drivers/net/ixgbe/ixgbe_ethtool.c

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2010 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25
  26 *******************************************************************************/
  27
  28 /* ethtool support for ixgbe */
  29
  30 #include <linux/types.h>
  31 #include <linux/module.h>
  32 #include <linux/slab.h>
  33 #include <linux/pci.h>
  34 #include <linux/netdevice.h>
  35 #include <linux/ethtool.h>
  36 #include <linux/vmalloc.h>
  37 #include <linux/uaccess.h>
  38
  39 #include "ixgbe.h"
  40
  41
  42 #define IXGBE_ALL_RAR_ENTRIES 16
  43
  44 enum {NETDEV_STATS, IXGBE_STATS};
  45
  46 struct ixgbe_stats {
  47         char stat_string[ETH_GSTRING_LEN];
  48         int type;
  49         int sizeof_stat;
  50         int stat_offset;
  51 };
  52
  53 #define IXGBE_STAT(m)           IXGBE_STATS, \
  54                                 sizeof(((struct ixgbe_adapter *)0)->m), \
  55                                 offsetof(struct ixgbe_adapter, m)
  56 #define IXGBE_NETDEV_STAT(m)    NETDEV_STATS, \
  57                                 sizeof(((struct rtnl_link_stats64 *)0)->m), \
  58                                 offsetof(struct rtnl_link_stats64, m)
  59
  60 static struct ixgbe_stats ixgbe_gstrings_stats[] = {
  61         {"rx_packets", IXGBE_NETDEV_STAT(rx_packets)},
  62         {"tx_packets", IXGBE_NETDEV_STAT(tx_packets)},
  63         {"rx_bytes", IXGBE_NETDEV_STAT(rx_bytes)},
  64         {"tx_bytes", IXGBE_NETDEV_STAT(tx_bytes)},
  65         {"rx_pkts_nic", IXGBE_STAT(stats.gprc)},
  66         {"tx_pkts_nic", IXGBE_STAT(stats.gptc)},
  67         {"rx_bytes_nic", IXGBE_STAT(stats.gorc)},
  68         {"tx_bytes_nic", IXGBE_STAT(stats.gotc)},
  69         {"lsc_int", IXGBE_STAT(lsc_int)},
  70         {"tx_busy", IXGBE_STAT(tx_busy)},
  71         {"non_eop_descs", IXGBE_STAT(non_eop_descs)},
  72         {"rx_errors", IXGBE_NETDEV_STAT(rx_errors)},
  73         {"tx_errors", IXGBE_NETDEV_STAT(tx_errors)},
  74         {"rx_dropped", IXGBE_NETDEV_STAT(rx_dropped)},
  75         {"tx_dropped", IXGBE_NETDEV_STAT(tx_dropped)},
  76         {"multicast", IXGBE_NETDEV_STAT(multicast)},
  77         {"broadcast", IXGBE_STAT(stats.bprc)},
  78         {"rx_no_buffer_count", IXGBE_STAT(stats.rnbc[0]) },
  79         {"collisions", IXGBE_NETDEV_STAT(collisions)},
  80         {"rx_over_errors", IXGBE_NETDEV_STAT(rx_over_errors)},
  81         {"rx_crc_errors", IXGBE_NETDEV_STAT(rx_crc_errors)},
  82         {"rx_frame_errors", IXGBE_NETDEV_STAT(rx_frame_errors)},
  83         {"hw_rsc_aggregated", IXGBE_STAT(rsc_total_count)},
  84         {"hw_rsc_flushed", IXGBE_STAT(rsc_total_flush)},
  85         {"fdir_match", IXGBE_STAT(stats.fdirmatch)},
  86         {"fdir_miss", IXGBE_STAT(stats.fdirmiss)},
  87         {"rx_fifo_errors", IXGBE_NETDEV_STAT(rx_fifo_errors)},
  88         {"rx_missed_errors", IXGBE_NETDEV_STAT(rx_missed_errors)},
  89         {"tx_aborted_errors", IXGBE_NETDEV_STAT(tx_aborted_errors)},
  90         {"tx_carrier_errors", IXGBE_NETDEV_STAT(tx_carrier_errors)},
  91         {"tx_fifo_errors", IXGBE_NETDEV_STAT(tx_fifo_errors)},
  92         {"tx_heartbeat_errors", IXGBE_NETDEV_STAT(tx_heartbeat_errors)},
  93         {"tx_timeout_count", IXGBE_STAT(tx_timeout_count)},
  94         {"tx_restart_queue", IXGBE_STAT(restart_queue)},
  95         {"rx_long_length_errors", IXGBE_STAT(stats.roc)},
  96         {"rx_short_length_errors", IXGBE_STAT(stats.ruc)},
  97         {"tx_flow_control_xon", IXGBE_STAT(stats.lxontxc)},
  98         {"rx_flow_control_xon", IXGBE_STAT(stats.lxonrxc)},
  99         {"tx_flow_control_xoff", IXGBE_STAT(stats.lxofftxc)},
 100         {"rx_flow_control_xoff", IXGBE_STAT(stats.lxoffrxc)},
 101         {"rx_csum_offload_errors", IXGBE_STAT(hw_csum_rx_error)},
 102         {"alloc_rx_page_failed", IXGBE_STAT(alloc_rx_page_failed)},
 103         {"alloc_rx_buff_failed", IXGBE_STAT(alloc_rx_buff_failed)},
 104         {"rx_no_dma_resources", IXGBE_STAT(hw_rx_no_dma_resources)},
 105 #ifdef IXGBE_FCOE
 106         {"fcoe_bad_fccrc", IXGBE_STAT(stats.fccrc)},
 107         {"rx_fcoe_dropped", IXGBE_STAT(stats.fcoerpdc)},
 108         {"rx_fcoe_packets", IXGBE_STAT(stats.fcoeprc)},
 109         {"rx_fcoe_dwords", IXGBE_STAT(stats.fcoedwrc)},
 110         {"tx_fcoe_packets", IXGBE_STAT(stats.fcoeptc)},
 111         {"tx_fcoe_dwords", IXGBE_STAT(stats.fcoedwtc)},
 112 #endif /* IXGBE_FCOE */
 113 };
 114
 115 #define IXGBE_QUEUE_STATS_LEN \
 116         ((((struct ixgbe_adapter *)netdev_priv(netdev))->num_tx_queues + \
 117         ((struct ixgbe_adapter *)netdev_priv(netdev))->num_rx_queues) * \
 118         (sizeof(struct ixgbe_queue_stats) / sizeof(u64)))
 119 #define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
 120 #define IXGBE_PB_STATS_LEN ( \
 121                  (((struct ixgbe_adapter *)netdev_priv(netdev))->flags & \
 122                  IXGBE_FLAG_DCB_ENABLED) ? \
 123                  (sizeof(((struct ixgbe_adapter *)0)->stats.pxonrxc) + \
 124                   sizeof(((struct ixgbe_adapter *)0)->stats.pxontxc) + \
 125                   sizeof(((struct ixgbe_adapter *)0)->stats.pxoffrxc) + \
 126                   sizeof(((struct ixgbe_adapter *)0)->stats.pxofftxc)) \
 127                   / sizeof(u64) : 0)
 128 #define IXGBE_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + \
 129                          IXGBE_PB_STATS_LEN + \
 130                          IXGBE_QUEUE_STATS_LEN)
 131
 132 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
 133         "Register test  (offline)", "Eeprom test    (offline)",
 134         "Interrupt test (offline)", "Loopback test  (offline)",
 135         "Link test   (on/offline)"
 136 };
 137 #define IXGBE_TEST_LEN sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN
 138
 139 static int ixgbe_get_settings(struct net_device *netdev,
 140                               struct ethtool_cmd *ecmd)
 141 {
 142         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 143         struct ixgbe_hw *hw = &adapter->hw;
 144         u32 link_speed = 0;
 145         bool link_up;
 146
 147         ecmd->supported = SUPPORTED_10000baseT_Full;
 148         ecmd->autoneg = AUTONEG_ENABLE;
 149         ecmd->transceiver = XCVR_EXTERNAL;
 150         if ((hw->phy.media_type == ixgbe_media_type_copper) ||
 151             (hw->phy.multispeed_fiber)) {
 152                 ecmd->supported |= (SUPPORTED_1000baseT_Full |
 153                                     SUPPORTED_Autoneg);
 154
 155                 ecmd->advertising = ADVERTISED_Autoneg;
 156                 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10GB_FULL)
 157                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 158                 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_1GB_FULL)
 159                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 160                 /*
 161                  * It's possible that phy.autoneg_advertised may not be
 162                  * set yet.  If so display what the default would be -
 163                  * both 1G and 10G supported.
 164                  */
 165                 if (!(ecmd->advertising & (ADVERTISED_1000baseT_Full |
 166                                            ADVERTISED_10000baseT_Full)))
 167                         ecmd->advertising |= (ADVERTISED_10000baseT_Full |
 168                                               ADVERTISED_1000baseT_Full);
 169
 170                 if (hw->phy.media_type == ixgbe_media_type_copper) {
 171                         ecmd->supported |= SUPPORTED_TP;
 172                         ecmd->advertising |= ADVERTISED_TP;
 173                         ecmd->port = PORT_TP;
 174                 } else {
 175                         ecmd->supported |= SUPPORTED_FIBRE;
 176                         ecmd->advertising |= ADVERTISED_FIBRE;
 177                         ecmd->port = PORT_FIBRE;
 178                 }
 179         } else if (hw->phy.media_type == ixgbe_media_type_backplane) {
 180                 /* Set as FIBRE until SERDES defined in kernel */
 181                 if (hw->device_id == IXGBE_DEV_ID_82598_BX) {
 182                         ecmd->supported = (SUPPORTED_1000baseT_Full |
 183                                            SUPPORTED_FIBRE);
 184                         ecmd->advertising = (ADVERTISED_1000baseT_Full |
 185                                              ADVERTISED_FIBRE);
 186                         ecmd->port = PORT_FIBRE;
 187                         ecmd->autoneg = AUTONEG_DISABLE;
 188                 } else if ((hw->device_id == IXGBE_DEV_ID_82599_COMBO_BACKPLANE) ||
 189                            (hw->device_id == IXGBE_DEV_ID_82599_KX4_MEZZ)) {
 190                         ecmd->supported |= (SUPPORTED_1000baseT_Full |
 191                                             SUPPORTED_Autoneg |
 192                                             SUPPORTED_FIBRE);
 193                         ecmd->advertising = (ADVERTISED_10000baseT_Full |
 194                                              ADVERTISED_1000baseT_Full |
 195                                              ADVERTISED_Autoneg |
 196                                              ADVERTISED_FIBRE);
 197                         ecmd->port = PORT_FIBRE;
 198                 } else {
 199                         ecmd->supported |= (SUPPORTED_1000baseT_Full |
 200                                             SUPPORTED_FIBRE);
 201                         ecmd->advertising = (ADVERTISED_10000baseT_Full |
 202                                              ADVERTISED_1000baseT_Full |
 203                                              ADVERTISED_FIBRE);
 204                         ecmd->port = PORT_FIBRE;
 205                 }
 206         } else {
 207                 ecmd->supported |= SUPPORTED_FIBRE;
 208                 ecmd->advertising = (ADVERTISED_10000baseT_Full |
 209                                      ADVERTISED_FIBRE);
 210                 ecmd->port = PORT_FIBRE;
 211                 ecmd->autoneg = AUTONEG_DISABLE;
 212         }
 213
 214         /* Get PHY type */
 215         switch (adapter->hw.phy.type) {
 216         case ixgbe_phy_tn:
 217         case ixgbe_phy_aq:
 218         case ixgbe_phy_cu_unknown:
 219                 /* Copper 10G-BASET */
 220                 ecmd->port = PORT_TP;
 221                 break;
 222         case ixgbe_phy_qt:
 223                 ecmd->port = PORT_FIBRE;
 224                 break;
 225         case ixgbe_phy_nl:
 226         case ixgbe_phy_sfp_passive_tyco:
 227         case ixgbe_phy_sfp_passive_unknown:
 228         case ixgbe_phy_sfp_ftl:
 229         case ixgbe_phy_sfp_avago:
 230         case ixgbe_phy_sfp_intel:
 231         case ixgbe_phy_sfp_unknown:
 232                 switch (adapter->hw.phy.sfp_type) {
 233                 /* SFP+ devices, further checking needed */
 234                 case ixgbe_sfp_type_da_cu:
 235                 case ixgbe_sfp_type_da_cu_core0:
 236                 case ixgbe_sfp_type_da_cu_core1:
 237                         ecmd->port = PORT_DA;
 238                         break;
 239                 case ixgbe_sfp_type_sr:
 240                 case ixgbe_sfp_type_lr:
 241                 case ixgbe_sfp_type_srlr_core0:
 242                 case ixgbe_sfp_type_srlr_core1:
 243                         ecmd->port = PORT_FIBRE;
 244                         break;
 245                 case ixgbe_sfp_type_not_present:
 246                         ecmd->port = PORT_NONE;
 247                         break;
 248                 case ixgbe_sfp_type_1g_cu_core0:
 249                 case ixgbe_sfp_type_1g_cu_core1:
 250                         ecmd->port = PORT_TP;
 251                         ecmd->supported = SUPPORTED_TP;
 252                         ecmd->advertising = (ADVERTISED_1000baseT_Full |
 253                                              ADVERTISED_TP);
 254                         break;
 255                 case ixgbe_sfp_type_unknown:
 256                 default:
 257                         ecmd->port = PORT_OTHER;
 258                         break;
 259                 }
 260                 break;
 261         case ixgbe_phy_xaui:
 262                 ecmd->port = PORT_NONE;
 263                 break;
 264         case ixgbe_phy_unknown:
 265         case ixgbe_phy_generic:
 266         case ixgbe_phy_sfp_unsupported:
 267         default:
 268                 ecmd->port = PORT_OTHER;
 269                 break;
 270         }
 271
 272         hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
 273         if (link_up) {
 274                 ecmd->speed = (link_speed == IXGBE_LINK_SPEED_10GB_FULL) ?
