drivers/net/e1000/e1000_ethtool.c

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2006 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   Linux NICS <linux.nics@intel.com>
  24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27 *******************************************************************************/
  28
  29 /* ethtool support for e1000 */
  30
  31 #include "e1000.h"
  32
  33 #include <asm/uaccess.h>
  34
  35 extern char e1000_driver_name[];
  36 extern char e1000_driver_version[];
  37
  38 extern int e1000_up(struct e1000_adapter *adapter);
  39 extern void e1000_down(struct e1000_adapter *adapter);
  40 extern void e1000_reinit_locked(struct e1000_adapter *adapter);
  41 extern void e1000_reset(struct e1000_adapter *adapter);
  42 extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx);
  43 extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
  44 extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
  45 extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
  46 extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
  47 extern void e1000_update_stats(struct e1000_adapter *adapter);
  48
  49
  50 struct e1000_stats {
  51         char stat_string[ETH_GSTRING_LEN];
  52         int sizeof_stat;
  53         int stat_offset;
  54 };
  55
  56 #define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \
  57                       offsetof(struct e1000_adapter, m)
  58 static const struct e1000_stats e1000_gstrings_stats[] = {
  59         { "rx_packets", E1000_STAT(stats.gprc) },
  60         { "tx_packets", E1000_STAT(stats.gptc) },
  61         { "rx_bytes", E1000_STAT(stats.gorcl) },
  62         { "tx_bytes", E1000_STAT(stats.gotcl) },
  63         { "rx_broadcast", E1000_STAT(stats.bprc) },
  64         { "tx_broadcast", E1000_STAT(stats.bptc) },
  65         { "rx_multicast", E1000_STAT(stats.mprc) },
  66         { "tx_multicast", E1000_STAT(stats.mptc) },
  67         { "rx_errors", E1000_STAT(stats.rxerrc) },
  68         { "tx_errors", E1000_STAT(stats.txerrc) },
  69         { "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
  70         { "multicast", E1000_STAT(stats.mprc) },
  71         { "collisions", E1000_STAT(stats.colc) },
  72         { "rx_length_errors", E1000_STAT(stats.rlerrc) },
  73         { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
  74         { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
  75         { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
  76         { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
  77         { "rx_missed_errors", E1000_STAT(stats.mpc) },
  78         { "tx_aborted_errors", E1000_STAT(stats.ecol) },
  79         { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
  80         { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
  81         { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
  82         { "tx_window_errors", E1000_STAT(stats.latecol) },
  83         { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
  84         { "tx_deferred_ok", E1000_STAT(stats.dc) },
  85         { "tx_single_coll_ok", E1000_STAT(stats.scc) },
  86         { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
  87         { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
  88         { "tx_restart_queue", E1000_STAT(restart_queue) },
  89         { "rx_long_length_errors", E1000_STAT(stats.roc) },
  90         { "rx_short_length_errors", E1000_STAT(stats.ruc) },
  91         { "rx_align_errors", E1000_STAT(stats.algnerrc) },
  92         { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
  93         { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
  94         { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
  95         { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
  96         { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
  97         { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
  98         { "rx_long_byte_count", E1000_STAT(stats.gorcl) },
  99         { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
 100         { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
 101         { "rx_header_split", E1000_STAT(rx_hdr_split) },
 102         { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
 103         { "tx_smbus", E1000_STAT(stats.mgptc) },
 104         { "rx_smbus", E1000_STAT(stats.mgprc) },
 105         { "dropped_smbus", E1000_STAT(stats.mgpdc) },
 106 };
 107
 108 #define E1000_QUEUE_STATS_LEN 0
 109 #define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
 110 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)
 111 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 112         "Register test  (offline)", "Eeprom test    (offline)",
 113         "Interrupt test (offline)", "Loopback test  (offline)",
 114         "Link test   (on/offline)"
 115 };
 116 #define E1000_TEST_LEN sizeof(e1000_gstrings_test) / ETH_GSTRING_LEN
 117
 118 static int
 119 e1000_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 120 {
 121         struct e1000_adapter *adapter = netdev_priv(netdev);
 122         struct e1000_hw *hw = &adapter->hw;
 123
 124         if (hw->media_type == e1000_media_type_copper) {
 125
 126                 ecmd->supported = (SUPPORTED_10baseT_Half |
 127                                    SUPPORTED_10baseT_Full |
 128                                    SUPPORTED_100baseT_Half |
 129                                    SUPPORTED_100baseT_Full |
 130                                    SUPPORTED_1000baseT_Full|
 131                                    SUPPORTED_Autoneg |
 132                                    SUPPORTED_TP);
 133                 if (hw->phy_type == e1000_phy_ife)
 134                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 135                 ecmd->advertising = ADVERTISED_TP;
 136
 137                 if (hw->autoneg == 1) {
 138                         ecmd->advertising |= ADVERTISED_Autoneg;
 139                         /* the e1000 autoneg seems to match ethtool nicely */
 140                         ecmd->advertising |= hw->autoneg_advertised;
 141                 }
 142
 143                 ecmd->port = PORT_TP;
 144                 ecmd->phy_address = hw->phy_addr;
 145
 146                 if (hw->mac_type == e1000_82543)
 147                         ecmd->transceiver = XCVR_EXTERNAL;
 148                 else
 149                         ecmd->transceiver = XCVR_INTERNAL;
 150
 151         } else {
 152                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 153                                      SUPPORTED_FIBRE |
 154                                      SUPPORTED_Autoneg);
 155
 156                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 157                                      ADVERTISED_FIBRE |
 158                                      ADVERTISED_Autoneg);
 159
 160                 ecmd->port = PORT_FIBRE;
 161
 162                 if (hw->mac_type >= e1000_82545)
 163                         ecmd->transceiver = XCVR_INTERNAL;
 164                 else
 165                         ecmd->transceiver = XCVR_EXTERNAL;
 166         }
 167
 168         if (E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU) {
 169
 170                 e1000_get_speed_and_duplex(hw, &adapter->link_speed,
 171                                                    &adapter->link_duplex);
 172                 ecmd->speed = adapter->link_speed;
 173
 174                 /* unfortunatly FULL_DUPLEX != DUPLEX_FULL
 175                  *          and HALF_DUPLEX != DUPLEX_HALF */
 176
 177                 if (adapter->link_duplex == FULL_DUPLEX)
 178                         ecmd->duplex = DUPLEX_FULL;
 179                 else
 180                         ecmd->duplex = DUPLEX_HALF;
 181         } else {
 182                 ecmd->speed = -1;
 183                 ecmd->duplex = -1;
 184         }
 185
 186         ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
 187                          hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 188         return 0;
 189 }
 190
 191 static int
 192 e1000_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 193 {
 194         struct e1000_adapter *adapter = netdev_priv(netdev);
 195         struct e1000_hw *hw = &adapter->hw;
 196
 197         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 198          * cannot be changed */
 199         if (e1000_check_phy_reset_block(hw)) {
 200                 DPRINTK(DRV, ERR, "Cannot change link characteristics "
 201                         "when SoL/IDER is active.\n");
 202                 return -EINVAL;
 203         }
 204
 205         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 206                 msleep(1);
 207
 208         if (ecmd->autoneg == AUTONEG_ENABLE) {
 209                 hw->autoneg = 1;
 210                 if (hw->media_type == e1000_media_type_fiber)
 211                         hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
 212                                      ADVERTISED_FIBRE |
 213                                      ADVERTISED_Autoneg;
 214                 else
 215                         hw->autoneg_advertised = ecmd->advertising |
 216                                                  ADVERTISED_TP |
 217                                                  ADVERTISED_Autoneg;
 218                 ecmd->advertising = hw->autoneg_advertised;
 219         } else
 220                 if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
 221                         clear_bit(__E1000_RESETTING, &adapter->flags);
 222                         return -EINVAL;
 223                 }
 224
 225         /* reset the link */
 226
 227         if (netif_running(adapter->netdev)) {
 228                 e1000_down(adapter);
 229                 e1000_up(adapter);
 230         } else
 231                 e1000_reset(adapter);
 232
 233         clear_bit(__E1000_RESETTING, &adapter->flags);
 234         return 0;
 235 }
 236
 237 static void
 238 e1000_get_pauseparam(struct net_device *netdev,
 239                      struct ethtool_pauseparam *pause)
 240 {
 241         struct e1000_adapter *adapter = netdev_priv(netdev);
 242         struct e1000_hw *hw = &adapter->hw;
 243
 244         pause->autoneg =
 245                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 246
 247         if (hw->fc == E1000_FC_RX_PAUSE)
 248                 pause->rx_pause = 1;
 249         else if (hw->fc == E1000_FC_TX_PAUSE)
 250                 pause->tx_pause = 1;
 251         else if (hw->fc == E1000_FC_FULL) {
 252                 pause->rx_pause = 1;
 253                 pause->tx_pause = 1;
 254         }
 255 }
 256
 257 static int
 258 e1000_set_pauseparam(struct net_device *netdev,
 259                      struct ethtool_pauseparam *pause)
 260 {
 261         struct e1000_adapter *adapter = netdev_priv(netdev);
 262         struct e1000_hw *hw = &adapter->hw;
 263         int retval = 0;
 264
 265         adapter->fc_autoneg = pause->autoneg;
 266
 267         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 268                 msleep(1);
 269
 270         if (pause->rx_pause && pause->tx_pause)
 271                 hw->fc = E1000_FC_FULL;
 272         else if (pause->rx_pause && !pause->tx_pause)
 273                 hw->fc = E1000_FC_RX_PAUSE;
 274         else if (!pause->rx_pause && pause->tx_pause)
 275                 hw->fc = E1000_FC_TX_PAUSE;
 276         else if (!pause->rx_pause && !pause->tx_pause)
 277                 hw->fc = E1000_FC_NONE;
 278
 279         hw->original_fc = hw->fc;
 280
 281         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 282                 if (netif_running(adapter->netdev)) {
 283                         e1000_down(adapter);
 284                         e1000_up(adapter);
 285                 } else
 286                         e1000_reset(adapter);
 287         } else
 288                 retval = ((hw->media_type == e1000_media_type_fiber) ?
