1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2016 Intel Corporation 3 */ 4 5 #include <signal.h> 6 #include <getopt.h> 7 8 #include <rte_eal.h> 9 #include <rte_common.h> 10 #include <rte_errno.h> 11 #include <rte_ethdev.h> 12 #include <rte_lcore.h> 13 #include <rte_malloc.h> 14 #include <rte_mbuf.h> 15 #include <rte_mempool.h> 16 #include <rte_ring.h> 17 #include <rte_reorder.h> 18 19 #define RX_DESC_PER_QUEUE 1024 20 #define TX_DESC_PER_QUEUE 1024 21 22 #define MAX_PKTS_BURST 32 23 #define REORDER_BUFFER_SIZE 8192 24 #define MBUF_PER_POOL 65535 25 #define MBUF_POOL_CACHE_SIZE 250 26 27 #define RING_SIZE 16384 28 29 /* Macros for printing using RTE_LOG */ 30 #define RTE_LOGTYPE_REORDERAPP RTE_LOGTYPE_USER1 31 32 enum { 33 #define OPT_DISABLE_REORDER "disable-reorder" 34 OPT_DISABLE_REORDER_NUM = 256, 35 #define OPT_INSIGHT_WORKER "insight-worker" 36 OPT_INSIGHT_WORKER_NUM, 37 }; 38 39 unsigned int portmask; 40 unsigned int disable_reorder; 41 unsigned int insight_worker; 42 volatile uint8_t quit_signal; 43 44 static struct rte_mempool *mbuf_pool; 45 46 static struct rte_eth_conf port_conf_default; 47 48 struct worker_thread_args { 49 struct rte_ring *ring_in; 50 struct rte_ring *ring_out; 51 }; 52 53 struct send_thread_args { 54 struct rte_ring *ring_in; 55 struct rte_reorder_buffer *buffer; 56 }; 57 58 volatile struct app_stats { 59 struct { 60 uint64_t rx_pkts; 61 uint64_t enqueue_pkts; 62 uint64_t enqueue_failed_pkts; 63 } rx __rte_cache_aligned; 64 65 struct { 66 uint64_t dequeue_pkts; 67 uint64_t enqueue_pkts; 68 uint64_t enqueue_failed_pkts; 69 } wkr __rte_cache_aligned; 70 71 struct { 72 uint64_t dequeue_pkts; 73 /* Too early pkts transmitted directly w/o reordering */ 74 uint64_t early_pkts_txtd_woro; 75 /* Too early pkts failed from direct transmit */ 76 uint64_t early_pkts_tx_failed_woro; 77 uint64_t ro_tx_pkts; 78 uint64_t ro_tx_failed_pkts; 79 } tx __rte_cache_aligned; 80 } app_stats; 81 82 /* per worker lcore stats */ 83 struct wkr_stats_per { 84 uint64_t deq_pkts; 85 uint64_t enq_pkts; 86 uint64_t enq_failed_pkts; 87 } __rte_cache_aligned; 88 89 static struct wkr_stats_per wkr_stats[RTE_MAX_LCORE] = { {0} }; 90 /** 91 * Get the last enabled lcore ID 92 * 93 * @return 94 * The last enabled lcore ID. 95 */ 96 static unsigned int 97 get_last_lcore_id(void) 98 { 99 int i; 100 101 for (i = RTE_MAX_LCORE - 1; i >= 0; i--) 102 if (rte_lcore_is_enabled(i)) 103 return i; 104 return 0; 105 } 106 107 /** 108 * Get the previous enabled lcore ID 109 * @param id 110 * The current lcore ID 111 * @return 112 * The previous enabled lcore ID or the current lcore 113 * ID if it is the first available core. 114 */ 115 static unsigned int 116 get_previous_lcore_id(unsigned int id) 117 { 118 int i; 119 120 for (i = id - 1; i >= 0; i--) 121 if (rte_lcore_is_enabled(i)) 122 return i; 123 return id; 124 } 125 126 static inline void 127 pktmbuf_free_bulk(struct rte_mbuf *mbuf_table[], unsigned n) 128 { 129 unsigned int i; 130 131 for (i = 0; i < n; i++) 132 rte_pktmbuf_free(mbuf_table[i]); 133 } 134 135 /* display usage */ 136 static void 