1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB 2 /* 3 * Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved. 4 */ 5 6 #include <linux/ethtool.h> 7 #include <linux/pci.h> 8 9 #include "ena_netdev.h" 10 11 struct ena_stats { 12 char name[ETH_GSTRING_LEN]; 13 int stat_offset; 14 }; 15 16 #define ENA_STAT_ENA_COM_ENTRY(stat) { \ 17 .name = #stat, \ 18 .stat_offset = offsetof(struct ena_com_stats_admin, stat) / sizeof(u64) \ 19 } 20 21 #define ENA_STAT_ENTRY(stat, stat_type) { \ 22 .name = #stat, \ 23 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) / sizeof(u64) \ 24 } 25 26 #define ENA_STAT_HW_ENTRY(stat, stat_type) { \ 27 .name = #stat, \ 28 .stat_offset = offsetof(struct ena_admin_##stat_type, stat) / sizeof(u64) \ 29 } 30 31 #define ENA_STAT_RX_ENTRY(stat) \ 32 ENA_STAT_ENTRY(stat, rx) 33 34 #define ENA_STAT_TX_ENTRY(stat) \ 35 ENA_STAT_ENTRY(stat, tx) 36 37 #define ENA_STAT_GLOBAL_ENTRY(stat) \ 38 ENA_STAT_ENTRY(stat, dev) 39 40 #define ENA_STAT_ENI_ENTRY(stat) \ 41 ENA_STAT_HW_ENTRY(stat, eni_stats) 42 43 static const struct ena_stats ena_stats_global_strings[] = { 44 ENA_STAT_GLOBAL_ENTRY(tx_timeout), 45 ENA_STAT_GLOBAL_ENTRY(suspend), 46 ENA_STAT_GLOBAL_ENTRY(resume), 47 ENA_STAT_GLOBAL_ENTRY(wd_expired), 48 ENA_STAT_GLOBAL_ENTRY(interface_up), 49 ENA_STAT_GLOBAL_ENTRY(interface_down), 50 ENA_STAT_GLOBAL_ENTRY(admin_q_pause), 51 }; 52 53 static const struct ena_stats ena_stats_eni_strings[] = { 54 ENA_STAT_ENI_ENTRY(bw_in_allowance_exceeded), 55 ENA_STAT_ENI_ENTRY(bw_out_allowance_exceeded), 56 ENA_STAT_ENI_ENTRY(pps_allowance_exceeded), 57 ENA_STAT_ENI_ENTRY(conntrack_allowance_exceeded), 58 ENA_STAT_ENI_ENTRY(linklocal_allowance_exceeded), 59 }; 60 61 static const struct ena_stats ena_stats_tx_strings[] = { 62 ENA_STAT_TX_ENTRY(cnt), 63 ENA_STAT_TX_ENTRY(bytes), 64 ENA_STAT_TX_ENTRY(queue_stop), 65 ENA_STAT_TX_ENTRY(queue_wakeup), 66 ENA_STAT_TX_ENTRY(dma_mapping_err), 67 ENA_STAT_TX_ENTRY(linearize), 68 ENA_STAT_TX_ENTRY(linearize_failed), 69 ENA_STAT_TX_ENTRY(napi_comp), 70 ENA_STAT_TX_ENTRY(tx_poll), 71 ENA_STAT_TX_ENTRY(doorbells), 72 ENA_STAT_TX_ENTRY(prepare_ctx_err), 73 ENA_STAT_TX_ENTRY(bad_req_id), 74 ENA_STAT_TX_ENTRY(llq_buffer_copy), 75 ENA_STAT_TX_ENTRY(missed_tx), 76 ENA_STAT_TX_ENTRY(unmask_interrupt), 77 }; 78 79 static const struct ena_stats ena_stats_rx_strings[] = { 80 ENA_STAT_RX_ENTRY(cnt), 81 ENA_STAT_RX_ENTRY(bytes), 82 ENA_STAT_RX_ENTRY(rx_copybreak_pkt), 83 ENA_STAT_RX_ENTRY(csum_good), 84 ENA_STAT_RX_ENTRY(refil_partial), 85 ENA_STAT_RX_ENTRY(csum_bad), 86 ENA_STAT_RX_ENTRY(page_alloc_fail), 87 ENA_STAT_RX_ENTRY(skb_alloc_fail), 88 ENA_STAT_RX_ENTRY(dma_mapping_err), 89 ENA_STAT_RX_ENTRY(bad_desc_num), 90 ENA_STAT_RX_ENTRY(bad_req_id), 91 ENA_STAT_RX_ENTRY(empty_rx_ring), 92 ENA_STAT_RX_ENTRY(csum_unchecked), 93 ENA_STAT_RX_ENTRY(xdp_aborted), 94 ENA_STAT_RX_ENTRY(xdp_drop), 95 ENA_STAT_RX_ENTRY(xdp_pass), 96 ENA_STAT_RX_ENTRY(xdp_tx), 97 ENA_STAT_RX_ENTRY(xdp_invalid), 98 ENA_STAT_RX_ENTRY(xdp_redirect), 99 }; 100 101 static const struct ena_stats ena_stats_ena_com_strings[] = { 102 ENA_STAT_ENA_COM_ENTRY(aborted_cmd), 103 ENA_STAT_ENA_COM_ENTRY(submitted_cmd), 104 ENA_STAT_ENA_COM_ENTRY(completed_cmd), 105 ENA_STAT_ENA_COM_ENTRY(out_of_space), 106 ENA_STAT_ENA_COM_ENTRY(no_completion), 107 }; 108 109 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings) 