examples/l3fwd/main.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 <signal.h>
  16 #include <stdbool.h>
  17
  18 #include <rte_common.h>
  19 #include <rte_vect.h>
  20 #include <rte_byteorder.h>
  21 #include <rte_log.h>
  22 #include <rte_memory.h>
  23 #include <rte_memcpy.h>
  24 #include <rte_eal.h>
  25 #include <rte_launch.h>
  26 #include <rte_atomic.h>
  27 #include <rte_cycles.h>
  28 #include <rte_prefetch.h>
  29 #include <rte_lcore.h>
  30 #include <rte_per_lcore.h>
  31 #include <rte_branch_prediction.h>
  32 #include <rte_interrupts.h>
  33 #include <rte_random.h>
  34 #include <rte_debug.h>
  35 #include <rte_ether.h>
  36 #include <rte_ethdev.h>
  37 #include <rte_mempool.h>
  38 #include <rte_mbuf.h>
  39 #include <rte_ip.h>
  40 #include <rte_tcp.h>
  41 #include <rte_udp.h>
  42 #include <rte_string_fns.h>
  43 #include <rte_cpuflags.h>
  44
  45 #include <cmdline_parse.h>
  46 #include <cmdline_parse_etheraddr.h>
  47
  48 #include "l3fwd.h"
  49
  50 /*
  51  * Configurable number of RX/TX ring descriptors
  52  */
  53 #define RTE_TEST_RX_DESC_DEFAULT 1024
  54 #define RTE_TEST_TX_DESC_DEFAULT 1024
  55
  56 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
  57 #define MAX_RX_QUEUE_PER_PORT 128
  58
  59 #define MAX_LCORE_PARAMS 1024
  60
  61 /* Static global variables used within this file. */
  62 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  63 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  64
  65 /**< Ports set in promiscuous mode off by default. */
  66 static int promiscuous_on;
  67
  68 /* Select Longest-Prefix or Exact match. */
  69 static int l3fwd_lpm_on;
  70 static int l3fwd_em_on;
  71
  72 /* Global variables. */
  73
  74 static int numa_on = 1; /**< NUMA is enabled by default. */
  75 static int parse_ptype; /**< Parse packet type using rx callback, and */
  76                         /**< disabled by default */
  77 static int per_port_pool; /**< Use separate buffer pools per port; disabled */
  78                           /**< by default */
  79
  80 volatile bool force_quit;
  81
  82 /* ethernet addresses of ports */
  83 uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
  84 struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
  85
  86 xmm_t val_eth[RTE_MAX_ETHPORTS];
  87
  88 /* mask of enabled ports */
  89 uint32_t enabled_port_mask;
  90
  91 /* Used only in exact match mode. */
  92 int ipv6; /**< ipv6 is false by default. */
  93 uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
  94
  95 struct lcore_conf lcore_conf[RTE_MAX_LCORE];
  96
  97 struct lcore_params {
  98         uint16_t port_id;
  99         uint8_t queue_id;
 100         uint8_t lcore_id;
 101 } __rte_cache_aligned;
 102
 103 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 104 static struct lcore_params lcore_params_array_default[] = {
 105         {0, 0, 2},
 106         {0, 1, 2},
 107         {0, 2, 2},
 108         {1, 0, 2},
 109         {1, 1, 2},
 110         {1, 2, 2},
 111         {2, 0, 2},
 112         {3, 0, 3},
 113         {3, 1, 3},
 114 };
 115
 116 static struct lcore_params * lcore_params = lcore_params_array_default;
 117 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
 118                                 sizeof(lcore_params_array_default[0]);
 119
 120 static struct rte_eth_conf port_conf = {
 121         .rxmode = {
 122                 .mq_mode = ETH_MQ_RX_RSS,
 123                 .max_rx_pkt_len = ETHER_MAX_LEN,
 124                 .split_hdr_size = 0,
 125                 .offloads = DEV_RX_OFFLOAD_CHECKSUM,
 126         },
 127         .rx_adv_conf = {
 128                 .rss_conf = {
 129                         .rss_key = NULL,
 130                         .rss_hf = ETH_RSS_IP,
 131                 },
 132         },
 133         .txmode = {
 134                 .mq_mode = ETH_MQ_TX_NONE,
 135         },
 136 };
 137
 138 static struct rte_mempool *pktmbuf_pool[RTE_MAX_ETHPORTS][NB_SOCKETS];
 139 static uint8_t lkp_per_socket[NB_SOCKETS];
 140
 141 struct l3fwd_lkp_mode {
 142         void  (*setup)(int);
 143         int   (*check_ptype)(int);
 144         rte_rx_callback_fn cb_parse_ptype;
 145         int   (*main_loop)(void *);
 146         void* (*get_ipv4_lookup_struct)(int);
 147         void* (*get_ipv6_lookup_struct)(int);
 148 };
 149
 150 static struct l3fwd_lkp_mode l3fwd_lkp;
 151
 152 static struct l3fwd_lkp_mode l3fwd_em_lkp = {
 153         .setup                  = setup_hash,
 154         .check_ptype            = em_check_ptype,
 155         .cb_parse_ptype         = em_cb_parse_ptype,
 156         .main_loop              = em_main_loop,
 157         .get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
 158         .get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
 159 };
 160
 161 static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
 162         .setup                  = setup_lpm,
 163         .check_ptype            = lpm_check_ptype,
 164         .cb_parse_ptype         = lpm_cb_parse_ptype,
 165         .main_loop              = lpm_main_loop,
 166         .get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
 167         .get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
 168 };
 169
 170 /*
 171  * Setup lookup methods for forwarding.
