1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2016 Intel Corporation 3 */ 4 5 #include <locale.h> 6 #include <stdlib.h> 7 #include <string.h> 8 #include <stdint.h> 9 #include <ctype.h> 10 #include <getopt.h> 11 12 #include <rte_common.h> 13 #include <rte_log.h> 14 #include <rte_malloc.h> 15 #include <rte_memory.h> 16 #include <rte_memcpy.h> 17 #include <rte_eal.h> 18 #include <rte_launch.h> 19 #include <rte_atomic.h> 20 #include <rte_cycles.h> 21 #include <rte_prefetch.h> 22 #include <rte_lcore.h> 23 #include <rte_per_lcore.h> 24 #include <rte_branch_prediction.h> 25 #include <rte_interrupts.h> 26 #include <rte_debug.h> 27 #include <rte_ether.h> 28 #include <rte_ethdev.h> 29 #include <rte_mempool.h> 30 #include <rte_mbuf.h> 31 #include <rte_spinlock.h> 32 33 #include <rte_errno.h> 34 #include <rte_jobstats.h> 35 #include <rte_timer.h> 36 #include <rte_alarm.h> 37 #include <rte_pause.h> 38 39 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1 40 41 #define NB_MBUF 8192 42 43 #define MAX_PKT_BURST 32 44 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ 45 46 /* 47 * Configurable number of RX/TX ring descriptors 48 */ 49 #define RTE_TEST_RX_DESC_DEFAULT 128 50 #define RTE_TEST_TX_DESC_DEFAULT 512 51 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 52 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; 53 54 /* ethernet addresses of ports */ 55 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS]; 56 57 /* mask of enabled ports */ 58 static uint32_t l2fwd_enabled_port_mask; 59 60 /* list of enabled ports */ 61 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS]; 62 63 #define UPDATE_STEP_UP 1 64 #define UPDATE_STEP_DOWN 32 65 66 static unsigned int l2fwd_rx_queue_per_lcore = 1; 67 68 #define MAX_RX_QUEUE_PER_LCORE 16 69 #define MAX_TX_QUEUE_PER_PORT 16 70 struct lcore_queue_conf { 71 unsigned n_rx_port; 72 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; 73 uint64_t next_flush_time[RTE_MAX_ETHPORTS]; 74 75 struct rte_timer rx_timers[MAX_RX_QUEUE_PER_LCORE]; 76 struct rte_jobstats port_fwd_jobs[MAX_RX_QUEUE_PER_LCORE]; 77 78 struct rte_timer flush_timer; 79 struct rte_jobstats flush_job; 80 struct rte_jobstats idle_job; 81 struct rte_jobstats_context jobs_context; 82 83 rte_atomic16_t stats_read_pending; 84 rte_spinlock_t lock; 85 } __rte_cache_aligned; 86 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; 87 88 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 89 90 static struct rte_eth_conf port_conf = { 91 .rxmode = { 92 .split_hdr_size = 0, 93 .ignore_offload_bitfield = 1, 94 .offloads = DEV_RX_OFFLOAD_CRC_STRIP, 95 }, 96 .txmode = { 97 .mq_mode = ETH_MQ_TX_NONE, 98 }, 99 }; 100 101 struct rte_mempool *l2fwd_pktmbuf_pool = NULL; 102 103 /* Per-port statistics struct */ 104 struct l2fwd_port_statistics { 105 uint64_t tx; 106 uint64_t rx; 107 uint64_t dropped; 108 } __rte_cache_aligned; 109 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS]; 110 111 /* 1 day max */ 112 #define MAX_TIMER_PERIOD 86400 113 /* default period is 10 seconds */ 114 static int64_t timer_period = 10; 115 /* default timer frequency */ 116 static double hz; 117 /* BURST_TX_DRAIN_US converted to cycles */ 118 uint64_t drain_tsc; 119 /* Convert cycles to ns */ 120 static inline double 121 cycles_to_ns(uint64_t cycles) 122 { 123 double t = cycles; 124 125 t *= (double)NS_PER_S; 126 t /= hz; 127 return t; 128 } 129 130 static void 131 show_lcore_stats(unsigned lcore_id) 132 { 133 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id]; 134 struct rte_jobstats_context *ctx = &qconf->jobs_context; 135 struct rte_jobstats *job; 136 uint8_t i; 137 138 /* LCore