examples/l3fwd/main.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <stdint.h>
  37 #include <inttypes.h>
  38 #include <sys/types.h>
  39 #include <string.h>
  40 #include <sys/queue.h>
  41 #include <stdarg.h>
  42 #include <errno.h>
  43 #include <getopt.h>
  44 #include <signal.h>
  45 #include <stdbool.h>
  46
  47 #include <rte_common.h>
  48 #include <rte_vect.h>
  49 #include <rte_byteorder.h>
  50 #include <rte_log.h>
  51 #include <rte_memory.h>
  52 #include <rte_memcpy.h>
  53 #include <rte_memzone.h>
  54 #include <rte_eal.h>
  55 #include <rte_per_lcore.h>
  56 #include <rte_launch.h>
  57 #include <rte_atomic.h>
  58 #include <rte_cycles.h>
  59 #include <rte_prefetch.h>
  60 #include <rte_lcore.h>
  61 #include <rte_per_lcore.h>
  62 #include <rte_branch_prediction.h>
  63 #include <rte_interrupts.h>
  64 #include <rte_pci.h>
  65 #include <rte_random.h>
  66 #include <rte_debug.h>
  67 #include <rte_ether.h>
  68 #include <rte_ethdev.h>
  69 #include <rte_ring.h>
  70 #include <rte_mempool.h>
  71 #include <rte_mbuf.h>
  72 #include <rte_ip.h>
  73 #include <rte_tcp.h>
  74 #include <rte_udp.h>
  75 #include <rte_string_fns.h>
  76 #include <rte_cpuflags.h>
  77
  78 #include <cmdline_parse.h>
  79 #include <cmdline_parse_etheraddr.h>
  80
  81 #include "l3fwd.h"
  82
  83 /*
  84  * Configurable number of RX/TX ring descriptors
  85  */
  86 #define RTE_TEST_RX_DESC_DEFAULT 128
  87 #define RTE_TEST_TX_DESC_DEFAULT 512
  88
  89 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
  90 #define MAX_RX_QUEUE_PER_PORT 128
  91
  92 #define MAX_LCORE_PARAMS 1024
  93
  94 /* Static global variables used within this file. */
  95 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  96 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  97
  98 /**< Ports set in promiscuous mode off by default. */
  99 static int promiscuous_on;
 100
 101 /* Select Longest-Prefix or Exact match. */
 102 static int l3fwd_lpm_on;
 103 static int l3fwd_em_on;
 104
 105 static int numa_on = 1; /**< NUMA is enabled by default. */
 106
 107 /* Global variables. */
 108
 109 volatile bool force_quit;
 110
 111 /* ethernet addresses of ports */
 112 uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
 113 struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
 114
 115 xmm_t val_eth[RTE_MAX_ETHPORTS];
 116
 117 /* mask of enabled ports */
 118 uint32_t enabled_port_mask;
 119
 120 /* Used only in exact match mode. */
 121 int ipv6; /**< ipv6 is false by default. */
 122 uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 123
 124 struct lcore_conf lcore_conf[RTE_MAX_LCORE];
 125
 126 struct lcore_params {
 127         uint8_t port_id;
 128         uint8_t queue_id;
 129         uint8_t lcore_id;
 130 } __rte_cache_aligned;
 131
 132 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 133 static struct lcore_params lcore_params_array_default[] = {
 134         {0, 0, 2},
 135         {0, 1, 2},
 136         {0, 2, 2},
 137         {1, 0, 2},
 138         {1, 1, 2},
 139         {1, 2, 2},
 140         {2, 0, 2},
 141         {3, 0, 3},
 142         {3, 1, 3},
 143 };
 144
 145 static struct lcore_params * lcore_params = lcore_params_array_default;
 146 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
 147                                 sizeof(lcore_params_array_default[0]);
 148
 149 static struct rte_eth_conf port_conf = {
 150         .rxmode = {
 151                 .mq_mode = ETH_MQ_RX_RSS,
 152                 .max_rx_pkt_len = ETHER_MAX_LEN,
 153                 .split_hdr_size = 0,
 154                 .header_split   = 0, /**< Header Split disabled */
 155                 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
 156                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 157                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 158                 .hw_strip_crc   = 0, /**< CRC stripped by hardware */
 159         },
 160         .rx_adv_conf = {
 161                 .rss_conf = {
 162                         .rss_key = NULL,
 163                         .rss_hf = ETH_RSS_IP,
 164                 },
 165         },
 166         .txmode = {
 167                 .mq_mode = ETH_MQ_TX_NONE,
 168         },
 169 };
 170
 171 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 172
 173 struct l3fwd_lkp_mode {
 174         void  (*setup)(int);
 175         int   (*main_loop)(void *);
 176         void* (*get_ipv4_lookup_struct)(int);
