1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2019 Cesnet 3 * Copyright(c) 2019 Netcope Technologies, a.s. <info@netcope.com> 4 * All rights reserved. 5 */ 6 7 #include <nfb/nfb.h> 8 #include <nfb/ndp.h> 9 #include <netcope/rxmac.h> 10 #include <netcope/txmac.h> 11 12 #include <rte_ethdev_pci.h> 13 #include <rte_kvargs.h> 14 15 #include "nfb_stats.h" 16 #include "nfb_rx.h" 17 #include "nfb_tx.h" 18 #include "nfb_rxmode.h" 19 #include "nfb.h" 20 21 /** 22 * Default MAC addr 23 */ 24 static const struct rte_ether_addr eth_addr = { 25 .addr_bytes = { 0x00, 0x11, 0x17, 0x00, 0x00, 0x00 } 26 }; 27 28 /** 29 * Open all RX DMA queues 30 * 31 * @param dev 32 * Pointer to nfb device. 33 * @param[out] rxmac 34 * Pointer to output array of nc_rxmac 35 * @param[out] max_rxmac 36 * Pointer to output max index of rxmac 37 */ 38 static void 39 nfb_nc_rxmac_init(struct nfb_device *nfb, 40 struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC], 41 uint16_t *max_rxmac) 42 { 43 *max_rxmac = 0; 44 while ((rxmac[*max_rxmac] = nc_rxmac_open_index(nfb, *max_rxmac))) 45 ++(*max_rxmac); 46 } 47 48 /** 49 * Open all TX DMA queues 50 * 51 * @param dev 52 * Pointer to nfb device. 53 * @param[out] txmac 54 * Pointer to output array of nc_txmac 55 * @param[out] max_rxmac 56 * Pointer to output max index of txmac 57 */ 58 static void 59 nfb_nc_txmac_init(struct nfb_device *nfb, 60 struct nc_txmac *txmac[RTE_MAX_NC_TXMAC], 61 uint16_t *max_txmac) 62 { 63 *max_txmac = 0; 64 while ((txmac[*max_txmac] = nc_txmac_open_index(nfb, *max_txmac))) 65 ++(*max_txmac); 66 } 67 68 /** 69 * Close all RX DMA queues 70 * 71 * @param rxmac 72 * Pointer to array of nc_rxmac 73 * @param max_rxmac 74 * Maximum index of rxmac 75 */ 76 static void 77 nfb_nc_rxmac_deinit(struct nc_rxmac *rxmac[RTE_MAX_NC_RXMAC], 78 uint16_t max_rxmac) 79 { 80 for (; max_rxmac > 0; --max_rxmac) { 81 nc_rxmac_close(rxmac[max_rxmac]); 82 rxmac[max_rxmac] = NULL; 83 } 84 } 85 86 /** 87 * Close all TX DMA queues 88 * 89 * @param txmac 90 * Pointer to array of nc_txmac 91 * @param max_txmac 92 * Maximum index of txmac 93 */ 94 static void 95 nfb_nc_txmac_deinit(struct nc_txmac *txmac[RTE_MAX_NC_TXMAC], 96 uint16_t max_txmac) 97 { 98 for (; max_txmac > 0; --max_txmac) { 99 nc_txmac_close(txmac[max_txmac]); 100 txmac[max_txmac] = NULL; 101 } 102 } 103 104 /** 105 * DPDK callback to start the device. 106 * 107 * Start device by starting all configured queues. 108 * 109 * @param dev 110 * Pointer to Ethernet device structure. 111 * 112 * @return 113 * 0 on success, a negative errno value otherwise. 114 */ 115 static int 116 nfb_eth_dev_start(struct rte_eth_dev *dev) 117 { 118 int ret; 119 uint16_t i; 120 uint16_t nb_rx = dev->data->nb_rx_queues; 121 uint16_t nb_tx = dev->data->nb_tx_queues; 122 123 for (i = 0; i < nb_rx; i++) { 124 ret = nfb_eth_rx_queue_start(dev, i); 125 if (ret != 0) 126 goto err_rx; 127 } 128 129 for (i = 0; i < nb_tx; i++) { 130 ret = nfb_eth_tx_queue_start(dev, i); 131 if (ret != 0) 132 goto err_tx; 133 } 134 135 return 0; 136 137 err_tx: 138 for (i = 0; i < nb_tx; i++) 139 nfb_eth_tx_queue_stop(dev, i); 140 err_rx: 141 for (i = 0; i < nb_rx; i++) 142 nfb_eth_rx_queue_stop(dev, i); 143 return ret; 144 } 145 146 /** 147 * DPDK callback to stop the device. 