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 1024
  56 #define RTE_TEST_TX_DESC_DEFAULT 1024
  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 struct rte_eth_conf port_conf = {
  82         .rxmode = {
  83                 .split_hdr_size = 0,
  84                 .offloads = DEV_RX_OFFLOAD_CRC_STRIP,
  85         },
  86         .txmode = {
  87                 .mq_mode = ETH_MQ_TX_NONE,
  88         },
  89 };
  90
  91 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
  92
  93 /* Per-port statistics struct */
  94 struct l2fwd_port_statistics {
  95         uint64_t tx;
  96         uint64_t rx;
  97         uint64_t dropped;
  98 } __rte_cache_aligned;
  99 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 100
 101 /* A tsc-based timer responsible for triggering statistics printout */
 102 #define TIMER_MILLISECOND 1
 103 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 104 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
 105 static int64_t check_period = 5; /* default check cycle is 5ms */
 106
 107 /* Keepalive structure */
 108 struct rte_keepalive *rte_global_keepalive_info;
 109
 110 /* Termination signalling */
 111 static int terminate_signal_received;
 112
 113 /* Termination signal handler */
 114 static void handle_sigterm(__rte_unused int value)
 115 {
 116         terminate_signal_received = 1;
 117 }
 118
 119 /* Print out statistics on packets dropped */
 120 static void
 121 print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 122         __attribute__((unused)) void *ptr_data)
 123 {
 124         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 125         uint16_t portid;
 126
 127         total_packets_dropped = 0;
 128         total_packets_tx = 0;
 129         total_packets_rx = 0;
 130
 131         const char clr[] = { 27, '[', '2', 'J', '\0' };
 132         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 133
 134                 /* Clear screen and move to top left */
 135         printf("%s%s", clr, topLeft);
 136
 137         printf("\nPort statistics ====================================");
 138
 139         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 140                 /* skip disabled ports */
 141                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 142                         continue;
 143                 printf("\nStatistics for port %u ------------------------------"
 144                            "\nPackets sent: %24"PRIu64
 145                            "\nPackets received: %20"PRIu64
 146                            "\nPackets dropped: %21"PRIu64,
 147                            portid,
 148                            port_statistics[portid].tx,
 149                            port_statistics[portid].rx,
 150                            port_statistics[portid].dropped);
 151
 152                 total_packets_dropped += port_statistics[portid].dropped;
 153                 total_packets_tx += port_statistics[portid].tx;
 154                 total_packets_rx += port_statistics[portid].rx;
 155         }
 156         printf("\nAggregate statistics ==============================="
 157                    "\nTotal packets sent: %18"PRIu64
 158                    "\nTotal packets received: %14"PRIu64
 159                    "\nTotal packets dropped: %15"PRIu64,
 160                    total_packets_tx,
 161                    total_packets_rx,
 162                    total_packets_dropped);
 163         printf("\n====================================================\n");
 164 }
 165
 166 static void
 167 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 168 {
 169         struct ether_hdr *eth;
 170         void *tmp;
 171         int sent;
 172         unsigned dst_port;
 173         struct rte_eth_dev_tx_buffer *buffer;
 174
 175         dst_port = l2fwd_dst_ports[portid];
 176         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 177
 178         /* 02:00:00:00:00:xx */
 179         tmp = &eth->d_addr.addr_bytes[0];
 180         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 181
 182         /* src addr */
 183         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 184
 185         buffer = tx_buffer[dst_port];
 186         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 187         if (sent)
 188                 port_statistics[dst_port].tx += sent;
 189 }
 190
 191 /* main processing loop */
 192 static void
 193 l2fwd_main_loop(void)
 194 {
 195         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 196         struct rte_mbuf *m;
 197         int sent;
 198         unsigned lcore_id;
 199         uint64_t prev_tsc, diff_tsc, cur_tsc;
 200         unsigned i, j, portid, nb_rx;
 201         struct lcore_queue_conf *qconf;
 202         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 203                 / US_PER_S * BURST_TX_DRAIN_US;
 204         struct rte_eth_dev_tx_buffer *buffer;
 205
 206         prev_tsc = 0;
 207
 208         lcore_id = rte_lcore_id();
 209         qconf = &lcore_queue_conf[lcore_id];
 210
 211         if (qconf->n_rx_port == 0) {
 212                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 213                 return;
 214         }
 215
 216         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 217
 218         for (i = 0; i < qconf->n_rx_port; i++) {
 219
 220                 portid = qconf->rx_port_list[i];
 221                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 222                         portid);
 223         }
 224
 225         uint64_t tsc_initial = rte_rdtsc();
 226         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 227
 228         while (!terminate_signal_received) {
 229                 /* Keepalive heartbeat */
 230                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 231
 232                 cur_tsc = rte_rdtsc();
 233
 234                 /*
 235                  * Die randomly within 7 secs for demo purposes if
 236                  * keepalive enabled
 237                  */
 238                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 239                         break;
 240
 241                 /*
