1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation 3 */ 4 5 #include <stdint.h> 6 #include <sys/queue.h> 7 #include <stdlib.h> 8 #include <string.h> 9 #include <stdio.h> 10 #include <assert.h> 11 #include <errno.h> 12 #include <signal.h> 13 #include <stdarg.h> 14 #include <inttypes.h> 15 #include <getopt.h> 16 17 #include <rte_common.h> 18 #include <rte_log.h> 19 #include <rte_memory.h> 20 #include <rte_memcpy.h> 21 #include <rte_eal.h> 22 #include <rte_launch.h> 23 #include <rte_atomic.h> 24 #include <rte_cycles.h> 25 #include <rte_prefetch.h> 26 #include <rte_lcore.h> 27 #include <rte_per_lcore.h> 28 #include <rte_branch_prediction.h> 29 #include <rte_interrupts.h> 30 #include <rte_random.h> 31 #include <rte_debug.h> 32 #include <rte_ether.h> 33 #include <rte_ethdev.h> 34 #include <rte_mempool.h> 35 #include <rte_mbuf.h> 36 37 #define MAX_QUEUES 1024 38 /* 39 * 1024 queues require to meet the needs of a large number of vmdq_pools. 40 * (RX/TX_queue_nb * RX/TX_ring_descriptors_nb) per port. 41 */ 42 #define NUM_MBUFS_PER_PORT (MAX_QUEUES * RTE_MAX(RTE_TEST_RX_DESC_DEFAULT, \ 43 RTE_TEST_TX_DESC_DEFAULT)) 44 #define MBUF_CACHE_SIZE 64 45 46 #define MAX_PKT_BURST 32 47 48 /* 49 * Configurable number of RX/TX ring descriptors 50 */ 51 #define RTE_TEST_RX_DESC_DEFAULT 1024 52 #define RTE_TEST_TX_DESC_DEFAULT 1024 53 54 #define INVALID_PORT_ID 0xFF 55 56 /* mask of enabled ports */ 57 static uint32_t enabled_port_mask; 58 59 /* number of pools (if user does not specify any, 8 by default */ 60 static uint32_t num_queues = 8; 61 static uint32_t num_pools = 8; 62 static uint8_t rss_enable; 63 64 /* empty vmdq configuration structure. Filled in programatically */ 65 static const struct rte_eth_conf vmdq_conf_default = { 66 .rxmode = { 67 .mq_mode = ETH_MQ_RX_VMDQ_ONLY, 68 .split_hdr_size = 0, 69 }, 70 71 .txmode = { 72 .mq_mode = ETH_MQ_TX_NONE, 73 }, 74 .rx_adv_conf = { 75 /* 76 * should be overridden separately in code with 77 * appropriate values 78 */ 79 .vmdq_rx_conf = { 80 .nb_queue_pools = ETH_8_POOLS, 81 .enable_default_pool = 0, 82 .default_pool = 0, 83 .nb_pool_maps = 0, 84 .pool_map = {{0, 0},}, 85 }, 86 }, 87 }; 88 89 static unsigned lcore_ids[RTE_MAX_LCORE]; 90 static uint16_t ports[RTE_MAX_ETHPORTS]; 91 static unsigned num_ports; /**< The number of ports specified in command line */ 92 93 /* array used for printing out statistics */ 94 volatile unsigned long rxPackets[MAX_QUEUES] = {0}; 95 96 const uint16_t vlan_tags[] = { 97 0, 1, 2, 3, 4, 5, 6, 7, 98 8, 9, 10, 11, 12, 13, 14, 15, 99 16, 17, 18, 19, 20, 21, 22, 23, 100 24, 25, 26, 27, 28, 29, 30, 31, 101 32, 33, 34, 35, 36, 37, 38, 39, 102 40, 41, 42, 43, 44, 45, 46, 47, 103 48, 49, 50, 51, 52, 53, 54, 55, 104 56, 57, 58, 59, 60, 61, 62, 63, 105 }; 106 const uint16_t num_vlans = RTE_DIM(vlan_tags); 107 static uint16_t num_pf_queues, num_vmdq_queues; 108 static uint16_t vmdq_pool_base, vmdq_queue_base; 109 /* pool mac addr template, pool mac addr is like: 52 54 00 12 port# pool# */ 110 static struct rte_ether_addr pool_addr_template = { 111 .addr_bytes = {0x52, 0x54, 0x00, 0x12, 0x00, 0x00} 112 }; 113 114 /* ethernet addresses of ports */ 115 static struct rte_ether_addr