1 /* 2 * SPDX-License-Identifier: BSD-3-Clause 3 * Copyright 2016 Intel Corporation. 4 * Copyright 2017 Cavium, Inc. 5 */ 6 7 #include "pipeline_common.h" 8 9 static __rte_always_inline int 10 worker_generic(void *arg) 11 { 12 struct rte_event ev; 13 14 struct worker_data *data = (struct worker_data *)arg; 15 uint8_t dev_id = data->dev_id; 16 uint8_t port_id = data->port_id; 17 size_t sent = 0, received = 0; 18 unsigned int lcore_id = rte_lcore_id(); 19 20 while (!fdata->done) { 21 22 if (fdata->cap.scheduler) 23 fdata->cap.scheduler(lcore_id); 24 25 if (!fdata->worker_core[lcore_id]) { 26 rte_pause(); 27 continue; 28 } 29 30 const uint16_t nb_rx = rte_event_dequeue_burst(dev_id, port_id, 31 &ev, 1, 0); 32 33 if (nb_rx == 0) { 34 rte_pause(); 35 continue; 36 } 37 received++; 38 39 /* The first worker stage does classification */ 40 if (ev.queue_id == cdata.qid[0]) 41 ev.flow_id = ev.mbuf->hash.rss 42 % cdata.num_fids; 43 44 ev.queue_id = cdata.next_qid[ev.queue_id]; 45 ev.op = RTE_EVENT_OP_FORWARD; 46 ev.sched_type = cdata.queue_type; 47 48 work(); 49 50 while (rte_event_enqueue_burst(dev_id, port_id, &ev, 1) != 1) 51 rte_pause(); 52 sent++; 53 } 54 55 if (!cdata.quiet) 56 printf(" worker %u thread done. RX=%zu TX=%zu\n", 57 rte_lcore_id(), received, sent); 58 59 return 0; 60 } 61 62 static int 63 worker_generic_burst(void *arg) 64 { 65 struct rte_event events[BATCH_SIZE]; 66 67 struct worker_data *data = (struct worker_data *)arg; 68 uint8_t dev_id = data->dev_id; 69 uint8_t port_id = data->port_id; 70 size_t sent = 0, received = 0; 71 unsigned int lcore_id = rte_lcore_id(); 72 73 while (!fdata->done) { 74 uint16_t i; 75 76 if (fdata->cap.scheduler) 77 fdata->cap.scheduler(lcore_id); 78 79 if (!fdata->worker_core[lcore_id]) { 80 rte_pause(); 81 continue; 82 } 83 84 const uint16_t nb_rx = rte_event_dequeue_burst(dev_id, port_id, 85 events, RTE_DIM(events), 0); 86 87 if (nb_rx == 0) { 88 rte_pause(); 89 continue; 90 } 91 received += nb_rx; 92 93 for (i = 0; i < nb_rx; i++) { 94 95 /* The first worker stage does classification */ 96 if (events[i].queue_id == cdata.qid[0]) 97 events[i].flow_id = events[i].mbuf->hash.rss 98 % cdata.num_fids; 99 100 events[i].queue_id = cdata.next_qid[events[i].queue_id]; 101 events[i].op = RTE_EVENT_OP_FORWARD; 102 events[i].sched_type = cdata.queue_type; 103 104 work(); 105 } 106 uint16_t nb_tx = rte_event_enqueue_burst(dev_id, port_id, 107 events, nb_rx); 108 while (nb_tx < nb_rx && !fdata->done) 109 nb_tx += rte_event_enqueue_burst(dev_id, port_id, 110 events + nb_tx, 111 nb_rx - nb_tx); 112 sent += nb_tx; 113 } 114 115 if (!cdata.quiet) 116 printf(" worker %u thread done. RX=%zu TX=%zu\n", 117 rte_lcore_id(), received, sent); 118 119 return 0; 120 } 121 122 static int 123 setup_eventdev_generic(struct worker_data *worker_data) 124 { 125 const uint8_t dev_id = 0; 126 /* +1 stages is for a SINGLE_LINK TX stage */ 127 const uint8_t nb_queues = cdata.num_stages + 1; 128 const uint8_t nb_ports = cdata.num_workers; 129 struct rte_event_dev_config config = { 130 .nb_event_queues = nb_queues, 131 .nb_event_ports = nb_ports, 132 .nb_single_link_event_port_queues = 1, 133 .nb_events_limit = 4096, 134 .nb_event_queue_flows = 1024, 135 .nb_event_port_dequeue_depth = 128, 136 .nb_event_port_enqueue_depth = 128, 137 }; 138 struct rte_event_port_conf wkr_p_conf = { 139 .dequeue_depth = cdata.worker_cq_depth, 140 .enqueue_depth = 64, 