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 #include "mcdi_port_common.h" 19 20 struct efx_sw_stat_desc { 21 const char *name; 22 enum { 23 EFX_ETHTOOL_STAT_SOURCE_nic, 24 EFX_ETHTOOL_STAT_SOURCE_channel, 25 EFX_ETHTOOL_STAT_SOURCE_tx_queue 26 } source; 27 unsigned int offset; 28 u64 (*get_stat)(void *field); /* Reader function */ 29 }; 30 31 /* Initialiser for a struct efx_sw_stat_desc with type-checking */ 32 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \ 33 get_stat_function) { \ 34 .name = #stat_name, \ 35 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \ 36 .offset = ((((field_type *) 0) == \ 37 &((struct efx_##source_name *)0)->field) ? \ 38 offsetof(struct efx_##source_name, field) : \ 39 offsetof(struct efx_##source_name, field)), \ 40 .get_stat = get_stat_function, \ 41 } 42 43 static u64 efx_get_uint_stat(void *field) 44 { 45 return *(unsigned int *)field; 46 } 47 48 static u64 efx_get_atomic_stat(void *field) 49 { 50 return atomic_read((atomic_t *) field); 51 } 52 53 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \ 54 EFX_ETHTOOL_STAT(field, nic, field, \ 55 atomic_t, efx_get_atomic_stat) 56 57 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \ 58 EFX_ETHTOOL_STAT(field, channel, n_##field, \ 59 unsigned int, efx_get_uint_stat) 60 #define EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(field) \ 61 EFX_ETHTOOL_STAT(field, channel, field, \ 62 unsigned int, efx_get_uint_stat) 63 64 #define EFX_ETHTOOL_UINT_TXQ_STAT(field) \ 65 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \ 66 unsigned int, efx_get_uint_stat) 67 68 static const struct efx_sw_stat_desc efx_sw_stat_desc[] = { 69 EFX_ETHTOOL_UINT_TXQ_STAT(merge_events), 70 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts), 71 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers), 72 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets), 73 EFX_ETHTOOL_UINT_TXQ_STAT(tso_fallbacks), 74 EFX_ETHTOOL_UINT_TXQ_STAT(pushes), 75 EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets), 76 EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets), 77 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset), 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_frm_trunc), 86 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_overlength), 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 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mport_bad), 94 #ifdef CONFIG_RFS_ACCEL 95 EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count), 96 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded), 97 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed), 98 #endif 99 }; 100 101 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc) 102 103 void efx_ethtool_get_drvinfo(struct net_device *net_dev, 104 struct ethtool_drvinfo *info) 105 { 106 struct efx_nic *efx = efx_netdev_priv(net_dev); 107 108 strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); 109 efx_mcdi_print_fwver(efx, info->fw_version, 110 sizeof(info->fw_version)); 111 strscpy(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 = 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 = 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 = 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_net_active(efx->state)) { 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 = 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 = 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_mcdi_port_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 for (i = 0; true; ++i) { 376 const char *name; 377 378 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS); 379 name = efx_mcdi_phy_test_name(efx, i); 380 if (name == NULL) 381 break; 382 383 efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL); 384 } 385 386 /* Loopback tests */ 387 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) { 388 if (!