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 static int parse_ptype; /**< Parse packet type using rx callback, and */
 107                         /**< disabled by default */
 108
 109 /* Global variables. */
 110
 111 volatile bool force_quit;
 112
 113 /* ethernet addresses of ports */
 114 uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
 115 struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
 116
 117 xmm_t val_eth[RTE_MAX_ETHPORTS];
 118
 119 /* mask of enabled ports */
 120 uint32_t enabled_port_mask;
 121
 122 /* Used only in exact match mode. */
 123 int ipv6; /**< ipv6 is false by default. */
 124 uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 125
 126 struct lcore_conf lcore_conf[RTE_MAX_LCORE];
 127
 128 struct lcore_params {
 129         uint8_t port_id;
 130         uint8_t queue_id;
 131         uint8_t lcore_id;
 132 } __rte_cache_aligned;
 133
 134 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 135 static struct lcore_params lcore_params_array_default[] = {
 136         {0, 0, 2},
 137         {0, 1, 2},
 138         {0, 2, 2},
 139         {1, 0, 2},
 140         {1, 1, 2},
 141         {1, 2, 2},
 142         {2, 0, 2},
 143         {3, 0, 3},
 144         {3, 1, 3},
 145 };
 146
 147 static struct lcore_params * lcore_params = lcore_params_array_default;
 148 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
 149                                 sizeof(lcore_params_array_default[0]);
 150
 151 static struct rte_eth_conf port_conf = {
 152         .rxmode = {
 153                 .mq_mode = ETH_MQ_RX_RSS,
 154                 .max_rx_pkt_len = ETHER_MAX_LEN,
 155                 .split_hdr_size = 0,
 156                 .header_split   = 0, /**< Header Split disabled */
 157                 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
 158                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 159                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 160                 .hw_strip_crc   = 0, /**< CRC stripped by hardware */
 161         },
 162         .rx_adv_conf = {
 163                 .rss_conf = {
 164                         .rss_key = NULL,
 165                         .rss_hf = ETH_RSS_IP,
 166                 },
 167         },
 168         .txmode = {
 169                 .mq_mode = ETH_MQ_TX_NONE,
 170         },
 171 };
 172
 173 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 174
 175 struct l3fwd_lkp_mode {
 176         void  (*setup)(int);
 177         int   (*check_ptype)(int);
 178         rte_rx_callback_fn cb_parse_ptype;
 179         int   (*main_loop)(void *);
 180         void* (*get_ipv4_lookup_struct)(int);
 181         void* (*get_ipv6_lookup_struct)(int);
 182 };
 183
 184 static struct l3fwd_lkp_mode l3fwd_lkp;
 185
 186 static struct l3fwd_lkp_mode l3fwd_em_lkp = {
 187         .setup                  = setup_hash,
 188         .check_ptype            = em_check_ptype,
 189         .cb_parse_ptype         = em_cb_parse_ptype,
 190         .main_loop              = em_main_loop,
 191         .get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
 192         .get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
 193 };
 194
 195 static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
 196         .setup                  = setup_lpm,
 197         .check_ptype            = lpm_check_ptype,
 198         .cb_parse_ptype         = lpm_cb_parse_ptype,
 199         .main_loop              = lpm_main_loop,
 200         .get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
 201         .get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
 202 };
 203
 204 /*
 205  * Setup lookup methods for forwarding.
 206  * Currently exact-match and longest-prefix-match
 207  * are supported ones.
