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

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2006 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   Linux NICS <linux.nics@intel.com>
  24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27 *******************************************************************************/
  28
  29 /* ethtool support for e1000 */
  30
  31 #include "e1000.h"
  32 #include <asm/uaccess.h>
  33
  34 enum {NETDEV_STATS, E1000_STATS};
  35
  36 struct e1000_stats {
  37         char stat_string[ETH_GSTRING_LEN];
  38         int type;
  39         int sizeof_stat;
  40         int stat_offset;
  41 };
  42
  43 #define E1000_STAT(m)           E1000_STATS, \
  44                                 sizeof(((struct e1000_adapter *)0)->m), \
  45                                 offsetof(struct e1000_adapter, m)
  46 #define E1000_NETDEV_STAT(m)    NETDEV_STATS, \
  47                                 sizeof(((struct net_device *)0)->m), \
  48                                 offsetof(struct net_device, m)
  49
  50 static const struct e1000_stats e1000_gstrings_stats[] = {
  51         { "rx_packets", E1000_STAT(stats.gprc) },
  52         { "tx_packets", E1000_STAT(stats.gptc) },
  53         { "rx_bytes", E1000_STAT(stats.gorcl) },
  54         { "tx_bytes", E1000_STAT(stats.gotcl) },
  55         { "rx_broadcast", E1000_STAT(stats.bprc) },
  56         { "tx_broadcast", E1000_STAT(stats.bptc) },
  57         { "rx_multicast", E1000_STAT(stats.mprc) },
  58         { "tx_multicast", E1000_STAT(stats.mptc) },
  59         { "rx_errors", E1000_STAT(stats.rxerrc) },
  60         { "tx_errors", E1000_STAT(stats.txerrc) },
  61         { "tx_dropped", E1000_NETDEV_STAT(stats.tx_dropped) },
  62         { "multicast", E1000_STAT(stats.mprc) },
  63         { "collisions", E1000_STAT(stats.colc) },
  64         { "rx_length_errors", E1000_STAT(stats.rlerrc) },
  65         { "rx_over_errors", E1000_NETDEV_STAT(stats.rx_over_errors) },
  66         { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
  67         { "rx_frame_errors", E1000_NETDEV_STAT(stats.rx_frame_errors) },
  68         { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
  69         { "rx_missed_errors", E1000_STAT(stats.mpc) },
  70         { "tx_aborted_errors", E1000_STAT(stats.ecol) },
  71         { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
  72         { "tx_fifo_errors", E1000_NETDEV_STAT(stats.tx_fifo_errors) },
  73         { "tx_heartbeat_errors", E1000_NETDEV_STAT(stats.tx_heartbeat_errors) },
  74         { "tx_window_errors", E1000_STAT(stats.latecol) },
  75         { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
  76         { "tx_deferred_ok", E1000_STAT(stats.dc) },
  77         { "tx_single_coll_ok", E1000_STAT(stats.scc) },
  78         { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
  79         { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
  80         { "tx_restart_queue", E1000_STAT(restart_queue) },
  81         { "rx_long_length_errors", E1000_STAT(stats.roc) },
  82         { "rx_short_length_errors", E1000_STAT(stats.ruc) },
  83         { "rx_align_errors", E1000_STAT(stats.algnerrc) },
  84         { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
  85         { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
  86         { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
  87         { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
  88         { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
  89         { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
  90         { "rx_long_byte_count", E1000_STAT(stats.gorcl) },
  91         { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
  92         { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
  93         { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
  94         { "tx_smbus", E1000_STAT(stats.mgptc) },
  95         { "rx_smbus", E1000_STAT(stats.mgprc) },
  96         { "dropped_smbus", E1000_STAT(stats.mgpdc) },
  97 };
  98
  99 #define E1000_QUEUE_STATS_LEN 0
 100 #define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats)
 101 #define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN)
 102 static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 103         "Register test  (offline)", "Eeprom test    (offline)",
 104         "Interrupt test (offline)", "Loopback test  (offline)",
 105         "Link test   (on/offline)"
 106 };
 107 #define E1000_TEST_LEN  ARRAY_SIZE(e1000_gstrings_test)
 108
 109 static int e1000_get_settings(struct net_device *netdev,
 110                               struct ethtool_cmd *ecmd)
 111 {
 112         struct e1000_adapter *adapter = netdev_priv(netdev);
 113         struct e1000_hw *hw = &adapter->hw;
 114
 115         if (hw->media_type == e1000_media_type_copper) {
 116
 117                 ecmd->supported = (SUPPORTED_10baseT_Half |
 118                                    SUPPORTED_10baseT_Full |
 119                                    SUPPORTED_100baseT_Half |
 120                                    SUPPORTED_100baseT_Full |
 121                                    SUPPORTED_1000baseT_Full|
 122                                    SUPPORTED_Autoneg |
 123                                    SUPPORTED_TP);
 124                 ecmd->advertising = ADVERTISED_TP;
 125
 126                 if (hw->autoneg == 1) {
 127                         ecmd->advertising |= ADVERTISED_Autoneg;
 128                         /* the e1000 autoneg seems to match ethtool nicely */
 129                         ecmd->advertising |= hw->autoneg_advertised;
 130                 }
 131
 132                 ecmd->port = PORT_TP;
 133                 ecmd->phy_address = hw->phy_addr;
 134
 135                 if (hw->mac_type == e1000_82543)
 136                         ecmd->transceiver = XCVR_EXTERNAL;
 137                 else
 138                         ecmd->transceiver = XCVR_INTERNAL;
 139
 140         } else {
 141                 ecmd->supported   = (SUPPORTED_1000baseT_Full |
 142                                      SUPPORTED_FIBRE |
 143                                      SUPPORTED_Autoneg);
 144
 145                 ecmd->advertising = (ADVERTISED_1000baseT_Full |
 146                                      ADVERTISED_FIBRE |
 147                                      ADVERTISED_Autoneg);
 148
 149                 ecmd->port = PORT_FIBRE;
 150
 151                 if (hw->mac_type >= e1000_82545)
 152                         ecmd->transceiver = XCVR_INTERNAL;
 153                 else
 154                         ecmd->transceiver = XCVR_EXTERNAL;
 155         }
 156
 157         if (er32(STATUS) & E1000_STATUS_LU) {
 158
 159                 e1000_get_speed_and_duplex(hw, &adapter->link_speed,
 160                                                    &adapter->link_duplex);
 161                 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
 162
 163                 /* unfortunately FULL_DUPLEX != DUPLEX_FULL
 164                  *          and HALF_DUPLEX != DUPLEX_HALF */
 165
 166                 if (adapter->link_duplex == FULL_DUPLEX)
 167                         ecmd->duplex = DUPLEX_FULL;
 168                 else
 169                         ecmd->duplex = DUPLEX_HALF;
 170         } else {
 171                 ethtool_cmd_speed_set(ecmd, -1);
 172                 ecmd->duplex = -1;
 173         }
 174
 175         ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
 176                          hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 177         return 0;
 178 }
 179
 180 static int e1000_set_settings(struct net_device *netdev,
 181                               struct ethtool_cmd *ecmd)
 182 {
 183         struct e1000_adapter *adapter = netdev_priv(netdev);
 184         struct e1000_hw *hw = &adapter->hw;
 185
 186         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 187                 msleep(1);
 188
 189         if (ecmd->autoneg == AUTONEG_ENABLE) {
 190                 hw->autoneg = 1;
 191                 if (hw->media_type == e1000_media_type_fiber)
 192                         hw->autoneg_advertised = ADVERTISED_1000baseT_Full |
 193                                      ADVERTISED_FIBRE |
 194                                      ADVERTISED_Autoneg;
 195                 else
 196                         hw->autoneg_advertised = ecmd->advertising |
 197                                                  ADVERTISED_TP |
 198                                                  ADVERTISED_Autoneg;
 199                 ecmd->advertising = hw->autoneg_advertised;
 200         } else {
 201                 u32 speed = ethtool_cmd_speed(ecmd);
 202                 if (e1000_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 203                         clear_bit(__E1000_RESETTING, &adapter->flags);
 204                         return -EINVAL;
 205                 }
 206         }
 207
 208         /* reset the link */
 209
 210         if (netif_running(adapter->netdev)) {
 211                 e1000_down(adapter);
 212                 e1000_up(adapter);
 213         } else
 214                 e1000_reset(adapter);
 215
 216         clear_bit(__E1000_RESETTING, &adapter->flags);
 217         return 0;
 218 }
 219
 220 static u32 e1000_get_link(struct net_device *netdev)
 221 {
 222         struct e1000_adapter *adapter = netdev_priv(netdev);
 223
 224         /*
 225          * If the link is not reported up to netdev, interrupts are disabled,
 226          * and so the physical link state may have changed since we last
 227          * looked. Set get_link_status to make sure that the true link
 228          * state is interrogated, rather than pulling a cached and possibly
 229          * stale link state from the driver.
