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