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 20struct 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 43static u64 efx_get_uint_stat(void *field) 44{ 45 return *(unsigned int *)field; 46} 47 48static 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 68static 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_tobe_disc), 79 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err), 80 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err), 81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_ip_hdr_chksum_err), 82 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err), 83 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err), 84 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err), 85 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_err), 86 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch), 87 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc), 88 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events), 89 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets), 90 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops), 91 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops), 92 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx), 93 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect), 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 103void efx_ethtool_get_drvinfo(struct net_device *net_dev, 104 struct ethtool_drvinfo *info) 105{ 106 struct efx_nic *efx = netdev_priv(net_dev); 107 108 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); 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 114u32 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 121void 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 128void 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_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 168out: 169 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data); 170 kfree(efx_tests); 171fail: 172 if (rc) 173 test->flags |= ETH_TEST_FL_FAILED; 174} 175 176void 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 186int 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_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 238out: 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 */ 257static 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 */ 298static 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 */ 343int 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 398static 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 != NULL) { 407 snprintf(strings, ETH_GSTRING_LEN, 408 "tx-%u.tx_packets", 409 channel->tx_queue[0].queue / 410 EFX_MAX_TXQ_PER_CHANNEL); 411 412 strings += ETH_GSTRING_LEN; 413 } 414 } 415 } 416 efx_for_each_channel(channel, efx) { 417 if (efx_channel_has_rx_queue(channel)) { 418 n_stats++; 419 if (strings != NULL) { 420 snprintf(strings, ETH_GSTRING_LEN, 421 "rx-%d.rx_packets", channel->channel); 422 strings += ETH_GSTRING_LEN; 423 } 424 } 425 } 426 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 427 unsigned short xdp; 428 429 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 430 n_stats++; 431 if (strings) { 432 snprintf(strings, ETH_GSTRING_LEN, 433 "tx-xdp-cpu-%hu.tx_packets", xdp); 434 strings += ETH_GSTRING_LEN; 435 } 436 } 437 } 438 439 return n_stats; 440} 441 442int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set) 443{ 444 struct efx_nic *efx = netdev_priv(net_dev); 445 446 switch (string_set) { 447 case ETH_SS_STATS: 448 return efx->type->describe_stats(efx, NULL) + 449 EFX_ETHTOOL_SW_STAT_COUNT + 450 efx_describe_per_queue_stats(efx, NULL) + 451 efx_ptp_describe_stats(efx, NULL); 452 case ETH_SS_TEST: 453 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL); 454 default: 455 return -EINVAL; 456 } 457} 458 459void efx_ethtool_get_strings(struct net_device *net_dev, 460 u32 string_set, u8 *strings) 461{ 462 struct efx_nic *efx = netdev_priv(net_dev); 463 int i; 464 465 switch (string_set) { 466 case ETH_SS_STATS: 467 strings += (efx->type->describe_stats(efx, strings) * 468 ETH_GSTRING_LEN); 469 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) 470 strlcpy(strings + i * ETH_GSTRING_LEN, 471 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN); 472 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN; 473 strings += (efx_describe_per_queue_stats(efx, strings) * 474 ETH_GSTRING_LEN); 475 efx_ptp_describe_stats(efx, strings); 476 break; 477 case ETH_SS_TEST: 478 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL); 479 break; 480 default: 481 /* No other string sets */ 482 break; 483 } 484} 485 486void efx_ethtool_get_stats(struct net_device *net_dev, 487 struct ethtool_stats *stats, 488 u64 *data) 489{ 490 struct efx_nic *efx = netdev_priv(net_dev); 491 const struct efx_sw_stat_desc *stat; 492 struct efx_channel *channel; 493 struct efx_tx_queue *tx_queue; 494 struct efx_rx_queue *rx_queue; 495 int i; 496 497 spin_lock_bh(&efx->stats_lock); 498 499 /* Get NIC statistics */ 500 data += efx->type->update_stats(efx, data, NULL); 501 502 /* Get software statistics */ 503 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) { 504 stat = &efx_sw_stat_desc[i]; 505 switch (stat->source) { 506 case EFX_ETHTOOL_STAT_SOURCE_nic: 507 data[i] = stat->get_stat((void *)efx + stat->offset); 508 break; 509 case EFX_ETHTOOL_STAT_SOURCE_channel: 510 data[i] = 0; 511 efx_for_each_channel(channel, efx) 512 data[i] += stat->get_stat((void *)channel + 513 stat->offset); 514 break; 515 case EFX_ETHTOOL_STAT_SOURCE_tx_queue: 516 data[i] = 0; 517 efx_for_each_channel(channel, efx) { 518 efx_for_each_channel_tx_queue(tx_queue, channel) 519 data[i] += 520 stat->get_stat((void *)tx_queue 521 + stat->offset); 522 } 523 break; 524 } 525 } 526 data += EFX_ETHTOOL_SW_STAT_COUNT; 527 528 spin_unlock_bh(&efx->stats_lock); 529 530 efx_for_each_channel(channel, efx) { 531 if (efx_channel_has_tx_queues(channel)) { 532 *data = 0; 533 efx_for_each_channel_tx_queue(tx_queue, channel) { 534 *data += tx_queue->tx_packets; 535 } 536 data++; 537 } 538 } 539 efx_for_each_channel(channel, efx) { 540 if (efx_channel_has_rx_queue(channel)) { 541 *data = 0; 542 efx_for_each_channel_rx_queue(rx_queue, channel) { 543 *data += rx_queue->rx_packets; 544 } 545 data++; 546 } 547 } 548 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) { 549 int xdp; 550 551 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) { 552 data[0] = efx->xdp_tx_queues[xdp]->tx_packets; 553 data++; 554 } 555 } 556 557 efx_ptp_update_stats(efx, data); 558} 559 560/* This must be called with rtnl_lock held. */ 561int efx_ethtool_get_link_ksettings(struct net_device *net_dev, 562 struct ethtool_link_ksettings *cmd) 563{ 564 struct efx_nic *efx = netdev_priv(net_dev); 565 struct efx_link_state *link_state = &efx->link_state; 566 567 mutex_lock(&efx->mac_lock); 568 efx_mcdi_phy_get_link_ksettings(efx, cmd); 569 mutex_unlock(&efx->mac_lock); 570 571 /* Both MACs support pause frames (bidirectional and respond-only) */ 572 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 573 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause); 574 575 if (LOOPBACK_INTERNAL(efx)) { 576 cmd->base.speed = link_state->speed; 577 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; 578 } 579 580 return 0; 581} 582 583/* This must be called with rtnl_lock held. */ 584int efx_ethtool_set_link_ksettings(struct net_device *net_dev, 585 const struct ethtool_link_ksettings *cmd) 586{ 587 struct efx_nic *efx = netdev_priv(net_dev); 588 int rc; 589 590 /* GMAC does not support 1000Mbps HD */ 591 if ((cmd->base.speed == SPEED_1000) && 592 (cmd->base.duplex != DUPLEX_FULL)) { 593 netif_dbg(efx, drv, efx->net_dev, 594 "rejecting unsupported 