drivers/net/ethernet/sfc/falcon/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 ef4_sw_stat_desc {
  23         const char *name;
  24         enum {
  25                 EF4_ETHTOOL_STAT_SOURCE_nic,
  26                 EF4_ETHTOOL_STAT_SOURCE_channel,
  27                 EF4_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 ef4_sw_stat_desc with type-checking */
  34 #define EF4_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
  35                                 get_stat_function) {                    \
  36         .name = #stat_name,                                             \
  37         .source = EF4_ETHTOOL_STAT_SOURCE_##source_name,                \
  38         .offset = ((((field_type *) 0) ==                               \
  39                       &((struct ef4_##source_name *)0)->field) ?        \
  40                     offsetof(struct ef4_##source_name, field) :         \
  41                     offsetof(struct ef4_##source_name, field)),         \
  42         .get_stat = get_stat_function,                                  \
  43 }
  44
  45 static u64 ef4_get_uint_stat(void *field)
  46 {
  47         return *(unsigned int *)field;
  48 }
  49
  50 static u64 ef4_get_atomic_stat(void *field)
  51 {
  52         return atomic_read((atomic_t *) field);
  53 }
  54
  55 #define EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)                \
  56         EF4_ETHTOOL_STAT(field, nic, field,                     \
  57                          atomic_t, ef4_get_atomic_stat)
  58
  59 #define EF4_ETHTOOL_UINT_CHANNEL_STAT(field)                    \
  60         EF4_ETHTOOL_STAT(field, channel, n_##field,             \
  61                          unsigned int, ef4_get_uint_stat)
  62
  63 #define EF4_ETHTOOL_UINT_TXQ_STAT(field)                        \
  64         EF4_ETHTOOL_STAT(tx_##field, tx_queue, field,           \
  65                          unsigned int, ef4_get_uint_stat)
  66
  67 static const struct ef4_sw_stat_desc ef4_sw_stat_desc[] = {
  68         EF4_ETHTOOL_UINT_TXQ_STAT(merge_events),
  69         EF4_ETHTOOL_UINT_TXQ_STAT(pushes),
  70         EF4_ETHTOOL_UINT_TXQ_STAT(cb_packets),
  71         EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
  72         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
  73         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
  74         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
  75         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
  76         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
  77         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
  78         EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
  79 };
  80
  81 #define EF4_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(ef4_sw_stat_desc)
  82
  83 #define EF4_ETHTOOL_EEPROM_MAGIC 0xEFAB
  84
  85 /**************************************************************************
  86  *
  87  * Ethtool operations
  88  *
  89  **************************************************************************
  90  */
  91
  92 /* Identify device by flashing LEDs */
  93 static int ef4_ethtool_phys_id(struct net_device *net_dev,
  94                                enum ethtool_phys_id_state state)
  95 {
  96         struct ef4_nic *efx = netdev_priv(net_dev);
  97         enum ef4_led_mode mode = EF4_LED_DEFAULT;
  98
  99         switch (state) {
 100         case ETHTOOL_ID_ON:
 101                 mode = EF4_LED_ON;
 102                 break;
 103         case ETHTOOL_ID_OFF:
 104                 mode = EF4_LED_OFF;
 105                 break;
 106         case ETHTOOL_ID_INACTIVE:
 107                 mode = EF4_LED_DEFAULT;
 108                 break;
 109         case ETHTOOL_ID_ACTIVE:
 110                 return 1;       /* cycle on/off once per second */
 111         }
 112
 113         efx->type->set_id_led(efx, mode);
 114         return 0;
 115 }
 116
 117 /* This must be called with rtnl_lock held. */
 118 static int
 119 ef4_ethtool_get_link_ksettings(struct net_device *net_dev,
 120                                struct ethtool_link_ksettings *cmd)
 121 {
 122         struct ef4_nic *efx = netdev_priv(net_dev);
 123         struct ef4_link_state *link_state = &efx->link_state;
 124
 125         mutex_lock(&efx->mac_lock);
 126         efx->phy_op->get_link_ksettings(efx, cmd);
 127         mutex_unlock(&efx->mac_lock);
 128
 129         /* Both MACs support pause frames (bidirectional and respond-only) */
 130         ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
 131         ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
 132
 133         if (LOOPBACK_INTERNAL(efx)) {
 134                 cmd->base.speed = link_state->speed;
 135                 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
 136         }
 137
 138         return 0;
 139 }
 140
 141 /* This must be called with rtnl_lock held. */
 142 static int
 143 ef4_ethtool_set_link_ksettings(struct net_device *net_dev,
 144                                const struct ethtool_link_ksettings *cmd)
 145 {
 146         struct ef4_nic *efx = netdev_priv(net_dev);
 147         int rc;
 148
 149         /* GMAC does not support 1000Mbps HD */
 150         if ((cmd->base.speed == SPEED_1000) &&
 151             (cmd->base.duplex != DUPLEX_FULL)) {
 152                 netif_dbg(efx, drv, efx->net_dev,
 153                           "rejecting unsupported 1000Mbps HD setting\n");
 154                 return -EINVAL;
 155         }
 156
 157         mutex_lock(&efx->mac_lock);
 158         rc = efx->phy_op->set_link_ksettings(efx, cmd);
 159         mutex_unlock(&efx->mac_lock);
 160         return rc;
 161 }
 162
 163 static void ef4_ethtool_get_drvinfo(struct net_device *net_dev,
 164                                     struct ethtool_drvinfo *info)
 165 {
 166         struct ef4_nic *efx = netdev_priv(net_dev);
 167
 168         strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
 169         strlcpy(info->version, EF4_DRIVER_VERSION, sizeof(info->version));
 170         strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
 171 }
 172
 173 static int ef4_ethtool_get_regs_len(struct net_device *net_dev)
 174 {
 175         return ef4_nic_get_regs_len(netdev_priv(net_dev));
 176 }
 177
 178 static void ef4_ethtool_get_regs(struct net_device *net_dev,
 179                                  struct ethtool_regs *regs, void *buf)
 180 {
 181         struct ef4_nic *efx = netdev_priv(net_dev);
 182
 183         regs->version = efx->type->revision;
 184         ef4_nic_get_regs(efx, buf);
 185 }
 186
 187 static u32 ef4_ethtool_get_msglevel(struct net_device *net_dev)
 188 {
 189         struct ef4_nic *efx = netdev_priv(net_dev);
 190         return efx->msg_enable;
 191 }
 192
 193 static void ef4_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
 194 {
 195         struct ef4_nic *efx = netdev_priv(net_dev);
 196         efx->msg_enable = msg_enable;
 197 }
 198
 199 /**
 200  * ef4_fill_test - fill in an individual self-test entry
 201  * @test_index:         Index of the test
 202  * @strings:            Ethtool strings, or %NULL
 203  * @data:               Ethtool test results, or %NULL
 204  * @test:               Pointer to test result (used only if data != %NULL)
 205  * @unit_format:        Unit name format (e.g. "chan\%d")
 206  * @unit_id:            Unit id (e.g. 0 for "chan0")
 207  * @test_format:        Test name format (e.g. "loopback.\%s.tx.sent")
 208  * @test_id:            Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
 209  *
 210  * Fill in an individual self-test entry.
