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 128
  54 #define RTE_TEST_TX_DESC_DEFAULT 512
  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                 .header_split   = 0, /**< Header Split disabled */
 124                 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
 125                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 126                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 127                 .hw_strip_crc   = 1, /**< CRC stripped by hardware */
 128         },
 129         .rx_adv_conf = {
 130                 .rss_conf = {
 131                         .rss_key = NULL,
 132                         .rss_hf = ETH_RSS_IP,
 133                 },
 134         },
 135         .txmode = {
 136                 .mq_mode = ETH_MQ_TX_NONE,
 137         },
 138 };
 139
 140 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 141
 142 struct l3fwd_lkp_mode {
 143         void  (*setup)(int);
 144         int   (*check_ptype)(int);
 145         rte_rx_callback_fn cb_parse_ptype;
 146         int   (*main_loop)(void *);
 147         void* (*get_ipv4_lookup_struct)(int);
 148         void* (*get_ipv6_lookup_struct)(int);
 149 };
 150
 151 static struct l3fwd_lkp_mode l3fwd_lkp;
 152
 153 static struct l3fwd_lkp_mode l3fwd_em_lkp = {
 154         .setup                  = setup_hash,
 155         .check_ptype            = em_check_ptype,
 156         .cb_parse_ptype         = em_cb_parse_ptype,
 157         .main_loop              = em_main_loop,
 158         .get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
 159         .get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
 160 };
 161
 162 static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
 163         .setup                  = setup_lpm,
 164         .check_ptype            = lpm_check_ptype,
 165         .cb_parse_ptype         = lpm_cb_parse_ptype,
 166         .main_loop              = lpm_main_loop,
 167         .get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
 168         .get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
 169 };
 170
 171 /*
 172  * Setup lookup methods for forwarding.
 173  * Currently exact-match and longest-prefix-match
 174  * are supported ones.
 175  */
 176 static void
 177 setup_l3fwd_lookup_tables(void)
 178 {
 179         /* Setup HASH lookup functions. */
 180         if (l3fwd_em_on)
 181                 l3fwd_lkp = l3fwd_em_lkp;
 182         /* Setup LPM lookup functions. */
 183         else
 184                 l3fwd_lkp = l3fwd_lpm_lkp;
 185 }
 186
 187 static int
 188 check_lcore_params(void)
 189 {
 190         uint8_t queue, lcore;
 191         uint16_t i;
 192         int socketid;
 193
 194         for (i = 0; i < nb_lcore_params; ++i) {
 195                 queue = lcore_params[i].queue_id;
 196                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
 197                         printf("invalid queue number: %hhu\n", queue);
 198                         return -1;
 199                 }
 200                 lcore = lcore_params[i].lcore_id;
 201                 if (!rte_lcore_is_enabled(lcore)) {
 202                         printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
 203                         return -1;
 204                 }
 205                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
 206                         (numa_on == 0)) {
 207                         printf("warning: lcore %hhu is on socket %d with numa off \n",
 208                                 lcore, socketid);
 209                 }
 210         }
 211         return 0;
 212 }
 213
 214 static int
 215 check_port_config(const unsigned nb_ports)
 216 {
 217         uint16_t portid;
 218         uint16_t i;
 219
 220         for (i = 0; i < nb_lcore_params; ++i) {
 221                 portid = lcore_params[i].port_id;
 222                 if ((enabled_port_mask & (1 << portid)) == 0) {
 223                         printf("port %u is not enabled in port mask\n", portid);
 224                         return -1;
 225                 }
 226                 if (portid >= nb_ports) {
 227                         printf("port %u is not present on the board\n", portid);
 228                         return -1;
 229                 }
 230         }
 231         return 0;
 232 }
 233
 234 static uint8_t
 235 get_port_n_rx_queues(const uint16_t port)
 236 {
 237         int queue = -1;
 238         uint16_t i;
