1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <signal.h> 35 #include <getopt.h> 36 37 #include <rte_eal.h> 38 #include <rte_common.h> 39 #include <rte_errno.h> 40 #include <rte_ethdev.h> 41 #include <rte_lcore.h> 42 #include <rte_mbuf.h> 43 #include <rte_mempool.h> 44 #include <rte_ring.h> 45 #include <rte_reorder.h> 46 47 #define RX_DESC_PER_QUEUE 128 48 #define TX_DESC_PER_QUEUE 512 49 50 #define MAX_PKTS_BURST 32 51 #define REORDER_BUFFER_SIZE 8192 52 #define MBUF_PER_POOL 65535 53 #define MBUF_SIZE (1600 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM) 54 #define MBUF_POOL_CACHE_SIZE 250 55 56 #define RING_SIZE 16384 57 58 /* uncommnet below line to enable debug logs */ 59 /* #define DEBUG */ 60 61 #ifdef DEBUG 62 #define LOG_LEVEL RTE_LOG_DEBUG 63 #define LOG_DEBUG(log_type, fmt, args...) RTE_LOG(DEBUG, log_type, fmt, ##args) 64 #else 65 #define LOG_LEVEL RTE_LOG_INFO 66 #define LOG_DEBUG(log_type, fmt, args...) do {} while (0) 67 #endif 68 69 /* Macros for printing using RTE_LOG */ 70 #define RTE_LOGTYPE_REORDERAPP RTE_LOGTYPE_USER1 71 72 unsigned int portmask; 73 unsigned int disable_reorder; 74 volatile uint8_t quit_signal; 75 76 static struct rte_mempool *mbuf_pool; 77 78 static struct rte_eth_conf port_conf_default; 79 80 struct worker_thread_args { 81 struct rte_ring *ring_in; 82 struct rte_ring *ring_out; 83 }; 84 85 struct output_buffer { 86 unsigned count; 87 struct rte_mbuf *mbufs[MAX_PKTS_BURST]; 88 }; 89 90 volatile struct app_stats { 91 struct { 92 uint64_t rx_pkts; 93 uint64_t enqueue_pkts; 94 uint64_t enqueue_failed_pkts; 95 } rx __rte_cache_aligned; 96 97 struct { 98 uint64_t dequeue_pkts; 99 uint64_t enqueue_pkts; 100 uint64_t enqueue_failed_pkts; 101 } wkr __rte_cache_aligned; 102 103 struct { 104 uint64_t dequeue_pkts; 105 /* Too early pkts transmitted directly w/o reordering */ 106 uint64_t early_pkts_txtd_woro; 107 /* Too early pkts failed from direct transmit */ 108 uint64_t early_pkts_tx_failed_woro; 109 uint64_t ro_tx_pkts; 110 uint64_t ro_tx_failed_pkts; 111 } tx __rte_cache_aligned; 112 } app_stats; 113 114 /** 115 * Get the last enabled lcore ID 116 * 117 * @return 118 * The last enabled lcore ID. 119 */ 120 static unsigned int 121 get_last_lcore_id(void) 122 { 123 int i; 124 125 for (i = RTE_MAX_LCORE - 1; i >= 0; i--) 126 if (rte_lcore_is_enabled(i)) 127 return i; 128 return 0; 129 } 130 131 /** 132 * Get the previous enabled lcore ID 133 * @param id 134 * The current lcore ID 135 * @return 136 * The previous enabled lcore ID or the current lcore 137 * ID if it is the first available core. 138 */ 139 static unsigned int 140 get_previous_lcore_id(unsigned int id) 141 { 142 int i; 143 144 for (i = id - 1; i >= 0; i--) 145 if (rte_lcore_is_enabled(i)) 146 return i; 147 return id; 148 } 149 150 static inline void 151 pktmbuf_free_bulk(struct rte_mbuf *mbuf_table[], unsigned n) 152 { 153 unsigned int i; 154 155 for (i = 0; i < n; i++) 156 rte_pktmbuf_free(mbuf_table[i]); 157 } 158 159 /* display usage */ 160 static void 161 print_usage(const char *prgname) 162 { 163 printf("%s [EAL options] -- -p PORTMASK\n" 164 " -p PORTMASK: hexadecimal bitmask of ports to configure\n", 165 prgname); 166 } 167 168 static int 169 parse_portmask(const char *portmask) 170 { 171 unsigned long pm; 172 char *end = NULL; 173 174 /* parse hexadecimal string */ 175 pm = strtoul(portmask, &end, 16); 176 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 177 return -1; 178 179 if (pm == 0) 180 return -1; 181 182 return pm; 183 } 184 185 /* Parse the argument given in the command line of the application */ 186 static int 187 parse_args(int argc, char **argv) 188 { 189 int opt; 190 int option_index; 191 char **argvopt; 192 char *prgname = argv[0]; 193 static struct option lgopts[] = { 194 {"disable-reorder", 0, 0, 0}, 195 {NULL, 0, 0, 0} 196 }; 197 198 argvopt = argv; 199 200 while ((opt = getopt_long(argc, argvopt, "p:", 201 lgopts, &option_index)) != EOF) { 202 switch (opt) { 203 /* portmask */ 204 case 'p': 205 portmask = parse_portmask(optarg); 206 if (portmask == 0) { 207 printf("invalid portmask\n"); 208 print_usage(prgname); 209 return -1; 210 } 211 break; 212 /* long options */ 213 case 0: 214 if (!strcmp(lgopts[option_index].name, "disable-reorder")) { 215 printf("reorder disabled\n"); 216 disable_reorder = 1; 217 } 218 break; 219 default: 220 print_usage(prgname); 221 return -1; 222 } 223 } 224 if (optind <= 1) { 225 print_usage(prgname); 226 return -1; 227 } 228 229 argv[optind-1] = prgname; 230 optind = 0; /* reset getopt lib */ 231 return 0; 232 } 233 234 static inline int 235 configure_eth_port(uint8_t port_id) 236 { 237 struct ether_addr addr; 238 const uint16_t rxRings = 1, txRings = 1; 239 const uint8_t nb_ports = rte_eth_dev_count(); 240 int ret; 241 uint16_t q; 242 243 if (port_id > nb_ports) 244 return -1; 245 246 ret = rte_eth_dev_configure(port_id, rxRings, txRings, &port_conf_default); 247 if (ret != 0) 248 return ret; 249 250 for (q = 0; q < rxRings; q++) { 251 ret = rte_eth_rx_queue_setup(port_id, q, RX_DESC_PER_QUEUE, 252 rte_eth_dev_socket_id(port_id), NULL, 253 mbuf_pool); 254 if (ret < 0) 255 return ret; 256 } 257 258 for (q = 0; q < txRings; q++) { 259 ret = rte_eth_tx_queue_setup(port_id, q, TX_DESC_PER_QUEUE, 260 rte_eth_dev_socket_id(port_id), NULL); 261 if (ret < 0) 262 return ret; 263 } 264 265 ret = rte_eth_dev_start(port_id); 266 if (ret < 0) 267 return ret; 268 269 rte_eth_macaddr_get(port_id, &addr); 270 printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8 271 " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n", 272 (unsigned)port_id, 273 addr.addr_bytes[0], addr.addr_bytes[1], 274 addr.addr_bytes[2], addr.addr_bytes[3], 275 addr.addr_bytes[4], addr.addr_bytes[5]); 276 277 rte_eth_promiscuous_enable(port_id); 278 279 return 0; 280 } 281 282 static void 283 print_stats(void) 284 { 285 const uint8_t nb_ports = rte_eth_dev_count(); 286 unsigned i; 287 struct rte_eth_stats eth_stats; 288 289 printf("\nRX thread stats:\n"); 290 printf(" - Pkts rxd: %"PRIu64"\n", 291 app_stats.rx.rx_pkts); 292 printf(" - Pkts