drivers/net/e1000e/ethtool.c

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2008 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/ethtool.h>
  33 #include <linux/pci.h>
  34 #include <linux/delay.h>
  35
  36 #include "e1000.h"
  37
  38 struct e1000_stats {
  39         char stat_string[ETH_GSTRING_LEN];
  40         int sizeof_stat;
  41         int stat_offset;
  42 };
  43
  44 #define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \
  45                       offsetof(struct e1000_adapter, m)
  46 static const struct e1000_stats e1000_gstrings_stats[] = {
  47         { "rx_packets", E1000_STAT(stats.gprc) },
  48         { "tx_packets", E1000_STAT(stats.gptc) },
  49         { "rx_bytes", E1000_STAT(stats.gorc) },
  50         { "tx_bytes", E1000_STAT(stats.gotc) },
  51         { "rx_broadcast", E1000_STAT(stats.bprc) },
  52         { "tx_broadcast", E1000_STAT(stats.bptc) },
  53         { "rx_multicast", E1000_STAT(stats.mprc) },
  54         { "tx_multicast", E1000_STAT(stats.mptc) },
  55         { "rx_errors", E1000_STAT(net_stats.rx_errors) },
  56         { "tx_errors", E1000_STAT(net_stats.tx_errors) },
  57         { "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
  58         { "multicast", E1000_STAT(stats.mprc) },
  59         { "collisions", E1000_STAT(stats.colc) },
  60         { "rx_length_errors", E1000_STAT(net_stats.rx_length_errors) },
  61         { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
  62         { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
  63         { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
  64         { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
  65         { "rx_missed_errors", E1000_STAT(stats.mpc) },
  66         { "tx_aborted_errors", E1000_STAT(stats.ecol) },
  67         { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
  68         { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
  69         { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
  70         { "tx_window_errors", E1000_STAT(stats.latecol) },
  71         { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
  72         { "tx_deferred_ok", E1000_STAT(stats.dc) },
  73         { "tx_single_coll_ok", E1000_STAT(stats.scc) },
  74         { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
  75         { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
  76         { "tx_restart_queue", E1000_STAT(restart_queue) },
  77         { "rx_long_length_errors", E1000_STAT(stats.roc) },
  78         { "rx_short_length_errors", E1000_STAT(stats.ruc) },
  79         { "rx_align_errors", E1000_STAT(stats.algnerrc) },
  80         { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
  81         { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
  82         { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
  83         { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
  84         { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
  85         { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
  86         { "rx_long_byte_count", E1000_STAT(stats.gorc) },
  87         { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
  88         { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
  89         { "rx_header_split", E1000_STAT(rx_hdr_split) },
  90         { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
  91         { "tx_smbus", E1000_STAT(stats.mgptc) },
  92         { "rx_smbus", E1000_STAT(stats.mgprc) },
  93         { "dropped_smbus", E1000_STAT(stats.mgpdc) },
  94         { "rx_dma_failed", E1000_STAT(rx_dma_failed) },
  95         { "tx_dma_failed", E1000_STAT(tx_dma_failed) },
  96 };
  97
  98 #define E1000_GLOBAL_STATS_LEN  ARRAY_SIZE(e1000_gstrings_stats)
  99 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
 100 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 101         "Register test  (offline)", "Eeprom test    (offline)",
 102         "Interrupt test (offline)", "Loopback test  (offline)",
 103         "Link test   (on/offline)"
 104 };
 105 #define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 106
 107 static int e1000_get_settings(struct net_device *netdev,
 108                               struct ethtool_cmd *ecmd)
 109 {
 110         struct e1000_adapter *adapter = netdev_priv(netdev);
 111         struct e1000_hw *hw = &adapter->hw;
 112         u32 status;
 113
 114         if (hw->phy.media_type == e1000_media_type_copper) {
 115
 116                 ecmd->supported = (SUPPORTED_10baseT_Half |
 117                                    SUPPORTED_10baseT_Full |
 118                                    SUPPORTED_100baseT_Half |
 119                                    SUPPORTED_100baseT_Full |
 120                                    SUPPORTED_1000baseT_Full |
 121                                    SUPPORTED_Autoneg |
 122                                    SUPPORTED_TP);
 123                 if (hw->phy.type == e1000_phy_ife)
 124                         ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 125                 ecmd->advertising = ADVERTISED_TP;
 126
 127                 if (hw->mac.autoneg == 1) {
 128                         ecmd->advertising |= ADVERTISED_Autoneg;
 129                         /* the e1000 autoneg seems to match ethtool nicely */
 130                         ecmd->advertising |= hw->phy.autoneg_advertised;
 131                 }
 132
 133                 ecmd->port = PORT_TP;
 134                 ecmd->phy_address = hw->phy.addr;
 135                 ecmd->transceiver = XCVR_INTERNAL;
 136
 137         } else {
 138                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 139                                      SUPPORTED_FIBRE |
 140                                      SUPPORTED_Autoneg);
 141
 142                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 143                                      ADVERTISED_FIBRE |
 144                                      ADVERTISED_Autoneg);
 145
 146                 ecmd->port = PORT_FIBRE;
 147                 ecmd->transceiver = XCVR_EXTERNAL;
 148         }
 149
 150         status = er32(STATUS);
 151         if (status & E1000_STATUS_LU) {
 152                 if (status & E1000_STATUS_SPEED_1000)
 153                         ecmd->speed = 1000;
 154                 else if (status & E1000_STATUS_SPEED_100)
 155                         ecmd->speed = 100;
 156                 else
 157                         ecmd->speed = 10;
 158
 159                 if (status & E1000_STATUS_FD)
 160                         ecmd->duplex = DUPLEX_FULL;
 161                 else
 162                         ecmd->duplex = DUPLEX_HALF;
 163         } else {
 164                 ecmd->speed = -1;
 165                 ecmd->duplex = -1;
 166         }
 167
 168         ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 169                          hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 170         return 0;
 171 }
 172
 173 static u32 e1000_get_link(struct net_device *netdev)
 174 {
 175         struct e1000_adapter *adapter = netdev_priv(netdev);
 176         struct e1000_hw *hw = &adapter->hw;
 177         u32 status;
 178
 179         status = er32(STATUS);
 180         return (status & E1000_STATUS_LU) ? 1 : 0;
 181 }
 182
 183 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
 184 {
 185         struct e1000_mac_info *mac = &adapter->hw.mac;
 186
 187         mac->autoneg = 0;
 188
 189         /* Fiber NICs only allow 1000 gbps Full duplex */
 190         if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 191                 spddplx != (SPEED_1000 + DUPLEX_FULL)) {
 192                 e_err("Unsupported Speed/Duplex configuration\n");
 193                 return -EINVAL;
 194         }
 195
 196         switch (spddplx) {
 197         case SPEED_10 + DUPLEX_HALF:
 198                 mac->forced_speed_duplex = ADVERTISE_10_HALF;
 199                 break;
 200         case SPEED_10 + DUPLEX_FULL:
 201                 mac->forced_speed_duplex = ADVERTISE_10_FULL;
 202                 break;
 203         case SPEED_100 + DUPLEX_HALF:
 204                 mac->forced_speed_duplex = ADVERTISE_100_HALF;
 205                 break;
 206         case SPEED_100 + DUPLEX_FULL:
 207                 mac->forced_speed_duplex = ADVERTISE_100_FULL;
 208                 break;
 209         case SPEED_1000 + DUPLEX_FULL:
 210                 mac->autoneg = 1;
 211                 adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 212                 break;
 213         case SPEED_1000 + DUPLEX_HALF: /* not supported */
 214         default:
 215                 e_err("Unsupported Speed/Duplex configuration\n");
 216                 return -EINVAL;
 217         }
 218         return 0;
 219 }
 220
 221 static int e1000_set_settings(struct net_device *netdev,
 222                               struct ethtool_cmd *ecmd)
 223 {
 224         struct e1000_adapter *adapter = netdev_priv(netdev);
 225         struct e1000_hw *hw = &adapter->hw;
 226
 227         /*
 228          * When SoL/IDER sessions are active, autoneg/speed/duplex
 229          * cannot be changed
 230          */
 231         if (e1000_check_reset_block(hw)) {
 232                 e_err("Cannot change link characteristics when SoL/IDER is "
 233                       "active.\n");
 234                 return -EINVAL;
 235         }
 236
 237         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 238                 msleep(1);
 239
 240         if (ecmd->autoneg == AUTONEG_ENABLE) {
 241                 hw->mac.autoneg = 1;
 242                 if (hw->phy.media_type == e1000_media_type_fiber)
 243                         hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 244                                                      ADVERTISED_FIBRE |
 245                                                      ADVERTISED_Autoneg;
 246                 else
 247                         hw->phy.autoneg_advertised = ecmd->advertising |
 248                                                      ADVERTISED_TP |
 249                                                      ADVERTISED_Autoneg;
 250                 ecmd->advertising = hw->phy.autoneg_advertised;
 251                 if (adapter->fc_autoneg)
 252                         hw->fc.original_type = e1000_fc_default;
 253         } else {
 254                 if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
