drivers/net/e1000/e1000_ethtool.c

   1 /*******************************************************************************
   2
   3
   4   Copyright(c) 1999 - 2006 Intel Corporation. All rights reserved.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU General Public License as published by the Free
   8   Software Foundation; either version 2 of the License, or (at your option)
   9   any later version.
  10
  11   This program is distributed in the hope that it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14   more details.
  15
  16   You should have received a copy of the GNU General Public License along with
  17   this program; if not, write to the Free Software Foundation, Inc., 59
  18   Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20   The full GNU General Public License is included in this distribution in the
  21   file called LICENSE.
  22
  23   Contact Information:
  24   Linux NICS <linux.nics@intel.com>
  25   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  26   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27
  28 *******************************************************************************/
  29
  30 /* ethtool support for e1000 */
  31
  32 #include "e1000.h"
  33
  34 #include <asm/uaccess.h>
  35
  36 struct e1000_stats {
  37         char stat_string[ETH_GSTRING_LEN];
  38         int sizeof_stat;
  39         int stat_offset;
  40 };
  41
  42 #define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \
  43                       offsetof(struct e1000_adapter, m)
  44 static const struct e1000_stats e1000_gstrings_stats[] = {
  45         { "rx_packets", E1000_STAT(net_stats.rx_packets) },
  46         { "tx_packets", E1000_STAT(net_stats.tx_packets) },
  47         { "rx_bytes", E1000_STAT(net_stats.rx_bytes) },
  48         { "tx_bytes", E1000_STAT(net_stats.tx_bytes) },
  49         { "rx_errors", E1000_STAT(net_stats.rx_errors) },
  50         { "tx_errors", E1000_STAT(net_stats.tx_errors) },
  51         { "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
  52         { "multicast", E1000_STAT(net_stats.multicast) },
  53         { "collisions", E1000_STAT(net_stats.collisions) },
  54         { "rx_length_errors", E1000_STAT(net_stats.rx_length_errors) },
  55         { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
  56         { "rx_crc_errors", E1000_STAT(net_stats.rx_crc_errors) },
  57         { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
  58         { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
  59         { "rx_missed_errors", E1000_STAT(net_stats.rx_missed_errors) },
  60         { "tx_aborted_errors", E1000_STAT(net_stats.tx_aborted_errors) },
  61         { "tx_carrier_errors", E1000_STAT(net_stats.tx_carrier_errors) },
  62         { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
  63         { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
  64         { "tx_window_errors", E1000_STAT(net_stats.tx_window_errors) },
  65         { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
  66         { "tx_deferred_ok", E1000_STAT(stats.dc) },
  67         { "tx_single_coll_ok", E1000_STAT(stats.scc) },
  68         { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
  69         { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
  70         { "rx_long_length_errors", E1000_STAT(stats.roc) },
  71         { "rx_short_length_errors", E1000_STAT(stats.ruc) },
  72         { "rx_align_errors", E1000_STAT(stats.algnerrc) },
  73         { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
  74         { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
  75         { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
  76         { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
  77         { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
  78         { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
  79         { "rx_long_byte_count", E1000_STAT(stats.gorcl) },
  80         { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
  81         { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
  82         { "rx_header_split", E1000_STAT(rx_hdr_split) },
  83         { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
  84 };
  85
  86 #define E1000_QUEUE_STATS_LEN 0
  87 #define E1000_GLOBAL_STATS_LEN  \
  88         sizeof(e1000_gstrings_stats) / sizeof(struct e1000_stats)
  89 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)
  90 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
  91         "Register test  (offline)", "Eeprom test    (offline)",
  92         "Interrupt test (offline)", "Loopback test  (offline)",
  93         "Link test   (on/offline)"
  94 };
  95 #define E1000_TEST_LEN sizeof(e1000_gstrings_test) / ETH_GSTRING_LEN
  96
  97 static int
  98 e1000_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
  99 {
 100         struct e1000_adapter *adapter = netdev_priv(netdev);
 101         struct e1000_hw *hw = &adapter->hw;
 102
 103         if (hw->media_type == e1000_media_type_copper) {
 104
 105                 ecmd->supported = (SUPPORTED_10baseT_Half |
 106                                    SUPPORTED_10baseT_Full |
 107                                    SUPPORTED_100baseT_Half |
 108                                    SUPPORTED_100baseT_Full |
 109                                    SUPPORTED_1000baseT_Full|
 110                                    SUPPORTED_Autoneg |
 111                                    SUPPORTED_TP);
 112                 if (hw->phy_type == e1000_phy_ife)
 113                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 114                 ecmd->advertising = ADVERTISED_TP;
 115
 116                 if (hw->autoneg == 1) {
 117                         ecmd->advertising |= ADVERTISED_Autoneg;
 118
 119                         /* the e1000 autoneg seems to match ethtool nicely */
 120
 121                         ecmd->advertising |= hw->autoneg_advertised;
 122                 }
 123
 124                 ecmd->port = PORT_TP;
 125                 ecmd->phy_address = hw->phy_addr;
 126
 127                 if (hw->mac_type == e1000_82543)
 128                         ecmd->transceiver = XCVR_EXTERNAL;
 129                 else
 130                         ecmd->transceiver = XCVR_INTERNAL;
 131
 132         } else {
 133                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 134                                      SUPPORTED_FIBRE |
 135                                      SUPPORTED_Autoneg);
 136
 137                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 138                                      ADVERTISED_FIBRE |
 139                                      ADVERTISED_Autoneg);
 140
 141                 ecmd->port = PORT_FIBRE;
 142
 143                 if (hw->mac_type >= e1000_82545)
 144                         ecmd->transceiver = XCVR_INTERNAL;
 145                 else
 146                         ecmd->transceiver = XCVR_EXTERNAL;
 147         }
 148
 149         if (netif_carrier_ok(adapter->netdev)) {
 150
 151                 e1000_get_speed_and_duplex(hw, &adapter->link_speed,
 152                                                    &adapter->link_duplex);
 153                 ecmd->speed = adapter->link_speed;
 154
 155                 /* unfortunatly FULL_DUPLEX != DUPLEX_FULL
 156                  *          and HALF_DUPLEX != DUPLEX_HALF */
 157
 158                 if (adapter->link_duplex == FULL_DUPLEX)
 159                         ecmd->duplex = DUPLEX_FULL;
 160                 else
 161                         ecmd->duplex = DUPLEX_HALF;
 162         } else {
 163                 ecmd->speed = -1;
 164                 ecmd->duplex = -1;
 165         }
 166
 167         ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
 168                          hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 169         return 0;
 170 }
 171
 172 static int
 173 e1000_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 174 {
 175         struct e1000_adapter *adapter = netdev_priv(netdev);
 176         struct e1000_hw *hw = &adapter->hw;
 177
 178         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 179          * cannot be changed */
 180         if (e1000_check_phy_reset_block(hw)) {
 181                 DPRINTK(DRV, ERR, "Cannot change link characteristics "
 182                         "when SoL/IDER is active.\n");
 183                 return -EINVAL;
 184         }
 185
 186         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 187                 msleep(1);
 188
 189         if (ecmd->autoneg == AUTONEG_ENABLE) {
 190                 hw->autoneg = 1;
 191                 if (hw->media_type == e1000_media_type_fiber)
 192                         hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
 193                                      ADVERTISED_FIBRE |
 194                                      ADVERTISED_Autoneg;
 195                 else
 196                         hw->autoneg_advertised = ADVERTISED_10baseT_Half |
 197                                                   ADVERTISED_10baseT_Full |
 198                                                   ADVERTISED_100baseT_Half |
 199                                                   ADVERTISED_100baseT_Full |
 200                                                   ADVERTISED_1000baseT_Full|
 201                                                   ADVERTISED_Autoneg |
 202                                                   ADVERTISED_TP;
 203                 ecmd->advertising = hw->autoneg_advertised;
 204         } else
 205                 if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
 206                         clear_bit(__E1000_RESETTING, &adapter->flags);
 207                         return -EINVAL;
 208                 }
 209
 210         /* reset the link */
 211
 212         if (netif_running(adapter->netdev)) {
 213                 e1000_down(adapter);
 214                 e1000_up(adapter);
 215         } else
 216                 e1000_reset(adapter);
 217
 218         clear_bit(__E1000_RESETTING, &adapter->flags);
 219         return 0;
 220 }
 221
 222 static void
 223 e1000_get_pauseparam(struct net_device *netdev,
 224                      struct ethtool_pauseparam *pause)
 225 {
 226         struct e1000_adapter *adapter = netdev_priv(netdev);
 227         struct e1000_hw *hw = &adapter->hw;
 228
 229         pause->autoneg =
 230                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 231
 232         if (hw->fc == e1000_fc_rx_pause)
 233                 pause->rx_pause = 1;
 234         else if (hw->fc == e1000_fc_tx_pause)
 235                 pause->tx_pause = 1;
 236         else if (hw->fc == e1000_fc_full) {
 237                 pause->rx_pause = 1;
 238                 pause->tx_pause = 1;
 239         }
 240 }
 241
 242 static int
 243 e1000_set_pauseparam(struct net_device *netdev,
 244                      struct ethtool_pauseparam *pause)
 245 {
 246         struct e1000_adapter *adapter = netdev_priv(netdev);
 247         struct e1000_hw *hw = &adapter->hw;
 248         int retval = 0;
 249
 250         adapter->fc_autoneg = pause->autoneg;
 251
 252         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 253                 msleep(1);
 254
 255         if (pause->rx_pause && pause->tx_pause)
 256                 hw->fc = e1000_fc_full;
 257         else if (pause->rx_pause && !pause->tx_pause)
 258                 hw->fc = e1000_fc_rx_pause;
 259         else if (!pause->rx_pause && pause->tx_pause)
 260                 hw->fc = e1000_fc_tx_pause;
 261         else if (!pause->rx_pause && !pause->tx_pause)
 262                 hw->fc = e1000_fc_none;
 263
 264         hw->original_fc = hw->fc;
 265
 266         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 267                 if (netif_running(adapter->netdev)) {
 268                         e1000_down(adapter);
 269                         e1000_up(adapter);
 270                 } else
 271                         e1000_reset(adapter);
 272         } else
 273                 retval = ((hw->media_type == e1000_media_type_fiber) ?