 239
 240         for (i = 0; i < nb_lcore_params; ++i) {
 241                 if (lcore_params[i].port_id == port) {
 242                         if (lcore_params[i].queue_id == queue+1)
 243                                 queue = lcore_params[i].queue_id;
 244                         else
 245                                 rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
 246                                                 " in sequence and must start with 0\n",
 247                                                 lcore_params[i].port_id);
 248                 }
 249         }
 250         return (uint8_t)(++queue);
 251 }
 252
 253 static int
 254 init_lcore_rx_queues(void)
 255 {
 256         uint16_t i, nb_rx_queue;
 257         uint8_t lcore;
 258
 259         for (i = 0; i < nb_lcore_params; ++i) {
 260                 lcore = lcore_params[i].lcore_id;
 261                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
 262                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
 263                         printf("error: too many queues (%u) for lcore: %u\n",
 264                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
 265                         return -1;
 266                 } else {
 267                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
 268                                 lcore_params[i].port_id;
 269                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
 270                                 lcore_params[i].queue_id;
 271                         lcore_conf[lcore].n_rx_queue++;
 272                 }
 273         }
 274         return 0;
 275 }
 276
 277 /* display usage */
 278 static void
 279 print_usage(const char *prgname)
 280 {
 281         printf("%s [EAL options] --"
 282                 " -p PORTMASK"
 283                 " [-P]"
 284                 " [-E]"
 285                 " [-L]"
 286                 " --config (port,queue,lcore)[,(port,queue,lcore)]"
 287                 " [--eth-dest=X,MM:MM:MM:MM:MM:MM]"
 288                 " [--enable-jumbo [--max-pkt-len PKTLEN]]"
 289                 " [--no-numa]"
 290                 " [--hash-entry-num]"
 291                 " [--ipv6]"
 292                 " [--parse-ptype]\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\n",
 307                 prgname);
 308 }
 309
 310 static int
 311 parse_max_pkt_len(const char *pktlen)
 312 {
 313         char *end = NULL;
 314         unsigned long len;
 315
 316         /* parse decimal string */
 317         len = strtoul(pktlen, &end, 10);
 318         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
 319                 return -1;
 320
 321         if (len == 0)
 322                 return -1;
 323
 324         return len;
 325 }
 326
 327 static int
 328 parse_portmask(const char *portmask)
 329 {
 330         char *end = NULL;
 331         unsigned long pm;
 332
 333         /* parse hexadecimal string */
 334         pm = strtoul(portmask, &end, 16);
 335         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 336                 return -1;
 337
 338         if (pm == 0)
 339                 return -1;
 340
 341         return pm;
 342 }
 343
 344 static int
 345 parse_hash_entry_number(const char *hash_entry_num)
 346 {
 347         char *end = NULL;
 348         unsigned long hash_en;
 349         /* parse hexadecimal string */
 350         hash_en = strtoul(hash_entry_num, &end, 16);
 351         if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
 352                 return -1;
 353
 354         if (hash_en == 0)
 355                 return -1;
 356
 357         return hash_en;
 358 }
 359
 360 static int
 361 parse_config(const char *q_arg)
 362 {
 363         char s[256];
 364         const char *p, *p0 = q_arg;
 365         char *end;
 366         enum fieldnames {
 367                 FLD_PORT = 0,
 368                 FLD_QUEUE,
 369                 FLD_LCORE,
 370                 _NUM_FLD
 371         };
 372         unsigned long int_fld[_NUM_FLD];
 373         char *str_fld[_NUM_FLD];
 374         int i;
 375         unsigned size;
 376
 377         nb_lcore_params = 0;
 378
 379         while ((p = strchr(p0,'(')) != NULL) {
 380                 ++p;
 381                 if((p0 = strchr(p,')')) == NULL)
 382                         return -1;
 383
 384                 size = p0 - p;
 385                 if(size >= sizeof(s))
 386                         return -1;
