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

   1 /*******************************************************************************
   2
   3   Intel 82599 Virtual Function driver
   4   Copyright(c) 1999 - 2012 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 struct ixgbe_stats {
  47         char stat_string[ETH_GSTRING_LEN];
  48         int sizeof_stat;
  49         int stat_offset;
  50         int base_stat_offset;
  51         int saved_reset_offset;
  52 };
  53
  54 #define IXGBEVF_STAT(m, b, r)  sizeof(((struct ixgbevf_adapter *)0)->m), \
  55                             offsetof(struct ixgbevf_adapter, m),         \
  56                             offsetof(struct ixgbevf_adapter, b),         \
  57                             offsetof(struct ixgbevf_adapter, r)
  58
  59 static const 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 };
  78
  79 #define IXGBE_QUEUE_STATS_LEN 0
  80 #define IXGBE_GLOBAL_STATS_LEN  ARRAY_SIZE(ixgbe_gstrings_stats)
  81
  82 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
  83 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
  84         "Register test  (offline)",
  85         "Link test   (on/offline)"
  86 };
  87 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
  88
  89 static int ixgbevf_get_settings(struct net_device *netdev,
  90                                 struct ethtool_cmd *ecmd)
  91 {
  92         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
  93         struct ixgbe_hw *hw = &adapter->hw;
  94         u32 link_speed = 0;
  95         bool link_up;
  96
  97         ecmd->supported = SUPPORTED_10000baseT_Full;
  98         ecmd->autoneg = AUTONEG_DISABLE;
  99         ecmd->transceiver = XCVR_DUMMY1;
 100         ecmd->port = -1;
 101
 102         hw->mac.get_link_status = 1;
 103         hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
 104
 105         if (link_up) {
 106                 __u32 speed = SPEED_10000;
 107                 switch (link_speed) {
 108                 case IXGBE_LINK_SPEED_10GB_FULL:
 109                         speed = SPEED_10000;
 110                         break;
 111                 case IXGBE_LINK_SPEED_1GB_FULL:
 112                         speed = SPEED_1000;
 113                         break;
 114                 case IXGBE_LINK_SPEED_100_FULL:
 115                         speed = SPEED_100;
 116                         break;
 117                 }
 118
 119                 ethtool_cmd_speed_set(ecmd, speed);
 120                 ecmd->duplex = DUPLEX_FULL;
 121         } else {
 122                 ethtool_cmd_speed_set(ecmd, -1);
 123                 ecmd->duplex = -1;
 124         }
 125
 126         return 0;
 127 }
 128
 129 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
 130 {
 131         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 132         return adapter->msg_enable;
 133 }
 134
 135 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
 136 {
 137         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 138         adapter->msg_enable = data;
 139 }
 140
 141 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
 142
 143 static char *ixgbevf_reg_names[] = {
 144         "IXGBE_VFCTRL",
 145         "IXGBE_VFSTATUS",
 146         "IXGBE_VFLINKS",
 147         "IXGBE_VFRXMEMWRAP",
 148         "IXGBE_VFFRTIMER",
 149         "IXGBE_VTEICR",
 150         "IXGBE_VTEICS",
 151         "IXGBE_VTEIMS",
 152         "IXGBE_VTEIMC",
 153         "IXGBE_VTEIAC",
 154         "IXGBE_VTEIAM",
 155         "IXGBE_VTEITR",
 156         "IXGBE_VTIVAR",
 157         "IXGBE_VTIVAR_MISC",
 158         "IXGBE_VFRDBAL0",
 159         "IXGBE_VFRDBAL1",
 160         "IXGBE_VFRDBAH0",
 161         "IXGBE_VFRDBAH1",
 162         "IXGBE_VFRDLEN0",
 163         "IXGBE_VFRDLEN1",
 164         "IXGBE_VFRDH0",
 165         "IXGBE_VFRDH1",
 166         "IXGBE_VFRDT0",
 167         "IXGBE_VFRDT1",
 168         "IXGBE_VFRXDCTL0",
 169         "IXGBE_VFRXDCTL1",
 170         "IXGBE_VFSRRCTL0",
 171         "IXGBE_VFSRRCTL1",
 172         "IXGBE_VFPSRTYPE",
 173         "IXGBE_VFTDBAL0",
 174         "IXGBE_VFTDBAL1",
 175         "IXGBE_VFTDBAH0",
 176         "IXGBE_VFTDBAH1",
 177         "IXGBE_VFTDLEN0",
 178         "IXGBE_VFTDLEN1",
 179         "IXGBE_VFTDH0",
 180         "IXGBE_VFTDH1",
 181         "IXGBE_VFTDT0",
 182         "IXGBE_VFTDT1",
 183         "IXGBE_VFTXDCTL0",
 184         "IXGBE_VFTXDCTL1",
 185         "IXGBE_VFTDWBAL0",
 186         "IXGBE_VFTDWBAL1",
 187         "IXGBE_VFTDWBAH0",
 188         "IXGBE_VFTDWBAH1"
 189 };
 190
 191
 192 static int ixgbevf_get_regs_len(struct net_device *netdev)
 193 {
 194         return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32);
 195 }
 196
 197 static void ixgbevf_get_regs(struct net_device *netdev,
 198                              struct ethtool_regs *regs,
 199                              void *p)
 200 {
 201         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 202         struct ixgbe_hw *hw = &adapter->hw;
 203         u32 *regs_buff = p;
 204         u32 regs_len = ixgbevf_get_regs_len(netdev);
 205         u8 i;
 206
 207         memset(p, 0, regs_len);
 208
 209         regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
 210
 211         /* General Registers */
 212         regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
 213         regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
 214         regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 215         regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
