drivers/net/ethernet/intel/e1000/e1000_ethtool.c

   1 /*******************************************************************************
   2  * Intel PRO/1000 Linux driver
   3  * Copyright(c) 1999 - 2006 Intel Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * The full GNU General Public License is included in this distribution in
  15  * the file called "COPYING".
  16  *
  17  * Contact Information:
  18  * Linux NICS <linux.nics@intel.com>
  19  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  20  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  21  *
  22  ******************************************************************************/
  23
  24 /* ethtool support for e1000 */
  25
  26 #include "e1000.h"
  27 #include <linux/jiffies.h>
  28 #include <linux/uaccess.h>
  29
  30 enum {NETDEV_STATS, E1000_STATS};
  31
  32 struct e1000_stats {
  33         char stat_string[ETH_GSTRING_LEN];
  34         int type;
  35         int sizeof_stat;
  36         int stat_offset;
  37 };
  38
  39 #define E1000_STAT(m)           E1000_STATS, \
  40                                 sizeof(((struct e1000_adapter *)0)->m), \
  41                                 offsetof(struct e1000_adapter, m)
  42 #define E1000_NETDEV_STAT(m)    NETDEV_STATS, \
  43                                 sizeof(((struct net_device *)0)->m), \
  44                                 offsetof(struct net_device, m)
  45
  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.gorcl) },
  50         { "tx_bytes", E1000_STAT(stats.gotcl) },
  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(stats.rxerrc) },
  56         { "tx_errors", E1000_STAT(stats.txerrc) },
  57         { "tx_dropped", E1000_NETDEV_STAT(stats.tx_dropped) },
  58         { "multicast", E1000_STAT(stats.mprc) },
  59         { "collisions", E1000_STAT(stats.colc) },
  60         { "rx_length_errors", E1000_STAT(stats.rlerrc) },
  61         { "rx_over_errors", E1000_NETDEV_STAT(stats.rx_over_errors) },
  62         { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
  63         { "rx_frame_errors", E1000_NETDEV_STAT(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_NETDEV_STAT(stats.tx_fifo_errors) },
  69         { "tx_heartbeat_errors", E1000_NETDEV_STAT(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.gorcl) },
  87         { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
  88         { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
  89         { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
  90         { "tx_smbus", E1000_STAT(stats.mgptc) },
  91         { "rx_smbus", E1000_STAT(stats.mgprc) },
  92         { "dropped_smbus", E1000_STAT(stats.mgpdc) },
  93 };
  94
  95 #define E1000_QUEUE_STATS_LEN 0
  96 #define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
  97 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)
  98 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
  99         "Register test  (offline)", "Eeprom test    (offline)",
 100         "Interrupt test (offline)", "Loopback test  (offline)",
 101         "Link test   (on/offline)"
 102 };
 103
 104 #define E1000_TEST_LEN  ARRAY_SIZE(e1000_gstrings_test)
 105
 106 static int e1000_get_settings(struct net_device *netdev,
 107                               struct ethtool_cmd *ecmd)
 108 {
 109         struct e1000_adapter *adapter = netdev_priv(netdev);
 110         struct e1000_hw *hw = &adapter->hw;
 111
 112         if (hw->media_type == e1000_media_type_copper) {
 113                 ecmd->supported = (SUPPORTED_10baseT_Half |
 114                                    SUPPORTED_10baseT_Full |
 115                                    SUPPORTED_100baseT_Half |
 116                                    SUPPORTED_100baseT_Full |
 117                                    SUPPORTED_1000baseT_Full|
 118                                    SUPPORTED_Autoneg |
 119                                    SUPPORTED_TP);
 120                 ecmd->advertising = ADVERTISED_TP;
 121
 122                 if (hw->autoneg == 1) {
 123                         ecmd->advertising |= ADVERTISED_Autoneg;
 124                         /* the e1000 autoneg seems to match ethtool nicely */
 125                         ecmd->advertising |= hw->autoneg_advertised;
 126                 }
 127
 128                 ecmd->port = PORT_TP;
 129                 ecmd->phy_address = hw->phy_addr;
 130
 131                 if (hw->mac_type == e1000_82543)
 132                         ecmd->transceiver = XCVR_EXTERNAL;
 133                 else
 134                         ecmd->transceiver = XCVR_INTERNAL;
 135
 136         } else {
 137                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 138                                      SUPPORTED_FIBRE |
 139                                      SUPPORTED_Autoneg);
 140
 141                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 142                                      ADVERTISED_FIBRE |
 143                                      ADVERTISED_Autoneg);
 144
 145                 ecmd->port = PORT_FIBRE;
 146
 147                 if (hw->mac_type >= e1000_82545)
 148                         ecmd->transceiver = XCVR_INTERNAL;
 149                 else
 150                         ecmd->transceiver = XCVR_EXTERNAL;
 151         }
 152
 153         if (er32(STATUS) & E1000_STATUS_LU) {
 154                 e1000_get_speed_and_duplex(hw, &adapter->link_speed,
 155                                            &adapter->link_duplex);
 156                 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
 157
 158                 /* unfortunately FULL_DUPLEX != DUPLEX_FULL
 159                  * and HALF_DUPLEX != DUPLEX_HALF
 160                  */
 161                 if (adapter->link_duplex == FULL_DUPLEX)
 162                         ecmd->duplex = DUPLEX_FULL;
 163                 else
 164                         ecmd->duplex = DUPLEX_HALF;
 165         } else {
 166                 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 167                 ecmd->duplex = DUPLEX_UNKNOWN;
 168         }
 169
 170         ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
 171                          hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 172
 173         /* MDI-X => 1; MDI => 0 */
 174         if ((hw->media_type == e1000_media_type_copper) &&
 175             netif_carrier_ok(netdev))
 176                 ecmd->eth_tp_mdix = (!!adapter->phy_info.mdix_mode ?
 177                                      ETH_TP_MDI_X : ETH_TP_MDI);
 178         else
 179                 ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 180
 181         if (hw->mdix == AUTO_ALL_MODES)
 182                 ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 183         else
 184                 ecmd->eth_tp_mdix_ctrl = hw->mdix;
 185         return 0;
 186 }
 187
 188 static int e1000_set_settings(struct net_device *netdev,
 189                               struct ethtool_cmd *ecmd)
 190 {
 191         struct e1000_adapter *adapter = netdev_priv(netdev);
 192         struct e1000_hw *hw = &adapter->hw;
 193
 194         /* MDI setting is only allowed when autoneg enabled because
 195          * some hardware doesn't allow MDI setting when speed or
 196          * duplex is forced.
 197          */
 198         if (ecmd->eth_tp_mdix_ctrl) {
 199                 if (hw->media_type != e1000_media_type_copper)
 200                         return -EOPNOTSUPP;
 201
 202                 if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
 203                     (ecmd->autoneg != AUTONEG_ENABLE)) {
 204                         e_err(drv, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
 205                         return -EINVAL;
 206                 }
 207         }
 208
 209         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 210                 msleep(1);
 211
 212         if (ecmd->autoneg == AUTONEG_ENABLE) {
 213                 hw->autoneg = 1;
 214                 if (hw->media_type == e1000_media_type_fiber)
 215                         hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
 216                                      ADVERTISED_FIBRE |
 217                                      ADVERTISED_Autoneg;
 218                 else
 219                         hw->autoneg_advertised = ecmd->advertising |
 220                                                  ADVERTISED_TP |
 221                                                  ADVERTISED_Autoneg;
 222                 ecmd->advertising = hw->autoneg_advertised;
 223         } else {
 224                 u32 speed = ethtool_cmd_speed(ecmd);
 225                 /* calling this overrides forced MDI setting */
 226                 if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 227                         clear_bit(__E1000_RESETTING, &adapter->flags);
 228                         return -EINVAL;
 229                 }
 230         }
 231
 232         /* MDI-X => 2; MDI => 1; Auto => 3 */
 233         if (ecmd->eth_tp_mdix_ctrl) {
 234                 if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
 235                         hw->mdix = AUTO_ALL_MODES;
 236                 else
 237                         hw->mdix = ecmd->eth_tp_mdix_ctrl;
 238         }
 239
 240         /* reset the link */
 241
 242         if (netif_running(adapter->netdev)) {
 243                 e1000_down(adapter);
 244                 e1000_up(adapter);
 245         } else {
 246                 e1000_reset(adapter);
 247         }
 248         clear_bit(__E1000_RESETTING, &adapter->flags);
 249         return 0;
 250 }
 251
 252 static u32 e1000_get_link(struct net_device *netdev)
 253 {
 254         struct e1000_adapter *adapter = netdev_priv(netdev);
 255
 256         /* If the link is not reported up to netdev, interrupts are disabled,
 257          * and so the physical link state may have changed since we last
 258          * looked. Set get_link_status to make sure that the true link
 259          * state is interrogated, rather than pulling a cached and possibly
 260          * stale link state from the driver.
