1 // SPDX-License-Identifier: GPL-2.0-only 2 /**************************************************************************** 3 * Driver for Solarflare network controllers and boards 4 * Copyright 2005-2006 Fen Systems Ltd. 5 * Copyright 2006-2013 Solarflare Communications Inc. 6 */ 7 8 #include <linux/netdevice.h> 9 #include <linux/ethtool.h> 10 #include <linux/rtnetlink.h> 11 #include <linux/in.h> 12 #include "net_driver.h" 13 #include "workarounds.h" 14 #include "selftest.h" 15 #include "efx.h" 16 #include "filter.h" 17 #include "nic.h" 18 19 struct ef4_sw_stat_desc { 20 const char *name; 21 enum { 22 EF4_ETHTOOL_STAT_SOURCE_nic, 23 EF4_ETHTOOL_STAT_SOURCE_channel, 24 EF4_ETHTOOL_STAT_SOURCE_tx_queue 25 } source; 26 unsigned offset; 27 u64(*get_stat) (void *field); /* Reader function */ 28 }; 29 30 /* Initialiser for a struct ef4_sw_stat_desc with type-checking */ 31 #define EF4_ETHTOOL_STAT(stat_name, source_name, field, field_type, \ 32 get_stat_function) { \ 33 .name = #stat_name, \ 34 .source = EF4_ETHTOOL_STAT_SOURCE_##source_name, \ 35 .offset = ((((field_type *) 0) == \ 36 &((struct ef4_##source_name *)0)->field) ? \ 37 offsetof(struct ef4_##source_name, field) : \ 38 offsetof(struct ef4_##source_name, field)), \ 39 .get_stat = get_stat_function, \ 40 } 41 42 static u64 ef4_get_uint_stat(void *field) 43 { 44 return *(unsigned int *)field; 45 } 46 47 static u64 ef4_get_atomic_stat(void *field) 48 { 49 return atomic_read((atomic_t *) field); 50 } 51 52 #define EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \ 53 EF4_ETHTOOL_STAT(field, nic, field, \ 54 atomic_t, ef4_get_atomic_stat) 55 56 #define EF4_ETHTOOL_UINT_CHANNEL_STAT(field) \ 57 EF4_ETHTOOL_STAT(field, channel, n_##field, \ 58 unsigned int, ef4_get_uint_stat) 59 60 #define EF4_ETHTOOL_UINT_TXQ_STAT(field) \ 61 EF4_ETHTOOL_STAT(tx_##field, tx_queue, field, \ 62 unsigned int, ef4_get_uint_stat) 63 64 static const struct ef4_sw_stat_desc ef4_sw_stat_desc[] = { 65 EF4_ETHTOOL_UINT_TXQ_STAT(merge_events), 66 EF4_ETHTOOL_UINT_TXQ_STAT(pushes), 67 EF4_ETHTOOL_UINT_TXQ_STAT(cb_packets), 68 EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset), 69 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc), 70 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err), 71 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err), 72 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch), 73 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc), 74 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events), 75 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets), 76 }; 77 78 #define EF4_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(ef4_sw_stat_desc) 79 80 #define EF4_ETHTOOL_EEPROM_MAGIC 0xEFAB 81 82 /************************************************************************** 83 * 84 * Ethtool operations 85 * 86 ************************************************************************** 87 */ 88 89 /* Identify device by flashing LEDs */ 90 static int ef4_ethtool_phys_id(struct net_device *net_dev, 91 enum ethtool_phys_id_state state) 92 { 93 struct ef4_nic *efx = netdev_priv(net_dev); 94 enum ef4_led_mode mode = EF4_LED_DEFAULT; 95 96 switch (state) { 97 case ETHTOOL_ID_ON: 98 mode = EF4_LED_ON; 99 break; 100 case ETHTOOL_ID_OFF: 101 mode = EF4_LED_OFF; 102 break; 103 case ETHTOOL_ID_INACTIVE: 104 mode = EF4_LED_DEFAULT; 105 break; 106 case ETHTOOL_ID_ACTIVE: 107 return 1; /* cycle on/off once per second */ 108 } 109 110 efx->type->set_id_led(efx, mode); 111 return 0; 112 } 113 114 /* This must be called with rtnl_lock held. */ 115 static int 116 ef4_ethtool_get_link_ksettings(struct net_device *net_dev, 117 struct ethtool_link_ksettings *cmd) 118 { 119 struct ef4_nic *efx = netdev_priv(net_dev); 120 struct ef4_link_state *link_state = &efx->link_state; 121 122 mutex_lock(&efx->mac_lock); 123 