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 * Fill in a block of loopback self-test entries. Return new test 256 * index. 257 */ 258 static int efx_fill_loopback_test(struct efx_nic *efx, 259 struct efx_loopback_self_tests *lb_tests, 260 enum efx_loopback_mode mode, 261 unsigned int test_index, 262 u8 *strings, u64 *data) 263 { 264 struct efx_channel *channel = 265 efx_get_channel(efx, efx->tx_channel_offset); 266 struct efx_tx_queue *tx_queue; 267 268 efx_for_each_channel_tx_queue(tx_queue, channel) { 269 efx_fill_test(test_index++, strings, data, 270 &lb_tests->tx_sent[tx_queue->queue], 271 EFX_TX_QUEUE_NAME(tx_queue), 272 EFX_LOOPBACK_NAME(mode, "tx_sent")); 273 efx_fill_test(test_index++, strings, data, 274 &lb_tests->tx_done[tx_queue->queue], 275 EFX_TX_QUEUE_NAME(tx_queue), 276 EFX_LOOPBACK_NAME(mode, "tx_done")); 277 } 278 efx_fill_test(test_index++, strings, data, 279 &lb_tests->rx_good, 280 "rx", 0, 281 EFX_LOOPBACK_NAME(mode, "rx_good")); 282 efx_fill_test(test_index++, strings, data, 283 &lb_tests->rx_bad, 284 "rx", 0, 285 EFX_LOOPBACK_NAME(mode, "rx_bad")); 286 287 return test_index; 288 } 289 290 /** 291 * efx_ethtool_fill_self_tests - get self-test details 292 * @efx: Efx NIC 293 * @tests: Efx self-test results structure, or %NULL 294 * @strings: Ethtool strings, or %NULL 295 * @data: Ethtool test results, or %NULL 296 * 297 * Get self-test number of strings, strings, and/or test results. 298 * Return number of strings (== number of test results). 299 * 300 * The reason for merging these three functions is to make sure that 301 * they can never be inconsistent. 302 */ 303 static int efx_ethtool_fill_self_tests(struct efx_nic *efx, 304 struct efx_self_tests *tests, 305 u8 *strings, u64 *data) 306 { 307 struct efx_channel *channel; 308 unsigned int n = 0, i; 309 enum efx_loopback_mode mode; 310 311 efx_fill_test(n++, strings, data, &tests->phy_alive, 312 "phy", 0, "alive", NULL); 313 efx_fill_test(n++, strings, data, &tests->nvram, 314 "core", 0, "nvram", NULL); 315 efx_fill_test(n++, strings, data, &tests->interrupt, 316 "core", 0, "interrupt", NULL); 317 318 /* Event queues */ 319 efx_for_each_channel(channel, efx) { 320 efx_fill_test(n++, strings, data, 321 &tests->eventq_dma[channel->channel], 322 EFX_CHANNEL_NAME(channel), 323 "eventq.dma", NULL); 324 efx_fill_test(n++, strings, data, 325 &tests->eventq_int[channel->channel], 326 EFX_CHANNEL_NAME(channel), 327 "eventq.int", NULL); 328 } 329 330 efx_fill_test(n++, strings, data, &tests->memory, 331 "core", 0, "memory", NULL); 332 efx_fill_test(n++, strings, data, &tests->registers, 333 "core", 0, "registers", NULL); 334 335 if (efx->phy_op->run_tests != NULL) { 336 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL); 337 338 for (i = 0; true; ++i) { 339 const char *name; 340 341 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS); 342 name = efx->phy_op->test_name(efx, i); 343 if (name == NULL) 344 break; 345 346 efx_fill_test(n++, strings, data, &tests->phy_ext[i], 347 "phy", 0, name, NULL); 348 } 349 } 350 351 /* Loopback tests */ 352 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) { 353 if (!(efx->loopback_modes & (1 << mode))) 354 continue; 355 n = efx_fill_loopback_test(efx, 356 &tests->loopback[mode], mode, n, 357 strings, data); 358 } 359 360 return n; 361 } 362 363 static int efx_ethtool_get_sset_count(struct net_device *net_dev, 364 int string_set) 365 { 366 struct efx_nic *efx = netdev_priv(net_dev); 367 368 switch (string_set) { 369 case ETH_SS_STATS: 370 return efx->type->describe_stats(efx, NULL) + 371 EFX_ETHTOOL_SW_STAT_COUNT + 372 efx_ptp_describe_stats(efx, NULL); 373 case ETH_SS_TEST: 374 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL); 375 default: 376 return -EINVAL; 377 } 378 } 379 380 static void efx_ethtool_get_strings(struct net_device *net_dev, 381 u32 string_set, u8 *strings) 382 { 383 struct