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 struct hn_xstats_name_off { 49 char name[RTE_ETH_XSTATS_NAME_SIZE]; 50 unsigned int offset; 51 }; 52 53 static const struct hn_xstats_name_off hn_stat_strings[] = { 54 { "good_packets", offsetof(struct hn_stats, packets) }, 55 { "good_bytes", offsetof(struct hn_stats, bytes) }, 56 { "errors", offsetof(struct hn_stats, errors) }, 57 { "ring full", offsetof(struct hn_stats, ring_full) }, 58 { "channel full", offsetof(struct hn_stats, channel_full) }, 59 { "multicast_packets", offsetof(struct hn_stats, multicast) }, 60 { "broadcast_packets", offsetof(struct hn_stats, broadcast) }, 61 { "undersize_packets", offsetof(struct hn_stats, size_bins[0]) }, 62 { "size_64_packets", offsetof(struct hn_stats, size_bins[1]) }, 63 { "size_65_127_packets", offsetof(struct hn_stats, size_bins[2]) }, 64 { "size_128_255_packets", offsetof(struct hn_stats, size_bins[3]) }, 65 { "size_256_511_packets", offsetof(struct hn_stats, size_bins[4]) }, 66 { "size_512_1023_packets", offsetof(struct hn_stats, size_bins[5]) }, 67 { "size_1024_1518_packets", offsetof(struct hn_stats, size_bins[6]) }, 68 { "size_1519_max_packets", offsetof(struct hn_stats, size_bins[7]) }, 69 }; 70 71 /* The default RSS key. 72 * This value is the same as MLX5 so that flows will be 73 * received on same path for both VF and synthetic NIC. 74 */ 75 static const uint8_t rss_default_key[NDIS_HASH_KEYSIZE_TOEPLITZ] = { 76 0x2c, 0xc6, 0x81, 0xd1, 0x5b, 0xdb, 0xf4, 0xf7, 77 0xfc, 0xa2, 0x83, 0x19, 0xdb, 0x1a, 0x3e, 0x94, 78 0x6b, 0x9e, 0x38, 0xd9, 0x2c, 0x9c, 0x03, 0xd1, 79 0xad, 0x99, 0x44, 0xa7, 0xd9, 0x56, 0x3d, 0x59, 80 0x06, 0x3c, 0x25, 0xf3, 0xfc, 0x1f, 0xdc, 0x2a, 81 }; 82 83 static struct rte_eth_dev * 84 eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size) 85 { 86 struct rte_eth_dev *eth_dev; 87 const char *name; 88 89 if (!dev) 90 return NULL; 91 92 name = dev->device.name; 93 94 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 95 eth_dev = rte_eth_dev_allocate(name); 96 if (!eth_dev) { 97 PMD_DRV_LOG(NOTICE, "can not allocate rte ethdev"); 98 return NULL; 99 } 100 101 if (private_data_size) { 102 eth_dev->data->dev_private = 103 rte_zmalloc_socket(name, private_data_size, 104 RTE_CACHE_LINE_SIZE, dev->device.numa_node); 105 if (!eth_dev->data->dev_private) { 106 PMD_DRV_LOG(NOTICE, "can not allocate driver data"); 107 rte_eth_dev_release_port(eth_dev); 108 return NULL; 109 } 110 } 111 } else { 112 eth_dev = rte_eth_dev_attach_secondary(name); 113 if (!eth_dev) { 114 PMD_DRV_LOG(NOTICE, "can not attach secondary"); 115 return NULL; 116 } 117 } 118 119 eth_dev->device = &dev->device; 120 121 /* interrupt is simulated */ 122 dev->intr_handle.type = RTE_INTR_HANDLE_EXT; 123 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC; 124 eth_dev->intr_handle = &dev->intr_handle; 125 126 return eth_dev; 127 } 128 129 static void 130 eth_dev_vmbus_release(struct rte_eth_dev *eth_dev) 131 { 132 /* free ether device */ 133 rte_eth_dev_release_port(eth_dev); 134 135 eth_dev->device = NULL; 136 eth_dev->intr_handle = NULL; 137 } 138 139 /* handle "latency=X" from devargs */ 140 static int hn_set_latency(const char *key, const char *value, void *opaque) 141 { 142 struct hn_data *hv = opaque; 143 char *endp = NULL; 144 unsigned long lat; 145 146 errno = 0; 147 lat = strtoul(value, &endp, 0); 148 149 if (*value == '\0' || *endp != '\0') { 150 PMD_DRV_LOG(ERR, "invalid parameter %s=%s", key, value); 151 return -EINVAL; 152 } 153 154 PMD_DRV_LOG(DEBUG, "set latency %lu usec", lat); 155 156 hv->latency = lat * 1000; /* usec to nsec */ 157 return 