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 char e1000_driver_name[];
  36 extern char e1000_driver_version[];
  37
  38 extern int e1000_up(struct e1000_adapter *adapter);
  39 extern void e1000_down(struct e1000_adapter *adapter);
  40 extern void e1000_reinit_locked(struct e1000_adapter *adapter);
  41 extern void e1000_reset(struct e1000_adapter *adapter);
  42 extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx);
  43 extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
  44 extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
  45 extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
  46 extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
  47 extern void e1000_update_stats(struct e1000_adapter *adapter);
  48
  49
  50 struct e1000_stats {
  51         char stat_string[ETH_GSTRING_LEN];
  52         int sizeof_stat;
  53         int stat_offset;
  54 };
  55
  56 #define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \
  57                       offsetof(struct e1000_adapter, m)
  58 static const struct e1000_stats e1000_gstrings_stats[] = {
  59         { "rx_packets", E1000_STAT(stats.gprc) },
  60         { "tx_packets", E1000_STAT(stats.gptc) },
  61         { "rx_bytes", E1000_STAT(stats.gorcl) },
  62         { "tx_bytes", E1000_STAT(stats.gotcl) },
  63         { "rx_broadcast", E1000_STAT(stats.bprc) },
  64         { "tx_broadcast", E1000_STAT(stats.bptc) },
  65         { "rx_multicast", E1000_STAT(stats.mprc) },
  66         { "tx_multicast", E1000_STAT(stats.mptc) },
  67         { "rx_errors", E1000_STAT(stats.rxerrc) },
  68         { "tx_errors", E1000_STAT(stats.txerrc) },
  69         { "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
  70         { "multicast", E1000_STAT(stats.mprc) },
  71         { "collisions", E1000_STAT(stats.colc) },
  72         { "rx_length_errors", E1000_STAT(stats.rlerrc) },
  73         { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
  74         { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
  75         { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
  76         { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
  77         { "rx_missed_errors", E1000_STAT(stats.mpc) },
  78         { "tx_aborted_errors", E1000_STAT(stats.ecol) },
  79         { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
  80         { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
  81         { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
  82         { "tx_window_errors", E1000_STAT(stats.latecol) },
  83         { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
  84         { "tx_deferred_ok", E1000_STAT(stats.dc) },
  85         { "tx_single_coll_ok", E1000_STAT(stats.scc) },
  86         { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
  87         { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
  88         { "tx_restart_queue", E1000_STAT(restart_queue) },
  89         { "rx_long_length_errors", E1000_STAT(stats.roc) },
  90         { "rx_short_length_errors", E1000_STAT(stats.ruc) },
  91         { "rx_align_errors", E1000_STAT(stats.algnerrc) },
  92         { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
  93         { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
  94         { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
  95         { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
  96         { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
  97         { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
  98         { "rx_long_byte_count", E1000_STAT(stats.gorcl) },
  99         { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
 100         { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
 101         { "rx_header_split", E1000_STAT(rx_hdr_split) },
 102         { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
 103         { "tx_smbus", E1000_STAT(stats.mgptc) },
 104         { "rx_smbus", E1000_STAT(stats.mgprc) },
 105         { "dropped_smbus", E1000_STAT(stats.mgpdc) },
 106 };
 107
 108 #define E1000_QUEUE_STATS_LEN 0
 109 #define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
 110 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)
 111 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 112         "Register test  (offline)", "Eeprom test    (offline)",
 113         "Interrupt test (offline)", "Loopback test  (offline)",
 114         "Link test   (on/offline)"
 115 };
 116 #define E1000_TEST_LEN sizeof(e1000_gstrings_test) / ETH_GSTRING_LEN
 117
 118 static int
 119 e1000_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 120 {
 121         struct e1000_adapter *adapter = netdev_priv(netdev);
 122         struct e1000_hw *hw = &adapter->hw;
 123
 124         if (hw->media_type == e1000_media_type_copper) {
 125
 126                 ecmd->supported = (SUPPORTED_10baseT_Half |
 127                                    SUPPORTED_10baseT_Full |
 128                                    SUPPORTED_100baseT_Half |
 129                                    SUPPORTED_100baseT_Full |
 130                                    SUPPORTED_1000baseT_Full|
 131                                    SUPPORTED_Autoneg |
 132                                    SUPPORTED_TP);
 133                 if (hw->phy_type == e1000_phy_ife)
 134                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 135                 ecmd->advertising = ADVERTISED_TP;
 136
 137                 if (hw->autoneg == 1) {
 138                         ecmd->advertising |= ADVERTISED_Autoneg;
 139                         /* the e1000 autoneg seems to match ethtool nicely */
 140                         ecmd->advertising |= hw->autoneg_advertised;
 141                 }
 142
 143                 ecmd->port = PORT_TP;
 144                 ecmd->phy_address = hw->phy_addr;
 145
 146                 if (hw->mac_type == e1000_82543)
 147                         ecmd->transceiver = XCVR_EXTERNAL;
 148                 else
 149                         ecmd->transceiver = XCVR_INTERNAL;
 150
 151         } else {
 152                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 153                                      SUPPORTED_FIBRE |
 154                                      SUPPORTED_Autoneg);
 155
 156                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 157                                      ADVERTISED_FIBRE |
 158                                      ADVERTISED_Autoneg);
 159
 160                 ecmd->port = PORT_FIBRE;
 161
 162                 if (hw->mac_type >= e1000_82545)
 163                         ecmd->transceiver = XCVR_INTERNAL;
 164                 else
 165                         ecmd->transceiver = XCVR_EXTERNAL;
 166         }
 167
 168         if (E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU) {
 169
 170                 e1000_get_speed_and_duplex(hw, &adapter->link_speed,
 171                                                    &adapter->link_duplex);
 172                 ecmd->speed = adapter->link_speed;
 173
 174                 /* unfortunatly FULL_DUPLEX != DUPLEX_FULL
 175                  *          and HALF_DUPLEX != DUPLEX_HALF */
 176
 177                 if (adapter->link_duplex == FULL_DUPLEX)
 178                         ecmd->duplex = DUPLEX_FULL;
 179                 else
 180                         ecmd->duplex = DUPLEX_HALF;
 181         } else {
 182                 ecmd->speed = -1;
 183                 ecmd->duplex = -1;
 184         }
 185
 186         ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
 187                          hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 188         return 0;
 189 }
 190
 191 static int
 192 e1000_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 193 {
 194         struct e1000_adapter *adapter = netdev_priv(netdev);
 195         struct e1000_hw *hw = &adapter->hw;
 196
 197         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 198          * cannot be changed */
 199         if (e1000_check_phy_reset_block(hw)) {
 200                 DPRINTK(DRV, ERR, "Cannot change link characteristics "
 201                         "when SoL/IDER is active.\n");
 202                 return -EINVAL;
 203         }
 204
 205         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 206                 msleep(1);
 207
 208         if (ecmd->autoneg == AUTONEG_ENABLE) {
 209                 hw->autoneg = 1;
 210                 if (hw->media_type == e1000_media_type_fiber)
 211                         hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
 212                                      ADVERTISED_FIBRE |
 213                                      ADVERTISED_Autoneg;
 214                 else
 215                         hw->autoneg_advertised = ecmd->advertising |
 216                                                  ADVERTISED_TP |
 217                                                  ADVERTISED_Autoneg;
 218                 ecmd->advertising = hw->autoneg_advertised;
 219         } else
 220                 if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
 221                         clear_bit(__E1000_RESETTING, &adapter->flags);
 222                         return -EINVAL;
 223                 }
 224
 225         /* reset the link */
 226
 227         if (netif_running(adapter->netdev)) {
 228                 e1000_down(adapter);
 229                 e1000_up(adapter);
 230         } else
 231                 e1000_reset(adapter);
 232
 233         clear_bit(__E1000_RESETTING, &adapter->flags);
 234         return 0;
 235 }
 236
 237 static void
 238 e1000_get_pauseparam(struct net_device *netdev,
 239                      struct ethtool_pauseparam *pause)
 240 {
 241         struct e1000_adapter *adapter = netdev_priv(netdev);
 242         struct e1000_hw *hw = &adapter->hw;
 243
 244         pause->autoneg =
 245                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 246
 247         if (hw->fc == E1000_FC_RX_PAUSE)
 248                 pause->rx_pause = 1;
 249         else if (hw->fc == E1000_FC_TX_PAUSE)
 250                 pause->tx_pause = 1;
 251         else if (hw->fc == E1000_FC_FULL) {
 252                 pause->rx_pause = 1;
 253                 pause->tx_pause = 1;
 254         }
 255 }
 256
 257 static int
 258 e1000_set_pauseparam(struct net_device *netdev,
 259                      struct ethtool_pauseparam *pause)
 260 {
 261         struct e1000_adapter *adapter = netdev_priv(netdev);
 262         struct e1000_hw *hw = &adapter->hw;
 263         int retval = 0;
 264
 265         adapter->fc_autoneg = pause->autoneg;
 266
 267         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 268                 msleep(1);
 269
 270         if (pause->rx_pause && pause->tx_pause)
 271                 hw->fc = E1000_FC_FULL;
 272         else if (pause->rx_pause && !pause->tx_pause)
 273                 hw->fc = E1000_FC_RX_PAUSE;
 274         else if (!pause->rx_pause && pause->tx_pause)
 275                 hw->fc = E1000_FC_TX_PAUSE;
 276         else if (!pause->rx_pause && !pause->tx_pause)
 277                 hw->fc = E1000_FC_NONE;
 278
 279         hw->original_fc = hw->fc;
 280
 281         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 282                 if (netif_running(adapter->netdev)) {
 283                         e1000_down(adapter);
 284                         e1000_up(adapter);
 285                 } else
 286                         e1000_reset(adapter);
 287         } else
 288                 retval = ((hw->media_type == e1000_media_type_fiber) ?
