drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2016 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   Linux NICS <linux.nics@intel.com>
  24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27 *******************************************************************************/
  28
  29 /* ethtool support for ixgbe */
  30
  31 #include <linux/interrupt.h>
  32 #include <linux/types.h>
  33 #include <linux/module.h>
  34 #include <linux/slab.h>
  35 #include <linux/pci.h>
  36 #include <linux/netdevice.h>
  37 #include <linux/ethtool.h>
  38 #include <linux/vmalloc.h>
  39 #include <linux/highmem.h>
  40 #include <linux/uaccess.h>
  41
  42 #include "ixgbe.h"
  43 #include "ixgbe_phy.h"
  44
  45
  46 #define IXGBE_ALL_RAR_ENTRIES 16
  47
  48 enum {NETDEV_STATS, IXGBE_STATS};
  49
  50 struct ixgbe_stats {
  51         char stat_string[ETH_GSTRING_LEN];
  52         int type;
  53         int sizeof_stat;
  54         int stat_offset;
  55 };
  56
  57 #define IXGBE_STAT(m)           IXGBE_STATS, \
  58                                 sizeof(((struct ixgbe_adapter *)0)->m), \
  59                                 offsetof(struct ixgbe_adapter, m)
  60 #define IXGBE_NETDEV_STAT(m)    NETDEV_STATS, \
  61                                 sizeof(((struct rtnl_link_stats64 *)0)->m), \
  62                                 offsetof(struct rtnl_link_stats64, m)
  63
  64 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
  65         {"rx_packets", IXGBE_NETDEV_STAT(rx_packets)},
  66         {"tx_packets", IXGBE_NETDEV_STAT(tx_packets)},
  67         {"rx_bytes", IXGBE_NETDEV_STAT(rx_bytes)},
  68         {"tx_bytes", IXGBE_NETDEV_STAT(tx_bytes)},
  69         {"rx_pkts_nic", IXGBE_STAT(stats.gprc)},
  70         {"tx_pkts_nic", IXGBE_STAT(stats.gptc)},
  71         {"rx_bytes_nic", IXGBE_STAT(stats.gorc)},
  72         {"tx_bytes_nic", IXGBE_STAT(stats.gotc)},
  73         {"lsc_int", IXGBE_STAT(lsc_int)},
  74         {"tx_busy", IXGBE_STAT(tx_busy)},
  75         {"non_eop_descs", IXGBE_STAT(non_eop_descs)},
  76         {"rx_errors", IXGBE_NETDEV_STAT(rx_errors)},
  77         {"tx_errors", IXGBE_NETDEV_STAT(tx_errors)},
  78         {"rx_dropped", IXGBE_NETDEV_STAT(rx_dropped)},
  79         {"tx_dropped", IXGBE_NETDEV_STAT(tx_dropped)},
  80         {"multicast", IXGBE_NETDEV_STAT(multicast)},
  81         {"broadcast", IXGBE_STAT(stats.bprc)},
  82         {"rx_no_buffer_count", IXGBE_STAT(stats.rnbc[0]) },
  83         {"collisions", IXGBE_NETDEV_STAT(collisions)},
  84         {"rx_over_errors", IXGBE_NETDEV_STAT(rx_over_errors)},
  85         {"rx_crc_errors", IXGBE_NETDEV_STAT(rx_crc_errors)},
  86         {"rx_frame_errors", IXGBE_NETDEV_STAT(rx_frame_errors)},
  87         {"hw_rsc_aggregated", IXGBE_STAT(rsc_total_count)},
  88         {"hw_rsc_flushed", IXGBE_STAT(rsc_total_flush)},
  89         {"fdir_match", IXGBE_STAT(stats.fdirmatch)},
  90         {"fdir_miss", IXGBE_STAT(stats.fdirmiss)},
  91         {"fdir_overflow", IXGBE_STAT(fdir_overflow)},
  92         {"rx_fifo_errors", IXGBE_NETDEV_STAT(rx_fifo_errors)},
  93         {"rx_missed_errors", IXGBE_NETDEV_STAT(rx_missed_errors)},
  94         {"tx_aborted_errors", IXGBE_NETDEV_STAT(tx_aborted_errors)},
  95         {"tx_carrier_errors", IXGBE_NETDEV_STAT(tx_carrier_errors)},
  96         {"tx_fifo_errors", IXGBE_NETDEV_STAT(tx_fifo_errors)},
  97         {"tx_heartbeat_errors", IXGBE_NETDEV_STAT(tx_heartbeat_errors)},
  98         {"tx_timeout_count", IXGBE_STAT(tx_timeout_count)},
  99         {"tx_restart_queue", IXGBE_STAT(restart_queue)},
 100         {"rx_long_length_errors", IXGBE_STAT(stats.roc)},
 101         {"rx_short_length_errors", IXGBE_STAT(stats.ruc)},
 102         {"tx_flow_control_xon", IXGBE_STAT(stats.lxontxc)},
 103         {"rx_flow_control_xon", IXGBE_STAT(stats.lxonrxc)},
 104         {"tx_flow_control_xoff", IXGBE_STAT(stats.lxofftxc)},
 105         {"rx_flow_control_xoff", IXGBE_STAT(stats.lxoffrxc)},
 106         {"rx_csum_offload_errors", IXGBE_STAT(hw_csum_rx_error)},
 107         {"alloc_rx_page_failed", IXGBE_STAT(alloc_rx_page_failed)},
 108         {"alloc_rx_buff_failed", IXGBE_STAT(alloc_rx_buff_failed)},
 109         {"rx_no_dma_resources", IXGBE_STAT(hw_rx_no_dma_resources)},
 110         {"os2bmc_rx_by_bmc", IXGBE_STAT(stats.o2bgptc)},
 111         {"os2bmc_tx_by_bmc", IXGBE_STAT(stats.b2ospc)},
 112         {"os2bmc_tx_by_host", IXGBE_STAT(stats.o2bspc)},
 113         {"os2bmc_rx_by_host", IXGBE_STAT(stats.b2ogprc)},
 114         {"tx_hwtstamp_timeouts", IXGBE_STAT(tx_hwtstamp_timeouts)},
 115         {"tx_hwtstamp_skipped", IXGBE_STAT(tx_hwtstamp_skipped)},
 116         {"rx_hwtstamp_cleared", IXGBE_STAT(rx_hwtstamp_cleared)},
 117 #ifdef IXGBE_FCOE
 118         {"fcoe_bad_fccrc", IXGBE_STAT(stats.fccrc)},
 119         {"rx_fcoe_dropped", IXGBE_STAT(stats.fcoerpdc)},
 120         {"rx_fcoe_packets", IXGBE_STAT(stats.fcoeprc)},
 121         {"rx_fcoe_dwords", IXGBE_STAT(stats.fcoedwrc)},
 122         {"fcoe_noddp", IXGBE_STAT(stats.fcoe_noddp)},
 123         {"fcoe_noddp_ext_buff", IXGBE_STAT(stats.fcoe_noddp_ext_buff)},
 124         {"tx_fcoe_packets", IXGBE_STAT(stats.fcoeptc)},
 125         {"tx_fcoe_dwords", IXGBE_STAT(stats.fcoedwtc)},
 126 #endif /* IXGBE_FCOE */
 127 };
 128
 129 /* ixgbe allocates num_tx_queues and num_rx_queues symmetrically so
 130  * we set the num_rx_queues to evaluate to num_tx_queues. This is
 131  * used because we do not have a good way to get the max number of
 132  * rx queues with CONFIG_RPS disabled.
 133  */
 134 #define IXGBE_NUM_RX_QUEUES netdev->num_tx_queues
 135
 136 #define IXGBE_QUEUE_STATS_LEN ( \
 137         (netdev->num_tx_queues + IXGBE_NUM_RX_QUEUES) * \
 138         (sizeof(struct ixgbe_queue_stats) / sizeof(u64)))
 139 #define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
 140 #define IXGBE_PB_STATS_LEN ( \
 141                         (sizeof(((struct ixgbe_adapter *)0)->stats.pxonrxc) + \
 142                          sizeof(((struct ixgbe_adapter *)0)->stats.pxontxc) + \
 143                          sizeof(((struct ixgbe_adapter *)0)->stats.pxoffrxc) + \
 144                          sizeof(((struct ixgbe_adapter *)0)->stats.pxofftxc)) \
 145                         / sizeof(u64))
 146 #define IXGBE_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + \
 147                          IXGBE_PB_STATS_LEN + \
 148                          IXGBE_QUEUE_STATS_LEN)
 149
 150 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
 151         "Register test  (offline)", "Eeprom test    (offline)",
 152         "Interrupt test (offline)", "Loopback test  (offline)",
 153         "Link test   (on/offline)"
 154 };
 155 #define IXGBE_TEST_LEN sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN
 156
 157 static const char ixgbe_priv_flags_strings[][ETH_GSTRING_LEN] = {
 158 #define IXGBE_PRIV_FLAGS_LEGACY_RX      BIT(0)
 159         "legacy-rx",
 160 };
 161
 162 #define IXGBE_PRIV_FLAGS_STR_LEN ARRAY_SIZE(ixgbe_priv_flags_strings)
 163
 164 /* currently supported speeds for 10G */
 165 #define ADVRTSD_MSK_10G (SUPPORTED_10000baseT_Full | \
 166                          SUPPORTED_10000baseKX4_Full | \
 167                          SUPPORTED_10000baseKR_Full)
 168
 169 #define ixgbe_isbackplane(type) ((type) == ixgbe_media_type_backplane)
 170
 171 static u32 ixgbe_get_supported_10gtypes(struct ixgbe_hw *hw)
 172 {
 173         if (!ixgbe_isbackplane(hw->phy.media_type))
 174                 return SUPPORTED_10000baseT_Full;
 175
 176         switch (hw->device_id) {
 177         case IXGBE_DEV_ID_82598:
 178         case IXGBE_DEV_ID_82599_KX4:
 179         case IXGBE_DEV_ID_82599_KX4_MEZZ:
 180         case IXGBE_DEV_ID_X550EM_X_KX4:
 181                 return SUPPORTED_10000baseKX4_Full;
 182         case IXGBE_DEV_ID_82598_BX:
 183         case IXGBE_DEV_ID_82599_KR:
 184         case IXGBE_DEV_ID_X550EM_X_KR:
 185         case IXGBE_DEV_ID_X550EM_X_XFI:
 186                 return SUPPORTED_10000baseKR_Full;
 187         default:
 188                 return SUPPORTED_10000baseKX4_Full |
 189                        SUPPORTED_10000baseKR_Full;
 190         }
 191 }
 192
 193 static int ixgbe_get_link_ksettings(struct net_device *netdev,
 194                                     struct ethtool_link_ksettings *cmd)
 195 {
 196         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 197         struct ixgbe_hw *hw = &adapter->hw;
 198         ixgbe_link_speed supported_link;
 199         bool autoneg = false;
 200         u32 supported, advertising;
 201
 202         ethtool_convert_link_mode_to_legacy_u32(&supported,
 203                                                 cmd->link_modes.supported);
 204
 205         hw->mac.ops.get_link_capabilities(hw, &supported_link, &autoneg);
 206
 207         /* set the supported link speeds */
 208         if (supported_link & IXGBE_LINK_SPEED_10GB_FULL)
 209                 supported |= ixgbe_get_supported_10gtypes(hw);
 210         if (supported_link & IXGBE_LINK_SPEED_1GB_FULL)
 211                 supported |= (ixgbe_isbackplane(hw->phy.media_type)) ?
 212                                    SUPPORTED_1000baseKX_Full :
 213                                    SUPPORTED_1000baseT_Full;
 214         if (supported_link & IXGBE_LINK_SPEED_100_FULL)
 215                 supported |= SUPPORTED_100baseT_Full;
 216         if (supported_link & IXGBE_LINK_SPEED_10_FULL)
 217                 supported |= SUPPORTED_10baseT_Full;
 218
 219         /* default advertised speed if phy.autoneg_advertised isn't set */
 220         advertising = supported;
 221         /* set the advertised speeds */
 222         if (hw->phy.autoneg_advertised) {
 223                 advertising = 0;
 224                 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10_FULL)
 225                         advertising |= ADVERTISED_10baseT_Full;
 226                 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_100_FULL)
 227                         advertising |= ADVERTISED_100baseT_Full;
 228                 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10GB_FULL)
 229                         advertising |= supported & ADVRTSD_MSK_10G;
 230                 if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_1GB_FULL) {
 231                         if (supported & SUPPORTED_1000baseKX_Full)
 232                                 advertising |= ADVERTISED_1000baseKX_Full;
 233                         else
 234                                 advertising |= ADVERTISED_1000baseT_Full;
 235                 }
 236         } else {
 237                 if (hw->phy.multispeed_fiber && !autoneg) {
 238                         if (supported_link & IXGBE_LINK_SPEED_10GB_FULL)
 239                                 advertising = ADVERTISED_10000baseT_Full;
 240                 }
 241         }
 242
 243         if (autoneg) {
 244                 supported |= SUPPORTED_Autoneg;
 245                 advertising |= ADVERTISED_Autoneg;
 246                 cmd->base.autoneg = AUTONEG_ENABLE;
 247         } else
 248                 cmd->base.autoneg = AUTONEG_DISABLE;
 249
 250         /* Determine the remaining settings based on the PHY type. */
 251         switch (adapter->hw.phy.type) {
 252         case ixgbe_phy_tn:
 253         case ixgbe_phy_aq:
 254         case ixgbe_phy_x550em_ext_t:
 255         case ixgbe_phy_fw:
 256         case ixgbe_phy_cu_unknown:
 257                 supported |= SUPPORTED_TP;
 258                 advertising |= ADVERTISED_TP;
 259                 cmd->base.port = PORT_TP;
 260                 break;
 261         case ixgbe_phy_qt:
 262                 supported |= SUPPORTED_FIBRE;
 263                 advertising |= ADVERTISED_FIBRE;
 264                 cmd->base.port = PORT_FIBRE;
 265                 break;
 266         case ixgbe_phy_nl:
 267         case ixgbe_phy_sfp_passive_tyco:
 268         case ixgbe_phy_sfp_passive_unknown:
 269         case ixgbe_phy_sfp_ftl:
 270         case ixgbe_phy_sfp_avago:
 271         case ixgbe_phy_sfp_intel:
 272         case ixgbe_phy_sfp_unknown:
 273         case ixgbe_phy_qsfp_passive_unknown:
 274         case ixgbe_phy_qsfp_active_unknown:
 275         case ixgbe_phy_qsfp_intel:
 276         case ixgbe_phy_qsfp_unknown:
 277                 /* SFP+ devices, further checking needed */
 278                 switch (adapter->hw.phy.sfp_type) {
 279                 case ixgbe_sfp_type_da_cu:
 280                 case ixgbe_sfp_type_da_cu_core0:
 281                 case ixgbe_sfp_type_da_cu_core1:
 282                         supported |= SUPPORTED_FIBRE;
 283                         advertising |= ADVERTISED_FIBRE;
 284                         cmd->base.port = PORT_DA;
 285                         break;
 286                 case ixgbe_sfp_type_sr:
 287                 case ixgbe_sfp_type_lr:
 288                 case ixgbe_sfp_type_srlr_core0:
 289                 case ixgbe_sfp_type_srlr_core1:
 290                 case ixgbe_sfp_type_1g_sx_core0:
 291                 case ixgbe_sfp_type_1g_sx_core1:
 292                 case ixgbe_sfp_type_1g_lx_core0:
 293                 case ixgbe_sfp_type_1g_lx_core1:
 294                         supported |= SUPPORTED_FIBRE;
 295                         advertising |= ADVERTISED_FIBRE;
 296                         cmd->base.port = PORT_FIBRE;
 297                         break;
 298                 case ixgbe_sfp_type_not_present:
 299                         supported |= SUPPORTED_FIBRE;
 300                         advertising |= ADVERTISED_FIBRE;
 301                         cmd->base.port = PORT_NONE;
 302                         break;
 303                 case ixgbe_sfp_type_1g_cu_core0:
 304                 case ixgbe_sfp_type_1g_cu_core1:
 305                         supported |= SUPPORTED_TP;
 306                         advertising |= ADVERTISED_TP;
 307                         cmd->base.port = PORT_TP;
 308                         break;
 309                 case ixgbe_sfp_type_unknown:
 310                 default:
 311                         supported |= SUPPORTED_FIBRE;
 312                         advertising |= ADVERTISED_FIBRE;
 313                         cmd->base.port = PORT_OTHER;
 314                         break;
 315                 }
 316                 break;
 317         case ixgbe_phy_xaui:
 318                 supported |= SUPPORTED_FIBRE;
 319                 advertising |= ADVERTISED_FIBRE;
 320                 cmd->base.port = PORT_NONE;
 321                 break;
 322         case ixgbe_phy_unknown:
 323         case ixgbe_phy_generic:
 324         case ixgbe_phy_sfp_unsupported:
 325         default:
 326                 supported |= SUPPORTED_FIBRE;
 327                 advertising |= ADVERTISED_FIBRE;
 328                 cmd->base.port = PORT_OTHER;
 329                 break;
 330         }
 331
 332         /* Indicate pause support */
 333         supported |= SUPPORTED_Pause;
 334
 335         switch (hw->fc.requested_mode) {
 336         case ixgbe_fc_full:
 337                 advertising |= ADVERTISED_Pause;
 338                 break;
 339         case ixgbe_fc_rx_pause:
 340                 advertising |= ADVERTISED_Pause |
 341                                      ADVERTISED_Asym_Pause;
 342                 break;
 343         case ixgbe_fc_tx_pause:
 344                 advertising |= ADVERTISED_Asym_Pause;
 345                 break;
 346         default:
 347                 advertising &= ~(ADVERTISED_Pause |
 348                                        ADVERTISED_Asym_Pause);
 349         }
 350
 351         if (netif_carrier_ok(netdev)) {
 352                 switch (adapter->link_speed) {
 353                 case IXGBE_LINK_SPEED_10GB_FULL:
 354                         cmd->base.speed = SPEED_10000;
 355                         break;
 356                 case IXGBE_LINK_SPEED_5GB_FULL:
 357                         cmd->base.speed = SPEED_5000;
 358                         break;
 359                 case IXGBE_LINK_SPEED_2_5GB_FULL:
 360                         cmd->base.speed = SPEED_2500;
 361                         break;
 362                 case IXGBE_LINK_SPEED_1GB_FULL:
 363                         cmd->base.speed = SPEED_1000;
 364                         break;
 365                 case IXGBE_LINK_SPEED_100_FULL:
 366                         cmd->base.speed = SPEED_100;
 367                         break;
 368                 case IXGBE_LINK_SPEED_10_FULL:
 369                         cmd->base.speed = SPEED_10;
 370                         break;
 371                 default:
 372                         break;
 373                 }
 374                 cmd->base.duplex = DUPLEX_FULL;
 375         } else {
 376                 cmd->base.speed = SPEED_UNKNOWN;
 377                 cmd->base.duplex = DUPLEX_UNKNOWN;
 378         }
 379
 380         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
 381                                                 supported);
 382         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
 383                                                 advertising);
 384
 385         return 0;
 386 }
 387
 388 static int ixgbe_set_link_ksettings(struct net_device *netdev,
 389                                     const struct ethtool_link_ksettings *cmd)
 390 {
 391         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 392         struct ixgbe_hw *hw = &adapter->hw;
