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_memzone.h>
  55 #include <rte_eal.h>
  56 #include <rte_per_lcore.h>
  57 #include <rte_launch.h>
  58 #include <rte_atomic.h>
  59 #include <rte_cycles.h>
  60 #include <rte_prefetch.h>
  61 #include <rte_lcore.h>
  62 #include <rte_per_lcore.h>
  63 #include <rte_branch_prediction.h>
  64 #include <rte_interrupts.h>
  65 #include <rte_pci.h>
  66 #include <rte_random.h>
  67 #include <rte_debug.h>
  68 #include <rte_ether.h>
  69 #include <rte_ethdev.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   = 1, /**< 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 /* Termination signalling */
 147 static int terminate_signal_received;
 148
 149 /* Termination signal handler */
 150 static void handle_sigterm(__rte_unused int value)
 151 {
 152         terminate_signal_received = 1;
 153 }
 154
 155 /* Print out statistics on packets dropped */
 156 static void
 157 print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 158         __attribute__((unused)) void *ptr_data)
 159 {
 160         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 161         unsigned portid;
 162
 163         total_packets_dropped = 0;
 164         total_packets_tx = 0;
 165         total_packets_rx = 0;
 166
 167         const char clr[] = { 27, '[', '2', 'J', '\0' };
 168         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 169
 170                 /* Clear screen and move to top left */
 171         printf("%s%s", clr, topLeft);
 172
 173         printf("\nPort statistics ====================================");
 174
 175         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 176                 /* skip disabled ports */
 177                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 178                         continue;
 179                 printf("\nStatistics for port %u ------------------------------"
 180                            "\nPackets sent: %24"PRIu64
 181                            "\nPackets received: %20"PRIu64
 182                            "\nPackets dropped: %21"PRIu64,
 183                            portid,
 184                            port_statistics[portid].tx,
 185                            port_statistics[portid].rx,
 186                            port_statistics[portid].dropped);
 187
 188                 total_packets_dropped += port_statistics[portid].dropped;
 189                 total_packets_tx += port_statistics[portid].tx;
 190                 total_packets_rx += port_statistics[portid].rx;
 191         }
 192         printf("\nAggregate statistics ==============================="
 193                    "\nTotal packets sent: %18"PRIu64
 194                    "\nTotal packets received: %14"PRIu64
 195                    "\nTotal packets dropped: %15"PRIu64,
 196                    total_packets_tx,
 197                    total_packets_rx,
 198                    total_packets_dropped);
 199         printf("\n====================================================\n");
 200 }
 201
 202 static void
 203 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 204 {
 205         struct ether_hdr *eth;
 206         void *tmp;
 207         int sent;
 208         unsigned dst_port;
 209         struct rte_eth_dev_tx_buffer *buffer;
 210
 211         dst_port = l2fwd_dst_ports[portid];
 212         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 213
 214         /* 02:00:00:00:00:xx */
 215         tmp = &eth->d_addr.addr_bytes[0];
 216         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 217
 218         /* src addr */
 219         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 220
 221         buffer = tx_buffer[dst_port];
 222         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 223         if (sent)
 224                 port_statistics[dst_port].tx += sent;
 225 }
 226
 227 /* main processing loop */
 228 static void
 229 l2fwd_main_loop(void)
 230 {
 231         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 232         struct rte_mbuf *m;
 233         int sent;
 234         unsigned lcore_id;
 235         uint64_t prev_tsc, diff_tsc, cur_tsc;
 236         unsigned i, j, portid, nb_rx;
 237         struct lcore_queue_conf *qconf;
 238         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 239                 / US_PER_S * BURST_TX_DRAIN_US;
 240         struct rte_eth_dev_tx_buffer *buffer;
 241
 242         prev_tsc = 0;
 243
 244         lcore_id = rte_lcore_id();
 245         qconf = &lcore_queue_conf[lcore_id];
 246
 247         if (qconf->n_rx_port == 0) {
 248                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 249                 return;
 250         }
 251
 252         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 253
 254         for (i = 0; i < qconf->n_rx_port; i++) {
 255
 256                 portid = qconf->rx_port_list[i];
 257                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 258                         portid);
 259         }
 260
 261         uint64_t tsc_initial = rte_rdtsc();
 262         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 263
 264         while (!terminate_signal_received) {
 265                 /* Keepalive heartbeat */
 266                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 267
 268                 cur_tsc = rte_rdtsc();
 269
 270                 /*
 271                  * Die randomly within 7 secs for demo purposes if
 272                  * keepalive enabled
 273                  */
 274                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 275                         break;
 276
 277                 /*
 278                  * TX burst queue drain
 279                  */
 280                 diff_tsc = cur_tsc - prev_tsc;
 281                 if (unlikely(diff_tsc > drain_tsc)) {
 282
 283                         for (i = 0; i < qconf->n_rx_port; i++) {
 284
 285                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 286                                 buffer = tx_buffer[portid];