 211  */
 212 static void ef4_fill_test(unsigned int test_index, u8 *strings, u64 *data,
 213                           int *test, const char *unit_format, int unit_id,
 214                           const char *test_format, const char *test_id)
 215 {
 216         char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
 217
 218         /* Fill data value, if applicable */
 219         if (data)
 220                 data[test_index] = *test;
 221
 222         /* Fill string, if applicable */
 223         if (strings) {
 224                 if (strchr(unit_format, '%'))
 225                         snprintf(unit_str, sizeof(unit_str),
 226                                  unit_format, unit_id);
 227                 else
 228                         strcpy(unit_str, unit_format);
 229                 snprintf(test_str, sizeof(test_str), test_format, test_id);
 230                 snprintf(strings + test_index * ETH_GSTRING_LEN,
 231                          ETH_GSTRING_LEN,
 232                          "%-6s %-24s", unit_str, test_str);
 233         }
 234 }
 235
 236 #define EF4_CHANNEL_NAME(_channel) "chan%d", _channel->channel
 237 #define EF4_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
 238 #define EF4_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
 239 #define EF4_LOOPBACK_NAME(_mode, _counter)                      \
 240         "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, ef4_loopback_mode)
 241
 242 /**
 243  * ef4_fill_loopback_test - fill in a block of loopback self-test entries
 244  * @efx:                Efx NIC
 245  * @lb_tests:           Efx loopback self-test results structure
 246  * @mode:               Loopback test mode
 247  * @test_index:         Starting index of the test
 248  * @strings:            Ethtool strings, or %NULL
 249  * @data:               Ethtool test results, or %NULL
 250  *
 251  * Fill in a block of loopback self-test entries.  Return new test
 252  * index.
 253  */
 254 static int ef4_fill_loopback_test(struct ef4_nic *efx,
 255                                   struct ef4_loopback_self_tests *lb_tests,
 256                                   enum ef4_loopback_mode mode,
 257                                   unsigned int test_index,
 258                                   u8 *strings, u64 *data)
 259 {
 260         struct ef4_channel *channel =
 261                 ef4_get_channel(efx, efx->tx_channel_offset);
 262         struct ef4_tx_queue *tx_queue;
 263
 264         ef4_for_each_channel_tx_queue(tx_queue, channel) {
 265                 ef4_fill_test(test_index++, strings, data,
 266                               &lb_tests->tx_sent[tx_queue->queue],
 267                               EF4_TX_QUEUE_NAME(tx_queue),
 268                               EF4_LOOPBACK_NAME(mode, "tx_sent"));
 269                 ef4_fill_test(test_index++, strings, data,
 270                               &lb_tests->tx_done[tx_queue->queue],
 271                               EF4_TX_QUEUE_NAME(tx_queue),
 272                               EF4_LOOPBACK_NAME(mode, "tx_done"));
 273         }
 274         ef4_fill_test(test_index++, strings, data,
 275                       &lb_tests->rx_good,
 276                       "rx", 0,
 277                       EF4_LOOPBACK_NAME(mode, "rx_good"));
 278         ef4_fill_test(test_index++, strings, data,
 279                       &lb_tests->rx_bad,
 280                       "rx", 0,
 281                       EF4_LOOPBACK_NAME(mode, "rx_bad"));
 282
 283         return test_index;
 284 }
 285
 286 /**
 287  * ef4_ethtool_fill_self_tests - get self-test details
 288  * @efx:                Efx NIC
 289  * @tests:              Efx self-test results structure, or %NULL
 290  * @strings:            Ethtool strings, or %NULL
 291  * @data:               Ethtool test results, or %NULL
 292  *
 293  * Get self-test number of strings, strings, and/or test results.
 294  * Return number of strings (== number of test results).
 295  *
 296  * The reason for merging these three functions is to make sure that
 297  * they can never be inconsistent.
 298  */
 299 static int ef4_ethtool_fill_self_tests(struct ef4_nic *efx,
 300                                        struct ef4_self_tests *tests,
 301                                        u8 *strings, u64 *data)
 302 {
 303         struct ef4_channel *channel;
 304         unsigned int n = 0, i;
 305         enum ef4_loopback_mode mode;
 306
 307         ef4_fill_test(n++, strings, data, &tests->phy_alive,
 308                       "phy", 0, "alive", NULL);
 309         ef4_fill_test(n++, strings, data, &tests->nvram,
 310                       "core", 0, "nvram", NULL);
 311         ef4_fill_test(n++, strings, data, &tests->interrupt,
 312                       "core", 0, "interrupt", NULL);
 313
 314         /* Event queues */
 315         ef4_for_each_channel(channel, efx) {
 316                 ef4_fill_test(n++, strings, data,
 317                               &tests->eventq_dma[channel->channel],
 318                               EF4_CHANNEL_NAME(channel),
 319                               "eventq.dma", NULL);
 320                 ef4_fill_test(n++, strings, data,
 321                               &tests->eventq_int[channel->channel],
 322                               EF4_CHANNEL_NAME(channel),
 323                               "eventq.int", NULL);
 324         }
 325
 326         ef4_fill_test(n++, strings, data, &tests->memory,
 327                       "core", 0, "memory", NULL);
 328         ef4_fill_test(n++, strings, data, &tests->registers,
 329                       "core", 0, "registers", NULL);
 330
 331         if (efx->phy_op->run_tests != NULL) {
 332                 EF4_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
 333
 334                 for (i = 0; true; ++i) {
 335                         const char *name;
 336
 337                         EF4_BUG_ON_PARANOID(i >= EF4_MAX_PHY_TESTS);
 338                         name = efx->phy_op->test_name(efx, i);
 339                         if (name == NULL)
 340                                 break;
 341
 342                         ef4_fill_test(n++, strings, data, &tests->phy_ext[i],
 343                                       "phy", 0, name, NULL);
 344                 }
 345         }
 346
 347         /* Loopback tests */
 348         for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
 349                 if (!(efx->loopback_modes & (1 << mode)))
 350                         continue;
 351                 n = ef4_fill_loopback_test(efx,
 352                                            &tests->loopback[mode], mode, n,
 353                                            strings, data);
 354         }
 355
 356         return n;
 357 }
 358
 359 static size_t ef4_describe_per_queue_stats(struct ef4_nic *efx, u8 *strings)
 360 {
 361         size_t n_stats = 0;
 362         struct ef4_channel *channel;
 363
 364         ef4_for_each_channel(channel, efx) {
 365                 if (ef4_channel_has_tx_queues(channel)) {
 366                         n_stats++;
 367                         if (strings != NULL) {
 368                                 snprintf(strings, ETH_GSTRING_LEN,
 369                                          "tx-%u.tx_packets",
 370                                          channel->tx_queue[0].queue /
 371                                          EF4_TXQ_TYPES);
 372
 373                                 strings += ETH_GSTRING_LEN;
 374                         }
 375                 }
 376         }
 377         ef4_for_each_channel(channel, efx) {
