1 /**************************************************************************** 2 * Driver for Solarflare network controllers and boards 3 * Copyright 2005-2006 Fen Systems Ltd. 4 * Copyright 2006-2013 Solarflare Communications Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 as published 8 * by the Free Software Foundation, incorporated herein by reference. 9 */ 10 11 #include <linux/netdevice.h> 12 #include <linux/ethtool.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/in.h> 15 #include "net_driver.h" 16 #include "workarounds.h" 17 #include "selftest.h" 18 #include "efx.h" 19 #include "filter.h" 20 #include "nic.h" 21 22 struct efx_sw_stat_desc { 23 const char *name; 24 enum { 25 EFX_ETHTOOL_STAT_SOURCE_nic, 26 EFX_ETHTOOL_STAT_SOURCE_channel, 27 EFX_ETHTOOL_STAT_SOURCE_tx_queue 28 } source; 29 unsigned offset; 30 u64(*get_stat) (void *field); /* Reader function */ 31 }; 32 33 /* Initialiser for a struct efx_sw_stat_desc with type-checking */ 34 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \ 35 get_stat_function) { \ 36 .name = #stat_name, \ 37 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \ 38 .offset = ((((field_type *) 0) == \ 39 &((struct efx_##source_name *)0)->field) ? \ 40 offsetof(struct efx_##source_name, field) : \ 41 offsetof(struct efx_##source_name, field)), \ 42 .get_stat = get_stat_function, \ 43 } 44 45 static u64 efx_get_uint_stat(void *field) 46 { 47 return *(unsigned int *)field; 48 } 49 50 static u64 efx_get_atomic_stat(void *field) 51 { 52 return atomic_read((atomic_t *) field); 53 } 54 55 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \ 56 EFX_ETHTOOL_STAT(field, nic, field, \ 57 atomic_t, efx_get_atomic_stat) 58 59 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \ 60 EFX_ETHTOOL_STAT(field, channel, n_##field, \ 61 unsigned int, efx_get_uint_stat) 62 63 #define EFX_ETHTOOL_UINT_TXQ_STAT(field) \ 64 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \ 65 unsigned int, efx_get_uint_stat) 66 67 static const struct efx_sw_stat_desc efx_sw_stat_desc[] = { 68 EFX_ETHTOOL_UINT_TXQ_STAT(merge_events), 69 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts), 70 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers), 71 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets), 72 EFX_ETHTOOL_UINT_TXQ_STAT(pushes), 73 EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets), 74 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset), 75 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc), 76 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err), 77 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err), 78 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch), 79 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc), 80 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_nodesc_trunc), 81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events), 82 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets), 83 }; 84 85 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc) 86 87 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB 88 89 /************************************************************************** 90 * 91 * Ethtool operations 92 * 93 ************************************************************************** 94 */ 95 96 /* Identify device by flashing LEDs */ 97 static int efx_ethtool_phys_id(struct net_device *net_dev, 98 enum ethtool_phys_id_state state) 99 { 100 struct efx_nic *efx = netdev_priv(net_dev); 101 enum efx_led_mode mode = EFX_LED_DEFAULT; 102 103 switch (state) { 104 case ETHTOOL_ID_ON: 105 mode = EFX_LED_ON; 106 break; 107 case ETHTOOL_ID_OFF: 108 mode = EFX_LED_OFF; 109 break; 110 case ETHTOOL_ID_INACTIVE: 111 mode = EFX_LED_DEFAULT; 112 break; 113 case ETHTOOL_ID_ACTIVE: 114 return 1; /* cycle on/off once per second */ 115 } 116 117 efx->type->set_id_led(efx, mode); 118 return 0; 119 } 120 121 /* This must be called with rtnl_lock held. */ 122 static int efx_ethtool_get_settings(struct net_device *net_dev, 123 struct ethtool_cmd *ecmd) 124 { 125 struct efx_nic *efx = netdev_priv(net_dev); 126 struct efx_link_state *link_state = &efx->link_state; 127 128 mutex_lock(&efx->mac_lock); 129 efx->phy_op->get_settings(efx, ecmd); 130 mutex_unlock(&efx->mac_lock); 131 132 /* Both MACs support pause frames (bidirectional and respond-only) */ 133 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause; 