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 <setjmp.h> 13 #include <stdarg.h> 14 #include <ctype.h> 15 #include <errno.h> 16 #include <getopt.h> 17 #include <signal.h> 18 #include <stdbool.h> 19 20 #include <rte_common.h> 21 #include <rte_log.h> 22 #include <rte_malloc.h> 23 #include <rte_memory.h> 24 #include <rte_memcpy.h> 25 #include <rte_eal.h> 26 #include <rte_launch.h> 27 #include <rte_atomic.h> 28 #include <rte_cycles.h> 29 #include <rte_prefetch.h> 30 #include <rte_lcore.h> 31 #include <rte_per_lcore.h> 32 #include <rte_branch_prediction.h> 33 #include <rte_interrupts.h> 34 #include <rte_random.h> 35 #include <rte_debug.h> 36 #include <rte_ether.h> 37 #include <rte_ethdev.h> 38 #include <rte_mempool.h> 39 #include <rte_mbuf.h> 40 #include <rte_string_fns.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 struct port_pair_params { 71 #define NUM_PORTS 2 72 uint16_t port[NUM_PORTS]; 73 } __rte_cache_aligned; 74 75 static struct port_pair_params port_pair_params_array[RTE_MAX_ETHPORTS / 2]; 76 static struct port_pair_params *port_pair_params; 77 static uint16_t nb_port_pair_params; 78 79 static unsigned int l2fwd_rx_queue_per_lcore = 1; 80 81 #define MAX_RX_QUEUE_PER_LCORE 16 82 #define MAX_TX_QUEUE_PER_PORT 16 83 struct lcore_queue_conf { 84 unsigned n_rx_port; 85 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; 86 } __rte_cache_aligned; 87 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; 88 89 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 90 91 static struct rte_eth_conf port_conf = { 92 .rxmode = { 93 .split_hdr_size = 0, 94 }, 95 .txmode = { 96 .mq_mode = ETH_MQ_TX_NONE, 97 }, 98 }; 99 100 struct rte_mempool * l2fwd_pktmbuf_pool = NULL; 101 102 /* Per-port statistics struct */ 103 struct l2fwd_port_statistics { 104 uint64_t tx; 105 uint64_t rx; 106 uint64_t dropped; 107 } __rte_cache_aligned; 108 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS]; 109 110 #define MAX_TIMER_PERIOD 86400 /* 1 day max */ 111 /* A tsc-based timer responsible for triggering statistics printout */ 112 static uint64_t timer_period = 10; /* default period is 10 seconds */ 113 114 /* Print out statistics on packets dropped */ 115 static void 116 print_stats(void) 117 { 118 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx; 119 unsigned portid; 120 121 total_packets_dropped = 0; 122 total_packets_tx = 0; 123 total_packets_rx = 0; 124 125 const char clr[] = { 27, '[', '2', 'J', '\0' }; 126 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' }; 127 128 /* Clear screen and move to top left */ 129 printf("%s%s", clr, topLeft); 130 131 printf("\nPort statistics ===================================="); 132 133 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { 134 /* skip disabled ports */ 135 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 136 continue; 137 printf("\nStatistics for port %u ------------------------------" 138 "\nPackets sent: %24"PRIu64 139 "\nPackets received: %20"PRIu64 140 "\nPackets dropped: %21"PRIu64, 141 portid, 142 port_statistics[portid].tx, 143 port_statistics[portid].rx, 144 port_statistics[portid].dropped); 145 146 total_packets_dropped += port_statistics[portid].dropped; 147 total_packets_tx += port_statistics[portid].tx; 148 total_packets_rx += port_statistics[portid].rx; 149 } 150 printf("\nAggregate statistics ===============================" 151 "\nTotal packets sent: %18"PRIu64 152 "\nTotal packets received: %14"PRIu64 153 "\nTotal packets dropped: %15"PRIu64, 154 total_packets_tx, 155 total_packets_rx, 156 total_packets_dropped); 157 printf("\n====================================================\n"); 158 159 fflush(stdout); 160 } 161 162 static void 163 l2fwd_mac_updating(struct rte_mbuf *m, unsigned dest_portid) 164 { 165 struct rte_ether_hdr *eth; 166 void *tmp; 167 168 eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); 169 170 /* 02:00:00:00:00:xx */ 171 tmp = ð->d_addr.addr_bytes[0]; 172 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40); 173 174 /* src addr */ 175 rte_ether_addr_copy(&l2fwd_ports_eth_addr[dest_portid], ð->s_addr); 176 } 177 178 static void 179 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) 180 { 181 unsigned dst_port; 182 int sent; 183 struct rte_eth_dev_tx_buffer *buffer; 184 185 dst_port = l2fwd_dst_ports[portid]; 186 187 if (mac_updating) 188 l2fwd_mac_updating(m, dst_port); 189 190 buffer = tx_buffer[dst_port]; 191 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); 192 if (sent) 193 port_statistics[dst_port].tx += sent; 194 } 195 196 /* main processing loop */ 197 static void 198 l2fwd_main_loop(void) 199 { 200 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 201 struct rte_mbuf *m; 202 int sent; 203 unsigned lcore_id; 204 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc; 205 unsigned i, j, portid, nb_rx; 206 struct lcore_queue_conf *qconf; 207 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * 208 BURST_TX_DRAIN_US; 209 struct rte_eth_dev_tx_buffer *buffer; 210 211 prev_tsc = 0; 212 timer_tsc = 0; 213 214 lcore_id = rte_lcore_id(); 215 qconf = &lcore_queue_conf[lcore_id]; 216 217 if (qconf->n_rx_port == 0) { 218 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id); 219 return; 220 } 221 222 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id); 223 224 for (i = 0; i < qconf->n_rx_port; i++) { 225 226 portid = qconf->rx_port_list[i]; 227 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id, 228 portid); 229 230 } 231 232 while (!force_quit) { 233 234 cur_tsc = rte_rdtsc(); 235 236 /* 237 * TX burst queue drain 238 */ 239 diff_tsc = cur_tsc - prev_tsc; 240 if (unlikely(diff_tsc > drain_tsc)) { 241 242 for (i = 0; i < qconf->n_rx_port; i++) { 243 244 portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; 245 buffer = tx_buffer[portid]; 246 247 sent = rte_eth_tx_buffer_flush(portid, 0, buffer); 248 if (sent) 249 port_statistics[portid].tx += sent; 250 251 } 252 253 /* if timer is enabled */ 254 if (timer_period > 0) { 255 256 /* advance the timer */ 257 timer_tsc += diff_tsc; 258 259 /* if timer has reached its timeout */ 260 if (unlikely(timer_tsc >= timer_period)) { 261 262 /* do this only on main core */ 263 if (lcore_id == rte_get_main_lcore()) { 264 print_stats(); 265 /* reset the timer */ 266 timer_tsc = 0; 267 } 268 } 269 } 270 271 prev_tsc = cur_tsc; 272 } 273 274 /* 275 * Read packet from RX queues 276 */ 277 for (i = 0; i < qconf->n_rx_port; i++) { 278 279 portid = qconf->rx_port_list[i]; 280 nb_rx = rte_eth_rx_burst(portid, 0, 281 pkts_burst, MAX_PKT_BURST); 282 283 port_statistics[portid].rx += nb_rx; 284 285 for (j = 0; j < nb_rx; j++) { 286 m = pkts_burst[j]; 287 rte_prefetch0(rte_pktmbuf_mtod(m, void *)); 288 l2fwd_simple_forward(m, portid); 289 } 290 } 291 } 292 } 293 294 static int 295 l2fwd_launch_one_lcore(__rte_unused void *dummy) 296 { 297 l2fwd_main_loop(); 298 return 0; 299 } 300 301 /* display usage */ 302 static void 303 l2fwd_usage(const char *prgname) 304 { 305 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" 306 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 307 " -q NQ: number of queue (=ports) per lcore (default is 1)\n" 308 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n" 309 " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n" 310 " When enabled:\n" 311 " - The source MAC address is replaced by the TX port MAC address\n" 312 " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n" 313 " --portmap: Configure forwarding port pair mapping\n" 314 " Default: alternate port pairs\n\n", 315 prgname); 316 } 317 318 static int 319 l2fwd_parse_portmask(const char *portmask) 320 { 321 char *end = NULL; 322 unsigned long pm; 