1 // SPDX-License-Identifier: GPL-2.0-only 2 /**************************************************************************** 3 * Driver for Solarflare network controllers and boards 4 * Copyright 2019 Solarflare Communications Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 as published 8 * by the Free Software Foundation, incorporated herein by reference. 9 */ 10 #include <linux/module.h> 11 #include <linux/netdevice.h> 12 #include "net_driver.h" 13 #include "mcdi.h" 14 #include "nic.h" 15 #include "selftest.h" 16 #include "rx_common.h" 17 #include "ethtool_common.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 int 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 void efx_ethtool_get_drvinfo(struct net_device *net_dev, 103 struct ethtool_drvinfo *info) 104 { 105 struct efx_nic *efx = netdev_priv(net_dev); 106 107 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); 108 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version)); 109 efx_mcdi_print_fwver(efx, info->fw_version, 110 sizeof(info->fw_version)); 111 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info)); 112 } 113 114 u32 efx_ethtool_get_msglevel(struct net_device *net_dev) 115 { 116 struct efx_nic *efx = netdev_priv(net_dev); 117 118 return efx->msg_enable; 119 } 120 121 void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable) 122 { 123 struct efx_nic *efx = netdev_priv(net_dev); 124 125 efx->msg_enable = msg_enable; 126 } 127 128 void efx_ethtool_self_test(struct net_device *net_dev, 129 struct ethtool_test *test, u64 *data) 130 { 131 struct efx_nic *efx = netdev_priv(net_dev); 132 struct efx_self_tests *efx_tests; 133 bool already_up; 134 int rc = -ENOMEM; 135 136 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL); 137 if (!efx_tests) 138 goto fail; 139 140 if (efx->state != STATE_READY) { 141 rc = -EBUSY; 142 goto out; 143 } 144 145 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n", 146 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 147 148 /* We need rx buffers and interrupts. */ 149 already_up = (efx->net_dev->flags & IFF_UP); 150 if (!already_up) { 151 rc = dev_open(efx->net_dev, NULL); 152 if (rc) { 153 netif_err(efx, drv, efx->net_dev, 154 "failed opening device.\n"); 155 goto out; 156 } 157 } 158 159 rc = efx_selftest(efx, efx_tests, test->flags); 160 161 if (!already_up) 162 dev_close(efx->net_dev); 163 164 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n", 165 rc == 0 ? "passed" : "failed", 166 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); 167 168 out: 169 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data); 170 kfree(efx_tests); 171 fail: 172 if (rc) 173 test->flags |= ETH_TEST_FL_FAILED; 174 } 175 176 void efx_ethtool_get_pauseparam(struct net_device *net_dev, 177 struct ethtool_pauseparam *pause) 178 { 179 struct efx_nic *efx = netdev_priv(net_dev); 180 181 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX); 182 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX); 183 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO); 184 } 185 186 int efx_ethtool_set_pauseparam(struct net_device *net_dev, 187 struct ethtool_pauseparam *pause) 188 { 189 struct efx_nic *efx = netdev_priv(net_dev); 190 u8 wanted_fc, old_fc; 191 u32 old_adv; 192 int rc = 0; 193 194 mutex_lock(&efx->mac_lock); 195 196 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) | 197 (pause->tx_pause ? EFX_FC_TX : 0) | 198 (pause->autoneg ? EFX_FC_AUTO : 0)); 199 200 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) { 201 netif_dbg(efx, drv, efx->net_dev, 202 "Flow control unsupported: tx ON rx OFF\n"); 203 rc = -EINVAL; 204 goto out; 205 } 206 207 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) { 208 netif_dbg(efx, drv, efx->net_dev, 209 "Autonegotiation is disabled\n"); 210 rc = -EINVAL; 211 goto out; 212 } 213 214 /* Hook for Falcon bug 11482 workaround */ 215 if (efx->type->prepare_enable_fc_tx && 216 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX)) 217 efx->type->prepare_enable_fc_tx(efx); 218 219 old_adv = efx->link_advertising[0]; 220 old_fc = efx->wanted_fc; 221 efx_link_set_wanted_fc(efx, wanted_fc); 222 if (efx->link_advertising[0] != old_adv || 223 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) { 224 rc = efx->phy_op->reconfigure(efx); 225 if (rc) { 226 netif_err(efx, drv, efx->net_dev, 227 "Unable to advertise requested flow " 228 "control setting\n"); 229 goto out; 230 } 231 } 232 233 /* Reconfigure the MAC. The PHY *may* generate a link state change event 234 * if the user just changed the advertised capabilities, but there's no 235 * harm doing this twice */ 236 efx_mac_reconfigure(efx, false); 237 238 out: 239 mutex_unlock(&efx->mac_lock); 240 241 return rc; 242 } 243 244 /** 245 * efx_fill_test - fill in an individual self-test entry 246 * @test_index: Index of the test 247 * @strings: Ethtool strings, or %NULL 248 * @data: Ethtool test results, or %NULL 249 * @test: Pointer to test result (used only if data != %NULL) 250 * @unit_format: Unit name format (e.g. "chan\%d") 251 * @unit_id: Unit id (e.g. 0 for "chan0") 252 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent") 253 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent") 254 * 255 * Fill in an individual self-test entry. 