 287
 288                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 289                                 if (sent)
 290                                         port_statistics[portid].tx += sent;
 291
 292                         }
 293
 294                         prev_tsc = cur_tsc;
 295                 }
 296
 297                 /*
 298                  * Read packet from RX queues
 299                  */
 300                 for (i = 0; i < qconf->n_rx_port; i++) {
 301
 302                         portid = qconf->rx_port_list[i];
 303                         nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
 304                                                  pkts_burst, MAX_PKT_BURST);
 305
 306                         port_statistics[portid].rx += nb_rx;
 307
 308                         for (j = 0; j < nb_rx; j++) {
 309                                 m = pkts_burst[j];
 310                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 311                                 l2fwd_simple_forward(m, portid);
 312                         }
 313                 }
 314         }
 315 }
 316
 317 static int
 318 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 319 {
 320         l2fwd_main_loop();
 321         return 0;
 322 }
 323
 324 /* display usage */
 325 static void
 326 l2fwd_usage(const char *prgname)
 327 {
 328         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 329                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 330                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 331                "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
 332                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 333                prgname);
 334 }
 335
 336 static int
 337 l2fwd_parse_portmask(const char *portmask)
 338 {
 339         char *end = NULL;
 340         unsigned long pm;
 341
 342         /* parse hexadecimal string */
 343         pm = strtoul(portmask, &end, 16);
 344         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 345                 return -1;
 346
 347         if (pm == 0)
 348                 return -1;
 349
 350         return pm;
 351 }
 352
 353 static unsigned int
 354 l2fwd_parse_nqueue(const char *q_arg)
 355 {
 356         char *end = NULL;
 357         unsigned long n;
 358
 359         /* parse hexadecimal string */
 360         n = strtoul(q_arg, &end, 10);
 361         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 362                 return 0;
 363         if (n == 0)
 364                 return 0;
 365         if (n >= MAX_RX_QUEUE_PER_LCORE)
 366                 return 0;
 367
 368         return n;
 369 }
 370
 371 static int
 372 l2fwd_parse_timer_period(const char *q_arg)
 373 {
 374         char *end = NULL;
 375         int n;
 376
 377         /* parse number string */
 378         n = strtol(q_arg, &end, 10);
 379         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 380                 return -1;
 381         if (n >= MAX_TIMER_PERIOD)
 382                 return -1;
 383
 384         return n;
 385 }
 386
 387 static int
 388 l2fwd_parse_check_period(const char *q_arg)
 389 {
 390         char *end = NULL;
 391         int n;
 392
 393         /* parse number string */
 394         n = strtol(q_arg, &end, 10);
 395         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 396                 return -1;
 397         if (n >= MAX_TIMER_PERIOD)
 398                 return -1;
 399
 400         return n;
 401 }
 402
 403 /* Parse the argument given in the command line of the application */
 404 static int
 405 l2fwd_parse_args(int argc, char **argv)
 406 {
 407         int opt, ret;
 408         char **argvopt;
 409         int option_index;
 410         char *prgname = argv[0];
 411         static struct option lgopts[] = {
 412                 {NULL, 0, 0, 0}
 413         };
 414
 415         argvopt = argv;
 416
 417         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 418                                   lgopts, &option_index)) != EOF) {
 419
 420                 switch (opt) {
 421                 /* portmask */
 422                 case 'p':
 423                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 424                         if (l2fwd_enabled_port_mask == 0) {
 425                                 printf("invalid portmask\n");
 426                                 l2fwd_usage(prgname);
 427                                 return -1;
 428                         }
 429                         break;
 430
 431                 /* nqueue */
 432                 case 'q':
 433                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 434                         if (l2fwd_rx_queue_per_lcore == 0) {
 435                                 printf("invalid queue number\n");
 436                                 l2fwd_usage(prgname);
 437                                 return -1;
 438                         }
 439                         break;
 440
 441                 /* timer period */
 442                 case 'T':
 443                         timer_period = l2fwd_parse_timer_period(optarg)
 444                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 445                         if (timer_period < 0) {
 446                                 printf("invalid timer period\n");
 447                                 l2fwd_usage(prgname);
 448                                 return -1;
 449                         }
 450                         break;
 451
 452                 /* Check period */
 453                 case 'K':
 454                         check_period = l2fwd_parse_check_period(optarg);
 455                         if (check_period < 0) {
 456                                 printf("invalid check period\n");
 457                                 l2fwd_usage(prgname);
 458                                 return -1;
 459                         }
 460                         break;
 461
 462                 /* long options */
