1 /* 2 * Copyright 2015 Amazon.com, Inc. or its affiliates. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #include <linux/pci.h> 34 35 #include "ena_netdev.h" 36 37 struct ena_stats { 38 char name[ETH_GSTRING_LEN]; 39 int stat_offset; 40 }; 41 42 #define ENA_STAT_ENA_COM_ENTRY(stat) { \ 43 .name = #stat, \ 44 .stat_offset = offsetof(struct ena_com_stats_admin, stat) \ 45 } 46 47 #define ENA_STAT_ENTRY(stat, stat_type) { \ 48 .name = #stat, \ 49 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) \ 50 } 51 52 #define ENA_STAT_RX_ENTRY(stat) \ 53 ENA_STAT_ENTRY(stat, rx) 54 55 #define ENA_STAT_TX_ENTRY(stat) \ 56 ENA_STAT_ENTRY(stat, tx) 57 58 #define ENA_STAT_GLOBAL_ENTRY(stat) \ 59 ENA_STAT_ENTRY(stat, dev) 60 61 static const struct ena_stats ena_stats_global_strings[] = { 62 ENA_STAT_GLOBAL_ENTRY(tx_timeout), 63 ENA_STAT_GLOBAL_ENTRY(suspend), 64 ENA_STAT_GLOBAL_ENTRY(resume), 65 ENA_STAT_GLOBAL_ENTRY(wd_expired), 66 ENA_STAT_GLOBAL_ENTRY(interface_up), 67 ENA_STAT_GLOBAL_ENTRY(interface_down), 68 ENA_STAT_GLOBAL_ENTRY(admin_q_pause), 69 }; 70 71 static const struct ena_stats ena_stats_tx_strings[] = { 72 ENA_STAT_TX_ENTRY(cnt), 73 ENA_STAT_TX_ENTRY(bytes), 74 ENA_STAT_TX_ENTRY(queue_stop), 75 ENA_STAT_TX_ENTRY(queue_wakeup), 76 ENA_STAT_TX_ENTRY(dma_mapping_err), 77 ENA_STAT_TX_ENTRY(linearize), 78 ENA_STAT_TX_ENTRY(linearize_failed), 79 ENA_STAT_TX_ENTRY(napi_comp), 80 ENA_STAT_TX_ENTRY(tx_poll), 81 ENA_STAT_TX_ENTRY(doorbells), 82 ENA_STAT_TX_ENTRY(prepare_ctx_err), 83 ENA_STAT_TX_ENTRY(bad_req_id), 84 ENA_STAT_TX_ENTRY(llq_buffer_copy), 85 ENA_STAT_TX_ENTRY(missed_tx), 86 }; 87 88 static const struct ena_stats ena_stats_rx_strings[] = { 89 ENA_STAT_RX_ENTRY(cnt), 90 ENA_STAT_RX_ENTRY(bytes), 91 ENA_STAT_RX_ENTRY(refil_partial), 92 ENA_STAT_RX_ENTRY(bad_csum), 93 ENA_STAT_RX_ENTRY(page_alloc_fail), 94 ENA_STAT_RX_ENTRY(skb_alloc_fail), 95 ENA_STAT_RX_ENTRY(dma_mapping_err), 96 ENA_STAT_RX_ENTRY(bad_desc_num), 97 ENA_STAT_RX_ENTRY(rx_copybreak_pkt), 98 ENA_STAT_RX_ENTRY(bad_req_id), 99 ENA_STAT_RX_ENTRY(empty_rx_ring), 100 ENA_STAT_RX_ENTRY(csum_unchecked), 101 }; 102 103 static const struct ena_stats ena_stats_ena_com_strings[] = { 104 ENA_STAT_ENA_COM_ENTRY(aborted_cmd), 105 ENA_STAT_ENA_COM_ENTRY(submitted_cmd), 106 ENA_STAT_ENA_COM_ENTRY(completed_cmd), 107 ENA_STAT_ENA_COM_ENTRY(out_of_space), 108 ENA_STAT_ENA_COM_ENTRY(no_completion), 109 }; 110 111 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings) 112 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings) 113 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings) 114 #define ENA_STATS_ARRAY_ENA_COM ARRAY_SIZE(ena_stats_ena_com_strings) 115 116 static void ena_safe_update_stat(u64 *src, u64 *dst, 117 struct u64_stats_sync *syncp) 118 { 119 unsigned int start; 120 121 do { 122 start = u64_stats_fetch_begin_irq(syncp); 123 *(dst) = *src; 124 } while (u64_stats_fetch_retry_irq(syncp, start)); 125 } 126 127 static void ena_queue_stats(struct ena_adapter *adapter, u64 **data) 128 { 129 const struct ena_stats *ena_stats; 130 struct ena_ring *ring; 131 132 u64 *ptr; 133 int i, j; 134 135 for (i = 0; i < adapter->num_queues; i++) { 136 /* Tx stats */ 137 ring = &adapter->tx_ring[i]; 138 139 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) { 140 ena_stats = &ena_stats_tx_strings[j]; 141 142 ptr = (u64 *)((uintptr_t)&ring->tx_stats + 143 (uintptr_t)ena_stats->stat_offset); 144 145 ena_safe_update_stat(ptr, (*data)++, &ring->syncp); 146 } 147 148 /* Rx stats */ 149 ring = &adapter->rx_ring[i]; 150 151 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) { 152 ena_stats = &ena_stats_rx_strings[j]; 153 154 ptr = (u64 *)((uintptr_t)&ring->rx_stats + 155 (uintptr_t)ena_stats->stat_offset); 156 157 ena_safe_update_stat(ptr, (*data)++, &ring->syncp); 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 u32 *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 = (u32 *)((uintptr_t)&adapter->ena_dev->admin_queue.stats + 172 (uintptr_t)ena_stats->stat_offset); 173 174 *(*data)++ = *ptr; 175 } 176 } 177 178 static void ena_get_ethtool_stats(struct net_device *netdev, 179 struct ethtool_stats *stats, 180 u64 *data) 181 { 182 struct ena_adapter *adapter = netdev_priv(netdev); 183 const struct ena_stats *ena_stats; 184 u64 *ptr; 185 int i; 186 187 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) { 188 ena_stats = &ena_stats_global_strings[i]; 189 190 ptr = (u64 *)((uintptr_t)&adapter->dev_stats + 191 (uintptr_t)ena_stats->stat_offset); 192 193 ena_safe_update_stat(ptr, data++, &adapter->syncp); 194 } 195 196 ena_queue_stats(adapter, &data); 197 ena_dev_admin_queue_stats(adapter, &data); 198 } 199 200 int ena_get_sset_count(struct net_device *netdev, int sset) 201 { 202 struct ena_adapter *adapter = netdev_priv(netdev); 203 204 if (sset != ETH_SS_STATS) 205 return -EOPNOTSUPP; 206 207 return adapter->num_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX) 208 + ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM; 209 } 210 211 static void ena_queue_strings(struct ena_adapter *adapter, u8 **data) 212 { 213 const struct ena_stats *ena_stats; 214 int i, j; 215 216 for (i = 0; i < adapter->num_queues; i++) { 217 /* Tx stats */ 218 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) { 219 ena_stats = &ena_stats_tx_strings[j]; 220 221 snprintf(*data, ETH_GSTRING_LEN, 222 "queue_%u_tx_%s", i, ena_stats->name); 223 (*data) += ETH_GSTRING_LEN; 224 } 225 /* Rx stats */ 226 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) { 227 ena_stats = &ena_stats_rx_strings[j]; 228 229 snprintf(*data, ETH_GSTRING_LEN, 230 "queue_%u_rx_%s", i, ena_stats->name); 231 (*data) += ETH_GSTRING_LEN; 232 } 233 } 234 } 235 236 static void ena_com_dev_strings(u8 **data) 237 { 238 const struct ena_stats *ena_stats; 239 int i; 240 241 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) { 242 ena_stats = &ena_stats_ena_com_strings[i]; 243 244 snprintf(*data, ETH_GSTRING_LEN, 245 "ena_admin_q_%s", ena_stats->name); 246 (*data) += ETH_GSTRING_LEN; 247 } 248 } 249 250 static void ena_get_strings(struct net_device *netdev, u32 sset, u8 *data) 251 { 252 struct ena_adapter *adapter = netdev_priv(netdev); 253 const struct ena_stats *ena_stats; 254 int i; 255 256 if (sset != ETH_SS_STATS) 257 return; 258 259 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) { 260 ena_stats = &ena_stats_global_strings[i]; 261 262 memcpy(data, ena_stats->name, ETH_GSTRING_LEN); 263 data += ETH_GSTRING_LEN; 264 } 265 266 ena_queue_strings(adapter, &data); 267 ena_com_dev_strings(&data); 268 } 269 270 static int ena_get_link_ksettings(struct net_device *netdev, 271 struct ethtool_link_ksettings *link_ksettings) 272 { 273 struct ena_adapter *adapter = netdev_priv(netdev); 274 struct ena_com_dev *ena_dev = adapter->ena_dev; 