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 #include <rte_string_fns.h> 42 43 static volatile bool force_quit; 44 45 /* MAC updating enabled by default */ 46 static int mac_updating = 1; 47 48 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1 49 50 #define MAX_PKT_BURST 32 51 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ 52 #define MEMPOOL_CACHE_SIZE 256 53 54 /* 55 * Configurable number of RX/TX ring descriptors 56 */ 57 #define RTE_TEST_RX_DESC_DEFAULT 1024 58 #define RTE_TEST_TX_DESC_DEFAULT 1024 59 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 60 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; 61 62 /* ethernet addresses of ports */ 63 static struct rte_ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS]; 64 65 /* mask of enabled ports */ 66 static uint32_t l2fwd_enabled_port_mask = 0; 67 68 /* list of enabled ports */ 69 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS]; 70 71 struct port_pair_params { 72 #define NUM_PORTS 2 73 uint16_t port[NUM_PORTS]; 74 } __rte_cache_aligned; 75 76 static struct port_pair_params port_pair_params_array[RTE_MAX_ETHPORTS / 2]; 77 static struct port_pair_params *port_pair_params; 78 static uint16_t nb_port_pair_params; 79 80 static unsigned int l2fwd_rx_queue_per_lcore = 1; 81 82 #define MAX_RX_QUEUE_PER_LCORE 16 83 #define MAX_TX_QUEUE_PER_PORT 16 84 struct lcore_queue_conf { 85 unsigned n_rx_port; 86 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; 87 } __rte_cache_aligned; 88 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; 89 90 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 91 92 static struct rte_eth_conf port_conf = { 93 .rxmode = { 94 .split_hdr_size = 0, 95 }, 96 .txmode = { 97 .mq_mode = ETH_MQ_TX_NONE, 98 }, 99 }; 100 101 struct rte_mempool * l2fwd_pktmbuf_pool = NULL; 102 103 /* Per-port statistics struct */ 104 struct l2fwd_port_statistics { 105 uint64_t tx; 106 uint64_t rx; 107 uint64_t dropped; 108 } __rte_cache_aligned; 109 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS]; 110 111 #define MAX_TIMER_PERIOD 86400 /* 1 day max */ 112 /* A tsc-based timer responsible for triggering statistics printout */ 113 static uint64_t timer_period = 10; /* default period is 10 seconds */ 114 115 /* Print out statistics on packets dropped */ 116 static void 117 print_stats(void) 118 { 119 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx; 120 unsigned portid; 121 122 total_packets_dropped = 0; 123 total_packets_tx = 0; 124 total_packets_rx = 0; 125 126 const char clr[] = { 27, '[', '2', 'J', '\0' }; 127 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' }; 128 129 /* Clear screen and move to top left */ 130 printf("%s%s", clr, topLeft); 131 132 printf("\nPort statistics ===================================="); 133 134 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { 135 /* skip disabled ports */ 136 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 137 continue; 138 printf("\nStatistics for port %u ------------------------------" 139 "\nPackets sent: %24"PRIu64 140 "\nPackets received: %20"PRIu64 141 "\nPackets dropped: %21"PRIu64, 142 portid, 143 port_statistics[portid].tx, 144 port_statistics[portid].rx, 145 port_statistics[portid].dropped); 146 147 total_packets_dropped += port_statistics[portid].dropped; 148 total_packets_tx += port_statistics[portid].tx; 149 total_packets_rx += port_statistics[portid].rx; 150 } 151 printf("\nAggregate statistics ===============================" 152 "\nTotal packets sent: %18"PRIu64 153 "\nTotal packets received: %14"PRIu64 154 "\nTotal packets dropped: %15"PRIu64, 155 total_packets_tx, 156 total_packets_rx, 157 total_packets_dropped); 158 printf("\n====================================================\n"); 159 160 fflush(stdout); 161 } 162 163 static void 164 l2fwd_mac_updating(struct rte_mbuf *m, unsigned dest_portid) 165 { 166 struct rte_ether_hdr *eth; 167 void *tmp; 168 169 eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); 170 171 /* 02:00:00:00:00:xx */ 172 tmp = ð->d_addr.addr_bytes[0]; 173 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40); 174 175 /* src addr */ 176 rte_ether_addr_copy(&l2fwd_ports_eth_addr[dest_portid], ð->s_addr); 177 } 178 179 static void 180 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) 181 { 182 unsigned dst_port; 183 int sent; 184 struct rte_eth_dev_tx_buffer *buffer; 185 186 dst_port = l2fwd_dst_ports[portid]; 187 188 if (mac_updating) 189 l2fwd_mac_updating(m, dst_port); 190 191 buffer = tx_buffer[dst_port]; 192 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); 193 if (sent) 194 port_statistics[dst_port].tx += sent; 195 } 196 197 /* main processing loop */ 198 static void 199 l2fwd_main_loop(void) 200 { 201 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 202 struct rte_mbuf *m; 203 int sent; 204 unsigned lcore_id; 205 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc; 206 unsigned i, j, portid, nb_rx; 207 struct lcore_queue_conf *qconf; 208 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * 209 BURST_TX_DRAIN_US; 210 struct rte_eth_dev_tx_buffer *buffer; 211 212 prev_tsc = 0; 213 timer_tsc = 0; 214 215 lcore_id = rte_lcore_id(); 216 qconf = &lcore_queue_conf[lcore_id]; 217 218 if (qconf->n_rx_port == 0) { 219 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id); 220 return; 221 } 222 223 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id); 224 225 for (i = 0; i < qconf->n_rx_port; i++) { 226 227 portid = qconf->rx_port_list[i]; 228 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id, 229 portid); 230 231 } 232 233 while (!force_quit) { 234 235 cur_tsc = rte_rdtsc(); 236 237 /* 238 * TX burst queue drain 239 */ 240 diff_tsc = cur_tsc - prev_tsc; 241 if (unlikely(diff_tsc > drain_tsc)) { 242 243 for (i = 0; i < qconf->n_rx_port; i++) { 244 245 portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; 246 buffer = tx_buffer[portid]; 247 248 sent = rte_eth_tx_buffer_flush(portid, 0, buffer); 249 if (sent) 250 port_statistics[portid].tx += sent; 251 252 } 253 254 /* if timer is enabled */ 255 if (timer_period > 0) { 256 257 /* advance the timer */ 258 timer_tsc += diff_tsc; 259 260 /* if timer has reached its timeout */ 261 if (unlikely(timer_tsc >= timer_period)) { 262 263 /* do this only on master core */ 264 if (lcore_id == rte_get_master_lcore()) { 265 print_stats(); 266 /* reset the timer */ 267 timer_tsc = 0; 268 } 269 } 270 } 271 272 prev_tsc = cur_tsc; 273 } 274 275 /* 276 * Read packet from RX queues 277 */ 278 for (i = 0; i < qconf->n_rx_port; i++) { 279 280 portid = qconf->rx_port_list[i]; 281 nb_rx = rte_eth_rx_burst(portid, 0, 282 pkts_burst, MAX_PKT_BURST); 283 284 port_statistics[portid].rx += nb_rx; 285 286 for (j = 0; j < nb_rx; j++) { 287 m = pkts_burst[j]; 288 rte_prefetch0(rte_pktmbuf_mtod(m, void *)); 289 l2fwd_simple_forward(m, portid); 290 } 291 } 292 } 293 } 294 295 static int 296 l2fwd_launch_one_lcore(__rte_unused void *dummy) 297 { 298 l2fwd_main_loop(); 299 return 0; 300 } 301 302 /* display usage */ 303 static void 304 l2fwd_usage(const char *prgname) 305 { 306 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" 307 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 308 " -q NQ: number of queue (=ports) per lcore (default is 1)\n" 309 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n" 310 " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n" 311 " When enabled:\n" 312 " - The source MAC address is replaced by the TX port MAC address\n" 313 " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n" 314 " --portmap: Configure forwarding port pair mapping\n" 315 " Default: alternate port pairs\n\n", 316 prgname); 317 } 318 319 static int 320 l2fwd_parse_portmask(const char *portmask) 321 { 322 char *end = NULL; 323 unsigned long pm; 324 325 /* parse hexadecimal string */ 326 pm = strtoul(portmask, &end, 16); 327 