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 #include <dirent.h> 13 #include <net/if.h> 14 #include <net/if_arp.h> 15 #include <netinet/in.h> 16 #include <sys/ioctl.h> 17 18 #include <rte_ethdev.h> 19 #include <rte_memcpy.h> 20 #include <rte_string_fns.h> 21 #include <rte_memzone.h> 22 #include <rte_devargs.h> 23 #include <rte_malloc.h> 24 #include <rte_kvargs.h> 25 #include <rte_atomic.h> 26 #include <rte_branch_prediction.h> 27 #include <rte_ether.h> 28 #include <ethdev_driver.h> 29 #include <rte_cycles.h> 30 #include <rte_errno.h> 31 #include <rte_memory.h> 32 #include <rte_eal.h> 33 #include <dev_driver.h> 34 #include <bus_driver.h> 35 #include <bus_vmbus_driver.h> 36 #include <rte_alarm.h> 37 38 #include "hn_logs.h" 39 #include "hn_var.h" 40 #include "hn_rndis.h" 41 #include "hn_nvs.h" 42 #include "ndis.h" 43 44 #define HN_TX_OFFLOAD_CAPS (RTE_ETH_TX_OFFLOAD_IPV4_CKSUM | \ 45 RTE_ETH_TX_OFFLOAD_TCP_CKSUM | \ 46 RTE_ETH_TX_OFFLOAD_UDP_CKSUM | \ 47 RTE_ETH_TX_OFFLOAD_TCP_TSO | \ 48 RTE_ETH_TX_OFFLOAD_MULTI_SEGS | \ 49 RTE_ETH_TX_OFFLOAD_VLAN_INSERT) 50 51 #define HN_RX_OFFLOAD_CAPS (RTE_ETH_RX_OFFLOAD_CHECKSUM | \ 52 RTE_ETH_RX_OFFLOAD_VLAN_STRIP | \ 53 RTE_ETH_RX_OFFLOAD_RSS_HASH) 54 55 #define NETVSC_ARG_LATENCY "latency" 56 #define NETVSC_ARG_RXBREAK "rx_copybreak" 57 #define NETVSC_ARG_TXBREAK "tx_copybreak" 58 #define NETVSC_ARG_RX_EXTMBUF_ENABLE "rx_extmbuf_enable" 59 60 /* The max number of retry when hot adding a VF device */ 61 #define NETVSC_MAX_HOTADD_RETRY 10 62 63 struct hn_xstats_name_off { 64 char name[RTE_ETH_XSTATS_NAME_SIZE]; 65 unsigned int offset; 66 }; 67 68 static const struct hn_xstats_name_off hn_stat_strings[] = { 69 { "good_packets", offsetof(struct hn_stats, packets) }, 70 { "good_bytes", offsetof(struct hn_stats, bytes) }, 71 { "errors", offsetof(struct hn_stats, errors) }, 72 { "ring full", offsetof(struct hn_stats, ring_full) }, 73 { "channel full", offsetof(struct hn_stats, channel_full) }, 74 { "multicast_packets", offsetof(struct hn_stats, multicast) }, 75 { "broadcast_packets", offsetof(struct hn_stats, broadcast) }, 76 { "undersize_packets", offsetof(struct hn_stats, size_bins[0]) }, 77 { "size_64_packets", offsetof(struct hn_stats, size_bins[1]) }, 78 { "size_65_127_packets", offsetof(struct hn_stats, size_bins[2]) }, 79 { "size_128_255_packets", offsetof(struct hn_stats, size_bins[3]) }, 80 { "size_256_511_packets", offsetof(struct hn_stats, size_bins[4]) }, 81 { "size_512_1023_packets", offsetof(struct hn_stats, size_bins[5]) }, 82 { "size_1024_1518_packets", offsetof(struct hn_stats, size_bins[6]) }, 83 { "size_1519_max_packets", offsetof(struct hn_stats, size_bins[7]) }, 84 }; 85 86 /* The default RSS key. 87 * This value is the same as MLX5 so that flows will be 88 * received on same path for both VF and synthetic NIC. 89 */ 90 static const uint8_t rss_default_key[NDIS_HASH_KEYSIZE_TOEPLITZ] = { 91 0x2c, 0xc6, 0x81, 0xd1, 0x5b, 0xdb, 0xf4, 0xf7, 92 0xfc, 0xa2, 0x83, 0x19, 0xdb, 0x1a, 0x3e, 0x94, 93 0x6b, 0x9e, 0x38, 0xd9, 0x2c, 0x9c, 0x03, 0xd1, 94 0xad, 0x99, 0x44, 0xa7, 0xd9, 0x56, 0x3d, 0x59, 95 0x06, 0x3c, 0x25, 0xf3, 0xfc, 0x1f, 0xdc, 0x2a, 96 }; 97 98 static struct rte_eth_dev * 99 eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size) 100 { 101 struct rte_eth_dev *eth_dev; 102 const char *name; 103 104 if (!dev) 105 return NULL; 106 107 name = dev->device.name; 108 109 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 110 eth_dev = rte_eth_dev_allocate(name); 111 if (!eth_dev) { 112 PMD_DRV_LOG(NOTICE, "can not allocate rte ethdev"); 113 return NULL; 114 } 115 116 if (private_data_size) { 117 eth_dev->data->dev_private = 118 rte_zmalloc_socket(name, private_data_size, 119 RTE_CACHE_LINE_SIZE, dev->device.numa_node); 120 if (!eth_dev->data->dev_private) { 121 PMD_DRV_LOG(NOTICE, "can not allocate driver data"); 122 rte_eth_dev_release_port(eth_dev); 123 return NULL; 124 } 125 } 126 } else { 127 eth_dev = rte_eth_dev_attach_secondary(name); 128 if (!eth_dev) { 129 PMD_DRV_LOG(NOTICE, "can not attach secondary"); 130 return NULL; 131 } 132 } 133 134 eth_dev->device = &dev->device; 135 136 /* interrupt is simulated */ 137 rte_intr_type_set(dev->intr_handle, RTE_INTR_HANDLE_EXT); 138 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC; 139 eth_dev->intr_handle = dev->intr_handle; 140 141 return eth_dev; 142 } 143 144 static void 145 eth_dev_vmbus_release(struct rte_eth_dev *eth_dev) 146 { 147 /* free ether device */ 148 rte_eth_dev_release_port(eth_dev); 149 150 eth_dev->device = NULL; 151 eth_dev->intr_handle = NULL; 152 } 153 154 static int hn_set_parameter(const char *key, const char *value, void *opaque) 155 { 156 struct hn_data *hv = opaque; 157 char *endp = NULL; 158 unsigned long v; 159 160 v = strtoul(value, &endp, 0); 161 if (*value == '\0' || *endp != '\0') { 162 PMD_DRV_LOG(ERR, "invalid parameter %s=%s", key, value); 163 return -EINVAL; 164 } 165 166 if (!strcmp(key, NETVSC_ARG_LATENCY)) { 167 /* usec to nsec */ 168 hv->latency = v * 1000; 169 PMD_DRV_LOG(DEBUG, "set latency %u usec", hv->latency); 170 } else if (!strcmp(key, NETVSC_ARG_RXBREAK)) { 