examples/l3fwd/l3fwd_fib.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2021 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <stddef.h>
   7 #include <stdint.h>
   8 #include <sys/socket.h>
   9 #include <arpa/inet.h>
  10
  11 #include <rte_fib.h>
  12 #include <rte_fib6.h>
  13
  14 #include "l3fwd.h"
  15 #if defined RTE_ARCH_X86
  16 #include "l3fwd_sse.h"
  17 #elif defined __ARM_NEON
  18 #include "l3fwd_neon.h"
  19 #elif defined RTE_ARCH_PPC_64
  20 #include "l3fwd_altivec.h"
  21 #else
  22 #include "l3fwd_common.h"
  23 #endif
  24 #include "l3fwd_event.h"
  25 #include "l3fwd_route.h"
  26
  27 /* Configure how many packets ahead to prefetch for fib. */
  28 #define FIB_PREFETCH_OFFSET 4
  29
  30 /* A non-existent portid is needed to denote a default hop for fib. */
  31 #define FIB_DEFAULT_HOP 999
  32
  33 /*
  34  * If the machine has SSE, NEON or PPC 64 then multiple packets
  35  * can be sent at once if not only single packets will be sent
  36  */
  37 #if defined RTE_ARCH_X86 || defined __ARM_NEON \
  38                 || defined RTE_ARCH_PPC_64
  39 #define FIB_SEND_MULTI
  40 #endif
  41
  42 static struct rte_fib *ipv4_l3fwd_fib_lookup_struct[NB_SOCKETS];
  43 static struct rte_fib6 *ipv6_l3fwd_fib_lookup_struct[NB_SOCKETS];
  44
  45 /* Parse packet type and ip address. */
  46 static inline void
  47 fib_parse_packet(struct rte_mbuf *mbuf,
  48                 uint32_t *ipv4, uint32_t *ipv4_cnt,
  49                 uint8_t ipv6[RTE_FIB6_IPV6_ADDR_SIZE],
  50                 uint32_t *ipv6_cnt, uint8_t *ip_type)
  51 {
  52         struct rte_ether_hdr *eth_hdr;
  53         struct rte_ipv4_hdr *ipv4_hdr;
  54         struct rte_ipv6_hdr *ipv6_hdr;
  55
  56         eth_hdr = rte_pktmbuf_mtod(mbuf, struct rte_ether_hdr *);
  57         /* IPv4 */
  58         if (mbuf->packet_type & RTE_PTYPE_L3_IPV4) {
  59                 ipv4_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
  60                 *ipv4 = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
  61                 /* Store type of packet in type_arr (IPv4=1, IPv6=0). */
  62                 *ip_type = 1;
  63                 (*ipv4_cnt)++;
  64         }
  65         /* IPv6 */
  66         else {
  67                 ipv6_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1);
  68                 rte_mov16(ipv6, (const uint8_t *)ipv6_hdr->dst_addr);
  69                 *ip_type = 0;
  70                 (*ipv6_cnt)++;
  71         }
  72 }
  73
  74 /*
  75  * If the machine does not have SSE, NEON or PPC 64 then the packets
  76  * are sent one at a time using send_single_packet()
  77  */
  78 #if !defined FIB_SEND_MULTI
  79 static inline void
  80 fib_send_single(int nb_tx, struct lcore_conf *qconf,
  81                 struct rte_mbuf **pkts_burst, uint16_t hops[nb_tx])
  82 {
  83         int32_t j;
  84         struct rte_ether_hdr *eth_hdr;
  85
  86         for (j = 0; j < nb_tx; j++) {
  87                 /* Run rfc1812 if packet is ipv4 and checks enabled. */
  88 #if defined DO_RFC_1812_CHECKS
  89                 rfc1812_process((struct rte_ipv4_hdr *)(rte_pktmbuf_mtod(
  90                                 pkts_burst[j], struct rte_ether_hdr *) + 1),
  91                                 &hops[j], pkts_burst[j]->packet_type);
  92 #endif
  93
  94                 /* Set MAC addresses. */
  95                 eth_hdr = rte_pktmbuf_mtod(pkts_burst[j],
  96                                 struct rte_ether_hdr *);
  97                 *(uint64_t *)&eth_hdr->dst_addr = dest_eth_addr[hops[j]];
  98                 rte_ether_addr_copy(&ports_eth_addr[hops[j]],
  99                                 &eth_hdr->src_addr);
 100
 101                 /* Send single packet. */