141 .new_event_threshold = 4096, 142 }; 143 struct rte_event_queue_conf wkr_q_conf = { 144 .schedule_type = cdata.queue_type, 145 .priority = RTE_EVENT_DEV_PRIORITY_NORMAL, 146 .nb_atomic_flows = 1024, 147 .nb_atomic_order_sequences = 1024, 148 }; 149 struct rte_event_queue_conf tx_q_conf = { 150 .priority = RTE_EVENT_DEV_PRIORITY_HIGHEST, 151 .event_queue_cfg = RTE_EVENT_QUEUE_CFG_SINGLE_LINK, 152 }; 153 154 struct port_link worker_queues[MAX_NUM_STAGES]; 155 uint8_t disable_implicit_release; 156 unsigned int i; 157 158 int ret, ndev = rte_event_dev_count(); 159 if (ndev < 1) { 160 printf("%d: No Eventdev Devices Found\n", __LINE__); 161 return -1; 162 } 163 164 struct rte_event_dev_info dev_info; 165 ret = rte_event_dev_info_get(dev_id, &dev_info); 166 printf("\tEventdev %d: %s\n", dev_id, dev_info.driver_name); 167 168 disable_implicit_release = (dev_info.event_dev_cap & 169 RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE); 170 171 wkr_p_conf.event_port_cfg = disable_implicit_release ? 172 RTE_EVENT_PORT_CFG_DISABLE_IMPL_REL : 0; 173 174 if (dev_info.max_num_events < config.nb_events_limit) 175 config.nb_events_limit = dev_info.max_num_events; 176 if (dev_info.max_event_port_dequeue_depth < 177 config.nb_event_port_dequeue_depth) 178 config.nb_event_port_dequeue_depth = 179 dev_info.max_event_port_dequeue_depth; 180 if (dev_info.max_event_port_enqueue_depth < 181 config.nb_event_port_enqueue_depth) 182 config.nb_event_port_enqueue_depth = 183 dev_info.max_event_port_enqueue_depth; 184 185 ret = rte_event_dev_configure(dev_id, &config); 186 if (ret < 0) { 187 printf("%d: Error configuring device\n", __LINE__); 188 return -1; 189 } 190 191 /* Q creation - one load balanced per pipeline stage*/ 192 printf(" Stages:\n"); 193 for (i = 0; i < cdata.num_stages; i++) { 194 if (rte_event_queue_setup(dev_id, i, &wkr_q_conf) < 0) { 195 printf("%d: error creating qid %d\n", __LINE__, i); 196 return -1; 197 } 198 cdata.qid[i] = i; 199 cdata.next_qid[i] = i+1; 200 worker_queues[i].queue_id = i; 201 if (cdata.enable_queue_priorities) { 202 /* calculate priority stepping for each stage, leaving 203 * headroom of 1 for the SINGLE_LINK TX below 204 */ 205 const uint32_t prio_delta = 206 (RTE_EVENT_DEV_PRIORITY_LOWEST-1) / nb_queues; 207 208 /* higher priority for queues closer to tx */ 209 wkr_q_conf.priority = 210 RTE_EVENT_DEV_PRIORITY_LOWEST - prio_delta * i; 211 } 212 213 const char *type_str = "Atomic"; 214 switch (wkr_q_conf.schedule_type) { 215 case RTE_SCHED_TYPE_ORDERED: 216 type_str = "Ordered"; 217 break; 218 case RTE_SCHED_TYPE_PARALLEL: 219 type_str = "Parallel"; 220 break; 221 } 222 printf("\tStage %d, Type %s\tPriority = %d\n", i, type_str, 223 wkr_q_conf.priority); 224 } 225 printf("\n"); 226 227 /* final queue for sending to TX core */ 228 if (rte_event_queue_setup(dev_id, i, &tx_q_conf) < 0) { 229 printf("%d: error creating qid %d\n", __LINE__, i); 230 return -1; 231 } 232 cdata.tx_queue_id = i; 233 234 if (wkr_p_conf.new_event_threshold > config.nb_events_limit) 235 wkr_p_conf.new_event_threshold = config.nb_events_limit; 236 if (wkr_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth) 237 wkr_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth; 238 if (wkr_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth) 239 wkr_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth; 240 241 /* set up one port per worker, linking to all stage