1000Mbps HD setting\n"); 595 return -EINVAL; 596 } 597 598 mutex_lock(&efx->mac_lock); 599 rc = efx_mcdi_phy_set_link_ksettings(efx, cmd); 600 mutex_unlock(&efx->mac_lock); 601 return rc; 602} 603 604int efx_ethtool_get_fecparam(struct net_device *net_dev, 605 struct ethtool_fecparam *fecparam) 606{ 607 struct efx_nic *efx = netdev_priv(net_dev); 608 int rc; 609 610 mutex_lock(&efx->mac_lock); 611 rc = efx_mcdi_phy_get_fecparam(efx, fecparam); 612 mutex_unlock(&efx->mac_lock); 613 614 return rc; 615} 616 617int efx_ethtool_set_fecparam(struct net_device *net_dev, 618 struct ethtool_fecparam *fecparam) 619{ 620 struct efx_nic *efx = netdev_priv(net_dev); 621 int rc; 622 623 mutex_lock(&efx->mac_lock); 624 rc = efx_mcdi_phy_set_fecparam(efx, fecparam); 625 mutex_unlock(&efx->mac_lock); 626 627 return rc; 628} 629 630/* MAC address mask including only I/G bit */ 631static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; 632 633#define IP4_ADDR_FULL_MASK ((__force __be32)~0) 634#define IP_PROTO_FULL_MASK 0xFF 635#define PORT_FULL_MASK ((__force __be16)~0) 636#define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 637 638static inline void ip6_fill_mask(__be32 *mask) 639{ 640 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0; 641} 642 643static int efx_ethtool_get_class_rule(struct efx_nic *efx, 644 struct ethtool_rx_flow_spec *rule, 645 u32 *rss_context) 646{ 647 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 648 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 649 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 650 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 651 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 652 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 653 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 654 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 655 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 656 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 657 struct efx_filter_spec spec; 658 int rc; 659 660 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, 661 rule->location, &spec); 662 if (rc) 663 return rc; 664 665 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP) 666 rule->ring_cookie = RX_CLS_FLOW_DISC; 667 else 668 rule->ring_cookie = spec.dmaq_id; 669 670 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 671 spec.ether_type == htons(ETH_P_IP) && 672 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 673 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 674 !(spec.match_flags & 675 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 676 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 677 EFX_FILTER_MATCH_IP_PROTO | 678 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 679 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 680 TCP_V4_FLOW : UDP_V4_FLOW); 681 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 682 ip_entry->ip4dst = spec.loc_host[0]; 683 ip_mask->ip4dst = IP4_ADDR_FULL_MASK; 684 } 685 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 686 ip_entry->ip4src = spec.rem_host[0]; 687 ip_mask->ip4src = IP4_ADDR_FULL_MASK; 688 } 689 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 690 ip_entry->pdst = spec.loc_port; 691 ip_mask->pdst = PORT_FULL_MASK; 692 } 693 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 694 ip_entry->psrc = spec.rem_port; 695 ip_mask->psrc = PORT_FULL_MASK; 696 } 697 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && 698 spec.ether_type == htons(ETH_P_IPV6) && 699 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && 700 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && 701 !(spec.match_flags & 702 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 703 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 704 EFX_FILTER_MATCH_IP_PROTO | 705 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { 706 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? 