 102                 send_single_packet(qconf, pkts_burst[j], hops[j]);
 103         }
 104 }
 105 #endif
 106
 107 /* Bulk parse, fib lookup and send. */
 108 static inline void
 109 fib_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
 110                 uint16_t portid, struct lcore_conf *qconf)
 111 {
 112         uint32_t ipv4_arr[nb_rx];
 113         uint8_t ipv6_arr[nb_rx][RTE_FIB6_IPV6_ADDR_SIZE];
 114         uint16_t hops[nb_rx];
 115         uint64_t hopsv4[nb_rx], hopsv6[nb_rx];
 116         uint8_t type_arr[nb_rx];
 117         uint32_t ipv4_cnt = 0, ipv6_cnt = 0;
 118         uint32_t ipv4_arr_assem = 0, ipv6_arr_assem = 0;
 119         uint16_t nh;
 120         int32_t i;
 121
 122         /* Prefetch first packets. */
 123         for (i = 0; i < FIB_PREFETCH_OFFSET && i < nb_rx; i++)
 124                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[i], void *));
 125
 126         /* Parse packet info and prefetch. */
 127         for (i = 0; i < (nb_rx - FIB_PREFETCH_OFFSET); i++) {
 128                 /* Prefetch packet. */
 129                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
 130                                 i + FIB_PREFETCH_OFFSET], void *));
 131                 fib_parse_packet(pkts_burst[i],
 132                                 &ipv4_arr[ipv4_cnt], &ipv4_cnt,
 133                                 ipv6_arr[ipv6_cnt], &ipv6_cnt,
 134                                 &type_arr[i]);
 135         }
 136
 137         /* Parse remaining packet info. */
 138         for (; i < nb_rx; i++)
 139                 fib_parse_packet(pkts_burst[i],
 140                                 &ipv4_arr[ipv4_cnt], &ipv4_cnt,
 141                                 ipv6_arr[ipv6_cnt], &ipv6_cnt,
 142                                 &type_arr[i]);
 143
 144         /* Lookup IPv4 hops if IPv4 packets are present. */
 145         if (likely(ipv4_cnt > 0))
 146                 rte_fib_lookup_bulk(qconf->ipv4_lookup_struct,
 147                                 ipv4_arr, hopsv4, ipv4_cnt);
 148
 149         /* Lookup IPv6 hops if IPv6 packets are present. */
 150         if (ipv6_cnt > 0)
 151                 rte_fib6_lookup_bulk(qconf->ipv6_lookup_struct,
 152                                 ipv6_arr, hopsv6, ipv6_cnt);
 153
 154         /* Add IPv4 and IPv6 hops to one array depending on type. */
 155         for (i = 0; i < nb_rx; i++) {
 156                 if (type_arr[i])
 157                         nh = (uint16_t)hopsv4[ipv4_arr_assem++];
 158                 else
 159                         nh = (uint16_t)hopsv6[ipv6_arr_assem++];
 160                 hops[i] = nh != FIB_DEFAULT_HOP ? nh : portid;
 161         }
 162
 163 #if defined FIB_SEND_MULTI
 164         send_packets_multi(qconf, pkts_burst, hops, nb_rx);
 165 #else
 166         fib_send_single(nb_rx, qconf, pkts_burst, hops);
 167 #endif
 168 }
 169
 170 /* Main fib processing loop. */
 171 int
 172 fib_main_loop(__rte_unused void *dummy)
 173 {
 174         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 175         unsigned int lcore_id;
 176         uint64_t prev_tsc, diff_tsc, cur_tsc;
 177         int i, nb_rx;
 178         uint16_t portid;
 179         uint8_t queueid;
 180         struct lcore_conf *qconf;
 181         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
 182                         US_PER_S * BURST_TX_DRAIN_US;
 183
 184         lcore_id = rte_lcore_id();
 185         qconf = &lcore_conf[lcore_id];
 186
 187         const uint16_t n_rx_q = qconf->n_rx_queue;
 188         const uint16_t n_tx_p = qconf->n_tx_port;
 189         if (n_rx_q == 0) {
 190                 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
 191                 return 0;
 192         }
 193
 194         RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