statistics. */ 139 uint64_t stats_period, loop_count; 140 uint64_t exec, exec_min, exec_max; 141 uint64_t management, management_min, management_max; 142 uint64_t busy, busy_min, busy_max; 143 144 /* Jobs statistics. */ 145 const uint16_t port_cnt = qconf->n_rx_port; 146 uint64_t jobs_exec_cnt[port_cnt], jobs_period[port_cnt]; 147 uint64_t jobs_exec[port_cnt], jobs_exec_min[port_cnt], 148 jobs_exec_max[port_cnt]; 149 150 uint64_t flush_exec_cnt, flush_period; 151 uint64_t flush_exec, flush_exec_min, flush_exec_max; 152 153 uint64_t idle_exec_cnt; 154 uint64_t idle_exec, idle_exec_min, idle_exec_max; 155 uint64_t collection_time = rte_get_timer_cycles(); 156 157 /* Ask forwarding thread to give us stats. */ 158 rte_atomic16_set(&qconf->stats_read_pending, 1); 159 rte_spinlock_lock(&qconf->lock); 160 rte_atomic16_set(&qconf->stats_read_pending, 0); 161 162 /* Collect context statistics. */ 163 stats_period = ctx->state_time - ctx->start_time; 164 loop_count = ctx->loop_cnt; 165 166 exec = ctx->exec_time; 167 exec_min = ctx->min_exec_time; 168 exec_max = ctx->max_exec_time; 169 170 management = ctx->management_time; 171 management_min = ctx->min_management_time; 172 management_max = ctx->max_management_time; 173 174 rte_jobstats_context_reset(ctx); 175 176 for (i = 0; i < port_cnt; i++) { 177 job = &qconf->port_fwd_jobs[i]; 178 179 jobs_exec_cnt[i] = job->exec_cnt; 180 jobs_period[i] = job->period; 181 182 jobs_exec[i] = job->exec_time; 183 jobs_exec_min[i] = job->min_exec_time; 184 jobs_exec_max[i] = job->max_exec_time; 185 186 rte_jobstats_reset(job); 187 } 188 189 flush_exec_cnt = qconf->flush_job.exec_cnt; 190 flush_period = qconf->flush_job.period; 191 flush_exec = qconf->flush_job.exec_time; 192 flush_exec_min = qconf->flush_job.min_exec_time; 193 flush_exec_max = qconf->flush_job.max_exec_time; 194 rte_jobstats_reset(&qconf->flush_job); 195 196 idle_exec_cnt = qconf->idle_job.exec_cnt; 197 idle_exec = qconf->idle_job.exec_time; 198 idle_exec_min = qconf->idle_job.min_exec_time; 199 idle_exec_max = qconf->idle_job.max_exec_time; 200 rte_jobstats_reset(&qconf->idle_job); 201 202 rte_spinlock_unlock(&qconf->lock); 203 204 exec -= idle_exec; 205 busy = exec + management; 206 busy_min = exec_min + management_min; 207 busy_max = exec_max + management_max; 208 209 210 collection_time = rte_get_timer_cycles() - collection_time; 211 212 #define STAT_FMT "\n%-18s %'14.0f %6.1f%% %'10.0f %'10.0f %'10.0f" 213 214 printf("\n----------------" 215 "\nLCore %3u: statistics (time in ns, collected in %'9.0f)" 216 "\n%-18s %14s %7s %10s %10s %10s " 217 "\n%-18s %'14.0f" 218 "\n%-18s %'14" PRIu64 219 STAT_FMT /* Exec */ 220 STAT_FMT /* Management */ 221 STAT_FMT /* Busy */ 222 STAT_FMT, /* Idle */ 223 lcore_id, cycles_to_ns(collection_time), 224 "Stat type", "total", "%total", "avg", "min", "max", 225 "Stats duration:", cycles_to_ns(stats_period), 226 "Loop count:", loop_count, 227 "Exec time", 228 cycles_to_ns(exec), exec * 100.0 / stats_period, 229 cycles_to_ns(loop_count ? exec / loop_count : 0), 230 cycles_to_ns(exec_min), 231 cycles_to_ns(exec_max), 232 "Management time", 233 cycles_to_ns(management), management * 100.0 / stats_period, 234 cycles_to_ns(loop_count ? management / loop_count : 0), 235 cycles_to_ns(management_min), 236 cycles_to_ns(management_max), 237 "Exec + management", 238 cycles_to_ns(busy), busy * 100.0 / stats_period, 239 cycles_to_ns(loop_count ? busy / loop_count : 0), 240 cycles_to_ns(busy_min), 241 cycles_to_ns(busy_max), 242 "Idle (job)", 243 cycles_to_ns(idle_exec), idle_exec * 100.0 / stats_period, 244 cycles_to_ns(idle_exec_cnt ? idle_exec / idle_exec_cnt : 0), 