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 rte_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 {RTE_IPv4(100,10,0,0), 16, 0}, 194 {RTE_IPv4(100,20,0,0), 16, 1}, 195 {RTE_IPv4(100,30,0,0), 16, 2}, 196 {RTE_IPv4(100,40,0,0), 16, 3}, 197 {RTE_IPv4(100,50,0,0), 16, 4}, 198 {RTE_IPv4(100,60,0,0), 16, 5}, 199 {RTE_IPv4(100,70,0,0), 16, 6}, 200 {RTE_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 rte_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 rte_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 rte_ipv4_hdr *ip_hdr; 328 uint32_t ip_dst; 329 330 ip_hdr = (struct rte_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 rte_ether_hdr *); 354 ip_hdr = (struct rte_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(RTE_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 rte_ipv6_hdr *ip_hdr; 370 371 ip_hdr = (struct rte_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, 392 struct rte_ether_hdr *); 393 ip_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1); 394 } 395 } 396 397 /* Find destination port */ 398 if (rte_lpm6_lookup(rxq->lpm6, ip_hdr->dst_addr, 399 &next_hop) == 0 && 400 (enabled_port_mask & 1 << next_hop) != 0) { 401 dst_port = next_hop; 402 } 403 404 eth_hdr->ether_type = rte_be_to_cpu_16(RTE_ETHER_TYPE_IPv6); 405 } 406 /* if packet wasn't IPv4 or IPv6, it's forwarded to the port it came from */ 407 408 /* 02:00:00:00:00:xx */ 409 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; 410 *((uint64_t *)d_addr_bytes) = 0x000000000002 + ((uint64_t)dst_port << 40); 411 412 /* src addr */ 413 rte_ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr); 414 415 send_single_packet(m, dst_port); 416 } 417 418 /* main processing loop */ 419 static int 420 main_loop(__attribute__((unused)) void *dummy) 421 { 422 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 423 unsigned lcore_id; 424 uint64_t diff_tsc, cur_tsc, prev_tsc; 425 int i, j, nb_rx; 426 uint16_t portid; 427 struct lcore_queue_conf *qconf; 428 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; 429 430 prev_tsc = 0; 431 432 lcore_id = rte_lcore_id(); 433 qconf = &lcore_queue_conf[lcore_id]; 434 435 if (qconf->n_rx_queue == 0) { 436 RTE_LOG(INFO, IP_RSMBL, "lcore %u has nothing to do\n", lcore_id); 437 return 0; 438 } 439 440 RTE_LOG(INFO, IP_RSMBL, "entering main loop on lcore %u\n", lcore_id); 441 442 for (i = 0; i < qconf->n_rx_queue; i++) { 443 444 portid = qconf->rx_queue_list[i].portid; 445 RTE_LOG(INFO, IP_RSMBL, " -- lcoreid=%u portid=%u\n", lcore_id, 446 portid); 447 } 448 449 while (1) { 450 451 cur_tsc = rte_rdtsc(); 452 453 /* 454 * TX burst queue drain 455 */ 456 diff_tsc = cur_tsc - prev_tsc; 457 if (unlikely(diff_tsc > drain_tsc)) { 458 459 /* 460 * This could be optimized (use queueid instead of 461 * portid), but it is not called so often 462 */ 463 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { 464 if ((enabled_port_mask & (1 << portid)) != 0) 465 send_burst(qconf, 1, portid); 466 } 467 468 prev_tsc = cur_tsc; 469 } 470 471 /* 472 * Read packet from RX queues 473 */ 474 for (i = 0; i < qconf->n_rx_queue; ++i) { 475 476 portid = qconf->rx_queue_list[i].portid; 