examples/l2fwd-keepalive/main.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2016 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <stdint.h>
   9 #include <inttypes.h>
  10 #include <sys/types.h>
  11 #include <sys/queue.h>
  12 #include <netinet/in.h>
  13 #include <setjmp.h>
  14 #include <stdarg.h>
  15 #include <ctype.h>
  16 #include <errno.h>
  17 #include <getopt.h>
  18 #include <signal.h>
  19
  20 #include <rte_common.h>
  21 #include <rte_log.h>
  22 #include <rte_malloc.h>
  23 #include <rte_memory.h>
  24 #include <rte_memcpy.h>
  25 #include <rte_eal.h>
  26 #include <rte_launch.h>
  27 #include <rte_atomic.h>
  28 #include <rte_cycles.h>
  29 #include <rte_prefetch.h>
  30 #include <rte_lcore.h>
  31 #include <rte_per_lcore.h>
  32 #include <rte_branch_prediction.h>
  33 #include <rte_interrupts.h>
  34 #include <rte_random.h>
  35 #include <rte_debug.h>
  36 #include <rte_ether.h>
  37 #include <rte_ethdev.h>
  38 #include <rte_mempool.h>
  39 #include <rte_mbuf.h>
  40 #include <rte_timer.h>
  41 #include <rte_keepalive.h>
  42
  43 #include "shm.h"
  44
  45 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
  46
  47 #define NB_MBUF   8192
  48
  49 #define MAX_PKT_BURST 32
  50 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
  51
  52 /*
  53  * Configurable number of RX/TX ring descriptors
  54  */
  55 #define RTE_TEST_RX_DESC_DEFAULT 128
  56 #define RTE_TEST_TX_DESC_DEFAULT 512
  57 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  58 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  59
  60 /* ethernet addresses of ports */
  61 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
  62
  63 /* mask of enabled ports */
  64 static uint32_t l2fwd_enabled_port_mask;
  65
  66 /* list of enabled ports */
  67 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
  68
  69 static unsigned int l2fwd_rx_queue_per_lcore = 1;
  70
  71 #define MAX_RX_QUEUE_PER_LCORE 16
  72 #define MAX_TX_QUEUE_PER_PORT 16
  73 struct lcore_queue_conf {
  74         unsigned n_rx_port;
  75         unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
  76 } __rte_cache_aligned;
  77 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
  78
  79 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
  80
  81 static const struct rte_eth_conf port_conf = {
  82         .rxmode = {
  83                 .split_hdr_size = 0,
  84                 .header_split   = 0, /**< Header Split disabled */
  85                 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
  86                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
  87                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
  88                 .hw_strip_crc   = 1, /**< CRC stripped by hardware */
  89         },
  90         .txmode = {
  91                 .mq_mode = ETH_MQ_TX_NONE,
  92         },
  93 };
  94
  95 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
  96
  97 /* Per-port statistics struct */
  98 struct l2fwd_port_statistics {
  99         uint64_t tx;
 100         uint64_t rx;
 101         uint64_t dropped;
 102 } __rte_cache_aligned;
 103 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 104
 105 /* A tsc-based timer responsible for triggering statistics printout */
 106 #define TIMER_MILLISECOND 1
 107 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 108 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
 109 static int64_t check_period = 5; /* default check cycle is 5ms */
 110
 111 /* Keepalive structure */
 112 struct rte_keepalive *rte_global_keepalive_info;
 113
 114 /* Termination signalling */
 115 static int terminate_signal_received;
 116
 117 /* Termination signal handler */
 118 static void handle_sigterm(__rte_unused int value)
 119 {
 120         terminate_signal_received = 1;
 121 }
 122
 123 /* Print out statistics on packets dropped */
 124 static void
 125 print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 126         __attribute__((unused)) void *ptr_data)
 127 {
 128         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 129         uint16_t portid;
 130
 131         total_packets_dropped = 0;
 132         total_packets_tx = 0;
 133         total_packets_rx = 0;
 134
 135         const char clr[] = { 27, '[', '2', 'J', '\0' };
 136         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 137
 138                 /* Clear screen and move to top left */
 139         printf("%s%s", clr, topLeft);
 140
 141         printf("\nPort statistics ====================================");
 142
 143         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 144                 /* skip disabled ports */
 145                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 146                         continue;
 147                 printf("\nStatistics for port %u ------------------------------"
 148                            "\nPackets sent: %24"PRIu64
 149                            "\nPackets received: %20"PRIu64
 150                            "\nPackets dropped: %21"PRIu64,
 151                            portid,
 152                            port_statistics[portid].tx,
 153                            port_statistics[portid].rx,
 154                            port_statistics[portid].dropped);
