1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <stdint.h> 37 #include <inttypes.h> 38 #include <sys/types.h> 39 #include <string.h> 40 #include <sys/queue.h> 41 #include <stdarg.h> 42 #include <errno.h> 43 #include <getopt.h> 44 45 #include <rte_common.h> 46 #include <rte_byteorder.h> 47 #include <rte_log.h> 48 #include <rte_memory.h> 49 #include <rte_memcpy.h> 50 #include <rte_memzone.h> 51 #include <rte_eal.h> 52 #include <rte_launch.h> 53 #include <rte_atomic.h> 54 #include <rte_cycles.h> 55 #include <rte_prefetch.h> 56 #include <rte_lcore.h> 57 #include <rte_per_lcore.h> 58 #include <rte_branch_prediction.h> 59 #include <rte_interrupts.h> 60 #include <rte_pci.h> 61 #include <rte_random.h> 62 #include <rte_debug.h> 63 #include <rte_ether.h> 64 #include <rte_ethdev.h> 65 #include <rte_mempool.h> 66 #include <rte_mbuf.h> 67 #include <rte_malloc.h> 68 #include <rte_fbk_hash.h> 69 #include <rte_ip.h> 70 71 #define RTE_LOGTYPE_IPv4_MULTICAST RTE_LOGTYPE_USER1 72 73 #define MAX_PORTS 16 74 75 #define MCAST_CLONE_PORTS 2 76 #define MCAST_CLONE_SEGS 2 77 78 #define PKT_MBUF_DATA_SIZE RTE_MBUF_DEFAULT_BUF_SIZE 79 #define NB_PKT_MBUF 8192 80 81 #define HDR_MBUF_DATA_SIZE (2 * RTE_PKTMBUF_HEADROOM) 82 #define NB_HDR_MBUF (NB_PKT_MBUF * MAX_PORTS) 83 84 #define NB_CLONE_MBUF (NB_PKT_MBUF * MCAST_CLONE_PORTS * MCAST_CLONE_SEGS * 2) 85 86 /* allow max jumbo frame 9.5 KB */ 87 #define JUMBO_FRAME_MAX_SIZE 0x2600 88 89 #define MAX_PKT_BURST 32 90 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ 91 92 /* Configure how many packets ahead to prefetch, when reading packets */ 93 #define PREFETCH_OFFSET 3 94 95 /* 96 * Construct Ethernet multicast address from IPv4 multicast address. 97 * Citing RFC 1112, section 6.4: 98 * "An IP host group address is mapped to an Ethernet multicast address 99 * by placing the low-order 23-bits of the IP address into the low-order 100 * 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex)." 101 */ 102 #define ETHER_ADDR_FOR_IPV4_MCAST(x) \ 103 (rte_cpu_to_be_64(0x01005e000000ULL | ((x) & 0x7fffff)) >> 16) 104 105 /* 106 * Configurable number of RX/TX ring descriptors 107 */ 108 #define RTE_TEST_RX_DESC_DEFAULT 128 109 #define RTE_TEST_TX_DESC_DEFAULT 512 110 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 111 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; 112 113 /* ethernet addresses of ports */ 114 static struct ether_addr ports_eth_addr[MAX_PORTS]; 115 116 /* mask of enabled ports */ 117 static uint32_t enabled_port_mask = 0; 118 119 static uint16_t nb_ports; 120 121 static int rx_queue_per_lcore = 1; 122 123 struct mbuf_table { 124 uint16_t len; 125 struct rte_mbuf *m_table[MAX_PKT_BURST]; 126 }; 127 128 #define MAX_RX_QUEUE_PER_LCORE 16 129 #define MAX_TX_QUEUE_PER_PORT 16 130 struct lcore_queue_conf { 131 uint64_t tx_tsc; 132 uint16_t n_rx_queue; 133 uint8_t rx_queue_list[MAX_RX_QUEUE_PER_LCORE]; 134 uint16_t tx_queue_id[MAX_PORTS]; 135 struct mbuf_table tx_mbufs[MAX_PORTS]; 136 } __rte_cache_aligned; 137 static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; 138 139 static struct rte_eth_conf port_conf = { 140 .rxmode = { 141 .max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE, 142 .split_hdr_size = 0, 143 .header_split = 0, /**< Header Split disabled */ 