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 1024 57 #define RTE_TEST_TX_DESC_DEFAULT 1024 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 rte_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 }, 86 .txmode = { 87 .mq_mode = ETH_MQ_TX_NONE, 88 }, 89 }; 90 91 struct rte_mempool * l2fwd_pktmbuf_pool = NULL; 92 93 /* Per-port statistics struct */ 94 struct l2fwd_port_statistics { 95 uint64_t tx; 96 uint64_t rx; 97 uint64_t dropped; 98 } __rte_cache_aligned; 99 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS]; 100 101 #define MAX_TIMER_PERIOD 86400 /* 1 day max */ 102 /* A tsc-based timer responsible for triggering statistics printout */ 103 static uint64_t timer_period = 10; /* default period is 10 seconds */ 104 105 /* Print out statistics on packets dropped */ 106 static void 107 print_stats(void) 108 { 109 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx; 110 unsigned portid; 111 112 total_packets_dropped = 0; 113 total_packets_tx = 0; 114 total_packets_rx = 0; 115 116 const char clr[] = { 27, '[', '2', 'J', '\0' }; 117 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' }; 118 119 /* Clear screen and move to top left */ 120 printf("%s%s", clr, topLeft); 121 122 printf("\nPort statistics ===================================="); 123 124 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { 125 /* skip disabled ports */ 126 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 127 continue; 128 printf("\nStatistics for port %u ------------------------------" 129 "\nPackets sent: %24"PRIu64 130 "\nPackets received: %20"PRIu64 131 "\nPackets dropped: %21"PRIu64, 132 portid, 133 port_statistics[portid].tx, 134 port_statistics[portid].rx, 135 port_statistics[portid].dropped); 136 137 total_packets_dropped += port_statistics[portid].dropped; 138 total_packets_tx += port_statistics[portid].tx; 139 total_packets_rx += port_statistics[portid].rx; 140 } 141 printf("\nAggregate statistics ===============================" 142 "\nTotal packets sent: %18"PRIu64 143 "\nTotal packets received: %14"PRIu64 144 "\nTotal packets dropped: %15"PRIu64, 145 total_packets_tx, 146 total_packets_rx, 147 total_packets_dropped); 148 printf("\n====================================================\n"); 149 } 150 151 static void 152 l2fwd_mac_updating(struct rte_mbuf *m, unsigned dest_portid) 153 { 154 struct rte_ether_hdr *eth; 155 void *tmp; 156 157 eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); 158 159 /* 02:00:00:00:00:xx */ 160 tmp = ð->d_addr.addr_bytes[0]; 161 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40); 162 163 /* src addr */ 164 rte_ether_addr_copy(&l2fwd_ports_eth_addr[dest_portid], ð->s_addr); 165 } 166 167 static void 168 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) 169 { 170 unsigned dst_port; 171 int sent; 172 struct rte_eth_dev_tx_buffer *buffer; 173 174 dst_port = l2fwd_dst_ports[portid]; 175 176 if (mac_updating) 177 l2fwd_mac_updating(m, dst_port); 178 179 buffer = tx_buffer[dst_port]; 180 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); 181 if (sent) 182 port_statistics[dst_port].tx += sent; 183 } 184 185 /* main processing loop */ 186 static void 187 l2fwd_main_loop(void) 188 { 189 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 190 struct rte_mbuf *m; 191 int sent; 192 unsigned lcore_id; 193 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc; 194 unsigned i, j, portid, nb_rx; 195 struct lcore_queue_conf *qconf; 196 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * 197 BURST_TX_DRAIN_US; 198 struct rte_eth_dev_tx_buffer *buffer; 199 200 prev_tsc = 0; 201 timer_tsc = 0; 202 203 lcore_id = rte_lcore_id(); 204 qconf = &lcore_queue_conf[lcore_id]; 205 206 if (qconf->n_rx_port == 0) { 207 