examples/l3fwd-vf/main.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  *  version: DPDK.L.1.2.3-3
  34  */
  35
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <stdint.h>
  39 #include <inttypes.h>
  40 #include <sys/types.h>
  41 #include <string.h>
  42 #include <sys/queue.h>
  43 #include <stdarg.h>
  44 #include <errno.h>
  45 #include <getopt.h>
  46
  47 #include <rte_common.h>
  48 #include <rte_byteorder.h>
  49 #include <rte_log.h>
  50 #include <rte_memory.h>
  51 #include <rte_memcpy.h>
  52 #include <rte_memzone.h>
  53 #include <rte_tailq.h>
  54 #include <rte_eal.h>
  55 #include <rte_per_lcore.h>
  56 #include <rte_launch.h>
  57 #include <rte_atomic.h>
  58 #include <rte_cycles.h>
  59 #include <rte_prefetch.h>
  60 #include <rte_lcore.h>
  61 #include <rte_per_lcore.h>
  62 #include <rte_branch_prediction.h>
  63 #include <rte_interrupts.h>
  64 #include <rte_pci.h>
  65 #include <rte_random.h>
  66 #include <rte_debug.h>
  67 #include <rte_ether.h>
  68 #include <rte_ethdev.h>
  69 #include <rte_ring.h>
  70 #include <rte_mempool.h>
  71 #include <rte_mbuf.h>
  72 #include <rte_ip.h>
  73 #include <rte_tcp.h>
  74 #include <rte_udp.h>
  75 #include <rte_string_fns.h>
  76
  77 #include "main.h"
  78
  79 #define APP_LOOKUP_EXACT_MATCH          0
  80 #define APP_LOOKUP_LPM                  1
  81 #define DO_RFC_1812_CHECKS
  82
  83 //#define APP_LOOKUP_METHOD             APP_LOOKUP_EXACT_MATCH
  84 #ifndef APP_LOOKUP_METHOD
  85 #define APP_LOOKUP_METHOD             APP_LOOKUP_LPM
  86 #endif
  87
  88 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
  89 #include <rte_hash.h>
  90 #include <rte_hash_crc.h>
  91 #include <rte_jhash.h>
  92 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
  93 #include <rte_lpm.h>
  94 #else
  95 #error "APP_LOOKUP_METHOD set to incorrect value"
  96 #endif
  97
  98 #define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
  99
 100 #define MAX_PORTS 32
 101
 102 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
 103 #define NB_MBUF   8192
 104
 105 /*
 106  * RX and TX Prefetch, Host, and Write-back threshold values should be
 107  * carefully set for optimal performance. Consult the network
 108  * controller's datasheet and supporting DPDK documentation for guidance
 109  * on how these parameters should be set.
 110  */
 111 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
 112 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
 113 #define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
 114
 115 /*
 116  * These default values are optimized for use with the Intel(R) 82599 10 GbE
 117  * Controller and the DPDK ixgbe PMD. Consider using other values for other
 118  * network controllers and/or network drivers.
 119  */
 120 #define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
 121 #define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
 122 #define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
 123
 124 #define MAX_PKT_BURST 32
 125 #define BURST_TX_DRAIN 200000ULL /* around 100us at 2 Ghz */
 126
 127 #define NB_SOCKETS 8
 128
 129 #define SOCKET0 0
 130
 131 /* Configure how many packets ahead to prefetch, when reading packets */
 132 #define PREFETCH_OFFSET 3
 133
 134 /*
 135  * Configurable number of RX/TX ring descriptors
 136  */
 137 #define RTE_TEST_RX_DESC_DEFAULT 128
 138 #define RTE_TEST_TX_DESC_DEFAULT 512
 139 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 140 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 141
 142 /* ethernet addresses of ports */
 143 static struct ether_addr ports_eth_addr[MAX_PORTS];
 144
 145 /* mask of enabled ports */
 146 static uint32_t enabled_port_mask = 0;
 147 static int numa_on = 1; /**< NUMA is enabled by default. */
 148
 149 struct mbuf_table {
 150         uint16_t len;
 151         struct rte_mbuf *m_table[MAX_PKT_BURST];
 152 };
 153
 154 struct lcore_rx_queue {
 155         uint8_t port_id;
 156         uint8_t queue_id;
 157 } __rte_cache_aligned;
 158
 159 #define MAX_RX_QUEUE_PER_LCORE 16
 160 #define MAX_TX_QUEUE_PER_PORT 1
 161 #define MAX_RX_QUEUE_PER_PORT 1
 162
 163 #define MAX_LCORE_PARAMS 1024
 164 struct lcore_params {
 165         uint8_t port_id;
 166         uint8_t queue_id;
 167         uint8_t lcore_id;
 168 } __rte_cache_aligned;
 169
 170 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 171 static struct lcore_params lcore_params_array_default[] = {
 172         {0, 0, 2},
 173         {0, 1, 2},
 174         {0, 2, 2},
 175         {1, 0, 2},
 176         {1, 1, 2},
 177         {1, 2, 2},
 178         {2, 0, 2},
 179         {3, 0, 3},
 180         {3, 1, 3},
 181 };
 182
 183 static struct lcore_params * lcore_params = lcore_params_array_default;
 184 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
 185                                 sizeof(lcore_params_array_default[0]);
 186