efx_nic *efx = netdev_priv(net_dev); 384 int i; 385 386 switch (string_set) { 387 case ETH_SS_STATS: 388 strings += (efx->type->describe_stats(efx, strings) * 389 ETH_GSTRING_LEN); 390 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) 391 strlcpy(strings + i * ETH_GSTRING_LEN, 392 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN); 393 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN; 394 efx_ptp_describe_stats(efx, strings); 395 break; 396 case ETH_SS_TEST: 397 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL); 398 break; 399 default: 400 /* No other string sets */ 401 break; 402 } 403 } 404 405 static void efx_ethtool_get_stats(struct net_device *net_dev, 406 struct ethtool_stats *stats, 407 u64 *data) 408 { 409 struct efx_nic *efx = netdev_priv(net_dev); 410 const struct efx_sw_stat_desc *stat; 411 struct efx_channel *channel; 412 struct efx_tx_queue *tx_queue; 413 int i; 414 415 spin_lock_bh(&efx->stats_lock); 416 417 /* Get NIC statistics */ 418 data += efx->type->update_stats(efx, data, NULL); 419 420 /* Get software statistics */ 421 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) { 422 stat = &efx_sw_stat_desc[i]; 423 switch (stat->source) { 424 case EFX_ETHTOOL_STAT_SOURCE_nic: 425 data[i] = stat->get_stat((void *)efx + stat->offset); 426 break; 427 case EFX_ETHTOOL_STAT_SOURCE_channel: 428 data[i] = 0; 429 efx_for_each_channel(channel, efx) 430 data[i] += stat->get_stat((void *)channel + 431 stat->offset); 432 break; 433 case EFX_ETHTOOL_STAT_SOURCE_tx_queue: 434 data[i] = 0; 435 efx_for_each_channel(channel, efx) { 436 efx_for_each_channel_tx_queue(tx_queue, channel) 437 data[i] += 438 stat->get_stat((void *)tx_queue 439 + stat->offset); 440 } 441 break; 442 } 443 } 444 data += EFX_ETHTOOL_SW_STAT_COUNT; 445 446 spin_unlock_bh(&efx->stats_lock); 447 448 efx_ptp_update_stats(efx, data); 449 } 450 451 static void efx_ethtool_self_test(struct net_device *net_dev, 452 struct ethtool_test *test, u64 *data) 453 { 454 struct efx_nic *efx = netdev_priv(net_dev); 455 struct efx_self_tests *efx_tests; 456 bool already_up; 457 int rc = -ENOMEM; 458 459 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL); 460 if (!efx_tests) 461 goto fail; 462 463 if (efx->state != STATE_READY) { 464 rc = -EBUSY; 465 goto out; 466 } 467 468 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n", 469 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 470 471 /* We need rx buffers and interrupts. */ 472 already_up = (efx->net_dev->flags & IFF_UP); 473 if (!already_up) { 474 rc = dev_open(efx->net_dev); 475 if (rc) { 476 netif_err(efx, drv, efx->net_dev, 477 "failed opening device.\n"); 478 goto out; 479 } 480 } 481 482 rc = efx_selftest(efx, efx_tests, test->flags); 483 484 if (!already_up) 485 dev_close(efx->net_dev); 486 487 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n", 488 rc == 0 ? "passed" : "failed", 489 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 490 491 out: 492 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data); 493 kfree(efx_tests); 494 fail: 495 if (rc) 496 test->flags |= ETH_TEST_FL_FAILED; 497 } 498 499 /* Restart autonegotiation */ 500 static int efx_ethtool_nway_reset(struct net_device *net_dev) 501 { 502 struct efx_nic *efx = netdev_priv(net_dev); 503 504 return mdio45_nway_restart(&efx->mdio); 505 } 506 507 /* 508 * Each channel has a single IRQ and moderation timer, started by any 509 * completion (or other event). Unless the module parameter 510 * separate_tx_channels is set, IRQs and moderation are therefore 511 * shared between RX and TX completions. In this case, when RX IRQ 512 * moderation is explicitly changed then TX IRQ moderation is 513 * automatically changed too, but otherwise we fail if the two values 514 * are requested to be different. 