drivers/net/ethernet/sfc/ethtool.c

   1 /****************************************************************************
   2  * Driver for Solarflare network controllers and boards
   3  * Copyright 2005-2006 Fen Systems Ltd.
   4  * Copyright 2006-2013 Solarflare Communications Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published
   8  * by the Free Software Foundation, incorporated herein by reference.
   9  */
  10
  11 #include <linux/netdevice.h>
  12 #include <linux/ethtool.h>
  13 #include <linux/rtnetlink.h>
  14 #include <linux/in.h>
  15 #include "net_driver.h"
  16 #include "workarounds.h"
  17 #include "selftest.h"
  18 #include "efx.h"
  19 #include "filter.h"
  20 #include "nic.h"
  21
  22 struct efx_sw_stat_desc {
  23         const char *name;
  24         enum {
  25                 EFX_ETHTOOL_STAT_SOURCE_nic,
  26                 EFX_ETHTOOL_STAT_SOURCE_channel,
  27                 EFX_ETHTOOL_STAT_SOURCE_tx_queue
  28         } source;
  29         unsigned offset;
  30         u64(*get_stat) (void *field); /* Reader function */
  31 };
  32
  33 /* Initialiser for a struct efx_sw_stat_desc with type-checking */
  34 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
  35                                 get_stat_function) {                    \
  36         .name = #stat_name,                                             \
  37         .source = EFX_ETHTOOL_STAT_SOURCE_##source_name,                \
  38         .offset = ((((field_type *) 0) ==                               \
  39                       &((struct efx_##source_name *)0)->field) ?        \
  40                     offsetof(struct efx_##source_name, field) :         \
  41                     offsetof(struct efx_##source_name, field)),         \
  42         .get_stat = get_stat_function,                                  \
  43 }
  44
  45 static u64 efx_get_uint_stat(void *field)
  46 {
  47         return *(unsigned int *)field;
  48 }
  49
  50 static u64 efx_get_atomic_stat(void *field)
  51 {
  52         return atomic_read((atomic_t *) field);
  53 }
  54
  55 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)                \
  56         EFX_ETHTOOL_STAT(field, nic, field,                     \
  57                          atomic_t, efx_get_atomic_stat)
  58
  59 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field)                    \
  60         EFX_ETHTOOL_STAT(field, channel, n_##field,             \
  61                          unsigned int, efx_get_uint_stat)
  62
  63 #define EFX_ETHTOOL_UINT_TXQ_STAT(field)                        \
  64         EFX_ETHTOOL_STAT(tx_##field, tx_queue, field,           \
  65                          unsigned int, efx_get_uint_stat)
  66
  67 static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
  68         EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),
  69         EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
  70         EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
  71         EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
  72         EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
  73         EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
  74         EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets),
  75         EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
  76         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
  77         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
  78         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
  79         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
  80         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
  81         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
  82         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
  83 };
  84
  85 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
  86
  87 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
  88
  89 /**************************************************************************
  90  *
  91  * Ethtool operations
  92  *
  93  **************************************************************************
  94  */
  95
  96 /* Identify device by flashing LEDs */
  97 static int efx_ethtool_phys_id(struct net_device *net_dev,
  98                                enum ethtool_phys_id_state state)
  99 {
 100         struct efx_nic *efx = netdev_priv(net_dev);
 101         enum efx_led_mode mode = EFX_LED_DEFAULT;
 102
 103         switch (state) {
 104         case ETHTOOL_ID_ON:
 105                 mode = EFX_LED_ON;
 106                 break;
 107         case ETHTOOL_ID_OFF:
 108                 mode = EFX_LED_OFF;
 109                 break;
 110         case ETHTOOL_ID_INACTIVE:
 111                 mode = EFX_LED_DEFAULT;
 112                 break;
 113         case ETHTOOL_ID_ACTIVE:
 114                 return 1;       /* cycle on/off once per second */
 115         }
 116
 117         efx->type->set_id_led(efx, mode);
 118         return 0;
 119 }
 120
 121 /* This must be called with rtnl_lock held. */
 122 static int efx_ethtool_get_settings(struct net_device *net_dev,
 123                                     struct ethtool_cmd *ecmd)
 124 {
 125         struct efx_nic *efx = netdev_priv(net_dev);
 126         struct efx_link_state *link_state = &efx->link_state;
 127
 128         mutex_lock(&efx->mac_lock);
 129         efx->phy_op->get_settings(efx, ecmd);
 130         mutex_unlock(&efx->mac_lock);
 131
 132         /* Both MACs support pause frames (bidirectional and respond-only) */
 133         ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
 134
 135         if (LOOPBACK_INTERNAL(efx)) {
 136                 ethtool_cmd_speed_set(ecmd, link_state->speed);
 137                 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
 138         }
 139
 140         return 0;
 141 }
 142
 143 /* This must be called with rtnl_lock held. */
 144 static int efx_ethtool_set_settings(struct net_device *net_dev,
 145                                     struct ethtool_cmd *ecmd)
 146 {
 147         struct efx_nic *efx = netdev_priv(net_dev);
 148         int rc;
 149
 150         /* GMAC does not support 1000Mbps HD */
 151         if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
 152             (ecmd->duplex != DUPLEX_FULL)) {
 153                 netif_dbg(efx, drv, efx->net_dev,
 154                           "rejecting unsupported 1000Mbps HD setting\n");
 155                 return -EINVAL;
 156         }
 157
 158         mutex_lock(&efx->mac_lock);
 159         rc = efx->phy_op->set_settings(efx, ecmd);
 160         mutex_unlock(&efx->mac_lock);
 161         return rc;
 162 }
 163
 164 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
 165                                     struct ethtool_drvinfo *info)
 166 {
 167         struct efx_nic *efx = netdev_priv(net_dev);
 168
 169         strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
 170         strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
 171         if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
 172                 efx_mcdi_print_fwver(efx, info->fw_version,
 173                                      sizeof(info->fw_version));
 174         strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
 175 }
 176
 177 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
 178 {
 179         return efx_nic_get_regs_len(netdev_priv(net_dev));
 180 }
 181
 182 static void efx_ethtool_get_regs(struct net_device *net_dev,
 183                                  struct ethtool_regs *regs, void *buf)
 184 {
 185         struct efx_nic *efx = netdev_priv(net_dev);
 186
 187         regs->version = efx->type->revision;
 188         efx_nic_get_regs(efx, buf);
 189 }
 190
 191 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
 192 {
 193         struct efx_nic *efx = netdev_priv(net_dev);
 194         return efx->msg_enable;
 195 }
 196
 197 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
 198 {
 199         struct efx_nic *efx = netdev_priv(net_dev);
 200         efx->msg_enable = msg_enable;
 201 }
 202
 203 /**
 204  * efx_fill_test - fill in an individual self-test entry
 205  * @test_index:         Index of the test
 206  * @strings:            Ethtool strings, or %NULL
 207  * @data:               Ethtool test results, or %NULL
 208  * @test:               Pointer to test result (used only if data != %NULL)
 209  * @unit_format:        Unit name format (e.g. "chan\%d")
 210  * @unit_id:            Unit id (e.g. 0 for "chan0")
 211  * @test_format:        Test name format (e.g. "loopback.\%s.tx.sent")
 212  * @test_id:            Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
 213  *
 214  * Fill in an individual self-test entry.
