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 /* free ether device */ 138 rte_eth_dev_release_port(eth_dev); 139 140 eth_dev->device = NULL; 141 eth_dev->intr_handle = NULL; 142 } 143 144 /* handle "latency=X" from devargs */ 145 static int hn_set_latency(const char *key, const char *value, void *opaque) 146 { 147 struct hn_data *hv = opaque; 148 char *endp = NULL; 149 unsigned long lat; 150 151 errno = 0; 152 lat = strtoul(value, &endp, 0); 153 154 if (*value == '\0' || *endp != '\0') { 155 PMD_DRV_LOG(ERR, "invalid parameter %s=%s", key, value); 156 return -EINVAL; 157 } 158 159 PMD_DRV_LOG(DEBUG, "set latency %lu usec", lat); 160 161 hv->latency = lat * 1000; /* usec to nsec */ 162 return 0; 163 } 164 165 /* Parse device arguments */ 166 static int hn_parse_args(const struct rte_eth_dev *dev) 167 { 168 struct hn_data *hv = dev->data->dev_private; 169 struct rte_devargs *devargs = dev->device->devargs; 170 static const char * const valid_keys[] = { 171 "latency", 172 NULL 173 }; 174 struct rte_kvargs *kvlist; 175 int ret; 176 177 if (!devargs) 178 return 0; 179 180 PMD_INIT_LOG(DEBUG, "device args %s %s", 181 devargs->name, devargs->args); 182 183 kvlist = rte_kvargs_parse(devargs->args, valid_keys); 184 if (!kvlist) { 185 PMD_DRV_LOG(NOTICE, "invalid parameters"); 186 return -EINVAL; 187 } 188 189 ret = rte_kvargs_process(kvlist, "latency", hn_set_latency, hv); 190 if (ret) 191 PMD_DRV_LOG(ERR, "Unable to process latency arg\n"); 192 193 rte_kvargs_free(kvlist); 194 return ret; 195 } 196 197 /* Update link status. 198 * Note: the DPDK definition of "wait_to_complete" 199 * means block this call until link is up. 200 * which is not worth supporting. 201 */ 202 int 203 hn_dev_link_update(struct rte_eth_dev *dev, 204 int wait_to_complete) 205 { 206 struct hn_data *hv = dev->data->dev_private; 207 struct rte_eth_link link, old; 208 int error; 209 210 old = dev->data->dev_link; 211 212 error = hn_rndis_get_linkstatus(hv); 213 if (error) 214 return error; 215 216 hn_rndis_get_linkspeed(hv); 217 218 hn_vf_link_update(dev, wait_to_complete); 219 220 link = (struct rte_eth_link) { 221 .link_duplex = ETH_LINK_FULL_DUPLEX, 222 .link_autoneg = ETH_LINK_SPEED_FIXED, 223 .link_speed = hv->link_speed / 10000, 224 }; 225 226 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED) 227 link.link_status = ETH_LINK_UP; 228 else 229 link.link_status = ETH_LINK_DOWN; 230 231 if (old.link_status == link.link_status) 232 return 0; 233 234 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id, 235 (link.link_status == ETH_LINK_UP) ? "up" : "down"); 236 237 return rte_eth_linkstatus_set(dev, &link); 238 } 239 240 static int hn_dev_info_get(struct rte_eth_dev *dev, 241 struct rte_eth_dev_info *dev_info) 242 { 243 struct hn_data *hv = dev->data->dev_private; 244 int rc; 245 246 dev_info->speed_capa = ETH_LINK_SPEED_10G; 247 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE; 248 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN; 249 dev_info->max_mac_addrs = 1; 250 251 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ; 252 dev_info->flow_type_rss_offloads = hv->rss_offloads; 253 dev_info->reta_size = ETH_RSS_RETA_SIZE_128; 254 255 dev_info->max_rx_queues = hv->max_queues; 256 dev_info->max_tx_queues = hv->max_queues; 257 258 dev_info->tx_desc_lim.nb_min = 1; 259 dev_info->tx_desc_lim.nb_max = 4096; 260 261 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 262 return 0; 263 264 /* fills in rx and tx offload capability */ 265 rc = hn_rndis_get_offload(hv, dev_info); 266 if (rc != 0) 267 return rc; 268 269 /* merges the offload and queues of vf */ 270 return hn_vf_info_get(hv, dev_info); 271 } 272 273 static int hn_rss_reta_update(struct rte_eth_dev *dev, 274 struct rte_eth_rss_reta_entry64 *reta_conf, 275 uint16_t reta_size) 276 { 277 struct hn_data *hv = dev->data->dev_private; 278 unsigned int i; 279 int err; 280 281 PMD_INIT_FUNC_TRACE(); 282 283 if (reta_size != NDIS_HASH_INDCNT) { 284 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 285 return -EINVAL; 286 } 287 288 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 289 uint16_t idx = i / RTE_RETA_GROUP_SIZE; 290 uint16_t shift = i % RTE_RETA_GROUP_SIZE; 291 uint64_t mask = (uint64_t)1 << shift; 292 293 if (reta_conf[idx].mask & mask) 294 hv->rss_ind[i] = reta_conf[idx].reta[shift]; 295 } 296 297 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 298 if (err) { 299 PMD_DRV_LOG(NOTICE, 300 "rss disable failed"); 301 return err; 302 } 303 304 err = hn_rndis_conf_rss(hv, 0); 305 if (err) { 306 PMD_DRV_LOG(NOTICE, 307 "reta reconfig failed"); 308 return err; 309 } 310 311 return hn_vf_reta_hash_update(dev, reta_conf, reta_size); 312 } 313 314 static int hn_rss_reta_query(struct rte_eth_dev *dev, 315 struct rte_eth_rss_reta_entry64 *reta_conf, 316 uint16_t reta_size) 317 { 318 struct hn_data *hv = dev->data->dev_private; 319 unsigned int i; 320 321 PMD_INIT_FUNC_TRACE(); 322 323 if (reta_size != NDIS_HASH_INDCNT) { 324 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); 325 return -EINVAL; 326 } 327 328 for (i = 0; i < NDIS_HASH_INDCNT; i++) { 329 uint16_t idx = i / RTE_RETA_GROUP_SIZE; 330 uint16_t shift = i % RTE_RETA_GROUP_SIZE; 331 uint64_t mask = (uint64_t)1 << shift; 332 333 if (reta_conf[idx].mask & mask) 334 reta_conf[idx].reta[shift] = hv->rss_ind[i]; 335 } 336 return 0; 337 } 338 339 static void hn_rss_hash_init(struct hn_data *hv, 340 const struct rte_eth_rss_conf *rss_conf) 341 { 342 /* Convert from DPDK RSS hash flags to NDIS hash flags */ 343 hv->rss_hash = NDIS_HASH_FUNCTION_TOEPLITZ; 344 345 if (rss_conf->rss_hf & ETH_RSS_IPV4) 346 hv->rss_hash |= NDIS_HASH_IPV4; 347 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) 348 hv->rss_hash |= NDIS_HASH_TCP_IPV4; 349 if (rss_conf->rss_hf & ETH_RSS_IPV6) 350 hv->rss_hash |= NDIS_HASH_IPV6; 351 if (rss_conf->rss_hf & ETH_RSS_IPV6_EX) 352 hv->rss_hash |= NDIS_HASH_IPV6_EX; 353 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP) 354 hv->rss_hash |= NDIS_HASH_TCP_IPV6; 355 if (rss_conf->rss_hf & ETH_RSS_IPV6_TCP_EX) 356 hv->rss_hash |= NDIS_HASH_TCP_IPV6_EX; 357 358 memcpy(hv->rss_key, rss_conf->rss_key ? : rss_default_key, 359 NDIS_HASH_KEYSIZE_TOEPLITZ); 360 } 361 362 static int hn_rss_hash_update(struct rte_eth_dev *dev, 363 struct rte_eth_rss_conf *rss_conf) 364 { 365 struct hn_data *hv = dev->data->dev_private; 366 int err; 367 368 PMD_INIT_FUNC_TRACE(); 