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                         lcore_params[i].queue_id > queue)
 268                         queue = lcore_params[i].queue_id;
 269         }
 270         return (uint8_t)(++queue);
 271 }
 272
 273 static int
 274 init_lcore_rx_queues(void)
 275 {
 276         uint16_t i, nb_rx_queue;
 277         uint8_t lcore;
 278
 279         for (i = 0; i < nb_lcore_params; ++i) {
 280                 lcore = lcore_params[i].lcore_id;
 281                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
 282                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
 283                         printf("error: too many queues (%u) for lcore: %u\n",
 284                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
 285                         return -1;
 286                 } else {
 287                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
 288                                 lcore_params[i].port_id;
 289                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
 290                                 lcore_params[i].queue_id;
 291                         lcore_conf[lcore].n_rx_queue++;
 292                 }
 293         }
 294         return 0;
 295 }
 296
 297 /* display usage */
 298 static void
 299 print_usage(const char *prgname)
 300 {
 301         printf ("%s [EAL options] -- -p PORTMASK -P"
 302                 "  [--config (port,queue,lcore)[,(port,queue,lcore]]"
 303                 "  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
 304                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 305                 "  -P : enable promiscuous mode\n"
 306                 "  -E : enable exact match\n"
 307                 "  -L : enable longest prefix match\n"
 308                 "  --config (port,queue,lcore): rx queues configuration\n"
 309                 "  --eth-dest=X,MM:MM:MM:MM:MM:MM: optional, ethernet destination for port X\n"
 310                 "  --no-numa: optional, disable numa awareness\n"
 311                 "  --ipv6: optional, specify it if running ipv6 packets\n"
 312                 "  --enable-jumbo: enable jumbo frame"
 313                 " which max packet len is PKTLEN in decimal (64-9600)\n"
 314                 "  --hash-entry-num: specify the hash entry number in hexadecimal to be setup\n",
 315                 prgname);
 316 }
 317
 318 static int
 319 parse_max_pkt_len(const char *pktlen)
 320 {
 321         char *end = NULL;
 322         unsigned long len;
 323
 324         /* parse decimal string */
 325         len = strtoul(pktlen, &end, 10);
 326         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
 327                 return -1;
 328
 329         if (len == 0)
 330                 return -1;
 331
 332         return len;
 333 }
 334
 335 static int
 336 parse_portmask(const char *portmask)
 337 {
 338         char *end = NULL;
 339         unsigned long pm;
 340
 341         /* parse hexadecimal string */
 342         pm = strtoul(portmask, &end, 16);
 343         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 344                 return -1;
 345
 346         if (pm == 0)
 347                 return -1;
 348
 349         return pm;
 350 }
 351
 352 static int
 353 parse_hash_entry_number(const char *hash_entry_num)
 354 {
 355         char *end = NULL;
 356         unsigned long hash_en;
 357         /* parse hexadecimal string */
 358         hash_en = strtoul(hash_entry_num, &end, 16);
 359         if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
 360                 return -1;
 361
 362         if (hash_en == 0)
 363                 return -1;
 364
 365         return hash_en;
 366 }
 367
 368 static int
 369 parse_config(const char *q_arg)
 370 {
 371         char s[256];
 372         const char *p, *p0 = q_arg;
 373         char *end;
 374         enum fieldnames {
 375                 FLD_PORT = 0,
 376                 FLD_QUEUE,
 377                 FLD_LCORE,
 378                 _NUM_FLD
 379         };
 380         unsigned long int_fld[_NUM_FLD];
 381         char *str_fld[_NUM_FLD];
 382         int i;
 383         unsigned size;
 384
 385         nb_lcore_params = 0;
 386
 387         while ((p = strchr(p0,'(')) != NULL) {
 388                 ++p;
 389                 if((p0 = strchr(p,')')) == NULL)
 390                         return -1;
 391
 392                 size = p0 - p;