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 328 return 0; 329 330 return pm; 331 } 332 333 static int 334 l2fwd_parse_port_pair_config(const char *q_arg) 335 { 336 enum fieldnames { 337 FLD_PORT1 = 0, 338 FLD_PORT2, 339 _NUM_FLD 340 }; 341 unsigned long int_fld[_NUM_FLD]; 342 const char *p, *p0 = q_arg; 343 char *str_fld[_NUM_FLD]; 344 unsigned int size; 345 char s[256]; 346 char *end; 347 int i; 348 349 nb_port_pair_params = 0; 350 351 while ((p = strchr(p0, '(')) != NULL) { 352 ++p; 353 p0 = strchr(p, ')'); 354 if (p0 == NULL) 355 return -1; 356 357 size = p0 - p; 358 if (size >= sizeof(s)) 359 return -1; 360 361 memcpy(s, p, size); 362 s[size] = '\0'; 363 if (rte_strsplit(s, sizeof(s), str_fld, 364 _NUM_FLD, ',') != _NUM_FLD) 365 return -1; 366 for (i = 0; i < _NUM_FLD; i++) { 367 errno = 0; 368 int_fld[i] = strtoul(str_fld[i], &end, 0); 369 if (errno != 0 || end == str_fld[i] || 370 int_fld[i] >= RTE_MAX_ETHPORTS) 371 return -1; 372 } 373 if (nb_port_pair_params >= RTE_MAX_ETHPORTS/2) { 374 printf("exceeded max number of port pair params: %hu\n", 375 nb_port_pair_params); 376 return -1; 377 } 378 port_pair_params_array[nb_port_pair_params].port[0] = 379 (uint16_t)int_fld[FLD_PORT1]; 380 port_pair_params_array[nb_port_pair_params].port[1] = 381 (uint16_t)int_fld[FLD_PORT2]; 382 ++nb_port_pair_params; 383 } 384 port_pair_params = port_pair_params_array; 385 return 0; 386 } 387 388 static unsigned int 389 l2fwd_parse_nqueue(const char *q_arg) 390 { 391 char *end = NULL; 392 unsigned long n; 393 394 /* parse hexadecimal string */ 395 n = strtoul(q_arg, &end, 10); 396 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 397 return 0; 398 if (n == 0) 399 return 0; 400 if (n >= MAX_RX_QUEUE_PER_LCORE) 401 return 0; 402 403 return n; 404 } 405 406 static int 407 l2fwd_parse_timer_period(const char *q_arg) 408 { 409 char *end = NULL; 410 int n; 411 412 /* parse number string */ 413 n = strtol(q_arg, &end, 10); 414 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 415 return -1; 416 if (n >= MAX_TIMER_PERIOD) 417 return -1; 418 419 return n; 420 } 421 422 static const char short_options[] = 423 "p:" /* portmask */ 424 "q:" /* number of queues */ 425 "T:" /* timer period */ 426 ; 427 428 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating" 429 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" 430 #define CMD_LINE_OPT_PORTMAP_CONFIG "portmap" 431 432 enum { 433 /* long options mapped to a short option */ 434 435 /* first long only option value must be >= 256, so that we won't 436 * conflict with short options */ 437 CMD_LINE_OPT_MIN_NUM = 256, 438 CMD_LINE_OPT_PORTMAP_NUM, 439 }; 440 441 static const struct option lgopts[] = { 442 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1}, 443 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0}, 444 { CMD_LINE_OPT_PORTMAP_CONFIG, 1, 0, CMD_LINE_OPT_PORTMAP_NUM}, 445 {NULL, 0, 0, 0} 446 }; 447 448 /* Parse the argument given in the command line of the application */ 449 static int 450 l2fwd_parse_args(int argc, char **argv) 451 { 452 int opt, ret, timer_secs; 453 char **argvopt; 454 int option_index; 455 char *prgname = argv[0]; 456 457 argvopt = argv; 458 port_pair_params = NULL; 459 460 while ((opt = getopt_long(argc, argvopt, short_options, 461 lgopts, &option_index)) != EOF) { 462 463 switch (opt) { 464 /* portmask */ 465 case 'p': 466 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg); 467 if (l2fwd_enabled_port_mask == 0) { 468 printf("invalid portmask\n"); 469 l2fwd_usage(prgname); 470 return -1; 471 } 472 break; 473 474 /* nqueue */ 475 case 'q': 476 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg); 477 if (l2fwd_rx_queue_per_lcore == 0) { 478 printf("invalid queue number\n"); 479 l2fwd_usage(prgname); 480 return -1; 481 } 482 break; 483 484 /* timer period */ 485 case 'T': 486 timer_secs = l2fwd_parse_timer_period(optarg); 487 if (timer_secs < 0) { 488 printf("invalid timer