 289                           e1000_setup_link(hw) : e1000_force_mac_fc(hw));
 290
 291         clear_bit(__E1000_RESETTING, &adapter->flags);
 292         return retval;
 293 }
 294
 295 static uint32_t
 296 e1000_get_rx_csum(struct net_device *netdev)
 297 {
 298         struct e1000_adapter *adapter = netdev_priv(netdev);
 299         return adapter->rx_csum;
 300 }
 301
 302 static int
 303 e1000_set_rx_csum(struct net_device *netdev, uint32_t data)
 304 {
 305         struct e1000_adapter *adapter = netdev_priv(netdev);
 306         adapter->rx_csum = data;
 307
 308         if (netif_running(netdev))
 309                 e1000_reinit_locked(adapter);
 310         else
 311                 e1000_reset(adapter);
 312         return 0;
 313 }
 314
 315 static uint32_t
 316 e1000_get_tx_csum(struct net_device *netdev)
 317 {
 318         return (netdev->features & NETIF_F_HW_CSUM) != 0;
 319 }
 320
 321 static int
 322 e1000_set_tx_csum(struct net_device *netdev, uint32_t data)
 323 {
 324         struct e1000_adapter *adapter = netdev_priv(netdev);
 325
 326         if (adapter->hw.mac_type < e1000_82543) {
 327                 if (!data)
 328                         return -EINVAL;
 329                 return 0;
 330         }
 331
 332         if (data)
 333                 netdev->features |= NETIF_F_HW_CSUM;
 334         else
 335                 netdev->features &= ~NETIF_F_HW_CSUM;
 336
 337         return 0;
 338 }
 339
 340 static int
 341 e1000_set_tso(struct net_device *netdev, uint32_t data)
 342 {
 343         struct e1000_adapter *adapter = netdev_priv(netdev);
 344         if ((adapter->hw.mac_type < e1000_82544) ||
 345             (adapter->hw.mac_type == e1000_82547))
 346                 return data ? -EINVAL : 0;
 347
 348         if (data)
 349                 netdev->features |= NETIF_F_TSO;
 350         else
 351                 netdev->features &= ~NETIF_F_TSO;
 352
 353         if (data)
 354                 netdev->features |= NETIF_F_TSO6;
 355         else
 356                 netdev->features &= ~NETIF_F_TSO6;
 357
 358         DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
 359         adapter->tso_force = TRUE;
 360         return 0;
 361 }
 362
 363 static uint32_t
 364 e1000_get_msglevel(struct net_device *netdev)
 365 {
 366         struct e1000_adapter *adapter = netdev_priv(netdev);
 367         return adapter->msg_enable;
 368 }
 369
 370 static void
 371 e1000_set_msglevel(struct net_device *netdev, uint32_t data)
 372 {
 373         struct e1000_adapter *adapter = netdev_priv(netdev);
 374         adapter->msg_enable = data;
 375 }
 376
 377 static int
 378 e1000_get_regs_len(struct net_device *netdev)
 379 {
 380 #define E1000_REGS_LEN 32
 381         return E1000_REGS_LEN * sizeof(uint32_t);
 382 }
 383
 384 static void
 385 e1000_get_regs(struct net_device *netdev,
 386                struct ethtool_regs *regs, void *p)
 387 {
 388         struct e1000_adapter *adapter = netdev_priv(netdev);
 389         struct e1000_hw *hw = &adapter->hw;
 390         uint32_t *regs_buff = p;
 391         uint16_t phy_data;
 392
 393         memset(p, 0, E1000_REGS_LEN * sizeof(uint32_t));
 394
 395         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 396
 397         regs_buff[0]  = E1000_READ_REG(hw, CTRL);
 398         regs_buff[1]  = E1000_READ_REG(hw, STATUS);
 399
 400         regs_buff[2]  = E1000_READ_REG(hw, RCTL);
 401         regs_buff[3]  = E1000_READ_REG(hw, RDLEN);
 402         regs_buff[4]  = E1000_READ_REG(hw, RDH);
 403         regs_buff[5]  = E1000_READ_REG(hw, RDT);
 404         regs_buff[6]  = E1000_READ_REG(hw, RDTR);
 405
 406         regs_buff[7]  = E1000_READ_REG(hw, TCTL);
 407         regs_buff[8]  = E1000_READ_REG(hw, TDLEN);
 408         regs_buff[9]  = E1000_READ_REG(hw, TDH);
 409         regs_buff[10] = E1000_READ_REG(hw, TDT);
 410         regs_buff[11] = E1000_READ_REG(hw, TIDV);
 411
 412         regs_buff[12] = adapter->hw.phy_type;  /* PHY type (IGP=1, M88=0) */
 413         if (hw->phy_type == e1000_phy_igp) {
 414                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 415                                     IGP01E1000_PHY_AGC_A);
 416                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
 417                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 418                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 419                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 420                                     IGP01E1000_PHY_AGC_B);
 421                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
 422                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 423                 regs_buff[14] = (uint32_t)phy_data; /* cable length */
 424                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 425                                     IGP01E1000_PHY_AGC_C);
 426                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
 427                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 428                 regs_buff[15] = (uint32_t)phy_data; /* cable length */
 429                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 430                                     IGP01E1000_PHY_AGC_D);
 431                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
 432                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 433                 regs_buff[16] = (uint32_t)phy_data; /* cable length */
 434                 regs_buff[17] = 0; /* extended 10bt distance (not needed) */
 435                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 436                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
 437                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 438                 regs_buff[18] = (uint32_t)phy_data; /* cable polarity */
 439                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 440                                     IGP01E1000_PHY_PCS_INIT_REG);
 441                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
 442                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 443                 regs_buff[19] = (uint32_t)phy_data; /* cable polarity */
 444                 regs_buff[20] = 0; /* polarity correction enabled (always) */
 445                 regs_buff[22] = 0; /* phy receive errors (unavailable) */
 446                 regs_buff[23] = regs_buff[18]; /* mdix mode */
 447                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 448         } else {
 449                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 450                 regs_buff[13] = (uint32_t)phy_data; /* cable length */
 451                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 452                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 453                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 454                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 455                 regs_buff[17] = (uint32_t)phy_data; /* extended 10bt distance */
 456                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 457                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 458                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 459                 /* phy receive errors */
 460                 regs_buff[22] = adapter->phy_stats.receive_errors;
 461                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 462         }
 463         regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
 464         e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
 465         regs_buff[24] = (uint32_t)phy_data;  /* phy local receiver status */
 466         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 467         if (hw->mac_type >= e1000_82540 &&
 468             hw->mac_type < e1000_82571 &&
 469             hw->media_type == e1000_media_type_copper) {
 470                 regs_buff[26] = E1000_READ_REG(hw, MANC);
 471         }
 472 }
 473
 474 static int
 475 e1000_get_eeprom_len(struct net_device *netdev)
 476 {
 477         struct e1000_adapter *adapter = netdev_priv(netdev);
 478         return adapter->hw.eeprom.word_size * 2;
 479 }
 480
 481 static int
 482 e1000_get_eeprom(struct net_device *netdev,
 483                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 484 {
 485         struct e1000_adapter *adapter = netdev_priv(netdev);
 486         struct e1000_hw *hw = &adapter->hw;
 487         uint16_t *eeprom_buff;
 488         int first_word, last_word;
 489         int ret_val = 0;
 490         uint16_t i;
 491
 492         if (eeprom->len == 0)
 493                 return -EINVAL;
 494
 495         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 496
 497         first_word = eeprom->offset >> 1;
 498         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 499
 500         eeprom_buff = kmalloc(sizeof(uint16_t) *
 501                         (last_word - first_word + 1), GFP_KERNEL);
 502         if (!eeprom_buff)
 503                 return -ENOMEM;
 504
 505         if (hw->eeprom.type == e1000_eeprom_spi)
 506                 ret_val = e1000_read_eeprom(hw, first_word,
 507                                             last_word - first_word + 1,
 508                                             eeprom_buff);
 509         else {
 510                 for (i = 0; i < last_word - first_word + 1; i++)
 511                         if ((ret_val = e1000_read_eeprom(hw, first_word + i, 1,
 512                                                         &eeprom_buff[i])))
 513                                 break;
 514         }
 515
 516         /* Device's eeprom is always little-endian, word addressable */
 517         for (i = 0; i < last_word - first_word + 1; i++)
 518                 le16_to_cpus(&eeprom_buff[i]);
 519
 520         memcpy(bytes, (uint8_t *)eeprom_buff + (eeprom->offset & 1),
 521                         eeprom->len);
 522         kfree(eeprom_buff);
 523
 524         return ret_val;
 525 }
 526
 527 static int
 528 e1000_set_eeprom(struct net_device *netdev,
 529                       struct ethtool_eeprom *eeprom, uint8_t *bytes)
 530 {
 531         struct e1000_adapter *adapter = netdev_priv(netdev);
 532         struct e1000_hw *hw = &adapter->hw;
 533         uint16_t *eeprom_buff;
 534         void *ptr;
 535         int max_len, first_word, last_word, ret_val = 0;
 536         uint16_t i;
 537
 538         if (eeprom->len == 0)
 539                 return -EOPNOTSUPP;
 540
 541         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 542                 return -EFAULT;
 543