256 */ 257 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data, 258 int *test, const char *unit_format, int unit_id, 259 const char *test_format, const char *test_id) 260 { 261 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN]; 262 263 /* Fill data value, if applicable */ 264 if (data) 265 data[test_index] = *test; 266 267 /* Fill string, if applicable */ 268 if (strings) { 269 if (strchr(unit_format, '%')) 270 snprintf(unit_str, sizeof(unit_str), 271 unit_format, unit_id); 272 else 273 strcpy(unit_str, unit_format); 274 snprintf(test_str, sizeof(test_str), test_format, test_id); 275 snprintf(strings + test_index * ETH_GSTRING_LEN, 276 ETH_GSTRING_LEN, 277 "%-6s %-24s", unit_str, test_str); 278 } 279 } 280 281 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel 282 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label 283 #define EFX_LOOPBACK_NAME(_mode, _counter) \ 284 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode) 285 286 /** 287 * efx_fill_loopback_test - fill in a block of loopback self-test entries 288 * @efx: Efx NIC 289 * @lb_tests: Efx loopback self-test results structure 290 * @mode: Loopback test mode 291 * @test_index: Starting index of the test 292 * @strings: Ethtool strings, or %NULL 293 * @data: Ethtool test results, or %NULL 294 * 295 * Fill in a block of loopback self-test entries. Return new test 296 * index. 297 */ 298 static int efx_fill_loopback_test(struct efx_nic *efx, 299 struct efx_loopback_self_tests *lb_tests, 300 enum efx_loopback_mode mode, 301 unsigned int test_index, 302 u8 *strings, u64 *data) 303 { 304 struct efx_channel *channel = 305 efx_get_channel(efx, efx->tx_channel_offset); 306 struct efx_tx_queue *tx_queue; 307 308 efx_for_each_channel_tx_queue(tx_queue, channel) { 309 efx_fill_test(test_index++, strings, data, 310 &lb_tests->tx_sent[tx_queue->label], 311 EFX_TX_QUEUE_NAME(tx_queue), 312 EFX_LOOPBACK_NAME(mode, "tx_sent")); 313 efx_fill_test(test_index++, strings, data, 314 &lb_tests->tx_done[tx_queue->label], 315 EFX_TX_QUEUE_NAME(tx_queue), 316 EFX_LOOPBACK_NAME(mode, "tx_done")); 317 } 318 efx_fill_test(test_index++, strings, data, 319 &lb_tests->rx_good, 320 "rx", 0, 321 EFX_LOOPBACK_NAME(mode, "rx_good")); 322 efx_fill_test(test_index++, strings, data, 323 &lb_tests->rx_bad, 324 "rx", 0, 325 EFX_LOOPBACK_NAME(mode, "rx_bad")); 326 327 return test_index; 328 } 329 330 /** 331 * efx_ethtool_fill_self_tests - get self-test details 332 * @efx: Efx NIC 333 * @tests: Efx self-test results structure, or %NULL 334 * @strings: Ethtool strings, or %NULL 335 * @data: Ethtool test results, or %NULL 336 * 337 * Get self-test number of strings, strings, and/or test results. 338 * Return number of strings (== number of test results). 339 * 340 * The reason for merging these three functions is to make sure that 341 * they can never be inconsistent. 342 */ 343 int efx_ethtool_fill_self_tests(struct efx_nic *efx, 344 struct efx_self_tests *tests, 345 u8 *strings, u64 *data) 346 { 347 struct efx_channel *channel; 348 unsigned int n = 0, i; 349 enum efx_loopback_mode mode; 350 351 efx_fill_test(n++, strings, data, &tests->phy_alive, 352 "phy", 0, "alive", NULL); 353 efx_fill_test(n++, strings, data, &tests->nvram, 354 "core", 0, "nvram", NULL); 355 efx_fill_test(n++, strings, data, &tests->interrupt, 356 "core", 0, "interrupt", NULL); 357 358 /* Event queues */ 359 efx_for_each_channel(channel, efx) { 360 efx_fill_test(n++, strings, data, 361 &tests->eventq_dma[channel->channel], 362 EFX_CHANNEL_NAME(channel), 363 "eventq.dma", NULL); 364 efx_fill_test(n++, strings, data, 365 &tests->eventq_int[channel->channel], 366 EFX_CHANNEL_NAME(channel), 367 "eventq.int", NULL); 368 } 369 370 efx_fill_test(n++, strings, data, &tests->memory, 371 "core", 0, "memory", NULL); 372 efx_fill_test(n++, strings, data, &tests->registers, 373 "core", 0, "registers", NULL); 374 375 if (efx->phy_op->run_tests != NULL) { 376 EFX_WARN_ON_PARANOID(efx->phy_op->test_name == NULL); 377 378 for (i = 0; true; ++i) { 379 const char *name; 380 381 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS); 382 name = efx->phy_op->test_name(efx, i); 383 if (name == NULL) 384 break; 385 386 efx_fill_test(n++, strings, data, &tests->phy_ext[i], 387 "phy", 0, name, NULL); 388 } 389 } 390 391 /* Loopback tests */ 392 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) { 393 if (!