drivers/net/ethernet/intel/e1000e/ethtool.c

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2011 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 <linux/netdevice.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/pci.h>
  35 #include <linux/slab.h>
  36 #include <linux/delay.h>
  37
  38 #include "e1000.h"
  39
  40 enum {NETDEV_STATS, E1000_STATS};
  41
  42 struct e1000_stats {
  43         char stat_string[ETH_GSTRING_LEN];
  44         int type;
  45         int sizeof_stat;
  46         int stat_offset;
  47 };
  48
  49 #define E1000_STAT(str, m) { \
  50                 .stat_string = str, \
  51                 .type = E1000_STATS, \
  52                 .sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
  53                 .stat_offset = offsetof(struct e1000_adapter, m) }
  54 #define E1000_NETDEV_STAT(str, m) { \
  55                 .stat_string = str, \
  56                 .type = NETDEV_STATS, \
  57                 .sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
  58                 .stat_offset = offsetof(struct rtnl_link_stats64, m) }
  59
  60 static const struct e1000_stats e1000_gstrings_stats[] = {
  61         E1000_STAT("rx_packets", stats.gprc),
  62         E1000_STAT("tx_packets", stats.gptc),
  63         E1000_STAT("rx_bytes", stats.gorc),
  64         E1000_STAT("tx_bytes", stats.gotc),
  65         E1000_STAT("rx_broadcast", stats.bprc),
  66         E1000_STAT("tx_broadcast", stats.bptc),
  67         E1000_STAT("rx_multicast", stats.mprc),
  68         E1000_STAT("tx_multicast", stats.mptc),
  69         E1000_NETDEV_STAT("rx_errors", rx_errors),
  70         E1000_NETDEV_STAT("tx_errors", tx_errors),
  71         E1000_NETDEV_STAT("tx_dropped", tx_dropped),
  72         E1000_STAT("multicast", stats.mprc),
  73         E1000_STAT("collisions", stats.colc),
  74         E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
  75         E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
  76         E1000_STAT("rx_crc_errors", stats.crcerrs),
  77         E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
  78         E1000_STAT("rx_no_buffer_count", stats.rnbc),
  79         E1000_STAT("rx_missed_errors", stats.mpc),
  80         E1000_STAT("tx_aborted_errors", stats.ecol),
  81         E1000_STAT("tx_carrier_errors", stats.tncrs),
  82         E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
  83         E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
  84         E1000_STAT("tx_window_errors", stats.latecol),
  85         E1000_STAT("tx_abort_late_coll", stats.latecol),
  86         E1000_STAT("tx_deferred_ok", stats.dc),
  87         E1000_STAT("tx_single_coll_ok", stats.scc),
  88         E1000_STAT("tx_multi_coll_ok", stats.mcc),
  89         E1000_STAT("tx_timeout_count", tx_timeout_count),
  90         E1000_STAT("tx_restart_queue", restart_queue),
  91         E1000_STAT("rx_long_length_errors", stats.roc),
  92         E1000_STAT("rx_short_length_errors", stats.ruc),
  93         E1000_STAT("rx_align_errors", stats.algnerrc),
  94         E1000_STAT("tx_tcp_seg_good", stats.tsctc),
  95         E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
  96         E1000_STAT("rx_flow_control_xon", stats.xonrxc),
  97         E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
  98         E1000_STAT("tx_flow_control_xon", stats.xontxc),
  99         E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
 100         E1000_STAT("rx_long_byte_count", stats.gorc),
 101         E1000_STAT("rx_csum_offload_good", hw_csum_good),
 102         E1000_STAT("rx_csum_offload_errors", hw_csum_err),
 103         E1000_STAT("rx_header_split", rx_hdr_split),
 104         E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
 105         E1000_STAT("tx_smbus", stats.mgptc),
 106         E1000_STAT("rx_smbus", stats.mgprc),
 107         E1000_STAT("dropped_smbus", stats.mgpdc),
 108         E1000_STAT("rx_dma_failed", rx_dma_failed),
 109         E1000_STAT("tx_dma_failed", tx_dma_failed),
 110 };
 111
 112 #define E1000_GLOBAL_STATS_LEN  ARRAY_SIZE(e1000_gstrings_stats)
 113 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
 114 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 115         "Register test  (offline)", "Eeprom test    (offline)",
 116         "Interrupt test (offline)", "Loopback test  (offline)",
 117         "Link test   (on/offline)"
 118 };
 119 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 120
 121 static int e1000_get_settings(struct net_device *netdev,
 122                               struct ethtool_cmd *ecmd)
 123 {
 124         struct e1000_adapter *adapter = netdev_priv(netdev);
 125         struct e1000_hw *hw = &adapter->hw;
 126         u32 speed;
 127
 128         if (hw->phy.media_type == e1000_media_type_copper) {
 129
 130                 ecmd->supported = (SUPPORTED_10baseT_Half |
 131                                    SUPPORTED_10baseT_Full |
 132                                    SUPPORTED_100baseT_Half |
 133                                    SUPPORTED_100baseT_Full |
 134                                    SUPPORTED_1000baseT_Full |
 135                                    SUPPORTED_Autoneg |
 136                                    SUPPORTED_TP);
 137                 if (hw->phy.type == e1000_phy_ife)
 138                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 139                 ecmd->advertising = ADVERTISED_TP;
 140
 141                 if (hw->mac.autoneg == 1) {
 142                         ecmd->advertising |= ADVERTISED_Autoneg;
 143                         /* the e1000 autoneg seems to match ethtool nicely */
 144                         ecmd->advertising |= hw->phy.autoneg_advertised;
 145                 }
 146
 147                 ecmd->port = PORT_TP;
 148                 ecmd->phy_address = hw->phy.addr;
 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                 ecmd->transceiver = XCVR_EXTERNAL;
 162         }
 163
 164         speed = -1;
 165         ecmd->duplex = -1;
 166
 167         if (netif_running(netdev)) {
 168                 if (netif_carrier_ok(netdev)) {
 169                         speed = adapter->link_speed;
 170                         ecmd->duplex = adapter->link_duplex - 1;
 171                 }
 172         } else {
 173                 u32 status = er32(STATUS);
 174                 if (status & E1000_STATUS_LU) {
 175                         if (status & E1000_STATUS_SPEED_1000)
 176                                 speed = SPEED_1000;
 177                         else if (status & E1000_STATUS_SPEED_100)
 178                                 speed = SPEED_100;
 179                         else
 180                                 speed = SPEED_10;
 181
 182                         if (status & E1000_STATUS_FD)
 183                                 ecmd->duplex = DUPLEX_FULL;
 184                         else
 185                                 ecmd->duplex = DUPLEX_HALF;
 186                 }
 187         }
 188
 189         ethtool_cmd_speed_set(ecmd, speed);
 190         ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 191                          hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 192
 193         /* MDI-X => 2; MDI =>1; Invalid =>0 */
 194         if ((hw->phy.media_type == e1000_media_type_copper) &&
 195             netif_carrier_ok(netdev))
 196                 ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
 197                                                       ETH_TP_MDI;
 198         else
 199                 ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 200
 201         return 0;
 202 }
 203
 204 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 205 {
 206         struct e1000_mac_info *mac = &adapter->hw.mac;
 207
 208         mac->autoneg = 0;
 209
 210         /* Make sure dplx is at most 1 bit and lsb of speed is not set
 211          * for the switch() below to work */
 212         if ((spd & 1) || (dplx & ~1))
 213                 goto err_inval;
 214
 215         /* Fiber NICs only allow 1000 gbps Full duplex */
 216         if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 217             spd != SPEED_1000 &&
 218             dplx != DUPLEX_FULL) {
 219                 goto err_inval;
 220         }
 221
 222         switch (spd + dplx) {
 223         case SPEED_10 + DUPLEX_HALF:
 224                 mac->forced_speed_duplex = ADVERTISE_10_HALF;
 225                 break;
 226         case SPEED_10 + DUPLEX_FULL:
 227                 mac->forced_speed_duplex = ADVERTISE_10_FULL;
 228                 break;
 229         case SPEED_100 + DUPLEX_HALF:
 230                 mac->forced_speed_duplex = ADVERTISE_100_HALF;
 231                 break;
 232         case SPEED_100 + DUPLEX_FULL:
 233                 mac->forced_speed_duplex = ADVERTISE_100_FULL;
 234                 break;
 235         case SPEED_1000 + DUPLEX_FULL:
 236                 mac->autoneg = 1;
 237                 adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 238                 break;
 239         case SPEED_1000 + DUPLEX_HALF: /* not supported */
 240         default:
 241                 goto err_inval;
 242         }
 243         return 0;
 244
 245 err_inval:
 246         e_err("Unsupported Speed/Duplex configuration\n");
 247         return -EINVAL;
 248 }
 249
 250 static int e1000_set_settings(struct net_device *netdev,
 251                               struct ethtool_cmd *ecmd)
 252 {
 253         struct e1000_adapter *adapter = netdev_priv(netdev);
 254         struct e1000_hw *hw = &adapter->hw;
 255
 256         /*
 257          * When SoL/IDER sessions are active, autoneg/speed/duplex
 258          * cannot be changed
 259          */
 260         if (e1000_check_reset_block(hw)) {
 261                 e_err("Cannot change link characteristics when SoL/IDER is "
 262                       "active.\n");
 263                 return -EINVAL;
 264         }
 265
 266         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 267                 usleep_range(1000, 2000);
 268
 269         if (ecmd->autoneg == AUTONEG_ENABLE) {
 270                 hw->mac.autoneg = 1;
