linux/drivers/net/e1000e/ethtool.c
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   1/*******************************************************************************
   2
   3  Intel PRO/1000 Linux driver
   4  Copyright(c) 1999 - 2008 Intel Corporation.
   5
   6  This program is free software; you can redistribute it and/or modify it
   7  under the terms and conditions of the GNU General Public License,
   8  version 2, as published by the Free Software Foundation.
   9
  10  This program is distributed in the hope it will be useful, but WITHOUT
  11  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  more details.
  14
  15  You should have received a copy of the GNU General Public License along with
  16  this program; if not, write to the Free Software Foundation, Inc.,
  17  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19  The full GNU General Public License is included in this distribution in
  20  the file called "COPYING".
  21
  22  Contact Information:
  23  Linux NICS <linux.nics@intel.com>
  24  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27*******************************************************************************/
  28
  29/* ethtool support for e1000 */
  30
  31#include <linux/netdevice.h>
  32#include <linux/ethtool.h>
  33#include <linux/pci.h>
  34#include <linux/delay.h>
  35
  36#include "e1000.h"
  37
  38struct e1000_stats {
  39        char stat_string[ETH_GSTRING_LEN];
  40        int sizeof_stat;
  41        int stat_offset;
  42};
  43
  44#define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \
  45                      offsetof(struct e1000_adapter, m)
  46static const struct e1000_stats e1000_gstrings_stats[] = {
  47        { "rx_packets", E1000_STAT(stats.gprc) },
  48        { "tx_packets", E1000_STAT(stats.gptc) },
  49        { "rx_bytes", E1000_STAT(stats.gorc) },
  50        { "tx_bytes", E1000_STAT(stats.gotc) },
  51        { "rx_broadcast", E1000_STAT(stats.bprc) },
  52        { "tx_broadcast", E1000_STAT(stats.bptc) },
  53        { "rx_multicast", E1000_STAT(stats.mprc) },
  54        { "tx_multicast", E1000_STAT(stats.mptc) },
  55        { "rx_errors", E1000_STAT(net_stats.rx_errors) },
  56        { "tx_errors", E1000_STAT(net_stats.tx_errors) },
  57        { "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
  58        { "multicast", E1000_STAT(stats.mprc) },
  59        { "collisions", E1000_STAT(stats.colc) },
  60        { "rx_length_errors", E1000_STAT(net_stats.rx_length_errors) },
  61        { "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
  62        { "rx_crc_errors", E1000_STAT(stats.crcerrs) },
  63        { "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
  64        { "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
  65        { "rx_missed_errors", E1000_STAT(stats.mpc) },
  66        { "tx_aborted_errors", E1000_STAT(stats.ecol) },
  67        { "tx_carrier_errors", E1000_STAT(stats.tncrs) },
  68        { "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
  69        { "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
  70        { "tx_window_errors", E1000_STAT(stats.latecol) },
  71        { "tx_abort_late_coll", E1000_STAT(stats.latecol) },
  72        { "tx_deferred_ok", E1000_STAT(stats.dc) },
  73        { "tx_single_coll_ok", E1000_STAT(stats.scc) },
  74        { "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
  75        { "tx_timeout_count", E1000_STAT(tx_timeout_count) },
  76        { "tx_restart_queue", E1000_STAT(restart_queue) },
  77        { "rx_long_length_errors", E1000_STAT(stats.roc) },
  78        { "rx_short_length_errors", E1000_STAT(stats.ruc) },
  79        { "rx_align_errors", E1000_STAT(stats.algnerrc) },
  80        { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
  81        { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
  82        { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
  83        { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
  84        { "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
  85        { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
  86        { "rx_long_byte_count", E1000_STAT(stats.gorc) },
  87        { "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
  88        { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
  89        { "rx_header_split", E1000_STAT(rx_hdr_split) },
  90        { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
  91        { "tx_smbus", E1000_STAT(stats.mgptc) },
  92        { "rx_smbus", E1000_STAT(stats.mgprc) },
  93        { "dropped_smbus", E1000_STAT(stats.mgpdc) },
  94        { "rx_dma_failed", E1000_STAT(rx_dma_failed) },
  95        { "tx_dma_failed", E1000_STAT(tx_dma_failed) },
  96};
  97
  98#define E1000_GLOBAL_STATS_LEN  ARRAY_SIZE(e1000_gstrings_stats)
  99#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
 100static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
 101        "Register test  (offline)", "Eeprom test    (offline)",
 102        "Interrupt test (offline)", "Loopback test  (offline)",
 103        "Link test   (on/offline)"
 104};
 105#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)
 106
 107static int e1000_get_settings(struct net_device *netdev,
 108                              struct ethtool_cmd *ecmd)
 109{
 110        struct e1000_adapter *adapter = netdev_priv(netdev);
 111        struct e1000_hw *hw = &adapter->hw;
 112        u32 status;
 113
 114        if (hw->phy.media_type == e1000_media_type_copper) {
 115
 116                ecmd->supported = (SUPPORTED_10baseT_Half |
 117                                   SUPPORTED_10baseT_Full |
 118                                   SUPPORTED_100baseT_Half |
 119                                   SUPPORTED_100baseT_Full |
 120                                   SUPPORTED_1000baseT_Full |
 121                                   SUPPORTED_Autoneg |
 122                                   SUPPORTED_TP);
 123                if (hw->phy.type == e1000_phy_ife)
 124                        ecmd->supported &= ~SUPPORTED_1000baseT_Full;
 125                ecmd->advertising = ADVERTISED_TP;
 126
 127                if (hw->mac.autoneg == 1) {
 128                        ecmd->advertising |= ADVERTISED_Autoneg;
 129                        /* the e1000 autoneg seems to match ethtool nicely */
 130                        ecmd->advertising |= hw->phy.autoneg_advertised;
 131                }
 132
 133                ecmd->port = PORT_TP;
 134                ecmd->phy_address = hw->phy.addr;
 135                ecmd->transceiver = XCVR_INTERNAL;
 136
 137        } else {
 138                ecmd->supported   = (SUPPORTED_1000baseT_Full |
 139                                     SUPPORTED_FIBRE |
 140                                     SUPPORTED_Autoneg);
 141
 142                ecmd->advertising = (ADVERTISED_1000baseT_Full |
 143                                     ADVERTISED_FIBRE |
 144                                     ADVERTISED_Autoneg);
 145
 146                ecmd->port = PORT_FIBRE;
 147                ecmd->transceiver = XCVR_EXTERNAL;
 148        }
 149
 150        status = er32(STATUS);
 151        if (status & E1000_STATUS_LU) {
 152                if (status & E1000_STATUS_SPEED_1000)
 153                        ecmd->speed = 1000;
 154                else if (status & E1000_STATUS_SPEED_100)
 155                        ecmd->speed = 100;
 156                else
 157                        ecmd->speed = 10;
 158
 159                if (status & E1000_STATUS_FD)
 160                        ecmd->duplex = DUPLEX_FULL;
 161                else
 162                        ecmd->duplex = DUPLEX_HALF;
 163        } else {
 164                ecmd->speed = -1;
 165                ecmd->duplex = -1;
 166        }
 167
 168        ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||
 169                         hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
 170
 171        /* MDI-X => 2; MDI =>1; Invalid =>0 */
 172        if ((hw->phy.media_type == e1000_media_type_copper) &&
 173            !hw->mac.get_link_status)
 174                ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
 175                                                      ETH_TP_MDI;
 176        else
 177                ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 178
 179        return 0;
 180}
 181
 182static u32 e1000_get_link(struct net_device *netdev)
 183{
 184        struct e1000_adapter *adapter = netdev_priv(netdev);
 185
 186        return e1000_has_link(adapter);
 187}
 188
 189static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
 190{
 191        struct e1000_mac_info *mac = &adapter->hw.mac;
 192
 193        mac->autoneg = 0;
 194
 195        /* Fiber NICs only allow 1000 gbps Full duplex */
 196        if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&
 197                spddplx != (SPEED_1000 + DUPLEX_FULL)) {
 198                e_err("Unsupported Speed/Duplex configuration\n");
 199                return -EINVAL;
 200        }
 201
 202        switch (spddplx) {
 203        case SPEED_10 + DUPLEX_HALF:
 204                mac->forced_speed_duplex = ADVERTISE_10_HALF;
 205                break;
 206        case SPEED_10 + DUPLEX_FULL:
 207                mac->forced_speed_duplex = ADVERTISE_10_FULL;
 208                break;
 209        case SPEED_100 + DUPLEX_HALF:
 210                mac->forced_speed_duplex = ADVERTISE_100_HALF;
 211                break;
 212        case SPEED_100 + DUPLEX_FULL:
 213                mac->forced_speed_duplex = ADVERTISE_100_FULL;
 214                break;
 215        case SPEED_1000 + DUPLEX_FULL:
 216                mac->autoneg = 1;
 217                adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 218                break;
 219        case SPEED_1000 + DUPLEX_HALF: /* not supported */
 220        default:
 221                e_err("Unsupported Speed/Duplex configuration\n");
 222                return -EINVAL;
 223        }
 224        return 0;
 225}
 226
 227static int e1000_set_settings(struct net_device *netdev,
 228                              struct ethtool_cmd *ecmd)
 229{
 230        struct e1000_adapter *adapter = netdev_priv(netdev);
 231        struct e1000_hw *hw = &adapter->hw;
 232
 233        /*
 234         * When SoL/IDER sessions are active, autoneg/speed/duplex
 235         * cannot be changed
 236         */
 237        if (e1000_check_reset_block(hw)) {
 238                e_err("Cannot change link characteristics when SoL/IDER is "
 239                      "active.\n");
 240                return -EINVAL;
 241        }
 242
 243        while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 244                msleep(1);
 245
 246        if (ecmd->autoneg == AUTONEG_ENABLE) {
 247                hw->mac.autoneg = 1;
 248                if (hw->phy.media_type == e1000_media_type_fiber)
