drivers/net/sfc/ethtool.c

   1 /****************************************************************************
   2  * Driver for Solarflare Solarstorm network controllers and boards
   3  * Copyright 2005-2006 Fen Systems Ltd.
   4  * Copyright 2006-2008 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 "net_driver.h"
  15 #include "selftest.h"
  16 #include "efx.h"
  17 #include "ethtool.h"
  18 #include "falcon.h"
  19 #include "gmii.h"
  20 #include "spi.h"
  21 #include "mac.h"
  22
  23 const char *efx_loopback_mode_names[] = {
  24         [LOOPBACK_NONE]         = "NONE",
  25         [LOOPBACK_MAC]          = "MAC",
  26         [LOOPBACK_XGMII]        = "XGMII",
  27         [LOOPBACK_XGXS]         = "XGXS",
  28         [LOOPBACK_XAUI]         = "XAUI",
  29         [LOOPBACK_PHY]          = "PHY",
  30         [LOOPBACK_PHYXS]        = "PHYXS",
  31         [LOOPBACK_PCS]          = "PCS",
  32         [LOOPBACK_PMAPMD]       = "PMA/PMD",
  33         [LOOPBACK_NETWORK]      = "NETWORK",
  34 };
  35
  36 struct ethtool_string {
  37         char name[ETH_GSTRING_LEN];
  38 };
  39
  40 struct efx_ethtool_stat {
  41         const char *name;
  42         enum {
  43                 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
  44                 EFX_ETHTOOL_STAT_SOURCE_nic,
  45                 EFX_ETHTOOL_STAT_SOURCE_channel
  46         } source;
  47         unsigned offset;
  48         u64(*get_stat) (void *field); /* Reader function */
  49 };
  50
  51 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
  52 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
  53                                 get_stat_function) {                    \
  54         .name = #stat_name,                                             \
  55         .source = EFX_ETHTOOL_STAT_SOURCE_##source_name,                \
  56         .offset = ((((field_type *) 0) ==                               \
  57                       &((struct efx_##source_name *)0)->field) ?        \
  58                     offsetof(struct efx_##source_name, field) :         \
  59                     offsetof(struct efx_##source_name, field)),         \
  60         .get_stat = get_stat_function,                                  \
  61 }
  62
  63 static u64 efx_get_uint_stat(void *field)
  64 {
  65         return *(unsigned int *)field;
  66 }
  67
  68 static u64 efx_get_ulong_stat(void *field)
  69 {
  70         return *(unsigned long *)field;
  71 }
  72
  73 static u64 efx_get_u64_stat(void *field)
  74 {
  75         return *(u64 *) field;
  76 }
  77
  78 static u64 efx_get_atomic_stat(void *field)
  79 {
  80         return atomic_read((atomic_t *) field);
  81 }
  82
  83 #define EFX_ETHTOOL_ULONG_MAC_STAT(field)                       \
  84         EFX_ETHTOOL_STAT(field, mac_stats, field,               \
  85                           unsigned long, efx_get_ulong_stat)
  86
  87 #define EFX_ETHTOOL_U64_MAC_STAT(field)                         \
  88         EFX_ETHTOOL_STAT(field, mac_stats, field,               \
  89                           u64, efx_get_u64_stat)
  90
  91 #define EFX_ETHTOOL_UINT_NIC_STAT(name)                         \
  92         EFX_ETHTOOL_STAT(name, nic, n_##name,                   \
  93                          unsigned int, efx_get_uint_stat)
  94
  95 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)                \
  96         EFX_ETHTOOL_STAT(field, nic, field,                     \
  97                          atomic_t, efx_get_atomic_stat)
  98
  99 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field)                    \
 100         EFX_ETHTOOL_STAT(field, channel, n_##field,             \
 101                          unsigned int, efx_get_uint_stat)
 102
 103 static struct efx_ethtool_stat efx_ethtool_stats[] = {
 104         EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
 105         EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
 106         EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
 107         EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
 108         EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
 109         EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
 110         EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
 111         EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
 112         EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
 113         EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
 114         EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
 115         EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
 116         EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
 117         EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
 118         EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
 119         EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
 120         EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
 121         EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
 122         EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
 123         EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
 124         EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
 125         EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
 126         EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
 127         EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
 128         EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
 129         EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
 130         EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
