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 efx_sw_stat_desc { 20 const char *name; 21 enum { 22 EFX_ETHTOOL_STAT_SOURCE_nic, 23 EFX_ETHTOOL_STAT_SOURCE_channel, 24 EFX_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 efx_sw_stat_desc with type-checking */ 31 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \ 32 get_stat_function) { \ 33 .name = #stat_name, \ 34 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \ 35 .offset = ((((field_type *) 0) == \ 36 &((struct efx_##source_name *)0)->field) ? \ 37 offsetof(struct efx_##source_name, field) : \ 38 offsetof(struct efx_##source_name, field)), \ 39 .get_stat = get_stat_function, \ 40 } 41 42 static u64 efx_get_uint_stat(void *field) 43 { 44 return *(unsigned int *)field; 45 } 46 47 static u64 efx_get_atomic_stat(void *field) 48 { 49 return atomic_read((atomic_t *) field); 50 } 51 52 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \ 53 EFX_ETHTOOL_STAT(field, nic, field, \ 54 atomic_t, efx_get_atomic_stat) 55 56 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \ 57 EFX_ETHTOOL_STAT(field, channel, n_##field, \ 58 unsigned int, efx_get_uint_stat) 59 #define EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(field) \ 60 EFX_ETHTOOL_STAT(field, channel, 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(tso_fallbacks), 73 EFX_ETHTOOL_UINT_TXQ_STAT(pushes), 74 EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets), 75 EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets), 76 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset), 77 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc), 78 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err), 79 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err), 80 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_ip_hdr_chksum_err), 81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err), 82 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err), 83 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err), 84 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_err), 85 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch), 86 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc), 87 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events), 88 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets), 89 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops), 90 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops), 91 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx), 92 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect), 93 #ifdef CONFIG_RFS_ACCEL 94 EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count), 95 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded), 96 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed), 97 #endif 98 }; 99 100 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc) 101 102 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB 103 104 /************************************************************************** 105 * 106 * Ethtool operations 107 * 108 ************************************************************************** 109 */ 110 111 /* Identify device by flashing LEDs */ 112 static int efx_ethtool_phys_id(struct net_device *net_dev, 113 enum ethtool_phys_id_state state) 114 { 115 struct efx_nic *efx = netdev_priv(net_dev); 116 enum efx_led_mode mode = EFX_LED_DEFAULT; 117 118 switch (state) { 119 case ETHTOOL_ID_ON: 120 mode = EFX_LED_ON; 121 break; 122 case ETHTOOL_ID_OFF: 123 mode = EFX_LED_OFF; 124 break; 125 case ETHTOOL_ID_INACTIVE: 126 mode = EFX_LED_DEFAULT; 127 break; 128 case ETHTOOL_ID_ACTIVE: 129 return 1; /* cycle on/off once per second */ 130 } 131 132 efx->type->set_id_led(efx, mode); 133 return 0; 134 } 135 136 /* This must be called with rtnl_lock held. */ 137 static int 138 efx_ethtool_get_link_ksettings(struct net_device *net_dev, 139 struct ethtool_link_ksettings *cmd) 140 { 141 struct efx_nic *efx = netdev_priv(net_dev); 142 struct efx_link_state *link_state = &efx->link_state; 143 u32 supported; 144 145 mutex_lock(&efx->mac_lock); 146 efx->phy_op->get_link_ksettings(efx, cmd); 147 mutex_unlock(&efx->mac_lock); 148 149 /* Both MACs support pause frames (bidirectional and respond-only) */ 150 ethtool_convert_link_mode_to_legacy_u32(&supported, 151 cmd->link_modes.supported); 152 153 supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause; 154 155 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, 156 supported); 157 158 if (LOOPBACK_INTERNAL(efx)) { 159 cmd->base.speed = link_state->speed; 160 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; 161 } 162 163 return 0; 164 } 165 166 /* This must be called with rtnl_lock held. */ 167 static int 168 efx_ethtool_set_link_ksettings(struct net_device *net_dev, 169 const struct ethtool_link_ksettings *cmd) 170 { 171 struct efx_nic *efx = netdev_priv(net_dev); 172 int rc; 173 174 /* GMAC does not support 1000Mbps HD */ 175 if ((cmd->base.speed == SPEED_1000) && 176 (cmd->base.duplex != DUPLEX_FULL)) { 177 netif_dbg(efx, drv, efx->net_dev, 178 "rejecting unsupported 1000Mbps HD setting\n"); 179 return -EINVAL; 180 } 181 182 mutex_lock(&efx->mac_lock); 183 rc = efx->phy_op->set_link_ksettings(efx, cmd); 184 mutex_unlock(&efx->mac_lock); 185 return rc; 186 } 187 188 static void efx_ethtool_get_drvinfo(struct net_device *net_dev, 189 struct ethtool_drvinfo *info) 190 { 191 struct efx_nic *efx = netdev_priv(net_dev); 192 193 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); 194 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version)); 195 efx_mcdi_print_fwver(efx, info->fw_version, 196 sizeof(info->fw_version)); 197 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info)); 198 } 199 200 static int efx_ethtool_get_regs_len(struct net_device *net_dev) 201 { 202 return efx_nic_get_regs_len(netdev_priv(net_dev)); 203 } 204 205 static void efx_ethtool_get_regs(struct net_device *net_dev, 206 struct ethtool_regs *regs, void *buf) 207 { 208 struct efx_nic *efx = netdev_priv(net_dev); 209 210 regs->version = efx->type->revision; 211 efx_nic_get_regs(efx, buf); 212 } 213 214 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev) 215 { 216 struct efx_nic *efx = netdev_priv(net_dev); 217 return efx->msg_enable; 218 } 219 220 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable) 221 { 222 struct efx_nic *efx = netdev_priv(net_dev); 223 efx->msg_enable = msg_enable; 224 } 225 226 /** 227 * efx_fill_test - fill in an individual self-test entry 228 * @test_index: Index of the test 229 * @strings: Ethtool strings, or %NULL 230 * @data: Ethtool test results, or %NULL 231 * @test: Pointer to test result (used only if data != %NULL) 232 * @unit_format: Unit name format (e.g. "chan\%d") 233 * @unit_id: Unit id (e.g. 0 for "chan0") 234 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent") 235 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent") 236 * 237 * Fill in an individual self-test entry. 