148 * 149 * Stop device by stopping all configured queues. 150 * 151 * @param dev 152 * Pointer to Ethernet device structure. 153 */ 154 static void 155 nfb_eth_dev_stop(struct rte_eth_dev *dev) 156 { 157 uint16_t i; 158 uint16_t nb_rx = dev->data->nb_rx_queues; 159 uint16_t nb_tx = dev->data->nb_tx_queues; 160 161 for (i = 0; i < nb_tx; i++) 162 nfb_eth_tx_queue_stop(dev, i); 163 164 for (i = 0; i < nb_rx; i++) 165 nfb_eth_rx_queue_stop(dev, i); 166 } 167 168 /** 169 * DPDK callback for Ethernet device configuration. 170 * 171 * @param dev 172 * Pointer to Ethernet device structure. 173 * 174 * @return 175 * 0 on success, a negative errno value otherwise. 176 */ 177 static int 178 nfb_eth_dev_configure(struct rte_eth_dev *dev __rte_unused) 179 { 180 return 0; 181 } 182 183 /** 184 * DPDK callback to get information about the device. 185 * 186 * @param dev 187 * Pointer to Ethernet device structure. 188 * @param[out] info 189 * Info structure output buffer. 190 */ 191 static int 192 nfb_eth_dev_info(struct rte_eth_dev *dev, 193 struct rte_eth_dev_info *dev_info) 194 { 195 dev_info->max_mac_addrs = 1; 196 dev_info->max_rx_pktlen = (uint32_t)-1; 197 dev_info->max_rx_queues = dev->data->nb_rx_queues; 198 dev_info->max_tx_queues = dev->data->nb_tx_queues; 199 dev_info->speed_capa = ETH_LINK_SPEED_100G; 200 201 return 0; 202 } 203 204 /** 205 * DPDK callback to close the device. 206 * 207 * Destroy all queues and objects, free memory. 208 * 209 * @param dev 210 * Pointer to Ethernet device structure. 211 */ 212 static int 213 nfb_eth_dev_close(struct rte_eth_dev *dev) 214 { 215 struct pmd_internals *internals = dev->data->dev_private; 216 uint16_t i; 217 uint16_t nb_rx = dev->data->nb_rx_queues; 218 uint16_t nb_tx = dev->data->nb_tx_queues; 219 220 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 221 return 0; 222 223 nfb_eth_dev_stop(dev); 224 225 nfb_nc_rxmac_deinit(internals->rxmac, internals->max_rxmac); 226 nfb_nc_txmac_deinit(internals->txmac, internals->max_txmac); 227 228 for (i = 0; i < nb_rx; i++) { 229 nfb_eth_rx_queue_release(dev->data->rx_queues[i]); 230 dev->data->rx_queues[i] = NULL; 231 } 232 dev->data->nb_rx_queues = 0; 233 for (i = 0; i < nb_tx; i++) { 234 nfb_eth_tx_queue_release(dev->data->tx_queues[i]); 235 dev->data->tx_queues[i] = NULL; 236 } 237 dev->data->nb_tx_queues = 0; 238 239 return 0; 240 } 241 242 /** 243 * DPDK callback to retrieve physical link information. 244 * 245 * @param dev 246 * Pointer to Ethernet device structure. 247 * @param[out] link 248 * Storage for current link status. 249 * 250 * @return 251 * 0 on success, a negative errno value otherwise. 252 */ 253 static int 254 nfb_eth_link_update(struct rte_eth_dev *dev, 255 int wait_to_complete __rte_unused) 256 { 257 uint16_t i; 258 struct nc_rxmac_status status; 259 struct rte_eth_link link; 260 memset(&link, 0, sizeof(link)); 261 262 struct pmd_internals *internals = dev->data->dev_private; 263 264 status.speed = MAC_SPEED_UNKNOWN; 265 266 link.link_speed = ETH_SPEED_NUM_NONE; 267 link.link_status = ETH_LINK_DOWN; 268 link.link_duplex = ETH_LINK_FULL_DUPLEX; 269 link.link_autoneg = ETH_LINK_SPEED_FIXED; 270 271 if (internals->rxmac[0] != NULL) { 272 nc_rxmac_read_status(internals->rxmac[0], &status); 