1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2016 Intel Corporation 3 */ 4 5 #include <stdio.h> 6 #include <stdlib.h> 7 #include <string.h> 8 #include <stdint.h> 9 #include <inttypes.h> 10 #include <sys/types.h> 11 #include <sys/queue.h> 12 #include <netinet/in.h> 13 #include <setjmp.h> 14 #include <stdarg.h> 15 #include <ctype.h> 16 #include <errno.h> 17 #include <getopt.h> 18 #include <signal.h> 19 #include <stdbool.h> 20 21 #include <rte_common.h> 22 #include <rte_log.h> 23 #include <rte_malloc.h> 24 #include <rte_memory.h> 25 #include <rte_memcpy.h> 26 #include <rte_eal.h> 27 #include <rte_launch.h> 28 #include <rte_atomic.h> 29 #include <rte_cycles.h> 30 #include <rte_prefetch.h> 31 #include <rte_lcore.h> 32 #include <rte_per_lcore.h> 33 #include <rte_branch_prediction.h> 34 #include <rte_interrupts.h> 35 #include <rte_random.h> 36 #include <rte_debug.h> 37 #include <rte_ether.h> 38 #include <rte_ethdev.h> 39 #include <rte_mempool.h> 40 #include <rte_mbuf.h> 41 42 static volatile bool force_quit; 43 44 /* MAC updating enabled by default */ 45 static int mac_updating = 1; 46 47 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1 48 49 #define MAX_PKT_BURST 32 50 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ 51 #define MEMPOOL_CACHE_SIZE 256 52 53 /* 54 * Configurable number of RX/TX ring descriptors 55 */ 56 #define RTE_TEST_RX_DESC_DEFAULT 128 57 #define RTE_TEST_TX_DESC_DEFAULT 512 58 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 59 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; 60 61 /* ethernet addresses of ports */ 62 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS]; 63 64 /* mask of enabled ports */ 65 static uint32_t l2fwd_enabled_port_mask = 0; 66 67 /* list of enabled ports */ 68 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS]; 69 70 static unsigned int l2fwd_rx_queue_per_lcore = 1; 71 72 #define MAX_RX_QUEUE_PER_LCORE 16 73 #define MAX_TX_QUEUE_PER_PORT 16 74 struct lcore_queue_conf { 75 unsigned n_rx_port; 76 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; 77 } __rte_cache_aligned; 78 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; 79 80 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 81 82 static struct rte_eth_conf port_conf = { 83 .rxmode = { 84 .split_hdr_size = 0, 85 .ignore_offload_bitfield = 1, 86 .offloads = DEV_RX_OFFLOAD_CRC_STRIP, 87 }, 88 .txmode = { 89 .mq_mode = ETH_MQ_TX_NONE, 90 }, 91 }; 92 93 struct rte_mempool * l2fwd_pktmbuf_pool = NULL; 94 95 /* Per-port statistics struct */ 96 struct l2fwd_port_statistics { 97 uint64_t tx; 98 uint64_t rx; 99 uint64_t dropped; 100 } __rte_cache_aligned; 101 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS]; 102 103 #define MAX_TIMER_PERIOD 86400 /* 1 day max */ 104 /* A tsc-based timer responsible for triggering statistics printout */ 105 static uint64_t timer_period = 10; /* default period is 10 seconds */ 106 107 /* Print out statistics on packets dropped */ 108 static void 109 print_stats(void) 110 { 111 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx; 112 unsigned portid; 113 114 total_packets_dropped = 0; 115 total_packets_tx = 0; 116 total_packets_rx = 0; 117 118 const char clr[] = { 27, '[', '2', 'J', '\0' }; 119 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' }; 120 121 /* Clear screen and move to top left */ 122 printf("%s%s", clr, topLeft); 123 124 printf("\nPort statistics ===================================="); 125 126 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { 127 /* skip disabled ports */ 128 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 129 continue; 130 printf("\nStatistics for port %u ------------------------------" 131 "\nPackets sent: %24"PRIu64 132 "\nPackets received: %20"PRIu64 133 "\nPackets dropped: %21"PRIu64, 134 portid, 135 port_statistics[portid].tx, 136 port_statistics[portid].rx, 137 port_statistics[portid].dropped); 138 139 total_packets_dropped += port_statistics[portid].dropped; 140 total_packets_tx += port_statistics[portid].tx; 141 total_packets_rx += port_statistics[portid].rx; 142 } 143 printf("\nAggregate statistics ===============================" 144 "\nTotal packets sent: %18"PRIu64 145 "\nTotal packets received: %14"PRIu64 146 "\nTotal packets dropped: %15"PRIu64, 147 total_packets_tx, 148 total_packets_rx, 149 total_packets_dropped); 150 printf("\n====================================================\n"); 151 } 152 153 static void 154 l2fwd_mac_updating(struct rte_mbuf *m, unsigned dest_portid) 155 { 156 struct ether_hdr *eth; 157 void *tmp; 158 159 eth = rte_pktmbuf_mtod(m, struct ether_hdr *); 160 161 /* 02:00:00:00:00:xx */ 162 tmp = ð->d_addr.addr_bytes[0]; 163 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40); 164 165 /* src addr */ 166 ether_addr_copy(&l2fwd_ports_eth_addr[dest_portid], ð->s_addr); 167 } 168 169 static void 170 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) 171 { 172 unsigned dst_port; 173 int sent; 174 struct rte_eth_dev_tx_buffer *buffer; 175 176 dst_port = l2fwd_dst_ports[portid]; 177 178 if (mac_updating) 179 l2fwd_mac_updating(m, dst_port); 180 181 buffer = tx_buffer[dst_port]; 182 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); 183 if (sent) 184 port_statistics[dst_port].tx += sent; 185 } 186 187 /* main processing loop */ 188 static void 189 l2fwd_main_loop(void) 190 { 191 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 192 struct rte_mbuf *m; 193 int sent; 194 unsigned lcore_id; 195 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc; 196 unsigned i, j, portid, nb_rx; 197 struct lcore_queue_conf *qconf; 198 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * 199 BURST_TX_DRAIN_US; 200 struct rte_eth_dev_tx_buffer *buffer; 201 202 prev_tsc = 0; 203 timer_tsc = 0; 204 205 lcore_id = rte_lcore_id(); 206 qconf = &lcore_queue_conf[lcore_id]; 207 208 if (qconf->n_rx_port == 0) { 209 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id); 210 return; 211 } 212 213 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id); 214 215 for (i = 0; i < qconf->n_rx_port; i++) { 216 217 portid = qconf->rx_port_list[i]; 218 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id, 219 portid); 220 221 } 222 223 while (!force_quit) { 224 225 cur_tsc = rte_rdtsc(); 226 227 /* 228 * TX burst queue drain 229 */ 230 diff_tsc = cur_tsc - prev_tsc; 231 if (unlikely(diff_tsc > drain_tsc)) { 232 233 for (i = 0; i < qconf->n_rx_port; i++) { 234 235 portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; 236 buffer = tx_buffer[portid]; 237 238 sent = rte_eth_tx_buffer_flush(portid, 0, buffer); 239 if (sent) 240 port_statistics[portid].tx += sent; 241 242 } 243 244 /* if timer is enabled */ 245 if (timer_period > 0) { 246 247 /* advance the timer */ 248 timer_tsc += diff_tsc; 249 250 /* if timer has reached its timeout */ 251 if (unlikely(timer_tsc >= timer_period)) { 252 253 /* do this only on master core */ 254 if (lcore_id == rte_get_master_lcore()) { 255 print_stats(); 256 /* reset the timer */ 257 timer_tsc = 0; 258 } 259 } 260 } 261 262 prev_tsc = cur_tsc; 263 } 264 265 /* 266 * Read packet from RX queues 267 */ 268 for (i = 0; i < qconf->n_rx_port; i++) { 269 270 portid = qconf->rx_port_list[i]; 271 nb_rx = rte_eth_rx_burst(portid, 0, 272 pkts_burst, MAX_PKT_BURST); 273 274 port_statistics[portid].rx += nb_rx; 275 276 for (j = 0; j < nb_rx; j++) { 277 m = pkts_burst[j]; 278 rte_prefetch0(rte_pktmbuf_mtod(m, void *)); 279 l2fwd_simple_forward(m, portid); 280 } 281 } 282 } 283 } 284 285 static int 286 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy) 287 { 288 l2fwd_main_loop(); 289 return 0; 290 } 291 292 /* display usage */ 293 static void 294 l2fwd_usage(const char *prgname) 295 { 296 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" 297 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 298 " -q NQ: number of queue (=ports) per lcore (default is 1)\n" 299 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n" 300 " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n" 301 " When enabled:\n" 302 " - The source MAC address is replaced by the TX port MAC address\n" 