238 */ 239 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data, 240 int *test, const char *unit_format, int unit_id, 241 const char *test_format, const char *test_id) 242 { 243 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN]; 244 245 /* Fill data value, if applicable */ 246 if (data) 247 data[test_index] = *test; 248 249 /* Fill string, if applicable */ 250 if (strings) { 251 if (strchr(unit_format, '%')) 252 snprintf(unit_str, sizeof(unit_str), 253 unit_format, unit_id); 254 else 255 strcpy(unit_str, unit_format); 256 snprintf(test_str, sizeof(test_str), test_format, test_id); 257 snprintf(strings + test_index * ETH_GSTRING_LEN, 258 ETH_GSTRING_LEN, 259 "%-6s %-24s", unit_str, test_str); 260 } 261 } 262 263 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel 264 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue 265 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue 266 #define EFX_LOOPBACK_NAME(_mode, _counter) \ 267 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode) 268 269 /** 270 * efx_fill_loopback_test - fill in a block of loopback self-test entries 271 * @efx: Efx NIC 272 * @lb_tests: Efx loopback self-test results structure 273 * @mode: Loopback test mode 274 * @test_index: Starting index of the test 275 * @strings: Ethtool strings, or %NULL 276 * @data: Ethtool test results, or %NULL 277 * 278 * Fill in a block of loopback self-test entries. Return new test 279 * index. 280 */ 281 static int efx_fill_loopback_test(struct efx_nic *efx, 282 struct efx_loopback_self_tests *lb_tests, 283 enum efx_loopback_mode mode, 284 unsigned int test_index, 285 u8 *strings, u64 *data) 286 { 287 struct efx_channel *channel = 288 efx_get_channel(efx, efx->tx_channel_offset); 289 struct efx_tx_queue *tx_queue; 290 291 efx_for_each_channel_tx_queue(tx_queue, channel) { 292 efx_fill_test(test_index++, strings, data, 293 &lb_tests->tx_sent[tx_queue->queue], 294 EFX_TX_QUEUE_NAME(tx_queue), 295 EFX_LOOPBACK_NAME(mode, "tx_sent")); 296 efx_fill_test(test_index++, strings, data, 297 &lb_tests->tx_done[tx_queue->queue], 298 EFX_TX_QUEUE_NAME(tx_queue), 299 EFX_LOOPBACK_NAME(mode, "tx_done")); 300 } 301 efx_fill_test(test_index++, strings, data, 302 &lb_tests->rx_good, 303 "rx", 0, 304 EFX_LOOPBACK_NAME(mode, "rx_good")); 305 efx_fill_test(test_index++, strings, data, 306 &lb_tests->rx_bad, 307 "rx", 0, 308 EFX_LOOPBACK_NAME(mode, "rx_bad")); 309 310 return test_index; 311 } 312 313 /** 314 * efx_ethtool_fill_self_tests - get self-test details 315 * @efx: Efx NIC 316 * @tests: Efx self-test results structure, or %NULL 317 * @strings: Ethtool strings, or %NULL 318 * @data: Ethtool test results, or %NULL 319 * 320 * Get self-test number of strings, strings, and/or test results. 321 * Return number of strings (== number of test results). 322 * 323 * The reason for merging these three functions is to make sure that 324 * they can never be inconsistent. 325 */ 326 static int efx_ethtool_fill_self_tests(struct efx_nic *efx, 327 struct efx_self_tests *tests, 328 u8 *strings, u64 *data) 329 { 330 struct efx_channel *channel; 331 unsigned int n = 0, i; 332 enum efx_loopback_mode mode; 333 334 efx_fill_test(n++, strings, data, &tests->phy_alive, 335 "phy", 0, "alive", NULL); 336 efx_fill_test(n++, strings, data, &tests->nvram, 337 "core", 0, "nvram", NULL); 338 efx_fill_test(n++, strings, data, &tests->interrupt, 339 "core", 0, "interrupt", NULL); 340 341 /* Event queues */ 342 efx_for_each_channel(channel, efx) { 343 efx_fill_test(n++, strings, data, 344 &tests->eventq_dma[channel->channel], 345 EFX_CHANNEL_NAME(channel), 346 "eventq.dma", NULL); 347 efx_fill_test(n++, strings, data, 348 &tests->eventq_int[channel->channel], 349 EFX_CHANNEL_NAME(channel), 350 "eventq.int", NULL); 351 } 352 353 efx_fill_test(n++, strings, data, &tests->memory, 354 "core", 0, "memory", NULL); 355 efx_fill_test(n++, strings, data, &tests->registers, 356 "core", 0, "registers", NULL); 357 358 if (efx->phy_op->run_tests != NULL) { 359 EFX_WARN_ON_PARANOID(efx->phy_op->test_name == NULL); 360 361 for (i = 0; true; ++i) { 362 const char *name; 363 364 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS); 365 name = efx->phy_op->test_name(efx, i); 366 if (name == NULL) 367 break; 368 369 efx_fill_test(n++, strings, data, &tests->phy_ext[i], 370 "phy", 0, name, NULL); 371 } 372 } 373 374 /* Loopback tests */ 375 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) { 376 if (!(efx->loopback_modes & (1 << mode))) 377 continue; 378 n = efx_fill_loopback_test(efx, 379 &tests->loopback[mode], mode, n, 380 strings, data); 381 } 382 383 return n; 384 } 385 386 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings) 387 { 388 size_t n_stats = 0; 389 struct efx_channel *channel; 390 391 efx_for_each_channel(channel, efx) { 392 if (efx_channel_has_tx_queues(channel)) { 393 n_stats++; 394 if (strings != NULL) { 395 snprintf(strings, ETH_GSTRING_LEN, 396 "tx-%u.tx_packets", 397 channel->tx_queue[0].queue / 398 EFX_TXQ_TYPES); 399 400 strings += ETH_GSTRING_LEN; 401 } 402 } 403 } 404 efx_for_each_channel(channel, efx) { 405 if (efx_channel_has_rx_queue(channel)) { 406 n_stats++; 407 if (strings != NULL) { 408 snprintf(strings, ETH_GSTRING_LEN, 409 "rx-%d.rx_packets", channel->channel); 410 strings += ETH_GSTRING_LEN; 411 } 412 } 413 } 414 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 415 unsigned short xdp; 416 417 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 418 n_stats++; 419 if (strings) { 420 snprintf(strings, ETH_GSTRING_LEN, 421 "tx-xdp-cpu-%hu.tx_packets", xdp); 422 strings += ETH_GSTRING_LEN; 423 } 424 } 425 } 426 427 return n_stats; 428 } 429 430 static int efx_ethtool_get_sset_count(struct net_device *net_dev, 431 int string_set) 432 { 433 struct efx_nic *efx = netdev_priv(net_dev); 434 435 switch (string_set) { 436 case ETH_SS_STATS: 437 return efx->type->describe_stats(efx, NULL) + 438 EFX_ETHTOOL_SW_STAT_COUNT + 439 efx_describe_per_queue_stats(efx, NULL) + 440 efx_ptp_describe_stats(efx, NULL); 441 case ETH_SS_TEST: 442 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL); 443 default: 444 return -EINVAL; 445 } 446 } 447 448 static void efx_ethtool_get_strings(struct net_device *net_dev, 449 u32 string_set, u8 *strings) 450 { 451 struct efx_nic *efx = netdev_priv(net_dev); 452 int i; 453 454 switch (string_set) { 455 case ETH_SS_STATS: 456 strings += (efx->type->describe_stats(efx, strings) * 457 ETH_GSTRING_LEN); 458 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) 459 strlcpy(strings + i * ETH_GSTRING_LEN, 460 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN); 461 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN; 462 strings += (efx_describe_per_queue_stats(efx, strings) * 463 ETH_GSTRING_LEN); 464 efx_ptp_describe_stats(efx, strings); 465 break; 466 case ETH_SS_TEST: 467 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL); 468 break; 469 default: 470 /* No other string sets */ 471 break; 472 } 473 } 474 475 static void efx_ethtool_get_stats(struct net_device *net_dev, 476 struct ethtool_stats *stats, 477 u64 *data) 478 { 479 struct efx_nic *efx = netdev_priv(net_dev); 480 const struct efx_sw_stat_desc *stat; 481 struct efx_channel *channel; 482 struct efx_tx_queue *tx_queue; 483 struct efx_rx_queue *rx_queue; 484 int i; 485 486 spin_lock_bh(&efx->stats_lock); 487 488 /* Get NIC statistics */ 489 data += efx->type->update_stats(efx, data, NULL); 490 491 /* Get software statistics */ 492 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) { 493 stat = &efx_sw_stat_desc[i]; 494 switch (stat->source) { 495 case EFX_ETHTOOL_STAT_SOURCE_nic: 496 data[i] = stat->get_stat((void *)efx + stat->offset); 497 break; 498 case EFX_ETHTOOL_STAT_SOURCE_channel: 499 data[i] = 0; 500 efx_for_each_channel(channel, efx) 501 data[i] += stat->get_stat((void *)channel + 502 stat->offset); 503 break; 504 case EFX_ETHTOOL_STAT_SOURCE_tx_queue: 505 data[i] = 0; 506 efx_for_each_channel(channel, efx) { 507 efx_for_each_channel_tx_queue(tx_queue, channel) 508 data[i] += 509 stat->get_stat((void *)tx_queue 510 + stat->offset); 511 } 512 break; 513 } 514 } 515 data += EFX_ETHTOOL_SW_STAT_COUNT; 516 517 spin_unlock_bh(&efx->stats_lock); 518 519 efx_for_each_channel(channel, efx) { 520 if (efx_channel_has_tx_queues(channel)) { 521 *data = 0; 522 efx_for_each_channel_tx_queue(tx_queue, channel) { 523 *data += tx_queue->tx_packets; 524 } 525 data++; 526 } 527 } 528 efx_for_each_channel(channel, efx) { 529 if (efx_channel_has_rx_queue(channel)) { 530 *data = 0; 531 efx_for_each_channel_rx_queue(rx_queue, channel) { 532 *data += rx_queue->rx_packets; 533 } 534 data++; 535 } 536 } 537 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 538 int xdp; 539 540 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 541 data[0] = efx->xdp_tx_queues[xdp]->tx_packets; 542 data++; 543 } 544 } 545 546 efx_ptp_update_stats(efx, data); 547 } 548 549 static void efx_ethtool_self_test(struct net_device *net_dev, 550 struct ethtool_test *test, u64 *data) 551 { 552 struct efx_nic *efx = netdev_priv(net_dev); 553 struct efx_self_tests *efx_tests; 554 bool already_up; 555 int rc = -ENOMEM; 556 557 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL); 558 if (!efx_tests) 559 goto fail; 560 561 if (efx->state != STATE_READY) { 562 rc = -EBUSY; 563 goto out; 564 } 565 566 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n", 567 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 568 569 /* We need rx buffers and interrupts. */ 570 already_up = (efx->net_dev->flags & IFF_UP); 571 if (!already_up) { 572 rc = dev_open(efx->net_dev, NULL); 573 if (rc) { 574 netif_err(efx, drv, efx->net_dev, 575 "failed opening device.\n"); 576 goto out; 577 } 578 } 579 580 rc = efx_selftest(efx, efx_tests, test->flags); 581 582 if (!already_up) 583 dev_close(efx->net_dev); 584 585 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n", 586 rc == 0 ? "passed" : "failed", 587 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 588 589 out: 590 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data); 591 kfree(efx_tests); 592 fail: 593 if (rc) 594 test->flags |= ETH_TEST_FL_FAILED; 595 } 596 597 /* Restart autonegotiation */ 598 static int efx_ethtool_nway_reset(struct net_device *net_dev) 599 { 600 struct efx_nic *efx = netdev_priv(net_dev); 601 602 return mdio45_nway_restart(&efx->mdio); 603 } 604 605 /* 606 * Each channel has a single IRQ and moderation timer, started by any 607 * completion (or other event). Unless the module parameter 608 * separate_tx_channels is set, IRQs and moderation are therefore 609 * shared between RX and TX completions. In this case, when RX IRQ 610 * moderation is explicitly changed then TX IRQ moderation is 611 * automatically changed too, but otherwise we fail if the two values 612 * are requested to be different. 613 * 614 * The hardware does not support a limit on the number of completions 615 * before an IRQ, so we do not use the max_frames fields. We should 616 * report and require that max_frames == (usecs != 0), but this would 617 * invalidate existing user documentation. 618 * 619 * The hardware does not have distinct settings for interrupt 620 * moderation while the previous IRQ is being handled, so we should 621 * not use the 'irq' fields. However, an earlier developer 622 * misunderstood the meaning of the 'irq' fields and the driver did 623 * not support the standard fields. To avoid invalidating existing 624 * user documentation, we report and accept changes through either the 625 * standard or 'irq' fields. If both are changed at the same time, we 626 * prefer the standard field. 627 * 628 * We implement adaptive IRQ moderation, but use a different algorithm 629 * from that assumed in the definition of struct ethtool_coalesce. 