drivers/net/ethernet/intel/ixgbevf/ethtool.c

   1 /*******************************************************************************
   2
   3   Intel 82599 Virtual Function driver
   4   Copyright(c) 1999 - 2009 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25
  26 *******************************************************************************/
  27
  28 /* ethtool support for ixgbevf */
  29
  30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  31
  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/if_vlan.h>
  40 #include <linux/uaccess.h>
  41
  42 #include "ixgbevf.h"
  43
  44 #define IXGBE_ALL_RAR_ENTRIES 16
  45
  46 #ifdef ETHTOOL_GSTATS
  47 struct ixgbe_stats {
  48         char stat_string[ETH_GSTRING_LEN];
  49         int sizeof_stat;
  50         int stat_offset;
  51         int base_stat_offset;
  52         int saved_reset_offset;
  53 };
  54
  55 #define IXGBEVF_STAT(m, b, r)  sizeof(((struct ixgbevf_adapter *)0)->m), \
  56                             offsetof(struct ixgbevf_adapter, m),         \
  57                             offsetof(struct ixgbevf_adapter, b),         \
  58                             offsetof(struct ixgbevf_adapter, r)
  59 static struct ixgbe_stats ixgbe_gstrings_stats[] = {
  60         {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
  61                                     stats.saved_reset_vfgprc)},
  62         {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
  63                                     stats.saved_reset_vfgptc)},
  64         {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
  65                                   stats.saved_reset_vfgorc)},
  66         {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
  67                                   stats.saved_reset_vfgotc)},
  68         {"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)},
  69         {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
  70                                    stats.saved_reset_vfmprc)},
  71         {"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base,
  72                                               zero_base)},
  73         {"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base,
  74                                                 zero_base)},
  75         {"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base,
  76                                               zero_base)},
  77         {"rx_header_split", IXGBEVF_STAT(rx_hdr_split, zero_base, zero_base)},
  78 };
  79
  80 #define IXGBE_QUEUE_STATS_LEN 0
  81 #define IXGBE_GLOBAL_STATS_LEN  ARRAY_SIZE(ixgbe_gstrings_stats)
  82
  83 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
  84 #endif /* ETHTOOL_GSTATS */
  85 #ifdef ETHTOOL_TEST
  86 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
  87         "Register test  (offline)",
  88         "Link test   (on/offline)"
  89 };
  90 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
  91 #endif /* ETHTOOL_TEST */
  92
  93 static int ixgbevf_get_settings(struct net_device *netdev,
  94                                 struct ethtool_cmd *ecmd)
  95 {
  96         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
  97         struct ixgbe_hw *hw = &adapter->hw;
  98         u32 link_speed = 0;
  99         bool link_up;
 100
 101         ecmd->supported = SUPPORTED_10000baseT_Full;
 102         ecmd->autoneg = AUTONEG_DISABLE;
 103         ecmd->transceiver = XCVR_DUMMY1;
 104         ecmd->port = -1;
 105
 106         hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
 107
 108         if (link_up) {
 109                 ethtool_cmd_speed_set(
 110                         ecmd,
 111                         (link_speed == IXGBE_LINK_SPEED_10GB_FULL) ?