 261          */
 262         if (!netif_carrier_ok(netdev))
 263                 adapter->hw.get_link_status = 1;
 264
 265         return e1000_has_link(adapter);
 266 }
 267
 268 static void e1000_get_pauseparam(struct net_device *netdev,
 269                                  struct ethtool_pauseparam *pause)
 270 {
 271         struct e1000_adapter *adapter = netdev_priv(netdev);
 272         struct e1000_hw *hw = &adapter->hw;
 273
 274         pause->autoneg =
 275                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 276
 277         if (hw->fc == E1000_FC_RX_PAUSE) {
 278                 pause->rx_pause = 1;
 279         } else if (hw->fc == E1000_FC_TX_PAUSE) {
 280                 pause->tx_pause = 1;
 281         } else if (hw->fc == E1000_FC_FULL) {
 282                 pause->rx_pause = 1;
 283                 pause->tx_pause = 1;
 284         }
 285 }
 286
 287 static int e1000_set_pauseparam(struct net_device *netdev,
 288                                 struct ethtool_pauseparam *pause)
 289 {
 290         struct e1000_adapter *adapter = netdev_priv(netdev);
 291         struct e1000_hw *hw = &adapter->hw;
 292         int retval = 0;
 293
 294         adapter->fc_autoneg = pause->autoneg;
 295
 296         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 297                 msleep(1);
 298
 299         if (pause->rx_pause && pause->tx_pause)
 300                 hw->fc = E1000_FC_FULL;
 301         else if (pause->rx_pause && !pause->tx_pause)
 302                 hw->fc = E1000_FC_RX_PAUSE;
 303         else if (!pause->rx_pause && pause->tx_pause)
 304                 hw->fc = E1000_FC_TX_PAUSE;
 305         else if (!pause->rx_pause && !pause->tx_pause)
 306                 hw->fc = E1000_FC_NONE;
 307
 308         hw->original_fc = hw->fc;
 309
 310         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 311                 if (netif_running(adapter->netdev)) {
 312                         e1000_down(adapter);
 313                         e1000_up(adapter);
 314                 } else {
 315                         e1000_reset(adapter);
 316                 }
 317         } else
 318                 retval = ((hw->media_type == e1000_media_type_fiber) ?
 319                           e1000_setup_link(hw) : e1000_force_mac_fc(hw));
 320
 321         clear_bit(__E1000_RESETTING, &adapter->flags);
 322         return retval;
 323 }
 324
 325 static u32 e1000_get_msglevel(struct net_device *netdev)
 326 {
 327         struct e1000_adapter *adapter = netdev_priv(netdev);
 328
 329         return adapter->msg_enable;
 330 }
 331
 332 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 333 {
 334         struct e1000_adapter *adapter = netdev_priv(netdev);
 335
 336         adapter->msg_enable = data;
 337 }
 338
 339 static int e1000_get_regs_len(struct net_device *netdev)
 340 {
 341 #define E1000_REGS_LEN 32
 342         return E1000_REGS_LEN * sizeof(u32);
 343 }
 344
 345 static void e1000_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 346                            void *p)
 347 {
 348         struct e1000_adapter *adapter = netdev_priv(netdev);
 349         struct e1000_hw *hw = &adapter->hw;
 350         u32 *regs_buff = p;
 351         u16 phy_data;
 352
 353         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 354
 355         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 356
 357         regs_buff[0]  = er32(CTRL);
 358         regs_buff[1]  = er32(STATUS);
 359
 360         regs_buff[2]  = er32(RCTL);
 361         regs_buff[3]  = er32(RDLEN);
 362         regs_buff[4]  = er32(RDH);
 363         regs_buff[5]  = er32(RDT);
 364         regs_buff[6]  = er32(RDTR);
 365
 366         regs_buff[7]  = er32(TCTL);
 367         regs_buff[8]  = er32(TDLEN);
 368         regs_buff[9]  = er32(TDH);
 369         regs_buff[10] = er32(TDT);
 370         regs_buff[11] = er32(TIDV);
 371
 372         regs_buff[12] = hw->phy_type;  /* PHY type (IGP=1, M88=0) */
 373         if (hw->phy_type == e1000_phy_igp) {
 374                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 375                                     IGP01E1000_PHY_AGC_A);
 376                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
 377                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 378                 regs_buff[13] = (u32)phy_data; /* cable length */
 379                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 380                                     IGP01E1000_PHY_AGC_B);
 381                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
 382                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 383                 regs_buff[14] = (u32)phy_data; /* cable length */
 384                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 385                                     IGP01E1000_PHY_AGC_C);
 386                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
 387                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 388                 regs_buff[15] = (u32)phy_data; /* cable length */
 389                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 390                                     IGP01E1000_PHY_AGC_D);
 391                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
 392                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 393                 regs_buff[16] = (u32)phy_data; /* cable length */
 394                 regs_buff[17] = 0; /* extended 10bt distance (not needed) */
 395                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 396                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
 397                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 398                 regs_buff[18] = (u32)phy_data; /* cable polarity */
 399                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 400                                     IGP01E1000_PHY_PCS_INIT_REG);
 401                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
 402                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 403                 regs_buff[19] = (u32)phy_data; /* cable polarity */
 404                 regs_buff[20] = 0; /* polarity correction enabled (always) */
 405                 regs_buff[22] = 0; /* phy receive errors (unavailable) */
 406                 regs_buff[23] = regs_buff[18]; /* mdix mode */
 407                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 408         } else {
 409                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 410                 regs_buff[13] = (u32)phy_data; /* cable length */
 411                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 412                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 413                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 414                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 415                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 416                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 417                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 418                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 419                 /* phy receive errors */
 420                 regs_buff[22] = adapter->phy_stats.receive_errors;
 421                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 422         }
 423         regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
 424         e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
 425         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 426         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 427         if (hw->mac_type >= e1000_82540 &&
 428             hw->media_type == e1000_media_type_copper) {
 429                 regs_buff[26] = er32(MANC);
 430         }
 431 }
 432
 433 static int e1000_get_eeprom_len(struct net_device *netdev)
 434 {
 435         struct e1000_adapter *adapter = netdev_priv(netdev);
 436         struct e1000_hw *hw = &adapter->hw;
 437
 438         return hw->eeprom.word_size * 2;
 439 }
 440
 441 static int e1000_get_eeprom(struct net_device *netdev,
 442                             struct ethtool_eeprom *eeprom, u8 *bytes)
 443 {
 444         struct e1000_adapter *adapter = netdev_priv(netdev);
 445         struct e1000_hw *hw = &adapter->hw;
 446         u16 *eeprom_buff;
 447         int first_word, last_word;
 448         int ret_val = 0;
 449         u16 i;
 450
 451         if (eeprom->len == 0)
 452                 return -EINVAL;
 453
 454         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 455
 456         first_word = eeprom->offset >> 1;
 457         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 458
 459         eeprom_buff = kmalloc(sizeof(u16) *
 460                         (last_word - first_word + 1), GFP_KERNEL);
 461         if (!eeprom_buff)
 462                 return -ENOMEM;
 463
 464         if (hw->eeprom.type == e1000_eeprom_spi)
 465                 ret_val = e1000_read_eeprom(hw, first_word,
 466                                             last_word - first_word + 1,
 467                                             eeprom_buff);
 468         else {
 469                 for (i = 0; i < last_word - first_word + 1; i++) {
 470                         ret_val = e1000_read_eeprom(hw, first_word + i, 1,
 471                                                     &eeprom_buff[i]);
 472                         if (ret_val)
 473                                 break;
 474                 }
 475         }
 476
 477         /* Device's eeprom is always little-endian, word addressable */
 478         for (i = 0; i < last_word - first_word + 1; i++)
 479                 le16_to_cpus(&eeprom_buff[i]);
 480
 481         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
 482                eeprom->len);
 483         kfree(eeprom_buff);
 484
 485         return ret_val;
 486 }
 487
 488 static int e1000_set_eeprom(struct net_device *netdev,
 489                             struct ethtool_eeprom *eeprom, u8 *bytes)
 490 {
 491         struct e1000_adapter *adapter = netdev_priv(netdev);
 492         struct e1000_hw *hw = &adapter->hw;
 493         u16 *eeprom_buff;
 494         void *ptr;
 495         int max_len, first_word, last_word, ret_val = 0;