477 478 nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, 479 MAX_PKT_BURST); 480 481 /* Prefetch first packets */ 482 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) { 483 rte_prefetch0(rte_pktmbuf_mtod( 484 pkts_burst[j], void *)); 485 } 486 487 /* Prefetch and forward already prefetched packets */ 488 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) { 489 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[ 490 j + PREFETCH_OFFSET], void *)); 491 reassemble(pkts_burst[j], portid, 492 i, qconf, cur_tsc); 493 } 494 495 /* Forward remaining prefetched packets */ 496 for (; j < nb_rx; j++) { 497 reassemble(pkts_burst[j], portid, 498 i, qconf, cur_tsc); 499 } 500 501 rte_ip_frag_free_death_row(&qconf->death_row, 502 PREFETCH_OFFSET); 503 } 504 } 505 } 506 507 /* display usage */ 508 static void 509 print_usage(const char *prgname) 510 { 511 printf("%s [EAL options] -- -p PORTMASK [-q NQ]" 512 " [--max-pkt-len PKTLEN]" 513 " [--maxflows=<flows>] [--flowttl=<ttl>[(s|ms)]]\n" 514 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 515 " -q NQ: number of RX queues per lcore\n" 516 " --maxflows=<flows>: optional, maximum number of flows " 517 "supported\n" 518 " --flowttl=<ttl>[(s|ms)]: optional, maximum TTL for each " 519 "flow\n", 520 prgname); 521 } 522 523 static uint32_t 524 parse_flow_num(const char *str, uint32_t min, uint32_t max, uint32_t *val) 525 { 526 char *end; 527 uint64_t v; 528 529 /* parse decimal string */ 530 errno = 0; 531 v = strtoul(str, &end, 10); 532 if (errno != 0 || *end != '\0') 533 return -EINVAL; 534 535 if (v < min || v > max) 536 return -EINVAL; 537 538 *val = (uint32_t)v; 539 return 0; 540 } 541 542 static int 543 parse_flow_ttl(const char *str, uint32_t min, uint32_t max, uint32_t *val) 544 { 545 char *end; 546 uint64_t v; 547 548 static const char frmt_sec[] = "s"; 549 static const char frmt_msec[] = "ms"; 550 551 /* parse decimal string */ 552 errno = 0; 553 v = strtoul(str, &end, 10); 554 if (errno != 0) 555 return -EINVAL; 556 557 if (*end != '\0') { 558 if (strncmp(frmt_sec, end, sizeof(frmt_sec)) == 0) 559 v *= MS_PER_S; 560 else if (strncmp(frmt_msec, end, sizeof (frmt_msec)) != 0) 561 return -EINVAL; 562 } 563 564 if (v < min || v > max) 565 return -EINVAL; 566 567 *val = (uint32_t)v; 568 return 0; 569 } 570 571 static int 572 parse_portmask(const char *portmask) 573 { 574 char *end = NULL; 575 unsigned long pm; 576 577 /* parse hexadecimal string */ 578 pm = strtoul(portmask, &end, 16); 579 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 580 return -1; 581 582 if (pm == 0) 583 return -1; 584 585 return pm; 586 } 587 588 static int 589 parse_nqueue(const char *q_arg) 590 { 591 char *end = NULL; 592 unsigned long n; 593 594 printf("%p\n", q_arg); 595 596 /* parse hexadecimal string */ 597 n = strtoul(q_arg, &end, 10); 598 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) 599 return -1; 600 if (n == 0) 601 return -1; 602 if (n >= MAX_RX_QUEUE_PER_LCORE) 603 return -1; 604 605 return n; 606 } 607 608 /* Parse the argument given in the command line of the application */ 609 static int 610 parse_args(int argc, char **argv) 611 { 612 int opt, ret; 613 char **argvopt; 614 int option_index; 615 char *prgname = argv[0]; 616 static struct option lgopts[] = { 617 {"max-pkt-len", 1, 0, 0}, 618 {"maxflows", 1, 0, 0}, 619 {"flowttl", 1, 0, 0}, 620 {NULL, 0, 0, 0} 621 }; 622 623 argvopt = argv; 624 625 while ((opt = getopt_long(argc, argvopt, "p:q:", 626 lgopts, &option_index)) != EOF) { 627 628 switch (opt) { 629 /* portmask */ 630 case 'p': 631 enabled_port_mask = parse_portmask(optarg); 632 if (enabled_port_mask == 0) { 633 printf("invalid portmask\n"); 634 print_usage(prgname); 635 return -1; 636 } 637 break; 638 639 /* nqueue */ 640 case 'q': 641 rx_queue_per_lcore = parse_nqueue(optarg); 642 if (rx_queue_per_lcore < 0) { 643 printf("invalid queue number\n"); 644 print_usage(prgname); 645 return -1; 646 } 647 break; 648 649 /* long options */ 650 case 0: 651 if (!strncmp(lgopts[option_index].name, 652 "maxflows", 8)) { 653 if ((ret = parse_flow_num(optarg, MIN_FLOW_NUM, 654 MAX_FLOW_NUM, 655 &max_flow_num)) != 0) { 656 printf("invalid value: \"%s\" for " 657 "parameter %s\n", 658 optarg, 659 lgopts[option_index].name); 660 print_usage(prgname); 661 return ret; 662 } 663 } 664 665 if (!strncmp(lgopts[option_index].name, "flowttl", 7)) { 666 if ((ret = parse_flow_ttl(optarg, MIN_FLOW_TTL, 667 MAX_FLOW_TTL, 668 &max_flow_ttl)) != 0) { 669 printf("invalid value: \"%s\" for " 670 "parameter %s\n", 671 optarg, 672 lgopts[option_index].name); 673 print_usage(prgname); 674 return ret; 675 } 676 } 677 678 break; 679 680 default: 681 print_usage(prgname); 682 return -1; 683 } 684 } 685 686 if (optind >= 0) 687 argv[optind-1] = prgname; 688 689 ret = optind-1; 690 optind = 1; /* reset getopt lib */ 691 return ret; 692 } 693 694 static void 695 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr) 696 { 697 char buf[RTE_ETHER_ADDR_FMT_SIZE]; 698 rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr); 699 printf("%s%s", name, buf); 700 } 701 702 /* Check the link status of all ports in up to 9s, and print them finally */ 703 static void 704 check_all_ports_link_status(uint32_t port_mask) 705 { 706 #define CHECK_INTERVAL 100 /* 100ms */ 707 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 708 uint16_t portid; 709 uint8_t count, all_ports_up, print_flag = 0; 710 struct rte_eth_link link; 711 712 printf("\nChecking link status"); 713 fflush(stdout); 714 for (count = 0; count <= MAX_CHECK_TIME; count++) { 715 all_ports_up = 1; 716 RTE_ETH_FOREACH_DEV(portid) { 717 if ((port_mask & (1 << portid)) == 0) 718 continue; 719 memset(&link, 0, sizeof(link)); 720 rte_eth_link_get_nowait(portid, &link); 721 /* print link status if flag set */ 722 if (print_flag == 1) { 723 if (link.link_status) 724 printf( 725 "Port%d Link Up. Speed %u Mbps - %s\n", 726 portid, link.link_speed, 727 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 728 ("full-duplex") : ("half-duplex\n")); 729 else 730 printf("Port %d Link Down\n", portid); 731 continue; 732 } 733 /* clear all_ports_up flag if any link down */ 734 if (link.link_status == ETH_LINK_DOWN) { 735 all_ports_up = 0; 736 break; 737 } 738 } 739 /* after finally printing all link status, get out */ 740 if (print_flag == 1) 741 break; 742 743 if (all_ports_up == 0) { 744 printf("."); 745 fflush(stdout); 746 rte_delay_ms(CHECK_INTERVAL); 747 } 748 749 /* set the print_flag if all ports up or timeout */ 750 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 751 print_flag = 1; 752 printf("\ndone\n"); 753 } 754 } 755 } 756 757 static int 758 init_routing_table(void) 759 { 760 struct rte_lpm *lpm; 761 struct rte_lpm6 *lpm6; 762 int socket, ret; 763 unsigned i; 764 765 for (socket = 0; socket < RTE_MAX_NUMA_NODES; socket++) { 766 if (socket_lpm[socket]) { 767 lpm = socket_lpm[socket]; 768 /* populate the LPM table */ 769 for (i = 0; i < RTE_DIM(l3fwd_ipv4_route_array); i++) { 770 ret = rte_lpm_add(lpm, 771 l3fwd_ipv4_route_array[i].ip, 772 l3fwd_ipv4_route_array[i].depth, 773 l3fwd_ipv4_route_array[i].if_out); 774 775 if (ret < 0) { 776 RTE_LOG(ERR, IP_RSMBL, "Unable to add entry %i to the l3fwd " 777 "LPM table\n", i); 778 return -1; 779 } 780 781 RTE_LOG(INFO, IP_RSMBL, "Socket %i: adding route " IPv4_BYTES_FMT 782 "/%d (port %d)\n", 783 socket, 784 IPv4_BYTES(l3fwd_ipv4_route_array[i].ip), 785 l3fwd_ipv4_route_array[i].depth, 786 l3fwd_ipv4_route_array[i].if_out); 787 } 788 } 789 790 if (socket_lpm6[socket]) { 791 lpm6 = socket_lpm6[socket]; 792 /* populate the LPM6 table */ 793 for (i = 0; i < RTE_DIM(l3fwd_ipv6_route_array); i++) { 794 ret = rte_lpm6_add(lpm6, 795 l3fwd_ipv6_route_array[i].ip, 796 l3fwd_ipv6_route_array[i].depth, 797 l3fwd_ipv6_route_array[i].if_out); 798 799 if (ret < 0) { 800 RTE_LOG(ERR, IP_RSMBL, "Unable to add entry %i to the l3fwd " 801 "LPM6 table\n", i); 802 return -1; 803 } 804 805 RTE_LOG(INFO, IP_RSMBL, "Socket %i: adding route " IPv6_BYTES_FMT 806 "/%d (port %d)\n", 807 socket, 808 IPv6_BYTES(l3fwd_ipv6_route_array[i].ip), 809 l3fwd_ipv6_route_array[i].depth, 810 l3fwd_ipv6_route_array[i].if_out); 811 } 812 } 813 } 814 return 0; 815 } 816 817 static int 818 setup_port_tbl(struct lcore_queue_conf *qconf, uint32_t lcore, int socket, 819 uint32_t port) 820 { 821 struct mbuf_table *mtb; 822 uint32_t n; 823 size_t sz; 824 825 n = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST); 826 sz = sizeof (*mtb) + sizeof (mtb->m_table[0]) * n; 827 828 if ((mtb = rte_zmalloc_socket(__func__, sz, RTE_CACHE_LINE_SIZE, 829 socket)) == NULL) { 830 RTE_LOG(ERR, IP_RSMBL, "%s() for lcore: %u, port: %u " 831 "failed to allocate %zu bytes\n", 832 __func__, lcore, port, sz); 833 return -1; 834 } 835 836 mtb->len = n; 837 qconf->tx_mbufs[port] = mtb; 838 839 return 0; 840 } 841 842 static int 843 setup_queue_tbl(struct rx_queue *rxq, uint32_t lcore, uint32_t queue) 844 { 845 int socket; 846 uint32_t nb_mbuf; 847 uint64_t frag_cycles; 848 char buf[RTE_MEMPOOL_NAMESIZE]; 849 850 socket = rte_lcore_to_socket_id(lcore); 851 if (socket == SOCKET_ID_ANY) 852 socket = 0; 853 854 frag_cycles = (rte_get_tsc_hz() + MS_PER_S - 1) / MS_PER_S * 855 max_flow_ttl; 856 857 if ((rxq->frag_tbl = rte_ip_frag_table_create(max_flow_num, 858 IP_FRAG_TBL_BUCKET_ENTRIES, max_flow_num, frag_cycles, 859 socket)) == NULL) { 860 RTE_LOG(ERR, IP_RSMBL, "ip_frag_tbl_create(%u) on " 861 "lcore: %u for queue: %u failed\n", 862 max_flow_num, lcore, queue); 863 return -1; 864 } 865 866 /* 867 * At any given moment up to <max_flow_num * (MAX_FRAG_NUM)> 868 * mbufs could be stored int the fragment table. 