 255                         clear_bit(__E1000_RESETTING, &adapter->state);
 256                         return -EINVAL;
 257                 }
 258         }
 259
 260         /* reset the link */
 261
 262         if (netif_running(adapter->netdev)) {
 263                 e1000e_down(adapter);
 264                 e1000e_up(adapter);
 265         } else {
 266                 e1000e_reset(adapter);
 267         }
 268
 269         clear_bit(__E1000_RESETTING, &adapter->state);
 270         return 0;
 271 }
 272
 273 static void e1000_get_pauseparam(struct net_device *netdev,
 274                                  struct ethtool_pauseparam *pause)
 275 {
 276         struct e1000_adapter *adapter = netdev_priv(netdev);
 277         struct e1000_hw *hw = &adapter->hw;
 278
 279         pause->autoneg =
 280                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 281
 282         if (hw->fc.type == e1000_fc_rx_pause) {
 283                 pause->rx_pause = 1;
 284         } else if (hw->fc.type == e1000_fc_tx_pause) {
 285                 pause->tx_pause = 1;
 286         } else if (hw->fc.type == e1000_fc_full) {
 287                 pause->rx_pause = 1;
 288                 pause->tx_pause = 1;
 289         }
 290 }
 291
 292 static int e1000_set_pauseparam(struct net_device *netdev,
 293                                 struct ethtool_pauseparam *pause)
 294 {
 295         struct e1000_adapter *adapter = netdev_priv(netdev);
 296         struct e1000_hw *hw = &adapter->hw;
 297         int retval = 0;
 298
 299         adapter->fc_autoneg = pause->autoneg;
 300
 301         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 302                 msleep(1);
 303
 304         if (pause->rx_pause && pause->tx_pause)
 305                 hw->fc.type = e1000_fc_full;
 306         else if (pause->rx_pause && !pause->tx_pause)
 307                 hw->fc.type = e1000_fc_rx_pause;
 308         else if (!pause->rx_pause && pause->tx_pause)
 309                 hw->fc.type = e1000_fc_tx_pause;
 310         else if (!pause->rx_pause && !pause->tx_pause)
 311                 hw->fc.type = e1000_fc_none;
 312
 313         hw->fc.original_type = hw->fc.type;
 314
 315         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 316                 hw->fc.type = e1000_fc_default;
 317                 if (netif_running(adapter->netdev)) {
 318                         e1000e_down(adapter);
 319                         e1000e_up(adapter);
 320                 } else {
 321                         e1000e_reset(adapter);
 322                 }
 323         } else {
 324                 retval = ((hw->phy.media_type == e1000_media_type_fiber) ?
 325                           hw->mac.ops.setup_link(hw) : e1000e_force_mac_fc(hw));
 326         }
 327
 328         clear_bit(__E1000_RESETTING, &adapter->state);
 329         return retval;
 330 }
 331
 332 static u32 e1000_get_rx_csum(struct net_device *netdev)
 333 {
 334         struct e1000_adapter *adapter = netdev_priv(netdev);
 335         return (adapter->flags & FLAG_RX_CSUM_ENABLED);
 336 }
 337
 338 static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
 339 {
 340         struct e1000_adapter *adapter = netdev_priv(netdev);
 341
 342         if (data)
 343                 adapter->flags |= FLAG_RX_CSUM_ENABLED;
 344         else
 345                 adapter->flags &= ~FLAG_RX_CSUM_ENABLED;
 346
 347         if (netif_running(netdev))
 348                 e1000e_reinit_locked(adapter);
 349         else
 350                 e1000e_reset(adapter);
 351         return 0;
 352 }
 353
 354 static u32 e1000_get_tx_csum(struct net_device *netdev)
 355 {
 356         return ((netdev->features & NETIF_F_HW_CSUM) != 0);
 357 }
 358
 359 static int e1000_set_tx_csum(struct net_device *netdev, u32 data)
 360 {
 361         if (data)
 362                 netdev->features |= NETIF_F_HW_CSUM;
 363         else
 364                 netdev->features &= ~NETIF_F_HW_CSUM;
 365
 366         return 0;
 367 }
 368
 369 static int e1000_set_tso(struct net_device *netdev, u32 data)
 370 {
 371         struct e1000_adapter *adapter = netdev_priv(netdev);
 372
 373         if (data) {
 374                 netdev->features |= NETIF_F_TSO;
 375                 netdev->features |= NETIF_F_TSO6;
 376         } else {
 377                 netdev->features &= ~NETIF_F_TSO;
 378                 netdev->features &= ~NETIF_F_TSO6;
 379         }
 380
 381         e_info("TSO is %s\n", data ? "Enabled" : "Disabled");
 382         adapter->flags |= FLAG_TSO_FORCE;
 383         return 0;
 384 }
 385
 386 static u32 e1000_get_msglevel(struct net_device *netdev)
 387 {
 388         struct e1000_adapter *adapter = netdev_priv(netdev);
 389         return adapter->msg_enable;
 390 }
 391
 392 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 393 {
 394         struct e1000_adapter *adapter = netdev_priv(netdev);
 395         adapter->msg_enable = data;
 396 }
 397
 398 static int e1000_get_regs_len(struct net_device *netdev)
 399 {
 400 #define E1000_REGS_LEN 32 /* overestimate */
 401         return E1000_REGS_LEN * sizeof(u32);
 402 }
 403
 404 static void e1000_get_regs(struct net_device *netdev,
 405                            struct ethtool_regs *regs, void *p)
 406 {
 407         struct e1000_adapter *adapter = netdev_priv(netdev);
 408         struct e1000_hw *hw = &adapter->hw;
 409         u32 *regs_buff = p;
 410         u16 phy_data;
 411         u8 revision_id;
 412
 413         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 414
 415         pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);
 416
 417         regs->version = (1 << 24) | (revision_id << 16) | adapter->pdev->device;
 418
 419         regs_buff[0]  = er32(CTRL);
 420         regs_buff[1]  = er32(STATUS);
 421
 422         regs_buff[2]  = er32(RCTL);
 423         regs_buff[3]  = er32(RDLEN);
 424         regs_buff[4]  = er32(RDH);
 425         regs_buff[5]  = er32(RDT);
 426         regs_buff[6]  = er32(RDTR);
 427
 428         regs_buff[7]  = er32(TCTL);
 429         regs_buff[8]  = er32(TDLEN);
 430         regs_buff[9]  = er32(TDH);
 431         regs_buff[10] = er32(TDT);
 432         regs_buff[11] = er32(TIDV);
 433
 434         regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
 435
 436         /* ethtool doesn't use anything past this point, so all this
 437          * code is likely legacy junk for apps that may or may not
 438          * exist */
 439         if (hw->phy.type == e1000_phy_m88) {
 440                 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 441                 regs_buff[13] = (u32)phy_data; /* cable length */
 442                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 443                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 444                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 445                 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 446                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 447                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 448                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 449                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 450                 /* phy receive errors */
 451                 regs_buff[22] = adapter->phy_stats.receive_errors;
 452                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 453         }
 454         regs_buff[21] = 0; /* was idle_errors */
 455         e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);
 456         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 457         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 458 }
 459
 460 static int e1000_get_eeprom_len(struct net_device *netdev)
 461 {
 462         struct e1000_adapter *adapter = netdev_priv(netdev);
 463         return adapter->hw.nvm.word_size * 2;
 464 }
 465
 466 static int e1000_get_eeprom(struct net_device *netdev,
 467                             struct ethtool_eeprom *eeprom, u8 *bytes)
 468 {
 469         struct e1000_adapter *adapter = netdev_priv(netdev);
 470         struct e1000_hw *hw = &adapter->hw;
 471         u16 *eeprom_buff;
 472         int first_word;
 473         int last_word;
 474         int ret_val = 0;
 475         u16 i;
 476
 477         if (eeprom->len == 0)
 478                 return -EINVAL;
 479
 480         eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 481
 482         first_word = eeprom->offset >> 1;
 483         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 484
 485         eeprom_buff = kmalloc(sizeof(u16) *
 486                         (last_word - first_word + 1), GFP_KERNEL);
 487         if (!eeprom_buff)
 488                 return -ENOMEM;
 489
 490         if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 491                 ret_val = e1000_read_nvm(hw, first_word,
 492                                          last_word - first_word + 1,
 493                                          eeprom_buff);
 494         } else {
 495                 for (i = 0; i < last_word - first_word + 1; i++) {
 496                         ret_val = e1000_read_nvm(hw, first_word + i, 1,
 497                                                       &eeprom_buff[i]);
 498                         if (ret_val) {
 499                                 /* a read error occurred, throw away the
 500                                  * result */
 501                                 memset(eeprom_buff, 0xff, sizeof(eeprom_buff));
 502                                 break;
 503                         }
 504                 }
 505         }
 506
 507         /* Device's eeprom is always little-endian, word addressable */
 508         for (i = 0; i < last_word - first_word + 1; i++)
 509                 le16_to_cpus(&eeprom_buff[i]);
 510
 511         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 512         kfree(eeprom_buff);
 513
 514         return ret_val;
 515 }
 516
 517 static int e1000_set_eeprom(struct net_device *netdev,
 518                             struct ethtool_eeprom *eeprom, u8 *bytes)
 519 {
 520         struct e1000_adapter *adapter = netdev_priv(netdev);
 521         struct e1000_hw *hw = &adapter->hw;
 522         u16 *eeprom_buff;
 523         void *ptr;
 524         int max_len;
 525         int first_word;
 526         int last_word;