0; 158 } 159 160 /* Parse device arguments */ 161 static int hn_parse_args(const struct rte_eth_dev *dev) 162 { 163 struct hn_data *hv = dev->data->dev_private; 164 struct rte_devargs *devargs = dev->device->devargs; 165 static const char * const valid_keys[] = { 166 "latency", 167 NULL 168 }; 169 struct rte_kvargs *kvlist; 170 int ret; 171 172 if (!devargs) 173 return 0; 174 175 PMD_INIT_LOG(DEBUG, "device args %s %s", 176 devargs->name, devargs->args); 177 178 kvlist = rte_kvargs_parse(devargs->args, valid_keys); 179 if (!kvlist) { 180 PMD_DRV_LOG(NOTICE, "invalid parameters"); 181 return -EINVAL; 182 } 183 184 ret = rte_kvargs_process(kvlist, "latency", hn_set_latency, hv); 185 if (ret) 186 PMD_DRV_LOG(ERR, "Unable to process latency arg\n"); 187 188 rte_kvargs_free(kvlist); 189 return ret; 190 } 191 192 /* Update link status. 193 * Note: the DPDK definition of "wait_to_complete" 194 * means block this call until link is up. 195 * which is not worth supporting. 196 */ 197 int 198 hn_dev_link_update(struct rte_eth_dev *dev, 199 int wait_to_complete __rte_unused) 200 { 201 struct hn_data *hv = dev->data->dev_private; 202 struct rte_eth_link link, old; 203 int error; 204 205 old = dev->data->dev_link; 206 207 error = hn_rndis_get_linkstatus(hv); 208 if (error) 209 return error; 210 211 hn_rndis_get_linkspeed(hv); 212 213 link = (struct rte_eth_link) { 214 .link_duplex = ETH_LINK_FULL_DUPLEX, 215 .link_autoneg = ETH_LINK_SPEED_FIXED, 216 .link_speed = hv->link_speed / 10000, 217 }; 218 219 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED) 220 link.link_status = ETH_LINK_UP; 221 else 222 link.link_status = ETH_LINK_DOWN; 223 224 if (old.link_status == link.link_status) 225 return 0; 226 227 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id, 228 (link.link_status == ETH_LINK_UP) ? "up" : "down"); 229 230 return rte_eth_linkstatus_set(dev, &link); 231 } 232 233 static int hn_dev_info_get(struct rte_eth_dev *dev, 234 struct rte_eth_dev_info *dev_info) 235 { 236 struct hn_data *hv = dev->data->dev_private; 237 int rc; 238 239 dev_info->speed_capa = ETH_LINK_SPEED_10G; 240 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE; 241 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN; 242 dev_info->max_mac_addrs = 1; 243 244 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ; 245 dev_info->flow_type_rss_offloads = hv->rss_offloads; 246 dev_info->reta_size = ETH_RSS_RETA_SIZE_128; 247 248 dev_info->max_rx_queues = hv->max_queues; 249 dev_info->max_tx_queues = hv->max_queues; 250 251 dev_info->tx_desc_lim.nb_min = 1; 252 dev_info->tx_desc_lim.nb_max = 4096; 253 254 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 255 return 0; 256 257 /* fills in rx and tx offload capability */ 258 rc = hn_rndis_get_offload(hv, dev_info); 259 if (rc != 0) 260 return rc; 261 262 /* merges the offload and queues of vf */ 263 return hn_vf_info_get(hv, dev_info); 264 } 265 266 static int hn_rss_reta_update(struct rte_eth_dev *dev, 267 struct rte_eth_rss_reta_entry64 *reta_conf, 268 uint16_t reta_size) 269 { 270 struct hn_data *hv = dev->data->dev_private; 271 unsigned int i; 272 int err; 273 274 PMD_INIT_FUNC_TRACE(); 275 276 if (reta_size != NDIS_HASH_INDCNT) { 277 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 278 return -EINVAL; 279 } 280 281 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 282 uint16_t idx = i / RTE_RETA_GROUP_SIZE; 283 uint16_t shift = i % RTE_RETA_GROUP_SIZE; 284 uint64_t mask = (uint64_t)1 << shift; 285 286 if (reta_conf[idx].mask & mask) 287 hv->rss_ind[i] = reta_conf[idx].reta[shift]; 288 } 289 290 