examples/l2fwd-keepalive/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
  48 #include <rte_common.h>
  49 #include <rte_log.h>
  50 #include <rte_malloc.h>
  51 #include <rte_memory.h>
  52 #include <rte_memcpy.h>
  53 #include <rte_memzone.h>
  54 #include <rte_eal.h>
  55 #include <rte_per_lcore.h>
  56 #include <rte_launch.h>
  57 #include <rte_atomic.h>
  58 #include <rte_cycles.h>
  59 #include <rte_prefetch.h>
  60 #include <rte_lcore.h>
  61 #include <rte_per_lcore.h>
  62 #include <rte_branch_prediction.h>
  63 #include <rte_interrupts.h>
  64 #include <rte_pci.h>
  65 #include <rte_random.h>
  66 #include <rte_debug.h>
  67 #include <rte_ether.h>
  68 #include <rte_ethdev.h>
  69 #include <rte_mempool.h>
  70 #include <rte_mbuf.h>
  71 #include <rte_timer.h>
  72 #include <rte_keepalive.h>
  73
  74 #include "shm.h"
  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
  83 /*
  84  * Configurable number of RX/TX ring descriptors
  85  */
  86 #define RTE_TEST_RX_DESC_DEFAULT 128
  87 #define RTE_TEST_TX_DESC_DEFAULT 512
  88 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  89 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  90
  91 /* ethernet addresses of ports */
  92 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
  93
  94 /* mask of enabled ports */
  95 static uint32_t l2fwd_enabled_port_mask;
  96
  97 /* list of enabled ports */
  98 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
  99
 100 static unsigned int l2fwd_rx_queue_per_lcore = 1;
 101
 102 #define MAX_RX_QUEUE_PER_LCORE 16
 103 #define MAX_TX_QUEUE_PER_PORT 16
 104 struct lcore_queue_conf {
 105         unsigned n_rx_port;
 106         unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
 107 } __rte_cache_aligned;
 108 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
 109
 110 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 111
 112 static const struct rte_eth_conf port_conf = {
 113         .rxmode = {
 114                 .split_hdr_size = 0,
 115                 .header_split   = 0, /**< Header Split disabled */
 116                 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
 117                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 118                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 119                 .hw_strip_crc   = 0, /**< CRC stripped by hardware */
 120         },
 121         .txmode = {
 122                 .mq_mode = ETH_MQ_TX_NONE,
 123         },
 124 };
 125
 126 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
 127
 128 /* Per-port statistics struct */
 129 struct l2fwd_port_statistics {
 130         uint64_t tx;
 131         uint64_t rx;
 132         uint64_t dropped;
 133 } __rte_cache_aligned;
 134 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 135
 136 /* A tsc-based timer responsible for triggering statistics printout */
 137 #define TIMER_MILLISECOND 1
 138 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 139 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
 140 static int64_t check_period = 5; /* default check cycle is 5ms */
 141
 142 /* Keepalive structure */
 143 struct rte_keepalive *rte_global_keepalive_info;
 144
 145 /* Print out statistics on packets dropped */
 146 static void
 147 print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 148         __attribute__((unused)) void *ptr_data)
 149 {
 150         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 151         unsigned portid;
 152
 153         total_packets_dropped = 0;
 154         total_packets_tx = 0;
 155         total_packets_rx = 0;
 156
 157         const char clr[] = { 27, '[', '2', 'J', '\0' };
 158         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 159
 160                 /* Clear screen and move to top left */
 161         printf("%s%s", clr, topLeft);
 162
 163         printf("\nPort statistics ====================================");
 164
 165         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 166                 /* skip disabled ports */
 167                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 168                         continue;
 169                 printf("\nStatistics for port %u ------------------------------"
 170                            "\nPackets sent: %24"PRIu64
 171                            "\nPackets received: %20"PRIu64
 172                            "\nPackets dropped: %21"PRIu64,
 173                            portid,
 174                            port_statistics[portid].tx,
 175                            port_statistics[portid].rx,
 176                            port_statistics[portid].dropped);
 177
 178                 total_packets_dropped += port_statistics[portid].dropped;
 179                 total_packets_tx += port_statistics[portid].tx;
 180                 total_packets_rx += port_statistics[portid].rx;
 181         }
 182         printf("\nAggregate statistics ==============================="
 183                    "\nTotal packets sent: %18"PRIu64
 184                    "\nTotal packets received: %14"PRIu64
 185                    "\nTotal packets dropped: %15"PRIu64,
 186                    total_packets_tx,
 187                    total_packets_rx,
 188                    total_packets_dropped);
 189         printf("\n====================================================\n");
 190 }
 191
 192 static void
 193 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 194 {
 195         struct ether_hdr *eth;
 196         void *tmp;
 197         int sent;
 198         unsigned dst_port;
 199         struct rte_eth_dev_tx_buffer *buffer;
 200
 201         dst_port = l2fwd_dst_ports[portid];
 202         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 203
 204         /* 02:00:00:00:00:xx */
 205         tmp = &eth->d_addr.addr_bytes[0];
 206         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 207
 208         /* src addr */
 209         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 210