134 135 if (LOOPBACK_INTERNAL(efx)) { 136 ethtool_cmd_speed_set(ecmd, link_state->speed); 137 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; 138 } 139 140 return 0; 141 } 142 143 /* This must be called with rtnl_lock held. */ 144 static int efx_ethtool_set_settings(struct net_device *net_dev, 145 struct ethtool_cmd *ecmd) 146 { 147 struct efx_nic *efx = netdev_priv(net_dev); 148 int rc; 149 150 /* GMAC does not support 1000Mbps HD */ 151 if ((ethtool_cmd_speed(ecmd) == SPEED_1000) && 152 (ecmd->duplex != DUPLEX_FULL)) { 153 netif_dbg(efx, drv, efx->net_dev, 154 "rejecting unsupported 1000Mbps HD setting\n"); 155 return -EINVAL; 156 } 157 158 mutex_lock(&efx->mac_lock); 159 rc = efx->phy_op->set_settings(efx, ecmd); 160 mutex_unlock(&efx->mac_lock); 161 return rc; 162 } 163 164 static void efx_ethtool_get_drvinfo(struct net_device *net_dev, 165 struct ethtool_drvinfo *info) 166 { 167 struct efx_nic *efx = netdev_priv(net_dev); 168 169 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); 170 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version)); 171 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0) 172 efx_mcdi_print_fwver(efx, info->fw_version, 173 sizeof(info->fw_version)); 174 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info)); 175 } 176 177 static int efx_ethtool_get_regs_len(struct net_device *net_dev) 178 { 179 return efx_nic_get_regs_len(netdev_priv(net_dev)); 180 } 181 182 static void efx_ethtool_get_regs(struct net_device *net_dev, 183 struct ethtool_regs *regs, void *buf) 184 { 185 struct efx_nic *efx = netdev_priv(net_dev); 186 187 regs->version = efx->type->revision; 188 efx_nic_get_regs(efx, buf); 189 } 190 191 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev) 192 { 193 struct efx_nic *efx = netdev_priv(net_dev); 194 return efx->msg_enable; 195 } 196 197 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable) 198 { 199 struct efx_nic *efx = netdev_priv(net_dev); 200 efx->msg_enable = msg_enable; 201 } 202 203 /** 204 * efx_fill_test - fill in an individual self-test entry 205 * @test_index: Index of the test 206 * @strings: Ethtool strings, or %NULL 207 * @data: Ethtool test results, or %NULL 208 * @test: Pointer to test result (used only if data != %NULL) 209 * @unit_format: Unit name format (e.g. "chan\%d") 210 * @unit_id: Unit id (e.g. 0 for "chan0") 211 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent") 212 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent") 213 * 214 * Fill in an individual self-test entry. 215 */ 216 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data, 217 int *test, const char *unit_format, int unit_id, 218 const char *test_format, const char *test_id) 219 { 220 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN]; 221 222 /* Fill data value, if applicable */ 223 if (data) 224 data[test_index] = *test; 225 226 /* Fill string, if applicable */ 227 if (strings) { 228 if (strchr(unit_format, '%')) 229 snprintf(unit_str, sizeof(unit_str), 230 unit_format, unit_id); 231 else 232 strcpy(unit_str, unit_format); 233 snprintf(test_str, sizeof(test_str), test_format, test_id); 234 snprintf(strings + test_index * ETH_GSTRING_LEN, 235 ETH_GSTRING_LEN, 236 "%-6s %-24s", unit_str, test_str); 237 } 238 } 239 240 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel 241 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue 242 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue 243 #define EFX_LOOPBACK_NAME(_mode, _counter) \ 244 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode) 245 246 /** 247 * efx_fill_loopback_test - fill in a block of loopback self-test entries 248 * @efx: Efx NIC 249 * @lb_tests: Efx loopback self-test results structure 250 * @mode: Loopback test mode 251 * @test_index: Starting index of the test 252 * @strings: Ethtool strings, or %NULL 253 * @data: Ethtool test results, or %NULL 254 */ 255 static int efx_fill_loopback_test(struct efx_nic *efx, 256 struct efx_loopback_self_tests *lb_tests, 257 enum efx_loopback_mode mode, 258 unsigned int test_index, 259 u8 *strings, u64 *data) 260 { 261 struct efx_channel *channel = 262 efx_get_channel(efx, efx->tx_channel_offset); 263 struct efx_tx_queue *tx_queue; 264 265 efx_for_each_channel_tx_queue(tx_queue, channel) { 266 efx_fill_test(test_index++, strings, data, 267 &lb_tests->tx_sent[tx_queue->queue], 268 