110 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings) 111 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings) 112 #define ENA_STATS_ARRAY_ENA_COM ARRAY_SIZE(ena_stats_ena_com_strings) 113 #define ENA_STATS_ARRAY_ENI(adapter) ARRAY_SIZE(ena_stats_eni_strings) 114 115 static void ena_safe_update_stat(u64 *src, u64 *dst, 116 struct u64_stats_sync *syncp) 117 { 118 unsigned int start; 119 120 do { 121 start = u64_stats_fetch_begin_irq(syncp); 122 *(dst) = *src; 123 } while (u64_stats_fetch_retry_irq(syncp, start)); 124 } 125 126 static void ena_queue_stats(struct ena_adapter *adapter, u64 **data) 127 { 128 const struct ena_stats *ena_stats; 129 struct ena_ring *ring; 130 131 u64 *ptr; 132 int i, j; 133 134 for (i = 0; i < adapter->num_io_queues + adapter->xdp_num_queues; i++) { 135 /* Tx stats */ 136 ring = &adapter->tx_ring[i]; 137 138 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) { 139 ena_stats = &ena_stats_tx_strings[j]; 140 141 ptr = (u64 *)&ring->tx_stats + ena_stats->stat_offset; 142 143 ena_safe_update_stat(ptr, (*data)++, &ring->syncp); 144 } 145 /* XDP TX queues don't have a RX queue counterpart */ 146 if (!ENA_IS_XDP_INDEX(adapter, i)) { 147 /* Rx stats */ 148 ring = &adapter->rx_ring[i]; 149 150 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) { 151 ena_stats = &ena_stats_rx_strings[j]; 152 153 ptr = (u64 *)&ring->rx_stats + 154 ena_stats->stat_offset; 155 156 ena_safe_update_stat(ptr, (*data)++, &ring->syncp); 157 } 158 } 159 } 160 } 161 162 static void ena_dev_admin_queue_stats(struct ena_adapter *adapter, u64 **data) 163 { 164 const struct ena_stats *ena_stats; 165 u64 *ptr; 166 int i; 167 168 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) { 169 ena_stats = &ena_stats_ena_com_strings[i]; 170 171 ptr = (u64 *)&adapter->ena_dev->admin_queue.stats + 172 ena_stats->stat_offset; 173 174 *(*data)++ = *ptr; 175 } 176 } 177 178 static void ena_get_stats(struct ena_adapter *adapter, 179 u64 *data, 180 bool eni_stats_needed) 181 { 182 const struct ena_stats *ena_stats; 183 u64 *ptr; 184 int i; 185 186 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) { 187 ena_stats = &ena_stats_global_strings[i]; 188 189 ptr = (u64 *)&adapter->dev_stats + ena_stats->stat_offset; 190 191 ena_safe_update_stat(ptr, data++, &adapter->syncp); 192 } 193 194 if (eni_stats_needed) { 195 ena_update_hw_stats(adapter); 196 for (i = 0; i < ENA_STATS_ARRAY_ENI(adapter); i++) { 197 ena_stats = &ena_stats_eni_strings[i]; 198 199 ptr = (u64 *)&adapter->eni_stats + 200 ena_stats->stat_offset; 201 202 ena_safe_update_stat(ptr, data++, &adapter->syncp); 203 } 204 } 205 206 ena_queue_stats(adapter, &data); 207 ena_dev_admin_queue_stats(adapter, &data); 208 } 209 210 static void ena_get_ethtool_stats(struct net_device *netdev, 211 struct ethtool_stats *stats, 212 u64 *data) 213 { 214 struct ena_adapter *adapter = netdev_priv(netdev); 215 struct ena_com_dev *dev = adapter->ena_dev; 216 217 ena_get_stats(adapter, data, ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS)); 218 } 219 220 static int ena_get_sw_stats_count(struct ena_adapter *adapter) 221 { 222 return adapter->num_io_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX) 223 + adapter->xdp_num_queues * ENA_STATS_ARRAY_TX 224 + ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM; 225 } 226 227 static int ena_get_hw_stats_count(struct