 208  */
 209 static void
 210 setup_l3fwd_lookup_tables(void)
 211 {
 212         /* Setup HASH lookup functions. */
 213         if (l3fwd_em_on)
 214                 l3fwd_lkp = l3fwd_em_lkp;
 215         /* Setup LPM lookup functions. */
 216         else
 217                 l3fwd_lkp = l3fwd_lpm_lkp;
 218 }
 219
 220 static int
 221 check_lcore_params(void)
 222 {
 223         uint8_t queue, lcore;
 224         uint16_t i;
 225         int socketid;
 226
 227         for (i = 0; i < nb_lcore_params; ++i) {
 228                 queue = lcore_params[i].queue_id;
 229                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
 230                         printf("invalid queue number: %hhu\n", queue);
 231                         return -1;
 232                 }
 233                 lcore = lcore_params[i].lcore_id;
 234                 if (!rte_lcore_is_enabled(lcore)) {
 235                         printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
 236                         return -1;
 237                 }
 238                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
 239                         (numa_on == 0)) {
 240                         printf("warning: lcore %hhu is on socket %d with numa off \n",
 241                                 lcore, socketid);
 242                 }
 243         }
 244         return 0;
 245 }
 246
 247 static int
 248 check_port_config(const unsigned nb_ports)
 249 {
 250         unsigned portid;
 251         uint16_t i;
 252
 253         for (i = 0; i < nb_lcore_params; ++i) {
 254                 portid = lcore_params[i].port_id;
 255                 if ((enabled_port_mask & (1 << portid)) == 0) {
 256                         printf("port %u is not enabled in port mask\n", portid);
 257                         return -1;
 258                 }
 259                 if (portid >= nb_ports) {
 260                         printf("port %u is not present on the board\n", portid);
 261                         return -1;
 262                 }
 263         }
 264         return 0;
 265 }
 266
 267 static uint8_t
 268 get_port_n_rx_queues(const uint8_t port)
 269 {
 270         int queue = -1;
 271         uint16_t i;
 272
 273         for (i = 0; i < nb_lcore_params; ++i) {
 274                 if (lcore_params[i].port_id == port) {
 275                         if (lcore_params[i].queue_id == queue+1)
 276                                 queue = lcore_params[i].queue_id;
 277                         else
 278                                 rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
 279                                                 " in sequence and must start with 0\n",
 280                                                 lcore_params[i].port_id);
 281                 }
 282         }
 283         return (uint8_t)(++queue);
 284 }
 285
 286 static int
 287 init_lcore_rx_queues(void)
 288 {
 289         uint16_t i, nb_rx_queue;
 290         uint8_t lcore;
 291
 292         for (i = 0; i < nb_lcore_params; ++i) {
 293                 lcore = lcore_params[i].lcore_id;
 294                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
 295                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
 296                         printf("error: too many queues (%u) for lcore: %u\n",
 297                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
 298                         return -1;
 299                 } else {
 300                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
 301                                 lcore_params[i].port_id;
 302                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
 303                                 lcore_params[i].queue_id;
 304                         lcore_conf[lcore].n_rx_queue++;
 305                 }
 306         }
 307         return 0;
 308 }
 309
 310 /* display usage */
 311 static void
 312 print_usage(const char *prgname)
 313 {
 314         printf ("%s [EAL options] -- -p PORTMASK -P"
 315                 "  [--config (port,queue,lcore)[,(port,queue,lcore]]"
 316                 "  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
 317                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 318                 "  -P : enable promiscuous mode\n"
 319                 "  -E : enable exact match\n"
 320                 "  -L : enable longest prefix match\n"
 321                 "  --config (port,queue,lcore): rx queues configuration\n"
 322                 "  --eth-dest=X,MM:MM:MM:MM:MM:MM: optional, ethernet destination for port X\n"
 323                 "  --no-numa: optional, disable numa awareness\n"
 324                 "  --ipv6: optional, specify it if running ipv6 packets\n"
 325                 "  --enable-jumbo: enable jumbo frame"
 326                 " which max packet len is PKTLEN in decimal (64-9600)\n"
 327                 "  --hash-entry-num: specify the hash entry number in hexadecimal to be setup\n",
 328                 prgname);
 329 }
 330
 331 static int
 332 parse_max_pkt_len(const char *pktlen)
