linux/drivers/net/ethernet/intel/igb/igb_ethtool.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright(c) 2007 - 2018 Intel Corporation. */
   3
   4/* ethtool support for igb */
   5
   6#include <linux/vmalloc.h>
   7#include <linux/netdevice.h>
   8#include <linux/pci.h>
   9#include <linux/delay.h>
  10#include <linux/interrupt.h>
  11#include <linux/if_ether.h>
  12#include <linux/ethtool.h>
  13#include <linux/sched.h>
  14#include <linux/slab.h>
  15#include <linux/pm_runtime.h>
  16#include <linux/highmem.h>
  17#include <linux/mdio.h>
  18
  19#include "igb.h"
  20
  21struct igb_stats {
  22        char stat_string[ETH_GSTRING_LEN];
  23        int sizeof_stat;
  24        int stat_offset;
  25};
  26
  27#define IGB_STAT(_name, _stat) { \
  28        .stat_string = _name, \
  29        .sizeof_stat = sizeof_field(struct igb_adapter, _stat), \
  30        .stat_offset = offsetof(struct igb_adapter, _stat) \
  31}
  32static const struct igb_stats igb_gstrings_stats[] = {
  33        IGB_STAT("rx_packets", stats.gprc),
  34        IGB_STAT("tx_packets", stats.gptc),
  35        IGB_STAT("rx_bytes", stats.gorc),
  36        IGB_STAT("tx_bytes", stats.gotc),
  37        IGB_STAT("rx_broadcast", stats.bprc),
  38        IGB_STAT("tx_broadcast", stats.bptc),
  39        IGB_STAT("rx_multicast", stats.mprc),
  40        IGB_STAT("tx_multicast", stats.mptc),
  41        IGB_STAT("multicast", stats.mprc),
  42        IGB_STAT("collisions", stats.colc),
  43        IGB_STAT("rx_crc_errors", stats.crcerrs),
  44        IGB_STAT("rx_no_buffer_count", stats.rnbc),
  45        IGB_STAT("rx_missed_errors", stats.mpc),
  46        IGB_STAT("tx_aborted_errors", stats.ecol),
  47        IGB_STAT("tx_carrier_errors", stats.tncrs),
  48        IGB_STAT("tx_window_errors", stats.latecol),
  49        IGB_STAT("tx_abort_late_coll", stats.latecol),
  50        IGB_STAT("tx_deferred_ok", stats.dc),
  51        IGB_STAT("tx_single_coll_ok", stats.scc),
  52        IGB_STAT("tx_multi_coll_ok", stats.mcc),
  53        IGB_STAT("tx_timeout_count", tx_timeout_count),
  54        IGB_STAT("rx_long_length_errors", stats.roc),
  55        IGB_STAT("rx_short_length_errors", stats.ruc),
  56        IGB_STAT("rx_align_errors", stats.algnerrc),
  57        IGB_STAT("tx_tcp_seg_good", stats.tsctc),
  58        IGB_STAT("tx_tcp_seg_failed", stats.tsctfc),
  59        IGB_STAT("rx_flow_control_xon", stats.xonrxc),
  60        IGB_STAT("rx_flow_control_xoff", stats.xoffrxc),
  61        IGB_STAT("tx_flow_control_xon", stats.xontxc),
  62        IGB_STAT("tx_flow_control_xoff", stats.xofftxc),
  63        IGB_STAT("rx_long_byte_count", stats.gorc),
  64        IGB_STAT("tx_dma_out_of_sync", stats.doosync),
  65        IGB_STAT("tx_smbus", stats.mgptc),
  66        IGB_STAT("rx_smbus", stats.mgprc),
  67        IGB_STAT("dropped_smbus", stats.mgpdc),
  68        IGB_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
  69        IGB_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
  70        IGB_STAT("os2bmc_tx_by_host", stats.o2bspc),
  71        IGB_STAT("os2bmc_rx_by_host", stats.b2ogprc),
  72        IGB_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
  73        IGB_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
  74        IGB_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
  75};
  76
  77#define IGB_NETDEV_STAT(_net_stat) { \
  78        .stat_string = __stringify(_net_stat), \
  79        .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
  80        .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
  81}
  82static const struct igb_stats igb_gstrings_net_stats[] = {
  83        IGB_NETDEV_STAT(rx_errors),
  84        IGB_NETDEV_STAT(tx_errors),
  85        IGB_NETDEV_STAT(tx_dropped),
  86        IGB_NETDEV_STAT(rx_length_errors),
  87        IGB_NETDEV_STAT(rx_over_errors),
  88        IGB_NETDEV_STAT(rx_frame_errors),
  89        IGB_NETDEV_STAT(rx_fifo_errors),
  90        IGB_NETDEV_STAT(tx_fifo_errors),
  91        IGB_NETDEV_STAT(tx_heartbeat_errors)
  92};
  93
  94#define IGB_GLOBAL_STATS_LEN    \
  95        (sizeof(igb_gstrings_stats) / sizeof(struct igb_stats))
  96#define IGB_NETDEV_STATS_LEN    \
  97        (sizeof(igb_gstrings_net_stats) / sizeof(struct igb_stats))
  98#define IGB_RX_QUEUE_STATS_LEN \
  99        (sizeof(struct igb_rx_queue_stats) / sizeof(u64))
 100
 101#define IGB_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
 102
 103#define IGB_QUEUE_STATS_LEN \
 104        ((((struct igb_adapter *)netdev_priv(netdev))->num_rx_queues * \
 105          IGB_RX_QUEUE_STATS_LEN) + \
 106         (((struct igb_adapter *)netdev_priv(netdev))->num_tx_queues * \
 107          IGB_TX_QUEUE_STATS_LEN))
 108#define IGB_STATS_LEN \
 109        (IGB_GLOBAL_STATS_LEN + IGB_NETDEV_STATS_LEN + IGB_QUEUE_STATS_LEN)
 110
 111enum igb_diagnostics_results {
 112        TEST_REG = 0,
 113        TEST_EEP,
 114        TEST_IRQ,
 115        TEST_LOOP,
 116        TEST_LINK
 117};
 118
 119static const char igb_gstrings_test[][ETH_GSTRING_LEN] = {
 120        [TEST_REG]  = "Register test  (offline)",
 121        [TEST_EEP]  = "Eeprom test    (offline)",
 122        [TEST_IRQ]  = "Interrupt test (offline)",
 123        [TEST_LOOP] = "Loopback test  (offline)",
 124        [TEST_LINK] = "Link test   (on/offline)"
 125};
 126#define IGB_TEST_LEN (sizeof(igb_gstrings_test) / ETH_GSTRING_LEN)
 127
 128static const char igb_priv_flags_strings[][ETH_GSTRING_LEN] = {
 129#define IGB_PRIV_FLAGS_LEGACY_RX        BIT(0)
 130        "legacy-rx",
 131};
 132
 133#define IGB_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igb_priv_flags_strings)
 134
 135static int igb_get_link_ksettings(struct net_device *netdev,
 136                                  struct ethtool_link_ksettings *cmd)
 137{
 138        struct igb_adapter *adapter = netdev_priv(netdev);
 139        struct e1000_hw *hw = &adapter->hw;
 140        struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575;
 141        struct e1000_sfp_flags *eth_flags = &dev_spec->eth_flags;
 142        u32 status;
 143        u32 speed;
 144        u32 supported, advertising;
 145
 146        status = rd32(E1000_STATUS);
 147        if (hw->phy.media_type == e1000_media_type_copper) {
 148
 149                supported = (SUPPORTED_10baseT_Half |
 150                             SUPPORTED_10baseT_Full |
 151                             SUPPORTED_100baseT_Half |
 152                             SUPPORTED_100baseT_Full |
 153                             SUPPORTED_1000baseT_Full|
 154                             SUPPORTED_Autoneg |
 155                             SUPPORTED_TP |
 156                             SUPPORTED_Pause);
 157                advertising = ADVERTISED_TP;
 158
 159                if (hw->mac.autoneg == 1) {
 160                        advertising |= ADVERTISED_Autoneg;
 161                        /* the e1000 autoneg seems to match ethtool nicely */
 162                        advertising |= hw->phy.autoneg_advertised;
 163                }
 164
 165                cmd->base.port = PORT_TP;
 166                cmd->base.phy_address = hw->phy.addr;
 167        } else {
 168                supported = (SUPPORTED_FIBRE |
 169                             SUPPORTED_1000baseKX_Full |
 170                             SUPPORTED_Autoneg |
 171                             SUPPORTED_Pause);
 172                advertising = (ADVERTISED_FIBRE |
 173                               ADVERTISED_1000baseKX_Full);
 174                if (hw->mac.type == e1000_i354) {
 175                        if ((hw->device_id ==
 176                             E1000_DEV_ID_I354_BACKPLANE_2_5GBPS) &&
 177                            !(status & E1000_STATUS_2P5_SKU_OVER)) {
 178                                supported |= SUPPORTED_2500baseX_Full;
 179                                supported &= ~SUPPORTED_1000baseKX_Full;
 180                                advertising |= ADVERTISED_2500baseX_Full;
 181                                advertising &= ~ADVERTISED_1000baseKX_Full;
 182                        }
 183                }
 184                if (eth_flags->e100_base_fx || eth_flags->e100_base_lx) {
 185                        supported |= SUPPORTED_100baseT_Full;
 186                        advertising |= ADVERTISED_100baseT_Full;
 187                }
 188                if (hw->mac.autoneg == 1)
 189                        advertising |= ADVERTISED_Autoneg;
 190
 191                cmd->base.port = PORT_FIBRE;
 192        }
 193        if (hw->mac.autoneg != 1)
 194                advertising &= ~(ADVERTISED_Pause |
 195                                 ADVERTISED_Asym_Pause);
 196
 197        switch (hw->fc.requested_mode) {
 198        case e1000_fc_full:
 199                advertising |= ADVERTISED_Pause;
 200                break;
 201        case e1000_fc_rx_pause:
 202                advertising |= (ADVERTISED_Pause |
 203                                ADVERTISED_Asym_Pause);
 204                break;
 205        case e1000_fc_tx_pause:
 206                advertising |=  ADVERTISED_Asym_Pause;
 207                break;
 208        default:
 209                advertising &= ~(ADVERTISED_Pause |
 210                                 ADVERTISED_Asym_Pause);
 211        }
 212        if (status & E1000_STATUS_LU) {
 213                if ((status & E1000_STATUS_2P5_SKU) &&
 214                    !(status & E1000_STATUS_2P5_SKU_OVER)) {
 215                        speed = SPEED_2500;
 216                } else if (status & E1000_STATUS_SPEED_1000) {
 217                        speed = SPEED_1000;
 218                } else if (status & E1000_STATUS_SPEED_100) {
 219                        speed = SPEED_100;
 220                } else {
 221                        speed = SPEED_10;
 222                }
 223                if ((status & E1000_STATUS_FD) ||
 224                    hw->phy.media_type != e1000_media_type_copper)
 225                        cmd->base.duplex = DUPLEX_FULL;
 226                else
 227                        cmd->base.duplex = DUPLEX_HALF;
 228        } else {
 229                speed = SPEED_UNKNOWN;
 230                cmd->base.duplex = DUPLEX_UNKNOWN;
 231        }
 232        cmd->base.speed = speed;
 233        if ((hw->phy.media_type == e1000_media_type_fiber) ||
 234            hw->mac.autoneg)
 235                cmd->base.autoneg = AUTONEG_ENABLE;
 236        else
 237                cmd->base.autoneg = AUTONEG_DISABLE;
 238
 239        /* MDI-X => 2; MDI =>1; Invalid =>0 */
 240        if (hw->phy.media_type == e1000_media_type_copper)
 241                cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
 242                                                      ETH_TP_MDI;
 243        else
 244                cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
 245
 246        if (hw->phy.mdix == AUTO_ALL_MODES)
 247                cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 248        else
 249                cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
 250
 251        ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
 252                                                supported);
 253        ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
 254                                                advertising);
 255
 256        return 0;
 257}
 258
 259static int igb_set_link_ksettings(struct net_device *netdev,
 260                                  const struct ethtool_link_ksettings *cmd)
 261{
 262        struct igb_adapter *adapter = netdev_priv(netdev);
 263        struct e1000_hw *hw = &adapter->hw;
 264        u32 advertising;
 265
 266        /* When SoL/IDER sessions are active, autoneg/speed/duplex
 267         * cannot be changed
 268         */
 269        if (igb_check_reset_block(hw)) {
 270                dev_err(&adapter->pdev->dev,
 271                        "Cannot change link characteristics when SoL/IDER is active.\n");
 272                return -EINVAL;
 273        }
 274
 275        /* MDI setting is only allowed when autoneg enabled because
 276         * some hardware doesn't allow MDI setting when speed or
 277         * duplex is forced.
 278         */
 279        if (cmd->base.eth_tp_mdix_ctrl) {
 280                if (hw->phy.media_type != e1000_media_type_copper)
 281                        return -EOPNOTSUPP;
 282
 283                if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
 284                    (cmd->base.autoneg != AUTONEG_ENABLE)) {
 285                        dev_err(&adapter->pdev->dev, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
 286                        return -EINVAL;
 287                }
 288        }
 289
 290        while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 291                usleep_range(1000, 2000);
 292
 293        ethtool_convert_link_mode_to_legacy_u32(&advertising,
 294                                                cmd->link_modes.advertising);
 295
 296        if (cmd->base.autoneg == AUTONEG_ENABLE) {
 297                hw->mac.autoneg = 1;
 298                if (hw->phy.media_type == e1000_media_type_fiber) {
 299                        hw->phy.autoneg_advertised = advertising |
 300                                                     ADVERTISED_FIBRE |
 301                                                     ADVERTISED_Autoneg;
 302                        switch (adapter->link_speed) {
 303                        case SPEED_2500:
 304                                hw->phy.autoneg_advertised =
 305                                        ADVERTISED_2500baseX_Full;
 306                                break;
 307                        case SPEED_1000:
 308                                hw->phy.autoneg_advertised =
 309                                        ADVERTISED_1000baseT_Full;
 310                                break;
 311                        case SPEED_100:
 312                                hw->phy.autoneg_advertised =
 313                                        ADVERTISED_100baseT_Full;
 314                                break;
 315                        default:
 316                                break;
 317                        }
 318                } else {
 319                        hw->phy.autoneg_advertised = advertising |
 320                                                     ADVERTISED_TP |
 321                                                     ADVERTISED_Autoneg;
 322                }
 323                advertising = hw->phy.autoneg_advertised;
 324                if (adapter->fc_autoneg)
 325                        hw->fc.requested_mode = e1000_fc_default;
 326        } else {
 327                u32 speed = cmd->base.speed;
 328                /* calling this overrides forced MDI setting */
 329                if (igb_set_spd_dplx(adapter, speed, cmd->base.duplex)) {
 330                        clear_bit(__IGB_RESETTING, &adapter->state);
 331                        return -EINVAL;
 332                }
 333        }
 334
 335        /* MDI-X => 2; MDI => 1; Auto => 3 */
 336        if (cmd->base.eth_tp_mdix_ctrl) {
 337                /* fix up the value for auto (3 => 0) as zero is mapped
 338                 * internally to auto
 339                 */
 340                if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
 341                        hw->phy.mdix = AUTO_ALL_MODES;
 342                else
 343                        hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
 344        }
 345
 346        /* reset the link */
 347        if (netif_running(adapter->netdev)) {
 348                igb_down(adapter);
 349                igb_up(adapter);
 350        } else
 351                igb_reset(adapter);
 352
 353        clear_bit(__IGB_RESETTING, &adapter->state);
 354        return 0;
 355}
 356
 357static u32 igb_get_link(struct net_device *netdev)
 358{
 359        struct igb_adapter *adapter = netdev_priv(netdev);
 360        struct e1000_mac_info *mac = &adapter->hw.mac;
 361
 362        /* If the link is not reported up to netdev, interrupts are disabled,
 363         * and so the physical link state may have changed since we last
 364         * looked. Set get_link_status to make sure that the true link
 365         * state is interrogated, rather than pulling a cached and possibly
 366         * stale link state from the driver.
 367         */
 368        if (!netif_carrier_ok(netdev))
 369                mac->get_link_status = 1;
 370
 371        return igb_has_link(adapter);
 372}
 373
 374static void igb_get_pauseparam(struct net_device *netdev,
 375                               struct ethtool_pauseparam *pause)
 376{
 377        struct igb_adapter *adapter = netdev_priv(netdev);
 378        struct e1000_hw *hw = &adapter->hw;
 379
 380        pause->autoneg =
 381                (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
 382
 383        if (hw->fc.current_mode == e1000_fc_rx_pause)
 384                pause->rx_pause = 1;
 385        else if (hw->fc.current_mode == e1000_fc_tx_pause)
 386                pause->tx_pause = 1;
 387        else if (hw->fc.current_mode == e1000_fc_full) {
 388                pause->rx_pause = 1;
 389                pause->tx_pause = 1;
 390        }
 391}
 392
 393static int igb_set_pauseparam(struct net_device *netdev,
 394                              struct ethtool_pauseparam *pause)
 395{
 396        struct igb_adapter *adapter = netdev_priv(netdev);
 397        struct e1000_hw *hw = &adapter->hw;
 398        int retval = 0;
 399        int i;
 400
 401        /* 100basefx does not support setting link flow control */
 402        if (hw->dev_spec._82575.eth_flags.e100_base_fx)
 403                return -EINVAL;
 404
 405        adapter->fc_autoneg = pause->autoneg;
 406
 407        while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 408                usleep_range(1000, 2000);
 409
 410        if (adapter->fc_autoneg == AUTONEG_ENABLE) {
 411                hw->fc.requested_mode = e1000_fc_default;
 412                if (netif_running(adapter->netdev)) {
 413                        igb_down(adapter);
 414                        igb_up(adapter);
 415                } else {
 416                        igb_reset(adapter);
 417                }
 418        } else {
 419                if (pause->rx_pause && pause->tx_pause)
 420                        hw->fc.requested_mode = e1000_fc_full;
 421                else if (pause->rx_pause && !pause->tx_pause)
 422                        hw->fc.requested_mode = e1000_fc_rx_pause;
 423                else if (!pause->rx_pause && pause->tx_pause)
 424                        hw->fc.requested_mode = e1000_fc_tx_pause;
 425                else if (!pause->rx_pause && !pause->tx_pause)
 426                        hw->fc.requested_mode = e1000_fc_none;
 427
 428                hw->fc.current_mode = hw->fc.requested_mode;
 429
 430                retval = ((hw->phy.media_type == e1000_media_type_copper) ?