245 cycles_to_ns(idle_exec_min), 246 cycles_to_ns(idle_exec_max)); 247 248 for (i = 0; i < qconf->n_rx_port; i++) { 249 job = &qconf->port_fwd_jobs[i]; 250 printf("\n\nJob %" PRIu32 ": %-20s " 251 "\n%-18s %'14" PRIu64 252 "\n%-18s %'14.0f" 253 STAT_FMT, 254 i, job->name, 255 "Exec count:", jobs_exec_cnt[i], 256 "Exec period: ", cycles_to_ns(jobs_period[i]), 257 "Exec time", 258 cycles_to_ns(jobs_exec[i]), jobs_exec[i] * 100.0 / stats_period, 259 cycles_to_ns(jobs_exec_cnt[i] ? jobs_exec[i] / jobs_exec_cnt[i] 260 : 0), 261 cycles_to_ns(jobs_exec_min[i]), 262 cycles_to_ns(jobs_exec_max[i])); 263 } 264 265 if (qconf->n_rx_port > 0) { 266 job = &qconf->flush_job; 267 printf("\n\nJob %" PRIu32 ": %-20s " 268 "\n%-18s %'14" PRIu64 269 "\n%-18s %'14.0f" 270 STAT_FMT, 271 i, job->name, 272 "Exec count:", flush_exec_cnt, 273 "Exec period: ", cycles_to_ns(flush_period), 274 "Exec time", 275 cycles_to_ns(flush_exec), flush_exec * 100.0 / stats_period, 276 cycles_to_ns(flush_exec_cnt ? flush_exec / flush_exec_cnt : 0), 277 cycles_to_ns(flush_exec_min), 278 cycles_to_ns(flush_exec_max)); 279 } 280 } 281 282 /* Print out statistics on packets dropped */ 283 static void 284 show_stats_cb(__rte_unused void *param) 285 { 286 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx; 287 unsigned portid, lcore_id; 288 289 total_packets_dropped = 0; 290 total_packets_tx = 0; 291 total_packets_rx = 0; 292 293 const char clr[] = { 27, '[', '2', 'J', '\0' }; 294 const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' }; 295 296 /* Clear screen and move to top left */ 297 printf("%s%s" 298 "\nPort statistics ===================================", 299 clr, topLeft); 300 301 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { 302 /* skip disabled ports */ 303 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 304 continue; 305 printf("\nStatistics for port %u ------------------------------" 306 "\nPackets sent: %24"PRIu64 307 "\nPackets received: %20"PRIu64 308 "\nPackets dropped: %21"PRIu64, 309 portid, 310 port_statistics[portid].tx, 311 port_statistics[portid].rx, 312 port_statistics[portid].dropped); 313 314 total_packets_dropped += port_statistics[portid].dropped; 315 total_packets_tx += port_statistics[portid].tx; 316 total_packets_rx += port_statistics[portid].rx; 317 } 318 319 printf("\nAggregate statistics ===============================" 320 "\nTotal packets sent: %18"PRIu64 321 "\nTotal packets received: %14"PRIu64 322 "\nTotal packets dropped: %15"PRIu64 323 "\n====================================================", 324 total_packets_tx, 325 total_packets_rx, 326 total_packets_dropped); 327 328 RTE_LCORE_FOREACH(lcore_id) { 329 if (lcore_queue_conf[lcore_id].n_rx_port > 0) 330 show_lcore_stats(lcore_id); 331 } 332 333 printf("\n====================================================\n"); 334 rte_eal_alarm_set(timer_period * US_PER_S, show_stats_cb, NULL); 335 } 336 337 static void 338 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) 339 { 340 struct ether_hdr *eth; 341 void *tmp; 342 int sent; 343 unsigned dst_port; 344 struct rte_eth_dev_tx_buffer *buffer; 345 346 dst_port = l2fwd_dst_ports[portid]; 347 eth = rte_pktmbuf_mtod(m, struct ether_hdr *); 348 349 /* 02:00:00:00:00:xx */ 350 tmp = ð->d_addr.addr_bytes[0]; 351 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40); 352 353 /* src addr */ 354 ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr); 355 356 buffer = tx_buffer[dst_port]; 357 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); 358 if (sent) 359 port_statistics[dst_port].tx += sent; 360 } 361 362 static void 363 l2fwd_job_update_cb(struct rte_jobstats *job, int64_t result) 364 { 365 int64_t err = job->target - result; 366 int64_t histeresis = job->target / 8; 367 368 if (err < -histeresis) { 369 if (job->min_period + UPDATE_STEP_DOWN < job->period) 370 job->period -= UPDATE_STEP_DOWN; 371 } else if (err > histeresis) { 372 if (job->period + UPDATE_STEP_UP < job->max_period) 373 job->period += UPDATE_STEP_UP; 374 } 375 } 376 377 static void 378 l2fwd_fwd_job(__rte_unused struct rte_timer *timer, void *arg) 379 { 380 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 381 struct rte_mbuf *m; 382 383 const uint16_t port_idx = (uintptr_t) arg; 384 const unsigned lcore_id = rte_lcore_id(); 385 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id]; 386 struct rte_jobstats *job = &qconf->port_fwd_jobs[port_idx]; 387 const uint16_t portid = qconf->rx_port_list[port_idx]; 388 389 uint8_t j; 390 uint16_t total_nb_rx; 391 392 rte_jobstats_start(&qconf->jobs_context, job); 393 394 /* Call rx burst 2 times. This allow rte_jobstats logic to see if this 395 * function must be called more frequently. */ 396 397 total_nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, 398 MAX_PKT_BURST); 399 400 for (j = 0; j < total_nb_rx; j++) { 401 m = pkts_burst[j]; 402 rte_prefetch0(rte_pktmbuf_mtod(m, void *)); 403 l2fwd_simple_forward(m, portid); 404 } 405 406 if (total_nb_rx == MAX_PKT_BURST) { 407 const uint16_t nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, 408 MAX_PKT_BURST); 409 410 total_nb_rx += nb_rx; 411 for (j = 0; j < nb_rx; j++) { 412 m = pkts_burst[j]; 413 rte_prefetch0(rte_pktmbuf_mtod(m, void *)); 414 l2fwd_simple_forward(m, portid); 415 } 416 } 417 418 port_statistics[portid].rx += total_nb_rx; 419 420 /* Adjust period time in which we are running here. */ 421 if (rte_jobstats_finish(job, total_nb_rx) != 0) { 422 rte_timer_reset(&qconf->rx_timers[port_idx], job->period, PERIODICAL, 423 lcore_id, l2fwd_fwd_job, arg); 424 } 425 } 426 427 static void 428 l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg) 429 { 430 uint64_t now; 431 unsigned lcore_id; 432 struct lcore_queue_conf *qconf; 433 uint16_t portid; 434 unsigned i; 435 uint32_t sent; 436 struct rte_eth_dev_tx_buffer *buffer; 437 438 lcore_id = rte_lcore_id(); 439 qconf = &lcore_queue_conf[lcore_id]; 440 441 rte_jobstats_start(&qconf->jobs_context, &qconf->flush_job); 442 443 now = rte_get_timer_cycles(); 444 lcore_id = rte_lcore_id(); 445 qconf = &lcore_queue_conf[lcore_id]; 446 447 for (i = 0; i < qconf->n_rx_port; i++) { 448 portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; 449 450 if (qconf->next_flush_time[portid] <= now) 451 continue; 452 453 buffer = tx_buffer[portid]; 454 sent = rte_eth_tx_buffer_flush(portid, 0, buffer); 455 if (sent) 456 port_statistics[portid].tx += sent; 457 458 qconf->next_flush_time[portid] = rte_get_timer_cycles() + drain_tsc; 459 } 460 461 /* Pass target to indicate that this job is happy of time interwal 462 * in which it was called. */ 463 rte_jobstats_finish(&qconf->flush_job, qconf->flush_job.target); 464 } 465 466 /* main processing loop */ 467 static void 468 l2fwd_main_loop(void) 469 { 470 unsigned lcore_id; 471 unsigned i, portid; 472 struct lcore_queue_conf *qconf; 473 uint8_t stats_read_pending = 0; 474 uint8_t need_manage; 475 476 lcore_id = rte_lcore_id(); 477 qconf = &lcore_queue_conf[lcore_id]; 478 479 if (qconf->n_rx_port == 0) { 480 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id); 481 return; 482 } 483 484 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id); 485 486 for (i = 0; i < qconf->n_rx_port; i++) { 487 488 portid = qconf->rx_port_list[i]; 489 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id, 