 195
 196         for (i = 0; i < n_rx_q; i++) {
 197
 198                 portid = qconf->rx_queue_list[i].port_id;
 199                 queueid = qconf->rx_queue_list[i].queue_id;
 200                 RTE_LOG(INFO, L3FWD,
 201                                 " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
 202                                 lcore_id, portid, queueid);
 203         }
 204
 205         cur_tsc = rte_rdtsc();
 206         prev_tsc = cur_tsc;
 207
 208         while (!force_quit) {
 209
 210                 /* TX burst queue drain. */
 211                 diff_tsc = cur_tsc - prev_tsc;
 212                 if (unlikely(diff_tsc > drain_tsc)) {
 213
 214                         for (i = 0; i < n_tx_p; ++i) {
 215                                 portid = qconf->tx_port_id[i];
 216                                 if (qconf->tx_mbufs[portid].len == 0)
 217                                         continue;
 218                                 send_burst(qconf,
 219                                         qconf->tx_mbufs[portid].len,
 220                                         portid);
 221                                 qconf->tx_mbufs[portid].len = 0;
 222                         }
 223
 224                         prev_tsc = cur_tsc;
 225                 }
 226
 227                 /* Read packet from RX queues. */
 228                 for (i = 0; i < n_rx_q; ++i) {
 229                         portid = qconf->rx_queue_list[i].port_id;
 230                         queueid = qconf->rx_queue_list[i].queue_id;
 231                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
 232                                         MAX_PKT_BURST);
 233                         if (nb_rx == 0)
 234                                 continue;
 235
 236                         /* Use fib to lookup port IDs and transmit them. */
 237                         fib_send_packets(nb_rx, pkts_burst,     portid, qconf);
 238                 }
 239
 240                 cur_tsc = rte_rdtsc();
 241         }
 242
 243         return 0;
 244 }
 245
 246 /* One eventdev loop for single and burst using fib. */
 247 static __rte_always_inline void
 248 fib_event_loop(struct l3fwd_event_resources *evt_rsrc,
 249                 const uint8_t flags)
 250 {
 251         const int event_p_id = l3fwd_get_free_event_port(evt_rsrc);
 252         const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[
 253                         evt_rsrc->evq.nb_queues - 1];
 254         const uint8_t event_d_id = evt_rsrc->event_d_id;
 255         const uint16_t deq_len = evt_rsrc->deq_depth;
 256         struct rte_event events[MAX_PKT_BURST];
 257         int i, nb_enq = 0, nb_deq = 0;
 258         struct lcore_conf *lconf;
 259         unsigned int lcore_id;
 260
 261         uint32_t ipv4_arr[MAX_PKT_BURST];
 262         uint8_t ipv6_arr[MAX_PKT_BURST][RTE_FIB6_IPV6_ADDR_SIZE];
 263         uint64_t hopsv4[MAX_PKT_BURST], hopsv6[MAX_PKT_BURST];
 264         uint16_t nh;
 265         uint8_t type_arr[MAX_PKT_BURST];
 266         uint32_t ipv4_cnt, ipv6_cnt;
 267         uint32_t ipv4_arr_assem, ipv6_arr_assem;
 268
 269         if (event_p_id < 0)
 270                 return;
 271
 272         lcore_id = rte_lcore_id();
 273
 274         lconf = &lcore_conf[lcore_id];
 275
 276         RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id);
 277
 278         while (!force_quit) {
 279                 /* Read events from RX queues. */
 280                 nb_deq = rte_event_dequeue_burst(event_d_id, event_p_id,
 281                                 events, deq_len, 0);
 282                 if (nb_deq == 0) {
 283                         rte_pause();
 284                         continue;
 285                 }
 286
