examples/l3fwd/l3fwd_lpm.c

   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_event.h"
  32
  33 struct ipv4_l3fwd_lpm_route {
  34         uint32_t ip;
  35         uint8_t  depth;
  36         uint8_t  if_out;
  37 };
  38
  39 struct ipv6_l3fwd_lpm_route {
  40         uint8_t ip[16];
  41         uint8_t  depth;
  42         uint8_t  if_out;
  43 };
  44
  45 /* 198.18.0.0/16 are set aside for RFC2544 benchmarking (RFC5735). */
  46 static const struct ipv4_l3fwd_lpm_route ipv4_l3fwd_lpm_route_array[] = {
  47         {RTE_IPV4(198, 18, 0, 0), 24, 0},
  48         {RTE_IPV4(198, 18, 1, 0), 24, 1},
  49         {RTE_IPV4(198, 18, 2, 0), 24, 2},
  50         {RTE_IPV4(198, 18, 3, 0), 24, 3},
  51         {RTE_IPV4(198, 18, 4, 0), 24, 4},
  52         {RTE_IPV4(198, 18, 5, 0), 24, 5},
  53         {RTE_IPV4(198, 18, 6, 0), 24, 6},
  54         {RTE_IPV4(198, 18, 7, 0), 24, 7},
  55 };
  56
  57 /* 2001:0200::/48 is IANA reserved range for IPv6 benchmarking (RFC5180) */
  58 static const struct ipv6_l3fwd_lpm_route ipv6_l3fwd_lpm_route_array[] = {
  59         {{32, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 48, 0},
  60         {{32, 1, 2, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0}, 48, 1},
  61         {{32, 1, 2, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0}, 48, 2},
  62         {{32, 1, 2, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0}, 48, 3},
  63         {{32, 1, 2, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0}, 48, 4},
  64         {{32, 1, 2, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0}, 48, 5},
  65         {{32, 1, 2, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0}, 48, 6},
  66         {{32, 1, 2, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0}, 48, 7},
  67 };
  68
  69 #define IPV4_L3FWD_LPM_MAX_RULES         1024
  70 #define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
  71 #define IPV6_L3FWD_LPM_MAX_RULES         1024
  72 #define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
  73
  74 static struct rte_lpm *ipv4_l3fwd_lpm_lookup_struct[NB_SOCKETS];
  75 static struct rte_lpm6 *ipv6_l3fwd_lpm_lookup_struct[NB_SOCKETS];
  76
  77 static inline uint16_t
  78 lpm_get_ipv4_dst_port(const struct rte_ipv4_hdr *ipv4_hdr,
  79                       uint16_t portid,
  80                       struct rte_lpm *ipv4_l3fwd_lookup_struct)
  81 {
  82         uint32_t dst_ip = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
  83         uint32_t next_hop;
  84
  85         if (rte_lpm_lookup(ipv4_l3fwd_lookup_struct, dst_ip, &next_hop) == 0)
  86                 return next_hop;
  87         else
  88                 return portid;
  89 }
  90
  91 static inline uint16_t
  92 lpm_get_ipv6_dst_port(const struct rte_ipv6_hdr *ipv6_hdr,
  93                       uint16_t portid,
  94                       struct rte_lpm6 *ipv6_l3fwd_lookup_struct)
  95 {
  96         const uint8_t *dst_ip = ipv6_hdr->dst_addr;
  97         uint32_t next_hop;
  98
  99         if (rte_lpm6_lookup(ipv6_l3fwd_lookup_struct, dst_ip, &next_hop) == 0)
 100                 return next_hop;
 101         else
 102                 return portid;
 103 }
 104
 105 static __rte_always_inline uint16_t
 106 lpm_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
 107                 uint16_t portid)
 108 {
 109         struct rte_ipv6_hdr *ipv6_hdr;
 110         struct rte_ipv4_hdr *ipv4_hdr;
 111         struct rte_ether_hdr *eth_hdr;
 112
 113         if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
 114
 115                 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
 116                 ipv4_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
 117
 118                 return lpm_get_ipv4_dst_port(ipv4_hdr, portid,
 119                                              qconf->ipv4_lookup_struct);
 120         } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
 121
 122                 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
 123                 ipv6_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1);
 124
 125                 return lpm_get_ipv6_dst_port(ipv6_hdr, portid,
 126                                              qconf->ipv6_lookup_struct);
 127         }
 128
 129         return portid;
 130 }
 131
 132 /*
 133  * lpm_get_dst_port optimized routine for packets where dst_ipv4 is already
 134  * precalculated. If packet is ipv6 dst_addr is taken directly from packet
 135  * header and dst_ipv4 value is not used.