707 TCP_V6_FLOW : UDP_V6_FLOW); 708 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 709 memcpy(ip6_entry->ip6dst, spec.loc_host, 710 sizeof(ip6_entry->ip6dst)); 711 ip6_fill_mask(ip6_mask->ip6dst); 712 } 713 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 714 memcpy(ip6_entry->ip6src, spec.rem_host, 715 sizeof(ip6_entry->ip6src)); 716 ip6_fill_mask(ip6_mask->ip6src); 717 } 718 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { 719 ip6_entry->pdst = spec.loc_port; 720 ip6_mask->pdst = PORT_FULL_MASK; 721 } 722 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { 723 ip6_entry->psrc = spec.rem_port; 724 ip6_mask->psrc = PORT_FULL_MASK; 725 } 726 } else if (!(spec.match_flags & 727 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG | 728 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE | 729 EFX_FILTER_MATCH_OUTER_VID))) { 730 rule->flow_type = ETHER_FLOW; 731 if (spec.match_flags & 732 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) { 733 ether_addr_copy(mac_entry->h_dest, spec.loc_mac); 734 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC) 735 eth_broadcast_addr(mac_mask->h_dest); 736 else 737 ether_addr_copy(mac_mask->h_dest, 738 mac_addr_ig_mask); 739 } 740 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) { 741 ether_addr_copy(mac_entry->h_source, spec.rem_mac); 742 eth_broadcast_addr(mac_mask->h_source); 743 } 744 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) { 745 mac_entry->h_proto = spec.ether_type; 746 mac_mask->h_proto = ETHER_TYPE_FULL_MASK; 747 } 748 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 749 spec.ether_type == htons(ETH_P_IP) && 750 !(spec.match_flags & 751 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 752 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 753 EFX_FILTER_MATCH_IP_PROTO))) { 754 rule->flow_type = IPV4_USER_FLOW; 755 uip_entry->ip_ver = ETH_RX_NFC_IP4; 756 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 757 uip_mask->proto = IP_PROTO_FULL_MASK; 758 uip_entry->proto = spec.ip_proto; 759 } 760 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 761 uip_entry->ip4dst = spec.loc_host[0]; 762 uip_mask->ip4dst = IP4_ADDR_FULL_MASK; 763 } 764 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 765 uip_entry->ip4src = spec.rem_host[0]; 766 uip_mask->ip4src = IP4_ADDR_FULL_MASK; 767 } 768 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE && 769 spec.ether_type == htons(ETH_P_IPV6) && 770 !(spec.match_flags & 771 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | 772 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | 773 EFX_FILTER_MATCH_IP_PROTO))) { 774 rule->flow_type = IPV6_USER_FLOW; 775 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) { 776 uip6_mask->l4_proto = IP_PROTO_FULL_MASK; 777 uip6_entry->l4_proto = spec.ip_proto; 778 } 779 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { 780 memcpy(uip6_entry->ip6dst, spec.loc_host, 781 sizeof(uip6_entry->ip6dst)); 782 ip6_fill_mask(uip6_mask->ip6dst); 783 } 784 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { 785 memcpy(uip6_entry->ip6src, spec.rem_host, 786 sizeof(uip6_entry->ip6src)); 787 ip6_fill_mask(uip6_mask->ip6src); 788 } 789 } else { 790 /* The above should handle all filters that we insert */ 791 WARN_ON(1); 792 return -EINVAL; 793 } 794 795 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) { 796 rule->flow_type |= FLOW_EXT; 797 rule->h_ext.vlan_tci = spec.outer_vid; 798 rule->m_ext.vlan_tci = htons(0xfff); 799 } 800 801 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) { 802 rule->flow_type |= FLOW_RSS; 803 *rss_context = spec.rss_context; 804 } 805 806 return rc; 807} 808 809int efx_ethtool_get_rxnfc(struct net_device *net_dev, 810 struct ethtool_rxnfc *info, u32 *rule_locs) 811{ 812 struct