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, efx_driver_name, 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 /* Restart autonegotiation */ 177 int efx_ethtool_nway_reset(struct net_device *net_dev) 178 { 179 struct efx_nic *efx = netdev_priv(net_dev); 180 181 return mdio45_nway_restart(&efx->mdio); 182 } 183 184 void efx_ethtool_get_pauseparam(struct net_device *net_dev, 185 struct ethtool_pauseparam *pause) 186 { 187 struct efx_nic *efx = netdev_priv(net_dev); 188 189 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX); 190 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX); 191 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO); 192 } 193 194 int efx_ethtool_set_pauseparam(struct net_device *net_dev, 195 struct ethtool_pauseparam *pause) 196 { 197 struct efx_nic *efx = netdev_priv(net_dev); 198 u8 wanted_fc, old_fc; 199 u32 old_adv; 200 int rc = 0; 201 202 mutex_lock(&efx->mac_lock); 203 204 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) | 205 (pause->tx_pause ? EFX_FC_TX : 0) | 206 (pause->autoneg ? EFX_FC_AUTO : 0)); 207 208 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) { 209 netif_dbg(efx, drv, efx->net_dev, 210 "Flow control unsupported: tx ON rx OFF\n"); 211 rc = -EINVAL; 212 goto out; 213 } 214 215 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) { 216 netif_dbg(efx, drv, efx->net_dev, 217 "Autonegotiation is disabled\n"); 218 rc = -EINVAL; 219 goto out; 220 } 221 222 /* Hook for Falcon bug 11482 workaround */ 223 if (efx->type->prepare_enable_fc_tx && 224 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX)) 225 efx->type->prepare_enable_fc_tx(efx); 226 227 old_adv = efx->link_advertising[0]; 228 old_fc = efx->wanted_fc; 229 efx_link_set_wanted_fc(efx, wanted_fc); 230 if (efx->link_advertising[0] != old_adv || 231 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) { 232 rc = efx->phy_op->reconfigure(efx); 233 if (rc) { 234 netif_err(efx, drv, efx->net_dev, 235 "Unable to advertise requested flow " 236 "control setting\n"); 237 goto out; 238 } 239 } 240 241 /* Reconfigure the MAC. The PHY *may* generate a link state change event 242 * if the user just changed the advertised capabilities, but there's no 243 * harm doing this twice */ 244 efx_mac_reconfigure(efx, false); 245 246 out: 247 mutex_unlock(&efx->mac_lock); 248 249 return rc; 250 } 251 252 /** 253 * efx_fill_test - fill in an individual self-test entry 254 * @test_index: Index of the test 255 * @strings: Ethtool strings, or %NULL 256 * @data: Ethtool test results, or %NULL 257 * @test: Pointer to test result (used only if data != %NULL) 258 * @unit_format: Unit name format (e.g. "chan\%d") 259 * @unit_id: Unit id (e.g. 0 for "chan0") 260 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent") 261 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent") 262 * 263 * Fill in an individual self-test entry. 264 */ 265 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data, 266 int *test, const char *unit_format, int unit_id, 267 const char *test_format, const char *test_id) 268 { 269 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN]; 270 271 /* Fill data value, if applicable */ 272 if (data) 273 data[test_index] = *test; 274 275 /* Fill string, if applicable */ 276 if (strings) { 277 if (strchr(unit_format, '%')) 278 snprintf(unit_str, sizeof(unit_str), 279 unit_format, unit_id); 280 else 281 strcpy(unit_str, unit_format); 282 snprintf(test_str, sizeof(test_str), test_format, test_id); 283 snprintf(strings + test_index * ETH_GSTRING_LEN, 284 ETH_GSTRING_LEN, 285 "%-6s %-24s", unit_str, test_str); 286 } 287 } 288 289 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel 290 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label 291 #define EFX_LOOPBACK_NAME(_mode, _counter) \ 292 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode) 293 294 /** 295 * efx_fill_loopback_test - fill in a block of loopback self-test entries 296 * @efx: Efx NIC 297 * @lb_tests: Efx loopback self-test results structure 298 * @mode: Loopback test mode 299 * @test_index: Starting index of the test 300 * @strings: Ethtool strings, or %NULL 301 * @data: Ethtool test results, or %NULL 302 * 303 * Fill in a block of loopback self-test entries. Return new test 304 * index. 