171 hv->rx_copybreak = v; 172 PMD_DRV_LOG(DEBUG, "rx copy break set to %u", 173 hv->rx_copybreak); 174 } else if (!strcmp(key, NETVSC_ARG_TXBREAK)) { 175 hv->tx_copybreak = v; 176 PMD_DRV_LOG(DEBUG, "tx copy break set to %u", 177 hv->tx_copybreak); 178 } else if (!strcmp(key, NETVSC_ARG_RX_EXTMBUF_ENABLE)) { 179 hv->rx_extmbuf_enable = v; 180 PMD_DRV_LOG(DEBUG, "rx extmbuf enable set to %u", 181 hv->rx_extmbuf_enable); 182 } 183 184 return 0; 185 } 186 187 /* Parse device arguments */ 188 static int hn_parse_args(const struct rte_eth_dev *dev) 189 { 190 struct hn_data *hv = dev->data->dev_private; 191 struct rte_devargs *devargs = dev->device->devargs; 192 static const char * const valid_keys[] = { 193 NETVSC_ARG_LATENCY, 194 NETVSC_ARG_RXBREAK, 195 NETVSC_ARG_TXBREAK, 196 NETVSC_ARG_RX_EXTMBUF_ENABLE, 197 NULL 198 }; 199 struct rte_kvargs *kvlist; 200 int ret; 201 202 if (!devargs) 203 return 0; 204 205 PMD_INIT_LOG(DEBUG, "device args %s %s", 206 devargs->name, devargs->args); 207 208 kvlist = rte_kvargs_parse(devargs->args, valid_keys); 209 if (!kvlist) { 210 PMD_DRV_LOG(ERR, "invalid parameters"); 211 return -EINVAL; 212 } 213 214 ret = rte_kvargs_process(kvlist, NULL, hn_set_parameter, hv); 215 rte_kvargs_free(kvlist); 216 217 return ret; 218 } 219 220 /* Update link status. 221 * Note: the DPDK definition of "wait_to_complete" 222 * means block this call until link is up. 223 * which is not worth supporting. 224 */ 225 int 226 hn_dev_link_update(struct rte_eth_dev *dev, 227 int wait_to_complete __rte_unused) 228 { 229 struct hn_data *hv = dev->data->dev_private; 230 struct rte_eth_link link, old; 231 int error; 232 233 old = dev->data->dev_link; 234 235 error = hn_rndis_get_linkstatus(hv); 236 if (error) 237 return error; 238 239 hn_rndis_get_linkspeed(hv); 240 241 link = (struct rte_eth_link) { 242 .link_duplex = RTE_ETH_LINK_FULL_DUPLEX, 243 .link_autoneg = RTE_ETH_LINK_SPEED_FIXED, 244 .link_speed = hv->link_speed / 10000, 245 }; 246 247 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED) 248 link.link_status = RTE_ETH_LINK_UP; 249 else 250 link.link_status = RTE_ETH_LINK_DOWN; 251 252 if (old.link_status == link.link_status) 253 return 0; 254 255 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id, 256 (link.link_status == RTE_ETH_LINK_UP) ? "up" : "down"); 257 258 return rte_eth_linkstatus_set(dev, &link); 259 } 260 261 static int hn_dev_info_get(struct rte_eth_dev *dev, 262 struct rte_eth_dev_info *dev_info) 263 { 264 struct hn_data *hv = dev->data->dev_private; 265 int rc; 266 267 dev_info->speed_capa = RTE_ETH_LINK_SPEED_10G; 268 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE; 269 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN; 270 dev_info->max_mac_addrs = 1; 271 272 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ; 273 dev_info->flow_type_rss_offloads = hv->rss_offloads; 274 dev_info->reta_size = RTE_ETH_RSS_RETA_SIZE_128; 275 276 dev_info->max_rx_queues = hv->max_queues; 277 dev_info->max_tx_queues = hv->max_queues; 278 279 dev_info->tx_desc_lim.nb_min = 1; 280 dev_info->tx_desc_lim.nb_max = 4096; 281 282 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 283 return 0; 284 285 /* fills in rx and tx offload capability */ 286 rc = hn_rndis_get_offload(hv, dev_info); 287 if (rc != 0) 288 return rc; 289 290 /* merges the offload and queues of vf */ 291 return hn_vf_info_get(hv, dev_info); 292 } 293 294 static int hn_rss_reta_update(struct rte_eth_dev *dev, 295 struct rte_eth_rss_reta_entry64 *reta_conf, 296 uint16_t reta_size) 297 { 298 struct hn_data *hv = dev->data->dev_private; 299 unsigned int i; 300 int err; 301 302 PMD_INIT_FUNC_TRACE(); 303 304 if (reta_size != NDIS_HASH_INDCNT) { 305 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 306 return -EINVAL; 307 } 308 309 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 310 uint16_t idx = i / RTE_ETH_RETA_GROUP_SIZE; 311 uint16_t shift = i % RTE_ETH_RETA_GROUP_SIZE; 312 uint64_t mask = (uint64_t)1 << shift; 313 314 if (reta_conf[idx].mask & mask) 315 hv->rss_ind[i] = reta_conf[idx].reta[shift]; 316 } 317 318 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 319 if (err) { 320 PMD_DRV_LOG(NOTICE, 321 "rss disable failed"); 322 return err; 323 } 324 325 err = hn_rndis_conf_rss(hv, 0); 326 if (err) { 327 PMD_DRV_LOG(NOTICE, 328 "reta reconfig failed"); 329 return err; 330 } 331 332 return hn_vf_reta_hash_update(dev, reta_conf, reta_size); 333 } 334 335 static int hn_rss_reta_query(struct rte_eth_dev *dev, 336 struct rte_eth_rss_reta_entry64 *reta_conf, 337 uint16_t reta_size) 338 { 339 struct hn_data *hv = dev->data->dev_private; 340 unsigned int i; 341 342 PMD_INIT_FUNC_TRACE(); 343 344 if (reta_size != NDIS_HASH_INDCNT) { 345 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 346 return -EINVAL; 347 } 348 349 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 350 uint16_t idx = i / RTE_ETH_RETA_GROUP_SIZE; 351 uint16_t shift = i % RTE_ETH_RETA_GROUP_SIZE; 352 uint64_t mask = (uint64_t)1 << shift; 353 354 if (reta_conf[idx].mask & mask) 355 reta_conf[idx].reta[shift] = hv->rss_ind[i]; 356 } 357 return 