323 324 /* parse hexadecimal string */ 325 pm = strtoul(portmask, &end, 16); 326 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 327 return 0; 328 329 return pm; 330 } 331 332 static int 333 l2fwd_parse_port_pair_config(const char *q_arg) 334 { 335 enum fieldnames { 336 FLD_PORT1 = 0, 337 FLD_PORT2, 338 _NUM_FLD 339 }; 340 unsigned long int_fld[_NUM_FLD]; 341 const char *p, *p0 = q_arg; 342 char *str_fld[_NUM_FLD]; 343 unsigned int size; 344 char s[256]; 345 char *end; 346 int i; 347 348 nb_port_pair_params = 0; 349 350 while ((p = strchr(p0, '(')) != NULL) { 351 ++p; 352 p0 = strchr(p, ')'); 353 if (p0 == NULL) 354 return -1; 355 356 size = p0 - p; 357 if (size >= sizeof(s)) 358 return -1; 359 360 memcpy(s, p, size); 361 s[size] = '\0'; 362 if (rte_strsplit(s, sizeof(s), str_fld, 363 _NUM_FLD, ',') != _NUM_FLD) 364 return -1; 365 for (i = 0; i < _NUM_FLD; i++) { 366 errno = 0; 367 int_fld[i] = strtoul(str_fld[i], &end, 0); 368 if (errno != 0 || end == str_fld[i] || 369 int_fld[i] >= RTE_MAX_ETHPORTS) 370 return -1; 371 } 372 if (nb_port_pair_params >= RTE_MAX_ETHPORTS/2) { 373 printf("exceeded max number of port pair params: %hu\n", 374 nb_port_pair_params); 375 return -1; 376 } 377 port_pair_params_array[nb_port_pair_params].port[0] = 378 (uint16_t)int_fld[FLD_PORT1]; 379 port_pair_params_array[nb_port_pair_params].port[1] = 380 (uint16_t)int_fld[FLD_PORT2]; 381 ++nb_port_pair_params; 382 } 383 port_pair_params = port_pair_params_array; 384 return 0; 385 } 386 387 static unsigned int 388 l2fwd_parse_nqueue(const char *q_arg) 389 { 390 char *end = NULL; 391 unsigned long n; 392 393 /* parse hexadecimal string */ 394 n = strtoul(q_arg, &end, 10); 395 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 396 return 0; 397 if (n == 0) 398 return 0; 399 if (n >= MAX_RX_QUEUE_PER_LCORE) 400 return 0; 401 402 return n; 403 } 404 405 static int 406 l2fwd_parse_timer_period(const char *q_arg) 407 { 408 char *end = NULL; 409 int n; 410 411 /* parse number string */ 412 n = strtol(q_arg, &end, 10); 413 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 414 return -1; 415 if (n >= MAX_TIMER_PERIOD) 416 return -1; 417 418 return n; 419 } 420 421 static const char short_options[] = 422 "p:" /* portmask */ 423 "q:" /* number of queues */ 424 "T:" /* timer period */ 425 ; 426 427 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating" 428 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" 429 #define CMD_LINE_OPT_PORTMAP_CONFIG "portmap" 430 431 enum { 432 /* long options mapped to a short option */ 433 434 /* first long only option value must be >= 256, so that we won't 435 * conflict with short options */ 436 CMD_LINE_OPT_MIN_NUM = 256, 437 CMD_LINE_OPT_PORTMAP_NUM, 438 }; 439 440 static const struct option lgopts[] = { 441 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1}, 442 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0}, 443 { CMD_LINE_OPT_PORTMAP_CONFIG, 1, 0, CMD_LINE_OPT_PORTMAP_NUM}, 444 {NULL, 0, 0, 0} 445 }; 446 447 /* Parse the argument given in the command line of the application */ 448 static int 449 l2fwd_parse_args(int argc, char **argv) 450 { 451 int opt, ret, timer_secs; 452 char **argvopt; 453 int option_index; 454 char *prgname = argv[0]; 455 456 argvopt = argv; 457 port_pair_params = NULL; 458 459 while ((opt = getopt_long(argc, argvopt, short_options, 460 lgopts, &option_index)) != EOF) { 461 462 switch (opt) { 463 /* portmask */ 464 case 'p': 465 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg); 466 if (l2fwd_enabled_port_mask == 0) { 467 printf("invalid portmask\n"); 468 l2fwd_usage(prgname); 469 return -1; 470 } 471 break; 472 473 /* nqueue */ 474 case 'q': 475 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg); 476 if (l2fwd_rx_queue_per_lcore == 0) { 477 printf("invalid queue number\n"); 478 