 527         int ret_val = 0;
 528         u16 i;
 529
 530         if (eeprom->len == 0)
 531                 return -EOPNOTSUPP;
 532
 533         if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 534                 return -EFAULT;
 535
 536         if (adapter->flags & FLAG_READ_ONLY_NVM)
 537                 return -EINVAL;
 538
 539         max_len = hw->nvm.word_size * 2;
 540
 541         first_word = eeprom->offset >> 1;
 542         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 543         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 544         if (!eeprom_buff)
 545                 return -ENOMEM;
 546
 547         ptr = (void *)eeprom_buff;
 548
 549         if (eeprom->offset & 1) {
 550                 /* need read/modify/write of first changed EEPROM word */
 551                 /* only the second byte of the word is being modified */
 552                 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 553                 ptr++;
 554         }
 555         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0))
 556                 /* need read/modify/write of last changed EEPROM word */
 557                 /* only the first byte of the word is being modified */
 558                 ret_val = e1000_read_nvm(hw, last_word, 1,
 559                                   &eeprom_buff[last_word - first_word]);
 560
 561         /* Device's eeprom is always little-endian, word addressable */
 562         for (i = 0; i < last_word - first_word + 1; i++)
 563                 le16_to_cpus(&eeprom_buff[i]);
 564
 565         memcpy(ptr, bytes, eeprom->len);
 566
 567         for (i = 0; i < last_word - first_word + 1; i++)
 568                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 569
 570         ret_val = e1000_write_nvm(hw, first_word,
 571                                   last_word - first_word + 1, eeprom_buff);
 572
 573         /*
 574          * Update the checksum over the first part of the EEPROM if needed
 575          * and flush shadow RAM for 82573 controllers
 576          */
 577         if ((ret_val == 0) && ((first_word <= NVM_CHECKSUM_REG) ||
 578                                (hw->mac.type == e1000_82573)))
 579                 e1000e_update_nvm_checksum(hw);
 580
 581         kfree(eeprom_buff);
 582         return ret_val;
 583 }
 584
 585 static void e1000_get_drvinfo(struct net_device *netdev,
 586                               struct ethtool_drvinfo *drvinfo)
 587 {
 588         struct e1000_adapter *adapter = netdev_priv(netdev);
 589         char firmware_version[32];
 590         u16 eeprom_data;
 591
 592         strncpy(drvinfo->driver,  e1000e_driver_name, 32);
 593         strncpy(drvinfo->version, e1000e_driver_version, 32);
 594
 595         /*
 596          * EEPROM image version # is reported as firmware version # for
 597          * PCI-E controllers
 598          */
 599         e1000_read_nvm(&adapter->hw, 5, 1, &eeprom_data);
 600         sprintf(firmware_version, "%d.%d-%d",
 601                 (eeprom_data & 0xF000) >> 12,
 602                 (eeprom_data & 0x0FF0) >> 4,
 603                 eeprom_data & 0x000F);
 604
 605         strncpy(drvinfo->fw_version, firmware_version, 32);
 606         strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 607         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 608         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 609 }
 610
 611 static void e1000_get_ringparam(struct net_device *netdev,
 612                                 struct ethtool_ringparam *ring)
 613 {
 614         struct e1000_adapter *adapter = netdev_priv(netdev);
 615         struct e1000_ring *tx_ring = adapter->tx_ring;
 616         struct e1000_ring *rx_ring = adapter->rx_ring;
 617
 618         ring->rx_max_pending = E1000_MAX_RXD;
 619         ring->tx_max_pending = E1000_MAX_TXD;
 620         ring->rx_mini_max_pending = 0;
 621         ring->rx_jumbo_max_pending = 0;
 622         ring->rx_pending = rx_ring->count;
 623         ring->tx_pending = tx_ring->count;
 624         ring->rx_mini_pending = 0;
 625         ring->rx_jumbo_pending = 0;
 626 }
 627
 628 static int e1000_set_ringparam(struct net_device *netdev,
 629                                struct ethtool_ringparam *ring)
 630 {
 631         struct e1000_adapter *adapter = netdev_priv(netdev);
 632         struct e1000_ring *tx_ring, *tx_old;
 633         struct e1000_ring *rx_ring, *rx_old;
 634         int err;
 635
 636         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 637                 return -EINVAL;
 638
 639         while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 640                 msleep(1);
 641
 642         if (netif_running(adapter->netdev))
 643                 e1000e_down(adapter);
 644
 645         tx_old = adapter->tx_ring;
 646         rx_old = adapter->rx_ring;
 647
 648         err = -ENOMEM;
 649         tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
 650         if (!tx_ring)
 651                 goto err_alloc_tx;
 652         /*
 653          * use a memcpy to save any previously configured
 654          * items like napi structs from having to be
 655          * reinitialized
 656          */
 657         memcpy(tx_ring, tx_old, sizeof(struct e1000_ring));
 658
 659         rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
 660         if (!rx_ring)
 661                 goto err_alloc_rx;
 662         memcpy(rx_ring, rx_old, sizeof(struct e1000_ring));
 663
 664         adapter->tx_ring = tx_ring;
 665         adapter->rx_ring = rx_ring;
 666
 667         rx_ring->count = max(ring->rx_pending, (u32)E1000_MIN_RXD);
 668         rx_ring->count = min(rx_ring->count, (u32)(E1000_MAX_RXD));
 669         rx_ring->count = ALIGN(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 670
 671         tx_ring->count = max(ring->tx_pending, (u32)E1000_MIN_TXD);
 672         tx_ring->count = min(tx_ring->count, (u32)(E1000_MAX_TXD));
 673         tx_ring->count = ALIGN(tx_ring->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 674
 675         if (netif_running(adapter->netdev)) {
 676                 /* Try to get new resources before deleting old */
 677                 err = e1000e_setup_rx_resources(adapter);
 678                 if (err)
 679                         goto err_setup_rx;
 680                 err = e1000e_setup_tx_resources(adapter);
 681                 if (err)
 682                         goto err_setup_tx;
 683
 684                 /*
 685                  * restore the old in order to free it,
 686                  * then add in the new
 687                  */
 688                 adapter->rx_ring = rx_old;
 689                 adapter->tx_ring = tx_old;
 690                 e1000e_free_rx_resources(adapter);
 691                 e1000e_free_tx_resources(adapter);
 692                 kfree(tx_old);
 693                 kfree(rx_old);
 694                 adapter->rx_ring = rx_ring;
 695                 adapter->tx_ring = tx_ring;
 696                 err = e1000e_up(adapter);
 697                 if (err)
 698                         goto err_setup;
 699         }
 700
 701         clear_bit(__E1000_RESETTING, &adapter->state);
 702         return 0;
 703 err_setup_tx:
 704         e1000e_free_rx_resources(adapter);
 705 err_setup_rx:
 706         adapter->rx_ring = rx_old;
 707         adapter->tx_ring = tx_old;
 708         kfree(rx_ring);
 709 err_alloc_rx:
 710         kfree(tx_ring);
 711 err_alloc_tx:
 712         e1000e_up(adapter);
 713 err_setup:
 714         clear_bit(__E1000_RESETTING, &adapter->state);
 715         return err;
 716 }
 717
 718 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 719                              int reg, int offset, u32 mask, u32 write)
 720 {
 721         u32 pat, val;
 722         static const u32 test[] =
 723                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 724         for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 725                 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 726                                       (test[pat] & write));
 727                 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 728                 if (val != (test[pat] & write & mask)) {
 729                         e_err("pattern test reg %04X failed: got 0x%08X "
 730                               "expected 0x%08X\n", reg + offset, val,
 731                               (test[pat] & write & mask));
 732                         *data = reg;
 733                         return 1;
 734                 }
 735         }
 736         return 0;
 737 }
 738
 739 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 740                               int reg, u32 mask, u32 write)
 741 {
 742         u32 val;
 743         __ew32(&adapter->hw, reg, write & mask);
 744         val = __er32(&adapter->hw, reg);
 745         if ((write & mask) != (val & mask)) {
 746                 e_err("set/check reg %04X test failed: got 0x%08X "
 747                       "expected 0x%08X\n", reg, (val & mask), (write & mask));
 748                 *data = reg;
 749                 return 1;
 750         }
 751         return 0;
 752 }
 753 #define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 754         do {                                                                   \
 755                 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 756                         return 1;                                              \
 757         } while (0)
 758 #define REG_PATTERN_TEST(reg, mask, write)                                     \
 759         REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 760
 761 #define REG_SET_AND_CHECK(reg, mask, write)                                    \
 762         do {                                                                   \
 763                 if (reg_set_and_check(adapter, data, reg, mask, write))        \
 764                         return 1;                                              \
 765         } while (0)
 766
 767 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 768 {
 769         struct e1000_hw *hw = &adapter->hw;
 770         struct e1000_mac_info *mac = &adapter->hw.mac;
 771         u32 value;
 772         u32 before;
 773         u32 after;
 774         u32 i;
 775         u32 toggle;
 776
 777         /*
 778          * The status register is Read Only, so a write should fail.
