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 { "allocation_failed", offsetof(struct hn_stats, nomemory) }, 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 eth_dev->intr_handle = &dev->intr_handle; 110 111 return eth_dev; 112 } 113 114 static void 115 eth_dev_vmbus_release(struct rte_eth_dev *eth_dev) 116 { 117 /* free ether device */ 118 rte_eth_dev_release_port(eth_dev); 119 120 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 121 rte_free(eth_dev->data->dev_private); 122 123 eth_dev->data->dev_private = NULL; 124 125 /* 126 * Secondary process will check the name to attach. 127 * Clear this field to avoid attaching a released ports. 128 */ 129 eth_dev->data->name[0] = '\0'; 130 131 eth_dev->device = NULL; 132 eth_dev->intr_handle = NULL; 133 } 134 135 /* handle "latency=X" from devargs */ 136 static int hn_set_latency(const char *key, const char *value, void *opaque) 137 { 138 struct hn_data *hv = opaque; 139 char *endp = NULL; 140 unsigned long lat; 141 142 errno = 0; 143 lat = strtoul(value, &endp, 0); 144 145 if (*value == '\0' || *endp != '\0') { 146 PMD_DRV_LOG(ERR, "invalid parameter %s=%s", key, value); 147 return -EINVAL; 148 } 149 150 PMD_DRV_LOG(DEBUG, "set latency %lu usec", lat); 151 152 hv->latency = lat * 1000; /* usec to nsec */ 153 return 0; 154 } 155 156 /* Parse device arguments */ 157 static int hn_parse_args(const struct rte_eth_dev *dev) 158 { 159 struct hn_data *hv = dev->data->dev_private; 160 struct rte_devargs *devargs = dev->device->devargs; 161 static const char * const valid_keys[] = { 162 "latency", 163 NULL 164 }; 165 struct rte_kvargs *kvlist; 166 167 if (!devargs) 168 return 0; 169 170 PMD_INIT_LOG(DEBUG, "device args %s %s", 171 devargs->name, devargs->args); 172 173 kvlist = rte_kvargs_parse(devargs->args, valid_keys); 174 if (!kvlist) { 175 PMD_DRV_LOG(NOTICE, "invalid parameters"); 176 return -EINVAL; 177 } 178 179 rte_kvargs_process(kvlist, "latency", hn_set_latency, hv); 180 rte_kvargs_free(kvlist); 181 return 0; 182 } 183 184 /* Update link status. 185 * Note: the DPDK definition of "wait_to_complete" 186 * means block this call until link is up. 187 * which is not worth supporting. 188 */ 189 static int 190 hn_dev_link_update(struct rte_eth_dev *dev, 191 __rte_unused int wait_to_complete) 192 { 193 struct hn_data *hv = dev->data->dev_private; 194 struct rte_eth_link link, old; 195 int error; 196 197 old = dev->data->dev_link; 198 199 error = hn_rndis_get_linkstatus(hv); 200 if (error) 201 return error; 202 203 hn_rndis_get_linkspeed(hv); 204 205 link = (struct rte_eth_link) { 206 .link_duplex = ETH_LINK_FULL_DUPLEX, 207 .link_autoneg = ETH_LINK_SPEED_FIXED, 208 .link_speed = hv->link_speed / 10000, 209 }; 210 211 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED) 212 link.link_status = ETH_LINK_UP; 213 else 214 link.link_status = ETH_LINK_DOWN; 215 216 if (old.link_status == link.link_status) 217 return 0; 218 219 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id, 220 (link.link_status == ETH_LINK_UP) ? "up" : "down"); 221 222 return rte_eth_linkstatus_set(dev, &link); 223 } 224 225 static void hn_dev_info_get(struct rte_eth_dev *dev, 226 struct rte_eth_dev_info *dev_info) 227 { 228 struct hn_data *hv = dev->data->dev_private; 229 230 dev_info->speed_capa = ETH_LINK_SPEED_10G; 231 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE; 232 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN; 233 dev_info->max_mac_addrs = 1; 234 235 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ; 236 dev_info->flow_type_rss_offloads = 237 ETH_RSS_IPV4 | ETH_RSS_IPV6 | ETH_RSS_TCP | ETH_RSS_UDP; 238 239 dev_info->max_rx_queues = hv->max_queues; 240 dev_info->max_tx_queues = hv->max_queues; 241 242 hn_rndis_get_offload(hv, dev_info); 243 } 244 245 static void 246 hn_dev_promiscuous_enable(struct rte_eth_dev *dev) 247 { 248 struct hn_data *hv = dev->data->dev_private; 249 250 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); 251 } 252 253 static void 254 hn_dev_promiscuous_disable(struct rte_eth_dev *dev) 255 { 256 struct hn_data *hv = dev->data->dev_private; 257 uint32_t filter; 258 259 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; 260 if (dev->data->all_multicast) 261 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; 262 hn_rndis_set_rxfilter(hv, filter); 263 } 264 265 static void 266 hn_dev_allmulticast_enable(struct rte_eth_dev *dev) 267 { 268 struct hn_data *hv = dev->data->dev_private; 269 270 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 271 NDIS_PACKET_TYPE_ALL_MULTICAST | 272 NDIS_PACKET_TYPE_BROADCAST); 273 } 274 275 static void 276 hn_dev_allmulticast_disable(struct rte_eth_dev *dev) 277 { 278 struct hn_data *hv = dev->data->dev_private; 279 280 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | 281 NDIS_PACKET_TYPE_BROADCAST); 282 } 283 284 /* Setup shared rx/tx queue data */ 285 static int hn_subchan_configure(struct hn_data *hv, 286 uint32_t subchan) 287 { 288 struct vmbus_channel *primary = hn_primary_chan(hv); 289 int err; 290 unsigned int retry = 0; 291 292 PMD_DRV_LOG(DEBUG, 293 "open %u subchannels", subchan); 294 295 /* Send create sub channels command */ 296 err = hn_nvs_alloc_subchans(hv, &subchan); 297 if (err) 298 return err; 299 300 while (subchan > 0) { 301 struct vmbus_channel *new_sc; 302 uint16_t chn_index; 303 304 err = rte_vmbus_subchan_open(primary, &new_sc); 305 if (err == -ENOENT && ++retry < 1000) { 306 /* This can happen if not ready yet */ 307 rte_delay_ms(10); 308 continue; 309 } 310 311 if (err) { 312 PMD_DRV_LOG(ERR, 313 "open subchannel failed: %d", err); 314 return err; 315 } 316 317 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); 318 319 retry = 0; 320 chn_index = rte_vmbus_sub_channel_index(new_sc); 321 if (chn_index == 0 || chn_index > hv->max_queues) { 322 PMD_DRV_LOG(ERR, 323 "Invalid subchannel offermsg channel %u", 324 chn_index); 325 return -EIO; 326 } 327 328 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); 329 hv->channels[chn_index] = new_sc; 330 --subchan; 331 } 332 333 return err; 334 } 335 336 static int hn_dev_configure(struct rte_eth_dev *dev) 337 { 338 const struct rte_eth_conf *dev_conf = &dev->data->dev_conf; 339 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; 340 const struct rte_eth_txmode *txmode = &dev_conf->txmode; 341 342 const struct rte_eth_rss_conf *rss_conf = 343 &dev_conf->rx_adv_conf.rss_conf; 344 struct hn_data *hv = dev->data->dev_private; 345 uint64_t unsupported; 346 int err, subchan; 347 348 PMD_INIT_FUNC_TRACE(); 349 350 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; 351 if (unsupported) { 352 PMD_DRV_LOG(NOTICE, 353 "unsupported TX offload: %#" PRIx64, 354 unsupported); 355 return -EINVAL; 356 } 357 358 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; 359 if (unsupported) { 360 PMD_DRV_LOG(NOTICE, 361 "unsupported RX offload: %#" PRIx64, 362 rxmode->offloads); 363 return -EINVAL; 364 } 365 366 err = hn_rndis_conf_offload(hv, txmode->offloads, 367 rxmode->offloads); 368 if (err) { 369 PMD_DRV_LOG(NOTICE, 370 "offload configure failed"); 371 return err; 372 } 373 374 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, 375 dev->data->nb_tx_queues); 376 subchan = hv->num_queues - 1; 377 if (subchan > 0) { 378 err = hn_subchan_configure(hv, subchan); 379 if (err) { 380 PMD_DRV_LOG(NOTICE, 381 "subchannel configuration failed"); 382 return err; 383 } 384 385 err = hn_rndis_conf_rss(hv, rss_conf); 386 if (err) { 387 PMD_DRV_LOG(NOTICE, 388 "rss configuration failed"); 389 return err; 390 } 391 } 392 393 return 0; 394 } 395 396 static int hn_dev_stats_get(struct rte_eth_dev *dev, 397 struct rte_eth_stats *stats) 398 { 399 unsigned int i; 400 401 for (i = 0; i < dev->data->nb_tx_queues; i++) { 402 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 403 404 if (!txq) 405 continue; 406 407 stats->opackets += txq->stats.packets; 408 stats->obytes += txq->stats.bytes; 409 stats->oerrors += txq->stats.errors + txq->stats.nomemory; 410 411 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 412 stats->q_opackets[i] = txq->stats.packets; 413 stats->q_obytes[i] = txq->stats.bytes; 414 } 415 } 416 417 for (i = 0; i < dev->data->nb_rx_queues; i++) { 418 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 419 420 if (!rxq) 421 continue; 422 423 stats->ipackets += rxq->stats.packets; 424 stats->ibytes += rxq->stats.bytes; 425 stats->ierrors += rxq->stats.errors; 426 stats->imissed += rxq->ring_full; 427 428 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { 429 stats->q_ipackets[i] = rxq->stats.packets; 430 stats->q_ibytes[i] = rxq->stats.bytes; 431 } 432 } 433 434 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; 435 return 0; 436 } 437 438 static void 439 hn_dev_stats_reset(struct rte_eth_dev *dev) 440 { 441 unsigned int i; 442 443 PMD_INIT_FUNC_TRACE(); 444 445 for (i = 0; i < dev->data->nb_tx_queues; i++) { 446 struct hn_tx_queue *txq = dev->data->tx_queues[i]; 447 448 if (!txq) 449 continue; 450 memset(&txq->stats, 0, sizeof(struct hn_stats)); 451 } 452 453 for (i = 0; i < dev->data->nb_rx_queues; i++) { 454 struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 455 456 if (!rxq) 457 continue; 458 459 memset(&rxq->stats, 0, sizeof(struct hn_stats)); 460 rxq->ring_full = 0; 461 } 462 } 463 464 static int 465 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 466 struct rte_eth_xstat_name *xstats_names, 467 __rte_unused unsigned int limit) 468 { 469 unsigned int i, t, count = 0; 470 471 PMD_INIT_FUNC_TRACE(); 472 473 if (!xstats_names) 474 return dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings) 475 + dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 476 477 /* Note: limit checked in rte_eth_xstats_names() */ 478 for (i = 0; i < dev->data->nb_tx_queues; i++) { 479 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 480 481 if (!txq) 482 continue; 483 484 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 485 snprintf(xstats_names[count++].name, 486 RTE_ETH_XSTATS_NAME_SIZE, 487 "tx_q%u_%s", i, hn_stat_strings[t].name); 488 } 489 490 for (i = 0; i < dev->data->nb_rx_queues; i++) { 491 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 492 493 if (!rxq) 494 continue; 495 496 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 497 snprintf(xstats_names[count++].name, 498 RTE_ETH_XSTATS_NAME_SIZE, 499 "rx_q%u_%s", i, 500 hn_stat_strings[t].name); 501 } 502 503 return count; 504 } 505 506 static int 507 hn_dev_xstats_get(struct rte_eth_dev *dev, 508 struct rte_eth_xstat *xstats, 509 unsigned int n) 510 { 511 unsigned int i, t, count = 0; 512 513 const unsigned int nstats = 514 dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings) 515 + dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 516 const char *stats; 517 518 PMD_INIT_FUNC_TRACE(); 519 520 if (n < nstats) 521 return nstats; 522 523 for (i = 0; i < dev->data->nb_tx_queues; i++) { 524 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 525 526 if (!txq) 527 continue; 528 529 stats = (const char *)&txq->stats; 530 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 531 xstats[count++].value = *(const uint64_t *) 