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         struct {
  49                 int sizeof_stat;
  50                 int stat_offset;
  51                 int base_stat_offset;
  52                 int saved_reset_offset;
  53         };
  54 };
  55
  56 #define IXGBEVF_STAT(m, b, r) { \
  57         .sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, m), \
  58         .stat_offset = offsetof(struct ixgbevf_adapter, m), \
  59         .base_stat_offset = offsetof(struct ixgbevf_adapter, b), \
  60         .saved_reset_offset = offsetof(struct ixgbevf_adapter, r) \
  61 }
  62
  63 #define IXGBEVF_ZSTAT(m) { \
  64         .sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, m), \
  65         .stat_offset = offsetof(struct ixgbevf_adapter, m), \
  66         .base_stat_offset = -1, \
  67         .saved_reset_offset = -1 \
  68 }
  69
  70 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
  71         {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
  72                                     stats.saved_reset_vfgprc)},
  73         {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
  74                                     stats.saved_reset_vfgptc)},
  75         {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
  76                                   stats.saved_reset_vfgorc)},
  77         {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
  78                                   stats.saved_reset_vfgotc)},
  79         {"tx_busy", IXGBEVF_ZSTAT(tx_busy)},
  80         {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
  81                                    stats.saved_reset_vfmprc)},
  82         {"rx_csum_offload_good", IXGBEVF_ZSTAT(hw_csum_rx_good)},
  83         {"rx_csum_offload_errors", IXGBEVF_ZSTAT(hw_csum_rx_error)},
  84         {"tx_csum_offload_ctxt", IXGBEVF_ZSTAT(hw_csum_tx_good)},
  85 #ifdef BP_EXTENDED_STATS
  86         {"rx_bp_poll_yield", IXGBEVF_ZSTAT(bp_rx_yields)},
  87         {"rx_bp_cleaned", IXGBEVF_ZSTAT(bp_rx_cleaned)},
  88         {"rx_bp_misses", IXGBEVF_ZSTAT(bp_rx_missed)},
  89         {"tx_bp_napi_yield", IXGBEVF_ZSTAT(bp_tx_yields)},
  90         {"tx_bp_cleaned", IXGBEVF_ZSTAT(bp_tx_cleaned)},
  91         {"tx_bp_misses", IXGBEVF_ZSTAT(bp_tx_missed)},
  92 #endif
  93 };
  94
  95 #define IXGBE_QUEUE_STATS_LEN 0
  96 #define IXGBE_GLOBAL_STATS_LEN  ARRAY_SIZE(ixgbe_gstrings_stats)
  97
  98 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
  99 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
 100         "Register test  (offline)",
 101         "Link test   (on/offline)"
 102 };
 103 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
 104
 105 static int ixgbevf_get_settings(struct net_device *netdev,
 106                                 struct ethtool_cmd *ecmd)
 107 {
 108         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 109         struct ixgbe_hw *hw = &adapter->hw;
 110         u32 link_speed = 0;
 111         bool link_up;
 112
 113         ecmd->supported = SUPPORTED_10000baseT_Full;
 114         ecmd->autoneg = AUTONEG_DISABLE;
 115         ecmd->transceiver = XCVR_DUMMY1;
 116         ecmd->port = -1;
 117
 118         hw->mac.get_link_status = 1;
 119         hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
 120
 121         if (link_up) {
 122                 __u32 speed = SPEED_10000;
 123                 switch (link_speed) {
 124                 case IXGBE_LINK_SPEED_10GB_FULL:
 125                         speed = SPEED_10000;
 126                         break;
 127                 case IXGBE_LINK_SPEED_1GB_FULL:
 128                         speed = SPEED_1000;
 129                         break;
 130                 case IXGBE_LINK_SPEED_100_FULL:
 131                         speed = SPEED_100;
 132                         break;
 133                 }
 134
 135                 ethtool_cmd_speed_set(ecmd, speed);
 136                 ecmd->duplex = DUPLEX_FULL;
 137         } else {
 138                 ethtool_cmd_speed_set(ecmd, -1);
 139                 ecmd->duplex = -1;
 140         }
 141
 142         return 0;
 143 }
 144
 145 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
 146 {
 147         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 148         return adapter->msg_enable;
 149 }
 150
 151 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
 152 {
 153         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 154         adapter->msg_enable = data;
 155 }
 156
 157 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
 158
 159 static int ixgbevf_get_regs_len(struct net_device *netdev)
 160 {
 161 #define IXGBE_REGS_LEN 45
 162         return IXGBE_REGS_LEN * sizeof(u32);
 163 }
 164
 165 static void ixgbevf_get_regs(struct net_device *netdev,
