1 /**************************************************************************** 2 * Driver for Solarflare network controllers and boards 3 * Copyright 2005-2006 Fen Systems Ltd. 4 * Copyright 2006-2013 Solarflare Communications Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 as published 8 * by the Free Software Foundation, incorporated herein by reference. 9 */ 10 11 #include <linux/netdevice.h> 12 #include <linux/ethtool.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/in.h> 15 #include "net_driver.h" 16 #include "workarounds.h" 17 #include "selftest.h" 18 #include "efx.h" 19 #include "filter.h" 20 #include "nic.h" 21 22 struct ef4_sw_stat_desc { 23 const char *name; 24 enum { 25 EF4_ETHTOOL_STAT_SOURCE_nic, 26 EF4_ETHTOOL_STAT_SOURCE_channel, 27 EF4_ETHTOOL_STAT_SOURCE_tx_queue 28 } source; 29 unsigned offset; 30 u64(*get_stat) (void *field); /* Reader function */ 31 }; 32 33 /* Initialiser for a struct ef4_sw_stat_desc with type-checking */ 34 #define EF4_ETHTOOL_STAT(stat_name, source_name, field, field_type, \ 35 get_stat_function) { \ 36 .name = #stat_name, \ 37 .source = EF4_ETHTOOL_STAT_SOURCE_##source_name, \ 38 .offset = ((((field_type *) 0) == \ 39 &((struct ef4_##source_name *)0)->field) ? \ 40 offsetof(struct ef4_##source_name, field) : \ 41 offsetof(struct ef4_##source_name, field)), \ 42 .get_stat = get_stat_function, \ 43 } 44 45 static u64 ef4_get_uint_stat(void *field) 46 { 47 return *(unsigned int *)field; 48 } 49 50 static u64 ef4_get_atomic_stat(void *field) 51 { 52 return atomic_read((atomic_t *) field); 53 } 54 55 #define EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \ 56 EF4_ETHTOOL_STAT(field, nic, field, \ 57 atomic_t, ef4_get_atomic_stat) 58 59 #define EF4_ETHTOOL_UINT_CHANNEL_STAT(field) \ 60 EF4_ETHTOOL_STAT(field, channel, n_##field, \ 61 unsigned int, ef4_get_uint_stat) 62 63 #define EF4_ETHTOOL_UINT_TXQ_STAT(field) \ 64 EF4_ETHTOOL_STAT(tx_##field, tx_queue, field, \ 65 unsigned int, ef4_get_uint_stat) 66 67 static const struct ef4_sw_stat_desc ef4_sw_stat_desc[] = { 68 EF4_ETHTOOL_UINT_TXQ_STAT(merge_events), 69 EF4_ETHTOOL_UINT_TXQ_STAT(pushes), 70 EF4_ETHTOOL_UINT_TXQ_STAT(cb_packets), 71 EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset), 72 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc), 73 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err), 74 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err), 75 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch), 76 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc), 77 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events), 78 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets), 79 }; 80 81 #define EF4_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(ef4_sw_stat_desc) 82 83 #define EF4_ETHTOOL_EEPROM_MAGIC 0xEFAB 84 85 /************************************************************************** 86 * 87 * Ethtool operations 88 * 89 ************************************************************************** 90 */ 91 92 /* Identify device by flashing LEDs */ 93 static int ef4_ethtool_phys_id(struct net_device *net_dev, 94 enum ethtool_phys_id_state state) 95 { 96 struct ef4_nic *efx = netdev_priv(net_dev); 97 enum ef4_led_mode mode = EF4_LED_DEFAULT; 98 99 switch (state) { 100 case ETHTOOL_ID_ON: 101 mode = EF4_LED_ON; 102 break; 103 case ETHTOOL_ID_OFF: 104 mode = EF4_LED_OFF; 105 break; 106 case ETHTOOL_ID_INACTIVE: 107 mode = EF4_LED_DEFAULT; 108 break; 109 case ETHTOOL_ID_ACTIVE: 110 return 1; /* cycle on/off once per second */ 111 } 112 113 efx->type->set_id_led(efx, mode); 114 return 0; 115 } 116 117 /* This must be called with rtnl_lock held. */ 118 static int ef4_ethtool_get_settings(struct net_device *net_dev, 119 struct ethtool_cmd *ecmd) 120 { 121 struct ef4_nic *efx = netdev_priv(net_dev); 122 struct ef4_link_state *link_state = &efx->link_state; 123 124 mutex_lock(&efx->mac_lock); 125 efx->phy_op->get_settings(efx, ecmd); 126 mutex_unlock(&efx->mac_lock); 127 128 /* Both MACs support pause frames (bidirectional and respond-only) */ 129 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause; 130 131 if (LOOPBACK_INTERNAL(efx)) { 132 ethtool_cmd_speed_set(ecmd, link_state->speed); 133 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; 134 } 135 136 return 0; 137 } 138 139 /* This must be called with rtnl_lock held. */ 140 static int ef4_ethtool_set_settings(struct net_device *net_dev, 141 struct ethtool_cmd *ecmd) 142 { 143 struct ef4_nic *efx = netdev_priv(net_dev); 144 int rc; 145 146 /* GMAC does not support 1000Mbps HD */ 147 if ((ethtool_cmd_speed(ecmd) == SPEED_1000) && 148 (ecmd->duplex != DUPLEX_FULL)) { 149 netif_dbg(efx, drv, efx->net_dev, 150 "rejecting unsupported 1000Mbps HD setting\n"); 151 return -EINVAL; 152 } 153 154 mutex_lock(&efx->mac_lock); 155 rc = efx->phy_op->set_settings(efx, ecmd); 156 mutex_unlock(&efx->mac_lock); 157 return rc; 158 } 159 160 static void ef4_ethtool_get_drvinfo(struct net_device *net_dev, 161 struct ethtool_drvinfo *info) 162 { 163 struct ef4_nic *efx = netdev_priv(net_dev); 164 165 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); 166 strlcpy(info->version, EF4_DRIVER_VERSION, sizeof(info->version)); 167 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info)); 168 } 169 170 static int ef4_ethtool_get_regs_len(struct net_device *net_dev) 171 { 172 return