 155
 156                 total_packets_dropped += port_statistics[portid].dropped;
 157                 total_packets_tx += port_statistics[portid].tx;
 158                 total_packets_rx += port_statistics[portid].rx;
 159         }
 160         printf("\nAggregate statistics ==============================="
 161                    "\nTotal packets sent: %18"PRIu64
 162                    "\nTotal packets received: %14"PRIu64
 163                    "\nTotal packets dropped: %15"PRIu64,
 164                    total_packets_tx,
 165                    total_packets_rx,
 166                    total_packets_dropped);
 167         printf("\n====================================================\n");
 168 }
 169
 170 static void
 171 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 172 {
 173         struct ether_hdr *eth;
 174         void *tmp;
 175         int sent;
 176         unsigned dst_port;
 177         struct rte_eth_dev_tx_buffer *buffer;
 178
 179         dst_port = l2fwd_dst_ports[portid];
 180         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 181
 182         /* 02:00:00:00:00:xx */
 183         tmp = &eth->d_addr.addr_bytes[0];
 184         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 185
 186         /* src addr */
 187         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 188
 189         buffer = tx_buffer[dst_port];
 190         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 191         if (sent)
 192                 port_statistics[dst_port].tx += sent;
 193 }
 194
 195 /* main processing loop */
 196 static void
 197 l2fwd_main_loop(void)
 198 {
 199         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 200         struct rte_mbuf *m;
 201         int sent;
 202         unsigned lcore_id;
 203         uint64_t prev_tsc, diff_tsc, cur_tsc;
 204         unsigned i, j, portid, nb_rx;
 205         struct lcore_queue_conf *qconf;
 206         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 207                 / US_PER_S * BURST_TX_DRAIN_US;
 208         struct rte_eth_dev_tx_buffer *buffer;
 209
 210         prev_tsc = 0;
 211
 212         lcore_id = rte_lcore_id();
 213         qconf = &lcore_queue_conf[lcore_id];
 214
 215         if (qconf->n_rx_port == 0) {
 216                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 217                 return;
 218         }
 219
 220         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 221
 222         for (i = 0; i < qconf->n_rx_port; i++) {
 223
 224                 portid = qconf->rx_port_list[i];
 225                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 226                         portid);
 227         }
 228
 229         uint64_t tsc_initial = rte_rdtsc();
 230         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 231
 232         while (!terminate_signal_received) {
 233                 /* Keepalive heartbeat */
 234                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 235
 236                 cur_tsc = rte_rdtsc();
 237
 238                 /*
 239                  * Die randomly within 7 secs for demo purposes if
 240                  * keepalive enabled
 241                  */
 242                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 243                         break;
 244
 245                 /*
 246                  * TX burst queue drain
 247                  */
 248                 diff_tsc = cur_tsc - prev_tsc;
 249                 if (unlikely(diff_tsc > drain_tsc)) {
 250
 251                         for (i = 0; i < qconf->n_rx_port; i++) {
 252
 253                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 254                                 buffer = tx_buffer[portid];
 255
 256                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 257                                 if (sent)
 258                                         port_statistics[portid].tx += sent;
 259
 260                         }
 261
 262                         prev_tsc = cur_tsc;
 263                 }
 264
 265                 /*
 266                  * Read packet from RX queues
 267                  */
 268                 for (i = 0; i < qconf->n_rx_port; i++) {
 269
 270                         portid = qconf->rx_port_list[i];
 271                         nb_rx = rte_eth_rx_burst(portid, 0,
 272                                                  pkts_burst, MAX_PKT_BURST);
 273
 274                         port_statistics[portid].rx += nb_rx;
 275
 276                         for (j = 0; j < nb_rx; j++) {
 277                                 m = pkts_burst[j];
 278                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 279                                 l2fwd_simple_forward(m, portid);
 280                         }
 281                 }
 282         }
 283 }
 284
 285 static int
 286 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 287 {
 288         l2fwd_main_loop();
 289         return 0;
 290 }
 291
 292 /* display usage */
 293 static void
 294 l2fwd_usage(const char *prgname)
 295 {