305 */ 306 static int efx_fill_loopback_test(struct efx_nic *efx, 307 struct efx_loopback_self_tests *lb_tests, 308 enum efx_loopback_mode mode, 309 unsigned int test_index, 310 u8 *strings, u64 *data) 311 { 312 struct efx_channel *channel = 313 efx_get_channel(efx, efx->tx_channel_offset); 314 struct efx_tx_queue *tx_queue; 315 316 efx_for_each_channel_tx_queue(tx_queue, channel) { 317 efx_fill_test(test_index++, strings, data, 318 &lb_tests->tx_sent[tx_queue->label], 319 EFX_TX_QUEUE_NAME(tx_queue), 320 EFX_LOOPBACK_NAME(mode, "tx_sent")); 321 efx_fill_test(test_index++, strings, data, 322 &lb_tests->tx_done[tx_queue->label], 323 EFX_TX_QUEUE_NAME(tx_queue), 324 EFX_LOOPBACK_NAME(mode, "tx_done")); 325 } 326 efx_fill_test(test_index++, strings, data, 327 &lb_tests->rx_good, 328 "rx", 0, 329 EFX_LOOPBACK_NAME(mode, "rx_good")); 330 efx_fill_test(test_index++, strings, data, 331 &lb_tests->rx_bad, 332 "rx", 0, 333 EFX_LOOPBACK_NAME(mode, "rx_bad")); 334 335 return test_index; 336 } 337 338 /** 339 * efx_ethtool_fill_self_tests - get self-test details 340 * @efx: Efx NIC 341 * @tests: Efx self-test results structure, or %NULL 342 * @strings: Ethtool strings, or %NULL 343 * @data: Ethtool test results, or %NULL 344 * 345 * Get self-test number of strings, strings, and/or test results. 346 * Return number of strings (== number of test results). 347 * 348 * The reason for merging these three functions is to make sure that 349 * they can never be inconsistent. 350 */ 351 int efx_ethtool_fill_self_tests(struct efx_nic *efx, 352 struct efx_self_tests *tests, 353 u8 *strings, u64 *data) 354 { 355 struct efx_channel *channel; 356 unsigned int n = 0, i; 357 enum efx_loopback_mode mode; 358 359 efx_fill_test(n++, strings, data, &tests->phy_alive, 360 "phy", 0, "alive", NULL); 361 efx_fill_test(n++, strings, data, &tests->nvram, 362 "core", 0, "nvram", NULL); 363 efx_fill_test(n++, strings, data, &tests->interrupt, 364 "core", 0, "interrupt", NULL); 365 366 /* Event queues */ 367 efx_for_each_channel(channel, efx) { 368 efx_fill_test(n++, strings, data, 369 &tests->eventq_dma[channel->channel], 370 EFX_CHANNEL_NAME(channel), 371 "eventq.dma", NULL); 372 efx_fill_test(n++, strings, data, 373 &tests->eventq_int[channel->channel], 374 EFX_CHANNEL_NAME(channel), 375 "eventq.int", NULL); 376 } 377 378 efx_fill_test(n++, strings, data, &tests->memory, 379 "core", 0, "memory", NULL); 380 efx_fill_test(n++, strings, data, &tests->registers, 381 "core", 0, "registers", NULL); 382 383 if (efx->phy_op->run_tests != NULL) { 384 EFX_WARN_ON_PARANOID(efx->phy_op->test_name == NULL); 385 386 for (i = 0; true; ++i) { 387 const char *name; 388 389 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS); 390 name = efx->phy_op->test_name(efx, i); 391 if (name == NULL) 392 break; 393 394 efx_fill_test(n++, strings, data, &tests->phy_ext[i], 395 "phy", 0, name, NULL); 396 } 397 } 398 399 /* Loopback tests */ 400 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) { 401 if (!(efx->loopback_modes & (1 << mode))) 402 continue; 403 n = efx_fill_loopback_test(efx, 404 &tests->loopback[mode], mode, n, 405 strings, data); 406 } 407 408 return n; 409 } 410 411 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings) 412 { 413 size_t n_stats = 0; 414 struct efx_channel *channel; 415 416 efx_for_each_channel(channel, efx) { 417 if (efx_channel_has_tx_queues(channel)) { 418 n_stats++; 419 if (strings != NULL) { 420 snprintf(strings, ETH_GSTRING_LEN, 421 "tx-%u.tx_packets", 422 channel->tx_queue[0].queue / 423 EFX_TXQ_TYPES); 424 425 strings += ETH_GSTRING_LEN; 426 } 427 } 428 } 429 efx_for_each_channel(channel, efx) { 430 if (efx_channel_has_rx_queue(channel)) { 431 n_stats++; 432 if (strings != NULL) { 433 snprintf(strings, ETH_GSTRING_LEN, 434 "rx-%d.rx_packets", channel->channel); 435 strings += ETH_GSTRING_LEN; 436 } 437 } 438 } 439 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 440 unsigned short xdp; 441 442 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 443 n_stats++; 444 if (strings) { 445 snprintf(strings, ETH_GSTRING_LEN, 446 "tx-xdp-cpu-%hu.tx_packets", xdp); 447 strings += ETH_GSTRING_LEN; 448 } 449 } 450 } 451 452 return n_stats; 453 } 454 455 int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set) 456 { 457 struct efx_nic *efx = netdev_priv(net_dev); 458 459 switch (string_set) { 460 case ETH_SS_STATS: 461 return efx->type->describe_stats(efx, NULL) + 462 EFX_ETHTOOL_SW_STAT_COUNT + 463 efx_describe_per_queue_stats(efx, NULL) + 464 efx_ptp_describe_stats(efx, NULL); 465 case ETH_SS_TEST: 466 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL); 467 default: 468 return -EINVAL; 469 } 470 } 471 472 void efx_ethtool_get_strings(struct net_device *net_dev, 473 u32 string_set, u8 *strings) 474 { 475 struct efx_nic *efx = netdev_priv(net_dev); 476 int i; 477 478 