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 47 int hn_logtype_init; 48 int hn_logtype_driver; 49 50 struct hn_xstats_name_off { 51 char name[RTE_ETH_XSTATS_NAME_SIZE]; 52 unsigned int offset; 53 }; 54 55 static const struct hn_xstats_name_off hn_stat_strings[] = { 56 { "good_packets", offsetof(struct hn_stats, packets) }, 57 { "good_bytes", offsetof(struct hn_stats, bytes) }, 58 { "errors", offsetof(struct hn_stats, errors) }, 59 { "ring full", offsetof(struct hn_stats, ring_full) }, 60 { "multicast_packets", offsetof(struct hn_stats, multicast) }, 61 { "broadcast_packets", offsetof(struct hn_stats, broadcast) }, 62 { "undersize_packets", offsetof(struct hn_stats, size_bins[0]) }, 63 { "size_64_packets", offsetof(struct hn_stats, size_bins[1]) }, 64 { "size_65_127_packets", offsetof(struct hn_stats, size_bins[2]) }, 65 { "size_128_255_packets", offsetof(struct hn_stats, size_bins[3]) }, 66 { "size_256_511_packets", offsetof(struct hn_stats, size_bins[4]) }, 67 { "size_512_1023_packets", offsetof(struct hn_stats, size_bins[5]) }, 68 { "size_1024_1518_packets", offsetof(struct hn_stats, size_bins[6]) }, 69 { "size_1519_max_packets", offsetof(struct hn_stats, size_bins[7]) }, 70 }; 71 72 static struct rte_eth_dev * 73 eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size) 74 { 75 struct rte_eth_dev *eth_dev; 76 const char *name; 77 78 if (!dev) 79 return NULL; 80 81 name = dev->device.name; 82 83 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 84 eth_dev = rte_eth_dev_allocate(name); 85 if (!eth_dev) { 86 PMD_DRV_LOG(NOTICE, "can not allocate rte ethdev"); 87 return NULL; 88 } 89 90 if (private_data_size) { 91 eth_dev->data->dev_private = 92 rte_zmalloc_socket(name, private_data_size, 93 RTE_CACHE_LINE_SIZE, dev->device.numa_node); 94 if (!eth_dev->data->dev_private) { 95 PMD_DRV_LOG(NOTICE, "can not allocate driver data"); 96 rte_eth_dev_release_port(eth_dev); 97 return NULL; 98 } 99 } 100 } else { 101 eth_dev = rte_eth_dev_attach_secondary(name); 102 if (!eth_dev) { 103 PMD_DRV_LOG(NOTICE, "can not attach secondary"); 104 return NULL; 105 } 106 } 107 108 eth_dev->device = &dev->device; 109 110 /* interrupt is simulated */ 111 dev->intr_handle.type = RTE_INTR_HANDLE_EXT; 112 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC; 113 eth_dev->intr_handle = &dev->intr_handle; 114 115 return eth_dev; 116 } 117 118 static void 119 eth_dev_vmbus_release(struct rte_eth_dev *eth_dev) 120 { 121 /* free ether device */ 122 rte_eth_dev_release_port(eth_dev); 123 124 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 125 rte_free(eth_dev->data->dev_private); 126 127 eth_dev->data->dev_private = NULL; 128 129 /* 130 * Secondary process will check the name to attach. 131 * Clear this field to avoid attaching a released ports. 132 */ 133 eth_dev->data->name[0] = '\0'; 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; 170 171 if (!devargs) 172 return 0; 173 174 PMD_INIT_LOG(DEBUG, "device args %s %s", 175 devargs->name, devargs->args); 176 177 kvlist = rte_kvargs_parse(devargs->args, valid_keys); 178 if (!kvlist) { 179 PMD_DRV_LOG(NOTICE, "invalid parameters"); 180 return -EINVAL; 181 } 182 183 rte_kvargs_process(kvlist, "latency", hn_set_latency, hv); 184 rte_kvargs_free(kvlist); 185 return 0; 186 } 187 188 /* Update link status. 189 * Note: the DPDK definition of "wait_to_complete" 190 * means block this call until link is up. 191 * which is not worth supporting. 