 187 static struct rte_eth_conf port_conf = {
 188         .rxmode = {
 189                 .split_hdr_size = 0,
 190                 .header_split   = 0, /**< Header Split disabled */
 191                 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
 192                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 193                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 194                 .hw_strip_crc   = 1, /**< CRC stripped by hardware */
 195         },
 196         .rx_adv_conf = {
 197                 .rss_conf = {
 198                         .rss_key = NULL,
 199                         .rss_hf = ETH_RSS_IPV4,
 200                 },
 201         },
 202         .txmode = {
 203         },
 204 };
 205
 206 static const struct rte_eth_rxconf rx_conf = {
 207         .rx_thresh = {
 208                 .pthresh = RX_PTHRESH,
 209                 .hthresh = RX_HTHRESH,
 210                 .wthresh = RX_WTHRESH,
 211         },
 212 };
 213
 214 static const struct rte_eth_txconf tx_conf = {
 215         .tx_thresh = {
 216                 .pthresh = TX_PTHRESH,
 217                 .hthresh = TX_HTHRESH,
 218                 .wthresh = TX_WTHRESH,
 219         },
 220         .tx_free_thresh = 0, /* Use PMD default values */
 221         .tx_rs_thresh = 0, /* Use PMD default values */
 222 };
 223
 224 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 225
 226
 227 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 228 struct ipv4_5tuple {
 229         uint32_t ip_dst;
 230         uint32_t ip_src;
 231         uint16_t port_dst;
 232         uint16_t port_src;
 233         uint8_t proto;
 234 } __attribute__((__packed__));
 235
 236 struct l3fwd_route {
 237         struct ipv4_5tuple key;
 238         uint8_t if_out;
 239 };
 240
 241 static struct l3fwd_route l3fwd_route_array[] = {
 242         {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
 243         {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
 244         {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
 245         {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
 246 };
 247
 248 typedef struct rte_hash lookup_struct_t;
 249 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
 250
 251 #define L3FWD_HASH_ENTRIES      1024
 252 struct rte_hash_parameters l3fwd_hash_params = {
 253         .name = "l3fwd_hash_0",
 254         .entries = L3FWD_HASH_ENTRIES,
 255         .bucket_entries = 4,
 256         .key_len = sizeof(struct ipv4_5tuple),
 257         .hash_func = rte_hash_crc,
 258         .hash_func_init_val = 0,
 259         .socket_id = SOCKET0,
 260 };
 261
 262 #define L3FWD_NUM_ROUTES \
 263         (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
 264
 265 static uint8_t l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 266 #endif
 267
 268 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 269 struct l3fwd_route {
 270         uint32_t ip;
 271         uint8_t  depth;
 272         uint8_t  if_out;
 273 };
 274
 275 static struct l3fwd_route l3fwd_route_array[] = {
 276         {IPv4(1,1,1,0), 24, 0},
 277         {IPv4(2,1,1,0), 24, 1},
 278         {IPv4(3,1,1,0), 24, 2},
 279         {IPv4(4,1,1,0), 24, 3},
 280         {IPv4(5,1,1,0), 24, 4},
 281         {IPv4(6,1,1,0), 24, 5},
 282         {IPv4(7,1,1,0), 24, 6},
 283         {IPv4(8,1,1,0), 24, 7},
 284 };
 285
 286 #define L3FWD_NUM_ROUTES \
 287         (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
 288
 289 #define L3FWD_LPM_MAX_RULES     1024
 290
 291 typedef struct rte_lpm lookup_struct_t;
 292 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
 293 #endif
 294
 295 struct lcore_conf {
 296         uint16_t n_rx_queue;
 297         struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 298         uint16_t tx_queue_id;
 299         struct mbuf_table tx_mbufs[MAX_PORTS];
 300         lookup_struct_t * lookup_struct;
 301 } __rte_cache_aligned;
 302
 303 static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
 304
 305 /* Send burst of packets on an output interface */
 306 static inline int
 307 send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port)
 308 {
 309         struct rte_mbuf **m_table;
 310         int ret;
 311         uint16_t queueid;
 312
 313         queueid = qconf->tx_queue_id;
 314         m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
 315
 316         ret = rte_eth_tx_burst(port, queueid, m_table, n);
 317         if (unlikely(ret < n)) {
 318                 do {
 319                         rte_pktmbuf_free(m_table[ret]);
 320                 } while (++ret < n);
 321         }
 322
 323         return 0;
 324 }
 325
 326 /* Enqueue a single packet, and send burst if queue is filled */
 327 static inline int
 328 send_single_packet(struct rte_mbuf *m, uint8_t port)
 329 {
 330         uint32_t lcore_id;
 331         uint16_t len;