ef4_nic_get_regs_len(netdev_priv(net_dev)); 173 } 174 175 static void ef4_ethtool_get_regs(struct net_device *net_dev, 176 struct ethtool_regs *regs, void *buf) 177 { 178 struct ef4_nic *efx = netdev_priv(net_dev); 179 180 regs->version = efx->type->revision; 181 ef4_nic_get_regs(efx, buf); 182 } 183 184 static u32 ef4_ethtool_get_msglevel(struct net_device *net_dev) 185 { 186 struct ef4_nic *efx = netdev_priv(net_dev); 187 return efx->msg_enable; 188 } 189 190 static void ef4_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable) 191 { 192 struct ef4_nic *efx = netdev_priv(net_dev); 193 efx->msg_enable = msg_enable; 194 } 195 196 /** 197 * ef4_fill_test - fill in an individual self-test entry 198 * @test_index: Index of the test 199 * @strings: Ethtool strings, or %NULL 200 * @data: Ethtool test results, or %NULL 201 * @test: Pointer to test result (used only if data != %NULL) 202 * @unit_format: Unit name format (e.g. "chan\%d") 203 * @unit_id: Unit id (e.g. 0 for "chan0") 204 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent") 205 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent") 206 * 207 * Fill in an individual self-test entry. 208 */ 209 static void ef4_fill_test(unsigned int test_index, u8 *strings, u64 *data, 210 int *test, const char *unit_format, int unit_id, 211 const char *test_format, const char *test_id) 212 { 213 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN]; 214 215 /* Fill data value, if applicable */ 216 if (data) 217 data[test_index] = *test; 218 219 /* Fill string, if applicable */ 220 if (strings) { 221 if (strchr(unit_format, '%')) 222 snprintf(unit_str, sizeof(unit_str), 223 unit_format, unit_id); 224 else 225 strcpy(unit_str, unit_format); 226 snprintf(test_str, sizeof(test_str), test_format, test_id); 227 snprintf(strings + test_index * ETH_GSTRING_LEN, 228 ETH_GSTRING_LEN, 229 "%-6s %-24s", unit_str, test_str); 230 } 231 } 232 233 #define EF4_CHANNEL_NAME(_channel) "chan%d", _channel->channel 234 #define EF4_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue 235 #define EF4_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue 236 #define EF4_LOOPBACK_NAME(_mode, _counter) \ 237 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, ef4_loopback_mode) 238 239 /** 240 * ef4_fill_loopback_test - fill in a block of loopback self-test entries 241 * @efx: Efx NIC 242 * @lb_tests: Efx loopback self-test results structure 243 * @mode: Loopback test mode 244 * @test_index: Starting index of the test 245 * @strings: Ethtool strings, or %NULL 246 * @data: Ethtool test results, or %NULL 247 * 248 * Fill in a block of loopback self-test entries. Return new test 249 * index. 250 */ 251 static int ef4_fill_loopback_test(struct ef4_nic *efx, 252 struct ef4_loopback_self_tests *lb_tests, 253 enum ef4_loopback_mode mode, 254 unsigned int test_index, 255 u8 *strings, u64 *data) 256 { 257 struct ef4_channel *channel = 258 ef4_get_channel(efx, efx->tx_channel_offset); 259 struct ef4_tx_queue *tx_queue; 260 261 ef4_for_each_channel_tx_queue(tx_queue, channel) { 262 ef4_fill_test(test_index++, strings, data, 263 &lb_tests->tx_sent[tx_queue->queue], 264 EF4_TX_QUEUE_NAME(tx_queue), 265 EF4_LOOPBACK_NAME(mode, "tx_sent")); 266 ef4_fill_test(test_index++, strings, data, 267 &lb_tests->tx_done[tx_queue->queue], 268 EF4_TX_QUEUE_NAME(tx_queue), 269 EF4_LOOPBACK_NAME(mode, "tx_done")); 270 } 271 ef4_fill_test(test_index++, strings, data, 272 &lb_tests->rx_good, 273 "rx", 0, 274 EF4_LOOPBACK_NAME(mode, "rx_good")); 275 ef4_fill_test(test_index++, strings, data, 276 &lb_tests->rx_bad, 277 "rx", 0, 278 EF4_LOOPBACK_NAME(mode, "rx_bad")); 279 280 return test_index; 281 } 282 283 /** 284 * ef4_ethtool_fill_self_tests - get self-test details 285 * @efx: Efx NIC 286 * @tests: Efx self-test results structure, or %NULL 287 * @strings: Ethtool strings, or %NULL 288 * @data: Ethtool test results, or %NULL 289 * 290 * Get self-test number of strings, strings, and/or test results. 291 * Return number of strings (== number of test results). 292 * 293 * The reason for merging these three functions is to make sure that 294 * they can never be inconsistent. 295 */ 296 static int ef4_ethtool_fill_self_tests(struct ef4_nic *efx, 297 struct ef4_self_tests *tests, 298 u8 *strings, u64 *data) 299 { 300 struct ef4_channel *channel; 301 unsigned int n = 0, i; 302 enum ef4_loopback_mode mode; 303 304 ef4_fill_test(n++, strings, data, &tests->phy_alive, 305 "phy", 0, "alive", NULL); 306 ef4_fill_test(n++, strings, data, &tests->nvram, 307 "core", 0, "nvram", NULL); 308 ef4_fill_test(n++, strings, data, &tests->interrupt, 309 "core", 0, "interrupt", NULL); 310 311 /* Event queues */ 312 ef4_for_each_channel(channel, efx) { 313 ef4_fill_test(n++, strings, data, 314 &tests->eventq_dma[channel->channel], 315 EF4_CHANNEL_NAME(channel), 316 "eventq.dma", NULL); 317 ef4_fill_test(n++, strings, data, 318 &tests->eventq_int[channel->channel], 319 EF4_CHANNEL_NAME(channel), 320 "eventq.int", NULL); 321 } 322 323 ef4_fill_test(n++, strings, data, &tests->memory, 324 "core", 0, "memory", NULL); 325 ef4_fill_test(n++, strings, data, &tests->registers, 326 "core", 0, "registers", NULL); 327 328 if (efx->phy_op->run_tests != NULL) { 329 EF4_BUG_ON_PARANOID(efx->phy_op->test_name == NULL); 330 331 for (i = 0; true; ++i) { 332 const char *name; 333 334 EF4_BUG_ON_PARANOID(i >= EF4_MAX_PHY_TESTS); 335 name = efx->phy_op->test_name(efx, i); 336 if (name == NULL) 337 break; 338 339 ef4_fill_test(n++, strings, data, &tests->phy_ext[i], 340 "phy", 0, name, NULL); 341 } 342 } 343 344 /* Loopback tests */ 345 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) { 346 if (!