examples/l2fwd/main.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <stdint.h>
  38 #include <inttypes.h>
  39 #include <sys/types.h>
  40 #include <sys/queue.h>
  41 #include <netinet/in.h>
  42 #include <setjmp.h>
  43 #include <stdarg.h>
  44 #include <ctype.h>
  45 #include <errno.h>
  46 #include <getopt.h>
  47 #include <signal.h>
  48 #include <stdbool.h>
  49
  50 #include <rte_common.h>
  51 #include <rte_log.h>
  52 #include <rte_malloc.h>
  53 #include <rte_memory.h>
  54 #include <rte_memcpy.h>
  55 #include <rte_memzone.h>
  56 #include <rte_eal.h>
  57 #include <rte_per_lcore.h>
  58 #include <rte_launch.h>
  59 #include <rte_atomic.h>
  60 #include <rte_cycles.h>
  61 #include <rte_prefetch.h>
  62 #include <rte_lcore.h>
  63 #include <rte_per_lcore.h>
  64 #include <rte_branch_prediction.h>
  65 #include <rte_interrupts.h>
  66 #include <rte_pci.h>
  67 #include <rte_random.h>
  68 #include <rte_debug.h>
  69 #include <rte_ether.h>
  70 #include <rte_ethdev.h>
  71 #include <rte_mempool.h>
  72 #include <rte_mbuf.h>
  73
  74 static volatile bool force_quit;
  75
  76 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
  77
  78 #define NB_MBUF   8192
  79
  80 #define MAX_PKT_BURST 32
  81 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
  82 #define MEMPOOL_CACHE_SIZE 256
  83
  84 /*
  85  * Configurable number of RX/TX ring descriptors
  86  */
  87 #define RTE_TEST_RX_DESC_DEFAULT 128
  88 #define RTE_TEST_TX_DESC_DEFAULT 512
  89 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  90 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  91
  92 /* ethernet addresses of ports */
  93 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
  94
  95 /* mask of enabled ports */
  96 static uint32_t l2fwd_enabled_port_mask = 0;
  97
  98 /* list of enabled ports */
  99 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
 100
 101 static unsigned int l2fwd_rx_queue_per_lcore = 1;
 102
 103 #define MAX_RX_QUEUE_PER_LCORE 16
 104 #define MAX_TX_QUEUE_PER_PORT 16
 105 struct lcore_queue_conf {
 106         unsigned n_rx_port;
 107         unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
 108 } __rte_cache_aligned;
 109 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
 110
 111 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 112
 113 static const struct rte_eth_conf port_conf = {
 114         .rxmode = {
 115                 .split_hdr_size = 0,
 116                 .header_split   = 0, /**< Header Split disabled */
 117                 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
 118                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 119                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 120                 .hw_strip_crc   = 0, /**< CRC stripped by hardware */
 121         },
 122         .txmode = {
 123                 .mq_mode = ETH_MQ_TX_NONE,
 124         },
 125 };
 126
 127 struct rte_mempool * l2fwd_pktmbuf_pool = NULL;
 128
 129 /* Per-port statistics struct */
 130 struct l2fwd_port_statistics {
 131         uint64_t tx;
 132         uint64_t rx;
 133         uint64_t dropped;
 134 } __rte_cache_aligned;
 135 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 136
 137 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 138 /* A tsc-based timer responsible for triggering statistics printout */
 139 static uint64_t timer_period = 10; /* default period is 10 seconds */
 140
 141 /* Print out statistics on packets dropped */
 142 static void
 143 print_stats(void)
 144 {
 145         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 146         unsigned portid;
 147
 148         total_packets_dropped = 0;
 149         total_packets_tx = 0;
 150         total_packets_rx = 0;
 151
 152         const char clr[] = { 27, '[', '2', 'J', '\0' };
 153         const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
 154
 155                 /* Clear screen and move to top left */
 156         printf("%s%s", clr, topLeft);
 157
 158         printf("\nPort statistics ====================================");
 159
 160         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 161                 /* skip disabled ports */
 162                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 163                         continue;
 164                 printf("\nStatistics for port %u ------------------------------"
 165                            "\nPackets sent: %24"PRIu64
 166                            "\nPackets received: %20"PRIu64
 167                            "\nPackets dropped: %21"PRIu64,
 168                            portid,
 169                            port_statistics[portid].tx,
 170                            port_statistics[portid].rx,
 171                            port_statistics[portid].dropped);
 172
