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 rc = hn_rndis_get_offload(hv, dev_info); 261 if (rc != 0) 262 return rc; 263 264 rc = hn_vf_info_get(hv, dev_info); 265 if (rc != 0) 266 return rc; 267 268 return 0; 269 } 270 271 static int hn_rss_reta_update(struct rte_eth_dev *dev, 272 struct rte_eth_rss_reta_entry64 *reta_conf, 273 uint16_t reta_size) 274 { 275 struct hn_data *hv = dev->data->dev_private; 276 unsigned int i; 277 int err; 278 279 PMD_INIT_FUNC_TRACE(); 280 281 if (reta_size != NDIS_HASH_INDCNT) { 282 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 283 return -EINVAL; 284 } 285 286 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 287 uint16_t idx = i / RTE_RETA_GROUP_SIZE; 288 uint16_t shift = i % RTE_RETA_GROUP_SIZE; 289 uint64_t mask = (uint64_t)1 << shift; 290 291 if (reta_conf[idx].mask & mask) 292 hv->rss_ind[i] = reta_conf[idx].reta[shift]; 293 } 294 295 err = hn_rndis_conf_rss(hv, 0); 296 if (err) { 297 PMD_DRV_LOG(NOTICE, 298 "reta reconfig failed"); 299 return err; 300 } 301 302 return hn_vf_reta_hash_update(dev, reta_conf, reta_size); 303 } 304 305 static int hn_rss_reta_query(struct rte_eth_dev *dev, 306 struct rte_eth_rss_reta_entry64 *reta_conf, 307 uint16_t reta_size) 308 { 309 struct hn_data *hv = dev->data->dev_private; 310 unsigned int i; 311 312 PMD_INIT_FUNC_TRACE(); 313 314 if (reta_size != NDIS_HASH_INDCNT) { 315 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 316 return -EINVAL; 317 } 318 319 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 320 uint16_t idx = i / RTE_RETA_GROUP_SIZE; 321 uint16_t shift = i % RTE_RETA_GROUP_SIZE; 322 uint64_t mask = (uint64_t)1 << shift; 323 324 if (reta_conf[idx].mask & mask) 325 reta_conf[idx].reta[shift] = hv->rss_ind[i]; 326 } 327 return 0; 328 } 329 330 static void hn_rss_hash_init(struct hn_data *hv, 331 const struct rte_eth_rss_conf *rss_conf) 332 { 333 /* Convert from DPDK RSS hash flags to NDIS hash flags */ 334 hv->rss_hash = NDIS_HASH_FUNCTION_TOEPLITZ; 335 336 if (rss_conf->rss_hf & ETH_RSS_IPV4) 337 hv->rss_hash |= NDIS_HASH_IPV4; 338 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) 339 hv->rss_hash |= NDIS_HASH_TCP_IPV4; 340 if (rss_conf->rss_hf & ETH_RSS_IPV6) 341 hv->rss_hash |= NDIS_HASH_IPV6; 342 if (rss_conf->rss_hf & ETH_RSS_IPV6_EX) 343 hv->rss_hash |= NDIS_HASH_IPV6_EX; 344 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP) 345 hv->rss_hash |= NDIS_HASH_TCP_IPV6; 346 if (rss_conf->rss_hf & ETH_RSS_IPV6_TCP_EX) 347 hv->rss_hash |= NDIS_HASH_TCP_IPV6_EX; 348 349 memcpy(hv->rss_key, rss_conf->rss_key ? : rss_default_key, 350 NDIS_HASH_KEYSIZE_TOEPLITZ); 351 } 352 353 static int hn_rss_hash_update(struct rte_eth_dev *dev, 354 struct rte_eth_rss_conf *rss_conf) 355 { 356 struct hn_data *hv = dev->data->dev_private; 357 int err; 358 359 PMD_INIT_FUNC_TRACE(); 360 361 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 362 if (err) { 363 PMD_DRV_LOG(NOTICE, 364 "rss disable failed"); 365 return err; 366 } 367 368 hn_rss_hash_init(hv, rss_conf); 369 370 err = hn_rndis_conf_rss(hv, 0); 371 if (err) { 372 PMD_DRV_LOG(NOTICE, 373 "rss reconfig failed (RSS disabled)"); 374 return err; 375 } 376 377 378 return hn_vf_rss_hash_update(dev, rss_conf); 379 } 380 381 static int hn_rss_hash_conf_get(struct rte_eth_dev *dev, 382 struct rte_eth_rss_conf *rss_conf) 383 { 384 struct hn_data *hv = dev->data->dev_private; 385 386 PMD_INIT_FUNC_TRACE(); 387 388 if (hv->ndis_ver < NDIS_VERSION_6_20) { 389 PMD_DRV_LOG(DEBUG, "RSS not supported on this host"); 390 return -EOPNOTSUPP; 391 } 392 393 rss_conf->rss_key_len = NDIS_HASH_KEYSIZE_TOEPLITZ; 394 if (rss_conf->rss_key) 395 memcpy(rss_conf->rss_key, hv->rss_key, 396 NDIS_HASH_KEYSIZE_TOEPLITZ); 397 398 rss_conf->rss_hf = 0; 399 if (hv->rss_hash & NDIS_HASH_IPV4) 400 rss_conf->rss_hf |= ETH_RSS_IPV4; 401 402 if (hv->rss_hash & NDIS_HASH_TCP_IPV4) 403 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP; 404 405 if (hv->rss_hash & NDIS_HASH_IPV6) 406 rss_conf->rss_hf |= ETH_RSS_IPV6; 407 408 if (hv->rss_hash & NDIS_HASH_IPV6_EX) 409 rss_conf->rss_hf |= ETH_RSS_IPV6_EX; 410 411 if (hv->rss_hash & NDIS_HASH_TCP_IPV6) 412 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP; 413 414 if (hv->rss_hash & NDIS_HASH_TCP_IPV6_EX) 415 rss_conf->rss_hf |= ETH_RSS_IPV6_TCP_EX; 416 417 return 0; 418 } 419 420 static int 421 hn_dev_promiscuous_enable(struct rte_eth_dev *dev) 422 { 423 struct hn_data *hv = dev->data->dev_private; 424 425 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); 426 return hn_vf_promiscuous_enable(dev); 427 } 428 429 static int 430 hn_dev_promiscuous_disable(struct rte_eth_dev *dev) 431 { 432 struct hn_data *hv = dev->data->dev_private; 433 uint32_t filter; 434 435 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; 436 if (dev->data->all_multicast) 437 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; 438 hn_rndis_set_rxfilter(hv, filter); 439 return hn_vf_promiscuous_disable(dev); 440 } 441 442 static int 443 hn_dev_allmulticast_enable(struct rte_eth_dev *dev) 444 { 445 struct hn_data *hv = dev->data->dev_private; 446 447 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 448 NDIS_PACKET_TYPE_ALL_MULTICAST | 449 NDIS_PACKET_TYPE_BROADCAST); 450 return hn_vf_allmulticast_enable(dev); 451 } 452 453 static int 454 hn_dev_allmulticast_disable(struct rte_eth_dev *dev) 455 { 456 struct hn_data *hv = dev->data->dev_private; 457 458 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 459 NDIS_PACKET_TYPE_BROADCAST); 460 return hn_vf_allmulticast_disable(dev); 461 } 462 463 static int 464 hn_dev_mc_addr_list(struct rte_eth_dev *dev, 465 struct rte_ether_addr *mc_addr_set, 466 uint32_t nb_mc_addr) 467 { 468 /* No filtering on the synthetic path, but can do it on VF */ 469 return hn_vf_mc_addr_list(dev, mc_addr_set, nb_mc_addr); 470 } 471 472 /* Setup shared rx/tx queue data */ 473 static int hn_subchan_configure(struct hn_data *hv, 474 uint32_t subchan) 475 { 476 struct vmbus_channel *primary = hn_primary_chan(hv); 477 int err; 478 unsigned int retry = 0; 479 480 PMD_DRV_LOG(DEBUG, 481 "open %u subchannels", subchan); 482 483 /* Send create sub channels command */ 484 err = hn_nvs_alloc_subchans(hv, &subchan); 485 if (err) 486 return err; 487 488 while (subchan > 0) { 489 struct vmbus_channel *new_sc; 490 uint16_t chn_index; 491 492 err = rte_vmbus_subchan_open(primary, &new_sc); 493 if (err == -ENOENT && ++retry < 1000) { 494 /* This can happen if not ready yet */ 495 rte_delay_ms(10); 496 continue; 497 } 498 499 if (err) { 500 PMD_DRV_LOG(ERR, 501 "open subchannel failed: %d", err); 502 return err; 503 } 504 505 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); 506 507 retry = 0; 508 chn_index = rte_vmbus_sub_channel_index(new_sc); 509 if (chn_index == 0 || chn_index > hv->max_queues) { 510 PMD_DRV_LOG(ERR, 511 "Invalid subchannel offermsg channel %u", 512 chn_index); 513 return -EIO; 514 } 515 516 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); 517 hv->channels[chn_index] = new_sc; 518 --subchan; 519 } 520 521 return err; 522 } 523 524 static int hn_dev_configure(struct rte_eth_dev *dev) 525 { 526 struct rte_eth_conf *dev_conf = &dev->data->dev_conf; 