 393         u32 advertised, old;
 394         s32 err = 0;
 395         u32 supported, advertising;
 396
 397         ethtool_convert_link_mode_to_legacy_u32(&supported,
 398                                                 cmd->link_modes.supported);
 399         ethtool_convert_link_mode_to_legacy_u32(&advertising,
 400                                                 cmd->link_modes.advertising);
 401
 402         if ((hw->phy.media_type == ixgbe_media_type_copper) ||
 403             (hw->phy.multispeed_fiber)) {
 404                 /*
 405                  * this function does not support duplex forcing, but can
 406                  * limit the advertising of the adapter to the specified speed
 407                  */
 408                 if (advertising & ~supported)
 409                         return -EINVAL;
 410
 411                 /* only allow one speed at a time if no autoneg */
 412                 if (!cmd->base.autoneg && hw->phy.multispeed_fiber) {
 413                         if (advertising ==
 414                             (ADVERTISED_10000baseT_Full |
 415                              ADVERTISED_1000baseT_Full))
 416                                 return -EINVAL;
 417                 }
 418
 419                 old = hw->phy.autoneg_advertised;
 420                 advertised = 0;
 421                 if (advertising & ADVERTISED_10000baseT_Full)
 422                         advertised |= IXGBE_LINK_SPEED_10GB_FULL;
 423
 424                 if (advertising & ADVERTISED_1000baseT_Full)
 425                         advertised |= IXGBE_LINK_SPEED_1GB_FULL;
 426
 427                 if (advertising & ADVERTISED_100baseT_Full)
 428                         advertised |= IXGBE_LINK_SPEED_100_FULL;
 429
 430                 if (advertising & ADVERTISED_10baseT_Full)
 431                         advertised |= IXGBE_LINK_SPEED_10_FULL;
 432
 433                 if (old == advertised)
 434                         return err;
 435                 /* this sets the link speed and restarts auto-neg */
 436                 while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
 437                         usleep_range(1000, 2000);
 438
 439                 hw->mac.autotry_restart = true;
 440                 err = hw->mac.ops.setup_link(hw, advertised, true);
 441                 if (err) {
 442                         e_info(probe, "setup link failed with code %d\n", err);
 443                         hw->mac.ops.setup_link(hw, old, true);
 444                 }
 445                 clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state);
 446         } else {
 447                 /* in this case we currently only support 10Gb/FULL */
 448                 u32 speed = cmd->base.speed;
 449
 450                 if ((cmd->base.autoneg == AUTONEG_ENABLE) ||
 451                     (advertising != ADVERTISED_10000baseT_Full) ||
 452                     (speed + cmd->base.duplex != SPEED_10000 + DUPLEX_FULL))
 453                         return -EINVAL;
 454         }
 455
 456         return err;
 457 }
 458
 459 static void ixgbe_get_pauseparam(struct net_device *netdev,
 460                                  struct ethtool_pauseparam *pause)
 461 {
 462         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 463         struct ixgbe_hw *hw = &adapter->hw;
 464
 465         if (ixgbe_device_supports_autoneg_fc(hw) &&
 466             !hw->fc.disable_fc_autoneg)
 467                 pause->autoneg = 1;
 468         else
 469                 pause->autoneg = 0;
 470
 471         if (hw->fc.current_mode == ixgbe_fc_rx_pause) {
 472                 pause->rx_pause = 1;
 473         } else if (hw->fc.current_mode == ixgbe_fc_tx_pause) {
 474                 pause->tx_pause = 1;
 475         } else if (hw->fc.current_mode == ixgbe_fc_full) {
 476                 pause->rx_pause = 1;
 477                 pause->tx_pause = 1;
 478         }
 479 }
 480
 481 static int ixgbe_set_pauseparam(struct net_device *netdev,
 482                                 struct ethtool_pauseparam *pause)
 483 {
 484         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 485         struct ixgbe_hw *hw = &adapter->hw;
 486         struct ixgbe_fc_info fc = hw->fc;
 487
 488         /* 82598 does no support link flow control with DCB enabled */
 489         if ((hw->mac.type == ixgbe_mac_82598EB) &&
 490             (adapter->flags & IXGBE_FLAG_DCB_ENABLED))
 491                 return -EINVAL;
 492
 493         /* some devices do not support autoneg of link flow control */
 494         if ((pause->autoneg == AUTONEG_ENABLE) &&
 495             !ixgbe_device_supports_autoneg_fc(hw))
 496                 return -EINVAL;
 497
 498         fc.disable_fc_autoneg = (pause->autoneg != AUTONEG_ENABLE);
 499
 500         if ((pause->rx_pause && pause->tx_pause) || pause->autoneg)
 501                 fc.requested_mode = ixgbe_fc_full;
 502         else if (pause->rx_pause && !pause->tx_pause)
 503                 fc.requested_mode = ixgbe_fc_rx_pause;
 504         else if (!pause->rx_pause && pause->tx_pause)
 505                 fc.requested_mode = ixgbe_fc_tx_pause;
 506         else
 507                 fc.requested_mode = ixgbe_fc_none;
 508
 509         /* if the thing changed then we'll update and use new autoneg */
 510         if (memcmp(&fc, &hw->fc, sizeof(struct ixgbe_fc_info))) {
 511                 hw->fc = fc;
 512                 if (netif_running(netdev))
 513                         ixgbe_reinit_locked(adapter);
 514                 else
 515                         ixgbe_reset(adapter);
 516         }
 517
 518         return 0;
 519 }
 520
 521 static u32 ixgbe_get_msglevel(struct net_device *netdev)
 522 {
 523         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 524         return adapter->msg_enable;
 525 }
 526
 527 static void ixgbe_set_msglevel(struct net_device *netdev, u32 data)
 528 {
 529         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 530         adapter->msg_enable = data;
 531 }
 532
 533 static int ixgbe_get_regs_len(struct net_device *netdev)
 534 {
 535 #define IXGBE_REGS_LEN  1139
 536         return IXGBE_REGS_LEN * sizeof(u32);
 537 }
 538
 539 #define IXGBE_GET_STAT(_A_, _R_) _A_->stats._R_
 540
 541 static void ixgbe_get_regs(struct net_device *netdev,
 542                            struct ethtool_regs *regs, void *p)
 543 {
 544         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 545         struct ixgbe_hw *hw = &adapter->hw;
 546         u32 *regs_buff = p;
 547         u8 i;
 548
 549         memset(p, 0, IXGBE_REGS_LEN * sizeof(u32));
 550
 551         regs->version = hw->mac.type << 24 | hw->revision_id << 16 |
 552                         hw->device_id;
 553
 554         /* General Registers */
 555         regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_CTRL);
 556         regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_STATUS);
 557         regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
 558         regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_ESDP);
 559         regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_EODSDP);
 560         regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
 561         regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_FRTIMER);
 562         regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_TCPTIMER);
 563
 564         /* NVM Register */
 565         regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
 566         regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_EERD);
 567         regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_FLA(hw));
 568         regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_EEMNGCTL);
 569         regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_EEMNGDATA);
 570         regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_FLMNGCTL);
 571         regs_buff[14] = IXGBE_READ_REG(hw, IXGBE_FLMNGDATA);
 572         regs_buff[15] = IXGBE_READ_REG(hw, IXGBE_FLMNGCNT);
 573         regs_buff[16] = IXGBE_READ_REG(hw, IXGBE_FLOP);
 574         regs_buff[17] = IXGBE_READ_REG(hw, IXGBE_GRC(hw));
 575
 576         /* Interrupt */
 577         /* don't read EICR because it can clear interrupt causes, instead
 578          * read EICS which is a shadow but doesn't clear EICR */
 579         regs_buff[18] = IXGBE_READ_REG(hw, IXGBE_EICS);
 580         regs_buff[19] = IXGBE_READ_REG(hw, IXGBE_EICS);
 581         regs_buff[20] = IXGBE_READ_REG(hw, IXGBE_EIMS);
 582         regs_buff[21] = IXGBE_READ_REG(hw, IXGBE_EIMC);
 583         regs_buff[22] = IXGBE_READ_REG(hw, IXGBE_EIAC);
 584         regs_buff[23] = IXGBE_READ_REG(hw, IXGBE_EIAM);
 585         regs_buff[24] = IXGBE_READ_REG(hw, IXGBE_EITR(0));
 586         regs_buff[25] = IXGBE_READ_REG(hw, IXGBE_IVAR(0));
 587         regs_buff[26] = IXGBE_READ_REG(hw, IXGBE_MSIXT);
 588         regs_buff[27] = IXGBE_READ_REG(hw, IXGBE_MSIXPBA);
 589         regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_PBACL(0));
 590         regs_buff[29] = IXGBE_READ_REG(hw, IXGBE_GPIE);
 591
 592         /* Flow Control */
 593         regs_buff[30] = IXGBE_READ_REG(hw, IXGBE_PFCTOP);
 594         for (i = 0; i < 4; i++)
 595                 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_FCTTV(i));
 596         for (i = 0; i < 8; i++) {
 597                 switch (hw->mac.type) {
 598                 case ixgbe_mac_82598EB:
 599                         regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL(i));
 600                         regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH(i));
 601                         break;
 602                 case ixgbe_mac_82599EB:
 603                 case ixgbe_mac_X540:
 604                 case ixgbe_mac_X550:
 605                 case ixgbe_mac_X550EM_x:
 606                 case ixgbe_mac_x550em_a:
 607                         regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTL_82599(i));
 608                         regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_FCRTH_82599(i));
 609                         break;
 610                 default:
 611                         break;
 612                 }
 613         }
 614         regs_buff[51] = IXGBE_READ_REG(hw, IXGBE_FCRTV);
 615         regs_buff[52] = IXGBE_READ_REG(hw, IXGBE_TFCS);
 616
 617         /* Receive DMA */
 618         for (i = 0; i < 64; i++)
 619                 regs_buff[53 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i));
 620         for (i = 0; i < 64; i++)
 621                 regs_buff[117 + i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i));
 622         for (i = 0; i < 64; i++)
 623                 regs_buff[181 + i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i));
 624         for (i = 0; i < 64; i++)
 625                 regs_buff[245 + i] = IXGBE_READ_REG(hw, IXGBE_RDH(i));
 626         for (i = 0; i < 64; i++)
 627                 regs_buff[309 + i] = IXGBE_READ_REG(hw, IXGBE_RDT(i));
 628         for (i = 0; i < 64; i++)
 629                 regs_buff[373 + i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
 630         for (i = 0; i < 16; i++)
 631                 regs_buff[437 + i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i));
 632         for (i = 0; i < 16; i++)
 633                 regs_buff[453 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
 634         regs_buff[469] = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
 635         for (i = 0; i < 8; i++)
 636                 regs_buff[470 + i] = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
 637         regs_buff[478] = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
 638         regs_buff[479] = IXGBE_READ_REG(hw, IXGBE_DROPEN);
 639
 640         /* Receive */
 641         regs_buff[480] = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
 642         regs_buff[481] = IXGBE_READ_REG(hw, IXGBE_RFCTL);
 643         for (i = 0; i < 16; i++)
 644                 regs_buff[482 + i] = IXGBE_READ_REG(hw, IXGBE_RAL(i));
 645         for (i = 0; i < 16; i++)
 646                 regs_buff[498 + i] = IXGBE_READ_REG(hw, IXGBE_RAH(i));
 647         regs_buff[514] = IXGBE_READ_REG(hw, IXGBE_PSRTYPE(0));
 648         regs_buff[515] = IXGBE_READ_REG(hw, IXGBE_FCTRL);
 649         regs_buff[516] = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
 650         regs_buff[517] = IXGBE_READ_REG(hw, IXGBE_MCSTCTRL);
 651         regs_buff[518] = IXGBE_READ_REG(hw, IXGBE_MRQC);
 652         regs_buff[519] = IXGBE_READ_REG(hw, IXGBE_VMD_CTL);
 653         for (i = 0; i < 8; i++)
 654                 regs_buff[520 + i] = IXGBE_READ_REG(hw, IXGBE_IMIR(i));
 655         for (i = 0; i < 8; i++)
 656                 regs_buff[528 + i] = IXGBE_READ_REG(hw, IXGBE_IMIREXT(i));
 657         regs_buff[536] = IXGBE_READ_REG(hw, IXGBE_IMIRVP);
 658
 659         /* Transmit */
 660         for (i = 0; i < 32; i++)
 661                 regs_buff[537 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i));
 662         for (i = 0; i < 32; i++)
 663                 regs_buff[569 + i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i));
 664         for (i = 0; i < 32; i++)
 665                 regs_buff[601 + i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i));
 666         for (i = 0; i < 32; i++)
 667                 regs_buff[633 + i] = IXGBE_READ_REG(hw, IXGBE_TDH(i));
 668         for (i = 0; i < 32; i++)
 669                 regs_buff[665 + i] = IXGBE_READ_REG(hw, IXGBE_TDT(i));
 670         for (i = 0; i < 32; i++)
 671                 regs_buff[697 + i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i));
 672         for (i = 0; i < 32; i++)
 673                 regs_buff[729 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAL(i));
 674         for (i = 0; i < 32; i++)
 675                 regs_buff[761 + i] = IXGBE_READ_REG(hw, IXGBE_TDWBAH(i));
 676         regs_buff[793] = IXGBE_READ_REG(hw, IXGBE_DTXCTL);
 677         for (i = 0; i < 16; i++)
 678                 regs_buff[794 + i] = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
 679         regs_buff[810] = IXGBE_READ_REG(hw, IXGBE_TIPG);
 680         for (i = 0; i < 8; i++)
 681                 regs_buff[811 + i] = IXGBE_READ_REG(hw, IXGBE_TXPBSIZE(i));
 682         regs_buff[819] = IXGBE_READ_REG(hw, IXGBE_MNGTXMAP);
 683
 684         /* Wake Up */
 685         regs_buff[820] = IXGBE_READ_REG(hw, IXGBE_WUC);
 686         regs_buff[821] = IXGBE_READ_REG(hw, IXGBE_WUFC);
 687         regs_buff[822] = IXGBE_READ_REG(hw, IXGBE_WUS);
 688         regs_buff[823] = IXGBE_READ_REG(hw, IXGBE_IPAV);
 689         regs_buff[824] = IXGBE_READ_REG(hw, IXGBE_IP4AT);
 690         regs_buff[825] = IXGBE_READ_REG(hw, IXGBE_IP6AT);
 691         regs_buff[826] = IXGBE_READ_REG(hw, IXGBE_WUPL);
 692         regs_buff[827] = IXGBE_READ_REG(hw, IXGBE_WUPM);
 693         regs_buff[828] = IXGBE_READ_REG(hw, IXGBE_FHFT(0));
 694
 695         /* DCB */
 696         regs_buff[829] = IXGBE_READ_REG(hw, IXGBE_RMCS);   /* same as FCCFG  */
 697         regs_buff[831] = IXGBE_READ_REG(hw, IXGBE_PDPMCS); /* same as RTTPCS */
 698
 699         switch (hw->mac.type) {
 700         case ixgbe_mac_82598EB:
 701                 regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_DPMCS);
 702                 regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RUPPBMR);
 703                 for (i = 0; i < 8; i++)
 704                         regs_buff[833 + i] =
 705                                 IXGBE_READ_REG(hw, IXGBE_RT2CR(i));
 706                 for (i = 0; i < 8; i++)
 707                         regs_buff[841 + i] =
 708                                 IXGBE_READ_REG(hw, IXGBE_RT2SR(i));
 709                 for (i = 0; i < 8; i++)
 710                         regs_buff[849 + i] =
 711                                 IXGBE_READ_REG(hw, IXGBE_TDTQ2TCCR(i));
 712                 for (i = 0; i < 8; i++)
 713                         regs_buff[857 + i] =
 714                                 IXGBE_READ_REG(hw, IXGBE_TDTQ2TCSR(i));
 715                 break;
 716         case ixgbe_mac_82599EB:
 717         case ixgbe_mac_X540:
 718         case ixgbe_mac_X550:
 719         case ixgbe_mac_X550EM_x:
 720         case ixgbe_mac_x550em_a:
 721                 regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
 722                 regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RTRPCS);
 723                 for (i = 0; i < 8; i++)
 724                         regs_buff[833 + i] =
 725                                 IXGBE_READ_REG(hw, IXGBE_RTRPT4C(i));
 726                 for (i = 0; i < 8; i++)
 727                         regs_buff[841 + i] =
 728                                 IXGBE_READ_REG(hw, IXGBE_RTRPT4S(i));
 729                 for (i = 0; i < 8; i++)
 730                         regs_buff[849 + i] =
 731                                 IXGBE_READ_REG(hw, IXGBE_RTTDT2C(i));
 732                 for (i = 0; i < 8; i++)
 733                         regs_buff[857 + i] =
 734                                 IXGBE_READ_REG(hw, IXGBE_RTTDT2S(i));
 735                 break;
 736         default:
 737                 break;
 738         }
 739
 740         for (i = 0; i < 8; i++)
 741                 regs_buff[865 + i] =
 742                 IXGBE_READ_REG(hw, IXGBE_TDPT2TCCR(i)); /* same as RTTPT2C */
