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 #include <signal.h>
  48
  49 #include <rte_common.h>
  50 #include <rte_log.h>
  51 #include <rte_malloc.h>
  52 #include <rte_memory.h>
  53 #include <rte_memcpy.h>
  54 #include <rte_eal.h>
  55 #include <rte_launch.h>
  56 #include <rte_atomic.h>
  57 #include <rte_cycles.h>
  58 #include <rte_prefetch.h>
  59 #include <rte_lcore.h>
  60 #include <rte_per_lcore.h>
  61 #include <rte_branch_prediction.h>
  62 #include <rte_interrupts.h>
  63 #include <rte_random.h>
  64 #include <rte_debug.h>
  65 #include <rte_ether.h>
  66 #include <rte_ethdev.h>
  67 #include <rte_mempool.h>
  68 #include <rte_mbuf.h>
  69 #include <rte_timer.h>
  70 #include <rte_keepalive.h>
  71
  72 #include "shm.h"
  73
  74 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
  75
  76 #define NB_MBUF   8192
  77
  78 #define MAX_PKT_BURST 32
  79 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
  80
  81 /*
  82  * Configurable number of RX/TX ring descriptors
  83  */
  84 #define RTE_TEST_RX_DESC_DEFAULT 128
  85 #define RTE_TEST_TX_DESC_DEFAULT 512
  86 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  87 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  88
  89 /* ethernet addresses of ports */
  90 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
  91
  92 /* mask of enabled ports */
  93 static uint32_t l2fwd_enabled_port_mask;
  94
  95 /* list of enabled ports */
  96 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
  97
  98 static unsigned int l2fwd_rx_queue_per_lcore = 1;
  99
 100 #define MAX_RX_QUEUE_PER_LCORE 16
 101 #define MAX_TX_QUEUE_PER_PORT 16
 102 struct lcore_queue_conf {
 103         unsigned n_rx_port;
 104         unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
 105 } __rte_cache_aligned;
 106 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
 107
 108 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 109
 110 static const struct rte_eth_conf port_conf = {
 111         .rxmode = {
 112                 .split_hdr_size = 0,
 113                 .header_split   = 0, /**< Header Split disabled */
 114                 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
 115                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 116                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 117                 .hw_strip_crc   = 1, /**< CRC stripped by hardware */
 118         },
 119         .txmode = {
 120                 .mq_mode = ETH_MQ_TX_NONE,
 121         },
 122 };
 123
 124 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
 125
 126 /* Per-port statistics struct */
 127 struct l2fwd_port_statistics {
 128         uint64_t tx;
 129         uint64_t rx;
 130         uint64_t dropped;
 131 } __rte_cache_aligned;
 132 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 133
 134 /* A tsc-based timer responsible for triggering statistics printout */
 135 #define TIMER_MILLISECOND 1
 136 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 137 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
 138 static int64_t check_period = 5; /* default check cycle is 5ms */
 139
 140 /* Keepalive structure */
 141 struct rte_keepalive *rte_global_keepalive_info;
 142
 143 /* Termination signalling */
 144 static int terminate_signal_received;
 145
 146 /* Termination signal handler */
 147 static void handle_sigterm(__rte_unused int value)
 148 {
 149         terminate_signal_received = 1;
 150 }
 151
 152 /* Print out statistics on packets dropped */
 153 static void
 154 print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 155         __attribute__((unused)) void *ptr_data)
 156 {
 157         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 158         uint16_t portid;
 159
 160         total_packets_dropped = 0;
 161         total_packets_tx = 0;
 162         total_packets_rx = 0;
 163
 164         const char clr[] = { 27, '[', '2', 'J', '\0' };
 165         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 166
 167                 /* Clear screen and move to top left */
 168         printf("%s%s", clr, topLeft);
 169
 170         printf("\nPort statistics ====================================");
 171
 172         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 173                 /* skip disabled ports */
 174                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 175                         continue;
 176                 printf("\nStatistics for port %u ------------------------------"
 177                            "\nPackets sent: %24"PRIu64
 178                            "\nPackets received: %20"PRIu64
 179                            "\nPackets dropped: %21"PRIu64,
 180                            portid,
 181                            port_statistics[portid].tx,
 182                            port_statistics[portid].rx,
 183                            port_statistics[portid].dropped);
 184
 185                 total_packets_dropped += port_statistics[portid].dropped;
 186                 total_packets_tx += port_statistics[portid].tx;
 187                 total_packets_rx += port_statistics[portid].rx;
 188         }