137 print_usage(const char *prgname) 138 { 139 printf("%s [EAL options] -- -p PORTMASK\n" 140 " -p PORTMASK: hexadecimal bitmask of ports to configure\n", 141 prgname); 142 } 143 144 static int 145 parse_portmask(const char *portmask) 146 { 147 unsigned long pm; 148 char *end = NULL; 149 150 /* parse hexadecimal string */ 151 pm = strtoul(portmask, &end, 16); 152 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 153 return 0; 154 155 return pm; 156 } 157 158 /* Parse the argument given in the command line of the application */ 159 static int 160 parse_args(int argc, char **argv) 161 { 162 int opt; 163 int option_index; 164 char **argvopt; 165 char *prgname = argv[0]; 166 static struct option lgopts[] = { 167 {OPT_DISABLE_REORDER, 0, NULL, OPT_DISABLE_REORDER_NUM}, 168 {OPT_INSIGHT_WORKER, 0, NULL, OPT_INSIGHT_WORKER_NUM }, 169 {NULL, 0, 0, 0 } 170 }; 171 172 argvopt = argv; 173 174 while ((opt = getopt_long(argc, argvopt, "p:", 175 lgopts, &option_index)) != EOF) { 176 switch (opt) { 177 /* portmask */ 178 case 'p': 179 portmask = parse_portmask(optarg); 180 if (portmask == 0) { 181 printf("invalid portmask\n"); 182 print_usage(prgname); 183 return -1; 184 } 185 break; 186 187 /* long options */ 188 case OPT_DISABLE_REORDER_NUM: 189 printf("reorder disabled\n"); 190 disable_reorder = 1; 191 break; 192 193 case OPT_INSIGHT_WORKER_NUM: 194 printf("print all worker statistics\n"); 195 insight_worker = 1; 196 break; 197 198 default: 199 print_usage(prgname); 200 return -1; 201 } 202 } 203 if (optind <= 1) { 204 print_usage(prgname); 205 return -1; 206 } 207 208 argv[optind-1] = prgname; 209 optind = 1; /* reset getopt lib */ 210 return 0; 211 } 212 213 /* 214 * Tx buffer error callback 215 */ 216 static void 217 flush_tx_error_callback(struct rte_mbuf **unsent, uint16_t count, 218 void *userdata __rte_unused) { 219 220 /* free the mbufs which failed from transmit */ 221 app_stats.tx.ro_tx_failed_pkts += count; 222 RTE_LOG_DP(DEBUG, REORDERAPP, "%s:Packet loss with tx_burst\n", __func__); 223 pktmbuf_free_bulk(unsent, count); 224 225 } 226 227 static inline int 228 free_tx_buffers(struct rte_eth_dev_tx_buffer *tx_buffer[]) { 229 uint16_t port_id; 230 231 /* initialize buffers for all ports */ 232 RTE_ETH_FOREACH_DEV(port_id) { 233 /* skip ports that are not enabled */ 234 if ((portmask & (1 << port_id)) == 0) 235 continue; 236 237 rte_free(tx_buffer[port_id]); 238 } 239 return 0; 240 } 241 242 static inline int 243 configure_tx_buffers(struct rte_eth_dev_tx_buffer *tx_buffer[]) 244 { 245 uint16_t port_id; 246 int ret; 247 248 /* initialize buffers for all ports */ 249 RTE_ETH_FOREACH_DEV(port_id) { 250 /* skip ports that are not enabled */ 251 if ((portmask & (1 << port_id)) == 0) 252 continue; 253 254 /* Initialize TX buffers */ 255 tx_buffer[port_id] = rte_zmalloc_socket("tx_buffer", 256 RTE_ETH_TX_BUFFER_SIZE(MAX_PKTS_BURST), 0, 257 rte_eth_dev_socket_id(port_id)); 258 if (tx_buffer[port_id] == NULL) 259 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", 260 port_id); 261 262 rte_eth_tx_buffer_init(tx_buffer[port_id], MAX_PKTS_BURST); 