 332         struct lcore_conf *qconf;
 333
 334         lcore_id = rte_lcore_id();
 335
 336         qconf = &lcore_conf[lcore_id];
 337         len = qconf->tx_mbufs[port].len;
 338         qconf->tx_mbufs[port].m_table[len] = m;
 339         len++;
 340
 341         /* enough pkts to be sent */
 342         if (unlikely(len == MAX_PKT_BURST)) {
 343                 send_burst(qconf, MAX_PKT_BURST, port);
 344                 len = 0;
 345         }
 346
 347         qconf->tx_mbufs[port].len = len;
 348         return 0;
 349 }
 350
 351 #ifdef DO_RFC_1812_CHECKS
 352 static inline int
 353 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
 354 {
 355         /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
 356         /*
 357          * 1. The packet length reported by the Link Layer must be large
 358          * enough to hold the minimum length legal IP datagram (20 bytes).
 359          */
 360         if (link_len < sizeof(struct ipv4_hdr))
 361                 return -1;
 362
 363         /* 2. The IP checksum must be correct. */
 364         /* this is checked in H/W */
 365
 366         /*
 367          * 3. The IP version number must be 4. If the version number is not 4
 368          * then the packet may be another version of IP, such as IPng or
 369          * ST-II.
 370          */
 371         if (((pkt->version_ihl) >> 4) != 4)
 372                 return -3;
 373         /*
 374          * 4. The IP header length field must be large enough to hold the
 375          * minimum length legal IP datagram (20 bytes = 5 words).
 376          */
 377         if ((pkt->version_ihl & 0xf) < 5)
 378                 return -4;
 379
 380         /*
 381          * 5. The IP total length field must be large enough to hold the IP
 382          * datagram header, whose length is specified in the IP header length
 383          * field.
 384          */
 385         if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
 386                 return -5;
 387
 388         return 0;
 389 }
 390 #endif
 391
 392 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 393 static void
 394 print_key(struct ipv4_5tuple key)
 395 {
 396         printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, proto = %d\n",
 397                (unsigned)key.ip_dst, (unsigned)key.ip_src, key.port_dst, key.port_src, key.proto);
 398 }
 399
 400 static inline uint8_t
 401 get_dst_port(struct ipv4_hdr *ipv4_hdr,  uint8_t portid, lookup_struct_t * l3fwd_lookup_struct)
 402 {
 403         struct ipv4_5tuple key;
 404         struct tcp_hdr *tcp;
 405         struct udp_hdr *udp;
 406         int ret = 0;
 407
 408         key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
 409         key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
 410         key.proto = ipv4_hdr->next_proto_id;
 411
 412         switch (ipv4_hdr->next_proto_id) {
 413         case IPPROTO_TCP:
 414                 tcp = (struct tcp_hdr *)((unsigned char *) ipv4_hdr +
 415                                         sizeof(struct ipv4_hdr));
 416                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 417                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 418                 break;
 419
 420         case IPPROTO_UDP:
 421                 udp = (struct udp_hdr *)((unsigned char *) ipv4_hdr +
 422                                         sizeof(struct ipv4_hdr));
 423                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 424                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 425                 break;
 426
 427         default:
 428                 key.port_dst = 0;
 429                 key.port_src = 0;
 430         }
 431
 432         /* Find destination port */
 433         ret = rte_hash_lookup(l3fwd_lookup_struct, (const void *)&key);
 434         return (uint8_t)((ret < 0)? portid : l3fwd_out_if[ret]);
 435 }
 436 #endif
 437
 438 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 439 static inline uint8_t
 440 get_dst_port(struct ipv4_hdr *ipv4_hdr,  uint8_t portid, lookup_struct_t * l3fwd_lookup_struct)
 441 {
 442         uint8_t next_hop;
 443
 444         return (uint8_t) ((rte_lpm_lookup(l3fwd_lookup_struct,
 445                         rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
 446                         next_hop : portid);
 447 }
 448 #endif
 449
 450 static inline void
 451 l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid, lookup_struct_t * l3fwd_lookup_struct)
 452 {
 453         struct ether_hdr *eth_hdr;
 454         struct ipv4_hdr *ipv4_hdr;
 455         void *tmp;
 456         uint8_t dst_port;
 457
 458         eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
 459
 460         ipv4_hdr = (struct ipv4_hdr *)(rte_pktmbuf_mtod(m, unsigned char *) +
 461                                 sizeof(struct ether_hdr));
 462
 463 #ifdef DO_RFC_1812_CHECKS
