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 #include <linux/types.h>
  31 #include <linux/module.h>
  32 #include <linux/slab.h>
  33 #include <linux/pci.h>
  34 #include <linux/netdevice.h>
  35 #include <linux/ethtool.h>
  36 #include <linux/vmalloc.h>
  37 #include <linux/if_vlan.h>
  38 #include <linux/uaccess.h>
  39
  40 #include "ixgbevf.h"
  41
  42 #define IXGBE_ALL_RAR_ENTRIES 16
  43
  44 #ifdef ETHTOOL_GSTATS
  45 struct ixgbe_stats {
  46         char stat_string[ETH_GSTRING_LEN];
  47         int sizeof_stat;
  48         int stat_offset;
  49         int base_stat_offset;
  50         int saved_reset_offset;
  51 };
  52
  53 #define IXGBEVF_STAT(m, b, r)  sizeof(((struct ixgbevf_adapter *)0)->m), \
  54                             offsetof(struct ixgbevf_adapter, m),         \
  55                             offsetof(struct ixgbevf_adapter, b),         \
  56                             offsetof(struct ixgbevf_adapter, r)
  57 static struct ixgbe_stats ixgbe_gstrings_stats[] = {
  58         {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
  59                                     stats.saved_reset_vfgprc)},
  60         {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
  61                                     stats.saved_reset_vfgptc)},
  62         {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
  63                                   stats.saved_reset_vfgorc)},
  64         {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
  65                                   stats.saved_reset_vfgotc)},
  66         {"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)},
  67         {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
  68                                    stats.saved_reset_vfmprc)},
  69         {"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base,
  70                                               zero_base)},
  71         {"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base,
  72                                                 zero_base)},
  73         {"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base,
  74                                               zero_base)},
  75         {"rx_header_split", IXGBEVF_STAT(rx_hdr_split, zero_base, zero_base)},
  76 };
  77
  78 #define IXGBE_QUEUE_STATS_LEN 0
  79 #define IXGBE_GLOBAL_STATS_LEN  ARRAY_SIZE(ixgbe_gstrings_stats)
  80
  81 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
  82 #endif /* ETHTOOL_GSTATS */
  83 #ifdef ETHTOOL_TEST
  84 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
  85         "Register test  (offline)",
  86         "Link test   (on/offline)"
  87 };
  88 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
  89 #endif /* ETHTOOL_TEST */
  90
  91 static int ixgbevf_get_settings(struct net_device *netdev,
  92                                 struct ethtool_cmd *ecmd)
  93 {
  94         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
  95         struct ixgbe_hw *hw = &adapter->hw;
  96         u32 link_speed = 0;
  97         bool link_up;
  98
  99         ecmd->supported = SUPPORTED_10000baseT_Full;
 100         ecmd->autoneg = AUTONEG_DISABLE;
 101         ecmd->transceiver = XCVR_DUMMY1;
 102         ecmd->port = -1;
 103
 104         hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
 105
 106         if (link_up) {
 107                 ethtool_cmd_speed_set(
 108                         ecmd,
 109                         (link_speed == IXGBE_LINK_SPEED_10GB_FULL) ?
