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_mempool.h>
  70 #include <rte_mbuf.h>
  71 #include <rte_ip.h>
  72 #include <rte_tcp.h>
  73 #include <rte_udp.h>
  74 #include <rte_string_fns.h>
  75 #include <rte_cpuflags.h>
  76
  77 #include <cmdline_parse.h>
  78 #include <cmdline_parse_etheraddr.h>
  79
  80 #include "l3fwd.h"
  81
  82 /*
  83  * Configurable number of RX/TX ring descriptors
  84  */
  85 #define RTE_TEST_RX_DESC_DEFAULT 128
  86 #define RTE_TEST_TX_DESC_DEFAULT 512
  87
  88 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
  89 #define MAX_RX_QUEUE_PER_PORT 128
  90
  91 #define MAX_LCORE_PARAMS 1024
  92
  93 /* Static global variables used within this file. */
  94 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  95 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  96
  97 /**< Ports set in promiscuous mode off by default. */
  98 static int promiscuous_on;
  99
 100 /* Select Longest-Prefix or Exact match. */
 101 static int l3fwd_lpm_on;
 102 static int l3fwd_em_on;
 103
 104 static int numa_on = 1; /**< NUMA is enabled by default. */
 105 static int parse_ptype; /**< Parse packet type using rx callback, and */
 106                         /**< disabled by default */
 107
 108 /* Global variables. */
 109
 110 volatile bool force_quit;
 111
 112 /* ethernet addresses of ports */
 113 uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
 114 struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
 115
 116 xmm_t val_eth[RTE_MAX_ETHPORTS];
 117
 118 /* mask of enabled ports */
 119 uint32_t enabled_port_mask;
 120
 121 /* Used only in exact match mode. */
 122 int ipv6; /**< ipv6 is false by default. */
 123 uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 124
 125 struct lcore_conf lcore_conf[RTE_MAX_LCORE];
 126
 127 struct lcore_params {
 128         uint8_t port_id;
 129         uint8_t queue_id;
 130         uint8_t lcore_id;
 131 } __rte_cache_aligned;
 132
 133 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 134 static struct lcore_params lcore_params_array_default[] = {
 135         {0, 0, 2},
 136         {0, 1, 2},
 137         {0, 2, 2},
 138         {1, 0, 2},
 139         {1, 1, 2},
 140         {1, 2, 2},
 141         {2, 0, 2},
 142         {3, 0, 3},
 143         {3, 1, 3},
 144 };
 145
 146 static struct lcore_params * lcore_params = lcore_params_array_default;
 147 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
 148                                 sizeof(lcore_params_array_default[0]);
 149
 150 static struct rte_eth_conf port_conf = {
 151         .rxmode = {
 152                 .mq_mode = ETH_MQ_RX_RSS,
 153                 .max_rx_pkt_len = ETHER_MAX_LEN,
 154                 .split_hdr_size = 0,
 155                 .header_split   = 0, /**< Header Split disabled */
 156                 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
 157                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 158                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 159                 .hw_strip_crc   = 0, /**< CRC stripped by hardware */
 160         },
 161         .rx_adv_conf = {
 162                 .rss_conf = {
 163                         .rss_key = NULL,
 164                         .rss_hf = ETH_RSS_IP,
 165                 },
 166         },
 167         .txmode = {
 168                 .mq_mode = ETH_MQ_TX_NONE,
 169         },
 170 };
 171
 172 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 173
 174 struct l3fwd_lkp_mode {
 175         void  (*setup)(int);
 176         int   (*check_ptype)(int);
 177         rte_rx_callback_fn cb_parse_ptype;
 178         int   (*main_loop)(void *);
 179         void* (*get_ipv4_lookup_struct)(int);
 180         void* (*get_ipv6_lookup_struct)(int);
 181 };
 182
 183 static struct l3fwd_lkp_mode l3fwd_lkp;
 184
 185 static struct l3fwd_lkp_mode l3fwd_em_lkp = {
 186         .setup                  = setup_hash,
 187         .check_ptype            = em_check_ptype,
 188         .cb_parse_ptype         = em_cb_parse_ptype,
 189         .main_loop              = em_main_loop,
 190         .get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
 191         .get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
 192 };
 193
 194 static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
 195         .setup                  = setup_lpm,
 196         .check_ptype            = lpm_check_ptype,
 197         .cb_parse_ptype         = lpm_cb_parse_ptype,
 198         .main_loop              = lpm_main_loop,
 199         .get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
 200         .get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
 201 };
 202
 203 /*
 204  * Setup lookup methods for forwarding.