switch (string_set) { 479 case ETH_SS_STATS: 480 strings += (efx->type->describe_stats(efx, strings) * 481 ETH_GSTRING_LEN); 482 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) 483 strlcpy(strings + i * ETH_GSTRING_LEN, 484 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN); 485 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN; 486 strings += (efx_describe_per_queue_stats(efx, strings) * 487 ETH_GSTRING_LEN); 488 efx_ptp_describe_stats(efx, strings); 489 break; 490 case ETH_SS_TEST: 491 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL); 492 break; 493 default: 494 /* No other string sets */ 495 break; 496 } 497 } 498 499 void efx_ethtool_get_stats(struct net_device *net_dev, 500 struct ethtool_stats *stats, 501 u64 *data) 502 { 503 struct efx_nic *efx = netdev_priv(net_dev); 504 const struct efx_sw_stat_desc *stat; 505 struct efx_channel *channel; 506 struct efx_tx_queue *tx_queue; 507 struct efx_rx_queue *rx_queue; 508 int i; 509 510 spin_lock_bh(&efx->stats_lock); 511 512 /* Get NIC statistics */ 513 data += efx->type->update_stats(efx, data, NULL); 514 515 /* Get software statistics */ 516 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) { 517 stat = &efx_sw_stat_desc[i]; 518 switch (stat->source) { 519 case EFX_ETHTOOL_STAT_SOURCE_nic: 520 data[i] = stat->get_stat((void *)efx + stat->offset); 521 break; 522 case EFX_ETHTOOL_STAT_SOURCE_channel: 523 data[i] = 0; 524 efx_for_each_channel(channel, efx) 525 data[i] += stat->get_stat((void *)channel + 526 stat->offset); 527 break; 528 case EFX_ETHTOOL_STAT_SOURCE_tx_queue: 529 data[i] = 0; 530 efx_for_each_channel(channel, efx) { 531 efx_for_each_channel_tx_queue(tx_queue, channel) 532 data[i] += 533 stat->get_stat((void *)tx_queue 534 + stat->offset); 535 } 536 break; 537 } 538 } 539 data += EFX_ETHTOOL_SW_STAT_COUNT; 540 541 spin_unlock_bh(&efx->stats_lock); 542 543 efx_for_each_channel(channel, efx) { 544 if (efx_channel_has_tx_queues(channel)) { 545 *data = 0; 546 efx_for_each_channel_tx_queue(tx_queue, channel) { 547 *data += tx_queue->tx_packets; 548 } 549 data++; 550 } 551 } 552 efx_for_each_channel(channel, efx) { 553 if (efx_channel_has_rx_queue(channel)) { 554 *data = 0; 555 efx_for_each_channel_rx_queue(rx_queue, channel) { 556 *data += rx_queue->rx_packets; 557 } 558 data++; 559 } 560 } 561 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 562 int xdp; 563 564 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 565 data[0] = efx->xdp_tx_queues[xdp]->tx_packets; 566 data++; 567 } 568 } 569 570 efx_ptp_update_stats(efx, data); 571 } 572 573 /* This must be called with rtnl_lock held. */ 574 int efx_ethtool_get_link_ksettings(struct net_device *net_dev, 575 struct ethtool_link_ksettings *cmd) 576 { 577 struct efx_nic *efx = netdev_priv(net_dev); 578 struct efx_link_state *link_state = &efx->link_state; 579 u32 supported; 580 581 mutex_lock(&efx->mac_lock); 582 efx->phy_op->get_link_ksettings(efx, cmd); 583 mutex_unlock(&efx->mac_lock); 584 585 /* Both MACs support pause frames (bidirectional and respond-only) */ 586 ethtool_convert_link_mode_to_legacy_u32(&supported, 587 cmd->link_modes.supported); 588 589 supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause; 590 591 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, 592 supported); 593 594 if (LOOPBACK_INTERNAL(efx)) { 595 cmd->base.speed = link_state->speed; 596 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; 597 } 598 599 return 0; 600 } 601 602 /* This must be called with rtnl_lock held. */ 603 int efx_ethtool_set_link_ksettings(struct net_device *net_dev, 604 const struct ethtool_link_ksettings *cmd) 605 { 606 struct efx_nic *efx = netdev_priv(net_dev); 607 int rc; 608 609 /* GMAC does not support 1000Mbps HD */ 610 if ((cmd->base.speed == SPEED_1000) && 611 (cmd->base.duplex != DUPLEX_FULL)) { 612 netif_dbg(efx, drv, efx->net_dev, 613 "rejecting unsupported 1000Mbps HD setting\n"); 614 return -EINVAL; 615 } 616 617 mutex_lock(&efx->mac_lock); 618 rc = efx->phy_op->set_link_ksettings(efx, cmd); 619 mutex_unlock(&efx->mac_lock); 620 return rc; 621 } 622 623 int efx_ethtool_get_fecparam(struct net_device *net_dev, 624 struct ethtool_fecparam *fecparam) 625 { 626 struct efx_nic *efx = netdev_priv(net_dev); 627 int rc; 628 629 if (!efx->phy_op || !efx->phy_op->get_fecparam) 630 return -EOPNOTSUPP; 631 mutex_lock(&efx->mac_lock); 632 rc = efx->phy_op->get_fecparam(efx, fecparam); 633 mutex_unlock(&efx->mac_lock); 634 635 return rc; 636 } 637 638 int efx_ethtool_set_fecparam(struct net_device *net_dev, 639 struct