 230          */
 231         if (!netif_carrier_ok(netdev))
 232                 adapter->hw.get_link_status = 1;
 233
 234         return e1000_has_link(adapter);
 235 }
 236
 237 static void e1000_get_pauseparam(struct net_device *netdev,
 238                                  struct ethtool_pauseparam *pause)
 239 {
 240         struct e1000_adapter *adapter = netdev_priv(netdev);
 241         struct e1000_hw *hw = &adapter->hw;
 242
 243         pause->autoneg =
 244                 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 245
 246         if (hw->fc == E1000_FC_RX_PAUSE)
 247                 pause->rx_pause = 1;
 248         else if (hw->fc == E1000_FC_TX_PAUSE)
 249                 pause->tx_pause = 1;
 250         else if (hw->fc == E1000_FC_FULL) {
 251                 pause->rx_pause = 1;
 252                 pause->tx_pause = 1;
 253         }
 254 }
 255
 256 static int e1000_set_pauseparam(struct net_device *netdev,
 257                                 struct ethtool_pauseparam *pause)
 258 {
 259         struct e1000_adapter *adapter = netdev_priv(netdev);
 260         struct e1000_hw *hw = &adapter->hw;
 261         int retval = 0;
 262
 263         adapter->fc_autoneg = pause->autoneg;
 264
 265         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 266                 msleep(1);
 267
 268         if (pause->rx_pause && pause->tx_pause)
 269                 hw->fc = E1000_FC_FULL;
 270         else if (pause->rx_pause && !pause->tx_pause)
 271                 hw->fc = E1000_FC_RX_PAUSE;
 272         else if (!pause->rx_pause && pause->tx_pause)
 273                 hw->fc = E1000_FC_TX_PAUSE;
 274         else if (!pause->rx_pause && !pause->tx_pause)
 275                 hw->fc = E1000_FC_NONE;
 276
 277         hw->original_fc = hw->fc;
 278
 279         if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 280                 if (netif_running(adapter->netdev)) {
 281                         e1000_down(adapter);
 282                         e1000_up(adapter);
 283                 } else
 284                         e1000_reset(adapter);
 285         } else
 286                 retval = ((hw->media_type == e1000_media_type_fiber) ?
 287                           e1000_setup_link(hw) : e1000_force_mac_fc(hw));
 288
 289         clear_bit(__E1000_RESETTING, &adapter->flags);
 290         return retval;
 291 }
 292
 293 static u32 e1000_get_msglevel(struct net_device *netdev)
 294 {
 295         struct e1000_adapter *adapter = netdev_priv(netdev);
 296         return adapter->msg_enable;
 297 }
 298
 299 static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 300 {
 301         struct e1000_adapter *adapter = netdev_priv(netdev);
 302         adapter->msg_enable = data;
 303 }
 304
 305 static int e1000_get_regs_len(struct net_device *netdev)
 306 {
 307 #define E1000_REGS_LEN 32
 308         return E1000_REGS_LEN * sizeof(u32);
 309 }
 310
 311 static void e1000_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 312                            void *p)
 313 {
 314         struct e1000_adapter *adapter = netdev_priv(netdev);
 315         struct e1000_hw *hw = &adapter->hw;
 316         u32 *regs_buff = p;
 317         u16 phy_data;
 318
 319         memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 320
 321         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 322
 323         regs_buff[0]  = er32(CTRL);
 324         regs_buff[1]  = er32(STATUS);
 325
 326         regs_buff[2]  = er32(RCTL);
 327         regs_buff[3]  = er32(RDLEN);
 328         regs_buff[4]  = er32(RDH);
 329         regs_buff[5]  = er32(RDT);
 330         regs_buff[6]  = er32(RDTR);
 331
 332         regs_buff[7]  = er32(TCTL);
 333         regs_buff[8]  = er32(TDLEN);
 334         regs_buff[9]  = er32(TDH);
 335         regs_buff[10] = er32(TDT);
 336         regs_buff[11] = er32(TIDV);
 337
 338         regs_buff[12] = hw->phy_type;  /* PHY type (IGP=1, M88=0) */
 339         if (hw->phy_type == e1000_phy_igp) {
 340                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 341                                     IGP01E1000_PHY_AGC_A);
 342                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A &
 343                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 344                 regs_buff[13] = (u32)phy_data; /* cable length */
 345                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 346                                     IGP01E1000_PHY_AGC_B);
 347                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B &
 348                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 349                 regs_buff[14] = (u32)phy_data; /* cable length */
 350                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 351                                     IGP01E1000_PHY_AGC_C);
 352                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C &
 353                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 354                 regs_buff[15] = (u32)phy_data; /* cable length */
 355                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 356                                     IGP01E1000_PHY_AGC_D);
 357                 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D &
 358                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 359                 regs_buff[16] = (u32)phy_data; /* cable length */
 360                 regs_buff[17] = 0; /* extended 10bt distance (not needed) */
 361                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 362                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS &
 363                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 364                 regs_buff[18] = (u32)phy_data; /* cable polarity */
 365                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT,
 366                                     IGP01E1000_PHY_PCS_INIT_REG);
 367                 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG &
 368                                    IGP01E1000_PHY_PAGE_SELECT, &phy_data);
 369                 regs_buff[19] = (u32)phy_data; /* cable polarity */
 370                 regs_buff[20] = 0; /* polarity correction enabled (always) */
 371                 regs_buff[22] = 0; /* phy receive errors (unavailable) */
 372                 regs_buff[23] = regs_buff[18]; /* mdix mode */
 373                 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0);
 374         } else {
 375                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 376                 regs_buff[13] = (u32)phy_data; /* cable length */
 377                 regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 378                 regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 379                 regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 380                 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 381                 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 382                 regs_buff[18] = regs_buff[13]; /* cable polarity */
 383                 regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 384                 regs_buff[20] = regs_buff[17]; /* polarity correction */
 385                 /* phy receive errors */
 386                 regs_buff[22] = adapter->phy_stats.receive_errors;
 387                 regs_buff[23] = regs_buff[13]; /* mdix mode */
 388         }
 389         regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
 390         e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
 391         regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 392         regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 393         if (hw->mac_type >= e1000_82540 &&
 394             hw->media_type == e1000_media_type_copper) {
 395                 regs_buff[26] = er32(MANC);
 396         }
 397 }
 398
 399 static int e1000_get_eeprom_len(struct net_device *netdev)
 400 {
 401         struct e1000_adapter *adapter = netdev_priv(netdev);
 402         struct e1000_hw *hw = &adapter->hw;
 403
 404         return hw->eeprom.word_size * 2;
 405 }
 406
 407 static int e1000_get_eeprom(struct net_device *netdev,
 408                             struct ethtool_eeprom *eeprom, u8 *bytes)
 409 {
 410         struct e1000_adapter *adapter = netdev_priv(netdev);
 411         struct e1000_hw *hw = &adapter->hw;
 412         u16 *eeprom_buff;
 413         int first_word, last_word;
 414         int ret_val = 0;
 415         u16 i;
 416
 417         if (eeprom->len == 0)
 418                 return -EINVAL;
 419
 420         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 421
 422         first_word = eeprom->offset >> 1;
 423         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 424
 425         eeprom_buff = kmalloc(sizeof(u16) *
 426                         (last_word - first_word + 1), GFP_KERNEL);
 427         if (!eeprom_buff)
 428                 return -ENOMEM;
 429
 430         if (hw->eeprom.type == e1000_eeprom_spi)
 431                 ret_val = e1000_read_eeprom(hw, first_word,
 432                                             last_word - first_word + 1,
 433                                             eeprom_buff);
 434         else {
 435                 for (i = 0; i < last_word - first_word + 1; i++) {
 436                         ret_val = e1000_read_eeprom(hw, first_word + i, 1,
 437                                                     &eeprom_buff[i]);
 438                         if (ret_val)
 439                                 break;
 440                 }
 441         }
 442
 443         /* Device's eeprom is always little-endian, word addressable */
 444         for (i = 0; i < last_word - first_word + 1; i++)
 445                 le16_to_cpus(&eeprom_buff[i]);
 446
 447         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
 448                         eeprom->len);
 449         kfree(eeprom_buff);
 450
 451         return ret_val;
 452 }
 453
 454 static int e1000_set_eeprom(struct net_device *netdev,
 455                             struct ethtool_eeprom *eeprom, u8 *bytes)
 456 {
 457         struct e1000_adapter *adapter = netdev_priv(netdev);
 458         struct e1000_hw *hw = &adapter->hw;