630 * Therefore we do not use any of the adaptive moderation parameters 631 * in it. 632 */ 633 634 static int efx_ethtool_get_coalesce(struct net_device *net_dev, 635 struct ethtool_coalesce *coalesce) 636 { 637 struct efx_nic *efx = netdev_priv(net_dev); 638 unsigned int tx_usecs, rx_usecs; 639 bool rx_adaptive; 640 641 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive); 642 643 coalesce->tx_coalesce_usecs = tx_usecs; 644 coalesce->tx_coalesce_usecs_irq = tx_usecs; 645 coalesce->rx_coalesce_usecs = rx_usecs; 646 coalesce->rx_coalesce_usecs_irq = rx_usecs; 647 coalesce->use_adaptive_rx_coalesce = rx_adaptive; 648 649 return 0; 650 } 651 652 static int efx_ethtool_set_coalesce(struct net_device *net_dev, 653 struct ethtool_coalesce *coalesce) 654 { 655 struct efx_nic *efx = netdev_priv(net_dev); 656 struct efx_channel *channel; 657 unsigned int tx_usecs, rx_usecs; 658 bool adaptive, rx_may_override_tx; 659 int rc; 660 661 if (coalesce->use_adaptive_tx_coalesce) 662 return -EINVAL; 663 664 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive); 665 666 if (coalesce->rx_coalesce_usecs != rx_usecs) 667 rx_usecs = coalesce->rx_coalesce_usecs; 668 else 669 rx_usecs = coalesce->rx_coalesce_usecs_irq; 670 671 adaptive = coalesce->use_adaptive_rx_coalesce; 672 673 /* If channels are shared, TX IRQ moderation can be quietly 674 * overridden unless it is changed from its old value. 675 */ 676 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs && 677 coalesce->tx_coalesce_usecs_irq == tx_usecs); 678 if (coalesce->tx_coalesce_usecs != tx_usecs) 679 tx_usecs = coalesce->tx_coalesce_usecs; 680 else 681 tx_usecs = coalesce->tx_coalesce_usecs_irq; 682 683 rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive, 684 rx_may_override_tx); 685 if (rc != 0) 686 return rc; 687 688 efx_for_each_channel(channel, efx) 689 efx->type->push_irq_moderation(channel); 690 691 return 0; 692 } 693 694 static void efx_ethtool_get_ringparam(struct net_device *net_dev, 695 struct ethtool_ringparam *ring) 696 { 697 struct efx_nic *efx = netdev_priv(net_dev); 698 699 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE; 700 ring->tx_max_pending = EFX_TXQ_MAX_ENT(efx); 701 ring->rx_pending = efx->rxq_entries; 702 ring->tx_pending = efx->txq_entries; 703 } 704 705 static int efx_ethtool_set_ringparam(struct net_device *net_dev, 706 struct ethtool_ringparam *ring) 707 { 708 struct efx_nic *efx = netdev_priv(net_dev); 709 u32 txq_entries; 710 711 if (ring->rx_mini_pending || ring->rx_jumbo_pending || 712 ring->rx_pending > EFX_MAX_DMAQ_SIZE || 713 ring->tx_pending > EFX_TXQ_MAX_ENT(efx)) 714 return -EINVAL; 715 716 if (ring->rx_pending < EFX_RXQ_MIN_ENT) { 717 netif_err(efx, drv, efx->net_dev, 718 "RX queues cannot be smaller than %u\n", 719 EFX_RXQ_MIN_ENT); 720 return -EINVAL; 721 } 722 723 txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx)); 724 if (txq_entries != ring->tx_pending) 725 netif_warn(efx, drv, efx->net_dev, 726 "increasing TX queue size to minimum of %u\n", 727 txq_entries); 728 729 return efx_realloc_channels(efx, ring->rx_pending, txq_entries); 730 } 731 732 static int efx_ethtool_set_pauseparam(struct net_device *net_dev, 733 struct ethtool_pauseparam *pause) 734 { 735 struct efx_nic *efx = netdev_priv(net_dev); 736 u8 wanted_fc, old_fc; 737 u32 old_adv; 738 int rc = 0; 739 740 mutex_lock(&efx->mac_lock); 741 742 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) | 743 (pause->tx_pause ? EFX_FC_TX : 0) | 744 (pause->autoneg ? EFX_FC_AUTO : 0)); 745 746 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) { 747 netif_dbg(efx, drv, efx->net_dev, 748 "Flow control unsupported: tx ON rx OFF\n"); 749 rc = -EINVAL; 750 goto out; 751 } 752 753 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) { 754 netif_dbg(efx, drv, efx->net_dev, 755 "Autonegotiation is disabled\n"); 756 rc = -EINVAL; 757 goto out; 758 } 759 760 /* Hook for Falcon bug 11482 workaround */ 761 if (efx->type->prepare_enable_fc_tx && 762 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX)) 763 efx->type->prepare_enable_fc_tx(efx); 764 765 old_adv = efx->link_advertising[0]; 766 old_fc = efx->wanted_fc; 767 efx_link_set_wanted_fc(efx, wanted_fc); 768 if (efx->link_advertising[0] != old_adv || 769 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) { 770 rc = efx->phy_op->reconfigure(efx); 771 if (rc) { 772 netif_err(efx, drv, efx->net_dev, 773 "Unable to advertise requested flow " 774 "control setting\n"); 775 goto out; 776 } 777 } 778 779 /* Reconfigure the MAC. The PHY *may* generate a link state change event 780 * if the user just changed the advertised capabilities, but there's no 781 * harm doing this twice */ 782 efx_mac_reconfigure(efx); 783 784 out: 785 mutex_unlock(&efx->mac_lock); 786 787 return rc; 788 } 789 790 static void efx_ethtool_get_pauseparam(struct net_device *net_dev, 791 struct ethtool_pauseparam *pause) 792 { 793 struct efx_nic *efx = netdev_priv(net_dev); 794 795 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX); 796 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX); 797 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO); 798 } 799 800 static void efx_ethtool_get_wol(struct net_device *net_dev, 801 struct ethtool_wolinfo *wol) 802 { 803 struct efx_nic *efx = netdev_priv(net_dev); 804 return efx->type->get_wol(efx, wol); 805 } 806 807 808 static int efx_ethtool_set_wol(struct net_device *net_dev, 809 struct ethtool_wolinfo *wol) 810 { 811 struct efx_nic *efx = netdev_priv(net_dev); 812 return efx->type->set_wol(efx, wol->wolopts); 813 } 814 815 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) 816 { 817 struct efx_nic *efx = netdev_priv(net_dev); 818 int rc; 819 820 rc = efx->type->map_reset_flags(flags); 821 if (rc < 0) 822 return rc; 823 824 return efx_reset(efx, rc); 825 } 826 827 /* MAC address mask including only I/G bit */ 828 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; 829 830 #define IP4_ADDR_FULL_MASK ((__force __be32)~0) 831 #define IP_PROTO_FULL_MASK 0xFF 832 #define PORT_FULL_MASK ((__force __be16)~0) 833 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 834 835 static inline void ip6_fill_mask(__be32 *mask) 836 { 837 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0; 838 } 839 