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