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 -1; 329 330 if (pm == 0) 331 return -1; 332 333 return pm; 334 } 335 336 static int 337 l2fwd_parse_port_pair_config(const char *q_arg) 338 { 339 enum fieldnames { 340 FLD_PORT1 = 0, 341 FLD_PORT2, 342 _NUM_FLD 343 }; 344 unsigned long int_fld[_NUM_FLD]; 345 const char *p, *p0 = q_arg; 346 char *str_fld[_NUM_FLD]; 347 unsigned int size; 348 char s[256]; 349 char *end; 350 int i; 351 352 nb_port_pair_params = 0; 353 354 while ((p = strchr(p0, '(')) != NULL) { 355 ++p; 356 p0 = strchr(p, ')'); 357 if (p0 == NULL) 358 return -1; 359 360 size = p0 - p; 361 if (size >= sizeof(s)) 362 return -1; 363 364 memcpy(s, p, size); 365 s[size] = '\0'; 366 if (rte_strsplit(s, sizeof(s), str_fld, 367 _NUM_FLD, ',') != _NUM_FLD) 368 return -1; 369 for (i = 0; i < _NUM_FLD; i++) { 370 errno = 0; 371 int_fld[i] = strtoul(str_fld[i], &end, 0); 372 if (errno != 0 || end == str_fld[i] || 373 int_fld[i] >= RTE_MAX_ETHPORTS) 374 return -1; 375 } 376 if (nb_port_pair_params >= RTE_MAX_ETHPORTS/2) { 377 printf("exceeded max number of port pair params: %hu\n", 378 nb_port_pair_params); 379 return -1; 380 } 381 port_pair_params_array[nb_port_pair_params].port[0] = 382 (uint16_t)int_fld[FLD_PORT1]; 383 port_pair_params_array[nb_port_pair_params].port[1] = 384 (uint16_t)int_fld[FLD_PORT2]; 385 ++nb_port_pair_params; 386 } 387 port_pair_params = port_pair_params_array; 388 return 0; 389 } 390 391 static unsigned int 392 l2fwd_parse_nqueue(const char *q_arg) 393 { 394 char *end = NULL; 395 unsigned long n; 396 397 /* parse hexadecimal string */ 398 n = strtoul(q_arg, &end, 10); 399 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 400 return 0; 401 if (n == 0) 402 return 0; 403 if (n >= MAX_RX_QUEUE_PER_LCORE) 404 return 0; 405 406 return n; 407 } 408 409 static int 410 l2fwd_parse_timer_period(const char *q_arg) 411 { 412 char *end = NULL; 413 int n; 414 415 /* parse number string */ 416 n = strtol(q_arg, &end, 10); 417 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 418 return -1; 419 if (n >= MAX_TIMER_PERIOD) 420 return -1; 421 422 return n; 423 } 424 425 static const char short_options[] = 426 "p:" /* portmask */ 427 "q:" /* number of queues */ 428 "T:" /* timer period */ 429 ; 430 431 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating" 432 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" 433 #define CMD_LINE_OPT_PORTMAP_CONFIG "portmap" 434 435 enum { 436 /* long options mapped to a short option */ 437 438 /* first long only option value must be >= 256, so that we won't 439 * conflict with short options */ 440 CMD_LINE_OPT_MIN_NUM = 256, 441 CMD_LINE_OPT_PORTMAP_NUM, 442 }; 443 444 static const struct option lgopts[] = { 445 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1}, 446 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0}, 447 { CMD_LINE_OPT_PORTMAP_CONFIG, 1, 0, CMD_LINE_OPT_PORTMAP_NUM}, 448 {NULL, 0, 0, 0} 449 }; 450 451 /* Parse the argument given in the command line of the application */ 452 static int 453 l2fwd_parse_args(int argc, char **argv) 454 { 455 int opt, ret, timer_secs; 456 char **argvopt; 457 int option_index; 458 char *prgname = argv[0]; 459 460 argvopt = argv; 461 port_pair_params = NULL; 462 463 while ((opt = getopt_long(argc, argvopt, short_options, 464 lgopts, &option_index)) != EOF) { 465 466 switch (opt) { 467 /* portmask */ 468 case 'p': 469 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg); 470 if (l2fwd_enabled_port_mask == 0) { 471 printf("invalid portmask\n"); 472 l2fwd_usage(prgname); 473 return -1; 474 } 475 break; 476 477 /* nqueue */ 478 case 'q': 479 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg); 480 if (l2fwd_rx_queue_per_lcore == 0) { 481 printf("invalid queue number\n"); 482 l2fwd_usage(prgname); 483 return -1; 484 } 485 break; 486 487 /* timer period */ 488 case 'T': 489 timer_secs = l2fwd_parse_timer_period(optarg); 490 if (timer_secs < 0) { 