0; 358 } 359 360 static void hn_rss_hash_init(struct hn_data *hv, 361 const struct rte_eth_rss_conf *rss_conf) 362 { 363 /* Convert from DPDK RSS hash flags to NDIS hash flags */ 364 hv->rss_hash = NDIS_HASH_FUNCTION_TOEPLITZ; 365 366 if (rss_conf->rss_hf & RTE_ETH_RSS_IPV4) 367 hv->rss_hash |= NDIS_HASH_IPV4; 368 if (rss_conf->rss_hf & RTE_ETH_RSS_NONFRAG_IPV4_TCP) 369 hv->rss_hash |= NDIS_HASH_TCP_IPV4; 370 if (rss_conf->rss_hf & RTE_ETH_RSS_IPV6) 371 hv->rss_hash |= NDIS_HASH_IPV6; 372 if (rss_conf->rss_hf & RTE_ETH_RSS_IPV6_EX) 373 hv->rss_hash |= NDIS_HASH_IPV6_EX; 374 if (rss_conf->rss_hf & RTE_ETH_RSS_NONFRAG_IPV6_TCP) 375 hv->rss_hash |= NDIS_HASH_TCP_IPV6; 376 if (rss_conf->rss_hf & RTE_ETH_RSS_IPV6_TCP_EX) 377 hv->rss_hash |= NDIS_HASH_TCP_IPV6_EX; 378 379 memcpy(hv->rss_key, rss_conf->rss_key ? : rss_default_key, 380 NDIS_HASH_KEYSIZE_TOEPLITZ); 381 } 382 383 static int hn_rss_hash_update(struct rte_eth_dev *dev, 384 struct rte_eth_rss_conf *rss_conf) 385 { 386 struct hn_data *hv = dev->data->dev_private; 387 int err; 388 389 PMD_INIT_FUNC_TRACE(); 390 391 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 392 if (err) { 393 PMD_DRV_LOG(NOTICE, 394 "rss disable failed"); 395 return err; 396 } 397 398 hn_rss_hash_init(hv, rss_conf); 399 400 if (rss_conf->rss_hf != 0) { 401 err = hn_rndis_conf_rss(hv, 0); 402 if (err) { 403 PMD_DRV_LOG(NOTICE, 404 "rss reconfig failed (RSS disabled)"); 405 return err; 406 } 407 } 408 409 return hn_vf_rss_hash_update(dev, rss_conf); 410 } 411 412 static int hn_rss_hash_conf_get(struct rte_eth_dev *dev, 413 struct rte_eth_rss_conf *rss_conf) 414 { 415 struct hn_data *hv = dev->data->dev_private; 416 417 PMD_INIT_FUNC_TRACE(); 418 419 if (hv->ndis_ver < NDIS_VERSION_6_20) { 420 PMD_DRV_LOG(DEBUG, "RSS not supported on this host"); 421 return -EOPNOTSUPP; 422 } 423 424 rss_conf->rss_key_len = NDIS_HASH_KEYSIZE_TOEPLITZ; 425 if (rss_conf->rss_key) 426 memcpy(rss_conf->rss_key, hv->rss_key, 427 NDIS_HASH_KEYSIZE_TOEPLITZ); 428 429 rss_conf->rss_hf = 0; 430 if (hv->rss_hash & NDIS_HASH_IPV4) 431 rss_conf->rss_hf |= RTE_ETH_RSS_IPV4; 432 433 if (hv->rss_hash & NDIS_HASH_TCP_IPV4) 434 rss_conf->rss_hf |= RTE_ETH_RSS_NONFRAG_IPV4_TCP; 435 436 if (hv->rss_hash & NDIS_HASH_IPV6) 437 rss_conf->rss_hf |= RTE_ETH_RSS_IPV6; 438 439 if (hv->rss_hash & NDIS_HASH_IPV6_EX) 440 rss_conf->rss_hf |= RTE_ETH_RSS_IPV6_EX; 441 442 if (hv->rss_hash & NDIS_HASH_TCP_IPV6) 443 rss_conf->rss_hf |= RTE_ETH_RSS_NONFRAG_IPV6_TCP; 444 445 if (hv->rss_hash & NDIS_HASH_TCP_IPV6_EX) 446 rss_conf->rss_hf |= RTE_ETH_RSS_IPV6_TCP_EX; 447 448 return 0; 449 } 450 451 static int 452 hn_dev_promiscuous_enable(struct rte_eth_dev *dev) 453 { 454 struct hn_data *hv = dev->data->dev_private; 455 456 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); 457 return hn_vf_promiscuous_enable(dev); 458 } 459 460 static int 461 hn_dev_promiscuous_disable(struct rte_eth_dev *dev) 462 { 463 struct hn_data *hv = dev->data->dev_private; 464 uint32_t filter; 465 466 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; 467 if (dev->data->all_multicast) 468 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; 469 hn_rndis_set_rxfilter(hv, filter); 470 return hn_vf_promiscuous_disable(dev); 471 } 472 473 static int 474 hn_dev_allmulticast_enable(struct rte_eth_dev *dev) 475 { 476 struct hn_data *hv = dev->data->dev_private; 477 478 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 479 NDIS_PACKET_TYPE_ALL_MULTICAST | 480 NDIS_PACKET_TYPE_BROADCAST); 481 return hn_vf_allmulticast_enable(dev); 482 } 483 484 static int 485 hn_dev_allmulticast_disable(struct rte_eth_dev *dev) 486 { 487 struct hn_data *hv = dev->data->dev_private; 488 489 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 490 NDIS_PACKET_TYPE_BROADCAST); 491 return hn_vf_allmulticast_disable(dev); 492 } 493 494 static int 495 hn_dev_mc_addr_list(struct rte_eth_dev *dev, 496 struct rte_ether_addr *mc_addr_set, 497 uint32_t nb_mc_addr) 498 { 499 /* No filtering on the synthetic path, but can do it on VF */ 500 return hn_vf_mc_addr_list(dev, mc_addr_set, nb_mc_addr); 501 } 502 503 /* Setup shared rx/tx queue data */ 504 static int hn_subchan_configure(struct hn_data *hv, 505 uint32_t subchan) 506 { 507 struct vmbus_channel *primary = hn_primary_chan(hv); 508 int err; 509 unsigned int retry = 0; 510 511 PMD_DRV_LOG(DEBUG, 512 "open %u subchannels", subchan); 513 514 /* Send create sub channels command */ 515 err = hn_nvs_alloc_subchans(hv, &subchan); 516 if (err) 517 return err; 518 519 while (subchan > 0) { 520 struct vmbus_channel *new_sc; 521 uint16_t chn_index; 522 523 err = rte_vmbus_subchan_open(primary, &new_sc); 524 if (err == -ENOENT && ++retry < 1000) { 525 /* This can happen if not ready yet */ 526 rte_delay_ms(10); 527 continue; 528 } 529 530 if (err) { 531 PMD_DRV_LOG(ERR, 532 "open subchannel failed: %d", err); 533 return err; 534 } 535 536 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); 537 538 retry = 0; 539 chn_index = rte_vmbus_sub_channel_index(new_sc); 540 if (chn_index == 0 || chn_index > hv->max_queues) { 541 PMD_DRV_LOG(ERR, 542 "Invalid