vmdq_ports_eth_addr[RTE_MAX_ETHPORTS]; 116 117 #define MAX_QUEUE_NUM_10G 128 118 #define MAX_QUEUE_NUM_1G 8 119 #define MAX_POOL_MAP_NUM_10G 64 120 #define MAX_POOL_MAP_NUM_1G 32 121 #define MAX_POOL_NUM_10G 64 122 #define MAX_POOL_NUM_1G 8 123 /* 124 * Builds up the correct configuration for vmdq based on the vlan tags array 125 * given above, and determine the queue number and pool map number according to 126 * valid pool number 127 */ 128 static inline int 129 get_eth_conf(struct rte_eth_conf *eth_conf, uint32_t num_pools) 130 { 131 struct rte_eth_vmdq_rx_conf conf; 132 unsigned i; 133 134 conf.nb_queue_pools = (enum rte_eth_nb_pools)num_pools; 135 conf.nb_pool_maps = num_pools; 136 conf.enable_default_pool = 0; 137 conf.default_pool = 0; /* set explicit value, even if not used */ 138 139 for (i = 0; i < conf.nb_pool_maps; i++) { 140 conf.pool_map[i].vlan_id = vlan_tags[i]; 141 conf.pool_map[i].pools = (1UL << (i % num_pools)); 142 } 143 144 (void)(rte_memcpy(eth_conf, &vmdq_conf_default, sizeof(*eth_conf))); 145 (void)(rte_memcpy(ð_conf->rx_adv_conf.vmdq_rx_conf, &conf, 146 sizeof(eth_conf->rx_adv_conf.vmdq_rx_conf))); 147 if (rss_enable) { 148 eth_conf->rxmode.mq_mode = ETH_MQ_RX_VMDQ_RSS; 149 eth_conf->rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | 150 ETH_RSS_UDP | 151 ETH_RSS_TCP | 152 ETH_RSS_SCTP; 153 } 154 return 0; 155 } 156 157 /* 158 * Initialises a given port using global settings and with the rx buffers 159 * coming from the mbuf_pool passed as parameter 160 */ 161 static inline int 162 port_init(uint16_t port, struct rte_mempool *mbuf_pool) 163 { 164 struct rte_eth_dev_info dev_info; 165 struct rte_eth_rxconf *rxconf; 166 struct rte_eth_txconf *txconf; 167 struct rte_eth_conf port_conf; 168 uint16_t rxRings, txRings; 169 uint16_t rxRingSize = RTE_TEST_RX_DESC_DEFAULT; 170 uint16_t txRingSize = RTE_TEST_TX_DESC_DEFAULT; 171 int retval; 172 uint16_t q; 173 uint16_t queues_per_pool; 174 uint32_t max_nb_pools; 175 uint64_t rss_hf_tmp; 176 177 /* 178 * The max pool number from dev_info will be used to validate the pool 179 * number specified in cmd line 180 */ 181 retval = rte_eth_dev_info_get(port, &dev_info); 182 if (retval != 0) { 183 printf("Error during getting device (port %u) info: %s\n", 184 port, strerror(-retval)); 185 return retval; 186 } 187 188 max_nb_pools = (uint32_t)dev_info.max_vmdq_pools; 189 /* 190 * We allow to process part of VMDQ pools specified by num_pools in 191 * command line. 192 */ 193 if (num_pools > max_nb_pools) { 194 printf("num_pools %d >max_nb_pools %d\n", 195 num_pools, max_nb_pools); 196 return -1; 197 } 198 retval = get_eth_conf(&port_conf, max_nb_pools); 199 if (retval < 0) 200 return retval; 201 202 /* 203 * NIC queues are divided into pf queues and vmdq queues. 