 496         u16 i;
 497
 498         if (eeprom->len == 0)
 499                 return -EOPNOTSUPP;
 500
 501         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 502                 return -EFAULT;
 503
 504         max_len = hw->eeprom.word_size * 2;
 505
 506         first_word = eeprom->offset >> 1;
 507         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 508         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 509         if (!eeprom_buff)
 510                 return -ENOMEM;
 511
 512         ptr = (void *)eeprom_buff;
 513
 514         if (eeprom->offset & 1) {
 515                 /* need read/modify/write of first changed EEPROM word
 516                  * only the second byte of the word is being modified
 517                  */
 518                 ret_val = e1000_read_eeprom(hw, first_word, 1,
 519                                             &eeprom_buff[0]);
 520                 ptr++;
 521         }
 522         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 523                 /* need read/modify/write of last changed EEPROM word
 524                  * only the first byte of the word is being modified
 525                  */
 526                 ret_val = e1000_read_eeprom(hw, last_word, 1,
 527                                             &eeprom_buff[last_word - first_word]);
 528         }
 529
 530         /* Device's eeprom is always little-endian, word addressable */
 531         for (i = 0; i < last_word - first_word + 1; i++)
 532                 le16_to_cpus(&eeprom_buff[i]);
 533
 534         memcpy(ptr, bytes, eeprom->len);
 535
 536         for (i = 0; i < last_word - first_word + 1; i++)
 537                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 538
 539         ret_val = e1000_write_eeprom(hw, first_word,
 540                                      last_word - first_word + 1, eeprom_buff);
 541
 542         /* Update the checksum over the first part of the EEPROM if needed */
 543         if ((ret_val == 0) && (first_word <= EEPROM_CHECKSUM_REG))
 544                 e1000_update_eeprom_checksum(hw);
 545
 546         kfree(eeprom_buff);
 547         return ret_val;
 548 }
 549
 550 static void e1000_get_drvinfo(struct net_device *netdev,
 551                               struct ethtool_drvinfo *drvinfo)
 552 {
 553         struct e1000_adapter *adapter = netdev_priv(netdev);
 554
 555         strlcpy(drvinfo->driver,  e1000_driver_name,
 556                 sizeof(drvinfo->driver));
 557         strlcpy(drvinfo->version, e1000_driver_version,
 558                 sizeof(drvinfo->version));
 559
 560         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 561                 sizeof(drvinfo->bus_info));
 562         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 563         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 564 }
 565
 566 static void e1000_get_ringparam(struct net_device *netdev,
 567                                 struct ethtool_ringparam *ring)
 568 {
 569         struct e1000_adapter *adapter = netdev_priv(netdev);
 570         struct e1000_hw *hw = &adapter->hw;
 571         e1000_mac_type mac_type = hw->mac_type;
 572         struct e1000_tx_ring *txdr = adapter->tx_ring;
 573         struct e1000_rx_ring *rxdr = adapter->rx_ring;
 574
 575         ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
 576                 E1000_MAX_82544_RXD;
 577         ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
 578                 E1000_MAX_82544_TXD;
 579         ring->rx_pending = rxdr->count;
 580         ring->tx_pending = txdr->count;
 581 }
 582
 583 static int e1000_set_ringparam(struct net_device *netdev,
 584                                struct ethtool_ringparam *ring)
 585 {
 586         struct e1000_adapter *adapter = netdev_priv(netdev);
 587         struct e1000_hw *hw = &adapter->hw;
 588         e1000_mac_type mac_type = hw->mac_type;
 589         struct e1000_tx_ring *txdr, *tx_old;
 590         struct e1000_rx_ring *rxdr, *rx_old;
 591         int i, err;
 592
 593         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 594                 return -EINVAL;
 595
 596         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 597                 msleep(1);
 598
 599         if (netif_running(adapter->netdev))
 600                 e1000_down(adapter);
 601
 602         tx_old = adapter->tx_ring;
 603         rx_old = adapter->rx_ring;
 604
 605         err = -ENOMEM;
 606         txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring),
 607                        GFP_KERNEL);
 608         if (!txdr)
 609                 goto err_alloc_tx;
 610
 611         rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring),
 612                        GFP_KERNEL);
 613         if (!rxdr)
 614                 goto err_alloc_rx;
 615
 616         adapter->tx_ring = txdr;
 617         adapter->rx_ring = rxdr;
 618
 619         rxdr->count = max(ring->rx_pending, (u32)E1000_MIN_RXD);
 620         rxdr->count = min(rxdr->count, (u32)(mac_type < e1000_82544 ?
 621                           E1000_MAX_RXD : E1000_MAX_82544_RXD));
 622         rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 623         txdr->count = max(ring->tx_pending, (u32)E1000_MIN_TXD);
 624         txdr->count = min(txdr->count, (u32)(mac_type < e1000_82544 ?
 625                           E1000_MAX_TXD : E1000_MAX_82544_TXD));
 626         txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 627
 628         for (i = 0; i < adapter->num_tx_queues; i++)
 629                 txdr[i].count = txdr->count;
 630         for (i = 0; i < adapter->num_rx_queues; i++)
 631                 rxdr[i].count = rxdr->count;
 632
 633         if (netif_running(adapter->netdev)) {
 634                 /* Try to get new resources before deleting old */
 635                 err = e1000_setup_all_rx_resources(adapter);
 636                 if (err)
 637                         goto err_setup_rx;
 638                 err = e1000_setup_all_tx_resources(adapter);
 639                 if (err)
 640                         goto err_setup_tx;
 641
 642                 /* save the new, restore the old in order to free it,
 643                  * then restore the new back again
 644                  */
 645
 646                 adapter->rx_ring = rx_old;
 647                 adapter->tx_ring = tx_old;
 648                 e1000_free_all_rx_resources(adapter);
 649                 e1000_free_all_tx_resources(adapter);
 650                 kfree(tx_old);
 651                 kfree(rx_old);
 652                 adapter->rx_ring = rxdr;
 653                 adapter->tx_ring = txdr;
 654                 err = e1000_up(adapter);
 655                 if (err)
 656                         goto err_setup;
 657         }
 658
 659         clear_bit(__E1000_RESETTING, &adapter->flags);
 660         return 0;
 661 err_setup_tx:
 662         e1000_free_all_rx_resources(adapter);
 663 err_setup_rx:
 664         adapter->rx_ring = rx_old;
 665         adapter->tx_ring = tx_old;
 666         kfree(rxdr);
 667 err_alloc_rx:
 668         kfree(txdr);
 669 err_alloc_tx:
 670         e1000_up(adapter);
 671 err_setup:
 672         clear_bit(__E1000_RESETTING, &adapter->flags);
 673         return err;
 674 }
 675
 676 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg,
 677                              u32 mask, u32 write)
 678 {
 679         struct e1000_hw *hw = &adapter->hw;
 680         static const u32 test[] = {
 681                 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 682         };
 683         u8 __iomem *address = hw->hw_addr + reg;
 684         u32 read;
 685         int i;
 686
 687         for (i = 0; i < ARRAY_SIZE(test); i++) {
 688                 writel(write & test[i], address);
 689                 read = readl(address);
 690                 if (read != (write & test[i] & mask)) {
 691                         e_err(drv, "pattern test reg %04X failed: "
 692                               "got 0x%08X expected 0x%08X\n",
 693                               reg, read, (write & test[i] & mask));
 694                         *data = reg;
 695                         return true;
 696                 }
 697         }
 698         return false;
 699 }
 700
 701 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg,
 702                               u32 mask, u32 write)
 703 {
 704         struct e1000_hw *hw = &adapter->hw;
 705         u8 __iomem *address = hw->hw_addr + reg;
 706         u32 read;
 707
 708         writel(write & mask, address);
 709         read = readl(address);
 710         if ((read & mask) != (write & mask)) {
 711                 e_err(drv, "set/check reg %04X test failed: "
 712                       "got 0x%08X expected 0x%08X\n",
 713                       reg, (read & mask), (write & mask));
 714                 *data = reg;
 715                 return true;
 716         }
 717         return false;
 718 }
 719
 720 #define REG_PATTERN_TEST(reg, mask, write)                           \
 721         do {                                                         \
 722                 if (reg_pattern_test(adapter, data,                  \
 723                              (hw->mac_type >= e1000_82543)   \
 724                              ? E1000_##reg : E1000_82542_##reg,      \
 725                              mask, write))                           \
 726                         return 1;                                    \
 727         } while (0)
 728
 729 #define REG_SET_AND_CHECK(reg, mask, write)                          \
 730         do {                                                         \
 731                 if (reg_set_and_check(adapter, data,                 \
 732                               (hw->mac_type >= e1000_82543)  \
 733                               ? E1000_##reg : E1000_82542_##reg,     \
 734                               mask, write))                          \
 735                         return 1;                                    \
 736         } while (0)
 737
 738 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 739 {
 740         u32 value, before, after;
 741         u32 i, toggle;
 742         struct e1000_hw *hw = &adapter->hw;
 743
 744         /* The status register is Read Only, so a write should fail.