 177         void* (*get_ipv6_lookup_struct)(int);
 178 };
 179
 180 static struct l3fwd_lkp_mode l3fwd_lkp;
 181
 182 static struct l3fwd_lkp_mode l3fwd_em_lkp = {
 183         .setup                  = setup_hash,
 184         .main_loop              = em_main_loop,
 185         .get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
 186         .get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
 187 };
 188
 189 static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
 190         .setup                  = setup_lpm,
 191         .main_loop              = lpm_main_loop,
 192         .get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
 193         .get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
 194 };
 195
 196 /*
 197  * Setup lookup methods for forwarding.
 198  * Currently exact-match and longest-prefix-match
 199  * are supported ones.
 200  */
 201 static void
 202 setup_l3fwd_lookup_tables(void)
 203 {
 204         /* Setup HASH lookup functions. */
 205         if (l3fwd_em_on)
 206                 l3fwd_lkp = l3fwd_em_lkp;
 207         /* Setup LPM lookup functions. */
 208         else
 209                 l3fwd_lkp = l3fwd_lpm_lkp;
 210 }
 211
 212 static int
 213 check_lcore_params(void)
 214 {
 215         uint8_t queue, lcore;
 216         uint16_t i;
 217         int socketid;
 218
 219         for (i = 0; i < nb_lcore_params; ++i) {
 220                 queue = lcore_params[i].queue_id;
 221                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
 222                         printf("invalid queue number: %hhu\n", queue);
 223                         return -1;
 224                 }
 225                 lcore = lcore_params[i].lcore_id;
 226                 if (!rte_lcore_is_enabled(lcore)) {
 227                         printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
 228                         return -1;
 229                 }
 230                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
 231                         (numa_on == 0)) {
 232                         printf("warning: lcore %hhu is on socket %d with numa off \n",
 233                                 lcore, socketid);
 234                 }
 235         }
 236         return 0;
 237 }
 238
 239 static int
 240 check_port_config(const unsigned nb_ports)
 241 {
 242         unsigned portid;
 243         uint16_t i;
 244
 245         for (i = 0; i < nb_lcore_params; ++i) {
 246                 portid = lcore_params[i].port_id;
 247                 if ((enabled_port_mask & (1 << portid)) == 0) {
 248                         printf("port %u is not enabled in port mask\n", portid);
 249                         return -1;
 250                 }
 251                 if (portid >= nb_ports) {
 252                         printf("port %u is not present on the board\n", portid);
 253                         return -1;
 254                 }
 255         }
 256         return 0;
 257 }
 258
 259 static uint8_t
 260 get_port_n_rx_queues(const uint8_t port)
 261 {
 262         int queue = -1;
 263         uint16_t i;
 264
 265         for (i = 0; i < nb_lcore_params; ++i) {
 266                 if (lcore_params[i].port_id == port) {
 267                         if (lcore_params[i].queue_id == queue+1)
 268                                 queue = lcore_params[i].queue_id;
 269                         else
 270                                 rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
 271                                                 " in sequence and must start with 0\n",
 272                                                 lcore_params[i].port_id);
 273                 }
 274         }
 275         return (uint8_t)(++queue);
 276 }
 277
 278 static int
 279 init_lcore_rx_queues(void)
 280 {
 281         uint16_t i, nb_rx_queue;
 282         uint8_t lcore;
 283
 284         for (i = 0; i < nb_lcore_params; ++i) {
 285                 lcore = lcore_params[i].lcore_id;
 286                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
 287                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
 288                         printf("error: too many queues (%u) for lcore: %u\n",
 289                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
 290                         return -1;
 291                 } else {
 292                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
