drivers/net/ethernet/sfc/falcon/ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /****************************************************************************
   3  * Driver for Solarflare network controllers and boards
   4  * Copyright 2005-2006 Fen Systems Ltd.
   5  * Copyright 2006-2013 Solarflare Communications Inc.
   6  */
   7
   8 #include <linux/netdevice.h>
   9 #include <linux/ethtool.h>
  10 #include <linux/rtnetlink.h>
  11 #include <linux/in.h>
  12 #include "net_driver.h"
  13 #include "workarounds.h"
  14 #include "selftest.h"
  15 #include "efx.h"
  16 #include "filter.h"
  17 #include "nic.h"
  18
  19 struct ef4_sw_stat_desc {
  20         const char *name;
  21         enum {
  22                 EF4_ETHTOOL_STAT_SOURCE_nic,
  23                 EF4_ETHTOOL_STAT_SOURCE_channel,
  24                 EF4_ETHTOOL_STAT_SOURCE_tx_queue
  25         } source;
  26         unsigned offset;
  27         u64(*get_stat) (void *field); /* Reader function */
  28 };
  29
  30 /* Initialiser for a struct ef4_sw_stat_desc with type-checking */
  31 #define EF4_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
  32                                 get_stat_function) {                    \
  33         .name = #stat_name,                                             \
  34         .source = EF4_ETHTOOL_STAT_SOURCE_##source_name,                \
  35         .offset = ((((field_type *) 0) ==                               \
  36                       &((struct ef4_##source_name *)0)->field) ?        \
  37                     offsetof(struct ef4_##source_name, field) :         \
  38                     offsetof(struct ef4_##source_name, field)),         \
  39         .get_stat = get_stat_function,                                  \
  40 }
  41
  42 static u64 ef4_get_uint_stat(void *field)
  43 {
  44         return *(unsigned int *)field;
  45 }
  46
  47 static u64 ef4_get_atomic_stat(void *field)
  48 {
  49         return atomic_read((atomic_t *) field);
  50 }
  51
  52 #define EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)                \
  53         EF4_ETHTOOL_STAT(field, nic, field,                     \
  54                          atomic_t, ef4_get_atomic_stat)
  55
  56 #define EF4_ETHTOOL_UINT_CHANNEL_STAT(field)                    \
  57         EF4_ETHTOOL_STAT(field, channel, n_##field,             \
  58                          unsigned int, ef4_get_uint_stat)
  59
  60 #define EF4_ETHTOOL_UINT_TXQ_STAT(field)                        \
  61         EF4_ETHTOOL_STAT(tx_##field, tx_queue, field,           \
  62                          unsigned int, ef4_get_uint_stat)
  63
  64 static const struct ef4_sw_stat_desc ef4_sw_stat_desc[] = {
  65         EF4_ETHTOOL_UINT_TXQ_STAT(merge_events),
  66         EF4_ETHTOOL_UINT_TXQ_STAT(pushes),
  67         EF4_ETHTOOL_UINT_TXQ_STAT(cb_packets),
  68         EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
  69         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
  70         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
  71         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
  72         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
  73         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
  74         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
  75         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
  76 };
  77
  78 #define EF4_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(ef4_sw_stat_desc)
  79
  80 #define EF4_ETHTOOL_EEPROM_MAGIC 0xEFAB
  81
  82 /**************************************************************************
  83  *
  84  * Ethtool operations
  85  *
  86  **************************************************************************
  87  */
  88
  89 /* Identify device by flashing LEDs */
  90 static int ef4_ethtool_phys_id(struct net_device *net_dev,
  91                                enum ethtool_phys_id_state state)
  92 {
  93         struct ef4_nic *efx = netdev_priv(net_dev);
  94         enum ef4_led_mode mode = EF4_LED_DEFAULT;
  95
  96         switch (state) {
  97         case ETHTOOL_ID_ON:
  98                 mode = EF4_LED_ON;
  99                 break;
 100         case ETHTOOL_ID_OFF:
 101                 mode = EF4_LED_OFF;
 102                 break;
 103         case ETHTOOL_ID_INACTIVE:
 104                 mode = EF4_LED_DEFAULT;
 105                 break;
 106         case ETHTOOL_ID_ACTIVE:
 107                 return 1;       /* cycle on/off once per second */
 108         }
 109
 110         efx->type->set_id_led(efx, mode);
 111         return 0;
 112 }
 113
 114 /* This must be called with rtnl_lock held. */
 115 static int
 116 ef4_ethtool_get_link_ksettings(struct net_device *net_dev,
 117                                struct ethtool_link_ksettings *cmd)
 118 {
 119         struct ef4_nic *efx = netdev_priv(net_dev);
 120         struct ef4_link_state *link_state = &efx->link_state;
 121
 122         mutex_lock(&efx->mac_lock);
 123         efx->phy_op->get_link_ksettings(efx, cmd);
 124         mutex_unlock(&efx->mac_lock);
 125
 126         /* Both MACs support pause frames (bidirectional and respond-only) */
 127         ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
 128         ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
 129
 130         if (LOOPBACK_INTERNAL(efx)) {
 131                 cmd->base.speed = link_state->speed;
 132                 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
 133         }
 134
 135         return 0;
 136 }
 137
 138 /* This must be called with rtnl_lock held. */
 139 static int
 140 ef4_ethtool_set_link_ksettings(struct net_device *net_dev,
 141                                const struct ethtool_link_ksettings *cmd)
 142 {
 143         struct ef4_nic *efx = netdev_priv(net_dev);
 144         int rc;
 145
 146         /* GMAC does not support 1000Mbps HD */
 147         if ((cmd->base.speed == SPEED_1000) &&
 148             (cmd->base.duplex != DUPLEX_FULL)) {
 149                 netif_dbg(efx, drv, efx->net_dev,
 150                           "rejecting unsupported 1000Mbps HD setting\n");
 151                 return -EINVAL;
 152         }
 153
 154         mutex_lock(&efx->mac_lock);
 155         rc = efx->phy_op->set_link_ksettings(efx, cmd);
 156         mutex_unlock(&efx->mac_lock);
 157         return rc;
 158 }
 159
 160 static void ef4_ethtool_get_drvinfo(struct net_device *net_dev,
 161                                     struct ethtool_drvinfo *info)
 162 {
 163         struct ef4_nic *efx = netdev_priv(net_dev);
 164
 165         strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
 166         strscpy(info->version, EF4_DRIVER_VERSION, sizeof(info->version));
 167         strscpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
 168 }
 169
 170 static int ef4_ethtool_get_regs_len(struct net_device *net_dev)
 171 {
 172         return ef4_nic_get_regs_len(netdev_priv(net_dev));
 173 }
 174
 175 static void ef4_ethtool_get_regs(struct net_device *net_dev,
 176                                  struct ethtool_regs *regs, void *buf)
 177 {
 178         struct ef4_nic *efx = netdev_priv(net_dev);
 179
 180         regs->version = efx->type->revision;
 181         ef4_nic_get_regs(efx, buf);
 182 }
 183
 184 static u32 ef4_ethtool_get_msglevel(struct net_device *net_dev)
 185 {
 186         struct ef4_nic *efx = netdev_priv(net_dev);
 187         return efx->msg_enable;
 188 }
 189
 190 static void ef4_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
 191 {
 192         struct ef4_nic *efx = netdev_priv(net_dev);
 193         efx->msg_enable = msg_enable;
 194 }
 195
 196 /**
 197  * ef4_fill_test - fill in an individual self-test entry
 198  * @test_index:         Index of the test
 199  * @strings:            Ethtool strings, or %NULL
 200  * @data:               Ethtool test results, or %NULL
 201  * @test:               Pointer to test result (used only if data != %NULL)
 202  * @unit_format:        Unit name format (e.g. "chan\%d")
 203  * @unit_id:            Unit id (e.g. 0 for "chan0")
 204  * @test_format:        Test name format (e.g. "loopback.\%s.tx.sent")
 205  * @test_id:            Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
 206  *
 207  * Fill in an individual self-test entry.