527 struct rte_eth_rss_conf *rss_conf = &dev_conf->rx_adv_conf.rss_conf; 528 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; 529 const struct rte_eth_txmode *txmode = &dev_conf->txmode; 530 struct hn_data *hv = dev->data->dev_private; 531 uint64_t unsupported; 532 int i, err, subchan; 533 534 PMD_INIT_FUNC_TRACE(); 535 536 if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) 537 dev_conf->rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; 538 539 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; 540 if (unsupported) { 541 PMD_DRV_LOG(NOTICE, 542 "unsupported TX offload: %#" PRIx64, 543 unsupported); 544 return -EINVAL; 545 } 546 547 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; 548 if (unsupported) { 549 PMD_DRV_LOG(NOTICE, 550 "unsupported RX offload: %#" PRIx64, 551 rxmode->offloads); 552 return -EINVAL; 553 } 554 555 hv->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP); 556 557 err = hn_rndis_conf_offload(hv, txmode->offloads, 558 rxmode->offloads); 559 if (err) { 560 PMD_DRV_LOG(NOTICE, 561 "offload configure failed"); 562 return err; 563 } 564 565 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, 566 dev->data->nb_tx_queues); 567 568 for (i = 0; i < NDIS_HASH_INDCNT; i++) 569 hv->rss_ind[i] = i % hv->num_queues; 570 571 hn_rss_hash_init(hv, rss_conf); 572 573 subchan = hv->num_queues - 1; 574 if (subchan > 0) { 575 err = hn_subchan_configure(hv, subchan); 576 if (err) { 577 PMD_DRV_LOG(NOTICE, 578 "subchannel configuration failed"); 579 return err; 580 } 581 582 err = hn_rndis_conf_rss(hv, 0); 583 if (err) { 584 PMD_DRV_LOG(NOTICE, 585 "initial RSS config failed"); 586 return err; 587 } 588 } 589 590 return hn_vf_configure(dev, dev_conf); 591 } 592 593 static int hn_dev_stats_get(struct rte_eth_dev *dev, 594 struct rte_eth_stats *stats) 595 { 596 unsigned int i; 597 598 hn_vf_stats_get(dev, stats); 599 600 for (i = 0; i < dev->data->nb_tx_queues; i++) { 601 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 602 603 if (!txq) 604 continue; 605 606 stats->opackets += txq->stats.packets; 607 stats->obytes += txq->stats.bytes; 608 stats->oerrors += txq->stats.errors; 609 610 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 611 stats->q_opackets[i] = txq->stats.packets; 612 stats->q_obytes[i] = txq->stats.bytes; 613 } 614 } 615 616 for (i = 0; i < dev->data->nb_rx_queues; i++) { 617 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 618 619 if (!rxq) 620 continue; 621 622 stats->ipackets += rxq->stats.packets; 623 stats->ibytes += rxq->stats.bytes; 624 stats->ierrors += rxq->stats.errors; 625 stats->imissed += rxq->stats.ring_full; 626 627 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 628 stats->q_ipackets[i] = rxq->stats.packets; 629 stats->q_ibytes[i] = rxq->stats.bytes; 630 } 631 } 632 633 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; 634 return 0; 635 } 636 637 static int 638 hn_dev_stats_reset(struct rte_eth_dev *dev) 639 { 640 unsigned int i; 641 642 PMD_INIT_FUNC_TRACE(); 643 644 for (i = 0; i < dev->data->nb_tx_queues; i++) { 645 struct hn_tx_queue *txq = dev->data->tx_queues[i]; 646 647 if (!txq) 648 continue; 649 memset(&txq->stats, 0, sizeof(struct hn_stats)); 650 } 651 652 for (i = 0; i < dev->data->nb_rx_queues; i++) { 653 struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 654 655 if (!rxq) 656 continue; 657 658 memset(&rxq->stats, 0, sizeof(struct hn_stats)); 659 } 660 661 return 0; 662 } 663 664 static int 665 hn_dev_xstats_reset(struct rte_eth_dev *dev) 666 { 667 int ret; 668 669 ret = hn_dev_stats_reset(dev); 670 if (ret != 0) 671 return 0; 672 673 return hn_vf_xstats_reset(dev); 674 } 675 676 static int 677 hn_dev_xstats_count(struct rte_eth_dev *dev) 678 { 679 int ret, count; 680 681 count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings); 682 count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 683 684 ret = hn_vf_xstats_get_names(dev, NULL, 0); 685 if (ret < 0) 686 return ret; 687 688 return count + ret; 689 } 690 691 static int 692 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 693 struct rte_eth_xstat_name *xstats_names, 694 unsigned int limit) 695 { 696 unsigned int i, t, count = 0; 697 int ret; 698 699 if (!xstats_names) 700 return hn_dev_xstats_count(dev); 701 702 /* Note: limit checked in rte_eth_xstats_names() */ 703 for (i = 0; i < dev->data->nb_tx_queues; i++) { 704 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 705 706 if (!txq) 707 continue; 708 709 if (count >= limit) 710 break; 711 712 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 713 snprintf(xstats_names[count++].name, 714 RTE_ETH_XSTATS_NAME_SIZE, 715 "tx_q%u_%s", i, hn_stat_strings[t].name); 716 } 717 718 for (i = 0; i < dev->data->nb_rx_queues; i++) { 719 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 720 721 if (!rxq) 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 "rx_q%u_%s", i, 731 hn_stat_strings[t].name); 732 } 733 734 ret = hn_vf_xstats_get_names(dev, xstats_names + count, 735 limit - count); 736 if (ret < 0) 737 return ret; 738 739 return count + ret; 740 } 741 742 static int 743 hn_dev_xstats_get(struct rte_eth_dev *dev, 744 struct rte_eth_xstat *xstats, 745 unsigned int n) 746 { 747 unsigned int i, t, count = 0; 748 const unsigned int nstats = hn_dev_xstats_count(dev); 749 const char *stats; 750 int ret; 751 752 PMD_INIT_FUNC_TRACE(); 753 754 if (n < nstats) 755 return nstats; 756 757 for (i = 0; i < dev->data->nb_tx_queues; i++) { 758 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 759 760 if (!txq) 761 continue; 762 763 stats = (const char *)&txq->stats; 764 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 765 xstats[count].id = count; 766 xstats[count].value = *(const uint64_t *) 767 (stats + hn_stat_strings[t].offset); 768 } 769 } 770 771 for (i = 0; i < dev->data->nb_rx_queues; i++) { 772 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 773 774 if (!rxq) 775 continue; 776 777 stats = (const char *)&rxq->stats; 778 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 779 xstats[count].id = count; 780 xstats[count].value = *(const uint64_t *) 781 (stats + hn_stat_strings[t].offset); 782 } 783 } 784 785 ret = hn_vf_xstats_get(dev, xstats, count, n); 786 if (ret < 0) 787 return ret; 788 789 return count + ret; 790 } 791 792 static int 793 hn_dev_start(struct rte_eth_dev *dev) 794 { 795 struct hn_data *hv = dev->data->dev_private; 796 int error; 797 798 PMD_INIT_FUNC_TRACE(); 799 800 error = hn_rndis_set_rxfilter(hv, 801 NDIS_PACKET_TYPE_BROADCAST | 802 NDIS_PACKET_TYPE_ALL_MULTICAST | 803 NDIS_PACKET_TYPE_DIRECTED); 804 if (error) 805 return error; 806 807 error = hn_vf_start(dev); 808 if (error) 809 hn_rndis_set_rxfilter(hv, 0); 810 811 return error; 812 } 813 814 static void 815 hn_dev_stop(struct rte_eth_dev *dev) 816 { 817 struct hn_data *hv = dev->data->dev_private; 818 819 PMD_INIT_FUNC_TRACE(); 820 821 hn_rndis_set_rxfilter(hv, 0); 822 hn_vf_stop(dev); 823 } 824 825 static void 826 hn_dev_close(struct rte_eth_dev *dev) 827 { 828 PMD_INIT_FUNC_TRACE(); 829 830 hn_vf_close(dev); 831 hn_dev_free_queues(dev); 832 } 833 834 static const struct eth_dev_ops hn_eth_dev_ops = { 835 .dev_configure = hn_dev_configure, 836 .dev_start = hn_dev_start, 837 .dev_stop = hn_dev_stop, 838 .dev_close = hn_dev_close, 839 .dev_infos_get = hn_dev_info_get, 840 .dev_supported_ptypes_get = hn_vf_supported_ptypes, 841 .promiscuous_enable = hn_dev_promiscuous_enable, 842 .promiscuous_disable = hn_dev_promiscuous_disable, 843 .allmulticast_enable = hn_dev_allmulticast_enable, 844 .allmulticast_disable = hn_dev_allmulticast_disable, 845 .set_mc_addr_list = hn_dev_mc_addr_list, 846 .reta_update = hn_rss_reta_update, 847 .reta_query = hn_rss_reta_query, 848 .rss_hash_update = hn_rss_hash_update, 849 .rss_hash_conf_get = hn_rss_hash_conf_get, 850 .tx_queue_setup = hn_dev_tx_queue_setup, 851 .tx_queue_release = hn_dev_tx_queue_release, 852 .tx_done_cleanup = hn_dev_tx_done_cleanup, 853 .rx_queue_setup = hn_dev_rx_queue_setup, 854 .rx_queue_release = hn_dev_rx_queue_release, 855 .link_update = hn_dev_link_update, 856 .stats_get = hn_dev_stats_get, 857 .stats_reset = hn_dev_stats_reset, 858 .xstats_get = hn_dev_xstats_get, 859 .xstats_get_names = hn_dev_xstats_get_names, 860 .xstats_reset = hn_dev_xstats_reset, 861 }; 862 863 /* 864 * Setup connection between PMD and kernel. 865 */ 866 static int 867 hn_attach(struct hn_data *hv, unsigned int mtu) 868 { 869 int error; 870 871 /* Attach NVS */ 872 error = hn_nvs_attach(hv, mtu); 873 if (error) 874 goto failed_nvs; 875 876 /* Attach RNDIS */ 877 error = hn_rndis_attach(hv); 878 if (error) 879 goto failed_rndis; 880 881 /* 882 * NOTE: 883 * Under certain conditions on certain versions of Hyper-V, 884 * the RNDIS rxfilter is _not_ zero on the hypervisor side 885 * after the successful RNDIS initialization. 886 */ 887 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 888 return 0; 889 failed_rndis: 890 hn_nvs_detach(hv); 891 failed_nvs: 892 return error; 893 } 894 895 static void 896 hn_detach(struct hn_data *hv) 897 { 898 hn_nvs_detach(hv); 899 hn_rndis_detach(hv); 900 } 901 902 static int 903 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 904 { 905 struct hn_data *hv = eth_dev->data->dev_private; 906 struct rte_device *device = eth_dev->device; 907 struct rte_vmbus_device *vmbus; 908 unsigned int rxr_cnt; 909 int err, max_chan; 910 911 PMD_INIT_FUNC_TRACE(); 912 913 vmbus = container_of(device, struct rte_vmbus_device, device); 914 eth_dev->dev_ops = &hn_eth_dev_ops; 915 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 916 eth_dev->rx_pkt_burst = &hn_recv_pkts; 917 918 /* 919 * for secondary processes, we don't initialize any further as primary 920 * has already done this work. 921 */ 922 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 923 return 0; 924 925 /* Since Hyper-V only supports one MAC address, just use local data */ 926 eth_dev->data->mac_addrs = &hv->mac_addr; 927 928 hv->vmbus = vmbus; 929 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; 930 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; 931 hv->port_id = eth_dev->data->port_id; 932 hv->latency = HN_CHAN_LATENCY_NS; 933 hv->max_queues = 1; 934 rte_spinlock_init(&hv->vf_lock); 935 hv->vf_port = HN_INVALID_PORT; 936 937 err = hn_parse_args(eth_dev); 938 if (err) 939 return err; 940 941 strlcpy(hv->owner.name, eth_dev->device->name, 942 RTE_ETH_MAX_OWNER_NAME_LEN); 943 err = rte_eth_dev_owner_new(&hv->owner.id); 944 if (err) { 945 PMD_INIT_LOG(ERR, "Can not get owner id"); 946 return err; 947 } 948 949 /* Initialize primary channel input for control operations */ 950 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 951 if (err) 952 return err; 953 954 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 