275 struct ena_admin_get_feature_link_desc *link; 276 struct ena_admin_get_feat_resp feat_resp; 277 int rc; 278 279 rc = ena_com_get_link_params(ena_dev, &feat_resp); 280 if (rc) 281 return rc; 282 283 link = &feat_resp.u.link; 284 link_ksettings->base.speed = link->speed; 285 286 if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) { 287 ethtool_link_ksettings_add_link_mode(link_ksettings, 288 supported, Autoneg); 289 ethtool_link_ksettings_add_link_mode(link_ksettings, 290 supported, Autoneg); 291 } 292 293 link_ksettings->base.autoneg = 294 (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) ? 295 AUTONEG_ENABLE : AUTONEG_DISABLE; 296 297 link_ksettings->base.duplex = DUPLEX_FULL; 298 299 return 0; 300 } 301 302 static int ena_get_coalesce(struct net_device *net_dev, 303 struct ethtool_coalesce *coalesce) 304 { 305 struct ena_adapter *adapter = netdev_priv(net_dev); 306 struct ena_com_dev *ena_dev = adapter->ena_dev; 307 struct ena_intr_moder_entry intr_moder_entry; 308 309 if (!ena_com_interrupt_moderation_supported(ena_dev)) { 310 /* the devie doesn't support interrupt moderation */ 311 return -EOPNOTSUPP; 312 } 313 coalesce->tx_coalesce_usecs = 314 ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) / 315 ena_dev->intr_delay_resolution; 316 if (!ena_com_get_adaptive_moderation_enabled(ena_dev)) { 317 coalesce->rx_coalesce_usecs = 318 ena_com_get_nonadaptive_moderation_interval_rx(ena_dev) 319 / ena_dev->intr_delay_resolution; 320 } else { 321 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_LOWEST, &intr_moder_entry); 322 coalesce->rx_coalesce_usecs_low = intr_moder_entry.intr_moder_interval; 323 coalesce->rx_max_coalesced_frames_low = intr_moder_entry.pkts_per_interval; 324 325 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_MID, &intr_moder_entry); 326 coalesce->rx_coalesce_usecs = intr_moder_entry.intr_moder_interval; 327 coalesce->rx_max_coalesced_frames = intr_moder_entry.pkts_per_interval; 328 329 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_HIGHEST, &intr_moder_entry); 330 coalesce->rx_coalesce_usecs_high = intr_moder_entry.intr_moder_interval; 331 coalesce->rx_max_coalesced_frames_high = intr_moder_entry.pkts_per_interval; 332 } 333 coalesce->use_adaptive_rx_coalesce = 334 ena_com_get_adaptive_moderation_enabled(ena_dev); 335 336 return 0; 337 } 338 339 static void ena_update_tx_rings_intr_moderation(struct ena_adapter *adapter) 340 { 341 unsigned int val; 342 int i; 343 344 val = ena_com_get_nonadaptive_moderation_interval_tx(adapter->ena_dev); 345 346 for (i = 0; i < adapter->num_queues; i++) 347 adapter->tx_ring[i].smoothed_interval = val; 348 } 349 350 static int ena_set_coalesce(struct net_device *net_dev, 351 struct ethtool_coalesce *coalesce) 352 { 353 struct ena_adapter *adapter = netdev_priv(net_dev); 354 struct ena_com_dev *ena_dev = adapter->ena_dev; 355 struct ena_intr_moder_entry intr_moder_entry; 356 int rc; 357 358 if (!ena_com_interrupt_moderation_supported(ena_dev)) { 359 /* the devie doesn't support interrupt moderation */ 360 return -EOPNOTSUPP; 361 } 362 363 if (coalesce->rx_coalesce_usecs_irq || 364 coalesce->rx_max_coalesced_frames_irq || 365 coalesce->tx_coalesce_usecs_irq || 366 coalesce->tx_max_coalesced_frames || 367 coalesce->tx_max_coalesced_frames_irq || 368 coalesce->stats_block_coalesce_usecs || 369 coalesce->use_adaptive_tx_coalesce || 370 coalesce->pkt_rate_low || 371 coalesce->tx_coalesce_usecs_low || 372 coalesce->tx_max_coalesced_frames_low || 373 coalesce->pkt_rate_high || 374 coalesce->tx_coalesce_usecs_high || 375 coalesce->tx_max_coalesced_frames_high || 376 coalesce->rate_sample_interval) 377 return -EINVAL; 378 379 rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev, 380 coalesce->tx_coalesce_usecs); 381 if (rc) 382 return rc; 383 384 ena_update_tx_rings_intr_moderation(adapter); 385 386 if (ena_com_get_adaptive_moderation_enabled(ena_dev)) { 387 if (!coalesce->use_adaptive_rx_coalesce) { 388 ena_com_disable_adaptive_moderation(ena_dev); 389 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev, 390 coalesce->rx_coalesce_usecs); 391 return rc; 392 } 393 } else { /* was in non-adaptive mode */ 394 if (coalesce->use_adaptive_rx_coalesce) { 395 ena_com_enable_adaptive_moderation(ena_dev); 396 } else { 397 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev, 398 coalesce->rx_coalesce_usecs); 399 return rc; 400 } 401 } 402 403 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs_low; 404 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames_low; 405 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED; 406 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_LOWEST, &intr_moder_entry); 407 408 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs; 409 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames; 410 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED; 411 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_MID, &intr_moder_entry); 412 413 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs_high; 414 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames_high; 415 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED; 416 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_HIGHEST, &intr_moder_entry); 417 418 return 0; 419 } 420 421 static u32 ena_get_msglevel(struct net_device *netdev) 422 { 423 struct ena_adapter *adapter = netdev_priv(netdev); 424 425 return adapter->msg_enable; 426 } 427 428 static void ena_set_msglevel(struct net_device *netdev, u32 value) 429 { 430 struct ena_adapter *adapter = netdev_priv(netdev); 431 432 adapter->msg_enable = value; 433 } 434 435 static void ena_get_drvinfo(struct net_device *dev, 436 struct ethtool_drvinfo *info) 437 { 438 struct ena_adapter *adapter = netdev_priv(dev); 439 440 strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver)); 441 strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version)); 442 strlcpy(info->bus_info, pci_name(adapter->pdev), 443 sizeof(info->bus_info)); 444 } 445 446 static void ena_get_ringparam(struct net_device *netdev, 447 struct ethtool_ringparam *ring) 448 { 449 struct ena_adapter *adapter = netdev_priv(netdev); 450 struct ena_ring *tx_ring = &adapter->tx_ring[0]; 451 struct ena_ring *rx_ring = &adapter->rx_ring[0]; 452 453 ring->rx_max_pending = rx_ring->ring_size; 454 ring->tx_max_pending = tx_ring->ring_size; 455 ring->rx_pending = rx_ring->ring_size; 456 ring->tx_pending = tx_ring->ring_size; 457 } 458 459 static u32 ena_flow_hash_to_flow_type(u16 hash_fields) 460 { 461 u32 data = 0; 462 463 if (hash_fields & ENA_ADMIN_RSS_L2_DA) 464 data |= RXH_L2DA; 465 466 if (hash_fields & ENA_ADMIN_RSS_L3_DA) 467 data |= RXH_IP_DST; 468 469 if (hash_fields & ENA_ADMIN_RSS_L3_SA) 470 data |= RXH_IP_SRC; 471 472 if (hash_fields & ENA_ADMIN_RSS_L4_DP) 