 431                          igb_force_mac_fc(hw) : igb_setup_link(hw));
 432
 433                /* Make sure SRRCTL considers new fc settings for each ring */
 434                for (i = 0; i < adapter->num_rx_queues; i++) {
 435                        struct igb_ring *ring = adapter->rx_ring[i];
 436
 437                        igb_setup_srrctl(adapter, ring);
 438                }
 439        }
 440
 441        clear_bit(__IGB_RESETTING, &adapter->state);
 442        return retval;
 443}
 444
 445static u32 igb_get_msglevel(struct net_device *netdev)
 446{
 447        struct igb_adapter *adapter = netdev_priv(netdev);
 448        return adapter->msg_enable;
 449}
 450
 451static void igb_set_msglevel(struct net_device *netdev, u32 data)
 452{
 453        struct igb_adapter *adapter = netdev_priv(netdev);
 454        adapter->msg_enable = data;
 455}
 456
 457static int igb_get_regs_len(struct net_device *netdev)
 458{
 459#define IGB_REGS_LEN 740
 460        return IGB_REGS_LEN * sizeof(u32);
 461}
 462
 463static void igb_get_regs(struct net_device *netdev,
 464                         struct ethtool_regs *regs, void *p)
 465{
 466        struct igb_adapter *adapter = netdev_priv(netdev);
 467        struct e1000_hw *hw = &adapter->hw;
 468        u32 *regs_buff = p;
 469        u8 i;
 470
 471        memset(p, 0, IGB_REGS_LEN * sizeof(u32));
 472
 473        regs->version = (1u << 24) | (hw->revision_id << 16) | hw->device_id;
 474
 475        /* General Registers */
 476        regs_buff[0] = rd32(E1000_CTRL);
 477        regs_buff[1] = rd32(E1000_STATUS);
 478        regs_buff[2] = rd32(E1000_CTRL_EXT);
 479        regs_buff[3] = rd32(E1000_MDIC);
 480        regs_buff[4] = rd32(E1000_SCTL);
 481        regs_buff[5] = rd32(E1000_CONNSW);
 482        regs_buff[6] = rd32(E1000_VET);
 483        regs_buff[7] = rd32(E1000_LEDCTL);
 484        regs_buff[8] = rd32(E1000_PBA);
 485        regs_buff[9] = rd32(E1000_PBS);
 486        regs_buff[10] = rd32(E1000_FRTIMER);
 487        regs_buff[11] = rd32(E1000_TCPTIMER);
 488
 489        /* NVM Register */
 490        regs_buff[12] = rd32(E1000_EECD);
 491
 492        /* Interrupt */
 493        /* Reading EICS for EICR because they read the
 494         * same but EICS does not clear on read
 495         */
 496        regs_buff[13] = rd32(E1000_EICS);
 497        regs_buff[14] = rd32(E1000_EICS);
 498        regs_buff[15] = rd32(E1000_EIMS);
 499        regs_buff[16] = rd32(E1000_EIMC);
 500        regs_buff[17] = rd32(E1000_EIAC);
 501        regs_buff[18] = rd32(E1000_EIAM);
 502        /* Reading ICS for ICR because they read the
 503         * same but ICS does not clear on read
 504         */
 505        regs_buff[19] = rd32(E1000_ICS);
 506        regs_buff[20] = rd32(E1000_ICS);
 507        regs_buff[21] = rd32(E1000_IMS);
 508        regs_buff[22] = rd32(E1000_IMC);
 509        regs_buff[23] = rd32(E1000_IAC);
 510        regs_buff[24] = rd32(E1000_IAM);
 511        regs_buff[25] = rd32(E1000_IMIRVP);
 512
 513        /* Flow Control */
 514        regs_buff[26] = rd32(E1000_FCAL);
 515        regs_buff[27] = rd32(E1000_FCAH);
 516        regs_buff[28] = rd32(E1000_FCTTV);
 517        regs_buff[29] = rd32(E1000_FCRTL);
 518        regs_buff[30] = rd32(E1000_FCRTH);
 519        regs_buff[31] = rd32(E1000_FCRTV);
 520
 521        /* Receive */
 522        regs_buff[32] = rd32(E1000_RCTL);
 523        regs_buff[33] = rd32(E1000_RXCSUM);
 524        regs_buff[34] = rd32(E1000_RLPML);
 525        regs_buff[35] = rd32(E1000_RFCTL);
 526        regs_buff[36] = rd32(E1000_MRQC);
 527        regs_buff[37] = rd32(E1000_VT_CTL);
 528
 529        /* Transmit */
 530        regs_buff[38] = rd32(E1000_TCTL);
 531        regs_buff[39] = rd32(E1000_TCTL_EXT);
 532        regs_buff[40] = rd32(E1000_TIPG);
 533        regs_buff[41] = rd32(E1000_DTXCTL);
 534
 535        /* Wake Up */
 536        regs_buff[42] = rd32(E1000_WUC);
 537        regs_buff[43] = rd32(E1000_WUFC);
 538        regs_buff[44] = rd32(E1000_WUS);
 539        regs_buff[45] = rd32(E1000_IPAV);
 540        regs_buff[46] = rd32(E1000_WUPL);
 541
 542        /* MAC */
 543        regs_buff[47] = rd32(E1000_PCS_CFG0);
 544        regs_buff[48] = rd32(E1000_PCS_LCTL);
 545        regs_buff[49] = rd32(E1000_PCS_LSTAT);
 546        regs_buff[50] = rd32(E1000_PCS_ANADV);
 547        regs_buff[51] = rd32(E1000_PCS_LPAB);
 548        regs_buff[52] = rd32(E1000_PCS_NPTX);
 549        regs_buff[53] = rd32(E1000_PCS_LPABNP);
 550
 551        /* Statistics */
 552        regs_buff[54] = adapter->stats.crcerrs;
 553        regs_buff[55] = adapter->stats.algnerrc;
 554        regs_buff[56] = adapter->stats.symerrs;
 555        regs_buff[57] = adapter->stats.rxerrc;
 556        regs_buff[58] = adapter->stats.mpc;
 557        regs_buff[59] = adapter->stats.scc;
 558        regs_buff[60] = adapter->stats.ecol;
 559        regs_buff[61] = adapter->stats.mcc;
 560        regs_buff[62] = adapter->stats.latecol;
 561        regs_buff[63] = adapter->stats.colc;
 562        regs_buff[64] = adapter->stats.dc;
 563        regs_buff[65] = adapter->stats.tncrs;
 564        regs_buff[66] = adapter->stats.sec;
 565        regs_buff[67] = adapter->stats.htdpmc;
 566        regs_buff[68] = adapter->stats.rlec;
 567        regs_buff[69] = adapter->stats.xonrxc;
 568        regs_buff[70] = adapter->stats.xontxc;
 569        regs_buff[71] = adapter->stats.xoffrxc;
 570        regs_buff[72] = adapter->stats.xofftxc;
 571        regs_buff[73] = adapter->stats.fcruc;
 572        regs_buff[74] = adapter->stats.prc64;
 573        regs_buff[75] = adapter->stats.prc127;
 574        regs_buff[76] = adapter->stats.prc255;
 575        regs_buff[77] = adapter->stats.prc511;
 576        regs_buff[78] = adapter->stats.prc1023;
 577        regs_buff[79] = adapter->stats.prc1522;
 578        regs_buff[80] = adapter->stats.gprc;
 579        regs_buff[81] = adapter->stats.bprc;
 580        regs_buff[82] = adapter->stats.mprc;
 581        regs_buff[83] = adapter->stats.gptc;
 582        regs_buff[84] = adapter->stats.gorc;
 583        regs_buff[86] = adapter->stats.gotc;
 584        regs_buff[88] = adapter->stats.rnbc;
 585        regs_buff[89] = adapter->stats.ruc;
 586        regs_buff[90] = adapter->stats.rfc;
 587        regs_buff[91] = adapter->stats.roc;
 588        regs_buff[92] = adapter->stats.rjc;
 589        regs_buff[93] = adapter->stats.mgprc;
 590        regs_buff[94] = adapter->stats.mgpdc;
 591        regs_buff[95] = adapter->stats.mgptc;
 592        regs_buff[96] = adapter->stats.tor;
 593        regs_buff[98] = adapter->stats.tot;
 594        regs_buff[100] = adapter->stats.tpr;
 595        regs_buff[101] = adapter->stats.tpt;
 596        regs_buff[102] = adapter->stats.ptc64;
 597        regs_buff[103] = adapter->stats.ptc127;
 598        regs_buff[104] = adapter->stats.ptc255;
 599        regs_buff[105] = adapter->stats.ptc511;
 600        regs_buff[106] = adapter->stats.ptc1023;
 601        regs_buff[107] = adapter->stats.ptc1522;
 602        regs_buff[108] = adapter->stats.mptc;
 603        regs_buff[109] = adapter->stats.bptc;
 604        regs_buff[110] = adapter->stats.tsctc;
 605        regs_buff[111] = adapter->stats.iac;
 606        regs_buff[112] = adapter->stats.rpthc;
 607        regs_buff[113] = adapter->stats.hgptc;
 608        regs_buff[114] = adapter->stats.hgorc;
 609        regs_buff[116] = adapter->stats.hgotc;
 610        regs_buff[118] = adapter->stats.lenerrs;
 611        regs_buff[119] = adapter->stats.scvpc;
 612        regs_buff[120] = adapter->stats.hrmpc;
 613
 614        for (i = 0; i < 4; i++)
 615                regs_buff[121 + i] = rd32(E1000_SRRCTL(i));
 616        for (i = 0; i < 4; i++)
 617                regs_buff[125 + i] = rd32(E1000_PSRTYPE(i));
 618        for (i = 0; i < 4; i++)
 619                regs_buff[129 + i] = rd32(E1000_RDBAL(i));
 620        for (i = 0; i < 4; i++)
 621                regs_buff[133 + i] = rd32(E1000_RDBAH(i));
 622        for (i = 0; i < 4; i++)
 623                regs_buff[137 + i] = rd32(E1000_RDLEN(i));
 624        for (i = 0; i < 4; i++)
 625                regs_buff[141 + i] = rd32(E1000_RDH(i));
 626        for (i = 0; i < 4; i++)
 627                regs_buff[145 + i] = rd32(E1000_RDT(i));
 628        for (i = 0; i < 4; i++)
 629                regs_buff[149 + i] = rd32(E1000_RXDCTL(i));
 630
 631        for (i = 0; i < 10; i++)
 632                regs_buff[153 + i] = rd32(E1000_EITR(i));
 633        for (i = 0; i < 8; i++)
 634                regs_buff[163 + i] = rd32(E1000_IMIR(i));
 635        for (i = 0; i < 8; i++)
 636                regs_buff[171 + i] = rd32(E1000_IMIREXT(i));
 637        for (i = 0; i < 16; i++)
 638                regs_buff[179 + i] = rd32(E1000_RAL(i));
 639        for (i = 0; i < 16; i++)
 640                regs_buff[195 + i] = rd32(E1000_RAH(i));
 641
 642        for (i = 0; i < 4; i++)
 643                regs_buff[211 + i] = rd32(E1000_TDBAL(i));
 644        for (i = 0; i < 4; i++)
 645                regs_buff[215 + i] = rd32(E1000_TDBAH(i));
 646        for (i = 0; i < 4; i++)
 647                regs_buff[219 + i] = rd32(E1000_TDLEN(i));
 648        for (i = 0; i < 4; i++)
 649                regs_buff[223 + i] = rd32(E1000_TDH(i));
 650        for (i = 0; i < 4; i++)
 651                regs_buff[227 + i] = rd32(E1000_TDT(i));
 652        for (i = 0; i < 4; i++)
 653                regs_buff[231 + i] = rd32(E1000_TXDCTL(i));
 654        for (i = 0; i < 4; i++)
 655                regs_buff[235 + i] = rd32(E1000_TDWBAL(i));
 656        for (i = 0; i < 4; i++)
 657                regs_buff[239 + i] = rd32(E1000_TDWBAH(i));
 658        for (i = 0; i < 4; i++)
 659                regs_buff[243 + i] = rd32(E1000_DCA_TXCTRL(i));
 660
 661        for (i = 0; i < 4; i++)
 662                regs_buff[247 + i] = rd32(E1000_IP4AT_REG(i));
 663        for (i = 0; i < 4; i++)
 664                regs_buff[251 + i] = rd32(E1000_IP6AT_REG(i));
 665        for (i = 0; i < 32; i++)
 666                regs_buff[255 + i] = rd32(E1000_WUPM_REG(i));
 667        for (i = 0; i < 128; i++)
 668                regs_buff[287 + i] = rd32(E1000_FFMT_REG(i));
 669        for (i = 0; i < 128; i++)
 670                regs_buff[415 + i] = rd32(E1000_FFVT_REG(i));
 671        for (i = 0; i < 4; i++)
 672                regs_buff[543 + i] = rd32(E1000_FFLT_REG(i));
 673
 674        regs_buff[547] = rd32(E1000_TDFH);
 675        regs_buff[548] = rd32(E1000_TDFT);
 676        regs_buff[549] = rd32(E1000_TDFHS);
 677        regs_buff[550] = rd32(E1000_TDFPC);
 678
 679        if (hw->mac.type > e1000_82580) {
 680                regs_buff[551] = adapter->stats.o2bgptc;
 681                regs_buff[552] = adapter->stats.b2ospc;
 682                regs_buff[553] = adapter->stats.o2bspc;
 683                regs_buff[554] = adapter->stats.b2ogprc;
 684        }
 685
 686        if (hw->mac.type == e1000_82576) {
 687                for (i = 0; i < 12; i++)
 688                        regs_buff[555 + i] = rd32(E1000_SRRCTL(i + 4));
 689                for (i = 0; i < 4; i++)
 690                        regs_buff[567 + i] = rd32(E1000_PSRTYPE(i + 4));
 691                for (i = 0; i < 12; i++)
 692                        regs_buff[571 + i] = rd32(E1000_RDBAL(i + 4));
 693                for (i = 0; i < 12; i++)
 694                        regs_buff[583 + i] = rd32(E1000_RDBAH(i + 4));
 695                for (i = 0; i < 12; i++)
 696                        regs_buff[595 + i] = rd32(E1000_RDLEN(i + 4));
 697                for (i = 0; i < 12; i++)
 698                        regs_buff[607 + i] = rd32(E1000_RDH(i + 4));
 699                for (i = 0; i < 12; i++)
 700                        regs_buff[619 + i] = rd32(E1000_RDT(i + 4));
 701                for (i = 0; i < 12; i++)
 702                        regs_buff[631 + i] = rd32(E1000_RXDCTL(i + 4));
 703
 704                for (i = 0; i < 12; i++)
 705                        regs_buff[643 + i] = rd32(E1000_TDBAL(i + 4));
 706                for (i = 0; i < 12; i++)
 707                        regs_buff[655 + i] = rd32(E1000_TDBAH(i + 4));
 708                for (i = 0; i < 12; i++)
 709                        regs_buff[667 + i] = rd32(E1000_TDLEN(i + 4));
 710                for (i = 0; i < 12; i++)
 711                        regs_buff[679 + i] = rd32(E1000_TDH(i + 4));
 712                for (i = 0; i < 12; i++)
 713                        regs_buff[691 + i] = rd32(E1000_TDT(i + 4));
 714                for (i = 0; i < 12; i++)
 715                        regs_buff[703 + i] = rd32(E1000_TXDCTL(i + 4));
 716                for (i = 0; i < 12; i++)
 717                        regs_buff[715 + i] = rd32(E1000_TDWBAL(i + 4));
 718                for (i = 0; i < 12; i++)
 719                        regs_buff[727 + i] = rd32(E1000_TDWBAH(i + 4));
 720        }
 721
 722        if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211)
 723                regs_buff[739] = rd32(E1000_I210_RR2DCDELAY);
 724}
 725
 726static int igb_get_eeprom_len(struct net_device *netdev)
 727{
 728        struct igb_adapter *adapter = netdev_priv(netdev);
 729        return adapter->hw.nvm.word_size * 2;
 730}
 731
 732static int igb_get_eeprom(struct net_device *netdev,
 733                          struct ethtool_eeprom *eeprom, u8 *bytes)
 734{
 735        struct igb_adapter *adapter = netdev_priv(netdev);
 736        struct e1000_hw *hw = &adapter->hw;
 737        u16 *eeprom_buff;
 738        int first_word, last_word;
 739        int ret_val = 0;
 740        u16 i;
 741
 742        if (eeprom->len == 0)
 743                return -EINVAL;
 744
 745        eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 746
 747        first_word = eeprom->offset >> 1;
 748        last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 749
 750        eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
 751                                    GFP_KERNEL);
 752        if (!eeprom_buff)
 753                return -ENOMEM;
 754
 755        if (hw->nvm.type == e1000_nvm_eeprom_spi)
 756                ret_val = hw->nvm.ops.read(hw, first_word,
 757                                           last_word - first_word + 1,
 758                                           eeprom_buff);
 759        else {
 760                for (i = 0; i < last_word - first_word + 1; i++) {
 761                        ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
 762                                                   &eeprom_buff[i]);
 763                        if (ret_val)
 764                                break;
 765                }
 766        }
 767
 768        /* Device's eeprom is always little-endian, word addressable */
 769        for (i = 0; i < last_word - first_word + 1; i++)
 770                le16_to_cpus(&eeprom_buff[i]);
 771
 772        memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
 773                        eeprom->len);
 774        kfree(eeprom_buff);
 775
 776        return ret_val;
 777}
 778
 779static int igb_set_eeprom(struct net_device *netdev,
 780                          struct ethtool_eeprom *eeprom, u8 *bytes)
 781{
 782        struct igb_adapter *adapter = netdev_priv(netdev);
 783        struct e1000_hw *hw = &adapter->hw;
 784        u16 *eeprom_buff;
 785        void *ptr;
 786        int max_len, first_word, last_word, ret_val = 0;
 787        u16 i;
 788
 789        if (eeprom->len == 0)
 790                return -EOPNOTSUPP;
 791
 792        if ((hw->mac.type >= e1000_i210) &&
 793            !igb_get_flash_presence_i210(hw)) {
 794                return -EOPNOTSUPP;
 795        }
 796
 797        if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 798                return -EFAULT;
 799
 800        max_len = hw->nvm.word_size * 2;
 801
 802        first_word = eeprom->offset >> 1;
 803        last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 804        eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 805        if (!eeprom_buff)
 806                return -ENOMEM;
 807
 808        ptr = (void *)eeprom_buff;
 809
 810        if (eeprom->offset & 1) {
 811                /* need read/modify/write of first changed EEPROM word
 812                 * only the second byte of the word is being modified
 813                 */
 814                ret_val = hw->nvm.ops.read(hw, first_word, 1,
 815                                            &eeprom_buff[0]);
 816                ptr++;
 817        }
 818        if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) {
 819                /* need read/modify/write of last changed EEPROM word
 820                 * only the first byte of the word is being modified
 821                 */
 822                ret_val = hw->nvm.ops.read(hw, last_word, 1,
 823                                   &eeprom_buff[last_word - first_word]);
 824        }
 825
 826        /* Device's eeprom is always little-endian, word addressable */
 827        for (i = 0; i < last_word - first_word + 1; i++)
 828                le16_to_cpus(&eeprom_buff[i]);
 829
 830        memcpy(ptr, bytes, eeprom->len);
 831
 832        for (i = 0; i < last_word - first_word + 1; i++)
 833                eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
 834
 835        ret_val = hw->nvm.ops.write(hw, first_word,
 836                                    last_word - first_word + 1, eeprom_buff);
 837
 838        /* Update the checksum if nvm write succeeded */
 839        if (ret_val == 0)
 840                hw->nvm.ops.update(hw);
 841
 842        igb_set_fw_version(adapter);
 843        kfree(eeprom_buff);
 844        return ret_val;
 845}
 846
 847static void igb_get_drvinfo(struct net_device *netdev,
 848                            struct ethtool_drvinfo *drvinfo)
 849{
 850        struct igb_adapter *adapter = netdev_priv(netdev);
 851
 852        strlcpy(drvinfo->driver,  igb_driver_name, sizeof(drvinfo->driver));
 853        strlcpy(drvinfo->version, igb_driver_version, sizeof(drvinfo->version));
 854
 855        /* EEPROM image version # is reported as firmware version # for
 856         * 82575 controllers
 857         */
 858        strlcpy(drvinfo->fw_version, adapter->fw_version,
 859                sizeof(drvinfo->fw_version));
 860        strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 861                sizeof(drvinfo->bus_info));
 862
 863        drvinfo->n_priv_flags = IGB_PRIV_FLAGS_STR_LEN;
 864}
 865
 866static void igb_get_ringparam(struct net_device *netdev,
 867                              struct ethtool_ringparam *ring)
 868{
 869        struct igb_adapter *adapter = netdev_priv(netdev);
 870
 871        ring->rx_max_pending = IGB_MAX_RXD;
 872        ring->tx_max_pending = IGB_MAX_TXD;
 873        ring->rx_pending = adapter->rx_ring_count;
 874        ring->tx_pending = adapter->tx_ring_count;
 875}
 876
 877static int igb_set_ringparam(struct net_device *netdev,
 878                             struct ethtool_ringparam *ring)
 879{
 880        struct igb_adapter *adapter = netdev_priv(netdev);
 881        struct igb_ring *temp_ring;
 882        int i, err = 0;
 883        u16 new_rx_count, new_tx_count;
 884
 885        if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 886                return -EINVAL;
 887
 888        new_rx_count = min_t(u32, ring->rx_pending, IGB_MAX_RXD);
 889        new_rx_count = max_t(u16, new_rx_count, IGB_MIN_RXD);
 890        new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
 891
 892        new_tx_count = min_t(u32, ring->tx_pending, IGB_MAX_TXD);
 893        new_tx_count = max_t(u16, new_tx_count, IGB_MIN_TXD);
 894        new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
 895
 896        if ((new_tx_count == adapter->tx_ring_count) &&
 897            (new_rx_count == adapter->rx_ring_count)) {
 898                /* nothing to do */
 899                return 0;
 900        }
 901
 902        while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 903                usleep_range(1000, 2000);
 904
 905        if (!netif_running(adapter->netdev)) {
 906                for (i = 0; i < adapter->num_tx_queues; i++)
 907                        adapter->tx_ring[i]->count = new_tx_count;
 908                for (i = 0; i < adapter->num_rx_queues; i++)
 909                        adapter->rx_ring[i]->count = new_rx_count;
 910                adapter->tx_ring_count = new_tx_count;
 911                adapter->rx_ring_count = new_rx_count;
 912                goto clear_reset;
 913        }
 914
 915        if (adapter->num_tx_queues > adapter->num_rx_queues)
 916                temp_ring = vmalloc(array_size(sizeof(struct igb_ring),
 917                                               adapter->num_tx_queues));
 918        else
 919                temp_ring = vmalloc(array_size(sizeof(struct igb_ring),
 920                                               adapter->num_rx_queues));
 921
 922        if (!temp_ring) {
 923                err = -ENOMEM;