369 370 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 371 if (err) { 372 PMD_DRV_LOG(NOTICE, 373 "rss disable failed"); 374 return err; 375 } 376 377 hn_rss_hash_init(hv, rss_conf); 378 379 err = hn_rndis_conf_rss(hv, 0); 380 if (err) { 381 PMD_DRV_LOG(NOTICE, 382 "rss reconfig failed (RSS disabled)"); 383 return err; 384 } 385 386 387 return hn_vf_rss_hash_update(dev, rss_conf); 388 } 389 390 static int hn_rss_hash_conf_get(struct rte_eth_dev *dev, 391 struct rte_eth_rss_conf *rss_conf) 392 { 393 struct hn_data *hv = dev->data->dev_private; 394 395 PMD_INIT_FUNC_TRACE(); 396 397 if (hv->ndis_ver < NDIS_VERSION_6_20) { 398 PMD_DRV_LOG(DEBUG, "RSS not supported on this host"); 399 return -EOPNOTSUPP; 400 } 401 402 rss_conf->rss_key_len = NDIS_HASH_KEYSIZE_TOEPLITZ; 403 if (rss_conf->rss_key) 404 memcpy(rss_conf->rss_key, hv->rss_key, 405 NDIS_HASH_KEYSIZE_TOEPLITZ); 406 407 rss_conf->rss_hf = 0; 408 if (hv->rss_hash & NDIS_HASH_IPV4) 409 rss_conf->rss_hf |= ETH_RSS_IPV4; 410 411 if (hv->rss_hash & NDIS_HASH_TCP_IPV4) 412 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP; 413 414 if (hv->rss_hash & NDIS_HASH_IPV6) 415 rss_conf->rss_hf |= ETH_RSS_IPV6; 416 417 if (hv->rss_hash & NDIS_HASH_IPV6_EX) 418 rss_conf->rss_hf |= ETH_RSS_IPV6_EX; 419 420 if (hv->rss_hash & NDIS_HASH_TCP_IPV6) 421 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP; 422 423 if (hv->rss_hash & NDIS_HASH_TCP_IPV6_EX) 424 rss_conf->rss_hf |= ETH_RSS_IPV6_TCP_EX; 425 426 return 0; 427 } 428 429 static int 430 hn_dev_promiscuous_enable(struct rte_eth_dev *dev) 431 { 432 struct hn_data *hv = dev->data->dev_private; 433 434 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); 435 return hn_vf_promiscuous_enable(dev); 436 } 437 438 static int 439 hn_dev_promiscuous_disable(struct rte_eth_dev *dev) 440 { 441 struct hn_data *hv = dev->data->dev_private; 442 uint32_t filter; 443 444 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; 445 if (dev->data->all_multicast) 446 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; 447 hn_rndis_set_rxfilter(hv, filter); 448 return hn_vf_promiscuous_disable(dev); 449 } 450 451 static int 452 hn_dev_allmulticast_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_DIRECTED | 457 NDIS_PACKET_TYPE_ALL_MULTICAST | 458 NDIS_PACKET_TYPE_BROADCAST); 459 return hn_vf_allmulticast_enable(dev); 460 } 461 462 static int 463 hn_dev_allmulticast_disable(struct rte_eth_dev *dev) 464 { 465 struct hn_data *hv = dev->data->dev_private; 466 467 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 468 NDIS_PACKET_TYPE_BROADCAST); 469 return hn_vf_allmulticast_disable(dev); 470 } 471 472 static int 473 hn_dev_mc_addr_list(struct rte_eth_dev *dev, 474 struct rte_ether_addr *mc_addr_set, 475 uint32_t nb_mc_addr) 476 { 477 /* No filtering on the synthetic path, but can do it on VF */ 478 return hn_vf_mc_addr_list(dev, mc_addr_set, nb_mc_addr); 479 } 480 481 /* Setup shared rx/tx queue data */ 482 static int hn_subchan_configure(struct hn_data *hv, 483 uint32_t subchan) 484 { 485 struct vmbus_channel *primary = hn_primary_chan(hv); 486 int err; 487 unsigned int retry = 0; 488 489 PMD_DRV_LOG(DEBUG, 490 "open %u subchannels", subchan); 