efx->phy_op->get_link_ksettings(efx, cmd); 124 mutex_unlock(&efx->mac_lock); 125 126 /* Both MACs support pause frames (bidirectional and respond-only) */ 127 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 128 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause); 129 130 if (LOOPBACK_INTERNAL(efx)) { 131 cmd->base.speed = link_state->speed; 132 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; 133 } 134 135 return 0; 136 } 137 138 /* This must be called with rtnl_lock held. */ 139 static int 140 ef4_ethtool_set_link_ksettings(struct net_device *net_dev, 141 const struct ethtool_link_ksettings *cmd) 142 { 143 struct ef4_nic *efx = netdev_priv(net_dev); 144 int rc; 145 146 /* GMAC does not support 1000Mbps HD */ 147 if ((cmd->base.speed == SPEED_1000) && 148 (cmd->base.duplex != DUPLEX_FULL)) { 149 netif_dbg(efx, drv, efx->net_dev, 150 "rejecting unsupported 1000Mbps HD setting\n"); 151 return -EINVAL; 152 } 153 154 mutex_lock(&efx->mac_lock); 155 rc = efx->phy_op->set_link_ksettings(efx, cmd); 156 mutex_unlock(&efx->mac_lock); 157 return rc; 158 } 159 160 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, NULL); 518 if (rc) { 519 netif_err(efx, drv, efx->net_dev, 520 "failed opening device.\n"); 521 goto out; 522 } 523 } 524 525 rc = ef4_selftest(efx, ef4_tests, test->flags); 526 527 if (!already_up) 528 dev_close(efx->net_dev); 529 530 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n", 531 rc == 0 ? "passed" : "failed", 532 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 533 534 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 struct kernel_ethtool_coalesce *kernel_coal, 582 struct netlink_ext_ack *extack) 583 { 584 struct ef4_nic *efx = netdev_priv(net_dev); 585 unsigned int tx_usecs, rx_usecs; 586 bool rx_adaptive; 587 588 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive); 589 590 coalesce->tx_coalesce_usecs = tx_usecs; 591 coalesce->tx_coalesce_usecs_irq = tx_usecs; 592 coalesce->rx_coalesce_usecs = rx_usecs; 593 coalesce->rx_coalesce_usecs_irq = rx_usecs; 594 coalesce->use_adaptive_rx_coalesce = rx_adaptive; 595 596 return 0; 597 } 598 599 static int ef4_ethtool_set_coalesce(struct net_device *net_dev, 600 struct ethtool_coalesce *coalesce, 601 struct kernel_ethtool_coalesce *kernel_coal, 602 struct netlink_ext_ack *extack) 603 { 604 struct ef4_nic *efx = netdev_priv(net_dev); 605 struct ef4_channel *channel; 606 unsigned int tx_usecs, rx_usecs; 607 bool adaptive, rx_may_override_tx; 608 int rc; 609 610 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive); 611 612 if (coalesce->rx_coalesce_usecs != rx_usecs) 613 rx_usecs = coalesce->rx_coalesce_usecs; 614 else 615 rx_usecs = coalesce->rx_coalesce_usecs_irq; 616 617 adaptive = coalesce->use_adaptive_rx_coalesce; 618 619 /* If channels are shared, TX IRQ moderation can be quietly 620 * overridden unless it is changed from its old value. 621 */ 622 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs && 623 coalesce->tx_coalesce_usecs_irq == tx_usecs); 624 if (coalesce->tx_coalesce_usecs != tx_usecs) 625 tx_usecs = coalesce->tx_coalesce_usecs; 626 else 627 tx_usecs = coalesce->tx_coalesce_usecs_irq; 628 629 rc = ef4_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive, 630 rx_may_override_tx); 631 if (rc != 0) 632 return rc; 633 634 ef4_for_each_channel(channel, efx) 635 efx->type->push_irq_moderation(channel); 636 637 return 0; 638 } 639 640 static void ef4_ethtool_get_ringparam(struct net_device *net_dev, 641 struct ethtool_ringparam *ring) 642 { 643 struct ef4_nic *efx = netdev_priv(net_dev); 644 645 ring->rx_max_pending = EF4_MAX_DMAQ_SIZE; 646 ring->tx_max_pending = EF4_MAX_DMAQ_SIZE; 647 ring->rx_pending = efx->rxq_entries; 648 ring->tx_pending = efx->txq_entries; 649 } 650 651 static int ef4_ethtool_set_ringparam(struct net_device *net_dev, 652 struct