1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation 3 */ 4 5 #include <stdio.h> 6 #include <stdlib.h> 7 #include <stdint.h> 8 #include <inttypes.h> 9 #include <sys/types.h> 10 #include <string.h> 11 #include <sys/queue.h> 12 #include <stdarg.h> 13 #include <errno.h> 14 #include <getopt.h> 15 #include <signal.h> 16 #include <sys/param.h> 17 18 #include <rte_common.h> 19 #include <rte_byteorder.h> 20 #include <rte_log.h> 21 #include <rte_memory.h> 22 #include <rte_memcpy.h> 23 #include <rte_eal.h> 24 #include <rte_launch.h> 25 #include <rte_atomic.h> 26 #include <rte_cycles.h> 27 #include <rte_prefetch.h> 28 #include <rte_lcore.h> 29 #include <rte_per_lcore.h> 30 #include <rte_branch_prediction.h> 31 #include <rte_interrupts.h> 32 #include <rte_random.h> 33 #include <rte_debug.h> 34 #include <rte_ether.h> 35 #include <rte_ethdev.h> 36 #include <rte_mempool.h> 37 #include <rte_mbuf.h> 38 #include <rte_malloc.h> 39 #include <rte_ip.h> 40 #include <rte_tcp.h> 41 #include <rte_udp.h> 42 #include <rte_string_fns.h> 43 #include <rte_lpm.h> 44 #include <rte_lpm6.h> 45 46 #include <rte_ip_frag.h> 47 48 #define MAX_PKT_BURST 32 49 50 51 #define RTE_LOGTYPE_IP_RSMBL RTE_LOGTYPE_USER1 52 53 #define MAX_JUMBO_PKT_LEN 9600 54 55 #define BUF_SIZE RTE_MBUF_DEFAULT_DATAROOM 56 #define MBUF_DATA_SIZE RTE_MBUF_DEFAULT_BUF_SIZE 57 58 #define NB_MBUF 8192 59 #define MEMPOOL_CACHE_SIZE 256 60 61 /* allow max jumbo frame 9.5 KB */ 62 #define JUMBO_FRAME_MAX_SIZE 0x2600 63 64 #define MAX_FLOW_NUM UINT16_MAX 65 #define MIN_FLOW_NUM 1 66 #define DEF_FLOW_NUM 0x1000 67 68 /* TTL numbers are in ms. */ 69 #define MAX_FLOW_TTL (3600 * MS_PER_S) 70 #define MIN_FLOW_TTL 1 71 #define DEF_FLOW_TTL MS_PER_S 72 73 #define MAX_FRAG_NUM RTE_LIBRTE_IP_FRAG_MAX_FRAG 74 75 /* Should be power of two. */ 76 #define IP_FRAG_TBL_BUCKET_ENTRIES 16 77 78 static uint32_t max_flow_num = DEF_FLOW_NUM; 79 static uint32_t max_flow_ttl = DEF_FLOW_TTL; 80 81 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ 82 83 #define NB_SOCKETS 8 84 85 /* Configure how many packets ahead to prefetch, when reading packets */ 86 #define PREFETCH_OFFSET 3 87 88 /* 89 * Configurable number of RX/TX ring descriptors 90 */ 91 #define RTE_TEST_RX_DESC_DEFAULT 1024 92 #define RTE_TEST_TX_DESC_DEFAULT 1024 93 94 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 95 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; 96 97 /* ethernet addresses of ports */ 98 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS]; 99 100 #ifndef IPv4_BYTES 101 #define IPv4_BYTES_FMT "%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8 102 #define IPv4_BYTES(addr) \ 103 (uint8_t) (((addr) >> 24) & 0xFF),\ 104 (uint8_t) (((addr) >> 16) & 0xFF),\ 105 (uint8_t) (((addr) >> 8) & 0xFF),\ 106 (uint8_t) ((addr) & 0xFF) 107 #endif 108 109 #ifndef IPv6_BYTES 110 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\ 111 "%02x%02x:%02x%02x:%02x%02x:%02x%02x" 112 #define IPv6_BYTES(addr) \ 113 addr[0], addr[1], addr[2], addr[3], \ 114 addr[4], addr[5], addr[6], addr[7], \ 115 addr[8], addr[9], addr[10], addr[11],\ 116 addr[12], addr[13],addr[14], addr[15] 117 #endif 118 119 #define IPV6_ADDR_LEN 16 120 121 /* mask of enabled ports */ 122 static uint32_t enabled_port_mask = 0; 123 124 static int rx_queue_per_lcore = 1; 125 126 struct mbuf_table { 127 uint32_t len; 128 uint32_t head; 129 uint32_t tail; 130 struct rte_mbuf *m_table[0]; 131 }; 132 133 struct rx_queue { 134 struct rte_ip_frag_tbl *frag_tbl; 135 struct rte_mempool *pool; 136 struct rte_lpm *lpm; 137 struct rte_lpm6 *lpm6; 138 uint16_t portid; 139 }; 140 141 struct tx_lcore_stat { 142 uint64_t call; 143 uint64_t drop; 144 uint64_t queue; 145 uint64_t send; 146 }; 147 148 #define MAX_RX_QUEUE_PER_LCORE 16 149 #define MAX_TX_QUEUE_PER_PORT 16 150 #define MAX_RX_QUEUE_PER_PORT 128 151 152 struct lcore_queue_conf { 153 uint16_t n_rx_queue; 154 struct rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE]; 