491 492 /* Send create sub channels command */ 493 err = hn_nvs_alloc_subchans(hv, &subchan); 494 if (err) 495 return err; 496 497 while (subchan > 0) { 498 struct vmbus_channel *new_sc; 499 uint16_t chn_index; 500 501 err = rte_vmbus_subchan_open(primary, &new_sc); 502 if (err == -ENOENT && ++retry < 1000) { 503 /* This can happen if not ready yet */ 504 rte_delay_ms(10); 505 continue; 506 } 507 508 if (err) { 509 PMD_DRV_LOG(ERR, 510 "open subchannel failed: %d", err); 511 return err; 512 } 513 514 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); 515 516 retry = 0; 517 chn_index = rte_vmbus_sub_channel_index(new_sc); 518 if (chn_index == 0 || chn_index > hv->max_queues) { 519 PMD_DRV_LOG(ERR, 520 "Invalid subchannel offermsg channel %u", 521 chn_index); 522 return -EIO; 523 } 524 525 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); 526 hv->channels[chn_index] = new_sc; 527 --subchan; 528 } 529 530 return err; 531 } 532 533 static int hn_dev_configure(struct rte_eth_dev *dev) 534 { 535 struct rte_eth_conf *dev_conf = &dev->data->dev_conf; 536 struct rte_eth_rss_conf *rss_conf = &dev_conf->rx_adv_conf.rss_conf; 537 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; 538 const struct rte_eth_txmode *txmode = &dev_conf->txmode; 539 struct hn_data *hv = dev->data->dev_private; 540 uint64_t unsupported; 541 int i, err, subchan; 542 543 PMD_INIT_FUNC_TRACE(); 544 545 if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) 546 dev_conf->rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; 547 548 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; 549 if (unsupported) { 550 PMD_DRV_LOG(NOTICE, 551 "unsupported TX offload: %#" PRIx64, 552 unsupported); 553 return -EINVAL; 554 } 555 556 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; 557 if (unsupported) { 558 PMD_DRV_LOG(NOTICE, 559 "unsupported RX offload: %#" PRIx64, 560 rxmode->offloads); 561 return -EINVAL; 562 } 563 564 hv->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP); 565 566 err = hn_rndis_conf_offload(hv, txmode->offloads, 567 rxmode->offloads); 568 if (err) { 569 PMD_DRV_LOG(NOTICE, 570 "offload configure failed"); 571 return err; 572 } 573 574 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, 575 dev->data->nb_tx_queues); 576 577 for (i = 0; i < NDIS_HASH_INDCNT; i++) 578 hv->rss_ind[i] = i % hv->num_queues; 579 580 hn_rss_hash_init(hv, rss_conf); 581 582 subchan = hv->num_queues - 1; 583 if (subchan > 0) { 584 err = hn_subchan_configure(hv, subchan); 585 if (err) { 586 PMD_DRV_LOG(NOTICE, 587 "subchannel configuration failed"); 588 return err; 589 } 590 591 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); 592 if (err) { 593 PMD_DRV_LOG(NOTICE, 594 "rss disable failed"); 595 return err; 596 } 597 598 err = hn_rndis_conf_rss(hv, 0); 599 if (err) { 600 PMD_DRV_LOG(NOTICE, 601 "initial RSS config failed"); 602 return err; 603 } 604 } 605 606 return hn_vf_configure(dev, dev_conf); 607 } 608 609 static int hn_dev_stats_get(struct rte_eth_dev *dev, 610 struct rte_eth_stats *stats) 611 { 612 unsigned int i; 613 614 hn_vf_stats_get(dev, stats); 615 616 for (i = 0; i < dev->data->nb_tx_queues; i++) { 617 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 