 378                 if (ef4_channel_has_rx_queue(channel)) {
 379                         n_stats++;
 380                         if (strings != NULL) {
 381                                 snprintf(strings, ETH_GSTRING_LEN,
 382                                          "rx-%d.rx_packets", channel->channel);
 383                                 strings += ETH_GSTRING_LEN;
 384                         }
 385                 }
 386         }
 387         return n_stats;
 388 }
 389
 390 static int ef4_ethtool_get_sset_count(struct net_device *net_dev,
 391                                       int string_set)
 392 {
 393         struct ef4_nic *efx = netdev_priv(net_dev);
 394
 395         switch (string_set) {
 396         case ETH_SS_STATS:
 397                 return efx->type->describe_stats(efx, NULL) +
 398                        EF4_ETHTOOL_SW_STAT_COUNT +
 399                        ef4_describe_per_queue_stats(efx, NULL);
 400         case ETH_SS_TEST:
 401                 return ef4_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
 402         default:
 403                 return -EINVAL;
 404         }
 405 }
 406
 407 static void ef4_ethtool_get_strings(struct net_device *net_dev,
 408                                     u32 string_set, u8 *strings)
 409 {
 410         struct ef4_nic *efx = netdev_priv(net_dev);
 411         int i;
 412
 413         switch (string_set) {
 414         case ETH_SS_STATS:
 415                 strings += (efx->type->describe_stats(efx, strings) *
 416                             ETH_GSTRING_LEN);
 417                 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++)
 418                         strlcpy(strings + i * ETH_GSTRING_LEN,
 419                                 ef4_sw_stat_desc[i].name, ETH_GSTRING_LEN);
 420                 strings += EF4_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
 421                 strings += (ef4_describe_per_queue_stats(efx, strings) *
 422                             ETH_GSTRING_LEN);
 423                 break;
 424         case ETH_SS_TEST:
 425                 ef4_ethtool_fill_self_tests(efx, NULL, strings, NULL);
 426                 break;
 427         default:
 428                 /* No other string sets */
 429                 break;
 430         }
 431 }
 432
 433 static void ef4_ethtool_get_stats(struct net_device *net_dev,
 434                                   struct ethtool_stats *stats,
 435                                   u64 *data)
 436 {
 437         struct ef4_nic *efx = netdev_priv(net_dev);
 438         const struct ef4_sw_stat_desc *stat;
 439         struct ef4_channel *channel;
 440         struct ef4_tx_queue *tx_queue;
 441         struct ef4_rx_queue *rx_queue;
 442         int i;
 443
 444         spin_lock_bh(&efx->stats_lock);
 445
 446         /* Get NIC statistics */
 447         data += efx->type->update_stats(efx, data, NULL);
 448
 449         /* Get software statistics */
 450         for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++) {
 451                 stat = &ef4_sw_stat_desc[i];
 452                 switch (stat->source) {
 453                 case EF4_ETHTOOL_STAT_SOURCE_nic:
 454                         data[i] = stat->get_stat((void *)efx + stat->offset);
 455                         break;
 456                 case EF4_ETHTOOL_STAT_SOURCE_channel:
 457                         data[i] = 0;
 458                         ef4_for_each_channel(channel, efx)
 459                                 data[i] += stat->get_stat((void *)channel +
 460                                                           stat->offset);
 461                         break;
 462                 case EF4_ETHTOOL_STAT_SOURCE_tx_queue:
 463                         data[i] = 0;
 464                         ef4_for_each_channel(channel, efx) {
 465                                 ef4_for_each_channel_tx_queue(tx_queue, channel)
 466                                         data[i] +=
 467                                                 stat->get_stat((void *)tx_queue
 468                                                                + stat->offset);
 469                         }
 470                         break;
 471                 }
 472         }
 473         data += EF4_ETHTOOL_SW_STAT_COUNT;
 474
 475         spin_unlock_bh(&efx->stats_lock);
 476
 477         ef4_for_each_channel(channel, efx) {
 478                 if (ef4_channel_has_tx_queues(channel)) {
 479                         *data = 0;
 480                         ef4_for_each_channel_tx_queue(tx_queue, channel) {
 481                                 *data += tx_queue->tx_packets;
 482                         }
 483                         data++;
 484                 }
 485         }
 486         ef4_for_each_channel(channel, efx) {
 487                 if (ef4_channel_has_rx_queue(channel)) {
 488                         *data = 0;
 489                         ef4_for_each_channel_rx_queue(rx_queue, channel) {
 490                                 *data += rx_queue->rx_packets;
 491                         }
 492                         data++;
 493                 }
 494         }
 495 }
 496
 497 static void ef4_ethtool_self_test(struct net_device *net_dev,
 498                                   struct ethtool_test *test, u64 *data)
 499 {
 500         struct ef4_nic *efx = netdev_priv(net_dev);
 501         struct ef4_self_tests *ef4_tests;
 502         bool already_up;
 503         int rc = -ENOMEM;
 504
 505         ef4_tests = kzalloc(sizeof(*ef4_tests), GFP_KERNEL);
 506         if (!ef4_tests)
 507                 goto fail;
 508
 509         if (efx->state != STATE_READY) {
 510                 rc = -EBUSY;
 511                 goto out;
 512         }
 513
 514         netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
 515                    (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
 516
 517         /* We need rx buffers and interrupts. */
 518         already_up = (efx->net_dev->flags & IFF_UP);
 519         if (!already_up) {
 520                 rc = dev_open(efx->net_dev);
 521                 if (rc) {
 522                         netif_err(efx, drv, efx->net_dev,
 523                                   "failed opening device.\n");
 524                         goto out;
 525                 }
 526         }
 527
 528         rc = ef4_selftest(efx, ef4_tests, test->flags);
 529
 530         if (!already_up)
 531                 dev_close(efx->net_dev);
 532
 533         netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
 534                    rc == 0 ? "passed" : "failed",
 535                    (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
 536
 537 out:
 538         ef4_ethtool_fill_self_tests(efx, ef4_tests, NULL, data);
 539         kfree(ef4_tests);
 540 fail:
 541         if (rc)
 542                 test->flags |= ETH_TEST_FL_FAILED;
 543 }
 544
 545 /* Restart autonegotiation */
 546 static int ef4_ethtool_nway_reset(struct net_device *net_dev)
 547 {
 548         struct ef4_nic *efx = netdev_priv(net_dev);
 549
 550         return mdio45_nway_restart(&efx->mdio);
 551 }
 552
 553 /*
 554  * Each channel has a single IRQ and moderation timer, started by any
 555  * completion (or other event).  Unless the module parameter
 556  * separate_tx_channels is set, IRQs and moderation are therefore
 557  * shared between RX and TX completions.  In this case, when RX IRQ
 558  * moderation is explicitly changed then TX IRQ moderation is
 559  * automatically changed too, but otherwise we fail if the two values
 560  * are requested to be different.