 387
 388                 snprintf(s, sizeof(s), "%.*s", size, p);
 389                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
 390                         return -1;
 391                 for (i = 0; i < _NUM_FLD; i++){
 392                         errno = 0;
 393                         int_fld[i] = strtoul(str_fld[i], &end, 0);
 394                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
 395                                 return -1;
 396                 }
 397                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
 398                         printf("exceeded max number of lcore params: %hu\n",
 399                                 nb_lcore_params);
 400                         return -1;
 401                 }
 402                 lcore_params_array[nb_lcore_params].port_id =
 403                         (uint8_t)int_fld[FLD_PORT];
 404                 lcore_params_array[nb_lcore_params].queue_id =
 405                         (uint8_t)int_fld[FLD_QUEUE];
 406                 lcore_params_array[nb_lcore_params].lcore_id =
 407                         (uint8_t)int_fld[FLD_LCORE];
 408                 ++nb_lcore_params;
 409         }
 410         lcore_params = lcore_params_array;
 411         return 0;
 412 }
 413
 414 static void
 415 parse_eth_dest(const char *optarg)
 416 {
 417         uint16_t portid;
 418         char *port_end;
 419         uint8_t c, *dest, peer_addr[6];
 420
 421         errno = 0;
 422         portid = strtoul(optarg, &port_end, 10);
 423         if (errno != 0 || port_end == optarg || *port_end++ != ',')
 424                 rte_exit(EXIT_FAILURE,
 425                 "Invalid eth-dest: %s", optarg);
 426         if (portid >= RTE_MAX_ETHPORTS)
 427                 rte_exit(EXIT_FAILURE,
 428                 "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
 429                 portid, RTE_MAX_ETHPORTS);
 430
 431         if (cmdline_parse_etheraddr(NULL, port_end,
 432                 &peer_addr, sizeof(peer_addr)) < 0)
 433                 rte_exit(EXIT_FAILURE,
 434                 "Invalid ethernet address: %s\n",
 435                 port_end);
 436         dest = (uint8_t *)&dest_eth_addr[portid];
 437         for (c = 0; c < 6; c++)
 438                 dest[c] = peer_addr[c];
 439         *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 440 }
 441
 442 #define MAX_JUMBO_PKT_LEN  9600
 443 #define MEMPOOL_CACHE_SIZE 256
 444
 445 static const char short_options[] =
 446         "p:"  /* portmask */
 447         "P"   /* promiscuous */
 448         "L"   /* enable long prefix match */
 449         "E"   /* enable exact match */
 450         ;
 451
 452 #define CMD_LINE_OPT_CONFIG "config"
 453 #define CMD_LINE_OPT_ETH_DEST "eth-dest"
 454 #define CMD_LINE_OPT_NO_NUMA "no-numa"
 455 #define CMD_LINE_OPT_IPV6 "ipv6"
 456 #define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
 457 #define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
 458 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
 459 enum {
 460         /* long options mapped to a short option */
 461
 462         /* first long only option value must be >= 256, so that we won't
 463          * conflict with short options */
 464         CMD_LINE_OPT_MIN_NUM = 256,
 465         CMD_LINE_OPT_CONFIG_NUM,
 466         CMD_LINE_OPT_ETH_DEST_NUM,
 467         CMD_LINE_OPT_NO_NUMA_NUM,
 468         CMD_LINE_OPT_IPV6_NUM,
 469         CMD_LINE_OPT_ENABLE_JUMBO_NUM,
 470         CMD_LINE_OPT_HASH_ENTRY_NUM_NUM,
 471         CMD_LINE_OPT_PARSE_PTYPE_NUM,
 472 };
 473
 474 static const struct option lgopts[] = {
 475         {CMD_LINE_OPT_CONFIG, 1, 0, CMD_LINE_OPT_CONFIG_NUM},
 476         {CMD_LINE_OPT_ETH_DEST, 1, 0, CMD_LINE_OPT_ETH_DEST_NUM},
 477         {CMD_LINE_OPT_NO_NUMA, 0, 0, CMD_LINE_OPT_NO_NUMA_NUM},
 478         {CMD_LINE_OPT_IPV6, 0, 0, CMD_LINE_OPT_IPV6_NUM},
 479         {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, CMD_LINE_OPT_ENABLE_JUMBO_NUM},
 480         {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, CMD_LINE_OPT_HASH_ENTRY_NUM_NUM},
 481         {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, CMD_LINE_OPT_PARSE_PTYPE_NUM},
 482         {NULL, 0, 0, 0}
 483 };
 484
 485 /*
 486  * This expression is used to calculate the number of mbufs needed
 487  * depending on user input, taking  into account memory for rx and
 488  * tx hardware rings, cache per lcore and mtable per port per lcore.