263 264 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[port_id], 265 flush_tx_error_callback, NULL); 266 if (ret < 0) 267 rte_exit(EXIT_FAILURE, 268 "Cannot set error callback for tx buffer on port %u\n", 269 port_id); 270 } 271 return 0; 272 } 273 274 static inline int 275 configure_eth_port(uint16_t port_id) 276 { 277 struct rte_ether_addr addr; 278 const uint16_t rxRings = 1, txRings = 1; 279 int ret; 280 uint16_t q; 281 uint16_t nb_rxd = RX_DESC_PER_QUEUE; 282 uint16_t nb_txd = TX_DESC_PER_QUEUE; 283 struct rte_eth_dev_info dev_info; 284 struct rte_eth_txconf txconf; 285 struct rte_eth_conf port_conf = port_conf_default; 286 287 if (!rte_eth_dev_is_valid_port(port_id)) 288 return -1; 289 290 ret = rte_eth_dev_info_get(port_id, &dev_info); 291 if (ret != 0) { 292 printf("Error during getting device (port %u) info: %s\n", 293 port_id, strerror(-ret)); 294 return ret; 295 } 296 297 if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE) 298 port_conf.txmode.offloads |= 299 RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE; 300 ret = rte_eth_dev_configure(port_id, rxRings, txRings, &port_conf); 301 if (ret != 0) 302 return ret; 303 304 ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd, &nb_txd); 305 if (ret != 0) 306 return ret; 307 308 for (q = 0; q < rxRings; q++) { 309 ret = rte_eth_rx_queue_setup(port_id, q, nb_rxd, 310 rte_eth_dev_socket_id(port_id), NULL, 311 mbuf_pool); 312 if (ret < 0) 313 return ret; 314 } 315 316 txconf = dev_info.default_txconf; 317 txconf.offloads = port_conf.txmode.offloads; 318 for (q = 0; q < txRings; q++) { 319 ret = rte_eth_tx_queue_setup(port_id, q, nb_txd, 320 rte_eth_dev_socket_id(port_id), &txconf); 321 if (ret < 0) 322 return ret; 323 } 324 325 ret = rte_eth_dev_start(port_id); 326 if (ret < 0) 327 return ret; 328 329 ret = rte_eth_macaddr_get(port_id, &addr); 330 if (ret != 0) { 331 printf("Failed to get MAC address (port %u): %s\n", 332 port_id, rte_strerror(-ret)); 333 return ret; 334 } 335 336 printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8 337 " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n", 338 port_id, RTE_ETHER_ADDR_BYTES(&addr)); 339 340 ret = rte_eth_promiscuous_enable(port_id); 341 if (ret != 0) 342 return ret; 343 344 return 0; 345 } 346 347 static void 348 print_stats(void) 349 { 350 uint16_t i; 351 struct rte_eth_stats eth_stats; 352 unsigned int lcore_id, last_lcore_id, main_lcore_id, end_w_lcore_id; 353 354 last_lcore_id = get_last_lcore_id(); 355 main_lcore_id = rte_get_main_lcore(); 356 end_w_lcore_id = get_previous_lcore_id(last_lcore_id); 357 358 printf("\nRX thread stats:\n"); 359 printf(" - Pkts rxd: %"PRIu64"\n", 360 app_stats.rx.rx_pkts); 361 printf(" - Pkts enqd to workers ring: %"PRIu64"\n", 362 app_stats.rx.enqueue_pkts); 363 364 for (lcore_id = 0; lcore_id <= end_w_lcore_id; lcore_id++) { 365 if (insight_worker 366 && rte_lcore_is_enabled(lcore_id) 367 && lcore_id != main_lcore_id) { 368 printf("\nWorker thread stats on core [%u]:\n", 369 lcore_id); 370 printf(" - Pkts deqd from workers ring: %"PRIu64"\n", 371 