 464         /* Check to make sure the packet is valid (RFC1812) */
 465         if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt.pkt_len) < 0) {
 466                 rte_pktmbuf_free(m);
 467                 return;
 468         }
 469 #endif
 470
 471         dst_port = get_dst_port(ipv4_hdr, portid, l3fwd_lookup_struct);
 472         if (dst_port >= MAX_PORTS || (enabled_port_mask & 1 << dst_port) == 0)
 473                 dst_port = portid;
 474
 475         /* 00:09:c0:00:00:xx */
 476         tmp = &eth_hdr->d_addr.addr_bytes[0];
 477         *((uint64_t *)tmp) = 0x000000c00900 + (dst_port << 24);
 478
 479 #ifdef DO_RFC_1812_CHECKS
 480         /* Update time to live and header checksum */
 481         --(ipv4_hdr->time_to_live);
 482         ++(ipv4_hdr->hdr_checksum);
 483 #endif
 484
 485         /* src addr */
 486         ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
 487
 488         send_single_packet(m, dst_port);
 489
 490 }
 491
 492 /* main processing loop */
 493 static __attribute__((noreturn)) int
 494 main_loop(__attribute__((unused)) void *dummy)
 495 {
 496         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 497         unsigned lcore_id;
 498         uint64_t prev_tsc = 0;
 499         uint64_t diff_tsc, cur_tsc;
 500         int i, j, nb_rx;
 501         uint8_t portid, queueid;
 502         struct lcore_conf *qconf;
 503
 504         lcore_id = rte_lcore_id();
 505         qconf = &lcore_conf[lcore_id];
 506
 507         if (qconf->n_rx_queue == 0) {
 508                 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
 509                 while(1);
 510         }
 511
 512         RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
 513
 514         for (i = 0; i < qconf->n_rx_queue; i++) {
 515
 516                 portid = qconf->rx_queue_list[i].port_id;
 517                 queueid = qconf->rx_queue_list[i].queue_id;
 518                 RTE_LOG(INFO, L3FWD, " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n", lcore_id,
 519                         portid, queueid);
 520         }
 521
 522         while (1) {
 523
 524                 cur_tsc = rte_rdtsc();
 525
 526                 /*
 527                  * TX burst queue drain
 528                  */
 529                 diff_tsc = cur_tsc - prev_tsc;
 530                 if (unlikely(diff_tsc > BURST_TX_DRAIN)) {
 531
 532                         /*
 533                          * This could be optimized (use queueid instead of
 534                          * portid), but it is not called so often
 535                          */
 536                         for (portid = 0; portid < MAX_PORTS; portid++) {
 537                                 if (qconf->tx_mbufs[portid].len == 0)
 538                                         continue;
 539                                 send_burst(&lcore_conf[lcore_id],
 540                                         qconf->tx_mbufs[portid].len,
 541                                         portid);
 542                                 qconf->tx_mbufs[portid].len = 0;
 543                         }
 544
 545                         prev_tsc = cur_tsc;
 546                 }
 547
 548                 /*
 549                  * Read packet from RX queues
 550                  */
 551                 for (i = 0; i < qconf->n_rx_queue; ++i) {
 552
 553                         portid = qconf->rx_queue_list[i].port_id;
 554                         queueid = qconf->rx_queue_list[i].queue_id;
 555                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, MAX_PKT_BURST);
 556
 557                         /* Prefetch first packets */
 558                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
 559                                 rte_prefetch0(rte_pktmbuf_mtod(
 560                                                 pkts_burst[j], void *));
 561                         }
 562
 563                         /* Prefetch and forward already prefetched packets */
 564                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
 565                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
 566                                                 j + PREFETCH_OFFSET], void *));
 567                                 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
 568                         }
 569
 570                         /* Forward remaining prefetched packets */
 571                         for (; j < nb_rx; j++) {
 572                                 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
 573                         }
 574                 }
 575         }
 576 }
 577
 578 static int
 579 check_lcore_params(void)
 580 {
 581         uint8_t queue, lcore;
 582         uint16_t i;
 583         int socketid;
 584
 585         for (i = 0; i < nb_lcore_params; ++i) {
 586                 queue = lcore_params[i].queue_id;