144 .hw_ip_checksum = 0, /**< IP checksum offload disabled */ 145 .hw_vlan_filter = 0, /**< VLAN filtering disabled */ 146 .jumbo_frame = 1, /**< Jumbo Frame Support enabled */ 147 .hw_strip_crc = 1, /**< CRC stripped by hardware */ 148 }, 149 .txmode = { 150 .mq_mode = ETH_MQ_TX_NONE, 151 }, 152 }; 153 154 static struct rte_mempool *packet_pool, *header_pool, *clone_pool; 155 156 157 /* Multicast */ 158 static struct rte_fbk_hash_params mcast_hash_params = { 159 .name = "MCAST_HASH", 160 .entries = 1024, 161 .entries_per_bucket = 4, 162 .socket_id = 0, 163 .hash_func = NULL, 164 .init_val = 0, 165 }; 166 167 struct rte_fbk_hash_table *mcast_hash = NULL; 168 169 struct mcast_group_params { 170 uint32_t ip; 171 uint16_t port_mask; 172 }; 173 174 static struct mcast_group_params mcast_group_table[] = { 175 {IPv4(224,0,0,101), 0x1}, 176 {IPv4(224,0,0,102), 0x2}, 177 {IPv4(224,0,0,103), 0x3}, 178 {IPv4(224,0,0,104), 0x4}, 179 {IPv4(224,0,0,105), 0x5}, 180 {IPv4(224,0,0,106), 0x6}, 181 {IPv4(224,0,0,107), 0x7}, 182 {IPv4(224,0,0,108), 0x8}, 183 {IPv4(224,0,0,109), 0x9}, 184 {IPv4(224,0,0,110), 0xA}, 185 {IPv4(224,0,0,111), 0xB}, 186 {IPv4(224,0,0,112), 0xC}, 187 {IPv4(224,0,0,113), 0xD}, 188 {IPv4(224,0,0,114), 0xE}, 189 {IPv4(224,0,0,115), 0xF}, 190 }; 191 192 #define N_MCAST_GROUPS \ 193 (sizeof (mcast_group_table) / sizeof (mcast_group_table[0])) 194 195 196 /* Send burst of packets on an output interface */ 197 static void 198 send_burst(struct lcore_queue_conf *qconf, uint16_t port) 199 { 200 struct rte_mbuf **m_table; 201 uint16_t n, queueid; 202 int ret; 203 204 queueid = qconf->tx_queue_id[port]; 205 m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; 206 n = qconf->tx_mbufs[port].len; 207 208 ret = rte_eth_tx_burst(port, queueid, m_table, n); 209 while (unlikely (ret < n)) { 210 rte_pktmbuf_free(m_table[ret]); 211 ret++; 212 } 213 214 qconf->tx_mbufs[port].len = 0; 215 } 216 217 /* Get number of bits set. */ 218 static inline uint32_t 219 bitcnt(uint32_t v) 220 { 221 uint32_t n; 222 223 for (n = 0; v != 0; v &= v - 1, n++) 224 ; 225 226 return n; 227 } 228 229 /** 230 * Create the output multicast packet based on the given input packet. 231 * There are two approaches for creating outgoing packet, though both 232 * are based on data zero-copy idea, they differ in few details: 233 * First one creates a clone of the input packet, e.g - walk though all 234 * segments of the input packet, and for each of them create a new packet 235 * mbuf and attach that new mbuf to the segment (refer to rte_pktmbuf_clone() 236 * for more details). Then new mbuf is allocated for the packet header 237 * and is prepended to the 'clone' mbuf. 238 * Second approach doesn't make a clone, it just increment refcnt for all 239 * input packet segments. Then it allocates new mbuf for the packet header 240 * and prepends it to the input packet. 241 * Basically first approach reuses only input packet's data, but creates 242 * it's own copy of packet's metadata. Second approach reuses both input's 243 * packet data and metadata. 244 * The advantage of first approach - is that each outgoing packet has it's 245 * own copy of metadata, so we can safely modify data pointer of the 246 * input packet. That allows us to skip creation if the output packet for 247 * the last destination port, but instead modify input packet's header inplace, 248 * e.g: for N destination ports we need to invoke mcast_out_pkt (N-1) times. 