EFX_TX_QUEUE_NAME(tx_queue), 269 EFX_LOOPBACK_NAME(mode, "tx_sent")); 270 efx_fill_test(test_index++, strings, data, 271 &lb_tests->tx_done[tx_queue->queue], 272 EFX_TX_QUEUE_NAME(tx_queue), 273 EFX_LOOPBACK_NAME(mode, "tx_done")); 274 } 275 efx_fill_test(test_index++, strings, data, 276 &lb_tests->rx_good, 277 "rx", 0, 278 EFX_LOOPBACK_NAME(mode, "rx_good")); 279 efx_fill_test(test_index++, strings, data, 280 &lb_tests->rx_bad, 281 "rx", 0, 282 EFX_LOOPBACK_NAME(mode, "rx_bad")); 283 284 return test_index; 285 } 286 287 /** 288 * efx_ethtool_fill_self_tests - get self-test details 289 * @efx: Efx NIC 290 * @tests: Efx self-test results structure, or %NULL 291 * @strings: Ethtool strings, or %NULL 292 * @data: Ethtool test results, or %NULL 293 */ 294 static int efx_ethtool_fill_self_tests(struct efx_nic *efx, 295 struct efx_self_tests *tests, 296 u8 *strings, u64 *data) 297 { 298 struct efx_channel *channel; 299 unsigned int n = 0, i; 300 enum efx_loopback_mode mode; 301 302 efx_fill_test(n++, strings, data, &tests->phy_alive, 303 "phy", 0, "alive", NULL); 304 efx_fill_test(n++, strings, data, &tests->nvram, 305 "core", 0, "nvram", NULL); 306 efx_fill_test(n++, strings, data, &tests->interrupt, 307 "core", 0, "interrupt", NULL); 308 309 /* Event queues */ 310 efx_for_each_channel(channel, efx) { 311 efx_fill_test(n++, strings, data, 312 &tests->eventq_dma[channel->channel], 313 EFX_CHANNEL_NAME(channel), 314 "eventq.dma", NULL); 315 efx_fill_test(n++, strings, data, 316 &tests->eventq_int[channel->channel], 317 EFX_CHANNEL_NAME(channel), 318 "eventq.int", NULL); 319 } 320 321 efx_fill_test(n++, strings, data, &tests->memory, 322 "core", 0, "memory", NULL); 323 efx_fill_test(n++, strings, data, &tests->registers, 324 "core", 0, "registers", NULL); 325 326 if (efx->phy_op->run_tests != NULL) { 327 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL); 328 329 for (i = 0; true; ++i) { 330 const char *name; 331 332 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS); 333 name = efx->phy_op->test_name(efx, i); 334 if (name == NULL) 335 break; 336 337 efx_fill_test(n++, strings, data, &tests->phy_ext[i], 338 "phy", 0, name, NULL); 339 } 340 } 341 342 /* Loopback tests */ 343 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) { 344 if (!(efx->loopback_modes & (1 << mode))) 345 continue; 346 n = efx_fill_loopback_test(efx, 347 &tests->loopback[mode], mode, n, 348 strings, data); 349 } 350 351 return n; 352 } 353 354 static int efx_ethtool_get_sset_count(struct net_device *net_dev, 355 int string_set) 356 { 357 struct efx_nic *efx = netdev_priv(net_dev); 358 359 switch (string_set) { 360 case ETH_SS_STATS: 361 return efx->type->describe_stats(efx, NULL) + 362 EFX_ETHTOOL_SW_STAT_COUNT; 363 case ETH_SS_TEST: 364 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL); 365 default: 366 return -EINVAL; 367 } 368 } 369 370 static void efx_ethtool_get_strings(struct net_device *net_dev, 371 u32 string_set, u8 *strings) 372 { 373 struct efx_nic *efx = netdev_priv(net_dev); 374 int i; 375 376 switch (string_set) { 377 case ETH_SS_STATS: 378 strings += (efx->type->describe_stats(efx, strings) * 379 ETH_GSTRING_LEN); 380 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) 381 strlcpy(strings + i * ETH_GSTRING_LEN, 382 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN); 383 break; 384 case ETH_SS_TEST: 385 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL); 386 break; 387 default: 388 /* No other string sets */ 389 break; 390 } 391 } 392 393 static void efx_ethtool_get_stats(struct net_device *net_dev, 394 struct ethtool_stats *stats, 395 u64 *data) 396 { 397 struct efx_nic *efx = netdev_priv(net_dev); 398 const struct efx_sw_stat_desc *stat; 399 struct efx_channel *channel; 400 struct efx_tx_queue *tx_queue; 401 int i; 402 403 spin_lock_bh(&efx->stats_lock); 404 405 /* Get NIC statistics */ 406 data += efx->type->update_stats(efx, data, NULL); 407 408 /* Get software statistics */ 409 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) { 410 stat = &efx_sw_stat_desc[i]; 411 switch (stat->source) { 412 case EFX_ETHTOOL_STAT_SOURCE_nic: 413 data[i] = stat->get_stat((void *)efx + stat->offset); 414 break; 415 case EFX_ETHTOOL_STAT_SOURCE_channel: 416 data[i] = 0; 417 efx_for_each_channel(channel, efx) 418 data[i] += stat->get_stat((void *)channel + 419 stat->offset); 420 break; 421 