869 * Plus, each TX queue can hold up to <max_flow_num> packets. 870 */ 871 872 nb_mbuf = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST) * MAX_FRAG_NUM; 873 nb_mbuf *= (port_conf.rxmode.max_rx_pkt_len + BUF_SIZE - 1) / BUF_SIZE; 874 nb_mbuf *= 2; /* ipv4 and ipv6 */ 875 nb_mbuf += nb_rxd + nb_txd; 876 877 nb_mbuf = RTE_MAX(nb_mbuf, (uint32_t)NB_MBUF); 878 879 snprintf(buf, sizeof(buf), "mbuf_pool_%u_%u", lcore, queue); 880 881 rxq->pool = rte_pktmbuf_pool_create(buf, nb_mbuf, MEMPOOL_CACHE_SIZE, 0, 882 MBUF_DATA_SIZE, socket); 883 if (rxq->pool == NULL) { 884 RTE_LOG(ERR, IP_RSMBL, 885 "rte_pktmbuf_pool_create(%s) failed", buf); 886 return -1; 887 } 888 889 return 0; 890 } 891 892 static int 893 init_mem(void) 894 { 895 char buf[PATH_MAX]; 896 struct rte_lpm *lpm; 897 struct rte_lpm6 *lpm6; 898 struct rte_lpm_config lpm_config; 899 int socket; 900 unsigned lcore_id; 901 902 /* traverse through lcores and initialize structures on each socket */ 903 904 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 905 906 if (rte_lcore_is_enabled(lcore_id) == 0) 907 continue; 908 909 socket = rte_lcore_to_socket_id(lcore_id); 910 911 if (socket == SOCKET_ID_ANY) 912 socket = 0; 913 914 if (socket_lpm[socket] == NULL) { 915 RTE_LOG(INFO, IP_RSMBL, "Creating LPM table on socket %i\n", socket); 916 snprintf(buf, sizeof(buf), "IP_RSMBL_LPM_%i", socket); 917 918 lpm_config.max_rules = LPM_MAX_RULES; 919 lpm_config.number_tbl8s = 256; 920 lpm_config.flags = 0; 921 922 lpm = rte_lpm_create(buf, socket, &lpm_config); 923 if (lpm == NULL) { 924 RTE_LOG(ERR, IP_RSMBL, "Cannot create LPM table\n"); 925 return -1; 926 } 927 socket_lpm[socket] = lpm; 928 } 929 930 if (socket_lpm6[socket] == NULL) { 931 RTE_LOG(INFO, IP_RSMBL, "Creating LPM6 table on socket %i\n", socket); 932 snprintf(buf, sizeof(buf), "IP_RSMBL_LPM_%i", socket); 933 934 lpm6 = rte_lpm6_create(buf, socket, &lpm6_config); 935 if (lpm6 == NULL) { 936 RTE_LOG(ERR, IP_RSMBL, "Cannot create LPM table\n"); 937 return -1; 938 } 939 socket_lpm6[socket] = lpm6; 940 } 941 } 942 943 return 0; 944 } 945 946 static void 947 queue_dump_stat(void) 948 { 949 uint32_t i, lcore; 950 const struct lcore_queue_conf *qconf; 951 952 for (lcore = 0; lcore < RTE_MAX_LCORE; lcore++) { 953 if (rte_lcore_is_enabled(lcore) == 0) 954 continue; 955 956 qconf = &lcore_queue_conf[lcore]; 957 for (i = 0; i < qconf->n_rx_queue; i++) { 958 959 fprintf(stdout, " -- lcoreid=%u portid=%u " 960 "frag tbl stat:\n", 961 lcore, qconf->rx_queue_list[i].portid); 962 rte_ip_frag_table_statistics_dump(stdout, 963 qconf->rx_queue_list[i].frag_tbl); 964 fprintf(stdout, "TX bursts:\t%" PRIu64 "\n" 965 "TX packets _queued:\t%" PRIu64 "\n" 966 "TX packets dropped:\t%" PRIu64 "\n" 967 "TX packets send:\t%" PRIu64 "\n", 968 qconf->tx_stat.call, 969 qconf->tx_stat.queue, 970 qconf->tx_stat.drop, 971 qconf->tx_stat.send); 972 } 973 } 974 } 975 976 static void 977 signal_handler(int signum) 978 { 