 924                goto clear_reset;
 925        }
 926
 927        igb_down(adapter);
 928
 929        /* We can't just free everything and then setup again,
 930         * because the ISRs in MSI-X mode get passed pointers
 931         * to the Tx and Rx ring structs.
 932         */
 933        if (new_tx_count != adapter->tx_ring_count) {
 934                for (i = 0; i < adapter->num_tx_queues; i++) {
 935                        memcpy(&temp_ring[i], adapter->tx_ring[i],
 936                               sizeof(struct igb_ring));
 937
 938                        temp_ring[i].count = new_tx_count;
 939                        err = igb_setup_tx_resources(&temp_ring[i]);
 940                        if (err) {
 941                                while (i) {
 942                                        i--;
 943                                        igb_free_tx_resources(&temp_ring[i]);
 944                                }
 945                                goto err_setup;
 946                        }
 947                }
 948
 949                for (i = 0; i < adapter->num_tx_queues; i++) {
 950                        igb_free_tx_resources(adapter->tx_ring[i]);
 951
 952                        memcpy(adapter->tx_ring[i], &temp_ring[i],
 953                               sizeof(struct igb_ring));
 954                }
 955
 956                adapter->tx_ring_count = new_tx_count;
 957        }
 958
 959        if (new_rx_count != adapter->rx_ring_count) {
 960                for (i = 0; i < adapter->num_rx_queues; i++) {
 961                        memcpy(&temp_ring[i], adapter->rx_ring[i],
 962                               sizeof(struct igb_ring));
 963
 964                        temp_ring[i].count = new_rx_count;
 965                        err = igb_setup_rx_resources(&temp_ring[i]);
 966                        if (err) {
 967                                while (i) {
 968                                        i--;
 969                                        igb_free_rx_resources(&temp_ring[i]);
 970                                }
 971                                goto err_setup;
 972                        }
 973
 974                }
 975
 976                for (i = 0; i < adapter->num_rx_queues; i++) {
 977                        igb_free_rx_resources(adapter->rx_ring[i]);
 978
 979                        memcpy(adapter->rx_ring[i], &temp_ring[i],
 980                               sizeof(struct igb_ring));
 981                }
 982
 983                adapter->rx_ring_count = new_rx_count;
 984        }
 985err_setup:
 986        igb_up(adapter);
 987        vfree(temp_ring);
 988clear_reset:
 989        clear_bit(__IGB_RESETTING, &adapter->state);
 990        return err;
 991}
 992
 993/* ethtool register test data */
 994struct igb_reg_test {
 995        u16 reg;
 996        u16 reg_offset;
 997        u16 array_len;
 998        u16 test_type;
 999        u32 mask;
1000        u32 write;
1001};
1002
1003/* In the hardware, registers are laid out either singly, in arrays
1004 * spaced 0x100 bytes apart, or in contiguous tables.  We assume
1005 * most tests take place on arrays or single registers (handled
1006 * as a single-element array) and special-case the tables.
1007 * Table tests are always pattern tests.
1008 *
1009 * We also make provision for some required setup steps by specifying
1010 * registers to be written without any read-back testing.
1011 */
1012
1013#define PATTERN_TEST    1
1014#define SET_READ_TEST   2
1015#define WRITE_NO_TEST   3
1016#define TABLE32_TEST    4
1017#define TABLE64_TEST_LO 5
1018#define TABLE64_TEST_HI 6
1019
1020/* i210 reg test */
1021static struct igb_reg_test reg_test_i210[] = {
1022        { E1000_FCAL,      0x100, 1,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1023        { E1000_FCAH,      0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1024        { E1000_FCT,       0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1025        { E1000_RDBAL(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1026        { E1000_RDBAH(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1027        { E1000_RDLEN(0),  0x100, 4,  PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1028        /* RDH is read-only for i210, only test RDT. */
1029        { E1000_RDT(0),    0x100, 4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1030        { E1000_FCRTH,     0x100, 1,  PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
1031        { E1000_FCTTV,     0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1032        { E1000_TIPG,      0x100, 1,  PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
1033        { E1000_TDBAL(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1034        { E1000_TDBAH(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1035        { E1000_TDLEN(0),  0x100, 4,  PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1036        { E1000_TDT(0),    0x100, 4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1037        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1038        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0x003FFFFB },
1039        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0xFFFFFFFF },
1040        { E1000_TCTL,      0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1041        { E1000_RA,        0, 16, TABLE64_TEST_LO,
1042                                                0xFFFFFFFF, 0xFFFFFFFF },
1043        { E1000_RA,        0, 16, TABLE64_TEST_HI,
1044                                                0x900FFFFF, 0xFFFFFFFF },
1045        { E1000_MTA,       0, 128, TABLE32_TEST,
1046                                                0xFFFFFFFF, 0xFFFFFFFF },
1047        { 0, 0, 0, 0, 0 }
1048};
1049
1050/* i350 reg test */
1051static struct igb_reg_test reg_test_i350[] = {
1052        { E1000_FCAL,      0x100, 1,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1053        { E1000_FCAH,      0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1054        { E1000_FCT,       0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1055        { E1000_VET,       0x100, 1,  PATTERN_TEST, 0xFFFF0000, 0xFFFF0000 },
1056        { E1000_RDBAL(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1057        { E1000_RDBAH(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1058        { E1000_RDLEN(0),  0x100, 4,  PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1059        { E1000_RDBAL(4),  0x40,  4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1060        { E1000_RDBAH(4),  0x40,  4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1061        { E1000_RDLEN(4),  0x40,  4,  PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1062        /* RDH is read-only for i350, only test RDT. */
1063        { E1000_RDT(0),    0x100, 4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1064        { E1000_RDT(4),    0x40,  4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1065        { E1000_FCRTH,     0x100, 1,  PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
1066        { E1000_FCTTV,     0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1067        { E1000_TIPG,      0x100, 1,  PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
1068        { E1000_TDBAL(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1069        { E1000_TDBAH(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1070        { E1000_TDLEN(0),  0x100, 4,  PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1071        { E1000_TDBAL(4),  0x40,  4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1072        { E1000_TDBAH(4),  0x40,  4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1073        { E1000_TDLEN(4),  0x40,  4,  PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1074        { E1000_TDT(0),    0x100, 4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1075        { E1000_TDT(4),    0x40,  4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1076        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1077        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0x003FFFFB },
1078        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0xFFFFFFFF },
1079        { E1000_TCTL,      0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1080        { E1000_RA,        0, 16, TABLE64_TEST_LO,
1081                                                0xFFFFFFFF, 0xFFFFFFFF },
1082        { E1000_RA,        0, 16, TABLE64_TEST_HI,
1083                                                0xC3FFFFFF, 0xFFFFFFFF },
1084        { E1000_RA2,       0, 16, TABLE64_TEST_LO,
1085                                                0xFFFFFFFF, 0xFFFFFFFF },
1086        { E1000_RA2,       0, 16, TABLE64_TEST_HI,
1087                                                0xC3FFFFFF, 0xFFFFFFFF },
1088        { E1000_MTA,       0, 128, TABLE32_TEST,
1089                                                0xFFFFFFFF, 0xFFFFFFFF },
1090        { 0, 0, 0, 0 }
1091};
1092
1093/* 82580 reg test */
1094static struct igb_reg_test reg_test_82580[] = {
1095        { E1000_FCAL,      0x100, 1,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1096        { E1000_FCAH,      0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1097        { E1000_FCT,       0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1098        { E1000_VET,       0x100, 1,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1099        { E1000_RDBAL(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1100        { E1000_RDBAH(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1101        { E1000_RDLEN(0),  0x100, 4,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
1102        { E1000_RDBAL(4),  0x40,  4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1103        { E1000_RDBAH(4),  0x40,  4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1104        { E1000_RDLEN(4),  0x40,  4,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
1105        /* RDH is read-only for 82580, only test RDT. */
1106        { E1000_RDT(0),    0x100, 4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1107        { E1000_RDT(4),    0x40,  4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1108        { E1000_FCRTH,     0x100, 1,  PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
1109        { E1000_FCTTV,     0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1110        { E1000_TIPG,      0x100, 1,  PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
1111        { E1000_TDBAL(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1112        { E1000_TDBAH(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1113        { E1000_TDLEN(0),  0x100, 4,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
1114        { E1000_TDBAL(4),  0x40,  4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1115        { E1000_TDBAH(4),  0x40,  4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1116        { E1000_TDLEN(4),  0x40,  4,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
1117        { E1000_TDT(0),    0x100, 4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1118        { E1000_TDT(4),    0x40,  4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1119        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1120        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0x003FFFFB },
1121        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0xFFFFFFFF },
1122        { E1000_TCTL,      0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1123        { E1000_RA,        0, 16, TABLE64_TEST_LO,
1124                                                0xFFFFFFFF, 0xFFFFFFFF },
1125        { E1000_RA,        0, 16, TABLE64_TEST_HI,
1126                                                0x83FFFFFF, 0xFFFFFFFF },
1127        { E1000_RA2,       0, 8, TABLE64_TEST_LO,
1128                                                0xFFFFFFFF, 0xFFFFFFFF },
1129        { E1000_RA2,       0, 8, TABLE64_TEST_HI,
1130                                                0x83FFFFFF, 0xFFFFFFFF },
1131        { E1000_MTA,       0, 128, TABLE32_TEST,
1132                                                0xFFFFFFFF, 0xFFFFFFFF },
1133        { 0, 0, 0, 0 }
1134};
1135
1136/* 82576 reg test */
1137static struct igb_reg_test reg_test_82576[] = {
1138        { E1000_FCAL,      0x100, 1,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1139        { E1000_FCAH,      0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1140        { E1000_FCT,       0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1141        { E1000_VET,       0x100, 1,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1142        { E1000_RDBAL(0),  0x100, 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1143        { E1000_RDBAH(0),  0x100, 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1144        { E1000_RDLEN(0),  0x100, 4, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
1145        { E1000_RDBAL(4),  0x40, 12, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1146        { E1000_RDBAH(4),  0x40, 12, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1147        { E1000_RDLEN(4),  0x40, 12, PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
1148        /* Enable all RX queues before testing. */
1149        { E1000_RXDCTL(0), 0x100, 4, WRITE_NO_TEST, 0,
1150          E1000_RXDCTL_QUEUE_ENABLE },
1151        { E1000_RXDCTL(4), 0x40, 12, WRITE_NO_TEST, 0,
1152          E1000_RXDCTL_QUEUE_ENABLE },
1153        /* RDH is read-only for 82576, only test RDT. */
1154        { E1000_RDT(0),    0x100, 4,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1155        { E1000_RDT(4),    0x40, 12,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1156        { E1000_RXDCTL(0), 0x100, 4,  WRITE_NO_TEST, 0, 0 },
1157        { E1000_RXDCTL(4), 0x40, 12,  WRITE_NO_TEST, 0, 0 },
1158        { E1000_FCRTH,     0x100, 1,  PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
1159        { E1000_FCTTV,     0x100, 1,  PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1160        { E1000_TIPG,      0x100, 1,  PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
1161        { E1000_TDBAL(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1162        { E1000_TDBAH(0),  0x100, 4,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1163        { E1000_TDLEN(0),  0x100, 4,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
1164        { E1000_TDBAL(4),  0x40, 12,  PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1165        { E1000_TDBAH(4),  0x40, 12,  PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1166        { E1000_TDLEN(4),  0x40, 12,  PATTERN_TEST, 0x000FFFF0, 0x000FFFFF },
1167        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1168        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0x003FFFFB },
1169        { E1000_RCTL,      0x100, 1,  SET_READ_TEST, 0x04CFB0FE, 0xFFFFFFFF },
1170        { E1000_TCTL,      0x100, 1,  SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1171        { E1000_RA,        0, 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1172        { E1000_RA,        0, 16, TABLE64_TEST_HI, 0x83FFFFFF, 0xFFFFFFFF },
1173        { E1000_RA2,       0, 8, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1174        { E1000_RA2,       0, 8, TABLE64_TEST_HI, 0x83FFFFFF, 0xFFFFFFFF },
1175        { E1000_MTA,       0, 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1176        { 0, 0, 0, 0 }
1177};
1178
1179/* 82575 register test */
1180static struct igb_reg_test reg_test_82575[] = {
1181        { E1000_FCAL,      0x100, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1182        { E1000_FCAH,      0x100, 1, PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1183        { E1000_FCT,       0x100, 1, PATTERN_TEST, 0x0000FFFF, 0xFFFFFFFF },
1184        { E1000_VET,       0x100, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1185        { E1000_RDBAL(0),  0x100, 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1186        { E1000_RDBAH(0),  0x100, 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1187        { E1000_RDLEN(0),  0x100, 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1188        /* Enable all four RX queues before testing. */
1189        { E1000_RXDCTL(0), 0x100, 4, WRITE_NO_TEST, 0,
1190          E1000_RXDCTL_QUEUE_ENABLE },
1191        /* RDH is read-only for 82575, only test RDT. */
1192        { E1000_RDT(0),    0x100, 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1193        { E1000_RXDCTL(0), 0x100, 4, WRITE_NO_TEST, 0, 0 },
1194        { E1000_FCRTH,     0x100, 1, PATTERN_TEST, 0x0000FFF0, 0x0000FFF0 },
1195        { E1000_FCTTV,     0x100, 1, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1196        { E1000_TIPG,      0x100, 1, PATTERN_TEST, 0x3FFFFFFF, 0x3FFFFFFF },
1197        { E1000_TDBAL(0),  0x100, 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1198        { E1000_TDBAH(0),  0x100, 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1199        { E1000_TDLEN(0),  0x100, 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1200        { E1000_RCTL,      0x100, 1, SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1201        { E1000_RCTL,      0x100, 1, SET_READ_TEST, 0x04CFB3FE, 0x003FFFFB },
1202        { E1000_RCTL,      0x100, 1, SET_READ_TEST, 0x04CFB3FE, 0xFFFFFFFF },
1203        { E1000_TCTL,      0x100, 1, SET_READ_TEST, 0xFFFFFFFF, 0x00000000 },
1204        { E1000_TXCW,      0x100, 1, PATTERN_TEST, 0xC000FFFF, 0x0000FFFF },
1205        { E1000_RA,        0, 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1206        { E1000_RA,        0, 16, TABLE64_TEST_HI, 0x800FFFFF, 0xFFFFFFFF },
1207        { E1000_MTA,       0, 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1208        { 0, 0, 0, 0 }
1209};
1210
1211static bool reg_pattern_test(struct igb_adapter *adapter, u64 *data,
1212                             int reg, u32 mask, u32 write)
1213{
1214        struct e1000_hw *hw = &adapter->hw;
1215        u32 pat, val;
1216        static const u32 _test[] = {
1217                0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
1218        for (pat = 0; pat < ARRAY_SIZE(_test); pat++) {
1219                wr32(reg, (_test[pat] & write));
1220                val = rd32(reg) & mask;
1221                if (val != (_test[pat] & write & mask)) {
1222                        dev_err(&adapter->pdev->dev,
1223                                "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
1224                                reg, val, (_test[pat] & write & mask));
1225                        *data = reg;
1226                        return true;
1227                }
1228        }
1229
1230        return false;
1231}
1232
1233static bool reg_set_and_check(struct igb_adapter *adapter, u64 *data,
1234                              int reg, u32 mask, u32 write)
1235{
1236        struct e1000_hw *hw = &adapter->hw;
1237        u32 val;
1238
1239        wr32(reg, write & mask);
1240        val = rd32(reg);
1241        if ((write & mask) != (val & mask)) {
1242                dev_err(&adapter->pdev->dev,
1243                        "set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
1244                        reg, (val & mask), (write & mask));
1245                *data = reg;
1246                return true;
1247        }
1248
1249        return false;
1250}
1251
1252#define REG_PATTERN_TEST(reg, mask, write) \
1253        do { \
1254                if (reg_pattern_test(adapter, data, reg, mask, write)) \
1255                        return 1; \
1256        } while (0)
1257
1258#define REG_SET_AND_CHECK(reg, mask, write) \
1259        do { \
1260                if (reg_set_and_check(adapter, data, reg, mask, write)) \
1261                        return 1; \
1262        } while (0)
1263
1264static int igb_reg_test(struct igb_adapter *adapter, u64 *data)
1265{
1266        struct e1000_hw *hw = &adapter->hw;
1267        struct igb_reg_test *test;
1268        u32 value, before, after;
1269        u32 i, toggle;
1270
1271        switch (adapter->hw.mac.type) {
1272        case e1000_i350:
1273        case e1000_i354:
1274                test = reg_test_i350;
1275                toggle = 0x7FEFF3FF;
1276                break;
1277        case e1000_i210:
1278        case e1000_i211:
1279                test = reg_test_i210;
1280                toggle = 0x7FEFF3FF;
1281                break;
1282        case e1000_82580:
1283                test = reg_test_82580;
1284                toggle = 0x7FEFF3FF;
1285                break;
1286        case e1000_82576:
1287                test = reg_test_82576;
1288                toggle = 0x7FFFF3FF;
1289                break;
1290        default:
1291                test = reg_test_82575;
1292                toggle = 0x7FFFF3FF;
1293                break;
1294        }
1295
1296        /* Because the status register is such a special case,
1297         * we handle it separately from the rest of the register
1298         * tests.  Some bits are read-only, some toggle, and some
1299         * are writable on newer MACs.