 745          * Some bits that get toggled are ignored.
 746          */
 747
 748         /* there are several bits on newer hardware that are r/w */
 749         toggle = 0xFFFFF833;
 750
 751         before = er32(STATUS);
 752         value = (er32(STATUS) & toggle);
 753         ew32(STATUS, toggle);
 754         after = er32(STATUS) & toggle;
 755         if (value != after) {
 756                 e_err(drv, "failed STATUS register test got: "
 757                       "0x%08X expected: 0x%08X\n", after, value);
 758                 *data = 1;
 759                 return 1;
 760         }
 761         /* restore previous status */
 762         ew32(STATUS, before);
 763
 764         REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 765         REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
 766         REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
 767         REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
 768
 769         REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
 770         REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 771         REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
 772         REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
 773         REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
 774         REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
 775         REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
 776         REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 777         REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 778         REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
 779
 780         REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
 781
 782         before = 0x06DFB3FE;
 783         REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
 784         REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
 785
 786         if (hw->mac_type >= e1000_82543) {
 787                 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
 788                 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 789                 REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
 790                 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 791                 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
 792                 value = E1000_RAR_ENTRIES;
 793                 for (i = 0; i < value; i++) {
 794                         REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2),
 795                                          0x8003FFFF, 0xFFFFFFFF);
 796                 }
 797         } else {
 798                 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
 799                 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
 800                 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
 801                 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
 802         }
 803
 804         value = E1000_MC_TBL_SIZE;
 805         for (i = 0; i < value; i++)
 806                 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
 807
 808         *data = 0;
 809         return 0;
 810 }
 811
 812 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 813 {
 814         struct e1000_hw *hw = &adapter->hw;
 815         u16 temp;
 816         u16 checksum = 0;
 817         u16 i;
 818
 819         *data = 0;
 820         /* Read and add up the contents of the EEPROM */
 821         for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
 822                 if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) {
 823                         *data = 1;
 824                         break;
 825                 }
 826                 checksum += temp;
 827         }
 828
 829         /* If Checksum is not Correct return error else test passed */
 830         if ((checksum != (u16)EEPROM_SUM) && !(*data))
 831                 *data = 2;
 832
 833         return *data;
 834 }
 835
 836 static irqreturn_t e1000_test_intr(int irq, void *data)
 837 {
 838         struct net_device *netdev = (struct net_device *)data;
 839         struct e1000_adapter *adapter = netdev_priv(netdev);
 840         struct e1000_hw *hw = &adapter->hw;
 841
 842         adapter->test_icr |= er32(ICR);
 843
 844         return IRQ_HANDLED;
 845 }
 846
 847 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 848 {
 849         struct net_device *netdev = adapter->netdev;
 850         u32 mask, i = 0;
 851         bool shared_int = true;
 852         u32 irq = adapter->pdev->irq;
 853         struct e1000_hw *hw = &adapter->hw;
 854
 855         *data = 0;
 856
 857         /* NOTE: we don't test MSI interrupts here, yet
 858          * Hook up test interrupt handler just for this test
 859          */
 860         if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 861                          netdev))
 862                 shared_int = false;
 863         else if (request_irq(irq, e1000_test_intr, IRQF_SHARED,
 864                              netdev->name, netdev)) {
 865                 *data = 1;
 866                 return -1;
 867         }
 868         e_info(hw, "testing %s interrupt\n", (shared_int ?
 869                "shared" : "unshared"));
 870
 871         /* Disable all the interrupts */
 872         ew32(IMC, 0xFFFFFFFF);
 873         E1000_WRITE_FLUSH();
 874         msleep(10);
 875
 876         /* Test each interrupt */
 877         for (; i < 10; i++) {
 878                 /* Interrupt to test */
 879                 mask = 1 << i;
 880
 881                 if (!shared_int) {
 882                         /* Disable the interrupt to be reported in
 883                          * the cause register and then force the same
 884                          * interrupt and see if one gets posted.  If
 885                          * an interrupt was posted to the bus, the
 886                          * test failed.
 887                          */
 888                         adapter->test_icr = 0;
 889                         ew32(IMC, mask);
 890                         ew32(ICS, mask);
 891                         E1000_WRITE_FLUSH();
 892                         msleep(10);
 893
 894                         if (adapter->test_icr & mask) {
 895                                 *data = 3;
 896                                 break;
 897                         }
 898                 }
 899
 900                 /* Enable the interrupt to be reported in
 901                  * the cause register and then force the same
 902                  * interrupt and see if one gets posted.  If
 903                  * an interrupt was not posted to the bus, the
 904                  * test failed.
 905                  */
 906                 adapter->test_icr = 0;
 907                 ew32(IMS, mask);
 908                 ew32(ICS, mask);
 909                 E1000_WRITE_FLUSH();
 910                 msleep(10);
 911
 912                 if (!(adapter->test_icr & mask)) {
 913                         *data = 4;
 914                         break;
 915                 }
 916
 917                 if (!shared_int) {
 918                         /* Disable the other interrupts to be reported in
 919                          * the cause register and then force the other
 920                          * interrupts and see if any get posted.  If
 921                          * an interrupt was posted to the bus, the
 922                          * test failed.