 136  */
 137 static __rte_always_inline uint16_t
 138 lpm_get_dst_port_with_ipv4(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
 139         uint32_t dst_ipv4, uint16_t portid)
 140 {
 141         uint32_t next_hop;
 142         struct rte_ipv6_hdr *ipv6_hdr;
 143         struct rte_ether_hdr *eth_hdr;
 144
 145         if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
 146                 return (uint16_t) ((rte_lpm_lookup(qconf->ipv4_lookup_struct,
 147                                                    dst_ipv4, &next_hop) == 0)
 148                                    ? next_hop : portid);
 149
 150         } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
 151
 152                 eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
 153                 ipv6_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1);
 154
 155                 return (uint16_t) ((rte_lpm6_lookup(qconf->ipv6_lookup_struct,
 156                                 ipv6_hdr->dst_addr, &next_hop) == 0)
 157                                 ? next_hop : portid);
 158
 159         }
 160
 161         return portid;
 162 }
 163
 164 #if defined(RTE_ARCH_X86)
 165 #include "l3fwd_lpm_sse.h"
 166 #elif defined RTE_MACHINE_CPUFLAG_NEON
 167 #include "l3fwd_lpm_neon.h"
 168 #elif defined(RTE_ARCH_PPC_64)
 169 #include "l3fwd_lpm_altivec.h"
 170 #else
 171 #include "l3fwd_lpm.h"
 172 #endif
 173
 174 /* main processing loop */
 175 int
 176 lpm_main_loop(__attribute__((unused)) void *dummy)
 177 {
 178         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 179         unsigned lcore_id;
 180         uint64_t prev_tsc, diff_tsc, cur_tsc;
 181         int i, nb_rx;
 182         uint16_t portid;
 183         uint8_t queueid;
 184         struct lcore_conf *qconf;
 185         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
 186                 US_PER_S * BURST_TX_DRAIN_US;
 187
 188         prev_tsc = 0;
 189
 190         lcore_id = rte_lcore_id();
 191         qconf = &lcore_conf[lcore_id];
 192
 193         if (qconf->n_rx_queue == 0) {
 194                 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
 195                 return 0;
 196         }
 197
 198         RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
 199
 200         for (i = 0; i < qconf->n_rx_queue; i++) {
 201
 202                 portid = qconf->rx_queue_list[i].port_id;
 203                 queueid = qconf->rx_queue_list[i].queue_id;
 204                 RTE_LOG(INFO, L3FWD,
 205                         " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
 206                         lcore_id, portid, queueid);
 207         }
 208
 209         while (!force_quit) {
 210
 211                 cur_tsc = rte_rdtsc();
 212
 213                 /*
 214                  * TX burst queue drain
 215                  */
 216                 diff_tsc = cur_tsc - prev_tsc;
 217                 if (unlikely(diff_tsc > drain_tsc)) {
 218
 219                         for (i = 0; i < qconf->n_tx_port; ++i) {
 220                                 portid = qconf->tx_port_id[i];
 221                                 if (qconf->tx_mbufs[portid].len == 0)
 222                                         continue;
 223                                 send_burst(qconf,
 224                                         qconf->tx_mbufs[portid].len,
 225                                         portid);
 226                                 qconf->tx_mbufs[portid].len = 0;
 227                         }
 228
 229                         prev_tsc = cur_tsc;
 230                 }
 231
 232                 /*
 233                  * Read packet from RX queues
 234                  */
 235                 for (i = 0; i < qconf->n_rx_queue; ++i) {
 236                         portid = qconf->rx_queue_list[i].port_id;
 237                         queueid = qconf->rx_queue_list[i].queue_id;
 238                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
 239                                 MAX_PKT_BURST);