 289                           e1000_setup_link(hw) : e1000_force_mac_fc(hw));
 290
 291         clear_bit(__E1000_RESETTING, &adapter->flags);
 292         return retval;
 293 }
 294
 295 static uint32_t
 296 e1000_get_rx_csum(struct net_device *netdev)
 297 {
 298         struct e1000_adapter *adapter = netdev_priv(netdev);
 299         return adapter->rx_csum;
 300 }
 301
 302 static int
 303 e1000_set_rx_csum(struct net_device *netdev, uint32_t data)
 304 {
 305         struct e1000_adapter *adapter = netdev_priv(netdev);
 306         adapter->rx_csum = data;
 307
 308         if (netif_running(netdev))
 309                 e1000_reinit_locked(adapter);
 310         else
 311                 e1000_reset(adapter);
 312         return 0;
 313 }
 314
 315 static uint32_t
 316 e1000_get_tx_csum(struct net_device *netdev)
 317 {
 318         return (netdev->features & NETIF_F_HW_CSUM) != 0;
 319 }
 320
 321 static int
 322 e1000_set_tx_csum(struct net_device *netdev, uint32_t data)
 323 {
 324         struct e1000_adapter *adapter = netdev_priv(netdev);
 325
 326         if (adapter->hw.mac_type < e1000_82543) {
 327                 if (!data)
 328                         return -EINVAL;
 329                 return 0;
 330         }
 331
 332         if (data)
 333                 netdev->features |= NETIF_F_HW_CSUM;
 334         else
 335                 netdev->features &= ~NETIF_F_HW_CSUM;
 336
 337         return 0;
 338 }
 339
 340 static int
 341 e1000_set_tso(struct net_device *netdev, uint32_t data)
 342 {
 343         struct e1000_adapter *adapter = netdev_priv(netdev);
 344         if ((adapter->hw.mac_type < e1000_82544) ||
 345             (adapter->hw.mac_type == e1000_82547))
 346                 return data ? -EINVAL : 0;
 347
 348         if (data)
 349                 netdev->features |= NETIF_F_TSO;
 350         else
 351                 netdev->features &= ~NETIF_F_TSO;
 352
 353         if (data)
 354                 netdev->features |= NETIF_F_TSO6;
 355         else
 356                 netdev->features &= ~NETIF_F_TSO6;
 357
 358         DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
 359         adapter->tso_force = TRUE;
 360         return 0;
 361 }
 362
 363 static uint32_t
 364 e1000_get_msglevel(struct net_device *netdev)
 365 {
 366         struct e1000_adapter *adapter = netdev_priv(netdev);
 367         return adapter->msg_enable;
 368 }
 369
 370 static void
 371 e1000_set_msglevel(struct net_device *netdev, uint32_t data)
 372 {
 373         struct e1000_adapter *adapter = netdev_priv(netdev);
 374         adapter->msg_enable = data;
 375 }
 376
 377 static int
 378 e1000_get_regs_len(struct net_device *netdev)
 379 {
 380 #define E1000_REGS_LEN 32
 381         return E1000_REGS_LEN * sizeof(uint32_t);
 382 }
 383
 384 static void
 385 e1000_get_regs(struct net_device *netdev,
 386                struct ethtool_regs *regs, void *p)
 387 {
 388         struct e1000_adapter *adapter = netdev_priv(netdev);
 389         struct e1000_hw *hw = &adapter->hw;
 390         uint32_t *regs_buff = p;
 391         uint16_t phy_data;
 392
 393         memset(p, 0, E1000_REGS_LEN * sizeof(uint32_t));
 394
 395         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 396
 397         regs_buff[0]  = E1000_READ_REG(hw, CTRL);
 398         regs_buff[1]  = E1000_READ_REG(hw, STATUS);
 399
 400         regs_buff[2]  = E1000_READ_REG(hw, RCTL);
 401         regs_buff[3]  = E1000_READ_REG(hw, RDLEN);
 402         regs_buff[4]  = E1000_READ_REG(hw, RDH);
 403         regs_buff[5]  = E1000_READ_REG(hw, RDT);
 404         regs_buff[6]  = E1000_READ_REG(hw, RDTR);
 405
 406         regs_buff[7]  = E1000_READ_REG(hw, TCTL);
 407         regs_buff[8]  = E1000_READ_REG(hw, TDLEN);
 408         regs_buff[9]  = E1000_READ_REG(hw, TDH);
 409         regs_buff[10] = E1000_READ_REG(hw, TDT);
 410         regs_buff[11] = E1000_READ_REG(hw, TIDV);
 411
 412         regs_buff[12] = adapter->hw.phy_type;  /* PHY type (IGP=1, M88=0) */
 413         if (hw->phy_type == e1000_phy_igp) {
 414                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 415                                     IGP01E1000_PHY_AGC_A);
 416                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
 417                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 418                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 419                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 420                                     IGP01E1000_PHY_AGC_B);
 421                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
 422                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 423                 regs_buff[14] = (uint32_t)phy_data; /* cable length */
 424                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 425                                     IGP01E1000_PHY_AGC_C);
 426                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
 427                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 428                 regs_buff[15] = (uint32_t)phy_data; /* cable length */
 429                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 430                                     IGP01E1000_PHY_AGC_D);
 431                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
 432                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 433                 regs_buff[16] = (uint32_t)phy_data; /* cable length */
 434                 regs_buff[17] = 0; /* extended 10bt distance (not needed) */
 435                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 436                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
 437                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 438                 regs_buff[18] = (uint32_t)phy_data; /* cable polarity */
 439                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 440                                     IGP01E1000_PHY_PCS_INIT_REG);
 441                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
 442                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 443                 regs_buff[19] = (uint32_t)phy_data; /* cable polarity */
 444                 regs_buff[20] = 0; /* polarity correction enabled (always) */
 445                 regs_buff[22] = 0; /* phy receive errors (unavailable) */
 446                 regs_buff[23] = regs_buff[18]; /* mdix mode */
 447                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 448         } else {
 449                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 450                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 451                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 452                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 453                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 454                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 455                 regs_buff[17] = (uint32_t)phy_data; /* extended 10bt distance */
 456                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 457                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 458                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 459                 /* phy receive errors */
 460                 regs_buff[22] = adapter->phy_stats.receive_errors;
 461                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 462         }
 463         regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
 464         e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
 465         regs_buff[24] = (uint32_t)phy_data;  /* phy local receiver status */
 466         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 467         if (hw->mac_type >= e1000_82540 &&
 468             hw->mac_type < e1000_82571 &&
 469             hw->media_type == e1000_media_type_copper) {
 470                 regs_buff[26] = E1000_READ_REG(hw, MANC);
 471         }
 472 }
 473
 474 static int
 475 e1000_get_eeprom_len(struct net_device *netdev)
 476 {
 477         struct e1000_adapter *adapter = netdev_priv(netdev);
 478         return adapter->hw.eeprom.word_size * 2;
 479 }
 480
 481 static int
 482 e1000_get_eeprom(struct net_device *netdev,
 483                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 484 {
 485         struct e1000_adapter *adapter = netdev_priv(netdev);
 486         struct e1000_hw *hw = &adapter->hw;
 487         uint16_t *eeprom_buff;
 488         int first_word, last_word;
 489         int ret_val = 0;
 490         uint16_t i;
 491
 492         if (eeprom->len == 0)
 493                 return -EINVAL;
 494
 495         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 496
 497         first_word = eeprom->offset >> 1;
 498         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 499
 500         eeprom_buff = kmalloc(sizeof(uint16_t) *
 501                         (last_word - first_word + 1), GFP_KERNEL);
 502         if (!eeprom_buff)
 503                 return -ENOMEM;
 504
 505         if (hw->eeprom.type == e1000_eeprom_spi)
 506                 ret_val = e1000_read_eeprom(hw, first_word,
 507                                             last_word - first_word + 1,
 508                                             eeprom_buff);
 509         else {
 510                 for (i = 0; i < last_word - first_word + 1; i++)
 511                         if ((ret_val = e1000_read_eeprom(hw, first_word + i, 1,
 512                                                         &eeprom_buff[i])))
 513                                 break;
 514         }
 515
 516         /* Device's eeprom is always little-endian, word addressable */
 517         for (i = 0; i < last_word - first_word + 1; i++)
 518                 le16_to_cpus(&eeprom_buff[i]);
 519
 520         memcpy(bytes, (uint8_t *)eeprom_buff + (eeprom->offset & 1),
 521                         eeprom->len);
 522         kfree(eeprom_buff);
 523
 524         return ret_val;
 525 }
 526
 527 static int
 528 e1000_set_eeprom(struct net_device *netdev,
 529                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 530 {
 531         struct e1000_adapter *adapter = netdev_priv(netdev);
 532         struct e1000_hw *hw = &adapter->hw;
 533         uint16_t *eeprom_buff;
 534         void *ptr;
 535         int max_len, first_word, last_word, ret_val = 0;
 536         uint16_t i;
 537
 538         if (eeprom->len == 0)
 539                 return -EOPNOTSUPP;
 540
 541         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 542                 return -EFAULT;