618 619 if (!txq) 620 continue; 621 622 stats->opackets += txq->stats.packets; 623 stats->obytes += txq->stats.bytes; 624 stats->oerrors += txq->stats.errors; 625 626 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 627 stats->q_opackets[i] = txq->stats.packets; 628 stats->q_obytes[i] = txq->stats.bytes; 629 } 630 } 631 632 for (i = 0; i < dev->data->nb_rx_queues; i++) { 633 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 634 635 if (!rxq) 636 continue; 637 638 stats->ipackets += rxq->stats.packets; 639 stats->ibytes += rxq->stats.bytes; 640 stats->ierrors += rxq->stats.errors; 641 stats->imissed += rxq->stats.ring_full; 642 643 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 644 stats->q_ipackets[i] = rxq->stats.packets; 645 stats->q_ibytes[i] = rxq->stats.bytes; 646 } 647 } 648 649 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; 650 return 0; 651 } 652 653 static int 654 hn_dev_stats_reset(struct rte_eth_dev *dev) 655 { 656 unsigned int i; 657 658 PMD_INIT_FUNC_TRACE(); 659 660 for (i = 0; i < dev->data->nb_tx_queues; i++) { 661 struct hn_tx_queue *txq = dev->data->tx_queues[i]; 662 663 if (!txq) 664 continue; 665 memset(&txq->stats, 0, sizeof(struct hn_stats)); 666 } 667 668 for (i = 0; i < dev->data->nb_rx_queues; i++) { 669 struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 670 671 if (!rxq) 672 continue; 673 674 memset(&rxq->stats, 0, sizeof(struct hn_stats)); 675 } 676 677 return 0; 678 } 679 680 static int 681 hn_dev_xstats_reset(struct rte_eth_dev *dev) 682 { 683 int ret; 684 685 ret = hn_dev_stats_reset(dev); 686 if (ret != 0) 687 return 0; 688 689 return hn_vf_xstats_reset(dev); 690 } 691 692 static int 693 hn_dev_xstats_count(struct rte_eth_dev *dev) 694 { 695 int ret, count; 696 697 count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings); 698 count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 699 700 ret = hn_vf_xstats_get_names(dev, NULL, 0); 701 if (ret < 0) 702 return ret; 703 704 return count + ret; 705 } 706 707 static int 708 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 709 struct rte_eth_xstat_name *xstats_names, 710 unsigned int limit) 711 { 712 unsigned int i, t, count = 0; 713 int ret; 714 715 if (!xstats_names) 716 return hn_dev_xstats_count(dev); 717 718 /* Note: limit checked in rte_eth_xstats_names() */ 719 for (i = 0; i < dev->data->nb_tx_queues; i++) { 720 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 721 722 if (!txq) 723 continue; 724 725 if (count >= limit) 726 break; 727 728 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 729 snprintf(xstats_names[count++].name, 730 RTE_ETH_XSTATS_NAME_SIZE, 731 "tx_q%u_%s", i, hn_stat_strings[t].name); 732 } 733 734 for (i = 0; i < dev->data->nb_rx_queues; i++) { 735 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 736 737 if (!rxq) 738 continue; 739 740 if (count >= limit) 741 break; 742 743 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 744 snprintf(xstats_names[count++].name, 745 RTE_ETH_XSTATS_NAME_SIZE, 746 "rx_q%u_%s", i, 747 hn_stat_strings[t].name); 748 } 749 750 ret = hn_vf_xstats_get_names(dev, xstats_names + count, 751 limit - count); 752 if (ret < 0) 753 return ret; 754 