 779          * Some bits that get toggled are ignored.
 780          */
 781         switch (mac->type) {
 782         /* there are several bits on newer hardware that are r/w */
 783         case e1000_82571:
 784         case e1000_82572:
 785         case e1000_80003es2lan:
 786                 toggle = 0x7FFFF3FF;
 787                 break;
 788         case e1000_82573:
 789         case e1000_ich8lan:
 790         case e1000_ich9lan:
 791                 toggle = 0x7FFFF033;
 792                 break;
 793         default:
 794                 toggle = 0xFFFFF833;
 795                 break;
 796         }
 797
 798         before = er32(STATUS);
 799         value = (er32(STATUS) & toggle);
 800         ew32(STATUS, toggle);
 801         after = er32(STATUS) & toggle;
 802         if (value != after) {
 803                 e_err("failed STATUS register test got: 0x%08X expected: "
 804                       "0x%08X\n", after, value);
 805                 *data = 1;
 806                 return 1;
 807         }
 808         /* restore previous status */
 809         ew32(STATUS, before);
 810
 811         if (!(adapter->flags & FLAG_IS_ICH)) {
 812                 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 813                 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 814                 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 815                 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 816         }
 817
 818         REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 819         REG_PATTERN_TEST(E1000_RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 820         REG_PATTERN_TEST(E1000_RDLEN, 0x000FFF80, 0x000FFFFF);
 821         REG_PATTERN_TEST(E1000_RDH, 0x0000FFFF, 0x0000FFFF);
 822         REG_PATTERN_TEST(E1000_RDT, 0x0000FFFF, 0x0000FFFF);
 823         REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 824         REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 825         REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 826         REG_PATTERN_TEST(E1000_TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 827         REG_PATTERN_TEST(E1000_TDLEN, 0x000FFF80, 0x000FFFFF);
 828
 829         REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 830
 831         before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 832         REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 833         REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 834
 835         REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 836         REG_PATTERN_TEST(E1000_RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 837         if (!(adapter->flags & FLAG_IS_ICH))
 838                 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 839         REG_PATTERN_TEST(E1000_TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 840         REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 841         for (i = 0; i < mac->rar_entry_count; i++)
 842                 REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1),
 843                                        0x8003FFFF, 0xFFFFFFFF);
 844
 845         for (i = 0; i < mac->mta_reg_count; i++)
 846                 REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 847
 848         *data = 0;
 849         return 0;
 850 }
 851
 852 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 853 {
 854         u16 temp;
 855         u16 checksum = 0;
 856         u16 i;
 857
 858         *data = 0;
 859         /* Read and add up the contents of the EEPROM */
 860         for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 861                 if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 862                         *data = 1;
 863                         break;
 864                 }
 865                 checksum += temp;
 866         }
 867
 868         /* If Checksum is not Correct return error else test passed */
 869         if ((checksum != (u16) NVM_SUM) && !(*data))
 870                 *data = 2;
 871
 872         return *data;
 873 }
 874
 875 static irqreturn_t e1000_test_intr(int irq, void *data)
 876 {
 877         struct net_device *netdev = (struct net_device *) data;
 878         struct e1000_adapter *adapter = netdev_priv(netdev);
 879         struct e1000_hw *hw = &adapter->hw;
 880
 881         adapter->test_icr |= er32(ICR);
 882
 883         return IRQ_HANDLED;
 884 }
 885
 886 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 887 {
 888         struct net_device *netdev = adapter->netdev;
 889         struct e1000_hw *hw = &adapter->hw;
 890         u32 mask;
 891         u32 shared_int = 1;
 892         u32 irq = adapter->pdev->irq;
 893         int i;
 894
 895         *data = 0;
 896
 897         /* NOTE: we don't test MSI interrupts here, yet */
 898         /* Hook up test interrupt handler just for this test */
 899         if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 900                          netdev)) {
 901                 shared_int = 0;
 902         } else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
 903                  netdev->name, netdev)) {
 904                 *data = 1;
 905                 return -1;
 906         }
 907         e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
 908
 909         /* Disable all the interrupts */
 910         ew32(IMC, 0xFFFFFFFF);
 911         msleep(10);
 912
 913         /* Test each interrupt */
 914         for (i = 0; i < 10; i++) {
 915                 if ((adapter->flags & FLAG_IS_ICH) && (i == 8))
 916                         continue;
 917
 918                 /* Interrupt to test */
 919                 mask = 1 << i;
 920
 921                 if (!shared_int) {
 922                         /*
 923                          * Disable the interrupt to be reported in
 924                          * the cause register and then force the same
 925                          * interrupt and see if one gets posted.  If
 926                          * an interrupt was posted to the bus, the
 927                          * test failed.
 928                          */
 929                         adapter->test_icr = 0;
 930                         ew32(IMC, mask);
 931                         ew32(ICS, mask);
 932                         msleep(10);
 933
 934                         if (adapter->test_icr & mask) {
 935                                 *data = 3;
 936                                 break;
 937                         }
 938                 }
 939
 940                 /*
 941                  * Enable the interrupt to be reported in
 942                  * the cause register and then force the same
 943                  * interrupt and see if one gets posted.  If
 944                  * an interrupt was not posted to the bus, the
 945                  * test failed.
 946                  */
 947                 adapter->test_icr = 0;
 948                 ew32(IMS, mask);
 949                 ew32(ICS, mask);
 950                 msleep(10);
 951
 952                 if (!(adapter->test_icr & mask)) {
 953                         *data = 4;
 954                         break;
 955                 }
 956
 957                 if (!shared_int) {
 958                         /*
 959                          * Disable the other interrupts to be reported in
 960                          * the cause register and then force the other
 961                          * interrupts and see if any get posted.  If
 962                          * an interrupt was posted to the bus, the
 963                          * test failed.