 131         EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
 132         EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
 133         EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
 134         EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
 135         EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
 136         EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
 137         EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
 138         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
 139         EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
 140         EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
 141         EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
 142         EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
 143         EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
 144         EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
 145         EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
 146         EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
 147         EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
 148         EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
 149         EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
 150         EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
 151         EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
 152         EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
 153         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
 154         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
 155         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
 156         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
 157         EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
 158         EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
 159         EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
 160         EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
 161         EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
 162         EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
 163         EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
 164         EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
 165         EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
 166         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
 167         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
 168         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
 169         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
 170 };
 171
 172 /* Number of ethtool statistics */
 173 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
 174
 175 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
 176
 177 /**************************************************************************
 178  *
 179  * Ethtool operations
 180  *
 181  **************************************************************************
 182  */
 183
 184 /* Identify device by flashing LEDs */
 185 static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
 186 {
 187         struct efx_nic *efx = netdev_priv(net_dev);
 188
 189         efx->board_info.blink(efx, 1);
 190         set_current_state(TASK_INTERRUPTIBLE);
 191         if (count)
 192                 schedule_timeout(count * HZ);
 193         else
 194                 schedule();
 195         efx->board_info.blink(efx, 0);
 196         return 0;
 197 }
 198
 199 /* This must be called with rtnl_lock held. */
 200 int efx_ethtool_get_settings(struct net_device *net_dev,
 201                              struct ethtool_cmd *ecmd)
 202 {
 203         struct efx_nic *efx = netdev_priv(net_dev);
 204         int rc;
 205
 206         mutex_lock(&efx->mac_lock);
 207         rc = falcon_xmac_get_settings(efx, ecmd);
 208         mutex_unlock(&efx->mac_lock);
 209
 210         return rc;
 211 }
 212
 213 /* This must be called with rtnl_lock held. */
 214 int efx_ethtool_set_settings(struct net_device *net_dev,
 215                              struct ethtool_cmd *ecmd)
 216 {
 217         struct efx_nic *efx = netdev_priv(net_dev);
 218         int rc;
 219
 220         mutex_lock(&efx->mac_lock);
 221         rc = falcon_xmac_set_settings(efx, ecmd);
 222         mutex_unlock(&efx->mac_lock);
 223         if (!rc)
 224                 efx_reconfigure_port(efx);
 225
 226         return rc;
 227 }
 228
 229 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
 230                                     struct ethtool_drvinfo *info)
 231 {
 232         struct efx_nic *efx = netdev_priv(net_dev);
 233
 234         strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
 235         strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
 236         strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
 237 }
 238
 239 /**
 240  * efx_fill_test - fill in an individual self-test entry
 241  * @test_index:         Index of the test
 242  * @strings:            Ethtool strings, or %NULL
 243  * @data:               Ethtool test results, or %NULL
 244  * @test:               Pointer to test result (used only if data != %NULL)
 245  * @unit_format:        Unit name format (e.g. "chan\%d")
 246  * @unit_id:            Unit id (e.g. 0 for "chan0")
 247  * @test_format:        Test name format (e.g. "loopback.\%s.tx.sent")
 248  * @test_id:            Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
 249  *
 250  * Fill in an individual self-test entry.
 251  */
 252 static void efx_fill_test(unsigned int test_index,
 253                           struct ethtool_string *strings, u64 *data,