192 */ 193 int 194 hn_dev_link_update(struct rte_eth_dev *dev, 195 int wait_to_complete) 196 { 197 struct hn_data *hv = dev->data->dev_private; 198 struct rte_eth_link link, old; 199 int error; 200 201 old = dev->data->dev_link; 202 203 error = hn_rndis_get_linkstatus(hv); 204 if (error) 205 return error; 206 207 hn_rndis_get_linkspeed(hv); 208 209 hn_vf_link_update(dev, wait_to_complete); 210 211 link = (struct rte_eth_link) { 212 .link_duplex = ETH_LINK_FULL_DUPLEX, 213 .link_autoneg = ETH_LINK_SPEED_FIXED, 214 .link_speed = hv->link_speed / 10000, 215 }; 216 217 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED) 218 link.link_status = ETH_LINK_UP; 219 else 220 link.link_status = ETH_LINK_DOWN; 221 222 if (old.link_status == link.link_status) 223 return 0; 224 225 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id, 226 (link.link_status == ETH_LINK_UP) ? "up" : "down"); 227 228 return rte_eth_linkstatus_set(dev, &link); 229 } 230 231 static void hn_dev_info_get(struct rte_eth_dev *dev, 232 struct rte_eth_dev_info *dev_info) 233 { 234 struct hn_data *hv = dev->data->dev_private; 235 236 dev_info->speed_capa = ETH_LINK_SPEED_10G; 237 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE; 238 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN; 239 dev_info->max_mac_addrs = 1; 240 241 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ; 242 dev_info->flow_type_rss_offloads = 243 ETH_RSS_IPV4 | ETH_RSS_IPV6 | ETH_RSS_TCP | ETH_RSS_UDP; 244 245 dev_info->max_rx_queues = hv->max_queues; 246 dev_info->max_tx_queues = hv->max_queues; 247 248 hn_rndis_get_offload(hv, dev_info); 249 hn_vf_info_get(hv, dev_info); 250 } 251 252 static void 253 hn_dev_promiscuous_enable(struct rte_eth_dev *dev) 254 { 255 struct hn_data *hv = dev->data->dev_private; 256 257 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); 258 } 259 260 static void 261 hn_dev_promiscuous_disable(struct rte_eth_dev *dev) 262 { 263 struct hn_data *hv = dev->data->dev_private; 264 uint32_t filter; 265 266 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; 267 if (dev->data->all_multicast) 268 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; 269 hn_rndis_set_rxfilter(hv, filter); 270 } 271 272 static void 273 hn_dev_allmulticast_enable(struct rte_eth_dev *dev) 274 { 275 struct hn_data *hv = dev->data->dev_private; 276 277 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 278 NDIS_PACKET_TYPE_ALL_MULTICAST | 279 NDIS_PACKET_TYPE_BROADCAST); 280 } 281 282 static void 283 hn_dev_allmulticast_disable(struct rte_eth_dev *dev) 284 { 285 struct hn_data *hv = dev->data->dev_private; 286 287 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 288 NDIS_PACKET_TYPE_BROADCAST); 289 } 290 291 /* Setup shared rx/tx queue data */ 292 static int hn_subchan_configure(struct hn_data *hv, 293 uint32_t subchan) 294 { 295 struct vmbus_channel *primary = hn_primary_chan(hv); 296 int err; 297 unsigned int retry = 0; 298 299 PMD_DRV_LOG(DEBUG, 300 "open %u subchannels", subchan); 301 302 /* Send create sub channels command */ 303 err = hn_nvs_alloc_subchans(hv, &subchan); 304 if (err) 305 return err; 306 307 while (subchan > 0) { 308 struct vmbus_channel *new_sc; 309 uint16_t chn_index; 310 311 err = rte_vmbus_subchan_open(primary, &new_sc); 312 if (err == -ENOENT && ++retry < 1000) { 313 /* This can happen if not ready yet */ 314 rte_delay_ms(10); 315 continue; 316 } 317 318 if (err) { 319 PMD_DRV_LOG(ERR, 320 "open subchannel failed: %d", err); 321 return err; 322 } 323 324 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); 