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

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2012 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 #include <linux/vmalloc.h>
  38
  39 #include "e1000.h"
  40
  41 enum {NETDEV_STATS, E1000_STATS};
  42
  43 struct e1000_stats {
  44         char stat_string[ETH_GSTRING_LEN];
  45         int type;
  46         int sizeof_stat;
  47         int stat_offset;
  48 };
  49
  50 #define E1000_STAT(str, m) { \
  51                 .stat_string = str, \
  52                 .type = E1000_STATS, \
  53                 .sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \
  54                 .stat_offset = offsetof(struct e1000_adapter, m) }
  55 #define E1000_NETDEV_STAT(str, m) { \
  56                 .stat_string = str, \
  57                 .type = NETDEV_STATS, \
  58                 .sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \
  59                 .stat_offset = offsetof(struct rtnl_link_stats64, m) }
  60
  61 static const struct e1000_stats e1000_gstrings_stats[] = {
  62         E1000_STAT("rx_packets", stats.gprc),
  63         E1000_STAT("tx_packets", stats.gptc),
  64         E1000_STAT("rx_bytes", stats.gorc),
  65         E1000_STAT("tx_bytes", stats.gotc),
  66         E1000_STAT("rx_broadcast", stats.bprc),
  67         E1000_STAT("tx_broadcast", stats.bptc),
  68         E1000_STAT("rx_multicast", stats.mprc),
  69         E1000_STAT("tx_multicast", stats.mptc),
  70         E1000_NETDEV_STAT("rx_errors", rx_errors),
  71         E1000_NETDEV_STAT("tx_errors", tx_errors),
  72         E1000_NETDEV_STAT("tx_dropped", tx_dropped),
  73         E1000_STAT("multicast", stats.mprc),
  74         E1000_STAT("collisions", stats.colc),
  75         E1000_NETDEV_STAT("rx_length_errors", rx_length_errors),
  76         E1000_NETDEV_STAT("rx_over_errors", rx_over_errors),
  77         E1000_STAT("rx_crc_errors", stats.crcerrs),
  78         E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
  79         E1000_STAT("rx_no_buffer_count", stats.rnbc),
  80         E1000_STAT("rx_missed_errors", stats.mpc),
  81         E1000_STAT("tx_aborted_errors", stats.ecol),
  82         E1000_STAT("tx_carrier_errors", stats.tncrs),
  83         E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
  84         E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
  85         E1000_STAT("tx_window_errors", stats.latecol),
  86         E1000_STAT("tx_abort_late_coll", stats.latecol),
  87         E1000_STAT("tx_deferred_ok", stats.dc),
  88         E1000_STAT("tx_single_coll_ok", stats.scc),
  89         E1000_STAT("tx_multi_coll_ok", stats.mcc),
  90         E1000_STAT("tx_timeout_count", tx_timeout_count),
  91         E1000_STAT("tx_restart_queue", restart_queue),
  92         E1000_STAT("rx_long_length_errors", stats.roc),
  93         E1000_STAT("rx_short_length_errors", stats.ruc),
  94         E1000_STAT("rx_align_errors", stats.algnerrc),
  95         E1000_STAT("tx_tcp_seg_good", stats.tsctc),
  96         E1000_STAT("tx_tcp_seg_failed", stats.tsctfc),
  97         E1000_STAT("rx_flow_control_xon", stats.xonrxc),
  98         E1000_STAT("rx_flow_control_xoff", stats.xoffrxc),
  99         E1000_STAT("tx_flow_control_xon", stats.xontxc),
 100         E1000_STAT("tx_flow_control_xoff", stats.xofftxc),
 101         E1000_STAT("rx_long_byte_count", stats.gorc),
 102         E1000_STAT("rx_csum_offload_good", hw_csum_good),
 103         E1000_STAT("rx_csum_offload_errors", hw_csum_err),
 104         E1000_STAT("rx_header_split", rx_hdr_split),
 105         E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
 106         E1000_STAT("tx_smbus", stats.mgptc),
 107         E1000_STAT("rx_smbus", stats.mgprc),
 108         E1000_STAT("dropped_smbus", stats.mgpdc),
 109         E1000_STAT("rx_dma_failed", rx_dma_failed),
 110         E1000_STAT("tx_dma_failed", tx_dma_failed),
 111 };
 112
 113 #define E1000_GLOBAL_STATS_LEN  ARRAY_SIZE(e1000_gstrings_stats)
 114 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
 115 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 116         "Register test  (offline)", "Eeprom test    (offline)",
 117         "Interrupt test (offline)", "Loopback test  (offline)",
 118         "Link test   (on/offline)"
 119 };
 120 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 121
 122 static int e1000_get_settings(struct net_device *netdev,
 123                               struct ethtool_cmd *ecmd)
 124 {
 125         struct e1000_adapter *adapter = netdev_priv(netdev);
 126         struct e1000_hw *hw = &adapter->hw;
 127         u32 speed;
 128
 129         if (hw->phy.media_type == e1000_media_type_copper) {
 130
 131                 ecmd->supported = (SUPPORTED_10baseT_Half |
 132                                    SUPPORTED_10baseT_Full |
 133                                    SUPPORTED_100baseT_Half |
 134                                    SUPPORTED_100baseT_Full |
 135                                    SUPPORTED_1000baseT_Full |
 136                                    SUPPORTED_Autoneg |
 137                                    SUPPORTED_TP);
 138                 if (hw->phy.type == e1000_phy_ife)
 139                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 140                 ecmd->advertising = ADVERTISED_TP;
 141
 142                 if (hw->mac.autoneg == 1) {
 143                         ecmd->advertising |= ADVERTISED_Autoneg;
 144                         /* the e1000 autoneg seems to match ethtool nicely */
 145                         ecmd->advertising |= hw->phy.autoneg_advertised;
 146                 }
 147
 148                 ecmd->port = PORT_TP;
 149                 ecmd->phy_address = hw->phy.addr;
 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                 ecmd->transceiver = XCVR_EXTERNAL;
 163         }
 164
 165         speed = -1;
 166         ecmd->duplex = -1;
 167
 168         if (netif_running(netdev)) {
 169                 if (netif_carrier_ok(netdev)) {
 170                         speed = adapter->link_speed;
 171                         ecmd->duplex = adapter->link_duplex - 1;
 172                 }
 173         } else {
 174                 u32 status = er32(STATUS);
 175                 if (status & E1000_STATUS_LU) {
 176                         if (status & E1000_STATUS_SPEED_1000)
 177                                 speed = SPEED_1000;
 178                         else if (status & E1000_STATUS_SPEED_100)
 179                                 speed = SPEED_100;
 180                         else
 181                                 speed = SPEED_10;
 182
 183                         if (status & E1000_STATUS_FD)
 184                                 ecmd->duplex = DUPLEX_FULL;
 185                         else
 186                                 ecmd->duplex = DUPLEX_HALF;
 187                 }
 188         }
 189
 190         ethtool_cmd_speed_set(ecmd, speed);
 191         ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 192                          hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 193
 194         /* MDI-X => 2; MDI =>1; Invalid =>0 */
 195         if ((hw->phy.media_type == e1000_media_type_copper) &&
 196             netif_carrier_ok(netdev))
 197                 ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
 198                                                       ETH_TP_MDI;
 199         else
 200                 ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 201
 202         if (hw->phy.mdix == AUTO_ALL_MODES)
 203                 ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 204         else
 205                 ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;
 206
 207         return 0;
 208 }
 209
 210 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 211 {
 212         struct e1000_mac_info *mac = &adapter->hw.mac;
 213
 214         mac->autoneg = 0;
 215
 216         /* Make sure dplx is at most 1 bit and lsb of speed is not set
 217          * for the switch() below to work
 218          */
 219         if ((spd & 1) || (dplx & ~1))
 220                 goto err_inval;
 221
 222         /* Fiber NICs only allow 1000 gbps Full duplex */
 223         if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 224             spd != SPEED_1000 &&
 225             dplx != DUPLEX_FULL) {
 226                 goto err_inval;
 227         }
 228
 229         switch (spd + dplx) {
 230         case SPEED_10 + DUPLEX_HALF:
 231                 mac->forced_speed_duplex = ADVERTISE_10_HALF;
 232                 break;
 233         case SPEED_10 + DUPLEX_FULL:
 234                 mac->forced_speed_duplex = ADVERTISE_10_FULL;
 235                 break;
 236         case SPEED_100 + DUPLEX_HALF:
 237                 mac->forced_speed_duplex = ADVERTISE_100_HALF;
 238                 break;
 239         case SPEED_100 + DUPLEX_FULL:
 240                 mac->forced_speed_duplex = ADVERTISE_100_FULL;
 241                 break;
 242         case SPEED_1000 + DUPLEX_FULL:
 243                 mac->autoneg = 1;
 244                 adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 245                 break;
 246         case SPEED_1000 + DUPLEX_HALF: /* not supported */
 247         default:
 248                 goto err_inval;
 249         }
 250
 251         /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */
 252         adapter->hw.phy.mdix = AUTO_ALL_MODES;
 253
 254         return 0;
 255
 256 err_inval:
 257         e_err("Unsupported Speed/Duplex configuration\n");
 258         return -EINVAL;
 259 }
 260
 261 static int e1000_set_settings(struct net_device *netdev,
 262                               struct ethtool_cmd *ecmd)
 263 {
 264         struct e1000_adapter *adapter = netdev_priv(netdev);
 265         struct e1000_hw *hw = &adapter->hw;
 266
 267         /* When SoL/IDER sessions are active, autoneg/speed/duplex
 268          * cannot be changed
 269          */
 270         if (hw->phy.ops.check_reset_block &&
 271             hw->phy.ops.check_reset_block(hw)) {
 272                 e_err("Cannot change link characteristics when SoL/IDER is active.\n");
 273                 return -EINVAL;
 274         }
 275
 276         /* MDI setting is only allowed when autoneg enabled because
 277          * some hardware doesn't allow MDI setting when speed or
 278          * duplex is forced.