 561  *
 562  * The hardware does not support a limit on the number of completions
 563  * before an IRQ, so we do not use the max_frames fields.  We should
 564  * report and require that max_frames == (usecs != 0), but this would
 565  * invalidate existing user documentation.
 566  *
 567  * The hardware does not have distinct settings for interrupt
 568  * moderation while the previous IRQ is being handled, so we should
 569  * not use the 'irq' fields.  However, an earlier developer
 570  * misunderstood the meaning of the 'irq' fields and the driver did
 571  * not support the standard fields.  To avoid invalidating existing
 572  * user documentation, we report and accept changes through either the
 573  * standard or 'irq' fields.  If both are changed at the same time, we
 574  * prefer the standard field.
 575  *
 576  * We implement adaptive IRQ moderation, but use a different algorithm
 577  * from that assumed in the definition of struct ethtool_coalesce.
 578  * Therefore we do not use any of the adaptive moderation parameters
 579  * in it.
 580  */
 581
 582 static int ef4_ethtool_get_coalesce(struct net_device *net_dev,
 583                                     struct ethtool_coalesce *coalesce)
 584 {
 585         struct ef4_nic *efx = netdev_priv(net_dev);
 586         unsigned int tx_usecs, rx_usecs;
 587         bool rx_adaptive;
 588
 589         ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
 590
 591         coalesce->tx_coalesce_usecs = tx_usecs;
 592         coalesce->tx_coalesce_usecs_irq = tx_usecs;
 593         coalesce->rx_coalesce_usecs = rx_usecs;
 594         coalesce->rx_coalesce_usecs_irq = rx_usecs;
 595         coalesce->use_adaptive_rx_coalesce = rx_adaptive;
 596
 597         return 0;
 598 }
 599
 600 static int ef4_ethtool_set_coalesce(struct net_device *net_dev,
 601                                     struct ethtool_coalesce *coalesce)
 602 {
 603         struct ef4_nic *efx = netdev_priv(net_dev);
 604         struct ef4_channel *channel;
 605         unsigned int tx_usecs, rx_usecs;
 606         bool adaptive, rx_may_override_tx;
 607         int rc;
 608
 609         if (coalesce->use_adaptive_tx_coalesce)
 610                 return -EINVAL;
 611
 612         ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
 613
 614         if (coalesce->rx_coalesce_usecs != rx_usecs)
 615                 rx_usecs = coalesce->rx_coalesce_usecs;
 616         else
 617                 rx_usecs = coalesce->rx_coalesce_usecs_irq;
 618
 619         adaptive = coalesce->use_adaptive_rx_coalesce;
 620
 621         /* If channels are shared, TX IRQ moderation can be quietly
 622          * overridden unless it is changed from its old value.
 623          */
 624         rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
 625                               coalesce->tx_coalesce_usecs_irq == tx_usecs);
 626         if (coalesce->tx_coalesce_usecs != tx_usecs)
 627                 tx_usecs = coalesce->tx_coalesce_usecs;
 628         else
 629                 tx_usecs = coalesce->tx_coalesce_usecs_irq;
 630
 631         rc = ef4_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
 632                                      rx_may_override_tx);
 633         if (rc != 0)
 634                 return rc;
 635
 636         ef4_for_each_channel(channel, efx)
 637                 efx->type->push_irq_moderation(channel);
 638
 639         return 0;
 640 }
 641
 642 static void ef4_ethtool_get_ringparam(struct net_device *net_dev,
 643                                       struct ethtool_ringparam *ring)
 644 {
 645         struct ef4_nic *efx = netdev_priv(net_dev);
 646
 647         ring->rx_max_pending = EF4_MAX_DMAQ_SIZE;
 648         ring->tx_max_pending = EF4_MAX_DMAQ_SIZE;
 649         ring->rx_pending = efx->rxq_entries;
 650         ring->tx_pending = efx->txq_entries;
 651 }
 652
 653 static int ef4_ethtool_set_ringparam(struct net_device *net_dev,
 654                                      struct ethtool_ringparam *ring)
 655 {
 656         struct ef4_nic *efx = netdev_priv(net_dev);
 657         u32 txq_entries;
 658
 659         if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
 660             ring->rx_pending > EF4_MAX_DMAQ_SIZE ||
 661             ring->tx_pending > EF4_MAX_DMAQ_SIZE)
 662                 return -EINVAL;
 663
 664         if (ring->rx_pending < EF4_RXQ_MIN_ENT) {
 665                 netif_err(efx, drv, efx->net_dev,
 666                           "RX queues cannot be smaller than %u\n",
 667                           EF4_RXQ_MIN_ENT);
 668                 return -EINVAL;
 669         }
 670
 671         txq_entries = max(ring->tx_pending, EF4_TXQ_MIN_ENT(efx));
 672         if (txq_entries != ring->tx_pending)
 673                 netif_warn(efx, drv, efx->net_dev,
 674                            "increasing TX queue size to minimum of %u\n",
 675                            txq_entries);
 676
 677         return ef4_realloc_channels(efx, ring->rx_pending, txq_entries);
 678 }
 679
 680 static int ef4_ethtool_set_pauseparam(struct net_device *net_dev,
 681                                       struct ethtool_pauseparam *pause)
 682 {
 683         struct ef4_nic *efx = netdev_priv(net_dev);
 684         u8 wanted_fc, old_fc;
 685         u32 old_adv;
 686         int rc = 0;
 687
 688         mutex_lock(&efx->mac_lock);
 689
 690         wanted_fc = ((pause->rx_pause ? EF4_FC_RX : 0) |
 691                      (pause->tx_pause ? EF4_FC_TX : 0) |
 692                      (pause->autoneg ? EF4_FC_AUTO : 0));
 693
 694         if ((wanted_fc & EF4_FC_TX) && !(wanted_fc & EF4_FC_RX)) {
 695                 netif_dbg(efx, drv, efx->net_dev,
 696                           "Flow control unsupported: tx ON rx OFF\n");
 697                 rc = -EINVAL;
 698                 goto out;
 699         }
 700
 701         if ((wanted_fc & EF4_FC_AUTO) && !efx->link_advertising) {
 702                 netif_dbg(efx, drv, efx->net_dev,
 703                           "Autonegotiation is disabled\n");
 704                 rc = -EINVAL;
 705                 goto out;
 706         }
 707
 708         /* Hook for Falcon bug 11482 workaround */
 709         if (efx->type->prepare_enable_fc_tx &&
 710             (wanted_fc & EF4_FC_TX) && !(efx->wanted_fc & EF4_FC_TX))
 711                 efx->type->prepare_enable_fc_tx(efx);
 712
 713         old_adv = efx->link_advertising;
 714         old_fc = efx->wanted_fc;
 715         ef4_link_set_wanted_fc(efx, wanted_fc);
 716         if (efx->link_advertising != old_adv ||
 717             (efx->wanted_fc ^ old_fc) & EF4_FC_AUTO) {
 718                 rc = efx->phy_op->reconfigure(efx);
 719                 if (rc) {
 720                         netif_err(efx, drv, efx->net_dev,
 721                                   "Unable to advertise requested flow "
 722                                   "control setting\n");
 723                         goto out;
 724                 }
 725         }
 726
 727         /* Reconfigure the MAC. The PHY *may* generate a link state change event
 728          * if the user just changed the advertised capabilities, but there's no
 729          * harm doing this twice */
 730         ef4_mac_reconfigure(efx);
 731
 732 out:
 733         mutex_unlock(&efx->mac_lock);
 734
 735         return rc;
 736 }
 737