case EFX_ETHTOOL_STAT_SOURCE_tx_queue: 422 data[i] = 0; 423 efx_for_each_channel(channel, efx) { 424 efx_for_each_channel_tx_queue(tx_queue, channel) 425 data[i] += 426 stat->get_stat((void *)tx_queue 427 + stat->offset); 428 } 429 break; 430 } 431 } 432 433 spin_unlock_bh(&efx->stats_lock); 434 } 435 436 static void efx_ethtool_self_test(struct net_device *net_dev, 437 struct ethtool_test *test, u64 *data) 438 { 439 struct efx_nic *efx = netdev_priv(net_dev); 440 struct efx_self_tests *efx_tests; 441 int already_up; 442 int rc = -ENOMEM; 443 444 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL); 445 if (!efx_tests) 446 goto fail; 447 448 if (efx->state != STATE_READY) { 449 rc = -EIO; 450 goto fail1; 451 } 452 453 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n", 454 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 455 456 /* We need rx buffers and interrupts. */ 457 already_up = (efx->net_dev->flags & IFF_UP); 458 if (!already_up) { 459 rc = dev_open(efx->net_dev); 460 if (rc) { 461 netif_err(efx, drv, efx->net_dev, 462 "failed opening device.\n"); 463 goto fail1; 464 } 465 } 466 467 rc = efx_selftest(efx, efx_tests, test->flags); 468 469 if (!already_up) 470 dev_close(efx->net_dev); 471 472 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n", 473 rc == 0 ? "passed" : "failed", 474 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 475 476 fail1: 477 /* Fill ethtool results structures */ 478 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data); 479 kfree(efx_tests); 480 fail: 481 if (rc) 482 test->flags |= ETH_TEST_FL_FAILED; 483 } 484 485 /* Restart autonegotiation */ 486 static int efx_ethtool_nway_reset(struct net_device *net_dev) 487 { 488 struct efx_nic *efx = netdev_priv(net_dev); 489 490 return mdio45_nway_restart(&efx->mdio); 491 } 492 493 /* 494 * Each channel has a single IRQ and moderation timer, started by any 495 * completion (or other event). Unless the module parameter 496 * separate_tx_channels is set, IRQs and moderation are therefore 497 * shared between RX and TX completions. In this case, when RX IRQ 498 * moderation is explicitly changed then TX IRQ moderation is 499 * automatically changed too, but otherwise we fail if the two values 500 * are requested to be different. 501 * 502 * The hardware does not support a limit on the number of completions 503 * before an IRQ, so we do not use the max_frames fields. We should 504 * report and require that max_frames == (usecs != 0), but this would 505 * invalidate existing user documentation. 506 * 507 * The hardware does not have distinct settings for interrupt 508 * moderation while the previous IRQ is being handled, so we should 509 * not use the 'irq' fields. However, an earlier developer 510 * misunderstood the meaning of the 'irq' fields and the driver did 511 * not support the standard fields. To avoid invalidating existing 512 * user documentation, we report and accept changes through either the 513 * standard or 'irq' fields. If both are changed at the same time, we 514 * prefer the standard field. 515 * 516 * We implement adaptive IRQ moderation, but use a different algorithm 517 * from that assumed in the definition of struct ethtool_coalesce. 518 * Therefore we do not use any of the adaptive moderation parameters 519 * in it. 520 */ 521 522 static int efx_ethtool_get_coalesce(struct net_device *net_dev, 523 struct ethtool_coalesce *coalesce) 524 { 525 struct efx_nic *efx = netdev_priv(net_dev); 526 unsigned int tx_usecs, rx_usecs; 527 bool rx_adaptive; 528 529 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive); 530 531 coalesce->tx_coalesce_usecs = tx_usecs; 532 coalesce->tx_coalesce_usecs_irq = tx_usecs; 533 coalesce->rx_coalesce_usecs = rx_usecs; 534 coalesce->rx_coalesce_usecs_irq = rx_usecs; 535 coalesce->use_adaptive_rx_coalesce = rx_adaptive; 536 537 return 0; 538 } 539 540 static int efx_ethtool_set_coalesce(struct net_device *net_dev, 541 struct ethtool_coalesce *coalesce) 542 { 543 struct efx_nic *efx = netdev_priv(net_dev); 544 struct efx_channel *channel; 545 unsigned int tx_usecs, rx_usecs; 546 bool adaptive, rx_may_override_tx; 547 int rc; 548 549 if (coalesce->use_adaptive_tx_coalesce) 550 return -EINVAL; 551 552 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive); 553 554 if (coalesce->rx_coalesce_usecs != rx_usecs) 555 rx_usecs = coalesce->rx_coalesce_usecs; 556 else 557 rx_usecs = coalesce->rx_coalesce_usecs_irq; 558 559 adaptive = coalesce->use_adaptive_rx_coalesce; 560 561 /* If channels are shared, TX IRQ moderation can be quietly 562 * overridden unless it is changed from its old value. 