efx_nic *efx = netdev_priv(net_dev); 813 u32 rss_context = 0; 814 s32 rc = 0; 815 816 switch (info->cmd) { 817 case ETHTOOL_GRXRINGS: 818 info->data = efx->n_rx_channels; 819 return 0; 820 821 case ETHTOOL_GRXFH: { 822 struct efx_rss_context *ctx = &efx->rss_context; 823 __u64 data; 824 825 mutex_lock(&efx->rss_lock); 826 if (info->flow_type & FLOW_RSS && info->rss_context) { 827 ctx = efx_find_rss_context_entry(efx, info->rss_context); 828 if (!ctx) { 829 rc = -ENOENT; 830 goto out_unlock; 831 } 832 } 833 834 data = 0; 835 if (!efx_rss_active(ctx)) /* No RSS */ 836 goto out_setdata_unlock; 837 838 switch (info->flow_type & ~FLOW_RSS) { 839 case UDP_V4_FLOW: 840 case UDP_V6_FLOW: 841 if (ctx->rx_hash_udp_4tuple) 842 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 | 843 RXH_IP_SRC | RXH_IP_DST); 844 else 845 data = RXH_IP_SRC | RXH_IP_DST; 846 break; 847 case TCP_V4_FLOW: 848 case TCP_V6_FLOW: 849 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 | 850 RXH_IP_SRC | RXH_IP_DST); 851 break; 852 case SCTP_V4_FLOW: 853 case SCTP_V6_FLOW: 854 case AH_ESP_V4_FLOW: 855 case AH_ESP_V6_FLOW: 856 case IPV4_FLOW: 857 case IPV6_FLOW: 858 data = RXH_IP_SRC | RXH_IP_DST; 859 break; 860 default: 861 break; 862 } 863out_setdata_unlock: 864 info->data = data; 865out_unlock: 866 mutex_unlock(&efx->rss_lock); 867 return rc; 868 } 869 870 case ETHTOOL_GRXCLSRLCNT: 871 info->data = efx_filter_get_rx_id_limit(efx); 872 if (info->data == 0) 873 return -EOPNOTSUPP; 874 info->data |= RX_CLS_LOC_SPECIAL; 875 info->rule_cnt = 876 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL); 877 return 0; 878 879 case ETHTOOL_GRXCLSRULE: 880 if (efx_filter_get_rx_id_limit(efx) == 0) 881 return -EOPNOTSUPP; 882 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context); 883 if (rc < 0) 884 return rc; 885 if (info->fs.flow_type & FLOW_RSS) 886 info->rss_context = rss_context; 887 return 0; 888 889 case ETHTOOL_GRXCLSRLALL: 890 info->data = efx_filter_get_rx_id_limit(efx); 891 if (info->data == 0) 892 return -EOPNOTSUPP; 893 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL, 894 rule_locs, info->rule_cnt); 895 if (rc < 0) 896 return rc; 897 info->rule_cnt = rc; 898 return 0; 899 900 default: 901 return -EOPNOTSUPP; 902 } 903} 904 905static inline bool ip6_mask_is_full(__be32 mask[4]) 906{ 907 return !~(mask[0] & mask[1] & mask[2] & mask[3]); 908} 909 910static inline bool ip6_mask_is_empty(__be32 mask[4]) 911{ 912 return !(mask[0] | mask[1] | mask[2] | mask[3]); 913} 914 915static int efx_ethtool_set_class_rule(struct efx_nic *efx, 916 struct ethtool_rx_flow_spec *rule, 917 u32 rss_context) 918{ 919 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; 920 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; 921 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; 922 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; 923 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; 924 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; 925 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; 926 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; 927 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS); 928 struct ethhdr *mac_entry = &rule->h_u.ether_spec; 929 struct ethhdr *mac_mask = &rule->m_u.ether_spec; 930 enum efx_filter_flags flags = 0; 931 struct efx_filter_spec spec; 932 int rc; 933 934 /* Check that user wants us to choose the location */ 935 if (rule->location != RX_CLS_LOC_ANY) 936 return -EINVAL; 937 938 /* Range-check ring_cookie */ 939 if (rule->ring_cookie >= efx->n_rx_channels && 940 rule->ring_cookie != RX_CLS_FLOW_DISC) 941 return -EINVAL; 942 943 /* Check for unsupported extensions */ 944 if ((rule->flow_type & FLOW_EXT) && 945 (rule->m_ext.vlan_etype || rule->m_ext.data[0] || 946 rule->m_ext.data[1])) 947 return -EINVAL; 948 949 if (efx->rx_scatter) 950 flags |= EFX_FILTER_FLAG_RX_SCATTER; 951 if (rule->flow_type & FLOW_RSS) 952 flags |= EFX_FILTER_FLAG_RX_RSS; 953 954 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags, 955 (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 956 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); 957 958 if (rule->flow_type & FLOW_RSS) 959 spec.rss_context = rss_context; 960 961 switch (flow_type) { 962 case TCP_V4_FLOW: 963 case UDP_V4_FLOW: 964 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 965 EFX_FILTER_MATCH_IP_PROTO); 966 spec.ether_type = htons(ETH_P_IP); 967 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP 968 : IPPROTO_UDP; 969 if (ip_mask->ip4dst) { 970 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) 971 return -EINVAL; 972 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 973 spec.loc_host[0] = ip_entry->ip4dst; 974 } 975 if (ip_mask->ip4src) { 976 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) 977 return -EINVAL; 978 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 979 spec.rem_host[0] = ip_entry->ip4src; 980 } 981 if (ip_mask->pdst) { 982 if (ip_mask->pdst != PORT_FULL_MASK) 983 return -EINVAL; 984 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 985 spec.loc_port = ip_entry->pdst; 986 } 987 if (ip_mask->psrc) { 988 if (ip_mask->psrc != PORT_FULL_MASK) 989 return -EINVAL; 990 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 991 spec.rem_port = ip_entry->psrc; 992 } 993 if (ip_mask->tos) 994 return -EINVAL; 995 break; 996 997 case TCP_V6_FLOW: 998 case UDP_V6_FLOW: 999 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | 1000 EFX_FILTER_MATCH_IP_PROTO); 1001 spec.ether_type = htons(ETH_P_IPV6); 1002 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP 1003 : IPPROTO_UDP; 1004 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { 1005 if (!ip6_mask_is_full(ip6_mask->ip6dst)) 1006 return -EINVAL; 1007 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1008 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host)); 1009 } 1010 if (!ip6_mask_is_empty(ip6_mask->ip6src)) { 1011 if (!ip6_mask_is_full(ip6_mask->ip6src)) 1012 return -EINVAL; 1013 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1014 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host)); 1015 } 1016 if (ip6_mask->pdst) { 1017 if (ip6_mask->pdst != PORT_FULL_MASK) 1018 return -EINVAL; 1019 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; 1020 spec.loc_port = ip6_entry->pdst; 1021 } 1022 if (ip6_mask->psrc) { 1023 if (ip6_mask->psrc != PORT_FULL_MASK) 1024 return -EINVAL; 1025 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; 1026 spec.rem_port = ip6_entry->psrc; 1027 } 1028 if (ip6_mask->tclass) 1029 return -EINVAL; 1030 break; 1031 1032 case IPV4_USER_FLOW: 1033 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver || 1034 uip_entry->ip_ver != ETH_RX_NFC_IP4) 1035 return -EINVAL; 1036 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1037 spec.ether_type = htons(ETH_P_IP); 1038 if (uip_mask->ip4dst) { 1039 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK) 1040 return -EINVAL; 1041 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1042 spec.loc_host[0] = uip_entry->ip4dst; 1043 } 1044 if (uip_mask->ip4src) { 1045 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK) 1046 return -EINVAL; 1047 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1048 spec.rem_host[0] = uip_entry->ip4src; 1049 } 1050 if (uip_mask->proto) { 1051 if (uip_mask->proto != IP_PROTO_FULL_MASK) 1052 return -EINVAL; 1053 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1054 spec.ip_proto = uip_entry->proto; 1055 } 1056 break; 1057 1058 case IPV6_USER_FLOW: 1059 if (uip6_mask->l4_4_bytes || uip6_mask->tclass) 1060 return -EINVAL; 1061 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE; 1062 spec.ether_type = htons(ETH_P_IPV6); 1063 