 738 static void ef4_ethtool_get_pauseparam(struct net_device *net_dev,
 739                                        struct ethtool_pauseparam *pause)
 740 {
 741         struct ef4_nic *efx = netdev_priv(net_dev);
 742
 743         pause->rx_pause = !!(efx->wanted_fc & EF4_FC_RX);
 744         pause->tx_pause = !!(efx->wanted_fc & EF4_FC_TX);
 745         pause->autoneg = !!(efx->wanted_fc & EF4_FC_AUTO);
 746 }
 747
 748 static void ef4_ethtool_get_wol(struct net_device *net_dev,
 749                                 struct ethtool_wolinfo *wol)
 750 {
 751         struct ef4_nic *efx = netdev_priv(net_dev);
 752         return efx->type->get_wol(efx, wol);
 753 }
 754
 755
 756 static int ef4_ethtool_set_wol(struct net_device *net_dev,
 757                                struct ethtool_wolinfo *wol)
 758 {
 759         struct ef4_nic *efx = netdev_priv(net_dev);
 760         return efx->type->set_wol(efx, wol->wolopts);
 761 }
 762
 763 static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags)
 764 {
 765         struct ef4_nic *efx = netdev_priv(net_dev);
 766         int rc;
 767
 768         rc = efx->type->map_reset_flags(flags);
 769         if (rc < 0)
 770                 return rc;
 771
 772         return ef4_reset(efx, rc);
 773 }
 774
 775 /* MAC address mask including only I/G bit */
 776 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
 777
 778 #define IP4_ADDR_FULL_MASK      ((__force __be32)~0)
 779 #define IP_PROTO_FULL_MASK      0xFF
 780 #define PORT_FULL_MASK          ((__force __be16)~0)
 781 #define ETHER_TYPE_FULL_MASK    ((__force __be16)~0)
 782
 783 static inline void ip6_fill_mask(__be32 *mask)
 784 {
 785         mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
 786 }
 787
 788 static int ef4_ethtool_get_class_rule(struct ef4_nic *efx,
 789                                       struct ethtool_rx_flow_spec *rule)
 790 {
 791         struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
 792         struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
 793         struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
 794         struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
 795         struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
 796         struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
 797         struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
 798         struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
 799         struct ethhdr *mac_entry = &rule->h_u.ether_spec;
 800         struct ethhdr *mac_mask = &rule->m_u.ether_spec;
 801         struct ef4_filter_spec spec;
 802         int rc;
 803
 804         rc = ef4_filter_get_filter_safe(efx, EF4_FILTER_PRI_MANUAL,
 805                                         rule->location, &spec);
 806         if (rc)
 807                 return rc;
 808
 809         if (spec.dmaq_id == EF4_FILTER_RX_DMAQ_ID_DROP)
 810                 rule->ring_cookie = RX_CLS_FLOW_DISC;
 811         else
 812                 rule->ring_cookie = spec.dmaq_id;
 813
 814         if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
 815             spec.ether_type == htons(ETH_P_IP) &&
 816             (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
 817             (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
 818             !(spec.match_flags &
 819               ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
 820                 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
 821                 EF4_FILTER_MATCH_IP_PROTO |
 822                 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
 823                 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
 824                                    TCP_V4_FLOW : UDP_V4_FLOW);
 825                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
 826                         ip_entry->ip4dst = spec.loc_host[0];
 827                         ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
 828                 }
 829                 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
 830                         ip_entry->ip4src = spec.rem_host[0];
 831                         ip_mask->ip4src = IP4_ADDR_FULL_MASK;
 832                 }
 833                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
 834                         ip_entry->pdst = spec.loc_port;
 835                         ip_mask->pdst = PORT_FULL_MASK;
 836                 }
 837                 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
 838                         ip_entry->psrc = spec.rem_port;
 839                         ip_mask->psrc = PORT_FULL_MASK;
 840                 }
 841         } else if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
 842             spec.ether_type == htons(ETH_P_IPV6) &&
 843             (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
 844             (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
 845             !(spec.match_flags &
 846               ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
 847                 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
 848                 EF4_FILTER_MATCH_IP_PROTO |
 849                 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
 850                 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
 851                                    TCP_V6_FLOW : UDP_V6_FLOW);
 852                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
 853                         memcpy(ip6_entry->ip6dst, spec.loc_host,
 854                                sizeof(ip6_entry->ip6dst));
 855                         ip6_fill_mask(ip6_mask->ip6dst);
 856                 }
 857                 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
 858                         memcpy(ip6_entry->ip6src, spec.rem_host,
 859                                sizeof(ip6_entry->ip6src));
 860                         ip6_fill_mask(ip6_mask->ip6src);
 861                 }
 862                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
 863                         ip6_entry->pdst = spec.loc_port;
 864                         ip6_mask->pdst = PORT_FULL_MASK;
 865                 }
 866                 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
 867                         ip6_entry->psrc = spec.rem_port;
 868                         ip6_mask->psrc = PORT_FULL_MASK;
 869                 }
 870         } else if (!(spec.match_flags &
 871                      ~(EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG |
 872                        EF4_FILTER_MATCH_REM_MAC | EF4_FILTER_MATCH_ETHER_TYPE |
 873                        EF4_FILTER_MATCH_OUTER_VID))) {
 874                 rule->flow_type = ETHER_FLOW;
 875                 if (spec.match_flags &
 876                     (EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG)) {
 877                         ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
 878                         if (spec.match_flags & EF4_FILTER_MATCH_LOC_MAC)
 879                                 eth_broadcast_addr(mac_mask->h_dest);
 880                         else
 881                                 ether_addr_copy(mac_mask->h_dest,
 882                                                 mac_addr_ig_mask);
 883                 }