subchannel offermsg channel %u", 543 chn_index); 544 return -EIO; 545 } 546 547 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); 548 hv->channels[chn_index] = new_sc; 549 --subchan; 550 } 551 552 return err; 553 } 554 555 static void netvsc_hotplug_retry(void *args) 556 { 557 int ret; 558 struct hv_hotadd_context *hot_ctx = args; 559 struct hn_data *hv = hot_ctx->hv; 560 struct rte_eth_dev *dev = &rte_eth_devices[hv->port_id]; 561 struct rte_devargs *d = &hot_ctx->da; 562 char buf[256]; 563 564 DIR *di; 565 struct dirent *dir; 566 struct ifreq req; 567 struct rte_ether_addr eth_addr; 568 int s; 569 570 PMD_DRV_LOG(DEBUG, "%s: retry count %d", 571 __func__, hot_ctx->eal_hot_plug_retry); 572 573 if (hot_ctx->eal_hot_plug_retry++ > NETVSC_MAX_HOTADD_RETRY) { 574 PMD_DRV_LOG(NOTICE, "Failed to parse PCI device retry=%d", 575 hot_ctx->eal_hot_plug_retry); 576 goto free_hotadd_ctx; 577 } 578 579 snprintf(buf, sizeof(buf), "/sys/bus/pci/devices/%s/net", d->name); 580 di = opendir(buf); 581 if (!di) { 582 PMD_DRV_LOG(DEBUG, "%s: can't open directory %s, " 583 "retrying in 1 second", __func__, buf); 584 goto retry; 585 } 586 587 while ((dir = readdir(di))) { 588 /* Skip . and .. directories */ 589 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) 590 continue; 591 592 /* trying to get mac address if this is a network device*/ 593 s = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); 594 if (s == -1) { 595 PMD_DRV_LOG(ERR, "Failed to create socket errno %d", 596 errno); 597 break; 598 } 599 strlcpy(req.ifr_name, dir->d_name, sizeof(req.ifr_name)); 600 ret = ioctl(s, SIOCGIFHWADDR, &req); 601 close(s); 602 if (ret == -1) { 603 PMD_DRV_LOG(ERR, 604 "Failed to send SIOCGIFHWADDR for device %s", 605 dir->d_name); 606 break; 607 } 608 if (req.ifr_hwaddr.sa_family != ARPHRD_ETHER) { 609 closedir(di); 610 goto free_hotadd_ctx; 611 } 612 memcpy(eth_addr.addr_bytes, req.ifr_hwaddr.sa_data, 613 RTE_DIM(eth_addr.addr_bytes)); 614 615 if (rte_is_same_ether_addr(ð_addr, dev->data->mac_addrs)) { 616 PMD_DRV_LOG(NOTICE, 617 "Found matching MAC address, adding device %s network name %s", 618 d->name, dir->d_name); 619 620 /* If this device has been hot removed from this 621 * parent device, restore its args. 622 */ 623 ret = rte_eal_hotplug_add(d->bus->name, d->name, 624 hv->vf_devargs ? 625 hv->vf_devargs : ""); 626 if (ret) { 627 PMD_DRV_LOG(ERR, 628 "Failed to add PCI device %s", 629 d->name); 630 break; 631 } 632 } 633 /* When the code reaches here, we either have already added 634 * the device, or its MAC address did not match. 635 */ 636 closedir(di); 637 goto free_hotadd_ctx; 638 } 639 closedir(di); 640 retry: 641 /* The device is still being initialized, retry after 1 second */ 642 rte_eal_alarm_set(1000000, netvsc_hotplug_retry, hot_ctx); 643 return; 644 645 free_hotadd_ctx: 646 rte_spinlock_lock(&hv->hotadd_lock); 647 LIST_REMOVE(hot_ctx, list); 648 rte_spinlock_unlock(&hv->hotadd_lock); 649 650 rte_free(hot_ctx); 651 } 652 653 static void 654 netvsc_hotadd_callback(const char *device_name, enum rte_dev_event_type type, 655 void *arg) 656 { 657 struct hn_data *hv = arg; 658 struct hv_hotadd_context *hot_ctx; 659 struct rte_devargs *d; 660 int ret; 661 662 PMD_DRV_LOG(INFO, "Device notification type=%d device_name=%s", 663 type, device_name); 664 665 switch (type) { 666 case RTE_DEV_EVENT_ADD: 667 /* if we already has a VF, don't check on hot add */ 668 if (hv->vf_ctx.vf_state > vf_removed) 669 break; 670 671 hot_ctx = rte_zmalloc("NETVSC-HOTADD", sizeof(*hot_ctx), 672 rte_mem_page_size()); 673 674 if (!hot_ctx) { 675 PMD_DRV_LOG(ERR, "Failed to allocate hotadd context"); 676 return; 677 } 678 679 hot_ctx->hv = hv; 680 d = &hot_ctx->da; 681 682 ret = rte_devargs_parse(d, device_name); 683 if (ret) { 684 PMD_DRV_LOG(ERR, 685 "devargs parsing failed ret=%d", ret); 686 goto free_ctx; 687 } 688 689 if (!strcmp(d->bus->name, "pci")) { 690 /* Start the process of figuring out if this 691 * PCI device is a VF device 692 */ 693 rte_spinlock_lock(&hv->hotadd_lock); 694 LIST_INSERT_HEAD(&hv->hotadd_list, hot_ctx, list); 695 rte_spinlock_unlock(&hv->hotadd_lock); 696 rte_eal_alarm_set(1000000, netvsc_hotplug_retry, hot_ctx); 697 return; 698 } 699 700 /* We will switch to VF on RDNIS configure message 701 * sent from VSP 702 */ 703 free_ctx: 704 rte_free(hot_ctx); 705 break; 706 707 default: 708 break; 709 } 710 } 711 712 static int hn_dev_configure(struct rte_eth_dev *dev) 713 { 714 struct rte_eth_conf *dev_conf = &dev->data->dev_conf; 715 struct rte_eth_rss_conf *rss_conf = &dev_conf->rx_adv_conf.rss_conf; 716 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; 717 const struct rte_eth_txmode *txmode = &dev_conf->txmode; 718 struct hn_data *hv = dev->data->dev_private; 719 uint64_t unsupported; 720 int i, err, subchan; 721 722 PMD_INIT_FUNC_TRACE(); 723 724 if (dev_conf->rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) 725 dev_conf->rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH; 726 727 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; 728 if (unsupported) { 729 PMD_DRV_LOG(NOTICE, 730 "unsupported TX offload: %#" PRIx64, 731 unsupported); 732 return -EINVAL; 733 } 734 735 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; 736 if (unsupported) { 737 PMD_DRV_LOG(NOTICE, 738 "unsupported RX offload: %#" PRIx64, 739 rxmode->offloads); 740 return -EINVAL; 741 } 742 743 hv->vlan_strip = !!