325 326 retry = 0; 327 chn_index = rte_vmbus_sub_channel_index(new_sc); 328 if (chn_index == 0 || chn_index > hv->max_queues) { 329 PMD_DRV_LOG(ERR, 330 "Invalid subchannel offermsg channel %u", 331 chn_index); 332 return -EIO; 333 } 334 335 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); 336 hv->channels[chn_index] = new_sc; 337 --subchan; 338 } 339 340 return err; 341 } 342 343 static int hn_dev_configure(struct rte_eth_dev *dev) 344 { 345 const struct rte_eth_conf *dev_conf = &dev->data->dev_conf; 346 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; 347 const struct rte_eth_txmode *txmode = &dev_conf->txmode; 348 349 const struct rte_eth_rss_conf *rss_conf = 350 &dev_conf->rx_adv_conf.rss_conf; 351 struct hn_data *hv = dev->data->dev_private; 352 uint64_t unsupported; 353 int err, subchan; 354 355 PMD_INIT_FUNC_TRACE(); 356 357 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; 358 if (unsupported) { 359 PMD_DRV_LOG(NOTICE, 360 "unsupported TX offload: %#" PRIx64, 361 unsupported); 362 return -EINVAL; 363 } 364 365 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; 366 if (unsupported) { 367 PMD_DRV_LOG(NOTICE, 368 "unsupported RX offload: %#" PRIx64, 369 rxmode->offloads); 370 return -EINVAL; 371 } 372 373 err = hn_rndis_conf_offload(hv, txmode->offloads, 374 rxmode->offloads); 375 if (err) { 376 PMD_DRV_LOG(NOTICE, 377 "offload configure failed"); 378 return err; 379 } 380 381 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, 382 dev->data->nb_tx_queues); 383 subchan = hv->num_queues - 1; 384 if (subchan > 0) { 385 err = hn_subchan_configure(hv, subchan); 386 if (err) { 387 PMD_DRV_LOG(NOTICE, 388 "subchannel configuration failed"); 389 return err; 390 } 391 392 err = hn_rndis_conf_rss(hv, rss_conf); 393 if (err) { 394 PMD_DRV_LOG(NOTICE, 395 "rss configuration failed"); 396 return err; 397 } 398 } 399 400 return hn_vf_configure(dev, dev_conf); 401 } 402 403 static int hn_dev_stats_get(struct rte_eth_dev *dev, 404 struct rte_eth_stats *stats) 405 { 406 unsigned int i; 407 408 hn_vf_stats_get(dev, stats); 409 410 for (i = 0; i < dev->data->nb_tx_queues; i++) { 411 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 412 413 if (!txq) 414 continue; 415 416 stats->opackets += txq->stats.packets; 417 stats->obytes += txq->stats.bytes; 418 stats->oerrors += txq->stats.errors; 419 420 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 421 stats->q_opackets[i] = txq->stats.packets; 422 stats->q_obytes[i] = txq->stats.bytes; 423 } 424 } 425 426 for (i = 0; i < dev->data->nb_rx_queues; i++) { 427 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 428 429 if (!rxq) 430 continue; 431 432 stats->ipackets += rxq->stats.packets; 433 stats->ibytes += rxq->stats.bytes; 434 stats->ierrors += rxq->stats.errors; 435 stats->imissed += rxq->stats.ring_full; 436 437 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 438 stats->q_ipackets[i] = rxq->stats.packets; 439 stats->q_ibytes[i] = rxq->stats.bytes; 440 } 441 } 442 443 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; 444 return 0; 445 } 446 447 static void 448 hn_dev_stats_reset(struct rte_eth_dev *dev) 449 { 450 unsigned int i; 451 452 PMD_INIT_FUNC_TRACE(); 453 454 for (i = 0; i < dev->data->nb_tx_queues; i++) { 455 struct hn_tx_queue *txq = dev->data->tx_queues[i]; 456 457 if (!txq) 458 continue; 459 memset(&txq->stats, 0, sizeof(struct hn_stats)); 460 } 461 462 for (i = 0; i < dev->data->nb_rx_queues; i++) { 463 struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 464 465 if (!rxq) 466 continue; 467 468 memset(&rxq->stats, 0, sizeof(struct hn_stats)); 469 } 470 } 471 472 static void 473 hn_dev_xstats_reset(struct rte_eth_dev *dev) 474 { 475 hn_dev_stats_reset(dev); 476 hn_vf_xstats_reset(dev); 477 } 478 479 static int 480 hn_dev_xstats_count(struct rte_eth_dev *dev) 481 { 482 int ret, count; 483 484 count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings); 485 count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 486 487 ret = hn_vf_xstats_get_names(dev, NULL, 0); 488 if (ret < 0) 489 return ret; 490 491 return count + ret; 492 } 493 494 static int 495 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 496 struct rte_eth_xstat_name *xstats_names, 497 unsigned int limit) 498 { 499 unsigned int i, t, count = 0; 500 int ret; 501 502 if (!xstats_names) 503 return hn_dev_xstats_count(dev); 504 505 /* Note: limit checked in rte_eth_xstats_names() */ 506 for (i = 0; i < dev->data->nb_tx_queues; i++) { 507 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 508 509 if (!txq) 510 continue; 511 512 if (count >= limit) 513 break; 514 515 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 516 snprintf(xstats_names[count++].name, 517 RTE_ETH_XSTATS_NAME_SIZE, 518 "tx_q%u_%s", i, hn_stat_strings[t].name); 519 } 520 521 for (i = 0; i < dev->data->nb_rx_queues; i++) { 522 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 523 524 if (!rxq) 525 continue; 526 527 if (count >= limit) 528 break; 529 530 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 531 snprintf(xstats_names[count++].name, 532 RTE_ETH_XSTATS_NAME_SIZE, 533 "rx_q%u_%s", i, 534 hn_stat_strings[t].name); 535 } 536 537 ret = hn_vf_xstats_get_names(dev, xstats_names + count, 538 limit - count); 539 if (ret < 0) 540 return ret; 541 542 return count + ret; 543 } 544 545 static int 546 hn_dev_xstats_get(struct rte_eth_dev *dev, 547 struct rte_eth_xstat *xstats, 548 unsigned int n) 549 { 550 unsigned int i, t, count = 0; 551 const unsigned int nstats = hn_dev_xstats_count(dev); 552 const char *stats; 553 int ret; 554 555 PMD_INIT_FUNC_TRACE(); 556 557 if (n < nstats) 558 return nstats; 559 560 for (i = 0; i < dev->data->nb_tx_queues; i++) { 561 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 562 563 if (!txq) 564 continue; 565 566 stats = (const char *)&txq->stats; 567 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 568 xstats[count++].value = *(const uint64_t *) 569 (stats + hn_stat_strings[t].offset); 570 } 571 572 for (i = 0; i < dev->data->nb_rx_queues; i++) { 573 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 574 575 if (!rxq) 576 continue; 577 578 stats = (const char *)&rxq->stats; 579 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 580 xstats[count++].value = *(const uint64_t *) 581 (stats + hn_stat_strings[t].offset); 582 } 583 584 ret = hn_vf_xstats_get(dev, xstats + count, n - count); 585 if (ret < 0) 586 return ret; 587 588 return count + ret; 589 } 590 591 static int 592 hn_dev_start(struct rte_eth_dev *dev) 593 { 594 struct hn_data *hv = dev->data->dev_private; 595 int error; 596 597 PMD_INIT_FUNC_TRACE(); 598 599 error = hn_rndis_set_rxfilter(hv, 600 NDIS_PACKET_TYPE_BROADCAST | 601 NDIS_PACKET_TYPE_ALL_MULTICAST | 602 NDIS_PACKET_TYPE_DIRECTED); 603 if (error) 604 return error; 605 606 error = hn_vf_start(dev); 607 if (error) 608 hn_rndis_set_rxfilter(hv, 0); 609 610 return error; 611 } 612 613 static void 614 hn_dev_stop(struct