 333 {
 334         char *end = NULL;
 335         unsigned long len;
 336
 337         /* parse decimal string */
 338         len = strtoul(pktlen, &end, 10);
 339         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
 340                 return -1;
 341
 342         if (len == 0)
 343                 return -1;
 344
 345         return len;
 346 }
 347
 348 static int
 349 parse_portmask(const char *portmask)
 350 {
 351         char *end = NULL;
 352         unsigned long pm;
 353
 354         /* parse hexadecimal string */
 355         pm = strtoul(portmask, &end, 16);
 356         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 357                 return -1;
 358
 359         if (pm == 0)
 360                 return -1;
 361
 362         return pm;
 363 }
 364
 365 static int
 366 parse_hash_entry_number(const char *hash_entry_num)
 367 {
 368         char *end = NULL;
 369         unsigned long hash_en;
 370         /* parse hexadecimal string */
 371         hash_en = strtoul(hash_entry_num, &end, 16);
 372         if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
 373                 return -1;
 374
 375         if (hash_en == 0)
 376                 return -1;
 377
 378         return hash_en;
 379 }
 380
 381 static int
 382 parse_config(const char *q_arg)
 383 {
 384         char s[256];
 385         const char *p, *p0 = q_arg;
 386         char *end;
 387         enum fieldnames {
 388                 FLD_PORT = 0,
 389                 FLD_QUEUE,
 390                 FLD_LCORE,
 391                 _NUM_FLD
 392         };
 393         unsigned long int_fld[_NUM_FLD];
 394         char *str_fld[_NUM_FLD];
 395         int i;
 396         unsigned size;
 397
 398         nb_lcore_params = 0;
 399
 400         while ((p = strchr(p0,'(')) != NULL) {
 401                 ++p;
 402                 if((p0 = strchr(p,')')) == NULL)
 403                         return -1;
 404
 405                 size = p0 - p;
 406                 if(size >= sizeof(s))
 407                         return -1;
 408
 409                 snprintf(s, sizeof(s), "%.*s", size, p);
 410                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
 411                         return -1;
 412                 for (i = 0; i < _NUM_FLD; i++){
 413                         errno = 0;
 414                         int_fld[i] = strtoul(str_fld[i], &end, 0);
 415                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
 416                                 return -1;
 417                 }
 418                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
 419                         printf("exceeded max number of lcore params: %hu\n",
 420                                 nb_lcore_params);
 421                         return -1;
 422                 }
 423                 lcore_params_array[nb_lcore_params].port_id =
 424                         (uint8_t)int_fld[FLD_PORT];
 425                 lcore_params_array[nb_lcore_params].queue_id =
 426                         (uint8_t)int_fld[FLD_QUEUE];
 427                 lcore_params_array[nb_lcore_params].lcore_id =
 428                         (uint8_t)int_fld[FLD_LCORE];
 429                 ++nb_lcore_params;
 430         }
 431         lcore_params = lcore_params_array;
 432         return 0;
 433 }
 434
 435 static void
 436 parse_eth_dest(const char *optarg)
 437 {
 438         uint8_t portid;
 439         char *port_end;
 440         uint8_t c, *dest, peer_addr[6];
 441
 442         errno = 0;
 443         portid = strtoul(optarg, &port_end, 10);
 444         if (errno != 0 || port_end == optarg || *port_end++ != ',')
 445                 rte_exit(EXIT_FAILURE,
 446                 "Invalid eth-dest: %s", optarg);
 447         if (portid >= RTE_MAX_ETHPORTS)
 448                 rte_exit(EXIT_FAILURE,
 449                 "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
 450                 portid, RTE_MAX_ETHPORTS);
 451
 452         if (cmdline_parse_etheraddr(NULL, port_end,
 453                 &peer_addr, sizeof(peer_addr)) < 0)
 454                 rte_exit(EXIT_FAILURE,
 455                 "Invalid ethernet address: %s\n",
 456                 port_end);
 457         dest = (uint8_t *)&dest_eth_addr[portid];
 458         for (c = 0; c < 6; c++)
 459                 dest[c] = peer_addr[c];
 460         *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 461 }
 462
 463 #define MAX_JUMBO_PKT_LEN  9600
 464 #define MEMPOOL_CACHE_SIZE 256
 465
 466 #define CMD_LINE_OPT_CONFIG "config"
 467 #define CMD_LINE_OPT_ETH_DEST "eth-dest"
 468 #define CMD_LINE_OPT_NO_NUMA "no-numa"
 469 #define CMD_LINE_OPT_IPV6 "ipv6"
 470 #define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
 471 #define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
 472 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
 473
 474 /*
 475  * This expression is used to calculate the number of mbufs needed
 476  * depending on user input, taking  into account memory for rx and
 477  * tx hardware rings, cache per lcore and mtable per port per lcore.