 271                 if (hw->phy.media_type == e1000_media_type_fiber)
 272                         hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 273                                                      ADVERTISED_FIBRE |
 274                                                      ADVERTISED_Autoneg;
 275                 else
 276                         hw->phy.autoneg_advertised = ecmd->advertising |
 277                                                      ADVERTISED_TP |
 278                                                      ADVERTISED_Autoneg;
 279                 ecmd->advertising = hw->phy.autoneg_advertised;
 280                 if (adapter->fc_autoneg)
 281                         hw->fc.requested_mode = e1000_fc_default;
 282         } else {
 283                 u32 speed = ethtool_cmd_speed(ecmd);
 284                 if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 285                         clear_bit(__E1000_RESETTING, &adapter->state);
 286                         return -EINVAL;
 287                 }
 288         }
 289
 290         /* reset the link */
 291
 292         if (netif_running(adapter->netdev)) {
 293                 e1000e_down(adapter);
 294                 e1000e_up(adapter);
 295         } else {
 296                 e1000e_reset(adapter);
 297         }
 298
 299         clear_bit(__E1000_RESETTING, &adapter->state);
 300         return 0;
 301 }
 302
 303 static void e1000_get_pauseparam(struct net_device *netdev,
 304                                  struct ethtool_pauseparam *pause)
 305 {
 306         struct e1000_adapter *adapter = netdev_priv(netdev);
 307         struct e1000_hw *hw = &adapter->hw;
 308
 309         pause->autoneg =
 310                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 311
 312         if (hw->fc.current_mode == e1000_fc_rx_pause) {
 313                 pause->rx_pause = 1;
 314         } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 315                 pause->tx_pause = 1;
 316         } else if (hw->fc.current_mode == e1000_fc_full) {
 317                 pause->rx_pause = 1;
 318                 pause->tx_pause = 1;
 319         }
 320 }
 321
 322 static int e1000_set_pauseparam(struct net_device *netdev,
 323                                 struct ethtool_pauseparam *pause)
 324 {
 325         struct e1000_adapter *adapter = netdev_priv(netdev);
 326         struct e1000_hw *hw = &adapter->hw;
 327         int retval = 0;
 328
 329         adapter->fc_autoneg = pause->autoneg;
 330
 331         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 332                 usleep_range(1000, 2000);
 333
 334         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 335                 hw->fc.requested_mode = e1000_fc_default;
 336                 if (netif_running(adapter->netdev)) {
 337                         e1000e_down(adapter);
 338                         e1000e_up(adapter);
 339                 } else {
 340                         e1000e_reset(adapter);
 341                 }
 342         } else {
 343                 if (pause->rx_pause && pause->tx_pause)
 344                         hw->fc.requested_mode = e1000_fc_full;
 345                 else if (pause->rx_pause && !pause->tx_pause)
 346                         hw->fc.requested_mode = e1000_fc_rx_pause;
 347                 else if (!pause->rx_pause && pause->tx_pause)
 348                         hw->fc.requested_mode = e1000_fc_tx_pause;
 349                 else if (!pause->rx_pause && !pause->tx_pause)
 350                         hw->fc.requested_mode = e1000_fc_none;
 351
 352                 hw->fc.current_mode = hw->fc.requested_mode;
 353
 354                 if (hw->phy.media_type == e1000_media_type_fiber) {
 355                         retval = hw->mac.ops.setup_link(hw);
 356                         /* implicit goto out */
 357                 } else {
 358                         retval = e1000e_force_mac_fc(hw);
 359                         if (retval)
 360                                 goto out;
 361                         e1000e_set_fc_watermarks(hw);
 362                 }
 363         }
 364
 365 out:
 366         clear_bit(__E1000_RESETTING, &adapter->state);
 367         return retval;
 368 }
 369
 370 static u32 e1000_get_msglevel(struct net_device *netdev)
 371 {
 372         struct e1000_adapter *adapter = netdev_priv(netdev);
 373         return adapter->msg_enable;
 374 }
 375
 376 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 377 {
 378         struct e1000_adapter *adapter = netdev_priv(netdev);
 379         adapter->msg_enable = data;
 380 }
 381
 382 static int e1000_get_regs_len(struct net_device *netdev)
 383 {
 384 #define E1000_REGS_LEN 32 /* overestimate */
 385         return E1000_REGS_LEN * sizeof(u32);
 386 }
 387
 388 static void e1000_get_regs(struct net_device *netdev,
 389                            struct ethtool_regs *regs, void *p)
 390 {
 391         struct e1000_adapter *adapter = netdev_priv(netdev);
 392         struct e1000_hw *hw = &adapter->hw;
 393         u32 *regs_buff = p;
 394         u16 phy_data;
 395
 396         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 397
 398         regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
 399                         adapter->pdev->device;
 400
 401         regs_buff[0]  = er32(CTRL);
 402         regs_buff[1]  = er32(STATUS);
 403
 404         regs_buff[2]  = er32(RCTL);
 405         regs_buff[3]  = er32(RDLEN);
 406         regs_buff[4]  = er32(RDH);
 407         regs_buff[5]  = er32(RDT);
 408         regs_buff[6]  = er32(RDTR);
 409
 410         regs_buff[7]  = er32(TCTL);
 411         regs_buff[8]  = er32(TDLEN);
 412         regs_buff[9]  = er32(TDH);
 413         regs_buff[10] = er32(TDT);
 414         regs_buff[11] = er32(TIDV);
 415
 416         regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
 417
 418         /* ethtool doesn't use anything past this point, so all this
 419          * code is likely legacy junk for apps that may or may not
 420          * exist */
 421         if (hw->phy.type == e1000_phy_m88) {
 422                 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 423                 regs_buff[13] = (u32)phy_data; /* cable length */
 424                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 425                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 426                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 427                 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 428                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 429                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 430                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 431                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 432                 /* phy receive errors */
 433                 regs_buff[22] = adapter->phy_stats.receive_errors;
 434                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 435         }
 436         regs_buff[21] = 0; /* was idle_errors */
 437         e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);
 438         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 439         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 440 }
 441
 442 static int e1000_get_eeprom_len(struct net_device *netdev)
 443 {
 444         struct e1000_adapter *adapter = netdev_priv(netdev);
 445         return adapter->hw.nvm.word_size * 2;
 446 }
 447
 448 static int e1000_get_eeprom(struct net_device *netdev,
 449                             struct ethtool_eeprom *eeprom, u8 *bytes)
 450 {
 451         struct e1000_adapter *adapter = netdev_priv(netdev);
 452         struct e1000_hw *hw = &adapter->hw;
 453         u16 *eeprom_buff;
 454         int first_word;
 455         int last_word;
 456         int ret_val = 0;
 457         u16 i;
 458
 459         if (eeprom->len == 0)
 460                 return -EINVAL;
 461
 462         eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 463
 464         first_word = eeprom->offset >> 1;
 465         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 466
 467         eeprom_buff = kmalloc(sizeof(u16) *
 468                         (last_word - first_word + 1), GFP_KERNEL);
 469         if (!eeprom_buff)
 470                 return -ENOMEM;
 471
 472         if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 473                 ret_val = e1000_read_nvm(hw, first_word,
 474                                          last_word - first_word + 1,
 475                                          eeprom_buff);
 476         } else {
 477                 for (i = 0; i < last_word - first_word + 1; i++) {
 478                         ret_val = e1000_read_nvm(hw, first_word + i, 1,
 479                                                       &eeprom_buff[i]);
 480                         if (ret_val)
 481                                 break;
 482                 }
 483         }
 484
 485         if (ret_val) {
 486                 /* a read error occurred, throw away the result */
 487                 memset(eeprom_buff, 0xff, sizeof(u16) *
 488                        (last_word - first_word + 1));
 489         } else {
 490                 /* Device's eeprom is always little-endian, word addressable */
 491                 for (i = 0; i < last_word - first_word + 1; i++)
 492                         le16_to_cpus(&eeprom_buff[i]);
 493         }
 494
 495         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 496         kfree(eeprom_buff);
 497
 498         return ret_val;
 499 }
 500
 501 static int e1000_set_eeprom(struct net_device *netdev,
 502                             struct ethtool_eeprom *eeprom, u8 *bytes)
 503 {
 504         struct e1000_adapter *adapter = netdev_priv(netdev);
 505         struct e1000_hw *hw = &adapter->hw;
 506         u16 *eeprom_buff;
 507         void *ptr;
 508         int max_len;
 509         int first_word;
 510         int last_word;
 511         int ret_val = 0;
 512         u16 i;
 513
 514         if (eeprom->len == 0)
 515                 return -EOPNOTSUPP;
 516