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id); 208 return; 209 } 210 211 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id); 212 213 for (i = 0; i < qconf->n_rx_port; i++) { 214 215 portid = qconf->rx_port_list[i]; 216 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id, 217 portid); 218 219 } 220 221 while (!force_quit) { 222 223 cur_tsc = rte_rdtsc(); 224 225 /* 226 * TX burst queue drain 227 */ 228 diff_tsc = cur_tsc - prev_tsc; 229 if (unlikely(diff_tsc > drain_tsc)) { 230 231 for (i = 0; i < qconf->n_rx_port; i++) { 232 233 portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; 234 buffer = tx_buffer[portid]; 235 236 sent = rte_eth_tx_buffer_flush(portid, 0, buffer); 237 if (sent) 238 port_statistics[portid].tx += sent; 239 240 } 241 242 /* if timer is enabled */ 243 if (timer_period > 0) { 244 245 /* advance the timer */ 246 timer_tsc += diff_tsc; 247 248 /* if timer has reached its timeout */ 249 if (unlikely(timer_tsc >= timer_period)) { 250 251 /* do this only on master core */ 252 if (lcore_id == rte_get_master_lcore()) { 253 print_stats(); 254 /* reset the timer */ 255 timer_tsc = 0; 256 } 257 } 258 } 259 260 prev_tsc = cur_tsc; 261 } 262 263 /* 264 * Read packet from RX queues 265 */ 266 for (i = 0; i < qconf->n_rx_port; i++) { 267 268 portid = qconf->rx_port_list[i]; 269 nb_rx = rte_eth_rx_burst(portid, 0, 270 pkts_burst, MAX_PKT_BURST); 271 272 port_statistics[portid].rx += nb_rx; 273 274 for (j = 0; j < nb_rx; j++) { 275 m = pkts_burst[j]; 276 rte_prefetch0(rte_pktmbuf_mtod(m, void *)); 277 l2fwd_simple_forward(m, portid); 278 } 279 } 280 } 281 } 282 283 static int 284 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy) 285 { 286 l2fwd_main_loop(); 287 return 0; 288 } 289 290 /* display usage */ 291 static void 292 l2fwd_usage(const char *prgname) 293 { 294 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" 295 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 296 " -q NQ: number of queue (=ports) per lcore (default is 1)\n" 297 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n" 298 " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n" 299 " When enabled:\n" 300 " - The source MAC address is replaced by the TX port MAC address\n" 301 " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n", 302 prgname); 303 } 304 305 static int 306 l2fwd_parse_portmask(const char *portmask) 307 { 308 char *end = NULL; 309 unsigned long pm; 310 311 /* parse hexadecimal string */ 312 pm = strtoul(portmask, &end, 16); 313 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 314 return -1; 315 316 if (pm == 0) 317 return -1; 318 319 return pm; 320 } 321 322 static unsigned int 323 l2fwd_parse_nqueue(const char *q_arg) 324 { 325 char *end = NULL; 326 unsigned long n; 327 328 /* parse hexadecimal string */ 329 n = strtoul(q_arg, &end, 10); 330 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 331 return 0; 332 if (n == 0) 333 return 0; 334 if (n >= MAX_RX_QUEUE_PER_LCORE) 335 return 0; 336 337 return n; 338 } 339 340 static int 341 l2fwd_parse_timer_period(const char *q_arg) 342 { 343 char *end = NULL; 344 int n; 345 346 /* parse number string */ 347 n = strtol(q_arg, &end, 10); 348 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 349 return -1; 350 if (n >= MAX_TIMER_PERIOD) 351 return -1; 352 353 return n; 354 } 355 356 static const char short_options[] = 357 "p:" /* portmask */ 358 "q:" /* number of queues */ 359 "T:" /* timer period */ 360 ; 361 362 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating" 363 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" 364 365 enum { 366 /* long options mapped to a short option */ 367 368 /* first long only option value must be >= 256, so that we won't 369 * conflict with short options */ 370 CMD_LINE_OPT_MIN_NUM = 256, 371 }; 372 373 static const struct option lgopts[] = { 374 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1}, 375 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0}, 376 {NULL, 0, 0, 0} 377 }; 378 379 /* Parse the argument given in the command line of the application */ 380 static int 381 l2fwd_parse_args(int argc, char **argv) 382 { 383 int opt, ret, timer_secs; 384 char **argvopt; 385 int option_index; 386 char *prgname = argv[0]; 387 388 argvopt = argv; 389 390 while ((opt = getopt_long(argc, argvopt, short_options, 391 lgopts, &option_index)) != EOF) { 392 393 switch (opt) { 394 /* portmask */ 395 case 'p': 396 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg); 397 if (l2fwd_enabled_port_mask == 0) { 398 printf("invalid portmask\n"); 399 l2fwd_usage(prgname); 400 return -1; 401 } 402 break; 403 404 /* nqueue */ 405 case 'q': 406 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg); 407 if (l2fwd_rx_queue_per_lcore == 0) { 408 printf("invalid queue number\n"); 409 l2fwd_usage(prgname); 410 return -1; 411 } 412 break; 413 414 /* timer period */ 415 case 'T': 416 timer_secs = l2fwd_parse_timer_period(optarg); 417 if (timer_secs < 0) { 418 printf("invalid timer period\n"); 419 l2fwd_usage(prgname); 420 return -1; 421 } 422 timer_period = timer_secs; 423 break; 424 425 /* long options */ 426 case 0: 427 break; 428 429 default: 430 l2fwd_usage(prgname); 431 return -1; 432 } 433 } 434 435 if (optind >= 0) 436 argv[optind-1] = prgname; 437 438 ret = optind-1; 439 optind = 1; /* reset getopt lib */ 440 return ret; 441 } 442 443 /* Check the link status of all ports in up to 9s, and print them finally */ 444 static void 445 check_all_ports_link_status(uint32_t port_mask) 446 { 447 #define CHECK_INTERVAL 100 /* 100ms */ 448 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 449 uint16_t portid; 450 uint8_t count, all_ports_up, print_flag = 0; 451 struct rte_eth_link link; 452 int ret; 453 454 printf("\nChecking link status"); 455 fflush(stdout); 456 for (count = 0; count <= MAX_CHECK_TIME; count++) { 457 if (force_quit) 458 return; 459 all_ports_up = 1; 460 RTE_ETH_FOREACH_DEV(portid) { 461 if (force_quit) 462 return; 463 if ((port_mask & (1 << portid)) == 0) 464 continue; 465 memset(&link, 0, sizeof(link)); 466 ret = rte_eth_link_get_nowait(portid, &link); 467 if (ret < 0) { 468 all_ports_up = 0; 469 if (print_flag == 1) 470 printf("Port %u link get failed: %s\n", 471 portid, rte_strerror(-ret)); 472 continue; 473 } 474 /* print link status if flag set */ 475 if (print_flag == 1) { 476 if (link.link_status) 477 printf( 478 "Port%d Link Up. Speed %u Mbps - %s\n", 479 portid, link.link_speed, 480 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 481 ("full-duplex") : ("half-duplex\n")); 482 else 483 printf("Port %d Link Down\n", portid); 484 continue; 485 } 486 /* clear all_ports_up flag if any link down */ 487 if (link.link_status == ETH_LINK_DOWN) { 488 all_ports_up = 0; 489 break; 490 } 491 } 492 /* after finally printing all link status, get out */ 493 if (print_flag == 1) 494 break; 495 496 if (all_ports_up == 0) { 497 printf("."); 498 fflush(stdout); 499 rte_delay_ms(CHECK_INTERVAL); 500 } 501 502 /* set the print_flag if all ports up or timeout */ 503 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 504 print_flag = 1; 505 printf("done\n"); 506 } 507 } 508 } 509 510 static void 511 signal_handler(int signum) 512 { 513 if (signum == SIGINT || signum == SIGTERM) { 514 printf("\n\nSignal %d received, preparing to exit...