 166                              struct ethtool_regs *regs,
 167                              void *p)
 168 {
 169         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 170         struct ixgbe_hw *hw = &adapter->hw;
 171         u32 *regs_buff = p;
 172         u32 regs_len = ixgbevf_get_regs_len(netdev);
 173         u8 i;
 174
 175         memset(p, 0, regs_len);
 176
 177         regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
 178
 179         /* General Registers */
 180         regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
 181         regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
 182         regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 183         regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
 184         regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
 185
 186         /* Interrupt */
 187         /* don't read EICR because it can clear interrupt causes, instead
 188          * read EICS which is a shadow but doesn't clear EICR */
 189         regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 190         regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
 191         regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
 192         regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
 193         regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
 194         regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
 195         regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
 196         regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
 197         regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
 198
 199         /* Receive DMA */
 200         for (i = 0; i < 2; i++)
 201                 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
 202         for (i = 0; i < 2; i++)
 203                 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
 204         for (i = 0; i < 2; i++)
 205                 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
 206         for (i = 0; i < 2; i++)
 207                 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
 208         for (i = 0; i < 2; i++)
 209                 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
 210         for (i = 0; i < 2; i++)
 211                 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
 212         for (i = 0; i < 2; i++)
 213                 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
 214
 215         /* Receive */
 216         regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
 217
 218         /* Transmit */
 219         for (i = 0; i < 2; i++)
 220                 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
 221         for (i = 0; i < 2; i++)
 222                 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
 223         for (i = 0; i < 2; i++)
 224                 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
 225         for (i = 0; i < 2; i++)
 226                 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
 227         for (i = 0; i < 2; i++)
 228                 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
 229         for (i = 0; i < 2; i++)
 230                 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
 231         for (i = 0; i < 2; i++)
 232                 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
 233         for (i = 0; i < 2; i++)
 234                 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
 235 }
 236
 237 static void ixgbevf_get_drvinfo(struct net_device *netdev,
 238                                 struct ethtool_drvinfo *drvinfo)
 239 {
 240         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 241
 242         strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
 243         strlcpy(drvinfo->version, ixgbevf_driver_version,
 244                 sizeof(drvinfo->version));
 245         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 246                 sizeof(drvinfo->bus_info));
 247 }
 248
 249 static void ixgbevf_get_ringparam(struct net_device *netdev,
 250                                   struct ethtool_ringparam *ring)
 251 {
 252         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 253
 254         ring->rx_max_pending = IXGBEVF_MAX_RXD;
 255         ring->tx_max_pending = IXGBEVF_MAX_TXD;
 256         ring->rx_pending = adapter->rx_ring_count;
 257         ring->tx_pending = adapter->tx_ring_count;
 258 }
 259
 260 static int ixgbevf_set_ringparam(struct net_device *netdev,
 261                                  struct ethtool_ringparam *ring)
 262 {
 263         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 264         struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
 265         u32 new_rx_count, new_tx_count;
 266         int i, err = 0;
 267