 587                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
 588                         printf("invalid queue number: %hhu\n", queue);
 589                         return -1;
 590                 }
 591                 lcore = lcore_params[i].lcore_id;
 592                 if (!rte_lcore_is_enabled(lcore)) {
 593                         printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
 594                         return -1;
 595                 }
 596                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
 597                         (numa_on == 0)) {
 598                         printf("warning: lcore %hhu is on socket %d with numa off \n",
 599                                 lcore, socketid);
 600                 }
 601         }
 602         return 0;
 603 }
 604
 605 static int
 606 check_port_config(const unsigned nb_ports)
 607 {
 608         unsigned portid;
 609         uint16_t i;
 610
 611         for (i = 0; i < nb_lcore_params; ++i) {
 612                 portid = lcore_params[i].port_id;
 613                 if ((enabled_port_mask & (1 << portid)) == 0) {
 614                         printf("port %u is not enabled in port mask\n", portid);
 615                         return -1;
 616                 }
 617                 if (portid >= nb_ports) {
 618                         printf("port %u is not present on the board\n", portid);
 619                         return -1;
 620                 }
 621         }
 622         return 0;
 623 }
 624
 625 static uint8_t
 626 get_port_n_rx_queues(const uint8_t port)
 627 {
 628         int queue = -1;
 629         uint16_t i;
 630
 631         for (i = 0; i < nb_lcore_params; ++i) {
 632                 if (lcore_params[i].port_id == port && lcore_params[i].queue_id > queue)
 633                         queue = lcore_params[i].queue_id;
 634         }
 635         return (uint8_t)(++queue);
 636 }
 637
 638 static int
 639 init_lcore_rx_queues(void)
 640 {
 641         uint16_t i, nb_rx_queue;
 642         uint8_t lcore;
 643
 644         for (i = 0; i < nb_lcore_params; ++i) {
 645                 lcore = lcore_params[i].lcore_id;
 646                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
 647                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
 648                         printf("error: too many queues (%u) for lcore: %u\n",
 649                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
 650                         return -1;
 651                 } else {
 652                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
 653                                 lcore_params[i].port_id;
 654                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
 655                                 lcore_params[i].queue_id;
 656                         lcore_conf[lcore].n_rx_queue++;
 657                 }
 658         }
 659         return 0;
 660 }
 661
 662 /* display usage */
 663 static void
 664 print_usage(const char *prgname)
 665 {
 666         printf ("%s [EAL options] -- -p PORTMASK"
 667                 "  [--config (port,queue,lcore)[,(port,queue,lcore]]\n"
 668                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 669                 "  --config (port,queue,lcore): rx queues configuration\n"
 670                 "  --no-numa: optional, disable numa awareness\n",
 671                 prgname);
 672 }
 673
 674 static int
 675 parse_portmask(const char *portmask)
 676 {
 677         char *end = NULL;
 678         unsigned long pm;
 679
 680         /* parse hexadecimal string */
 681         pm = strtoul(portmask, &end, 16);
 682         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 683                 return -1;
 684
 685         if (pm == 0)
 686                 return -1;
 687
 688         return pm;
 689 }
 690
 691 static int
 692 parse_config(const char *q_arg)
 693 {
 694         char s[256];
 695         const char *p, *p0 = q_arg;
 696         char *end;
 697         enum fieldnames {
 698                 FLD_PORT = 0,
 699                 FLD_QUEUE,
 700                 FLD_LCORE,
 701                 _NUM_FLD
 702         };
 703         unsigned long int_fld[_NUM_FLD];
 704         char *str_fld[_NUM_FLD];
 705         int i;
 706         unsigned size;
 707
 708         nb_lcore_params = 0;
 709
 710         while ((p = strchr(p0,'(')) != NULL) {
 711                 ++p;
 712                 if((p0 = strchr(p,')')) == NULL)
 713                         return -1;
 714
 715                 size = p0 - p;
 716                 if(size >= sizeof(s))
 717                         return -1;
 718
 719                 rte_snprintf(s, sizeof(s), "%.*s", size, p);
 720                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
 721                         return -1;
 722                 for (i = 0; i < _NUM_FLD; i++){