 172  * Currently exact-match and longest-prefix-match
 173  * are supported ones.
 174  */
 175 static void
 176 setup_l3fwd_lookup_tables(void)
 177 {
 178         /* Setup HASH lookup functions. */
 179         if (l3fwd_em_on)
 180                 l3fwd_lkp = l3fwd_em_lkp;
 181         /* Setup LPM lookup functions. */
 182         else
 183                 l3fwd_lkp = l3fwd_lpm_lkp;
 184 }
 185
 186 static int
 187 check_lcore_params(void)
 188 {
 189         uint8_t queue, lcore;
 190         uint16_t i;
 191         int socketid;
 192
 193         for (i = 0; i < nb_lcore_params; ++i) {
 194                 queue = lcore_params[i].queue_id;
 195                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
 196                         printf("invalid queue number: %hhu\n", queue);
 197                         return -1;
 198                 }
 199                 lcore = lcore_params[i].lcore_id;
 200                 if (!rte_lcore_is_enabled(lcore)) {
 201                         printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
 202                         return -1;
 203                 }
 204                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
 205                         (numa_on == 0)) {
 206                         printf("warning: lcore %hhu is on socket %d with numa off \n",
 207                                 lcore, socketid);
 208                 }
 209         }
 210         return 0;
 211 }
 212
 213 static int
 214 check_port_config(void)
 215 {
 216         uint16_t portid;
 217         uint16_t i;
 218
 219         for (i = 0; i < nb_lcore_params; ++i) {
 220                 portid = lcore_params[i].port_id;
 221                 if ((enabled_port_mask & (1 << portid)) == 0) {
 222                         printf("port %u is not enabled in port mask\n", portid);
 223                         return -1;
 224                 }
 225                 if (!rte_eth_dev_is_valid_port(portid)) {
 226                         printf("port %u is not present on the board\n", portid);
 227                         return -1;
 228                 }
 229         }
 230         return 0;
 231 }
 232
 233 static uint8_t
 234 get_port_n_rx_queues(const uint16_t port)
 235 {
 236         int queue = -1;
 237         uint16_t i;
 238
 239         for (i = 0; i < nb_lcore_params; ++i) {
 240                 if (lcore_params[i].port_id == port) {
 241                         if (lcore_params[i].queue_id == queue+1)
 242                                 queue = lcore_params[i].queue_id;
 243                         else
 244                                 rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
 245                                                 " in sequence and must start with 0\n",
 246                                                 lcore_params[i].port_id);
 247                 }
 248         }
 249         return (uint8_t)(++queue);
 250 }
 251
 252 static int
 253 init_lcore_rx_queues(void)
 254 {
 255         uint16_t i, nb_rx_queue;
 256         uint8_t lcore;
 257
 258         for (i = 0; i < nb_lcore_params; ++i) {
 259                 lcore = lcore_params[i].lcore_id;
 260                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
 261                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
 262                         printf("error: too many queues (%u) for lcore: %u\n",
 263                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
 264                         return -1;
 265                 } else {
 266                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
 267                                 lcore_params[i].port_id;
 268                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
 269                                 lcore_params[i].queue_id;
 270                         lcore_conf[lcore].n_rx_queue++;
 271                 }
 272         }
 273         return 0;
 274 }
 275
 276 /* display usage */
 277 static void
 278 print_usage(const char *prgname)
 279 {
 280         fprintf(stderr, "%s [EAL options] --"
 281                 " -p PORTMASK"
 282                 " [-P]"