 112                         SPEED_10000 : SPEED_1000);
 113                 ecmd->duplex = DUPLEX_FULL;
 114         } else {
 115                 ethtool_cmd_speed_set(ecmd, -1);
 116                 ecmd->duplex = -1;
 117         }
 118
 119         return 0;
 120 }
 121
 122 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
 123 {
 124         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 125         return adapter->msg_enable;
 126 }
 127
 128 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
 129 {
 130         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 131         adapter->msg_enable = data;
 132 }
 133
 134 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
 135
 136 static char *ixgbevf_reg_names[] = {
 137         "IXGBE_VFCTRL",
 138         "IXGBE_VFSTATUS",
 139         "IXGBE_VFLINKS",
 140         "IXGBE_VFRXMEMWRAP",
 141         "IXGBE_VFFRTIMER",
 142         "IXGBE_VTEICR",
 143         "IXGBE_VTEICS",
 144         "IXGBE_VTEIMS",
 145         "IXGBE_VTEIMC",
 146         "IXGBE_VTEIAC",
 147         "IXGBE_VTEIAM",
 148         "IXGBE_VTEITR",
 149         "IXGBE_VTIVAR",
 150         "IXGBE_VTIVAR_MISC",
 151         "IXGBE_VFRDBAL0",
 152         "IXGBE_VFRDBAL1",
 153         "IXGBE_VFRDBAH0",
 154         "IXGBE_VFRDBAH1",
 155         "IXGBE_VFRDLEN0",
 156         "IXGBE_VFRDLEN1",
 157         "IXGBE_VFRDH0",
 158         "IXGBE_VFRDH1",
 159         "IXGBE_VFRDT0",
 160         "IXGBE_VFRDT1",
 161         "IXGBE_VFRXDCTL0",
 162         "IXGBE_VFRXDCTL1",
 163         "IXGBE_VFSRRCTL0",
 164         "IXGBE_VFSRRCTL1",
 165         "IXGBE_VFPSRTYPE",
 166         "IXGBE_VFTDBAL0",
 167         "IXGBE_VFTDBAL1",
 168         "IXGBE_VFTDBAH0",
 169         "IXGBE_VFTDBAH1",
 170         "IXGBE_VFTDLEN0",
 171         "IXGBE_VFTDLEN1",
 172         "IXGBE_VFTDH0",
 173         "IXGBE_VFTDH1",
 174         "IXGBE_VFTDT0",
 175         "IXGBE_VFTDT1",
 176         "IXGBE_VFTXDCTL0",
 177         "IXGBE_VFTXDCTL1",
 178         "IXGBE_VFTDWBAL0",
 179         "IXGBE_VFTDWBAL1",
 180         "IXGBE_VFTDWBAH0",
 181         "IXGBE_VFTDWBAH1"
 182 };
 183
 184
 185 static int ixgbevf_get_regs_len(struct net_device *netdev)
 186 {
 187         return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32);
 188 }
 189
 190 static void ixgbevf_get_regs(struct net_device *netdev,
 191                              struct ethtool_regs *regs,
 192                              void *p)
 193 {
 194         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 195         struct ixgbe_hw *hw = &adapter->hw;
 196         u32 *regs_buff = p;
 197         u32 regs_len = ixgbevf_get_regs_len(netdev);
 198         u8 i;
 199
 200         memset(p, 0, regs_len);
 201
 202         regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
 203
 204         /* General Registers */
 205         regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
 206         regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
 207         regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 208         regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
 209         regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
 210
 211         /* Interrupt */
 212         /* don't read EICR because it can clear interrupt causes, instead
 213          * read EICS which is a shadow but doesn't clear EICR */
 214         regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 215         regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 216         regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
 217         regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
 218         regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
 219         regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
 220         regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
 221         regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
 222         regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
 223
 224         /* Receive DMA */
 225         for (i = 0; i < 2; i++)
 226                 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
 227         for (i = 0; i < 2; i++)
 228                 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
 229         for (i = 0; i < 2; i++)
 230                 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
 231         for (i = 0; i < 2; i++)
 232                 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
 233         for (i = 0; i < 2; i++)
 234                 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
 235         for (i = 0; i < 2; i++)
 236                 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
 237         for (i = 0; i < 2; i++)
 238                 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
 239
 240         /* Receive */
 241         regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
 242
 243         /* Transmit */
 244         for (i = 0; i < 2; i++)
 245                 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
 246         for (i = 0; i < 2; i++)
 247                 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
 248         for (i = 0; i < 2; i++)
 249                 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
 250         for (i = 0; i < 2; i++)
 251                 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
 252         for (i = 0; i < 2; i++)
 253                 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
 254         for (i = 0; i < 2; i++)
 255                 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