ena_adapter *adapter) 228 { 229 bool supported = ena_com_get_cap(adapter->ena_dev, ENA_ADMIN_ENI_STATS); 230 231 return ENA_STATS_ARRAY_ENI(adapter) * supported; 232 } 233 234 int ena_get_sset_count(struct net_device *netdev, int sset) 235 { 236 struct ena_adapter *adapter = netdev_priv(netdev); 237 238 switch (sset) { 239 case ETH_SS_STATS: 240 return ena_get_sw_stats_count(adapter) + 241 ena_get_hw_stats_count(adapter); 242 } 243 244 return -EOPNOTSUPP; 245 } 246 247 static void ena_queue_strings(struct ena_adapter *adapter, u8 **data) 248 { 249 const struct ena_stats *ena_stats; 250 bool is_xdp; 251 int i, j; 252 253 for (i = 0; i < adapter->num_io_queues + adapter->xdp_num_queues; i++) { 254 is_xdp = ENA_IS_XDP_INDEX(adapter, i); 255 /* Tx stats */ 256 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) { 257 ena_stats = &ena_stats_tx_strings[j]; 258 259 ethtool_sprintf(data, 260 "queue_%u_%s_%s", i, 261 is_xdp ? "xdp_tx" : "tx", 262 ena_stats->name); 263 } 264 265 if (!is_xdp) { 266 /* RX stats, in XDP there isn't a RX queue 267 * counterpart 268 */ 269 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) { 270 ena_stats = &ena_stats_rx_strings[j]; 271 272 ethtool_sprintf(data, 273 "queue_%u_rx_%s", i, 274 ena_stats->name); 275 } 276 } 277 } 278 } 279 280 static void ena_com_dev_strings(u8 **data) 281 { 282 const struct ena_stats *ena_stats; 283 int i; 284 285 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) { 286 ena_stats = &ena_stats_ena_com_strings[i]; 287 288 ethtool_sprintf(data, 289 "ena_admin_q_%s", ena_stats->name); 290 } 291 } 292 293 static void ena_get_strings(struct ena_adapter *adapter, 294 u8 *data, 295 bool eni_stats_needed) 296 { 297 const struct ena_stats *ena_stats; 298 int i; 299 300 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) { 301 ena_stats = &ena_stats_global_strings[i]; 302 ethtool_sprintf(&data, ena_stats->name); 303 } 304 305 if (eni_stats_needed) { 306 for (i = 0; i < ENA_STATS_ARRAY_ENI(adapter); i++) { 307 ena_stats = &ena_stats_eni_strings[i]; 308 ethtool_sprintf(&data, ena_stats->name); 309 } 310 } 311 312 ena_queue_strings(adapter, &data); 313 ena_com_dev_strings(&data); 314 } 315 316 static void ena_get_ethtool_strings(struct net_device *netdev, 317 u32 sset, 318 u8 *data) 319 { 320 struct ena_adapter *adapter = netdev_priv(netdev); 321 struct ena_com_dev *dev = adapter->ena_dev; 322 323 switch (sset) { 324 case ETH_SS_STATS: 325 ena_get_strings(adapter, data, ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS)); 326 break; 327 } 328 } 329 330 static int ena_get_link_ksettings(struct net_device *netdev, 331 struct ethtool_link_ksettings *link_ksettings) 332 { 333 struct ena_adapter *adapter = netdev_priv(netdev); 334 struct ena_com_dev *ena_dev = adapter->ena_dev; 335 struct ena_admin_get_feature_link_desc *link; 336 struct ena_admin_get_feat_resp feat_resp; 337 int rc; 338 339 rc = ena_com_get_link_params(ena_dev, &feat_resp); 340 if (rc) 341 return rc; 342 343 link = &feat_resp.u.link; 344 link_ksettings->base.speed = link->speed; 345 346 if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) { 347 ethtool_link_ksettings_add_link_mode(link_ksettings, 348 supported, Autoneg); 349 ethtool_link_ksettings_add_link_mode(link_ksettings, 350 supported, Autoneg); 351 } 352 353 link_ksettings->base.autoneg = 354 (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) ? 