 215  */
 216 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
 217                           int *test, const char *unit_format, int unit_id,
 218                           const char *test_format, const char *test_id)
 219 {
 220         char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
 221
 222         /* Fill data value, if applicable */
 223         if (data)
 224                 data[test_index] = *test;
 225
 226         /* Fill string, if applicable */
 227         if (strings) {
 228                 if (strchr(unit_format, '%'))
 229                         snprintf(unit_str, sizeof(unit_str),
 230                                  unit_format, unit_id);
 231                 else
 232                         strcpy(unit_str, unit_format);
 233                 snprintf(test_str, sizeof(test_str), test_format, test_id);
 234                 snprintf(strings + test_index * ETH_GSTRING_LEN,
 235                          ETH_GSTRING_LEN,
 236                          "%-6s %-24s", unit_str, test_str);
 237         }
 238 }
 239
 240 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
 241 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
 242 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
 243 #define EFX_LOOPBACK_NAME(_mode, _counter)                      \
 244         "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
 245
 246 /**
 247  * efx_fill_loopback_test - fill in a block of loopback self-test entries
 248  * @efx:                Efx NIC
 249  * @lb_tests:           Efx loopback self-test results structure
 250  * @mode:               Loopback test mode
 251  * @test_index:         Starting index of the test
 252  * @strings:            Ethtool strings, or %NULL
 253  * @data:               Ethtool test results, or %NULL
 254  *
 255  * Fill in a block of loopback self-test entries.  Return new test
 256  * index.
 257  */
 258 static int efx_fill_loopback_test(struct efx_nic *efx,
 259                                   struct efx_loopback_self_tests *lb_tests,
 260                                   enum efx_loopback_mode mode,
 261                                   unsigned int test_index,
 262                                   u8 *strings, u64 *data)
 263 {
 264         struct efx_channel *channel =
 265                 efx_get_channel(efx, efx->tx_channel_offset);
 266         struct efx_tx_queue *tx_queue;
 267
 268         efx_for_each_channel_tx_queue(tx_queue, channel) {
 269                 efx_fill_test(test_index++, strings, data,
 270                               &lb_tests->tx_sent[tx_queue->queue],
 271                               EFX_TX_QUEUE_NAME(tx_queue),
 272                               EFX_LOOPBACK_NAME(mode, "tx_sent"));
 273                 efx_fill_test(test_index++, strings, data,
 274                               &lb_tests->tx_done[tx_queue->queue],
 275                               EFX_TX_QUEUE_NAME(tx_queue),
 276                               EFX_LOOPBACK_NAME(mode, "tx_done"));
 277         }
 278         efx_fill_test(test_index++, strings, data,
 279                       &lb_tests->rx_good,
 280                       "rx", 0,
 281                       EFX_LOOPBACK_NAME(mode, "rx_good"));
 282         efx_fill_test(test_index++, strings, data,
 283                       &lb_tests->rx_bad,
 284                       "rx", 0,
 285                       EFX_LOOPBACK_NAME(mode, "rx_bad"));
 286
 287         return test_index;
 288 }
 289
 290 /**
 291  * efx_ethtool_fill_self_tests - get self-test details
 292  * @efx:                Efx NIC
 293  * @tests:              Efx self-test results structure, or %NULL
 294  * @strings:            Ethtool strings, or %NULL
 295  * @data:               Ethtool test results, or %NULL
 296  *
 297  * Get self-test number of strings, strings, and/or test results.
 298  * Return number of strings (== number of test results).
 299  *
 300  * The reason for merging these three functions is to make sure that
 301  * they can never be inconsistent.