 459         u16 *eeprom_buff;
 460         void *ptr;
 461         int max_len, first_word, last_word, ret_val = 0;
 462         u16 i;
 463
 464         if (eeprom->len == 0)
 465                 return -EOPNOTSUPP;
 466
 467         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 468                 return -EFAULT;
 469
 470         max_len = hw->eeprom.word_size * 2;
 471
 472         first_word = eeprom->offset >> 1;
 473         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 474         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 475         if (!eeprom_buff)
 476                 return -ENOMEM;
 477
 478         ptr = (void *)eeprom_buff;
 479
 480         if (eeprom->offset & 1) {
 481                 /* need read/modify/write of first changed EEPROM word */
 482                 /* only the second byte of the word is being modified */
 483                 ret_val = e1000_read_eeprom(hw, first_word, 1,
 484                                             &eeprom_buff[0]);
 485                 ptr++;
 486         }
 487         if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 488                 /* need read/modify/write of last changed EEPROM word */
 489                 /* only the first byte of the word is being modified */
 490                 ret_val = e1000_read_eeprom(hw, last_word, 1,
 491                                   &eeprom_buff[last_word - first_word]);
 492         }
 493
 494         /* Device's eeprom is always little-endian, word addressable */
 495         for (i = 0; i < last_word - first_word + 1; i++)
 496                 le16_to_cpus(&eeprom_buff[i]);
 497
 498         memcpy(ptr, bytes, eeprom->len);
 499
 500         for (i = 0; i < last_word - first_word + 1; i++)
 501                 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 502
 503         ret_val = e1000_write_eeprom(hw, first_word,
 504                                      last_word - first_word + 1, eeprom_buff);
 505
 506         /* Update the checksum over the first part of the EEPROM if needed */
 507         if ((ret_val == 0) && (first_word <= EEPROM_CHECKSUM_REG))
 508                 e1000_update_eeprom_checksum(hw);
 509
 510         kfree(eeprom_buff);
 511         return ret_val;
 512 }
 513
 514 static void e1000_get_drvinfo(struct net_device *netdev,
 515                               struct ethtool_drvinfo *drvinfo)
 516 {
 517         struct e1000_adapter *adapter = netdev_priv(netdev);
 518
 519         strlcpy(drvinfo->driver,  e1000_driver_name,
 520                 sizeof(drvinfo->driver));
 521         strlcpy(drvinfo->version, e1000_driver_version,
 522                 sizeof(drvinfo->version));
 523
 524         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 525                 sizeof(drvinfo->bus_info));
 526         drvinfo->regdump_len = e1000_get_regs_len(netdev);
 527         drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 528 }
 529
 530 static void e1000_get_ringparam(struct net_device *netdev,
 531                                 struct ethtool_ringparam *ring)
 532 {
 533         struct e1000_adapter *adapter = netdev_priv(netdev);
 534         struct e1000_hw *hw = &adapter->hw;
 535         e1000_mac_type mac_type = hw->mac_type;
 536         struct e1000_tx_ring *txdr = adapter->tx_ring;
 537         struct e1000_rx_ring *rxdr = adapter->rx_ring;
 538
 539         ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD :
 540                 E1000_MAX_82544_RXD;
 541         ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD :
 542                 E1000_MAX_82544_TXD;
 543         ring->rx_pending = rxdr->count;
 544         ring->tx_pending = txdr->count;
 545 }
 546
 547 static int e1000_set_ringparam(struct net_device *netdev,
 548                                struct ethtool_ringparam *ring)
 549 {
 550         struct e1000_adapter *adapter = netdev_priv(netdev);
 551         struct e1000_hw *hw = &adapter->hw;
 552         e1000_mac_type mac_type = hw->mac_type;
 553         struct e1000_tx_ring *txdr, *tx_old;
 554         struct e1000_rx_ring *rxdr, *rx_old;
 555         int i, err;
 556
 557         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 558                 return -EINVAL;
 559
 560         while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 561                 msleep(1);
 562
 563         if (netif_running(adapter->netdev))
 564                 e1000_down(adapter);
 565
 566         tx_old = adapter->tx_ring;
 567         rx_old = adapter->rx_ring;
 568
 569         err = -ENOMEM;
 570         txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), GFP_KERNEL);
 571         if (!txdr)
 572                 goto err_alloc_tx;
 573
 574         rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), GFP_KERNEL);
 575         if (!rxdr)
 576                 goto err_alloc_rx;
 577
 578         adapter->tx_ring = txdr;
 579         adapter->rx_ring = rxdr;
 580
 581         rxdr->count = max(ring->rx_pending,(u32)E1000_MIN_RXD);
 582         rxdr->count = min(rxdr->count,(u32)(mac_type < e1000_82544 ?
 583                 E1000_MAX_RXD : E1000_MAX_82544_RXD));
 584         rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 585
 586         txdr->count = max(ring->tx_pending,(u32)E1000_MIN_TXD);
 587         txdr->count = min(txdr->count,(u32)(mac_type < e1000_82544 ?
 588                 E1000_MAX_TXD : E1000_MAX_82544_TXD));
 589         txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 590
 591         for (i = 0; i < adapter->num_tx_queues; i++)
 592                 txdr[i].count = txdr->count;
 593         for (i = 0; i < adapter->num_rx_queues; i++)
 594                 rxdr[i].count = rxdr->count;
 595
 596         if (netif_running(adapter->netdev)) {
 597                 /* Try to get new resources before deleting old */
 598                 err = e1000_setup_all_rx_resources(adapter);
 599                 if (err)
 600                         goto err_setup_rx;
 601                 err = e1000_setup_all_tx_resources(adapter);
 602                 if (err)
 603                         goto err_setup_tx;
 604
 605                 /* save the new, restore the old in order to free it,
 606                  * then restore the new back again */
 607
 608                 adapter->rx_ring = rx_old;
 609                 adapter->tx_ring = tx_old;
 610                 e1000_free_all_rx_resources(adapter);
 611                 e1000_free_all_tx_resources(adapter);
 612                 kfree(tx_old);
 613                 kfree(rx_old);
 614                 adapter->rx_ring = rxdr;
 615                 adapter->tx_ring = txdr;
 616                 err = e1000_up(adapter);
 617                 if (err)
 618                         goto err_setup;
 619         }
 620
 621         clear_bit(__E1000_RESETTING, &adapter->flags);
 622         return 0;
 623 err_setup_tx:
 624         e1000_free_all_rx_resources(adapter);
 625 err_setup_rx:
 626         adapter->rx_ring = rx_old;
 627         adapter->tx_ring = tx_old;
 628         kfree(rxdr);
 629 err_alloc_rx:
 630         kfree(txdr);
 631 err_alloc_tx:
 632         e1000_up(adapter);
 633 err_setup:
 634         clear_bit(__E1000_RESETTING, &adapter->flags);
 635         return err;
 636 }
 637
 638 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg,
 639                              u32 mask, u32 write)
 640 {
 641         struct e1000_hw *hw = &adapter->hw;
 642         static const u32 test[] =
 643                 {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 644         u8 __iomem *address = hw->hw_addr + reg;
 645         u32 read;
 646         int i;
 647
 648         for (i = 0; i < ARRAY_SIZE(test); i++) {
 649                 writel(write & test[i], address);
 650                 read = readl(address);
 651                 if (read != (write & test[i] & mask)) {
 652                         e_err(drv, "pattern test reg %04X failed: "
 653                               "got 0x%08X expected 0x%08X\n",
 654                               reg, read, (write & test[i] & mask));
 655                         *data = reg;
 656                         return true;
 657                 }
 658         }
 659         return false;
 660 }
 661
 662 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg,
 663                               u32 mask, u32 write)
 664 {
 665         struct e1000_hw *hw = &adapter->hw;
 666         u8 __iomem *address = hw->hw_addr + reg;
 667         u32 read;
 668
 669         writel(write & mask, address);
 670         read = readl(address);
 671         if ((read & mask) != (write & mask)) {
 672                 e_err(drv, "set/check reg %04X test failed: "
 673                       "got 0x%08X expected 0x%08X\n",
 674                       reg, (read & mask), (write & mask));
 675                 *data = reg;
 676                 return true;
 677         }
 678         return false;
 679 }
 680
 681 #define REG_PATTERN_TEST(reg, mask, write)                           \
 682         do {                                                         \
 683                 if (reg_pattern_test(adapter, data,                  \
 684                              (hw->mac_type >= e1000_82543)   \
 685                              ? E1000_##reg : E1000_82542_##reg,      \
 686                              mask, write))                           \
 687                         return 1;                                    \
 688         } while (0)
 689
 690 #define REG_SET_AND_CHECK(reg, mask, write)                          \
 691         do {                                                         \
 692                 if (reg_set_and_check(adapter, data,                 \
 693                               (hw->mac_type >= e1000_82543)  \
 694                               ? E1000_##reg : E1000_82542_##reg,     \
 695                               mask, write))                          \
 696                         return 1;                                    \
 697         } while (0)
 698
 699 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 700 {
 701         u32 value, before, after;
 702         u32 i, toggle;
 703         struct e1000_hw *hw = &adapter->hw;
 704
 705         /* The status register is Read Only, so a write should fail.
