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                 .ignore_offload_bitfield = 1,
  85                 .offloads = DEV_RX_OFFLOAD_CRC_STRIP,
  86         },
  87         .txmode = {
  88                 .mq_mode = ETH_MQ_TX_NONE,
  89         },
  90 };
  91
  92 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
  93
  94 /* Per-port statistics struct */
  95 struct l2fwd_port_statistics {
  96         uint64_t tx;
  97         uint64_t rx;
  98         uint64_t dropped;
  99 } __rte_cache_aligned;
 100 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 101
 102 /* A tsc-based timer responsible for triggering statistics printout */
 103 #define TIMER_MILLISECOND 1
 104 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 105 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
 106 static int64_t check_period = 5; /* default check cycle is 5ms */
 107
 108 /* Keepalive structure */
 109 struct rte_keepalive *rte_global_keepalive_info;
 110
 111 /* Termination signalling */
 112 static int terminate_signal_received;
 113
 114 /* Termination signal handler */
 115 static void handle_sigterm(__rte_unused int value)
 116 {
 117         terminate_signal_received = 1;
 118 }
 119
 120 /* Print out statistics on packets dropped */
 121 static void
 122 print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 123         __attribute__((unused)) void *ptr_data)
 124 {
 125         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 126         uint16_t portid;
 127
 128         total_packets_dropped = 0;
 129         total_packets_tx = 0;
 130         total_packets_rx = 0;
 131
 132         const char clr[] = { 27, '[', '2', 'J', '\0' };
 133         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 134
 135                 /* Clear screen and move to top left */
 136         printf("%s%s", clr, topLeft);
 137
 138         printf("\nPort statistics ====================================");
 139
 140         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 141                 /* skip disabled ports */
 142                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 143                         continue;
 144                 printf("\nStatistics for port %u ------------------------------"
 145                            "\nPackets sent: %24"PRIu64
 146                            "\nPackets received: %20"PRIu64
 147                            "\nPackets dropped: %21"PRIu64,
 148                            portid,
 149                            port_statistics[portid].tx,
 150                            port_statistics[portid].rx,
 151                            port_statistics[portid].dropped);
 152
 153                 total_packets_dropped += port_statistics[portid].dropped;
 154                 total_packets_tx += port_statistics[portid].tx;
 155                 total_packets_rx += port_statistics[portid].rx;
 156         }
 157         printf("\nAggregate statistics ==============================="
 158                    "\nTotal packets sent: %18"PRIu64
 159                    "\nTotal packets received: %14"PRIu64
 160                    "\nTotal packets dropped: %15"PRIu64,
 161                    total_packets_tx,
 162                    total_packets_rx,
 163                    total_packets_dropped);
 164         printf("\n====================================================\n");
 165 }
 166
 167 static void
 168 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 169 {
 170         struct ether_hdr *eth;
 171         void *tmp;
 172         int sent;
 173         unsigned dst_port;
 174         struct rte_eth_dev_tx_buffer *buffer;
 175
 176         dst_port = l2fwd_dst_ports[portid];
 177         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 178
 179         /* 02:00:00:00:00:xx */
 180         tmp = &eth->d_addr.addr_bytes[0];
 181         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 182
 183         /* src addr */
 184         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 185
 186         buffer = tx_buffer[dst_port];
 187         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 188         if (sent)
 189                 port_statistics[dst_port].tx += sent;
 190 }
 191
 192 /* main processing loop */
 193 static void
 194 l2fwd_main_loop(void)
 195 {
 196         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 197         struct rte_mbuf *m;
 198         int sent;
 199         unsigned lcore_id;
 200         uint64_t prev_tsc, diff_tsc, cur_tsc;
 201         unsigned i, j, portid, nb_rx;
 202         struct lcore_queue_conf *qconf;
 203         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 204                 / US_PER_S * BURST_TX_DRAIN_US;
 205         struct rte_eth_dev_tx_buffer *buffer;
 206
 207         prev_tsc = 0;
 208
 209         lcore_id = rte_lcore_id();
 210         qconf = &lcore_queue_conf[lcore_id];
 211
 212         if (qconf->n_rx_port == 0) {
 213                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 214                 return;
 215         }
 216
 217         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 218
 219         for (i = 0; i < qconf->n_rx_port; i++) {
 220
 221                 portid = qconf->rx_port_list[i];
 222                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 223                         portid);
 224         }
 225
 226         uint64_t tsc_initial = rte_rdtsc();
 227         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 228
 229         while (!terminate_signal_received) {
 230                 /* Keepalive heartbeat */
 231                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 232
 233                 cur_tsc = rte_rdtsc();
 234
 235                 /*
 236                  * Die randomly within 7 secs for demo purposes if
 237                  * keepalive enabled
 238                  */
 239                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 240                         break;
 241
 242                 /*
 243                  * TX burst queue drain
 244                  */
 245                 diff_tsc = cur_tsc - prev_tsc;