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 291 if (err) { 292 PMD_DRV_LOG(NOTICE, 293 "rss disable failed"); 294 return err; 295 } 296 297 err = hn_rndis_conf_rss(hv, 0); 298 if (err) { 299 PMD_DRV_LOG(NOTICE, 300 "reta reconfig failed"); 301 return err; 302 } 303 304 return hn_vf_reta_hash_update(dev, reta_conf, reta_size); 305 } 306 307 static int hn_rss_reta_query(struct rte_eth_dev *dev, 308 struct rte_eth_rss_reta_entry64 *reta_conf, 309 uint16_t reta_size) 310 { 311 struct hn_data *hv = dev->data->dev_private; 312 unsigned int i; 313 314 PMD_INIT_FUNC_TRACE(); 315 316 if (reta_size != NDIS_HASH_INDCNT) { 317 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 318 return -EINVAL; 319 } 320 321 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 322 uint16_t idx = i / RTE_RETA_GROUP_SIZE; 323 uint16_t shift = i % RTE_RETA_GROUP_SIZE; 324 uint64_t mask = (uint64_t)1 << shift; 325 326 if (reta_conf[idx].mask & mask) 327 reta_conf[idx].reta[shift] = hv->rss_ind[i]; 328 } 329 return 0; 330 } 331 332 static void hn_rss_hash_init(struct hn_data *hv, 333 const struct rte_eth_rss_conf *rss_conf) 334 { 335 /* Convert from DPDK RSS hash flags to NDIS hash flags */ 336 hv->rss_hash = NDIS_HASH_FUNCTION_TOEPLITZ; 337 338 if (rss_conf->rss_hf & ETH_RSS_IPV4) 339 hv->rss_hash |= NDIS_HASH_IPV4; 340 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) 341 hv->rss_hash |= NDIS_HASH_TCP_IPV4; 342 if (rss_conf->rss_hf & ETH_RSS_IPV6) 343 hv->rss_hash |= NDIS_HASH_IPV6; 344 if (rss_conf->rss_hf & ETH_RSS_IPV6_EX) 345 hv->rss_hash |= NDIS_HASH_IPV6_EX; 346 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP) 347 hv->rss_hash |= NDIS_HASH_TCP_IPV6; 348 if (rss_conf->rss_hf & ETH_RSS_IPV6_TCP_EX) 349 hv->rss_hash |= NDIS_HASH_TCP_IPV6_EX; 350 351 memcpy(hv->rss_key, rss_conf->rss_key ? : rss_default_key, 352 NDIS_HASH_KEYSIZE_TOEPLITZ); 353 } 354 355 static int hn_rss_hash_update(struct rte_eth_dev *dev, 356 struct rte_eth_rss_conf *rss_conf) 357 { 358 struct hn_data *hv = dev->data->dev_private; 359 int err; 360 361 PMD_INIT_FUNC_TRACE(); 362 363 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 364 if (err) { 365 PMD_DRV_LOG(NOTICE, 366 "rss disable failed"); 367 return err; 368 } 369 370 hn_rss_hash_init(hv, rss_conf); 371 372 if (rss_conf->rss_hf != 0) { 373 err = hn_rndis_conf_rss(hv, 0); 374 if (err) { 375 PMD_DRV_LOG(NOTICE, 376 "rss reconfig failed (RSS disabled)"); 377 return err; 378 } 379 } 380 381 return hn_vf_rss_hash_update(dev, rss_conf); 382 } 383 384 static int hn_rss_hash_conf_get(struct rte_eth_dev *dev, 385 struct rte_eth_rss_conf *rss_conf) 386 { 387 struct hn_data *hv = dev->data->dev_private; 388 389 PMD_INIT_FUNC_TRACE(); 390 391 if (hv->ndis_ver < NDIS_VERSION_6_20) { 392 PMD_DRV_LOG(DEBUG, "RSS not supported on this host"); 393 return -EOPNOTSUPP; 394 } 395 396 rss_conf->rss_key_len = NDIS_HASH_KEYSIZE_TOEPLITZ; 397 if (rss_conf->rss_key) 398 memcpy(rss_conf->rss_key, hv->rss_key, 399 NDIS_HASH_KEYSIZE_TOEPLITZ); 400 401 rss_conf->rss_hf = 0; 402 if (hv->rss_hash & NDIS_HASH_IPV4) 403 rss_conf->rss_hf |= ETH_RSS_IPV4; 404 405 if (hv->rss_hash & NDIS_HASH_TCP_IPV4) 406 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP; 407 408 if (hv->rss_hash & NDIS_HASH_IPV6) 409 rss_conf->rss_hf |= ETH_RSS_IPV6; 410 411 if (hv->rss_hash & NDIS_HASH_IPV6_EX) 412 rss_conf->rss_hf |= ETH_RSS_IPV6_EX; 413 414 if (hv->rss_hash & NDIS_HASH_TCP_IPV6) 415 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP; 416 417 if (hv->rss_hash & NDIS_HASH_TCP_IPV6_EX) 418 rss_conf->rss_hf |= ETH_RSS_IPV6_TCP_EX; 419 420 return 0; 421 } 422 423 