 275                                SPEED_10000 : SPEED_1000;
 276                 ecmd->duplex = DUPLEX_FULL;
 277         } else {
 278                 ecmd->speed = -1;
 279                 ecmd->duplex = -1;
 280         }
 281
 282         return 0;
 283 }
 284
 285 static int ixgbe_set_settings(struct net_device *netdev,
 286                               struct ethtool_cmd *ecmd)
 287 {
 288         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 289         struct ixgbe_hw *hw = &adapter->hw;
 290         u32 advertised, old;
 291         s32 err = 0;
 292
 293         if ((hw->phy.media_type == ixgbe_media_type_copper) ||
 294             (hw->phy.multispeed_fiber)) {
 295                 /* 10000/copper and 1000/copper must autoneg
 296                  * this function does not support any duplex forcing, but can
 297                  * limit the advertising of the adapter to only 10000 or 1000 */
 298                 if (ecmd->autoneg == AUTONEG_DISABLE)
 299                         return -EINVAL;
 300
 301                 old = hw->phy.autoneg_advertised;
 302                 advertised = 0;
 303                 if (ecmd->advertising & ADVERTISED_10000baseT_Full)
 304                         advertised |= IXGBE_LINK_SPEED_10GB_FULL;
 305
 306                 if (ecmd->advertising & ADVERTISED_1000baseT_Full)
 307                         advertised |= IXGBE_LINK_SPEED_1GB_FULL;
 308
 309                 if (old == advertised)
 310                         return err;
 311                 /* this sets the link speed and restarts auto-neg */
 312                 hw->mac.autotry_restart = true;
 313                 err = hw->mac.ops.setup_link(hw, advertised, true, true);
 314                 if (err) {
 315                         e_info(probe, "setup link failed with code %d\n", err);
 316                         hw->mac.ops.setup_link(hw, old, true, true);
 317                 }
 318         } else {
 319                 /* in this case we currently only support 10Gb/FULL */
 320                 if ((ecmd->autoneg == AUTONEG_ENABLE) ||
 321                     (ecmd->advertising != ADVERTISED_10000baseT_Full) ||
 322                     (ecmd->speed + ecmd->duplex != SPEED_10000 + DUPLEX_FULL))
 323                         return -EINVAL;
 324         }
 325
 326         return err;
 327 }
 328
 329 static void ixgbe_get_pauseparam(struct net_device *netdev,
 330                                  struct ethtool_pauseparam *pause)
 331 {
 332         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 333         struct ixgbe_hw *hw = &adapter->hw;
 334
 335         /*
 336          * Flow Control Autoneg isn't on if
 337          *  - we didn't ask for it OR
 338          *  - it failed, we know this by tx & rx being off
 339          */
 340         if (hw->fc.disable_fc_autoneg ||
 341             (hw->fc.current_mode == ixgbe_fc_none))
 342                 pause->autoneg = 0;
 343         else
 344                 pause->autoneg = 1;
 345
 346         if (hw->fc.current_mode == ixgbe_fc_rx_pause) {
 347                 pause->rx_pause = 1;
 348         } else if (hw->fc.current_mode == ixgbe_fc_tx_pause) {
 349                 pause->tx_pause = 1;
 350         } else if (hw->fc.current_mode == ixgbe_fc_full) {
 351                 pause->rx_pause = 1;
 352                 pause->tx_pause = 1;
 353 #ifdef CONFIG_DCB
 354         } else if (hw->fc.current_mode == ixgbe_fc_pfc) {
 355                 pause->rx_pause = 0;
 356                 pause->tx_pause = 0;
 357 #endif
 358         }
 359 }
 360
 361 static int ixgbe_set_pauseparam(struct net_device *netdev,
 362                                 struct ethtool_pauseparam *pause)
 363 {
 364         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 365         struct ixgbe_hw *hw = &adapter->hw;
 366         struct ixgbe_fc_info fc;
 367
 368 #ifdef CONFIG_DCB
 369         if (adapter->dcb_cfg.pfc_mode_enable ||
 370                 ((hw->mac.type == ixgbe_mac_82598EB) &&
 371                 (adapter->flags & IXGBE_FLAG_DCB_ENABLED)))
 372                 return -EINVAL;
 373
 374 #endif
 375         fc = hw->fc;
 376
 377         if (pause->autoneg != AUTONEG_ENABLE)
 378                 fc.disable_fc_autoneg = true;
 379         else
 380                 fc.disable_fc_autoneg = false;
 381
 382         if ((pause->rx_pause && pause->tx_pause) || pause->autoneg)
 383                 fc.requested_mode = ixgbe_fc_full;
 384         else if (pause->rx_pause && !pause->tx_pause)
 385                 fc.requested_mode = ixgbe_fc_rx_pause;
 386         else if (!pause->rx_pause && pause->tx_pause)
 387                 fc.requested_mode = ixgbe_fc_tx_pause;
 388         else if (!pause->rx_pause && !pause->tx_pause)
 389                 fc.requested_mode = ixgbe_fc_none;
 390         else
 391                 return -EINVAL;
 392
 393 #ifdef CONFIG_DCB
 394         adapter->last_lfc_mode = fc.requested_mode;
 395 #endif
 396
 397         /* if the thing changed then we'll update and use new autoneg */
 398         if (memcmp(&fc, &hw->fc, sizeof(struct ixgbe_fc_info))) {
 399                 hw->fc = fc;
 400                 if (netif_running(netdev))
 401                         ixgbe_reinit_locked(adapter);
 402                 else
 403                         ixgbe_reset(adapter);
 404         }
 405
 406         return 0;
 407 }
 408
 409 static u32 ixgbe_get_rx_csum(struct net_device *netdev)
 410 {
 411         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 412         return adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED;
 413 }
 414
 415 static int ixgbe_set_rx_csum(struct net_device *netdev, u32 data)
 416 {
 417         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 418         if (data)
 419                 adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED;
 420         else
 421                 adapter->flags &= ~IXGBE_FLAG_RX_CSUM_ENABLED;
 422
 423         return 0;
 424 }
 425
 426 static u32 ixgbe_get_tx_csum(struct net_device *netdev)
 427 {
 428         return (netdev->features & NETIF_F_IP_CSUM) != 0;
 429 }
 430
 431 static int ixgbe_set_tx_csum(struct net_device *netdev, u32 data)
 432 {
 433         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 434         u32 feature_list;
 435
 436         feature_list = (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
 437         switch (adapter->hw.mac.type) {
 438         case ixgbe_mac_82599EB:
 439         case ixgbe_mac_X540:
 440                 feature_list |= NETIF_F_SCTP_CSUM;
 441                 break;
 442         default:
 443                 break;
 444         }
 445         if (data)
 446                 netdev->features |= feature_list;
 447         else
 448                 netdev->features &= ~feature_list;
 449
 450         return 0;
 451 }
 452
 453 static int ixgbe_set_tso(struct net_device *netdev, u32 data)
 454 {
 455         if (data) {
 456                 netdev->features |= NETIF_F_TSO;
 457                 netdev->features |= NETIF_F_TSO6;
 458         } else {
 459                 netdev->features &= ~NETIF_F_TSO;
 460                 netdev->features &= ~NETIF_F_TSO6;
 461         }
 462         return 0;
 463 }
 464
 465 static u32 ixgbe_get_msglevel(struct net_device *netdev)
 466 {
 467         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 468         return adapter->msg_enable;
 469 }
 470
 471 static void ixgbe_set_msglevel(struct net_device *netdev, u32 data)
 472 {
 473         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 474         adapter->msg_enable = data;
 475 }
 476
 477 static int ixgbe_get_regs_len(struct net_device *netdev)
 478 {
 479 #define IXGBE_REGS_LEN  1128
 480         return IXGBE_REGS_LEN * sizeof(u32);
 481 }
 482
 483 #define IXGBE_GET_STAT(_A_, _R_) _A_->stats._R_
 484
 485 static void ixgbe_get_regs(struct net_device *netdev,
 486                            struct ethtool_regs *regs, void *p)
 487 {
 488         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 489         struct ixgbe_hw *hw = &adapter->hw;
 490         u32 *regs_buff = p;
 491         u8 i;
 492
 493         memset(p, 0, IXGBE_REGS_LEN * sizeof(u32));
 494
 495         regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
 496
 497         /* General Registers */
 498         regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_CTRL);
 499         regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_STATUS);
 500         regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
 501         regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_ESDP);
 502         regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_EODSDP);
 503         regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
 504         regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_FRTIMER);
 505         regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_TCPTIMER);
 506
 507         /* NVM Register */
 508         regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_EEC);
 509         regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_EERD);
 510         regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_FLA);
 511         regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_EEMNGCTL);
 512         regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_EEMNGDATA);
 513         regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_FLMNGCTL);
 514         regs_buff[14] = IXGBE_READ_REG(hw, IXGBE_FLMNGDATA);
 515         regs_buff[15] = IXGBE_READ_REG(hw, IXGBE_FLMNGCNT);
 516         regs_buff[16] = IXGBE_READ_REG(hw, IXGBE_FLOP);
 517         regs_buff[17] = IXGBE_READ_REG(hw, IXGBE_GRC);
 518
 519         /* Interrupt */
 520         /* don't read EICR because it can clear interrupt causes, instead
 521          * read EICS which is a shadow but doesn't clear EICR */
 522         regs_buff[18] = IXGBE_READ_REG(hw, IXGBE_EICS);
 523         regs_buff[19] = IXGBE_READ_REG(hw, IXGBE_EICS);
 524         regs_buff[20] = IXGBE_READ_REG(hw, IXGBE_EIMS);
 525         regs_buff[21] = IXGBE_READ_REG(hw, IXGBE_EIMC);
 526         regs_buff[22] = IXGBE_READ_REG(hw, IXGBE_EIAC);
 527         regs_buff[23] = IXGBE_READ_REG(hw, IXGBE_EIAM);
 528         regs_buff[24] = IXGBE_READ_REG(hw, IXGBE_EITR(0));
 529         regs_buff[25] = IXGBE_READ_REG(hw, IXGBE_IVAR(0));
 530         regs_buff[26] = IXGBE_READ_REG(hw, IXGBE_MSIXT);
 531         regs_buff[27] = IXGBE_READ_REG(hw, IXGBE_MSIXPBA);
 532         regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_PBACL(0));
 533         regs_buff[29] = IXGBE_READ_REG(hw, IXGBE_GPIE);
 534
 535         /* Flow Control */
 536         regs_buff[30] = IXGBE_READ_REG(hw, IXGBE_PFCTOP);
 537         regs_buff[31] = IXGBE_READ_REG(hw, IXGBE_FCTTV(0));
 538         regs_buff[32] = IXGBE_READ_REG(hw, IXGBE_FCTTV(1));
 539         regs_buff[33] = IXGBE_READ_REG(hw, IXGBE_FCTTV(2));
 540         regs_buff[34] = IXGBE_READ_REG(hw, IXGBE_FCTTV(3));
 541         for (i = 0; i < 8; i++) {
 542                 switch (hw->mac.type) {
 543                 case ixgbe_mac_82598EB:
 544                         regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL(i));
 545                         regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH(i));
 546                         break;
 547                 case ixgbe_mac_82599EB:
 548                         regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL_82599(i));
 549                         regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH_82599(i));
 550                         break;
 551                 default:
 552                         break;
 553                 }
 554         }
 555         regs_buff[51] = IXGBE_READ_REG(hw, IXGBE_FCRTV);
 556         regs_buff[52] = IXGBE_READ_REG(hw, IXGBE_TFCS);
 557
 558         /* Receive DMA */
 559         for (i = 0; i < 64; i++)
 560                 regs_buff[53 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i));
 561         for (i = 0; i < 64; i++)
 562                 regs_buff[117 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i));
 563         for (i = 0; i < 64; i++)
 564                 regs_buff[181 + i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i));
 565         for (i = 0; i < 64; i++)
 566                 regs_buff[245 + i] = IXGBE_READ_REG(hw, IXGBE_RDH(i));
 567         for (i = 0; i < 64; i++)
 568                 regs_buff[309 + i] = IXGBE_READ_REG(hw, IXGBE_RDT(i));
 569         for (i = 0; i < 64; i++)
 570                 regs_buff[373 + i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
 571         for (i = 0; i < 16; i++)
 572                 regs_buff[437 + i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
 573         for (i = 0; i < 16; i++)
 574                 regs_buff[453 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
 575         regs_buff[469] = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
 576         for (i = 0; i < 8; i++)
 577                 regs_buff[470 + i] = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
 578         regs_buff[478] = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
 579         regs_buff[479] = IXGBE_READ_REG(hw, IXGBE_DROPEN);
 580
 581         /* Receive */
 582         regs_buff[480] = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
 583         regs_buff[481] = IXGBE_READ_REG(hw, IXGBE_RFCTL);