wkr_stats[lcore_id].deq_pkts); 372 printf(" - Pkts enqd to tx ring: %"PRIu64"\n", 373 wkr_stats[lcore_id].enq_pkts); 374 printf(" - Pkts enq to tx failed: %"PRIu64"\n", 375 wkr_stats[lcore_id].enq_failed_pkts); 376 } 377 378 app_stats.wkr.dequeue_pkts += wkr_stats[lcore_id].deq_pkts; 379 app_stats.wkr.enqueue_pkts += wkr_stats[lcore_id].enq_pkts; 380 app_stats.wkr.enqueue_failed_pkts += 381 wkr_stats[lcore_id].enq_failed_pkts; 382 } 383 384 printf("\nWorker thread stats:\n"); 385 printf(" - Pkts deqd from workers ring: %"PRIu64"\n", 386 app_stats.wkr.dequeue_pkts); 387 printf(" - Pkts enqd to tx ring: %"PRIu64"\n", 388 app_stats.wkr.enqueue_pkts); 389 printf(" - Pkts enq to tx failed: %"PRIu64"\n", 390 app_stats.wkr.enqueue_failed_pkts); 391 392 printf("\nTX stats:\n"); 393 printf(" - Pkts deqd from tx ring: %"PRIu64"\n", 394 app_stats.tx.dequeue_pkts); 395 printf(" - Ro Pkts transmitted: %"PRIu64"\n", 396 app_stats.tx.ro_tx_pkts); 397 printf(" - Ro Pkts tx failed: %"PRIu64"\n", 398 app_stats.tx.ro_tx_failed_pkts); 399 printf(" - Pkts transmitted w/o reorder: %"PRIu64"\n", 400 app_stats.tx.early_pkts_txtd_woro); 401 printf(" - Pkts tx failed w/o reorder: %"PRIu64"\n", 402 app_stats.tx.early_pkts_tx_failed_woro); 403 404 RTE_ETH_FOREACH_DEV(i) { 405 rte_eth_stats_get(i, ð_stats); 406 printf("\nPort %u stats:\n", i); 407 printf(" - Pkts in: %"PRIu64"\n", eth_stats.ipackets); 408 printf(" - Pkts out: %"PRIu64"\n", eth_stats.opackets); 409 printf(" - In Errs: %"PRIu64"\n", eth_stats.ierrors); 410 printf(" - Out Errs: %"PRIu64"\n", eth_stats.oerrors); 411 printf(" - Mbuf Errs: %"PRIu64"\n", eth_stats.rx_nombuf); 412 } 413 } 414 415 static void 416 int_handler(int sig_num) 417 { 418 printf("Exiting on signal %d\n", sig_num); 419 quit_signal = 1; 420 } 421 422 /** 423 * This thread receives mbufs from the port and affects them an internal 424 * sequence number to keep track of their order of arrival through an 425 * mbuf structure. 426 * The mbufs are then passed to the worker threads via the rx_to_workers 427 * ring. 428 */ 429 static int 430 rx_thread(struct rte_ring *ring_out) 431 { 432 uint32_t seqn = 0; 433 uint16_t i, ret = 0; 434 uint16_t nb_rx_pkts; 435 uint16_t port_id; 436 struct rte_mbuf *pkts[MAX_PKTS_BURST]; 437 438 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 439 rte_lcore_id()); 440 441 while (!quit_signal) { 442 443 RTE_ETH_FOREACH_DEV(port_id) { 444 if ((portmask & (1 << port_id)) != 0) { 445 446 /* receive packets */ 447 nb_rx_pkts = rte_eth_rx_burst(port_id, 0, 448 pkts, MAX_PKTS_BURST); 449 if (nb_rx_pkts == 0) { 450 RTE_LOG_DP(DEBUG, REORDERAPP, 451 "%s():Received zero packets\n", __func__); 452 continue; 453 } 454 app_stats.rx.rx_pkts += nb_rx_pkts; 455 456 /* mark sequence number */ 457 for (i = 0; i < nb_rx_pkts; ) 458 *rte_reorder_seqn(pkts[i++]) = seqn++; 459 460 /* enqueue to rx_to_workers ring */ 461 ret = rte_ring_enqueue_burst(ring_out, 462 (void *)pkts, nb_rx_pkts, NULL); 463 app_stats.rx.enqueue_pkts += ret; 464 if (unlikely(ret < nb_rx_pkts)) { 465 app_stats.rx.enqueue_failed_pkts += 466 (nb_rx_pkts-ret); 467 