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