ethtool_ringparam *ring) 653 { 654 struct ef4_nic *efx = netdev_priv(net_dev); 655 u32 txq_entries; 656 657 if (ring->rx_mini_pending || ring->rx_jumbo_pending || 658 ring->rx_pending > EF4_MAX_DMAQ_SIZE || 659 ring->tx_pending > EF4_MAX_DMAQ_SIZE) 660 return -EINVAL; 661 662 if (ring->rx_pending < EF4_RXQ_MIN_ENT) { 663 netif_err(efx, drv, efx->net_dev, 664 "RX queues cannot be smaller than %u\n", 665 EF4_RXQ_MIN_ENT); 666 return -EINVAL; 667 } 668 669 txq_entries = max(ring->tx_pending, EF4_TXQ_MIN_ENT(efx)); 670 if (txq_entries != ring->tx_pending) 671 netif_warn(efx, drv, efx->net_dev, 672 "increasing TX queue size to minimum of %u\n", 673 txq_entries); 674 675 return ef4_realloc_channels(efx, ring->rx_pending, txq_entries); 676 } 677 678 static int ef4_ethtool_set_pauseparam(struct net_device *net_dev, 679 struct ethtool_pauseparam *pause) 680 { 681 struct ef4_nic *efx = netdev_priv(net_dev); 682 u8 wanted_fc, old_fc; 683 u32 old_adv; 684 int rc = 0; 685 686 mutex_lock(&efx->mac_lock); 687 688 wanted_fc = ((pause->rx_pause ? EF4_FC_RX : 0) | 689 (pause->tx_pause ? EF4_FC_TX : 0) | 690 (pause->autoneg ? EF4_FC_AUTO : 0)); 691 692 if ((wanted_fc & EF4_FC_TX) && !(wanted_fc & EF4_FC_RX)) { 693 netif_dbg(efx, drv, efx->net_dev, 694 "Flow control unsupported: tx ON rx OFF\n"); 695 rc = -EINVAL; 696 goto out; 697 } 698 699 if ((wanted_fc & EF4_FC_AUTO) && !efx->link_advertising) { 700 netif_dbg(efx, drv, efx->net_dev, 701 "Autonegotiation is disabled\n"); 702 rc = -EINVAL; 703 goto out; 704 } 705 706 /* Hook for Falcon bug 11482 workaround */ 707 if (efx->type->prepare_enable_fc_tx && 708 (wanted_fc & EF4_FC_TX) && !(efx->wanted_fc & EF4_FC_TX)) 709 efx->type->prepare_enable_fc_tx(efx); 710 711 old_adv = efx->link_advertising; 712 old_fc = efx->wanted_fc; 713 ef4_link_set_wanted_fc(efx, wanted_fc); 714 if (efx->link_advertising != old_adv || 715 (efx->wanted_fc ^ old_fc) & EF4_FC_AUTO) { 716 rc = efx->phy_op->reconfigure(efx); 717 if (rc) { 718 netif_err(efx, drv, efx->net_dev, 719 "Unable to advertise requested flow " 720 "control setting\n"); 721 goto out; 722 } 723 } 724 725 /* Reconfigure the MAC. The PHY *may* generate a link state change event 726 * if the user just changed the advertised capabilities, but there's no 727 * harm doing this twice */ 728 ef4_mac_reconfigure(efx); 729 730 out: 731 mutex_unlock(&efx->mac_lock); 732 733 return rc; 734 } 735 736 static void ef4_ethtool_get_pauseparam(struct net_device *net_dev, 737 struct ethtool_pauseparam *pause) 738 { 739 struct ef4_nic *efx = netdev_priv(net_dev); 740 741 pause->rx_pause = !!(efx->wanted_fc & EF4_FC_RX); 742 pause->tx_pause = !!(efx->wanted_fc & EF4_FC_TX); 743 pause->autoneg = !!(efx->wanted_fc & EF4_FC_AUTO); 744 } 745 746 static void ef4_ethtool_get_wol(struct net_device *net_dev, 747 struct ethtool_wolinfo *wol) 748 { 749 struct ef4_nic *efx = netdev_priv(net_dev); 750 return efx->type->get_wol(efx, wol); 751 } 752 753 754 static int ef4_ethtool_set_wol(struct net_device *net_dev, 755 struct ethtool_wolinfo *wol) 756 { 757 struct ef4_nic *efx = netdev_priv(net_dev); 758 return efx->type->set_wol(efx, wol->wolopts); 759 } 760 761 static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags) 762 { 763 struct ef4_nic *efx = netdev_priv(net_dev); 764 int rc; 765 766 rc = efx->type->map_reset_flags(flags); 767 if (rc < 0) 768 return rc; 769 770 return ef4_reset(efx, rc); 771 } 772 773 /* MAC address mask including only I/G bit */ 774 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; 775 776 #define IP4_ADDR_FULL_MASK ((__force __be32)~0) 777 #define IP_PROTO_FULL_MASK 0xFF 778 #define PORT_FULL_MASK ((__force __be16)~0) 779 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 780 781 static inline void ip6_fill_mask(__be32 *mask) 782 { 783 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0; 