 256         for (i = 0; i < 2; i++)
 257                 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
 258         for (i = 0; i < 2; i++)
 259                 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
 260
 261         for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++)
 262                 hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]);
 263 }
 264
 265 static void ixgbevf_get_drvinfo(struct net_device *netdev,
 266                                 struct ethtool_drvinfo *drvinfo)
 267 {
 268         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 269
 270         strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
 271         strlcpy(drvinfo->version, ixgbevf_driver_version,
 272                 sizeof(drvinfo->version));
 273         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 274                 sizeof(drvinfo->bus_info));
 275 }
 276
 277 static void ixgbevf_get_ringparam(struct net_device *netdev,
 278                                   struct ethtool_ringparam *ring)
 279 {
 280         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 281         struct ixgbevf_ring *tx_ring = adapter->tx_ring;
 282         struct ixgbevf_ring *rx_ring = adapter->rx_ring;
 283
 284         ring->rx_max_pending = IXGBEVF_MAX_RXD;
 285         ring->tx_max_pending = IXGBEVF_MAX_TXD;
 286         ring->rx_pending = rx_ring->count;
 287         ring->tx_pending = tx_ring->count;
 288 }
 289
 290 static int ixgbevf_set_ringparam(struct net_device *netdev,
 291                                  struct ethtool_ringparam *ring)
 292 {
 293         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 294         struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
 295         int i, err = 0;
 296         u32 new_rx_count, new_tx_count;
 297
 298         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 299                 return -EINVAL;
 300
 301         new_rx_count = max(ring->rx_pending, (u32)IXGBEVF_MIN_RXD);
 302         new_rx_count = min(new_rx_count, (u32)IXGBEVF_MAX_RXD);
 303         new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
 304
 305         new_tx_count = max(ring->tx_pending, (u32)IXGBEVF_MIN_TXD);
 306         new_tx_count = min(new_tx_count, (u32)IXGBEVF_MAX_TXD);
 307         new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
 308
 309         if ((new_tx_count == adapter->tx_ring->count) &&
 310             (new_rx_count == adapter->rx_ring->count)) {
 311                 /* nothing to do */
 312                 return 0;
 313         }
 314
 315         while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
 316                 msleep(1);
 317
 318         /*
 319          * If the adapter isn't up and running then just set the
 320          * new parameters and scurry for the exits.
 321          */
 322         if (!netif_running(adapter->netdev)) {
 323                 for (i = 0; i < adapter->num_tx_queues; i++)
 324                         adapter->tx_ring[i].count = new_tx_count;
 325                 for (i = 0; i < adapter->num_rx_queues; i++)
 326                         adapter->rx_ring[i].count = new_rx_count;
 327                 adapter->tx_ring_count = new_tx_count;
 328                 adapter->rx_ring_count = new_rx_count;
 329                 goto clear_reset;
 330         }
 331
 332         tx_ring = kcalloc(adapter->num_tx_queues,
 333                           sizeof(struct ixgbevf_ring), GFP_KERNEL);
 334         if (!tx_ring) {
 335                 err = -ENOMEM;
 336                 goto clear_reset;
 337         }
 338
 339         rx_ring = kcalloc(adapter->num_rx_queues,
 340                           sizeof(struct ixgbevf_ring), GFP_KERNEL);
 341         if (!rx_ring) {
 342                 err = -ENOMEM;
 343                 goto err_rx_setup;
 344         }
 345
 346         ixgbevf_down(adapter);
 347
 348         memcpy(tx_ring, adapter->tx_ring,
 349                adapter->num_tx_queues * sizeof(struct ixgbevf_ring));
 350         for (i = 0; i < adapter->num_tx_queues; i++) {
 351                 tx_ring[i].count = new_tx_count;
 352                 err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]);
 353                 if (err) {
 354                         while (i) {
 355                                 i--;
 356                                 ixgbevf_free_tx_resources(adapter,
 357                                                           &tx_ring[i]);
 358                         }
 359                         goto err_tx_ring_setup;
 360                 }
 361                 tx_ring[i].v_idx = adapter->tx_ring[i].v_idx;
 362         }
 363
 364         memcpy(rx_ring, adapter->rx_ring,
 365                adapter->num_rx_queues * sizeof(struct ixgbevf_ring));
 366         for (i = 0; i < adapter->num_rx_queues; i++) {
 367                 rx_ring[i].count = new_rx_count;
 368                 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]);
 369                 if (err) {
 370                         while (i) {
 371                                 i--;
 372                                 ixgbevf_free_rx_resources(adapter,
 373                                                           &rx_ring[i]);
 374                         }
 375                                 goto err_rx_ring_setup;
 376                 }
 377                 rx_ring[i].v_idx = adapter->rx_ring[i].v_idx;
 378         }
 379
 380         /*
 381          * Only switch to new rings if all the prior allocations
 382          * and ring setups have succeeded.
