drivers/net/e1000/e1000_ethtool.c

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