 296         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 297                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 298                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 299                "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
 300                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 301                prgname);
 302 }
 303
 304 static int
 305 l2fwd_parse_portmask(const char *portmask)
 306 {
 307         char *end = NULL;
 308         unsigned long pm;
 309
 310         /* parse hexadecimal string */
 311         pm = strtoul(portmask, &end, 16);
 312         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 313                 return -1;
 314
 315         if (pm == 0)
 316                 return -1;
 317
 318         return pm;
 319 }
 320
 321 static unsigned int
 322 l2fwd_parse_nqueue(const char *q_arg)
 323 {
 324         char *end = NULL;
 325         unsigned long n;
 326
 327         /* parse hexadecimal string */
 328         n = strtoul(q_arg, &end, 10);
 329         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 330                 return 0;
 331         if (n == 0)
 332                 return 0;
 333         if (n >= MAX_RX_QUEUE_PER_LCORE)
 334                 return 0;
 335
 336         return n;
 337 }
 338
 339 static int
 340 l2fwd_parse_timer_period(const char *q_arg)
 341 {
 342         char *end = NULL;
 343         int n;
 344
 345         /* parse number string */
 346         n = strtol(q_arg, &end, 10);
 347         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 348                 return -1;
 349         if (n >= MAX_TIMER_PERIOD)
 350                 return -1;
 351
 352         return n;
 353 }
 354
 355 static int
 356 l2fwd_parse_check_period(const char *q_arg)
 357 {
 358         char *end = NULL;
 359         int n;
 360
 361         /* parse number string */
 362         n = strtol(q_arg, &end, 10);
 363         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 364                 return -1;
 365         if (n >= MAX_TIMER_PERIOD)
 366                 return -1;
 367
 368         return n;
 369 }
 370
 371 /* Parse the argument given in the command line of the application */
 372 static int
 373 l2fwd_parse_args(int argc, char **argv)
 374 {
 375         int opt, ret;
 376         char **argvopt;
 377         int option_index;
 378         char *prgname = argv[0];
 379         static struct option lgopts[] = {
 380                 {NULL, 0, 0, 0}
 381         };
 382
 383         argvopt = argv;
 384
 385         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 386                                   lgopts, &option_index)) != EOF) {
 387
 388                 switch (opt) {
 389                 /* portmask */
 390                 case 'p':
 391                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 392                         if (l2fwd_enabled_port_mask == 0) {
 393                                 printf("invalid portmask\n");
 394                                 l2fwd_usage(prgname);
 395                                 return -1;
 396                         }
 397                         break;
 398
 399                 /* nqueue */
 400                 case 'q':
 401                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 402                         if (l2fwd_rx_queue_per_lcore == 0) {
 403                                 printf("invalid queue number\n");
 404                                 l2fwd_usage(prgname);
 405                                 return -1;
 406                         }
 407                         break;
 408
 409                 /* timer period */
 410                 case 'T':
 411                         timer_period = l2fwd_parse_timer_period(optarg)
 412                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 413                         if (timer_period < 0) {
 414                                 printf("invalid timer period\n");
 415                                 l2fwd_usage(prgname);
 416                                 return -1;
 417                         }
 418                         break;
 419
 420                 /* Check period */
 421                 case 'K':
 422                         check_period = l2fwd_parse_check_period(optarg);
 423                         if (check_period < 0) {
 424                                 printf("invalid check period\n");
 425                                 l2fwd_usage(prgname);
 426                                 return -1;
 427                         }
 428                         break;
 429
 430                 /* long options */
 431                 case 0:
 432                         l2fwd_usage(prgname);
 433                         return -1;
 434
 435                 default:
 436                         l2fwd_usage(prgname);
 437                         return -1;
 438                 }
 439         }
 440
 441         if (optind >= 0)
 442                 argv[optind-1] = prgname;
 443
 444         ret = optind-1;
 445         optind = 1; /* reset getopt lib */
 446         return ret;
 447 }
 448
 449 /* Check the link status of all ports in up to 9s, and print them finally */
 450 static void
 451 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
 452 {
 453 #define CHECK_INTERVAL 100 /* 100ms */