 246                 if (unlikely(diff_tsc > drain_tsc)) {
 247
 248                         for (i = 0; i < qconf->n_rx_port; i++) {
 249
 250                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 251                                 buffer = tx_buffer[portid];
 252
 253                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 254                                 if (sent)
 255                                         port_statistics[portid].tx += sent;
 256
 257                         }
 258
 259                         prev_tsc = cur_tsc;
 260                 }
 261
 262                 /*
 263                  * Read packet from RX queues
 264                  */
 265                 for (i = 0; i < qconf->n_rx_port; i++) {
 266
 267                         portid = qconf->rx_port_list[i];
 268                         nb_rx = rte_eth_rx_burst(portid, 0,
 269                                                  pkts_burst, MAX_PKT_BURST);
 270
 271                         port_statistics[portid].rx += nb_rx;
 272
 273                         for (j = 0; j < nb_rx; j++) {
 274                                 m = pkts_burst[j];
 275                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 276                                 l2fwd_simple_forward(m, portid);
 277                         }
 278                 }
 279         }
 280 }
 281
 282 static int
 283 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 284 {
 285         l2fwd_main_loop();
 286         return 0;
 287 }
 288
 289 /* display usage */
 290 static void
 291 l2fwd_usage(const char *prgname)
 292 {
 293         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 294                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 295                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 296                "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
 297                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 298                prgname);
 299 }
 300
 301 static int
 302 l2fwd_parse_portmask(const char *portmask)
 303 {
 304         char *end = NULL;
 305         unsigned long pm;
 306
 307         /* parse hexadecimal string */
 308         pm = strtoul(portmask, &end, 16);
 309         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 310                 return -1;
 311
 312         if (pm == 0)
 313                 return -1;
 314
 315         return pm;
 316 }
 317
 318 static unsigned int
 319 l2fwd_parse_nqueue(const char *q_arg)
 320 {
 321         char *end = NULL;
 322         unsigned long n;
 323
 324         /* parse hexadecimal string */
 325         n = strtoul(q_arg, &end, 10);
 326         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 327                 return 0;
 328         if (n == 0)
 329                 return 0;
 330         if (n >= MAX_RX_QUEUE_PER_LCORE)
 331                 return 0;
 332
 333         return n;
 334 }
 335
 336 static int
 337 l2fwd_parse_timer_period(const char *q_arg)
 338 {
 339         char *end = NULL;
 340         int n;
 341
 342         /* parse number string */
 343         n = strtol(q_arg, &end, 10);
 344         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 345                 return -1;
 346         if (n >= MAX_TIMER_PERIOD)
 347                 return -1;
 348
 349         return n;
 350 }
 351
 352 static int
 353 l2fwd_parse_check_period(const char *q_arg)
 354 {
 355         char *end = NULL;
 356         int n;
 357
 358         /* parse number string */
 359         n = strtol(q_arg, &end, 10);
 360         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 361                 return -1;
 362         if (n >= MAX_TIMER_PERIOD)
 363                 return -1;
 364
 365         return n;
 366 }
 367
 368 /* Parse the argument given in the command line of the application */
 369 static int
 370 l2fwd_parse_args(int argc, char **argv)
 371 {
 372         int opt, ret;
 373         char **argvopt;
 374         int option_index;
 375         char *prgname = argv[0];
 376         static struct option lgopts[] = {
 377                 {NULL, 0, 0, 0}
 378         };
 379
 380         argvopt = argv;
 381
 382         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 383                                   lgopts, &option_index)) != EOF) {
 384
 385                 switch (opt) {
 386                 /* portmask */
 387                 case 'p':
 388                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 389                         if (l2fwd_enabled_port_mask == 0) {
 390                                 printf("invalid portmask\n");
 391                                 l2fwd_usage(prgname);
 392                                 return -1;
 393                         }
 394                         break;
 395
 396                 /* nqueue */
 397                 case 'q':
 398                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 399                         if (l2fwd_rx_queue_per_lcore == 0) {
 400                                 printf("invalid queue number\n");
 401                                 l2fwd_usage(prgname);
 402                                 return -1;
 403                         }
 404                         break;
 405
 406                 /* timer period */
 407                 case 'T':
 408                         timer_period = l2fwd_parse_timer_period(optarg)
 409                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 410                         if (timer_period < 0) {
 411                                 printf("invalid timer period\n");
 412                                 l2fwd_usage(prgname);
 413                                 return -1;
 414                         }
 415                         break;
 416
 417                 /* Check period */
 418                 case 'K':
 419                         check_period = l2fwd_parse_check_period(optarg);
 420                         if (check_period < 0) {
 421                                 printf("invalid check period\n");
