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 #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
  60 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
  61         {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
  62                                     stats.saved_reset_vfgprc)},
  63         {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
  64                                     stats.saved_reset_vfgptc)},
  65         {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
  66                                   stats.saved_reset_vfgorc)},
  67         {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
  68                                   stats.saved_reset_vfgotc)},
  69         {"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)},
  70         {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
  71                                    stats.saved_reset_vfmprc)},
  72         {"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base,
  73                                               zero_base)},
  74         {"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base,
  75                                                 zero_base)},
  76         {"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base,
  77                                               zero_base)},
  78         {"rx_header_split", IXGBEVF_STAT(rx_hdr_split, zero_base, zero_base)},
  79 };
  80
  81 #define IXGBE_QUEUE_STATS_LEN 0
  82 #define IXGBE_GLOBAL_STATS_LEN  ARRAY_SIZE(ixgbe_gstrings_stats)
  83
  84 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
  85 #endif /* ETHTOOL_GSTATS */
  86 #ifdef ETHTOOL_TEST
  87 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
  88         "Register test  (offline)",
  89         "Link test   (on/offline)"
  90 };
  91 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
  92 #endif /* ETHTOOL_TEST */
  93
  94 static int ixgbevf_get_settings(struct net_device *netdev,
  95                                 struct ethtool_cmd *ecmd)
  96 {
  97         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
  98         struct ixgbe_hw *hw = &adapter->hw;
  99         u32 link_speed = 0;
 100         bool link_up;
 101
 102         ecmd->supported = SUPPORTED_10000baseT_Full;
 103         ecmd->autoneg = AUTONEG_DISABLE;
 104         ecmd->transceiver = XCVR_DUMMY1;
 105         ecmd->port = -1;
 106
 107         hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
 108
 109         if (link_up) {
 110                 __u32 speed = SPEED_10000;
 111                 switch (link_speed) {
 112                 case IXGBE_LINK_SPEED_10GB_FULL:
 113                         speed = SPEED_10000;
 114                         break;
 115                 case IXGBE_LINK_SPEED_1GB_FULL:
 116                         speed = SPEED_1000;
 117                         break;
 118                 case IXGBE_LINK_SPEED_100_FULL:
 119                         speed = SPEED_100;
 120                         break;
 121                 }
 122
 123                 ethtool_cmd_speed_set(ecmd, speed);
 124                 ecmd->duplex = DUPLEX_FULL;
 125         } else {
 126                 ethtool_cmd_speed_set(ecmd, -1);
 127                 ecmd->duplex = -1;
 128         }
 129
 130         return 0;
 131 }
 132
 133 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
 134 {
 135         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 136         return adapter->msg_enable;
 137 }
 138
 139 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
 140 {
 141         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 142         adapter->msg_enable = data;
 143 }
 144
 145 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
 146
 147 static char *ixgbevf_reg_names[] = {
 148         "IXGBE_VFCTRL",
 149         "IXGBE_VFSTATUS",
 150         "IXGBE_VFLINKS",
 151         "IXGBE_VFRXMEMWRAP",
 152         "IXGBE_VFFRTIMER",
 153         "IXGBE_VTEICR",
 154         "IXGBE_VTEICS",
 155         "IXGBE_VTEIMS",
 156         "IXGBE_VTEIMC",
 157         "IXGBE_VTEIAC",
 158         "IXGBE_VTEIAM",
 159         "IXGBE_VTEITR",
 160         "IXGBE_VTIVAR",
 161         "IXGBE_VTIVAR_MISC",
 162         "IXGBE_VFRDBAL0",
 163         "IXGBE_VFRDBAL1",
 164         "IXGBE_VFRDBAH0",
 165         "IXGBE_VFRDBAH1",
 166         "IXGBE_VFRDLEN0",
 167         "IXGBE_VFRDLEN1",
 168         "IXGBE_VFRDH0",
 169         "IXGBE_VFRDH1",
 170         "IXGBE_VFRDT0",
 171         "IXGBE_VFRDT1",
 172         "IXGBE_VFRXDCTL0",
 173         "IXGBE_VFRXDCTL1",
 174         "IXGBE_VFSRRCTL0",
 175         "IXGBE_VFSRRCTL1",
 176         "IXGBE_VFPSRTYPE",
 177         "IXGBE_VFTDBAL0",
 178         "IXGBE_VFTDBAL1",
 179         "IXGBE_VFTDBAH0",
 180         "IXGBE_VFTDBAH1",
 181         "IXGBE_VFTDLEN0",
 182         "IXGBE_VFTDLEN1",
 183         "IXGBE_VFTDH0",
 184         "IXGBE_VFTDH1",
 185         "IXGBE_VFTDT0",
 186         "IXGBE_VFTDT1",
 187         "IXGBE_VFTXDCTL0",
 188         "IXGBE_VFTXDCTL1",
 189         "IXGBE_VFTDWBAL0",
 190         "IXGBE_VFTDWBAL1",
 191         "IXGBE_VFTDWBAH0",
 192         "IXGBE_VFTDWBAH1"
 193 };
 194
 195
 196 static int ixgbevf_get_regs_len(struct net_device *netdev)
 197 {
 198         return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32);
 199 }
 200
 201 static void ixgbevf_get_regs(struct net_device *netdev,
 202                              struct ethtool_regs *regs,
 203                              void *p)
 204 {
 205         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 206         struct ixgbe_hw *hw = &adapter->hw;
 207         u32 *regs_buff = p;
 208         u32 regs_len = ixgbevf_get_regs_len(netdev);
 209         u8 i;
 210