 283                 " [-E]"
 284                 " [-L]"
 285                 " --config (port,queue,lcore)[,(port,queue,lcore)]"
 286                 " [--eth-dest=X,MM:MM:MM:MM:MM:MM]"
 287                 " [--enable-jumbo [--max-pkt-len PKTLEN]]"
 288                 " [--no-numa]"
 289                 " [--hash-entry-num]"
 290                 " [--ipv6]"
 291                 " [--parse-ptype]"
 292                 " [--per-port-pool]\n\n"
 293
 294                 "  -p PORTMASK: Hexadecimal bitmask of ports to configure\n"
 295                 "  -P : Enable promiscuous mode\n"
 296                 "  -E : Enable exact match\n"
 297                 "  -L : Enable longest prefix match (default)\n"
 298                 "  --config (port,queue,lcore): Rx queue configuration\n"
 299                 "  --eth-dest=X,MM:MM:MM:MM:MM:MM: Ethernet destination for port X\n"
 300                 "  --enable-jumbo: Enable jumbo frames\n"
 301                 "  --max-pkt-len: Under the premise of enabling jumbo,\n"
 302                 "                 maximum packet length in decimal (64-9600)\n"
 303                 "  --no-numa: Disable numa awareness\n"
 304                 "  --hash-entry-num: Specify the hash entry number in hexadecimal to be setup\n"
 305                 "  --ipv6: Set if running ipv6 packets\n"
 306                 "  --parse-ptype: Set to use software to analyze packet type\n"
 307                 "  --per-port-pool: Use separate buffer pool per port\n\n",
 308                 prgname);
 309 }
 310
 311 static int
 312 parse_max_pkt_len(const char *pktlen)
 313 {
 314         char *end = NULL;
 315         unsigned long len;
 316
 317         /* parse decimal string */
 318         len = strtoul(pktlen, &end, 10);
 319         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
 320                 return -1;
 321
 322         if (len == 0)
 323                 return -1;
 324
 325         return len;
 326 }
 327
 328 static int
 329 parse_portmask(const char *portmask)
 330 {
 331         char *end = NULL;
 332         unsigned long pm;
 333
 334         /* parse hexadecimal string */
 335         pm = strtoul(portmask, &end, 16);
 336         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 337                 return -1;
 338
 339         if (pm == 0)
 340                 return -1;
 341
 342         return pm;
 343 }
 344
 345 static int
 346 parse_hash_entry_number(const char *hash_entry_num)
 347 {
 348         char *end = NULL;
 349         unsigned long hash_en;
 350         /* parse hexadecimal string */
 351         hash_en = strtoul(hash_entry_num, &end, 16);
 352         if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
 353                 return -1;
 354
 355         if (hash_en == 0)
 356                 return -1;
 357
 358         return hash_en;
 359 }
 360
 361 static int
 362 parse_config(const char *q_arg)
 363 {
 364         char s[256];
 365         const char *p, *p0 = q_arg;
 366         char *end;
 367         enum fieldnames {
 368                 FLD_PORT = 0,
 369                 FLD_QUEUE,
 370                 FLD_LCORE,
 371                 _NUM_FLD
 372         };
 373         unsigned long int_fld[_NUM_FLD];
 374         char *str_fld[_NUM_FLD];
 375         int i;
 376         unsigned size;
 377
 378         nb_lcore_params = 0;
 379
 380         while ((p = strchr(p0,'(')) != NULL) {
 381                 ++p;
 382                 if((p0 = strchr(p,')')) == NULL)
 383                         return -1;
 384
 385                 size = p0 - p;
 386                 if(size >= sizeof(s))
 387                         return -1;
 388
 389                 snprintf(s, sizeof(s), "%.*s", size, p);
 390                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
 391                         return -1;
 392                 for (i = 0; i < _NUM_FLD; i++){
 393                         errno = 0;
 394                         int_fld[i] = strtoul(str_fld[i], &end, 0);
 395                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
 396                                 return -1;
 397                 }