 205  * Currently exact-match and longest-prefix-match
 206  * are supported ones.
 207  */
 208 static void
 209 setup_l3fwd_lookup_tables(void)
 210 {
 211         /* Setup HASH lookup functions. */
 212         if (l3fwd_em_on)
 213                 l3fwd_lkp = l3fwd_em_lkp;
 214         /* Setup LPM lookup functions. */
 215         else
 216                 l3fwd_lkp = l3fwd_lpm_lkp;
 217 }
 218
 219 static int
 220 check_lcore_params(void)
 221 {
 222         uint8_t queue, lcore;
 223         uint16_t i;
 224         int socketid;
 225
 226         for (i = 0; i < nb_lcore_params; ++i) {
 227                 queue = lcore_params[i].queue_id;
 228                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
 229                         printf("invalid queue number: %hhu\n", queue);
 230                         return -1;
 231                 }
 232                 lcore = lcore_params[i].lcore_id;
 233                 if (!rte_lcore_is_enabled(lcore)) {
 234                         printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
 235                         return -1;
 236                 }
 237                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
 238                         (numa_on == 0)) {
 239                         printf("warning: lcore %hhu is on socket %d with numa off \n",
 240                                 lcore, socketid);
 241                 }
 242         }
 243         return 0;
 244 }
 245
 246 static int
 247 check_port_config(const unsigned nb_ports)
 248 {
 249         unsigned portid;
 250         uint16_t i;
 251
 252         for (i = 0; i < nb_lcore_params; ++i) {
 253                 portid = lcore_params[i].port_id;
 254                 if ((enabled_port_mask & (1 << portid)) == 0) {
 255                         printf("port %u is not enabled in port mask\n", portid);
 256                         return -1;
 257                 }
 258                 if (portid >= nb_ports) {
 259                         printf("port %u is not present on the board\n", portid);
 260                         return -1;
 261                 }
 262         }
 263         return 0;
 264 }
 265
 266 static uint8_t
 267 get_port_n_rx_queues(const uint8_t port)
 268 {
 269         int queue = -1;
 270         uint16_t i;
 271
 272         for (i = 0; i < nb_lcore_params; ++i) {
 273                 if (lcore_params[i].port_id == port) {
 274                         if (lcore_params[i].queue_id == queue+1)
 275                                 queue = lcore_params[i].queue_id;
 276                         else
 277                                 rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
 278                                                 " in sequence and must start with 0\n",
 279                                                 lcore_params[i].port_id);
 280                 }
 281         }
 282         return (uint8_t)(++queue);
 283 }
 284
 285 static int
 286 init_lcore_rx_queues(void)
 287 {
 288         uint16_t i, nb_rx_queue;
 289         uint8_t lcore;
 290
 291         for (i = 0; i < nb_lcore_params; ++i) {
 292                 lcore = lcore_params[i].lcore_id;
 293                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
 294                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
 295                         printf("error: too many queues (%u) for lcore: %u\n",
 296                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
 297                         return -1;
 298                 } else {
 299                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
 300                                 lcore_params[i].port_id;
 301                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
 302                                 lcore_params[i].queue_id;
 303                         lcore_conf[lcore].n_rx_queue++;
 304                 }
 305         }
 306         return 0;
 307 }
 308
 309 /* display usage */
 310 static void
 311 print_usage(const char *prgname)
 312 {
 313         printf("%s [EAL options] --"
 314                 " -p PORTMASK"
 315                 " [-P]"
 316                 " [-E]"
 317                 " [-L]"
 318                 " --config (port,queue,lcore)[,(port,queue,lcore)]"
 319                 " [--eth-dest=X,MM:MM:MM:MM:MM:MM]"
 320                 " [--enable-jumbo [--max-pkt-len PKTLEN]]"
 321                 " [--no-numa]"
 322                 " [--hash-entry-num]"
 323                 " [--ipv6]"
 324                 " [--parse-ptype]\n\n"
 325
 326                 "  -p PORTMASK: Hexadecimal bitmask of ports to configure\n"
 327                 "  -P : Enable promiscuous mode\n"
 328                 "  -E : Enable exact match\n"
 329                 "  -L : Enable longest prefix match (default)\n"
 330                 "  --config (port,queue,lcore): Rx queue configuration\n"