period\n"); 489 l2fwd_usage(prgname); 490 return -1; 491 } 492 timer_period = timer_secs; 493 break; 494 495 /* long options */ 496 case CMD_LINE_OPT_PORTMAP_NUM: 497 ret = l2fwd_parse_port_pair_config(optarg); 498 if (ret) { 499 fprintf(stderr, "Invalid config\n"); 500 l2fwd_usage(prgname); 501 return -1; 502 } 503 break; 504 505 default: 506 l2fwd_usage(prgname); 507 return -1; 508 } 509 } 510 511 if (optind >= 0) 512 argv[optind-1] = prgname; 513 514 ret = optind-1; 515 optind = 1; /* reset getopt lib */ 516 return ret; 517 } 518 519 /* 520 * Check port pair config with enabled port mask, 521 * and for valid port pair combinations. 522 */ 523 static int 524 check_port_pair_config(void) 525 { 526 uint32_t port_pair_config_mask = 0; 527 uint32_t port_pair_mask = 0; 528 uint16_t index, i, portid; 529 530 for (index = 0; index < nb_port_pair_params; index++) { 531 port_pair_mask = 0; 532 533 for (i = 0; i < NUM_PORTS; i++) { 534 portid = port_pair_params[index].port[i]; 535 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 536 printf("port %u is not enabled in port mask\n", 537 portid); 538 return -1; 539 } 540 if (!rte_eth_dev_is_valid_port(portid)) { 541 printf("port %u is not present on the board\n", 542 portid); 543 return -1; 544 } 545 546 port_pair_mask |= 1 << portid; 547 } 548 549 if (port_pair_config_mask & port_pair_mask) { 550 printf("port %u is used in other port pairs\n", portid); 551 return -1; 552 } 553 port_pair_config_mask |= port_pair_mask; 554 } 555 556 l2fwd_enabled_port_mask &= port_pair_config_mask; 557 558 return 0; 559 } 560 561 /* Check the link status of all ports in up to 9s, and print them finally */ 562 static void 563 check_all_ports_link_status(uint32_t port_mask) 564 { 565 #define CHECK_INTERVAL 100 /* 100ms */ 566 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 567 uint16_t portid; 568 uint8_t count, all_ports_up, print_flag = 0; 569 struct rte_eth_link link; 570 int ret; 571 572 printf("\nChecking link status"); 573 fflush(stdout); 574 for (count = 0; count <= MAX_CHECK_TIME; count++) { 575 if (force_quit) 576 return; 577 all_ports_up = 1; 578 RTE_ETH_FOREACH_DEV(portid) { 579 if (force_quit) 580 return; 581 if ((port_mask & (1 << portid)) == 0) 582 continue; 583 memset(&link, 0, sizeof(link)); 584 ret = rte_eth_link_get_nowait(portid, &link); 585 if (ret < 0) { 586 all_ports_up = 0; 587 if (print_flag == 1) 588 printf("Port %u link get failed: %s\n", 589 portid, rte_strerror(-ret)); 590 continue; 591 } 592 /* print link status if flag set */ 593 if (print_flag == 1) { 594 if (link.link_status) 595 printf( 596 "Port%d Link Up. Speed %u Mbps - %s\n", 597 portid, link.link_speed, 598 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 599 ("full-duplex") : ("half-duplex")); 600 else 601 printf("Port %d Link Down\n", portid); 602 continue; 603 } 604 /* clear all_ports_up flag if any link down */ 605 if (link.link_status == ETH_LINK_DOWN) { 606 all_ports_up = 0; 607 break; 608 } 609 } 610 /* after finally printing all link status, get out */ 611 if (print_flag == 1) 612 break; 613 614 if (all_ports_up == 0) { 615 printf("."); 616 fflush(stdout); 617 rte_delay_ms(CHECK_INTERVAL); 618 } 619 620 /* set the print_flag if all ports up or timeout */ 621 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 622 print_flag = 1; 623 printf("done\n"); 624 } 625 } 626 } 627 628 static void 629 signal_handler(int signum) 630 { 631 if (signum == SIGINT || signum == SIGTERM) { 632 printf("\n\nSignal %d received, preparing to exit...