490 portid); 491 } 492 493 rte_jobstats_init(&qconf->idle_job, "idle", 0, 0, 0, 0); 494 495 for (;;) { 496 rte_spinlock_lock(&qconf->lock); 497 498 do { 499 rte_jobstats_context_start(&qconf->jobs_context); 500 501 /* Do the Idle job: 502 * - Read stats_read_pending flag 503 * - check if some real job need to be executed 504 */ 505 rte_jobstats_start(&qconf->jobs_context, &qconf->idle_job); 506 507 uint64_t repeats = 0; 508 509 do { 510 uint8_t i; 511 uint64_t now = rte_get_timer_cycles(); 512 513 repeats++; 514 need_manage = qconf->flush_timer.expire < now; 515 /* Check if we was esked to give a stats. */ 516 stats_read_pending = 517 rte_atomic16_read(&qconf->stats_read_pending); 518 need_manage |= stats_read_pending; 519 520 for (i = 0; i < qconf->n_rx_port && !need_manage; i++) 521 need_manage = qconf->rx_timers[i].expire < now; 522 523 } while (!need_manage); 524 525 if (likely(repeats != 1)) 526 rte_jobstats_finish(&qconf->idle_job, qconf->idle_job.target); 527 else 528 rte_jobstats_abort(&qconf->idle_job); 529 530 rte_timer_manage(); 531 rte_jobstats_context_finish(&qconf->jobs_context); 532 } while (likely(stats_read_pending == 0)); 533 534 rte_spinlock_unlock(&qconf->lock); 535 rte_pause(); 536 } 537 } 538 539 static int 540 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy) 541 { 542 l2fwd_main_loop(); 543 return 0; 544 } 545 546 /* display usage */ 547 static void 548 l2fwd_usage(const char *prgname) 549 { 550 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" 551 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 552 " -q NQ: number of queue (=ports) per lcore (default is 1)\n" 553 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n" 554 " -l set system default locale instead of default (\"C\" locale) for thousands separator in stats.", 555 prgname); 556 } 557 558 static int 559 l2fwd_parse_portmask(const char *portmask) 560 { 561 char *end = NULL; 562 unsigned long pm; 563 564 /* parse hexadecimal string */ 565 pm = strtoul(portmask, &end, 16); 566 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 567 return -1; 568 569 if (pm == 0) 570 return -1; 571 572 return pm; 573 } 574 575 static unsigned int 576 l2fwd_parse_nqueue(const char *q_arg) 577 { 578 char *end = NULL; 579 unsigned long n; 580 581 /* parse hexadecimal string */ 582 n = strtoul(q_arg, &end, 10); 583 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 584 return 0; 585 if (n == 0) 586 return 0; 587 if (n >= MAX_RX_QUEUE_PER_LCORE) 588 return 0; 589 590 return n; 591 } 592 593 static int 594 l2fwd_parse_timer_period(const char *q_arg) 595 { 596 char *end = NULL; 597 int n; 598 599 /* parse number string */ 600 n = strtol(q_arg, &end, 10); 601 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 602 return -1; 603 if (n >= MAX_TIMER_PERIOD) 604 return -1; 605 606 return n; 607 } 608 609 /* Parse the argument given in the command line of the application */ 610 static int 611 l2fwd_parse_args(int argc, char **argv) 612 { 613 int opt, ret; 614 char **argvopt; 615 int option_index; 616 char *prgname = argv[0]; 617 static struct option lgopts[] = { 618 {NULL, 0, 0, 0} 619 }; 620 621 argvopt = argv; 622 623 while ((opt = getopt_long(argc, argvopt, "p:q:T:l", 624 lgopts, &option_index)) != EOF) { 625 626 switch (opt) { 627 /* portmask */ 628 case 'p': 629 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg); 630 if (l2fwd_enabled_port_mask == 0) { 631 printf("invalid portmask\n"); 632 l2fwd_usage(prgname); 633 return -1; 634 } 635 break; 636 637 /* nqueue */ 638 case 'q': 639 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg); 640 if (l2fwd_rx_queue_per_lcore == 0) { 641 printf("invalid queue number\n"); 642 l2fwd_usage(prgname); 643 return -1; 644 } 645 break; 646 647 /* timer period */ 648 case 'T': 649 timer_period = l2fwd_parse_timer_period(optarg); 650 if (timer_period < 0) { 651 printf("invalid timer period\n"); 652 l2fwd_usage(prgname); 653 return -1; 654 } 655 break; 656 657 /* For thousands separator in printf. */ 658 case 'l': 659 setlocale(LC_ALL, ""); 660 break; 661 662 /* long options */ 663 case 0: 664 l2fwd_usage(prgname); 665 return -1; 666 667 default: 668 l2fwd_usage(prgname); 669 return -1; 670 } 671 } 672 673 if (optind >= 0) 674 argv[optind-1] = prgname; 675 676 ret = optind-1; 677 optind = 1; /* reset getopt lib */ 678 return ret; 679 } 680 681 /* Check the link status of all ports in up to 9s, and print them finally */ 682 static void 683 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask) 684 { 685 #define CHECK_INTERVAL 100 /* 100ms */ 686 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 687 uint16_t portid; 688 uint8_t count, all_ports_up, print_flag = 0; 689 struct rte_eth_link link; 690 691 printf("\nChecking link status"); 692 fflush(stdout); 693 for (count = 0; count <= MAX_CHECK_TIME; count++) { 694 all_ports_up = 1; 695 for (portid = 0; portid < port_num; portid++) { 696 if ((port_mask & (1 << portid)) == 0) 697 continue; 698 memset(&link, 0, sizeof(link)); 699 rte_eth_link_get_nowait(portid, &link); 700 /* print link status if flag set */ 701 if (print_flag == 1) { 702 if (link.link_status) 703 printf( 704 "Port%d Link Up. Speed %u Mbps - %s\n", 705 portid, link.link_speed, 706 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 707 ("full-duplex") : ("half-duplex\n")); 708 else 709 printf("Port %d Link Down\n", portid); 710 continue; 711 } 712 /* clear all_ports_up flag if any link down */ 713 if (link.link_status == ETH_LINK_DOWN) { 714 all_ports_up = 0; 715 break; 716 } 717 } 718 /* after finally printing all link status, get out */ 719 if (print_flag == 1) 720 break; 721 722 if (all_ports_up == 0) { 723 printf("."); 724 fflush(stdout); 725 rte_delay_ms(CHECK_INTERVAL); 726 } 727 728 /* set the print_flag if all ports up or timeout */ 729 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 730 print_flag = 1; 731 printf("done\n"); 732 } 733 } 734 } 735 736 int 737 main(int argc, char **argv) 738 { 739 struct lcore_queue_conf *qconf; 740 unsigned lcore_id, rx_lcore_id; 741 unsigned nb_ports_in_mask = 0; 742 int ret; 743 char name[RTE_JOBSTATS_NAMESIZE]; 744 uint16_t nb_ports; 745 uint16_t nb_ports_available; 746 uint16_t portid, last_port; 747 uint8_t i; 748 749 /* init EAL */ 750 ret = rte_eal_init(argc, argv); 751 if (ret < 0) 752 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); 753 argc -= ret; 754 argv += ret; 755 756 /* parse application arguments (after the EAL ones) */ 757 ret = l2fwd_parse_args(argc, argv); 758 if (ret < 0) 759 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n"); 760 761 rte_timer_subsystem_init(); 762 763 /* fetch default timer frequency. */ 764 hz = rte_get_timer_hz(); 765 766 /* create the mbuf pool */ 767 l2fwd_pktmbuf_pool = 768 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, 769 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); 770 if (l2fwd_pktmbuf_pool == NULL) 771 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 772 773 nb_ports = rte_eth_dev_count(); 774 if (nb_ports == 0) 775 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); 776 777 /* reset l2fwd_dst_ports */ 778 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) 779 l2fwd_dst_ports[portid] = 0; 780 last_port = 0; 781 782 /* 783 * Each logical core is assigned a dedicated TX queue on each port. 784 */ 785 for (portid = 0; portid < nb_ports; portid++) { 786 /* skip ports that are not enabled */ 787 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 788 continue; 789 790 if (nb_ports_in_mask % 2) { 791 l2fwd_dst_ports[portid] = last_port; 792 l2fwd_dst_ports[last_port] = portid; 793 } else 794 last_port = portid; 795 796 nb_ports_in_mask++; 797 } 798 if (nb_ports_in_mask % 2) { 799 printf("Notice: odd number of ports in portmask.