355 AUTONEG_ENABLE : AUTONEG_DISABLE; 356 357 link_ksettings->base.duplex = DUPLEX_FULL; 358 359 return 0; 360 } 361 362 static int ena_get_coalesce(struct net_device *net_dev, 363 struct ethtool_coalesce *coalesce, 364 struct kernel_ethtool_coalesce *kernel_coal, 365 struct netlink_ext_ack *extack) 366 { 367 struct ena_adapter *adapter = netdev_priv(net_dev); 368 struct ena_com_dev *ena_dev = adapter->ena_dev; 369 370 if (!ena_com_interrupt_moderation_supported(ena_dev)) 371 return -EOPNOTSUPP; 372 373 coalesce->tx_coalesce_usecs = 374 ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) * 375 ena_dev->intr_delay_resolution; 376 377 coalesce->rx_coalesce_usecs = 378 ena_com_get_nonadaptive_moderation_interval_rx(ena_dev) 379 * ena_dev->intr_delay_resolution; 380 381 coalesce->use_adaptive_rx_coalesce = 382 ena_com_get_adaptive_moderation_enabled(ena_dev); 383 384 return 0; 385 } 386 387 static void ena_update_tx_rings_nonadaptive_intr_moderation(struct ena_adapter *adapter) 388 { 389 unsigned int val; 390 int i; 391 392 val = ena_com_get_nonadaptive_moderation_interval_tx(adapter->ena_dev); 393 394 for (i = 0; i < adapter->num_io_queues; i++) 395 adapter->tx_ring[i].smoothed_interval = val; 396 } 397 398 static void ena_update_rx_rings_nonadaptive_intr_moderation(struct ena_adapter *adapter) 399 { 400 unsigned int val; 401 int i; 402 403 val = ena_com_get_nonadaptive_moderation_interval_rx(adapter->ena_dev); 404 405 for (i = 0; i < adapter->num_io_queues; i++) 406 adapter->rx_ring[i].smoothed_interval = val; 407 } 408 409 static int ena_set_coalesce(struct net_device *net_dev, 410 struct ethtool_coalesce *coalesce, 411 struct kernel_ethtool_coalesce *kernel_coal, 412 struct netlink_ext_ack *extack) 413 { 414 struct ena_adapter *adapter = netdev_priv(net_dev); 415 struct ena_com_dev *ena_dev = adapter->ena_dev; 416 int rc; 417 418 if (!ena_com_interrupt_moderation_supported(ena_dev)) 419 return -EOPNOTSUPP; 420 421 rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev, 422 coalesce->tx_coalesce_usecs); 423 if (rc) 424 return rc; 425 426 ena_update_tx_rings_nonadaptive_intr_moderation(adapter); 427 428 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev, 429 coalesce->rx_coalesce_usecs); 430 if (rc) 431 return rc; 432 433 ena_update_rx_rings_nonadaptive_intr_moderation(adapter); 434 435 if (coalesce->use_adaptive_rx_coalesce && 436 !ena_com_get_adaptive_moderation_enabled(ena_dev)) 437 ena_com_enable_adaptive_moderation(ena_dev); 438 439 if (!coalesce->use_adaptive_rx_coalesce && 440 ena_com_get_adaptive_moderation_enabled(ena_dev)) 441 ena_com_disable_adaptive_moderation(ena_dev); 442 443 return 0; 444 } 445 446 static u32 ena_get_msglevel(struct net_device *netdev) 447 { 448 struct ena_adapter *adapter = netdev_priv(netdev); 449 450 return adapter->msg_enable; 451 } 452 453 static void ena_set_msglevel(struct net_device *netdev, u32 value) 454 { 455 struct ena_adapter *adapter = netdev_priv(netdev); 456 457 adapter->msg_enable = value; 458 } 459 460 static void ena_get_drvinfo(struct net_device *dev, 461 struct ethtool_drvinfo *info) 462 { 463 struct ena_adapter *adapter = netdev_priv(dev); 464 465 strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver)); 466 strscpy(info->bus_info, pci_name(adapter->pdev), 467 sizeof(info->bus_info)); 468 } 469 470 static void ena_get_ringparam(struct