 279          */
 280         if (ecmd->eth_tp_mdix_ctrl) {
 281                 if (hw->phy.media_type != e1000_media_type_copper)
 282                         return -EOPNOTSUPP;
 283
 284                 if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
 285                     (ecmd->autoneg != AUTONEG_ENABLE)) {
 286                         e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
 287                         return -EINVAL;
 288                 }
 289         }
 290
 291         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 292                 usleep_range(1000, 2000);
 293
 294         if (ecmd->autoneg == AUTONEG_ENABLE) {
 295                 hw->mac.autoneg = 1;
 296                 if (hw->phy.media_type == e1000_media_type_fiber)
 297                         hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 298                                                      ADVERTISED_FIBRE |
 299                                                      ADVERTISED_Autoneg;
 300                 else
 301                         hw->phy.autoneg_advertised = ecmd->advertising |
 302                                                      ADVERTISED_TP |
 303                                                      ADVERTISED_Autoneg;
 304                 ecmd->advertising = hw->phy.autoneg_advertised;
 305                 if (adapter->fc_autoneg)
 306                         hw->fc.requested_mode = e1000_fc_default;
 307         } else {
 308                 u32 speed = ethtool_cmd_speed(ecmd);
 309                 /* calling this overrides forced MDI setting */
 310                 if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 311                         clear_bit(__E1000_RESETTING, &adapter->state);
 312                         return -EINVAL;
 313                 }
 314         }
 315
 316         /* MDI-X => 2; MDI => 1; Auto => 3 */
 317         if (ecmd->eth_tp_mdix_ctrl) {
 318                 /* fix up the value for auto (3 => 0) as zero is mapped
 319                  * internally to auto
 320                  */
 321                 if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
 322                         hw->phy.mdix = AUTO_ALL_MODES;
 323                 else
 324                         hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
 325         }
 326
 327         /* reset the link */
 328
 329         if (netif_running(adapter->netdev)) {
 330                 e1000e_down(adapter);
 331                 e1000e_up(adapter);
 332         } else
 333                 e1000e_reset(adapter);
 334
 335         clear_bit(__E1000_RESETTING, &adapter->state);
 336         return 0;
 337 }
 338
 339 static void e1000_get_pauseparam(struct net_device *netdev,
 340                                  struct ethtool_pauseparam *pause)
 341 {
 342         struct e1000_adapter *adapter = netdev_priv(netdev);
 343         struct e1000_hw *hw = &adapter->hw;
 344
 345         pause->autoneg =
 346                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 347
 348         if (hw->fc.current_mode == e1000_fc_rx_pause) {
 349                 pause->rx_pause = 1;
 350         } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 351                 pause->tx_pause = 1;
 352         } else if (hw->fc.current_mode == e1000_fc_full) {
 353                 pause->rx_pause = 1;
 354                 pause->tx_pause = 1;
 355         }
 356 }
 357
 358 static int e1000_set_pauseparam(struct net_device *netdev,
 359                                 struct ethtool_pauseparam *pause)
 360 {
 361         struct e1000_adapter *adapter = netdev_priv(netdev);
 362         struct e1000_hw *hw = &adapter->hw;
 363         int retval = 0;
 364
 365         adapter->fc_autoneg = pause->autoneg;
 366
 367         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 368                 usleep_range(1000, 2000);
 369
 370         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 371                 hw->fc.requested_mode = e1000_fc_default;
 372                 if (netif_running(adapter->netdev)) {
 373                         e1000e_down(adapter);
 374                         e1000e_up(adapter);
 375                 } else {
 376                         e1000e_reset(adapter);
 377                 }
 378         } else {
 379                 if (pause->rx_pause && pause->tx_pause)
 380                         hw->fc.requested_mode = e1000_fc_full;
 381                 else if (pause->rx_pause && !pause->tx_pause)
 382                         hw->fc.requested_mode = e1000_fc_rx_pause;
 383                 else if (!pause->rx_pause && pause->tx_pause)
 384                         hw->fc.requested_mode = e1000_fc_tx_pause;
 385                 else if (!pause->rx_pause && !pause->tx_pause)
 386                         hw->fc.requested_mode = e1000_fc_none;
 387
 388                 hw->fc.current_mode = hw->fc.requested_mode;
 389
 390                 if (hw->phy.media_type == e1000_media_type_fiber) {
 391                         retval = hw->mac.ops.setup_link(hw);
 392                         /* implicit goto out */
 393                 } else {
 394                         retval = e1000e_force_mac_fc(hw);
 395                         if (retval)
 396                                 goto out;
 397                         e1000e_set_fc_watermarks(hw);
 398                 }
 399         }
 400
 401 out:
 402         clear_bit(__E1000_RESETTING, &adapter->state);
 403         return retval;
 404 }
 405
 406 static u32 e1000_get_msglevel(struct net_device *netdev)
 407 {
 408         struct e1000_adapter *adapter = netdev_priv(netdev);
 409         return adapter->msg_enable;
 410 }
 411
 412 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 413 {
 414         struct e1000_adapter *adapter = netdev_priv(netdev);
 415         adapter->msg_enable = data;
 416 }
 417
 418 static int e1000_get_regs_len(struct net_device *netdev)
 419 {
 420 #define E1000_REGS_LEN 32 /* overestimate */
 421         return E1000_REGS_LEN * sizeof(u32);
 422 }
 423
 424 static void e1000_get_regs(struct net_device *netdev,
 425                            struct ethtool_regs *regs, void *p)
 426 {
 427         struct e1000_adapter *adapter = netdev_priv(netdev);
 428         struct e1000_hw *hw = &adapter->hw;
 429         u32 *regs_buff = p;
 430         u16 phy_data;
 431
 432         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 433
 434         regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
 435                         adapter->pdev->device;
 436
 437         regs_buff[0]  = er32(CTRL);
 438         regs_buff[1]  = er32(STATUS);
 439
 440         regs_buff[2]  = er32(RCTL);
 441         regs_buff[3]  = er32(RDLEN(0));
 442         regs_buff[4]  = er32(RDH(0));
 443         regs_buff[5]  = er32(RDT(0));
 444         regs_buff[6]  = er32(RDTR);
 445
 446         regs_buff[7]  = er32(TCTL);
 447         regs_buff[8]  = er32(TDLEN(0));
 448         regs_buff[9]  = er32(TDH(0));
 449         regs_buff[10] = er32(TDT(0));
 450         regs_buff[11] = er32(TIDV);
 451
 452         regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
 453
 454         /* ethtool doesn't use anything past this point, so all this
 455          * code is likely legacy junk for apps that may or may not exist
 456          */
 457         if (hw->phy.type == e1000_phy_m88) {
 458                 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 459                 regs_buff[13] = (u32)phy_data; /* cable length */
 460                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 461                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 462                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 463                 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 464                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 465                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 466                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 467                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 468                 /* phy receive errors */
 469                 regs_buff[22] = adapter->phy_stats.receive_errors;
 470                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 471         }
 472         regs_buff[21] = 0; /* was idle_errors */
 473         e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);
 474         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 475         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 476 }
 477
 478 static int e1000_get_eeprom_len(struct net_device *netdev)
 479 {
 480         struct e1000_adapter *adapter = netdev_priv(netdev);
 481         return adapter->hw.nvm.word_size * 2;
 482 }
 483
 484 static int e1000_get_eeprom(struct net_device *netdev,
 485                             struct ethtool_eeprom *eeprom, u8 *bytes)
 486 {
 487         struct e1000_adapter *adapter = netdev_priv(netdev);