 274                            e1000_setup_link(hw) : e1000_force_mac_fc(hw));
 275
 276         clear_bit(__E1000_RESETTING, &adapter->flags);
 277         return retval;
 278 }
 279
 280 static uint32_t
 281 e1000_get_rx_csum(struct net_device *netdev)
 282 {
 283         struct e1000_adapter *adapter = netdev_priv(netdev);
 284         return adapter->rx_csum;
 285 }
 286
 287 static int
 288 e1000_set_rx_csum(struct net_device *netdev, uint32_t data)
 289 {
 290         struct e1000_adapter *adapter = netdev_priv(netdev);
 291         adapter->rx_csum = data;
 292
 293         if (netif_running(netdev))
 294                 e1000_reinit_locked(adapter);
 295         else
 296                 e1000_reset(adapter);
 297         return 0;
 298 }
 299
 300 static uint32_t
 301 e1000_get_tx_csum(struct net_device *netdev)
 302 {
 303         return (netdev->features & NETIF_F_HW_CSUM) != 0;
 304 }
 305
 306 static int
 307 e1000_set_tx_csum(struct net_device *netdev, uint32_t data)
 308 {
 309         struct e1000_adapter *adapter = netdev_priv(netdev);
 310
 311         if (adapter->hw.mac_type < e1000_82543) {
 312                 if (!data)
 313                         return -EINVAL;
 314                 return 0;
 315         }
 316
 317         if (data)
 318                 netdev->features |= NETIF_F_HW_CSUM;
 319         else
 320                 netdev->features &= ~NETIF_F_HW_CSUM;
 321
 322         return 0;
 323 }
 324
 325 #ifdef NETIF_F_TSO
 326 static int
 327 e1000_set_tso(struct net_device *netdev, uint32_t data)
 328 {
 329         struct e1000_adapter *adapter = netdev_priv(netdev);
 330         if ((adapter->hw.mac_type < e1000_82544) ||
 331             (adapter->hw.mac_type == e1000_82547))
 332                 return data ? -EINVAL : 0;
 333
 334         if (data)
 335                 netdev->features |= NETIF_F_TSO;
 336         else
 337                 netdev->features &= ~NETIF_F_TSO;
 338
 339         DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
 340         adapter->tso_force = TRUE;
 341         return 0;
 342 }
 343 #endif /* NETIF_F_TSO */
 344
 345 static uint32_t
 346 e1000_get_msglevel(struct net_device *netdev)
 347 {
 348         struct e1000_adapter *adapter = netdev_priv(netdev);
 349         return adapter->msg_enable;
 350 }
 351
 352 static void
 353 e1000_set_msglevel(struct net_device *netdev, uint32_t data)
 354 {
 355         struct e1000_adapter *adapter = netdev_priv(netdev);
 356         adapter->msg_enable = data;
 357 }
 358
 359 static int
 360 e1000_get_regs_len(struct net_device *netdev)
 361 {
 362 #define E1000_REGS_LEN 32
 363         return E1000_REGS_LEN * sizeof(uint32_t);
 364 }
 365
 366 static void
 367 e1000_get_regs(struct net_device *netdev,
 368                struct ethtool_regs *regs, void *p)
 369 {
 370         struct e1000_adapter *adapter = netdev_priv(netdev);
 371         struct e1000_hw *hw = &adapter->hw;
 372         uint32_t *regs_buff = p;
 373         uint16_t phy_data;
 374
 375         memset(p, 0, E1000_REGS_LEN * sizeof(uint32_t));
 376
 377         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 378
 379         regs_buff[0]  = E1000_READ_REG(hw, CTRL);
 380         regs_buff[1]  = E1000_READ_REG(hw, STATUS);
 381
 382         regs_buff[2]  = E1000_READ_REG(hw, RCTL);
 383         regs_buff[3]  = E1000_READ_REG(hw, RDLEN);
 384         regs_buff[4]  = E1000_READ_REG(hw, RDH);
 385         regs_buff[5]  = E1000_READ_REG(hw, RDT);
 386         regs_buff[6]  = E1000_READ_REG(hw, RDTR);
 387
 388         regs_buff[7]  = E1000_READ_REG(hw, TCTL);
 389         regs_buff[8]  = E1000_READ_REG(hw, TDLEN);
 390         regs_buff[9]  = E1000_READ_REG(hw, TDH);
 391         regs_buff[10] = E1000_READ_REG(hw, TDT);
 392         regs_buff[11] = E1000_READ_REG(hw, TIDV);
 393
 394         regs_buff[12] = adapter->hw.phy_type;  /* PHY type (IGP=1, M88=0) */
 395         if (hw->phy_type == e1000_phy_igp) {
 396                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 397                                     IGP01E1000_PHY_AGC_A);
 398                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
 399                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 400                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 401                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 402                                     IGP01E1000_PHY_AGC_B);
 403                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
 404                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 405                 regs_buff[14] = (uint32_t)phy_data; /* cable length */
 406                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 407                                     IGP01E1000_PHY_AGC_C);
 408                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
 409                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 410                 regs_buff[15] = (uint32_t)phy_data; /* cable length */
 411                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 412                                     IGP01E1000_PHY_AGC_D);
 413                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
 414                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 415                 regs_buff[16] = (uint32_t)phy_data; /* cable length */
 416                 regs_buff[17] = 0; /* extended 10bt distance (not needed) */
 417                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 418                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
 419                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 420                 regs_buff[18] = (uint32_t)phy_data; /* cable polarity */
 421                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 422                                     IGP01E1000_PHY_PCS_INIT_REG);
 423                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
 424                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 425                 regs_buff[19] = (uint32_t)phy_data; /* cable polarity */
 426                 regs_buff[20] = 0; /* polarity correction enabled (always) */
 427                 regs_buff[22] = 0; /* phy receive errors (unavailable) */
 428                 regs_buff[23] = regs_buff[18]; /* mdix mode */
 429                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 430         } else {
 431                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 432                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 433                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 434                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 435                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 436                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 437                 regs_buff[17] = (uint32_t)phy_data; /* extended 10bt distance */
 438                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 439                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 440                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 441                 /* phy receive errors */
 442                 regs_buff[22] = adapter->phy_stats.receive_errors;
 443                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 444         }
 445         regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
 446         e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
 447         regs_buff[24] = (uint32_t)phy_data;  /* phy local receiver status */
 448         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 449         if (hw->mac_type >= e1000_82540 &&
 450            hw->media_type == e1000_media_type_copper) {
 451                 regs_buff[26] = E1000_READ_REG(hw, MANC);
 452         }
 453 }
 454
 455 static int
 456 e1000_get_eeprom_len(struct net_device *netdev)
 457 {
 458         struct e1000_adapter *adapter = netdev_priv(netdev);
 459         return adapter->hw.eeprom.word_size * 2;
 460 }
 461
 462 static int
 463 e1000_get_eeprom(struct net_device *netdev,
 464                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 465 {
 466         struct e1000_adapter *adapter = netdev_priv(netdev);
 467         struct e1000_hw *hw = &adapter->hw;
 468         uint16_t *eeprom_buff;
 469         int first_word, last_word;
 470         int ret_val = 0;
 471         uint16_t i;
 472
 473         if (eeprom->len == 0)