(rxmode->offloads & RTE_ETH_RX_OFFLOAD_VLAN_STRIP); 744 745 err = hn_rndis_conf_offload(hv, txmode->offloads, 746 rxmode->offloads); 747 if (err) { 748 PMD_DRV_LOG(NOTICE, 749 "offload configure failed"); 750 return err; 751 } 752 753 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, 754 dev->data->nb_tx_queues); 755 756 for (i = 0; i < NDIS_HASH_INDCNT; i++) 757 hv->rss_ind[i] = i % dev->data->nb_rx_queues; 758 759 hn_rss_hash_init(hv, rss_conf); 760 761 subchan = hv->num_queues - 1; 762 if (subchan > 0) { 763 err = hn_subchan_configure(hv, subchan); 764 if (err) { 765 PMD_DRV_LOG(NOTICE, 766 "subchannel configuration failed"); 767 return err; 768 } 769 770 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 771 if (err) { 772 PMD_DRV_LOG(NOTICE, 773 "rss disable failed"); 774 return err; 775 } 776 777 if (rss_conf->rss_hf != 0) { 778 err = hn_rndis_conf_rss(hv, 0); 779 if (err) { 780 PMD_DRV_LOG(NOTICE, 781 "initial RSS config failed"); 782 return err; 783 } 784 } 785 } 786 787 return hn_vf_configure_locked(dev, dev_conf); 788 } 789 790 static int hn_dev_stats_get(struct rte_eth_dev *dev, 791 struct rte_eth_stats *stats) 792 { 793 unsigned int i; 794 795 hn_vf_stats_get(dev, stats); 796 797 for (i = 0; i < dev->data->nb_tx_queues; i++) { 798 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 799 800 if (!txq) 801 continue; 802 803 stats->opackets += txq->stats.packets; 804 stats->obytes += txq->stats.bytes; 805 stats->oerrors += txq->stats.errors; 806 807 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 808 stats->q_opackets[i] = txq->stats.packets; 809 stats->q_obytes[i] = txq->stats.bytes; 810 } 811 } 812 813 for (i = 0; i < dev->data->nb_rx_queues; i++) { 814 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 815 816 if (!rxq) 817 continue; 818 819 stats->ipackets += rxq->stats.packets; 820 stats->ibytes += rxq->stats.bytes; 821 stats->ierrors += rxq->stats.errors; 822 stats->imissed += rxq->stats.ring_full; 823 824 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 825 stats->q_ipackets[i] = rxq->stats.packets; 826 stats->q_ibytes[i] = rxq->stats.bytes; 827 } 828 } 829 830 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; 831 return 0; 832 } 833 834 static int 835 hn_dev_stats_reset(struct rte_eth_dev *dev) 836 { 837 unsigned int i; 838 839 PMD_INIT_FUNC_TRACE(); 840 841 for (i = 0; i < dev->data->nb_tx_queues; i++) { 842 struct hn_tx_queue *txq = dev->data->tx_queues[i]; 843 844 if (!txq) 845 continue; 846 memset(&txq->stats, 0, sizeof(struct hn_stats)); 847 } 848 849 for (i = 0; i < dev->data->nb_rx_queues; i++) { 850 struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 851 852 if (!rxq) 853 continue; 854 855 memset(&rxq->stats, 0, sizeof(struct hn_stats)); 856 } 857 858 return 0; 859 } 860 861 static int 862 hn_dev_xstats_reset(struct rte_eth_dev *dev) 863 { 864 int ret; 865 866 ret = hn_dev_stats_reset(dev); 867 if (ret != 0) 868 return 0; 869 870 return hn_vf_xstats_reset(dev); 871 } 872 873 static int 874 hn_dev_xstats_count(struct rte_eth_dev *dev) 875 { 876 int ret, count; 877 878 count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings); 879 count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 880 881 ret = hn_vf_xstats_get_names(dev, NULL, 0); 882 if (ret < 0) 883 return ret; 884 885 return count + ret; 886 } 887 888 static int 889 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 890 struct rte_eth_xstat_name *xstats_names, 891 unsigned int limit) 892 { 893 unsigned int i, t, count = 0; 894 int ret; 895 896 if (!xstats_names) 897 return hn_dev_xstats_count(dev); 898 899 /* Note: limit checked in rte_eth_xstats_names() */ 900 for (i = 0; i < dev->data->nb_tx_queues; i++) { 901 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 902 903 if (!txq) 904 continue; 905 906 if (count >= limit) 907 break; 908 909 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 910 snprintf(xstats_names[count++].name, 911 RTE_ETH_XSTATS_NAME_SIZE, 912 "tx_q%u_%s", i, hn_stat_strings[t].name); 913 } 914 915 for (i = 0; i < dev->data->nb_rx_queues; i++) { 916 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 917 918 if (!rxq) 919 continue; 920 921 if (count >= limit) 922 break; 923 924 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 925 snprintf(xstats_names[count++].name, 926 RTE_ETH_XSTATS_NAME_SIZE, 927 "rx_q%u_%s", i, 928 hn_stat_strings[t].name); 929 } 930 931 ret = hn_vf_xstats_get_names(dev, xstats_names + count, 932 limit - count); 933 if (ret < 0) 934 return ret; 935 936 return count + ret; 937 } 938 939 static int 940 hn_dev_xstats_get(struct rte_eth_dev *dev, 941 struct rte_eth_xstat *xstats, 942 unsigned int n) 943 { 944 unsigned int i, t, count = 0; 945 const unsigned int nstats = hn_dev_xstats_count(dev); 946 const char *stats; 947 int ret; 948 949 PMD_INIT_FUNC_TRACE(); 950 