 211         buffer = tx_buffer[dst_port];
 212         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 213         if (sent)
 214                 port_statistics[dst_port].tx += sent;
 215 }
 216
 217 /* main processing loop */
 218 static void
 219 l2fwd_main_loop(void)
 220 {
 221         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 222         struct rte_mbuf *m;
 223         int sent;
 224         unsigned lcore_id;
 225         uint64_t prev_tsc, diff_tsc, cur_tsc;
 226         unsigned i, j, portid, nb_rx;
 227         struct lcore_queue_conf *qconf;
 228         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 229                 / US_PER_S * BURST_TX_DRAIN_US;
 230         struct rte_eth_dev_tx_buffer *buffer;
 231
 232         prev_tsc = 0;
 233
 234         lcore_id = rte_lcore_id();
 235         qconf = &lcore_queue_conf[lcore_id];
 236
 237         if (qconf->n_rx_port == 0) {
 238                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 239                 return;
 240         }
 241
 242         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 243
 244         for (i = 0; i < qconf->n_rx_port; i++) {
 245
 246                 portid = qconf->rx_port_list[i];
 247                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 248                         portid);
 249         }
 250
 251         uint64_t tsc_initial = rte_rdtsc();
 252         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 253
 254         while (1) {
 255                 /* Keepalive heartbeat */
 256                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 257
 258                 cur_tsc = rte_rdtsc();
 259
 260                 /*
 261                  * Die randomly within 7 secs for demo purposes if
 262                  * keepalive enabled
 263                  */
 264                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 265                         break;
 266
 267                 /*
 268                  * TX burst queue drain
 269                  */
 270                 diff_tsc = cur_tsc - prev_tsc;
 271                 if (unlikely(diff_tsc > drain_tsc)) {
 272
 273                         for (i = 0; i < qconf->n_rx_port; i++) {
 274
 275                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 276                                 buffer = tx_buffer[portid];
 277
 278                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 279                                 if (sent)
 280                                         port_statistics[portid].tx += sent;
 281
 282                         }
 283
 284                         prev_tsc = cur_tsc;
 285                 }
 286
 287                 /*
 288                  * Read packet from RX queues
 289                  */
 290                 for (i = 0; i < qconf->n_rx_port; i++) {
 291
 292                         portid = qconf->rx_port_list[i];
 293                         nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
 294                                                  pkts_burst, MAX_PKT_BURST);
 295
 296                         port_statistics[portid].rx += nb_rx;
 297
 298                         for (j = 0; j < nb_rx; j++) {
 299                                 m = pkts_burst[j];
 300                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 301                                 l2fwd_simple_forward(m, portid);
 302                         }
 303                 }
 304         }
 305 }
 306
 307 static int
 308 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 309 {
 310         l2fwd_main_loop();
 311         return 0;
 312 }
 313
 314 /* display usage */
 315 static void
 316 l2fwd_usage(const char *prgname)
 317 {
 318         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 319                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 320                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 321                "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
 322                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 323                prgname);
 324 }
 325
 326 static int
 327 l2fwd_parse_portmask(const char *portmask)
 328 {
 329         char *end = NULL;
 330         unsigned long pm;
 331
 332         /* parse hexadecimal string */
 333         pm = strtoul(portmask, &end, 16);
 334         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 335                 return -1;
 336
 337         if (pm == 0)
 338                 return -1;
 339
 340         return pm;
 341 }
 342
 343 static unsigned int
 344 l2fwd_parse_nqueue(const char *q_arg)
 345 {
 346         char *end = NULL;
 347         unsigned long n;
 348
 349         /* parse hexadecimal string */
 350         n = strtoul(q_arg, &end, 10);
 351         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 352                 return 0;
 353         if (n == 0)
 354                 return 0;
 355         if (n >= MAX_RX_QUEUE_PER_LCORE)
 356                 return 0;
 357
 358         return n;
 359 }
 360
 361 static int
 362 l2fwd_parse_timer_period(const char *q_arg)
 363 {
 364         char *end = NULL;
 365         int n;
 366
 367         /* parse number string */
 368         n = strtol(q_arg, &end, 10);
 369         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 370                 return -1;
 371         if (n >= MAX_TIMER_PERIOD)
 372                 return -1;
 373
 374         return n;
 375 }
 376
 377 static int
 378 l2fwd_parse_check_period(const char *q_arg)
 379 {
 380         char *end = NULL;
 381         int n;
 382
 383         /* parse number string */
 384         n = strtol(q_arg, &end, 10);
 385         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 386                 return -1;
 387         if (n >= MAX_TIMER_PERIOD)
 388                 return -1;
 389
 390         return n;
 391 }
 392