 110                         SPEED_10000 : SPEED_1000);
 111                 ecmd->duplex = DUPLEX_FULL;
 112         } else {
 113                 ethtool_cmd_speed_set(ecmd, -1);
 114                 ecmd->duplex = -1;
 115         }
 116
 117         return 0;
 118 }
 119
 120 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
 121 {
 122         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 123         return adapter->msg_enable;
 124 }
 125
 126 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
 127 {
 128         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 129         adapter->msg_enable = data;
 130 }
 131
 132 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
 133
 134 static char *ixgbevf_reg_names[] = {
 135         "IXGBE_VFCTRL",
 136         "IXGBE_VFSTATUS",
 137         "IXGBE_VFLINKS",
 138         "IXGBE_VFRXMEMWRAP",
 139         "IXGBE_VFFRTIMER",
 140         "IXGBE_VTEICR",
 141         "IXGBE_VTEICS",
 142         "IXGBE_VTEIMS",
 143         "IXGBE_VTEIMC",
 144         "IXGBE_VTEIAC",
 145         "IXGBE_VTEIAM",
 146         "IXGBE_VTEITR",
 147         "IXGBE_VTIVAR",
 148         "IXGBE_VTIVAR_MISC",
 149         "IXGBE_VFRDBAL0",
 150         "IXGBE_VFRDBAL1",
 151         "IXGBE_VFRDBAH0",
 152         "IXGBE_VFRDBAH1",
 153         "IXGBE_VFRDLEN0",
 154         "IXGBE_VFRDLEN1",
 155         "IXGBE_VFRDH0",
 156         "IXGBE_VFRDH1",
 157         "IXGBE_VFRDT0",
 158         "IXGBE_VFRDT1",
 159         "IXGBE_VFRXDCTL0",
 160         "IXGBE_VFRXDCTL1",
 161         "IXGBE_VFSRRCTL0",
 162         "IXGBE_VFSRRCTL1",
 163         "IXGBE_VFPSRTYPE",
 164         "IXGBE_VFTDBAL0",
 165         "IXGBE_VFTDBAL1",
 166         "IXGBE_VFTDBAH0",
 167         "IXGBE_VFTDBAH1",
 168         "IXGBE_VFTDLEN0",
 169         "IXGBE_VFTDLEN1",
 170         "IXGBE_VFTDH0",
 171         "IXGBE_VFTDH1",
 172         "IXGBE_VFTDT0",
 173         "IXGBE_VFTDT1",
 174         "IXGBE_VFTXDCTL0",
 175         "IXGBE_VFTXDCTL1",
 176         "IXGBE_VFTDWBAL0",
 177         "IXGBE_VFTDWBAL1",
 178         "IXGBE_VFTDWBAH0",
 179         "IXGBE_VFTDWBAH1"
 180 };
 181
 182
 183 static int ixgbevf_get_regs_len(struct net_device *netdev)
 184 {
 185         return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32);
 186 }
 187
 188 static void ixgbevf_get_regs(struct net_device *netdev,
 189                              struct ethtool_regs *regs,
 190                              void *p)
 191 {
 192         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 193         struct ixgbe_hw *hw = &adapter->hw;
 194         u32 *regs_buff = p;
 195         u32 regs_len = ixgbevf_get_regs_len(netdev);
 196         u8 i;
 197
 198         memset(p, 0, regs_len);
 199
 200         regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
 201
 202         /* General Registers */
 203         regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
 204         regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
 205         regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 206         regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
 207         regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
 208
 209         /* Interrupt */
 210         /* don't read EICR because it can clear interrupt causes, instead
 211          * read EICS which is a shadow but doesn't clear EICR */
 212         regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 213         regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 214         regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
 215         regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
 216         regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
 217         regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
 218         regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
 219         regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
 220         regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
 221
 222         /* Receive DMA */
 223         for (i = 0; i < 2; i++)
 224                 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
 225         for (i = 0; i < 2; i++)
 226                 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
 227         for (i = 0; i < 2; i++)
 228                 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
 229         for (i = 0; i < 2; i++)
 230                 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
 231         for (i = 0; i < 2; i++)
 232                 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
 233         for (i = 0; i < 2; i++)
 234                 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
 235         for (i = 0; i < 2; i++)
 236                 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
 237
 238         /* Receive */
 239         regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
 240
 241         /* Transmit */
 242         for (i = 0; i < 2; i++)
 243                 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
 244         for (i = 0; i < 2; i++)
 245                 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
 246         for (i = 0; i < 2; i++)
 247                 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
 248         for (i = 0; i < 2; i++)
 249                 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
 250         for (i = 0; i < 2; i++)
 251                 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