 489  * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
 490  * value of 8192
 491  */
 492 #define NB_MBUF RTE_MAX(        \
 493         (nb_ports*nb_rx_queue*nb_rxd +          \
 494         nb_ports*nb_lcores*MAX_PKT_BURST +      \
 495         nb_ports*n_tx_queue*nb_txd +            \
 496         nb_lcores*MEMPOOL_CACHE_SIZE),          \
 497         (unsigned)8192)
 498
 499 /* Parse the argument given in the command line of the application */
 500 static int
 501 parse_args(int argc, char **argv)
 502 {
 503         int opt, ret;
 504         char **argvopt;
 505         int option_index;
 506         char *prgname = argv[0];
 507
 508         argvopt = argv;
 509
 510         /* Error or normal output strings. */
 511         const char *str1 = "L3FWD: Invalid portmask";
 512         const char *str2 = "L3FWD: Promiscuous mode selected";
 513         const char *str3 = "L3FWD: Exact match selected";
 514         const char *str4 = "L3FWD: Longest-prefix match selected";
 515         const char *str5 = "L3FWD: Invalid config";
 516         const char *str6 = "L3FWD: NUMA is disabled";
 517         const char *str7 = "L3FWD: IPV6 is specified";
 518         const char *str8 =
 519                 "L3FWD: Jumbo frame is enabled - disabling simple TX path";
 520         const char *str9 = "L3FWD: Invalid packet length";
 521         const char *str10 = "L3FWD: Set jumbo frame max packet len to ";
 522         const char *str11 = "L3FWD: Invalid hash entry number";
 523         const char *str12 =
 524                 "L3FWD: LPM and EM are mutually exclusive, select only one";
 525         const char *str13 = "L3FWD: LPM or EM none selected, default LPM on";
 526
 527         while ((opt = getopt_long(argc, argvopt, short_options,
 528                                 lgopts, &option_index)) != EOF) {
 529
 530                 switch (opt) {
 531                 /* portmask */
 532                 case 'p':
 533                         enabled_port_mask = parse_portmask(optarg);
 534                         if (enabled_port_mask == 0) {
 535                                 printf("%s\n", str1);
 536                                 print_usage(prgname);
 537                                 return -1;
 538                         }
 539                         break;
 540
 541                 case 'P':
 542                         printf("%s\n", str2);
 543                         promiscuous_on = 1;
 544                         break;
 545
 546                 case 'E':
 547                         printf("%s\n", str3);
 548                         l3fwd_em_on = 1;
 549                         break;
 550
 551                 case 'L':
 552                         printf("%s\n", str4);
 553                         l3fwd_lpm_on = 1;
 554                         break;
 555
 556                 /* long options */
 557                 case CMD_LINE_OPT_CONFIG_NUM:
 558                         ret = parse_config(optarg);
 559                         if (ret) {
 560                                 printf("%s\n", str5);
 561                                 print_usage(prgname);
 562                                 return -1;
 563                         }
 564                         break;
 565
 566                 case CMD_LINE_OPT_ETH_DEST_NUM:
 567                         parse_eth_dest(optarg);
 568                         break;
 569
 570                 case CMD_LINE_OPT_NO_NUMA_NUM:
 571                         printf("%s\n", str6);
 572                         numa_on = 0;
 573                         break;
 574
 575                 case CMD_LINE_OPT_IPV6_NUM:
 576                         printf("%sn", str7);
 577                         ipv6 = 1;
 578                         break;
 579
 580                 case CMD_LINE_OPT_ENABLE_JUMBO_NUM: {
 581                         struct option lenopts = {
 582                                 "max-pkt-len", required_argument, 0, 0
 583                         };
 584
 585                         printf("%s\n", str8);
 586                         port_conf.rxmode.jumbo_frame = 1;
 587
 588                         /*
 589                          * if no max-pkt-len set, use the default
 590                          * value ETHER_MAX_LEN.