563 */ 564 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs && 565 coalesce->tx_coalesce_usecs_irq == tx_usecs); 566 if (coalesce->tx_coalesce_usecs != tx_usecs) 567 tx_usecs = coalesce->tx_coalesce_usecs; 568 else 569 tx_usecs = coalesce->tx_coalesce_usecs_irq; 570 571 rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive, 572 rx_may_override_tx); 573 if (rc != 0) 574 return rc; 575 576 efx_for_each_channel(channel, efx) 577 efx->type->push_irq_moderation(channel); 578 579 return 0; 580 } 581 582 static void efx_ethtool_get_ringparam(struct net_device *net_dev, 583 struct ethtool_ringparam *ring) 584 { 585 struct efx_nic *efx = netdev_priv(net_dev); 586 587 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE; 588 ring->tx_max_pending = EFX_MAX_DMAQ_SIZE; 589 ring->rx_pending = efx->rxq_entries; 590 ring->tx_pending = efx->txq_entries; 591 } 592 593 static int efx_ethtool_set_ringparam(struct net_device *net_dev, 594 struct ethtool_ringparam *ring) 595 { 596 struct efx_nic *efx = netdev_priv(net_dev); 597 u32 txq_entries; 598 599 if (ring->rx_mini_pending || ring->rx_jumbo_pending || 600 ring->rx_pending > EFX_MAX_DMAQ_SIZE || 601 ring->tx_pending > EFX_MAX_DMAQ_SIZE) 602 return -EINVAL; 603 604 if (ring->rx_pending < EFX_RXQ_MIN_ENT) { 605 netif_err(efx, drv, efx->net_dev, 606 "RX queues cannot be smaller than %u\n", 607 EFX_RXQ_MIN_ENT); 608 return -EINVAL; 609 } 610 611 txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx)); 612 if (txq_entries != ring->tx_pending) 613 netif_warn(efx, drv, efx->net_dev, 614 "increasing TX queue size to minimum of %u\n", 615 txq_entries); 616 617 return efx_realloc_channels(efx, ring->rx_pending, txq_entries); 618 } 619 620 static int efx_ethtool_set_pauseparam(struct net_device *net_dev, 621 struct ethtool_pauseparam *pause) 622 { 623 struct efx_nic *efx = netdev_priv(net_dev); 624 u8 wanted_fc, old_fc; 625 u32 old_adv; 626 int rc = 0; 627 628 mutex_lock(&efx->mac_lock); 629 630 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) | 631 (pause->tx_pause ? EFX_FC_TX : 0) | 632 (pause->autoneg ? EFX_FC_AUTO : 0)); 633 634 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) { 635 netif_dbg(efx, drv, efx->net_dev, 636 "Flow control unsupported: tx ON rx OFF\n"); 637 rc = -EINVAL; 638 goto out; 639 } 640 641 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) { 642 netif_dbg(efx, drv, efx->net_dev, 643 "Autonegotiation is disabled\n"); 644 rc = -EINVAL; 645 goto out; 646 } 647 648 /* Hook for Falcon bug 11482 workaround */ 649 if (efx->type->prepare_enable_fc_tx && 650 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX)) 651 efx->type->prepare_enable_fc_tx(efx); 652 653 old_adv = efx->link_advertising; 654 old_fc = efx->wanted_fc; 655 efx_link_set_wanted_fc(efx, wanted_fc); 656 if (efx->link_advertising != old_adv || 657 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) { 658 rc = efx->phy_op->reconfigure(efx); 659 if (rc) { 660 netif_err(efx, drv, efx->net_dev, 661 "Unable to advertise requested flow " 662 "control setting\n"); 663 goto out; 664 } 665 } 666 667 /* Reconfigure the MAC. The PHY *may* generate a link state change event 668 * if the user just changed the advertised capabilities, but there's no 669 * harm doing this twice */ 670 efx->type->reconfigure_mac(efx); 671 672 out: 673 mutex_unlock(&efx->mac_lock); 674 675 return rc; 676 } 677 678 static void efx_ethtool_get_pauseparam(struct net_device *net_dev, 679 struct ethtool_pauseparam *pause) 680 { 681 struct efx_nic *efx = netdev_priv(net_dev); 682 683 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX); 684 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX); 685 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO); 686 } 687 688 689 static void efx_ethtool_get_wol(struct net_device *net_dev, 690 struct ethtool_wolinfo *wol) 691 { 692 struct efx_nic *efx = netdev_priv(net_dev); 693 return efx->type->get_wol(efx, wol); 694 } 695 696 697 static int efx_ethtool_set_wol(struct net_device *net_dev, 698 struct ethtool_wolinfo *wol) 699 { 700 struct efx_nic *efx = netdev_priv(net_dev); 701 return efx->type->set_wol(efx, wol->wolopts); 