 488         struct e1000_hw *hw = &adapter->hw;
 489         u16 *eeprom_buff;
 490         int first_word;
 491         int last_word;
 492         int ret_val = 0;
 493         u16 i;
 494
 495         if (eeprom->len == 0)
 496                 return -EINVAL;
 497
 498         eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 499
 500         first_word = eeprom->offset >> 1;
 501         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 502
 503         eeprom_buff = kmalloc(sizeof(u16) *
 504                         (last_word - first_word + 1), GFP_KERNEL);
 505         if (!eeprom_buff)
 506                 return -ENOMEM;
 507
 508         if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 509                 ret_val = e1000_read_nvm(hw, first_word,
 510                                          last_word - first_word + 1,
 511                                          eeprom_buff);
 512         } else {
 513                 for (i = 0; i < last_word - first_word + 1; i++) {
 514                         ret_val = e1000_read_nvm(hw, first_word + i, 1,
 515                                                       &eeprom_buff[i]);
 516                         if (ret_val)
 517                                 break;
 518                 }
 519         }
 520
 521         if (ret_val) {
 522                 /* a read error occurred, throw away the result */
 523                 memset(eeprom_buff, 0xff, sizeof(u16) *
 524                        (last_word - first_word + 1));
 525         } else {
 526                 /* Device's eeprom is always little-endian, word addressable */
 527                 for (i = 0; i < last_word - first_word + 1; i++)
 528                         le16_to_cpus(&eeprom_buff[i]);
 529         }
 530
 531         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 532         kfree(eeprom_buff);
 533
 534         return ret_val;
 535 }
 536
 537 static int e1000_set_eeprom(struct net_device *netdev,
 538                             struct ethtool_eeprom *eeprom, u8 *bytes)
 539 {
 540         struct e1000_adapter *adapter = netdev_priv(netdev);
 541         struct e1000_hw *hw = &adapter->hw;
 542         u16 *eeprom_buff;
 543         void *ptr;
 544         int max_len;
 545         int first_word;
 546         int last_word;
 547         int ret_val = 0;
 548         u16 i;
 549
 550         if (eeprom->len == 0)
 551                 return -EOPNOTSUPP;
 552
 553         if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 554                 return -EFAULT;
 555
 556         if (adapter->flags & FLAG_READ_ONLY_NVM)
 557                 return -EINVAL;
 558
 559         max_len = hw->nvm.word_size * 2;
 560
 561         first_word = eeprom->offset >> 1;
 562         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 563         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 564         if (!eeprom_buff)
 565                 return -ENOMEM;
 566
 567         ptr = (void *)eeprom_buff;
 568
 569         if (eeprom->offset & 1) {
 570                 /* need read/modify/write of first changed EEPROM word */
 571                 /* only the second byte of the word is being modified */
 572                 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 573                 ptr++;
 574         }
 575         if (((eeprom->offset + eeprom->len) & 1) && (!ret_val))
 576                 /* need read/modify/write of last changed EEPROM word */
 577                 /* only the first byte of the word is being modified */
 578                 ret_val = e1000_read_nvm(hw, last_word, 1,
 579                                   &eeprom_buff[last_word - first_word]);
 580
 581         if (ret_val)
 582                 goto out;
 583
 584         /* Device's eeprom is always little-endian, word addressable */
 585         for (i = 0; i < last_word - first_word + 1; i++)
 586                 le16_to_cpus(&eeprom_buff[i]);
 587
 588         memcpy(ptr, bytes, eeprom->len);
 589
 590         for (i = 0; i < last_word - first_word + 1; i++)
 591                 cpu_to_le16s(&eeprom_buff[i]);
 592
 593         ret_val = e1000_write_nvm(hw, first_word,
 594                                   last_word - first_word + 1, eeprom_buff);
 595
 596         if (ret_val)
 597                 goto out;
 598
 599         /* Update the checksum over the first part of the EEPROM if needed
 600          * and flush shadow RAM for applicable controllers
 601          */
 602         if ((first_word <= NVM_CHECKSUM_REG) ||
 603             (hw->mac.type == e1000_82583) ||
 604             (hw->mac.type == e1000_82574) ||
 605             (hw->mac.type == e1000_82573))
 606                 ret_val = e1000e_update_nvm_checksum(hw);
 607
 608 out:
 609         kfree(eeprom_buff);
 610         return ret_val;
 611 }
 612
 613 static void e1000_get_drvinfo(struct net_device *netdev,
 614                               struct ethtool_drvinfo *drvinfo)
 615 {
 616         struct e1000_adapter *adapter = netdev_priv(netdev);
 617
 618         strlcpy(drvinfo->driver,  e1000e_driver_name,
 619                 sizeof(drvinfo->driver));
 620         strlcpy(drvinfo->version, e1000e_driver_version,
 621                 sizeof(drvinfo->version));
 622
 623         /* EEPROM image version # is reported as firmware version # for
 624          * PCI-E controllers
 625          */
 626         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
 627                 "%d.%d-%d",
 628                 (adapter->eeprom_vers & 0xF000) >> 12,
 629                 (adapter->eeprom_vers & 0x0FF0) >> 4,
 630                 (adapter->eeprom_vers & 0x000F));
 631
 632         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 633                 sizeof(drvinfo->bus_info));
 634         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 635         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 636 }
 637
 638 static void e1000_get_ringparam(struct net_device *netdev,
 639                                 struct ethtool_ringparam *ring)
 640 {
 641         struct e1000_adapter *adapter = netdev_priv(netdev);
 642
 643         ring->rx_max_pending = E1000_MAX_RXD;
 644         ring->tx_max_pending = E1000_MAX_TXD;
 645         ring->rx_pending = adapter->rx_ring_count;
 646         ring->tx_pending = adapter->tx_ring_count;
 647 }
 648
 649 static int e1000_set_ringparam(struct net_device *netdev,
 650                                struct ethtool_ringparam *ring)
 651 {
 652         struct e1000_adapter *adapter = netdev_priv(netdev);
 653         struct e1000_ring *temp_tx = NULL, *temp_rx = NULL;
 654         int err = 0, size = sizeof(struct e1000_ring);
 655         bool set_tx = false, set_rx = false;
 656         u16 new_rx_count, new_tx_count;
 657
 658         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 659                 return -EINVAL;
 660
 661         new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD,
 662                                E1000_MAX_RXD);
 663         new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 664
 665         new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD,
 666                                E1000_MAX_TXD);
 667         new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 668
 669         if ((new_tx_count == adapter->tx_ring_count) &&
 670             (new_rx_count == adapter->rx_ring_count))
 671                 /* nothing to do */
 672                 return 0;
 673
 674         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 675                 usleep_range(1000, 2000);
 676
 677         if (!netif_running(adapter->netdev)) {
 678                 /* Set counts now and allocate resources during open() */
 679                 adapter->tx_ring->count = new_tx_count;
 680                 adapter->rx_ring->count = new_rx_count;
 681                 adapter->tx_ring_count = new_tx_count;
 682                 adapter->rx_ring_count = new_rx_count;
 683                 goto clear_reset;
 684         }
 685
 686         set_tx = (new_tx_count != adapter->tx_ring_count);
 687         set_rx = (new_rx_count != adapter->rx_ring_count);
 688
 689         /* Allocate temporary storage for ring updates */
 690         if (set_tx) {
 691                 temp_tx = vmalloc(size);
 692                 if (!temp_tx) {
 693                         err = -ENOMEM;
 694                         goto free_temp;
 695                 }
 696         }
 697         if (set_rx) {
 698                 temp_rx = vmalloc(size);
 699                 if (!temp_rx) {
 700                         err = -ENOMEM;
 701                         goto free_temp;
 702                 }
 703         }
 704
 705         e1000e_down(adapter);
 706
 707         /* We can't just free everything and then setup again, because the
 708          * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring
 709          * structs.  First, attempt to allocate new resources...
