examples/ip_reassembly/main.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <stdint.h>
   8 #include <inttypes.h>
   9 #include <sys/types.h>
  10 #include <string.h>
  11 #include <sys/queue.h>
  12 #include <stdarg.h>
  13 #include <errno.h>
  14 #include <getopt.h>
  15 #include <signal.h>
  16 #include <sys/param.h>
  17
  18 #include <rte_common.h>
  19 #include <rte_byteorder.h>
  20 #include <rte_log.h>
  21 #include <rte_memory.h>
  22 #include <rte_memcpy.h>
  23 #include <rte_eal.h>
  24 #include <rte_launch.h>
  25 #include <rte_cycles.h>
  26 #include <rte_prefetch.h>
  27 #include <rte_lcore.h>
  28 #include <rte_per_lcore.h>
  29 #include <rte_branch_prediction.h>
  30 #include <rte_interrupts.h>
  31 #include <rte_random.h>
  32 #include <rte_debug.h>
  33 #include <rte_ether.h>
  34 #include <rte_ethdev.h>
  35 #include <rte_mempool.h>
  36 #include <rte_mbuf.h>
  37 #include <rte_malloc.h>
  38 #include <rte_ip.h>
  39 #include <rte_tcp.h>
  40 #include <rte_udp.h>
  41 #include <rte_string_fns.h>
  42 #include <rte_lpm.h>
  43 #include <rte_lpm6.h>
  44
  45 #include <rte_ip_frag.h>
  46
  47 #define MAX_PKT_BURST 32
  48
  49
  50 #define RTE_LOGTYPE_IP_RSMBL RTE_LOGTYPE_USER1
  51
  52 #define MAX_JUMBO_PKT_LEN  9600
  53
  54 #define BUF_SIZE        RTE_MBUF_DEFAULT_DATAROOM
  55 #define MBUF_DATA_SIZE  RTE_MBUF_DEFAULT_BUF_SIZE
  56
  57 #define NB_MBUF 8192
  58 #define MEMPOOL_CACHE_SIZE 256
  59
  60 /* allow max jumbo frame 9.5 KB */
  61 #define JUMBO_FRAME_MAX_SIZE    0x2600
  62
  63 #define MAX_FLOW_NUM    UINT16_MAX
  64 #define MIN_FLOW_NUM    1
  65 #define DEF_FLOW_NUM    0x1000
  66
  67 /* TTL numbers are in ms. */
  68 #define MAX_FLOW_TTL    (3600 * MS_PER_S)
  69 #define MIN_FLOW_TTL    1
  70 #define DEF_FLOW_TTL    MS_PER_S
  71
  72 #define MAX_FRAG_NUM RTE_LIBRTE_IP_FRAG_MAX_FRAG
  73
  74 /* Should be power of two. */
  75 #define IP_FRAG_TBL_BUCKET_ENTRIES      16
  76
  77 static uint32_t max_flow_num = DEF_FLOW_NUM;
  78 static uint32_t max_flow_ttl = DEF_FLOW_TTL;
  79
  80 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
  81
  82 #define NB_SOCKETS 8
  83
  84 /* Configure how many packets ahead to prefetch, when reading packets */
  85 #define PREFETCH_OFFSET 3
  86
  87 /*
  88  * Configurable number of RX/TX ring descriptors
  89  */
  90 #define RTE_TEST_RX_DESC_DEFAULT 1024
  91 #define RTE_TEST_TX_DESC_DEFAULT 1024
  92
  93 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  94 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  95
  96 /* ethernet addresses of ports */
  97 static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
  98
  99 #ifndef IPv4_BYTES
 100 #define IPv4_BYTES_FMT "%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8
 101 #define IPv4_BYTES(addr) \
 102                 (uint8_t) (((addr) >> 24) & 0xFF),\
 103                 (uint8_t) (((addr) >> 16) & 0xFF),\
 104                 (uint8_t) (((addr) >> 8) & 0xFF),\
 105                 (uint8_t) ((addr) & 0xFF)
 106 #endif
 107
 108 #ifndef IPv6_BYTES
 109 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
 110                        "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
 111 #define IPv6_BYTES(addr) \
 112         addr[0],  addr[1], addr[2],  addr[3], \
 113         addr[4],  addr[5], addr[6],  addr[7], \
 114         addr[8],  addr[9], addr[10], addr[11],\
 115         addr[12], addr[13],addr[14], addr[15]
 116 #endif
 117
 118 #define IPV6_ADDR_LEN 16
 119
 120 /* mask of enabled ports */
 121 static uint32_t enabled_port_mask = 0;
 122
 123 static int rx_queue_per_lcore = 1;
 124
 125 struct mbuf_table {
 126         uint32_t len;
 127         uint32_t head;
 128         uint32_t tail;
 129         struct rte_mbuf *m_table[0];
 130 };
 131
 132 struct rx_queue {
 133         struct rte_ip_frag_tbl *frag_tbl;
 134         struct rte_mempool *pool;
 135         struct rte_lpm *lpm;
 136         struct rte_lpm6 *lpm6;
 137         uint16_t portid;
 138 };
 139
 140 struct tx_lcore_stat {
 141         uint64_t call;
 142         uint64_t drop;
 143         uint64_t queue;
 144         uint64_t send;
 145 };
 146
 147 #define MAX_RX_QUEUE_PER_LCORE 16
 148 #define MAX_TX_QUEUE_PER_PORT 16
 149 #define MAX_RX_QUEUE_PER_PORT 128
 150
 151 struct lcore_queue_conf {
 152         uint16_t n_rx_queue;
 153         struct rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 154         uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
 155         struct rte_ip_frag_death_row death_row;
 156         struct mbuf_table *tx_mbufs[RTE_MAX_ETHPORTS];
 157         struct tx_lcore_stat tx_stat;
 158 } __rte_cache_aligned;
 159 static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
 160
 161 static struct rte_eth_conf port_conf = {
 162         .rxmode = {
 163                 .mq_mode        = ETH_MQ_RX_RSS,
 164                 .max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE,
 165                 .split_hdr_size = 0,
 166                 .offloads = (DEV_RX_OFFLOAD_CHECKSUM |
 167                              DEV_RX_OFFLOAD_JUMBO_FRAME),
 168         },
 169         .rx_adv_conf = {
 170                         .rss_conf = {
 171                                 .rss_key = NULL,
 172                                 .rss_hf = ETH_RSS_IP,
 173                 },
 174         },
 175         .txmode = {
 176                 .mq_mode = ETH_MQ_TX_NONE,
 177                 .offloads = (DEV_TX_OFFLOAD_IPV4_CKSUM |
 178                              DEV_TX_OFFLOAD_MULTI_SEGS),
 179         },
 180 };
 181
 182 /*
 183  * IPv4 forwarding table
 184  */