 216         regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
 217
 218         /* Interrupt */
 219         /* don't read EICR because it can clear interrupt causes, instead
 220          * read EICS which is a shadow but doesn't clear EICR */
 221         regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 222         regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 223         regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
 224         regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
 225         regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
 226         regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
 227         regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
 228         regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
 229         regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
 230
 231         /* Receive DMA */
 232         for (i = 0; i < 2; i++)
 233                 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
 234         for (i = 0; i < 2; i++)
 235                 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
 236         for (i = 0; i < 2; i++)
 237                 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
 238         for (i = 0; i < 2; i++)
 239                 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
 240         for (i = 0; i < 2; i++)
 241                 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
 242         for (i = 0; i < 2; i++)
 243                 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
 244         for (i = 0; i < 2; i++)
 245                 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
 246
 247         /* Receive */
 248         regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
 249
 250         /* Transmit */
 251         for (i = 0; i < 2; i++)
 252                 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
 253         for (i = 0; i < 2; i++)
 254                 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
 255         for (i = 0; i < 2; i++)
 256                 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
 257         for (i = 0; i < 2; i++)
 258                 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
 259         for (i = 0; i < 2; i++)
 260                 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
 261         for (i = 0; i < 2; i++)
 262                 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
 263         for (i = 0; i < 2; i++)
 264                 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
 265         for (i = 0; i < 2; i++)
 266                 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
 267
 268         for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++)
 269                 hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]);
 270 }
 271
 272 static void ixgbevf_get_drvinfo(struct net_device *netdev,
 273                                 struct ethtool_drvinfo *drvinfo)
 274 {
 275         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 276
 277         strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
 278         strlcpy(drvinfo->version, ixgbevf_driver_version,
 279                 sizeof(drvinfo->version));
 280         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 281                 sizeof(drvinfo->bus_info));
 282 }
 283
 284 static void ixgbevf_get_ringparam(struct net_device *netdev,
 285                                   struct ethtool_ringparam *ring)
 286 {
 287         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 288
 289         ring->rx_max_pending = IXGBEVF_MAX_RXD;
 290         ring->tx_max_pending = IXGBEVF_MAX_TXD;
 291         ring->rx_pending = adapter->rx_ring_count;
 292         ring->tx_pending = adapter->tx_ring_count;
 293 }
 294
 295 static int ixgbevf_set_ringparam(struct net_device *netdev,
 296                                  struct ethtool_ringparam *ring)
 297 {
 298         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 299         struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
 300         u32 new_rx_count, new_tx_count;
 301         int i, err = 0;
 302
 303         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 304                 return -EINVAL;
 305
 306         new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD);
 307         new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD);
 308         new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
 309
 310         new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD);
 311         new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD);
 312         new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
 313
 314         /* if nothing to do return success */
 315         if ((new_tx_count == adapter->tx_ring_count) &&
 316             (new_rx_count == adapter->rx_ring_count))
 317                 return 0;
 318
 319         while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
 320                 usleep_range(1000, 2000);
 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         if (new_tx_count != adapter->tx_ring_count) {
 333                 tx_ring = vmalloc(adapter->num_tx_queues * sizeof(*tx_ring));
 334                 if (!tx_ring) {
 335                         err = -ENOMEM;
 336                         goto clear_reset;
 337                 }
 338
 339                 for (i = 0; i < adapter->num_tx_queues; i++) {