 211         memset(p, 0, regs_len);
 212
 213         regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
 214
 215         /* General Registers */
 216         regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
 217         regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
 218         regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 219         regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
 220         regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
 221
 222         /* Interrupt */
 223         /* don't read EICR because it can clear interrupt causes, instead
 224          * read EICS which is a shadow but doesn't clear EICR */
 225         regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 226         regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 227         regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
 228         regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
 229         regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
 230         regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
 231         regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
 232         regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
 233         regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
 234
 235         /* Receive DMA */
 236         for (i = 0; i < 2; i++)
 237                 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
 238         for (i = 0; i < 2; i++)
 239                 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
 240         for (i = 0; i < 2; i++)
 241                 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
 242         for (i = 0; i < 2; i++)
 243                 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
 244         for (i = 0; i < 2; i++)
 245                 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
 246         for (i = 0; i < 2; i++)
 247                 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
 248         for (i = 0; i < 2; i++)
 249                 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
 250
 251         /* Receive */
 252         regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
 253
 254         /* Transmit */
 255         for (i = 0; i < 2; i++)
 256                 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
 257         for (i = 0; i < 2; i++)
 258                 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
 259         for (i = 0; i < 2; i++)
 260                 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
 261         for (i = 0; i < 2; i++)
 262                 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
 263         for (i = 0; i < 2; i++)
 264                 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
 265         for (i = 0; i < 2; i++)
 266                 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
 267         for (i = 0; i < 2; i++)
 268                 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
 269         for (i = 0; i < 2; i++)
 270                 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
 271
 272         for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++)
 273                 hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]);
 274 }
 275
 276 static void ixgbevf_get_drvinfo(struct net_device *netdev,
 277                                 struct ethtool_drvinfo *drvinfo)
 278 {
 279         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 280
 281         strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
 282         strlcpy(drvinfo->version, ixgbevf_driver_version,
 283                 sizeof(drvinfo->version));
 284         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 285                 sizeof(drvinfo->bus_info));
 286 }
 287
 288 static void ixgbevf_get_ringparam(struct net_device *netdev,
 289                                   struct ethtool_ringparam *ring)
 290 {
 291         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 292         struct ixgbevf_ring *tx_ring = adapter->tx_ring;
 293         struct ixgbevf_ring *rx_ring = adapter->rx_ring;
 294
 295         ring->rx_max_pending = IXGBEVF_MAX_RXD;
 296         ring->tx_max_pending = IXGBEVF_MAX_TXD;
 297         ring->rx_pending = rx_ring->count;
 298         ring->tx_pending = tx_ring->count;
 299 }
 300
 301 static int ixgbevf_set_ringparam(struct net_device *netdev,
 302                                  struct ethtool_ringparam *ring)
 303 {
 304         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 305         struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
 306         int i, err = 0;
 307         u32 new_rx_count, new_tx_count;
 308
 309         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 310                 return -EINVAL;
 311
 312         new_rx_count = max(ring->rx_pending, (u32)IXGBEVF_MIN_RXD);
 313         new_rx_count = min(new_rx_count, (u32)IXGBEVF_MAX_RXD);
 314         new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
 315
 316         new_tx_count = max(ring->tx_pending, (u32)IXGBEVF_MIN_TXD);
 317         new_tx_count = min(new_tx_count, (u32)IXGBEVF_MAX_TXD);
 318         new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
 319
 320         if ((new_tx_count == adapter->tx_ring->count) &&
 321             (new_rx_count == adapter->rx_ring->count)) {
 322                 /* nothing to do */
 323                 return 0;
 324         }
 325
 326         while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
 327                 msleep(1);
 328
 329         /*
 330          * If the adapter isn't up and running then just set the
 331          * new parameters and scurry for the exits.