 517         if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 518                 return -EFAULT;
 519
 520         if (adapter->flags & FLAG_READ_ONLY_NVM)
 521                 return -EINVAL;
 522
 523         max_len = hw->nvm.word_size * 2;
 524
 525         first_word = eeprom->offset >> 1;
 526         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 527         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 528         if (!eeprom_buff)
 529                 return -ENOMEM;
 530
 531         ptr = (void *)eeprom_buff;
 532
 533         if (eeprom->offset & 1) {
 534                 /* need read/modify/write of first changed EEPROM word */
 535                 /* only the second byte of the word is being modified */
 536                 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 537                 ptr++;
 538         }
 539         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0))
 540                 /* need read/modify/write of last changed EEPROM word */
 541                 /* only the first byte of the word is being modified */
 542                 ret_val = e1000_read_nvm(hw, last_word, 1,
 543                                   &eeprom_buff[last_word - first_word]);
 544
 545         if (ret_val)
 546                 goto out;
 547
 548         /* Device's eeprom is always little-endian, word addressable */
 549         for (i = 0; i < last_word - first_word + 1; i++)
 550                 le16_to_cpus(&eeprom_buff[i]);
 551
 552         memcpy(ptr, bytes, eeprom->len);
 553
 554         for (i = 0; i < last_word - first_word + 1; i++)
 555                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 556
 557         ret_val = e1000_write_nvm(hw, first_word,
 558                                   last_word - first_word + 1, eeprom_buff);
 559
 560         if (ret_val)
 561                 goto out;
 562
 563         /*
 564          * Update the checksum over the first part of the EEPROM if needed
 565          * and flush shadow RAM for applicable controllers
 566          */
 567         if ((first_word <= NVM_CHECKSUM_REG) ||
 568             (hw->mac.type == e1000_82583) ||
 569             (hw->mac.type == e1000_82574) ||
 570             (hw->mac.type == e1000_82573))
 571                 ret_val = e1000e_update_nvm_checksum(hw);
 572
 573 out:
 574         kfree(eeprom_buff);
 575         return ret_val;
 576 }
 577
 578 static void e1000_get_drvinfo(struct net_device *netdev,
 579                               struct ethtool_drvinfo *drvinfo)
 580 {
 581         struct e1000_adapter *adapter = netdev_priv(netdev);
 582         char firmware_version[32];
 583
 584         strncpy(drvinfo->driver,  e1000e_driver_name,
 585                 sizeof(drvinfo->driver) - 1);
 586         strncpy(drvinfo->version, e1000e_driver_version,
 587                 sizeof(drvinfo->version) - 1);
 588
 589         /*
 590          * EEPROM image version # is reported as firmware version # for
 591          * PCI-E controllers
 592          */
 593         snprintf(firmware_version, sizeof(firmware_version), "%d.%d-%d",
 594                 (adapter->eeprom_vers & 0xF000) >> 12,
 595                 (adapter->eeprom_vers & 0x0FF0) >> 4,
 596                 (adapter->eeprom_vers & 0x000F));
 597
 598         strncpy(drvinfo->fw_version, firmware_version,
 599                 sizeof(drvinfo->fw_version) - 1);
 600         strncpy(drvinfo->bus_info, pci_name(adapter->pdev),
 601                 sizeof(drvinfo->bus_info) - 1);
 602         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 603         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 604 }
 605
 606 static void e1000_get_ringparam(struct net_device *netdev,
 607                                 struct ethtool_ringparam *ring)
 608 {
 609         struct e1000_adapter *adapter = netdev_priv(netdev);
 610         struct e1000_ring *tx_ring = adapter->tx_ring;
 611         struct e1000_ring *rx_ring = adapter->rx_ring;
 612
 613         ring->rx_max_pending = E1000_MAX_RXD;
 614         ring->tx_max_pending = E1000_MAX_TXD;
 615         ring->rx_pending = rx_ring->count;
 616         ring->tx_pending = tx_ring->count;
 617 }
 618
 619 static int e1000_set_ringparam(struct net_device *netdev,
 620                                struct ethtool_ringparam *ring)
 621 {
 622         struct e1000_adapter *adapter = netdev_priv(netdev);
 623         struct e1000_ring *tx_ring, *tx_old;
 624         struct e1000_ring *rx_ring, *rx_old;
 625         int err;
 626
 627         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 628                 return -EINVAL;
 629
 630         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 631                 usleep_range(1000, 2000);
 632
 633         if (netif_running(adapter->netdev))
 634                 e1000e_down(adapter);
 635
 636         tx_old = adapter->tx_ring;
 637         rx_old = adapter->rx_ring;
 638
 639         err = -ENOMEM;
 640         tx_ring = kmemdup(tx_old, sizeof(struct e1000_ring), GFP_KERNEL);
 641         if (!tx_ring)
 642                 goto err_alloc_tx;
 643
 644         rx_ring = kmemdup(rx_old, sizeof(struct e1000_ring), GFP_KERNEL);
 645         if (!rx_ring)
 646                 goto err_alloc_rx;
 647
 648         adapter->tx_ring = tx_ring;
 649         adapter->rx_ring = rx_ring;
 650
 651         rx_ring->count = max(ring->rx_pending, (u32)E1000_MIN_RXD);
 652         rx_ring->count = min(rx_ring->count, (u32)(E1000_MAX_RXD));
 653         rx_ring->count = ALIGN(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 654
 655         tx_ring->count = max(ring->tx_pending, (u32)E1000_MIN_TXD);
 656         tx_ring->count = min(tx_ring->count, (u32)(E1000_MAX_TXD));
 657         tx_ring->count = ALIGN(tx_ring->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 658
 659         if (netif_running(adapter->netdev)) {
 660                 /* Try to get new resources before deleting old */
 661                 err = e1000e_setup_rx_resources(adapter);
 662                 if (err)
 663                         goto err_setup_rx;
 664                 err = e1000e_setup_tx_resources(adapter);
 665                 if (err)
 666                         goto err_setup_tx;
 667
 668                 /*
 669                  * restore the old in order to free it,
 670                  * then add in the new
 671                  */
 672                 adapter->rx_ring = rx_old;
 673                 adapter->tx_ring = tx_old;
 674                 e1000e_free_rx_resources(adapter);
 675                 e1000e_free_tx_resources(adapter);
 676                 kfree(tx_old);
 677                 kfree(rx_old);
 678                 adapter->rx_ring = rx_ring;
 679                 adapter->tx_ring = tx_ring;
 680                 err = e1000e_up(adapter);
 681                 if (err)
 682                         goto err_setup;
 683         }
 684
 685         clear_bit(__E1000_RESETTING, &adapter->state);
 686         return 0;
 687 err_setup_tx:
 688         e1000e_free_rx_resources(adapter);
 689 err_setup_rx:
 690         adapter->rx_ring = rx_old;
 691         adapter->tx_ring = tx_old;
 692         kfree(rx_ring);
 693 err_alloc_rx:
 694         kfree(tx_ring);
 695 err_alloc_tx:
 696         e1000e_up(adapter);
 697 err_setup:
 698         clear_bit(__E1000_RESETTING, &adapter->state);
 699         return err;
 700 }
 701
 702 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 703                              int reg, int offset, u32 mask, u32 write)
 704 {
 705         u32 pat, val;
 706         static const u32 test[] = {
 707                 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 708         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 709                 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 710                                       (test[pat] & write));
 711                 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 712                 if (val != (test[pat] & write & mask)) {
 713                         e_err("pattern test reg %04X failed: got 0x%08X "
 714                               "expected 0x%08X\n", reg + offset, val,
 715                               (test[pat] & write & mask));
 716                         *data = reg;
 717                         return 1;
 718                 }
 719         }
 720         return 0;
 721 }
 722
 723 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 724                               int reg, u32 mask, u32 write)
 725 {
 726         u32 val;
 727         __ew32(&adapter->hw, reg, write & mask);
 728         val = __er32(&adapter->hw, reg);
 729         if ((write & mask) != (val & mask)) {
 730                 e_err("set/check reg %04X test failed: got 0x%08X "
 731                       "expected 0x%08X\n", reg, (val & mask), (write & mask));
 732                 *data = reg;
 733                 return 1;
 734         }
 735         return 0;
 736 }
 737 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 738         do {                                                                   \
 739                 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 740                         return 1;                                              \
 741         } while (0)
 742 #define REG_PATTERN_TEST(reg, mask, write)                                     \
 743         REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 744
 745 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
 746         do {                                                                   \
 747                 if (reg_set_and_check(adapter, data, reg, mask, write))        \
 748                         return 1;                                              \
 749         } while (0)
 750
 751 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 752 {
 753         struct e1000_hw *hw = &adapter->hw;
 754         struct e1000_mac_info *mac = &adapter->hw.mac;
 755         u32 value;
 756         u32 before;
 757         u32 after;
 758         u32 i;
 759         u32 toggle;
 760         u32 mask;
 761
 762         /*
 763          * The status register is Read Only, so a write should fail.