 584         for (i = 0; i < 16; i++)
 585                 regs_buff[482 + i] = IXGBE_READ_REG(hw, IXGBE_RAL(i));
 586         for (i = 0; i < 16; i++)
 587                 regs_buff[498 + i] = IXGBE_READ_REG(hw, IXGBE_RAH(i));
 588         regs_buff[514] = IXGBE_READ_REG(hw, IXGBE_PSRTYPE(0));
 589         regs_buff[515] = IXGBE_READ_REG(hw, IXGBE_FCTRL);
 590         regs_buff[516] = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
 591         regs_buff[517] = IXGBE_READ_REG(hw, IXGBE_MCSTCTRL);
 592         regs_buff[518] = IXGBE_READ_REG(hw, IXGBE_MRQC);
 593         regs_buff[519] = IXGBE_READ_REG(hw, IXGBE_VMD_CTL);
 594         for (i = 0; i < 8; i++)
 595                 regs_buff[520 + i] = IXGBE_READ_REG(hw, IXGBE_IMIR(i));
 596         for (i = 0; i < 8; i++)
 597                 regs_buff[528 + i] = IXGBE_READ_REG(hw, IXGBE_IMIREXT(i));
 598         regs_buff[536] = IXGBE_READ_REG(hw, IXGBE_IMIRVP);
 599
 600         /* Transmit */
 601         for (i = 0; i < 32; i++)
 602                 regs_buff[537 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i));
 603         for (i = 0; i < 32; i++)
 604                 regs_buff[569 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i));
 605         for (i = 0; i < 32; i++)
 606                 regs_buff[601 + i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i));
 607         for (i = 0; i < 32; i++)
 608                 regs_buff[633 + i] = IXGBE_READ_REG(hw, IXGBE_TDH(i));
 609         for (i = 0; i < 32; i++)
 610                 regs_buff[665 + i] = IXGBE_READ_REG(hw, IXGBE_TDT(i));
 611         for (i = 0; i < 32; i++)
 612                 regs_buff[697 + i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
 613         for (i = 0; i < 32; i++)
 614                 regs_buff[729 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAL(i));
 615         for (i = 0; i < 32; i++)
 616                 regs_buff[761 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAH(i));
 617         regs_buff[793] = IXGBE_READ_REG(hw, IXGBE_DTXCTL);
 618         for (i = 0; i < 16; i++)
 619                 regs_buff[794 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
 620         regs_buff[810] = IXGBE_READ_REG(hw, IXGBE_TIPG);
 621         for (i = 0; i < 8; i++)
 622                 regs_buff[811 + i] = IXGBE_READ_REG(hw, IXGBE_TXPBSIZE(i));
 623         regs_buff[819] = IXGBE_READ_REG(hw, IXGBE_MNGTXMAP);
 624
 625         /* Wake Up */
 626         regs_buff[820] = IXGBE_READ_REG(hw, IXGBE_WUC);
 627         regs_buff[821] = IXGBE_READ_REG(hw, IXGBE_WUFC);
 628         regs_buff[822] = IXGBE_READ_REG(hw, IXGBE_WUS);
 629         regs_buff[823] = IXGBE_READ_REG(hw, IXGBE_IPAV);
 630         regs_buff[824] = IXGBE_READ_REG(hw, IXGBE_IP4AT);
 631         regs_buff[825] = IXGBE_READ_REG(hw, IXGBE_IP6AT);
 632         regs_buff[826] = IXGBE_READ_REG(hw, IXGBE_WUPL);
 633         regs_buff[827] = IXGBE_READ_REG(hw, IXGBE_WUPM);
 634         regs_buff[828] = IXGBE_READ_REG(hw, IXGBE_FHFT(0));
 635
 636         /* DCB */
 637         regs_buff[829] = IXGBE_READ_REG(hw, IXGBE_RMCS);
 638         regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_DPMCS);
 639         regs_buff[831] = IXGBE_READ_REG(hw, IXGBE_PDPMCS);
 640         regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RUPPBMR);
 641         for (i = 0; i < 8; i++)
 642                 regs_buff[833 + i] = IXGBE_READ_REG(hw, IXGBE_RT2CR(i));
 643         for (i = 0; i < 8; i++)
 644                 regs_buff[841 + i] = IXGBE_READ_REG(hw, IXGBE_RT2SR(i));
 645         for (i = 0; i < 8; i++)
 646                 regs_buff[849 + i] = IXGBE_READ_REG(hw, IXGBE_TDTQ2TCCR(i));
 647         for (i = 0; i < 8; i++)
 648                 regs_buff[857 + i] = IXGBE_READ_REG(hw, IXGBE_TDTQ2TCSR(i));
 649         for (i = 0; i < 8; i++)
 650                 regs_buff[865 + i] = IXGBE_READ_REG(hw, IXGBE_TDPT2TCCR(i));
 651         for (i = 0; i < 8; i++)
 652                 regs_buff[873 + i] = IXGBE_READ_REG(hw, IXGBE_TDPT2TCSR(i));
 653
 654         /* Statistics */
 655         regs_buff[881] = IXGBE_GET_STAT(adapter, crcerrs);
 656         regs_buff[882] = IXGBE_GET_STAT(adapter, illerrc);
 657         regs_buff[883] = IXGBE_GET_STAT(adapter, errbc);
 658         regs_buff[884] = IXGBE_GET_STAT(adapter, mspdc);
 659         for (i = 0; i < 8; i++)
 660                 regs_buff[885 + i] = IXGBE_GET_STAT(adapter, mpc[i]);
 661         regs_buff[893] = IXGBE_GET_STAT(adapter, mlfc);
 662         regs_buff[894] = IXGBE_GET_STAT(adapter, mrfc);
 663         regs_buff[895] = IXGBE_GET_STAT(adapter, rlec);
 664         regs_buff[896] = IXGBE_GET_STAT(adapter, lxontxc);
 665         regs_buff[897] = IXGBE_GET_STAT(adapter, lxonrxc);
 666         regs_buff[898] = IXGBE_GET_STAT(adapter, lxofftxc);
 667         regs_buff[899] = IXGBE_GET_STAT(adapter, lxoffrxc);
 668         for (i = 0; i < 8; i++)
 669                 regs_buff[900 + i] = IXGBE_GET_STAT(adapter, pxontxc[i]);
 670         for (i = 0; i < 8; i++)
 671                 regs_buff[908 + i] = IXGBE_GET_STAT(adapter, pxonrxc[i]);
 672         for (i = 0; i < 8; i++)
 673                 regs_buff[916 + i] = IXGBE_GET_STAT(adapter, pxofftxc[i]);
 674         for (i = 0; i < 8; i++)
 675                 regs_buff[924 + i] = IXGBE_GET_STAT(adapter, pxoffrxc[i]);
 676         regs_buff[932] = IXGBE_GET_STAT(adapter, prc64);
 677         regs_buff[933] = IXGBE_GET_STAT(adapter, prc127);
 678         regs_buff[934] = IXGBE_GET_STAT(adapter, prc255);
 679         regs_buff[935] = IXGBE_GET_STAT(adapter, prc511);
 680         regs_buff[936] = IXGBE_GET_STAT(adapter, prc1023);
 681         regs_buff[937] = IXGBE_GET_STAT(adapter, prc1522);
 682         regs_buff[938] = IXGBE_GET_STAT(adapter, gprc);
 683         regs_buff[939] = IXGBE_GET_STAT(adapter, bprc);
 684         regs_buff[940] = IXGBE_GET_STAT(adapter, mprc);
 685         regs_buff[941] = IXGBE_GET_STAT(adapter, gptc);
 686         regs_buff[942] = IXGBE_GET_STAT(adapter, gorc);
 687         regs_buff[944] = IXGBE_GET_STAT(adapter, gotc);
 688         for (i = 0; i < 8; i++)
 689                 regs_buff[946 + i] = IXGBE_GET_STAT(adapter, rnbc[i]);
 690         regs_buff[954] = IXGBE_GET_STAT(adapter, ruc);
 691         regs_buff[955] = IXGBE_GET_STAT(adapter, rfc);
 692         regs_buff[956] = IXGBE_GET_STAT(adapter, roc);
 693         regs_buff[957] = IXGBE_GET_STAT(adapter, rjc);
 694         regs_buff[958] = IXGBE_GET_STAT(adapter, mngprc);
 695         regs_buff[959] = IXGBE_GET_STAT(adapter, mngpdc);
 696         regs_buff[960] = IXGBE_GET_STAT(adapter, mngptc);
 697         regs_buff[961] = IXGBE_GET_STAT(adapter, tor);
 698         regs_buff[963] = IXGBE_GET_STAT(adapter, tpr);
 699         regs_buff[964] = IXGBE_GET_STAT(adapter, tpt);
 700         regs_buff[965] = IXGBE_GET_STAT(adapter, ptc64);
 701         regs_buff[966] = IXGBE_GET_STAT(adapter, ptc127);
 702         regs_buff[967] = IXGBE_GET_STAT(adapter, ptc255);
 703         regs_buff[968] = IXGBE_GET_STAT(adapter, ptc511);
 704         regs_buff[969] = IXGBE_GET_STAT(adapter, ptc1023);
 705         regs_buff[970] = IXGBE_GET_STAT(adapter, ptc1522);
 706         regs_buff[971] = IXGBE_GET_STAT(adapter, mptc);
 707         regs_buff[972] = IXGBE_GET_STAT(adapter, bptc);
 708         regs_buff[973] = IXGBE_GET_STAT(adapter, xec);
 709         for (i = 0; i < 16; i++)
 710                 regs_buff[974 + i] = IXGBE_GET_STAT(adapter, qprc[i]);
 711         for (i = 0; i < 16; i++)
 712                 regs_buff[990 + i] = IXGBE_GET_STAT(adapter, qptc[i]);
 713         for (i = 0; i < 16; i++)
 714                 regs_buff[1006 + i] = IXGBE_GET_STAT(adapter, qbrc[i]);
 715         for (i = 0; i < 16; i++)
 716                 regs_buff[1022 + i] = IXGBE_GET_STAT(adapter, qbtc[i]);
 717
 718         /* MAC */
 719         regs_buff[1038] = IXGBE_READ_REG(hw, IXGBE_PCS1GCFIG);
 720         regs_buff[1039] = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
 721         regs_buff[1040] = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
 722         regs_buff[1041] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG0);
 723         regs_buff[1042] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG1);
 724         regs_buff[1043] = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
 725         regs_buff[1044] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
 726         regs_buff[1045] = IXGBE_READ_REG(hw, IXGBE_PCS1GANNP);
 727         regs_buff[1046] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLPNP);
 728         regs_buff[1047] = IXGBE_READ_REG(hw, IXGBE_HLREG0);
 729         regs_buff[1048] = IXGBE_READ_REG(hw, IXGBE_HLREG1);
 730         regs_buff[1049] = IXGBE_READ_REG(hw, IXGBE_PAP);
 731         regs_buff[1050] = IXGBE_READ_REG(hw, IXGBE_MACA);
 732         regs_buff[1051] = IXGBE_READ_REG(hw, IXGBE_APAE);
 733         regs_buff[1052] = IXGBE_READ_REG(hw, IXGBE_ARD);
 734         regs_buff[1053] = IXGBE_READ_REG(hw, IXGBE_AIS);
 735         regs_buff[1054] = IXGBE_READ_REG(hw, IXGBE_MSCA);
 736         regs_buff[1055] = IXGBE_READ_REG(hw, IXGBE_MSRWD);
 737         regs_buff[1056] = IXGBE_READ_REG(hw, IXGBE_MLADD);
 738         regs_buff[1057] = IXGBE_READ_REG(hw, IXGBE_MHADD);
 739         regs_buff[1058] = IXGBE_READ_REG(hw, IXGBE_TREG);
 740         regs_buff[1059] = IXGBE_READ_REG(hw, IXGBE_PCSS1);
 741         regs_buff[1060] = IXGBE_READ_REG(hw, IXGBE_PCSS2);
 742         regs_buff[1061] = IXGBE_READ_REG(hw, IXGBE_XPCSS);
 743         regs_buff[1062] = IXGBE_READ_REG(hw, IXGBE_SERDESC);
 744         regs_buff[1063] = IXGBE_READ_REG(hw, IXGBE_MACS);
 745         regs_buff[1064] = IXGBE_READ_REG(hw, IXGBE_AUTOC);
 746         regs_buff[1065] = IXGBE_READ_REG(hw, IXGBE_LINKS);
 747         regs_buff[1066] = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
 748         regs_buff[1067] = IXGBE_READ_REG(hw, IXGBE_AUTOC3);
 749         regs_buff[1068] = IXGBE_READ_REG(hw, IXGBE_ANLP1);
 750         regs_buff[1069] = IXGBE_READ_REG(hw, IXGBE_ANLP2);
 751         regs_buff[1070] = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
 752
 753         /* Diagnostic */
 754         regs_buff[1071] = IXGBE_READ_REG(hw, IXGBE_RDSTATCTL);
 755         for (i = 0; i < 8; i++)
 756                 regs_buff[1072 + i] = IXGBE_READ_REG(hw, IXGBE_RDSTAT(i));
 757         regs_buff[1080] = IXGBE_READ_REG(hw, IXGBE_RDHMPN);
 758         for (i = 0; i < 4; i++)
 759                 regs_buff[1081 + i] = IXGBE_READ_REG(hw, IXGBE_RIC_DW(i));
 760         regs_buff[1085] = IXGBE_READ_REG(hw, IXGBE_RDPROBE);
 761         regs_buff[1086] = IXGBE_READ_REG(hw, IXGBE_TDSTATCTL);
 762         for (i = 0; i < 8; i++)
 763                 regs_buff[1087 + i] = IXGBE_READ_REG(hw, IXGBE_TDSTAT(i));
 764         regs_buff[1095] = IXGBE_READ_REG(hw, IXGBE_TDHMPN);
 765         for (i = 0; i < 4; i++)
 766                 regs_buff[1096 + i] = IXGBE_READ_REG(hw, IXGBE_TIC_DW(i));
 767         regs_buff[1100] = IXGBE_READ_REG(hw, IXGBE_TDPROBE);
 768         regs_buff[1101] = IXGBE_READ_REG(hw, IXGBE_TXBUFCTRL);
 769         regs_buff[1102] = IXGBE_READ_REG(hw, IXGBE_TXBUFDATA0);
 770         regs_buff[1103] = IXGBE_READ_REG(hw, IXGBE_TXBUFDATA1);
 771         regs_buff[1104] = IXGBE_READ_REG(hw, IXGBE_TXBUFDATA2);
 772         regs_buff[1105] = IXGBE_READ_REG(hw, IXGBE_TXBUFDATA3);
 773         regs_buff[1106] = IXGBE_READ_REG(hw, IXGBE_RXBUFCTRL);
 774         regs_buff[1107] = IXGBE_READ_REG(hw, IXGBE_RXBUFDATA0);
 775         regs_buff[1108] = IXGBE_READ_REG(hw, IXGBE_RXBUFDATA1);
 776         regs_buff[1109] = IXGBE_READ_REG(hw, IXGBE_RXBUFDATA2);
 777         regs_buff[1110] = IXGBE_READ_REG(hw, IXGBE_RXBUFDATA3);
 778         for (i = 0; i < 8; i++)
 779                 regs_buff[1111 + i] = IXGBE_READ_REG(hw, IXGBE_PCIE_DIAG(i));
 780         regs_buff[1119] = IXGBE_READ_REG(hw, IXGBE_RFVAL);
 781         regs_buff[1120] = IXGBE_READ_REG(hw, IXGBE_MDFTC1);
 782         regs_buff[1121] = IXGBE_READ_REG(hw, IXGBE_MDFTC2);
 783         regs_buff[1122] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO1);
 784         regs_buff[1123] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO2);
 785         regs_buff[1124] = IXGBE_READ_REG(hw, IXGBE_MDFTS);
 786         regs_buff[1125] = IXGBE_READ_REG(hw, IXGBE_PCIEECCCTL);
 787         regs_buff[1126] = IXGBE_READ_REG(hw, IXGBE_PBTXECC);
 788         regs_buff[1127] = IXGBE_READ_REG(hw, IXGBE_PBRXECC);
 789 }
 790
 791 static int ixgbe_get_eeprom_len(struct net_device *netdev)
 792 {
 793         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 794         return adapter->hw.eeprom.word_size * 2;
 795 }
 796
 797 static int ixgbe_get_eeprom(struct net_device *netdev,
 798                             struct ethtool_eeprom *eeprom, u8 *bytes)
 799 {
 800         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 801         struct ixgbe_hw *hw = &adapter->hw;
 802         u16 *eeprom_buff;
 803         int first_word, last_word, eeprom_len;
 804         int ret_val = 0;
 805         u16 i;
 806
 807         if (eeprom->len == 0)
 808                 return -EINVAL;
 809
 810         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 811
 812         first_word = eeprom->offset >> 1;
 813         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 814         eeprom_len = last_word - first_word + 1;
 815
