1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2016 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 <stdbool.h> 16 #include <sys/socket.h> 17 #include <arpa/inet.h> 18 19 #include <rte_debug.h> 20 #include <rte_ether.h> 21 #include <rte_ethdev.h> 22 #include <rte_cycles.h> 23 #include <rte_mbuf.h> 24 #include <rte_ip.h> 25 #include <rte_tcp.h> 26 #include <rte_udp.h> 27 #include <rte_lpm.h> 28 #include <rte_lpm6.h> 29 30 #include "l3fwd.h" 31 #include "l3fwd_common.h" 32 #include "l3fwd_event.h" 33 34 #include "lpm_route_parse.c" 35 36 #define IPV4_L3FWD_LPM_MAX_RULES 1024 37 #define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8) 38 #define IPV6_L3FWD_LPM_MAX_RULES 1024 39 #define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16) 40 41 static struct rte_lpm *ipv4_l3fwd_lpm_lookup_struct[NB_SOCKETS]; 42 static struct rte_lpm6 *ipv6_l3fwd_lpm_lookup_struct[NB_SOCKETS]; 43 44 /* Performing LPM-based lookups. 8< */ 45 static inline uint16_t 46 lpm_get_ipv4_dst_port(const struct rte_ipv4_hdr *ipv4_hdr, 47 uint16_t portid, 48 struct rte_lpm *ipv4_l3fwd_lookup_struct) 49 { 50 uint32_t dst_ip = rte_be_to_cpu_32(ipv4_hdr->dst_addr); 51 uint32_t next_hop; 52 53 if (rte_lpm_lookup(ipv4_l3fwd_lookup_struct, dst_ip, &next_hop) == 0) 54 return next_hop; 55 else 56 return portid; 57 } 58 /* >8 End of performing LPM-based lookups. */ 59 60 static inline uint16_t 61 lpm_get_ipv6_dst_port(const struct rte_ipv6_hdr *ipv6_hdr, 62 uint16_t portid, 63 struct rte_lpm6 *ipv6_l3fwd_lookup_struct) 64 { 65 const struct rte_ipv6_addr *dst_ip = &ipv6_hdr->dst_addr; 66 uint32_t next_hop; 67 68 if (rte_lpm6_lookup(ipv6_l3fwd_lookup_struct, dst_ip, &next_hop) == 0) 69 return next_hop; 70 else 71 return portid; 72 } 73 74 static __rte_always_inline uint16_t 75 lpm_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt, 76 uint16_t portid) 77 { 78 struct rte_ipv6_hdr *ipv6_hdr; 79 struct rte_ipv4_hdr *ipv4_hdr; 80 struct rte_ether_hdr *eth_hdr; 81 82 if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) { 83 84 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *); 85 ipv4_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1); 86 87 return lpm_get_ipv4_dst_port(ipv4_hdr, portid, 88 qconf->ipv4_lookup_struct); 89 } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) { 90 91 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *); 92 ipv6_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1); 93 94 return lpm_get_ipv6_dst_port(ipv6_hdr, portid, 95 qconf->ipv6_lookup_struct); 96 } 97 98 return portid; 99 } 100 101 /* 102 * lpm_get_dst_port optimized routine for packets where dst_ipv4 is already 103 * precalculated. If packet is ipv6 dst_addr is taken directly from packet 104 * header and dst_ipv4 value is not used. 105 */ 106 static __rte_always_inline uint16_t 107 lpm_get_dst_port_with_ipv4(const struct lcore_conf *qconf, struct rte_mbuf *pkt, 108 uint32_t dst_ipv4, uint16_t portid) 109 { 110 uint32_t next_hop; 111 struct rte_ipv6_hdr *ipv6_hdr; 112 struct rte_ether_hdr *eth_hdr; 113 114 if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) { 115 return (uint16_t) ((rte_lpm_lookup(qconf->ipv4_lookup_struct, 116 dst_ipv4, &next_hop) == 0) 117 ? next_hop : portid); 118 119 } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) { 120 121 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *); 122 ipv6_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1); 123 124 return (uint16_t) ((rte_lpm6_lookup(qconf->ipv6_lookup_struct, 125 &ipv6_hdr->dst_addr, &next_hop) == 0) 126 ? next_hop : portid); 127 128 } 129 130 return portid; 131 } 132 133 #if defined(RTE_ARCH_X86) 134 #include "l3fwd_lpm_sse.h" 135 #elif defined __ARM_NEON 136 #include "l3fwd_lpm_neon.h" 137 #elif defined(RTE_ARCH_PPC_64) 138 #include "l3fwd_lpm_altivec.h" 139 #else 140 #include "l3fwd_lpm.h" 141 #endif 142 143 /* main processing loop */ 144 int 145 lpm_main_loop(__rte_unused void *dummy) 146 { 147 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 148 unsigned lcore_id; 149 uint64_t prev_tsc, diff_tsc, cur_tsc; 150 int i, nb_rx; 151 uint16_t portid, queueid; 152 struct lcore_conf *qconf; 153 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / 154 US_PER_S * BURST_TX_DRAIN_US; 155 156 lcore_id = rte_lcore_id(); 157 qconf = &lcore_conf[lcore_id]; 158 159 const uint16_t n_rx_q = qconf->n_rx_queue; 160 const uint16_t n_tx_p = qconf->n_tx_port; 161 if (n_rx_q == 0) { 162 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id); 163 return 0; 164 } 165 166 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id); 167 168 for (i = 0; i < n_rx_q; i++) { 169 170 portid = qconf->rx_queue_list[i].port_id; 171 queueid = qconf->rx_queue_list[i].queue_id; 172 RTE_LOG(INFO, L3FWD, 173 " -- lcoreid=%u portid=%u rxqueueid=%" PRIu16 "\n", 174 lcore_id, portid, queueid); 175 } 176 177 cur_tsc = rte_rdtsc(); 178 prev_tsc = cur_tsc; 179 180 while (!force_quit) { 181 182 /* 183 * TX burst queue drain 184 */ 185 diff_tsc = cur_tsc - prev_tsc; 186 if (unlikely(diff_tsc > drain_tsc)) { 187 188 for (i = 0; i < n_tx_p; ++i) { 189 portid = qconf->tx_port_id[i]; 190 if (qconf->tx_mbufs[portid].len == 0) 191 continue; 192 send_burst(qconf, 193 qconf->tx_mbufs[portid].len, 194 portid); 195 qconf->tx_mbufs[portid].len = 0; 196 } 197 198 prev_tsc = cur_tsc; 199 } 200 201 /* 202 * Read packet from RX queues 203 */ 204 for (i = 0; i < n_rx_q; ++i) { 205 portid = qconf->rx_queue_list[i].port_id; 206 queueid = qconf->rx_queue_list[i].queue_id; 207 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, 208 nb_pkt_per_burst); 209 if (nb_rx == 0) 210 continue; 211 212 #if defined RTE_ARCH_X86 || defined __ARM_NEON \ 213 || defined RTE_ARCH_PPC_64 214 l3fwd_lpm_send_packets(nb_rx, pkts_burst, 215 portid, qconf); 216 #else 217 l3fwd_lpm_no_opt_send_packets(nb_rx, pkts_burst, 218 portid, qconf); 219 #endif /* X86 */ 220 } 221 222 cur_tsc = rte_rdtsc(); 223 } 224 225 return 0; 226 } 227 228 #ifdef RTE_LIB_EVENTDEV 229 static __rte_always_inline uint16_t 230 lpm_process_event_pkt(const struct lcore_conf *lconf, struct rte_mbuf *mbuf) 231 { 232 mbuf->port = lpm_get_dst_port(lconf, mbuf, mbuf->port); 233 234 #if defined RTE_ARCH_X86 || defined __ARM_NEON \ 235 || defined RTE_ARCH_PPC_64 236 process_packet(mbuf, &mbuf->port); 237 #else 238 239 struct rte_ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf, 240 struct rte_ether_hdr *); 241 242 /* dst addr */ 243 *(uint64_t *)ð_hdr->dst_addr = dest_eth_addr[mbuf->port]; 244 245 /* src addr */ 246 rte_ether_addr_copy(&ports_eth_addr[mbuf->port], 247 ð_hdr->src_addr); 248 249 rfc1812_process(rte_pktmbuf_mtod_offset(mbuf, struct rte_ipv4_hdr *, 250 sizeof(struct rte_ether_hdr)), 251 &mbuf->port, mbuf->packet_type); 252 #endif 253 return mbuf->port; 254 } 255 256 static __rte_always_inline void 257 lpm_event_loop_single(struct l3fwd_event_resources *evt_rsrc, 258 const uint8_t flags) 259 { 260 const int event_p_id = l3fwd_get_free_event_port(evt_rsrc); 261 const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[ 262 evt_rsrc->evq.nb_queues - 1]; 263 const uint8_t event_d_id = evt_rsrc->event_d_id; 264 uint8_t enq = 0, deq = 0; 265 struct lcore_conf *lconf; 266 unsigned int lcore_id; 267 struct rte_event ev; 268 269 if (event_p_id < 0) 270 return; 271 272 lcore_id = rte_lcore_id(); 273 lconf = &lcore_conf[lcore_id]; 274 275 RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id); 276 while (!force_quit) { 277 deq = rte_event_dequeue_burst(event_d_id, event_p_id, &ev, 1, 278 0); 279 if (!deq) 280 continue; 281 282 if (lpm_process_event_pkt(lconf, ev.mbuf) == BAD_PORT) { 283 rte_pktmbuf_free(ev.mbuf); 284 continue; 285 } 286 287 if (flags & L3FWD_EVENT_TX_ENQ) { 288 ev.queue_id = tx_q_id; 289 ev.op = RTE_EVENT_OP_FORWARD; 290 do { 291 enq = rte_event_enqueue_burst( 292 event_d_id, event_p_id, &ev, 1); 293 } while (!enq && !force_quit); 294 } 295 296 if (flags & L3FWD_EVENT_TX_DIRECT) { 297 rte_event_eth_tx_adapter_txq_set(ev.mbuf, 0); 298 do { 299 enq = rte_event_eth_tx_adapter_enqueue( 300 event_d_id, event_p_id, &ev, 1, 0); 301 } while (!enq && !force_quit); 302 } 303 } 304 305 l3fwd_event_worker_cleanup(event_d_id, event_p_id, &ev, enq, deq, 0); 306 } 307 308 static __rte_always_inline void 309 lpm_event_loop_burst(struct l3fwd_event_resources *evt_rsrc, 310 const uint8_t flags) 311 { 312 const int event_p_id = l3fwd_get_free_event_port(evt_rsrc); 313 const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[ 314 evt_rsrc->evq.nb_queues - 1]; 315 const uint8_t event_d_id = evt_rsrc->event_d_id; 316 const uint16_t deq_len = evt_rsrc->deq_depth; 317 struct rte_event events[MAX_PKT_BURST]; 318 int i, nb_enq = 0, nb_deq = 0; 319 struct lcore_conf *lconf; 320 unsigned int lcore_id; 321 322 if (event_p_id < 0) 323 return; 324 325 lcore_id = rte_lcore_id(); 326 327 lconf = &lcore_conf[lcore_id]; 328 329 RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id); 330 331 while (!force_quit) { 332 /* Read events from RX queues */ 333 nb_deq = rte_event_dequeue_burst(event_d_id, event_p_id, 334 events, deq_len, 0); 335 if (nb_deq == 0) { 336 rte_pause(); 337 continue; 338 } 339 340 for (i = 0; i < nb_deq; i++) { 341 if (flags & L3FWD_EVENT_TX_ENQ) { 342 events[i].queue_id = tx_q_id; 343 events[i].op = RTE_EVENT_OP_FORWARD; 344 } 345 346 if (flags & L3FWD_EVENT_TX_DIRECT) 347 rte_event_eth_tx_adapter_txq_set(events[i].mbuf, 348 0); 349 350 lpm_process_event_pkt(lconf, events[i].mbuf); 351 } 352 353 if (flags & L3FWD_EVENT_TX_ENQ) { 354 nb_enq = rte_event_enqueue_burst(event_d_id, event_p_id, 355 events, nb_deq); 356 while (nb_enq < nb_deq && !force_quit) 357 nb_enq += rte_event_enqueue_burst(event_d_id, 358 event_p_id, events + nb_enq, 359 nb_deq - nb_enq); 360 } 361 362 if (flags & L3FWD_EVENT_TX_DIRECT) { 363 nb_enq = rte_event_eth_tx_adapter_enqueue(event_d_id, 364 event_p_id, events, nb_deq, 0); 365 while (nb_enq < nb_deq && !force_quit) 366 nb_enq += rte_event_eth_tx_adapter_enqueue( 367 event_d_id, event_p_id, 368 events + nb_enq, 369 nb_deq - nb_enq, 0); 370 } 371 } 372 373 l3fwd_event_worker_cleanup(event_d_id, event_p_id, events, nb_enq, 374 nb_deq, 0); 375 } 376 377 static __rte_always_inline void 378 lpm_event_loop(struct l3fwd_event_resources *evt_rsrc, 379 const uint8_t flags) 380 { 381 if (flags & L3FWD_EVENT_SINGLE) 382 lpm_event_loop_single(evt_rsrc, flags); 383 if (flags & L3FWD_EVENT_BURST) 384 