702 } 703 704 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) 705 { 706 struct efx_nic *efx = netdev_priv(net_dev); 707 int rc; 708 709 rc = efx->type->map_reset_flags(flags); 710 if (rc < 0) 711 return rc; 712 713 return efx_reset(efx, rc); 714 } 715 716 /* MAC address mask including only I/G bit */ 717 static const u8 mac_addr_ig_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 }; 718 719 #define IP4_ADDR_FULL_MASK ((__force __be32)~0) 720 #define PORT_FULL_MASK ((__force __be16)~0) 721 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 722 723 static int efx_ethtool_get_class_rule(struct efx_nic *efx, 724 struct ethtool_rx_flow_spec *rule) 725 { 726 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 727 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 728 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 729 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 730 struct efx_filter_spec spec; 731 int rc; 732 733 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, 734 rule->location, &spec); 735 if (rc) 736 return rc; 737 738 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP) 739 rule->ring_cookie = RX_CLS_FLOW_DISC; 740 else 741 rule->ring_cookie = spec.dmaq_id; 742 743 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 744 spec.ether_type == htons(ETH_P_IP) && 745 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 746 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 747 !(spec.match_flags & 748 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 749 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 750 EFX_FILTER_MATCH_IP_PROTO | 751 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 752 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 753 TCP_V4_FLOW : UDP_V4_FLOW); 754 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 755 ip_entry->ip4dst = spec.loc_host[0]; 756 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 757 } 758 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 759 ip_entry->ip4src = spec.rem_host[0]; 760 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 761 } 762 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 763 ip_entry->pdst = spec.loc_port; 764 ip_mask->pdst = PORT_FULL_MASK; 765 } 766 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 767 ip_entry->psrc = spec.rem_port; 768 ip_mask->psrc = PORT_FULL_MASK; 769 } 770 } else if (!(spec.match_flags & 771 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG | 772 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE | 773 EFX_FILTER_MATCH_OUTER_VID))) { 774 rule->flow_type = ETHER_FLOW; 775 if (spec.match_flags & 776 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) { 777 memcpy(mac_entry->h_dest, spec.loc_mac, ETH_ALEN); 778 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC) 779 memset(mac_mask->h_dest, ~0, ETH_ALEN); 780 else 781 memcpy(mac_mask->h_dest, mac_addr_ig_mask, 782 ETH_ALEN); 783 } 784 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) { 785 memcpy(mac_entry->h_source, spec.rem_mac, ETH_ALEN); 786 memset(mac_mask->h_source, ~0, ETH_ALEN); 787 } 788 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) { 789 mac_entry->h_proto = spec.ether_type; 790 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 791 } 792 } else { 793 /* The above should handle all filters that we insert */ 794 WARN_ON(1); 795 return -EINVAL; 796 } 797 798 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) { 799 rule->flow_type |= FLOW_EXT; 800 rule->h_ext.vlan_tci = spec.outer_vid; 801 rule->m_ext.vlan_tci = htons(0xfff); 802 } 803 804 return rc; 805 } 806 807 static int 808 efx_ethtool_get_rxnfc(struct net_device *net_dev, 809 struct ethtool_rxnfc *info, u32 *rule_locs) 810 { 811 struct efx_nic *efx = netdev_priv(net_dev); 812 813 switch (info->cmd) { 814 case ETHTOOL_GRXRINGS: 815 info->data = efx->n_rx_channels; 816 return 0; 817 818 case ETHTOOL_GRXFH: { 819 unsigned min_revision = 0; 820 821 info->data = 0; 822 switch (info->flow_type) { 823 case TCP_V4_FLOW: 824 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 825 /* fall through */ 826 case UDP_V4_FLOW: 827 case SCTP_V4_FLOW: 828 case AH_ESP_V4_FLOW: 829 case IPV4_FLOW: 830 info->data |= RXH_IP_SRC | RXH_IP_DST; 831 min_revision = EFX_REV_FALCON_B0; 832 break; 833 case TCP_V6_FLOW: 834 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 835 /* fall through */ 836 case UDP_V6_FLOW: 837 case SCTP_V6_FLOW: 838 case AH_ESP_V6_FLOW: 839 case IPV6_FLOW: 840 info->data |= RXH_IP_SRC | RXH_IP_DST; 841 min_revision = EFX_REV_SIENA_A0; 842 break; 843 default: 844 break; 845 } 846 if (efx_nic_rev(efx) < min_revision) 847 info->data = 0; 848 return 0; 849 } 850 851 case ETHTOOL_GRXCLSRLCNT: 852 info->data = efx_filter_get_rx_id_limit(efx); 853 if (info->data == 0) 854 return -EOPNOTSUPP; 855 info->data |= RX_CLS_LOC_SPECIAL; 856 info->rule_cnt = 857 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL); 858 return 0; 859 860 case ETHTOOL_GRXCLSRULE: 861 if (efx_filter_get_rx_id_limit(efx) == 0) 862 return -EOPNOTSUPP; 863 return efx_ethtool_get_class_rule(efx, &info->fs); 864 865 case ETHTOOL_GRXCLSRLALL: { 866 s32 rc; 867 info->data = efx_filter_get_rx_id_limit(efx); 868 if (info->data == 0) 869 return -EOPNOTSUPP; 870 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL, 871 rule_locs, info->rule_cnt); 872 if (rc < 0) 873 return rc; 874 info->rule_cnt = rc; 875 return 0; 876 } 877 878 default: 879 return -EOPNOTSUPP; 880 } 881 } 882 883 static int efx_ethtool_set_class_rule(struct efx_nic *efx, 884 struct ethtool_rx_flow_spec *rule) 885 { 886 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 887 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 888 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 889 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 890 struct efx_filter_spec spec; 891 int rc; 892 893 /* Check that user wants us to choose the location */ 894 if (rule->location != RX_CLS_LOC_ANY) 895 return -EINVAL; 896 897 /* Range-check ring_cookie */ 898 if (rule->ring_cookie >= efx->n_rx_channels && 899 rule->ring_cookie != RX_CLS_FLOW_DISC) 900 return -EINVAL; 901 902 /* Check for unsupported extensions */ 903 if ((rule->flow_type & FLOW_EXT) && 904 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 905 rule->m_ext.data[1])) 906 return -EINVAL; 907 908 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, 909 efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0, 910 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 911 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 912 913 switch (rule->flow_type & ~FLOW_EXT) { 914 case TCP_V4_FLOW: 915 case UDP_V4_FLOW: 916 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 917 EFX_FILTER_MATCH_IP_PROTO); 918 spec.ether_type = htons(ETH_P_IP); 919 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ? 920 IPPROTO_TCP : IPPROTO_UDP); 921 if (ip_mask->ip4dst) { 922 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 923 return -EINVAL; 924 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 925 spec.loc_host[0] = ip_entry->ip4dst; 926 } 927 if (ip_mask->ip4src) { 928 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 929 return -EINVAL; 930 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 931 spec.rem_host[0] = ip_entry->ip4src; 932 } 933 if (ip_mask->pdst) { 934 if (ip_mask->pdst != PORT_FULL_MASK) 935 return -EINVAL; 936 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 937 spec.loc_port = ip_entry->pdst; 938 } 939 if (ip_mask->psrc) { 940 if (ip_mask->psrc != PORT_FULL_MASK) 941 return -EINVAL; 942 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 943 spec.rem_port = ip_entry->psrc; 944 } 945 if (ip_mask->tos) 946 return -EINVAL; 947 break; 948 949 case ETHER_FLOW: 950 if (!is_zero_ether_addr(mac_mask->h_dest)) { 951 if (ether_addr_equal(mac_mask->h_dest, 952 mac_addr_ig_mask)) 953 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG; 954 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 955 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC; 956 else 957 return -EINVAL; 958 memcpy(spec.loc_mac, mac_entry->h_dest, ETH_ALEN); 959 } 960 if (!is_zero_ether_addr(mac_mask->h_source)) { 961 if (!is_broadcast_ether_addr(mac_mask->h_source)) 962 return -EINVAL; 963 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC; 964 memcpy(spec.rem_mac, mac_entry->h_source, ETH_ALEN); 965 } 966 if (mac_mask->h_proto) { 967 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 968 return -EINVAL; 969 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE; 970 spec.ether_type = mac_entry->h_proto; 971 } 972 break; 973 974 default: 975 return -EINVAL; 976 } 977 978 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 979 if (rule->m_ext.vlan_tci != htons(0xfff)) 