 252         for (i = 0; i < 2; i++)
 253                 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
 254         for (i = 0; i < 2; i++)
 255                 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
 256         for (i = 0; i < 2; i++)
 257                 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
 258
 259         for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++)
 260                 hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]);
 261 }
 262
 263 static void ixgbevf_get_drvinfo(struct net_device *netdev,
 264                                 struct ethtool_drvinfo *drvinfo)
 265 {
 266         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 267
 268         strlcpy(drvinfo->driver, ixgbevf_driver_name, 32);
 269         strlcpy(drvinfo->version, ixgbevf_driver_version, 32);
 270
 271         strlcpy(drvinfo->fw_version, "N/A", 4);
 272         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
 273 }
 274
 275 static void ixgbevf_get_ringparam(struct net_device *netdev,
 276                                   struct ethtool_ringparam *ring)
 277 {
 278         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 279         struct ixgbevf_ring *tx_ring = adapter->tx_ring;
 280         struct ixgbevf_ring *rx_ring = adapter->rx_ring;
 281
 282         ring->rx_max_pending = IXGBEVF_MAX_RXD;
 283         ring->tx_max_pending = IXGBEVF_MAX_TXD;
 284         ring->rx_pending = rx_ring->count;
 285         ring->tx_pending = tx_ring->count;
 286 }
 287
 288 static int ixgbevf_set_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 = NULL, *rx_ring = NULL;
 293         int i, err = 0;
 294         u32 new_rx_count, new_tx_count;
 295
 296         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 297                 return -EINVAL;
 298
 299         new_rx_count = max(ring->rx_pending, (u32)IXGBEVF_MIN_RXD);
 300         new_rx_count = min(new_rx_count, (u32)IXGBEVF_MAX_RXD);
 301         new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
 302
 303         new_tx_count = max(ring->tx_pending, (u32)IXGBEVF_MIN_TXD);
 304         new_tx_count = min(new_tx_count, (u32)IXGBEVF_MAX_TXD);
 305         new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
 306
 307         if ((new_tx_count == adapter->tx_ring->count) &&
 308             (new_rx_count == adapter->rx_ring->count)) {
 309                 /* nothing to do */
 310                 return 0;
 311         }
 312
 313         while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
 314                 msleep(1);
 315
 316         /*
 317          * If the adapter isn't up and running then just set the
 318          * new parameters and scurry for the exits.
 319          */
 320         if (!netif_running(adapter->netdev)) {
 321                 for (i = 0; i < adapter->num_tx_queues; i++)
 322                         adapter->tx_ring[i].count = new_tx_count;
 323                 for (i = 0; i < adapter->num_rx_queues; i++)
 324                         adapter->rx_ring[i].count = new_rx_count;
 325                 adapter->tx_ring_count = new_tx_count;
 326                 adapter->rx_ring_count = new_rx_count;
 327                 goto clear_reset;
 328         }
 329
 330         tx_ring = kcalloc(adapter->num_tx_queues,
 331                           sizeof(struct ixgbevf_ring), GFP_KERNEL);
 332         if (!tx_ring) {
 333                 err = -ENOMEM;
 334                 goto clear_reset;
 335         }
 336
 337         rx_ring = kcalloc(adapter->num_rx_queues,
 338                           sizeof(struct ixgbevf_ring), GFP_KERNEL);
 339         if (!rx_ring) {
 340                 err = -ENOMEM;
 341                 goto err_rx_setup;
 342         }
 343
 344         ixgbevf_down(adapter);
 345
 346         memcpy(tx_ring, adapter->tx_ring,
 347                adapter->num_tx_queues * sizeof(struct ixgbevf_ring));
 348         for (i = 0; i < adapter->num_tx_queues; i++) {
 349                 tx_ring[i].count = new_tx_count;
 350                 err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]);
 351                 if (err) {
 352                         while (i) {
 353                                 i--;
 354                                 ixgbevf_free_tx_resources(adapter,
 355                                                           &tx_ring[i]);
 356                         }
 357                         goto err_tx_ring_setup;
 358                 }
 359                 tx_ring[i].v_idx = adapter->tx_ring[i].v_idx;
 360         }
 361
 362         memcpy(rx_ring, adapter->rx_ring,
 363                adapter->num_rx_queues * sizeof(struct ixgbevf_ring));
 364         for (i = 0; i < adapter->num_rx_queues; i++) {
 365                 rx_ring[i].count = new_rx_count;
 366                 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]);
 367                 if (err) {
 368                         while (i) {
 369                                 i--;
 370                                 ixgbevf_free_rx_resources(adapter,
 371                                                           &rx_ring[i]);
 372                         }
 373                                 goto err_rx_ring_setup;
 374                 }
 375                 rx_ring[i].v_idx = adapter->rx_ring[i].v_idx;
 376         }
 377
 378         /*
 379          * Only switch to new rings if all the prior allocations
 380          * and ring setups have succeeded.