 293                                 lcore_params[i].port_id;
 294                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
 295                                 lcore_params[i].queue_id;
 296                         lcore_conf[lcore].n_rx_queue++;
 297                 }
 298         }
 299         return 0;
 300 }
 301
 302 /* display usage */
 303 static void
 304 print_usage(const char *prgname)
 305 {
 306         printf ("%s [EAL options] -- -p PORTMASK -P"
 307                 "  [--config (port,queue,lcore)[,(port,queue,lcore]]"
 308                 "  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
 309                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 310                 "  -P : enable promiscuous mode\n"
 311                 "  -E : enable exact match\n"
 312                 "  -L : enable longest prefix match\n"
 313                 "  --config (port,queue,lcore): rx queues configuration\n"
 314                 "  --eth-dest=X,MM:MM:MM:MM:MM:MM: optional, ethernet destination for port X\n"
 315                 "  --no-numa: optional, disable numa awareness\n"
 316                 "  --ipv6: optional, specify it if running ipv6 packets\n"
 317                 "  --enable-jumbo: enable jumbo frame"
 318                 " which max packet len is PKTLEN in decimal (64-9600)\n"
 319                 "  --hash-entry-num: specify the hash entry number in hexadecimal to be setup\n",
 320                 prgname);
 321 }
 322
 323 static int
 324 parse_max_pkt_len(const char *pktlen)
 325 {
 326         char *end = NULL;
 327         unsigned long len;
 328
 329         /* parse decimal string */
 330         len = strtoul(pktlen, &end, 10);
 331         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
 332                 return -1;
 333
 334         if (len == 0)
 335                 return -1;
 336
 337         return len;
 338 }
 339
 340 static int
 341 parse_portmask(const char *portmask)
 342 {
 343         char *end = NULL;
 344         unsigned long pm;
 345
 346         /* parse hexadecimal string */
 347         pm = strtoul(portmask, &end, 16);
 348         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 349                 return -1;
 350
 351         if (pm == 0)
 352                 return -1;
 353
 354         return pm;
 355 }
 356
 357 static int
 358 parse_hash_entry_number(const char *hash_entry_num)
 359 {
 360         char *end = NULL;
 361         unsigned long hash_en;
 362         /* parse hexadecimal string */
 363         hash_en = strtoul(hash_entry_num, &end, 16);
 364         if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
 365                 return -1;
 366
 367         if (hash_en == 0)
 368                 return -1;
 369
 370         return hash_en;
 371 }
 372
 373 static int
 374 parse_config(const char *q_arg)
 375 {
 376         char s[256];
 377         const char *p, *p0 = q_arg;
 378         char *end;
 379         enum fieldnames {
 380                 FLD_PORT = 0,
 381                 FLD_QUEUE,
 382                 FLD_LCORE,
 383                 _NUM_FLD
 384         };
 385         unsigned long int_fld[_NUM_FLD];
 386         char *str_fld[_NUM_FLD];
 387         int i;
 388         unsigned size;
 389
 390         nb_lcore_params = 0;
 391
 392         while ((p = strchr(p0,'(')) != NULL) {
 393                 ++p;
 394                 if((p0 = strchr(p,')')) == NULL)
 395                         return -1;
 396
 397                 size = p0 - p;
 398                 if(size >= sizeof(s))
 399                         return -1;
 400
 401                 snprintf(s, sizeof(s), "%.*s", size, p);
 402                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
 403                         return -1;
 404                 for (i = 0; i < _NUM_FLD; i++){
 405                         errno = 0;
 406                         int_fld[i] = strtoul(str_fld[i], &end, 0);
 407                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
 408                                 return -1;
 409                 }
 410                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
 411                         printf("exceeded max number of lcore params: %hu\n",
 412                                 nb_lcore_params);
 413                         return -1;
 414                 }
 415                 lcore_params_array[nb_lcore_params].port_id =
 416                         (uint8_t)int_fld[FLD_PORT];