 544         max_len = hw->eeprom.word_size * 2;
 545
 546         first_word = eeprom->offset >> 1;
 547         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 548         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 549         if (!eeprom_buff)
 550                 return -ENOMEM;
 551
 552         ptr = (void *)eeprom_buff;
 553
 554         if (eeprom->offset & 1) {
 555                 /* need read/modify/write of first changed EEPROM word */
 556                 /* only the second byte of the word is being modified */
 557                 ret_val = e1000_read_eeprom(hw, first_word, 1,
 558                                             &eeprom_buff[0]);
 559                 ptr++;
 560         }
 561         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 562                 /* need read/modify/write of last changed EEPROM word */
 563                 /* only the first byte of the word is being modified */
 564                 ret_val = e1000_read_eeprom(hw, last_word, 1,
 565                                   &eeprom_buff[last_word - first_word]);
 566         }
 567
 568         /* Device's eeprom is always little-endian, word addressable */
 569         for (i = 0; i < last_word - first_word + 1; i++)
 570                 le16_to_cpus(&eeprom_buff[i]);
 571
 572         memcpy(ptr, bytes, eeprom->len);
 573
 574         for (i = 0; i < last_word - first_word + 1; i++)
 575                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 576
 577         ret_val = e1000_write_eeprom(hw, first_word,
 578                                      last_word - first_word + 1, eeprom_buff);
 579
 580         /* Update the checksum over the first part of the EEPROM if needed
 581          * and flush shadow RAM for 82573 conrollers */
 582         if ((ret_val == 0) && ((first_word <= EEPROM_CHECKSUM_REG) ||
 583                                 (hw->mac_type == e1000_82573)))
 584                 e1000_update_eeprom_checksum(hw);
 585
 586         kfree(eeprom_buff);
 587         return ret_val;
 588 }
 589
 590 static void
 591 e1000_get_drvinfo(struct net_device *netdev,
 592                        struct ethtool_drvinfo *drvinfo)
 593 {
 594         struct e1000_adapter *adapter = netdev_priv(netdev);
 595         char firmware_version[32];
 596         uint16_t eeprom_data;
 597
 598         strncpy(drvinfo->driver,  e1000_driver_name, 32);
 599         strncpy(drvinfo->version, e1000_driver_version, 32);
 600
 601         /* EEPROM image version # is reported as firmware version # for
 602          * 8257{1|2|3} controllers */
 603         e1000_read_eeprom(&adapter->hw, 5, 1, &eeprom_data);
 604         switch (adapter->hw.mac_type) {
 605         case e1000_82571:
 606         case e1000_82572:
 607         case e1000_82573:
 608         case e1000_80003es2lan:
 609         case e1000_ich8lan:
 610                 sprintf(firmware_version, "%d.%d-%d",
 611                         (eeprom_data & 0xF000) >> 12,
 612                         (eeprom_data & 0x0FF0) >> 4,
 613                         eeprom_data & 0x000F);
 614                 break;
 615         default:
 616                 sprintf(firmware_version, "N/A");
 617         }
 618
 619         strncpy(drvinfo->fw_version, firmware_version, 32);
 620         strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 621         drvinfo->n_stats = E1000_STATS_LEN;
 622         drvinfo->testinfo_len = E1000_TEST_LEN;
 623         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 624         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 625 }
 626
 627 static void
 628 e1000_get_ringparam(struct net_device *netdev,
 629                     struct ethtool_ringparam *ring)
 630 {
 631         struct e1000_adapter *adapter = netdev_priv(netdev);
 632         e1000_mac_type mac_type = adapter->hw.mac_type;
 633         struct e1000_tx_ring *txdr = adapter->tx_ring;
 634         struct e1000_rx_ring *rxdr = adapter->rx_ring;
 635
 636         ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
 637                 E1000_MAX_82544_RXD;
 638         ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
 639                 E1000_MAX_82544_TXD;
 640         ring->rx_mini_max_pending = 0;
 641         ring->rx_jumbo_max_pending = 0;
 642         ring->rx_pending = rxdr->count;
 643         ring->tx_pending = txdr->count;
 644         ring->rx_mini_pending = 0;
 645         ring->rx_jumbo_pending = 0;
 646 }
 647
 648 static int
 649 e1000_set_ringparam(struct net_device *netdev,
 650                     struct ethtool_ringparam *ring)
 651 {
 652         struct e1000_adapter *adapter = netdev_priv(netdev);
 653         e1000_mac_type mac_type = adapter->hw.mac_type;
 654         struct e1000_tx_ring *txdr, *tx_old;
 655         struct e1000_rx_ring *rxdr, *rx_old;
 656         int i, err;
 657
 658         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 659                 return -EINVAL;
 660
 661         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 662                 msleep(1);
 663
 664         if (netif_running(adapter->netdev))
 665                 e1000_down(adapter);
 666
 667         tx_old = adapter->tx_ring;
 668         rx_old = adapter->rx_ring;
 669
 670         err = -ENOMEM;
 671         txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL);
 672         if (!txdr)
 673                 goto err_alloc_tx;
 674
 675         rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL);
 676         if (!rxdr)
 677                 goto err_alloc_rx;
 678
 679         adapter->tx_ring = txdr;
 680         adapter->rx_ring = rxdr;
 681
 682         rxdr->count = max(ring->rx_pending,(uint32_t)E1000_MIN_RXD);
 683         rxdr->count = min(rxdr->count,(uint32_t)(mac_type < e1000_82544 ?
 684                 E1000_MAX_RXD : E1000_MAX_82544_RXD));
 685         rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 686
 687         txdr->count = max(ring->tx_pending,(uint32_t)E1000_MIN_TXD);
 688         txdr->count = min(txdr->count,(uint32_t)(mac_type < e1000_82544 ?
 689                 E1000_MAX_TXD : E1000_MAX_82544_TXD));
 690         txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 691
 692         for (i = 0; i < adapter->num_tx_queues; i++)
 693                 txdr[i].count = txdr->count;
 694         for (i = 0; i < adapter->num_rx_queues; i++)
 695                 rxdr[i].count = rxdr->count;
 696
 697         if (netif_running(adapter->netdev)) {
 698                 /* Try to get new resources before deleting old */
 699                 if ((err = e1000_setup_all_rx_resources(adapter)))
 700                         goto err_setup_rx;
 701                 if ((err = e1000_setup_all_tx_resources(adapter)))
 702                         goto err_setup_tx;
 703
 704                 /* save the new, restore the old in order to free it,
 705                  * then restore the new back again */
 706
 707                 adapter->rx_ring = rx_old;
 708                 adapter->tx_ring = tx_old;
 709                 e1000_free_all_rx_resources(adapter);
 710                 e1000_free_all_tx_resources(adapter);
 711                 kfree(tx_old);
 712                 kfree(rx_old);
 713                 adapter->rx_ring = rxdr;
 714                 adapter->tx_ring = txdr;
 715                 if ((err = e1000_up(adapter)))
 716                         goto err_setup;
 717         }
 718
 719         clear_bit(__E1000_RESETTING, &adapter->flags);
 720         return 0;
 721 err_setup_tx:
 722         e1000_free_all_rx_resources(adapter);
 723 err_setup_rx:
 724         adapter->rx_ring = rx_old;
 725         adapter->tx_ring = tx_old;
 726         kfree(rxdr);
 727 err_alloc_rx:
 728         kfree(txdr);
 729 err_alloc_tx:
 730         e1000_up(adapter);
 731 err_setup:
 732         clear_bit(__E1000_RESETTING, &adapter->flags);
 733         return err;
 734 }
 735
 736 #define REG_PATTERN_TEST(R, M, W)                                              \
 737 {                                                                              \
 738         uint32_t pat, value;                                                   \
 739         uint32_t test[] =                                                      \
 740                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};              \
 741         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {              \
 742                 E1000_WRITE_REG(&adapter->hw, R, (test[pat] & W));             \
 743                 value = E1000_READ_REG(&adapter->hw, R);                       \
 744                 if (value != (test[pat] & W & M)) {                             \
 745                         DPRINTK(DRV, ERR, "pattern test reg %04X failed: got " \
 746                                 "0x%08X expected 0x%08X\n",                    \
 747                                 E1000_##R, value, (test[pat] & W & M));        \
 748                         *data = (adapter->hw.mac_type < e1000_82543) ?         \
 749                                 E1000_82542_##R : E1000_##R;                   \
 750                         return 1;                                              \
 751                 }                                                              \
 752         }                                                                      \
 753 }
 754
 755 #define REG_SET_AND_CHECK(R, M, W)                                             \
 756 {                                                                              \
 757         uint32_t value;                                                        \
 758         E1000_WRITE_REG(&adapter->hw, R, W & M);                               \
 759         value = E1000_READ_REG(&adapter->hw, R);                               \
 760         if ((W & M) != (value & M)) {                                          \
 761                 DPRINTK(DRV, ERR, "set/check reg %04X test failed: got 0x%08X "\
 762                         "expected 0x%08X\n", E1000_##R, (value & M), (W & M)); \
 763                 *data = (adapter->hw.mac_type < e1000_82543) ?                 \
 764                         E1000_82542_##R : E1000_##R;                           \
 765                 return 1;                                                      \
 766         }                                                                      \
 767 }
 768
 769 static int
 770 e1000_reg_test(struct e1000_adapter *adapter, uint64_t *data)
 771 {
 772         uint32_t value, before, after;
 773         uint32_t i, toggle;
 774
 775         /* The status register is Read Only, so a write should fail.