 242                  * TX burst queue drain
 243                  */
 244                 diff_tsc = cur_tsc - prev_tsc;
 245                 if (unlikely(diff_tsc > drain_tsc)) {
 246
 247                         for (i = 0; i < qconf->n_rx_port; i++) {
 248
 249                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 250                                 buffer = tx_buffer[portid];
 251
 252                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 253                                 if (sent)
 254                                         port_statistics[portid].tx += sent;
 255
 256                         }
 257
 258                         prev_tsc = cur_tsc;
 259                 }
 260
 261                 /*
 262                  * Read packet from RX queues
 263                  */
 264                 for (i = 0; i < qconf->n_rx_port; i++) {
 265
 266                         portid = qconf->rx_port_list[i];
 267                         nb_rx = rte_eth_rx_burst(portid, 0,
 268                                                  pkts_burst, MAX_PKT_BURST);
 269
 270                         port_statistics[portid].rx += nb_rx;
 271
 272                         for (j = 0; j < nb_rx; j++) {
 273                                 m = pkts_burst[j];
 274                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 275                                 l2fwd_simple_forward(m, portid);
 276                         }
 277                 }
 278         }
 279 }
 280
 281 static int
 282 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 283 {
 284         l2fwd_main_loop();
 285         return 0;
 286 }
 287
 288 /* display usage */
 289 static void
 290 l2fwd_usage(const char *prgname)
 291 {
 292         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 293                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 294                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 295                "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
 296                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 297                prgname);
 298 }
 299
 300 static int
 301 l2fwd_parse_portmask(const char *portmask)
 302 {
 303         char *end = NULL;
 304         unsigned long pm;
 305
 306         /* parse hexadecimal string */
 307         pm = strtoul(portmask, &end, 16);
 308         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 309                 return -1;
 310
 311         if (pm == 0)
 312                 return -1;
 313
 314         return pm;
 315 }
 316
 317 static unsigned int
 318 l2fwd_parse_nqueue(const char *q_arg)
 319 {
 320         char *end = NULL;
 321         unsigned long n;
 322
 323         /* parse hexadecimal string */
 324         n = strtoul(q_arg, &end, 10);
 325         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 326                 return 0;
 327         if (n == 0)
 328                 return 0;
 329         if (n >= MAX_RX_QUEUE_PER_LCORE)
 330                 return 0;
 331
 332         return n;
 333 }
 334
 335 static int
 336 l2fwd_parse_timer_period(const char *q_arg)
 337 {
 338         char *end = NULL;
 339         int n;
 340
 341         /* parse number string */
 342         n = strtol(q_arg, &end, 10);
 343         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 344                 return -1;
 345         if (n >= MAX_TIMER_PERIOD)
 346                 return -1;
 347
 348         return n;
 349 }
 350
 351 static int
 352 l2fwd_parse_check_period(const char *q_arg)
 353 {
 354         char *end = NULL;
 355         int n;
 356
 357         /* parse number string */
 358         n = strtol(q_arg, &end, 10);
 359         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 360                 return -1;
 361         if (n >= MAX_TIMER_PERIOD)
 362                 return -1;
 363
 364         return n;
 365 }
 366
 367 /* Parse the argument given in the command line of the application */
 368 static int
 369 l2fwd_parse_args(int argc, char **argv)
 370 {
 371         int opt, ret;
 372         char **argvopt;
 373         int option_index;
 374         char *prgname = argv[0];
 375         static struct option lgopts[] = {
 376                 {NULL, 0, 0, 0}
 377         };
 378
 379         argvopt = argv;
 380
 381         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 382                                   lgopts, &option_index)) != EOF) {
 383
 384                 switch (opt) {
 385                 /* portmask */
 386                 case 'p':
 387                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 388                         if (l2fwd_enabled_port_mask == 0) {
 389                                 printf("invalid portmask\n");
 390                                 l2fwd_usage(prgname);
 391                                 return -1;
 392                         }
 393                         break;
 394
 395                 /* nqueue */
 396                 case 'q':
 397                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 398                         if (l2fwd_rx_queue_per_lcore == 0) {
 399                                 printf("invalid queue number\n");
 400                                 l2fwd_usage(prgname);
 401                                 return -1;
 402                         }
 403                         break;
 404
 405                 /* timer period */
 406                 case 'T':
 407                         timer_period = l2fwd_parse_timer_period(optarg)
 408                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 409                         if (timer_period < 0) {
 410                                 printf("invalid timer period\n");
 411                                 l2fwd_usage(prgname);
 412                                 return -1;
 413                         }
 414                         break;
 415
 416                 /* Check period */
 417                 case 'K':
 418                         check_period = l2fwd_parse_check_period(optarg);
 419                         if (check_period < 0) {
 420                                 printf("invalid check period\n");
