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