515 * 516 * The hardware does not support a limit on the number of completions 517 * before an IRQ, so we do not use the max_frames fields. We should 518 * report and require that max_frames == (usecs != 0), but this would 519 * invalidate existing user documentation. 520 * 521 * The hardware does not have distinct settings for interrupt 522 * moderation while the previous IRQ is being handled, so we should 523 * not use the 'irq' fields. However, an earlier developer 524 * misunderstood the meaning of the 'irq' fields and the driver did 525 * not support the standard fields. To avoid invalidating existing 526 * user documentation, we report and accept changes through either the 527 * standard or 'irq' fields. If both are changed at the same time, we 528 * prefer the standard field. 529 * 530 * We implement adaptive IRQ moderation, but use a different algorithm 531 * from that assumed in the definition of struct ethtool_coalesce. 532 * Therefore we do not use any of the adaptive moderation parameters 533 * in it. 534 */ 535 536 static int efx_ethtool_get_coalesce(struct net_device *net_dev, 537 struct ethtool_coalesce *coalesce) 538 { 539 struct efx_nic *efx = netdev_priv(net_dev); 540 unsigned int tx_usecs, rx_usecs; 541 bool rx_adaptive; 542 543 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive); 544 545 coalesce->tx_coalesce_usecs = tx_usecs; 546 coalesce->tx_coalesce_usecs_irq = tx_usecs; 547 coalesce->rx_coalesce_usecs = rx_usecs; 548 coalesce->rx_coalesce_usecs_irq = rx_usecs; 549 coalesce->use_adaptive_rx_coalesce = rx_adaptive; 550 551 return 0; 552 } 553 554 static int efx_ethtool_set_coalesce(struct net_device *net_dev, 555 struct ethtool_coalesce *coalesce) 556 { 557 struct efx_nic *efx = netdev_priv(net_dev); 558 struct efx_channel *channel; 559 unsigned int tx_usecs, rx_usecs; 560 bool adaptive, rx_may_override_tx; 561 int rc; 562 563 if (coalesce->use_adaptive_tx_coalesce) 564 return -EINVAL; 565 566 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive); 567 568 if (coalesce->rx_coalesce_usecs != rx_usecs) 569 rx_usecs = coalesce->rx_coalesce_usecs; 570 else 571 rx_usecs = coalesce->rx_coalesce_usecs_irq; 572 573 adaptive = coalesce->use_adaptive_rx_coalesce; 574 575 /* If channels are shared, TX IRQ moderation can be quietly 576 * overridden unless it is changed from its old value. 577 */ 578 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs && 579 coalesce->tx_coalesce_usecs_irq == tx_usecs); 580 if (coalesce->tx_coalesce_usecs != tx_usecs) 581 tx_usecs = coalesce->tx_coalesce_usecs; 582 else 583 tx_usecs = coalesce->tx_coalesce_usecs_irq; 584 585 rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive, 586 rx_may_override_tx); 587 if (rc != 0) 588 return rc; 589 590 efx_for_each_channel(channel, efx) 591 efx->type->push_irq_moderation(channel); 592 593 return 0; 594 } 595 596 static void efx_ethtool_get_ringparam(struct net_device *net_dev, 597 struct ethtool_ringparam *ring) 598 { 599 struct efx_nic *efx = netdev_priv(net_dev); 600 601 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE; 602 ring->tx_max_pending = EFX_TXQ_MAX_ENT(efx); 603 ring->rx_pending = efx->rxq_entries; 604 ring->tx_pending = efx->txq_entries; 605 } 606 607 static int efx_ethtool_set_ringparam(struct net_device *net_dev, 608 struct ethtool_ringparam *ring) 609 { 610 struct efx_nic *efx = netdev_priv(net_dev); 611 u32 txq_entries; 612 613 if (ring->rx_mini_pending || ring->rx_jumbo_pending || 614 ring->rx_pending > EFX_MAX_DMAQ_SIZE || 615 ring->tx_pending > EFX_TXQ_MAX_ENT(efx)) 616 return -EINVAL; 617 618 if (ring->rx_pending < EFX_RXQ_MIN_ENT) { 619 netif_err(efx, drv, efx->net_dev, 620 "RX queues cannot be smaller than %u\n", 621 EFX_RXQ_MIN_ENT); 622 return -EINVAL; 623 } 624 625 txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx)); 626 if (txq_entries != ring->tx_pending) 627 netif_warn(efx, drv, efx->net_dev, 628 "increasing TX queue size to minimum of %u\n", 629 txq_entries); 630 631 return