1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2016-2018 Microsoft Corporation 3 * Copyright(c) 2013-2016 Brocade Communications Systems, Inc. 4 * All rights reserved. 5 */ 6 7 #include <stdint.h> 8 #include <string.h> 9 #include <stdio.h> 10 #include <errno.h> 11 #include <unistd.h> 12 13 #include <rte_ethdev.h> 14 #include <rte_memcpy.h> 15 #include <rte_string_fns.h> 16 #include <rte_memzone.h> 17 #include <rte_devargs.h> 18 #include <rte_malloc.h> 19 #include <rte_kvargs.h> 20 #include <rte_atomic.h> 21 #include <rte_branch_prediction.h> 22 #include <rte_ether.h> 23 #include <rte_ethdev_driver.h> 24 #include <rte_cycles.h> 25 #include <rte_errno.h> 26 #include <rte_memory.h> 27 #include <rte_eal.h> 28 #include <rte_dev.h> 29 #include <rte_bus_vmbus.h> 30 31 #include "hn_logs.h" 32 #include "hn_var.h" 33 #include "hn_rndis.h" 34 #include "hn_nvs.h" 35 #include "ndis.h" 36 37 #define HN_TX_OFFLOAD_CAPS (DEV_TX_OFFLOAD_IPV4_CKSUM | \ 38 DEV_TX_OFFLOAD_TCP_CKSUM | \ 39 DEV_TX_OFFLOAD_UDP_CKSUM | \ 40 DEV_TX_OFFLOAD_TCP_TSO | \ 41 DEV_TX_OFFLOAD_MULTI_SEGS | \ 42 DEV_TX_OFFLOAD_VLAN_INSERT) 43 44 #define HN_RX_OFFLOAD_CAPS (DEV_RX_OFFLOAD_CHECKSUM | \ 45 DEV_RX_OFFLOAD_VLAN_STRIP | \ 46 DEV_RX_OFFLOAD_RSS_HASH) 47 48 int hn_logtype_init; 49 int hn_logtype_driver; 50 51 struct hn_xstats_name_off { 52 char name[RTE_ETH_XSTATS_NAME_SIZE]; 53 unsigned int offset; 54 }; 55 56 static const struct hn_xstats_name_off hn_stat_strings[] = { 57 { "good_packets", offsetof(struct hn_stats, packets) }, 58 { "good_bytes", offsetof(struct hn_stats, bytes) }, 59 { "errors", offsetof(struct hn_stats, errors) }, 60 { "ring full", offsetof(struct hn_stats, ring_full) }, 61 { "multicast_packets", offsetof(struct hn_stats, multicast) }, 62 { "broadcast_packets", offsetof(struct hn_stats, broadcast) }, 63 { "undersize_packets", offsetof(struct hn_stats, size_bins[0]) }, 64 { "size_64_packets", offsetof(struct hn_stats, size_bins[1]) }, 65 { "size_65_127_packets", offsetof(struct hn_stats, size_bins[2]) }, 66 { "size_128_255_packets", offsetof(struct hn_stats, size_bins[3]) }, 67 { "size_256_511_packets", offsetof(struct hn_stats, size_bins[4]) }, 68 { "size_512_1023_packets", offsetof(struct hn_stats, size_bins[5]) }, 69 { "size_1024_1518_packets", offsetof(struct hn_stats, size_bins[6]) }, 70 { "size_1519_max_packets", offsetof(struct hn_stats, size_bins[7]) }, 71 }; 72 73 /* The default RSS key. 74 * This value is the same as MLX5 so that flows will be 75 * received on same path for both VF ans synthetic NIC. 76 */ 77 static const uint8_t rss_default_key[NDIS_HASH_KEYSIZE_TOEPLITZ] = { 78 0x2c, 0xc6, 0x81, 0xd1, 0x5b, 0xdb, 0xf4, 0xf7, 79 0xfc, 0xa2, 0x83, 0x19, 0xdb, 0x1a, 0x3e, 0x94, 80 0x6b, 0x9e, 0x38, 0xd9, 0x2c, 0x9c, 0x03, 0xd1, 81 0xad, 0x99, 0x44, 0xa7, 0xd9, 0x56, 0x3d, 0x59, 82 0x06, 0x3c, 0x25, 0xf3, 0xfc, 0x1f, 0xdc, 0x2a, 83 }; 84 85 static struct rte_eth_dev * 86 eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size) 87 { 88 struct rte_eth_dev *eth_dev; 89 const char *name; 90 91 if (!dev) 92 return NULL; 93 94 name = dev->device.name; 95 96 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 97 eth_dev = rte_eth_dev_allocate(name); 98 if (!eth_dev) { 99 PMD_DRV_LOG(NOTICE, "can not allocate rte ethdev"); 100 return NULL; 101 } 102 103 if (private_data_size) { 104 eth_dev->data->dev_private = 105 rte_zmalloc_socket(name, private_data_size, 106 RTE_CACHE_LINE_SIZE, dev->device.numa_node); 107 if (!eth_dev->data->dev_private) { 108 PMD_DRV_LOG(NOTICE, "can not allocate driver data"); 109 rte_eth_dev_release_port(eth_dev); 110 return NULL; 111 } 112 } 113 } else { 114 eth_dev = rte_eth_dev_attach_secondary(name); 115 if (!eth_dev) { 116 