 287                 /* Reset counters. */
 288                 ipv4_cnt = 0;
 289                 ipv6_cnt = 0;
 290                 ipv4_arr_assem = 0;
 291                 ipv6_arr_assem = 0;
 292
 293                 /* Prefetch first packets. */
 294                 for (i = 0; i < FIB_PREFETCH_OFFSET && i < nb_deq; i++)
 295                         rte_prefetch0(rte_pktmbuf_mtod(events[i].mbuf, void *));
 296
 297                 /* Parse packet info and prefetch. */
 298                 for (i = 0; i < (nb_deq - FIB_PREFETCH_OFFSET); i++) {
 299                         if (flags & L3FWD_EVENT_TX_ENQ) {
 300                                 events[i].queue_id = tx_q_id;
 301                                 events[i].op = RTE_EVENT_OP_FORWARD;
 302                         }
 303
 304                         if (flags & L3FWD_EVENT_TX_DIRECT)
 305                                 rte_event_eth_tx_adapter_txq_set(events[i].mbuf,
 306                                                 0);
 307
 308                         /* Prefetch packet. */
 309                         rte_prefetch0(rte_pktmbuf_mtod(events[
 310                                         i + FIB_PREFETCH_OFFSET].mbuf,
 311                                         void *));
 312
 313                         fib_parse_packet(events[i].mbuf,
 314                                         &ipv4_arr[ipv4_cnt], &ipv4_cnt,
 315                                         ipv6_arr[ipv6_cnt], &ipv6_cnt,
 316                                         &type_arr[i]);
 317                 }
 318
 319                 /* Parse remaining packet info. */
 320                 for (; i < nb_deq; i++) {
 321                         if (flags & L3FWD_EVENT_TX_ENQ) {
 322                                 events[i].queue_id = tx_q_id;
 323                                 events[i].op = RTE_EVENT_OP_FORWARD;
 324                         }
 325
 326                         if (flags & L3FWD_EVENT_TX_DIRECT)
 327                                 rte_event_eth_tx_adapter_txq_set(events[i].mbuf,
 328                                                 0);
 329
 330                         fib_parse_packet(events[i].mbuf,
 331                                         &ipv4_arr[ipv4_cnt], &ipv4_cnt,
 332                                         ipv6_arr[ipv6_cnt], &ipv6_cnt,
 333                                         &type_arr[i]);
 334                 }
 335
 336                 /* Lookup IPv4 hops if IPv4 packets are present. */
 337                 if (likely(ipv4_cnt > 0))
 338                         rte_fib_lookup_bulk(lconf->ipv4_lookup_struct,
 339                                         ipv4_arr, hopsv4, ipv4_cnt);
 340
 341                 /* Lookup IPv6 hops if IPv6 packets are present. */
 342                 if (ipv6_cnt > 0)
 343                         rte_fib6_lookup_bulk(lconf->ipv6_lookup_struct,
 344                                         ipv6_arr, hopsv6, ipv6_cnt);
 345
 346                 /* Assign ports looked up in fib depending on IPv4 or IPv6 */
 347                 for (i = 0; i < nb_deq; i++) {
 348                         if (type_arr[i])
 349                                 nh = (uint16_t)hopsv4[ipv4_arr_assem++];
 350                         else
 351                                 nh = (uint16_t)hopsv6[ipv6_arr_assem++];
 352                         if (nh != FIB_DEFAULT_HOP)
 353                                 events[i].mbuf->port = nh;
 354                 }
 355
 356                 if (flags & L3FWD_EVENT_TX_ENQ) {
 357                         nb_enq = rte_event_enqueue_burst(event_d_id, event_p_id,
 358                                         events, nb_deq);
 359                         while (nb_enq < nb_deq && !force_quit)
