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 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; 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->stats.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 } 461 } 462 463 static int 464 hn_dev_xstats_get_names(struct rte_eth_dev *dev, 465 struct rte_eth_xstat_name *xstats_names, 466 __rte_unused unsigned int limit) 467 { 468 unsigned int i, t, count = 0; 469 470 PMD_INIT_FUNC_TRACE(); 471 472 if (!xstats_names) 473 return dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings) 474 + dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 475 476 /* Note: limit checked in rte_eth_xstats_names() */ 477 for (i = 0; i < dev->data->nb_tx_queues; i++) { 478 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 479 480 if (!txq) 481 continue; 482 483 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 484 snprintf(xstats_names[count++].name, 485 RTE_ETH_XSTATS_NAME_SIZE, 486 "tx_q%u_%s", i, hn_stat_strings[t].name); 487 } 488 489 for (i = 0; i < dev->data->nb_rx_queues; i++) { 490 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 491 492 if (!rxq) 493 continue; 494 495 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 496 snprintf(xstats_names[count++].name, 497 RTE_ETH_XSTATS_NAME_SIZE, 498 "rx_q%u_%s", i, 499 hn_stat_strings[t].name); 500 } 501 502 return count; 503 } 504 505 static int 506 hn_dev_xstats_get(struct rte_eth_dev *dev, 507 struct rte_eth_xstat *xstats, 508 unsigned int n) 509 { 510 unsigned int i, t, count = 0; 511 512 const unsigned int nstats = 513 dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings) 514 + dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); 515 const char *stats; 516 517 PMD_INIT_FUNC_TRACE(); 518 519 if (n < nstats) 520 return nstats; 521 522 for (i = 0; i < dev->data->nb_tx_queues; i++) { 523 const struct hn_tx_queue *txq = dev->data->tx_queues[i]; 524 525 if (!txq) 526 continue; 527 528 stats = (const char *)&txq->stats; 529 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 530 xstats[count++].value = *(const uint64_t *) 531 (stats + hn_stat_strings[t].offset); 532 } 533 534 for (i = 0; i < dev->data->nb_rx_queues; i++) { 535 const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; 536 537 if (!rxq) 538 continue; 539 540 stats = (const char *)&rxq->stats; 541 for (t = 0; t < RTE_DIM(hn_stat_strings); t++) 542 xstats[count++].value = *(const uint64_t *) 543 (stats + hn_stat_strings[t].offset); 544 } 545 546 return count; 547 } 548 549 static int 550 hn_dev_start(struct rte_eth_dev *dev) 551 { 552 struct hn_data *hv = dev->data->dev_private; 553 554 PMD_INIT_FUNC_TRACE(); 555 556 /* check if lsc interrupt feature is enabled */ 557 if (dev->data->dev_conf.intr_conf.lsc) { 558 PMD_DRV_LOG(ERR, "link status not supported yet"); 559 return -ENOTSUP; 560 } 561 562 return hn_rndis_set_rxfilter(hv, 563 NDIS_PACKET_TYPE_BROADCAST | 564 NDIS_PACKET_TYPE_ALL_MULTICAST | 565 NDIS_PACKET_TYPE_DIRECTED); 566 } 567 568 static void 569 hn_dev_stop(struct rte_eth_dev *dev) 570 { 571 struct hn_data *hv = dev->data->dev_private; 572 573 PMD_INIT_FUNC_TRACE(); 574 575 hn_rndis_set_rxfilter(hv, 0); 576 } 577 578 static void 579 hn_dev_close(struct rte_eth_dev *dev __rte_unused) 580 { 581 PMD_INIT_LOG(DEBUG, "close"); 582 } 583 584 static const struct eth_dev_ops hn_eth_dev_ops = { 585 .dev_configure = hn_dev_configure, 586 .dev_start = hn_dev_start, 587 .dev_stop = hn_dev_stop, 588 .dev_close = hn_dev_close, 589 .dev_infos_get = hn_dev_info_get, 590 .txq_info_get = hn_dev_tx_queue_info, 591 .rxq_info_get = hn_dev_rx_queue_info, 592 .promiscuous_enable = hn_dev_promiscuous_enable, 593 .promiscuous_disable = hn_dev_promiscuous_disable, 594 .allmulticast_enable = hn_dev_allmulticast_enable, 595 .allmulticast_disable = hn_dev_allmulticast_disable, 596 .tx_queue_setup = hn_dev_tx_queue_setup, 597 .tx_queue_release = hn_dev_tx_queue_release, 598 .tx_done_cleanup = hn_dev_tx_done_cleanup, 599 .rx_queue_setup = hn_dev_rx_queue_setup, 600 .rx_queue_release = hn_dev_rx_queue_release, 601 .link_update = hn_dev_link_update, 602 .stats_get = hn_dev_stats_get, 603 .xstats_get = hn_dev_xstats_get, 604 .xstats_get_names = hn_dev_xstats_get_names, 605 .stats_reset = hn_dev_stats_reset, 606 .xstats_reset = hn_dev_stats_reset, 607 }; 608 609 /* 610 * Setup connection between PMD and kernel. 611 */ 612 static int 613 hn_attach(struct hn_data *hv, unsigned int mtu) 614 { 615 int error; 616 617 /* Attach NVS */ 618 error = hn_nvs_attach(hv, mtu); 619 if (error) 620 goto failed_nvs; 621 622 /* Attach RNDIS */ 623 error = hn_rndis_attach(hv); 624 if (error) 625 goto failed_rndis; 626 627 /* 628 * NOTE: 629 * Under certain conditions on certain versions of Hyper-V, 630 * the RNDIS rxfilter is _not_ zero on the hypervisor side 631 * after the successful RNDIS initialization. 