 478  * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
 479  * value of 8192
 480  */
 481 #define NB_MBUF RTE_MAX(        \
 482         (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT +        \
 483         nb_ports*nb_lcores*MAX_PKT_BURST +                      \
 484         nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT +          \
 485         nb_lcores*MEMPOOL_CACHE_SIZE),                          \
 486         (unsigned)8192)
 487
 488 /* Parse the argument given in the command line of the application */
 489 static int
 490 parse_args(int argc, char **argv)
 491 {
 492         int opt, ret;
 493         char **argvopt;
 494         int option_index;
 495         char *prgname = argv[0];
 496         static struct option lgopts[] = {
 497                 {CMD_LINE_OPT_CONFIG, 1, 0, 0},
 498                 {CMD_LINE_OPT_ETH_DEST, 1, 0, 0},
 499                 {CMD_LINE_OPT_NO_NUMA, 0, 0, 0},
 500                 {CMD_LINE_OPT_IPV6, 0, 0, 0},
 501                 {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
 502                 {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
 503                 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
 504                 {NULL, 0, 0, 0}
 505         };
 506
 507         argvopt = argv;
 508
 509         /* Error or normal output strings. */
 510         const char *str1 = "L3FWD: Invalid portmask";
 511         const char *str2 = "L3FWD: Promiscuous mode selected";
 512         const char *str3 = "L3FWD: Exact match selected";
 513         const char *str4 = "L3FWD: Longest-prefix match selected";
 514         const char *str5 = "L3FWD: Invalid config";
 515         const char *str6 = "L3FWD: NUMA is disabled";
 516         const char *str7 = "L3FWD: IPV6 is specified";
 517         const char *str8 =
 518                 "L3FWD: Jumbo frame is enabled - disabling simple TX path";
 519         const char *str9 = "L3FWD: Invalid packet length";
 520         const char *str10 = "L3FWD: Set jumbo frame max packet len to ";
 521         const char *str11 = "L3FWD: Invalid hash entry number";
 522         const char *str12 =
 523                 "L3FWD: LPM and EM are mutually exclusive, select only one";
 524         const char *str13 = "L3FWD: LPM or EM none selected, default LPM on";
 525
 526         while ((opt = getopt_long(argc, argvopt, "p:PLE",
 527                                 lgopts, &option_index)) != EOF) {
 528
 529                 switch (opt) {
 530                 /* portmask */
 531                 case 'p':
 532                         enabled_port_mask = parse_portmask(optarg);
 533                         if (enabled_port_mask == 0) {
 534                                 printf("%s\n", str1);
 535                                 print_usage(prgname);
 536                                 return -1;
 537                         }
 538                         break;
 539                 case 'P':
 540                         printf("%s\n", str2);
 541                         promiscuous_on = 1;
 542                         break;
 543
 544                 case 'E':
 545                         printf("%s\n", str3);
 546                         l3fwd_em_on = 1;
 547                         break;
 548
 549                 case 'L':
 550                         printf("%s\n", str4);
 551                         l3fwd_lpm_on = 1;
 552                         break;
 553
 554                 /* long options */
 555                 case 0:
 556                         if (!strncmp(lgopts[option_index].name,
 557                                         CMD_LINE_OPT_CONFIG,
 558                                         sizeof(CMD_LINE_OPT_CONFIG))) {
 559
 560                                 ret = parse_config(optarg);
 561                                 if (ret) {
 562                                         printf("%s\n", str5);
 563                                         print_usage(prgname);
 564                                         return -1;
 565                                 }
 566                         }
 567
 568                         if (!strncmp(lgopts[option_index].name,
 569                                         CMD_LINE_OPT_ETH_DEST,
 570                                         sizeof(CMD_LINE_OPT_ETH_DEST))) {
 571                                         parse_eth_dest(optarg);
 572                         }
 573