 268         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 269                 return -EINVAL;
 270
 271         new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD);
 272         new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD);
 273         new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
 274
 275         new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD);
 276         new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD);
 277         new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
 278
 279         /* if nothing to do return success */
 280         if ((new_tx_count == adapter->tx_ring_count) &&
 281             (new_rx_count == adapter->rx_ring_count))
 282                 return 0;
 283
 284         while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
 285                 usleep_range(1000, 2000);
 286
 287         if (!netif_running(adapter->netdev)) {
 288                 for (i = 0; i < adapter->num_tx_queues; i++)
 289                         adapter->tx_ring[i]->count = new_tx_count;
 290                 for (i = 0; i < adapter->num_rx_queues; i++)
 291                         adapter->rx_ring[i]->count = new_rx_count;
 292                 adapter->tx_ring_count = new_tx_count;
 293                 adapter->rx_ring_count = new_rx_count;
 294                 goto clear_reset;
 295         }
 296
 297         if (new_tx_count != adapter->tx_ring_count) {
 298                 tx_ring = vmalloc(adapter->num_tx_queues * sizeof(*tx_ring));
 299                 if (!tx_ring) {
 300                         err = -ENOMEM;
 301                         goto clear_reset;
 302                 }
 303
 304                 for (i = 0; i < adapter->num_tx_queues; i++) {
 305                         /* clone ring and setup updated count */
 306                         tx_ring[i] = *adapter->tx_ring[i];
 307                         tx_ring[i].count = new_tx_count;
 308                         err = ixgbevf_setup_tx_resources(&tx_ring[i]);
 309                         if (err) {
 310                                 while (i) {
 311                                         i--;
 312                                         ixgbevf_free_tx_resources(&tx_ring[i]);
 313                                 }
 314
 315                                 vfree(tx_ring);
 316                                 tx_ring = NULL;
 317
 318                                 goto clear_reset;
 319                         }
 320                 }
 321         }
 322
 323         if (new_rx_count != adapter->rx_ring_count) {
 324                 rx_ring = vmalloc(adapter->num_rx_queues * sizeof(*rx_ring));
 325                 if (!rx_ring) {
 326                         err = -ENOMEM;
 327                         goto clear_reset;
 328                 }
 329
 330                 for (i = 0; i < adapter->num_rx_queues; i++) {
 331                         /* clone ring and setup updated count */
 332                         rx_ring[i] = *adapter->rx_ring[i];
 333                         rx_ring[i].count = new_rx_count;
 334                         err = ixgbevf_setup_rx_resources(&rx_ring[i]);
 335                         if (err) {
 336                                 while (i) {
 337                                         i--;
 338                                         ixgbevf_free_rx_resources(&rx_ring[i]);
 339                                 }
 340
 341                                 vfree(rx_ring);
 342                                 rx_ring = NULL;
 343
 344                                 goto clear_reset;
 345                         }
 346                 }
 347         }
 348
 349         /* bring interface down to prepare for update */
 350         ixgbevf_down(adapter);
 351
 352         /* Tx */
 353         if (tx_ring) {
 354                 for (i = 0; i < adapter->num_tx_queues; i++) {
 355                         ixgbevf_free_tx_resources(adapter->tx_ring[i]);
 356                         *adapter->tx_ring[i] = tx_ring[i];
 357                 }
 358                 adapter->tx_ring_count = new_tx_count;
 359
 360                 vfree(tx_ring);
 361                 tx_ring = NULL;
 362         }
 363
 364         /* Rx */
 365         if (rx_ring) {
 366                 for (i = 0; i < adapter->num_rx_queues; i++) {
 367                         ixgbevf_free_rx_resources(adapter->rx_ring[i]);
 368                         *adapter->rx_ring[i] = rx_ring[i];
 369                 }
 370                 adapter->rx_ring_count = new_rx_count;
 371
 372                 vfree(rx_ring);
 373                 rx_ring = NULL;
 374         }
 375
 376         /* restore interface using new values */
 377         ixgbevf_up(adapter);
 378
 379 clear_reset:
 380         /* free Tx resources if Rx error is encountered */