 331                 "  --eth-dest=X,MM:MM:MM:MM:MM:MM: Ethernet destination for port X\n"
 332                 "  --enable-jumbo: Enable jumbo frames\n"
 333                 "  --max-pkt-len: Under the premise of enabling jumbo,\n"
 334                 "                 maximum packet length in decimal (64-9600)\n"
 335                 "  --no-numa: Disable numa awareness\n"
 336                 "  --hash-entry-num: Specify the hash entry number in hexadecimal to be setup\n"
 337                 "  --ipv6: Set if running ipv6 packets\n"
 338                 "  --parse-ptype: Set to use software to analyze packet type\n\n",
 339                 prgname);
 340 }
 341
 342 static int
 343 parse_max_pkt_len(const char *pktlen)
 344 {
 345         char *end = NULL;
 346         unsigned long len;
 347
 348         /* parse decimal string */
 349         len = strtoul(pktlen, &end, 10);
 350         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
 351                 return -1;
 352
 353         if (len == 0)
 354                 return -1;
 355
 356         return len;
 357 }
 358
 359 static int
 360 parse_portmask(const char *portmask)
 361 {
 362         char *end = NULL;
 363         unsigned long pm;
 364
 365         /* parse hexadecimal string */
 366         pm = strtoul(portmask, &end, 16);
 367         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 368                 return -1;
 369
 370         if (pm == 0)
 371                 return -1;
 372
 373         return pm;
 374 }
 375
 376 static int
 377 parse_hash_entry_number(const char *hash_entry_num)
 378 {
 379         char *end = NULL;
 380         unsigned long hash_en;
 381         /* parse hexadecimal string */
 382         hash_en = strtoul(hash_entry_num, &end, 16);
 383         if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
 384                 return -1;
 385
 386         if (hash_en == 0)
 387                 return -1;
 388
 389         return hash_en;
 390 }
 391
 392 static int
 393 parse_config(const char *q_arg)
 394 {
 395         char s[256];
 396         const char *p, *p0 = q_arg;
 397         char *end;
 398         enum fieldnames {
 399                 FLD_PORT = 0,
 400                 FLD_QUEUE,
 401                 FLD_LCORE,
 402                 _NUM_FLD
 403         };
 404         unsigned long int_fld[_NUM_FLD];
 405         char *str_fld[_NUM_FLD];
 406         int i;
 407         unsigned size;
 408
 409         nb_lcore_params = 0;
 410
 411         while ((p = strchr(p0,'(')) != NULL) {
 412                 ++p;
 413                 if((p0 = strchr(p,')')) == NULL)
 414                         return -1;
 415
 416                 size = p0 - p;
 417                 if(size >= sizeof(s))
 418                         return -1;
 419
 420                 snprintf(s, sizeof(s), "%.*s", size, p);
 421                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
 422                         return -1;
 423                 for (i = 0; i < _NUM_FLD; i++){
 424                         errno = 0;
 425                         int_fld[i] = strtoul(str_fld[i], &end, 0);
 426                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
 427                                 return -1;
 428                 }
 429                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
 430                         printf("exceeded max number of lcore params: %hu\n",
 431                                 nb_lcore_params);
 432                         return -1;
 433                 }
 434                 lcore_params_array[nb_lcore_params].port_id =
 435                         (uint8_t)int_fld[FLD_PORT];
 436                 lcore_params_array[nb_lcore_params].queue_id =
 437                         (uint8_t)int_fld[FLD_QUEUE];
 438                 lcore_params_array[nb_lcore_params].lcore_id =
 439                         (uint8_t)int_fld[FLD_LCORE];
 440                 ++nb_lcore_params;
 441         }
 442         lcore_params = lcore_params_array;
 443         return 0;
 444 }
 445
 446 static void
 447 parse_eth_dest(const char *optarg)
 448 {
 449         uint8_t portid;
 450         char *port_end;
 451         uint8_t c, *dest, peer_addr[6];
 452
 453         errno = 0;
 454         portid = strtoul(optarg, &port_end, 10);
 455         if (errno != 0 || port_end == optarg || *port_end++ != ',')
 456                 rte_exit(EXIT_FAILURE,
 457                 "Invalid eth-dest: %s", optarg);
 458         if (portid >= RTE_MAX_ETHPORTS)
 459                 rte_exit(EXIT_FAILURE,
 460                 "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
 461                 portid, RTE_MAX_ETHPORTS);
 462
 463         if (cmdline_parse_etheraddr(NULL, port_end,
 464                 &peer_addr, sizeof(peer_addr)) < 0)
 465                 rte_exit(EXIT_FAILURE,
 466                 "Invalid ethernet address: %s\n",