 398                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
 399                         printf("exceeded max number of lcore params: %hu\n",
 400                                 nb_lcore_params);
 401                         return -1;
 402                 }
 403                 lcore_params_array[nb_lcore_params].port_id =
 404                         (uint8_t)int_fld[FLD_PORT];
 405                 lcore_params_array[nb_lcore_params].queue_id =
 406                         (uint8_t)int_fld[FLD_QUEUE];
 407                 lcore_params_array[nb_lcore_params].lcore_id =
 408                         (uint8_t)int_fld[FLD_LCORE];
 409                 ++nb_lcore_params;
 410         }
 411         lcore_params = lcore_params_array;
 412         return 0;
 413 }
 414
 415 static void
 416 parse_eth_dest(const char *optarg)
 417 {
 418         uint16_t portid;
 419         char *port_end;
 420         uint8_t c, *dest, peer_addr[6];
 421
 422         errno = 0;
 423         portid = strtoul(optarg, &port_end, 10);
 424         if (errno != 0 || port_end == optarg || *port_end++ != ',')
 425                 rte_exit(EXIT_FAILURE,
 426                 "Invalid eth-dest: %s", optarg);
 427         if (portid >= RTE_MAX_ETHPORTS)
 428                 rte_exit(EXIT_FAILURE,
 429                 "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
 430                 portid, RTE_MAX_ETHPORTS);
 431
 432         if (cmdline_parse_etheraddr(NULL, port_end,
 433                 &peer_addr, sizeof(peer_addr)) < 0)
 434                 rte_exit(EXIT_FAILURE,
 435                 "Invalid ethernet address: %s\n",
 436                 port_end);
 437         dest = (uint8_t *)&dest_eth_addr[portid];
 438         for (c = 0; c < 6; c++)
 439                 dest[c] = peer_addr[c];
 440         *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 441 }
 442
 443 #define MAX_JUMBO_PKT_LEN  9600
 444 #define MEMPOOL_CACHE_SIZE 256
 445
 446 static const char short_options[] =
 447         "p:"  /* portmask */
 448         "P"   /* promiscuous */
 449         "L"   /* enable long prefix match */
 450         "E"   /* enable exact match */
 451         ;
 452
 453 #define CMD_LINE_OPT_CONFIG "config"
 454 #define CMD_LINE_OPT_ETH_DEST "eth-dest"
 455 #define CMD_LINE_OPT_NO_NUMA "no-numa"
 456 #define CMD_LINE_OPT_IPV6 "ipv6"
 457 #define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
 458 #define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
 459 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
 460 #define CMD_LINE_OPT_PER_PORT_POOL "per-port-pool"
 461 enum {
 462         /* long options mapped to a short option */
 463
 464         /* first long only option value must be >= 256, so that we won't
 465          * conflict with short options */
 466         CMD_LINE_OPT_MIN_NUM = 256,
 467         CMD_LINE_OPT_CONFIG_NUM,
 468         CMD_LINE_OPT_ETH_DEST_NUM,
 469         CMD_LINE_OPT_NO_NUMA_NUM,
 470         CMD_LINE_OPT_IPV6_NUM,
 471         CMD_LINE_OPT_ENABLE_JUMBO_NUM,
 472         CMD_LINE_OPT_HASH_ENTRY_NUM_NUM,
 473         CMD_LINE_OPT_PARSE_PTYPE_NUM,
 474         CMD_LINE_OPT_PARSE_PER_PORT_POOL,
 475 };
 476
 477 static const struct option lgopts[] = {
 478         {CMD_LINE_OPT_CONFIG, 1, 0, CMD_LINE_OPT_CONFIG_NUM},
 479         {CMD_LINE_OPT_ETH_DEST, 1, 0, CMD_LINE_OPT_ETH_DEST_NUM},
 480         {CMD_LINE_OPT_NO_NUMA, 0, 0, CMD_LINE_OPT_NO_NUMA_NUM},
 481         {CMD_LINE_OPT_IPV6, 0, 0, CMD_LINE_OPT_IPV6_NUM},
 482         {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, CMD_LINE_OPT_ENABLE_JUMBO_NUM},
 483         {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, CMD_LINE_OPT_HASH_ENTRY_NUM_NUM},
 484         {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, CMD_LINE_OPT_PARSE_PTYPE_NUM},
 485         {CMD_LINE_OPT_PER_PORT_POOL, 0, 0, CMD_LINE_OPT_PARSE_PER_PORT_POOL},
 486         {NULL, 0, 0, 0}
 487 };
 488
 489 /*
 490  * This expression is used to calculate the number of mbufs needed
 491  * depending on user input, taking  into account memory for rx and
 492  * tx hardware rings, cache per lcore and mtable per port per lcore.