 743         for (i = 0; i < 8; i++)
 744                 regs_buff[873 + i] =
 745                 IXGBE_READ_REG(hw, IXGBE_TDPT2TCSR(i)); /* same as RTTPT2S */
 746
 747         /* Statistics */
 748         regs_buff[881] = IXGBE_GET_STAT(adapter, crcerrs);
 749         regs_buff[882] = IXGBE_GET_STAT(adapter, illerrc);
 750         regs_buff[883] = IXGBE_GET_STAT(adapter, errbc);
 751         regs_buff[884] = IXGBE_GET_STAT(adapter, mspdc);
 752         for (i = 0; i < 8; i++)
 753                 regs_buff[885 + i] = IXGBE_GET_STAT(adapter, mpc[i]);
 754         regs_buff[893] = IXGBE_GET_STAT(adapter, mlfc);
 755         regs_buff[894] = IXGBE_GET_STAT(adapter, mrfc);
 756         regs_buff[895] = IXGBE_GET_STAT(adapter, rlec);
 757         regs_buff[896] = IXGBE_GET_STAT(adapter, lxontxc);
 758         regs_buff[897] = IXGBE_GET_STAT(adapter, lxonrxc);
 759         regs_buff[898] = IXGBE_GET_STAT(adapter, lxofftxc);
 760         regs_buff[899] = IXGBE_GET_STAT(adapter, lxoffrxc);
 761         for (i = 0; i < 8; i++)
 762                 regs_buff[900 + i] = IXGBE_GET_STAT(adapter, pxontxc[i]);
 763         for (i = 0; i < 8; i++)
 764                 regs_buff[908 + i] = IXGBE_GET_STAT(adapter, pxonrxc[i]);
 765         for (i = 0; i < 8; i++)
 766                 regs_buff[916 + i] = IXGBE_GET_STAT(adapter, pxofftxc[i]);
 767         for (i = 0; i < 8; i++)
 768                 regs_buff[924 + i] = IXGBE_GET_STAT(adapter, pxoffrxc[i]);
 769         regs_buff[932] = IXGBE_GET_STAT(adapter, prc64);
 770         regs_buff[933] = IXGBE_GET_STAT(adapter, prc127);
 771         regs_buff[934] = IXGBE_GET_STAT(adapter, prc255);
 772         regs_buff[935] = IXGBE_GET_STAT(adapter, prc511);
 773         regs_buff[936] = IXGBE_GET_STAT(adapter, prc1023);
 774         regs_buff[937] = IXGBE_GET_STAT(adapter, prc1522);
 775         regs_buff[938] = IXGBE_GET_STAT(adapter, gprc);
 776         regs_buff[939] = IXGBE_GET_STAT(adapter, bprc);
 777         regs_buff[940] = IXGBE_GET_STAT(adapter, mprc);
 778         regs_buff[941] = IXGBE_GET_STAT(adapter, gptc);
 779         regs_buff[942] = (u32)IXGBE_GET_STAT(adapter, gorc);
 780         regs_buff[943] = (u32)(IXGBE_GET_STAT(adapter, gorc) >> 32);
 781         regs_buff[944] = (u32)IXGBE_GET_STAT(adapter, gotc);
 782         regs_buff[945] = (u32)(IXGBE_GET_STAT(adapter, gotc) >> 32);
 783         for (i = 0; i < 8; i++)
 784                 regs_buff[946 + i] = IXGBE_GET_STAT(adapter, rnbc[i]);
 785         regs_buff[954] = IXGBE_GET_STAT(adapter, ruc);
 786         regs_buff[955] = IXGBE_GET_STAT(adapter, rfc);
 787         regs_buff[956] = IXGBE_GET_STAT(adapter, roc);
 788         regs_buff[957] = IXGBE_GET_STAT(adapter, rjc);
 789         regs_buff[958] = IXGBE_GET_STAT(adapter, mngprc);
 790         regs_buff[959] = IXGBE_GET_STAT(adapter, mngpdc);
 791         regs_buff[960] = IXGBE_GET_STAT(adapter, mngptc);
 792         regs_buff[961] = (u32)IXGBE_GET_STAT(adapter, tor);
 793         regs_buff[962] = (u32)(IXGBE_GET_STAT(adapter, tor) >> 32);
 794         regs_buff[963] = IXGBE_GET_STAT(adapter, tpr);
 795         regs_buff[964] = IXGBE_GET_STAT(adapter, tpt);
 796         regs_buff[965] = IXGBE_GET_STAT(adapter, ptc64);
 797         regs_buff[966] = IXGBE_GET_STAT(adapter, ptc127);
 798         regs_buff[967] = IXGBE_GET_STAT(adapter, ptc255);
 799         regs_buff[968] = IXGBE_GET_STAT(adapter, ptc511);
 800         regs_buff[969] = IXGBE_GET_STAT(adapter, ptc1023);
 801         regs_buff[970] = IXGBE_GET_STAT(adapter, ptc1522);
 802         regs_buff[971] = IXGBE_GET_STAT(adapter, mptc);
 803         regs_buff[972] = IXGBE_GET_STAT(adapter, bptc);
 804         regs_buff[973] = IXGBE_GET_STAT(adapter, xec);
 805         for (i = 0; i < 16; i++)
 806                 regs_buff[974 + i] = IXGBE_GET_STAT(adapter, qprc[i]);
 807         for (i = 0; i < 16; i++)
 808                 regs_buff[990 + i] = IXGBE_GET_STAT(adapter, qptc[i]);
 809         for (i = 0; i < 16; i++)
 810                 regs_buff[1006 + i] = IXGBE_GET_STAT(adapter, qbrc[i]);
 811         for (i = 0; i < 16; i++)
 812                 regs_buff[1022 + i] = IXGBE_GET_STAT(adapter, qbtc[i]);
 813
 814         /* MAC */
 815         regs_buff[1038] = IXGBE_READ_REG(hw, IXGBE_PCS1GCFIG);
 816         regs_buff[1039] = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL);
 817         regs_buff[1040] = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA);
 818         regs_buff[1041] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG0);
 819         regs_buff[1042] = IXGBE_READ_REG(hw, IXGBE_PCS1GDBG1);
 820         regs_buff[1043] = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
 821         regs_buff[1044] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP);
 822         regs_buff[1045] = IXGBE_READ_REG(hw, IXGBE_PCS1GANNP);
 823         regs_buff[1046] = IXGBE_READ_REG(hw, IXGBE_PCS1GANLPNP);
 824         regs_buff[1047] = IXGBE_READ_REG(hw, IXGBE_HLREG0);
 825         regs_buff[1048] = IXGBE_READ_REG(hw, IXGBE_HLREG1);
 826         regs_buff[1049] = IXGBE_READ_REG(hw, IXGBE_PAP);
 827         regs_buff[1050] = IXGBE_READ_REG(hw, IXGBE_MACA);
 828         regs_buff[1051] = IXGBE_READ_REG(hw, IXGBE_APAE);
 829         regs_buff[1052] = IXGBE_READ_REG(hw, IXGBE_ARD);
 830         regs_buff[1053] = IXGBE_READ_REG(hw, IXGBE_AIS);
 831         regs_buff[1054] = IXGBE_READ_REG(hw, IXGBE_MSCA);
 832         regs_buff[1055] = IXGBE_READ_REG(hw, IXGBE_MSRWD);
 833         regs_buff[1056] = IXGBE_READ_REG(hw, IXGBE_MLADD);
 834         regs_buff[1057] = IXGBE_READ_REG(hw, IXGBE_MHADD);
 835         regs_buff[1058] = IXGBE_READ_REG(hw, IXGBE_TREG);
 836         regs_buff[1059] = IXGBE_READ_REG(hw, IXGBE_PCSS1);
 837         regs_buff[1060] = IXGBE_READ_REG(hw, IXGBE_PCSS2);
 838         regs_buff[1061] = IXGBE_READ_REG(hw, IXGBE_XPCSS);
 839         regs_buff[1062] = IXGBE_READ_REG(hw, IXGBE_SERDESC);
 840         regs_buff[1063] = IXGBE_READ_REG(hw, IXGBE_MACS);
 841         regs_buff[1064] = IXGBE_READ_REG(hw, IXGBE_AUTOC);
 842         regs_buff[1065] = IXGBE_READ_REG(hw, IXGBE_LINKS);
 843         regs_buff[1066] = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
 844         regs_buff[1067] = IXGBE_READ_REG(hw, IXGBE_AUTOC3);
 845         regs_buff[1068] = IXGBE_READ_REG(hw, IXGBE_ANLP1);
 846         regs_buff[1069] = IXGBE_READ_REG(hw, IXGBE_ANLP2);
 847         regs_buff[1070] = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
 848
 849         /* Diagnostic */
 850         regs_buff[1071] = IXGBE_READ_REG(hw, IXGBE_RDSTATCTL);
 851         for (i = 0; i < 8; i++)
 852                 regs_buff[1072 + i] = IXGBE_READ_REG(hw, IXGBE_RDSTAT(i));
 853         regs_buff[1080] = IXGBE_READ_REG(hw, IXGBE_RDHMPN);
 854         for (i = 0; i < 4; i++)
 855                 regs_buff[1081 + i] = IXGBE_READ_REG(hw, IXGBE_RIC_DW(i));
 856         regs_buff[1085] = IXGBE_READ_REG(hw, IXGBE_RDPROBE);
 857         regs_buff[1086] = IXGBE_READ_REG(hw, IXGBE_TDSTATCTL);
 858         for (i = 0; i < 8; i++)
 859                 regs_buff[1087 + i] = IXGBE_READ_REG(hw, IXGBE_TDSTAT(i));
 860         regs_buff[1095] = IXGBE_READ_REG(hw, IXGBE_TDHMPN);
 861         for (i = 0; i < 4; i++)
 862                 regs_buff[1096 + i] = IXGBE_READ_REG(hw, IXGBE_TIC_DW(i));
 863         regs_buff[1100] = IXGBE_READ_REG(hw, IXGBE_TDPROBE);
 864         regs_buff[1101] = IXGBE_READ_REG(hw, IXGBE_TXBUFCTRL);
 865         for (i = 0; i < 4; i++)
 866                 regs_buff[1102 + i] = IXGBE_READ_REG(hw, IXGBE_TXBUFDATA(i));
 867         regs_buff[1106] = IXGBE_READ_REG(hw, IXGBE_RXBUFCTRL);
 868         for (i = 0; i < 4; i++)
 869                 regs_buff[1107 + i] = IXGBE_READ_REG(hw, IXGBE_RXBUFDATA(i));
 870         for (i = 0; i < 8; i++)
 871                 regs_buff[1111 + i] = IXGBE_READ_REG(hw, IXGBE_PCIE_DIAG(i));
 872         regs_buff[1119] = IXGBE_READ_REG(hw, IXGBE_RFVAL);
 873         regs_buff[1120] = IXGBE_READ_REG(hw, IXGBE_MDFTC1);
 874         regs_buff[1121] = IXGBE_READ_REG(hw, IXGBE_MDFTC2);
 875         regs_buff[1122] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO1);
 876         regs_buff[1123] = IXGBE_READ_REG(hw, IXGBE_MDFTFIFO2);
 877         regs_buff[1124] = IXGBE_READ_REG(hw, IXGBE_MDFTS);
 878         regs_buff[1125] = IXGBE_READ_REG(hw, IXGBE_PCIEECCCTL);
 879         regs_buff[1126] = IXGBE_READ_REG(hw, IXGBE_PBTXECC);
 880         regs_buff[1127] = IXGBE_READ_REG(hw, IXGBE_PBRXECC);
 881
 882         /* 82599 X540 specific registers  */
 883         regs_buff[1128] = IXGBE_READ_REG(hw, IXGBE_MFLCN);
 884
 885         /* 82599 X540 specific DCB registers  */
 886         regs_buff[1129] = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC);
 887         regs_buff[1130] = IXGBE_READ_REG(hw, IXGBE_RTTUP2TC);
 888         for (i = 0; i < 4; i++)
 889                 regs_buff[1131 + i] = IXGBE_READ_REG(hw, IXGBE_TXLLQ(i));
 890         regs_buff[1135] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRM);
 891                                         /* same as RTTQCNRM */
 892         regs_buff[1136] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRD);
 893                                         /* same as RTTQCNRR */
 894
 895         /* X540 specific DCB registers  */
 896         regs_buff[1137] = IXGBE_READ_REG(hw, IXGBE_RTTQCNCR);
 897         regs_buff[1138] = IXGBE_READ_REG(hw, IXGBE_RTTQCNTG);
 898 }
 899
 900 static int ixgbe_get_eeprom_len(struct net_device *netdev)
 901 {
 902         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 903         return adapter->hw.eeprom.word_size * 2;
 904 }
 905
 906 static int ixgbe_get_eeprom(struct net_device *netdev,
 907                             struct ethtool_eeprom *eeprom, u8 *bytes)
 908 {
 909         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 910         struct ixgbe_hw *hw = &adapter->hw;
 911         u16 *eeprom_buff;
 912         int first_word, last_word, eeprom_len;
 913         int ret_val = 0;
 914         u16 i;
 915
 916         if (eeprom->len == 0)
 917                 return -EINVAL;
 918
 919         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 920
 921         first_word = eeprom->offset >> 1;
 922         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 923         eeprom_len = last_word - first_word + 1;
 924
 925         eeprom_buff = kmalloc(sizeof(u16) * eeprom_len, GFP_KERNEL);
 926         if (!eeprom_buff)
 927                 return -ENOMEM;
 928
 929         ret_val = hw->eeprom.ops.read_buffer(hw, first_word, eeprom_len,
 930                                              eeprom_buff);
 931
 932         /* Device's eeprom is always little-endian, word addressable */
 933         for (i = 0; i < eeprom_len; i++)
 934                 le16_to_cpus(&eeprom_buff[i]);
 935
 936         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 937         kfree(eeprom_buff);
 938
 939         return ret_val;
 940 }
 941
 942 static int ixgbe_set_eeprom(struct net_device *netdev,
 943                             struct ethtool_eeprom *eeprom, u8 *bytes)
 944 {
 945         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 946         struct ixgbe_hw *hw = &adapter->hw;
 947         u16 *eeprom_buff;
 948         void *ptr;
 949         int max_len, first_word, last_word, ret_val = 0;
 950         u16 i;
 951
 952         if (eeprom->len == 0)
 953                 return -EINVAL;
 954
 955         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 956                 return -EINVAL;
 957
 958         max_len = hw->eeprom.word_size * 2;
 959
 960         first_word = eeprom->offset >> 1;
 961         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 962         eeprom_buff = kmalloc(max_len, GFP_KERNEL);
 963         if (!eeprom_buff)
 964                 return -ENOMEM;
 965
 966         ptr = eeprom_buff;
 967
 968         if (eeprom->offset & 1) {
 969                 /*
 970                  * need read/modify/write of first changed EEPROM word
 971                  * only the second byte of the word is being modified
 972                  */
 973                 ret_val = hw->eeprom.ops.read(hw, first_word, &eeprom_buff[0]);
 974                 if (ret_val)
 975                         goto err;
 976
 977                 ptr++;
 978         }
 979         if ((eeprom->offset + eeprom->len) & 1) {
 980                 /*
 981                  * need read/modify/write of last changed EEPROM word
 982                  * only the first byte of the word is being modified
 983                  */
 984                 ret_val = hw->eeprom.ops.read(hw, last_word,
 985                                           &eeprom_buff[last_word - first_word]);
 986                 if (ret_val)
 987                         goto err;
 988         }
 989
 990         /* Device's eeprom is always little-endian, word addressable */
 991         for (i = 0; i < last_word - first_word + 1; i++)
 992                 le16_to_cpus(&eeprom_buff[i]);
 993
 994         memcpy(ptr, bytes, eeprom->len);
 995
 996         for (i = 0; i < last_word - first_word + 1; i++)
 997                 cpu_to_le16s(&eeprom_buff[i]);
 998
 999         ret_val = hw->eeprom.ops.write_buffer(hw, first_word,
1000                                               last_word - first_word + 1,
1001                                               eeprom_buff);
1002
1003         /* Update the checksum */
1004         if (ret_val == 0)
1005                 hw->eeprom.ops.update_checksum(hw);
1006
1007 err:
1008         kfree(eeprom_buff);
1009         return ret_val;
1010 }
1011
1012 static void ixgbe_get_drvinfo(struct net_device *netdev,
1013                               struct ethtool_drvinfo *drvinfo)
1014 {
1015         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1016         u32 nvm_track_id;
1017
1018         strlcpy(drvinfo->driver, ixgbe_driver_name, sizeof(drvinfo->driver));
1019         strlcpy(drvinfo->version, ixgbe_driver_version,
1020                 sizeof(drvinfo->version));
1021
1022         nvm_track_id = (adapter->eeprom_verh << 16) |
1023                         adapter->eeprom_verl;
1024         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "0x%08x",
1025                  nvm_track_id);
1026
1027         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
1028                 sizeof(drvinfo->bus_info));
1029
1030         drvinfo->n_priv_flags = IXGBE_PRIV_FLAGS_STR_LEN;
1031 }
1032
1033 static void ixgbe_get_ringparam(struct net_device *netdev,
1034                                 struct ethtool_ringparam *ring)
1035 {
1036         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1037         struct ixgbe_ring *tx_ring = adapter->tx_ring[0];
1038         struct ixgbe_ring *rx_ring = adapter->rx_ring[0];
1039
1040         ring->rx_max_pending = IXGBE_MAX_RXD;
1041         ring->tx_max_pending = IXGBE_MAX_TXD;
1042         ring->rx_pending = rx_ring->count;
1043         ring->tx_pending = tx_ring->count;
1044 }
1045
1046 static int ixgbe_set_ringparam(struct net_device *netdev,
1047                                struct ethtool_ringparam *ring)
1048 {
1049         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1050         struct ixgbe_ring *temp_ring;
1051         int i, j, err = 0;
1052         u32 new_rx_count, new_tx_count;
1053
1054         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1055                 return -EINVAL;
1056
1057         new_tx_count = clamp_t(u32, ring->tx_pending,
1058                                IXGBE_MIN_TXD, IXGBE_MAX_TXD);
1059         new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
1060
1061         new_rx_count = clamp_t(u32, ring->rx_pending,
1062                                IXGBE_MIN_RXD, IXGBE_MAX_RXD);
1063         new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
1064
1065         if ((new_tx_count == adapter->tx_ring_count) &&
1066             (new_rx_count == adapter->rx_ring_count)) {
1067                 /* nothing to do */
1068                 return 0;
1069         }
1070
1071         while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
1072                 usleep_range(1000, 2000);
1073
1074         if (!netif_running(adapter->netdev)) {
1075                 for (i = 0; i < adapter->num_tx_queues; i++)
1076                         adapter->tx_ring[i]->count = new_tx_count;
1077                 for (i = 0; i < adapter->num_xdp_queues; i++)
1078                         adapter->xdp_ring[i]->count = new_tx_count;
1079                 for (i = 0; i < adapter->num_rx_queues; i++)
1080                         adapter->rx_ring[i]->count = new_rx_count;
1081                 adapter->tx_ring_count = new_tx_count;
1082                 adapter->xdp_ring_count = new_tx_count;
1083                 adapter->rx_ring_count = new_rx_count;
1084                 goto clear_reset;
1085         }
1086
1087         /* allocate temporary buffer to store rings in */
1088         i = max_t(int, adapter->num_tx_queues + adapter->num_xdp_queues,
1089                   adapter->num_rx_queues);
1090         temp_ring = vmalloc(i * sizeof(struct ixgbe_ring));
1091
1092         if (!temp_ring) {
1093                 err = -ENOMEM;
1094                 goto clear_reset;
1095         }
1096
1097         ixgbe_down(adapter);
1098
1099         /*
1100          * Setup new Tx resources and free the old Tx resources in that order.