303 " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n", 304 prgname); 305 } 306 307 static int 308 l2fwd_parse_portmask(const char *portmask) 309 { 310 char *end = NULL; 311 unsigned long pm; 312 313 /* parse hexadecimal string */ 314 pm = strtoul(portmask, &end, 16); 315 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 316 return -1; 317 318 if (pm == 0) 319 return -1; 320 321 return pm; 322 } 323 324 static unsigned int 325 l2fwd_parse_nqueue(const char *q_arg) 326 { 327 char *end = NULL; 328 unsigned long n; 329 330 /* parse hexadecimal string */ 331 n = strtoul(q_arg, &end, 10); 332 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 333 return 0; 334 if (n == 0) 335 return 0; 336 if (n >= MAX_RX_QUEUE_PER_LCORE) 337 return 0; 338 339 return n; 340 } 341 342 static int 343 l2fwd_parse_timer_period(const char *q_arg) 344 { 345 char *end = NULL; 346 int n; 347 348 /* parse number string */ 349 n = strtol(q_arg, &end, 10); 350 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 351 return -1; 352 if (n >= MAX_TIMER_PERIOD) 353 return -1; 354 355 return n; 356 } 357 358 static const char short_options[] = 359 "p:" /* portmask */ 360 "q:" /* number of queues */ 361 "T:" /* timer period */ 362 ; 363 364 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating" 365 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" 366 367 enum { 368 /* long options mapped to a short option */ 369 370 /* first long only option value must be >= 256, so that we won't 371 * conflict with short options */ 372 CMD_LINE_OPT_MIN_NUM = 256, 373 }; 374 375 static const struct option lgopts[] = { 376 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1}, 377 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0}, 378 {NULL, 0, 0, 0} 379 }; 380 381 /* Parse the argument given in the command line of the application */ 382 static int 383 l2fwd_parse_args(int argc, char **argv) 384 { 385 int opt, ret, timer_secs; 386 char **argvopt; 387 int option_index; 388 char *prgname = argv[0]; 389 390 argvopt = argv; 391 392 while ((opt = getopt_long(argc, argvopt, short_options, 393 lgopts, &option_index)) != EOF) { 394 395 switch (opt) { 396 /* portmask */ 397 case 'p': 398 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg); 399 if (l2fwd_enabled_port_mask == 0) { 400 printf("invalid portmask\n"); 401 l2fwd_usage(prgname); 402 return -1; 403 } 404 break; 405 406 /* nqueue */ 407 case 'q': 408 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg); 409 if (l2fwd_rx_queue_per_lcore == 0) { 410 printf("invalid queue number\n"); 411 l2fwd_usage(prgname); 412 return -1; 413 } 414 break; 415 416 /* timer period */ 417 case 'T': 418 timer_secs = l2fwd_parse_timer_period(optarg); 419 if (timer_secs < 0) { 420 printf("invalid timer period\n"); 421 l2fwd_usage(prgname); 422 return -1; 423 } 424 timer_period = timer_secs; 425 break; 426 427 /* long options */ 428 case 0: 429 break; 430 431 default: 432 l2fwd_usage(prgname); 433 return -1; 434 } 435 } 436 437 if (optind >= 0) 438 argv[optind-1] = prgname; 439 440 ret = optind-1; 441 optind = 1; /* reset getopt lib */ 442 return ret; 443 } 444 445 /* Check the link status of all ports in up to 9s, and print them finally */ 446 static void 447 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask) 448 { 449 #define CHECK_INTERVAL 100 /* 100ms */ 450 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 451 uint16_t portid; 452 uint8_t count, all_ports_up, print_flag = 0; 453 struct rte_eth_link link; 454 455 printf("\nChecking link status"); 456 fflush(stdout); 457 for (count = 0; count <= MAX_CHECK_TIME; count++) { 458 if (force_quit) 459 return; 460 all_ports_up = 1; 461 for (portid = 0; portid < port_num; portid++) { 462 if (force_quit) 463 return; 464 if ((port_mask & (1 << portid)) == 0) 465 continue; 466 memset(&link, 0, sizeof(link)); 467 rte_eth_link_get_nowait(portid, &link); 468 /* print link status if flag set */ 469 if (print_flag == 1) { 470 if (link.link_status) 471 printf( 472 "Port%d Link Up. Speed %u Mbps - %s\n", 473 