 493  * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
 494  * value of 8192
 495  */
 496 #define NB_MBUF(nports) RTE_MAX(        \
 497         (nports*nb_rx_queue*nb_rxd +            \
 498         nports*nb_lcores*MAX_PKT_BURST +        \
 499         nports*n_tx_queue*nb_txd +              \
 500         nb_lcores*MEMPOOL_CACHE_SIZE),          \
 501         (unsigned)8192)
 502
 503 /* Parse the argument given in the command line of the application */
 504 static int
 505 parse_args(int argc, char **argv)
 506 {
 507         int opt, ret;
 508         char **argvopt;
 509         int option_index;
 510         char *prgname = argv[0];
 511
 512         argvopt = argv;
 513
 514         /* Error or normal output strings. */
 515         while ((opt = getopt_long(argc, argvopt, short_options,
 516                                 lgopts, &option_index)) != EOF) {
 517
 518                 switch (opt) {
 519                 /* portmask */
 520                 case 'p':
 521                         enabled_port_mask = parse_portmask(optarg);
 522                         if (enabled_port_mask == 0) {
 523                                 fprintf(stderr, "Invalid portmask\n");
 524                                 print_usage(prgname);
 525                                 return -1;
 526                         }
 527                         break;
 528
 529                 case 'P':
 530                         promiscuous_on = 1;
 531                         break;
 532
 533                 case 'E':
 534                         l3fwd_em_on = 1;
 535                         break;
 536
 537                 case 'L':
 538                         l3fwd_lpm_on = 1;
 539                         break;
 540
 541                 /* long options */
 542                 case CMD_LINE_OPT_CONFIG_NUM:
 543                         ret = parse_config(optarg);
 544                         if (ret) {
 545                                 fprintf(stderr, "Invalid config\n");
 546                                 print_usage(prgname);
 547                                 return -1;
 548                         }
 549                         break;
 550
 551                 case CMD_LINE_OPT_ETH_DEST_NUM:
 552                         parse_eth_dest(optarg);
 553                         break;
 554
 555                 case CMD_LINE_OPT_NO_NUMA_NUM:
 556                         numa_on = 0;
 557                         break;
 558
 559                 case CMD_LINE_OPT_IPV6_NUM:
 560                         ipv6 = 1;
 561                         break;
 562
 563                 case CMD_LINE_OPT_ENABLE_JUMBO_NUM: {
 564                         const struct option lenopts = {
 565                                 "max-pkt-len", required_argument, 0, 0
 566                         };
 567
 568                         port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 569                         port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
 570
 571                         /*
 572                          * if no max-pkt-len set, use the default
 573                          * value ETHER_MAX_LEN.
 574                          */
 575                         if (getopt_long(argc, argvopt, "",
 576                                         &lenopts, &option_index) == 0) {
 577                                 ret = parse_max_pkt_len(optarg);
 578                                 if (ret < 64 || ret > MAX_JUMBO_PKT_LEN) {
 579                                         fprintf(stderr,
 580                                                 "invalid maximum packet length\n");
 581                                         print_usage(prgname);
 582                                         return -1;
 583                                 }
 584                                 port_conf.rxmode.max_rx_pkt_len = ret;
 585                         }
 586                         break;
 587                 }
 588
 589                 case CMD_LINE_OPT_HASH_ENTRY_NUM_NUM:
 590                         ret = parse_hash_entry_number(optarg);
 591                         if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
 592                                 hash_entry_number = ret;
 593                         } else {
 594                                 fprintf(stderr, "invalid hash entry number\n");
 595                                 print_usage(prgname);
 596                                 return -1;
 597                         }
 598                         break;
 599
 600                 case CMD_LINE_OPT_PARSE_PTYPE_NUM:
 601                         printf("soft parse-ptype is enabled\n");
 602                         parse_ptype = 1;
 603                         break;
 604
 605                 case CMD_LINE_OPT_PARSE_PER_PORT_POOL:
 606                         printf("per port buffer pool is enabled\n");
 607                         per_port_pool = 1;
 608                         break;
 609
 610                 default:
 611                         print_usage(prgname);
 612                         return -1;
 613                 }
 614         }
 615
 616         /* If both LPM and EM are selected, return error. */
 617         if (l3fwd_lpm_on && l3fwd_em_on) {
 618                 fprintf(stderr, "LPM and EM are mutually exclusive, select only one\n");
 619                 return -1;
 620         }
 621
 622         /*
 623          * Nothing is selected, pick longest-prefix match
 624          * as default match.
 625          */
 626         if (!l3fwd_lpm_on && !l3fwd_em_on) {
 627                 fprintf(stderr, "LPM or EM none selected, default LPM on\n");
 628                 l3fwd_lpm_on = 1;
 629         }
 630
 631         /*
 632          * ipv6 and hash flags are valid only for
 633          * exact macth, reset them to default for
 634          * longest-prefix match.