 884                 if (spec.match_flags & EF4_FILTER_MATCH_REM_MAC) {
 885                         ether_addr_copy(mac_entry->h_source, spec.rem_mac);
 886                         eth_broadcast_addr(mac_mask->h_source);
 887                 }
 888                 if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) {
 889                         mac_entry->h_proto = spec.ether_type;
 890                         mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
 891                 }
 892         } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
 893                    spec.ether_type == htons(ETH_P_IP) &&
 894                    !(spec.match_flags &
 895                      ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
 896                        EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
 897                        EF4_FILTER_MATCH_IP_PROTO))) {
 898                 rule->flow_type = IPV4_USER_FLOW;
 899                 uip_entry->ip_ver = ETH_RX_NFC_IP4;
 900                 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
 901                         uip_mask->proto = IP_PROTO_FULL_MASK;
 902                         uip_entry->proto = spec.ip_proto;
 903                 }
 904                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
 905                         uip_entry->ip4dst = spec.loc_host[0];
 906                         uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
 907                 }
 908                 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
 909                         uip_entry->ip4src = spec.rem_host[0];
 910                         uip_mask->ip4src = IP4_ADDR_FULL_MASK;
 911                 }
 912         } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
 913                    spec.ether_type == htons(ETH_P_IPV6) &&
 914                    !(spec.match_flags &
 915                      ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
 916                        EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
 917                        EF4_FILTER_MATCH_IP_PROTO))) {
 918                 rule->flow_type = IPV6_USER_FLOW;
 919                 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
 920                         uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
 921                         uip6_entry->l4_proto = spec.ip_proto;
 922                 }
 923                 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
 924                         memcpy(uip6_entry->ip6dst, spec.loc_host,
 925                                sizeof(uip6_entry->ip6dst));
 926                         ip6_fill_mask(uip6_mask->ip6dst);
 927                 }
 928                 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
 929                         memcpy(uip6_entry->ip6src, spec.rem_host,
 930                                sizeof(uip6_entry->ip6src));
 931                         ip6_fill_mask(uip6_mask->ip6src);
 932                 }
 933         } else {
 934                 /* The above should handle all filters that we insert */
 935                 WARN_ON(1);
 936                 return -EINVAL;
 937         }
 938
 939         if (spec.match_flags & EF4_FILTER_MATCH_OUTER_VID) {
 940                 rule->flow_type |= FLOW_EXT;
 941                 rule->h_ext.vlan_tci = spec.outer_vid;
 942                 rule->m_ext.vlan_tci = htons(0xfff);
 943         }
 944
 945         return rc;
 946 }
 947
 948 static int
 949 ef4_ethtool_get_rxnfc(struct net_device *net_dev,
 950                       struct ethtool_rxnfc *info, u32 *rule_locs)
 951 {
 952         struct ef4_nic *efx = netdev_priv(net_dev);
 953
 954         switch (info->cmd) {
 955         case ETHTOOL_GRXRINGS:
 956                 info->data = efx->n_rx_channels;
 957                 return 0;
 958
 959         case ETHTOOL_GRXFH: {
 960                 unsigned min_revision = 0;
 961
 962                 info->data = 0;
 963                 switch (info->flow_type) {
 964                 case TCP_V4_FLOW:
 965                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 966                 case UDP_V4_FLOW:
 967                 case SCTP_V4_FLOW:
 968                 case AH_ESP_V4_FLOW:
 969                 case IPV4_FLOW:
 970                         info->data |= RXH_IP_SRC | RXH_IP_DST;
 971                         min_revision = EF4_REV_FALCON_B0;
 972                         break;
 973                 default:
 974                         break;
 975                 }
 976                 if (ef4_nic_rev(efx) < min_revision)
 977                         info->data = 0;
 978                 return 0;
 979         }
 980
 981         case ETHTOOL_GRXCLSRLCNT:
 982                 info->data = ef4_filter_get_rx_id_limit(efx);
 983                 if (info->data == 0)
 984                         return -EOPNOTSUPP;
 985                 info->data |= RX_CLS_LOC_SPECIAL;
 986                 info->rule_cnt =
 987                         ef4_filter_count_rx_used(efx, EF4_FILTER_PRI_MANUAL);
 988                 return 0;
 989
 990         case ETHTOOL_GRXCLSRULE:
 991                 if (ef4_filter_get_rx_id_limit(efx) == 0)
 992                         return -EOPNOTSUPP;
 993                 return ef4_ethtool_get_class_rule(efx, &info->fs);
 994
 995         case ETHTOOL_GRXCLSRLALL: {
 996                 s32 rc;
 997                 info->data = ef4_filter_get_rx_id_limit(efx);
 998                 if (info->data == 0)
 999                         return -EOPNOTSUPP;
1000                 rc = ef4_filter_get_rx_ids(efx, EF4_FILTER_PRI_MANUAL,
1001                                            rule_locs, info->rule_cnt);
1002                 if (rc < 0)
1003                         return rc;
1004                 info->rule_cnt = rc;
1005                 return 0;
1006         }
1007
1008         default:
1009                 return -EOPNOTSUPP;
1010         }
1011 }
1012
1013 static inline bool ip6_mask_is_full(__be32 mask[4])
1014 {
1015         return !~(mask[0] & mask[1] & mask[2] & mask[3]);
1016 }
1017
1018 static inline bool ip6_mask_is_empty(__be32 mask[4])
1019 {
1020         return !(mask[0] | mask[1] | mask[2] | mask[3]);
1021 }
1022
1023 static int ef4_ethtool_set_class_rule(struct ef4_nic *efx,
1024                                       struct ethtool_rx_flow_spec *rule)
1025 {
1026         struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
1027         struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
1028         struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
1029         struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
1030         struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
1031         struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
1032         struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
1033         struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
1034         struct ethhdr *mac_entry = &rule->h_u.ether_spec;
1035         struct ethhdr *mac_mask = &rule->m_u.ether_spec;
1036         struct ef4_filter_spec spec;
1037         int rc;
1038
1039         /* Check that user wants us to choose the location */
1040         if (rule->location != RX_CLS_LOC_ANY)
1041                 return -EINVAL;
1042
1043         /* Range-check ring_cookie */
