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  \
 110         sizeof(e1000_gstrings_stats) / sizeof(struct e1000_stats)
 111 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)
 112 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 113         "Register test  (offline)", "Eeprom test    (offline)",
 114         "Interrupt test (offline)", "Loopback test  (offline)",
 115         "Link test   (on/offline)"
 116 };
 117 #define E1000_TEST_LEN sizeof(e1000_gstrings_test) / ETH_GSTRING_LEN
 118
 119 static int
 120 e1000_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 121 {
 122         struct e1000_adapter *adapter = netdev_priv(netdev);
 123         struct e1000_hw *hw = &adapter->hw;
 124
 125         if (hw->media_type == e1000_media_type_copper) {
 126
 127                 ecmd->supported = (SUPPORTED_10baseT_Half |
 128                                    SUPPORTED_10baseT_Full |
 129                                    SUPPORTED_100baseT_Half |
 130                                    SUPPORTED_100baseT_Full |
 131                                    SUPPORTED_1000baseT_Full|
 132                                    SUPPORTED_Autoneg |
 133                                    SUPPORTED_TP);
 134                 if (hw->phy_type == e1000_phy_ife)
 135                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 136                 ecmd->advertising = ADVERTISED_TP;
 137
 138                 if (hw->autoneg == 1) {
 139                         ecmd->advertising |= ADVERTISED_Autoneg;
 140                         /* the e1000 autoneg seems to match ethtool nicely */
 141                         ecmd->advertising |= hw->autoneg_advertised;
 142                 }
 143
 144                 ecmd->port = PORT_TP;
 145                 ecmd->phy_address = hw->phy_addr;
 146
 147                 if (hw->mac_type == e1000_82543)
 148                         ecmd->transceiver = XCVR_EXTERNAL;
 149                 else
 150                         ecmd->transceiver = XCVR_INTERNAL;
 151
 152         } else {
 153                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 154                                      SUPPORTED_FIBRE |
 155                                      SUPPORTED_Autoneg);
 156
 157                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 158                                      ADVERTISED_FIBRE |
 159                                      ADVERTISED_Autoneg);
 160
 161                 ecmd->port = PORT_FIBRE;
 162
 163                 if (hw->mac_type >= e1000_82545)
 164                         ecmd->transceiver = XCVR_INTERNAL;
 165                 else
 166                         ecmd->transceiver = XCVR_EXTERNAL;
 167         }
 168
 169         if (netif_carrier_ok(adapter->netdev)) {
 170
 171                 e1000_get_speed_and_duplex(hw, &adapter->link_speed,
 172                                                    &adapter->link_duplex);
 173                 ecmd->speed = adapter->link_speed;
 174
 175                 /* unfortunatly FULL_DUPLEX != DUPLEX_FULL
 176                  *          and HALF_DUPLEX != DUPLEX_HALF */
 177
 178                 if (adapter->link_duplex == FULL_DUPLEX)
 179                         ecmd->duplex = DUPLEX_FULL;
 180                 else
 181                         ecmd->duplex = DUPLEX_HALF;
 182         } else {
 183                 ecmd->speed = -1;
 184                 ecmd->duplex = -1;
 185         }
 186
 187         ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
 188                          hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 189         return 0;
 190 }
 191
 192 static int
 193 e1000_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 194 {
 195         struct e1000_adapter *adapter = netdev_priv(netdev);
 196         struct e1000_hw *hw = &adapter->hw;
 197
 198         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 199          * cannot be changed */
 200         if (e1000_check_phy_reset_block(hw)) {
 201                 DPRINTK(DRV, ERR, "Cannot change link characteristics "
 202                         "when SoL/IDER is active.\n");
 203                 return -EINVAL;
 204         }
 205
 206         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 207                 msleep(1);
 208
 209         if (ecmd->autoneg == AUTONEG_ENABLE) {
 210                 hw->autoneg = 1;
 211                 if (hw->media_type == e1000_media_type_fiber)
 212                         hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
 213                                      ADVERTISED_FIBRE |
 214                                      ADVERTISED_Autoneg;
 215                 else
 216                         hw->autoneg_advertised = ecmd->advertising |
 217                                                  ADVERTISED_TP |
 218                                                  ADVERTISED_Autoneg;
 219                 ecmd->advertising = hw->autoneg_advertised;
 220         } else
 221                 if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
 222                         clear_bit(__E1000_RESETTING, &adapter->flags);
 223                         return -EINVAL;
 224                 }
 225
 226         /* reset the link */
 227
 228         if (netif_running(adapter->netdev)) {
 229                 e1000_down(adapter);
 230                 e1000_up(adapter);
 231         } else
 232                 e1000_reset(adapter);
 233
 234         clear_bit(__E1000_RESETTING, &adapter->flags);
 235         return 0;
 236 }
 237
 238 static void
 239 e1000_get_pauseparam(struct net_device *netdev,
 240                      struct ethtool_pauseparam *pause)
 241 {
 242         struct e1000_adapter *adapter = netdev_priv(netdev);
 243         struct e1000_hw *hw = &adapter->hw;
 244
 245         pause->autoneg =
 246                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 247
 248         if (hw->fc == E1000_FC_RX_PAUSE)
 249                 pause->rx_pause = 1;
 250         else if (hw->fc == E1000_FC_TX_PAUSE)
 251                 pause->tx_pause = 1;
 252         else if (hw->fc == E1000_FC_FULL) {
 253                 pause->rx_pause = 1;
 254                 pause->tx_pause = 1;
 255         }
 256 }
 257
 258 static int
 259 e1000_set_pauseparam(struct net_device *netdev,
 260                      struct ethtool_pauseparam *pause)
 261 {
 262         struct e1000_adapter *adapter = netdev_priv(netdev);
 263         struct e1000_hw *hw = &adapter->hw;
 264         int retval = 0;
 265
 266         adapter->fc_autoneg = pause->autoneg;
 267
 268         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 269                 msleep(1);
 270
 271         if (pause->rx_pause && pause->tx_pause)
 272                 hw->fc = E1000_FC_FULL;
 273         else if (pause->rx_pause && !pause->tx_pause)
 274                 hw->fc = E1000_FC_RX_PAUSE;
 275         else if (!pause->rx_pause && pause->tx_pause)
 276                 hw->fc = E1000_FC_TX_PAUSE;
 277         else if (!pause->rx_pause && !pause->tx_pause)
 278                 hw->fc = E1000_FC_NONE;
 279
 280         hw->original_fc = hw->fc;
 281
 282         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 283                 if (netif_running(adapter->netdev)) {
 284                         e1000_down(adapter);
 285                         e1000_up(adapter);
 286                 } else
 287                         e1000_reset(adapter);
 288         } else
 289                 retval = ((hw->media_type == e1000_media_type_fiber) ?