 185 struct l3fwd_ipv4_route {
 186         uint32_t ip;
 187         uint8_t  depth;
 188         uint8_t  if_out;
 189 };
 190
 191 /* Default l3fwd_ipv4_route_array table. 8< */
 192 struct l3fwd_ipv4_route l3fwd_ipv4_route_array[] = {
 193                 {RTE_IPV4(100,10,0,0), 16, 0},
 194                 {RTE_IPV4(100,20,0,0), 16, 1},
 195                 {RTE_IPV4(100,30,0,0), 16, 2},
 196                 {RTE_IPV4(100,40,0,0), 16, 3},
 197                 {RTE_IPV4(100,50,0,0), 16, 4},
 198                 {RTE_IPV4(100,60,0,0), 16, 5},
 199                 {RTE_IPV4(100,70,0,0), 16, 6},
 200                 {RTE_IPV4(100,80,0,0), 16, 7},
 201 };
 202 /* >8 End of default l3fwd_ipv4_route_array table. */
 203
 204 /*
 205  * IPv6 forwarding table
 206  */
 207
 208 struct l3fwd_ipv6_route {
 209         uint8_t ip[IPV6_ADDR_LEN];
 210         uint8_t depth;
 211         uint8_t if_out;
 212 };
 213
 214 /* Default l3fwd_ipv6_route_array table. 8< */
 215 static struct l3fwd_ipv6_route l3fwd_ipv6_route_array[] = {
 216         {{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 0},
 217         {{2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 1},
 218         {{3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 2},
 219         {{4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 3},
 220         {{5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 4},
 221         {{6,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 5},
 222         {{7,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 6},
 223         {{8,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 7},
 224 };
 225 /* >8 End of default l3fwd_ipv6_route_array table. */
 226
 227 #define LPM_MAX_RULES         1024
 228 #define LPM6_MAX_RULES         1024
 229 #define LPM6_NUMBER_TBL8S (1 << 16)
 230
 231 struct rte_lpm6_config lpm6_config = {
 232                 .max_rules = LPM6_MAX_RULES,
 233                 .number_tbl8s = LPM6_NUMBER_TBL8S,
 234                 .flags = 0
 235 };
 236
 237 static struct rte_lpm *socket_lpm[RTE_MAX_NUMA_NODES];
 238 static struct rte_lpm6 *socket_lpm6[RTE_MAX_NUMA_NODES];
 239
 240 #ifdef RTE_LIBRTE_IP_FRAG_TBL_STAT
 241 #define TX_LCORE_STAT_UPDATE(s, f, v)   ((s)->f += (v))
 242 #else
 243 #define TX_LCORE_STAT_UPDATE(s, f, v)   do {} while (0)
 244 #endif /* RTE_LIBRTE_IP_FRAG_TBL_STAT */
 245
 246 /*
 247  * If number of queued packets reached given threahold, then
 248  * send burst of packets on an output interface.
 249  */
 250 static inline uint32_t
 251 send_burst(struct lcore_queue_conf *qconf, uint32_t thresh, uint16_t port)
 252 {
 253         uint32_t fill, len, k, n;
 254         struct mbuf_table *txmb;
 255
 256         txmb = qconf->tx_mbufs[port];
 257         len = txmb->len;
 258
 259         if ((int32_t)(fill = txmb->head - txmb->tail) < 0)
 260                 fill += len;
 261
 262         if (fill >= thresh) {
 263                 n = RTE_MIN(len - txmb->tail, fill);
 264
 265                 k = rte_eth_tx_burst(port, qconf->tx_queue_id[port],
 266                         txmb->m_table + txmb->tail, (uint16_t)n);
 267
 268                 TX_LCORE_STAT_UPDATE(&qconf->tx_stat, call, 1);
 269                 TX_LCORE_STAT_UPDATE(&qconf->tx_stat, send, k);
 270
 271                 fill -= k;
 272                 if ((txmb->tail += k) == len)
 273                         txmb->tail = 0;
 274         }
 275
 276         return fill;
 277 }
 278
 279 /* Enqueue a single packet, and send burst if queue is filled */
 280 static inline int
 281 send_single_packet(struct rte_mbuf *m, uint16_t port)
 282 {
 283         uint32_t fill, lcore_id, len;
 284         struct lcore_queue_conf *qconf;
 285         struct mbuf_table *txmb;
 286
 287         lcore_id = rte_lcore_id();
 288         qconf = &lcore_queue_conf[lcore_id];
 289
 290         txmb = qconf->tx_mbufs[port];
 291         len = txmb->len;
 292
 293         fill = send_burst(qconf, MAX_PKT_BURST, port);
 294
 295         if (fill == len - 1) {
 296                 TX_LCORE_STAT_UPDATE(&qconf->tx_stat, drop, 1);
 297                 rte_pktmbuf_free(txmb->m_table[txmb->tail]);
 298                 if (++txmb->tail == len)
 299                         txmb->tail = 0;
 300         }
 301
 302         TX_LCORE_STAT_UPDATE(&qconf->tx_stat, queue, 1);
 303         txmb->m_table[txmb->head] = m;
 304         if(++txmb->head == len)
 305                 txmb->head = 0;
 306
 307         return 0;
 308 }
 309
 310 static inline void
 311 reassemble(struct rte_mbuf *m, uint16_t portid, uint32_t queue,
 312         struct lcore_queue_conf *qconf, uint64_t tms)
 313 {
 314         struct rte_ether_hdr *eth_hdr;
 315         struct rte_ip_frag_tbl *tbl;
 316         struct rte_ip_frag_death_row *dr;
 317         struct rx_queue *rxq;
 318         void *d_addr_bytes;
 319         uint32_t next_hop;
 320         uint16_t dst_port;
 321
 322         rxq = &qconf->rx_queue_list[queue];
 323
 324         eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
 325
 326         dst_port = portid;
 327
 328         /* if packet is IPv4 */
 329         if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
 330                 struct rte_ipv4_hdr *ip_hdr;
 331                 uint32_t ip_dst;
 332
 333                 ip_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
 334
 335                  /* if it is a fragmented packet, then try to reassemble. */
 336                 if (rte_ipv4_frag_pkt_is_fragmented(ip_hdr)) {
 337                         struct rte_mbuf *mo;
 338
 339                         tbl = rxq->frag_tbl;