 543
 544         max_len = hw->eeprom.word_size * 2;
 545
 546         first_word = eeprom->offset >> 1;
 547         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 548         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 549         if (!eeprom_buff)
 550                 return -ENOMEM;
 551
 552         ptr = (void *)eeprom_buff;
 553
 554         if (eeprom->offset & 1) {
 555                 /* need read/modify/write of first changed EEPROM word */
 556                 /* only the second byte of the word is being modified */
 557                 ret_val = e1000_read_eeprom(hw, first_word, 1,
 558                                             &eeprom_buff[0]);
 559                 ptr++;
 560         }
 561         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 562                 /* need read/modify/write of last changed EEPROM word */
 563                 /* only the first byte of the word is being modified */
 564                 ret_val = e1000_read_eeprom(hw, last_word, 1,
 565                                   &eeprom_buff[last_word - first_word]);
 566         }
 567
 568         /* Device's eeprom is always little-endian, word addressable */
 569         for (i = 0; i < last_word - first_word + 1; i++)
 570                 le16_to_cpus(&eeprom_buff[i]);
 571
 572         memcpy(ptr, bytes, eeprom->len);
 573
 574         for (i = 0; i < last_word - first_word + 1; i++)
 575                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 576
 577         ret_val = e1000_write_eeprom(hw, first_word,
 578                                      last_word - first_word + 1, eeprom_buff);
 579
 580         /* Update the checksum over the first part of the EEPROM if needed
 581          * and flush shadow RAM for 82573 conrollers */
 582         if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) ||
 583                                 (hw->mac_type == e1000_82573)))
 584                 e1000_update_eeprom_checksum(hw);
 585
 586         kfree(eeprom_buff);
 587         return ret_val;
 588 }
 589
 590 static void
 591 e1000_get_drvinfo(struct net_device *netdev,
 592                        struct ethtool_drvinfo *drvinfo)
 593 {
 594         struct e1000_adapter *adapter = netdev_priv(netdev);
 595         char firmware_version[32];
 596         uint16_t eeprom_data;
 597
 598         strncpy(drvinfo->driver,  e1000_driver_name, 32);
 599         strncpy(drvinfo->version, e1000_driver_version, 32);
 600
 601         /* EEPROM image version # is reported as firmware version # for
 602          * 8257{1|2|3} controllers */
 603         e1000_read_eeprom(&adapter->hw, 5, 1, &eeprom_data);
 604         switch (adapter->hw.mac_type) {
 605         case e1000_82571:
 606         case e1000_82572:
 607         case e1000_82573:
 608         case e1000_80003es2lan:
 609         case e1000_ich8lan:
 610                 sprintf(firmware_version, "%d.%d-%d",
 611                         (eeprom_data & 0xF000) >> 12,
 612                         (eeprom_data & 0x0FF0) >> 4,
 613                         eeprom_data & 0x000F);
 614                 break;
 615         default:
 616                 sprintf(firmware_version, "N/A");
 617         }
 618
 619         strncpy(drvinfo->fw_version, firmware_version, 32);
 620         strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 621         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 622         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 623 }
 624
 625 static void
 626 e1000_get_ringparam(struct net_device *netdev,
 627                     struct ethtool_ringparam *ring)
 628 {
 629         struct e1000_adapter *adapter = netdev_priv(netdev);
 630         e1000_mac_type mac_type = adapter->hw.mac_type;
 631         struct e1000_tx_ring *txdr = adapter->tx_ring;
 632         struct e1000_rx_ring *rxdr = adapter->rx_ring;
 633
 634         ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
 635                 E1000_MAX_82544_RXD;
 636         ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
 637                 E1000_MAX_82544_TXD;
 638         ring->rx_mini_max_pending = 0;
 639         ring->rx_jumbo_max_pending = 0;
 640         ring->rx_pending = rxdr->count;
 641         ring->tx_pending = txdr->count;
 642         ring->rx_mini_pending = 0;
 643         ring->rx_jumbo_pending = 0;
 644 }
 645
 646 static int
 647 e1000_set_ringparam(struct net_device *netdev,
 648                     struct ethtool_ringparam *ring)
 649 {
 650         struct e1000_adapter *adapter = netdev_priv(netdev);
 651         e1000_mac_type mac_type = adapter->hw.mac_type;
 652         struct e1000_tx_ring *txdr, *tx_old;
 653         struct e1000_rx_ring *rxdr, *rx_old;
 654         int i, err;
 655
 656         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 657                 return -EINVAL;
 658
 659         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 660                 msleep(1);
 661
 662         if (netif_running(adapter->netdev))
 663                 e1000_down(adapter);
 664
 665         tx_old = adapter->tx_ring;
 666         rx_old = adapter->rx_ring;
 667
 668         err = -ENOMEM;
 669         txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL);
 670         if (!txdr)
 671                 goto err_alloc_tx;
 672
 673         rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL);
 674         if (!rxdr)
 675                 goto err_alloc_rx;
 676
 677         adapter->tx_ring = txdr;
 678         adapter->rx_ring = rxdr;
 679
 680         rxdr->count = max(ring->rx_pending,(uint32_t)E1000_MIN_RXD);
 681         rxdr->count = min(rxdr->count,(uint32_t)(mac_type < e1000_82544 ?
 682                 E1000_MAX_RXD : E1000_MAX_82544_RXD));
 683         rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 684
 685         txdr->count = max(ring->tx_pending,(uint32_t)E1000_MIN_TXD);
 686         txdr->count = min(txdr->count,(uint32_t)(mac_type < e1000_82544 ?
 687                 E1000_MAX_TXD : E1000_MAX_82544_TXD));
 688         txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 689
 690         for (i = 0; i < adapter->num_tx_queues; i++)
 691                 txdr[i].count = txdr->count;
 692         for (i = 0; i < adapter->num_rx_queues; i++)
 693                 rxdr[i].count = rxdr->count;
 694
 695         if (netif_running(adapter->netdev)) {
 696                 /* Try to get new resources before deleting old */
 697                 if ((err = e1000_setup_all_rx_resources(adapter)))
 698                         goto err_setup_rx;
 699                 if ((err = e1000_setup_all_tx_resources(adapter)))
 700                         goto err_setup_tx;
 701
 702                 /* save the new, restore the old in order to free it,
 703                  * then restore the new back again */
 704
 705                 adapter->rx_ring = rx_old;
 706                 adapter->tx_ring = tx_old;
 707                 e1000_free_all_rx_resources(adapter);
 708                 e1000_free_all_tx_resources(adapter);
 709                 kfree(tx_old);
 710                 kfree(rx_old);
 711                 adapter->rx_ring = rxdr;
 712                 adapter->tx_ring = txdr;
 713                 if ((err = e1000_up(adapter)))
 714                         goto err_setup;
 715         }
 716
 717         clear_bit(__E1000_RESETTING, &adapter->flags);
 718         return 0;
 719 err_setup_tx:
 720         e1000_free_all_rx_resources(adapter);
 721 err_setup_rx:
 722         adapter->rx_ring = rx_old;
 723         adapter->tx_ring = tx_old;
 724         kfree(rxdr);
 725 err_alloc_rx:
 726         kfree(txdr);
 727 err_alloc_tx:
 728         e1000_up(adapter);
 729 err_setup:
 730         clear_bit(__E1000_RESETTING, &adapter->flags);
 731         return err;
 732 }
 733
 734 #define REG_PATTERN_TEST(R, M, W)                                              \
 735 {                                                                              \
 736         uint32_t pat, value;                                                   \
 737         uint32_t test[] =                                                      \
 738                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};              \
 739         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {              \
 740                 E1000_WRITE_REG(&adapter->hw, R, (test[pat] & W));             \
 741                 value = E1000_READ_REG(&adapter->hw, R);                       \
 742                 if (value != (test[pat] & W & M)) {                             \
 743                         DPRINTK(DRV, ERR, "pattern test reg %04X failed: got " \
 744                                 "0x%08X expected 0x%08X\n",                    \
 745                                 E1000_##R, value, (test[pat] & W & M));        \
 746                         *data = (adapter->hw.mac_type < e1000_82543) ?         \
 747                                 E1000_82542_##R : E1000_##R;                   \
 748                         return 1;                                              \
 749                 }                                                              \
 750         }                                                                      \
 751 }
 752
 753 #define REG_SET_AND_CHECK(R, M, W)                                             \
 754 {                                                                              \
 755         uint32_t value;                                                        \
 756         E1000_WRITE_REG(&adapter->hw, R, W & M);                               \
 757         value = E1000_READ_REG(&adapter->hw, R);                               \
 758         if ((W & M) != (value & M)) {                                          \
 759                 DPRINTK(DRV, ERR, "set/check reg %04X test failed: got 0x%08X "\
 760                         "expected 0x%08X\n", E1000_##R, (value & M), (W & M)); \
 761                 *data = (adapter->hw.mac_type < e1000_82543) ?                 \
 762                         E1000_82542_##R : E1000_##R;                           \
 763                 return 1;                                                      \
 764         }                                                                      \
 765 }
 766
 767 static int
 768 e1000_reg_test(struct e1000_adapter *adapter, uint64_t *data)
 769 {
 770         uint32_t value, before, after;
 771         uint32_t i, toggle;
 772
 773         /* The status register is Read Only, so a write should fail.