 173                 total_packets_dropped += port_statistics[portid].dropped;
 174                 total_packets_tx += port_statistics[portid].tx;
 175                 total_packets_rx += port_statistics[portid].rx;
 176         }
 177         printf("\nAggregate statistics ==============================="
 178                    "\nTotal packets sent: %18"PRIu64
 179                    "\nTotal packets received: %14"PRIu64
 180                    "\nTotal packets dropped: %15"PRIu64,
 181                    total_packets_tx,
 182                    total_packets_rx,
 183                    total_packets_dropped);
 184         printf("\n====================================================\n");
 185 }
 186
 187 static void
 188 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 189 {
 190         struct ether_hdr *eth;
 191         void *tmp;
 192         unsigned dst_port;
 193         int sent;
 194         struct rte_eth_dev_tx_buffer *buffer;
 195
 196         dst_port = l2fwd_dst_ports[portid];
 197         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 198
 199         /* 02:00:00:00:00:xx */
 200         tmp = &eth->d_addr.addr_bytes[0];
 201         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 202
 203         /* src addr */
 204         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 205
 206         buffer = tx_buffer[dst_port];
 207         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 208         if (sent)
 209                 port_statistics[dst_port].tx += sent;
 210 }
 211
 212 /* main processing loop */
 213 static void
 214 l2fwd_main_loop(void)
 215 {
 216         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 217         struct rte_mbuf *m;
 218         int sent;
 219         unsigned lcore_id;
 220         uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
 221         unsigned i, j, portid, nb_rx;
 222         struct lcore_queue_conf *qconf;
 223         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
 224                         BURST_TX_DRAIN_US;
 225         struct rte_eth_dev_tx_buffer *buffer;
 226
 227         prev_tsc = 0;
 228         timer_tsc = 0;
 229
 230         lcore_id = rte_lcore_id();
 231         qconf = &lcore_queue_conf[lcore_id];
 232
 233         if (qconf->n_rx_port == 0) {
 234                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 235                 return;
 236         }
 237
 238         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 239
 240         for (i = 0; i < qconf->n_rx_port; i++) {
 241
 242                 portid = qconf->rx_port_list[i];
 243                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 244                         portid);
 245
 246         }
 247
 248         while (!force_quit) {
 249
 250                 cur_tsc = rte_rdtsc();
 251
 252                 /*
 253                  * TX burst queue drain
 254                  */
 255                 diff_tsc = cur_tsc - prev_tsc;
 256                 if (unlikely(diff_tsc > drain_tsc)) {
 257
 258                         for (i = 0; i < qconf->n_rx_port; i++) {
 259
 260                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 261                                 buffer = tx_buffer[portid];
 262
 263                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 264                                 if (sent)
 265                                         port_statistics[portid].tx += sent;
 266
 267                         }
 268
 269                         /* if timer is enabled */
 270                         if (timer_period > 0) {
 271
 272                                 /* advance the timer */
 273                                 timer_tsc += diff_tsc;
 274
 275                                 /* if timer has reached its timeout */
 276                                 if (unlikely(timer_tsc >= timer_period)) {
 277
 278                                         /* do this only on master core */
 279                                         if (lcore_id == rte_get_master_lcore()) {
 280                                                 print_stats();
 281                                                 /* reset the timer */
 282                                                 timer_tsc = 0;
 283                                         }
 284                                 }
 285                         }
 286
 287                         prev_tsc = cur_tsc;
 288                 }
 289
 290                 /*
 291                  * Read packet from RX queues
 292                  */
 293                 for (i = 0; i < qconf->n_rx_port; i++) {
 294
 295                         portid = qconf->rx_port_list[i];
 296                         nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
 297                                                  pkts_burst, MAX_PKT_BURST);