 381         if (tx_ring) {
 382                 for (i = 0; i < adapter->num_tx_queues; i++)
 383                         ixgbevf_free_tx_resources(&tx_ring[i]);
 384                 vfree(tx_ring);
 385         }
 386
 387         clear_bit(__IXGBEVF_RESETTING, &adapter->state);
 388         return err;
 389 }
 390
 391 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
 392 {
 393        switch (stringset) {
 394        case ETH_SS_TEST:
 395                return IXGBE_TEST_LEN;
 396        case ETH_SS_STATS:
 397                return IXGBE_GLOBAL_STATS_LEN;
 398        default:
 399                return -EINVAL;
 400        }
 401 }
 402
 403 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
 404                                       struct ethtool_stats *stats, u64 *data)
 405 {
 406         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 407         char *base = (char *) adapter;
 408         int i;
 409 #ifdef BP_EXTENDED_STATS
 410         u64 rx_yields = 0, rx_cleaned = 0, rx_missed = 0,
 411             tx_yields = 0, tx_cleaned = 0, tx_missed = 0;
 412
 413         for (i = 0; i < adapter->num_rx_queues; i++) {
 414                 rx_yields += adapter->rx_ring[i]->stats.yields;
 415                 rx_cleaned += adapter->rx_ring[i]->stats.cleaned;
 416                 rx_yields += adapter->rx_ring[i]->stats.yields;
 417         }
 418
 419         for (i = 0; i < adapter->num_tx_queues; i++) {
 420                 tx_yields += adapter->tx_ring[i]->stats.yields;
 421                 tx_cleaned += adapter->tx_ring[i]->stats.cleaned;
 422                 tx_yields += adapter->tx_ring[i]->stats.yields;
 423         }
 424
 425         adapter->bp_rx_yields = rx_yields;
 426         adapter->bp_rx_cleaned = rx_cleaned;
 427         adapter->bp_rx_missed = rx_missed;
 428
 429         adapter->bp_tx_yields = tx_yields;
 430         adapter->bp_tx_cleaned = tx_cleaned;
 431         adapter->bp_tx_missed = tx_missed;
 432 #endif
 433
 434         ixgbevf_update_stats(adapter);
 435         for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 436                 char *p = base + ixgbe_gstrings_stats[i].stat_offset;
 437                 char *b = base + ixgbe_gstrings_stats[i].base_stat_offset;
 438                 char *r = base + ixgbe_gstrings_stats[i].saved_reset_offset;
 439
 440                 if (ixgbe_gstrings_stats[i].sizeof_stat == sizeof(u64)) {
 441                         if (ixgbe_gstrings_stats[i].base_stat_offset >= 0)
 442                                 data[i] = *(u64 *)p - *(u64 *)b + *(u64 *)r;
 443                         else
 444                                 data[i] = *(u64 *)p;
 445                 } else {
 446                         if (ixgbe_gstrings_stats[i].base_stat_offset >= 0)
 447                                 data[i] = *(u32 *)p - *(u32 *)b + *(u32 *)r;
 448                         else
 449                                 data[i] = *(u32 *)p;
 450                 }
 451         }
 452 }
 453
 454 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
 455                                 u8 *data)
 456 {
 457         char *p = (char *)data;
 458         int i;
 459
 460         switch (stringset) {
 461         case ETH_SS_TEST:
 462                 memcpy(data, *ixgbe_gstrings_test,
 463                        IXGBE_TEST_LEN * ETH_GSTRING_LEN);
 464                 break;
 465         case ETH_SS_STATS:
 466                 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
 467                         memcpy(p, ixgbe_gstrings_stats[i].stat_string,
 468                                ETH_GSTRING_LEN);
 469                         p += ETH_GSTRING_LEN;
 470                 }
 471                 break;
 472         }
 473 }
 474
 475 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
 476 {
 477         struct ixgbe_hw *hw = &adapter->hw;
 478         bool link_up;
 479         u32 link_speed = 0;
 480         *data = 0;
 481
 482         hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
 483         if (!link_up)
 484                 *data = 1;
 485
 486         return *data;
 487 }
 488
 489 /* ethtool register test data */
 490 struct ixgbevf_reg_test {
 491         u16 reg;
 492         u8  array_len;
 493         u8  test_type;
 494         u32 mask;
 495         u32 write;
 496 };
 497
 498 /* In the hardware, registers are laid out either singly, in arrays
 499  * spaced 0x40 bytes apart, or in contiguous tables.  We assume
 500  * most tests take place on arrays or single registers (handled
 501  * as a single-element array) and special-case the tables.
 502  * Table tests are always pattern tests.
 503  *
 504  * We also make provision for some required setup steps by specifying
 505  * registers to be written without any read-back testing.