 340                         dr = &qconf->death_row;
 341
 342                         /* prepare mbuf: setup l2_len/l3_len. */
 343                         m->l2_len = sizeof(*eth_hdr);
 344                         m->l3_len = sizeof(*ip_hdr);
 345
 346                         /* process this fragment. */
 347                         mo = rte_ipv4_frag_reassemble_packet(tbl, dr, m, tms, ip_hdr);
 348                         if (mo == NULL)
 349                                 /* no packet to send out. */
 350                                 return;
 351
 352                         /* we have our packet reassembled. */
 353                         if (mo != m) {
 354                                 m = mo;
 355                                 eth_hdr = rte_pktmbuf_mtod(m,
 356                                         struct rte_ether_hdr *);
 357                                 ip_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
 358                         }
 359
 360                         /* update offloading flags */
 361                         m->ol_flags |= (PKT_TX_IPV4 | PKT_TX_IP_CKSUM);
 362                 }
 363                 ip_dst = rte_be_to_cpu_32(ip_hdr->dst_addr);
 364
 365                 /* Find destination port */
 366                 if (rte_lpm_lookup(rxq->lpm, ip_dst, &next_hop) == 0 &&
 367                                 (enabled_port_mask & 1 << next_hop) != 0) {
 368                         dst_port = next_hop;
 369                 }
 370
 371                 eth_hdr->ether_type = rte_be_to_cpu_16(RTE_ETHER_TYPE_IPV4);
 372         } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
 373                 /* if packet is IPv6 */
 374                 struct ipv6_extension_fragment *frag_hdr;
 375                 struct rte_ipv6_hdr *ip_hdr;
 376
 377                 ip_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1);
 378
 379                 frag_hdr = rte_ipv6_frag_get_ipv6_fragment_header(ip_hdr);
 380
 381                 if (frag_hdr != NULL) {
 382                         struct rte_mbuf *mo;
 383
 384                         tbl = rxq->frag_tbl;
 385                         dr  = &qconf->death_row;
 386
 387                         /* prepare mbuf: setup l2_len/l3_len. */
 388                         m->l2_len = sizeof(*eth_hdr);
 389                         m->l3_len = sizeof(*ip_hdr) + sizeof(*frag_hdr);
 390
 391                         mo = rte_ipv6_frag_reassemble_packet(tbl, dr, m, tms, ip_hdr, frag_hdr);
 392                         if (mo == NULL)
 393                                 return;
 394
 395                         if (mo != m) {
 396                                 m = mo;
 397                                 eth_hdr = rte_pktmbuf_mtod(m,
 398                                                         struct rte_ether_hdr *);
 399                                 ip_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1);
 400                         }
 401                 }
 402
 403                 /* Find destination port */
 404                 if (rte_lpm6_lookup(rxq->lpm6, ip_hdr->dst_addr,
 405                                                 &next_hop) == 0 &&
 406                                 (enabled_port_mask & 1 << next_hop) != 0) {
 407                         dst_port = next_hop;
 408                 }
 409
 410                 eth_hdr->ether_type = rte_be_to_cpu_16(RTE_ETHER_TYPE_IPV6);
 411         }
 412         /* if packet wasn't IPv4 or IPv6, it's forwarded to the port it came from */
 413
 414         /* 02:00:00:00:00:xx */
 415         d_addr_bytes = &eth_hdr->dst_addr.addr_bytes[0];
 416         *((uint64_t *)d_addr_bytes) = 0x000000000002 + ((uint64_t)dst_port << 40);
 417
 418         /* src addr */
 419         rte_ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->src_addr);
 420
 421         send_single_packet(m, dst_port);
 422 }
 423
 424 /* main processing loop */
 425 static int
 426 main_loop(__rte_unused void *dummy)
 427 {
 428         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 429         unsigned lcore_id;
 430         uint64_t diff_tsc, cur_tsc, prev_tsc;
 431         int i, j, nb_rx;
 432         uint16_t portid;
 433         struct lcore_queue_conf *qconf;
 434         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
 435
 436         prev_tsc = 0;
 437
 438         lcore_id = rte_lcore_id();
 439         qconf = &lcore_queue_conf[lcore_id];
 440
 441         if (qconf->n_rx_queue == 0) {
 442                 RTE_LOG(INFO, IP_RSMBL, "lcore %u has nothing to do\n", lcore_id);
 443                 return 0;
 444         }
 445
 446         RTE_LOG(INFO, IP_RSMBL, "entering main loop on lcore %u\n", lcore_id);
 447
 448         for (i = 0; i < qconf->n_rx_queue; i++) {
 449
 450                 portid = qconf->rx_queue_list[i].portid;
 451                 RTE_LOG(INFO, IP_RSMBL, " -- lcoreid=%u portid=%u\n", lcore_id,
 452                         portid);
 453         }
 454
 455         while (1) {
 456
 457                 cur_tsc = rte_rdtsc();
 458
 459                 /*
 460                  * TX burst queue drain
 461                  */
 462                 diff_tsc = cur_tsc - prev_tsc;
 463                 if (unlikely(diff_tsc > drain_tsc)) {
 464
 465                         /*
 466                          * This could be optimized (use queueid instead of
 467                          * portid), but it is not called so often
 468                          */
 469                         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 470                                 if ((enabled_port_mask & (1 << portid)) != 0)