1101          * We can then assign the new resources to the rings via a memcpy.
1102          * The advantage to this approach is that we are guaranteed to still
1103          * have resources even in the case of an allocation failure.
1104          */
1105         if (new_tx_count != adapter->tx_ring_count) {
1106                 for (i = 0; i < adapter->num_tx_queues; i++) {
1107                         memcpy(&temp_ring[i], adapter->tx_ring[i],
1108                                sizeof(struct ixgbe_ring));
1109
1110                         temp_ring[i].count = new_tx_count;
1111                         err = ixgbe_setup_tx_resources(&temp_ring[i]);
1112                         if (err) {
1113                                 while (i) {
1114                                         i--;
1115                                         ixgbe_free_tx_resources(&temp_ring[i]);
1116                                 }
1117                                 goto err_setup;
1118                         }
1119                 }
1120
1121                 for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
1122                         memcpy(&temp_ring[i], adapter->xdp_ring[j],
1123                                sizeof(struct ixgbe_ring));
1124
1125                         temp_ring[i].count = new_tx_count;
1126                         err = ixgbe_setup_tx_resources(&temp_ring[i]);
1127                         if (err) {
1128                                 while (i) {
1129                                         i--;
1130                                         ixgbe_free_tx_resources(&temp_ring[i]);
1131                                 }
1132                                 goto err_setup;
1133                         }
1134                 }
1135
1136                 for (i = 0; i < adapter->num_tx_queues; i++) {
1137                         ixgbe_free_tx_resources(adapter->tx_ring[i]);
1138
1139                         memcpy(adapter->tx_ring[i], &temp_ring[i],
1140                                sizeof(struct ixgbe_ring));
1141                 }
1142                 for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
1143                         ixgbe_free_tx_resources(adapter->xdp_ring[j]);
1144
1145                         memcpy(adapter->xdp_ring[j], &temp_ring[i],
1146                                sizeof(struct ixgbe_ring));
1147                 }
1148
1149                 adapter->tx_ring_count = new_tx_count;
1150         }
1151
1152         /* Repeat the process for the Rx rings if needed */
1153         if (new_rx_count != adapter->rx_ring_count) {
1154                 for (i = 0; i < adapter->num_rx_queues; i++) {
1155                         memcpy(&temp_ring[i], adapter->rx_ring[i],
1156                                sizeof(struct ixgbe_ring));
1157
1158                         temp_ring[i].count = new_rx_count;
1159                         err = ixgbe_setup_rx_resources(adapter, &temp_ring[i]);
1160                         if (err) {
1161                                 while (i) {
1162                                         i--;
1163                                         ixgbe_free_rx_resources(&temp_ring[i]);
1164                                 }
1165                                 goto err_setup;
1166                         }
1167
1168                 }
1169
1170                 for (i = 0; i < adapter->num_rx_queues; i++) {
1171                         ixgbe_free_rx_resources(adapter->rx_ring[i]);
1172
1173                         memcpy(adapter->rx_ring[i], &temp_ring[i],
1174                                sizeof(struct ixgbe_ring));
1175                 }
1176
1177                 adapter->rx_ring_count = new_rx_count;
1178         }
1179
1180 err_setup:
1181         ixgbe_up(adapter);
1182         vfree(temp_ring);
1183 clear_reset:
1184         clear_bit(__IXGBE_RESETTING, &adapter->state);
1185         return err;
1186 }
1187
1188 static int ixgbe_get_sset_count(struct net_device *netdev, int sset)
1189 {
1190         switch (sset) {
1191         case ETH_SS_TEST:
1192                 return IXGBE_TEST_LEN;
1193         case ETH_SS_STATS:
1194                 return IXGBE_STATS_LEN;
1195         case ETH_SS_PRIV_FLAGS:
1196                 return IXGBE_PRIV_FLAGS_STR_LEN;
1197         default:
1198                 return -EOPNOTSUPP;
1199         }
1200 }
1201
1202 static void ixgbe_get_ethtool_stats(struct net_device *netdev,
1203                                     struct ethtool_stats *stats, u64 *data)
1204 {
1205         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1206         struct rtnl_link_stats64 temp;
1207         const struct rtnl_link_stats64 *net_stats;
1208         unsigned int start;
1209         struct ixgbe_ring *ring;
1210         int i, j;
1211         char *p = NULL;
1212
1213         ixgbe_update_stats(adapter);
1214         net_stats = dev_get_stats(netdev, &temp);
1215         for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
1216                 switch (ixgbe_gstrings_stats[i].type) {
1217                 case NETDEV_STATS:
1218                         p = (char *) net_stats +
1219                                         ixgbe_gstrings_stats[i].stat_offset;
1220                         break;
1221                 case IXGBE_STATS:
1222                         p = (char *) adapter +
1223                                         ixgbe_gstrings_stats[i].stat_offset;
1224                         break;
1225                 default:
1226                         data[i] = 0;
1227                         continue;
1228                 }
1229
1230                 data[i] = (ixgbe_gstrings_stats[i].sizeof_stat ==
1231                            sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1232         }
1233         for (j = 0; j < netdev->num_tx_queues; j++) {
1234                 ring = adapter->tx_ring[j];
1235                 if (!ring) {
1236                         data[i] = 0;
1237                         data[i+1] = 0;
1238                         i += 2;
1239                         continue;
1240                 }
1241
1242                 do {
1243                         start = u64_stats_fetch_begin_irq(&ring->syncp);
1244                         data[i]   = ring->stats.packets;
1245                         data[i+1] = ring->stats.bytes;
1246                 } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
1247                 i += 2;
1248         }
1249         for (j = 0; j < IXGBE_NUM_RX_QUEUES; j++) {
1250                 ring = adapter->rx_ring[j];
1251                 if (!ring) {
1252                         data[i] = 0;
1253                         data[i+1] = 0;
1254                         i += 2;
1255                         continue;
1256                 }
1257
1258                 do {
1259                         start = u64_stats_fetch_begin_irq(&ring->syncp);
1260                         data[i]   = ring->stats.packets;
1261                         data[i+1] = ring->stats.bytes;
1262                 } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
1263                 i += 2;
1264         }
1265
1266         for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
1267                 data[i++] = adapter->stats.pxontxc[j];
1268                 data[i++] = adapter->stats.pxofftxc[j];
1269         }
1270         for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
1271                 data[i++] = adapter->stats.pxonrxc[j];
1272                 data[i++] = adapter->stats.pxoffrxc[j];
1273         }
1274 }
1275
1276 static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
1277                               u8 *data)
1278 {
1279         char *p = (char *)data;
1280         unsigned int i;
1281
1282         switch (stringset) {
1283         case ETH_SS_TEST:
1284                 for (i = 0; i < IXGBE_TEST_LEN; i++) {
1285                         memcpy(data, ixgbe_gstrings_test[i], ETH_GSTRING_LEN);
1286                         data += ETH_GSTRING_LEN;
1287                 }
1288                 break;
1289         case ETH_SS_STATS:
1290                 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
1291                         memcpy(p, ixgbe_gstrings_stats[i].stat_string,
1292                                ETH_GSTRING_LEN);
1293                         p += ETH_GSTRING_LEN;
1294                 }
1295                 for (i = 0; i < netdev->num_tx_queues; i++) {
1296                         sprintf(p, "tx_queue_%u_packets", i);
1297                         p += ETH_GSTRING_LEN;
1298                         sprintf(p, "tx_queue_%u_bytes", i);
1299                         p += ETH_GSTRING_LEN;
1300                 }
1301                 for (i = 0; i < IXGBE_NUM_RX_QUEUES; i++) {
1302                         sprintf(p, "rx_queue_%u_packets", i);
1303                         p += ETH_GSTRING_LEN;
1304                         sprintf(p, "rx_queue_%u_bytes", i);
1305                         p += ETH_GSTRING_LEN;
1306                 }
1307                 for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
1308                         sprintf(p, "tx_pb_%u_pxon", i);
1309                         p += ETH_GSTRING_LEN;
1310                         sprintf(p, "tx_pb_%u_pxoff", i);
1311                         p += ETH_GSTRING_LEN;
1312                 }
1313                 for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
1314                         sprintf(p, "rx_pb_%u_pxon", i);
1315                         p += ETH_GSTRING_LEN;
1316                         sprintf(p, "rx_pb_%u_pxoff", i);
1317                         p += ETH_GSTRING_LEN;
1318                 }
1319                 /* BUG_ON(p - data != IXGBE_STATS_LEN * ETH_GSTRING_LEN); */
1320                 break;
1321         case ETH_SS_PRIV_FLAGS:
1322                 memcpy(data, ixgbe_priv_flags_strings,
1323                        IXGBE_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
1324         }
1325 }
1326
1327 static int ixgbe_link_test(struct ixgbe_adapter *adapter, u64 *data)
1328 {
1329         struct ixgbe_hw *hw = &adapter->hw;
1330         bool link_up;
1331         u32 link_speed = 0;
1332
1333         if (ixgbe_removed(hw->hw_addr)) {
1334                 *data = 1;
1335                 return 1;
1336         }
1337         *data = 0;
1338
1339         hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
1340         if (link_up)
1341                 return *data;
1342         else
1343                 *data = 1;
1344         return *data;
1345 }
1346
1347 /* ethtool register test data */
1348 struct ixgbe_reg_test {
1349         u16 reg;
1350         u8  array_len;
1351         u8  test_type;
1352         u32 mask;
1353         u32 write;
1354 };
1355
1356 /* In the hardware, registers are laid out either singly, in arrays
1357  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
1358  * most tests take place on arrays or single registers (handled
1359  * as a single-element array) and special-case the tables.
1360  * Table tests are always pattern tests.
1361  *
1362  * We also make provision for some required setup steps by specifying
1363  * registers to be written without any read-back testing.
1364  */
1365
1366 #define PATTERN_TEST    1
1367 #define SET_READ_TEST   2
1368 #define WRITE_NO_TEST   3
1369 #define TABLE32_TEST    4
1370 #define TABLE64_TEST_LO 5
1371 #define TABLE64_TEST_HI 6
1372
1373 /* default 82599 register test */
1374 static const struct ixgbe_reg_test reg_test_82599[] = {
1375         { IXGBE_FCRTL_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1376         { IXGBE_FCRTH_82599(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1377         { IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1378         { IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
1379         { IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
1380         { IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1381         { IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1382         { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
1383         { IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1384         { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
1385         { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1386         { IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1387         { IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1388         { IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1389         { IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
1390         { IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000001, 0x00000001 },
1391         { IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1392         { IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x8001FFFF, 0x800CFFFF },
1393         { IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1394         { .reg = 0 }
1395 };
1396
1397 /* default 82598 register test */
1398 static const struct ixgbe_reg_test reg_test_82598[] = {
1399         { IXGBE_FCRTL(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1400         { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1401         { IXGBE_PFCTOP, 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1402         { IXGBE_VLNCTRL, 1, PATTERN_TEST, 0x00000000, 0x00000000 },
1403         { IXGBE_RDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1404         { IXGBE_RDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1405         { IXGBE_RDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1406         /* Enable all four RX queues before testing. */
1407         { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
1408         /* RDH is read-only for 82598, only test RDT. */
1409         { IXGBE_RDT(0), 4, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
1410         { IXGBE_RXDCTL(0), 4, WRITE_NO_TEST, 0, 0 },
1411         { IXGBE_FCRTH(0), 1, PATTERN_TEST, 0x8007FFF0, 0x8007FFF0 },
1412         { IXGBE_FCTTV(0), 1, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1413         { IXGBE_TIPG, 1, PATTERN_TEST, 0x000000FF, 0x000000FF },
1414         { IXGBE_TDBAL(0), 4, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
1415         { IXGBE_TDBAH(0), 4, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1416         { IXGBE_TDLEN(0), 4, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
1417         { IXGBE_RXCTRL, 1, SET_READ_TEST, 0x00000003, 0x00000003 },
1418         { IXGBE_DTXCTL, 1, SET_READ_TEST, 0x00000005, 0x00000005 },
1419         { IXGBE_RAL(0), 16, TABLE64_TEST_LO, 0xFFFFFFFF, 0xFFFFFFFF },
1420         { IXGBE_RAL(0), 16, TABLE64_TEST_HI, 0x800CFFFF, 0x800CFFFF },
1421         { IXGBE_MTA(0), 128, TABLE32_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
1422         { .reg = 0 }
1423 };
1424
1425 static bool reg_pattern_test(struct ixgbe_adapter *adapter, u64 *data, int reg,
1426                              u32 mask, u32 write)
1427 {
1428         u32 pat, val, before;
1429         static const u32 test_pattern[] = {
1430                 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};
1431
1432         if (ixgbe_removed(adapter->hw.hw_addr)) {
1433                 *data = 1;
1434                 return true;
1435         }
1436         for (pat = 0; pat < ARRAY_SIZE(test_pattern); pat++) {
1437                 before = ixgbe_read_reg(&adapter->hw, reg);
1438                 ixgbe_write_reg(&adapter->hw, reg, test_pattern[pat] & write);
1439                 val = ixgbe_read_reg(&adapter->hw, reg);
1440                 if (val != (test_pattern[pat] & write & mask)) {
1441                         e_err(drv, "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
1442                               reg, val, (test_pattern[pat] & write & mask));
1443                         *data = reg;
1444                         ixgbe_write_reg(&adapter->hw, reg, before);
1445                         return true;
1446                 }
1447                 ixgbe_write_reg(&adapter->hw, reg, before);
1448         }
1449         return false;
1450 }
1451
1452 static bool reg_set_and_check(struct ixgbe_adapter *adapter, u64 *data, int reg,
1453                               u32 mask, u32 write)
1454 {
1455         u32 val, before;
1456
1457         if (ixgbe_removed(adapter->hw.hw_addr)) {
1458                 *data = 1;
1459                 return true;
1460         }
1461         before = ixgbe_read_reg(&adapter->hw, reg);
1462         ixgbe_write_reg(&adapter->hw, reg, write & mask);
1463         val = ixgbe_read_reg(&adapter->hw, reg);
1464         if ((write & mask) != (val & mask)) {
1465                 e_err(drv, "set/check reg %04X test failed: got 0x%08X expected 0x%08X\n",
1466                       reg, (val & mask), (write & mask));
1467                 *data = reg;
1468                 ixgbe_write_reg(&adapter->hw, reg, before);
1469                 return true;
1470         }
1471         ixgbe_write_reg(&adapter->hw, reg, before);
1472         return false;
1473 }
1474
1475 static int ixgbe_reg_test(struct ixgbe_adapter *adapter, u64 *data)
1476 {
1477         const struct ixgbe_reg_test *test;
1478         u32 value, before, after;
1479         u32 i, toggle;
1480
1481         if (ixgbe_removed(adapter->hw.hw_addr)) {
1482                 e_err(drv, "Adapter removed - register test blocked\n");
1483                 *data = 1;
1484                 return 1;
1485         }
1486         switch (adapter->hw.mac.type) {
1487         case ixgbe_mac_82598EB:
1488                 toggle = 0x7FFFF3FF;
1489                 test = reg_test_82598;
1490                 break;
1491         case ixgbe_mac_82599EB:
1492         case ixgbe_mac_X540:
1493         case ixgbe_mac_X550:
1494         case ixgbe_mac_X550EM_x:
1495         case ixgbe_mac_x550em_a:
1496                 toggle = 0x7FFFF30F;
1497                 test = reg_test_82599;
1498                 break;
1499         default:
1500                 *data = 1;
1501                 return 1;
1502         }
1503
1504         /*
1505          * Because the status register is such a special case,
1506          * we handle it separately from the rest of the register
1507          * tests.  Some bits are read-only, some toggle, and some
1508          * are writeable on newer MACs.
1509          */
1510         before = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS);
1511         value = (ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle);
1512         ixgbe_write_reg(&adapter->hw, IXGBE_STATUS, toggle);
1513         after = ixgbe_read_reg(&adapter->hw, IXGBE_STATUS) & toggle;
1514         if (value != after) {
1515                 e_err(drv, "failed STATUS register test got: 0x%08X expected: 0x%08X\n",
1516                       after, value);
1517                 *data = 1;
1518                 return 1;
1519         }
1520         /* restore previous status */
1521         ixgbe_write_reg(&adapter->hw, IXGBE_STATUS, before);
1522
1523         /*
1524          * Perform the remainder of the register test, looping through
1525          * the test table until we either fail or reach the null entry.