 816         eeprom_buff = kmalloc(sizeof(u16) * eeprom_len, GFP_KERNEL);
 817         if (!eeprom_buff)
 818                 return -ENOMEM;
 819
 820         for (i = 0; i < eeprom_len; i++) {
 821                 if ((ret_val = hw->eeprom.ops.read(hw, first_word + i,
 822                     &eeprom_buff[i])))
 823                         break;
 824         }
 825
 826         /* Device's eeprom is always little-endian, word addressable */
 827         for (i = 0; i < eeprom_len; i++)
 828                 le16_to_cpus(&eeprom_buff[i]);
 829
 830         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 831         kfree(eeprom_buff);
 832
 833         return ret_val;
 834 }
 835
 836 static void ixgbe_get_drvinfo(struct net_device *netdev,
 837                               struct ethtool_drvinfo *drvinfo)
 838 {
 839         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 840         char firmware_version[32];
 841
 842         strncpy(drvinfo->driver, ixgbe_driver_name,
 843                 sizeof(drvinfo->driver) - 1);
 844         strncpy(drvinfo->version, ixgbe_driver_version,
 845                 sizeof(drvinfo->version) - 1);
 846
 847         snprintf(firmware_version, sizeof(firmware_version), "%d.%d-%d",
 848                  (adapter->eeprom_version & 0xF000) >> 12,
 849                  (adapter->eeprom_version & 0x0FF0) >> 4,
 850                  adapter->eeprom_version & 0x000F);
 851
 852         strncpy(drvinfo->fw_version, firmware_version,
 853                 sizeof(drvinfo->fw_version));
 854         strncpy(drvinfo->bus_info, pci_name(adapter->pdev),
 855                 sizeof(drvinfo->bus_info));
 856         drvinfo->n_stats = IXGBE_STATS_LEN;
 857         drvinfo->testinfo_len = IXGBE_TEST_LEN;
 858         drvinfo->regdump_len = ixgbe_get_regs_len(netdev);
 859 }
 860
 861 static void ixgbe_get_ringparam(struct net_device *netdev,
 862                                 struct ethtool_ringparam *ring)
 863 {
 864         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 865         struct ixgbe_ring *tx_ring = adapter->tx_ring[0];
 866         struct ixgbe_ring *rx_ring = adapter->rx_ring[0];
 867
 868         ring->rx_max_pending = IXGBE_MAX_RXD;
 869         ring->tx_max_pending = IXGBE_MAX_TXD;
 870         ring->rx_mini_max_pending = 0;
 871         ring->rx_jumbo_max_pending = 0;
 872         ring->rx_pending = rx_ring->count;
 873         ring->tx_pending = tx_ring->count;
 874         ring->rx_mini_pending = 0;
 875         ring->rx_jumbo_pending = 0;
 876 }
 877
 878 static int ixgbe_set_ringparam(struct net_device *netdev,
 879                                struct ethtool_ringparam *ring)
 880 {
 881         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 882         struct ixgbe_ring *temp_tx_ring, *temp_rx_ring;
 883         int i, err = 0;
 884         u32 new_rx_count, new_tx_count;
 885         bool need_update = false;
 886
 887         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 888                 return -EINVAL;
 889
 890         new_rx_count = max(ring->rx_pending, (u32)IXGBE_MIN_RXD);
 891         new_rx_count = min(new_rx_count, (u32)IXGBE_MAX_RXD);
 892         new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
 893
 894         new_tx_count = max(ring->tx_pending, (u32)IXGBE_MIN_TXD);
 895         new_tx_count = min(new_tx_count, (u32)IXGBE_MAX_TXD);
 896         new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
 897
 898         if ((new_tx_count == adapter->tx_ring[0]->count) &&
 899             (new_rx_count == adapter->rx_ring[0]->count)) {
 900                 /* nothing to do */
 901                 return 0;
 902         }
 903
 904         while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
 905                 msleep(1);
 906
 907         if (!netif_running(adapter->netdev)) {
 908                 for (i = 0; i < adapter->num_tx_queues; i++)
 909                         adapter->tx_ring[i]->count = new_tx_count;
 910                 for (i = 0; i < adapter->num_rx_queues; i++)
 911                         adapter->rx_ring[i]->count = new_rx_count;
 912                 adapter->tx_ring_count = new_tx_count;
 913                 adapter->rx_ring_count = new_rx_count;
 914                 goto clear_reset;
 915         }
 916
 917         temp_tx_ring = vmalloc(adapter->num_tx_queues * sizeof(struct ixgbe_ring));
 918         if (!temp_tx_ring) {
 919                 err = -ENOMEM;
 920                 goto clear_reset;
 921         }
 922
 923         if (new_tx_count != adapter->tx_ring_count) {
 924                 for (i = 0; i < adapter->num_tx_queues; i++) {
 925                         memcpy(&temp_tx_ring[i], adapter->tx_ring[i],
 926                                sizeof(struct ixgbe_ring));
 927                         temp_tx_ring[i].count = new_tx_count;
 928                         err = ixgbe_setup_tx_resources(&temp_tx_ring[i]);
 929                         if (err) {
 930                                 while (i) {
 931                                         i--;
 932                                         ixgbe_free_tx_resources(&temp_tx_ring[i]);
 933                                 }
 934                                 goto clear_reset;
 935                         }
 936                 }
 937                 need_update = true;
 938         }
 939
 940         temp_rx_ring = vmalloc(adapter->num_rx_queues * sizeof(struct ixgbe_ring));
 941         if (!temp_rx_ring) {
 942                 err = -ENOMEM;
 943                 goto err_setup;
 944         }
 945
 946         if (new_rx_count != adapter->rx_ring_count) {
 947                 for (i = 0; i < adapter->num_rx_queues; i++) {
 948                         memcpy(&temp_rx_ring[i], adapter->rx_ring[i],
 949                                sizeof(struct ixgbe_ring));
 950                         temp_rx_ring[i].count = new_rx_count;
 951                         err = ixgbe_setup_rx_resources(&temp_rx_ring[i]);
 952                         if (err) {
 953                                 while (i) {
 954                                         i--;
 955                                         ixgbe_free_rx_resources(&temp_rx_ring[i]);
 956                                 }
 957                                 goto err_setup;
 958                         }
 959                 }
 960                 need_update = true;
 961         }
 962
 963         /* if rings need to be updated, here's the place to do it in one shot */
 964         if (need_update) {
 965                 ixgbe_down(adapter);
 966
 967                 /* tx */
 968                 if (new_tx_count != adapter->tx_ring_count) {
 969                         for (i = 0; i < adapter->num_tx_queues; i++) {
 970                                 ixgbe_free_tx_resources(adapter->tx_ring[i]);
 971                                 memcpy(adapter->tx_ring[i], &temp_tx_ring[i],
 972                                        sizeof(struct ixgbe_ring));
 973                         }
 974                         adapter->tx_ring_count = new_tx_count;
 975                 }
 976
 977                 /* rx */
 978                 if (new_rx_count != adapter->rx_ring_count) {
 979                         for (i = 0; i < adapter->num_rx_queues; i++) {
 980                                 ixgbe_free_rx_resources(adapter->rx_ring[i]);
 981                                 memcpy(adapter->rx_ring[i], &temp_rx_ring[i],
 982                                        sizeof(struct ixgbe_ring));
 983                         }
 984                         adapter->rx_ring_count = new_rx_count;
 985                 }
 986                 ixgbe_up(adapter);
 987         }
 988
 989         vfree(temp_rx_ring);
 990 err_setup:
 991         vfree(temp_tx_ring);
 992 clear_reset:
 993         clear_bit(__IXGBE_RESETTING, &adapter->state);
 994         return err;
 995 }
 996
 997 static int ixgbe_get_sset_count(struct net_device *netdev, int sset)
 998 {
 999         switch (sset) {
1000         case ETH_SS_TEST:
1001                 return IXGBE_TEST_LEN;
1002         case ETH_SS_STATS:
1003                 return IXGBE_STATS_LEN;
1004         case ETH_SS_NTUPLE_FILTERS:
1005                 return ETHTOOL_MAX_NTUPLE_LIST_ENTRY *
1006                        ETHTOOL_MAX_NTUPLE_STRING_PER_ENTRY;
1007         default:
1008                 return -EOPNOTSUPP;
1009         }
1010 }
1011
1012 static void ixgbe_get_ethtool_stats(struct net_device *netdev,
1013                                     struct ethtool_stats *stats, u64 *data)
1014 {
1015         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1016         struct rtnl_link_stats64 temp;
1017         const struct rtnl_link_stats64 *net_stats;
1018         unsigned int start;
1019         struct ixgbe_ring *ring;
1020         int i, j;
1021         char *p = NULL;
1022
1023         ixgbe_update_stats(adapter);
1024         net_stats = dev_get_stats(netdev, &temp);
1025         for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
1026                 switch (ixgbe_gstrings_stats[i].type) {
1027                 case NETDEV_STATS:
1028                         p = (char *) net_stats +
1029                                         ixgbe_gstrings_stats[i].stat_offset;
1030                         break;
1031                 case IXGBE_STATS:
1032                         p = (char *) adapter +
1033                                         ixgbe_gstrings_stats[i].stat_offset;
1034                         break;
1035                 }
1036
1037                 data[i] = (ixgbe_gstrings_stats[i].sizeof_stat ==
1038                            sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1039         }
1040         for (j = 0; j < adapter->num_tx_queues; j++) {
1041                 ring = adapter->tx_ring[j];
1042                 do {
1043                         start = u64_stats_fetch_begin_bh(&ring->syncp);
1044                         data[i]   = ring->stats.packets;
1045                         data[i+1] = ring->stats.bytes;
1046                 } while (u64_stats_fetch_retry_bh(&ring->syncp, start));
1047                 i += 2;
1048         }
1049         for (j = 0; j < adapter->num_rx_queues; j++) {
1050                 ring = adapter->rx_ring[j];
1051                 do {
1052                         start = u64_stats_fetch_begin_bh(&ring->syncp);
1053                         data[i]   = ring->stats.packets;
1054                         data[i+1] = ring->stats.bytes;
1055                 } while (u64_stats_fetch_retry_bh(&ring->syncp, start));
1056                 i += 2;
1057         }
1058         if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
1059                 for (j = 0; j < MAX_TX_PACKET_BUFFERS; j++) {
1060                         data[i++] = adapter->stats.pxontxc[j];
1061                         data[i++] = adapter->stats.pxofftxc[j];
1062                 }
1063                 for (j = 0; j < MAX_RX_PACKET_BUFFERS; j++) {
1064                         data[i++] = adapter->stats.pxonrxc[j];
1065                         data[i++] = adapter->stats.pxoffrxc[j];
1066                 }
1067         }
1068 }
1069
1070 static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
1071                               u8 *data)
1072 {
1073         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1074         char *p = (char *)data;
1075         int i;
1076
1077         switch (stringset) {
1078         case ETH_SS_TEST:
1079                 memcpy(data, *ixgbe_gstrings_test,
1080                        IXGBE_TEST_LEN * ETH_GSTRING_LEN);
1081                 break;
1082         case ETH_SS_STATS:
1083                 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
1084                         memcpy(p, ixgbe_gstrings_stats[i].stat_string,
1085                                ETH_GSTRING_LEN);
1086                         p += ETH_GSTRING_LEN;
1087                 }
1088                 for (i = 0; i < adapter->num_tx_queues; i++) {
1089                         sprintf(p, "tx_queue_%u_packets", i);
1090                         p += ETH_GSTRING_LEN;
1091                         sprintf(p, "tx_queue_%u_bytes", i);
1092                         p += ETH_GSTRING_LEN;
1093                 }
1094                 for (i = 0; i < adapter->num_rx_queues; i++) {
1095                         sprintf(p, "rx_queue_%u_packets", i);
1096                         p += ETH_GSTRING_LEN;
1097                         sprintf(p, "rx_queue_%u_bytes", i);
1098                         p += ETH_GSTRING_LEN;
1099                 }
1100                 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
1101                         for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) {
1102                                 sprintf(p, "tx_pb_%u_pxon", i);
1103                                 p += ETH_GSTRING_LEN;
1104                                 sprintf(p, "tx_pb_%u_pxoff", i);
1105                                 p += ETH_GSTRING_LEN;
1106                         }
1107                         for (i = 0; i < MAX_RX_PACKET_BUFFERS; i++) {
1108                                 sprintf(p, "rx_pb_%u_pxon", i);
1109                                 p += ETH_GSTRING_LEN;
1110                                 sprintf(p, "rx_pb_%u_pxoff", i);
1111                                 p += ETH_GSTRING_LEN;
1112                         }
1113                 }
