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