 706          * Some bits that get toggled are ignored.
 707          */
 708
 709         /* there are several bits on newer hardware that are r/w */
 710         toggle = 0xFFFFF833;
 711
 712         before = er32(STATUS);
 713         value = (er32(STATUS) & toggle);
 714         ew32(STATUS, toggle);
 715         after = er32(STATUS) & toggle;
 716         if (value != after) {
 717                 e_err(drv, "failed STATUS register test got: "
 718                       "0x%08X expected: 0x%08X\n", after, value);
 719                 *data = 1;
 720                 return 1;
 721         }
 722         /* restore previous status */
 723         ew32(STATUS, before);
 724
 725         REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 726         REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF);
 727         REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF);
 728         REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF);
 729
 730         REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF);
 731         REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 732         REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF);
 733         REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF);
 734         REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF);
 735         REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8);
 736         REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF);
 737         REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 738         REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 739         REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF);
 740
 741         REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000);
 742
 743         before = 0x06DFB3FE;
 744         REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB);
 745         REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000);
 746
 747         if (hw->mac_type >= e1000_82543) {
 748
 749                 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF);
 750                 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 751                 REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF);
 752                 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 753                 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF);
 754                 value = E1000_RAR_ENTRIES;
 755                 for (i = 0; i < value; i++) {
 756                         REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 0x8003FFFF,
 757                                          0xFFFFFFFF);
 758                 }
 759
 760         } else {
 761
 762                 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF);
 763                 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF);
 764                 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF);
 765                 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF);
 766
 767         }
 768
 769         value = E1000_MC_TBL_SIZE;
 770         for (i = 0; i < value; i++)
 771                 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF);
 772
 773         *data = 0;
 774         return 0;
 775 }
 776
 777 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 778 {
 779         struct e1000_hw *hw = &adapter->hw;
 780         u16 temp;
 781         u16 checksum = 0;
 782         u16 i;
 783
 784         *data = 0;
 785         /* Read and add up the contents of the EEPROM */
 786         for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
 787                 if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) {
 788                         *data = 1;
 789                         break;
 790                 }
 791                 checksum += temp;
 792         }
 793
 794         /* If Checksum is not Correct return error else test passed */
 795         if ((checksum != (u16)EEPROM_SUM) && !(*data))
 796                 *data = 2;
 797
 798         return *data;
 799 }
 800
 801 static irqreturn_t e1000_test_intr(int irq, void *data)
 802 {
 803         struct net_device *netdev = (struct net_device *)data;
 804         struct e1000_adapter *adapter = netdev_priv(netdev);
 805         struct e1000_hw *hw = &adapter->hw;
 806
 807         adapter->test_icr |= er32(ICR);
 808
 809         return IRQ_HANDLED;
 810 }
 811
 812 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 813 {
 814         struct net_device *netdev = adapter->netdev;
 815         u32 mask, i = 0;
 816         bool shared_int = true;
 817         u32 irq = adapter->pdev->irq;
 818         struct e1000_hw *hw = &adapter->hw;
 819
 820         *data = 0;
 821
 822         /* NOTE: we don't test MSI interrupts here, yet */
 823         /* Hook up test interrupt handler just for this test */
 824         if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 825                          netdev))
 826                 shared_int = false;
 827         else if (request_irq(irq, e1000_test_intr, IRQF_SHARED,
 828                  netdev->name, netdev)) {
 829                 *data = 1;
 830                 return -1;
 831         }
 832         e_info(hw, "testing %s interrupt\n", (shared_int ?
 833                "shared" : "unshared"));
 834
 835         /* Disable all the interrupts */
 836         ew32(IMC, 0xFFFFFFFF);
 837         E1000_WRITE_FLUSH();
 838         msleep(10);
 839
 840         /* Test each interrupt */
 841         for (; i < 10; i++) {
 842
 843                 /* Interrupt to test */
 844                 mask = 1 << i;
 845
 846                 if (!shared_int) {
 847                         /* Disable the interrupt to be reported in
 848                          * the cause register and then force the same
 849                          * interrupt and see if one gets posted.  If
 850                          * an interrupt was posted to the bus, the
 851                          * test failed.
 852                          */
 853                         adapter->test_icr = 0;
 854                         ew32(IMC, mask);
 855                         ew32(ICS, mask);
 856                         E1000_WRITE_FLUSH();
 857                         msleep(10);
 858
 859                         if (adapter->test_icr & mask) {
 860                                 *data = 3;
 861                                 break;
 862                         }
 863                 }
 864
 865                 /* Enable the interrupt to be reported in
 866                  * the cause register and then force the same
 867                  * interrupt and see if one gets posted.  If
 868                  * an interrupt was not posted to the bus, the
 869                  * test failed.
 870                  */
 871                 adapter->test_icr = 0;
 872                 ew32(IMS, mask);
 873                 ew32(ICS, mask);
 874                 E1000_WRITE_FLUSH();
 875                 msleep(10);
 876
 877                 if (!(adapter->test_icr & mask)) {
 878                         *data = 4;
 879                         break;
 880                 }
 881
 882                 if (!shared_int) {
 883                         /* Disable the other interrupts to be reported in
 884                          * the cause register and then force the other
 885                          * interrupts and see if any get posted.  If
 886                          * an interrupt was posted to the bus, the
 887                          * test failed.
