &= ~1;
1505         if (*(skb->data + 3) == 0xFF) {
1506                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1507                    (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
1508                         return 0;
1509                 }
1510         }
1511         return 13;
1512 }
1513
1514 static int
1515 e1000_run_loopback_test(struct e1000_adapter *adapter)
1516 {
1517         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1518         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1519         struct pci_dev *pdev = adapter->pdev;
1520         int i, j, k, l, lc, good_cnt, ret_val=0;
1521         unsigned long time;
1522
1523         E1000_WRITE_REG(&adapter->hw, RDT, rxdr->count - 1);
1524
1525         /* Calculate the loop count based on the largest descriptor ring
1526          * The idea is to wrap the largest ring a number of times using 64
1527          * send/receive pairs during each loop
1528          */
1529
1530         if (rxdr->count <= txdr->count)
1531                 lc = ((txdr->count / 64) * 2) + 1;
1532         else
1533                 lc = ((rxdr->count / 64) * 2) + 1;
1534
1535         k = l = 0;
1536         for (j = 0; j <= lc; j++) { /* loop count loop */
1537                 for (i = 0; i < 64; i++) { /* send the packets */
1538                         e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
1539                                         1024);
1540                         pci_dma_sync_single_for_device(pdev,
1541                                         txdr->buffer_info[k].dma,
1542                                         txdr->buffer_info[k].length,
1543                                         PCI_DMA_TODEVICE);
1544                         if (unlikely(++k == txdr->count)) k = 0;
1545                 }
1546                 E1000_WRITE_REG(&adapter->hw, TDT, k);
1547                 msleep(200);
1548                 time = jiffies; /* set the start time for the receive */
1549                 good_cnt = 0;
1550                 do { /* receive the sent packets */
1551                         pci_dma_sync_single_for_cpu(pdev,
1552                                         rxdr->buffer_info[l].dma,
1553                                         rxdr->buffer_info[l].length,
1554                                         PCI_DMA_FROMDEVICE);
1555
1556                         ret_val = e1000_check_lbtest_frame(
1557                                         rxdr->buffer_info[l].skb,
1558                                         1024);
1559                         if (!ret_val)
1560                                 good_cnt++;
1561                         if (unlikely(++l == rxdr->count)) l = 0;
1562                         /* time + 20 msecs (200 msecs on 2.4) is more than
1563                          * enough time to complete the receives, if it's
1564                          * exceeded, break and error off
1565                          */
1566                 } while (good_cnt < 64 && jiffies < (time + 20));
1567                 if (good_cnt != 64) {
1568                         ret_val = 13; /* ret_val is the same as mis-compare */
1569                         break;
1570                 }
1571                 if (jiffies >= (time + 2)) {
1572                         ret_val = 14; /* error code for time out error */
1573                         break;
1574                 }
1575         } /* end loop count loop */
1576         return ret_val;
1577 }
1578
1579 static int
1580 e1000_loopback_test(struct e1000_adapter *adapter, uint64_t *data)
1581 {
1582         /* PHY loopback cannot be performed if SoL/IDER
1583          * sessions are active */
1584         if (e1000_check_phy_reset_block(&adapter->hw)) {
1585                 DPRINTK(DRV, ERR, "Cannot do PHY loopback test "
1586                         "when SoL/IDER is active.\n");
1587                 *data = 0;
1588                 goto out;
1589         }
1590
1591         if ((*data = e1000_setup_desc_rings(adapter)))
1592                 goto out;
1593         if ((*data = e1000_setup_loopback_test(adapter)))
1594                 goto err_loopback;