1114                 /* BUG_ON(p - data != IXGBE_STATS_LEN * ETH_GSTRING_LEN); */
1115                 break;
1116         }
1117 }
1118
1119 static int ixgbe_link_test(struct ixgbe_adapter *adapter, u64 *data)
1120 {
1121         struct ixgbe_hw *hw = &adapter->hw;
1122         bool link_up;
1123         u32 link_speed = 0;
1124         *data = 0;
1125
1126         hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
1127         if (link_up)
1128                 return *data;
1129         else
1130                 *data = 1;
1131         return *data;
1132 }
1133
1134 /* ethtool register test data */
1135 struct ixgbe_reg_test {
1136         u16 reg;
1137         u8  array_len;
1138         u8  test_type;
1139         u32 mask;
1140         u32 write;
1141 };
1142
1143 /* In the hardware, registers are laid out either singly, in arrays
1144  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
1145  * most tests take place on arrays or single registers (handled
1146  * as a single-element array) and special-case the tables.
1147  * Table tests are always pattern tests.
1148  *
1149  * We also make provision for some required setup steps by specifying
1150  * registers to be written without any read-back testing.
1151  */
1152
1153 #define PATTERN_TEST    1
1154 #define SET_READ_TEST   2
1155 #define WRITE_NO_TEST   3
1156 #define TABLE32_TEST    4
1157 #define TABLE64_TEST_LO 5
1158 #define TABLE64_TEST_HI 6
1159
1160 /* default 82599 register test */
1161 static const struct ixgbe_reg_test reg_test_82599[] = {
1162         { IXGBE_FCRTL_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1163         { IXGBE_FCRTH_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1164         { IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1165         { IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
1166         { IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
1167         { IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1168         { IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1169         { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
1170         { IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1171         { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
1172         { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1173         { IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1174         { IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1175         { IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1176         { IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
1177         { IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000001, 0x00000001 },
1178         { IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1179         { IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x8001FFFF, 0x800CFFFF },
1180         { IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1181         { 0, 0, 0, 0 }
1182 };
1183
1184 /* default 82598 register test */
1185 static const struct ixgbe_reg_test reg_test_82598[] = {
1186         { IXGBE_FCRTL(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1187         { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1188         { IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1189         { IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
1190         { IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1191         { IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1192         { IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1193         /* Enable all four RX queues before testing. */
1194         { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
1195         /* RDH is read-only for 82598, only test RDT. */
1196         { IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1197         { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
1198         { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1199         { IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1200         { IXGBE_TIPG, 1, PATTERN_TEST, 0x000000FF, 0x000000FF },
1201         { IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1202         { IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1203         { IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1204         { IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000003, 0x00000003 },
1205         { IXGBE_DTXCTL, 1, SET_READ_TEST, 0x00000005, 0x00000005 },
1206         { IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1207         { IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x800CFFFF, 0x800CFFFF },
1208         { IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1209         { 0, 0, 0, 0 }
1210 };
1211
1212 static const u32 register_test_patterns[] = {
1213         0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
1214 };
1215
1216 #define REG_PATTERN_TEST(R, M, W)                                             \
1217 {                                                                             \
1218         u32 pat, val, before;                                                 \
1219         for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {      \
1220                 before = readl(adapter->hw.hw_addr + R);                      \
1221                 writel((register_test_patterns[pat] & W),                     \
1222                        (adapter->hw.hw_addr + R));                            \
1223                 val = readl(adapter->hw.hw_addr + R);                         \
1224                 if (val != (register_test_patterns[pat] & W & M)) {           \
1225                         e_err(drv, "pattern test reg %04X failed: got "       \
1226                               "0x%08X expected 0x%08X\n",                     \
1227                               R, val, (register_test_patterns[pat] & W & M)); \
1228                         *data = R;                                            \
1229                         writel(before, adapter->hw.hw_addr + R);              \
1230                         return 1;                                             \
1231                 }                                                             \
1232                 writel(before, adapter->hw.hw_addr + R);                      \
1233         }                                                                     \
1234 }
1235
1236 #define REG_SET_AND_CHECK(R, M, W)                                            \
1237 {                                                                             \
1238         u32 val, before;                                                      \
1239         before = readl(adapter->hw.hw_addr + R);                              \
1240         writel((W & M), (adapter->hw.hw_addr + R));                           \
1241         val = readl(adapter->hw.hw_addr + R);                                 \
1242         if ((W & M) != (val & M)) {                                           \
1243                 e_err(drv, "set/check reg %04X test failed: got 0x%08X "  \
1244                       "expected 0x%08X\n", R, (val & M), (W & M));        \
1245                 *data = R;                                                    \
1246                 writel(before, (adapter->hw.hw_addr + R));                    \
1247                 return 1;                                                     \
1248         }                                                                     \
1249         writel(before, (adapter->hw.hw_addr + R));                            \
1250 }
1251
1252 static int ixgbe_reg_test(struct ixgbe_adapter *adapter, u64 *data)
1253 {
1254         const struct ixgbe_reg_test *test;
1255         u32 value, before, after;
1256         u32 i, toggle;
1257
1258         switch (adapter->hw.mac.type) {
1259         case ixgbe_mac_82598EB:
1260                 toggle = 0x7FFFF3FF;
1261                 test = reg_test_82598;
1262                 break;
1263         case ixgbe_mac_82599EB:
1264         case ixgbe_mac_X540:
1265                 toggle = 0x7FFFF30F;
1266                 test = reg_test_82599;
1267                 break;
1268         default:
1269                 *data = 1;
1270                 return 1;
1271                 break;
1272         }
1273
1274         /*
1275          * Because the status register is such a special case,
1276          * we handle it separately from the rest of the register
1277          * tests.  Some bits are read-only, some toggle, and some
1278          * are writeable on newer MACs.
1279          */
1280         before = IXGBE_READ_REG(&adapter->hw, IXGBE_STATUS);
1281         value = (IXGBE_READ_REG(&adapter->hw, IXGBE_STATUS) & toggle);
1282         IXGBE_WRITE_REG(&adapter->hw, IXGBE_STATUS, toggle);
1283         after = IXGBE_READ_REG(&adapter->hw, IXGBE_STATUS) & toggle;
1284         if (value != after) {
1285                 e_err(drv, "failed STATUS register test got: 0x%08X "
1286                       "expected: 0x%08X\n", after, value);
1287                 *data = 1;
1288                 return 1;
1289         }
1290         /* restore previous status */
1291         IXGBE_WRITE_REG(&adapter->hw, IXGBE_STATUS, before);
1292
1293         /*
1294          * Perform the remainder of the register test, looping through
1295          * the test table until we either fail or reach the null entry.
1296          */
1297         while (test->reg) {
1298                 for (i = 0; i < test->array_len; i++) {
1299                         switch (test->test_type) {
1300                         case PATTERN_TEST:
1301                                 REG_PATTERN_TEST(test->reg + (i * 0x40),
1302                                                 test->mask,
1303                                                 test->write);
1304                                 break;
1305                         case SET_READ_TEST:
1306                                 REG_SET_AND_CHECK(test->reg + (i * 0x40),
1307                                                 test->mask,
1308                                                 test->write);
1309                                 break;
1310                         case WRITE_NO_TEST:
1311                                 writel(test->write,
1312                                        (adapter->hw.hw_addr + test->reg)
1313                                        + (i * 0x40));
1314                                 break;
1315                         case TABLE32_TEST:
1316                                 REG_PATTERN_TEST(test->reg + (i * 4),
1317                                                 test->mask,
1318                                                 test->write);
1319                                 break;
1320                         case TABLE64_TEST_LO:
1321                                 REG_PATTERN_TEST(test->reg + (i * 8),
1322                                                 test->mask,
1323                                                 test->write);
1324                                 break;
1325                         case TABLE64_TEST_HI:
1326                                 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
1327                                                 test->mask,
1328                                                 test->write);
1329                                 break;
1330                         }
1331                 }
1332                 test++;
1333         }
1334
1335         *data = 0;
1336         return 0;
1337 }
1338
1339 static int ixgbe_eeprom_test(struct ixgbe_adapter *adapter, u64 *data)
1340 {
1341         struct ixgbe_hw *hw = &adapter->hw;
1342         if (hw->eeprom.ops.validate_checksum(hw, NULL))
1343                 *data = 1;
1344         else
1345                 *data = 0;
1346         return *data;
1347 }
1348
1349 static irqreturn_t ixgbe_test_intr(int irq, void *data)
1350 {
1351         struct net_device *netdev = (struct net_device *) data;
1352         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1353
1354         adapter->test_icr |= IXGBE_READ_REG(&adapter->hw, IXGBE_EICR);
1355
1356         return IRQ_HANDLED;
1357 }
1358
1359 static int ixgbe_intr_test(struct ixgbe_adapter *adapter, u64 *data)
1360 {
1361         struct net_device *netdev = adapter->netdev;
1362         u32 mask, i = 0, shared_int = true;
1363         u32 irq = adapter->pdev->irq;
1364
1365         *data = 0;
1366
1367         /* Hook up test interrupt handler just for this test */
1368         if (adapter->msix_entries) {
1369                 /* NOTE: we don't test MSI-X interrupts here, yet */
1370                 return 0;
1371         } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) {
1372                 shared_int = false;
1373                 if (request_irq(irq, ixgbe_test_intr, 0, netdev->name,
1374                                 netdev)) {
1375                         *data = 1;
1376                         return -1;
1377                 }
1378         } else if (!request_irq(irq, ixgbe_test_intr, IRQF_PROBE_SHARED,
1379                                 netdev->name, netdev)) {
1380                 shared_int = false;
1381         } else if (request_irq(irq, ixgbe_test_intr, IRQF_SHARED,
1382                                netdev->name, netdev)) {
1383                 *data = 1;
1384                 return -1;
1385         }
1386         e_info(hw, "testing %s interrupt\n", shared_int ?