155 uint16_t tx_queue_id[RTE_MAX_ETHPORTS]; 156 struct rte_ip_frag_death_row death_row; 157 struct mbuf_table *tx_mbufs[RTE_MAX_ETHPORTS]; 158 struct tx_lcore_stat tx_stat; 159 } __rte_cache_aligned; 160 static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; 161 162 static struct rte_eth_conf port_conf = { 163 .rxmode = { 164 .mq_mode = ETH_MQ_RX_RSS, 165 .max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE, 166 .split_hdr_size = 0, 167 .offloads = (DEV_RX_OFFLOAD_CHECKSUM | 168 DEV_RX_OFFLOAD_JUMBO_FRAME), 169 }, 170 .rx_adv_conf = { 171 .rss_conf = { 172 .rss_key = NULL, 173 .rss_hf = ETH_RSS_IP, 174 }, 175 }, 176 .txmode = { 177 .mq_mode = ETH_MQ_TX_NONE, 178 .offloads = (DEV_TX_OFFLOAD_IPV4_CKSUM | 179 DEV_TX_OFFLOAD_MULTI_SEGS), 180 }, 181 }; 182 183 /* 184 * IPv4 forwarding table 185 */ 186 struct l3fwd_ipv4_route { 187 uint32_t ip; 188 uint8_t depth; 189 uint8_t if_out; 190 }; 191 192 struct l3fwd_ipv4_route l3fwd_ipv4_route_array[] = { 193 {IPv4(100,10,0,0), 16, 0}, 194 {IPv4(100,20,0,0), 16, 1}, 195 {IPv4(100,30,0,0), 16, 2}, 196 {IPv4(100,40,0,0), 16, 3}, 197 {IPv4(100,50,0,0), 16, 4}, 198 {IPv4(100,60,0,0), 16, 5}, 199 {IPv4(100,70,0,0), 16, 6}, 200 {IPv4(100,80,0,0), 16, 7}, 201 }; 202 203 /* 204 * IPv6 forwarding table 205 */ 206 207 struct l3fwd_ipv6_route { 208 uint8_t ip[IPV6_ADDR_LEN]; 209 uint8_t depth; 210 uint8_t if_out; 211 }; 212 213 static struct l3fwd_ipv6_route l3fwd_ipv6_route_array[] = { 214 {{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 0}, 215 {{2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 1}, 216 {{3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 2}, 217 {{4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 3}, 218 {{5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 4}, 219 {{6,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 5}, 220 {{7,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 6}, 221 {{8,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 7}, 222 }; 223 224 #define LPM_MAX_RULES 1024 225 #define LPM6_MAX_RULES 1024 226 #define LPM6_NUMBER_TBL8S (1 << 16) 227 228 struct rte_lpm6_config lpm6_config = { 229 .max_rules = LPM6_MAX_RULES, 230 .number_tbl8s = LPM6_NUMBER_TBL8S, 231 .flags = 0 232 }; 233 234 static struct rte_lpm *socket_lpm[RTE_MAX_NUMA_NODES]; 235 static struct rte_lpm6 *socket_lpm6[RTE_MAX_NUMA_NODES]; 236 237 #ifdef RTE_LIBRTE_IP_FRAG_TBL_STAT 238 #define TX_LCORE_STAT_UPDATE(s, f, v) ((s)->f += (v)) 239 #else 240 #define TX_LCORE_STAT_UPDATE(s, f, v) do {} while (0) 241 #endif /* RTE_LIBRTE_IP_FRAG_TBL_STAT */ 242 243 /* 244 * If number of queued packets reached given threahold, then 245 * send burst of packets on an output interface. 246 */ 247 static inline uint32_t 248 send_burst(struct lcore_queue_conf *qconf, uint32_t thresh, uint16_t port) 249 { 250 uint32_t fill, len, k, n; 251 struct mbuf_table *txmb; 252 253 txmb = qconf->tx_mbufs[port]; 254 len = txmb->len; 255 256 if ((int32_t)(fill = txmb->head - txmb->tail) < 0) 257 fill += len; 258 259 if (fill >= thresh) { 260 n = RTE_MIN(len - txmb->tail, fill); 261 262 k = rte_eth_tx_burst(port, qconf->tx_queue_id[port], 263 txmb->m_table + txmb->tail, (uint16_t)n); 264 265 TX_LCORE_STAT_UPDATE(&qconf->tx_stat, call, 1); 266 TX_LCORE_STAT_UPDATE(&qconf->tx_stat, send, k); 267 268 fill -= k; 269 if ((txmb->tail += k) == len) 270 txmb->tail = 0; 271 } 272 273 return fill; 274 } 275 276 /* Enqueue a single packet, and send burst if queue is filled */ 277 static inline int 278 send_single_packet(struct rte_mbuf *m, uint16_t port) 279 { 280 uint32_t fill, lcore_id, len; 281 struct lcore_queue_conf *qconf; 282 struct mbuf_table *txmb; 283 284 lcore_id = rte_lcore_id(); 285 qconf = &lcore_queue_conf[lcore_id]; 286 287 txmb = qconf->tx_mbufs[port]; 288 len = txmb->len; 289 290 fill = send_burst(qconf, MAX_PKT_BURST, port); 291 292 if (fill == len - 1) { 293 TX_LCORE_STAT_UPDATE(&qconf->tx_stat, drop, 1); 294 rte_pktmbuf_free(txmb->m_table[txmb->tail]); 