 471                                         send_burst(qconf, 1, portid);
 472                         }
 473
 474                         prev_tsc = cur_tsc;
 475                 }
 476
 477                 /*
 478                  * Read packet from RX queues
 479                  */
 480                 for (i = 0; i < qconf->n_rx_queue; ++i) {
 481
 482                         portid = qconf->rx_queue_list[i].portid;
 483
 484                         nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
 485                                 MAX_PKT_BURST);
 486
 487                         /* Prefetch first packets */
 488                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
 489                                 rte_prefetch0(rte_pktmbuf_mtod(
 490                                                 pkts_burst[j], void *));
 491                         }
 492
 493                         /* Prefetch and forward already prefetched packets */
 494                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
 495                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
 496                                         j + PREFETCH_OFFSET], void *));
 497                                 reassemble(pkts_burst[j], portid,
 498                                         i, qconf, cur_tsc);
 499                         }
 500
 501                         /* Forward remaining prefetched packets */
 502                         for (; j < nb_rx; j++) {
 503                                 reassemble(pkts_burst[j], portid,
 504                                         i, qconf, cur_tsc);
 505                         }
 506
 507                         rte_ip_frag_free_death_row(&qconf->death_row,
 508                                 PREFETCH_OFFSET);
 509                 }
 510         }
 511 }
 512
 513 /* display usage */
 514 static void
 515 print_usage(const char *prgname)
 516 {
 517         printf("%s [EAL options] -- -p PORTMASK [-q NQ]"
 518                 "  [--max-pkt-len PKTLEN]"
 519                 "  [--maxflows=<flows>]  [--flowttl=<ttl>[(s|ms)]]\n"
 520                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 521                 "  -q NQ: number of RX queues per lcore\n"
 522                 "  --maxflows=<flows>: optional, maximum number of flows "
 523                 "supported\n"
 524                 "  --flowttl=<ttl>[(s|ms)]: optional, maximum TTL for each "
 525                 "flow\n",
 526                 prgname);
 527 }
 528
 529 static uint32_t
 530 parse_flow_num(const char *str, uint32_t min, uint32_t max, uint32_t *val)
 531 {
 532         char *end;
 533         uint64_t v;
 534
 535         /* parse decimal string */
 536         errno = 0;
 537         v = strtoul(str, &end, 10);
 538         if (errno != 0 || *end != '\0')
 539                 return -EINVAL;
 540
 541         if (v < min || v > max)
 542                 return -EINVAL;
 543
 544         *val = (uint32_t)v;
 545         return 0;
 546 }
 547
 548 static int
 549 parse_flow_ttl(const char *str, uint32_t min, uint32_t max, uint32_t *val)
 550 {
 551         char *end;
 552         uint64_t v;
 553
 554         static const char frmt_sec[] = "s";
 555         static const char frmt_msec[] = "ms";
 556
 557         /* parse decimal string */
 558         errno = 0;
 559         v = strtoul(str, &end, 10);
 560         if (errno != 0)
 561                 return -EINVAL;
 562
 563         if (*end != '\0') {
 564                 if (strncmp(frmt_sec, end, sizeof(frmt_sec)) == 0)
 565                         v *= MS_PER_S;
 566                 else if (strncmp(frmt_msec, end, sizeof (frmt_msec)) != 0)
 567                         return -EINVAL;
 568         }
 569
 570         if (v < min || v > max)
 571                 return -EINVAL;
 572
 573         *val = (uint32_t)v;
 574         return 0;
 575 }
 576
 577 static int
 578 parse_portmask(const char *portmask)
 579 {
 580         char *end = NULL;
 581         unsigned long pm;
 582
 583         /* parse hexadecimal string */
 584         pm = strtoul(portmask, &end, 16);
 585         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 586                 return 0;
 587
 588         return pm;
 589 }
 590
 591 static int
 592 parse_nqueue(const char *q_arg)
 593 {
 594         char *end = NULL;
 595         unsigned long n;
 596
 597         printf("%p\n", q_arg);
 598
 599         /* parse hexadecimal string */
 600         n = strtoul(q_arg, &end, 10);
 601         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 602                 return -1;
 603         if (n == 0)
 604                 return -1;
 605         if (n >= MAX_RX_QUEUE_PER_LCORE)
 606                 return -1;
 607
 608         return n;
 609 }
 610
 611 /* Parse the argument given in the command line of the application */
 612 static int
 613 parse_args(int argc, char **argv)
 614 {
 615         int opt, ret;
 616         char **argvopt;
 617         int option_index;
 618         char *prgname = argv[0];
 619         static struct option lgopts[] = {
 620                 {"max-pkt-len", 1, 0, 0},
 621                 {"maxflows", 1, 0, 0},
 622                 {"flowttl", 1, 0, 0},
 623                 {NULL, 0, 0, 0}
 624         };
 625
 626         argvopt = argv;
 627
 628         while ((opt = getopt_long(argc, argvopt, "p:q:",
 629                                 lgopts, &option_index)) != EOF) {
 630
 631                 switch (opt) {
 632                 /* portmask */
 633                 case 'p':
 634                         enabled_port_mask = parse_portmask(optarg);
