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_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 73 static volatile bool force_quit; 74 75 /* MAC updating enabled by default */ 76 static int mac_updating = 1; 77 78 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1 79 80 #define NB_MBUF 8192 81 82 #define MAX_PKT_BURST 32 83 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ 84 #define MEMPOOL_CACHE_SIZE 256 85 86 /* 87 * Configurable number of RX/TX ring descriptors 88 */ 89 #define RTE_TEST_RX_DESC_DEFAULT 128 90 #define RTE_TEST_TX_DESC_DEFAULT 512 91 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 92 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; 93 94 /* ethernet addresses of ports */ 95 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS]; 96 97 /* mask of enabled ports */ 98 static uint32_t l2fwd_enabled_port_mask = 0; 99 100 /* list of enabled ports */ 101 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS]; 102 103 static unsigned int l2fwd_rx_queue_per_lcore = 1; 104 105 #define MAX_RX_QUEUE_PER_LCORE 16 106 #define MAX_TX_QUEUE_PER_PORT 16 107 struct lcore_queue_conf { 108 unsigned n_rx_port; 109 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; 110 } __rte_cache_aligned; 111 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; 112 113 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 114 115 static const struct rte_eth_conf port_conf = { 116 .rxmode = { 117 .split_hdr_size = 0, 118 .header_split = 0, /**< Header Split disabled */ 119 .hw_ip_checksum = 0, /**< IP checksum offload disabled */ 120 .hw_vlan_filter = 0, /**< VLAN filtering disabled */ 121 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */ 122 .hw_strip_crc = 1, /**< CRC stripped by hardware */ 123 }, 124 .txmode = { 125 .mq_mode = ETH_MQ_TX_NONE, 126 }, 127 }; 128 129 struct rte_mempool * l2fwd_pktmbuf_pool = NULL; 130 131 /* Per-port statistics struct */ 132 struct l2fwd_port_statistics { 133 uint64_t tx; 134 uint64_t rx; 135 uint64_t dropped; 136 } __rte_cache_aligned; 137 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS]; 138 139 #define MAX_TIMER_PERIOD 86400 /* 1 day max */ 140 /* A tsc-based timer responsible for triggering statistics printout */ 141 static uint64_t timer_period = 10; /* default period is 10 seconds */ 142 143 /* Print out statistics on packets dropped */ 144 static void 145 print_stats(void) 146 { 147 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx; 148 unsigned portid; 149 150 total_packets_dropped = 0; 151 total_packets_tx = 0; 152 total_packets_rx = 0; 153 154 const char clr[] = { 27, '[', '2', 'J', '\0' }; 155 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' }; 156 157 /* Clear screen and move to top left */ 158 printf("%s%s", clr, topLeft); 159 160 printf("\nPort statistics ===================================="); 161 162 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { 163 /* skip disabled ports */ 164 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 165 continue; 166 printf("\nStatistics for port %u ------------------------------" 167 "\nPackets sent: %24"PRIu64 168 "\nPackets received: %20"PRIu64 169 "\nPackets dropped: %21"PRIu64, 170 portid, 171 port_statistics[portid].tx, 172 port_statistics[portid].rx, 173 port_statistics[portid].dropped); 174 175 total_packets_dropped += port_statistics[portid].dropped; 176 total_packets_tx += port_statistics[portid].tx; 177 total_packets_rx += port_statistics[portid].rx; 178 } 179 printf("\nAggregate statistics ===============================" 180 "\nTotal packets sent: %18"PRIu64 181 "\nTotal packets received: %14"PRIu64 182 "\nTotal packets dropped: %15"PRIu64, 183 total_packets_tx, 184 total_packets_rx, 185 total_packets_dropped); 186 printf("\n====================================================\n"); 187 } 188 189 static void 190 l2fwd_mac_updating(struct rte_mbuf *m, unsigned dest_portid) 191 { 192 struct ether_hdr *eth; 193 void *tmp; 194 195 eth = rte_pktmbuf_mtod(m, struct ether_hdr *); 196 197 /* 02:00:00:00:00:xx */ 198 tmp = ð->d_addr.addr_bytes[0]; 199 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40); 200 201 /* src addr */ 202 ether_addr_copy(&l2fwd_ports_eth_addr[dest_portid], ð->s_addr); 203 } 204 205 static void 206 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) 207 { 208 unsigned dst_port; 209 int sent; 210 struct rte_eth_dev_tx_buffer *buffer; 211 212 dst_port = l2fwd_dst_ports[portid]; 213 214 if (mac_updating) 215 l2fwd_mac_updating(m, dst_port); 216 217 buffer = tx_buffer[dst_port]; 218 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); 219 if (sent) 220 port_statistics[dst_port].tx += sent; 221 } 222 223 /* main processing loop */ 224 static void 225 l2fwd_main_loop(void) 226 { 227 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 228 struct rte_mbuf *m; 229 int sent; 230 unsigned lcore_id; 231 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc; 232 unsigned i, j, portid, nb_rx; 233 struct lcore_queue_conf *qconf; 234 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * 235 BURST_TX_DRAIN_US; 236 struct rte_eth_dev_tx_buffer *buffer; 237 238 prev_tsc = 0; 239 timer_tsc = 0; 240 241 lcore_id = rte_lcore_id(); 242 qconf = &lcore_queue_conf[lcore_id]; 243 244 if (qconf->n_rx_port == 0) { 245 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id); 246 return; 247 } 248 249 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id); 250 251 for (i = 0; i < qconf->n_rx_port; i++) { 252 253 portid = qconf->rx_port_list[i]; 254 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id, 255 portid); 256 257 } 258 259 while (!force_quit) { 260 261 cur_tsc = rte_rdtsc(); 262 263 /* 264 * TX burst queue drain 265 */ 266 diff_tsc = cur_tsc - prev_tsc; 267 if (unlikely(diff_tsc > drain_tsc)) { 268 269 for (i = 0; i < qconf->n_rx_port; i++) { 270 271 portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; 272 buffer = tx_buffer[portid]; 273 274 sent = rte_eth_tx_buffer_flush(portid, 0, buffer); 275 if (sent) 276 port_statistics[portid].tx += sent; 277 278 } 279 280 /* if timer is enabled */ 281 if (timer_period > 0) { 282 283 /* advance the timer */ 284 timer_tsc += diff_tsc; 285 286 /* if timer has reached its timeout */ 287 if (unlikely(timer_tsc >= timer_period)) { 288 289 /* do this only on master core */ 290 if (lcore_id == rte_get_master_lcore()) { 291 print_stats(); 292 /* reset the timer */ 293 timer_tsc = 0; 294 } 295 } 296 } 297 298 prev_tsc = cur_tsc; 299 } 300 301 /* 302 * Read packet from RX queues 303 */ 304 for (i = 0; i < qconf->n_rx_port; i++) { 305 306 portid = qconf->rx_port_list[i]; 307 nb_rx = rte_eth_rx_burst(portid, 0, 308 pkts_burst, MAX_PKT_BURST); 309 310 port_statistics[portid].rx += nb_rx; 311 312 for (j = 0; j < nb_rx; j++) { 313 m = pkts_burst[j]; 314 rte_prefetch0(rte_pktmbuf_mtod(m, void *)); 315 l2fwd_simple_forward(m, portid); 316 } 317 } 318 } 319 } 320 321 static int 322 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy) 323 { 324 l2fwd_main_loop(); 325 return 0; 326 } 327 328 /* display usage */ 329 static void 330 l2fwd_usage(const char *prgname) 331 { 332 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" 333 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 334 " -q NQ: number of queue (=ports) per lcore (default is 1)\n" 335 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n" 336 " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n" 337 " When enabled:\n" 338 " - The source MAC address is replaced by the TX port MAC address\n" 339 " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n", 340 prgname); 341 } 342 343 static int 344 l2fwd_parse_portmask(const char *portmask) 345 { 346 char *end = NULL; 347 unsigned long pm; 348 349 /* parse hexadecimal string */ 350 pm = strtoul(portmask, &end, 16); 351 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 352 return -1; 353 354 if (pm == 0) 355 return -1; 356 357 return pm; 358 } 359 360 static unsigned int 361 l2fwd_parse_nqueue(const char *q_arg) 362 { 363 char *end = NULL; 364 unsigned long n; 365 366 /* parse hexadecimal string */ 367 n = strtoul(q_arg, &end, 10); 368 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 369 return 0; 370 if (n == 0) 371 return 0; 372 if (n >= MAX_RX_QUEUE_PER_LCORE) 373 return 0; 374 375 return n; 376 } 377 378 static int 379 l2fwd_parse_timer_period(const char *q_arg) 380 { 381 char *end = NULL; 382 int n; 383 384 /* parse number string */ 385 n = strtol(q_arg, &end, 10); 386 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 387 return -1; 388 if (n >= MAX_TIMER_PERIOD) 389 return -1; 390 391 return n; 392 } 393 394 static const char short_options[] = 395 "p:" /* portmask */ 396 "q:" /* number of queues */ 397 "T:" /* timer period */ 398 ; 399 400 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating" 401 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" 402 403 enum { 404 /* long options mapped to a short option */ 405 406 /* first long only option value must be >= 256, so that we won't 407 * conflict with short options */ 408 CMD_LINE_OPT_MIN_NUM = 256, 409 }; 410 411 static const struct option lgopts[] = { 412 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1}, 413 