PMD_DRV_LOG(NOTICE, "can not attach secondary"); 117 return NULL; 118 } 119 } 120 121 eth_dev->device = &dev->device; 122 123 /* interrupt is simulated */ 124 dev->intr_handle.type = RTE_INTR_HANDLE_EXT; 125 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC; 126 eth_dev->intr_handle = &dev->intr_handle; 127 128 /* allow ethdev to remove on close */ 129 eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE; 130 131 return eth_dev; 132 } 133 134 static void 135 eth_dev_vmbus_release(struct rte_eth_dev *eth_dev) 136 { 137 /* mac_addrs must not be freed alone because part of dev_private */ 138 eth_dev->data->mac_addrs = NULL; 139 /* free ether device */ 140 rte_eth_dev_release_port(eth_dev); 141 142 eth_dev->device = NULL; 143 eth_dev->intr_handle = NULL; 144 } 145 146 /* handle "latency=X" from devargs */ 147 static int hn_set_latency(const char *key, const char *value, void *opaque) 148 { 149 struct hn_data *hv = opaque; 150 char *endp = NULL; 151 unsigned long lat; 152 153 errno = 0; 154 lat = strtoul(value, &endp, 0); 155 156 if (*value == '\0' || *endp != '\0') { 157 PMD_DRV_LOG(ERR, "invalid parameter %s=%s", key, value); 158 return -EINVAL; 159 } 160 161 PMD_DRV_LOG(DEBUG, "set latency %lu usec", lat); 162 163 hv->latency = lat * 1000; /* usec to nsec */ 164 return 0; 165 } 166 167 /* Parse device arguments */ 168 static int hn_parse_args(const struct rte_eth_dev *dev) 169 { 170 struct hn_data *hv = dev->data->dev_private; 171 struct rte_devargs *devargs = dev->device->devargs; 172 static const char * const valid_keys[] = { 173 "latency", 174 NULL 175 }; 176 struct rte_kvargs *kvlist; 177 int ret; 178 179 if (!devargs) 180 return 0; 181 182 PMD_INIT_LOG(DEBUG, "device args %s %s", 183 devargs->name, devargs->args); 184 185 kvlist = rte_kvargs_parse(devargs->args, valid_keys); 186 if (!kvlist) { 187 PMD_DRV_LOG(NOTICE, "invalid parameters"); 188 return -EINVAL; 189 } 190 191 ret = rte_kvargs_process(kvlist, "latency", hn_set_latency, hv); 192 if (ret) 193 PMD_DRV_LOG(ERR, "Unable to process latency arg\n"); 194 195 rte_kvargs_free(kvlist); 196 return ret; 197 } 198 199 /* Update link status. 200 * Note: the DPDK definition of "wait_to_complete" 201 * means block this call until link is up. 202 * which is not worth supporting. 203 */ 204 int 205 hn_dev_link_update(struct rte_eth_dev *dev, 206 int wait_to_complete) 207 { 208 struct hn_data *hv = dev->data->dev_private; 209 struct rte_eth_link link, old; 210 int error; 211 212 old = dev->data->dev_link; 213 214 error = hn_rndis_get_linkstatus(hv); 215 if (error) 216 return error; 217 218 hn_rndis_get_linkspeed(hv); 219 220 hn_vf_link_update(dev, wait_to_complete); 221 222 link = (struct rte_eth_link) { 223 .link_duplex = ETH_LINK_FULL_DUPLEX, 224 .link_autoneg = ETH_LINK_SPEED_FIXED, 225 .link_speed = hv->link_speed / 10000, 226 }; 227 228 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED) 229 link.link_status = ETH_LINK_UP; 230 else 231 link.link_status = ETH_LINK_DOWN; 232 233 if (old.link_status == link.link_status) 234 return 0; 235 236 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id, 237 (link.link_status == ETH_LINK_UP) ? "up" : "down"); 238 239 return rte_eth_linkstatus_set(dev, &link); 240 } 241 242 static int hn_dev_info_get(struct rte_eth_dev *dev, 243 struct rte_eth_dev_info *dev_info) 244 { 245 struct hn_data *hv = dev->data->dev_private; 246 int rc; 247 248 dev_info->speed_capa = ETH_LINK_SPEED_10G; 249 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE; 250 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN; 251 dev_info->max_mac_addrs = 1; 252 253 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ; 254 dev_info->flow_type_rss_offloads = hv->rss_offloads; 