static int 424 hn_dev_promiscuous_enable(struct rte_eth_dev *dev) 425 { 426 struct hn_data *hv = dev->data->dev_private; 427 428 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); 429 return hn_vf_promiscuous_enable(dev); 430 } 431 432 static int 433 hn_dev_promiscuous_disable(struct rte_eth_dev *dev) 434 { 435 struct hn_data *hv = dev->data->dev_private; 436 uint32_t filter; 437 438 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; 439 if (dev->data->all_multicast) 440 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; 441 hn_rndis_set_rxfilter(hv, filter); 442 return hn_vf_promiscuous_disable(dev); 443 } 444 445 static int 446 hn_dev_allmulticast_enable(struct rte_eth_dev *dev) 447 { 448 struct hn_data *hv = dev->data->dev_private; 449 450 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 451 NDIS_PACKET_TYPE_ALL_MULTICAST | 452 NDIS_PACKET_TYPE_BROADCAST); 453 return hn_vf_allmulticast_enable(dev); 454 } 455 456 static int 457 hn_dev_allmulticast_disable(struct rte_eth_dev *dev) 458 { 459 struct hn_data *hv = dev->data->dev_private; 460 461 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 462 NDIS_PACKET_TYPE_BROADCAST); 463 return hn_vf_allmulticast_disable(dev); 464 } 465 466 static int 467 hn_dev_mc_addr_list(struct rte_eth_dev *dev, 468 struct rte_ether_addr *mc_addr_set, 469 uint32_t nb_mc_addr) 470 { 471 /* No filtering on the synthetic path, but can do it on VF */ 472 return hn_vf_mc_addr_list(dev, mc_addr_set, nb_mc_addr); 473 } 474 475 /* Setup shared rx/tx queue data */ 476 static int hn_subchan_configure(struct hn_data *hv, 477 uint32_t subchan) 478 { 479 struct vmbus_channel *primary = hn_primary_chan(hv); 480 int err; 481 unsigned int retry = 0; 482 483 PMD_DRV_LOG(DEBUG, 484 "open %u subchannels", subchan); 485 486 /* Send create sub channels command */ 487 err = hn_nvs_alloc_subchans(hv, &subchan); 488 if (err) 489 return err; 490 491 while (subchan > 0) { 492 struct vmbus_channel *new_sc; 493 uint16_t chn_index; 494 495 err = rte_vmbus_subchan_open(primary, &new_sc); 496 if (err == -ENOENT && ++retry < 1000) { 497 /* This can happen if not ready yet */ 498 rte_delay_ms(10); 499 continue; 500 } 501 502 if (err) { 503 PMD_DRV_LOG(ERR, 504 "open subchannel failed: %d", err); 505 return err; 506 } 507 508 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); 509 510 retry = 0; 511 chn_index = rte_vmbus_sub_channel_index(new_sc); 512 if (chn_index == 0 || chn_index > hv->max_queues) { 513 PMD_DRV_LOG(ERR, 514 "Invalid subchannel offermsg channel %u", 515 chn_index); 516 return -EIO; 517 } 518 519 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); 520 hv->channels[chn_index] = new_sc; 521 --subchan; 522 } 523 524 return err; 525 } 526 527 static int hn_dev_configure(struct rte_eth_dev *dev) 528 { 529 struct rte_eth_conf *dev_conf = &dev->data->dev_conf; 530 struct rte_eth_rss_conf *rss_conf = &dev_conf->rx_adv_conf.rss_conf; 531 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; 532 const struct rte_eth_txmode *txmode = &dev_conf->txmode; 533 struct hn_data *hv = dev->data->dev_private; 534 uint64_t unsupported; 535 int i, err, subchan; 536 537 PMD_INIT_FUNC_TRACE(); 538 539 if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) 540 dev_conf->rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; 541 542 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; 543 if (unsupported) { 544 PMD_DRV_LOG(NOTICE, 545 "unsupported TX offload: %#" PRIx64, 546 unsupported); 547 return -EINVAL; 548 } 549 550 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; 551 if (unsupported) { 552 PMD_DRV_LOG(NOTICE, 