l2fwd_usage(prgname); 479 return -1; 480 } 481 break; 482 483 /* timer period */ 484 case 'T': 485 timer_secs = l2fwd_parse_timer_period(optarg); 486 if (timer_secs < 0) { 487 printf("invalid timer period\n"); 488 l2fwd_usage(prgname); 489 return -1; 490 } 491 timer_period = timer_secs; 492 break; 493 494 /* long options */ 495 case CMD_LINE_OPT_PORTMAP_NUM: 496 ret = l2fwd_parse_port_pair_config(optarg); 497 if (ret) { 498 fprintf(stderr, "Invalid config\n"); 499 l2fwd_usage(prgname); 500 return -1; 501 } 502 break; 503 504 default: 505 l2fwd_usage(prgname); 506 return -1; 507 } 508 } 509 510 if (optind >= 0) 511 argv[optind-1] = prgname; 512 513 ret = optind-1; 514 optind = 1; /* reset getopt lib */ 515 return ret; 516 } 517 518 /* 519 * Check port pair config with enabled port mask, 520 * and for valid port pair combinations. 521 */ 522 static int 523 check_port_pair_config(void) 524 { 525 uint32_t port_pair_config_mask = 0; 526 uint32_t port_pair_mask = 0; 527 uint16_t index, i, portid; 528 529 for (index = 0; index < nb_port_pair_params; index++) { 530 port_pair_mask = 0; 531 532 for (i = 0; i < NUM_PORTS; i++) { 533 portid = port_pair_params[index].port[i]; 534 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 535 printf("port %u is not enabled in port mask\n", 536 portid); 537 return -1; 538 } 539 if (!rte_eth_dev_is_valid_port(portid)) { 540 printf("port %u is not present on the board\n", 541 portid); 542 return -1; 543 } 544 545 port_pair_mask |= 1 << portid; 546 } 547 548 if (port_pair_config_mask & port_pair_mask) { 549 printf("port %u is used in other port pairs\n", portid); 550 return -1; 551 } 552 port_pair_config_mask |= port_pair_mask; 553 } 554 555 l2fwd_enabled_port_mask &= port_pair_config_mask; 556 557 return 0; 558 } 559 560 /* Check the link status of all ports in up to 9s, and print them finally */ 561 static void 562 check_all_ports_link_status(uint32_t port_mask) 563 { 564 #define CHECK_INTERVAL 100 /* 100ms */ 565 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 566 uint16_t portid; 567 uint8_t count, all_ports_up, print_flag = 0; 568 struct rte_eth_link link; 569 int ret; 570 char link_status_text[RTE_ETH_LINK_MAX_STR_LEN]; 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 rte_eth_link_to_str(link_status_text, 595 sizeof(link_status_text), &link); 596 printf("Port %d %s\n", portid, 597 link_status_text); 598 continue; 599 } 600 /* clear all_ports_up flag if any link down */ 601 if (link.link_status == ETH_LINK_DOWN) { 602 all_ports_up = 0; 603 break; 604 } 605 } 606 /* after finally printing all link status, get out */ 607 if (print_flag == 1) 608 break; 609 610 if (all_ports_up == 0) { 611 printf("."); 612 fflush(stdout); 613 rte_delay_ms(CHECK_INTERVAL); 614 } 615 616 /* set the print_flag if all ports up or timeout */ 617 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 618 print_flag = 1; 619 printf("done\n"); 620 } 621 } 622 } 623 624 static void 625 signal_handler(int signum) 626 { 627 if (signum == SIGINT || signum == SIGTERM) { 628 printf("\n\nSignal %d received, preparing to exit...\n", 629 signum); 630 force_quit = true; 631 } 632 } 633 634 int 635 main(int argc, char **argv) 636 { 637 struct lcore_queue_conf *qconf; 638 int ret; 639 uint16_t nb_ports; 640 uint16_t nb_ports_available = 0; 641 uint16_t portid, last_port; 642 unsigned lcore_id, rx_lcore_id; 643 unsigned nb_ports_in_mask = 0; 644 unsigned int nb_lcores = 0; 645 unsigned int nb_mbufs; 646 647 /* init EAL */ 648 ret = rte_eal_init(argc, argv); 649 if (ret < 0) 650 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); 651 argc -= ret; 652 argv += ret; 653 654 force_quit = false; 655 signal(SIGINT, signal_handler); 656 signal(SIGTERM, signal_handler); 657 658 /* parse application arguments (after the EAL ones) */ 659 ret = l2fwd_parse_args(argc, argv); 