784 } 785 786 static int ef4_ethtool_get_class_rule(struct ef4_nic *efx, 787 struct ethtool_rx_flow_spec *rule) 788 { 789 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 790 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 791 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 792 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 793 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 794 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 795 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 796 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 797 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 798 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 799 struct ef4_filter_spec spec; 800 int rc; 801 802 rc = ef4_filter_get_filter_safe(efx, EF4_FILTER_PRI_MANUAL, 803 rule->location, &spec); 804 if (rc) 805 return rc; 806 807 if (spec.dmaq_id == EF4_FILTER_RX_DMAQ_ID_DROP) 808 rule->ring_cookie = RX_CLS_FLOW_DISC; 809 else 810 rule->ring_cookie = spec.dmaq_id; 811 812 if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) && 813 spec.ether_type == htons(ETH_P_IP) && 814 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) && 815 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 816 !(spec.match_flags & 817 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | 818 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | 819 EF4_FILTER_MATCH_IP_PROTO | 820 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) { 821 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 822 TCP_V4_FLOW : UDP_V4_FLOW); 823 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { 824 ip_entry->ip4dst = spec.loc_host[0]; 825 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 826 } 827 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { 828 ip_entry->ip4src = spec.rem_host[0]; 829 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 830 } 831 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) { 832 ip_entry->pdst = spec.loc_port; 833 ip_mask->pdst = PORT_FULL_MASK; 834 } 835 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) { 836 ip_entry->psrc = spec.rem_port; 837 ip_mask->psrc = PORT_FULL_MASK; 838 } 839 } else if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) && 840 spec.ether_type == htons(ETH_P_IPV6) && 841 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) && 842 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 843 !(spec.match_flags & 844 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | 845 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | 846 EF4_FILTER_MATCH_IP_PROTO | 847 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) { 848 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 849 TCP_V6_FLOW : UDP_V6_FLOW); 850 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { 851 memcpy(ip6_entry->ip6dst, spec.loc_host, 852 sizeof(ip6_entry->ip6dst)); 853 ip6_fill_mask(ip6_mask->ip6dst); 854 } 855 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { 856 memcpy(ip6_entry->ip6src, spec.rem_host, 857 sizeof(ip6_entry->ip6src)); 858 ip6_fill_mask(ip6_mask->ip6src); 859 } 860 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) { 861 ip6_entry->pdst = spec.loc_port; 862 ip6_mask->pdst = PORT_FULL_MASK; 863 } 864 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) { 865 ip6_entry->psrc = spec.rem_port; 866 ip6_mask->psrc = PORT_FULL_MASK; 867 } 868 } else if (!