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 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, 280 "Cannot set error callback for tx buffer on port %u\n", 281 port_id); 282 } 283 return 0; 284 } 285 286 static inline int 287 configure_eth_port(uint16_t port_id) 288 { 289 struct ether_addr addr; 290 const uint16_t rxRings = 1, txRings = 1; 291 const uint8_t nb_ports = rte_eth_dev_count(); 292 int ret; 293 uint16_t q; 294 uint16_t nb_rxd = RX_DESC_PER_QUEUE; 295 uint16_t nb_txd = TX_DESC_PER_QUEUE; 296 297 if (port_id > nb_ports) 298 return -1; 299 300 ret = rte_eth_dev_configure(port_id, rxRings, txRings, &port_conf_default); 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 for (q = 0; q < txRings; q++) { 317 ret = rte_eth_tx_queue_setup(port_id, q, nb_txd, 318 rte_eth_dev_socket_id(port_id), NULL); 319 if (ret < 0) 320 return ret; 321 } 322 323 ret = rte_eth_dev_start(port_id); 324 if (ret < 0) 325 return ret; 326 327 rte_eth_macaddr_get(port_id, &addr); 328 printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8 329 " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n", 330 port_id, 331 addr.addr_bytes[0], addr.addr_bytes[1], 332 addr.addr_bytes[2], addr.addr_bytes[3], 333 addr.addr_bytes[4], addr.addr_bytes[5]); 334 335 rte_eth_promiscuous_enable(port_id); 336 337 return 0; 338 } 339 340 static void 341 print_stats(void) 342 { 343 const uint8_t nb_ports = rte_eth_dev_count(); 344 unsigned i; 345 struct rte_eth_stats eth_stats; 346 347 printf("\nRX thread stats:\n"); 348 printf(" - Pkts rxd: %"PRIu64"\n", 349 app_stats.rx.rx_pkts); 350 printf(" - Pkts enqd to workers ring: %"PRIu64"\n", 351 app_stats.rx.enqueue_pkts); 352 353 printf("\nWorker thread stats:\n"); 354 printf(" - Pkts deqd from workers ring: %"PRIu64"\n", 355 app_stats.wkr.dequeue_pkts); 356 printf(" - Pkts enqd to tx ring: %"PRIu64"\n", 357 app_stats.wkr.enqueue_pkts); 358 printf(" - Pkts enq to tx failed: %"PRIu64"\n", 359 app_stats.wkr.enqueue_failed_pkts); 360 361 printf("\nTX stats:\n"); 362 printf(" - Pkts deqd from tx ring: %"PRIu64"\n", 363 app_stats.tx.dequeue_pkts); 364 printf(" - Ro Pkts transmitted: %"PRIu64"\n", 365 app_stats.tx.ro_tx_pkts); 366 printf(" - Ro Pkts tx failed: %"PRIu64"\n", 367 app_stats.tx.ro_tx_failed_pkts); 368 printf(" - Pkts transmitted w/o reorder: %"PRIu64"\n", 369 app_stats.tx.early_pkts_txtd_woro); 370 printf(" - Pkts tx failed w/o reorder: %"PRIu64"\n", 371 app_stats.tx.early_pkts_tx_failed_woro); 372 373 for (i = 0; i < nb_ports; i++) { 374 rte_eth_stats_get(i, ð_stats); 375 printf("\nPort %u stats:\n", i); 376 printf(" - Pkts in: %"PRIu64"\n", eth_stats.ipackets); 377 printf(" - Pkts out: %"PRIu64"\n", eth_stats.opackets); 378 printf(" - In Errs: %"PRIu64"\n", eth_stats.ierrors); 379 printf(" - Out Errs: %"PRIu64"\n", eth_stats.oerrors); 380 printf(" - Mbuf Errs: %"PRIu64"\n", eth_stats.rx_nombuf); 381 } 382 } 383 384 static void 385 int_handler(int sig_num) 386 { 387 printf("Exiting on signal %d\n", sig_num); 388 quit_signal = 1; 389 } 390 391 /** 392 * This thread receives mbufs from the port and affects them an internal 393 * sequence number to keep track of their order of arrival through an 394 * mbuf structure. 