 208  */
 209 static void ef4_fill_test(unsigned int test_index, u8 *strings, u64 *data,
 210                           int *test, const char *unit_format, int unit_id,
 211                           const char *test_format, const char *test_id)
 212 {
 213         char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
 214
 215         /* Fill data value, if applicable */
 216         if (data)
 217                 data[test_index] = *test;
 218
 219         /* Fill string, if applicable */
 220         if (strings) {
 221                 if (strchr(unit_format, '%'))
 222                         snprintf(unit_str, sizeof(unit_str),
 223                                  unit_format, unit_id);
 224                 else
 225                         strcpy(unit_str, unit_format);
 226                 snprintf(test_str, sizeof(test_str), test_format, test_id);
 227                 snprintf(strings + test_index * ETH_GSTRING_LEN,
 228                          ETH_GSTRING_LEN,
 229                          "%-6s %-24s", unit_str, test_str);
 230         }
 231 }
 232
 233 #define EF4_CHANNEL_NAME(_channel) "chan%d", _channel->channel
 234 #define EF4_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
 235 #define EF4_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
 236 #define EF4_LOOPBACK_NAME(_mode, _counter)                      \
 237         "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, ef4_loopback_mode)
 238
 239 /**
 240  * ef4_fill_loopback_test - fill in a block of loopback self-test entries
 241  * @efx:                Efx NIC
 242  * @lb_tests:           Efx loopback self-test results structure
 243  * @mode:               Loopback test mode
 244  * @test_index:         Starting index of the test
 245  * @strings:            Ethtool strings, or %NULL
 246  * @data:               Ethtool test results, or %NULL
 247  *
 248  * Fill in a block of loopback self-test entries.  Return new test
 249  * index.
 250  */
 251 static int ef4_fill_loopback_test(struct ef4_nic *efx,
 252                                   struct ef4_loopback_self_tests *lb_tests,
 253                                   enum ef4_loopback_mode mode,
 254                                   unsigned int test_index,
 255                                   u8 *strings, u64 *data)
 256 {
 257         struct ef4_channel *channel =
 258                 ef4_get_channel(efx, efx->tx_channel_offset);
 259         struct ef4_tx_queue *tx_queue;
 260
 261         ef4_for_each_channel_tx_queue(tx_queue, channel) {
 262                 ef4_fill_test(test_index++, strings, data,
 263                               &lb_tests->tx_sent[tx_queue->queue],
 264                               EF4_TX_QUEUE_NAME(tx_queue),
 265                               EF4_LOOPBACK_NAME(mode, "tx_sent"));
 266                 ef4_fill_test(test_index++, strings, data,
 267                               &lb_tests->tx_done[tx_queue->queue],
 268                               EF4_TX_QUEUE_NAME(tx_queue),
 269                               EF4_LOOPBACK_NAME(mode, "tx_done"));
 270         }
 271         ef4_fill_test(test_index++, strings, data,
 272                       &lb_tests->rx_good,
 273                       "rx", 0,
 274                       EF4_LOOPBACK_NAME(mode, "rx_good"));
 275         ef4_fill_test(test_index++, strings, data,
 276                       &lb_tests->rx_bad,
 277                       "rx", 0,
 278                       EF4_LOOPBACK_NAME(mode, "rx_bad"));
 279
 280         return test_index;
 281 }
 282
 283 /**
 284  * ef4_ethtool_fill_self_tests - get self-test details
 285  * @efx:                Efx NIC
 286  * @tests:              Efx self-test results structure, or %NULL
 287  * @strings:            Ethtool strings, or %NULL
 288  * @data:               Ethtool test results, or %NULL
 289  *
 290  * Get self-test number of strings, strings, and/or test results.
 291  * Return number of strings (== number of test results).
 292  *
 293  * The reason for merging these three functions is to make sure that
 294  * they can never be inconsistent.