rte_eth_dev *dev) 615 { 616 struct hn_data *hv = dev->data->dev_private; 617 618 PMD_INIT_FUNC_TRACE(); 619 620 hn_rndis_set_rxfilter(hv, 0); 621 hn_vf_stop(dev); 622 } 623 624 static void 625 hn_dev_close(struct rte_eth_dev *dev __rte_unused) 626 { 627 PMD_INIT_LOG(DEBUG, "close"); 628 629 hn_vf_close(dev); 630 } 631 632 static const struct eth_dev_ops hn_eth_dev_ops = { 633 .dev_configure = hn_dev_configure, 634 .dev_start = hn_dev_start, 635 .dev_stop = hn_dev_stop, 636 .dev_close = hn_dev_close, 637 .dev_infos_get = hn_dev_info_get, 638 .dev_supported_ptypes_get = hn_vf_supported_ptypes, 639 .promiscuous_enable = hn_dev_promiscuous_enable, 640 .promiscuous_disable = hn_dev_promiscuous_disable, 641 .allmulticast_enable = hn_dev_allmulticast_enable, 642 .allmulticast_disable = hn_dev_allmulticast_disable, 643 .tx_queue_setup = hn_dev_tx_queue_setup, 644 .tx_queue_release = hn_dev_tx_queue_release, 645 .tx_done_cleanup = hn_dev_tx_done_cleanup, 646 .rx_queue_setup = hn_dev_rx_queue_setup, 647 .rx_queue_release = hn_dev_rx_queue_release, 648 .link_update = hn_dev_link_update, 649 .stats_get = hn_dev_stats_get, 650 .stats_reset = hn_dev_stats_reset, 651 .xstats_get = hn_dev_xstats_get, 652 .xstats_get_names = hn_dev_xstats_get_names, 653 .xstats_reset = hn_dev_xstats_reset, 654 }; 655 656 /* 657 * Setup connection between PMD and kernel. 658 */ 659 static int 660 hn_attach(struct hn_data *hv, unsigned int mtu) 661 { 662 int error; 663 664 /* Attach NVS */ 665 error = hn_nvs_attach(hv, mtu); 666 if (error) 667 goto failed_nvs; 668 669 /* Attach RNDIS */ 670 error = hn_rndis_attach(hv); 671 if (error) 672 goto failed_rndis; 673 674 /* 675 * NOTE: 676 * Under certain conditions on certain versions of Hyper-V, 677 * the RNDIS rxfilter is _not_ zero on the hypervisor side 678 * after the successful RNDIS initialization. 679 */ 680 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 681 return 0; 682 failed_rndis: 683 hn_nvs_detach(hv); 684 failed_nvs: 685 return error; 686 } 687 688 static void 689 hn_detach(struct hn_data *hv) 690 { 691 hn_nvs_detach(hv); 692 hn_rndis_detach(hv); 693 } 694 695 static int 696 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 697 { 698 struct hn_data *hv = eth_dev->data->dev_private; 699 struct rte_device *device = eth_dev->device; 700 struct rte_vmbus_device *vmbus; 701 unsigned int rxr_cnt; 702 int err, max_chan; 703 704 PMD_INIT_FUNC_TRACE(); 705 706 vmbus = container_of(device, struct rte_vmbus_device, device); 707 eth_dev->dev_ops = &hn_eth_dev_ops; 708 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 709 eth_dev->rx_pkt_burst = &hn_recv_pkts; 710 711 /* 712 * for secondary processes, we don't initialize any further as primary 713 * has already done this work. 714 */ 715 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 716 return 0; 717 718 /* Since Hyper-V only supports one MAC address, just use local data */ 719 eth_dev->data->mac_addrs = &hv->mac_addr; 720 721 hv->vmbus = vmbus; 722 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; 723 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; 724 hv->port_id = eth_dev->data->port_id; 725 hv->latency = HN_CHAN_LATENCY_NS; 726 727 err = hn_parse_args(eth_dev); 728 if (err) 729 return err; 730 731 strlcpy(hv->owner.name, eth_dev->device->name, 732 RTE_ETH_MAX_OWNER_NAME_LEN); 733 err = rte_eth_dev_owner_new(&hv->owner.id); 734 if (err) { 735 PMD_INIT_LOG(ERR, "Can not get owner id"); 736 return err; 737 } 738 739 /* Initialize