 254                           int *test, const char *unit_format, int unit_id,
 255                           const char *test_format, const char *test_id)
 256 {
 257         struct ethtool_string unit_str, test_str;
 258
 259         /* Fill data value, if applicable */
 260         if (data)
 261                 data[test_index] = *test;
 262
 263         /* Fill string, if applicable */
 264         if (strings) {
 265                 snprintf(unit_str.name, sizeof(unit_str.name),
 266                          unit_format, unit_id);
 267                 snprintf(test_str.name, sizeof(test_str.name),
 268                          test_format, test_id);
 269                 snprintf(strings[test_index].name,
 270                          sizeof(strings[test_index].name),
 271                          "%-6s %-24s", unit_str.name, test_str.name);
 272         }
 273 }
 274
 275 #define EFX_PORT_NAME "port%d", 0
 276 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
 277 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
 278 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
 279 #define EFX_LOOPBACK_NAME(_mode, _counter)                      \
 280         "loopback.%s." _counter, LOOPBACK_MODE_NAME(mode)
 281
 282 /**
 283  * efx_fill_loopback_test - fill in a block of loopback self-test entries
 284  * @efx:                Efx NIC
 285  * @lb_tests:           Efx loopback self-test results structure
 286  * @mode:               Loopback test mode
 287  * @test_index:         Starting index of the test
 288  * @strings:            Ethtool strings, or %NULL
 289  * @data:               Ethtool test results, or %NULL
 290  */
 291 static int efx_fill_loopback_test(struct efx_nic *efx,
 292                                   struct efx_loopback_self_tests *lb_tests,
 293                                   enum efx_loopback_mode mode,
 294                                   unsigned int test_index,
 295                                   struct ethtool_string *strings, u64 *data)
 296 {
 297         struct efx_tx_queue *tx_queue;
 298
 299         efx_for_each_tx_queue(tx_queue, efx) {
 300                 efx_fill_test(test_index++, strings, data,
 301                               &lb_tests->tx_sent[tx_queue->queue],
 302                               EFX_TX_QUEUE_NAME(tx_queue),
 303                               EFX_LOOPBACK_NAME(mode, "tx_sent"));
 304                 efx_fill_test(test_index++, strings, data,
 305                               &lb_tests->tx_done[tx_queue->queue],
 306                               EFX_TX_QUEUE_NAME(tx_queue),
 307                               EFX_LOOPBACK_NAME(mode, "tx_done"));
 308         }
 309         efx_fill_test(test_index++, strings, data,
 310                       &lb_tests->rx_good,
 311                       EFX_PORT_NAME,
 312                       EFX_LOOPBACK_NAME(mode, "rx_good"));
 313         efx_fill_test(test_index++, strings, data,
 314                       &lb_tests->rx_bad,
 315                       EFX_PORT_NAME,
 316                       EFX_LOOPBACK_NAME(mode, "rx_bad"));
 317
 318         return test_index;
 319 }
 320
 321 /**
 322  * efx_ethtool_fill_self_tests - get self-test details
 323  * @efx:                Efx NIC
 324  * @tests:              Efx self-test results structure, or %NULL
 325  * @strings:            Ethtool strings, or %NULL
 326  * @data:               Ethtool test results, or %NULL
 327  */
 328 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
 329                                        struct efx_self_tests *tests,
 330                                        struct ethtool_string *strings,
 331                                        u64 *data)
 332 {
 333         struct efx_channel *channel;
 334         unsigned int n = 0;
 335         enum efx_loopback_mode mode;
 336
 337         efx_fill_test(n++, strings, data, &tests->mii,
 338                       "core", 0, "mii", NULL);
 339         efx_fill_test(n++, strings, data, &tests->nvram,
 340                       "core", 0, "nvram", NULL);
 341         efx_fill_test(n++, strings, data, &tests->interrupt,
 342                       "core", 0, "interrupt", NULL);
 343
 344         /* Event queues */
 345         efx_for_each_channel(channel, efx) {
 346                 efx_fill_test(n++, strings, data,
 347                               &tests->eventq_dma[channel->channel],
 348                               EFX_CHANNEL_NAME(channel),
 349                               "eventq.dma", NULL);
 350                 efx_fill_test(n++, strings, data,
 351                               &tests->eventq_int[channel->channel],
 352                               EFX_CHANNEL_NAME(channel),
 353                               "eventq.int", NULL);
 354                 efx_fill_test(n++, strings, data,
 355                               &tests->eventq_poll[channel->channel],
 356                               EFX_CHANNEL_NAME(channel),
 357                               "eventq.poll", NULL);
 358         }
 359
 360         efx_fill_test(n++, strings, data, &tests->registers,
 361                       "core", 0, "registers", NULL);
 362         efx_fill_test(n++, strings, data, &tests->phy,
 363                       EFX_PORT_NAME, "phy", NULL);
 364
 365         /* Loopback tests */
 366         efx_fill_test(n++, strings, data, &tests->loopback_speed,
 367                       EFX_PORT_NAME, "loopback.speed", NULL);
 368         efx_fill_test(n++, strings, data, &tests->loopback_full_duplex,
 369                       EFX_PORT_NAME, "loopback.full_duplex", NULL);
 370         for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