 360                                 nb_enq += rte_event_enqueue_burst(event_d_id,
 361                                                 event_p_id, events + nb_enq,
 362                                                 nb_deq - nb_enq);
 363                 }
 364
 365                 if (flags & L3FWD_EVENT_TX_DIRECT) {
 366                         nb_enq = rte_event_eth_tx_adapter_enqueue(event_d_id,
 367                                         event_p_id, events, nb_deq, 0);
 368                         while (nb_enq < nb_deq && !force_quit)
 369                                 nb_enq += rte_event_eth_tx_adapter_enqueue(
 370                                                 event_d_id, event_p_id,
 371                                                 events + nb_enq,
 372                                                 nb_deq - nb_enq, 0);
 373                 }
 374         }
 375
 376         l3fwd_event_worker_cleanup(event_d_id, event_p_id, events, nb_enq,
 377                                    nb_deq, 0);
 378 }
 379
 380 int __rte_noinline
 381 fib_event_main_loop_tx_d(__rte_unused void *dummy)
 382 {
 383         struct l3fwd_event_resources *evt_rsrc =
 384                         l3fwd_get_eventdev_rsrc();
 385
 386         fib_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT);
 387         return 0;
 388 }
 389
 390 int __rte_noinline
 391 fib_event_main_loop_tx_d_burst(__rte_unused void *dummy)
 392 {
 393         struct l3fwd_event_resources *evt_rsrc =
 394                         l3fwd_get_eventdev_rsrc();
 395
 396         fib_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT);
 397         return 0;
 398 }
 399
 400 int __rte_noinline
 401 fib_event_main_loop_tx_q(__rte_unused void *dummy)
 402 {
 403         struct l3fwd_event_resources *evt_rsrc =
 404                         l3fwd_get_eventdev_rsrc();
 405
 406         fib_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ);
 407         return 0;
 408 }
 409
 410 int __rte_noinline
 411 fib_event_main_loop_tx_q_burst(__rte_unused void *dummy)
 412 {
 413         struct l3fwd_event_resources *evt_rsrc =
 414                         l3fwd_get_eventdev_rsrc();
 415
 416         fib_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ);
 417         return 0;
 418 }
 419
 420 static __rte_always_inline void
 421 fib_process_event_vector(struct rte_event_vector *vec)
 422 {
 423         uint8_t ipv6_arr[MAX_PKT_BURST][RTE_FIB6_IPV6_ADDR_SIZE];
 424         uint64_t hopsv4[MAX_PKT_BURST], hopsv6[MAX_PKT_BURST];
 425         uint32_t ipv4_arr_assem, ipv6_arr_assem;
 426         struct rte_mbuf **mbufs = vec->mbufs;
 427         uint32_t ipv4_arr[MAX_PKT_BURST];
 428         uint8_t type_arr[MAX_PKT_BURST];
 429         uint32_t ipv4_cnt, ipv6_cnt;
 430         struct lcore_conf *lconf;
 431         uint16_t nh;
 432         int i;
 433
 434         lconf = &lcore_conf[rte_lcore_id()];
 435
 436         /* Reset counters. */
 437         ipv4_cnt = 0;
 438         ipv6_cnt = 0;
 439         ipv4_arr_assem = 0;
 440         ipv6_arr_assem = 0;
 441
 442         /* Prefetch first packets. */
 443         for (i = 0; i < FIB_PREFETCH_OFFSET && i < vec->nb_elem; i++)
 444                 rte_prefetch0(rte_pktmbuf_mtod(mbufs[i], void *));
 445
 446         /* Parse packet info and prefetch. */
 447         for (i = 0; i < (vec->nb_elem - FIB_PREFETCH_OFFSET); i++) {
 448                 rte_prefetch0(rte_pktmbuf_mtod(mbufs[i + FIB_PREFETCH_OFFSET],
 449                                                void *));
 450                 fib_parse_packet(mbufs[i], &ipv4_arr[ipv4_cnt], &ipv4_cnt,
 451                                  ipv6_arr[ipv6_cnt], &ipv6_cnt, &type_arr[i]);
 452         }
 453
 454         /* Parse remaining packet info. */
 455         for (; i < vec->nb_elem; i++)