 298
 299                         port_statistics[portid].rx += nb_rx;
 300
 301                         for (j = 0; j < nb_rx; j++) {
 302                                 m = pkts_burst[j];
 303                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 304                                 l2fwd_simple_forward(m, portid);
 305                         }
 306                 }
 307         }
 308 }
 309
 310 static int
 311 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 312 {
 313         l2fwd_main_loop();
 314         return 0;
 315 }
 316
 317 /* display usage */
 318 static void
 319 l2fwd_usage(const char *prgname)
 320 {
 321         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 322                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 323                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 324                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 325                prgname);
 326 }
 327
 328 static int
 329 l2fwd_parse_portmask(const char *portmask)
 330 {
 331         char *end = NULL;
 332         unsigned long pm;
 333
 334         /* parse hexadecimal string */
 335         pm = strtoul(portmask, &end, 16);
 336         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 337                 return -1;
 338
 339         if (pm == 0)
 340                 return -1;
 341
 342         return pm;
 343 }
 344
 345 static unsigned int
 346 l2fwd_parse_nqueue(const char *q_arg)
 347 {
 348         char *end = NULL;
 349         unsigned long n;
 350
 351         /* parse hexadecimal string */
 352         n = strtoul(q_arg, &end, 10);
 353         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 354                 return 0;
 355         if (n == 0)
 356                 return 0;
 357         if (n >= MAX_RX_QUEUE_PER_LCORE)
 358                 return 0;
 359
 360         return n;
 361 }
 362
 363 static int
 364 l2fwd_parse_timer_period(const char *q_arg)
 365 {
 366         char *end = NULL;
 367         int n;
 368
 369         /* parse number string */
 370         n = strtol(q_arg, &end, 10);
 371         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 372                 return -1;
 373         if (n >= MAX_TIMER_PERIOD)
 374                 return -1;
 375
 376         return n;
 377 }
 378
 379 /* Parse the argument given in the command line of the application */
 380 static int
 381 l2fwd_parse_args(int argc, char **argv)
 382 {
 383         int opt, ret, timer_secs;
 384         char **argvopt;
 385         int option_index;
 386         char *prgname = argv[0];
 387         static struct option lgopts[] = {
 388                 {NULL, 0, 0, 0}
 389         };
 390
 391         argvopt = argv;
 392
 393         while ((opt = getopt_long(argc, argvopt, "p:q:T:",
 394                                   lgopts, &option_index)) != EOF) {
 395
 396                 switch (opt) {
 397                 /* portmask */
 398                 case 'p':
 399                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 400                         if (l2fwd_enabled_port_mask == 0) {
 401                                 printf("invalid portmask\n");
 402                                 l2fwd_usage(prgname);
 403                                 return -1;
 404                         }
 405                         break;
 406
 407                 /* nqueue */
 408                 case 'q':
 409                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 410                         if (l2fwd_rx_queue_per_lcore == 0) {
 411                                 printf("invalid queue number\n");
 412                                 l2fwd_usage(prgname);
 413                                 return -1;
 414                         }
 415                         break;
 416
 417                 /* timer period */
 418                 case 'T':
 419                         timer_secs = l2fwd_parse_timer_period(optarg);
 420                         if (timer_secs < 0) {
 421                                 printf("invalid timer period\n");
 422                                 l2fwd_usage(prgname);
 423                                 return -1;
 424                         }
 425                         timer_period = timer_secs;
 426                         break;
 427
 428                 /* long options */
 429                 case 0:
 430                         l2fwd_usage(prgname);
 431                         return -1;
 432
 433                 default:
 434                         l2fwd_usage(prgname);
 435                         return -1;
 436                 }
 437         }
 438
 439         if (optind >= 0)
 440                 argv[optind-1] = prgname;
 441
 442         ret = optind-1;
 443         optind = 0; /* reset getopt lib */