 764          * Some bits that get toggled are ignored.
 765          */
 766         switch (mac->type) {
 767         /* there are several bits on newer hardware that are r/w */
 768         case e1000_82571:
 769         case e1000_82572:
 770         case e1000_80003es2lan:
 771                 toggle = 0x7FFFF3FF;
 772                 break;
 773         default:
 774                 toggle = 0x7FFFF033;
 775                 break;
 776         }
 777
 778         before = er32(STATUS);
 779         value = (er32(STATUS) & toggle);
 780         ew32(STATUS, toggle);
 781         after = er32(STATUS) & toggle;
 782         if (value != after) {
 783                 e_err("failed STATUS register test got: 0x%08X expected: "
 784                       "0x%08X\n", after, value);
 785                 *data = 1;
 786                 return 1;
 787         }
 788         /* restore previous status */
 789         ew32(STATUS, before);
 790
 791         if (!(adapter->flags & FLAG_IS_ICH)) {
 792                 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 793                 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 794                 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 795                 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 796         }
 797
 798         REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 799         REG_PATTERN_TEST(E1000_RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 800         REG_PATTERN_TEST(E1000_RDLEN, 0x000FFF80, 0x000FFFFF);
 801         REG_PATTERN_TEST(E1000_RDH, 0x0000FFFF, 0x0000FFFF);
 802         REG_PATTERN_TEST(E1000_RDT, 0x0000FFFF, 0x0000FFFF);
 803         REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 804         REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 805         REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 806         REG_PATTERN_TEST(E1000_TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 807         REG_PATTERN_TEST(E1000_TDLEN, 0x000FFF80, 0x000FFFFF);
 808
 809         REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 810
 811         before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 812         REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 813         REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 814
 815         REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 816         REG_PATTERN_TEST(E1000_RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 817         if (!(adapter->flags & FLAG_IS_ICH))
 818                 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 819         REG_PATTERN_TEST(E1000_TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 820         REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 821         mask = 0x8003FFFF;
 822         switch (mac->type) {
 823         case e1000_ich10lan:
 824         case e1000_pchlan:
 825         case e1000_pch2lan:
 826                 mask |= (1 << 18);
 827                 break;
 828         default:
 829                 break;
 830         }
 831         for (i = 0; i < mac->rar_entry_count; i++)
 832                 REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1),
 833                                        mask, 0xFFFFFFFF);
 834
 835         for (i = 0; i < mac->mta_reg_count; i++)
 836                 REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 837
 838         *data = 0;
 839         return 0;
 840 }
 841
 842 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 843 {
 844         u16 temp;
 845         u16 checksum = 0;
 846         u16 i;
 847
 848         *data = 0;
 849         /* Read and add up the contents of the EEPROM */
 850         for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 851                 if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 852                         *data = 1;
 853                         return *data;
 854                 }
 855                 checksum += temp;
 856         }
 857
 858         /* If Checksum is not Correct return error else test passed */
 859         if ((checksum != (u16) NVM_SUM) && !(*data))
 860                 *data = 2;
 861
 862         return *data;
 863 }
 864
 865 static irqreturn_t e1000_test_intr(int irq, void *data)
 866 {
 867         struct net_device *netdev = (struct net_device *) data;
 868         struct e1000_adapter *adapter = netdev_priv(netdev);
 869         struct e1000_hw *hw = &adapter->hw;
 870
 871         adapter->test_icr |= er32(ICR);
 872
 873         return IRQ_HANDLED;
 874 }
 875
 876 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 877 {
 878         struct net_device *netdev = adapter->netdev;
 879         struct e1000_hw *hw = &adapter->hw;
 880         u32 mask;
 881         u32 shared_int = 1;
 882         u32 irq = adapter->pdev->irq;
 883         int i;
 884         int ret_val = 0;
 885         int int_mode = E1000E_INT_MODE_LEGACY;
 886
 887         *data = 0;
 888
 889         /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
 890         if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
 891                 int_mode = adapter->int_mode;
 892                 e1000e_reset_interrupt_capability(adapter);
 893                 adapter->int_mode = E1000E_INT_MODE_LEGACY;
 894                 e1000e_set_interrupt_capability(adapter);
 895         }
 896         /* Hook up test interrupt handler just for this test */
 897         if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 898                          netdev)) {
 899                 shared_int = 0;
 900         } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED,
 901                  netdev->name, netdev)) {
 902                 *data = 1;
 903                 ret_val = -1;
 904                 goto out;
 905         }
 906         e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
 907
 908         /* Disable all the interrupts */
 909         ew32(IMC, 0xFFFFFFFF);
 910         e1e_flush();
 911         usleep_range(10000, 20000);
 912
 913         /* Test each interrupt */
 914         for (i = 0; i < 10; i++) {
 915                 /* Interrupt to test */
 916                 mask = 1 << i;
 917
 918                 if (adapter->flags & FLAG_IS_ICH) {
 919                         switch (mask) {
 920                         case E1000_ICR_RXSEQ:
 921                                 continue;
 922                         case 0x00000100:
 923                                 if (adapter->hw.mac.type == e1000_ich8lan ||
 924                                     adapter->hw.mac.type == e1000_ich9lan)
 925                                         continue;
 926                                 break;
 927                         default:
 928                                 break;
 929                         }
 930                 }
 931
 932                 if (!shared_int) {
 933                         /*
 934                          * Disable the interrupt to be reported in
 935                          * the cause register and then force the same
 936                          * interrupt and see if one gets posted.  If
 937                          * an interrupt was posted to the bus, the
 938                          * test failed.
 939                          */
 940                         adapter->test_icr = 0;
 941                         ew32(IMC, mask);
 942                         ew32(ICS, mask);
 943                         e1e_flush();
 944                         usleep_range(10000, 20000);
 945
 946                         if (adapter->test_icr & mask) {
 947                                 *data = 3;
 948                                 break;
 949                         }
 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                 ew32(IMS, mask);
 961                 ew32(ICS, mask);
 962                 e1e_flush();
 963                 usleep_range(10000, 20000);
 964
 965                 if (!(adapter->test_icr & mask)) {
 966                         *data = 4;
 967                         break;
 968                 }
 969
 970                 if (!shared_int) {
 971                         /*
 972                          * Disable the other interrupts to be reported in
 973                          * the cause register and then force the other
 974                          * interrupts and see if any get posted.  If
 975                          * an interrupt was posted to the bus, the
 976                          * test failed.