 456                 fib_parse_packet(mbufs[i], &ipv4_arr[ipv4_cnt], &ipv4_cnt,
 457                                  ipv6_arr[ipv6_cnt], &ipv6_cnt, &type_arr[i]);
 458
 459         /* Lookup IPv4 hops if IPv4 packets are present. */
 460         if (likely(ipv4_cnt > 0))
 461                 rte_fib_lookup_bulk(lconf->ipv4_lookup_struct, ipv4_arr, hopsv4,
 462                                     ipv4_cnt);
 463
 464         /* Lookup IPv6 hops if IPv6 packets are present. */
 465         if (ipv6_cnt > 0)
 466                 rte_fib6_lookup_bulk(lconf->ipv6_lookup_struct, ipv6_arr,
 467                                      hopsv6, ipv6_cnt);
 468
 469         if (vec->attr_valid) {
 470                 nh = type_arr[0] ? (uint16_t)hopsv4[0] : (uint16_t)hopsv6[0];
 471                 if (nh != FIB_DEFAULT_HOP)
 472                         vec->port = nh;
 473                 else
 474                         vec->attr_valid = 0;
 475         }
 476
 477         /* Assign ports looked up in fib depending on IPv4 or IPv6 */
 478         for (i = 0; i < vec->nb_elem; i++) {
 479                 if (type_arr[i])
 480                         nh = (uint16_t)hopsv4[ipv4_arr_assem++];
 481                 else
 482                         nh = (uint16_t)hopsv6[ipv6_arr_assem++];
 483                 if (nh != FIB_DEFAULT_HOP)
 484                         mbufs[i]->port = nh;
 485                 event_vector_attr_validate(vec, mbufs[i]);
 486         }
 487 }
 488
 489 static __rte_always_inline void
 490 fib_event_loop_vector(struct l3fwd_event_resources *evt_rsrc,
 491                       const uint8_t flags)
 492 {
 493         const int event_p_id = l3fwd_get_free_event_port(evt_rsrc);
 494         const uint8_t tx_q_id =
 495                 evt_rsrc->evq.event_q_id[evt_rsrc->evq.nb_queues - 1];
 496         const uint8_t event_d_id = evt_rsrc->event_d_id;
 497         const uint16_t deq_len = evt_rsrc->deq_depth;
 498         struct rte_event events[MAX_PKT_BURST];
 499         int nb_enq = 0, nb_deq = 0, i;
 500
 501         if (event_p_id < 0)
 502                 return;
 503
 504         RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__,
 505                 rte_lcore_id());
 506
 507         while (!force_quit) {
 508                 /* Read events from RX queues. */
 509                 nb_deq = rte_event_dequeue_burst(event_d_id, event_p_id, events,
 510                                                  deq_len, 0);
 511                 if (nb_deq == 0) {
 512                         rte_pause();
 513                         continue;
 514                 }
 515
 516                 for (i = 0; i < nb_deq; i++) {
 517                         if (flags & L3FWD_EVENT_TX_ENQ) {
 518                                 events[i].queue_id = tx_q_id;
 519                                 events[i].op = RTE_EVENT_OP_FORWARD;
 520                         }
 521
 522                         fib_process_event_vector(events[i].vec);
 523
 524                         if (flags & L3FWD_EVENT_TX_DIRECT)
 525                                 event_vector_txq_set(events[i].vec, 0);
 526                 }
 527
 528                 if (flags & L3FWD_EVENT_TX_ENQ) {
 529                         nb_enq = rte_event_enqueue_burst(event_d_id, event_p_id,
 530                                                          events, nb_deq);
 531                         while (nb_enq < nb_deq && !force_quit)
 532                                 nb_enq += rte_event_enqueue_burst(
 533                                         event_d_id, event_p_id, events + nb_enq,
 534                                         nb_deq - nb_enq);
 535                 }
 536
 537                 if (flags & L3FWD_EVENT_TX_DIRECT) {