net_device *netdev, 471 struct ethtool_ringparam *ring, 472 struct kernel_ethtool_ringparam *kernel_ring, 473 struct netlink_ext_ack *extack) 474 { 475 struct ena_adapter *adapter = netdev_priv(netdev); 476 477 ring->tx_max_pending = adapter->max_tx_ring_size; 478 ring->rx_max_pending = adapter->max_rx_ring_size; 479 ring->tx_pending = adapter->tx_ring[0].ring_size; 480 ring->rx_pending = adapter->rx_ring[0].ring_size; 481 } 482 483 static int ena_set_ringparam(struct net_device *netdev, 484 struct ethtool_ringparam *ring, 485 struct kernel_ethtool_ringparam *kernel_ring, 486 struct netlink_ext_ack *extack) 487 { 488 struct ena_adapter *adapter = netdev_priv(netdev); 489 u32 new_tx_size, new_rx_size; 490 491 new_tx_size = ring->tx_pending < ENA_MIN_RING_SIZE ? 492 ENA_MIN_RING_SIZE : ring->tx_pending; 493 new_tx_size = rounddown_pow_of_two(new_tx_size); 494 495 new_rx_size = ring->rx_pending < ENA_MIN_RING_SIZE ? 496 ENA_MIN_RING_SIZE : ring->rx_pending; 497 new_rx_size = rounddown_pow_of_two(new_rx_size); 498 499 if (new_tx_size == adapter->requested_tx_ring_size && 500 new_rx_size == adapter->requested_rx_ring_size) 501 return 0; 502 503 return ena_update_queue_sizes(adapter, new_tx_size, new_rx_size); 504 } 505 506 static u32 ena_flow_hash_to_flow_type(u16 hash_fields) 507 { 508 u32 data = 0; 509 510 if (hash_fields & ENA_ADMIN_RSS_L2_DA) 511 data |= RXH_L2DA; 512 513 if (hash_fields & ENA_ADMIN_RSS_L3_DA) 514 data |= RXH_IP_DST; 515 516 if (hash_fields & ENA_ADMIN_RSS_L3_SA) 517 data |= RXH_IP_SRC; 518 519 if (hash_fields & ENA_ADMIN_RSS_L4_DP) 520 data |= RXH_L4_B_2_3; 521 522 if (hash_fields & ENA_ADMIN_RSS_L4_SP) 523 data |= RXH_L4_B_0_1; 524 525 return data; 526 } 527 528 static u16 ena_flow_data_to_flow_hash(u32 hash_fields) 529 { 530 u16 data = 0; 531 532 if (hash_fields & RXH_L2DA) 533 data |= ENA_ADMIN_RSS_L2_DA; 534 535 if (hash_fields & RXH_IP_DST) 536 data |= ENA_ADMIN_RSS_L3_DA; 537 538 if (hash_fields & RXH_IP_SRC) 539 data |= ENA_ADMIN_RSS_L3_SA; 540 541 if (hash_fields & RXH_L4_B_2_3) 542 data |= ENA_ADMIN_RSS_L4_DP; 543 544 if (hash_fields & RXH_L4_B_0_1) 545 data |= ENA_ADMIN_RSS_L4_SP; 546 547 return data; 548 } 549 550 static int ena_get_rss_hash(struct ena_com_dev *ena_dev, 551 struct ethtool_rxnfc *cmd) 552 { 553 enum ena_admin_flow_hash_proto proto; 554 u16 hash_fields; 555 int rc; 556 557 cmd->data = 0; 558 559 switch (cmd->flow_type) { 560 case TCP_V4_FLOW: 561 proto = ENA_ADMIN_RSS_TCP4; 562 break; 563 case UDP_V4_FLOW: 564 proto = ENA_ADMIN_RSS_UDP4; 565 break; 566 case TCP_V6_FLOW: 567 proto = ENA_ADMIN_RSS_TCP6; 568 break; 569 case UDP_V6_FLOW: 570 proto = ENA_ADMIN_RSS_UDP6; 571 break; 572 case IPV4_FLOW: 573 proto = ENA_ADMIN_RSS_IP4; 574 break; 575 case IPV6_FLOW: 576 proto = ENA_ADMIN_RSS_IP6; 577 break; 578 case ETHER_FLOW: 579 proto = ENA_ADMIN_RSS_NOT_IP; 580 break; 581 case AH_V4_FLOW: 582 case ESP_V4_FLOW: 583 case AH_V6_FLOW: 584 case ESP_V6_FLOW: 585 case SCTP_V4_FLOW: 586 case AH_ESP_V4_FLOW: 587 return -EOPNOTSUPP; 588 default: 589 return -EINVAL; 590 } 591 592 rc = ena_com_get_hash_ctrl(ena_dev, proto, &hash_fields); 593 if (rc) 594 return rc; 595 596 cmd->data = ena_flow_hash_to_flow_type(hash_fields); 597 598 return 0; 599 } 600 601 static int ena_set_rss_hash(struct ena_com_dev *ena_dev, 602 struct ethtool_rxnfc *cmd) 603 { 604 enum ena_admin_flow_hash_proto