 474                 return -EINVAL;
 475
 476         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 477
 478         first_word = eeprom->offset >> 1;
 479         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 480
 481         eeprom_buff = kmalloc(sizeof(uint16_t) *
 482                         (last_word - first_word + 1), GFP_KERNEL);
 483         if (!eeprom_buff)
 484                 return -ENOMEM;
 485
 486         if (hw->eeprom.type == e1000_eeprom_spi)
 487                 ret_val = e1000_read_eeprom(hw, first_word,
 488                                             last_word - first_word + 1,
 489                                             eeprom_buff);
 490         else {
 491                 for (i = 0; i < last_word - first_word + 1; i++)
 492                         if ((ret_val = e1000_read_eeprom(hw, first_word + i, 1,
 493                                                         &eeprom_buff[i])))
 494                                 break;
 495         }
 496
 497         /* Device's eeprom is always little-endian, word addressable */
 498         for (i = 0; i < last_word - first_word + 1; i++)
 499                 le16_to_cpus(&eeprom_buff[i]);
 500
 501         memcpy(bytes, (uint8_t *)eeprom_buff + (eeprom->offset & 1),
 502                         eeprom->len);
 503         kfree(eeprom_buff);
 504
 505         return ret_val;
 506 }
 507
 508 static int
 509 e1000_set_eeprom(struct net_device *netdev,
 510                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 511 {
 512         struct e1000_adapter *adapter = netdev_priv(netdev);
 513         struct e1000_hw *hw = &adapter->hw;
 514         uint16_t *eeprom_buff;
 515         void *ptr;
 516         int max_len, first_word, last_word, ret_val = 0;
 517         uint16_t i;
 518
 519         if (eeprom->len == 0)
 520                 return -EOPNOTSUPP;
 521
 522         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 523                 return -EFAULT;
 524
 525         max_len = hw->eeprom.word_size * 2;
 526
 527         first_word = eeprom->offset >> 1;
 528         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 529         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 530         if (!eeprom_buff)
 531                 return -ENOMEM;
 532
 533         ptr = (void *)eeprom_buff;
 534
 535         if (eeprom->offset & 1) {
 536                 /* need read/modify/write of first changed EEPROM word */
 537                 /* only the second byte of the word is being modified */
 538                 ret_val = e1000_read_eeprom(hw, first_word, 1,
 539                                             &eeprom_buff[0]);
 540                 ptr++;
 541         }
 542         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 543                 /* need read/modify/write of last changed EEPROM word */
 544                 /* only the first byte of the word is being modified */
 545                 ret_val = e1000_read_eeprom(hw, last_word, 1,
 546                                   &eeprom_buff[last_word - first_word]);
 547         }
 548
 549         /* Device's eeprom is always little-endian, word addressable */
 550         for (i = 0; i < last_word - first_word + 1; i++)
 551                 le16_to_cpus(&eeprom_buff[i]);
 552
 553         memcpy(ptr, bytes, eeprom->len);
 554
 555         for (i = 0; i < last_word - first_word + 1; i++)
 556                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 557
 558         ret_val = e1000_write_eeprom(hw, first_word,
 559                                      last_word - first_word + 1, eeprom_buff);
 560
 561         /* Update the checksum over the first part of the EEPROM if needed
 562          * and flush shadow RAM for 82573 conrollers */
 563         if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) ||
 564                                 (hw->mac_type == e1000_82573)))
 565                 e1000_update_eeprom_checksum(hw);
 566
 567         kfree(eeprom_buff);
 568         return ret_val;
 569 }
 570
 571 static void
 572 e1000_get_drvinfo(struct net_device *netdev,
 573                        struct ethtool_drvinfo *drvinfo)
 574 {
 575         struct e1000_adapter *adapter = netdev_priv(netdev);
 576         char firmware_version[32];
 577         uint16_t eeprom_data;
 578
 579         strncpy(drvinfo->driver,  e1000_driver_name, 32);
 580         strncpy(drvinfo->version, e1000_driver_version, 32);
 581
 582         /* EEPROM image version # is reported as firmware version # for
 583          * 8257{1|2|3} controllers */
 584         e1000_read_eeprom(&adapter->hw, 5, 1, &eeprom_data);
 585         switch (adapter->hw.mac_type) {
 586         case e1000_82571:
 587         case e1000_82572:
 588         case e1000_82573:
 589         case e1000_80003es2lan:
 590         case e1000_ich8lan:
 591                 sprintf(firmware_version, "%d.%d-%d",
 592                         (eeprom_data & 0xF000) >> 12,
 593                         (eeprom_data & 0x0FF0) >> 4,
 594                         eeprom_data & 0x000F);
 595                 break;
 596         default:
 597                 sprintf(firmware_version, "N/A");
 598         }
 599
 600         strncpy(drvinfo->fw_version, firmware_version, 32);
 601         strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 602         drvinfo->n_stats = E1000_STATS_LEN;
 603         drvinfo->testinfo_len = E1000_TEST_LEN;
 604         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 605         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 606 }
 607
 608 static void
 609 e1000_get_ringparam(struct net_device *netdev,
 610                     struct ethtool_ringparam *ring)
 611 {
 612         struct e1000_adapter *adapter = netdev_priv(netdev);
 613         e1000_mac_type mac_type = adapter->hw.mac_type;
 614         struct e1000_tx_ring *txdr = adapter->tx_ring;
 615         struct e1000_rx_ring *rxdr = adapter->rx_ring;
 616
 617         ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
 618                 E1000_MAX_82544_RXD;
 619         ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
 620                 E1000_MAX_82544_TXD;
 621         ring->rx_mini_max_pending = 0;
 622         ring->rx_jumbo_max_pending = 0;
 623         ring->rx_pending = rxdr->count;
 624         ring->tx_pending = txdr->count;
 625         ring->rx_mini_pending = 0;
 626         ring->rx_jumbo_pending = 0;
 627 }
 628
 629 static int
 630 e1000_set_ringparam(struct net_device *netdev,
 631                     struct ethtool_ringparam *ring)
 632 {
 633         struct e1000_adapter *adapter = netdev_priv(netdev);
 634         e1000_mac_type mac_type = adapter->hw.mac_type;
 635         struct e1000_tx_ring *txdr, *tx_old, *tx_new;
 636         struct e1000_rx_ring *rxdr, *rx_old, *rx_new;
 637         int i, err, tx_ring_size, rx_ring_size;
 638
 639         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 640                 return -EINVAL;
 641
 642         tx_ring_size = sizeof(struct e1000_tx_ring) * adapter->num_tx_queues;
 643         rx_ring_size = sizeof(struct e1000_rx_ring) * adapter->num_rx_queues;
 644
 645         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 646                 msleep(1);
 647
 648         if (netif_running(adapter->netdev))
 649                 e1000_down(adapter);
 650
 651         tx_old = adapter->tx_ring;
 652         rx_old = adapter->rx_ring;
 653
 654         adapter->tx_ring = kmalloc(tx_ring_size, GFP_KERNEL);
 655         if (!adapter->tx_ring) {
 656                 err = -ENOMEM;
 657                 goto err_setup_rx;
 658         }
 659         memset(adapter->tx_ring, 0, tx_ring_size);
 660
 661         adapter->rx_ring = kmalloc(rx_ring_size, GFP_KERNEL);
 662         if (!adapter->rx_ring) {
 663                 kfree(adapter->tx_ring);
 664                 err = -ENOMEM;
 665                 goto err_setup_rx;
 666         }
 667         memset(adapter->rx_ring, 0, rx_ring_size);
 668
 669         txdr = adapter->tx_ring;
 670         rxdr = adapter->rx_ring;
 671
 672         rxdr->count = max(ring->rx_pending,(uint32_t)E1000_MIN_RXD);
 673         rxdr->count = min(rxdr->count,(uint32_t)(mac_type < e1000_82544 ?
 674                 E1000_MAX_RXD : E1000_MAX_82544_RXD));
 675         E1000_ROUNDUP(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 676
 677         txdr->count = max(ring->tx_pending,(uint32_t)E1000_MIN_TXD);
 678         txdr->count = min(txdr->count,(uint32_t)(mac_type < e1000_82544 ?