532 (stats + hn_stat_strings[t].offset); 533 } 534 535 for (i = 0; i < dev->data->nb_rx_queues; i++) { 536 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 537 538 if (!rxq) 539 continue; 540 541 stats = (const char *)&rxq->stats; 542 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 543 xstats[count++].value = *(const uint64_t *) 544 (stats + hn_stat_strings[t].offset); 545 } 546 547 return count; 548 } 549 550 static int 551 hn_dev_start(struct rte_eth_dev *dev) 552 { 553 struct hn_data *hv = dev->data->dev_private; 554 555 PMD_INIT_FUNC_TRACE(); 556 557 /* check if lsc interrupt feature is enabled */ 558 if (dev->data->dev_conf.intr_conf.lsc) { 559 PMD_DRV_LOG(ERR, "link status not supported yet"); 560 return -ENOTSUP; 561 } 562 563 return hn_rndis_set_rxfilter(hv, 564 NDIS_PACKET_TYPE_BROADCAST | 565 NDIS_PACKET_TYPE_ALL_MULTICAST | 566 NDIS_PACKET_TYPE_DIRECTED); 567 } 568 569 static void 570 hn_dev_stop(struct rte_eth_dev *dev) 571 { 572 struct hn_data *hv = dev->data->dev_private; 573 574 PMD_INIT_FUNC_TRACE(); 575 576 hn_rndis_set_rxfilter(hv, 0); 577 } 578 579 static void 580 hn_dev_close(struct rte_eth_dev *dev __rte_unused) 581 { 582 PMD_INIT_LOG(DEBUG, "close"); 583 } 584 585 static const struct eth_dev_ops hn_eth_dev_ops = { 586 .dev_configure = hn_dev_configure, 587 .dev_start = hn_dev_start, 588 .dev_stop = hn_dev_stop, 589 .dev_close = hn_dev_close, 590 .dev_infos_get = hn_dev_info_get, 591 .txq_info_get = hn_dev_tx_queue_info, 592 .rxq_info_get = hn_dev_rx_queue_info, 593 .promiscuous_enable = hn_dev_promiscuous_enable, 594 .promiscuous_disable = hn_dev_promiscuous_disable, 595 .allmulticast_enable = hn_dev_allmulticast_enable, 596 .allmulticast_disable = hn_dev_allmulticast_disable, 597 .tx_queue_setup = hn_dev_tx_queue_setup, 598 .tx_queue_release = hn_dev_tx_queue_release, 599 .tx_done_cleanup = hn_dev_tx_done_cleanup, 600 .rx_queue_setup = hn_dev_rx_queue_setup, 601 .rx_queue_release = hn_dev_rx_queue_release, 602 .link_update = hn_dev_link_update, 603 .stats_get = hn_dev_stats_get, 604 .xstats_get = hn_dev_xstats_get, 605 .xstats_get_names = hn_dev_xstats_get_names, 606 .stats_reset = hn_dev_stats_reset, 607 .xstats_reset = hn_dev_stats_reset, 608 }; 609 610 /* 611 * Setup connection between PMD and kernel. 612 */ 613 static int 614 hn_attach(struct hn_data *hv, unsigned int mtu) 615 { 616 int error; 617 618 /* Attach NVS */ 619 error = hn_nvs_attach(hv, mtu); 620 if (error) 621 goto failed_nvs; 622 623 /* Attach RNDIS */ 624 error = hn_rndis_attach(hv); 625 if (error) 626 goto failed_rndis; 627 628 /* 629 * NOTE: 630 * Under certain conditions on certain versions of Hyper-V, 631 * the RNDIS rxfilter is _not_ zero on the hypervisor side 632 * after the successful RNDIS initialization. 633 */ 634 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 635 return 0; 636 failed_rndis: 637 hn_nvs_detach(hv); 638 failed_nvs: 639 return error; 640 } 641 642 static void 643 hn_detach(struct hn_data *hv) 644 { 645 hn_nvs_detach(hv); 646 hn_rndis_detach(hv); 647 } 648 649 static int 650 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 651 { 652 struct hn_data *hv = eth_dev->data->dev_private; 653 struct rte_device *device = eth_dev->device; 654 struct rte_vmbus_device *vmbus; 655 unsigned int rxr_cnt; 656 int err, max_chan; 657 658 PMD_INIT_FUNC_TRACE(); 659 660 vmbus = container_of(device, struct rte_vmbus_device, device); 661 eth_dev->dev_ops = &hn_eth_dev_ops; 662 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 663 eth_dev->rx_pkt_burst = &hn_recv_pkts; 664 665 /* 666 * for secondary processes, we don't initialize any further as primary 667 * has already done this work. 668 */ 669 