 444         return ret;
 445 }
 446
 447 /* Check the link status of all ports in up to 9s, and print them finally */
 448 static void
 449 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 450 {
 451 #define CHECK_INTERVAL 100 /* 100ms */
 452 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 453         uint8_t portid, 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                 if (force_quit)
 460                         return;
 461                 all_ports_up = 1;
 462                 for (portid = 0; portid < port_num; portid++) {
 463                         if (force_quit)
 464                                 return;
 465                         if ((port_mask & (1 << portid)) == 0)
 466                                 continue;
 467                         memset(&link, 0, sizeof(link));
 468                         rte_eth_link_get_nowait(portid, &link);
 469                         /* print link status if flag set */
 470                         if (print_flag == 1) {
 471                                 if (link.link_status)
 472                                         printf("Port %d Link Up - speed %u "
 473                                                 "Mbps - %s\n", (uint8_t)portid,
 474                                                 (unsigned)link.link_speed,
 475                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 476                                         ("full-duplex") : ("half-duplex\n"));
 477                                 else
 478                                         printf("Port %d Link Down\n",
 479                                                 (uint8_t)portid);
 480                                 continue;
 481                         }
 482                         /* clear all_ports_up flag if any link down */
 483                         if (link.link_status == ETH_LINK_DOWN) {
 484                                 all_ports_up = 0;
 485                                 break;
 486                         }
 487                 }
 488                 /* after finally printing all link status, get out */
 489                 if (print_flag == 1)
 490                         break;
 491
 492                 if (all_ports_up == 0) {
 493                         printf(".");
 494                         fflush(stdout);
 495                         rte_delay_ms(CHECK_INTERVAL);
 496                 }
 497
 498                 /* set the print_flag if all ports up or timeout */
 499                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 500                         print_flag = 1;
 501                         printf("done\n");
 502                 }
 503         }
 504 }
 505
 506 static void
 507 signal_handler(int signum)
 508 {
 509         if (signum == SIGINT || signum == SIGTERM) {
 510                 printf("\n\nSignal %d received, preparing to exit...\n",
 511                                 signum);
 512                 force_quit = true;
 513         }
 514 }
 515
 516 int
 517 main(int argc, char **argv)
 518 {
 519         struct lcore_queue_conf *qconf;
 520         struct rte_eth_dev_info dev_info;
 521         int ret;
 522         uint8_t nb_ports;
 523         uint8_t nb_ports_available;
 524         uint8_t portid, last_port;
 525         unsigned lcore_id, rx_lcore_id;
 526         unsigned nb_ports_in_mask = 0;
 527
 528         /* init EAL */
 529         ret = rte_eal_init(argc, argv);
 530         if (ret < 0)
 531                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 532         argc -= ret;
 533         argv += ret;
 534
 535         force_quit = false;
 536         signal(SIGINT, signal_handler);
 537         signal(SIGTERM, signal_handler);
 538
 539         /* parse application arguments (after the EAL ones) */
 540         ret = l2fwd_parse_args(argc, argv);
 541         if (ret < 0)
 542                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 543
 544         /* convert to number of cycles */
 545         timer_period *= rte_get_timer_hz();
 546
 547         /* create the mbuf pool */
 548         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF,
 549                 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
 550                 rte_socket_id());
 551         if (l2fwd_pktmbuf_pool == NULL)
 552                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 553
 554         nb_ports = rte_eth_dev_count();
 555         if (nb_ports == 0)
 556                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 557
 558         /* reset l2fwd_dst_ports */
 559         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 560                 l2fwd_dst_ports[portid] = 0;
 561         last_port = 0;
 562
 563         /*
 564          * Each logical core is assigned a dedicated TX queue on each port.