 679                 E1000_MAX_TXD : E1000_MAX_82544_TXD));
 680         E1000_ROUNDUP(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 681
 682         for (i = 0; i < adapter->num_tx_queues; i++)
 683                 txdr[i].count = txdr->count;
 684         for (i = 0; i < adapter->num_rx_queues; i++)
 685                 rxdr[i].count = rxdr->count;
 686
 687         if (netif_running(adapter->netdev)) {
 688                 /* Try to get new resources before deleting old */
 689                 if ((err = e1000_setup_all_rx_resources(adapter)))
 690                         goto err_setup_rx;
 691                 if ((err = e1000_setup_all_tx_resources(adapter)))
 692                         goto err_setup_tx;
 693
 694                 /* save the new, restore the old in order to free it,
 695                  * then restore the new back again */
 696
 697                 rx_new = adapter->rx_ring;
 698                 tx_new = adapter->tx_ring;
 699                 adapter->rx_ring = rx_old;
 700                 adapter->tx_ring = tx_old;
 701                 e1000_free_all_rx_resources(adapter);
 702                 e1000_free_all_tx_resources(adapter);
 703                 kfree(tx_old);
 704                 kfree(rx_old);
 705                 adapter->rx_ring = rx_new;
 706                 adapter->tx_ring = tx_new;
 707                 if ((err = e1000_up(adapter)))
 708                         goto err_setup;
 709         }
 710
 711         clear_bit(__E1000_RESETTING, &adapter->flags);
 712         return 0;
 713 err_setup_tx:
 714         e1000_free_all_rx_resources(adapter);
 715 err_setup_rx:
 716         adapter->rx_ring = rx_old;
 717         adapter->tx_ring = tx_old;
 718         e1000_up(adapter);
 719 err_setup:
 720         clear_bit(__E1000_RESETTING, &adapter->flags);
 721         return err;
 722 }
 723
 724 #define REG_PATTERN_TEST(R, M, W)                                              \
 725 {                                                                              \
 726         uint32_t pat, value;                                                   \
 727         uint32_t test[] =                                                      \
 728                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};              \
 729         for (pat = 0; pat < sizeof(test)/sizeof(test[0]); pat++) {              \
 730                 E1000_WRITE_REG(&adapter->hw, R, (test[pat] & W));             \
 731                 value = E1000_READ_REG(&adapter->hw, R);                       \
 732                 if (value != (test[pat] & W & M)) {                             \
 733                         DPRINTK(DRV, ERR, "pattern test reg %04X failed: got " \
 734                                 "0x%08X expected 0x%08X\n",                    \
 735                                 E1000_##R, value, (test[pat] & W & M));        \
 736                         *data = (adapter->hw.mac_type < e1000_82543) ?         \
 737                                 E1000_82542_##R : E1000_##R;                   \
 738                         return 1;                                              \
 739                 }                                                              \
 740         }                                                                      \
 741 }
 742
 743 #define REG_SET_AND_CHECK(R, M, W)                                             \
 744 {                                                                              \
 745         uint32_t value;                                                        \
 746         E1000_WRITE_REG(&adapter->hw, R, W & M);                               \
 747         value = E1000_READ_REG(&adapter->hw, R);                               \
 748         if ((W & M) != (value & M)) {                                          \
 749                 DPRINTK(DRV, ERR, "set/check reg %04X test failed: got 0x%08X "\
 750                         "expected 0x%08X\n", E1000_##R, (value & M), (W & M)); \
 751                 *data = (adapter->hw.mac_type < e1000_82543) ?                 \
 752                         E1000_82542_##R : E1000_##R;                           \
 753                 return 1;                                                      \
 754         }                                                                      \
 755 }
 756
 757 static int
 758 e1000_reg_test(struct e1000_adapter *adapter, uint64_t *data)
 759 {
 760         uint32_t value, before, after;
 761         uint32_t i, toggle;
 762
 763         /* The status register is Read Only, so a write should fail.
 764          * Some bits that get toggled are ignored.
 765          */
 766         switch (adapter->hw.mac_type) {
 767         /* there are several bits on newer hardware that are r/w */
 768         case e1000_82571:
 769         case e1000_82572:
 770         case e1000_80003es2lan:
 771                 toggle = 0x7FFFF3FF;
 772                 break;
 773         case e1000_82573:
 774         case e1000_ich8lan:
 775                 toggle = 0x7FFFF033;
 776                 break;
 777         default:
 778                 toggle = 0xFFFFF833;
 779                 break;
 780         }
 781
 782         before = E1000_READ_REG(&adapter->hw, STATUS);
 783         value = (E1000_READ_REG(&adapter->hw, STATUS) & toggle);
 784         E1000_WRITE_REG(&adapter->hw, STATUS, toggle);
 785         after = E1000_READ_REG(&adapter->hw, STATUS) & toggle;
 786         if (value != after) {
 787                 DPRINTK(DRV, ERR, "failed STATUS register test got: "
 788                         "0x%08X expected: 0x%08X\n", after, value);
 789                 *data = 1;
 790                 return 1;
 791         }
 792         /* restore previous status */
 793         E1000_WRITE_REG(&adapter->hw, STATUS, before);
 794         if (adapter->hw.mac_type != e1000_ich8lan) {
 795                 REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 796                 REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
 797                 REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
 798                 REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
 799         }
 800         REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
 801         REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 802         REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
 803         REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
 804         REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
 805         REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
 806         REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
 807         REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 808         REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 809         REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
 810
 811         REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
 812         before = (adapter->hw.mac_type == e1000_ich8lan ?
 813                         0x06C3B33E : 0x06DFB3FE);
 814         REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
 815         REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
 816
 817         if (adapter->hw.mac_type >= e1000_82543) {
 818
 819                 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
 820                 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 821                 if (adapter->hw.mac_type != e1000_ich8lan)
 822                         REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
 823                 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 824                 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
 825                 value = (adapter->hw.mac_type == e1000_ich8lan ?
 826                                 E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES);
 827                 for (i = 0; i < value; i++) {
 828                         REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF,
 829                                          0xFFFFFFFF);
 830                 }
 831
 832         } else {
 833
 834                 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
 835                 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
 836                 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
 837                 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
 838
 839         }
 840
 841         value = (adapter->hw.mac_type == e1000_ich8lan ?
 842                         E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE);
 843         for (i = 0; i < value; i++)
 844                 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
 845
 846         *data = 0;
 847         return 0;
 848 }
 849
 850 static int
 851 e1000_eeprom_test(struct e1000_adapter *adapter, uint64_t *data)
 852 {
 853         uint16_t temp;
 854         uint16_t checksum = 0;
 855         uint16_t i;
 856
 857         *data = 0;
 858         /* Read and add up the contents of the EEPROM */
 859         for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
 860                 if ((e1000_read_eeprom(&adapter->hw, i, 1, &temp)) < 0) {
 861                         *data = 1;
 862                         break;
 863                 }
 864                 checksum += temp;
 865         }
 866
 867         /* If Checksum is not Correct return error else test passed */
 868         if ((checksum != (uint16_t) EEPROM_SUM) && !(*data))
 869                 *data = 2;
 870
 871         return *data;
 872 }
 873
 874 static irqreturn_t
 875 e1000_test_intr(int irq,
 876                 void *data,
 877                 struct pt_regs *regs)
 878 {
 879         struct net_device *netdev = (struct net_device *) data;
 880         struct e1000_adapter *adapter = netdev_priv(netdev);
 881
 882         adapter->test_icr |= E1000_READ_REG(&adapter->hw, ICR);
 883
 884         return IRQ_HANDLED;
 885 }
 886
 887 static int
 888 e1000_intr_test(struct e1000_adapter *adapter, uint64_t *data)
 889 {
 890         struct net_device *netdev = adapter->netdev;
 891         uint32_t mask, i=0, shared_int = TRUE;
 892         uint32_t irq = adapter->pdev->irq;
 893
 894         *data = 0;
 895
 896         /* NOTE: we don't test MSI interrupts here, yet */
 897         /* Hook up test interrupt handler just for this test */
 898         if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED,
 899                          netdev->name, netdev))
 900                 shared_int = FALSE;
 901         else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
 902                               netdev->name, netdev)) {
 903                 *data = 1;
 904                 return -1;
 905         }
 906         DPRINTK(HW, INFO, "testing %s interrupt\n",
 907                 (shared_int ? "shared" : "unshared"));
 908
 909         /* Disable all the interrupts */
 910         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 911         msec_delay(10);
 912
 913         /* Test each interrupt */
 914         for (; i < 10; i++) {
 915
 916                 if (adapter->hw.mac_type == e1000_ich8lan && i == 8)
 917                         continue;
 918                 /* Interrupt to test */
 919                 mask = 1 << i;
 920
 921                 if (!shared_int) {
 922                         /* Disable the interrupt to be reported in
 923                          * the cause register and then force the same
 924                          * interrupt and see if one gets posted.  If
 925                          * an interrupt was posted to the bus, the
 926                          * test failed.
 927                          */
 928                         adapter->test_icr = 0;
 929                         E1000_WRITE_REG(&adapter->hw, IMC, mask);
 930                         E1000_WRITE_REG(&adapter->hw, ICS, mask);
 931                         msec_delay(10);
 932
 933                         if (adapter->test_icr & mask) {
 934                                 *data = 3;
 935                                 break;
 936                         }
 937                 }
 938
 939                 /* Enable the interrupt to be reported in
 940                  * the cause register and then force the same
 941                  * interrupt and see if one gets posted.  If
 942                  * an interrupt was not posted to the bus, the
 943                  * test failed.
 944                  */
 945                 adapter->test_icr = 0;
 946                 E1000_WRITE_REG(&adapter->hw, IMS, mask);
 947                 E1000_WRITE_REG(&adapter->hw, ICS, mask);
 948                 msec_delay(10);
 949
 950                 if (!(adapter->test_icr & mask)) {
 951                         *data = 4;
 952                         break;
 953                 }
 954
 955                 if (!shared_int) {
 956                         /* Disable the other interrupts to be reported in
 957                          * the cause register and then force the other
 958                          * interrupts and see if any get posted.  If
 959                          * an interrupt was posted to the bus, the
 960                          * test failed.