 977                          */
 978                         adapter->test_icr = 0;
 979                         ew32(IMC, ~mask & 0x00007FFF);
 980                         ew32(ICS, ~mask & 0x00007FFF);
 981                         e1e_flush();
 982                         usleep_range(10000, 20000);
 983
 984                         if (adapter->test_icr) {
 985                                 *data = 5;
 986                                 break;
 987                         }
 988                 }
 989         }
 990
 991         /* Disable all the interrupts */
 992         ew32(IMC, 0xFFFFFFFF);
 993         e1e_flush();
 994         usleep_range(10000, 20000);
 995
 996         /* Unhook test interrupt handler */
 997         free_irq(irq, netdev);
 998
 999 out:
1000         if (int_mode == E1000E_INT_MODE_MSIX) {
1001                 e1000e_reset_interrupt_capability(adapter);
1002                 adapter->int_mode = int_mode;
1003                 e1000e_set_interrupt_capability(adapter);
1004         }
1005
1006         return ret_val;
1007 }
1008
1009 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1010 {
1011         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1012         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1013         struct pci_dev *pdev = adapter->pdev;
1014         int i;
1015
1016         if (tx_ring->desc && tx_ring->buffer_info) {
1017                 for (i = 0; i < tx_ring->count; i++) {
1018                         if (tx_ring->buffer_info[i].dma)
1019                                 dma_unmap_single(&pdev->dev,
1020                                         tx_ring->buffer_info[i].dma,
1021                                         tx_ring->buffer_info[i].length,
1022                                         DMA_TO_DEVICE);
1023                         if (tx_ring->buffer_info[i].skb)
1024                                 dev_kfree_skb(tx_ring->buffer_info[i].skb);
1025                 }
1026         }
1027
1028         if (rx_ring->desc && rx_ring->buffer_info) {
1029                 for (i = 0; i < rx_ring->count; i++) {
1030                         if (rx_ring->buffer_info[i].dma)
1031                                 dma_unmap_single(&pdev->dev,
1032                                         rx_ring->buffer_info[i].dma,
1033                                         2048, DMA_FROM_DEVICE);
1034                         if (rx_ring->buffer_info[i].skb)
1035                                 dev_kfree_skb(rx_ring->buffer_info[i].skb);
1036                 }
1037         }
1038
1039         if (tx_ring->desc) {
1040                 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1041                                   tx_ring->dma);
1042                 tx_ring->desc = NULL;
1043         }
1044         if (rx_ring->desc) {
1045                 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1046                                   rx_ring->dma);
1047                 rx_ring->desc = NULL;
1048         }
1049
1050         kfree(tx_ring->buffer_info);
1051         tx_ring->buffer_info = NULL;
1052         kfree(rx_ring->buffer_info);
1053         rx_ring->buffer_info = NULL;
1054 }
1055
1056 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1057 {
1058         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1059         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1060         struct pci_dev *pdev = adapter->pdev;
1061         struct e1000_hw *hw = &adapter->hw;
1062         u32 rctl;
1063         int i;
1064         int ret_val;
1065
1066         /* Setup Tx descriptor ring and Tx buffers */
1067
1068         if (!tx_ring->count)
1069                 tx_ring->count = E1000_DEFAULT_TXD;
1070
1071         tx_ring->buffer_info = kcalloc(tx_ring->count,
1072                                        sizeof(struct e1000_buffer),
1073                                        GFP_KERNEL);
1074         if (!(tx_ring->buffer_info)) {
1075                 ret_val = 1;
1076                 goto err_nomem;
1077         }
1078
1079         tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1080         tx_ring->size = ALIGN(tx_ring->size, 4096);
1081         tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1082                                            &tx_ring->dma, GFP_KERNEL);
1083         if (!tx_ring->desc) {
1084                 ret_val = 2;
1085                 goto err_nomem;
1086         }
1087         tx_ring->next_to_use = 0;
1088         tx_ring->next_to_clean = 0;
1089
1090         ew32(TDBAL, ((u64) tx_ring->dma & 0x00000000FFFFFFFF));
1091         ew32(TDBAH, ((u64) tx_ring->dma >> 32));
1092         ew32(TDLEN, tx_ring->count * sizeof(struct e1000_tx_desc));
1093         ew32(TDH, 0);
1094         ew32(TDT, 0);
1095         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1096              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1097              E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1098
1099         for (i = 0; i < tx_ring->count; i++) {
1100                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1101                 struct sk_buff *skb;
1102                 unsigned int skb_size = 1024;
1103
1104                 skb = alloc_skb(skb_size, GFP_KERNEL);
1105                 if (!skb) {
1106                         ret_val = 3;
1107                         goto err_nomem;
1108                 }
1109                 skb_put(skb, skb_size);
1110                 tx_ring->buffer_info[i].skb = skb;
1111                 tx_ring->buffer_info[i].length = skb->len;
1112                 tx_ring->buffer_info[i].dma =
1113                         dma_map_single(&pdev->dev, skb->data, skb->len,
1114                                        DMA_TO_DEVICE);
1115                 if (dma_mapping_error(&pdev->dev,
1116                                       tx_ring->buffer_info[i].dma)) {
1117                         ret_val = 4;
1118                         goto err_nomem;
1119                 }
1120                 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1121                 tx_desc->lower.data = cpu_to_le32(skb->len);
1122                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1123                                                    E1000_TXD_CMD_IFCS |
1124                                                    E1000_TXD_CMD_RS);
1125                 tx_desc->upper.data = 0;
1126         }
1127
1128         /* Setup Rx descriptor ring and Rx buffers */
1129
1130         if (!rx_ring->count)
1131                 rx_ring->count = E1000_DEFAULT_RXD;
1132
1133         rx_ring->buffer_info = kcalloc(rx_ring->count,
1134                                        sizeof(struct e1000_buffer),
1135                                        GFP_KERNEL);
1136         if (!(rx_ring->buffer_info)) {
1137                 ret_val = 5;
1138                 goto err_nomem;
1139         }
1140
1141         rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
1142         rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1143                                            &rx_ring->dma, GFP_KERNEL);
1144         if (!rx_ring->desc) {
1145                 ret_val = 6;
1146                 goto err_nomem;
1147         }
1148         rx_ring->next_to_use = 0;
1149         rx_ring->next_to_clean = 0;
1150
1151         rctl = er32(RCTL);
1152         if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1153                 ew32(RCTL, rctl & ~E1000_RCTL_EN);
1154         ew32(RDBAL, ((u64) rx_ring->dma & 0xFFFFFFFF));
1155         ew32(RDBAH, ((u64) rx_ring->dma >> 32));
1156         ew32(RDLEN, rx_ring->size);
1157         ew32(RDH, 0);
1158         ew32(RDT, 0);
1159         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1160                 E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1161                 E1000_RCTL_SBP | E1000_RCTL_SECRC |
1162                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1163                 (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1164         ew32(RCTL, rctl);
1165
1166         for (i = 0; i < rx_ring->count; i++) {
1167                 union e1000_rx_desc_extended *rx_desc;
1168                 struct sk_buff *skb;
1169
1170                 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1171                 if (!skb) {
1172                         ret_val = 7;
1173                         goto err_nomem;
1174                 }
1175                 skb_reserve(skb, NET_IP_ALIGN);
1176                 rx_ring->buffer_info[i].skb = skb;
1177                 rx_ring->buffer_info[i].dma =
1178                         dma_map_single(&pdev->dev, skb->data, 2048,
1179                                        DMA_FROM_DEVICE);
1180                 if (dma_mapping_error(&pdev->dev,
1181                                       rx_ring->buffer_info[i].dma)) {
1182                         ret_val = 8;
1183                         goto err_nomem;
1184                 }
1185                 rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
1186                 rx_desc->read.buffer_addr =
1187                     cpu_to_le64(rx_ring->buffer_info[i].dma);
1188                 memset(skb->data, 0x00, skb->len);
1189         }
1190
1191         return 0;
1192
1193 err_nomem:
1194         e1000_free_desc_rings(adapter);
1195         return ret_val;
1196 }
1197
1198 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1199 {
1200         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1201         e1e_wphy(&adapter->hw, 29, 0x001F);
1202         e1e_wphy(&adapter->hw, 30, 0x8FFC);
1203         e1e_wphy(&adapter->hw, 29, 0x001A);
1204         e1e_wphy(&adapter->hw, 30, 0x8FF0);
1205 }
1206
1207 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1208 {
1209         struct e1000_hw *hw = &adapter->hw;
1210         u32 ctrl_reg = 0;
1211         u16 phy_reg = 0;
1212         s32 ret_val = 0;
1213
1214         hw->mac.autoneg = 0;
1215
1216         if (hw->phy.type == e1000_phy_ife) {
1217                 /* force 100, set loopback */
1218                 e1e_wphy(hw, PHY_CONTROL, 0x6100);
1219
1220                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1221                 ctrl_reg = er32(CTRL);
