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_PER_PORT 3000
  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(__rte_unused struct rte_timer *ptr_timer,
 121         __rte_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         fflush(stdout);
 165 }
 166
 167 static void
 168 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 169 {
 170         struct rte_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 rte_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         rte_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(__rte_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 0;
 311
 312         return pm;
 313 }
 314
 315 static unsigned int
 316 l2fwd_parse_nqueue(const char *q_arg)
 317 {
 318         char *end = NULL;
 319         unsigned long n;
 320
 321         /* parse hexadecimal string */
 322         n = strtoul(q_arg, &end, 10);
 323         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 324                 return 0;
 325         if (n == 0)
 326                 return 0;
 327         if (n >= MAX_RX_QUEUE_PER_LCORE)
 328                 return 0;
 329
 330         return n;
 331 }
 332
 333 static int
 334 l2fwd_parse_timer_period(const char *q_arg)
 335 {
 336         char *end = NULL;
 337         int n;
 338
 339         /* parse number string */
 340         n = strtol(q_arg, &end, 10);
 341         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 342                 return -1;
 343         if (n >= MAX_TIMER_PERIOD)
 344                 return -1;
 345
 346         return n;
 347 }
 348
 349 static int
 350 l2fwd_parse_check_period(const char *q_arg)
 351 {
 352         char *end = NULL;
 353         int n;
 354
 355         /* parse number string */
 356         n = strtol(q_arg, &end, 10);
 357         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 358                 return -1;
 359         if (n >= MAX_TIMER_PERIOD)
 360                 return -1;
 361
 362         return n;
 363 }
 364
 365 /* Parse the argument given in the command line of the application */
 366 static int
 367 l2fwd_parse_args(int argc, char **argv)
 368 {
 369         int opt, ret;
 370         char **argvopt;
 371         int option_index;
 372         char *prgname = argv[0];
 373         static struct option lgopts[] = {
 374                 {NULL, 0, 0, 0}
 375         };
 376
 377         argvopt = argv;
 378
 379         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 380                                   lgopts, &option_index)) != EOF) {
 381
 382                 switch (opt) {
 383                 /* portmask */
 384                 case 'p':
 385                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 386                         if (l2fwd_enabled_port_mask == 0) {
 387                                 printf("invalid portmask\n");
 388                                 l2fwd_usage(prgname);
 389                                 return -1;
 390                         }
 391                         break;
 392
 393                 /* nqueue */
 394                 case 'q':
 395                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 396                         if (l2fwd_rx_queue_per_lcore == 0) {
 397                                 printf("invalid queue number\n");
 398                                 l2fwd_usage(prgname);
 399                                 return -1;
 400                         }
 401                         break;
 402
 403                 /* timer period */
 404                 case 'T':
 405                         timer_period = l2fwd_parse_timer_period(optarg)
 406                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 407                         if (timer_period < 0) {
 408                                 printf("invalid timer period\n");
 409                                 l2fwd_usage(prgname);
 410                                 return -1;
 411                         }
 412                         break;
 413
 414                 /* Check period */
 415                 case 'K':
 416                         check_period = l2fwd_parse_check_period(optarg);
 417                         if (check_period < 0) {
 418                                 printf("invalid check period\n");
 419                                 l2fwd_usage(prgname);
 420                                 return -1;
 421                         }
 422                         break;
 423
 424                 /* long options */
 425                 case 0:
 426                         l2fwd_usage(prgname);
 427                         return -1;
 428
 429                 default:
 430                         l2fwd_usage(prgname);
 431                         return -1;
 432                 }
 433         }
 434
 435         if (optind >= 0)