255 dev_info->reta_size = ETH_RSS_RETA_SIZE_128; 256 257 dev_info->max_rx_queues = hv->max_queues; 258 dev_info->max_tx_queues = hv->max_queues; 259 260 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 261 return 0; 262 263 /* fills in rx and tx offload capability */ 264 rc = hn_rndis_get_offload(hv, dev_info); 265 if (rc != 0) 266 return rc; 267 268 /* merges the offload and queues of vf */ 269 return hn_vf_info_get(hv, dev_info); 270 } 271 272 static int hn_rss_reta_update(struct rte_eth_dev *dev, 273 struct rte_eth_rss_reta_entry64 *reta_conf, 274 uint16_t reta_size) 275 { 276 struct hn_data *hv = dev->data->dev_private; 277 unsigned int i; 278 int err; 279 280 PMD_INIT_FUNC_TRACE(); 281 282 if (reta_size != NDIS_HASH_INDCNT) { 283 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 284 return -EINVAL; 285 } 286 287 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 288 uint16_t idx = i / RTE_RETA_GROUP_SIZE; 289 uint16_t shift = i % RTE_RETA_GROUP_SIZE; 290 uint64_t mask = (uint64_t)1 << shift; 291 292 if (reta_conf[idx].mask & mask) 293 hv->rss_ind[i] = reta_conf[idx].reta[shift]; 294 } 295 296 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 297 if (err) { 298 PMD_DRV_LOG(NOTICE, 299 "rss disable failed"); 300 return err; 301 } 302 303 err = hn_rndis_conf_rss(hv, 0); 304 if (err) { 305 PMD_DRV_LOG(NOTICE, 306 "reta reconfig failed"); 307 return err; 308 } 309 310 return hn_vf_reta_hash_update(dev, reta_conf, reta_size); 311 } 312 313 static int hn_rss_reta_query(struct rte_eth_dev *dev, 314 struct rte_eth_rss_reta_entry64 *reta_conf, 315 uint16_t reta_size) 316 { 317 struct hn_data *hv = dev->data->dev_private; 318 unsigned int i; 319 320 PMD_INIT_FUNC_TRACE(); 321 322 if (reta_size != NDIS_HASH_INDCNT) { 323 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 324 return -EINVAL; 325 } 326 327 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 328 uint16_t idx = i / RTE_RETA_GROUP_SIZE; 329 uint16_t shift = i % RTE_RETA_GROUP_SIZE; 330 uint64_t mask = (uint64_t)1 << shift; 331 332 if (reta_conf[idx].mask & mask) 333 reta_conf[idx].reta[shift] = hv->rss_ind[i]; 334 } 335 return 0; 336 } 337 338 static void hn_rss_hash_init(struct hn_data *hv, 339 const struct rte_eth_rss_conf *rss_conf) 340 { 341 /* Convert from DPDK RSS hash flags to NDIS hash flags */ 342 hv->rss_hash = NDIS_HASH_FUNCTION_TOEPLITZ; 343 344 if (rss_conf->rss_hf & ETH_RSS_IPV4) 345 hv->rss_hash |= NDIS_HASH_IPV4; 346 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) 347 hv->rss_hash |= NDIS_HASH_TCP_IPV4; 348 if (rss_conf->rss_hf & ETH_RSS_IPV6) 349 hv->rss_hash |= NDIS_HASH_IPV6; 350 if (rss_conf->rss_hf & ETH_RSS_IPV6_EX) 351 hv->rss_hash |= NDIS_HASH_IPV6_EX; 352 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP) 353 hv->rss_hash |= NDIS_HASH_TCP_IPV6; 354 if (rss_conf->rss_hf & ETH_RSS_IPV6_TCP_EX) 355 hv->rss_hash |= NDIS_HASH_TCP_IPV6_EX; 356 357 memcpy(hv->rss_key, rss_conf->rss_key ? : rss_default_key, 358 NDIS_HASH_KEYSIZE_TOEPLITZ); 359 } 360 361 static int hn_rss_hash_update(struct rte_eth_dev *dev, 362 struct rte_eth_rss_conf *rss_conf) 363 { 364 struct hn_data *hv = dev->data->dev_private; 365 int err; 366 367 PMD_INIT_FUNC_TRACE(); 368 369 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 370 if (err) { 371 PMD_DRV_LOG(NOTICE, 372 "rss disable failed"); 373 return err; 374 } 375 376 hn_rss_hash_init(hv, rss_conf); 377 378 err = hn_rndis_conf_rss(hv, 0); 379 if (err) { 380 PMD_DRV_LOG(NOTICE, 381 "rss reconfig failed (RSS disabled)"); 382 return err; 383 } 384 385 386 return hn_vf_rss_hash_update(dev, rss_conf); 387 } 388 389 static int hn_rss_hash_conf_get(struct rte_eth_dev *dev, 390 struct rte_eth_rss_conf *rss_conf) 391 { 392 