 591                          */
 592                         if (getopt_long(argc, argvopt, "",
 593                                         &lenopts, &option_index) == 0) {
 594                                 ret = parse_max_pkt_len(optarg);
 595                                 if ((ret < 64) ||
 596                                         (ret > MAX_JUMBO_PKT_LEN)) {
 597                                         printf("%s\n", str9);
 598                                         print_usage(prgname);
 599                                         return -1;
 600                                 }
 601                                 port_conf.rxmode.max_rx_pkt_len = ret;
 602                         }
 603                         printf("%s %u\n", str10,
 604                                 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
 605                         break;
 606                 }
 607
 608                 case CMD_LINE_OPT_HASH_ENTRY_NUM_NUM:
 609                         ret = parse_hash_entry_number(optarg);
 610                         if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
 611                                 hash_entry_number = ret;
 612                         } else {
 613                                 printf("%s\n", str11);
 614                                 print_usage(prgname);
 615                                 return -1;
 616                         }
 617                         break;
 618
 619                 case CMD_LINE_OPT_PARSE_PTYPE_NUM:
 620                         printf("soft parse-ptype is enabled\n");
 621                         parse_ptype = 1;
 622                         break;
 623
 624                 default:
 625                         print_usage(prgname);
 626                         return -1;
 627                 }
 628         }
 629
 630         /* If both LPM and EM are selected, return error. */
 631         if (l3fwd_lpm_on && l3fwd_em_on) {
 632                 printf("%s\n", str12);
 633                 return -1;
 634         }
 635
 636         /*
 637          * Nothing is selected, pick longest-prefix match
 638          * as default match.
 639          */
 640         if (!l3fwd_lpm_on && !l3fwd_em_on) {
 641                 l3fwd_lpm_on = 1;
 642                 printf("%s\n", str13);
 643         }
 644
 645         /*
 646          * ipv6 and hash flags are valid only for
 647          * exact macth, reset them to default for
 648          * longest-prefix match.
 649          */
 650         if (l3fwd_lpm_on) {
 651                 ipv6 = 0;
 652                 hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 653         }
 654
 655         if (optind >= 0)
 656                 argv[optind-1] = prgname;
 657
 658         ret = optind-1;
 659         optind = 1; /* reset getopt lib */
 660         return ret;
 661 }
 662
 663 static void
 664 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
 665 {
 666         char buf[ETHER_ADDR_FMT_SIZE];
 667         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
 668         printf("%s%s", name, buf);
 669 }
 670
 671 static int
 672 init_mem(unsigned nb_mbuf)
 673 {
 674         struct lcore_conf *qconf;
 675         int socketid;
 676         unsigned lcore_id;
 677         char s[64];
 678
 679         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 680                 if (rte_lcore_is_enabled(lcore_id) == 0)
 681                         continue;
 682
 683                 if (numa_on)
 684                         socketid = rte_lcore_to_socket_id(lcore_id);
 685                 else
 686                         socketid = 0;
 687
 688                 if (socketid >= NB_SOCKETS) {
 689                         rte_exit(EXIT_FAILURE,
 690                                 "Socket %d of lcore %u is out of range %d\n",
 691                                 socketid, lcore_id, NB_SOCKETS);
 692                 }
 693
 694                 if (pktmbuf_pool[socketid] == NULL) {
 695                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 696                         pktmbuf_pool[socketid] =
 697                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 698                                         MEMPOOL_CACHE_SIZE, 0,
 699                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 700                         if (pktmbuf_pool[socketid] == NULL)
 701                                 rte_exit(EXIT_FAILURE,
 702                                         "Cannot init mbuf pool on socket %d\n",
 703                                         socketid);
 704                         else
 705                                 printf("Allocated mbuf pool on socket %d\n",
 706                                         socketid);
 707
 708                         /* Setup either LPM or EM(f.e Hash).  */
 709                         l3fwd_lkp.setup(socketid);
 710                 }
 711                 qconf = &lcore_conf[lcore_id];
 712                 qconf->ipv4_lookup_struct =
 713                         l3fwd_lkp.get_ipv4_lookup_struct(socketid);
 714                 qconf->ipv6_lookup_struct =
 715                         l3fwd_lkp.get_ipv6_lookup_struct(socketid);
 716         }
 717         return 0;
 718 }
 719
 720 /* Check the link status of all ports in up to 9s, and print them finally */
 721 static void
 722 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
 723 {
 724 #define CHECK_INTERVAL 100 /* 100ms */
 725 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 726         uint16_t portid;