efx_realloc_channels(efx, ring->rx_pending, txq_entries); 632 } 633 634 static int efx_ethtool_set_pauseparam(struct net_device *net_dev, 635 struct ethtool_pauseparam *pause) 636 { 637 struct efx_nic *efx = netdev_priv(net_dev); 638 u8 wanted_fc, old_fc; 639 u32 old_adv; 640 int rc = 0; 641 642 mutex_lock(&efx->mac_lock); 643 644 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) | 645 (pause->tx_pause ? EFX_FC_TX : 0) | 646 (pause->autoneg ? EFX_FC_AUTO : 0)); 647 648 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) { 649 netif_dbg(efx, drv, efx->net_dev, 650 "Flow control unsupported: tx ON rx OFF\n"); 651 rc = -EINVAL; 652 goto out; 653 } 654 655 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) { 656 netif_dbg(efx, drv, efx->net_dev, 657 "Autonegotiation is disabled\n"); 658 rc = -EINVAL; 659 goto out; 660 } 661 662 /* Hook for Falcon bug 11482 workaround */ 663 if (efx->type->prepare_enable_fc_tx && 664 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX)) 665 efx->type->prepare_enable_fc_tx(efx); 666 667 old_adv = efx->link_advertising; 668 old_fc = efx->wanted_fc; 669 efx_link_set_wanted_fc(efx, wanted_fc); 670 if (efx->link_advertising != old_adv || 671 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) { 672 rc = efx->phy_op->reconfigure(efx); 673 if (rc) { 674 netif_err(efx, drv, efx->net_dev, 675 "Unable to advertise requested flow " 676 "control setting\n"); 677 goto out; 678 } 679 } 680 681 /* Reconfigure the MAC. The PHY *may* generate a link state change event 682 * if the user just changed the advertised capabilities, but there's no 683 * harm doing this twice */ 684 efx->type->reconfigure_mac(efx); 685 686 out: 687 mutex_unlock(&efx->mac_lock); 688 689 return rc; 690 } 691 692 static void efx_ethtool_get_pauseparam(struct net_device *net_dev, 693 struct ethtool_pauseparam *pause) 694 { 695 struct efx_nic *efx = netdev_priv(net_dev); 696 697 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX); 698 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX); 699 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO); 700 } 701 702 static void efx_ethtool_get_wol(struct net_device *net_dev, 703 struct ethtool_wolinfo *wol) 704 { 705 struct efx_nic *efx = netdev_priv(net_dev); 706 return efx->type->get_wol(efx, wol); 707 } 708 709 710 static int efx_ethtool_set_wol(struct net_device *net_dev, 711 struct ethtool_wolinfo *wol) 712 { 713 struct efx_nic *efx = netdev_priv(net_dev); 714 return efx->type->set_wol(efx, wol->wolopts); 715 } 716 717 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) 718 { 719 struct efx_nic *efx = netdev_priv(net_dev); 720 int rc; 721 722 rc = efx->type->map_reset_flags(flags); 723 if (rc < 0) 724 return rc; 725 726 return efx_reset(efx, rc); 727 } 728 729 /* MAC address mask including only I/G bit */ 730 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; 731 732 #define IP4_ADDR_FULL_MASK ((__force __be32)~0) 733 #define PORT_FULL_MASK ((__force __be16)~0) 734 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 735 736 static int efx_ethtool_get_class_rule(struct efx_nic *efx, 737 struct ethtool_rx_flow_spec *rule) 738 { 739 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 740 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 741 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 742 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 743 struct efx_filter_spec spec; 744 int rc; 745 746 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, 747 rule->location, &spec); 748 if (rc) 749 return rc; 750 751 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP) 752 rule->ring_cookie = RX_CLS_FLOW_DISC; 753 else 754 rule->ring_cookie = spec.dmaq_id; 755 756 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 757 spec.ether_type == htons(ETH_P_IP) && 758 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 759 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 760 !