 776          * Some bits that get toggled are ignored.
 777          */
 778         switch (adapter->hw.mac_type) {
 779         /* there are several bits on newer hardware that are r/w */
 780         case e1000_82571:
 781         case e1000_82572:
 782         case e1000_80003es2lan:
 783                 toggle = 0x7FFFF3FF;
 784                 break;
 785         case e1000_82573:
 786         case e1000_ich8lan:
 787                 toggle = 0x7FFFF033;
 788                 break;
 789         default:
 790                 toggle = 0xFFFFF833;
 791                 break;
 792         }
 793
 794         before = E1000_READ_REG(&adapter->hw, STATUS);
 795         value = (E1000_READ_REG(&adapter->hw, STATUS) & toggle);
 796         E1000_WRITE_REG(&adapter->hw, STATUS, toggle);
 797         after = E1000_READ_REG(&adapter->hw, STATUS) & toggle;
 798         if (value != after) {
 799                 DPRINTK(DRV, ERR, "failed STATUS register test got: "
 800                         "0x%08X expected: 0x%08X\n", after, value);
 801                 *data = 1;
 802                 return 1;
 803         }
 804         /* restore previous status */
 805         E1000_WRITE_REG(&adapter->hw, STATUS, before);
 806
 807         if (adapter->hw.mac_type != e1000_ich8lan) {
 808                 REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 809                 REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
 810                 REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
 811                 REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
 812         }
 813
 814         REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
 815         REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 816         REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
 817         REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
 818         REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
 819         REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
 820         REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
 821         REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 822         REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 823         REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
 824
 825         REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
 826
 827         before = (adapter->hw.mac_type == e1000_ich8lan ?
 828                   0x06C3B33E : 0x06DFB3FE);
 829         REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
 830         REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
 831
 832         if (adapter->hw.mac_type >= e1000_82543) {
 833
 834                 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
 835                 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 836                 if (adapter->hw.mac_type != e1000_ich8lan)
 837                         REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
 838                 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 839                 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
 840                 value = (adapter->hw.mac_type == e1000_ich8lan ?
 841                          E1000_RAR_ENTRIES_ICH8LAN : E1000_RAR_ENTRIES);
 842                 for (i = 0; i < value; i++) {
 843                         REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF,
 844                                          0xFFFFFFFF);
 845                 }
 846
 847         } else {
 848
 849                 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
 850                 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
 851                 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
 852                 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
 853
 854         }
 855
 856         value = (adapter->hw.mac_type == e1000_ich8lan ?
 857                         E1000_MC_TBL_SIZE_ICH8LAN : E1000_MC_TBL_SIZE);
 858         for (i = 0; i < value; i++)
 859                 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
 860
 861         *data = 0;
 862         return 0;
 863 }
 864
 865 static int
 866 e1000_eeprom_test(struct e1000_adapter *adapter, uint64_t *data)
 867 {
 868         uint16_t temp;
 869         uint16_t checksum = 0;
 870         uint16_t i;
 871
 872         *data = 0;
 873         /* Read and add up the contents of the EEPROM */
 874         for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
 875                 if ((e1000_read_eeprom(&adapter->hw, i, 1, &temp)) < 0) {
 876                         *data = 1;
 877                         break;
 878                 }
 879                 checksum += temp;
 880         }
 881
 882         /* If Checksum is not Correct return error else test passed */
 883         if ((checksum != (uint16_t) EEPROM_SUM) && !(*data))
 884                 *data = 2;
 885
 886         return *data;
 887 }
 888
 889 static irqreturn_t
 890 e1000_test_intr(int irq, void *data)
 891 {
 892         struct net_device *netdev = (struct net_device *) data;
 893         struct e1000_adapter *adapter = netdev_priv(netdev);
 894
 895         adapter->test_icr |= E1000_READ_REG(&adapter->hw, ICR);
 896
 897         return IRQ_HANDLED;
 898 }
 899
 900 static int
 901 e1000_intr_test(struct e1000_adapter *adapter, uint64_t *data)
 902 {
 903         struct net_device *netdev = adapter->netdev;
 904         uint32_t mask, i=0, shared_int = TRUE;
 905         uint32_t irq = adapter->pdev->irq;
 906
 907         *data = 0;
 908
 909         /* NOTE: we don't test MSI interrupts here, yet */
 910         /* Hook up test interrupt handler just for this test */
 911         if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 912                          netdev))
 913                 shared_int = FALSE;
 914         else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
 915                  netdev->name, netdev)) {
 916                 *data = 1;
 917                 return -1;
 918         }
 919         DPRINTK(HW, INFO, "testing %s interrupt\n",
 920                 (shared_int ? "shared" : "unshared"));
 921
 922         /* Disable all the interrupts */
 923         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 924         msleep(10);
 925
 926         /* Test each interrupt */
 927         for (; i < 10; i++) {
 928
 929                 if (adapter->hw.mac_type == e1000_ich8lan && i == 8)
 930                         continue;
 931
 932                 /* Interrupt to test */
 933                 mask = 1 << i;
 934
 935                 if (!shared_int) {
 936                         /* Disable the interrupt to be reported in
 937                          * the cause register and then force the same
 938                          * interrupt and see if one gets posted.  If
 939                          * an interrupt was posted to the bus, the
 940                          * test failed.
 941                          */
 942                         adapter->test_icr = 0;
 943                         E1000_WRITE_REG(&adapter->hw, IMC, mask);
 944                         E1000_WRITE_REG(&adapter->hw, ICS, mask);
 945                         msleep(10);
 946
 947                         if (adapter->test_icr & mask) {
 948                                 *data = 3;
 949                                 break;
 950                         }
 951                 }
 952
 953                 /* Enable the interrupt to be reported in
 954                  * the cause register and then force the same
 955                  * interrupt and see if one gets posted.  If
 956                  * an interrupt was not posted to the bus, the
 957                  * test failed.
 958                  */
 959                 adapter->test_icr = 0;
 960                 E1000_WRITE_REG(&adapter->hw, IMS, mask);
 961                 E1000_WRITE_REG(&adapter->hw, ICS, mask);
 962                 msleep(10);
 963
 964                 if (!(adapter->test_icr & mask)) {
 965                         *data = 4;
 966                         break;
 967                 }
 968
 969                 if (!shared_int) {
 970                         /* Disable the other interrupts to be reported in
 971                          * the cause register and then force the other
 972                          * interrupts and see if any get posted.  If
 973                          * an interrupt was posted to the bus, the
 974                          * test failed.