 467                 port_end);
 468         dest = (uint8_t *)&dest_eth_addr[portid];
 469         for (c = 0; c < 6; c++)
 470                 dest[c] = peer_addr[c];
 471         *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 472 }
 473
 474 #define MAX_JUMBO_PKT_LEN  9600
 475 #define MEMPOOL_CACHE_SIZE 256
 476
 477 #define CMD_LINE_OPT_CONFIG "config"
 478 #define CMD_LINE_OPT_ETH_DEST "eth-dest"
 479 #define CMD_LINE_OPT_NO_NUMA "no-numa"
 480 #define CMD_LINE_OPT_IPV6 "ipv6"
 481 #define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
 482 #define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
 483 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
 484
 485 /*
 486  * This expression is used to calculate the number of mbufs needed
 487  * depending on user input, taking  into account memory for rx and
 488  * tx hardware rings, cache per lcore and mtable per port per lcore.
 489  * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
 490  * value of 8192
 491  */
 492 #define NB_MBUF RTE_MAX(        \
 493         (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT +        \
 494         nb_ports*nb_lcores*MAX_PKT_BURST +                      \
 495         nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT +          \
 496         nb_lcores*MEMPOOL_CACHE_SIZE),                          \
 497         (unsigned)8192)
 498
 499 /* Parse the argument given in the command line of the application */
 500 static int
 501 parse_args(int argc, char **argv)
 502 {
 503         int opt, ret;
 504         char **argvopt;
 505         int option_index;
 506         char *prgname = argv[0];
 507         static struct option lgopts[] = {
 508                 {CMD_LINE_OPT_CONFIG, 1, 0, 0},
 509                 {CMD_LINE_OPT_ETH_DEST, 1, 0, 0},
 510                 {CMD_LINE_OPT_NO_NUMA, 0, 0, 0},
 511                 {CMD_LINE_OPT_IPV6, 0, 0, 0},
 512                 {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
 513                 {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
 514                 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
 515                 {NULL, 0, 0, 0}
 516         };
 517
 518         argvopt = argv;
 519
 520         /* Error or normal output strings. */
 521         const char *str1 = "L3FWD: Invalid portmask";
 522         const char *str2 = "L3FWD: Promiscuous mode selected";
 523         const char *str3 = "L3FWD: Exact match selected";
 524         const char *str4 = "L3FWD: Longest-prefix match selected";
 525         const char *str5 = "L3FWD: Invalid config";
 526         const char *str6 = "L3FWD: NUMA is disabled";
 527         const char *str7 = "L3FWD: IPV6 is specified";
 528         const char *str8 =
 529                 "L3FWD: Jumbo frame is enabled - disabling simple TX path";
 530         const char *str9 = "L3FWD: Invalid packet length";
 531         const char *str10 = "L3FWD: Set jumbo frame max packet len to ";
 532         const char *str11 = "L3FWD: Invalid hash entry number";
 533         const char *str12 =
 534                 "L3FWD: LPM and EM are mutually exclusive, select only one";
 535         const char *str13 = "L3FWD: LPM or EM none selected, default LPM on";
 536
 537         while ((opt = getopt_long(argc, argvopt, "p:PLE",
 538                                 lgopts, &option_index)) != EOF) {
 539
 540                 switch (opt) {
 541                 /* portmask */
 542                 case 'p':
 543                         enabled_port_mask = parse_portmask(optarg);
 544                         if (enabled_port_mask == 0) {
 545                                 printf("%s\n", str1);
 546                                 print_usage(prgname);
 547                                 return -1;
 548                         }
 549                         break;
 550                 case 'P':
 551                         printf("%s\n", str2);
 552                         promiscuous_on = 1;
 553                         break;
 554
 555                 case 'E':
 556                         printf("%s\n", str3);
 557                         l3fwd_em_on = 1;
 558                         break;
 559
 560                 case 'L':
 561                         printf("%s\n", str4);
 562                         l3fwd_lpm_on = 1;
 563                         break;
 564
 565                 /* long options */
 566                 case 0:
 567                         if (!strncmp(lgopts[option_index].name,
 568                                         CMD_LINE_OPT_CONFIG,
 569                                         sizeof(CMD_LINE_OPT_CONFIG))) {
 570
 571                                 ret = parse_config(optarg);
 572                                 if (ret) {
 573                                         printf("%s\n", str5);
 574                                         print_usage(prgname);