204 */ 205 /* There is assumption here all ports have the same configuration! */ 206 num_pf_queues = dev_info.max_rx_queues - dev_info.vmdq_queue_num; 207 queues_per_pool = dev_info.vmdq_queue_num / dev_info.max_vmdq_pools; 208 num_vmdq_queues = num_pools * queues_per_pool; 209 num_queues = num_pf_queues + num_vmdq_queues; 210 vmdq_queue_base = dev_info.vmdq_queue_base; 211 vmdq_pool_base = dev_info.vmdq_pool_base; 212 213 printf("pf queue num: %u, configured vmdq pool num: %u," 214 " each vmdq pool has %u queues\n", 215 num_pf_queues, num_pools, queues_per_pool); 216 printf("vmdq queue base: %d pool base %d\n", 217 vmdq_queue_base, vmdq_pool_base); 218 if (!rte_eth_dev_is_valid_port(port)) 219 return -1; 220 221 rss_hf_tmp = port_conf.rx_adv_conf.rss_conf.rss_hf; 222 port_conf.rx_adv_conf.rss_conf.rss_hf &= 223 dev_info.flow_type_rss_offloads; 224 if (port_conf.rx_adv_conf.rss_conf.rss_hf != rss_hf_tmp) { 225 printf("Port %u modified RSS hash function based on hardware support," 226 "requested:%#"PRIx64" configured:%#"PRIx64"\n", 227 port, 228 rss_hf_tmp, 229 port_conf.rx_adv_conf.rss_conf.rss_hf); 230 } 231 232 /* 233 * Though in this example, we only receive packets from the first queue 234 * of each pool and send packets through first rte_lcore_count() tx 235 * queues of vmdq queues, all queues including pf queues are setup. 236 * This is because VMDQ queues doesn't always start from zero, and the 237 * PMD layer doesn't support selectively initialising part of rx/tx 238 * queues. 239 */ 240 rxRings = (uint16_t)dev_info.max_rx_queues; 241 txRings = (uint16_t)dev_info.max_tx_queues; 242 243 retval = rte_eth_dev_info_get(port, &dev_info); 244 if (retval != 0) { 245 printf("Error during getting device (port %u) info: %s\n", 246 port, strerror(-retval)); 247 return retval; 248 } 249 250 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 251 port_conf.txmode.offloads |= 252 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 253 retval = rte_eth_dev_configure(port, rxRings, txRings, &port_conf); 254 if (retval != 0) 255 return retval; 256 257 retval = rte_eth_dev_adjust_nb_rx_tx_desc(port, &rxRingSize, 258 &txRingSize); 259 if (retval != 0) 260 return retval; 261 if (RTE_MAX(rxRingSize, txRingSize) > RTE_MAX(RTE_TEST_RX_DESC_DEFAULT, 262 RTE_TEST_TX_DESC_DEFAULT)) { 263 printf("Mbuf pool has an insufficient size for port %u.\n", 264 port); 265 return -1; 266 } 267 268 rxconf = &dev_info.default_rxconf; 269 rxconf->rx_drop_en = 1; 270 txconf = &dev_info.default_txconf; 271 txconf->offloads = port_conf.txmode.offloads; 272 for (q = 0; q < rxRings; q++) { 273 retval = rte_eth_rx_queue_setup(port, q, rxRingSize, 274 rte_eth_dev_socket_id(port), 275 rxconf, 276 mbuf_pool); 277 if (retval < 0) { 278 printf("initialise rx queue %d failed\n", q); 279 return retval; 280 } 281 } 282 283 for (q = 0; q < txRings; q++) { 284 retval = rte_eth_tx_queue_setup(port, q, txRingSize, 285 rte_eth_dev_socket_id(port), 286 txconf); 287 if (retval < 0) { 288 printf("initialise tx queue %d failed\n", q); 289 return retval; 290 } 291 } 292 293 retval = rte_eth_dev_start(port); 294 if (retval < 0) { 295 printf("port %d start failed\n", port); 296 return retval; 297 } 298 299 retval = rte_eth_macaddr_get(port, &vmdq_ports_eth_addr[port]); 300 if (retval < 0) { 301 printf("port %d MAC address get failed: %s\n", port, 302 rte_strerror(-retval)); 303 return retval; 304 } 305 printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8 306 " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n", 307 (unsigned)port, 308 vmdq_ports_eth_addr[port].addr_bytes[0], 309 vmdq_ports_eth_addr[port].addr_bytes[1], 310 vmdq_ports_eth_addr[port].addr_bytes[2], 311 vmdq_ports_eth_addr[port].addr_bytes[3], 312 vmdq_ports_eth_addr[port].addr_bytes[4], 313 vmdq_ports_eth_addr[port].addr_bytes[5]); 314 315 /* 316 * Set mac for each pool. 317 * There is no default mac for the pools in i40. 