 393 /* Parse the argument given in the command line of the application */
 394 static int
 395 l2fwd_parse_args(int argc, char **argv)
 396 {
 397         int opt, ret;
 398         char **argvopt;
 399         int option_index;
 400         char *prgname = argv[0];
 401         static struct option lgopts[] = {
 402                 {NULL, 0, 0, 0}
 403         };
 404
 405         argvopt = argv;
 406
 407         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 408                                   lgopts, &option_index)) != EOF) {
 409
 410                 switch (opt) {
 411                 /* portmask */
 412                 case 'p':
 413                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 414                         if (l2fwd_enabled_port_mask == 0) {
 415                                 printf("invalid portmask\n");
 416                                 l2fwd_usage(prgname);
 417                                 return -1;
 418                         }
 419                         break;
 420
 421                 /* nqueue */
 422                 case 'q':
 423                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 424                         if (l2fwd_rx_queue_per_lcore == 0) {
 425                                 printf("invalid queue number\n");
 426                                 l2fwd_usage(prgname);
 427                                 return -1;
 428                         }
 429                         break;
 430
 431                 /* timer period */
 432                 case 'T':
 433                         timer_period = l2fwd_parse_timer_period(optarg)
 434                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 435                         if (timer_period < 0) {
 436                                 printf("invalid timer period\n");
 437                                 l2fwd_usage(prgname);
 438                                 return -1;
 439                         }
 440                         break;
 441
 442                 /* Check period */
 443                 case 'K':
 444                         check_period = l2fwd_parse_check_period(optarg);
 445                         if (check_period < 0) {
 446                                 printf("invalid check period\n");
 447                                 l2fwd_usage(prgname);
 448                                 return -1;
 449                         }
 450                         break;
 451
 452                 /* long options */
 453                 case 0:
 454                         l2fwd_usage(prgname);
 455                         return -1;
 456
 457                 default:
 458                         l2fwd_usage(prgname);
 459                         return -1;
 460                 }
 461         }
 462
 463         if (optind >= 0)
 464                 argv[optind-1] = prgname;
 465
 466         ret = optind-1;
 467         optind = 1; /* reset getopt lib */
 468         return ret;
 469 }
 470
 471 /* Check the link status of all ports in up to 9s, and print them finally */
 472 static void
 473 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 474 {
 475 #define CHECK_INTERVAL 100 /* 100ms */
 476 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 477         uint8_t portid, count, all_ports_up, print_flag = 0;
 478         struct rte_eth_link link;
 479
 480         printf("\nChecking link status");
 481         fflush(stdout);
 482         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 483                 all_ports_up = 1;
 484                 for (portid = 0; portid < port_num; portid++) {
 485                         if ((port_mask & (1 << portid)) == 0)
 486                                 continue;
 487                         memset(&link, 0, sizeof(link));
 488                         rte_eth_link_get_nowait(portid, &link);
 489                         /* print link status if flag set */
 490                         if (print_flag == 1) {
 491                                 if (link.link_status)
 492                                         printf("Port %d Link Up - speed %u "
 493                                                 "Mbps - %s\n", (uint8_t)portid,
 494                                                 (unsigned)link.link_speed,
 495                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 496                                         ("full-duplex") : ("half-duplex\n"));
 497                                 else
 498                                         printf("Port %d Link Down\n",
 499                                                 (uint8_t)portid);
 500                                 continue;
 501                         }
 502                         /* clear all_ports_up flag if any link down */
 503                         if (link.link_status == ETH_LINK_DOWN) {
 504                                 all_ports_up = 0;
 505                                 break;
 506                         }
 507                 }
 508                 /* after finally printing all link status, get out */
 509                 if (print_flag == 1)
 510                         break;
 511
 512                 if (all_ports_up == 0) {
 513                         printf(".");
 514                         fflush(stdout);
 515                         rte_delay_ms(CHECK_INTERVAL);
 516                 }
 517
 518                 /* set the print_flag if all ports up or timeout */
 519                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 520                         print_flag = 1;
 521                         printf("done\n");
 522                 }
 523         }
 524 }
 525
 526 static void
 527 dead_core(__rte_unused void *ptr_data, const int id_core)
 528 {
 529         printf("Dead core %i - restarting..\n", id_core);
 530         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 531                 rte_eal_wait_lcore(id_core);