 295  */
 296 static int ef4_ethtool_fill_self_tests(struct ef4_nic *efx,
 297                                        struct ef4_self_tests *tests,
 298                                        u8 *strings, u64 *data)
 299 {
 300         struct ef4_channel *channel;
 301         unsigned int n = 0, i;
 302         enum ef4_loopback_mode mode;
 303
 304         ef4_fill_test(n++, strings, data, &tests->phy_alive,
 305                       "phy", 0, "alive", NULL);
 306         ef4_fill_test(n++, strings, data, &tests->nvram,
 307                       "core", 0, "nvram", NULL);
 308         ef4_fill_test(n++, strings, data, &tests->interrupt,
 309                       "core", 0, "interrupt", NULL);
 310
 311         /* Event queues */
 312         ef4_for_each_channel(channel, efx) {
 313                 ef4_fill_test(n++, strings, data,
 314                               &tests->eventq_dma[channel->channel],
 315                               EF4_CHANNEL_NAME(channel),
 316                               "eventq.dma", NULL);
 317                 ef4_fill_test(n++, strings, data,
 318                               &tests->eventq_int[channel->channel],
 319                               EF4_CHANNEL_NAME(channel),
 320                               "eventq.int", NULL);
 321         }
 322
 323         ef4_fill_test(n++, strings, data, &tests->memory,
 324                       "core", 0, "memory", NULL);
 325         ef4_fill_test(n++, strings, data, &tests->registers,
 326                       "core", 0, "registers", NULL);
 327
 328         if (efx->phy_op->run_tests != NULL) {
 329                 EF4_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
 330
 331                 for (i = 0; true; ++i) {
 332                         const char *name;
 333
 334                         EF4_BUG_ON_PARANOID(i >= EF4_MAX_PHY_TESTS);
 335                         name = efx->phy_op->test_name(efx, i);
 336                         if (name == NULL)
 337                                 break;
 338
 339                         ef4_fill_test(n++, strings, data, &tests->phy_ext[i],
 340                                       "phy", 0, name, NULL);
 341                 }
 342         }
 343
 344         /* Loopback tests */
 345         for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
 346                 if (!(efx->loopback_modes & (1 << mode)))
 347                         continue;
 348                 n = ef4_fill_loopback_test(efx,
 349                                            &tests->loopback[mode], mode, n,
 350                                            strings, data);
 351         }
 352
 353         return n;
 354 }
 355
 356 static size_t ef4_describe_per_queue_stats(struct ef4_nic *efx, u8 *strings)
 357 {
 358         size_t n_stats = 0;
 359         struct ef4_channel *channel;
 360
 361         ef4_for_each_channel(channel, efx) {
 362                 if (ef4_channel_has_tx_queues(channel)) {
 363                         n_stats++;
 364                         if (strings != NULL) {
 365                                 snprintf(strings, ETH_GSTRING_LEN,
 366                                          "tx-%u.tx_packets",
 367                                          channel->tx_queue[0].queue /
 368                                          EF4_TXQ_TYPES);
 369
 370                                 strings += ETH_GSTRING_LEN;
 371                         }
 372                 }
 373         }
 374         ef4_for_each_channel(channel, efx) {
 375                 if (ef4_channel_has_rx_queue(channel)) {
 376                         n_stats++;
 377                         if (strings != NULL) {
 378                                 snprintf(strings, ETH_GSTRING_LEN,
 379                                          "rx-%d.rx_packets", channel->channel);
 380                                 strings += ETH_GSTRING_LEN;
 381                         }
 382                 }
 383         }
 384         return n_stats;
 385 }
 386
 387 static int ef4_ethtool_get_sset_count(struct net_device *net_dev,
 388                                       int string_set)
 389 {
 390         struct ef4_nic *efx = netdev_priv(net_dev);
 391
 392         switch (string_set) {
 393         case ETH_SS_STATS:
 394                 return efx->type->describe_stats(efx, NULL) +
 395                        EF4_ETHTOOL_SW_STAT_COUNT +
 396                        ef4_describe_per_queue_stats(efx, NULL);
 397         case ETH_SS_TEST:
 398                 return ef4_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
 399         default:
 400                 return -EINVAL;
 401         }
 402 }
 403
 404 static void ef4_ethtool_get_strings(struct net_device *net_dev,
 405                                     u32 string_set, u8 *strings)
 406 {
 407         struct ef4_nic *efx = netdev_priv(net_dev);
 408         int i;
 409
 410         switch (string_set) {
 411         case ETH_SS_STATS:
 412                 strings += (efx->type->describe_stats(efx, strings) *
 413                             ETH_GSTRING_LEN);
 414                 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++)
 415                         strscpy(strings + i * ETH_GSTRING_LEN,
 416                                 ef4_sw_stat_desc[i].name, ETH_GSTRING_LEN);
 417                 strings += EF4_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
 418                 strings += (ef4_describe_per_queue_stats(efx, strings) *
 419                             ETH_GSTRING_LEN);
 420                 break;
 421         case ETH_SS_TEST:
 422                 ef4_ethtool_fill_self_tests(efx, NULL, strings, NULL);
 423                 break;
 424         default:
 425                 /* No other string sets */
 426                 break;
 427         }
 428 }
 429
 430 static void ef4_ethtool_get_stats(struct net_device *net_dev,
 431                                   struct ethtool_stats *stats,
 432                                   u64 *data)
 433 {
 434         struct ef4_nic *efx = netdev_priv(net_dev);
 435         const struct ef4_sw_stat_desc *stat;
 436         struct ef4_channel *channel;
 437         struct ef4_tx_queue *tx_queue;
 438         struct ef4_rx_queue *rx_queue;
 439         int i;
 440
 441         spin_lock_bh(&efx->stats_lock);
 442
 443         /* Get NIC statistics */
 444         data += efx->type->update_stats(efx, data, NULL);
 445
 446         /* Get software statistics */
 447         for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++) {
 448                 stat = &ef4_sw_stat_desc[i];
 449                 switch (stat->source) {
 450                 case EF4_ETHTOOL_STAT_SOURCE_nic:
 451                         data[i] = stat->get_stat((void *)efx + stat->offset);
 452                         break;
 453                 case EF4_ETHTOOL_STAT_SOURCE_channel:
 454                         data[i] = 0;
 455                         ef4_for_each_channel(channel, efx)
 456                                 data[i] += stat->get_stat((void *)channel +
 457                                                           stat->offset);
 458                         break;
 459                 case EF4_ETHTOOL_STAT_SOURCE_tx_queue:
 460                         data[i] = 0;
 461                         ef4_for_each_channel(channel, efx) {
 462                                 ef4_for_each_channel_tx_queue(tx_queue, channel)
 463                                         data[i] +=
 464                                                 stat->get_stat((void *)tx_queue
 465                                                                + stat->offset);
 466                         }
 467                         break;
 468                 }
 469         }
 470         data += EF4_ETHTOOL_SW_STAT_COUNT;
 471
 472         spin_unlock_bh(&efx->stats_lock);
 473
 474         ef4_for_each_channel(channel, efx) {
 475                 if (ef4_channel_has_tx_queues(channel)) {
 476                         *data = 0;
 477                         ef4_for_each_channel_tx_queue(tx_queue, channel) {
 478                                 *data += tx_queue->tx_packets;
 479                         }
 480                         data++;
 481                 }
 482         }
 483         ef4_for_each_channel(channel, efx) {
 484                 if (ef4_channel_has_rx_queue(channel)) {
 485                         *data = 0;
 486                         ef4_for_each_channel_rx_queue(rx_queue, channel) {
 487                                 *data += rx_queue->rx_packets;
 488                         }
 489                         data++;
 490                 }
 491         }
 492 }
 493
 494 static void ef4_ethtool_self_test(struct net_device *net_dev,
 495                                   struct ethtool_test *test, u64 *data)
 496 {
 497         struct ef4_nic *efx = netdev_priv(net_dev);
 498         struct ef4_self_tests *ef4_tests;
 499         bool already_up;
 500         int rc = -ENOMEM;
 501
 502         ef4_tests = kzalloc(sizeof(*ef4_tests), GFP_KERNEL);
 503         if (!ef4_tests)
 504                 goto fail;
 505
 506         if (efx->state != STATE_READY) {
 507                 rc = -EBUSY;
 508                 goto out;
 509         }
 510
 511         netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
 512                    (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
 513
 514         /* We need rx buffers and interrupts. */
 515         already_up = (efx->net_dev->flags & IFF_UP);
 516         if (!already_up) {
 517                 rc = dev_open(efx->net_dev, NULL);
 518                 if (rc) {
 519                         netif_err(efx, drv, efx->net_dev,
 520                                   "failed opening device.\n");
 521                         goto out;
 522                 }
 523         }
 524
 525         rc = ef4_selftest(efx, ef4_tests, test->flags);
 526
 527         if (!already_up)
 528                 dev_close(efx->net_dev);
 529
 530         netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
 531                    rc == 0 ? "passed" : "failed",
 532                    (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
 533
 534 out:
 535         ef4_ethtool_fill_self_tests(efx, ef4_tests, NULL, data);
 536         kfree(ef4_tests);
 537 fail:
 538         if (rc)
 539                 test->flags |= ETH_TEST_FL_FAILED;
 540 }
 541
 542 /* Restart autonegotiation */
 543 static int ef4_ethtool_nway_reset(struct net_device *net_dev)
 544 {
 545         struct ef4_nic *efx = netdev_priv(net_dev);
 546
 547         return mdio45_nway_restart(&efx->mdio);
 548 }
 549
 550 /*
 551  * Each channel has a single IRQ and moderation timer, started by any
 552  * completion (or other event).  Unless the module parameter
 553  * separate_tx_channels is set, IRQs and moderation are therefore
 554  * shared between RX and TX completions.  In this case, when RX IRQ
 555  * moderation is explicitly changed then TX IRQ moderation is
 556  * automatically changed too, but otherwise we fail if the two values
 557  * are requested to be different.