 371                 if (!(efx->loopback_modes & (1 << mode)))
 372                         continue;
 373                 n = efx_fill_loopback_test(efx,
 374                                            &tests->loopback[mode], mode, n,
 375                                            strings, data);
 376         }
 377
 378         return n;
 379 }
 380
 381 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
 382                                       int string_set)
 383 {
 384         switch (string_set) {
 385         case ETH_SS_STATS:
 386                 return EFX_ETHTOOL_NUM_STATS;
 387         case ETH_SS_TEST:
 388                 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
 389                                                    NULL, NULL, NULL);
 390         default:
 391                 return -EINVAL;
 392         }
 393 }
 394
 395 static void efx_ethtool_get_strings(struct net_device *net_dev,
 396                                     u32 string_set, u8 *strings)
 397 {
 398         struct efx_nic *efx = netdev_priv(net_dev);
 399         struct ethtool_string *ethtool_strings =
 400                 (struct ethtool_string *)strings;
 401         int i;
 402
 403         switch (string_set) {
 404         case ETH_SS_STATS:
 405                 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
 406                         strncpy(ethtool_strings[i].name,
 407                                 efx_ethtool_stats[i].name,
 408                                 sizeof(ethtool_strings[i].name));
 409                 break;
 410         case ETH_SS_TEST:
 411                 efx_ethtool_fill_self_tests(efx, NULL,
 412                                             ethtool_strings, NULL);
 413                 break;
 414         default:
 415                 /* No other string sets */
 416                 break;
 417         }
 418 }
 419
 420 static void efx_ethtool_get_stats(struct net_device *net_dev,
 421                                   struct ethtool_stats *stats,
 422                                   u64 *data)
 423 {
 424         struct efx_nic *efx = netdev_priv(net_dev);
 425         struct efx_mac_stats *mac_stats = &efx->mac_stats;
 426         struct efx_ethtool_stat *stat;
 427         struct efx_channel *channel;
 428         int i;
 429
 430         EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
 431
 432         /* Update MAC and NIC statistics */
 433         dev_get_stats(net_dev);
 434
 435         /* Fill detailed statistics buffer */
 436         for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
 437                 stat = &efx_ethtool_stats[i];
 438                 switch (stat->source) {
 439                 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
 440                         data[i] = stat->get_stat((void *)mac_stats +
 441                                                  stat->offset);
 442                         break;
 443                 case EFX_ETHTOOL_STAT_SOURCE_nic:
 444                         data[i] = stat->get_stat((void *)efx + stat->offset);
 445                         break;
 446                 case EFX_ETHTOOL_STAT_SOURCE_channel:
 447                         data[i] = 0;
 448                         efx_for_each_channel(channel, efx)
 449                                 data[i] += stat->get_stat((void *)channel +
 450                                                           stat->offset);
 451                         break;
 452                 }
 453         }
 454 }
 455
 456 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
 457 {
 458         struct efx_nic *efx = netdev_priv(net_dev);
 459
 460         /* No way to stop the hardware doing the checks; we just
 461          * ignore the result.
 462          */
 463         efx->rx_checksum_enabled = !!enable;
 464
 465         return 0;
 466 }
 467
 468 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
 469 {
 470         struct efx_nic *efx = netdev_priv(net_dev);
 471
 472         return efx->rx_checksum_enabled;
 473 }
 474
 475 static void efx_ethtool_self_test(struct net_device *net_dev,
 476                                   struct ethtool_test *test, u64 *data)
 477 {
 478         struct efx_nic *efx = netdev_priv(net_dev);
 479         struct efx_self_tests efx_tests;
 480         int offline, already_up;
 481         int rc;
 482
 483         ASSERT_RTNL();
 484         if (efx->state != STATE_RUNNING) {
 485                 rc = -EIO;
 486                 goto fail1;
 487         }
 488
 489         /* We need rx buffers and interrupts. */
 490         already_up = (efx->net_dev->flags & IFF_UP);
 491         if (!already_up) {
 492                 rc = dev_open(efx->net_dev);
 493                 if (rc) {
 494                         EFX_ERR(efx, "failed opening device.\n");
 495                         goto fail2;
 496                 }
 497         }
 498
 499         memset(&efx_tests, 0, sizeof(efx_tests));
 500         offline = (test->flags & ETH_TEST_FL_OFFLINE);
 501
 502         /* Perform online self tests first */
 503         rc = efx_online_test(efx, &efx_tests);
 504         if (rc)
 505                 goto out;
 506
 507         /* Perform offline tests only if online tests passed */
 508         if (offline)
 509                 rc = efx_offline_test(efx, &efx_tests,
 510                                       efx->loopback_modes);
 511
 512  out:
 513         if (!already_up)
 514                 dev_close(efx->net_dev);
 515
 516         EFX_LOG(efx, "%s all %sline self-tests\n",
 517                 rc == 0 ? "passed" : "failed", offline ? "off" : "on");
 518
 519  fail2:
 520  fail1:
 521         /* Fill ethtool results structures */
 522         efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
 523         if (rc)
 524                 test->flags |= ETH_TEST_FL_FAILED;
 525 }
 526
 527 /* Restart autonegotiation */
 528 static int efx_ethtool_nway_reset(struct net_device *net_dev)
 529 {
 530         struct efx_nic *efx = netdev_priv(net_dev);
 531
 532         return mii_nway_restart(&efx->mii);
 533 }
 534
 535 static u32 efx_ethtool_get_link(struct net_device *net_dev)
 536 {
 537         struct efx_nic *efx = netdev_priv(net_dev);
 538
 539         return efx->link_up;
 540 }
 541
 542 static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
 543 {
 544         struct efx_nic *efx = netdev_priv(net_dev);
 545         struct efx_spi_device *spi = efx->spi_eeprom;
 546
 547         if (!spi)
 548                 return 0;
 549         return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
 550                 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
 551 }
 552
 553 static int efx_ethtool_get_eeprom(struct net_device *net_dev,
 554                                   struct ethtool_eeprom *eeprom, u8 *buf)
 555 {
 556         struct efx_nic *efx = netdev_priv(net_dev);
 557         struct efx_spi_device *spi = efx->spi_eeprom;
 558         size_t len;
 559         int rc;
 560
 561         mutex_lock(&efx->spi_lock);
 562         rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
 563                              eeprom->len, &len, buf);
 564         mutex_unlock(&efx->spi_lock);
 565         eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
 566         eeprom->len = len;
 567         return rc;
 568 }
 569
 570 static int efx_ethtool_set_eeprom(struct net_device *net_dev,
 571                                   struct ethtool_eeprom *eeprom, u8 *buf)
 572 {
 573         struct efx_nic *efx = netdev_priv(net_dev);
 574         struct efx_spi_device *spi = efx->spi_eeprom;
 575         size_t len;
 576         int rc;
 577
 578         if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
 579                 return -EINVAL;
 580
 581         mutex_lock(&efx->spi_lock);
 582         rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
 583                               eeprom->len, &len, buf);
 584         mutex_unlock(&efx->spi_lock);
 585         eeprom->len = len;
 586         return rc;
 587 }
 588
 589 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
 590                                     struct ethtool_coalesce *coalesce)
 591 {
 592         struct efx_nic *efx = netdev_priv(net_dev);
 593         struct efx_tx_queue *tx_queue;
 594         struct efx_rx_queue *rx_queue;
 595         struct efx_channel *channel;
 596
 597         memset(coalesce, 0, sizeof(*coalesce));
 598
 599         /* Find lowest IRQ moderation across all used TX queues */
 600         coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
 601         efx_for_each_tx_queue(tx_queue, efx) {
 602                 channel = tx_queue->channel;
 603                 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
 604                         if (channel->used_flags != EFX_USED_BY_RX_TX)
 605                                 coalesce->tx_coalesce_usecs_irq =
 606                                         channel->irq_moderation;
 607                         else
 608                                 coalesce->tx_coalesce_usecs_irq = 0;
 609                 }
 610         }
 611
 612         /* Find lowest IRQ moderation across all used RX queues */
 613         coalesce->rx_coalesce_usecs_irq = ~((u32) 0);
 614         efx_for_each_rx_queue(rx_queue, efx) {
 615                 channel = rx_queue->channel;
 616                 if (channel->irq_moderation < coalesce->rx_coalesce_usecs_irq)
 617                         coalesce->rx_coalesce_usecs_irq =
 618                                 channel->irq_moderation;
 619         }
 620
 621         return 0;
 622 }
 623
 624 /* Set coalescing parameters
 625  * The difficulties occur for shared channels
 626  */
 627 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
 628                                     struct ethtool_coalesce *coalesce)
 629 {
 630         struct efx_nic *efx = netdev_priv(net_dev);
 631         struct efx_channel *channel;
 632         struct efx_tx_queue *tx_queue;
 633         unsigned tx_usecs, rx_usecs;
 634
 635         if (coalesce->use_adaptive_rx_coalesce ||
 636             coalesce->use_adaptive_tx_coalesce)
 637                 return -EOPNOTSUPP;
 638
 639         if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
 640                 EFX_ERR(efx, "invalid coalescing setting. "
 641                         "Only rx/tx_coalesce_usecs_irq are supported\n");
 642                 return -EOPNOTSUPP;
 643         }
 644
 645         rx_usecs = coalesce->rx_coalesce_usecs_irq;
 646         tx_usecs = coalesce->tx_coalesce_usecs_irq;
 647
 648         /* If the channel is shared only allow RX parameters to be set */
 649         efx_for_each_tx_queue(tx_queue, efx) {
 650                 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
 651                     tx_usecs) {
 652                         EFX_ERR(efx, "Channel is shared. "
 653                                 "Only RX coalescing may be set\n");
 654                         return -EOPNOTSUPP;
 655                 }
 656         }
 657
 658         efx_init_irq_moderation(efx, tx_usecs, rx_usecs);
 659
 660         /* Reset channel to pick up new moderation value.  Note that
 661          * this may change the value of the irq_moderation field
 662          * (e.g. to allow for hardware timer granularity).