(efx->loopback_modes & (1 << mode))) 389 continue; 390 n = efx_fill_loopback_test(efx, 391 &tests->loopback[mode], mode, n, 392 strings, data); 393 } 394 395 return n; 396 } 397 398 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 **strings) 399 { 400 size_t n_stats = 0; 401 struct efx_channel *channel; 402 403 efx_for_each_channel(channel, efx) { 404 if (efx_channel_has_tx_queues(channel)) { 405 n_stats++; 406 if (!strings) 407 continue; 408 409 ethtool_sprintf(strings, "tx-%u.tx_packets", 410 channel->tx_queue[0].queue / 411 EFX_MAX_TXQ_PER_CHANNEL); 412 } 413 } 414 efx_for_each_channel(channel, efx) { 415 if (efx_channel_has_rx_queue(channel)) { 416 n_stats++; 417 if (!strings) 418 continue; 419 420 ethtool_sprintf(strings, "rx-%d.rx_packets", 421 channel->channel); 422 } 423 } 424 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 425 unsigned short xdp; 426 427 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 428 n_stats++; 429 if (!strings) 430 continue; 431 432 ethtool_sprintf(strings, "tx-xdp-cpu-%hu.tx_packets", 433 xdp); 434 } 435 } 436 437 return n_stats; 438 } 439 440 int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set) 441 { 442 struct efx_nic *efx = efx_netdev_priv(net_dev); 443 444 switch (string_set) { 445 case ETH_SS_STATS: 446 return efx->type->describe_stats(efx, NULL) + 447 EFX_ETHTOOL_SW_STAT_COUNT + 448 efx_describe_per_queue_stats(efx, NULL) + 449 efx_ptp_describe_stats(efx, NULL); 450 case ETH_SS_TEST: 451 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL); 452 default: 453 return -EINVAL; 454 } 455 } 456 457 void efx_ethtool_get_strings(struct net_device *net_dev, 458 u32 string_set, u8 *strings) 459 { 460 struct efx_nic *efx = efx_netdev_priv(net_dev); 461 int i; 462 463 switch (string_set) { 464 case ETH_SS_STATS: 465 efx->type->describe_stats(efx, &strings); 466 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) 467 ethtool_puts(&strings, efx_sw_stat_desc[i].name); 468 efx_describe_per_queue_stats(efx, &strings); 469 efx_ptp_describe_stats(efx, &strings); 470 break; 471 case ETH_SS_TEST: 472 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL); 473 break; 474 default: 475 /* No other string sets */ 476 break; 477 } 478 } 479 480 void efx_ethtool_get_stats(struct net_device *net_dev, 481 struct ethtool_stats *stats, 482 u64 *data) 483 { 484 struct efx_nic *efx = efx_netdev_priv(net_dev); 485 const struct efx_sw_stat_desc *stat; 486 struct efx_channel *channel; 487 struct efx_tx_queue *tx_queue; 488 struct efx_rx_queue *rx_queue; 489 int i; 490 491 spin_lock_bh(&efx->stats_lock); 492 493 /* Get NIC statistics */ 494 data += efx->type->update_stats(efx, data, NULL); 495 496 /* Get software statistics */ 497 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) { 498 stat = &efx_sw_stat_desc[i]; 499 switch (stat->source) { 500 case EFX_ETHTOOL_STAT_SOURCE_nic: 501 data[i] = stat->get_stat((void *)efx + stat->offset); 502 break; 503 case EFX_ETHTOOL_STAT_SOURCE_channel: 504 data[i] = 0; 505 efx_for_each_channel(channel, efx) 506 data[i] += stat->get_stat((void *)channel + 507 stat->offset); 508 break; 509 case EFX_ETHTOOL_STAT_SOURCE_tx_queue: 510 data[i] = 0; 511 efx_for_each_channel(channel, efx) { 512 efx_for_each_channel_tx_queue(tx_queue, channel) 513 data[i] += 514 stat->get_stat((void *)tx_queue 515 + stat->offset); 516 } 517 break; 518 } 519 } 520 data += EFX_ETHTOOL_SW_STAT_COUNT; 521 522 spin_unlock_bh(&efx->stats_lock); 523 524 efx_for_each_channel(channel, efx) { 525 if (efx_channel_has_tx_queues(channel)) { 526 *data = 0; 527 efx_for_each_channel_tx_queue(tx_queue, channel) { 528 *data += tx_queue->tx_packets; 529 } 530 data++; 531 } 532 } 533 efx_for_each_channel(channel, efx) { 534 if (efx_channel_has_rx_queue(channel)) { 535 *data = 0; 536 efx_for_each_channel_rx_queue(rx_queue, channel) { 537 *data += rx_queue->rx_packets; 538 } 539 data++; 540 } 541 } 542 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 543 int xdp; 544 545 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 546 data[0] = efx->xdp_tx_queues[xdp]->tx_packets; 547 data++; 548 } 549 } 550 551 efx_ptp_update_stats(efx, data); 552 } 553 554 /* This must be called with rtnl_lock held. */ 555 int efx_ethtool_get_link_ksettings(struct net_device *net_dev, 556 struct ethtool_link_ksettings *cmd) 557 { 558 struct efx_nic *efx = efx_netdev_priv(net_dev); 559 struct efx_link_state *link_state = &efx->link_state; 560 561 mutex_lock(&efx->mac_lock); 562 efx_mcdi_phy_get_link_ksettings(efx, cmd); 563 mutex_unlock(&efx->mac_lock); 564 565 /* Both MACs support pause frames (bidirectional and respond-only) */ 566 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 567 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause); 568 569 if (LOOPBACK_INTERNAL(efx)) { 570 cmd->base.speed = link_state->speed; 571 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; 572 } 573 574 return 0; 575 } 576 577 /* This must be called with rtnl_lock held. */ 578 int efx_ethtool_set_link_ksettings(struct net_device *net_dev, 579 const struct ethtool_link_ksettings *cmd) 580 { 581 struct efx_nic *efx = efx_netdev_priv(net_dev); 582 int rc; 583 584 /* GMAC does not support 1000Mbps HD */ 585 if ((cmd->base.speed == SPEED_1000) && 586 (cmd->base.duplex != DUPLEX_FULL)) { 587 netif_dbg(efx, drv, efx->net_dev, 588 "rejecting unsupported 1000Mbps HD setting\n"); 589 return -EINVAL; 590 } 591 592 mutex_lock(&efx->mac_lock); 593 rc = efx_mcdi_phy_set_link_ksettings(efx, cmd); 594 mutex_unlock(&efx->mac_lock); 595 return rc; 596 } 597 598 int efx_ethtool_get_fecparam(struct net_device *net_dev, 599 struct ethtool_fecparam *fecparam) 600 { 601 struct efx_nic *efx = efx_netdev_priv(net_dev); 602 int rc; 603 604 mutex_lock(&efx->mac_lock); 605 rc = efx_mcdi_phy_get_fecparam(efx, fecparam); 606 mutex_unlock(&efx->mac_lock); 607 608 return rc; 609 } 610 611 int efx_ethtool_set_fecparam(struct net_device *net_dev, 612 struct ethtool_fecparam *fecparam) 613 { 614 struct efx_nic *efx = efx_netdev_priv(net_dev); 615 int rc; 616 617 mutex_lock(&efx->mac_lock); 618 rc = efx_mcdi_phy_set_fecparam(efx, fecparam); 619 mutex_unlock(&efx->mac_lock); 620 621 return rc; 622 } 623 624 /* MAC address mask including only I/G bit */ 625 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; 626 627 #define IP4_ADDR_FULL_MASK ((__force __be32)~0) 628 #define IP_PROTO_FULL_MASK 0xFF 629 #define PORT_FULL_MASK ((__force __be16)~0) 630 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 631 632 static inline void ip6_fill_mask(__be32 *mask) 633 { 634 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0; 635 } 636 637 static int efx_ethtool_get_class_rule(struct efx_nic *efx, 638 struct ethtool_rx_flow_spec *rule, 639 u32 *rss_context) 640 { 641 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 642 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 643 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 644 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 645 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 646 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 647 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 648 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 649 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 650 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 651 struct efx_filter_spec spec; 652 int rc; 653 654 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, 655 rule->location, &spec); 656 if (rc) 657 return rc; 658 659 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP) 660 rule->ring_cookie = RX_CLS_FLOW_DISC; 661 else 662 rule->ring_cookie = spec.dmaq_id; 663 664 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 665 spec.ether_type == htons(ETH_P_IP) && 666 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 667 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 668 !(spec.match_flags & 669 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 670 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 671 EFX_FILTER_MATCH_IP_PROTO | 672 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 673 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 674 TCP_V4_FLOW : UDP_V4_FLOW); 675 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 676 ip_entry->ip4dst = spec.loc_host[0]; 677 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 678 } 679 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 680 ip_entry->ip4src = spec.rem_host[0]; 681 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 682 } 683 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 684 ip_entry->pdst = spec.loc_port; 685 ip_mask->pdst = PORT_FULL_MASK; 686 } 687 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 688 ip_entry->psrc = spec.rem_port; 689 ip_mask->psrc = PORT_FULL_MASK; 690 } 691 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 692 spec.ether_type == htons(ETH_P_IPV6) && 693 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 694 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 695 !