enqd to workers ring: %"PRIu64"\n", 293 app_stats.rx.enqueue_pkts); 294 295 printf("\nWorker thread stats:\n"); 296 printf(" - Pkts deqd from workers ring: %"PRIu64"\n", 297 app_stats.wkr.dequeue_pkts); 298 printf(" - Pkts enqd to tx ring: %"PRIu64"\n", 299 app_stats.wkr.enqueue_pkts); 300 printf(" - Pkts enq to tx failed: %"PRIu64"\n", 301 app_stats.wkr.enqueue_failed_pkts); 302 303 printf("\nTX stats:\n"); 304 printf(" - Pkts deqd from tx ring: %"PRIu64"\n", 305 app_stats.tx.dequeue_pkts); 306 printf(" - Ro Pkts transmitted: %"PRIu64"\n", 307 app_stats.tx.ro_tx_pkts); 308 printf(" - Ro Pkts tx failed: %"PRIu64"\n", 309 app_stats.tx.ro_tx_failed_pkts); 310 printf(" - Pkts transmitted w/o reorder: %"PRIu64"\n", 311 app_stats.tx.early_pkts_txtd_woro); 312 printf(" - Pkts tx failed w/o reorder: %"PRIu64"\n", 313 app_stats.tx.early_pkts_tx_failed_woro); 314 315 for (i = 0; i < nb_ports; i++) { 316 rte_eth_stats_get(i, ð_stats); 317 printf("\nPort %u stats:\n", i); 318 printf(" - Pkts in: %"PRIu64"\n", eth_stats.ipackets); 319 printf(" - Pkts out: %"PRIu64"\n", eth_stats.opackets); 320 printf(" - In Errs: %"PRIu64"\n", eth_stats.ierrors); 321 printf(" - Out Errs: %"PRIu64"\n", eth_stats.oerrors); 322 printf(" - Mbuf Errs: %"PRIu64"\n", eth_stats.rx_nombuf); 323 } 324 } 325 326 static void 327 int_handler(int sig_num) 328 { 329 printf("Exiting on signal %d\n", sig_num); 330 quit_signal = 1; 331 } 332 333 /** 334 * This thread receives mbufs from the port and affects them an internal 335 * sequence number to keep track of their order of arrival through an 336 * mbuf structure. 337 * The mbufs are then passed to the worker threads via the rx_to_workers 338 * ring. 339 */ 340 static int 341 rx_thread(struct rte_ring *ring_out) 342 { 343 const uint8_t nb_ports = rte_eth_dev_count(); 344 uint32_t seqn = 0; 345 uint16_t i, ret = 0; 346 uint16_t nb_rx_pkts; 347 uint8_t port_id; 348 struct rte_mbuf *pkts[MAX_PKTS_BURST]; 349 350 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 351 rte_lcore_id()); 352 353 while (!quit_signal) { 354 355 for (port_id = 0; port_id < nb_ports; port_id++) { 356 if ((portmask & (1 << port_id)) != 0) { 357 358 /* receive packets */ 359 nb_rx_pkts = rte_eth_rx_burst(port_id, 0, 360 pkts, MAX_PKTS_BURST); 361 if (nb_rx_pkts == 0) { 362 LOG_DEBUG(REORDERAPP, 363 "%s():Received zero packets\n", __func__); 364 continue; 365 } 366 app_stats.rx.rx_pkts += nb_rx_pkts; 367 368 /* mark sequence number */ 369 for (i = 0; i < nb_rx_pkts; ) 370 pkts[i++]->seqn = seqn++; 371 372 /* enqueue to rx_to_workers ring */ 373 ret = rte_ring_enqueue_burst(ring_out, (void *) pkts, 374 nb_rx_pkts); 375 app_stats.rx.enqueue_pkts += ret; 376 if (unlikely(ret < nb_rx_pkts)) { 377 app_stats.rx.enqueue_failed_pkts += 378 (nb_rx_pkts-ret); 379 pktmbuf_free_bulk(&pkts[ret], nb_rx_pkts - ret); 380 } 381 } 382 } 383 } 384 return 0; 385 } 386 387 /** 388 * This thread takes bursts of packets from the rx_to_workers ring and 389 * Changes the input port value to output port value. And feds it to 390 * workers_to_tx 