1044         if (rule->ring_cookie >= efx->n_rx_channels &&
1045             rule->ring_cookie != RX_CLS_FLOW_DISC)
1046                 return -EINVAL;
1047
1048         /* Check for unsupported extensions */
1049         if ((rule->flow_type & FLOW_EXT) &&
1050             (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
1051              rule->m_ext.data[1]))
1052                 return -EINVAL;
1053
1054         ef4_filter_init_rx(&spec, EF4_FILTER_PRI_MANUAL,
1055                            efx->rx_scatter ? EF4_FILTER_FLAG_RX_SCATTER : 0,
1056                            (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
1057                            EF4_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
1058
1059         switch (rule->flow_type & ~FLOW_EXT) {
1060         case TCP_V4_FLOW:
1061         case UDP_V4_FLOW:
1062                 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1063                                     EF4_FILTER_MATCH_IP_PROTO);
1064                 spec.ether_type = htons(ETH_P_IP);
1065                 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
1066                                  IPPROTO_TCP : IPPROTO_UDP);
1067                 if (ip_mask->ip4dst) {
1068                         if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1069                                 return -EINVAL;
1070                         spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1071                         spec.loc_host[0] = ip_entry->ip4dst;
1072                 }
1073                 if (ip_mask->ip4src) {
1074                         if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
1075                                 return -EINVAL;
1076                         spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1077                         spec.rem_host[0] = ip_entry->ip4src;
1078                 }
1079                 if (ip_mask->pdst) {
1080                         if (ip_mask->pdst != PORT_FULL_MASK)
1081                                 return -EINVAL;
1082                         spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1083                         spec.loc_port = ip_entry->pdst;
1084                 }
1085                 if (ip_mask->psrc) {
1086                         if (ip_mask->psrc != PORT_FULL_MASK)
1087                                 return -EINVAL;
1088                         spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1089                         spec.rem_port = ip_entry->psrc;
1090                 }
1091                 if (ip_mask->tos)
1092                         return -EINVAL;
1093                 break;
1094
1095         case TCP_V6_FLOW:
1096         case UDP_V6_FLOW:
1097                 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1098                                     EF4_FILTER_MATCH_IP_PROTO);
1099                 spec.ether_type = htons(ETH_P_IPV6);
1100                 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ?
1101                                  IPPROTO_TCP : IPPROTO_UDP);
1102                 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1103                         if (!ip6_mask_is_full(ip6_mask->ip6dst))
1104                                 return -EINVAL;
1105                         spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1106                         memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1107                 }
1108                 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1109                         if (!ip6_mask_is_full(ip6_mask->ip6src))
1110                                 return -EINVAL;
1111                         spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1112                         memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1113                 }
1114                 if (ip6_mask->pdst) {
1115                         if (ip6_mask->pdst != PORT_FULL_MASK)
1116                                 return -EINVAL;
1117                         spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1118                         spec.loc_port = ip6_entry->pdst;
1119                 }
1120                 if (ip6_mask->psrc) {
1121                         if (ip6_mask->psrc != PORT_FULL_MASK)
1122                                 return -EINVAL;
1123                         spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1124                         spec.rem_port = ip6_entry->psrc;
1125                 }
1126                 if (ip6_mask->tclass)
1127                         return -EINVAL;
1128                 break;
1129
1130         case IPV4_USER_FLOW:
1131                 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1132                     uip_entry->ip_ver != ETH_RX_NFC_IP4)
1133                         return -EINVAL;
1134                 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1135                 spec.ether_type = htons(ETH_P_IP);
1136                 if (uip_mask->ip4dst) {
1137                         if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1138                                 return -EINVAL;
1139                         spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1140                         spec.loc_host[0] = uip_entry->ip4dst;
1141                 }
1142                 if (uip_mask->ip4src) {
1143                         if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1144                                 return -EINVAL;
1145                         spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1146                         spec.rem_host[0] = uip_entry->ip4src;
1147                 }
1148                 if (uip_mask->proto) {
1149                         if (uip_mask->proto != IP_PROTO_FULL_MASK)
1150                                 return -EINVAL;
1151                         spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1152                         spec.ip_proto = uip_entry->proto;
1153                 }
1154                 break;
1155
1156         case IPV6_USER_FLOW:
1157                 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1158                         return -EINVAL;
1159                 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1160                 spec.ether_type = htons(ETH_P_IPV6);
1161                 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1162                         if (!ip6_mask_is_full(uip6_mask->ip6dst))
1163                                 return -EINVAL;
1164                         spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1165                         memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1166                 }
1167                 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1168                         if (!ip6_mask_is_full(uip6_mask->ip6src))
1169                                 return -EINVAL;
1170                         spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1171                         memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1172                 }
1173                 if (uip6_mask->l4_proto) {
1174                         if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1175                                 return -EINVAL;
