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