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_ring.h>
  70 #include <rte_mempool.h>
  71 #include <rte_mbuf.h>
  72 #include <rte_timer.h>
  73 #include <rte_keepalive.h>
  74
  75 #include "shm.h"
  76
  77 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
  78
  79 #define NB_MBUF   8192
  80
  81 #define MAX_PKT_BURST 32
  82 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
  83
  84 /*
  85  * Configurable number of RX/TX ring descriptors
  86  */
  87 #define RTE_TEST_RX_DESC_DEFAULT 128
  88 #define RTE_TEST_TX_DESC_DEFAULT 512
  89 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  90 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  91
  92 /* ethernet addresses of ports */
  93 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
  94
  95 /* mask of enabled ports */
  96 static uint32_t l2fwd_enabled_port_mask;
  97
  98 /* list of enabled ports */
  99 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
 100
 101 static unsigned int l2fwd_rx_queue_per_lcore = 1;
 102
 103 #define MAX_RX_QUEUE_PER_LCORE 16
 104 #define MAX_TX_QUEUE_PER_PORT 16
 105 struct lcore_queue_conf {
 106         unsigned n_rx_port;
 107         unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
 108 } __rte_cache_aligned;
 109 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
 110
 111 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 112
 113 static const struct rte_eth_conf port_conf = {
 114         .rxmode = {
 115                 .split_hdr_size = 0,
 116                 .header_split   = 0, /**< Header Split disabled */
 117                 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
 118                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 119                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 120                 .hw_strip_crc   = 0, /**< CRC stripped by hardware */
 121         },
 122         .txmode = {
 123                 .mq_mode = ETH_MQ_TX_NONE,
 124         },
 125 };
 126
 127 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
 128
 129 /* Per-port statistics struct */
 130 struct l2fwd_port_statistics {
 131         uint64_t tx;
 132         uint64_t rx;
 133         uint64_t dropped;
 134 } __rte_cache_aligned;
 135 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 136
 137 /* A tsc-based timer responsible for triggering statistics printout */
 138 #define TIMER_MILLISECOND 1
 139 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 140 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
 141 static int64_t check_period = 5; /* default check cycle is 5ms */
 142
 143 /* Keepalive structure */
 144 struct rte_keepalive *rte_global_keepalive_info;
 145
 146 /* Print out statistics on packets dropped */
 147 static void
 148 print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 149         __attribute__((unused)) void *ptr_data)
 150 {
 151         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 152         unsigned portid;
 153
 154         total_packets_dropped = 0;
 155         total_packets_tx = 0;
 156         total_packets_rx = 0;
 157
 158         const char clr[] = { 27, '[', '2', 'J', '\0' };
 159         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 160
 161                 /* Clear screen and move to top left */
 162         printf("%s%s", clr, topLeft);
 163
 164         printf("\nPort statistics ====================================");
 165
 166         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 167                 /* skip disabled ports */
 168                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 169                         continue;
 170                 printf("\nStatistics for port %u ------------------------------"
 171                            "\nPackets sent: %24"PRIu64
 172                            "\nPackets received: %20"PRIu64
 173                            "\nPackets dropped: %21"PRIu64,
 174                            portid,
 175                            port_statistics[portid].tx,
 176                            port_statistics[portid].rx,
 177                            port_statistics[portid].dropped);
 178
 179                 total_packets_dropped += port_statistics[portid].dropped;
 180                 total_packets_tx += port_statistics[portid].tx;
 181                 total_packets_rx += port_statistics[portid].rx;
 182         }
 183         printf("\nAggregate statistics ==============================="
 184                    "\nTotal packets sent: %18"PRIu64
 185                    "\nTotal packets received: %14"PRIu64
 186                    "\nTotal packets dropped: %15"PRIu64,
 187                    total_packets_tx,
 188                    total_packets_rx,
 189                    total_packets_dropped);
 190         printf("\n====================================================\n");
 191 }
 192
 193 static void
 194 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 195 {
 196         struct ether_hdr *eth;
 197         void *tmp;
 198         int sent;
 199         unsigned dst_port;
 200         struct rte_eth_dev_tx_buffer *buffer;
 201
 202         dst_port = l2fwd_dst_ports[portid];
 203         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 204
 205         /* 02:00:00:00:00:xx */
 206         tmp = &eth->d_addr.addr_bytes[0];
 207         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 208
 209         /* src addr */
 210         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 211
 212         buffer = tx_buffer[dst_port];
 213         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 214         if (sent)
 215                 port_statistics[dst_port].tx += sent;
 216 }
 217
 218 /* main processing loop */
 219 static void
 220 l2fwd_main_loop(void)
 221 {
 222         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 223         struct rte_mbuf *m;