 302  */
 303 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
 304                                        struct efx_self_tests *tests,
 305                                        u8 *strings, u64 *data)
 306 {
 307         struct efx_channel *channel;
 308         unsigned int n = 0, i;
 309         enum efx_loopback_mode mode;
 310
 311         efx_fill_test(n++, strings, data, &tests->phy_alive,
 312                       "phy", 0, "alive", NULL);
 313         efx_fill_test(n++, strings, data, &tests->nvram,
 314                       "core", 0, "nvram", NULL);
 315         efx_fill_test(n++, strings, data, &tests->interrupt,
 316                       "core", 0, "interrupt", NULL);
 317
 318         /* Event queues */
 319         efx_for_each_channel(channel, efx) {
 320                 efx_fill_test(n++, strings, data,
 321                               &tests->eventq_dma[channel->channel],
 322                               EFX_CHANNEL_NAME(channel),
 323                               "eventq.dma", NULL);
 324                 efx_fill_test(n++, strings, data,
 325                               &tests->eventq_int[channel->channel],
 326                               EFX_CHANNEL_NAME(channel),
 327                               "eventq.int", NULL);
 328         }
 329
 330         efx_fill_test(n++, strings, data, &tests->memory,
 331                       "core", 0, "memory", NULL);
 332         efx_fill_test(n++, strings, data, &tests->registers,
 333                       "core", 0, "registers", NULL);
 334
 335         if (efx->phy_op->run_tests != NULL) {
 336                 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
 337
 338                 for (i = 0; true; ++i) {
 339                         const char *name;
 340
 341                         EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
 342                         name = efx->phy_op->test_name(efx, i);
 343                         if (name == NULL)
 344                                 break;
 345
 346                         efx_fill_test(n++, strings, data, &tests->phy_ext[i],
 347                                       "phy", 0, name, NULL);
 348                 }
 349         }
 350
 351         /* Loopback tests */
 352         for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
 353                 if (!(efx->loopback_modes & (1 << mode)))
 354                         continue;
 355                 n = efx_fill_loopback_test(efx,
 356                                            &tests->loopback[mode], mode, n,
 357                                            strings, data);
 358         }
 359
 360         return n;
 361 }
 362
 363 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
 364 {
 365         size_t n_stats = 0;
 366         struct efx_channel *channel;
 367
 368         efx_for_each_channel(channel, efx) {
 369                 if (efx_channel_has_tx_queues(channel)) {
 370                         n_stats++;
 371                         if (strings != NULL) {
 372                                 snprintf(strings, ETH_GSTRING_LEN,
 373                                          "tx-%u.tx_packets",
 374                                          channel->tx_queue[0].queue /
 375                                          EFX_TXQ_TYPES);
 376
 377                                 strings += ETH_GSTRING_LEN;
 378                         }
 379                 }
 380         }
 381         efx_for_each_channel(channel, efx) {
 382                 if (efx_channel_has_rx_queue(channel)) {
 383                         n_stats++;
 384                         if (strings != NULL) {
 385                                 snprintf(strings, ETH_GSTRING_LEN,
 386                                          "rx-%d.rx_packets", channel->channel);
 387                                 strings += ETH_GSTRING_LEN;
 388                         }
 389                 }
 390         }
 391         return n_stats;
 392 }
 393
 394 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
 395                                       int string_set)
 396 {
 397         struct efx_nic *efx = netdev_priv(net_dev);
 398
 399         switch (string_set) {
 400         case ETH_SS_STATS:
 401                 return efx->type->describe_stats(efx, NULL) +
 402                        EFX_ETHTOOL_SW_STAT_COUNT +
 403                        efx_describe_per_queue_stats(efx, NULL) +
 404                        efx_ptp_describe_stats(efx, NULL);
 405         case ETH_SS_TEST:
 406                 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
 407         default:
 408                 return -EINVAL;
 409         }
 410 }
 411
 412 static void efx_ethtool_get_strings(struct net_device *net_dev,
 413                                     u32 string_set, u8 *strings)
 414 {
 415         struct efx_nic *efx = netdev_priv(net_dev);
 416         int i;
 417
 418         switch (string_set) {
 419         case ETH_SS_STATS:
 420                 strings += (efx->type->describe_stats(efx, strings) *
 421                             ETH_GSTRING_LEN);
 422                 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
 423                         strlcpy(strings + i * ETH_GSTRING_LEN,
 424                                 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
 425                 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
 426                 strings += (efx_describe_per_queue_stats(efx, strings) *
 427                             ETH_GSTRING_LEN);
 428                 efx_ptp_describe_stats(efx, strings);
 429                 break;
 430         case ETH_SS_TEST:
 431                 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
 432                 break;
 433         default:
 434                 /* No other string sets */
 435                 break;
 436         }
 437 }
 438
 439 static void efx_ethtool_get_stats(struct net_device *net_dev,
 440                                   struct ethtool_stats *stats,
 441                                   u64 *data)
 442 {
 443         struct efx_nic *efx = netdev_priv(net_dev);
 444         const struct efx_sw_stat_desc *stat;
 445         struct efx_channel *channel;
 446         struct efx_tx_queue *tx_queue;
 447         struct efx_rx_queue *rx_queue;
 448         int i;
 449
 450         spin_lock_bh(&efx->stats_lock);
 451
 452         /* Get NIC statistics */
 453         data += efx->type->update_stats(efx, data, NULL);
 454
 455         /* Get software statistics */
 456         for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
 457                 stat = &efx_sw_stat_desc[i];
 458                 switch (stat->source) {
 459                 case EFX_ETHTOOL_STAT_SOURCE_nic:
 460                         data[i] = stat->get_stat((void *)efx + stat->offset);
 461                         break;
 462                 case EFX_ETHTOOL_STAT_SOURCE_channel:
 463                         data[i] = 0;
 464                         efx_for_each_channel(channel, efx)
 465                                 data[i] += stat->get_stat((void *)channel +
 466                                                           stat->offset);
 467                         break;
 468                 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
 469                         data[i] = 0;
 470                         efx_for_each_channel(channel, efx) {
 471                                 efx_for_each_channel_tx_queue(tx_queue, channel)
 472                                         data[i] +=
 473                                                 stat->get_stat((void *)tx_queue
 474                                                                + stat->offset);
 475                         }
 476                         break;
 477                 }
 478         }
 479         data += EFX_ETHTOOL_SW_STAT_COUNT;
 480
 481         spin_unlock_bh(&efx->stats_lock);
 482
 483         efx_for_each_channel(channel, efx) {
 484                 if (efx_channel_has_tx_queues(channel)) {
 485                         *data = 0;
 486                         efx_for_each_channel_tx_queue(tx_queue, channel) {
 487                                 *data += tx_queue->tx_packets;
 488                         }
 489                         data++;
 490                 }
 491         }
 492         efx_for_each_channel(channel, efx) {
 493                 if (efx_channel_has_rx_queue(channel)) {
 494                         *data = 0;
 495                         efx_for_each_channel_rx_queue(rx_queue, channel) {
 496                                 *data += rx_queue->rx_packets;
 497                         }
 498                         data++;
 499                 }
 500         }
 501
 502         efx_ptp_update_stats(efx, data);
 503 }
 504
 505 static void efx_ethtool_self_test(struct net_device *net_dev,
 506                                   struct ethtool_test *test, u64 *data)
 507 {
 508         struct efx_nic *efx = netdev_priv(net_dev);
 509         struct efx_self_tests *efx_tests;
 510         bool already_up;
 511         int rc = -ENOMEM;
 512
 513         efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
 514         if (!efx_tests)
 515                 goto fail;
 516
 517         if (efx->state != STATE_READY) {
 518                 rc = -EBUSY;
 519                 goto out;
 520         }
 521
 522         netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
 523                    (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
 524
 525         /* We need rx buffers and interrupts. */
 526         already_up = (efx->net_dev->flags & IFF_UP);
 527         if (!already_up) {
 528                 rc = dev_open(efx->net_dev);
 529                 if (rc) {
 530                         netif_err(efx, drv, efx->net_dev,
 531                                   "failed opening device.\n");
 532                         goto out;
 533                 }
 534         }
 535
 536         rc = efx_selftest(efx, efx_tests, test->flags);
 537
 538         if (!already_up)
 539                 dev_close(efx->net_dev);
 540
 541         netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
 542                    rc == 0 ? "passed" : "failed",
 543                    (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
 544
 545 out:
 546         efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
 547         kfree(efx_tests);
 548 fail:
 549         if (rc)
 550                 test->flags |= ETH_TEST_FL_FAILED;
 551 }
 552
 553 /* Restart autonegotiation */
 554 static int efx_ethtool_nway_reset(struct net_device *net_dev)
 555 {
 556         struct efx_nic *efx = netdev_priv(net_dev);
 557
 558         return mdio45_nway_restart(&efx->mdio);
 559 }
 560
 561 /*
 562  * Each channel has a single IRQ and moderation timer, started by any
 563  * completion (or other event).  Unless the module parameter
 564  * separate_tx_channels is set, IRQs and moderation are therefore
 565  * shared between RX and TX completions.  In this case, when RX IRQ
 566  * moderation is explicitly changed then TX IRQ moderation is
 567  * automatically changed too, but otherwise we fail if the two values
 568  * are requested to be different.