 463                 case 0:
 464                         l2fwd_usage(prgname);
 465                         return -1;
 466
 467                 default:
 468                         l2fwd_usage(prgname);
 469                         return -1;
 470                 }
 471         }
 472
 473         if (optind >= 0)
 474                 argv[optind-1] = prgname;
 475
 476         ret = optind-1;
 477         optind = 1; /* reset getopt lib */
 478         return ret;
 479 }
 480
 481 /* Check the link status of all ports in up to 9s, and print them finally */
 482 static void
 483 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 484 {
 485 #define CHECK_INTERVAL 100 /* 100ms */
 486 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 487         uint8_t portid, count, all_ports_up, print_flag = 0;
 488         struct rte_eth_link link;
 489
 490         printf("\nChecking link status");
 491         fflush(stdout);
 492         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 493                 all_ports_up = 1;
 494                 for (portid = 0; portid < port_num; portid++) {
 495                         if ((port_mask & (1 << portid)) == 0)
 496                                 continue;
 497                         memset(&link, 0, sizeof(link));
 498                         rte_eth_link_get_nowait(portid, &link);
 499                         /* print link status if flag set */
 500                         if (print_flag == 1) {
 501                                 if (link.link_status)
 502                                         printf("Port %d Link Up - speed %u "
 503                                                 "Mbps - %s\n", (uint8_t)portid,
 504                                                 (unsigned)link.link_speed,
 505                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 506                                         ("full-duplex") : ("half-duplex\n"));
 507                                 else
 508                                         printf("Port %d Link Down\n",
 509                                                 (uint8_t)portid);
 510                                 continue;
 511                         }
 512                         /* clear all_ports_up flag if any link down */
 513                         if (link.link_status == ETH_LINK_DOWN) {
 514                                 all_ports_up = 0;
 515                                 break;
 516                         }
 517                 }
 518                 /* after finally printing all link status, get out */
 519                 if (print_flag == 1)
 520                         break;
 521
 522                 if (all_ports_up == 0) {
 523                         printf(".");
 524                         fflush(stdout);
 525                         rte_delay_ms(CHECK_INTERVAL);
 526                 }
 527
 528                 /* set the print_flag if all ports up or timeout */
 529                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 530                         print_flag = 1;
 531                         printf("done\n");
 532                 }
 533         }
 534 }
 535
 536 static void
 537 dead_core(__rte_unused void *ptr_data, const int id_core)
 538 {
 539         if (terminate_signal_received)
 540                 return;
 541         printf("Dead core %i - restarting..\n", id_core);
 542         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 543                 rte_eal_wait_lcore(id_core);
 544                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 545         } else {
 546                 printf("..false positive!\n");
 547         }
 548 }
 549
 550 static void
 551 relay_core_state(void *ptr_data, const int id_core,
 552         const enum rte_keepalive_state core_state, uint64_t last_alive)
 553 {
 554         rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
 555                 id_core, core_state, last_alive);
 556 }
 557
 558 int
 559 main(int argc, char **argv)
 560 {
 561         struct lcore_queue_conf *qconf;
 562         struct rte_eth_dev_info dev_info;
 563         int ret;
 564         uint8_t nb_ports;
 565         uint8_t nb_ports_available;
 566         uint8_t portid, last_port;
 567         unsigned lcore_id, rx_lcore_id;
 568         unsigned nb_ports_in_mask = 0;
 569         struct sigaction signal_handler;
 570         struct rte_keepalive_shm *ka_shm;
 571
 572         memset(&signal_handler, 0, sizeof(signal_handler));
 573         terminate_signal_received = 0;
 574         signal_handler.sa_handler = &handle_sigterm;
 575         if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
 576                         sigaction(SIGTERM, &signal_handler, NULL) == -1)
 577                 rte_exit(EXIT_FAILURE, "SIGNAL\n");
 578
 579
 580         /* init EAL */
 581         ret = rte_eal_init(argc, argv);
 582         if (ret < 0)
 583                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 584         argc -= ret;
 585         argv += ret;
 586
 587         l2fwd_enabled_port_mask = 0;
 588
 589         /* parse application arguments (after the EAL ones) */
 590         ret = l2fwd_parse_args(argc, argv);
 591         if (ret < 0)
 592                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 593
 594         /* create the mbuf pool */
 595         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 596                 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 597         if (l2fwd_pktmbuf_pool == NULL)
 598                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 599
 600         nb_ports = rte_eth_dev_count();
 601         if (nb_ports == 0)
 602                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 603
 604         /* reset l2fwd_dst_ports */
 605         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 606                 l2fwd_dst_ports[portid] = 0;
 607         last_port = 0;
 608
 609         /*
 610          * Each logical core is assigned a dedicated TX queue on each port.