(efx->loopback_modes & (1 << mode))) 347 continue; 348 n = ef4_fill_loopback_test(efx, 349 &tests->loopback[mode], mode, n, 350 strings, data); 351 } 352 353 return n; 354 } 355 356 static size_t ef4_describe_per_queue_stats(struct ef4_nic *efx, u8 *strings) 357 { 358 size_t n_stats = 0; 359 struct ef4_channel *channel; 360 361 ef4_for_each_channel(channel, efx) { 362 if (ef4_channel_has_tx_queues(channel)) { 363 n_stats++; 364 if (strings != NULL) { 365 snprintf(strings, ETH_GSTRING_LEN, 366 "tx-%u.tx_packets", 367 channel->tx_queue[0].queue / 368 EF4_TXQ_TYPES); 369 370 strings += ETH_GSTRING_LEN; 371 } 372 } 373 } 374 ef4_for_each_channel(channel, efx) { 375 if (ef4_channel_has_rx_queue(channel)) { 376 n_stats++; 377 if (strings != NULL) { 378 snprintf(strings, ETH_GSTRING_LEN, 379 "rx-%d.rx_packets", channel->channel); 380 strings += ETH_GSTRING_LEN; 381 } 382 } 383 } 384 return n_stats; 385 } 386 387 static int ef4_ethtool_get_sset_count(struct net_device *net_dev, 388 int string_set) 389 { 390 struct ef4_nic *efx = netdev_priv(net_dev); 391 392 switch (string_set) { 393 case ETH_SS_STATS: 394 return efx->type->describe_stats(efx, NULL) + 395 EF4_ETHTOOL_SW_STAT_COUNT + 396 ef4_describe_per_queue_stats(efx, NULL); 397 case ETH_SS_TEST: 398 return ef4_ethtool_fill_self_tests(efx, NULL, NULL, NULL); 399 default: 400 return -EINVAL; 401 } 402 } 403 404 static void ef4_ethtool_get_strings(struct net_device *net_dev, 405 u32 string_set, u8 *strings) 406 { 407 struct ef4_nic *efx = netdev_priv(net_dev); 408 int i; 409 410 switch (string_set) { 411 case ETH_SS_STATS: 412 strings += (efx->type->describe_stats(efx, strings) * 413 ETH_GSTRING_LEN); 414 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++) 415 strlcpy(strings + i * ETH_GSTRING_LEN, 416 ef4_sw_stat_desc[i].name, ETH_GSTRING_LEN); 417 strings += EF4_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN; 418 strings += (ef4_describe_per_queue_stats(efx, strings) * 419 ETH_GSTRING_LEN); 420 break; 421 case ETH_SS_TEST: 422 ef4_ethtool_fill_self_tests(efx, NULL, strings, NULL); 423 break; 424 default: 425 /* No other string sets */ 426 break; 427 } 428 } 429 430 static void ef4_ethtool_get_stats(struct net_device *net_dev, 431 struct ethtool_stats *stats, 432 u64 *data) 433 { 434 struct ef4_nic *efx = netdev_priv(net_dev); 435 const struct ef4_sw_stat_desc *stat; 436 struct ef4_channel *channel; 437 struct ef4_tx_queue *tx_queue; 438 struct ef4_rx_queue *rx_queue; 439 int i; 440 441 spin_lock_bh(&efx->stats_lock); 442 443 /* Get NIC statistics */ 444 data += efx->type->update_stats(efx, data, NULL); 445 446 /* Get software statistics */ 447 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++) { 448 stat = &ef4_sw_stat_desc[i]; 449 switch (stat->source) { 450 case EF4_ETHTOOL_STAT_SOURCE_nic: 451 data[i] = stat->get_stat((void *)efx + stat->offset); 452 break; 453 case EF4_ETHTOOL_STAT_SOURCE_channel: 454 data[i] = 0; 455 ef4_for_each_channel(channel, efx) 456 data[i] += stat->get_stat((void *)channel + 457 stat->offset); 458 break; 459 case EF4_ETHTOOL_STAT_SOURCE_tx_queue: 460 data[i] = 0; 461 ef4_for_each_channel(channel, efx) { 462 ef4_for_each_channel_tx_queue(tx_queue, channel) 463 data[i] += 464 stat->get_stat((void *)tx_queue 465 + stat->offset); 466 } 467 break; 468 } 469 } 470 data += EF4_ETHTOOL_SW_STAT_COUNT; 471 472 spin_unlock_bh(&efx->stats_lock); 473 474 ef4_for_each_channel(channel, efx) { 475 if (ef4_channel_has_tx_queues(channel)) { 476 *data = 0; 477 ef4_for_each_channel_tx_queue(tx_queue, channel) { 478 *data += tx_queue->tx_packets; 479 } 480 data++; 481 } 482 } 483 ef4_for_each_channel(channel, efx) { 484 if (ef4_channel_has_rx_queue(channel)) { 485 *data = 0; 486 ef4_for_each_channel_rx_queue(rx_queue, channel) { 487 *data += rx_queue->rx_packets; 488 } 489 data++; 490 } 491 } 492 } 493 494 static void ef4_ethtool_self_test(struct net_device *net_dev, 495 struct ethtool_test *test, u64 *data) 496 { 497 struct ef4_nic *efx = netdev_priv(net_dev); 498 struct ef4_self_tests *ef4_tests; 499 bool already_up; 500 int rc = -ENOMEM; 501 502 ef4_tests = kzalloc(sizeof(*ef4_tests), GFP_KERNEL); 503 if (!ef4_tests) 504 goto fail; 505 506 if (efx->state != STATE_READY) { 507 rc = -EBUSY; 508 goto out; 509 } 510 511 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n", 512 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 513 514 /* We need rx buffers and interrupts. */ 515 already_up = (efx->net_dev->flags & IFF_UP); 516 if (!already_up) { 517 rc = dev_open(efx->net_dev); 518 if (rc) { 519 netif_err(efx, drv, efx->net_dev, 520 "failed opening device.