295 if (++txmb->tail == len) 296 txmb->tail = 0; 297 } 298 299 TX_LCORE_STAT_UPDATE(&qconf->tx_stat, queue, 1); 300 txmb->m_table[txmb->head] = m; 301 if(++txmb->head == len) 302 txmb->head = 0; 303 304 return 0; 305 } 306 307 static inline void 308 reassemble(struct rte_mbuf *m, uint16_t portid, uint32_t queue, 309 struct lcore_queue_conf *qconf, uint64_t tms) 310 { 311 struct ether_hdr *eth_hdr; 312 struct rte_ip_frag_tbl *tbl; 313 struct rte_ip_frag_death_row *dr; 314 struct rx_queue *rxq; 315 void *d_addr_bytes; 316 uint32_t next_hop; 317 uint16_t dst_port; 318 319 rxq = &qconf->rx_queue_list[queue]; 320 321 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *); 322 323 dst_port = portid; 324 325 /* if packet is IPv4 */ 326 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) { 327 struct ipv4_hdr *ip_hdr; 328 uint32_t ip_dst; 329 330 ip_hdr = (struct ipv4_hdr *)(eth_hdr + 1); 331 332 /* if it is a fragmented packet, then try to reassemble. */ 333 if (rte_ipv4_frag_pkt_is_fragmented(ip_hdr)) { 334 struct rte_mbuf *mo; 335 336 tbl = rxq->frag_tbl; 337 dr = &qconf->death_row; 338 339 /* prepare mbuf: setup l2_len/l3_len. */ 340 m->l2_len = sizeof(*eth_hdr); 341 m->l3_len = sizeof(*ip_hdr); 342 343 /* process this fragment. */ 344 mo = rte_ipv4_frag_reassemble_packet(tbl, dr, m, tms, ip_hdr); 345 if (mo == NULL) 346 /* no packet to send out. */ 347 return; 348 349 /* we have our packet reassembled. */ 350 if (mo != m) { 351 m = mo; 352 eth_hdr = rte_pktmbuf_mtod(m, 353 struct ether_hdr *); 354 ip_hdr = (struct ipv4_hdr *)(eth_hdr + 1); 355 } 356 } 357 ip_dst = rte_be_to_cpu_32(ip_hdr->dst_addr); 358 359 /* Find destination port */ 360 if (rte_lpm_lookup(rxq->lpm, ip_dst, &next_hop) == 0 && 361 (enabled_port_mask & 1 << next_hop) != 0) { 362 dst_port = next_hop; 363 } 364 365 eth_hdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv4); 366 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) { 367 /* if packet is IPv6 */ 368 struct ipv6_extension_fragment *frag_hdr; 369 struct ipv6_hdr *ip_hdr; 370 371 ip_hdr = (struct ipv6_hdr *)(eth_hdr + 1); 372 373 frag_hdr = rte_ipv6_frag_get_ipv6_fragment_header(ip_hdr); 374 375 if (frag_hdr != NULL) { 376 struct rte_mbuf *mo; 377 378 tbl = rxq->frag_tbl; 379 dr = &qconf->death_row; 380 381 /* prepare mbuf: setup l2_len/l3_len. */ 382 m->l2_len = sizeof(*eth_hdr); 383 m->l3_len = sizeof(*ip_hdr) + sizeof(*frag_hdr); 384 385 mo = rte_ipv6_frag_reassemble_packet(tbl, dr, m, tms, ip_hdr, frag_hdr); 386 if (mo == NULL) 387 return; 388 389 if (mo != m) { 390 m = mo; 391 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *); 392 ip_hdr = (struct ipv6_hdr *)(eth_hdr + 1); 393 } 394 } 395 396 /* Find destination port */ 397 if (rte_lpm6_lookup(rxq->lpm6, ip_hdr->dst_addr, 398 &next_hop) == 0 && 399 (enabled_port_mask & 1 << next_hop) != 0) { 400 dst_port = next_hop; 401 } 402 403 eth_hdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv6); 404 } 405 /* if packet wasn't IPv4 or IPv6, it's forwarded to the port it came from */ 406 407 /* 02:00:00:00:00:xx */ 408 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; 409 *((uint64_t *)d_addr_bytes) = 0x000000000002 + ((uint64_t)dst_port << 40); 410 411 /* src addr */ 412 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr); 413 414 send_single_packet(m, dst_port); 415 } 416 417 /* main processing loop */ 418 static int 419 main_loop(__attribute__((unused)) void *dummy) 420 { 421 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 422 unsigned lcore_id; 423 uint64_t diff_tsc, cur_tsc, prev_tsc; 424 int i, j, nb_rx; 425 uint16_t portid; 426 struct lcore_queue_conf *qconf; 427 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; 428 429 prev_tsc = 0; 430 431 lcore_id = rte_lcore_id(); 432 qconf = &lcore_queue_conf[lcore_id]; 433 434 if (qconf->n_rx_queue == 0) { 435 RTE_LOG(INFO, IP_RSMBL, "lcore %u has nothing to do\n", lcore_id); 436 return 0; 437 } 438 439 