 436                 argv[optind-1] = prgname;
 437
 438         ret = optind-1;
 439         optind = 1; /* reset getopt lib */
 440         return ret;
 441 }
 442
 443 /* Check the link status of all ports in up to 9s, and print them finally */
 444 static void
 445 check_all_ports_link_status(uint32_t port_mask)
 446 {
 447 #define CHECK_INTERVAL 100 /* 100ms */
 448 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 449         uint16_t portid;
 450         uint8_t count, all_ports_up, print_flag = 0;
 451         struct rte_eth_link link;
 452         int ret;
 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                         ret = rte_eth_link_get_nowait(portid, &link);
 463                         if (ret < 0) {
 464                                 all_ports_up = 0;
 465                                 if (print_flag == 1)
 466                                         printf("Port %u link get failed: %s\n",
 467                                                 portid, rte_strerror(-ret));
 468                                 continue;
 469                         }
 470                         /* print link status if flag set */
 471                         if (print_flag == 1) {
 472                                 if (link.link_status)
 473                                         printf(
 474                                         "Port%d Link Up. Speed %u Mbps - %s\n",
 475                                                 portid, link.link_speed,
 476                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 477                                         ("full-duplex") : ("half-duplex"));
 478                                 else
 479                                         printf("Port %d Link Down\n", 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 dead_core(__rte_unused void *ptr_data, const int id_core)
 508 {
 509         if (terminate_signal_received)
 510                 return;
 511         printf("Dead core %i - restarting..\n", id_core);
 512         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 513                 rte_eal_wait_lcore(id_core);
 514                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 515         } else {
 516                 printf("..false positive!\n");
 517         }
 518 }
 519
 520 static void
 521 relay_core_state(void *ptr_data, const int id_core,
 522         const enum rte_keepalive_state core_state, uint64_t last_alive)
 523 {
 524         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 525                 id_core, core_state, last_alive);
 526 }
 527
 528 int
 529 main(int argc, char **argv)
 530 {
 531         struct lcore_queue_conf *qconf;
 532         int ret;
 533         uint16_t nb_ports;
 534         uint16_t nb_ports_available = 0;
 535         uint16_t portid, last_port;
 536         unsigned lcore_id, rx_lcore_id;
 537         unsigned nb_ports_in_mask = 0;
 538         unsigned int total_nb_mbufs;
 539         struct sigaction signal_handler;
 540         struct rte_keepalive_shm *ka_shm;
 541
 542         memset(&signal_handler, 0, sizeof(signal_handler));
 543         terminate_signal_received = 0;
 544         signal_handler.sa_handler = &handle_sigterm;
 545         if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
 546                         sigaction(SIGTERM, &signal_handler, NULL) == -1)
 547                 rte_exit(EXIT_FAILURE, "SIGNAL\n");
 548
 549
 550         /* init EAL */
 551         ret = rte_eal_init(argc, argv);
 552         if (ret < 0)
 553                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 554         argc -= ret;
 555         argv += ret;
 556
 557         l2fwd_enabled_port_mask = 0;
 558
 559         /* parse application arguments (after the EAL ones) */
 560         ret = l2fwd_parse_args(argc, argv);
 561         if (ret < 0)
 562                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 563
 564         nb_ports = rte_eth_dev_count_avail();
 565         if (nb_ports == 0)
 566                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 567
 568         /* create the mbuf pool */
 569         total_nb_mbufs = NB_MBUF_PER_PORT * nb_ports;
 570
 571         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",
 572                 total_nb_mbufs, 32, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
 573                 rte_socket_id());
 574         if (l2fwd_pktmbuf_pool == NULL)
 575                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 576
 577         /* reset l2fwd_dst_ports */
 578         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 579                 l2fwd_dst_ports[portid] = 0;
 580         last_port = 0;
 581
 582         /*
 583          * Each logical core is assigned a dedicated TX queue on each port.