 961                          */
 962                         adapter->test_icr = 0;
 963                         E1000_WRITE_REG(&adapter->hw, IMC, ~mask & 0x00007FFF);
 964                         E1000_WRITE_REG(&adapter->hw, ICS, ~mask & 0x00007FFF);
 965                         msec_delay(10);
 966
 967                         if (adapter->test_icr) {
 968                                 *data = 5;
 969                                 break;
 970                         }
 971                 }
 972         }
 973
 974         /* Disable all the interrupts */
 975         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 976         msec_delay(10);
 977
 978         /* Unhook test interrupt handler */
 979         free_irq(irq, netdev);
 980
 981         return *data;
 982 }
 983
 984 static void
 985 e1000_free_desc_rings(struct e1000_adapter *adapter)
 986 {
 987         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
 988         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
 989         struct pci_dev *pdev = adapter->pdev;
 990         int i;
 991
 992         if (txdr->desc && txdr->buffer_info) {
 993                 for (i = 0; i < txdr->count; i++) {
 994                         if (txdr->buffer_info[i].dma)
 995                                 pci_unmap_single(pdev, txdr->buffer_info[i].dma,
 996                                                  txdr->buffer_info[i].length,
 997                                                  PCI_DMA_TODEVICE);
 998                         if (txdr->buffer_info[i].skb)
 999                                 dev_kfree_skb(txdr->buffer_info[i].skb);
1000                 }
1001         }
1002
1003         if (rxdr->desc && rxdr->buffer_info) {
1004                 for (i = 0; i < rxdr->count; i++) {
1005                         if (rxdr->buffer_info[i].dma)
1006                                 pci_unmap_single(pdev, rxdr->buffer_info[i].dma,
1007                                                  rxdr->buffer_info[i].length,
1008                                                  PCI_DMA_FROMDEVICE);
1009                         if (rxdr->buffer_info[i].skb)
1010                                 dev_kfree_skb(rxdr->buffer_info[i].skb);
1011                 }
1012         }
1013
1014         if (txdr->desc) {
1015                 pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma);
1016                 txdr->desc = NULL;
1017         }
1018         if (rxdr->desc) {
1019                 pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma);
1020                 rxdr->desc = NULL;
1021         }
1022
1023         kfree(txdr->buffer_info);
1024         txdr->buffer_info = NULL;
1025         kfree(rxdr->buffer_info);
1026         rxdr->buffer_info = NULL;
1027
1028         return;
1029 }
1030
1031 static int
1032 e1000_setup_desc_rings(struct e1000_adapter *adapter)
1033 {
1034         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1035         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1036         struct pci_dev *pdev = adapter->pdev;
1037         uint32_t rctl;
1038         int size, i, ret_val;
1039
1040         /* Setup Tx descriptor ring and Tx buffers */
1041
1042         if (!txdr->count)
1043                 txdr->count = E1000_DEFAULT_TXD;
1044
1045         size = txdr->count * sizeof(struct e1000_buffer);
1046         if (!(txdr->buffer_info = kmalloc(size, GFP_KERNEL))) {
1047                 ret_val = 1;
1048                 goto err_nomem;
1049         }
1050         memset(txdr->buffer_info, 0, size);
1051
1052         txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
1053         E1000_ROUNDUP(txdr->size, 4096);
1054         if (!(txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma))) {
1055                 ret_val = 2;
1056                 goto err_nomem;
1057         }
1058         memset(txdr->desc, 0, txdr->size);
1059         txdr->next_to_use = txdr->next_to_clean = 0;
1060
1061         E1000_WRITE_REG(&adapter->hw, TDBAL,
1062                         ((uint64_t) txdr->dma & 0x00000000FFFFFFFF));
1063         E1000_WRITE_REG(&adapter->hw, TDBAH, ((uint64_t) txdr->dma >> 32));
1064         E1000_WRITE_REG(&adapter->hw, TDLEN,
1065                         txdr->count * sizeof(struct e1000_tx_desc));
1066         E1000_WRITE_REG(&adapter->hw, TDH, 0);
1067         E1000_WRITE_REG(&adapter->hw, TDT, 0);
1068         E1000_WRITE_REG(&adapter->hw, TCTL,
1069                         E1000_TCTL_PSP | E1000_TCTL_EN |
1070                         E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1071                         E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1072
1073         for (i = 0; i < txdr->count; i++) {
1074                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
1075                 struct sk_buff *skb;
1076                 unsigned int size = 1024;
1077
1078                 if (!(skb = alloc_skb(size, GFP_KERNEL))) {
1079                         ret_val = 3;
1080                         goto err_nomem;
1081                 }
1082                 skb_put(skb, size);
1083                 txdr->buffer_info[i].skb = skb;
1084                 txdr->buffer_info[i].length = skb->len;
1085                 txdr->buffer_info[i].dma =
1086                         pci_map_single(pdev, skb->data, skb->len,
1087                                        PCI_DMA_TODEVICE);
1088                 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);
1089                 tx_desc->lower.data = cpu_to_le32(skb->len);
1090                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1091                                                    E1000_TXD_CMD_IFCS |
1092                                                    E1000_TXD_CMD_RPS);
1093                 tx_desc->upper.data = 0;
1094         }
1095
1096         /* Setup Rx descriptor ring and Rx buffers */
1097
1098         if (!rxdr->count)
1099                 rxdr->count = E1000_DEFAULT_RXD;
1100
1101         size = rxdr->count * sizeof(struct e1000_buffer);
1102         if (!(rxdr->buffer_info = kmalloc(size, GFP_KERNEL))) {
1103                 ret_val = 4;
1104                 goto err_nomem;
1105         }
1106         memset(rxdr->buffer_info, 0, size);
1107
1108         rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
1109         if (!(rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma))) {
1110                 ret_val = 5;
1111                 goto err_nomem;
1112         }
1113         memset(rxdr->desc, 0, rxdr->size);
1114         rxdr->next_to_use = rxdr->next_to_clean = 0;
1115
1116         rctl = E1000_READ_REG(&adapter->hw, RCTL);
1117         E1000_WRITE_REG(&adapter->hw, RCTL, rctl & ~E1000_RCTL_EN);
1118         E1000_WRITE_REG(&adapter->hw, RDBAL,
1119                         ((uint64_t) rxdr->dma & 0xFFFFFFFF));
1120         E1000_WRITE_REG(&adapter->hw, RDBAH, ((uint64_t) rxdr->dma >> 32));
1121         E1000_WRITE_REG(&adapter->hw, RDLEN, rxdr->size);
1122         E1000_WRITE_REG(&adapter->hw, RDH, 0);
1123         E1000_WRITE_REG(&adapter->hw, RDT, 0);
1124         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1125                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1126                 (adapter->hw.mc_filter_type << E1000_RCTL_MO_SHIFT);
1127         E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
1128
1129         for (i = 0; i < rxdr->count; i++) {
1130                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
1131                 struct sk_buff *skb;
1132
1133                 if (!(skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN,
1134                                 GFP_KERNEL))) {
1135                         ret_val = 6;
1136                         goto err_nomem;
1137                 }
1138                 skb_reserve(skb, NET_IP_ALIGN);
1139                 rxdr->buffer_info[i].skb = skb;
1140                 rxdr->buffer_info[i].length = E1000_RXBUFFER_2048;
1141                 rxdr->buffer_info[i].dma =
1142                         pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048,
1143                                        PCI_DMA_FROMDEVICE);
1144                 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);
1145                 memset(skb->data, 0x00, skb->len);
1146         }
1147
1148         return 0;
1149
1150 err_nomem:
1151         e1000_free_desc_rings(adapter);
1152         return ret_val;
1153 }
1154
1155 static void
1156 e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1157 {
1158         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1159         e1000_write_phy_reg(&adapter->hw, 29, 0x001F);
1160         e1000_write_phy_reg(&adapter->hw, 30, 0x8FFC);
1161         e1000_write_phy_reg(&adapter->hw, 29, 0x001A);
1162         e1000_write_phy_reg(&adapter->hw, 30, 0x8FF0);
1163 }
1164
1165 static void
1166 e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
1167 {
1168         uint16_t phy_reg;
1169
1170         /* Because we reset the PHY above, we need to re-force TX_CLK in the
1171          * Extended PHY Specific Control Register to 25MHz clock.  This
1172          * value defaults back to a 2.5MHz clock when the PHY is reset.
1173          */
1174         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1175         phy_reg |= M88E1000_EPSCR_TX_CLK_25;
1176         e1000_write_phy_reg(&adapter->hw,
1177                 M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
1178
1179         /* In addition, because of the s/w reset above, we need to enable
1180          * CRS on TX.  This must be set for both full and half duplex
1181          * operation.
1182          */
1183         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1184         phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
1185         e1000_write_phy_reg(&adapter->hw,
1186                 M88E1000_PHY_SPEC_CTRL, phy_reg);
1187 }
1188
1189 static int
1190 e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
1191 {
1192         uint32_t ctrl_reg;
1193         uint16_t phy_reg;
1194
1195         /* Setup the Device Control Register for PHY loopback test. */
1196
1197         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1198         ctrl_reg |= (E1000_CTRL_ILOS |          /* Invert Loss-Of-Signal */
1199                      E1000_CTRL_FRCSPD |        /* Set the Force Speed Bit */
1200                      E1000_CTRL_FRCDPX |        /* Set the Force Duplex Bit */
1201                      E1000_CTRL_SPD_1000 |      /* Force Speed to 1000 */
1202                      E1000_CTRL_FD);            /* Force Duplex to FULL */
1203
1204         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1205
1206         /* Read the PHY Specific Control Register (0x10) */
1207         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1208
1209         /* Clear Auto-Crossover bits in PHY Specific Control Register
1210          * (bits 6:5).