 964                          */
 965                         adapter->test_icr = 0;
 966                         ew32(IMC, ~mask & 0x00007FFF);
 967                         ew32(ICS, ~mask & 0x00007FFF);
 968                         msleep(10);
 969
 970                         if (adapter->test_icr) {
 971                                 *data = 5;
 972                                 break;
 973                         }
 974                 }
 975         }
 976
 977         /* Disable all the interrupts */
 978         ew32(IMC, 0xFFFFFFFF);
 979         msleep(10);
 980
 981         /* Unhook test interrupt handler */
 982         free_irq(irq, netdev);
 983
 984         return *data;
 985 }
 986
 987 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
 988 {
 989         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
 990         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
 991         struct pci_dev *pdev = adapter->pdev;
 992         int i;
 993
 994         if (tx_ring->desc && tx_ring->buffer_info) {
 995                 for (i = 0; i < tx_ring->count; i++) {
 996                         if (tx_ring->buffer_info[i].dma)
 997                                 pci_unmap_single(pdev,
 998                                         tx_ring->buffer_info[i].dma,
 999                                         tx_ring->buffer_info[i].length,
1000                                         PCI_DMA_TODEVICE);
1001                         if (tx_ring->buffer_info[i].skb)
1002                                 dev_kfree_skb(tx_ring->buffer_info[i].skb);
1003                 }
1004         }
1005
1006         if (rx_ring->desc && rx_ring->buffer_info) {
1007                 for (i = 0; i < rx_ring->count; i++) {
1008                         if (rx_ring->buffer_info[i].dma)
1009                                 pci_unmap_single(pdev,
1010                                         rx_ring->buffer_info[i].dma,
1011                                         2048, PCI_DMA_FROMDEVICE);
1012                         if (rx_ring->buffer_info[i].skb)
1013                                 dev_kfree_skb(rx_ring->buffer_info[i].skb);
1014                 }
1015         }
1016
1017         if (tx_ring->desc) {
1018                 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1019                                   tx_ring->dma);
1020                 tx_ring->desc = NULL;
1021         }
1022         if (rx_ring->desc) {
1023                 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1024                                   rx_ring->dma);
1025                 rx_ring->desc = NULL;
1026         }
1027
1028         kfree(tx_ring->buffer_info);
1029         tx_ring->buffer_info = NULL;
1030         kfree(rx_ring->buffer_info);
1031         rx_ring->buffer_info = NULL;
1032 }
1033
1034 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1035 {
1036         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1037         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1038         struct pci_dev *pdev = adapter->pdev;
1039         struct e1000_hw *hw = &adapter->hw;
1040         u32 rctl;
1041         int i;
1042         int ret_val;
1043
1044         /* Setup Tx descriptor ring and Tx buffers */
1045
1046         if (!tx_ring->count)
1047                 tx_ring->count = E1000_DEFAULT_TXD;
1048
1049         tx_ring->buffer_info = kcalloc(tx_ring->count,
1050                                        sizeof(struct e1000_buffer),
1051                                        GFP_KERNEL);
1052         if (!(tx_ring->buffer_info)) {
1053                 ret_val = 1;
1054                 goto err_nomem;
1055         }
1056
1057         tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1058         tx_ring->size = ALIGN(tx_ring->size, 4096);
1059         tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1060                                            &tx_ring->dma, GFP_KERNEL);
1061         if (!tx_ring->desc) {
1062                 ret_val = 2;
1063                 goto err_nomem;
1064         }
1065         tx_ring->next_to_use = 0;
1066         tx_ring->next_to_clean = 0;
1067
1068         ew32(TDBAL, ((u64) tx_ring->dma & 0x00000000FFFFFFFF));
1069         ew32(TDBAH, ((u64) tx_ring->dma >> 32));
1070         ew32(TDLEN, tx_ring->count * sizeof(struct e1000_tx_desc));
1071         ew32(TDH, 0);
1072         ew32(TDT, 0);
1073         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1074              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1075              E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1076
1077         for (i = 0; i < tx_ring->count; i++) {
1078                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1079                 struct sk_buff *skb;
1080                 unsigned int skb_size = 1024;
1081
1082                 skb = alloc_skb(skb_size, GFP_KERNEL);
1083                 if (!skb) {
1084                         ret_val = 3;
1085                         goto err_nomem;
1086                 }
1087                 skb_put(skb, skb_size);
1088                 tx_ring->buffer_info[i].skb = skb;
1089                 tx_ring->buffer_info[i].length = skb->len;
1090                 tx_ring->buffer_info[i].dma =
1091                         pci_map_single(pdev, skb->data, skb->len,
1092                                        PCI_DMA_TODEVICE);
1093                 if (pci_dma_mapping_error(pdev, tx_ring->buffer_info[i].dma)) {
1094                         ret_val = 4;
1095                         goto err_nomem;
1096                 }
1097                 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1098                 tx_desc->lower.data = cpu_to_le32(skb->len);
1099                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1100                                                    E1000_TXD_CMD_IFCS |
1101                                                    E1000_TXD_CMD_RS);
1102                 tx_desc->upper.data = 0;
1103         }
1104
1105         /* Setup Rx descriptor ring and Rx buffers */
1106
1107         if (!rx_ring->count)
1108                 rx_ring->count = E1000_DEFAULT_RXD;
1109
1110         rx_ring->buffer_info = kcalloc(rx_ring->count,
1111                                        sizeof(struct e1000_buffer),
1112                                        GFP_KERNEL);
1113         if (!(rx_ring->buffer_info)) {
1114                 ret_val = 5;
1115                 goto err_nomem;
1116         }
1117
1118         rx_ring->size = rx_ring->count * sizeof(struct e1000_rx_desc);
1119         rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1120                                            &rx_ring->dma, GFP_KERNEL);
1121         if (!rx_ring->desc) {
1122                 ret_val = 6;
1123                 goto err_nomem;
1124         }
1125         rx_ring->next_to_use = 0;
1126         rx_ring->next_to_clean = 0;
1127
1128         rctl = er32(RCTL);
1129         ew32(RCTL, rctl & ~E1000_RCTL_EN);
1130         ew32(RDBAL, ((u64) rx_ring->dma & 0xFFFFFFFF));
1131         ew32(RDBAH, ((u64) rx_ring->dma >> 32));
1132         ew32(RDLEN, rx_ring->size);
1133         ew32(RDH, 0);
1134         ew32(RDT, 0);
1135         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1136                 E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1137                 E1000_RCTL_SBP | E1000_RCTL_SECRC |
1138                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1139                 (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1140         ew32(RCTL, rctl);
1141
1142         for (i = 0; i < rx_ring->count; i++) {
1143                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rx_ring, i);
1144                 struct sk_buff *skb;
1145
1146                 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1147                 if (!skb) {
1148                         ret_val = 7;
1149                         goto err_nomem;
1150                 }
1151                 skb_reserve(skb, NET_IP_ALIGN);
1152                 rx_ring->buffer_info[i].skb = skb;
1153                 rx_ring->buffer_info[i].dma =
1154                         pci_map_single(pdev, skb->data, 2048,
1155                                        PCI_DMA_FROMDEVICE);
1156                 if (pci_dma_mapping_error(pdev, rx_ring->buffer_info[i].dma)) {
1157                         ret_val = 8;
1158                         goto err_nomem;
1159                 }
1160                 rx_desc->buffer_addr =
1161                         cpu_to_le64(rx_ring->buffer_info[i].dma);
1162                 memset(skb->data, 0x00, skb->len);
1163         }
1164
1165         return 0;
1166
1167 err_nomem:
1168         e1000_free_desc_rings(adapter);
1169         return ret_val;
1170 }
1171
1172 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1173 {
1174         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1175         e1e_wphy(&adapter->hw, 29, 0x001F);
1176         e1e_wphy(&adapter->hw, 30, 0x8FFC);
1177         e1e_wphy(&adapter->hw, 29, 0x001A);
1178         e1e_wphy(&adapter->hw, 30, 0x8FF0);
1179 }
1180
1181 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1182 {
1183         struct e1000_hw *hw = &adapter->hw;
1184         u32 ctrl_reg = 0;
1185         u32 stat_reg = 0;
1186         u16 phy_reg = 0;
1187
1188         hw->mac.autoneg = 0;
1189
1190         if (hw->phy.type == e1000_phy_m88) {
1191                 /* Auto-MDI/MDIX Off */
1192                 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1193                 /* reset to update Auto-MDI/MDIX */
1194                 e1e_wphy(hw, PHY_CONTROL, 0x9140);
1195                 /* autoneg off */
1196                 e1e_wphy(hw, PHY_CONTROL, 0x8140);
1197         } else if (hw->phy.type == e1000_phy_gg82563)
1198                 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1199
1200         ctrl_reg = er32(CTRL);
1201
1202         switch (hw->phy.type) {
1203         case e1000_phy_ife:
1204                 /* force 100, set loopback */
1205                 e1e_wphy(hw, PHY_CONTROL, 0x6100);
1206
1207                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1208                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1209                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1210                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1211                              E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1212                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1213                 break;
1214         case e1000_phy_bm:
1215                 /* Set Default MAC Interface speed to 1GB */
1216                 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1217                 phy_reg &= ~0x0007;
1218                 phy_reg |= 0x006;
1219                 e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1220                 /* Assert SW reset for above settings to take effect */
1221                 e1000e_commit_phy(hw);
1222                 mdelay(1);
1223                 /* Force Full Duplex */
1224                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1225                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1226                 /* Set Link Up (in force link) */
1227                 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1228                 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1229                 /* Force Link */
1230                 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1231                 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1232                 /* Set Early Link Enable */
1233                 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1234                 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1235                 /* fall through */
1236         default:
1237                 /* force 1000, set loopback */
1238                 e1e_wphy(hw, PHY_CONTROL, 0x4140);
1239                 mdelay(250);
1240
1241                 /* Now set up the MAC to the same speed/duplex as the PHY. */
1242                 ctrl_reg = er32(CTRL);
1243                 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1244                 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1245                              E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1246                              E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1247                              E1000_CTRL_FD);     /* Force Duplex to FULL */
1248
1249                 if (adapter->flags & FLAG_IS_ICH)
1250                         ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1251         }
1252
1253         if (hw->phy.media_type == e1000_media_type_copper &&
1254             hw->phy.type == e1000_phy_m88) {
1255                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1256         } else {
1257                 /*
1258                  * Set the ILOS bit on the fiber Nic if half duplex link is
1259                  * detected.