951 if (n < nstats) 952 return nstats; 953 954 for (i = 0; i < dev->data->nb_tx_queues; i++) { 955 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 956 957 if (!txq) 958 continue; 959 960 stats = (const char *)&txq->stats; 961 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 962 xstats[count].id = count; 963 xstats[count].value = *(const uint64_t *) 964 (stats + hn_stat_strings[t].offset); 965 } 966 } 967 968 for (i = 0; i < dev->data->nb_rx_queues; i++) { 969 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 970 971 if (!rxq) 972 continue; 973 974 stats = (const char *)&rxq->stats; 975 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 976 xstats[count].id = count; 977 xstats[count].value = *(const uint64_t *) 978 (stats + hn_stat_strings[t].offset); 979 } 980 } 981 982 ret = hn_vf_xstats_get(dev, xstats, count, n); 983 if (ret < 0) 984 return ret; 985 986 return count + ret; 987 } 988 989 static int 990 hn_dev_start(struct rte_eth_dev *dev) 991 { 992 struct hn_data *hv = dev->data->dev_private; 993 int i, error; 994 995 PMD_INIT_FUNC_TRACE(); 996 997 /* Register to monitor hot plug events */ 998 error = rte_dev_event_callback_register(NULL, netvsc_hotadd_callback, 999 hv); 1000 if (error) { 1001 PMD_DRV_LOG(ERR, "failed to register device event callback"); 1002 return error; 1003 } 1004 1005 error = hn_rndis_set_rxfilter(hv, 1006 NDIS_PACKET_TYPE_BROADCAST | 1007 NDIS_PACKET_TYPE_ALL_MULTICAST | 1008 NDIS_PACKET_TYPE_DIRECTED); 1009 if (error) 1010 return error; 1011 1012 error = hn_vf_start(dev); 1013 if (error) 1014 hn_rndis_set_rxfilter(hv, 0); 1015 1016 /* Initialize Link state */ 1017 if (error == 0) 1018 hn_dev_link_update(dev, 0); 1019 1020 for (i = 0; i < hv->num_queues; i++) { 1021 dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED; 1022 dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED; 1023 } 1024 1025 return error; 1026 } 1027 1028 static int 1029 hn_dev_stop(struct rte_eth_dev *dev) 1030 { 1031 struct hn_data *hv = dev->data->dev_private; 1032 int i, ret; 1033 1034 PMD_INIT_FUNC_TRACE(); 1035 dev->data->dev_started = 0; 1036 1037 rte_dev_event_callback_unregister(NULL, netvsc_hotadd_callback, hv); 1038 hn_rndis_set_rxfilter(hv, 0); 1039 ret = hn_vf_stop(dev); 1040 1041 for (i = 0; i < hv->num_queues; i++) { 1042 dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; 1043 dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; 1044 } 1045 1046 return ret; 1047 } 1048 1049 static int 1050 hn_dev_close(struct rte_eth_dev *dev) 1051 { 1052 int ret; 1053 struct hn_data *hv = dev->data->dev_private; 1054 struct hv_hotadd_context *hot_ctx; 1055 1056 PMD_INIT_FUNC_TRACE(); 1057 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 1058 return 0; 1059 1060 rte_spinlock_lock(&hv->hotadd_lock); 1061 while (!LIST_EMPTY(&hv->hotadd_list)) { 1062 hot_ctx = LIST_FIRST(&hv->hotadd_list); 1063 rte_eal_alarm_cancel(netvsc_hotplug_retry, hot_ctx); 1064 LIST_REMOVE(hot_ctx, list); 1065 rte_free(hot_ctx); 1066 } 1067 rte_spinlock_unlock(&hv->hotadd_lock); 1068 1069 ret = hn_vf_close(dev); 1070 hn_dev_free_queues(dev); 1071 1072 return ret; 1073 } 1074 1075 /* 1076 * Setup connection between PMD and kernel. 1077 */ 1078 static int 1079 hn_attach(struct hn_data *hv, unsigned int mtu) 1080 { 1081 int error; 1082 1083 /* Attach NVS */ 1084 error = hn_nvs_attach(hv, mtu); 1085 if (error) 1086 goto failed_nvs; 1087 1088 /* Attach RNDIS */ 1089 error = hn_rndis_attach(hv); 1090 if (error) 1091 goto failed_rndis; 1092 1093 /* 1094 * NOTE: 1095 * Under certain conditions on certain versions of Hyper-V, 1096 * the RNDIS rxfilter is _not_ zero on the hypervisor side 1097 * after the successful RNDIS initialization. 1098 */ 1099 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 1100 return 0; 1101 failed_rndis: 1102 hn_nvs_detach(hv); 1103 failed_nvs: 1104 return error; 1105 } 1106 1107 static void 1108 hn_detach(struct hn_data *hv) 1109 { 1110 hn_nvs_detach(hv); 1111 hn_rndis_detach(hv); 1112 } 1113 1114 /* 1115 * Connects EXISTING rx/tx queues to NEW vmbus channel(s), and 1116 * re-initializes NDIS and RNDIS, including re-sending initial 1117 * NDIS/RNDIS configuration. To be used after the underlying vmbus 1118 * has been un- and re-mapped, e.g. as must happen when the device 1119 * MTU is changed. 1120 */ 1121 static int 1122 hn_reinit(struct rte_eth_dev *dev, uint16_t mtu) 1123 { 1124 struct hn_data *hv = dev->data->dev_private; 1125 struct hn_rx_queue **rxqs = (struct hn_rx_queue **)dev->data->rx_queues; 1126 struct hn_tx_queue **txqs = (struct hn_tx_queue **)dev->data->tx_queues; 1127 int i, ret = 0; 1128 1129 /* Point primary queues at new primary channel */ 1130 if (rxqs[0]) { 1131 rxqs[0]->chan = hv->channels[0]; 1132 txqs[0]->chan = hv->channels[0]; 1133 } 1134 1135 ret = hn_attach(hv, mtu); 1136 if (ret) 1137 return ret; 1138 1139 /* Create vmbus subchannels, additional RNDIS configuration */ 1140 ret = hn_dev_configure(dev); 1141 if (ret) 1142 return ret; 1143 1144 /* Point any additional queues at new subchannels */ 1145 if (rxqs[0]) { 1146 for (i = 1; i < dev->data->nb_rx_queues; i++) 1147 