 332          */
 333         if (!netif_running(adapter->netdev)) {
 334                 for (i = 0; i < adapter->num_tx_queues; i++)
 335                         adapter->tx_ring[i].count = new_tx_count;
 336                 for (i = 0; i < adapter->num_rx_queues; i++)
 337                         adapter->rx_ring[i].count = new_rx_count;
 338                 adapter->tx_ring_count = new_tx_count;
 339                 adapter->rx_ring_count = new_rx_count;
 340                 goto clear_reset;
 341         }
 342
 343         tx_ring = kcalloc(adapter->num_tx_queues,
 344                           sizeof(struct ixgbevf_ring), GFP_KERNEL);
 345         if (!tx_ring) {
 346                 err = -ENOMEM;
 347                 goto clear_reset;
 348         }
 349
 350         rx_ring = kcalloc(adapter->num_rx_queues,
 351                           sizeof(struct ixgbevf_ring), GFP_KERNEL);
 352         if (!rx_ring) {
 353                 err = -ENOMEM;
 354                 goto err_rx_setup;
 355         }
 356
 357         ixgbevf_down(adapter);
 358
 359         memcpy(tx_ring, adapter->tx_ring,
 360                adapter->num_tx_queues * sizeof(struct ixgbevf_ring));
 361         for (i = 0; i < adapter->num_tx_queues; i++) {
 362                 tx_ring[i].count = new_tx_count;
 363                 err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]);
 364                 if (err) {
 365                         while (i) {
 366                                 i--;
 367                                 ixgbevf_free_tx_resources(adapter,
 368                                                           &tx_ring[i]);
 369                         }
 370                         goto err_tx_ring_setup;
 371                 }
 372                 tx_ring[i].v_idx = adapter->tx_ring[i].v_idx;
 373         }
 374
 375         memcpy(rx_ring, adapter->rx_ring,
 376                adapter->num_rx_queues * sizeof(struct ixgbevf_ring));
 377         for (i = 0; i < adapter->num_rx_queues; i++) {
 378                 rx_ring[i].count = new_rx_count;
 379                 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]);
 380                 if (err) {
 381                         while (i) {
 382                                 i--;
 383                                 ixgbevf_free_rx_resources(adapter,
 384                                                           &rx_ring[i]);
 385                         }
 386                                 goto err_rx_ring_setup;
 387                 }
 388                 rx_ring[i].v_idx = adapter->rx_ring[i].v_idx;
 389         }
 390
 391         /*
 392          * Only switch to new rings if all the prior allocations
 393          * and ring setups have succeeded.
 394          */
 395         kfree(adapter->tx_ring);
 396         adapter->tx_ring = tx_ring;
 397         adapter->tx_ring_count = new_tx_count;
 398
 399         kfree(adapter->rx_ring);
 400         adapter->rx_ring = rx_ring;
 401         adapter->rx_ring_count = new_rx_count;
 402
 403         /* success! */
 404         ixgbevf_up(adapter);
 405
 406         goto clear_reset;
 407
 408 err_rx_ring_setup:
 409         for(i = 0; i < adapter->num_tx_queues; i++)
 410                 ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
 411
 412 err_tx_ring_setup:
 413         kfree(rx_ring);
 414
 415 err_rx_setup:
 416         kfree(tx_ring);
 417
 418 clear_reset:
 419         clear_bit(__IXGBEVF_RESETTING, &adapter->state);
 420         return err;
 421 }
 422
 423 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
 424 {
 425        switch (stringset) {
 426        case ETH_SS_TEST:
 427                return IXGBE_TEST_LEN;
 428        case ETH_SS_STATS:
 429                return IXGBE_GLOBAL_STATS_LEN;
 430        default:
 431                return -EINVAL;
 432        }
 433 }
 434
 435 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
 436                                       struct ethtool_stats *stats, u64 *data)
 437 {
 438         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 439         int i;
 440
 441         ixgbevf_update_stats(adapter);
 442         for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 443                 char *p = (char *)adapter +
 444                         ixgbe_gstrings_stats[i].stat_offset;
 445                 char *b = (char *)adapter +
 446                         ixgbe_gstrings_stats[i].base_stat_offset;
 447                 char *r = (char *)adapter +
 448                         ixgbe_gstrings_stats[i].saved_reset_offset;
 449                 data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat ==
 450                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p) -
 451                           ((ixgbe_gstrings_stats[i].sizeof_stat ==
 452                             sizeof(u64)) ? *(u64 *)b : *(u32 *)b) +
 453                           ((ixgbe_gstrings_stats[i].sizeof_stat ==
 454                             sizeof(u64)) ? *(u64 *)r : *(u32 *)r);
 455         }
 456 }
 457
 458 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
 459                                 u8 *data)
 460 {
 461         char *p = (char *)data;
 462         int i;
 463
 464         switch (stringset) {
 465         case ETH_SS_TEST:
 466                 memcpy(data, *ixgbe_gstrings_test,
 467                        IXGBE_TEST_LEN * ETH_GSTRING_LEN);
 468                 break;
 469         case ETH_SS_STATS:
 470                 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 471                         memcpy(p, ixgbe_gstrings_stats[i].stat_string,
 472                                ETH_GSTRING_LEN);
 473                         p += ETH_GSTRING_LEN;
 474                 }
 475                 break;
 476         }
 477 }
 478
 479 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
 480 {
 481         struct ixgbe_hw *hw = &adapter->hw;
 482         bool link_up;
 483         u32 link_speed = 0;
 484         *data = 0;
 485
 486         hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
 487         if (!link_up)
 488                 *data = 1;
 489
 490         return *data;
 491 }
 492
 493 /* ethtool register test data */
 494 struct ixgbevf_reg_test {
 495         u16 reg;
 496         u8  array_len;
 497         u8  test_type;
 498         u32 mask;
 499         u32 write;
 500 };
 501
 502 /* In the hardware, registers are laid out either singly, in arrays
 503  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
 504  * most tests take place on arrays or single registers (handled
 505  * as a single-element array) and special-case the tables.
 506  * Table tests are always pattern tests.
 507  *
 508  * We also make provision for some required setup steps by specifying
 509  * registers to be written without any read-back testing.
 510  */
 511
 512 #define PATTERN_TEST    1
 513 #define SET_READ_TEST   2
 514 #define WRITE_NO_TEST   3
 515 #define TABLE32_TEST    4
 516 #define TABLE64_TEST_LO 5
 517 #define TABLE64_TEST_HI 6
 518
 519 /* default VF register test */
 520 static const struct ixgbevf_reg_test reg_test_vf[] = {
 521         { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
 522         { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 523         { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
 524         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
 525         { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
 526         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
 527         { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
 528         { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 529         { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
 530         { 0, 0, 0, 0 }
 531 };
 532
 533 static const u32 register_test_patterns[] = {
 534         0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 535 };
 536
 537 #define REG_PATTERN_TEST(R, M, W)                                             \
 538 {                                                                             \
 539         u32 pat, val, before;                                                 \
 540         for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {      \
 541                 before = readl(adapter->hw.hw_addr + R);                      \
 542                 writel((register_test_patterns[pat] & W),                     \
 543                        (adapter->hw.hw_addr + R));                            \
 544                 val = readl(adapter->hw.hw_addr + R);                         \
 545                 if (val != (register_test_patterns[pat] & W & M)) {           \
 546                         hw_dbg(&adapter->hw,                                  \
 547                         "pattern test reg %04X failed: got "                  \
 548                         "0x%08X expected 0x%08X\n",                           \
 549                         R, val, (register_test_patterns[pat] & W & M));       \
 550                         *data = R;                                            \
 551                         writel(before, adapter->hw.hw_addr + R);              \
 552                         return 1;                                             \
 553                 }                                                             \
 554                 writel(before, adapter->hw.hw_addr + R);                      \
 555         }                                                                     \
 556 }
 557
 558 #define REG_SET_AND_CHECK(R, M, W)                                            \
 559 {                                                                             \
 560         u32 val, before;                                                      \
 561         before = readl(adapter->hw.hw_addr + R);                              \
 562         writel((W & M), (adapter->hw.hw_addr + R));                           \
 563         val = readl(adapter->hw.hw_addr + R);                                 \
 564         if ((W & M) != (val & M)) {                                           \
 565                 pr_err("set/check reg %04X test failed: got 0x%08X expected " \
 566                        "0x%08X\n", R, (val & M), (W & M));                    \
 567                 *data = R;                                                    \
 568                 writel(before, (adapter->hw.hw_addr + R));                    \
 569                 return 1;                                                     \
 570         }                                                                     \
 571         writel(before, (adapter->hw.hw_addr + R));                            \
 572 }
 573
 574 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
 575 {
 576         const struct ixgbevf_reg_test *test;
 577         u32 i;
 578
 579         test = reg_test_vf;
 580
 581         /*
 582          * Perform the register test, looping through the test table
 583          * until we either fail or reach the null entry.