249 * The advantage of second approach - less work for each outgoing packet, 250 * e.g: we skip "clone" operation completely. Though it comes with a price - 251 * input packet's metadata has to be intact. So for N destination ports we 252 * need to invoke mcast_out_pkt N times. 253 * So for small number of outgoing ports (and segments in the input packet) 254 * first approach will be faster. 255 * As number of outgoing ports (and/or input segments) will grow, 256 * second way will become more preferable. 257 * 258 * @param pkt 259 * Input packet mbuf. 260 * @param use_clone 261 * Control which of the two approaches described above should be used: 262 * - 0 - use second approach: 263 * Don't "clone" input packet. 264 * Prepend new header directly to the input packet 265 * - 1 - use first approach: 266 * Make a "clone" of input packet first. 267 * Prepend new header to the clone of the input packet 268 * @return 269 * - The pointer to the new outgoing packet. 270 * - NULL if operation failed. 271 */ 272 static inline struct rte_mbuf * 273 mcast_out_pkt(struct rte_mbuf *pkt, int use_clone) 274 { 275 struct rte_mbuf *hdr; 276 277 /* Create new mbuf for the header. */ 278 if (unlikely ((hdr = rte_pktmbuf_alloc(header_pool)) == NULL)) 279 return NULL; 280 281 /* If requested, then make a new clone packet. */ 282 if (use_clone != 0 && 283 unlikely ((pkt = rte_pktmbuf_clone(pkt, clone_pool)) == NULL)) { 284 rte_pktmbuf_free(hdr); 285 return NULL; 286 } 287 288 /* prepend new header */ 289 hdr->next = pkt; 290 291 292 /* update header's fields */ 293 hdr->pkt_len = (uint16_t)(hdr->data_len + pkt->pkt_len); 294 hdr->nb_segs = (uint8_t)(pkt->nb_segs + 1); 295 296 /* copy metadata from source packet*/ 297 hdr->port = pkt->port; 298 hdr->vlan_tci = pkt->vlan_tci; 299 hdr->vlan_tci_outer = pkt->vlan_tci_outer; 300 hdr->tx_offload = pkt->tx_offload; 301 hdr->hash = pkt->hash; 302 303 hdr->ol_flags = pkt->ol_flags; 304 305 __rte_mbuf_sanity_check(hdr, 1); 306 return hdr; 307 } 308 309 /* 310 * Write new Ethernet header to the outgoing packet, 311 * and put it into the outgoing queue for the given port. 312 */ 313 static inline void 314 mcast_send_pkt(struct rte_mbuf *pkt, struct ether_addr *dest_addr, 315 struct lcore_queue_conf *qconf, uint16_t port) 316 { 317 struct ether_hdr *ethdr; 318 uint16_t len; 319 320 /* Construct Ethernet header. */ 321 ethdr = (struct ether_hdr *)rte_pktmbuf_prepend(pkt, (uint16_t)sizeof(*ethdr)); 322 RTE_ASSERT(ethdr != NULL); 323 324 ether_addr_copy(dest_addr, ðdr->d_addr); 325 ether_addr_copy(&ports_eth_addr[port], ðdr->s_addr); 326 ethdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv4); 327 328 /* Put new packet into the output queue */ 329 len = qconf->tx_mbufs[port].len; 330 qconf->tx_mbufs[port].m_table[len] = pkt; 331 qconf->tx_mbufs[port].len = ++len; 332 333 /* Transmit packets */ 334 if (unlikely(MAX_PKT_BURST == len)) 335 send_burst(qconf, port); 336 } 337 338 /* Multicast forward of the input packet */ 339 static inline void 340 mcast_forward(struct rte_mbuf *m, struct lcore_queue_conf *qconf) 341 { 342 struct rte_mbuf *mc; 343 struct ipv4_hdr *iphdr; 344 uint32_t dest_addr, port_mask, port_num, use_clone; 345 int32_t hash; 346 uint16_t port; 347 union { 348 uint64_t as_int; 349 struct ether_addr as_addr; 350 } dst_eth_addr; 351 352 /* Remove the Ethernet header from the input packet */ 353 iphdr = (struct ipv4_hdr *)rte_pktmbuf_adj(m, (uint16_t)sizeof(struct ether_hdr)); 354 RTE_ASSERT(iphdr != NULL); 355 356 dest_addr = rte_be_to_cpu_32(iphdr->dst_addr); 357 358 /* 359 * Check that it is a valid multicast address and 360 * we have some active ports assigned to it. 361 */ 362 if(!IS_IPV4_MCAST(dest_addr) || 363 (hash = rte_fbk_hash_lookup(mcast_hash, dest_addr)) <= 0 || 364 (port_mask = hash & enabled_port_mask) == 0) { 365 rte_pktmbuf_free(m); 366 return; 367 } 368 369 /* Calculate number of destination ports. */ 370 port_num = bitcnt(port_mask); 371 372 /* Should we use rte_pktmbuf_clone() or not. */ 373 use_clone = (port_num <= MCAST_CLONE_PORTS && 374 m->nb_segs <= MCAST_CLONE_SEGS); 375 376 /* Mark all packet's segments as referenced port_num times */ 377 if (use_clone == 0) 378 rte_pktmbuf_refcnt_update(m, (uint16_t)port_num); 379 380 /* construct destination ethernet address */ 381 dst_eth_addr.as_int = ETHER_ADDR_FOR_IPV4_MCAST(dest_addr); 382 383 for (port = 0; use_clone != port_mask; port_mask >>= 1, port++) { 384 385 /* Prepare output packet and send it out. */ 386 if ((port_mask & 1) != 0) { 387 if (likely ((mc = mcast_out_pkt(m, use_clone)) != NULL)) 388 mcast_send_pkt(mc, &dst_eth_addr.as_addr, 389 qconf, port); 390 else if (use_clone == 0) 391 rte_pktmbuf_free(m); 392 } 393 } 394 395 /* 396 * If we making clone packets, then, for the last destination port, 397 * we can overwrite input packet's metadata. 398 */ 399 if (use_clone != 0) 400 mcast_send_pkt(m, &dst_eth_addr.as_addr, qconf, port); 401 else 402 rte_pktmbuf_free(m); 403 } 404 405 /* Send burst of outgoing packet, if timeout expires. */ 406 static inline void 407 send_timeout_burst(struct lcore_queue_conf *qconf) 408 { 409 uint64_t cur_tsc; 410 uint16_t portid; 411 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; 412 413 cur_tsc = rte_rdtsc(); 414 if (likely (cur_tsc < qconf->tx_tsc + drain_tsc)) 415 return; 416 417 for (portid = 0; portid < MAX_PORTS; portid++) { 418 if (qconf->tx_mbufs[portid].len != 0) 419 send_burst(qconf, portid); 420 } 421 qconf->tx_tsc = cur_tsc; 422 } 423 424 /* main processing loop */ 425 static int 426 main_loop(__rte_unused void *dummy) 427 { 428 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 429 unsigned lcore_id; 430 int i, j, nb_rx; 431 uint16_t portid; 432 struct lcore_queue_conf *qconf; 433 434 lcore_id = rte_lcore_id(); 435 qconf = &lcore_queue_conf[lcore_id]; 436 437 438 if (qconf->n_rx_queue == 0) { 439 RTE_LOG(INFO, IPv4_MULTICAST, "lcore %u has nothing to do\n", 440 lcore_id); 441 return 0; 442 } 443 444 RTE_LOG(INFO, IPv4_MULTICAST, "entering main loop on lcore %u\n", 445 lcore_id); 446 447 for (i = 0; i < qconf->n_rx_queue; i++) { 448 449 portid = qconf->rx_queue_list[i]; 450 RTE_LOG(INFO, IPv4_MULTICAST, " -- lcoreid=%u portid=%d\n", 451 lcore_id, portid); 452 } 453 454 while (1) { 455 456 /* 457 * Read packet from RX queues 458 */ 459 for (i = 0; i < qconf->n_rx_queue; i++) { 460 461 portid = qconf->rx_queue_list[i]; 