553 "unsupported RX offload: %#" PRIx64, 554 rxmode->offloads); 555 return -EINVAL; 556 } 557 558 hv->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP); 559 560 err = hn_rndis_conf_offload(hv, txmode->offloads, 561 rxmode->offloads); 562 if (err) { 563 PMD_DRV_LOG(NOTICE, 564 "offload configure failed"); 565 return err; 566 } 567 568 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, 569 dev->data->nb_tx_queues); 570 571 for (i = 0; i < NDIS_HASH_INDCNT; i++) 572 hv->rss_ind[i] = i % dev->data->nb_rx_queues; 573 574 hn_rss_hash_init(hv, rss_conf); 575 576 subchan = hv->num_queues - 1; 577 if (subchan > 0) { 578 err = hn_subchan_configure(hv, subchan); 579 if (err) { 580 PMD_DRV_LOG(NOTICE, 581 "subchannel configuration failed"); 582 return err; 583 } 584 585 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 586 if (err) { 587 PMD_DRV_LOG(NOTICE, 588 "rss disable failed"); 589 return err; 590 } 591 592 if (rss_conf->rss_hf != 0) { 593 err = hn_rndis_conf_rss(hv, 0); 594 if (err) { 595 PMD_DRV_LOG(NOTICE, 596 "initial RSS config failed"); 597 return err; 598 } 599 } 600 } 601 602 return hn_vf_configure(dev, dev_conf); 603 } 604 605 static int hn_dev_stats_get(struct rte_eth_dev *dev, 606 struct rte_eth_stats *stats) 607 { 608 unsigned int i; 609 610 hn_vf_stats_get(dev, stats); 611 612 for (i = 0; i < dev->data->nb_tx_queues; i++) { 613 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 614 615 if (!txq) 616 continue; 617 618 stats->opackets += txq->stats.packets; 619 stats->obytes += txq->stats.bytes; 620 stats->oerrors += txq->stats.errors; 621 622 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 623 stats->q_opackets[i] = txq->stats.packets; 624 stats->q_obytes[i] = txq->stats.bytes; 625 } 626 } 627 628 for (i = 0; i < dev->data->nb_rx_queues; i++) { 629 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 630 631 if (!rxq) 632 continue; 633 634 stats->ipackets += rxq->stats.packets; 635 stats->ibytes += rxq->stats.bytes; 636 stats->ierrors += rxq->stats.errors; 637 stats->imissed += rxq->stats.ring_full; 638 639 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 640 stats->q_ipackets[i] = rxq->stats.packets; 641 stats->q_ibytes[i] = rxq->stats.bytes; 642 } 643 } 644 645 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; 646 return 0; 647 } 648 649 static int 650 hn_dev_stats_reset(struct rte_eth_dev *dev) 651 { 652 unsigned int i; 653 654 PMD_INIT_FUNC_TRACE(); 655 656 for (i = 0; i < dev->data->nb_tx_queues; i++) { 657 struct hn_tx_queue *txq = dev->data->tx_queues[i]; 658 659 if (!txq) 660 continue; 661 memset(&txq->stats, 0, sizeof(struct hn_stats)); 662 } 663 664 for (i = 0; i < dev->data->nb_rx_queues; i++) { 665 struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 666 667 if (!rxq) 668 continue; 669 670 memset(&rxq->stats, 0, sizeof(struct hn_stats)); 671 } 672 673 return 0; 674 } 675 676 static int 677 hn_dev_xstats_reset(struct rte_eth_dev *dev) 678 { 679 int ret; 680 681 ret = hn_dev_stats_reset(dev); 682 if (ret != 0) 683 return 0; 684 685 return hn_vf_xstats_reset(dev); 686 } 687 688 static int 689 hn_dev_xstats_count(struct rte_eth_dev *dev) 690 { 691 int ret, count; 692 693 count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings); 694 count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 695 696 ret = hn_vf_xstats_get_names(dev, NULL, 0); 697 if (ret < 0) 698 return ret; 699 700 return count + ret; 701 } 702 703 static int 704 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 705 struct rte_eth_xstat_name *xstats_names, 706 unsigned int limit) 707 { 708 unsigned int i, t, count = 0; 709 int ret; 710 711 if (!xstats_names) 712 return hn_dev_xstats_count(dev); 713 714 /* Note: limit checked in rte_eth_xstats_names() */ 715 for (i = 0; i < dev->data->nb_tx_queues; i++) { 716 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 717 718 if (!txq) 719 continue; 720 721 if (count >= limit) 722 break; 723 724 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 725 snprintf(xstats_names[count++].name, 726 RTE_ETH_XSTATS_NAME_SIZE, 727 "tx_q%u_%s", i, hn_stat_strings[t].name); 728 } 729 730 for (i = 0; i < dev->data->nb_rx_queues; i++) { 731 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 732 733 if (!rxq) 734 continue; 735 736 if (count >= limit) 737 break; 738 739 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 740 snprintf(xstats_names[count++].name, 741 RTE_ETH_XSTATS_NAME_SIZE, 742 "rx_q%u_%s", i, 743 hn_stat_strings[t].name); 744 } 745 746 ret = hn_vf_xstats_get_names(dev, xstats_names + count, 747 limit - count); 748 if (ret < 0) 749 return ret; 750 751 return count + ret; 752 } 753 754 static int 755 hn_dev_xstats_get(struct rte_eth_dev *dev, 756 struct rte_eth_xstat *xstats, 757 unsigned int n) 758 { 759 unsigned int i, t, count = 0; 760 const unsigned int nstats = hn_dev_xstats_count(dev); 761 const char *stats; 762 int ret; 763 764 PMD_INIT_FUNC_TRACE(); 765 766 if (n < nstats) 767 return nstats; 768 769 for (i = 0; i < dev->data->nb_tx_queues; i++) { 770 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 771 772 if (!txq) 773 continue; 774 775 stats = (const char *)&txq->stats; 776 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 777 xstats[count].id = count; 778 xstats[count].value = *(const uint64_t *) 779 (stats + hn_stat_strings[t].offset); 780 } 781 } 782 783 for (i = 0; i < dev->data->nb_rx_queues; i++) { 784 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 785 786 if (!rxq) 787 continue; 788 789 stats = (const char *)&rxq->stats; 790 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 791 xstats[count].id = count; 792 xstats[count].value = *(const uint64_t *) 793 (stats + hn_stat_strings[t].offset); 794 } 795 } 796 797 ret = hn_vf_xstats_get(dev, xstats, count, n); 798 if (ret < 0) 799 return ret; 800 801 return count + ret; 802 } 803 804 static int 805 hn_dev_start(struct rte_eth_dev *dev) 806 { 807 struct hn_data *hv = dev->data->dev_private; 808 int error; 809 810 PMD_INIT_FUNC_TRACE(); 811 812 error = hn_rndis_set_rxfilter(hv, 813 NDIS_PACKET_TYPE_BROADCAST | 814 NDIS_PACKET_TYPE_ALL_MULTICAST | 815 NDIS_PACKET_TYPE_DIRECTED); 816 if (error) 817 return error; 818 819 error = hn_vf_start(dev); 820 if (error) 821 hn_rndis_set_rxfilter(hv, 0); 822 823 /* Initialize Link state */ 824 if (error == 0) 825 hn_dev_link_update(dev, 0); 826 827 return error; 828 } 829 830 static int 831 hn_dev_stop(struct rte_eth_dev *dev) 832 { 833 struct hn_data *hv = dev->data->dev_private; 834 835 PMD_INIT_FUNC_TRACE(); 836 dev->data->dev_started = 0; 837 838 hn_rndis_set_rxfilter(hv, 0); 839 return hn_vf_stop(dev); 840 } 841 842 static int 843 hn_dev_close(struct rte_eth_dev *dev) 844 { 845 int ret; 846 847 PMD_INIT_FUNC_TRACE(); 848 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 849 return 0; 850 851 ret = hn_vf_close(dev); 852 hn_dev_free_queues(dev); 853 854 return ret; 855 } 856 857 static const struct eth_dev_ops hn_eth_dev_ops = { 858 .dev_configure = hn_dev_configure, 859 .dev_start = hn_dev_start, 860 .dev_stop = hn_dev_stop, 861 .dev_close = hn_dev_close, 862 .dev_infos_get = hn_dev_info_get, 863 .txq_info_get = hn_dev_tx_queue_info, 864 .rxq_info_get = hn_dev_rx_queue_info, 