491 printf("invalid timer period\n"); 492 l2fwd_usage(prgname); 493 return -1; 494 } 495 timer_period = timer_secs; 496 break; 497 498 /* long options */ 499 case CMD_LINE_OPT_PORTMAP_NUM: 500 ret = l2fwd_parse_port_pair_config(optarg); 501 if (ret) { 502 fprintf(stderr, "Invalid config\n"); 503 l2fwd_usage(prgname); 504 return -1; 505 } 506 break; 507 508 default: 509 l2fwd_usage(prgname); 510 return -1; 511 } 512 } 513 514 if (optind >= 0) 515 argv[optind-1] = prgname; 516 517 ret = optind-1; 518 optind = 1; /* reset getopt lib */ 519 return ret; 520 } 521 522 /* 523 * Check port pair config with enabled port mask, 524 * and for valid port pair combinations. 525 */ 526 static int 527 check_port_pair_config(void) 528 { 529 uint32_t port_pair_config_mask = 0; 530 uint32_t port_pair_mask = 0; 531 uint16_t index, i, portid; 532 533 for (index = 0; index < nb_port_pair_params; index++) { 534 port_pair_mask = 0; 535 536 for (i = 0; i < NUM_PORTS; i++) { 537 portid = port_pair_params[index].port[i]; 538 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 539 printf("port %u is not enabled in port mask\n", 540 portid); 541 return -1; 542 } 543 if (!rte_eth_dev_is_valid_port(portid)) { 544 printf("port %u is not present on the board\n", 545 portid); 546 return -1; 547 } 548 549 port_pair_mask |= 1 << portid; 550 } 551 552 if (port_pair_config_mask & port_pair_mask) { 553 printf("port %u is used in other port pairs\n", portid); 554 return -1; 555 } 556 port_pair_config_mask |= port_pair_mask; 557 } 558 559 l2fwd_enabled_port_mask &= port_pair_config_mask; 560 561 return 0; 562 } 563 564 /* Check the link status of all ports in up to 9s, and print them finally */ 565 static void 566 check_all_ports_link_status(uint32_t port_mask) 567 { 568 #define CHECK_INTERVAL 100 /* 100ms */ 569 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 570 uint16_t portid; 571 uint8_t count, all_ports_up, print_flag = 0; 572 struct rte_eth_link link; 573 int ret; 574 575 printf("\nChecking link status"); 576 fflush(stdout); 577 for (count = 0; count <= MAX_CHECK_TIME; count++) { 578 if (force_quit) 579 return; 580 all_ports_up = 1; 581 RTE_ETH_FOREACH_DEV(portid) { 582 if (force_quit) 583 return; 584 if ((port_mask & (1 << portid)) == 0) 585 continue; 586 memset(&link, 0, sizeof(link)); 587 ret = rte_eth_link_get_nowait(portid, &link); 588 if (ret < 0) { 589 all_ports_up = 0; 590 if (print_flag == 1) 591 printf("Port %u link get failed: %s\n", 592 portid, rte_strerror(-ret)); 593 continue; 594 } 595 /* print link status if flag set */ 596 if (print_flag == 1) { 597 if (link.link_status) 598 printf( 599 "Port%d Link Up. Speed %u Mbps - %s\n", 600 portid, link.link_speed, 601 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 602 ("full-duplex") : ("half-duplex")); 603 else 604 printf("Port %d Link Down\n", portid); 605 continue; 606 } 607 /* clear all_ports_up flag if any link down */ 608 if (link.link_status == ETH_LINK_DOWN) { 609 all_ports_up = 0; 610 break; 611 } 612 } 613 /* after finally printing all link status, get out */ 614 if (print_flag == 1) 615 break; 616 617 if (all_ports_up == 0) { 618 printf("."); 619 fflush(stdout); 620 rte_delay_ms(CHECK_INTERVAL); 621 } 622 623 /* set the print_flag if all ports up or timeout */ 624 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 625 print_flag = 1; 626 printf("done\n"); 627 } 628 } 629 } 630 631 static void 632 signal_handler(int signum) 633 { 634 if (signum == SIGINT || signum == SIGTERM) { 635 printf("\n\nSignal %d received, preparing to exit...