 417                 lcore_params_array[nb_lcore_params].queue_id =
 418                         (uint8_t)int_fld[FLD_QUEUE];
 419                 lcore_params_array[nb_lcore_params].lcore_id =
 420                         (uint8_t)int_fld[FLD_LCORE];
 421                 ++nb_lcore_params;
 422         }
 423         lcore_params = lcore_params_array;
 424         return 0;
 425 }
 426
 427 static void
 428 parse_eth_dest(const char *optarg)
 429 {
 430         uint8_t portid;
 431         char *port_end;
 432         uint8_t c, *dest, peer_addr[6];
 433
 434         errno = 0;
 435         portid = strtoul(optarg, &port_end, 10);
 436         if (errno != 0 || port_end == optarg || *port_end++ != ',')
 437                 rte_exit(EXIT_FAILURE,
 438                 "Invalid eth-dest: %s", optarg);
 439         if (portid >= RTE_MAX_ETHPORTS)
 440                 rte_exit(EXIT_FAILURE,
 441                 "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
 442                 portid, RTE_MAX_ETHPORTS);
 443
 444         if (cmdline_parse_etheraddr(NULL, port_end,
 445                 &peer_addr, sizeof(peer_addr)) < 0)
 446                 rte_exit(EXIT_FAILURE,
 447                 "Invalid ethernet address: %s\n",
 448                 port_end);
 449         dest = (uint8_t *)&dest_eth_addr[portid];
 450         for (c = 0; c < 6; c++)
 451                 dest[c] = peer_addr[c];
 452         *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 453 }
 454
 455 #define MAX_JUMBO_PKT_LEN  9600
 456 #define MEMPOOL_CACHE_SIZE 256
 457
 458 #define CMD_LINE_OPT_CONFIG "config"
 459 #define CMD_LINE_OPT_ETH_DEST "eth-dest"
 460 #define CMD_LINE_OPT_NO_NUMA "no-numa"
 461 #define CMD_LINE_OPT_IPV6 "ipv6"
 462 #define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
 463 #define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
 464
 465 /*
 466  * This expression is used to calculate the number of mbufs needed
 467  * depending on user input, taking  into account memory for rx and
 468  * tx hardware rings, cache per lcore and mtable per port per lcore.
 469  * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
 470  * value of 8192
 471  */
 472 #define NB_MBUF RTE_MAX(        \
 473         (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT +        \
 474         nb_ports*nb_lcores*MAX_PKT_BURST +                      \
 475         nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT +          \
 476         nb_lcores*MEMPOOL_CACHE_SIZE),                          \
 477         (unsigned)8192)
 478
 479 /* Parse the argument given in the command line of the application */
 480 static int
 481 parse_args(int argc, char **argv)
 482 {
 483         int opt, ret;
 484         char **argvopt;
 485         int option_index;
 486         char *prgname = argv[0];
 487         static struct option lgopts[] = {
 488                 {CMD_LINE_OPT_CONFIG, 1, 0, 0},
 489                 {CMD_LINE_OPT_ETH_DEST, 1, 0, 0},
 490                 {CMD_LINE_OPT_NO_NUMA, 0, 0, 0},
 491                 {CMD_LINE_OPT_IPV6, 0, 0, 0},
 492                 {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
 493                 {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
 494                 {NULL, 0, 0, 0}
 495         };
 496
 497         argvopt = argv;
 498
 499         /* Error or normal output strings. */
 500         const char *str1 = "L3FWD: Invalid portmask";
 501         const char *str2 = "L3FWD: Promiscuous mode selected";
 502         const char *str3 = "L3FWD: Exact match selected";
 503         const char *str4 = "L3FWD: Longest-prefix match selected";
 504         const char *str5 = "L3FWD: Invalid config";
 505         const char *str6 = "L3FWD: NUMA is disabled";
 506         const char *str7 = "L3FWD: IPV6 is specified";
 507         const char *str8 =
 508                 "L3FWD: Jumbo frame is enabled - disabling simple TX path";
 509         const char *str9 = "L3FWD: Invalid packet length";
 510         const char *str10 = "L3FWD: Set jumbo frame max packet len to ";
 511         const char *str11 = "L3FWD: Invalid hash entry number";
 512         const char *str12 =
 513                 "L3FWD: LPM and EM are mutually exclusive, select only one";
 514         const char *str13 = "L3FWD: LPM or EM none selected, default LPM on";
 515
 516         while ((opt = getopt_long(argc, argvopt, "p:PLE",
 517                                 lgopts, &option_index)) != EOF) {