ethtool_fecparam *fecparam) 640 { 641 struct efx_nic *efx = netdev_priv(net_dev); 642 int rc; 643 644 if (!efx->phy_op || !efx->phy_op->get_fecparam) 645 return -EOPNOTSUPP; 646 mutex_lock(&efx->mac_lock); 647 rc = efx->phy_op->set_fecparam(efx, fecparam); 648 mutex_unlock(&efx->mac_lock); 649 650 return rc; 651 } 652 653 /* MAC address mask including only I/G bit */ 654 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; 655 656 #define IP4_ADDR_FULL_MASK ((__force __be32)~0) 657 #define IP_PROTO_FULL_MASK 0xFF 658 #define PORT_FULL_MASK ((__force __be16)~0) 659 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 660 661 static inline void ip6_fill_mask(__be32 *mask) 662 { 663 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0; 664 } 665 666 static int efx_ethtool_get_class_rule(struct efx_nic *efx, 667 struct ethtool_rx_flow_spec *rule, 668 u32 *rss_context) 669 { 670 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 671 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 672 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 673 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 674 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 675 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 676 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 677 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 678 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 679 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 680 struct efx_filter_spec spec; 681 int rc; 682 683 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, 684 rule->location, &spec); 685 if (rc) 686 return rc; 687 688 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP) 689 rule->ring_cookie = RX_CLS_FLOW_DISC; 690 else 691 rule->ring_cookie = spec.dmaq_id; 692 693 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 694 spec.ether_type == htons(ETH_P_IP) && 695 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 696 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 697 !(spec.match_flags & 698 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 699 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 700 EFX_FILTER_MATCH_IP_PROTO | 701 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 702 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 703 TCP_V4_FLOW : UDP_V4_FLOW); 704 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 705 ip_entry->ip4dst = spec.loc_host[0]; 706 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 707 } 708 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 709 ip_entry->ip4src = spec.rem_host[0]; 710 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 711 } 712 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 713 ip_entry->pdst = spec.loc_port; 714 ip_mask->pdst = PORT_FULL_MASK; 715 } 716 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 717 ip_entry->psrc = spec.rem_port; 718 ip_mask->psrc = PORT_FULL_MASK; 719 } 720 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 721 spec.ether_type == htons(ETH_P_IPV6) && 722 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 723 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 724 !(spec.match_flags & 725 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 726 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 727 EFX_FILTER_MATCH_IP_PROTO | 728 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 729 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 730 TCP_V6_FLOW : UDP_V6_FLOW); 731 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 732 memcpy(ip6_entry->ip6dst, spec.loc_host, 733 sizeof(ip6_entry->ip6dst)); 734 ip6_fill_mask(ip6_mask->ip6dst); 735 } 736 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 737 memcpy(ip6_entry->ip6src, spec.rem_host, 738 sizeof(ip6_entry->ip6src)); 739 ip6_fill_mask(ip6_mask->ip6src); 740 } 741 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 742 ip6_entry->pdst = spec.loc_port; 743 ip6_mask->pdst = PORT_FULL_MASK; 744 } 745 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 746 ip6_entry->psrc = spec.rem_port; 747 ip6_mask->psrc = PORT_FULL_MASK; 748 } 749 } else if (!