1526          */
1527         while (test->reg) {
1528                 for (i = 0; i < test->array_len; i++) {
1529                         bool b = false;
1530
1531                         switch (test->test_type) {
1532                         case PATTERN_TEST:
1533                                 b = reg_pattern_test(adapter, data,
1534                                                      test->reg + (i * 0x40),
1535                                                      test->mask,
1536                                                      test->write);
1537                                 break;
1538                         case SET_READ_TEST:
1539                                 b = reg_set_and_check(adapter, data,
1540                                                       test->reg + (i * 0x40),
1541                                                       test->mask,
1542                                                       test->write);
1543                                 break;
1544                         case WRITE_NO_TEST:
1545                                 ixgbe_write_reg(&adapter->hw,
1546                                                 test->reg + (i * 0x40),
1547                                                 test->write);
1548                                 break;
1549                         case TABLE32_TEST:
1550                                 b = reg_pattern_test(adapter, data,
1551                                                      test->reg + (i * 4),
1552                                                      test->mask,
1553                                                      test->write);
1554                                 break;
1555                         case TABLE64_TEST_LO:
1556                                 b = reg_pattern_test(adapter, data,
1557                                                      test->reg + (i * 8),
1558                                                      test->mask,
1559                                                      test->write);
1560                                 break;
1561                         case TABLE64_TEST_HI:
1562                                 b = reg_pattern_test(adapter, data,
1563                                                      (test->reg + 4) + (i * 8),
1564                                                      test->mask,
1565                                                      test->write);
1566                                 break;
1567                         }
1568                         if (b)
1569                                 return 1;
1570                 }
1571                 test++;
1572         }
1573
1574         *data = 0;
1575         return 0;
1576 }
1577
1578 static int ixgbe_eeprom_test(struct ixgbe_adapter *adapter, u64 *data)
1579 {
1580         struct ixgbe_hw *hw = &adapter->hw;
1581         if (hw->eeprom.ops.validate_checksum(hw, NULL))
1582                 *data = 1;
1583         else
1584                 *data = 0;
1585         return *data;
1586 }
1587
1588 static irqreturn_t ixgbe_test_intr(int irq, void *data)
1589 {
1590         struct net_device *netdev = (struct net_device *) data;
1591         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1592
1593         adapter->test_icr |= IXGBE_READ_REG(&adapter->hw, IXGBE_EICR);
1594
1595         return IRQ_HANDLED;
1596 }
1597
1598 static int ixgbe_intr_test(struct ixgbe_adapter *adapter, u64 *data)
1599 {
1600         struct net_device *netdev = adapter->netdev;
1601         u32 mask, i = 0, shared_int = true;
1602         u32 irq = adapter->pdev->irq;
1603
1604         *data = 0;
1605
1606         /* Hook up test interrupt handler just for this test */
1607         if (adapter->msix_entries) {
1608                 /* NOTE: we don't test MSI-X interrupts here, yet */
1609                 return 0;
1610         } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) {
1611                 shared_int = false;
1612                 if (request_irq(irq, ixgbe_test_intr, 0, netdev->name,
1613                                 netdev)) {
1614                         *data = 1;
1615                         return -1;
1616                 }
1617         } else if (!request_irq(irq, ixgbe_test_intr, IRQF_PROBE_SHARED,
1618                                 netdev->name, netdev)) {
1619                 shared_int = false;
1620         } else if (request_irq(irq, ixgbe_test_intr, IRQF_SHARED,
1621                                netdev->name, netdev)) {
1622                 *data = 1;
1623                 return -1;
1624         }
1625         e_info(hw, "testing %s interrupt\n", shared_int ?
1626                "shared" : "unshared");
1627
1628         /* Disable all the interrupts */
1629         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
1630         IXGBE_WRITE_FLUSH(&adapter->hw);
1631         usleep_range(10000, 20000);
1632
1633         /* Test each interrupt */
1634         for (; i < 10; i++) {
1635                 /* Interrupt to test */
1636                 mask = BIT(i);
1637
1638                 if (!shared_int) {
1639                         /*
1640                          * Disable the interrupts to be reported in
1641                          * the cause register and then force the same
1642                          * interrupt and see if one gets posted.  If
1643                          * an interrupt was posted to the bus, the
1644                          * test failed.
1645                          */
1646                         adapter->test_icr = 0;
1647                         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
1648                                         ~mask & 0x00007FFF);
1649                         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
1650                                         ~mask & 0x00007FFF);
1651                         IXGBE_WRITE_FLUSH(&adapter->hw);
1652                         usleep_range(10000, 20000);
1653
1654                         if (adapter->test_icr & mask) {
1655                                 *data = 3;
1656                                 break;
1657                         }
1658                 }
1659
1660                 /*
1661                  * Enable the interrupt to be reported in the cause
1662                  * register and then force the same interrupt and see
1663                  * if one gets posted.  If an interrupt was not posted
1664                  * to the bus, the test failed.
1665                  */
1666                 adapter->test_icr = 0;
1667                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
1668                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask);
1669                 IXGBE_WRITE_FLUSH(&adapter->hw);
1670                 usleep_range(10000, 20000);
1671
1672                 if (!(adapter->test_icr & mask)) {
1673                         *data = 4;
1674                         break;
1675                 }
1676
1677                 if (!shared_int) {
1678                         /*
1679                          * Disable the other interrupts to be reported in
1680                          * the cause register and then force the other
1681                          * interrupts and see if any get posted.  If
1682                          * an interrupt was posted to the bus, the
1683                          * test failed.
1684                          */
1685                         adapter->test_icr = 0;
1686                         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC,
1687                                         ~mask & 0x00007FFF);
1688                         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS,
1689                                         ~mask & 0x00007FFF);
1690                         IXGBE_WRITE_FLUSH(&adapter->hw);
1691                         usleep_range(10000, 20000);
1692
1693                         if (adapter->test_icr) {
1694                                 *data = 5;
1695                                 break;
1696                         }
1697                 }
1698         }
1699
1700         /* Disable all the interrupts */
1701         IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFFFFFF);
1702         IXGBE_WRITE_FLUSH(&adapter->hw);
1703         usleep_range(10000, 20000);
1704
1705         /* Unhook test interrupt handler */
1706         free_irq(irq, netdev);
1707
1708         return *data;
1709 }
1710
1711 static void ixgbe_free_desc_rings(struct ixgbe_adapter *adapter)
1712 {
1713         struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
1714         struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
1715         struct ixgbe_hw *hw = &adapter->hw;
1716         u32 reg_ctl;
1717
1718         /* shut down the DMA engines now so they can be reinitialized later */
1719
1720         /* first Rx */
1721         hw->mac.ops.disable_rx(hw);
1722         ixgbe_disable_rx_queue(adapter, rx_ring);
1723
1724         /* now Tx */
1725         reg_ctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(tx_ring->reg_idx));
1726         reg_ctl &= ~IXGBE_TXDCTL_ENABLE;
1727         IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(tx_ring->reg_idx), reg_ctl);
1728
1729         switch (hw->mac.type) {
1730         case ixgbe_mac_82599EB:
1731         case ixgbe_mac_X540:
1732         case ixgbe_mac_X550:
1733         case ixgbe_mac_X550EM_x:
1734         case ixgbe_mac_x550em_a:
1735                 reg_ctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL);
1736                 reg_ctl &= ~IXGBE_DMATXCTL_TE;
1737                 IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, reg_ctl);
1738                 break;
1739         default:
1740                 break;
1741         }
1742
1743         ixgbe_reset(adapter);
1744
1745         ixgbe_free_tx_resources(&adapter->test_tx_ring);
1746         ixgbe_free_rx_resources(&adapter->test_rx_ring);
1747 }
1748
1749 static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
1750 {
1751         struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
1752         struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
1753         struct ixgbe_hw *hw = &adapter->hw;
1754         u32 rctl, reg_data;
1755         int ret_val;
1756         int err;
1757
1758         /* Setup Tx descriptor ring and Tx buffers */
1759         tx_ring->count = IXGBE_DEFAULT_TXD;
1760         tx_ring->queue_index = 0;
1761         tx_ring->dev = &adapter->pdev->dev;
1762         tx_ring->netdev = adapter->netdev;
1763         tx_ring->reg_idx = adapter->tx_ring[0]->reg_idx;
1764
1765         err = ixgbe_setup_tx_resources(tx_ring);
1766         if (err)
1767                 return 1;
1768
1769         switch (adapter->hw.mac.type) {
1770         case ixgbe_mac_82599EB:
1771         case ixgbe_mac_X540:
1772         case ixgbe_mac_X550:
1773         case ixgbe_mac_X550EM_x:
1774         case ixgbe_mac_x550em_a:
1775                 reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_DMATXCTL);
1776                 reg_data |= IXGBE_DMATXCTL_TE;
1777                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_DMATXCTL, reg_data);
1778                 break;
1779         default:
1780                 break;
1781         }
1782
1783         ixgbe_configure_tx_ring(adapter, tx_ring);
1784
1785         /* Setup Rx Descriptor ring and Rx buffers */
1786         rx_ring->count = IXGBE_DEFAULT_RXD;
1787         rx_ring->queue_index = 0;
1788         rx_ring->dev = &adapter->pdev->dev;
1789         rx_ring->netdev = adapter->netdev;
1790         rx_ring->reg_idx = adapter->rx_ring[0]->reg_idx;
1791
1792         err = ixgbe_setup_rx_resources(adapter, rx_ring);
1793         if (err) {
1794                 ret_val = 4;
1795                 goto err_nomem;
1796         }
1797
1798         hw->mac.ops.disable_rx(hw);
1799
1800         ixgbe_configure_rx_ring(adapter, rx_ring);
1801
1802         rctl = IXGBE_READ_REG(&adapter->hw, IXGBE_RXCTRL);
1803         rctl |= IXGBE_RXCTRL_DMBYPS;
1804         IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXCTRL, rctl);
1805
1806         hw->mac.ops.enable_rx(hw);
1807
1808         return 0;
1809
1810 err_nomem:
1811         ixgbe_free_desc_rings(adapter);
1812         return ret_val;
1813 }
1814
1815 static int ixgbe_setup_loopback_test(struct ixgbe_adapter *adapter)
1816 {
1817         struct ixgbe_hw *hw = &adapter->hw;
1818         u32 reg_data;
1819
1820
1821         /* Setup MAC loopback */
1822         reg_data = IXGBE_READ_REG(hw, IXGBE_HLREG0);
1823         reg_data |= IXGBE_HLREG0_LPBK;
1824         IXGBE_WRITE_REG(hw, IXGBE_HLREG0, reg_data);
1825
1826         reg_data = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1827         reg_data |= IXGBE_FCTRL_BAM | IXGBE_FCTRL_SBP | IXGBE_FCTRL_MPE;
1828         IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg_data);
1829
1830         /* X540 and X550 needs to set the MACC.FLU bit to force link up */
1831         switch (adapter->hw.mac.type) {
1832         case ixgbe_mac_X540:
1833         case ixgbe_mac_X550:
1834         case ixgbe_mac_X550EM_x:
1835         case ixgbe_mac_x550em_a:
1836                 reg_data = IXGBE_READ_REG(hw, IXGBE_MACC);
1837                 reg_data |= IXGBE_MACC_FLU;
1838                 IXGBE_WRITE_REG(hw, IXGBE_MACC, reg_data);
1839                 break;
1840         default:
1841                 if (hw->mac.orig_autoc) {
1842                         reg_data = hw->mac.orig_autoc | IXGBE_AUTOC_FLU;
1843                         IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_data);
1844                 } else {
1845                         return 10;
1846                 }
1847         }
1848         IXGBE_WRITE_FLUSH(hw);
1849         usleep_range(10000, 20000);
1850
1851         /* Disable Atlas Tx lanes; re-enabled in reset path */
1852         if (hw->mac.type == ixgbe_mac_82598EB) {
1853                 u8 atlas;
1854
1855                 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &atlas);
1856                 atlas |= IXGBE_ATLAS_PDN_TX_REG_EN;
1857                 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, atlas);
1858
1859                 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, &atlas);
1860                 atlas |= IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
1861                 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G, atlas);
1862
1863                 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, &atlas);
1864                 atlas |= IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
1865                 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G, atlas);
1866
1867                 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, &atlas);
1868                 atlas |= IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
1869                 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN, atlas);
1870         }
1871
1872         return 0;
1873 }
1874
1875 static void ixgbe_loopback_cleanup(struct ixgbe_adapter *adapter)
1876 {
1877         u32 reg_data;
1878
1879         reg_data = IXGBE_READ_REG(&adapter->hw, IXGBE_HLREG0);
1880         reg_data &= ~IXGBE_HLREG0_LPBK;
1881         IXGBE_WRITE_REG(&adapter->hw, IXGBE_HLREG0, reg_data);
1882 }
1883
1884 static void ixgbe_create_lbtest_frame(struct sk_buff *skb,
1885                                       unsigned int frame_size)
1886 {
1887         memset(skb->data, 0xFF, frame_size);
1888         frame_size >>= 1;
1889         memset(&skb->data[frame_size], 0xAA, frame_size / 2 - 1);
1890         memset(&skb->data[frame_size + 10], 0xBE, 1);
1891         memset(&skb->data[frame_size + 12], 0xAF, 1);
1892 }
1893
1894 static bool ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer *rx_buffer,
1895                                      unsigned int frame_size)
1896 {
1897         unsigned char *data;
1898         bool match = true;
1899
1900         frame_size >>= 1;
1901
1902         data = kmap(rx_buffer->page) + rx_buffer->page_offset;
1903
1904         if (data[3] != 0xFF ||
1905             data[frame_size + 10] != 0xBE ||
1906             data[frame_size + 12] != 0xAF)
1907                 match = false;
1908
1909         kunmap(rx_buffer->page);
1910
1911         return match;
1912 }
1913
1914 static u16 ixgbe_clean_test_rings(struct ixgbe_ring *rx_ring,
1915                                   struct ixgbe_ring *tx_ring,
1916                                   unsigned int size)
1917 {
1918         union ixgbe_adv_rx_desc *rx_desc;
1919         struct ixgbe_rx_buffer *rx_buffer;
1920         struct ixgbe_tx_buffer *tx_buffer;
1921         u16 rx_ntc, tx_ntc, count = 0;
1922
1923         /* initialize next to clean and descriptor values */
1924         rx_ntc = rx_ring->next_to_clean;
1925         tx_ntc = tx_ring->next_to_clean;
1926         rx_desc = IXGBE_RX_DESC(rx_ring, rx_ntc);
1927
1928         while (rx_desc->wb.upper.length) {
1929                 /* check Rx buffer */
1930                 rx_buffer = &rx_ring->rx_buffer_info[rx_ntc];
1931
1932                 /* sync Rx buffer for CPU read */
1933                 dma_sync_single_for_cpu(rx_ring->dev,
1934                                         rx_buffer->dma,
1935                                         ixgbe_rx_bufsz(rx_ring),
1936                                         DMA_FROM_DEVICE);
1937
1938                 /* verify contents of skb */
1939                 if (ixgbe_check_lbtest_frame(rx_buffer, size))
1940                         count++;
1941
1942                 /* sync Rx buffer for device write */
1943                 dma_sync_single_for_device(rx_ring->dev,
1944                                            rx_buffer->dma,
1945                                            ixgbe_rx_bufsz(rx_ring),
1946                                            DMA_FROM_DEVICE);
1947
1948                 /* unmap buffer on Tx side */
1949                 tx_buffer = &tx_ring->tx_buffer_info[tx_ntc];
1950
1951                 /* Free all the Tx ring sk_buffs */
1952                 dev_kfree_skb_any(tx_buffer->skb);
1953
1954                 /* unmap skb header data */
1955                 dma_unmap_single(tx_ring->dev,
1956                                  dma_unmap_addr(tx_buffer, dma),
1957                                  dma_unmap_len(tx_buffer, len),
1958                                  DMA_TO_DEVICE);
1959                 dma_unmap_len_set(tx_buffer, len, 0);
1960
1961                 /* increment Rx/Tx next to clean counters */
1962                 rx_ntc++;
1963                 if (rx_ntc == rx_ring->count)
1964                         rx_ntc = 0;
1965                 tx_ntc++;
1966                 if (tx_ntc == tx_ring->count)
1967                         tx_ntc = 0;
1968
1969                 /* fetch next descriptor */
1970                 rx_desc = IXGBE_RX_DESC(rx_ring, rx_ntc);
1971         }
1972
1973         netdev_tx_reset_queue(txring_txq(tx_ring));
1974
1975         /* re-map buffers to ring, store next to clean values */
1976         ixgbe_alloc_rx_buffers(rx_ring, count);
1977         rx_ring->next_to_clean = rx_ntc;
1978         tx_ring->next_to_clean = tx_ntc;
1979
1980         return count;
1981 }
1982
1983 static int ixgbe_run_loopback_test(struct ixgbe_adapter *adapter)
1984 {
1985         struct ixgbe_ring *tx_ring = &adapter->test_tx_ring;
1986         struct ixgbe_ring *rx_ring = &adapter->test_rx_ring;
1987         int i, j, lc, good_cnt, ret_val = 0;
1988         unsigned int size = 1024;
1989         netdev_tx_t tx_ret_val;
1990         struct sk_buff *skb;
1991         u32 flags_orig = adapter->flags;
1992
1993         /* DCB can modify the frames on Tx */
1994         adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
1995
1996         /* allocate test skb */
1997         skb = alloc_skb(size, GFP_KERNEL);
1998         if (!skb)
1999                 return 11;
2000
2001         /* place data into test skb */
2002         ixgbe_create_lbtest_frame(skb, size);
2003         skb_put(skb, size);
2004
2005         /*
2006          * Calculate the loop count based on the largest descriptor ring
2007          * The idea is to wrap the largest ring a number of times using 64
2008          * send/receive pairs during each loop
2009          */
2010
2011         if (rx_ring->count <= tx_ring->count)
2012                 lc = ((tx_ring->count / 64) * 2) + 1;
2013         else
2014                 lc = ((rx_ring->count / 64) * 2) + 1;
2015
2016         for (j = 0; j <= lc; j++) {
2017                 /* reset count of good packets */
2018                 good_cnt = 0;
2019
2020                 /* place 64 packets on the transmit queue*/
2021                 for (i = 0; i < 64; i++) {
2022                         skb_get(skb);
2023                         tx_ret_val = ixgbe_xmit_frame_ring(skb,
2024                                                            adapter,
2025                                                            tx_ring);
2026                         if (tx_ret_val == NETDEV_TX_OK)
2027                                 good_cnt++;
2028                 }
2029
2030                 if (good_cnt != 64) {
2031                         ret_val = 12;
2032                         break;
2033                 }
2034
2035                 /* allow 200 milliseconds for packets to go from Tx to Rx */
2036                 msleep(200);
2037
2038                 good_cnt = ixgbe_clean_test_rings(rx_ring, tx_ring, size);
2039                 if (good_cnt != 64) {
2040                         ret_val = 13;
2041                         break;
2042                 }
2043         }
2044
2045         /* free the original skb */
2046         kfree_skb(skb);
2047         adapter->flags = flags_orig;
2048
2049         return ret_val;
2050 }
2051
2052 static int ixgbe_loopback_test(struct ixgbe_adapter *adapter, u64 *data)
2053 {
2054         *data = ixgbe_setup_desc_rings(adapter);
2055         if (*data)
2056                 goto out;
2057         *data = ixgbe_setup_loopback_test(adapter);
2058         if (*data)
2059                 goto err_loopback;
2060         *data = ixgbe_run_loopback_test(adapter);
2061         ixgbe_loopback_cleanup(adapter);
2062
2063 err_loopback:
2064         ixgbe_free_desc_rings(adapter);
2065 out:
2066         return *data;
2067 }
2068
2069 static void ixgbe_diag_test(struct net_device *netdev,
2070                             struct ethtool_test *eth_test, u64 *data)
2071 {
2072         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2073         bool if_running = netif_running(netdev);
2074
2075         if (ixgbe_removed(adapter->hw.hw_addr)) {
2076                 e_err(hw, "Adapter removed - test blocked\n");
2077                 data[0] = 1;
2078                 data[1] = 1;
2079                 data[2] = 1;
2080                 data[3] = 1;
2081                 data[4] = 1;
2082                 eth_test->flags |= ETH_TEST_FL_FAILED;
2083                 return;
2084         }
2085         set_bit(__IXGBE_TESTING, &adapter->state);
2086         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2087                 struct ixgbe_hw *hw = &adapter->hw;
2088
2089                 if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
2090                         int i;
2091                         for (i = 0; i < adapter->num_vfs; i++) {
2092                                 if (adapter->vfinfo[i].clear_to_send) {
2093                                         netdev_warn(netdev, "offline diagnostic is not supported when VFs are present\n");
2094                                         data[0] = 1;
2095                                         data[1] = 1;
2096                                         data[2] = 1;
2097                                         data[3] = 1;
2098                                         data[4] = 1;
2099                                         eth_test->flags |= ETH_TEST_FL_FAILED;
2100                                         clear_bit(__IXGBE_TESTING,
2101                                                   &adapter->state);
2102                                         goto skip_ol_tests;
2103                                 }