 710          */
 711         if (set_tx) {
 712                 memcpy(temp_tx, adapter->tx_ring, size);
 713                 temp_tx->count = new_tx_count;
 714                 err = e1000e_setup_tx_resources(temp_tx);
 715                 if (err)
 716                         goto err_setup;
 717         }
 718         if (set_rx) {
 719                 memcpy(temp_rx, adapter->rx_ring, size);
 720                 temp_rx->count = new_rx_count;
 721                 err = e1000e_setup_rx_resources(temp_rx);
 722                 if (err)
 723                         goto err_setup_rx;
 724         }
 725
 726         /* ...then free the old resources and copy back any new ring data */
 727         if (set_tx) {
 728                 e1000e_free_tx_resources(adapter->tx_ring);
 729                 memcpy(adapter->tx_ring, temp_tx, size);
 730                 adapter->tx_ring_count = new_tx_count;
 731         }
 732         if (set_rx) {
 733                 e1000e_free_rx_resources(adapter->rx_ring);
 734                 memcpy(adapter->rx_ring, temp_rx, size);
 735                 adapter->rx_ring_count = new_rx_count;
 736         }
 737
 738 err_setup_rx:
 739         if (err && set_tx)
 740                 e1000e_free_tx_resources(temp_tx);
 741 err_setup:
 742         e1000e_up(adapter);
 743 free_temp:
 744         vfree(temp_tx);
 745         vfree(temp_rx);
 746 clear_reset:
 747         clear_bit(__E1000_RESETTING, &adapter->state);
 748         return err;
 749 }
 750
 751 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 752                              int reg, int offset, u32 mask, u32 write)
 753 {
 754         u32 pat, val;
 755         static const u32 test[] = {
 756                 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 757         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 758                 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 759                                       (test[pat] & write));
 760                 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 761                 if (val != (test[pat] & write & mask)) {
 762                         e_err("pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
 763                               reg + offset, val, (test[pat] & write & mask));
 764                         *data = reg;
 765                         return 1;
 766                 }
 767         }
 768         return 0;
 769 }
 770
 771 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 772                               int reg, u32 mask, u32 write)
 773 {
 774         u32 val;
 775         __ew32(&adapter->hw, reg, write & mask);
 776         val = __er32(&adapter->hw, reg);
 777         if ((write & mask) != (val & mask)) {
 778                 e_err("set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
 779                       reg, (val & mask), (write & mask));
 780                 *data = reg;
 781                 return 1;
 782         }
 783         return 0;
 784 }
 785 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 786         do {                                                                   \
 787                 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 788                         return 1;                                              \
 789         } while (0)
 790 #define REG_PATTERN_TEST(reg, mask, write)                                     \
 791         REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 792
 793 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
 794         do {                                                                   \
 795                 if (reg_set_and_check(adapter, data, reg, mask, write))        \
 796                         return 1;                                              \
 797         } while (0)
 798
 799 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 800 {
 801         struct e1000_hw *hw = &adapter->hw;
 802         struct e1000_mac_info *mac = &adapter->hw.mac;
 803         u32 value;
 804         u32 before;
 805         u32 after;
 806         u32 i;
 807         u32 toggle;
 808         u32 mask;
 809         u32 wlock_mac = 0;
 810
 811         /* The status register is Read Only, so a write should fail.
 812          * Some bits that get toggled are ignored.
 813          */
 814         switch (mac->type) {
 815         /* there are several bits on newer hardware that are r/w */
 816         case e1000_82571:
 817         case e1000_82572:
 818         case e1000_80003es2lan:
 819                 toggle = 0x7FFFF3FF;
 820                 break;
 821         default:
 822                 toggle = 0x7FFFF033;
 823                 break;
 824         }
 825
 826         before = er32(STATUS);
 827         value = (er32(STATUS) & toggle);
 828         ew32(STATUS, toggle);
 829         after = er32(STATUS) & toggle;
 830         if (value != after) {
 831                 e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n",
 832                       after, value);
 833                 *data = 1;
 834                 return 1;
 835         }
 836         /* restore previous status */
 837         ew32(STATUS, before);
 838
 839         if (!(adapter->flags & FLAG_IS_ICH)) {
 840                 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 841                 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 842                 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 843                 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 844         }
 845
 846         REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 847         REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 848         REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF);
 849         REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF);
 850         REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF);
 851         REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 852         REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 853         REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 854         REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF);
 855         REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF);
 856
 857         REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 858
 859         before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 860         REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 861         REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 862
 863         REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 864         REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 865         if (!(adapter->flags & FLAG_IS_ICH))
 866                 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 867         REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF);
 868         REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 869         mask = 0x8003FFFF;
 870         switch (mac->type) {
 871         case e1000_ich10lan:
 872         case e1000_pchlan:
 873         case e1000_pch2lan:
 874         case e1000_pch_lpt:
 875                 mask |= (1 << 18);
 876                 break;
 877         default:
 878                 break;
 879         }
 880
 881         if (mac->type == e1000_pch_lpt)
 882                 wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >>
 883                     E1000_FWSM_WLOCK_MAC_SHIFT;
 884
 885         for (i = 0; i < mac->rar_entry_count; i++) {
 886                 /* Cannot test write-protected SHRAL[n] registers */
 887                 if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac)))
 888                         continue;
 889
 890                 REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1),
 891                                        mask, 0xFFFFFFFF);
 892         }
 893
 894         for (i = 0; i < mac->mta_reg_count; i++)
 895                 REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 896
 897         *data = 0;
 898
 899         return 0;
 900 }
 901
 902 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 903 {
 904         u16 temp;
 905         u16 checksum = 0;
 906         u16 i;
 907
 908         *data = 0;
 909         /* Read and add up the contents of the EEPROM */
 910         for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 911                 if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 912                         *data = 1;
 913                         return *data;
 914                 }
 915                 checksum += temp;
 916         }
 917
 918         /* If Checksum is not Correct return error else test passed */
 919         if ((checksum != (u16) NVM_SUM) && !(*data))
 920                 *data = 2;
 921
 922         return *data;
 923 }
 924
 925 static irqreturn_t e1000_test_intr(int irq, void *data)
 926 {
 927         struct net_device *netdev = (struct net_device *) data;
 928         struct e1000_adapter *adapter = netdev_priv(netdev);
 929         struct e1000_hw *hw = &adapter->hw;
 930
 931         adapter->test_icr |= er32(ICR);
 932
 933         return IRQ_HANDLED;
 934 }
 935
 936 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 937 {
 938         struct net_device *netdev = adapter->netdev;
 939         struct e1000_hw *hw = &adapter->hw;
 940         u32 mask;
 941         u32 shared_int = 1;
 942         u32 irq = adapter->pdev->irq;
 943         int i;
 944         int ret_val = 0;
 945         int int_mode = E1000E_INT_MODE_LEGACY;
 946
 947         *data = 0;
 948
 949         /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
 950         if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
 951                 int_mode = adapter->int_mode;
 952                 e1000e_reset_interrupt_capability(adapter);
 953                 adapter->int_mode = E1000E_INT_MODE_LEGACY;
 954                 e1000e_set_interrupt_capability(adapter);
 955         }
 956         /* Hook up test interrupt handler just for this test */
 957         if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 958                          netdev)) {
 959                 shared_int = 0;
 960         } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED,
 961                  netdev->name, netdev)) {
 962                 *data = 1;
 963                 ret_val = -1;
 964                 goto out;
 965         }
 966         e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
 967
 968         /* Disable all the interrupts */
 969         ew32(IMC, 0xFFFFFFFF);
 970         e1e_flush();
 971         usleep_range(10000, 20000);
 972
 973         /* Test each interrupt */
 974         for (i = 0; i < 10; i++) {
 975                 /* Interrupt to test */
 976                 mask = 1 << i;
 977
 978                 if (adapter->flags & FLAG_IS_ICH) {
 979                         switch (mask) {
 980                         case E1000_ICR_RXSEQ:
 981                                 continue;
 982                         case 0x00000100:
 983                                 if (adapter->hw.mac.type == e1000_ich8lan ||
 984                                     adapter->hw.mac.type == e1000_ich9lan)
 985                                         continue;
 986                                 break;
 987                         default:
 988                                 break;
 989                         }
 990                 }
 991
 992                 if (!shared_int) {
 993                         /* Disable the interrupt to be reported in
 994                          * the cause register and then force the same
 995                          * interrupt and see if one gets posted.  If
 996                          * an interrupt was posted to the bus, the
 997                          * test failed.
 998                          */
 999                         adapter->test_icr = 0;
1000                         ew32(IMC, mask);
1001                         ew32(ICS, mask);
1002                         e1e_flush();
1003                         usleep_range(10000, 20000);
1004
1005                         if (adapter->test_icr & mask) {
1006                                 *data = 3;
1007                                 break;
1008                         }
1009                 }
1010
1011                 /* Enable the interrupt to be reported in
1012                  * the cause register and then force the same
1013                  * interrupt and see if one gets posted.  If
1014                  * an interrupt was not posted to the bus, the
1015                  * test failed.
1016                  */
1017                 adapter->test_icr = 0;
1018                 ew32(IMS, mask);
1019                 ew32(ICS, mask);
1020                 e1e_flush();
1021                 usleep_range(10000, 20000);
1022
1023                 if (!(adapter->test_icr & mask)) {
1024                         *data = 4;
1025                         break;
1026                 }
1027
1028                 if (!shared_int) {
1029                         /* Disable the other interrupts to be reported in
1030                          * the cause register and then force the other
1031                          * interrupts and see if any get posted.  If
1032                          * an interrupt was posted to the bus, the
1033                          * test failed.