 249                        hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
 250                                                     ADVERTISED_FIBRE |
 251                                                     ADVERTISED_Autoneg;
 252                else
 253                        hw->phy.autoneg_advertised = ecmd->advertising |
 254                                                     ADVERTISED_TP |
 255                                                     ADVERTISED_Autoneg;
 256                ecmd->advertising = hw->phy.autoneg_advertised;
 257                if (adapter->fc_autoneg)
 258                        hw->fc.requested_mode = e1000_fc_default;
 259        } else {
 260                if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
 261                        clear_bit(__E1000_RESETTING, &adapter->state);
 262                        return -EINVAL;
 263                }
 264        }
 265
 266        /* reset the link */
 267
 268        if (netif_running(adapter->netdev)) {
 269                e1000e_down(adapter);
 270                e1000e_up(adapter);
 271        } else {
 272                e1000e_reset(adapter);
 273        }
 274
 275        clear_bit(__E1000_RESETTING, &adapter->state);
 276        return 0;
 277}
 278
 279static void e1000_get_pauseparam(struct net_device *netdev,
 280                                 struct ethtool_pauseparam *pause)
 281{
 282        struct e1000_adapter *adapter = netdev_priv(netdev);
 283        struct e1000_hw *hw = &adapter->hw;
 284
 285        pause->autoneg =
 286                (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 287
 288        if (hw->fc.current_mode == e1000_fc_rx_pause) {
 289                pause->rx_pause = 1;
 290        } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
 291                pause->tx_pause = 1;
 292        } else if (hw->fc.current_mode == e1000_fc_full) {
 293                pause->rx_pause = 1;
 294                pause->tx_pause = 1;
 295        }
 296}
 297
 298static int e1000_set_pauseparam(struct net_device *netdev,
 299                                struct ethtool_pauseparam *pause)
 300{
 301        struct e1000_adapter *adapter = netdev_priv(netdev);
 302        struct e1000_hw *hw = &adapter->hw;
 303        int retval = 0;
 304
 305        adapter->fc_autoneg = pause->autoneg;
 306
 307        while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 308                msleep(1);
 309
 310        if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 311                hw->fc.requested_mode = e1000_fc_default;
 312                if (netif_running(adapter->netdev)) {
 313                        e1000e_down(adapter);
 314                        e1000e_up(adapter);
 315                } else {
 316                        e1000e_reset(adapter);
 317                }
 318        } else {
 319                if (pause->rx_pause && pause->tx_pause)
 320                        hw->fc.requested_mode = e1000_fc_full;
 321                else if (pause->rx_pause && !pause->tx_pause)
 322                        hw->fc.requested_mode = e1000_fc_rx_pause;
 323                else if (!pause->rx_pause && pause->tx_pause)
 324                        hw->fc.requested_mode = e1000_fc_tx_pause;
 325                else if (!pause->rx_pause && !pause->tx_pause)
 326                        hw->fc.requested_mode = e1000_fc_none;
 327
 328                hw->fc.current_mode = hw->fc.requested_mode;
 329
 330                if (hw->phy.media_type == e1000_media_type_fiber) {
 331                        retval = hw->mac.ops.setup_link(hw);
 332                        /* implicit goto out */
 333                } else {
 334                        retval = e1000e_force_mac_fc(hw);
 335                        if (retval)
 336                                goto out;
 337                        e1000e_set_fc_watermarks(hw);
 338                }
 339        }
 340
 341out:
 342        clear_bit(__E1000_RESETTING, &adapter->state);
 343        return retval;
 344}
 345
 346static u32 e1000_get_rx_csum(struct net_device *netdev)
 347{
 348        struct e1000_adapter *adapter = netdev_priv(netdev);
 349        return (adapter->flags & FLAG_RX_CSUM_ENABLED);
 350}
 351
 352static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
 353{
 354        struct e1000_adapter *adapter = netdev_priv(netdev);
 355
 356        if (data)
 357                adapter->flags |= FLAG_RX_CSUM_ENABLED;
 358        else
 359                adapter->flags &= ~FLAG_RX_CSUM_ENABLED;
 360
 361        if (netif_running(netdev))
 362                e1000e_reinit_locked(adapter);
 363        else
 364                e1000e_reset(adapter);
 365        return 0;
 366}
 367
 368static u32 e1000_get_tx_csum(struct net_device *netdev)
 369{
 370        return ((netdev->features & NETIF_F_HW_CSUM) != 0);
 371}
 372
 373static int e1000_set_tx_csum(struct net_device *netdev, u32 data)
 374{
 375        if (data)
 376                netdev->features |= NETIF_F_HW_CSUM;
 377        else
 378                netdev->features &= ~NETIF_F_HW_CSUM;
 379
 380        return 0;
 381}
 382
 383static int e1000_set_tso(struct net_device *netdev, u32 data)
 384{
 385        struct e1000_adapter *adapter = netdev_priv(netdev);
 386
 387        if (data) {
 388                netdev->features |= NETIF_F_TSO;
 389                netdev->features |= NETIF_F_TSO6;
 390        } else {
 391                netdev->features &= ~NETIF_F_TSO;
 392                netdev->features &= ~NETIF_F_TSO6;
 393        }
 394
 395        e_info("TSO is %s\n", data ? "Enabled" : "Disabled");
 396        adapter->flags |= FLAG_TSO_FORCE;
 397        return 0;
 398}
 399
 400static u32 e1000_get_msglevel(struct net_device *netdev)
 401{
 402        struct e1000_adapter *adapter = netdev_priv(netdev);
 403        return adapter->msg_enable;
 404}
 405
 406static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 407{
 408        struct e1000_adapter *adapter = netdev_priv(netdev);
 409        adapter->msg_enable = data;
 410}
 411
 412static int e1000_get_regs_len(struct net_device *netdev)
 413{
 414#define E1000_REGS_LEN 32 /* overestimate */
 415        return E1000_REGS_LEN * sizeof(u32);
 416}
 417
 418static void e1000_get_regs(struct net_device *netdev,
 419                           struct ethtool_regs *regs, void *p)
 420{
 421        struct e1000_adapter *adapter = netdev_priv(netdev);
 422        struct e1000_hw *hw = &adapter->hw;
 423        u32 *regs_buff = p;
 424        u16 phy_data;
 425        u8 revision_id;
 426
 427        memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 428
 429        pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);
 430
 431        regs->version = (1 << 24) | (revision_id << 16) | adapter->pdev->device;
 432
 433        regs_buff[0]  = er32(CTRL);
 434        regs_buff[1]  = er32(STATUS);
 435
 436        regs_buff[2]  = er32(RCTL);
 437        regs_buff[3]  = er32(RDLEN);
 438        regs_buff[4]  = er32(RDH);
 439        regs_buff[5]  = er32(RDT);
 440        regs_buff[6]  = er32(RDTR);
 441
 442        regs_buff[7]  = er32(TCTL);
 443        regs_buff[8]  = er32(TDLEN);
 444        regs_buff[9]  = er32(TDH);
 445        regs_buff[10] = er32(TDT);
 446        regs_buff[11] = er32(TIDV);
 447
 448        regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
 449
 450        /* ethtool doesn't use anything past this point, so all this
 451         * code is likely legacy junk for apps that may or may not
 452         * exist */
 453        if (hw->phy.type == e1000_phy_m88) {
 454                e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
 455                regs_buff[13] = (u32)phy_data; /* cable length */
 456                regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 457                regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 458                regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 459                e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
 460                regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
 461                regs_buff[18] = regs_buff[13]; /* cable polarity */
 462                regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
 463                regs_buff[20] = regs_buff[17]; /* polarity correction */
 464                /* phy receive errors */
 465                regs_buff[22] = adapter->phy_stats.receive_errors;
 466                regs_buff[23] = regs_buff[13]; /* mdix mode */
 467        }
 468        regs_buff[21] = 0; /* was idle_errors */
 469        e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);
 470        regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
 471        regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
 472}
 473
 474static int e1000_get_eeprom_len(struct net_device *netdev)
 475{
 476        struct e1000_adapter *adapter = netdev_priv(netdev);
 477        return adapter->hw.nvm.word_size * 2;
 478}
 479
 480static int e1000_get_eeprom(struct net_device *netdev,
 481                            struct ethtool_eeprom *eeprom, u8 *bytes)
 482{
 483        struct e1000_adapter *adapter = netdev_priv(netdev);
 484        struct e1000_hw *hw = &adapter->hw;
 485        u16 *eeprom_buff;
 486        int first_word;
 487        int last_word;
 488        int ret_val = 0;
 489        u16 i;
 490
 491        if (eeprom->len == 0)
 492                return -EINVAL;
 493
 494        eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);
 495
 496        first_word = eeprom->offset >> 1;
 497        last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 498
 499        eeprom_buff = kmalloc(sizeof(u16) *
 500                        (last_word - first_word + 1), GFP_KERNEL);
 501        if (!eeprom_buff)
 502                return -ENOMEM;
 503
 504        if (hw->nvm.type == e1000_nvm_eeprom_spi) {
 505                ret_val = e1000_read_nvm(hw, first_word,
 506                                         last_word - first_word + 1,
 507                                         eeprom_buff);
 508        } else {
 509                for (i = 0; i < last_word - first_word + 1; i++) {
 510                        ret_val = e1000_read_nvm(hw, first_word + i, 1,
 511                                                      &eeprom_buff[i]);
 512                        if (ret_val)
 513                                break;
 514                }
 515        }
 516
 517        if (ret_val) {
 518                /* a read error occurred, throw away the result */
 519                memset(eeprom_buff, 0xff, sizeof(eeprom_buff));
 520        } else {
 521                /* Device's eeprom is always little-endian, word addressable */
 522                for (i = 0; i < last_word - first_word + 1; i++)
 523                        le16_to_cpus(&eeprom_buff[i]);
 524        }
 525