 189         printf("\nAggregate statistics ==============================="
 190                    "\nTotal packets sent: %18"PRIu64
 191                    "\nTotal packets received: %14"PRIu64
 192                    "\nTotal packets dropped: %15"PRIu64,
 193                    total_packets_tx,
 194                    total_packets_rx,
 195                    total_packets_dropped);
 196         printf("\n====================================================\n");
 197 }
 198
 199 static void
 200 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 201 {
 202         struct ether_hdr *eth;
 203         void *tmp;
 204         int sent;
 205         unsigned dst_port;
 206         struct rte_eth_dev_tx_buffer *buffer;
 207
 208         dst_port = l2fwd_dst_ports[portid];
 209         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 210
 211         /* 02:00:00:00:00:xx */
 212         tmp = &eth->d_addr.addr_bytes[0];
 213         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 214
 215         /* src addr */
 216         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 217
 218         buffer = tx_buffer[dst_port];
 219         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 220         if (sent)
 221                 port_statistics[dst_port].tx += sent;
 222 }
 223
 224 /* main processing loop */
 225 static void
 226 l2fwd_main_loop(void)
 227 {
 228         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 229         struct rte_mbuf *m;
 230         int sent;
 231         unsigned lcore_id;
 232         uint64_t prev_tsc, diff_tsc, cur_tsc;
 233         unsigned i, j, portid, nb_rx;
 234         struct lcore_queue_conf *qconf;
 235         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 236                 / US_PER_S * BURST_TX_DRAIN_US;
 237         struct rte_eth_dev_tx_buffer *buffer;
 238
 239         prev_tsc = 0;
 240
 241         lcore_id = rte_lcore_id();
 242         qconf = &lcore_queue_conf[lcore_id];
 243
 244         if (qconf->n_rx_port == 0) {
 245                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 246                 return;
 247         }
 248
 249         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 250
 251         for (i = 0; i < qconf->n_rx_port; i++) {
 252
 253                 portid = qconf->rx_port_list[i];
 254                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 255                         portid);
 256         }
 257
 258         uint64_t tsc_initial = rte_rdtsc();
 259         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 260
 261         while (!terminate_signal_received) {
 262                 /* Keepalive heartbeat */
 263                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 264
 265                 cur_tsc = rte_rdtsc();
 266
 267                 /*
 268                  * Die randomly within 7 secs for demo purposes if
 269                  * keepalive enabled
 270                  */
 271                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 272                         break;
 273
 274                 /*
 275                  * TX burst queue drain
 276                  */
 277                 diff_tsc = cur_tsc - prev_tsc;
 278                 if (unlikely(diff_tsc > drain_tsc)) {
 279
 280                         for (i = 0; i < qconf->n_rx_port; i++) {
 281
 282                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 283                                 buffer = tx_buffer[portid];
 284
 285                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 286                                 if (sent)
 287                                         port_statistics[portid].tx += sent;
 288
 289                         }
 290
 291                         prev_tsc = cur_tsc;
 292                 }
 293
 294                 /*
 295                  * Read packet from RX queues
 296                  */
 297                 for (i = 0; i < qconf->n_rx_port; i++) {
 298
 299                         portid = qconf->rx_port_list[i];
 300                         nb_rx = rte_eth_rx_burst(portid, 0,
 301                                                  pkts_burst, MAX_PKT_BURST);
 302
 303                         port_statistics[portid].rx += nb_rx;
 304
 305                         for (j = 0; j < nb_rx; j++) {
 306                                 m = pkts_burst[j];
 307                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 308                                 l2fwd_simple_forward(m, portid);
 309                         }
 310                 }
 311         }
 312 }
 313
 314 static int
 315 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 316 {
 317         l2fwd_main_loop();
 318         return 0;
 319 }
 320
 321 /* display usage */
 322 static void
 323 l2fwd_usage(const char *prgname)
 324 {
 325         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 326                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 327                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 328                "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