(spec.match_flags & 761 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 762 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 763 EFX_FILTER_MATCH_IP_PROTO | 764 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 765 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 766 TCP_V4_FLOW : UDP_V4_FLOW); 767 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 768 ip_entry->ip4dst = spec.loc_host[0]; 769 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 770 } 771 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 772 ip_entry->ip4src = spec.rem_host[0]; 773 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 774 } 775 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 776 ip_entry->pdst = spec.loc_port; 777 ip_mask->pdst = PORT_FULL_MASK; 778 } 779 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 780 ip_entry->psrc = spec.rem_port; 781 ip_mask->psrc = PORT_FULL_MASK; 782 } 783 } else if (!(spec.match_flags & 784 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG | 785 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE | 786 EFX_FILTER_MATCH_OUTER_VID))) { 787 rule->flow_type = ETHER_FLOW; 788 if (spec.match_flags & 789 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) { 790 ether_addr_copy(mac_entry->h_dest, spec.loc_mac); 791 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC) 792 eth_broadcast_addr(mac_mask->h_dest); 793 else 794 ether_addr_copy(mac_mask->h_dest, 795 mac_addr_ig_mask); 796 } 797 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) { 798 ether_addr_copy(mac_entry->h_source, spec.rem_mac); 799 eth_broadcast_addr(mac_mask->h_source); 800 } 801 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) { 802 mac_entry->h_proto = spec.ether_type; 803 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 804 } 805 } else { 806 /* The above should handle all filters that we insert */ 807 WARN_ON(1); 808 return -EINVAL; 809 } 810 811 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) { 812 rule->flow_type |= FLOW_EXT; 813 rule->h_ext.vlan_tci = spec.outer_vid; 814 rule->m_ext.vlan_tci = htons(0xfff); 815 } 816 817 return rc; 818 } 819 820 static int 821 efx_ethtool_get_rxnfc(struct net_device *net_dev, 822 struct ethtool_rxnfc *info, u32 *rule_locs) 823 { 824 struct efx_nic *efx = netdev_priv(net_dev); 825 826 switch (info->cmd) { 827 case ETHTOOL_GRXRINGS: 828 info->data = efx->n_rx_channels; 829 return 0; 830 831 case ETHTOOL_GRXFH: { 832 unsigned min_revision = 0; 833 834 info->data = 0; 835 switch (info->flow_type) { 836 case TCP_V4_FLOW: 837 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 838 /* fall through */ 839 case UDP_V4_FLOW: 840 case SCTP_V4_FLOW: 841 case AH_ESP_V4_FLOW: 842 case IPV4_FLOW: 843 info->data |= RXH_IP_SRC | RXH_IP_DST; 844 min_revision = EFX_REV_FALCON_B0; 845 break; 846 case TCP_V6_FLOW: 847 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 848 /* fall through */ 849 case UDP_V6_FLOW: 850 case SCTP_V6_FLOW: 851 case AH_ESP_V6_FLOW: 852 case IPV6_FLOW: 853 info->data |= RXH_IP_SRC | RXH_IP_DST; 854 min_revision = EFX_REV_SIENA_A0; 855 break; 856 default: 857 break; 858 } 859 if (efx_nic_rev(efx) < min_revision) 860 info->data = 0; 861 return 0; 862 } 863 864 case ETHTOOL_GRXCLSRLCNT: 865 info->data = efx_filter_get_rx_id_limit(efx); 866 if (info->data == 0) 867 return -EOPNOTSUPP; 868 info->data |= RX_CLS_LOC_SPECIAL; 869 info->rule_cnt = 870 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL); 871 return 0; 872 873 case ETHTOOL_GRXCLSRULE: 874 if (efx_filter_get_rx_id_limit(efx) == 0) 875 return -EOPNOTSUPP; 876 return efx_ethtool_get_class_rule(efx, &info->fs); 877 878 case ETHTOOL_GRXCLSRLALL: { 879 s32 rc; 880 info->data = efx_filter_get_rx_id_limit(efx); 881 if (info->data == 0) 882 return -EOPNOTSUPP; 883 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL, 884 rule_locs, info->rule_cnt); 