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_cycles.h>
  28 #include <rte_prefetch.h>
  29 #include <rte_lcore.h>
  30 #include <rte_per_lcore.h>
  31 #include <rte_branch_prediction.h>
  32 #include <rte_interrupts.h>
  33 #include <rte_random.h>
  34 #include <rte_debug.h>
  35 #include <rte_ether.h>
  36 #include <rte_ethdev.h>
  37 #include <rte_mempool.h>
  38 #include <rte_mbuf.h>
  39 #include <rte_timer.h>
  40 #include <rte_keepalive.h>
  41
  42 #include "shm.h"
  43
  44 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
  45
  46 #define NB_MBUF_PER_PORT 3000
  47
  48 #define MAX_PKT_BURST 32
  49 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
  50
  51 /*
  52  * Configurable number of RX/TX ring descriptors
  53  */
  54 #define RTE_TEST_RX_DESC_DEFAULT 1024
  55 #define RTE_TEST_TX_DESC_DEFAULT 1024
  56 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  57 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  58
  59 /* ethernet addresses of ports */
  60 static struct rte_ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
  61
  62 /* mask of enabled ports */
  63 static uint32_t l2fwd_enabled_port_mask;
  64
  65 /* list of enabled ports */
  66 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
  67
  68 static unsigned int l2fwd_rx_queue_per_lcore = 1;
  69
  70 #define MAX_RX_QUEUE_PER_LCORE 16
  71 #define MAX_TX_QUEUE_PER_PORT 16
  72 struct lcore_queue_conf {
  73         unsigned n_rx_port;
  74         unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
  75 } __rte_cache_aligned;
  76 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
  77
  78 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
  79
  80 static struct rte_eth_conf port_conf = {
  81         .rxmode = {
  82                 .split_hdr_size = 0,
  83         },
  84         .txmode = {
  85                 .mq_mode = RTE_ETH_MQ_TX_NONE,
  86         },
  87 };
  88
  89 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
  90
  91 /* Per-port statistics struct */
  92 struct l2fwd_port_statistics {
  93         uint64_t tx;
  94         uint64_t rx;
  95         uint64_t dropped;
  96 } __rte_cache_aligned;
  97 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
  98
  99 /* A tsc-based timer responsible for triggering statistics printout */
 100 #define TIMER_MILLISECOND 1
 101 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 102 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
 103 static int64_t check_period = 5; /* default check cycle is 5ms */
 104
 105 /* Keepalive structure */
 106 struct rte_keepalive *rte_global_keepalive_info;
 107
 108 /* Termination signalling */
 109 static int terminate_signal_received;
 110
 111 /* Termination signal handler */
 112 static void handle_sigterm(__rte_unused int value)
 113 {
 114         terminate_signal_received = 1;
 115 }
 116
 117 /* Print out statistics on packets dropped */
 118 static void
 119 print_stats(__rte_unused struct rte_timer *ptr_timer,
 120         __rte_unused void *ptr_data)
 121 {
 122         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 123         uint16_t portid;
 124
 125         total_packets_dropped = 0;
 126         total_packets_tx = 0;
 127         total_packets_rx = 0;
 128
 129         const char clr[] = { 27, '[', '2', 'J', '\0' };
 130         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 131
 132                 /* Clear screen and move to top left */
 133         printf("%s%s", clr, topLeft);
 134
 135         printf("\nPort statistics ====================================");
 136
 137         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 138                 /* skip disabled ports */
 139                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 140                         continue;
 141                 printf("\nStatistics for port %u ------------------------------"
 142                            "\nPackets sent: %24"PRIu64
 143                            "\nPackets received: %20"PRIu64
 144                            "\nPackets dropped: %21"PRIu64,
 145                            portid,
 146                            port_statistics[portid].tx,
 147                            port_statistics[portid].rx,
 148                            port_statistics[portid].dropped);
 149
 150                 total_packets_dropped += port_statistics[portid].dropped;