 774          * Some bits that get toggled are ignored.
 775          */
 776         switch (adapter->hw.mac_type) {
 777         /* there are several bits on newer hardware that are r/w */
 778         case e1000_82571:
 779         case e1000_82572:
 780         case e1000_80003es2lan:
 781                 toggle = 0x7FFFF3FF;
 782                 break;
 783         case e1000_82573:
 784         case e1000_ich8lan:
 785                 toggle = 0x7FFFF033;
 786                 break;
 787         default:
 788                 toggle = 0xFFFFF833;
 789                 break;
 790         }
 791
 792         before = E1000_READ_REG(&adapter->hw, STATUS);
 793         value = (E1000_READ_REG(&adapter->hw, STATUS) & toggle);
 794         E1000_WRITE_REG(&adapter->hw, STATUS, toggle);
 795         after = E1000_READ_REG(&adapter->hw, STATUS) & toggle;
 796         if (value != after) {
 797                 DPRINTK(DRV, ERR, "failed STATUS register test got: "
 798                         "0x%08X expected: 0x%08X\n", after, value);
 799                 *data = 1;
 800                 return 1;
 801         }
 802         /* restore previous status */
 803         E1000_WRITE_REG(&adapter->hw, STATUS, before);
 804
 805         if (adapter->hw.mac_type != e1000_ich8lan) {
 806                 REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 807                 REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
 808                 REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
 809                 REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
 810         }
 811
 812         REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
 813         REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 814         REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
 815         REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
 816         REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
 817         REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
 818         REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
 819         REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 820         REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 821         REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
 822
 823         REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
 824
 825         before = (adapter->hw.mac_type == e1000_ich8lan ?
 826                   0x06C3B33E : 0x06DFB3FE);
 827         REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
 828         REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
 829
 830         if (adapter->hw.mac_type >= e1000_82543) {
 831
 832                 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
 833                 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 834                 if (adapter->hw.mac_type != e1000_ich8lan)
 835                         REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
 836                 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 837                 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
 838                 value = (adapter->hw.mac_type == e1000_ich8lan ?
 839                          E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES);
 840                 for (i = 0; i < value; i++) {
 841                         REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF,
 842                                          0xFFFFFFFF);
 843                 }
 844
 845         } else {
 846
 847                 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
 848                 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
 849                 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
 850                 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
 851
 852         }
 853
 854         value = (adapter->hw.mac_type == e1000_ich8lan ?
 855                         E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE);
 856         for (i = 0; i < value; i++)
 857                 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
 858
 859         *data = 0;
 860         return 0;
 861 }
 862
 863 static int
 864 e1000_eeprom_test(struct e1000_adapter *adapter, uint64_t *data)
 865 {
 866         uint16_t temp;
 867         uint16_t checksum = 0;
 868         uint16_t i;
 869
 870         *data = 0;
 871         /* Read and add up the contents of the EEPROM */
 872         for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
 873                 if ((e1000_read_eeprom(&adapter->hw, i, 1, &temp)) < 0) {
 874                         *data = 1;
 875                         break;
 876                 }
 877                 checksum += temp;
 878         }
 879
 880         /* If Checksum is not Correct return error else test passed */
 881         if ((checksum != (uint16_t) EEPROM_SUM) && !(*data))
 882                 *data = 2;
 883
 884         return *data;
 885 }
 886
 887 static irqreturn_t
 888 e1000_test_intr(int irq, void *data)
 889 {
 890         struct net_device *netdev = (struct net_device *) data;
 891         struct e1000_adapter *adapter = netdev_priv(netdev);
 892
 893         adapter->test_icr |= E1000_READ_REG(&adapter->hw, ICR);
 894
 895         return IRQ_HANDLED;
 896 }
 897
 898 static int
 899 e1000_intr_test(struct e1000_adapter *adapter, uint64_t *data)
 900 {
 901         struct net_device *netdev = adapter->netdev;
 902         uint32_t mask, i=0, shared_int = TRUE;
 903         uint32_t irq = adapter->pdev->irq;
 904
 905         *data = 0;
 906
 907         /* NOTE: we don't test MSI interrupts here, yet */
 908         /* Hook up test interrupt handler just for this test */
 909         if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 910                          netdev))
 911                 shared_int = FALSE;
 912         else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
 913                  netdev->name, netdev)) {
 914                 *data = 1;
 915                 return -1;
 916         }
 917         DPRINTK(HW, INFO, "testing %s interrupt\n",
 918                 (shared_int ? "shared" : "unshared"));
 919
 920         /* Disable all the interrupts */
 921         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 922         msleep(10);
 923
 924         /* Test each interrupt */
 925         for (; i < 10; i++) {
 926
 927                 if (adapter->hw.mac_type == e1000_ich8lan && i == 8)
 928                         continue;
 929
 930                 /* Interrupt to test */
 931                 mask = 1 << i;
 932
 933                 if (!shared_int) {
 934                         /* Disable the interrupt to be reported in
 935                          * the cause register and then force the same
 936                          * interrupt and see if one gets posted.  If
 937                          * an interrupt was posted to the bus, the
 938                          * test failed.
 939                          */
 940                         adapter->test_icr = 0;
 941                         E1000_WRITE_REG(&adapter->hw, IMC, mask);
 942                         E1000_WRITE_REG(&adapter->hw, ICS, mask);
 943                         msleep(10);
 944
 945                         if (adapter->test_icr & mask) {
 946                                 *data = 3;
 947                                 break;
 948                         }
 949                 }
 950
 951                 /* Enable the interrupt to be reported in
 952                  * the cause register and then force the same
 953                  * interrupt and see if one gets posted.  If
 954                  * an interrupt was not posted to the bus, the
 955                  * test failed.
 956                  */
 957                 adapter->test_icr = 0;
 958                 E1000_WRITE_REG(&adapter->hw, IMS, mask);
 959                 E1000_WRITE_REG(&adapter->hw, ICS, mask);
 960                 msleep(10);
 961
 962                 if (!(adapter->test_icr & mask)) {
 963                         *data = 4;
 964                         break;
 965                 }
 966
 967                 if (!shared_int) {
 968                         /* Disable the other interrupts to be reported in
 969                          * the cause register and then force the other
 970                          * interrupts and see if any get posted.  If
 971                          * an interrupt was posted to the bus, the
 972                          * test failed.