 329                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 330                prgname);
 331 }
 332
 333 static int
 334 l2fwd_parse_portmask(const char *portmask)
 335 {
 336         char *end = NULL;
 337         unsigned long pm;
 338
 339         /* parse hexadecimal string */
 340         pm = strtoul(portmask, &end, 16);
 341         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 342                 return -1;
 343
 344         if (pm == 0)
 345                 return -1;
 346
 347         return pm;
 348 }
 349
 350 static unsigned int
 351 l2fwd_parse_nqueue(const char *q_arg)
 352 {
 353         char *end = NULL;
 354         unsigned long n;
 355
 356         /* parse hexadecimal string */
 357         n = strtoul(q_arg, &end, 10);
 358         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 359                 return 0;
 360         if (n == 0)
 361                 return 0;
 362         if (n >= MAX_RX_QUEUE_PER_LCORE)
 363                 return 0;
 364
 365         return n;
 366 }
 367
 368 static int
 369 l2fwd_parse_timer_period(const char *q_arg)
 370 {
 371         char *end = NULL;
 372         int n;
 373
 374         /* parse number string */
 375         n = strtol(q_arg, &end, 10);
 376         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 377                 return -1;
 378         if (n >= MAX_TIMER_PERIOD)
 379                 return -1;
 380
 381         return n;
 382 }
 383
 384 static int
 385 l2fwd_parse_check_period(const char *q_arg)
 386 {
 387         char *end = NULL;
 388         int n;
 389
 390         /* parse number string */
 391         n = strtol(q_arg, &end, 10);
 392         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 393                 return -1;
 394         if (n >= MAX_TIMER_PERIOD)
 395                 return -1;
 396
 397         return n;
 398 }
 399
 400 /* Parse the argument given in the command line of the application */
 401 static int
 402 l2fwd_parse_args(int argc, char **argv)
 403 {
 404         int opt, ret;
 405         char **argvopt;
 406         int option_index;
 407         char *prgname = argv[0];
 408         static struct option lgopts[] = {
 409                 {NULL, 0, 0, 0}
 410         };
 411
 412         argvopt = argv;
 413
 414         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 415                                   lgopts, &option_index)) != EOF) {
 416
 417                 switch (opt) {
 418                 /* portmask */
 419                 case 'p':
 420                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 421                         if (l2fwd_enabled_port_mask == 0) {
 422                                 printf("invalid portmask\n");
 423                                 l2fwd_usage(prgname);
 424                                 return -1;
 425                         }
 426                         break;
 427
 428                 /* nqueue */
 429                 case 'q':
 430                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 431                         if (l2fwd_rx_queue_per_lcore == 0) {
 432                                 printf("invalid queue number\n");
 433                                 l2fwd_usage(prgname);
 434                                 return -1;
 435                         }
 436                         break;
 437
 438                 /* timer period */
 439                 case 'T':
 440                         timer_period = l2fwd_parse_timer_period(optarg)
 441                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 442                         if (timer_period < 0) {
 443                                 printf("invalid timer period\n");
 444                                 l2fwd_usage(prgname);
 445                                 return -1;
 446                         }
 447                         break;
 448
 449                 /* Check period */
 450                 case 'K':
 451                         check_period = l2fwd_parse_check_period(optarg);
 452                         if (check_period < 0) {
 453                                 printf("invalid check period\n");
 454                                 l2fwd_usage(prgname);
 455                                 return -1;
 456                         }
 457                         break;
 458
 459                 /* long options */
 460                 case 0:
 461                         l2fwd_usage(prgname);
 462                         return -1;
 463
 464                 default:
 465                         l2fwd_usage(prgname);
 466                         return -1;
 467                 }
 468         }
 469
 470         if (optind >= 0)
 471                 argv[optind-1] = prgname;
 472
 473         ret = optind-1;
 474         optind = 1; /* reset getopt lib */
 475         return ret;
 476 }
 477
 478 /* Check the link status of all ports in up to 9s, and print them finally */
 479 static void
 480 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
 481 {
 482 #define CHECK_INTERVAL 100 /* 100ms */
 483 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 484         uint16_t portid;