955 956 hv->primary = hn_rx_queue_alloc(hv, 0, 957 eth_dev->device->numa_node); 958 959 if (!hv->primary) 960 return -ENOMEM; 961 962 err = hn_attach(hv, RTE_ETHER_MTU); 963 if (err) 964 goto failed; 965 966 err = hn_tx_pool_init(eth_dev); 967 if (err) 968 goto failed; 969 970 err = hn_rndis_get_eaddr(hv, hv->mac_addr.addr_bytes); 971 if (err) 972 goto failed; 973 974 /* Multi queue requires later versions of windows server */ 975 if (hv->nvs_ver < NVS_VERSION_5) 976 return 0; 977 978 max_chan = rte_vmbus_max_channels(vmbus); 979 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 980 if (max_chan <= 0) 981 goto failed; 982 983 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 984 rxr_cnt = 1; 985 986 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 987 988 /* If VF was reported but not added, do it now */ 989 if (hv->vf_present && !hn_vf_attached(hv)) { 990 PMD_INIT_LOG(DEBUG, "Adding VF device"); 991 992 err = hn_vf_add(eth_dev, hv); 993 if (err) 994 hv->vf_present = 0; 995 } 996 997 return 0; 998 999 failed: 1000 PMD_INIT_LOG(NOTICE, "device init failed"); 1001 1002 hn_tx_pool_uninit(eth_dev); 1003 hn_detach(hv); 1004 return err; 1005 } 1006 1007 static int 1008 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 1009 { 1010 struct hn_data *hv = eth_dev->data->dev_private; 1011 int ret; 1012 1013 PMD_INIT_FUNC_TRACE(); 1014 1015 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 1016 return 0; 1017 1018 hn_dev_stop(eth_dev); 1019 hn_dev_close(eth_dev); 1020 1021 eth_dev->dev_ops = NULL; 1022 eth_dev->tx_pkt_burst = NULL; 1023 eth_dev->rx_pkt_burst = NULL; 1024 1025 hn_detach(hv); 1026 hn_tx_pool_uninit(eth_dev); 1027 rte_vmbus_chan_close(hv->primary->chan); 1028 rte_free(hv->primary); 1029 ret = rte_eth_dev_owner_delete(hv->owner.id); 1030 if (ret != 0) 1031 return ret; 1032 1033 return 0; 1034 } 1035 1036 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 1037 struct rte_vmbus_device *dev) 1038 { 1039 struct rte_eth_dev *eth_dev; 1040 int ret; 1041 1042 PMD_INIT_FUNC_TRACE(); 1043 1044 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 1045 if (!eth_dev) 1046 return -ENOMEM; 1047 1048 ret = eth_hn_dev_init(eth_dev); 1049 if (ret) 1050 eth_dev_vmbus_release(eth_dev); 1051 else 1052 rte_eth_dev_probing_finish(eth_dev); 1053 1054 return ret; 1055 } 1056 1057 static int eth_hn_remove(struct rte_vmbus_device *dev) 1058 { 1059 struct rte_eth_dev *eth_dev; 1060 int ret; 1061 1062 PMD_INIT_FUNC_TRACE(); 1063 1064 eth_dev = rte_eth_dev_allocated(dev->device.name); 1065 if (!eth_dev) 1066 return -ENODEV; 1067 1068 ret = eth_hn_dev_uninit(eth_dev); 1069 if (ret) 1070 return ret; 1071 1072 eth_dev_vmbus_release(eth_dev); 1073 return 0; 1074 } 1075 1076 /* Network device GUID */ 1077 static const rte_uuid_t hn_net_ids[] = { 1078 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 1079 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 1080 { 0 } 1081 }; 1082 1083 static struct rte_vmbus_driver rte_netvsc_pmd = { 1084 .id_table = hn_net_ids, 1085 .probe = eth_hn_probe, 1086 .remove = eth_hn_remove, 1087 }; 1088 1089 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 1090 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 1091 1092 RTE_INIT(hn_init_log) 1093 { 1094 hn_logtype_init = rte_log_register("pmd.net.netvsc.init"); 1095 if (hn_logtype_init >= 0) 1096 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE); 1097 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver"); 1098 if (hn_logtype_driver >= 0) 1099 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE); 1100 } 1101