struct hn_data *hv = dev->data->dev_private; 393 394 PMD_INIT_FUNC_TRACE(); 395 396 if (hv->ndis_ver < NDIS_VERSION_6_20) { 397 PMD_DRV_LOG(DEBUG, "RSS not supported on this host"); 398 return -EOPNOTSUPP; 399 } 400 401 rss_conf->rss_key_len = NDIS_HASH_KEYSIZE_TOEPLITZ; 402 if (rss_conf->rss_key) 403 memcpy(rss_conf->rss_key, hv->rss_key, 404 NDIS_HASH_KEYSIZE_TOEPLITZ); 405 406 rss_conf->rss_hf = 0; 407 if (hv->rss_hash & NDIS_HASH_IPV4) 408 rss_conf->rss_hf |= ETH_RSS_IPV4; 409 410 if (hv->rss_hash & NDIS_HASH_TCP_IPV4) 411 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP; 412 413 if (hv->rss_hash & NDIS_HASH_IPV6) 414 rss_conf->rss_hf |= ETH_RSS_IPV6; 415 416 if (hv->rss_hash & NDIS_HASH_IPV6_EX) 417 rss_conf->rss_hf |= ETH_RSS_IPV6_EX; 418 419 if (hv->rss_hash & NDIS_HASH_TCP_IPV6) 420 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP; 421 422 if (hv->rss_hash & NDIS_HASH_TCP_IPV6_EX) 423 rss_conf->rss_hf |= ETH_RSS_IPV6_TCP_EX; 424 425 return 0; 426 } 427 428 static int 429 hn_dev_promiscuous_enable(struct rte_eth_dev *dev) 430 { 431 struct hn_data *hv = dev->data->dev_private; 432 433 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); 434 return hn_vf_promiscuous_enable(dev); 435 } 436 437 static int 438 hn_dev_promiscuous_disable(struct rte_eth_dev *dev) 439 { 440 struct hn_data *hv = dev->data->dev_private; 441 uint32_t filter; 442 443 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; 444 if (dev->data->all_multicast) 445 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; 446 hn_rndis_set_rxfilter(hv, filter); 447 return hn_vf_promiscuous_disable(dev); 448 } 449 450 static int 451 hn_dev_allmulticast_enable(struct rte_eth_dev *dev) 452 { 453 struct hn_data *hv = dev->data->dev_private; 454 455 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 456 NDIS_PACKET_TYPE_ALL_MULTICAST | 457 NDIS_PACKET_TYPE_BROADCAST); 458 return hn_vf_allmulticast_enable(dev); 459 } 460 461 static int 462 hn_dev_allmulticast_disable(struct rte_eth_dev *dev) 463 { 464 struct hn_data *hv = dev->data->dev_private; 465 466 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 467 NDIS_PACKET_TYPE_BROADCAST); 468 return hn_vf_allmulticast_disable(dev); 469 } 470 471 static int 472 hn_dev_mc_addr_list(struct rte_eth_dev *dev, 473 struct rte_ether_addr *mc_addr_set, 474 uint32_t nb_mc_addr) 475 { 476 /* No filtering on the synthetic path, but can do it on VF */ 477 return hn_vf_mc_addr_list(dev, mc_addr_set, nb_mc_addr); 478 } 479 480 /* Setup shared rx/tx queue data */ 481 static int hn_subchan_configure(struct hn_data *hv, 482 uint32_t subchan) 483 { 484 struct vmbus_channel *primary = hn_primary_chan(hv); 485 int err; 486 unsigned int retry = 0; 487 488 PMD_DRV_LOG(DEBUG, 489 "open %u subchannels", subchan); 490 491 /* Send create sub channels command */ 492 err = hn_nvs_alloc_subchans(hv, &subchan); 493 if (err) 494 return err; 495 496 while (subchan > 0) { 497 struct vmbus_channel *new_sc; 498 uint16_t chn_index; 499 500 err = rte_vmbus_subchan_open(primary, &new_sc); 501 if (err == -ENOENT && ++retry < 1000) { 502 /* This can happen if not ready yet */ 503 rte_delay_ms(10); 504 continue; 505 } 506 507 if (err) { 508 PMD_DRV_LOG(ERR, 509 "open subchannel failed: %d", err); 510 return err; 511 } 512 513 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); 514 515 retry = 0; 516 chn_index = rte_vmbus_sub_channel_index(new_sc); 517 if (chn_index == 0 || chn_index > hv->max_queues) { 518 PMD_DRV_LOG(ERR, 519 "Invalid subchannel offermsg channel %u", 520 chn_index); 521 return -EIO; 522 } 523 524 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); 525 hv->channels[chn_index] = new_sc; 526 --subchan; 527 } 528 529 return err; 530 } 