 340                         /* clone ring and setup updated count */
 341                         tx_ring[i] = adapter->tx_ring[i];
 342                         tx_ring[i].count = new_tx_count;
 343                         err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]);
 344                         if (!err)
 345                                 continue;
 346                         while (i) {
 347                                 i--;
 348                                 ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
 349                         }
 350
 351                         vfree(tx_ring);
 352                         tx_ring = NULL;
 353
 354                         goto clear_reset;
 355                 }
 356         }
 357
 358         if (new_rx_count != adapter->rx_ring_count) {
 359                 rx_ring = vmalloc(adapter->num_rx_queues * sizeof(*rx_ring));
 360                 if (!rx_ring) {
 361                         err = -ENOMEM;
 362                         goto clear_reset;
 363                 }
 364
 365                 for (i = 0; i < adapter->num_rx_queues; i++) {
 366                         /* clone ring and setup updated count */
 367                         rx_ring[i] = adapter->rx_ring[i];
 368                         rx_ring[i].count = new_rx_count;
 369                         err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]);
 370                         if (!err)
 371                                 continue;
 372                         while (i) {
 373                                 i--;
 374                                 ixgbevf_free_rx_resources(adapter, &rx_ring[i]);
 375                         }
 376
 377                         vfree(rx_ring);
 378                         rx_ring = NULL;
 379
 380                         goto clear_reset;
 381                 }
 382         }
 383
 384         /* bring interface down to prepare for update */
 385         ixgbevf_down(adapter);
 386
 387         /* Tx */
 388         if (tx_ring) {
 389                 for (i = 0; i < adapter->num_tx_queues; i++) {
 390                         ixgbevf_free_tx_resources(adapter,
 391                                                   &adapter->tx_ring[i]);
 392                         adapter->tx_ring[i] = tx_ring[i];
 393                 }
 394                 adapter->tx_ring_count = new_tx_count;
 395
 396                 vfree(tx_ring);
 397                 tx_ring = NULL;
 398         }
 399
 400         /* Rx */
 401         if (rx_ring) {
 402                 for (i = 0; i < adapter->num_rx_queues; i++) {
 403                         ixgbevf_free_rx_resources(adapter,
 404                                                   &adapter->rx_ring[i]);
 405                         adapter->rx_ring[i] = rx_ring[i];
 406                 }
 407                 adapter->rx_ring_count = new_rx_count;
 408
 409                 vfree(rx_ring);
 410                 rx_ring = NULL;
 411         }
 412
 413         /* restore interface using new values */
 414         ixgbevf_up(adapter);
 415
 416 clear_reset:
 417         /* free Tx resources if Rx error is encountered */
 418         if (tx_ring) {
 419                 for (i = 0; i < adapter->num_tx_queues; i++)
 420                         ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
 421                 vfree(tx_ring);
 422         }
 423
 424         clear_bit(__IXGBEVF_RESETTING, &adapter->state);
 425         return err;
 426 }
 427
 428 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
 429 {
 430        switch (stringset) {
 431        case ETH_SS_TEST:
 432                return IXGBE_TEST_LEN;
 433        case ETH_SS_STATS:
 434                return IXGBE_GLOBAL_STATS_LEN;
 435        default:
 436                return -EINVAL;
 437        }
 438 }
 439
 440 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
 441                                       struct ethtool_stats *stats, u64 *data)
 442 {
 443         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 444         int i;
 445
 446         ixgbevf_update_stats(adapter);
 447         for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 448                 char *p = (char *)adapter +
 449                         ixgbe_gstrings_stats[i].stat_offset;
 450                 char *b = (char *)adapter +
 451                         ixgbe_gstrings_stats[i].base_stat_offset;
 452                 char *r = (char *)adapter +
 453                         ixgbe_gstrings_stats[i].saved_reset_offset;
 454                 data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat ==
 455                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p) -
 456                           ((ixgbe_gstrings_stats[i].sizeof_stat ==
 457                             sizeof(u64)) ? *(u64 *)b : *(u32 *)b) +
 458                           ((ixgbe_gstrings_stats[i].sizeof_stat ==
 459                             sizeof(u64)) ? *(u64 *)r : *(u32 *)r);
 460         }
 461 }
 462
 463 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
 464                                 u8 *data)
 465 {
 466         char *p = (char *)data;
 467         int i;
 468
 469         switch (stringset) {
 470         case ETH_SS_TEST:
 471                 memcpy(data, *ixgbe_gstrings_test,
 472                        IXGBE_TEST_LEN * ETH_GSTRING_LEN);
 473                 break;
 474         case ETH_SS_STATS:
 475                 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 476                         memcpy(p, ixgbe_gstrings_stats[i].stat_string,
 477                                ETH_GSTRING_LEN);
 478                         p += ETH_GSTRING_LEN;
 479                 }
 480                 break;
 481         }
 482 }
 483
 484 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
 485 {
 486         struct ixgbe_hw *hw = &adapter->hw;
 487         bool link_up;
 488         u32 link_speed = 0;
 489         *data = 0;
 490
 491         hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
 492         if (!link_up)
 493                 *data = 1;
 494
 495         return *data;
 496 }
 497
 498 /* ethtool register test data */
 499 struct ixgbevf_reg_test {
 500         u16 reg;
 501         u8  array_len;
 502         u8  test_type;
 503         u32 mask;
 504         u32 write;
 505 };
 506
 507 /* In the hardware, registers are laid out either singly, in arrays
 508  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
 509  * most tests take place on arrays or single registers (handled
 510  * as a single-element array) and special-case the tables.
 511  * Table tests are always pattern tests.
 512  *
 513  * We also make provision for some required setup steps by specifying
 514  * registers to be written without any read-back testing.
 515  */
 516
 517 #define PATTERN_TEST    1
 518 #define SET_READ_TEST   2
 519 #define WRITE_NO_TEST   3
 520 #define TABLE32_TEST    4
 521 #define TABLE64_TEST_LO 5
 522 #define TABLE64_TEST_HI 6
 523
 524 /* default VF register test */
 525 static const struct ixgbevf_reg_test reg_test_vf[] = {
 526         { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
 527         { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 528         { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
 529         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
 530         { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
 531         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
 532         { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
 533         { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 534         { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
 535         { 0, 0, 0, 0 }
 536 };
 537
 538 static const u32 register_test_patterns[] = {
 539         0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 540 };
 541
 542 #define REG_PATTERN_TEST(R, M, W)                                             \
 543 {                                                                             \
 544         u32 pat, val, before;                                                 \
 545         for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {      \
 546                 before = readl(adapter->hw.hw_addr + R);                      \
 547                 writel((register_test_patterns[pat] & W),                     \
 548                        (adapter->hw.hw_addr + R));                            \
 549                 val = readl(adapter->hw.hw_addr + R);                         \
 550                 if (val != (register_test_patterns[pat] & W & M)) {           \
 551                         hw_dbg(&adapter->hw,                                  \
 552                         "pattern test reg %04X failed: got "                  \
 553                         "0x%08X expected 0x%08X\n",                           \
 554                         R, val, (register_test_patterns[pat] & W & M));       \
 555                         *data = R;                                            \
 556                         writel(before, adapter->hw.hw_addr + R);              \
 557                         return 1;                                             \
 558                 }                                                             \
 559                 writel(before, adapter->hw.hw_addr + R);                      \
 560         }                                                                     \
 561 }
 562
 563 #define REG_SET_AND_CHECK(R, M, W)                                            \
 564 {                                                                             \
 565         u32 val, before;                                                      \
 566         before = readl(adapter->hw.hw_addr + R);                              \
 567         writel((W & M), (adapter->hw.hw_addr + R));                           \
 568         val = readl(adapter->hw.hw_addr + R);                                 \
 569         if ((W & M) != (val & M)) {                                           \
 570                 pr_err("set/check reg %04X test failed: got 0x%08X expected " \
 571                        "0x%08X\n", R, (val & M), (W & M));                    \
 572                 *data = R;                                                    \
 573                 writel(before, (adapter->hw.hw_addr + R));                    \
 574                 return 1;                                                     \
 575         }                                                                     \
 576         writel(before, (adapter->hw.hw_addr + R));                            \
 577 }
 578
 579 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
 580 {
 581         const struct ixgbevf_reg_test *test;
 582         u32 i;
 583
 584         test = reg_test_vf;
 585
 586         /*
 587          * Perform the register test, looping through the test table
 588          * until we either fail or reach the null entry.