 240                         if (nb_rx == 0)
 241                                 continue;
 242
 243 #if defined RTE_ARCH_X86 || defined RTE_MACHINE_CPUFLAG_NEON \
 244                          || defined RTE_ARCH_PPC_64
 245                         l3fwd_lpm_send_packets(nb_rx, pkts_burst,
 246                                                 portid, qconf);
 247 #else
 248                         l3fwd_lpm_no_opt_send_packets(nb_rx, pkts_burst,
 249                                                         portid, qconf);
 250 #endif /* X86 */
 251                 }
 252         }
 253
 254         return 0;
 255 }
 256
 257 static __rte_always_inline uint16_t
 258 lpm_process_event_pkt(const struct lcore_conf *lconf, struct rte_mbuf *mbuf)
 259 {
 260         mbuf->port = lpm_get_dst_port(lconf, mbuf, mbuf->port);
 261
 262 #if defined RTE_ARCH_X86 || defined RTE_MACHINE_CPUFLAG_NEON \
 263         || defined RTE_ARCH_PPC_64
 264         process_packet(mbuf, &mbuf->port);
 265 #else
 266
 267         struct rte_ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf,
 268                         struct rte_ether_hdr *);
 269 #ifdef DO_RFC_1812_CHECKS
 270         struct rte_ipv4_hdr *ipv4_hdr;
 271         if (RTE_ETH_IS_IPV4_HDR(mbuf->packet_type)) {
 272                 /* Handle IPv4 headers.*/
 273                 ipv4_hdr = rte_pktmbuf_mtod_offset(mbuf,
 274                                 struct rte_ipv4_hdr *,
 275                                 sizeof(struct rte_ether_hdr));
 276
 277                 if (is_valid_ipv4_pkt(ipv4_hdr, mbuf->pkt_len)
 278                                 < 0) {
 279                         mbuf->port = BAD_PORT;
 280                         continue;
 281                 }
 282                 /* Update time to live and header checksum */
 283                 --(ipv4_hdr->time_to_live);
 284                 ++(ipv4_hdr->hdr_checksum);
 285         }
 286 #endif
 287         /* dst addr */
 288         *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[mbuf->port];
 289
 290         /* src addr */
 291         rte_ether_addr_copy(&ports_eth_addr[mbuf->port],
 292                         &eth_hdr->s_addr);
 293 #endif
 294         return mbuf->port;
 295 }
 296
 297 static __rte_always_inline void
 298 lpm_event_loop_single(struct l3fwd_event_resources *evt_rsrc,
 299                 const uint8_t flags)
 300 {
 301         const int event_p_id = l3fwd_get_free_event_port(evt_rsrc);
 302         const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[
 303                 evt_rsrc->evq.nb_queues - 1];
 304         const uint8_t event_d_id = evt_rsrc->event_d_id;
 305         struct lcore_conf *lconf;
 306         unsigned int lcore_id;
 307         struct rte_event ev;
 308
 309         if (event_p_id < 0)
 310                 return;
 311
 312         lcore_id = rte_lcore_id();
 313         lconf = &lcore_conf[lcore_id];
 314
 315         RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id);
 316         while (!force_quit) {
 317                 if (!rte_event_dequeue_burst(event_d_id, event_p_id, &ev, 1, 0))
 318                         continue;
 319
 320                 if (lpm_process_event_pkt(lconf, ev.mbuf) == BAD_PORT) {
 321                         rte_pktmbuf_free(ev.mbuf);
 322                         continue;
 323                 }
 324
 325                 if (flags & L3FWD_EVENT_TX_ENQ) {
 326                         ev.queue_id = tx_q_id;
 327                         ev.op = RTE_EVENT_OP_FORWARD;
 328                         while (rte_event_enqueue_burst(event_d_id, event_p_id,
 329                                                 &ev, 1) && !force_quit)
 330                                 ;
 331                 }
 332
 333                 if (flags & L3FWD_EVENT_TX_DIRECT) {
 334                         rte_event_eth_tx_adapter_txq_set(ev.mbuf, 0);
 335                         while (!rte_event_eth_tx_adapter_enqueue(event_d_id,
 336                                                 event_p_id, &ev, 1, 0) &&