1595         *data = e1000_run_loopback_test(adapter);
1596         e1000_loopback_cleanup(adapter);
1597
1598 err_loopback:
1599         e1000_free_desc_rings(adapter);
1600 out:
1601         return *data;
1602 }
1603
1604 static int
1605 e1000_link_test(struct e1000_adapter *adapter, uint64_t *data)
1606 {
1607         *data = 0;
1608         if (adapter->hw.media_type == e1000_media_type_internal_serdes) {
1609                 int i = 0;
1610                 adapter->hw.serdes_link_down = TRUE;
1611
1612                 /* On some blade server designs, link establishment
1613                  * could take as long as 2-3 minutes */
1614                 do {
1615                         e1000_check_for_link(&adapter->hw);
1616                         if (adapter->hw.serdes_link_down == FALSE)
1617                                 return *data;
1618                         msleep(20);
1619                 } while (i++ < 3750);
1620
1621                 *data = 1;
1622         } else {
1623                 e1000_check_for_link(&adapter->hw);
1624                 if (adapter->hw.autoneg)  /* if auto_neg is set wait for it */
1625                         msleep(4000);
1626
1627                 if (!(E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU)) {
1628                         *data = 1;
1629                 }
1630         }
1631         return *data;
1632 }
1633
1634 static int
1635 e1000_get_sset_count(struct net_device *netdev, int sset)
1636 {
1637         switch (sset) {
1638         case ETH_SS_TEST:
1639                 return E1000_TEST_LEN;
1640         case ETH_SS_STATS:
1641                 return E1000_STATS_LEN;
1642         default:
1643                 return -EOPNOTSUPP;
1644         }
1645 }
1646
1647 static void
1648 e1000_diag_test(struct net_device *netdev,
1649                    struct ethtool_test *eth_test, uint64_t *data)
1650 {
1651         struct e1000_adapter *adapter = netdev_priv(netdev);
1652         boolean_t if_running = netif_running(netdev);
1653
1654         set_bit(__E1000_TESTING, &adapter->flags);
1655         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1656                 /* Offline tests */
1657
1658                 /* save speed, duplex, autoneg settings */
1659                 uint16_t autoneg_advertised = adapter->hw.autoneg_advertised;
1660                 uint8_t forced_speed_duplex = adapter->hw.forced_speed_duplex;
1661                 uint8_t autoneg = adapter->hw.autoneg;
1662
1663                 DPRINTK(HW, INFO, "offline testing starting\n");
1664
1665                 /* Link test performed before hardware reset so autoneg doesn't
1666                  * interfere with test result */
1667                 if (e1000_link_test(adapter, &data[4]))
1668                         eth_test->flags |= ETH_TEST_FL_FAILED;
1669
1670                 if (if_running)
1671                         /* indicate we're in test mode */
1672                         dev_close(netdev);
1673                 else
1674                         e1000_reset(adapter);
1675
1676                 if (e1000_reg_test(adapter, &data[0]))
1677                         eth_test->flags |= ETH_TEST_FL_FAILED;
1678
1679                 e1000_reset(adapter);
1680                 if (e1000_eeprom_test(adapter, &data[1]))
1681                         eth_test->flags |= ETH_TEST_FL_FAILED;
1682
1683                 e1000_reset(adapter);
1684                 if (e1000_intr_test(adapter, &data[2]))
1685                         eth_test->flags |= ETH_TEST_FL_FAILED;
1686
1687                 e1000_reset(adapter);
1688                 /* make sure the phy is powered up */
1689                 e1000_power_up_phy(adapter);
1690                 if (e1000_loopback_test(adapter, &data[3]))
1691                         eth_test->flags |= ETH_TEST_FL_FAILED;
1692
1693                 /* restore speed, duplex, autoneg settings */
1694                 adapter->hw.autoneg_advertised = autoneg_advertised;
1695                 adapter->hw.forced_speed_duplex = forced_speed_duplex;
1696                 adapter->hw.autoneg = autoneg;
1697
1698                 e1000_reset(adapter);