273 274 switch (status.speed) { 275 case MAC_SPEED_10G: 276 link.link_speed = ETH_SPEED_NUM_10G; 277 break; 278 case MAC_SPEED_40G: 279 link.link_speed = ETH_SPEED_NUM_40G; 280 break; 281 case MAC_SPEED_100G: 282 link.link_speed = ETH_SPEED_NUM_100G; 283 break; 284 default: 285 link.link_speed = ETH_SPEED_NUM_NONE; 286 break; 287 } 288 } 289 290 for (i = 0; i < internals->max_rxmac; ++i) { 291 nc_rxmac_read_status(internals->rxmac[i], &status); 292 293 if (status.enabled && status.link_up) { 294 link.link_status = ETH_LINK_UP; 295 break; 296 } 297 } 298 299 rte_eth_linkstatus_set(dev, &link); 300 301 return 0; 302 } 303 304 /** 305 * DPDK callback to bring the link UP. 306 * 307 * @param dev 308 * Pointer to Ethernet device structure. 309 * 310 * @return 311 * 0 on success, a negative errno value otherwise. 312 */ 313 static int 314 nfb_eth_dev_set_link_up(struct rte_eth_dev *dev) 315 { 316 struct pmd_internals *internals = (struct pmd_internals *) 317 dev->data->dev_private; 318 319 uint16_t i; 320 for (i = 0; i < internals->max_rxmac; ++i) 321 nc_rxmac_enable(internals->rxmac[i]); 322 323 for (i = 0; i < internals->max_txmac; ++i) 324 nc_txmac_enable(internals->txmac[i]); 325 326 return 0; 327 } 328 329 /** 330 * DPDK callback to bring the link DOWN. 331 * 332 * @param dev 333 * Pointer to Ethernet device structure. 334 * 335 * @return 336 * 0 on success, a negative errno value otherwise. 337 */ 338 static int 339 nfb_eth_dev_set_link_down(struct rte_eth_dev *dev) 340 { 341 struct pmd_internals *internals = (struct pmd_internals *) 342 dev->data->dev_private; 343 344 uint16_t i; 345 for (i = 0; i < internals->max_rxmac; ++i) 346 nc_rxmac_disable(internals->rxmac[i]); 347 348 for (i = 0; i < internals->max_txmac; ++i) 349 nc_txmac_disable(internals->txmac[i]); 350 351 return 0; 352 } 353 354 /** 355 * DPDK callback to set primary MAC address. 356 * 357 * @param dev 358 * Pointer to Ethernet device structure. 359 * @param mac_addr 360 * MAC address to register. 361 * 362 * @return 363 * 0 on success, a negative errno value otherwise. 364 */ 365 static int 366 nfb_eth_mac_addr_set(struct rte_eth_dev *dev, 367 struct rte_ether_addr *mac_addr) 368 { 369 unsigned int i; 370 uint64_t mac = 0; 371 struct rte_eth_dev_data *data = dev->data; 372 struct pmd_internals *internals = (struct pmd_internals *) 373 data->dev_private; 374 375 if (!rte_is_valid_assigned_ether_addr(mac_addr)) 376 return -EINVAL; 377 378 for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) { 379 mac <<= 8; 380 mac |= mac_addr->addr_bytes[i] & 0xFF; 381 } 382 383 for (i = 0; i < internals->max_rxmac; ++i) 384 nc_rxmac_set_mac(internals->rxmac[i], 0, mac, 1); 385 386 rte_ether_addr_copy(mac_addr, data->mac_addrs); 387 return 0; 388 } 389 390 static const struct eth_dev_ops ops = { 391 .dev_start = nfb_eth_dev_start, 392 .dev_stop = nfb_eth_dev_stop, 393 .dev_set_link_up = nfb_eth_dev_set_link_up, 394 .dev_set_link_down = nfb_eth_dev_set_link_down, 395 .dev_close = nfb_eth_dev_close, 396 .dev_configure = nfb_eth_dev_configure, 397 .dev_infos_get = nfb_eth_dev_info, 398 .promiscuous_enable = nfb_eth_promiscuous_enable, 399 .promiscuous_disable = nfb_eth_promiscuous_disable, 400 .allmulticast_enable = nfb_eth_allmulticast_enable, 