 565          */
 566         for (portid = 0; portid < nb_ports; portid++) {
 567                 /* skip ports that are not enabled */
 568                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 569                         continue;
 570
 571                 if (nb_ports_in_mask % 2) {
 572                         l2fwd_dst_ports[portid] = last_port;
 573                         l2fwd_dst_ports[last_port] = portid;
 574                 }
 575                 else
 576                         last_port = portid;
 577
 578                 nb_ports_in_mask++;
 579
 580                 rte_eth_dev_info_get(portid, &dev_info);
 581         }
 582         if (nb_ports_in_mask % 2) {
 583                 printf("Notice: odd number of ports in portmask.\n");
 584                 l2fwd_dst_ports[last_port] = last_port;
 585         }
 586
 587         rx_lcore_id = 0;
 588         qconf = NULL;
 589
 590         /* Initialize the port/queue configuration of each logical core */
 591         for (portid = 0; portid < nb_ports; portid++) {
 592                 /* skip ports that are not enabled */
 593                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 594                         continue;
 595
 596                 /* get the lcore_id for this port */
 597                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 598                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 599                        l2fwd_rx_queue_per_lcore) {
 600                         rx_lcore_id++;
 601                         if (rx_lcore_id >= RTE_MAX_LCORE)
 602                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 603                 }
 604
 605                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 606                         /* Assigned a new logical core in the loop above. */
 607                         qconf = &lcore_queue_conf[rx_lcore_id];
 608
 609                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 610                 qconf->n_rx_port++;
 611                 printf("Lcore %u: RX port %u\n", rx_lcore_id, (unsigned) portid);
 612         }
 613
 614         nb_ports_available = nb_ports;
 615
 616         /* Initialise each port */
 617         for (portid = 0; portid < nb_ports; portid++) {
 618                 /* skip ports that are not enabled */
 619                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 620                         printf("Skipping disabled port %u\n", (unsigned) portid);
 621                         nb_ports_available--;
 622                         continue;
 623                 }
 624                 /* init port */
 625                 printf("Initializing port %u... ", (unsigned) portid);
 626                 fflush(stdout);
 627                 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
 628                 if (ret < 0)
 629                         rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
 630                                   ret, (unsigned) portid);
 631
 632                 rte_eth_macaddr_get(portid,&l2fwd_ports_eth_addr[portid]);
 633
 634                 /* init one RX queue */
 635                 fflush(stdout);
 636                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 637                                              rte_eth_dev_socket_id(portid),
 638                                              NULL,
 639                                              l2fwd_pktmbuf_pool);
 640                 if (ret < 0)
 641                         rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 642                                   ret, (unsigned) portid);
 643
 644                 /* init one TX queue on each port */
 645                 fflush(stdout);
 646                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 647                                 rte_eth_dev_socket_id(portid),
 648                                 NULL);
 649                 if (ret < 0)
 650                         rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 651                                 ret, (unsigned) portid);
 652
 653                 /* Initialize TX buffers */
 654                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 655                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 656                                 rte_eth_dev_socket_id(portid));
 657                 if (tx_buffer[portid] == NULL)
 658                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 659                                         (unsigned) portid);
 660
 661                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 662
 663                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 664                                 rte_eth_tx_buffer_count_callback,
 665                                 &port_statistics[portid].dropped);
 666                 if (ret < 0)
 667                                 rte_exit(EXIT_FAILURE, "Cannot set error callback for "
 668                                                 "tx buffer on port %u\n", (unsigned) portid);
 669
 670                 /* Start device */
 671                 ret = rte_eth_dev_start(portid);
 672                 if (ret < 0)
 673                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
 674                                   ret, (unsigned) portid);
 675
 676                 printf("done: \n");
 677
 678                 rte_eth_promiscuous_enable(portid);
 679
 680                 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
 681                                 (unsigned) portid,
 682                                 l2fwd_ports_eth_addr[portid].addr_bytes[0],
 683                                 l2fwd_ports_eth_addr[portid].addr_bytes[1],
 684                                 l2fwd_ports_eth_addr[portid].addr_bytes[2],
 685                                 l2fwd_ports_eth_addr[portid].addr_bytes[3],
 686                                 l2fwd_ports_eth_addr[portid].addr_bytes[4],
 687                                 l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 688
 689                 /* initialize port stats */
 690                 memset(&port_statistics, 0, sizeof(port_statistics));
 691         }
 692
 693         if (!nb_ports_available) {
 694                 rte_exit(EXIT_FAILURE,
 695                         "All available ports are disabled. Please set portmask.\n");
 696         }
 697
 698         check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
 699
 700         ret = 0;
 701         /* launch per-lcore init on every lcore */
 702         rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER);
 703         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 704                 if (rte_eal_wait_lcore(lcore_id) < 0) {
 705                         ret = -1;
 706                         break;
 707                 }
 708         }
 709
 710         for (portid = 0; portid < nb_ports; portid++) {
 711                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 712                         continue;
 713                 printf("Closing port %d...", portid);
 714                 rte_eth_dev_stop(portid);
 715                 rte_eth_dev_close(portid);
 716                 printf(" Done\n");
 717         }
 718         printf("Bye...\n");
 719
 720         return ret;
 721 }