979 queue_dump_stat(); 980 if (signum != SIGUSR1) 981 rte_exit(0, "received signal: %d, exiting\n", signum); 982 } 983 984 int 985 main(int argc, char **argv) 986 { 987 struct lcore_queue_conf *qconf; 988 struct rte_eth_dev_info dev_info; 989 struct rte_eth_txconf *txconf; 990 struct rx_queue *rxq; 991 int ret, socket; 992 unsigned nb_ports; 993 uint16_t queueid; 994 unsigned lcore_id = 0, rx_lcore_id = 0; 995 uint32_t n_tx_queue, nb_lcores; 996 uint16_t portid; 997 998 /* init EAL */ 999 ret = rte_eal_init(argc, argv); 1000 if (ret < 0) 1001 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n"); 1002 argc -= ret; 1003 argv += ret; 1004 1005 /* parse application arguments (after the EAL ones) */ 1006 ret = parse_args(argc, argv); 1007 if (ret < 0) 1008 rte_exit(EXIT_FAILURE, "Invalid IP reassembly parameters\n"); 1009 1010 nb_ports = rte_eth_dev_count_avail(); 1011 if (nb_ports == 0) 1012 rte_exit(EXIT_FAILURE, "No ports found!\n"); 1013 1014 nb_lcores = rte_lcore_count(); 1015 1016 /* initialize structures (mempools, lpm etc.) */ 1017 if (init_mem() < 0) 1018 rte_panic("Cannot initialize memory structures!\n"); 1019 1020 /* check if portmask has non-existent ports */ 1021 if (enabled_port_mask & ~(RTE_LEN2MASK(nb_ports, unsigned))) 1022 rte_exit(EXIT_FAILURE, "Non-existent ports in portmask!\n"); 1023 1024 /* initialize all ports */ 1025 RTE_ETH_FOREACH_DEV(portid) { 1026 struct rte_eth_rxconf rxq_conf; 1027 struct rte_eth_conf local_port_conf = port_conf; 1028 1029 /* skip ports that are not enabled */ 1030 if ((enabled_port_mask & (1 << portid)) == 0) { 1031 printf("\nSkipping disabled port %d\n", portid); 1032 continue; 1033 } 1034 1035 qconf = &lcore_queue_conf[rx_lcore_id]; 1036 1037 /* limit the frame size to the maximum supported by NIC */ 1038 rte_eth_dev_info_get(portid, &dev_info); 1039 local_port_conf.rxmode.max_rx_pkt_len = RTE_MIN( 1040 dev_info.max_rx_pktlen, 1041 local_port_conf.rxmode.max_rx_pkt_len); 1042 1043 /* get the lcore_id for this port */ 1044 while (rte_lcore_is_enabled(rx_lcore_id) == 0 || 1045 qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) { 1046 1047 rx_lcore_id++; 1048 if (rx_lcore_id >= RTE_MAX_LCORE) 1049 rte_exit(EXIT_FAILURE, "Not enough cores\n"); 1050 1051 qconf = &lcore_queue_conf[rx_lcore_id]; 1052 } 1053 1054 socket = rte_lcore_to_socket_id(portid); 1055 if (socket == SOCKET_ID_ANY) 1056 socket = 0; 1057 1058 queueid = qconf->n_rx_queue; 1059 rxq = &qconf->rx_queue_list[queueid]; 1060 rxq->portid = portid; 1061 rxq->lpm = socket_lpm[socket]; 1062 rxq->lpm6 = socket_lpm6[socket]; 1063 1064 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 1065 &nb_txd); 1066 if (ret < 0) 1067 rte_exit(EXIT_FAILURE, 1068 "Cannot adjust number of descriptors: err=%d, port=%d\n", 1069 ret, portid); 1070 1071 if (setup_queue_tbl(rxq, rx_lcore_id, queueid) < 0) 1072 rte_exit(EXIT_FAILURE, "Failed to set up queue table\n"); 1073 qconf->n_rx_queue++; 1074 1075 /* init port */ 1076 printf("Initializing port %d ... ", portid ); 1077 fflush(stdout); 1078 1079 n_tx_queue = nb_lcores; 1080 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT) 1081 n_tx_queue = MAX_TX_QUEUE_PER_PORT; 1082 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 1083 local_port_conf.txmode.offloads |= 1084 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 1085 1086 local_port_conf.rx_adv_conf.rss_conf.rss_hf &= 1087 dev_info.flow_type_rss_offloads; 1088 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf != 1089 port_conf.rx_adv_conf.rss_conf.rss_hf) { 1090 printf("Port %u modified RSS hash function based on hardware support," 1091 "requested:%#"PRIx64" configured:%#"PRIx64"\n", 1092 portid, 1093 port_conf.rx_adv_conf.rss_conf.rss_hf, 1094 local_port_conf.rx_adv_conf.rss_conf.rss_hf); 1095 } 1096 1097 ret = rte_eth_dev_configure(portid, 1, (uint16_t)n_tx_queue, 1098 &local_port_conf); 1099 if (ret < 0) { 1100 printf("\n"); 1101 rte_exit(EXIT_FAILURE, "Cannot configure device: " 1102 "err=%d, port=%d\n", 1103 ret, portid); 1104 } 1105 1106 /* init one RX queue */ 1107 rxq_conf = dev_info.default_rxconf; 1108 rxq_conf.offloads = local_port_conf.rxmode.offloads; 1109 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 1110 socket, &rxq_conf, 1111 rxq->pool); 1112 if (ret < 0) { 1113 printf("\n"); 1114 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: " 1115 "err=%d, port=%d\n", 1116 ret, portid); 1117 } 1118 1119 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]); 1120 print_ethaddr(" Address:", &ports_eth_addr[portid]); 1121 printf("\n"); 1122 1123 /* init one TX queue per couple (lcore,port) */ 1124 queueid = 0; 1125 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1126 if (rte_lcore_is_enabled(lcore_id) == 0) 1127 continue; 1128 1129 socket = (int) rte_lcore_to_socket_id(lcore_id); 1130 1131 printf("txq=%u,%d,%d ", lcore_id, queueid, socket); 1132 fflush(stdout); 1133 1134 txconf = &dev_info.default_txconf; 1135 txconf->offloads = local_port_conf.txmode.offloads; 1136 1137 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd, 1138 socket, txconf); 1139 if (ret < 0) 1140 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, " 1141 "port=%d\n", ret, portid); 1142 1143 qconf = &lcore_queue_conf[lcore_id]; 1144 qconf->tx_queue_id[portid] = queueid; 1145 setup_port_tbl(qconf, lcore_id, socket, portid); 1146 queueid++; 1147 } 1148 printf("\n"); 1149 } 1150 1151 printf("\n"); 1152 1153 /* start ports */ 1154 RTE_ETH_FOREACH_DEV(portid) { 1155 if ((enabled_port_mask & (1 << portid)) == 0) { 1156 continue; 1157 } 1158 /* Start device */ 1159 ret = rte_eth_dev_start(portid); 1160 if (ret < 0) 1161 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n", 1162 ret, portid); 1163 1164 rte_eth_promiscuous_enable(portid); 1165 } 1166 1167 if (init_routing_table() < 0) 1168 rte_exit(EXIT_FAILURE, "Cannot init routing table\n"); 1169 1170 check_all_ports_link_status(enabled_port_mask); 1171 1172 signal(SIGUSR1, signal_handler); 1173 signal(SIGTERM, signal_handler); 1174 signal(SIGINT, signal_handler); 1175 1176 /* launch per-lcore init on every lcore */ 1177 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER); 1178 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 1179 if (rte_eal_wait_lcore(lcore_id) < 0) 1180 return -1; 1181 } 1182 1183 return 0; 1184 } 1185