 422                                 l2fwd_usage(prgname);
 423                                 return -1;
 424                         }
 425                         break;
 426
 427                 /* long options */
 428                 case 0:
 429                         l2fwd_usage(prgname);
 430                         return -1;
 431
 432                 default:
 433                         l2fwd_usage(prgname);
 434                         return -1;
 435                 }
 436         }
 437
 438         if (optind >= 0)
 439                 argv[optind-1] = prgname;
 440
 441         ret = optind-1;
 442         optind = 1; /* reset getopt lib */
 443         return ret;
 444 }
 445
 446 /* Check the link status of all ports in up to 9s, and print them finally */
 447 static void
 448 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
 449 {
 450 #define CHECK_INTERVAL 100 /* 100ms */
 451 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 452         uint16_t portid;
 453         uint8_t count, all_ports_up, print_flag = 0;
 454         struct rte_eth_link link;
 455
 456         printf("\nChecking link status");
 457         fflush(stdout);
 458         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 459                 all_ports_up = 1;
 460                 for (portid = 0; portid < port_num; portid++) {
 461                         if ((port_mask & (1 << portid)) == 0)
 462                                 continue;
 463                         memset(&link, 0, sizeof(link));
 464                         rte_eth_link_get_nowait(portid, &link);
 465                         /* print link status if flag set */
 466                         if (print_flag == 1) {
 467                                 if (link.link_status)
 468                                         printf(
 469                                         "Port%d Link Up. Speed %u Mbps - %s\n",
 470                                                 portid, link.link_speed,
 471                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 472                                         ("full-duplex") : ("half-duplex\n"));
 473                                 else
 474                                         printf("Port %d Link Down\n", portid);
 475                                 continue;
 476                         }
 477                         /* clear all_ports_up flag if any link down */
 478                         if (link.link_status == ETH_LINK_DOWN) {
 479                                 all_ports_up = 0;
 480                                 break;
 481                         }
 482                 }
 483                 /* after finally printing all link status, get out */
 484                 if (print_flag == 1)
 485                         break;
 486
 487                 if (all_ports_up == 0) {
 488                         printf(".");
 489                         fflush(stdout);
 490                         rte_delay_ms(CHECK_INTERVAL);
 491                 }
 492
 493                 /* set the print_flag if all ports up or timeout */
 494                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 495                         print_flag = 1;
 496                         printf("done\n");
 497                 }
 498         }
 499 }
 500
 501 static void
 502 dead_core(__rte_unused void *ptr_data, const int id_core)
 503 {
 504         if (terminate_signal_received)
 505                 return;
 506         printf("Dead core %i - restarting..\n", id_core);
 507         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 508                 rte_eal_wait_lcore(id_core);
 509                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 510         } else {
 511                 printf("..false positive!\n");
 512         }
 513 }
 514
 515 static void
 516 relay_core_state(void *ptr_data, const int id_core,
 517         const enum rte_keepalive_state core_state, uint64_t last_alive)
 518 {
 519         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 520                 id_core, core_state, last_alive);
 521 }
 522
 523 int
 524 main(int argc, char **argv)
 525 {
 526         struct lcore_queue_conf *qconf;
 527         int ret;
 528         uint16_t nb_ports;
 529         uint16_t nb_ports_available;
 530         uint16_t portid, last_port;
 531         unsigned lcore_id, rx_lcore_id;
 532         unsigned nb_ports_in_mask = 0;
 533         struct sigaction signal_handler;
 534         struct rte_keepalive_shm *ka_shm;
 535
 536         memset(&signal_handler, 0, sizeof(signal_handler));
 537         terminate_signal_received = 0;
 538         signal_handler.sa_handler = &handle_sigterm;
 539         if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
 540                         sigaction(SIGTERM, &signal_handler, NULL) == -1)
 541                 rte_exit(EXIT_FAILURE, "SIGNAL\n");
 542
 543
 544         /* init EAL */
 545         ret = rte_eal_init(argc, argv);
 546         if (ret < 0)
 547                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 548         argc -= ret;
 549         argv += ret;
 550
 551         l2fwd_enabled_port_mask = 0;
 552
 553         /* parse application arguments (after the EAL ones) */
 554         ret = l2fwd_parse_args(argc, argv);
 555         if (ret < 0)
 556                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 557
 558         /* create the mbuf pool */
 559         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 560                 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 561         if (l2fwd_pktmbuf_pool == NULL)
 562                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 563
 564         nb_ports = rte_eth_dev_count();
 565         if (nb_ports == 0)
 566                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 567
 568         /* reset l2fwd_dst_ports */
 569         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 570                 l2fwd_dst_ports[portid] = 0;
 571         last_port = 0;
 572
 573         /*
 574          * Each logical core is assigned a dedicated TX queue on each port.