lpm_event_loop_burst(evt_rsrc, flags); 385 } 386 387 int __rte_noinline 388 lpm_event_main_loop_tx_d(__rte_unused void *dummy) 389 { 390 struct l3fwd_event_resources *evt_rsrc = 391 l3fwd_get_eventdev_rsrc(); 392 393 lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT | L3FWD_EVENT_SINGLE); 394 return 0; 395 } 396 397 int __rte_noinline 398 lpm_event_main_loop_tx_d_burst(__rte_unused void *dummy) 399 { 400 struct l3fwd_event_resources *evt_rsrc = 401 l3fwd_get_eventdev_rsrc(); 402 403 lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT | L3FWD_EVENT_BURST); 404 return 0; 405 } 406 407 int __rte_noinline 408 lpm_event_main_loop_tx_q(__rte_unused void *dummy) 409 { 410 struct l3fwd_event_resources *evt_rsrc = 411 l3fwd_get_eventdev_rsrc(); 412 413 lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ | L3FWD_EVENT_SINGLE); 414 return 0; 415 } 416 417 int __rte_noinline 418 lpm_event_main_loop_tx_q_burst(__rte_unused void *dummy) 419 { 420 struct l3fwd_event_resources *evt_rsrc = 421 l3fwd_get_eventdev_rsrc(); 422 423 lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ | L3FWD_EVENT_BURST); 424 return 0; 425 } 426 427 static __rte_always_inline void 428 lpm_process_event_vector(struct rte_event_vector *vec, struct lcore_conf *lconf, 429 uint16_t *dst_port) 430 { 431 struct rte_mbuf **mbufs = vec->mbufs; 432 int i; 433 434 #if defined RTE_ARCH_X86 || defined __ARM_NEON || defined RTE_ARCH_PPC_64 435 if (vec->attr_valid) { 436 l3fwd_lpm_process_packets(vec->nb_elem, mbufs, vec->port, 437 dst_port, lconf, 1); 438 } else { 439 for (i = 0; i < vec->nb_elem; i++) 440 l3fwd_lpm_process_packets(1, &mbufs[i], mbufs[i]->port, 441 &dst_port[i], lconf, 1); 442 } 443 #else 444 for (i = 0; i < vec->nb_elem; i++) 445 dst_port[i] = lpm_process_event_pkt(lconf, mbufs[i]); 446 #endif 447 448 process_event_vector(vec, dst_port); 449 } 450 451 /* Same eventdev loop for single and burst of vector */ 452 static __rte_always_inline void 453 lpm_event_loop_vector(struct l3fwd_event_resources *evt_rsrc, 454 const uint8_t flags) 455 { 456 const int event_p_id = l3fwd_get_free_event_port(evt_rsrc); 457 const uint8_t tx_q_id = 458 evt_rsrc->evq.event_q_id[evt_rsrc->evq.nb_queues - 1]; 459 const uint8_t event_d_id = evt_rsrc->event_d_id; 460 const uint16_t deq_len = evt_rsrc->deq_depth; 461 struct rte_event events[MAX_PKT_BURST]; 462 int i, nb_enq = 0, nb_deq = 0; 463 struct lcore_conf *lconf; 464 uint16_t *dst_port_list; 465 unsigned int lcore_id; 466 467 if (event_p_id < 0) 468 return; 469 470 lcore_id = rte_lcore_id(); 471 lconf = &lcore_conf[lcore_id]; 472 dst_port_list = 473 rte_zmalloc("", sizeof(uint16_t) * evt_rsrc->vector_size, 474 RTE_CACHE_LINE_SIZE); 475 if (dst_port_list == NULL) 476 return; 477 RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id); 478 479 while (!force_quit) { 480 /* Read events from RX queues */ 481 nb_deq = rte_event_dequeue_burst(event_d_id, event_p_id, events, 482 deq_len, 0); 483 if (nb_deq == 0) { 484 rte_pause(); 485 continue; 486 } 487 488 for (i = 0; i < nb_deq; i++) { 489 if (flags & L3FWD_EVENT_TX_ENQ) { 490 events[i].queue_id = tx_q_id; 491 events[i].op = RTE_EVENT_OP_FORWARD; 492 } 493 494 lpm_process_event_vector(events[i].vec, lconf, 495 dst_port_list); 496 } 497 498 if (flags & L3FWD_EVENT_TX_ENQ) { 499 nb_enq = rte_event_enqueue_burst(event_d_id, event_p_id, 500 events, nb_deq); 501 while (nb_enq < nb_deq && !force_quit) 502 nb_enq += rte_event_enqueue_burst( 503 