 975                          */
 976                         adapter->test_icr = 0;
 977                         E1000_WRITE_REG(&adapter->hw, IMC, ~mask & 0x00007FFF);
 978                         E1000_WRITE_REG(&adapter->hw, ICS, ~mask & 0x00007FFF);
 979                         msleep(10);
 980
 981                         if (adapter->test_icr) {
 982                                 *data = 5;
 983                                 break;
 984                         }
 985                 }
 986         }
 987
 988         /* Disable all the interrupts */
 989         E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF);
 990         msleep(10);
 991
 992         /* Unhook test interrupt handler */
 993         free_irq(irq, netdev);
 994
 995         return *data;
 996 }
 997
 998 static void
 999 e1000_free_desc_rings(struct e1000_adapter *adapter)
1000 {
1001         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1002         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1003         struct pci_dev *pdev = adapter->pdev;
1004         int i;
1005
1006         if (txdr->desc && txdr->buffer_info) {
1007                 for (i = 0; i < txdr->count; i++) {
1008                         if (txdr->buffer_info[i].dma)
1009                                 pci_unmap_single(pdev, txdr->buffer_info[i].dma,
1010                                                  txdr->buffer_info[i].length,
1011                                                  PCI_DMA_TODEVICE);
1012                         if (txdr->buffer_info[i].skb)
1013                                 dev_kfree_skb(txdr->buffer_info[i].skb);
1014                 }
1015         }
1016
1017         if (rxdr->desc && rxdr->buffer_info) {
1018                 for (i = 0; i < rxdr->count; i++) {
1019                         if (rxdr->buffer_info[i].dma)
1020                                 pci_unmap_single(pdev, rxdr->buffer_info[i].dma,
1021                                                  rxdr->buffer_info[i].length,
1022                                                  PCI_DMA_FROMDEVICE);
1023                         if (rxdr->buffer_info[i].skb)
1024                                 dev_kfree_skb(rxdr->buffer_info[i].skb);
1025                 }
1026         }
1027
1028         if (txdr->desc) {
1029                 pci_free_consistent(pdev, txdr->size, txdr->desc, txdr->dma);
1030                 txdr->desc = NULL;
1031         }
1032         if (rxdr->desc) {
1033                 pci_free_consistent(pdev, rxdr->size, rxdr->desc, rxdr->dma);
1034                 rxdr->desc = NULL;
1035         }
1036
1037         kfree(txdr->buffer_info);
1038         txdr->buffer_info = NULL;
1039         kfree(rxdr->buffer_info);
1040         rxdr->buffer_info = NULL;
1041
1042         return;
1043 }
1044
1045 static int
1046 e1000_setup_desc_rings(struct e1000_adapter *adapter)
1047 {
1048         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1049         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1050         struct pci_dev *pdev = adapter->pdev;
1051         uint32_t rctl;
1052         int i, ret_val;
1053
1054         /* Setup Tx descriptor ring and Tx buffers */
1055
1056         if (!txdr->count)
1057                 txdr->count = E1000_DEFAULT_TXD;
1058
1059         if (!(txdr->buffer_info = kcalloc(txdr->count,
1060                                           sizeof(struct e1000_buffer),
1061                                           GFP_KERNEL))) {
1062                 ret_val = 1;
1063                 goto err_nomem;
1064         }
1065
1066         txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
1067         txdr->size = ALIGN(txdr->size, 4096);
1068         if (!(txdr->desc = pci_alloc_consistent(pdev, txdr->size,
1069                                                 &txdr->dma))) {
1070                 ret_val = 2;
1071                 goto err_nomem;
1072         }
1073         memset(txdr->desc, 0, txdr->size);
1074         txdr->next_to_use = txdr->next_to_clean = 0;
1075
1076         E1000_WRITE_REG(&adapter->hw, TDBAL,
1077                         ((uint64_t) txdr->dma & 0x00000000FFFFFFFF));
1078         E1000_WRITE_REG(&adapter->hw, TDBAH, ((uint64_t) txdr->dma >> 32));
1079         E1000_WRITE_REG(&adapter->hw, TDLEN,
1080                         txdr->count * sizeof(struct e1000_tx_desc));
1081         E1000_WRITE_REG(&adapter->hw, TDH, 0);
1082         E1000_WRITE_REG(&adapter->hw, TDT, 0);
1083         E1000_WRITE_REG(&adapter->hw, TCTL,
1084                         E1000_TCTL_PSP | E1000_TCTL_EN |
1085                         E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1086                         E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1087
1088         for (i = 0; i < txdr->count; i++) {
1089                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
1090                 struct sk_buff *skb;
1091                 unsigned int size = 1024;
1092
1093                 if (!(skb = alloc_skb(size, GFP_KERNEL))) {
1094                         ret_val = 3;
1095                         goto err_nomem;
1096                 }
1097                 skb_put(skb, size);
1098                 txdr->buffer_info[i].skb = skb;
1099                 txdr->buffer_info[i].length = skb->len;
1100                 txdr->buffer_info[i].dma =
1101                         pci_map_single(pdev, skb->data, skb->len,
1102                                        PCI_DMA_TODEVICE);
1103                 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);
1104                 tx_desc->lower.data = cpu_to_le32(skb->len);
1105                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1106                                                    E1000_TXD_CMD_IFCS |
1107                                                    E1000_TXD_CMD_RPS);
1108                 tx_desc->upper.data = 0;
1109         }
1110
1111         /* Setup Rx descriptor ring and Rx buffers */
1112
1113         if (!rxdr->count)
1114                 rxdr->count = E1000_DEFAULT_RXD;
1115
1116         if (!(rxdr->buffer_info = kcalloc(rxdr->count,
1117                                           sizeof(struct e1000_buffer),
1118                                           GFP_KERNEL))) {
1119                 ret_val = 4;
1120                 goto err_nomem;
1121         }
1122
1123         rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
1124         if (!(rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma))) {
1125                 ret_val = 5;
1126                 goto err_nomem;
1127         }
1128         memset(rxdr->desc, 0, rxdr->size);
1129         rxdr->next_to_use = rxdr->next_to_clean = 0;
1130
1131         rctl = E1000_READ_REG(&adapter->hw, RCTL);
1132         E1000_WRITE_REG(&adapter->hw, RCTL, rctl & ~E1000_RCTL_EN);
1133         E1000_WRITE_REG(&adapter->hw, RDBAL,
1134                         ((uint64_t) rxdr->dma & 0xFFFFFFFF));
1135         E1000_WRITE_REG(&adapter->hw, RDBAH, ((uint64_t) rxdr->dma >> 32));
1136         E1000_WRITE_REG(&adapter->hw, RDLEN, rxdr->size);
1137         E1000_WRITE_REG(&adapter->hw, RDH, 0);
1138         E1000_WRITE_REG(&adapter->hw, RDT, 0);
1139         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1140                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1141                 (adapter->hw.mc_filter_type << E1000_RCTL_MO_SHIFT);
1142         E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
1143
1144         for (i = 0; i < rxdr->count; i++) {
1145                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
1146                 struct sk_buff *skb;
1147
1148                 if (!(skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN,
1149                                 GFP_KERNEL))) {
1150                         ret_val = 6;
1151                         goto err_nomem;
1152                 }
1153                 skb_reserve(skb, NET_IP_ALIGN);
1154                 rxdr->buffer_info[i].skb = skb;
1155                 rxdr->buffer_info[i].length = E1000_RXBUFFER_2048;
1156                 rxdr->buffer_info[i].dma =
1157                         pci_map_single(pdev, skb->data, E1000_RXBUFFER_2048,
1158                                        PCI_DMA_FROMDEVICE);
1159                 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);
1160                 memset(skb->data, 0x00, skb->len);
1161         }
1162
1163         return 0;
1164
1165 err_nomem:
1166         e1000_free_desc_rings(adapter);
1167         return ret_val;
1168 }
1169
1170 static void
1171 e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1172 {
1173         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1174         e1000_write_phy_reg(&adapter->hw, 29, 0x001F);
1175         e1000_write_phy_reg(&adapter->hw, 30, 0x8FFC);
1176         e1000_write_phy_reg(&adapter->hw, 29, 0x001A);
1177         e1000_write_phy_reg(&adapter->hw, 30, 0x8FF0);
1178 }
1179
1180 static void
1181 e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
1182 {
1183         uint16_t phy_reg;
1184
1185         /* Because we reset the PHY above, we need to re-force TX_CLK in the
1186          * Extended PHY Specific Control Register to 25MHz clock.  This
1187          * value defaults back to a 2.5MHz clock when the PHY is reset.
1188          */
1189         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1190         phy_reg |= M88E1000_EPSCR_TX_CLK_25;
1191         e1000_write_phy_reg(&adapter->hw,
1192                 M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
1193
1194         /* In addition, because of the s/w reset above, we need to enable
1195          * CRS on TX.  This must be set for both full and half duplex
1196          * operation.
1197          */
1198         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1199         phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
1200         e1000_write_phy_reg(&adapter->hw,
1201                 M88E1000_PHY_SPEC_CTRL, phy_reg);
1202 }
1203
1204 static int
1205 e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
1206 {
1207         uint32_t ctrl_reg;
1208         uint16_t phy_reg;
1209
1210         /* Setup the Device Control Register for PHY loopback test. */
1211
1212         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1213         ctrl_reg |= (E1000_CTRL_ILOS |          /* Invert Loss-Of-Signal */
1214                      E1000_CTRL_FRCSPD |        /* Set the Force Speed Bit */
1215                      E1000_CTRL_FRCDPX |        /* Set the Force Duplex Bit */
1216                      E1000_CTRL_SPD_1000 |      /* Force Speed to 1000 */
1217                      E1000_CTRL_FD);            /* Force Duplex to FULL */
1218
1219         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1220
1221         /* Read the PHY Specific Control Register (0x10) */
1222         e1000_read_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1223
1224         /* Clear Auto-Crossover bits in PHY Specific Control Register
1225          * (bits 6:5).