1699                 clear_bit(__E1000_TESTING, &adapter->flags);
1700                 if (if_running)
1701                         dev_open(netdev);
1702         } else {
1703                 DPRINTK(HW, INFO, "online testing starting\n");
1704                 /* Online tests */
1705                 if (e1000_link_test(adapter, &data[4]))
1706                         eth_test->flags |= ETH_TEST_FL_FAILED;
1707
1708                 /* Online tests aren't run; pass by default */
1709                 data[0] = 0;
1710                 data[1] = 0;
1711                 data[2] = 0;
1712                 data[3] = 0;
1713
1714                 clear_bit(__E1000_TESTING, &adapter->flags);
1715         }
1716         msleep_interruptible(4 * 1000);
1717 }
1718
1719 static int e1000_wol_exclusion(struct e1000_adapter *adapter, struct ethtool_wolinfo *wol)
1720 {
1721         struct e1000_hw *hw = &adapter->hw;
1722         int retval = 1; /* fail by default */
1723
1724         switch (hw->device_id) {
1725         case E1000_DEV_ID_82542:
1726         case E1000_DEV_ID_82543GC_FIBER:
1727         case E1000_DEV_ID_82543GC_COPPER:
1728         case E1000_DEV_ID_82544EI_FIBER:
1729         case E1000_DEV_ID_82546EB_QUAD_COPPER:
1730         case E1000_DEV_ID_82545EM_FIBER:
1731         case E1000_DEV_ID_82545EM_COPPER:
1732         case E1000_DEV_ID_82546GB_QUAD_COPPER:
1733         case E1000_DEV_ID_82546GB_PCIE:
1734         case E1000_DEV_ID_82571EB_SERDES_QUAD:
1735                 /* these don't support WoL at all */
1736                 wol->supported = 0;
1737                 break;
1738         case E1000_DEV_ID_82546EB_FIBER:
1739         case E1000_DEV_ID_82546GB_FIBER:
1740         case E1000_DEV_ID_82571EB_FIBER:
1741         case E1000_DEV_ID_82571EB_SERDES:
1742         case E1000_DEV_ID_82571EB_COPPER:
1743                 /* Wake events not supported on port B */
1744                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) {
1745                         wol->supported = 0;
1746                         break;
1747                 }
1748                 /* return success for non excluded adapter ports */
1749                 retval = 0;
1750                 break;
1751         case E1000_DEV_ID_82571EB_QUAD_COPPER:
1752         case E1000_DEV_ID_82571EB_QUAD_FIBER:
1753         case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
1754         case E1000_DEV_ID_82571PT_QUAD_COPPER:
1755         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1756                 /* quad port adapters only support WoL on port A */
1757                 if (!adapter->quad_port_a) {
1758                         wol->supported = 0;
1759                         break;
1760                 }
1761                 /* return success for non excluded adapter ports */
1762                 retval = 0;
1763                 break;
1764         default:
1765                 /* dual port cards only support WoL on port A from now on
1766                  * unless it was enabled in the eeprom for port B
1767                  * so exclude FUNC_1 ports from having WoL enabled */
1768                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1 &&
1769                     !adapter->eeprom_wol) {
1770                         wol->supported = 0;
1771                         break;
1772                 }
1773
1774                 retval = 0;
1775         }
1776
1777         return retval;
1778 }
1779
1780 static void
1781 e1000_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1782 {
1783         struct e1000_adapter *adapter = netdev_priv(netdev);
1784
1785         wol->supported = WAKE_UCAST | WAKE_MCAST |
1786                          WAKE_BCAST | WAKE_MAGIC;
1787         wol->wolopts = 0;
1788
1789         /* this function will set ->supported = 0 and return 1 if wol is not
1790          * supported by this hardware */
1791         if (e1000_wol_exclusion(adapter, wol))
1792                 return;
1793
1794         /* apply any specific unsupported masks here */
1795         switch (adapter->hw.device_id) {
1796         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1797                 /* KSP3 does not suppport UCAST wake-ups */