(spec.match_flags & 869 ~(EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG | 870 EF4_FILTER_MATCH_REM_MAC | EF4_FILTER_MATCH_ETHER_TYPE | 871 EF4_FILTER_MATCH_OUTER_VID))) { 872 rule->flow_type = ETHER_FLOW; 873 if (spec.match_flags & 874 (EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG)) { 875 ether_addr_copy(mac_entry->h_dest, spec.loc_mac); 876 if (spec.match_flags & EF4_FILTER_MATCH_LOC_MAC) 877 eth_broadcast_addr(mac_mask->h_dest); 878 else 879 ether_addr_copy(mac_mask->h_dest, 880 mac_addr_ig_mask); 881 } 882 if (spec.match_flags & EF4_FILTER_MATCH_REM_MAC) { 883 ether_addr_copy(mac_entry->h_source, spec.rem_mac); 884 eth_broadcast_addr(mac_mask->h_source); 885 } 886 if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) { 887 mac_entry->h_proto = spec.ether_type; 888 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 889 } 890 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE && 891 spec.ether_type == htons(ETH_P_IP) && 892 !(spec.match_flags & 893 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | 894 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | 895 EF4_FILTER_MATCH_IP_PROTO))) { 896 rule->flow_type = IPV4_USER_FLOW; 897 uip_entry->ip_ver = ETH_RX_NFC_IP4; 898 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) { 899 uip_mask->proto = IP_PROTO_FULL_MASK; 900 uip_entry->proto = spec.ip_proto; 901 } 902 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { 903 uip_entry->ip4dst = spec.loc_host[0]; 904 uip_mask->ip4dst = IP4_ADDR_FULL_MASK; 905 } 906 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { 907 uip_entry->ip4src = spec.rem_host[0]; 908 uip_mask->ip4src = IP4_ADDR_FULL_MASK; 909 } 910 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE && 911 spec.ether_type == htons(ETH_P_IPV6) && 912 !(spec.match_flags & 913 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | 914 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | 915 EF4_FILTER_MATCH_IP_PROTO))) { 916 rule->flow_type = IPV6_USER_FLOW; 917 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) { 918 uip6_mask->l4_proto = IP_PROTO_FULL_MASK; 919 uip6_entry->l4_proto = spec.ip_proto; 920 } 921 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { 922 memcpy(uip6_entry->ip6dst, spec.loc_host, 923 sizeof(uip6_entry->ip6dst)); 924 ip6_fill_mask(uip6_mask->ip6dst); 925 } 926 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { 927 memcpy(uip6_entry->ip6src, spec.rem_host, 928 sizeof(uip6_entry->ip6src)); 929 ip6_fill_mask(uip6_mask->ip6src); 930 } 931 } else { 932 /* The above should handle all filters that we insert */ 933 WARN_ON(1); 934 return -EINVAL; 935 } 936 937 if (spec.match_flags & EF4_FILTER_MATCH_OUTER_VID) { 938 rule->flow_type |= FLOW_EXT; 939 rule->h_ext.vlan_tci = spec.outer_vid; 940 rule->m_ext.vlan_tci = htons(0xfff); 941 } 942 943 return rc; 944 } 945 946 static int 947 ef4_ethtool_get_rxnfc(struct net_device *net_dev, 948 struct ethtool_rxnfc *info, u32 *rule_locs) 949 { 950 struct ef4_nic *efx = netdev_priv(net_dev); 951 952 switch (info->cmd) { 953 case ETHTOOL_GRXRINGS: 954 info->data = efx->n_rx_channels; 955 return 0; 956 957 case ETHTOOL_GRXFH: { 958 unsigned min_revision = 0; 959 960 info->data = 0; 961 switch (info->flow_type) { 962 case TCP_V4_FLOW: 963 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 964 fallthrough; 965 case UDP_V4_FLOW: 966 case SCTP_V4_FLOW: 967 case AH_ESP_V4_FLOW: 968 case IPV4_FLOW: 969 info->data |= RXH_IP_SRC | RXH_IP_DST; 970 min_revision = EF4_REV_FALCON_B0; 971 break; 972 default: 973 break; 974 } 975 if (ef4_nic_rev(efx) < min_revision) 976 info->data = 0; 977 return 0; 978 } 979 980 case ETHTOOL_GRXCLSRLCNT: 981 info->data = ef4_filter_get_rx_id_limit(efx); 982 if (info->data == 0) 983 return -EOPNOTSUPP; 984 info->data |= RX_CLS_LOC_SPECIAL; 985 info->rule_cnt = 986 ef4_filter_count_rx_used(efx, EF4_FILTER_PRI_MANUAL); 987 return 0; 988 989 case ETHTOOL_GRXCLSRULE: 990 if (ef4_filter_get_rx_id_limit(efx) == 0) 991 return -EOPNOTSUPP; 992 return ef4_ethtool_get_class_rule(efx, &info->fs); 993 994 case ETHTOOL_GRXCLSRLALL: { 995 s32 rc; 996 info->data = ef4_filter_get_rx_id_limit(efx); 997 if (info->data == 0) 998 return -EOPNOTSUPP; 999 rc = ef4_filter_get_rx_ids(efx, EF4_FILTER_PRI_MANUAL, 1000 rule_locs, info->rule_cnt); 1001 if (rc < 0) 1002 return rc; 1003 info->rule_cnt = rc; 1004 return 0; 1005 } 1006 1007 default: 1008 return -EOPNOTSUPP; 1009 } 1010 } 1011 1012 static inline bool ip6_mask_is_full(__be32 mask[4]) 1013 { 1014 return !