391 */ 392 static int 393 worker_thread(void *args_ptr) 394 { 395 const uint8_t nb_ports = rte_eth_dev_count(); 396 uint16_t i, ret = 0; 397 uint16_t burst_size = 0; 398 struct worker_thread_args *args; 399 struct rte_mbuf *burst_buffer[MAX_PKTS_BURST] = { NULL }; 400 struct rte_ring *ring_in, *ring_out; 401 const unsigned xor_val = (nb_ports > 1); 402 403 args = (struct worker_thread_args *) args_ptr; 404 ring_in = args->ring_in; 405 ring_out = args->ring_out; 406 407 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 408 rte_lcore_id()); 409 410 while (!quit_signal) { 411 412 /* dequeue the mbufs from rx_to_workers ring */ 413 burst_size = rte_ring_dequeue_burst(ring_in, 414 (void *)burst_buffer, MAX_PKTS_BURST); 415 if (unlikely(burst_size == 0)) 416 continue; 417 418 __sync_fetch_and_add(&app_stats.wkr.dequeue_pkts, burst_size); 419 420 /* just do some operation on mbuf */ 421 for (i = 0; i < burst_size;) 422 burst_buffer[i++]->port ^= xor_val; 423 424 /* enqueue the modified mbufs to workers_to_tx ring */ 425 ret = rte_ring_enqueue_burst(ring_out, (void *)burst_buffer, burst_size); 426 __sync_fetch_and_add(&app_stats.wkr.enqueue_pkts, ret); 427 if (unlikely(ret < burst_size)) { 428 /* Return the mbufs to their respective pool, dropping packets */ 429 __sync_fetch_and_add(&app_stats.wkr.enqueue_failed_pkts, 430 (int)burst_size - ret); 431 pktmbuf_free_bulk(&burst_buffer[ret], burst_size - ret); 432 } 433 } 434 return 0; 435 } 436 437 static inline void 438 flush_one_port(struct output_buffer *outbuf, uint8_t outp) 439 { 440 unsigned nb_tx = rte_eth_tx_burst(outp, 0, outbuf->mbufs, 441 outbuf->count); 442 app_stats.tx.ro_tx_pkts += nb_tx; 443 444 if (unlikely(nb_tx < outbuf->count)) { 445 /* free the mbufs which failed from transmit */ 446 app_stats.tx.ro_tx_failed_pkts += (outbuf->count - nb_tx); 447 LOG_DEBUG(REORDERAPP, "%s:Packet loss with tx_burst\n", __func__); 448 pktmbuf_free_bulk(&outbuf->mbufs[nb_tx], outbuf->count - nb_tx); 449 } 450 outbuf->count = 0; 451 } 452 453 /** 454 * Dequeue mbufs from the workers_to_tx ring and reorder them before 455 * transmitting. 456 */ 457 static int 458 send_thread(struct rte_ring *ring_in) 459 { 460 int ret; 461 unsigned int i, dret; 462 uint16_t nb_dq_mbufs; 463 uint8_t outp; 464 static struct output_buffer tx_buffers[RTE_MAX_ETHPORTS]; 465 struct rte_mbuf *mbufs[MAX_PKTS_BURST]; 466 struct rte_mbuf *rombufs[MAX_PKTS_BURST] = {NULL}; 467 struct rte_reorder_buffer *buffer; 468 469 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 470 rte_lcore_id()); 471 buffer = rte_reorder_create("PKT_RO", rte_socket_id(), REORDER_BUFFER_SIZE); 472 while (!quit_signal) { 473 474 /* deque the mbufs from workers_to_tx ring */ 475 nb_dq_mbufs = rte_ring_dequeue_burst(ring_in, 476 (void *)mbufs, MAX_PKTS_BURST); 477 478 if (unlikely(nb_dq_mbufs == 0)) 479 continue; 480 481 app_stats.tx.dequeue_pkts += nb_dq_mbufs; 482 483 for (i = 0; i < nb_dq_mbufs; i++) { 484 /* send dequeued mbufs for reordering */ 485 ret = rte_reorder_insert(buffer, mbufs[i]); 