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