 532                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 533         } else {
 534                 printf("..false positive!\n");
 535         }
 536 }
 537
 538 static void
 539 relay_core_state(void *ptr_data, const int id_core,
 540         const enum rte_keepalive_state core_state, uint64_t last_alive)
 541 {
 542         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 543                 id_core, core_state, last_alive);
 544 }
 545
 546 int
 547 main(int argc, char **argv)
 548 {
 549         struct lcore_queue_conf *qconf;
 550         struct rte_eth_dev_info dev_info;
 551         int ret;
 552         uint8_t nb_ports;
 553         uint8_t nb_ports_available;
 554         uint8_t portid, last_port;
 555         unsigned lcore_id, rx_lcore_id;
 556         unsigned nb_ports_in_mask = 0;
 557
 558         /* init EAL */
 559         ret = rte_eal_init(argc, argv);
 560         if (ret < 0)
 561                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 562         argc -= ret;
 563         argv += ret;
 564
 565         l2fwd_enabled_port_mask = 0;
 566
 567         /* parse application arguments (after the EAL ones) */
 568         ret = l2fwd_parse_args(argc, argv);
 569         if (ret < 0)
 570                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 571
 572         /* create the mbuf pool */
 573         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 574                 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 575         if (l2fwd_pktmbuf_pool == NULL)
 576                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 577
 578         nb_ports = rte_eth_dev_count();
 579         if (nb_ports == 0)
 580                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 581
 582         /* reset l2fwd_dst_ports */
 583         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 584                 l2fwd_dst_ports[portid] = 0;
 585         last_port = 0;
 586
 587         /*
 588          * Each logical core is assigned a dedicated TX queue on each port.
 589          */
 590         for (portid = 0; portid < nb_ports; portid++) {
 591                 /* skip ports that are not enabled */
 592                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 593                         continue;
 594
 595                 if (nb_ports_in_mask % 2) {
 596                         l2fwd_dst_ports[portid] = last_port;
 597                         l2fwd_dst_ports[last_port] = portid;
 598                 } else
 599                         last_port = portid;
 600
 601                 nb_ports_in_mask++;
 602
 603                 rte_eth_dev_info_get(portid, &dev_info);
 604         }
 605         if (nb_ports_in_mask % 2) {
 606                 printf("Notice: odd number of ports in portmask.\n");
 607                 l2fwd_dst_ports[last_port] = last_port;
 608         }
 609
 610         rx_lcore_id = 1;
 611         qconf = NULL;
 612
 613         /* Initialize the port/queue configuration of each logical core */
 614         for (portid = 0; portid < nb_ports; portid++) {
 615                 /* skip ports that are not enabled */
 616                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 617                         continue;
 618
 619                 /* get the lcore_id for this port */
 620                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 621                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 622                        l2fwd_rx_queue_per_lcore) {
 623                         rx_lcore_id++;
 624                         if (rx_lcore_id >= RTE_MAX_LCORE)
 625                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 626                 }
 627
 628                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 629                         /* Assigned a new logical core in the loop above. */
 630                         qconf = &lcore_queue_conf[rx_lcore_id];
 631
 632                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 633                 qconf->n_rx_port++;
 634                 printf("Lcore %u: RX port %u\n",
 635                         rx_lcore_id, (unsigned) portid);
 636         }
 637
 638         nb_ports_available = nb_ports;
 639
 640         /* Initialise each port */
 641         for (portid = 0; portid < nb_ports; portid++) {
 642                 /* skip ports that are not enabled */
 643                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 644                         printf("Skipping disabled port %u\n",
 645                                 (unsigned) portid);
 646                         nb_ports_available--;
 647                         continue;
 648                 }
 649                 /* init port */
 650                 printf("Initializing port %u... ", (unsigned) portid);
 651                 fflush(stdout);
 652                 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
 653                 if (ret < 0)
 654                         rte_exit(EXIT_FAILURE,
 655                                 "Cannot configure device: err=%d, port=%u\n",
 656                                 ret, (unsigned) portid);
 657
 658                 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
 659
 660                 /* init one RX queue */
 661                 fflush(stdout);
 662                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 663                                              rte_eth_dev_socket_id(portid),
 664                                              NULL,
 665                                              l2fwd_pktmbuf_pool);
 666                 if (ret < 0)
 667                         rte_exit(EXIT_FAILURE,
 668                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 669                                 ret, (unsigned) portid);
 670
 671                 /* init one TX queue on each port */
 672                 fflush(stdout);