 888                          */
 889                         adapter->test_icr = 0;
 890                         ew32(IMC, ~mask & 0x00007FFF);
 891                         ew32(ICS, ~mask & 0x00007FFF);
 892                         E1000_WRITE_FLUSH();
 893                         msleep(10);
 894
 895                         if (adapter->test_icr) {
 896                                 *data = 5;
 897                                 break;
 898                         }
 899                 }
 900         }
 901
 902         /* Disable all the interrupts */
 903         ew32(IMC, 0xFFFFFFFF);
 904         E1000_WRITE_FLUSH();
 905         msleep(10);
 906
 907         /* Unhook test interrupt handler */
 908         free_irq(irq, netdev);
 909
 910         return *data;
 911 }
 912
 913 static void e1000_free_desc_rings(struct e1000_adapter *adapter)
 914 {
 915         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
 916         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
 917         struct pci_dev *pdev = adapter->pdev;
 918         int i;
 919
 920         if (txdr->desc && txdr->buffer_info) {
 921                 for (i = 0; i < txdr->count; i++) {
 922                         if (txdr->buffer_info[i].dma)
 923                                 dma_unmap_single(&pdev->dev,
 924                                                  txdr->buffer_info[i].dma,
 925                                                  txdr->buffer_info[i].length,
 926                                                  DMA_TO_DEVICE);
 927                         if (txdr->buffer_info[i].skb)
 928                                 dev_kfree_skb(txdr->buffer_info[i].skb);
 929                 }
 930         }
 931
 932         if (rxdr->desc && rxdr->buffer_info) {
 933                 for (i = 0; i < rxdr->count; i++) {
 934                         if (rxdr->buffer_info[i].dma)
 935                                 dma_unmap_single(&pdev->dev,
 936                                                  rxdr->buffer_info[i].dma,
 937                                                  rxdr->buffer_info[i].length,
 938                                                  DMA_FROM_DEVICE);
 939                         if (rxdr->buffer_info[i].skb)
 940                                 dev_kfree_skb(rxdr->buffer_info[i].skb);
 941                 }
 942         }
 943
 944         if (txdr->desc) {
 945                 dma_free_coherent(&pdev->dev, txdr->size, txdr->desc,
 946                                   txdr->dma);
 947                 txdr->desc = NULL;
 948         }
 949         if (rxdr->desc) {
 950                 dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc,
 951                                   rxdr->dma);
 952                 rxdr->desc = NULL;
 953         }
 954
 955         kfree(txdr->buffer_info);
 956         txdr->buffer_info = NULL;
 957         kfree(rxdr->buffer_info);
 958         rxdr->buffer_info = NULL;
 959 }
 960
 961 static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
 962 {
 963         struct e1000_hw *hw = &adapter->hw;
 964         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
 965         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
 966         struct pci_dev *pdev = adapter->pdev;
 967         u32 rctl;
 968         int i, ret_val;
 969
 970         /* Setup Tx descriptor ring and Tx buffers */
 971
 972         if (!txdr->count)
 973                 txdr->count = E1000_DEFAULT_TXD;
 974
 975         txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_buffer),
 976                                     GFP_KERNEL);
 977         if (!txdr->buffer_info) {
 978                 ret_val = 1;
 979                 goto err_nomem;
 980         }
 981
 982         txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
 983         txdr->size = ALIGN(txdr->size, 4096);
 984         txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
 985                                         GFP_KERNEL);
 986         if (!txdr->desc) {
 987                 ret_val = 2;
 988                 goto err_nomem;
 989         }
 990         memset(txdr->desc, 0, txdr->size);
 991         txdr->next_to_use = txdr->next_to_clean = 0;
 992
 993         ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF));
 994         ew32(TDBAH, ((u64)txdr->dma >> 32));
 995         ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc));
 996         ew32(TDH, 0);
 997         ew32(TDT, 0);
 998         ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN |
 999              E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1000              E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1001
1002         for (i = 0; i < txdr->count; i++) {
1003                 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i);
1004                 struct sk_buff *skb;
1005                 unsigned int size = 1024;
1006
1007                 skb = alloc_skb(size, GFP_KERNEL);
1008                 if (!skb) {
1009                         ret_val = 3;
1010                         goto err_nomem;
1011                 }
1012                 skb_put(skb, size);
1013                 txdr->buffer_info[i].skb = skb;
1014                 txdr->buffer_info[i].length = skb->len;
1015                 txdr->buffer_info[i].dma =
1016                         dma_map_single(&pdev->dev, skb->data, skb->len,
1017                                        DMA_TO_DEVICE);
1018                 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);
1019                 tx_desc->lower.data = cpu_to_le32(skb->len);
1020                 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1021                                                    E1000_TXD_CMD_IFCS |
1022                                                    E1000_TXD_CMD_RPS);
1023                 tx_desc->upper.data = 0;
1024         }
1025
1026         /* Setup Rx descriptor ring and Rx buffers */
1027
1028         if (!rxdr->count)
1029                 rxdr->count = E1000_DEFAULT_RXD;
1030
1031         rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer),
1032                                     GFP_KERNEL);
1033         if (!rxdr->buffer_info) {
1034                 ret_val = 4;
1035                 goto err_nomem;
1036         }
1037
1038         rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
1039         rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
1040                                         GFP_KERNEL);
1041         if (!rxdr->desc) {
1042                 ret_val = 5;
1043                 goto err_nomem;
1044         }
1045         memset(rxdr->desc, 0, rxdr->size);
1046         rxdr->next_to_use = rxdr->next_to_clean = 0;
1047
1048         rctl = er32(RCTL);
1049         ew32(RCTL, rctl & ~E1000_RCTL_EN);
1050         ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF));
1051         ew32(RDBAH, ((u64)rxdr->dma >> 32));
1052         ew32(RDLEN, rxdr->size);
1053         ew32(RDH, 0);
1054         ew32(RDT, 0);
1055         rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1056                 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1057                 (hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
1058         ew32(RCTL, rctl);
1059
1060         for (i = 0; i < rxdr->count; i++) {
1061                 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i);
1062                 struct sk_buff *skb;
1063
1064                 skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL);
1065                 if (!skb) {
1066                         ret_val = 6;
1067                         goto err_nomem;
1068                 }
1069                 skb_reserve(skb, NET_IP_ALIGN);
1070                 rxdr->buffer_info[i].skb = skb;
1071                 rxdr->buffer_info[i].length = E1000_RXBUFFER_2048;
1072                 rxdr->buffer_info[i].dma =
1073                         dma_map_single(&pdev->dev, skb->data,
1074                                        E1000_RXBUFFER_2048, DMA_FROM_DEVICE);
1075                 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);
1076                 memset(skb->data, 0x00, skb->len);
1077         }
1078
1079         return 0;
1080
1081 err_nomem:
1082         e1000_free_desc_rings(adapter);
1083         return ret_val;
1084 }
1085
1086 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1087 {
1088         struct e1000_hw *hw = &adapter->hw;
1089
1090         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1091         e1000_write_phy_reg(hw, 29, 0x001F);
1092         e1000_write_phy_reg(hw, 30, 0x8FFC);
1093         e1000_write_phy_reg(hw, 29, 0x001A);
1094         e1000_write_phy_reg(hw, 30, 0x8FF0);
1095 }
1096
1097 static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter)
1098 {
1099         struct e1000_hw *hw = &adapter->hw;
1100         u16 phy_reg;
1101
1102         /* Because we reset the PHY above, we need to re-force TX_CLK in the
1103          * Extended PHY Specific Control Register to 25MHz clock.  This
1104          * value defaults back to a 2.5MHz clock when the PHY is reset.
1105          */
1106         e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1107         phy_reg |= M88E1000_EPSCR_TX_CLK_25;
1108         e1000_write_phy_reg(hw,
1109                 M88E1000_EXT_PHY_SPEC_CTRL, phy_reg);
1110
1111         /* In addition, because of the s/w reset above, we need to enable
1112          * CRS on TX.  This must be set for both full and half duplex
1113          * operation.
1114          */
1115         e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1116         phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
1117         e1000_write_phy_reg(hw,
1118                 M88E1000_PHY_SPEC_CTRL, phy_reg);
1119 }
1120
1121 static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter)
1122 {
1123         struct e1000_hw *hw = &adapter->hw;
1124         u32 ctrl_reg;
1125         u16 phy_reg;
1126
1127         /* Setup the Device Control Register for PHY loopback test. */
1128
1129         ctrl_reg = er32(CTRL);
1130         ctrl_reg |= (E1000_CTRL_ILOS |          /* Invert Loss-Of-Signal */
1131                      E1000_CTRL_FRCSPD |        /* Set the Force Speed Bit */
1132                      E1000_CTRL_FRCDPX |        /* Set the Force Duplex Bit */
1133                      E1000_CTRL_SPD_1000 |      /* Force Speed to 1000 */
1134                      E1000_CTRL_FD);            /* Force Duplex to FULL */
1135
1136         ew32(CTRL, ctrl_reg);
1137
1138         /* Read the PHY Specific Control Register (0x10) */
1139         e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg);
1140
1141         /* Clear Auto-Crossover bits in PHY Specific Control Register
1142          * (bits 6:5).