(spec.match_flags & 696 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 697 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 698 EFX_FILTER_MATCH_IP_PROTO | 699 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 700 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 701 TCP_V6_FLOW : UDP_V6_FLOW); 702 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 703 memcpy(ip6_entry->ip6dst, spec.loc_host, 704 sizeof(ip6_entry->ip6dst)); 705 ip6_fill_mask(ip6_mask->ip6dst); 706 } 707 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 708 memcpy(ip6_entry->ip6src, spec.rem_host, 709 sizeof(ip6_entry->ip6src)); 710 ip6_fill_mask(ip6_mask->ip6src); 711 } 712 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 713 ip6_entry->pdst = spec.loc_port; 714 ip6_mask->pdst = PORT_FULL_MASK; 715 } 716 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 717 ip6_entry->psrc = spec.rem_port; 718 ip6_mask->psrc = PORT_FULL_MASK; 719 } 720 } else if (!(spec.match_flags & 721 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG | 722 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE | 723 EFX_FILTER_MATCH_OUTER_VID))) { 724 rule->flow_type = ETHER_FLOW; 725 if (spec.match_flags & 726 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) { 727 ether_addr_copy(mac_entry->h_dest, spec.loc_mac); 728 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC) 729 eth_broadcast_addr(mac_mask->h_dest); 730 else 731 ether_addr_copy(mac_mask->h_dest, 732 mac_addr_ig_mask); 733 } 734 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) { 735 ether_addr_copy(mac_entry->h_source, spec.rem_mac); 736 eth_broadcast_addr(mac_mask->h_source); 737 } 738 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) { 739 mac_entry->h_proto = spec.ether_type; 740 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 741 } 742 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 743 spec.ether_type == htons(ETH_P_IP) && 744 !(spec.match_flags & 745 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 746 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 747 EFX_FILTER_MATCH_IP_PROTO))) { 748 rule->flow_type = IPV4_USER_FLOW; 749 uip_entry->ip_ver = ETH_RX_NFC_IP4; 750 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 751 uip_mask->proto = IP_PROTO_FULL_MASK; 752 uip_entry->proto = spec.ip_proto; 753 } 754 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 755 uip_entry->ip4dst = spec.loc_host[0]; 756 uip_mask->ip4dst = IP4_ADDR_FULL_MASK; 757 } 758 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 759 uip_entry->ip4src = spec.rem_host[0]; 760 uip_mask->ip4src = IP4_ADDR_FULL_MASK; 761 } 762 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 763 spec.ether_type == htons(ETH_P_IPV6) && 764 !(spec.match_flags & 765 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 766 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 767 EFX_FILTER_MATCH_IP_PROTO))) { 768 rule->flow_type = IPV6_USER_FLOW; 769 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 770 uip6_mask->l4_proto = IP_PROTO_FULL_MASK; 771 uip6_entry->l4_proto = spec.ip_proto; 772 } 773 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 774 memcpy(uip6_entry->ip6dst, spec.loc_host, 775 sizeof(uip6_entry->ip6dst)); 776 ip6_fill_mask(uip6_mask->ip6dst); 777 } 778 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 779 memcpy(uip6_entry->ip6src, spec.rem_host, 780 sizeof(uip6_entry->ip6src)); 781 ip6_fill_mask(uip6_mask->ip6src); 782 } 783 } else { 784 /* The above should handle all filters that we insert */ 785 WARN_ON(1); 786 