\n", 633 signum); 634 force_quit = true; 635 } 636 } 637 638 int 639 main(int argc, char **argv) 640 { 641 struct lcore_queue_conf *qconf; 642 int ret; 643 uint16_t nb_ports; 644 uint16_t nb_ports_available = 0; 645 uint16_t portid, last_port; 646 unsigned lcore_id, rx_lcore_id; 647 unsigned nb_ports_in_mask = 0; 648 unsigned int nb_lcores = 0; 649 unsigned int nb_mbufs; 650 651 /* init EAL */ 652 ret = rte_eal_init(argc, argv); 653 if (ret < 0) 654 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); 655 argc -= ret; 656 argv += ret; 657 658 force_quit = false; 659 signal(SIGINT, signal_handler); 660 signal(SIGTERM, signal_handler); 661 662 /* parse application arguments (after the EAL ones) */ 663 ret = l2fwd_parse_args(argc, argv); 664 if (ret < 0) 665 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n"); 666 667 printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled"); 668 669 /* convert to number of cycles */ 670 timer_period *= rte_get_timer_hz(); 671 672 nb_ports = rte_eth_dev_count_avail(); 673 if (nb_ports == 0) 674 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); 675 676 if (port_pair_params != NULL) { 677 if (check_port_pair_config() < 0) 678 rte_exit(EXIT_FAILURE, "Invalid port pair config\n"); 679 } 680 681 /* check port mask to possible port mask */ 682 if (l2fwd_enabled_port_mask & ~((1 << nb_ports) - 1)) 683 rte_exit(EXIT_FAILURE, "Invalid portmask; possible (0x%x)\n", 684 (1 << nb_ports) - 1); 685 686 /* reset l2fwd_dst_ports */ 687 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) 688 l2fwd_dst_ports[portid] = 0; 689 last_port = 0; 690 691 /* populate destination port details */ 692 if (port_pair_params != NULL) { 693 uint16_t idx, p; 694 695 for (idx = 0; idx < (nb_port_pair_params << 1); idx++) { 696 p = idx & 1; 697 portid = port_pair_params[idx >> 1].port[p]; 698 l2fwd_dst_ports[portid] = 699 port_pair_params[idx >> 1].port[p ^ 1]; 700 } 701 } else { 702 RTE_ETH_FOREACH_DEV(portid) { 703 /* skip ports that are not enabled */ 704 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 705 continue; 706 707 if (nb_ports_in_mask % 2) { 708 l2fwd_dst_ports[portid] = last_port; 709 l2fwd_dst_ports[last_port] = portid; 710 } else { 711 last_port = portid; 712 } 713 714 nb_ports_in_mask++; 715 } 716 if (nb_ports_in_mask % 2) { 717 printf("Notice: odd number of ports in portmask.\n"); 718 l2fwd_dst_ports[last_port] = last_port; 719 } 720 } 721 722 rx_lcore_id = 0; 723 qconf = NULL; 724 725 /* Initialize the port/queue configuration of each logical core */ 726 RTE_ETH_FOREACH_DEV(portid) { 727 /* skip ports that are not enabled */ 728 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 729 continue; 730 731 /* get the lcore_id for this port */ 732 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 733 lcore_queue_conf[rx_lcore_id].n_rx_port == 734 l2fwd_rx_queue_per_lcore) { 735 rx_lcore_id++; 736 if (rx_lcore_id >= RTE_MAX_LCORE) 737 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 738 } 739 740 if (qconf != &lcore_queue_conf[rx_lcore_id]) { 741 /* Assigned a new logical core in the loop above. */ 742 qconf = &lcore_queue_conf[rx_lcore_id]; 743 nb_lcores++; 744 } 745 746 qconf->rx_port_list[qconf->n_rx_port] = portid; 747 qconf->n_rx_port++; 748 printf("Lcore %u: RX port %u TX port %u\n", rx_lcore_id, 749 portid, l2fwd_dst_ports[portid]); 750 } 751 752 nb_mbufs = RTE_MAX(nb_ports * (nb_rxd + nb_txd + MAX_PKT_BURST + 753 nb_lcores * MEMPOOL_CACHE_SIZE), 8192U); 754 755 /* create the mbuf pool */ 756 l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs, 757 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, 758 rte_socket_id()); 759 if (l2fwd_pktmbuf_pool == NULL) 760 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 761 762 /* Initialise each port */ 763 RTE_ETH_FOREACH_DEV(portid) { 764 struct rte_eth_rxconf rxq_conf; 765 struct rte_eth_txconf txq_conf; 766 struct rte_eth_conf local_port_conf = port_conf; 767 struct rte_eth_dev_info dev_info; 768 769 /* skip ports that are not enabled */ 770 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 771 printf("Skipping disabled port %u\n", portid); 772 continue; 773 } 774 nb_ports_available++; 775 776 /* init port */ 777 printf("Initializing port %u... ", portid); 778 fflush(stdout); 779 780 ret = rte_eth_dev_info_get(portid, &dev_info); 781 if (ret != 