\n"); 521 goto out; 522 } 523 } 524 525 rc = ef4_selftest(efx, ef4_tests, test->flags); 526 527 if (!already_up) 528 dev_close(efx->net_dev); 529 530 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n", 531 rc == 0 ? "passed" : "failed", 532 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 533 534 out: 535 ef4_ethtool_fill_self_tests(efx, ef4_tests, NULL, data); 536 kfree(ef4_tests); 537 fail: 538 if (rc) 539 test->flags |= ETH_TEST_FL_FAILED; 540 } 541 542 /* Restart autonegotiation */ 543 static int ef4_ethtool_nway_reset(struct net_device *net_dev) 544 { 545 struct ef4_nic *efx = netdev_priv(net_dev); 546 547 return mdio45_nway_restart(&efx->mdio); 548 } 549 550 /* 551 * Each channel has a single IRQ and moderation timer, started by any 552 * completion (or other event). Unless the module parameter 553 * separate_tx_channels is set, IRQs and moderation are therefore 554 * shared between RX and TX completions. In this case, when RX IRQ 555 * moderation is explicitly changed then TX IRQ moderation is 556 * automatically changed too, but otherwise we fail if the two values 557 * are requested to be different. 558 * 559 * The hardware does not support a limit on the number of completions 560 * before an IRQ, so we do not use the max_frames fields. We should 561 * report and require that max_frames == (usecs != 0), but this would 562 * invalidate existing user documentation. 563 * 564 * The hardware does not have distinct settings for interrupt 565 * moderation while the previous IRQ is being handled, so we should 566 * not use the 'irq' fields. However, an earlier developer 567 * misunderstood the meaning of the 'irq' fields and the driver did 568 * not support the standard fields. To avoid invalidating existing 569 * user documentation, we report and accept changes through either the 570 * standard or 'irq' fields. If both are changed at the same time, we 571 * prefer the standard field. 572 * 573 * We implement adaptive IRQ moderation, but use a different algorithm 574 * from that assumed in the definition of struct ethtool_coalesce. 575 * Therefore we do not use any of the adaptive moderation parameters 576 * in it. 577 */ 578 579 static int ef4_ethtool_get_coalesce(struct net_device *net_dev, 580 struct ethtool_coalesce *coalesce) 581 { 582 struct ef4_nic *efx = netdev_priv(net_dev); 583 unsigned int tx_usecs, rx_usecs; 584 bool rx_adaptive; 585 586 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive); 587 588 coalesce->tx_coalesce_usecs = tx_usecs; 589 coalesce->tx_coalesce_usecs_irq = tx_usecs; 590 coalesce->rx_coalesce_usecs = rx_usecs; 591 coalesce->rx_coalesce_usecs_irq = rx_usecs; 592 coalesce->use_adaptive_rx_coalesce = rx_adaptive; 593 594 return 0; 595 } 596 597 static int ef4_ethtool_set_coalesce(struct net_device *net_dev, 598 struct ethtool_coalesce *coalesce) 599 { 600 struct ef4_nic *efx = netdev_priv(net_dev); 601 struct ef4_channel *channel; 602 unsigned int tx_usecs, rx_usecs; 603 bool adaptive, rx_may_override_tx; 604 int rc; 605 606 if (coalesce->use_adaptive_tx_coalesce) 607 return -EINVAL; 608 609 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive); 610 611 if (coalesce->rx_coalesce_usecs != rx_usecs) 612 rx_usecs = coalesce->rx_coalesce_usecs; 613 else 614 rx_usecs = coalesce->rx_coalesce_usecs_irq; 615 616 adaptive = coalesce->use_adaptive_rx_coalesce; 617 618 /* If channels are shared, TX IRQ moderation can be quietly 619 * overridden unless it is changed from its old value. 620 */ 621 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs && 622 coalesce->tx_coalesce_usecs_irq == tx_usecs); 623 if (coalesce->tx_coalesce_usecs != tx_usecs) 624 tx_usecs = coalesce->tx_coalesce_usecs; 625 else 626 tx_usecs = coalesce->tx_coalesce_usecs_irq; 627 628 rc = ef4_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive, 629 rx_may_override_tx); 630 if (rc != 0) 631 return rc; 632 633 ef4_for_each_channel(channel, efx) 634 efx->type->push_irq_moderation(channel); 635 636 return 0; 637 } 638 639 static void ef4_ethtool_get_ringparam(struct net_device *net_dev, 640 struct ethtool_ringparam *ring) 641 { 642 struct ef4_nic *efx = netdev_priv(net_dev); 643 644 ring->rx_max_pending = EF4_MAX_DMAQ_SIZE; 645 ring->tx_max_pending = EF4_MAX_DMAQ_SIZE; 646 ring->rx_pending = efx->rxq_entries; 647 ring->tx_pending = efx->txq_entries; 648 } 649 650 static int ef4_ethtool_set_ringparam(struct net_device *net_dev, 651 struct ethtool_ringparam *ring) 652 { 653 struct ef4_nic *efx = netdev_priv(net_dev); 654 u32 txq_entries; 655 656 if (ring->rx_mini_pending || ring->rx_jumbo_pending || 657 ring->rx_pending > EF4_MAX_DMAQ_SIZE || 658 ring->tx_pending > EF4_MAX_DMAQ_SIZE) 659 return -EINVAL; 660 661 if (ring->rx_pending < EF4_RXQ_MIN_ENT) { 662 netif_err(efx, drv, efx->net_dev, 663 "RX queues cannot be smaller than %u\n", 664 EF4_RXQ_MIN_ENT); 665 return -EINVAL; 666 } 667 668 txq_entries = max(ring->tx_pending, EF4_TXQ_MIN_ENT(efx)); 669 if (txq_entries != ring->tx_pending) 670 netif_warn(efx, drv, efx->net_dev, 671 "increasing TX queue size to minimum of %u\n", 672 txq_entries); 673 674 return ef4_realloc_channels(efx, ring->rx_pending, txq_entries); 675 } 676 677 static int ef4_ethtool_set_pauseparam(struct net_device *net_dev, 678 struct ethtool_pauseparam *pause) 679 { 680 struct ef4_nic *efx = netdev_priv(net_dev); 681 u8 wanted_fc, old_fc; 682 u32 old_adv; 683 int rc = 0; 684 685 mutex_lock(&efx->mac_lock); 686 687 wanted_fc = ((pause->rx_pause ? EF4_FC_RX : 0) | 688 (pause->tx_pause ? EF4_FC_TX : 0) | 689 (pause->autoneg ? EF4_FC_AUTO : 0)); 690 691 if ((wanted_fc & EF4_FC_TX) && !