 526        memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 527        kfree(eeprom_buff);
 528
 529        return ret_val;
 530}
 531
 532static int e1000_set_eeprom(struct net_device *netdev,
 533                            struct ethtool_eeprom *eeprom, u8 *bytes)
 534{
 535        struct e1000_adapter *adapter = netdev_priv(netdev);
 536        struct e1000_hw *hw = &adapter->hw;
 537        u16 *eeprom_buff;
 538        void *ptr;
 539        int max_len;
 540        int first_word;
 541        int last_word;
 542        int ret_val = 0;
 543        u16 i;
 544
 545        if (eeprom->len == 0)
 546                return -EOPNOTSUPP;
 547
 548        if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16)))
 549                return -EFAULT;
 550
 551        if (adapter->flags & FLAG_READ_ONLY_NVM)
 552                return -EINVAL;
 553
 554        max_len = hw->nvm.word_size * 2;
 555
 556        first_word = eeprom->offset >> 1;
 557        last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 558        eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 559        if (!eeprom_buff)
 560                return -ENOMEM;
 561
 562        ptr = (void *)eeprom_buff;
 563
 564        if (eeprom->offset & 1) {
 565                /* need read/modify/write of first changed EEPROM word */
 566                /* only the second byte of the word is being modified */
 567                ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
 568                ptr++;
 569        }
 570        if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0))
 571                /* need read/modify/write of last changed EEPROM word */
 572                /* only the first byte of the word is being modified */
 573                ret_val = e1000_read_nvm(hw, last_word, 1,
 574                                  &eeprom_buff[last_word - first_word]);
 575
 576        if (ret_val)
 577                goto out;
 578
 579        /* Device's eeprom is always little-endian, word addressable */
 580        for (i = 0; i < last_word - first_word + 1; i++)
 581                le16_to_cpus(&eeprom_buff[i]);
 582
 583        memcpy(ptr, bytes, eeprom->len);
 584
 585        for (i = 0; i < last_word - first_word + 1; i++)
 586                eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 587
 588        ret_val = e1000_write_nvm(hw, first_word,
 589                                  last_word - first_word + 1, eeprom_buff);
 590
 591        if (ret_val)
 592                goto out;
 593
 594        /*
 595         * Update the checksum over the first part of the EEPROM if needed
 596         * and flush shadow RAM for applicable controllers
 597         */
 598        if ((first_word <= NVM_CHECKSUM_REG) ||
 599            (hw->mac.type == e1000_82574) || (hw->mac.type == e1000_82573))
 600                ret_val = e1000e_update_nvm_checksum(hw);
 601
 602out:
 603        kfree(eeprom_buff);
 604        return ret_val;
 605}
 606
 607static void e1000_get_drvinfo(struct net_device *netdev,
 608                              struct ethtool_drvinfo *drvinfo)
 609{
 610        struct e1000_adapter *adapter = netdev_priv(netdev);
 611        char firmware_version[32];
 612
 613        strncpy(drvinfo->driver,  e1000e_driver_name, 32);
 614        strncpy(drvinfo->version, e1000e_driver_version, 32);
 615
 616        /*
 617         * EEPROM image version # is reported as firmware version # for
 618         * PCI-E controllers
 619         */
 620        sprintf(firmware_version, "%d.%d-%d",
 621                (adapter->eeprom_vers & 0xF000) >> 12,
 622                (adapter->eeprom_vers & 0x0FF0) >> 4,
 623                (adapter->eeprom_vers & 0x000F));
 624
 625        strncpy(drvinfo->fw_version, firmware_version, 32);
 626        strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 627        drvinfo->regdump_len = e1000_get_regs_len(netdev);
 628        drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
 629}
 630
 631static void e1000_get_ringparam(struct net_device *netdev,
 632                                struct ethtool_ringparam *ring)
 633{
 634        struct e1000_adapter *adapter = netdev_priv(netdev);
 635        struct e1000_ring *tx_ring = adapter->tx_ring;
 636        struct e1000_ring *rx_ring = adapter->rx_ring;
 637
 638        ring->rx_max_pending = E1000_MAX_RXD;
 639        ring->tx_max_pending = E1000_MAX_TXD;
 640        ring->rx_mini_max_pending = 0;
 641        ring->rx_jumbo_max_pending = 0;
 642        ring->rx_pending = rx_ring->count;
 643        ring->tx_pending = tx_ring->count;
 644        ring->rx_mini_pending = 0;
 645        ring->rx_jumbo_pending = 0;
 646}
 647
 648static int e1000_set_ringparam(struct net_device *netdev,
 649                               struct ethtool_ringparam *ring)
 650{
 651        struct e1000_adapter *adapter = netdev_priv(netdev);
 652        struct e1000_ring *tx_ring, *tx_old;
 653        struct e1000_ring *rx_ring, *rx_old;
 654        int err;
 655
 656        if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 657                return -EINVAL;
 658
 659        while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
 660                msleep(1);
 661
 662        if (netif_running(adapter->netdev))
 663                e1000e_down(adapter);
 664
 665        tx_old = adapter->tx_ring;
 666        rx_old = adapter->rx_ring;
 667
 668        err = -ENOMEM;
 669        tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
 670        if (!tx_ring)
 671                goto err_alloc_tx;
 672        /*
 673         * use a memcpy to save any previously configured
 674         * items like napi structs from having to be
 675         * reinitialized
 676         */
 677        memcpy(tx_ring, tx_old, sizeof(struct e1000_ring));
 678
 679        rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
 680        if (!rx_ring)
 681                goto err_alloc_rx;
 682        memcpy(rx_ring, rx_old, sizeof(struct e1000_ring));
 683
 684        adapter->tx_ring = tx_ring;
 685        adapter->rx_ring = rx_ring;
 686
 687        rx_ring->count = max(ring->rx_pending, (u32)E1000_MIN_RXD);
 688        rx_ring->count = min(rx_ring->count, (u32)(E1000_MAX_RXD));
 689        rx_ring->count = ALIGN(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);
 690
 691        tx_ring->count = max(ring->tx_pending, (u32)E1000_MIN_TXD);
 692        tx_ring->count = min(tx_ring->count, (u32)(E1000_MAX_TXD));
 693        tx_ring->count = ALIGN(tx_ring->count, REQ_TX_DESCRIPTOR_MULTIPLE);
 694
 695        if (netif_running(adapter->netdev)) {
 696                /* Try to get new resources before deleting old */
 697                err = e1000e_setup_rx_resources(adapter);
 698                if (err)
 699                        goto err_setup_rx;
 700                err = e1000e_setup_tx_resources(adapter);
 701                if (err)
 702                        goto err_setup_tx;
 703
 704                /*
 705                 * restore the old in order to free it,
 706                 * then add in the new
 707                 */
 708                adapter->rx_ring = rx_old;
 709                adapter->tx_ring = tx_old;
 710                e1000e_free_rx_resources(adapter);
 711                e1000e_free_tx_resources(adapter);
 712                kfree(tx_old);
 713                kfree(rx_old);
 714                adapter->rx_ring = rx_ring;
 715                adapter->tx_ring = tx_ring;
 716                err = e1000e_up(adapter);
 717                if (err)
 718                        goto err_setup;
 719        }
 720
 721        clear_bit(__E1000_RESETTING, &adapter->state);
 722        return 0;
 723err_setup_tx:
 724        e1000e_free_rx_resources(adapter);
 725err_setup_rx:
 726        adapter->rx_ring = rx_old;
 727        adapter->tx_ring = tx_old;
 728        kfree(rx_ring);
 729err_alloc_rx:
 730        kfree(tx_ring);
 731err_alloc_tx:
 732        e1000e_up(adapter);
 733err_setup:
 734        clear_bit(__E1000_RESETTING, &adapter->state);
 735        return err;
 736}
 737
 738static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data,
 739                             int reg, int offset, u32 mask, u32 write)
 740{
 741        u32 pat, val;
 742        static const u32 test[] =
 743                {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
 744        for (pat = 0; pat < ARRAY_SIZE(test); pat++) {
 745                E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset,
 746                                      (test[pat] & write));
 747                val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset);
 748                if (val != (test[pat] & write & mask)) {
 749                        e_err("pattern test reg %04X failed: got 0x%08X "
 750                              "expected 0x%08X\n", reg + offset, val,
 751                              (test[pat] & write & mask));
 752                        *data = reg;
 753                        return 1;
 754                }
 755        }
 756        return 0;
 757}
 758
 759static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data,
 760                              int reg, u32 mask, u32 write)
 761{
 762        u32 val;
 763        __ew32(&adapter->hw, reg, write & mask);
 764        val = __er32(&adapter->hw, reg);
 765        if ((write & mask) != (val & mask)) {
 766                e_err("set/check reg %04X test failed: got 0x%08X "
 767                      "expected 0x%08X\n", reg, (val & mask), (write & mask));
 768                *data = reg;
 769                return 1;
 770        }
 771        return 0;
 772}
 773#define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write)                       \
 774        do {                                                                   \
 775                if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \
 776                        return 1;                                              \
 777        } while (0)
 778#define REG_PATTERN_TEST(reg, mask, write)                                     \
 779        REG_PATTERN_TEST_ARRAY(reg, 0, mask, write)
 780
 781#define REG_SET_AND_CHECK(reg, mask, write)                                    \
 782        do {                                                                   \
 783                if (reg_set_and_check(adapter, data, reg, mask, write))        \
 784                        return 1;                                              \
 785        } while (0)
 786
 787static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 788{
 789        struct e1000_hw *hw = &adapter->hw;
 790        struct e1000_mac_info *mac = &adapter->hw.mac;
 791        u32 value;
 792        u32 before;
 793        u32 after;
 794        u32 i;
 795        u32 toggle;
 796        u32 mask;
 797
 798        /*
 799         * The status register is Read Only, so a write should fail.