1226          */
1227         phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
1228         e1000_write_phy_reg(&adapter->hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
1229
1230         /* Perform software reset on the PHY */
1231         e1000_phy_reset(&adapter->hw);
1232
1233         /* Have to setup TX_CLK and TX_CRS after software reset */
1234         e1000_phy_reset_clk_and_crs(adapter);
1235
1236         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8100);
1237
1238         /* Wait for reset to complete. */
1239         udelay(500);
1240
1241         /* Have to setup TX_CLK and TX_CRS after software reset */
1242         e1000_phy_reset_clk_and_crs(adapter);
1243
1244         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1245         e1000_phy_disable_receiver(adapter);
1246
1247         /* Set the loopback bit in the PHY control register. */
1248         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1249         phy_reg |= MII_CR_LOOPBACK;
1250         e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1251
1252         /* Setup TX_CLK and TX_CRS one more time. */
1253         e1000_phy_reset_clk_and_crs(adapter);
1254
1255         /* Check Phy Configuration */
1256         e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1257         if (phy_reg != 0x4100)
1258                  return 9;
1259
1260         e1000_read_phy_reg(&adapter->hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1261         if (phy_reg != 0x0070)
1262                 return 10;
1263
1264         e1000_read_phy_reg(&adapter->hw, 29, &phy_reg);
1265         if (phy_reg != 0x001A)
1266                 return 11;
1267
1268         return 0;
1269 }
1270
1271 static int
1272 e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1273 {
1274         uint32_t ctrl_reg = 0;
1275         uint32_t stat_reg = 0;
1276
1277         adapter->hw.autoneg = FALSE;
1278
1279         if (adapter->hw.phy_type == e1000_phy_m88) {
1280                 /* Auto-MDI/MDIX Off */
1281                 e1000_write_phy_reg(&adapter->hw,
1282                                     M88E1000_PHY_SPEC_CTRL, 0x0808);
1283                 /* reset to update Auto-MDI/MDIX */
1284                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x9140);
1285                 /* autoneg off */
1286                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x8140);
1287         } else if (adapter->hw.phy_type == e1000_phy_gg82563)
1288                 e1000_write_phy_reg(&adapter->hw,
1289                                     GG82563_PHY_KMRN_MODE_CTRL,
1290                                     0x1CC);
1291
1292         ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1293
1294         if (adapter->hw.phy_type == e1000_phy_ife) {
1295                 /* force 100, set loopback */
1296                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x6100);
1297
1298                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1299                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1300                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1301                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1302                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1303                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1304         } else {
1305                 /* force 1000, set loopback */
1306                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, 0x4140);
1307
1308                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1309                 ctrl_reg = E1000_READ_REG(&adapter->hw, CTRL);
1310                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1311                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1312                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1313                              E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1314                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1315         }
1316
1317         if (adapter->hw.media_type == e1000_media_type_copper &&
1318            adapter->hw.phy_type == e1000_phy_m88)
1319                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1320         else {
1321                 /* Set the ILOS bit on the fiber Nic is half
1322                  * duplex link is detected. */
1323                 stat_reg = E1000_READ_REG(&adapter->hw, STATUS);
1324                 if ((stat_reg & E1000_STATUS_FD) == 0)
1325                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1326         }
1327
1328         E1000_WRITE_REG(&adapter->hw, CTRL, ctrl_reg);
1329
1330         /* Disable the receiver on the PHY so when a cable is plugged in, the
1331          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1332          */
1333         if (adapter->hw.phy_type == e1000_phy_m88)
1334                 e1000_phy_disable_receiver(adapter);
1335
1336         udelay(500);
1337
1338         return 0;
1339 }
1340
1341 static int
1342 e1000_set_phy_loopback(struct e1000_adapter *adapter)
1343 {
1344         uint16_t phy_reg = 0;
1345         uint16_t count = 0;
1346
1347         switch (adapter->hw.mac_type) {
1348         case e1000_82543:
1349                 if (adapter->hw.media_type == e1000_media_type_copper) {
1350                         /* Attempt to setup Loopback mode on Non-integrated PHY.
1351                          * Some PHY registers get corrupted at random, so
1352                          * attempt this 10 times.
1353                          */
1354                         while (e1000_nonintegrated_phy_loopback(adapter) &&
1355                               count++ < 10);
1356                         if (count < 11)
1357                                 return 0;
1358                 }
1359                 break;
1360
1361         case e1000_82544:
1362         case e1000_82540:
1363         case e1000_82545:
1364         case e1000_82545_rev_3:
1365         case e1000_82546:
1366         case e1000_82546_rev_3:
1367         case e1000_82541:
1368         case e1000_82541_rev_2:
1369         case e1000_82547:
1370         case e1000_82547_rev_2:
1371         case e1000_82571:
1372         case e1000_82572:
1373         case e1000_82573:
1374         case e1000_80003es2lan:
1375         case e1000_ich8lan:
1376                 return e1000_integrated_phy_loopback(adapter);
1377                 break;
1378
1379         default:
1380                 /* Default PHY loopback work is to read the MII
1381                  * control register and assert bit 14 (loopback mode).
1382                  */
1383                 e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
1384                 phy_reg |= MII_CR_LOOPBACK;
1385                 e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
1386                 return 0;
1387                 break;
1388         }
1389
1390         return 8;
1391 }
1392
1393 static int
1394 e1000_setup_loopback_test(struct e1000_adapter *adapter)
1395 {
1396         struct e1000_hw *hw = &adapter->hw;
1397         uint32_t rctl;
1398
1399         if (hw->media_type == e1000_media_type_fiber ||
1400             hw->media_type == e1000_media_type_internal_serdes) {
1401                 switch (hw->mac_type) {
1402                 case e1000_82545:
1403                 case e1000_82546:
1404                 case e1000_82545_rev_3:
1405                 case e1000_82546_rev_3:
1406                         return e1000_set_phy_loopback(adapter);
1407                         break;
1408                 case e1000_82571:
1409                 case e1000_82572:
1410 #define E1000_SERDES_LB_ON 0x410
1411                         e1000_set_phy_loopback(adapter);
1412                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_ON);
1413                         msleep(10);
1414                         return 0;
1415                         break;
1416                 default:
1417                         rctl = E1000_READ_REG(hw, RCTL);
1418                         rctl |= E1000_RCTL_LBM_TCVR;
1419                         E1000_WRITE_REG(hw, RCTL, rctl);
1420                         return 0;
1421                 }
1422         } else if (hw->media_type == e1000_media_type_copper)
1423                 return e1000_set_phy_loopback(adapter);
1424
1425         return 7;
1426 }
1427
1428 static void
1429 e1000_loopback_cleanup(struct e1000_adapter *adapter)
1430 {
1431         struct e1000_hw *hw = &adapter->hw;
1432         uint32_t rctl;
1433         uint16_t phy_reg;
1434
1435         rctl = E1000_READ_REG(hw, RCTL);
1436         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1437         E1000_WRITE_REG(hw, RCTL, rctl);
1438
1439         switch (hw->mac_type) {
1440         case e1000_82571:
1441         case e1000_82572:
1442                 if (hw->media_type == e1000_media_type_fiber ||
1443                     hw->media_type == e1000_media_type_internal_serdes) {
1444 #define E1000_SERDES_LB_OFF 0x400
1445                         E1000_WRITE_REG(hw, SCTL, E1000_SERDES_LB_OFF);
1446                         msleep(10);
1447                         break;
1448                 }
1449                 /* Fall Through */
1450         case e1000_82545:
1451         case e1000_82546:
1452         case e1000_82545_rev_3:
1453         case e1000_82546_rev_3:
1454         default:
1455                 hw->autoneg = TRUE;
1456                 if (hw->phy_type == e1000_phy_gg82563)
1457                         e1000_write_phy_reg(hw,
1458                                             GG82563_PHY_KMRN_MODE_CTRL,
1459                                             0x180);
1460                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1461                 if (phy_reg & MII_CR_LOOPBACK) {
1462                         phy_reg &= ~MII_CR_LOOPBACK;
1463                         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1464                         e1000_phy_reset(hw);
1465                 }
1466                 break;
1467         }
1468 }
1469
1470 static void
1471 e1000_create_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1472 {
1473         memset(skb->data, 0xFF, frame_size);
1474         frame_size &= ~1;
1475         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1476         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1477         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1478 }
1479
1480 static int
1481 e1000_check_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