 635                         if (enabled_port_mask == 0) {
 636                                 printf("invalid portmask\n");
 637                                 print_usage(prgname);
 638                                 return -1;
 639                         }
 640                         break;
 641
 642                 /* nqueue */
 643                 case 'q':
 644                         rx_queue_per_lcore = parse_nqueue(optarg);
 645                         if (rx_queue_per_lcore < 0) {
 646                                 printf("invalid queue number\n");
 647                                 print_usage(prgname);
 648                                 return -1;
 649                         }
 650                         break;
 651
 652                 /* long options */
 653                 case 0:
 654                         if (!strncmp(lgopts[option_index].name,
 655                                         "maxflows", 8)) {
 656                                 if ((ret = parse_flow_num(optarg, MIN_FLOW_NUM,
 657                                                 MAX_FLOW_NUM,
 658                                                 &max_flow_num)) != 0) {
 659                                         printf("invalid value: \"%s\" for "
 660                                                 "parameter %s\n",
 661                                                 optarg,
 662                                                 lgopts[option_index].name);
 663                                         print_usage(prgname);
 664                                         return ret;
 665                                 }
 666                         }
 667
 668                         if (!strncmp(lgopts[option_index].name, "flowttl", 7)) {
 669                                 if ((ret = parse_flow_ttl(optarg, MIN_FLOW_TTL,
 670                                                 MAX_FLOW_TTL,
 671                                                 &max_flow_ttl)) != 0) {
 672                                         printf("invalid value: \"%s\" for "
 673                                                 "parameter %s\n",
 674                                                 optarg,
 675                                                 lgopts[option_index].name);
 676                                         print_usage(prgname);
 677                                         return ret;
 678                                 }
 679                         }
 680
 681                         break;
 682
 683                 default:
 684                         print_usage(prgname);
 685                         return -1;
 686                 }
 687         }
 688
 689         if (optind >= 0)
 690                 argv[optind-1] = prgname;
 691
 692         ret = optind-1;
 693         optind = 1; /* reset getopt lib */
 694         return ret;
 695 }
 696
 697 static void
 698 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
 699 {
 700         char buf[RTE_ETHER_ADDR_FMT_SIZE];
 701         rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
 702         printf("%s%s", name, buf);
 703 }
 704
 705 /* Check the link status of all ports in up to 9s, and print them finally */
 706 static void
 707 check_all_ports_link_status(uint32_t port_mask)
 708 {
 709 #define CHECK_INTERVAL 100 /* 100ms */
 710 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 711         uint16_t portid;
 712         uint8_t count, all_ports_up, print_flag = 0;
 713         struct rte_eth_link link;
 714         int ret;
 715         char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
 716
 717         printf("\nChecking link status");
 718         fflush(stdout);
 719         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 720                 all_ports_up = 1;
 721                 RTE_ETH_FOREACH_DEV(portid) {
 722                         if ((port_mask & (1 << portid)) == 0)
 723                                 continue;
 724                         memset(&link, 0, sizeof(link));
 725                         ret = rte_eth_link_get_nowait(portid, &link);
 726                         if (ret < 0) {
 727                                 all_ports_up = 0;
 728                                 if (print_flag == 1)
 729                                         printf("Port %u link get failed: %s\n",
 730                                                 portid, rte_strerror(-ret));
 731                                 continue;
 732                         }
 733                         /* print link status if flag set */
 734                         if (print_flag == 1) {
 735                                 rte_eth_link_to_str(link_status_text,
 736                                         sizeof(link_status_text), &link);
 737                                 printf("Port %d %s\n", portid,
 738                                        link_status_text);
 739                                 continue;
 740                         }
 741                         /* clear all_ports_up flag if any link down */
 742                         if (link.link_status == ETH_LINK_DOWN) {
 743                                 all_ports_up = 0;
 744                                 break;
 745                         }
 746                 }
 747                 /* after finally printing all link status, get out */
 748                 if (print_flag == 1)
 749                         break;
 750
 751                 if (all_ports_up == 0) {
 752                         printf(".");
 753                         fflush(stdout);