queues */ 242 for (i = 0; i < cdata.num_workers; i++) { 243 struct worker_data *w = &worker_data[i]; 244 w->dev_id = dev_id; 245 if (rte_event_port_setup(dev_id, i, &wkr_p_conf) < 0) { 246 printf("Error setting up port %d\n", i); 247 return -1; 248 } 249 250 uint32_t s; 251 for (s = 0; s < cdata.num_stages; s++) { 252 if (rte_event_port_link(dev_id, i, 253 &worker_queues[s].queue_id, 254 &worker_queues[s].priority, 255 1) != 1) { 256 printf("%d: error creating link for port %d\n", 257 __LINE__, i); 258 return -1; 259 } 260 } 261 w->port_id = i; 262 } 263 264 ret = rte_event_dev_service_id_get(dev_id, 265 &fdata->evdev_service_id); 266 if (ret != -ESRCH && ret != 0) { 267 printf("Error getting the service ID for sw eventdev\n"); 268 return -1; 269 } 270 rte_service_runstate_set(fdata->evdev_service_id, 1); 271 rte_service_set_runstate_mapped_check(fdata->evdev_service_id, 0); 272 273 return dev_id; 274 } 275 276 /* 277 * Initializes a given port using global settings and with the RX buffers 278 * coming from the mbuf_pool passed as a parameter. 279 */ 280 static inline int 281 port_init(uint8_t port, struct rte_mempool *mbuf_pool) 282 { 283 struct rte_eth_rxconf rx_conf; 284 static const struct rte_eth_conf port_conf_default = { 285 .rxmode = { 286 .mq_mode = ETH_MQ_RX_RSS, 287 .max_rx_pkt_len = RTE_ETHER_MAX_LEN, 288 }, 289 .rx_adv_conf = { 290 .rss_conf = { 291 .rss_hf = ETH_RSS_IP | 292 ETH_RSS_TCP | 293 ETH_RSS_UDP, 294 } 295 } 296 }; 297 const uint16_t rx_rings = 1, tx_rings = 1; 298 const uint16_t rx_ring_size = 512, tx_ring_size = 512; 299 struct rte_eth_conf port_conf = port_conf_default; 300 int retval; 301 uint16_t q; 302 struct rte_eth_dev_info dev_info; 303 struct rte_eth_txconf txconf; 304 305 if (!rte_eth_dev_is_valid_port(port)) 306 return -1; 307 308 retval = rte_eth_dev_info_get(port, &dev_info); 309 if (retval != 0) { 310 printf("Error during getting device (port %u) info: %s\n", 311 port, strerror(-retval)); 312 return retval; 313 } 314 315 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 316 port_conf.txmode.offloads |= 317 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 318 319 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_RSS_HASH) 320 port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH; 321 322 rx_conf = dev_info.default_rxconf; 323 rx_conf.offloads = port_conf.rxmode.offloads; 324 325 port_conf.rx_adv_conf.rss_conf.rss_hf &= 326 dev_info.flow_type_rss_offloads; 327 if (port_conf.rx_adv_conf.rss_conf.rss_hf != 328 port_conf_default.rx_adv_conf.rss_conf.rss_hf) { 329 printf("Port %u modified RSS hash function based on hardware support," 330 "requested:%#"PRIx64" configured:%#"PRIx64"\n", 331 port, 332 port_conf_default.rx_adv_conf.rss_conf.rss_hf, 333 port_conf.rx_adv_conf.rss_conf.rss_hf); 334 } 335 336 /* Configure the Ethernet device. */ 337 retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf); 338 if (retval != 0) 339 return retval; 340 341 /* Allocate and set up 1 RX queue per Ethernet port. */ 342 for (q = 0; q < rx_rings; q++) { 343 retval = rte_eth_rx_queue_setup(port, q, rx_ring_size, 344 rte_eth_dev_socket_id(port), &rx_conf, 345 mbuf_pool); 346 if (retval < 0) 347 return retval; 348 } 349 350 txconf = dev_info.default_txconf; 351 txconf.offloads = port_conf_default.txmode.offloads; 352 /* Allocate and set up 1 TX queue per Ethernet port. */ 353 for (q = 0; q < tx_rings; q++) { 354 retval = rte_eth_tx_queue_setup(port, q, tx_ring_size, 355 rte_eth_dev_socket_id(port), &txconf); 356 if (retval < 0) 357 return retval; 358 } 359 360 /* Display the port MAC address. */ 361 struct rte_ether_addr addr; 362 retval = rte_eth_macaddr_get(port, &addr); 363 if (retval != 0) { 364 printf("Failed to get MAC address (port %u): %s\n", 365 port, rte_strerror(-retval)); 366 return retval; 367 } 368 369 printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8 370 " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n", 371 (unsigned int)port, RTE_ETHER_ADDR_BYTES(&addr)); 372 373 /* Enable RX in promiscuous mode for the Ethernet device. */ 374 retval = rte_eth_promiscuous_enable(port); 375 if (retval != 0) 376 return retval; 377 378 return 0; 379 } 380 381 static int 382 init_ports(uint16_t num_ports) 383 { 384 uint16_t portid; 385 386 if (!cdata.num_mbuf) 387 cdata.num_mbuf = 16384 * num_ports; 388 389 struct rte_mempool *mp = rte_pktmbuf_pool_create("packet_pool", 390 /* mbufs */ cdata.num_mbuf, 391 /* cache_size */ 512, 392 /* priv_size*/ 0, 393 /* data_room_size */ RTE_MBUF_DEFAULT_BUF_SIZE, 394 rte_socket_id()); 395 396 RTE_ETH_FOREACH_DEV(portid) 397 if (port_init(portid, mp) != 0) 398 rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu16 "\n", 399 portid); 400 401 return 0; 402 } 403 404 static void 405 init_adapters(uint16_t nb_ports) 406 { 407 int i; 408 int ret; 409 uint8_t tx_port_id = 0; 410 uint8_t evdev_id = 0; 411 struct rte_event_dev_info dev_info; 412 413 ret = rte_event_dev_info_get(evdev_id, &dev_info); 414 415 struct rte_event_port_conf adptr_p_conf = { 416 .dequeue_depth = cdata.worker_cq_depth, 417 .enqueue_depth = 64, 418 .new_event_threshold = 4096, 419 }; 420 421 if (adptr_p_conf.new_event_threshold > dev_info.max_num_events) 422 adptr_p_conf.new_event_threshold = dev_info.max_num_events; 423 if (adptr_p_conf.dequeue_depth > dev_info.max_event_port_dequeue_depth) 424 adptr_p_conf.dequeue_depth = 425 dev_info.max_event_port_dequeue_depth; 426 if (adptr_p_conf.enqueue_depth > dev_info.max_event_port_enqueue_depth) 427 adptr_p_conf.enqueue_depth = 428 dev_info.max_event_port_enqueue_depth; 429 430 init_ports(nb_ports); 431 /* Create one adapter for all the ethernet ports. */ 432 ret = rte_event_eth_rx_adapter_create(cdata.rx_adapter_id, evdev_id, 433 &adptr_p_conf); 434 if (ret) 435 rte_exit(EXIT_FAILURE, "failed to create rx adapter[%d]", 436 cdata.rx_adapter_id); 437 438 ret = rte_event_eth_tx_adapter_create(cdata.tx_adapter_id, evdev_id, 439 &adptr_p_conf); 440 if (ret) 441 rte_exit(EXIT_FAILURE, "failed to create tx adapter[%d]", 442 cdata.tx_adapter_id); 443 444 struct rte_event_eth_rx_adapter_queue_conf queue_conf; 445 memset(&queue_conf, 0, sizeof(queue_conf)); 446 queue_conf.ev.sched_type = cdata.queue_type; 447 queue_conf.ev.queue_id = cdata.qid[0]; 448 449 for (i = 0; i < nb_ports; i++) { 450 ret = rte_event_eth_rx_adapter_queue_add(cdata.rx_adapter_id, i, 451 -1, &queue_conf); 452 if (ret) 453 rte_exit(EXIT_FAILURE, 454 "Failed to add queues to Rx adapter"); 455 456 ret = rte_event_eth_tx_adapter_queue_add(cdata.tx_adapter_id, i, 457 -1); 458 if (ret) 459 rte_exit(EXIT_FAILURE, 460 "Failed to add queues to Tx adapter"); 461 } 462 463 ret = rte_event_eth_tx_adapter_event_port_get(cdata.tx_adapter_id, 464 &tx_port_id); 465 if (ret) 466 rte_exit(EXIT_FAILURE, 467 "Failed to get Tx adapter port id"); 468 ret = rte_event_port_link(evdev_id, tx_port_id, &cdata.tx_queue_id, 469 NULL, 1); 470 if (ret != 1) 471 rte_exit(EXIT_FAILURE, 472 "Unable to link Tx adapter port to Tx queue"); 473 474 ret = rte_event_eth_rx_adapter_service_id_get(cdata.rx_adapter_id, 475 &fdata->rxadptr_service_id); 476 if (ret != -ESRCH && ret != 0) { 477 rte_exit(EXIT_FAILURE, 478 "Error getting the service ID for Rx adapter\n"); 479 } 480 rte_service_runstate_set(fdata->rxadptr_service_id, 1); 481 rte_service_set_runstate_mapped_check(fdata->rxadptr_service_id, 0); 482 483 ret = rte_event_eth_tx_adapter_service_id_get(cdata.tx_adapter_id, 484 &fdata->txadptr_service_id); 485 if (ret != -ESRCH && ret != 0) { 486 rte_exit(EXIT_FAILURE, 487 "Error getting the service ID for Tx adapter\n"); 488 } 489 rte_service_runstate_set(fdata->txadptr_service_id, 1); 490 rte_service_set_runstate_mapped_check(fdata->txadptr_service_id, 0); 491 492 ret = rte_event_eth_rx_adapter_start(cdata.rx_adapter_id); 493 if (ret) 494 rte_exit(EXIT_FAILURE, "Rx adapter[%d] start failed", 495 cdata.rx_adapter_id); 496 497 ret = rte_event_eth_tx_adapter_start(cdata.tx_adapter_id); 498 if (ret) 499 rte_exit(EXIT_FAILURE, "Tx adapter[%d] start failed", 500 cdata.tx_adapter_id); 501 502 if (rte_event_dev_start(evdev_id) < 0) 503 rte_exit(EXIT_FAILURE, "Error starting eventdev"); 504 } 505 506 static void 507 generic_opt_check(void) 508 { 509 int i; 510 int ret; 511 uint32_t cap = 0; 512 uint8_t rx_needed = 0; 513 uint8_t sched_needed = 0; 514 struct rte_event_dev_info eventdev_info; 515 516 memset(&eventdev_info, 0, sizeof(struct rte_event_dev_info)); 517 rte_event_dev_info_get(0, &eventdev_info); 518 519 if (cdata.all_type_queues && !(eventdev_info.event_dev_cap & 520 RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES)) 521 rte_exit(EXIT_FAILURE, 522 "Event dev doesn't support all type queues\n"); 523 sched_needed = !(eventdev_info.event_dev_cap & 524 RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED); 525 526 RTE_ETH_FOREACH_DEV(i) { 527 ret = rte_event_eth_rx_adapter_caps_get(0, i, &cap); 528 if (ret) 529 rte_exit(EXIT_FAILURE, 530 "failed to get event rx adapter capabilities"); 531 rx_needed |= 532 !(cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT); 533 } 534 535 if (cdata.worker_lcore_mask == 0 || 536 (rx_needed && cdata.rx_lcore_mask == 0) || 537 (cdata.tx_lcore_mask == 0) || 538 (sched_needed && cdata.sched_lcore_mask == 0)) { 539 printf("Core part of pipeline was not assigned any cores. " 540 "This will stall the pipeline, please check core masks " 541 "(use -h for details on setting core masks):\n" 542 "\trx: %"PRIu64"\n\ttx: %"PRIu64"\n\tsched: %"PRIu64 543 "\n\tworkers: %"PRIu64"\n", 544 cdata.rx_lcore_mask, cdata.tx_lcore_mask, 545 cdata.sched_lcore_mask, 546 cdata.worker_lcore_mask); 547 rte_exit(-1, "Fix core masks\n"); 548 } 549 550 if (!sched_needed) 551 memset(fdata->sched_core, 0, 552 sizeof(unsigned int) * MAX_NUM_CORE); 553 if (!rx_needed) 554 memset(fdata->rx_core, 0, 555 sizeof(unsigned int) * MAX_NUM_CORE); 556 } 557 558 void 559 set_worker_generic_setup_data(struct setup_data *caps, bool burst) 560 { 561 if (burst) { 562 caps->worker = worker_generic_burst; 563 } else { 564 caps->worker = worker_generic; 565 } 566 567 caps->adptr_setup = init_adapters; 568 caps->scheduler = schedule_devices; 569 caps->evdev_setup = setup_eventdev_generic; 570 caps->check_opt = generic_opt_check; 571 } 572