 635          */
 636         if (l3fwd_lpm_on) {
 637                 ipv6 = 0;
 638                 hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 639         }
 640
 641         if (optind >= 0)
 642                 argv[optind-1] = prgname;
 643
 644         ret = optind-1;
 645         optind = 1; /* reset getopt lib */
 646         return ret;
 647 }
 648
 649 static void
 650 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
 651 {
 652         char buf[ETHER_ADDR_FMT_SIZE];
 653         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
 654         printf("%s%s", name, buf);
 655 }
 656
 657 static int
 658 init_mem(uint16_t portid, unsigned int nb_mbuf)
 659 {
 660         struct lcore_conf *qconf;
 661         int socketid;
 662         unsigned lcore_id;
 663         char s[64];
 664
 665         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 666                 if (rte_lcore_is_enabled(lcore_id) == 0)
 667                         continue;
 668
 669                 if (numa_on)
 670                         socketid = rte_lcore_to_socket_id(lcore_id);
 671                 else
 672                         socketid = 0;
 673
 674                 if (socketid >= NB_SOCKETS) {
 675                         rte_exit(EXIT_FAILURE,
 676                                 "Socket %d of lcore %u is out of range %d\n",
 677                                 socketid, lcore_id, NB_SOCKETS);
 678                 }
 679
 680                 if (pktmbuf_pool[portid][socketid] == NULL) {
 681                         snprintf(s, sizeof(s), "mbuf_pool_%d:%d",
 682                                  portid, socketid);
 683                         pktmbuf_pool[portid][socketid] =
 684                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 685                                         MEMPOOL_CACHE_SIZE, 0,
 686                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 687                         if (pktmbuf_pool[portid][socketid] == NULL)
 688                                 rte_exit(EXIT_FAILURE,
 689                                         "Cannot init mbuf pool on socket %d\n",
 690                                         socketid);
 691                         else
 692                                 printf("Allocated mbuf pool on socket %d\n",
 693                                         socketid);
 694
 695                         /* Setup either LPM or EM(f.e Hash). But, only once per
 696                          * available socket.
 697                          */
 698                         if (!lkp_per_socket[socketid]) {
 699                                 l3fwd_lkp.setup(socketid);
 700                                 lkp_per_socket[socketid] = 1;
 701                         }
 702                 }
 703                 qconf = &lcore_conf[lcore_id];
 704                 qconf->ipv4_lookup_struct =
 705                         l3fwd_lkp.get_ipv4_lookup_struct(socketid);
 706                 qconf->ipv6_lookup_struct =
 707                         l3fwd_lkp.get_ipv6_lookup_struct(socketid);
 708         }
 709         return 0;
 710 }
 711
 712 /* Check the link status of all ports in up to 9s, and print them finally */
 713 static void
 714 check_all_ports_link_status(uint32_t port_mask)
 715 {
 716 #define CHECK_INTERVAL 100 /* 100ms */
 717 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 718         uint16_t portid;
 719         uint8_t count, all_ports_up, print_flag = 0;
 720         struct rte_eth_link link;
 721
 722         printf("\nChecking link status");
 723         fflush(stdout);
 724         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 725                 if (force_quit)
 726                         return;
 727                 all_ports_up = 1;
 728                 RTE_ETH_FOREACH_DEV(portid) {
 729                         if (force_quit)
 730                                 return;
 731                         if ((port_mask & (1 << portid)) == 0)
 732                                 continue;
 733                         memset(&link, 0, sizeof(link));
 734                         rte_eth_link_get_nowait(portid, &link);
 735                         /* print link status if flag set */
 736                         if (print_flag == 1) {
 737                                 if (link.link_status)
 738                                         printf(
 739                                         "Port%d Link Up. Speed %u Mbps -%s\n",
 740                                                 portid, link.link_speed,
 741                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 742                                         ("full-duplex") : ("half-duplex\n"));
 743                                 else
 744                                         printf("Port %d Link Down\n", portid);
 745                                 continue;
 746                         }
 747                         /* clear all_ports_up flag if any link down */
 748                         if (link.link_status == ETH_LINK_DOWN) {
 749                                 all_ports_up = 0;
 750                                 break;
 751                         }
 752                 }
 753                 /* after finally printing all link status, get out */
 754                 if (print_flag == 1)
 755                         break;
 756
 757                 if (all_ports_up == 0) {
 758                         printf(".");
 759                         fflush(stdout);
 760                         rte_delay_ms(CHECK_INTERVAL);
 761                 }
 762
 763                 /* set the print_flag if all ports up or timeout */
 764                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 765                         print_flag = 1;
 766                         printf("done\n");
 767                 }
 768         }
 769 }
 770
 771 static void
 772 signal_handler(int signum)
 773 {
 774         if (signum == SIGINT || signum == SIGTERM) {
 775                 printf("\n\nSignal %d received, preparing to exit...\n",
 776                                 signum);
 777                 force_quit = true;
 778         }
 779 }
 780
 781 static int
 782 prepare_ptype_parser(uint16_t portid, uint16_t queueid)
 783 {