531 532 static int hn_dev_configure(struct rte_eth_dev *dev) 533 { 534 struct rte_eth_conf *dev_conf = &dev->data->dev_conf; 535 struct rte_eth_rss_conf *rss_conf = &dev_conf->rx_adv_conf.rss_conf; 536 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; 537 const struct rte_eth_txmode *txmode = &dev_conf->txmode; 538 struct hn_data *hv = dev->data->dev_private; 539 uint64_t unsupported; 540 int i, err, subchan; 541 542 PMD_INIT_FUNC_TRACE(); 543 544 if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) 545 dev_conf->rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; 546 547 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; 548 if (unsupported) { 549 PMD_DRV_LOG(NOTICE, 550 "unsupported TX offload: %#" PRIx64, 551 unsupported); 552 return -EINVAL; 553 } 554 555 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; 556 if (unsupported) { 557 PMD_DRV_LOG(NOTICE, 558 "unsupported RX offload: %#" PRIx64, 559 rxmode->offloads); 560 return -EINVAL; 561 } 562 563 hv->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP); 564 565 err = hn_rndis_conf_offload(hv, txmode->offloads, 566 rxmode->offloads); 567 if (err) { 568 PMD_DRV_LOG(NOTICE, 569 "offload configure failed"); 570 return err; 571 } 572 573 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, 574 dev->data->nb_tx_queues); 575 576 for (i = 0; i < NDIS_HASH_INDCNT; i++) 577 hv->rss_ind[i] = i % hv->num_queues; 578 579 hn_rss_hash_init(hv, rss_conf); 580 581 subchan = hv->num_queues - 1; 582 if (subchan > 0) { 583 err = hn_subchan_configure(hv, subchan); 584 if (err) { 585 PMD_DRV_LOG(NOTICE, 586 "subchannel configuration failed"); 587 return err; 588 } 589 590 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 591 if (err) { 592 PMD_DRV_LOG(NOTICE, 593 "rss disable failed"); 594 return err; 595 } 596 597 err = hn_rndis_conf_rss(hv, 0); 598 if (err) { 599 PMD_DRV_LOG(NOTICE, 600 "initial RSS config failed"); 601 return err; 602 } 603 } 604 605 return hn_vf_configure(dev, dev_conf); 606 } 607 608 static int hn_dev_stats_get(struct rte_eth_dev *dev, 609 struct rte_eth_stats *stats) 610 { 611 unsigned int i; 612 613 hn_vf_stats_get(dev, stats); 614 615 for (i = 0; i < dev->data->nb_tx_queues; i++) { 616 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 617 618 if (!txq) 619 continue; 620 621 stats->opackets += txq->stats.packets; 622 stats->obytes += txq->stats.bytes; 623 stats->oerrors += txq->stats.errors; 624 625 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 626 stats->q_opackets[i] = txq->stats.packets; 627 stats->q_obytes[i] = txq->stats.bytes; 628 } 629 } 630 631 for (i = 0; i < dev->data->nb_rx_queues; i++) { 632 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 633 634 if (!rxq) 635 continue; 636 637 stats->ipackets += rxq->stats.packets; 638 stats->ibytes += rxq->stats.bytes; 639 stats->ierrors += rxq->stats.errors; 640 stats->imissed += rxq->stats.ring_full; 641 642 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 643 stats->q_ipackets[i] = rxq->stats.packets; 644 stats->q_ibytes[i] = rxq->stats.bytes; 645 } 646 } 647 648 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; 649 return 0; 650 } 651 652 static int 653 hn_dev_stats_reset(struct rte_eth_dev *dev) 654 { 655 unsigned int i; 656 657 PMD_INIT_FUNC_TRACE(); 658 659 for (i = 0; i < dev->data->nb_tx_queues; i++) { 660 struct hn_tx_queue *txq = dev->data->tx_queues[i]; 661 662 if (!txq) 663 continue; 664 memset(&txq->stats, 0, sizeof(struct hn_stats)); 665 } 666 667 for (i = 0; i < dev->data->nb_rx_queues; i++) { 668 struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 669 670 if (!rxq) 671 continue; 672 673 memset(&rxq->stats, 0, sizeof(struct hn_stats)); 674 } 675 676 return 0; 677 } 678 679 static int 680 hn_dev_xstats_reset(struct rte_eth_dev *dev) 681 { 682 int ret; 683 684 ret = hn_dev_stats_reset(dev); 685 if (ret != 0) 686 return 0; 687 688 return hn_vf_xstats_reset(dev); 689 } 690 691 static int 692 hn_dev_xstats_count(struct rte_eth_dev *dev) 693 { 694 int ret, count; 695 696 count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings); 697 count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 698 699 ret = hn_vf_xstats_get_names(dev, NULL, 0); 700 if (ret < 0) 701 return ret; 702 703 return count + ret; 704 } 705 706 static int 707 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 708 struct rte_eth_xstat_name *xstats_names, 709 unsigned int limit) 710 { 711 unsigned int i, t, count = 0; 712 int ret; 713 714 if (!xstats_names) 715 return hn_dev_xstats_count(dev); 716 717 /* Note: limit checked in rte_eth_xstats_names() */ 718 for (i = 0; i < dev->data->nb_tx_queues; i++) { 719 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 720 721 if (!txq) 722 continue; 723 724 if (count >= limit) 725 break; 726 727 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 728 snprintf(xstats_names[count++].name, 729 RTE_ETH_XSTATS_NAME_SIZE, 730 "tx_q%u_%s", i, hn_stat_strings[t].name); 731 } 732 733 for (i = 0; i < dev->data->nb_rx_queues; i++) { 734 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 735 736 if (!rxq) 737 continue; 738 739 if (count >= limit) 740 break; 741 742 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 743 snprintf(xstats_names[count++].name, 744 RTE_ETH_XSTATS_NAME_SIZE, 745 "rx_q%u_%s", i, 746 hn_stat_strings[t].name); 747 } 748 749 ret = hn_vf_xstats_get_names(dev, xstats_names + count, 750 limit - count); 751 if (ret < 0) 752 return ret; 753 754 return count + ret; 755 } 756 757 static int 758 hn_dev_xstats_get(struct rte_eth_dev *dev, 759 struct rte_eth_xstat *xstats, 760 unsigned int n) 761 { 762 unsigned int i, t, count = 0; 763 const unsigned int nstats = hn_dev_xstats_count(dev); 764 const char *stats; 765 int ret; 766 767 PMD_INIT_FUNC_TRACE(); 768 769 if (n < nstats) 770 return nstats; 771 772 for (i = 0; i < dev->data->nb_tx_queues; i++) { 773 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 774 775 if (!txq) 776 continue; 777 778 stats = (const char *)&txq->stats; 779 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 780 xstats[count].id = count; 781 xstats[count].value = *(const uint64_t *) 782 (stats + hn_stat_strings[t].offset); 783 } 784 } 785 786 for (i = 0; i < dev->data->nb_rx_queues; i++) { 787 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 788 789 if (!rxq) 790 continue; 791 792 stats = (const char *)&rxq->stats; 793 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 794 xstats[count].id = count; 795 xstats[count].value = *(const uint64_t *) 796 (stats + hn_stat_strings[t].offset); 797 } 798 } 799 800 ret = hn_vf_xstats_get(dev, xstats, count, n); 801 if (ret < 0) 802 return ret; 803 804 return count + ret; 805 } 806 807 static int 808 hn_dev_start(struct rte_eth_dev *dev) 809 { 810 struct hn_data *hv = dev->data->dev_private; 811 int error; 812 813 PMD_INIT_FUNC_TRACE(); 814 815 error = hn_rndis_set_rxfilter(hv, 816 NDIS_PACKET_TYPE_BROADCAST | 817 NDIS_PACKET_TYPE_ALL_MULTICAST | 818 NDIS_PACKET_TYPE_DIRECTED); 819 if (error) 820 return error; 821 822 error = hn_vf_start(dev); 823 if (error) 824 hn_rndis_set_rxfilter(hv, 0); 825 826 /* Initialize Link state */ 827 if (error == 0) 828 hn_dev_link_update(dev, 0); 829 830 return error; 831 } 832 833 static void 834 hn_dev_stop(struct rte_eth_dev *dev) 835 { 836 struct hn_data *hv = dev->data->dev_private; 837 838 PMD_INIT_FUNC_TRACE(); 839 840 hn_rndis_set_rxfilter(hv, 0); 841 hn_vf_stop(dev); 