 421                                 l2fwd_usage(prgname);
 422                                 return -1;
 423                         }
 424                         break;
 425
 426                 /* long options */
 427                 case 0:
 428                         l2fwd_usage(prgname);
 429                         return -1;
 430
 431                 default:
 432                         l2fwd_usage(prgname);
 433                         return -1;
 434                 }
 435         }
 436
 437         if (optind >= 0)
 438                 argv[optind-1] = prgname;
 439
 440         ret = optind-1;
 441         optind = 1; /* reset getopt lib */
 442         return ret;
 443 }
 444
 445 /* Check the link status of all ports in up to 9s, and print them finally */
 446 static void
 447 check_all_ports_link_status(uint32_t port_mask)
 448 {
 449 #define CHECK_INTERVAL 100 /* 100ms */
 450 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 451         uint16_t portid;
 452         uint8_t count, all_ports_up, print_flag = 0;
 453         struct rte_eth_link link;
 454
 455         printf("\nChecking link status");
 456         fflush(stdout);
 457         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 458                 all_ports_up = 1;
 459                 RTE_ETH_FOREACH_DEV(portid) {
 460                         if ((port_mask & (1 << portid)) == 0)
 461                                 continue;
 462                         memset(&link, 0, sizeof(link));
 463                         rte_eth_link_get_nowait(portid, &link);
 464                         /* print link status if flag set */
 465                         if (print_flag == 1) {
 466                                 if (link.link_status)
 467                                         printf(
 468                                         "Port%d Link Up. Speed %u Mbps - %s\n",
 469                                                 portid, link.link_speed,
 470                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 471                                         ("full-duplex") : ("half-duplex\n"));
 472                                 else
 473                                         printf("Port %d Link Down\n", portid);
 474                                 continue;
 475                         }
 476                         /* clear all_ports_up flag if any link down */
 477                         if (link.link_status == ETH_LINK_DOWN) {
 478                                 all_ports_up = 0;
 479                                 break;
 480                         }
 481                 }
 482                 /* after finally printing all link status, get out */
 483                 if (print_flag == 1)
 484                         break;
 485
 486                 if (all_ports_up == 0) {
 487                         printf(".");
 488                         fflush(stdout);
 489                         rte_delay_ms(CHECK_INTERVAL);
 490                 }
 491
 492                 /* set the print_flag if all ports up or timeout */
 493                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 494                         print_flag = 1;
 495                         printf("done\n");
 496                 }
 497         }
 498 }
 499
 500 static void
 501 dead_core(__rte_unused void *ptr_data, const int id_core)
 502 {
 503         if (terminate_signal_received)
 504                 return;
 505         printf("Dead core %i - restarting..\n", id_core);
 506         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 507                 rte_eal_wait_lcore(id_core);
 508                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 509         } else {
 510                 printf("..false positive!\n");
 511         }
 512 }
 513
 514 static void
 515 relay_core_state(void *ptr_data, const int id_core,
 516         const enum rte_keepalive_state core_state, uint64_t last_alive)
 517 {
 518         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 519                 id_core, core_state, last_alive);
 520 }
 521
 522 int
 523 main(int argc, char **argv)
 524 {
 525         struct lcore_queue_conf *qconf;
 526         int ret;
 527         uint16_t nb_ports;
 528         uint16_t nb_ports_available = 0;
 529         uint16_t portid, last_port;
 530         unsigned lcore_id, rx_lcore_id;
 531         unsigned nb_ports_in_mask = 0;
 532         struct sigaction signal_handler;
 533         struct rte_keepalive_shm *ka_shm;
 534
 535         memset(&signal_handler, 0, sizeof(signal_handler));
 536         terminate_signal_received = 0;
 537         signal_handler.sa_handler = &handle_sigterm;
 538         if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
 539                         sigaction(SIGTERM, &signal_handler, NULL) == -1)
 540                 rte_exit(EXIT_FAILURE, "SIGNAL\n");
 541
 542
 543         /* init EAL */
 544         ret = rte_eal_init(argc, argv);
 545         if (ret < 0)
 546                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 547         argc -= ret;
 548         argv += ret;
 549
 550         l2fwd_enabled_port_mask = 0;
 551
 552         /* parse application arguments (after the EAL ones) */
 553         ret = l2fwd_parse_args(argc, argv);
 554         if (ret < 0)
 555                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 556
 557         /* create the mbuf pool */
 558         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 559                 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 560         if (l2fwd_pktmbuf_pool == NULL)
 561                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 562
 563         nb_ports = rte_eth_dev_count_avail();
 564         if (nb_ports == 0)
 565                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 566
 567         /* reset l2fwd_dst_ports */
 568         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 569                 l2fwd_dst_ports[portid] = 0;
 570         last_port = 0;
 571
 572         /*
 573          * Each logical core is assigned a dedicated TX queue on each port.