840 static int efx_ethtool_get_class_rule(struct efx_nic *efx, 841 struct ethtool_rx_flow_spec *rule, 842 u32 *rss_context) 843 { 844 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 845 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 846 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 847 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 848 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 849 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 850 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 851 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 852 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 853 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 854 struct efx_filter_spec spec; 855 int rc; 856 857 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, 858 rule->location, &spec); 859 if (rc) 860 return rc; 861 862 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP) 863 rule->ring_cookie = RX_CLS_FLOW_DISC; 864 else 865 rule->ring_cookie = spec.dmaq_id; 866 867 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 868 spec.ether_type == htons(ETH_P_IP) && 869 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 870 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 871 !(spec.match_flags & 872 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 873 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 874 EFX_FILTER_MATCH_IP_PROTO | 875 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 876 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 877 TCP_V4_FLOW : UDP_V4_FLOW); 878 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 879 ip_entry->ip4dst = spec.loc_host[0]; 880 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 881 } 882 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 883 ip_entry->ip4src = spec.rem_host[0]; 884 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 885 } 886 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 887 ip_entry->pdst = spec.loc_port; 888 ip_mask->pdst = PORT_FULL_MASK; 889 } 890 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 891 ip_entry->psrc = spec.rem_port; 892 ip_mask->psrc = PORT_FULL_MASK; 893 } 894 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 895 spec.ether_type == htons(ETH_P_IPV6) && 896 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 897 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 898 !(spec.match_flags & 899 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 900 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 901 EFX_FILTER_MATCH_IP_PROTO | 902 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 903 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 904 TCP_V6_FLOW : UDP_V6_FLOW); 905 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 906 memcpy(ip6_entry->ip6dst, spec.loc_host, 907 sizeof(ip6_entry->ip6dst)); 908 ip6_fill_mask(ip6_mask->ip6dst); 909 } 910 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 911 memcpy(ip6_entry->ip6src, spec.rem_host, 912 sizeof(ip6_entry->ip6src)); 913 ip6_fill_mask(ip6_mask->ip6src); 914 } 915 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 916 ip6_entry->pdst = spec.loc_port; 917 ip6_mask->pdst = PORT_FULL_MASK; 918 } 919 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 920 ip6_entry->psrc = spec.rem_port; 921 ip6_mask->psrc = PORT_FULL_MASK; 922 } 923 } else if (!(spec.match_flags & 924 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG | 925 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE | 926 EFX_FILTER_MATCH_OUTER_VID))) { 927 rule->flow_type = ETHER_FLOW; 928 if (spec.match_flags & 929 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) { 930 ether_addr_copy(mac_entry->h_dest, spec.loc_mac); 931 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC) 932 eth_broadcast_addr(mac_mask->h_dest); 933 else 934 ether_addr_copy(mac_mask->h_dest, 935 mac_addr_ig_mask); 936 } 937 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) { 938 ether_addr_copy(mac_entry->h_source, spec.rem_mac); 939 eth_broadcast_addr(mac_mask->h_source); 940 } 941 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) { 942 mac_entry->h_proto = spec.ether_type; 943 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 944 } 945 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 946 spec.ether_type == htons(ETH_P_IP) && 947 !(spec.match_flags & 948 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 949 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 950 EFX_FILTER_MATCH_IP_PROTO))) { 951 rule->flow_type = IPV4_USER_FLOW; 952 uip_entry->ip_ver = ETH_RX_NFC_IP4; 953 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 954 uip_mask->proto = IP_PROTO_FULL_MASK; 955 uip_entry->proto = spec.ip_proto; 956 } 957 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 958 uip_entry->ip4dst = spec.loc_host[0]; 959 uip_mask->ip4dst = IP4_ADDR_FULL_MASK; 960 } 961 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 962 uip_entry->ip4src = spec.rem_host[0]; 963 uip_mask->ip4src = IP4_ADDR_FULL_MASK; 964 } 965 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 966 spec.ether_type == htons(ETH_P_IPV6) && 967 !(spec.match_flags & 968 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 969 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 970 EFX_FILTER_MATCH_IP_PROTO))) { 971 rule->flow_type = IPV6_USER_FLOW; 972 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 973 uip6_mask->l4_proto = IP_PROTO_FULL_MASK; 974 uip6_entry->l4_proto = spec.ip_proto; 975 } 976 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 977 memcpy(uip6_entry->ip6dst, spec.loc_host, 978 sizeof(uip6_entry->ip6dst)); 979 ip6_fill_mask(uip6_mask->ip6dst); 980 } 981 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 982 memcpy(uip6_entry->ip6src, spec.rem_host, 983 sizeof(uip6_entry->ip6src)); 984 ip6_fill_mask(uip6_mask->ip6src); 985 } 986 } else { 987 /* The above should handle all filters that we insert */ 988 WARN_ON(1); 989 return -EINVAL; 990 } 991 992 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) { 993 rule->flow_type |= FLOW_EXT; 994 rule->h_ext.vlan_tci = spec.outer_vid; 995 rule->m_ext.vlan_tci = htons(0xfff); 996 } 997 998 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) { 999 rule->flow_type |= FLOW_RSS; 