RTE_LOG(INFO, IP_RSMBL, "entering main loop on lcore %u\n", lcore_id); 440 441 for (i = 0; i < qconf->n_rx_queue; i++) { 442 443 portid = qconf->rx_queue_list[i].portid; 444 RTE_LOG(INFO, IP_RSMBL, " -- lcoreid=%u portid=%u\n", lcore_id, 445 portid); 446 } 447 448 while (1) { 449 450 cur_tsc = rte_rdtsc(); 451 452 /* 453 * TX burst queue drain 454 */ 455 diff_tsc = cur_tsc - prev_tsc; 456 if (unlikely(diff_tsc > drain_tsc)) { 457 458 /* 459 * This could be optimized (use queueid instead of 460 * portid), but it is not called so often 461 */ 462 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { 463 if ((enabled_port_mask & (1 << portid)) != 0) 464 send_burst(qconf, 1, portid); 465 } 466 467 prev_tsc = cur_tsc; 468 } 469 470 /* 471 * Read packet from RX queues 472 */ 473 for (i = 0; i < qconf->n_rx_queue; ++i) { 474 475 portid = qconf->rx_queue_list[i].portid; 476 477 nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, 478 MAX_PKT_BURST); 479 480 /* Prefetch first packets */ 481 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) { 482 rte_prefetch0(rte_pktmbuf_mtod( 483 pkts_burst[j], void *)); 484 } 485 486 /* Prefetch and forward already prefetched packets */ 487 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) { 488 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[ 489 j + PREFETCH_OFFSET], void *)); 490 reassemble(pkts_burst[j], portid, 491 i, qconf, cur_tsc); 492 } 493 494 /* Forward remaining prefetched packets */ 495 for (; j < nb_rx; j++) { 496 reassemble(pkts_burst[j], portid, 497 i, qconf, cur_tsc); 498 } 499 500 rte_ip_frag_free_death_row(&qconf->death_row, 501 PREFETCH_OFFSET); 502 } 503 } 504 } 505 506 /* display usage */ 507 static void 508 print_usage(const char *prgname) 509 { 510 printf("%s [EAL options] -- -p PORTMASK [-q NQ]" 511 " [--max-pkt-len PKTLEN]" 512 " [--maxflows=<flows>] [--flowttl=<ttl>[(s|ms)]]\n" 513 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 514 " -q NQ: number of RX queues per lcore\n" 515 " --maxflows=<flows>: optional, maximum number of flows " 516 "supported\n" 517 " --flowttl=<ttl>[(s|ms)]: optional, maximum TTL for each " 518 "flow\n", 519 prgname); 520 } 521 522 static uint32_t 523 parse_flow_num(const char *str, uint32_t min, uint32_t max, uint32_t *val) 524 { 525 char *end; 526 uint64_t v; 527 528 /* parse decimal string */ 529 errno = 0; 530 v = strtoul(str, &end, 10); 531 if (errno != 0 || *end != '\0') 532 return -EINVAL; 533 534 if (v < min || v > max) 535 return -EINVAL; 536 537 *val = (uint32_t)v; 538 return 0; 539 } 540 541 static int 542 parse_flow_ttl(const char *str, uint32_t min, uint32_t max, uint32_t *val) 543 { 544 char *end; 545 uint64_t v; 546 547 static const char frmt_sec[] = "s"; 548 static const char frmt_msec[] = "ms"; 549 550 /* parse decimal string */ 551 errno = 0; 552 v = strtoul(str, &end, 10); 553 if (errno != 0) 554 return -EINVAL; 555 556 if (*end != '\0') { 557 if (strncmp(frmt_sec, end, sizeof(frmt_sec)) == 0) 558 v *= MS_PER_S; 559 else if (strncmp(frmt_msec, end, sizeof (frmt_msec)) != 0) 560 return -EINVAL; 561 } 562 563 if (v < min || v > max) 564 return -EINVAL; 565 566 *val = (uint32_t)v; 567 return 0; 568 } 569 570 static int 571 parse_portmask(const char *portmask) 572 { 573 char *end = NULL; 574 unsigned long pm; 575 576 /* parse hexadecimal string */ 577 pm = strtoul(portmask, &end, 16); 578 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 579 return -1; 580 581 if (pm == 0) 582 return -1; 583 584 return pm; 585 } 586 587 static int 588 parse_nqueue(const char *q_arg) 589 { 590 char *end = NULL; 591 unsigned long n; 592 593 printf("%p\n", q_arg); 594 595 /* parse hexadecimal string */ 596 n = strtoul(q_arg, &end, 10); 597 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 598 return -1; 599 if (n == 0) 600 return -1; 601 if (n >= MAX_RX_QUEUE_PER_LCORE) 602 return -1; 603 604 return n; 605 } 606 607 /* Parse the argument given in the command line of the application */ 