755 return count + ret; 756 } 757 758 static int 759 hn_dev_xstats_get(struct rte_eth_dev *dev, 760 struct rte_eth_xstat *xstats, 761 unsigned int n) 762 { 763 unsigned int i, t, count = 0; 764 const unsigned int nstats = hn_dev_xstats_count(dev); 765 const char *stats; 766 int ret; 767 768 PMD_INIT_FUNC_TRACE(); 769 770 if (n < nstats) 771 return nstats; 772 773 for (i = 0; i < dev->data->nb_tx_queues; i++) { 774 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 775 776 if (!txq) 777 continue; 778 779 stats = (const char *)&txq->stats; 780 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 781 xstats[count].id = count; 782 xstats[count].value = *(const uint64_t *) 783 (stats + hn_stat_strings[t].offset); 784 } 785 } 786 787 for (i = 0; i < dev->data->nb_rx_queues; i++) { 788 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 789 790 if (!rxq) 791 continue; 792 793 stats = (const char *)&rxq->stats; 794 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { 795 xstats[count].id = count; 796 xstats[count].value = *(const uint64_t *) 797 (stats + hn_stat_strings[t].offset); 798 } 799 } 800 801 ret = hn_vf_xstats_get(dev, xstats, count, n); 802 if (ret < 0) 803 return ret; 804 805 return count + ret; 806 } 807 808 static int 809 hn_dev_start(struct rte_eth_dev *dev) 810 { 811 struct hn_data *hv = dev->data->dev_private; 812 int error; 813 814 PMD_INIT_FUNC_TRACE(); 815 816 error = hn_rndis_set_rxfilter(hv, 817 NDIS_PACKET_TYPE_BROADCAST | 818 NDIS_PACKET_TYPE_ALL_MULTICAST | 819 NDIS_PACKET_TYPE_DIRECTED); 820 if (error) 821 return error; 822 823 error = hn_vf_start(dev); 824 if (error) 825 hn_rndis_set_rxfilter(hv, 0); 826 827 /* Initialize Link state */ 828 if (error == 0) 829 hn_dev_link_update(dev, 0); 830 831 return error; 832 } 833 834 static void 835 hn_dev_stop(struct rte_eth_dev *dev) 836 { 837 struct hn_data *hv = dev->data->dev_private; 838 839 PMD_INIT_FUNC_TRACE(); 840 841 hn_rndis_set_rxfilter(hv, 0); 842 hn_vf_stop(dev); 843 } 844 845 static void 846 hn_dev_close(struct rte_eth_dev *dev) 847 { 848 PMD_INIT_FUNC_TRACE(); 849 850 hn_vf_close(dev); 851 hn_dev_free_queues(dev); 852 } 853 854 static const struct eth_dev_ops hn_eth_dev_ops = { 855 .dev_configure = hn_dev_configure, 856 .dev_start = hn_dev_start, 857 .dev_stop = hn_dev_stop, 858 .dev_close = hn_dev_close, 859 .dev_infos_get = hn_dev_info_get, 860 .dev_supported_ptypes_get = hn_vf_supported_ptypes, 861 .promiscuous_enable = hn_dev_promiscuous_enable, 862 .promiscuous_disable = hn_dev_promiscuous_disable, 863 .allmulticast_enable = hn_dev_allmulticast_enable, 864 .allmulticast_disable = hn_dev_allmulticast_disable, 865 .set_mc_addr_list = hn_dev_mc_addr_list, 866 .reta_update = hn_rss_reta_update, 867 .reta_query = hn_rss_reta_query, 868 .rss_hash_update = hn_rss_hash_update, 869 .rss_hash_conf_get = hn_rss_hash_conf_get, 870 .tx_queue_setup = hn_dev_tx_queue_setup, 871 .tx_queue_release = hn_dev_tx_queue_release, 872 .tx_done_cleanup = hn_dev_tx_done_cleanup, 873 .rx_queue_setup = hn_dev_rx_queue_setup, 874 .rx_queue_release = hn_dev_rx_queue_release, 875 .link_update = hn_dev_link_update, 876 .stats_get = hn_dev_stats_get, 877 .stats_reset = hn_dev_stats_reset, 878 .xstats_get = hn_dev_xstats_get, 879 .xstats_get_names = hn_dev_xstats_get_names, 880 .xstats_reset = hn_dev_xstats_reset, 881 }; 882 883 /* 884 * Setup connection between PMD and kernel. 