318 * Removes this after i40e fixes this issue. 319 */ 320 for (q = 0; q < num_pools; q++) { 321 struct rte_ether_addr mac; 322 mac = pool_addr_template; 323 mac.addr_bytes[4] = port; 324 mac.addr_bytes[5] = q; 325 printf("Port %u vmdq pool %u set mac %02x:%02x:%02x:%02x:%02x:%02x\n", 326 port, q, 327 mac.addr_bytes[0], mac.addr_bytes[1], 328 mac.addr_bytes[2], mac.addr_bytes[3], 329 mac.addr_bytes[4], mac.addr_bytes[5]); 330 retval = rte_eth_dev_mac_addr_add(port, &mac, 331 q + vmdq_pool_base); 332 if (retval) { 333 printf("mac addr add failed at pool %d\n", q); 334 return retval; 335 } 336 } 337 338 return 0; 339 } 340 341 /* Check num_pools parameter and set it if OK*/ 342 static int 343 vmdq_parse_num_pools(const char *q_arg) 344 { 345 char *end = NULL; 346 int n; 347 348 /* parse number string */ 349 n = strtol(q_arg, &end, 10); 350 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 351 return -1; 352 353 if (num_pools > num_vlans) { 354 printf("num_pools %d > num_vlans %d\n", num_pools, num_vlans); 355 return -1; 356 } 357 358 num_pools = n; 359 360 return 0; 361 } 362 363 364 static int 365 parse_portmask(const char *portmask) 366 { 367 char *end = NULL; 368 unsigned long pm; 369 370 /* parse hexadecimal string */ 371 pm = strtoul(portmask, &end, 16); 372 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 373 return -1; 374 375 if (pm == 0) 376 return -1; 377 378 return pm; 379 } 380 381 /* Display usage */ 382 static void 383 vmdq_usage(const char *prgname) 384 { 385 printf("%s [EAL options] -- -p PORTMASK]\n" 386 " --nb-pools NP: number of pools\n" 387 " --enable-rss: enable RSS (disabled by default)\n", 388 prgname); 389 } 390 391 /* Parse the argument (num_pools) given in the command line of the application */ 392 static int 393 vmdq_parse_args(int argc, char **argv) 394 { 395 int opt; 396 int option_index; 397 unsigned i; 398 const char *prgname = argv[0]; 399 static struct option long_option[] = { 400 {"nb-pools", required_argument, NULL, 0}, 401 {"enable-rss", 0, NULL, 0}, 402 {NULL, 0, 0, 0} 403 }; 404 405 /* Parse command line */ 406 while ((opt = getopt_long(argc, argv, "p:", long_option, 407 &option_index)) != EOF) { 408 switch (opt) { 409 /* portmask */ 410 case 'p': 411 enabled_port_mask = parse_portmask(optarg); 412 if (enabled_port_mask == 0) { 413 printf("invalid portmask\n"); 414 vmdq_usage(prgname); 415 return -1; 416 } 417 break; 418 case 0: 419 if (!strcmp(long_option[option_index].name, 420 "nb-pools")) { 421 if (vmdq_parse_num_pools(optarg) == -1) { 422 printf("invalid number of pools\n"); 423 vmdq_usage(prgname); 424 return -1; 425 } 426 } 427 428 if (!strcmp(long_option[option_index].name, 429 "enable-rss")) 430 rss_enable = 1; 431 break; 432 433 default: 434 vmdq_usage(prgname); 435 return -1; 436 } 437 } 438 439 for (i = 0; i < RTE_MAX_ETHPORTS; i++) { 440 if (enabled_port_mask & (1 << i)) 441 ports[num_ports++] = (uint8_t)i; 