 569  *
 570  * The hardware does not support a limit on the number of completions
 571  * before an IRQ, so we do not use the max_frames fields.  We should
 572  * report and require that max_frames == (usecs != 0), but this would
 573  * invalidate existing user documentation.
 574  *
 575  * The hardware does not have distinct settings for interrupt
 576  * moderation while the previous IRQ is being handled, so we should
 577  * not use the 'irq' fields.  However, an earlier developer
 578  * misunderstood the meaning of the 'irq' fields and the driver did
 579  * not support the standard fields.  To avoid invalidating existing
 580  * user documentation, we report and accept changes through either the
 581  * standard or 'irq' fields.  If both are changed at the same time, we
 582  * prefer the standard field.
 583  *
 584  * We implement adaptive IRQ moderation, but use a different algorithm
 585  * from that assumed in the definition of struct ethtool_coalesce.
 586  * Therefore we do not use any of the adaptive moderation parameters
 587  * in it.
 588  */
 589
 590 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
 591                                     struct ethtool_coalesce *coalesce)
 592 {
 593         struct efx_nic *efx = netdev_priv(net_dev);
 594         unsigned int tx_usecs, rx_usecs;
 595         bool rx_adaptive;
 596
 597         efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
 598
 599         coalesce->tx_coalesce_usecs = tx_usecs;
 600         coalesce->tx_coalesce_usecs_irq = tx_usecs;
 601         coalesce->rx_coalesce_usecs = rx_usecs;
 602         coalesce->rx_coalesce_usecs_irq = rx_usecs;
 603         coalesce->use_adaptive_rx_coalesce = rx_adaptive;
 604
 605         return 0;
 606 }
 607
 608 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
 609                                     struct ethtool_coalesce *coalesce)
 610 {
 611         struct efx_nic *efx = netdev_priv(net_dev);
 612         struct efx_channel *channel;
 613         unsigned int tx_usecs, rx_usecs;
 614         bool adaptive, rx_may_override_tx;
 615         int rc;
 616
 617         if (coalesce->use_adaptive_tx_coalesce)
 618                 return -EINVAL;
 619
 620         efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
 621
 622         if (coalesce->rx_coalesce_usecs != rx_usecs)
 623                 rx_usecs = coalesce->rx_coalesce_usecs;
 624         else
 625                 rx_usecs = coalesce->rx_coalesce_usecs_irq;
 626
 627         adaptive = coalesce->use_adaptive_rx_coalesce;
 628
 629         /* If channels are shared, TX IRQ moderation can be quietly
 630          * overridden unless it is changed from its old value.
 631          */
 632         rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
 633                               coalesce->tx_coalesce_usecs_irq == tx_usecs);
 634         if (coalesce->tx_coalesce_usecs != tx_usecs)
 635                 tx_usecs = coalesce->tx_coalesce_usecs;
 636         else
 637                 tx_usecs = coalesce->tx_coalesce_usecs_irq;
 638
 639         rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
 640                                      rx_may_override_tx);
 641         if (rc != 0)
 642                 return rc;
 643
 644         efx_for_each_channel(channel, efx)
 645                 efx->type->push_irq_moderation(channel);
 646
 647         return 0;
 648 }
 649
 650 static void efx_ethtool_get_ringparam(struct net_device *net_dev,
 651                                       struct ethtool_ringparam *ring)
 652 {
 653         struct efx_nic *efx = netdev_priv(net_dev);
 654
 655         ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
 656         ring->tx_max_pending = EFX_TXQ_MAX_ENT(efx);
 657         ring->rx_pending = efx->rxq_entries;
 658         ring->tx_pending = efx->txq_entries;
 659 }
 660
 661 static int efx_ethtool_set_ringparam(struct net_device *net_dev,
 662                                      struct ethtool_ringparam *ring)
 663 {
 664         struct efx_nic *efx = netdev_priv(net_dev);
 665         u32 txq_entries;
 666
 667         if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
 668             ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
 669             ring->tx_pending > EFX_TXQ_MAX_ENT(efx))
 670                 return -EINVAL;
 671
 672         if (ring->rx_pending < EFX_RXQ_MIN_ENT) {
 673                 netif_err(efx, drv, efx->net_dev,
 674                           "RX queues cannot be smaller than %u\n",
 675                           EFX_RXQ_MIN_ENT);
 676                 return -EINVAL;
 677         }
 678
 679         txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx));
 680         if (txq_entries != ring->tx_pending)
 681                 netif_warn(efx, drv, efx->net_dev,
 682                            "increasing TX queue size to minimum of %u\n",
 683                            txq_entries);
 684
 685         return efx_realloc_channels(efx, ring->rx_pending, txq_entries);
 686 }
 687
 688 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
 689                                       struct ethtool_pauseparam *pause)
 690 {
 691         struct efx_nic *efx = netdev_priv(net_dev);
 692         u8 wanted_fc, old_fc;
 693         u32 old_adv;
 694         int rc = 0;
 695
 696         mutex_lock(&efx->mac_lock);
 697
 698         wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
 699                      (pause->tx_pause ? EFX_FC_TX : 0) |
 700                      (pause->autoneg ? EFX_FC_AUTO : 0));
 701
 702         if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
 703                 netif_dbg(efx, drv, efx->net_dev,
 704                           "Flow control unsupported: tx ON rx OFF\n");
 705                 rc = -EINVAL;
 706                 goto out;
 707         }
 708
 709         if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
 710                 netif_dbg(efx, drv, efx->net_dev,
 711                           "Autonegotiation is disabled\n");
 712                 rc = -EINVAL;
 713                 goto out;
 714         }
 715
 716         /* Hook for Falcon bug 11482 workaround */
 717         if (efx->type->prepare_enable_fc_tx &&
 718             (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
 719                 efx->type->prepare_enable_fc_tx(efx);
 720
 721         old_adv = efx->link_advertising;
 722         old_fc = efx->wanted_fc;
 723         efx_link_set_wanted_fc(efx, wanted_fc);
 724         if (efx->link_advertising != old_adv ||
 725             (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
 726                 rc = efx->phy_op->reconfigure(efx);
 727                 if (rc) {
 728                         netif_err(efx, drv, efx->net_dev,
 729                                   "Unable to advertise requested flow "
 730                                   "control setting\n");
 731                         goto out;
 732                 }
 733         }
 734
 735         /* Reconfigure the MAC. The PHY *may* generate a link state change event
 736          * if the user just changed the advertised capabilities, but there's no
 737          * harm doing this twice */
 738         efx_mac_reconfigure(efx);
 739
 740 out:
 741         mutex_unlock(&efx->mac_lock);
 742
 743         return rc;
 744 }
 745
 746 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
 747                                        struct ethtool_pauseparam *pause)
 748 {
 749         struct efx_nic *efx = netdev_priv(net_dev);
 750
 751         pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
 752         pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
 753         pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
 754 }
 755
 756 static void efx_ethtool_get_wol(struct net_device *net_dev,
 757                                 struct ethtool_wolinfo *wol)
 758 {
 759         struct efx_nic *efx = netdev_priv(net_dev);
 760         return efx->type->get_wol(efx, wol);
 761 }
 762
 763
 764 static int efx_ethtool_set_wol(struct net_device *net_dev,
 765                                struct ethtool_wolinfo *wol)
 766 {
 767         struct efx_nic *efx = netdev_priv(net_dev);
 768         return efx->type->set_wol(efx, wol->wolopts);
 769 }
 770
 771 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