462 nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, 463 MAX_PKT_BURST); 464 465 /* Prefetch first packets */ 466 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) { 467 rte_prefetch0(rte_pktmbuf_mtod( 468 pkts_burst[j], void *)); 469 } 470 471 /* Prefetch and forward already prefetched packets */ 472 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) { 473 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[ 474 j + PREFETCH_OFFSET], void *)); 475 mcast_forward(pkts_burst[j], qconf); 476 } 477 478 /* Forward remaining prefetched packets */ 479 for (; j < nb_rx; j++) { 480 mcast_forward(pkts_burst[j], qconf); 481 } 482 } 483 484 /* Send out packets from TX queues */ 485 send_timeout_burst(qconf); 486 } 487 } 488 489 /* display usage */ 490 static void 491 print_usage(const char *prgname) 492 { 493 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" 494 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 495 " -q NQ: number of queue (=ports) per lcore (default is 1)\n", 496 prgname); 497 } 498 499 static uint32_t 500 parse_portmask(const char *portmask) 501 { 502 char *end = NULL; 503 unsigned long pm; 504 505 /* parse hexadecimal string */ 506 pm = strtoul(portmask, &end, 16); 507 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 508 return 0; 509 510 return (uint32_t)pm; 511 } 512 513 static int 514 parse_nqueue(const char *q_arg) 515 { 516 char *end = NULL; 517 unsigned long n; 518 519 /* parse numerical string */ 520 errno = 0; 521 n = strtoul(q_arg, &end, 0); 522 if (errno != 0 || end == NULL || *end != '\0' || 523 n == 0 || n >= MAX_RX_QUEUE_PER_LCORE) 524 return -1; 525 526 return n; 527 } 528 529 /* Parse the argument given in the command line of the application */ 530 static int 531 parse_args(int argc, char **argv) 532 { 533 int opt, ret; 534 char **argvopt; 535 int option_index; 536 char *prgname = argv[0]; 537 static struct option lgopts[] = { 538 {NULL, 0, 0, 0} 539 }; 540 541 argvopt = argv; 542 543 while ((opt = getopt_long(argc, argvopt, "p:q:", 544 lgopts, &option_index)) != EOF) { 545 546 switch (opt) { 547 /* portmask */ 548 case 'p': 549 enabled_port_mask = parse_portmask(optarg); 550 if (enabled_port_mask == 0) { 551 printf("invalid portmask\n"); 552 print_usage(prgname); 553 return -1; 554 } 555 break; 556 557 /* nqueue */ 558 case 'q': 559 rx_queue_per_lcore = parse_nqueue(optarg); 560 if (rx_queue_per_lcore < 0) { 561 printf("invalid queue number\n"); 562 print_usage(prgname); 563 return -1; 564 } 565 break; 566 567 default: 568 print_usage(prgname); 569 return -1; 570 } 571 } 572 573 if (optind >= 0) 574 argv[optind-1] = prgname; 575 576 ret = optind-1; 577 optind = 1; /* reset getopt lib */ 578 return ret; 579 } 580 581 static void 582 print_ethaddr(const char *name, struct ether_addr *eth_addr) 583 { 584 char buf[ETHER_ADDR_FMT_SIZE]; 585 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); 586 printf("%s%s", name, buf); 587 } 588 589 static int 590 init_mcast_hash(void) 591 { 592 uint32_t i; 593 594 mcast_hash_params.socket_id = rte_socket_id(); 595 mcast_hash = rte_fbk_hash_create(&mcast_hash_params); 596 if (mcast_hash == NULL){ 597 return -1; 598 } 599 600 for (i = 0; i < N_MCAST_GROUPS; i ++){ 601 if (rte_fbk_hash_add_key(mcast_hash, 602 mcast_group_table[i].ip, 