 151                 total_packets_tx += port_statistics[portid].tx;
 152                 total_packets_rx += port_statistics[portid].rx;
 153         }
 154         printf("\nAggregate statistics ==============================="
 155                    "\nTotal packets sent: %18"PRIu64
 156                    "\nTotal packets received: %14"PRIu64
 157                    "\nTotal packets dropped: %15"PRIu64,
 158                    total_packets_tx,
 159                    total_packets_rx,
 160                    total_packets_dropped);
 161         printf("\n====================================================\n");
 162
 163         fflush(stdout);
 164 }
 165
 166 static void
 167 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 168 {
 169         struct rte_ether_hdr *eth;
 170         void *tmp;
 171         int sent;
 172         unsigned dst_port;
 173         struct rte_eth_dev_tx_buffer *buffer;
 174
 175         dst_port = l2fwd_dst_ports[portid];
 176         eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
 177
 178         /* 02:00:00:00:00:xx */
 179         tmp = &eth->dst_addr.addr_bytes[0];
 180         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 181
 182         /* src addr */
 183         rte_ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->src_addr);
 184
 185         buffer = tx_buffer[dst_port];
 186         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 187         if (sent)
 188                 port_statistics[dst_port].tx += sent;
 189 }
 190
 191 /* main processing loop */
 192 static void
 193 l2fwd_main_loop(void)
 194 {
 195         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 196         struct rte_mbuf *m;
 197         int sent;
 198         unsigned lcore_id;
 199         uint64_t prev_tsc, diff_tsc, cur_tsc;
 200         unsigned i, j, portid, nb_rx;
 201         struct lcore_queue_conf *qconf;
 202         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 203                 / US_PER_S * BURST_TX_DRAIN_US;
 204         struct rte_eth_dev_tx_buffer *buffer;
 205
 206         prev_tsc = 0;
 207
 208         lcore_id = rte_lcore_id();
 209         qconf = &lcore_queue_conf[lcore_id];
 210
 211         if (qconf->n_rx_port == 0) {
 212                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 213                 return;
 214         }
 215
 216         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 217
 218         for (i = 0; i < qconf->n_rx_port; i++) {
 219
 220                 portid = qconf->rx_port_list[i];
 221                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 222                         portid);
 223         }
 224
 225         uint64_t tsc_initial = rte_rdtsc();
 226         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 227
 228         while (!terminate_signal_received) {
 229                 /* Keepalive heartbeat. 8< */
 230                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 231
 232                 cur_tsc = rte_rdtsc();
 233
 234                 /*
 235                  * Die randomly within 7 secs for demo purposes if
 236                  * keepalive enabled
 237                  */
 238                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 239                         break;
 240                 /* >8 End of keepalive heartbeat. */
 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         char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
 454
 455         printf("\nChecking link status");
 456         fflush(stdout);
 457         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 458                 all_ports_up = 1;
 459                 RTE_ETH_FOREACH_DEV(portid) {
 460                         if ((port_mask & (1 << portid)) == 0)
 461                                 continue;
 462                         memset(&link, 0, sizeof(link));
 463                         ret = rte_eth_link_get_nowait(portid, &link);
 464                         if (ret < 0) {
 465                                 all_ports_up = 0;
 466                                 if (print_flag == 1)
 467                                         printf("Port %u link get failed: %s\n",
 468                                                 portid, rte_strerror(-ret));
 469                                 continue;
 470                         }