1798                 wol->supported &= ~WAKE_UCAST;
1799
1800                 if (adapter->wol & E1000_WUFC_EX)
1801                         DPRINTK(DRV, ERR, "Interface does not support "
1802                         "directed (unicast) frame wake-up packets\n");
1803                 break;
1804         default:
1805                 break;
1806         }
1807
1808         if (adapter->wol & E1000_WUFC_EX)
1809                 wol->wolopts |= WAKE_UCAST;
1810         if (adapter->wol & E1000_WUFC_MC)
1811                 wol->wolopts |= WAKE_MCAST;
1812         if (adapter->wol & E1000_WUFC_BC)
1813                 wol->wolopts |= WAKE_BCAST;
1814         if (adapter->wol & E1000_WUFC_MAG)
1815                 wol->wolopts |= WAKE_MAGIC;
1816
1817         return;
1818 }
1819
1820 static int
1821 e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1822 {
1823         struct e1000_adapter *adapter = netdev_priv(netdev);
1824         struct e1000_hw *hw = &adapter->hw;
1825
1826         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
1827                 return -EOPNOTSUPP;
1828
1829         if (e1000_wol_exclusion(adapter, wol))
1830                 return wol->wolopts ? -EOPNOTSUPP : 0;
1831
1832         switch (hw->device_id) {
1833         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1834                 if (wol->wolopts & WAKE_UCAST) {
1835                         DPRINTK(DRV, ERR, "Interface does not support "
1836                         "directed (unicast) frame wake-up packets\n");
1837                         return -EOPNOTSUPP;
1838                 }
1839                 break;
1840         default:
1841                 break;
1842         }
1843
1844         /* these settings will always override what we currently have */
1845         adapter->wol = 0;
1846
1847         if (wol->wolopts & WAKE_UCAST)
1848                 adapter->wol |= E1000_WUFC_EX;
1849         if (wol->wolopts & WAKE_MCAST)
1850                 adapter->wol |= E1000_WUFC_MC;
1851         if (wol->wolopts & WAKE_BCAST)
1852                 adapter->wol |= E1000_WUFC_BC;
1853         if (wol->wolopts & WAKE_MAGIC)
1854                 adapter->wol |= E1000_WUFC_MAG;
1855
1856         return 0;
1857 }
1858
1859 /* toggle LED 4 times per second = 2 "blinks" per second */
1860 #define E1000_ID_INTERVAL       (HZ/4)
1861
1862 /* bit defines for adapter->led_status */
1863 #define E1000_LED_ON            0
1864
1865 static void
1866 e1000_led_blink_callback(unsigned long data)
1867 {
1868         struct e1000_adapter *adapter = (struct e1000_adapter *) data;
1869
1870         if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
1871                 e1000_led_off(&adapter->hw);
1872         else
1873                 e1000_led_on(&adapter->hw);
1874
1875         mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
1876 }
1877
1878 static int
1879 e1000_phys_id(struct net_device *netdev, uint32_t data)
1880 {
1881         struct e1000_adapter *adapter = netdev_priv(netdev);
1882
1883         if (!data)
1884                 data = INT_MAX;
1885
1886         if (adapter->hw.mac_type < e1000_82571) {
1887                 if (!adapter->blink_timer.function) {
1888                         init_timer(&adapter->blink_timer);
1889                         adapter->blink_timer.function = e1000_led_blink_callback;
1890                         adapter->blink_timer.data = (unsigned long) adapter;
1891                 }
1892                 e1000_setup_led(&adapter->hw);
1893                 mod_timer(&adapter->blink_timer, jiffies);
1894                 msleep_interruptible(data * 1000);
1895                 del_timer_sync(&adapter->blink_timer);
1896         } else if (adapter->hw.phy_type == e1000_phy_ife) {
1897                 if (!adapter->blink_timer.function) {
1898                         init_timer(&adapter->blink_timer);
1899                         adapter->blink_timer.function = e1000_led_blink_callback;
1900                         adapter->blink_timer.data = (unsigned long) adapter;
1901                 }
1902                 mod_timer(&adapter->blink_timer, jiffies);