\n"); 800 l2fwd_dst_ports[last_port] = last_port; 801 } 802 803 rx_lcore_id = 0; 804 qconf = NULL; 805 806 /* Initialize the port/queue configuration of each logical core */ 807 for (portid = 0; portid < nb_ports; portid++) { 808 /* skip ports that are not enabled */ 809 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) 810 continue; 811 812 /* get the lcore_id for this port */ 813 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 814 lcore_queue_conf[rx_lcore_id].n_rx_port == 815 l2fwd_rx_queue_per_lcore) { 816 rx_lcore_id++; 817 if (rx_lcore_id >= RTE_MAX_LCORE) 818 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 819 } 820 821 if (qconf != &lcore_queue_conf[rx_lcore_id]) 822 /* Assigned a new logical core in the loop above. */ 823 qconf = &lcore_queue_conf[rx_lcore_id]; 824 825 qconf->rx_port_list[qconf->n_rx_port] = portid; 826 qconf->n_rx_port++; 827 printf("Lcore %u: RX port %u\n", rx_lcore_id, portid); 828 } 829 830 nb_ports_available = nb_ports; 831 832 /* Initialise each port */ 833 for (portid = 0; portid < nb_ports; portid++) { 834 struct rte_eth_dev_info dev_info; 835 struct rte_eth_rxconf rxq_conf; 836 struct rte_eth_txconf txq_conf; 837 struct rte_eth_conf local_port_conf = port_conf; 838 839 /* skip ports that are not enabled */ 840 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { 841 printf("Skipping disabled port %u\n", portid); 842 nb_ports_available--; 843 continue; 844 } 845 /* init port */ 846 printf("Initializing port %u... ", portid); 847 fflush(stdout); 848 rte_eth_dev_info_get(portid, &dev_info); 849 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 850 local_port_conf.txmode.offloads |= 851 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 852 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf); 853 if (ret < 0) 854 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", 855 ret, portid); 856 857 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 858 &nb_txd); 859 if (ret < 0) 860 rte_exit(EXIT_FAILURE, 861 "Cannot adjust number of descriptors: err=%d, port=%u\n", 862 ret, portid); 863 864 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]); 865 866 /* init one RX queue */ 867 fflush(stdout); 868 rxq_conf = dev_info.default_rxconf; 869 rxq_conf.offloads = local_port_conf.rxmode.offloads; 870 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 871 rte_eth_dev_socket_id(portid), 872 &rxq_conf, 873 l2fwd_pktmbuf_pool); 874 if (ret < 0) 875 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n", 876 ret, portid); 877 878 /* init one TX queue on each port */ 879 txq_conf = dev_info.default_txconf; 880 txq_conf.txq_flags = ETH_TXQ_FLAGS_IGNORE; 881 txq_conf.offloads = local_port_conf.txmode.offloads; 882 fflush(stdout); 883 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, 884 rte_eth_dev_socket_id(portid), 885 &txq_conf); 886 if (ret < 0) 887 rte_exit(EXIT_FAILURE, 888 "rte_eth_tx_queue_setup:err=%d, port=%u\n", 889 ret, portid); 890 891 /* Initialize TX buffers */ 892 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 893 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 894 rte_eth_dev_socket_id(portid)); 895 if (tx_buffer[portid] == NULL) 896 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", 897 portid); 898 899 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); 900 901 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], 902 rte_eth_tx_buffer_count_callback, 903 &port_statistics[portid].dropped); 904 if (ret < 0) 905 rte_exit(EXIT_FAILURE, 906 "Cannot set error callback for tx buffer on port %u\n", 907 portid); 908 909 /* Start device */ 910 ret = rte_eth_dev_start(portid); 911 if (ret < 0) 912 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", 913 ret, portid); 914 915 printf("done:\n"); 916 917 rte_eth_promiscuous_enable(portid); 918 919 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", 920 portid, 921 l2fwd_ports_eth_addr[portid].addr_bytes[0], 922 l2fwd_ports_eth_addr[portid].addr_bytes[1], 923 l2fwd_ports_eth_addr[portid].addr_bytes[2], 924 l2fwd_ports_eth_addr[portid].addr_bytes[3], 925 l2fwd_ports_eth_addr[portid].addr_bytes[4], 926 l2fwd_ports_eth_addr[portid].addr_bytes[5]); 927 928 /* initialize port stats */ 929 memset(&port_statistics, 0, sizeof(port_statistics)); 930 } 931 932 if (!nb_ports_available) { 933 rte_exit(EXIT_FAILURE, 934 "All available ports are disabled. Please set portmask.\n"); 935 } 936 937 check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask); 938 939 drain_tsc = (hz + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; 940 941 RTE_LCORE_FOREACH(lcore_id) { 942 qconf = &lcore_queue_conf[lcore_id]; 943 944 rte_spinlock_init(&qconf->lock); 945 946 if (rte_jobstats_context_init(&qconf->jobs_context) != 0) 947 rte_panic("Jobs stats context for core %u init failed\n", lcore_id); 948 949 if (qconf->n_rx_port == 0) { 950 RTE_LOG(INFO, L2FWD, 951 "lcore %u: no ports so no jobs stats context initialization\n", 952 lcore_id); 953 continue; 954 } 955 /* Add flush job. 956 * Set fixed period by setting min = max = initial period. Set target to 957 * zero as it is irrelevant for this job. */ 958 rte_jobstats_init(&qconf->flush_job, "flush", drain_tsc, drain_tsc, 959 drain_tsc, 0); 960 961 rte_timer_init(&qconf->flush_timer); 962 ret = rte_timer_reset(&qconf->flush_timer, drain_tsc, PERIODICAL, 963 lcore_id, &l2fwd_flush_job, NULL); 964 965 if (ret < 0) { 966 rte_exit(1, "Failed to reset flush job timer for lcore %u: %s", 967 lcore_id, rte_strerror(-ret)); 968 } 969 970 for (i = 0; i < qconf->n_rx_port; i++) { 971 struct rte_jobstats *job = &qconf->port_fwd_jobs[i]; 972 973 portid = qconf->rx_port_list[i]; 974 printf("Setting forward job for port %u\n", portid); 975 976 snprintf(name, RTE_DIM(name), "port %u fwd", portid); 977 /* Setup forward job. 978 * Set min, max and initial period. Set target to MAX_PKT_BURST as 979 * this is desired optimal RX/TX burst size. */ 980 rte_jobstats_init(job, name, 0, drain_tsc, 0, MAX_PKT_BURST); 981 rte_jobstats_set_update_period_function(job, l2fwd_job_update_cb); 982 983 rte_timer_init(&qconf->rx_timers[i]); 984 ret = rte_timer_reset(&qconf->rx_timers[i], 0, PERIODICAL, lcore_id, 985 &l2fwd_fwd_job, (void *)(uintptr_t)i); 986 987 if (ret < 0) { 988 rte_exit(1, "Failed to reset lcore %u port %u job timer: %s", 989 lcore_id, qconf->rx_port_list[i], rte_strerror(-ret)); 990 } 991 } 992 } 993 994 if (timer_period) 995 rte_eal_alarm_set(timer_period * MS_PER_S, show_stats_cb, NULL); 996 else 997 RTE_LOG(INFO, L2FWD, "Stats display disabled\n"); 998 999 /* launch per-lcore init on every lcore */ 1000 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER); 1001 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 1002 if (rte_eal_wait_lcore(lcore_id) < 0) 1003 return -1; 1004 } 1005 1006 return 0; 1007 } 1008