 381          */
 382         kfree(adapter->tx_ring);
 383         adapter->tx_ring = tx_ring;
 384         adapter->tx_ring_count = new_tx_count;
 385
 386         kfree(adapter->rx_ring);
 387         adapter->rx_ring = rx_ring;
 388         adapter->rx_ring_count = new_rx_count;
 389
 390         /* success! */
 391         ixgbevf_up(adapter);
 392
 393         goto clear_reset;
 394
 395 err_rx_ring_setup:
 396         for(i = 0; i < adapter->num_tx_queues; i++)
 397                 ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
 398
 399 err_tx_ring_setup:
 400         kfree(rx_ring);
 401
 402 err_rx_setup:
 403         kfree(tx_ring);
 404
 405 clear_reset:
 406         clear_bit(__IXGBEVF_RESETTING, &adapter->state);
 407         return err;
 408 }
 409
 410 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
 411 {
 412        switch (stringset) {
 413        case ETH_SS_TEST:
 414                return IXGBE_TEST_LEN;
 415        case ETH_SS_STATS:
 416                return IXGBE_GLOBAL_STATS_LEN;
 417        default:
 418                return -EINVAL;
 419        }
 420 }
 421
 422 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
 423                                       struct ethtool_stats *stats, u64 *data)
 424 {
 425         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 426         int i;
 427
 428         ixgbevf_update_stats(adapter);
 429         for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 430                 char *p = (char *)adapter +
 431                         ixgbe_gstrings_stats[i].stat_offset;
 432                 char *b = (char *)adapter +
 433                         ixgbe_gstrings_stats[i].base_stat_offset;
 434                 char *r = (char *)adapter +
 435                         ixgbe_gstrings_stats[i].saved_reset_offset;
 436                 data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat ==
 437                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p) -
 438                           ((ixgbe_gstrings_stats[i].sizeof_stat ==
 439                             sizeof(u64)) ? *(u64 *)b : *(u32 *)b) +
 440                           ((ixgbe_gstrings_stats[i].sizeof_stat ==
 441                             sizeof(u64)) ? *(u64 *)r : *(u32 *)r);
 442         }
 443 }
 444
 445 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
 446                                 u8 *data)
 447 {
 448         char *p = (char *)data;
 449         int i;
 450
 451         switch (stringset) {
 452         case ETH_SS_TEST:
 453                 memcpy(data, *ixgbe_gstrings_test,
 454                        IXGBE_TEST_LEN * ETH_GSTRING_LEN);
 455                 break;
 456         case ETH_SS_STATS:
 457                 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 458                         memcpy(p, ixgbe_gstrings_stats[i].stat_string,
 459                                ETH_GSTRING_LEN);
 460                         p += ETH_GSTRING_LEN;
 461                 }
 462                 break;
 463         }
 464 }
 465
 466 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
 467 {
 468         struct ixgbe_hw *hw = &adapter->hw;
 469         bool link_up;
 470         u32 link_speed = 0;
 471         *data = 0;
 472
 473         hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
 474         if (!link_up)
 475                 *data = 1;
 476
 477         return *data;
 478 }
 479
 480 /* ethtool register test data */
 481 struct ixgbevf_reg_test {
 482         u16 reg;
 483         u8  array_len;
 484         u8  test_type;
 485         u32 mask;
 486         u32 write;
 487 };
 488
 489 /* In the hardware, registers are laid out either singly, in arrays
 490  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
 491  * most tests take place on arrays or single registers (handled
 492  * as a single-element array) and special-case the tables.