660 if (ret < 0) 661 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n"); 662 663 printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled"); 664 665 /* convert to number of cycles */ 666 timer_period *= rte_get_timer_hz(); 667 668 nb_ports = rte_eth_dev_count_avail(); 669 if (nb_ports == 0) 670 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); 671 672 if (port_pair_params != NULL) { 673 if (check_port_pair_config() < 0) 674 rte_exit(EXIT_FAILURE, "Invalid port pair config\n"); 675 } 676 677 /* check port mask to possible port mask */ 678 if (l2fwd_enabled_port_mask & ~((1 << nb_ports) - 1)) 679 rte_exit(EXIT_FAILURE, "Invalid portmask; possible (0x%x)\n", 680 (1 << nb_ports) - 1); 681 682 /* reset l2fwd_dst_ports */ 683 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) 684 l2fwd_dst_ports[portid] = 0; 685 last_port = 0; 686 687 /* populate destination port details */ 688 if (port_pair_params != NULL) { 689 uint16_t idx, p; 690 691 for (idx = 0; idx < (nb_port_pair_params << 1); idx++) { 692 p = idx & 1; 693 portid = port_pair_params[idx >> 1].port[p]; 694 l2fwd_dst_ports[portid] = 695 port_pair_params[idx >> 1].port[p ^ 1]; 696 } 697 } else { 698 RTE_ETH_FOREACH_DEV(portid) { 699 /* skip ports that are not enabled */ 700 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 701 continue; 702 703 if (nb_ports_in_mask % 2) { 704 l2fwd_dst_ports[portid] = last_port; 705 l2fwd_dst_ports[last_port] = portid; 706 } else { 707 last_port = portid; 708 } 709 710 nb_ports_in_mask++; 711 } 712 if (nb_ports_in_mask % 2) { 713 printf("Notice: odd number of ports in portmask.\n"); 714 l2fwd_dst_ports[last_port] = last_port; 715 } 716 } 717 718 rx_lcore_id = 0; 719 qconf = NULL; 720 721 /* Initialize the port/queue configuration of each logical core */ 722 RTE_ETH_FOREACH_DEV(portid) { 723 /* skip ports that are not enabled */ 724 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 725 continue; 726 727 /* get the lcore_id for this port */ 728 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 729 lcore_queue_conf[rx_lcore_id].n_rx_port == 730 l2fwd_rx_queue_per_lcore) { 731 rx_lcore_id++; 732 if (rx_lcore_id >= RTE_MAX_LCORE) 733 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 734 } 735 736 if (qconf != &lcore_queue_conf[rx_lcore_id]) { 737 /* Assigned a new logical core in the loop above. */ 738 qconf = &lcore_queue_conf[rx_lcore_id]; 739 nb_lcores++; 740 } 741 742 qconf->rx_port_list[qconf->n_rx_port] = portid; 743 qconf->n_rx_port++; 744 printf("Lcore %u: RX port %u TX port %u\n", rx_lcore_id, 745 portid, l2fwd_dst_ports[portid]); 746 } 747 748 nb_mbufs = RTE_MAX(nb_ports * (nb_rxd + nb_txd + MAX_PKT_BURST + 749 nb_lcores * MEMPOOL_CACHE_SIZE), 8192U); 750 751 /* create the mbuf pool */ 752 l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs, 753 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, 754 rte_socket_id()); 755 if (l2fwd_pktmbuf_pool == NULL) 756 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 757 758 /* Initialise each port */ 759 RTE_ETH_FOREACH_DEV(portid) { 760 struct rte_eth_rxconf rxq_conf; 761 struct rte_eth_txconf txq_conf; 762 struct rte_eth_conf local_port_conf = port_conf; 763 struct rte_eth_dev_info dev_info; 764 765 /* skip ports that are not enabled */ 766 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 767 printf("Skipping disabled port %u\n", portid); 768 continue; 769 } 770 nb_ports_available++; 771 772 /* init port */ 773 printf("Initializing port %u... ", portid); 774 fflush(stdout); 775 776 ret = rte_eth_dev_info_get(portid, &dev_info); 777 if (ret != 0) 778 rte_exit(EXIT_FAILURE, 779 "Error during getting device (port %u) info: %s\n", 780 portid, strerror(-ret)); 781 782 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 783 local_port_conf.txmode.offloads |= 784 