 589          */
 590         while (test->reg) {
 591                 for (i = 0; i < test->array_len; i++) {
 592                         switch (test->test_type) {
 593                         case PATTERN_TEST:
 594                                 REG_PATTERN_TEST(test->reg + (i * 0x40),
 595                                                 test->mask,
 596                                                 test->write);
 597                                 break;
 598                         case SET_READ_TEST:
 599                                 REG_SET_AND_CHECK(test->reg + (i * 0x40),
 600                                                 test->mask,
 601                                                 test->write);
 602                                 break;
 603                         case WRITE_NO_TEST:
 604                                 writel(test->write,
 605                                        (adapter->hw.hw_addr + test->reg)
 606                                        + (i * 0x40));
 607                                 break;
 608                         case TABLE32_TEST:
 609                                 REG_PATTERN_TEST(test->reg + (i * 4),
 610                                                 test->mask,
 611                                                 test->write);
 612                                 break;
 613                         case TABLE64_TEST_LO:
 614                                 REG_PATTERN_TEST(test->reg + (i * 8),
 615                                                 test->mask,
 616                                                 test->write);
 617                                 break;
 618                         case TABLE64_TEST_HI:
 619                                 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
 620                                                 test->mask,
 621                                                 test->write);
 622                                 break;
 623                         }
 624                 }
 625                 test++;
 626         }
 627
 628         *data = 0;
 629         return *data;
 630 }
 631
 632 static void ixgbevf_diag_test(struct net_device *netdev,
 633                               struct ethtool_test *eth_test, u64 *data)
 634 {
 635         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 636         bool if_running = netif_running(netdev);
 637
 638         set_bit(__IXGBEVF_TESTING, &adapter->state);
 639         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 640                 /* Offline tests */
 641
 642                 hw_dbg(&adapter->hw, "offline testing starting\n");
 643
 644                 /* Link test performed before hardware reset so autoneg doesn't
 645                  * interfere with test result */
 646                 if (ixgbevf_link_test(adapter, &data[1]))
 647                         eth_test->flags |= ETH_TEST_FL_FAILED;
 648
 649                 if (if_running)
 650                         /* indicate we're in test mode */
 651                         dev_close(netdev);
 652                 else
 653                         ixgbevf_reset(adapter);
 654
 655                 hw_dbg(&adapter->hw, "register testing starting\n");
 656                 if (ixgbevf_reg_test(adapter, &data[0]))
 657                         eth_test->flags |= ETH_TEST_FL_FAILED;
 658
 659                 ixgbevf_reset(adapter);
 660
 661                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 662                 if (if_running)
 663                         dev_open(netdev);
 664         } else {
 665                 hw_dbg(&adapter->hw, "online testing starting\n");
 666                 /* Online tests */
 667                 if (ixgbevf_link_test(adapter, &data[1]))
 668                         eth_test->flags |= ETH_TEST_FL_FAILED;
 669
 670                 /* Online tests aren't run; pass by default */
 671                 data[0] = 0;
 672
 673                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 674         }
 675         msleep_interruptible(4 * 1000);
 676 }
 677
 678 static int ixgbevf_nway_reset(struct net_device *netdev)
 679 {
 680         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 681
 682         if (netif_running(netdev))
 683                 ixgbevf_reinit_locked(adapter);
 684
 685         return 0;
 686 }
 687
 688 static const struct ethtool_ops ixgbevf_ethtool_ops = {
 689         .get_settings           = ixgbevf_get_settings,
 690         .get_drvinfo            = ixgbevf_get_drvinfo,
 691         .get_regs_len           = ixgbevf_get_regs_len,
 692         .get_regs               = ixgbevf_get_regs,
 693         .nway_reset             = ixgbevf_nway_reset,
 694         .get_link               = ethtool_op_get_link,
 695         .get_ringparam          = ixgbevf_get_ringparam,
 696         .set_ringparam          = ixgbevf_set_ringparam,
 697         .get_msglevel           = ixgbevf_get_msglevel,
 698         .set_msglevel           = ixgbevf_set_msglevel,
 699         .self_test              = ixgbevf_diag_test,
 700         .get_sset_count         = ixgbevf_get_sset_count,
 701         .get_strings            = ixgbevf_get_strings,
 702         .get_ethtool_stats      = ixgbevf_get_ethtool_stats,
 703 };
 704
 705 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
 706 {
 707         SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);
 708 }