 224         int sent;
 225         unsigned lcore_id;
 226         uint64_t prev_tsc, diff_tsc, cur_tsc;
 227         unsigned i, j, portid, nb_rx;
 228         struct lcore_queue_conf *qconf;
 229         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 230                 / US_PER_S * BURST_TX_DRAIN_US;
 231         struct rte_eth_dev_tx_buffer *buffer;
 232
 233         prev_tsc = 0;
 234
 235         lcore_id = rte_lcore_id();
 236         qconf = &lcore_queue_conf[lcore_id];
 237
 238         if (qconf->n_rx_port == 0) {
 239                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 240                 return;
 241         }
 242
 243         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 244
 245         for (i = 0; i < qconf->n_rx_port; i++) {
 246
 247                 portid = qconf->rx_port_list[i];
 248                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 249                         portid);
 250         }
 251
 252         uint64_t tsc_initial = rte_rdtsc();
 253         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 254
 255         while (1) {
 256                 /* Keepalive heartbeat */
 257                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 258
 259                 cur_tsc = rte_rdtsc();
 260
 261                 /*
 262                  * Die randomly within 7 secs for demo purposes if
 263                  * keepalive enabled
 264                  */
 265                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 266                         break;
 267
 268                 /*
 269                  * TX burst queue drain
 270                  */
 271                 diff_tsc = cur_tsc - prev_tsc;
 272                 if (unlikely(diff_tsc > drain_tsc)) {
 273
 274                         for (i = 0; i < qconf->n_rx_port; i++) {
 275
 276                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 277                                 buffer = tx_buffer[portid];
 278
 279                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 280                                 if (sent)
 281                                         port_statistics[portid].tx += sent;
 282
 283                         }
 284
 285                         prev_tsc = cur_tsc;
 286                 }
 287
 288                 /*
 289                  * Read packet from RX queues
 290                  */
 291                 for (i = 0; i < qconf->n_rx_port; i++) {
 292
 293                         portid = qconf->rx_port_list[i];
 294                         nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
 295                                                  pkts_burst, MAX_PKT_BURST);
 296
 297                         port_statistics[portid].rx += nb_rx;
 298
 299                         for (j = 0; j < nb_rx; j++) {
 300                                 m = pkts_burst[j];
 301                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 302                                 l2fwd_simple_forward(m, portid);
 303                         }
 304                 }
 305         }
 306 }
 307
 308 static int
 309 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 310 {
 311         l2fwd_main_loop();
 312         return 0;
 313 }
 314
 315 /* display usage */
 316 static void
 317 l2fwd_usage(const char *prgname)
 318 {
 319         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 320                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 321                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 322                "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
 323                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 324                prgname);
 325 }
 326
 327 static int
 328 l2fwd_parse_portmask(const char *portmask)
 329 {
 330         char *end = NULL;
 331         unsigned long pm;
 332
 333         /* parse hexadecimal string */
 334         pm = strtoul(portmask, &end, 16);
 335         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 336                 return -1;
 337
 338         if (pm == 0)
 339                 return -1;
 340
 341         return pm;
 342 }
 343
 344 static unsigned int
 345 l2fwd_parse_nqueue(const char *q_arg)
 346 {
 347         char *end = NULL;
 348         unsigned long n;
 349
 350         /* parse hexadecimal string */
 351         n = strtoul(q_arg, &end, 10);
 352         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 353                 return 0;
 354         if (n == 0)
 355                 return 0;
 356         if (n >= MAX_RX_QUEUE_PER_LCORE)
 357                 return 0;
 358
 359         return n;
 360 }
 361
 362 static int
 363 l2fwd_parse_timer_period(const char *q_arg)
 364 {
 365         char *end = NULL;
 366         int n;
 367
 368         /* parse number string */
 369         n = strtol(q_arg, &end, 10);
 370         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 371                 return -1;
 372         if (n >= MAX_TIMER_PERIOD)
 373                 return -1;
 374
 375         return n;
 376 }
 377
 378 static int
 379 l2fwd_parse_check_period(const char *q_arg)
 380 {
 381         char *end = NULL;
 382         int n;
 383
 384         /* parse number string */
 385         n = strtol(q_arg, &end, 10);
 386         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 387                 return -1;
 388         if (n >= MAX_TIMER_PERIOD)
 389                 return -1;
 390
 391         return n;
 392 }
 393
 394 /* Parse the argument given in the command line of the application */
 395 static int
 396 l2fwd_parse_args(int argc, char **argv)
 397 {
 398         int opt, ret;
 399         char **argvopt;
 400         int option_index;
 401         char *prgname = argv[0];
 402         static struct option lgopts[] = {