1034                          */
1035                         adapter->test_icr = 0;
1036                         ew32(IMC, ~mask & 0x00007FFF);
1037                         ew32(ICS, ~mask & 0x00007FFF);
1038                         e1e_flush();
1039                         usleep_range(10000, 20000);
1040
1041                         if (adapter->test_icr) {
1042                                 *data = 5;
1043                                 break;
1044                         }
1045                 }
1046         }
1047
1048         /* Disable all the interrupts */
1049         ew32(IMC, 0xFFFFFFFF);
1050         e1e_flush();
1051         usleep_range(10000, 20000);
1052
1053         /* Unhook test interrupt handler */
1054         free_irq(irq, netdev);
1055
1056 out:
1057         if (int_mode == E1000E_INT_MODE_MSIX) {
1058                 e1000e_reset_interrupt_capability(adapter);
1059                 adapter->int_mode = int_mode;
1060                 e1000e_set_interrupt_capability(adapter);
1061         }
1062
1063         return ret_val;
1064 }
1065
1066 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1067 {
1068         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1069         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1070         struct pci_dev *pdev = adapter->pdev;
1071         int i;
1072
1073         if (tx_ring->desc && tx_ring->buffer_info) {
1074                 for (i = 0; i < tx_ring->count; i++) {
1075                         if (tx_ring->buffer_info[i].dma)
1076                                 dma_unmap_single(&pdev->dev,
1077                                         tx_ring->buffer_info[i].dma,
1078                                         tx_ring->buffer_info[i].length,
1079                                         DMA_TO_DEVICE);
1080                         if (tx_ring->buffer_info[i].skb)
1081                                 dev_kfree_skb(tx_ring->buffer_info[i].skb);
1082                 }
1083         }
1084
1085         if (rx_ring->desc && rx_ring->buffer_info) {
1086                 for (i = 0; i < rx_ring->count; i++) {
1087                         if (rx_ring->buffer_info[i].dma)
1088                                 dma_unmap_single(&pdev->dev,
1089                                         rx_ring->buffer_info[i].dma,
1090                                         2048, DMA_FROM_DEVICE);
1091                         if (rx_ring->buffer_info[i].skb)
1092                                 dev_kfree_skb(rx_ring->buffer_info[i].skb);
1093                 }
1094         }
1095
1096         if (tx_ring->desc) {
1097                 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1098                                   tx_ring->dma);
1099                 tx_ring->desc = NULL;
1100         }
1101         if (rx_ring->desc) {
1102                 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1103                                   rx_ring->dma);
1104                 rx_ring->desc = NULL;
1105         }
1106
1107         kfree(tx_ring->buffer_info);
1108         tx_ring->buffer_info = NULL;
1109         kfree(rx_ring->buffer_info);
1110         rx_ring->buffer_info = NULL;
1111 }
1112
1113 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1114 {
1115         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1116         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1117         struct pci_dev *pdev = adapter->pdev;
1118         struct e1000_hw *hw = &adapter->hw;
1119         u32 rctl;
1120         int i;
1121         int ret_val;
1122
1123         /* Setup Tx descriptor ring and Tx buffers */
1124
1125         if (!tx_ring->count)
1126                 tx_ring->count = E1000_DEFAULT_TXD;
1127
1128         tx_ring->buffer_info = kcalloc(tx_ring->count,
1129                                        sizeof(struct e1000_buffer),
1130                                        GFP_KERNEL);
1131         if (!tx_ring->buffer_info) {
1132                 ret_val = 1;
1133                 goto err_nomem;
1134         }
1135
1136         tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1137         tx_ring->size = ALIGN(tx_ring->size, 4096);
1138         tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1139                                            &tx_ring->dma, GFP_KERNEL);
1140         if (!tx_ring->desc) {
1141                 ret_val = 2;
1142                 goto err_nomem;
1143         }
1144         tx_ring->next_to_use = 0;
1145         tx_ring->next_to_clean = 0;
1146
1147         ew32(TDBAL(0), ((u64) tx_ring->dma & 0x00000000FFFFFFFF));
1148         ew32(TDBAH(0), ((u64) tx_ring->dma >> 32));
1149         ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc));
1150         ew32(TDH(0), 0);
1151         ew32(TDT(0), 0);
1152         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1153              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1154              E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1155
1156         for (i = 0; i < tx_ring->count; i++) {
1157                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1158                 struct sk_buff *skb;
1159                 unsigned int skb_size = 1024;
1160
1161                 skb = alloc_skb(skb_size, GFP_KERNEL);
1162                 if (!skb) {
1163                         ret_val = 3;
1164                         goto err_nomem;
1165                 }
1166                 skb_put(skb, skb_size);
1167                 tx_ring->buffer_info[i].skb = skb;
1168                 tx_ring->buffer_info[i].length = skb->len;
1169                 tx_ring->buffer_info[i].dma =
1170                         dma_map_single(&pdev->dev, skb->data, skb->len,
1171                                        DMA_TO_DEVICE);
1172                 if (dma_mapping_error(&pdev->dev,
1173                                       tx_ring->buffer_info[i].dma)) {
1174                         ret_val = 4;
1175                         goto err_nomem;
1176                 }
1177                 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1178                 tx_desc->lower.data = cpu_to_le32(skb->len);
1179                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1180                                                    E1000_TXD_CMD_IFCS |
1181                                                    E1000_TXD_CMD_RS);
1182                 tx_desc->upper.data = 0;
1183         }
1184
1185         /* Setup Rx descriptor ring and Rx buffers */
1186
1187         if (!rx_ring->count)
1188                 rx_ring->count = E1000_DEFAULT_RXD;
1189
1190         rx_ring->buffer_info = kcalloc(rx_ring->count,
1191                                        sizeof(struct e1000_buffer),
1192                                        GFP_KERNEL);
1193         if (!rx_ring->buffer_info) {
1194                 ret_val = 5;
1195                 goto err_nomem;
1196         }
1197
1198         rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended);
1199         rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1200                                            &rx_ring->dma, GFP_KERNEL);
1201         if (!rx_ring->desc) {
1202                 ret_val = 6;
1203                 goto err_nomem;
1204         }
1205         rx_ring->next_to_use = 0;
1206         rx_ring->next_to_clean = 0;
1207
1208         rctl = er32(RCTL);
1209         if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
1210                 ew32(RCTL, rctl & ~E1000_RCTL_EN);
1211         ew32(RDBAL(0), ((u64) rx_ring->dma & 0xFFFFFFFF));
1212         ew32(RDBAH(0), ((u64) rx_ring->dma >> 32));
1213         ew32(RDLEN(0), rx_ring->size);
1214         ew32(RDH(0), 0);
1215         ew32(RDT(0), 0);
1216         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1217                 E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1218                 E1000_RCTL_SBP | E1000_RCTL_SECRC |
1219                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1220                 (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1221         ew32(RCTL, rctl);
1222
1223         for (i = 0; i < rx_ring->count; i++) {
1224                 union e1000_rx_desc_extended *rx_desc;
1225                 struct sk_buff *skb;
1226
1227                 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1228                 if (!skb) {
1229                         ret_val = 7;
1230                         goto err_nomem;
1231                 }
1232                 skb_reserve(skb, NET_IP_ALIGN);
1233                 rx_ring->buffer_info[i].skb = skb;
1234                 rx_ring->buffer_info[i].dma =
1235                         dma_map_single(&pdev->dev, skb->data, 2048,
1236                                        DMA_FROM_DEVICE);
1237                 if (dma_mapping_error(&pdev->dev,
1238                                       rx_ring->buffer_info[i].dma)) {
1239                         ret_val = 8;
1240                         goto err_nomem;
1241                 }
1242                 rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
1243                 rx_desc->read.buffer_addr =
1244                     cpu_to_le64(rx_ring->buffer_info[i].dma);
1245                 memset(skb->data, 0x00, skb->len);
1246         }
1247
1248         return 0;
1249
1250 err_nomem:
1251         e1000_free_desc_rings(adapter);
1252         return ret_val;
1253 }
1254
1255 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1256 {
1257         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1258         e1e_wphy(&adapter->hw, 29, 0x001F);
1259         e1e_wphy(&adapter->hw, 30, 0x8FFC);
1260         e1e_wphy(&adapter->hw, 29, 0x001A);
1261         e1e_wphy(&adapter->hw, 30, 0x8FF0);
1262 }
1263
1264 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1265 {
1266         struct e1000_hw *hw = &adapter->hw;
1267         u32 ctrl_reg = 0;
1268         u16 phy_reg = 0;
1269         s32 ret_val = 0;
1270
1271         hw->mac.autoneg = 0;
1272
1273         if (hw->phy.type == e1000_phy_ife) {
1274                 /* force 100, set loopback */
1275                 e1e_wphy(hw, PHY_CONTROL, 0x6100);
1276
1277                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1278                 ctrl_reg = er32(CTRL);
1279                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1280                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1281                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1282                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1283                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1284
1285                 ew32(CTRL, ctrl_reg);
1286                 e1e_flush();
1287                 udelay(500);
1288
1289                 return 0;
1290         }
1291
1292         /* Specific PHY configuration for loopback */
1293         switch (hw->phy.type) {
1294         case e1000_phy_m88:
1295                 /* Auto-MDI/MDIX Off */
1296                 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1297                 /* reset to update Auto-MDI/MDIX */
1298                 e1e_wphy(hw, PHY_CONTROL, 0x9140);
1299                 /* autoneg off */
1300                 e1e_wphy(hw, PHY_CONTROL, 0x8140);
1301                 break;
1302         case e1000_phy_gg82563:
1303                 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1304                 break;
1305         case e1000_phy_bm:
1306                 /* Set Default MAC Interface speed to 1GB */
1307                 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1308                 phy_reg &= ~0x0007;
1309                 phy_reg |= 0x006;
1310                 e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1311                 /* Assert SW reset for above settings to take effect */
1312                 e1000e_commit_phy(hw);
1313                 mdelay(1);
1314                 /* Force Full Duplex */
1315                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1316                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1317                 /* Set Link Up (in force link) */
1318                 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1319                 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1320                 /* Force Link */
1321                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1322                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1323                 /* Set Early Link Enable */
1324                 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1325                 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1326                 break;
1327         case e1000_phy_82577:
1328         case e1000_phy_82578:
1329                 /* Workaround: K1 must be disabled for stable 1Gbps operation */
1330                 ret_val = hw->phy.ops.acquire(hw);
1331                 if (ret_val) {
1332                         e_err("Cannot setup 1Gbps loopback.\n");
1333                         return ret_val;
1334                 }
1335                 e1000_configure_k1_ich8lan(hw, false);
1336                 hw->phy.ops.release(hw);
1337                 break;
1338         case e1000_phy_82579:
1339                 /* Disable PHY energy detect power down */
1340                 e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
1341                 e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~(1 << 3));
1342                 /* Disable full chip energy detect */
1343                 e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
1344                 e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
1345                 /* Enable loopback on the PHY */
1346 #define I82577_PHY_LBK_CTRL          19
1347                 e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001);
1348                 break;
1349         default:
1350                 break;
1351         }
1352
1353         /* force 1000, set loopback */
1354         e1e_wphy(hw, PHY_CONTROL, 0x4140);
1355         mdelay(250);
1356
1357         /* Now set up the MAC to the same speed/duplex as the PHY. */
1358         ctrl_reg = er32(CTRL);
1359         ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1360         ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1361                      E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1362                      E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1363                      E1000_CTRL_FD);     /* Force Duplex to FULL */
1364
1365         if (adapter->flags & FLAG_IS_ICH)
1366                 ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1367
1368         if (hw->phy.media_type == e1000_media_type_copper &&
1369             hw->phy.type == e1000_phy_m88) {
1370                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1371         } else {
1372                 /* Set the ILOS bit on the fiber Nic if half duplex link is
1373                  * detected.