1387                "shared" : "unshared");
1388
1389         /* Disable all the interrupts */
1390         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
1391         msleep(10);
1392
1393         /* Test each interrupt */
1394         for (; i < 10; i++) {
1395                 /* Interrupt to test */
1396                 mask = 1 << i;
1397
1398                 if (!shared_int) {
1399                         /*
1400                          * Disable the interrupts to be reported in
1401                          * the cause register and then force the same
1402                          * interrupt and see if one gets posted.  If
1403                          * an interrupt was posted to the bus, the
1404                          * test failed.
1405                          */
1406                         adapter->test_icr = 0;
1407                         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
1408                                         ~mask & 0x00007FFF);
1409                         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
1410                                         ~mask & 0x00007FFF);
1411                         msleep(10);
1412
1413                         if (adapter->test_icr & mask) {
1414                                 *data = 3;
1415                                 break;
1416                         }
1417                 }
1418
1419                 /*
1420                  * Enable the interrupt to be reported in the cause
1421                  * register and then force the same interrupt and see
1422                  * if one gets posted.  If an interrupt was not posted
1423                  * to the bus, the test failed.
1424                  */
1425                 adapter->test_icr = 0;
1426                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
1427                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask);
1428                 msleep(10);
1429
1430                 if (!(adapter->test_icr &mask)) {
1431                         *data = 4;
1432                         break;
1433                 }
1434
1435                 if (!shared_int) {
1436                         /*
1437                          * Disable the other interrupts to be reported in
1438                          * the cause register and then force the other
1439                          * interrupts and see if any get posted.  If
1440                          * an interrupt was posted to the bus, the
1441                          * test failed.
1442                          */
1443                         adapter->test_icr = 0;
1444                         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
1445                                         ~mask & 0x00007FFF);
1446                         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
1447                                         ~mask & 0x00007FFF);
1448                         msleep(10);
1449
1450                         if (adapter->test_icr) {
1451                                 *data = 5;
1452                                 break;
1453                         }
1454                 }
1455         }
1456
1457         /* Disable all the interrupts */
1458         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
1459         msleep(10);
1460
1461         /* Unhook test interrupt handler */
1462         free_irq(irq, netdev);
1463
1464         return *data;
1465 }
1466
1467 static void ixgbe_free_desc_rings(struct ixgbe_adapter *adapter)
1468 {
1469         struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
1470         struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
1471         struct ixgbe_hw *hw = &adapter->hw;
1472         u32 reg_ctl;
1473
1474         /* shut down the DMA engines now so they can be reinitialized later */
1475
1476         /* first Rx */
1477         reg_ctl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1478         reg_ctl &= ~IXGBE_RXCTRL_RXEN;
1479         IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, reg_ctl);
1480         ixgbe_disable_rx_queue(adapter, rx_ring);
1481
1482         /* now Tx */
1483         reg_ctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(tx_ring->reg_idx));
1484         reg_ctl &= ~IXGBE_TXDCTL_ENABLE;
1485         IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(tx_ring->reg_idx), reg_ctl);
1486
1487         switch (hw->mac.type) {
1488         case ixgbe_mac_82599EB:
1489         case ixgbe_mac_X540:
1490                 reg_ctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL);
1491                 reg_ctl &= ~IXGBE_DMATXCTL_TE;
1492                 IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, reg_ctl);
1493                 break;
1494         default:
1495                 break;
1496         }
1497
1498         ixgbe_reset(adapter);
1499
1500         ixgbe_free_tx_resources(&adapter->test_tx_ring);
1501         ixgbe_free_rx_resources(&adapter->test_rx_ring);
1502 }
1503
1504 static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
1505 {
1506         struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
1507         struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
1508         u32 rctl, reg_data;
1509         int ret_val;
1510         int err;
1511
1512         /* Setup Tx descriptor ring and Tx buffers */
1513         tx_ring->count = IXGBE_DEFAULT_TXD;
1514         tx_ring->queue_index = 0;
1515         tx_ring->dev = &adapter->pdev->dev;
1516         tx_ring->netdev = adapter->netdev;
1517         tx_ring->reg_idx = adapter->tx_ring[0]->reg_idx;
1518         tx_ring->numa_node = adapter->node;
1519
1520         err = ixgbe_setup_tx_resources(tx_ring);
1521         if (err)
1522                 return 1;
1523
1524         switch (adapter->hw.mac.type) {
1525         case ixgbe_mac_82599EB:
1526         case ixgbe_mac_X540:
1527                 reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_DMATXCTL);
1528                 reg_data |= IXGBE_DMATXCTL_TE;
1529                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_DMATXCTL, reg_data);
1530                 break;
1531         default:
1532                 break;
1533         }
1534
1535         ixgbe_configure_tx_ring(adapter, tx_ring);
1536
1537         /* Setup Rx Descriptor ring and Rx buffers */
1538         rx_ring->count = IXGBE_DEFAULT_RXD;
1539         rx_ring->queue_index = 0;
1540         rx_ring->dev = &adapter->pdev->dev;
1541         rx_ring->netdev = adapter->netdev;
1542         rx_ring->reg_idx = adapter->rx_ring[0]->reg_idx;
1543         rx_ring->rx_buf_len = IXGBE_RXBUFFER_2048;
1544         rx_ring->numa_node = adapter->node;
1545
1546         err = ixgbe_setup_rx_resources(rx_ring);
1547         if (err) {
1548                 ret_val = 4;
1549                 goto err_nomem;
1550         }
1551
1552         rctl = IXGBE_READ_REG(&adapter->hw, IXGBE_RXCTRL);
1553         IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXCTRL, rctl & ~IXGBE_RXCTRL_RXEN);
1554
1555         ixgbe_configure_rx_ring(adapter, rx_ring);
1556
1557         rctl |= IXGBE_RXCTRL_RXEN | IXGBE_RXCTRL_DMBYPS;
1558         IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXCTRL, rctl);
1559
1560         return 0;
1561
1562 err_nomem:
1563         ixgbe_free_desc_rings(adapter);
1564         return ret_val;
1565 }
1566
1567 static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter)
1568 {
1569         struct ixgbe_hw *hw = &adapter->hw;
1570         u32 reg_data;
1571
1572         /* right now we only support MAC loopback in the driver */
1573         reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_HLREG0);
1574         /* Setup MAC loopback */
1575         reg_data |= IXGBE_HLREG0_LPBK;
1576         IXGBE_WRITE_REG(&adapter->hw, IXGBE_HLREG0, reg_data);
1577
1578         reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_FCTRL);
1579         reg_data |= IXGBE_FCTRL_BAM | IXGBE_FCTRL_SBP | IXGBE_FCTRL_MPE;
1580         IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, reg_data);
1581
1582         reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_AUTOC);
1583         reg_data &= ~IXGBE_AUTOC_LMS_MASK;
1584         reg_data |= IXGBE_AUTOC_LMS_10G_LINK_NO_AN | IXGBE_AUTOC_FLU;
1585         IXGBE_WRITE_REG(&adapter->hw, IXGBE_AUTOC, reg_data);
1586         IXGBE_WRITE_FLUSH(&adapter->hw);
1587         msleep(10);
1588
1589         /* Disable Atlas Tx lanes; re-enabled in reset path */
1590         if (hw->mac.type == ixgbe_mac_82598EB) {
1591                 u8 atlas;
1592
1593                 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &atlas);
1594                 atlas |= IXGBE_ATLAS_PDN_TX_REG_EN;
1595                 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, atlas);
1596
1597                 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, &atlas);
1598                 atlas |= IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
1599                 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, atlas);
1600
1601                 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, &atlas);
1602                 atlas |= IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
1603                 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, atlas);
1604
1605                 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, &atlas);
1606                 atlas |= IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
1607                 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, atlas);
1608         }
1609
1610         return 0;
1611 }
1612
1613 static void ixgbe_loopback_cleanup(struct ixgbe_adapter *adapter)
1614 {
1615         u32 reg_data;
1616
1617         reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_HLREG0);
1618         reg_data &= ~IXGBE_HLREG0_LPBK;
1619         IXGBE_WRITE_REG(&adapter->hw, IXGBE_HLREG0, reg_data);
1620 }
1621
1622 static void ixgbe_create_lbtest_frame(struct sk_buff *skb,
1623                                       unsigned int frame_size)
1624 {
1625         memset(skb->data, 0xFF, frame_size);
1626         frame_size &= ~1;
1627         memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
1628         memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
1629         memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
1630 }
1631
1632 static int ixgbe_check_lbtest_frame(struct sk_buff *skb,
1633                                     unsigned int frame_size)
1634 {
1635         frame_size &= ~1;
1636         if (*(skb->data + 3) == 0xFF) {
1637                 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
1638                     (*(skb->data + frame_size / 2 + 12) == 0xAF)) {
1639                         return 0;
1640                 }
1641         }
1642         return 13;
1643 }
1644
1645 static u16 ixgbe_clean_test_rings(struct ixgbe_ring *rx_ring,
1646                                   struct ixgbe_ring *tx_ring,
1647                                   unsigned int size)
1648 {
1649         union ixgbe_adv_rx_desc *rx_desc;
1650         struct ixgbe_rx_buffer *rx_buffer_info;
1651         struct ixgbe_tx_buffer *tx_buffer_info;
1652         const int bufsz = rx_ring->rx_buf_len;
1653         u32 staterr;
1654         u16 rx_ntc, tx_ntc, count = 0;
1655
1656         /* initialize next to clean and descriptor values */
1657         rx_ntc = rx_ring->next_to_clean;
1658         tx_ntc = tx_ring->next_to_clean;
1659         rx_desc = IXGBE_RX_DESC_ADV(rx_ring, rx_ntc);
1660         staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
1661
1662         while (staterr & IXGBE_RXD_STAT_DD) {
1663                 /* check Rx buffer */
1664                 rx_buffer_info = &rx_ring->rx_buffer_info[rx_ntc];
1665
1666                 /* unmap Rx buffer, will be remapped by alloc_rx_buffers */
1667                 dma_unmap_single(rx_ring->dev,
1668                                  rx_buffer_info->dma,
1669                                  bufsz,
1670                                  DMA_FROM_DEVICE);
1671                 rx_buffer_info->dma = 0;
1672
1673                 /* verify contents of skb */
1674                 if (!ixgbe_check_lbtest_frame(rx_buffer_info->skb, size))
1675                         count++;
1676
1677                 /* unmap buffer on Tx side */
1678                 tx_buffer_info = &tx_ring->tx_buffer_info[tx_ntc];
1679                 ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info);
1680
1681                 /* increment Rx/Tx next to clean counters */
1682                 rx_ntc++;
1683                 if (rx_ntc == rx_ring->count)
1684                         rx_ntc = 0;
1685                 tx_ntc++;
1686                 if (tx_ntc == tx_ring->count)
1687                         tx_ntc = 0;
1688
1689                 /* fetch next descriptor */
1690                 rx_desc = IXGBE_RX_DESC_ADV(rx_ring, rx_ntc);
1691                 staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
1692         }
1693
1694         /* re-map buffers to ring, store next to clean values */
1695         ixgbe_alloc_rx_buffers(rx_ring, count);
1696         rx_ring->next_to_clean = rx_ntc;
1697         tx_ring->next_to_clean = tx_ntc;
1698
1699         return count;
1700 }
1701
1702 static int ixgbe_run_loopback_test(struct ixgbe_adapter *adapter)
1703 {
1704         struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
1705         struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
1706         int i, j, lc, good_cnt, ret_val = 0;
1707         unsigned int size = 1024;
1708         netdev_tx_t tx_ret_val;
1709         struct sk_buff *skb;
1710
1711         /* allocate test skb */
1712         skb = alloc_skb(size, GFP_KERNEL);
1713         if (!skb)
1714                 return 11;
1715
1716         /* place data into test skb */
1717         ixgbe_create_lbtest_frame(skb, size);
1718         skb_put(skb, size);
1719
1720         /*
1721          * Calculate the loop count based on the largest descriptor ring
1722          * The idea is to wrap the largest ring a number of times using 64
1723          * send/receive pairs during each loop
1724          */
1725
1726         if (rx_ring->count <= tx_ring->count)
1727                 lc = ((tx_ring->count / 64) * 2) + 1;
1728         else
1729                 lc = ((rx_ring->count / 64) * 2) + 1;
1730
1731         for (j = 0; j <= lc; j++) {
1732                 /* reset count of good packets */