 923                          */
 924                         adapter->test_icr = 0;
 925                         ew32(IMC, ~mask & 0x00007FFF);
 926                         ew32(ICS, ~mask & 0x00007FFF);
 927                         E1000_WRITE_FLUSH();
 928                         msleep(10);
 929
 930                         if (adapter->test_icr) {
 931                                 *data = 5;
 932                                 break;
 933                         }
 934                 }
 935         }
 936
 937         /* Disable all the interrupts */
 938         ew32(IMC, 0xFFFFFFFF);
 939         E1000_WRITE_FLUSH();
 940         msleep(10);
 941
 942         /* Unhook test interrupt handler */
 943         free_irq(irq, netdev);
 944
 945         return *data;
 946 }
 947
 948 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
 949 {
 950         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
 951         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
 952         struct pci_dev *pdev = adapter->pdev;
 953         int i;
 954
 955         if (txdr->desc && txdr->buffer_info) {
 956                 for (i = 0; i < txdr->count; i++) {
 957                         if (txdr->buffer_info[i].dma)
 958                                 dma_unmap_single(&pdev->dev,
 959                                                  txdr->buffer_info[i].dma,
 960                                                  txdr->buffer_info[i].length,
 961                                                  DMA_TO_DEVICE);
 962                         if (txdr->buffer_info[i].skb)
 963                                 dev_kfree_skb(txdr->buffer_info[i].skb);
 964                 }
 965         }
 966
 967         if (rxdr->desc && rxdr->buffer_info) {
 968                 for (i = 0; i < rxdr->count; i++) {
 969                         if (rxdr->buffer_info[i].dma)
 970                                 dma_unmap_single(&pdev->dev,
 971                                                  rxdr->buffer_info[i].dma,
 972                                                  E1000_RXBUFFER_2048,
 973                                                  DMA_FROM_DEVICE);
 974                         kfree(rxdr->buffer_info[i].rxbuf.data);
 975                 }
 976         }
 977
 978         if (txdr->desc) {
 979                 dma_free_coherent(&pdev->dev, txdr->size, txdr->desc,
 980                                   txdr->dma);
 981                 txdr->desc = NULL;
 982         }
 983         if (rxdr->desc) {
 984                 dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc,
 985                                   rxdr->dma);
 986                 rxdr->desc = NULL;
 987         }
 988
 989         kfree(txdr->buffer_info);
 990         txdr->buffer_info = NULL;
 991         kfree(rxdr->buffer_info);
 992         rxdr->buffer_info = NULL;
 993 }
 994
 995 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
 996 {
 997         struct e1000_hw *hw = &adapter->hw;
 998         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
 999         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1000         struct pci_dev *pdev = adapter->pdev;
1001         u32 rctl;
1002         int i, ret_val;
1003
1004         /* Setup Tx descriptor ring and Tx buffers */
1005
1006         if (!txdr->count)
1007                 txdr->count = E1000_DEFAULT_TXD;
1008
1009         txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_tx_buffer),
1010                                     GFP_KERNEL);
1011         if (!txdr->buffer_info) {
1012                 ret_val = 1;
1013                 goto err_nomem;
1014         }
1015
1016         txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
1017         txdr->size = ALIGN(txdr->size, 4096);
1018         txdr->desc = dma_zalloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
1019                                          GFP_KERNEL);
1020         if (!txdr->desc) {
1021                 ret_val = 2;
1022                 goto err_nomem;
1023         }
1024         txdr->next_to_use = txdr->next_to_clean = 0;
1025
1026         ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF));
1027         ew32(TDBAH, ((u64)txdr->dma >> 32));
1028         ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc));
1029         ew32(TDH, 0);
1030         ew32(TDT, 0);
1031         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN |
1032              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1033              E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1034
1035         for (i = 0; i < txdr->count; i++) {
1036                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
1037                 struct sk_buff *skb;
1038                 unsigned int size = 1024;
1039
1040                 skb = alloc_skb(size, GFP_KERNEL);
1041                 if (!skb) {
1042                         ret_val = 3;
1043                         goto err_nomem;
1044                 }
1045                 skb_put(skb, size);
1046                 txdr->buffer_info[i].skb = skb;
1047                 txdr->buffer_info[i].length = skb->len;
1048                 txdr->buffer_info[i].dma =
1049                         dma_map_single(&pdev->dev, skb->data, skb->len,
1050                                        DMA_TO_DEVICE);
1051                 if (dma_mapping_error(&pdev->dev, txdr->buffer_info[i].dma)) {
1052                         ret_val = 4;
1053                         goto err_nomem;
1054                 }
1055                 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);
1056                 tx_desc->lower.data = cpu_to_le32(skb->len);
1057                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1058                                                    E1000_TXD_CMD_IFCS |
1059                                                    E1000_TXD_CMD_RPS);
1060                 tx_desc->upper.data = 0;
1061         }
1062
1063         /* Setup Rx descriptor ring and Rx buffers */
1064
1065         if (!rxdr->count)
1066                 rxdr->count = E1000_DEFAULT_RXD;
1067
1068         rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_rx_buffer),
1069                                     GFP_KERNEL);
1070         if (!rxdr->buffer_info) {
1071                 ret_val = 5;
1072                 goto err_nomem;
1073         }
1074
1075         rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
1076         rxdr->desc = dma_zalloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
1077                                          GFP_KERNEL);
1078         if (!rxdr->desc) {
1079                 ret_val = 6;
1080                 goto err_nomem;
1081         }
1082         rxdr->next_to_use = rxdr->next_to_clean = 0;
1083
1084         rctl = er32(RCTL);
1085         ew32(RCTL, rctl & ~E1000_RCTL_EN);
1086         ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF));
1087         ew32(RDBAH, ((u64)rxdr->dma >> 32));
1088         ew32(RDLEN, rxdr->size);
1089         ew32(RDH, 0);
1090         ew32(RDT, 0);
1091         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1092                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1093                 (hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
1094         ew32(RCTL, rctl);
1095
1096         for (i = 0; i < rxdr->count; i++) {
1097                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
1098                 u8 *buf;
1099
1100                 buf = kzalloc(E1000_RXBUFFER_2048 + NET_SKB_PAD + NET_IP_ALIGN,
1101                               GFP_KERNEL);
1102                 if (!buf) {
1103                         ret_val = 7;
1104                         goto err_nomem;
1105                 }
1106                 rxdr->buffer_info[i].rxbuf.data = buf;
1107
1108                 rxdr->buffer_info[i].dma =
1109                         dma_map_single(&pdev->dev,
1110                                        buf + NET_SKB_PAD + NET_IP_ALIGN,
1111                                        E1000_RXBUFFER_2048, DMA_FROM_DEVICE);
1112                 if (dma_mapping_error(&pdev->dev, rxdr->buffer_info[i].dma)) {
1113                         ret_val = 8;
1114                         goto err_nomem;
1115                 }
1116                 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);
1117         }
1118
1119         return 0;
1120
1121 err_nomem:
1122         e1000_free_desc_rings(adapter);
1123         return ret_val;
1124 }
1125
1126 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1127 {
1128         struct e1000_hw *hw = &adapter->hw;
1129
1130         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1131         e1000_write_phy_reg(hw, 29, 0x001F);
1132         e1000_write_phy_reg(hw, 30, 0x8FFC);
1133         e1000_write_phy_reg(hw, 29, 0x001A);
1134         e1000_write_phy_reg(hw, 30, 0x8FF0);
1135 }
1136
1137 static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
1138 {
1139         struct e1000_hw *hw = &adapter->hw;
1140         u16 phy_reg;
1141
1142         /* Because we reset the PHY above, we need to re-force TX_CLK in the
1143          * Extended PHY Specific Control Register to 25MHz clock.  This
1144          * value defaults back to a 2.5MHz clock when the PHY is reset.
1145          */
1146         e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1147         phy_reg |= M88E1000_EPSCR_TX_CLK_25;
1148         e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
1149
1150         /* In addition, because of the s/w reset above, we need to enable
1151          * CRS on TX.  This must be set for both full and half duplex
1152          * operation.
1153          */
1154         e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1155         phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
1156         e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
1157 }
1158
1159 static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
1160 {
1161         struct e1000_hw *hw = &adapter->hw;
1162         u32 ctrl_reg;
1163         u16 phy_reg;
1164
1165         /* Setup the Device Control Register for PHY loopback test. */
1166
1167         ctrl_reg = er32(CTRL);
1168         ctrl_reg |= (E1000_CTRL_ILOS |          /* Invert Loss-Of-Signal */
1169                      E1000_CTRL_FRCSPD |        /* Set the Force Speed Bit */
1170                      E1000_CTRL_FRCDPX |        /* Set the Force Duplex Bit */
1171                      E1000_CTRL_SPD_1000 |      /* Force Speed to 1000 */
1172                      E1000_CTRL_FD);            /* Force Duplex to FULL */
1173
1174         ew32(CTRL, ctrl_reg);
1175
1176         /* Read the PHY Specific Control Register (0x10) */
1177         e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1178
1179         /* Clear Auto-Crossover bits in PHY Specific Control Register
1180          * (bits 6:5).