473 data |= RXH_L4_B_2_3; 474 475 if (hash_fields & ENA_ADMIN_RSS_L4_SP) 476 data |= RXH_L4_B_0_1; 477 478 return data; 479 } 480 481 static u16 ena_flow_data_to_flow_hash(u32 hash_fields) 482 { 483 u16 data = 0; 484 485 if (hash_fields & RXH_L2DA) 486 data |= ENA_ADMIN_RSS_L2_DA; 487 488 if (hash_fields & RXH_IP_DST) 489 data |= ENA_ADMIN_RSS_L3_DA; 490 491 if (hash_fields & RXH_IP_SRC) 492 data |= ENA_ADMIN_RSS_L3_SA; 493 494 if (hash_fields & RXH_L4_B_2_3) 495 data |= ENA_ADMIN_RSS_L4_DP; 496 497 if (hash_fields & RXH_L4_B_0_1) 498 data |= ENA_ADMIN_RSS_L4_SP; 499 500 return data; 501 } 502 503 static int ena_get_rss_hash(struct ena_com_dev *ena_dev, 504 struct ethtool_rxnfc *cmd) 505 { 506 enum ena_admin_flow_hash_proto proto; 507 u16 hash_fields; 508 int rc; 509 510 cmd->data = 0; 511 512 switch (cmd->flow_type) { 513 case TCP_V4_FLOW: 514 proto = ENA_ADMIN_RSS_TCP4; 515 break; 516 case UDP_V4_FLOW: 517 proto = ENA_ADMIN_RSS_UDP4; 518 break; 519 case TCP_V6_FLOW: 520 proto = ENA_ADMIN_RSS_TCP6; 521 break; 522 case UDP_V6_FLOW: 523 proto = ENA_ADMIN_RSS_UDP6; 524 break; 525 case IPV4_FLOW: 526 proto = ENA_ADMIN_RSS_IP4; 527 break; 528 case IPV6_FLOW: 529 proto = ENA_ADMIN_RSS_IP6; 530 break; 531 case ETHER_FLOW: 532 proto = ENA_ADMIN_RSS_NOT_IP; 533 break; 534 case AH_V4_FLOW: 535 case ESP_V4_FLOW: 536 case AH_V6_FLOW: 537 case ESP_V6_FLOW: 538 case SCTP_V4_FLOW: 539 case AH_ESP_V4_FLOW: 540 return -EOPNOTSUPP; 541 default: 542 return -EINVAL; 543 } 544 545 rc = ena_com_get_hash_ctrl(ena_dev, proto, &hash_fields); 546 if (rc) 547 return rc; 548 549 cmd->data = ena_flow_hash_to_flow_type(hash_fields); 550 551 return 0; 552 } 553 554 static int ena_set_rss_hash(struct ena_com_dev *ena_dev, 555 struct ethtool_rxnfc *cmd) 556 { 557 enum ena_admin_flow_hash_proto proto; 558 u16 hash_fields; 559 560 switch (cmd->flow_type) { 561 case TCP_V4_FLOW: 562 proto = ENA_ADMIN_RSS_TCP4; 563 break; 564 case UDP_V4_FLOW: 565 proto = ENA_ADMIN_RSS_UDP4; 566 break; 567 case TCP_V6_FLOW: 568 proto = ENA_ADMIN_RSS_TCP6; 569 break; 570 case UDP_V6_FLOW: 571 proto = ENA_ADMIN_RSS_UDP6; 572 break; 573 case IPV4_FLOW: 574 proto = ENA_ADMIN_RSS_IP4; 575 break; 576 case IPV6_FLOW: 577 proto = ENA_ADMIN_RSS_IP6; 578 break; 579 case ETHER_FLOW: 580 proto = ENA_ADMIN_RSS_NOT_IP; 581 break; 582 case AH_V4_FLOW: 583 case ESP_V4_FLOW: 584 case AH_V6_FLOW: 585 case ESP_V6_FLOW: 586 case SCTP_V4_FLOW: 587 case AH_ESP_V4_FLOW: 588 return -EOPNOTSUPP; 589 default: 590 return -EINVAL; 591 } 592 593 hash_fields = ena_flow_data_to_flow_hash(cmd->data); 594 595 return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields); 596 } 597 598 static int ena_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info) 599 { 600 struct ena_adapter *adapter = netdev_priv(netdev); 601 int rc = 0; 602 603 switch (info->cmd) { 604 case ETHTOOL_SRXFH: 605 rc = ena_set_rss_hash(adapter->ena_dev, info); 606 break; 607 case ETHTOOL_SRXCLSRLDEL: 608 case ETHTOOL_SRXCLSRLINS: 609 default: 610 netif_err(adapter, drv, netdev, 611 "Command parameter %d is not supported\n", info->cmd); 612 rc = -EOPNOTSUPP; 613 } 614 615 return rc; 616 } 617 618 static int ena_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info, 619 u32 *rules) 620 { 621 struct ena_adapter *adapter = netdev_priv(netdev); 622 int rc = 0; 623 624 switch (info->cmd) { 625 case ETHTOOL_GRXRINGS: 626 info->data = adapter->num_queues; 627 rc = 0; 628 break; 629 case ETHTOOL_GRXFH: 630 rc = ena_get_rss_hash(adapter->ena_dev, info); 631 break; 632 case ETHTOOL_GRXCLSRLCNT: 633 case ETHTOOL_GRXCLSRULE: 634 case ETHTOOL_GRXCLSRLALL: 635 default: 636 netif_err(adapter, drv, netdev, 637 "Command parameter %d is not supported\n", info->cmd); 638 rc = -EOPNOTSUPP; 639 } 640 641 return rc; 642 } 643 644 static u32 ena_get_rxfh_indir_size(struct net_device *netdev) 645 { 646 return ENA_RX_RSS_TABLE_SIZE; 647 } 648 649 static u32 ena_get_rxfh_key_size(struct net_device *netdev) 650 { 651 return ENA_HASH_KEY_SIZE; 652 } 653 654 static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 655 u8 *hfunc) 656 { 657 struct ena_adapter *adapter = netdev_priv(netdev); 658 enum ena_admin_hash_functions ena_func; 659 u8 func; 660 int rc; 661 662 rc = ena_com_indirect_table_get(adapter->ena_dev, indir); 663 if (rc) 664 return rc; 665 666 rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func, key); 667 if (rc) 668 return rc; 669 670 switch (ena_func) { 671 case ENA_ADMIN_TOEPLITZ: 672 func = ETH_RSS_HASH_TOP; 673 break; 674 case ENA_ADMIN_CRC32: 675 func = ETH_RSS_HASH_XOR; 676 break; 677 default: 678 netif_err(adapter, drv, netdev, 679 "Command parameter is not supported\n"); 680 return -EOPNOTSUPP; 681 } 682 683 if (hfunc) 684 *hfunc = func; 685 686 return rc; 687 } 688 689 static int ena_set_rxfh(struct net_device *netdev, const u32 *indir, 690 const u8 *key, const u8 hfunc) 691 { 692 struct ena_adapter *adapter = netdev_priv(netdev); 693 struct ena_com_dev *ena_dev = adapter->ena_dev; 694 enum ena_admin_hash_functions func; 695 int rc, i; 696 697 if (indir) { 698 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) { 699 rc = ena_com_indirect_table_fill_entry(ena_dev, 700 ENA_IO_RXQ_IDX(indir[i]), 701 i); 702 if (unlikely(rc)) { 703 netif_err(adapter, drv, netdev, 704 "Cannot fill indirect table (index is too large)\n"); 705 return rc; 706 } 707 } 708 709 rc = ena_com_indirect_table_set(ena_dev); 710 if (rc) { 711 netif_err(adapter, drv, netdev, 712 "Cannot set indirect table\n"); 713 return rc == -EPERM ? -EOPNOTSUPP : rc; 714 } 715 } 716 717 switch (hfunc) { 718 case ETH_RSS_HASH_TOP: 719 func = ENA_ADMIN_TOEPLITZ; 720 break; 721 case ETH_RSS_HASH_XOR: 722 func = ENA_ADMIN_CRC32; 723 break; 724 default: 725 netif_err(adapter, drv, netdev, "Unsupported hfunc %d\n", 726 hfunc); 727 return -EOPNOTSUPP; 728 } 729 730 if (key) { 731 rc = ena_com_fill_hash_function(ena_dev, func, key, 732 ENA_HASH_KEY_SIZE, 733 0xFFFFFFFF); 734 if (unlikely(rc)) { 735 netif_err(adapter, drv, netdev, "Cannot fill key\n"); 736 return rc == -EPERM ? -EOPNOTSUPP : rc; 737 } 738 } 739 740 return 0; 741 } 742 743 static void ena_get_channels(struct net_device *netdev, 744 struct ethtool_channels *channels) 745 { 746 struct ena_adapter *adapter = netdev_priv(netdev); 747 748 channels->max_rx = adapter->num_queues; 749 channels->max_tx = adapter->num_queues; 750 channels->max_other = 0; 751 channels->max_combined = 0; 752 channels->rx_count = adapter->num_queues; 753 channels->tx_count = adapter->num_queues; 754 channels->other_count = 0; 755 channels->combined_count = 0; 756 } 757 758 static int ena_get_tunable(struct net_device *netdev, 759 const struct ethtool_tunable *tuna, void *data) 760 { 761 struct ena_adapter *adapter = netdev_priv(netdev); 762 int ret = 0; 763 764 switch (tuna->id) { 765 case ETHTOOL_RX_COPYBREAK: 766 *(u32 *)data = adapter->rx_copybreak; 767 break; 768 default: 769 ret = -EINVAL; 770 break; 771 } 772 773 return ret; 774 } 775 776 static int ena_set_tunable(struct net_device *netdev, 777 const struct ethtool_tunable *tuna, 778 const void *data) 779 { 780 struct ena_adapter *adapter = netdev_priv(netdev); 781 int ret = 0; 782 u32 len; 783 784 switch (tuna->id) { 785 case ETHTOOL_RX_COPYBREAK: 786 len = *(u32 *)data; 787 if (len > adapter->netdev->mtu) { 788 ret = -EINVAL; 789 break; 790 } 791 adapter->rx_copybreak = len; 792 break; 793 default: 794 ret = -EINVAL; 795 break; 796 } 797 798 return ret; 799 } 800 801 static const struct ethtool_ops ena_ethtool_ops = { 802 .get_link_ksettings = ena_get_link_ksettings, 803 .get_drvinfo = ena_get_drvinfo, 804 .get_msglevel = ena_get_msglevel, 805 .set_msglevel = ena_set_msglevel, 806 .get_link = ethtool_op_get_link, 807 .get_coalesce = ena_get_coalesce, 808 .set_coalesce = ena_set_coalesce, 809 .get_ringparam = ena_get_ringparam, 810 .get_sset_count = ena_get_sset_count, 811 .get_strings = ena_get_strings, 812 .get_ethtool_stats = ena_get_ethtool_stats, 813 .get_rxnfc = ena_get_rxnfc, 814 .set_rxnfc = ena_set_rxnfc, 815 .get_rxfh_indir_size = ena_get_rxfh_indir_size, 816 .get_rxfh_key_size = ena_get_rxfh_key_size, 817 .get_rxfh = ena_get_rxfh, 818 .set_rxfh = ena_set_rxfh, 819 .get_channels = ena_get_channels, 820 .get_tunable = ena_get_tunable, 821 .set_tunable = ena_set_tunable, 822 }; 823 824 void ena_set_ethtool_ops(struct net_device *netdev) 825 { 826 netdev->ethtool_ops = &ena_ethtool_ops; 827 } 828 829 static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf) 830 { 831 struct net_device *netdev = adapter->netdev; 832 u8 *strings_buf; 833 u64 *data_buf; 834 int strings_num; 835 int i, rc; 836 837 strings_num = ena_get_sset_count(netdev, ETH_SS_STATS); 838 if (strings_num <= 0) { 839 netif_err(adapter, drv, netdev, "Can't get stats num\n"); 840 return; 841 } 842 843 strings_buf = devm_kcalloc(&adapter->pdev->dev, 844 ETH_GSTRING_LEN, strings_num, 845 GFP_ATOMIC); 846 if (!strings_buf) { 847 netif_err(adapter, drv, netdev, 848 "failed to alloc strings_buf\n"); 849 return; 850 } 851 852 data_buf = devm_kcalloc(&adapter->pdev->dev, 853 strings_num, sizeof(u64), 854 GFP_ATOMIC); 855 if (!data_buf) { 856 netif_err(adapter, drv, netdev, 857 "failed to allocate data buf\n"); 858 devm_kfree(&adapter->pdev->dev, strings_buf); 859 return; 860 } 861 862 ena_get_strings(netdev, ETH_SS_STATS, strings_buf); 863 ena_get_ethtool_stats(netdev, NULL, data_buf); 864 865 /* If there is a buffer, dump stats, otherwise print them to dmesg */ 866 if (buf) 867 for (i = 0; i < strings_num; i++) { 868 rc = snprintf(buf, ETH_GSTRING_LEN + sizeof(u64), 869 "%s %llu\n", 870 strings_buf + i * ETH_GSTRING_LEN, 871 data_buf[i]); 872 buf += rc; 873 } 874 else 875 for (i = 0; i < strings_num; i++) 876 netif_err(adapter, drv, netdev, "%s: %llu\n", 877 strings_buf + i * ETH_GSTRING_LEN, 878 data_buf[i]); 879 880 devm_kfree(&adapter->pdev->dev, strings_buf); 881 devm_kfree(&adapter->pdev->dev, data_buf); 882 } 883 884 void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf) 885 { 886 if (!buf) 887 return; 888 889 ena_dump_stats_ex(adapter, buf); 890 } 891 892 void ena_dump_stats_to_dmesg(struct ena_adapter *adapter) 893 { 894 ena_dump_stats_ex(adapter, NULL); 895 } 896