1733                 good_cnt = 0;
1734
1735                 /* place 64 packets on the transmit queue*/
1736                 for (i = 0; i < 64; i++) {
1737                         skb_get(skb);
1738                         tx_ret_val = ixgbe_xmit_frame_ring(skb,
1739                                                            adapter,
1740                                                            tx_ring);
1741                         if (tx_ret_val == NETDEV_TX_OK)
1742                                 good_cnt++;
1743                 }
1744
1745                 if (good_cnt != 64) {
1746                         ret_val = 12;
1747                         break;
1748                 }
1749
1750                 /* allow 200 milliseconds for packets to go from Tx to Rx */
1751                 msleep(200);
1752
1753                 good_cnt = ixgbe_clean_test_rings(rx_ring, tx_ring, size);
1754                 if (good_cnt != 64) {
1755                         ret_val = 13;
1756                         break;
1757                 }
1758         }
1759
1760         /* free the original skb */
1761         kfree_skb(skb);
1762
1763         return ret_val;
1764 }
1765
1766 static int ixgbe_loopback_test(struct ixgbe_adapter *adapter, u64 *data)
1767 {
1768         *data = ixgbe_setup_desc_rings(adapter);
1769         if (*data)
1770                 goto out;
1771         *data = ixgbe_setup_loopback_test(adapter);
1772         if (*data)
1773                 goto err_loopback;
1774         *data = ixgbe_run_loopback_test(adapter);
1775         ixgbe_loopback_cleanup(adapter);
1776
1777 err_loopback:
1778         ixgbe_free_desc_rings(adapter);
1779 out:
1780         return *data;
1781 }
1782
1783 static void ixgbe_diag_test(struct net_device *netdev,
1784                             struct ethtool_test *eth_test, u64 *data)
1785 {
1786         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1787         bool if_running = netif_running(netdev);
1788
1789         set_bit(__IXGBE_TESTING, &adapter->state);
1790         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1791                 /* Offline tests */
1792
1793                 e_info(hw, "offline testing starting\n");
1794
1795                 /* Link test performed before hardware reset so autoneg doesn't
1796                  * interfere with test result */
1797                 if (ixgbe_link_test(adapter, &data[4]))
1798                         eth_test->flags |= ETH_TEST_FL_FAILED;
1799
1800                 if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
1801                         int i;
1802                         for (i = 0; i < adapter->num_vfs; i++) {
1803                                 if (adapter->vfinfo[i].clear_to_send) {
1804                                         netdev_warn(netdev, "%s",
1805                                                     "offline diagnostic is not "
1806                                                     "supported when VFs are "
1807                                                     "present\n");
1808                                         data[0] = 1;
1809                                         data[1] = 1;
1810                                         data[2] = 1;
1811                                         data[3] = 1;
1812                                         eth_test->flags |= ETH_TEST_FL_FAILED;
1813                                         clear_bit(__IXGBE_TESTING,
1814                                                   &adapter->state);
1815                                         goto skip_ol_tests;
1816                                 }
1817                         }
1818                 }
1819
1820                 if (if_running)
1821                         /* indicate we're in test mode */
1822                         dev_close(netdev);
1823                 else
1824                         ixgbe_reset(adapter);
1825
1826                 e_info(hw, "register testing starting\n");
1827                 if (ixgbe_reg_test(adapter, &data[0]))
1828                         eth_test->flags |= ETH_TEST_FL_FAILED;
1829
1830                 ixgbe_reset(adapter);
1831                 e_info(hw, "eeprom testing starting\n");
1832                 if (ixgbe_eeprom_test(adapter, &data[1]))
1833                         eth_test->flags |= ETH_TEST_FL_FAILED;
1834
1835                 ixgbe_reset(adapter);
1836                 e_info(hw, "interrupt testing starting\n");
1837                 if (ixgbe_intr_test(adapter, &data[2]))
1838                         eth_test->flags |= ETH_TEST_FL_FAILED;
1839
1840                 /* If SRIOV or VMDq is enabled then skip MAC
1841                  * loopback diagnostic. */
1842                 if (adapter->flags & (IXGBE_FLAG_SRIOV_ENABLED |
1843                                       IXGBE_FLAG_VMDQ_ENABLED)) {
1844                         e_info(hw, "Skip MAC loopback diagnostic in VT "
1845                                "mode\n");
1846                         data[3] = 0;
1847                         goto skip_loopback;
1848                 }
1849
1850                 ixgbe_reset(adapter);
1851                 e_info(hw, "loopback testing starting\n");
1852                 if (ixgbe_loopback_test(adapter, &data[3]))
1853                         eth_test->flags |= ETH_TEST_FL_FAILED;
1854
1855 skip_loopback:
1856                 ixgbe_reset(adapter);
1857
1858                 clear_bit(__IXGBE_TESTING, &adapter->state);
1859                 if (if_running)
1860                         dev_open(netdev);
1861         } else {
1862                 e_info(hw, "online testing starting\n");
1863                 /* Online tests */
1864                 if (ixgbe_link_test(adapter, &data[4]))
1865                         eth_test->flags |= ETH_TEST_FL_FAILED;
1866
1867                 /* Online tests aren't run; pass by default */
1868                 data[0] = 0;
1869                 data[1] = 0;
1870                 data[2] = 0;
1871                 data[3] = 0;
1872
1873                 clear_bit(__IXGBE_TESTING, &adapter->state);
1874         }
1875 skip_ol_tests:
1876         msleep_interruptible(4 * 1000);
1877 }
1878
1879 static int ixgbe_wol_exclusion(struct ixgbe_adapter *adapter,
1880                                struct ethtool_wolinfo *wol)
1881 {
1882         struct ixgbe_hw *hw = &adapter->hw;
1883         int retval = 1;
1884
1885         /* WOL not supported except for the following */
1886         switch(hw->device_id) {
1887         case IXGBE_DEV_ID_82599_SFP:
1888                 /* Only this subdevice supports WOL */
1889                 if (hw->subsystem_device_id != IXGBE_SUBDEV_ID_82599_SFP) {
1890                         wol->supported = 0;
1891                         break;
1892                 }
1893                 retval = 0;
1894                 break;
1895         case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
1896                 /* All except this subdevice support WOL */
1897                 if (hw->subsystem_device_id ==
1898                     IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ) {
1899                         wol->supported = 0;
1900                         break;
1901                 }
1902                 retval = 0;
1903                 break;
1904         case IXGBE_DEV_ID_82599_KX4:
1905                 retval = 0;
1906                 break;
1907         default:
1908                 wol->supported = 0;
1909         }
1910
1911         return retval;
1912 }
1913
1914 static void ixgbe_get_wol(struct net_device *netdev,
1915                           struct ethtool_wolinfo *wol)
1916 {
1917         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1918
1919         wol->supported = WAKE_UCAST | WAKE_MCAST |
1920                          WAKE_BCAST | WAKE_MAGIC;
1921         wol->wolopts = 0;
1922
1923         if (ixgbe_wol_exclusion(adapter, wol) ||
1924             !device_can_wakeup(&adapter->pdev->dev))
1925                 return;
1926
1927         if (adapter->wol & IXGBE_WUFC_EX)
1928                 wol->wolopts |= WAKE_UCAST;
1929         if (adapter->wol & IXGBE_WUFC_MC)
1930                 wol->wolopts |= WAKE_MCAST;
1931         if (adapter->wol & IXGBE_WUFC_BC)
1932                 wol->wolopts |= WAKE_BCAST;
1933         if (adapter->wol & IXGBE_WUFC_MAG)
1934                 wol->wolopts |= WAKE_MAGIC;
1935 }
1936
1937 static int ixgbe_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1938 {
1939         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1940
1941         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
1942                 return -EOPNOTSUPP;
1943
1944         if (ixgbe_wol_exclusion(adapter, wol))
1945                 return wol->wolopts ? -EOPNOTSUPP : 0;
1946
1947         adapter->wol = 0;
1948
1949         if (wol->wolopts & WAKE_UCAST)
1950                 adapter->wol |= IXGBE_WUFC_EX;
1951         if (wol->wolopts & WAKE_MCAST)
1952                 adapter->wol |= IXGBE_WUFC_MC;
1953         if (wol->wolopts & WAKE_BCAST)
1954                 adapter->wol |= IXGBE_WUFC_BC;
1955         if (wol->wolopts & WAKE_MAGIC)
1956                 adapter->wol |= IXGBE_WUFC_MAG;
1957
1958         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
1959
1960         return 0;
1961 }
1962
1963 static int ixgbe_nway_reset(struct net_device *netdev)
1964 {
1965         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1966
1967         if (netif_running(netdev))
1968                 ixgbe_reinit_locked(adapter);
1969
1970         return 0;
1971 }
1972
1973 static int ixgbe_phys_id(struct net_device *netdev, u32 data)
1974 {
1975         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1976         struct ixgbe_hw *hw = &adapter->hw;
1977         u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
1978         u32 i;
1979
1980         if (!data || data > 300)
1981                 data = 300;
1982
1983         for (i = 0; i < (data * 1000); i += 400) {
1984                 hw->mac.ops.led_on(hw, IXGBE_LED_ON);
1985                 msleep_interruptible(200);
1986                 hw->mac.ops.led_off(hw, IXGBE_LED_ON);
1987                 msleep_interruptible(200);
1988         }
1989
1990         /* Restore LED settings */
1991         IXGBE_WRITE_REG(&adapter->hw, IXGBE_LEDCTL, led_reg);
1992
1993         return 0;
1994 }
1995
1996 static int ixgbe_get_coalesce(struct net_device *netdev,
1997                               struct ethtool_coalesce *ec)
1998 {
1999         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2000
2001         ec->tx_max_coalesced_frames_irq = adapter->tx_ring[0]->work_limit;
2002
2003         /* only valid if in constant ITR mode */
2004         switch (adapter->rx_itr_setting) {
2005         case 0:
2006                 /* throttling disabled */
2007                 ec->rx_coalesce_usecs = 0;
2008                 break;
2009         case 1:
2010                 /* dynamic ITR mode */
2011                 ec->rx_coalesce_usecs = 1;
2012                 break;
2013         default:
2014                 /* fixed interrupt rate mode */
2015                 ec->rx_coalesce_usecs = 1000000/adapter->rx_eitr_param;
2016                 break;
2017         }
2018
2019         /* if in mixed tx/rx queues per vector mode, report only rx settings */
2020         if (adapter->q_vector[0]->txr_count && adapter->q_vector[0]->rxr_count)
2021                 return 0;
2022
2023         /* only valid if in constant ITR mode */
2024         switch (adapter->tx_itr_setting) {
2025         case 0:
2026                 /* throttling disabled */
2027                 ec->tx_coalesce_usecs = 0;
2028                 break;
2029         case 1:
2030                 /* dynamic ITR mode */
2031                 ec->tx_coalesce_usecs = 1;
2032                 break;
2033         default:
2034                 ec->tx_coalesce_usecs = 1000000/adapter->tx_eitr_param;
2035                 break;
2036         }
2037
2038         return 0;
2039 }
2040
2041 /*
2042  * this function must be called before setting the new value of
2043  * rx_itr_setting
2044  */
2045 static bool ixgbe_update_rsc(struct ixgbe_adapter *adapter,
2046                              struct ethtool_coalesce *ec)
2047 {
2048         struct net_device *netdev = adapter->netdev;
2049
2050         if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE))
2051                 return false;
2052
2053         /* if interrupt rate is too high then disable RSC */
2054         if (ec->rx_coalesce_usecs != 1 &&
2055             ec->rx_coalesce_usecs <= 1000000/IXGBE_MAX_RSC_INT_RATE) {
2056                 if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
2057                         e_info(probe, "rx-usecs set too low, "
2058                                       "disabling RSC\n");
2059                         adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED;
2060                         return true;
2061                 }
2062         } else {
2063                 /* check the feature flag value and enable RSC if necessary */
2064                 if ((netdev->features & NETIF_F_LRO) &&
2065                     !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) {
2066                         e_info(probe, "rx-usecs set to %d, "
2067                                       "re-enabling RSC\n",
2068                                ec->rx_coalesce_usecs);
2069                         adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
2070                         return true;
2071                 }
2072         }
2073         return false;
2074 }
2075
2076 static int ixgbe_set_coalesce(struct net_device *netdev,
2077                               struct ethtool_coalesce *ec)
2078 {
2079         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2080         struct ixgbe_q_vector *q_vector;
2081         int i;
2082         bool need_reset = false;
2083
2084         /* don't accept tx specific changes if we've got mixed RxTx vectors */
2085         if (adapter->q_vector[0]->txr_count && adapter->q_vector[0]->rxr_count
2086            && ec->tx_coalesce_usecs)
2087                 return -EINVAL;
2088
2089         if (ec->tx_max_coalesced_frames_irq)
2090                 adapter->tx_ring[0]->work_limit = ec->tx_max_coalesced_frames_irq;
2091
2092         if (ec->rx_coalesce_usecs > 1) {
2093                 /* check the limits */
2094                 if ((1000000/ec->rx_coalesce_usecs > IXGBE_MAX_INT_RATE) ||