 454 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 455         uint16_t portid;
 456         uint8_t count, all_ports_up, print_flag = 0;
 457         struct rte_eth_link link;
 458
 459         printf("\nChecking link status");
 460         fflush(stdout);
 461         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 462                 all_ports_up = 1;
 463                 for (portid = 0; portid < port_num; portid++) {
 464                         if ((port_mask & (1 << portid)) == 0)
 465                                 continue;
 466                         memset(&link, 0, sizeof(link));
 467                         rte_eth_link_get_nowait(portid, &link);
 468                         /* print link status if flag set */
 469                         if (print_flag == 1) {
 470                                 if (link.link_status)
 471                                         printf(
 472                                         "Port%d Link Up. Speed %u Mbps - %s\n",
 473                                                 portid, link.link_speed,
 474                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 475                                         ("full-duplex") : ("half-duplex\n"));
 476                                 else
 477                                         printf("Port %d Link Down\n", portid);
 478                                 continue;
 479                         }
 480                         /* clear all_ports_up flag if any link down */
 481                         if (link.link_status == ETH_LINK_DOWN) {
 482                                 all_ports_up = 0;
 483                                 break;
 484                         }
 485                 }
 486                 /* after finally printing all link status, get out */
 487                 if (print_flag == 1)
 488                         break;
 489
 490                 if (all_ports_up == 0) {
 491                         printf(".");
 492                         fflush(stdout);
 493                         rte_delay_ms(CHECK_INTERVAL);
 494                 }
 495
 496                 /* set the print_flag if all ports up or timeout */
 497                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 498                         print_flag = 1;
 499                         printf("done\n");
 500                 }
 501         }
 502 }
 503
 504 static void
 505 dead_core(__rte_unused void *ptr_data, const int id_core)
 506 {
 507         if (terminate_signal_received)
 508                 return;
 509         printf("Dead core %i - restarting..\n", id_core);
 510         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 511                 rte_eal_wait_lcore(id_core);
 512                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 513         } else {
 514                 printf("..false positive!\n");
 515         }
 516 }
 517
 518 static void
 519 relay_core_state(void *ptr_data, const int id_core,
 520         const enum rte_keepalive_state core_state, uint64_t last_alive)
 521 {
 522         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 523                 id_core, core_state, last_alive);
 524 }
 525
 526 int
 527 main(int argc, char **argv)
 528 {
 529         struct lcore_queue_conf *qconf;
 530         struct rte_eth_dev_info dev_info;
 531         int ret;
 532         uint16_t nb_ports;
 533         uint16_t nb_ports_available;
 534         uint16_t portid, last_port;
 535         unsigned lcore_id, rx_lcore_id;
 536         unsigned nb_ports_in_mask = 0;
 537         struct sigaction signal_handler;
 538         struct rte_keepalive_shm *ka_shm;
 539
 540         memset(&signal_handler, 0, sizeof(signal_handler));
 541         terminate_signal_received = 0;
 542         signal_handler.sa_handler = &handle_sigterm;
 543         if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
 544                         sigaction(SIGTERM, &signal_handler, NULL) == -1)
 545                 rte_exit(EXIT_FAILURE, "SIGNAL\n");
 546
 547
 548         /* init EAL */
 549         ret = rte_eal_init(argc, argv);
 550         if (ret < 0)
 551                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 552         argc -= ret;
 553         argv += ret;
 554
 555         l2fwd_enabled_port_mask = 0;
 556
 557         /* parse application arguments (after the EAL ones) */
 558         ret = l2fwd_parse_args(argc, argv);
 559         if (ret < 0)
 560                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 561
 562         /* create the mbuf pool */
 563         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 564                 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 565         if (l2fwd_pktmbuf_pool == NULL)
 566                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 567
 568         nb_ports = rte_eth_dev_count();
 569         if (nb_ports == 0)
 570                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 571
 572         /* reset l2fwd_dst_ports */
 573         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 574                 l2fwd_dst_ports[portid] = 0;
 575         last_port = 0;
 576
 577         /*
 578          * Each logical core is assigned a dedicated TX queue on each port.