632 */ 633 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); 634 return 0; 635 failed_rndis: 636 hn_nvs_detach(hv); 637 failed_nvs: 638 return error; 639 } 640 641 static void 642 hn_detach(struct hn_data *hv) 643 { 644 hn_nvs_detach(hv); 645 hn_rndis_detach(hv); 646 } 647 648 static int 649 eth_hn_dev_init(struct rte_eth_dev *eth_dev) 650 { 651 struct hn_data *hv = eth_dev->data->dev_private; 652 struct rte_device *device = eth_dev->device; 653 struct rte_vmbus_device *vmbus; 654 unsigned int rxr_cnt; 655 int err, max_chan; 656 657 PMD_INIT_FUNC_TRACE(); 658 659 vmbus = container_of(device, struct rte_vmbus_device, device); 660 eth_dev->dev_ops = &hn_eth_dev_ops; 661 eth_dev->tx_pkt_burst = &hn_xmit_pkts; 662 eth_dev->rx_pkt_burst = &hn_recv_pkts; 663 664 /* 665 * for secondary processes, we don't initialize any further as primary 666 * has already done this work. 667 */ 668 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 669 return 0; 670 671 /* Since Hyper-V only supports one MAC address, just use local data */ 672 eth_dev->data->mac_addrs = &hv->mac_addr; 673 674 hv->vmbus = vmbus; 675 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; 676 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; 677 hv->port_id = eth_dev->data->port_id; 678 hv->latency = HN_CHAN_LATENCY_NS; 679 680 err = hn_parse_args(eth_dev); 681 if (err) 682 return err; 683 684 /* Initialize primary channel input for control operations */ 685 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); 686 if (err) 687 return err; 688 689 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); 690 691 hv->primary = hn_rx_queue_alloc(hv, 0, 692 eth_dev->device->numa_node); 693 694 if (!hv->primary) 695 return -ENOMEM; 696 697 err = hn_attach(hv, ETHER_MTU); 698 if (err) 699 goto failed; 700 701 err = hn_tx_pool_init(eth_dev); 702 if (err) 703 goto failed; 704 705 err = hn_rndis_get_eaddr(hv, hv->mac_addr.addr_bytes); 706 if (err) 707 goto failed; 708 709 max_chan = rte_vmbus_max_channels(vmbus); 710 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); 711 if (max_chan <= 0) 712 goto failed; 713 714 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) 715 rxr_cnt = 1; 716 717 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); 718 719 return 0; 720 721 failed: 722 PMD_INIT_LOG(NOTICE, "device init failed"); 723 724 hn_detach(hv); 725 return err; 726 } 727 728 static int 729 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) 730 { 731 struct hn_data *hv = eth_dev->data->dev_private; 732 733 PMD_INIT_FUNC_TRACE(); 734 735 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 736 return 0; 737 738 hn_dev_stop(eth_dev); 739 hn_dev_close(eth_dev); 740 741 eth_dev->dev_ops = NULL; 742 eth_dev->tx_pkt_burst = NULL; 743 eth_dev->rx_pkt_burst = NULL; 744 745 hn_detach(hv); 746 rte_vmbus_chan_close(hv->primary->chan); 747 rte_free(hv->primary); 748 749 eth_dev->data->mac_addrs = NULL; 750 751 return 0; 752 } 753 754 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, 755 struct rte_vmbus_device *dev) 756 { 757 struct rte_eth_dev *eth_dev; 758 int ret; 759 760 PMD_INIT_FUNC_TRACE(); 761 762 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); 763 if (!eth_dev) 764 return -ENOMEM; 765 766 ret = eth_hn_dev_init(eth_dev); 767 if (ret) 768 eth_dev_vmbus_release(eth_dev); 769 else 770 rte_eth_dev_probing_finish(eth_dev); 771 772 return ret; 773 } 774 775 static int eth_hn_remove(struct rte_vmbus_device *dev) 776 { 777 struct rte_eth_dev *eth_dev; 778 int ret; 779 780 PMD_INIT_FUNC_TRACE(); 781 782 eth_dev = rte_eth_dev_allocated(dev->device.name); 783 if (!eth_dev) 784 return -ENODEV; 785 786 ret = eth_hn_dev_uninit(eth_dev); 787 if (ret) 788 return ret; 789 790 eth_dev_vmbus_release(eth_dev); 791 return 0; 792 } 793 794 /* Network device GUID */ 795 static const rte_uuid_t hn_net_ids[] = { 796 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ 797 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), 798 { 0 } 799 }; 800 801 static struct rte_vmbus_driver rte_netvsc_pmd = { 802 .id_table = hn_net_ids, 803 .probe = eth_hn_probe, 804 .remove = eth_hn_remove, 805 }; 806 807 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); 808 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); 809 810 RTE_INIT(hn_init_log); 811 static void 812 hn_init_log(void) 813 { 814 hn_logtype_init = rte_log_register("pmd.net.netvsc.init"); 815 if (hn_logtype_init >= 0) 816 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE); 817 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver"); 818 if (hn_logtype_driver >= 0) 819 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE); 820 } 821