 611          */
 612         for (portid = 0; portid < nb_ports; portid++) {
 613                 /* skip ports that are not enabled */
 614                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 615                         continue;
 616
 617                 if (nb_ports_in_mask % 2) {
 618                         l2fwd_dst_ports[portid] = last_port;
 619                         l2fwd_dst_ports[last_port] = portid;
 620                 } else
 621                         last_port = portid;
 622
 623                 nb_ports_in_mask++;
 624
 625                 rte_eth_dev_info_get(portid, &dev_info);
 626         }
 627         if (nb_ports_in_mask % 2) {
 628                 printf("Notice: odd number of ports in portmask.\n");
 629                 l2fwd_dst_ports[last_port] = last_port;
 630         }
 631
 632         rx_lcore_id = 1;
 633         qconf = NULL;
 634
 635         /* Initialize the port/queue configuration of each logical core */
 636         for (portid = 0; portid < nb_ports; portid++) {
 637                 /* skip ports that are not enabled */
 638                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 639                         continue;
 640
 641                 /* get the lcore_id for this port */
 642                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 643                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 644                        l2fwd_rx_queue_per_lcore) {
 645                         rx_lcore_id++;
 646                         if (rx_lcore_id >= RTE_MAX_LCORE)
 647                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 648                 }
 649
 650                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 651                         /* Assigned a new logical core in the loop above. */
 652                         qconf = &lcore_queue_conf[rx_lcore_id];
 653
 654                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 655                 qconf->n_rx_port++;
 656                 printf("Lcore %u: RX port %u\n",
 657                         rx_lcore_id, (unsigned) portid);
 658         }
 659
 660         nb_ports_available = nb_ports;
 661
 662         /* Initialise each port */
 663         for (portid = 0; portid < nb_ports; portid++) {
 664                 /* skip ports that are not enabled */
 665                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 666                         printf("Skipping disabled port %u\n",
 667                                 (unsigned) portid);
 668                         nb_ports_available--;
 669                         continue;
 670                 }
 671                 /* init port */
 672                 printf("Initializing port %u... ", (unsigned) portid);
 673                 fflush(stdout);
 674                 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
 675                 if (ret < 0)
 676                         rte_exit(EXIT_FAILURE,
 677                                 "Cannot configure device: err=%d, port=%u\n",
 678                                 ret, (unsigned) portid);
 679
 680                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 681                                                        &nb_txd);
 682                 if (ret < 0)
 683                         rte_exit(EXIT_FAILURE,
 684                                 "Cannot adjust number of descriptors: err=%d, port=%u\n",
 685                                 ret, (unsigned) portid);
 686
 687                 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
 688
 689                 /* init one RX queue */
 690                 fflush(stdout);
 691                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 692                                              rte_eth_dev_socket_id(portid),
 693                                              NULL,
 694                                              l2fwd_pktmbuf_pool);
 695                 if (ret < 0)
 696                         rte_exit(EXIT_FAILURE,
 697                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 698                                 ret, (unsigned) portid);
 699
 700                 /* init one TX queue on each port */
 701                 fflush(stdout);
 702                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 703                                 rte_eth_dev_socket_id(portid),
 704                                 NULL);
 705                 if (ret < 0)
 706                         rte_exit(EXIT_FAILURE,
 707                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 708                                 ret, (unsigned) portid);
 709
 710                 /* Initialize TX buffers */
 711                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 712                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 713                                 rte_eth_dev_socket_id(portid));
 714                 if (tx_buffer[portid] == NULL)
 715                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 716                                         (unsigned) portid);
 717
