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