1000 *rss_context = spec.rss_context; 1001 } 1002 1003 return rc; 1004 } 1005 1006 static int 1007 efx_ethtool_get_rxnfc(struct net_device *net_dev, 1008 struct ethtool_rxnfc *info, u32 *rule_locs) 1009 { 1010 struct efx_nic *efx = netdev_priv(net_dev); 1011 u32 rss_context = 0; 1012 s32 rc = 0; 1013 1014 switch (info->cmd) { 1015 case ETHTOOL_GRXRINGS: 1016 info->data = efx->n_rx_channels; 1017 return 0; 1018 1019 case ETHTOOL_GRXFH: { 1020 struct efx_rss_context *ctx = &efx->rss_context; 1021 1022 mutex_lock(&efx->rss_lock); 1023 if (info->flow_type & FLOW_RSS && info->rss_context) { 1024 ctx = efx_find_rss_context_entry(efx, info->rss_context); 1025 if (!ctx) { 1026 rc = -ENOENT; 1027 goto out_unlock; 1028 } 1029 } 1030 info->data = 0; 1031 if (!efx_rss_active(ctx)) /* No RSS */ 1032 goto out_unlock; 1033 switch (info->flow_type & ~FLOW_RSS) { 1034 case UDP_V4_FLOW: 1035 if (ctx->rx_hash_udp_4tuple) 1036 /* fall through */ 1037 case TCP_V4_FLOW: 1038 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1039 /* fall through */ 1040 case SCTP_V4_FLOW: 1041 case AH_ESP_V4_FLOW: 1042 case IPV4_FLOW: 1043 info->data |= RXH_IP_SRC | RXH_IP_DST; 1044 break; 1045 case UDP_V6_FLOW: 1046 if (ctx->rx_hash_udp_4tuple) 1047 /* fall through */ 1048 case TCP_V6_FLOW: 1049 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1050 /* fall through */ 1051 case SCTP_V6_FLOW: 1052 case AH_ESP_V6_FLOW: 1053 case IPV6_FLOW: 1054 info->data |= RXH_IP_SRC | RXH_IP_DST; 1055 break; 1056 default: 1057 break; 1058 } 1059 out_unlock: 1060 mutex_unlock(&efx->rss_lock); 1061 return rc; 1062 } 1063 1064 case ETHTOOL_GRXCLSRLCNT: 1065 info->data = efx_filter_get_rx_id_limit(efx); 1066 if (info->data == 0) 1067 return -EOPNOTSUPP; 1068 info->data |= RX_CLS_LOC_SPECIAL; 1069 info->rule_cnt = 1070 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL); 1071 return 0; 1072 1073 case ETHTOOL_GRXCLSRULE: 1074 if (efx_filter_get_rx_id_limit(efx) == 0) 1075 return -EOPNOTSUPP; 1076 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context); 1077 if (rc < 0) 1078 return rc; 1079 if (info->fs.flow_type & FLOW_RSS) 1080 info->rss_context = rss_context; 1081 return 0; 1082 1083 case ETHTOOL_GRXCLSRLALL: 1084 info->data = efx_filter_get_rx_id_limit(efx); 1085 if (info->data == 0) 1086 return -EOPNOTSUPP; 1087 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL, 1088 rule_locs, info->rule_cnt); 1089 if (rc < 0) 1090 return rc; 1091 info->rule_cnt = rc; 1092 return 0; 1093 1094 default: 1095 return -EOPNOTSUPP; 1096 } 1097 } 1098 1099 static inline bool ip6_mask_is_full(__be32 mask[4]) 1100 { 1101 return !~(mask[0] & mask[1] & mask[2] & mask[3]); 1102 } 1103 1104 static inline bool ip6_mask_is_empty(__be32 mask[4]) 1105 { 1106 return !(mask[0] | mask[1] | mask[2] | mask[3]); 1107 } 1108 1109 static int efx_ethtool_set_class_rule(struct efx_nic *efx, 1110 struct ethtool_rx_flow_spec *rule, 1111 u32 rss_context) 1112 { 1113 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 1114 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 1115 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 1116 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 1117 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 1118 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 1119 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 1120 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 1121 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS); 1122 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 1123 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 1124 enum efx_filter_flags flags = 0; 1125 struct efx_filter_spec spec; 1126 int rc; 1127 1128 /* Check that user wants us to choose the location */ 1129 if (rule->location != RX_CLS_LOC_ANY) 1130 return -EINVAL; 1131 1132 /* Range-check ring_cookie */ 1133 if (rule->ring_cookie >= efx->n_rx_channels && 1134 rule->ring_cookie != RX_CLS_FLOW_DISC) 1135 return -EINVAL; 1136 1137 /* Check for unsupported extensions */ 1138 if ((rule->flow_type & FLOW_EXT) && 1139 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 1140 rule->m_ext.data[1])) 1141 return -EINVAL; 1142 1143 if (efx->rx_scatter) 1144 flags |= EFX_FILTER_FLAG_RX_SCATTER; 1145 if (rule->flow_type & FLOW_RSS) 1146 flags |= EFX_FILTER_FLAG_RX_RSS; 1147 1148 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags, 1149 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 1150 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 1151 1152 if (rule->flow_type & FLOW_RSS) 1153 spec.rss_context = rss_context; 1154 1155 switch (flow_type) { 1156 case TCP_V4_FLOW: 1157 case UDP_V4_FLOW: 1158 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 1159 EFX_FILTER_MATCH_IP_PROTO); 1160 spec.ether_type = htons(ETH_P_IP); 1161 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP 1162 : IPPROTO_UDP; 1163 if (ip_mask->ip4dst) { 1164 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1165 return -EINVAL; 1166 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1167 spec.loc_host[0] = ip_entry->ip4dst; 1168 } 1169 if (ip_mask->ip4src) { 1170 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 1171 return -EINVAL; 1172 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1173 spec.rem_host[0] = ip_entry->ip4src; 1174 } 1175 if (ip_mask->pdst) { 1176 if (ip_mask->pdst != PORT_FULL_MASK) 1177 return -EINVAL; 1178 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 1179 spec.loc_port = ip_entry->pdst; 1180 } 1181 if (ip_mask->psrc) { 1182 if (ip_mask->psrc != PORT_FULL_MASK) 1183 return -EINVAL; 1184 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 1185 spec.rem_port = ip_entry->psrc; 1186 } 1187 if (ip_mask->tos) 1188 return -EINVAL; 1189 break; 1190 1191 case TCP_V6_FLOW: 1192 case UDP_V6_FLOW: 1193 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 1194 EFX_FILTER_MATCH_IP_PROTO); 1195 spec.ether_type = htons(ETH_P_IPV6); 1196 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP 1197 : IPPROTO_UDP; 1198 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { 1199 if (!ip6_mask_is_full(ip6_mask->ip6dst)) 1200 return -EINVAL; 1201 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1202 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host)); 