1374                  */
1375                 if ((er32(STATUS) & E1000_STATUS_FD) == 0)
1376                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1377         }
1378
1379         ew32(CTRL, ctrl_reg);
1380
1381         /* Disable the receiver on the PHY so when a cable is plugged in, the
1382          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1383          */
1384         if (hw->phy.type == e1000_phy_m88)
1385                 e1000_phy_disable_receiver(adapter);
1386
1387         udelay(500);
1388
1389         return 0;
1390 }
1391
1392 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1393 {
1394         struct e1000_hw *hw = &adapter->hw;
1395         u32 ctrl = er32(CTRL);
1396         int link = 0;
1397
1398         /* special requirements for 82571/82572 fiber adapters */
1399
1400         /* jump through hoops to make sure link is up because serdes
1401          * link is hardwired up
1402          */
1403         ctrl |= E1000_CTRL_SLU;
1404         ew32(CTRL, ctrl);
1405
1406         /* disable autoneg */
1407         ctrl = er32(TXCW);
1408         ctrl &= ~(1 << 31);
1409         ew32(TXCW, ctrl);
1410
1411         link = (er32(STATUS) & E1000_STATUS_LU);
1412
1413         if (!link) {
1414                 /* set invert loss of signal */
1415                 ctrl = er32(CTRL);
1416                 ctrl |= E1000_CTRL_ILOS;
1417                 ew32(CTRL, ctrl);
1418         }
1419
1420         /* special write to serdes control register to enable SerDes analog
1421          * loopback
1422          */
1423 #define E1000_SERDES_LB_ON 0x410
1424         ew32(SCTL, E1000_SERDES_LB_ON);
1425         e1e_flush();
1426         usleep_range(10000, 20000);
1427
1428         return 0;
1429 }
1430
1431 /* only call this for fiber/serdes connections to es2lan */
1432 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1433 {
1434         struct e1000_hw *hw = &adapter->hw;
1435         u32 ctrlext = er32(CTRL_EXT);
1436         u32 ctrl = er32(CTRL);
1437
1438         /* save CTRL_EXT to restore later, reuse an empty variable (unused
1439          * on mac_type 80003es2lan)
1440          */
1441         adapter->tx_fifo_head = ctrlext;
1442
1443         /* clear the serdes mode bits, putting the device into mac loopback */
1444         ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1445         ew32(CTRL_EXT, ctrlext);
1446
1447         /* force speed to 1000/FD, link up */
1448         ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1449         ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1450                  E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1451         ew32(CTRL, ctrl);
1452
1453         /* set mac loopback */
1454         ctrl = er32(RCTL);
1455         ctrl |= E1000_RCTL_LBM_MAC;
1456         ew32(RCTL, ctrl);
1457
1458         /* set testing mode parameters (no need to reset later) */
1459 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1460 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1461         ew32(KMRNCTRLSTA,
1462              (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1463
1464         return 0;
1465 }
1466
1467 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1468 {
1469         struct e1000_hw *hw = &adapter->hw;
1470         u32 rctl;
1471
1472         if (hw->phy.media_type == e1000_media_type_fiber ||
1473             hw->phy.media_type == e1000_media_type_internal_serdes) {
1474                 switch (hw->mac.type) {
1475                 case e1000_80003es2lan:
1476                         return e1000_set_es2lan_mac_loopback(adapter);
1477                         break;
1478                 case e1000_82571:
1479                 case e1000_82572:
1480                         return e1000_set_82571_fiber_loopback(adapter);
1481                         break;
1482                 default:
1483                         rctl = er32(RCTL);
1484                         rctl |= E1000_RCTL_LBM_TCVR;
1485                         ew32(RCTL, rctl);
1486                         return 0;
1487                 }
1488         } else if (hw->phy.media_type == e1000_media_type_copper) {
1489                 return e1000_integrated_phy_loopback(adapter);
1490         }
1491
1492         return 7;
1493 }
1494
1495 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1496 {
1497         struct e1000_hw *hw = &adapter->hw;
1498         u32 rctl;
1499         u16 phy_reg;
1500
1501         rctl = er32(RCTL);
1502         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1503         ew32(RCTL, rctl);
1504
1505         switch (hw->mac.type) {
1506         case e1000_80003es2lan:
1507                 if (hw->phy.media_type == e1000_media_type_fiber ||
1508                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1509                         /* restore CTRL_EXT, stealing space from tx_fifo_head */
1510                         ew32(CTRL_EXT, adapter->tx_fifo_head);
1511                         adapter->tx_fifo_head = 0;
1512                 }
1513                 /* fall through */
1514         case e1000_82571:
1515         case e1000_82572:
1516                 if (hw->phy.media_type == e1000_media_type_fiber ||
1517                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1518 #define E1000_SERDES_LB_OFF 0x400
1519                         ew32(SCTL, E1000_SERDES_LB_OFF);
1520                         e1e_flush();
1521                         usleep_range(10000, 20000);
1522                         break;
1523                 }
1524                 /* Fall Through */
1525         default:
1526                 hw->mac.autoneg = 1;
1527                 if (hw->phy.type == e1000_phy_gg82563)
1528                         e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1529                 e1e_rphy(hw, PHY_CONTROL, &phy_reg);
1530                 if (phy_reg & MII_CR_LOOPBACK) {
1531                         phy_reg &= ~MII_CR_LOOPBACK;
1532                         e1e_wphy(hw, PHY_CONTROL, phy_reg);
1533                         e1000e_commit_phy(hw);
1534                 }
1535                 break;
1536         }
1537 }
1538
1539 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1540                                       unsigned int frame_size)
1541 {
1542         memset(skb->data, 0xFF, frame_size);
1543         frame_size &= ~1;
1544         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1545         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1546         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1547 }
1548
1549 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1550                                     unsigned int frame_size)
1551 {
1552         frame_size &= ~1;
1553         if (*(skb->data + 3) == 0xFF)
1554                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1555                    (*(skb->data + frame_size / 2 + 12) == 0xAF))
1556                         return 0;
1557         return 13;
1558 }
1559
1560 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1561 {
1562         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1563         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1564         struct pci_dev *pdev = adapter->pdev;
1565         struct e1000_hw *hw = &adapter->hw;
1566         int i, j, k, l;
1567         int lc;
1568         int good_cnt;
1569         int ret_val = 0;
1570         unsigned long time;
1571
1572         ew32(RDT(0), rx_ring->count - 1);
1573
1574         /* Calculate the loop count based on the largest descriptor ring
1575          * The idea is to wrap the largest ring a number of times using 64
1576          * send/receive pairs during each loop
1577          */
1578
1579         if (rx_ring->count <= tx_ring->count)
1580                 lc = ((tx_ring->count / 64) * 2) + 1;
1581         else
1582                 lc = ((rx_ring->count / 64) * 2) + 1;
1583
1584         k = 0;
1585         l = 0;
1586         for (j = 0; j <= lc; j++) { /* loop count loop */
1587                 for (i = 0; i < 64; i++) { /* send the packets */
1588                         e1000_create_lbtest_frame(tx_ring->buffer_info[k].skb,
1589                                                   1024);
1590                         dma_sync_single_for_device(&pdev->dev,
1591                                         tx_ring->buffer_info[k].dma,
1592                                         tx_ring->buffer_info[k].length,
1593                                         DMA_TO_DEVICE);
1594                         k++;
1595                         if (k == tx_ring->count)
1596                                 k = 0;
1597                 }
1598                 ew32(TDT(0), k);
1599                 e1e_flush();
1600                 msleep(200);
1601                 time = jiffies; /* set the start time for the receive */
1602                 good_cnt = 0;
1603                 do { /* receive the sent packets */
1604                         dma_sync_single_for_cpu(&pdev->dev,
1605                                         rx_ring->buffer_info[l].dma, 2048,
1606                                         DMA_FROM_DEVICE);
1607
1608                         ret_val = e1000_check_lbtest_frame(
1609                                         rx_ring->buffer_info[l].skb, 1024);
1610                         if (!ret_val)
1611                                 good_cnt++;