 575          */
 576         for (portid = 0; portid < nb_ports; portid++) {
 577                 /* skip ports that are not enabled */
 578                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 579                         continue;
 580
 581                 if (nb_ports_in_mask % 2) {
 582                         l2fwd_dst_ports[portid] = last_port;
 583                         l2fwd_dst_ports[last_port] = portid;
 584                 } else
 585                         last_port = portid;
 586
 587                 nb_ports_in_mask++;
 588         }
 589         if (nb_ports_in_mask % 2) {
 590                 printf("Notice: odd number of ports in portmask.\n");
 591                 l2fwd_dst_ports[last_port] = last_port;
 592         }
 593
 594         rx_lcore_id = 1;
 595         qconf = NULL;
 596
 597         /* Initialize the port/queue configuration of each logical core */
 598         for (portid = 0; portid < nb_ports; portid++) {
 599                 /* skip ports that are not enabled */
 600                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 601                         continue;
 602
 603                 /* get the lcore_id for this port */
 604                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 605                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 606                        l2fwd_rx_queue_per_lcore) {
 607                         rx_lcore_id++;
 608                         if (rx_lcore_id >= RTE_MAX_LCORE)
 609                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 610                 }
 611
 612                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 613                         /* Assigned a new logical core in the loop above. */
 614                         qconf = &lcore_queue_conf[rx_lcore_id];
 615
 616                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 617                 qconf->n_rx_port++;
 618                 printf("Lcore %u: RX port %u\n",
 619                         rx_lcore_id, portid);
 620         }
 621
 622         nb_ports_available = nb_ports;
 623
 624         /* Initialise each port */
 625         for (portid = 0; portid < nb_ports; portid++) {
 626                 struct rte_eth_dev_info dev_info;
 627                 struct rte_eth_rxconf rxq_conf;
 628                 struct rte_eth_txconf txq_conf;
 629                 struct rte_eth_conf local_port_conf = port_conf;
 630
 631                 /* skip ports that are not enabled */
 632                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 633                         printf("Skipping disabled port %u\n", portid);
 634                         nb_ports_available--;
 635                         continue;
 636                 }
 637                 /* init port */
 638                 printf("Initializing port %u... ", portid);
 639                 fflush(stdout);
 640                 rte_eth_dev_info_get(portid, &dev_info);
 641                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 642                         local_port_conf.txmode.offloads |=
 643                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 644                 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
 645                 if (ret < 0)
 646                         rte_exit(EXIT_FAILURE,
 647                                 "Cannot configure device: err=%d, port=%u\n",
 648                                 ret, portid);
 649
 650                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 651                                                        &nb_txd);
 652                 if (ret < 0)
 653                         rte_exit(EXIT_FAILURE,
 654                                 "Cannot adjust number of descriptors: err=%d, port=%u\n",
 655                                 ret, portid);
 656
 657                 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
 658
 659                 /* init one RX queue */
 660                 fflush(stdout);
 661                 rxq_conf = dev_info.default_rxconf;
 662                 rxq_conf.offloads = local_port_conf.rxmode.offloads;
 663                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 664                                              rte_eth_dev_socket_id(portid),
 665                                              &rxq_conf,
 666                                              l2fwd_pktmbuf_pool);
 667                 if (ret < 0)
 668                         rte_exit(EXIT_FAILURE,
 669                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 670                                 ret, portid);
 671
 672                 /* init one TX queue on each port */
 673                 fflush(stdout);
 674                 txq_conf = dev_info.default_txconf;
 675                 txq_conf.txq_flags = ETH_TXQ_FLAGS_IGNORE;
 676                 txq_conf.offloads = local_port_conf.txmode.offloads;
 677                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 678                                 rte_eth_dev_socket_id(portid),
 679                                 &txq_conf);
 680                 if (ret < 0)
 681                         rte_exit(EXIT_FAILURE,
 682                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 683                                 ret, portid);
 684
 685                 /* Initialize TX buffers */