1143          */
1144         phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
1145         e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg);
1146
1147         /* Perform software reset on the PHY */
1148         e1000_phy_reset(hw);
1149
1150         /* Have to setup TX_CLK and TX_CRS after software reset */
1151         e1000_phy_reset_clk_and_crs(adapter);
1152
1153         e1000_write_phy_reg(hw, PHY_CTRL, 0x8100);
1154
1155         /* Wait for reset to complete. */
1156         udelay(500);
1157
1158         /* Have to setup TX_CLK and TX_CRS after software reset */
1159         e1000_phy_reset_clk_and_crs(adapter);
1160
1161         /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1162         e1000_phy_disable_receiver(adapter);
1163
1164         /* Set the loopback bit in the PHY control register. */
1165         e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1166         phy_reg |= MII_CR_LOOPBACK;
1167         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1168
1169         /* Setup TX_CLK and TX_CRS one more time. */
1170         e1000_phy_reset_clk_and_crs(adapter);
1171
1172         /* Check Phy Configuration */
1173         e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1174         if (phy_reg != 0x4100)
1175                  return 9;
1176
1177         e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg);
1178         if (phy_reg != 0x0070)
1179                 return 10;
1180
1181         e1000_read_phy_reg(hw, 29, &phy_reg);
1182         if (phy_reg != 0x001A)
1183                 return 11;
1184
1185         return 0;
1186 }
1187
1188 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1189 {
1190         struct e1000_hw *hw = &adapter->hw;
1191         u32 ctrl_reg = 0;
1192         u32 stat_reg = 0;
1193
1194         hw->autoneg = false;
1195
1196         if (hw->phy_type == e1000_phy_m88) {
1197                 /* Auto-MDI/MDIX Off */
1198                 e1000_write_phy_reg(hw,
1199                                     M88E1000_PHY_SPEC_CTRL, 0x0808);
1200                 /* reset to update Auto-MDI/MDIX */
1201                 e1000_write_phy_reg(hw, PHY_CTRL, 0x9140);
1202                 /* autoneg off */
1203                 e1000_write_phy_reg(hw, PHY_CTRL, 0x8140);
1204         }
1205
1206         ctrl_reg = er32(CTRL);
1207
1208         /* force 1000, set loopback */
1209         e1000_write_phy_reg(hw, PHY_CTRL, 0x4140);
1210
1211         /* Now set up the MAC to the same speed/duplex as the PHY. */
1212         ctrl_reg = er32(CTRL);
1213         ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1214         ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1215                         E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1216                         E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1217                         E1000_CTRL_FD);  /* Force Duplex to FULL */
1218
1219         if (hw->media_type == e1000_media_type_copper &&
1220            hw->phy_type == e1000_phy_m88)
1221                 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1222         else {
1223                 /* Set the ILOS bit on the fiber Nic is half
1224                  * duplex link is detected. */
1225                 stat_reg = er32(STATUS);
1226                 if ((stat_reg & E1000_STATUS_FD) == 0)
1227                         ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1228         }
1229
1230         ew32(CTRL, ctrl_reg);
1231
1232         /* Disable the receiver on the PHY so when a cable is plugged in, the
1233          * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1234          */
1235         if (hw->phy_type == e1000_phy_m88)
1236                 e1000_phy_disable_receiver(adapter);
1237
1238         udelay(500);
1239
1240         return 0;
1241 }
1242
1243 static int e1000_set_phy_loopback(struct e1000_adapter *adapter)
1244 {
1245         struct e1000_hw *hw = &adapter->hw;
1246         u16 phy_reg = 0;
1247         u16 count = 0;
1248
1249         switch (hw->mac_type) {
1250         case e1000_82543:
1251                 if (hw->media_type == e1000_media_type_copper) {
1252                         /* Attempt to setup Loopback mode on Non-integrated PHY.
1253                          * Some PHY registers get corrupted at random, so
1254                          * attempt this 10 times.
1255                          */
1256                         while (e1000_nonintegrated_phy_loopback(adapter) &&
1257                               count++ < 10);
1258                         if (count < 11)
1259                                 return 0;
1260                 }
1261                 break;
1262
1263         case e1000_82544:
1264         case e1000_82540:
1265         case e1000_82545:
1266         case e1000_82545_rev_3:
1267         case e1000_82546:
1268         case e1000_82546_rev_3:
1269         case e1000_82541:
1270         case e1000_82541_rev_2:
1271         case e1000_82547:
1272         case e1000_82547_rev_2:
1273                 return e1000_integrated_phy_loopback(adapter);
1274                 break;
1275         default:
1276                 /* Default PHY loopback work is to read the MII
1277                  * control register and assert bit 14 (loopback mode).
1278                  */
1279                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1280                 phy_reg |= MII_CR_LOOPBACK;
1281                 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1282                 return 0;
1283                 break;
1284         }
1285
1286         return 8;
1287 }
1288
1289 static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1290 {
1291         struct e1000_hw *hw = &adapter->hw;
1292         u32 rctl;
1293
1294         if (hw->media_type == e1000_media_type_fiber ||
1295             hw->media_type == e1000_media_type_internal_serdes) {
1296                 switch (hw->mac_type) {
1297                 case e1000_82545:
1298                 case e1000_82546:
1299                 case e1000_82545_rev_3:
1300                 case e1000_82546_rev_3:
1301                         return e1000_set_phy_loopback(adapter);
1302                         break;
1303                 default:
1304                         rctl = er32(RCTL);
1305                         rctl |= E1000_RCTL_LBM_TCVR;
1306                         ew32(RCTL, rctl);
1307                         return 0;
1308                 }
1309         } else if (hw->media_type == e1000_media_type_copper)
1310                 return e1000_set_phy_loopback(adapter);
1311
1312         return 7;
1313 }
1314
1315 static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1316 {
1317         struct e1000_hw *hw = &adapter->hw;
1318         u32 rctl;
1319         u16 phy_reg;
1320
1321         rctl = er32(RCTL);
1322         rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1323         ew32(RCTL, rctl);
1324
1325         switch (hw->mac_type) {
1326         case e1000_82545:
1327         case e1000_82546:
1328         case e1000_82545_rev_3:
1329         case e1000_82546_rev_3:
1330         default:
1331                 hw->autoneg = true;
1332                 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg);
1333                 if (phy_reg & MII_CR_LOOPBACK) {
1334                         phy_reg &= ~MII_CR_LOOPBACK;
1335                         e1000_write_phy_reg(hw, PHY_CTRL, phy_reg);
1336                         e1000_phy_reset(hw);
1337                 }
1338                 break;
1339         }
1340 }
1341
1342 static void e1000_create_lbtest_frame(struct sk_buff *skb,
1343                                       unsigned int frame_size)
1344 {
1345         memset(skb->data, 0xFF, frame_size);
1346         frame_size &= ~1;
1347         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1348         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1349         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1350 }
1351
1352 static int e1000_check_lbtest_frame(struct sk_buff *skb,
1353                                     unsigned int frame_size)
1354 {
1355         frame_size &= ~1;
1356         if (*(skb->data + 3) == 0xFF) {
1357                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1358                    (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
1359                         return 0;
1360                 }
1361         }
1362         return 13;
1363 }
1364
1365 static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1366 {
1367         struct e1000_hw *hw = &adapter->hw;
1368         struct e1000_tx_ring *txdr = &adapter->test_tx_ring;
1369         struct e1000_rx_ring *rxdr = &adapter->test_rx_ring;
1370         struct pci_dev *pdev = adapter->pdev;
1371         int i, j, k, l, lc, good_cnt, ret_val=0;
1372         unsigned long time;
1373
1374         ew32(RDT, rxdr->count - 1);
1375
1376         /* Calculate the loop count based on the largest descriptor ring
1377          * The idea is to wrap the largest ring a number of times using 64
1378          * send/receive pairs during each loop
1379          */
1380
1381         if (rxdr->count <= txdr->count)
1382                 lc = ((txdr->count / 64) * 2) + 1;
1383         else
1384                 lc = ((rxdr->count / 64) * 2) + 1;
1385
1386         k = l = 0;
1387         for (j = 0; j <= lc; j++) { /* loop count loop */
1388                 for (i = 0; i < 64; i++) { /* send the packets */
1389                         e1000_create_lbtest_frame(txdr->buffer_info[i].skb,
1390                                         1024);