(efx->loopback_modes & (1 << mode))) 394 continue; 395 n = efx_fill_loopback_test(efx, 396 &tests->loopback[mode], mode, n, 397 strings, data); 398 } 399 400 return n; 401 } 402 403 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings) 404 { 405 size_t n_stats = 0; 406 struct efx_channel *channel; 407 408 efx_for_each_channel(channel, efx) { 409 if (efx_channel_has_tx_queues(channel)) { 410 n_stats++; 411 if (strings != NULL) { 412 snprintf(strings, ETH_GSTRING_LEN, 413 "tx-%u.tx_packets", 414 channel->tx_queue[0].queue / 415 EFX_TXQ_TYPES); 416 417 strings += ETH_GSTRING_LEN; 418 } 419 } 420 } 421 efx_for_each_channel(channel, efx) { 422 if (efx_channel_has_rx_queue(channel)) { 423 n_stats++; 424 if (strings != NULL) { 425 snprintf(strings, ETH_GSTRING_LEN, 426 "rx-%d.rx_packets", channel->channel); 427 strings += ETH_GSTRING_LEN; 428 } 429 } 430 } 431 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 432 unsigned short xdp; 433 434 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 435 n_stats++; 436 if (strings) { 437 snprintf(strings, ETH_GSTRING_LEN, 438 "tx-xdp-cpu-%hu.tx_packets", xdp); 439 strings += ETH_GSTRING_LEN; 440 } 441 } 442 } 443 444 return n_stats; 445 } 446 447 int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set) 448 { 449 struct efx_nic *efx = netdev_priv(net_dev); 450 451 switch (string_set) { 452 case ETH_SS_STATS: 453 return efx->type->describe_stats(efx, NULL) + 454 EFX_ETHTOOL_SW_STAT_COUNT + 455 efx_describe_per_queue_stats(efx, NULL) + 456 efx_ptp_describe_stats(efx, NULL); 457 case ETH_SS_TEST: 458 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL); 459 default: 460 return -EINVAL; 461 } 462 } 463 464 void efx_ethtool_get_strings(struct net_device *net_dev, 465 u32 string_set, u8 *strings) 466 { 467 struct efx_nic *efx = netdev_priv(net_dev); 468 int i; 469 470 switch (string_set) { 471 case ETH_SS_STATS: 472 strings += (efx->type->describe_stats(efx, strings) * 473 ETH_GSTRING_LEN); 474 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) 475 strlcpy(strings + i * ETH_GSTRING_LEN, 476 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN); 477 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN; 478 strings += (efx_describe_per_queue_stats(efx, strings) * 479 ETH_GSTRING_LEN); 480 efx_ptp_describe_stats(efx, strings); 481 break; 482 case ETH_SS_TEST: 483 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL); 484 break; 485 default: 486 /* No other string sets */ 487 break; 488 } 489 } 490 491 void efx_ethtool_get_stats(struct net_device *net_dev, 492 struct ethtool_stats *stats, 493 u64 *data) 494 { 495 struct efx_nic *efx = netdev_priv(net_dev); 496 const struct efx_sw_stat_desc *stat; 497 struct efx_channel *channel; 498 struct efx_tx_queue *tx_queue; 499 struct efx_rx_queue *rx_queue; 500 int i; 501 502 spin_lock_bh(&efx->stats_lock); 503 504 /* Get NIC statistics */ 505 data += efx->type->update_stats(efx, data, NULL); 506 507 /* Get software statistics */ 508 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) { 509 stat = &efx_sw_stat_desc[i]; 510 switch (stat->source) { 511 case EFX_ETHTOOL_STAT_SOURCE_nic: 512 data[i] = stat->get_stat((void *)efx + stat->offset); 513 break; 514 case EFX_ETHTOOL_STAT_SOURCE_channel: 515 data[i] = 0; 516 efx_for_each_channel(channel, efx) 517 data[i] += stat->get_stat((void *)channel + 518 stat->offset); 519 break; 520 case EFX_ETHTOOL_STAT_SOURCE_tx_queue: 521 data[i] = 0; 522 efx_for_each_channel(channel, efx) { 523 efx_for_each_channel_tx_queue(tx_queue, channel) 524 data[i] += 525 stat->get_stat((void *)tx_queue 526 + stat->offset); 527 } 528 break; 529 } 530 } 531 data += EFX_ETHTOOL_SW_STAT_COUNT; 532 533 spin_unlock_bh(&efx->stats_lock); 534 535 efx_for_each_channel(channel, efx) { 536 if (efx_channel_has_tx_queues(channel)) { 537 *data = 0; 538 efx_for_each_channel_tx_queue(tx_queue, channel) { 539 *data += tx_queue->tx_packets; 540 } 541 data++; 542 } 543 } 544 efx_for_each_channel(channel, efx) { 545 if (efx_channel_has_rx_queue(channel)) { 546 *data = 0; 547 efx_for_each_channel_rx_queue(rx_queue, channel) { 548 *data += rx_queue->rx_packets; 549 } 550 data++; 551 } 552 } 553 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 554 int xdp; 555 556 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 557 data[0] = efx->xdp_tx_queues[xdp]->tx_packets; 558 data++; 559 } 560 } 561 562 efx_ptp_update_stats(efx, data); 563 } 564 565 /* This must be called with rtnl_lock held. */ 566 int efx_ethtool_get_link_ksettings(struct net_device *net_dev, 567 struct ethtool_link_ksettings *cmd) 568 { 569 struct efx_nic *efx = netdev_priv(net_dev); 570 struct efx_link_state *link_state = &efx->link_state; 571 u32 supported; 572 573 mutex_lock(&efx->mac_lock); 574 efx->phy_op->get_link_ksettings(efx, cmd); 575 mutex_unlock(&efx->mac_lock); 576 577 /* Both MACs support pause frames (bidirectional and respond-only) */ 578 