842 } 843 844 static void 845 hn_dev_close(struct rte_eth_dev *dev) 846 { 847 PMD_INIT_FUNC_TRACE(); 848 849 hn_vf_close(dev); 850 hn_dev_free_queues(dev); 851 } 852 853 static const struct eth_dev_ops hn_eth_dev_ops = { 854 .dev_configure = hn_dev_configure, 855 .dev_start = hn_dev_start, 856 .dev_stop = hn_dev_stop, 857 .dev_close = hn_dev_close, 858 .dev_infos_get = hn_dev_info_get, 859 .dev_supported_ptypes_get = hn_vf_supported_ptypes, 860 .promiscuous_enable = hn_dev_promiscuous_enable, 861 .promiscuous_disable = hn_dev_promiscuous_disable, 862 .allmulticast_enable = hn_dev_allmulticast_enable, 863 .allmulticast_disable = hn_dev_allmulticast_disable, 864 .set_mc_addr_list = hn_dev_mc_addr_list, 865 .reta_update = hn_rss_reta_update, 866 .reta_query = hn_rss_reta_query, 867 .rss_hash_update = hn_rss_hash_update, 868 .rss_hash_conf_get = hn_rss_hash_conf_get, 869 .tx_queue_setup = hn_dev_tx_queue_setup, 870 .tx_queue_release = hn_dev_tx_queue_release, 871 .tx_done_cleanup = hn_dev_tx_done_cleanup, 872 .rx_queue_setup = hn_dev_rx_queue_setup, 873 .rx_queue_release = hn_dev_rx_queue_release, 874 .link_update = hn_dev_link_update, 875 .stats_get = hn_dev_stats_get, 876 .stats_reset = hn_dev_stats_reset, 877 .xstats_get = hn_dev_xstats_get, 878 .xstats_get_names = hn_dev_xstats_get_names, 879 .xstats_reset = hn_dev_xstats_reset, 880 }; 881 882 /* 883 * Setup connection between PMD and kernel. 884 */ 885 static int 886 hn_attach(struct hn_data *hv, unsigned int mtu) 887 { 888 int error; 889 890 /* Attach NVS */ 891 error = hn_nvs_attach(hv, mtu); 892 if (error) 893 goto failed_nvs; 894 895 /* Attach RNDIS */ 896 error = hn_rndis_attach(hv); 897 if (error) 898 goto failed_rndis; 899 900 /* 901 * NOTE: 902 * Under certain conditions on certain versions of Hyper-V, 903 * the RNDIS rxfilter is _not_ zero on the hypervisor side 904 * after the successful RNDIS initialization. 905 */ 906 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 907 return 0; 908 failed_rndis: 909 hn_nvs_detach(hv); 910 failed_nvs: 911 return error; 912 } 913 914 static void 915 hn_detach(struct hn_data *hv) 916 { 917 hn_nvs_detach(hv); 918 hn_rndis_detach(hv); 919 } 920 921 static int 922 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 923 { 924 struct hn_data *hv = eth_dev->data->dev_private; 925 struct rte_device *device = eth_dev->device; 926 struct rte_vmbus_device *vmbus; 927 unsigned int rxr_cnt; 928 int err, max_chan; 929 930 PMD_INIT_FUNC_TRACE(); 931 932 vmbus = container_of(device, struct rte_vmbus_device, device); 933 eth_dev->dev_ops = &hn_eth_dev_ops; 934 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 935 eth_dev->rx_pkt_burst = &hn_recv_pkts; 936 937 /* Since Hyper-V only supports one MAC address, just use local data */ 938 eth_dev->data->mac_addrs = &hv->mac_addr; 939 940 /* 941 * for secondary processes, we don't initialize any further as primary 942 * has already done this work. 943 */ 944 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 945 return 0; 946 947 hv->vmbus = vmbus; 948 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; 949 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; 950 hv->port_id = eth_dev->data->port_id; 951 hv->latency = HN_CHAN_LATENCY_NS; 952 hv->max_queues = 1; 953 rte_spinlock_init(&hv->vf_lock); 954 hv->vf_port = HN_INVALID_PORT; 955 956 err = hn_parse_args(eth_dev); 957 if (err) 958 return err; 959 960 strlcpy(hv->owner.name, eth_dev->device->name, 961 RTE_ETH_MAX_OWNER_NAME_LEN); 962 err = rte_eth_dev_owner_new(&hv->owner.id); 963 if (err) { 964 PMD_INIT_LOG(ERR, "Can not get owner id"); 965 return err; 966 } 967 968 /* Initialize primary channel input for control operations */ 969 