1300         */
1301        before = rd32(E1000_STATUS);
1302        value = (rd32(E1000_STATUS) & toggle);
1303        wr32(E1000_STATUS, toggle);
1304        after = rd32(E1000_STATUS) & toggle;
1305        if (value != after) {
1306                dev_err(&adapter->pdev->dev,
1307                        "failed STATUS register test got: 0x%08X expected: 0x%08X\n",
1308                        after, value);
1309                *data = 1;
1310                return 1;
1311        }
1312        /* restore previous status */
1313        wr32(E1000_STATUS, before);
1314
1315        /* Perform the remainder of the register test, looping through
1316         * the test table until we either fail or reach the null entry.
1317         */
1318        while (test->reg) {
1319                for (i = 0; i < test->array_len; i++) {
1320                        switch (test->test_type) {
1321                        case PATTERN_TEST:
1322                                REG_PATTERN_TEST(test->reg +
1323                                                (i * test->reg_offset),
1324                                                test->mask,
1325                                                test->write);
1326                                break;
1327                        case SET_READ_TEST:
1328                                REG_SET_AND_CHECK(test->reg +
1329                                                (i * test->reg_offset),
1330                                                test->mask,
1331                                                test->write);
1332                                break;
1333                        case WRITE_NO_TEST:
1334                                writel(test->write,
1335                                    (adapter->hw.hw_addr + test->reg)
1336                                        + (i * test->reg_offset));
1337                                break;
1338                        case TABLE32_TEST:
1339                                REG_PATTERN_TEST(test->reg + (i * 4),
1340                                                test->mask,
1341                                                test->write);
1342                                break;
1343                        case TABLE64_TEST_LO:
1344                                REG_PATTERN_TEST(test->reg + (i * 8),
1345                                                test->mask,
1346                                                test->write);
1347                                break;
1348                        case TABLE64_TEST_HI:
1349                                REG_PATTERN_TEST((test->reg + 4) + (i * 8),
1350                                                test->mask,
1351                                                test->write);
1352                                break;
1353                        }
1354                }
1355                test++;
1356        }
1357
1358        *data = 0;
1359        return 0;
1360}
1361
1362static int igb_eeprom_test(struct igb_adapter *adapter, u64 *data)
1363{
1364        struct e1000_hw *hw = &adapter->hw;
1365
1366        *data = 0;
1367
1368        /* Validate eeprom on all parts but flashless */
1369        switch (hw->mac.type) {
1370        case e1000_i210:
1371        case e1000_i211:
1372                if (igb_get_flash_presence_i210(hw)) {
1373                        if (adapter->hw.nvm.ops.validate(&adapter->hw) < 0)
1374                                *data = 2;
1375                }
1376                break;
1377        default:
1378                if (adapter->hw.nvm.ops.validate(&adapter->hw) < 0)
1379                        *data = 2;
1380                break;
1381        }
1382
1383        return *data;
1384}
1385
1386static irqreturn_t igb_test_intr(int irq, void *data)
1387{
1388        struct igb_adapter *adapter = (struct igb_adapter *) data;
1389        struct e1000_hw *hw = &adapter->hw;
1390
1391        adapter->test_icr |= rd32(E1000_ICR);
1392
1393        return IRQ_HANDLED;
1394}
1395
1396static int igb_intr_test(struct igb_adapter *adapter, u64 *data)
1397{
1398        struct e1000_hw *hw = &adapter->hw;
1399        struct net_device *netdev = adapter->netdev;
1400        u32 mask, ics_mask, i = 0, shared_int = true;
1401        u32 irq = adapter->pdev->irq;
1402
1403        *data = 0;
1404
1405        /* Hook up test interrupt handler just for this test */
1406        if (adapter->flags & IGB_FLAG_HAS_MSIX) {
1407                if (request_irq(adapter->msix_entries[0].vector,
1408                                igb_test_intr, 0, netdev->name, adapter)) {
1409                        *data = 1;
1410                        return -1;
1411                }
1412        } else if (adapter->flags & IGB_FLAG_HAS_MSI) {
1413                shared_int = false;
1414                if (request_irq(irq,
1415                                igb_test_intr, 0, netdev->name, adapter)) {
1416                        *data = 1;
1417                        return -1;
1418                }
1419        } else if (!request_irq(irq, igb_test_intr, IRQF_PROBE_SHARED,
1420                                netdev->name, adapter)) {
1421                shared_int = false;
1422        } else if (request_irq(irq, igb_test_intr, IRQF_SHARED,
1423                 netdev->name, adapter)) {
1424                *data = 1;
1425                return -1;
1426        }
1427        dev_info(&adapter->pdev->dev, "testing %s interrupt\n",
1428                (shared_int ? "shared" : "unshared"));
1429
1430        /* Disable all the interrupts */
1431        wr32(E1000_IMC, ~0);
1432        wrfl();
1433        usleep_range(10000, 11000);
1434
1435        /* Define all writable bits for ICS */
1436        switch (hw->mac.type) {
1437        case e1000_82575:
1438                ics_mask = 0x37F47EDD;
1439                break;
1440        case e1000_82576:
1441                ics_mask = 0x77D4FBFD;
1442                break;
1443        case e1000_82580:
1444                ics_mask = 0x77DCFED5;
1445                break;
1446        case e1000_i350:
1447        case e1000_i354:
1448        case e1000_i210:
1449        case e1000_i211:
1450                ics_mask = 0x77DCFED5;
1451                break;
1452        default:
1453                ics_mask = 0x7FFFFFFF;
1454                break;
1455        }
1456
1457        /* Test each interrupt */
1458        for (; i < 31; i++) {
1459                /* Interrupt to test */
1460                mask = BIT(i);
1461
1462                if (!(mask & ics_mask))
1463                        continue;
1464
1465                if (!shared_int) {
1466                        /* Disable the interrupt to be reported in
1467                         * the cause register and then force the same
1468                         * interrupt and see if one gets posted.  If
1469                         * an interrupt was posted to the bus, the
1470                         * test failed.
1471                         */
1472                        adapter->test_icr = 0;
1473
1474                        /* Flush any pending interrupts */
1475                        wr32(E1000_ICR, ~0);
1476
1477                        wr32(E1000_IMC, mask);
1478                        wr32(E1000_ICS, mask);
1479                        wrfl();
1480                        usleep_range(10000, 11000);
1481
1482                        if (adapter->test_icr & mask) {
1483                                *data = 3;
1484                                break;
1485                        }
1486                }
1487
1488                /* Enable the interrupt to be reported in
1489                 * the cause register and then force the same
1490                 * interrupt and see if one gets posted.  If
1491                 * an interrupt was not posted to the bus, the
1492                 * test failed.
1493                 */
1494                adapter->test_icr = 0;
1495
1496                /* Flush any pending interrupts */
1497                wr32(E1000_ICR, ~0);
1498
1499                wr32(E1000_IMS, mask);
1500                wr32(E1000_ICS, mask);
1501                wrfl();
1502                usleep_range(10000, 11000);
1503
1504                if (!(adapter->test_icr & mask)) {
1505                        *data = 4;
1506                        break;
1507                }
1508
1509                if (!shared_int) {
1510                        /* Disable the other interrupts to be reported in
1511                         * the cause register and then force the other
1512                         * interrupts and see if any get posted.  If
1513                         * an interrupt was posted to the bus, the
1514                         * test failed.
1515                         */
1516                        adapter->test_icr = 0;
1517
1518                        /* Flush any pending interrupts */
1519                        wr32(E1000_ICR, ~0);
1520
1521                        wr32(E1000_IMC, ~mask);
1522                        wr32(E1000_ICS, ~mask);
1523                        wrfl();
1524                        usleep_range(10000, 11000);
1525
1526                        if (adapter->test_icr & mask) {
1527                                *data = 5;
1528                                break;
1529                        }
1530                }
1531        }
1532
1533        /* Disable all the interrupts */
1534        wr32(E1000_IMC, ~0);
1535        wrfl();
1536        usleep_range(10000, 11000);
1537
1538        /* Unhook test interrupt handler */
1539        if (adapter->flags & IGB_FLAG_HAS_MSIX)
1540                free_irq(adapter->msix_entries[0].vector, adapter);
1541        else
1542                free_irq(irq, adapter);
1543
1544        return *data;
1545}
1546
1547static void igb_free_desc_rings(struct igb_adapter *adapter)
1548{
1549        igb_free_tx_resources(&adapter->test_tx_ring);
1550        igb_free_rx_resources(&adapter->test_rx_ring);
1551}
1552
1553static int igb_setup_desc_rings(struct igb_adapter *adapter)
1554{
1555        struct igb_ring *tx_ring = &adapter->test_tx_ring;
1556        struct igb_ring *rx_ring = &adapter->test_rx_ring;
1557        struct e1000_hw *hw = &adapter->hw;
1558        int ret_val;
1559
1560        /* Setup Tx descriptor ring and Tx buffers */
1561        tx_ring->count = IGB_DEFAULT_TXD;
1562        tx_ring->dev = &adapter->pdev->dev;
1563        tx_ring->netdev = adapter->netdev;
1564        tx_ring->reg_idx = adapter->vfs_allocated_count;
1565
1566        if (igb_setup_tx_resources(tx_ring)) {
1567                ret_val = 1;
1568                goto err_nomem;
1569        }
1570
1571        igb_setup_tctl(adapter);
1572        igb_configure_tx_ring(adapter, tx_ring);
1573
1574        /* Setup Rx descriptor ring and Rx buffers */
1575        rx_ring->count = IGB_DEFAULT_RXD;
1576        rx_ring->dev = &adapter->pdev->dev;
1577        rx_ring->netdev = adapter->netdev;
1578        rx_ring->reg_idx = adapter->vfs_allocated_count;
1579
1580        if (igb_setup_rx_resources(rx_ring)) {
1581                ret_val = 3;
1582                goto err_nomem;
1583        }
1584
1585        /* set the default queue to queue 0 of PF */
1586        wr32(E1000_MRQC, adapter->vfs_allocated_count << 3);
1587
1588        /* enable receive ring */
1589        igb_setup_rctl(adapter);
1590        igb_configure_rx_ring(adapter, rx_ring);
1591
1592        igb_alloc_rx_buffers(rx_ring, igb_desc_unused(rx_ring));
1593
1594        return 0;
1595
1596err_nomem:
1597        igb_free_desc_rings(adapter);
1598        return ret_val;
1599}
1600
1601static void igb_phy_disable_receiver(struct igb_adapter *adapter)
1602{
1603        struct e1000_hw *hw = &adapter->hw;
1604
1605        /* Write out to PHY registers 29 and 30 to disable the Receiver. */
1606        igb_write_phy_reg(hw, 29, 0x001F);
1607        igb_write_phy_reg(hw, 30, 0x8FFC);
1608        igb_write_phy_reg(hw, 29, 0x001A);
1609        igb_write_phy_reg(hw, 30, 0x8FF0);
1610}
1611
1612static int igb_integrated_phy_loopback(struct igb_adapter *adapter)
1613{
1614        struct e1000_hw *hw = &adapter->hw;
1615        u32 ctrl_reg = 0;
1616
1617        hw->mac.autoneg = false;
1618
1619        if (hw->phy.type == e1000_phy_m88) {
1620                if (hw->phy.id != I210_I_PHY_ID) {
1621                        /* Auto-MDI/MDIX Off */
1622                        igb_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
1623                        /* reset to update Auto-MDI/MDIX */
1624                        igb_write_phy_reg(hw, PHY_CONTROL, 0x9140);
1625                        /* autoneg off */
1626                        igb_write_phy_reg(hw, PHY_CONTROL, 0x8140);
1627                } else {
1628                        /* force 1000, set loopback  */
1629                        igb_write_phy_reg(hw, I347AT4_PAGE_SELECT, 0);
1630                        igb_write_phy_reg(hw, PHY_CONTROL, 0x4140);
1631                }
1632        } else if (hw->phy.type == e1000_phy_82580) {
1633                /* enable MII loopback */
1634                igb_write_phy_reg(hw, I82580_PHY_LBK_CTRL, 0x8041);
1635        }
1636
1637        /* add small delay to avoid loopback test failure */
1638        msleep(50);
1639
1640        /* force 1000, set loopback */
1641        igb_write_phy_reg(hw, PHY_CONTROL, 0x4140);
1642
1643        /* Now set up the MAC to the same speed/duplex as the PHY. */
1644        ctrl_reg = rd32(E1000_CTRL);
1645        ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
1646        ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
1647                     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
1648                     E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
1649                     E1000_CTRL_FD |     /* Force Duplex to FULL */
1650                     E1000_CTRL_SLU);    /* Set link up enable bit */
1651
1652        if (hw->phy.type == e1000_phy_m88)
1653                ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
1654
1655        wr32(E1000_CTRL, ctrl_reg);
1656
1657        /* Disable the receiver on the PHY so when a cable is plugged in, the
1658         * PHY does not begin to autoneg when a cable is reconnected to the NIC.