885 */ 886 static int 887 hn_attach(struct hn_data *hv, unsigned int mtu) 888 { 889 int error; 890 891 /* Attach NVS */ 892 error = hn_nvs_attach(hv, mtu); 893 if (error) 894 goto failed_nvs; 895 896 /* Attach RNDIS */ 897 error = hn_rndis_attach(hv); 898 if (error) 899 goto failed_rndis; 900 901 /* 902 * NOTE: 903 * Under certain conditions on certain versions of Hyper-V, 904 * the RNDIS rxfilter is _not_ zero on the hypervisor side 905 * after the successful RNDIS initialization. 906 */ 907 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 908 return 0; 909 failed_rndis: 910 hn_nvs_detach(hv); 911 failed_nvs: 912 return error; 913 } 914 915 static void 916 hn_detach(struct hn_data *hv) 917 { 918 hn_nvs_detach(hv); 919 hn_rndis_detach(hv); 920 } 921 922 static int 923 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 924 { 925 struct hn_data *hv = eth_dev->data->dev_private; 926 struct rte_device *device = eth_dev->device; 927 struct rte_vmbus_device *vmbus; 928 unsigned int rxr_cnt; 929 int err, max_chan; 930 931 PMD_INIT_FUNC_TRACE(); 932 933 vmbus = container_of(device, struct rte_vmbus_device, device); 934 eth_dev->dev_ops = &hn_eth_dev_ops; 935 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 936 eth_dev->rx_pkt_burst = &hn_recv_pkts; 937 938 /* 939 * for secondary processes, we don't initialize any further as primary 940 * has already done this work. 941 */ 942 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 943 return 0; 944 945 /* Since Hyper-V only supports one MAC address */ 946 eth_dev->data->mac_addrs = rte_calloc("hv_mac", HN_MAX_MAC_ADDRS, 947 sizeof(struct rte_ether_addr), 0); 948 if (eth_dev->data->mac_addrs == NULL) { 949 PMD_INIT_LOG(ERR, 950 "Failed to allocate memory store MAC addresses"); 951 return -ENOMEM; 952 } 953 954 hv->vmbus = vmbus; 955 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; 956 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; 957 hv->port_id = eth_dev->data->port_id; 958 hv->latency = HN_CHAN_LATENCY_NS; 959 hv->max_queues = 1; 960 rte_spinlock_init(&hv->vf_lock); 961 hv->vf_port = HN_INVALID_PORT; 962 963 err = hn_parse_args(eth_dev); 964 if (err) 965 return err; 966 967 strlcpy(hv->owner.name, eth_dev->device->name, 968 RTE_ETH_MAX_OWNER_NAME_LEN); 969 err = rte_eth_dev_owner_new(&hv->owner.id); 970 if (err) { 971 PMD_INIT_LOG(ERR, "Can not get owner id"); 972 return err; 973 } 974 975 /* Initialize primary channel input for control operations */ 976 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 977 if (err) 978 return err; 979 980 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 981 982 hv->primary = hn_rx_queue_alloc(hv, 0, 983 eth_dev->device->numa_node); 984 985 if (!hv->primary) 986 return -ENOMEM; 987 988 err = hn_attach(hv, RTE_ETHER_MTU); 989 if (err) 990 goto failed; 991 992 err = hn_chim_init(eth_dev); 993 if (err) 994 goto failed; 995 996 err = hn_rndis_get_eaddr(hv, eth_dev->data->mac_addrs->addr_bytes); 997 if (err) 998 goto failed; 999 1000 /* Multi queue