1211          */
1212         phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
1213         e1000_write_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
1214
1215         /* Perform software reset on the PHY */
1216         e1000_phy_reset(&adapter->hw);
1217
1218         /* Have to setup TX_CLK and TX_CRS after software reset */
1219         e1000_phy_reset_clk_and_crs(adapter);
1220
1221         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8100);
1222
1223         /* Wait for reset to complete. */
1224         udelay(500);
1225
1226         /* Have to setup TX_CLK and TX_CRS after software reset */
1227         e1000_phy_reset_clk_and_crs(adapter);
1228
1229         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1230         e1000_phy_disable_receiver(adapter);
1231
1232         /* Set the loopback bit in the PHY control register. */
1233         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1234         phy_reg |= MII_CR_LOOPBACK;
1235         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1236
1237         /* Setup TX_CLK and TX_CRS one more time. */
1238         e1000_phy_reset_clk_and_crs(adapter);
1239
1240         /* Check Phy Configuration */
1241         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1242         if (phy_reg != 0x4100)
1243                  return 9;
1244
1245         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1246         if (phy_reg != 0x0070)
1247                 return 10;
1248
1249         e1000_read_phy_reg(&adapter->hw, 29, &phy_reg);
1250         if (phy_reg != 0x001A)
1251                 return 11;
1252
1253         return 0;
1254 }
1255
1256 static int
1257 e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1258 {
1259         uint32_t ctrl_reg = 0;
1260         uint32_t stat_reg = 0;
1261
1262         adapter->hw.autoneg = FALSE;
1263
1264         if (adapter->hw.phy_type == e1000_phy_m88) {
1265                 /* Auto-MDI/MDIX Off */
1266                 e1000_write_phy_reg(&adapter->hw,
1267                                     M88E1000_PHY_SPEC_CTRL, 0x0808);
1268                 /* reset to update Auto-MDI/MDIX */
1269                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x9140);
1270                 /* autoneg off */
1271                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8140);
1272         } else if (adapter->hw.phy_type == e1000_phy_gg82563)
1273                 e1000_write_phy_reg(&adapter->hw,
1274                                     GG82563_PHY_KMRN_MODE_CTRL,
1275                                     0x1CC);
1276
1277         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1278
1279         if (adapter->hw.phy_type == e1000_phy_ife) {
1280                 /* force 100, set loopback */
1281                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x6100);
1282
1283                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1284                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1285                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1286                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1287                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1288                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1289         } else {
1290                 /* force 1000, set loopback */
1291                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x4140);
1292
1293                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1294                 ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1295                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1296                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1297                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1298                              E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1299                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1300         }
1301
1302         if (adapter->hw.media_type == e1000_media_type_copper &&
1303            adapter->hw.phy_type == e1000_phy_m88)
1304                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1305         else {
1306                 /* Set the ILOS bit on the fiber Nic is half
1307                  * duplex link is detected. */
1308                 stat_reg = E1000_READ_REG(&adapter->hw, STATUS);
1309                 if ((stat_reg & E1000_STATUS_FD) == 0)
1310                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1311         }
1312
1313         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1314
1315         /* Disable the receiver on the PHY so when a cable is plugged in, the
1316          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1317          */
1318         if (adapter->hw.phy_type == e1000_phy_m88)
1319                 e1000_phy_disable_receiver(adapter);
1320
1321         udelay(500);
1322
1323         return 0;
1324 }
1325
1326 static int
1327 e1000_set_phy_loopback(struct e1000_adapter *adapter)
1328 {
1329         uint16_t phy_reg = 0;
1330         uint16_t count = 0;
1331
1332         switch (adapter->hw.mac_type) {
1333         case e1000_82543:
1334                 if (adapter->hw.media_type == e1000_media_type_copper) {
1335                         /* Attempt to setup Loopback mode on Non-integrated PHY.
1336                          * Some PHY registers get corrupted at random, so
1337                          * attempt this 10 times.
1338                          */
1339                         while (e1000_nonintegrated_phy_loopback(adapter) &&
1340                               count++ < 10);
1341                         if (count < 11)
1342                                 return 0;
1343                 }
1344                 break;
1345
1346         case e1000_82544:
1347         case e1000_82540:
1348         case e1000_82545:
1349         case e1000_82545_rev_3:
1350         case e1000_82546:
1351         case e1000_82546_rev_3:
1352         case e1000_82541:
1353         case e1000_82541_rev_2:
1354         case e1000_82547:
1355         case e1000_82547_rev_2:
1356         case e1000_82571:
1357         case e1000_82572:
1358         case e1000_82573:
1359         case e1000_80003es2lan:
1360         case e1000_ich8lan:
1361                 return e1000_integrated_phy_loopback(adapter);
1362                 break;
1363
1364         default:
1365                 /* Default PHY loopback work is to read the MII
1366                  * control register and assert bit 14 (loopback mode).
1367                  */
1368                 e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1369                 phy_reg |= MII_CR_LOOPBACK;
1370                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1371                 return 0;
1372                 break;
1373         }
1374
1375         return 8;
1376 }
1377
1378 static int
1379 e1000_setup_loopback_test(struct e1000_adapter *adapter)
1380 {
1381         struct e1000_hw *hw = &adapter->hw;
1382         uint32_t rctl;
1383
1384         if (hw->media_type == e1000_media_type_fiber ||
1385             hw->media_type == e1000_media_type_internal_serdes) {
1386                 switch (hw->mac_type) {
1387                 case e1000_82545:
1388                 case e1000_82546:
1389                 case e1000_82545_rev_3:
1390                 case e1000_82546_rev_3:
1391                         return e1000_set_phy_loopback(adapter);
1392                         break;
1393                 case e1000_82571:
1394                 case e1000_82572:
1395 #define E1000_SERDES_LB_ON 0x410
1396                         e1000_set_phy_loopback(adapter);
1397                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_ON);
1398                         msec_delay(10);
1399                         return 0;
1400                         break;
1401                 default:
1402                         rctl = E1000_READ_REG(hw, RCTL);
1403                         rctl |= E1000_RCTL_LBM_TCVR;
1404                         E1000_WRITE_REG(hw, RCTL, rctl);
1405                         return 0;
1406                 }
1407         } else if (hw->media_type == e1000_media_type_copper)
1408                 return e1000_set_phy_loopback(adapter);
1409
1410         return 7;
1411 }
1412
1413 static void
1414 e1000_loopback_cleanup(struct e1000_adapter *adapter)
1415 {
1416         struct e1000_hw *hw = &adapter->hw;
1417         uint32_t rctl;
1418         uint16_t phy_reg;
1419
1420         rctl = E1000_READ_REG(hw, RCTL);
1421         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1422         E1000_WRITE_REG(hw, RCTL, rctl);
1423
1424         switch (hw->mac_type) {
1425         case e1000_82571:
1426         case e1000_82572:
1427                 if (hw->media_type == e1000_media_type_fiber ||
1428                     hw->media_type == e1000_media_type_internal_serdes) {
1429 #define E1000_SERDES_LB_OFF 0x400
1430                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_OFF);
1431                         msec_delay(10);
1432                         break;
1433                 }
1434                 /* Fall Through */
1435         case e1000_82545:
1436         case e1000_82546:
1437         case e1000_82545_rev_3:
1438         case e1000_82546_rev_3:
1439         default:
1440                 hw->autoneg = TRUE;
1441                 if (hw->phy_type == e1000_phy_gg82563)
1442                         e1000_write_phy_reg(hw,
1443                                             GG82563_PHY_KMRN_MODE_CTRL,
1444                                             0x180);
1445                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1446                 if (phy_reg & MII_CR_LOOPBACK) {
1447                         phy_reg &= ~MII_CR_LOOPBACK;
1448                         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1449                         e1000_phy_reset(hw);
1450                 }
1451                 break;
1452         }
1453 }
1454
1455 static void
1456 e1000_create_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1457 {
1458         memset(skb->data, 0xFF, frame_size);
1459         frame_size &= ~1;
1460         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1461         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1462         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1463 }
1464
1465 static int