event_d_id, event_p_id, events + nb_enq, 504 nb_deq - nb_enq); 505 } 506 507 if (flags & L3FWD_EVENT_TX_DIRECT) { 508 nb_enq = rte_event_eth_tx_adapter_enqueue( 509 event_d_id, event_p_id, events, nb_deq, 0); 510 while (nb_enq < nb_deq && !force_quit) 511 nb_enq += rte_event_eth_tx_adapter_enqueue( 512 event_d_id, event_p_id, events + nb_enq, 513 nb_deq - nb_enq, 0); 514 } 515 } 516 517 l3fwd_event_worker_cleanup(event_d_id, event_p_id, events, nb_enq, 518 nb_deq, 1); 519 rte_free(dst_port_list); 520 } 521 522 int __rte_noinline 523 lpm_event_main_loop_tx_d_vector(__rte_unused void *dummy) 524 { 525 struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc(); 526 527 lpm_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_DIRECT); 528 return 0; 529 } 530 531 int __rte_noinline 532 lpm_event_main_loop_tx_d_burst_vector(__rte_unused void *dummy) 533 { 534 struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc(); 535 536 lpm_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_DIRECT); 537 return 0; 538 } 539 540 int __rte_noinline 541 lpm_event_main_loop_tx_q_vector(__rte_unused void *dummy) 542 { 543 struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc(); 544 545 lpm_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_ENQ); 546 return 0; 547 } 548 549 int __rte_noinline 550 lpm_event_main_loop_tx_q_burst_vector(__rte_unused void *dummy) 551 { 552 struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc(); 553 554 lpm_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_ENQ); 555 return 0; 556 } 557 #endif 558 559 void 560 setup_lpm(const int socketid) 561 { 562 struct rte_eth_dev_info dev_info; 563 struct rte_lpm6_config config; 564 struct rte_lpm_config config_ipv4; 565 int i; 566 int ret; 567 char s[64]; 568 char abuf[INET6_ADDRSTRLEN]; 569 570 /* create the LPM table */ 571 config_ipv4.max_rules = IPV4_L3FWD_LPM_MAX_RULES; 572 config_ipv4.number_tbl8s = IPV4_L3FWD_LPM_NUMBER_TBL8S; 573 config_ipv4.flags = 0; 574 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid); 575 ipv4_l3fwd_lpm_lookup_struct[socketid] = 576 rte_lpm_create(s, socketid, &config_ipv4); 577 if (ipv4_l3fwd_lpm_lookup_struct[socketid] == NULL) 578 rte_exit(EXIT_FAILURE, 579 "Unable to create the l3fwd LPM table on socket %d\n", 580 socketid); 581 582 /* populate the LPM table */ 583 for (i = 0; i < route_num_v4; i++) { 584 struct in_addr in; 585 586 /* skip unused ports */ 587 if ((1 << route_base_v4[i].if_out & 588 enabled_port_mask) == 0) 589 continue; 590 591 ret = rte_eth_dev_info_get(route_base_v4[i].if_out, &dev_info); 592 if (ret < 0) 593 rte_exit(EXIT_FAILURE, "Unable to get device info for port %u\n", 594 route_base_v4[i].if_out); 595 596 ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid], 597 route_base_v4[i].ip, 598 route_base_v4[i].depth, 599 route_base_v4[i].if_out); 600 601 if (ret < 0) { 602 lpm_free_routes(); 603 rte_exit(EXIT_FAILURE, 604 "Unable to add entry %u to the l3fwd LPM table on socket %d\n", 605 i, socketid); 606 } 607 608 in.s_addr = htonl(route_base_v4[i].ip); 609 printf("LPM: Adding route %s / %d (%d) [%s]\n", 610 inet_ntop(AF_INET, &in, abuf, sizeof(abuf)), 611 route_base_v4[i].depth, 612 route_base_v4[i].if_out, rte_dev_name(dev_info.device)); 613 } 614 615 /* create the LPM6 table */ 616 snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid); 617 618 config.max_rules = IPV6_L3FWD_LPM_MAX_RULES; 619 config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S; 620 config.flags = 0; 621 ipv6_l3fwd_lpm_lookup_struct[socketid] = rte_lpm6_create(s, socketid, 622 &config); 623 if (ipv6_l3fwd_lpm_lookup_struct[socketid] == NULL) { 624 lpm_free_routes(); 625 rte_exit(EXIT_FAILURE, 626 "Unable to create the l3fwd LPM table on socket %d\n", 627 socketid); 628 } 629 630 /* populate the LPM table */ 631 for (i = 0; i < route_num_v6; i++) { 632 633 /* skip unused ports */ 634 if ((1 << route_base_v6[i].if_out & 635 enabled_port_mask) == 0) 636 continue; 637 638 ret = rte_eth_dev_info_get(route_base_v6[i].if_out, &dev_info); 639 if (ret < 0) 640 rte_exit(EXIT_FAILURE, "Unable to get device info for port %u\n", 641 route_base_v6[i].if_out); 642 643 ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid], 644 &route_base_v6[i].ip6, 645 route_base_v6[i].depth, 646 route_base_v6[i].if_out); 647 648 if (ret < 0) { 649 lpm_free_routes(); 650 rte_exit(EXIT_FAILURE, 651 "Unable to add entry %u to the l3fwd LPM table on socket %d\n", 652 i, socketid); 653 } 654 655 printf("LPM: Adding route %s / %d (%d) [%s]\n", 656 inet_ntop(AF_INET6, &route_base_v6[i].ip6, abuf, 657 sizeof(abuf)), 658 route_base_v6[i].depth, 659 route_base_v6[i].if_out, rte_dev_name(dev_info.device)); 660 } 661 } 662 663 int 664 lpm_check_ptype(int portid) 665 { 666 int i, ret; 667 int ptype_l3_ipv4 = 0, ptype_l3_ipv6 = 0; 668 uint32_t ptype_mask = RTE_PTYPE_L3_MASK; 669 670 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0); 671 if (ret <= 0) 672 return 0; 673 674 uint32_t ptypes[ret]; 675 676 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret); 677 for (i = 0; i < ret; ++i) { 678 if (ptypes[i] & RTE_PTYPE_L3_IPV4) 679 ptype_l3_ipv4 = 1; 680 if (ptypes[i] & RTE_PTYPE_L3_IPV6) 681 ptype_l3_ipv6 = 1; 682 } 683 684 if (!ipv6 && !ptype_l3_ipv4) { 685 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid); 686 return 0; 687 } 688 689 if (ipv6 && !ptype_l3_ipv6) { 690 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid); 691 return 0; 692 } 693 694 return 1; 695 696 } 697 698 static inline void 699 lpm_parse_ptype(struct rte_mbuf *m) 700 { 701 struct rte_ether_hdr *eth_hdr; 702 uint32_t packet_type = RTE_PTYPE_UNKNOWN; 703 uint16_t ether_type; 704 705 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); 706 ether_type = eth_hdr->ether_type; 707 if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)) 708 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN; 709 else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6)) 710 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN; 711 712 m->packet_type = packet_type; 713 } 714 715 uint16_t 716 lpm_cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused, 717 struct rte_mbuf *pkts[], uint16_t nb_pkts, 718 uint16_t max_pkts __rte_unused, 719 void *user_param __rte_unused) 720 { 721 unsigned int i; 722 723 if (unlikely(nb_pkts == 0)) 724 return nb_pkts; 725 rte_prefetch0(rte_pktmbuf_mtod(pkts[0], struct ether_hdr *)); 726 for (i = 0; i < (unsigned int) (nb_pkts - 1); ++i) { 727 rte_prefetch0(rte_pktmbuf_mtod(pkts[i+1], 728 struct ether_hdr *)); 729 lpm_parse_ptype(pkts[i]); 730 } 731 lpm_parse_ptype(pkts[i]); 732 733 return nb_pkts; 734 } 735 736 /* Return ipv4/ipv6 lpm fwd lookup struct. */ 737 void * 738 lpm_get_ipv4_l3fwd_lookup_struct(const int socketid) 739 { 740 return ipv4_l3fwd_lpm_lookup_struct[socketid]; 741 } 742 743 void * 744 lpm_get_ipv6_l3fwd_lookup_struct(const int socketid) 745 { 746 return ipv6_l3fwd_lpm_lookup_struct[socketid]; 747 } 748