603 mcast_group_table[i].port_mask) < 0) { 604 return -1; 605 } 606 } 607 608 return 0; 609 } 610 611 /* Check the link status of all ports in up to 9s, and print them finally */ 612 static void 613 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask) 614 { 615 #define CHECK_INTERVAL 100 /* 100ms */ 616 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 617 uint16_t portid; 618 uint8_t count, all_ports_up, print_flag = 0; 619 struct rte_eth_link link; 620 621 printf("\nChecking link status"); 622 fflush(stdout); 623 for (count = 0; count <= MAX_CHECK_TIME; count++) { 624 all_ports_up = 1; 625 for (portid = 0; portid < port_num; portid++) { 626 if ((port_mask & (1 << portid)) == 0) 627 continue; 628 memset(&link, 0, sizeof(link)); 629 rte_eth_link_get_nowait(portid, &link); 630 /* print link status if flag set */ 631 if (print_flag == 1) { 632 if (link.link_status) 633 printf( 634 "Port%d Link Up. Speed %u Mbps - %s\n", 635 portid, link.link_speed, 636 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 637 ("full-duplex") : ("half-duplex\n")); 638 else 639 printf("Port %d Link Down\n", portid); 640 continue; 641 } 642 /* clear all_ports_up flag if any link down */ 643 if (link.link_status == ETH_LINK_DOWN) { 644 all_ports_up = 0; 645 break; 646 } 647 } 648 /* after finally printing all link status, get out */ 649 if (print_flag == 1) 650 break; 651 652 if (all_ports_up == 0) { 653 printf("."); 654 fflush(stdout); 655 rte_delay_ms(CHECK_INTERVAL); 656 } 657 658 /* set the print_flag if all ports up or timeout */ 659 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 660 print_flag = 1; 661 printf("done\n"); 662 } 663 } 664 } 665 666 int 667 main(int argc, char **argv) 668 { 669 struct lcore_queue_conf *qconf; 670 struct rte_eth_dev_info dev_info; 671 struct rte_eth_txconf *txconf; 672 int ret; 673 uint16_t queueid; 674 unsigned lcore_id = 0, rx_lcore_id = 0; 675 uint32_t n_tx_queue, nb_lcores; 676 uint16_t portid; 677 678 /* init EAL */ 679 ret = rte_eal_init(argc, argv); 680 if (ret < 0) 681 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n"); 682 argc -= ret; 683 argv += ret; 684 685 /* parse application arguments (after the EAL ones) */ 686 ret = parse_args(argc, argv); 687 if (ret < 0) 688 rte_exit(EXIT_FAILURE, "Invalid IPV4_MULTICAST parameters\n"); 689 690 /* create the mbuf pools */ 691 packet_pool = rte_pktmbuf_pool_create("packet_pool", NB_PKT_MBUF, 32, 692 0, PKT_MBUF_DATA_SIZE, rte_socket_id()); 693 694 if (packet_pool == NULL) 695 rte_exit(EXIT_FAILURE, "Cannot init packet mbuf pool\n"); 696 697 header_pool = rte_pktmbuf_pool_create("header_pool", NB_HDR_MBUF, 32, 698 0, HDR_MBUF_DATA_SIZE, rte_socket_id()); 699 700 if (header_pool == NULL) 701 rte_exit(EXIT_FAILURE, "Cannot init header mbuf pool\n"); 702 703 clone_pool = rte_pktmbuf_pool_create("clone_pool", NB_CLONE_MBUF, 32, 704 0, 0, rte_socket_id()); 705 706 if (clone_pool == NULL) 707 rte_exit(EXIT_FAILURE, "Cannot init clone mbuf pool\n"); 708 709 nb_ports = rte_eth_dev_count(); 710 if (nb_ports == 0) 711 rte_exit(EXIT_FAILURE, "No physical ports!