1391                         dma_sync_single_for_device(&pdev->dev,
1392                                                    txdr->buffer_info[k].dma,
1393                                                    txdr->buffer_info[k].length,
1394                                                    DMA_TO_DEVICE);
1395                         if (unlikely(++k == txdr->count)) k = 0;
1396                 }
1397                 ew32(TDT, k);
1398                 E1000_WRITE_FLUSH();
1399                 msleep(200);
1400                 time = jiffies; /* set the start time for the receive */
1401                 good_cnt = 0;
1402                 do { /* receive the sent packets */
1403                         dma_sync_single_for_cpu(&pdev->dev,
1404                                                 rxdr->buffer_info[l].dma,
1405                                                 rxdr->buffer_info[l].length,
1406                                                 DMA_FROM_DEVICE);
1407
1408                         ret_val = e1000_check_lbtest_frame(
1409                                         rxdr->buffer_info[l].skb,
1410                                         1024);
1411                         if (!ret_val)
1412                                 good_cnt++;
1413                         if (unlikely(++l == rxdr->count)) l = 0;
1414                         /* time + 20 msecs (200 msecs on 2.4) is more than
1415                          * enough time to complete the receives, if it's
1416                          * exceeded, break and error off
1417                          */
1418                 } while (good_cnt < 64 && jiffies < (time + 20));
1419                 if (good_cnt != 64) {
1420                         ret_val = 13; /* ret_val is the same as mis-compare */
1421                         break;
1422                 }
1423                 if (jiffies >= (time + 2)) {
1424                         ret_val = 14; /* error code for time out error */
1425                         break;
1426                 }
1427         } /* end loop count loop */
1428         return ret_val;
1429 }
1430
1431 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1432 {
1433         *data = e1000_setup_desc_rings(adapter);
1434         if (*data)
1435                 goto out;
1436         *data = e1000_setup_loopback_test(adapter);
1437         if (*data)
1438                 goto err_loopback;
1439         *data = e1000_run_loopback_test(adapter);
1440         e1000_loopback_cleanup(adapter);
1441
1442 err_loopback:
1443         e1000_free_desc_rings(adapter);
1444 out:
1445         return *data;
1446 }
1447
1448 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1449 {
1450         struct e1000_hw *hw = &adapter->hw;
1451         *data = 0;
1452         if (hw->media_type == e1000_media_type_internal_serdes) {
1453                 int i = 0;
1454                 hw->serdes_has_link = false;
1455
1456                 /* On some blade server designs, link establishment
1457                  * could take as long as 2-3 minutes */
1458                 do {
1459                         e1000_check_for_link(hw);
1460                         if (hw->serdes_has_link)
1461                                 return *data;
1462                         msleep(20);
1463                 } while (i++ < 3750);
1464
1465                 *data = 1;
1466         } else {
1467                 e1000_check_for_link(hw);
1468                 if (hw->autoneg)  /* if auto_neg is set wait for it */
1469                         msleep(4000);
1470
1471                 if (!(er32(STATUS) & E1000_STATUS_LU)) {
1472                         *data = 1;
1473                 }
1474         }
1475         return *data;
1476 }
1477
1478 static int e1000_get_sset_count(struct net_device *netdev, int sset)
1479 {
1480         switch (sset) {
1481         case ETH_SS_TEST:
1482                 return E1000_TEST_LEN;
1483         case ETH_SS_STATS:
1484                 return E1000_STATS_LEN;
1485         default:
1486                 return -EOPNOTSUPP;
1487         }
1488 }
1489
1490 static void e1000_diag_test(struct net_device *netdev,
1491                             struct ethtool_test *eth_test, u64 *data)
1492 {
1493         struct e1000_adapter *adapter = netdev_priv(netdev);
1494         struct e1000_hw *hw = &adapter->hw;
1495         bool if_running = netif_running(netdev);
1496
1497         set_bit(__E1000_TESTING, &adapter->flags);
1498         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1499                 /* Offline tests */
1500
1501                 /* save speed, duplex, autoneg settings */
1502                 u16 autoneg_advertised = hw->autoneg_advertised;
1503                 u8 forced_speed_duplex = hw->forced_speed_duplex;
1504                 u8 autoneg = hw->autoneg;
1505
1506                 e_info(hw, "offline testing starting\n");
1507
1508                 /* Link test performed before hardware reset so autoneg doesn't
1509                  * interfere with test result */
1510                 if (e1000_link_test(adapter, &data[4]))
1511                         eth_test->flags |= ETH_TEST_FL_FAILED;
1512
1513                 if (if_running)
1514                         /* indicate we're in test mode */
1515                         dev_close(netdev);
1516                 else
1517                         e1000_reset(adapter);
1518
1519                 if (e1000_reg_test(adapter, &data[0]))
1520                         eth_test->flags |= ETH_TEST_FL_FAILED;
1521
1522                 e1000_reset(adapter);
1523                 if (e1000_eeprom_test(adapter, &data[1]))
1524                         eth_test->flags |= ETH_TEST_FL_FAILED;
1525
1526                 e1000_reset(adapter);
1527                 if (e1000_intr_test(adapter, &data[2]))
1528                         eth_test->flags |= ETH_TEST_FL_FAILED;
1529
1530                 e1000_reset(adapter);
1531                 /* make sure the phy is powered up */
1532                 e1000_power_up_phy(adapter);
1533                 if (e1000_loopback_test(adapter, &data[3]))
1534                         eth_test->flags |= ETH_TEST_FL_FAILED;
1535
1536                 /* restore speed, duplex, autoneg settings */
1537                 hw->autoneg_advertised = autoneg_advertised;
1538                 hw->forced_speed_duplex = forced_speed_duplex;
1539                 hw->autoneg = autoneg;
1540
1541                 e1000_reset(adapter);
1542                 clear_bit(__E1000_TESTING, &adapter->flags);
1543                 if (if_running)
1544                         dev_open(netdev);
1545         } else {
1546                 e_info(hw, "online testing starting\n");
1547                 /* Online tests */
1548                 if (e1000_link_test(adapter, &data[4]))
1549                         eth_test->flags |= ETH_TEST_FL_FAILED;
1550
1551                 /* Online tests aren't run; pass by default */
1552                 data[0] = 0;
1553                 data[1] = 0;
1554                 data[2] = 0;
1555                 data[3] = 0;
1556
1557                 clear_bit(__E1000_TESTING, &adapter->flags);
1558         }
1559         msleep_interruptible(4 * 1000);
1560 }
1561
1562 static int e1000_wol_exclusion(struct e1000_adapter *adapter,
1563                                struct ethtool_wolinfo *wol)
1564 {
1565         struct e1000_hw *hw = &adapter->hw;
1566         int retval = 1; /* fail by default */
1567
1568         switch (hw->device_id) {
1569         case E1000_DEV_ID_82542:
1570         case E1000_DEV_ID_82543GC_FIBER:
1571         case E1000_DEV_ID_82543GC_COPPER:
1572         case E1000_DEV_ID_82544EI_FIBER:
1573         case E1000_DEV_ID_82546EB_QUAD_COPPER:
1574         case E1000_DEV_ID_82545EM_FIBER:
1575         case E1000_DEV_ID_82545EM_COPPER:
1576         case E1000_DEV_ID_82546GB_QUAD_COPPER:
1577         case E1000_DEV_ID_82546GB_PCIE:
1578                 /* these don't support WoL at all */
1579                 wol->supported = 0;
1580                 break;
1581         case E1000_DEV_ID_82546EB_FIBER:
1582         case E1000_DEV_ID_82546GB_FIBER:
1583                 /* Wake events not supported on port B */
1584                 if (er32(STATUS) & E1000_STATUS_FUNC_1) {
1585                         wol->supported = 0;
1586                         break;
1587                 }
1588                 /* return success for non excluded adapter ports */
1589                 retval = 0;
1590                 break;
1591         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1592                 /* quad port adapters only support WoL on port A */
1593                 if (!adapter->quad_port_a) {
1594                         wol->supported = 0;
1595                         break;
1596                 }
1597                 /* return success for non excluded adapter ports */
1598                 retval = 0;
1599                 break;
1600         default:
1601                 /* dual port cards only support WoL on port A from now on
1602                  * unless it was enabled in the eeprom for port B
1603                  * so exclude FUNC_1 ports from having WoL enabled */
1604                 if (er32(STATUS) & E1000_STATUS_FUNC_1 &&
1605                     !adapter->eeprom_wol) {
1606                         wol->supported = 0;
1607                         break;
1608                 }
1609
1610                 retval = 0;
1611         }
1612
1613         return retval;
1614 }
1615
1616 static void e1000_get_wol(struct net_device *netdev,