 584          */
 585         while (test->reg) {
 586                 for (i = 0; i < test->array_len; i++) {
 587                         switch (test->test_type) {
 588                         case PATTERN_TEST:
 589                                 REG_PATTERN_TEST(test->reg + (i * 0x40),
 590                                                 test->mask,
 591                                                 test->write);
 592                                 break;
 593                         case SET_READ_TEST:
 594                                 REG_SET_AND_CHECK(test->reg + (i * 0x40),
 595                                                 test->mask,
 596                                                 test->write);
 597                                 break;
 598                         case WRITE_NO_TEST:
 599                                 writel(test->write,
 600                                        (adapter->hw.hw_addr + test->reg)
 601                                        + (i * 0x40));
 602                                 break;
 603                         case TABLE32_TEST:
 604                                 REG_PATTERN_TEST(test->reg + (i * 4),
 605                                                 test->mask,
 606                                                 test->write);
 607                                 break;
 608                         case TABLE64_TEST_LO:
 609                                 REG_PATTERN_TEST(test->reg + (i * 8),
 610                                                 test->mask,
 611                                                 test->write);
 612                                 break;
 613                         case TABLE64_TEST_HI:
 614                                 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
 615                                                 test->mask,
 616                                                 test->write);
 617                                 break;
 618                         }
 619                 }
 620                 test++;
 621         }
 622
 623         *data = 0;
 624         return *data;
 625 }
 626
 627 static void ixgbevf_diag_test(struct net_device *netdev,
 628                               struct ethtool_test *eth_test, u64 *data)
 629 {
 630         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 631         bool if_running = netif_running(netdev);
 632
 633         set_bit(__IXGBEVF_TESTING, &adapter->state);
 634         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 635                 /* Offline tests */
 636
 637                 hw_dbg(&adapter->hw, "offline testing starting\n");
 638
 639                 /* Link test performed before hardware reset so autoneg doesn't
 640                  * interfere with test result */
 641                 if (ixgbevf_link_test(adapter, &data[1]))
 642                         eth_test->flags |= ETH_TEST_FL_FAILED;
 643
 644                 if (if_running)
 645                         /* indicate we're in test mode */
 646                         dev_close(netdev);
 647                 else
 648                         ixgbevf_reset(adapter);
 649
 650                 hw_dbg(&adapter->hw, "register testing starting\n");
 651                 if (ixgbevf_reg_test(adapter, &data[0]))
 652                         eth_test->flags |= ETH_TEST_FL_FAILED;
 653
 654                 ixgbevf_reset(adapter);
 655
 656                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 657                 if (if_running)
 658                         dev_open(netdev);
 659         } else {
 660                 hw_dbg(&adapter->hw, "online testing starting\n");
 661                 /* Online tests */
 662                 if (ixgbevf_link_test(adapter, &data[1]))
 663                         eth_test->flags |= ETH_TEST_FL_FAILED;
 664
 665                 /* Online tests aren't run; pass by default */
 666                 data[0] = 0;
 667
 668                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 669         }
 670         msleep_interruptible(4 * 1000);
 671 }
 672
 673 static int ixgbevf_nway_reset(struct net_device *netdev)
 674 {
 675         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 676
 677         if (netif_running(netdev)) {
 678                 if (!adapter->dev_closed)
 679                         ixgbevf_reinit_locked(adapter);
 680         }
 681
 682         return 0;
 683 }
 684
 685 static const struct ethtool_ops ixgbevf_ethtool_ops = {
 686         .get_settings           = ixgbevf_get_settings,
 687         .get_drvinfo            = ixgbevf_get_drvinfo,
 688         .get_regs_len           = ixgbevf_get_regs_len,
 689         .get_regs               = ixgbevf_get_regs,
 690         .nway_reset             = ixgbevf_nway_reset,
 691         .get_link               = ethtool_op_get_link,
 692         .get_ringparam          = ixgbevf_get_ringparam,
 693         .set_ringparam          = ixgbevf_set_ringparam,
 694         .get_msglevel           = ixgbevf_get_msglevel,
 695         .set_msglevel           = ixgbevf_set_msglevel,
 696         .self_test              = ixgbevf_diag_test,
 697         .get_sset_count         = ixgbevf_get_sset_count,
 698         .get_strings            = ixgbevf_get_strings,
 699         .get_ethtool_stats      = ixgbevf_get_ethtool_stats,
 700 };
 701
 702 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
 703 {
 704         SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);
 705 }