1659         */
1660        if (hw->phy.type == e1000_phy_m88)
1661                igb_phy_disable_receiver(adapter);
1662
1663        msleep(500);
1664        return 0;
1665}
1666
1667static int igb_set_phy_loopback(struct igb_adapter *adapter)
1668{
1669        return igb_integrated_phy_loopback(adapter);
1670}
1671
1672static int igb_setup_loopback_test(struct igb_adapter *adapter)
1673{
1674        struct e1000_hw *hw = &adapter->hw;
1675        u32 reg;
1676
1677        reg = rd32(E1000_CTRL_EXT);
1678
1679        /* use CTRL_EXT to identify link type as SGMII can appear as copper */
1680        if (reg & E1000_CTRL_EXT_LINK_MODE_MASK) {
1681                if ((hw->device_id == E1000_DEV_ID_DH89XXCC_SGMII) ||
1682                (hw->device_id == E1000_DEV_ID_DH89XXCC_SERDES) ||
1683                (hw->device_id == E1000_DEV_ID_DH89XXCC_BACKPLANE) ||
1684                (hw->device_id == E1000_DEV_ID_DH89XXCC_SFP) ||
1685                (hw->device_id == E1000_DEV_ID_I354_SGMII) ||
1686                (hw->device_id == E1000_DEV_ID_I354_BACKPLANE_2_5GBPS)) {
1687                        /* Enable DH89xxCC MPHY for near end loopback */
1688                        reg = rd32(E1000_MPHY_ADDR_CTL);
1689                        reg = (reg & E1000_MPHY_ADDR_CTL_OFFSET_MASK) |
1690                        E1000_MPHY_PCS_CLK_REG_OFFSET;
1691                        wr32(E1000_MPHY_ADDR_CTL, reg);
1692
1693                        reg = rd32(E1000_MPHY_DATA);
1694                        reg |= E1000_MPHY_PCS_CLK_REG_DIGINELBEN;
1695                        wr32(E1000_MPHY_DATA, reg);
1696                }
1697
1698                reg = rd32(E1000_RCTL);
1699                reg |= E1000_RCTL_LBM_TCVR;
1700                wr32(E1000_RCTL, reg);
1701
1702                wr32(E1000_SCTL, E1000_ENABLE_SERDES_LOOPBACK);
1703
1704                reg = rd32(E1000_CTRL);
1705                reg &= ~(E1000_CTRL_RFCE |
1706                         E1000_CTRL_TFCE |
1707                         E1000_CTRL_LRST);
1708                reg |= E1000_CTRL_SLU |
1709                       E1000_CTRL_FD;
1710                wr32(E1000_CTRL, reg);
1711
1712                /* Unset switch control to serdes energy detect */
1713                reg = rd32(E1000_CONNSW);
1714                reg &= ~E1000_CONNSW_ENRGSRC;
1715                wr32(E1000_CONNSW, reg);
1716
1717                /* Unset sigdetect for SERDES loopback on
1718                 * 82580 and newer devices.
1719                 */
1720                if (hw->mac.type >= e1000_82580) {
1721                        reg = rd32(E1000_PCS_CFG0);
1722                        reg |= E1000_PCS_CFG_IGN_SD;
1723                        wr32(E1000_PCS_CFG0, reg);
1724                }
1725
1726                /* Set PCS register for forced speed */
1727                reg = rd32(E1000_PCS_LCTL);
1728                reg &= ~E1000_PCS_LCTL_AN_ENABLE;     /* Disable Autoneg*/
1729                reg |= E1000_PCS_LCTL_FLV_LINK_UP |   /* Force link up */
1730                       E1000_PCS_LCTL_FSV_1000 |      /* Force 1000    */
1731                       E1000_PCS_LCTL_FDV_FULL |      /* SerDes Full duplex */
1732                       E1000_PCS_LCTL_FSD |           /* Force Speed */
1733                       E1000_PCS_LCTL_FORCE_LINK;     /* Force Link */
1734                wr32(E1000_PCS_LCTL, reg);
1735
1736                return 0;
1737        }
1738
1739        return igb_set_phy_loopback(adapter);
1740}
1741
1742static void igb_loopback_cleanup(struct igb_adapter *adapter)
1743{
1744        struct e1000_hw *hw = &adapter->hw;
1745        u32 rctl;
1746        u16 phy_reg;
1747
1748        if ((hw->device_id == E1000_DEV_ID_DH89XXCC_SGMII) ||
1749        (hw->device_id == E1000_DEV_ID_DH89XXCC_SERDES) ||
1750        (hw->device_id == E1000_DEV_ID_DH89XXCC_BACKPLANE) ||
1751        (hw->device_id == E1000_DEV_ID_DH89XXCC_SFP) ||
1752        (hw->device_id == E1000_DEV_ID_I354_SGMII)) {
1753                u32 reg;
1754
1755                /* Disable near end loopback on DH89xxCC */
1756                reg = rd32(E1000_MPHY_ADDR_CTL);
1757                reg = (reg & E1000_MPHY_ADDR_CTL_OFFSET_MASK) |
1758                E1000_MPHY_PCS_CLK_REG_OFFSET;
1759                wr32(E1000_MPHY_ADDR_CTL, reg);
1760
1761                reg = rd32(E1000_MPHY_DATA);
1762                reg &= ~E1000_MPHY_PCS_CLK_REG_DIGINELBEN;
1763                wr32(E1000_MPHY_DATA, reg);
1764        }
1765
1766        rctl = rd32(E1000_RCTL);
1767        rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
1768        wr32(E1000_RCTL, rctl);
1769
1770        hw->mac.autoneg = true;
1771        igb_read_phy_reg(hw, PHY_CONTROL, &phy_reg);
1772        if (phy_reg & MII_CR_LOOPBACK) {
1773                phy_reg &= ~MII_CR_LOOPBACK;
1774                igb_write_phy_reg(hw, PHY_CONTROL, phy_reg);
1775                igb_phy_sw_reset(hw);
1776        }
1777}
1778
1779static void igb_create_lbtest_frame(struct sk_buff *skb,
1780                                    unsigned int frame_size)
1781{
1782        memset(skb->data, 0xFF, frame_size);
1783        frame_size /= 2;
1784        memset(&skb->data[frame_size], 0xAA, frame_size - 1);
1785        memset(&skb->data[frame_size + 10], 0xBE, 1);
1786        memset(&skb->data[frame_size + 12], 0xAF, 1);
1787}
1788
1789static int igb_check_lbtest_frame(struct igb_rx_buffer *rx_buffer,
1790                                  unsigned int frame_size)
1791{
1792        unsigned char *data;
1793        bool match = true;
1794
1795        frame_size >>= 1;
1796
1797        data = kmap(rx_buffer->page);
1798
1799        if (data[3] != 0xFF ||
1800            data[frame_size + 10] != 0xBE ||
1801            data[frame_size + 12] != 0xAF)
1802                match = false;
1803
1804        kunmap(rx_buffer->page);
1805
1806        return match;
1807}
1808
1809static int igb_clean_test_rings(struct igb_ring *rx_ring,
1810                                struct igb_ring *tx_ring,
1811                                unsigned int size)
1812{
1813        union e1000_adv_rx_desc *rx_desc;
1814        struct igb_rx_buffer *rx_buffer_info;
1815        struct igb_tx_buffer *tx_buffer_info;
1816        u16 rx_ntc, tx_ntc, count = 0;
1817
1818        /* initialize next to clean and descriptor values */
1819        rx_ntc = rx_ring->next_to_clean;
1820        tx_ntc = tx_ring->next_to_clean;
1821        rx_desc = IGB_RX_DESC(rx_ring, rx_ntc);
1822
1823        while (rx_desc->wb.upper.length) {
1824                /* check Rx buffer */
1825                rx_buffer_info = &rx_ring->rx_buffer_info[rx_ntc];
1826
1827                /* sync Rx buffer for CPU read */
1828                dma_sync_single_for_cpu(rx_ring->dev,
1829                                        rx_buffer_info->dma,
1830                                        size,
1831                                        DMA_FROM_DEVICE);
1832
1833                /* verify contents of skb */
1834                if (igb_check_lbtest_frame(rx_buffer_info, size))
1835                        count++;
1836
1837                /* sync Rx buffer for device write */
1838                dma_sync_single_for_device(rx_ring->dev,
1839                                           rx_buffer_info->dma,
1840                                           size,
1841                                           DMA_FROM_DEVICE);
1842
1843                /* unmap buffer on Tx side */
1844                tx_buffer_info = &tx_ring->tx_buffer_info[tx_ntc];
1845
1846                /* Free all the Tx ring sk_buffs */
1847                dev_kfree_skb_any(tx_buffer_info->skb);
1848
1849                /* unmap skb header data */
1850                dma_unmap_single(tx_ring->dev,
1851                                 dma_unmap_addr(tx_buffer_info, dma),
1852                                 dma_unmap_len(tx_buffer_info, len),
1853                                 DMA_TO_DEVICE);
1854                dma_unmap_len_set(tx_buffer_info, len, 0);
1855
1856                /* increment Rx/Tx next to clean counters */
1857                rx_ntc++;
1858                if (rx_ntc == rx_ring->count)
1859                        rx_ntc = 0;
1860                tx_ntc++;
1861                if (tx_ntc == tx_ring->count)
1862                        tx_ntc = 0;
1863
1864                /* fetch next descriptor */
1865                rx_desc = IGB_RX_DESC(rx_ring, rx_ntc);
1866        }
1867
1868        netdev_tx_reset_queue(txring_txq(tx_ring));
1869
1870        /* re-map buffers to ring, store next to clean values */
1871        igb_alloc_rx_buffers(rx_ring, count);
1872        rx_ring->next_to_clean = rx_ntc;
1873        tx_ring->next_to_clean = tx_ntc;
1874
1875        return count;
1876}
1877
1878static int igb_run_loopback_test(struct igb_adapter *adapter)
1879{
1880        struct igb_ring *tx_ring = &adapter->test_tx_ring;
1881        struct igb_ring *rx_ring = &adapter->test_rx_ring;
1882        u16 i, j, lc, good_cnt;
1883        int ret_val = 0;
1884        unsigned int size = IGB_RX_HDR_LEN;
1885        netdev_tx_t tx_ret_val;
1886        struct sk_buff *skb;
1887
1888        /* allocate test skb */
1889        skb = alloc_skb(size, GFP_KERNEL);
1890        if (!skb)
1891                return 11;
1892
1893        /* place data into test skb */
1894        igb_create_lbtest_frame(skb, size);
1895        skb_put(skb, size);
1896
1897        /* Calculate the loop count based on the largest descriptor ring
1898         * The idea is to wrap the largest ring a number of times using 64
1899         * send/receive pairs during each loop
1900         */
1901
1902        if (rx_ring->count <= tx_ring->count)
1903                lc = ((tx_ring->count / 64) * 2) + 1;
1904        else
1905                lc = ((rx_ring->count / 64) * 2) + 1;
1906
1907        for (j = 0; j <= lc; j++) { /* loop count loop */
1908                /* reset count of good packets */
1909                good_cnt = 0;
1910
1911                /* place 64 packets on the transmit queue*/
1912                for (i = 0; i < 64; i++) {
1913                        skb_get(skb);
1914                        tx_ret_val = igb_xmit_frame_ring(skb, tx_ring);
1915                        if (tx_ret_val == NETDEV_TX_OK)
1916                                good_cnt++;
1917                }
1918
1919                if (good_cnt != 64) {
1920                        ret_val = 12;
1921                        break;
1922                }
1923
1924                /* allow 200 milliseconds for packets to go from Tx to Rx */
1925                msleep(200);
1926
1927                good_cnt = igb_clean_test_rings(rx_ring, tx_ring, size);
1928                if (good_cnt != 64) {
1929                        ret_val = 13;
1930                        break;
1931                }
1932        } /* end loop count loop */
1933
1934        /* free the original skb */
1935        kfree_skb(skb);
1936
1937        return ret_val;
1938}
1939
1940static int igb_loopback_test(struct igb_adapter *adapter, u64 *data)
1941{
1942        /* PHY loopback cannot be performed if SoL/IDER
1943         * sessions are active
1944         */
1945        if (igb_check_reset_block(&adapter->hw)) {
1946                dev_err(&adapter->pdev->dev,
1947                        "Cannot do PHY loopback test when SoL/IDER is active.\n");
1948                *data = 0;
1949                goto out;
1950        }
1951
1952        if (adapter->hw.mac.type == e1000_i354) {
1953                dev_info(&adapter->pdev->dev,
1954                        "Loopback test not supported on i354.\n");
1955                *data = 0;
1956                goto out;
1957        }
1958        *data = igb_setup_desc_rings(adapter);
1959        if (*data)
1960                goto out;
1961        *data = igb_setup_loopback_test(adapter);
1962        if (*data)
1963                goto err_loopback;
1964        *data = igb_run_loopback_test(adapter);
1965        igb_loopback_cleanup(adapter);
1966
1967err_loopback:
1968        igb_free_desc_rings(adapter);
1969out:
1970        return *data;
1971}
1972
1973static int igb_link_test(struct igb_adapter *adapter, u64 *data)
1974{
1975        struct e1000_hw *hw = &adapter->hw;
1976        *data = 0;
1977        if (hw->phy.media_type == e1000_media_type_internal_serdes) {
1978                int i = 0;
1979
1980                hw->mac.serdes_has_link = false;
1981
1982                /* On some blade server designs, link establishment
1983                 * could take as long as 2-3 minutes
1984                 */
1985                do {
1986                        hw->mac.ops.check_for_link(&adapter->hw);
1987                        if (hw->mac.serdes_has_link)
1988                                return *data;
1989                        msleep(20);
1990                } while (i++ < 3750);
1991
1992                *data = 1;
1993        } else {
1994                hw->mac.ops.check_for_link(&adapter->hw);
1995                if (hw->mac.autoneg)
1996                        msleep(5000);
1997
1998                if (!(rd32(E1000_STATUS) & E1000_STATUS_LU))
1999                        *data = 1;
2000        }
2001        return *data;
2002}
2003
2004static void igb_diag_test(struct net_device *netdev,
2005                          struct ethtool_test *eth_test, u64 *data)
2006{
2007        struct igb_adapter *adapter = netdev_priv(netdev);
2008        u16 autoneg_advertised;
2009        u8 forced_speed_duplex, autoneg;
2010        bool if_running = netif_running(netdev);
2011
2012        set_bit(__IGB_TESTING, &adapter->state);
2013
2014        /* can't do offline tests on media switching devices */
2015        if (adapter->hw.dev_spec._82575.mas_capable)
2016                eth_test->flags &= ~ETH_TEST_FL_OFFLINE;
2017        if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2018                /* Offline tests */
2019
2020                /* save speed, duplex, autoneg settings */
2021                autoneg_advertised = adapter->hw.phy.autoneg_advertised;
2022                forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
2023                autoneg = adapter->hw.mac.autoneg;
2024
2025                dev_info(&adapter->pdev->dev, "offline testing starting\n");
2026
2027                /* power up link for link test */
2028                igb_power_up_link(adapter);
2029
2030                /* Link test performed before hardware reset so autoneg doesn't
2031                 * interfere with test result
2032                 */
2033                if (igb_link_test(adapter, &data[TEST_LINK]))
2034                        eth_test->flags |= ETH_TEST_FL_FAILED;
2035
2036                if (if_running)
2037                        /* indicate we're in test mode */
2038                        igb_close(netdev);
2039                else
2040                        igb_reset(adapter);
2041
2042                if (igb_reg_test(adapter, &data[TEST_REG]))
2043                        eth_test->flags |= ETH_TEST_FL_FAILED;
2044
2045                igb_reset(adapter);
2046                if (igb_eeprom_test(adapter, &data[TEST_EEP]))
2047                        eth_test->flags |= ETH_TEST_FL_FAILED;
2048
2049                igb_reset(adapter);
2050                if (igb_intr_test(adapter, &data[TEST_IRQ]))
2051                        eth_test->flags |= ETH_TEST_FL_FAILED;
2052
2053                igb_reset(adapter);
2054                /* power up link for loopback test */
2055                igb_power_up_link(adapter);
2056                if (igb_loopback_test(adapter, &data[TEST_LOOP]))
2057                        eth_test->flags |= ETH_TEST_FL_FAILED;
2058
2059                /* restore speed, duplex, autoneg settings */
2060                adapter->hw.phy.autoneg_advertised = autoneg_advertised;
2061                adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
2062                adapter->hw.mac.autoneg = autoneg;
2063
2064                /* force this routine to wait until autoneg complete/timeout */
2065                adapter->hw.phy.autoneg_wait_to_complete = true;
2066                igb_reset(adapter);
2067                adapter->hw.phy.autoneg_wait_to_complete = false;
2068
2069                clear_bit(__IGB_TESTING, &adapter->state);
2070                if (if_running)
2071                        igb_open(netdev);
2072        } else {
2073                dev_info(&adapter->pdev->dev, "online testing starting\n");
2074
2075                /* PHY is powered down when interface is down */
2076                if (if_running && igb_link_test(adapter, &data[TEST_LINK]))
2077                        eth_test->flags |= ETH_TEST_FL_FAILED;
2078                else