ethtool_convert_link_mode_to_legacy_u32(&supported, 579 cmd->link_modes.supported); 580 581 supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause; 582 583 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, 584 supported); 585 586 if (LOOPBACK_INTERNAL(efx)) { 587 cmd->base.speed = link_state->speed; 588 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; 589 } 590 591 return 0; 592 } 593 594 /* This must be called with rtnl_lock held. */ 595 int efx_ethtool_set_link_ksettings(struct net_device *net_dev, 596 const struct ethtool_link_ksettings *cmd) 597 { 598 struct efx_nic *efx = netdev_priv(net_dev); 599 int rc; 600 601 /* GMAC does not support 1000Mbps HD */ 602 if ((cmd->base.speed == SPEED_1000) && 603 (cmd->base.duplex != DUPLEX_FULL)) { 604 netif_dbg(efx, drv, efx->net_dev, 605 "rejecting unsupported 1000Mbps HD setting\n"); 606 return -EINVAL; 607 } 608 609 mutex_lock(&efx->mac_lock); 610 rc = efx->phy_op->set_link_ksettings(efx, cmd); 611 mutex_unlock(&efx->mac_lock); 612 return rc; 613 } 614 615 int efx_ethtool_get_fecparam(struct net_device *net_dev, 616 struct ethtool_fecparam *fecparam) 617 { 618 struct efx_nic *efx = netdev_priv(net_dev); 619 int rc; 620 621 if (!efx->phy_op || !efx->phy_op->get_fecparam) 622 return -EOPNOTSUPP; 623 mutex_lock(&efx->mac_lock); 624 rc = efx->phy_op->get_fecparam(efx, fecparam); 625 mutex_unlock(&efx->mac_lock); 626 627 return rc; 628 } 629 630 int efx_ethtool_set_fecparam(struct net_device *net_dev, 631 struct ethtool_fecparam *fecparam) 632 { 633 struct efx_nic *efx = netdev_priv(net_dev); 634 int rc; 635 636 if (!efx->phy_op || !efx->phy_op->get_fecparam) 637 return -EOPNOTSUPP; 638 mutex_lock(&efx->mac_lock); 639 rc = efx->phy_op->set_fecparam(efx, fecparam); 640 mutex_unlock(&efx->mac_lock); 641 642 return rc; 643 } 644 645 /* MAC address mask including only I/G bit */ 646 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; 647 648 #define IP4_ADDR_FULL_MASK ((__force __be32)~0) 649 #define IP_PROTO_FULL_MASK 0xFF 650 #define PORT_FULL_MASK ((__force __be16)~0) 651 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 652 653 static inline void ip6_fill_mask(__be32 *mask) 654 { 655 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0; 656 } 657 658 static int efx_ethtool_get_class_rule(struct efx_nic *efx, 659 struct ethtool_rx_flow_spec *rule, 660 u32 *rss_context) 661 { 662 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 663 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 664 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 665 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 666 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 667 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 668 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 669 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 670 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 671 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 672 struct efx_filter_spec spec; 673 int rc; 674 675 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, 676 rule->location, &spec); 677 if (rc) 678 return rc; 679 680 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP) 681 rule->ring_cookie = RX_CLS_FLOW_DISC; 682 else 683 rule->ring_cookie = spec.dmaq_id; 684 685 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 686 spec.ether_type == htons(ETH_P_IP) && 687 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 688 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 689 !(spec.match_flags & 690 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 691 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 692 EFX_FILTER_MATCH_IP_PROTO | 693 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 694 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 695 TCP_V4_FLOW : UDP_V4_FLOW); 696 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 697 ip_entry->ip4dst = spec.loc_host[0]; 698 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 699 } 700 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 701 ip_entry->ip4src = spec.rem_host[0]; 702 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 703 } 704 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 705 ip_entry->pdst = spec.loc_port; 706 ip_mask->pdst = PORT_FULL_MASK; 707 } 708 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 709 ip_entry->psrc = spec.rem_port; 710 ip_mask->psrc = PORT_FULL_MASK; 711 } 712 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 713 spec.ether_type == htons(ETH_P_IPV6) && 714 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 715 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 716 !