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) { 1064 if (!ip6_mask_is_full(uip6_mask->ip6dst)) 1065 return -EINVAL; 1066 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; 1067 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host)); 1068 } 1069 if (!ip6_mask_is_empty(uip6_mask->ip6src)) { 1070 if (!ip6_mask_is_full(uip6_mask->ip6src)) 1071 return -EINVAL; 1072 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; 1073 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host)); 1074 } 1075 if (uip6_mask->l4_proto) { 1076 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK) 1077 return -EINVAL; 1078 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO; 1079 spec.ip_proto = uip6_entry->l4_proto; 1080 } 1081 break; 1082 1083 case ETHER_FLOW: 1084 if (!is_zero_ether_addr(mac_mask->h_dest)) { 1085 if (ether_addr_equal(mac_mask->h_dest, 1086 mac_addr_ig_mask)) 1087 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG; 1088 else if (is_broadcast_ether_addr(mac_mask->h_dest)) 1089 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC; 1090 else 1091 return -EINVAL; 1092 ether_addr_copy(spec.loc_mac, mac_entry->h_dest); 1093 } 1094 if (!is_zero_ether_addr(mac_mask->h_source)) { 1095 if (!is_broadcast_ether_addr(mac_mask->h_source)) 1096 return -EINVAL; 1097 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC; 1098 ether_addr_copy(spec.rem_mac, mac_entry->h_source); 1099 } 1100 if (mac_mask->h_proto) { 1101 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) 1102 return -EINVAL; 1103 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE; 1104 spec.ether_type = mac_entry->h_proto; 1105 } 1106 break; 1107 1108 default: 1109 return -EINVAL; 1110 } 1111 1112 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { 1113 if (rule->m_ext.vlan_tci != htons(0xfff)) 1114 return -EINVAL; 1115 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID; 1116 spec.outer_vid = rule->h_ext.vlan_tci; 1117 } 1118 1119 rc = efx_filter_insert_filter(efx, &spec, true); 1120 if (rc < 0) 1121 return rc; 1122 1123 rule->location = rc; 1124 return 0; 1125} 1126 1127int efx_ethtool_set_rxnfc(struct net_device *net_dev, 1128 struct ethtool_rxnfc *info) 1129{ 1130 struct efx_nic *efx = netdev_priv(net_dev); 1131 1132 if (efx_filter_get_rx_id_limit(efx) == 0) 1133 return -EOPNOTSUPP; 1134 1135 switch (info->cmd) { 1136 case ETHTOOL_SRXCLSRLINS: 1137 return efx_ethtool_set_class_rule(efx, &info->fs, 1138 info->rss_context); 1139 1140 case ETHTOOL_SRXCLSRLDEL: 1141 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, 1142 info->fs.location); 1143 1144 default: 1145 return -EOPNOTSUPP; 1146 } 1147} 1148 1149u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) 1150{ 1151 struct efx_nic *efx = netdev_priv(net_dev); 1152 1153 if (efx->n_rx_channels == 1) 1154 return 0; 1155 return ARRAY_SIZE(efx->rss_context.rx_indir_table); 1156} 1157 1158u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev) 1159{ 1160 struct efx_nic *efx = netdev_priv(net_dev); 1161 1162 return efx->type->rx_hash_key_size; 1163} 1164 1165int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key, 1166 u8 *hfunc) 1167{ 1168 struct efx_nic *efx = netdev_priv(net_dev); 1169 int rc; 1170 1171 rc = efx->type->rx_pull_rss_config(efx); 1172 if (rc) 1173 return rc; 1174 1175 if (hfunc) 1176 *hfunc = ETH_RSS_HASH_TOP; 1177 if (indir) 1178 memcpy(indir, efx->rss_context.rx_indir_table, 1179 sizeof(efx->rss_context.rx_indir_table)); 1180 if (key) 1181 memcpy(key, efx->rss_context.rx_hash_key, 1182 efx->type->rx_hash_key_size); 1183 return 0; 1184} 1185 1186int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir, 1187 const u8 *key, const u8 hfunc) 1188{ 1189 struct efx_nic *efx = netdev_priv(net_dev); 1190 1191 /* Hash function is Toeplitz, cannot be changed */ 1192 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 1193 