980 return -EINVAL; 981 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID; 982 spec.outer_vid = rule->h_ext.vlan_tci; 983 } 984 985 rc = efx_filter_insert_filter(efx, &spec, true); 986 if (rc < 0) 987 return rc; 988 989 rule->location = rc; 990 return 0; 991 } 992 993 static int efx_ethtool_set_rxnfc(struct net_device *net_dev, 994 struct ethtool_rxnfc *info) 995 { 996 struct efx_nic *efx = netdev_priv(net_dev); 997 998 if (efx_filter_get_rx_id_limit(efx) == 0) 999 return -EOPNOTSUPP; 1000 1001 switch (info->cmd) { 1002 case ETHTOOL_SRXCLSRLINS: 1003 return efx_ethtool_set_class_rule(efx, &info->fs); 1004 1005 case ETHTOOL_SRXCLSRLDEL: 1006 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, 1007 info->fs.location); 1008 1009 default: 1010 return -EOPNOTSUPP; 1011 } 1012 } 1013 1014 static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1015 { 1016 struct efx_nic *efx = netdev_priv(net_dev); 1017 1018 return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 || 1019 efx->n_rx_channels == 1) ? 1020 0 : ARRAY_SIZE(efx->rx_indir_table)); 1021 } 1022 1023 static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev, u32 *indir) 1024 { 1025 struct efx_nic *efx = netdev_priv(net_dev); 1026 1027 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table)); 1028 return 0; 1029 } 1030 1031 static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev, 1032 const u32 *indir) 1033 { 1034 struct efx_nic *efx = netdev_priv(net_dev); 1035 1036 memcpy(efx->rx_indir_table, indir, sizeof(efx->rx_indir_table)); 1037 efx_nic_push_rx_indir_table(efx); 1038 return 0; 1039 } 1040 1041 static int efx_ethtool_get_ts_info(struct net_device *net_dev, 1042 struct ethtool_ts_info *ts_info) 1043 { 1044 struct efx_nic *efx = netdev_priv(net_dev); 1045 1046 /* Software capabilities */ 1047 ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE | 1048 SOF_TIMESTAMPING_SOFTWARE); 1049 ts_info->phc_index = -1; 1050 1051 efx_ptp_get_ts_info(efx, ts_info); 1052 return 0; 1053 } 1054 1055 static int efx_ethtool_get_module_eeprom(struct net_device *net_dev, 1056 struct ethtool_eeprom *ee, 1057 u8 *data) 1058 { 1059 struct efx_nic *efx = netdev_priv(net_dev); 1060 int ret; 1061 1062 if (!efx->phy_op || !efx->phy_op->get_module_eeprom) 1063 return -EOPNOTSUPP; 1064 1065 mutex_lock(&efx->mac_lock); 1066 ret = efx->phy_op->get_module_eeprom(efx, ee, data); 1067 mutex_unlock(&efx->mac_lock); 1068 1069 return ret; 1070 } 1071 1072 static int efx_ethtool_get_module_info(struct net_device *net_dev, 1073 struct ethtool_modinfo *modinfo) 1074 { 1075 struct efx_nic *efx = netdev_priv(net_dev); 1076 int ret; 1077 1078 if (!efx->phy_op || !efx->phy_op->get_module_info) 1079 return -EOPNOTSUPP; 1080 1081 mutex_lock(&efx->mac_lock); 1082 ret = efx->phy_op->get_module_info(efx, modinfo); 1083 mutex_unlock(&efx->mac_lock); 1084 1085 return ret; 1086 } 1087 1088 const struct ethtool_ops efx_ethtool_ops = { 1089 .get_settings = efx_ethtool_get_settings, 1090 .set_settings = efx_ethtool_set_settings, 1091 .get_drvinfo = efx_ethtool_get_drvinfo, 1092 .get_regs_len = efx_ethtool_get_regs_len, 1093 .get_regs = efx_ethtool_get_regs, 1094 .get_msglevel = efx_ethtool_get_msglevel, 1095 .set_msglevel = efx_ethtool_set_msglevel, 1096 .nway_reset = efx_ethtool_nway_reset, 1097 .get_link = ethtool_op_get_link, 1098 .get_coalesce = efx_ethtool_get_coalesce, 1099 .set_coalesce = efx_ethtool_set_coalesce, 1100 .get_ringparam = efx_ethtool_get_ringparam, 1101 .set_ringparam = efx_ethtool_set_ringparam, 1102 .get_pauseparam = efx_ethtool_get_pauseparam, 1103 .set_pauseparam = efx_ethtool_set_pauseparam, 1104 .get_sset_count = efx_ethtool_get_sset_count, 1105 .self_test = efx_ethtool_self_test, 1106 .get_strings = efx_ethtool_get_strings, 1107 .set_phys_id = efx_ethtool_phys_id, 1108 .get_ethtool_stats = efx_ethtool_get_stats, 1109 .get_wol = efx_ethtool_get_wol, 1110 .set_wol = efx_ethtool_set_wol, 1111 .reset = efx_ethtool_reset, 1112 .get_rxnfc = efx_ethtool_get_rxnfc, 1113 .set_rxnfc = efx_ethtool_set_rxnfc, 1114 .get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size, 1115 .get_rxfh_indir = efx_ethtool_get_rxfh_indir, 1116 .set_rxfh_indir = efx_ethtool_set_rxfh_indir, 1117 .get_ts_info = efx_ethtool_get_ts_info, 1118 .get_module_info = efx_ethtool_get_module_info, 1119 .get_module_eeprom = efx_ethtool_get_module_eeprom, 1120 }; 1121