return -EINVAL; 787 } 788 789 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) { 790 rule->flow_type |= FLOW_EXT; 791 rule->h_ext.vlan_tci = spec.outer_vid; 792 rule->m_ext.vlan_tci = htons(0xfff); 793 } 794 795 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) { 796 rule->flow_type |= FLOW_RSS; 797 *rss_context = spec.rss_context; 798 } 799 800 return rc; 801 } 802 803 int efx_ethtool_get_rxfh_fields(struct net_device *net_dev, 804 struct ethtool_rxfh_fields *info) 805 { 806 struct efx_nic *efx = efx_netdev_priv(net_dev); 807 struct efx_rss_context_priv *ctx; 808 __u64 data; 809 int rc = 0; 810 811 ctx = &efx->rss_context.priv; 812 813 if (info->rss_context) { 814 ctx = efx_find_rss_context_entry(efx, info->rss_context); 815 if (!ctx) 816 return -ENOENT; 817 } 818 819 data = 0; 820 if (!efx_rss_active(ctx)) /* No RSS */ 821 goto out_setdata_unlock; 822 823 switch (info->flow_type) { 824 case UDP_V4_FLOW: 825 case UDP_V6_FLOW: 826 if (ctx->rx_hash_udp_4tuple) 827 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 | 828 RXH_IP_SRC | RXH_IP_DST); 829 else 830 data = RXH_IP_SRC | RXH_IP_DST; 831 break; 832 case TCP_V4_FLOW: 833 case TCP_V6_FLOW: 834 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 | 835 RXH_IP_SRC | RXH_IP_DST); 836 break; 837 case SCTP_V4_FLOW: 838 case SCTP_V6_FLOW: 839 case AH_ESP_V4_FLOW: 840 case AH_ESP_V6_FLOW: 841 case IPV4_FLOW: 842 case IPV6_FLOW: 843 data = RXH_IP_SRC | RXH_IP_DST; 844 break; 845 default: 846 break; 847 } 848 out_setdata_unlock: 849 info->data = data; 850 return rc; 851 } 852 853 int efx_ethtool_get_rxnfc(struct net_device *net_dev, 854 struct ethtool_rxnfc *info, u32 *rule_locs) 855 { 856 struct efx_nic *efx = efx_netdev_priv(net_dev); 857 u32 rss_context = 0; 858 s32 rc = 0; 859 860 switch (info->cmd) { 861 case ETHTOOL_GRXRINGS: 862 info->data = efx->n_rx_channels; 863 return 0; 864 865 case ETHTOOL_GRXCLSRLCNT: 866 info->data = efx_filter_get_rx_id_limit(efx); 867 if (info->data == 0) 868 return -EOPNOTSUPP; 869 info->data |= RX_CLS_LOC_SPECIAL; 870 info->rule_cnt = 871 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL); 872 return 0; 873 874 case ETHTOOL_GRXCLSRULE: 875 if (efx_filter_get_rx_id_limit(efx) == 0) 876 return -EOPNOTSUPP; 877 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context); 878 if (rc < 0) 879 return rc; 880 if (info->fs.flow_type & FLOW_RSS) 881 info->rss_context = rss_context; 882 return 0; 883 884 case ETHTOOL_GRXCLSRLALL: 885 info->data = efx_filter_get_rx_id_limit(efx); 886 if (info->data == 0) 887 return -EOPNOTSUPP; 888 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL, 889 rule_locs, info->rule_cnt); 890 if (rc < 0) 891 return rc; 892 info->rule_cnt = rc; 893 return 0; 894 895 default: 896 return -EOPNOTSUPP; 897 } 898 } 899 900 static inline bool ip6_mask_is_full(__be32 mask[4]) 901 { 902 return !~(mask[0] & mask[1] & mask[2] & mask[3]); 903 } 904 905 static inline bool ip6_mask_is_empty(__be32 mask[4]) 906 { 907 return !(mask[0] | mask[1] | mask[2] | mask[3]); 908 } 909 910 static int efx_ethtool_set_class_rule(struct efx_nic *efx, 911 struct ethtool_rx_flow_spec *rule, 912 u32 rss_context) 913 { 914 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 915 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 916 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 917 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 918 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 919 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 920 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 921 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 922 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS); 923 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 924 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 925 enum efx_filter_flags flags = 0; 926 struct efx_filter_spec spec; 927 int rc; 928 929 /* Check that user wants us to choose the location */ 930 if (rule->location != RX_CLS_LOC_ANY) 931 return -EINVAL; 932 933 /* Range-check ring_cookie */ 934 if (rule->ring_cookie >= efx->n_rx_channels && 935 