 383          */
 384         kfree(adapter->tx_ring);
 385         adapter->tx_ring = tx_ring;
 386         adapter->tx_ring_count = new_tx_count;
 387
 388         kfree(adapter->rx_ring);
 389         adapter->rx_ring = rx_ring;
 390         adapter->rx_ring_count = new_rx_count;
 391
 392         /* success! */
 393         ixgbevf_up(adapter);
 394
 395         goto clear_reset;
 396
 397 err_rx_ring_setup:
 398         for(i = 0; i < adapter->num_tx_queues; i++)
 399                 ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
 400
 401 err_tx_ring_setup:
 402         kfree(rx_ring);
 403
 404 err_rx_setup:
 405         kfree(tx_ring);
 406
 407 clear_reset:
 408         clear_bit(__IXGBEVF_RESETTING, &adapter->state);
 409         return err;
 410 }
 411
 412 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
 413 {
 414        switch (stringset) {
 415        case ETH_SS_TEST:
 416                return IXGBE_TEST_LEN;
 417        case ETH_SS_STATS:
 418                return IXGBE_GLOBAL_STATS_LEN;
 419        default:
 420                return -EINVAL;
 421        }
 422 }
 423
 424 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
 425                                       struct ethtool_stats *stats, u64 *data)
 426 {
 427         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 428         int i;
 429
 430         ixgbevf_update_stats(adapter);
 431         for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 432                 char *p = (char *)adapter +
 433                         ixgbe_gstrings_stats[i].stat_offset;
 434                 char *b = (char *)adapter +
 435                         ixgbe_gstrings_stats[i].base_stat_offset;
 436                 char *r = (char *)adapter +
 437                         ixgbe_gstrings_stats[i].saved_reset_offset;
 438                 data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat ==
 439                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p) -
 440                           ((ixgbe_gstrings_stats[i].sizeof_stat ==
 441                             sizeof(u64)) ? *(u64 *)b : *(u32 *)b) +
 442                           ((ixgbe_gstrings_stats[i].sizeof_stat ==
 443                             sizeof(u64)) ? *(u64 *)r : *(u32 *)r);
 444         }
 445 }
 446
 447 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
 448                                 u8 *data)
 449 {
 450         char *p = (char *)data;
 451         int i;
 452
 453         switch (stringset) {
 454         case ETH_SS_TEST:
 455                 memcpy(data, *ixgbe_gstrings_test,
 456                        IXGBE_TEST_LEN * ETH_GSTRING_LEN);
 457                 break;
 458         case ETH_SS_STATS:
 459                 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 460                         memcpy(p, ixgbe_gstrings_stats[i].stat_string,
 461                                ETH_GSTRING_LEN);
 462                         p += ETH_GSTRING_LEN;
 463                 }
 464                 break;
 465         }
 466 }
 467
 468 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
 469 {
 470         struct ixgbe_hw *hw = &adapter->hw;
 471         bool link_up;
 472         u32 link_speed = 0;
 473         *data = 0;
 474
 475         hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
 476         if (!link_up)
 477                 *data = 1;
 478
 479         return *data;
 480 }
 481
 482 /* ethtool register test data */
 483 struct ixgbevf_reg_test {
 484         u16 reg;
 485         u8  array_len;
 486         u8  test_type;
 487         u32 mask;
 488         u32 write;
 489 };
 490
 491 /* In the hardware, registers are laid out either singly, in arrays
 492  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
 493  * most tests take place on arrays or single registers (handled
 494  * as a single-element array) and special-case the tables.