 493  * Table tests are always pattern tests.
 494  *
 495  * We also make provision for some required setup steps by specifying
 496  * registers to be written without any read-back testing.
 497  */
 498
 499 #define PATTERN_TEST    1
 500 #define SET_READ_TEST   2
 501 #define WRITE_NO_TEST   3
 502 #define TABLE32_TEST    4
 503 #define TABLE64_TEST_LO 5
 504 #define TABLE64_TEST_HI 6
 505
 506 /* default VF register test */
 507 static const struct ixgbevf_reg_test reg_test_vf[] = {
 508         { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
 509         { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 510         { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
 511         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
 512         { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
 513         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
 514         { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
 515         { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 516         { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
 517         { 0, 0, 0, 0 }
 518 };
 519
 520 static const u32 register_test_patterns[] = {
 521         0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 522 };
 523
 524 #define REG_PATTERN_TEST(R, M, W)                                             \
 525 {                                                                             \
 526         u32 pat, val, before;                                                 \
 527         for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {      \
 528                 before = readl(adapter->hw.hw_addr + R);                      \
 529                 writel((register_test_patterns[pat] & W),                     \
 530                        (adapter->hw.hw_addr + R));                            \
 531                 val = readl(adapter->hw.hw_addr + R);                         \
 532                 if (val != (register_test_patterns[pat] & W & M)) {           \
 533                         hw_dbg(&adapter->hw,                                  \
 534                         "pattern test reg %04X failed: got "                  \
 535                         "0x%08X expected 0x%08X\n",                           \
 536                         R, val, (register_test_patterns[pat] & W & M));       \
 537                         *data = R;                                            \
 538                         writel(before, adapter->hw.hw_addr + R);              \
 539                         return 1;                                             \
 540                 }                                                             \
 541                 writel(before, adapter->hw.hw_addr + R);                      \
 542         }                                                                     \
 543 }
 544
 545 #define REG_SET_AND_CHECK(R, M, W)                                            \
 546 {                                                                             \
 547         u32 val, before;                                                      \
 548         before = readl(adapter->hw.hw_addr + R);                              \
 549         writel((W & M), (adapter->hw.hw_addr + R));                           \
 550         val = readl(adapter->hw.hw_addr + R);                                 \
 551         if ((W & M) != (val & M)) {                                           \
 552                 printk(KERN_ERR "set/check reg %04X test failed: got 0x%08X " \
 553                                  "expected 0x%08X\n", R, (val & M), (W & M)); \
 554                 *data = R;                                                    \
 555                 writel(before, (adapter->hw.hw_addr + R));                    \
 556                 return 1;                                                     \
 557         }                                                                     \
 558         writel(before, (adapter->hw.hw_addr + R));                            \
 559 }
 560
 561 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
 562 {
 563         const struct ixgbevf_reg_test *test;
 564         u32 i;
 565
 566         test = reg_test_vf;
 567
 568         /*
 569          * Perform the register test, looping through the test table
 570          * until we either fail or reach the null entry.