rule->ring_cookie != RX_CLS_FLOW_DISC) 936 return -EINVAL; 937 938 /* Check for unsupported extensions */ 939 if ((rule->flow_type & FLOW_EXT) && 940 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 941 rule->m_ext.data[1])) 942 return -EINVAL; 943 944 if (efx->rx_scatter) 945 flags |= EFX_FILTER_FLAG_RX_SCATTER; 946 if (rule->flow_type & FLOW_RSS) 947 flags |= EFX_FILTER_FLAG_RX_RSS; 948 949 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags, 950 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 951 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 952 953 if (rule->flow_type & FLOW_RSS) 954 spec.rss_context = rss_context; 955 956 switch (flow_type) { 957 case TCP_V4_FLOW: 958 case UDP_V4_FLOW: 959 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 960 EFX_FILTER_MATCH_IP_PROTO); 961 spec.ether_type = htons(ETH_P_IP); 962 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP 963 : IPPROTO_UDP; 964 if (ip_mask->ip4dst) { 965 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 966 return -EINVAL; 967 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 968 spec.loc_host[0] = ip_entry->ip4dst; 969 } 970 if (ip_mask->ip4src) { 971 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 972 return -EINVAL; 973 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 974 spec.rem_host[0] = ip_entry->ip4src; 975 } 976 if (ip_mask->pdst) { 977 if (ip_mask->pdst != PORT_FULL_MASK) 978 return -EINVAL; 979 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 980 spec.loc_port = ip_entry->pdst; 981 } 982 if (ip_mask->psrc) { 983 if (ip_mask->psrc != PORT_FULL_MASK) 984 return -EINVAL; 985 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 986 spec.rem_port = ip_entry->psrc; 987 } 988 if (ip_mask->tos) 989 return -EINVAL; 990 break; 991 992 case TCP_V6_FLOW: 993 case UDP_V6_FLOW: 994 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 995 EFX_FILTER_MATCH_IP_PROTO); 996 spec.ether_type = htons(ETH_P_IPV6); 997 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP 998 : IPPROTO_UDP; 999 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { 1000 if (!ip6_mask_is_full(ip6_mask->ip6dst)) 1001 return -EINVAL; 1002 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1003 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host)); 1004 } 1005 if (!ip6_mask_is_empty(ip6_mask->ip6src)) { 1006 if (!ip6_mask_is_full(ip6_mask->ip6src)) 1007 return -EINVAL; 1008 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1009 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host)); 1010 } 1011 if (ip6_mask->pdst) { 1012 if (ip6_mask->pdst != PORT_FULL_MASK) 1013 return -EINVAL; 1014 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 1015 spec.loc_port = ip6_entry->pdst; 1016 } 1017 if (ip6_mask->psrc) { 1018 if (ip6_mask->psrc != PORT_FULL_MASK) 1019 return -EINVAL; 1020 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 1021 spec.rem_port = ip6_entry->psrc; 1022 } 1023 if (ip6_mask->tclass) 1024 return -EINVAL; 1025 break; 1026 1027 case IPV4_USER_FLOW: 1028 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver || 1029 uip_entry->ip_ver != ETH_RX_NFC_IP4) 1030 return -EINVAL; 1031 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1032 spec.ether_type = htons(ETH_P_IP); 1033 if (uip_mask->ip4dst) { 1034 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1035 return -EINVAL; 1036 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1037 spec.loc_host[0] = uip_entry->ip4dst; 1038 } 1039 if (uip_mask->ip4src) { 1040 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK) 1041 return -EINVAL; 1042 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1043 spec.rem_host[0] = uip_entry->ip4src; 1044 } 1045 if (uip_mask->proto) { 1046 if (uip_mask->proto != IP_PROTO_FULL_MASK) 1047 return -EINVAL; 1048 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1049 spec.ip_proto = uip_entry->proto; 1050 } 1051 break; 1052 1053 case IPV6_USER_FLOW: 1054 if (uip6_mask->l4_4_bytes || uip6_mask->tclass) 1055 return -EINVAL; 1056 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1057 spec.ether_type = htons(ETH_P_IPV6); 1058 