 403                 {NULL, 0, 0, 0}
 404         };
 405
 406         argvopt = argv;
 407
 408         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 409                                   lgopts, &option_index)) != EOF) {
 410
 411                 switch (opt) {
 412                 /* portmask */
 413                 case 'p':
 414                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 415                         if (l2fwd_enabled_port_mask == 0) {
 416                                 printf("invalid portmask\n");
 417                                 l2fwd_usage(prgname);
 418                                 return -1;
 419                         }
 420                         break;
 421
 422                 /* nqueue */
 423                 case 'q':
 424                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 425                         if (l2fwd_rx_queue_per_lcore == 0) {
 426                                 printf("invalid queue number\n");
 427                                 l2fwd_usage(prgname);
 428                                 return -1;
 429                         }
 430                         break;
 431
 432                 /* timer period */
 433                 case 'T':
 434                         timer_period = l2fwd_parse_timer_period(optarg)
 435                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 436                         if (timer_period < 0) {
 437                                 printf("invalid timer period\n");
 438                                 l2fwd_usage(prgname);
 439                                 return -1;
 440                         }
 441                         break;
 442
 443                 /* Check period */
 444                 case 'K':
 445                         check_period = l2fwd_parse_check_period(optarg);
 446                         if (check_period < 0) {
 447                                 printf("invalid check period\n");
 448                                 l2fwd_usage(prgname);
 449                                 return -1;
 450                         }
 451                         break;
 452
 453                 /* long options */
 454                 case 0:
 455                         l2fwd_usage(prgname);
 456                         return -1;
 457
 458                 default:
 459                         l2fwd_usage(prgname);
 460                         return -1;
 461                 }
 462         }
 463
 464         if (optind >= 0)
 465                 argv[optind-1] = prgname;
 466
 467         ret = optind-1;
 468         optind = 0; /* reset getopt lib */
 469         return ret;
 470 }
 471
 472 /* Check the link status of all ports in up to 9s, and print them finally */
 473 static void
 474 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 475 {
 476 #define CHECK_INTERVAL 100 /* 100ms */
 477 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 478         uint8_t portid, count, all_ports_up, print_flag = 0;
 479         struct rte_eth_link link;
 480
 481         printf("\nChecking link status");
 482         fflush(stdout);
 483         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 484                 all_ports_up = 1;
 485                 for (portid = 0; portid < port_num; portid++) {
 486                         if ((port_mask & (1 << portid)) == 0)
 487                                 continue;
 488                         memset(&link, 0, sizeof(link));
 489                         rte_eth_link_get_nowait(portid, &link);
 490                         /* print link status if flag set */
 491                         if (print_flag == 1) {
 492                                 if (link.link_status)
 493                                         printf("Port %d Link Up - speed %u "
 494                                                 "Mbps - %s\n", (uint8_t)portid,
 495                                                 (unsigned)link.link_speed,
 496                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 497                                         ("full-duplex") : ("half-duplex\n"));
 498                                 else
 499                                         printf("Port %d Link Down\n",
 500                                                 (uint8_t)portid);
 501                                 continue;
 502                         }
 503                         /* clear all_ports_up flag if any link down */
 504                         if (link.link_status == ETH_LINK_DOWN) {
 505                                 all_ports_up = 0;
 506                                 break;
 507                         }
 508                 }
 509                 /* after finally printing all link status, get out */
 510                 if (print_flag == 1)
 511                         break;
 512
 513                 if (all_ports_up == 0) {
 514                         printf(".");
 515                         fflush(stdout);
 516                         rte_delay_ms(CHECK_INTERVAL);
 517                 }
 518
 519                 /* set the print_flag if all ports up or timeout */
 520                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 521                         print_flag = 1;
 522                         printf("done\n");
 523                 }
 524         }
 525 }
 526
 527 static void
 528 dead_core(__rte_unused void *ptr_data, const int id_core)
 529 {
 530         printf("Dead core %i - restarting..\n", id_core);
 531         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 532                 rte_eal_wait_lcore(id_core);
 533                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 534         } else {
 535                 printf("..false positive!\n");
 536         }
 537 }
 538
 539 static void
 540 relay_core_state(void *ptr_data, const int id_core,