0) 782 rte_exit(EXIT_FAILURE, 783 "Error during getting device (port %u) info: %s\n", 784 portid, strerror(-ret)); 785 786 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 787 local_port_conf.txmode.offloads |= 788 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 789 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf); 790 if (ret < 0) 791 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", 792 ret, portid); 793 794 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 795 &nb_txd); 796 if (ret < 0) 797 rte_exit(EXIT_FAILURE, 798 "Cannot adjust number of descriptors: err=%d, port=%u\n", 799 ret, portid); 800 801 ret = rte_eth_macaddr_get(portid, 802 &l2fwd_ports_eth_addr[portid]); 803 if (ret < 0) 804 rte_exit(EXIT_FAILURE, 805 "Cannot get MAC address: err=%d, port=%u\n", 806 ret, portid); 807 808 /* init one RX queue */ 809 fflush(stdout); 810 rxq_conf = dev_info.default_rxconf; 811 rxq_conf.offloads = local_port_conf.rxmode.offloads; 812 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 813 rte_eth_dev_socket_id(portid), 814 &rxq_conf, 815 l2fwd_pktmbuf_pool); 816 if (ret < 0) 817 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n", 818 ret, portid); 819 820 /* init one TX queue on each port */ 821 fflush(stdout); 822 txq_conf = dev_info.default_txconf; 823 txq_conf.offloads = local_port_conf.txmode.offloads; 824 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, 825 rte_eth_dev_socket_id(portid), 826 &txq_conf); 827 if (ret < 0) 828 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", 829 ret, portid); 830 831 /* Initialize TX buffers */ 832 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 833 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 834 rte_eth_dev_socket_id(portid)); 835 if (tx_buffer[portid] == NULL) 836 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", 837 portid); 838 839 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); 840 841 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], 842 rte_eth_tx_buffer_count_callback, 843 &port_statistics[portid].dropped); 844 if (ret < 0) 845 rte_exit(EXIT_FAILURE, 846 "Cannot set error callback for tx buffer on port %u\n", 847 portid); 848 849 ret = rte_eth_dev_set_ptypes(portid, RTE_PTYPE_UNKNOWN, NULL, 850 0); 851 if (ret < 0) 852 printf("Port %u, Failed to disable Ptype parsing\n", 853 portid); 854 /* Start device */ 855 ret = rte_eth_dev_start(portid); 856 if (ret < 0) 857 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", 858 ret, portid); 859 860 printf("done: \n"); 861 862 ret = rte_eth_promiscuous_enable(portid); 863 if (ret != 0) 864 rte_exit(EXIT_FAILURE, 865 "rte_eth_promiscuous_enable:err=%s, port=%u\n", 866 rte_strerror(-ret), portid); 867 868 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", 869 portid, 870 l2fwd_ports_eth_addr[portid].addr_bytes[0], 871 l2fwd_ports_eth_addr[portid].addr_bytes[1], 872 l2fwd_ports_eth_addr[portid].addr_bytes[2], 873 l2fwd_ports_eth_addr[portid].addr_bytes[3], 874 l2fwd_ports_eth_addr[portid].addr_bytes[4], 875 l2fwd_ports_eth_addr[portid].addr_bytes[5]); 876 877 /* initialize port stats */ 878 memset(&port_statistics, 0, sizeof(port_statistics)); 879 } 880 881 if (!nb_ports_available) { 882 rte_exit(EXIT_FAILURE, 883 "All available ports are disabled. Please set portmask.\n"); 884 } 885 886 check_all_ports_link_status(l2fwd_enabled_port_mask); 887 888 ret = 0; 889 /* launch per-lcore init on every lcore */ 890 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER); 891 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 892 if (rte_eal_wait_lcore(lcore_id) < 0) { 893 ret = -1; 894 break; 895 } 896 } 897 898 RTE_ETH_FOREACH_DEV(portid) { 899 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 900 continue; 901 printf("Closing port %d...", portid); 902 rte_eth_dev_stop(portid); 903 rte_eth_dev_close(portid); 904 printf(" Done\n"); 905 } 906 printf("Bye...\n"); 907 908 return ret; 909 } 910