2104                         }
2105                 }
2106
2107                 /* Offline tests */
2108                 e_info(hw, "offline testing starting\n");
2109
2110                 /* Link test performed before hardware reset so autoneg doesn't
2111                  * interfere with test result
2112                  */
2113                 if (ixgbe_link_test(adapter, &data[4]))
2114                         eth_test->flags |= ETH_TEST_FL_FAILED;
2115
2116                 if (if_running)
2117                         /* indicate we're in test mode */
2118                         ixgbe_close(netdev);
2119                 else
2120                         ixgbe_reset(adapter);
2121
2122                 e_info(hw, "register testing starting\n");
2123                 if (ixgbe_reg_test(adapter, &data[0]))
2124                         eth_test->flags |= ETH_TEST_FL_FAILED;
2125
2126                 ixgbe_reset(adapter);
2127                 e_info(hw, "eeprom testing starting\n");
2128                 if (ixgbe_eeprom_test(adapter, &data[1]))
2129                         eth_test->flags |= ETH_TEST_FL_FAILED;
2130
2131                 ixgbe_reset(adapter);
2132                 e_info(hw, "interrupt testing starting\n");
2133                 if (ixgbe_intr_test(adapter, &data[2]))
2134                         eth_test->flags |= ETH_TEST_FL_FAILED;
2135
2136                 /* If SRIOV or VMDq is enabled then skip MAC
2137                  * loopback diagnostic. */
2138                 if (adapter->flags & (IXGBE_FLAG_SRIOV_ENABLED |
2139                                       IXGBE_FLAG_VMDQ_ENABLED)) {
2140                         e_info(hw, "Skip MAC loopback diagnostic in VT mode\n");
2141                         data[3] = 0;
2142                         goto skip_loopback;
2143                 }
2144
2145                 ixgbe_reset(adapter);
2146                 e_info(hw, "loopback testing starting\n");
2147                 if (ixgbe_loopback_test(adapter, &data[3]))
2148                         eth_test->flags |= ETH_TEST_FL_FAILED;
2149
2150 skip_loopback:
2151                 ixgbe_reset(adapter);
2152
2153                 /* clear testing bit and return adapter to previous state */
2154                 clear_bit(__IXGBE_TESTING, &adapter->state);
2155                 if (if_running)
2156                         ixgbe_open(netdev);
2157                 else if (hw->mac.ops.disable_tx_laser)
2158                         hw->mac.ops.disable_tx_laser(hw);
2159         } else {
2160                 e_info(hw, "online testing starting\n");
2161
2162                 /* Online tests */
2163                 if (ixgbe_link_test(adapter, &data[4]))
2164                         eth_test->flags |= ETH_TEST_FL_FAILED;
2165
2166                 /* Offline tests aren't run; pass by default */
2167                 data[0] = 0;
2168                 data[1] = 0;
2169                 data[2] = 0;
2170                 data[3] = 0;
2171
2172                 clear_bit(__IXGBE_TESTING, &adapter->state);
2173         }
2174
2175 skip_ol_tests:
2176         msleep_interruptible(4 * 1000);
2177 }
2178
2179 static int ixgbe_wol_exclusion(struct ixgbe_adapter *adapter,
2180                                struct ethtool_wolinfo *wol)
2181 {
2182         struct ixgbe_hw *hw = &adapter->hw;
2183         int retval = 0;
2184
2185         /* WOL not supported for all devices */
2186         if (!ixgbe_wol_supported(adapter, hw->device_id,
2187                                  hw->subsystem_device_id)) {
2188                 retval = 1;
2189                 wol->supported = 0;
2190         }
2191
2192         return retval;
2193 }
2194
2195 static void ixgbe_get_wol(struct net_device *netdev,
2196                           struct ethtool_wolinfo *wol)
2197 {
2198         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2199
2200         wol->supported = WAKE_UCAST | WAKE_MCAST |
2201                          WAKE_BCAST | WAKE_MAGIC;
2202         wol->wolopts = 0;
2203
2204         if (ixgbe_wol_exclusion(adapter, wol) ||
2205             !device_can_wakeup(&adapter->pdev->dev))
2206                 return;
2207
2208         if (adapter->wol & IXGBE_WUFC_EX)
2209                 wol->wolopts |= WAKE_UCAST;
2210         if (adapter->wol & IXGBE_WUFC_MC)
2211                 wol->wolopts |= WAKE_MCAST;
2212         if (adapter->wol & IXGBE_WUFC_BC)
2213                 wol->wolopts |= WAKE_BCAST;
2214         if (adapter->wol & IXGBE_WUFC_MAG)
2215                 wol->wolopts |= WAKE_MAGIC;
2216 }
2217
2218 static int ixgbe_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2219 {
2220         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2221
2222         if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
2223                 return -EOPNOTSUPP;
2224
2225         if (ixgbe_wol_exclusion(adapter, wol))
2226                 return wol->wolopts ? -EOPNOTSUPP : 0;
2227
2228         adapter->wol = 0;
2229
2230         if (wol->wolopts & WAKE_UCAST)
2231                 adapter->wol |= IXGBE_WUFC_EX;
2232         if (wol->wolopts & WAKE_MCAST)
2233                 adapter->wol |= IXGBE_WUFC_MC;
2234         if (wol->wolopts & WAKE_BCAST)
2235                 adapter->wol |= IXGBE_WUFC_BC;
2236         if (wol->wolopts & WAKE_MAGIC)
2237                 adapter->wol |= IXGBE_WUFC_MAG;
2238
2239         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
2240
2241         return 0;
2242 }
2243
2244 static int ixgbe_nway_reset(struct net_device *netdev)
2245 {
2246         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2247
2248         if (netif_running(netdev))
2249                 ixgbe_reinit_locked(adapter);
2250
2251         return 0;
2252 }
2253
2254 static int ixgbe_set_phys_id(struct net_device *netdev,
2255                              enum ethtool_phys_id_state state)
2256 {
2257         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2258         struct ixgbe_hw *hw = &adapter->hw;
2259
2260         if (!hw->mac.ops.led_on || !hw->mac.ops.led_off)
2261                 return -EOPNOTSUPP;
2262
2263         switch (state) {
2264         case ETHTOOL_ID_ACTIVE:
2265                 adapter->led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
2266                 return 2;
2267
2268         case ETHTOOL_ID_ON:
2269                 hw->mac.ops.led_on(hw, hw->mac.led_link_act);
2270                 break;
2271
2272         case ETHTOOL_ID_OFF:
2273                 hw->mac.ops.led_off(hw, hw->mac.led_link_act);
2274                 break;
2275
2276         case ETHTOOL_ID_INACTIVE:
2277                 /* Restore LED settings */
2278                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_LEDCTL, adapter->led_reg);
2279                 break;
2280         }
2281
2282         return 0;
2283 }
2284
2285 static int ixgbe_get_coalesce(struct net_device *netdev,
2286                               struct ethtool_coalesce *ec)
2287 {
2288         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2289
2290         /* only valid if in constant ITR mode */
2291         if (adapter->rx_itr_setting <= 1)
2292                 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
2293         else
2294                 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
2295
2296         /* if in mixed tx/rx queues per vector mode, report only rx settings */
2297         if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
2298                 return 0;
2299
2300         /* only valid if in constant ITR mode */
2301         if (adapter->tx_itr_setting <= 1)
2302                 ec->tx_coalesce_usecs = adapter->tx_itr_setting;
2303         else
2304                 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
2305
2306         return 0;
2307 }
2308
2309 /*
2310  * this function must be called before setting the new value of
2311  * rx_itr_setting
2312  */
2313 static bool ixgbe_update_rsc(struct ixgbe_adapter *adapter)
2314 {
2315         struct net_device *netdev = adapter->netdev;
2316
2317         /* nothing to do if LRO or RSC are not enabled */
2318         if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) ||
2319             !(netdev->features & NETIF_F_LRO))
2320                 return false;
2321
2322         /* check the feature flag value and enable RSC if necessary */
2323         if (adapter->rx_itr_setting == 1 ||
2324             adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) {
2325                 if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) {
2326                         adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
2327                         e_info(probe, "rx-usecs value high enough to re-enable RSC\n");
2328                         return true;
2329                 }
2330         /* if interrupt rate is too high then disable RSC */
2331         } else if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
2332                 adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED;
2333                 e_info(probe, "rx-usecs set too low, disabling RSC\n");
2334                 return true;
2335         }
2336         return false;
2337 }
2338
2339 static int ixgbe_set_coalesce(struct net_device *netdev,
2340                               struct ethtool_coalesce *ec)
2341 {
2342         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2343         struct ixgbe_q_vector *q_vector;
2344         int i;
2345         u16 tx_itr_param, rx_itr_param, tx_itr_prev;
2346         bool need_reset = false;
2347
2348         if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) {
2349                 /* reject Tx specific changes in case of mixed RxTx vectors */
2350                 if (ec->tx_coalesce_usecs)
2351                         return -EINVAL;
2352                 tx_itr_prev = adapter->rx_itr_setting;
2353         } else {
2354                 tx_itr_prev = adapter->tx_itr_setting;
2355         }
2356
2357         if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
2358             (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
2359                 return -EINVAL;
2360
2361         if (ec->rx_coalesce_usecs > 1)
2362                 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
2363         else
2364                 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
2365
2366         if (adapter->rx_itr_setting == 1)
2367                 rx_itr_param = IXGBE_20K_ITR;
2368         else
2369                 rx_itr_param = adapter->rx_itr_setting;
2370
2371         if (ec->tx_coalesce_usecs > 1)
2372                 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
2373         else
2374                 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
2375
2376         if (adapter->tx_itr_setting == 1)
2377                 tx_itr_param = IXGBE_12K_ITR;
2378         else
2379                 tx_itr_param = adapter->tx_itr_setting;
2380
2381         /* mixed Rx/Tx */
2382         if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
2383                 adapter->tx_itr_setting = adapter->rx_itr_setting;
2384
2385         /* detect ITR changes that require update of TXDCTL.WTHRESH */
2386         if ((adapter->tx_itr_setting != 1) &&
2387             (adapter->tx_itr_setting < IXGBE_100K_ITR)) {
2388                 if ((tx_itr_prev == 1) ||
2389                     (tx_itr_prev >= IXGBE_100K_ITR))
2390                         need_reset = true;
2391         } else {
2392                 if ((tx_itr_prev != 1) &&
2393                     (tx_itr_prev < IXGBE_100K_ITR))
2394                         need_reset = true;
2395         }
2396
2397         /* check the old value and enable RSC if necessary */
2398         need_reset |= ixgbe_update_rsc(adapter);
2399
2400         for (i = 0; i < adapter->num_q_vectors; i++) {
2401                 q_vector = adapter->q_vector[i];
2402                 if (q_vector->tx.count && !q_vector->rx.count)
2403                         /* tx only */
2404                         q_vector->itr = tx_itr_param;
2405                 else
2406                         /* rx only or mixed */
2407                         q_vector->itr = rx_itr_param;
2408                 ixgbe_write_eitr(q_vector);
2409         }
2410
2411         /*
2412          * do reset here at the end to make sure EITR==0 case is handled
2413          * correctly w.r.t stopping tx, and changing TXDCTL.WTHRESH settings
2414          * also locks in RSC enable/disable which requires reset
2415          */
2416         if (need_reset)
2417                 ixgbe_do_reset(netdev);
2418
2419         return 0;
2420 }
2421
2422 static int ixgbe_get_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2423                                         struct ethtool_rxnfc *cmd)
2424 {
2425         union ixgbe_atr_input *mask = &adapter->fdir_mask;
2426         struct ethtool_rx_flow_spec *fsp =
2427                 (struct ethtool_rx_flow_spec *)&cmd->fs;
2428         struct hlist_node *node2;
2429         struct ixgbe_fdir_filter *rule = NULL;
2430
2431         /* report total rule count */
2432         cmd->data = (1024 << adapter->fdir_pballoc) - 2;
2433
2434         hlist_for_each_entry_safe(rule, node2,
2435                                   &adapter->fdir_filter_list, fdir_node) {
2436                 if (fsp->location <= rule->sw_idx)
2437                         break;
2438         }
2439
2440         if (!rule || fsp->location != rule->sw_idx)
2441                 return -EINVAL;
2442
2443         /* fill out the flow spec entry */
2444
2445         /* set flow type field */
2446         switch (rule->filter.formatted.flow_type) {
2447         case IXGBE_ATR_FLOW_TYPE_TCPV4:
2448                 fsp->flow_type = TCP_V4_FLOW;
2449                 break;
2450         case IXGBE_ATR_FLOW_TYPE_UDPV4:
2451                 fsp->flow_type = UDP_V4_FLOW;
2452                 break;
2453         case IXGBE_ATR_FLOW_TYPE_SCTPV4:
2454                 fsp->flow_type = SCTP_V4_FLOW;
2455                 break;
2456         case IXGBE_ATR_FLOW_TYPE_IPV4:
2457                 fsp->flow_type = IP_USER_FLOW;
2458                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2459                 fsp->h_u.usr_ip4_spec.proto = 0;
2460                 fsp->m_u.usr_ip4_spec.proto = 0;
2461                 break;
2462         default:
2463                 return -EINVAL;
2464         }
2465
2466         fsp->h_u.tcp_ip4_spec.psrc = rule->filter.formatted.src_port;
2467         fsp->m_u.tcp_ip4_spec.psrc = mask->formatted.src_port;
2468         fsp->h_u.tcp_ip4_spec.pdst = rule->filter.formatted.dst_port;
2469         fsp->m_u.tcp_ip4_spec.pdst = mask->formatted.dst_port;
2470         fsp->h_u.tcp_ip4_spec.ip4src = rule->filter.formatted.src_ip[0];
2471         fsp->m_u.tcp_ip4_spec.ip4src = mask->formatted.src_ip[0];
2472         fsp->h_u.tcp_ip4_spec.ip4dst = rule->filter.formatted.dst_ip[0];
2473         fsp->m_u.tcp_ip4_spec.ip4dst = mask->formatted.dst_ip[0];
2474         fsp->h_ext.vlan_tci = rule->filter.formatted.vlan_id;
2475         fsp->m_ext.vlan_tci = mask->formatted.vlan_id;
2476         fsp->h_ext.vlan_etype = rule->filter.formatted.flex_bytes;
2477         fsp->m_ext.vlan_etype = mask->formatted.flex_bytes;
2478         fsp->h_ext.data[1] = htonl(rule->filter.formatted.vm_pool);
2479         fsp->m_ext.data[1] = htonl(mask->formatted.vm_pool);
2480         fsp->flow_type |= FLOW_EXT;
2481
2482         /* record action */
2483         if (rule->action == IXGBE_FDIR_DROP_QUEUE)
2484                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2485         else
2486                 fsp->ring_cookie = rule->action;
2487
2488         return 0;
2489 }
2490
2491 static int ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter *adapter,
2492                                       struct ethtool_rxnfc *cmd,
2493                                       u32 *rule_locs)
2494 {
2495         struct hlist_node *node2;
2496         struct ixgbe_fdir_filter *rule;
2497         int cnt = 0;
2498
2499         /* report total rule count */
2500         cmd->data = (1024 << adapter->fdir_pballoc) - 2;
2501
2502         hlist_for_each_entry_safe(rule, node2,
2503                                   &adapter->fdir_filter_list, fdir_node) {
2504                 if (cnt == cmd->rule_cnt)
2505                         return -EMSGSIZE;
2506                 rule_locs[cnt] = rule->sw_idx;
2507                 cnt++;
2508         }
2509
2510         cmd->rule_cnt = cnt;
2511
2512         return 0;
2513 }
2514
2515 static int ixgbe_get_rss_hash_opts(struct ixgbe_adapter *adapter,
2516                                    struct ethtool_rxnfc *cmd)
2517 {
2518         cmd->data = 0;
2519
2520         /* Report default options for RSS on ixgbe */
2521         switch (cmd->flow_type) {
2522         case TCP_V4_FLOW:
2523                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2524                 /* fallthrough */
2525         case UDP_V4_FLOW:
2526                 if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP)
2527                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2528                 /* fallthrough */
2529         case SCTP_V4_FLOW:
2530         case AH_ESP_V4_FLOW:
2531         case AH_V4_FLOW:
2532         case ESP_V4_FLOW:
2533         case IPV4_FLOW:
2534                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2535                 break;
2536         case TCP_V6_FLOW:
2537                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2538                 /* fallthrough */
2539         case UDP_V6_FLOW:
2540                 if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
2541                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2542                 /* fallthrough */
2543         case SCTP_V6_FLOW:
2544         case AH_ESP_V6_FLOW:
2545         case AH_V6_FLOW:
2546         case ESP_V6_FLOW:
2547         case IPV6_FLOW:
2548                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2549                 break;
2550         default:
2551                 return -EINVAL;
2552         }
2553
2554         return 0;
2555 }
2556
2557 static int ixgbe_rss_indir_tbl_max(struct ixgbe_adapter *adapter)
2558 {
2559         if (adapter->hw.mac.type < ixgbe_mac_X550)
2560                 return 16;
2561         else
2562                 return 64;
2563 }
2564
2565 static int ixgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
2566                            u32 *rule_locs)
2567 {
2568         struct ixgbe_adapter *adapter = netdev_priv(dev);
2569         int ret = -EOPNOTSUPP;
2570
2571         switch (cmd->cmd) {
2572         case ETHTOOL_GRXRINGS:
2573                 cmd->data = min_t(int, adapter->num_rx_queues,
2574                                   ixgbe_rss_indir_tbl_max(adapter));
2575                 ret = 0;
2576                 break;
2577         case ETHTOOL_GRXCLSRLCNT:
2578                 cmd->rule_cnt = adapter->fdir_filter_count;
2579                 ret = 0;
2580                 break;
2581         case ETHTOOL_GRXCLSRULE:
2582                 ret = ixgbe_get_ethtool_fdir_entry(adapter, cmd);
2583                 break;
2584         case ETHTOOL_GRXCLSRLALL:
2585                 ret = ixgbe_get_ethtool_fdir_all(adapter, cmd, rule_locs);
2586                 break;
2587         case ETHTOOL_GRXFH:
2588                 ret = ixgbe_get_rss_hash_opts(adapter, cmd);
2589                 break;
2590         default:
2591                 break;
2592         }
2593
2594         return ret;
2595 }
2596
2597 int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2598                                     struct ixgbe_fdir_filter *input,
2599                                     u16 sw_idx)
2600 {
2601         struct ixgbe_hw *hw = &adapter->hw;
2602         struct hlist_node *node2;
2603         struct ixgbe_fdir_filter *rule, *parent;
2604         int err = -EINVAL;
2605
2606         parent = NULL;
2607         rule = NULL;
2608
2609         hlist_for_each_entry_safe(rule, node2,
2610                                   &adapter->fdir_filter_list, fdir_node) {
2611                 /* hash found, or no matching entry */
2612                 if (rule->sw_idx >= sw_idx)
2613                         break;
2614                 parent = rule;
2615         }
2616
2617         /* if there is an old rule occupying our place remove it */
2618         if (rule && (rule->sw_idx == sw_idx)) {
2619                 if (!input || (rule->filter.formatted.bkt_hash !=
2620                                input->filter.formatted.bkt_hash)) {
2621                         err = ixgbe_fdir_erase_perfect_filter_82599(hw,
2622                                                                 &rule->filter,
2623                                                                 sw_idx);
2624                 }
2625
2626                 hlist_del(&rule->fdir_node);
2627                 kfree(rule);
2628                 adapter->fdir_filter_count--;
2629         }
2630
2631         /*
2632          * If no input this was a delete, err should be 0 if a rule was
2633          * successfully found and removed from the list else -EINVAL
2634          */
2635         if (!input)
2636                 return err;
2637
2638         /* initialize node and set software index */
2639         INIT_HLIST_NODE(&input->fdir_node);
2640
2641         /* add filter to the list */
2642         if (parent)
2643                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2644         else
2645                 hlist_add_head(&input->fdir_node,
2646                                &adapter->fdir_filter_list);
2647
2648         /* update counts */
2649         adapter->fdir_filter_count++;
2650
2651         return 0;
2652 }
2653
2654 static int ixgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec *fsp,
2655                                        u8 *flow_type)
2656 {
2657         switch (fsp->flow_type & ~FLOW_EXT) {
2658         case TCP_V4_FLOW:
2659                 *flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
2660                 break;
2661         case UDP_V4_FLOW:
2662                 *flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
2663                 break;
2664         case SCTP_V4_FLOW:
2665                 *flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
2666                 break;
2667         case IP_USER_FLOW:
2668                 switch (fsp->h_u.usr_ip4_spec.proto) {
2669                 case IPPROTO_TCP:
2670                         *flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
2671                         break;
2672                 case IPPROTO_UDP:
2673                         *flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
2674                         break;
2675                 case IPPROTO_SCTP:
2676                         *flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
2677                         break;
2678                 case 0:
2679                         if (!fsp->m_u.usr_ip4_spec.proto) {
2680                                 *flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
2681                                 break;
2682                         }
2683                         /* fall through */
2684                 default:
2685                         return 0;
2686                 }
2687                 break;
2688         default:
2689                 return 0;
2690         }
2691
2692         return 1;
2693 }
2694
2695 static int ixgbe_add_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2696                                         struct ethtool_rxnfc *cmd)
2697 {
2698         struct ethtool_rx_flow_spec *fsp =
2699                 (struct ethtool_rx_flow_spec *)&cmd->fs;
2700         struct ixgbe_hw *hw = &adapter->hw;
2701         struct ixgbe_fdir_filter *input;
2702         union ixgbe_atr_input mask;
2703         u8 queue;
2704         int err;
2705
2706         if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))
2707                 return -EOPNOTSUPP;
2708
2709         /* ring_cookie is a masked into a set of queues and ixgbe pools or
2710          * we use the drop index.