 485         uint8_t count, all_ports_up, print_flag = 0;
 486         struct rte_eth_link link;
 487
 488         printf("\nChecking link status");
 489         fflush(stdout);
 490         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 491                 all_ports_up = 1;
 492                 for (portid = 0; portid < port_num; portid++) {
 493                         if ((port_mask & (1 << portid)) == 0)
 494                                 continue;
 495                         memset(&link, 0, sizeof(link));
 496                         rte_eth_link_get_nowait(portid, &link);
 497                         /* print link status if flag set */
 498                         if (print_flag == 1) {
 499                                 if (link.link_status)
 500                                         printf(
 501                                         "Port%d Link Up. Speed %u Mbps - %s\n",
 502                                                 portid, link.link_speed,
 503                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 504                                         ("full-duplex") : ("half-duplex\n"));
 505                                 else
 506                                         printf("Port %d Link Down\n", portid);
 507                                 continue;
 508                         }
 509                         /* clear all_ports_up flag if any link down */
 510                         if (link.link_status == ETH_LINK_DOWN) {
 511                                 all_ports_up = 0;
 512                                 break;
 513                         }
 514                 }
 515                 /* after finally printing all link status, get out */
 516                 if (print_flag == 1)
 517                         break;
 518
 519                 if (all_ports_up == 0) {
 520                         printf(".");
 521                         fflush(stdout);
 522                         rte_delay_ms(CHECK_INTERVAL);
 523                 }
 524
 525                 /* set the print_flag if all ports up or timeout */
 526                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 527                         print_flag = 1;
 528                         printf("done\n");
 529                 }
 530         }
 531 }
 532
 533 static void
 534 dead_core(__rte_unused void *ptr_data, const int id_core)
 535 {
 536         if (terminate_signal_received)
 537                 return;
 538         printf("Dead core %i - restarting..\n", id_core);
 539         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 540                 rte_eal_wait_lcore(id_core);
 541                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 542         } else {
 543                 printf("..false positive!\n");
 544         }
 545 }
 546
 547 static void
 548 relay_core_state(void *ptr_data, const int id_core,
 549         const enum rte_keepalive_state core_state, uint64_t last_alive)
 550 {
 551         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 552                 id_core, core_state, last_alive);
 553 }
 554
 555 int
 556 main(int argc, char **argv)
 557 {
 558         struct lcore_queue_conf *qconf;
 559         struct rte_eth_dev_info dev_info;
 560         int ret;
 561         uint16_t nb_ports;
 562         uint16_t nb_ports_available;
 563         uint16_t portid, last_port;
 564         unsigned lcore_id, rx_lcore_id;
 565         unsigned nb_ports_in_mask = 0;
 566         struct sigaction signal_handler;
 567         struct rte_keepalive_shm *ka_shm;
 568
 569         memset(&signal_handler, 0, sizeof(signal_handler));
 570         terminate_signal_received = 0;
 571         signal_handler.sa_handler = &handle_sigterm;
 572         if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
 573                         sigaction(SIGTERM, &signal_handler, NULL) == -1)
 574                 rte_exit(EXIT_FAILURE, "SIGNAL\n");
 575
 576
 577         /* init EAL */
 578         ret = rte_eal_init(argc, argv);
 579         if (ret < 0)
 580                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 581         argc -= ret;
 582         argv += ret;
 583
 584         l2fwd_enabled_port_mask = 0;
 585
 586         /* parse application arguments (after the EAL ones) */
 587         ret = l2fwd_parse_args(argc, argv);
 588         if (ret < 0)
 589                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 590
 591         /* create the mbuf pool */
 592         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 593                 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 594         if (l2fwd_pktmbuf_pool == NULL)
 595                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 596
 597         nb_ports = rte_eth_dev_count();
 598         if (nb_ports == 0)
 599                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 600
 601         /* reset l2fwd_dst_ports */
 602         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 603                 l2fwd_dst_ports[portid] = 0;
 604         last_port = 0;
 605
 606         /*
 607          * Each logical core is assigned a dedicated TX queue on each port.