865 .dev_supported_ptypes_get = hn_vf_supported_ptypes, 866 .promiscuous_enable = hn_dev_promiscuous_enable, 867 .promiscuous_disable = hn_dev_promiscuous_disable, 868 .allmulticast_enable = hn_dev_allmulticast_enable, 869 .allmulticast_disable = hn_dev_allmulticast_disable, 870 .set_mc_addr_list = hn_dev_mc_addr_list, 871 .reta_update = hn_rss_reta_update, 872 .reta_query = hn_rss_reta_query, 873 .rss_hash_update = hn_rss_hash_update, 874 .rss_hash_conf_get = hn_rss_hash_conf_get, 875 .tx_queue_setup = hn_dev_tx_queue_setup, 876 .tx_queue_release = hn_dev_tx_queue_release, 877 .tx_done_cleanup = hn_dev_tx_done_cleanup, 878 .rx_queue_setup = hn_dev_rx_queue_setup, 879 .rx_queue_release = hn_dev_rx_queue_release, 880 .link_update = hn_dev_link_update, 881 .stats_get = hn_dev_stats_get, 882 .stats_reset = hn_dev_stats_reset, 883 .xstats_get = hn_dev_xstats_get, 884 .xstats_get_names = hn_dev_xstats_get_names, 885 .xstats_reset = hn_dev_xstats_reset, 886 }; 887 888 /* 889 * Setup connection between PMD and kernel. 890 */ 891 static int 892 hn_attach(struct hn_data *hv, unsigned int mtu) 893 { 894 int error; 895 896 /* Attach NVS */ 897 error = hn_nvs_attach(hv, mtu); 898 if (error) 899 goto failed_nvs; 900 901 /* Attach RNDIS */ 902 error = hn_rndis_attach(hv); 903 if (error) 904 goto failed_rndis; 905 906 /* 907 * NOTE: 908 * Under certain conditions on certain versions of Hyper-V, 909 * the RNDIS rxfilter is _not_ zero on the hypervisor side 910 * after the successful RNDIS initialization. 911 */ 912 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 913 return 0; 914 failed_rndis: 915 hn_nvs_detach(hv); 916 failed_nvs: 917 return error; 918 } 919 920 static void 921 hn_detach(struct hn_data *hv) 922 { 923 hn_nvs_detach(hv); 924 hn_rndis_detach(hv); 925 } 926 927 static int 928 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 929 { 930 struct hn_data *hv = eth_dev->data->dev_private; 931 struct rte_device *device = eth_dev->device; 932 struct rte_vmbus_device *vmbus; 933 unsigned int rxr_cnt; 934 int err, max_chan; 935 936 PMD_INIT_FUNC_TRACE(); 937 938 vmbus = container_of(device, struct rte_vmbus_device, device); 939 eth_dev->dev_ops = &hn_eth_dev_ops; 940 eth_dev->rx_queue_count = hn_dev_rx_queue_count; 941 eth_dev->rx_descriptor_status = hn_dev_rx_queue_status; 942 eth_dev->tx_descriptor_status = hn_dev_tx_descriptor_status; 943 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 944 eth_dev->rx_pkt_burst = &hn_recv_pkts; 945 946 /* 947 * for secondary processes, we don't initialize any further as primary 948 * has already done this work. 949 */ 950 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 951 return 0; 952 953 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS; 954 955 /* Since Hyper-V only supports one MAC address */ 956 eth_dev->data->mac_addrs = rte_calloc("hv_mac", HN_MAX_MAC_ADDRS, 957 sizeof(struct rte_ether_addr), 0); 958 if (eth_dev->data->mac_addrs == NULL) { 959 PMD_INIT_LOG(ERR, 960 "Failed to allocate memory store MAC addresses"); 961 return -ENOMEM; 962 } 963 964 hv->vmbus = vmbus; 965 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; 966 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; 967 hv->port_id = eth_dev->data->port_id; 968 hv->latency = HN_CHAN_LATENCY_NS; 969 hv->max_queues = 1; 970 rte_rwlock_init(&hv->vf_lock); 971 hv->vf_port = HN_INVALID_PORT; 972 973 err = hn_parse_args(eth_dev); 974 if (err) 975 return err; 976 977 strlcpy(hv->owner.name, eth_dev->device->name, 978 RTE_ETH_MAX_OWNER_NAME_LEN); 979 err = rte_eth_dev_owner_new(&hv->owner.id); 980 if (err) { 981 