 558  *
 559  * The hardware does not support a limit on the number of completions
 560  * before an IRQ, so we do not use the max_frames fields.  We should
 561  * report and require that max_frames == (usecs != 0), but this would
 562  * invalidate existing user documentation.
 563  *
 564  * The hardware does not have distinct settings for interrupt
 565  * moderation while the previous IRQ is being handled, so we should
 566  * not use the 'irq' fields.  However, an earlier developer
 567  * misunderstood the meaning of the 'irq' fields and the driver did
 568  * not support the standard fields.  To avoid invalidating existing
 569  * user documentation, we report and accept changes through either the
 570  * standard or 'irq' fields.  If both are changed at the same time, we
 571  * prefer the standard field.
 572  *
 573  * We implement adaptive IRQ moderation, but use a different algorithm
 574  * from that assumed in the definition of struct ethtool_coalesce.
 575  * Therefore we do not use any of the adaptive moderation parameters
 576  * in it.
 577  */
 578
 579 static int ef4_ethtool_get_coalesce(struct net_device *net_dev,
 580                                     struct ethtool_coalesce *coalesce,
 581                                     struct kernel_ethtool_coalesce *kernel_coal,
 582                                     struct netlink_ext_ack *extack)
 583 {
 584         struct ef4_nic *efx = netdev_priv(net_dev);
 585         unsigned int tx_usecs, rx_usecs;
 586         bool rx_adaptive;
 587
 588         ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
 589
 590         coalesce->tx_coalesce_usecs = tx_usecs;
 591         coalesce->tx_coalesce_usecs_irq = tx_usecs;
 592         coalesce->rx_coalesce_usecs = rx_usecs;
 593         coalesce->rx_coalesce_usecs_irq = rx_usecs;
 594         coalesce->use_adaptive_rx_coalesce = rx_adaptive;
 595
 596         return 0;
 597 }
 598
 599 static int ef4_ethtool_set_coalesce(struct net_device *net_dev,
 600                                     struct ethtool_coalesce *coalesce,
 601                                     struct kernel_ethtool_coalesce *kernel_coal,
 602                                     struct netlink_ext_ack *extack)
 603 {
 604         struct ef4_nic *efx = netdev_priv(net_dev);
 605         struct ef4_channel *channel;
 606         unsigned int tx_usecs, rx_usecs;
 607         bool adaptive, rx_may_override_tx;
 608         int rc;
 609
 610         ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
 611
 612         if (coalesce->rx_coalesce_usecs != rx_usecs)
 613                 rx_usecs = coalesce->rx_coalesce_usecs;
 614         else
 615                 rx_usecs = coalesce->rx_coalesce_usecs_irq;
 616
 617         adaptive = coalesce->use_adaptive_rx_coalesce;
 618
 619         /* If channels are shared, TX IRQ moderation can be quietly
 620          * overridden unless it is changed from its old value.
 621          */
 622         rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
 623                               coalesce->tx_coalesce_usecs_irq == tx_usecs);
 624         if (coalesce->tx_coalesce_usecs != tx_usecs)
 625                 tx_usecs = coalesce->tx_coalesce_usecs;
 626         else
 627                 tx_usecs = coalesce->tx_coalesce_usecs_irq;
 628
 629         rc = ef4_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
 630                                      rx_may_override_tx);
 631         if (rc != 0)
 632                 return rc;
 633
 634         ef4_for_each_channel(channel, efx)
 635                 efx->type->push_irq_moderation(channel);
 636
 637         return 0;
 638 }
 639
 640 static void
 641 ef4_ethtool_get_ringparam(struct net_device *net_dev,
 642                           struct ethtool_ringparam *ring,
 643                           struct kernel_ethtool_ringparam *kernel_ring,
 644                           struct netlink_ext_ack *extack)
 645 {
 646         struct ef4_nic *efx = netdev_priv(net_dev);
 647
 648         ring->rx_max_pending = EF4_MAX_DMAQ_SIZE;
 649         ring->tx_max_pending = EF4_MAX_DMAQ_SIZE;
 650         ring->rx_pending = efx->rxq_entries;
 651         ring->tx_pending = efx->txq_entries;
 652 }
 653
 654 static int
 655 ef4_ethtool_set_ringparam(struct net_device *net_dev,
 656                           struct ethtool_ringparam *ring,
 657                           struct kernel_ethtool_ringparam *kernel_ring,
 658                           struct netlink_ext_ack *extack)
 659 {
 660         struct ef4_nic *efx = netdev_priv(net_dev);
 661         u32 txq_entries;
 662
 663         if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
 664             ring->rx_pending > EF4_MAX_DMAQ_SIZE ||
 665             ring->tx_pending > EF4_MAX_DMAQ_SIZE)
 666                 return -EINVAL;
 667
 668         if (ring->rx_pending < EF4_RXQ_MIN_ENT) {
 669                 netif_err(efx, drv, efx->net_dev,
 670                           "RX queues cannot be smaller than %u\n",
 671                           EF4_RXQ_MIN_ENT);
 672                 return -EINVAL;
 673         }
 674
 675         txq_entries = max(ring->tx_pending, EF4_TXQ_MIN_ENT(efx));
 676         if (txq_entries != ring->tx_pending)
 677                 netif_warn(efx, drv, efx->net_dev,
 678                            "increasing TX queue size to minimum of %u\n",
 679                            txq_entries);
 680
 681         return ef4_realloc_channels(efx, ring->rx_pending, txq_entries);
 682 }
 683
 684 static int ef4_ethtool_set_pauseparam(struct net_device *net_dev,
 685                                       struct ethtool_pauseparam *pause)
 686 {
 687         struct ef4_nic *efx = netdev_priv(net_dev);
 688         u8 wanted_fc, old_fc;
 689         u32 old_adv;
 690         int rc = 0;
 691
 692         mutex_lock(&efx->mac_lock);
 693
 694         wanted_fc = ((pause->rx_pause ? EF4_FC_RX : 0) |
 695                      (pause->tx_pause ? EF4_FC_TX : 0) |
 696                      (pause->autoneg ? EF4_FC_AUTO : 0));
 697
 698         if ((wanted_fc & EF4_FC_TX) && !(wanted_fc & EF4_FC_RX)) {
 699                 netif_dbg(efx, drv, efx->net_dev,
 700                           "Flow control unsupported: tx ON rx OFF\n");
 701                 rc = -EINVAL;
 702                 goto out;
 703         }
 704
 705         if ((wanted_fc & EF4_FC_AUTO) && !efx->link_advertising) {
 706                 netif_dbg(efx, drv, efx->net_dev,
 707                           "Autonegotiation is disabled\n");
 708                 rc = -EINVAL;
 709                 goto out;
 710         }
 711
 712         /* Hook for Falcon bug 11482 workaround */
 713         if (efx->type->prepare_enable_fc_tx &&
 714             (wanted_fc & EF4_FC_TX) && !(efx->wanted_fc & EF4_FC_TX))
 715                 efx->type->prepare_enable_fc_tx(efx);
 716
 717         old_adv = efx->link_advertising;
 718         old_fc = efx->wanted_fc;
 719         ef4_link_set_wanted_fc(efx, wanted_fc);
 720         if (efx->link_advertising != old_adv ||
 721             (efx->wanted_fc ^ old_fc) & EF4_FC_AUTO) {
 722                 rc = efx->phy_op->reconfigure(efx);
 723                 if (rc) {
 724                         netif_err(efx, drv, efx->net_dev,
 725                                   "Unable to advertise requested flow "
 726                                   "control setting\n");
 727                         goto out;
 728                 }
 729         }
 730
 731         /* Reconfigure the MAC. The PHY *may* generate a link state change event