(spec.match_flags & 717 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 718 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 719 EFX_FILTER_MATCH_IP_PROTO | 720 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 721 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 722 TCP_V6_FLOW : UDP_V6_FLOW); 723 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 724 memcpy(ip6_entry->ip6dst, spec.loc_host, 725 sizeof(ip6_entry->ip6dst)); 726 ip6_fill_mask(ip6_mask->ip6dst); 727 } 728 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 729 memcpy(ip6_entry->ip6src, spec.rem_host, 730 sizeof(ip6_entry->ip6src)); 731 ip6_fill_mask(ip6_mask->ip6src); 732 } 733 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 734 ip6_entry->pdst = spec.loc_port; 735 ip6_mask->pdst = PORT_FULL_MASK; 736 } 737 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 738 ip6_entry->psrc = spec.rem_port; 739 ip6_mask->psrc = PORT_FULL_MASK; 740 } 741 } else if (!(spec.match_flags & 742 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG | 743 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE | 744 EFX_FILTER_MATCH_OUTER_VID))) { 745 rule->flow_type = ETHER_FLOW; 746 if (spec.match_flags & 747 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) { 748 ether_addr_copy(mac_entry->h_dest, spec.loc_mac); 749 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC) 750 eth_broadcast_addr(mac_mask->h_dest); 751 else 752 ether_addr_copy(mac_mask->h_dest, 753 mac_addr_ig_mask); 754 } 755 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) { 756 ether_addr_copy(mac_entry->h_source, spec.rem_mac); 757 eth_broadcast_addr(mac_mask->h_source); 758 } 759 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) { 760 mac_entry->h_proto = spec.ether_type; 761 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 762 } 763 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 764 spec.ether_type == htons(ETH_P_IP) && 765 !(spec.match_flags & 766 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 767 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 768 EFX_FILTER_MATCH_IP_PROTO))) { 769 rule->flow_type = IPV4_USER_FLOW; 770 uip_entry->ip_ver = ETH_RX_NFC_IP4; 771 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 772 uip_mask->proto = IP_PROTO_FULL_MASK; 773 uip_entry->proto = spec.ip_proto; 774 } 775 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 776 uip_entry->ip4dst = spec.loc_host[0]; 777 uip_mask->ip4dst = IP4_ADDR_FULL_MASK; 778 } 779 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 780 uip_entry->ip4src = spec.rem_host[0]; 781 uip_mask->ip4src = IP4_ADDR_FULL_MASK; 782 } 783 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 784 spec.ether_type == htons(ETH_P_IPV6) && 785 !(spec.match_flags & 786 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 787 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 788 EFX_FILTER_MATCH_IP_PROTO))) { 789 rule->flow_type = IPV6_USER_FLOW; 790 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 791 uip6_mask->l4_proto = IP_PROTO_FULL_MASK; 792 uip6_entry->l4_proto = spec.ip_proto; 793 } 794 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 795 memcpy(uip6_entry->ip6dst, spec.loc_host, 796 sizeof(uip6_entry->ip6dst)); 797 ip6_fill_mask(uip6_mask->ip6dst); 798 } 799 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 800 memcpy(uip6_entry->ip6src, spec.rem_host, 801 sizeof(uip6_entry->ip6src)); 802 ip6_fill_mask(uip6_mask->ip6src); 803 } 804 } else { 805 /* The above should handle all filters that we insert */ 806 WARN_ON(1); 807 return -EINVAL; 808 } 809 810 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) { 811 rule->flow_type |= FLOW_EXT; 812 rule->h_ext.vlan_tci = spec.outer_vid; 813 rule->m_ext.vlan_tci = htons(0xfff); 814 } 815 816 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) { 817 rule->flow_type |= FLOW_RSS; 818 *rss_context = spec.rss_context; 819 } 820 821 return rc; 822 } 823 824 int efx_ethtool_get_rxnfc(struct net_device *net_dev, 825 struct ethtool_rxnfc *info, u32 *rule_locs) 826 { 827 struct efx_nic *efx = netdev_priv(net_dev); 828 u32 rss_context = 0; 829 s32 rc = 0; 830 831 switch (info->cmd) { 832 case ETHTOOL_GRXRINGS: 833 info->data = efx->n_rx_channels; 834 return 0; 835 836 case ETHTOOL_GRXFH: { 837 struct efx_rss_context *ctx = &efx->rss_context; 838 __u64 data; 839 840 mutex_lock(&efx->rss_lock); 841 if (info->flow_type & FLOW_RSS && info->rss_context) { 842 ctx = efx_find_rss_context_entry(efx, info->rss_context); 843 if (!ctx) { 844 rc = -ENOENT; 845 goto out_unlock; 846 } 847 } 848 849 data = 0; 850 if (!efx_rss_active(ctx)) /* No RSS */ 851 goto out_setdata_unlock; 852 853 switch (info->flow_type & ~FLOW_RSS) { 854 case UDP_V4_FLOW: 855 case UDP_V6_FLOW: 856 if (ctx->rx_hash_udp_4tuple) 857 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 | 858 RXH_IP_SRC | RXH_IP_DST); 859 else 860 data = RXH_IP_SRC | RXH_IP_DST; 861 break; 862 case TCP_V4_FLOW: 863 case TCP_V6_FLOW: 864 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 | 865 RXH_IP_SRC | RXH_IP_DST); 866 break; 867 case