 518
 519                 switch (opt) {
 520                 /* portmask */
 521                 case 'p':
 522                         enabled_port_mask = parse_portmask(optarg);
 523                         if (enabled_port_mask == 0) {
 524                                 printf("%s\n", str1);
 525                                 print_usage(prgname);
 526                                 return -1;
 527                         }
 528                         break;
 529                 case 'P':
 530                         printf("%s\n", str2);
 531                         promiscuous_on = 1;
 532                         break;
 533
 534                 case 'E':
 535                         printf("%s\n", str3);
 536                         l3fwd_em_on = 1;
 537                         break;
 538
 539                 case 'L':
 540                         printf("%s\n", str4);
 541                         l3fwd_lpm_on = 1;
 542                         break;
 543
 544                 /* long options */
 545                 case 0:
 546                         if (!strncmp(lgopts[option_index].name,
 547                                         CMD_LINE_OPT_CONFIG,
 548                                         sizeof(CMD_LINE_OPT_CONFIG))) {
 549
 550                                 ret = parse_config(optarg);
 551                                 if (ret) {
 552                                         printf("%s\n", str5);
 553                                         print_usage(prgname);
 554                                         return -1;
 555                                 }
 556                         }
 557
 558                         if (!strncmp(lgopts[option_index].name,
 559                                         CMD_LINE_OPT_ETH_DEST,
 560                                         sizeof(CMD_LINE_OPT_ETH_DEST))) {
 561                                         parse_eth_dest(optarg);
 562                         }
 563
 564                         if (!strncmp(lgopts[option_index].name,
 565                                         CMD_LINE_OPT_NO_NUMA,
 566                                         sizeof(CMD_LINE_OPT_NO_NUMA))) {
 567                                 printf("%s\n", str6);
 568                                 numa_on = 0;
 569                         }
 570
 571                         if (!strncmp(lgopts[option_index].name,
 572                                 CMD_LINE_OPT_IPV6,
 573                                 sizeof(CMD_LINE_OPT_IPV6))) {
 574                                 printf("%sn", str7);
 575                                 ipv6 = 1;
 576                         }
 577
 578                         if (!strncmp(lgopts[option_index].name,
 579                                         CMD_LINE_OPT_ENABLE_JUMBO,
 580                                         sizeof(CMD_LINE_OPT_ENABLE_JUMBO))) {
 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 (0 == getopt_long(argc, argvopt, "",
 593                                                 &lenopts, &option_index)) {
 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                         }
 606
 607                         if (!strncmp(lgopts[option_index].name,
 608                                 CMD_LINE_OPT_HASH_ENTRY_NUM,
 609                                 sizeof(CMD_LINE_OPT_HASH_ENTRY_NUM))) {
 610
 611                                 ret = parse_hash_entry_number(optarg);
 612                                 if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
 613                                         hash_entry_number = ret;
 614                                 } else {
 615                                         printf("%s\n", str11);
 616                                         print_usage(prgname);
 617                                         return -1;
 618                                 }
 619                         }
 620                         break;
 621
 622                 default:
 623                         print_usage(prgname);
 624                         return -1;
 625                 }
 626         }
 627
 628         /* If both LPM and EM are selected, return error. */
 629         if (l3fwd_lpm_on && l3fwd_em_on) {
 630                 printf("%s\n", str12);
 631                 return -1;
 632         }
 633
 634         /*
 635          * Nothing is selected, pick longest-prefix match
 636          * as default match.