 663          */
 664         efx_for_each_channel(channel, efx)
 665                 falcon_set_int_moderation(channel);
 666
 667         return 0;
 668 }
 669
 670 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
 671                                       struct ethtool_pauseparam *pause)
 672 {
 673         struct efx_nic *efx = netdev_priv(net_dev);
 674         enum efx_fc_type flow_control = efx->flow_control;
 675         int rc;
 676
 677         flow_control &= ~(EFX_FC_RX | EFX_FC_TX | EFX_FC_AUTO);
 678         flow_control |= pause->rx_pause ? EFX_FC_RX : 0;
 679         flow_control |= pause->tx_pause ? EFX_FC_TX : 0;
 680         flow_control |= pause->autoneg ? EFX_FC_AUTO : 0;
 681
 682         /* Try to push the pause parameters */
 683         mutex_lock(&efx->mac_lock);
 684         rc = falcon_xmac_set_pause(efx, flow_control);
 685         mutex_unlock(&efx->mac_lock);
 686
 687         if (!rc)
 688                 efx_reconfigure_port(efx);
 689
 690         return rc;
 691 }
 692
 693 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
 694                                        struct ethtool_pauseparam *pause)
 695 {
 696         struct efx_nic *efx = netdev_priv(net_dev);
 697
 698         pause->rx_pause = !!(efx->flow_control & EFX_FC_RX);
 699         pause->tx_pause = !!(efx->flow_control & EFX_FC_TX);
 700         pause->autoneg = !!(efx->flow_control & EFX_FC_AUTO);
 701 }
 702
 703
 704 struct ethtool_ops efx_ethtool_ops = {
 705         .get_settings           = efx_ethtool_get_settings,
 706         .set_settings           = efx_ethtool_set_settings,
 707         .get_drvinfo            = efx_ethtool_get_drvinfo,
 708         .nway_reset             = efx_ethtool_nway_reset,
 709         .get_link               = efx_ethtool_get_link,
 710         .get_eeprom_len         = efx_ethtool_get_eeprom_len,
 711         .get_eeprom             = efx_ethtool_get_eeprom,
 712         .set_eeprom             = efx_ethtool_set_eeprom,
 713         .get_coalesce           = efx_ethtool_get_coalesce,
 714         .set_coalesce           = efx_ethtool_set_coalesce,
 715         .get_pauseparam         = efx_ethtool_get_pauseparam,
 716         .set_pauseparam         = efx_ethtool_set_pauseparam,
 717         .get_rx_csum            = efx_ethtool_get_rx_csum,
 718         .set_rx_csum            = efx_ethtool_set_rx_csum,
 719         .get_tx_csum            = ethtool_op_get_tx_csum,
 720         .set_tx_csum            = ethtool_op_set_tx_csum,
 721         .get_sg                 = ethtool_op_get_sg,
 722         .set_sg                 = ethtool_op_set_sg,
 723         .get_tso                = ethtool_op_get_tso,
 724         .set_tso                = ethtool_op_set_tso,
 725         .get_flags              = ethtool_op_get_flags,
 726         .set_flags              = ethtool_op_set_flags,
 727         .get_sset_count         = efx_ethtool_get_sset_count,
 728         .self_test              = efx_ethtool_self_test,
 729         .get_strings            = efx_ethtool_get_strings,
 730         .phys_id                = efx_ethtool_phys_id,
 731         .get_ethtool_stats      = efx_ethtool_get_stats,
 732 };