 973                          */
 974                         adapter->test_icr = 0;
 975                         E1000_WRITE_REG(&adapter->hw, IMC, ~mask & 0x00007FFF);
 976                         E1000_WRITE_REG(&adapter->hw, ICS, ~mask & 0x00007FFF);
 977                         msleep(10);
 978
 979                         if (adapter->test_icr) {
 980                                 *data = 5;
 981                                 break;
 982                         }
 983                 }
 984         }
 985
 986         /* Disable all the interrupts */
 987         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 988         msleep(10);
 989
 990         /* Unhook test interrupt handler */
 991         free_irq(irq, netdev);
 992
 993         return *data;
 994 }
 995
 996 static void
 997 e1000_free_desc_rings(struct e1000_adapter *adapter)
 998 {
 999         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1000         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1001         struct pci_dev *pdev = adapter->pdev;
1002         int i;
1003
1004         if (txdr->desc && txdr->buffer_info) {
1005                 for (i = 0; i < txdr->count; i++) {
1006                         if (txdr->buffer_info[i].dma)
1007                                 pci_unmap_single(pdev, txdr->buffer_info[i].dma,
1008                                                  txdr->buffer_info[i].length,
1009                                                  PCI_DMA_TODEVICE);
1010                         if (txdr->buffer_info[i].skb)
1011                                 dev_kfree_skb(txdr->buffer_info[i].skb);
1012                 }
1013         }
1014
1015         if (rxdr->desc && rxdr->buffer_info) {
1016                 for (i = 0; i < rxdr->count; i++) {
1017                         if (rxdr->buffer_info[i].dma)
1018                                 pci_unmap_single(pdev, rxdr->buffer_info[i].dma,
1019                                                  rxdr->buffer_info[i].length,
1020                                                  PCI_DMA_FROMDEVICE);
1021                         if (rxdr->buffer_info[i].skb)
1022                                 dev_kfree_skb(rxdr->buffer_info[i].skb);
1023                 }
1024         }
1025
1026         if (txdr->desc) {
1027                 pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma);
1028                 txdr->desc = NULL;
1029         }
1030         if (rxdr->desc) {
1031                 pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma);
1032                 rxdr->desc = NULL;
1033         }
1034
1035         kfree(txdr->buffer_info);
1036         txdr->buffer_info = NULL;
1037         kfree(rxdr->buffer_info);
1038         rxdr->buffer_info = NULL;
1039
1040         return;
1041 }
1042
1043 static int
1044 e1000_setup_desc_rings(struct e1000_adapter *adapter)
1045 {
1046         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1047         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1048         struct pci_dev *pdev = adapter->pdev;
1049         uint32_t rctl;
1050         int i, ret_val;
1051
1052         /* Setup Tx descriptor ring and Tx buffers */
1053
1054         if (!txdr->count)
1055                 txdr->count = E1000_DEFAULT_TXD;
1056
1057         if (!(txdr->buffer_info = kcalloc(txdr->count,
1058                                           sizeof(struct e1000_buffer),
1059                                           GFP_KERNEL))) {
1060                 ret_val = 1;
1061                 goto err_nomem;
1062         }
1063
1064         txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
1065         txdr->size = ALIGN(txdr->size, 4096);
1066         if (!(txdr->desc = pci_alloc_consistent(pdev, txdr->size,
1067                                                 &txdr->dma))) {
1068                 ret_val = 2;
1069                 goto err_nomem;
1070         }
1071         memset(txdr->desc, 0, txdr->size);
1072         txdr->next_to_use = txdr->next_to_clean = 0;
1073
1074         E1000_WRITE_REG(&adapter->hw, TDBAL,
1075                         ((uint64_t) txdr->dma & 0x00000000FFFFFFFF));
1076         E1000_WRITE_REG(&adapter->hw, TDBAH, ((uint64_t) txdr->dma >> 32));
1077         E1000_WRITE_REG(&adapter->hw, TDLEN,
1078                         txdr->count * sizeof(struct e1000_tx_desc));
1079         E1000_WRITE_REG(&adapter->hw, TDH, 0);
1080         E1000_WRITE_REG(&adapter->hw, TDT, 0);
1081         E1000_WRITE_REG(&adapter->hw, TCTL,
1082                         E1000_TCTL_PSP | E1000_TCTL_EN |
1083                         E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1084                         E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1085
1086         for (i = 0; i < txdr->count; i++) {
1087                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
1088                 struct sk_buff *skb;
1089                 unsigned int size = 1024;
1090
1091                 if (!(skb = alloc_skb(size, GFP_KERNEL))) {
1092                         ret_val = 3;
1093                         goto err_nomem;
1094                 }
1095                 skb_put(skb, size);
1096                 txdr->buffer_info[i].skb = skb;
1097                 txdr->buffer_info[i].length = skb->len;
1098                 txdr->buffer_info[i].dma =
1099                         pci_map_single(pdev, skb->data, skb->len,
1100                                        PCI_DMA_TODEVICE);
1101                 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);
1102                 tx_desc->lower.data = cpu_to_le32(skb->len);
1103                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1104                                                    E1000_TXD_CMD_IFCS |
1105                                                    E1000_TXD_CMD_RPS);
1106                 tx_desc->upper.data = 0;
1107         }
1108
1109         /* Setup Rx descriptor ring and Rx buffers */
1110
1111         if (!rxdr->count)
1112                 rxdr->count = E1000_DEFAULT_RXD;
1113
1114         if (!(rxdr->buffer_info = kcalloc(rxdr->count,
1115                                           sizeof(struct e1000_buffer),
1116                                           GFP_KERNEL))) {
1117                 ret_val = 4;
1118                 goto err_nomem;
1119         }
1120
1121         rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
1122         if (!(rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma))) {
1123                 ret_val = 5;
1124                 goto err_nomem;
1125         }
1126         memset(rxdr->desc, 0, rxdr->size);
1127         rxdr->next_to_use = rxdr->next_to_clean = 0;
1128
1129         rctl = E1000_READ_REG(&adapter->hw, RCTL);
1130         E1000_WRITE_REG(&adapter->hw, RCTL, rctl & ~E1000_RCTL_EN);
1131         E1000_WRITE_REG(&adapter->hw, RDBAL,
1132                         ((uint64_t) rxdr->dma & 0xFFFFFFFF));
1133         E1000_WRITE_REG(&adapter->hw, RDBAH, ((uint64_t) rxdr->dma >> 32));
1134         E1000_WRITE_REG(&adapter->hw, RDLEN, rxdr->size);
1135         E1000_WRITE_REG(&adapter->hw, RDH, 0);
1136         E1000_WRITE_REG(&adapter->hw, RDT, 0);
1137         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1138                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1139                 (adapter->hw.mc_filter_type << E1000_RCTL_MO_SHIFT);
1140         E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
1141
1142         for (i = 0; i < rxdr->count; i++) {
1143                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
1144                 struct sk_buff *skb;
1145
1146                 if (!(skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN,
1147                                 GFP_KERNEL))) {
1148                         ret_val = 6;
1149                         goto err_nomem;
1150                 }
1151                 skb_reserve(skb, NET_IP_ALIGN);
1152                 rxdr->buffer_info[i].skb = skb;
1153                 rxdr->buffer_info[i].length = E1000_RXBUFFER_2048;
1154                 rxdr->buffer_info[i].dma =
1155                         pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048,
1156                                        PCI_DMA_FROMDEVICE);
1157                 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);
1158                 memset(skb->data, 0x00, skb->len);
1159         }
1160
1161         return 0;
1162
1163 err_nomem:
1164         e1000_free_desc_rings(adapter);
1165         return ret_val;
1166 }
1167
1168 static void
1169 e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1170 {
1171         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1172         e1000_write_phy_reg(&adapter->hw, 29, 0x001F);
1173         e1000_write_phy_reg(&adapter->hw, 30, 0x8FFC);
1174         e1000_write_phy_reg(&adapter->hw, 29, 0x001A);
1175         e1000_write_phy_reg(&adapter->hw, 30, 0x8FF0);
1176 }
1177
1178 static void
1179 e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
1180 {
1181         uint16_t phy_reg;
1182
1183         /* Because we reset the PHY above, we need to re-force TX_CLK in the
1184          * Extended PHY Specific Control Register to 25MHz clock.  This
1185          * value defaults back to a 2.5MHz clock when the PHY is reset.
1186          */
1187         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1188         phy_reg |= M88E1000_EPSCR_TX_CLK_25;
1189         e1000_write_phy_reg(&adapter->hw,
1190                 M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
1191
1192         /* In addition, because of the s/w reset above, we need to enable
1193          * CRS on TX.  This must be set for both full and half duplex
1194          * operation.
1195          */
1196         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1197         phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
1198         e1000_write_phy_reg(&adapter->hw,
1199                 M88E1000_PHY_SPEC_CTRL, phy_reg);
1200 }
1201
1202 static int
1203 e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
1204 {
1205         uint32_t ctrl_reg;
1206         uint16_t phy_reg;
1207
1208         /* Setup the Device Control Register for PHY loopback test. */
1209
1210         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1211         ctrl_reg |= (E1000_CTRL_ILOS |          /* Invert Loss-Of-Signal */
1212                      E1000_CTRL_FRCSPD |        /* Set the Force Speed Bit */
1213                      E1000_CTRL_FRCDPX |        /* Set the Force Duplex Bit */
1214                      E1000_CTRL_SPD_1000 |      /* Force Speed to 1000 */
1215                      E1000_CTRL_FD);            /* Force Duplex to FULL */
1216
1217         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1218
1219         /* Read the PHY Specific Control Register (0x10) */
1220         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1221
1222         /* Clear Auto-Crossover bits in PHY Specific Control Register
1223          * (bits 6:5).