proto; 605 u16 hash_fields; 606 607 switch (cmd->flow_type) { 608 case TCP_V4_FLOW: 609 proto = ENA_ADMIN_RSS_TCP4; 610 break; 611 case UDP_V4_FLOW: 612 proto = ENA_ADMIN_RSS_UDP4; 613 break; 614 case TCP_V6_FLOW: 615 proto = ENA_ADMIN_RSS_TCP6; 616 break; 617 case UDP_V6_FLOW: 618 proto = ENA_ADMIN_RSS_UDP6; 619 break; 620 case IPV4_FLOW: 621 proto = ENA_ADMIN_RSS_IP4; 622 break; 623 case IPV6_FLOW: 624 proto = ENA_ADMIN_RSS_IP6; 625 break; 626 case ETHER_FLOW: 627 proto = ENA_ADMIN_RSS_NOT_IP; 628 break; 629 case AH_V4_FLOW: 630 case ESP_V4_FLOW: 631 case AH_V6_FLOW: 632 case ESP_V6_FLOW: 633 case SCTP_V4_FLOW: 634 case AH_ESP_V4_FLOW: 635 return -EOPNOTSUPP; 636 default: 637 return -EINVAL; 638 } 639 640 hash_fields = ena_flow_data_to_flow_hash(cmd->data); 641 642 return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields); 643 } 644 645 static int ena_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info) 646 { 647 struct ena_adapter *adapter = netdev_priv(netdev); 648 int rc = 0; 649 650 switch (info->cmd) { 651 case ETHTOOL_SRXFH: 652 rc = ena_set_rss_hash(adapter->ena_dev, info); 653 break; 654 case ETHTOOL_SRXCLSRLDEL: 655 case ETHTOOL_SRXCLSRLINS: 656 default: 657 netif_err(adapter, drv, netdev, 658 "Command parameter %d is not supported\n", info->cmd); 659 rc = -EOPNOTSUPP; 660 } 661 662 return rc; 663 } 664 665 static int ena_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info, 666 u32 *rules) 667 { 668 struct ena_adapter *adapter = netdev_priv(netdev); 669 int rc = 0; 670 671 switch (info->cmd) { 672 case ETHTOOL_GRXRINGS: 673 info->data = adapter->num_io_queues; 674 rc = 0; 675 break; 676 case ETHTOOL_GRXFH: 677 rc = ena_get_rss_hash(adapter->ena_dev, info); 678 break; 679 case ETHTOOL_GRXCLSRLCNT: 680 case ETHTOOL_GRXCLSRULE: 681 case ETHTOOL_GRXCLSRLALL: 682 default: 683 netif_err(adapter, drv, netdev, 684 "Command parameter %d is not supported\n", info->cmd); 685 rc = -EOPNOTSUPP; 686 } 687 688 return rc; 689 } 690 691 static u32 ena_get_rxfh_indir_size(struct net_device *netdev) 692 { 693 return ENA_RX_RSS_TABLE_SIZE; 694 } 695 696 static u32 ena_get_rxfh_key_size(struct net_device *netdev) 697 { 698 return ENA_HASH_KEY_SIZE; 699 } 700 701 static int ena_indirection_table_set(struct ena_adapter *adapter, 702 const u32 *indir) 703 { 704 struct ena_com_dev *ena_dev = adapter->ena_dev; 705 int i, rc; 706 707 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) { 708 rc = ena_com_indirect_table_fill_entry(ena_dev, 709 i, 710 ENA_IO_RXQ_IDX(indir[i])); 711 if (unlikely(rc)) { 712 netif_err(adapter, drv, adapter->netdev, 713 "Cannot fill indirect table (index is too large)\n"); 714 return rc; 715 } 716 } 717 718 rc = ena_com_indirect_table_set(ena_dev); 719 if (rc) { 720 netif_err(adapter, drv, adapter->netdev, 721 "Cannot set indirect table\n"); 722 return rc == -EPERM ? -EOPNOTSUPP : rc; 723 } 724 return rc; 725 } 726 727 static int ena_indirection_table_get(struct ena_adapter *adapter, u32 *indir) 728 { 729 struct ena_com_dev *ena_dev = adapter->ena_dev; 730 int i, rc; 731 732 if (!indir) 733 return 0; 734 735 rc = ena_com_indirect_table_get(ena_dev, indir); 736 if (rc) 737 return rc; 738 739 /* Our internal representation of the indices is: even indices 740 * for Tx and uneven indices for Rx. We need to convert the Rx 741 * indices to be consecutive 742 */ 743 