 471                         /* print link status if flag set */
 472                         if (print_flag == 1) {
 473                                 rte_eth_link_to_str(link_status_text,
 474                                         sizeof(link_status_text), &link);
 475                                 printf("Port %d %s\n", portid,
 476                                        link_status_text);
 477                                 continue;
 478                         }
 479                         /* clear all_ports_up flag if any link down */
 480                         if (link.link_status == RTE_ETH_LINK_DOWN) {
 481                                 all_ports_up = 0;
 482                                 break;
 483                         }
 484                 }
 485                 /* after finally printing all link status, get out */
 486                 if (print_flag == 1)
 487                         break;
 488
 489                 if (all_ports_up == 0) {
 490                         printf(".");
 491                         fflush(stdout);
 492                         rte_delay_ms(CHECK_INTERVAL);
 493                 }
 494
 495                 /* set the print_flag if all ports up or timeout */
 496                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 497                         print_flag = 1;
 498                         printf("done\n");
 499                 }
 500         }
 501 }
 502
 503 static void
 504 dead_core(__rte_unused void *ptr_data, const int id_core)
 505 {
 506         if (terminate_signal_received)
 507                 return;
 508         printf("Dead core %i - restarting..\n", id_core);
 509         if (rte_eal_get_lcore_state(id_core) == WAIT) {
 510                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 511         } else {
 512                 printf("..false positive!\n");
 513         }
 514 }
 515
 516 static void
 517 relay_core_state(void *ptr_data, const int id_core,
 518         const enum rte_keepalive_state core_state, uint64_t last_alive)
 519 {
 520         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 521                 id_core, core_state, last_alive);
 522 }
 523
 524 int
 525 main(int argc, char **argv)
 526 {
 527         struct lcore_queue_conf *qconf;
 528         int ret;
 529         uint16_t nb_ports;
 530         uint16_t nb_ports_available = 0;
 531         uint16_t portid, last_port;
 532         unsigned lcore_id, rx_lcore_id;
 533         unsigned nb_ports_in_mask = 0;
 534         unsigned int total_nb_mbufs;
 535         struct sigaction signal_handler;
 536         struct rte_keepalive_shm *ka_shm;
 537
 538         memset(&signal_handler, 0, sizeof(signal_handler));
 539         terminate_signal_received = 0;
 540         signal_handler.sa_handler = &handle_sigterm;
 541         if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
 542                         sigaction(SIGTERM, &signal_handler, NULL) == -1)
 543                 rte_exit(EXIT_FAILURE, "SIGNAL\n");
 544
 545
 546         /* init EAL */
 547         ret = rte_eal_init(argc, argv);
 548         if (ret < 0)
 549                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 550         argc -= ret;
 551         argv += ret;
 552
 553         l2fwd_enabled_port_mask = 0;
 554
 555         /* parse application arguments (after the EAL ones) */
 556         ret = l2fwd_parse_args(argc, argv);
 557         if (ret < 0)
 558                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 559
 560         nb_ports = rte_eth_dev_count_avail();
 561         if (nb_ports == 0)
 562                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 563
 564         /* create the mbuf pool */
 565         total_nb_mbufs = NB_MBUF_PER_PORT * nb_ports;
 566
 567         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",
 568                 total_nb_mbufs, 32, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
 569                 rte_socket_id());
 570         if (l2fwd_pktmbuf_pool == NULL)
 571                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 572
 573         /* reset l2fwd_dst_ports */
 574         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 575                 l2fwd_dst_ports[portid] = 0;
 576         last_port = 0;
 577
 578         /*
 579          * Each logical core is assigned a dedicated TX queue on each port.