 393                 if(size >= sizeof(s))
 394                         return -1;
 395
 396                 snprintf(s, sizeof(s), "%.*s", size, p);
 397                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
 398                         return -1;
 399                 for (i = 0; i < _NUM_FLD; i++){
 400                         errno = 0;
 401                         int_fld[i] = strtoul(str_fld[i], &end, 0);
 402                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
 403                                 return -1;
 404                 }
 405                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
 406                         printf("exceeded max number of lcore params: %hu\n",
 407                                 nb_lcore_params);
 408                         return -1;
 409                 }
 410                 lcore_params_array[nb_lcore_params].port_id =
 411                         (uint8_t)int_fld[FLD_PORT];
 412                 lcore_params_array[nb_lcore_params].queue_id =
 413                         (uint8_t)int_fld[FLD_QUEUE];
 414                 lcore_params_array[nb_lcore_params].lcore_id =
 415                         (uint8_t)int_fld[FLD_LCORE];
 416                 ++nb_lcore_params;
 417         }
 418         lcore_params = lcore_params_array;
 419         return 0;
 420 }
 421
 422 static void
 423 parse_eth_dest(const char *optarg)
 424 {
 425         uint8_t portid;
 426         char *port_end;
 427         uint8_t c, *dest, peer_addr[6];
 428
 429         errno = 0;
 430         portid = strtoul(optarg, &port_end, 10);
 431         if (errno != 0 || port_end == optarg || *port_end++ != ',')
 432                 rte_exit(EXIT_FAILURE,
 433                 "Invalid eth-dest: %s", optarg);
 434         if (portid >= RTE_MAX_ETHPORTS)
 435                 rte_exit(EXIT_FAILURE,
 436                 "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
 437                 portid, RTE_MAX_ETHPORTS);
 438
 439         if (cmdline_parse_etheraddr(NULL, port_end,
 440                 &peer_addr, sizeof(peer_addr)) < 0)
 441                 rte_exit(EXIT_FAILURE,
 442                 "Invalid ethernet address: %s\n",
 443                 port_end);
 444         dest = (uint8_t *)&dest_eth_addr[portid];
 445         for (c = 0; c < 6; c++)
 446                 dest[c] = peer_addr[c];
 447         *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 448 }
 449
 450 #define MAX_JUMBO_PKT_LEN  9600
 451 #define MEMPOOL_CACHE_SIZE 256
 452
 453 #define CMD_LINE_OPT_CONFIG "config"
 454 #define CMD_LINE_OPT_ETH_DEST "eth-dest"
 455 #define CMD_LINE_OPT_NO_NUMA "no-numa"
 456 #define CMD_LINE_OPT_IPV6 "ipv6"
 457 #define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
 458 #define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
 459
 460 /*
 461  * This expression is used to calculate the number of mbufs needed
 462  * depending on user input, taking  into account memory for rx and
 463  * tx hardware rings, cache per lcore and mtable per port per lcore.
 464  * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
 465  * value of 8192
 466  */
 467 #define NB_MBUF RTE_MAX(        \
 468         (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT +        \
 469         nb_ports*nb_lcores*MAX_PKT_BURST +                      \
 470         nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT +          \
 471         nb_lcores*MEMPOOL_CACHE_SIZE),                          \
 472         (unsigned)8192)
 473
 474 /* Parse the argument given in the command line of the application */
 475 static int
 476 parse_args(int argc, char **argv)
 477 {
 478         int opt, ret;
 479         char **argvopt;
 480         int option_index;
 481         char *prgname = argv[0];
 482         static struct option lgopts[] = {
 483                 {CMD_LINE_OPT_CONFIG, 1, 0, 0},
 484                 {CMD_LINE_OPT_ETH_DEST, 1, 0, 0},
 485                 {CMD_LINE_OPT_NO_NUMA, 0, 0, 0},
 486                 {CMD_LINE_OPT_IPV6, 0, 0, 0},
 487                 {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
 488                 {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
 489                 {NULL, 0, 0, 0}
 490         };
 491
 492         argvopt = argv;
 493
 494         /* Error or normal output strings. */
 495         const char *str1 = "L3FWD: Invalid portmask";