 686                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 687                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 688                                 rte_eth_dev_socket_id(portid));
 689                 if (tx_buffer[portid] == NULL)
 690                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 691                                                 portid);
 692
 693                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 694
 695                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 696                                 rte_eth_tx_buffer_count_callback,
 697                                 &port_statistics[portid].dropped);
 698                 if (ret < 0)
 699                         rte_exit(EXIT_FAILURE,
 700                         "Cannot set error callback for tx buffer on port %u\n",
 701                                  portid);
 702
 703                 /* Start device */
 704                 ret = rte_eth_dev_start(portid);
 705                 if (ret < 0)
 706                         rte_exit(EXIT_FAILURE,
 707                                 "rte_eth_dev_start:err=%d, port=%u\n",
 708                                   ret, portid);
 709
 710                 rte_eth_promiscuous_enable(portid);
 711
 712                 printf("Port %u, MAC address: "
 713                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 714                         portid,
 715                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 716                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 717                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 718                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 719                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 720                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 721
 722                 /* initialize port stats */
 723                 memset(&port_statistics, 0, sizeof(port_statistics));
 724         }
 725
 726         if (!nb_ports_available) {
 727                 rte_exit(EXIT_FAILURE,
 728                         "All available ports are disabled. Please set portmask.\n");
 729         }
 730
 731         check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
 732
 733         struct rte_timer hb_timer, stats_timer;
 734
 735         rte_timer_subsystem_init();
 736         rte_timer_init(&stats_timer);
 737
 738         ka_shm = NULL;
 739         if (check_period > 0) {
 740                 ka_shm = rte_keepalive_shm_create();
 741                 if (ka_shm == NULL)
 742                         rte_exit(EXIT_FAILURE,
 743                                 "rte_keepalive_shm_create() failed");
 744                 rte_global_keepalive_info =
 745                         rte_keepalive_create(&dead_core, ka_shm);
 746                 if (rte_global_keepalive_info == NULL)
 747                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 748                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 749                         relay_core_state, ka_shm);
 750                 rte_timer_init(&hb_timer);
 751                 if (rte_timer_reset(&hb_timer,
 752                                 (check_period * rte_get_timer_hz()) / 1000,
 753                                 PERIODICAL,
 754                                 rte_lcore_id(),
 755                                 (void(*)(struct rte_timer*, void*))
 756                                 &rte_keepalive_dispatch_pings,
 757                                 rte_global_keepalive_info
 758                                 ) != 0 )
 759                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 760         }
 761         if (timer_period > 0) {
 762                 if (rte_timer_reset(&stats_timer,
 763                                 (timer_period * rte_get_timer_hz()) / 1000,
 764                                 PERIODICAL,
 765                                 rte_lcore_id(),
 766                                 &print_stats, NULL
 767                                 ) != 0 )
 768                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 769         }
 770         /* launch per-lcore init on every slave lcore */
 771         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 772                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 773
 774                 if (qconf->n_rx_port == 0)
 775                         RTE_LOG(INFO, L2FWD,
 776                                 "lcore %u has nothing to do\n",
 777                                 lcore_id
 778                                 );
 779                 else {
 780                         rte_eal_remote_launch(
 781                                 l2fwd_launch_one_lcore,
 782                                 NULL,
 783                                 lcore_id
 784                                 );
 785                         rte_keepalive_register_core(rte_global_keepalive_info,
 786                                 lcore_id);
 787                 }
 788         }
 789         while (!terminate_signal_received) {
 790                 rte_timer_manage();
 791                 rte_delay_ms(5);
 792                 }
 793
 794         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 795                 if (rte_eal_wait_lcore(lcore_id) < 0)
 796                         return -1;
 797         }
 798
 799         if (ka_shm != NULL)
 800                 rte_keepalive_shm_cleanup(ka_shm);
 801         return 0;
 802 }