885 if (rc < 0) 886 return rc; 887 info->rule_cnt = rc; 888 return 0; 889 } 890 891 default: 892 return -EOPNOTSUPP; 893 } 894 } 895 896 static int efx_ethtool_set_class_rule(struct efx_nic *efx, 897 struct ethtool_rx_flow_spec *rule) 898 { 899 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 900 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 901 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 902 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 903 struct efx_filter_spec spec; 904 int rc; 905 906 /* Check that user wants us to choose the location */ 907 if (rule->location != RX_CLS_LOC_ANY) 908 return -EINVAL; 909 910 /* Range-check ring_cookie */ 911 if (rule->ring_cookie >= efx->n_rx_channels && 912 rule->ring_cookie != RX_CLS_FLOW_DISC) 913 return -EINVAL; 914 915 /* Check for unsupported extensions */ 916 if ((rule->flow_type & FLOW_EXT) && 917 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 918 rule->m_ext.data[1])) 919 return -EINVAL; 920 921 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, 922 efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0, 923 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 924 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 925 926 switch (rule->flow_type & ~FLOW_EXT) { 927 case TCP_V4_FLOW: 928 case UDP_V4_FLOW: 929 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 930 EFX_FILTER_MATCH_IP_PROTO); 931 spec.ether_type = htons(ETH_P_IP); 932 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ? 933 IPPROTO_TCP : IPPROTO_UDP); 934 if (ip_mask->ip4dst) { 935 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 936 return -EINVAL; 937 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 938 spec.loc_host[0] = ip_entry->ip4dst; 939 } 940 if (ip_mask->ip4src) { 941 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 942 return -EINVAL; 943 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 944 spec.rem_host[0] = ip_entry->ip4src; 945 } 946 if (ip_mask->pdst) { 947 if (ip_mask->pdst != PORT_FULL_MASK) 948 return -EINVAL; 949 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 950 spec.loc_port = ip_entry->pdst; 951 } 952 if (ip_mask->psrc) { 953 if (ip_mask->psrc != PORT_FULL_MASK) 954 return -EINVAL; 955 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 956 spec.rem_port = ip_entry->psrc; 957 } 958 if (ip_mask->tos) 959 return -EINVAL; 960 break; 961 962 case ETHER_FLOW: 963 if (!is_zero_ether_addr(mac_mask->h_dest)) { 964 if (ether_addr_equal(mac_mask->h_dest, 965 mac_addr_ig_mask)) 966 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG; 967 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 968 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC; 969 else 970 return -EINVAL; 971 ether_addr_copy(spec.loc_mac, mac_entry->h_dest); 972 } 973 if (!is_zero_ether_addr(mac_mask->h_source)) { 974 if (!is_broadcast_ether_addr(mac_mask->h_source)) 975 return -EINVAL; 976 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC; 977 ether_addr_copy(spec.rem_mac, mac_entry->h_source); 978 } 979 if (mac_mask->h_proto) { 980 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 981 return -EINVAL; 982 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE; 983 spec.ether_type = mac_entry->h_proto; 984 } 985 break; 986 987 default: 988 return -EINVAL; 989 } 990 991 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 992 if (rule->m_ext.vlan_tci != htons(0xfff)) 993 return -EINVAL; 994 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID; 995 spec.outer_vid = rule->h_ext.vlan_tci; 996 } 997 998 rc = efx_filter_insert_filter(efx, &spec, true); 999 if (rc < 0) 1000 return rc; 1001 1002 rule->location = rc; 1003 return 0; 1004 } 1005 1006 static int efx_ethtool_set_rxnfc(struct net_device *net_dev, 1007 struct ethtool_rxnfc *info) 1008 { 1009 struct efx_nic *efx = netdev_priv(net_dev); 1010 1011 if (efx_filter_get_rx_id_limit(efx) == 0) 1012 return -EOPNOTSUPP; 1013 1014 switch (info->cmd) { 1015 case ETHTOOL_SRXCLSRLINS: 1016 return efx_ethtool_set_class_rule(efx, &info->fs); 1017 1018 case ETHTOOL_SRXCLSRLDEL: 1019 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, 1020 info->fs.location); 1021 1022 default: 1023 return -EOPNOTSUPP; 1024 } 1025 } 1026 1027 static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1028 { 1029 struct efx_nic *efx = netdev_priv(net_dev); 1030 1031 return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 || 1032 efx->n_rx_channels == 1) ? 