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 670 return 0; 671 672 /* Since Hyper-V only supports one MAC address, just use local data */ 673 eth_dev->data->mac_addrs = &hv->mac_addr; 674 675 hv->vmbus = vmbus; 676 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; 677 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; 678 hv->port_id = eth_dev->data->port_id; 679 hv->latency = HN_CHAN_LATENCY_NS; 680 681 err = hn_parse_args(eth_dev); 682 if (err) 683 return err; 684 685 /* Initialize primary channel input for control operations */ 686 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 687 if (err) 688 return err; 689 690 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 691 692 hv->primary = hn_rx_queue_alloc(hv, 0, 693 eth_dev->device->numa_node); 694 695 if (!hv->primary) 696 return -ENOMEM; 697 698 err = hn_attach(hv, ETHER_MTU); 699 if (err) 700 goto failed; 701 702 err = hn_tx_pool_init(eth_dev); 703 if (err) 704 goto failed; 705 706 err = hn_rndis_get_eaddr(hv, hv->mac_addr.addr_bytes); 707 if (err) 708 goto failed; 709 710 max_chan = rte_vmbus_max_channels(vmbus); 711 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 712 if (max_chan <= 0) 713 goto failed; 714 715 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 716 rxr_cnt = 1; 717 718 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 719 720 return 0; 721 722 failed: 723 PMD_INIT_LOG(NOTICE, "device init failed"); 724 725 hn_detach(hv); 726 return err; 727 } 728 729 static int 730 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 731 { 732 struct hn_data *hv = eth_dev->data->dev_private; 733 734 PMD_INIT_FUNC_TRACE(); 735 736 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 737 return 0; 738 739 hn_dev_stop(eth_dev); 740 hn_dev_close(eth_dev); 741 742 eth_dev->dev_ops = NULL; 743 eth_dev->tx_pkt_burst = NULL; 744 eth_dev->rx_pkt_burst = NULL; 745 746 hn_detach(hv); 747 rte_vmbus_chan_close(hv->primary->chan); 748 rte_free(hv->primary); 749 750 eth_dev->data->mac_addrs = NULL; 751 752 return 0; 753 } 754 755 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 756 struct rte_vmbus_device *dev) 757 { 758 struct rte_eth_dev *eth_dev; 759 int ret; 760 761 PMD_INIT_FUNC_TRACE(); 762 763 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 764 if (!eth_dev) 765 return -ENOMEM; 766 767 ret = eth_hn_dev_init(eth_dev); 768 if (ret) 769 eth_dev_vmbus_release(eth_dev); 770 else 771 rte_eth_dev_probing_finish(eth_dev); 772 773 return ret; 774 } 775 776 static int eth_hn_remove(struct rte_vmbus_device *dev) 777 { 778 struct rte_eth_dev *eth_dev; 779 int ret; 780 781 PMD_INIT_FUNC_TRACE(); 782 783 eth_dev = rte_eth_dev_allocated(dev->device.name); 784 if (!eth_dev) 785 return -ENODEV; 786 787 ret = eth_hn_dev_uninit(eth_dev); 788 if (ret) 789 return ret; 790 791 eth_dev_vmbus_release(eth_dev); 792 return 0; 793 } 794 795 /* Network device GUID */ 796 static const rte_uuid_t hn_net_ids[] = { 797 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 798 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 799 { 0 } 800 }; 801 802 static struct rte_vmbus_driver rte_netvsc_pmd = { 803 .id_table = hn_net_ids, 804 .probe = eth_hn_probe, 805 .remove = eth_hn_remove, 806 }; 807 808 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 809 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 810 811 RTE_INIT(hn_init_log); 812 static void 813 hn_init_log(void) 814 { 815 hn_logtype_init = rte_log_register("pmd.net.netvsc.init"); 816 if (hn_logtype_init >= 0) 817 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE); 818 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver"); 819 if (hn_logtype_driver >= 0) 820 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE); 821 } 822