pktmbuf_free_bulk(&pkts[ret], nb_rx_pkts - ret); 468 } 469 } 470 } 471 } 472 return 0; 473 } 474 475 /** 476 * This thread takes bursts of packets from the rx_to_workers ring and 477 * Changes the input port value to output port value. And feds it to 478 * workers_to_tx 479 */ 480 static int 481 worker_thread(void *args_ptr) 482 { 483 const uint16_t nb_ports = rte_eth_dev_count_avail(); 484 uint16_t i, ret = 0; 485 uint16_t burst_size = 0; 486 struct worker_thread_args *args; 487 struct rte_mbuf *burst_buffer[MAX_PKTS_BURST] = { NULL }; 488 struct rte_ring *ring_in, *ring_out; 489 const unsigned xor_val = (nb_ports > 1); 490 unsigned int core_id = rte_lcore_id(); 491 492 args = (struct worker_thread_args *) args_ptr; 493 ring_in = args->ring_in; 494 ring_out = args->ring_out; 495 496 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 497 core_id); 498 499 while (!quit_signal) { 500 501 /* dequeue the mbufs from rx_to_workers ring */ 502 burst_size = rte_ring_dequeue_burst(ring_in, 503 (void *)burst_buffer, MAX_PKTS_BURST, NULL); 504 if (unlikely(burst_size == 0)) 505 continue; 506 507 wkr_stats[core_id].deq_pkts += burst_size; 508 509 /* just do some operation on mbuf */ 510 for (i = 0; i < burst_size;) 511 burst_buffer[i++]->port ^= xor_val; 512 513 /* enqueue the modified mbufs to workers_to_tx ring */ 514 ret = rte_ring_enqueue_burst(ring_out, (void *)burst_buffer, 515 burst_size, NULL); 516 wkr_stats[core_id].enq_pkts += ret; 517 if (unlikely(ret < burst_size)) { 518 /* Return the mbufs to their respective pool, dropping packets */ 519 wkr_stats[core_id].enq_failed_pkts += burst_size - ret; 520 pktmbuf_free_bulk(&burst_buffer[ret], burst_size - ret); 521 } 522 } 523 return 0; 524 } 525 526 /** 527 * Dequeue mbufs from the workers_to_tx ring and reorder them before 528 * transmitting. 529 */ 530 static int 531 send_thread(struct send_thread_args *args) 532 { 533 int ret; 534 unsigned int i, dret; 535 uint16_t nb_dq_mbufs; 536 uint8_t outp; 537 unsigned sent; 538 struct rte_mbuf *mbufs[MAX_PKTS_BURST]; 539 struct rte_mbuf *rombufs[MAX_PKTS_BURST] = {NULL}; 540 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 541 542 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, rte_lcore_id()); 543 544 configure_tx_buffers(tx_buffer); 545 546 while (!quit_signal) { 547 548 /* deque the mbufs from workers_to_tx ring */ 549 nb_dq_mbufs = rte_ring_dequeue_burst(args->ring_in, 550 (void *)mbufs, MAX_PKTS_BURST, NULL); 551 552 if (unlikely(nb_dq_mbufs == 0)) 553 continue; 554 555 app_stats.tx.dequeue_pkts += nb_dq_mbufs; 556 557 for (i = 0; i < nb_dq_mbufs; i++) { 558 /* send dequeued mbufs for reordering */ 559 ret = rte_reorder_insert(args->buffer, mbufs[i]); 560 561 if (ret == -1 && rte_errno == ERANGE) { 562 /* Too early pkts should be transmitted out directly */ 563 RTE_LOG_DP(DEBUG, REORDERAPP, 564 "%s():Cannot reorder early packet " 565 "direct enqueuing to TX\n", __func__); 566 outp = mbufs[i]->port; 567 if ((portmask & (1 << outp)) == 0) { 568 rte_pktmbuf_free(mbufs[i]); 569 continue; 570 } 571 if (rte_eth_tx_burst(outp, 0, (void *)mbufs[i], 1) != 1) { 572 rte_pktmbuf_free(mbufs[i]); 573 app_stats.tx.early_pkts_tx_failed_woro++; 574 } else 575 app_stats.tx.early_pkts_txtd_woro++; 576 } else if (ret == -1 && rte_errno == ENOSPC) { 577 /** 578 * Early pkts just outside of window should be dropped 579 */ 580 rte_pktmbuf_free(mbufs[i]); 581 } 582 } 583 584 /* 585 * drain MAX_PKTS_BURST of reordered 586 * mbufs for transmit 587 */ 588 dret = rte_reorder_drain(args->buffer, rombufs, MAX_PKTS_BURST); 589 for (i = 0; i < dret; i++) { 590 591 struct rte_eth_dev_tx_buffer *outbuf; 592 uint8_t outp1; 593 594 outp1 = rombufs[i]->port; 595 /* skip ports that are not enabled */ 596 if ((portmask & (1 << outp1)) == 0) { 597 rte_pktmbuf_free(rombufs[i]); 598 continue; 599 } 600 601 outbuf = tx_buffer[outp1]; 602 sent = rte_eth_tx_buffer(outp1, 0, outbuf, rombufs[i]); 603 if (sent) 604 app_stats.tx.ro_tx_pkts += sent; 605 } 606 } 607 608 free_tx_buffers(tx_buffer); 609 610 return 0; 611 } 612 613 /** 614 * Dequeue mbufs from the workers_to_tx ring and transmit them 615 */ 616 static int 617 tx_thread(struct rte_ring *ring_in) 618 { 619 uint32_t i, dqnum; 620 uint8_t outp; 621 unsigned sent; 622 struct rte_mbuf *mbufs[MAX_PKTS_BURST]; 623 struct rte_eth_dev_tx_buffer *outbuf; 624 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 625 626 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 627 rte_lcore_id()); 628 629 configure_tx_buffers(tx_buffer); 630 631 while (!quit_signal) { 632 633 /* deque the mbufs from workers_to_tx ring */ 634 dqnum = rte_ring_dequeue_burst(ring_in, 635 (void *)mbufs, MAX_PKTS_BURST, NULL); 636 637 if (unlikely(dqnum == 0)) 638 continue; 639 640 app_stats.tx.dequeue_pkts += dqnum; 641 642 for (i = 0; i < dqnum; i++) { 643 outp = mbufs[i]->port; 644 /* skip ports that are not enabled */ 645 if ((portmask & (1 << outp)) == 0) { 646 rte_pktmbuf_free(mbufs[i]); 647 continue; 648 } 649 650 outbuf = tx_buffer[outp]; 651 sent = rte_eth_tx_buffer(outp, 0, outbuf, mbufs[i]); 652 if (sent) 653 app_stats.tx.ro_tx_pkts += sent; 654 } 655 } 656 657 return 0; 658 } 659 660 int 661 main(int argc, char **argv) 662 { 663 int ret; 664 unsigned nb_ports; 665 unsigned int lcore_id, last_lcore_id, main_lcore_id; 666 uint16_t port_id; 667 uint16_t nb_ports_available; 668 struct worker_thread_args worker_args = {NULL, NULL}; 669 struct send_thread_args send_args = {NULL, NULL}; 670 struct rte_ring *rx_to_workers; 671 struct rte_ring *workers_to_tx; 672 673 /* catch ctrl-c so we can print on exit */ 674 signal(SIGINT, int_handler); 675 676 /* Initialize EAL */ 677 ret = rte_eal_init(argc, argv); 678 if (ret < 0) 679 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); 680 681 argc -= ret; 682 argv += ret; 683 684 /* Parse the application specific arguments */ 685 ret = parse_args(argc, argv); 686 if (ret < 0) 687 rte_exit(EXIT_FAILURE, "Invalid packet_ordering arguments\n"); 688 689 /* Check if we have enought cores */ 690 if (rte_lcore_count() < 3) 691 rte_exit(EXIT_FAILURE, "Error, This application needs at " 692 "least 3 logical cores to run:\n" 693 "1 lcore for packet