395 * The mbufs are then passed to the worker threads via the rx_to_workers 396 * ring. 397 */ 398 static int 399 rx_thread(struct rte_ring *ring_out) 400 { 401 const uint8_t nb_ports = rte_eth_dev_count(); 402 uint32_t seqn = 0; 403 uint16_t i, ret = 0; 404 uint16_t nb_rx_pkts; 405 uint16_t port_id; 406 struct rte_mbuf *pkts[MAX_PKTS_BURST]; 407 408 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 409 rte_lcore_id()); 410 411 while (!quit_signal) { 412 413 for (port_id = 0; port_id < nb_ports; port_id++) { 414 if ((portmask & (1 << port_id)) != 0) { 415 416 /* receive packets */ 417 nb_rx_pkts = rte_eth_rx_burst(port_id, 0, 418 pkts, MAX_PKTS_BURST); 419 if (nb_rx_pkts == 0) { 420 RTE_LOG_DP(DEBUG, REORDERAPP, 421 "%s():Received zero packets\n", __func__); 422 continue; 423 } 424 app_stats.rx.rx_pkts += nb_rx_pkts; 425 426 /* mark sequence number */ 427 for (i = 0; i < nb_rx_pkts; ) 428 pkts[i++]->seqn = seqn++; 429 430 /* enqueue to rx_to_workers ring */ 431 ret = rte_ring_enqueue_burst(ring_out, 432 (void *)pkts, nb_rx_pkts, NULL); 433 app_stats.rx.enqueue_pkts += ret; 434 if (unlikely(ret < nb_rx_pkts)) { 435 app_stats.rx.enqueue_failed_pkts += 436 (nb_rx_pkts-ret); 437 pktmbuf_free_bulk(&pkts[ret], nb_rx_pkts - ret); 438 } 439 } 440 } 441 } 442 return 0; 443 } 444 445 /** 446 * This thread takes bursts of packets from the rx_to_workers ring and 447 * Changes the input port value to output port value. And feds it to 448 * workers_to_tx 449 */ 450 static int 451 worker_thread(void *args_ptr) 452 { 453 const uint8_t nb_ports = rte_eth_dev_count(); 454 uint16_t i, ret = 0; 455 uint16_t burst_size = 0; 456 struct worker_thread_args *args; 457 struct rte_mbuf *burst_buffer[MAX_PKTS_BURST] = { NULL }; 458 struct rte_ring *ring_in, *ring_out; 459 const unsigned xor_val = (nb_ports > 1); 460 461 args = (struct worker_thread_args *) args_ptr; 462 ring_in = args->ring_in; 463 ring_out = args->ring_out; 464 465 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 466 rte_lcore_id()); 467 468 while (!quit_signal) { 469 470 /* dequeue the mbufs from rx_to_workers ring */ 471 burst_size = rte_ring_dequeue_burst(ring_in, 472 (void *)burst_buffer, MAX_PKTS_BURST, NULL); 473 if (unlikely(burst_size == 0)) 474 continue; 475 476 __sync_fetch_and_add(&app_stats.wkr.dequeue_pkts, burst_size); 477 478 /* just do some operation on mbuf */ 479 for (i = 0; i < burst_size;) 480 burst_buffer[i++]->port ^= xor_val; 481 482 /* enqueue the modified mbufs to workers_to_tx ring */ 483 ret = rte_ring_enqueue_burst(ring_out, (void *)burst_buffer, 484 burst_size, NULL); 485 __sync_fetch_and_add(&app_stats.wkr.enqueue_pkts, ret); 486 if (unlikely(ret < burst_size)) { 487 /* Return the mbufs to their respective pool, dropping packets */ 488 __sync_fetch_and_add(&app_stats.wkr.enqueue_failed_pkts, 489 (int)burst_size - ret); 490 pktmbuf_free_bulk(&burst_buffer[ret], burst_size - ret); 491 } 492 } 493 return 0; 494 } 495 496 /** 497 * Dequeue mbufs from the workers_to_tx ring and reorder them before 498 * transmitting. 499 */ 500 static int 501 send_thread(struct send_thread_args *args) 502 { 503 int ret; 504 unsigned int i, dret; 505 uint16_t nb_dq_mbufs; 506 uint8_t outp; 507 unsigned sent; 508 struct rte_mbuf *mbufs[MAX_PKTS_BURST]; 509 struct rte_mbuf *rombufs[MAX_PKTS_BURST] = {NULL}; 510 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 511 512 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, rte_lcore_id()); 513 514 configure_tx_buffers(tx_buffer); 515 516 while (!quit_signal) { 517 518 /* deque the mbufs from workers_to_tx ring */ 519 nb_dq_mbufs = rte_ring_dequeue_burst(args->ring_in, 520 (void *)mbufs, MAX_PKTS_BURST, NULL); 521 522 if (unlikely(nb_dq_mbufs == 0)) 523 continue; 524 525 app_stats.tx.dequeue_pkts += nb_dq_mbufs; 526 527 for (i = 0; i < nb_dq_mbufs; i++) { 528 /* send dequeued mbufs for reordering */ 529 ret = rte_reorder_insert(args->buffer, mbufs[i]); 530 531 if (ret == -1 && rte_errno == ERANGE) { 532 /* Too early pkts should be transmitted out directly */ 533 RTE_LOG_DP(DEBUG, REORDERAPP, 534 "%s():Cannot reorder early packet " 535 "direct enqueuing to TX\n", __func__); 536 outp = mbufs[i]->port; 537 if ((portmask & (1 << outp)) == 0) { 538 rte_pktmbuf_free(mbufs[i]); 539 continue; 540 } 541 if (rte_eth_tx_burst(outp, 0, (void *)mbufs[i], 1) != 1) { 542 rte_pktmbuf_free(mbufs[i]); 543 app_stats.tx.early_pkts_tx_failed_woro++; 544 } else 545 app_stats.tx.early_pkts_txtd_woro++; 546 } else if (ret == -1 && rte_errno == ENOSPC) { 547 /** 548 * Early pkts just outside of window should be dropped 549 */ 550 rte_pktmbuf_free(mbufs[i]); 551 } 552 } 553 554 /* 555 * drain MAX_PKTS_BURST of reordered 556 * mbufs for transmit 557 */ 558 dret = rte_reorder_drain(args->buffer, rombufs, MAX_PKTS_BURST); 559 for (i = 0; i < dret; i++) { 560 561 struct rte_eth_dev_tx_buffer *outbuf; 562 uint8_t outp1; 563 564 outp1 = rombufs[i]->port; 565 /* skip ports that are not enabled */ 566 if ((portmask & (1 << outp1)) == 0) { 567 rte_pktmbuf_free(rombufs[i]); 568 continue; 569 } 570 571 outbuf = tx_buffer[outp1]; 572 sent = rte_eth_tx_buffer(outp1, 0, outbuf, rombufs[i]); 573 if (sent) 574 app_stats.tx.ro_tx_pkts += sent; 575 } 576 } 577 578 free_tx_buffers(tx_buffer); 579 580 return 0; 581 } 582 583 /** 584 * Dequeue mbufs from the workers_to_tx ring and transmit them 585 */ 586 static int 587 tx_thread(struct rte_ring *ring_in) 588 { 589 uint32_t i, dqnum; 590 uint8_t outp; 591 unsigned sent; 592 struct rte_mbuf *mbufs[MAX_PKTS_BURST]; 593 struct rte_eth_dev_tx_buffer *outbuf; 594 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 595 596 RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, 597 rte_lcore_id()); 598 599 configure_tx_buffers(tx_buffer); 600 601 while (!quit_signal) { 602 603 /* deque the mbufs from workers_to_tx ring */ 604 dqnum = rte_ring_dequeue_burst(ring_in, 605 (void *)mbufs, MAX_PKTS_BURST, NULL); 606 607 if (unlikely(dqnum == 0)) 608 continue; 609 610 app_stats.tx.dequeue_pkts += dqnum; 611 612 for (i = 0; i < dqnum; i++) { 613 outp = mbufs[i]->port; 614 /* skip ports that are not enabled */ 615 if ((portmask & (1 << outp)) == 0) { 616 rte_pktmbuf_free(mbufs[i]); 617 continue; 618 } 619 620 outbuf = tx_buffer[outp]; 621 sent = rte_eth_tx_buffer(outp, 0, outbuf, mbufs[i]); 622 if (sent) 623 app_stats.tx.ro_tx_pkts += sent; 624 } 625 } 626 627 return 0; 628 } 629 630 int 631 main(int argc, char **argv) 632 { 633 int ret; 634 unsigned nb_ports; 635 unsigned int lcore_id, last_lcore_id, master_lcore_id; 636 uint16_t port_id; 637 uint16_t nb_ports_available; 638 struct worker_thread_args worker_args = {NULL, NULL}; 639 struct send_thread_args send_args = {NULL, NULL}; 640 struct rte_ring *rx_to_workers; 641 struct rte_ring *workers_to_tx; 642 643 /* catch ctrl-c so we can print on exit */ 644 signal(SIGINT, int_handler); 645 646 /* Initialize EAL */ 647 ret = rte_eal_init(argc, argv); 648 if (ret < 0) 649 return -1; 650 651 argc -= ret; 652 argv += ret; 