1203 } 1204 if (!ip6_mask_is_empty(ip6_mask->ip6src)) { 1205 if (!ip6_mask_is_full(ip6_mask->ip6src)) 1206 return -EINVAL; 1207 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1208 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host)); 1209 } 1210 if (ip6_mask->pdst) { 1211 if (ip6_mask->pdst != PORT_FULL_MASK) 1212 return -EINVAL; 1213 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 1214 spec.loc_port = ip6_entry->pdst; 1215 } 1216 if (ip6_mask->psrc) { 1217 if (ip6_mask->psrc != PORT_FULL_MASK) 1218 return -EINVAL; 1219 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 1220 spec.rem_port = ip6_entry->psrc; 1221 } 1222 if (ip6_mask->tclass) 1223 return -EINVAL; 1224 break; 1225 1226 case IPV4_USER_FLOW: 1227 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver || 1228 uip_entry->ip_ver != ETH_RX_NFC_IP4) 1229 return -EINVAL; 1230 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1231 spec.ether_type = htons(ETH_P_IP); 1232 if (uip_mask->ip4dst) { 1233 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1234 return -EINVAL; 1235 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1236 spec.loc_host[0] = uip_entry->ip4dst; 1237 } 1238 if (uip_mask->ip4src) { 1239 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK) 1240 return -EINVAL; 1241 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1242 spec.rem_host[0] = uip_entry->ip4src; 1243 } 1244 if (uip_mask->proto) { 1245 if (uip_mask->proto != IP_PROTO_FULL_MASK) 1246 return -EINVAL; 1247 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1248 spec.ip_proto = uip_entry->proto; 1249 } 1250 break; 1251 1252 case IPV6_USER_FLOW: 1253 if (uip6_mask->l4_4_bytes || uip6_mask->tclass) 1254 return -EINVAL; 1255 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1256 spec.ether_type = htons(ETH_P_IPV6); 1257 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) { 1258 if (!ip6_mask_is_full(uip6_mask->ip6dst)) 1259 return -EINVAL; 1260 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1261 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host)); 1262 } 1263 if (!ip6_mask_is_empty(uip6_mask->ip6src)) { 1264 if (!ip6_mask_is_full(uip6_mask->ip6src)) 1265 return -EINVAL; 1266 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1267 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host)); 1268 } 1269 if (uip6_mask->l4_proto) { 1270 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK) 1271 return -EINVAL; 1272 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1273 spec.ip_proto = uip6_entry->l4_proto; 1274 } 1275 break; 1276 1277 case ETHER_FLOW: 1278 if (!is_zero_ether_addr(mac_mask->h_dest)) { 1279 if (ether_addr_equal(mac_mask->h_dest, 1280 mac_addr_ig_mask)) 1281 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG; 1282 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 1283 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC; 1284 else 1285 return -EINVAL; 1286 ether_addr_copy(spec.loc_mac, mac_entry->h_dest); 1287 } 1288 if (!is_zero_ether_addr(mac_mask->h_source)) { 1289 if (!is_broadcast_ether_addr(mac_mask->h_source)) 1290 return -EINVAL; 1291 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC; 1292 ether_addr_copy(spec.rem_mac, mac_entry->h_source); 1293 } 1294 if (mac_mask->h_proto) { 1295 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 1296 return -EINVAL; 1297 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE; 1298 spec.ether_type = mac_entry->h_proto; 1299 } 1300 break; 1301 1302 default: 1303 return -EINVAL; 1304 } 1305 1306 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 1307 if (rule->m_ext.vlan_tci != htons(0xfff)) 1308 return -EINVAL; 1309 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID; 1310 spec.outer_vid = rule->h_ext.vlan_tci; 1311 } 1312 1313 rc = efx_filter_insert_filter(efx, &spec, true); 1314 if (rc < 0) 1315 return rc; 1316 1317 rule->location = rc; 1318 return 0; 1319 } 1320 1321 static int efx_ethtool_set_rxnfc(struct net_device *net_dev, 1322 struct ethtool_rxnfc *info) 1323 { 1324 struct efx_nic *efx = netdev_priv(net_dev); 1325 1326 if (efx_filter_get_rx_id_limit(efx) == 0) 1327 return -EOPNOTSUPP; 1328 1329 switch (info->cmd) { 1330 case ETHTOOL_SRXCLSRLINS: 1331 return efx_ethtool_set_class_rule(efx, &info->fs, 1332 info->rss_context); 1333 1334 case ETHTOOL_SRXCLSRLDEL: 1335 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, 1336 info->fs.location); 1337 1338 default: 1339 return -EOPNOTSUPP; 1340 } 1341 } 1342 1343 static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1344 { 1345 struct efx_nic *efx = netdev_priv(net_dev); 1346 1347 if (efx->n_rx_channels == 1) 1348 return 0; 1349 return ARRAY_SIZE(efx->rss_context.rx_indir_table); 1350 } 1351 1352 static u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev) 1353 { 1354 struct efx_nic *efx = netdev_priv(net_dev); 1355 1356 return efx->type->rx_hash_key_size; 1357 } 1358 1359 static int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key, 1360 u8 *hfunc) 1361 { 1362 struct efx_nic *efx = netdev_priv(net_dev); 1363 int rc; 1364 1365 rc = efx->type->rx_pull_rss_config(efx); 1366 if (rc) 1367 return rc; 1368 1369 if (hfunc) 1370 *hfunc = ETH_RSS_HASH_TOP; 1371 if (indir) 1372 memcpy(indir, efx->rss_context.rx_indir_table, 1373 sizeof(efx->rss_context.rx_indir_table)); 1374 if (key) 1375 memcpy(key, efx->rss_context.rx_hash_key, 1376 efx->type->rx_hash_key_size); 1377 return 0; 1378 } 1379 1380 static int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir, 1381 const u8 *key, const u8 hfunc) 1382 { 1383 struct efx_nic *efx = netdev_priv(net_dev); 1384 1385 /* Hash function is Toeplitz, cannot be changed */ 1386 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 1387 return -EOPNOTSUPP; 1388 if (!indir && !key) 1389 return 0; 1390 1391 if (!key) 1392 key = efx->rss_context.rx_hash_key; 1393 if (!indir) 1394 indir = efx->rss_context.rx_indir_table; 1395 1396 return efx->type->rx_push_rss_config(efx, true, indir, key); 1397 } 1398 1399 static int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir, 1400 u8 *key, u8 *hfunc, u32 rss_context) 1401 { 1402 struct efx_nic *efx = netdev_priv(net_dev); 1403 struct efx_rss_context *ctx; 1404 int rc = 0; 1405 1406 if (!efx->type->rx_pull_rss_context_config) 