 800         * Some bits that get toggled are ignored.
 801         */
 802        switch (mac->type) {
 803        /* there are several bits on newer hardware that are r/w */
 804        case e1000_82571:
 805        case e1000_82572:
 806        case e1000_80003es2lan:
 807                toggle = 0x7FFFF3FF;
 808                break;
 809        default:
 810                toggle = 0x7FFFF033;
 811                break;
 812        }
 813
 814        before = er32(STATUS);
 815        value = (er32(STATUS) & toggle);
 816        ew32(STATUS, toggle);
 817        after = er32(STATUS) & toggle;
 818        if (value != after) {
 819                e_err("failed STATUS register test got: 0x%08X expected: "
 820                      "0x%08X\n", after, value);
 821                *data = 1;
 822                return 1;
 823        }
 824        /* restore previous status */
 825        ew32(STATUS, before);
 826
 827        if (!(adapter->flags & FLAG_IS_ICH)) {
 828                REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
 829                REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
 830                REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
 831                REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
 832        }
 833
 834        REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
 835        REG_PATTERN_TEST(E1000_RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 836        REG_PATTERN_TEST(E1000_RDLEN, 0x000FFF80, 0x000FFFFF);
 837        REG_PATTERN_TEST(E1000_RDH, 0x0000FFFF, 0x0000FFFF);
 838        REG_PATTERN_TEST(E1000_RDT, 0x0000FFFF, 0x0000FFFF);
 839        REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
 840        REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
 841        REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
 842        REG_PATTERN_TEST(E1000_TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
 843        REG_PATTERN_TEST(E1000_TDLEN, 0x000FFF80, 0x000FFFFF);
 844
 845        REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);
 846
 847        before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE);
 848        REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
 849        REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);
 850
 851        REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
 852        REG_PATTERN_TEST(E1000_RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 853        if (!(adapter->flags & FLAG_IS_ICH))
 854                REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
 855        REG_PATTERN_TEST(E1000_TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
 856        REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
 857        mask = 0x8003FFFF;
 858        switch (mac->type) {
 859        case e1000_ich10lan:
 860        case e1000_pchlan:
 861                mask |= (1 << 18);
 862                break;
 863        default:
 864                break;
 865        }
 866        for (i = 0; i < mac->rar_entry_count; i++)
 867                REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1),
 868                                       mask, 0xFFFFFFFF);
 869
 870        for (i = 0; i < mac->mta_reg_count; i++)
 871                REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);
 872
 873        *data = 0;
 874        return 0;
 875}
 876
 877static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
 878{
 879        u16 temp;
 880        u16 checksum = 0;
 881        u16 i;
 882
 883        *data = 0;
 884        /* Read and add up the contents of the EEPROM */
 885        for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
 886                if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
 887                        *data = 1;
 888                        return *data;
 889                }
 890                checksum += temp;
 891        }
 892
 893        /* If Checksum is not Correct return error else test passed */
 894        if ((checksum != (u16) NVM_SUM) && !(*data))
 895                *data = 2;
 896
 897        return *data;
 898}
 899
 900static irqreturn_t e1000_test_intr(int irq, void *data)
 901{
 902        struct net_device *netdev = (struct net_device *) data;
 903        struct e1000_adapter *adapter = netdev_priv(netdev);
 904        struct e1000_hw *hw = &adapter->hw;
 905
 906        adapter->test_icr |= er32(ICR);
 907
 908        return IRQ_HANDLED;
 909}
 910
 911static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 912{
 913        struct net_device *netdev = adapter->netdev;
 914        struct e1000_hw *hw = &adapter->hw;
 915        u32 mask;
 916        u32 shared_int = 1;
 917        u32 irq = adapter->pdev->irq;
 918        int i;
 919        int ret_val = 0;
 920        int int_mode = E1000E_INT_MODE_LEGACY;
 921
 922        *data = 0;
 923
 924        /* NOTE: we don't test MSI/MSI-X interrupts here, yet */
 925        if (adapter->int_mode == E1000E_INT_MODE_MSIX) {
 926                int_mode = adapter->int_mode;
 927                e1000e_reset_interrupt_capability(adapter);
 928                adapter->int_mode = E1000E_INT_MODE_LEGACY;
 929                e1000e_set_interrupt_capability(adapter);
 930        }
 931        /* Hook up test interrupt handler just for this test */
 932        if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
 933                         netdev)) {
 934                shared_int = 0;
 935        } else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
 936                 netdev->name, netdev)) {
 937                *data = 1;
 938                ret_val = -1;
 939                goto out;
 940        }
 941        e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared"));
 942
 943        /* Disable all the interrupts */
 944        ew32(IMC, 0xFFFFFFFF);
 945        msleep(10);
 946
 947        /* Test each interrupt */
 948        for (i = 0; i < 10; i++) {
 949                /* Interrupt to test */
 950                mask = 1 << i;
 951
 952                if (adapter->flags & FLAG_IS_ICH) {
 953                        switch (mask) {
 954                        case E1000_ICR_RXSEQ:
 955                                continue;
 956                        case 0x00000100:
 957                                if (adapter->hw.mac.type == e1000_ich8lan ||
 958                                    adapter->hw.mac.type == e1000_ich9lan)
 959                                        continue;
 960                                break;
 961                        default:
 962                                break;
 963                        }
 964                }
 965
 966                if (!shared_int) {
 967                        /*
 968                         * Disable the interrupt to be reported in
 969                         * the cause register and then force the same
 970                         * interrupt and see if one gets posted.  If
 971                         * an interrupt was posted to the bus, the
 972                         * test failed.
 973                         */
 974                        adapter->test_icr = 0;
 975                        ew32(IMC, mask);
 976                        ew32(ICS, mask);
 977                        msleep(10);
 978
 979                        if (adapter->test_icr & mask) {
 980                                *data = 3;
 981                                break;
 982                        }
 983                }
 984
 985                /*
 986                 * Enable the interrupt to be reported in
 987                 * the cause register and then force the same
 988                 * interrupt and see if one gets posted.  If
 989                 * an interrupt was not posted to the bus, the
 990                 * test failed.
 991                 */
 992                adapter->test_icr = 0;
 993                ew32(IMS, mask);
 994                ew32(ICS, mask);
 995                msleep(10);
 996
 997                if (!(adapter->test_icr & mask)) {
 998                        *data = 4;
 999                        break;
1000                }
1001
1002                if (!shared_int) {
1003                        /*
1004                         * Disable the other interrupts to be reported in
1005                         * the cause register and then force the other
1006                         * interrupts and see if any get posted.  If
1007                         * an interrupt was posted to the bus, the
1008                         * test failed.