 579          */
 580         for (portid = 0; portid < nb_ports; portid++) {
 581                 /* skip ports that are not enabled */
 582                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 583                         continue;
 584
 585                 if (nb_ports_in_mask % 2) {
 586                         l2fwd_dst_ports[portid] = last_port;
 587                         l2fwd_dst_ports[last_port] = portid;
 588                 } else
 589                         last_port = portid;
 590
 591                 nb_ports_in_mask++;
 592
 593                 rte_eth_dev_info_get(portid, &dev_info);
 594         }
 595         if (nb_ports_in_mask % 2) {
 596                 printf("Notice: odd number of ports in portmask.\n");
 597                 l2fwd_dst_ports[last_port] = last_port;
 598         }
 599
 600         rx_lcore_id = 1;
 601         qconf = NULL;
 602
 603         /* Initialize the port/queue configuration of each logical core */
 604         for (portid = 0; portid < nb_ports; portid++) {
 605                 /* skip ports that are not enabled */
 606                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 607                         continue;
 608
 609                 /* get the lcore_id for this port */
 610                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 611                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 612                        l2fwd_rx_queue_per_lcore) {
 613                         rx_lcore_id++;
 614                         if (rx_lcore_id >= RTE_MAX_LCORE)
 615                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 616                 }
 617
 618                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 619                         /* Assigned a new logical core in the loop above. */
 620                         qconf = &lcore_queue_conf[rx_lcore_id];
 621
 622                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 623                 qconf->n_rx_port++;
 624                 printf("Lcore %u: RX port %u\n",
 625                         rx_lcore_id, portid);
 626         }
 627
 628         nb_ports_available = nb_ports;
 629
 630         /* Initialise each port */
 631         for (portid = 0; portid < nb_ports; portid++) {
 632                 /* skip ports that are not enabled */
 633                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 634                         printf("Skipping disabled port %u\n", portid);
 635                         nb_ports_available--;
 636                         continue;
 637                 }
 638                 /* init port */
 639                 printf("Initializing port %u... ", portid);
 640                 fflush(stdout);
 641                 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
 642                 if (ret < 0)
 643                         rte_exit(EXIT_FAILURE,
 644                                 "Cannot configure device: err=%d, port=%u\n",
 645                                 ret, portid);
 646
 647                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 648                                                        &nb_txd);
 649                 if (ret < 0)
 650                         rte_exit(EXIT_FAILURE,
 651                                 "Cannot adjust number of descriptors: err=%d, port=%u\n",
 652                                 ret, portid);
 653
 654                 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
 655
 656                 /* init one RX queue */
 657                 fflush(stdout);
 658                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 659                                              rte_eth_dev_socket_id(portid),
 660                                              NULL,
 661                                              l2fwd_pktmbuf_pool);
 662                 if (ret < 0)
 663                         rte_exit(EXIT_FAILURE,
 664                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 665                                 ret, portid);
 666
 667                 /* init one TX queue on each port */
 668                 fflush(stdout);
 669                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 670                                 rte_eth_dev_socket_id(portid),
 671                                 NULL);
 672                 if (ret < 0)
 673                         rte_exit(EXIT_FAILURE,
 674                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 675                                 ret, portid);
 676
 677                 /* Initialize TX buffers */
 678                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 679                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 680                                 rte_eth_dev_socket_id(portid));
 681                 if (tx_buffer[portid] == NULL)
 682                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 683                                                 portid);
 684
 685                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 686