 574          */
 575         RTE_ETH_FOREACH_DEV(portid) {
 576                 /* skip ports that are not enabled */
 577                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 578                         continue;
 579
 580                 if (nb_ports_in_mask % 2) {
 581                         l2fwd_dst_ports[portid] = last_port;
 582                         l2fwd_dst_ports[last_port] = portid;
 583                 } else
 584                         last_port = portid;
 585
 586                 nb_ports_in_mask++;
 587         }
 588         if (nb_ports_in_mask % 2) {
 589                 printf("Notice: odd number of ports in portmask.\n");
 590                 l2fwd_dst_ports[last_port] = last_port;
 591         }
 592
 593         rx_lcore_id = 1;
 594         qconf = NULL;
 595
 596         /* Initialize the port/queue configuration of each logical core */
 597         RTE_ETH_FOREACH_DEV(portid) {
 598                 /* skip ports that are not enabled */
 599                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 600                         continue;
 601
 602                 /* get the lcore_id for this port */
 603                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 604                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 605                        l2fwd_rx_queue_per_lcore) {
 606                         rx_lcore_id++;
 607                         if (rx_lcore_id >= RTE_MAX_LCORE)
 608                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 609                 }
 610
 611                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 612                         /* Assigned a new logical core in the loop above. */
 613                         qconf = &lcore_queue_conf[rx_lcore_id];
 614
 615                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 616                 qconf->n_rx_port++;
 617                 printf("Lcore %u: RX port %u\n",
 618                         rx_lcore_id, portid);
 619         }
 620
 621         /* Initialise each port */
 622         RTE_ETH_FOREACH_DEV(portid) {
 623                 struct rte_eth_dev_info dev_info;
 624                 struct rte_eth_rxconf rxq_conf;
 625                 struct rte_eth_txconf txq_conf;
 626                 struct rte_eth_conf local_port_conf = port_conf;
 627
 628                 /* skip ports that are not enabled */
 629                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 630                         printf("Skipping disabled port %u\n", portid);
 631                         continue;
 632                 }
 633                 nb_ports_available++;
 634
 635                 /* init port */
 636                 printf("Initializing port %u... ", portid);
 637                 fflush(stdout);
 638                 rte_eth_dev_info_get(portid, &dev_info);
 639                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 640                         local_port_conf.txmode.offloads |=
 641                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 642                 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
 643                 if (ret < 0)
 644                         rte_exit(EXIT_FAILURE,
 645                                 "Cannot configure device: err=%d, port=%u\n",
 646                                 ret, portid);
 647
 648                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 649                                                        &nb_txd);
 650                 if (ret < 0)
 651                         rte_exit(EXIT_FAILURE,
 652                                 "Cannot adjust number of descriptors: err=%d, port=%u\n",
 653                                 ret, portid);
 654
 655                 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
 656
 657                 /* init one RX queue */
 658                 fflush(stdout);
 659                 rxq_conf = dev_info.default_rxconf;
 660                 rxq_conf.offloads = local_port_conf.rxmode.offloads;
 661                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 662                                              rte_eth_dev_socket_id(portid),
 663                                              &rxq_conf,
 664                                              l2fwd_pktmbuf_pool);
 665                 if (ret < 0)
 666                         rte_exit(EXIT_FAILURE,
 667                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 668                                 ret, portid);
 669
 670                 /* init one TX queue on each port */
 671                 fflush(stdout);
 672                 txq_conf = dev_info.default_txconf;
 673                 txq_conf.offloads = local_port_conf.txmode.offloads;
 674                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 675                                 rte_eth_dev_socket_id(portid),
 676                                 &txq_conf);
 677                 if (ret < 0)
 678                         rte_exit(EXIT_FAILURE,
 679                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 680                                 ret, portid);
 681
 682                 /* Initialize TX buffers */
 683                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 684                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 685                                 rte_eth_dev_socket_id(portid));