 580          */
 581         RTE_ETH_FOREACH_DEV(portid) {
 582                 /* skip ports that are not enabled */
 583                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 584                         continue;
 585
 586                 if (nb_ports_in_mask % 2) {
 587                         l2fwd_dst_ports[portid] = last_port;
 588                         l2fwd_dst_ports[last_port] = portid;
 589                 } else
 590                         last_port = portid;
 591
 592                 nb_ports_in_mask++;
 593         }
 594         if (nb_ports_in_mask % 2) {
 595                 printf("Notice: odd number of ports in portmask.\n");
 596                 l2fwd_dst_ports[last_port] = last_port;
 597         }
 598
 599         rx_lcore_id = 1;
 600         qconf = NULL;
 601
 602         /* Initialize the port/queue configuration of each logical core */
 603         RTE_ETH_FOREACH_DEV(portid) {
 604                 /* skip ports that are not enabled */
 605                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 606                         continue;
 607
 608                 /* get the lcore_id for this port */
 609                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 610                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 611                        l2fwd_rx_queue_per_lcore) {
 612                         rx_lcore_id++;
 613                         if (rx_lcore_id >= RTE_MAX_LCORE)
 614                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 615                 }
 616
 617                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 618                         /* Assigned a new logical core in the loop above. */
 619                         qconf = &lcore_queue_conf[rx_lcore_id];
 620
 621                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 622                 qconf->n_rx_port++;
 623                 printf("Lcore %u: RX port %u\n",
 624                         rx_lcore_id, portid);
 625         }
 626
 627         /* Initialise each port */
 628         RTE_ETH_FOREACH_DEV(portid) {
 629                 struct rte_eth_dev_info dev_info;
 630                 struct rte_eth_rxconf rxq_conf;
 631                 struct rte_eth_txconf txq_conf;
 632                 struct rte_eth_conf local_port_conf = port_conf;
 633
 634                 /* skip ports that are not enabled */
 635                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 636                         printf("Skipping disabled port %u\n", portid);
 637                         continue;
 638                 }
 639                 nb_ports_available++;
 640
 641                 /* init port */
 642                 printf("Initializing port %u... ", portid);
 643                 fflush(stdout);
 644
 645                 ret = rte_eth_dev_info_get(portid, &dev_info);
 646                 if (ret != 0)
 647                         rte_exit(EXIT_FAILURE,
 648                                 "Error during getting device (port %u) info: %s\n",
 649                                 portid, strerror(-ret));
 650
 651                 if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE)
 652                         local_port_conf.txmode.offloads |=
 653                                 RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;
 654                 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
 655                 if (ret < 0)
 656                         rte_exit(EXIT_FAILURE,
 657                                 "Cannot configure device: err=%d, port=%u\n",
 658                                 ret, portid);
 659
 660                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 661                                                        &nb_txd);
 662                 if (ret < 0)
 663                         rte_exit(EXIT_FAILURE,
 664                                 "Cannot adjust number of descriptors: err=%d, port=%u\n",
 665                                 ret, portid);
 666
 667                 ret = rte_eth_macaddr_get(portid,
 668                                           &l2fwd_ports_eth_addr[portid]);
 669                 if (ret < 0)
 670                         rte_exit(EXIT_FAILURE,
 671                                 "Cannot mac address: err=%d, port=%u\n",
 672                                 ret, portid);
 673
 674                 /* init one RX queue */
 675                 fflush(stdout);
 676                 rxq_conf = dev_info.default_rxconf;
 677                 rxq_conf.offloads = local_port_conf.rxmode.offloads;
 678                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 679                                              rte_eth_dev_socket_id(portid),
 680                                              &rxq_conf,
 681                                              l2fwd_pktmbuf_pool);
 682                 if (ret < 0)
 683                         rte_exit(EXIT_FAILURE,
 684                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 685                                 ret, portid);
 686
 687                 /* init one TX queue on each port */
 688                 fflush(stdout);
 689                 txq_conf = dev_info.default_txconf;
 690                 txq_conf.offloads = local_port_conf.txmode.offloads;
 691                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 692                                 rte_eth_dev_socket_id(portid),
 693                                 &txq_conf);
 694                 if (ret < 0)
 695                         rte_exit(EXIT_FAILURE,
 696                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 697                                 ret, portid);
 698
 699                 /* Initialize TX buffers */