 496         const char *str2 = "L3FWD: Promiscuous mode selected";
 497         const char *str3 = "L3FWD: Exact match selected";
 498         const char *str4 = "L3FWD: Longest-prefix match selected";
 499         const char *str5 = "L3FWD: Invalid config";
 500         const char *str6 = "L3FWD: NUMA is disabled";
 501         const char *str7 = "L3FWD: IPV6 is specified";
 502         const char *str8 =
 503                 "L3FWD: Jumbo frame is enabled - disabling simple TX path";
 504         const char *str9 = "L3FWD: Invalid packet length";
 505         const char *str10 = "L3FWD: Set jumbo frame max packet len to ";
 506         const char *str11 = "L3FWD: Invalid hash entry number";
 507         const char *str12 =
 508                 "L3FWD: LPM and EM are mutually exclusive, select only one";
 509         const char *str13 = "L3FWD: LPM or EM none selected, default LPM on";
 510
 511         while ((opt = getopt_long(argc, argvopt, "p:PLE",
 512                                 lgopts, &option_index)) != EOF) {
 513
 514                 switch (opt) {
 515                 /* portmask */
 516                 case 'p':
 517                         enabled_port_mask = parse_portmask(optarg);
 518                         if (enabled_port_mask == 0) {
 519                                 printf("%s\n", str1);
 520                                 print_usage(prgname);
 521                                 return -1;
 522                         }
 523                         break;
 524                 case 'P':
 525                         printf("%s\n", str2);
 526                         promiscuous_on = 1;
 527                         break;
 528
 529                 case 'E':
 530                         printf("%s\n", str3);
 531                         l3fwd_em_on = 1;
 532                         break;
 533
 534                 case 'L':
 535                         printf("%s\n", str4);
 536                         l3fwd_lpm_on = 1;
 537                         break;
 538
 539                 /* long options */
 540                 case 0:
 541                         if (!strncmp(lgopts[option_index].name,
 542                                         CMD_LINE_OPT_CONFIG,
 543                                         sizeof(CMD_LINE_OPT_CONFIG))) {
 544
 545                                 ret = parse_config(optarg);
 546                                 if (ret) {
 547                                         printf("%s\n", str5);
 548                                         print_usage(prgname);
 549                                         return -1;
 550                                 }
 551                         }
 552
 553                         if (!strncmp(lgopts[option_index].name,
 554                                         CMD_LINE_OPT_ETH_DEST,
 555                                         sizeof(CMD_LINE_OPT_ETH_DEST))) {
 556                                         parse_eth_dest(optarg);
 557                         }
 558
 559                         if (!strncmp(lgopts[option_index].name,
 560                                         CMD_LINE_OPT_NO_NUMA,
 561                                         sizeof(CMD_LINE_OPT_NO_NUMA))) {
 562                                 printf("%s\n", str6);
 563                                 numa_on = 0;
 564                         }
 565
 566                         if (!strncmp(lgopts[option_index].name,
 567                                 CMD_LINE_OPT_IPV6,
 568                                 sizeof(CMD_LINE_OPT_IPV6))) {
 569                                 printf("%sn", str7);
 570                                 ipv6 = 1;
 571                         }
 572
 573                         if (!strncmp(lgopts[option_index].name,
 574                                         CMD_LINE_OPT_ENABLE_JUMBO,
 575                                         sizeof(CMD_LINE_OPT_ENABLE_JUMBO))) {
 576                                 struct option lenopts = {
 577                                         "max-pkt-len", required_argument, 0, 0
 578                                 };
 579
 580                                 printf("%s\n", str8);
 581                                 port_conf.rxmode.jumbo_frame = 1;
 582
 583                                 /*
 584                                  * if no max-pkt-len set, use the default
 585                                  * value ETHER_MAX_LEN.