1222                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1223                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1224                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1225                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1226                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1227
1228                 ew32(CTRL, ctrl_reg);
1229                 e1e_flush();
1230                 udelay(500);
1231
1232                 return 0;
1233         }
1234
1235         /* Specific PHY configuration for loopback */
1236         switch (hw->phy.type) {
1237         case e1000_phy_m88:
1238                 /* Auto-MDI/MDIX Off */
1239                 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1240                 /* reset to update Auto-MDI/MDIX */
1241                 e1e_wphy(hw, PHY_CONTROL, 0x9140);
1242                 /* autoneg off */
1243                 e1e_wphy(hw, PHY_CONTROL, 0x8140);
1244                 break;
1245         case e1000_phy_gg82563:
1246                 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1247                 break;
1248         case e1000_phy_bm:
1249                 /* Set Default MAC Interface speed to 1GB */
1250                 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1251                 phy_reg &= ~0x0007;
1252                 phy_reg |= 0x006;
1253                 e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1254                 /* Assert SW reset for above settings to take effect */
1255                 e1000e_commit_phy(hw);
1256                 mdelay(1);
1257                 /* Force Full Duplex */
1258                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1259                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1260                 /* Set Link Up (in force link) */
1261                 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1262                 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1263                 /* Force Link */
1264                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1265                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1266                 /* Set Early Link Enable */
1267                 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1268                 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1269                 break;
1270         case e1000_phy_82577:
1271         case e1000_phy_82578:
1272                 /* Workaround: K1 must be disabled for stable 1Gbps operation */
1273                 ret_val = hw->phy.ops.acquire(hw);
1274                 if (ret_val) {
1275                         e_err("Cannot setup 1Gbps loopback.\n");
1276                         return ret_val;
1277                 }
1278                 e1000_configure_k1_ich8lan(hw, false);
1279                 hw->phy.ops.release(hw);
1280                 break;
1281         case e1000_phy_82579:
1282                 /* Disable PHY energy detect power down */
1283                 e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1284                 e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~(1 << 3));
1285                 /* Disable full chip energy detect */
1286                 e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1287                 e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1288                 /* Enable loopback on the PHY */
1289 #define I82577_PHY_LBK_CTRL          19
1290                 e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1291                 break;
1292         default:
1293                 break;
1294         }
1295
1296         /* force 1000, set loopback */
1297         e1e_wphy(hw, PHY_CONTROL, 0x4140);
1298         mdelay(250);
1299
1300         /* Now set up the MAC to the same speed/duplex as the PHY. */
1301         ctrl_reg = er32(CTRL);
1302         ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1303         ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1304                      E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1305                      E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1306                      E1000_CTRL_FD);     /* Force Duplex to FULL */
1307
1308         if (adapter->flags & FLAG_IS_ICH)
1309                 ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1310
1311         if (hw->phy.media_type == e1000_media_type_copper &&
1312             hw->phy.type == e1000_phy_m88) {
1313                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1314         } else {
1315                 /*
1316                  * Set the ILOS bit on the fiber Nic if half duplex link is
1317                  * detected.
1318                  */
1319                 if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1320                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1321         }
1322
1323         ew32(CTRL, ctrl_reg);
1324
1325         /*
1326          * Disable the receiver on the PHY so when a cable is plugged in, the
1327          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1328          */
1329         if (hw->phy.type == e1000_phy_m88)
1330                 e1000_phy_disable_receiver(adapter);
1331
1332         udelay(500);
1333
1334         return 0;
1335 }
1336
1337 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1338 {
1339         struct e1000_hw *hw = &adapter->hw;
1340         u32 ctrl = er32(CTRL);
1341         int link = 0;
1342
1343         /* special requirements for 82571/82572 fiber adapters */
1344
1345         /*
1346          * jump through hoops to make sure link is up because serdes
1347          * link is hardwired up
1348          */
1349         ctrl |= E1000_CTRL_SLU;
1350         ew32(CTRL, ctrl);
1351
1352         /* disable autoneg */
1353         ctrl = er32(TXCW);
1354         ctrl &= ~(1 << 31);
1355         ew32(TXCW, ctrl);
1356
1357         link = (er32(STATUS) & E1000_STATUS_LU);
1358
1359         if (!link) {
1360                 /* set invert loss of signal */
1361                 ctrl = er32(CTRL);
1362                 ctrl |= E1000_CTRL_ILOS;
1363                 ew32(CTRL, ctrl);
1364         }
1365
1366         /*
1367          * special write to serdes control register to enable SerDes analog
1368          * loopback
1369          */
1370 #define E1000_SERDES_LB_ON 0x410
1371         ew32(SCTL, E1000_SERDES_LB_ON);
1372         e1e_flush();
1373         usleep_range(10000, 20000);
1374
1375         return 0;
1376 }
1377
1378 /* only call this for fiber/serdes connections to es2lan */
1379 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1380 {
1381         struct e1000_hw *hw = &adapter->hw;
1382         u32 ctrlext = er32(CTRL_EXT);
1383         u32 ctrl = er32(CTRL);
1384
1385         /*
1386          * save CTRL_EXT to restore later, reuse an empty variable (unused
1387          * on mac_type 80003es2lan)
1388          */
1389         adapter->tx_fifo_head = ctrlext;
1390
1391         /* clear the serdes mode bits, putting the device into mac loopback */
1392         ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1393         ew32(CTRL_EXT, ctrlext);
1394
1395         /* force speed to 1000/FD, link up */
1396         ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1397         ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1398                  E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1399         ew32(CTRL, ctrl);
1400
1401         /* set mac loopback */
1402         ctrl = er32(RCTL);
1403         ctrl |= E1000_RCTL_LBM_MAC;
1404         ew32(RCTL, ctrl);
1405
1406         /* set testing mode parameters (no need to reset later) */
1407 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1408 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1409         ew32(KMRNCTRLSTA,
1410              (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1411
1412         return 0;
1413 }
1414
1415 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1416 {
1417         struct e1000_hw *hw = &adapter->hw;
1418         u32 rctl;
1419
1420         if (hw->phy.media_type == e1000_media_type_fiber ||
1421             hw->phy.media_type == e1000_media_type_internal_serdes) {
1422                 switch (hw->mac.type) {
1423                 case e1000_80003es2lan:
1424                         return e1000_set_es2lan_mac_loopback(adapter);
1425                         break;
1426                 case e1000_82571:
1427                 case e1000_82572:
1428                         return e1000_set_82571_fiber_loopback(adapter);
1429                         break;
1430                 default:
1431                         rctl = er32(RCTL);
1432                         rctl |= E1000_RCTL_LBM_TCVR;
1433                         ew32(RCTL, rctl);
1434                         return 0;
1435                 }
1436         } else if (hw->phy.media_type == e1000_media_type_copper) {
1437                 return e1000_integrated_phy_loopback(adapter);
1438         }
1439
1440         return 7;
1441 }
1442
1443 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1444 {
1445         struct e1000_hw *hw = &adapter->hw;
1446         u32 rctl;
1447         u16 phy_reg;
1448
1449         rctl = er32(RCTL);
1450         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1451         ew32(RCTL, rctl);
1452
1453         switch (hw->mac.type) {
1454         case e1000_80003es2lan:
1455                 if (hw->phy.media_type == e1000_media_type_fiber ||
1456                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1457                         /* restore CTRL_EXT, stealing space from tx_fifo_head */
1458                         ew32(CTRL_EXT, adapter->tx_fifo_head);
1459                         adapter->tx_fifo_head = 0;
1460                 }
1461                 /* fall through */
1462         case e1000_82571:
1463         case e1000_82572:
1464                 if (hw->phy.media_type == e1000_media_type_fiber ||
1465                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1466 #define E1000_SERDES_LB_OFF 0x400
1467                         ew32(SCTL, E1000_SERDES_LB_OFF);
1468                         e1e_flush();
1469                         usleep_range(10000, 20000);
1470                         break;
1471                 }
1472                 /* Fall Through */