 495  * Table tests are always pattern tests.
 496  *
 497  * We also make provision for some required setup steps by specifying
 498  * registers to be written without any read-back testing.
 499  */
 500
 501 #define PATTERN_TEST    1
 502 #define SET_READ_TEST   2
 503 #define WRITE_NO_TEST   3
 504 #define TABLE32_TEST    4
 505 #define TABLE64_TEST_LO 5
 506 #define TABLE64_TEST_HI 6
 507
 508 /* default VF register test */
 509 static const struct ixgbevf_reg_test reg_test_vf[] = {
 510         { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
 511         { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 512         { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
 513         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
 514         { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
 515         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
 516         { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
 517         { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 518         { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
 519         { 0, 0, 0, 0 }
 520 };
 521
 522 static const u32 register_test_patterns[] = {
 523         0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 524 };
 525
 526 #define REG_PATTERN_TEST(R, M, W)                                             \
 527 {                                                                             \
 528         u32 pat, val, before;                                                 \
 529         for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {      \
 530                 before = readl(adapter->hw.hw_addr + R);                      \
 531                 writel((register_test_patterns[pat] & W),                     \
 532                        (adapter->hw.hw_addr + R));                            \
 533                 val = readl(adapter->hw.hw_addr + R);                         \
 534                 if (val != (register_test_patterns[pat] & W & M)) {           \
 535                         hw_dbg(&adapter->hw,                                  \
 536                         "pattern test reg %04X failed: got "                  \
 537                         "0x%08X expected 0x%08X\n",                           \
 538                         R, val, (register_test_patterns[pat] & W & M));       \
 539                         *data = R;                                            \
 540                         writel(before, adapter->hw.hw_addr + R);              \
 541                         return 1;                                             \
 542                 }                                                             \
 543                 writel(before, adapter->hw.hw_addr + R);                      \
 544         }                                                                     \
 545 }
 546
 547 #define REG_SET_AND_CHECK(R, M, W)                                            \
 548 {                                                                             \
 549         u32 val, before;                                                      \
 550         before = readl(adapter->hw.hw_addr + R);                              \
 551         writel((W & M), (adapter->hw.hw_addr + R));                           \
 552         val = readl(adapter->hw.hw_addr + R);                                 \
 553         if ((W & M) != (val & M)) {                                           \
 554                 pr_err("set/check reg %04X test failed: got 0x%08X expected " \
 555                        "0x%08X\n", R, (val & M), (W & M));                    \
 556                 *data = R;                                                    \
 557                 writel(before, (adapter->hw.hw_addr + R));                    \
 558                 return 1;                                                     \
 559         }                                                                     \
 560         writel(before, (adapter->hw.hw_addr + R));                            \
 561 }
 562
 563 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
 564 {
 565         const struct ixgbevf_reg_test *test;
 566         u32 i;
 567
 568         test = reg_test_vf;
 569
 570         /*
 571          * Perform the register test, looping through the test table
 572          * until we either fail or reach the null entry.