RX\n" 694 "1 lcore for packet TX\n" 695 "and at least 1 lcore for worker threads\n"); 696 697 nb_ports = rte_eth_dev_count_avail(); 698 if (nb_ports == 0) 699 rte_exit(EXIT_FAILURE, "Error: no ethernet ports detected\n"); 700 if (nb_ports != 1 && (nb_ports & 1)) 701 rte_exit(EXIT_FAILURE, "Error: number of ports must be even, except " 702 "when using a single port\n"); 703 704 mbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", MBUF_PER_POOL, 705 MBUF_POOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, 706 rte_socket_id()); 707 if (mbuf_pool == NULL) 708 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 709 710 nb_ports_available = nb_ports; 711 712 /* initialize all ports */ 713 RTE_ETH_FOREACH_DEV(port_id) { 714 /* skip ports that are not enabled */ 715 if ((portmask & (1 << port_id)) == 0) { 716 printf("\nSkipping disabled port %d\n", port_id); 717 nb_ports_available--; 718 continue; 719 } 720 /* init port */ 721 printf("Initializing port %u... done\n", port_id); 722 723 if (configure_eth_port(port_id) != 0) 724 rte_exit(EXIT_FAILURE, "Cannot initialize port %"PRIu8"\n", 725 port_id); 726 } 727 728 if (!nb_ports_available) { 729 rte_exit(EXIT_FAILURE, 730 "All available ports are disabled. Please set portmask.\n"); 731 } 732 733 /* Create rings for inter core communication */ 734 rx_to_workers = rte_ring_create("rx_to_workers", RING_SIZE, rte_socket_id(), 735 RING_F_SP_ENQ); 736 if (rx_to_workers == NULL) 737 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 738 739 workers_to_tx = rte_ring_create("workers_to_tx", RING_SIZE, rte_socket_id(), 740 RING_F_SC_DEQ); 741 if (workers_to_tx == NULL) 742 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 743 744 if (!disable_reorder) { 745 send_args.buffer = rte_reorder_create("PKT_RO", rte_socket_id(), 746 REORDER_BUFFER_SIZE); 747 if (send_args.buffer == NULL) 748 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 749 } 750 751 last_lcore_id = get_last_lcore_id(); 752 main_lcore_id = rte_get_main_lcore(); 753 754 worker_args.ring_in = rx_to_workers; 755 worker_args.ring_out = workers_to_tx; 756 757 /* Start worker_thread() on all the available worker cores but the last 1 */ 758 for (lcore_id = 0; lcore_id <= get_previous_lcore_id(last_lcore_id); lcore_id++) 759 if (rte_lcore_is_enabled(lcore_id) && lcore_id != main_lcore_id) 760 rte_eal_remote_launch(worker_thread, (void *)&worker_args, 761 lcore_id); 762 763 if (disable_reorder) { 764 /* Start tx_thread() on the last worker core */ 765 rte_eal_remote_launch((lcore_function_t *)tx_thread, workers_to_tx, 766 last_lcore_id); 767 } else { 768 send_args.ring_in = workers_to_tx; 769 /* Start send_thread() on the last worker core */ 770 rte_eal_remote_launch((lcore_function_t *)send_thread, 771 (void *)&send_args, last_lcore_id); 772 } 773 774 /* Start rx_thread() on the main core */ 775 rx_thread(rx_to_workers); 776 777 RTE_LCORE_FOREACH_WORKER(lcore_id) { 778 if (rte_eal_wait_lcore(lcore_id) < 0) 779 return -1; 780 } 781 782 print_stats(); 783 784 /* clean up the EAL */ 785 rte_eal_cleanup(); 786 787 return 0; 788 } 789