1903                 msleep_interruptible(data * 1000);
1904                 del_timer_sync(&adapter->blink_timer);
1905                 e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0);
1906         } else {
1907                 e1000_blink_led_start(&adapter->hw);
1908                 msleep_interruptible(data * 1000);
1909         }
1910
1911         e1000_led_off(&adapter->hw);
1912         clear_bit(E1000_LED_ON, &adapter->led_status);
1913         e1000_cleanup_led(&adapter->hw);
1914
1915         return 0;
1916 }
1917
1918 static int
1919 e1000_nway_reset(struct net_device *netdev)
1920 {
1921         struct e1000_adapter *adapter = netdev_priv(netdev);
1922         if (netif_running(netdev))
1923                 e1000_reinit_locked(adapter);
1924         return 0;
1925 }
1926
1927 static void
1928 e1000_get_ethtool_stats(struct net_device *netdev,
1929                 struct ethtool_stats *stats, uint64_t *data)
1930 {
1931         struct e1000_adapter *adapter = netdev_priv(netdev);
1932         int i;
1933
1934         e1000_update_stats(adapter);
1935         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1936                 char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
1937                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1938                         sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
1939         }
1940 /*      BUG_ON(i != E1000_STATS_LEN); */
1941 }
1942
1943 static void
1944 e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
1945 {
1946         uint8_t *p = data;
1947         int i;
1948
1949         switch (stringset) {
1950         case ETH_SS_TEST:
1951                 memcpy(data, *e1000_gstrings_test,
1952                         sizeof(e1000_gstrings_test));
1953                 break;
1954         case ETH_SS_STATS:
1955                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1956                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1957                                ETH_GSTRING_LEN);
1958                         p += ETH_GSTRING_LEN;
1959                 }
1960 /*              BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
1961                 break;
1962         }
1963 }
1964
1965 static const struct ethtool_ops e1000_ethtool_ops = {
1966         .get_settings           = e1000_get_settings,
1967         .set_settings           = e1000_set_settings,
1968         .get_drvinfo            = e1000_get_drvinfo,
1969         .get_regs_len           = e1000_get_regs_len,
1970         .get_regs               = e1000_get_regs,
1971         .get_wol                = e1000_get_wol,
1972         .set_wol                = e1000_set_wol,
1973         .get_msglevel           = e1000_get_msglevel,
1974         .set_msglevel           = e1000_set_msglevel,
1975         .nway_reset             = e1000_nway_reset,
1976         .get_link               = ethtool_op_get_link,
1977         .get_eeprom_len         = e1000_get_eeprom_len,
1978         .get_eeprom             = e1000_get_eeprom,
1979         .set_eeprom             = e1000_set_eeprom,
1980         .get_ringparam          = e1000_get_ringparam,
1981         .set_ringparam          = e1000_set_ringparam,
1982         .get_pauseparam         = e1000_get_pauseparam,
1983         .set_pauseparam         = e1000_set_pauseparam,
1984         .get_rx_csum            = e1000_get_rx_csum,
1985         .set_rx_csum            = e1000_set_rx_csum,
1986         .get_tx_csum            = e1000_get_tx_csum,
1987         .set_tx_csum            = e1000_set_tx_csum,
1988         .set_sg                 = ethtool_op_set_sg,
1989         .set_tso                = e1000_set_tso,
1990         .self_test              = e1000_diag_test,
1991         .get_strings            = e1000_get_strings,
1992         .phys_id                = e1000_phys_id,
1993         .get_ethtool_stats      = e1000_get_ethtool_stats,
1994         .get_sset_count         = e1000_get_sset_count,
1995 };
1996
1997 void e1000_set_ethtool_ops(struct net_device *netdev)
1998 {
1999         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
2000 }