 573          */
 574         while (test->reg) {
 575                 for (i = 0; i < test->array_len; i++) {
 576                         switch (test->test_type) {
 577                         case PATTERN_TEST:
 578                                 REG_PATTERN_TEST(test->reg + (i * 0x40),
 579                                                 test->mask,
 580                                                 test->write);
 581                                 break;
 582                         case SET_READ_TEST:
 583                                 REG_SET_AND_CHECK(test->reg + (i * 0x40),
 584                                                 test->mask,
 585                                                 test->write);
 586                                 break;
 587                         case WRITE_NO_TEST:
 588                                 writel(test->write,
 589                                        (adapter->hw.hw_addr + test->reg)
 590                                        + (i * 0x40));
 591                                 break;
 592                         case TABLE32_TEST:
 593                                 REG_PATTERN_TEST(test->reg + (i * 4),
 594                                                 test->mask,
 595                                                 test->write);
 596                                 break;
 597                         case TABLE64_TEST_LO:
 598                                 REG_PATTERN_TEST(test->reg + (i * 8),
 599                                                 test->mask,
 600                                                 test->write);
 601                                 break;
 602                         case TABLE64_TEST_HI:
 603                                 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
 604                                                 test->mask,
 605                                                 test->write);
 606                                 break;
 607                         }
 608                 }
 609                 test++;
 610         }
 611
 612         *data = 0;
 613         return *data;
 614 }
 615
 616 static void ixgbevf_diag_test(struct net_device *netdev,
 617                               struct ethtool_test *eth_test, u64 *data)
 618 {
 619         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 620         bool if_running = netif_running(netdev);
 621
 622         set_bit(__IXGBEVF_TESTING, &adapter->state);
 623         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 624                 /* Offline tests */
 625
 626                 hw_dbg(&adapter->hw, "offline testing starting\n");
 627
 628                 /* Link test performed before hardware reset so autoneg doesn't
 629                  * interfere with test result */
 630                 if (ixgbevf_link_test(adapter, &data[1]))
 631                         eth_test->flags |= ETH_TEST_FL_FAILED;
 632
 633                 if (if_running)
 634                         /* indicate we're in test mode */
 635                         dev_close(netdev);
 636                 else
 637                         ixgbevf_reset(adapter);
 638
 639                 hw_dbg(&adapter->hw, "register testing starting\n");
 640                 if (ixgbevf_reg_test(adapter, &data[0]))
 641                         eth_test->flags |= ETH_TEST_FL_FAILED;
 642
 643                 ixgbevf_reset(adapter);
 644
 645                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 646                 if (if_running)
 647                         dev_open(netdev);
 648         } else {
 649                 hw_dbg(&adapter->hw, "online testing starting\n");
 650                 /* Online tests */
 651                 if (ixgbevf_link_test(adapter, &data[1]))
 652                         eth_test->flags |= ETH_TEST_FL_FAILED;
 653
 654                 /* Online tests aren't run; pass by default */
 655                 data[0] = 0;
 656
 657                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 658         }
 659         msleep_interruptible(4 * 1000);
 660 }
 661
 662 static int ixgbevf_nway_reset(struct net_device *netdev)
 663 {
 664         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 665
 666         if (netif_running(netdev)) {
 667                 if (!adapter->dev_closed)
 668                         ixgbevf_reinit_locked(adapter);
 669         }
 670
 671         return 0;
 672 }
 673
 674 static struct ethtool_ops ixgbevf_ethtool_ops = {
 675         .get_settings           = ixgbevf_get_settings,
 676         .get_drvinfo            = ixgbevf_get_drvinfo,
 677         .get_regs_len           = ixgbevf_get_regs_len,
 678         .get_regs               = ixgbevf_get_regs,
 679         .nway_reset             = ixgbevf_nway_reset,
 680         .get_link               = ethtool_op_get_link,
 681         .get_ringparam          = ixgbevf_get_ringparam,
 682         .set_ringparam          = ixgbevf_set_ringparam,
 683         .get_msglevel           = ixgbevf_get_msglevel,
 684         .set_msglevel           = ixgbevf_set_msglevel,
 685         .self_test              = ixgbevf_diag_test,
 686         .get_sset_count         = ixgbevf_get_sset_count,
 687         .get_strings            = ixgbevf_get_strings,
 688         .get_ethtool_stats      = ixgbevf_get_ethtool_stats,
 689 };
 690
 691 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
 692 {
 693         SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);
 694 }