1033 0 : ARRAY_SIZE(efx->rx_indir_table)); 1034 } 1035 1036 static int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key) 1037 { 1038 struct efx_nic *efx = netdev_priv(net_dev); 1039 1040 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table)); 1041 return 0; 1042 } 1043 1044 static int efx_ethtool_set_rxfh(struct net_device *net_dev, 1045 const u32 *indir, const u8 *key) 1046 { 1047 struct efx_nic *efx = netdev_priv(net_dev); 1048 1049 memcpy(efx->rx_indir_table, indir, sizeof(efx->rx_indir_table)); 1050 efx->type->rx_push_rss_config(efx); 1051 return 0; 1052 } 1053 1054 static int efx_ethtool_get_ts_info(struct net_device *net_dev, 1055 struct ethtool_ts_info *ts_info) 1056 { 1057 struct efx_nic *efx = netdev_priv(net_dev); 1058 1059 /* Software capabilities */ 1060 ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE | 1061 SOF_TIMESTAMPING_SOFTWARE); 1062 ts_info->phc_index = -1; 1063 1064 efx_ptp_get_ts_info(efx, ts_info); 1065 return 0; 1066 } 1067 1068 static int efx_ethtool_get_module_eeprom(struct net_device *net_dev, 1069 struct ethtool_eeprom *ee, 1070 u8 *data) 1071 { 1072 struct efx_nic *efx = netdev_priv(net_dev); 1073 int ret; 1074 1075 if (!efx->phy_op || !efx->phy_op->get_module_eeprom) 1076 return -EOPNOTSUPP; 1077 1078 mutex_lock(&efx->mac_lock); 1079 ret = efx->phy_op->get_module_eeprom(efx, ee, data); 1080 mutex_unlock(&efx->mac_lock); 1081 1082 return ret; 1083 } 1084 1085 static int efx_ethtool_get_module_info(struct net_device *net_dev, 1086 struct ethtool_modinfo *modinfo) 1087 { 1088 struct efx_nic *efx = netdev_priv(net_dev); 1089 int ret; 1090 1091 if (!efx->phy_op || !efx->phy_op->get_module_info) 1092 return -EOPNOTSUPP; 1093 1094 mutex_lock(&efx->mac_lock); 1095 ret = efx->phy_op->get_module_info(efx, modinfo); 1096 mutex_unlock(&efx->mac_lock); 1097 1098 return ret; 1099 } 1100 1101 const struct ethtool_ops efx_ethtool_ops = { 1102 .get_settings = efx_ethtool_get_settings, 1103 .set_settings = efx_ethtool_set_settings, 1104 .get_drvinfo = efx_ethtool_get_drvinfo, 1105 .get_regs_len = efx_ethtool_get_regs_len, 1106 .get_regs = efx_ethtool_get_regs, 1107 .get_msglevel = efx_ethtool_get_msglevel, 1108 .set_msglevel = efx_ethtool_set_msglevel, 1109 .nway_reset = efx_ethtool_nway_reset, 1110 .get_link = ethtool_op_get_link, 1111 .get_coalesce = efx_ethtool_get_coalesce, 1112 .set_coalesce = efx_ethtool_set_coalesce, 1113 .get_ringparam = efx_ethtool_get_ringparam, 1114 .set_ringparam = efx_ethtool_set_ringparam, 1115 .get_pauseparam = efx_ethtool_get_pauseparam, 1116 .set_pauseparam = efx_ethtool_set_pauseparam, 1117 .get_sset_count = efx_ethtool_get_sset_count, 1118 .self_test = efx_ethtool_self_test, 1119 .get_strings = efx_ethtool_get_strings, 1120 .set_phys_id = efx_ethtool_phys_id, 1121 .get_ethtool_stats = efx_ethtool_get_stats, 1122 .get_wol = efx_ethtool_get_wol, 1123 .set_wol = efx_ethtool_set_wol, 1124 .reset = efx_ethtool_reset, 1125 .get_rxnfc = efx_ethtool_get_rxnfc, 1126 .set_rxnfc = efx_ethtool_set_rxnfc, 1127 .get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size, 1128 .get_rxfh = efx_ethtool_get_rxfh, 1129 .set_rxfh = efx_ethtool_set_rxfh, 1130 .get_ts_info = efx_ethtool_get_ts_info, 1131 .get_module_info = efx_ethtool_get_module_info, 1132 .get_module_eeprom = efx_ethtool_get_module_eeprom, 1133 }; 1134