608 static int 609 parse_args(int argc, char **argv) 610 { 611 int opt, ret; 612 char **argvopt; 613 int option_index; 614 char *prgname = argv[0]; 615 static struct option lgopts[] = { 616 {"max-pkt-len", 1, 0, 0}, 617 {"maxflows", 1, 0, 0}, 618 {"flowttl", 1, 0, 0}, 619 {NULL, 0, 0, 0} 620 }; 621 622 argvopt = argv; 623 624 while ((opt = getopt_long(argc, argvopt, "p:q:", 625 lgopts, &option_index)) != EOF) { 626 627 switch (opt) { 628 /* portmask */ 629 case 'p': 630 enabled_port_mask = parse_portmask(optarg); 631 if (enabled_port_mask == 0) { 632 printf("invalid portmask\n"); 633 print_usage(prgname); 634 return -1; 635 } 636 break; 637 638 /* nqueue */ 639 case 'q': 640 rx_queue_per_lcore = parse_nqueue(optarg); 641 if (rx_queue_per_lcore < 0) { 642 printf("invalid queue number\n"); 643 print_usage(prgname); 644 return -1; 645 } 646 break; 647 648 /* long options */ 649 case 0: 650 if (!strncmp(lgopts[option_index].name, 651 "maxflows", 8)) { 652 if ((ret = parse_flow_num(optarg, MIN_FLOW_NUM, 653 MAX_FLOW_NUM, 654 &max_flow_num)) != 0) { 655 printf("invalid value: \"%s\" for " 656 "parameter %s\n", 657 optarg, 658 lgopts[option_index].name); 659 print_usage(prgname); 660 return ret; 661 } 662 } 663 664 if (!strncmp(lgopts[option_index].name, "flowttl", 7)) { 665 if ((ret = parse_flow_ttl(optarg, MIN_FLOW_TTL, 666 MAX_FLOW_TTL, 667 &max_flow_ttl)) != 0) { 668 printf("invalid value: \"%s\" for " 669 "parameter %s\n", 670 optarg, 671 lgopts[option_index].name); 672 print_usage(prgname); 673 return ret; 674 } 675 } 676 677 break; 678 679 default: 680 print_usage(prgname); 681 return -1; 682 } 683 } 684 685 if (optind >= 0) 686 argv[optind-1] = prgname; 687 688 ret = optind-1; 689 optind = 1; /* reset getopt lib */ 690 return ret; 691 } 692 693 static void 694 print_ethaddr(const char *name, const struct ether_addr *eth_addr) 695 { 696 char buf[ETHER_ADDR_FMT_SIZE]; 697 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); 698 printf("%s%s", name, buf); 699 } 700 701 /* Check the link status of all ports in up to 9s, and print them finally */ 702 static void 703 check_all_ports_link_status(uint32_t port_mask) 704 { 705 #define CHECK_INTERVAL 100 /* 100ms */ 706 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 707 uint16_t portid; 708 uint8_t count, all_ports_up, print_flag = 0; 709 struct rte_eth_link link; 710 711 printf("\nChecking link status"); 712 fflush(stdout); 713 for (count = 0; count <= MAX_CHECK_TIME; count++) { 714 all_ports_up = 1; 715 RTE_ETH_FOREACH_DEV(portid) { 716 if ((port_mask & (1 << portid)) == 0) 717 continue; 718 memset(&link, 0, sizeof(link)); 719 rte_eth_link_get_nowait(portid, &link); 720 /* print link status if flag set */ 721 if (print_flag == 1) { 722 if (link.link_status) 723 printf( 724 "Port%d Link Up. Speed %u Mbps - %s\n", 725 portid, link.link_speed, 726 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 727 ("full-duplex") : ("half-duplex\n")); 728 else 729 printf("Port %d Link Down\n", portid); 730 continue; 731 } 732 /* clear all_ports_up flag if any link down */ 733 if (link.link_status == ETH_LINK_DOWN) { 734 all_ports_up = 0; 735 break; 736 } 737 } 738 /* after finally printing all link status, get out */ 739 if (print_flag == 1) 740 break; 741 742 if (all_ports_up == 0) { 743 printf("."); 744 fflush(stdout); 745 rte_delay_ms(CHECK_INTERVAL); 746 } 747 748 /* set the print_flag if all ports up or timeout */ 749 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 750 print_flag = 1; 751 printf("\ndone\n"); 752 } 753 } 754 } 755 756 static int 757 init_routing_table(void) 758 { 759 struct rte_lpm *lpm; 760 struct rte_lpm6 *lpm6; 761 int socket, ret; 762 unsigned i; 763 764 for (socket = 0; socket < RTE_MAX_NUMA_NODES; socket++) { 765 if (socket_lpm[socket]) { 766 lpm = socket_lpm[socket]; 767 /* populate the LPM table */ 768 for (i = 0; i < RTE_DIM(l3fwd_ipv4_route_array); i++) { 769 ret = rte_lpm_add(lpm, 770 l3fwd_ipv4_route_array[i].ip, 