examples/l3fwd-power/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 <unistd.h>
  45 #include <signal.h>
  46
  47 #include <rte_common.h>
  48 #include <rte_byteorder.h>
  49 #include <rte_log.h>
  50 #include <rte_malloc.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_timer.h>
  76 #include <rte_power.h>
  77 #include <rte_eal.h>
  78 #include <rte_spinlock.h>
  79
  80 #define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
  81
  82 #define MAX_PKT_BURST 32
  83
  84 #define MIN_ZERO_POLL_COUNT 10
  85
  86 /* 100 ms interval */
  87 #define TIMER_NUMBER_PER_SECOND           10
  88 /* 100000 us */
  89 #define SCALING_PERIOD                    (1000000/TIMER_NUMBER_PER_SECOND)
  90 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
  91
  92 #define APP_LOOKUP_EXACT_MATCH          0
  93 #define APP_LOOKUP_LPM                  1
  94 #define DO_RFC_1812_CHECKS
  95
  96 #ifndef APP_LOOKUP_METHOD
  97 #define APP_LOOKUP_METHOD             APP_LOOKUP_LPM
  98 #endif
  99
 100 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 101 #include <rte_hash.h>
 102 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 103 #include <rte_lpm.h>
 104 #else
 105 #error "APP_LOOKUP_METHOD set to incorrect value"
 106 #endif
 107
 108 #ifndef IPv6_BYTES
 109 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
 110                        "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
 111 #define IPv6_BYTES(addr) \
 112         addr[0],  addr[1], addr[2],  addr[3], \
 113         addr[4],  addr[5], addr[6],  addr[7], \
 114         addr[8],  addr[9], addr[10], addr[11],\
 115         addr[12], addr[13],addr[14], addr[15]
 116 #endif
 117
 118 #define MAX_JUMBO_PKT_LEN  9600
 119
 120 #define IPV6_ADDR_LEN 16
 121
 122 #define MEMPOOL_CACHE_SIZE 256
 123
 124 /*
 125  * This expression is used to calculate the number of mbufs needed depending on
 126  * user input, taking into account memory for rx and tx hardware rings, cache
 127  * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
 128  * NB_MBUF never goes below a minimum value of 8192.
 129  */
 130
 131 #define NB_MBUF RTE_MAX ( \
 132         (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \
 133         nb_ports*nb_lcores*MAX_PKT_BURST + \
 134         nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \
 135         nb_lcores*MEMPOOL_CACHE_SIZE), \
 136         (unsigned)8192)
 137
 138 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 139
 140 #define NB_SOCKETS 8
 141
 142 /* Configure how many packets ahead to prefetch, when reading packets */
 143 #define PREFETCH_OFFSET 3
 144
 145 /*
 146  * Configurable number of RX/TX ring descriptors
 147  */
 148 #define RTE_TEST_RX_DESC_DEFAULT 512
 149 #define RTE_TEST_TX_DESC_DEFAULT 512
 150 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 151 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 152
 153 /* ethernet addresses of ports */
 154 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
 155
 156 /* ethernet addresses of ports */
 157 static rte_spinlock_t locks[RTE_MAX_ETHPORTS];
 158
 159 /* mask of enabled ports */
 160 static uint32_t enabled_port_mask = 0;
 161 /* Ports set in promiscuous mode off by default. */
 162 static int promiscuous_on = 0;
 163 /* NUMA is enabled by default. */
 164 static int numa_on = 1;
 165
 166 enum freq_scale_hint_t
 167 {
 168         FREQ_LOWER    =      -1,
 169         FREQ_CURRENT  =       0,
 170         FREQ_HIGHER   =       1,
 171         FREQ_HIGHEST  =       2
 172 };
 173
 174 struct lcore_rx_queue {
 175         uint8_t port_id;
 176         uint8_t queue_id;
 177         enum freq_scale_hint_t freq_up_hint;
 178         uint32_t zero_rx_packet_count;
 179         uint32_t idle_hint;
 180 } __rte_cache_aligned;
 181
 182 #define MAX_RX_QUEUE_PER_LCORE 16
 183 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
 184 #define MAX_RX_QUEUE_PER_PORT 128
 185
 186 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
 187
 188
 189 #define MAX_LCORE_PARAMS 1024
 190 struct lcore_params {
 191         uint8_t port_id;
 192         uint8_t queue_id;
 193         uint8_t lcore_id;
 194 } __rte_cache_aligned;
 195
 196 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 197 static struct lcore_params lcore_params_array_default[] = {
 198         {0, 0, 2},
 199         {0, 1, 2},
 200         {0, 2, 2},
 201         {1, 0, 2},
 202         {1, 1, 2},
 203         {1, 2, 2},
 204         {2, 0, 2},
 205         {3, 0, 3},
 206         {3, 1, 3},
 207 };
 208
 209 static struct lcore_params * lcore_params = lcore_params_array_default;
 210 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
 211                                 sizeof(lcore_params_array_default[0]);
 212
 213 static struct rte_eth_conf port_conf = {
 214         .rxmode = {
 215                 .mq_mode        = ETH_MQ_RX_RSS,
 216                 .max_rx_pkt_len = ETHER_MAX_LEN,