(wanted_fc & EF4_FC_RX)) { 692 netif_dbg(efx, drv, efx->net_dev, 693 "Flow control unsupported: tx ON rx OFF\n"); 694 rc = -EINVAL; 695 goto out; 696 } 697 698 if ((wanted_fc & EF4_FC_AUTO) && !efx->link_advertising) { 699 netif_dbg(efx, drv, efx->net_dev, 700 "Autonegotiation is disabled\n"); 701 rc = -EINVAL; 702 goto out; 703 } 704 705 /* Hook for Falcon bug 11482 workaround */ 706 if (efx->type->prepare_enable_fc_tx && 707 (wanted_fc & EF4_FC_TX) && !(efx->wanted_fc & EF4_FC_TX)) 708 efx->type->prepare_enable_fc_tx(efx); 709 710 old_adv = efx->link_advertising; 711 old_fc = efx->wanted_fc; 712 ef4_link_set_wanted_fc(efx, wanted_fc); 713 if (efx->link_advertising != old_adv || 714 (efx->wanted_fc ^ old_fc) & EF4_FC_AUTO) { 715 rc = efx->phy_op->reconfigure(efx); 716 if (rc) { 717 netif_err(efx, drv, efx->net_dev, 718 "Unable to advertise requested flow " 719 "control setting\n"); 720 goto out; 721 } 722 } 723 724 /* Reconfigure the MAC. The PHY *may* generate a link state change event 725 * if the user just changed the advertised capabilities, but there's no 726 * harm doing this twice */ 727 ef4_mac_reconfigure(efx); 728 729 out: 730 mutex_unlock(&efx->mac_lock); 731 732 return rc; 733 } 734 735 static void ef4_ethtool_get_pauseparam(struct net_device *net_dev, 736 struct ethtool_pauseparam *pause) 737 { 738 struct ef4_nic *efx = netdev_priv(net_dev); 739 740 pause->rx_pause = !!(efx->wanted_fc & EF4_FC_RX); 741 pause->tx_pause = !!(efx->wanted_fc & EF4_FC_TX); 742 pause->autoneg = !!(efx->wanted_fc & EF4_FC_AUTO); 743 } 744 745 static void ef4_ethtool_get_wol(struct net_device *net_dev, 746 struct ethtool_wolinfo *wol) 747 { 748 struct ef4_nic *efx = netdev_priv(net_dev); 749 return efx->type->get_wol(efx, wol); 750 } 751 752 753 static int ef4_ethtool_set_wol(struct net_device *net_dev, 754 struct ethtool_wolinfo *wol) 755 { 756 struct ef4_nic *efx = netdev_priv(net_dev); 757 return efx->type->set_wol(efx, wol->wolopts); 758 } 759 760 static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags) 761 { 762 struct ef4_nic *efx = netdev_priv(net_dev); 763 int rc; 764 765 rc = efx->type->map_reset_flags(flags); 766 if (rc < 0) 767 return rc; 768 769 return ef4_reset(efx, rc); 770 } 771 772 /* MAC address mask including only I/G bit */ 773 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; 774 775 #define IP4_ADDR_FULL_MASK ((__force __be32)~0) 776 #define IP_PROTO_FULL_MASK 0xFF 777 #define PORT_FULL_MASK ((__force __be16)~0) 778 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 779 780 static inline void ip6_fill_mask(__be32 *mask) 781 { 782 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0; 783 } 784 785 static int ef4_ethtool_get_class_rule(struct ef4_nic *efx, 786 struct ethtool_rx_flow_spec *rule) 787 { 788 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 789 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 790 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 791 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 792 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 793 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 794 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 795 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 796 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 797 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 798 struct ef4_filter_spec spec; 799 int rc; 800 801 rc = ef4_filter_get_filter_safe(efx, EF4_FILTER_PRI_MANUAL, 802 rule->location, &spec); 803 if (rc) 804 return rc; 805 806 if (spec.dmaq_id == EF4_FILTER_RX_DMAQ_ID_DROP) 807 rule->ring_cookie = RX_CLS_FLOW_DISC; 808 else 809 rule->ring_cookie = spec.dmaq_id; 810 811 if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) && 812 spec.ether_type == htons(ETH_P_IP) && 813 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) && 814 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 815 !(spec.match_flags & 816 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | 817 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | 818 EF4_FILTER_MATCH_IP_PROTO | 819 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) { 820 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 821 TCP_V4_FLOW : UDP_V4_FLOW); 822 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { 823 ip_entry->ip4dst = spec.loc_host[0]; 824 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 825 } 826 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { 827 ip_entry->ip4src = spec.rem_host[0]; 828 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 829 } 830 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) { 831 ip_entry->pdst = spec.loc_port; 832 ip_mask->pdst = PORT_FULL_MASK; 833 } 834 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) { 835 ip_entry->psrc = spec.rem_port; 836 ip_mask->psrc = PORT_FULL_MASK; 837 } 838 } else if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) && 839 spec.ether_type == htons(ETH_P_IPV6) && 840 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) && 841 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 842 !(spec.match_flags & 843 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | 844 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | 845 EF4_FILTER_MATCH_IP_PROTO | 846 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) { 847 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 848 TCP_V6_FLOW : UDP_V6_FLOW); 849 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { 850 memcpy(ip6_entry->ip6dst, spec.loc_host, 851 sizeof(ip6_entry->ip6dst)); 852 ip6_fill_mask(ip6_mask->ip6dst); 853 } 854 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { 855 memcpy(ip6_entry->ip6src, spec.rem_host, 856 sizeof(ip6_entry->ip6src)); 857 ip6_fill_mask(ip6_mask->ip6src); 858 } 859 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) { 860 ip6_entry->pdst = spec.loc_port; 861 ip6_mask->pdst = PORT_FULL_MASK; 862 } 863 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) { 864 ip6_entry->psrc = spec.rem_port; 865 ip6_mask->psrc = PORT_FULL_MASK; 866 } 867 } else if (!