 673                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 674                                 rte_eth_dev_socket_id(portid),
 675                                 NULL);
 676                 if (ret < 0)
 677                         rte_exit(EXIT_FAILURE,
 678                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 679                                 ret, (unsigned) portid);
 680
 681                 /* Initialize TX buffers */
 682                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 683                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 684                                 rte_eth_dev_socket_id(portid));
 685                 if (tx_buffer[portid] == NULL)
 686                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 687                                         (unsigned) portid);
 688
 689                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 690
 691                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 692                                 rte_eth_tx_buffer_count_callback,
 693                                 &port_statistics[portid].dropped);
 694                 if (ret < 0)
 695                                 rte_exit(EXIT_FAILURE, "Cannot set error callback for "
 696                                                 "tx buffer on port %u\n", (unsigned) portid);
 697
 698                 /* Start device */
 699                 ret = rte_eth_dev_start(portid);
 700                 if (ret < 0)
 701                         rte_exit(EXIT_FAILURE,
 702                                 "rte_eth_dev_start:err=%d, port=%u\n",
 703                                   ret, (unsigned) portid);
 704
 705                 rte_eth_promiscuous_enable(portid);
 706
 707                 printf("Port %u, MAC address: "
 708                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 709                         (unsigned) portid,
 710                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 711                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 712                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 713                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 714                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 715                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 716
 717                 /* initialize port stats */
 718                 memset(&port_statistics, 0, sizeof(port_statistics));
 719         }
 720
 721         if (!nb_ports_available) {
 722                 rte_exit(EXIT_FAILURE,
 723                         "All available ports are disabled. Please set portmask.\n");
 724         }
 725
 726         check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
 727
 728         struct rte_timer hb_timer, stats_timer;
 729
 730         rte_timer_subsystem_init();
 731         rte_timer_init(&stats_timer);
 732
 733         if (check_period > 0) {
 734                 struct rte_keepalive_shm *ka_shm;
 735
 736                 ka_shm = rte_keepalive_shm_create();
 737                 if (ka_shm == NULL)
 738                         rte_exit(EXIT_FAILURE,
 739                                 "rte_keepalive_shm_create() failed");
 740                 rte_global_keepalive_info =
 741                         rte_keepalive_create(&dead_core, ka_shm);
 742                 if (rte_global_keepalive_info == NULL)
 743                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 744                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 745                         relay_core_state, ka_shm);
 746                 rte_timer_init(&hb_timer);
 747                 if (rte_timer_reset(&hb_timer,
 748                                 (check_period * rte_get_timer_hz()) / 1000,
 749                                 PERIODICAL,
 750                                 rte_lcore_id(),
 751                                 (void(*)(struct rte_timer*, void*))
 752                                 &rte_keepalive_dispatch_pings,
 753                                 rte_global_keepalive_info
 754                                 ) != 0 )
 755                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 756         }
 757         if (timer_period > 0) {
 758                 if (rte_timer_reset(&stats_timer,
 759                                 (timer_period * rte_get_timer_hz()) / 1000,
 760                                 PERIODICAL,
 761                                 rte_lcore_id(),
 762                                 &print_stats, NULL
 763                                 ) != 0 )
 764                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 765         }
 766         /* launch per-lcore init on every slave lcore */
 767         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 768                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 769
 770                 if (qconf->n_rx_port == 0)
 771                         RTE_LOG(INFO, L2FWD,
 772                                 "lcore %u has nothing to do\n",
 773                                 lcore_id
 774                                 );
 775                 else {
 776                         rte_eal_remote_launch(
 777                                 l2fwd_launch_one_lcore,
 778                                 NULL,
 779                                 lcore_id
 780                                 );
 781                         rte_keepalive_register_core(rte_global_keepalive_info,
 782                                 lcore_id);
 783                 }
 784         }
 785         for (;;) {
 786                 rte_timer_manage();
 787                 rte_delay_ms(5);
 788                 }
 789
 790         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 791                 if (rte_eal_wait_lcore(lcore_id) < 0)
 792                         return -1;
 793         }
 794
 795         return 0;
 796 }