1260                  */
1261                 stat_reg = er32(STATUS);
1262                 if ((stat_reg & E1000_STATUS_FD) == 0)
1263                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1264         }
1265
1266         ew32(CTRL, ctrl_reg);
1267
1268         /*
1269          * Disable the receiver on the PHY so when a cable is plugged in, the
1270          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1271          */
1272         if (hw->phy.type == e1000_phy_m88)
1273                 e1000_phy_disable_receiver(adapter);
1274
1275         udelay(500);
1276
1277         return 0;
1278 }
1279
1280 static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1281 {
1282         struct e1000_hw *hw = &adapter->hw;
1283         u32 ctrl = er32(CTRL);
1284         int link = 0;
1285
1286         /* special requirements for 82571/82572 fiber adapters */
1287
1288         /*
1289          * jump through hoops to make sure link is up because serdes
1290          * link is hardwired up
1291          */
1292         ctrl |= E1000_CTRL_SLU;
1293         ew32(CTRL, ctrl);
1294
1295         /* disable autoneg */
1296         ctrl = er32(TXCW);
1297         ctrl &= ~(1 << 31);
1298         ew32(TXCW, ctrl);
1299
1300         link = (er32(STATUS) & E1000_STATUS_LU);
1301
1302         if (!link) {
1303                 /* set invert loss of signal */
1304                 ctrl = er32(CTRL);
1305                 ctrl |= E1000_CTRL_ILOS;
1306                 ew32(CTRL, ctrl);
1307         }
1308
1309         /*
1310          * special write to serdes control register to enable SerDes analog
1311          * loopback
1312          */
1313 #define E1000_SERDES_LB_ON 0x410
1314         ew32(SCTL, E1000_SERDES_LB_ON);
1315         msleep(10);
1316
1317         return 0;
1318 }
1319
1320 /* only call this for fiber/serdes connections to es2lan */
1321 static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1322 {
1323         struct e1000_hw *hw = &adapter->hw;
1324         u32 ctrlext = er32(CTRL_EXT);
1325         u32 ctrl = er32(CTRL);
1326
1327         /*
1328          * save CTRL_EXT to restore later, reuse an empty variable (unused
1329          * on mac_type 80003es2lan)
1330          */
1331         adapter->tx_fifo_head = ctrlext;
1332
1333         /* clear the serdes mode bits, putting the device into mac loopback */
1334         ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1335         ew32(CTRL_EXT, ctrlext);
1336
1337         /* force speed to 1000/FD, link up */
1338         ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1339         ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1340                  E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1341         ew32(CTRL, ctrl);
1342
1343         /* set mac loopback */
1344         ctrl = er32(RCTL);
1345         ctrl |= E1000_RCTL_LBM_MAC;
1346         ew32(RCTL, ctrl);
1347
1348         /* set testing mode parameters (no need to reset later) */
1349 #define KMRNCTRLSTA_OPMODE (0x1F << 16)
1350 #define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1351         ew32(KMRNCTRLSTA,
1352              (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1353
1354         return 0;
1355 }
1356
1357 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1358 {
1359         struct e1000_hw *hw = &adapter->hw;
1360         u32 rctl;
1361
1362         if (hw->phy.media_type == e1000_media_type_fiber ||
1363             hw->phy.media_type == e1000_media_type_internal_serdes) {
1364                 switch (hw->mac.type) {
1365                 case e1000_80003es2lan:
1366                         return e1000_set_es2lan_mac_loopback(adapter);
1367                         break;
1368                 case e1000_82571:
1369                 case e1000_82572:
1370                         return e1000_set_82571_fiber_loopback(adapter);
1371                         break;
1372                 default:
1373                         rctl = er32(RCTL);
1374                         rctl |= E1000_RCTL_LBM_TCVR;
1375                         ew32(RCTL, rctl);
1376                         return 0;
1377                 }
1378         } else if (hw->phy.media_type == e1000_media_type_copper) {
1379                 return e1000_integrated_phy_loopback(adapter);
1380         }
1381
1382         return 7;
1383 }
1384
1385 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1386 {
1387         struct e1000_hw *hw = &adapter->hw;
1388         u32 rctl;
1389         u16 phy_reg;
1390
1391         rctl = er32(RCTL);
1392         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1393         ew32(RCTL, rctl);
1394
1395         switch (hw->mac.type) {
1396         case e1000_80003es2lan:
1397                 if (hw->phy.media_type == e1000_media_type_fiber ||
1398                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1399                         /* restore CTRL_EXT, stealing space from tx_fifo_head */
1400                         ew32(CTRL_EXT, adapter->tx_fifo_head);
1401                         adapter->tx_fifo_head = 0;
1402                 }
1403                 /* fall through */
1404         case e1000_82571:
1405         case e1000_82572:
1406                 if (hw->phy.media_type == e1000_media_type_fiber ||
1407                     hw->phy.media_type == e1000_media_type_internal_serdes) {
1408 #define E1000_SERDES_LB_OFF 0x400
1409                         ew32(SCTL, E1000_SERDES_LB_OFF);
1410                         msleep(10);
1411                         break;
1412                 }
1413                 /* Fall Through */
1414         default:
1415                 hw->mac.autoneg = 1;
1416                 if (hw->phy.type == e1000_phy_gg82563)
1417                         e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1418                 e1e_rphy(hw, PHY_CONTROL, &phy_reg);
1419                 if (phy_reg & MII_CR_LOOPBACK) {
1420                         phy_reg &= ~MII_CR_LOOPBACK;
1421                         e1e_wphy(hw, PHY_CONTROL, phy_reg);
1422                         e1000e_commit_phy(hw);
1423                 }
1424                 break;
1425         }
1426 }
1427
1428 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1429                                       unsigned int frame_size)
1430 {
1431         memset(skb->data, 0xFF, frame_size);
1432         frame_size &= ~1;
1433         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1434         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1435         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1436 }
1437
1438 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1439                                     unsigned int frame_size)
1440 {
1441         frame_size &= ~1;
1442         if (*(skb->data + 3) == 0xFF)
1443                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1444                    (*(skb->data + frame_size / 2 + 12) == 0xAF))
1445                         return 0;
1446         return 13;
1447 }
1448
1449 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1450 {
1451         struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1452         struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1453         struct pci_dev *pdev = adapter->pdev;
1454         struct e1000_hw *hw = &adapter->hw;
1455         int i, j, k, l;
1456         int lc;
1457         int good_cnt;
1458         int ret_val = 0;
1459         unsigned long time;
1460
1461         ew32(RDT, rx_ring->count - 1);
1462
1463         /*
1464          * Calculate the loop count based on the largest descriptor ring
1465          * The idea is to wrap the largest ring a number of times using 64
1466          * send/receive pairs during each loop
1467          */
1468
1469         if (rx_ring->count <= tx_ring->count)
1470                 lc = ((tx_ring->count / 64) * 2) + 1;
1471         else
1472                 lc = ((rx_ring->count / 64) * 2) + 1;
1473
1474         k = 0;
1475         l = 0;
1476         for (j = 0; j <= lc; j++) { /* loop count loop */
1477                 for (i = 0; i < 64; i++) { /* send the packets */
1478                         e1000_create_lbtest_frame(tx_ring->buffer_info[k].skb,
1479                                                   1024);
1480                         pci_dma_sync_single_for_device(pdev,
1481                                         tx_ring->buffer_info[k].dma,
1482                                         tx_ring->buffer_info[k].length,
1483                                         PCI_DMA_TODEVICE);
1484                         k++;
1485                         if (k == tx_ring->count)
1486                                 k = 0;