 784         if (parse_ptype) {
 785                 printf("Port %d: softly parse packet type info\n", portid);
 786                 if (rte_eth_add_rx_callback(portid, queueid,
 787                                             l3fwd_lkp.cb_parse_ptype,
 788                                             NULL))
 789                         return 1;
 790
 791                 printf("Failed to add rx callback: port=%d\n", portid);
 792                 return 0;
 793         }
 794
 795         if (l3fwd_lkp.check_ptype(portid))
 796                 return 1;
 797
 798         printf("port %d cannot parse packet type, please add --%s\n",
 799                portid, CMD_LINE_OPT_PARSE_PTYPE);
 800         return 0;
 801 }
 802
 803 int
 804 main(int argc, char **argv)
 805 {
 806         struct lcore_conf *qconf;
 807         struct rte_eth_dev_info dev_info;
 808         struct rte_eth_txconf *txconf;
 809         int ret;
 810         unsigned nb_ports;
 811         uint16_t queueid, portid;
 812         unsigned lcore_id;
 813         uint32_t n_tx_queue, nb_lcores;
 814         uint8_t nb_rx_queue, queue, socketid;
 815
 816         /* init EAL */
 817         ret = rte_eal_init(argc, argv);
 818         if (ret < 0)
 819                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
 820         argc -= ret;
 821         argv += ret;
 822
 823         force_quit = false;
 824         signal(SIGINT, signal_handler);
 825         signal(SIGTERM, signal_handler);
 826
 827         /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
 828         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 829                 dest_eth_addr[portid] =
 830                         ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
 831                 *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 832         }
 833
 834         /* parse application arguments (after the EAL ones) */
 835         ret = parse_args(argc, argv);
 836         if (ret < 0)
 837                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
 838
 839         if (check_lcore_params() < 0)
 840                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
 841
 842         ret = init_lcore_rx_queues();
 843         if (ret < 0)
 844                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
 845
 846         nb_ports = rte_eth_dev_count_avail();
 847
 848         if (check_port_config() < 0)
 849                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
 850
 851         nb_lcores = rte_lcore_count();
 852
 853         /* Setup function pointers for lookup method. */
 854         setup_l3fwd_lookup_tables();
 855
 856         /* initialize all ports */
 857         RTE_ETH_FOREACH_DEV(portid) {
 858                 struct rte_eth_conf local_port_conf = port_conf;
 859
 860                 /* skip ports that are not enabled */
 861                 if ((enabled_port_mask & (1 << portid)) == 0) {
 862                         printf("\nSkipping disabled port %d\n", portid);
 863                         continue;
 864                 }
 865
 866                 /* init port */
 867                 printf("Initializing port %d ... ", portid );
 868                 fflush(stdout);
 869
 870                 nb_rx_queue = get_port_n_rx_queues(portid);
 871                 n_tx_queue = nb_lcores;
 872                 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
 873                         n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 874                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 875                         nb_rx_queue, (unsigned)n_tx_queue );
 876
 877                 rte_eth_dev_info_get(portid, &dev_info);
 878                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 879                         local_port_conf.txmode.offloads |=
 880                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 881
 882                 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
 883                         dev_info.flow_type_rss_offloads;
 884                 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
 885                                 port_conf.rx_adv_conf.rss_conf.rss_hf) {
 886                         printf("Port %u modified RSS hash function based on hardware support,"
 887                                 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
 888                                 portid,
 889                                 port_conf.rx_adv_conf.rss_conf.rss_hf,
 890                                 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
 891                 }
 892
 893                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 894                                         (uint16_t)n_tx_queue, &local_port_conf);
 895                 if (ret < 0)
 896                         rte_exit(EXIT_FAILURE,
 897                                 "Cannot configure device: err=%d, port=%d\n",
 898                                 ret, portid);
 899
 900                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 901                                                        &nb_txd);
 902                 if (ret < 0)
 903                         rte_exit(EXIT_FAILURE,
 904                                  "Cannot adjust number of descriptors: err=%d, "
 905                                  "port=%d\n", ret, portid);
 906
 907                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 908                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
 909                 printf(", ");
 910                 print_ethaddr("Destination:",
 911                         (const struct rte_ether_addr *)&dest_eth_addr[portid]);
 912                 printf(", ");
 913
 914                 /*
 915                  * prepare src MACs for each port.
 916                  */
 917                 ether_addr_copy(&ports_eth_addr[portid],
 918                         (struct rte_ether_addr *)(val_eth + portid) + 1);
 919
 920                 /* init memory */
 921                 if (!per_port_pool) {
 922                         /* portid = 0; this is *not* signifying the first port,
 923                          * rather, it signifies that portid is ignored.