\n", 636 signum); 637 force_quit = true; 638 } 639 } 640 641 int 642 main(int argc, char **argv) 643 { 644 struct lcore_queue_conf *qconf; 645 int ret; 646 uint16_t nb_ports; 647 uint16_t nb_ports_available = 0; 648 uint16_t portid, last_port; 649 unsigned lcore_id, rx_lcore_id; 650 unsigned nb_ports_in_mask = 0; 651 unsigned int nb_lcores = 0; 652 unsigned int nb_mbufs; 653 654 /* init EAL */ 655 ret = rte_eal_init(argc, argv); 656 if (ret < 0) 657 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); 658 argc -= ret; 659 argv += ret; 660 661 force_quit = false; 662 signal(SIGINT, signal_handler); 663 signal(SIGTERM, signal_handler); 664 665 /* parse application arguments (after the EAL ones) */ 666 ret = l2fwd_parse_args(argc, argv); 667 if (ret < 0) 668 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n"); 669 670 printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled"); 671 672 /* convert to number of cycles */ 673 timer_period *= rte_get_timer_hz(); 674 675 nb_ports = rte_eth_dev_count_avail(); 676 if (nb_ports == 0) 677 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); 678 679 if (port_pair_params != NULL) { 680 if (check_port_pair_config() < 0) 681 rte_exit(EXIT_FAILURE, "Invalid port pair config\n"); 682 } 683 684 /* check port mask to possible port mask */ 685 if (l2fwd_enabled_port_mask & ~((1 << nb_ports) - 1)) 686 rte_exit(EXIT_FAILURE, "Invalid portmask; possible (0x%x)\n", 687 (1 << nb_ports) - 1); 688 689 /* reset l2fwd_dst_ports */ 690 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) 691 l2fwd_dst_ports[portid] = 0; 692 last_port = 0; 693 694 /* populate destination port details */ 695 if (port_pair_params != NULL) { 696 uint16_t idx, p; 697 698 for (idx = 0; idx < (nb_port_pair_params << 1); idx++) { 699 p = idx & 1; 700 portid = port_pair_params[idx >> 1].port[p]; 701 l2fwd_dst_ports[portid] = 702 port_pair_params[idx >> 1].port[p ^ 1]; 703 } 704 } else { 705 RTE_ETH_FOREACH_DEV(portid) { 706 /* skip ports that are not enabled */ 707 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 708 continue; 709 710 if (nb_ports_in_mask % 2) { 711 l2fwd_dst_ports[portid] = last_port; 712 l2fwd_dst_ports[last_port] = portid; 713 } else { 714 last_port = portid; 715 } 716 717 nb_ports_in_mask++; 718 } 719 if (nb_ports_in_mask % 2) { 720 printf("Notice: odd number of ports in portmask.\n"); 721 l2fwd_dst_ports[last_port] = last_port; 722 } 723 } 724 725 rx_lcore_id = 0; 726 qconf = NULL; 727 728 /* Initialize the port/queue configuration of each logical core */ 729 RTE_ETH_FOREACH_DEV(portid) { 730 /* skip ports that are not enabled */ 731 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 732 continue; 733 734 /* get the lcore_id for this port */ 735 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 736 lcore_queue_conf[rx_lcore_id].n_rx_port == 737 l2fwd_rx_queue_per_lcore) { 738 rx_lcore_id++; 739 if (rx_lcore_id >= RTE_MAX_LCORE) 740 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 741 } 742 743 if (qconf != &lcore_queue_conf[rx_lcore_id]) { 744 /* Assigned a new logical core in the loop above. */ 745 qconf = &lcore_queue_conf[rx_lcore_id]; 746 nb_lcores++; 747 } 748 749 qconf->rx_port_list[qconf->n_rx_port] = portid; 750 qconf->n_rx_port++; 751 printf("Lcore %u: RX port %u TX port %u\n", rx_lcore_id, 752 portid, l2fwd_dst_ports[portid]); 753 } 754 755 nb_mbufs = RTE_MAX(nb_ports * (nb_rxd + nb_txd + MAX_PKT_BURST + 756 nb_lcores * MEMPOOL_CACHE_SIZE), 8192U); 757 758 /* create the mbuf pool */ 759 l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs, 760 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, 761 rte_socket_id()); 762 if (l2fwd_pktmbuf_pool == NULL) 763 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 764 765 /* Initialise each port */ 766 RTE_ETH_FOREACH_DEV(portid) { 767 struct rte_eth_rxconf rxq_conf; 768 struct rte_eth_txconf txq_conf; 769 struct rte_eth_conf local_port_conf = port_conf; 770 struct rte_eth_dev_info dev_info; 771 772 /* skip ports that are not enabled */ 773 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 774 printf("Skipping disabled port %u\n", portid); 775 continue; 776 } 777 nb_ports_available++; 778 779 /* init port */ 780 printf("Initializing port %u... ", portid); 781 fflush(stdout); 782 783 ret = rte_eth_dev_info_get(portid, &dev_info); 784 if (ret != 0) 785 rte_exit(EXIT_FAILURE, 786 "Error during getting device (port %u) info: %s\n", 787 portid, strerror(-ret)); 788 789 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 790 local_port_conf.txmode.offloads |= 791 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 792 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf); 793 if (ret < 0) 794 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", 795 ret, portid); 796 797 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 798 &nb_txd); 799 if (ret < 0) 800 rte_exit(EXIT_FAILURE, 801 "Cannot adjust number of descriptors: err=%d, port=%u\n", 802 ret, portid); 803 804 ret = rte_eth_macaddr_get(portid, 805 &l2fwd_ports_eth_addr[portid]); 806 if (ret < 0) 807 rte_exit(EXIT_FAILURE, 808 "Cannot get MAC address: err=%d, port=%u\n", 809 ret, portid); 810 811 /* init one RX queue */ 812 fflush(stdout); 813 rxq_conf = dev_info.default_rxconf; 814 rxq_conf.offloads = local_port_conf.rxmode.offloads; 815 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 816 rte_eth_dev_socket_id(portid), 817 &rxq_conf, 818 l2fwd_pktmbuf_pool); 819 if (ret < 0) 820 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n", 821 ret, portid); 822 823 /* init one TX queue on each port */ 824 fflush(stdout); 825 txq_conf = dev_info.default_txconf; 826 txq_conf.offloads = local_port_conf.txmode.offloads; 827 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, 828 rte_eth_dev_socket_id(portid), 829 &txq_conf); 830 if (ret < 0) 831 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", 832 ret, portid); 833 834 /* Initialize TX buffers */ 835 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 836 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 837 rte_eth_dev_socket_id(portid)); 838 if (tx_buffer[portid] == NULL) 839 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", 840 portid); 841 842 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); 843 844 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], 845 rte_eth_tx_buffer_count_callback, 846 &port_statistics[portid].dropped); 847 if (ret < 0) 848 rte_exit(EXIT_FAILURE, 849 "Cannot set error callback for tx buffer on port %u\n", 850 portid); 851 852 ret = rte_eth_dev_set_ptypes(portid, RTE_PTYPE_UNKNOWN, NULL, 853 0); 854 if (ret < 0) 855 printf("Port %u, Failed to disable Ptype parsing\n", 856 portid); 857 /* Start device */ 858 ret = rte_eth_dev_start(portid); 859 if (ret < 0) 860 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", 861 ret, portid); 862 863 printf("done: \n"); 864 865 ret = rte_eth_promiscuous_enable(portid); 866 if (ret != 0) 867 rte_exit(EXIT_FAILURE, 868 "rte_eth_promiscuous_enable:err=%s, port=%u\n", 869 rte_strerror(-ret), portid); 870 871 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", 872 portid, 873 l2fwd_ports_eth_addr[portid].addr_bytes[0], 874 l2fwd_ports_eth_addr[portid].addr_bytes[1], 875 l2fwd_ports_eth_addr[portid].addr_bytes[2], 876 l2fwd_ports_eth_addr[portid].addr_bytes[3], 877 l2fwd_ports_eth_addr[portid].addr_bytes[4], 878 l2fwd_ports_eth_addr[portid].addr_bytes[5]); 879 880 /* initialize port stats */ 881 memset(&port_statistics, 0, sizeof(port_statistics)); 882 } 883 884 if (!nb_ports_available) { 885 rte_exit(EXIT_FAILURE, 886 "All available ports are disabled. Please set portmask.\n"); 887 } 888 889 check_all_ports_link_status(l2fwd_enabled_port_mask); 890 891 ret = 0; 892 /* launch per-lcore init on every lcore */ 893 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER); 894 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 895 if (rte_eal_wait_lcore(lcore_id) < 0) { 896 ret = -1; 897 break; 898 } 899 } 900 901 RTE_ETH_FOREACH_DEV(portid) { 902 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 903 continue; 904 printf("Closing port %d...", portid); 905 rte_eth_dev_stop(portid); 906 rte_eth_dev_close(portid); 907 printf(" Done\n"); 908 } 909 printf("Bye...\n"); 910 911 return ret; 912 } 913