 754                         rte_delay_ms(CHECK_INTERVAL);
 755                 }
 756
 757                 /* set the print_flag if all ports up or timeout */
 758                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 759                         print_flag = 1;
 760                         printf("\ndone\n");
 761                 }
 762         }
 763 }
 764
 765 static int
 766 init_routing_table(void)
 767 {
 768         struct rte_lpm *lpm;
 769         struct rte_lpm6 *lpm6;
 770         int socket, ret;
 771         unsigned i;
 772
 773         for (socket = 0; socket < RTE_MAX_NUMA_NODES; socket++) {
 774                 if (socket_lpm[socket]) {
 775                         lpm = socket_lpm[socket];
 776                         /* populate the LPM table */
 777                         for (i = 0; i < RTE_DIM(l3fwd_ipv4_route_array); i++) {
 778                                 ret = rte_lpm_add(lpm,
 779                                         l3fwd_ipv4_route_array[i].ip,
 780                                         l3fwd_ipv4_route_array[i].depth,
 781                                         l3fwd_ipv4_route_array[i].if_out);
 782
 783                                 if (ret < 0) {
 784                                         RTE_LOG(ERR, IP_RSMBL, "Unable to add entry %i to the l3fwd "
 785                                                 "LPM table\n", i);
 786                                         return -1;
 787                                 }
 788
 789                                 RTE_LOG(INFO, IP_RSMBL, "Socket %i: adding route " IPv4_BYTES_FMT
 790                                                 "/%d (port %d)\n",
 791                                         socket,
 792                                         IPv4_BYTES(l3fwd_ipv4_route_array[i].ip),
 793                                         l3fwd_ipv4_route_array[i].depth,
 794                                         l3fwd_ipv4_route_array[i].if_out);
 795                         }
 796                 }
 797
 798                 if (socket_lpm6[socket]) {
 799                         lpm6 = socket_lpm6[socket];
 800                         /* populate the LPM6 table */
 801                         for (i = 0; i < RTE_DIM(l3fwd_ipv6_route_array); i++) {
 802                                 ret = rte_lpm6_add(lpm6,
 803                                         l3fwd_ipv6_route_array[i].ip,
 804                                         l3fwd_ipv6_route_array[i].depth,
 805                                         l3fwd_ipv6_route_array[i].if_out);
 806
 807                                 if (ret < 0) {
 808                                         RTE_LOG(ERR, IP_RSMBL, "Unable to add entry %i to the l3fwd "
 809                                                 "LPM6 table\n", i);
 810                                         return -1;
 811                                 }
 812
 813                                 RTE_LOG(INFO, IP_RSMBL, "Socket %i: adding route " IPv6_BYTES_FMT
 814                                                 "/%d (port %d)\n",
 815                                         socket,
 816                                         IPv6_BYTES(l3fwd_ipv6_route_array[i].ip),
 817                                         l3fwd_ipv6_route_array[i].depth,
 818                                         l3fwd_ipv6_route_array[i].if_out);
 819                         }
 820                 }
 821         }
 822         return 0;
 823 }
 824
 825 static int
 826 setup_port_tbl(struct lcore_queue_conf *qconf, uint32_t lcore, int socket,
 827         uint32_t port)
 828 {
 829         struct mbuf_table *mtb;
 830         uint32_t n;
 831         size_t sz;
 832
 833         n = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST);
 834         sz = sizeof (*mtb) + sizeof (mtb->m_table[0]) *  n;
 835
 836         if ((mtb = rte_zmalloc_socket(__func__, sz, RTE_CACHE_LINE_SIZE,
 837                         socket)) == NULL) {
 838                 RTE_LOG(ERR, IP_RSMBL, "%s() for lcore: %u, port: %u "
 839                         "failed to allocate %zu bytes\n",
 840                         __func__, lcore, port, sz);
 841                 return -1;
 842         }
 843
 844         mtb->len = n;
 845         qconf->tx_mbufs[port] = mtb;
 846
 847         return 0;
 848 }
 849
 850 static int
 851 setup_queue_tbl(struct rx_queue *rxq, uint32_t lcore, uint32_t queue)
 852 {
 853         int socket;
 854         uint32_t nb_mbuf;
 855         uint64_t frag_cycles;
 856         char buf[RTE_MEMPOOL_NAMESIZE];
 857
 858         socket = rte_lcore_to_socket_id(lcore);
 859         if (socket == SOCKET_ID_ANY)
 860                 socket = 0;
 861
 862         /* Each table entry holds information about packet fragmentation. 8< */
 863         frag_cycles = (rte_get_tsc_hz() + MS_PER_S - 1) / MS_PER_S *
 864                 max_flow_ttl;
 865
 866         if ((rxq->frag_tbl = rte_ip_frag_table_create(max_flow_num,
 867                         IP_FRAG_TBL_BUCKET_ENTRIES, max_flow_num, frag_cycles,
 868                         socket)) == NULL) {
 869                 RTE_LOG(ERR, IP_RSMBL, "ip_frag_tbl_create(%u) on "
 870                         "lcore: %u for queue: %u failed\n",
 871                         max_flow_num, lcore, queue);
 872                 return -1;
 873         }
 874         /* >8 End of holding packet fragmentation. */
 875
 876         /*
 877          * At any given moment up to <max_flow_num * (MAX_FRAG_NUM)>
 878          * mbufs could be stored int the fragment table.
 879          * Plus, each TX queue can hold up to <max_flow_num> packets.