(spec.match_flags & 750 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG | 751 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE | 752 EFX_FILTER_MATCH_OUTER_VID))) { 753 rule->flow_type = ETHER_FLOW; 754 if (spec.match_flags & 755 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) { 756 ether_addr_copy(mac_entry->h_dest, spec.loc_mac); 757 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC) 758 eth_broadcast_addr(mac_mask->h_dest); 759 else 760 ether_addr_copy(mac_mask->h_dest, 761 mac_addr_ig_mask); 762 } 763 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) { 764 ether_addr_copy(mac_entry->h_source, spec.rem_mac); 765 eth_broadcast_addr(mac_mask->h_source); 766 } 767 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) { 768 mac_entry->h_proto = spec.ether_type; 769 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 770 } 771 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 772 spec.ether_type == htons(ETH_P_IP) && 773 !(spec.match_flags & 774 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 775 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 776 EFX_FILTER_MATCH_IP_PROTO))) { 777 rule->flow_type = IPV4_USER_FLOW; 778 uip_entry->ip_ver = ETH_RX_NFC_IP4; 779 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 780 uip_mask->proto = IP_PROTO_FULL_MASK; 781 uip_entry->proto = spec.ip_proto; 782 } 783 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 784 uip_entry->ip4dst = spec.loc_host[0]; 785 uip_mask->ip4dst = IP4_ADDR_FULL_MASK; 786 } 787 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 788 uip_entry->ip4src = spec.rem_host[0]; 789 uip_mask->ip4src = IP4_ADDR_FULL_MASK; 790 } 791 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 792 spec.ether_type == htons(ETH_P_IPV6) && 793 !(spec.match_flags & 794 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 795 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 796 EFX_FILTER_MATCH_IP_PROTO))) { 797 rule->flow_type = IPV6_USER_FLOW; 798 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 799 uip6_mask->l4_proto = IP_PROTO_FULL_MASK; 800 uip6_entry->l4_proto = spec.ip_proto; 801 } 802 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 803 memcpy(uip6_entry->ip6dst, spec.loc_host, 804 sizeof(uip6_entry->ip6dst)); 805 ip6_fill_mask(uip6_mask->ip6dst); 806 } 807 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 808 memcpy(uip6_entry->ip6src, spec.rem_host, 809 sizeof(uip6_entry->ip6src)); 810 ip6_fill_mask(uip6_mask->ip6src); 811 } 812 } else { 813 /* The above should handle all filters that we insert */ 814 WARN_ON(1); 815 return -EINVAL; 816 } 817 818 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) { 819 rule->flow_type |= FLOW_EXT; 820 rule->h_ext.vlan_tci = spec.outer_vid; 821 rule->m_ext.vlan_tci = htons(0xfff); 822 } 823 824 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) { 825 rule->flow_type |= FLOW_RSS; 826 *rss_context = spec.rss_context; 827 } 828 829 return rc; 830 } 831 832 int efx_ethtool_get_rxnfc(struct net_device *net_dev, 833 struct ethtool_rxnfc *info, u32 *rule_locs) 834 { 835 struct efx_nic *efx = netdev_priv(net_dev); 836 u32 rss_context = 0; 837 s32 rc = 0; 838 839 switch (info->cmd) { 840 case ETHTOOL_GRXRINGS: 841 info->data = efx->n_rx_channels; 842 return 0; 843 844 case ETHTOOL_GRXFH: { 845 struct efx_rss_context *ctx = &efx->rss_context; 846 __u64 data; 847 848 mutex_lock(&efx->rss_lock); 849 if (info->flow_type & FLOW_RSS && info->rss_context) { 850 ctx = efx_find_rss_context_entry(efx, info->rss_context); 851 if (!ctx) { 852 rc = -ENOENT; 853 goto out_unlock; 854 } 855 } 856 857 data = 0; 858 if (!efx_rss_active(ctx)) /* No RSS */ 859 goto out_setdata_unlock; 860 861 switch (info->flow_type & ~FLOW_RSS) { 862 case UDP_V4_FLOW: 863 case UDP_V6_FLOW: 864 if (ctx->rx_hash_udp_4tuple) 865 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 | 866 RXH_IP_SRC | RXH_IP_DST); 867 else 868 data = RXH_IP_SRC | RXH_IP_DST; 869 break; 870 case TCP_V4_FLOW: 871 case TCP_V6_FLOW: 872 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 | 873 RXH_IP_SRC | RXH_IP_DST); 874 break; 875 case SCTP_V4_FLOW: 876 case SCTP_V6_FLOW: 877 case AH_ESP_V4_FLOW: 878 case AH_ESP_V6_FLOW: 879 case IPV4_FLOW: 880 case IPV6_FLOW: 881 data = RXH_IP_SRC | RXH_IP_DST; 882 break; 883 default: 884 break; 885 } 886 out_setdata_unlock: 887 info->data = data; 888 out_unlock: 889 mutex_unlock(&efx->rss_lock); 890 return rc; 891 } 892 893 case ETHTOOL_GRXCLSRLCNT: 894 info->data = efx_filter_get_rx_id_limit(efx); 895 if (info->data == 0) 896 return -EOPNOTSUPP; 897 info->data |= RX_CLS_LOC_SPECIAL; 898 info->rule_cnt = 899 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL); 900 return 0; 901 902 case ETHTOOL_GRXCLSRULE: 903 if (efx_filter_get_rx_id_limit(efx) == 0) 904 return -EOPNOTSUPP; 905 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context); 906 if (rc < 0) 907 return rc; 908 if (info->fs.flow_type & FLOW_RSS) 909 info->rss_context = rss_context; 910 return 0; 911 912 case ETHTOOL_GRXCLSRLALL: 913 info->data = efx_filter_get_rx_id_limit(efx); 914 if (info->data == 0) 915 return -EOPNOTSUPP; 916 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL, 917 rule_locs, info->rule_cnt); 918 if (rc < 0) 919 return rc; 920 info->rule_cnt = rc; 921 return 0; 922 923 default: 924 return -EOPNOTSUPP; 925 } 926 } 927 928 static inline bool ip6_mask_is_full(__be32 mask[4]) 929 { 930 return !