 538                         nb_enq = rte_event_eth_tx_adapter_enqueue(
 539                                 event_d_id, event_p_id, events, nb_deq, 0);
 540                         while (nb_enq < nb_deq && !force_quit)
 541                                 nb_enq += rte_event_eth_tx_adapter_enqueue(
 542                                         event_d_id, event_p_id, events + nb_enq,
 543                                         nb_deq - nb_enq, 0);
 544                 }
 545         }
 546
 547         l3fwd_event_worker_cleanup(event_d_id, event_p_id, events, nb_enq,
 548                                    nb_deq, 1);
 549 }
 550
 551 int __rte_noinline
 552 fib_event_main_loop_tx_d_vector(__rte_unused void *dummy)
 553 {
 554         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 555
 556         fib_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_DIRECT);
 557         return 0;
 558 }
 559
 560 int __rte_noinline
 561 fib_event_main_loop_tx_d_burst_vector(__rte_unused void *dummy)
 562 {
 563         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 564
 565         fib_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_DIRECT);
 566         return 0;
 567 }
 568
 569 int __rte_noinline
 570 fib_event_main_loop_tx_q_vector(__rte_unused void *dummy)
 571 {
 572         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 573
 574         fib_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_ENQ);
 575         return 0;
 576 }
 577
 578 int __rte_noinline
 579 fib_event_main_loop_tx_q_burst_vector(__rte_unused void *dummy)
 580 {
 581         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 582
 583         fib_event_loop_vector(evt_rsrc, L3FWD_EVENT_TX_ENQ);
 584         return 0;
 585 }
 586
 587 /* Function to setup fib. 8< */
 588 void
 589 setup_fib(const int socketid)
 590 {
 591         struct rte_eth_dev_info dev_info;
 592         struct rte_fib6_conf config;
 593         struct rte_fib_conf config_ipv4;
 594         int i;
 595         int ret;
 596         char s[64];
 597         char abuf[INET6_ADDRSTRLEN];
 598
 599         /* Create the fib IPv4 table. */
 600         config_ipv4.type = RTE_FIB_DIR24_8;
 601         config_ipv4.max_routes = (1 << 16);
 602         config_ipv4.rib_ext_sz = 0;
 603         config_ipv4.default_nh = FIB_DEFAULT_HOP;
 604         config_ipv4.dir24_8.nh_sz = RTE_FIB_DIR24_8_4B;
 605         config_ipv4.dir24_8.num_tbl8 = (1 << 15);
 606         snprintf(s, sizeof(s), "IPV4_L3FWD_FIB_%d", socketid);
 607         ipv4_l3fwd_fib_lookup_struct[socketid] =
 608                         rte_fib_create(s, socketid, &config_ipv4);
 609         if (ipv4_l3fwd_fib_lookup_struct[socketid] == NULL)
 610                 rte_exit(EXIT_FAILURE,
 611                         "Unable to create the l3fwd FIB table on socket %d\n",
 612                         socketid);
 613
 614
 615         /* Populate the fib ipv4 table. */
 616         for (i = 0; i < route_num_v4; i++) {
 617                 struct in_addr in;
 618
 619                 /* Skip unused ports. */
 620                 if ((1 << route_base_v4[i].if_out &
 621                                 enabled_port_mask) == 0)
 622                         continue;
 623
 624                 rte_eth_dev_info_get(route_base_v4[i].if_out,
 625                                      &dev_info);
 626                 ret = rte_fib_add(ipv4_l3fwd_fib_lookup_struct[socketid],
 627                         route_base_v4[i].ip,
 628                         route_base_v4[i].depth,
 629                         route_base_v4[i].if_out);
 630
 631                 if (ret < 0) {
 632                         free(route_base_v4);
 633                         rte_exit(EXIT_FAILURE,
 634                                         "Unable to add entry %u to the l3fwd FIB table on socket %d\n",