 723                         errno = 0;
 724                         int_fld[i] = strtoul(str_fld[i], &end, 0);
 725                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
 726                                 return -1;
 727                 }
 728                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
 729                         printf("exceeded max number of lcore params: %hu\n",
 730                                 nb_lcore_params);
 731                         return -1;
 732                 }
 733                 lcore_params_array[nb_lcore_params].port_id = (uint8_t)int_fld[FLD_PORT];
 734                 lcore_params_array[nb_lcore_params].queue_id = (uint8_t)int_fld[FLD_QUEUE];
 735                 lcore_params_array[nb_lcore_params].lcore_id = (uint8_t)int_fld[FLD_LCORE];
 736                 ++nb_lcore_params;
 737         }
 738         lcore_params = lcore_params_array;
 739         return 0;
 740 }
 741
 742 /* Parse the argument given in the command line of the application */
 743 static int
 744 parse_args(int argc, char **argv)
 745 {
 746         int opt, ret;
 747         char **argvopt;
 748         int option_index;
 749         char *prgname = argv[0];
 750         static struct option lgopts[] = {
 751                 {"config", 1, 0, 0},
 752                 {"no-numa", 0, 0, 0},
 753                 {NULL, 0, 0, 0}
 754         };
 755
 756         argvopt = argv;
 757
 758         while ((opt = getopt_long(argc, argvopt, "p:",
 759                                 lgopts, &option_index)) != EOF) {
 760
 761                 switch (opt) {
 762                 /* portmask */
 763                 case 'p':
 764                         enabled_port_mask = parse_portmask(optarg);
 765                         if (enabled_port_mask == 0) {
 766                                 printf("invalid portmask\n");
 767                                 print_usage(prgname);
 768                                 return -1;
 769                         }
 770                         break;
 771
 772                 /* long options */
 773                 case 0:
 774                         if (!strcmp(lgopts[option_index].name, "config")) {
 775                                 ret = parse_config(optarg);
 776                                 if (ret) {
 777                                         printf("invalid config\n");
 778                                         print_usage(prgname);
 779                                         return -1;
 780                                 }
 781                         }
 782
 783                         if (!strcmp(lgopts[option_index].name, "no-numa")) {
 784                                 printf("numa is disabled \n");
 785                                 numa_on = 0;
 786                         }
 787                         break;
 788
 789                 default:
 790                         print_usage(prgname);
 791                         return -1;
 792                 }
 793         }
 794
 795         if (optind >= 0)
 796                 argv[optind-1] = prgname;
 797
 798         ret = optind-1;
 799         optind = 0; /* reset getopt lib */
 800         return ret;
 801 }
 802
 803 static void
 804 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
 805 {
 806         printf ("%s%02X:%02X:%02X:%02X:%02X:%02X", name,
 807                 eth_addr->addr_bytes[0],
 808                 eth_addr->addr_bytes[1],
 809                 eth_addr->addr_bytes[2],
 810                 eth_addr->addr_bytes[3],
 811                 eth_addr->addr_bytes[4],
 812                 eth_addr->addr_bytes[5]);
 813 }
 814
 815 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 816 static void
 817 setup_hash(int socketid)
 818 {
 819         unsigned i;
 820         int ret;
 821         char s[64];
 822
 823         /* create  hashes */
 824         rte_snprintf(s, sizeof(s), "l3fwd_hash_%d", socketid);
 825         l3fwd_hash_params.name = s;
 826         l3fwd_hash_params.socket_id = socketid;
 827         l3fwd_lookup_struct[socketid] = rte_hash_create(&l3fwd_hash_params);
 828         if (l3fwd_lookup_struct[socketid] == NULL)
 829                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
 830                                 "socket %d\n", socketid);
 831
 832         /* populate the hash */
 833         for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
 834                 ret = rte_hash_add_key (l3fwd_lookup_struct[socketid],
 835                                 (void *) &l3fwd_route_array[i].key);
 836                 if (ret < 0) {
 837                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
 838                                 "l3fwd hash on socket %d\n", i, socketid);
 839                 }
 840                 l3fwd_out_if[ret] = l3fwd_route_array[i].if_out;
 841                 printf("Hash: Adding key\n");
