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