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) { 1059 if (!ip6_mask_is_full(uip6_mask->ip6dst)) 1060 return -EINVAL; 1061 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1062 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host)); 1063 } 1064 if (!ip6_mask_is_empty(uip6_mask->ip6src)) { 1065 if (!ip6_mask_is_full(uip6_mask->ip6src)) 1066 return -EINVAL; 1067 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1068 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host)); 1069 } 1070 if (uip6_mask->l4_proto) { 1071 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK) 1072 return -EINVAL; 1073 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1074 spec.ip_proto = uip6_entry->l4_proto; 1075 } 1076 break; 1077 1078 case ETHER_FLOW: 1079 if (!is_zero_ether_addr(mac_mask->h_dest)) { 1080 if (ether_addr_equal(mac_mask->h_dest, 1081 mac_addr_ig_mask)) 1082 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG; 1083 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 1084 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC; 1085 else 1086 return -EINVAL; 1087 ether_addr_copy(spec.loc_mac, mac_entry->h_dest); 1088 } 1089 if (!is_zero_ether_addr(mac_mask->h_source)) { 1090 if (!is_broadcast_ether_addr(mac_mask->h_source)) 1091 return -EINVAL; 1092 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC; 1093 ether_addr_copy(spec.rem_mac, mac_entry->h_source); 1094 } 1095 if (mac_mask->h_proto) { 1096 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 1097 return -EINVAL; 1098 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE; 1099 spec.ether_type = mac_entry->h_proto; 1100 } 1101 break; 1102 1103 default: 1104 return -EINVAL; 1105 } 1106 1107 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 1108 if (rule->m_ext.vlan_tci != htons(0xfff)) 1109 return -EINVAL; 1110 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID; 1111 spec.outer_vid = rule->h_ext.vlan_tci; 1112 } 1113 1114 rc = efx_filter_insert_filter(efx, &spec, true); 1115 if (rc < 0) 1116 return rc; 1117 1118 rule->location = rc; 1119 return 0; 1120 } 1121 1122 int efx_ethtool_set_rxnfc(struct net_device *net_dev, 1123 struct ethtool_rxnfc *info) 1124 { 1125 struct efx_nic *efx = efx_netdev_priv(net_dev); 1126 1127 if (efx_filter_get_rx_id_limit(efx) == 0) 1128 return -EOPNOTSUPP; 1129 1130 switch (info->cmd) { 1131 case ETHTOOL_SRXCLSRLINS: 1132 return efx_ethtool_set_class_rule(efx, &info->fs, 1133 info->rss_context); 1134 1135 case ETHTOOL_SRXCLSRLDEL: 1136 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, 1137 info->fs.location); 1138 1139 default: 1140 return -EOPNOTSUPP; 1141 } 1142 } 1143 1144 u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1145 { 1146 struct efx_nic *efx = efx_netdev_priv(net_dev); 1147 1148 if (efx->n_rx_channels == 1) 1149 return 0; 1150 return ARRAY_SIZE(efx->rss_context.rx_indir_table); 1151 } 1152 1153 u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev) 1154 { 1155 struct efx_nic *efx = efx_netdev_priv(net_dev); 1156 1157 return efx->type->rx_hash_key_size; 1158 } 1159 1160 int efx_ethtool_get_rxfh(struct net_device *net_dev, 1161 struct ethtool_rxfh_param *rxfh) 1162 { 1163 struct efx_nic *efx = efx_netdev_priv(net_dev); 1164 int rc; 1165 1166 if (rxfh->rss_context) /* core should never call us for these */ 1167 return -EINVAL; 1168 1169 rc = efx->type->rx_pull_rss_config(efx); 1170 if (rc) 1171 return rc; 1172 1173 rxfh->hfunc = ETH_RSS_HASH_TOP; 1174 if (rxfh->indir) 1175 memcpy(rxfh->indir, efx->rss_context.rx_indir_table, 1176 sizeof(efx->rss_context.rx_indir_table)); 1177 if (rxfh->key) 1178 memcpy(rxfh->key, efx->rss_context.rx_hash_key, 1179 efx->type->rx_hash_key_size); 1180 return 0; 1181 } 1182 1183 int efx_ethtool_modify_rxfh_context(struct net_device *net_dev, 1184 struct ethtool_rxfh_context *ctx, 1185 const struct ethtool_rxfh_param *rxfh, 1186 struct netlink_ext_ack *extack) 1187 { 1188 struct efx_nic *efx = efx_netdev_priv(net_dev); 1189 struct efx_rss_context_priv *priv; 1190 const u32 *indir = rxfh->indir; 1191 const u8 *key = rxfh->key; 1192 1193 if (!efx->type->rx_push_rss_context_config) { 