2079                        data[TEST_LINK] = 0;
2080
2081                /* Online tests aren't run; pass by default */
2082                data[TEST_REG] = 0;
2083                data[TEST_EEP] = 0;
2084                data[TEST_IRQ] = 0;
2085                data[TEST_LOOP] = 0;
2086
2087                clear_bit(__IGB_TESTING, &adapter->state);
2088        }
2089        msleep_interruptible(4 * 1000);
2090}
2091
2092static void igb_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2093{
2094        struct igb_adapter *adapter = netdev_priv(netdev);
2095
2096        wol->wolopts = 0;
2097
2098        if (!(adapter->flags & IGB_FLAG_WOL_SUPPORTED))
2099                return;
2100
2101        wol->supported = WAKE_UCAST | WAKE_MCAST |
2102                         WAKE_BCAST | WAKE_MAGIC |
2103                         WAKE_PHY;
2104
2105        /* apply any specific unsupported masks here */
2106        switch (adapter->hw.device_id) {
2107        default:
2108                break;
2109        }
2110
2111        if (adapter->wol & E1000_WUFC_EX)
2112                wol->wolopts |= WAKE_UCAST;
2113        if (adapter->wol & E1000_WUFC_MC)
2114                wol->wolopts |= WAKE_MCAST;
2115        if (adapter->wol & E1000_WUFC_BC)
2116                wol->wolopts |= WAKE_BCAST;
2117        if (adapter->wol & E1000_WUFC_MAG)
2118                wol->wolopts |= WAKE_MAGIC;
2119        if (adapter->wol & E1000_WUFC_LNKC)
2120                wol->wolopts |= WAKE_PHY;
2121}
2122
2123static int igb_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2124{
2125        struct igb_adapter *adapter = netdev_priv(netdev);
2126
2127        if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER))
2128                return -EOPNOTSUPP;
2129
2130        if (!(adapter->flags & IGB_FLAG_WOL_SUPPORTED))
2131                return wol->wolopts ? -EOPNOTSUPP : 0;
2132
2133        /* these settings will always override what we currently have */
2134        adapter->wol = 0;
2135
2136        if (wol->wolopts & WAKE_UCAST)
2137                adapter->wol |= E1000_WUFC_EX;
2138        if (wol->wolopts & WAKE_MCAST)
2139                adapter->wol |= E1000_WUFC_MC;
2140        if (wol->wolopts & WAKE_BCAST)
2141                adapter->wol |= E1000_WUFC_BC;
2142        if (wol->wolopts & WAKE_MAGIC)
2143                adapter->wol |= E1000_WUFC_MAG;
2144        if (wol->wolopts & WAKE_PHY)
2145                adapter->wol |= E1000_WUFC_LNKC;
2146        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
2147
2148        return 0;
2149}
2150
2151/* bit defines for adapter->led_status */
2152#define IGB_LED_ON              0
2153
2154static int igb_set_phys_id(struct net_device *netdev,
2155                           enum ethtool_phys_id_state state)
2156{
2157        struct igb_adapter *adapter = netdev_priv(netdev);
2158        struct e1000_hw *hw = &adapter->hw;
2159
2160        switch (state) {
2161        case ETHTOOL_ID_ACTIVE:
2162                igb_blink_led(hw);
2163                return 2;
2164        case ETHTOOL_ID_ON:
2165                igb_blink_led(hw);
2166                break;
2167        case ETHTOOL_ID_OFF:
2168                igb_led_off(hw);
2169                break;
2170        case ETHTOOL_ID_INACTIVE:
2171                igb_led_off(hw);
2172                clear_bit(IGB_LED_ON, &adapter->led_status);
2173                igb_cleanup_led(hw);
2174                break;
2175        }
2176
2177        return 0;
2178}
2179
2180static int igb_set_coalesce(struct net_device *netdev,
2181                            struct ethtool_coalesce *ec)
2182{
2183        struct igb_adapter *adapter = netdev_priv(netdev);
2184        int i;
2185
2186        if ((ec->rx_coalesce_usecs > IGB_MAX_ITR_USECS) ||
2187            ((ec->rx_coalesce_usecs > 3) &&
2188             (ec->rx_coalesce_usecs < IGB_MIN_ITR_USECS)) ||
2189            (ec->rx_coalesce_usecs == 2))
2190                return -EINVAL;
2191
2192        if ((ec->tx_coalesce_usecs > IGB_MAX_ITR_USECS) ||
2193            ((ec->tx_coalesce_usecs > 3) &&
2194             (ec->tx_coalesce_usecs < IGB_MIN_ITR_USECS)) ||
2195            (ec->tx_coalesce_usecs == 2))
2196                return -EINVAL;
2197
2198        if ((adapter->flags & IGB_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
2199                return -EINVAL;
2200
2201        /* If ITR is disabled, disable DMAC */
2202        if (ec->rx_coalesce_usecs == 0) {
2203                if (adapter->flags & IGB_FLAG_DMAC)
2204                        adapter->flags &= ~IGB_FLAG_DMAC;
2205        }
2206
2207        /* convert to rate of irq's per second */
2208        if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
2209                adapter->rx_itr_setting = ec->rx_coalesce_usecs;
2210        else
2211                adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
2212
2213        /* convert to rate of irq's per second */
2214        if (adapter->flags & IGB_FLAG_QUEUE_PAIRS)
2215                adapter->tx_itr_setting = adapter->rx_itr_setting;
2216        else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
2217                adapter->tx_itr_setting = ec->tx_coalesce_usecs;
2218        else
2219                adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
2220
2221        for (i = 0; i < adapter->num_q_vectors; i++) {
2222                struct igb_q_vector *q_vector = adapter->q_vector[i];
2223                q_vector->tx.work_limit = adapter->tx_work_limit;
2224                if (q_vector->rx.ring)
2225                        q_vector->itr_val = adapter->rx_itr_setting;
2226                else
2227                        q_vector->itr_val = adapter->tx_itr_setting;
2228                if (q_vector->itr_val && q_vector->itr_val <= 3)
2229                        q_vector->itr_val = IGB_START_ITR;
2230                q_vector->set_itr = 1;
2231        }
2232
2233        return 0;
2234}
2235
2236static int igb_get_coalesce(struct net_device *netdev,
2237                            struct ethtool_coalesce *ec)
2238{
2239        struct igb_adapter *adapter = netdev_priv(netdev);
2240
2241        if (adapter->rx_itr_setting <= 3)
2242                ec->rx_coalesce_usecs = adapter->rx_itr_setting;
2243        else
2244                ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
2245
2246        if (!(adapter->flags & IGB_FLAG_QUEUE_PAIRS)) {
2247                if (adapter->tx_itr_setting <= 3)
2248                        ec->tx_coalesce_usecs = adapter->tx_itr_setting;
2249                else
2250                        ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
2251        }
2252
2253        return 0;
2254}
2255
2256static int igb_nway_reset(struct net_device *netdev)
2257{
2258        struct igb_adapter *adapter = netdev_priv(netdev);
2259        if (netif_running(netdev))
2260                igb_reinit_locked(adapter);
2261        return 0;
2262}
2263
2264static int igb_get_sset_count(struct net_device *netdev, int sset)
2265{
2266        switch (sset) {
2267        case ETH_SS_STATS:
2268                return IGB_STATS_LEN;
2269        case ETH_SS_TEST:
2270                return IGB_TEST_LEN;
2271        case ETH_SS_PRIV_FLAGS:
2272                return IGB_PRIV_FLAGS_STR_LEN;
2273        default:
2274                return -ENOTSUPP;
2275        }
2276}
2277
2278static void igb_get_ethtool_stats(struct net_device *netdev,
2279                                  struct ethtool_stats *stats, u64 *data)
2280{
2281        struct igb_adapter *adapter = netdev_priv(netdev);
2282        struct rtnl_link_stats64 *net_stats = &adapter->stats64;
2283        unsigned int start;
2284        struct igb_ring *ring;
2285        int i, j;
2286        char *p;
2287
2288        spin_lock(&adapter->stats64_lock);
2289        igb_update_stats(adapter);
2290
2291        for (i = 0; i < IGB_GLOBAL_STATS_LEN; i++) {
2292                p = (char *)adapter + igb_gstrings_stats[i].stat_offset;
2293                data[i] = (igb_gstrings_stats[i].sizeof_stat ==
2294                        sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
2295        }
2296        for (j = 0; j < IGB_NETDEV_STATS_LEN; j++, i++) {
2297                p = (char *)net_stats + igb_gstrings_net_stats[j].stat_offset;
2298                data[i] = (igb_gstrings_net_stats[j].sizeof_stat ==
2299                        sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
2300        }
2301        for (j = 0; j < adapter->num_tx_queues; j++) {
2302                u64     restart2;
2303
2304                ring = adapter->tx_ring[j];
2305                do {
2306                        start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
2307                        data[i]   = ring->tx_stats.packets;
2308                        data[i+1] = ring->tx_stats.bytes;
2309                        data[i+2] = ring->tx_stats.restart_queue;
2310                } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
2311                do {
2312                        start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
2313                        restart2  = ring->tx_stats.restart_queue2;
2314                } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
2315                data[i+2] += restart2;
2316
2317                i += IGB_TX_QUEUE_STATS_LEN;
2318        }
2319        for (j = 0; j < adapter->num_rx_queues; j++) {
2320                ring = adapter->rx_ring[j];
2321                do {
2322                        start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
2323                        data[i]   = ring->rx_stats.packets;
2324                        data[i+1] = ring->rx_stats.bytes;
2325                        data[i+2] = ring->rx_stats.drops;
2326                        data[i+3] = ring->rx_stats.csum_err;
2327                        data[i+4] = ring->rx_stats.alloc_failed;
2328                } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
2329                i += IGB_RX_QUEUE_STATS_LEN;
2330        }
2331        spin_unlock(&adapter->stats64_lock);
2332}
2333
2334static void igb_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
2335{
2336        struct igb_adapter *adapter = netdev_priv(netdev);
2337        u8 *p = data;
2338        int i;
2339
2340        switch (stringset) {
2341        case ETH_SS_TEST:
2342                memcpy(data, *igb_gstrings_test,
2343                        IGB_TEST_LEN*ETH_GSTRING_LEN);
2344                break;
2345        case ETH_SS_STATS:
2346                for (i = 0; i < IGB_GLOBAL_STATS_LEN; i++) {
2347                        memcpy(p, igb_gstrings_stats[i].stat_string,
2348                               ETH_GSTRING_LEN);
2349                        p += ETH_GSTRING_LEN;
2350                }
2351                for (i = 0; i < IGB_NETDEV_STATS_LEN; i++) {
2352                        memcpy(p, igb_gstrings_net_stats[i].stat_string,
2353                               ETH_GSTRING_LEN);
2354                        p += ETH_GSTRING_LEN;
2355                }
2356                for (i = 0; i < adapter->num_tx_queues; i++) {
2357                        sprintf(p, "tx_queue_%u_packets", i);
2358                        p += ETH_GSTRING_LEN;
2359                        sprintf(p, "tx_queue_%u_bytes", i);
2360                        p += ETH_GSTRING_LEN;
2361                        sprintf(p, "tx_queue_%u_restart", i);
2362                        p += ETH_GSTRING_LEN;
2363                }
2364                for (i = 0; i < adapter->num_rx_queues; i++) {
2365                        sprintf(p, "rx_queue_%u_packets", i);
2366                        p += ETH_GSTRING_LEN;
2367                        sprintf(p, "rx_queue_%u_bytes", i);
2368                        p += ETH_GSTRING_LEN;
2369                        sprintf(p, "rx_queue_%u_drops", i);
2370                        p += ETH_GSTRING_LEN;
2371                        sprintf(p, "rx_queue_%u_csum_err", i);
2372                        p += ETH_GSTRING_LEN;
2373                        sprintf(p, "rx_queue_%u_alloc_failed", i);
2374                        p += ETH_GSTRING_LEN;
2375                }
2376                /* BUG_ON(p - data != IGB_STATS_LEN * ETH_GSTRING_LEN); */
2377                break;
2378        case ETH_SS_PRIV_FLAGS:
2379                memcpy(data, igb_priv_flags_strings,
2380                       IGB_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
2381                break;
2382        }
2383}
2384
2385static int igb_get_ts_info(struct net_device *dev,
2386                           struct ethtool_ts_info *info)
2387{
2388        struct igb_adapter *adapter = netdev_priv(dev);
2389
2390        if (adapter->ptp_clock)
2391                info->phc_index = ptp_clock_index(adapter->ptp_clock);
2392        else
2393                info->phc_index = -1;
2394
2395        switch (adapter->hw.mac.type) {
2396        case e1000_82575:
2397                info->so_timestamping =
2398                        SOF_TIMESTAMPING_TX_SOFTWARE |
2399                        SOF_TIMESTAMPING_RX_SOFTWARE |
2400                        SOF_TIMESTAMPING_SOFTWARE;
2401                return 0;
2402        case e1000_82576:
2403        case e1000_82580:
2404        case e1000_i350:
2405        case e1000_i354:
2406        case e1000_i210:
2407        case e1000_i211:
2408                info->so_timestamping =
2409                        SOF_TIMESTAMPING_TX_SOFTWARE |
2410                        SOF_TIMESTAMPING_RX_SOFTWARE |
2411                        SOF_TIMESTAMPING_SOFTWARE |
2412                        SOF_TIMESTAMPING_TX_HARDWARE |
2413                        SOF_TIMESTAMPING_RX_HARDWARE |
2414                        SOF_TIMESTAMPING_RAW_HARDWARE;
2415
2416                info->tx_types =
2417                        BIT(HWTSTAMP_TX_OFF) |
2418                        BIT(HWTSTAMP_TX_ON);
2419
2420                info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
2421
2422                /* 82576 does not support timestamping all packets. */
2423                if (adapter->hw.mac.type >= e1000_82580)
2424                        info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
2425                else
2426                        info->rx_filters |=
2427                                BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2428                                BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2429                                BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
2430
2431                return 0;
2432        default:
2433                return -EOPNOTSUPP;
2434        }
2435}
2436
2437#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
2438static int igb_get_ethtool_nfc_entry(struct igb_adapter *adapter,
2439                                     struct ethtool_rxnfc *cmd)
2440{
2441        struct ethtool_rx_flow_spec *fsp = &cmd->fs;
2442        struct igb_nfc_filter *rule = NULL;
2443
2444        /* report total rule count */
2445        cmd->data = IGB_MAX_RXNFC_FILTERS;
2446
2447        hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
2448                if (fsp->location <= rule->sw_idx)
2449                        break;
2450        }
2451
2452        if (!rule || fsp->location != rule->sw_idx)
2453                return -EINVAL;
2454
2455        if (rule->filter.match_flags) {
2456                fsp->flow_type = ETHER_FLOW;
2457                fsp->ring_cookie = rule->action;
2458                if (rule->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE) {
2459                        fsp->h_u.ether_spec.h_proto = rule->filter.etype;
2460                        fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
2461                }
2462                if (rule->filter.match_flags & IGB_FILTER_FLAG_VLAN_TCI) {
2463                        fsp->flow_type |= FLOW_EXT;
2464                        fsp->h_ext.vlan_tci = rule->filter.vlan_tci;
2465                        fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
2466                }
2467                if (rule->filter.match_flags & IGB_FILTER_FLAG_DST_MAC_ADDR) {
2468                        ether_addr_copy(fsp->h_u.ether_spec.h_dest,
2469                                        rule->filter.dst_addr);
2470                        /* As we only support matching by the full
2471                         * mask, return the mask to userspace
2472                         */
2473                        eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
2474                }
2475                if (rule->filter.match_flags & IGB_FILTER_FLAG_SRC_MAC_ADDR) {
2476                        ether_addr_copy(fsp->h_u.ether_spec.h_source,