1612                         l++;
1613                         if (l == rx_ring->count)
1614                                 l = 0;
1615                         /* time + 20 msecs (200 msecs on 2.4) is more than
1616                          * enough time to complete the receives, if it's
1617                          * exceeded, break and error off
1618                          */
1619                 } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1620                 if (good_cnt != 64) {
1621                         ret_val = 13; /* ret_val is the same as mis-compare */
1622                         break;
1623                 }
1624                 if (jiffies >= (time + 20)) {
1625                         ret_val = 14; /* error code for time out error */
1626                         break;
1627                 }
1628         } /* end loop count loop */
1629         return ret_val;
1630 }
1631
1632 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1633 {
1634         struct e1000_hw *hw = &adapter->hw;
1635
1636         /* PHY loopback cannot be performed if SoL/IDER sessions are active */
1637         if (hw->phy.ops.check_reset_block &&
1638             hw->phy.ops.check_reset_block(hw)) {
1639                 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1640                 *data = 0;
1641                 goto out;
1642         }
1643
1644         *data = e1000_setup_desc_rings(adapter);
1645         if (*data)
1646                 goto out;
1647
1648         *data = e1000_setup_loopback_test(adapter);
1649         if (*data)
1650                 goto err_loopback;
1651
1652         *data = e1000_run_loopback_test(adapter);
1653         e1000_loopback_cleanup(adapter);
1654
1655 err_loopback:
1656         e1000_free_desc_rings(adapter);
1657 out:
1658         return *data;
1659 }
1660
1661 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1662 {
1663         struct e1000_hw *hw = &adapter->hw;
1664
1665         *data = 0;
1666         if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1667                 int i = 0;
1668                 hw->mac.serdes_has_link = false;
1669
1670                 /* On some blade server designs, link establishment
1671                  * could take as long as 2-3 minutes
1672                  */
1673                 do {
1674                         hw->mac.ops.check_for_link(hw);
1675                         if (hw->mac.serdes_has_link)
1676                                 return *data;
1677                         msleep(20);
1678                 } while (i++ < 3750);
1679
1680                 *data = 1;
1681         } else {
1682                 hw->mac.ops.check_for_link(hw);
1683                 if (hw->mac.autoneg)
1684                         /* On some Phy/switch combinations, link establishment
1685                          * can take a few seconds more than expected.
1686                          */
1687                         msleep(5000);
1688
1689                 if (!(er32(STATUS) & E1000_STATUS_LU))
1690                         *data = 1;
1691         }
1692         return *data;
1693 }
1694
1695 static int e1000e_get_sset_count(struct net_device *netdev, int sset)
1696 {
1697         switch (sset) {
1698         case ETH_SS_TEST:
1699                 return E1000_TEST_LEN;
1700         case ETH_SS_STATS:
1701                 return E1000_STATS_LEN;
1702         default:
1703                 return -EOPNOTSUPP;
1704         }
1705 }
1706
1707 static void e1000_diag_test(struct net_device *netdev,
1708                             struct ethtool_test *eth_test, u64 *data)
1709 {
1710         struct e1000_adapter *adapter = netdev_priv(netdev);
1711         u16 autoneg_advertised;
1712         u8 forced_speed_duplex;
1713         u8 autoneg;
1714         bool if_running = netif_running(netdev);
1715
1716         set_bit(__E1000_TESTING, &adapter->state);
1717
1718         if (!if_running) {
1719                 /* Get control of and reset hardware */
1720                 if (adapter->flags & FLAG_HAS_AMT)
1721                         e1000e_get_hw_control(adapter);
1722
1723                 e1000e_power_up_phy(adapter);
1724
1725                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1726                 e1000e_reset(adapter);
1727                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1728         }
1729
1730         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1731                 /* Offline tests */
1732
1733                 /* save speed, duplex, autoneg settings */
1734                 autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1735                 forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1736                 autoneg = adapter->hw.mac.autoneg;
1737
1738                 e_info("offline testing starting\n");
1739
1740                 if (if_running)
1741                         /* indicate we're in test mode */
1742                         dev_close(netdev);
1743
1744                 if (e1000_reg_test(adapter, &data[0]))
1745                         eth_test->flags |= ETH_TEST_FL_FAILED;
1746
1747                 e1000e_reset(adapter);
1748                 if (e1000_eeprom_test(adapter, &data[1]))
1749                         eth_test->flags |= ETH_TEST_FL_FAILED;
1750
1751                 e1000e_reset(adapter);
1752                 if (e1000_intr_test(adapter, &data[2]))
1753                         eth_test->flags |= ETH_TEST_FL_FAILED;
1754
1755                 e1000e_reset(adapter);
1756                 if (e1000_loopback_test(adapter, &data[3]))
1757                         eth_test->flags |= ETH_TEST_FL_FAILED;
1758
1759                 /* force this routine to wait until autoneg complete/timeout */
1760                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1761                 e1000e_reset(adapter);
1762                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1763
1764                 if (e1000_link_test(adapter, &data[4]))
1765                         eth_test->flags |= ETH_TEST_FL_FAILED;
1766
1767                 /* restore speed, duplex, autoneg settings */
1768                 adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1769                 adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1770                 adapter->hw.mac.autoneg = autoneg;
1771                 e1000e_reset(adapter);
1772
1773                 clear_bit(__E1000_TESTING, &adapter->state);
1774                 if (if_running)
1775                         dev_open(netdev);
1776         } else {
1777                 /* Online tests */
1778
1779                 e_info("online testing starting\n");
1780
1781                 /* register, eeprom, intr and loopback tests not run online */
1782                 data[0] = 0;
1783                 data[1] = 0;
1784                 data[2] = 0;
1785                 data[3] = 0;
1786
1787                 if (e1000_link_test(adapter, &data[4]))
1788                         eth_test->flags |= ETH_TEST_FL_FAILED;
1789
1790                 clear_bit(__E1000_TESTING, &adapter->state);
1791         }
1792
1793         if (!if_running) {
1794                 e1000e_reset(adapter);
1795
1796                 if (adapter->flags & FLAG_HAS_AMT)
1797                         e1000e_release_hw_control(adapter);
1798         }
1799
1800         msleep_interruptible(4 * 1000);
1801 }
1802
1803 static void e1000_get_wol(struct net_device *netdev,
1804                           struct ethtool_wolinfo *wol)
1805 {
1806         struct e1000_adapter *adapter = netdev_priv(netdev);
1807
1808         wol->supported = 0;
1809         wol->wolopts = 0;
1810
1811         if (!(adapter->flags & FLAG_HAS_WOL) ||
1812             !device_can_wakeup(&adapter->pdev->dev))
1813                 return;
1814
1815         wol->supported = WAKE_UCAST | WAKE_MCAST |
1816             WAKE_BCAST | WAKE_MAGIC | WAKE_PHY;
1817
1818         /* apply any specific unsupported masks here */
1819         if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1820                 wol->supported &= ~WAKE_UCAST;
1821
1822                 if (adapter->wol & E1000_WUFC_EX)
1823                         e_err("Interface does not support directed (unicast) frame wake-up packets\n");
1824         }
1825
1826         if (adapter->wol & E1000_WUFC_EX)
1827                 wol->wolopts |= WAKE_UCAST;
1828         if (adapter->wol & E1000_WUFC_MC)
1829                 wol->wolopts |= WAKE_MCAST;
1830         if (adapter->wol & E1000_WUFC_BC)
1831                 wol->wolopts |= WAKE_BCAST;
1832         if (adapter->wol & E1000_WUFC_MAG)
1833                 wol->wolopts |= WAKE_MAGIC;
1834         if (adapter->wol & E1000_WUFC_LNKC)
1835                 wol->wolopts |= WAKE_PHY;
1836 }
1837
1838 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1839 {
1840         struct e1000_adapter *adapter = netdev_priv(netdev);
1841
1842         if (!(adapter->flags & FLAG_HAS_WOL) ||
1843             !device_can_wakeup(&adapter->pdev->dev) ||
1844             (wol->wolopts & ~(WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
1845                               WAKE_MAGIC | WAKE_PHY)))
1846                 return -EOPNOTSUPP;
1847
1848         /* these settings will always override what we currently have */
1849         adapter->wol = 0;
1850
1851         if (wol->wolopts & WAKE_UCAST)
1852                 adapter->wol |= E1000_WUFC_EX;