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0}, 414 {NULL, 0, 0, 0} 415 }; 416 417 /* Parse the argument given in the command line of the application */ 418 static int 419 l2fwd_parse_args(int argc, char **argv) 420 { 421 int opt, ret, timer_secs; 422 char **argvopt; 423 int option_index; 424 char *prgname = argv[0]; 425 426 argvopt = argv; 427 428 while ((opt = getopt_long(argc, argvopt, short_options, 429 lgopts, &option_index)) != EOF) { 430 431 switch (opt) { 432 /* portmask */ 433 case 'p': 434 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg); 435 if (l2fwd_enabled_port_mask == 0) { 436 printf("invalid portmask\n"); 437 l2fwd_usage(prgname); 438 return -1; 439 } 440 break; 441 442 /* nqueue */ 443 case 'q': 444 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg); 445 if (l2fwd_rx_queue_per_lcore == 0) { 446 printf("invalid queue number\n"); 447 l2fwd_usage(prgname); 448 return -1; 449 } 450 break; 451 452 /* timer period */ 453 case 'T': 454 timer_secs = l2fwd_parse_timer_period(optarg); 455 if (timer_secs < 0) { 456 printf("invalid timer period\n"); 457 l2fwd_usage(prgname); 458 return -1; 459 } 460 timer_period = timer_secs; 461 break; 462 463 /* long options */ 464 case 0: 465 break; 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(uint16_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 uint16_t portid; 488 uint8_t count, all_ports_up, print_flag = 0; 489 struct rte_eth_link link; 490 491 printf("\nChecking link status"); 492 fflush(stdout); 493 for (count = 0; count <= MAX_CHECK_TIME; count++) { 494 if (force_quit) 495 return; 496 all_ports_up = 1; 497 for (portid = 0; portid < port_num; portid++) { 498 if (force_quit) 499 return; 500 if ((port_mask & (1 << portid)) == 0) 501 continue; 502 memset(&link, 0, sizeof(link)); 503 rte_eth_link_get_nowait(portid, &link); 504 /* print link status if flag set */ 505 if (print_flag == 1) { 506 if (link.link_status) 507 printf( 508 "Port%d Link Up. Speed %u Mbps - %s\n", 509 portid, link.link_speed, 510 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 511 ("full-duplex") : ("half-duplex\n")); 512 else 513 printf("Port %d Link Down\n", portid); 514 continue; 515 } 516 /* clear all_ports_up flag if any link down */ 517 if (link.link_status == ETH_LINK_DOWN) { 518 all_ports_up = 0; 519 break; 520 } 521 } 522 /* after finally printing all link status, get out */ 523 if (print_flag == 1) 524 break; 525 526 if (all_ports_up == 0) { 527 printf("."); 528 fflush(stdout); 529 rte_delay_ms(CHECK_INTERVAL); 530 } 531 532 /* set the print_flag if all ports up or timeout */ 533 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 534 print_flag = 1; 535 printf("done\n"); 536 } 537 } 538 } 539 540 static void 541 signal_handler(int signum) 542 { 543 if (signum == SIGINT || signum == SIGTERM) { 544 printf("\n\nSignal %d received, preparing to exit...\n", 545 signum); 546 force_quit = true; 547 } 548 } 549 550 int 551 main(int argc, char **argv) 552 { 553 struct lcore_queue_conf *qconf; 554 struct rte_eth_dev_info dev_info; 555 int ret; 556 uint16_t nb_ports; 557 uint16_t nb_ports_available; 558 uint16_t portid, last_port; 559 unsigned lcore_id, rx_lcore_id; 560 unsigned nb_ports_in_mask = 0; 561 562 /* init EAL */ 563 ret = rte_eal_init(argc, argv); 564 if (ret < 0) 565 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); 566 argc -= ret; 567 argv += ret; 568 569 force_quit = false; 570 signal(SIGINT, signal_handler); 571 signal(SIGTERM, signal_handler); 572 573 /* parse application arguments (after the EAL ones) */ 574 ret = l2fwd_parse_args(argc, argv); 575 if (ret < 0) 576 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n"); 577 578 printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled"); 579 580 /* convert to number of cycles */ 581 timer_period *= rte_get_timer_hz(); 582 583 /* create the mbuf pool */ 584 l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 585 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, 586 rte_socket_id()); 587 if (l2fwd_pktmbuf_pool == NULL) 588 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 589 590 nb_ports = rte_eth_dev_count(); 591 if (nb_ports == 0) 592 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); 593 594 /* reset l2fwd_dst_ports */ 595 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) 596 l2fwd_dst_ports[portid] = 0; 597 last_port = 0; 598 599 /* 600 * Each logical core is assigned a dedicated TX queue on each port. 601 */ 602 for (portid = 0; portid < nb_ports; portid++) { 603 /* skip ports that are not enabled */ 604 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 605 continue; 606 607 if (nb_ports_in_mask % 2) { 608 l2fwd_dst_ports[portid] = last_port; 609 l2fwd_dst_ports[last_port] = portid; 610 } 611 else 612 last_port = portid; 613 614 nb_ports_in_mask++; 615 616 rte_eth_dev_info_get(portid, &dev_info); 617 } 618 if (nb_ports_in_mask % 2) { 619 printf("Notice: odd number of ports in portmask.