rxqs[i]->chan = hv->channels[i]; 1148 for (i = 1; i < dev->data->nb_tx_queues; i++) 1149 txqs[i]->chan = hv->channels[i]; 1150 } 1151 1152 return ret; 1153 } 1154 1155 static int 1156 hn_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) 1157 { 1158 struct hn_data *hv = dev->data->dev_private; 1159 unsigned int orig_mtu = dev->data->mtu; 1160 uint32_t rndis_mtu; 1161 int ret = 0; 1162 int i; 1163 1164 if (dev->data->dev_started) { 1165 PMD_DRV_LOG(ERR, "Device must be stopped before changing MTU"); 1166 return -EBUSY; 1167 } 1168 1169 /* Change MTU of underlying VF dev first, if it exists */ 1170 ret = hn_vf_mtu_set(dev, mtu); 1171 if (ret) 1172 return ret; 1173 1174 /* Release channel resources */ 1175 hn_detach(hv); 1176 1177 /* Close any secondary vmbus channels */ 1178 for (i = 1; i < hv->num_queues; i++) 1179 rte_vmbus_chan_close(hv->channels[i]); 1180 1181 /* Close primary vmbus channel */ 1182 rte_free(hv->channels[0]); 1183 1184 /* Unmap and re-map vmbus device */ 1185 rte_vmbus_unmap_device(hv->vmbus); 1186 ret = rte_vmbus_map_device(hv->vmbus); 1187 if (ret) { 1188 /* This is a catastrophic error - the device is unusable */ 1189 PMD_DRV_LOG(ERR, "Could not re-map vmbus device!"); 1190 return ret; 1191 } 1192 1193 /* Update pointers to re-mapped UIO resources */ 1194 hv->rxbuf_res = hv->vmbus->resource[HV_RECV_BUF_MAP]; 1195 hv->chim_res = hv->vmbus->resource[HV_SEND_BUF_MAP]; 1196 1197 /* Re-open the primary vmbus channel */ 1198 ret = rte_vmbus_chan_open(hv->vmbus, &hv->channels[0]); 1199 if (ret) { 1200 /* This is a catastrophic error - the device is unusable */ 1201 PMD_DRV_LOG(ERR, "Could not re-open vmbus channel!"); 1202 return ret; 1203 } 1204 1205 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 1206 1207 ret = hn_reinit(dev, mtu); 1208 if (!ret) 1209 goto out; 1210 1211 /* In case of error, attempt to restore original MTU */ 1212 ret = hn_reinit(dev, orig_mtu); 1213 if (ret) 1214 PMD_DRV_LOG(ERR, "Restoring original MTU failed for netvsc"); 1215 1216 ret = hn_vf_mtu_set(dev, orig_mtu); 1217 if (ret) 1218 PMD_DRV_LOG(ERR, "Restoring original MTU failed for VF"); 1219 1220 out: 1221 if (hn_rndis_get_mtu(hv, &rndis_mtu)) { 1222 PMD_DRV_LOG(ERR, "Could not get MTU via RNDIS"); 1223 } else { 1224 dev->data->mtu = (uint16_t)rndis_mtu; 1225 PMD_DRV_LOG(DEBUG, "RNDIS MTU is %u", dev->data->mtu); 1226 } 1227 1228 return ret; 1229 } 1230 1231 static const struct eth_dev_ops hn_eth_dev_ops = { 1232 .dev_configure = hn_dev_configure, 1233 .dev_start = hn_dev_start, 1234 .dev_stop = hn_dev_stop, 1235 .dev_close = hn_dev_close, 1236 .dev_infos_get = hn_dev_info_get, 1237 .txq_info_get = hn_dev_tx_queue_info, 1238 .rxq_info_get = hn_dev_rx_queue_info, 1239 .dev_supported_ptypes_get = hn_vf_supported_ptypes, 1240 .promiscuous_enable = hn_dev_promiscuous_enable, 1241 .promiscuous_disable = hn_dev_promiscuous_disable, 1242 .allmulticast_enable = hn_dev_allmulticast_enable, 1243 .allmulticast_disable = hn_dev_allmulticast_disable, 1244 .set_mc_addr_list = hn_dev_mc_addr_list, 1245 .mtu_set = hn_dev_mtu_set, 1246 .reta_update = hn_rss_reta_update, 1247 .reta_query = hn_rss_reta_query, 1248 .rss_hash_update = hn_rss_hash_update, 1249 .rss_hash_conf_get = hn_rss_hash_conf_get, 1250 .tx_queue_setup = hn_dev_tx_queue_setup, 1251 .tx_queue_release = hn_dev_tx_queue_release, 1252 .tx_done_cleanup = hn_dev_tx_done_cleanup, 1253 .rx_queue_setup = hn_dev_rx_queue_setup, 1254 .rx_queue_release = hn_dev_rx_queue_release, 1255 .link_update = hn_dev_link_update, 1256 .stats_get = hn_dev_stats_get, 1257 .stats_reset = hn_dev_stats_reset, 1258 .xstats_get = hn_dev_xstats_get, 1259 .xstats_get_names = hn_dev_xstats_get_names, 1260 .xstats_reset = hn_dev_xstats_reset, 1261 }; 1262 1263 static int 1264 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 1265 { 1266 struct hn_data *hv = eth_dev->data->dev_private; 1267 struct rte_device *device = eth_dev->device; 1268 struct rte_vmbus_device *vmbus; 1269 uint32_t mtu; 1270 unsigned int rxr_cnt; 1271 int err, max_chan; 1272 1273 PMD_INIT_FUNC_TRACE(); 1274 1275 rte_spinlock_init(&hv->hotadd_lock); 1276 LIST_INIT(&hv->hotadd_list); 1277 1278 vmbus = container_of(device, struct rte_vmbus_device, device); 1279 eth_dev->dev_ops = &hn_eth_dev_ops; 1280 eth_dev->rx_queue_count = hn_dev_rx_queue_count; 1281 eth_dev->rx_descriptor_status = hn_dev_rx_queue_status; 1282 eth_dev->tx_descriptor_status = hn_dev_tx_descriptor_status; 1283 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 1284 eth_dev->rx_pkt_burst = &hn_recv_pkts; 1285 1286 /* 1287 * for secondary processes, we don't initialize any further as primary 1288 * has already done this work. 1289 */ 1290 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 1291 return 0; 1292 1293 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS; 1294 1295 /* Since Hyper-V only supports one MAC address */ 1296 eth_dev->data->mac_addrs = rte_calloc("hv_mac", HN_MAX_MAC_ADDRS, 1297 sizeof(struct rte_ether_addr), 0); 1298 if (eth_dev->data->mac_addrs == NULL) { 1299 PMD_INIT_LOG(ERR, 1300 "Failed to allocate memory store MAC addresses"); 1301 