401 .allmulticast_disable = nfb_eth_allmulticast_disable, 402 .rx_queue_start = nfb_eth_rx_queue_start, 403 .rx_queue_stop = nfb_eth_rx_queue_stop, 404 .tx_queue_start = nfb_eth_tx_queue_start, 405 .tx_queue_stop = nfb_eth_tx_queue_stop, 406 .rx_queue_setup = nfb_eth_rx_queue_setup, 407 .tx_queue_setup = nfb_eth_tx_queue_setup, 408 .rx_queue_release = nfb_eth_rx_queue_release, 409 .tx_queue_release = nfb_eth_tx_queue_release, 410 .link_update = nfb_eth_link_update, 411 .stats_get = nfb_eth_stats_get, 412 .stats_reset = nfb_eth_stats_reset, 413 .mac_addr_set = nfb_eth_mac_addr_set, 414 }; 415 416 /** 417 * DPDK callback to initialize an ethernet device 418 * 419 * @param dev 420 * Pointer to ethernet device structure 421 * 422 * @return 423 * 0 on success, a negative errno value otherwise. 424 */ 425 static int 426 nfb_eth_dev_init(struct rte_eth_dev *dev) 427 { 428 struct rte_eth_dev_data *data = dev->data; 429 struct pmd_internals *internals = (struct pmd_internals *) 430 data->dev_private; 431 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); 432 struct rte_pci_addr *pci_addr = &pci_dev->addr; 433 struct rte_ether_addr eth_addr_init; 434 struct rte_kvargs *kvlist; 435 436 RTE_LOG(INFO, PMD, "Initializing NFB device (" PCI_PRI_FMT ")\n", 437 pci_addr->domain, pci_addr->bus, pci_addr->devid, 438 pci_addr->function); 439 440 snprintf(internals->nfb_dev, PATH_MAX, 441 "/dev/nfb/by-pci-slot/" PCI_PRI_FMT, 442 pci_addr->domain, pci_addr->bus, pci_addr->devid, 443 pci_addr->function); 444 445 /* Check validity of device args */ 446 if (dev->device->devargs != NULL && 447 dev->device->devargs->args != NULL && 448 strlen(dev->device->devargs->args) > 0) { 449 kvlist = rte_kvargs_parse(dev->device->devargs->args, 450 VALID_KEYS); 451 if (kvlist == NULL) { 452 RTE_LOG(ERR, PMD, "Failed to parse device arguments %s", 453 dev->device->devargs->args); 454 rte_kvargs_free(kvlist); 455 return -EINVAL; 456 } 457 rte_kvargs_free(kvlist); 458 } 459 460 /* 461 * Get number of available DMA RX and TX queues, which is maximum 462 * number of queues that can be created and store it in private device 463 * data structure. 464 */ 465 internals->nfb = nfb_open(internals->nfb_dev); 466 if (internals->nfb == NULL) { 467 RTE_LOG(ERR, PMD, "nfb_open(): failed to open %s", 468 internals->nfb_dev); 469 return -EINVAL; 470 } 471 data->nb_rx_queues = ndp_get_rx_queue_available_count(internals->nfb); 472 data->nb_tx_queues = ndp_get_tx_queue_available_count(internals->nfb); 473 474 RTE_LOG(INFO, PMD, "Available NDP queues RX: %u TX: %u\n", 475 data->nb_rx_queues, data->nb_tx_queues); 476 477 nfb_nc_rxmac_init(internals->nfb, 478 internals->rxmac, 479 &internals->max_rxmac); 480 nfb_nc_txmac_init(internals->nfb, 481 internals->txmac, 482 &internals->max_txmac); 483 484 /* Set rx, tx burst functions */ 485 dev->rx_pkt_burst = nfb_eth_ndp_rx; 486 dev->tx_pkt_burst = nfb_eth_ndp_tx; 487 488 /* Set function callbacks for Ethernet API */ 489 dev->dev_ops = &ops; 490 491 /* Get link state */ 492 nfb_eth_link_update(dev, 0); 493 494 /* Allocate space for one mac address */ 495 data->mac_addrs = rte_zmalloc(data->name, sizeof(struct rte_ether_addr), 496 RTE_CACHE_LINE_SIZE); 497 if (data->mac_addrs == NULL) { 498 RTE_LOG(ERR, PMD, "Could not alloc space for MAC address!