2477                                        rule->filter.src_addr);
2478                        /* As we only support matching by the full
2479                         * mask, return the mask to userspace
2480                         */
2481                        eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
2482                }
2483
2484                return 0;
2485        }
2486        return -EINVAL;
2487}
2488
2489static int igb_get_ethtool_nfc_all(struct igb_adapter *adapter,
2490                                   struct ethtool_rxnfc *cmd,
2491                                   u32 *rule_locs)
2492{
2493        struct igb_nfc_filter *rule;
2494        int cnt = 0;
2495
2496        /* report total rule count */
2497        cmd->data = IGB_MAX_RXNFC_FILTERS;
2498
2499        hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
2500                if (cnt == cmd->rule_cnt)
2501                        return -EMSGSIZE;
2502                rule_locs[cnt] = rule->sw_idx;
2503                cnt++;
2504        }
2505
2506        cmd->rule_cnt = cnt;
2507
2508        return 0;
2509}
2510
2511static int igb_get_rss_hash_opts(struct igb_adapter *adapter,
2512                                 struct ethtool_rxnfc *cmd)
2513{
2514        cmd->data = 0;
2515
2516        /* Report default options for RSS on igb */
2517        switch (cmd->flow_type) {
2518        case TCP_V4_FLOW:
2519                cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2520                /* Fall through */
2521        case UDP_V4_FLOW:
2522                if (adapter->flags & IGB_FLAG_RSS_FIELD_IPV4_UDP)
2523                        cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2524                /* Fall through */
2525        case SCTP_V4_FLOW:
2526        case AH_ESP_V4_FLOW:
2527        case AH_V4_FLOW:
2528        case ESP_V4_FLOW:
2529        case IPV4_FLOW:
2530                cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2531                break;
2532        case TCP_V6_FLOW:
2533                cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2534                /* Fall through */
2535        case UDP_V6_FLOW:
2536                if (adapter->flags & IGB_FLAG_RSS_FIELD_IPV6_UDP)
2537                        cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2538                /* Fall through */
2539        case SCTP_V6_FLOW:
2540        case AH_ESP_V6_FLOW:
2541        case AH_V6_FLOW:
2542        case ESP_V6_FLOW:
2543        case IPV6_FLOW:
2544                cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2545                break;
2546        default:
2547                return -EINVAL;
2548        }
2549
2550        return 0;
2551}
2552
2553static int igb_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
2554                         u32 *rule_locs)
2555{
2556        struct igb_adapter *adapter = netdev_priv(dev);
2557        int ret = -EOPNOTSUPP;
2558
2559        switch (cmd->cmd) {
2560        case ETHTOOL_GRXRINGS:
2561                cmd->data = adapter->num_rx_queues;
2562                ret = 0;
2563                break;
2564        case ETHTOOL_GRXCLSRLCNT:
2565                cmd->rule_cnt = adapter->nfc_filter_count;
2566                ret = 0;
2567                break;
2568        case ETHTOOL_GRXCLSRULE:
2569                ret = igb_get_ethtool_nfc_entry(adapter, cmd);
2570                break;
2571        case ETHTOOL_GRXCLSRLALL:
2572                ret = igb_get_ethtool_nfc_all(adapter, cmd, rule_locs);
2573                break;
2574        case ETHTOOL_GRXFH:
2575                ret = igb_get_rss_hash_opts(adapter, cmd);
2576                break;
2577        default:
2578                break;
2579        }
2580
2581        return ret;
2582}
2583
2584#define UDP_RSS_FLAGS (IGB_FLAG_RSS_FIELD_IPV4_UDP | \
2585                       IGB_FLAG_RSS_FIELD_IPV6_UDP)
2586static int igb_set_rss_hash_opt(struct igb_adapter *adapter,
2587                                struct ethtool_rxnfc *nfc)
2588{
2589        u32 flags = adapter->flags;
2590
2591        /* RSS does not support anything other than hashing
2592         * to queues on src and dst IPs and ports
2593         */
2594        if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2595                          RXH_L4_B_0_1 | RXH_L4_B_2_3))
2596                return -EINVAL;
2597
2598        switch (nfc->flow_type) {
2599        case TCP_V4_FLOW:
2600        case TCP_V6_FLOW:
2601                if (!(nfc->data & RXH_IP_SRC) ||
2602                    !(nfc->data & RXH_IP_DST) ||
2603                    !(nfc->data & RXH_L4_B_0_1) ||
2604                    !(nfc->data & RXH_L4_B_2_3))
2605                        return -EINVAL;
2606                break;
2607        case UDP_V4_FLOW:
2608                if (!(nfc->data & RXH_IP_SRC) ||
2609                    !(nfc->data & RXH_IP_DST))
2610                        return -EINVAL;
2611                switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2612                case 0:
2613                        flags &= ~IGB_FLAG_RSS_FIELD_IPV4_UDP;
2614                        break;
2615                case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2616                        flags |= IGB_FLAG_RSS_FIELD_IPV4_UDP;
2617                        break;
2618                default:
2619                        return -EINVAL;
2620                }
2621                break;
2622        case UDP_V6_FLOW:
2623                if (!(nfc->data & RXH_IP_SRC) ||
2624                    !(nfc->data & RXH_IP_DST))
2625                        return -EINVAL;
2626                switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2627                case 0:
2628                        flags &= ~IGB_FLAG_RSS_FIELD_IPV6_UDP;
2629                        break;
2630                case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2631                        flags |= IGB_FLAG_RSS_FIELD_IPV6_UDP;
2632                        break;
2633                default:
2634                        return -EINVAL;
2635                }
2636                break;
2637        case AH_ESP_V4_FLOW:
2638        case AH_V4_FLOW:
2639        case ESP_V4_FLOW:
2640        case SCTP_V4_FLOW:
2641        case AH_ESP_V6_FLOW:
2642        case AH_V6_FLOW:
2643        case ESP_V6_FLOW:
2644        case SCTP_V6_FLOW:
2645                if (!(nfc->data & RXH_IP_SRC) ||
2646                    !(nfc->data & RXH_IP_DST) ||
2647                    (nfc->data & RXH_L4_B_0_1) ||
2648                    (nfc->data & RXH_L4_B_2_3))
2649                        return -EINVAL;
2650                break;
2651        default:
2652                return -EINVAL;
2653        }
2654
2655        /* if we changed something we need to update flags */
2656        if (flags != adapter->flags) {
2657                struct e1000_hw *hw = &adapter->hw;
2658                u32 mrqc = rd32(E1000_MRQC);
2659
2660                if ((flags & UDP_RSS_FLAGS) &&
2661                    !(adapter->flags & UDP_RSS_FLAGS))
2662                        dev_err(&adapter->pdev->dev,
2663                                "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
2664
2665                adapter->flags = flags;
2666
2667                /* Perform hash on these packet types */
2668                mrqc |= E1000_MRQC_RSS_FIELD_IPV4 |
2669                        E1000_MRQC_RSS_FIELD_IPV4_TCP |
2670                        E1000_MRQC_RSS_FIELD_IPV6 |
2671                        E1000_MRQC_RSS_FIELD_IPV6_TCP;
2672
2673                mrqc &= ~(E1000_MRQC_RSS_FIELD_IPV4_UDP |
2674                          E1000_MRQC_RSS_FIELD_IPV6_UDP);
2675
2676                if (flags & IGB_FLAG_RSS_FIELD_IPV4_UDP)
2677                        mrqc |= E1000_MRQC_RSS_FIELD_IPV4_UDP;
2678
2679                if (flags & IGB_FLAG_RSS_FIELD_IPV6_UDP)
2680                        mrqc |= E1000_MRQC_RSS_FIELD_IPV6_UDP;
2681
2682                wr32(E1000_MRQC, mrqc);
2683        }
2684
2685        return 0;
2686}
2687
2688static int igb_rxnfc_write_etype_filter(struct igb_adapter *adapter,
2689                                        struct igb_nfc_filter *input)
2690{
2691        struct e1000_hw *hw = &adapter->hw;
2692        u8 i;
2693        u32 etqf;
2694        u16 etype;
2695
2696        /* find an empty etype filter register */
2697        for (i = 0; i < MAX_ETYPE_FILTER; ++i) {
2698                if (!adapter->etype_bitmap[i])
2699                        break;
2700        }
2701        if (i == MAX_ETYPE_FILTER) {
2702                dev_err(&adapter->pdev->dev, "ethtool -N: etype filters are all used.\n");
2703                return -EINVAL;
2704        }
2705
2706        adapter->etype_bitmap[i] = true;
2707
2708        etqf = rd32(E1000_ETQF(i));
2709        etype = ntohs(input->filter.etype & ETHER_TYPE_FULL_MASK);
2710
2711        etqf |= E1000_ETQF_FILTER_ENABLE;
2712        etqf &= ~E1000_ETQF_ETYPE_MASK;
2713        etqf |= (etype & E1000_ETQF_ETYPE_MASK);
2714
2715        etqf &= ~E1000_ETQF_QUEUE_MASK;
2716        etqf |= ((input->action << E1000_ETQF_QUEUE_SHIFT)
2717                & E1000_ETQF_QUEUE_MASK);
2718        etqf |= E1000_ETQF_QUEUE_ENABLE;
2719
2720        wr32(E1000_ETQF(i), etqf);
2721
2722        input->etype_reg_index = i;
2723
2724        return 0;
2725}
2726
2727static int igb_rxnfc_write_vlan_prio_filter(struct igb_adapter *adapter,
2728                                            struct igb_nfc_filter *input)
2729{
2730        struct e1000_hw *hw = &adapter->hw;
2731        u8 vlan_priority;
2732        u16 queue_index;
2733        u32 vlapqf;
2734
2735        vlapqf = rd32(E1000_VLAPQF);
2736        vlan_priority = (ntohs(input->filter.vlan_tci) & VLAN_PRIO_MASK)
2737                                >> VLAN_PRIO_SHIFT;
2738        queue_index = (vlapqf >> (vlan_priority * 4)) & E1000_VLAPQF_QUEUE_MASK;
2739
2740        /* check whether this vlan prio is already set */
2741        if ((vlapqf & E1000_VLAPQF_P_VALID(vlan_priority)) &&
2742            (queue_index != input->action)) {
2743                dev_err(&adapter->pdev->dev, "ethtool rxnfc set vlan prio filter failed.\n");
2744                return -EEXIST;
2745        }
2746
2747        vlapqf |= E1000_VLAPQF_P_VALID(vlan_priority);
2748        vlapqf |= E1000_VLAPQF_QUEUE_SEL(vlan_priority, input->action);
2749
2750        wr32(E1000_VLAPQF, vlapqf);
2751
2752        return 0;
2753}
2754
2755int igb_add_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
2756{
2757        struct e1000_hw *hw = &adapter->hw;
2758        int err = -EINVAL;
2759
2760        if (hw->mac.type == e1000_i210 &&
2761            !(input->filter.match_flags & ~IGB_FILTER_FLAG_SRC_MAC_ADDR)) {
2762                dev_err(&adapter->pdev->dev,
2763                        "i210 doesn't support flow classification rules specifying only source addresses.\n");
2764                return -EOPNOTSUPP;
2765        }
2766
2767        if (input->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE) {
2768                err = igb_rxnfc_write_etype_filter(adapter, input);
2769                if (err)
2770                        return err;
2771        }
2772
2773        if (input->filter.match_flags & IGB_FILTER_FLAG_DST_MAC_ADDR) {
2774                err = igb_add_mac_steering_filter(adapter,
2775                                                  input->filter.dst_addr,
2776                                                  input->action, 0);
2777                err = min_t(int, err, 0);
2778                if (err)
2779                        return err;
2780        }
2781
2782        if (input->filter.match_flags & IGB_FILTER_FLAG_SRC_MAC_ADDR) {
2783                err = igb_add_mac_steering_filter(adapter,
2784                                                  input->filter.src_addr,
2785                                                  input->action,
2786                                                  IGB_MAC_STATE_SRC_ADDR);
2787                err = min_t(int, err, 0);
2788                if (err)
2789                        return err;
2790        }
2791
2792        if (input->filter.match_flags & IGB_FILTER_FLAG_VLAN_TCI)
2793                err = igb_rxnfc_write_vlan_prio_filter(adapter, input);
2794
2795        return err;
2796}
2797
2798static void igb_clear_etype_filter_regs(struct igb_adapter *adapter,
2799                                        u16 reg_index)
2800{
2801        struct e1000_hw *hw = &adapter->hw;
2802        u32 etqf = rd32(E1000_ETQF(reg_index));
2803
2804        etqf &= ~E1000_ETQF_QUEUE_ENABLE;
2805        etqf &= ~E1000_ETQF_QUEUE_MASK;
2806        etqf &= ~E1000_ETQF_FILTER_ENABLE;
2807
2808        wr32(E1000_ETQF(reg_index), etqf);
2809
2810        adapter->etype_bitmap[reg_index] = false;
2811}
2812
2813static void igb_clear_vlan_prio_filter(struct igb_adapter *adapter,
2814                                       u16 vlan_tci)
2815{
2816        struct e1000_hw *hw = &adapter->hw;
2817        u8 vlan_priority;
2818        u32 vlapqf;
2819
2820        vlan_priority = (vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
2821
2822        vlapqf = rd32(E1000_VLAPQF);
2823        vlapqf &= ~E1000_VLAPQF_P_VALID(vlan_priority);
2824        vlapqf &= ~E1000_VLAPQF_QUEUE_SEL(vlan_priority,
2825                                                E1000_VLAPQF_QUEUE_MASK);
2826
2827        wr32(E1000_VLAPQF, vlapqf);
2828}
2829
2830int igb_erase_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
2831{
2832        if (input->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE)
2833                igb_clear_etype_filter_regs(adapter,
2834                                            input->etype_reg_index);
2835
2836        if (input->filter.match_flags & IGB_FILTER_FLAG_VLAN_TCI)
2837                igb_clear_vlan_prio_filter(adapter,
2838                                           ntohs(input->filter.vlan_tci));
2839
2840        if (input->filter.match_flags & IGB_FILTER_FLAG_SRC_MAC_ADDR)
2841                igb_del_mac_steering_filter(adapter, input->filter.src_addr,
2842                                            input->action,
2843                                            IGB_MAC_STATE_SRC_ADDR);
2844
2845        if (input->filter.match_flags & IGB_FILTER_FLAG_DST_MAC_ADDR)
2846                igb_del_mac_steering_filter(adapter, input->filter.dst_addr,
2847                                            input->action, 0);
2848
2849        return 0;
2850}
2851
2852static int igb_update_ethtool_nfc_entry(struct igb_adapter *adapter,
2853                                        struct igb_nfc_filter *input,
2854                                        u16 sw_idx)
2855{
2856        struct igb_nfc_filter *rule, *parent;
2857        int err = -EINVAL;
2858
2859        parent = NULL;
2860        rule = NULL;
2861
2862        hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
2863                /* hash found, or no matching entry */
2864                if (rule->sw_idx >= sw_idx)
2865                        break;
2866                parent = rule;
2867        }
2868
2869        /* if there is an old rule occupying our place remove it */
2870        if (rule && (rule->sw_idx == sw_idx)) {
2871                if (!input)
2872                        err = igb_erase_filter(adapter, rule);
2873
2874                hlist_del(&rule->nfc_node);
2875                kfree(rule);
2876                adapter->nfc_filter_count--;
2877        }
2878
2879        /* If no input this was a delete, err should be 0 if a rule was
2880         * successfully found and removed from the list else -EINVAL
2881         */
2882        if (!input)
2883                return err;
2884
2885        /* initialize node */
2886        INIT_HLIST_NODE(&input->nfc_node);
2887
2888        /* add filter to the list */
2889        if (parent)
2890                hlist_add_behind(&input->nfc_node, &parent->nfc_node);
2891        else
2892                hlist_add_head(&input->nfc_node, &adapter->nfc_filter_list);
2893
2894        /* update counts */
2895        adapter->nfc_filter_count++;
2896
2897        return 0;
2898}
2899
2900static int igb_add_ethtool_nfc_entry(struct igb_adapter *adapter,
2901                                     struct ethtool_rxnfc *cmd)
2902{
2903        struct net_device *netdev = adapter->netdev;
2904        struct ethtool_rx_flow_spec *fsp =
2905                (struct ethtool_rx_flow_spec *)&cmd->fs;
2906        struct igb_nfc_filter *input, *rule;
2907        int err = 0;
2908
2909        if (!(netdev->hw_features & NETIF_F_NTUPLE))
2910                return -EOPNOTSUPP;
2911
2912        /* Don't allow programming if the action is a queue greater than
2913         * the number of online Rx queues.