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) 744 indir[i] = ENA_IO_RXQ_IDX_TO_COMBINED_IDX(indir[i]); 745 746 return rc; 747 } 748 749 static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 750 u8 *hfunc) 751 { 752 struct ena_adapter *adapter = netdev_priv(netdev); 753 enum ena_admin_hash_functions ena_func; 754 u8 func; 755 int rc; 756 757 rc = ena_indirection_table_get(adapter, indir); 758 if (rc) 759 return rc; 760 761 /* We call this function in order to check if the device 762 * supports getting/setting the hash function. 763 */ 764 rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func); 765 if (rc) { 766 if (rc == -EOPNOTSUPP) 767 rc = 0; 768 769 return rc; 770 } 771 772 rc = ena_com_get_hash_key(adapter->ena_dev, key); 773 if (rc) 774 return rc; 775 776 switch (ena_func) { 777 case ENA_ADMIN_TOEPLITZ: 778 func = ETH_RSS_HASH_TOP; 779 break; 780 case ENA_ADMIN_CRC32: 781 func = ETH_RSS_HASH_CRC32; 782 break; 783 default: 784 netif_err(adapter, drv, netdev, 785 "Command parameter is not supported\n"); 786 return -EOPNOTSUPP; 787 } 788 789 if (hfunc) 790 *hfunc = func; 791 792 return 0; 793 } 794 795 static int ena_set_rxfh(struct net_device *netdev, const u32 *indir, 796 const u8 *key, const u8 hfunc) 797 { 798 struct ena_adapter *adapter = netdev_priv(netdev); 799 struct ena_com_dev *ena_dev = adapter->ena_dev; 800 enum ena_admin_hash_functions func = 0; 801 int rc; 802 803 if (indir) { 804 rc = ena_indirection_table_set(adapter, indir); 805 if (rc) 806 return rc; 807 } 808 809 switch (hfunc) { 810 case ETH_RSS_HASH_NO_CHANGE: 811 func = ena_com_get_current_hash_function(ena_dev); 812 break; 813 case ETH_RSS_HASH_TOP: 814 func = ENA_ADMIN_TOEPLITZ; 815 break; 816 case ETH_RSS_HASH_CRC32: 817 func = ENA_ADMIN_CRC32; 818 break; 819 default: 820 netif_err(adapter, drv, netdev, "Unsupported hfunc %d\n", 821 hfunc); 822 return -EOPNOTSUPP; 823 } 824 825 if (key || func) { 826 rc = ena_com_fill_hash_function(ena_dev, func, key, 827 ENA_HASH_KEY_SIZE, 828 0xFFFFFFFF); 829 if (unlikely(rc)) { 830 netif_err(adapter, drv, netdev, "Cannot fill key\n"); 831 return rc == -EPERM ? -EOPNOTSUPP : rc; 832 } 833 } 834 835 return 0; 836 } 837 838 static void ena_get_channels(struct net_device *netdev, 839 struct ethtool_channels *channels) 840 { 841 struct ena_adapter *adapter = netdev_priv(netdev); 842 843 channels->max_combined = adapter->max_num_io_queues; 844 channels->combined_count = adapter->num_io_queues; 845 } 846 847 static int ena_set_channels(struct net_device *netdev, 848 struct ethtool_channels *channels) 849 { 850 struct ena_adapter *adapter = netdev_priv(netdev); 851 u32 count = channels->combined_count; 852 /* The check for max value is already done in ethtool */ 853 if (count < ENA_MIN_NUM_IO_QUEUES || 854 (ena_xdp_present(adapter) && 855 !ena_xdp_legal_queue_count(adapter, count))) 856 return -EINVAL; 857 858 return ena_update_queue_count(adapter, count); 859 } 860 861 static int ena_get_tunable(struct net_device *netdev, 862 const struct ethtool_tunable *tuna, void *data) 863 { 864 struct ena_adapter *adapter = netdev_priv(netdev); 865 int ret = 0; 866 867 switch (tuna->id) { 868 case ETHTOOL_RX_COPYBREAK: 869 *(u32 *)data = adapter->rx_copybreak; 870 break; 871 default: 872 ret = -EINVAL; 873 break; 874 } 875 876 return ret; 877 } 878 879 static int ena_set_tunable(struct net_device *netdev, 880 