 772 {
 773         struct efx_nic *efx = netdev_priv(net_dev);
 774         int rc;
 775
 776         rc = efx->type->map_reset_flags(flags);
 777         if (rc < 0)
 778                 return rc;
 779
 780         return efx_reset(efx, rc);
 781 }
 782
 783 /* MAC address mask including only I/G bit */
 784 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
 785
 786 #define IP4_ADDR_FULL_MASK      ((__force __be32)~0)
 787 #define IP_PROTO_FULL_MASK      0xFF
 788 #define PORT_FULL_MASK          ((__force __be16)~0)
 789 #define ETHER_TYPE_FULL_MASK    ((__force __be16)~0)
 790
 791 static inline void ip6_fill_mask(__be32 *mask)
 792 {
 793         mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
 794 }
 795
 796 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
 797                                       struct ethtool_rx_flow_spec *rule)
 798 {
 799         struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
 800         struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
 801         struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
 802         struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
 803         struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
 804         struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
 805         struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
 806         struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
 807         struct ethhdr *mac_entry = &rule->h_u.ether_spec;
 808         struct ethhdr *mac_mask = &rule->m_u.ether_spec;
 809         struct efx_filter_spec spec;
 810         int rc;
 811
 812         rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
 813                                         rule->location, &spec);
 814         if (rc)
 815                 return rc;
 816
 817         if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
 818                 rule->ring_cookie = RX_CLS_FLOW_DISC;
 819         else
 820                 rule->ring_cookie = spec.dmaq_id;
 821
 822         if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
 823             spec.ether_type == htons(ETH_P_IP) &&
 824             (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
 825             (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
 826             !(spec.match_flags &
 827               ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
 828                 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
 829                 EFX_FILTER_MATCH_IP_PROTO |
 830                 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
 831                 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
 832                                    TCP_V4_FLOW : UDP_V4_FLOW);
 833                 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
 834                         ip_entry->ip4dst = spec.loc_host[0];
 835                         ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
 836                 }
 837                 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
 838                         ip_entry->ip4src = spec.rem_host[0];
 839                         ip_mask->ip4src = IP4_ADDR_FULL_MASK;
 840                 }
 841                 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
 842                         ip_entry->pdst = spec.loc_port;
 843                         ip_mask->pdst = PORT_FULL_MASK;
 844                 }
 845                 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
 846                         ip_entry->psrc = spec.rem_port;
 847                         ip_mask->psrc = PORT_FULL_MASK;
 848                 }
 849         } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
 850             spec.ether_type == htons(ETH_P_IPV6) &&
 851             (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
 852             (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
 853             !(spec.match_flags &
 854               ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
 855                 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
 856                 EFX_FILTER_MATCH_IP_PROTO |
 857                 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
 858                 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
 859                                    TCP_V6_FLOW : UDP_V6_FLOW);
 860                 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
 861                         memcpy(ip6_entry->ip6dst, spec.loc_host,
 862                                sizeof(ip6_entry->ip6dst));
 863                         ip6_fill_mask(ip6_mask->ip6dst);
 864                 }
 865                 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
 866                         memcpy(ip6_entry->ip6src, spec.rem_host,
 867                                sizeof(ip6_entry->ip6src));
 868                         ip6_fill_mask(ip6_mask->ip6src);
 869                 }
 870                 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
 871                         ip6_entry->pdst = spec.loc_port;
 872                         ip6_mask->pdst = PORT_FULL_MASK;
 873                 }
 874                 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
 875                         ip6_entry->psrc = spec.rem_port;
 876                         ip6_mask->psrc = PORT_FULL_MASK;
 877                 }
 878         } else if (!(spec.match_flags &
 879                      ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
 880                        EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
 881                        EFX_FILTER_MATCH_OUTER_VID))) {
 882                 rule->flow_type = ETHER_FLOW;
 883                 if (spec.match_flags &
 884                     (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
 885                         ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
 886                         if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
 887                                 eth_broadcast_addr(mac_mask->h_dest);
 888                         else
 889                                 ether_addr_copy(mac_mask->h_dest,
 890                                                 mac_addr_ig_mask);
 891                 }
 892                 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
 893                         ether_addr_copy(mac_entry->h_source, spec.rem_mac);
 894                         eth_broadcast_addr(mac_mask->h_source);
 895                 }
 896                 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
 897                         mac_entry->h_proto = spec.ether_type;
 898                         mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
 899                 }
 900         } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
 901                    spec.ether_type == htons(ETH_P_IP) &&
 902                    !(spec.match_flags &
 903                      ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
 904                        EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
 905                        EFX_FILTER_MATCH_IP_PROTO))) {
 906                 rule->flow_type = IPV4_USER_FLOW;
 907                 uip_entry->ip_ver = ETH_RX_NFC_IP4;
 908                 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
 909                         uip_mask->proto = IP_PROTO_FULL_MASK;
 910                         uip_entry->proto = spec.ip_proto;
 911                 }
 912                 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
 913                         uip_entry->ip4dst = spec.loc_host[0];
 914                         uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
 915                 }
 916                 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
 917                         uip_entry->ip4src = spec.rem_host[0];
 918                         uip_mask->ip4src = IP4_ADDR_FULL_MASK;
 919                 }
 920         } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
 921                    spec.ether_type == htons(ETH_P_IPV6) &&
 922                    !(spec.match_flags &
 923                      ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
 924                        EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