1473         default:
1474                 hw->mac.autoneg = 1;
1475                 if (hw->phy.type == e1000_phy_gg82563)
1476                         e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1477                 e1e_rphy(hw, PHY_CONTROL, &phy_reg);
1478                 if (phy_reg & MII_CR_LOOPBACK) {
1479                         phy_reg &= ~MII_CR_LOOPBACK;
1480                         e1e_wphy(hw, PHY_CONTROL, phy_reg);
1481                         e1000e_commit_phy(hw);
1482                 }
1483                 break;
1484         }
1485 }
1486
1487 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1488                                       unsigned int frame_size)
1489 {
1490         memset(skb->data, 0xFF, frame_size);
1491         frame_size &= ~1;
1492         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1493         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1494         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1495 }
1496
1497 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1498                                     unsigned int frame_size)
1499 {
1500         frame_size &= ~1;
1501         if (*(skb->data + 3) == 0xFF)
1502                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1503                    (*(skb->data + frame_size / 2 + 12) == 0xAF))
1504                         return 0;
1505         return 13;
1506 }
1507
1508 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1509 {
1510         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1511         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1512         struct pci_dev *pdev = adapter->pdev;
1513         struct e1000_hw *hw = &adapter->hw;
1514         int i, j, k, l;
1515         int lc;
1516         int good_cnt;
1517         int ret_val = 0;
1518         unsigned long time;
1519
1520         ew32(RDT, rx_ring->count - 1);
1521
1522         /*
1523          * Calculate the loop count based on the largest descriptor ring
1524          * The idea is to wrap the largest ring a number of times using 64
1525          * send/receive pairs during each loop
1526          */
1527
1528         if (rx_ring->count <= tx_ring->count)
1529                 lc = ((tx_ring->count / 64) * 2) + 1;
1530         else
1531                 lc = ((rx_ring->count / 64) * 2) + 1;
1532
1533         k = 0;
1534         l = 0;
1535         for (j = 0; j <= lc; j++) { /* loop count loop */
1536                 for (i = 0; i < 64; i++) { /* send the packets */
1537                         e1000_create_lbtest_frame(tx_ring->buffer_info[k].skb,
1538                                                   1024);
1539                         dma_sync_single_for_device(&pdev->dev,
1540                                         tx_ring->buffer_info[k].dma,
1541                                         tx_ring->buffer_info[k].length,
1542                                         DMA_TO_DEVICE);
1543                         k++;
1544                         if (k == tx_ring->count)
1545                                 k = 0;
1546                 }
1547                 ew32(TDT, k);
1548                 e1e_flush();
1549                 msleep(200);
1550                 time = jiffies; /* set the start time for the receive */
1551                 good_cnt = 0;
1552                 do { /* receive the sent packets */
1553                         dma_sync_single_for_cpu(&pdev->dev,
1554                                         rx_ring->buffer_info[l].dma, 2048,
1555                                         DMA_FROM_DEVICE);
1556
1557                         ret_val = e1000_check_lbtest_frame(
1558                                         rx_ring->buffer_info[l].skb, 1024);
1559                         if (!ret_val)
1560                                 good_cnt++;
1561                         l++;
1562                         if (l == rx_ring->count)
1563                                 l = 0;
1564                         /*
1565                          * time + 20 msecs (200 msecs on 2.4) is more than
1566                          * enough time to complete the receives, if it's
1567                          * exceeded, break and error off
1568                          */
1569                 } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1570                 if (good_cnt != 64) {
1571                         ret_val = 13; /* ret_val is the same as mis-compare */
1572                         break;
1573                 }
1574                 if (jiffies >= (time + 20)) {
1575                         ret_val = 14; /* error code for time out error */
1576                         break;
1577                 }
1578         } /* end loop count loop */
1579         return ret_val;
1580 }
1581
1582 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1583 {
1584         /*
1585          * PHY loopback cannot be performed if SoL/IDER
1586          * sessions are active
1587          */
1588         if (e1000_check_reset_block(&adapter->hw)) {
1589                 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1590                 *data = 0;
1591                 goto out;
1592         }
1593
1594         *data = e1000_setup_desc_rings(adapter);
1595         if (*data)
1596                 goto out;
1597
1598         *data = e1000_setup_loopback_test(adapter);
1599         if (*data)
1600                 goto err_loopback;
1601
1602         *data = e1000_run_loopback_test(adapter);
1603         e1000_loopback_cleanup(adapter);
1604
1605 err_loopback:
1606         e1000_free_desc_rings(adapter);
1607 out:
1608         return *data;
1609 }
1610
1611 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1612 {
1613         struct e1000_hw *hw = &adapter->hw;
1614
1615         *data = 0;
1616         if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1617                 int i = 0;
1618                 hw->mac.serdes_has_link = false;
1619
1620                 /*
1621                  * On some blade server designs, link establishment
1622                  * could take as long as 2-3 minutes
1623                  */
1624                 do {
1625                         hw->mac.ops.check_for_link(hw);
1626                         if (hw->mac.serdes_has_link)
1627                                 return *data;
1628                         msleep(20);
1629                 } while (i++ < 3750);
1630
1631                 *data = 1;
1632         } else {
1633                 hw->mac.ops.check_for_link(hw);
1634                 if (hw->mac.autoneg)
1635                         /*
1636                          * On some Phy/switch combinations, link establishment
1637                          * can take a few seconds more than expected.
1638                          */
1639                         msleep(5000);
1640
1641                 if (!(er32(STATUS) & E1000_STATUS_LU))
1642                         *data = 1;
1643         }
1644         return *data;
1645 }
1646
1647 static int e1000e_get_sset_count(struct net_device *netdev, int sset)
1648 {
1649         switch (sset) {
1650         case ETH_SS_TEST:
1651                 return E1000_TEST_LEN;
1652         case ETH_SS_STATS:
1653                 return E1000_STATS_LEN;
1654         default:
1655                 return -EOPNOTSUPP;
1656         }
1657 }
1658
1659 static void e1000_diag_test(struct net_device *netdev,
1660                             struct ethtool_test *eth_test, u64 *data)
1661 {
1662         struct e1000_adapter *adapter = netdev_priv(netdev);
1663         u16 autoneg_advertised;
1664         u8 forced_speed_duplex;
1665         u8 autoneg;
1666         bool if_running = netif_running(netdev);
1667
1668         set_bit(__E1000_TESTING, &adapter->state);
1669
1670         if (!if_running) {
1671                 /* Get control of and reset hardware */
1672                 if (adapter->flags & FLAG_HAS_AMT)
1673                         e1000e_get_hw_control(adapter);
1674
1675                 e1000e_power_up_phy(adapter);
1676
1677                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1678                 e1000e_reset(adapter);
1679                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1680         }
1681
1682         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1683                 /* Offline tests */
1684
1685                 /* save speed, duplex, autoneg settings */
1686                 autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1687                 forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1688                 autoneg = adapter->hw.mac.autoneg;
1689
1690                 e_info("offline testing starting\n");
1691
1692                 if (if_running)
1693                         /* indicate we're in test mode */
1694                         dev_close(netdev);
1695
1696                 if (e1000_reg_test(adapter, &data[0]))
1697                         eth_test->flags |= ETH_TEST_FL_FAILED;
1698
1699                 e1000e_reset(adapter);
1700                 if (e1000_eeprom_test(adapter, &data[1]))
1701                         eth_test->flags |= ETH_TEST_FL_FAILED;
1702
1703                 e1000e_reset(adapter);
1704                 if (e1000_intr_test(adapter, &data[2]))
1705                         eth_test->flags |= ETH_TEST_FL_FAILED;
1706
1707                 e1000e_reset(adapter);
1708                 if (e1000_loopback_test(adapter, &data[3]))
1709                         eth_test->flags |= ETH_TEST_FL_FAILED;
1710
1711                 /* force this routine to wait until autoneg complete/timeout */
1712                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1713                 e1000e_reset(adapter);
1714                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1715
1716                 if (e1000_link_test(adapter, &data[4]))
1717                         eth_test->flags |= ETH_TEST_FL_FAILED;
1718
1719                 /* restore speed, duplex, autoneg settings */
1720                 adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1721                 adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1722                 adapter->hw.mac.autoneg = autoneg;
1723                 e1000e_reset(adapter);
1724
1725                 clear_bit(__E1000_TESTING, &adapter->state);