 217                 .split_hdr_size = 0,
 218                 .header_split   = 0, /**< Header Split disabled */
 219                 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
 220                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 221                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 222                 .hw_strip_crc   = 1, /**< CRC stripped by hardware */
 223         },
 224         .rx_adv_conf = {
 225                 .rss_conf = {
 226                         .rss_key = NULL,
 227                         .rss_hf = ETH_RSS_UDP,
 228                 },
 229         },
 230         .txmode = {
 231                 .mq_mode = ETH_MQ_TX_NONE,
 232         },
 233         .intr_conf = {
 234                 .lsc = 1,
 235                 .rxq = 1,
 236         },
 237 };
 238
 239 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 240
 241
 242 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 243
 244 #ifdef RTE_MACHINE_CPUFLAG_SSE4_2
 245 #include <rte_hash_crc.h>
 246 #define DEFAULT_HASH_FUNC       rte_hash_crc
 247 #else
 248 #include <rte_jhash.h>
 249 #define DEFAULT_HASH_FUNC       rte_jhash
 250 #endif
 251
 252 struct ipv4_5tuple {
 253         uint32_t ip_dst;
 254         uint32_t ip_src;
 255         uint16_t port_dst;
 256         uint16_t port_src;
 257         uint8_t  proto;
 258 } __attribute__((__packed__));
 259
 260 struct ipv6_5tuple {
 261         uint8_t  ip_dst[IPV6_ADDR_LEN];
 262         uint8_t  ip_src[IPV6_ADDR_LEN];
 263         uint16_t port_dst;
 264         uint16_t port_src;
 265         uint8_t  proto;
 266 } __attribute__((__packed__));
 267
 268 struct ipv4_l3fwd_route {
 269         struct ipv4_5tuple key;
 270         uint8_t if_out;
 271 };
 272
 273 struct ipv6_l3fwd_route {
 274         struct ipv6_5tuple key;
 275         uint8_t if_out;
 276 };
 277
 278 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 279         {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
 280         {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
 281         {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
 282         {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
 283 };
 284
 285 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
 286         {
 287                 {
 288                         {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 289                          0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
 290                         {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 291                          0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
 292                          1, 10, IPPROTO_UDP
 293                 }, 4
 294         },
 295 };
 296
 297 typedef struct rte_hash lookup_struct_t;
 298 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 299 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
 300
 301 #define L3FWD_HASH_ENTRIES      1024
 302
 303 #define IPV4_L3FWD_NUM_ROUTES \
 304         (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
 305
 306 #define IPV6_L3FWD_NUM_ROUTES \
 307         (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))
 308
 309 static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 310 static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 311 #endif
 312
 313 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 314 struct ipv4_l3fwd_route {
 315         uint32_t ip;
 316         uint8_t  depth;
 317         uint8_t  if_out;
 318 };
 319
 320 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 321         {IPv4(1,1,1,0), 24, 0},
 322         {IPv4(2,1,1,0), 24, 1},
 323         {IPv4(3,1,1,0), 24, 2},
 324         {IPv4(4,1,1,0), 24, 3},
 325         {IPv4(5,1,1,0), 24, 4},
 326         {IPv4(6,1,1,0), 24, 5},
 327         {IPv4(7,1,1,0), 24, 6},
 328         {IPv4(8,1,1,0), 24, 7},
 329 };
 330
 331 #define IPV4_L3FWD_NUM_ROUTES \
 332         (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
 333
 334 #define IPV4_L3FWD_LPM_MAX_RULES     1024
 335
 336 typedef struct rte_lpm lookup_struct_t;
 337 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 338 #endif
 339
 340 struct lcore_conf {
 341         uint16_t n_rx_queue;
 342         struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 343         uint16_t n_tx_port;
 344         uint16_t tx_port_id[RTE_MAX_ETHPORTS];
 345         uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
 346         struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 347         lookup_struct_t * ipv4_lookup_struct;
 348         lookup_struct_t * ipv6_lookup_struct;
 349 } __rte_cache_aligned;
 350
 351 struct lcore_stats {
 352         /* total sleep time in ms since last frequency scaling down */
 353         uint32_t sleep_time;
 354         /* number of long sleep recently */
 355         uint32_t nb_long_sleep;