1853         if (wol->wolopts & WAKE_MCAST)
1854                 adapter->wol |= E1000_WUFC_MC;
1855         if (wol->wolopts & WAKE_BCAST)
1856                 adapter->wol |= E1000_WUFC_BC;
1857         if (wol->wolopts & WAKE_MAGIC)
1858                 adapter->wol |= E1000_WUFC_MAG;
1859         if (wol->wolopts & WAKE_PHY)
1860                 adapter->wol |= E1000_WUFC_LNKC;
1861
1862         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1863
1864         return 0;
1865 }
1866
1867 static int e1000_set_phys_id(struct net_device *netdev,
1868                              enum ethtool_phys_id_state state)
1869 {
1870         struct e1000_adapter *adapter = netdev_priv(netdev);
1871         struct e1000_hw *hw = &adapter->hw;
1872
1873         switch (state) {
1874         case ETHTOOL_ID_ACTIVE:
1875                 if (!hw->mac.ops.blink_led)
1876                         return 2;       /* cycle on/off twice per second */
1877
1878                 hw->mac.ops.blink_led(hw);
1879                 break;
1880
1881         case ETHTOOL_ID_INACTIVE:
1882                 if (hw->phy.type == e1000_phy_ife)
1883                         e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1884                 hw->mac.ops.led_off(hw);
1885                 hw->mac.ops.cleanup_led(hw);
1886                 break;
1887
1888         case ETHTOOL_ID_ON:
1889                 hw->mac.ops.led_on(hw);
1890                 break;
1891
1892         case ETHTOOL_ID_OFF:
1893                 hw->mac.ops.led_off(hw);
1894                 break;
1895         }
1896         return 0;
1897 }
1898
1899 static int e1000_get_coalesce(struct net_device *netdev,
1900                               struct ethtool_coalesce *ec)
1901 {
1902         struct e1000_adapter *adapter = netdev_priv(netdev);
1903
1904         if (adapter->itr_setting <= 4)
1905                 ec->rx_coalesce_usecs = adapter->itr_setting;
1906         else
1907                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1908
1909         return 0;
1910 }
1911
1912 static int e1000_set_coalesce(struct net_device *netdev,
1913                               struct ethtool_coalesce *ec)
1914 {
1915         struct e1000_adapter *adapter = netdev_priv(netdev);
1916
1917         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1918             ((ec->rx_coalesce_usecs > 4) &&
1919              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1920             (ec->rx_coalesce_usecs == 2))
1921                 return -EINVAL;
1922
1923         if (ec->rx_coalesce_usecs == 4) {
1924                 adapter->itr_setting = 4;
1925                 adapter->itr = adapter->itr_setting;
1926         } else if (ec->rx_coalesce_usecs <= 3) {
1927                 adapter->itr = 20000;
1928                 adapter->itr_setting = ec->rx_coalesce_usecs;
1929         } else {
1930                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1931                 adapter->itr_setting = adapter->itr & ~3;
1932         }
1933
1934         if (adapter->itr_setting != 0)
1935                 e1000e_write_itr(adapter, adapter->itr);
1936         else
1937                 e1000e_write_itr(adapter, 0);
1938
1939         return 0;
1940 }
1941
1942 static int e1000_nway_reset(struct net_device *netdev)
1943 {
1944         struct e1000_adapter *adapter = netdev_priv(netdev);
1945
1946         if (!netif_running(netdev))
1947                 return -EAGAIN;
1948
1949         if (!adapter->hw.mac.autoneg)
1950                 return -EINVAL;
1951
1952         e1000e_reinit_locked(adapter);
1953
1954         return 0;
1955 }
1956
1957 static void e1000_get_ethtool_stats(struct net_device *netdev,
1958                                     struct ethtool_stats *stats,
1959                                     u64 *data)
1960 {
1961         struct e1000_adapter *adapter = netdev_priv(netdev);
1962         struct rtnl_link_stats64 net_stats;
1963         int i;
1964         char *p = NULL;
1965
1966         e1000e_get_stats64(netdev, &net_stats);
1967         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1968                 switch (e1000_gstrings_stats[i].type) {
1969                 case NETDEV_STATS:
1970                         p = (char *) &net_stats +
1971                                         e1000_gstrings_stats[i].stat_offset;
1972                         break;
1973                 case E1000_STATS:
1974                         p = (char *) adapter +
1975                                         e1000_gstrings_stats[i].stat_offset;
1976                         break;
1977                 default:
1978                         data[i] = 0;
1979                         continue;
1980                 }
1981
1982                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1983                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1984         }
1985 }
1986
1987 static void e1000_get_strings(struct net_device *netdev, u32 stringset,
1988                               u8 *data)
1989 {
1990         u8 *p = data;
1991         int i;
1992
1993         switch (stringset) {
1994         case ETH_SS_TEST:
1995                 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
1996                 break;
1997         case ETH_SS_STATS:
1998                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1999                         memcpy(p, e1000_gstrings_stats[i].stat_string,
2000                                ETH_GSTRING_LEN);
2001                         p += ETH_GSTRING_LEN;
2002                 }
2003                 break;
2004         }
2005 }
2006
2007 static int e1000_get_rxnfc(struct net_device *netdev,
2008                            struct ethtool_rxnfc *info, u32 *rule_locs)
2009 {
2010         info->data = 0;
2011
2012         switch (info->cmd) {
2013         case ETHTOOL_GRXFH: {
2014                 struct e1000_adapter *adapter = netdev_priv(netdev);
2015                 struct e1000_hw *hw = &adapter->hw;
2016                 u32 mrqc = er32(MRQC);
2017
2018                 if (!(mrqc & E1000_MRQC_RSS_FIELD_MASK))
2019                         return 0;
2020
2021                 switch (info->flow_type) {
2022                 case TCP_V4_FLOW:
2023                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV4_TCP)
2024                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2025                         /* fall through */
2026                 case UDP_V4_FLOW:
2027                 case SCTP_V4_FLOW:
2028                 case AH_ESP_V4_FLOW:
2029                 case IPV4_FLOW:
2030                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV4)
2031                                 info->data |= RXH_IP_SRC | RXH_IP_DST;
2032                         break;
2033                 case TCP_V6_FLOW:
2034                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV6_TCP)
2035                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2036                         /* fall through */
2037                 case UDP_V6_FLOW:
2038                 case SCTP_V6_FLOW:
2039                 case AH_ESP_V6_FLOW:
2040                 case IPV6_FLOW:
2041                         if (mrqc & E1000_MRQC_RSS_FIELD_IPV6)
2042                                 info->data |= RXH_IP_SRC | RXH_IP_DST;
2043                         break;
2044                 default:
2045                         break;
2046                 }
2047                 return 0;
2048         }
2049         default:
2050                 return -EOPNOTSUPP;
2051         }
2052 }
2053
2054 static const struct ethtool_ops e1000_ethtool_ops = {
2055         .get_settings           = e1000_get_settings,
2056         .set_settings           = e1000_set_settings,
2057         .get_drvinfo            = e1000_get_drvinfo,
2058         .get_regs_len           = e1000_get_regs_len,
2059         .get_regs               = e1000_get_regs,
2060         .get_wol                = e1000_get_wol,
2061         .set_wol                = e1000_set_wol,
2062         .get_msglevel           = e1000_get_msglevel,
2063         .set_msglevel           = e1000_set_msglevel,
2064         .nway_reset             = e1000_nway_reset,
2065         .get_link               = ethtool_op_get_link,
2066         .get_eeprom_len         = e1000_get_eeprom_len,
2067         .get_eeprom             = e1000_get_eeprom,
2068         .set_eeprom             = e1000_set_eeprom,
2069         .get_ringparam          = e1000_get_ringparam,
2070         .set_ringparam          = e1000_set_ringparam,
2071         .get_pauseparam         = e1000_get_pauseparam,
2072         .set_pauseparam         = e1000_set_pauseparam,
2073         .self_test              = e1000_diag_test,
2074         .get_strings            = e1000_get_strings,
2075         .set_phys_id            = e1000_set_phys_id,
2076         .get_ethtool_stats      = e1000_get_ethtool_stats,
2077         .get_sset_count         = e1000e_get_sset_count,
2078         .get_coalesce           = e1000_get_coalesce,
2079         .set_coalesce           = e1000_set_coalesce,
2080         .get_rxnfc              = e1000_get_rxnfc,
2081         .get_ts_info            = ethtool_op_get_ts_info,
2082 };
2083
2084 void e1000e_set_ethtool_ops(struct net_device *netdev)
2085 {
2086         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
2087 }