 608          */
 609         for (portid = 0; portid < nb_ports; portid++) {
 610                 /* skip ports that are not enabled */
 611                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 612                         continue;
 613
 614                 if (nb_ports_in_mask % 2) {
 615                         l2fwd_dst_ports[portid] = last_port;
 616                         l2fwd_dst_ports[last_port] = portid;
 617                 } else
 618                         last_port = portid;
 619
 620                 nb_ports_in_mask++;
 621
 622                 rte_eth_dev_info_get(portid, &dev_info);
 623         }
 624         if (nb_ports_in_mask % 2) {
 625                 printf("Notice: odd number of ports in portmask.\n");
 626                 l2fwd_dst_ports[last_port] = last_port;
 627         }
 628
 629         rx_lcore_id = 1;
 630         qconf = NULL;
 631
 632         /* Initialize the port/queue configuration of each logical core */
 633         for (portid = 0; portid < nb_ports; portid++) {
 634                 /* skip ports that are not enabled */
 635                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 636                         continue;
 637
 638                 /* get the lcore_id for this port */
 639                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 640                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 641                        l2fwd_rx_queue_per_lcore) {
 642                         rx_lcore_id++;
 643                         if (rx_lcore_id >= RTE_MAX_LCORE)
 644                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 645                 }
 646
 647                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 648                         /* Assigned a new logical core in the loop above. */
 649                         qconf = &lcore_queue_conf[rx_lcore_id];
 650
 651                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 652                 qconf->n_rx_port++;
 653                 printf("Lcore %u: RX port %u\n",
 654                         rx_lcore_id, portid);
 655         }
 656
 657         nb_ports_available = nb_ports;
 658
 659         /* Initialise each port */
 660         for (portid = 0; portid < nb_ports; portid++) {
 661                 /* skip ports that are not enabled */
 662                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 663                         printf("Skipping disabled port %u\n", portid);
 664                         nb_ports_available--;
 665                         continue;
 666                 }
 667                 /* init port */
 668                 printf("Initializing port %u... ", portid);
 669                 fflush(stdout);
 670                 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
 671                 if (ret < 0)
 672                         rte_exit(EXIT_FAILURE,
 673                                 "Cannot configure device: err=%d, port=%u\n",
 674                                 ret, portid);
 675
 676                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 677                                                        &nb_txd);
 678                 if (ret < 0)
 679                         rte_exit(EXIT_FAILURE,
 680                                 "Cannot adjust number of descriptors: err=%d, port=%u\n",
 681                                 ret, portid);
 682
 683                 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
 684
 685                 /* init one RX queue */
 686                 fflush(stdout);
 687                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 688                                              rte_eth_dev_socket_id(portid),
 689                                              NULL,
 690                                              l2fwd_pktmbuf_pool);
 691                 if (ret < 0)
 692                         rte_exit(EXIT_FAILURE,
 693                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 694                                 ret, portid);
 695
 696                 /* init one TX queue on each port */
 697                 fflush(stdout);
 698                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 699                                 rte_eth_dev_socket_id(portid),
 700                                 NULL);
 701                 if (ret < 0)
 702                         rte_exit(EXIT_FAILURE,
 703                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 704                                 ret, portid);
 705
 706                 /* Initialize TX buffers */
 707                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 708                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 709                                 rte_eth_dev_socket_id(portid));
 710                 if (tx_buffer[portid] == NULL)
 711                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 712                                                 portid);
 713
 714                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 715