 575                                         return -1;
 576                                 }
 577                         }
 578
 579                         if (!strncmp(lgopts[option_index].name,
 580                                         CMD_LINE_OPT_ETH_DEST,
 581                                         sizeof(CMD_LINE_OPT_ETH_DEST))) {
 582                                         parse_eth_dest(optarg);
 583                         }
 584
 585                         if (!strncmp(lgopts[option_index].name,
 586                                         CMD_LINE_OPT_NO_NUMA,
 587                                         sizeof(CMD_LINE_OPT_NO_NUMA))) {
 588                                 printf("%s\n", str6);
 589                                 numa_on = 0;
 590                         }
 591
 592                         if (!strncmp(lgopts[option_index].name,
 593                                 CMD_LINE_OPT_IPV6,
 594                                 sizeof(CMD_LINE_OPT_IPV6))) {
 595                                 printf("%sn", str7);
 596                                 ipv6 = 1;
 597                         }
 598
 599                         if (!strncmp(lgopts[option_index].name,
 600                                         CMD_LINE_OPT_ENABLE_JUMBO,
 601                                         sizeof(CMD_LINE_OPT_ENABLE_JUMBO))) {
 602                                 struct option lenopts = {
 603                                         "max-pkt-len", required_argument, 0, 0
 604                                 };
 605
 606                                 printf("%s\n", str8);
 607                                 port_conf.rxmode.jumbo_frame = 1;
 608
 609                                 /*
 610                                  * if no max-pkt-len set, use the default
 611                                  * value ETHER_MAX_LEN.
 612                                  */
 613                                 if (0 == getopt_long(argc, argvopt, "",
 614                                                 &lenopts, &option_index)) {
 615                                         ret = parse_max_pkt_len(optarg);
 616                                         if ((ret < 64) ||
 617                                                 (ret > MAX_JUMBO_PKT_LEN)) {
 618                                                 printf("%s\n", str9);
 619                                                 print_usage(prgname);
 620                                                 return -1;
 621                                         }
 622                                         port_conf.rxmode.max_rx_pkt_len = ret;
 623                                 }
 624                                 printf("%s %u\n", str10,
 625                                 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
 626                         }
 627
 628                         if (!strncmp(lgopts[option_index].name,
 629                                 CMD_LINE_OPT_HASH_ENTRY_NUM,
 630                                 sizeof(CMD_LINE_OPT_HASH_ENTRY_NUM))) {
 631
 632                                 ret = parse_hash_entry_number(optarg);
 633                                 if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
 634                                         hash_entry_number = ret;
 635                                 } else {
 636                                         printf("%s\n", str11);
 637                                         print_usage(prgname);
 638                                         return -1;
 639                                 }
 640                         }
 641
 642                         if (!strncmp(lgopts[option_index].name,
 643                                      CMD_LINE_OPT_PARSE_PTYPE,
 644                                      sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
 645                                 printf("soft parse-ptype is enabled\n");
 646                                 parse_ptype = 1;
 647                         }
 648
 649                         break;
 650
 651                 default:
 652                         print_usage(prgname);
 653                         return -1;
 654                 }
 655         }
 656
 657         /* If both LPM and EM are selected, return error. */
 658         if (l3fwd_lpm_on && l3fwd_em_on) {
 659                 printf("%s\n", str12);
 660                 return -1;
 661         }
 662
 663         /*
 664          * Nothing is selected, pick longest-prefix match
 665          * as default match.
 666          */
 667         if (!l3fwd_lpm_on && !l3fwd_em_on) {
 668                 l3fwd_lpm_on = 1;
 669                 printf("%s\n", str13);
 670         }
 671
 672         /*
 673          * ipv6 and hash flags are valid only for
 674          * exact macth, reset them to default for
 675          * longest-prefix match.