 290                           e1000_setup_link(hw) : e1000_force_mac_fc(hw));
 291
 292         clear_bit(__E1000_RESETTING, &adapter->flags);
 293         return retval;
 294 }
 295
 296 static uint32_t
 297 e1000_get_rx_csum(struct net_device *netdev)
 298 {
 299         struct e1000_adapter *adapter = netdev_priv(netdev);
 300         return adapter->rx_csum;
 301 }
 302
 303 static int
 304 e1000_set_rx_csum(struct net_device *netdev, uint32_t data)
 305 {
 306         struct e1000_adapter *adapter = netdev_priv(netdev);
 307         adapter->rx_csum = data;
 308
 309         if (netif_running(netdev))
 310                 e1000_reinit_locked(adapter);
 311         else
 312                 e1000_reset(adapter);
 313         return 0;
 314 }
 315
 316 static uint32_t
 317 e1000_get_tx_csum(struct net_device *netdev)
 318 {
 319         return (netdev->features & NETIF_F_HW_CSUM) != 0;
 320 }
 321
 322 static int
 323 e1000_set_tx_csum(struct net_device *netdev, uint32_t data)
 324 {
 325         struct e1000_adapter *adapter = netdev_priv(netdev);
 326
 327         if (adapter->hw.mac_type < e1000_82543) {
 328                 if (!data)
 329                         return -EINVAL;
 330                 return 0;
 331         }
 332
 333         if (data)
 334                 netdev->features |= NETIF_F_HW_CSUM;
 335         else
 336                 netdev->features &= ~NETIF_F_HW_CSUM;
 337
 338         return 0;
 339 }
 340
 341 #ifdef NETIF_F_TSO
 342 static int
 343 e1000_set_tso(struct net_device *netdev, uint32_t data)
 344 {
 345         struct e1000_adapter *adapter = netdev_priv(netdev);
 346         if ((adapter->hw.mac_type < e1000_82544) ||
 347             (adapter->hw.mac_type == e1000_82547))
 348                 return data ? -EINVAL : 0;
 349
 350         if (data)
 351                 netdev->features |= NETIF_F_TSO;
 352         else
 353                 netdev->features &= ~NETIF_F_TSO;
 354
 355 #ifdef NETIF_F_TSO6
 356         if (data)
 357                 netdev->features |= NETIF_F_TSO6;
 358         else
 359                 netdev->features &= ~NETIF_F_TSO6;
 360 #endif
 361
 362         DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
 363         adapter->tso_force = TRUE;
 364         return 0;
 365 }
 366 #endif /* NETIF_F_TSO */
 367
 368 static uint32_t
 369 e1000_get_msglevel(struct net_device *netdev)
 370 {
 371         struct e1000_adapter *adapter = netdev_priv(netdev);
 372         return adapter->msg_enable;
 373 }
 374
 375 static void
 376 e1000_set_msglevel(struct net_device *netdev, uint32_t data)
 377 {
 378         struct e1000_adapter *adapter = netdev_priv(netdev);
 379         adapter->msg_enable = data;
 380 }
 381
 382 static int
 383 e1000_get_regs_len(struct net_device *netdev)
 384 {
 385 #define E1000_REGS_LEN 32
 386         return E1000_REGS_LEN * sizeof(uint32_t);
 387 }
 388
 389 static void
 390 e1000_get_regs(struct net_device *netdev,
 391                struct ethtool_regs *regs, void *p)
 392 {
 393         struct e1000_adapter *adapter = netdev_priv(netdev);
 394         struct e1000_hw *hw = &adapter->hw;
 395         uint32_t *regs_buff = p;
 396         uint16_t phy_data;
 397
 398         memset(p, 0, E1000_REGS_LEN * sizeof(uint32_t));
 399
 400         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 401
 402         regs_buff[0]  = E1000_READ_REG(hw, CTRL);
 403         regs_buff[1]  = E1000_READ_REG(hw, STATUS);
 404
 405         regs_buff[2]  = E1000_READ_REG(hw, RCTL);
 406         regs_buff[3]  = E1000_READ_REG(hw, RDLEN);
 407         regs_buff[4]  = E1000_READ_REG(hw, RDH);
 408         regs_buff[5]  = E1000_READ_REG(hw, RDT);
 409         regs_buff[6]  = E1000_READ_REG(hw, RDTR);
 410
 411         regs_buff[7]  = E1000_READ_REG(hw, TCTL);
 412         regs_buff[8]  = E1000_READ_REG(hw, TDLEN);
 413         regs_buff[9]  = E1000_READ_REG(hw, TDH);
 414         regs_buff[10] = E1000_READ_REG(hw, TDT);
 415         regs_buff[11] = E1000_READ_REG(hw, TIDV);
 416
 417         regs_buff[12] = adapter->hw.phy_type;  /* PHY type (IGP=1, M88=0) */
 418         if (hw->phy_type == e1000_phy_igp) {
 419                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 420                                     IGP01E1000_PHY_AGC_A);
 421                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
 422                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 423                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 424                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 425                                     IGP01E1000_PHY_AGC_B);
 426                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
 427                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 428                 regs_buff[14] = (uint32_t)phy_data; /* cable length */
 429                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 430                                     IGP01E1000_PHY_AGC_C);
 431                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
 432                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 433                 regs_buff[15] = (uint32_t)phy_data; /* cable length */
 434                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 435                                     IGP01E1000_PHY_AGC_D);
 436                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
 437                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 438                 regs_buff[16] = (uint32_t)phy_data; /* cable length */
 439                 regs_buff[17] = 0; /* extended 10bt distance (not needed) */
 440                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 441                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
 442                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 443                 regs_buff[18] = (uint32_t)phy_data; /* cable polarity */
 444                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 445                                     IGP01E1000_PHY_PCS_INIT_REG);
 446                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
 447                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 448                 regs_buff[19] = (uint32_t)phy_data; /* cable polarity */
 449                 regs_buff[20] = 0; /* polarity correction enabled (always) */
 450                 regs_buff[22] = 0; /* phy receive errors (unavailable) */
 451                 regs_buff[23] = regs_buff[18]; /* mdix mode */
 452                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 453         } else {
 454                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 455                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 456                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 457                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 458                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 459                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 460                 regs_buff[17] = (uint32_t)phy_data; /* extended 10bt distance */
 461                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 462                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 463                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 464                 /* phy receive errors */
 465                 regs_buff[22] = adapter->phy_stats.receive_errors;
 466                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 467         }
 468         regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
 469         e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
 470         regs_buff[24] = (uint32_t)phy_data;  /* phy local receiver status */
 471         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 472         if (hw->mac_type >= e1000_82540 &&
 473             hw->mac_type < e1000_82571 &&
 474             hw->media_type == e1000_media_type_copper) {
 475                 regs_buff[26] = E1000_READ_REG(hw, MANC);
 476         }
 477 }
 478
 479 static int
 480 e1000_get_eeprom_len(struct net_device *netdev)
 481 {
 482         struct e1000_adapter *adapter = netdev_priv(netdev);
 483         return adapter->hw.eeprom.word_size * 2;
 484 }
 485
 486 static int
 487 e1000_get_eeprom(struct net_device *netdev,
 488                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 489 {
 490         struct e1000_adapter *adapter = netdev_priv(netdev);
 491         struct e1000_hw *hw = &adapter->hw;
 492         uint16_t *eeprom_buff;
 493         int first_word, last_word;
 494         int ret_val = 0;
 495         uint16_t i;
 496
 497         if (eeprom->len == 0)
 498                 return -EINVAL;
 499
 500         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 501
 502         first_word = eeprom->offset >> 1;
 503         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 504
 505         eeprom_buff = kmalloc(sizeof(uint16_t) *
 506                         (last_word - first_word + 1), GFP_KERNEL);
 507         if (!eeprom_buff)
 508                 return -ENOMEM;
 509
 510         if (hw->eeprom.type == e1000_eeprom_spi)
 511                 ret_val = e1000_read_eeprom(hw, first_word,
 512                                             last_word - first_word + 1,
 513                                             eeprom_buff);
 514         else {
 515                 for (i = 0; i < last_word - first_word + 1; i++)
 516                         if ((ret_val = e1000_read_eeprom(hw, first_word + i, 1,
 517                                                         &eeprom_buff[i])))
 518                                 break;
 519         }
 520
 521         /* Device's eeprom is always little-endian, word addressable */
 522         for (i = 0; i < last_word - first_word + 1; i++)
 523                 le16_to_cpus(&eeprom_buff[i]);
 524
 525         memcpy(bytes, (uint8_t *)eeprom_buff + (eeprom->offset & 1),
 526                         eeprom->len);
 527         kfree(eeprom_buff);
 528
 529         return ret_val;
 530 }
 531
 532 static int
 533 e1000_set_eeprom(struct net_device *netdev,
 534                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 535 {
 536         struct e1000_adapter *adapter = netdev_priv(netdev);
 537         struct e1000_hw *hw = &adapter->hw;
 538         uint16_t *eeprom_buff;
 539         void *ptr;
 540         int max_len, first_word, last_word, ret_val = 0;
 541         uint16_t i;
 542
 543         if (eeprom->len == 0)
 544                 return -EOPNOTSUPP;
 545
 546         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 547                 return -EFAULT;
 548
 549         max_len = hw->eeprom.word_size * 2;
 550
 551         first_word = eeprom->offset >> 1;