\n"); 620 l2fwd_dst_ports[last_port] = last_port; 621 } 622 623 rx_lcore_id = 0; 624 qconf = NULL; 625 626 /* Initialize the port/queue configuration of each logical core */ 627 for (portid = 0; portid < nb_ports; portid++) { 628 /* skip ports that are not enabled */ 629 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 630 continue; 631 632 /* get the lcore_id for this port */ 633 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 634 lcore_queue_conf[rx_lcore_id].n_rx_port == 635 l2fwd_rx_queue_per_lcore) { 636 rx_lcore_id++; 637 if (rx_lcore_id >= RTE_MAX_LCORE) 638 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 639 } 640 641 if (qconf != &lcore_queue_conf[rx_lcore_id]) 642 /* Assigned a new logical core in the loop above. */ 643 qconf = &lcore_queue_conf[rx_lcore_id]; 644 645 qconf->rx_port_list[qconf->n_rx_port] = portid; 646 qconf->n_rx_port++; 647 printf("Lcore %u: RX port %u\n", rx_lcore_id, portid); 648 } 649 650 nb_ports_available = nb_ports; 651 652 /* Initialise each port */ 653 for (portid = 0; portid < nb_ports; portid++) { 654 /* skip ports that are not enabled */ 655 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 656 printf("Skipping disabled port %u\n", portid); 657 nb_ports_available--; 658 continue; 659 } 660 /* init port */ 661 printf("Initializing port %u... ", portid); 662 fflush(stdout); 663 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf); 664 if (ret < 0) 665 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", 666 ret, portid); 667 668 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 669 &nb_txd); 670 if (ret < 0) 671 rte_exit(EXIT_FAILURE, 672 "Cannot adjust number of descriptors: err=%d, port=%u\n", 673 ret, portid); 674 675 rte_eth_macaddr_get(portid,&l2fwd_ports_eth_addr[portid]); 676 677 /* init one RX queue */ 678 fflush(stdout); 679 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 680 rte_eth_dev_socket_id(portid), 681 NULL, 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 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, 690 rte_eth_dev_socket_id(portid), 691 NULL); 692 if (ret < 0) 693 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", 694 ret, portid); 695 696 /* Initialize TX buffers */ 697 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 698 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 699 rte_eth_dev_socket_id(portid)); 700 if (tx_buffer[portid] == NULL) 701 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", 702 portid); 703 704 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); 705 706 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], 707 rte_eth_tx_buffer_count_callback, 708 &port_statistics[portid].dropped); 709 if (ret < 0) 710 rte_exit(EXIT_FAILURE, 711 "Cannot set error callback for tx buffer on port %u\n", 712 portid); 713 714 /* Start device */ 715 ret = rte_eth_dev_start(portid); 716 if (ret < 0) 717 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", 718 ret, portid); 719 720 printf("done: \n"); 721 722 rte_eth_promiscuous_enable(portid); 723 724 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", 725 portid, 726 l2fwd_ports_eth_addr[portid].addr_bytes[0], 727 l2fwd_ports_eth_addr[portid].addr_bytes[1], 728 l2fwd_ports_eth_addr[portid].addr_bytes[2], 729 l2fwd_ports_eth_addr[portid].addr_bytes[3], 730 l2fwd_ports_eth_addr[portid].addr_bytes[4], 731 l2fwd_ports_eth_addr[portid].addr_bytes[5]); 732 733 /* initialize port stats */ 734 memset(&port_statistics, 0, sizeof(port_statistics)); 735 } 736 737 if (!nb_ports_available) { 738 rte_exit(EXIT_FAILURE, 739 "All available ports are disabled. Please set portmask.\n"); 740 } 741 742 check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask); 743 744 ret = 0; 745 /* launch per-lcore init on every lcore */ 746 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER); 747 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 748 if (rte_eal_wait_lcore(lcore_id) < 0) { 749 ret = -1; 750 break; 751 } 752 } 753 754 for (portid = 0; portid < nb_ports; portid++) { 755 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 756 continue; 757 printf("Closing port %d...", portid); 758 rte_eth_dev_stop(portid); 759 rte_eth_dev_close(portid); 760 printf(" Done\n"); 761 } 762 printf("Bye...\n"); 763 764 return ret; 765 } 766