 676          */
 677         if (l3fwd_lpm_on) {
 678                 ipv6 = 0;
 679                 hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 680         }
 681
 682         if (optind >= 0)
 683                 argv[optind-1] = prgname;
 684
 685         ret = optind-1;
 686         optind = 0; /* reset getopt lib */
 687         return ret;
 688 }
 689
 690 static void
 691 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
 692 {
 693         char buf[ETHER_ADDR_FMT_SIZE];
 694         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
 695         printf("%s%s", name, buf);
 696 }
 697
 698 static int
 699 init_mem(unsigned nb_mbuf)
 700 {
 701         struct lcore_conf *qconf;
 702         int socketid;
 703         unsigned lcore_id;
 704         char s[64];
 705
 706         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 707                 if (rte_lcore_is_enabled(lcore_id) == 0)
 708                         continue;
 709
 710                 if (numa_on)
 711                         socketid = rte_lcore_to_socket_id(lcore_id);
 712                 else
 713                         socketid = 0;
 714
 715                 if (socketid >= NB_SOCKETS) {
 716                         rte_exit(EXIT_FAILURE,
 717                                 "Socket %d of lcore %u is out of range %d\n",
 718                                 socketid, lcore_id, NB_SOCKETS);
 719                 }
 720
 721                 if (pktmbuf_pool[socketid] == NULL) {
 722                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 723                         pktmbuf_pool[socketid] =
 724                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 725                                         MEMPOOL_CACHE_SIZE, 0,
 726                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 727                         if (pktmbuf_pool[socketid] == NULL)
 728                                 rte_exit(EXIT_FAILURE,
 729                                         "Cannot init mbuf pool on socket %d\n",
 730                                         socketid);
 731                         else
 732                                 printf("Allocated mbuf pool on socket %d\n",
 733                                         socketid);
 734
 735                         /* Setup either LPM or EM(f.e Hash).  */
 736                         l3fwd_lkp.setup(socketid);
 737                 }
 738                 qconf = &lcore_conf[lcore_id];
 739                 qconf->ipv4_lookup_struct =
 740                         l3fwd_lkp.get_ipv4_lookup_struct(socketid);
 741                 qconf->ipv6_lookup_struct =
 742                         l3fwd_lkp.get_ipv6_lookup_struct(socketid);
 743         }
 744         return 0;
 745 }
 746
 747 /* Check the link status of all ports in up to 9s, and print them finally */
 748 static void
 749 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 750 {
 751 #define CHECK_INTERVAL 100 /* 100ms */
 752 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 753         uint8_t portid, count, all_ports_up, print_flag = 0;
 754         struct rte_eth_link link;
 755
 756         printf("\nChecking link status");
 757         fflush(stdout);
 758         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 759                 if (force_quit)
 760                         return;
 761                 all_ports_up = 1;
 762                 for (portid = 0; portid < port_num; portid++) {
 763                         if (force_quit)
 764                                 return;
 765                         if ((port_mask & (1 << portid)) == 0)
 766                                 continue;
 767                         memset(&link, 0, sizeof(link));
 768                         rte_eth_link_get_nowait(portid, &link);
 769                         /* print link status if flag set */
 770                         if (print_flag == 1) {
 771                                 if (link.link_status)
 772                                         printf("Port %d Link Up - speed %u "
 773                                                 "Mbps - %s\n", (uint8_t)portid,
 774                                                 (unsigned)link.link_speed,
 775                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 776                                         ("full-duplex") : ("half-duplex\n"));
 777                                 else
 778                                         printf("Port %d Link Down\n",
 779                                                 (uint8_t)portid);
 780                                 continue;
 781                         }
 782                         /* clear all_ports_up flag if any link down */
 783                         if (link.link_status == ETH_LINK_DOWN) {
 784                                 all_ports_up = 0;
 785                                 break;
 786                         }
 787                 }
 788                 /* after finally printing all link status, get out */
 789                 if (print_flag == 1)
 790                         break;
 791
 792                 if (all_ports_up == 0) {
 793                         printf(".");