\n", 515 signum); 516 force_quit = true; 517 } 518 } 519 520 int 521 main(int argc, char **argv) 522 { 523 struct lcore_queue_conf *qconf; 524 int ret; 525 uint16_t nb_ports; 526 uint16_t nb_ports_available = 0; 527 uint16_t portid, last_port; 528 unsigned lcore_id, rx_lcore_id; 529 unsigned nb_ports_in_mask = 0; 530 unsigned int nb_lcores = 0; 531 unsigned int nb_mbufs; 532 533 /* init EAL */ 534 ret = rte_eal_init(argc, argv); 535 if (ret < 0) 536 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); 537 argc -= ret; 538 argv += ret; 539 540 force_quit = false; 541 signal(SIGINT, signal_handler); 542 signal(SIGTERM, signal_handler); 543 544 /* parse application arguments (after the EAL ones) */ 545 ret = l2fwd_parse_args(argc, argv); 546 if (ret < 0) 547 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n"); 548 549 printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled"); 550 551 /* convert to number of cycles */ 552 timer_period *= rte_get_timer_hz(); 553 554 nb_ports = rte_eth_dev_count_avail(); 555 if (nb_ports == 0) 556 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); 557 558 /* check port mask to possible port mask */ 559 if (l2fwd_enabled_port_mask & ~((1 << nb_ports) - 1)) 560 rte_exit(EXIT_FAILURE, "Invalid portmask; possible (0x%x)\n", 561 (1 << nb_ports) - 1); 562 563 /* reset l2fwd_dst_ports */ 564 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) 565 l2fwd_dst_ports[portid] = 0; 566 last_port = 0; 567 568 /* 569 * Each logical core is assigned a dedicated TX queue on each port. 570 */ 571 RTE_ETH_FOREACH_DEV(portid) { 572 /* skip ports that are not enabled */ 573 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 574 continue; 575 576 if (nb_ports_in_mask % 2) { 577 l2fwd_dst_ports[portid] = last_port; 578 l2fwd_dst_ports[last_port] = portid; 579 } 580 else 581 last_port = portid; 582 583 nb_ports_in_mask++; 584 } 585 if (nb_ports_in_mask % 2) { 586 printf("Notice: odd number of ports in portmask.\n"); 587 l2fwd_dst_ports[last_port] = last_port; 588 } 589 590 rx_lcore_id = 0; 591 qconf = NULL; 592 593 /* Initialize the port/queue configuration of each logical core */ 594 RTE_ETH_FOREACH_DEV(portid) { 595 /* skip ports that are not enabled */ 596 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 597 continue; 598 599 /* get the lcore_id for this port */ 600 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 601 lcore_queue_conf[rx_lcore_id].n_rx_port == 602 l2fwd_rx_queue_per_lcore) { 603 rx_lcore_id++; 604 if (rx_lcore_id >= RTE_MAX_LCORE) 605 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 606 } 607 608 if (qconf != &lcore_queue_conf[rx_lcore_id]) { 609 /* Assigned a new logical core in the loop above. */ 610 qconf = &lcore_queue_conf[rx_lcore_id]; 611 nb_lcores++; 612 } 613 614 qconf->rx_port_list[qconf->n_rx_port] = portid; 615 qconf->n_rx_port++; 616 printf("Lcore %u: RX port %u\n", rx_lcore_id, portid); 617 } 618 619 nb_mbufs = RTE_MAX(nb_ports * (nb_rxd + nb_txd + MAX_PKT_BURST + 620 nb_lcores * MEMPOOL_CACHE_SIZE), 8192U); 621 622 /* create the mbuf pool */ 623 l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs, 624 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, 625 rte_socket_id()); 626 if (l2fwd_pktmbuf_pool == NULL) 627 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 628 629 /* Initialise each port */ 630 RTE_ETH_FOREACH_DEV(portid) { 631 struct rte_eth_rxconf rxq_conf; 632 struct rte_eth_txconf txq_conf; 633 struct rte_eth_conf local_port_conf = port_conf; 634 struct rte_eth_dev_info dev_info; 635 636 /* skip ports that are not enabled */ 637 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 638 printf("Skipping disabled port %u\n", portid); 639 continue; 640 } 641 nb_ports_available++; 642 643 /* init port */ 644 printf("Initializing port %u... ", portid); 645 fflush(stdout); 646 647 ret = rte_eth_dev_info_get(portid, &dev_info); 648 if (ret != 0) 649 rte_exit(EXIT_FAILURE, 