 584          */
 585         RTE_ETH_FOREACH_DEV(portid) {
 586                 /* skip ports that are not enabled */
 587                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 588                         continue;
 589
 590                 if (nb_ports_in_mask % 2) {
 591                         l2fwd_dst_ports[portid] = last_port;
 592                         l2fwd_dst_ports[last_port] = portid;
 593                 } else
 594                         last_port = portid;
 595
 596                 nb_ports_in_mask++;
 597         }
 598         if (nb_ports_in_mask % 2) {
 599                 printf("Notice: odd number of ports in portmask.\n");
 600                 l2fwd_dst_ports[last_port] = last_port;
 601         }
 602
 603         rx_lcore_id = 1;
 604         qconf = NULL;
 605
 606         /* Initialize the port/queue configuration of each logical core */
 607         RTE_ETH_FOREACH_DEV(portid) {
 608                 /* skip ports that are not enabled */
 609                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 610                         continue;
 611
 612                 /* get the lcore_id for this port */
 613                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 614                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 615                        l2fwd_rx_queue_per_lcore) {
 616                         rx_lcore_id++;
 617                         if (rx_lcore_id >= RTE_MAX_LCORE)
 618                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 619                 }
 620
 621                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 622                         /* Assigned a new logical core in the loop above. */
 623                         qconf = &lcore_queue_conf[rx_lcore_id];
 624
 625                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 626                 qconf->n_rx_port++;
 627                 printf("Lcore %u: RX port %u\n",
 628                         rx_lcore_id, portid);
 629         }
 630
 631         /* Initialise each port */
 632         RTE_ETH_FOREACH_DEV(portid) {
 633                 struct rte_eth_dev_info dev_info;
 634                 struct rte_eth_rxconf rxq_conf;
 635                 struct rte_eth_txconf txq_conf;
 636                 struct rte_eth_conf local_port_conf = port_conf;
 637
 638                 /* skip ports that are not enabled */
 639                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 640                         printf("Skipping disabled port %u\n", portid);
 641                         continue;
 642                 }
 643                 nb_ports_available++;
 644
 645                 /* init port */
 646                 printf("Initializing port %u... ", portid);
 647                 fflush(stdout);
 648
 649                 ret = rte_eth_dev_info_get(portid, &dev_info);
 650                 if (ret != 0)
 651                         rte_exit(EXIT_FAILURE,
 652                                 "Error during getting device (port %u) info: %s\n",
 653                                 portid, strerror(-ret));
 654
 655                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 656                         local_port_conf.txmode.offloads |=
 657                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 658                 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
 659                 if (ret < 0)
 660                         rte_exit(EXIT_FAILURE,
 661                                 "Cannot configure device: err=%d, port=%u\n",
 662                                 ret, portid);
 663
 664                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 665                                                        &nb_txd);
 666                 if (ret < 0)
 667                         rte_exit(EXIT_FAILURE,
 668                                 "Cannot adjust number of descriptors: err=%d, port=%u\n",
 669                                 ret, portid);
 670
 671                 ret = rte_eth_macaddr_get(portid,
 672                                           &l2fwd_ports_eth_addr[portid]);
 673                 if (ret < 0)
 674                         rte_exit(EXIT_FAILURE,
 675                                 "Cannot mac address: err=%d, port=%u\n",
 676                                 ret, portid);
 677
 678                 /* init one RX queue */
 679                 fflush(stdout);
 680                 rxq_conf = dev_info.default_rxconf;
 681                 rxq_conf.offloads = local_port_conf.rxmode.offloads;
 682                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 683                                              rte_eth_dev_socket_id(portid),
 684                                              &rxq_conf,
 685                                              l2fwd_pktmbuf_pool);
 686                 if (ret < 0)
 687                         rte_exit(EXIT_FAILURE,
 688                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 689                                 ret, portid);
 690
 691                 /* init one TX queue on each port */
 692                 fflush(stdout);
 693                 txq_conf = dev_info.default_txconf;
 694                 txq_conf.offloads = local_port_conf.txmode.offloads;
 695                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 696                                 rte_eth_dev_socket_id(portid),
 697                                 &txq_conf);
 698                 if (ret < 0)
 699                         rte_exit(EXIT_FAILURE,
 700                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 701                                 ret, portid);
 702
 703                 /* Initialize TX buffers */