 506  */
 507
 508 #define PATTERN_TEST    1
 509 #define SET_READ_TEST   2
 510 #define WRITE_NO_TEST   3
 511 #define TABLE32_TEST    4
 512 #define TABLE64_TEST_LO 5
 513 #define TABLE64_TEST_HI 6
 514
 515 /* default VF register test */
 516 static const struct ixgbevf_reg_test reg_test_vf[] = {
 517         { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
 518         { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 519         { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
 520         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
 521         { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
 522         { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
 523         { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
 524         { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
 525         { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
 526         { 0, 0, 0, 0 }
 527 };
 528
 529 static const u32 register_test_patterns[] = {
 530         0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
 531 };
 532
 533 #define REG_PATTERN_TEST(R, M, W)                                             \
 534 {                                                                             \
 535         u32 pat, val, before;                                                 \
 536         for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {      \
 537                 before = readl(adapter->hw.hw_addr + R);                      \
 538                 writel((register_test_patterns[pat] & W),                     \
 539                        (adapter->hw.hw_addr + R));                            \
 540                 val = readl(adapter->hw.hw_addr + R);                         \
 541                 if (val != (register_test_patterns[pat] & W & M)) {           \
 542                         hw_dbg(&adapter->hw,                                  \
 543                         "pattern test reg %04X failed: got "                  \
 544                         "0x%08X expected 0x%08X\n",                           \
 545                         R, val, (register_test_patterns[pat] & W & M));       \
 546                         *data = R;                                            \
 547                         writel(before, adapter->hw.hw_addr + R);              \
 548                         return 1;                                             \
 549                 }                                                             \
 550                 writel(before, adapter->hw.hw_addr + R);                      \
 551         }                                                                     \
 552 }
 553
 554 #define REG_SET_AND_CHECK(R, M, W)                                            \
 555 {                                                                             \
 556         u32 val, before;                                                      \
 557         before = readl(adapter->hw.hw_addr + R);                              \
 558         writel((W & M), (adapter->hw.hw_addr + R));                           \
 559         val = readl(adapter->hw.hw_addr + R);                                 \
 560         if ((W & M) != (val & M)) {                                           \
 561                 pr_err("set/check reg %04X test failed: got 0x%08X expected " \
 562                        "0x%08X\n", R, (val & M), (W & M));                    \
 563                 *data = R;                                                    \
 564                 writel(before, (adapter->hw.hw_addr + R));                    \
 565                 return 1;                                                     \
 566         }                                                                     \
 567         writel(before, (adapter->hw.hw_addr + R));                            \
 568 }
 569
 570 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
 571 {
 572         const struct ixgbevf_reg_test *test;
 573         u32 i;
 574
 575         test = reg_test_vf;
 576
 577         /*
 578          * Perform the register test, looping through the test table
 579          * until we either fail or reach the null entry.
 580          */
 581         while (test->reg) {
 582                 for (i = 0; i < test->array_len; i++) {
 583                         switch (test->test_type) {
 584                         case PATTERN_TEST:
 585                                 REG_PATTERN_TEST(test->reg + (i * 0x40),
 586                                                 test->mask,
 587                                                 test->write);
 588                                 break;
 589                         case SET_READ_TEST:
 590                                 REG_SET_AND_CHECK(test->reg + (i * 0x40),
 591                                                 test->mask,
 592                                                 test->write);
 593                                 break;
 594                         case WRITE_NO_TEST:
 595                                 writel(test->write,
 596                                        (adapter->hw.hw_addr + test->reg)
 597                                        + (i * 0x40));
 598                                 break;
 599                         case TABLE32_TEST:
 600                                 REG_PATTERN_TEST(test->reg + (i * 4),
 601                                                 test->mask,
 602                                                 test->write);
 603                                 break;
 604                         case TABLE64_TEST_LO:
 605                                 REG_PATTERN_TEST(test->reg + (i * 8),
 606                                                 test->mask,
 607                                                 test->write);
 608                                 break;
 609                         case TABLE64_TEST_HI:
 610                                 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
 611                                                 test->mask,
 612                                                 test->write);
 613                                 break;
 614                         }
 615                 }
 616                 test++;
 617         }
 618
 619         *data = 0;
 620         return *data;
 621 }
 622
 623 static void ixgbevf_diag_test(struct net_device *netdev,