(spec.match_flags & 868 ~(EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG | 869 EF4_FILTER_MATCH_REM_MAC | EF4_FILTER_MATCH_ETHER_TYPE | 870 EF4_FILTER_MATCH_OUTER_VID))) { 871 rule->flow_type = ETHER_FLOW; 872 if (spec.match_flags & 873 (EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG)) { 874 ether_addr_copy(mac_entry->h_dest, spec.loc_mac); 875 if (spec.match_flags & EF4_FILTER_MATCH_LOC_MAC) 876 eth_broadcast_addr(mac_mask->h_dest); 877 else 878 ether_addr_copy(mac_mask->h_dest, 879 mac_addr_ig_mask); 880 } 881 if (spec.match_flags & EF4_FILTER_MATCH_REM_MAC) { 882 ether_addr_copy(mac_entry->h_source, spec.rem_mac); 883 eth_broadcast_addr(mac_mask->h_source); 884 } 885 if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) { 886 mac_entry->h_proto = spec.ether_type; 887 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 888 } 889 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE && 890 spec.ether_type == htons(ETH_P_IP) && 891 !(spec.match_flags & 892 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | 893 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | 894 EF4_FILTER_MATCH_IP_PROTO))) { 895 rule->flow_type = IPV4_USER_FLOW; 896 uip_entry->ip_ver = ETH_RX_NFC_IP4; 897 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) { 898 uip_mask->proto = IP_PROTO_FULL_MASK; 899 uip_entry->proto = spec.ip_proto; 900 } 901 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { 902 uip_entry->ip4dst = spec.loc_host[0]; 903 uip_mask->ip4dst = IP4_ADDR_FULL_MASK; 904 } 905 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { 906 uip_entry->ip4src = spec.rem_host[0]; 907 uip_mask->ip4src = IP4_ADDR_FULL_MASK; 908 } 909 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE && 910 spec.ether_type == htons(ETH_P_IPV6) && 911 !(spec.match_flags & 912 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | 913 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | 914 EF4_FILTER_MATCH_IP_PROTO))) { 915 rule->flow_type = IPV6_USER_FLOW; 916 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) { 917 uip6_mask->l4_proto = IP_PROTO_FULL_MASK; 918 uip6_entry->l4_proto = spec.ip_proto; 919 } 920 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { 921 memcpy(uip6_entry->ip6dst, spec.loc_host, 922 sizeof(uip6_entry->ip6dst)); 923 ip6_fill_mask(uip6_mask->ip6dst); 924 } 925 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { 926 memcpy(uip6_entry->ip6src, spec.rem_host, 927 sizeof(uip6_entry->ip6src)); 928 ip6_fill_mask(uip6_mask->ip6src); 929 } 930 } else { 931 /* The above should handle all filters that we insert */ 932 WARN_ON(1); 933 return -EINVAL; 934 } 935 936 if (spec.match_flags & EF4_FILTER_MATCH_OUTER_VID) { 937 rule->flow_type |= FLOW_EXT; 938 rule->h_ext.vlan_tci = spec.outer_vid; 939 rule->m_ext.vlan_tci = htons(0xfff); 940 } 941 942 return rc; 943 } 944 945 static int 946 ef4_ethtool_get_rxnfc(struct net_device *net_dev, 947 struct ethtool_rxnfc *info, u32 *rule_locs) 948 { 949 struct ef4_nic *efx = netdev_priv(net_dev); 950 951 switch (info->cmd) { 952 case ETHTOOL_GRXRINGS: 953 info->data = efx->n_rx_channels; 954 return 0; 955 956 case ETHTOOL_GRXFH: { 957 unsigned min_revision = 0; 958 959 info->data = 0; 960 switch (info->flow_type) { 961 case TCP_V4_FLOW: 962 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 963 case UDP_V4_FLOW: 964 case SCTP_V4_FLOW: 965 case AH_ESP_V4_FLOW: 966 case IPV4_FLOW: 967 info->data |= RXH_IP_SRC | RXH_IP_DST; 968 min_revision = EF4_REV_FALCON_B0; 969 break; 970 default: 971 break; 972 } 973 if (ef4_nic_rev(efx) < min_revision) 974 info->data = 0; 975 return 0; 976 } 977 978 case ETHTOOL_GRXCLSRLCNT: 979 info->data = ef4_filter_get_rx_id_limit(efx); 980 if (info->data == 0) 981 return -EOPNOTSUPP; 982 info->data |= RX_CLS_LOC_SPECIAL; 983 info->rule_cnt = 984 ef4_filter_count_rx_used(efx, EF4_FILTER_PRI_MANUAL); 985 return 0; 986 987 case ETHTOOL_GRXCLSRULE: 988 if (ef4_filter_get_rx_id_limit(efx) == 0) 989 return -EOPNOTSUPP; 990 return ef4_ethtool_get_class_rule(efx, &info->fs); 991 992 case ETHTOOL_GRXCLSRLALL: { 993 s32 rc; 994 info->data = ef4_filter_get_rx_id_limit(efx); 995 if (info->data == 0) 996 return -EOPNOTSUPP; 997 rc = ef4_filter_get_rx_ids(efx, EF4_FILTER_PRI_MANUAL, 998 rule_locs, info->rule_cnt); 999 if (rc < 0) 1000 return rc; 1001 info->rule_cnt = rc; 1002 return 0; 1003 } 1004 1005 default: 1006 return -EOPNOTSUPP; 1007 } 1008 } 1009 1010 static inline bool ip6_mask_is_full(__be32 mask[4]) 1011 { 1012 return !~(mask[0] & mask[1] & mask[2] & mask[3]); 1013 } 1014 1015 static inline bool ip6_mask_is_empty(__be32 mask[4]) 1016 { 1017 return !