 637          */
 638         if (!l3fwd_lpm_on && !l3fwd_em_on) {
 639                 l3fwd_lpm_on = 1;
 640                 printf("%s\n", str13);
 641         }
 642
 643         /*
 644          * ipv6 and hash flags are valid only for
 645          * exact macth, reset them to default for
 646          * longest-prefix match.
 647          */
 648         if (l3fwd_lpm_on) {
 649                 ipv6 = 0;
 650                 hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 651         }
 652
 653         if (optind >= 0)
 654                 argv[optind-1] = prgname;
 655
 656         ret = optind-1;
 657         optind = 0; /* reset getopt lib */
 658         return ret;
 659 }
 660
 661 static void
 662 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
 663 {
 664         char buf[ETHER_ADDR_FMT_SIZE];
 665         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
 666         printf("%s%s", name, buf);
 667 }
 668
 669 static int
 670 init_mem(unsigned nb_mbuf)
 671 {
 672         struct lcore_conf *qconf;
 673         int socketid;
 674         unsigned lcore_id;
 675         char s[64];
 676
 677         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 678                 if (rte_lcore_is_enabled(lcore_id) == 0)
 679                         continue;
 680
 681                 if (numa_on)
 682                         socketid = rte_lcore_to_socket_id(lcore_id);
 683                 else
 684                         socketid = 0;
 685
 686                 if (socketid >= NB_SOCKETS) {
 687                         rte_exit(EXIT_FAILURE,
 688                                 "Socket %d of lcore %u is out of range %d\n",
 689                                 socketid, lcore_id, NB_SOCKETS);
 690                 }
 691
 692                 if (pktmbuf_pool[socketid] == NULL) {
 693                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 694                         pktmbuf_pool[socketid] =
 695                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 696                                         MEMPOOL_CACHE_SIZE, 0,
 697                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 698                         if (pktmbuf_pool[socketid] == NULL)
 699                                 rte_exit(EXIT_FAILURE,
 700                                         "Cannot init mbuf pool on socket %d\n",
 701                                         socketid);
 702                         else
 703                                 printf("Allocated mbuf pool on socket %d\n",
 704                                         socketid);
 705
 706                         /* Setup either LPM or EM(f.e Hash).  */
 707                         l3fwd_lkp.setup(socketid);
 708                 }
 709                 qconf = &lcore_conf[lcore_id];
 710                 qconf->ipv4_lookup_struct =
 711                         l3fwd_lkp.get_ipv4_lookup_struct(socketid);
 712                 qconf->ipv6_lookup_struct =
 713                         l3fwd_lkp.get_ipv6_lookup_struct(socketid);
 714         }
 715         return 0;
 716 }
 717
 718 /* Check the link status of all ports in up to 9s, and print them finally */
 719 static void
 720 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 721 {
 722 #define CHECK_INTERVAL 100 /* 100ms */
 723 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 724         uint8_t portid, count, all_ports_up, print_flag = 0;
 725         struct rte_eth_link link;
 726
 727         printf("\nChecking link status");
 728         fflush(stdout);
 729         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 730                 if (force_quit)
 731                         return;
 732                 all_ports_up = 1;
 733                 for (portid = 0; portid < port_num; portid++) {
 734                         if (force_quit)
 735                                 return;
 736                         if ((port_mask & (1 << portid)) == 0)
 737                                 continue;
 738                         memset(&link, 0, sizeof(link));
 739                         rte_eth_link_get_nowait(portid, &link);
 740                         /* print link status if flag set */
 741                         if (print_flag == 1) {
 742                                 if (link.link_status)
 743                                         printf("Port %d Link Up - speed %u "
 744                                                 "Mbps - %s\n", (uint8_t)portid,
 745                                                 (unsigned)link.link_speed,
 746                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 747                                         ("full-duplex") : ("half-duplex\n"));
 748                                 else
 749                                         printf("Port %d Link Down\n",
 750                                                 (uint8_t)portid);
 751                                 continue;
 752                         }
 753                         /* clear all_ports_up flag if any link down */