 624                               struct ethtool_test *eth_test, u64 *data)
 625 {
 626         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 627         bool if_running = netif_running(netdev);
 628
 629         set_bit(__IXGBEVF_TESTING, &adapter->state);
 630         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 631                 /* Offline tests */
 632
 633                 hw_dbg(&adapter->hw, "offline testing starting\n");
 634
 635                 /* Link test performed before hardware reset so autoneg doesn't
 636                  * interfere with test result */
 637                 if (ixgbevf_link_test(adapter, &data[1]))
 638                         eth_test->flags |= ETH_TEST_FL_FAILED;
 639
 640                 if (if_running)
 641                         /* indicate we're in test mode */
 642                         dev_close(netdev);
 643                 else
 644                         ixgbevf_reset(adapter);
 645
 646                 hw_dbg(&adapter->hw, "register testing starting\n");
 647                 if (ixgbevf_reg_test(adapter, &data[0]))
 648                         eth_test->flags |= ETH_TEST_FL_FAILED;
 649
 650                 ixgbevf_reset(adapter);
 651
 652                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 653                 if (if_running)
 654                         dev_open(netdev);
 655         } else {
 656                 hw_dbg(&adapter->hw, "online testing starting\n");
 657                 /* Online tests */
 658                 if (ixgbevf_link_test(adapter, &data[1]))
 659                         eth_test->flags |= ETH_TEST_FL_FAILED;
 660
 661                 /* Online tests aren't run; pass by default */
 662                 data[0] = 0;
 663
 664                 clear_bit(__IXGBEVF_TESTING, &adapter->state);
 665         }
 666         msleep_interruptible(4 * 1000);
 667 }
 668
 669 static int ixgbevf_nway_reset(struct net_device *netdev)
 670 {
 671         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 672
 673         if (netif_running(netdev))
 674                 ixgbevf_reinit_locked(adapter);
 675
 676         return 0;
 677 }
 678
 679 static int ixgbevf_get_coalesce(struct net_device *netdev,
 680                                 struct ethtool_coalesce *ec)
 681 {
 682         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 683
 684         /* only valid if in constant ITR mode */
 685         if (adapter->rx_itr_setting <= 1)
 686                 ec->rx_coalesce_usecs = adapter->rx_itr_setting;
 687         else
 688                 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
 689
 690         /* if in mixed tx/rx queues per vector mode, report only rx settings */
 691         if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
 692                 return 0;
 693
 694         /* only valid if in constant ITR mode */
 695         if (adapter->tx_itr_setting <= 1)
 696                 ec->tx_coalesce_usecs = adapter->tx_itr_setting;
 697         else
 698                 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
 699
 700         return 0;
 701 }
 702
 703 static int ixgbevf_set_coalesce(struct net_device *netdev,
 704                                 struct ethtool_coalesce *ec)
 705 {
 706         struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 707         struct ixgbevf_q_vector *q_vector;
 708         int num_vectors, i;
 709         u16 tx_itr_param, rx_itr_param;
 710
 711         /* don't accept tx specific changes if we've got mixed RxTx vectors */
 712         if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count
 713             && ec->tx_coalesce_usecs)
 714                 return -EINVAL;
 715
 716
 717         if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
 718             (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
 719                 return -EINVAL;
 720
 721         if (ec->rx_coalesce_usecs > 1)
 722                 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
 723         else
 724                 adapter->rx_itr_setting = ec->rx_coalesce_usecs;
 725
 726         if (adapter->rx_itr_setting == 1)
 727                 rx_itr_param = IXGBE_20K_ITR;
 728         else
 729                 rx_itr_param = adapter->rx_itr_setting;
 730
 731
 732         if (ec->tx_coalesce_usecs > 1)
 733                 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
 734         else
 735                 adapter->tx_itr_setting = ec->tx_coalesce_usecs;
 736
 737         if (adapter->tx_itr_setting == 1)
 738                 tx_itr_param = IXGBE_10K_ITR;
 739         else
 740                 tx_itr_param = adapter->tx_itr_setting;
 741
 742         num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
 743
 744         for (i = 0; i < num_vectors; i++) {
 745                 q_vector = adapter->q_vector[i];
 746                 if (q_vector->tx.count && !q_vector->rx.count)
 747                         /* tx only */
 748                         q_vector->itr = tx_itr_param;
 749                 else
 750                         /* rx only or mixed */
 751                         q_vector->itr = rx_itr_param;
 752                 ixgbevf_write_eitr(q_vector);
 753         }
 754
 755         return 0;
 756 }
 757
 758 static const struct ethtool_ops ixgbevf_ethtool_ops = {
 759         .get_settings           = ixgbevf_get_settings,
 760         .get_drvinfo            = ixgbevf_get_drvinfo,
 761         .get_regs_len           = ixgbevf_get_regs_len,
 762         .get_regs               = ixgbevf_get_regs,
 763         .nway_reset             = ixgbevf_nway_reset,
 764         .get_link               = ethtool_op_get_link,
 765         .get_ringparam          = ixgbevf_get_ringparam,
 766         .set_ringparam          = ixgbevf_set_ringparam,
 767         .get_msglevel           = ixgbevf_get_msglevel,
 768         .set_msglevel           = ixgbevf_set_msglevel,
 769         .self_test              = ixgbevf_diag_test,
 770         .get_sset_count         = ixgbevf_get_sset_count,
 771         .get_strings            = ixgbevf_get_strings,
 772         .get_ethtool_stats      = ixgbevf_get_ethtool_stats,
 773         .get_coalesce           = ixgbevf_get_coalesce,
 774         .set_coalesce           = ixgbevf_set_coalesce,
 775 };
 776
 777 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
 778 {
 779         SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);
 780 }