 924                          */
 925                         ret = init_mem(0, NB_MBUF(nb_ports));
 926                 } else {
 927                         ret = init_mem(portid, NB_MBUF(1));
 928                 }
 929                 if (ret < 0)
 930                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
 931
 932                 /* init one TX queue per couple (lcore,port) */
 933                 queueid = 0;
 934                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 935                         if (rte_lcore_is_enabled(lcore_id) == 0)
 936                                 continue;
 937
 938                         if (numa_on)
 939                                 socketid =
 940                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 941                         else
 942                                 socketid = 0;
 943
 944                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 945                         fflush(stdout);
 946
 947                         txconf = &dev_info.default_txconf;
 948                         txconf->offloads = local_port_conf.txmode.offloads;
 949                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
 950                                                      socketid, txconf);
 951                         if (ret < 0)
 952                                 rte_exit(EXIT_FAILURE,
 953                                         "rte_eth_tx_queue_setup: err=%d, "
 954                                         "port=%d\n", ret, portid);
 955
 956                         qconf = &lcore_conf[lcore_id];
 957                         qconf->tx_queue_id[portid] = queueid;
 958                         queueid++;
 959
 960                         qconf->tx_port_id[qconf->n_tx_port] = portid;
 961                         qconf->n_tx_port++;
 962                 }
 963                 printf("\n");
 964         }
 965
 966         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 967                 if (rte_lcore_is_enabled(lcore_id) == 0)
 968                         continue;
 969                 qconf = &lcore_conf[lcore_id];
 970                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
 971                 fflush(stdout);
 972                 /* init RX queues */
 973                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
 974                         struct rte_eth_dev *dev;
 975                         struct rte_eth_conf *conf;
 976                         struct rte_eth_rxconf rxq_conf;
 977
 978                         portid = qconf->rx_queue_list[queue].port_id;
 979                         queueid = qconf->rx_queue_list[queue].queue_id;
 980                         dev = &rte_eth_devices[portid];
 981                         conf = &dev->data->dev_conf;
 982
 983                         if (numa_on)
 984                                 socketid =
 985                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 986                         else
 987                                 socketid = 0;
 988
 989                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 990                         fflush(stdout);
 991
 992                         rte_eth_dev_info_get(portid, &dev_info);
 993                         rxq_conf = dev_info.default_rxconf;
 994                         rxq_conf.offloads = conf->rxmode.offloads;
 995                         if (!per_port_pool)
 996                                 ret = rte_eth_rx_queue_setup(portid, queueid,
 997                                                 nb_rxd, socketid,
 998                                                 &rxq_conf,
 999                                                 pktmbuf_pool[0][socketid]);
1000                         else
1001                                 ret = rte_eth_rx_queue_setup(portid, queueid,
1002                                                 nb_rxd, socketid,
1003                                                 &rxq_conf,
1004                                                 pktmbuf_pool[portid][socketid]);
1005                         if (ret < 0)
1006                                 rte_exit(EXIT_FAILURE,
1007                                 "rte_eth_rx_queue_setup: err=%d, port=%d\n",
1008                                 ret, portid);
1009                 }
1010         }
1011
1012         printf("\n");
1013
1014         /* start ports */
1015         RTE_ETH_FOREACH_DEV(portid) {
1016                 if ((enabled_port_mask & (1 << portid)) == 0) {
1017                         continue;
1018                 }
1019                 /* Start device */
1020                 ret = rte_eth_dev_start(portid);
1021                 if (ret < 0)
1022                         rte_exit(EXIT_FAILURE,
1023                                 "rte_eth_dev_start: err=%d, port=%d\n",
1024                                 ret, portid);
1025
1026                 /*
1027                  * If enabled, put device in promiscuous mode.
1028                  * This allows IO forwarding mode to forward packets
1029                  * to itself through 2 cross-connected  ports of the
1030                  * target machine.
1031                  */
1032                 if (promiscuous_on)
1033                         rte_eth_promiscuous_enable(portid);
1034         }
1035
1036         printf("\n");
1037
1038         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1039                 if (rte_lcore_is_enabled(lcore_id) == 0)
1040                         continue;
1041                 qconf = &lcore_conf[lcore_id];
1042                 for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
1043                         portid = qconf->rx_queue_list[queue].port_id;
1044                         queueid = qconf->rx_queue_list[queue].queue_id;
1045                         if (prepare_ptype_parser(portid, queueid) == 0)
1046                                 rte_exit(EXIT_FAILURE, "ptype check fails\n");
1047                 }
1048         }
1049
1050
1051         check_all_ports_link_status(enabled_port_mask);
1052
1053         ret = 0;
1054         /* launch per-lcore init on every lcore */
1055         rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MASTER);
1056         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1057                 if (rte_eal_wait_lcore(lcore_id) < 0) {
1058                         ret = -1;
1059                         break;
1060                 }
1061         }
1062
1063         /* stop ports */
1064         RTE_ETH_FOREACH_DEV(portid) {
1065                 if ((enabled_port_mask & (1 << portid)) == 0)
1066                         continue;
1067                 printf("Closing port %d...", portid);
1068                 rte_eth_dev_stop(portid);
1069                 rte_eth_dev_close(portid);
1070                 printf(" Done\n");
1071         }
1072         printf("Bye...\n");
1073
1074         return ret;
1075 }