PMD_INIT_LOG(ERR, "Can not get owner id"); 982 return err; 983 } 984 985 /* Initialize primary channel input for control operations */ 986 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 987 if (err) 988 return err; 989 990 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 991 992 hv->primary = hn_rx_queue_alloc(hv, 0, 993 eth_dev->device->numa_node); 994 995 if (!hv->primary) 996 return -ENOMEM; 997 998 err = hn_attach(hv, RTE_ETHER_MTU); 999 if (err) 1000 goto failed; 1001 1002 err = hn_chim_init(eth_dev); 1003 if (err) 1004 goto failed; 1005 1006 err = hn_rndis_get_eaddr(hv, eth_dev->data->mac_addrs->addr_bytes); 1007 if (err) 1008 goto failed; 1009 1010 /* Multi queue requires later versions of windows server */ 1011 if (hv->nvs_ver < NVS_VERSION_5) 1012 return 0; 1013 1014 max_chan = rte_vmbus_max_channels(vmbus); 1015 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 1016 if (max_chan <= 0) 1017 goto failed; 1018 1019 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 1020 rxr_cnt = 1; 1021 1022 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 1023 1024 /* If VF was reported but not added, do it now */ 1025 if (hv->vf_present && !hn_vf_attached(hv)) { 1026 PMD_INIT_LOG(DEBUG, "Adding VF device"); 1027 1028 err = hn_vf_add(eth_dev, hv); 1029 if (err) 1030 hv->vf_present = 0; 1031 } 1032 1033 return 0; 1034 1035 failed: 1036 PMD_INIT_LOG(NOTICE, "device init failed"); 1037 1038 hn_chim_uninit(eth_dev); 1039 hn_detach(hv); 1040 return err; 1041 } 1042 1043 static int 1044 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 1045 { 1046 struct hn_data *hv = eth_dev->data->dev_private; 1047 int ret, ret_stop; 1048 1049 PMD_INIT_FUNC_TRACE(); 1050 1051 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 1052 return 0; 1053 1054 ret_stop = hn_dev_stop(eth_dev); 1055 hn_dev_close(eth_dev); 1056 1057 hn_detach(hv); 1058 hn_chim_uninit(eth_dev); 1059 rte_vmbus_chan_close(hv->primary->chan); 1060 rte_free(hv->primary); 1061 ret = rte_eth_dev_owner_delete(hv->owner.id); 1062 if (ret != 0) 1063 return ret; 1064 1065 return ret_stop; 1066 } 1067 1068 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 1069 struct rte_vmbus_device *dev) 1070 { 1071 struct rte_eth_dev *eth_dev; 1072 int ret; 1073 1074 PMD_INIT_FUNC_TRACE(); 1075 1076 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 1077 if (!eth_dev) 1078 return -ENOMEM; 1079 1080 ret = eth_hn_dev_init(eth_dev); 1081 if (ret) 1082 eth_dev_vmbus_release(eth_dev); 1083 else 1084 rte_eth_dev_probing_finish(eth_dev); 1085 1086 return ret; 1087 } 1088 1089 static int eth_hn_remove(struct rte_vmbus_device *dev) 1090 { 1091 struct rte_eth_dev *eth_dev; 1092 int ret; 1093 1094 PMD_INIT_FUNC_TRACE(); 1095 1096 eth_dev = rte_eth_dev_allocated(dev->device.name); 1097 if (!eth_dev) 1098 return 0; /* port already released */ 1099 1100 ret = eth_hn_dev_uninit(eth_dev); 1101 if (ret) 1102 return ret; 1103 1104 eth_dev_vmbus_release(eth_dev); 1105 return 0; 1106 } 1107 1108 /* Network device GUID */ 1109 static const rte_uuid_t hn_net_ids[] = { 1110 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 1111 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 1112 { 0 } 1113 }; 1114 1115 static struct rte_vmbus_driver rte_netvsc_pmd = { 1116 .id_table = hn_net_ids, 1117 .probe = eth_hn_probe, 1118 .remove = eth_hn_remove, 1119 }; 1120 1121 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 1122 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 1123 RTE_LOG_REGISTER(hn_logtype_init, pmd.net.netvsc.init, NOTICE); 1124 RTE_LOG_REGISTER(hn_logtype_driver, pmd.net.netvsc.driver, NOTICE); 1125