 704                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 705                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 706                                 rte_eth_dev_socket_id(portid));
 707                 if (tx_buffer[portid] == NULL)
 708                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 709                                                 portid);
 710
 711                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 712
 713                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 714                                 rte_eth_tx_buffer_count_callback,
 715                                 &port_statistics[portid].dropped);
 716                 if (ret < 0)
 717                         rte_exit(EXIT_FAILURE,
 718                         "Cannot set error callback for tx buffer on port %u\n",
 719                                  portid);
 720
 721                 /* Start device */
 722                 ret = rte_eth_dev_start(portid);
 723                 if (ret < 0)
 724                         rte_exit(EXIT_FAILURE,
 725                                 "rte_eth_dev_start:err=%d, port=%u\n",
 726                                   ret, portid);
 727
 728                 ret = rte_eth_promiscuous_enable(portid);
 729                 if (ret != 0)
 730                         rte_exit(EXIT_FAILURE,
 731                                  "rte_eth_promiscuous_enable:err=%s, port=%u\n",
 732                                  rte_strerror(-ret), portid);
 733
 734                 printf("Port %u, MAC address: "
 735                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 736                         portid,
 737                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 738                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 739                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 740                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 741                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 742                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 743
 744                 /* initialize port stats */
 745                 memset(&port_statistics, 0, sizeof(port_statistics));
 746         }
 747
 748         if (!nb_ports_available) {
 749                 rte_exit(EXIT_FAILURE,
 750                         "All available ports are disabled. Please set portmask.\n");
 751         }
 752
 753         check_all_ports_link_status(l2fwd_enabled_port_mask);
 754
 755         struct rte_timer hb_timer, stats_timer;
 756
 757         rte_timer_subsystem_init();
 758         rte_timer_init(&stats_timer);
 759
 760         ka_shm = NULL;
 761         if (check_period > 0) {
 762                 ka_shm = rte_keepalive_shm_create();
 763                 if (ka_shm == NULL)
 764                         rte_exit(EXIT_FAILURE,
 765                                 "rte_keepalive_shm_create() failed");
 766                 rte_global_keepalive_info =
 767                         rte_keepalive_create(&dead_core, ka_shm);
 768                 if (rte_global_keepalive_info == NULL)
 769                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 770                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 771                         relay_core_state, ka_shm);
 772                 rte_timer_init(&hb_timer);
 773                 if (rte_timer_reset(&hb_timer,
 774                                 (check_period * rte_get_timer_hz()) / 1000,
 775                                 PERIODICAL,
 776                                 rte_lcore_id(),
 777                                 (void(*)(struct rte_timer*, void*))
 778                                 &rte_keepalive_dispatch_pings,
 779                                 rte_global_keepalive_info
 780                                 ) != 0 )
 781                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 782         }
 783         if (timer_period > 0) {
 784                 if (rte_timer_reset(&stats_timer,
 785                                 (timer_period * rte_get_timer_hz()) / 1000,
 786                                 PERIODICAL,
 787                                 rte_lcore_id(),
 788                                 &print_stats, NULL
 789                                 ) != 0 )
 790                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 791         }
 792         /* launch per-lcore init on every slave lcore */
 793         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 794                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 795
 796                 if (qconf->n_rx_port == 0)
 797                         RTE_LOG(INFO, L2FWD,
 798                                 "lcore %u has nothing to do\n",
 799                                 lcore_id
 800                                 );
 801                 else {
 802                         rte_eal_remote_launch(
 803                                 l2fwd_launch_one_lcore,
 804                                 NULL,
 805                                 lcore_id
 806                                 );
 807                         rte_keepalive_register_core(rte_global_keepalive_info,
 808                                 lcore_id);
 809                 }
 810         }
 811         while (!terminate_signal_received) {
 812                 rte_timer_manage();
 813                 rte_delay_ms(5);
 814                 }
 815
 816         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 817                 if (rte_eal_wait_lcore(lcore_id) < 0)
 818                         return -1;
 819         }
 820
 821         if (ka_shm != NULL)
 822                 rte_keepalive_shm_cleanup(ka_shm);
 823         return 0;
 824 }