~(mask[0] & mask[1] & mask[2] & mask[3]); 931 } 932 933 static inline bool ip6_mask_is_empty(__be32 mask[4]) 934 { 935 return !(mask[0] | mask[1] | mask[2] | mask[3]); 936 } 937 938 static int efx_ethtool_set_class_rule(struct efx_nic *efx, 939 struct ethtool_rx_flow_spec *rule, 940 u32 rss_context) 941 { 942 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 943 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 944 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 945 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 946 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 947 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 948 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 949 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 950 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS); 951 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 952 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 953 enum efx_filter_flags flags = 0; 954 struct efx_filter_spec spec; 955 int rc; 956 957 /* Check that user wants us to choose the location */ 958 if (rule->location != RX_CLS_LOC_ANY) 959 return -EINVAL; 960 961 /* Range-check ring_cookie */ 962 if (rule->ring_cookie >= efx->n_rx_channels && 963 rule->ring_cookie != RX_CLS_FLOW_DISC) 964 return -EINVAL; 965 966 /* Check for unsupported extensions */ 967 if ((rule->flow_type & FLOW_EXT) && 968 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 969 rule->m_ext.data[1])) 970 return -EINVAL; 971 972 if (efx->rx_scatter) 973 flags |= EFX_FILTER_FLAG_RX_SCATTER; 974 if (rule->flow_type & FLOW_RSS) 975 flags |= EFX_FILTER_FLAG_RX_RSS; 976 977 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags, 978 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 979 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 980 981 if (rule->flow_type & FLOW_RSS) 982 spec.rss_context = rss_context; 983 984 switch (flow_type) { 985 case TCP_V4_FLOW: 986 case UDP_V4_FLOW: 987 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 988 EFX_FILTER_MATCH_IP_PROTO); 989 spec.ether_type = htons(ETH_P_IP); 990 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP 991 : IPPROTO_UDP; 992 if (ip_mask->ip4dst) { 993 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 994 return -EINVAL; 995 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 996 spec.loc_host[0] = ip_entry->ip4dst; 997 } 998 if (ip_mask->ip4src) { 999 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 1000 return -EINVAL; 1001 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1002 spec.rem_host[0] = ip_entry->ip4src; 1003 } 1004 if (ip_mask->pdst) { 1005 if (ip_mask->pdst != PORT_FULL_MASK) 1006 return -EINVAL; 1007 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 1008 spec.loc_port = ip_entry->pdst; 1009 } 1010 if (ip_mask->psrc) { 1011 if (ip_mask->psrc != PORT_FULL_MASK) 1012 return -EINVAL; 1013 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 1014 spec.rem_port = ip_entry->psrc; 1015 } 1016 if (ip_mask->tos) 1017 return -EINVAL; 1018 break; 1019 1020 case TCP_V6_FLOW: 1021 case UDP_V6_FLOW: 1022 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 1023 EFX_FILTER_MATCH_IP_PROTO); 1024 spec.ether_type = htons(ETH_P_IPV6); 1025 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP 1026 : IPPROTO_UDP; 1027 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { 1028 if (!ip6_mask_is_full(ip6_mask->ip6dst)) 1029 return -EINVAL; 1030 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1031 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host)); 1032 } 1033 if (!ip6_mask_is_empty(ip6_mask->ip6src)) { 1034 if (!ip6_mask_is_full(ip6_mask->ip6src)) 1035 return -EINVAL; 1036 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1037 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host)); 1038 } 1039 if (ip6_mask->pdst) { 1040 if (ip6_mask->pdst != PORT_FULL_MASK) 1041 return -EINVAL; 1042 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 1043 spec.loc_port = ip6_entry->pdst; 1044 } 1045 if (ip6_mask->psrc) { 1046 if (ip6_mask->psrc != PORT_FULL_MASK) 1047 return -EINVAL; 1048 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 