 571          */
 572         while (test->reg) {
 573                 for (i = 0; i < test->array_len; i++) {
 574                         switch (test->test_type) {
 575                         case PATTERN_TEST:
 576                                 REG_PATTERN_TEST(test->reg + (i * 0x40),
 577                                                 test->mask,
 578                                                 test->write);
 579                                 break;
 580                         case SET_READ_TEST:
 581                                 REG_SET_AND_CHECK(test->reg + (i * 0x40),
 582                                                 test->mask,
 583                                                 test->write);
 584                                 break;
 585                         case WRITE_NO_TEST:
 586                                 writel(test->write,
 587                                        (adapter->hw.hw_addr + test->reg)
 588                                        + (i * 0x40));
 589                                 break;
 590                         case TABLE32_TEST:
 591                                 REG_PATTERN_TEST(test->reg + (i * 4),
 592                                                 test->mask,
 593                                                 test->write);
 594                                 break;
 595                         case TABLE64_TEST_LO:
 596                                 REG_PATTERN_TEST(test->reg + (i * 8),
 597                                                 test->mask,
 598                                                 test->write);
 599                                 break;
 600                         case TABLE64_TEST_HI:
 601                                 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
 602                                                 test->mask,
 603                                                 test->write);
 604                                 break;
 605                         }
 606                 }
 607                 test++;
 608         }
 609
 610         *data = 0;
 611         return *data;
 612 }
 613
 614 static void ixgbevf_diag_test(struct net_device *netdev,
 615                               struct ethtool_test *eth_test, u64 *data)
 616 {
 617         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 618         bool if_running = netif_running(netdev);
 619
 620         set_bit(__IXGBEVF_TESTING, &adapter->state);
 621         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 622                 /* Offline tests */
 623
 624                 hw_dbg(&adapter->hw, "offline testing starting\n");
 625
 626                 /* Link test performed before hardware reset so autoneg doesn't
 627                  * interfere with test result */
 628                 if (ixgbevf_link_test(adapter, &data[1]))
 629                         eth_test->flags |= ETH_TEST_FL_FAILED;
 630
 631                 if (if_running)
 632                         /* indicate we're in test mode */
 633                         dev_close(netdev);
 634                 else
 635                         ixgbevf_reset(adapter);
 636
 637                 hw_dbg(&adapter->hw, "register testing starting\n");
 638                 if (ixgbevf_reg_test(adapter, &data[0]))
 639                         eth_test->flags |= ETH_TEST_FL_FAILED;
 640
 641                 ixgbevf_reset(adapter);
 642
 643                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 644                 if (if_running)
 645                         dev_open(netdev);
 646         } else {
 647                 hw_dbg(&adapter->hw, "online testing starting\n");
 648                 /* Online tests */
 649                 if (ixgbevf_link_test(adapter, &data[1]))
 650                         eth_test->flags |= ETH_TEST_FL_FAILED;
 651
 652                 /* Online tests aren't run; pass by default */
 653                 data[0] = 0;
 654
 655                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 656         }
 657         msleep_interruptible(4 * 1000);
 658 }
 659
 660 static int ixgbevf_nway_reset(struct net_device *netdev)
 661 {
 662         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 663
 664         if (netif_running(netdev)) {
 665                 if (!adapter->dev_closed)
 666                         ixgbevf_reinit_locked(adapter);
 667         }
 668
 669         return 0;
 670 }
 671
 672 static struct ethtool_ops ixgbevf_ethtool_ops = {
 673         .get_settings           = ixgbevf_get_settings,
 674         .get_drvinfo            = ixgbevf_get_drvinfo,
 675         .get_regs_len           = ixgbevf_get_regs_len,
 676         .get_regs               = ixgbevf_get_regs,
 677         .nway_reset             = ixgbevf_nway_reset,
 678         .get_link               = ethtool_op_get_link,
 679         .get_ringparam          = ixgbevf_get_ringparam,
 680         .set_ringparam          = ixgbevf_set_ringparam,
 681         .get_msglevel           = ixgbevf_get_msglevel,
 682         .set_msglevel           = ixgbevf_set_msglevel,
 683         .self_test              = ixgbevf_diag_test,
 684         .get_sset_count         = ixgbevf_get_sset_count,
 685         .get_strings            = ixgbevf_get_strings,
 686         .get_ethtool_stats      = ixgbevf_get_ethtool_stats,
 687 };
 688
 689 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
 690 {
 691         SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);
 692 }