~(mask[0] & mask[1] & mask[2] & mask[3]); 1015 } 1016 1017 static inline bool ip6_mask_is_empty(__be32 mask[4]) 1018 { 1019 return !(mask[0] | mask[1] | mask[2] | mask[3]); 1020 } 1021 1022 static int ef4_ethtool_set_class_rule(struct ef4_nic *efx, 1023 struct ethtool_rx_flow_spec *rule) 1024 { 1025 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 1026 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 1027 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 1028 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 1029 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 1030 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 1031 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 1032 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 1033 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 1034 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 1035 struct ef4_filter_spec spec; 1036 int rc; 1037 1038 /* Check that user wants us to choose the location */ 1039 if (rule->location != RX_CLS_LOC_ANY) 1040 return -EINVAL; 1041 1042 /* Range-check ring_cookie */ 1043 if (rule->ring_cookie >= efx->n_rx_channels && 1044 rule->ring_cookie != RX_CLS_FLOW_DISC) 1045 return -EINVAL; 1046 1047 /* Check for unsupported extensions */ 1048 if ((rule->flow_type & FLOW_EXT) && 1049 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 1050 rule->m_ext.data[1])) 1051 return -EINVAL; 1052 1053 ef4_filter_init_rx(&spec, EF4_FILTER_PRI_MANUAL, 1054 efx->rx_scatter ? EF4_FILTER_FLAG_RX_SCATTER : 0, 1055 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 1056 EF4_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 1057 1058 switch (rule->flow_type & ~FLOW_EXT) { 1059 case TCP_V4_FLOW: 1060 case UDP_V4_FLOW: 1061 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE | 1062 EF4_FILTER_MATCH_IP_PROTO); 1063 spec.ether_type = htons(ETH_P_IP); 1064 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ? 1065 IPPROTO_TCP : IPPROTO_UDP); 1066 if (ip_mask->ip4dst) { 1067 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1068 return -EINVAL; 1069 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; 1070 spec.loc_host[0] = ip_entry->ip4dst; 1071 } 1072 if (ip_mask->ip4src) { 1073 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 1074 return -EINVAL; 1075 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; 1076 spec.rem_host[0] = ip_entry->ip4src; 1077 } 1078 if (ip_mask->pdst) { 1079 if (ip_mask->pdst != PORT_FULL_MASK) 1080 return -EINVAL; 1081 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT; 1082 spec.loc_port = ip_entry->pdst; 1083 } 1084 if (ip_mask->psrc) { 1085 if (ip_mask->psrc != PORT_FULL_MASK) 1086 return -EINVAL; 1087 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT; 1088 spec.rem_port = ip_entry->psrc; 1089 } 1090 if (ip_mask->tos) 1091 return -EINVAL; 1092 break; 1093 1094 case TCP_V6_FLOW: 1095 case UDP_V6_FLOW: 1096 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE | 1097 EF4_FILTER_MATCH_IP_PROTO); 1098 spec.ether_type = htons(ETH_P_IPV6); 1099 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ? 