 586                                  */
 587                                 if (0 == getopt_long(argc, argvopt, "",
 588                                                 &lenopts, &option_index)) {
 589                                         ret = parse_max_pkt_len(optarg);
 590                                         if ((ret < 64) ||
 591                                                 (ret > MAX_JUMBO_PKT_LEN)) {
 592                                                 printf("%s\n", str9);
 593                                                 print_usage(prgname);
 594                                                 return -1;
 595                                         }
 596                                         port_conf.rxmode.max_rx_pkt_len = ret;
 597                                 }
 598                                 printf("%s %u\n", str10,
 599                                 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
 600                         }
 601
 602                         if (!strncmp(lgopts[option_index].name,
 603                                 CMD_LINE_OPT_HASH_ENTRY_NUM,
 604                                 sizeof(CMD_LINE_OPT_HASH_ENTRY_NUM))) {
 605
 606                                 ret = parse_hash_entry_number(optarg);
 607                                 if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
 608                                         hash_entry_number = ret;
 609                                 } else {
 610                                         printf("%s\n", str11);
 611                                         print_usage(prgname);
 612                                         return -1;
 613                                 }
 614                         }
 615                         break;
 616
 617                 default:
 618                         print_usage(prgname);
 619                         return -1;
 620                 }
 621         }
 622
 623         /* If both LPM and EM are selected, return error. */
 624         if (l3fwd_lpm_on && l3fwd_em_on) {
 625                 printf("%s\n", str12);
 626                 return -1;
 627         }
 628
 629         /*
 630          * Nothing is selected, pick longest-prefix match
 631          * as default match.
 632          */
 633         if (!l3fwd_lpm_on && !l3fwd_em_on) {
 634                 l3fwd_lpm_on = 1;
 635                 printf("%s\n", str13);
 636         }
 637
 638         /*
 639          * ipv6 and hash flags are valid only for
 640          * exact macth, reset them to default for
 641          * longest-prefix match.
 642          */
 643         if (l3fwd_lpm_on) {
 644                 ipv6 = 0;
 645                 hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 646         }
 647
 648         if (optind >= 0)
 649                 argv[optind-1] = prgname;
 650
 651         ret = optind-1;
 652         optind = 0; /* reset getopt lib */
 653         return ret;
 654 }
 655
 656 static void
 657 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
 658 {
 659         char buf[ETHER_ADDR_FMT_SIZE];
 660         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
 661         printf("%s%s", name, buf);
 662 }
 663
 664 static int
 665 init_mem(unsigned nb_mbuf)
 666 {
 667         struct lcore_conf *qconf;
 668         int socketid;
 669         unsigned lcore_id;
 670         char s[64];
 671
 672         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 673                 if (rte_lcore_is_enabled(lcore_id) == 0)
 674                         continue;
 675
 676                 if (numa_on)
 677                         socketid = rte_lcore_to_socket_id(lcore_id);
 678                 else
 679                         socketid = 0;
 680
 681                 if (socketid >= NB_SOCKETS) {
 682                         rte_exit(EXIT_FAILURE,
 683                                 "Socket %d of lcore %u is out of range %d\n",
 684                                 socketid, lcore_id, NB_SOCKETS);
 685                 }
 686
 687                 if (pktmbuf_pool[socketid] == NULL) {
 688                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 689                         pktmbuf_pool[socketid] =
 690                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 691                                         MEMPOOL_CACHE_SIZE, 0,
 692                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 693                         if (pktmbuf_pool[socketid] == NULL)
 694                                 rte_exit(EXIT_FAILURE,
 695                                         "Cannot init mbuf pool on socket %d\n",
 696                                         socketid);
 697                         else
 698                                 printf("Allocated mbuf pool on socket %d\n",
 699                                         socketid);
 700
 701                         /* Setup either LPM or EM(f.e Hash).  */
 702                         l3fwd_lkp.setup(socketid);
 703                 }
 704                 qconf = &lcore_conf[lcore_id];
 705                 qconf->ipv4_lookup_struct =
 706                         l3fwd_lkp.get_ipv4_lookup_struct(socketid);
 707                 qconf->ipv6_lookup_struct =
 708                         l3fwd_lkp.get_ipv6_lookup_struct(socketid);
 709         }
 710         return 0;
 711 }
 712
 713 /* Check the link status of all ports in up to 9s, and print them finally */
 714 static void
 715 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 716 {
 717 #define CHECK_INTERVAL 100 /* 100ms */
 718 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 719         uint8_t portid, count, all_ports_up, print_flag = 0;
 720         struct rte_eth_link link;
 721
 722         printf("\nChecking link status");
 723         fflush(stdout);
 724         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 725                 if (force_quit)
 726                         return;
 727                 all_ports_up = 1;