2095                     (1000000/ec->rx_coalesce_usecs < IXGBE_MIN_INT_RATE))
2096                         return -EINVAL;
2097
2098                 /* check the old value and enable RSC if necessary */
2099                 need_reset = ixgbe_update_rsc(adapter, ec);
2100
2101                 /* store the value in ints/second */
2102                 adapter->rx_eitr_param = 1000000/ec->rx_coalesce_usecs;
2103
2104                 /* static value of interrupt rate */
2105                 adapter->rx_itr_setting = adapter->rx_eitr_param;
2106                 /* clear the lower bit as its used for dynamic state */
2107                 adapter->rx_itr_setting &= ~1;
2108         } else if (ec->rx_coalesce_usecs == 1) {
2109                 /* check the old value and enable RSC if necessary */
2110                 need_reset = ixgbe_update_rsc(adapter, ec);
2111
2112                 /* 1 means dynamic mode */
2113                 adapter->rx_eitr_param = 20000;
2114                 adapter->rx_itr_setting = 1;
2115         } else {
2116                 /* check the old value and enable RSC if necessary */
2117                 need_reset = ixgbe_update_rsc(adapter, ec);
2118                 /*
2119                  * any other value means disable eitr, which is best
2120                  * served by setting the interrupt rate very high
2121                  */
2122                 adapter->rx_eitr_param = IXGBE_MAX_INT_RATE;
2123                 adapter->rx_itr_setting = 0;
2124         }
2125
2126         if (ec->tx_coalesce_usecs > 1) {
2127                 /*
2128                  * don't have to worry about max_int as above because
2129                  * tx vectors don't do hardware RSC (an rx function)
2130                  */
2131                 /* check the limits */
2132                 if ((1000000/ec->tx_coalesce_usecs > IXGBE_MAX_INT_RATE) ||
2133                     (1000000/ec->tx_coalesce_usecs < IXGBE_MIN_INT_RATE))
2134                         return -EINVAL;
2135
2136                 /* store the value in ints/second */
2137                 adapter->tx_eitr_param = 1000000/ec->tx_coalesce_usecs;
2138
2139                 /* static value of interrupt rate */
2140                 adapter->tx_itr_setting = adapter->tx_eitr_param;
2141
2142                 /* clear the lower bit as its used for dynamic state */
2143                 adapter->tx_itr_setting &= ~1;
2144         } else if (ec->tx_coalesce_usecs == 1) {
2145                 /* 1 means dynamic mode */
2146                 adapter->tx_eitr_param = 10000;
2147                 adapter->tx_itr_setting = 1;
2148         } else {
2149                 adapter->tx_eitr_param = IXGBE_MAX_INT_RATE;
2150                 adapter->tx_itr_setting = 0;
2151         }
2152
2153         /* MSI/MSIx Interrupt Mode */
2154         if (adapter->flags &
2155             (IXGBE_FLAG_MSIX_ENABLED | IXGBE_FLAG_MSI_ENABLED)) {
2156                 int num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
2157                 for (i = 0; i < num_vectors; i++) {
2158                         q_vector = adapter->q_vector[i];
2159                         if (q_vector->txr_count && !q_vector->rxr_count)
2160                                 /* tx only */
2161                                 q_vector->eitr = adapter->tx_eitr_param;
2162                         else
2163                                 /* rx only or mixed */
2164                                 q_vector->eitr = adapter->rx_eitr_param;
2165                         ixgbe_write_eitr(q_vector);
2166                 }
2167         /* Legacy Interrupt Mode */
2168         } else {
2169                 q_vector = adapter->q_vector[0];
2170                 q_vector->eitr = adapter->rx_eitr_param;
2171                 ixgbe_write_eitr(q_vector);
2172         }
2173
2174         /*
2175          * do reset here at the end to make sure EITR==0 case is handled
2176          * correctly w.r.t stopping tx, and changing TXDCTL.WTHRESH settings
2177          * also locks in RSC enable/disable which requires reset
2178          */
2179         if (need_reset) {
2180                 if (netif_running(netdev))
2181                         ixgbe_reinit_locked(adapter);
2182                 else
2183                         ixgbe_reset(adapter);
2184         }
2185
2186         return 0;
2187 }
2188
2189 static int ixgbe_set_flags(struct net_device *netdev, u32 data)
2190 {
2191         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2192         bool need_reset = false;
2193         int rc;
2194
2195 #ifdef CONFIG_IXGBE_DCB
2196         if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) &&
2197             !(data & ETH_FLAG_RXVLAN))
2198                 return -EINVAL;
2199 #endif
2200
2201         need_reset = (data & ETH_FLAG_RXVLAN) !=
2202                      (netdev->features & NETIF_F_HW_VLAN_RX);
2203
2204         rc = ethtool_op_set_flags(netdev, data, ETH_FLAG_LRO | ETH_FLAG_NTUPLE |
2205                                         ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN);
2206         if (rc)
2207                 return rc;
2208
2209         /* if state changes we need to update adapter->flags and reset */
2210         if ((adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) &&
2211             (!!(data & ETH_FLAG_LRO) !=
2212              !!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED))) {
2213                 if ((data & ETH_FLAG_LRO) &&
2214                     (!adapter->rx_itr_setting ||
2215                      (adapter->rx_itr_setting > IXGBE_MAX_RSC_INT_RATE))) {
2216                         e_info(probe, "rx-usecs set too low, "
2217                                       "not enabling RSC.\n");
2218                 } else {
2219                         adapter->flags2 ^= IXGBE_FLAG2_RSC_ENABLED;
2220                         switch (adapter->hw.mac.type) {
2221                         case ixgbe_mac_82599EB:
2222                                 need_reset = true;
2223                                 break;
2224                         case ixgbe_mac_X540: {
2225                                 int i;
2226                                 for (i = 0; i < adapter->num_rx_queues; i++) {
2227                                         struct ixgbe_ring *ring =
2228                                                           adapter->rx_ring[i];
2229                                         if (adapter->flags2 &
2230                                             IXGBE_FLAG2_RSC_ENABLED) {
2231                                                 ixgbe_configure_rscctl(adapter,
2232                                                                        ring);
2233                                         } else {
2234                                                 ixgbe_clear_rscctl(adapter,
2235                                                                    ring);
2236                                         }
2237                                 }
2238                         }
2239                                 break;
2240                         default:
2241                                 break;
2242                         }
2243                 }
2244         }
2245
2246         /*
2247          * Check if Flow Director n-tuple support was enabled or disabled.  If
2248          * the state changed, we need to reset.
2249          */
2250         if ((adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) &&
2251             (!(data & ETH_FLAG_NTUPLE))) {
2252                 /* turn off Flow Director perfect, set hash and reset */
2253                 adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
2254                 adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
2255                 need_reset = true;
2256         } else if ((!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) &&
2257                    (data & ETH_FLAG_NTUPLE)) {
2258                 /* turn off Flow Director hash, enable perfect and reset */
2259                 adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
2260                 adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
2261                 need_reset = true;
2262         } else {
2263                 /* no state change */
2264         }
2265
2266         if (need_reset) {
2267                 if (netif_running(netdev))
2268                         ixgbe_reinit_locked(adapter);
2269                 else
2270                         ixgbe_reset(adapter);
2271         }
2272
2273         return 0;
2274 }
2275
2276 static int ixgbe_set_rx_ntuple(struct net_device *dev,
2277                                struct ethtool_rx_ntuple *cmd)
2278 {
2279         struct ixgbe_adapter *adapter = netdev_priv(dev);
2280         struct ethtool_rx_ntuple_flow_spec fs = cmd->fs;
2281         union ixgbe_atr_input input_struct;
2282         struct ixgbe_atr_input_masks input_masks;
2283         int target_queue;
2284
2285         if (adapter->hw.mac.type == ixgbe_mac_82598EB)
2286                 return -EOPNOTSUPP;
2287
2288         /*
2289          * Don't allow programming if the action is a queue greater than
2290          * the number of online Tx queues.
2291          */
2292         if ((fs.action >= adapter->num_tx_queues) ||
2293             (fs.action < ETHTOOL_RXNTUPLE_ACTION_DROP))
2294                 return -EINVAL;
2295
2296         memset(&input_struct, 0, sizeof(union ixgbe_atr_input));
2297         memset(&input_masks, 0, sizeof(struct ixgbe_atr_input_masks));
2298
2299         input_masks.src_ip_mask = fs.m_u.tcp_ip4_spec.ip4src;
2300         input_masks.dst_ip_mask = fs.m_u.tcp_ip4_spec.ip4dst;
2301         input_masks.src_port_mask = fs.m_u.tcp_ip4_spec.psrc;
2302         input_masks.dst_port_mask = fs.m_u.tcp_ip4_spec.pdst;
2303         input_masks.vlan_id_mask = fs.vlan_tag_mask;
2304         /* only use the lowest 2 bytes for flex bytes */
2305         input_masks.data_mask = (fs.data_mask & 0xffff);
2306
2307         switch (fs.flow_type) {
2308         case TCP_V4_FLOW:
2309                 ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_TCP);
2310                 break;
2311         case UDP_V4_FLOW:
2312                 ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_UDP);
2313                 break;
2314         case SCTP_V4_FLOW:
2315                 ixgbe_atr_set_l4type_82599(&input_struct, IXGBE_ATR_L4TYPE_SCTP);
2316                 break;
2317         default:
2318                 return -1;
2319         }
2320
2321         /* Mask bits from the inputs based on user-supplied mask */
2322         ixgbe_atr_set_src_ipv4_82599(&input_struct,
2323                     (fs.h_u.tcp_ip4_spec.ip4src & ~fs.m_u.tcp_ip4_spec.ip4src));
2324         ixgbe_atr_set_dst_ipv4_82599(&input_struct,
2325                     (fs.h_u.tcp_ip4_spec.ip4dst & ~fs.m_u.tcp_ip4_spec.ip4dst));
2326         /* 82599 expects these to be byte-swapped for perfect filtering */
2327         ixgbe_atr_set_src_port_82599(&input_struct,
2328                ((ntohs(fs.h_u.tcp_ip4_spec.psrc)) & ~fs.m_u.tcp_ip4_spec.psrc));
2329         ixgbe_atr_set_dst_port_82599(&input_struct,
2330                ((ntohs(fs.h_u.tcp_ip4_spec.pdst)) & ~fs.m_u.tcp_ip4_spec.pdst));
2331
2332         /* VLAN and Flex bytes are either completely masked or not */
2333         if (!fs.vlan_tag_mask)
2334                 ixgbe_atr_set_vlan_id_82599(&input_struct, fs.vlan_tag);
2335
2336         if (!input_masks.data_mask)
2337                 /* make sure we only use the first 2 bytes of user data */
2338                 ixgbe_atr_set_flex_byte_82599(&input_struct,
2339                                               (fs.data & 0xffff));
2340
2341         /* determine if we need to drop or route the packet */
2342         if (fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
2343                 target_queue = MAX_RX_QUEUES - 1;
2344         else
2345                 target_queue = fs.action;
2346
2347         spin_lock(&adapter->fdir_perfect_lock);
2348         ixgbe_fdir_add_perfect_filter_82599(&adapter->hw, &input_struct,
2349                                             &input_masks, 0, target_queue);
2350         spin_unlock(&adapter->fdir_perfect_lock);
2351
2352         return 0;
2353 }
2354
2355 static const struct ethtool_ops ixgbe_ethtool_ops = {
2356         .get_settings           = ixgbe_get_settings,
2357         .set_settings           = ixgbe_set_settings,
2358         .get_drvinfo            = ixgbe_get_drvinfo,
2359         .get_regs_len           = ixgbe_get_regs_len,
2360         .get_regs               = ixgbe_get_regs,
2361         .get_wol                = ixgbe_get_wol,
2362         .set_wol                = ixgbe_set_wol,
2363         .nway_reset             = ixgbe_nway_reset,
2364         .get_link               = ethtool_op_get_link,
2365         .get_eeprom_len         = ixgbe_get_eeprom_len,
2366         .get_eeprom             = ixgbe_get_eeprom,
2367         .get_ringparam          = ixgbe_get_ringparam,
2368         .set_ringparam          = ixgbe_set_ringparam,
2369         .get_pauseparam         = ixgbe_get_pauseparam,
2370         .set_pauseparam         = ixgbe_set_pauseparam,
2371         .get_rx_csum            = ixgbe_get_rx_csum,
2372         .set_rx_csum            = ixgbe_set_rx_csum,
2373         .get_tx_csum            = ixgbe_get_tx_csum,
2374         .set_tx_csum            = ixgbe_set_tx_csum,
2375         .get_sg                 = ethtool_op_get_sg,
2376         .set_sg                 = ethtool_op_set_sg,
2377         .get_msglevel           = ixgbe_get_msglevel,
2378         .set_msglevel           = ixgbe_set_msglevel,
2379         .get_tso                = ethtool_op_get_tso,
2380         .set_tso                = ixgbe_set_tso,
2381         .self_test              = ixgbe_diag_test,
2382         .get_strings            = ixgbe_get_strings,
2383         .phys_id                = ixgbe_phys_id,
2384         .get_sset_count         = ixgbe_get_sset_count,
2385         .get_ethtool_stats      = ixgbe_get_ethtool_stats,
2386         .get_coalesce           = ixgbe_get_coalesce,
2387         .set_coalesce           = ixgbe_set_coalesce,
2388         .get_flags              = ethtool_op_get_flags,
2389         .set_flags              = ixgbe_set_flags,
2390         .set_rx_ntuple          = ixgbe_set_rx_ntuple,
2391 };
2392
2393 void ixgbe_set_ethtool_ops(struct net_device *netdev)
2394 {
2395         SET_ETHTOOL_OPS(netdev, &ixgbe_ethtool_ops);
2396 }