486 487 if (ret == -1 && rte_errno == ERANGE) { 488 /* Too early pkts should be transmitted out directly */ 489 LOG_DEBUG(REORDERAPP, "%s():Cannot reorder early packet " 490 "direct enqueuing to TX\n", __func__); 491 outp = mbufs[i]->port; 492 if ((portmask & (1 << outp)) == 0) { 493 rte_pktmbuf_free(mbufs[i]); 494 continue; 495 } 496 if (rte_eth_tx_burst(outp, 0, (void *)mbufs[i], 1) != 1) { 497 rte_pktmbuf_free(mbufs[i]); 498 app_stats.tx.early_pkts_tx_failed_woro++; 499 } else 500 app_stats.tx.early_pkts_txtd_woro++; 501 } else if (ret == -1 && rte_errno == ENOSPC) { 502 /** 503 * Early pkts just outside of window should be dropped 504 */ 505 rte_pktmbuf_free(mbufs[i]); 506 } 507 } 508 509 /* 510 * drain MAX_PKTS_BURST of reordered 511 * mbufs for transmit 512 */ 513 dret = rte_reorder_drain(buffer, rombufs, MAX_PKTS_BURST); 514 for (i = 0; i < dret; i++) { 515 516 struct output_buffer *outbuf; 517 uint8_t outp1; 518 519 outp1 = rombufs[i]->port; 520 /* skip ports that are not enabled */ 521 if ((portmask & (1 << outp1)) == 0) { 522 rte_pktmbuf_free(rombufs[i]); 523 continue; 524 } 525 526 outbuf = &tx_buffers[outp1]; 527 outbuf->mbufs[outbuf->count++] = rombufs[i]; 528 if (outbuf->count == MAX_PKTS_BURST) 529 flush_one_port(outbuf, outp1); 530 } 531 } 532 return 0; 533 } 534 535 /** 536 * Dequeue mbufs from the workers_to_tx ring and transmit them 537 */ 538 static int 539 tx_thread(struct rte_ring *ring_in) 540 { 541 uint32_t i, dqnum; 542 uint8_t outp; 543 static struct output_buffer tx_buffers[RTE_MAX_ETHPORTS]; 544 struct rte_mbuf *mbufs[MAX_PKTS_BURST]; 545 struct output_buffer *outbuf; 546 547 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 548 rte_lcore_id()); 549 while (!quit_signal) { 550 551 /* deque the mbufs from workers_to_tx ring */ 552 dqnum = rte_ring_dequeue_burst(ring_in, 553 (void *)mbufs, MAX_PKTS_BURST); 554 555 if (unlikely(dqnum == 0)) 556 continue; 557 558 app_stats.tx.dequeue_pkts += dqnum; 559 560 for (i = 0; i < dqnum; i++) { 561 outp = mbufs[i]->port; 562 /* skip ports that are not enabled */ 563 if ((portmask & (1 << outp)) == 0) { 564 rte_pktmbuf_free(mbufs[i]); 565 continue; 566 } 567 568 outbuf = &tx_buffers[outp]; 569 outbuf->mbufs[outbuf->count++] = mbufs[i]; 570 if (outbuf->count == MAX_PKTS_BURST) 571 flush_one_port(outbuf, outp); 572 } 573 } 574 575 return 0; 576 } 577 578 int 579 main(int argc, char **argv) 580 { 581 int ret; 582 unsigned nb_ports; 583 unsigned int lcore_id, last_lcore_id, master_lcore_id; 584 uint8_t port_id; 585 uint8_t nb_ports_available; 586 struct worker_thread_args worker_args = {NULL, NULL}; 587 struct rte_ring *rx_to_workers; 588 struct rte_ring *workers_to_tx; 589 590 /* catch ctrl-c so we can print on exit */ 591 signal(SIGINT, int_handler); 592 593 /* Initialize EAL */ 594 ret = rte_eal_init(argc, argv); 595 if (ret < 0) 596 return -1; 597 598 argc -= ret; 599 argv += ret; 600 601 /* Parse the application specific arguments */ 602 ret = parse_args(argc, argv); 603 if (ret < 0) 604 return -1; 605 606 /* Check if we