1224          */
1225         phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
1226         e1000_write_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
1227
1228         /* Perform software reset on the PHY */
1229         e1000_phy_reset(&adapter->hw);
1230
1231         /* Have to setup TX_CLK and TX_CRS after software reset */
1232         e1000_phy_reset_clk_and_crs(adapter);
1233
1234         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8100);
1235
1236         /* Wait for reset to complete. */
1237         udelay(500);
1238
1239         /* Have to setup TX_CLK and TX_CRS after software reset */
1240         e1000_phy_reset_clk_and_crs(adapter);
1241
1242         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1243         e1000_phy_disable_receiver(adapter);
1244
1245         /* Set the loopback bit in the PHY control register. */
1246         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1247         phy_reg |= MII_CR_LOOPBACK;
1248         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1249
1250         /* Setup TX_CLK and TX_CRS one more time. */
1251         e1000_phy_reset_clk_and_crs(adapter);
1252
1253         /* Check Phy Configuration */
1254         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1255         if (phy_reg != 0x4100)
1256                  return 9;
1257
1258         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1259         if (phy_reg != 0x0070)
1260                 return 10;
1261
1262         e1000_read_phy_reg(&adapter->hw, 29, &phy_reg);
1263         if (phy_reg != 0x001A)
1264                 return 11;
1265
1266         return 0;
1267 }
1268
1269 static int
1270 e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1271 {
1272         uint32_t ctrl_reg = 0;
1273         uint32_t stat_reg = 0;
1274
1275         adapter->hw.autoneg = FALSE;
1276
1277         if (adapter->hw.phy_type == e1000_phy_m88) {
1278                 /* Auto-MDI/MDIX Off */
1279                 e1000_write_phy_reg(&adapter->hw,
1280                                     M88E1000_PHY_SPEC_CTRL, 0x0808);
1281                 /* reset to update Auto-MDI/MDIX */
1282                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x9140);
1283                 /* autoneg off */
1284                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8140);
1285         } else if (adapter->hw.phy_type == e1000_phy_gg82563)
1286                 e1000_write_phy_reg(&adapter->hw,
1287                                     GG82563_PHY_KMRN_MODE_CTRL,
1288                                     0x1CC);
1289
1290         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1291
1292         if (adapter->hw.phy_type == e1000_phy_ife) {
1293                 /* force 100, set loopback */
1294                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x6100);
1295
1296                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1297                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1298                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1299                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1300                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1301                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1302         } else {
1303                 /* force 1000, set loopback */
1304                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x4140);
1305
1306                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1307                 ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1308                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1309                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1310                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1311                              E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1312                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1313         }
1314
1315         if (adapter->hw.media_type == e1000_media_type_copper &&
1316            adapter->hw.phy_type == e1000_phy_m88)
1317                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1318         else {
1319                 /* Set the ILOS bit on the fiber Nic is half
1320                  * duplex link is detected. */
1321                 stat_reg = E1000_READ_REG(&adapter->hw, STATUS);
1322                 if ((stat_reg & E1000_STATUS_FD) == 0)
1323                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1324         }
1325
1326         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1327
1328         /* Disable the receiver on the PHY so when a cable is plugged in, the
1329          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1330          */
1331         if (adapter->hw.phy_type == e1000_phy_m88)
1332                 e1000_phy_disable_receiver(adapter);
1333
1334         udelay(500);
1335
1336         return 0;
1337 }
1338
1339 static int
1340 e1000_set_phy_loopback(struct e1000_adapter *adapter)
1341 {
1342         uint16_t phy_reg = 0;
1343         uint16_t count = 0;
1344
1345         switch (adapter->hw.mac_type) {
1346         case e1000_82543:
1347                 if (adapter->hw.media_type == e1000_media_type_copper) {
1348                         /* Attempt to setup Loopback mode on Non-integrated PHY.
1349                          * Some PHY registers get corrupted at random, so
1350                          * attempt this 10 times.
1351                          */
1352                         while (e1000_nonintegrated_phy_loopback(adapter) &&
1353                               count++ < 10);
1354                         if (count < 11)
1355                                 return 0;
1356                 }
1357                 break;
1358
1359         case e1000_82544:
1360         case e1000_82540:
1361         case e1000_82545:
1362         case e1000_82545_rev_3:
1363         case e1000_82546:
1364         case e1000_82546_rev_3:
1365         case e1000_82541:
1366         case e1000_82541_rev_2:
1367         case e1000_82547:
1368         case e1000_82547_rev_2:
1369         case e1000_82571:
1370         case e1000_82572:
1371         case e1000_82573:
1372         case e1000_80003es2lan:
1373         case e1000_ich8lan:
1374                 return e1000_integrated_phy_loopback(adapter);
1375                 break;
1376
1377         default:
1378                 /* Default PHY loopback work is to read the MII
1379                  * control register and assert bit 14 (loopback mode).
1380                  */
1381                 e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1382                 phy_reg |= MII_CR_LOOPBACK;
1383                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1384                 return 0;
1385                 break;
1386         }
1387
1388         return 8;
1389 }
1390
1391 static int
1392 e1000_setup_loopback_test(struct e1000_adapter *adapter)
1393 {
1394         struct e1000_hw *hw = &adapter->hw;
1395         uint32_t rctl;
1396
1397         if (hw->media_type == e1000_media_type_fiber ||
1398             hw->media_type == e1000_media_type_internal_serdes) {
1399                 switch (hw->mac_type) {
1400                 case e1000_82545:
1401                 case e1000_82546:
1402                 case e1000_82545_rev_3:
1403                 case e1000_82546_rev_3:
1404                         return e1000_set_phy_loopback(adapter);
1405                         break;
1406                 case e1000_82571:
1407                 case e1000_82572:
1408 #define E1000_SERDES_LB_ON 0x410
1409                         e1000_set_phy_loopback(adapter);
1410                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_ON);
1411                         msleep(10);
1412                         return 0;
1413                         break;
1414                 default:
1415                         rctl = E1000_READ_REG(hw, RCTL);
1416                         rctl |= E1000_RCTL_LBM_TCVR;
1417                         E1000_WRITE_REG(hw, RCTL, rctl);
1418                         return 0;
1419                 }
1420         } else if (hw->media_type == e1000_media_type_copper)
1421                 return e1000_set_phy_loopback(adapter);
1422
1423         return 7;
1424 }
1425
1426 static void
1427 e1000_loopback_cleanup(struct e1000_adapter *adapter)
1428 {
1429         struct e1000_hw *hw = &adapter->hw;
1430         uint32_t rctl;
1431         uint16_t phy_reg;
1432
1433         rctl = E1000_READ_REG(hw, RCTL);
1434         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1435         E1000_WRITE_REG(hw, RCTL, rctl);
1436
1437         switch (hw->mac_type) {
1438         case e1000_82571:
1439         case e1000_82572:
1440                 if (hw->media_type == e1000_media_type_fiber ||
1441                     hw->media_type == e1000_media_type_internal_serdes) {
1442 #define E1000_SERDES_LB_OFF 0x400
1443                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_OFF);
1444                         msleep(10);
1445                         break;
1446                 }
1447                 /* Fall Through */
1448         case e1000_82545:
1449         case e1000_82546:
1450         case e1000_82545_rev_3:
1451         case e1000_82546_rev_3:
1452         default:
1453                 hw->autoneg = TRUE;
1454                 if (hw->phy_type == e1000_phy_gg82563)
1455                         e1000_write_phy_reg(hw,
1456                                             GG82563_PHY_KMRN_MODE_CTRL,
1457                                             0x180);
1458                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1459                 if (phy_reg & MII_CR_LOOPBACK) {
1460                         phy_reg &= ~MII_CR_LOOPBACK;
1461                         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1462                         e1000_phy_reset(hw);
1463                 }
1464                 break;
1465         }
1466 }
1467
1468 static void
1469 e1000_create_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1470 {
1471         memset(skb->data, 0xFF, frame_size);
1472         frame_size &= ~1;
1473         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1474         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1475         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1476 }
1477
1478 static int
1479 e1000_check_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1480 {