1487                 }
1488                 ew32(TDT, k);
1489                 msleep(200);
1490                 time = jiffies; /* set the start time for the receive */
1491                 good_cnt = 0;
1492                 do { /* receive the sent packets */
1493                         pci_dma_sync_single_for_cpu(pdev,
1494                                         rx_ring->buffer_info[l].dma, 2048,
1495                                         PCI_DMA_FROMDEVICE);
1496
1497                         ret_val = e1000_check_lbtest_frame(
1498                                         rx_ring->buffer_info[l].skb, 1024);
1499                         if (!ret_val)
1500                                 good_cnt++;
1501                         l++;
1502                         if (l == rx_ring->count)
1503                                 l = 0;
1504                         /*
1505                          * time + 20 msecs (200 msecs on 2.4) is more than
1506                          * enough time to complete the receives, if it's
1507                          * exceeded, break and error off
1508                          */
1509                 } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1510                 if (good_cnt != 64) {
1511                         ret_val = 13; /* ret_val is the same as mis-compare */
1512                         break;
1513                 }
1514                 if (jiffies >= (time + 20)) {
1515                         ret_val = 14; /* error code for time out error */
1516                         break;
1517                 }
1518         } /* end loop count loop */
1519         return ret_val;
1520 }
1521
1522 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1523 {
1524         /*
1525          * PHY loopback cannot be performed if SoL/IDER
1526          * sessions are active
1527          */
1528         if (e1000_check_reset_block(&adapter->hw)) {
1529                 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1530                 *data = 0;
1531                 goto out;
1532         }
1533
1534         *data = e1000_setup_desc_rings(adapter);
1535         if (*data)
1536                 goto out;
1537
1538         *data = e1000_setup_loopback_test(adapter);
1539         if (*data)
1540                 goto err_loopback;
1541
1542         *data = e1000_run_loopback_test(adapter);
1543         e1000_loopback_cleanup(adapter);
1544
1545 err_loopback:
1546         e1000_free_desc_rings(adapter);
1547 out:
1548         return *data;
1549 }
1550
1551 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1552 {
1553         struct e1000_hw *hw = &adapter->hw;
1554
1555         *data = 0;
1556         if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1557                 int i = 0;
1558                 hw->mac.serdes_has_link = 0;
1559
1560                 /*
1561                  * On some blade server designs, link establishment
1562                  * could take as long as 2-3 minutes
1563                  */
1564                 do {
1565                         hw->mac.ops.check_for_link(hw);
1566                         if (hw->mac.serdes_has_link)
1567                                 return *data;
1568                         msleep(20);
1569                 } while (i++ < 3750);
1570
1571                 *data = 1;
1572         } else {
1573                 hw->mac.ops.check_for_link(hw);
1574                 if (hw->mac.autoneg)
1575                         msleep(4000);
1576
1577                 if (!(er32(STATUS) &
1578                       E1000_STATUS_LU))
1579                         *data = 1;
1580         }
1581         return *data;
1582 }
1583
1584 static int e1000e_get_sset_count(struct net_device *netdev, int sset)
1585 {
1586         switch (sset) {
1587         case ETH_SS_TEST:
1588                 return E1000_TEST_LEN;
1589         case ETH_SS_STATS:
1590                 return E1000_STATS_LEN;
1591         default:
1592                 return -EOPNOTSUPP;
1593         }
1594 }
1595
1596 static void e1000_diag_test(struct net_device *netdev,
1597                             struct ethtool_test *eth_test, u64 *data)
1598 {
1599         struct e1000_adapter *adapter = netdev_priv(netdev);
1600         u16 autoneg_advertised;
1601         u8 forced_speed_duplex;
1602         u8 autoneg;
1603         bool if_running = netif_running(netdev);
1604
1605         set_bit(__E1000_TESTING, &adapter->state);
1606         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1607                 /* Offline tests */
1608
1609                 /* save speed, duplex, autoneg settings */
1610                 autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1611                 forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1612                 autoneg = adapter->hw.mac.autoneg;
1613
1614                 e_info("offline testing starting\n");
1615
1616                 /*
1617                  * Link test performed before hardware reset so autoneg doesn't
1618                  * interfere with test result
1619                  */
1620                 if (e1000_link_test(adapter, &data[4]))
1621                         eth_test->flags |= ETH_TEST_FL_FAILED;
1622
1623                 if (if_running)
1624                         /* indicate we're in test mode */
1625                         dev_close(netdev);
1626                 else
1627                         e1000e_reset(adapter);
1628
1629                 if (e1000_reg_test(adapter, &data[0]))
1630                         eth_test->flags |= ETH_TEST_FL_FAILED;
1631
1632                 e1000e_reset(adapter);
1633                 if (e1000_eeprom_test(adapter, &data[1]))
1634                         eth_test->flags |= ETH_TEST_FL_FAILED;
1635
1636                 e1000e_reset(adapter);
1637                 if (e1000_intr_test(adapter, &data[2]))
1638                         eth_test->flags |= ETH_TEST_FL_FAILED;
1639
1640                 e1000e_reset(adapter);
1641                 /* make sure the phy is powered up */
1642                 e1000e_power_up_phy(adapter);
1643                 if (e1000_loopback_test(adapter, &data[3]))
1644                         eth_test->flags |= ETH_TEST_FL_FAILED;
1645
1646                 /* restore speed, duplex, autoneg settings */
1647                 adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1648                 adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1649                 adapter->hw.mac.autoneg = autoneg;
1650
1651                 /* force this routine to wait until autoneg complete/timeout */
1652                 adapter->hw.phy.autoneg_wait_to_complete = 1;
1653                 e1000e_reset(adapter);
1654                 adapter->hw.phy.autoneg_wait_to_complete = 0;
1655
1656                 clear_bit(__E1000_TESTING, &adapter->state);
1657                 if (if_running)
1658                         dev_open(netdev);
1659         } else {
1660                 e_info("online testing starting\n");
1661                 /* Online tests */
1662                 if (e1000_link_test(adapter, &data[4]))
1663                         eth_test->flags |= ETH_TEST_FL_FAILED;
1664
1665                 /* Online tests aren't run; pass by default */
1666                 data[0] = 0;
1667                 data[1] = 0;
1668                 data[2] = 0;
1669                 data[3] = 0;
1670
1671                 clear_bit(__E1000_TESTING, &adapter->state);
1672         }
1673         msleep_interruptible(4 * 1000);
1674 }
1675
1676 static void e1000_get_wol(struct net_device *netdev,
1677                           struct ethtool_wolinfo *wol)
1678 {
1679         struct e1000_adapter *adapter = netdev_priv(netdev);
1680
1681         wol->supported = 0;
1682         wol->wolopts = 0;
1683
1684         if (!(adapter->flags & FLAG_HAS_WOL))
1685                 return;
1686
1687         wol->supported = WAKE_UCAST | WAKE_MCAST |
1688                          WAKE_BCAST | WAKE_MAGIC |
1689                          WAKE_PHY | WAKE_ARP;
1690
1691         /* apply any specific unsupported masks here */
1692         if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1693                 wol->supported &= ~WAKE_UCAST;
1694
1695                 if (adapter->wol & E1000_WUFC_EX)
1696                         e_err("Interface does not support directed (unicast) "
1697                               "frame wake-up packets\n");
1698         }
1699
1700         if (adapter->wol & E1000_WUFC_EX)
1701                 wol->wolopts |= WAKE_UCAST;
1702         if (adapter->wol & E1000_WUFC_MC)
1703                 wol->wolopts |= WAKE_MCAST;
1704         if (adapter->wol & E1000_WUFC_BC)