 552         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 553         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 554         if (!eeprom_buff)
 555                 return -ENOMEM;
 556
 557         ptr = (void *)eeprom_buff;
 558
 559         if (eeprom->offset & 1) {
 560                 /* need read/modify/write of first changed EEPROM word */
 561                 /* only the second byte of the word is being modified */
 562                 ret_val = e1000_read_eeprom(hw, first_word, 1,
 563                                             &eeprom_buff[0]);
 564                 ptr++;
 565         }
 566         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 567                 /* need read/modify/write of last changed EEPROM word */
 568                 /* only the first byte of the word is being modified */
 569                 ret_val = e1000_read_eeprom(hw, last_word, 1,
 570                                   &eeprom_buff[last_word - first_word]);
 571         }
 572
 573         /* Device's eeprom is always little-endian, word addressable */
 574         for (i = 0; i < last_word - first_word + 1; i++)
 575                 le16_to_cpus(&eeprom_buff[i]);
 576
 577         memcpy(ptr, bytes, eeprom->len);
 578
 579         for (i = 0; i < last_word - first_word + 1; i++)
 580                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 581
 582         ret_val = e1000_write_eeprom(hw, first_word,
 583                                      last_word - first_word + 1, eeprom_buff);
 584
 585         /* Update the checksum over the first part of the EEPROM if needed
 586          * and flush shadow RAM for 82573 conrollers */
 587         if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) ||
 588                                 (hw->mac_type == e1000_82573)))
 589                 e1000_update_eeprom_checksum(hw);
 590
 591         kfree(eeprom_buff);
 592         return ret_val;
 593 }
 594
 595 static void
 596 e1000_get_drvinfo(struct net_device *netdev,
 597                        struct ethtool_drvinfo *drvinfo)
 598 {
 599         struct e1000_adapter *adapter = netdev_priv(netdev);
 600         char firmware_version[32];
 601         uint16_t eeprom_data;
 602
 603         strncpy(drvinfo->driver,  e1000_driver_name, 32);
 604         strncpy(drvinfo->version, e1000_driver_version, 32);
 605
 606         /* EEPROM image version # is reported as firmware version # for
 607          * 8257{1|2|3} controllers */
 608         e1000_read_eeprom(&adapter->hw, 5, 1, &eeprom_data);
 609         switch (adapter->hw.mac_type) {
 610         case e1000_82571:
 611         case e1000_82572:
 612         case e1000_82573:
 613         case e1000_80003es2lan:
 614         case e1000_ich8lan:
 615                 sprintf(firmware_version, "%d.%d-%d",
 616                         (eeprom_data & 0xF000) >> 12,
 617                         (eeprom_data & 0x0FF0) >> 4,
 618                         eeprom_data & 0x000F);
 619                 break;
 620         default:
 621                 sprintf(firmware_version, "N/A");
 622         }
 623
 624         strncpy(drvinfo->fw_version, firmware_version, 32);
 625         strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 626         drvinfo->n_stats = E1000_STATS_LEN;
 627         drvinfo->testinfo_len = E1000_TEST_LEN;
 628         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 629         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 630 }
 631
 632 static void
 633 e1000_get_ringparam(struct net_device *netdev,
 634                     struct ethtool_ringparam *ring)
 635 {
 636         struct e1000_adapter *adapter = netdev_priv(netdev);
 637         e1000_mac_type mac_type = adapter->hw.mac_type;
 638         struct e1000_tx_ring *txdr = adapter->tx_ring;
 639         struct e1000_rx_ring *rxdr = adapter->rx_ring;
 640
 641         ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
 642                 E1000_MAX_82544_RXD;
 643         ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
 644                 E1000_MAX_82544_TXD;
 645         ring->rx_mini_max_pending = 0;
 646         ring->rx_jumbo_max_pending = 0;
 647         ring->rx_pending = rxdr->count;
 648         ring->tx_pending = txdr->count;
 649         ring->rx_mini_pending = 0;
 650         ring->rx_jumbo_pending = 0;
 651 }
 652
 653 static int
 654 e1000_set_ringparam(struct net_device *netdev,
 655                     struct ethtool_ringparam *ring)
 656 {
 657         struct e1000_adapter *adapter = netdev_priv(netdev);
 658         e1000_mac_type mac_type = adapter->hw.mac_type;
 659         struct e1000_tx_ring *txdr, *tx_old;
 660         struct e1000_rx_ring *rxdr, *rx_old;
 661         int i, err, tx_ring_size, rx_ring_size;
 662
 663         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 664                 return -EINVAL;
 665
 666         tx_ring_size = sizeof(struct e1000_tx_ring) * adapter->num_tx_queues;
 667         rx_ring_size = sizeof(struct e1000_rx_ring) * adapter->num_rx_queues;
 668
 669         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 670                 msleep(1);
 671
 672         if (netif_running(adapter->netdev))
 673                 e1000_down(adapter);
 674
 675         tx_old = adapter->tx_ring;
 676         rx_old = adapter->rx_ring;
 677
 678         err = -ENOMEM;
 679         txdr = kzalloc(tx_ring_size, GFP_KERNEL);
 680         if (!txdr)
 681                 goto err_alloc_tx;
 682
 683         rxdr = kzalloc(rx_ring_size, GFP_KERNEL);
 684         if (!rxdr)
 685                 goto err_alloc_rx;
 686
 687         adapter->tx_ring = txdr;
 688         adapter->rx_ring = rxdr;
 689
 690         rxdr->count = max(ring->rx_pending,(uint32_t)E1000_MIN_RXD);
 691         rxdr->count = min(rxdr->count,(uint32_t)(mac_type < e1000_82544 ?
 692                 E1000_MAX_RXD : E1000_MAX_82544_RXD));
 693         E1000_ROUNDUP(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 694
 695         txdr->count = max(ring->tx_pending,(uint32_t)E1000_MIN_TXD);
 696         txdr->count = min(txdr->count,(uint32_t)(mac_type < e1000_82544 ?
 697                 E1000_MAX_TXD : E1000_MAX_82544_TXD));
 698         E1000_ROUNDUP(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 699
 700         for (i = 0; i < adapter->num_tx_queues; i++)
 701                 txdr[i].count = txdr->count;
 702         for (i = 0; i < adapter->num_rx_queues; i++)
 703                 rxdr[i].count = rxdr->count;
 704
 705         if (netif_running(adapter->netdev)) {
 706                 /* Try to get new resources before deleting old */
 707                 if ((err = e1000_setup_all_rx_resources(adapter)))
 708                         goto err_setup_rx;
 709                 if ((err = e1000_setup_all_tx_resources(adapter)))
 710                         goto err_setup_tx;
 711
 712                 /* save the new, restore the old in order to free it,
 713                  * then restore the new back again */
 714
 715                 adapter->rx_ring = rx_old;
 716                 adapter->tx_ring = tx_old;
 717                 e1000_free_all_rx_resources(adapter);
 718                 e1000_free_all_tx_resources(adapter);
 719                 kfree(tx_old);
 720                 kfree(rx_old);
 721                 adapter->rx_ring = rxdr;
 722                 adapter->tx_ring = txdr;
 723                 if ((err = e1000_up(adapter)))
 724                         goto err_setup;
 725         }
 726
 727         clear_bit(__E1000_RESETTING, &adapter->flags);
 728         return 0;
 729 err_setup_tx:
 730         e1000_free_all_rx_resources(adapter);
 731 err_setup_rx:
 732         adapter->rx_ring = rx_old;
 733         adapter->tx_ring = tx_old;
 734         kfree(rxdr);
 735 err_alloc_rx:
 736         kfree(txdr);
 737 err_alloc_tx:
 738         e1000_up(adapter);
 739 err_setup:
 740         clear_bit(__E1000_RESETTING, &adapter->flags);
 741         return err;
 742 }
 743
 744 #define REG_PATTERN_TEST(R, M, W)                                              \
 745 {                                                                              \
 746         uint32_t pat, value;                                                   \
 747         uint32_t test[] =                                                      \
 748                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};              \
 749         for (pat = 0; pat < sizeof(test)/sizeof(test[0]); pat++) {              \
 750                 E1000_WRITE_REG(&adapter->hw, R, (test[pat] & W));             \
 751                 value = E1000_READ_REG(&adapter->hw, R);                       \
 752                 if (value != (test[pat] & W & M)) {                             \
 753                         DPRINTK(DRV, ERR, "pattern test reg %04X failed: got " \
 754                                 "0x%08X expected 0x%08X\n",                    \
 755                                 E1000_##R, value, (test[pat] & W & M));        \
 756                         *data = (adapter->hw.mac_type < e1000_82543) ?         \
 757                                 E1000_82542_##R : E1000_##R;                   \
 758                         return 1;                                              \
 759                 }                                                              \
 760         }                                                                      \
 761 }
 762
 763 #define REG_SET_AND_CHECK(R, M, W)                                             \
 764 {                                                                              \
 765         uint32_t value;                                                        \
 766         E1000_WRITE_REG(&adapter->hw, R, W & M);                               \
 767         value = E1000_READ_REG(&adapter->hw, R);                               \
 768         if ((W & M) != (value & M)) {                                          \
 769                 DPRINTK(DRV, ERR, "set/check reg %04X test failed: got 0x%08X "\
 770                         "expected 0x%08X\n", E1000_##R, (value & M), (W & M)); \
 771                 *data = (adapter->hw.mac_type < e1000_82543) ?                 \
 772                         E1000_82542_##R : E1000_##R;                           \
 773                 return 1;                                                      \
 774         }                                                                      \
 775 }
 776
 777 static int
 778 e1000_reg_test(struct e1000_adapter *adapter, uint64_t *data)
 779 {
 780         uint32_t value, before, after;
 781         uint32_t i, toggle;
 782
 783         /* The status register is Read Only, so a write should fail.
 784          * Some bits that get toggled are ignored.