 337                                         !force_quit)
 338                                 ;
 339                 }
 340         }
 341 }
 342
 343 static __rte_always_inline void
 344 lpm_event_loop_burst(struct l3fwd_event_resources *evt_rsrc,
 345                 const uint8_t flags)
 346 {
 347         const int event_p_id = l3fwd_get_free_event_port(evt_rsrc);
 348         const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[
 349                 evt_rsrc->evq.nb_queues - 1];
 350         const uint8_t event_d_id = evt_rsrc->event_d_id;
 351         const uint16_t deq_len = evt_rsrc->deq_depth;
 352         struct rte_event events[MAX_PKT_BURST];
 353         struct lcore_conf *lconf;
 354         unsigned int lcore_id;
 355         int i, nb_enq, nb_deq;
 356
 357         if (event_p_id < 0)
 358                 return;
 359
 360         lcore_id = rte_lcore_id();
 361
 362         lconf = &lcore_conf[lcore_id];
 363
 364         RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id);
 365
 366         while (!force_quit) {
 367                 /* Read events from RX queues */
 368                 nb_deq = rte_event_dequeue_burst(event_d_id, event_p_id,
 369                                 events, deq_len, 0);
 370                 if (nb_deq == 0) {
 371                         rte_pause();
 372                         continue;
 373                 }
 374
 375                 for (i = 0; i < nb_deq; i++) {
 376                         if (flags & L3FWD_EVENT_TX_ENQ) {
 377                                 events[i].queue_id = tx_q_id;
 378                                 events[i].op = RTE_EVENT_OP_FORWARD;
 379                         }
 380
 381                         if (flags & L3FWD_EVENT_TX_DIRECT)
 382                                 rte_event_eth_tx_adapter_txq_set(events[i].mbuf,
 383                                                                  0);
 384
 385                         lpm_process_event_pkt(lconf, events[i].mbuf);
 386                 }
 387
 388                 if (flags & L3FWD_EVENT_TX_ENQ) {
 389                         nb_enq = rte_event_enqueue_burst(event_d_id, event_p_id,
 390                                         events, nb_deq);
 391                         while (nb_enq < nb_deq && !force_quit)
 392                                 nb_enq += rte_event_enqueue_burst(event_d_id,
 393                                                 event_p_id, events + nb_enq,
 394                                                 nb_deq - nb_enq);
 395                 }
 396
 397                 if (flags & L3FWD_EVENT_TX_DIRECT) {
 398                         nb_enq = rte_event_eth_tx_adapter_enqueue(event_d_id,
 399                                         event_p_id, events, nb_deq, 0);
 400                         while (nb_enq < nb_deq && !force_quit)
 401                                 nb_enq += rte_event_eth_tx_adapter_enqueue(
 402                                                 event_d_id, event_p_id,
 403                                                 events + nb_enq,
 404                                                 nb_deq - nb_enq, 0);
 405                 }
 406         }
 407 }
 408
 409 static __rte_always_inline void
 410 lpm_event_loop(struct l3fwd_event_resources *evt_rsrc,
 411                  const uint8_t flags)
 412 {
 413         if (flags & L3FWD_EVENT_SINGLE)
 414                 lpm_event_loop_single(evt_rsrc, flags);
 415         if (flags & L3FWD_EVENT_BURST)
 416                 lpm_event_loop_burst(evt_rsrc, flags);
 417 }
 418
 419 int __rte_noinline
 420 lpm_event_main_loop_tx_d(__attribute__((unused)) void *dummy)
 421 {
 422         struct l3fwd_event_resources *evt_rsrc =
 423                                         l3fwd_get_eventdev_rsrc();
 424
 425         lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT | L3FWD_EVENT_SINGLE);
 426         return 0;
 427 }
 428
 429 int __rte_noinline
 430 lpm_event_main_loop_tx_d_burst(__attribute__((unused)) void *dummy)