have enought cores */ 607 if (rte_lcore_count() < 3) 608 rte_exit(EXIT_FAILURE, "Error, This application needs at " 609 "least 3 logical cores to run:\n" 610 "1 lcore for packet RX\n" 611 "1 lcore for packet TX\n" 612 "and at least 1 lcore for worker threads\n"); 613 614 nb_ports = rte_eth_dev_count(); 615 if (nb_ports == 0) 616 rte_exit(EXIT_FAILURE, "Error: no ethernet ports detected\n"); 617 if (nb_ports != 1 && (nb_ports & 1)) 618 rte_exit(EXIT_FAILURE, "Error: number of ports must be even, except " 619 "when using a single port\n"); 620 621 mbuf_pool = rte_mempool_create("mbuf_pool", MBUF_PER_POOL, MBUF_SIZE, 622 MBUF_POOL_CACHE_SIZE, 623 sizeof(struct rte_pktmbuf_pool_private), 624 rte_pktmbuf_pool_init, NULL, 625 rte_pktmbuf_init, NULL, 626 rte_socket_id(), 0); 627 if (mbuf_pool == NULL) 628 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 629 630 nb_ports_available = nb_ports; 631 632 /* initialize all ports */ 633 for (port_id = 0; port_id < nb_ports; port_id++) { 634 /* skip ports that are not enabled */ 635 if ((portmask & (1 << port_id)) == 0) { 636 printf("\nSkipping disabled port %d\n", port_id); 637 nb_ports_available--; 638 continue; 639 } 640 /* init port */ 641 printf("Initializing port %u... done\n", (unsigned) port_id); 642 643 if (configure_eth_port(port_id) != 0) 644 rte_exit(EXIT_FAILURE, "Cannot initialize port %"PRIu8"\n", 645 port_id); 646 } 647 648 if (!nb_ports_available) { 649 rte_exit(EXIT_FAILURE, 650 "All available ports are disabled. Please set portmask.\n"); 651 } 652 653 /* Create rings for inter core communication */ 654 rx_to_workers = rte_ring_create("rx_to_workers", RING_SIZE, rte_socket_id(), 655 RING_F_SP_ENQ); 656 if (rx_to_workers == NULL) 657 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 658 659 workers_to_tx = rte_ring_create("workers_to_tx", RING_SIZE, rte_socket_id(), 660 RING_F_SC_DEQ); 661 if (workers_to_tx == NULL) 662 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 663 664 last_lcore_id = get_last_lcore_id(); 665 master_lcore_id = rte_get_master_lcore(); 666 667 worker_args.ring_in = rx_to_workers; 668 worker_args.ring_out = workers_to_tx; 669 670 /* Start worker_thread() on all the available slave cores but the last 1 */ 671 for (lcore_id = 0; lcore_id <= get_previous_lcore_id(last_lcore_id); lcore_id++) 672 if (rte_lcore_is_enabled(lcore_id) && lcore_id != master_lcore_id) 673 rte_eal_remote_launch(worker_thread, (void *)&worker_args, 674 lcore_id); 675 676 if (disable_reorder) 677 /* Start tx_thread() on the last slave core */ 678 rte_eal_remote_launch((lcore_function_t *)tx_thread, workers_to_tx, 679 last_lcore_id); 680 else 681 /* Start send_thread() on the last slave core */ 682 rte_eal_remote_launch((lcore_function_t *)send_thread, workers_to_tx, 683 last_lcore_id); 684 685 /* Start rx_thread() on the master core */ 686 rx_thread(rx_to_workers); 687 688 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 689 if (rte_eal_wait_lcore(lcore_id) < 0) 690 return -1; 691 } 692 693 print_stats(); 694 return 0; 695 } 696