portid, link.link_speed, 474 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 475 ("full-duplex") : ("half-duplex\n")); 476 else 477 printf("Port %d Link Down\n", portid); 478 continue; 479 } 480 /* clear all_ports_up flag if any link down */ 481 if (link.link_status == ETH_LINK_DOWN) { 482 all_ports_up = 0; 483 break; 484 } 485 } 486 /* after finally printing all link status, get out */ 487 if (print_flag == 1) 488 break; 489 490 if (all_ports_up == 0) { 491 printf("."); 492 fflush(stdout); 493 rte_delay_ms(CHECK_INTERVAL); 494 } 495 496 /* set the print_flag if all ports up or timeout */ 497 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 498 print_flag = 1; 499 printf("done\n"); 500 } 501 } 502 } 503 504 static void 505 signal_handler(int signum) 506 { 507 if (signum == SIGINT || signum == SIGTERM) { 508 printf("\n\nSignal %d received, preparing to exit...\n", 509 signum); 510 force_quit = true; 511 } 512 } 513 514 int 515 main(int argc, char **argv) 516 { 517 struct lcore_queue_conf *qconf; 518 int ret; 519 uint16_t nb_ports; 520 uint16_t nb_ports_available; 521 uint16_t portid, last_port; 522 unsigned lcore_id, rx_lcore_id; 523 unsigned nb_ports_in_mask = 0; 524 unsigned int nb_lcores = 0; 525 unsigned int nb_mbufs; 526 527 /* init EAL */ 528 ret = rte_eal_init(argc, argv); 529 if (ret < 0) 530 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); 531 argc -= ret; 532 argv += ret; 533 534 force_quit = false; 535 signal(SIGINT, signal_handler); 536 signal(SIGTERM, signal_handler); 537 538 /* parse application arguments (after the EAL ones) */ 539 ret = l2fwd_parse_args(argc, argv); 540 if (ret < 0) 541 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n"); 542 543 printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled"); 544 545 /* convert to number of cycles */ 546 timer_period *= rte_get_timer_hz(); 547 548 nb_ports = rte_eth_dev_count(); 549 if (nb_ports == 0) 550 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); 551 552 /* reset l2fwd_dst_ports */ 553 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) 554 l2fwd_dst_ports[portid] = 0; 555 last_port = 0; 556 557 /* 558 * Each logical core is assigned a dedicated TX queue on each port. 559 */ 560 for (portid = 0; portid < nb_ports; portid++) { 561 /* skip ports that are not enabled */ 562 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 563 continue; 564 565 if (nb_ports_in_mask % 2) { 566 l2fwd_dst_ports[portid] = last_port; 567 l2fwd_dst_ports[last_port] = portid; 568 } 569 else 570 last_port = portid; 571 572 nb_ports_in_mask++; 573 } 574 if (nb_ports_in_mask % 2) { 575 printf("Notice: odd number of ports in portmask.\n"); 576 l2fwd_dst_ports[last_port] = last_port; 577 } 578 579 rx_lcore_id = 0; 580 qconf = NULL; 581 582 /* Initialize the port/queue configuration of each logical core */ 583 for (portid = 0; portid < nb_ports; portid++) { 584 /* skip ports that are not enabled */ 585 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 586 continue; 587 588 /* get the lcore_id for this port */ 589 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 590 lcore_queue_conf[rx_lcore_id].n_rx_port == 591 l2fwd_rx_queue_per_lcore) { 592 rx_lcore_id++; 593 if (rx_lcore_id >= RTE_MAX_LCORE) 594 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 595 } 596 597 if (qconf != &lcore_queue_conf[rx_lcore_id]) { 598 /* Assigned a new logical core in the loop above. */ 599 qconf = &lcore_queue_conf[rx_lcore_id]; 600 nb_lcores++; 601 } 602 603 qconf->rx_port_list[qconf->n_rx_port] = portid; 604 qconf->n_rx_port++; 605 printf("Lcore %u: RX port %u\n", rx_lcore_id, portid); 606 } 607 608 nb_ports_available = nb_ports; 609 610 nb_mbufs = RTE_MAX(nb_ports * (nb_rxd + nb_txd + MAX_PKT_BURST + 611 nb_lcores * MEMPOOL_CACHE_SIZE), 8192U); 612 613 /* create the mbuf pool */ 614 l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs, 615 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, 616 rte_socket_id()); 617 if (l2fwd_pktmbuf_pool == NULL) 618 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 619 