771 l3fwd_ipv4_route_array[i].depth, 772 l3fwd_ipv4_route_array[i].if_out); 773 774 if (ret < 0) { 775 RTE_LOG(ERR, IP_RSMBL, "Unable to add entry %i to the l3fwd " 776 "LPM table\n", i); 777 return -1; 778 } 779 780 RTE_LOG(INFO, IP_RSMBL, "Socket %i: adding route " IPv4_BYTES_FMT 781 "/%d (port %d)\n", 782 socket, 783 IPv4_BYTES(l3fwd_ipv4_route_array[i].ip), 784 l3fwd_ipv4_route_array[i].depth, 785 l3fwd_ipv4_route_array[i].if_out); 786 } 787 } 788 789 if (socket_lpm6[socket]) { 790 lpm6 = socket_lpm6[socket]; 791 /* populate the LPM6 table */ 792 for (i = 0; i < RTE_DIM(l3fwd_ipv6_route_array); i++) { 793 ret = rte_lpm6_add(lpm6, 794 l3fwd_ipv6_route_array[i].ip, 795 l3fwd_ipv6_route_array[i].depth, 796 l3fwd_ipv6_route_array[i].if_out); 797 798 if (ret < 0) { 799 RTE_LOG(ERR, IP_RSMBL, "Unable to add entry %i to the l3fwd " 800 "LPM6 table\n", i); 801 return -1; 802 } 803 804 RTE_LOG(INFO, IP_RSMBL, "Socket %i: adding route " IPv6_BYTES_FMT 805 "/%d (port %d)\n", 806 socket, 807 IPv6_BYTES(l3fwd_ipv6_route_array[i].ip), 808 l3fwd_ipv6_route_array[i].depth, 809 l3fwd_ipv6_route_array[i].if_out); 810 } 811 } 812 } 813 return 0; 814 } 815 816 static int 817 setup_port_tbl(struct lcore_queue_conf *qconf, uint32_t lcore, int socket, 818 uint32_t port) 819 { 820 struct mbuf_table *mtb; 821 uint32_t n; 822 size_t sz; 823 824 n = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST); 825 sz = sizeof (*mtb) + sizeof (mtb->m_table[0]) * n; 826 827 if ((mtb = rte_zmalloc_socket(__func__, sz, RTE_CACHE_LINE_SIZE, 828 socket)) == NULL) { 829 RTE_LOG(ERR, IP_RSMBL, "%s() for lcore: %u, port: %u " 830 "failed to allocate %zu bytes\n", 831 __func__, lcore, port, sz); 832 return -1; 833 } 834 835 mtb->len = n; 836 qconf->tx_mbufs[port] = mtb; 837 838 return 0; 839 } 840 841 static int 842 setup_queue_tbl(struct rx_queue *rxq, uint32_t lcore, uint32_t queue) 843 { 844 int socket; 845 uint32_t nb_mbuf; 846 uint64_t frag_cycles; 847 char buf[RTE_MEMPOOL_NAMESIZE]; 848 849 socket = rte_lcore_to_socket_id(lcore); 850 if (socket == SOCKET_ID_ANY) 851 socket = 0; 852 853 frag_cycles = (rte_get_tsc_hz() + MS_PER_S - 1) / MS_PER_S * 854 max_flow_ttl; 855 856 if ((rxq->frag_tbl = rte_ip_frag_table_create(max_flow_num, 857 IP_FRAG_TBL_BUCKET_ENTRIES, max_flow_num, frag_cycles, 858 socket)) == NULL) { 859 RTE_LOG(ERR, IP_RSMBL, "ip_frag_tbl_create(%u) on " 860 "lcore: %u for queue: %u failed\n", 861 max_flow_num, lcore, queue); 862 return -1; 863 } 864 865 /* 866 * At any given moment up to <max_flow_num * (MAX_FRAG_NUM)> 867 * mbufs could be stored int the fragment table. 868 * Plus, each TX queue can hold up to <max_flow_num> packets. 869 */ 870 871 nb_mbuf = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST) * MAX_FRAG_NUM; 872 nb_mbuf *= (port_conf.rxmode.max_rx_pkt_len + BUF_SIZE - 1) / BUF_SIZE; 873 nb_mbuf *= 2; /* ipv4 and ipv6 */ 874 nb_mbuf += nb_rxd + nb_txd; 875 876 nb_mbuf = RTE_MAX(nb_mbuf, (uint32_t)NB_MBUF); 877 878 snprintf(buf, sizeof(buf), "mbuf_pool_%u_%u", lcore, queue); 879 880 rxq->pool = rte_pktmbuf_pool_create(buf, nb_mbuf, MEMPOOL_CACHE_SIZE, 0, 881 MBUF_DATA_SIZE, socket); 882 if (rxq->pool == NULL) { 883 RTE_LOG(ERR, IP_RSMBL, 884 "rte_pktmbuf_pool_create(%s) failed", buf); 885 return -1; 886 } 887 888 return 0; 889 } 890 891 static int 892 init_mem(void) 893 { 894 char buf[PATH_MAX]; 895 struct rte_lpm *lpm; 896 struct rte_lpm6 *lpm6; 897 struct rte_lpm_config lpm_config; 898 int socket; 899 unsigned lcore_id; 900 901 /* traverse through lcores and initialize structures on each socket */ 902 903 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 904 905 if (rte_lcore_is_enabled(lcore_id) == 0) 906 continue; 907 908 socket = rte_lcore_to_socket_id(lcore_id); 909 910 if (socket == SOCKET_ID_ANY) 911 socket = 0; 912 913 if (socket_lpm[socket] == NULL) { 914 RTE_LOG(INFO, IP_RSMBL, "Creating LPM table on socket %i\n", socket); 915 snprintf(buf, sizeof(buf), "IP_RSMBL_LPM_%i", socket); 