1466 e1000_check_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1467 {
1468         frame_size &= ~1;
1469         if (*(skb->data + 3) == 0xFF) {
1470                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1471                    (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
1472                         return 0;
1473                 }
1474         }
1475         return 13;
1476 }
1477
1478 static int
1479 e1000_run_loopback_test(struct e1000_adapter *adapter)
1480 {
1481         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1482         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1483         struct pci_dev *pdev = adapter->pdev;
1484         int i, j, k, l, lc, good_cnt, ret_val=0;
1485         unsigned long time;
1486
1487         E1000_WRITE_REG(&adapter->hw, RDT, rxdr->count - 1);
1488
1489         /* Calculate the loop count based on the largest descriptor ring
1490          * The idea is to wrap the largest ring a number of times using 64
1491          * send/receive pairs during each loop
1492          */
1493
1494         if (rxdr->count <= txdr->count)
1495                 lc = ((txdr->count / 64) * 2) + 1;
1496         else
1497                 lc = ((rxdr->count / 64) * 2) + 1;
1498
1499         k = l = 0;
1500         for (j = 0; j <= lc; j++) { /* loop count loop */
1501                 for (i = 0; i < 64; i++) { /* send the packets */
1502                         e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
1503                                         1024);
1504                         pci_dma_sync_single_for_device(pdev,
1505                                         txdr->buffer_info[k].dma,
1506                                         txdr->buffer_info[k].length,
1507                                         PCI_DMA_TODEVICE);
1508                         if (unlikely(++k == txdr->count)) k = 0;
1509                 }
1510                 E1000_WRITE_REG(&adapter->hw, TDT, k);
1511                 msec_delay(200);
1512                 time = jiffies; /* set the start time for the receive */
1513                 good_cnt = 0;
1514                 do { /* receive the sent packets */
1515                         pci_dma_sync_single_for_cpu(pdev,
1516                                         rxdr->buffer_info[l].dma,
1517                                         rxdr->buffer_info[l].length,
1518                                         PCI_DMA_FROMDEVICE);
1519
1520                         ret_val = e1000_check_lbtest_frame(
1521                                         rxdr->buffer_info[l].skb,
1522                                         1024);
1523                         if (!ret_val)
1524                                 good_cnt++;
1525                         if (unlikely(++l == rxdr->count)) l = 0;
1526                         /* time + 20 msecs (200 msecs on 2.4) is more than
1527                          * enough time to complete the receives, if it's
1528                          * exceeded, break and error off
1529                          */
1530                 } while (good_cnt < 64 && jiffies < (time + 20));
1531                 if (good_cnt != 64) {
1532                         ret_val = 13; /* ret_val is the same as mis-compare */
1533                         break;
1534                 }
1535                 if (jiffies >= (time + 2)) {
1536                         ret_val = 14; /* error code for time out error */
1537                         break;
1538                 }
1539         } /* end loop count loop */
1540         return ret_val;
1541 }
1542
1543 static int
1544 e1000_loopback_test(struct e1000_adapter *adapter, uint64_t *data)
1545 {
1546         /* PHY loopback cannot be performed if SoL/IDER
1547          * sessions are active */
1548         if (e1000_check_phy_reset_block(&adapter->hw)) {
1549                 DPRINTK(DRV, ERR, "Cannot do PHY loopback test "
1550                         "when SoL/IDER is active.\n");
1551                 *data = 0;
1552                 goto out;
1553         }
1554
1555         if ((*data = e1000_setup_desc_rings(adapter)))
1556                 goto out;
1557         if ((*data = e1000_setup_loopback_test(adapter)))
1558                 goto err_loopback;
1559         *data = e1000_run_loopback_test(adapter);
1560         e1000_loopback_cleanup(adapter);
1561
1562 err_loopback:
1563         e1000_free_desc_rings(adapter);
1564 out:
1565         return *data;
1566 }
1567
1568 static int
1569 e1000_link_test(struct e1000_adapter *adapter, uint64_t *data)
1570 {
1571         *data = 0;
1572         if (adapter->hw.media_type == e1000_media_type_internal_serdes) {
1573                 int i = 0;
1574                 adapter->hw.serdes_link_down = TRUE;
1575
1576                 /* On some blade server designs, link establishment
1577                  * could take as long as 2-3 minutes */
1578                 do {
1579                         e1000_check_for_link(&adapter->hw);
1580                         if (adapter->hw.serdes_link_down == FALSE)
1581                                 return *data;
1582                         msec_delay(20);
1583                 } while (i++ < 3750);
1584
1585                 *data = 1;
1586         } else {
1587                 e1000_check_for_link(&adapter->hw);
1588                 if (adapter->hw.autoneg)  /* if auto_neg is set wait for it */
1589                         msec_delay(4000);
1590
1591                 if (!(E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU)) {
1592                         *data = 1;
1593                 }
1594         }
1595         return *data;
1596 }
1597
1598 static int
1599 e1000_diag_test_count(struct net_device *netdev)
1600 {
1601         return E1000_TEST_LEN;
1602 }
1603
1604 extern void e1000_power_up_phy(struct e1000_adapter *);
1605
1606 static void
1607 e1000_diag_test(struct net_device *netdev,
1608                    struct ethtool_test *eth_test, uint64_t *data)
1609 {
1610         struct e1000_adapter *adapter = netdev_priv(netdev);
1611         boolean_t if_running = netif_running(netdev);
1612
1613         set_bit(__E1000_DRIVER_TESTING, &adapter->flags);
1614         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1615                 /* Offline tests */
1616
1617                 /* save speed, duplex, autoneg settings */
1618                 uint16_t autoneg_advertised = adapter->hw.autoneg_advertised;
1619                 uint8_t forced_speed_duplex = adapter->hw.forced_speed_duplex;
1620                 uint8_t autoneg = adapter->hw.autoneg;
1621
1622                 DPRINTK(HW, INFO, "offline testing starting\n");
1623
1624                 /* Link test performed before hardware reset so autoneg doesn't
1625                  * interfere with test result */
1626                 if (e1000_link_test(adapter, &data[4]))
1627                         eth_test->flags |= ETH_TEST_FL_FAILED;
1628
1629                 if (if_running)
1630                         /* indicate we're in test mode */
1631                         dev_close(netdev);
1632                 else
1633                         e1000_reset(adapter);
1634
1635                 if (e1000_reg_test(adapter, &data[0]))
1636                         eth_test->flags |= ETH_TEST_FL_FAILED;
1637
1638                 e1000_reset(adapter);
1639                 if (e1000_eeprom_test(adapter, &data[1]))
1640                         eth_test->flags |= ETH_TEST_FL_FAILED;
1641
1642                 e1000_reset(adapter);
1643                 if (e1000_intr_test(adapter, &data[2]))
1644                         eth_test->flags |= ETH_TEST_FL_FAILED;
1645
1646                 e1000_reset(adapter);
1647                 /* make sure the phy is powered up */
1648                 e1000_power_up_phy(adapter);
1649                 if (e1000_loopback_test(adapter, &data[3]))
1650                         eth_test->flags |= ETH_TEST_FL_FAILED;
1651
1652                 /* restore speed, duplex, autoneg settings */
1653                 adapter->hw.autoneg_advertised = autoneg_advertised;
1654                 adapter->hw.forced_speed_duplex = forced_speed_duplex;
1655                 adapter->hw.autoneg = autoneg;
1656
1657                 e1000_reset(adapter);
1658                 clear_bit(__E1000_DRIVER_TESTING, &adapter->flags);
1659                 if (if_running)
1660                         dev_open(netdev);
1661         } else {
1662                 DPRINTK(HW, INFO, "online testing starting\n");
1663                 /* Online tests */
1664                 if (e1000_link_test(adapter, &data[4]))
1665                         eth_test->flags |= ETH_TEST_FL_FAILED;
1666
1667                 /* Offline tests aren't run; pass by default */
1668                 data[0] = 0;
1669                 data[1] = 0;
1670                 data[2] = 0;
1671                 data[3] = 0;
1672
1673                 clear_bit(__E1000_DRIVER_TESTING, &adapter->flags);
1674         }
1675         msleep_interruptible(4 * 1000);
1676 }
1677
1678 static int e1000_wol_exclusion(struct e1000_adapter *adapter, struct ethtool_wolinfo *wol)
1679 {
1680         struct e1000_hw *hw = &adapter->hw;
1681         int retval = 1; /* fail by default */
1682
1683         switch (hw->device_id) {
1684         case E1000_DEV_ID_82543GC_FIBER:
1685         case E1000_DEV_ID_82543GC_COPPER:
1686         case E1000_DEV_ID_82544EI_FIBER:
1687         case E1000_DEV_ID_82546EB_QUAD_COPPER:
1688         case E1000_DEV_ID_82545EM_FIBER:
1689         case E1000_DEV_ID_82545EM_COPPER:
1690         case E1000_DEV_ID_82546GB_QUAD_COPPER:
1691         case E1000_DEV_ID_82546GB_PCIE:
1692                 /* these don't support WoL at all */
1693                 wol->supported = 0;
1694                 break;
1695         case E1000_DEV_ID_82546EB_FIBER:
1696         case E1000_DEV_ID_82546GB_FIBER:
1697         case E1000_DEV_ID_82571EB_FIBER:
1698         case E1000_DEV_ID_82571EB_SERDES:
1699         case E1000_DEV_ID_82571EB_COPPER:
1700                 /* Wake events not supported on port B */
1701                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) {
1702                         wol->supported = 0;
1703                         break;
1704                 }
1705                 /* return success for non excluded adapter ports */
1706                 retval = 0;
1707                 break;
1708         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1709                 /* quad port adapters only support WoL on port A */