 880          */
 881
 882         /* mbufs stored int the gragment table. 8< */
 883         nb_mbuf = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST) * MAX_FRAG_NUM;
 884         nb_mbuf *= (port_conf.rxmode.max_rx_pkt_len + BUF_SIZE - 1) / BUF_SIZE;
 885         nb_mbuf *= 2; /* ipv4 and ipv6 */
 886         nb_mbuf += nb_rxd + nb_txd;
 887
 888         nb_mbuf = RTE_MAX(nb_mbuf, (uint32_t)NB_MBUF);
 889
 890         snprintf(buf, sizeof(buf), "mbuf_pool_%u_%u", lcore, queue);
 891
 892         rxq->pool = rte_pktmbuf_pool_create(buf, nb_mbuf, MEMPOOL_CACHE_SIZE, 0,
 893                                             MBUF_DATA_SIZE, socket);
 894         if (rxq->pool == NULL) {
 895                 RTE_LOG(ERR, IP_RSMBL,
 896                         "rte_pktmbuf_pool_create(%s) failed", buf);
 897                 return -1;
 898         }
 899         /* >8 End of mbufs stored int the fragmentation table. */
 900
 901         return 0;
 902 }
 903
 904 static int
 905 init_mem(void)
 906 {
 907         char buf[PATH_MAX];
 908         struct rte_lpm *lpm;
 909         struct rte_lpm6 *lpm6;
 910         struct rte_lpm_config lpm_config;
 911         int socket;
 912         unsigned lcore_id;
 913
 914         /* traverse through lcores and initialize structures on each socket */
 915
 916         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 917
 918                 if (rte_lcore_is_enabled(lcore_id) == 0)
 919                         continue;
 920
 921                 socket = rte_lcore_to_socket_id(lcore_id);
 922
 923                 if (socket == SOCKET_ID_ANY)
 924                         socket = 0;
 925
 926                 if (socket_lpm[socket] == NULL) {
 927                         RTE_LOG(INFO, IP_RSMBL, "Creating LPM table on socket %i\n", socket);
 928                         snprintf(buf, sizeof(buf), "IP_RSMBL_LPM_%i", socket);
 929
 930                         lpm_config.max_rules = LPM_MAX_RULES;
 931                         lpm_config.number_tbl8s = 256;
 932                         lpm_config.flags = 0;
 933
 934                         lpm = rte_lpm_create(buf, socket, &lpm_config);
 935                         if (lpm == NULL) {
 936                                 RTE_LOG(ERR, IP_RSMBL, "Cannot create LPM table\n");
 937                                 return -1;
 938                         }
 939                         socket_lpm[socket] = lpm;
 940                 }
 941
 942                 if (socket_lpm6[socket] == NULL) {
 943                         RTE_LOG(INFO, IP_RSMBL, "Creating LPM6 table on socket %i\n", socket);
 944                         snprintf(buf, sizeof(buf), "IP_RSMBL_LPM_%i", socket);
 945
 946                         lpm6 = rte_lpm6_create(buf, socket, &lpm6_config);
 947                         if (lpm6 == NULL) {
 948                                 RTE_LOG(ERR, IP_RSMBL, "Cannot create LPM table\n");
 949                                 return -1;
 950                         }
 951                         socket_lpm6[socket] = lpm6;
 952                 }
 953         }
 954
 955         return 0;
 956 }
 957
 958 static void
 959 queue_dump_stat(void)
 960 {
 961         uint32_t i, lcore;
 962         const struct lcore_queue_conf *qconf;
 963
 964         for (lcore = 0; lcore < RTE_MAX_LCORE; lcore++) {
 965                 if (rte_lcore_is_enabled(lcore) == 0)
 966                         continue;
 967
 968                 qconf = &lcore_queue_conf[lcore];
 969                 for (i = 0; i < qconf->n_rx_queue; i++) {
 970
 971                         fprintf(stdout, " -- lcoreid=%u portid=%u "
 972                                 "frag tbl stat:\n",
 973                                 lcore,  qconf->rx_queue_list[i].portid);
 974                         rte_ip_frag_table_statistics_dump(stdout,
 975                                         qconf->rx_queue_list[i].frag_tbl);
 976                         fprintf(stdout, "TX bursts:\t%" PRIu64 "\n"
 977                                 "TX packets _queued:\t%" PRIu64 "\n"
 978                                 "TX packets dropped:\t%" PRIu64 "\n"
 979                                 "TX packets send:\t%" PRIu64 "\n",
 980                                 qconf->tx_stat.call,
 981                                 qconf->tx_stat.queue,
 982                                 qconf->tx_stat.drop,
 983                                 qconf->tx_stat.send);
 984                 }
 985         }
 986 }
 987
 988 static void
 989 signal_handler(int signum)
 990 {
 991         queue_dump_stat();
 992         if (signum != SIGUSR1)
 993                 rte_exit(0, "received signal: %d, exiting\n", signum);
 994 }
 995
 996 int
 997 main(int argc, char **argv)
 998 {
 999         struct lcore_queue_conf *qconf;
1000         struct rte_eth_dev_info dev_info;
1001         struct rte_eth_txconf *txconf;
1002         struct rx_queue *rxq;
1003         int ret, socket;
1004         unsigned nb_ports;
1005         uint16_t queueid;
1006         unsigned lcore_id = 0, rx_lcore_id = 0;
1007         uint32_t n_tx_queue, nb_lcores;
1008         uint16_t portid;
1009
1010         /* init EAL */
1011         ret = rte_eal_init(argc, argv);
1012         if (ret < 0)
1013                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
1014         argc -= ret;
1015         argv += ret;
1016
1017         /* parse application arguments (after the EAL ones) */
1018         ret = parse_args(argc, argv);
1019         if (ret < 0)
1020                 rte_exit(EXIT_FAILURE, "Invalid IP reassembly parameters\n");
1021
1022         nb_ports = rte_eth_dev_count_avail();
1023         if (nb_ports == 0)
1024                 rte_exit(EXIT_FAILURE, "No ports found!\n");
1025
1026         nb_lcores = rte_lcore_count();
1027
1028         /* initialize structures (mempools, lpm etc.) */
1029         if (init_mem() < 0)
1030                 rte_panic("Cannot initialize memory structures!\n");
1031
1032         /* check if portmask has non-existent ports */
1033         if (enabled_port_mask & ~(RTE_LEN2MASK(nb_ports, unsigned)))
1034                 rte_exit(EXIT_FAILURE, "Non-existent ports in portmask!\n");
1035
1036         /* initialize all ports */
1037         RTE_ETH_FOREACH_DEV(portid) {
1038                 struct rte_eth_rxconf rxq_conf;
1039                 struct rte_eth_conf local_port_conf = port_conf;
1040
1041                 /* skip ports that are not enabled */
1042                 if ((enabled_port_mask & (1 << portid)) == 0) {
1043                         printf("\nSkipping disabled port %d\n", portid);
1044                         continue;
1045                 }
1046
1047                 qconf = &lcore_queue_conf[rx_lcore_id];
1048
1049                 /* limit the frame size to the maximum supported by NIC */
1050                 ret = rte_eth_dev_info_get(portid, &dev_info);
1051                 if (ret != 0)
1052                         rte_exit(EXIT_FAILURE,
1053                                 "Error during getting device (port %u) info: %s\n",
1054                                 portid, strerror(-ret));
1055
1056                 local_port_conf.rxmode.max_rx_pkt_len = RTE_MIN(
1057                     dev_info.max_rx_pktlen,
1058                     local_port_conf.rxmode.max_rx_pkt_len);