 574                         if (!strncmp(lgopts[option_index].name,
 575                                         CMD_LINE_OPT_NO_NUMA,
 576                                         sizeof(CMD_LINE_OPT_NO_NUMA))) {
 577                                 printf("%s\n", str6);
 578                                 numa_on = 0;
 579                         }
 580
 581                         if (!strncmp(lgopts[option_index].name,
 582                                 CMD_LINE_OPT_IPV6,
 583                                 sizeof(CMD_LINE_OPT_IPV6))) {
 584                                 printf("%sn", str7);
 585                                 ipv6 = 1;
 586                         }
 587
 588                         if (!strncmp(lgopts[option_index].name,
 589                                         CMD_LINE_OPT_ENABLE_JUMBO,
 590                                         sizeof(CMD_LINE_OPT_ENABLE_JUMBO))) {
 591                                 struct option lenopts = {
 592                                         "max-pkt-len", required_argument, 0, 0
 593                                 };
 594
 595                                 printf("%s\n", str8);
 596                                 port_conf.rxmode.jumbo_frame = 1;
 597
 598                                 /*
 599                                  * if no max-pkt-len set, use the default
 600                                  * value ETHER_MAX_LEN.
 601                                  */
 602                                 if (0 == getopt_long(argc, argvopt, "",
 603                                                 &lenopts, &option_index)) {
 604                                         ret = parse_max_pkt_len(optarg);
 605                                         if ((ret < 64) ||
 606                                                 (ret > MAX_JUMBO_PKT_LEN)) {
 607                                                 printf("%s\n", str9);
 608                                                 print_usage(prgname);
 609                                                 return -1;
 610                                         }
 611                                         port_conf.rxmode.max_rx_pkt_len = ret;
 612                                 }
 613                                 printf("%s %u\n", str10,
 614                                 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
 615                         }
 616
 617                         if (!strncmp(lgopts[option_index].name,
 618                                 CMD_LINE_OPT_HASH_ENTRY_NUM,
 619                                 sizeof(CMD_LINE_OPT_HASH_ENTRY_NUM))) {
 620
 621                                 ret = parse_hash_entry_number(optarg);
 622                                 if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
 623                                         hash_entry_number = ret;
 624                                 } else {
 625                                         printf("%s\n", str11);
 626                                         print_usage(prgname);
 627                                         return -1;
 628                                 }
 629                         }
 630
 631                         if (!strncmp(lgopts[option_index].name,
 632                                      CMD_LINE_OPT_PARSE_PTYPE,
 633                                      sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
 634                                 printf("soft parse-ptype is enabled\n");
 635                                 parse_ptype = 1;
 636                         }
 637
 638                         break;
 639
 640                 default:
 641                         print_usage(prgname);
 642                         return -1;
 643                 }
 644         }
 645
 646         /* If both LPM and EM are selected, return error. */
 647         if (l3fwd_lpm_on && l3fwd_em_on) {
 648                 printf("%s\n", str12);
 649                 return -1;
 650         }
 651
 652         /*
 653          * Nothing is selected, pick longest-prefix match
 654          * as default match.
 655          */
 656         if (!l3fwd_lpm_on && !l3fwd_em_on) {
 657                 l3fwd_lpm_on = 1;
 658                 printf("%s\n", str13);
 659         }
 660
 661         /*
 662          * ipv6 and hash flags are valid only for
 663          * exact macth, reset them to default for
 664          * longest-prefix match.