1710                 if (!adapter->quad_port_a) {
1711                         wol->supported = 0;
1712                         break;
1713                 }
1714                 /* return success for non excluded adapter ports */
1715                 retval = 0;
1716                 break;
1717         default:
1718                 /* dual port cards only support WoL on port A from now on
1719                  * unless it was enabled in the eeprom for port B
1720                  * so exclude FUNC_1 ports from having WoL enabled */
1721                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1 &&
1722                     !adapter->eeprom_wol) {
1723                         wol->supported = 0;
1724                         break;
1725                 }
1726
1727                 retval = 0;
1728         }
1729
1730         return retval;
1731 }
1732
1733 static void
1734 e1000_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1735 {
1736         struct e1000_adapter *adapter = netdev_priv(netdev);
1737
1738         wol->supported = WAKE_UCAST | WAKE_MCAST |
1739                          WAKE_BCAST | WAKE_MAGIC;
1740         wol->wolopts = 0;
1741
1742         /* this function will set ->supported = 0 and return 1 if wol is not
1743          * supported by this hardware */
1744         if (e1000_wol_exclusion(adapter, wol))
1745                 return;
1746
1747         /* apply any specific unsupported masks here */
1748         switch (adapter->hw.device_id) {
1749         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1750                 /* KSP3 does not suppport UCAST wake-ups */
1751                 wol->supported &= ~WAKE_UCAST;
1752
1753                 if (adapter->wol & E1000_WUFC_EX)
1754                         DPRINTK(DRV, ERR, "Interface does not support "
1755                         "directed (unicast) frame wake-up packets\n");
1756                 break;
1757         default:
1758                 break;
1759         }
1760
1761         if (adapter->wol & E1000_WUFC_EX)
1762                 wol->wolopts |= WAKE_UCAST;
1763         if (adapter->wol & E1000_WUFC_MC)
1764                 wol->wolopts |= WAKE_MCAST;
1765         if (adapter->wol & E1000_WUFC_BC)
1766                 wol->wolopts |= WAKE_BCAST;
1767         if (adapter->wol & E1000_WUFC_MAG)
1768                 wol->wolopts |= WAKE_MAGIC;
1769
1770         return;
1771 }
1772
1773 static int
1774 e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1775 {
1776         struct e1000_adapter *adapter = netdev_priv(netdev);
1777         struct e1000_hw *hw = &adapter->hw;
1778
1779         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
1780                 return -EOPNOTSUPP;
1781
1782         if (e1000_wol_exclusion(adapter, wol))
1783                 return wol->wolopts ? -EOPNOTSUPP : 0;
1784
1785         switch (hw->device_id) {
1786         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1787                 if (wol->wolopts & WAKE_UCAST) {
1788                         DPRINTK(DRV, ERR, "Interface does not support "
1789                         "directed (unicast) frame wake-up packets\n");
1790                         return -EOPNOTSUPP;
1791                 }
1792                 break;
1793         default:
1794                 break;
1795         }
1796
1797         /* these settings will always override what we currently have */
1798         adapter->wol = 0;
1799
1800         if (wol->wolopts & WAKE_UCAST)
1801                 adapter->wol |= E1000_WUFC_EX;
1802         if (wol->wolopts & WAKE_MCAST)
1803                 adapter->wol |= E1000_WUFC_MC;
1804         if (wol->wolopts & WAKE_BCAST)
1805                 adapter->wol |= E1000_WUFC_BC;
1806         if (wol->wolopts & WAKE_MAGIC)
1807                 adapter->wol |= E1000_WUFC_MAG;
1808
1809         return 0;
1810 }
1811
1812 /* toggle LED 4 times per second = 2 "blinks" per second */
1813 #define E1000_ID_INTERVAL       (HZ/4)
1814
1815 /* bit defines for adapter->led_status */
1816 #define E1000_LED_ON            0
1817
1818 static void
1819 e1000_led_blink_callback(unsigned long data)
1820 {
1821         struct e1000_adapter *adapter = (struct e1000_adapter *) data;
1822
1823         if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
1824                 e1000_led_off(&adapter->hw);
1825         else
1826                 e1000_led_on(&adapter->hw);
1827
1828         mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
1829 }
1830
1831 static int
1832 e1000_phys_id(struct net_device *netdev, uint32_t data)
1833 {
1834         struct e1000_adapter *adapter = netdev_priv(netdev);
1835
1836         if (!data || data > (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ))
1837                 data = (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ);
1838
1839         if (adapter->hw.mac_type < e1000_82571) {
1840                 if (!adapter->blink_timer.function) {
1841                         init_timer(&adapter->blink_timer);
1842                         adapter->blink_timer.function = e1000_led_blink_callback;
1843                         adapter->blink_timer.data = (unsigned long) adapter;
1844                 }
1845                 e1000_setup_led(&adapter->hw);
1846                 mod_timer(&adapter->blink_timer, jiffies);
1847                 msleep_interruptible(data * 1000);
1848                 del_timer_sync(&adapter->blink_timer);
1849         } else if (adapter->hw.phy_type == e1000_phy_ife) {
1850                 if (!adapter->blink_timer.function) {
1851                         init_timer(&adapter->blink_timer);
1852                         adapter->blink_timer.function = e1000_led_blink_callback;
1853                         adapter->blink_timer.data = (unsigned long) adapter;
1854                 }
1855                 mod_timer(&adapter->blink_timer, jiffies);
1856                 msleep_interruptible(data * 1000);
1857                 del_timer_sync(&adapter->blink_timer);
1858                 e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0);
1859         } else {
1860                 e1000_blink_led_start(&adapter->hw);
1861                 msleep_interruptible(data * 1000);
1862         }
1863
1864         e1000_led_off(&adapter->hw);
1865         clear_bit(E1000_LED_ON, &adapter->led_status);
1866         e1000_cleanup_led(&adapter->hw);
1867
1868         return 0;
1869 }
1870
1871 static int
1872 e1000_nway_reset(struct net_device *netdev)
1873 {
1874         struct e1000_adapter *adapter = netdev_priv(netdev);
1875         if (netif_running(netdev))
1876                 e1000_reinit_locked(adapter);
1877         return 0;
1878 }
1879
1880 static int
1881 e1000_get_stats_count(struct net_device *netdev)
1882 {
1883         return E1000_STATS_LEN;
1884 }
1885
1886 static void
1887 e1000_get_ethtool_stats(struct net_device *netdev,
1888                 struct ethtool_stats *stats, uint64_t *data)
1889 {
1890         struct e1000_adapter *adapter = netdev_priv(netdev);
1891         int i;
1892
1893         e1000_update_stats(adapter);
1894         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1895                 char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
1896                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1897                         sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
1898         }
1899 /*      BUG_ON(i != E1000_STATS_LEN); */
1900 }
1901
1902 static void
1903 e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
1904 {
1905         uint8_t *p = data;
1906         int i;
1907
1908         switch (stringset) {
1909         case ETH_SS_TEST:
1910                 memcpy(data, *e1000_gstrings_test,
1911                         E1000_TEST_LEN*ETH_GSTRING_LEN);
1912                 break;
1913         case ETH_SS_STATS:
1914                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1915                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1916                                ETH_GSTRING_LEN);
1917                         p += ETH_GSTRING_LEN;
1918                 }
1919 /*              BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
1920                 break;
1921         }
1922 }
1923
1924 static struct ethtool_ops e1000_ethtool_ops = {
1925         .get_settings           = e1000_get_settings,
1926         .set_settings           = e1000_set_settings,
1927         .get_drvinfo            = e1000_get_drvinfo,
1928         .get_regs_len           = e1000_get_regs_len,
1929         .get_regs               = e1000_get_regs,
1930         .get_wol                = e1000_get_wol,
1931         .set_wol                = e1000_set_wol,
1932         .get_msglevel           = e1000_get_msglevel,
1933         .set_msglevel           = e1000_set_msglevel,
1934         .nway_reset             = e1000_nway_reset,
1935         .get_link               = ethtool_op_get_link,
1936         .get_eeprom_len         = e1000_get_eeprom_len,
1937         .get_eeprom             = e1000_get_eeprom,
1938         .set_eeprom             = e1000_set_eeprom,
1939         .get_ringparam          = e1000_get_ringparam,
1940         .set_ringparam          = e1000_set_ringparam,
1941         .get_pauseparam         = e1000_get_pauseparam,
1942         .set_pauseparam         = e1000_set_pauseparam,
1943         .get_rx_csum            = e1000_get_rx_csum,
1944         .set_rx_csum            = e1000_set_rx_csum,
1945         .get_tx_csum            = e1000_get_tx_csum,
1946         .set_tx_csum            = e1000_set_tx_csum,
1947         .get_sg                 = ethtool_op_get_sg,
1948         .set_sg                 = ethtool_op_set_sg,
1949 #ifdef NETIF_F_TSO
1950         .get_tso                = ethtool_op_get_tso,
1951         .set_tso                = e1000_set_tso,
1952 #endif
1953         .self_test_count        = e1000_diag_test_count,
1954         .self_test              = e1000_diag_test,
1955         .get_strings            = e1000_get_strings,
1956         .phys_id                = e1000_phys_id,
1957         .get_stats_count        = e1000_get_stats_count,
1958         .get_ethtool_stats      = e1000_get_ethtool_stats,
1959         .get_perm_addr          = ethtool_op_get_perm_addr,
1960 };
1961
1962 void e1000_set_ethtool_ops(struct net_device *netdev)
1963 {
1964         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
1965 }