\n"); 712 if (nb_ports > MAX_PORTS) 713 nb_ports = MAX_PORTS; 714 715 nb_lcores = rte_lcore_count(); 716 717 /* initialize all ports */ 718 for (portid = 0; portid < nb_ports; portid++) { 719 /* skip ports that are not enabled */ 720 if ((enabled_port_mask & (1 << portid)) == 0) { 721 printf("Skipping disabled port %d\n", portid); 722 continue; 723 } 724 725 qconf = &lcore_queue_conf[rx_lcore_id]; 726 727 /* limit the frame size to the maximum supported by NIC */ 728 rte_eth_dev_info_get(portid, &dev_info); 729 port_conf.rxmode.max_rx_pkt_len = RTE_MIN( 730 dev_info.max_rx_pktlen, port_conf.rxmode.max_rx_pkt_len); 731 732 /* get the lcore_id for this port */ 733 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 734 qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) { 735 736 rx_lcore_id ++; 737 qconf = &lcore_queue_conf[rx_lcore_id]; 738 739 if (rx_lcore_id >= RTE_MAX_LCORE) 740 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 741 } 742 qconf->rx_queue_list[qconf->n_rx_queue] = portid; 743 qconf->n_rx_queue++; 744 745 /* init port */ 746 printf("Initializing port %d on lcore %u... ", portid, 747 rx_lcore_id); 748 fflush(stdout); 749 750 n_tx_queue = nb_lcores; 751 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT) 752 n_tx_queue = MAX_TX_QUEUE_PER_PORT; 753 ret = rte_eth_dev_configure(portid, 1, (uint16_t)n_tx_queue, 754 &port_conf); 755 if (ret < 0) 756 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n", 757 ret, portid); 758 759 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 760 &nb_txd); 761 if (ret < 0) 762 rte_exit(EXIT_FAILURE, 763 "Cannot adjust number of descriptors: err=%d, port=%d\n", 764 ret, portid); 765 766 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]); 767 print_ethaddr(" Address:", &ports_eth_addr[portid]); 768 printf(", "); 769 770 /* init one RX queue */ 771 queueid = 0; 772 printf("rxq=%hu ", queueid); 773 fflush(stdout); 774 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd, 775 rte_eth_dev_socket_id(portid), 776 NULL, 777 packet_pool); 778 if (ret < 0) 779 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, port=%d\n", 780 ret, portid); 781 782 /* init one TX queue per couple (lcore,port) */ 783 queueid = 0; 784 785 RTE_LCORE_FOREACH(lcore_id) { 786 if (rte_lcore_is_enabled(lcore_id) == 0) 787 continue; 788 printf("txq=%u,%hu ", lcore_id, queueid); 789 fflush(stdout); 790 791 txconf = &dev_info.default_txconf; 792 txconf->txq_flags = 0; 793 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd, 794 rte_lcore_to_socket_id(lcore_id), txconf); 795 if (ret < 0) 796 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, " 797 "port=%d\n", ret, portid); 798 799 qconf = &lcore_queue_conf[lcore_id]; 800 qconf->tx_queue_id[portid] = queueid; 801 queueid++; 802 } 803 804 /* Start device */ 805 ret = rte_eth_dev_start(portid); 806 if (ret < 0) 807 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n", 808 ret, portid); 809 810 printf("done:\n"); 811 } 812 813 check_all_ports_link_status(nb_ports, enabled_port_mask); 814 815 /* initialize the multicast hash */ 816 int retval = init_mcast_hash(); 817 if (retval != 0) 818 rte_exit(EXIT_FAILURE, "Cannot build the multicast hash\n"); 819 820 /* launch per-lcore init on every lcore */ 821 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER); 822 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 823 if (rte_eal_wait_lcore(lcore_id) < 0) 824 return -1; 825 } 826 827 return 0; 828 } 829