SCTP_V4_FLOW: 868 case SCTP_V6_FLOW: 869 case AH_ESP_V4_FLOW: 870 case AH_ESP_V6_FLOW: 871 case IPV4_FLOW: 872 case IPV6_FLOW: 873 data = RXH_IP_SRC | RXH_IP_DST; 874 break; 875 default: 876 break; 877 } 878 out_setdata_unlock: 879 info->data = data; 880 out_unlock: 881 mutex_unlock(&efx->rss_lock); 882 return rc; 883 } 884 885 case ETHTOOL_GRXCLSRLCNT: 886 info->data = efx_filter_get_rx_id_limit(efx); 887 if (info->data == 0) 888 return -EOPNOTSUPP; 889 info->data |= RX_CLS_LOC_SPECIAL; 890 info->rule_cnt = 891 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL); 892 return 0; 893 894 case ETHTOOL_GRXCLSRULE: 895 if (efx_filter_get_rx_id_limit(efx) == 0) 896 return -EOPNOTSUPP; 897 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context); 898 if (rc < 0) 899 return rc; 900 if (info->fs.flow_type & FLOW_RSS) 901 info->rss_context = rss_context; 902 return 0; 903 904 case ETHTOOL_GRXCLSRLALL: 905 info->data = efx_filter_get_rx_id_limit(efx); 906 if (info->data == 0) 907 return -EOPNOTSUPP; 908 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL, 909 rule_locs, info->rule_cnt); 910 if (rc < 0) 911 return rc; 912 info->rule_cnt = rc; 913 return 0; 914 915 default: 916 return -EOPNOTSUPP; 917 } 918 } 919 920 static inline bool ip6_mask_is_full(__be32 mask[4]) 921 { 922 return !~(mask[0] & mask[1] & mask[2] & mask[3]); 923 } 924 925 static inline bool ip6_mask_is_empty(__be32 mask[4]) 926 { 927 return !(mask[0] | mask[1] | mask[2] | mask[3]); 928 } 929 930 static int efx_ethtool_set_class_rule(struct efx_nic *efx, 931 struct ethtool_rx_flow_spec *rule, 932 u32 rss_context) 933 { 934 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 935 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 936 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 937 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 938 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 939 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 940 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 941 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 942 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS); 943 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 944 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 945 enum efx_filter_flags flags = 0; 946 struct efx_filter_spec spec; 947 int rc; 948 949 /* Check that user wants us to choose the location */ 950 if (rule->location != RX_CLS_LOC_ANY) 951 return -EINVAL; 952 953 /* Range-check ring_cookie */ 954 if (rule->ring_cookie >= efx->n_rx_channels && 955 rule->ring_cookie != RX_CLS_FLOW_DISC) 956 return -EINVAL; 957 958 /* Check for unsupported extensions */ 959 if ((rule->flow_type & FLOW_EXT) && 960 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 961 rule->m_ext.data[1])) 962 return -EINVAL; 963 964 if (efx->rx_scatter) 965 flags |= EFX_FILTER_FLAG_RX_SCATTER; 966 if (rule->flow_type & FLOW_RSS) 967 flags |= EFX_FILTER_FLAG_RX_RSS; 968 969 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags, 970 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 971 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 972 973 if (rule->flow_type & FLOW_RSS) 974 spec.rss_context = rss_context; 975 976 switch (flow_type) { 977 case TCP_V4_FLOW: 978 case UDP_V4_FLOW: 979 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 980 EFX_FILTER_MATCH_IP_PROTO); 981 spec.ether_type = htons(ETH_P_IP); 982 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP 983 : IPPROTO_UDP; 984 if (ip_mask->ip4dst) { 985 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 986 return -EINVAL; 987 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 988 spec.loc_host[0] = ip_entry->ip4dst; 989 } 990 if (ip_mask->ip4src) { 991 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 992 return -EINVAL; 993 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 994 spec.rem_host[0] = ip_entry->ip4src; 995 } 996 if (ip_mask->pdst) { 997 if (ip_mask->pdst != PORT_FULL_MASK) 998 return -EINVAL; 999 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 1000 spec.loc_port = ip_entry->pdst; 1001 } 1002 if (ip_mask->psrc) { 1003 if (ip_mask->psrc != PORT_FULL_MASK) 1004 return -EINVAL; 1005 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 1006 spec.rem_port = ip_entry->psrc; 1007 } 1008 if (ip_mask->tos) 1009 return -EINVAL; 1010 break; 1011 1012 case TCP_V6_FLOW: 1013 case UDP_V6_FLOW: 1014 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 1015 EFX_FILTER_MATCH_IP_PROTO); 1016 spec.ether_type = htons(ETH_P_IPV6); 1017 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP 1018 : IPPROTO_UDP; 1019 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { 1020 if (!ip6_mask_is_full(ip6_mask->ip6dst)) 1021 return -EINVAL; 1022 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1023 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host)); 