 785          */
 786         switch (adapter->hw.mac_type) {
 787         /* there are several bits on newer hardware that are r/w */
 788         case e1000_82571:
 789         case e1000_82572:
 790         case e1000_80003es2lan:
 791                 toggle = 0x7FFFF3FF;
 792                 break;
 793         case e1000_82573:
 794         case e1000_ich8lan:
 795                 toggle = 0x7FFFF033;
 796                 break;
 797         default:
 798                 toggle = 0xFFFFF833;
 799                 break;
 800         }
 801
 802         before = E1000_READ_REG(&adapter->hw, STATUS);
 803         value = (E1000_READ_REG(&adapter->hw, STATUS) & toggle);
 804         E1000_WRITE_REG(&adapter->hw, STATUS, toggle);
 805         after = E1000_READ_REG(&adapter->hw, STATUS) & toggle;
 806         if (value != after) {
 807                 DPRINTK(DRV, ERR, "failed STATUS register test got: "
 808                         "0x%08X expected: 0x%08X\n", after, value);
 809                 *data = 1;
 810                 return 1;
 811         }
 812         /* restore previous status */
 813         E1000_WRITE_REG(&adapter->hw, STATUS, before);
 814
 815         if (adapter->hw.mac_type != e1000_ich8lan) {
 816                 REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 817                 REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
 818                 REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
 819                 REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
 820         }
 821
 822         REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
 823         REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 824         REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
 825         REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
 826         REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
 827         REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
 828         REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
 829         REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 830         REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 831         REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
 832
 833         REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
 834
 835         before = (adapter->hw.mac_type == e1000_ich8lan ?
 836                   0x06C3B33E : 0x06DFB3FE);
 837         REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
 838         REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
 839
 840         if (adapter->hw.mac_type >= e1000_82543) {
 841
 842                 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
 843                 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 844                 if (adapter->hw.mac_type != e1000_ich8lan)
 845                         REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
 846                 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 847                 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
 848                 value = (adapter->hw.mac_type == e1000_ich8lan ?
 849                          E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES);
 850                 for (i = 0; i < value; i++) {
 851                         REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF,
 852                                          0xFFFFFFFF);
 853                 }
 854
 855         } else {
 856
 857                 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
 858                 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
 859                 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
 860                 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
 861
 862         }
 863
 864         value = (adapter->hw.mac_type == e1000_ich8lan ?
 865                         E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE);
 866         for (i = 0; i < value; i++)
 867                 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
 868
 869         *data = 0;
 870         return 0;
 871 }
 872
 873 static int
 874 e1000_eeprom_test(struct e1000_adapter *adapter, uint64_t *data)
 875 {
 876         uint16_t temp;
 877         uint16_t checksum = 0;
 878         uint16_t i;
 879
 880         *data = 0;
 881         /* Read and add up the contents of the EEPROM */
 882         for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
 883                 if ((e1000_read_eeprom(&adapter->hw, i, 1, &temp)) < 0) {
 884                         *data = 1;
 885                         break;
 886                 }
 887                 checksum += temp;
 888         }
 889
 890         /* If Checksum is not Correct return error else test passed */
 891         if ((checksum != (uint16_t) EEPROM_SUM) && !(*data))
 892                 *data = 2;
 893
 894         return *data;
 895 }
 896
 897 static irqreturn_t
 898 e1000_test_intr(int irq, void *data)
 899 {
 900         struct net_device *netdev = (struct net_device *) data;
 901         struct e1000_adapter *adapter = netdev_priv(netdev);
 902
 903         adapter->test_icr |= E1000_READ_REG(&adapter->hw, ICR);
 904
 905         return IRQ_HANDLED;
 906 }
 907
 908 static int
 909 e1000_intr_test(struct e1000_adapter *adapter, uint64_t *data)
 910 {
 911         struct net_device *netdev = adapter->netdev;
 912         uint32_t mask, i=0, shared_int = TRUE;
 913         uint32_t irq = adapter->pdev->irq;
 914
 915         *data = 0;
 916
 917         /* NOTE: we don't test MSI interrupts here, yet */
 918         /* Hook up test interrupt handler just for this test */
 919         if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 920                          netdev))
 921                 shared_int = FALSE;
 922         else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
 923                  netdev->name, netdev)) {
 924                 *data = 1;
 925                 return -1;
 926         }
 927         DPRINTK(HW, INFO, "testing %s interrupt\n",
 928                 (shared_int ? "shared" : "unshared"));
 929
 930         /* Disable all the interrupts */
 931         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 932         msleep(10);
 933
 934         /* Test each interrupt */
 935         for (; i < 10; i++) {
 936
 937                 if (adapter->hw.mac_type == e1000_ich8lan && i == 8)
 938                         continue;
 939
 940                 /* Interrupt to test */
 941                 mask = 1 << i;
 942
 943                 if (!shared_int) {
 944                         /* Disable the interrupt to be reported in
 945                          * the cause register and then force the same
 946                          * interrupt and see if one gets posted.  If
 947                          * an interrupt was posted to the bus, the
 948                          * test failed.
 949                          */
 950                         adapter->test_icr = 0;
 951                         E1000_WRITE_REG(&adapter->hw, IMC, mask);
 952                         E1000_WRITE_REG(&adapter->hw, ICS, mask);
 953                         msleep(10);
 954
 955                         if (adapter->test_icr & mask) {
 956                                 *data = 3;
 957                                 break;
 958                         }
 959                 }
 960
 961                 /* Enable the interrupt to be reported in
 962                  * the cause register and then force the same
 963                  * interrupt and see if one gets posted.  If
 964                  * an interrupt was not posted to the bus, the
 965                  * test failed.
 966                  */
 967                 adapter->test_icr = 0;
 968                 E1000_WRITE_REG(&adapter->hw, IMS, mask);
 969                 E1000_WRITE_REG(&adapter->hw, ICS, mask);
 970                 msleep(10);
 971
 972                 if (!(adapter->test_icr & mask)) {
 973                         *data = 4;
 974                         break;
 975                 }
 976
 977                 if (!shared_int) {
 978                         /* Disable the other interrupts to be reported in
 979                          * the cause register and then force the other
 980                          * interrupts and see if any get posted.  If
 981                          * an interrupt was posted to the bus, the
 982                          * test failed.