 431 {
 432         struct l3fwd_event_resources *evt_rsrc =
 433                                         l3fwd_get_eventdev_rsrc();
 434
 435         lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT | L3FWD_EVENT_BURST);
 436         return 0;
 437 }
 438
 439 int __rte_noinline
 440 lpm_event_main_loop_tx_q(__attribute__((unused)) void *dummy)
 441 {
 442         struct l3fwd_event_resources *evt_rsrc =
 443                                         l3fwd_get_eventdev_rsrc();
 444
 445         lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ | L3FWD_EVENT_SINGLE);
 446         return 0;
 447 }
 448
 449 int __rte_noinline
 450 lpm_event_main_loop_tx_q_burst(__attribute__((unused)) void *dummy)
 451 {
 452         struct l3fwd_event_resources *evt_rsrc =
 453                                         l3fwd_get_eventdev_rsrc();
 454
 455         lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ | L3FWD_EVENT_BURST);
 456         return 0;
 457 }
 458
 459 void
 460 setup_lpm(const int socketid)
 461 {
 462         struct rte_lpm6_config config;
 463         struct rte_lpm_config config_ipv4;
 464         unsigned i;
 465         int ret;
 466         char s[64];
 467         char abuf[INET6_ADDRSTRLEN];
 468
 469         /* create the LPM table */
 470         config_ipv4.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
 471         config_ipv4.number_tbl8s = IPV4_L3FWD_LPM_NUMBER_TBL8S;
 472         config_ipv4.flags = 0;
 473         snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
 474         ipv4_l3fwd_lpm_lookup_struct[socketid] =
 475                         rte_lpm_create(s, socketid, &config_ipv4);
 476         if (ipv4_l3fwd_lpm_lookup_struct[socketid] == NULL)
 477                 rte_exit(EXIT_FAILURE,
 478                         "Unable to create the l3fwd LPM table on socket %d\n",
 479                         socketid);
 480
 481         /* populate the LPM table */
 482         for (i = 0; i < RTE_DIM(ipv4_l3fwd_lpm_route_array); i++) {
 483                 struct in_addr in;
 484
 485                 /* skip unused ports */
 486                 if ((1 << ipv4_l3fwd_lpm_route_array[i].if_out &
 487                                 enabled_port_mask) == 0)
 488                         continue;
 489
 490                 ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid],
 491                         ipv4_l3fwd_lpm_route_array[i].ip,
 492                         ipv4_l3fwd_lpm_route_array[i].depth,
 493                         ipv4_l3fwd_lpm_route_array[i].if_out);
 494
 495                 if (ret < 0) {
 496                         rte_exit(EXIT_FAILURE,
 497                                 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
 498                                 i, socketid);
 499                 }
 500
 501                 in.s_addr = htonl(ipv4_l3fwd_lpm_route_array[i].ip);
 502                 printf("LPM: Adding route %s / %d (%d)\n",
 503                        inet_ntop(AF_INET, &in, abuf, sizeof(abuf)),
 504                         ipv4_l3fwd_lpm_route_array[i].depth,
 505                         ipv4_l3fwd_lpm_route_array[i].if_out);
 506         }
 507
 508         /* create the LPM6 table */
 509         snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid);
 510
 511         config.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
 512         config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
 513         config.flags = 0;
 514         ipv6_l3fwd_lpm_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
 515                                 &config);
 516         if (ipv6_l3fwd_lpm_lookup_struct[socketid] == NULL)
 517                 rte_exit(EXIT_FAILURE,
 518                         "Unable to create the l3fwd LPM table on socket %d\n",
 519                         socketid);
 520
 521         /* populate the LPM table */
 522         for (i = 0; i < RTE_DIM(ipv6_l3fwd_lpm_route_array); i++) {
 523