1024 } 1025 if (!ip6_mask_is_empty(ip6_mask->ip6src)) { 1026 if (!ip6_mask_is_full(ip6_mask->ip6src)) 1027 return -EINVAL; 1028 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1029 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host)); 1030 } 1031 if (ip6_mask->pdst) { 1032 if (ip6_mask->pdst != PORT_FULL_MASK) 1033 return -EINVAL; 1034 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 1035 spec.loc_port = ip6_entry->pdst; 1036 } 1037 if (ip6_mask->psrc) { 1038 if (ip6_mask->psrc != PORT_FULL_MASK) 1039 return -EINVAL; 1040 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 1041 spec.rem_port = ip6_entry->psrc; 1042 } 1043 if (ip6_mask->tclass) 1044 return -EINVAL; 1045 break; 1046 1047 case IPV4_USER_FLOW: 1048 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver || 1049 uip_entry->ip_ver != ETH_RX_NFC_IP4) 1050 return -EINVAL; 1051 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1052 spec.ether_type = htons(ETH_P_IP); 1053 if (uip_mask->ip4dst) { 1054 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1055 return -EINVAL; 1056 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1057 spec.loc_host[0] = uip_entry->ip4dst; 1058 } 1059 if (uip_mask->ip4src) { 1060 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK) 1061 return -EINVAL; 1062 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1063 spec.rem_host[0] = uip_entry->ip4src; 1064 } 1065 if (uip_mask->proto) { 1066 if (uip_mask->proto != IP_PROTO_FULL_MASK) 1067 return -EINVAL; 1068 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1069 spec.ip_proto = uip_entry->proto; 1070 } 1071 break; 1072 1073 case IPV6_USER_FLOW: 1074 if (uip6_mask->l4_4_bytes || uip6_mask->tclass) 1075 return -EINVAL; 1076 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1077 spec.ether_type = htons(ETH_P_IPV6); 1078 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) { 1079 if (!ip6_mask_is_full(uip6_mask->ip6dst)) 1080 return -EINVAL; 1081 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1082 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host)); 1083 } 1084 if (!ip6_mask_is_empty(uip6_mask->ip6src)) { 1085 if (!ip6_mask_is_full(uip6_mask->ip6src)) 1086 return -EINVAL; 1087 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1088 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host)); 1089 } 1090 if (uip6_mask->l4_proto) { 1091 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK) 1092 return -EINVAL; 1093 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1094 spec.ip_proto = uip6_entry->l4_proto; 1095 } 1096 break; 1097 1098 case ETHER_FLOW: 1099 if (!is_zero_ether_addr(mac_mask->h_dest)) { 1100 if (ether_addr_equal(mac_mask->h_dest, 1101 mac_addr_ig_mask)) 1102 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG; 1103 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 1104 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC; 1105 else 1106 return -EINVAL; 1107 ether_addr_copy(spec.loc_mac, mac_entry->h_dest); 1108 } 1109 if (!is_zero_ether_addr(mac_mask->h_source)) { 1110 if (!is_broadcast_ether_addr(mac_mask->h_source)) 1111 return -EINVAL; 1112 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC; 1113 ether_addr_copy(spec.rem_mac, mac_entry->h_source); 1114 } 1115 if (mac_mask->h_proto) { 1116 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 1117 return -EINVAL; 1118 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE; 1119 spec.ether_type = mac_entry->h_proto; 1120 } 1121 break; 1122 1123 default: 1124 return -EINVAL; 1125 } 1126 1127 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 1128 if (rule->m_ext.vlan_tci != htons(0xfff)) 1129 return -EINVAL; 1130 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID; 1131 spec.outer_vid = rule->h_ext.vlan_tci; 1132 } 1133 1134 rc = efx_filter_insert_filter(efx, &spec, true); 1135 if (rc < 0) 1136 return rc; 1137 1138 rule->location = rc; 1139 return 0; 1140 } 1141 1142 int efx_ethtool_set_rxnfc(struct net_device *net_dev, 1143 struct ethtool_rxnfc *info) 1144 { 1145 struct efx_nic *efx = netdev_priv(net_dev); 1146 1147 if (efx_filter_get_rx_id_limit(efx) == 0) 1148 return -EOPNOTSUPP; 1149 1150 switch (info->cmd) { 1151 case ETHTOOL_SRXCLSRLINS: 1152 return efx_ethtool_set_class_rule(efx, &info->fs, 1153 info->rss_context); 1154 1155 case ETHTOOL_SRXCLSRLDEL: 1156 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, 1157 info->fs.location); 1158 1159 default: 1160 return -EOPNOTSUPP; 1161 } 1162 } 1163 1164 u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1165 { 1166 struct efx_nic *efx = netdev_priv(net_dev); 1167 1168 if (efx->n_rx_channels == 1) 1169 return 0; 1170 return ARRAY_SIZE(efx->rss_context.rx_indir_table); 1171 } 1172 1173 u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev) 1174 { 1175 struct efx_nic *efx = netdev_priv(net_dev); 1176 1177 return efx->type->rx_hash_key_size; 