 665          */
 666         if (l3fwd_lpm_on) {
 667                 ipv6 = 0;
 668                 hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 669         }
 670
 671         if (optind >= 0)
 672                 argv[optind-1] = prgname;
 673
 674         ret = optind-1;
 675         optind = 0; /* reset getopt lib */
 676         return ret;
 677 }
 678
 679 static void
 680 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
 681 {
 682         char buf[ETHER_ADDR_FMT_SIZE];
 683         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
 684         printf("%s%s", name, buf);
 685 }
 686
 687 static int
 688 init_mem(unsigned nb_mbuf)
 689 {
 690         struct lcore_conf *qconf;
 691         int socketid;
 692         unsigned lcore_id;
 693         char s[64];
 694
 695         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 696                 if (rte_lcore_is_enabled(lcore_id) == 0)
 697                         continue;
 698
 699                 if (numa_on)
 700                         socketid = rte_lcore_to_socket_id(lcore_id);
 701                 else
 702                         socketid = 0;
 703
 704                 if (socketid >= NB_SOCKETS) {
 705                         rte_exit(EXIT_FAILURE,
 706                                 "Socket %d of lcore %u is out of range %d\n",
 707                                 socketid, lcore_id, NB_SOCKETS);
 708                 }
 709
 710                 if (pktmbuf_pool[socketid] == NULL) {
 711                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 712                         pktmbuf_pool[socketid] =
 713                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 714                                         MEMPOOL_CACHE_SIZE, 0,
 715                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 716                         if (pktmbuf_pool[socketid] == NULL)
 717                                 rte_exit(EXIT_FAILURE,
 718                                         "Cannot init mbuf pool on socket %d\n",
 719                                         socketid);
 720                         else
 721                                 printf("Allocated mbuf pool on socket %d\n",
 722                                         socketid);
 723
 724                         /* Setup either LPM or EM(f.e Hash).  */
 725                         l3fwd_lkp.setup(socketid);
 726                 }
 727                 qconf = &lcore_conf[lcore_id];
 728                 qconf->ipv4_lookup_struct =
 729                         l3fwd_lkp.get_ipv4_lookup_struct(socketid);
 730                 qconf->ipv6_lookup_struct =
 731                         l3fwd_lkp.get_ipv6_lookup_struct(socketid);
 732         }
 733         return 0;
 734 }
 735
 736 /* Check the link status of all ports in up to 9s, and print them finally */
 737 static void
 738 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 739 {
 740 #define CHECK_INTERVAL 100 /* 100ms */
 741 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 742         uint8_t portid, count, all_ports_up, print_flag = 0;
 743         struct rte_eth_link link;
 744
 745         printf("\nChecking link status");
 746         fflush(stdout);
 747         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 748                 if (force_quit)
 749                         return;
 750                 all_ports_up = 1;
 751                 for (portid = 0; portid < port_num; portid++) {
 752                         if (force_quit)
 753                                 return;
 754                         if ((port_mask & (1 << portid)) == 0)
 755                                 continue;
 756                         memset(&link, 0, sizeof(link));
 757                         rte_eth_link_get_nowait(portid, &link);
 758                         /* print link status if flag set */
 759                         if (print_flag == 1) {
 760                                 if (link.link_status)
 761                                         printf("Port %d Link Up - speed %u "
 762                                                 "Mbps - %s\n", (uint8_t)portid,
 763                                                 (unsigned)link.link_speed,
 764                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 765                                         ("full-duplex") : ("half-duplex\n"));
 766                                 else
 767                                         printf("Port %d Link Down\n",
 768                                                 (uint8_t)portid);
 769                                 continue;
 770                         }
 771                         /* clear all_ports_up flag if any link down */
 772                         if (link.link_status == ETH_LINK_DOWN) {
 773                                 all_ports_up = 0;
 774                                 break;
 775                         }
 776                 }
 777                 /* after finally printing all link status, get out */
 778                 if (print_flag == 1)
 779                         break;
 780
 781                 if (all_ports_up == 0) {
 782                         printf(".");