 983                          */
 984                         adapter->test_icr = 0;
 985                         E1000_WRITE_REG(&adapter->hw, IMC, ~mask & 0x00007FFF);
 986                         E1000_WRITE_REG(&adapter->hw, ICS, ~mask & 0x00007FFF);
 987                         msleep(10);
 988
 989                         if (adapter->test_icr) {
 990                                 *data = 5;
 991                                 break;
 992                         }
 993                 }
 994         }
 995
 996         /* Disable all the interrupts */
 997         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 998         msleep(10);
 999
1000         /* Unhook test interrupt handler */
1001         free_irq(irq, netdev);
1002
1003         return *data;
1004 }
1005
1006 static void
1007 e1000_free_desc_rings(struct e1000_adapter *adapter)
1008 {
1009         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1010         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1011         struct pci_dev *pdev = adapter->pdev;
1012         int i;
1013
1014         if (txdr->desc && txdr->buffer_info) {
1015                 for (i = 0; i < txdr->count; i++) {
1016                         if (txdr->buffer_info[i].dma)
1017                                 pci_unmap_single(pdev, txdr->buffer_info[i].dma,
1018                                                  txdr->buffer_info[i].length,
1019                                                  PCI_DMA_TODEVICE);
1020                         if (txdr->buffer_info[i].skb)
1021                                 dev_kfree_skb(txdr->buffer_info[i].skb);
1022                 }
1023         }
1024
1025         if (rxdr->desc && rxdr->buffer_info) {
1026                 for (i = 0; i < rxdr->count; i++) {
1027                         if (rxdr->buffer_info[i].dma)
1028                                 pci_unmap_single(pdev, rxdr->buffer_info[i].dma,
1029                                                  rxdr->buffer_info[i].length,
1030                                                  PCI_DMA_FROMDEVICE);
1031                         if (rxdr->buffer_info[i].skb)
1032                                 dev_kfree_skb(rxdr->buffer_info[i].skb);
1033                 }
1034         }
1035
1036         if (txdr->desc) {
1037                 pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma);
1038                 txdr->desc = NULL;
1039         }
1040         if (rxdr->desc) {
1041                 pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma);
1042                 rxdr->desc = NULL;
1043         }
1044
1045         kfree(txdr->buffer_info);
1046         txdr->buffer_info = NULL;
1047         kfree(rxdr->buffer_info);
1048         rxdr->buffer_info = NULL;
1049
1050         return;
1051 }
1052
1053 static int
1054 e1000_setup_desc_rings(struct e1000_adapter *adapter)
1055 {
1056         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1057         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1058         struct pci_dev *pdev = adapter->pdev;
1059         uint32_t rctl;
1060         int size, i, ret_val;
1061
1062         /* Setup Tx descriptor ring and Tx buffers */
1063
1064         if (!txdr->count)
1065                 txdr->count = E1000_DEFAULT_TXD;
1066
1067         size = txdr->count * sizeof(struct e1000_buffer);
1068         if (!(txdr->buffer_info = kmalloc(size, GFP_KERNEL))) {
1069                 ret_val = 1;
1070                 goto err_nomem;
1071         }
1072         memset(txdr->buffer_info, 0, size);
1073
1074         txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
1075         E1000_ROUNDUP(txdr->size, 4096);
1076         if (!(txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma))) {
1077                 ret_val = 2;
1078                 goto err_nomem;
1079         }
1080         memset(txdr->desc, 0, txdr->size);
1081         txdr->next_to_use = txdr->next_to_clean = 0;
1082
1083         E1000_WRITE_REG(&adapter->hw, TDBAL,
1084                         ((uint64_t) txdr->dma & 0x00000000FFFFFFFF));
1085         E1000_WRITE_REG(&adapter->hw, TDBAH, ((uint64_t) txdr->dma >> 32));
1086         E1000_WRITE_REG(&adapter->hw, TDLEN,
1087                         txdr->count * sizeof(struct e1000_tx_desc));
1088         E1000_WRITE_REG(&adapter->hw, TDH, 0);
1089         E1000_WRITE_REG(&adapter->hw, TDT, 0);
1090         E1000_WRITE_REG(&adapter->hw, TCTL,
1091                         E1000_TCTL_PSP | E1000_TCTL_EN |
1092                         E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1093                         E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1094
1095         for (i = 0; i < txdr->count; i++) {
1096                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
1097                 struct sk_buff *skb;
1098                 unsigned int size = 1024;
1099
1100                 if (!(skb = alloc_skb(size, GFP_KERNEL))) {
1101                         ret_val = 3;
1102                         goto err_nomem;
1103                 }
1104                 skb_put(skb, size);
1105                 txdr->buffer_info[i].skb = skb;
1106                 txdr->buffer_info[i].length = skb->len;
1107                 txdr->buffer_info[i].dma =
1108                         pci_map_single(pdev, skb->data, skb->len,
1109                                        PCI_DMA_TODEVICE);
1110                 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);
1111                 tx_desc->lower.data = cpu_to_le32(skb->len);
1112                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1113                                                    E1000_TXD_CMD_IFCS |
1114                                                    E1000_TXD_CMD_RPS);
1115                 tx_desc->upper.data = 0;
1116         }
1117
1118         /* Setup Rx descriptor ring and Rx buffers */
1119
1120         if (!rxdr->count)
1121                 rxdr->count = E1000_DEFAULT_RXD;
1122
1123         size = rxdr->count * sizeof(struct e1000_buffer);
1124         if (!(rxdr->buffer_info = kmalloc(size, GFP_KERNEL))) {
1125                 ret_val = 4;
1126                 goto err_nomem;
1127         }
1128         memset(rxdr->buffer_info, 0, size);
1129
1130         rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
1131         if (!(rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma))) {
1132                 ret_val = 5;
1133                 goto err_nomem;
1134         }
1135         memset(rxdr->desc, 0, rxdr->size);
1136         rxdr->next_to_use = rxdr->next_to_clean = 0;
1137
1138         rctl = E1000_READ_REG(&adapter->hw, RCTL);
1139         E1000_WRITE_REG(&adapter->hw, RCTL, rctl & ~E1000_RCTL_EN);
1140         E1000_WRITE_REG(&adapter->hw, RDBAL,
1141                         ((uint64_t) rxdr->dma & 0xFFFFFFFF));
1142         E1000_WRITE_REG(&adapter->hw, RDBAH, ((uint64_t) rxdr->dma >> 32));
1143         E1000_WRITE_REG(&adapter->hw, RDLEN, rxdr->size);
1144         E1000_WRITE_REG(&adapter->hw, RDH, 0);
1145         E1000_WRITE_REG(&adapter->hw, RDT, 0);
1146         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1147                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1148                 (adapter->hw.mc_filter_type << E1000_RCTL_MO_SHIFT);
1149         E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
1150
1151         for (i = 0; i < rxdr->count; i++) {
1152                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
1153                 struct sk_buff *skb;
1154
1155                 if (!(skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN,
1156                                 GFP_KERNEL))) {
1157                         ret_val = 6;
1158                         goto err_nomem;
1159                 }
1160                 skb_reserve(skb, NET_IP_ALIGN);
1161                 rxdr->buffer_info[i].skb = skb;
1162                 rxdr->buffer_info[i].length = E1000_RXBUFFER_2048;
1163                 rxdr->buffer_info[i].dma =
1164                         pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048,
1165                                        PCI_DMA_FROMDEVICE);
1166                 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);
1167                 memset(skb->data, 0x00, skb->len);
1168         }
1169
1170         return 0;
1171
1172 err_nomem:
1173         e1000_free_desc_rings(adapter);
1174         return ret_val;
1175 }
1176
1177 static void
1178 e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1179 {
1180         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1181         e1000_write_phy_reg(&adapter->hw, 29, 0x001F);
1182         e1000_write_phy_reg(&adapter->hw, 30, 0x8FFC);
1183         e1000_write_phy_reg(&adapter->hw, 29, 0x001A);
1184         e1000_write_phy_reg(&adapter->hw, 30, 0x8FF0);
1185 }
1186
1187 static void
1188 e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
1189 {
1190         uint16_t phy_reg;
1191
1192         /* Because we reset the PHY above, we need to re-force TX_CLK in the
1193          * Extended PHY Specific Control Register to 25MHz clock.  This
1194          * value defaults back to a 2.5MHz clock when the PHY is reset.
1195          */
1196         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1197         phy_reg |= M88E1000_EPSCR_TX_CLK_25;
1198         e1000_write_phy_reg(&adapter->hw,
1199                 M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
1200
1201         /* In addition, because of the s/w reset above, we need to enable
1202          * CRS on TX.  This must be set for both full and half duplex
1203          * operation.
1204          */
1205         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1206         phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
1207         e1000_write_phy_reg(&adapter->hw,
1208                 M88E1000_PHY_SPEC_CTRL, phy_reg);
1209 }
1210
1211 static int
1212 e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
1213 {
1214         uint32_t ctrl_reg;
1215         uint16_t phy_reg;
1216
1217         /* Setup the Device Control Register for PHY loopback test. */
1218
1219         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1220         ctrl_reg |= (E1000_CTRL_ILOS |          /* Invert Loss-Of-Signal */
1221                      E1000_CTRL_FRCSPD |        /* Set the Force Speed Bit */
1222                      E1000_CTRL_FRCDPX |        /* Set the Force Duplex Bit */
1223                      E1000_CTRL_SPD_1000 |      /* Force Speed to 1000 */
1224                      E1000_CTRL_FD);            /* Force Duplex to FULL */
1225
1226         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1227
1228         /* Read the PHY Specific Control Register (0x10) */
1229         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1230
1231         /* Clear Auto-Crossover bits in PHY Specific Control Register
1232          * (bits 6:5).