 842                 print_key(l3fwd_route_array[i].key);
 843         }
 844 }
 845 #endif
 846
 847 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 848 static void
 849 setup_lpm(int socketid)
 850 {
 851         unsigned i;
 852         int ret;
 853         char s[64];
 854
 855         /* create the LPM table */
 856         rte_snprintf(s, sizeof(s), "L3FWD_LPM_%d", socketid);
 857         l3fwd_lookup_struct[socketid] = rte_lpm_create(s, socketid,
 858                                 L3FWD_LPM_MAX_RULES, RTE_LPM_MEMZONE);
 859         if (l3fwd_lookup_struct[socketid] == NULL)
 860                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
 861                                 " on socket %d\n", socketid);
 862
 863         /* populate the LPM table */
 864         for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
 865                 ret = rte_lpm_add(l3fwd_lookup_struct[socketid],
 866                         l3fwd_route_array[i].ip,
 867                         l3fwd_route_array[i].depth,
 868                         l3fwd_route_array[i].if_out);
 869
 870                 if (ret < 0) {
 871                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
 872                                 "l3fwd LPM table on socket %d\n",
 873                                 i, socketid);
 874                 }
 875
 876                 printf("LPM: Adding route 0x%08x / %d (%d)\n",
 877                         (unsigned)l3fwd_route_array[i].ip,
 878                         l3fwd_route_array[i].depth,
 879                         l3fwd_route_array[i].if_out);
 880         }
 881 }
 882 #endif
 883
 884 static int
 885 init_mem(void)
 886 {
 887         struct lcore_conf *qconf;
 888         int socketid;
 889         unsigned lcore_id;
 890         char s[64];
 891
 892         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 893                 if (rte_lcore_is_enabled(lcore_id) == 0)
 894                         continue;
 895
 896                 if (numa_on)
 897                         socketid = rte_lcore_to_socket_id(lcore_id);
 898                 else
 899                         socketid = 0;
 900
 901                 if (socketid >= NB_SOCKETS) {
 902                         rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n",
 903                                 socketid, lcore_id, NB_SOCKETS);
 904                 }
 905                 if (pktmbuf_pool[socketid] == NULL) {
 906                         rte_snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 907                         pktmbuf_pool[socketid] =
 908                                 rte_mempool_create(s, NB_MBUF, MBUF_SIZE, 32,
 909                                         sizeof(struct rte_pktmbuf_pool_private),
 910                                         rte_pktmbuf_pool_init, NULL,
 911                                         rte_pktmbuf_init, NULL,
 912                                         socketid, 0);
 913                         if (pktmbuf_pool[socketid] == NULL)
 914                                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool on socket %d\n", socketid);
 915                         else
 916                                 printf("Allocated mbuf pool on socket %d\n", socketid);
 917
 918 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 919                         setup_lpm(socketid);
 920 #else
 921                         setup_hash(socketid);
 922 #endif
 923                 }
 924                 qconf = &lcore_conf[lcore_id];
 925                 qconf->lookup_struct = l3fwd_lookup_struct[socketid];
 926         }
 927         return 0;
 928 }
 929
 930 int
 931 MAIN(int argc, char **argv)
 932 {
 933         struct lcore_conf *qconf;
 934         int ret;
 935         unsigned nb_ports;
 936         uint16_t queueid;
 937         unsigned lcore_id;
 938         uint8_t portid, nb_rx_queue, queue, socketid;
 939
 940         /* init EAL */
 941         ret = rte_eal_init(argc, argv);
 942         if (ret < 0)
 943                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
 944         argc -= ret;
 945         argv += ret;
 946
 947         /* parse application arguments (after the EAL ones) */
 948         ret = parse_args(argc, argv);
 949         if (ret < 0)
 950                 rte_exit(EXIT_FAILURE, "Invalid L3FWD-VF parameters\n");
 951
 952         if (check_lcore_params() < 0)
 953                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
 954
 955         ret = init_lcore_rx_queues();
 956         if (ret < 0)
 957                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
 958
 959         ret = init_mem();
 960         if (ret < 0)
 961                 rte_exit(EXIT_FAILURE, "init_mem failed\n");
 962
 963         /* init driver */
 964 #ifdef RTE_LIBRTE_IGB_PMD
 965         if (rte_igb_pmd_init() < 0)