 541         const enum rte_keepalive_state core_state, uint64_t last_alive)
 542 {
 543         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 544                 id_core, core_state, last_alive);
 545 }
 546
 547 int
 548 main(int argc, char **argv)
 549 {
 550         struct lcore_queue_conf *qconf;
 551         struct rte_eth_dev_info dev_info;
 552         int ret;
 553         uint8_t nb_ports;
 554         uint8_t nb_ports_available;
 555         uint8_t portid, last_port;
 556         unsigned lcore_id, rx_lcore_id;
 557         unsigned nb_ports_in_mask = 0;
 558
 559         /* init EAL */
 560         ret = rte_eal_init(argc, argv);
 561         if (ret < 0)
 562                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 563         argc -= ret;
 564         argv += ret;
 565
 566         l2fwd_enabled_port_mask = 0;
 567
 568         /* parse application arguments (after the EAL ones) */
 569         ret = l2fwd_parse_args(argc, argv);
 570         if (ret < 0)
 571                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 572
 573         /* create the mbuf pool */
 574         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 575                 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 576         if (l2fwd_pktmbuf_pool == NULL)
 577                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 578
 579         nb_ports = rte_eth_dev_count();
 580         if (nb_ports == 0)
 581                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 582
 583         /* reset l2fwd_dst_ports */
 584         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 585                 l2fwd_dst_ports[portid] = 0;
 586         last_port = 0;
 587
 588         /*
 589          * Each logical core is assigned a dedicated TX queue on each port.
 590          */
 591         for (portid = 0; portid < nb_ports; portid++) {
 592                 /* skip ports that are not enabled */
 593                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 594                         continue;
 595
 596                 if (nb_ports_in_mask % 2) {
 597                         l2fwd_dst_ports[portid] = last_port;
 598                         l2fwd_dst_ports[last_port] = portid;
 599                 } else
 600                         last_port = portid;
 601
 602                 nb_ports_in_mask++;
 603
 604                 rte_eth_dev_info_get(portid, &dev_info);
 605         }
 606         if (nb_ports_in_mask % 2) {
 607                 printf("Notice: odd number of ports in portmask.\n");
 608                 l2fwd_dst_ports[last_port] = last_port;
 609         }
 610
 611         rx_lcore_id = 1;
 612         qconf = NULL;
 613
 614         /* Initialize the port/queue configuration of each logical core */
 615         for (portid = 0; portid < nb_ports; portid++) {
 616                 /* skip ports that are not enabled */
 617                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 618                         continue;
 619
 620                 /* get the lcore_id for this port */
 621                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 622                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 623                        l2fwd_rx_queue_per_lcore) {
 624                         rx_lcore_id++;
 625                         if (rx_lcore_id >= RTE_MAX_LCORE)
 626                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 627                 }
 628
 629                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 630                         /* Assigned a new logical core in the loop above. */
 631                         qconf = &lcore_queue_conf[rx_lcore_id];
 632
 633                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 634                 qconf->n_rx_port++;
 635                 printf("Lcore %u: RX port %u\n",
 636                         rx_lcore_id, (unsigned) portid);
 637         }
 638
 639         nb_ports_available = nb_ports;
 640
 641         /* Initialise each port */
 642         for (portid = 0; portid < nb_ports; portid++) {
 643                 /* skip ports that are not enabled */
 644                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 645                         printf("Skipping disabled port %u\n",
 646                                 (unsigned) portid);
 647                         nb_ports_available--;
 648                         continue;
 649                 }
 650                 /* init port */
 651                 printf("Initializing port %u... ", (unsigned) portid);
 652                 fflush(stdout);
 653                 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
 654                 if (ret < 0)
 655                         rte_exit(EXIT_FAILURE,
 656                                 "Cannot configure device: err=%d, port=%u\n",
 657                                 ret, (unsigned) portid);
 658
 659                 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
 660
 661                 /* init one RX queue */
 662                 fflush(stdout);
 663                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 664                                              rte_eth_dev_socket_id(portid),
 665                                              NULL,
 666                                              l2fwd_pktmbuf_pool);
 667                 if (ret < 0)
 668                         rte_exit(EXIT_FAILURE,
 669                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 670                                 ret, (unsigned) portid);
 671
 672                 /* init one TX queue on each port */
 673                 fflush(stdout);
 674                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 675                                 rte_eth_dev_socket_id(portid),