1233          */
1234         phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
1235         e1000_write_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
1236
1237         /* Perform software reset on the PHY */
1238         e1000_phy_reset(&adapter->hw);
1239
1240         /* Have to setup TX_CLK and TX_CRS after software reset */
1241         e1000_phy_reset_clk_and_crs(adapter);
1242
1243         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8100);
1244
1245         /* Wait for reset to complete. */
1246         udelay(500);
1247
1248         /* Have to setup TX_CLK and TX_CRS after software reset */
1249         e1000_phy_reset_clk_and_crs(adapter);
1250
1251         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1252         e1000_phy_disable_receiver(adapter);
1253
1254         /* Set the loopback bit in the PHY control register. */
1255         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1256         phy_reg |= MII_CR_LOOPBACK;
1257         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1258
1259         /* Setup TX_CLK and TX_CRS one more time. */
1260         e1000_phy_reset_clk_and_crs(adapter);
1261
1262         /* Check Phy Configuration */
1263         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1264         if (phy_reg != 0x4100)
1265                  return 9;
1266
1267         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1268         if (phy_reg != 0x0070)
1269                 return 10;
1270
1271         e1000_read_phy_reg(&adapter->hw, 29, &phy_reg);
1272         if (phy_reg != 0x001A)
1273                 return 11;
1274
1275         return 0;
1276 }
1277
1278 static int
1279 e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1280 {
1281         uint32_t ctrl_reg = 0;
1282         uint32_t stat_reg = 0;
1283
1284         adapter->hw.autoneg = FALSE;
1285
1286         if (adapter->hw.phy_type == e1000_phy_m88) {
1287                 /* Auto-MDI/MDIX Off */
1288                 e1000_write_phy_reg(&adapter->hw,
1289                                     M88E1000_PHY_SPEC_CTRL, 0x0808);
1290                 /* reset to update Auto-MDI/MDIX */
1291                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x9140);
1292                 /* autoneg off */
1293                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8140);
1294         } else if (adapter->hw.phy_type == e1000_phy_gg82563)
1295                 e1000_write_phy_reg(&adapter->hw,
1296                                     GG82563_PHY_KMRN_MODE_CTRL,
1297                                     0x1CC);
1298
1299         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1300
1301         if (adapter->hw.phy_type == e1000_phy_ife) {
1302                 /* force 100, set loopback */
1303                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x6100);
1304
1305                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1306                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1307                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1308                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1309                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1310                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1311         } else {
1312                 /* force 1000, set loopback */
1313                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x4140);
1314
1315                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1316                 ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1317                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1318                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1319                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1320                              E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1321                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1322         }
1323
1324         if (adapter->hw.media_type == e1000_media_type_copper &&
1325            adapter->hw.phy_type == e1000_phy_m88)
1326                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1327         else {
1328                 /* Set the ILOS bit on the fiber Nic is half
1329                  * duplex link is detected. */
1330                 stat_reg = E1000_READ_REG(&adapter->hw, STATUS);
1331                 if ((stat_reg & E1000_STATUS_FD) == 0)
1332                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1333         }
1334
1335         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1336
1337         /* Disable the receiver on the PHY so when a cable is plugged in, the
1338          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1339          */
1340         if (adapter->hw.phy_type == e1000_phy_m88)
1341                 e1000_phy_disable_receiver(adapter);
1342
1343         udelay(500);
1344
1345         return 0;
1346 }
1347
1348 static int
1349 e1000_set_phy_loopback(struct e1000_adapter *adapter)
1350 {
1351         uint16_t phy_reg = 0;
1352         uint16_t count = 0;
1353
1354         switch (adapter->hw.mac_type) {
1355         case e1000_82543:
1356                 if (adapter->hw.media_type == e1000_media_type_copper) {
1357                         /* Attempt to setup Loopback mode on Non-integrated PHY.
1358                          * Some PHY registers get corrupted at random, so
1359                          * attempt this 10 times.
1360                          */
1361                         while (e1000_nonintegrated_phy_loopback(adapter) &&
1362                               count++ < 10);
1363                         if (count < 11)
1364                                 return 0;
1365                 }
1366                 break;
1367
1368         case e1000_82544:
1369         case e1000_82540:
1370         case e1000_82545:
1371         case e1000_82545_rev_3:
1372         case e1000_82546:
1373         case e1000_82546_rev_3:
1374         case e1000_82541:
1375         case e1000_82541_rev_2:
1376         case e1000_82547:
1377         case e1000_82547_rev_2:
1378         case e1000_82571:
1379         case e1000_82572:
1380         case e1000_82573:
1381         case e1000_80003es2lan:
1382         case e1000_ich8lan:
1383                 return e1000_integrated_phy_loopback(adapter);
1384                 break;
1385
1386         default:
1387                 /* Default PHY loopback work is to read the MII
1388                  * control register and assert bit 14 (loopback mode).
1389                  */
1390                 e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1391                 phy_reg |= MII_CR_LOOPBACK;
1392                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1393                 return 0;
1394                 break;
1395         }
1396
1397         return 8;
1398 }
1399
1400 static int
1401 e1000_setup_loopback_test(struct e1000_adapter *adapter)
1402 {
1403         struct e1000_hw *hw = &adapter->hw;
1404         uint32_t rctl;
1405
1406         if (hw->media_type == e1000_media_type_fiber ||
1407             hw->media_type == e1000_media_type_internal_serdes) {
1408                 switch (hw->mac_type) {
1409                 case e1000_82545:
1410                 case e1000_82546:
1411                 case e1000_82545_rev_3:
1412                 case e1000_82546_rev_3:
1413                         return e1000_set_phy_loopback(adapter);
1414                         break;
1415                 case e1000_82571:
1416                 case e1000_82572:
1417 #define E1000_SERDES_LB_ON 0x410
1418                         e1000_set_phy_loopback(adapter);
1419                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_ON);
1420                         msleep(10);
1421                         return 0;
1422                         break;
1423                 default:
1424                         rctl = E1000_READ_REG(hw, RCTL);
1425                         rctl |= E1000_RCTL_LBM_TCVR;
1426                         E1000_WRITE_REG(hw, RCTL, rctl);
1427                         return 0;
1428                 }
1429         } else if (hw->media_type == e1000_media_type_copper)
1430                 return e1000_set_phy_loopback(adapter);
1431
1432         return 7;
1433 }
1434
1435 static void
1436 e1000_loopback_cleanup(struct e1000_adapter *adapter)
1437 {
1438         struct e1000_hw *hw = &adapter->hw;
1439         uint32_t rctl;
1440         uint16_t phy_reg;
1441
1442         rctl = E1000_READ_REG(hw, RCTL);
1443         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1444         E1000_WRITE_REG(hw, RCTL, rctl);
1445
1446         switch (hw->mac_type) {
1447         case e1000_82571:
1448         case e1000_82572:
1449                 if (hw->media_type == e1000_media_type_fiber ||
1450                     hw->media_type == e1000_media_type_internal_serdes) {
1451 #define E1000_SERDES_LB_OFF 0x400
1452                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_OFF);
1453                         msleep(10);
1454                         break;
1455                 }
1456                 /* Fall Through */
1457         case e1000_82545:
1458         case e1000_82546:
1459         case e1000_82545_rev_3:
1460         case e1000_82546_rev_3:
1461         default:
1462                 hw->autoneg = TRUE;
1463                 if (hw->phy_type == e1000_phy_gg82563)
1464                         e1000_write_phy_reg(hw,
1465                                             GG82563_PHY_KMRN_MODE_CTRL,
1466                                             0x180);
1467                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1468                 if (phy_reg & MII_CR_LOOPBACK) {
1469                         phy_reg &= ~MII_CR_LOOPBACK;
1470                         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1471                         e1000_phy_reset(hw);
1472                 }
1473                 break;
1474         }
1475 }
1476
1477 static void
1478 e1000_create_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1479 {
1480         memset(skb->data, 0xFF, frame_size);
1481         frame_size &= ~1;
1482         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1483         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1484         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1485 }
1486
1487 static int
1488 e1000_check_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1489 {