 966                 rte_exit(EXIT_FAILURE, "Cannot init igb pmd\n");
 967 #endif
 968 #ifdef RTE_LIBRTE_IXGBE_PMD
 969         if (rte_ixgbe_pmd_init() < 0)
 970                 rte_exit(EXIT_FAILURE, "Cannot init ixgbe pmd\n");
 971
 972         if (rte_ixgbevf_pmd_init() < 0)
 973                 rte_exit(EXIT_FAILURE, "Cannot init ixgbevf pmd\n");
 974 #endif
 975
 976         if (rte_eal_pci_probe() < 0)
 977                 rte_exit(EXIT_FAILURE, "Cannot probe PCI\n");
 978
 979         nb_ports = rte_eth_dev_count();
 980         if (nb_ports > MAX_PORTS)
 981                 nb_ports = MAX_PORTS;
 982
 983         if (check_port_config(nb_ports) < 0)
 984                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
 985
 986         /* initialize all ports */
 987         for (portid = 0; portid < nb_ports; portid++) {
 988                 /* skip ports that are not enabled */
 989                 if ((enabled_port_mask & (1 << portid)) == 0) {
 990                         printf("\nSkipping disabled port %d\n", portid);
 991                         continue;
 992                 }
 993
 994                 /* init port */
 995                 printf("Initializing port %d ... ", portid );
 996                 fflush(stdout);
 997
 998                 /* must always equal(=1) */
 999                 nb_rx_queue = get_port_n_rx_queues(portid);
1000
1001                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
1002                         nb_rx_queue, (unsigned)1 );
1003                 ret = rte_eth_dev_configure(portid, nb_rx_queue, 1, &port_conf);
1004                 if (ret < 0)
1005                         rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
1006                                 ret, portid);
1007
1008                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
1009                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1010                 printf(", ");
1011
1012                 /* init one TX queue */
1013                 socketid = 0;
1014
1015                 printf("txq=%d,%d ", 0, socketid);
1016                 fflush(stdout);
1017                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
1018                                                  socketid, &tx_conf);
1019                 if (ret < 0)
1020                         rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
1021                                 "port=%d\n", ret, portid);
1022
1023                 printf("\n");
1024         }
1025
1026         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1027                 if (rte_lcore_is_enabled(lcore_id) == 0)
1028                         continue;
1029                 qconf = &lcore_conf[lcore_id];
1030                 qconf->tx_queue_id = 0;
1031
1032                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
1033                 fflush(stdout);
1034                 /* init RX queues */
1035                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
1036                         portid = qconf->rx_queue_list[queue].port_id;
1037                         queueid = qconf->rx_queue_list[queue].queue_id;
1038
1039                         if (numa_on)
1040                                 socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
1041                         else
1042                                 socketid = 0;
1043
1044                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
1045                         fflush(stdout);
1046
1047                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
1048                                                 socketid, &rx_conf, pktmbuf_pool[socketid]);
1049                         if (ret < 0)
1050                                 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
1051                                                 "port=%d\n", ret, portid);
1052                 }
1053         }
1054         printf("\n");
1055
1056         /* start ports */
1057         for (portid = 0; portid < nb_ports; portid++) {
1058                 if ((enabled_port_mask & (1 << portid)) == 0) {
1059                         continue;
1060                 }
1061                 /* Start device */
1062                 ret = rte_eth_dev_start(portid);
1063                 if (ret < 0)
1064                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
1065                                 ret, portid);
1066
1067                 printf("done: Port %d\n", portid);
1068
1069         }
1070
1071         /* launch per-lcore init on every lcore */
1072         rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1073         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1074                 if (rte_eal_wait_lcore(lcore_id) < 0)
1075                         return -1;
1076         }
1077
1078         return 0;
1079 }