1194 NL_SET_ERR_MSG_MOD(extack, 1195 "NIC type does not support custom contexts"); 1196 return -EOPNOTSUPP; 1197 } 1198 /* Hash function is Toeplitz, cannot be changed */ 1199 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 1200 rxfh->hfunc != ETH_RSS_HASH_TOP) { 1201 NL_SET_ERR_MSG_MOD(extack, "Only Toeplitz hash is supported"); 1202 return -EOPNOTSUPP; 1203 } 1204 1205 priv = ethtool_rxfh_context_priv(ctx); 1206 1207 if (!key) 1208 key = ethtool_rxfh_context_key(ctx); 1209 if (!indir) 1210 indir = ethtool_rxfh_context_indir(ctx); 1211 1212 return efx->type->rx_push_rss_context_config(efx, priv, indir, key, 1213 false); 1214 } 1215 1216 int efx_ethtool_create_rxfh_context(struct net_device *net_dev, 1217 struct ethtool_rxfh_context *ctx, 1218 const struct ethtool_rxfh_param *rxfh, 1219 struct netlink_ext_ack *extack) 1220 { 1221 struct efx_nic *efx = efx_netdev_priv(net_dev); 1222 struct efx_rss_context_priv *priv; 1223 1224 priv = ethtool_rxfh_context_priv(ctx); 1225 1226 priv->context_id = EFX_MCDI_RSS_CONTEXT_INVALID; 1227 priv->rx_hash_udp_4tuple = false; 1228 /* Generate default indir table and/or key if not specified. 1229 * We use ctx as a place to store these; this is fine because 1230 * we're doing a create, so if we fail then the ctx will just 1231 * be deleted. 1232 */ 1233 if (!rxfh->indir) 1234 efx_set_default_rx_indir_table(efx, ethtool_rxfh_context_indir(ctx)); 1235 if (!rxfh->key) 1236 netdev_rss_key_fill(ethtool_rxfh_context_key(ctx), 1237 ctx->key_size); 1238 if (rxfh->hfunc == ETH_RSS_HASH_NO_CHANGE) 1239 ctx->hfunc = ETH_RSS_HASH_TOP; 1240 if (rxfh->input_xfrm == RXH_XFRM_NO_CHANGE) 1241 ctx->input_xfrm = 0; 1242 return efx_ethtool_modify_rxfh_context(net_dev, ctx, rxfh, extack); 1243 } 1244 1245 int efx_ethtool_remove_rxfh_context(struct net_device *net_dev, 1246 struct ethtool_rxfh_context *ctx, 1247 u32 rss_context, 1248 struct netlink_ext_ack *extack) 1249 { 1250 struct efx_nic *efx = efx_netdev_priv(net_dev); 1251 struct efx_rss_context_priv *priv; 1252 1253 if (!efx->type->rx_push_rss_context_config) { 1254 NL_SET_ERR_MSG_MOD(extack, 1255 "NIC type does not support custom contexts"); 1256 return -EOPNOTSUPP; 1257 } 1258 1259 priv = ethtool_rxfh_context_priv(ctx); 1260 return efx->type->rx_push_rss_context_config(efx, priv, NULL, NULL, 1261 true); 1262 } 1263 1264 int efx_ethtool_set_rxfh(struct net_device *net_dev, 1265 struct ethtool_rxfh_param *rxfh, 1266 struct netlink_ext_ack *extack) 1267 { 1268 struct efx_nic *efx = efx_netdev_priv(net_dev); 1269 u32 *indir = rxfh->indir; 1270 u8 *key = rxfh->key; 1271 1272 /* Hash function is Toeplitz, cannot be changed */ 1273 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 1274 rxfh->hfunc != ETH_RSS_HASH_TOP) 1275 return -EOPNOTSUPP; 1276 1277 /* Custom contexts should use new API */ 1278 if (WARN_ON_ONCE(rxfh->rss_context)) 1279 return -EIO; 1280 1281 if (!indir && !key) 1282 return 0; 1283 1284 if (!key) 1285 key = efx->rss_context.rx_hash_key; 1286 if (!indir) 1287 indir = efx->rss_context.rx_indir_table; 1288 1289 return efx->type->rx_push_rss_config(efx, true, indir, key); 1290 } 1291 1292 int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) 1293 { 1294 struct efx_nic *efx = efx_netdev_priv(net_dev); 1295 int rc; 1296 1297 rc = efx->type->map_reset_flags(flags); 1298 if (rc < 0) 1299 return rc; 1300 1301 return efx_reset(efx, rc); 1302 } 1303 1304 int efx_ethtool_get_module_eeprom(struct net_device *net_dev, 1305 struct ethtool_eeprom *ee, 1306 u8 *data) 1307 { 1308 struct efx_nic *efx = efx_netdev_priv(net_dev); 1309 int ret; 1310 1311 mutex_lock(&efx->mac_lock); 1312 ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data); 1313 mutex_unlock(&efx->mac_lock); 1314 1315 return ret; 1316 } 1317 1318 int efx_ethtool_get_module_info(struct net_device *net_dev, 1319 struct ethtool_modinfo *modinfo) 1320 { 1321 struct efx_nic *efx = efx_netdev_priv(net_dev); 1322 int ret; 1323 1324 mutex_lock(&efx->mac_lock); 1325 ret = efx_mcdi_phy_get_module_info(efx, modinfo); 1326 mutex_unlock(&efx->mac_lock); 1327 1328 return ret; 1329 } 1330