1009                         */
1010                        adapter->test_icr = 0;
1011                        ew32(IMC, ~mask & 0x00007FFF);
1012                        ew32(ICS, ~mask & 0x00007FFF);
1013                        msleep(10);
1014
1015                        if (adapter->test_icr) {
1016                                *data = 5;
1017                                break;
1018                        }
1019                }
1020        }
1021
1022        /* Disable all the interrupts */
1023        ew32(IMC, 0xFFFFFFFF);
1024        msleep(10);
1025
1026        /* Unhook test interrupt handler */
1027        free_irq(irq, netdev);
1028
1029out:
1030        if (int_mode == E1000E_INT_MODE_MSIX) {
1031                e1000e_reset_interrupt_capability(adapter);
1032                adapter->int_mode = int_mode;
1033                e1000e_set_interrupt_capability(adapter);
1034        }
1035
1036        return ret_val;
1037}
1038
1039static void e1000_free_desc_rings(struct e1000_adapter *adapter)
1040{
1041        struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1042        struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1043        struct pci_dev *pdev = adapter->pdev;
1044        int i;
1045
1046        if (tx_ring->desc && tx_ring->buffer_info) {
1047                for (i = 0; i < tx_ring->count; i++) {
1048                        if (tx_ring->buffer_info[i].dma)
1049                                pci_unmap_single(pdev,
1050                                        tx_ring->buffer_info[i].dma,
1051                                        tx_ring->buffer_info[i].length,
1052                                        PCI_DMA_TODEVICE);
1053                        if (tx_ring->buffer_info[i].skb)
1054                                dev_kfree_skb(tx_ring->buffer_info[i].skb);
1055                }
1056        }
1057
1058        if (rx_ring->desc && rx_ring->buffer_info) {
1059                for (i = 0; i < rx_ring->count; i++) {
1060                        if (rx_ring->buffer_info[i].dma)
1061                                pci_unmap_single(pdev,
1062                                        rx_ring->buffer_info[i].dma,
1063                                        2048, PCI_DMA_FROMDEVICE);
1064                        if (rx_ring->buffer_info[i].skb)
1065                                dev_kfree_skb(rx_ring->buffer_info[i].skb);
1066                }
1067        }
1068
1069        if (tx_ring->desc) {
1070                dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
1071                                  tx_ring->dma);
1072                tx_ring->desc = NULL;
1073        }
1074        if (rx_ring->desc) {
1075                dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
1076                                  rx_ring->dma);
1077                rx_ring->desc = NULL;
1078        }
1079
1080        kfree(tx_ring->buffer_info);
1081        tx_ring->buffer_info = NULL;
1082        kfree(rx_ring->buffer_info);
1083        rx_ring->buffer_info = NULL;
1084}
1085
1086static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
1087{
1088        struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1089        struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1090        struct pci_dev *pdev = adapter->pdev;
1091        struct e1000_hw *hw = &adapter->hw;
1092        u32 rctl;
1093        int i;
1094        int ret_val;
1095
1096        /* Setup Tx descriptor ring and Tx buffers */
1097
1098        if (!tx_ring->count)
1099                tx_ring->count = E1000_DEFAULT_TXD;
1100
1101        tx_ring->buffer_info = kcalloc(tx_ring->count,
1102                                       sizeof(struct e1000_buffer),
1103                                       GFP_KERNEL);
1104        if (!(tx_ring->buffer_info)) {
1105                ret_val = 1;
1106                goto err_nomem;
1107        }
1108
1109        tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
1110        tx_ring->size = ALIGN(tx_ring->size, 4096);
1111        tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
1112                                           &tx_ring->dma, GFP_KERNEL);
1113        if (!tx_ring->desc) {
1114                ret_val = 2;
1115                goto err_nomem;
1116        }
1117        tx_ring->next_to_use = 0;
1118        tx_ring->next_to_clean = 0;
1119
1120        ew32(TDBAL, ((u64) tx_ring->dma & 0x00000000FFFFFFFF));
1121        ew32(TDBAH, ((u64) tx_ring->dma >> 32));
1122        ew32(TDLEN, tx_ring->count * sizeof(struct e1000_tx_desc));
1123        ew32(TDH, 0);
1124        ew32(TDT, 0);
1125        ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR |
1126             E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
1127             E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);
1128
1129        for (i = 0; i < tx_ring->count; i++) {
1130                struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
1131                struct sk_buff *skb;
1132                unsigned int skb_size = 1024;
1133
1134                skb = alloc_skb(skb_size, GFP_KERNEL);
1135                if (!skb) {
1136                        ret_val = 3;
1137                        goto err_nomem;
1138                }
1139                skb_put(skb, skb_size);
1140                tx_ring->buffer_info[i].skb = skb;
1141                tx_ring->buffer_info[i].length = skb->len;
1142                tx_ring->buffer_info[i].dma =
1143                        pci_map_single(pdev, skb->data, skb->len,
1144                                       PCI_DMA_TODEVICE);
1145                if (pci_dma_mapping_error(pdev, tx_ring->buffer_info[i].dma)) {
1146                        ret_val = 4;
1147                        goto err_nomem;
1148                }
1149                tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma);
1150                tx_desc->lower.data = cpu_to_le32(skb->len);
1151                tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
1152                                                   E1000_TXD_CMD_IFCS |
1153                                                   E1000_TXD_CMD_RS);
1154                tx_desc->upper.data = 0;
1155        }
1156
1157        /* Setup Rx descriptor ring and Rx buffers */
1158
1159        if (!rx_ring->count)
1160                rx_ring->count = E1000_DEFAULT_RXD;
1161
1162        rx_ring->buffer_info = kcalloc(rx_ring->count,
1163                                       sizeof(struct e1000_buffer),
1164                                       GFP_KERNEL);
1165        if (!(rx_ring->buffer_info)) {
1166                ret_val = 5;
1167                goto err_nomem;
1168        }
1169
1170        rx_ring->size = rx_ring->count * sizeof(struct e1000_rx_desc);
1171        rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
1172                                           &rx_ring->dma, GFP_KERNEL);
1173        if (!rx_ring->desc) {
1174                ret_val = 6;
1175                goto err_nomem;
1176        }
1177        rx_ring->next_to_use = 0;
1178        rx_ring->next_to_clean = 0;
1179
1180        rctl = er32(RCTL);
1181        ew32(RCTL, rctl & ~E1000_RCTL_EN);
1182        ew32(RDBAL, ((u64) rx_ring->dma & 0xFFFFFFFF));
1183        ew32(RDBAH, ((u64) rx_ring->dma >> 32));
1184        ew32(RDLEN, rx_ring->size);
1185        ew32(RDH, 0);
1186        ew32(RDT, 0);
1187        rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
1188                E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE |
1189                E1000_RCTL_SBP | E1000_RCTL_SECRC |
1190                E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
1191                (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
1192        ew32(RCTL, rctl);
1193
1194        for (i = 0; i < rx_ring->count; i++) {
1195                struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rx_ring, i);
1196                struct sk_buff *skb;
1197
1198                skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
1199                if (!skb) {
1200                        ret_val = 7;
1201                        goto err_nomem;
1202                }
1203                skb_reserve(skb, NET_IP_ALIGN);
1204                rx_ring->buffer_info[i].skb = skb;
1205                rx_ring->buffer_info[i].dma =
1206                        pci_map_single(pdev, skb->data, 2048,
1207                                       PCI_DMA_FROMDEVICE);
1208                if (pci_dma_mapping_error(pdev, rx_ring->buffer_info[i].dma)) {
1209                        ret_val = 8;
1210                        goto err_nomem;
1211                }
1212                rx_desc->buffer_addr =
1213                        cpu_to_le64(rx_ring->buffer_info[i].dma);
1214                memset(skb->data, 0x00, skb->len);
1215        }
1216
1217        return 0;
1218
1219err_nomem:
1220        e1000_free_desc_rings(adapter);
1221        return ret_val;
1222}
1223
1224static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
1225{
1226        /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1227        e1e_wphy(&adapter->hw, 29, 0x001F);
1228        e1e_wphy(&adapter->hw, 30, 0x8FFC);
1229        e1e_wphy(&adapter->hw, 29, 0x001A);
1230        e1e_wphy(&adapter->hw, 30, 0x8FF0);
1231}
1232
1233static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
1234{
1235        struct e1000_hw *hw = &adapter->hw;
1236        u32 ctrl_reg = 0;
1237        u32 stat_reg = 0;
1238        u16 phy_reg = 0;
1239
1240        hw->mac.autoneg = 0;
1241
1242        if (hw->phy.type == e1000_phy_m88) {
1243                /* Auto-MDI/MDIX Off */
1244                e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1245                /* reset to update Auto-MDI/MDIX */
1246                e1e_wphy(hw, PHY_CONTROL, 0x9140);
1247                /* autoneg off */
1248                e1e_wphy(hw, PHY_CONTROL, 0x8140);
1249        } else if (hw->phy.type == e1000_phy_gg82563)
1250                e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);
1251
1252        ctrl_reg = er32(CTRL);
1253
1254        switch (hw->phy.type) {
1255        case e1000_phy_ife:
1256                /* force 100, set loopback */
1257                e1e_wphy(hw, PHY_CONTROL, 0x6100);
1258
1259                /* Now set up the MAC to the same speed/duplex as the PHY. */
1260                ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1261                ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1262                             E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1263                             E1000_CTRL_SPD_100 |/* Force Speed to 100 */
1264                             E1000_CTRL_FD);     /* Force Duplex to FULL */
1265                break;
1266        case e1000_phy_bm:
1267                /* Set Default MAC Interface speed to 1GB */
1268                e1e_rphy(hw, PHY_REG(2, 21), &phy_reg);
1269                phy_reg &= ~0x0007;
1270                phy_reg |= 0x006;
1271                e1e_wphy(hw, PHY_REG(2, 21), phy_reg);
1272                /* Assert SW reset for above settings to take effect */
1273                e1000e_commit_phy(hw);
1274                mdelay(1);
1275                /* Force Full Duplex */
1276                e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1277                e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C);
1278                /* Set Link Up (in force link) */
1279                e1e_rphy(hw, PHY_REG(776, 16), &phy_reg);
1280                e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040);
1281                /* Force Link */
1282                e1e_rphy(hw, PHY_REG(769, 16), &phy_reg);
1283                e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040);
1284                /* Set Early Link Enable */
1285                e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1286                e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400);
1287                /* fall through */
1288        default:
1289                /* force 1000, set loopback */
1290                e1e_wphy(hw, PHY_CONTROL, 0x4140);
1291                mdelay(250);
1292
1293                /* Now set up the MAC to the same speed/duplex as the PHY. */
1294                ctrl_reg = er32(CTRL);
1295                ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1296                ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1297                             E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1298                             E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1299                             E1000_CTRL_FD);     /* Force Duplex to FULL */
1300
1301                if (adapter->flags & FLAG_IS_ICH)
1302                        ctrl_reg |= E1000_CTRL_SLU;     /* Set Link Up */
1303        }
1304
1305        if (hw->phy.media_type == e1000_media_type_copper &&
1306            hw->phy.type == e1000_phy_m88) {
1307                ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1308        } else {
1309                /*
1310                 * Set the ILOS bit on the fiber Nic if half duplex link is
1311                 * detected.