 635                                         i, socketid);
 636                 }
 637
 638                 in.s_addr = htonl(route_base_v4[i].ip);
 639                 if (inet_ntop(AF_INET, &in, abuf, sizeof(abuf)) != NULL) {
 640                         printf("FIB: Adding route %s / %d (%d) [%s]\n", abuf,
 641                                route_base_v4[i].depth,
 642                                route_base_v4[i].if_out,
 643                                dev_info.device->name);
 644                 } else {
 645                         printf("FIB: IPv4 route added to port %d [%s]\n",
 646                                route_base_v4[i].if_out,
 647                                dev_info.device->name);
 648                 }
 649         }
 650         /* >8 End of setup fib. */
 651
 652         /* Create the fib IPv6 table. */
 653         snprintf(s, sizeof(s), "IPV6_L3FWD_FIB_%d", socketid);
 654
 655         config.type = RTE_FIB6_TRIE;
 656         config.max_routes = (1 << 16) - 1;
 657         config.rib_ext_sz = 0;
 658         config.default_nh = FIB_DEFAULT_HOP;
 659         config.trie.nh_sz = RTE_FIB6_TRIE_4B;
 660         config.trie.num_tbl8 = (1 << 15);
 661         ipv6_l3fwd_fib_lookup_struct[socketid] = rte_fib6_create(s, socketid,
 662                         &config);
 663         if (ipv6_l3fwd_fib_lookup_struct[socketid] == NULL) {
 664                 free(route_base_v4);
 665                 rte_exit(EXIT_FAILURE,
 666                                 "Unable to create the l3fwd FIB table on socket %d\n",
 667                                 socketid);
 668         }
 669
 670         /* Populate the fib IPv6 table. */
 671         for (i = 0; i < route_num_v6; i++) {
 672
 673                 /* Skip unused ports. */
 674                 if ((1 << route_base_v6[i].if_out &
 675                                 enabled_port_mask) == 0)
 676                         continue;
 677
 678                 rte_eth_dev_info_get(route_base_v6[i].if_out,
 679                                      &dev_info);
 680                 ret = rte_fib6_add(ipv6_l3fwd_fib_lookup_struct[socketid],
 681                         route_base_v6[i].ip_8,
 682                         route_base_v6[i].depth,
 683                         route_base_v6[i].if_out);
 684
 685                 if (ret < 0) {
 686                         free(route_base_v4);
 687                         free(route_base_v6);
 688                         rte_exit(EXIT_FAILURE,
 689                                         "Unable to add entry %u to the l3fwd FIB table on socket %d\n",
 690                                         i, socketid);
 691                 }
 692
 693                 if (inet_ntop(AF_INET6, route_base_v6[i].ip_8,
 694                                 abuf, sizeof(abuf)) != NULL) {
 695                         printf("FIB: Adding route %s / %d (%d) [%s]\n", abuf,
 696                                route_base_v6[i].depth,
 697                                route_base_v6[i].if_out,
 698                                dev_info.device->name);
 699                 } else {
 700                         printf("FIB: IPv6 route added to port %d [%s]\n",
 701                                route_base_v6[i].if_out,
 702                                dev_info.device->name);
 703                 }
 704         }
 705 }
 706
 707 /* Return ipv4 fib lookup struct. */
 708 void *
 709 fib_get_ipv4_l3fwd_lookup_struct(const int socketid)
 710 {
 711         return ipv4_l3fwd_fib_lookup_struct[socketid];
 712 }
 713
 714 /* Return ipv6 fib lookup struct. */
 715 void *
 716 fib_get_ipv6_l3fwd_lookup_struct(const int socketid)
 717 {
 718         return ipv6_l3fwd_fib_lookup_struct[socketid];
 719 }