1176                         spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1177                         spec.ip_proto = uip6_entry->l4_proto;
1178                 }
1179                 break;
1180
1181         case ETHER_FLOW:
1182                 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1183                         if (ether_addr_equal(mac_mask->h_dest,
1184                                              mac_addr_ig_mask))
1185                                 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC_IG;
1186                         else if (is_broadcast_ether_addr(mac_mask->h_dest))
1187                                 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC;
1188                         else
1189                                 return -EINVAL;
1190                         ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1191                 }
1192                 if (!is_zero_ether_addr(mac_mask->h_source)) {
1193                         if (!is_broadcast_ether_addr(mac_mask->h_source))
1194                                 return -EINVAL;
1195                         spec.match_flags |= EF4_FILTER_MATCH_REM_MAC;
1196                         ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1197                 }
1198                 if (mac_mask->h_proto) {
1199                         if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1200                                 return -EINVAL;
1201                         spec.match_flags |= EF4_FILTER_MATCH_ETHER_TYPE;
1202                         spec.ether_type = mac_entry->h_proto;
1203                 }
1204                 break;
1205
1206         default:
1207                 return -EINVAL;
1208         }
1209
1210         if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1211                 if (rule->m_ext.vlan_tci != htons(0xfff))
1212                         return -EINVAL;
1213                 spec.match_flags |= EF4_FILTER_MATCH_OUTER_VID;
1214                 spec.outer_vid = rule->h_ext.vlan_tci;
1215         }
1216
1217         rc = ef4_filter_insert_filter(efx, &spec, true);
1218         if (rc < 0)
1219                 return rc;
1220
1221         rule->location = rc;
1222         return 0;
1223 }
1224
1225 static int ef4_ethtool_set_rxnfc(struct net_device *net_dev,
1226                                  struct ethtool_rxnfc *info)
1227 {
1228         struct ef4_nic *efx = netdev_priv(net_dev);
1229
1230         if (ef4_filter_get_rx_id_limit(efx) == 0)
1231                 return -EOPNOTSUPP;
1232
1233         switch (info->cmd) {
1234         case ETHTOOL_SRXCLSRLINS:
1235                 return ef4_ethtool_set_class_rule(efx, &info->fs);
1236
1237         case ETHTOOL_SRXCLSRLDEL:
1238                 return ef4_filter_remove_id_safe(efx, EF4_FILTER_PRI_MANUAL,
1239                                                  info->fs.location);
1240
1241         default:
1242                 return -EOPNOTSUPP;
1243         }
1244 }
1245
1246 static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1247 {
1248         struct ef4_nic *efx = netdev_priv(net_dev);
1249
1250         return ((ef4_nic_rev(efx) < EF4_REV_FALCON_B0 ||
1251                  efx->n_rx_channels == 1) ?
1252                 0 : ARRAY_SIZE(efx->rx_indir_table));
1253 }
1254
1255 static int ef4_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1256                                 u8 *hfunc)
1257 {
1258         struct ef4_nic *efx = netdev_priv(net_dev);
1259
1260         if (hfunc)
1261                 *hfunc = ETH_RSS_HASH_TOP;
1262         if (indir)
1263                 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
1264         return 0;
1265 }
1266
1267 static int ef4_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1268                                 const u8 *key, const u8 hfunc)
1269 {
1270         struct ef4_nic *efx = netdev_priv(net_dev);
1271
1272         /* We do not allow change in unsupported parameters */
1273         if (key ||
1274             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1275                 return -EOPNOTSUPP;
1276         if (!indir)
1277                 return 0;
1278
1279         return efx->type->rx_push_rss_config(efx, true, indir);
1280 }
1281
1282 static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev,
1283                                          struct ethtool_eeprom *ee,
1284                                          u8 *data)
1285 {
1286         struct ef4_nic *efx = netdev_priv(net_dev);
1287         int ret;
1288
1289         if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
1290                 return -EOPNOTSUPP;
1291
1292         mutex_lock(&efx->mac_lock);
1293         ret = efx->phy_op->get_module_eeprom(efx, ee, data);
1294         mutex_unlock(&efx->mac_lock);
1295
1296         return ret;
1297 }
1298
1299 static int ef4_ethtool_get_module_info(struct net_device *net_dev,
1300                                        struct ethtool_modinfo *modinfo)
1301 {
1302         struct ef4_nic *efx = netdev_priv(net_dev);
1303         int ret;
1304
1305         if (!efx->phy_op || !efx->phy_op->get_module_info)
1306                 return -EOPNOTSUPP;
1307
1308         mutex_lock(&efx->mac_lock);
1309         ret = efx->phy_op->get_module_info(efx, modinfo);
1310         mutex_unlock(&efx->mac_lock);
1311
1312         return ret;
1313 }
1314
1315 const struct ethtool_ops ef4_ethtool_ops = {
1316         .get_drvinfo            = ef4_ethtool_get_drvinfo,
1317         .get_regs_len           = ef4_ethtool_get_regs_len,
1318         .get_regs               = ef4_ethtool_get_regs,
1319         .get_msglevel           = ef4_ethtool_get_msglevel,
1320         .set_msglevel           = ef4_ethtool_set_msglevel,
1321         .nway_reset             = ef4_ethtool_nway_reset,
1322         .get_link               = ethtool_op_get_link,
1323         .get_coalesce           = ef4_ethtool_get_coalesce,
1324         .set_coalesce           = ef4_ethtool_set_coalesce,
1325         .get_ringparam          = ef4_ethtool_get_ringparam,
1326         .set_ringparam          = ef4_ethtool_set_ringparam,
1327         .get_pauseparam         = ef4_ethtool_get_pauseparam,
1328         .set_pauseparam         = ef4_ethtool_set_pauseparam,
1329         .get_sset_count         = ef4_ethtool_get_sset_count,
1330         .self_test              = ef4_ethtool_self_test,
1331         .get_strings            = ef4_ethtool_get_strings,
1332         .set_phys_id            = ef4_ethtool_phys_id,
1333         .get_ethtool_stats      = ef4_ethtool_get_stats,
1334         .get_wol                = ef4_ethtool_get_wol,
1335         .set_wol                = ef4_ethtool_set_wol,
1336         .reset                  = ef4_ethtool_reset,
1337         .get_rxnfc              = ef4_ethtool_get_rxnfc,
1338         .set_rxnfc              = ef4_ethtool_set_rxnfc,
1339         .get_rxfh_indir_size    = ef4_ethtool_get_rxfh_indir_size,
1340         .get_rxfh               = ef4_ethtool_get_rxfh,
1341         .set_rxfh               = ef4_ethtool_set_rxfh,
1342         .get_module_info        = ef4_ethtool_get_module_info,
1343         .get_module_eeprom      = ef4_ethtool_get_module_eeprom,
1344         .get_link_ksettings     = ef4_ethtool_get_link_ksettings,
1345         .set_link_ksettings     = ef4_ethtool_set_link_ksettings,
1346 };