1481         frame_size &= ~1;
1482         if (*(skb->data + 3) == 0xFF) {
1483                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1484                    (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
1485                         return 0;
1486                 }
1487         }
1488         return 13;
1489 }
1490
1491 static int
1492 e1000_run_loopback_test(struct e1000_adapter *adapter)
1493 {
1494         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1495         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1496         struct pci_dev *pdev = adapter->pdev;
1497         int i, j, k, l, lc, good_cnt, ret_val=0;
1498         unsigned long time;
1499
1500         E1000_WRITE_REG(&adapter->hw, RDT, rxdr->count - 1);
1501
1502         /* Calculate the loop count based on the largest descriptor ring
1503          * The idea is to wrap the largest ring a number of times using 64
1504          * send/receive pairs during each loop
1505          */
1506
1507         if (rxdr->count <= txdr->count)
1508                 lc = ((txdr->count / 64) * 2) + 1;
1509         else
1510                 lc = ((rxdr->count / 64) * 2) + 1;
1511
1512         k = l = 0;
1513         for (j = 0; j <= lc; j++) { /* loop count loop */
1514                 for (i = 0; i < 64; i++) { /* send the packets */
1515                         e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
1516                                         1024);
1517                         pci_dma_sync_single_for_device(pdev,
1518                                         txdr->buffer_info[k].dma,
1519                                         txdr->buffer_info[k].length,
1520                                         PCI_DMA_TODEVICE);
1521                         if (unlikely(++k == txdr->count)) k = 0;
1522                 }
1523                 E1000_WRITE_REG(&adapter->hw, TDT, k);
1524                 msleep(200);
1525                 time = jiffies; /* set the start time for the receive */
1526                 good_cnt = 0;
1527                 do { /* receive the sent packets */
1528                         pci_dma_sync_single_for_cpu(pdev,
1529                                         rxdr->buffer_info[l].dma,
1530                                         rxdr->buffer_info[l].length,
1531                                         PCI_DMA_FROMDEVICE);
1532
1533                         ret_val = e1000_check_lbtest_frame(
1534                                         rxdr->buffer_info[l].skb,
1535                                         1024);
1536                         if (!ret_val)
1537                                 good_cnt++;
1538                         if (unlikely(++l == rxdr->count)) l = 0;
1539                         /* time + 20 msecs (200 msecs on 2.4) is more than
1540                          * enough time to complete the receives, if it's
1541                          * exceeded, break and error off
1542                          */
1543                 } while (good_cnt < 64 && jiffies < (time + 20));
1544                 if (good_cnt != 64) {
1545                         ret_val = 13; /* ret_val is the same as mis-compare */
1546                         break;
1547                 }
1548                 if (jiffies >= (time + 2)) {
1549                         ret_val = 14; /* error code for time out error */
1550                         break;
1551                 }
1552         } /* end loop count loop */
1553         return ret_val;
1554 }
1555
1556 static int
1557 e1000_loopback_test(struct e1000_adapter *adapter, uint64_t *data)
1558 {
1559         /* PHY loopback cannot be performed if SoL/IDER
1560          * sessions are active */
1561         if (e1000_check_phy_reset_block(&adapter->hw)) {
1562                 DPRINTK(DRV, ERR, "Cannot do PHY loopback test "
1563                         "when SoL/IDER is active.\n");
1564                 *data = 0;
1565                 goto out;
1566         }
1567
1568         if ((*data = e1000_setup_desc_rings(adapter)))
1569                 goto out;
1570         if ((*data = e1000_setup_loopback_test(adapter)))
1571                 goto err_loopback;
1572         *data = e1000_run_loopback_test(adapter);
1573         e1000_loopback_cleanup(adapter);
1574
1575 err_loopback:
1576         e1000_free_desc_rings(adapter);
1577 out:
1578         return *data;
1579 }
1580
1581 static int
1582 e1000_link_test(struct e1000_adapter *adapter, uint64_t *data)
1583 {
1584         *data = 0;
1585         if (adapter->hw.media_type == e1000_media_type_internal_serdes) {
1586                 int i = 0;
1587                 adapter->hw.serdes_link_down = TRUE;
1588
1589                 /* On some blade server designs, link establishment
1590                  * could take as long as 2-3 minutes */
1591                 do {
1592                         e1000_check_for_link(&adapter->hw);
1593                         if (adapter->hw.serdes_link_down == FALSE)
1594                                 return *data;
1595                         msleep(20);
1596                 } while (i++ < 3750);
1597
1598                 *data = 1;
1599         } else {
1600                 e1000_check_for_link(&adapter->hw);
1601                 if (adapter->hw.autoneg)  /* if auto_neg is set wait for it */
1602                         msleep(4000);
1603
1604                 if (!(E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU)) {
1605                         *data = 1;
1606                 }
1607         }
1608         return *data;
1609 }
1610
1611 static int
1612 e1000_get_sset_count(struct net_device *netdev, int sset)
1613 {
1614         switch (sset) {
1615         case ETH_SS_TEST:
1616                 return E1000_TEST_LEN;
1617         case ETH_SS_STATS:
1618                 return E1000_STATS_LEN;
1619         default:
1620                 return -EOPNOTSUPP;
1621         }
1622 }
1623
1624 extern void e1000_power_up_phy(struct e1000_adapter *);
1625
1626 static void
1627 e1000_diag_test(struct net_device *netdev,
1628                    struct ethtool_test *eth_test, uint64_t *data)
1629 {
1630         struct e1000_adapter *adapter = netdev_priv(netdev);
1631         boolean_t if_running = netif_running(netdev);
1632
1633         set_bit(__E1000_TESTING, &adapter->flags);
1634         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1635                 /* Offline tests */
1636
1637                 /* save speed, duplex, autoneg settings */
1638                 uint16_t autoneg_advertised = adapter->hw.autoneg_advertised;
1639                 uint8_t forced_speed_duplex = adapter->hw.forced_speed_duplex;
1640                 uint8_t autoneg = adapter->hw.autoneg;
1641
1642                 DPRINTK(HW, INFO, "offline testing starting\n");
1643
1644                 /* Link test performed before hardware reset so autoneg doesn't
1645                  * interfere with test result */
1646                 if (e1000_link_test(adapter, &data[4]))
1647                         eth_test->flags |= ETH_TEST_FL_FAILED;
1648
1649                 if (if_running)
1650                         /* indicate we're in test mode */
1651                         dev_close(netdev);
1652                 else
1653                         e1000_reset(adapter);
1654
1655                 if (e1000_reg_test(adapter, &data[0]))
1656                         eth_test->flags |= ETH_TEST_FL_FAILED;
1657
1658                 e1000_reset(adapter);
1659                 if (e1000_eeprom_test(adapter, &data[1]))
1660                         eth_test->flags |= ETH_TEST_FL_FAILED;
1661
1662                 e1000_reset(adapter);
1663                 if (e1000_intr_test(adapter, &data[2]))
1664                         eth_test->flags |= ETH_TEST_FL_FAILED;
1665
1666                 e1000_reset(adapter);
1667                 /* make sure the phy is powered up */
1668                 e1000_power_up_phy(adapter);
1669                 if (e1000_loopback_test(adapter, &data[3]))
1670                         eth_test->flags |= ETH_TEST_FL_FAILED;
1671
1672                 /* restore speed, duplex, autoneg settings */
1673                 adapter->hw.autoneg_advertised = autoneg_advertised;
1674                 adapter->hw.forced_speed_duplex = forced_speed_duplex;
1675                 adapter->hw.autoneg = autoneg;
1676
1677                 e1000_reset(adapter);
1678                 clear_bit(__E1000_TESTING, &adapter->flags);
1679                 if (if_running)
1680                         dev_open(netdev);
1681         } else {
1682                 DPRINTK(HW, INFO, "online testing starting\n");
1683                 /* Online tests */
1684                 if (e1000_link_test(adapter, &data[4]))
1685                         eth_test->flags |= ETH_TEST_FL_FAILED;
1686
1687                 /* Online tests aren't run; pass by default */
1688                 data[0] = 0;
1689                 data[1] = 0;
1690                 data[2] = 0;
1691                 data[3] = 0;
1692
1693                 clear_bit(__E1000_TESTING, &adapter->flags);
1694         }
1695         msleep_interruptible(4 * 1000);
1696 }
1697
1698 static int e1000_wol_exclusion(struct e1000_adapter *adapter, struct ethtool_wolinfo *wol)
1699 {
1700         struct e1000_hw *hw = &adapter->hw;
1701         int retval = 1; /* fail by default */
1702
1703         switch (hw->device_id) {
1704         case E1000_DEV_ID_82542:
1705         case E1000_DEV_ID_82543GC_FIBER:
1706         case E1000_DEV_ID_82543GC_COPPER:
1707         case E1000_DEV_ID_82544EI_FIBER:
1708         case E1000_DEV_ID_82546EB_QUAD_COPPER:
1709         case E1000_DEV_ID_82545EM_FIBER:
1710         case E1000_DEV_ID_82545EM_COPPER:
1711         case E1000_DEV_ID_82546GB_QUAD_COPPER:
1712         case E1000_DEV_ID_82546GB_PCIE:
1713         case E1000_DEV_ID_82571EB_SERDES_QUAD:
1714                 /* these don't support WoL at all */
1715                 wol->supported = 0;
1716                 break;
1717         case E1000_DEV_ID_82546EB_FIBER:
1718         case E1000_DEV_ID_82546GB_FIBER:
1719         case E1000_DEV_ID_82571EB_FIBER:
1720         case E1000_DEV_ID_82571EB_SERDES:
1721         case E1000_DEV_ID_82571EB_COPPER:
1722                 /* Wake events not supported on port B */
1723                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) {
1724                         wol->supported = 0;
1725                         break;
1726                 }