1059
1060                 /* get the lcore_id for this port */
1061                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
1062                            qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) {
1063
1064                         rx_lcore_id++;
1065                         if (rx_lcore_id >= RTE_MAX_LCORE)
1066                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
1067
1068                         qconf = &lcore_queue_conf[rx_lcore_id];
1069                 }
1070
1071                 socket = rte_lcore_to_socket_id(portid);
1072                 if (socket == SOCKET_ID_ANY)
1073                         socket = 0;
1074
1075                 queueid = qconf->n_rx_queue;
1076                 rxq = &qconf->rx_queue_list[queueid];
1077                 rxq->portid = portid;
1078                 rxq->lpm = socket_lpm[socket];
1079                 rxq->lpm6 = socket_lpm6[socket];
1080
1081                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
1082                                                        &nb_txd);
1083                 if (ret < 0)
1084                         rte_exit(EXIT_FAILURE,
1085                                  "Cannot adjust number of descriptors: err=%d, port=%d\n",
1086                                  ret, portid);
1087
1088                 if (setup_queue_tbl(rxq, rx_lcore_id, queueid) < 0)
1089                         rte_exit(EXIT_FAILURE, "Failed to set up queue table\n");
1090                 qconf->n_rx_queue++;
1091
1092                 /* init port */
1093                 printf("Initializing port %d ... ", portid );
1094                 fflush(stdout);
1095
1096                 n_tx_queue = nb_lcores;
1097                 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
1098                         n_tx_queue = MAX_TX_QUEUE_PER_PORT;
1099                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
1100                         local_port_conf.txmode.offloads |=
1101                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
1102
1103                 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
1104                         dev_info.flow_type_rss_offloads;
1105                 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
1106                                 port_conf.rx_adv_conf.rss_conf.rss_hf) {
1107                         printf("Port %u modified RSS hash function based on hardware support,"
1108                                 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
1109                                 portid,
1110                                 port_conf.rx_adv_conf.rss_conf.rss_hf,
1111                                 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
1112                 }
1113
1114                 ret = rte_eth_dev_configure(portid, 1, (uint16_t)n_tx_queue,
1115                                             &local_port_conf);
1116                 if (ret < 0) {
1117                         printf("\n");
1118                         rte_exit(EXIT_FAILURE, "Cannot configure device: "
1119                                 "err=%d, port=%d\n",
1120                                 ret, portid);
1121                 }
1122
1123                 /* init one RX queue */
1124                 rxq_conf = dev_info.default_rxconf;
1125                 rxq_conf.offloads = local_port_conf.rxmode.offloads;
1126                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
1127                                              socket, &rxq_conf,
1128                                              rxq->pool);
1129                 if (ret < 0) {
1130                         printf("\n");
1131                         rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: "
1132                                 "err=%d, port=%d\n",
1133                                 ret, portid);
1134                 }
1135
1136                 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
1137                 if (ret < 0) {
1138                         printf("\n");
1139                         rte_exit(EXIT_FAILURE,
1140                                 "rte_eth_macaddr_get: err=%d, port=%d\n",
1141                                 ret, portid);
1142                 }
1143
1144                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1145                 printf("\n");
1146
1147                 /* init one TX queue per couple (lcore,port) */
1148                 queueid = 0;
1149                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1150                         if (rte_lcore_is_enabled(lcore_id) == 0)
1151                                 continue;
1152
1153                         socket = (int) rte_lcore_to_socket_id(lcore_id);
1154
1155                         printf("txq=%u,%d,%d ", lcore_id, queueid, socket);
1156                         fflush(stdout);
1157
1158                         txconf = &dev_info.default_txconf;
1159                         txconf->offloads = local_port_conf.txmode.offloads;
1160
1161                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
1162                                         socket, txconf);
1163                         if (ret < 0)
1164                                 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
1165                                         "port=%d\n", ret, portid);
1166
1167                         qconf = &lcore_queue_conf[lcore_id];
1168                         qconf->tx_queue_id[portid] = queueid;
1169                         setup_port_tbl(qconf, lcore_id, socket, portid);
1170                         queueid++;
1171                 }
1172                 printf("\n");
1173         }
1174
1175         printf("\n");
1176
1177         /* start ports */
1178         RTE_ETH_FOREACH_DEV(portid) {
1179                 if ((enabled_port_mask & (1 << portid)) == 0) {
1180                         continue;
1181                 }
1182                 /* Start device */
1183                 ret = rte_eth_dev_start(portid);
1184                 if (ret < 0)
1185                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
1186                                 ret, portid);
1187
1188                 ret = rte_eth_promiscuous_enable(portid);
1189                 if (ret != 0)
1190                         rte_exit(EXIT_FAILURE,
1191                                 "rte_eth_promiscuous_enable: err=%s, port=%d\n",
1192                                 rte_strerror(-ret), portid);
1193         }
1194
1195         if (init_routing_table() < 0)
1196                 rte_exit(EXIT_FAILURE, "Cannot init routing table\n");
1197
1198         check_all_ports_link_status(enabled_port_mask);
1199
1200         signal(SIGUSR1, signal_handler);
1201         signal(SIGTERM, signal_handler);
1202         signal(SIGINT, signal_handler);
1203
1204         /* launch per-lcore init on every lcore */
1205         rte_eal_mp_remote_launch(main_loop, NULL, CALL_MAIN);
1206         RTE_LCORE_FOREACH_WORKER(lcore_id) {
1207                 if (rte_eal_wait_lcore(lcore_id) < 0)
1208                         return -1;
1209         }
1210
1211         /* clean up the EAL */
1212         rte_eal_cleanup();
1213
1214         return 0;
1215 }