 925                        EFX_FILTER_MATCH_IP_PROTO))) {
 926                 rule->flow_type = IPV6_USER_FLOW;
 927                 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
 928                         uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
 929                         uip6_entry->l4_proto = spec.ip_proto;
 930                 }
 931                 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
 932                         memcpy(uip6_entry->ip6dst, spec.loc_host,
 933                                sizeof(uip6_entry->ip6dst));
 934                         ip6_fill_mask(uip6_mask->ip6dst);
 935                 }
 936                 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
 937                         memcpy(uip6_entry->ip6src, spec.rem_host,
 938                                sizeof(uip6_entry->ip6src));
 939                         ip6_fill_mask(uip6_mask->ip6src);
 940                 }
 941         } else {
 942                 /* The above should handle all filters that we insert */
 943                 WARN_ON(1);
 944                 return -EINVAL;
 945         }
 946
 947         if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
 948                 rule->flow_type |= FLOW_EXT;
 949                 rule->h_ext.vlan_tci = spec.outer_vid;
 950                 rule->m_ext.vlan_tci = htons(0xfff);
 951         }
 952
 953         return rc;
 954 }
 955
 956 static int
 957 efx_ethtool_get_rxnfc(struct net_device *net_dev,
 958                       struct ethtool_rxnfc *info, u32 *rule_locs)
 959 {
 960         struct efx_nic *efx = netdev_priv(net_dev);
 961
 962         switch (info->cmd) {
 963         case ETHTOOL_GRXRINGS:
 964                 info->data = efx->n_rx_channels;
 965                 return 0;
 966
 967         case ETHTOOL_GRXFH: {
 968                 unsigned min_revision = 0;
 969
 970                 info->data = 0;
 971                 switch (info->flow_type) {
 972                 case UDP_V4_FLOW:
 973                         if (efx->rx_hash_udp_4tuple)
 974                                 /* fall through */
 975                 case TCP_V4_FLOW:
 976                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 977                         /* fall through */
 978                 case SCTP_V4_FLOW:
 979                 case AH_ESP_V4_FLOW:
 980                 case IPV4_FLOW:
 981                         info->data |= RXH_IP_SRC | RXH_IP_DST;
 982                         min_revision = EFX_REV_FALCON_B0;
 983                         break;
 984                 case UDP_V6_FLOW:
 985                         if (efx->rx_hash_udp_4tuple)
 986                                 /* fall through */
 987                 case TCP_V6_FLOW:
 988                                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 989                         /* fall through */
 990                 case SCTP_V6_FLOW:
 991                 case AH_ESP_V6_FLOW:
 992                 case IPV6_FLOW:
 993                         info->data |= RXH_IP_SRC | RXH_IP_DST;
 994                         min_revision = EFX_REV_SIENA_A0;
 995                         break;
 996                 default:
 997                         break;
 998                 }
 999                 if (efx_nic_rev(efx) < min_revision)
1000                         info->data = 0;
1001                 return 0;
1002         }
1003
1004         case ETHTOOL_GRXCLSRLCNT:
1005                 info->data = efx_filter_get_rx_id_limit(efx);
1006                 if (info->data == 0)
1007                         return -EOPNOTSUPP;
1008                 info->data |= RX_CLS_LOC_SPECIAL;
1009                 info->rule_cnt =
1010                         efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
1011                 return 0;
1012
1013         case ETHTOOL_GRXCLSRULE:
1014                 if (efx_filter_get_rx_id_limit(efx) == 0)
1015                         return -EOPNOTSUPP;
1016                 return efx_ethtool_get_class_rule(efx, &info->fs);
1017
1018         case ETHTOOL_GRXCLSRLALL: {
1019                 s32 rc;
1020                 info->data = efx_filter_get_rx_id_limit(efx);
1021                 if (info->data == 0)
1022                         return -EOPNOTSUPP;
1023                 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
1024                                            rule_locs, info->rule_cnt);
1025                 if (rc < 0)
1026                         return rc;
1027                 info->rule_cnt = rc;
1028                 return 0;
1029         }
1030
1031         default:
1032                 return -EOPNOTSUPP;
1033         }
1034 }
1035
1036 static inline bool ip6_mask_is_full(__be32 mask[4])
1037 {
1038         return !~(mask[0] & mask[1] & mask[2] & mask[3]);
1039 }
1040
1041 static inline bool ip6_mask_is_empty(__be32 mask[4])
1042 {
1043         return !(mask[0] | mask[1] | mask[2] | mask[3]);
1044 }
1045
1046 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
1047                                       struct ethtool_rx_flow_spec *rule)
1048 {
1049         struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
1050         struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
1051         struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
1052         struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
1053         struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
1054         struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
1055         struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
1056         struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
1057         struct ethhdr *mac_entry = &rule->h_u.ether_spec;
1058         struct ethhdr *mac_mask = &rule->m_u.ether_spec;
1059         struct efx_filter_spec spec;
1060         int rc;
1061
1062         /* Check that user wants us to choose the location */
1063         if (rule->location != RX_CLS_LOC_ANY)
1064                 return -EINVAL;
1065
1066         /* Range-check ring_cookie */
1067         if (rule->ring_cookie >= efx->n_rx_channels &&
1068             rule->ring_cookie != RX_CLS_FLOW_DISC)
1069                 return -EINVAL;
1070
1071         /* Check for unsupported extensions */
1072         if ((rule->flow_type & FLOW_EXT) &&
1073             (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
1074              rule->m_ext.data[1]))
1075                 return -EINVAL;
1076
1077         efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
1078                            efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0,
1079                            (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
1080                            EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
1081
1082         switch (rule->flow_type & ~FLOW_EXT) {
1083         case TCP_V4_FLOW:
1084         case UDP_V4_FLOW:
1085                 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1086                                     EFX_FILTER_MATCH_IP_PROTO);
1087                 spec.ether_type = htons(ETH_P_IP);
1088                 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
1089                                  IPPROTO_TCP : IPPROTO_UDP);
1090                 if (ip_mask->ip4dst) {
1091                         if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1092                                 return -EINVAL;
1093                         spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1094                         spec.loc_host[0] = ip_entry->ip4dst;
1095                 }
1096                 if (ip_mask->ip4src) {
1097                         if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
1098                                 return -EINVAL;
1099                         spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1100                         spec.rem_host[0] = ip_entry->ip4src;
1101                 }
1102                 if (ip_mask->pdst) {
1103                         if (ip_mask->pdst != PORT_FULL_MASK)
1104                                 return -EINVAL;
1105                         spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1106                         spec.loc_port = ip_entry->pdst;
1107                 }