1312                 */
1313                stat_reg = er32(STATUS);
1314                if ((stat_reg & E1000_STATUS_FD) == 0)
1315                        ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
1316        }
1317
1318        ew32(CTRL, ctrl_reg);
1319
1320        /*
1321         * Disable the receiver on the PHY so when a cable is plugged in, the
1322         * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1323         */
1324        if (hw->phy.type == e1000_phy_m88)
1325                e1000_phy_disable_receiver(adapter);
1326
1327        udelay(500);
1328
1329        return 0;
1330}
1331
1332static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
1333{
1334        struct e1000_hw *hw = &adapter->hw;
1335        u32 ctrl = er32(CTRL);
1336        int link = 0;
1337
1338        /* special requirements for 82571/82572 fiber adapters */
1339
1340        /*
1341         * jump through hoops to make sure link is up because serdes
1342         * link is hardwired up
1343         */
1344        ctrl |= E1000_CTRL_SLU;
1345        ew32(CTRL, ctrl);
1346
1347        /* disable autoneg */
1348        ctrl = er32(TXCW);
1349        ctrl &= ~(1 << 31);
1350        ew32(TXCW, ctrl);
1351
1352        link = (er32(STATUS) & E1000_STATUS_LU);
1353
1354        if (!link) {
1355                /* set invert loss of signal */
1356                ctrl = er32(CTRL);
1357                ctrl |= E1000_CTRL_ILOS;
1358                ew32(CTRL, ctrl);
1359        }
1360
1361        /*
1362         * special write to serdes control register to enable SerDes analog
1363         * loopback
1364         */
1365#define E1000_SERDES_LB_ON 0x410
1366        ew32(SCTL, E1000_SERDES_LB_ON);
1367        msleep(10);
1368
1369        return 0;
1370}
1371
1372/* only call this for fiber/serdes connections to es2lan */
1373static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
1374{
1375        struct e1000_hw *hw = &adapter->hw;
1376        u32 ctrlext = er32(CTRL_EXT);
1377        u32 ctrl = er32(CTRL);
1378
1379        /*
1380         * save CTRL_EXT to restore later, reuse an empty variable (unused
1381         * on mac_type 80003es2lan)
1382         */
1383        adapter->tx_fifo_head = ctrlext;
1384
1385        /* clear the serdes mode bits, putting the device into mac loopback */
1386        ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
1387        ew32(CTRL_EXT, ctrlext);
1388
1389        /* force speed to 1000/FD, link up */
1390        ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1391        ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
1392                 E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
1393        ew32(CTRL, ctrl);
1394
1395        /* set mac loopback */
1396        ctrl = er32(RCTL);
1397        ctrl |= E1000_RCTL_LBM_MAC;
1398        ew32(RCTL, ctrl);
1399
1400        /* set testing mode parameters (no need to reset later) */
1401#define KMRNCTRLSTA_OPMODE (0x1F << 16)
1402#define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
1403        ew32(KMRNCTRLSTA,
1404             (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));
1405
1406        return 0;
1407}
1408
1409static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
1410{
1411        struct e1000_hw *hw = &adapter->hw;
1412        u32 rctl;
1413
1414        if (hw->phy.media_type == e1000_media_type_fiber ||
1415            hw->phy.media_type == e1000_media_type_internal_serdes) {
1416                switch (hw->mac.type) {
1417                case e1000_80003es2lan:
1418                        return e1000_set_es2lan_mac_loopback(adapter);
1419                        break;
1420                case e1000_82571:
1421                case e1000_82572:
1422                        return e1000_set_82571_fiber_loopback(adapter);
1423                        break;
1424                default:
1425                        rctl = er32(RCTL);
1426                        rctl |= E1000_RCTL_LBM_TCVR;
1427                        ew32(RCTL, rctl);
1428                        return 0;
1429                }
1430        } else if (hw->phy.media_type == e1000_media_type_copper) {
1431                return e1000_integrated_phy_loopback(adapter);
1432        }
1433
1434        return 7;
1435}
1436
1437static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
1438{
1439        struct e1000_hw *hw = &adapter->hw;
1440        u32 rctl;
1441        u16 phy_reg;
1442
1443        rctl = er32(RCTL);
1444        rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1445        ew32(RCTL, rctl);
1446
1447        switch (hw->mac.type) {
1448        case e1000_80003es2lan:
1449                if (hw->phy.media_type == e1000_media_type_fiber ||
1450                    hw->phy.media_type == e1000_media_type_internal_serdes) {
1451                        /* restore CTRL_EXT, stealing space from tx_fifo_head */
1452                        ew32(CTRL_EXT, adapter->tx_fifo_head);
1453                        adapter->tx_fifo_head = 0;
1454                }
1455                /* fall through */
1456        case e1000_82571:
1457        case e1000_82572:
1458                if (hw->phy.media_type == e1000_media_type_fiber ||
1459                    hw->phy.media_type == e1000_media_type_internal_serdes) {
1460#define E1000_SERDES_LB_OFF 0x400
1461                        ew32(SCTL, E1000_SERDES_LB_OFF);
1462                        msleep(10);
1463                        break;
1464                }
1465                /* Fall Through */
1466        default:
1467                hw->mac.autoneg = 1;
1468                if (hw->phy.type == e1000_phy_gg82563)
1469                        e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
1470                e1e_rphy(hw, PHY_CONTROL, &phy_reg);
1471                if (phy_reg & MII_CR_LOOPBACK) {
1472                        phy_reg &= ~MII_CR_LOOPBACK;
1473                        e1e_wphy(hw, PHY_CONTROL, phy_reg);
1474                        e1000e_commit_phy(hw);
1475                }
1476                break;
1477        }
1478}
1479
1480static void e1000_create_lbtest_frame(struct sk_buff *skb,
1481                                      unsigned int frame_size)
1482{
1483        memset(skb->data, 0xFF, frame_size);
1484        frame_size &= ~1;
1485        memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1486        memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1487        memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1488}
1489
1490static int e1000_check_lbtest_frame(struct sk_buff *skb,
1491                                    unsigned int frame_size)
1492{
1493        frame_size &= ~1;
1494        if (*(skb->data + 3) == 0xFF)
1495                if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1496                   (*(skb->data + frame_size / 2 + 12) == 0xAF))
1497                        return 0;
1498        return 13;
1499}
1500
1501static int e1000_run_loopback_test(struct e1000_adapter *adapter)
1502{
1503        struct e1000_ring *tx_ring = &adapter->test_tx_ring;
1504        struct e1000_ring *rx_ring = &adapter->test_rx_ring;
1505        struct pci_dev *pdev = adapter->pdev;
1506        struct e1000_hw *hw = &adapter->hw;
1507        int i, j, k, l;
1508        int lc;
1509        int good_cnt;
1510        int ret_val = 0;
1511        unsigned long time;
1512
1513        ew32(RDT, rx_ring->count - 1);
1514
1515        /*
1516         * Calculate the loop count based on the largest descriptor ring
1517         * The idea is to wrap the largest ring a number of times using 64
1518         * send/receive pairs during each loop
1519         */
1520
1521        if (rx_ring->count <= tx_ring->count)
1522                lc = ((tx_ring->count / 64) * 2) + 1;
1523        else
1524                lc = ((rx_ring->count / 64) * 2) + 1;
1525
1526        k = 0;
1527        l = 0;
1528        for (j = 0; j <= lc; j++) { /* loop count loop */
1529                for (i = 0; i < 64; i++) { /* send the packets */
1530                        e1000_create_lbtest_frame(tx_ring->buffer_info[k].skb,
1531                                                  1024);
1532                        pci_dma_sync_single_for_device(pdev,
1533                                        tx_ring->buffer_info[k].dma,
1534                                        tx_ring->buffer_info[k].length,
1535                                        PCI_DMA_TODEVICE);
1536                        k++;
1537                        if (k == tx_ring->count)
1538                                k = 0;
1539                }
1540                ew32(TDT, k);
1541                msleep(200);
1542                time = jiffies; /* set the start time for the receive */
1543                good_cnt = 0;