1100 IPPROTO_TCP : IPPROTO_UDP); 1101 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { 1102 if (!ip6_mask_is_full(ip6_mask->ip6dst)) 1103 return -EINVAL; 1104 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; 1105 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host)); 1106 } 1107 if (!ip6_mask_is_empty(ip6_mask->ip6src)) { 1108 if (!ip6_mask_is_full(ip6_mask->ip6src)) 1109 return -EINVAL; 1110 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; 1111 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host)); 1112 } 1113 if (ip6_mask->pdst) { 1114 if (ip6_mask->pdst != PORT_FULL_MASK) 1115 return -EINVAL; 1116 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT; 1117 spec.loc_port = ip6_entry->pdst; 1118 } 1119 if (ip6_mask->psrc) { 1120 if (ip6_mask->psrc != PORT_FULL_MASK) 1121 return -EINVAL; 1122 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT; 1123 spec.rem_port = ip6_entry->psrc; 1124 } 1125 if (ip6_mask->tclass) 1126 return -EINVAL; 1127 break; 1128 1129 case IPV4_USER_FLOW: 1130 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver || 1131 uip_entry->ip_ver != ETH_RX_NFC_IP4) 1132 return -EINVAL; 1133 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE; 1134 spec.ether_type = htons(ETH_P_IP); 1135 if (uip_mask->ip4dst) { 1136 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1137 return -EINVAL; 1138 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; 1139 spec.loc_host[0] = uip_entry->ip4dst; 1140 } 1141 if (uip_mask->ip4src) { 1142 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK) 1143 return -EINVAL; 1144 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; 1145 spec.rem_host[0] = uip_entry->ip4src; 1146 } 1147 if (uip_mask->proto) { 1148 if (uip_mask->proto != IP_PROTO_FULL_MASK) 1149 return -EINVAL; 1150 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO; 1151 spec.ip_proto = uip_entry->proto; 1152 } 1153 break; 1154 1155 case IPV6_USER_FLOW: 1156 if (uip6_mask->l4_4_bytes || uip6_mask->tclass) 1157 return -EINVAL; 1158 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE; 1159 spec.ether_type = htons(ETH_P_IPV6); 1160 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) { 1161 if (!ip6_mask_is_full(uip6_mask->ip6dst)) 1162 return -EINVAL; 1163 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; 1164 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host)); 1165 } 1166 if (!ip6_mask_is_empty(uip6_mask->ip6src)) { 1167 if (!ip6_mask_is_full(uip6_mask->ip6src)) 1168 return -EINVAL; 1169 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; 1170 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host)); 1171 } 1172 if (uip6_mask->l4_proto) { 1173 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK) 1174 return -EINVAL; 1175 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO; 1176 spec.ip_proto = uip6_entry->l4_proto; 1177 } 1178 break; 1179 1180 case ETHER_FLOW: 1181 if (!is_zero_ether_addr(mac_mask->h_dest)) { 1182 if (ether_addr_equal(mac_mask->h_dest, 1183 mac_addr_ig_mask)) 1184 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC_IG; 1185 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 1186 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC; 1187 else 1188 return -EINVAL; 1189 ether_addr_copy(spec.loc_mac, mac_entry->h_dest); 1190 } 1191 if (!is_zero_ether_addr(mac_mask->h_source)) { 1192 if (!is_broadcast_ether_addr(mac_mask->h_source)) 1193 return -EINVAL; 1194 spec.match_flags |= EF4_FILTER_MATCH_REM_MAC; 1195 ether_addr_copy(spec.rem_mac, mac_entry->h_source); 1196 } 1197 if (mac_mask->h_proto) { 1198 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 1199 return -EINVAL; 1200 spec.match_flags |= EF4_FILTER_MATCH_ETHER_TYPE; 1201 spec.ether_type = mac_entry->h_proto; 1202 } 1203 break; 1204 1205 default: 1206 return -EINVAL; 1207 } 1208 1209 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 1210 if (rule->m_ext.vlan_tci != htons(0xfff)) 1211 return -EINVAL; 1212 spec.match_flags |= EF4_FILTER_MATCH_OUTER_VID; 1213 spec.outer_vid = rule->h_ext.vlan_tci; 1214 } 1215 1216 rc = ef4_filter_insert_filter(efx, &spec, true); 1217 if (rc < 0) 1218 return rc; 1219 1220 rule->location = rc; 1221 return 0; 1222 } 1223 1224 static int ef4_ethtool_set_rxnfc(struct net_device *net_dev, 1225 struct ethtool_rxnfc *info) 1226 { 1227 struct ef4_nic *efx = netdev_priv(net_dev); 1228 1229 