916 917 lpm_config.max_rules = LPM_MAX_RULES; 918 lpm_config.number_tbl8s = 256; 919 lpm_config.flags = 0; 920 921 lpm = rte_lpm_create(buf, socket, &lpm_config); 922 if (lpm == NULL) { 923 RTE_LOG(ERR, IP_RSMBL, "Cannot create LPM table\n"); 924 return -1; 925 } 926 socket_lpm[socket] = lpm; 927 } 928 929 if (socket_lpm6[socket] == NULL) { 930 RTE_LOG(INFO, IP_RSMBL, "Creating LPM6 table on socket %i\n", socket); 931 snprintf(buf, sizeof(buf), "IP_RSMBL_LPM_%i", socket); 932 933 lpm6 = rte_lpm6_create(buf, socket, &lpm6_config); 934 if (lpm6 == NULL) { 935 RTE_LOG(ERR, IP_RSMBL, "Cannot create LPM table\n"); 936 return -1; 937 } 938 socket_lpm6[socket] = lpm6; 939 } 940 } 941 942 return 0; 943 } 944 945 static void 946 queue_dump_stat(void) 947 { 948 uint32_t i, lcore; 949 const struct lcore_queue_conf *qconf; 950 951 for (lcore = 0; lcore < RTE_MAX_LCORE; lcore++) { 952 if (rte_lcore_is_enabled(lcore) == 0) 953 continue; 954 955 qconf = &lcore_queue_conf[lcore]; 956 for (i = 0; i < qconf->n_rx_queue; i++) { 957 958 fprintf(stdout, " -- lcoreid=%u portid=%u " 959 "frag tbl stat:\n", 960 lcore, qconf->rx_queue_list[i].portid); 961 rte_ip_frag_table_statistics_dump(stdout, 962 qconf->rx_queue_list[i].frag_tbl); 963 fprintf(stdout, "TX bursts:\t%" PRIu64 "\n" 964 "TX packets _queued:\t%" PRIu64 "\n" 965 "TX packets dropped:\t%" PRIu64 "\n" 966 "TX packets send:\t%" PRIu64 "\n", 967 qconf->tx_stat.call, 968 qconf->tx_stat.queue, 969 qconf->tx_stat.drop, 970 qconf->tx_stat.send); 971 } 972 } 973 } 974 975 static void 976 signal_handler(int signum) 977 { 978 queue_dump_stat(); 979 if (signum != SIGUSR1) 980 rte_exit(0, "received signal: %d, exiting\n", signum); 981 } 982 983 int 984 main(int argc, char **argv) 985 { 986 struct lcore_queue_conf *qconf; 987 struct rte_eth_dev_info dev_info; 988 struct rte_eth_txconf *txconf; 989 struct rx_queue *rxq; 990 int ret, socket; 991 unsigned nb_ports; 992 uint16_t queueid; 993 unsigned lcore_id = 0, rx_lcore_id = 0; 994 uint32_t n_tx_queue, nb_lcores; 995 uint16_t portid; 996 997 /* init EAL */ 998 ret = rte_eal_init(argc, argv); 999 if (ret < 0) 1000 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n"); 1001 argc -= ret; 1002 argv += ret; 1003 1004 /* parse application arguments (after the EAL ones) */ 1005 ret = parse_args(argc, argv); 1006 if (ret < 0) 1007 rte_exit(EXIT_FAILURE, "Invalid IP reassembly parameters\n"); 1008 1009 nb_ports = rte_eth_dev_count_avail(); 1010 if (nb_ports == 0) 1011 rte_exit(EXIT_FAILURE, "No ports found!\n"); 1012 1013 nb_lcores = rte_lcore_count(); 1014 1015 /* initialize structures (mempools, lpm etc.) */ 1016 if (init_mem() < 0) 1017 rte_panic("Cannot initialize memory structures!\n"); 1018 1019 /* check if portmask has non-existent ports */ 1020 if (enabled_port_mask & ~(RTE_LEN2MASK(nb_ports, unsigned))) 1021 rte_exit(EXIT_FAILURE, "Non-existent ports in portmask!\n"); 1022 1023 /* initialize all ports */ 1024 RTE_ETH_FOREACH_DEV(portid) { 1025 struct rte_eth_rxconf rxq_conf; 1026 struct rte_eth_conf local_port_conf = port_conf; 1027 1028 /* skip ports that are not enabled */ 1029 if ((enabled_port_mask & (1 << portid)) == 0) { 1030 printf("\nSkipping disabled port %d\n", portid); 1031 continue; 1032 } 1033 1034 qconf = &lcore_queue_conf[rx_lcore_id]; 1035 1036 /* limit the frame size to the maximum supported by NIC */ 1037 rte_eth_dev_info_get(portid, &dev_info); 1038 local_port_conf.rxmode.max_rx_pkt_len = RTE_MIN( 1039 dev_info.max_rx_pktlen, 1040 local_port_conf.rxmode.max_rx_pkt_len); 1041 1042 /* get the lcore_id for this port */ 1043 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 1044 qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) { 1045 1046 rx_lcore_id++; 1047 if (rx_lcore_id >= RTE_MAX_LCORE) 1048 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 1049 1050 qconf = &lcore_queue_conf[rx_lcore_id]; 1051 } 1052 1053 socket = rte_lcore_to_socket_id(portid); 1054 