primary channel input for control operations */ 740 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 741 if (err) 742 return err; 743 744 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 745 746 hv->primary = hn_rx_queue_alloc(hv, 0, 747 eth_dev->device->numa_node); 748 749 if (!hv->primary) 750 return -ENOMEM; 751 752 err = hn_attach(hv, ETHER_MTU); 753 if (err) 754 goto failed; 755 756 err = hn_tx_pool_init(eth_dev); 757 if (err) 758 goto failed; 759 760 err = hn_rndis_get_eaddr(hv, hv->mac_addr.addr_bytes); 761 if (err) 762 goto failed; 763 764 max_chan = rte_vmbus_max_channels(vmbus); 765 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 766 if (max_chan <= 0) 767 goto failed; 768 769 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 770 rxr_cnt = 1; 771 772 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 773 774 /* If VF was reported but not added, do it now */ 775 if (hv->vf_present && !hv->vf_dev) { 776 PMD_INIT_LOG(DEBUG, "Adding VF device"); 777 778 err = hn_vf_add(eth_dev, hv); 779 if (err) 780 goto failed; 781 } 782 783 return 0; 784 785 failed: 786 PMD_INIT_LOG(NOTICE, "device init failed"); 787 788 hn_detach(hv); 789 return err; 790 } 791 792 static int 793 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 794 { 795 struct hn_data *hv = eth_dev->data->dev_private; 796 797 PMD_INIT_FUNC_TRACE(); 798 799 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 800 return 0; 801 802 hn_dev_stop(eth_dev); 803 hn_dev_close(eth_dev); 804 805 eth_dev->dev_ops = NULL; 806 eth_dev->tx_pkt_burst = NULL; 807 eth_dev->rx_pkt_burst = NULL; 808 809 hn_detach(hv); 810 rte_vmbus_chan_close(hv->primary->chan); 811 rte_free(hv->primary); 812 rte_eth_dev_owner_delete(hv->owner.id); 813 814 eth_dev->data->mac_addrs = NULL; 815 816 return 0; 817 } 818 819 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 820 struct rte_vmbus_device *dev) 821 { 822 struct rte_eth_dev *eth_dev; 823 int ret; 824 825 PMD_INIT_FUNC_TRACE(); 826 827 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 828 if (!eth_dev) 829 return -ENOMEM; 830 831 ret = eth_hn_dev_init(eth_dev); 832 if (ret) 833 eth_dev_vmbus_release(eth_dev); 834 else 835 rte_eth_dev_probing_finish(eth_dev); 836 837 return ret; 838 } 839 840 static int eth_hn_remove(struct rte_vmbus_device *dev) 841 { 842 struct rte_eth_dev *eth_dev; 843 int ret; 844 845 PMD_INIT_FUNC_TRACE(); 846 847 eth_dev = rte_eth_dev_allocated(dev->device.name); 848 if (!eth_dev) 849 return -ENODEV; 850 851 ret = eth_hn_dev_uninit(eth_dev); 852 if (ret) 853 return ret; 854 855 eth_dev_vmbus_release(eth_dev); 856 return 0; 857 } 858 859 /* Network device GUID */ 860 static const rte_uuid_t hn_net_ids[] = { 861 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 862 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 863 { 0 } 864 }; 865 866 static struct rte_vmbus_driver rte_netvsc_pmd = { 867 .id_table = hn_net_ids, 868 .probe = eth_hn_probe, 869 .remove = eth_hn_remove, 870 }; 871 872 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 873 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 874 875 RTE_INIT(hn_init_log); 876 static void 877 hn_init_log(void) 878 { 879 hn_logtype_init = rte_log_register("pmd.net.netvsc.init"); 880 if (hn_logtype_init >= 0) 881 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE); 882 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver"); 883 if (hn_logtype_driver >= 0) 884 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE); 885 } 886