1482 {
1483         frame_size &= ~1;
1484         if (*(skb->data + 3) == 0xFF) {
1485                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1486                    (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
1487                         return 0;
1488                 }
1489         }
1490         return 13;
1491 }
1492
1493 static int
1494 e1000_run_loopback_test(struct e1000_adapter *adapter)
1495 {
1496         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1497         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1498         struct pci_dev *pdev = adapter->pdev;
1499         int i, j, k, l, lc, good_cnt, ret_val=0;
1500         unsigned long time;
1501
1502         E1000_WRITE_REG(&adapter->hw, RDT, rxdr->count - 1);
1503
1504         /* Calculate the loop count based on the largest descriptor ring
1505          * The idea is to wrap the largest ring a number of times using 64
1506          * send/receive pairs during each loop
1507          */
1508
1509         if (rxdr->count <= txdr->count)
1510                 lc = ((txdr->count / 64) * 2) + 1;
1511         else
1512                 lc = ((rxdr->count / 64) * 2) + 1;
1513
1514         k = l = 0;
1515         for (j = 0; j <= lc; j++) { /* loop count loop */
1516                 for (i = 0; i < 64; i++) { /* send the packets */
1517                         e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
1518                                         1024);
1519                         pci_dma_sync_single_for_device(pdev,
1520                                         txdr->buffer_info[k].dma,
1521                                         txdr->buffer_info[k].length,
1522                                         PCI_DMA_TODEVICE);
1523                         if (unlikely(++k == txdr->count)) k = 0;
1524                 }
1525                 E1000_WRITE_REG(&adapter->hw, TDT, k);
1526                 msleep(200);
1527                 time = jiffies; /* set the start time for the receive */
1528                 good_cnt = 0;
1529                 do { /* receive the sent packets */
1530                         pci_dma_sync_single_for_cpu(pdev,
1531                                         rxdr->buffer_info[l].dma,
1532                                         rxdr->buffer_info[l].length,
1533                                         PCI_DMA_FROMDEVICE);
1534
1535                         ret_val = e1000_check_lbtest_frame(
1536                                         rxdr->buffer_info[l].skb,
1537                                         1024);
1538                         if (!ret_val)
1539                                 good_cnt++;
1540                         if (unlikely(++l == rxdr->count)) l = 0;
1541                         /* time + 20 msecs (200 msecs on 2.4) is more than
1542                          * enough time to complete the receives, if it's
1543                          * exceeded, break and error off
1544                          */
1545                 } while (good_cnt < 64 && jiffies < (time + 20));
1546                 if (good_cnt != 64) {
1547                         ret_val = 13; /* ret_val is the same as mis-compare */
1548                         break;
1549                 }
1550                 if (jiffies >= (time + 2)) {
1551                         ret_val = 14; /* error code for time out error */
1552                         break;
1553                 }
1554         } /* end loop count loop */
1555         return ret_val;
1556 }
1557
1558 static int
1559 e1000_loopback_test(struct e1000_adapter *adapter, uint64_t *data)
1560 {
1561         /* PHY loopback cannot be performed if SoL/IDER
1562          * sessions are active */
1563         if (e1000_check_phy_reset_block(&adapter->hw)) {
1564                 DPRINTK(DRV, ERR, "Cannot do PHY loopback test "
1565                         "when SoL/IDER is active.\n");
1566                 *data = 0;
1567                 goto out;
1568         }
1569
1570         if ((*data = e1000_setup_desc_rings(adapter)))
1571                 goto out;
1572         if ((*data = e1000_setup_loopback_test(adapter)))
1573                 goto err_loopback;
1574         *data = e1000_run_loopback_test(adapter);
1575         e1000_loopback_cleanup(adapter);
1576
1577 err_loopback:
1578         e1000_free_desc_rings(adapter);
1579 out:
1580         return *data;
1581 }
1582
1583 static int
1584 e1000_link_test(struct e1000_adapter *adapter, uint64_t *data)
1585 {
1586         *data = 0;
1587         if (adapter->hw.media_type == e1000_media_type_internal_serdes) {
1588                 int i = 0;
1589                 adapter->hw.serdes_link_down = TRUE;
1590
1591                 /* On some blade server designs, link establishment
1592                  * could take as long as 2-3 minutes */
1593                 do {
1594                         e1000_check_for_link(&adapter->hw);
1595                         if (adapter->hw.serdes_link_down == FALSE)
1596                                 return *data;
1597                         msleep(20);
1598                 } while (i++ < 3750);
1599
1600                 *data = 1;
1601         } else {
1602                 e1000_check_for_link(&adapter->hw);
1603                 if (adapter->hw.autoneg)  /* if auto_neg is set wait for it */
1604                         msleep(4000);
1605
1606                 if (!(E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU)) {
1607                         *data = 1;
1608                 }
1609         }
1610         return *data;
1611 }
1612
1613 static int
1614 e1000_diag_test_count(struct net_device *netdev)
1615 {
1616         return E1000_TEST_LEN;
1617 }
1618
1619 extern void e1000_power_up_phy(struct e1000_adapter *);
1620
1621 static void
1622 e1000_diag_test(struct net_device *netdev,
1623                    struct ethtool_test *eth_test, uint64_t *data)
1624 {
1625         struct e1000_adapter *adapter = netdev_priv(netdev);
1626         boolean_t if_running = netif_running(netdev);
1627
1628         set_bit(__E1000_TESTING, &adapter->flags);
1629         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1630                 /* Offline tests */
1631
1632                 /* save speed, duplex, autoneg settings */
1633                 uint16_t autoneg_advertised = adapter->hw.autoneg_advertised;
1634                 uint8_t forced_speed_duplex = adapter->hw.forced_speed_duplex;
1635                 uint8_t autoneg = adapter->hw.autoneg;
1636
1637                 DPRINTK(HW, INFO, "offline testing starting\n");
1638
1639                 /* Link test performed before hardware reset so autoneg doesn't
1640                  * interfere with test result */
1641                 if (e1000_link_test(adapter, &data[4]))
1642                         eth_test->flags |= ETH_TEST_FL_FAILED;
1643
1644                 if (if_running)
1645                         /* indicate we're in test mode */
1646                         dev_close(netdev);
1647                 else
1648                         e1000_reset(adapter);
1649
1650                 if (e1000_reg_test(adapter, &data[0]))
1651                         eth_test->flags |= ETH_TEST_FL_FAILED;
1652
1653                 e1000_reset(adapter);
1654                 if (e1000_eeprom_test(adapter, &data[1]))
1655                         eth_test->flags |= ETH_TEST_FL_FAILED;
1656
1657                 e1000_reset(adapter);
1658                 if (e1000_intr_test(adapter, &data[2]))
1659                         eth_test->flags |= ETH_TEST_FL_FAILED;
1660
1661                 e1000_reset(adapter);
1662                 /* make sure the phy is powered up */
1663                 e1000_power_up_phy(adapter);
1664                 if (e1000_loopback_test(adapter, &data[3]))
1665                         eth_test->flags |= ETH_TEST_FL_FAILED;
1666
1667                 /* restore speed, duplex, autoneg settings */
1668                 adapter->hw.autoneg_advertised = autoneg_advertised;
1669                 adapter->hw.forced_speed_duplex = forced_speed_duplex;
1670                 adapter->hw.autoneg = autoneg;
1671
1672                 e1000_reset(adapter);
1673                 clear_bit(__E1000_TESTING, &adapter->flags);
1674                 if (if_running)
1675                         dev_open(netdev);
1676         } else {
1677                 DPRINTK(HW, INFO, "online testing starting\n");
1678                 /* Online tests */
1679                 if (e1000_link_test(adapter, &data[4]))
1680                         eth_test->flags |= ETH_TEST_FL_FAILED;
1681
1682                 /* Online tests aren't run; pass by default */
1683                 data[0] = 0;
1684                 data[1] = 0;
1685                 data[2] = 0;
1686                 data[3] = 0;
1687
1688                 clear_bit(__E1000_TESTING, &adapter->flags);
1689         }
1690         msleep_interruptible(4 * 1000);
1691 }
1692
1693 static int e1000_wol_exclusion(struct e1000_adapter *adapter, struct ethtool_wolinfo *wol)
1694 {
1695         struct e1000_hw *hw = &adapter->hw;
1696         int retval = 1; /* fail by default */
1697
1698         switch (hw->device_id) {
1699         case E1000_DEV_ID_82542:
1700         case E1000_DEV_ID_82543GC_FIBER:
1701         case E1000_DEV_ID_82543GC_COPPER:
1702         case E1000_DEV_ID_82544EI_FIBER:
1703         case E1000_DEV_ID_82546EB_QUAD_COPPER:
1704         case E1000_DEV_ID_82545EM_FIBER:
1705         case E1000_DEV_ID_82545EM_COPPER:
1706         case E1000_DEV_ID_82546GB_QUAD_COPPER:
1707         case E1000_DEV_ID_82546GB_PCIE:
1708         case E1000_DEV_ID_82571EB_SERDES_QUAD:
1709                 /* these don't support WoL at all */
1710                 wol->supported = 0;
1711                 break;
1712         case E1000_DEV_ID_82546EB_FIBER:
1713         case E1000_DEV_ID_82546GB_FIBER:
1714         case E1000_DEV_ID_82571EB_FIBER:
1715         case E1000_DEV_ID_82571EB_SERDES:
1716         case E1000_DEV_ID_82571EB_COPPER:
1717                 /* Wake events not supported on port B */
1718                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) {
1719                         wol->supported = 0;
1720                         break;
1721                 }
1722                 /* return success for non excluded adapter ports */
1723                 retval = 0;
1724                 break;
1725         case E1000_DEV_ID_82571EB_QUAD_COPPER:
1726         case E1000_DEV_ID_82571EB_QUAD_FIBER:
1727         case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