620 /* Initialise each port */ 621 for (portid = 0; portid < nb_ports; portid++) { 622 struct rte_eth_rxconf rxq_conf; 623 struct rte_eth_txconf txq_conf; 624 struct rte_eth_conf local_port_conf = port_conf; 625 struct rte_eth_dev_info dev_info; 626 627 /* skip ports that are not enabled */ 628 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 629 printf("Skipping disabled port %u\n", portid); 630 nb_ports_available--; 631 continue; 632 } 633 /* init port */ 634 printf("Initializing port %u... ", portid); 635 fflush(stdout); 636 rte_eth_dev_info_get(portid, &dev_info); 637 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 638 local_port_conf.txmode.offloads |= 639 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 640 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf); 641 if (ret < 0) 642 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", 643 ret, portid); 644 645 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 646 &nb_txd); 647 if (ret < 0) 648 rte_exit(EXIT_FAILURE, 649 "Cannot adjust number of descriptors: err=%d, port=%u\n", 650 ret, portid); 651 652 rte_eth_macaddr_get(portid,&l2fwd_ports_eth_addr[portid]); 653 654 /* init one RX queue */ 655 fflush(stdout); 656 rxq_conf = dev_info.default_rxconf; 657 rxq_conf.offloads = local_port_conf.rxmode.offloads; 658 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 659 rte_eth_dev_socket_id(portid), 660 &rxq_conf, 661 l2fwd_pktmbuf_pool); 662 if (ret < 0) 663 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n", 664 ret, portid); 665 666 /* init one TX queue on each port */ 667 fflush(stdout); 668 txq_conf = dev_info.default_txconf; 669 txq_conf.txq_flags = ETH_TXQ_FLAGS_IGNORE; 670 txq_conf.offloads = local_port_conf.txmode.offloads; 671 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, 672 rte_eth_dev_socket_id(portid), 673 &txq_conf); 674 if (ret < 0) 675 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", 676 ret, portid); 677 678 /* Initialize TX buffers */ 679 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 680 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 681 rte_eth_dev_socket_id(portid)); 682 if (tx_buffer[portid] == NULL) 683 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", 684 portid); 685 686 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); 687 688 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], 689 rte_eth_tx_buffer_count_callback, 690 &port_statistics[portid].dropped); 691 if (ret < 0) 692 rte_exit(EXIT_FAILURE, 693 "Cannot set error callback for tx buffer on port %u\n", 694 portid); 695 696 /* Start device */ 697 ret = rte_eth_dev_start(portid); 698 if (ret < 0) 699 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", 700 ret, portid); 701 702 printf("done: \n"); 703 704 rte_eth_promiscuous_enable(portid); 705 706 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", 707 portid, 708 l2fwd_ports_eth_addr[portid].addr_bytes[0], 709 l2fwd_ports_eth_addr[portid].addr_bytes[1], 710 l2fwd_ports_eth_addr[portid].addr_bytes[2], 711 l2fwd_ports_eth_addr[portid].addr_bytes[3], 712 l2fwd_ports_eth_addr[portid].addr_bytes[4], 713 l2fwd_ports_eth_addr[portid].addr_bytes[5]); 714 715 /* initialize port stats */ 716 memset(&port_statistics, 0, sizeof(port_statistics)); 717 } 718 719 if (!nb_ports_available) { 720 rte_exit(EXIT_FAILURE, 721 "All available ports are disabled. Please set portmask.\n"); 722 } 723 724 check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask); 725 726 ret = 0; 727 /* launch per-lcore init on every lcore */ 728 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER); 729 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 730 if (rte_eal_wait_lcore(lcore_id) < 0) { 731 ret = -1; 732 break; 733 } 734 } 735 736 for (portid = 0; portid < nb_ports; portid++) { 737 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 738 continue; 739 printf("Closing port %d...", portid); 740 rte_eth_dev_stop(portid); 741 rte_eth_dev_close(portid); 742 printf(" Done\n"); 743 } 744 printf("Bye...\n"); 745 746 return ret; 747 } 748