2914         */
2915        if ((fsp->ring_cookie == RX_CLS_FLOW_DISC) ||
2916            (fsp->ring_cookie >= adapter->num_rx_queues)) {
2917                dev_err(&adapter->pdev->dev, "ethtool -N: The specified action is invalid\n");
2918                return -EINVAL;
2919        }
2920
2921        /* Don't allow indexes to exist outside of available space */
2922        if (fsp->location >= IGB_MAX_RXNFC_FILTERS) {
2923                dev_err(&adapter->pdev->dev, "Location out of range\n");
2924                return -EINVAL;
2925        }
2926
2927        if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW)
2928                return -EINVAL;
2929
2930        input = kzalloc(sizeof(*input), GFP_KERNEL);
2931        if (!input)
2932                return -ENOMEM;
2933
2934        if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
2935                input->filter.etype = fsp->h_u.ether_spec.h_proto;
2936                input->filter.match_flags = IGB_FILTER_FLAG_ETHER_TYPE;
2937        }
2938
2939        /* Only support matching addresses by the full mask */
2940        if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
2941                input->filter.match_flags |= IGB_FILTER_FLAG_SRC_MAC_ADDR;
2942                ether_addr_copy(input->filter.src_addr,
2943                                fsp->h_u.ether_spec.h_source);
2944        }
2945
2946        /* Only support matching addresses by the full mask */
2947        if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
2948                input->filter.match_flags |= IGB_FILTER_FLAG_DST_MAC_ADDR;
2949                ether_addr_copy(input->filter.dst_addr,
2950                                fsp->h_u.ether_spec.h_dest);
2951        }
2952
2953        if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
2954                if (fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
2955                        err = -EINVAL;
2956                        goto err_out;
2957                }
2958                input->filter.vlan_tci = fsp->h_ext.vlan_tci;
2959                input->filter.match_flags |= IGB_FILTER_FLAG_VLAN_TCI;
2960        }
2961
2962        input->action = fsp->ring_cookie;
2963        input->sw_idx = fsp->location;
2964
2965        spin_lock(&adapter->nfc_lock);
2966
2967        hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
2968                if (!memcmp(&input->filter, &rule->filter,
2969                            sizeof(input->filter))) {
2970                        err = -EEXIST;
2971                        dev_err(&adapter->pdev->dev,
2972                                "ethtool: this filter is already set\n");
2973                        goto err_out_w_lock;
2974                }
2975        }
2976
2977        err = igb_add_filter(adapter, input);
2978        if (err)
2979                goto err_out_w_lock;
2980
2981        igb_update_ethtool_nfc_entry(adapter, input, input->sw_idx);
2982
2983        spin_unlock(&adapter->nfc_lock);
2984        return 0;
2985
2986err_out_w_lock:
2987        spin_unlock(&adapter->nfc_lock);
2988err_out:
2989        kfree(input);
2990        return err;
2991}
2992
2993static int igb_del_ethtool_nfc_entry(struct igb_adapter *adapter,
2994                                     struct ethtool_rxnfc *cmd)
2995{
2996        struct ethtool_rx_flow_spec *fsp =
2997                (struct ethtool_rx_flow_spec *)&cmd->fs;
2998        int err;
2999
3000        spin_lock(&adapter->nfc_lock);
3001        err = igb_update_ethtool_nfc_entry(adapter, NULL, fsp->location);
3002        spin_unlock(&adapter->nfc_lock);
3003
3004        return err;
3005}
3006
3007static int igb_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
3008{
3009        struct igb_adapter *adapter = netdev_priv(dev);
3010        int ret = -EOPNOTSUPP;
3011
3012        switch (cmd->cmd) {
3013        case ETHTOOL_SRXFH:
3014                ret = igb_set_rss_hash_opt(adapter, cmd);
3015                break;
3016        case ETHTOOL_SRXCLSRLINS:
3017                ret = igb_add_ethtool_nfc_entry(adapter, cmd);
3018                break;
3019        case ETHTOOL_SRXCLSRLDEL:
3020                ret = igb_del_ethtool_nfc_entry(adapter, cmd);
3021        default:
3022                break;
3023        }
3024
3025        return ret;
3026}
3027
3028static int igb_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
3029{
3030        struct igb_adapter *adapter = netdev_priv(netdev);
3031        struct e1000_hw *hw = &adapter->hw;
3032        u32 ret_val;
3033        u16 phy_data;
3034
3035        if ((hw->mac.type < e1000_i350) ||
3036            (hw->phy.media_type != e1000_media_type_copper))
3037                return -EOPNOTSUPP;
3038
3039        edata->supported = (SUPPORTED_1000baseT_Full |
3040                            SUPPORTED_100baseT_Full);
3041        if (!hw->dev_spec._82575.eee_disable)
3042                edata->advertised =
3043                        mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
3044
3045        /* The IPCNFG and EEER registers are not supported on I354. */
3046        if (hw->mac.type == e1000_i354) {
3047                igb_get_eee_status_i354(hw, (bool *)&edata->eee_active);
3048        } else {
3049                u32 eeer;
3050
3051                eeer = rd32(E1000_EEER);
3052
3053                /* EEE status on negotiated link */
3054                if (eeer & E1000_EEER_EEE_NEG)
3055                        edata->eee_active = true;
3056
3057                if (eeer & E1000_EEER_TX_LPI_EN)
3058                        edata->tx_lpi_enabled = true;
3059        }
3060
3061        /* EEE Link Partner Advertised */
3062        switch (hw->mac.type) {
3063        case e1000_i350:
3064                ret_val = igb_read_emi_reg(hw, E1000_EEE_LP_ADV_ADDR_I350,
3065                                           &phy_data);
3066                if (ret_val)
3067                        return -ENODATA;
3068
3069                edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
3070                break;
3071        case e1000_i354:
3072        case e1000_i210:
3073        case e1000_i211:
3074                ret_val = igb_read_xmdio_reg(hw, E1000_EEE_LP_ADV_ADDR_I210,
3075                                             E1000_EEE_LP_ADV_DEV_I210,
3076                                             &phy_data);
3077                if (ret_val)
3078                        return -ENODATA;
3079
3080                edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(phy_data);
3081
3082                break;
3083        default:
3084                break;
3085        }
3086
3087        edata->eee_enabled = !hw->dev_spec._82575.eee_disable;
3088
3089        if ((hw->mac.type == e1000_i354) &&
3090            (edata->eee_enabled))
3091                edata->tx_lpi_enabled = true;
3092
3093        /* Report correct negotiated EEE status for devices that
3094         * wrongly report EEE at half-duplex
3095         */
3096        if (adapter->link_duplex == HALF_DUPLEX) {
3097                edata->eee_enabled = false;
3098                edata->eee_active = false;
3099                edata->tx_lpi_enabled = false;
3100                edata->advertised &= ~edata->advertised;
3101        }
3102
3103        return 0;
3104}
3105
3106static int igb_set_eee(struct net_device *netdev,
3107                       struct ethtool_eee *edata)
3108{
3109        struct igb_adapter *adapter = netdev_priv(netdev);
3110        struct e1000_hw *hw = &adapter->hw;
3111        struct ethtool_eee eee_curr;
3112        bool adv1g_eee = true, adv100m_eee = true;
3113        s32 ret_val;
3114
3115        if ((hw->mac.type < e1000_i350) ||
3116            (hw->phy.media_type != e1000_media_type_copper))
3117                return -EOPNOTSUPP;
3118
3119        memset(&eee_curr, 0, sizeof(struct ethtool_eee));
3120
3121        ret_val = igb_get_eee(netdev, &eee_curr);
3122        if (ret_val)
3123                return ret_val;
3124
3125        if (eee_curr.eee_enabled) {
3126                if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
3127                        dev_err(&adapter->pdev->dev,
3128                                "Setting EEE tx-lpi is not supported\n");
3129                        return -EINVAL;
3130                }
3131
3132                /* Tx LPI timer is not implemented currently */
3133                if (edata->tx_lpi_timer) {
3134                        dev_err(&adapter->pdev->dev,
3135                                "Setting EEE Tx LPI timer is not supported\n");
3136                        return -EINVAL;
3137                }
3138
3139                if (!edata->advertised || (edata->advertised &
3140                    ~(ADVERTISE_100_FULL | ADVERTISE_1000_FULL))) {
3141                        dev_err(&adapter->pdev->dev,
3142                                "EEE Advertisement supports only 100Tx and/or 100T full duplex\n");
3143                        return -EINVAL;
3144                }
3145                adv100m_eee = !!(edata->advertised & ADVERTISE_100_FULL);
3146                adv1g_eee = !!(edata->advertised & ADVERTISE_1000_FULL);
3147
3148        } else if (!edata->eee_enabled) {
3149                dev_err(&adapter->pdev->dev,
3150                        "Setting EEE options are not supported with EEE disabled\n");
3151                return -EINVAL;
3152        }
3153
3154        adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
3155        if (hw->dev_spec._82575.eee_disable != !edata->eee_enabled) {
3156                hw->dev_spec._82575.eee_disable = !edata->eee_enabled;
3157                adapter->flags |= IGB_FLAG_EEE;
3158
3159                /* reset link */
3160                if (netif_running(netdev))
3161                        igb_reinit_locked(adapter);
3162                else
3163                        igb_reset(adapter);
3164        }
3165
3166        if (hw->mac.type == e1000_i354)
3167                ret_val = igb_set_eee_i354(hw, adv1g_eee, adv100m_eee);
3168        else
3169                ret_val = igb_set_eee_i350(hw, adv1g_eee, adv100m_eee);
3170
3171        if (ret_val) {
3172                dev_err(&adapter->pdev->dev,
3173                        "Problem setting EEE advertisement options\n");
3174                return -EINVAL;
3175        }
3176
3177        return 0;
3178}
3179
3180static int igb_get_module_info(struct net_device *netdev,
3181                               struct ethtool_modinfo *modinfo)
3182{
3183        struct igb_adapter *adapter = netdev_priv(netdev);
3184        struct e1000_hw *hw = &adapter->hw;
3185        u32 status = 0;
3186        u16 sff8472_rev, addr_mode;
3187        bool page_swap = false;
3188
3189        if ((hw->phy.media_type == e1000_media_type_copper) ||
3190            (hw->phy.media_type == e1000_media_type_unknown))
3191                return -EOPNOTSUPP;
3192
3193        /* Check whether we support SFF-8472 or not */
3194        status = igb_read_phy_reg_i2c(hw, IGB_SFF_8472_COMP, &sff8472_rev);
3195        if (status)
3196                return -EIO;
3197
3198        /* addressing mode is not supported */
3199        status = igb_read_phy_reg_i2c(hw, IGB_SFF_8472_SWAP, &addr_mode);
3200        if (status)
3201                return -EIO;
3202
3203        /* addressing mode is not supported */
3204        if ((addr_mode & 0xFF) & IGB_SFF_ADDRESSING_MODE) {
3205                hw_dbg("Address change required to access page 0xA2, but not supported. Please report the module type to the driver maintainers.\n");
3206                page_swap = true;
3207        }
3208
3209        if ((sff8472_rev & 0xFF) == IGB_SFF_8472_UNSUP || page_swap) {
3210                /* We have an SFP, but it does not support SFF-8472 */
3211                modinfo->type = ETH_MODULE_SFF_8079;
3212                modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3213        } else {
3214                /* We have an SFP which supports a revision of SFF-8472 */
3215                modinfo->type = ETH_MODULE_SFF_8472;
3216                modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
3217        }
3218
3219        return 0;
3220}
3221
3222static int igb_get_module_eeprom(struct net_device *netdev,
3223                                 struct ethtool_eeprom *ee, u8 *data)
3224{
3225        struct igb_adapter *adapter = netdev_priv(netdev);
3226        struct e1000_hw *hw = &adapter->hw;
3227        u32 status = 0;
3228        u16 *dataword;
3229        u16 first_word, last_word;
3230        int i = 0;
3231
3232        if (ee->len == 0)
3233                return -EINVAL;
3234
3235        first_word = ee->offset >> 1;
3236        last_word = (ee->offset + ee->len - 1) >> 1;
3237
3238        dataword = kmalloc_array(last_word - first_word + 1, sizeof(u16),
3239                                 GFP_KERNEL);
3240        if (!dataword)
3241                return -ENOMEM;
3242
3243        /* Read EEPROM block, SFF-8079/SFF-8472, word at a time */
3244        for (i = 0; i < last_word - first_word + 1; i++) {
3245                status = igb_read_phy_reg_i2c(hw, (first_word + i) * 2,
3246                                              &dataword[i]);
3247                if (status) {
3248                        /* Error occurred while reading module */
3249                        kfree(dataword);
3250                        return -EIO;
3251                }
3252
3253                be16_to_cpus(&dataword[i]);
3254        }
3255
3256        memcpy(data, (u8 *)dataword + (ee->offset & 1), ee->len);
3257        kfree(dataword);
3258
3259        return 0;
3260}
3261
3262static int igb_ethtool_begin(struct net_device *netdev)
3263{
3264        struct igb_adapter *adapter = netdev_priv(netdev);
3265        pm_runtime_get_sync(&adapter->pdev->dev);
3266        return 0;
3267}
3268
3269static void igb_ethtool_complete(struct net_device *netdev)
3270{
3271        struct igb_adapter *adapter = netdev_priv(netdev);
3272        pm_runtime_put(&adapter->pdev->dev);
3273}
3274
3275static u32 igb_get_rxfh_indir_size(struct net_device *netdev)
3276{
3277        return IGB_RETA_SIZE;
3278}
3279
3280static int igb_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
3281                        u8 *hfunc)
3282{
3283        struct igb_adapter *adapter = netdev_priv(netdev);
3284        int i;
3285
3286        if (hfunc)
3287                *hfunc = ETH_RSS_HASH_TOP;
3288        if (!indir)
3289                return 0;
3290        for (i = 0; i < IGB_RETA_SIZE; i++)
3291                indir[i] = adapter->rss_indir_tbl[i];
3292
3293        return 0;
3294}
3295
3296void igb_write_rss_indir_tbl(struct igb_adapter *adapter)
3297{
3298        struct e1000_hw *hw = &adapter->hw;
3299        u32 reg = E1000_RETA(0);
3300        u32 shift = 0;
3301        int i = 0;
3302
3303        switch (hw->mac.type) {
3304        case e1000_82575:
3305                shift = 6;
3306                break;
3307        case e1000_82576:
3308                /* 82576 supports 2 RSS queues for SR-IOV */
3309                if (adapter->vfs_allocated_count)
3310                        shift = 3;
3311                break;
3312        default:
3313                break;
3314        }
3315
3316        while (i < IGB_RETA_SIZE) {
3317                u32 val = 0;
3318                int j;
3319
3320                for (j = 3; j >= 0; j--) {
3321                        val <<= 8;
3322                        val |= adapter->rss_indir_tbl[i + j];
3323                }
3324
3325                wr32(reg, val << shift);
3326                reg += 4;
3327                i += 4;
3328        }
3329}
3330
3331static int igb_set_rxfh(struct net_device *netdev, const u32 *indir,
3332                        const u8 *key, const u8 hfunc)
3333{
3334        struct igb_adapter *adapter = netdev_priv(netdev);
3335        struct e1000_hw *hw = &adapter->hw;
3336        int i;
3337        u32 num_queues;
3338
3339        /* We do not allow change in unsupported parameters */
3340        if (key ||
3341            (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
3342                return -EOPNOTSUPP;
3343        if (!indir)
3344                return 0;
3345
3346        num_queues = adapter->rss_queues;
3347
3348        switch (hw->mac.type) {
3349        case e1000_82576:
3350                /* 82576 supports 2 RSS queues for SR-IOV */
3351                if (adapter->vfs_allocated_count)
3352                        num_queues = 2;
3353                break;
3354        default:
3355                break;
3356        }
3357
3358        /* Verify user input. */
3359        for (i = 0; i < IGB_RETA_SIZE; i++)
3360                if (indir[i] >= num_queues)
3361                        return -EINVAL;
3362
3363
3364        for (i = 0; i < IGB_RETA_SIZE; i++)
3365                adapter->rss_indir_tbl[i] = indir[i];
3366
3367        igb_write_rss_indir_tbl(adapter);
3368
3369        return 0;
3370}
3371
3372static unsigned int igb_max_channels(struct igb_adapter *adapter)
3373{
3374        return igb_get_max_rss_queues(adapter);
3375}
3376
3377static void igb_get_channels(struct net_device *netdev,
3378                             struct ethtool_channels *ch)
3379{
3380        struct igb_adapter *adapter = netdev_priv(netdev);
3381
3382        /* Report maximum channels */
3383        ch->max_combined = igb_max_channels(adapter);
3384
3385        /* Report info for other vector */
3386        if (adapter->flags & IGB_FLAG_HAS_MSIX) {
3387                ch->max_other = NON_Q_VECTORS;
3388                ch->other_count = NON_Q_VECTORS;
3389        }
3390
3391        ch->combined_count = adapter->rss_queues;
3392}
3393
3394static int igb_set_channels(struct net_device *netdev,
3395                            struct ethtool_channels *ch)
3396{
3397        struct igb_adapter *adapter = netdev_priv(netdev);
3398        unsigned int count = ch->combined_count;
3399        unsigned int max_combined = 0;
3400
3401        /* Verify they are not requesting separate vectors */
3402        if (!count || ch->rx_count || ch->tx_count)
3403                return -EINVAL;
3404
3405        /* Verify other_count is valid and has not been changed */
3406        if (ch->other_count != NON_Q_VECTORS)
3407                return -EINVAL;
3408
3409        /* Verify the number of channels doesn't exceed hw limits */
3410        max_combined = igb_max_channels(adapter);
3411        if (count > max_combined)
3412                return -EINVAL;
3413
3414        if (count != adapter->rss_queues) {
3415                adapter->rss_queues = count;
3416                igb_set_flag_queue_pairs(adapter, max_combined);
3417
3418                /* Hardware has to reinitialize queues and interrupts to
3419                 * match the new configuration.
3420                 */
3421                return igb_reinit_queues(adapter);
3422        }
3423
3424        return 0;
3425}
3426
3427static u32 igb_get_priv_flags(struct net_device *netdev)
3428{
3429        struct igb_adapter *adapter = netdev_priv(netdev);
3430        u32 priv_flags = 0;
3431
3432        if (adapter->flags & IGB_FLAG_RX_LEGACY)
3433                priv_flags |= IGB_PRIV_FLAGS_LEGACY_RX;
3434
3435        return priv_flags;
3436}
3437
3438static int igb_set_priv_flags(struct net_device *netdev, u32 priv_flags)
3439{
3440        struct igb_adapter *adapter = netdev_priv(netdev);
3441        unsigned int flags = adapter->flags;
3442
3443        flags &= ~IGB_FLAG_RX_LEGACY;
3444        if (priv_flags & IGB_PRIV_FLAGS_LEGACY_RX)
3445                flags |= IGB_FLAG_RX_LEGACY;
3446
3447        if (flags != adapter->flags) {
3448                adapter->flags = flags;
3449
3450                /* reset interface to repopulate queues */
3451                if (netif_running(netdev))
3452                        igb_reinit_locked(adapter);
3453        }
3454
3455        return 0;
3456}
3457
3458static const struct ethtool_ops igb_ethtool_ops = {
3459        .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
3460        .get_drvinfo            = igb_get_drvinfo,
3461        .get_regs_len           = igb_get_regs_len,
3462        .get_regs               = igb_get_regs,
3463        .get_wol                = igb_get_wol,
3464        .set_wol                = igb_set_wol,
3465        .get_msglevel           = igb_get_msglevel,
3466        .set_msglevel           = igb_set_msglevel,
3467        .nway_reset             = igb_nway_reset,
3468        .get_link               = igb_get_link,
3469        .get_eeprom_len         = igb_get_eeprom_len,
3470        .get_eeprom             = igb_get_eeprom,
3471        .set_eeprom             = igb_set_eeprom,
3472        .get_ringparam          = igb_get_ringparam,
3473        .set_ringparam          = igb_set_ringparam,
3474        .get_pauseparam         = igb_get_pauseparam,
3475        .set_pauseparam         = igb_set_pauseparam,
3476        .self_test              = igb_diag_test,
3477        .get_strings            = igb_get_strings,
3478        .set_phys_id            = igb_set_phys_id,
3479        .get_sset_count         = igb_get_sset_count,
3480        .get_ethtool_stats      = igb_get_ethtool_stats,
3481        .get_coalesce           = igb_get_coalesce,
3482        .set_coalesce           = igb_set_coalesce,
3483        .get_ts_info            = igb_get_ts_info,
3484        .get_rxnfc              = igb_get_rxnfc,
3485        .set_rxnfc              = igb_set_rxnfc,
3486        .get_eee                = igb_get_eee,
3487        .set_eee                = igb_set_eee,
3488        .get_module_info        = igb_get_module_info,
3489        .get_module_eeprom      = igb_get_module_eeprom,
3490        .get_rxfh_indir_size    = igb_get_rxfh_indir_size,
3491        .get_rxfh               = igb_get_rxfh,
3492        .set_rxfh               = igb_set_rxfh,
3493        .get_channels           = igb_get_channels,
3494        .set_channels           = igb_set_channels,
3495        .get_priv_flags         = igb_get_priv_flags,
3496        .set_priv_flags         = igb_set_priv_flags,
3497        .begin                  = igb_ethtool_begin,
3498        .complete               = igb_ethtool_complete,
3499        .get_link_ksettings     = igb_get_link_ksettings,
3500        .set_link_ksettings     = igb_set_link_ksettings,
3501};
3502
3503void igb_set_ethtool_ops(struct net_device *netdev)
3504{
3505        netdev->ethtool_ops = &igb_ethtool_ops;
3506}
3507