1108                 if (ip_mask->psrc) {
1109                         if (ip_mask->psrc != PORT_FULL_MASK)
1110                                 return -EINVAL;
1111                         spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1112                         spec.rem_port = ip_entry->psrc;
1113                 }
1114                 if (ip_mask->tos)
1115                         return -EINVAL;
1116                 break;
1117
1118         case TCP_V6_FLOW:
1119         case UDP_V6_FLOW:
1120                 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1121                                     EFX_FILTER_MATCH_IP_PROTO);
1122                 spec.ether_type = htons(ETH_P_IPV6);
1123                 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ?
1124                                  IPPROTO_TCP : IPPROTO_UDP);
1125                 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1126                         if (!ip6_mask_is_full(ip6_mask->ip6dst))
1127                                 return -EINVAL;
1128                         spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1129                         memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1130                 }
1131                 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1132                         if (!ip6_mask_is_full(ip6_mask->ip6src))
1133                                 return -EINVAL;
1134                         spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1135                         memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1136                 }
1137                 if (ip6_mask->pdst) {
1138                         if (ip6_mask->pdst != PORT_FULL_MASK)
1139                                 return -EINVAL;
1140                         spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1141                         spec.loc_port = ip6_entry->pdst;
1142                 }
1143                 if (ip6_mask->psrc) {
1144                         if (ip6_mask->psrc != PORT_FULL_MASK)
1145                                 return -EINVAL;
1146                         spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1147                         spec.rem_port = ip6_entry->psrc;
1148                 }
1149                 if (ip6_mask->tclass)
1150                         return -EINVAL;
1151                 break;
1152
1153         case IPV4_USER_FLOW:
1154                 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1155                     uip_entry->ip_ver != ETH_RX_NFC_IP4)
1156                         return -EINVAL;
1157                 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1158                 spec.ether_type = htons(ETH_P_IP);
1159                 if (uip_mask->ip4dst) {
1160                         if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1161                                 return -EINVAL;
1162                         spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1163                         spec.loc_host[0] = uip_entry->ip4dst;
1164                 }
1165                 if (uip_mask->ip4src) {
1166                         if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1167                                 return -EINVAL;
1168                         spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1169                         spec.rem_host[0] = uip_entry->ip4src;
1170                 }
1171                 if (uip_mask->proto) {
1172                         if (uip_mask->proto != IP_PROTO_FULL_MASK)
1173                                 return -EINVAL;
1174                         spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1175                         spec.ip_proto = uip_entry->proto;
1176                 }
1177                 break;
1178
1179         case IPV6_USER_FLOW:
1180                 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1181                         return -EINVAL;
1182                 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1183                 spec.ether_type = htons(ETH_P_IPV6);
1184                 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1185                         if (!ip6_mask_is_full(uip6_mask->ip6dst))
1186                                 return -EINVAL;
1187                         spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1188                         memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1189                 }
1190                 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1191                         if (!ip6_mask_is_full(uip6_mask->ip6src))
1192                                 return -EINVAL;
1193                         spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1194                         memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1195                 }
1196                 if (uip6_mask->l4_proto) {
1197                         if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1198                                 return -EINVAL;
1199                         spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1200                         spec.ip_proto = uip6_entry->l4_proto;
1201                 }
1202                 break;
1203
1204         case ETHER_FLOW:
1205                 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1206                         if (ether_addr_equal(mac_mask->h_dest,
1207                                              mac_addr_ig_mask))
1208                                 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1209                         else if (is_broadcast_ether_addr(mac_mask->h_dest))
1210                                 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1211                         else
1212                                 return -EINVAL;
1213                         ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1214                 }
1215                 if (!is_zero_ether_addr(mac_mask->h_source)) {
1216                         if (!is_broadcast_ether_addr(mac_mask->h_source))
1217                                 return -EINVAL;
1218                         spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1219                         ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1220                 }
1221                 if (mac_mask->h_proto) {
1222                         if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1223                                 return -EINVAL;
1224                         spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1225                         spec.ether_type = mac_entry->h_proto;
1226                 }
1227                 break;
1228
1229         default:
1230                 return -EINVAL;
1231         }
1232
1233         if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1234                 if (rule->m_ext.vlan_tci != htons(0xfff))
1235                         return -EINVAL;
1236                 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1237                 spec.outer_vid = rule->h_ext.vlan_tci;
1238         }
1239
1240         rc = efx_filter_insert_filter(efx, &spec, true);
1241         if (rc < 0)
1242                 return rc;
1243
1244         rule->location = rc;
1245         return 0;
1246 }
1247
1248 static int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1249                                  struct ethtool_rxnfc *info)
1250 {
1251         struct efx_nic *efx = netdev_priv(net_dev);
1252
1253         if (efx_filter_get_rx_id_limit(efx) == 0)
1254                 return -EOPNOTSUPP;
1255
1256         switch (info->cmd) {
1257         case ETHTOOL_SRXCLSRLINS:
1258                 return efx_ethtool_set_class_rule(efx, &info->fs);
1259
1260         case ETHTOOL_SRXCLSRLDEL:
1261                 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1262                                                  info->fs.location);
1263
1264         default:
1265                 return -EOPNOTSUPP;
1266         }
1267 }
1268
1269 static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1270 {
1271         struct efx_nic *efx = netdev_priv(net_dev);
1272
1273         return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 ||
1274                  efx->n_rx_channels == 1) ?