1705                 wol->wolopts |= WAKE_BCAST;
1706         if (adapter->wol & E1000_WUFC_MAG)
1707                 wol->wolopts |= WAKE_MAGIC;
1708         if (adapter->wol & E1000_WUFC_LNKC)
1709                 wol->wolopts |= WAKE_PHY;
1710         if (adapter->wol & E1000_WUFC_ARP)
1711                 wol->wolopts |= WAKE_ARP;
1712 }
1713
1714 static int e1000_set_wol(struct net_device *netdev,
1715                          struct ethtool_wolinfo *wol)
1716 {
1717         struct e1000_adapter *adapter = netdev_priv(netdev);
1718
1719         if (wol->wolopts & WAKE_MAGICSECURE)
1720                 return -EOPNOTSUPP;
1721
1722         if (!(adapter->flags & FLAG_HAS_WOL))
1723                 return wol->wolopts ? -EOPNOTSUPP : 0;
1724
1725         /* these settings will always override what we currently have */
1726         adapter->wol = 0;
1727
1728         if (wol->wolopts & WAKE_UCAST)
1729                 adapter->wol |= E1000_WUFC_EX;
1730         if (wol->wolopts & WAKE_MCAST)
1731                 adapter->wol |= E1000_WUFC_MC;
1732         if (wol->wolopts & WAKE_BCAST)
1733                 adapter->wol |= E1000_WUFC_BC;
1734         if (wol->wolopts & WAKE_MAGIC)
1735                 adapter->wol |= E1000_WUFC_MAG;
1736         if (wol->wolopts & WAKE_PHY)
1737                 adapter->wol |= E1000_WUFC_LNKC;
1738         if (wol->wolopts & WAKE_ARP)
1739                 adapter->wol |= E1000_WUFC_ARP;
1740
1741         return 0;
1742 }
1743
1744 /* toggle LED 4 times per second = 2 "blinks" per second */
1745 #define E1000_ID_INTERVAL       (HZ/4)
1746
1747 /* bit defines for adapter->led_status */
1748 #define E1000_LED_ON            0
1749
1750 static void e1000_led_blink_callback(unsigned long data)
1751 {
1752         struct e1000_adapter *adapter = (struct e1000_adapter *) data;
1753
1754         if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
1755                 adapter->hw.mac.ops.led_off(&adapter->hw);
1756         else
1757                 adapter->hw.mac.ops.led_on(&adapter->hw);
1758
1759         mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
1760 }
1761
1762 static int e1000_phys_id(struct net_device *netdev, u32 data)
1763 {
1764         struct e1000_adapter *adapter = netdev_priv(netdev);
1765
1766         if (!data)
1767                 data = INT_MAX;
1768
1769         if (adapter->hw.phy.type == e1000_phy_ife) {
1770                 if (!adapter->blink_timer.function) {
1771                         init_timer(&adapter->blink_timer);
1772                         adapter->blink_timer.function =
1773                                 e1000_led_blink_callback;
1774                         adapter->blink_timer.data = (unsigned long) adapter;
1775                 }
1776                 mod_timer(&adapter->blink_timer, jiffies);
1777                 msleep_interruptible(data * 1000);
1778                 del_timer_sync(&adapter->blink_timer);
1779                 e1e_wphy(&adapter->hw,
1780                                     IFE_PHY_SPECIAL_CONTROL_LED, 0);
1781         } else {
1782                 e1000e_blink_led(&adapter->hw);
1783                 msleep_interruptible(data * 1000);
1784         }
1785
1786         adapter->hw.mac.ops.led_off(&adapter->hw);
1787         clear_bit(E1000_LED_ON, &adapter->led_status);
1788         adapter->hw.mac.ops.cleanup_led(&adapter->hw);
1789
1790         return 0;
1791 }
1792
1793 static int e1000_get_coalesce(struct net_device *netdev,
1794                               struct ethtool_coalesce *ec)
1795 {
1796         struct e1000_adapter *adapter = netdev_priv(netdev);
1797
1798         if (adapter->itr_setting <= 3)
1799                 ec->rx_coalesce_usecs = adapter->itr_setting;
1800         else
1801                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1802
1803         return 0;
1804 }
1805
1806 static int e1000_set_coalesce(struct net_device *netdev,
1807                               struct ethtool_coalesce *ec)
1808 {
1809         struct e1000_adapter *adapter = netdev_priv(netdev);
1810         struct e1000_hw *hw = &adapter->hw;
1811
1812         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1813             ((ec->rx_coalesce_usecs > 3) &&
1814              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1815             (ec->rx_coalesce_usecs == 2))
1816                 return -EINVAL;
1817
1818         if (ec->rx_coalesce_usecs <= 3) {
1819                 adapter->itr = 20000;
1820                 adapter->itr_setting = ec->rx_coalesce_usecs;
1821         } else {
1822                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1823                 adapter->itr_setting = adapter->itr & ~3;
1824         }
1825
1826         if (adapter->itr_setting != 0)
1827                 ew32(ITR, 1000000000 / (adapter->itr * 256));
1828         else
1829                 ew32(ITR, 0);
1830
1831         return 0;
1832 }
1833
1834 static int e1000_nway_reset(struct net_device *netdev)
1835 {
1836         struct e1000_adapter *adapter = netdev_priv(netdev);
1837         if (netif_running(netdev))
1838                 e1000e_reinit_locked(adapter);
1839         return 0;
1840 }
1841
1842 static void e1000_get_ethtool_stats(struct net_device *netdev,
1843                                     struct ethtool_stats *stats,
1844                                     u64 *data)
1845 {
1846         struct e1000_adapter *adapter = netdev_priv(netdev);
1847         int i;
1848
1849         e1000e_update_stats(adapter);
1850         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1851                 char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
1852                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1853                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1854         }
1855 }
1856
1857 static void e1000_get_strings(struct net_device *netdev, u32 stringset,
1858                               u8 *data)
1859 {
1860         u8 *p = data;
1861         int i;
1862
1863         switch (stringset) {
1864         case ETH_SS_TEST:
1865                 memcpy(data, *e1000_gstrings_test, sizeof(e1000_gstrings_test));
1866                 break;
1867         case ETH_SS_STATS:
1868                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1869                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1870                                ETH_GSTRING_LEN);
1871                         p += ETH_GSTRING_LEN;
1872                 }
1873                 break;
1874         }
1875 }
1876
1877 static const struct ethtool_ops e1000_ethtool_ops = {
1878         .get_settings           = e1000_get_settings,
1879         .set_settings           = e1000_set_settings,
1880         .get_drvinfo            = e1000_get_drvinfo,
1881         .get_regs_len           = e1000_get_regs_len,
1882         .get_regs               = e1000_get_regs,
1883         .get_wol                = e1000_get_wol,
1884         .set_wol                = e1000_set_wol,
1885         .get_msglevel           = e1000_get_msglevel,
1886         .set_msglevel           = e1000_set_msglevel,
1887         .nway_reset             = e1000_nway_reset,
1888         .get_link               = e1000_get_link,
1889         .get_eeprom_len         = e1000_get_eeprom_len,
1890         .get_eeprom             = e1000_get_eeprom,
1891         .set_eeprom             = e1000_set_eeprom,
1892         .get_ringparam          = e1000_get_ringparam,
1893         .set_ringparam          = e1000_set_ringparam,
1894         .get_pauseparam         = e1000_get_pauseparam,
1895         .set_pauseparam         = e1000_set_pauseparam,
1896         .get_rx_csum            = e1000_get_rx_csum,
1897         .set_rx_csum            = e1000_set_rx_csum,
1898         .get_tx_csum            = e1000_get_tx_csum,
1899         .set_tx_csum            = e1000_set_tx_csum,
1900         .get_sg                 = ethtool_op_get_sg,
1901         .set_sg                 = ethtool_op_set_sg,
1902         .get_tso                = ethtool_op_get_tso,
1903         .set_tso                = e1000_set_tso,
1904         .self_test              = e1000_diag_test,
1905         .get_strings            = e1000_get_strings,
1906         .phys_id                = e1000_phys_id,
1907         .get_ethtool_stats      = e1000_get_ethtool_stats,
1908         .get_sset_count         = e1000e_get_sset_count,
1909         .get_coalesce           = e1000_get_coalesce,
1910         .set_coalesce           = e1000_set_coalesce,
1911 };
1912
1913 void e1000e_set_ethtool_ops(struct net_device *netdev)
1914 {
1915         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
1916 }