442 } 443 444 if (num_ports < 2 || num_ports % 2) { 445 printf("Current enabled port number is %u," 446 "but it should be even and at least 2\n", num_ports); 447 return -1; 448 } 449 450 return 0; 451 } 452 453 static void 454 update_mac_address(struct rte_mbuf *m, unsigned dst_port) 455 { 456 struct rte_ether_hdr *eth; 457 void *tmp; 458 459 eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); 460 461 /* 02:00:00:00:00:xx */ 462 tmp = ð->d_addr.addr_bytes[0]; 463 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40); 464 465 /* src addr */ 466 rte_ether_addr_copy(&vmdq_ports_eth_addr[dst_port], ð->s_addr); 467 } 468 469 /* When we receive a HUP signal, print out our stats */ 470 static void 471 sighup_handler(int signum) 472 { 473 unsigned int q = vmdq_queue_base; 474 for (; q < num_queues; q++) { 475 if ((q - vmdq_queue_base) % (num_vmdq_queues / num_pools) == 0) 476 printf("\nPool %u: ", (q - vmdq_queue_base) / 477 (num_vmdq_queues / num_pools)); 478 printf("%lu ", rxPackets[q]); 479 } 480 printf("\nFinished handling signal %d\n", signum); 481 } 482 483 /* 484 * Main thread that does the work, reading from INPUT_PORT 485 * and writing to OUTPUT_PORT 486 */ 487 static int 488 lcore_main(__rte_unused void *dummy) 489 { 490 const uint16_t lcore_id = (uint16_t)rte_lcore_id(); 491 const uint16_t num_cores = (uint16_t)rte_lcore_count(); 492 uint16_t core_id = 0; 493 uint16_t startQueue, endQueue; 494 uint16_t q, i, p; 495 const uint16_t remainder = (uint16_t)(num_vmdq_queues % num_cores); 496 497 for (i = 0; i < num_cores; i++) 498 if (lcore_ids[i] == lcore_id) { 499 core_id = i; 500 break; 501 } 502 503 if (remainder != 0) { 504 if (core_id < remainder) { 505 startQueue = (uint16_t)(core_id * 506 (num_vmdq_queues / num_cores + 1)); 507 endQueue = (uint16_t)(startQueue + 508 (num_vmdq_queues / num_cores) + 1); 509 } else { 510 startQueue = (uint16_t)(core_id * 511 (num_vmdq_queues / num_cores) + 512 remainder); 513 endQueue = (uint16_t)(startQueue + 514 (num_vmdq_queues / num_cores)); 515 } 516 } else { 517 startQueue = (uint16_t)(core_id * 518 (num_vmdq_queues / num_cores)); 519 endQueue = (uint16_t)(startQueue + 520 (num_vmdq_queues / num_cores)); 521 } 522 523 /* vmdq queue idx doesn't always start from zero.*/ 524 startQueue += vmdq_queue_base; 525 endQueue += vmdq_queue_base; 526 printf("core %u(lcore %u) reading queues %i-%i\n", (unsigned)core_id, 527 (unsigned)lcore_id, startQueue, endQueue - 1); 528 529 if (startQueue == endQueue) { 530 printf("lcore %u has nothing to do\n", lcore_id); 531 return 0; 532 } 533 534 for (;;) { 535 struct rte_mbuf *buf[MAX_PKT_BURST]; 536 const uint16_t buf_size = RTE_DIM(buf); 537 538 for (p = 0; p < num_ports; p++) { 539 const uint8_t sport = ports[p]; 540 /* 0 <-> 1, 2 <-> 3 etc */ 541 const uint8_t dport = ports[p ^ 1]; 542 if ((sport == INVALID_PORT_ID) || (dport == INVALID_PORT_ID)) 543 continue; 544 545 for (q = startQueue; q < endQueue; q++) { 546 const uint16_t rxCount = rte_eth_rx_burst(sport, 547 q, buf, buf_size); 548 549 if (unlikely(rxCount == 0)) 550 continue; 551 552 rxPackets[q] += rxCount; 553 554 for (i = 0; i < rxCount; i++) 555 update_mac_address(buf[i], dport); 