if (ef4_filter_get_rx_id_limit(efx) == 0) 1230 return -EOPNOTSUPP; 1231 1232 switch (info->cmd) { 1233 case ETHTOOL_SRXCLSRLINS: 1234 return ef4_ethtool_set_class_rule(efx, &info->fs); 1235 1236 case ETHTOOL_SRXCLSRLDEL: 1237 return ef4_filter_remove_id_safe(efx, EF4_FILTER_PRI_MANUAL, 1238 info->fs.location); 1239 1240 default: 1241 return -EOPNOTSUPP; 1242 } 1243 } 1244 1245 static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1246 { 1247 struct ef4_nic *efx = netdev_priv(net_dev); 1248 1249 return ((ef4_nic_rev(efx) < EF4_REV_FALCON_B0 || 1250 efx->n_rx_channels == 1) ? 1251 0 : ARRAY_SIZE(efx->rx_indir_table)); 1252 } 1253 1254 static int ef4_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key, 1255 u8 *hfunc) 1256 { 1257 struct ef4_nic *efx = netdev_priv(net_dev); 1258 1259 if (hfunc) 1260 *hfunc = ETH_RSS_HASH_TOP; 1261 if (indir) 1262 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table)); 1263 return 0; 1264 } 1265 1266 static int ef4_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir, 1267 const u8 *key, const u8 hfunc) 1268 { 1269 struct ef4_nic *efx = netdev_priv(net_dev); 1270 1271 /* We do not allow change in unsupported parameters */ 1272 if (key || 1273 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1274 return -EOPNOTSUPP; 1275 if (!indir) 1276 return 0; 1277 1278 return efx->type->rx_push_rss_config(efx, true, indir); 1279 } 1280 1281 static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev, 1282 struct ethtool_eeprom *ee, 1283 u8 *data) 1284 { 1285 struct ef4_nic *efx = netdev_priv(net_dev); 1286 int ret; 1287 1288 if (!efx->phy_op || !efx->phy_op->get_module_eeprom) 1289 return -EOPNOTSUPP; 1290 1291 mutex_lock(&efx->mac_lock); 1292 ret = efx->phy_op->get_module_eeprom(efx, ee, data); 1293 mutex_unlock(&efx->mac_lock); 1294 1295 return ret; 1296 } 1297 1298 static int ef4_ethtool_get_module_info(struct net_device *net_dev, 1299 struct ethtool_modinfo *modinfo) 1300 { 1301 struct ef4_nic *efx = netdev_priv(net_dev); 1302 int ret; 1303 1304 if (!efx->phy_op || !efx->phy_op->get_module_info) 1305 return -EOPNOTSUPP; 1306 1307 mutex_lock(&efx->mac_lock); 1308 ret = efx->phy_op->get_module_info(efx, modinfo); 1309 mutex_unlock(&efx->mac_lock); 1310 1311 return ret; 1312 } 1313 1314 const struct ethtool_ops ef4_ethtool_ops = { 1315 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 1316 ETHTOOL_COALESCE_USECS_IRQ | 1317 ETHTOOL_COALESCE_USE_ADAPTIVE_RX, 1318 .get_drvinfo = ef4_ethtool_get_drvinfo, 1319 .get_regs_len = ef4_ethtool_get_regs_len, 1320 .get_regs = ef4_ethtool_get_regs, 1321 .get_msglevel = ef4_ethtool_get_msglevel, 1322 .set_msglevel = ef4_ethtool_set_msglevel, 1323 .nway_reset = ef4_ethtool_nway_reset, 1324 .get_link = ethtool_op_get_link, 1325 .get_coalesce = ef4_ethtool_get_coalesce, 1326 .set_coalesce = ef4_ethtool_set_coalesce, 1327 .get_ringparam = ef4_ethtool_get_ringparam, 1328 .set_ringparam = ef4_ethtool_set_ringparam, 1329 .get_pauseparam = ef4_ethtool_get_pauseparam, 1330 .set_pauseparam = ef4_ethtool_set_pauseparam, 1331 .get_sset_count = ef4_ethtool_get_sset_count, 1332 .self_test = ef4_ethtool_self_test, 1333 .get_strings = ef4_ethtool_get_strings, 1334 .set_phys_id = ef4_ethtool_phys_id, 1335 .get_ethtool_stats = ef4_ethtool_get_stats, 1336 .get_wol = ef4_ethtool_get_wol, 1337 .set_wol = ef4_ethtool_set_wol, 1338 .reset = ef4_ethtool_reset, 1339 .get_rxnfc = ef4_ethtool_get_rxnfc, 1340 .set_rxnfc = ef4_ethtool_set_rxnfc, 1341 .get_rxfh_indir_size = ef4_ethtool_get_rxfh_indir_size, 1342 .get_rxfh = ef4_ethtool_get_rxfh, 1343 .set_rxfh = ef4_ethtool_set_rxfh, 1344 .get_module_info = ef4_ethtool_get_module_info, 1345 .get_module_eeprom = ef4_ethtool_get_module_eeprom, 1346 .get_link_ksettings = ef4_ethtool_get_link_ksettings, 1347 .set_link_ksettings = ef4_ethtool_set_link_ksettings, 1348 }; 1349