 687                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 688                                 rte_eth_tx_buffer_count_callback,
 689                                 &port_statistics[portid].dropped);
 690                 if (ret < 0)
 691                         rte_exit(EXIT_FAILURE,
 692                         "Cannot set error callback for tx buffer on port %u\n",
 693                                  portid);
 694
 695                 /* Start device */
 696                 ret = rte_eth_dev_start(portid);
 697                 if (ret < 0)
 698                         rte_exit(EXIT_FAILURE,
 699                                 "rte_eth_dev_start:err=%d, port=%u\n",
 700                                   ret, portid);
 701
 702                 rte_eth_promiscuous_enable(portid);
 703
 704                 printf("Port %u, MAC address: "
 705                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 706                         portid,
 707                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 708                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 709                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 710                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 711                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 712                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 713
 714                 /* initialize port stats */
 715                 memset(&port_statistics, 0, sizeof(port_statistics));
 716         }
 717
 718         if (!nb_ports_available) {
 719                 rte_exit(EXIT_FAILURE,
 720                         "All available ports are disabled. Please set portmask.\n");
 721         }
 722
 723         check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
 724
 725         struct rte_timer hb_timer, stats_timer;
 726
 727         rte_timer_subsystem_init();
 728         rte_timer_init(&stats_timer);
 729
 730         ka_shm = NULL;
 731         if (check_period > 0) {
 732                 ka_shm = rte_keepalive_shm_create();
 733                 if (ka_shm == NULL)
 734                         rte_exit(EXIT_FAILURE,
 735                                 "rte_keepalive_shm_create() failed");
 736                 rte_global_keepalive_info =
 737                         rte_keepalive_create(&dead_core, ka_shm);
 738                 if (rte_global_keepalive_info == NULL)
 739                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 740                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 741                         relay_core_state, ka_shm);
 742                 rte_timer_init(&hb_timer);
 743                 if (rte_timer_reset(&hb_timer,
 744                                 (check_period * rte_get_timer_hz()) / 1000,
 745                                 PERIODICAL,
 746                                 rte_lcore_id(),
 747                                 (void(*)(struct rte_timer*, void*))
 748                                 &rte_keepalive_dispatch_pings,
 749                                 rte_global_keepalive_info
 750                                 ) != 0 )
 751                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 752         }
 753         if (timer_period > 0) {
 754                 if (rte_timer_reset(&stats_timer,
 755                                 (timer_period * rte_get_timer_hz()) / 1000,
 756                                 PERIODICAL,
 757                                 rte_lcore_id(),
 758                                 &print_stats, NULL
 759                                 ) != 0 )
 760                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 761         }
 762         /* launch per-lcore init on every slave lcore */
 763         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 764                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 765
 766                 if (qconf->n_rx_port == 0)
 767                         RTE_LOG(INFO, L2FWD,
 768                                 "lcore %u has nothing to do\n",
 769                                 lcore_id
 770                                 );
 771                 else {
 772                         rte_eal_remote_launch(
 773                                 l2fwd_launch_one_lcore,
 774                                 NULL,
 775                                 lcore_id
 776                                 );
 777                         rte_keepalive_register_core(rte_global_keepalive_info,
 778                                 lcore_id);
 779                 }
 780         }
 781         while (!terminate_signal_received) {
 782                 rte_timer_manage();
 783                 rte_delay_ms(5);
 784                 }
 785
 786         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 787                 if (rte_eal_wait_lcore(lcore_id) < 0)
 788                         return -1;
 789         }
 790
 791         if (ka_shm != NULL)
 792                 rte_keepalive_shm_cleanup(ka_shm);
 793         return 0;
 794 }