1617                           struct ethtool_wolinfo *wol)
1618 {
1619         struct e1000_adapter *adapter = netdev_priv(netdev);
1620         struct e1000_hw *hw = &adapter->hw;
1621
1622         wol->supported = WAKE_UCAST | WAKE_MCAST |
1623                          WAKE_BCAST | WAKE_MAGIC;
1624         wol->wolopts = 0;
1625
1626         /* this function will set ->supported = 0 and return 1 if wol is not
1627          * supported by this hardware */
1628         if (e1000_wol_exclusion(adapter, wol) ||
1629             !device_can_wakeup(&adapter->pdev->dev))
1630                 return;
1631
1632         /* apply any specific unsupported masks here */
1633         switch (hw->device_id) {
1634         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1635                 /* KSP3 does not suppport UCAST wake-ups */
1636                 wol->supported &= ~WAKE_UCAST;
1637
1638                 if (adapter->wol & E1000_WUFC_EX)
1639                         e_err(drv, "Interface does not support directed "
1640                               "(unicast) frame wake-up packets\n");
1641                 break;
1642         default:
1643                 break;
1644         }
1645
1646         if (adapter->wol & E1000_WUFC_EX)
1647                 wol->wolopts |= WAKE_UCAST;
1648         if (adapter->wol & E1000_WUFC_MC)
1649                 wol->wolopts |= WAKE_MCAST;
1650         if (adapter->wol & E1000_WUFC_BC)
1651                 wol->wolopts |= WAKE_BCAST;
1652         if (adapter->wol & E1000_WUFC_MAG)
1653                 wol->wolopts |= WAKE_MAGIC;
1654 }
1655
1656 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1657 {
1658         struct e1000_adapter *adapter = netdev_priv(netdev);
1659         struct e1000_hw *hw = &adapter->hw;
1660
1661         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
1662                 return -EOPNOTSUPP;
1663
1664         if (e1000_wol_exclusion(adapter, wol) ||
1665             !device_can_wakeup(&adapter->pdev->dev))
1666                 return wol->wolopts ? -EOPNOTSUPP : 0;
1667
1668         switch (hw->device_id) {
1669         case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
1670                 if (wol->wolopts & WAKE_UCAST) {
1671                         e_err(drv, "Interface does not support directed "
1672                               "(unicast) frame wake-up packets\n");
1673                         return -EOPNOTSUPP;
1674                 }
1675                 break;
1676         default:
1677                 break;
1678         }
1679
1680         /* these settings will always override what we currently have */
1681         adapter->wol = 0;
1682
1683         if (wol->wolopts & WAKE_UCAST)
1684                 adapter->wol |= E1000_WUFC_EX;
1685         if (wol->wolopts & WAKE_MCAST)
1686                 adapter->wol |= E1000_WUFC_MC;
1687         if (wol->wolopts & WAKE_BCAST)
1688                 adapter->wol |= E1000_WUFC_BC;
1689         if (wol->wolopts & WAKE_MAGIC)
1690                 adapter->wol |= E1000_WUFC_MAG;
1691
1692         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1693
1694         return 0;
1695 }
1696
1697 static int e1000_set_phys_id(struct net_device *netdev,
1698                              enum ethtool_phys_id_state state)
1699 {
1700         struct e1000_adapter *adapter = netdev_priv(netdev);
1701         struct e1000_hw *hw = &adapter->hw;
1702
1703         switch (state) {
1704         case ETHTOOL_ID_ACTIVE:
1705                 e1000_setup_led(hw);
1706                 return 2;
1707
1708         case ETHTOOL_ID_ON:
1709                 e1000_led_on(hw);
1710                 break;
1711
1712         case ETHTOOL_ID_OFF:
1713                 e1000_led_off(hw);
1714                 break;
1715
1716         case ETHTOOL_ID_INACTIVE:
1717                 e1000_cleanup_led(hw);
1718         }
1719
1720         return 0;
1721 }
1722
1723 static int e1000_get_coalesce(struct net_device *netdev,
1724                               struct ethtool_coalesce *ec)
1725 {
1726         struct e1000_adapter *adapter = netdev_priv(netdev);
1727
1728         if (adapter->hw.mac_type < e1000_82545)
1729                 return -EOPNOTSUPP;
1730
1731         if (adapter->itr_setting <= 4)
1732                 ec->rx_coalesce_usecs = adapter->itr_setting;
1733         else
1734                 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1735
1736         return 0;
1737 }
1738
1739 static int e1000_set_coalesce(struct net_device *netdev,
1740                               struct ethtool_coalesce *ec)
1741 {
1742         struct e1000_adapter *adapter = netdev_priv(netdev);
1743         struct e1000_hw *hw = &adapter->hw;
1744
1745         if (hw->mac_type < e1000_82545)
1746                 return -EOPNOTSUPP;
1747
1748         if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1749             ((ec->rx_coalesce_usecs > 4) &&
1750              (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1751             (ec->rx_coalesce_usecs == 2))
1752                 return -EINVAL;
1753
1754         if (ec->rx_coalesce_usecs == 4) {
1755                 adapter->itr = adapter->itr_setting = 4;
1756         } else if (ec->rx_coalesce_usecs <= 3) {
1757                 adapter->itr = 20000;
1758                 adapter->itr_setting = ec->rx_coalesce_usecs;
1759         } else {
1760                 adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1761                 adapter->itr_setting = adapter->itr & ~3;
1762         }
1763
1764         if (adapter->itr_setting != 0)
1765                 ew32(ITR, 1000000000 / (adapter->itr * 256));
1766         else
1767                 ew32(ITR, 0);
1768
1769         return 0;
1770 }
1771
1772 static int e1000_nway_reset(struct net_device *netdev)
1773 {
1774         struct e1000_adapter *adapter = netdev_priv(netdev);
1775         if (netif_running(netdev))
1776                 e1000_reinit_locked(adapter);
1777         return 0;
1778 }
1779
1780 static void e1000_get_ethtool_stats(struct net_device *netdev,
1781                                     struct ethtool_stats *stats, u64 *data)
1782 {
1783         struct e1000_adapter *adapter = netdev_priv(netdev);
1784         int i;
1785         char *p = NULL;
1786
1787         e1000_update_stats(adapter);
1788         for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1789                 switch (e1000_gstrings_stats[i].type) {
1790                 case NETDEV_STATS:
1791                         p = (char *) netdev +
1792                                         e1000_gstrings_stats[i].stat_offset;
1793                         break;
1794                 case E1000_STATS:
1795                         p = (char *) adapter +
1796                                         e1000_gstrings_stats[i].stat_offset;
1797                         break;
1798                 }
1799
1800                 data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1801                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1802         }
1803 /*      BUG_ON(i != E1000_STATS_LEN); */
1804 }
1805
1806 static void e1000_get_strings(struct net_device *netdev, u32 stringset,
1807                               u8 *data)
1808 {
1809         u8 *p = data;
1810         int i;
1811
1812         switch (stringset) {
1813         case ETH_SS_TEST:
1814                 memcpy(data, *e1000_gstrings_test,
1815                         sizeof(e1000_gstrings_test));
1816                 break;
1817         case ETH_SS_STATS:
1818                 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1819                         memcpy(p, e1000_gstrings_stats[i].stat_string,
1820                                ETH_GSTRING_LEN);
1821                         p += ETH_GSTRING_LEN;
1822                 }
1823 /*              BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
1824                 break;
1825         }
1826 }
1827
1828 static const struct ethtool_ops e1000_ethtool_ops = {
1829         .get_settings           = e1000_get_settings,
1830         .set_settings           = e1000_set_settings,
1831         .get_drvinfo            = e1000_get_drvinfo,
1832         .get_regs_len           = e1000_get_regs_len,
1833         .get_regs               = e1000_get_regs,
1834         .get_wol                = e1000_get_wol,
1835         .set_wol                = e1000_set_wol,
1836         .get_msglevel           = e1000_get_msglevel,
1837         .set_msglevel           = e1000_set_msglevel,
1838         .nway_reset             = e1000_nway_reset,
1839         .get_link               = e1000_get_link,
1840         .get_eeprom_len         = e1000_get_eeprom_len,
1841         .get_eeprom             = e1000_get_eeprom,
1842         .set_eeprom             = e1000_set_eeprom,
1843         .get_ringparam          = e1000_get_ringparam,
1844         .set_ringparam          = e1000_set_ringparam,
1845         .get_pauseparam         = e1000_get_pauseparam,
1846         .set_pauseparam         = e1000_set_pauseparam,
1847         .self_test              = e1000_diag_test,
1848         .get_strings            = e1000_get_strings,
1849         .set_phys_id            = e1000_set_phys_id,
1850         .get_ethtool_stats      = e1000_get_ethtool_stats,
1851         .get_sset_count         = e1000_get_sset_count,
1852         .get_coalesce           = e1000_get_coalesce,
1853         .set_coalesce           = e1000_set_coalesce,
1854 };
1855
1856 void e1000_set_ethtool_ops(struct net_device *netdev)
1857 {
1858         SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
1859 }