 718                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 719
 720                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 721                                 rte_eth_tx_buffer_count_callback,
 722                                 &port_statistics[portid].dropped);
 723                 if (ret < 0)
 724                                 rte_exit(EXIT_FAILURE, "Cannot set error callback for "
 725                                                 "tx buffer on port %u\n", (unsigned) portid);
 726
 727                 /* Start device */
 728                 ret = rte_eth_dev_start(portid);
 729                 if (ret < 0)
 730                         rte_exit(EXIT_FAILURE,
 731                                 "rte_eth_dev_start:err=%d, port=%u\n",
 732                                   ret, (unsigned) portid);
 733
 734                 rte_eth_promiscuous_enable(portid);
 735
 736                 printf("Port %u, MAC address: "
 737                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 738                         (unsigned) portid,
 739                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 740                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 741                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 742                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 743                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 744                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 745
 746                 /* initialize port stats */
 747                 memset(&port_statistics, 0, sizeof(port_statistics));
 748         }
 749
 750         if (!nb_ports_available) {
 751                 rte_exit(EXIT_FAILURE,
 752                         "All available ports are disabled. Please set portmask.\n");
 753         }
 754
 755         check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
 756
 757         struct rte_timer hb_timer, stats_timer;
 758
 759         rte_timer_subsystem_init();
 760         rte_timer_init(&stats_timer);
 761
 762         ka_shm = NULL;
 763         if (check_period > 0) {
 764                 ka_shm = rte_keepalive_shm_create();
 765                 if (ka_shm == NULL)
 766                         rte_exit(EXIT_FAILURE,
 767                                 "rte_keepalive_shm_create() failed");
 768                 rte_global_keepalive_info =
 769                         rte_keepalive_create(&dead_core, ka_shm);
 770                 if (rte_global_keepalive_info == NULL)
 771                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 772                 rte_keepalive_register_relay_callback(rte_global_keepalive_info,
 773                         relay_core_state, ka_shm);
 774                 rte_timer_init(&hb_timer);
 775                 if (rte_timer_reset(&hb_timer,
 776                                 (check_period * rte_get_timer_hz()) / 1000,
 777                                 PERIODICAL,
 778                                 rte_lcore_id(),
 779                                 (void(*)(struct rte_timer*, void*))
 780                                 &rte_keepalive_dispatch_pings,
 781                                 rte_global_keepalive_info
 782                                 ) != 0 )
 783                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 784         }
 785         if (timer_period > 0) {
 786                 if (rte_timer_reset(&stats_timer,
 787                                 (timer_period * rte_get_timer_hz()) / 1000,
 788                                 PERIODICAL,
 789                                 rte_lcore_id(),
 790                                 &print_stats, NULL
 791                                 ) != 0 )
 792                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 793         }
 794         /* launch per-lcore init on every slave lcore */
 795         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 796                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 797
 798                 if (qconf->n_rx_port == 0)
 799                         RTE_LOG(INFO, L2FWD,
 800                                 "lcore %u has nothing to do\n",
 801                                 lcore_id
 802                                 );
 803                 else {
 804                         rte_eal_remote_launch(
 805                                 l2fwd_launch_one_lcore,
 806                                 NULL,
 807                                 lcore_id
 808                                 );
 809                         rte_keepalive_register_core(rte_global_keepalive_info,
 810                                 lcore_id);
 811                 }
 812         }
 813         while (!terminate_signal_received) {
 814                 rte_timer_manage();
 815                 rte_delay_ms(5);
 816                 }
 817
 818         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 819                 if (rte_eal_wait_lcore(lcore_id) < 0)
 820                         return -1;
 821         }
 822
 823         if (ka_shm != NULL)
 824                 rte_keepalive_shm_cleanup(ka_shm);
 825         return 0;
 826 }