(mask[0] | mask[1] | mask[2] | mask[3]); 1018 } 1019 1020 static int ef4_ethtool_set_class_rule(struct ef4_nic *efx, 1021 struct ethtool_rx_flow_spec *rule) 1022 { 1023 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 1024 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 1025 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 1026 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 1027 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 1028 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 1029 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 1030 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 1031 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 1032 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 1033 struct ef4_filter_spec spec; 1034 int rc; 1035 1036 /* Check that user wants us to choose the location */ 1037 if (rule->location != RX_CLS_LOC_ANY) 1038 return -EINVAL; 1039 1040 /* Range-check ring_cookie */ 1041 if (rule->ring_cookie >= efx->n_rx_channels && 1042 rule->ring_cookie != RX_CLS_FLOW_DISC) 1043 return -EINVAL; 1044 1045 /* Check for unsupported extensions */ 1046 if ((rule->flow_type & FLOW_EXT) && 1047 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 1048 rule->m_ext.data[1])) 1049 return -EINVAL; 1050 1051 ef4_filter_init_rx(&spec, EF4_FILTER_PRI_MANUAL, 1052 efx->rx_scatter ? EF4_FILTER_FLAG_RX_SCATTER : 0, 1053 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 1054 EF4_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 1055 1056 switch (rule->flow_type & ~FLOW_EXT) { 1057 case TCP_V4_FLOW: 1058 case UDP_V4_FLOW: 1059 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE | 1060 EF4_FILTER_MATCH_IP_PROTO); 1061 spec.ether_type = htons(ETH_P_IP); 1062 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ? 1063 IPPROTO_TCP : IPPROTO_UDP); 1064 if (ip_mask->ip4dst) { 1065 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1066 return -EINVAL; 1067 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; 1068 spec.loc_host[0] = ip_entry->ip4dst; 1069 } 1070 if (ip_mask->ip4src) { 1071 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 1072 return -EINVAL; 1073 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; 1074 spec.rem_host[0] = ip_entry->ip4src; 1075 } 1076 if (ip_mask->pdst) { 1077 if (ip_mask->pdst != PORT_FULL_MASK) 1078 return -EINVAL; 1079 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT; 1080 spec.loc_port = ip_entry->pdst; 1081 } 1082 if (ip_mask->psrc) { 1083 if (ip_mask->psrc != PORT_FULL_MASK) 1084 return -EINVAL; 1085 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT; 1086 spec.rem_port = ip_entry->psrc; 1087 } 1088 if (ip_mask->tos) 1089 return -EINVAL; 1090 break; 1091 1092 case TCP_V6_FLOW: 1093 case UDP_V6_FLOW: 1094 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE | 1095 EF4_FILTER_MATCH_IP_PROTO); 1096 spec.ether_type = htons(ETH_P_IPV6); 1097 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ? 1098 IPPROTO_TCP : IPPROTO_UDP); 1099 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { 1100 if (!ip6_mask_is_full(ip6_mask->ip6dst)) 1101 return -EINVAL; 1102 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; 1103 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host)); 1104 } 1105 if (!ip6_mask_is_empty(ip6_mask->ip6src)) { 1106 if (!ip6_mask_is_full(ip6_mask->ip6src)) 1107 return -EINVAL; 1108 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; 1109 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host)); 1110 } 1111 if (ip6_mask->pdst) { 1112 if (ip6_mask->pdst != PORT_FULL_MASK) 1113 return -EINVAL; 1114 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT; 1115 spec.loc_port = ip6_entry->pdst; 1116 } 1117 if (ip6_mask->psrc) { 1118 if (ip6_mask->psrc != PORT_FULL_MASK) 1119 return -EINVAL; 1120 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT; 1121 spec.rem_port = ip6_entry->psrc; 1122 } 1123 if (ip6_mask->tclass) 1124 return -EINVAL; 1125 break; 1126 1127 case IPV4_USER_FLOW: 1128 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver || 1129 uip_entry->ip_ver != ETH_RX_NFC_IP4) 1130 return -EINVAL; 1131 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE; 1132 spec.ether_type = htons(ETH_P_IP); 1133 if (uip_mask->ip4dst) { 1134 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1135 return -EINVAL; 1136 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; 1137 spec.loc_host[0] = uip_entry->ip4dst; 1138 } 1139 if (uip_mask->ip4src) { 1140 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK) 1141 return -EINVAL; 1142 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; 1143 spec.rem_host[0] = uip_entry->ip4src; 1144 } 1145 if (uip_mask->proto) { 1146 if (uip_mask->proto != IP_PROTO_FULL_MASK) 1147 return -EINVAL; 1148 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO; 1149 spec.ip_proto = uip_entry->proto; 1150 } 1151 break; 1152 1153 case IPV6_USER_FLOW: 1154 if (uip6_mask->l4_4_bytes || uip6_mask->tclass) 1155 return -EINVAL; 1156 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE; 1157 spec.ether_type = htons(ETH_P_IPV6); 1158 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) { 1159 if (!ip6_mask_is_full(uip6_mask->ip6dst)) 1160 return -EINVAL; 1161 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; 1162 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host)); 1163 } 1164 if (!ip6_mask_is_empty(uip6_mask->ip6src)) { 1165 if (!ip6_mask_is_full(uip6_mask->ip6src)) 1166 return -EINVAL; 1167 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; 1168 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host)); 1169 } 1170 if (uip6_mask->l4_proto) { 1171 