 524                 /* skip unused ports */
 525                 if ((1 << ipv6_l3fwd_lpm_route_array[i].if_out &
 526                                 enabled_port_mask) == 0)
 527                         continue;
 528
 529                 ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid],
 530                         ipv6_l3fwd_lpm_route_array[i].ip,
 531                         ipv6_l3fwd_lpm_route_array[i].depth,
 532                         ipv6_l3fwd_lpm_route_array[i].if_out);
 533
 534                 if (ret < 0) {
 535                         rte_exit(EXIT_FAILURE,
 536                                 "Unable to add entry %u to the l3fwd LPM table on socket %d\n",
 537                                 i, socketid);
 538                 }
 539
 540                 printf("LPM: Adding route %s / %d (%d)\n",
 541                        inet_ntop(AF_INET6, ipv6_l3fwd_lpm_route_array[i].ip,
 542                                  abuf, sizeof(abuf)),
 543                        ipv6_l3fwd_lpm_route_array[i].depth,
 544                        ipv6_l3fwd_lpm_route_array[i].if_out);
 545         }
 546 }
 547
 548 int
 549 lpm_check_ptype(int portid)
 550 {
 551         int i, ret;
 552         int ptype_l3_ipv4 = 0, ptype_l3_ipv6 = 0;
 553         uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
 554
 555         ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
 556         if (ret <= 0)
 557                 return 0;
 558
 559         uint32_t ptypes[ret];
 560
 561         ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
 562         for (i = 0; i < ret; ++i) {
 563                 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
 564                         ptype_l3_ipv4 = 1;
 565                 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
 566                         ptype_l3_ipv6 = 1;
 567         }
 568
 569         if (ptype_l3_ipv4 == 0)
 570                 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
 571
 572         if (ptype_l3_ipv6 == 0)
 573                 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
 574
 575         if (ptype_l3_ipv4 && ptype_l3_ipv6)
 576                 return 1;
 577
 578         return 0;
 579
 580 }
 581
 582 static inline void
 583 lpm_parse_ptype(struct rte_mbuf *m)
 584 {
 585         struct rte_ether_hdr *eth_hdr;
 586         uint32_t packet_type = RTE_PTYPE_UNKNOWN;
 587         uint16_t ether_type;
 588
 589         eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
 590         ether_type = eth_hdr->ether_type;
 591         if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
 592                 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
 593         else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
 594                 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
 595
 596         m->packet_type = packet_type;
 597 }
 598
 599 uint16_t
 600 lpm_cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
 601                    struct rte_mbuf *pkts[], uint16_t nb_pkts,
 602                    uint16_t max_pkts __rte_unused,
 603                    void *user_param __rte_unused)
 604 {
 605         unsigned int i;
 606
 607         if (unlikely(nb_pkts == 0))
 608                 return nb_pkts;
 609         rte_prefetch0(rte_pktmbuf_mtod(pkts[0], struct ether_hdr *));
 610         for (i = 0; i < (unsigned int) (nb_pkts - 1); ++i) {
 611                 rte_prefetch0(rte_pktmbuf_mtod(pkts[i+1],
 612                         struct ether_hdr *));
 613                 lpm_parse_ptype(pkts[i]);
 614         }
 615         lpm_parse_ptype(pkts[i]);
 616
 617         return nb_pkts;
 618 }
 619
 620 /* Return ipv4/ipv6 lpm fwd lookup struct. */
 621 void *
 622 lpm_get_ipv4_l3fwd_lookup_struct(const int socketid)
 623 {
 624         return ipv4_l3fwd_lpm_lookup_struct[socketid];
 625 }
 626
 627 void *
 628 lpm_get_ipv6_l3fwd_lookup_struct(const int socketid)
 629 {
 630         return ipv6_l3fwd_lpm_lookup_struct[socketid];
 631 }