requires later versions of windows server */ 1001 if (hv->nvs_ver < NVS_VERSION_5) 1002 return 0; 1003 1004 max_chan = rte_vmbus_max_channels(vmbus); 1005 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 1006 if (max_chan <= 0) 1007 goto failed; 1008 1009 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 1010 rxr_cnt = 1; 1011 1012 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 1013 1014 /* If VF was reported but not added, do it now */ 1015 if (hv->vf_present && !hn_vf_attached(hv)) { 1016 PMD_INIT_LOG(DEBUG, "Adding VF device"); 1017 1018 err = hn_vf_add(eth_dev, hv); 1019 if (err) 1020 hv->vf_present = 0; 1021 } 1022 1023 return 0; 1024 1025 failed: 1026 PMD_INIT_LOG(NOTICE, "device init failed"); 1027 1028 hn_chim_uninit(eth_dev); 1029 hn_detach(hv); 1030 return err; 1031 } 1032 1033 static int 1034 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 1035 { 1036 struct hn_data *hv = eth_dev->data->dev_private; 1037 int ret; 1038 1039 PMD_INIT_FUNC_TRACE(); 1040 1041 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 1042 return 0; 1043 1044 hn_dev_stop(eth_dev); 1045 hn_dev_close(eth_dev); 1046 1047 eth_dev->dev_ops = NULL; 1048 eth_dev->tx_pkt_burst = NULL; 1049 eth_dev->rx_pkt_burst = NULL; 1050 1051 hn_detach(hv); 1052 hn_chim_uninit(eth_dev); 1053 rte_vmbus_chan_close(hv->primary->chan); 1054 rte_free(hv->primary); 1055 ret = rte_eth_dev_owner_delete(hv->owner.id); 1056 if (ret != 0) 1057 return ret; 1058 1059 return 0; 1060 } 1061 1062 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 1063 struct rte_vmbus_device *dev) 1064 { 1065 struct rte_eth_dev *eth_dev; 1066 int ret; 1067 1068 PMD_INIT_FUNC_TRACE(); 1069 1070 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 1071 if (!eth_dev) 1072 return -ENOMEM; 1073 1074 ret = eth_hn_dev_init(eth_dev); 1075 if (ret) 1076 eth_dev_vmbus_release(eth_dev); 1077 else 1078 rte_eth_dev_probing_finish(eth_dev); 1079 1080 return ret; 1081 } 1082 1083 static int eth_hn_remove(struct rte_vmbus_device *dev) 1084 { 1085 struct rte_eth_dev *eth_dev; 1086 int ret; 1087 1088 PMD_INIT_FUNC_TRACE(); 1089 1090 eth_dev = rte_eth_dev_allocated(dev->device.name); 1091 if (!eth_dev) 1092 return -ENODEV; 1093 1094 ret = eth_hn_dev_uninit(eth_dev); 1095 if (ret) 1096 return ret; 1097 1098 eth_dev_vmbus_release(eth_dev); 1099 return 0; 1100 } 1101 1102 /* Network device GUID */ 1103 static const rte_uuid_t hn_net_ids[] = { 1104 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 1105 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 1106 { 0 } 1107 }; 1108 1109 static struct rte_vmbus_driver rte_netvsc_pmd = { 1110 .id_table = hn_net_ids, 1111 .probe = eth_hn_probe, 1112 .remove = eth_hn_remove, 1113 }; 1114 1115 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 1116 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 1117 1118 RTE_INIT(hn_init_log) 1119 { 1120 hn_logtype_init = rte_log_register("pmd.net.netvsc.init"); 1121 if (hn_logtype_init >= 0) 1122 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE); 1123 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver"); 1124 if (hn_logtype_driver >= 0) 1125 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE); 1126 } 1127