1181          */
1182         phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
1183         e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
1184
1185         /* Perform software reset on the PHY */
1186         e1000_phy_reset(hw);
1187
1188         /* Have to setup TX_CLK and TX_CRS after software reset */
1189         e1000_phy_reset_clk_and_crs(adapter);
1190
1191         e1000_write_phy_reg(hw, PHY_CTRL, 0x8100);
1192
1193         /* Wait for reset to complete. */
1194         udelay(500);
1195
1196         /* Have to setup TX_CLK and TX_CRS after software reset */
1197         e1000_phy_reset_clk_and_crs(adapter);
1198
1199         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1200         e1000_phy_disable_receiver(adapter);
1201
1202         /* Set the loopback bit in the PHY control register. */
1203         e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1204         phy_reg |= MII_CR_LOOPBACK;
1205         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1206
1207         /* Setup TX_CLK and TX_CRS one more time. */
1208         e1000_phy_reset_clk_and_crs(adapter);
1209
1210         /* Check Phy Configuration */
1211         e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1212         if (phy_reg != 0x4100)
1213                 return 9;
1214
1215         e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1216         if (phy_reg != 0x0070)
1217                 return 10;
1218
1219         e1000_read_phy_reg(hw, 29, &phy_reg);
1220         if (phy_reg != 0x001A)
1221                 return 11;
1222
1223         return 0;
1224 }
1225
1226 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1227 {
1228         struct e1000_hw *hw = &adapter->hw;
1229         u32 ctrl_reg = 0;
1230         u32 stat_reg = 0;
1231
1232         hw->autoneg = false;
1233
1234         if (hw->phy_type == e1000_phy_m88) {
1235                 /* Auto-MDI/MDIX Off */
1236                 e1000_write_phy_reg(hw,
1237                                     M88E1000_PHY_SPEC_CTRL, 0x0808);
1238                 /* reset to update Auto-MDI/MDIX */
1239                 e1000_write_phy_reg(hw, PHY_CTRL, 0x9140);
1240                 /* autoneg off */
1241                 e1000_write_phy_reg(hw, PHY_CTRL, 0x8140);
1242         }
1243
1244         ctrl_reg = er32(CTRL);
1245
1246         /* force 1000, set loopback */
1247         e1000_write_phy_reg(hw, PHY_CTRL, 0x4140);
1248
1249         /* Now set up the MAC to the same speed/duplex as the PHY. */
1250         ctrl_reg = er32(CTRL);
1251         ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1252         ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1253                         E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1254                         E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1255                         E1000_CTRL_FD); /* Force Duplex to FULL */
1256
1257         if (hw->media_type == e1000_media_type_copper &&
1258             hw->phy_type == e1000_phy_m88)
1259                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1260         else {
1261                 /* Set the ILOS bit on the fiber Nic is half
1262                  * duplex link is detected.
1263                  */
1264                 stat_reg = er32(STATUS);
1265                 if ((stat_reg & E1000_STATUS_FD) == 0)
1266                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1267         }
1268
1269         ew32(CTRL, ctrl_reg);
1270
1271         /* Disable the receiver on the PHY so when a cable is plugged in, the
1272          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1273          */
1274         if (hw->phy_type == e1000_phy_m88)
1275                 e1000_phy_disable_receiver(adapter);
1276
1277         udelay(500);
1278
1279         return 0;
1280 }
1281
1282 static int e1000_set_phy_loopback(struct e1000_adapter *adapter)
1283 {
1284         struct e1000_hw *hw = &adapter->hw;
1285         u16 phy_reg = 0;
1286         u16 count = 0;
1287
1288         switch (hw->mac_type) {
1289         case e1000_82543:
1290                 if (hw->media_type == e1000_media_type_copper) {
1291                         /* Attempt to setup Loopback mode on Non-integrated PHY.
1292                          * Some PHY registers get corrupted at random, so
1293                          * attempt this 10 times.
1294                          */
1295                         while (e1000_nonintegrated_phy_loopback(adapter) &&
1296                                count++ < 10);
1297                         if (count < 11)
1298                                 return 0;
1299                 }
1300                 break;
1301
1302         case e1000_82544:
1303         case e1000_82540:
1304         case e1000_82545:
1305         case e1000_82545_rev_3:
1306         case e1000_82546:
1307         case e1000_82546_rev_3:
1308         case e1000_82541:
1309         case e1000_82541_rev_2:
1310         case e1000_82547:
1311         case e1000_82547_rev_2:
1312                 return e1000_integrated_phy_loopback(adapter);
1313         default:
1314                 /* Default PHY loopback work is to read the MII
1315                  * control register and assert bit 14 (loopback mode).
1316                  */
1317                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1318                 phy_reg |= MII_CR_LOOPBACK;
1319                 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1320                 return 0;
1321         }
1322
1323         return 8;
1324 }
1325
1326 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1327 {
1328         struct e1000_hw *hw = &adapter->hw;
1329         u32 rctl;
1330
1331         if (hw->media_type == e1000_media_type_fiber ||
1332             hw->media_type == e1000_media_type_internal_serdes) {
1333                 switch (hw->mac_type) {
1334                 case e1000_82545:
1335                 case e1000_82546:
1336                 case e1000_82545_rev_3:
1337                 case e1000_82546_rev_3:
1338                         return e1000_set_phy_loopback(adapter);
1339                 default:
1340                         rctl = er32(RCTL);
1341                         rctl |= E1000_RCTL_LBM_TCVR;
1342                         ew32(RCTL, rctl);
1343                         return 0;
1344                 }
1345         } else if (hw->media_type == e1000_media_type_copper) {
1346                 return e1000_set_phy_loopback(adapter);
1347         }
1348
1349         return 7;
1350 }
1351
1352 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1353 {
1354         struct e1000_hw *hw = &adapter->hw;
1355         u32 rctl;
1356         u16 phy_reg;
1357
1358         rctl = er32(RCTL);
1359         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1360         ew32(RCTL, rctl);
1361
1362         switch (hw->mac_type) {
1363         case e1000_82545:
1364         case e1000_82546:
1365         case e1000_82545_rev_3:
1366         case e1000_82546_rev_3:
1367         default:
1368                 hw->autoneg = true;
1369                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1370                 if (phy_reg & MII_CR_LOOPBACK) {
1371                         phy_reg &= ~MII_CR_LOOPBACK;
1372                         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1373                         e1000_phy_reset(hw);
1374                 }
1375                 break;
1376         }
1377 }
1378
1379 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1380                                       unsigned int frame_size)
1381 {
1382         memset(skb->data, 0xFF, frame_size);
1383         frame_size &= ~1;
1384         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1385         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1386         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1387 }
1388
1389 static int e1000_check_lbtest_frame(const unsigned char *data,
1390                                     unsigned int frame_size)
1391 {
1392         frame_size &= ~1;
1393         if (*(data + 3) == 0xFF) {
1394                 if ((*(data + frame_size / 2 + 10) == 0xBE) &&
1395                     (*(data + frame_size / 2 + 12) == 0xAF)) {
1396                         return 0;
1397                 }
1398         }
1399         return 13;
1400 }
1401
1402 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1403 {
1404         struct e1000_hw *hw = &adapter->hw;
1405         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1406         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1407         struct pci_dev *pdev = adapter->pdev;
1408         int i, j, k, l, lc, good_cnt, ret_val = 0;
1409         unsigned long time;
1410
1411         ew32(RDT, rxdr->count - 1);
1412
1413         /* Calculate the loop count based on the largest descriptor ring
1414          * The idea is to wrap the largest ring a number of times using 64
1415          * send/receive pairs during each loop
1416          */
1417
1418         if (rxdr->count <= txdr->count)
1419                 lc = ((txdr->count / 64) * 2) + 1;
1420         else
1421                 lc = ((rxdr->count / 64) * 2) + 1;
1422
1423         k = l = 0;
1424         for (j = 0; j <= lc; j++) { /* loop count loop */
1425                 for (i = 0; i < 64; i++) { /* send the packets */
1426                         e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
1427                                                   1024);
1428                         dma_sync_single_for_device(&pdev->dev,
1429                                                    txdr->buffer_info[k].dma,