1490         frame_size &= ~1;
1491         if (*(skb->data + 3) == 0xFF) {
1492                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1493                    (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
1494                         return 0;
1495                 }
1496         }
1497         return 13;
1498 }
1499
1500 static int
1501 e1000_run_loopback_test(struct e1000_adapter *adapter)
1502 {
1503         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1504         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1505         struct pci_dev *pdev = adapter->pdev;
1506         int i, j, k, l, lc, good_cnt, ret_val=0;
1507         unsigned long time;
1508
1509         E1000_WRITE_REG(&adapter->hw, RDT, rxdr->count - 1);
1510
1511         /* Calculate the loop count based on the largest descriptor ring
1512          * The idea is to wrap the largest ring a number of times using 64
1513          * send/receive pairs during each loop
1514          */
1515
1516         if (rxdr->count <= txdr->count)
1517                 lc = ((txdr->count / 64) * 2) + 1;
1518         else
1519                 lc = ((rxdr->count / 64) * 2) + 1;
1520
1521         k = l = 0;
1522         for (j = 0; j <= lc; j++) { /* loop count loop */
1523                 for (i = 0; i < 64; i++) { /* send the packets */
1524                         e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
1525                                         1024);
1526                         pci_dma_sync_single_for_device(pdev,
1527                                         txdr->buffer_info[k].dma,
1528                                         txdr->buffer_info[k].length,
1529                                         PCI_DMA_TODEVICE);
1530                         if (unlikely(++k == txdr->count)) k = 0;
1531                 }
1532                 E1000_WRITE_REG(&adapter->hw, TDT, k);
1533                 msleep(200);
1534                 time = jiffies; /* set the start time for the receive */
1535                 good_cnt = 0;
1536                 do { /* receive the sent packets */
1537                         pci_dma_sync_single_for_cpu(pdev,
1538                                         rxdr->buffer_info[l].dma,
1539                                         rxdr->buffer_info[l].length,
1540                                         PCI_DMA_FROMDEVICE);
1541
1542                         ret_val = e1000_check_lbtest_frame(
1543                                         rxdr->buffer_info[l].skb,
1544                                         1024);
1545                         if (!ret_val)
1546                                 good_cnt++;
1547                         if (unlikely(++l == rxdr->count)) l = 0;
1548                         /* time + 20 msecs (200 msecs on 2.4) is more than
1549                          * enough time to complete the receives, if it's
1550                          * exceeded, break and error off
1551                          */
1552                 } while (good_cnt < 64 && jiffies < (time + 20));
1553                 if (good_cnt != 64) {
1554                         ret_val = 13; /* ret_val is the same as mis-compare */
1555                         break;
1556                 }
1557                 if (jiffies >= (time + 2)) {
1558                         ret_val = 14; /* error code for time out error */
1559                         break;
1560                 }
1561         } /* end loop count loop */
1562         return ret_val;
1563 }
1564
1565 static int
1566 e1000_loopback_test(struct e1000_adapter *adapter, uint64_t *data)
1567 {
1568         /* PHY loopback cannot be performed if SoL/IDER
1569          * sessions are active */
1570         if (e1000_check_phy_reset_block(&adapter->hw)) {
1571                 DPRINTK(DRV, ERR, "Cannot do PHY loopback test "
1572                         "when SoL/IDER is active.\n");
1573                 *data = 0;
1574                 goto out;
1575         }
1576
1577         if ((*data = e1000_setup_desc_rings(adapter)))
1578                 goto out;
1579         if ((*data = e1000_setup_loopback_test(adapter)))
1580                 goto err_loopback;
1581         *data = e1000_run_loopback_test(adapter);
1582         e1000_loopback_cleanup(adapter);
1583
1584 err_loopback:
1585         e1000_free_desc_rings(adapter);
1586 out:
1587         return *data;
1588 }
1589
1590 static int
1591 e1000_link_test(struct e1000_adapter *adapter, uint64_t *data)
1592 {
1593         *data = 0;
1594         if (adapter->hw.media_type == e1000_media_type_internal_serdes) {
1595                 int i = 0;
1596                 adapter->hw.serdes_link_down = TRUE;
1597
1598                 /* On some blade server designs, link establishment
1599                  * could take as long as 2-3 minutes */
1600                 do {
1601                         e1000_check_for_link(&adapter->hw);
1602                         if (adapter->hw.serdes_link_down == FALSE)
1603                                 return *data;
1604                         msleep(20);
1605                 } while (i++ < 3750);
1606
1607                 *data = 1;
1608         } else {
1609                 e1000_check_for_link(&adapter->hw);
1610                 if (adapter->hw.autoneg)  /* if auto_neg is set wait for it */
1611                         msleep(4000);
1612
1613                 if (!(E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU)) {
1614                         *data = 1;
1615                 }
1616         }
1617         return *data;
1618 }
1619
1620 static int
1621 e1000_diag_test_count(struct net_device *netdev)
1622 {
1623         return E1000_TEST_LEN;
1624 }
1625
1626 extern void e1000_power_up_phy(struct e1000_adapter *);
1627
1628 static void
1629 e1000_diag_test(struct net_device *netdev,
1630                    struct ethtool_test *eth_test, uint64_t *data)
1631 {
1632         struct e1000_adapter *adapter = netdev_priv(netdev);
1633         boolean_t if_running = netif_running(netdev);
1634
1635         set_bit(__E1000_TESTING, &adapter->flags);
1636         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1637                 /* Offline tests */
1638
1639                 /* save speed, duplex, autoneg settings */
1640                 uint16_t autoneg_advertised = adapter->hw.autoneg_advertised;
1641                 uint8_t forced_speed_duplex = adapter->hw.forced_speed_duplex;
1642                 uint8_t autoneg = adapter->hw.autoneg;
1643
1644                 DPRINTK(HW, INFO, "offline testing starting\n");
1645
1646                 /* Link test performed before hardware reset so autoneg doesn't
1647                  * interfere with test result */
1648                 if (e1000_link_test(adapter, &data[4]))
1649                         eth_test->flags |= ETH_TEST_FL_FAILED;
1650
1651                 if (if_running)
1652                         /* indicate we're in test mode */
1653                         dev_close(netdev);
1654                 else
1655                         e1000_reset(adapter);
1656
1657                 if (e1000_reg_test(adapter, &data[0]))
1658                         eth_test->flags |= ETH_TEST_FL_FAILED;
1659
1660                 e1000_reset(adapter);
1661                 if (e1000_eeprom_test(adapter, &data[1]))
1662                         eth_test->flags |= ETH_TEST_FL_FAILED;
1663
1664                 e1000_reset(adapter);
1665                 if (e1000_intr_test(adapter, &data[2]))
1666                         eth_test->flags |= ETH_TEST_FL_FAILED;
1667
1668                 e1000_reset(adapter);
1669                 /* make sure the phy is powered up */
1670                 e1000_power_up_phy(adapter);
1671                 if (e1000_loopback_test(adapter, &data[3]))
1672                         eth_test->flags |= ETH_TEST_FL_FAILED;
1673
1674                 /* restore speed, duplex, autoneg settings */
1675                 adapter->hw.autoneg_advertised = autoneg_advertised;
1676                 adapter->hw.forced_speed_duplex = forced_speed_duplex;
1677                 adapter->hw.autoneg = autoneg;
1678
1679                 e1000_reset(adapter);
1680                 clear_bit(__E1000_TESTING, &adapter->flags);
1681                 if (if_running)
1682                         dev_open(netdev);
1683         } else {
1684                 DPRINTK(HW, INFO, "online testing starting\n");
1685                 /* Online tests */
1686                 if (e1000_link_test(adapter, &data[4]))
1687                         eth_test->flags |= ETH_TEST_FL_FAILED;
1688
1689                 /* Online tests aren't run; pass by default */
1690                 data[0] = 0;
1691                 data[1] = 0;
1692                 data[2] = 0;
1693                 data[3] = 0;
1694
1695                 clear_bit(__E1000_TESTING, &adapter->flags);
1696         }
1697         msleep_interruptible(4 * 1000);
1698 }
1699
1700 static int e1000_wol_exclusion(struct e1000_adapter *adapter, struct ethtool_wolinfo *wol)
1701 {
1702         struct e1000_hw *hw = &adapter->hw;
1703         int retval = 1; /* fail by default */
1704
1705         switch (hw->device_id) {
1706         case E1000_DEV_ID_82542:
1707         case E1000_DEV_ID_82543GC_FIBER:
1708         case E1000_DEV_ID_82543GC_COPPER:
1709         case E1000_DEV_ID_82544EI_FIBER:
1710         case E1000_DEV_ID_82546EB_QUAD_COPPER:
1711         case E1000_DEV_ID_82545EM_FIBER:
1712         case E1000_DEV_ID_82545EM_COPPER:
1713         case E1000_DEV_ID_82546GB_QUAD_COPPER:
1714         case E1000_DEV_ID_82546GB_PCIE:
1715                 /* these don't support WoL at all */
1716                 wol->supported = 0;
1717                 break;
1718         case E1000_DEV_ID_82546EB_FIBER:
1719         case E1000_DEV_ID_82546GB_FIBER:
1720         case E1000_DEV_ID_82571EB_FIBER:
1721         case E1000_DEV_ID_82571EB_SERDES:
1722         case E1000_DEV_ID_82571EB_COPPER:
1723                 /* Wake events not supported on port B */
1724                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) {
1725                         wol->supported = 0;
1726                         break;
1727                 }
1728                 /* return success for non excluded adapter ports */
1729                 retval = 0;
1730                 break;
1731         case E1000_DEV_ID_82571EB_QUAD_COPPER:
1732         case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