1275                 0 : ARRAY_SIZE(efx->rx_indir_table));
1276 }
1277
1278 static int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1279                                 u8 *hfunc)
1280 {
1281         struct efx_nic *efx = netdev_priv(net_dev);
1282
1283         if (hfunc)
1284                 *hfunc = ETH_RSS_HASH_TOP;
1285         if (indir)
1286                 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
1287         return 0;
1288 }
1289
1290 static int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1291                                 const u8 *key, const u8 hfunc)
1292 {
1293         struct efx_nic *efx = netdev_priv(net_dev);
1294
1295         /* We do not allow change in unsupported parameters */
1296         if (key ||
1297             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1298                 return -EOPNOTSUPP;
1299         if (!indir)
1300                 return 0;
1301
1302         return efx->type->rx_push_rss_config(efx, true, indir);
1303 }
1304
1305 static int efx_ethtool_get_ts_info(struct net_device *net_dev,
1306                                    struct ethtool_ts_info *ts_info)
1307 {
1308         struct efx_nic *efx = netdev_priv(net_dev);
1309
1310         /* Software capabilities */
1311         ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE |
1312                                     SOF_TIMESTAMPING_SOFTWARE);
1313         ts_info->phc_index = -1;
1314
1315         efx_ptp_get_ts_info(efx, ts_info);
1316         return 0;
1317 }
1318
1319 static int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1320                                          struct ethtool_eeprom *ee,
1321                                          u8 *data)
1322 {
1323         struct efx_nic *efx = netdev_priv(net_dev);
1324         int ret;
1325
1326         if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
1327                 return -EOPNOTSUPP;
1328
1329         mutex_lock(&efx->mac_lock);
1330         ret = efx->phy_op->get_module_eeprom(efx, ee, data);
1331         mutex_unlock(&efx->mac_lock);
1332
1333         return ret;
1334 }
1335
1336 static int efx_ethtool_get_module_info(struct net_device *net_dev,
1337                                        struct ethtool_modinfo *modinfo)
1338 {
1339         struct efx_nic *efx = netdev_priv(net_dev);
1340         int ret;
1341
1342         if (!efx->phy_op || !efx->phy_op->get_module_info)
1343                 return -EOPNOTSUPP;
1344
1345         mutex_lock(&efx->mac_lock);
1346         ret = efx->phy_op->get_module_info(efx, modinfo);
1347         mutex_unlock(&efx->mac_lock);
1348
1349         return ret;
1350 }
1351
1352 const struct ethtool_ops efx_ethtool_ops = {
1353         .get_settings           = efx_ethtool_get_settings,
1354         .set_settings           = efx_ethtool_set_settings,
1355         .get_drvinfo            = efx_ethtool_get_drvinfo,
1356         .get_regs_len           = efx_ethtool_get_regs_len,
1357         .get_regs               = efx_ethtool_get_regs,
1358         .get_msglevel           = efx_ethtool_get_msglevel,
1359         .set_msglevel           = efx_ethtool_set_msglevel,
1360         .nway_reset             = efx_ethtool_nway_reset,
1361         .get_link               = ethtool_op_get_link,
1362         .get_coalesce           = efx_ethtool_get_coalesce,
1363         .set_coalesce           = efx_ethtool_set_coalesce,
1364         .get_ringparam          = efx_ethtool_get_ringparam,
1365         .set_ringparam          = efx_ethtool_set_ringparam,
1366         .get_pauseparam         = efx_ethtool_get_pauseparam,
1367         .set_pauseparam         = efx_ethtool_set_pauseparam,
1368         .get_sset_count         = efx_ethtool_get_sset_count,
1369         .self_test              = efx_ethtool_self_test,
1370         .get_strings            = efx_ethtool_get_strings,
1371         .set_phys_id            = efx_ethtool_phys_id,
1372         .get_ethtool_stats      = efx_ethtool_get_stats,
1373         .get_wol                = efx_ethtool_get_wol,
1374         .set_wol                = efx_ethtool_set_wol,
1375         .reset                  = efx_ethtool_reset,
1376         .get_rxnfc              = efx_ethtool_get_rxnfc,
1377         .set_rxnfc              = efx_ethtool_set_rxnfc,
1378         .get_rxfh_indir_size    = efx_ethtool_get_rxfh_indir_size,
1379         .get_rxfh               = efx_ethtool_get_rxfh,
1380         .set_rxfh               = efx_ethtool_set_rxfh,
1381         .get_ts_info            = efx_ethtool_get_ts_info,
1382         .get_module_info        = efx_ethtool_get_module_info,
1383         .get_module_eeprom      = efx_ethtool_get_module_eeprom,
1384 };