 732          * if the user just changed the advertised capabilities, but there's no
 733          * harm doing this twice */
 734         ef4_mac_reconfigure(efx);
 735
 736 out:
 737         mutex_unlock(&efx->mac_lock);
 738
 739         return rc;
 740 }
 741
 742 static void ef4_ethtool_get_pauseparam(struct net_device *net_dev,
 743                                        struct ethtool_pauseparam *pause)
 744 {
 745         struct ef4_nic *efx = netdev_priv(net_dev);
 746
 747         pause->rx_pause = !!(efx->wanted_fc & EF4_FC_RX);
 748         pause->tx_pause = !!(efx->wanted_fc & EF4_FC_TX);
 749         pause->autoneg = !!(efx->wanted_fc & EF4_FC_AUTO);
 750 }
 751
 752 static void ef4_ethtool_get_wol(struct net_device *net_dev,
 753                                 struct ethtool_wolinfo *wol)
 754 {
 755         struct ef4_nic *efx = netdev_priv(net_dev);
 756         return efx->type->get_wol(efx, wol);
 757 }
 758
 759
 760 static int ef4_ethtool_set_wol(struct net_device *net_dev,
 761                                struct ethtool_wolinfo *wol)
 762 {
 763         struct ef4_nic *efx = netdev_priv(net_dev);
 764         return efx->type->set_wol(efx, wol->wolopts);
 765 }
 766
 767 static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags)
 768 {
 769         struct ef4_nic *efx = netdev_priv(net_dev);
 770         int rc;
 771
 772         rc = efx->type->map_reset_flags(flags);
 773         if (rc < 0)
 774                 return rc;
 775
 776         return ef4_reset(efx, rc);
 777 }
 778
 779 /* MAC address mask including only I/G bit */
 780 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
 781
 782 #define IP4_ADDR_FULL_MASK      ((__force __be32)~0)
 783 #define IP_PROTO_FULL_MASK      0xFF
 784 #define PORT_FULL_MASK          ((__force __be16)~0)
 785 #define ETHER_TYPE_FULL_MASK    ((__force __be16)~0)
 786
 787 static inline void ip6_fill_mask(__be32 *mask)
 788 {
 789         mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
 790 }
 791
 792 static int ef4_ethtool_get_class_rule(struct ef4_nic *efx,
 793                                       struct ethtool_rx_flow_spec *rule)
 794 {
 795         struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
 796         struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
 797         struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
 798         struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
 799         struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
 800         struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
 801         struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
 802         struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
 803         struct ethhdr *mac_entry = &rule->h_u.ether_spec;
 804         struct ethhdr *mac_mask = &rule->m_u.ether_spec;
 805         struct ef4_filter_spec spec;
 806         int rc;
 807
 808         rc = ef4_filter_get_filter_safe(efx, EF4_FILTER_PRI_MANUAL,
 809                                         rule->location, &spec);
 810         if (rc)
 811                 return rc;
 812
 813         if (spec.dmaq_id == EF4_FILTER_RX_DMAQ_ID_DROP)
 814                 rule->ring_cookie = RX_CLS_FLOW_DISC;
 815         else
 816                 rule->ring_cookie = spec.dmaq_id;
 817
 818         if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
 819             spec.ether_type == htons(ETH_P_IP) &&
 820             (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
 821             (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
 822             !(spec.match_flags &
 823               ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
 824                 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
 825                 EF4_FILTER_MATCH_IP_PROTO |
 826                 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
 827                 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
 828                                    TCP_V4_FLOW : UDP_V4_FLOW);
 829                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
 830                         ip_entry->ip4dst = spec.loc_host[0];
 831                         ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
 832                 }
 833                 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
 834                         ip_entry->ip4src = spec.rem_host[0];
 835                         ip_mask->ip4src = IP4_ADDR_FULL_MASK;
 836                 }
 837                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
 838                         ip_entry->pdst = spec.loc_port;
 839                         ip_mask->pdst = PORT_FULL_MASK;
 840                 }
 841                 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
 842                         ip_entry->psrc = spec.rem_port;
 843                         ip_mask->psrc = PORT_FULL_MASK;
 844                 }
 845         } else if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
 846             spec.ether_type == htons(ETH_P_IPV6) &&
 847             (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
 848             (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
 849             !(spec.match_flags &
 850               ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
 851                 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
 852                 EF4_FILTER_MATCH_IP_PROTO |
 853                 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
 854                 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
 855                                    TCP_V6_FLOW : UDP_V6_FLOW);
 856                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
 857                         memcpy(ip6_entry->ip6dst, spec.loc_host,
 858                                sizeof(ip6_entry->ip6dst));
 859                         ip6_fill_mask(ip6_mask->ip6dst);
 860                 }
 861                 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
 862                         memcpy(ip6_entry->ip6src, spec.rem_host,
 863                                sizeof(ip6_entry->ip6src));
 864                         ip6_fill_mask(ip6_mask->ip6src);
 865                 }
 866                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
 867                         ip6_entry->pdst = spec.loc_port;
 868                         ip6_mask->pdst = PORT_FULL_MASK;
 869                 }
 870                 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
 871                         ip6_entry->psrc = spec.rem_port;
 872                         ip6_mask->psrc = PORT_FULL_MASK;
 873                 }
 874         } else if (!(spec.match_flags &
 875                      ~(EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG |
 876                        EF4_FILTER_MATCH_REM_MAC | EF4_FILTER_MATCH_ETHER_TYPE |
 877                        EF4_FILTER_MATCH_OUTER_VID))) {
 878                 rule->flow_type = ETHER_FLOW;
 879                 if (spec.match_flags &
 880                     (EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG)) {
 881                         ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
 882                         if (spec.match_flags & EF4_FILTER_MATCH_LOC_MAC)
 883                                 eth_broadcast_addr(mac_mask->h_dest);
 884                         else
 885                                 ether_addr_copy(mac_mask->h_dest,