1544                do { /* receive the sent packets */
1545                        pci_dma_sync_single_for_cpu(pdev,
1546                                        rx_ring->buffer_info[l].dma, 2048,
1547                                        PCI_DMA_FROMDEVICE);
1548
1549                        ret_val = e1000_check_lbtest_frame(
1550                                        rx_ring->buffer_info[l].skb, 1024);
1551                        if (!ret_val)
1552                                good_cnt++;
1553                        l++;
1554                        if (l == rx_ring->count)
1555                                l = 0;
1556                        /*
1557                         * time + 20 msecs (200 msecs on 2.4) is more than
1558                         * enough time to complete the receives, if it's
1559                         * exceeded, break and error off
1560                         */
1561                } while ((good_cnt < 64) && !time_after(jiffies, time + 20));
1562                if (good_cnt != 64) {
1563                        ret_val = 13; /* ret_val is the same as mis-compare */
1564                        break;
1565                }
1566                if (jiffies >= (time + 20)) {
1567                        ret_val = 14; /* error code for time out error */
1568                        break;
1569                }
1570        } /* end loop count loop */
1571        return ret_val;
1572}
1573
1574static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
1575{
1576        /*
1577         * PHY loopback cannot be performed if SoL/IDER
1578         * sessions are active
1579         */
1580        if (e1000_check_reset_block(&adapter->hw)) {
1581                e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
1582                *data = 0;
1583                goto out;
1584        }
1585
1586        *data = e1000_setup_desc_rings(adapter);
1587        if (*data)
1588                goto out;
1589
1590        *data = e1000_setup_loopback_test(adapter);
1591        if (*data)
1592                goto err_loopback;
1593
1594        *data = e1000_run_loopback_test(adapter);
1595        e1000_loopback_cleanup(adapter);
1596
1597err_loopback:
1598        e1000_free_desc_rings(adapter);
1599out:
1600        return *data;
1601}
1602
1603static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
1604{
1605        struct e1000_hw *hw = &adapter->hw;
1606
1607        *data = 0;
1608        if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1609                int i = 0;
1610                hw->mac.serdes_has_link = false;
1611
1612                /*
1613                 * On some blade server designs, link establishment
1614                 * could take as long as 2-3 minutes
1615                 */
1616                do {
1617                        hw->mac.ops.check_for_link(hw);
1618                        if (hw->mac.serdes_has_link)
1619                                return *data;
1620                        msleep(20);
1621                } while (i++ < 3750);
1622
1623                *data = 1;
1624        } else {
1625                hw->mac.ops.check_for_link(hw);
1626                if (hw->mac.autoneg)
1627                        msleep(4000);
1628
1629                if (!(er32(STATUS) &
1630                      E1000_STATUS_LU))
1631                        *data = 1;
1632        }
1633        return *data;
1634}
1635
1636static int e1000e_get_sset_count(struct net_device *netdev, int sset)
1637{
1638        switch (sset) {
1639        case ETH_SS_TEST:
1640                return E1000_TEST_LEN;
1641        case ETH_SS_STATS:
1642                return E1000_STATS_LEN;
1643        default:
1644                return -EOPNOTSUPP;
1645        }
1646}
1647
1648static void e1000_diag_test(struct net_device *netdev,
1649                            struct ethtool_test *eth_test, u64 *data)
1650{
1651        struct e1000_adapter *adapter = netdev_priv(netdev);
1652        u16 autoneg_advertised;
1653        u8 forced_speed_duplex;
1654        u8 autoneg;
1655        bool if_running = netif_running(netdev);
1656
1657        set_bit(__E1000_TESTING, &adapter->state);
1658        if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1659                /* Offline tests */
1660
1661                /* save speed, duplex, autoneg settings */
1662                autoneg_advertised = adapter->hw.phy.autoneg_advertised;
1663                forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
1664                autoneg = adapter->hw.mac.autoneg;
1665
1666                e_info("offline testing starting\n");
1667
1668                /*
1669                 * Link test performed before hardware reset so autoneg doesn't
1670                 * interfere with test result
1671                 */
1672                if (e1000_link_test(adapter, &data[4]))
1673                        eth_test->flags |= ETH_TEST_FL_FAILED;
1674
1675                if (if_running)
1676                        /* indicate we're in test mode */
1677                        dev_close(netdev);
1678                else
1679                        e1000e_reset(adapter);
1680
1681                if (e1000_reg_test(adapter, &data[0]))
1682                        eth_test->flags |= ETH_TEST_FL_FAILED;
1683
1684                e1000e_reset(adapter);
1685                if (e1000_eeprom_test(adapter, &data[1]))
1686                        eth_test->flags |= ETH_TEST_FL_FAILED;
1687
1688                e1000e_reset(adapter);
1689                if (e1000_intr_test(adapter, &data[2]))
1690                        eth_test->flags |= ETH_TEST_FL_FAILED;
1691
1692                e1000e_reset(adapter);
1693                /* make sure the phy is powered up */
1694                e1000e_power_up_phy(adapter);
1695                if (e1000_loopback_test(adapter, &data[3]))
1696                        eth_test->flags |= ETH_TEST_FL_FAILED;
1697
1698                /* restore speed, duplex, autoneg settings */
1699                adapter->hw.phy.autoneg_advertised = autoneg_advertised;
1700                adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
1701                adapter->hw.mac.autoneg = autoneg;
1702
1703                /* force this routine to wait until autoneg complete/timeout */
1704                adapter->hw.phy.autoneg_wait_to_complete = 1;
1705                e1000e_reset(adapter);
1706                adapter->hw.phy.autoneg_wait_to_complete = 0;
1707
1708                clear_bit(__E1000_TESTING, &adapter->state);
1709                if (if_running)
1710                        dev_open(netdev);
1711        } else {
1712                e_info("online testing starting\n");
1713                /* Online tests */
1714                if (e1000_link_test(adapter, &data[4]))
1715                        eth_test->flags |= ETH_TEST_FL_FAILED;
1716
1717                /* Online tests aren't run; pass by default */
1718                data[0] = 0;
1719                data[1] = 0;
1720                data[2] = 0;
1721                data[3] = 0;
1722
1723                clear_bit(__E1000_TESTING, &adapter->state);
1724        }
1725        msleep_interruptible(4 * 1000);
1726}
1727
1728static void e1000_get_wol(struct net_device *netdev,
1729                          struct ethtool_wolinfo *wol)
1730{
1731        struct e1000_adapter *adapter = netdev_priv(netdev);
1732
1733        wol->supported = 0;
1734        wol->wolopts = 0;
1735
1736        if (!(adapter->flags & FLAG_HAS_WOL) ||
1737            !device_can_wakeup(&adapter->pdev->dev))
1738                return;
1739
1740        wol->supported = WAKE_UCAST | WAKE_MCAST |
1741                         WAKE_BCAST | WAKE_MAGIC |
1742                         WAKE_PHY | WAKE_ARP;
1743
1744        /* apply any specific unsupported masks here */
1745        if (adapter->flags & FLAG_NO_WAKE_UCAST) {
1746                wol->supported &= ~WAKE_UCAST;
1747
1748                if (adapter->wol & E1000_WUFC_EX)
1749                        e_err("Interface does not support directed (unicast) "
1750                              "frame wake-up packets\n");
1751        }
1752
1753        if (adapter->wol & E1000_WUFC_EX)
1754                wol->wolopts |= WAKE_UCAST;
1755        if (adapter->wol & E1000_WUFC_MC)
1756                wol->wolopts |= WAKE_MCAST;
1757        if (adapter->wol & E1000_WUFC_BC)
1758                wol->wolopts |= WAKE_BCAST;
1759        if (adapter->wol & E1000_WUFC_MAG)
1760                wol->wolopts |= WAKE_MAGIC;
1761        if (adapter->wol & E1000_WUFC_LNKC)
1762                wol->wolopts |= WAKE_PHY;
1763        if (adapter->wol & E1000_WUFC_ARP)
1764                wol->wolopts |= WAKE_ARP;
1765}
1766
1767static int e1000_set_wol(struct net_device *netdev,