1430                                                    txdr->buffer_info[k].length,
1431                                                    DMA_TO_DEVICE);
1432                         if (unlikely(++k == txdr->count))
1433                                 k = 0;
1434                 }
1435                 ew32(TDT, k);
1436                 E1000_WRITE_FLUSH();
1437                 msleep(200);
1438                 time = jiffies; /* set the start time for the receive */
1439                 good_cnt = 0;
1440                 do { /* receive the sent packets */
1441                         dma_sync_single_for_cpu(&pdev->dev,
1442                                                 rxdr->buffer_info[l].dma,
1443                                                 E1000_RXBUFFER_2048,
1444                                                 DMA_FROM_DEVICE);
1445
1446                         ret_val = e1000_check_lbtest_frame(
1447                                         rxdr->buffer_info[l].rxbuf.data +
1448                                         NET_SKB_PAD + NET_IP_ALIGN,
1449                                         1024);
1450                         if (!ret_val)
1451                                 good_cnt++;
1452                         if (unlikely(++l == rxdr->count))
1453                                 l = 0;
1454                         /* time + 20 msecs (200 msecs on 2.4) is more than
1455                          * enough time to complete the receives, if it's
1456                          * exceeded, break and error off
1457                          */
1458                 } while (good_cnt < 64 && time_after(time + 20, jiffies));
1459
1460                 if (good_cnt != 64) {
1461                         ret_val = 13; /* ret_val is the same as mis-compare */
1462                         break;
1463                 }
1464                 if (time_after_eq(jiffies, time + 2)) {
1465                         ret_val = 14; /* error code for time out error */
1466                         break;
1467                 }
1468         } /* end loop count loop */
1469         return ret_val;
1470 }
1471
1472 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1473 {
1474         *data = e1000_setup_desc_rings(adapter);
1475         if (*data)
1476                 goto out;
1477         *data = e1000_setup_loopback_test(adapter);
1478         if (*data)
1479                 goto err_loopback;
1480         *data = e1000_run_loopback_test(adapter);
1481         e1000_loopback_cleanup(adapter);
1482
1483 err_loopback:
1484         e1000_free_desc_rings(adapter);
1485 out:
1486         return *data;
1487 }
1488
1489 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1490 {
1491         struct e1000_hw *hw = &adapter->hw;
1492         *data = 0;
1493         if (hw->media_type == e1000_media_type_internal_serdes) {
1494                 int i = 0;
1495
1496                 hw->serdes_has_link = false;
1497
1498                 /* On some blade server designs, link establishment
1499                  * could take as long as 2-3 minutes
1500                  */
1501                 do {
1502                         e1000_check_for_link(hw);
1503                         if (hw->serdes_has_link)
1504                                 return *data;
1505                         msleep(20);
1506                 } while (i++ < 3750);
1507
1508                 *data = 1;
1509         } else {
1510                 e1000_check_for_link(hw);
1511                 if (hw->autoneg)  /* if auto_neg is set wait for it */
1512                         msleep(4000);
1513
1514                 if (!(er32(STATUS) & E1000_STATUS_LU))
1515                         *data = 1;
1516         }
1517         return *data;
1518 }
1519
1520 static int e1000_get_sset_count(struct net_device *netdev, int sset)
1521 {
1522         switch (sset) {
1523         case ETH_SS_TEST:
1524                 return E1000_TEST_LEN;
1525         case ETH_SS_STATS:
1526                 return E1000_STATS_LEN;
1527         default:
1528                 return -EOPNOTSUPP;
1529         }
1530 }
1531
1532 static void e1000_diag_test(struct net_device *netdev,
1533                             struct ethtool_test *eth_test, u64 *data)
1534 {
1535         struct e1000_adapter *adapter = netdev_priv(netdev);
1536         struct e1000_hw *hw = &adapter->hw;
1537         bool if_running = netif_running(netdev);
1538
1539         set_bit(__E1000_TESTING, &adapter->flags);
1540         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1541                 /* Offline tests */
1542
1543                 /* save speed, duplex, autoneg settings */
1544                 u16 autoneg_advertised = hw->autoneg_advertised;
1545                 u8 forced_speed_duplex = hw->forced_speed_duplex;
1546                 u8 autoneg = hw->autoneg;
1547
1548                 e_info(hw, "offline testing starting\n");
1549
1550                 /* Link test performed before hardware reset so autoneg doesn't
1551                  * interfere with test result
1552                  */
1553                 if (e1000_link_test(adapter, &data[4]))
1554                         eth_test->flags |= ETH_TEST_FL_FAILED;
1555
1556                 if (if_running)
1557                         /* indicate we're in test mode */
1558                         dev_close(netdev);
1559                 else
1560                         e1000_reset(adapter);
1561
1562                 if (e1000_reg_test(adapter, &data[0]))
1563                         eth_test->flags |= ETH_TEST_FL_FAILED;
1564
1565                 e1000_reset(adapter);
1566                 if (e1000_eeprom_test(adapter, &data[1]))
1567                         eth_test->flags |= ETH_TEST_FL_FAILED;
1568
1569                 e1000_reset(adapter);
1570                 if (e1000_intr_test(adapter, &data[2]))
1571                         eth_test->flags |= ETH_TEST_FL_FAILED;
1572
1573                 e1000_reset(adapter);
1574                 /* make sure the phy is powered up */
1575                 e1000_power_up_phy(adapter);
1576                 if (e1000_loopback_test(adapter, &data[3]))
1577                         eth_test->flags |= ETH_TEST_FL_FAILED;
1578
1579                 /* restore speed, duplex, autoneg settings */
1580                 hw->autoneg_advertised = autoneg_advertised;
1581                 hw->forced_speed_duplex = forced_speed_duplex;
1582                 hw->autoneg = autoneg;
1583
1584                 e1000_reset(adapter);
1585                 clear_bit(__E1000_TESTING, &adapter->flags);
1586                 if (if_running)
1587                         dev_open(netdev);
1588         } else {
1589                 e_info(hw, "online testing starting\n");
1590                 /* Online tests */
1591                 if (e1000_link_test(adapter, &data[4]))
1592                         eth_test->flags |= ETH_TEST_FL_FAILED;
1593
1594                 /* Online tests aren't run; pass by default */
1595                 data[0] = 0;
1596                 data[1] = 0;
1597                 data[2] = 0;
1598                 data[3] = 0;
1599
1600                 clear_bit(__E1000_TESTING, &adapter->flags);
1601         }
1602         msleep_interruptible(4 * 1000);
1603 }
1604
1605 static int e1000_wol_exclusion(struct e1000_adapter *adapter,
1606                                struct ethtool_wolinfo *wol)
1607 {
1608         struct e1000_hw *hw = &adapter->hw;
1609         int retval = 1; /* fail by default */
1610
1611         switch (hw->device_id) {
1612         case E1000_DEV_ID_82542:
1613         case E1000_DEV_ID_82543GC_FIBER:
1614         case E1000_DEV_ID_82543GC_COPPER:
1615         case E1000_DEV_ID_82544EI_FIBER:
1616         case E1000_DEV_ID_82546EB_QUAD_COPPER:
1617         case E1000_DEV_ID_82545EM_FIBER:
1618         case E1000_DEV_ID_82545EM_COPPER:
1619         case E1000_DEV_ID_82546GB_QUAD_COPPER:
1620         case E1000_DEV_ID_82546GB_PCIE:
1621                 /* these don't support WoL at all */
1622                 wol->supported = 0;
1623                 break;
1624         case E1000_DEV_ID_82546EB_FIBER:
1625         case E1000_DEV_ID_82546GB_FIBER:
1626                 /* Wake events not supported on port B */
1627                 if (er32(STATUS) & E1000_STATUS_FUNC_1) {
1628                         wol->supported = 0;
1629                         break;
1630                 }
1631                 /* return success for non excluded adapter ports */
1632                 retval = 0;
1633                 break;
1634         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1635                 /* quad port adapters only support WoL on port A */
1636                 if (!adapter->quad_port_a) {
1637                         wol->supported = 0;
1638                         break;
1639                 }
1640                 /* return success for non excluded adapter ports */
1641                 retval = 0;
1642                 break;
1643         default:
1644                 /* dual port cards only support WoL on port A from now on
1645                  * unless it was enabled in the eeprom for port B
1646                  * so exclude FUNC_1 ports from having WoL enabled
1647                  */
1648                 if (er32(STATUS) & E1000_STATUS_FUNC_1 &&
1649                     !adapter->eeprom_wol) {
1650                         wol->supported = 0;
1651                         break;
1652                 }
1653
1654                 retval = 0;
1655         }
1656
1657         return retval;
1658 }
1659
1660 static void e1000_get_wol(struct net_device *netdev,
1661                           struct ethtool_wolinfo *wol)
1662 {