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 970 if (err) 971 return err; 972 973 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 974 975 hv->primary = hn_rx_queue_alloc(hv, 0, 976 eth_dev->device->numa_node); 977 978 if (!hv->primary) 979 return -ENOMEM; 980 981 err = hn_attach(hv, RTE_ETHER_MTU); 982 if (err) 983 goto failed; 984 985 err = hn_tx_pool_init(eth_dev); 986 if (err) 987 goto failed; 988 989 err = hn_rndis_get_eaddr(hv, hv->mac_addr.addr_bytes); 990 if (err) 991 goto failed; 992 993 /* Multi queue requires later versions of windows server */ 994 if (hv->nvs_ver < NVS_VERSION_5) 995 return 0; 996 997 max_chan = rte_vmbus_max_channels(vmbus); 998 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 999 if (max_chan <= 0) 1000 goto failed; 1001 1002 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 1003 rxr_cnt = 1; 1004 1005 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 1006 1007 /* If VF was reported but not added, do it now */ 1008 if (hv->vf_present && !hn_vf_attached(hv)) { 1009 PMD_INIT_LOG(DEBUG, "Adding VF device"); 1010 1011 err = hn_vf_add(eth_dev, hv); 1012 if (err) 1013 hv->vf_present = 0; 1014 } 1015 1016 return 0; 1017 1018 failed: 1019 PMD_INIT_LOG(NOTICE, "device init failed"); 1020 1021 hn_tx_pool_uninit(eth_dev); 1022 hn_detach(hv); 1023 return err; 1024 } 1025 1026 static int 1027 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 1028 { 1029 struct hn_data *hv = eth_dev->data->dev_private; 1030 int ret; 1031 1032 PMD_INIT_FUNC_TRACE(); 1033 1034 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 1035 return 0; 1036 1037 hn_dev_stop(eth_dev); 1038 hn_dev_close(eth_dev); 1039 1040 eth_dev->dev_ops = NULL; 1041 eth_dev->tx_pkt_burst = NULL; 1042 eth_dev->rx_pkt_burst = NULL; 1043 1044 hn_detach(hv); 1045 hn_tx_pool_uninit(eth_dev); 1046 rte_vmbus_chan_close(hv->primary->chan); 1047 rte_free(hv->primary); 1048 ret = rte_eth_dev_owner_delete(hv->owner.id); 1049 if (ret != 0) 1050 return ret; 1051 1052 return 0; 1053 } 1054 1055 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 1056 struct rte_vmbus_device *dev) 1057 { 1058 struct rte_eth_dev *eth_dev; 1059 int ret; 1060 1061 PMD_INIT_FUNC_TRACE(); 1062 1063 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 1064 if (!eth_dev) 1065 return -ENOMEM; 1066 1067 ret = eth_hn_dev_init(eth_dev); 1068 if (ret) 1069 eth_dev_vmbus_release(eth_dev); 1070 else 1071 rte_eth_dev_probing_finish(eth_dev); 1072 1073 return ret; 1074 } 1075 1076 static int eth_hn_remove(struct rte_vmbus_device *dev) 1077 { 1078 struct rte_eth_dev *eth_dev; 1079 int ret; 1080 1081 PMD_INIT_FUNC_TRACE(); 1082 1083 eth_dev = rte_eth_dev_allocated(dev->device.name); 1084 if (!eth_dev) 1085 return -ENODEV; 1086 1087 ret = eth_hn_dev_uninit(eth_dev); 1088 if (ret) 1089 return ret; 1090 1091 eth_dev_vmbus_release(eth_dev); 1092 return 0; 1093 } 1094 1095 /* Network device GUID */ 1096 static const rte_uuid_t hn_net_ids[] = { 1097 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 1098 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 1099 { 0 } 1100 }; 1101 1102 static struct rte_vmbus_driver rte_netvsc_pmd = { 1103 .id_table = hn_net_ids, 1104 .probe = eth_hn_probe, 1105 .remove = eth_hn_remove, 1106 }; 1107 1108 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 1109 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 1110 1111 RTE_INIT(hn_init_log) 1112 { 1113 hn_logtype_init = rte_log_register("pmd.net.netvsc.init"); 1114 if (hn_logtype_init >= 0) 1115 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE); 1116 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver"); 1117 if (hn_logtype_driver >= 0) 1118 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE); 1119 } 1120