 754                         if (link.link_status == 0) {
 755                                 all_ports_up = 0;
 756                                 break;
 757                         }
 758                 }
 759                 /* after finally printing all link status, get out */
 760                 if (print_flag == 1)
 761                         break;
 762
 763                 if (all_ports_up == 0) {
 764                         printf(".");
 765                         fflush(stdout);
 766                         rte_delay_ms(CHECK_INTERVAL);
 767                 }
 768
 769                 /* set the print_flag if all ports up or timeout */
 770                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 771                         print_flag = 1;
 772                         printf("done\n");
 773                 }
 774         }
 775 }
 776
 777 static void
 778 signal_handler(int signum)
 779 {
 780         if (signum == SIGINT || signum == SIGTERM) {
 781                 printf("\n\nSignal %d received, preparing to exit...\n",
 782                                 signum);
 783                 force_quit = true;
 784         }
 785 }
 786
 787 int
 788 main(int argc, char **argv)
 789 {
 790         struct lcore_conf *qconf;
 791         struct rte_eth_dev_info dev_info;
 792         struct rte_eth_txconf *txconf;
 793         int ret;
 794         unsigned nb_ports;
 795         uint16_t queueid;
 796         unsigned lcore_id;
 797         uint32_t n_tx_queue, nb_lcores;
 798         uint8_t portid, nb_rx_queue, queue, socketid;
 799         uint8_t nb_tx_port;
 800
 801         /* init EAL */
 802         ret = rte_eal_init(argc, argv);
 803         if (ret < 0)
 804                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
 805         argc -= ret;
 806         argv += ret;
 807
 808         force_quit = false;
 809         signal(SIGINT, signal_handler);
 810         signal(SIGTERM, signal_handler);
 811
 812         /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
 813         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 814                 dest_eth_addr[portid] =
 815                         ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
 816                 *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 817         }
 818
 819         /* parse application arguments (after the EAL ones) */
 820         ret = parse_args(argc, argv);
 821         if (ret < 0)
 822                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
 823
 824         if (check_lcore_params() < 0)
 825                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
 826
 827         ret = init_lcore_rx_queues();
 828         if (ret < 0)
 829                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
 830
 831         nb_ports = rte_eth_dev_count();
 832         if (nb_ports > RTE_MAX_ETHPORTS)
 833                 nb_ports = RTE_MAX_ETHPORTS;
 834
 835         if (check_port_config(nb_ports) < 0)
 836                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
 837
 838         nb_lcores = rte_lcore_count();
 839         nb_tx_port = 0;
 840
 841         /* Setup function pointers for lookup method. */
 842         setup_l3fwd_lookup_tables();
 843
 844         /* initialize all ports */
 845         for (portid = 0; portid < nb_ports; portid++) {
 846                 /* skip ports that are not enabled */
 847                 if ((enabled_port_mask & (1 << portid)) == 0) {
 848                         printf("\nSkipping disabled port %d\n", portid);
 849                         continue;
 850                 }
 851
 852                 /* init port */
 853                 printf("Initializing port %d ... ", portid );
 854                 fflush(stdout);
 855
 856                 nb_rx_queue = get_port_n_rx_queues(portid);
 857                 n_tx_queue = nb_lcores;
 858                 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
 859                         n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 860                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 861                         nb_rx_queue, (unsigned)n_tx_queue );
 862                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 863                                         (uint16_t)n_tx_queue, &port_conf);
 864                 if (ret < 0)
 865                         rte_exit(EXIT_FAILURE,
 866                                 "Cannot configure device: err=%d, port=%d\n",
 867                                 ret, portid);
 868
 869                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 870                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
 871                 printf(", ");
 872                 print_ethaddr("Destination:",
 873                         (const struct ether_addr *)&dest_eth_addr[portid]);
 874                 printf(", ");
 875
 876                 /*
 877                  * prepare src MACs for each port.