 727         uint8_t count, all_ports_up, print_flag = 0;
 728         struct rte_eth_link link;
 729
 730         printf("\nChecking link status");
 731         fflush(stdout);
 732         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 733                 if (force_quit)
 734                         return;
 735                 all_ports_up = 1;
 736                 for (portid = 0; portid < port_num; portid++) {
 737                         if (force_quit)
 738                                 return;
 739                         if ((port_mask & (1 << portid)) == 0)
 740                                 continue;
 741                         memset(&link, 0, sizeof(link));
 742                         rte_eth_link_get_nowait(portid, &link);
 743                         /* print link status if flag set */
 744                         if (print_flag == 1) {
 745                                 if (link.link_status)
 746                                         printf(
 747                                         "Port%d Link Up. Speed %u Mbps -%s\n",
 748                                                 portid, link.link_speed,
 749                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 750                                         ("full-duplex") : ("half-duplex\n"));
 751                                 else
 752                                         printf("Port %d Link Down\n", portid);
 753                                 continue;
 754                         }
 755                         /* clear all_ports_up flag if any link down */
 756                         if (link.link_status == ETH_LINK_DOWN) {
 757                                 all_ports_up = 0;
 758                                 break;
 759                         }
 760                 }
 761                 /* after finally printing all link status, get out */
 762                 if (print_flag == 1)
 763                         break;
 764
 765                 if (all_ports_up == 0) {
 766                         printf(".");
 767                         fflush(stdout);
 768                         rte_delay_ms(CHECK_INTERVAL);
 769                 }
 770
 771                 /* set the print_flag if all ports up or timeout */
 772                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 773                         print_flag = 1;
 774                         printf("done\n");
 775                 }
 776         }
 777 }
 778
 779 static void
 780 signal_handler(int signum)
 781 {
 782         if (signum == SIGINT || signum == SIGTERM) {
 783                 printf("\n\nSignal %d received, preparing to exit...\n",
 784                                 signum);
 785                 force_quit = true;
 786         }
 787 }
 788
 789 static int
 790 prepare_ptype_parser(uint16_t portid, uint16_t queueid)
 791 {
 792         if (parse_ptype) {
 793                 printf("Port %d: softly parse packet type info\n", portid);
 794                 if (rte_eth_add_rx_callback(portid, queueid,
 795                                             l3fwd_lkp.cb_parse_ptype,
 796                                             NULL))
 797                         return 1;
 798
 799                 printf("Failed to add rx callback: port=%d\n", portid);
 800                 return 0;
 801         }
 802
 803         if (l3fwd_lkp.check_ptype(portid))
 804                 return 1;
 805
 806         printf("port %d cannot parse packet type, please add --%s\n",
 807                portid, CMD_LINE_OPT_PARSE_PTYPE);
 808         return 0;
 809 }
 810
 811 int
 812 main(int argc, char **argv)
 813 {
 814         struct lcore_conf *qconf;
 815         struct rte_eth_dev_info dev_info;
 816         struct rte_eth_txconf *txconf;
 817         int ret;
 818         unsigned nb_ports;
 819         uint16_t queueid, portid;
 820         unsigned lcore_id;
 821         uint32_t n_tx_queue, nb_lcores;
 822         uint8_t nb_rx_queue, queue, socketid;
 823
 824         /* init EAL */
 825         ret = rte_eal_init(argc, argv);
 826         if (ret < 0)
 827                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
 828         argc -= ret;
 829         argv += ret;
 830
 831         force_quit = false;
 832         signal(SIGINT, signal_handler);
 833         signal(SIGTERM, signal_handler);
 834
 835         /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
 836         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 837                 dest_eth_addr[portid] =
 838                         ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
 839                 *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 840         }
 841
 842         /* parse application arguments (after the EAL ones) */
 843         ret = parse_args(argc, argv);
 844         if (ret < 0)
 845                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
 846
 847         if (check_lcore_params() < 0)
 848                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
 849
 850         ret = init_lcore_rx_queues();
 851         if (ret < 0)
 852                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
 853
 854         nb_ports = rte_eth_dev_count();
 855
 856         if (check_port_config(nb_ports) < 0)
 857                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
 858
 859         nb_lcores = rte_lcore_count();
 860
 861         /* Setup function pointers for lookup method. */
 862         setup_l3fwd_lookup_tables();
 863
 864         /* initialize all ports */
 865         for (portid = 0; portid < nb_ports; portid++) {