1049 spec.rem_port = ip6_entry->psrc; 1050 } 1051 if (ip6_mask->tclass) 1052 return -EINVAL; 1053 break; 1054 1055 case IPV4_USER_FLOW: 1056 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver || 1057 uip_entry->ip_ver != ETH_RX_NFC_IP4) 1058 return -EINVAL; 1059 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1060 spec.ether_type = htons(ETH_P_IP); 1061 if (uip_mask->ip4dst) { 1062 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1063 return -EINVAL; 1064 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1065 spec.loc_host[0] = uip_entry->ip4dst; 1066 } 1067 if (uip_mask->ip4src) { 1068 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK) 1069 return -EINVAL; 1070 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1071 spec.rem_host[0] = uip_entry->ip4src; 1072 } 1073 if (uip_mask->proto) { 1074 if (uip_mask->proto != IP_PROTO_FULL_MASK) 1075 return -EINVAL; 1076 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1077 spec.ip_proto = uip_entry->proto; 1078 } 1079 break; 1080 1081 case IPV6_USER_FLOW: 1082 if (uip6_mask->l4_4_bytes || uip6_mask->tclass) 1083 return -EINVAL; 1084 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1085 spec.ether_type = htons(ETH_P_IPV6); 1086 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) { 1087 if (!ip6_mask_is_full(uip6_mask->ip6dst)) 1088 return -EINVAL; 1089 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1090 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host)); 1091 } 1092 if (!ip6_mask_is_empty(uip6_mask->ip6src)) { 1093 if (!ip6_mask_is_full(uip6_mask->ip6src)) 1094 return -EINVAL; 1095 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1096 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host)); 1097 } 1098 if (uip6_mask->l4_proto) { 1099 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK) 1100 return -EINVAL; 1101 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1102 spec.ip_proto = uip6_entry->l4_proto; 1103 } 1104 break; 1105 1106 case ETHER_FLOW: 1107 if (!is_zero_ether_addr(mac_mask->h_dest)) { 1108 if (ether_addr_equal(mac_mask->h_dest, 1109 mac_addr_ig_mask)) 1110 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG; 1111 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 1112 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC; 1113 else 1114 return -EINVAL; 1115 ether_addr_copy(spec.loc_mac, mac_entry->h_dest); 1116 } 1117 if (!is_zero_ether_addr(mac_mask->h_source)) { 1118 if (!is_broadcast_ether_addr(mac_mask->h_source)) 1119 return -EINVAL; 1120 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC; 1121 ether_addr_copy(spec.rem_mac, mac_entry->h_source); 1122 } 1123 if (mac_mask->h_proto) { 1124 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 1125 return -EINVAL; 1126 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE; 1127 spec.ether_type = mac_entry->h_proto; 1128 } 1129 break; 1130 1131 default: 1132 return -EINVAL; 1133 } 1134 1135 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 1136 if (rule->m_ext.vlan_tci != htons(0xfff)) 1137 return -EINVAL; 1138 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID; 1139 spec.outer_vid = rule->h_ext.vlan_tci; 1140 } 1141 1142 rc = efx_filter_insert_filter(efx, &spec, true); 1143 if (rc < 0) 1144 return rc; 1145 1146 rule->location = rc; 1147 return 0; 1148 } 1149 1150 int efx_ethtool_set_rxnfc(struct net_device *net_dev, 1151 struct ethtool_rxnfc *info) 1152 { 1153 struct efx_nic *efx = netdev_priv(net_dev); 1154 1155 if (efx_filter_get_rx_id_limit(efx) == 0) 1156 return -EOPNOTSUPP; 1157 1158 switch (info->cmd) { 1159 case ETHTOOL_SRXCLSRLINS: 1160 return efx_ethtool_set_class_rule(efx, &info->fs, 1161 info->rss_context); 1162 1163 case ETHTOOL_SRXCLSRLDEL: 1164 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, 1165 info->fs.location); 1166 1167 default: 1168 return -EOPNOTSUPP; 1169 } 1170 } 1171 1172 u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1173 { 1174 struct efx_nic *efx = netdev_priv(net_dev); 1175 1176 if (efx->n_rx_channels == 1) 1177 return 0; 1178 return ARRAY_SIZE(efx->rss_context.rx_indir_table); 1179 } 1180 1181 u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev) 1182 { 1183 struct efx_nic *efx = netdev_priv(net_dev); 1184 1185 return efx->type->rx_hash_key_size; 1186 } 1187 1188 int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key, 1189 u8 *hfunc) 1190 { 1191 struct efx_nic *efx = netdev_priv(net_dev); 1192 int rc; 1193 1194 rc = efx->type->rx_pull_rss_config(efx); 1195 if (rc) 1196 return rc; 1197 1198 if (hfunc) 1199 *hfunc = ETH_RSS_HASH_TOP; 