650 "Error during getting device (port %u) info: %s\n", 651 portid, strerror(-ret)); 652 653 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 654 local_port_conf.txmode.offloads |= 655 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 656 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf); 657 if (ret < 0) 658 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", 659 ret, portid); 660 661 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 662 &nb_txd); 663 if (ret < 0) 664 rte_exit(EXIT_FAILURE, 665 "Cannot adjust number of descriptors: err=%d, port=%u\n", 666 ret, portid); 667 668 ret = rte_eth_macaddr_get(portid, 669 &l2fwd_ports_eth_addr[portid]); 670 if (ret < 0) 671 rte_exit(EXIT_FAILURE, 672 "Cannot get MAC address: err=%d, port=%u\n", 673 ret, portid); 674 675 /* init one RX queue */ 676 fflush(stdout); 677 rxq_conf = dev_info.default_rxconf; 678 rxq_conf.offloads = local_port_conf.rxmode.offloads; 679 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 680 rte_eth_dev_socket_id(portid), 681 &rxq_conf, 682 l2fwd_pktmbuf_pool); 683 if (ret < 0) 684 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n", 685 ret, portid); 686 687 /* init one TX queue on each port */ 688 fflush(stdout); 689 txq_conf = dev_info.default_txconf; 690 txq_conf.offloads = local_port_conf.txmode.offloads; 691 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, 692 rte_eth_dev_socket_id(portid), 693 &txq_conf); 694 if (ret < 0) 695 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", 696 ret, portid); 697 698 /* Initialize TX buffers */ 699 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 700 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 701 rte_eth_dev_socket_id(portid)); 702 if (tx_buffer[portid] == NULL) 703 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", 704 portid); 705 706 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); 707 708 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], 709 rte_eth_tx_buffer_count_callback, 710 &port_statistics[portid].dropped); 711 if (ret < 0) 712 rte_exit(EXIT_FAILURE, 713 "Cannot set error callback for tx buffer on port %u\n", 714 portid); 715 716 /* Start device */ 717 ret = rte_eth_dev_start(portid); 718 if (ret < 0) 719 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", 720 ret, portid); 721 722 printf("done: \n"); 723 724 ret = rte_eth_promiscuous_enable(portid); 725 if (ret != 0) 726 rte_exit(EXIT_FAILURE, 727 "rte_eth_promiscuous_enable:err=%s, port=%u\n", 728 rte_strerror(-ret), portid); 729 730 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", 731 portid, 732 l2fwd_ports_eth_addr[portid].addr_bytes[0], 733 l2fwd_ports_eth_addr[portid].addr_bytes[1], 734 l2fwd_ports_eth_addr[portid].addr_bytes[2], 735 l2fwd_ports_eth_addr[portid].addr_bytes[3], 736 l2fwd_ports_eth_addr[portid].addr_bytes[4], 737 l2fwd_ports_eth_addr[portid].addr_bytes[5]); 738 739 /* initialize port stats */ 740 memset(&port_statistics, 0, sizeof(port_statistics)); 741 } 742 743 if (!nb_ports_available) { 744 rte_exit(EXIT_FAILURE, 745 "All available ports are disabled. Please set portmask.\n"); 746 } 747 748 check_all_ports_link_status(l2fwd_enabled_port_mask); 749 750 ret = 0; 751 /* launch per-lcore init on every lcore */ 752 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER); 753 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 754 if (rte_eal_wait_lcore(lcore_id) < 0) { 755 ret = -1; 756 break; 757 } 758 } 759 760 RTE_ETH_FOREACH_DEV(portid) { 761 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 762 continue; 763 printf("Closing port %d...", portid); 764 rte_eth_dev_stop(portid); 765 rte_eth_dev_close(portid); 766 printf(" Done\n"); 767 } 768 printf("Bye...\n"); 769 770 return ret; 771 } 772