 886                                                 mac_addr_ig_mask);
 887                 }
 888                 if (spec.match_flags & EF4_FILTER_MATCH_REM_MAC) {
 889                         ether_addr_copy(mac_entry->h_source, spec.rem_mac);
 890                         eth_broadcast_addr(mac_mask->h_source);
 891                 }
 892                 if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) {
 893                         mac_entry->h_proto = spec.ether_type;
 894                         mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
 895                 }
 896         } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
 897                    spec.ether_type == htons(ETH_P_IP) &&
 898                    !(spec.match_flags &
 899                      ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
 900                        EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
 901                        EF4_FILTER_MATCH_IP_PROTO))) {
 902                 rule->flow_type = IPV4_USER_FLOW;
 903                 uip_entry->ip_ver = ETH_RX_NFC_IP4;
 904                 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
 905                         uip_mask->proto = IP_PROTO_FULL_MASK;
 906                         uip_entry->proto = spec.ip_proto;
 907                 }
 908                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
 909                         uip_entry->ip4dst = spec.loc_host[0];
 910                         uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
 911                 }
 912                 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
 913                         uip_entry->ip4src = spec.rem_host[0];
 914                         uip_mask->ip4src = IP4_ADDR_FULL_MASK;
 915                 }
 916         } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
 917                    spec.ether_type == htons(ETH_P_IPV6) &&
 918                    !(spec.match_flags &
 919                      ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
 920                        EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
 921                        EF4_FILTER_MATCH_IP_PROTO))) {
 922                 rule->flow_type = IPV6_USER_FLOW;
 923                 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
 924                         uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
 925                         uip6_entry->l4_proto = spec.ip_proto;
 926                 }
 927                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
 928                         memcpy(uip6_entry->ip6dst, spec.loc_host,
 929                                sizeof(uip6_entry->ip6dst));
 930                         ip6_fill_mask(uip6_mask->ip6dst);
 931                 }
 932                 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
 933                         memcpy(uip6_entry->ip6src, spec.rem_host,
 934                                sizeof(uip6_entry->ip6src));
 935                         ip6_fill_mask(uip6_mask->ip6src);
 936                 }
 937         } else {
 938                 /* The above should handle all filters that we insert */
 939                 WARN_ON(1);
 940                 return -EINVAL;
 941         }
 942
 943         if (spec.match_flags & EF4_FILTER_MATCH_OUTER_VID) {
 944                 rule->flow_type |= FLOW_EXT;
 945                 rule->h_ext.vlan_tci = spec.outer_vid;
 946                 rule->m_ext.vlan_tci = htons(0xfff);
 947         }
 948
 949         return rc;
 950 }
 951
 952 static int
 953 ef4_ethtool_get_rxnfc(struct net_device *net_dev,
 954                       struct ethtool_rxnfc *info, u32 *rule_locs)
 955 {
 956         struct ef4_nic *efx = netdev_priv(net_dev);
 957
 958         switch (info->cmd) {
 959         case ETHTOOL_GRXRINGS:
 960                 info->data = efx->n_rx_channels;
 961                 return 0;
 962
 963         case ETHTOOL_GRXFH: {
 964                 unsigned min_revision = 0;
 965
 966                 info->data = 0;
 967                 switch (info->flow_type) {
 968                 case TCP_V4_FLOW:
 969                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 970                         fallthrough;
 971                 case UDP_V4_FLOW:
 972                 case SCTP_V4_FLOW:
 973                 case AH_ESP_V4_FLOW:
 974                 case IPV4_FLOW:
 975                         info->data |= RXH_IP_SRC | RXH_IP_DST;
 976                         min_revision = EF4_REV_FALCON_B0;
 977                         break;
 978                 default:
 979                         break;
 980                 }
 981                 if (ef4_nic_rev(efx) < min_revision)
 982                         info->data = 0;
 983                 return 0;
 984         }
 985
 986         case ETHTOOL_GRXCLSRLCNT:
 987                 info->data = ef4_filter_get_rx_id_limit(efx);
 988                 if (info->data == 0)
 989                         return -EOPNOTSUPP;
 990                 info->data |= RX_CLS_LOC_SPECIAL;
 991                 info->rule_cnt =
 992                         ef4_filter_count_rx_used(efx, EF4_FILTER_PRI_MANUAL);
 993                 return 0;
 994
 995         case ETHTOOL_GRXCLSRULE:
 996                 if (ef4_filter_get_rx_id_limit(efx) == 0)
 997                         return -EOPNOTSUPP;
 998                 return ef4_ethtool_get_class_rule(efx, &info->fs);
 999
1000         case ETHTOOL_GRXCLSRLALL: {
1001                 s32 rc;
1002                 info->data = ef4_filter_get_rx_id_limit(efx);
1003                 if (info->data == 0)
1004                         return -EOPNOTSUPP;
1005                 rc = ef4_filter_get_rx_ids(efx, EF4_FILTER_PRI_MANUAL,
1006                                            rule_locs, info->rule_cnt);
1007                 if (rc < 0)
1008                         return rc;
1009                 info->rule_cnt = rc;
1010                 return 0;
1011         }
1012
1013         default:
1014                 return -EOPNOTSUPP;
1015         }
1016 }
1017
1018 static inline bool ip6_mask_is_full(__be32 mask[4])
1019 {
1020         return !~(mask[0] & mask[1] & mask[2] & mask[3]);
1021 }
1022
1023 static inline bool ip6_mask_is_empty(__be32 mask[4])
1024 {
1025         return !(mask[0] | mask[1] | mask[2] | mask[3]);
1026 }
1027
1028 static int ef4_ethtool_set_class_rule(struct ef4_nic *efx,
1029                                       struct ethtool_rx_flow_spec *rule)
1030 {
1031         struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
1032         struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
1033         struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
1034         struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
1035         struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
1036         struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
1037         struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
1038         struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
1039         struct ethhdr *mac_entry = &rule->h_u.ether_spec;
1040         struct ethhdr *mac_mask = &rule->m_u.ether_spec;
1041         struct ef4_filter_spec spec;
1042         int rc;
1043
1044         /* Check that user wants us to choose the location */
1045         if (rule->location != RX_CLS_LOC_ANY)
1046                 return -EINVAL;
1047
1048         /* Range-check ring_cookie */