 783                         fflush(stdout);
 784                         rte_delay_ms(CHECK_INTERVAL);
 785                 }
 786
 787                 /* set the print_flag if all ports up or timeout */
 788                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 789                         print_flag = 1;
 790                         printf("done\n");
 791                 }
 792         }
 793 }
 794
 795 static void
 796 signal_handler(int signum)
 797 {
 798         if (signum == SIGINT || signum == SIGTERM) {
 799                 printf("\n\nSignal %d received, preparing to exit...\n",
 800                                 signum);
 801                 force_quit = true;
 802         }
 803 }
 804
 805 static int
 806 prepare_ptype_parser(uint8_t portid, uint16_t queueid)
 807 {
 808         if (parse_ptype) {
 809                 printf("Port %d: softly parse packet type info\n", portid);
 810                 if (rte_eth_add_rx_callback(portid, queueid,
 811                                             l3fwd_lkp.cb_parse_ptype,
 812                                             NULL))
 813                         return 1;
 814
 815                 printf("Failed to add rx callback: port=%d\n", portid);
 816                 return 0;
 817         }
 818
 819         if (l3fwd_lkp.check_ptype(portid))
 820                 return 1;
 821
 822         printf("port %d cannot parse packet type, please add --%s\n",
 823                portid, CMD_LINE_OPT_PARSE_PTYPE);
 824         return 0;
 825 }
 826
 827 int
 828 main(int argc, char **argv)
 829 {
 830         struct lcore_conf *qconf;
 831         struct rte_eth_dev_info dev_info;
 832         struct rte_eth_txconf *txconf;
 833         int ret;
 834         unsigned nb_ports;
 835         uint16_t queueid;
 836         unsigned lcore_id;
 837         uint32_t n_tx_queue, nb_lcores;
 838         uint8_t portid, nb_rx_queue, queue, socketid;
 839
 840         /* init EAL */
 841         ret = rte_eal_init(argc, argv);
 842         if (ret < 0)
 843                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
 844         argc -= ret;
 845         argv += ret;
 846
 847         force_quit = false;
 848         signal(SIGINT, signal_handler);
 849         signal(SIGTERM, signal_handler);
 850
 851         /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
 852         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 853                 dest_eth_addr[portid] =
 854                         ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
 855                 *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 856         }
 857
 858         /* parse application arguments (after the EAL ones) */
 859         ret = parse_args(argc, argv);
 860         if (ret < 0)
 861                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
 862
 863         if (check_lcore_params() < 0)
 864                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
 865
 866         ret = init_lcore_rx_queues();
 867         if (ret < 0)
 868                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
 869
 870         nb_ports = rte_eth_dev_count();
 871
 872         if (check_port_config(nb_ports) < 0)
 873                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
 874
 875         nb_lcores = rte_lcore_count();
 876
 877         /* Setup function pointers for lookup method. */
 878         setup_l3fwd_lookup_tables();
 879
 880         /* initialize all ports */
 881         for (portid = 0; portid < nb_ports; portid++) {
 882                 /* skip ports that are not enabled */
 883                 if ((enabled_port_mask & (1 << portid)) == 0) {
 884                         printf("\nSkipping disabled port %d\n", portid);
 885                         continue;
 886                 }
 887
 888                 /* init port */
 889                 printf("Initializing port %d ... ", portid );
 890                 fflush(stdout);
 891
 892                 nb_rx_queue = get_port_n_rx_queues(portid);
 893                 n_tx_queue = nb_lcores;
 894                 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
 895                         n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 896                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 897                         nb_rx_queue, (unsigned)n_tx_queue );
 898                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 899                                         (uint16_t)n_tx_queue, &port_conf);
 900                 if (ret < 0)
 901                         rte_exit(EXIT_FAILURE,
 902                                 "Cannot configure device: err=%d, port=%d\n",
 903                                 ret, portid);
 904
 905                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 906                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
 907                 printf(", ");
 908                 print_ethaddr("Destination:",
 909                         (const struct ether_addr *)&dest_eth_addr[portid]);
 910                 printf(", ");
 911
 912                 /*
 913                  * prepare src MACs for each port.