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK) 1172 return -EINVAL; 1173 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO; 1174 spec.ip_proto = uip6_entry->l4_proto; 1175 } 1176 break; 1177 1178 case ETHER_FLOW: 1179 if (!is_zero_ether_addr(mac_mask->h_dest)) { 1180 if (ether_addr_equal(mac_mask->h_dest, 1181 mac_addr_ig_mask)) 1182 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC_IG; 1183 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 1184 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC; 1185 else 1186 return -EINVAL; 1187 ether_addr_copy(spec.loc_mac, mac_entry->h_dest); 1188 } 1189 if (!is_zero_ether_addr(mac_mask->h_source)) { 1190 if (!is_broadcast_ether_addr(mac_mask->h_source)) 1191 return -EINVAL; 1192 spec.match_flags |= EF4_FILTER_MATCH_REM_MAC; 1193 ether_addr_copy(spec.rem_mac, mac_entry->h_source); 1194 } 1195 if (mac_mask->h_proto) { 1196 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 1197 return -EINVAL; 1198 spec.match_flags |= EF4_FILTER_MATCH_ETHER_TYPE; 1199 spec.ether_type = mac_entry->h_proto; 1200 } 1201 break; 1202 1203 default: 1204 return -EINVAL; 1205 } 1206 1207 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 1208 if (rule->m_ext.vlan_tci != htons(0xfff)) 1209 return -EINVAL; 1210 spec.match_flags |= EF4_FILTER_MATCH_OUTER_VID; 1211 spec.outer_vid = rule->h_ext.vlan_tci; 1212 } 1213 1214 rc = ef4_filter_insert_filter(efx, &spec, true); 1215 if (rc < 0) 1216 return rc; 1217 1218 rule->location = rc; 1219 return 0; 1220 } 1221 1222 static int ef4_ethtool_set_rxnfc(struct net_device *net_dev, 1223 struct ethtool_rxnfc *info) 1224 { 1225 struct ef4_nic *efx = netdev_priv(net_dev); 1226 1227 if (ef4_filter_get_rx_id_limit(efx) == 0) 1228 return -EOPNOTSUPP; 1229 1230 switch (info->cmd) { 1231 case ETHTOOL_SRXCLSRLINS: 1232 return ef4_ethtool_set_class_rule(efx, &info->fs); 1233 1234 case ETHTOOL_SRXCLSRLDEL: 1235 return ef4_filter_remove_id_safe(efx, EF4_FILTER_PRI_MANUAL, 1236 info->fs.location); 1237 1238 default: 1239 return -EOPNOTSUPP; 1240 } 1241 } 1242 1243 static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1244 { 1245 struct ef4_nic *efx = netdev_priv(net_dev); 1246 1247 return ((ef4_nic_rev(efx) < EF4_REV_FALCON_B0 || 1248 efx->n_rx_channels == 1) ? 1249 0 : ARRAY_SIZE(efx->rx_indir_table)); 1250 } 1251 1252 static int ef4_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key, 1253 u8 *hfunc) 1254 { 1255 struct ef4_nic *efx = netdev_priv(net_dev); 1256 1257 if (hfunc) 1258 *hfunc = ETH_RSS_HASH_TOP; 1259 if (indir) 1260 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table)); 1261 return 0; 1262 } 1263 1264 static int ef4_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir, 1265 const u8 *key, const u8 hfunc) 1266 { 1267 struct ef4_nic *efx = netdev_priv(net_dev); 1268 1269 /* We do not allow change in unsupported parameters */ 1270 if (key || 1271 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1272 return -EOPNOTSUPP; 1273 if (!indir) 1274 return 0; 1275 1276 return efx->type->rx_push_rss_config(efx, true, indir); 1277 } 1278 1279 static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev, 1280 struct ethtool_eeprom *ee, 1281 u8 *data) 1282 { 1283 struct ef4_nic *efx = netdev_priv(net_dev); 1284 int ret; 1285 1286 if (!efx->phy_op || !efx->phy_op->get_module_eeprom) 1287 return -EOPNOTSUPP; 1288 1289 mutex_lock(&efx->mac_lock); 1290 ret = efx->phy_op->get_module_eeprom(efx, ee, data); 1291 mutex_unlock(&efx->mac_lock); 1292 1293 return ret; 1294 } 1295 1296 static int ef4_ethtool_get_module_info(struct net_device *net_dev, 1297 struct ethtool_modinfo *modinfo) 1298 { 1299 struct ef4_nic *efx = netdev_priv(net_dev); 1300 int ret; 1301 1302 if (!efx->phy_op || !efx->phy_op->get_module_info) 1303 return -EOPNOTSUPP; 1304 1305 mutex_lock(&efx->mac_lock); 1306 ret = efx->phy_op->get_module_info(efx, modinfo); 1307 mutex_unlock(&efx->mac_lock); 1308 1309 return ret; 1310 } 1311 1312 const struct ethtool_ops ef4_ethtool_ops = { 1313 .get_settings = ef4_ethtool_get_settings, 1314 .set_settings = ef4_ethtool_set_settings, 1315 .get_drvinfo = ef4_ethtool_get_drvinfo, 1316 .get_regs_len = ef4_ethtool_get_regs_len, 1317 .get_regs = ef4_ethtool_get_regs, 1318 .get_msglevel = ef4_ethtool_get_msglevel, 1319 .set_msglevel = ef4_ethtool_set_msglevel, 1320 .nway_reset = ef4_ethtool_nway_reset, 1321 .get_link = ethtool_op_get_link, 1322 .get_coalesce = ef4_ethtool_get_coalesce, 1323 .set_coalesce = ef4_ethtool_set_coalesce, 1324 .get_ringparam = ef4_ethtool_get_ringparam, 1325 .set_ringparam = ef4_ethtool_set_ringparam, 1326 .get_pauseparam = ef4_ethtool_get_pauseparam, 1327 .set_pauseparam = ef4_ethtool_set_pauseparam, 1328 .get_sset_count = ef4_ethtool_get_sset_count, 1329 .self_test = ef4_ethtool_self_test, 1330 .get_strings = ef4_ethtool_get_strings, 1331 .set_phys_id = ef4_ethtool_phys_id, 1332 .get_ethtool_stats = ef4_ethtool_get_stats, 1333 .get_wol = ef4_ethtool_get_wol, 1334 .set_wol = ef4_ethtool_set_wol, 1335 .reset = ef4_ethtool_reset, 1336 .get_rxnfc = ef4_ethtool_get_rxnfc, 1337 .set_rxnfc = ef4_ethtool_set_rxnfc, 1338 .get_rxfh_indir_size = ef4_ethtool_get_rxfh_indir_size, 1339 .get_rxfh = ef4_ethtool_get_rxfh, 1340 .set_rxfh = ef4_ethtool_set_rxfh, 1341 .get_module_info = ef4_ethtool_get_module_info, 1342 .get_module_eeprom = ef4_ethtool_get_module_eeprom, 1343 }; 1344