653 654 /* Parse the application specific arguments */ 655 ret = parse_args(argc, argv); 656 if (ret < 0) 657 return -1; 658 659 /* Check if we have enought cores */ 660 if (rte_lcore_count() < 3) 661 rte_exit(EXIT_FAILURE, "Error, This application needs at " 662 "least 3 logical cores to run:\n" 663 "1 lcore for packet RX\n" 664 "1 lcore for packet TX\n" 665 "and at least 1 lcore for worker threads\n"); 666 667 nb_ports = rte_eth_dev_count(); 668 if (nb_ports == 0) 669 rte_exit(EXIT_FAILURE, "Error: no ethernet ports detected\n"); 670 if (nb_ports != 1 && (nb_ports & 1)) 671 rte_exit(EXIT_FAILURE, "Error: number of ports must be even, except " 672 "when using a single port\n"); 673 674 mbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", MBUF_PER_POOL, 675 MBUF_POOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, 676 rte_socket_id()); 677 if (mbuf_pool == NULL) 678 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 679 680 nb_ports_available = nb_ports; 681 682 /* initialize all ports */ 683 for (port_id = 0; port_id < nb_ports; port_id++) { 684 /* skip ports that are not enabled */ 685 if ((portmask & (1 << port_id)) == 0) { 686 printf("\nSkipping disabled port %d\n", port_id); 687 nb_ports_available--; 688 continue; 689 } 690 /* init port */ 691 printf("Initializing port %u... done\n", port_id); 692 693 if (configure_eth_port(port_id) != 0) 694 rte_exit(EXIT_FAILURE, "Cannot initialize port %"PRIu8"\n", 695 port_id); 696 } 697 698 if (!nb_ports_available) { 699 rte_exit(EXIT_FAILURE, 700 "All available ports are disabled. Please set portmask.\n"); 701 } 702 703 /* Create rings for inter core communication */ 704 rx_to_workers = rte_ring_create("rx_to_workers", RING_SIZE, rte_socket_id(), 705 RING_F_SP_ENQ); 706 if (rx_to_workers == NULL) 707 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 708 709 workers_to_tx = rte_ring_create("workers_to_tx", RING_SIZE, rte_socket_id(), 710 RING_F_SC_DEQ); 711 if (workers_to_tx == NULL) 712 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 713 714 if (!disable_reorder) { 715 send_args.buffer = rte_reorder_create("PKT_RO", rte_socket_id(), 716 REORDER_BUFFER_SIZE); 717 if (send_args.buffer == NULL) 718 rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno)); 719 } 720 721 last_lcore_id = get_last_lcore_id(); 722 master_lcore_id = rte_get_master_lcore(); 723 724 worker_args.ring_in = rx_to_workers; 725 worker_args.ring_out = workers_to_tx; 726 727 /* Start worker_thread() on all the available slave cores but the last 1 */ 728 for (lcore_id = 0; lcore_id <= get_previous_lcore_id(last_lcore_id); lcore_id++) 729 if (rte_lcore_is_enabled(lcore_id) && lcore_id != master_lcore_id) 730 rte_eal_remote_launch(worker_thread, (void *)&worker_args, 731 lcore_id); 732 733 if (disable_reorder) { 734 /* Start tx_thread() on the last slave core */ 735 rte_eal_remote_launch((lcore_function_t *)tx_thread, workers_to_tx, 736 last_lcore_id); 737 } else { 738 send_args.ring_in = workers_to_tx; 739 /* Start send_thread() on the last slave core */ 740 rte_eal_remote_launch((lcore_function_t *)send_thread, 741 (void *)&send_args, last_lcore_id); 742 } 743 744 /* Start rx_thread() on the master core */ 745 rx_thread(rx_to_workers); 746 747 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 748 if (rte_eal_wait_lcore(lcore_id) < 0) 749 return -1; 750 } 751 752 print_stats(); 753 return 0; 754 } 755