return -ENOMEM; 1302 } 1303 1304 hv->vmbus = vmbus; 1305 hv->rxbuf_res = vmbus->resource[HV_RECV_BUF_MAP]; 1306 hv->chim_res = vmbus->resource[HV_SEND_BUF_MAP]; 1307 hv->port_id = eth_dev->data->port_id; 1308 hv->latency = HN_CHAN_LATENCY_NS; 1309 hv->rx_copybreak = HN_RXCOPY_THRESHOLD; 1310 hv->tx_copybreak = HN_TXCOPY_THRESHOLD; 1311 hv->rx_extmbuf_enable = HN_RX_EXTMBUF_ENABLE; 1312 hv->max_queues = 1; 1313 1314 rte_rwlock_init(&hv->vf_lock); 1315 hv->vf_ctx.vf_vsc_switched = false; 1316 hv->vf_ctx.vf_vsp_reported = false; 1317 hv->vf_ctx.vf_attached = false; 1318 hv->vf_ctx.vf_state = vf_unknown; 1319 1320 err = hn_parse_args(eth_dev); 1321 if (err) 1322 return err; 1323 1324 strlcpy(hv->owner.name, eth_dev->device->name, 1325 RTE_ETH_MAX_OWNER_NAME_LEN); 1326 err = rte_eth_dev_owner_new(&hv->owner.id); 1327 if (err) { 1328 PMD_INIT_LOG(ERR, "Can not get owner id"); 1329 return err; 1330 } 1331 1332 /* Initialize primary channel input for control operations */ 1333 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 1334 if (err) 1335 return err; 1336 1337 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 1338 1339 hv->primary = hn_rx_queue_alloc(hv, 0, 1340 eth_dev->device->numa_node); 1341 1342 if (!hv->primary) 1343 return -ENOMEM; 1344 1345 err = hn_attach(hv, RTE_ETHER_MTU); 1346 if (err) 1347 goto failed; 1348 1349 err = hn_chim_init(eth_dev); 1350 if (err) 1351 goto failed; 1352 1353 err = hn_rndis_get_mtu(hv, &mtu); 1354 if (err) 1355 goto failed; 1356 eth_dev->data->mtu = (uint16_t)mtu; 1357 PMD_INIT_LOG(DEBUG, "RNDIS MTU is %u", eth_dev->data->mtu); 1358 1359 err = hn_rndis_get_eaddr(hv, eth_dev->data->mac_addrs->addr_bytes); 1360 if (err) 1361 goto failed; 1362 1363 /* Multi queue requires later versions of windows server */ 1364 if (hv->nvs_ver < NVS_VERSION_5) 1365 return 0; 1366 1367 max_chan = rte_vmbus_max_channels(vmbus); 1368 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 1369 if (max_chan <= 0) 1370 goto failed; 1371 1372 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 1373 rxr_cnt = 1; 1374 1375 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 1376 1377 /* If VF was reported but not added, do it now */ 1378 if (hv->vf_ctx.vf_vsp_reported && !hv->vf_ctx.vf_vsc_switched) { 1379 PMD_INIT_LOG(DEBUG, "Adding VF device"); 1380 1381 err = hn_vf_add(eth_dev, hv); 1382 } 1383 1384 return 0; 1385 1386 failed: 1387 PMD_INIT_LOG(NOTICE, "device init failed"); 1388 1389 hn_chim_uninit(eth_dev); 1390 hn_detach(hv); 1391 return err; 1392 } 1393 1394 static int 1395 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 1396 { 1397 struct hn_data *hv = eth_dev->data->dev_private; 1398 int ret, ret_stop; 1399 1400 PMD_INIT_FUNC_TRACE(); 1401 1402 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 1403 return 0; 1404 1405 ret_stop = hn_dev_stop(eth_dev); 1406 hn_dev_close(eth_dev); 1407 1408 free(hv->vf_devargs); 1409 hv->vf_devargs = NULL; 1410 1411 hn_detach(hv); 1412 hn_chim_uninit(eth_dev); 1413 rte_vmbus_chan_close(hv->channels[0]); 1414 rte_free(hv->primary); 1415 ret = rte_eth_dev_owner_delete(hv->owner.id); 1416 if (ret != 0) 1417 return ret; 1418 1419 return ret_stop; 1420 } 1421 1422 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 1423 struct rte_vmbus_device *dev) 1424 { 1425 struct rte_eth_dev *eth_dev; 1426 int ret; 1427 1428 PMD_INIT_FUNC_TRACE(); 1429 1430 ret = rte_dev_event_monitor_start(); 1431 if (ret) { 1432 PMD_DRV_LOG(ERR, "Failed to start device event monitoring"); 1433 return ret; 1434 } 1435 1436 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 1437 if (!eth_dev) 1438 return -ENOMEM; 1439 1440 ret = eth_hn_dev_init(eth_dev); 1441 if (ret) { 1442 eth_dev_vmbus_release(eth_dev); 1443 rte_dev_event_monitor_stop(); 1444 } else { 1445 rte_eth_dev_probing_finish(eth_dev); 1446 } 1447 1448 return ret; 1449 } 1450 1451 static int eth_hn_remove(struct rte_vmbus_device *dev) 1452 { 1453 struct rte_eth_dev *eth_dev; 1454 int ret; 1455 1456 PMD_INIT_FUNC_TRACE(); 1457 1458 eth_dev = rte_eth_dev_allocated(dev->device.name); 1459 if (!eth_dev) 1460 return 0; /* port already released */ 1461 1462 ret = eth_hn_dev_uninit(eth_dev); 1463 if (ret) 1464 return ret; 1465 1466 eth_dev_vmbus_release(eth_dev); 1467 rte_dev_event_monitor_stop(); 1468 return 0; 1469 } 1470 1471 /* Network device GUID */ 1472 static const rte_uuid_t hn_net_ids[] = { 1473 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 1474 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 1475 { 0 } 1476 }; 1477 1478 static struct rte_vmbus_driver rte_netvsc_pmd = { 1479 .id_table = hn_net_ids, 1480 .probe = eth_hn_probe, 1481 .remove = eth_hn_remove, 1482 }; 1483 1484 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 1485 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 1486 RTE_LOG_REGISTER_SUFFIX(hn_logtype_init, init, NOTICE); 1487 RTE_LOG_REGISTER_SUFFIX(hn_logtype_driver, driver, NOTICE); 1488 RTE_PMD_REGISTER_PARAM_STRING(net_netvsc, 1489 NETVSC_ARG_LATENCY "=<uint32> " 1490 NETVSC_ARG_RXBREAK "=<uint32> " 1491 NETVSC_ARG_TXBREAK "=<uint32> " 1492 NETVSC_ARG_RX_EXTMBUF_ENABLE "=<0|1>"); 1493