const struct ethtool_tunable *tuna, 881 const void *data) 882 { 883 struct ena_adapter *adapter = netdev_priv(netdev); 884 int ret = 0; 885 u32 len; 886 887 switch (tuna->id) { 888 case ETHTOOL_RX_COPYBREAK: 889 len = *(u32 *)data; 890 if (len > adapter->netdev->mtu) { 891 ret = -EINVAL; 892 break; 893 } 894 adapter->rx_copybreak = len; 895 break; 896 default: 897 ret = -EINVAL; 898 break; 899 } 900 901 return ret; 902 } 903 904 static const struct ethtool_ops ena_ethtool_ops = { 905 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 906 ETHTOOL_COALESCE_USE_ADAPTIVE_RX, 907 .get_link_ksettings = ena_get_link_ksettings, 908 .get_drvinfo = ena_get_drvinfo, 909 .get_msglevel = ena_get_msglevel, 910 .set_msglevel = ena_set_msglevel, 911 .get_link = ethtool_op_get_link, 912 .get_coalesce = ena_get_coalesce, 913 .set_coalesce = ena_set_coalesce, 914 .get_ringparam = ena_get_ringparam, 915 .set_ringparam = ena_set_ringparam, 916 .get_sset_count = ena_get_sset_count, 917 .get_strings = ena_get_ethtool_strings, 918 .get_ethtool_stats = ena_get_ethtool_stats, 919 .get_rxnfc = ena_get_rxnfc, 920 .set_rxnfc = ena_set_rxnfc, 921 .get_rxfh_indir_size = ena_get_rxfh_indir_size, 922 .get_rxfh_key_size = ena_get_rxfh_key_size, 923 .get_rxfh = ena_get_rxfh, 924 .set_rxfh = ena_set_rxfh, 925 .get_channels = ena_get_channels, 926 .set_channels = ena_set_channels, 927 .get_tunable = ena_get_tunable, 928 .set_tunable = ena_set_tunable, 929 .get_ts_info = ethtool_op_get_ts_info, 930 }; 931 932 void ena_set_ethtool_ops(struct net_device *netdev) 933 { 934 netdev->ethtool_ops = &ena_ethtool_ops; 935 } 936 937 static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf) 938 { 939 struct net_device *netdev = adapter->netdev; 940 u8 *strings_buf; 941 u64 *data_buf; 942 int strings_num; 943 int i, rc; 944 945 strings_num = ena_get_sw_stats_count(adapter); 946 if (strings_num <= 0) { 947 netif_err(adapter, drv, netdev, "Can't get stats num\n"); 948 return; 949 } 950 951 strings_buf = devm_kcalloc(&adapter->pdev->dev, 952 ETH_GSTRING_LEN, strings_num, 953 GFP_ATOMIC); 954 if (!strings_buf) { 955 netif_err(adapter, drv, netdev, 956 "Failed to allocate strings_buf\n"); 957 return; 958 } 959 960 data_buf = devm_kcalloc(&adapter->pdev->dev, 961 strings_num, sizeof(u64), 962 GFP_ATOMIC); 963 if (!data_buf) { 964 netif_err(adapter, drv, netdev, 965 "Failed to allocate data buf\n"); 966 devm_kfree(&adapter->pdev->dev, strings_buf); 967 return; 968 } 969 970 ena_get_strings(adapter, strings_buf, false); 971 ena_get_stats(adapter, data_buf, false); 972 973 /* If there is a buffer, dump stats, otherwise print them to dmesg */ 974 if (buf) 975 for (i = 0; i < strings_num; i++) { 976 rc = snprintf(buf, ETH_GSTRING_LEN + sizeof(u64), 977 "%s %llu\n", 978 strings_buf + i * ETH_GSTRING_LEN, 979 data_buf[i]); 980 buf += rc; 981 } 982 else 983 for (i = 0; i < strings_num; i++) 984 netif_err(adapter, drv, netdev, "%s: %llu\n", 985 strings_buf + i * ETH_GSTRING_LEN, 986 data_buf[i]); 987 988 devm_kfree(&adapter->pdev->dev, strings_buf); 989 devm_kfree(&adapter->pdev->dev, data_buf); 990 } 991 992 void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf) 993 { 994 if (!buf) 995 return; 996 997 ena_dump_stats_ex(adapter, buf); 998 } 999 1000 void ena_dump_stats_to_dmesg(struct ena_adapter *adapter) 1001 { 1002 ena_dump_stats_ex(adapter, NULL); 1003 } 1004