 686                 if (tx_buffer[portid] == NULL)
 687                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 688                                                 portid);
 689
 690                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 691
 692                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 693                                 rte_eth_tx_buffer_count_callback,
 694                                 &port_statistics[portid].dropped);
 695                 if (ret < 0)
 696                         rte_exit(EXIT_FAILURE,
 697                         "Cannot set error callback for tx buffer on port %u\n",
 698                                  portid);
 699
 700                 /* Start device */
 701                 ret = rte_eth_dev_start(portid);
 702                 if (ret < 0)
 703                         rte_exit(EXIT_FAILURE,
 704                                 "rte_eth_dev_start:err=%d, port=%u\n",
 705                                   ret, portid);
 706
 707                 rte_eth_promiscuous_enable(portid);
 708
 709                 printf("Port %u, MAC address: "
 710                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 711                         portid,
 712                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 713                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 714                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 715                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 716                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 717                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 718
 719                 /* initialize port stats */
 720                 memset(&port_statistics, 0, sizeof(port_statistics));
 721         }
 722
 723         if (!nb_ports_available) {
 724                 rte_exit(EXIT_FAILURE,
 725                         "All available ports are disabled. Please set portmask.\n");
 726         }
 727
 728         check_all_ports_link_status(l2fwd_enabled_port_mask);
 729
 730         struct rte_timer hb_timer, stats_timer;
 731
 732         rte_timer_subsystem_init();
 733         rte_timer_init(&stats_timer);
 734
 735         ka_shm = NULL;
 736         if (check_period > 0) {
 737                 ka_shm = rte_keepalive_shm_create();
 738                 if (ka_shm == NULL)
 739                         rte_exit(EXIT_FAILURE,
 740                                 "rte_keepalive_shm_create() failed");
 741                 rte_global_keepalive_info =
 742                         rte_keepalive_create(&dead_core, ka_shm);
 743                 if (rte_global_keepalive_info == NULL)
 744                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 745                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 746                         relay_core_state, ka_shm);
 747                 rte_timer_init(&hb_timer);
 748                 if (rte_timer_reset(&hb_timer,
 749                                 (check_period * rte_get_timer_hz()) / 1000,
 750                                 PERIODICAL,
 751                                 rte_lcore_id(),
 752                                 (void(*)(struct rte_timer*, void*))
 753                                 &rte_keepalive_dispatch_pings,
 754                                 rte_global_keepalive_info
 755                                 ) != 0 )
 756                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 757         }
 758         if (timer_period > 0) {
 759                 if (rte_timer_reset(&stats_timer,
 760                                 (timer_period * rte_get_timer_hz()) / 1000,
 761                                 PERIODICAL,
 762                                 rte_lcore_id(),
 763                                 &print_stats, NULL
 764                                 ) != 0 )
 765                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 766         }
 767         /* launch per-lcore init on every slave lcore */
 768         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 769                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 770
 771                 if (qconf->n_rx_port == 0)
 772                         RTE_LOG(INFO, L2FWD,
 773                                 "lcore %u has nothing to do\n",
 774                                 lcore_id
 775                                 );
 776                 else {
 777                         rte_eal_remote_launch(
 778                                 l2fwd_launch_one_lcore,
 779                                 NULL,
 780                                 lcore_id
 781                                 );
 782                         rte_keepalive_register_core(rte_global_keepalive_info,
 783                                 lcore_id);
 784                 }
 785         }
 786         while (!terminate_signal_received) {
 787                 rte_timer_manage();
 788                 rte_delay_ms(5);
 789                 }
 790
 791         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 792                 if (rte_eal_wait_lcore(lcore_id) < 0)
 793                         return -1;
 794         }
 795
 796         if (ka_shm != NULL)
 797                 rte_keepalive_shm_cleanup(ka_shm);
 798         return 0;
 799 }