 794                         fflush(stdout);
 795                         rte_delay_ms(CHECK_INTERVAL);
 796                 }
 797
 798                 /* set the print_flag if all ports up or timeout */
 799                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 800                         print_flag = 1;
 801                         printf("done\n");
 802                 }
 803         }
 804 }
 805
 806 static void
 807 signal_handler(int signum)
 808 {
 809         if (signum == SIGINT || signum == SIGTERM) {
 810                 printf("\n\nSignal %d received, preparing to exit...\n",
 811                                 signum);
 812                 force_quit = true;
 813         }
 814 }
 815
 816 static int
 817 prepare_ptype_parser(uint8_t portid, uint16_t queueid)
 818 {
 819         if (parse_ptype) {
 820                 printf("Port %d: softly parse packet type info\n", portid);
 821                 if (rte_eth_add_rx_callback(portid, queueid,
 822                                             l3fwd_lkp.cb_parse_ptype,
 823                                             NULL))
 824                         return 1;
 825
 826                 printf("Failed to add rx callback: port=%d\n", portid);
 827                 return 0;
 828         }
 829
 830         if (l3fwd_lkp.check_ptype(portid))
 831                 return 1;
 832
 833         printf("port %d cannot parse packet type, please add --%s\n",
 834                portid, CMD_LINE_OPT_PARSE_PTYPE);
 835         return 0;
 836 }
 837
 838 int
 839 main(int argc, char **argv)
 840 {
 841         struct lcore_conf *qconf;
 842         struct rte_eth_dev_info dev_info;
 843         struct rte_eth_txconf *txconf;
 844         int ret;
 845         unsigned nb_ports;
 846         uint16_t queueid;
 847         unsigned lcore_id;
 848         uint32_t n_tx_queue, nb_lcores;
 849         uint8_t portid, nb_rx_queue, queue, socketid;
 850
 851         /* init EAL */
 852         ret = rte_eal_init(argc, argv);
 853         if (ret < 0)
 854                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
 855         argc -= ret;
 856         argv += ret;
 857
 858         force_quit = false;
 859         signal(SIGINT, signal_handler);
 860         signal(SIGTERM, signal_handler);
 861
 862         /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
 863         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 864                 dest_eth_addr[portid] =
 865                         ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
 866                 *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
 867         }
 868
 869         /* parse application arguments (after the EAL ones) */
 870         ret = parse_args(argc, argv);
 871         if (ret < 0)
 872                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
 873
 874         if (check_lcore_params() < 0)
 875                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
 876
 877         ret = init_lcore_rx_queues();
 878         if (ret < 0)
 879                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
 880
 881         nb_ports = rte_eth_dev_count();
 882
 883         if (check_port_config(nb_ports) < 0)
 884                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
 885
 886         nb_lcores = rte_lcore_count();
 887
 888         /* Setup function pointers for lookup method. */
 889         setup_l3fwd_lookup_tables();
 890
 891         /* initialize all ports */
 892         for (portid = 0; portid < nb_ports; portid++) {
 893                 /* skip ports that are not enabled */
 894                 if ((enabled_port_mask & (1 << portid)) == 0) {
 895                         printf("\nSkipping disabled port %d\n", portid);
 896                         continue;
 897                 }
 898
 899                 /* init port */
 900                 printf("Initializing port %d ... ", portid );
 901                 fflush(stdout);
 902
 903                 nb_rx_queue = get_port_n_rx_queues(portid);
 904                 n_tx_queue = nb_lcores;
 905                 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
 906                         n_tx_queue = MAX_TX_QUEUE_PER_PORT;
 907                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
 908                         nb_rx_queue, (unsigned)n_tx_queue );
 909                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 910                                         (uint16_t)n_tx_queue, &port_conf);
 911                 if (ret < 0)
 912                         rte_exit(EXIT_FAILURE,
 913                                 "Cannot configure device: err=%d, port=%d\n",
 914                                 ret, portid);
 915
 916                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 917                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
 918                 printf(", ");
 919                 print_ethaddr("Destination:",
 920                         (const struct ether_addr *)&dest_eth_addr[portid]);
 921                 printf(", ");
 922
 923                 /*
 924                  * prepare src MACs for each port.