1663         struct e1000_adapter *adapter = netdev_priv(netdev);
1664         struct e1000_hw *hw = &adapter->hw;
1665
1666         wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
1667         wol->wolopts = 0;
1668
1669         /* this function will set ->supported = 0 and return 1 if wol is not
1670          * supported by this hardware
1671          */
1672         if (e1000_wol_exclusion(adapter, wol) ||
1673             !device_can_wakeup(&adapter->pdev->dev))
1674                 return;
1675
1676         /* apply any specific unsupported masks here */
1677         switch (hw->device_id) {
1678         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1679                 /* KSP3 does not support UCAST wake-ups */
1680                 wol->supported &= ~WAKE_UCAST;
1681
1682                 if (adapter->wol & E1000_WUFC_EX)
1683                         e_err(drv, "Interface does not support directed "
1684                               "(unicast) frame wake-up packets\n");
1685                 break;
1686         default:
1687                 break;
1688         }
1689
1690         if (adapter->wol & E1000_WUFC_EX)
1691                 wol->wolopts |= WAKE_UCAST;
1692         if (adapter->wol & E1000_WUFC_MC)
1693                 wol->wolopts |= WAKE_MCAST;
1694         if (adapter->wol & E1000_WUFC_BC)
1695                 wol->wolopts |= WAKE_BCAST;
1696         if (adapter->wol & E1000_WUFC_MAG)
1697                 wol->wolopts |= WAKE_MAGIC;
1698 }
1699
1700 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1701 {
1702         struct e1000_adapter *adapter = netdev_priv(netdev);
1703         struct e1000_hw *hw = &adapter->hw;
1704
1705         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
1706                 return -EOPNOTSUPP;
1707
1708         if (e1000_wol_exclusion(adapter, wol) ||
1709             !device_can_wakeup(&adapter->pdev->dev))
1710                 return wol->wolopts ? -EOPNOTSUPP : 0;
1711
1712         switch (hw->device_id) {
1713         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1714                 if (wol->wolopts & WAKE_UCAST) {
1715                         e_err(drv, "Interface does not support directed "
1716                               "(unicast) frame wake-up packets\n");
1717                         return -EOPNOTSUPP;
1718                 }
1719                 break;
1720         default:
1721                 break;
1722         }
1723
1724         /* these settings will always override what we currently have */
1725         adapter->wol = 0;
1726
1727         if (wol->wolopts & WAKE_UCAST)
1728                 adapter->wol |= E1000_WUFC_EX;
1729         if (wol->wolopts & WAKE_MCAST)
1730                 adapter->wol |= E1000_WUFC_MC;
1731         if (wol->wolopts & WAKE_BCAST)
1732                 adapter->wol |= E1000_WUFC_BC;
1733         if (wol->wolopts & WAKE_MAGIC)
1734                 adapter->wol |= E1000_WUFC_MAG;
1735
1736         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1737
1738         return 0;
1739 }
1740
1741 static int e1000_set_phys_id(struct net_device *netdev,
1742                              enum ethtool_phys_id_state state)
1743 {
1744         struct e1000_adapter *adapter = netdev_priv(netdev);
1745         struct e1000_hw *hw = &adapter->hw;
1746
1747         switch (state) {
1748         case ETHTOOL_ID_ACTIVE:
1749                 e1000_setup_led(hw);
1750                 return 2;
1751
1752         case ETHTOOL_ID_ON:
1753                 e1000_led_on(hw);
1754                 break;
1755
1756         case ETHTOOL_ID_OFF:
1757                 e1000_led_off(hw);
1758                 break;
1759
1760         case ETHTOOL_ID_INACTIVE:
1761                 e1000_cleanup_led(hw);
1762         }
1763
1764         return 0;
1765 }
1766
1767 static int e1000_get_coalesce(struct net_device *netdev,
1768                               struct ethtool_coalesce *ec)
1769 {
1770         struct e1000_adapter *adapter = netdev_priv(netdev);
1771
1772         if (adapter->hw.mac_type < e1000_82545)
1773                 return -EOPNOTSUPP;
1774
1775         if (adapter->itr_setting <= 4)
1776                 ec->rx_coalesce_usecs = adapter->itr_setting;
1777         else
1778                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1779
1780         return 0;
1781 }
1782
1783 static int e1000_set_coalesce(struct net_device *netdev,
1784                               struct ethtool_coalesce *ec)
1785 {
1786         struct e1000_adapter *adapter = netdev_priv(netdev);
1787         struct e1000_hw *hw = &adapter->hw;
1788
1789         if (hw->mac_type < e1000_82545)
1790                 return -EOPNOTSUPP;
1791
1792         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1793             ((ec->rx_coalesce_usecs > 4) &&
1794              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1795             (ec->rx_coalesce_usecs == 2))
1796                 return -EINVAL;
1797
1798         if (ec->rx_coalesce_usecs == 4) {
1799                 adapter->itr = adapter->itr_setting = 4;
1800         } else if (ec->rx_coalesce_usecs <= 3) {
1801                 adapter->itr = 20000;
1802                 adapter->itr_setting = ec->rx_coalesce_usecs;
1803         } else {
1804                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1805                 adapter->itr_setting = adapter->itr & ~3;
1806         }
1807
1808         if (adapter->itr_setting != 0)
1809                 ew32(ITR, 1000000000 / (adapter->itr * 256));
1810         else
1811                 ew32(ITR, 0);
1812
1813         return 0;
1814 }
1815
1816 static int e1000_nway_reset(struct net_device *netdev)
1817 {
1818         struct e1000_adapter *adapter = netdev_priv(netdev);
1819
1820         if (netif_running(netdev))
1821                 e1000_reinit_locked(adapter);
1822         return 0;
1823 }
1824
1825 static void e1000_get_ethtool_stats(struct net_device *netdev,
1826                                     struct ethtool_stats *stats, u64 *data)
1827 {
1828         struct e1000_adapter *adapter = netdev_priv(netdev);
1829         int i;
1830         char *p = NULL;
1831         const struct e1000_stats *stat = e1000_gstrings_stats;
1832
1833         e1000_update_stats(adapter);
1834         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1835                 switch (stat->type) {
1836                 case NETDEV_STATS:
1837                         p = (char *)netdev + stat->stat_offset;
1838                         break;
1839                 case E1000_STATS:
1840                         p = (char *)adapter + stat->stat_offset;
1841                         break;
1842                 default:
1843                         WARN_ONCE(1, "Invalid E1000 stat type: %u index %d\n",
1844                                   stat->type, i);
1845                         break;
1846                 }
1847
1848                 if (stat->sizeof_stat == sizeof(u64))
1849                         data[i] = *(u64 *)p;
1850                 else
1851                         data[i] = *(u32 *)p;
1852
1853                 stat++;
1854         }
1855 /* BUG_ON(i != E1000_STATS_LEN); */
1856 }
1857
1858 static void e1000_get_strings(struct net_device *netdev, u32 stringset,
1859                               u8 *data)
1860 {
1861         u8 *p = data;
1862         int i;
1863
1864         switch (stringset) {
1865         case ETH_SS_TEST:
1866                 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test));
1867                 break;
1868         case ETH_SS_STATS:
1869                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1870                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1871                                ETH_GSTRING_LEN);
1872                         p += ETH_GSTRING_LEN;
1873                 }
1874                 /* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
1875                 break;
1876         }
1877 }
1878
1879 static const struct ethtool_ops e1000_ethtool_ops = {
1880         .get_settings           = e1000_get_settings,
1881         .set_settings           = e1000_set_settings,
1882         .get_drvinfo            = e1000_get_drvinfo,
1883         .get_regs_len           = e1000_get_regs_len,
1884         .get_regs               = e1000_get_regs,
1885         .get_wol                = e1000_get_wol,
1886         .set_wol                = e1000_set_wol,
1887         .get_msglevel           = e1000_get_msglevel,
1888         .set_msglevel           = e1000_set_msglevel,
1889         .nway_reset             = e1000_nway_reset,
1890         .get_link               = e1000_get_link,
1891         .get_eeprom_len         = e1000_get_eeprom_len,
1892         .get_eeprom             = e1000_get_eeprom,
1893         .set_eeprom             = e1000_set_eeprom,
1894         .get_ringparam          = e1000_get_ringparam,
1895         .set_ringparam          = e1000_set_ringparam,
1896         .get_pauseparam         = e1000_get_pauseparam,
1897         .set_pauseparam         = e1000_set_pauseparam,
1898         .self_test              = e1000_diag_test,
1899         .get_strings            = e1000_get_strings,
1900         .set_phys_id            = e1000_set_phys_id,
1901         .get_ethtool_stats      = e1000_get_ethtool_stats,
1902         .get_sset_count         = e1000_get_sset_count,
1903         .get_coalesce           = e1000_get_coalesce,
1904         .set_coalesce           = e1000_set_coalesce,
1905         .get_ts_info            = ethtool_op_get_ts_info,
1906 };
1907
1908 void e1000_set_ethtool_ops(struct net_device *netdev)
1909 {
1910         netdev->ethtool_ops = &e1000_ethtool_ops;
1911 }