1768                         struct ethtool_wolinfo *wol)
1769{
1770        struct e1000_adapter *adapter = netdev_priv(netdev);
1771
1772        if (wol->wolopts & WAKE_MAGICSECURE)
1773                return -EOPNOTSUPP;
1774
1775        if (!(adapter->flags & FLAG_HAS_WOL) ||
1776            !device_can_wakeup(&adapter->pdev->dev))
1777                return wol->wolopts ? -EOPNOTSUPP : 0;
1778
1779        /* these settings will always override what we currently have */
1780        adapter->wol = 0;
1781
1782        if (wol->wolopts & WAKE_UCAST)
1783                adapter->wol |= E1000_WUFC_EX;
1784        if (wol->wolopts & WAKE_MCAST)
1785                adapter->wol |= E1000_WUFC_MC;
1786        if (wol->wolopts & WAKE_BCAST)
1787                adapter->wol |= E1000_WUFC_BC;
1788        if (wol->wolopts & WAKE_MAGIC)
1789                adapter->wol |= E1000_WUFC_MAG;
1790        if (wol->wolopts & WAKE_PHY)
1791                adapter->wol |= E1000_WUFC_LNKC;
1792        if (wol->wolopts & WAKE_ARP)
1793                adapter->wol |= E1000_WUFC_ARP;
1794
1795        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1796
1797        return 0;
1798}
1799
1800/* toggle LED 4 times per second = 2 "blinks" per second */
1801#define E1000_ID_INTERVAL       (HZ/4)
1802
1803/* bit defines for adapter->led_status */
1804#define E1000_LED_ON            0
1805
1806static void e1000e_led_blink_task(struct work_struct *work)
1807{
1808        struct e1000_adapter *adapter = container_of(work,
1809                                        struct e1000_adapter, led_blink_task);
1810
1811        if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
1812                adapter->hw.mac.ops.led_off(&adapter->hw);
1813        else
1814                adapter->hw.mac.ops.led_on(&adapter->hw);
1815}
1816
1817static void e1000_led_blink_callback(unsigned long data)
1818{
1819        struct e1000_adapter *adapter = (struct e1000_adapter *) data;
1820
1821        schedule_work(&adapter->led_blink_task);
1822        mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
1823}
1824
1825static int e1000_phys_id(struct net_device *netdev, u32 data)
1826{
1827        struct e1000_adapter *adapter = netdev_priv(netdev);
1828        struct e1000_hw *hw = &adapter->hw;
1829
1830        if (!data)
1831                data = INT_MAX;
1832
1833        if ((hw->phy.type == e1000_phy_ife) ||
1834            (hw->mac.type == e1000_pchlan) ||
1835            (hw->mac.type == e1000_82574)) {
1836                INIT_WORK(&adapter->led_blink_task, e1000e_led_blink_task);
1837                if (!adapter->blink_timer.function) {
1838                        init_timer(&adapter->blink_timer);
1839                        adapter->blink_timer.function =
1840                                e1000_led_blink_callback;
1841                        adapter->blink_timer.data = (unsigned long) adapter;
1842                }
1843                mod_timer(&adapter->blink_timer, jiffies);
1844                msleep_interruptible(data * 1000);
1845                del_timer_sync(&adapter->blink_timer);
1846                if (hw->phy.type == e1000_phy_ife)
1847                        e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
1848        } else {
1849                e1000e_blink_led(hw);
1850                msleep_interruptible(data * 1000);
1851        }
1852
1853        hw->mac.ops.led_off(hw);
1854        clear_bit(E1000_LED_ON, &adapter->led_status);
1855        hw->mac.ops.cleanup_led(hw);
1856
1857        return 0;
1858}
1859
1860static int e1000_get_coalesce(struct net_device *netdev,
1861                              struct ethtool_coalesce *ec)
1862{
1863        struct e1000_adapter *adapter = netdev_priv(netdev);
1864
1865        if (adapter->itr_setting <= 3)
1866                ec->rx_coalesce_usecs = adapter->itr_setting;
1867        else
1868                ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;
1869
1870        return 0;
1871}
1872
1873static int e1000_set_coalesce(struct net_device *netdev,
1874                              struct ethtool_coalesce *ec)
1875{
1876        struct e1000_adapter *adapter = netdev_priv(netdev);
1877        struct e1000_hw *hw = &adapter->hw;
1878
1879        if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
1880            ((ec->rx_coalesce_usecs > 3) &&
1881             (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
1882            (ec->rx_coalesce_usecs == 2))
1883                return -EINVAL;
1884
1885        if (ec->rx_coalesce_usecs <= 3) {
1886                adapter->itr = 20000;
1887                adapter->itr_setting = ec->rx_coalesce_usecs;
1888        } else {
1889                adapter->itr = (1000000 / ec->rx_coalesce_usecs);
1890                adapter->itr_setting = adapter->itr & ~3;
1891        }
1892
1893        if (adapter->itr_setting != 0)
1894                ew32(ITR, 1000000000 / (adapter->itr * 256));
1895        else
1896                ew32(ITR, 0);
1897
1898        return 0;
1899}
1900
1901static int e1000_nway_reset(struct net_device *netdev)
1902{
1903        struct e1000_adapter *adapter = netdev_priv(netdev);
1904        if (netif_running(netdev))
1905                e1000e_reinit_locked(adapter);
1906        return 0;
1907}
1908
1909static void e1000_get_ethtool_stats(struct net_device *netdev,
1910                                    struct ethtool_stats *stats,
1911                                    u64 *data)
1912{
1913        struct e1000_adapter *adapter = netdev_priv(netdev);
1914        int i;
1915
1916        e1000e_update_stats(adapter);
1917        for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1918                char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
1919                data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
1920                        sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1921        }
1922}
1923
1924static void e1000_get_strings(struct net_device *netdev, u32 stringset,
1925                              u8 *data)
1926{
1927        u8 *p = data;
1928        int i;
1929
1930        switch (stringset) {
1931        case ETH_SS_TEST:
1932                memcpy(data, *e1000_gstrings_test, sizeof(e1000_gstrings_test));
1933                break;
1934        case ETH_SS_STATS:
1935                for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
1936                        memcpy(p, e1000_gstrings_stats[i].stat_string,
1937                               ETH_GSTRING_LEN);
1938                        p += ETH_GSTRING_LEN;
1939                }
1940                break;
1941        }
1942}
1943
1944static const struct ethtool_ops e1000_ethtool_ops = {
1945        .get_settings           = e1000_get_settings,
1946        .set_settings           = e1000_set_settings,
1947        .get_drvinfo            = e1000_get_drvinfo,
1948        .get_regs_len           = e1000_get_regs_len,
1949        .get_regs               = e1000_get_regs,
1950        .get_wol                = e1000_get_wol,
1951        .set_wol                = e1000_set_wol,
1952        .get_msglevel           = e1000_get_msglevel,
1953        .set_msglevel           = e1000_set_msglevel,
1954        .nway_reset             = e1000_nway_reset,
1955        .get_link               = e1000_get_link,
1956        .get_eeprom_len         = e1000_get_eeprom_len,
1957        .get_eeprom             = e1000_get_eeprom,
1958        .set_eeprom             = e1000_set_eeprom,
1959        .get_ringparam          = e1000_get_ringparam,
1960        .set_ringparam          = e1000_set_ringparam,
1961        .get_pauseparam         = e1000_get_pauseparam,
1962        .set_pauseparam         = e1000_set_pauseparam,
1963        .get_rx_csum            = e1000_get_rx_csum,
1964        .set_rx_csum            = e1000_set_rx_csum,
1965        .get_tx_csum            = e1000_get_tx_csum,
1966        .set_tx_csum            = e1000_set_tx_csum,
1967        .get_sg                 = ethtool_op_get_sg,
1968        .set_sg                 = ethtool_op_set_sg,
1969        .get_tso                = ethtool_op_get_tso,
1970        .set_tso                = e1000_set_tso,
1971        .self_test              = e1000_diag_test,
1972        .get_strings            = e1000_get_strings,
1973        .phys_id                = e1000_phys_id,
1974        .get_ethtool_stats      = e1000_get_ethtool_stats,
1975        .get_sset_count         = e1000e_get_sset_count,
1976        .get_coalesce           = e1000_get_coalesce,
1977        .set_coalesce           = e1000_set_coalesce,
1978};
1979
1980void e1000e_set_ethtool_ops(struct net_device *netdev)
1981{
1982        SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
1983}
1984
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