1178 } 1179 1180 int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key, 1181 u8 *hfunc) 1182 { 1183 struct efx_nic *efx = netdev_priv(net_dev); 1184 int rc; 1185 1186 rc = efx->type->rx_pull_rss_config(efx); 1187 if (rc) 1188 return rc; 1189 1190 if (hfunc) 1191 *hfunc = ETH_RSS_HASH_TOP; 1192 if (indir) 1193 memcpy(indir, efx->rss_context.rx_indir_table, 1194 sizeof(efx->rss_context.rx_indir_table)); 1195 if (key) 1196 memcpy(key, efx->rss_context.rx_hash_key, 1197 efx->type->rx_hash_key_size); 1198 return 0; 1199 } 1200 1201 int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir, 1202 const u8 *key, const u8 hfunc) 1203 { 1204 struct efx_nic *efx = netdev_priv(net_dev); 1205 1206 /* Hash function is Toeplitz, cannot be changed */ 1207 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 1208 return -EOPNOTSUPP; 1209 if (!indir && !key) 1210 return 0; 1211 1212 if (!key) 1213 key = efx->rss_context.rx_hash_key; 1214 if (!indir) 1215 indir = efx->rss_context.rx_indir_table; 1216 1217 return efx->type->rx_push_rss_config(efx, true, indir, key); 1218 } 1219 1220 int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir, 1221 u8 *key, u8 *hfunc, u32 rss_context) 1222 { 1223 struct efx_nic *efx = netdev_priv(net_dev); 1224 struct efx_rss_context *ctx; 1225 int rc = 0; 1226 1227 if (!efx->type->rx_pull_rss_context_config) 1228 return -EOPNOTSUPP; 1229 1230 mutex_lock(&efx->rss_lock); 1231 ctx = efx_find_rss_context_entry(efx, rss_context); 1232 if (!ctx) { 1233 rc = -ENOENT; 1234 goto out_unlock; 1235 } 1236 rc = efx->type->rx_pull_rss_context_config(efx, ctx); 1237 if (rc) 1238 goto out_unlock; 1239 1240 if (hfunc) 1241 *hfunc = ETH_RSS_HASH_TOP; 1242 if (indir) 1243 memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table)); 1244 if (key) 1245 memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size); 1246 out_unlock: 1247 mutex_unlock(&efx->rss_lock); 1248 return rc; 1249 } 1250 1251 int efx_ethtool_set_rxfh_context(struct net_device *net_dev, 1252 const u32 *indir, const u8 *key, 1253 const u8 hfunc, u32 *rss_context, 1254 bool delete) 1255 { 1256 struct efx_nic *efx = netdev_priv(net_dev); 1257 struct efx_rss_context *ctx; 1258 bool allocated = false; 1259 int rc; 1260 1261 if (!efx->type->rx_push_rss_context_config) 1262 return -EOPNOTSUPP; 1263 /* Hash function is Toeplitz, cannot be changed */ 1264 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 1265 return -EOPNOTSUPP; 1266 1267 mutex_lock(&efx->rss_lock); 1268 1269 if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { 1270 if (delete) { 1271 /* alloc + delete == Nothing to do */ 1272 rc = -EINVAL; 1273 goto out_unlock; 1274 } 1275 ctx = efx_alloc_rss_context_entry(efx); 1276 if (!ctx) { 1277 rc = -ENOMEM; 1278 goto out_unlock; 1279 } 1280 ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID; 1281 /* Initialise indir table and key to defaults */ 1282 efx_set_default_rx_indir_table(efx, ctx); 1283 netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key)); 1284 allocated = true; 1285 } else { 1286 ctx = efx_find_rss_context_entry(efx, *rss_context); 1287 if (!ctx) { 1288 rc = -ENOENT; 1289 goto out_unlock; 1290 } 1291 } 1292 1293 if (delete) { 1294 /* delete this context */ 1295 rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL); 1296 if (!rc) 1297 efx_free_rss_context_entry(ctx); 1298 goto out_unlock; 1299 } 1300 1301 if (!key) 1302 key = ctx->rx_hash_key; 1303 if (!indir) 1304 indir = ctx->rx_indir_table; 1305 1306 rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key); 1307 if (rc && allocated) 1308 efx_free_rss_context_entry(ctx); 1309 else 1310 *rss_context = ctx->user_id; 1311 out_unlock: 1312 mutex_unlock(&efx->rss_lock); 1313 return rc; 1314 } 1315 1316 int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) 1317 { 1318 struct efx_nic *efx = netdev_priv(net_dev); 1319 int rc; 1320 1321 rc = efx->type->map_reset_flags(flags); 1322 if (rc < 0) 1323 return rc; 1324 1325 return efx_reset(efx, rc); 1326 } 1327 1328 int efx_ethtool_get_module_eeprom(struct net_device *net_dev, 1329 struct ethtool_eeprom *ee, 1330 u8 *data) 1331 { 1332 struct efx_nic *efx = netdev_priv(net_dev); 1333 int ret; 1334 1335 if (!efx->phy_op || !efx->phy_op->get_module_eeprom) 1336 return -EOPNOTSUPP; 1337 1338 mutex_lock(&efx->mac_lock); 1339 ret = efx->phy_op->get_module_eeprom(efx, ee, data); 1340 mutex_unlock(&efx->mac_lock); 1341 1342 return ret; 1343 } 1344 1345 int efx_ethtool_get_module_info(struct net_device *net_dev, 1346 struct ethtool_modinfo *modinfo) 1347 { 1348 struct efx_nic *efx = netdev_priv(net_dev); 1349 int ret; 1350 1351 if (!efx->phy_op || !efx->phy_op->get_module_info) 1352 return -EOPNOTSUPP; 1353 1354 mutex_lock(&efx->mac_lock); 1355 ret = efx->phy_op->get_module_info(efx, modinfo); 1356 mutex_unlock(&efx->mac_lock); 1357 1358 return ret; 1359 } 1360