 728                 for (portid = 0; portid < port_num; portid++) {
 729                         if (force_quit)
 730                                 return;
 731                         if ((port_mask & (1 << portid)) == 0)
 732                                 continue;
 733                         memset(&link, 0, sizeof(link));
 734                         rte_eth_link_get_nowait(portid, &link);
 735                         /* print link status if flag set */
 736                         if (print_flag == 1) {
 737                                 if (link.link_status)
 738                                         printf("Port %d Link Up - speed %u "
 739                                                 "Mbps - %s\n", (uint8_t)portid,
 740                                                 (unsigned)link.link_speed,
 741                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 742                                         ("full-duplex") : ("half-duplex\n"));
 743                                 else
 744                                         printf("Port %d Link Down\n",
 745                                                 (uint8_t)portid);
 746                                 continue;
 747                         }
 748                         /* clear all_ports_up flag if any link down */
 749                         if (link.link_status == 0) {
 750                                 all_ports_up = 0;
 751                                 break;
 752                         }
 753                 }
 754                 /* after finally printing all link status, get out */
 755                 if (print_flag == 1)
 756                         break;
 757
 758                 if (all_ports_up == 0) {
 759                         printf(".");
 760                         fflush(stdout);
 761                         rte_delay_ms(CHECK_INTERVAL);
 762                 }
 763
 764                 /* set the print_flag if all ports up or timeout */
 765                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 766                         print_flag = 1;
 767                         printf("done\n");
 768                 }
 769         }
 770 }
 771
 772 static void
 773 signal_handler(int signum)
 774 {
 775         if (signum == SIGINT || signum == SIGTERM) {
 776                 printf("\n\nSignal %d received, preparing to exit...\n",
 777                                 signum);
 778                 force_quit = true;
 779         }
 780 }
 781
 782 int
 783 main(int argc, char **argv)
 784 {
 785         struct lcore_conf *qconf;
 786         struct rte_eth_dev_info dev_info;
 787         struct rte_eth_txconf *txconf;
 788         int ret;
 789         unsigned nb_ports;
 790         uint16_t queueid;
 791         unsigned lcore_id;
 792         uint32_t n_tx_queue, nb_lcores;
 793         uint8_t portid, nb_rx_queue, queue, socketid;
 794
 795         /* init EAL */
 796         ret = rte_eal_init(argc, argv);
 797         if (ret < 0)
 798                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
 799         argc -= ret;
 800         argv += ret;
 801
 802         force_quit = false;
 803         signal(SIGINT, signal_handler);
 804         signal(SIGTERM, signal_handler);
 805
 806         /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
 807         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 808                 dest_eth_addr[portid] =
 809                         ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
 810                 *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 811         }
 812
 813         /* parse application arguments (after the EAL ones) */
 814         ret = parse_args(argc, argv);
 815         if (ret < 0)
 816                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
 817
 818         if (check_lcore_params() < 0)
 819                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
 820
 821         ret = init_lcore_rx_queues();
 822         if (ret < 0)
 823                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
 824
 825         nb_ports = rte_eth_dev_count();
 826         if (nb_ports > RTE_MAX_ETHPORTS)
 827                 nb_ports = RTE_MAX_ETHPORTS;
 828
 829         if (check_port_config(nb_ports) < 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         for (portid = 0; portid < nb_ports; portid++) {
 839                 /* skip ports that are not enabled */
 840                 if ((enabled_port_mask & (1 << portid)) == 0) {
 841                         printf("\nSkipping disabled port %d\n", portid);
 842                         continue;
 843                 }
 844
 845                 /* init port */
 846                 printf("Initializing port %d ... ", portid );
 847                 fflush(stdout);
 848
 849                 nb_rx_queue = get_port_n_rx_queues(portid);
 850                 n_tx_queue = nb_lcores;
 851                 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
 852                         n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 853                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 854                         nb_rx_queue, (unsigned)n_tx_queue );
 855                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 856                                         (uint16_t)n_tx_queue, &port_conf);
 857                 if (ret < 0)
 858                         rte_exit(EXIT_FAILURE,
 859                                 "Cannot configure device: err=%d, port=%d\n",
 860                                 ret, portid);
 861
 862                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 863                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
 864                 printf(", ");
 865                 print_ethaddr("Destination:",
 866                         (const struct ether_addr *)&dest_eth_addr[portid]);
 867                 printf(", ");
 868
 869                 /*
 870                  * prepare src MACs for each port.