2711          */
2712         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
2713                 queue = IXGBE_FDIR_DROP_QUEUE;
2714         } else {
2715                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
2716                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
2717
2718                 if (!vf && (ring >= adapter->num_rx_queues))
2719                         return -EINVAL;
2720                 else if (vf &&
2721                          ((vf > adapter->num_vfs) ||
2722                            ring >= adapter->num_rx_queues_per_pool))
2723                         return -EINVAL;
2724
2725                 /* Map the ring onto the absolute queue index */
2726                 if (!vf)
2727                         queue = adapter->rx_ring[ring]->reg_idx;
2728                 else
2729                         queue = ((vf - 1) *
2730                                 adapter->num_rx_queues_per_pool) + ring;
2731         }
2732
2733         /* Don't allow indexes to exist outside of available space */
2734         if (fsp->location >= ((1024 << adapter->fdir_pballoc) - 2)) {
2735                 e_err(drv, "Location out of range\n");
2736                 return -EINVAL;
2737         }
2738
2739         input = kzalloc(sizeof(*input), GFP_ATOMIC);
2740         if (!input)
2741                 return -ENOMEM;
2742
2743         memset(&mask, 0, sizeof(union ixgbe_atr_input));
2744
2745         /* set SW index */
2746         input->sw_idx = fsp->location;
2747
2748         /* record flow type */
2749         if (!ixgbe_flowspec_to_flow_type(fsp,
2750                                          &input->filter.formatted.flow_type)) {
2751                 e_err(drv, "Unrecognized flow type\n");
2752                 goto err_out;
2753         }
2754
2755         mask.formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
2756                                    IXGBE_ATR_L4TYPE_MASK;
2757
2758         if (input->filter.formatted.flow_type == IXGBE_ATR_FLOW_TYPE_IPV4)
2759                 mask.formatted.flow_type &= IXGBE_ATR_L4TYPE_IPV6_MASK;
2760
2761         /* Copy input into formatted structures */
2762         input->filter.formatted.src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2763         mask.formatted.src_ip[0] = fsp->m_u.tcp_ip4_spec.ip4src;
2764         input->filter.formatted.dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2765         mask.formatted.dst_ip[0] = fsp->m_u.tcp_ip4_spec.ip4dst;
2766         input->filter.formatted.src_port = fsp->h_u.tcp_ip4_spec.psrc;
2767         mask.formatted.src_port = fsp->m_u.tcp_ip4_spec.psrc;
2768         input->filter.formatted.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
2769         mask.formatted.dst_port = fsp->m_u.tcp_ip4_spec.pdst;
2770
2771         if (fsp->flow_type & FLOW_EXT) {
2772                 input->filter.formatted.vm_pool =
2773                                 (unsigned char)ntohl(fsp->h_ext.data[1]);
2774                 mask.formatted.vm_pool =
2775                                 (unsigned char)ntohl(fsp->m_ext.data[1]);
2776                 input->filter.formatted.vlan_id = fsp->h_ext.vlan_tci;
2777                 mask.formatted.vlan_id = fsp->m_ext.vlan_tci;
2778                 input->filter.formatted.flex_bytes =
2779                                                 fsp->h_ext.vlan_etype;
2780                 mask.formatted.flex_bytes = fsp->m_ext.vlan_etype;
2781         }
2782
2783         /* determine if we need to drop or route the packet */
2784         if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2785                 input->action = IXGBE_FDIR_DROP_QUEUE;
2786         else
2787                 input->action = fsp->ring_cookie;
2788
2789         spin_lock(&adapter->fdir_perfect_lock);
2790
2791         if (hlist_empty(&adapter->fdir_filter_list)) {
2792                 /* save mask and program input mask into HW */
2793                 memcpy(&adapter->fdir_mask, &mask, sizeof(mask));
2794                 err = ixgbe_fdir_set_input_mask_82599(hw, &mask);
2795                 if (err) {
2796                         e_err(drv, "Error writing mask\n");
2797                         goto err_out_w_lock;
2798                 }
2799         } else if (memcmp(&adapter->fdir_mask, &mask, sizeof(mask))) {
2800                 e_err(drv, "Only one mask supported per port\n");
2801                 goto err_out_w_lock;
2802         }
2803
2804         /* apply mask and compute/store hash */
2805         ixgbe_atr_compute_perfect_hash_82599(&input->filter, &mask);
2806
2807         /* program filters to filter memory */
2808         err = ixgbe_fdir_write_perfect_filter_82599(hw,
2809                                 &input->filter, input->sw_idx, queue);
2810         if (err)
2811                 goto err_out_w_lock;
2812
2813         ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);
2814
2815         spin_unlock(&adapter->fdir_perfect_lock);
2816
2817         return err;
2818 err_out_w_lock:
2819         spin_unlock(&adapter->fdir_perfect_lock);
2820 err_out:
2821         kfree(input);
2822         return -EINVAL;
2823 }
2824
2825 static int ixgbe_del_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
2826                                         struct ethtool_rxnfc *cmd)
2827 {
2828         struct ethtool_rx_flow_spec *fsp =
2829                 (struct ethtool_rx_flow_spec *)&cmd->fs;
2830         int err;
2831
2832         spin_lock(&adapter->fdir_perfect_lock);
2833         err = ixgbe_update_ethtool_fdir_entry(adapter, NULL, fsp->location);
2834         spin_unlock(&adapter->fdir_perfect_lock);
2835
2836         return err;
2837 }
2838
2839 #define UDP_RSS_FLAGS (IXGBE_FLAG2_RSS_FIELD_IPV4_UDP | \
2840                        IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
2841 static int ixgbe_set_rss_hash_opt(struct ixgbe_adapter *adapter,
2842                                   struct ethtool_rxnfc *nfc)
2843 {
2844         u32 flags2 = adapter->flags2;
2845
2846         /*
2847          * RSS does not support anything other than hashing
2848          * to queues on src and dst IPs and ports
2849          */
2850         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2851                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
2852                 return -EINVAL;
2853
2854         switch (nfc->flow_type) {
2855         case TCP_V4_FLOW:
2856         case TCP_V6_FLOW:
2857                 if (!(nfc->data & RXH_IP_SRC) ||
2858                     !(nfc->data & RXH_IP_DST) ||
2859                     !(nfc->data & RXH_L4_B_0_1) ||
2860                     !(nfc->data & RXH_L4_B_2_3))
2861                         return -EINVAL;
2862                 break;
2863         case UDP_V4_FLOW:
2864                 if (!(nfc->data & RXH_IP_SRC) ||
2865                     !(nfc->data & RXH_IP_DST))
2866                         return -EINVAL;
2867                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2868                 case 0:
2869                         flags2 &= ~IXGBE_FLAG2_RSS_FIELD_IPV4_UDP;
2870                         break;
2871                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2872                         flags2 |= IXGBE_FLAG2_RSS_FIELD_IPV4_UDP;
2873                         break;
2874                 default:
2875                         return -EINVAL;
2876                 }
2877                 break;
2878         case UDP_V6_FLOW:
2879                 if (!(nfc->data & RXH_IP_SRC) ||
2880                     !(nfc->data & RXH_IP_DST))
2881                         return -EINVAL;
2882                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2883                 case 0:
2884                         flags2 &= ~IXGBE_FLAG2_RSS_FIELD_IPV6_UDP;
2885                         break;
2886                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2887                         flags2 |= IXGBE_FLAG2_RSS_FIELD_IPV6_UDP;
2888                         break;
2889                 default:
2890                         return -EINVAL;
2891                 }
2892                 break;
2893         case AH_ESP_V4_FLOW:
2894         case AH_V4_FLOW:
2895         case ESP_V4_FLOW:
2896         case SCTP_V4_FLOW:
2897         case AH_ESP_V6_FLOW:
2898         case AH_V6_FLOW:
2899         case ESP_V6_FLOW:
2900         case SCTP_V6_FLOW:
2901                 if (!(nfc->data & RXH_IP_SRC) ||
2902                     !(nfc->data & RXH_IP_DST) ||
2903                     (nfc->data & RXH_L4_B_0_1) ||
2904                     (nfc->data & RXH_L4_B_2_3))
2905                         return -EINVAL;
2906                 break;
2907         default:
2908                 return -EINVAL;
2909         }
2910
2911         /* if we changed something we need to update flags */
2912         if (flags2 != adapter->flags2) {
2913                 struct ixgbe_hw *hw = &adapter->hw;
2914                 u32 mrqc;
2915                 unsigned int pf_pool = adapter->num_vfs;
2916
2917                 if ((hw->mac.type >= ixgbe_mac_X550) &&
2918                     (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
2919                         mrqc = IXGBE_READ_REG(hw, IXGBE_PFVFMRQC(pf_pool));
2920                 else
2921                         mrqc = IXGBE_READ_REG(hw, IXGBE_MRQC);
2922
2923                 if ((flags2 & UDP_RSS_FLAGS) &&
2924                     !(adapter->flags2 & UDP_RSS_FLAGS))
2925                         e_warn(drv, "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
2926
2927                 adapter->flags2 = flags2;
2928
2929                 /* Perform hash on these packet types */
2930                 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4
2931                       | IXGBE_MRQC_RSS_FIELD_IPV4_TCP
2932                       | IXGBE_MRQC_RSS_FIELD_IPV6
2933                       | IXGBE_MRQC_RSS_FIELD_IPV6_TCP;
2934
2935                 mrqc &= ~(IXGBE_MRQC_RSS_FIELD_IPV4_UDP |
2936                           IXGBE_MRQC_RSS_FIELD_IPV6_UDP);
2937
2938                 if (flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP)
2939                         mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP;
2940
2941                 if (flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP)
2942                         mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
2943
2944                 if ((hw->mac.type >= ixgbe_mac_X550) &&
2945                     (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
2946                         IXGBE_WRITE_REG(hw, IXGBE_PFVFMRQC(pf_pool), mrqc);
2947                 else
2948                         IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
2949         }
2950
2951         return 0;
2952 }
2953
2954 static int ixgbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
2955 {
2956         struct ixgbe_adapter *adapter = netdev_priv(dev);
2957         int ret = -EOPNOTSUPP;
2958
2959         switch (cmd->cmd) {
2960         case ETHTOOL_SRXCLSRLINS:
2961                 ret = ixgbe_add_ethtool_fdir_entry(adapter, cmd);
2962                 break;
2963         case ETHTOOL_SRXCLSRLDEL:
2964                 ret = ixgbe_del_ethtool_fdir_entry(adapter, cmd);
2965                 break;
2966         case ETHTOOL_SRXFH:
2967                 ret = ixgbe_set_rss_hash_opt(adapter, cmd);
2968                 break;
2969         default:
2970                 break;
2971         }
2972
2973         return ret;
2974 }
2975
2976 static u32 ixgbe_get_rxfh_key_size(struct net_device *netdev)
2977 {
2978         return IXGBE_RSS_KEY_SIZE;
2979 }
2980
2981 static u32 ixgbe_rss_indir_size(struct net_device *netdev)
2982 {
2983         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2984
2985         return ixgbe_rss_indir_tbl_entries(adapter);
2986 }
2987
2988 static void ixgbe_get_reta(struct ixgbe_adapter *adapter, u32 *indir)
2989 {
2990         int i, reta_size = ixgbe_rss_indir_tbl_entries(adapter);
2991         u16 rss_m = adapter->ring_feature[RING_F_RSS].mask;
2992
2993         if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
2994                 rss_m = adapter->ring_feature[RING_F_RSS].indices - 1;
2995
2996         for (i = 0; i < reta_size; i++)
2997                 indir[i] = adapter->rss_indir_tbl[i] & rss_m;
2998 }
2999
3000 static int ixgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
3001                           u8 *hfunc)
3002 {
3003         struct ixgbe_adapter *adapter = netdev_priv(netdev);
3004
3005         if (hfunc)
3006                 *hfunc = ETH_RSS_HASH_TOP;
3007
3008         if (indir)
3009                 ixgbe_get_reta(adapter, indir);
3010
3011         if (key)
3012                 memcpy(key, adapter->rss_key, ixgbe_get_rxfh_key_size(netdev));
3013
3014         return 0;
3015 }
3016
3017 static int ixgbe_set_rxfh(struct net_device *netdev, const u32 *indir,
3018                           const u8 *key, const u8 hfunc)
3019 {
3020         struct ixgbe_adapter *adapter = netdev_priv(netdev);
3021         int i;
3022         u32 reta_entries = ixgbe_rss_indir_tbl_entries(adapter);
3023
3024         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
3025                 return -EOPNOTSUPP;
3026
3027         /* Fill out the redirection table */
3028         if (indir) {
3029                 int max_queues = min_t(int, adapter->num_rx_queues,
3030                                        ixgbe_rss_indir_tbl_max(adapter));
3031
3032                 /*Allow at least 2 queues w/ SR-IOV.*/
3033                 if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) &&
3034                     (max_queues < 2))
3035                         max_queues = 2;
3036
3037                 /* Verify user input. */
3038                 for (i = 0; i < reta_entries; i++)
3039                         if (indir[i] >= max_queues)
3040                                 return -EINVAL;
3041
3042                 for (i = 0; i < reta_entries; i++)
3043                         adapter->rss_indir_tbl[i] = indir[i];
3044         }
3045
3046         /* Fill out the rss hash key */
3047         if (key) {
3048                 memcpy(adapter->rss_key, key, ixgbe_get_rxfh_key_size(netdev));
3049                 ixgbe_store_key(adapter);
3050         }
3051
3052         ixgbe_store_reta(adapter);
3053
3054         return 0;
3055 }
3056
3057 static int ixgbe_get_ts_info(struct net_device *dev,
3058                              struct ethtool_ts_info *info)
3059 {
3060         struct ixgbe_adapter *adapter = netdev_priv(dev);
3061
3062         /* we always support timestamping disabled */
3063         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
3064
3065         switch (adapter->hw.mac.type) {
3066         case ixgbe_mac_X550:
3067         case ixgbe_mac_X550EM_x:
3068         case ixgbe_mac_x550em_a:
3069                 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
3070                 /* fallthrough */
3071         case ixgbe_mac_X540:
3072         case ixgbe_mac_82599EB:
3073                 info->so_timestamping =
3074                         SOF_TIMESTAMPING_TX_SOFTWARE |
3075                         SOF_TIMESTAMPING_RX_SOFTWARE |
3076                         SOF_TIMESTAMPING_SOFTWARE |
3077                         SOF_TIMESTAMPING_TX_HARDWARE |
3078                         SOF_TIMESTAMPING_RX_HARDWARE |
3079                         SOF_TIMESTAMPING_RAW_HARDWARE;
3080
3081                 if (adapter->ptp_clock)
3082                         info->phc_index = ptp_clock_index(adapter->ptp_clock);
3083                 else
3084                         info->phc_index = -1;
3085
3086                 info->tx_types =
3087                         BIT(HWTSTAMP_TX_OFF) |
3088                         BIT(HWTSTAMP_TX_ON);
3089
3090                 info->rx_filters |=
3091                         BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
3092                         BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
3093                         BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
3094                 break;
3095         default:
3096                 return ethtool_op_get_ts_info(dev, info);
3097         }
3098         return 0;
3099 }
3100
3101 static unsigned int ixgbe_max_channels(struct ixgbe_adapter *adapter)
3102 {
3103         unsigned int max_combined;
3104         u8 tcs = netdev_get_num_tc(adapter->netdev);