1727                 /* return success for non excluded adapter ports */
1728                 retval = 0;
1729                 break;
1730         case E1000_DEV_ID_82571EB_QUAD_COPPER:
1731         case E1000_DEV_ID_82571EB_QUAD_FIBER:
1732         case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
1733         case E1000_DEV_ID_82571PT_QUAD_COPPER:
1734         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1735                 /* quad port adapters only support WoL on port A */
1736                 if (!adapter->quad_port_a) {
1737                         wol->supported = 0;
1738                         break;
1739                 }
1740                 /* return success for non excluded adapter ports */
1741                 retval = 0;
1742                 break;
1743         default:
1744                 /* dual port cards only support WoL on port A from now on
1745                  * unless it was enabled in the eeprom for port B
1746                  * so exclude FUNC_1 ports from having WoL enabled */
1747                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1 &&
1748                     !adapter->eeprom_wol) {
1749                         wol->supported = 0;
1750                         break;
1751                 }
1752
1753                 retval = 0;
1754         }
1755
1756         return retval;
1757 }
1758
1759 static void
1760 e1000_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1761 {
1762         struct e1000_adapter *adapter = netdev_priv(netdev);
1763
1764         wol->supported = WAKE_UCAST | WAKE_MCAST |
1765                          WAKE_BCAST | WAKE_MAGIC;
1766         wol->wolopts = 0;
1767
1768         /* this function will set ->supported = 0 and return 1 if wol is not
1769          * supported by this hardware */
1770         if (e1000_wol_exclusion(adapter, wol))
1771                 return;
1772
1773         /* apply any specific unsupported masks here */
1774         switch (adapter->hw.device_id) {
1775         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1776                 /* KSP3 does not suppport UCAST wake-ups */
1777                 wol->supported &= ~WAKE_UCAST;
1778
1779                 if (adapter->wol & E1000_WUFC_EX)
1780                         DPRINTK(DRV, ERR, "Interface does not support "
1781                         "directed (unicast) frame wake-up packets\n");
1782                 break;
1783         default:
1784                 break;
1785         }
1786
1787         if (adapter->wol & E1000_WUFC_EX)
1788                 wol->wolopts |= WAKE_UCAST;
1789         if (adapter->wol & E1000_WUFC_MC)
1790                 wol->wolopts |= WAKE_MCAST;
1791         if (adapter->wol & E1000_WUFC_BC)
1792                 wol->wolopts |= WAKE_BCAST;
1793         if (adapter->wol & E1000_WUFC_MAG)
1794                 wol->wolopts |= WAKE_MAGIC;
1795
1796         return;
1797 }
1798
1799 static int
1800 e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1801 {
1802         struct e1000_adapter *adapter = netdev_priv(netdev);
1803         struct e1000_hw *hw = &adapter->hw;
1804
1805         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
1806                 return -EOPNOTSUPP;
1807
1808         if (e1000_wol_exclusion(adapter, wol))
1809                 return wol->wolopts ? -EOPNOTSUPP : 0;
1810
1811         switch (hw->device_id) {
1812         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1813                 if (wol->wolopts & WAKE_UCAST) {
1814                         DPRINTK(DRV, ERR, "Interface does not support "
1815                         "directed (unicast) frame wake-up packets\n");
1816                         return -EOPNOTSUPP;
1817                 }
1818                 break;
1819         default:
1820                 break;
1821         }
1822
1823         /* these settings will always override what we currently have */
1824         adapter->wol = 0;
1825
1826         if (wol->wolopts & WAKE_UCAST)
1827                 adapter->wol |= E1000_WUFC_EX;
1828         if (wol->wolopts & WAKE_MCAST)
1829                 adapter->wol |= E1000_WUFC_MC;
1830         if (wol->wolopts & WAKE_BCAST)
1831                 adapter->wol |= E1000_WUFC_BC;
1832         if (wol->wolopts & WAKE_MAGIC)
1833                 adapter->wol |= E1000_WUFC_MAG;
1834
1835         return 0;
1836 }
1837
1838 /* toggle LED 4 times per second = 2 "blinks" per second */
1839 #define E1000_ID_INTERVAL       (HZ/4)
1840
1841 /* bit defines for adapter->led_status */
1842 #define E1000_LED_ON            0
1843
1844 static void
1845 e1000_led_blink_callback(unsigned long data)
1846 {
1847         struct e1000_adapter *adapter = (struct e1000_adapter *) data;
1848
1849         if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
1850                 e1000_led_off(&adapter->hw);
1851         else
1852                 e1000_led_on(&adapter->hw);
1853
1854         mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
1855 }
1856
1857 static int
1858 e1000_phys_id(struct net_device *netdev, uint32_t data)
1859 {
1860         struct e1000_adapter *adapter = netdev_priv(netdev);
1861
1862         if (!data || data > (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ))
1863                 data = (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ);
1864
1865         if (adapter->hw.mac_type < e1000_82571) {
1866                 if (!adapter->blink_timer.function) {
1867                         init_timer(&adapter->blink_timer);
1868                         adapter->blink_timer.function = e1000_led_blink_callback;
1869                         adapter->blink_timer.data = (unsigned long) adapter;
1870                 }
1871                 e1000_setup_led(&adapter->hw);
1872                 mod_timer(&adapter->blink_timer, jiffies);
1873                 msleep_interruptible(data * 1000);
1874                 del_timer_sync(&adapter->blink_timer);
1875         } else if (adapter->hw.phy_type == e1000_phy_ife) {
1876                 if (!adapter->blink_timer.function) {
1877                         init_timer(&adapter->blink_timer);
1878                         adapter->blink_timer.function = e1000_led_blink_callback;
1879                         adapter->blink_timer.data = (unsigned long) adapter;
1880                 }
1881                 mod_timer(&adapter->blink_timer, jiffies);
1882                 msleep_interruptible(data * 1000);
1883                 del_timer_sync(&adapter->blink_timer);
1884                 e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0);
1885         } else {
1886                 e1000_blink_led_start(&adapter->hw);
1887                 msleep_interruptible(data * 1000);
1888         }
1889
1890         e1000_led_off(&adapter->hw);
1891         clear_bit(E1000_LED_ON, &adapter->led_status);
1892         e1000_cleanup_led(&adapter->hw);
1893
1894         return 0;
1895 }
1896
1897 static int
1898 e1000_nway_reset(struct net_device *netdev)
1899 {
1900         struct e1000_adapter *adapter = netdev_priv(netdev);
1901         if (netif_running(netdev))
1902                 e1000_reinit_locked(adapter);
1903         return 0;
1904 }
1905
1906 static void
1907 e1000_get_ethtool_stats(struct net_device *netdev,
1908                 struct ethtool_stats *stats, uint64_t *data)
1909 {
1910         struct e1000_adapter *adapter = netdev_priv(netdev);
1911         int i;
1912
1913         e1000_update_stats(adapter);
1914         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1915                 char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
1916                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1917                         sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
1918         }
1919 /*      BUG_ON(i != E1000_STATS_LEN); */
1920 }
1921
1922 static void
1923 e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
1924 {
1925         uint8_t *p = data;
1926         int i;
1927
1928         switch (stringset) {
1929         case ETH_SS_TEST:
1930                 memcpy(data, *e1000_gstrings_test,
1931                         E1000_TEST_LEN*ETH_GSTRING_LEN);
1932                 break;
1933         case ETH_SS_STATS:
1934                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1935                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1936                                ETH_GSTRING_LEN);
1937                         p += ETH_GSTRING_LEN;
1938                 }
1939 /*              BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
1940                 break;
1941         }
1942 }
1943
1944 static const struct ethtool_ops e1000_ethtool_ops = {
1945         .get_settings           = e1000_get_settings,
1946         .set_settings           = e1000_set_settings,
1947         .get_drvinfo            = e1000_get_drvinfo,
1948         .get_regs_len           = e1000_get_regs_len,
1949         .get_regs               = e1000_get_regs,
1950         .get_wol                = e1000_get_wol,
1951         .set_wol                = e1000_set_wol,
1952         .get_msglevel           = e1000_get_msglevel,
1953         .set_msglevel           = e1000_set_msglevel,
1954         .nway_reset             = e1000_nway_reset,
1955         .get_link               = ethtool_op_get_link,
1956         .get_eeprom_len         = e1000_get_eeprom_len,
1957         .get_eeprom             = e1000_get_eeprom,
1958         .set_eeprom             = e1000_set_eeprom,
1959         .get_ringparam          = e1000_get_ringparam,
1960         .set_ringparam          = e1000_set_ringparam,
1961         .get_pauseparam         = e1000_get_pauseparam,
1962         .set_pauseparam         = e1000_set_pauseparam,
1963         .get_rx_csum            = e1000_get_rx_csum,
1964         .set_rx_csum            = e1000_set_rx_csum,
1965         .get_tx_csum            = e1000_get_tx_csum,
1966         .set_tx_csum            = e1000_set_tx_csum,
1967         .set_sg                 = ethtool_op_set_sg,
1968         .set_tso                = e1000_set_tso,
1969         .self_test              = e1000_diag_test,
1970         .get_strings            = e1000_get_strings,
1971         .phys_id                = e1000_phys_id,
1972         .get_ethtool_stats      = e1000_get_ethtool_stats,
1973         .get_sset_count         = e1000_get_sset_count,
1974 };
1975
1976 void e1000_set_ethtool_ops(struct net_device *netdev)
1977 {
1978         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
1979 }