if (socket == SOCKET_ID_ANY) 1055 socket = 0; 1056 1057 queueid = qconf->n_rx_queue; 1058 rxq = &qconf->rx_queue_list[queueid]; 1059 rxq->portid = portid; 1060 rxq->lpm = socket_lpm[socket]; 1061 rxq->lpm6 = socket_lpm6[socket]; 1062 1063 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 1064 &nb_txd); 1065 if (ret < 0) 1066 rte_exit(EXIT_FAILURE, 1067 "Cannot adjust number of descriptors: err=%d, port=%d\n", 1068 ret, portid); 1069 1070 if (setup_queue_tbl(rxq, rx_lcore_id, queueid) < 0) 1071 rte_exit(EXIT_FAILURE, "Failed to set up queue table\n"); 1072 qconf->n_rx_queue++; 1073 1074 /* init port */ 1075 printf("Initializing port %d ... ", portid ); 1076 fflush(stdout); 1077 1078 n_tx_queue = nb_lcores; 1079 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT) 1080 n_tx_queue = MAX_TX_QUEUE_PER_PORT; 1081 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 1082 local_port_conf.txmode.offloads |= 1083 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 1084 1085 local_port_conf.rx_adv_conf.rss_conf.rss_hf &= 1086 dev_info.flow_type_rss_offloads; 1087 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf != 1088 port_conf.rx_adv_conf.rss_conf.rss_hf) { 1089 printf("Port %u modified RSS hash function based on hardware support," 1090 "requested:%#"PRIx64" configured:%#"PRIx64"\n", 1091 portid, 1092 port_conf.rx_adv_conf.rss_conf.rss_hf, 1093 local_port_conf.rx_adv_conf.rss_conf.rss_hf); 1094 } 1095 1096 ret = rte_eth_dev_configure(portid, 1, (uint16_t)n_tx_queue, 1097 &local_port_conf); 1098 if (ret < 0) { 1099 printf("\n"); 1100 rte_exit(EXIT_FAILURE, "Cannot configure device: " 1101 "err=%d, port=%d\n", 1102 ret, portid); 1103 } 1104 1105 /* init one RX queue */ 1106 rxq_conf = dev_info.default_rxconf; 1107 rxq_conf.offloads = local_port_conf.rxmode.offloads; 1108 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 1109 socket, &rxq_conf, 1110 rxq->pool); 1111 if (ret < 0) { 1112 printf("\n"); 1113 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: " 1114 "err=%d, port=%d\n", 1115 ret, portid); 1116 } 1117 1118 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]); 1119 print_ethaddr(" Address:", &ports_eth_addr[portid]); 1120 printf("\n"); 1121 1122 /* init one TX queue per couple (lcore,port) */ 1123 queueid = 0; 1124 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1125 if (rte_lcore_is_enabled(lcore_id) == 0) 1126 continue; 1127 1128 socket = (int) rte_lcore_to_socket_id(lcore_id); 1129 1130 printf("txq=%u,%d,%d ", lcore_id, queueid, socket); 1131 fflush(stdout); 1132 1133 txconf = &dev_info.default_txconf; 1134 txconf->offloads = local_port_conf.txmode.offloads; 1135 1136 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd, 1137 socket, txconf); 1138 if (ret < 0) 1139 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, " 1140 "port=%d\n", ret, portid); 1141 1142 qconf = &lcore_queue_conf[lcore_id]; 1143 qconf->tx_queue_id[portid] = queueid; 1144 setup_port_tbl(qconf, lcore_id, socket, portid); 1145 queueid++; 1146 } 1147 printf("\n"); 1148 } 1149 1150 printf("\n"); 1151 1152 /* start ports */ 1153 RTE_ETH_FOREACH_DEV(portid) { 1154 if ((enabled_port_mask & (1 << portid)) == 0) { 1155 continue; 1156 } 1157 /* Start device */ 1158 ret = rte_eth_dev_start(portid); 1159 if (ret < 0) 1160 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n", 1161 ret, portid); 1162 1163 rte_eth_promiscuous_enable(portid); 1164 } 1165 1166 if (init_routing_table() < 0) 1167 rte_exit(EXIT_FAILURE, "Cannot init routing table\n"); 1168 1169 check_all_ports_link_status(enabled_port_mask); 1170 1171 signal(SIGUSR1, signal_handler); 1172 signal(SIGTERM, signal_handler); 1173 signal(SIGINT, signal_handler); 1174 1175 /* launch per-lcore init on every lcore */ 1176 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER); 1177 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 1178 if (rte_eal_wait_lcore(lcore_id) < 0) 1179 return -1; 1180 } 1181 1182 return 0; 1183 } 1184