 871                  */
 872                 ether_addr_copy(&ports_eth_addr[portid],
 873                         (struct ether_addr *)(val_eth + portid) + 1);
 874
 875                 /* init memory */
 876                 ret = init_mem(NB_MBUF);
 877                 if (ret < 0)
 878                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
 879
 880                 /* init one TX queue per couple (lcore,port) */
 881                 queueid = 0;
 882                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 883                         if (rte_lcore_is_enabled(lcore_id) == 0)
 884                                 continue;
 885
 886                         if (numa_on)
 887                                 socketid =
 888                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 889                         else
 890                                 socketid = 0;
 891
 892                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 893                         fflush(stdout);
 894
 895                         rte_eth_dev_info_get(portid, &dev_info);
 896                         txconf = &dev_info.default_txconf;
 897                         if (port_conf.rxmode.jumbo_frame)
 898                                 txconf->txq_flags = 0;
 899                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
 900                                                      socketid, txconf);
 901                         if (ret < 0)
 902                                 rte_exit(EXIT_FAILURE,
 903                                         "rte_eth_tx_queue_setup: err=%d, "
 904                                         "port=%d\n", ret, portid);
 905
 906                         qconf = &lcore_conf[lcore_id];
 907                         qconf->tx_queue_id[portid] = queueid;
 908                         queueid++;
 909                 }
 910                 printf("\n");
 911         }
 912
 913         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 914                 if (rte_lcore_is_enabled(lcore_id) == 0)
 915                         continue;
 916                 qconf = &lcore_conf[lcore_id];
 917                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
 918                 fflush(stdout);
 919                 /* init RX queues */
 920                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
 921                         portid = qconf->rx_queue_list[queue].port_id;
 922                         queueid = qconf->rx_queue_list[queue].queue_id;
 923
 924                         if (numa_on)
 925                                 socketid =
 926                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 927                         else
 928                                 socketid = 0;
 929
 930                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 931                         fflush(stdout);
 932
 933                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
 934                                         socketid,
 935                                         NULL,
 936                                         pktmbuf_pool[socketid]);
 937                         if (ret < 0)
 938                                 rte_exit(EXIT_FAILURE,
 939                                 "rte_eth_rx_queue_setup: err=%d, port=%d\n",
 940                                 ret, portid);
 941                 }
 942         }
 943
 944         printf("\n");
 945
 946         /* start ports */
 947         for (portid = 0; portid < nb_ports; portid++) {
 948                 if ((enabled_port_mask & (1 << portid)) == 0) {
 949                         continue;
 950                 }
 951                 /* Start device */
 952                 ret = rte_eth_dev_start(portid);
 953                 if (ret < 0)
 954                         rte_exit(EXIT_FAILURE,
 955                                 "rte_eth_dev_start: err=%d, port=%d\n",
 956                                 ret, portid);
 957
 958                 /*
 959                  * If enabled, put device in promiscuous mode.
 960                  * This allows IO forwarding mode to forward packets
 961                  * to itself through 2 cross-connected  ports of the
 962                  * target machine.
 963                  */
 964                 if (promiscuous_on)
 965                         rte_eth_promiscuous_enable(portid);
 966         }
 967
 968         check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
 969
 970         ret = 0;
 971         /* launch per-lcore init on every lcore */
 972         rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MASTER);
 973         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 974                 if (rte_eal_wait_lcore(lcore_id) < 0) {
 975                         ret = -1;
 976                         break;
 977                 }
 978         }
 979
 980         /* stop ports */
 981         for (portid = 0; portid < nb_ports; portid++) {
 982                 if ((enabled_port_mask & (1 << portid)) == 0)
 983                         continue;
 984                 printf("Closing port %d...", portid);
 985                 rte_eth_dev_stop(portid);
 986                 rte_eth_dev_close(portid);
 987                 printf(" Done\n");
 988         }
 989         printf("Bye...\n");
 990
 991         return ret;
 992 }