 914                  */
 915                 ether_addr_copy(&ports_eth_addr[portid],
 916                         (struct ether_addr *)(val_eth + portid) + 1);
 917
 918                 /* init memory */
 919                 ret = init_mem(NB_MBUF);
 920                 if (ret < 0)
 921                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
 922
 923                 /* init one TX queue per couple (lcore,port) */
 924                 queueid = 0;
 925                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 926                         if (rte_lcore_is_enabled(lcore_id) == 0)
 927                                 continue;
 928
 929                         if (numa_on)
 930                                 socketid =
 931                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 932                         else
 933                                 socketid = 0;
 934
 935                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 936                         fflush(stdout);
 937
 938                         rte_eth_dev_info_get(portid, &dev_info);
 939                         txconf = &dev_info.default_txconf;
 940                         if (port_conf.rxmode.jumbo_frame)
 941                                 txconf->txq_flags = 0;
 942                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
 943                                                      socketid, txconf);
 944                         if (ret < 0)
 945                                 rte_exit(EXIT_FAILURE,
 946                                         "rte_eth_tx_queue_setup: err=%d, "
 947                                         "port=%d\n", ret, portid);
 948
 949                         qconf = &lcore_conf[lcore_id];
 950                         qconf->tx_queue_id[portid] = queueid;
 951                         queueid++;
 952
 953                         qconf->tx_port_id[qconf->n_tx_port] = portid;
 954                         qconf->n_tx_port++;
 955                 }
 956                 printf("\n");
 957         }
 958
 959         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 960                 if (rte_lcore_is_enabled(lcore_id) == 0)
 961                         continue;
 962                 qconf = &lcore_conf[lcore_id];
 963                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
 964                 fflush(stdout);
 965                 /* init RX queues */
 966                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
 967                         portid = qconf->rx_queue_list[queue].port_id;
 968                         queueid = qconf->rx_queue_list[queue].queue_id;
 969
 970                         if (numa_on)
 971                                 socketid =
 972                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 973                         else
 974                                 socketid = 0;
 975
 976                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 977                         fflush(stdout);
 978
 979                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
 980                                         socketid,
 981                                         NULL,
 982                                         pktmbuf_pool[socketid]);
 983                         if (ret < 0)
 984                                 rte_exit(EXIT_FAILURE,
 985                                 "rte_eth_rx_queue_setup: err=%d, port=%d\n",
 986                                 ret, portid);
 987                 }
 988         }
 989
 990         printf("\n");
 991
 992         /* start ports */
 993         for (portid = 0; portid < nb_ports; portid++) {
 994                 if ((enabled_port_mask & (1 << portid)) == 0) {
 995                         continue;
 996                 }
 997                 /* Start device */
 998                 ret = rte_eth_dev_start(portid);
 999                 if (ret < 0)
1000                         rte_exit(EXIT_FAILURE,
1001                                 "rte_eth_dev_start: err=%d, port=%d\n",
1002                                 ret, portid);
1003
1004                 /*
1005                  * If enabled, put device in promiscuous mode.
1006                  * This allows IO forwarding mode to forward packets
1007                  * to itself through 2 cross-connected  ports of the
1008                  * target machine.
1009                  */
1010                 if (promiscuous_on)
1011                         rte_eth_promiscuous_enable(portid);
1012         }
1013
1014         printf("\n");
1015
1016         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1017                 if (rte_lcore_is_enabled(lcore_id) == 0)
1018                         continue;
1019                 qconf = &lcore_conf[lcore_id];
1020                 for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
1021                         portid = qconf->rx_queue_list[queue].port_id;
1022                         queueid = qconf->rx_queue_list[queue].queue_id;
1023                         if (prepare_ptype_parser(portid, queueid) == 0)
1024                                 rte_exit(EXIT_FAILURE, "ptype check fails\n");
1025                 }
1026         }
1027
1028
1029         check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
1030
1031         ret = 0;
1032         /* launch per-lcore init on every lcore */
1033         rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MASTER);
1034         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1035                 if (rte_eal_wait_lcore(lcore_id) < 0) {
1036                         ret = -1;
1037                         break;
1038                 }
1039         }
1040
1041         /* stop ports */
1042         for (portid = 0; portid < nb_ports; portid++) {
1043                 if ((enabled_port_mask & (1 << portid)) == 0)
1044                         continue;
1045                 printf("Closing port %d...", portid);
1046                 rte_eth_dev_stop(portid);
1047                 rte_eth_dev_close(portid);
1048                 printf(" Done\n");
1049         }
1050         printf("Bye...\n");
1051
1052         return ret;
1053 }