1733         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1734                 /* quad port adapters only support WoL on port A */
1735                 if (!adapter->quad_port_a) {
1736                         wol->supported = 0;
1737                         break;
1738                 }
1739                 /* return success for non excluded adapter ports */
1740                 retval = 0;
1741                 break;
1742         default:
1743                 /* dual port cards only support WoL on port A from now on
1744                  * unless it was enabled in the eeprom for port B
1745                  * so exclude FUNC_1 ports from having WoL enabled */
1746                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1 &&
1747                     !adapter->eeprom_wol) {
1748                         wol->supported = 0;
1749                         break;
1750                 }
1751
1752                 retval = 0;
1753         }
1754
1755         return retval;
1756 }
1757
1758 static void
1759 e1000_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1760 {
1761         struct e1000_adapter *adapter = netdev_priv(netdev);
1762
1763         wol->supported = WAKE_UCAST | WAKE_MCAST |
1764                          WAKE_BCAST | WAKE_MAGIC;
1765         wol->wolopts = 0;
1766
1767         /* this function will set ->supported = 0 and return 1 if wol is not
1768          * supported by this hardware */
1769         if (e1000_wol_exclusion(adapter, wol))
1770                 return;
1771
1772         /* apply any specific unsupported masks here */
1773         switch (adapter->hw.device_id) {
1774         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1775                 /* KSP3 does not suppport UCAST wake-ups */
1776                 wol->supported &= ~WAKE_UCAST;
1777
1778                 if (adapter->wol & E1000_WUFC_EX)
1779                         DPRINTK(DRV, ERR, "Interface does not support "
1780                         "directed (unicast) frame wake-up packets\n");
1781                 break;
1782         default:
1783                 break;
1784         }
1785
1786         if (adapter->wol & E1000_WUFC_EX)
1787                 wol->wolopts |= WAKE_UCAST;
1788         if (adapter->wol & E1000_WUFC_MC)
1789                 wol->wolopts |= WAKE_MCAST;
1790         if (adapter->wol & E1000_WUFC_BC)
1791                 wol->wolopts |= WAKE_BCAST;
1792         if (adapter->wol & E1000_WUFC_MAG)
1793                 wol->wolopts |= WAKE_MAGIC;
1794
1795         return;
1796 }
1797
1798 static int
1799 e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1800 {
1801         struct e1000_adapter *adapter = netdev_priv(netdev);
1802         struct e1000_hw *hw = &adapter->hw;
1803
1804         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
1805                 return -EOPNOTSUPP;
1806
1807         if (e1000_wol_exclusion(adapter, wol))
1808                 return wol->wolopts ? -EOPNOTSUPP : 0;
1809
1810         switch (hw->device_id) {
1811         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1812                 if (wol->wolopts & WAKE_UCAST) {
1813                         DPRINTK(DRV, ERR, "Interface does not support "
1814                         "directed (unicast) frame wake-up packets\n");
1815                         return -EOPNOTSUPP;
1816                 }
1817                 break;
1818         default:
1819                 break;
1820         }
1821
1822         /* these settings will always override what we currently have */
1823         adapter->wol = 0;
1824
1825         if (wol->wolopts & WAKE_UCAST)
1826                 adapter->wol |= E1000_WUFC_EX;
1827         if (wol->wolopts & WAKE_MCAST)
1828                 adapter->wol |= E1000_WUFC_MC;
1829         if (wol->wolopts & WAKE_BCAST)
1830                 adapter->wol |= E1000_WUFC_BC;
1831         if (wol->wolopts & WAKE_MAGIC)
1832                 adapter->wol |= E1000_WUFC_MAG;
1833
1834         return 0;
1835 }
1836
1837 /* toggle LED 4 times per second = 2 "blinks" per second */
1838 #define E1000_ID_INTERVAL       (HZ/4)
1839
1840 /* bit defines for adapter->led_status */
1841 #define E1000_LED_ON            0
1842
1843 static void
1844 e1000_led_blink_callback(unsigned long data)
1845 {
1846         struct e1000_adapter *adapter = (struct e1000_adapter *) data;
1847
1848         if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
1849                 e1000_led_off(&adapter->hw);
1850         else
1851                 e1000_led_on(&adapter->hw);
1852
1853         mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
1854 }
1855
1856 static int
1857 e1000_phys_id(struct net_device *netdev, uint32_t data)
1858 {
1859         struct e1000_adapter *adapter = netdev_priv(netdev);
1860
1861         if (!data || data > (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ))
1862                 data = (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ);
1863
1864         if (adapter->hw.mac_type < e1000_82571) {
1865                 if (!adapter->blink_timer.function) {
1866                         init_timer(&adapter->blink_timer);
1867                         adapter->blink_timer.function = e1000_led_blink_callback;
1868                         adapter->blink_timer.data = (unsigned long) adapter;
1869                 }
1870                 e1000_setup_led(&adapter->hw);
1871                 mod_timer(&adapter->blink_timer, jiffies);
1872                 msleep_interruptible(data * 1000);
1873                 del_timer_sync(&adapter->blink_timer);
1874         } else if (adapter->hw.phy_type == e1000_phy_ife) {
1875                 if (!adapter->blink_timer.function) {
1876                         init_timer(&adapter->blink_timer);
1877                         adapter->blink_timer.function = e1000_led_blink_callback;
1878                         adapter->blink_timer.data = (unsigned long) adapter;
1879                 }
1880                 mod_timer(&adapter->blink_timer, jiffies);
1881                 msleep_interruptible(data * 1000);
1882                 del_timer_sync(&adapter->blink_timer);
1883                 e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0);
1884         } else {
1885                 e1000_blink_led_start(&adapter->hw);
1886                 msleep_interruptible(data * 1000);
1887         }
1888
1889         e1000_led_off(&adapter->hw);
1890         clear_bit(E1000_LED_ON, &adapter->led_status);
1891         e1000_cleanup_led(&adapter->hw);
1892
1893         return 0;
1894 }
1895
1896 static int
1897 e1000_nway_reset(struct net_device *netdev)
1898 {
1899         struct e1000_adapter *adapter = netdev_priv(netdev);
1900         if (netif_running(netdev))
1901                 e1000_reinit_locked(adapter);
1902         return 0;
1903 }
1904
1905 static int
1906 e1000_get_stats_count(struct net_device *netdev)
1907 {
1908         return E1000_STATS_LEN;
1909 }
1910
1911 static void
1912 e1000_get_ethtool_stats(struct net_device *netdev,
1913                 struct ethtool_stats *stats, uint64_t *data)
1914 {
1915         struct e1000_adapter *adapter = netdev_priv(netdev);
1916         int i;
1917
1918         e1000_update_stats(adapter);
1919         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1920                 char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
1921                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1922                         sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
1923         }
1924 /*      BUG_ON(i != E1000_STATS_LEN); */
1925 }
1926
1927 static void
1928 e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
1929 {
1930         uint8_t *p = data;
1931         int i;
1932
1933         switch (stringset) {
1934         case ETH_SS_TEST:
1935                 memcpy(data, *e1000_gstrings_test,
1936                         E1000_TEST_LEN*ETH_GSTRING_LEN);
1937                 break;
1938         case ETH_SS_STATS:
1939                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1940                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1941                                ETH_GSTRING_LEN);
1942                         p += ETH_GSTRING_LEN;
1943                 }
1944 /*              BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
1945                 break;
1946         }
1947 }
1948
1949 static const struct ethtool_ops e1000_ethtool_ops = {
1950         .get_settings           = e1000_get_settings,
1951         .set_settings           = e1000_set_settings,
1952         .get_drvinfo            = e1000_get_drvinfo,
1953         .get_regs_len           = e1000_get_regs_len,
1954         .get_regs               = e1000_get_regs,
1955         .get_wol                = e1000_get_wol,
1956         .set_wol                = e1000_set_wol,
1957         .get_msglevel           = e1000_get_msglevel,
1958         .set_msglevel           = e1000_set_msglevel,
1959         .nway_reset             = e1000_nway_reset,
1960         .get_link               = ethtool_op_get_link,
1961         .get_eeprom_len         = e1000_get_eeprom_len,
1962         .get_eeprom             = e1000_get_eeprom,
1963         .set_eeprom             = e1000_set_eeprom,
1964         .get_ringparam          = e1000_get_ringparam,
1965         .set_ringparam          = e1000_set_ringparam,
1966         .get_pauseparam         = e1000_get_pauseparam,
1967         .set_pauseparam         = e1000_set_pauseparam,
1968         .get_rx_csum            = e1000_get_rx_csum,
1969         .set_rx_csum            = e1000_set_rx_csum,
1970         .get_tx_csum            = e1000_get_tx_csum,
1971         .set_tx_csum            = e1000_set_tx_csum,
1972         .get_sg                 = ethtool_op_get_sg,
1973         .set_sg                 = ethtool_op_set_sg,
1974 #ifdef NETIF_F_TSO
1975         .get_tso                = ethtool_op_get_tso,
1976         .set_tso                = e1000_set_tso,
1977 #endif
1978         .self_test_count        = e1000_diag_test_count,
1979         .self_test              = e1000_diag_test,
1980         .get_strings            = e1000_get_strings,
1981         .phys_id                = e1000_phys_id,
1982         .get_stats_count        = e1000_get_stats_count,
1983         .get_ethtool_stats      = e1000_get_ethtool_stats,
1984         .get_perm_addr          = ethtool_op_get_perm_addr,
1985 };
1986
1987 void e1000_set_ethtool_ops(struct net_device *netdev)
1988 {
1989         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
1990 }