 700                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 701                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 702                                 rte_eth_dev_socket_id(portid));
 703                 if (tx_buffer[portid] == NULL)
 704                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 705                                                 portid);
 706
 707                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 708
 709                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 710                                 rte_eth_tx_buffer_count_callback,
 711                                 &port_statistics[portid].dropped);
 712                 if (ret < 0)
 713                         rte_exit(EXIT_FAILURE,
 714                         "Cannot set error callback for tx buffer on port %u\n",
 715                                  portid);
 716
 717                 /* Start device */
 718                 ret = rte_eth_dev_start(portid);
 719                 if (ret < 0)
 720                         rte_exit(EXIT_FAILURE,
 721                                 "rte_eth_dev_start:err=%d, port=%u\n",
 722                                   ret, portid);
 723
 724                 ret = rte_eth_promiscuous_enable(portid);
 725                 if (ret != 0)
 726                         rte_exit(EXIT_FAILURE,
 727                                  "rte_eth_promiscuous_enable:err=%s, port=%u\n",
 728                                  rte_strerror(-ret), portid);
 729
 730                 printf("Port %u, MAC address: "
 731                         RTE_ETHER_ADDR_PRT_FMT "\n\n",
 732                         portid,
 733                         RTE_ETHER_ADDR_BYTES(&l2fwd_ports_eth_addr[portid]));
 734
 735                 /* initialize port stats */
 736                 memset(&port_statistics, 0, sizeof(port_statistics));
 737         }
 738
 739         if (!nb_ports_available) {
 740                 rte_exit(EXIT_FAILURE,
 741                         "All available ports are disabled. Please set portmask.\n");
 742         }
 743
 744         check_all_ports_link_status(l2fwd_enabled_port_mask);
 745
 746         struct rte_timer hb_timer, stats_timer;
 747
 748         rte_timer_subsystem_init();
 749         rte_timer_init(&stats_timer);
 750
 751         ka_shm = NULL;
 752         if (check_period > 0) {
 753                 ka_shm = rte_keepalive_shm_create();
 754                 if (ka_shm == NULL)
 755                         rte_exit(EXIT_FAILURE,
 756                                 "rte_keepalive_shm_create() failed");
 757                 /* Initialize keepalive functionality. 8< */
 758                 rte_global_keepalive_info =
 759                         rte_keepalive_create(&dead_core, ka_shm);
 760                 if (rte_global_keepalive_info == NULL)
 761                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 762                 /* >8 End of initializing keepalive functionality. */
 763                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 764                         relay_core_state, ka_shm);
 765                 rte_timer_init(&hb_timer);
 766                 if (rte_timer_reset(&hb_timer,
 767                                 (check_period * rte_get_timer_hz()) / 1000,
 768                                 PERIODICAL,
 769                                 rte_lcore_id(),
 770                                 (void(*)(struct rte_timer*, void*))
 771                                 &rte_keepalive_dispatch_pings,
 772                                 rte_global_keepalive_info
 773                                 ) != 0 )
 774                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 775         }
 776         if (timer_period > 0) {
 777                 /* Issues the pings keepalive_dispatch_pings(). 8< */
 778                 if (rte_timer_reset(&stats_timer,
 779                                 (timer_period * rte_get_timer_hz()) / 1000,
 780                                 PERIODICAL,
 781                                 rte_lcore_id(),
 782                                 &print_stats, NULL
 783                                 ) != 0 )
 784                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 785                 /* >8 End of issuing the pings keepalive_dispatch_pings(). */
 786         }
 787         /* launch per-lcore init on every worker lcore */
 788         RTE_LCORE_FOREACH_WORKER(lcore_id) {
 789                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 790
 791                 if (qconf->n_rx_port == 0)
 792                         RTE_LOG(INFO, L2FWD,
 793                                 "lcore %u has nothing to do\n",
 794                                 lcore_id
 795                                 );
 796                 else {
 797                         rte_eal_remote_launch(
 798                                 l2fwd_launch_one_lcore,
 799                                 NULL,
 800                                 lcore_id
 801                                 );
 802                         rte_keepalive_register_core(rte_global_keepalive_info,
 803                                 lcore_id);
 804                 }
 805         }
 806         while (!terminate_signal_received) {
 807                 rte_timer_manage();
 808                 rte_delay_ms(5);
 809                 }
 810
 811         RTE_LCORE_FOREACH_WORKER(lcore_id) {
 812                 if (rte_eal_wait_lcore(lcore_id) < 0)
 813                         return -1;
 814         }
 815
 816         if (ka_shm != NULL)
 817                 rte_keepalive_shm_cleanup(ka_shm);
 818
 819         /* clean up the EAL */
 820         rte_eal_cleanup();
 821
 822         return 0;
 823 }