1407 return -EOPNOTSUPP; 1408 1409 mutex_lock(&efx->rss_lock); 1410 ctx = efx_find_rss_context_entry(efx, rss_context); 1411 if (!ctx) { 1412 rc = -ENOENT; 1413 goto out_unlock; 1414 } 1415 rc = efx->type->rx_pull_rss_context_config(efx, ctx); 1416 if (rc) 1417 goto out_unlock; 1418 1419 if (hfunc) 1420 *hfunc = ETH_RSS_HASH_TOP; 1421 if (indir) 1422 memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table)); 1423 if (key) 1424 memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size); 1425 out_unlock: 1426 mutex_unlock(&efx->rss_lock); 1427 return rc; 1428 } 1429 1430 static int efx_ethtool_set_rxfh_context(struct net_device *net_dev, 1431 const u32 *indir, const u8 *key, 1432 const u8 hfunc, u32 *rss_context, 1433 bool delete) 1434 { 1435 struct efx_nic *efx = netdev_priv(net_dev); 1436 struct efx_rss_context *ctx; 1437 bool allocated = false; 1438 int rc; 1439 1440 if (!efx->type->rx_push_rss_context_config) 1441 return -EOPNOTSUPP; 1442 /* Hash function is Toeplitz, cannot be changed */ 1443 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 1444 return -EOPNOTSUPP; 1445 1446 mutex_lock(&efx->rss_lock); 1447 1448 if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { 1449 if (delete) { 1450 /* alloc + delete == Nothing to do */ 1451 rc = -EINVAL; 1452 goto out_unlock; 1453 } 1454 ctx = efx_alloc_rss_context_entry(efx); 1455 if (!ctx) { 1456 rc = -ENOMEM; 1457 goto out_unlock; 1458 } 1459 ctx->context_id = EFX_EF10_RSS_CONTEXT_INVALID; 1460 /* Initialise indir table and key to defaults */ 1461 efx_set_default_rx_indir_table(efx, ctx); 1462 netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key)); 1463 allocated = true; 1464 } else { 1465 ctx = efx_find_rss_context_entry(efx, *rss_context); 1466 if (!ctx) { 1467 rc = -ENOENT; 1468 goto out_unlock; 1469 } 1470 } 1471 1472 if (delete) { 1473 /* delete this context */ 1474 rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL); 1475 if (!rc) 1476 efx_free_rss_context_entry(ctx); 1477 goto out_unlock; 1478 } 1479 1480 if (!key) 1481 key = ctx->rx_hash_key; 1482 if (!indir) 1483 indir = ctx->rx_indir_table; 1484 1485 rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key); 1486 if (rc && allocated) 1487 efx_free_rss_context_entry(ctx); 1488 else 1489 *rss_context = ctx->user_id; 1490 out_unlock: 1491 mutex_unlock(&efx->rss_lock); 1492 return rc; 1493 } 1494 1495 static int efx_ethtool_get_ts_info(struct net_device *net_dev, 1496 struct ethtool_ts_info *ts_info) 1497 { 1498 struct efx_nic *efx = netdev_priv(net_dev); 1499 1500 /* Software capabilities */ 1501 ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE | 1502 SOF_TIMESTAMPING_SOFTWARE); 1503 ts_info->phc_index = -1; 1504 1505 efx_ptp_get_ts_info(efx, ts_info); 1506 return 0; 1507 } 1508 1509 static int efx_ethtool_get_module_eeprom(struct net_device *net_dev, 1510 struct ethtool_eeprom *ee, 1511 u8 *data) 1512 { 1513 struct efx_nic *efx = netdev_priv(net_dev); 1514 int ret; 1515 1516 if (!efx->phy_op || !efx->phy_op->get_module_eeprom) 1517 return -EOPNOTSUPP; 1518 1519 mutex_lock(&efx->mac_lock); 1520 ret = efx->phy_op->get_module_eeprom(efx, ee, data); 1521 mutex_unlock(&efx->mac_lock); 1522 1523 return ret; 1524 } 1525 1526 static int efx_ethtool_get_module_info(struct net_device *net_dev, 1527 struct ethtool_modinfo *modinfo) 1528 { 1529 struct efx_nic *efx = netdev_priv(net_dev); 1530 int ret; 1531 1532 if (!efx->phy_op || !efx->phy_op->get_module_info) 1533 return -EOPNOTSUPP; 1534 1535 mutex_lock(&efx->mac_lock); 1536 ret = efx->phy_op->get_module_info(efx, modinfo); 1537 mutex_unlock(&efx->mac_lock); 1538 1539 return ret; 1540 } 1541 1542 static int efx_ethtool_get_fecparam(struct net_device *net_dev, 1543 struct ethtool_fecparam *fecparam) 1544 { 1545 struct efx_nic *efx = netdev_priv(net_dev); 1546 int rc; 1547 1548 if (!efx->phy_op || !efx->phy_op->get_fecparam) 1549 return -EOPNOTSUPP; 1550 mutex_lock(&efx->mac_lock); 1551 rc = efx->phy_op->get_fecparam(efx, fecparam); 1552 mutex_unlock(&efx->mac_lock); 1553 1554 return rc; 1555 } 1556 1557 static int efx_ethtool_set_fecparam(struct net_device *net_dev, 1558 struct ethtool_fecparam *fecparam) 1559 { 1560 struct efx_nic *efx = netdev_priv(net_dev); 1561 int rc; 1562 1563 if (!efx->phy_op || !efx->phy_op->get_fecparam) 1564 return -EOPNOTSUPP; 1565 mutex_lock(&efx->mac_lock); 1566 rc = efx->phy_op->set_fecparam(efx, fecparam); 1567 mutex_unlock(&efx->mac_lock); 1568 1569 return rc; 1570 } 1571 1572 const struct ethtool_ops efx_ethtool_ops = { 1573 .get_drvinfo = efx_ethtool_get_drvinfo, 1574 .get_regs_len = efx_ethtool_get_regs_len, 1575 .get_regs = efx_ethtool_get_regs, 1576 .get_msglevel = efx_ethtool_get_msglevel, 1577 .set_msglevel = efx_ethtool_set_msglevel, 1578 .nway_reset = efx_ethtool_nway_reset, 1579 .get_link = ethtool_op_get_link, 1580 .get_coalesce = efx_ethtool_get_coalesce, 1581 .set_coalesce = efx_ethtool_set_coalesce, 1582 .get_ringparam = efx_ethtool_get_ringparam, 1583 .set_ringparam = efx_ethtool_set_ringparam, 1584 .get_pauseparam = efx_ethtool_get_pauseparam, 1585 .set_pauseparam = efx_ethtool_set_pauseparam, 1586 .get_sset_count = efx_ethtool_get_sset_count, 1587 .self_test = efx_ethtool_self_test, 1588 .get_strings = efx_ethtool_get_strings, 1589 .set_phys_id = efx_ethtool_phys_id, 1590 .get_ethtool_stats = efx_ethtool_get_stats, 1591 .get_wol = efx_ethtool_get_wol, 1592 .set_wol = efx_ethtool_set_wol, 1593 .reset = efx_ethtool_reset, 1594 .get_rxnfc = efx_ethtool_get_rxnfc, 1595 .set_rxnfc = efx_ethtool_set_rxnfc, 1596 .get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size, 1597 .get_rxfh_key_size = efx_ethtool_get_rxfh_key_size, 1598 .get_rxfh = efx_ethtool_get_rxfh, 1599 .set_rxfh = efx_ethtool_set_rxfh, 1600 .get_rxfh_context = efx_ethtool_get_rxfh_context, 1601 .set_rxfh_context = efx_ethtool_set_rxfh_context, 1602 .get_ts_info = efx_ethtool_get_ts_info, 1603 .get_module_info = efx_ethtool_get_module_info, 1604 .get_module_eeprom = efx_ethtool_get_module_eeprom, 1605 .get_link_ksettings = efx_ethtool_get_link_ksettings, 1606 .set_link_ksettings = efx_ethtool_set_link_ksettings, 1607 .get_fecparam = efx_ethtool_get_fecparam, 1608 .set_fecparam = efx_ethtool_set_fecparam, 1609 }; 1610