1728         case E1000_DEV_ID_82571PT_QUAD_COPPER:
1729         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1730                 /* quad port adapters only support WoL on port A */
1731                 if (!adapter->quad_port_a) {
1732                         wol->supported = 0;
1733                         break;
1734                 }
1735                 /* return success for non excluded adapter ports */
1736                 retval = 0;
1737                 break;
1738         default:
1739                 /* dual port cards only support WoL on port A from now on
1740                  * unless it was enabled in the eeprom for port B
1741                  * so exclude FUNC_1 ports from having WoL enabled */
1742                 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1 &&
1743                     !adapter->eeprom_wol) {
1744                         wol->supported = 0;
1745                         break;
1746                 }
1747
1748                 retval = 0;
1749         }
1750
1751         return retval;
1752 }
1753
1754 static void
1755 e1000_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1756 {
1757         struct e1000_adapter *adapter = netdev_priv(netdev);
1758
1759         wol->supported = WAKE_UCAST | WAKE_MCAST |
1760                          WAKE_BCAST | WAKE_MAGIC;
1761         wol->wolopts = 0;
1762
1763         /* this function will set ->supported = 0 and return 1 if wol is not
1764          * supported by this hardware */
1765         if (e1000_wol_exclusion(adapter, wol))
1766                 return;
1767
1768         /* apply any specific unsupported masks here */
1769         switch (adapter->hw.device_id) {
1770         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1771                 /* KSP3 does not suppport UCAST wake-ups */
1772                 wol->supported &= ~WAKE_UCAST;
1773
1774                 if (adapter->wol & E1000_WUFC_EX)
1775                         DPRINTK(DRV, ERR, "Interface does not support "
1776                         "directed (unicast) frame wake-up packets\n");
1777                 break;
1778         default:
1779                 break;
1780         }
1781
1782         if (adapter->wol & E1000_WUFC_EX)
1783                 wol->wolopts |= WAKE_UCAST;
1784         if (adapter->wol & E1000_WUFC_MC)
1785                 wol->wolopts |= WAKE_MCAST;
1786         if (adapter->wol & E1000_WUFC_BC)
1787                 wol->wolopts |= WAKE_BCAST;
1788         if (adapter->wol & E1000_WUFC_MAG)
1789                 wol->wolopts |= WAKE_MAGIC;
1790
1791         return;
1792 }
1793
1794 static int
1795 e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1796 {
1797         struct e1000_adapter *adapter = netdev_priv(netdev);
1798         struct e1000_hw *hw = &adapter->hw;
1799
1800         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
1801                 return -EOPNOTSUPP;
1802
1803         if (e1000_wol_exclusion(adapter, wol))
1804                 return wol->wolopts ? -EOPNOTSUPP : 0;
1805
1806         switch (hw->device_id) {
1807         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1808                 if (wol->wolopts & WAKE_UCAST) {
1809                         DPRINTK(DRV, ERR, "Interface does not support "
1810                         "directed (unicast) frame wake-up packets\n");
1811                         return -EOPNOTSUPP;
1812                 }
1813                 break;
1814         default:
1815                 break;
1816         }
1817
1818         /* these settings will always override what we currently have */
1819         adapter->wol = 0;
1820
1821         if (wol->wolopts & WAKE_UCAST)
1822                 adapter->wol |= E1000_WUFC_EX;
1823         if (wol->wolopts & WAKE_MCAST)
1824                 adapter->wol |= E1000_WUFC_MC;
1825         if (wol->wolopts & WAKE_BCAST)
1826                 adapter->wol |= E1000_WUFC_BC;
1827         if (wol->wolopts & WAKE_MAGIC)
1828                 adapter->wol |= E1000_WUFC_MAG;
1829
1830         return 0;
1831 }
1832
1833 /* toggle LED 4 times per second = 2 "blinks" per second */
1834 #define E1000_ID_INTERVAL       (HZ/4)
1835
1836 /* bit defines for adapter->led_status */
1837 #define E1000_LED_ON            0
1838
1839 static void
1840 e1000_led_blink_callback(unsigned long data)
1841 {
1842         struct e1000_adapter *adapter = (struct e1000_adapter *) data;
1843
1844         if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
1845                 e1000_led_off(&adapter->hw);
1846         else
1847                 e1000_led_on(&adapter->hw);
1848
1849         mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
1850 }
1851
1852 static int
1853 e1000_phys_id(struct net_device *netdev, uint32_t data)
1854 {
1855         struct e1000_adapter *adapter = netdev_priv(netdev);
1856
1857         if (!data || data > (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ))
1858                 data = (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ);
1859
1860         if (adapter->hw.mac_type < e1000_82571) {
1861                 if (!adapter->blink_timer.function) {
1862                         init_timer(&adapter->blink_timer);
1863                         adapter->blink_timer.function = e1000_led_blink_callback;
1864                         adapter->blink_timer.data = (unsigned long) adapter;
1865                 }
1866                 e1000_setup_led(&adapter->hw);
1867                 mod_timer(&adapter->blink_timer, jiffies);
1868                 msleep_interruptible(data * 1000);
1869                 del_timer_sync(&adapter->blink_timer);
1870         } else if (adapter->hw.phy_type == e1000_phy_ife) {
1871                 if (!adapter->blink_timer.function) {
1872                         init_timer(&adapter->blink_timer);
1873                         adapter->blink_timer.function = e1000_led_blink_callback;
1874                         adapter->blink_timer.data = (unsigned long) adapter;
1875                 }
1876                 mod_timer(&adapter->blink_timer, jiffies);
1877                 msleep_interruptible(data * 1000);
1878                 del_timer_sync(&adapter->blink_timer);
1879                 e1000_write_phy_reg(&(adapter->hw), IFE_PHY_SPECIAL_CONTROL_LED, 0);
1880         } else {
1881                 e1000_blink_led_start(&adapter->hw);
1882                 msleep_interruptible(data * 1000);
1883         }
1884
1885         e1000_led_off(&adapter->hw);
1886         clear_bit(E1000_LED_ON, &adapter->led_status);
1887         e1000_cleanup_led(&adapter->hw);
1888
1889         return 0;
1890 }
1891
1892 static int
1893 e1000_nway_reset(struct net_device *netdev)
1894 {
1895         struct e1000_adapter *adapter = netdev_priv(netdev);
1896         if (netif_running(netdev))
1897                 e1000_reinit_locked(adapter);
1898         return 0;
1899 }
1900
1901 static int
1902 e1000_get_stats_count(struct net_device *netdev)
1903 {
1904         return E1000_STATS_LEN;
1905 }
1906
1907 static void
1908 e1000_get_ethtool_stats(struct net_device *netdev,
1909                 struct ethtool_stats *stats, uint64_t *data)
1910 {
1911         struct e1000_adapter *adapter = netdev_priv(netdev);
1912         int i;
1913
1914         e1000_update_stats(adapter);
1915         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1916                 char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
1917                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1918                         sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
1919         }
1920 /*      BUG_ON(i != E1000_STATS_LEN); */
1921 }
1922
1923 static void
1924 e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
1925 {
1926         uint8_t *p = data;
1927         int i;
1928
1929         switch (stringset) {
1930         case ETH_SS_TEST:
1931                 memcpy(data, *e1000_gstrings_test,
1932                         E1000_TEST_LEN*ETH_GSTRING_LEN);
1933                 break;
1934         case ETH_SS_STATS:
1935                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1936                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1937                                ETH_GSTRING_LEN);
1938                         p += ETH_GSTRING_LEN;
1939                 }
1940 /*              BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
1941                 break;
1942         }
1943 }
1944
1945 static const struct ethtool_ops e1000_ethtool_ops = {
1946         .get_settings           = e1000_get_settings,
1947         .set_settings           = e1000_set_settings,
1948         .get_drvinfo            = e1000_get_drvinfo,
1949         .get_regs_len           = e1000_get_regs_len,
1950         .get_regs               = e1000_get_regs,
1951         .get_wol                = e1000_get_wol,
1952         .set_wol                = e1000_set_wol,
1953         .get_msglevel           = e1000_get_msglevel,
1954         .set_msglevel           = e1000_set_msglevel,
1955         .nway_reset             = e1000_nway_reset,
1956         .get_link               = ethtool_op_get_link,
1957         .get_eeprom_len         = e1000_get_eeprom_len,
1958         .get_eeprom             = e1000_get_eeprom,
1959         .set_eeprom             = e1000_set_eeprom,
1960         .get_ringparam          = e1000_get_ringparam,
1961         .set_ringparam          = e1000_set_ringparam,
1962         .get_pauseparam         = e1000_get_pauseparam,
1963         .set_pauseparam         = e1000_set_pauseparam,
1964         .get_rx_csum            = e1000_get_rx_csum,
1965         .set_rx_csum            = e1000_set_rx_csum,
1966         .get_tx_csum            = e1000_get_tx_csum,
1967         .set_tx_csum            = e1000_set_tx_csum,
1968         .get_sg                 = ethtool_op_get_sg,
1969         .set_sg                 = ethtool_op_set_sg,
1970         .get_tso                = ethtool_op_get_tso,
1971         .set_tso                = e1000_set_tso,
1972         .self_test_count        = e1000_diag_test_count,
1973         .self_test              = e1000_diag_test,
1974         .get_strings            = e1000_get_strings,
1975         .phys_id                = e1000_phys_id,
1976         .get_stats_count        = e1000_get_stats_count,
1977         .get_ethtool_stats      = e1000_get_ethtool_stats,
1978 };
1979
1980 void e1000_set_ethtool_ops(struct net_device *netdev)
1981 {
1982         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
1983 }