 878                  */
 879                 ether_addr_copy(&ports_eth_addr[portid],
 880                         (struct ether_addr *)(val_eth + portid) + 1);
 881
 882                 /* init memory */
 883                 ret = init_mem(NB_MBUF);
 884                 if (ret < 0)
 885                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
 886
 887                 /* init one TX queue per couple (lcore,port) */
 888                 queueid = 0;
 889                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 890                         if (rte_lcore_is_enabled(lcore_id) == 0)
 891                                 continue;
 892
 893                         if (numa_on)
 894                                 socketid =
 895                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 896                         else
 897                                 socketid = 0;
 898
 899                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 900                         fflush(stdout);
 901
 902                         rte_eth_dev_info_get(portid, &dev_info);
 903                         txconf = &dev_info.default_txconf;
 904                         if (port_conf.rxmode.jumbo_frame)
 905                                 txconf->txq_flags = 0;
 906                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
 907                                                      socketid, txconf);
 908                         if (ret < 0)
 909                                 rte_exit(EXIT_FAILURE,
 910                                         "rte_eth_tx_queue_setup: err=%d, "
 911                                         "port=%d\n", ret, portid);
 912
 913                         qconf = &lcore_conf[lcore_id];
 914                         qconf->tx_queue_id[portid] = queueid;
 915                         queueid++;
 916
 917                         qconf->n_tx_port = nb_tx_port;
 918                         qconf->tx_port_id[qconf->n_tx_port] = portid;
 919                 }
 920                 printf("\n");
 921
 922                 nb_tx_port++;
 923         }
 924
 925         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 926                 if (rte_lcore_is_enabled(lcore_id) == 0)
 927                         continue;
 928                 qconf = &lcore_conf[lcore_id];
 929                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
 930                 fflush(stdout);
 931                 /* init RX queues */
 932                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
 933                         portid = qconf->rx_queue_list[queue].port_id;
 934                         queueid = qconf->rx_queue_list[queue].queue_id;
 935
 936                         if (numa_on)
 937                                 socketid =
 938                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 939                         else
 940                                 socketid = 0;
 941
 942                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 943                         fflush(stdout);
 944
 945                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
 946                                         socketid,
 947                                         NULL,
 948                                         pktmbuf_pool[socketid]);
 949                         if (ret < 0)
 950                                 rte_exit(EXIT_FAILURE,
 951                                 "rte_eth_rx_queue_setup: err=%d, port=%d\n",
 952                                 ret, portid);
 953                 }
 954         }
 955
 956         printf("\n");
 957
 958         /* start ports */
 959         for (portid = 0; portid < nb_ports; portid++) {
 960                 if ((enabled_port_mask & (1 << portid)) == 0) {
 961                         continue;
 962                 }
 963                 /* Start device */
 964                 ret = rte_eth_dev_start(portid);
 965                 if (ret < 0)
 966                         rte_exit(EXIT_FAILURE,
 967                                 "rte_eth_dev_start: err=%d, port=%d\n",
 968                                 ret, portid);
 969
 970                 /*
 971                  * If enabled, put device in promiscuous mode.
 972                  * This allows IO forwarding mode to forward packets
 973                  * to itself through 2 cross-connected  ports of the
 974                  * target machine.
 975                  */
 976                 if (promiscuous_on)
 977                         rte_eth_promiscuous_enable(portid);
 978         }
 979
 980         check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
 981
 982         ret = 0;
 983         /* launch per-lcore init on every lcore */
 984         rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MASTER);
 985         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 986                 if (rte_eal_wait_lcore(lcore_id) < 0) {
 987                         ret = -1;
 988                         break;
 989                 }
 990         }
 991
 992         /* stop ports */
 993         for (portid = 0; portid < nb_ports; portid++) {
 994                 if ((enabled_port_mask & (1 << portid)) == 0)
 995                         continue;
 996                 printf("Closing port %d...", portid);
 997                 rte_eth_dev_stop(portid);
 998                 rte_eth_dev_close(portid);
 999                 printf(" Done\n");
1000         }
1001         printf("Bye...\n");
1002
1003         return ret;
1004 }