1049         if (rule->ring_cookie >= efx->n_rx_channels &&
1050             rule->ring_cookie != RX_CLS_FLOW_DISC)
1051                 return -EINVAL;
1052
1053         /* Check for unsupported extensions */
1054         if ((rule->flow_type & FLOW_EXT) &&
1055             (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
1056              rule->m_ext.data[1]))
1057                 return -EINVAL;
1058
1059         ef4_filter_init_rx(&spec, EF4_FILTER_PRI_MANUAL,
1060                            efx->rx_scatter ? EF4_FILTER_FLAG_RX_SCATTER : 0,
1061                            (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
1062                            EF4_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
1063
1064         switch (rule->flow_type & ~FLOW_EXT) {
1065         case TCP_V4_FLOW:
1066         case UDP_V4_FLOW:
1067                 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1068                                     EF4_FILTER_MATCH_IP_PROTO);
1069                 spec.ether_type = htons(ETH_P_IP);
1070                 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
1071                                  IPPROTO_TCP : IPPROTO_UDP);
1072                 if (ip_mask->ip4dst) {
1073                         if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1074                                 return -EINVAL;
1075                         spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1076                         spec.loc_host[0] = ip_entry->ip4dst;
1077                 }
1078                 if (ip_mask->ip4src) {
1079                         if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
1080                                 return -EINVAL;
1081                         spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1082                         spec.rem_host[0] = ip_entry->ip4src;
1083                 }
1084                 if (ip_mask->pdst) {
1085                         if (ip_mask->pdst != PORT_FULL_MASK)
1086                                 return -EINVAL;
1087                         spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1088                         spec.loc_port = ip_entry->pdst;
1089                 }
1090                 if (ip_mask->psrc) {
1091                         if (ip_mask->psrc != PORT_FULL_MASK)
1092                                 return -EINVAL;
1093                         spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1094                         spec.rem_port = ip_entry->psrc;
1095                 }
1096                 if (ip_mask->tos)
1097                         return -EINVAL;
1098                 break;
1099
1100         case TCP_V6_FLOW:
1101         case UDP_V6_FLOW:
1102                 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1103                                     EF4_FILTER_MATCH_IP_PROTO);
1104                 spec.ether_type = htons(ETH_P_IPV6);
1105                 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ?
1106                                  IPPROTO_TCP : IPPROTO_UDP);
1107                 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1108                         if (!ip6_mask_is_full(ip6_mask->ip6dst))
1109                                 return -EINVAL;
1110                         spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1111                         memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1112                 }
1113                 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1114                         if (!ip6_mask_is_full(ip6_mask->ip6src))
1115                                 return -EINVAL;
1116                         spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1117                         memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1118                 }
1119                 if (ip6_mask->pdst) {
1120                         if (ip6_mask->pdst != PORT_FULL_MASK)
1121                                 return -EINVAL;
1122                         spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1123                         spec.loc_port = ip6_entry->pdst;
1124                 }
1125                 if (ip6_mask->psrc) {
1126                         if (ip6_mask->psrc != PORT_FULL_MASK)
1127                                 return -EINVAL;
1128                         spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1129                         spec.rem_port = ip6_entry->psrc;
1130                 }
1131                 if (ip6_mask->tclass)
1132                         return -EINVAL;
1133                 break;
1134
1135         case IPV4_USER_FLOW:
1136                 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1137                     uip_entry->ip_ver != ETH_RX_NFC_IP4)
1138                         return -EINVAL;
1139                 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1140                 spec.ether_type = htons(ETH_P_IP);
1141                 if (uip_mask->ip4dst) {
1142                         if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1143                                 return -EINVAL;
1144                         spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1145                         spec.loc_host[0] = uip_entry->ip4dst;
1146                 }
1147                 if (uip_mask->ip4src) {
1148                         if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1149                                 return -EINVAL;
1150                         spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1151                         spec.rem_host[0] = uip_entry->ip4src;
1152                 }
1153                 if (uip_mask->proto) {
1154                         if (uip_mask->proto != IP_PROTO_FULL_MASK)
1155                                 return -EINVAL;
1156                         spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1157                         spec.ip_proto = uip_entry->proto;
1158                 }
1159                 break;
1160
1161         case IPV6_USER_FLOW:
1162                 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1163                         return -EINVAL;
1164                 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1165                 spec.ether_type = htons(ETH_P_IPV6);
1166                 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1167                         if (!ip6_mask_is_full(uip6_mask->ip6dst))
1168                                 return -EINVAL;
1169                         spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1170                         memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1171                 }
1172                 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1173                         if (!ip6_mask_is_full(uip6_mask->ip6src))
1174                                 return -EINVAL;
1175                         spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1176                         memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1177                 }
1178                 if (uip6_mask->l4_proto) {
1179                         if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1180                                 return -EINVAL;
1181                         spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1182                         spec.ip_proto = uip6_entry->l4_proto;
1183                 }
1184                 break;
1185
1186         case ETHER_FLOW:
1187                 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1188                         if (ether_addr_equal(mac_mask->h_dest,
1189                                              mac_addr_ig_mask))
1190                                 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC_IG;
1191                         else if (is_broadcast_ether_addr(mac_mask->h_dest))
1192                                 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC;
1193                         else
1194                                 return -EINVAL;
1195                         ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1196                 }
1197                 if (!is_zero_ether_addr(mac_mask->h_source)) {
1198                         if (!is_broadcast_ether_addr(mac_mask->h_source))
1199                                 return -EINVAL;
1200                         spec.match_flags |= EF4_FILTER_MATCH_REM_MAC;
1201                         ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1202                 }
1203                 if (mac_mask->h_proto) {
1204                         if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1205                                 return -EINVAL;
1206                         spec.match_flags |= EF4_FILTER_MATCH_ETHER_TYPE;
1207                         spec.ether_type = mac_entry->h_proto;
1208                 }
1209                 break;
1210
1211         default:
1212                 return -EINVAL;
1213         }
1214
1215         if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1216                 if (rule->m_ext.vlan_tci != htons(0xfff))
1217                         return -EINVAL;
1218                 spec.match_flags |= EF4_FILTER_MATCH_OUTER_VID;
1219                 spec.outer_vid = rule->h_ext.vlan_tci;
1220         }
1221
1222         rc = ef4_filter_insert_filter(efx, &spec, true);
1223         if (rc < 0)
1224                 return rc;
1225
1226         rule->location = rc;
1227         return 0;
1228 }
1229
1230 static int ef4_ethtool_set_rxnfc(struct net_device *net_dev,
1231                                  struct ethtool_rxnfc *info)
1232 {
1233         struct ef4_nic *efx = netdev_priv(net_dev);
1234
1235         if (ef4_filter_get_rx_id_limit(efx) == 0)
1236                 return -EOPNOTSUPP;
1237
1238         switch (info->cmd) {
1239         case ETHTOOL_SRXCLSRLINS:
1240                 return ef4_ethtool_set_class_rule(efx, &info->fs);
1241
1242         case ETHTOOL_SRXCLSRLDEL:
1243                 return ef4_filter_remove_id_safe(efx, EF4_FILTER_PRI_MANUAL,
1244                                                  info->fs.location);
1245
1246         default:
1247                 return -EOPNOTSUPP;
1248         }
1249 }
1250
1251 static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1252 {
1253         struct ef4_nic *efx = netdev_priv(net_dev);
1254
1255         return ((ef4_nic_rev(efx) < EF4_REV_FALCON_B0 ||
1256                  efx->n_rx_channels == 1) ?
1257                 0 : ARRAY_SIZE(efx->rx_indir_table));
1258 }
1259
1260 static int ef4_ethtool_get_rxfh(struct net_device *net_dev,
1261                                 struct ethtool_rxfh_param *rxfh)
1262 {
1263         struct ef4_nic *efx = netdev_priv(net_dev);
1264
1265         rxfh->hfunc = ETH_RSS_HASH_TOP;
1266         if (rxfh->indir)
1267                 memcpy(rxfh->indir, efx->rx_indir_table,
1268                        sizeof(efx->rx_indir_table));
1269         return 0;
1270 }
1271
1272 static int ef4_ethtool_set_rxfh(struct net_device *net_dev,
1273                                 struct ethtool_rxfh_param *rxfh,
1274                                 struct netlink_ext_ack *extack)
1275 {
1276         struct ef4_nic *efx = netdev_priv(net_dev);
1277
1278         /* We do not allow change in unsupported parameters */
1279         if (rxfh->key ||
1280             (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1281              rxfh->hfunc != ETH_RSS_HASH_TOP))
1282                 return -EOPNOTSUPP;
1283         if (!rxfh->indir)
1284                 return 0;
1285
1286         return efx->type->rx_push_rss_config(efx, true, rxfh->indir);
1287 }
1288
1289 static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev,
1290                                          struct ethtool_eeprom *ee,
1291                                          u8 *data)
1292 {
1293         struct ef4_nic *efx = netdev_priv(net_dev);
1294         int ret;
1295
1296         if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
1297                 return -EOPNOTSUPP;
1298
1299         mutex_lock(&efx->mac_lock);
1300         ret = efx->phy_op->get_module_eeprom(efx, ee, data);
1301         mutex_unlock(&efx->mac_lock);
1302
1303         return ret;
1304 }
1305
1306 static int ef4_ethtool_get_module_info(struct net_device *net_dev,
1307                                        struct ethtool_modinfo *modinfo)
1308 {
1309         struct ef4_nic *efx = netdev_priv(net_dev);
1310         int ret;
1311
1312         if (!efx->phy_op || !efx->phy_op->get_module_info)
1313                 return -EOPNOTSUPP;
1314
1315         mutex_lock(&efx->mac_lock);
1316         ret = efx->phy_op->get_module_info(efx, modinfo);
1317         mutex_unlock(&efx->mac_lock);
1318
1319         return ret;
1320 }
1321
1322 const struct ethtool_ops ef4_ethtool_ops = {
1323         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1324                                      ETHTOOL_COALESCE_USECS_IRQ |
1325                                      ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
1326         .get_drvinfo            = ef4_ethtool_get_drvinfo,
1327         .get_regs_len           = ef4_ethtool_get_regs_len,
1328         .get_regs               = ef4_ethtool_get_regs,
1329         .get_msglevel           = ef4_ethtool_get_msglevel,
1330         .set_msglevel           = ef4_ethtool_set_msglevel,
1331         .nway_reset             = ef4_ethtool_nway_reset,
1332         .get_link               = ethtool_op_get_link,
1333         .get_coalesce           = ef4_ethtool_get_coalesce,
1334         .set_coalesce           = ef4_ethtool_set_coalesce,
1335         .get_ringparam          = ef4_ethtool_get_ringparam,
1336         .set_ringparam          = ef4_ethtool_set_ringparam,
1337         .get_pauseparam         = ef4_ethtool_get_pauseparam,
1338         .set_pauseparam         = ef4_ethtool_set_pauseparam,
1339         .get_sset_count         = ef4_ethtool_get_sset_count,
1340         .self_test              = ef4_ethtool_self_test,
1341         .get_strings            = ef4_ethtool_get_strings,
1342         .set_phys_id            = ef4_ethtool_phys_id,
1343         .get_ethtool_stats      = ef4_ethtool_get_stats,
1344         .get_wol                = ef4_ethtool_get_wol,
1345         .set_wol                = ef4_ethtool_set_wol,
1346         .reset                  = ef4_ethtool_reset,
1347         .get_rxnfc              = ef4_ethtool_get_rxnfc,
1348         .set_rxnfc              = ef4_ethtool_set_rxnfc,
1349         .get_rxfh_indir_size    = ef4_ethtool_get_rxfh_indir_size,
1350         .get_rxfh               = ef4_ethtool_get_rxfh,
1351         .set_rxfh               = ef4_ethtool_set_rxfh,
1352         .get_module_info        = ef4_ethtool_get_module_info,
1353         .get_module_eeprom      = ef4_ethtool_get_module_eeprom,
1354         .get_link_ksettings     = ef4_ethtool_get_link_ksettings,
1355         .set_link_ksettings     = ef4_ethtool_set_link_ksettings,
1356 };