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 785 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf); 786 if (ret < 0) 787 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", 788 ret, portid); 789 790 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 791 &nb_txd); 792 if (ret < 0) 793 rte_exit(EXIT_FAILURE, 794 "Cannot adjust number of descriptors: err=%d, port=%u\n", 795 ret, portid); 796 797 ret = rte_eth_macaddr_get(portid, 798 &l2fwd_ports_eth_addr[portid]); 799 if (ret < 0) 800 rte_exit(EXIT_FAILURE, 801 "Cannot get MAC address: err=%d, port=%u\n", 802 ret, portid); 803 804 /* init one RX queue */ 805 fflush(stdout); 806 rxq_conf = dev_info.default_rxconf; 807 rxq_conf.offloads = local_port_conf.rxmode.offloads; 808 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 809 rte_eth_dev_socket_id(portid), 810 &rxq_conf, 811 l2fwd_pktmbuf_pool); 812 if (ret < 0) 813 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n", 814 ret, portid); 815 816 /* init one TX queue on each port */ 817 fflush(stdout); 818 txq_conf = dev_info.default_txconf; 819 txq_conf.offloads = local_port_conf.txmode.offloads; 820 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, 821 rte_eth_dev_socket_id(portid), 822 &txq_conf); 823 if (ret < 0) 824 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", 825 ret, portid); 826 827 /* Initialize TX buffers */ 828 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 829 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 830 rte_eth_dev_socket_id(portid)); 831 if (tx_buffer[portid] == NULL) 832 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", 833 portid); 834 835 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); 836 837 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], 838 rte_eth_tx_buffer_count_callback, 839 &port_statistics[portid].dropped); 840 if (ret < 0) 841 rte_exit(EXIT_FAILURE, 842 "Cannot set error callback for tx buffer on port %u\n", 843 portid); 844 845 ret = rte_eth_dev_set_ptypes(portid, RTE_PTYPE_UNKNOWN, NULL, 846 0); 847 if (ret < 0) 848 printf("Port %u, Failed to disable Ptype parsing\n", 849 portid); 850 /* Start device */ 851 ret = rte_eth_dev_start(portid); 852 if (ret < 0) 853 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", 854 ret, portid); 855 856 printf("done: \n"); 857 858 ret = rte_eth_promiscuous_enable(portid); 859 if (ret != 0) 860 rte_exit(EXIT_FAILURE, 861 "rte_eth_promiscuous_enable:err=%s, port=%u\n", 862 rte_strerror(-ret), portid); 863 864 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", 865 portid, 866 l2fwd_ports_eth_addr[portid].addr_bytes[0], 867 l2fwd_ports_eth_addr[portid].addr_bytes[1], 868 l2fwd_ports_eth_addr[portid].addr_bytes[2], 869 l2fwd_ports_eth_addr[portid].addr_bytes[3], 870 l2fwd_ports_eth_addr[portid].addr_bytes[4], 871 l2fwd_ports_eth_addr[portid].addr_bytes[5]); 872 873 /* initialize port stats */ 874 memset(&port_statistics, 0, sizeof(port_statistics)); 875 } 876 877 if (!nb_ports_available) { 878 rte_exit(EXIT_FAILURE, 879 "All available ports are disabled. Please set portmask.\n"); 880 } 881 882 check_all_ports_link_status(l2fwd_enabled_port_mask); 883 884 ret = 0; 885 /* launch per-lcore init on every lcore */ 886 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MAIN); 887 RTE_LCORE_FOREACH_WORKER(lcore_id) { 888 if (rte_eal_wait_lcore(lcore_id) < 0) { 889 ret = -1; 890 break; 891 } 892 } 893 894 RTE_ETH_FOREACH_DEV(portid) { 895 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 896 continue; 897 printf("Closing port %d...", portid); 898 ret = rte_eth_dev_stop(portid); 899 if (ret != 0) 900 printf("rte_eth_dev_stop: err=%d, port=%d\n", 901 ret, portid); 902 rte_eth_dev_close(portid); 903 printf(" Done\n"); 904 } 905 906 /* clean up the EAL */ 907 rte_eal_cleanup(); 908 printf("Bye...\n"); 909 910 return ret; 911 } 912