556 557 const uint16_t txCount = rte_eth_tx_burst(dport, 558 vmdq_queue_base + core_id, 559 buf, 560 rxCount); 561 562 if (txCount != rxCount) { 563 for (i = txCount; i < rxCount; i++) 564 rte_pktmbuf_free(buf[i]); 565 } 566 } 567 } 568 } 569 } 570 571 /* 572 * Update the global var NUM_PORTS and array PORTS according to system ports number 573 * and return valid ports number 574 */ 575 static unsigned check_ports_num(unsigned nb_ports) 576 { 577 unsigned valid_num_ports = num_ports; 578 unsigned portid; 579 580 if (num_ports > nb_ports) { 581 printf("\nSpecified port number(%u) exceeds total system port number(%u)\n", 582 num_ports, nb_ports); 583 num_ports = nb_ports; 584 } 585 586 for (portid = 0; portid < num_ports; portid++) { 587 if (!rte_eth_dev_is_valid_port(ports[portid])) { 588 printf("\nSpecified port ID(%u) is not valid\n", 589 ports[portid]); 590 ports[portid] = INVALID_PORT_ID; 591 valid_num_ports--; 592 } 593 } 594 return valid_num_ports; 595 } 596 597 /* Main function, does initialisation and calls the per-lcore functions */ 598 int 599 main(int argc, char *argv[]) 600 { 601 struct rte_mempool *mbuf_pool; 602 unsigned lcore_id, core_id = 0; 603 int ret; 604 unsigned nb_ports, valid_num_ports; 605 uint16_t portid; 606 607 signal(SIGHUP, sighup_handler); 608 609 /* init EAL */ 610 ret = rte_eal_init(argc, argv); 611 if (ret < 0) 612 rte_exit(EXIT_FAILURE, "Error with EAL initialization\n"); 613 argc -= ret; 614 argv += ret; 615 616 /* parse app arguments */ 617 ret = vmdq_parse_args(argc, argv); 618 if (ret < 0) 619 rte_exit(EXIT_FAILURE, "Invalid VMDQ argument\n"); 620 621 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) 622 if (rte_lcore_is_enabled(lcore_id)) 623 lcore_ids[core_id++] = lcore_id; 624 625 if (rte_lcore_count() > RTE_MAX_LCORE) 626 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 627 628 nb_ports = rte_eth_dev_count_avail(); 629 630 /* 631 * Update the global var NUM_PORTS and global array PORTS 632 * and get value of var VALID_NUM_PORTS according to system ports number 633 */ 634 valid_num_ports = check_ports_num(nb_ports); 635 636 if (valid_num_ports < 2 || valid_num_ports % 2) { 637 printf("Current valid ports number is %u\n", valid_num_ports); 638 rte_exit(EXIT_FAILURE, "Error with valid ports number is not even or less than 2\n"); 639 } 640 641 mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", 642 NUM_MBUFS_PER_PORT * nb_ports, MBUF_CACHE_SIZE, 643 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); 644 if (mbuf_pool == NULL) 645 rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n"); 646 647 /* initialize all ports */ 648 RTE_ETH_FOREACH_DEV(portid) { 649 /* skip ports that are not enabled */ 650 if ((enabled_port_mask & (1 << portid)) == 0) { 651 printf("\nSkipping disabled port %d\n", portid); 652 continue; 653 } 654 if (port_init(portid, mbuf_pool) != 0) 655 rte_exit(EXIT_FAILURE, "Cannot initialize network ports\n"); 656 } 657 658 /* call lcore_main() on every lcore */ 659 rte_eal_mp_remote_launch(lcore_main, NULL, CALL_MASTER); 660 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 661 if (rte_eal_wait_lcore(lcore_id) < 0) 662 return -1; 663 } 664 665 return 0; 666 } 667