1726                 if (if_running)
1727                         dev_open(netdev);
1728         } else {
1729                 /* Online tests */
1730
1731                 e_info("online testing starting\n");
1732
1733                 /* register, eeprom, intr and loopback tests not run online */
1734                 data[0] = 0;
1735                 data[1] = 0;
1736                 data[2] = 0;
1737                 data[3] = 0;
1738
1739                 if (e1000_link_test(adapter, &data[4]))
1740                         eth_test->flags |= ETH_TEST_FL_FAILED;
1741
1742                 clear_bit(__E1000_TESTING, &adapter->state);
1743         }
1744
1745         if (!if_running) {
1746                 e1000e_reset(adapter);
1747
1748                 if (adapter->flags & FLAG_HAS_AMT)
1749                         e1000e_release_hw_control(adapter);
1750         }
1751
1752         msleep_interruptible(4 * 1000);
1753 }
1754
1755 static void e1000_get_wol(struct net_device *netdev,
1756                           struct ethtool_wolinfo *wol)
1757 {
1758         struct e1000_adapter *adapter = netdev_priv(netdev);
1759
1760         wol->supported = 0;
1761         wol->wolopts = 0;
1762
1763         if (!(adapter->flags & FLAG_HAS_WOL) ||
1764             !device_can_wakeup(&adapter->pdev->dev))
1765                 return;
1766
1767         wol->supported = WAKE_UCAST | WAKE_MCAST |
1768             WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1769
1770         /* apply any specific unsupported masks here */
1771         if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1772                 wol->supported &= ~WAKE_UCAST;
1773
1774                 if (adapter->wol & E1000_WUFC_EX)
1775                         e_err("Interface does not support directed (unicast) "
1776                               "frame wake-up packets\n");
1777         }
1778
1779         if (adapter->wol & E1000_WUFC_EX)
1780                 wol->wolopts |= WAKE_UCAST;
1781         if (adapter->wol & E1000_WUFC_MC)
1782                 wol->wolopts |= WAKE_MCAST;
1783         if (adapter->wol & E1000_WUFC_BC)
1784                 wol->wolopts |= WAKE_BCAST;
1785         if (adapter->wol & E1000_WUFC_MAG)
1786                 wol->wolopts |= WAKE_MAGIC;
1787         if (adapter->wol & E1000_WUFC_LNKC)
1788                 wol->wolopts |= WAKE_PHY;
1789 }
1790
1791 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1792 {
1793         struct e1000_adapter *adapter = netdev_priv(netdev);
1794
1795         if (!(adapter->flags & FLAG_HAS_WOL) ||
1796             !device_can_wakeup(&adapter->pdev->dev) ||
1797             (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1798                               WAKE_MAGIC | WAKE_PHY)))
1799                 return -EOPNOTSUPP;
1800
1801         /* these settings will always override what we currently have */
1802         adapter->wol = 0;
1803
1804         if (wol->wolopts & WAKE_UCAST)
1805                 adapter->wol |= E1000_WUFC_EX;
1806         if (wol->wolopts & WAKE_MCAST)
1807                 adapter->wol |= E1000_WUFC_MC;
1808         if (wol->wolopts & WAKE_BCAST)
1809                 adapter->wol |= E1000_WUFC_BC;
1810         if (wol->wolopts & WAKE_MAGIC)
1811                 adapter->wol |= E1000_WUFC_MAG;
1812         if (wol->wolopts & WAKE_PHY)
1813                 adapter->wol |= E1000_WUFC_LNKC;
1814
1815         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1816
1817         return 0;
1818 }
1819
1820 static int e1000_set_phys_id(struct net_device *netdev,
1821                              enum ethtool_phys_id_state state)
1822 {
1823         struct e1000_adapter *adapter = netdev_priv(netdev);
1824         struct e1000_hw *hw = &adapter->hw;
1825
1826         switch (state) {
1827         case ETHTOOL_ID_ACTIVE:
1828                 if (!hw->mac.ops.blink_led)
1829                         return 2;       /* cycle on/off twice per second */
1830
1831                 hw->mac.ops.blink_led(hw);
1832                 break;
1833
1834         case ETHTOOL_ID_INACTIVE:
1835                 if (hw->phy.type == e1000_phy_ife)
1836                         e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1837                 hw->mac.ops.led_off(hw);
1838                 hw->mac.ops.cleanup_led(hw);
1839                 break;
1840
1841         case ETHTOOL_ID_ON:
1842                 adapter->hw.mac.ops.led_on(&adapter->hw);
1843                 break;
1844
1845         case ETHTOOL_ID_OFF:
1846                 adapter->hw.mac.ops.led_off(&adapter->hw);
1847                 break;
1848         }
1849         return 0;
1850 }
1851
1852 static int e1000_get_coalesce(struct net_device *netdev,
1853                               struct ethtool_coalesce *ec)
1854 {
1855         struct e1000_adapter *adapter = netdev_priv(netdev);
1856
1857         if (adapter->itr_setting <= 4)
1858                 ec->rx_coalesce_usecs = adapter->itr_setting;
1859         else
1860                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1861
1862         return 0;
1863 }
1864
1865 static int e1000_set_coalesce(struct net_device *netdev,
1866                               struct ethtool_coalesce *ec)
1867 {
1868         struct e1000_adapter *adapter = netdev_priv(netdev);
1869         struct e1000_hw *hw = &adapter->hw;
1870
1871         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1872             ((ec->rx_coalesce_usecs > 4) &&
1873              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1874             (ec->rx_coalesce_usecs == 2))
1875                 return -EINVAL;
1876
1877         if (ec->rx_coalesce_usecs == 4) {
1878                 adapter->itr = adapter->itr_setting = 4;
1879         } else if (ec->rx_coalesce_usecs <= 3) {
1880                 adapter->itr = 20000;
1881                 adapter->itr_setting = ec->rx_coalesce_usecs;
1882         } else {
1883                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1884                 adapter->itr_setting = adapter->itr & ~3;
1885         }
1886
1887         if (adapter->itr_setting != 0)
1888                 ew32(ITR, 1000000000 / (adapter->itr * 256));
1889         else
1890                 ew32(ITR, 0);
1891
1892         return 0;
1893 }
1894
1895 static int e1000_nway_reset(struct net_device *netdev)
1896 {
1897         struct e1000_adapter *adapter = netdev_priv(netdev);
1898
1899         if (!netif_running(netdev))
1900                 return -EAGAIN;
1901
1902         if (!adapter->hw.mac.autoneg)
1903                 return -EINVAL;
1904
1905         e1000e_reinit_locked(adapter);
1906
1907         return 0;
1908 }
1909
1910 static void e1000_get_ethtool_stats(struct net_device *netdev,
1911                                     struct ethtool_stats *stats,
1912                                     u64 *data)
1913 {
1914         struct e1000_adapter *adapter = netdev_priv(netdev);
1915         struct rtnl_link_stats64 net_stats;
1916         int i;
1917         char *p = NULL;
1918
1919         e1000e_get_stats64(netdev, &net_stats);
1920         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1921                 switch (e1000_gstrings_stats[i].type) {
1922                 case NETDEV_STATS:
1923                         p = (char *) &net_stats +
1924                                         e1000_gstrings_stats[i].stat_offset;
1925                         break;
1926                 case E1000_STATS:
1927                         p = (char *) adapter +
1928                                         e1000_gstrings_stats[i].stat_offset;
1929                         break;
1930                 default:
1931                         data[i] = 0;
1932                         continue;
1933                 }
1934
1935                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1936                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1937         }
1938 }
1939
1940 static void e1000_get_strings(struct net_device *netdev, u32 stringset,
1941                               u8 *data)
1942 {
1943         u8 *p = data;
1944         int i;
1945
1946         switch (stringset) {
1947         case ETH_SS_TEST:
1948                 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
1949                 break;
1950         case ETH_SS_STATS:
1951                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1952                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1953                                ETH_GSTRING_LEN);
1954                         p += ETH_GSTRING_LEN;
1955                 }
1956                 break;
1957         }
1958 }
1959
1960 static const struct ethtool_ops e1000_ethtool_ops = {
1961         .get_settings           = e1000_get_settings,
1962         .set_settings           = e1000_set_settings,
1963         .get_drvinfo            = e1000_get_drvinfo,
1964         .get_regs_len           = e1000_get_regs_len,
1965         .get_regs               = e1000_get_regs,
1966         .get_wol                = e1000_get_wol,
1967         .set_wol                = e1000_set_wol,
1968         .get_msglevel           = e1000_get_msglevel,
1969         .set_msglevel           = e1000_set_msglevel,
1970         .nway_reset             = e1000_nway_reset,
1971         .get_link               = ethtool_op_get_link,
1972         .get_eeprom_len         = e1000_get_eeprom_len,
1973         .get_eeprom             = e1000_get_eeprom,
1974         .set_eeprom             = e1000_set_eeprom,
1975         .get_ringparam          = e1000_get_ringparam,
1976         .set_ringparam          = e1000_set_ringparam,
1977         .get_pauseparam         = e1000_get_pauseparam,
1978         .set_pauseparam         = e1000_set_pauseparam,
1979         .self_test              = e1000_diag_test,
1980         .get_strings            = e1000_get_strings,
1981         .set_phys_id            = e1000_set_phys_id,
1982         .get_ethtool_stats      = e1000_get_ethtool_stats,
1983         .get_sset_count         = e1000e_get_sset_count,
1984         .get_coalesce           = e1000_get_coalesce,
1985         .set_coalesce           = e1000_set_coalesce,
1986 };
1987
1988 void e1000e_set_ethtool_ops(struct net_device *netdev)
1989 {
1990         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
1991 }