ceph/src/seastar/dpdk/examples/vmdq/main.c

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