 676                                 NULL);
 677                 if (ret < 0)
 678                         rte_exit(EXIT_FAILURE,
 679                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 680                                 ret, (unsigned) portid);
 681
 682                 /* Initialize TX buffers */
 683                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 684                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 685                                 rte_eth_dev_socket_id(portid));
 686                 if (tx_buffer[portid] == NULL)
 687                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 688                                         (unsigned) portid);
 689
 690                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 691
 692                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 693                                 rte_eth_tx_buffer_count_callback,
 694                                 &port_statistics[portid].dropped);
 695                 if (ret < 0)
 696                                 rte_exit(EXIT_FAILURE, "Cannot set error callback for "
 697                                                 "tx buffer on port %u\n", (unsigned) portid);
 698
 699                 /* Start device */
 700                 ret = rte_eth_dev_start(portid);
 701                 if (ret < 0)
 702                         rte_exit(EXIT_FAILURE,
 703                                 "rte_eth_dev_start:err=%d, port=%u\n",
 704                                   ret, (unsigned) portid);
 705
 706                 rte_eth_promiscuous_enable(portid);
 707
 708                 printf("Port %u, MAC address: "
 709                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 710                         (unsigned) portid,
 711                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 712                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 713                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 714                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 715                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 716                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 717
 718                 /* initialize port stats */
 719                 memset(&port_statistics, 0, sizeof(port_statistics));
 720         }
 721
 722         if (!nb_ports_available) {
 723                 rte_exit(EXIT_FAILURE,
 724                         "All available ports are disabled. Please set portmask.\n");
 725         }
 726
 727         check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
 728
 729         struct rte_timer hb_timer, stats_timer;
 730
 731         rte_timer_subsystem_init();
 732         rte_timer_init(&stats_timer);
 733
 734         if (check_period > 0) {
 735                 struct rte_keepalive_shm *ka_shm;
 736
 737                 ka_shm = rte_keepalive_shm_create();
 738                 if (ka_shm == NULL)
 739                         rte_exit(EXIT_FAILURE,
 740                                 "rte_keepalive_shm_create() failed");
 741                 rte_global_keepalive_info =
 742                         rte_keepalive_create(&dead_core, ka_shm);
 743                 if (rte_global_keepalive_info == NULL)
 744                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 745                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 746                         relay_core_state, ka_shm);
 747                 rte_timer_init(&hb_timer);
 748                 if (rte_timer_reset(&hb_timer,
 749                                 (check_period * rte_get_timer_hz()) / 1000,
 750                                 PERIODICAL,
 751                                 rte_lcore_id(),
 752                                 (void(*)(struct rte_timer*, void*))
 753                                 &rte_keepalive_dispatch_pings,
 754                                 rte_global_keepalive_info
 755                                 ) != 0 )
 756                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 757         }
 758         if (timer_period > 0) {
 759                 if (rte_timer_reset(&stats_timer,
 760                                 (timer_period * rte_get_timer_hz()) / 1000,
 761                                 PERIODICAL,
 762                                 rte_lcore_id(),
 763                                 &print_stats, NULL
 764                                 ) != 0 )
 765                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 766         }
 767         /* launch per-lcore init on every slave lcore */
 768         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 769                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 770
 771                 if (qconf->n_rx_port == 0)
 772                         RTE_LOG(INFO, L2FWD,
 773                                 "lcore %u has nothing to do\n",
 774                                 lcore_id
 775                                 );
 776                 else {
 777                         rte_eal_remote_launch(
 778                                 l2fwd_launch_one_lcore,
 779                                 NULL,
 780                                 lcore_id
 781                                 );
 782                         rte_keepalive_register_core(rte_global_keepalive_info,
 783                                 lcore_id);
 784                 }
 785         }
 786         for (;;) {
 787                 rte_timer_manage();
 788                 rte_delay_ms(5);
 789                 }
 790
 791         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 792                 if (rte_eal_wait_lcore(lcore_id) < 0)
 793                         return -1;
 794         }
 795
 796         return 0;
 797 }