3105
3106         if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
3107                 /* We only support one q_vector without MSI-X */
3108                 max_combined = 1;
3109         } else if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) {
3110                 /* Limit value based on the queue mask */
3111                 max_combined = adapter->ring_feature[RING_F_RSS].mask + 1;
3112         } else if (tcs > 1) {
3113                 /* For DCB report channels per traffic class */
3114                 if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
3115                         /* 8 TC w/ 4 queues per TC */
3116                         max_combined = 4;
3117                 } else if (tcs > 4) {
3118                         /* 8 TC w/ 8 queues per TC */
3119                         max_combined = 8;
3120                 } else {
3121                         /* 4 TC w/ 16 queues per TC */
3122                         max_combined = 16;
3123                 }
3124         } else if (adapter->atr_sample_rate) {
3125                 /* support up to 64 queues with ATR */
3126                 max_combined = IXGBE_MAX_FDIR_INDICES;
3127         } else {
3128                 /* support up to 16 queues with RSS */
3129                 max_combined = ixgbe_max_rss_indices(adapter);
3130         }
3131
3132         return max_combined;
3133 }
3134
3135 static void ixgbe_get_channels(struct net_device *dev,
3136                                struct ethtool_channels *ch)
3137 {
3138         struct ixgbe_adapter *adapter = netdev_priv(dev);
3139
3140         /* report maximum channels */
3141         ch->max_combined = ixgbe_max_channels(adapter);
3142
3143         /* report info for other vector */
3144         if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
3145                 ch->max_other = NON_Q_VECTORS;
3146                 ch->other_count = NON_Q_VECTORS;
3147         }
3148
3149         /* record RSS queues */
3150         ch->combined_count = adapter->ring_feature[RING_F_RSS].indices;
3151
3152         /* nothing else to report if RSS is disabled */
3153         if (ch->combined_count == 1)
3154                 return;
3155
3156         /* we do not support ATR queueing if SR-IOV is enabled */
3157         if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
3158                 return;
3159
3160         /* same thing goes for being DCB enabled */
3161         if (netdev_get_num_tc(dev) > 1)
3162                 return;
3163
3164         /* if ATR is disabled we can exit */
3165         if (!adapter->atr_sample_rate)
3166                 return;
3167
3168         /* report flow director queues as maximum channels */
3169         ch->combined_count = adapter->ring_feature[RING_F_FDIR].indices;
3170 }
3171
3172 static int ixgbe_set_channels(struct net_device *dev,
3173                               struct ethtool_channels *ch)
3174 {
3175         struct ixgbe_adapter *adapter = netdev_priv(dev);
3176         unsigned int count = ch->combined_count;
3177         u8 max_rss_indices = ixgbe_max_rss_indices(adapter);
3178
3179         /* verify they are not requesting separate vectors */
3180         if (!count || ch->rx_count || ch->tx_count)
3181                 return -EINVAL;
3182
3183         /* verify other_count has not changed */
3184         if (ch->other_count != NON_Q_VECTORS)
3185                 return -EINVAL;
3186
3187         /* verify the number of channels does not exceed hardware limits */
3188         if (count > ixgbe_max_channels(adapter))
3189                 return -EINVAL;
3190
3191         /* update feature limits from largest to smallest supported values */
3192         adapter->ring_feature[RING_F_FDIR].limit = count;
3193
3194         /* cap RSS limit */
3195         if (count > max_rss_indices)
3196                 count = max_rss_indices;
3197         adapter->ring_feature[RING_F_RSS].limit = count;
3198
3199 #ifdef IXGBE_FCOE
3200         /* cap FCoE limit at 8 */
3201         if (count > IXGBE_FCRETA_SIZE)
3202                 count = IXGBE_FCRETA_SIZE;
3203         adapter->ring_feature[RING_F_FCOE].limit = count;
3204
3205 #endif
3206         /* use setup TC to update any traffic class queue mapping */
3207         return ixgbe_setup_tc(dev, netdev_get_num_tc(dev));
3208 }
3209
3210 static int ixgbe_get_module_info(struct net_device *dev,
3211                                        struct ethtool_modinfo *modinfo)
3212 {
3213         struct ixgbe_adapter *adapter = netdev_priv(dev);
3214         struct ixgbe_hw *hw = &adapter->hw;
3215         s32 status;
3216         u8 sff8472_rev, addr_mode;
3217         bool page_swap = false;
3218
3219         if (hw->phy.type == ixgbe_phy_fw)
3220                 return -ENXIO;
3221
3222         /* Check whether we support SFF-8472 or not */
3223         status = hw->phy.ops.read_i2c_eeprom(hw,
3224                                              IXGBE_SFF_SFF_8472_COMP,
3225                                              &sff8472_rev);
3226         if (status)
3227                 return -EIO;
3228
3229         /* addressing mode is not supported */
3230         status = hw->phy.ops.read_i2c_eeprom(hw,
3231                                              IXGBE_SFF_SFF_8472_SWAP,
3232                                              &addr_mode);
3233         if (status)
3234                 return -EIO;
3235
3236         if (addr_mode & IXGBE_SFF_ADDRESSING_MODE) {
3237                 e_err(drv, "Address change required to access page 0xA2, but not supported. Please report the module type to the driver maintainers.\n");
3238                 page_swap = true;
3239         }
3240
3241         if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap ||
3242             !(addr_mode & IXGBE_SFF_DDM_IMPLEMENTED)) {
3243                 /* We have a SFP, but it does not support SFF-8472 */
3244                 modinfo->type = ETH_MODULE_SFF_8079;
3245                 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3246         } else {
3247                 /* We have a SFP which supports a revision of SFF-8472. */
3248                 modinfo->type = ETH_MODULE_SFF_8472;
3249                 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
3250         }
3251
3252         return 0;
3253 }
3254
3255 static int ixgbe_get_module_eeprom(struct net_device *dev,
3256                                          struct ethtool_eeprom *ee,
3257                                          u8 *data)
3258 {
3259         struct ixgbe_adapter *adapter = netdev_priv(dev);
3260         struct ixgbe_hw *hw = &adapter->hw;
3261         s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
3262         u8 databyte = 0xFF;
3263         int i = 0;
3264
3265         if (ee->len == 0)
3266                 return -EINVAL;
3267
3268         if (hw->phy.type == ixgbe_phy_fw)
3269                 return -ENXIO;
3270
3271         for (i = ee->offset; i < ee->offset + ee->len; i++) {
3272                 /* I2C reads can take long time */
3273                 if (test_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
3274                         return -EBUSY;
3275
3276                 if (i < ETH_MODULE_SFF_8079_LEN)
3277                         status = hw->phy.ops.read_i2c_eeprom(hw, i, &databyte);
3278                 else
3279                         status = hw->phy.ops.read_i2c_sff8472(hw, i, &databyte);
3280
3281                 if (status)
3282                         return -EIO;
3283
3284                 data[i - ee->offset] = databyte;
3285         }
3286
3287         return 0;
3288 }
3289
3290 static const struct {
3291         ixgbe_link_speed mac_speed;
3292         u32 supported;
3293 } ixgbe_ls_map[] = {
3294         { IXGBE_LINK_SPEED_10_FULL, SUPPORTED_10baseT_Full },
3295         { IXGBE_LINK_SPEED_100_FULL, SUPPORTED_100baseT_Full },
3296         { IXGBE_LINK_SPEED_1GB_FULL, SUPPORTED_1000baseT_Full },
3297         { IXGBE_LINK_SPEED_2_5GB_FULL, SUPPORTED_2500baseX_Full },
3298         { IXGBE_LINK_SPEED_10GB_FULL, SUPPORTED_10000baseT_Full },
3299 };
3300
3301 static const struct {
3302         u32 lp_advertised;
3303         u32 mac_speed;
3304 } ixgbe_lp_map[] = {
3305         { FW_PHY_ACT_UD_2_100M_TX_EEE, SUPPORTED_100baseT_Full },
3306         { FW_PHY_ACT_UD_2_1G_T_EEE, SUPPORTED_1000baseT_Full },
3307         { FW_PHY_ACT_UD_2_10G_T_EEE, SUPPORTED_10000baseT_Full },
3308         { FW_PHY_ACT_UD_2_1G_KX_EEE, SUPPORTED_1000baseKX_Full },
3309         { FW_PHY_ACT_UD_2_10G_KX4_EEE, SUPPORTED_10000baseKX4_Full },
3310         { FW_PHY_ACT_UD_2_10G_KR_EEE, SUPPORTED_10000baseKR_Full},
3311 };
3312
3313 static int
3314 ixgbe_get_eee_fw(struct ixgbe_adapter *adapter, struct ethtool_eee *edata)
3315 {
3316         u32 info[FW_PHY_ACT_DATA_COUNT] = { 0 };
3317         struct ixgbe_hw *hw = &adapter->hw;
3318         s32 rc;
3319         u16 i;
3320
3321         rc = ixgbe_fw_phy_activity(hw, FW_PHY_ACT_UD_2, &info);
3322         if (rc)
3323                 return rc;
3324
3325         edata->lp_advertised = 0;
3326         for (i = 0; i < ARRAY_SIZE(ixgbe_lp_map); ++i) {
3327                 if (info[0] & ixgbe_lp_map[i].lp_advertised)
3328                         edata->lp_advertised |= ixgbe_lp_map[i].mac_speed;
3329         }
3330
3331         edata->supported = 0;
3332         for (i = 0; i < ARRAY_SIZE(ixgbe_ls_map); ++i) {
3333                 if (hw->phy.eee_speeds_supported & ixgbe_ls_map[i].mac_speed)
3334                         edata->supported |= ixgbe_ls_map[i].supported;
3335         }
3336
3337         edata->advertised = 0;
3338         for (i = 0; i < ARRAY_SIZE(ixgbe_ls_map); ++i) {
3339                 if (hw->phy.eee_speeds_advertised & ixgbe_ls_map[i].mac_speed)
3340                         edata->advertised |= ixgbe_ls_map[i].supported;
3341         }
3342
3343         edata->eee_enabled = !!edata->advertised;
3344         edata->tx_lpi_enabled = edata->eee_enabled;
3345         if (edata->advertised & edata->lp_advertised)
3346                 edata->eee_active = true;
3347
3348         return 0;
3349 }
3350
3351 static int ixgbe_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
3352 {
3353         struct ixgbe_adapter *adapter = netdev_priv(netdev);
3354         struct ixgbe_hw *hw = &adapter->hw;
3355
3356         if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
3357                 return -EOPNOTSUPP;
3358
3359         if (hw->phy.eee_speeds_supported && hw->phy.type == ixgbe_phy_fw)
3360                 return ixgbe_get_eee_fw(adapter, edata);
3361
3362         return -EOPNOTSUPP;
3363 }
3364
3365 static int ixgbe_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
3366 {
3367         struct ixgbe_adapter *adapter = netdev_priv(netdev);
3368         struct ixgbe_hw *hw = &adapter->hw;
3369         struct ethtool_eee eee_data;
3370         s32 ret_val;
3371
3372         if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
3373                 return -EOPNOTSUPP;
3374
3375         memset(&eee_data, 0, sizeof(struct ethtool_eee));
3376
3377         ret_val = ixgbe_get_eee(netdev, &eee_data);
3378         if (ret_val)
3379                 return ret_val;
3380
3381         if (eee_data.eee_enabled && !edata->eee_enabled) {
3382                 if (eee_data.tx_lpi_enabled != edata->tx_lpi_enabled) {
3383                         e_err(drv, "Setting EEE tx-lpi is not supported\n");
3384                         return -EINVAL;
3385                 }
3386
3387                 if (eee_data.tx_lpi_timer != edata->tx_lpi_timer) {
3388                         e_err(drv,
3389                               "Setting EEE Tx LPI timer is not supported\n");
3390                         return -EINVAL;
3391                 }
3392
3393                 if (eee_data.advertised != edata->advertised) {
3394                         e_err(drv,
3395                               "Setting EEE advertised speeds is not supported\n");
3396                         return -EINVAL;
3397                 }
3398         }
3399
3400         if (eee_data.eee_enabled != edata->eee_enabled) {
3401                 if (edata->eee_enabled) {
3402                         adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
3403                         hw->phy.eee_speeds_advertised =
3404                                                    hw->phy.eee_speeds_supported;
3405                 } else {
3406                         adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED;
3407                         hw->phy.eee_speeds_advertised = 0;
3408                 }
3409
3410                 /* reset link */
3411                 if (netif_running(netdev))
3412                         ixgbe_reinit_locked(adapter);
3413                 else
3414                         ixgbe_reset(adapter);
3415         }
3416
3417         return 0;
3418 }
3419
3420 static u32 ixgbe_get_priv_flags(struct net_device *netdev)
3421 {
3422         struct ixgbe_adapter *adapter = netdev_priv(netdev);
3423         u32 priv_flags = 0;
3424
3425         if (adapter->flags2 & IXGBE_FLAG2_RX_LEGACY)
3426                 priv_flags |= IXGBE_PRIV_FLAGS_LEGACY_RX;
3427
3428         return priv_flags;
3429 }
3430
3431 static int ixgbe_set_priv_flags(struct net_device *netdev, u32 priv_flags)
3432 {
3433         struct ixgbe_adapter *adapter = netdev_priv(netdev);
3434         unsigned int flags2 = adapter->flags2;
3435
3436         flags2 &= ~IXGBE_FLAG2_RX_LEGACY;
3437         if (priv_flags & IXGBE_PRIV_FLAGS_LEGACY_RX)
3438                 flags2 |= IXGBE_FLAG2_RX_LEGACY;
3439
3440         if (flags2 != adapter->flags2) {
3441                 adapter->flags2 = flags2;
3442
3443                 /* reset interface to repopulate queues */
3444                 if (netif_running(netdev))
3445                         ixgbe_reinit_locked(adapter);
3446         }
3447
3448         return 0;
3449 }
3450
3451 static const struct ethtool_ops ixgbe_ethtool_ops = {
3452         .get_drvinfo            = ixgbe_get_drvinfo,
3453         .get_regs_len           = ixgbe_get_regs_len,
3454         .get_regs               = ixgbe_get_regs,
3455         .get_wol                = ixgbe_get_wol,
3456         .set_wol                = ixgbe_set_wol,
3457         .nway_reset             = ixgbe_nway_reset,
3458         .get_link               = ethtool_op_get_link,
3459         .get_eeprom_len         = ixgbe_get_eeprom_len,
3460         .get_eeprom             = ixgbe_get_eeprom,
3461         .set_eeprom             = ixgbe_set_eeprom,
3462         .get_ringparam          = ixgbe_get_ringparam,
3463         .set_ringparam          = ixgbe_set_ringparam,
3464         .get_pauseparam         = ixgbe_get_pauseparam,
3465         .set_pauseparam         = ixgbe_set_pauseparam,
3466         .get_msglevel           = ixgbe_get_msglevel,
3467         .set_msglevel           = ixgbe_set_msglevel,
3468         .self_test              = ixgbe_diag_test,
3469         .get_strings            = ixgbe_get_strings,
3470         .set_phys_id            = ixgbe_set_phys_id,
3471         .get_sset_count         = ixgbe_get_sset_count,
3472         .get_ethtool_stats      = ixgbe_get_ethtool_stats,
3473         .get_coalesce           = ixgbe_get_coalesce,
3474         .set_coalesce           = ixgbe_set_coalesce,
3475         .get_rxnfc              = ixgbe_get_rxnfc,
3476         .set_rxnfc              = ixgbe_set_rxnfc,
3477         .get_rxfh_indir_size    = ixgbe_rss_indir_size,
3478         .get_rxfh_key_size      = ixgbe_get_rxfh_key_size,
3479         .get_rxfh               = ixgbe_get_rxfh,
3480         .set_rxfh               = ixgbe_set_rxfh,
3481         .get_eee                = ixgbe_get_eee,
3482         .set_eee                = ixgbe_set_eee,
3483         .get_channels           = ixgbe_get_channels,
3484         .set_channels           = ixgbe_set_channels,
3485         .get_priv_flags         = ixgbe_get_priv_flags,
3486         .set_priv_flags         = ixgbe_set_priv_flags,
3487         .get_ts_info            = ixgbe_get_ts_info,
3488         .get_module_info        = ixgbe_get_module_info,
3489         .get_module_eeprom      = ixgbe_get_module_eeprom,
3490         .get_link_ksettings     = ixgbe_get_link_ksettings,
3491         .set_link_ksettings     = ixgbe_set_link_ksettings,
3492 };
3493
3494 void ixgbe_set_ethtool_ops(struct net_device *netdev)
3495 {
3496         netdev->ethtool_ops = &ixgbe_ethtool_ops;
3497 }