 716                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 717                                 rte_eth_tx_buffer_count_callback,
 718                                 &port_statistics[portid].dropped);
 719                 if (ret < 0)
 720                         rte_exit(EXIT_FAILURE,
 721                         "Cannot set error callback for tx buffer on port %u\n",
 722                                  portid);
 723
 724                 /* Start device */
 725                 ret = rte_eth_dev_start(portid);
 726                 if (ret < 0)
 727                         rte_exit(EXIT_FAILURE,
 728                                 "rte_eth_dev_start:err=%d, port=%u\n",
 729                                   ret, portid);
 730
 731                 rte_eth_promiscuous_enable(portid);
 732
 733                 printf("Port %u, MAC address: "
 734                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 735                         portid,
 736                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 737                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 738                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 739                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 740                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 741                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 742
 743                 /* initialize port stats */
 744                 memset(&port_statistics, 0, sizeof(port_statistics));
 745         }
 746
 747         if (!nb_ports_available) {
 748                 rte_exit(EXIT_FAILURE,
 749                         "All available ports are disabled. Please set portmask.\n");
 750         }
 751
 752         check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
 753
 754         struct rte_timer hb_timer, stats_timer;
 755
 756         rte_timer_subsystem_init();
 757         rte_timer_init(&stats_timer);
 758
 759         ka_shm = NULL;
 760         if (check_period > 0) {
 761                 ka_shm = rte_keepalive_shm_create();
 762                 if (ka_shm == NULL)
 763                         rte_exit(EXIT_FAILURE,
 764                                 "rte_keepalive_shm_create() failed");
 765                 rte_global_keepalive_info =
 766                         rte_keepalive_create(&dead_core, ka_shm);
 767                 if (rte_global_keepalive_info == NULL)
 768                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 769                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 770                         relay_core_state, ka_shm);
 771                 rte_timer_init(&hb_timer);
 772                 if (rte_timer_reset(&hb_timer,
 773                                 (check_period * rte_get_timer_hz()) / 1000,
 774                                 PERIODICAL,
 775                                 rte_lcore_id(),
 776                                 (void(*)(struct rte_timer*, void*))
 777                                 &rte_keepalive_dispatch_pings,
 778                                 rte_global_keepalive_info
 779                                 ) != 0 )
 780                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 781         }
 782         if (timer_period > 0) {
 783                 if (rte_timer_reset(&stats_timer,
 784                                 (timer_period * rte_get_timer_hz()) / 1000,
 785                                 PERIODICAL,
 786                                 rte_lcore_id(),
 787                                 &print_stats, NULL
 788                                 ) != 0 )
 789                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 790         }
 791         /* launch per-lcore init on every slave lcore */
 792         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 793                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 794
 795                 if (qconf->n_rx_port == 0)
 796                         RTE_LOG(INFO, L2FWD,
 797                                 "lcore %u has nothing to do\n",
 798                                 lcore_id
 799                                 );
 800                 else {
 801                         rte_eal_remote_launch(
 802                                 l2fwd_launch_one_lcore,
 803                                 NULL,
 804                                 lcore_id
 805                                 );
 806                         rte_keepalive_register_core(rte_global_keepalive_info,
 807                                 lcore_id);
 808                 }
 809         }
 810         while (!terminate_signal_received) {
 811                 rte_timer_manage();
 812                 rte_delay_ms(5);
 813                 }
 814
 815         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 816                 if (rte_eal_wait_lcore(lcore_id) < 0)
 817                         return -1;
 818         }
 819
 820         if (ka_shm != NULL)
 821                 rte_keepalive_shm_cleanup(ka_shm);
 822         return 0;
 823 }