\n"); 499 nfb_close(internals->nfb); 500 return -EINVAL; 501 } 502 503 rte_eth_random_addr(eth_addr_init.addr_bytes); 504 eth_addr_init.addr_bytes[0] = eth_addr.addr_bytes[0]; 505 eth_addr_init.addr_bytes[1] = eth_addr.addr_bytes[1]; 506 eth_addr_init.addr_bytes[2] = eth_addr.addr_bytes[2]; 507 508 nfb_eth_mac_addr_set(dev, ð_addr_init); 509 510 data->promiscuous = nfb_eth_promiscuous_get(dev); 511 data->all_multicast = nfb_eth_allmulticast_get(dev); 512 internals->rx_filter_original = data->promiscuous; 513 514 RTE_LOG(INFO, PMD, "NFB device (" 515 PCI_PRI_FMT ") successfully initialized\n", 516 pci_addr->domain, pci_addr->bus, pci_addr->devid, 517 pci_addr->function); 518 519 return 0; 520 } 521 522 /** 523 * DPDK callback to uninitialize an ethernet device 524 * 525 * @param dev 526 * Pointer to ethernet device structure 527 * 528 * @return 529 * 0 on success, a negative errno value otherwise. 530 */ 531 static int 532 nfb_eth_dev_uninit(struct rte_eth_dev *dev) 533 { 534 struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); 535 struct rte_pci_addr *pci_addr = &pci_dev->addr; 536 537 nfb_eth_dev_close(dev); 538 539 RTE_LOG(INFO, PMD, "NFB device (" 540 PCI_PRI_FMT ") successfully uninitialized\n", 541 pci_addr->domain, pci_addr->bus, pci_addr->devid, 542 pci_addr->function); 543 544 return 0; 545 } 546 547 static const struct rte_pci_id nfb_pci_id_table[] = { 548 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_40G2) }, 549 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_100G2) }, 550 { RTE_PCI_DEVICE(PCI_VENDOR_ID_NETCOPE, PCI_DEVICE_ID_NFB_200G2QL) }, 551 { RTE_PCI_DEVICE(PCI_VENDOR_ID_SILICOM, PCI_DEVICE_ID_FB2CGG3) }, 552 { RTE_PCI_DEVICE(PCI_VENDOR_ID_SILICOM, PCI_DEVICE_ID_FB2CGG3D) }, 553 { .vendor_id = 0, } 554 }; 555 556 /** 557 * DPDK callback to register a PCI device. 558 * 559 * This function spawns Ethernet devices out of a given PCI device. 560 * 561 * @param[in] pci_drv 562 * PCI driver structure (nfb_driver). 563 * @param[in] pci_dev 564 * PCI device information. 565 * 566 * @return 567 * 0 on success, a negative errno value otherwise. 568 */ 569 static int 570 nfb_eth_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, 571 struct rte_pci_device *pci_dev) 572 { 573 return rte_eth_dev_pci_generic_probe(pci_dev, 574 sizeof(struct pmd_internals), nfb_eth_dev_init); 575 } 576 577 /** 578 * DPDK callback to remove a PCI device. 579 * 580 * This function removes all Ethernet devices belong to a given PCI device. 581 * 582 * @param[in] pci_dev 583 * Pointer to the PCI device. 584 * 585 * @return 586 * 0 on success, the function cannot fail. 587 */ 588 static int 589 nfb_eth_pci_remove(struct rte_pci_device *pci_dev) 590 { 591 return rte_eth_dev_pci_generic_remove(pci_dev, nfb_eth_dev_uninit); 592 } 593 594 static struct rte_pci_driver nfb_eth_driver = { 595 .id_table = nfb_pci_id_table, 596 .probe = nfb_eth_pci_probe, 597 .remove = nfb_eth_pci_remove, 598 }; 599 600 RTE_PMD_REGISTER_PCI(RTE_NFB_DRIVER_NAME, nfb_eth_driver); 601 RTE_PMD_REGISTER_PCI_TABLE(RTE_NFB_DRIVER_NAME, nfb_pci_id_table); 602 RTE_PMD_REGISTER_KMOD_DEP(RTE_NFB_DRIVER_NAME, "* nfb"); 603 RTE_PMD_REGISTER_PARAM_STRING(RTE_NFB_DRIVER_NAME, TIMESTAMP_ARG "=<0|1>"); 604