1200 if (indir) 1201 memcpy(indir, efx->rss_context.rx_indir_table, 1202 sizeof(efx->rss_context.rx_indir_table)); 1203 if (key) 1204 memcpy(key, efx->rss_context.rx_hash_key, 1205 efx->type->rx_hash_key_size); 1206 return 0; 1207 } 1208 1209 int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir, 1210 const u8 *key, const u8 hfunc) 1211 { 1212 struct efx_nic *efx = netdev_priv(net_dev); 1213 1214 /* Hash function is Toeplitz, cannot be changed */ 1215 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 1216 return -EOPNOTSUPP; 1217 if (!indir && !key) 1218 return 0; 1219 1220 if (!key) 1221 key = efx->rss_context.rx_hash_key; 1222 if (!indir) 1223 indir = efx->rss_context.rx_indir_table; 1224 1225 return efx->type->rx_push_rss_config(efx, true, indir, key); 1226 } 1227 1228 int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir, 1229 u8 *key, u8 *hfunc, u32 rss_context) 1230 { 1231 struct efx_nic *efx = netdev_priv(net_dev); 1232 struct efx_rss_context *ctx; 1233 int rc = 0; 1234 1235 if (!efx->type->rx_pull_rss_context_config) 1236 return -EOPNOTSUPP; 1237 1238 mutex_lock(&efx->rss_lock); 1239 ctx = efx_find_rss_context_entry(efx, rss_context); 1240 if (!ctx) { 1241 rc = -ENOENT; 1242 goto out_unlock; 1243 } 1244 rc = efx->type->rx_pull_rss_context_config(efx, ctx); 1245 if (rc) 1246 goto out_unlock; 1247 1248 if (hfunc) 1249 *hfunc = ETH_RSS_HASH_TOP; 1250 if (indir) 1251 memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table)); 1252 if (key) 1253 memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size); 1254 out_unlock: 1255 mutex_unlock(&efx->rss_lock); 1256 return rc; 1257 } 1258 1259 int efx_ethtool_set_rxfh_context(struct net_device *net_dev, 1260 const u32 *indir, const u8 *key, 1261 const u8 hfunc, u32 *rss_context, 1262 bool delete) 1263 { 1264 struct efx_nic *efx = netdev_priv(net_dev); 1265 struct efx_rss_context *ctx; 1266 bool allocated = false; 1267 int rc; 1268 1269 if (!efx->type->rx_push_rss_context_config) 1270 return -EOPNOTSUPP; 1271 /* Hash function is Toeplitz, cannot be changed */ 1272 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 1273 return -EOPNOTSUPP; 1274 1275 mutex_lock(&efx->rss_lock); 1276 1277 if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { 1278 if (delete) { 1279 /* alloc + delete == Nothing to do */ 1280 rc = -EINVAL; 1281 goto out_unlock; 1282 } 1283 ctx = efx_alloc_rss_context_entry(efx); 1284 if (!ctx) { 1285 rc = -ENOMEM; 1286 goto out_unlock; 1287 } 1288 ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID; 1289 /* Initialise indir table and key to defaults */ 1290 efx_set_default_rx_indir_table(efx, ctx); 1291 netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key)); 1292 allocated = true; 1293 } else { 1294 ctx = efx_find_rss_context_entry(efx, *rss_context); 1295 if (!ctx) { 1296 rc = -ENOENT; 1297 goto out_unlock; 1298 } 1299 } 1300 1301 if (delete) { 1302 /* delete this context */ 1303 rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL); 1304 if (!rc) 1305 efx_free_rss_context_entry(ctx); 1306 goto out_unlock; 1307 } 1308 1309 if (!key) 1310 key = ctx->rx_hash_key; 1311 if (!indir) 1312 indir = ctx->rx_indir_table; 1313 1314 rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key); 1315 if (rc && allocated) 1316 efx_free_rss_context_entry(ctx); 1317 else 1318 *rss_context = ctx->user_id; 1319 out_unlock: 1320 mutex_unlock(&efx->rss_lock); 1321 return rc; 1322 } 1323 1324 int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) 1325 { 1326 struct efx_nic *efx = netdev_priv(net_dev); 1327 int rc; 1328 1329 rc = efx->type->map_reset_flags(flags); 1330 if (rc < 0) 1331 return rc; 1332 1333 return efx_reset(efx, rc); 1334 } 1335 1336 int efx_ethtool_get_module_eeprom(struct net_device *net_dev, 1337 struct ethtool_eeprom *ee, 1338 u8 *data) 1339 { 1340 struct efx_nic *efx = netdev_priv(net_dev); 1341 int ret; 1342 1343 if (!efx->phy_op || !efx->phy_op->get_module_eeprom) 1344 return -EOPNOTSUPP; 1345 1346 mutex_lock(&efx->mac_lock); 1347 ret = efx->phy_op->get_module_eeprom(efx, ee, data); 1348 mutex_unlock(&efx->mac_lock); 1349 1350 return ret; 1351 } 1352 1353 int efx_ethtool_get_module_info(struct net_device *net_dev, 1354 struct ethtool_modinfo *modinfo) 1355 { 1356 struct efx_nic *efx = netdev_priv(net_dev); 1357 int ret; 1358 1359 if (!efx->phy_op || !efx->phy_op->get_module_info) 1360 return -EOPNOTSUPP; 1361 1362 mutex_lock(&efx->mac_lock); 1363 ret = efx->phy_op->get_module_info(efx, modinfo); 1364 mutex_unlock(&efx->mac_lock); 1365 1366 return ret; 1367 } 1368