 925                  */
 926                 ether_addr_copy(&ports_eth_addr[portid],
 927                         (struct ether_addr *)(val_eth + portid) + 1);
 928
 929                 /* init memory */
 930                 ret = init_mem(NB_MBUF);
 931                 if (ret < 0)
 932                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
 933
 934                 /* init one TX queue per couple (lcore,port) */
 935                 queueid = 0;
 936                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 937                         if (rte_lcore_is_enabled(lcore_id) == 0)
 938                                 continue;
 939
 940                         if (numa_on)
 941                                 socketid =
 942                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 943                         else
 944                                 socketid = 0;
 945
 946                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
 947                         fflush(stdout);
 948
 949                         rte_eth_dev_info_get(portid, &dev_info);
 950                         txconf = &dev_info.default_txconf;
 951                         if (port_conf.rxmode.jumbo_frame)
 952                                 txconf->txq_flags = 0;
 953                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
 954                                                      socketid, txconf);
 955                         if (ret < 0)
 956                                 rte_exit(EXIT_FAILURE,
 957                                         "rte_eth_tx_queue_setup: err=%d, "
 958                                         "port=%d\n", ret, portid);
 959
 960                         qconf = &lcore_conf[lcore_id];
 961                         qconf->tx_queue_id[portid] = queueid;
 962                         queueid++;
 963
 964                         qconf->tx_port_id[qconf->n_tx_port] = portid;
 965                         qconf->n_tx_port++;
 966                 }
 967                 printf("\n");
 968         }
 969
 970         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 971                 if (rte_lcore_is_enabled(lcore_id) == 0)
 972                         continue;
 973                 qconf = &lcore_conf[lcore_id];
 974                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
 975                 fflush(stdout);
 976                 /* init RX queues */
 977                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
 978                         portid = qconf->rx_queue_list[queue].port_id;
 979                         queueid = qconf->rx_queue_list[queue].queue_id;
 980
 981                         if (numa_on)
 982                                 socketid =
 983                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
 984                         else
 985                                 socketid = 0;
 986
 987                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
 988                         fflush(stdout);
 989
 990                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
 991                                         socketid,
 992                                         NULL,
 993                                         pktmbuf_pool[socketid]);
 994                         if (ret < 0)
 995                                 rte_exit(EXIT_FAILURE,
 996                                 "rte_eth_rx_queue_setup: err=%d, port=%d\n",
 997                                 ret, portid);
 998                 }
 999         }
1000
1001         printf("\n");
1002
1003         /* start ports */
1004         for (portid = 0; portid < nb_ports; portid++) {
1005                 if ((enabled_port_mask & (1 << portid)) == 0) {
1006                         continue;
1007                 }
1008                 /* Start device */
1009                 ret = rte_eth_dev_start(portid);
1010                 if (ret < 0)
1011                         rte_exit(EXIT_FAILURE,
1012                                 "rte_eth_dev_start: err=%d, port=%d\n",
1013                                 ret, portid);
1014
1015                 /*
1016                  * If enabled, put device in promiscuous mode.
1017                  * This allows IO forwarding mode to forward packets
1018                  * to itself through 2 cross-connected  ports of the
1019                  * target machine.
1020                  */
1021                 if (promiscuous_on)
1022                         rte_eth_promiscuous_enable(portid);
1023         }
1024
1025         printf("\n");
1026
1027         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1028                 if (rte_lcore_is_enabled(lcore_id) == 0)
1029                         continue;
1030                 qconf = &lcore_conf[lcore_id];
1031                 for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
1032                         portid = qconf->rx_queue_list[queue].port_id;
1033                         queueid = qconf->rx_queue_list[queue].queue_id;
1034                         if (prepare_ptype_parser(portid, queueid) == 0)
1035                                 rte_exit(EXIT_FAILURE, "ptype check fails\n");
1036                 }
1037         }
1038
1039
1040         check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
1041
1042         ret = 0;
1043         /* launch per-lcore init on every lcore */
1044         rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MASTER);
1045         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1046                 if (rte_eal_wait_lcore(lcore_id) < 0) {
1047                         ret = -1;
1048                         break;
1049                 }
1050         }
1051
1052         /* stop ports */
1053         for (portid = 0; portid < nb_ports; portid++) {
1054                 if ((enabled_port_mask & (1 << portid)) == 0)
1055                         continue;
1056                 printf("Closing port %d...", portid);
1057                 rte_eth_dev_stop(portid);
1058                 rte_eth_dev_close(portid);
1059                 printf(" Done\n");
1060         }
1061         printf("Bye...\n");
1062
1063         return ret;
1064 }