return -EOPNOTSUPP; 1194 if (!indir && !key) 1195 return 0; 1196 1197 if (!key) 1198 key = efx->rss_context.rx_hash_key; 1199 if (!indir) 1200 indir = efx->rss_context.rx_indir_table; 1201 1202 return efx->type->rx_push_rss_config(efx, true, indir, key); 1203} 1204 1205int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir, 1206 u8 *key, u8 *hfunc, u32 rss_context) 1207{ 1208 struct efx_nic *efx = netdev_priv(net_dev); 1209 struct efx_rss_context *ctx; 1210 int rc = 0; 1211 1212 if (!efx->type->rx_pull_rss_context_config) 1213 return -EOPNOTSUPP; 1214 1215 mutex_lock(&efx->rss_lock); 1216 ctx = efx_find_rss_context_entry(efx, rss_context); 1217 if (!ctx) { 1218 rc = -ENOENT; 1219 goto out_unlock; 1220 } 1221 rc = efx->type->rx_pull_rss_context_config(efx, ctx); 1222 if (rc) 1223 goto out_unlock; 1224 1225 if (hfunc) 1226 *hfunc = ETH_RSS_HASH_TOP; 1227 if (indir) 1228 memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table)); 1229 if (key) 1230 memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size); 1231out_unlock: 1232 mutex_unlock(&efx->rss_lock); 1233 return rc; 1234} 1235 1236int efx_ethtool_set_rxfh_context(struct net_device *net_dev, 1237 const u32 *indir, const u8 *key, 1238 const u8 hfunc, u32 *rss_context, 1239 bool delete) 1240{ 1241 struct efx_nic *efx = netdev_priv(net_dev); 1242 struct efx_rss_context *ctx; 1243 bool allocated = false; 1244 int rc; 1245 1246 if (!efx->type->rx_push_rss_context_config) 1247 return -EOPNOTSUPP; 1248 /* Hash function is Toeplitz, cannot be changed */ 1249 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 1250 return -EOPNOTSUPP; 1251 1252 mutex_lock(&efx->rss_lock); 1253 1254 if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { 1255 if (delete) { 1256 /* alloc + delete == Nothing to do */ 1257 rc = -EINVAL; 1258 goto out_unlock; 1259 } 1260 ctx = efx_alloc_rss_context_entry(efx); 1261 if (!ctx) { 1262 rc = -ENOMEM; 1263 goto out_unlock; 1264 } 1265 ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID; 1266 /* Initialise indir table and key to defaults */ 1267 efx_set_default_rx_indir_table(efx, ctx); 1268 netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key)); 1269 allocated = true; 1270 } else { 1271 ctx = efx_find_rss_context_entry(efx, *rss_context); 1272 if (!ctx) { 1273 rc = -ENOENT; 1274 goto out_unlock; 1275 } 1276 } 1277 1278 if (delete) { 1279 /* delete this context */ 1280 rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL); 1281 if (!rc) 1282 efx_free_rss_context_entry(ctx); 1283 goto out_unlock; 1284 } 1285 1286 if (!key) 1287 key = ctx->rx_hash_key; 1288 if (!indir) 1289 indir = ctx->rx_indir_table; 1290 1291 rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key); 1292 if (rc && allocated) 1293 efx_free_rss_context_entry(ctx); 1294 else 1295 *rss_context = ctx->user_id; 1296out_unlock: 1297 mutex_unlock(&efx->rss_lock); 1298 return rc; 1299} 1300 1301int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) 1302{ 1303 struct efx_nic *efx = netdev_priv(net_dev); 1304 int rc; 1305 1306 rc = efx->type->map_reset_flags(flags); 1307 if (rc < 0) 1308 return rc; 1309 1310 return efx_reset(efx, rc); 1311} 1312 1313int efx_ethtool_get_module_eeprom(struct net_device *net_dev, 1314 struct ethtool_eeprom *ee, 1315 u8 *data) 1316{ 1317 struct efx_nic *efx = netdev_priv(net_dev); 1318 int ret; 1319 1320 mutex_lock(&efx->mac_lock); 1321 ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data); 1322 mutex_unlock(&efx->mac_lock); 1323 1324 return ret; 1325} 1326 1327int efx_ethtool_get_module_info(struct net_device *net_dev, 1328 struct ethtool_modinfo *modinfo) 1329{ 1330 struct efx_nic *efx = netdev_priv(net_dev); 1331 int ret; 1332 1333 mutex_lock(&efx->mac_lock); 1334 ret = efx_mcdi_phy_get_module_info(efx, modinfo); 1335 mutex_unlock(&efx->mac_lock); 1336 1337 return ret; 1338} 1339