 866                 /* skip ports that are not enabled */
 867                 if ((enabled_port_mask & (1 << portid)) == 0) {
 868                         printf("\nSkipping disabled port %d\n", portid);
 869                         continue;
 870                 }
 871
 872                 /* init port */
 873                 printf("Initializing port %d ... ", portid );
 874                 fflush(stdout);
 875
 876                 nb_rx_queue = get_port_n_rx_queues(portid);
 877                 n_tx_queue = nb_lcores;
 878                 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
 879                         n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 880                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 881                         nb_rx_queue, (unsigned)n_tx_queue );
 882                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 883                                         (uint16_t)n_tx_queue, &port_conf);
 884                 if (ret < 0)
 885                         rte_exit(EXIT_FAILURE,
 886                                 "Cannot configure device: err=%d, port=%d\n",
 887                                 ret, portid);
 888
 889                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
 890                                                        &nb_txd);
 891                 if (ret < 0)
 892                         rte_exit(EXIT_FAILURE,
 893                                  "Cannot adjust number of descriptors: err=%d, "
 894                                  "port=%d\n", ret, portid);
 895
 896                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 897                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
 898                 printf(", ");
 899                 print_ethaddr("Destination:",
 900                         (const struct ether_addr *)&dest_eth_addr[portid]);
 901                 printf(", ");
 902
 903                 /*
 904                  * prepare src MACs for each port.
 905                  */
 906                 ether_addr_copy(&ports_eth_addr[portid],
 907                         (struct ether_addr *)(val_eth + portid) + 1);
 908
 909                 /* init memory */
 910                 ret = init_mem(NB_MBUF);
 911                 if (ret < 0)
 912                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
 913
 914                 /* init one TX queue per couple (lcore,port) */
 915                 queueid = 0;
 916                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 917                         if (rte_lcore_is_enabled(lcore_id) == 0)
 918                                 continue;
 919
 920                         if (numa_on)
 921                                 socketid =
 922                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 923                         else
 924                                 socketid = 0;
 925
 926                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 927                         fflush(stdout);
 928
 929                         rte_eth_dev_info_get(portid, &dev_info);
 930                         txconf = &dev_info.default_txconf;
 931                         if (port_conf.rxmode.jumbo_frame)
 932                                 txconf->txq_flags = 0;
 933                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
 934                                                      socketid, txconf);
 935                         if (ret < 0)
 936                                 rte_exit(EXIT_FAILURE,
 937                                         "rte_eth_tx_queue_setup: err=%d, "
 938                                         "port=%d\n", ret, portid);
 939
 940                         qconf = &lcore_conf[lcore_id];
 941                         qconf->tx_queue_id[portid] = queueid;
 942                         queueid++;
 943
 944                         qconf->tx_port_id[qconf->n_tx_port] = portid;
 945                         qconf->n_tx_port++;
 946                 }
 947                 printf("\n");
 948         }
 949
 950         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 951                 if (rte_lcore_is_enabled(lcore_id) == 0)
 952                         continue;
 953                 qconf = &lcore_conf[lcore_id];
 954                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
 955                 fflush(stdout);
 956                 /* init RX queues */
 957                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
 958                         portid = qconf->rx_queue_list[queue].port_id;
 959                         queueid = qconf->rx_queue_list[queue].queue_id;
 960
 961                         if (numa_on)
 962                                 socketid =
 963                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 964                         else
 965                                 socketid = 0;
 966
 967                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 968                         fflush(stdout);
 969
 970                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
 971                                         socketid,
 972                                         NULL,
 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         for (portid = 0; portid < nb_ports; 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(nb_ports, 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         for (portid = 0; portid < nb_ports; 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 }