 356         /* freq. scaling up trend */
 357         uint32_t trend;
 358         /* total packet processed recently */
 359         uint64_t nb_rx_processed;
 360         /* total iterations looped recently */
 361         uint64_t nb_iteration_looped;
 362         uint32_t padding[9];
 363 } __rte_cache_aligned;
 364
 365 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
 366 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
 367 static struct rte_timer power_timers[RTE_MAX_LCORE];
 368
 369 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
 370 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
 371                         unsigned lcore_id, uint8_t port_id, uint16_t queue_id);
 372
 373 /* exit signal handler */
 374 static void
 375 signal_exit_now(int sigtype)
 376 {
 377         unsigned lcore_id;
 378         int ret;
 379
 380         if (sigtype == SIGINT) {
 381                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 382                         if (rte_lcore_is_enabled(lcore_id) == 0)
 383                                 continue;
 384
 385                         /* init power management library */
 386                         ret = rte_power_exit(lcore_id);
 387                         if (ret)
 388                                 rte_exit(EXIT_FAILURE, "Power management "
 389                                         "library de-initialization failed on "
 390                                                         "core%u\n", lcore_id);
 391                 }
 392         }
 393
 394         rte_exit(EXIT_SUCCESS, "User forced exit\n");
 395 }
 396
 397 /*  Freqency scale down timer callback */
 398 static void
 399 power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
 400                           __attribute__((unused)) void *arg)
 401 {
 402         uint64_t hz;
 403         float sleep_time_ratio;
 404         unsigned lcore_id = rte_lcore_id();
 405
 406         /* accumulate total execution time in us when callback is invoked */
 407         sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
 408                                         (float)SCALING_PERIOD;
 409         /**
 410          * check whether need to scale down frequency a step if it sleep a lot.
 411          */
 412         if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
 413                 if (rte_power_freq_down)
 414                         rte_power_freq_down(lcore_id);
 415         }
 416         else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
 417                 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
 418                 /**
 419                  * scale down a step if average packet per iteration less
 420                  * than expectation.
 421                  */
 422                 if (rte_power_freq_down)
 423                         rte_power_freq_down(lcore_id);
 424         }
 425
 426         /**
 427          * initialize another timer according to current frequency to ensure
 428          * timer interval is relatively fixed.
 429          */
 430         hz = rte_get_timer_hz();
 431         rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
 432                                 SINGLE, lcore_id, power_timer_cb, NULL);
 433
 434         stats[lcore_id].nb_rx_processed = 0;
 435         stats[lcore_id].nb_iteration_looped = 0;
 436
 437         stats[lcore_id].sleep_time = 0;
 438 }
 439
 440 /* Enqueue a single packet, and send burst if queue is filled */
 441 static inline int
 442 send_single_packet(struct rte_mbuf *m, uint8_t port)
 443 {
 444         uint32_t lcore_id;
 445         struct lcore_conf *qconf;
 446
 447         lcore_id = rte_lcore_id();
 448         qconf = &lcore_conf[lcore_id];
 449
 450         rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
 451                         qconf->tx_buffer[port], m);
 452
 453         return 0;
 454 }
 455
 456 #ifdef DO_RFC_1812_CHECKS
 457 static inline int
 458 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
 459 {
 460         /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
 461         /*
 462          * 1. The packet length reported by the Link Layer must be large
 463          * enough to hold the minimum length legal IP datagram (20 bytes).
 464          */
 465         if (link_len < sizeof(struct ipv4_hdr))
 466                 return -1;
 467
 468         /* 2. The IP checksum must be correct. */
 469         /* this is checked in H/W */
 470
 471         /*
 472          * 3. The IP version number must be 4. If the version number is not 4
 473          * then the packet may be another version of IP, such as IPng or
 474          * ST-II.
 475          */
 476         if (((pkt->version_ihl) >> 4) != 4)
 477                 return -3;
 478         /*
 479          * 4. The IP header length field must be large enough to hold the
 480          * minimum length legal IP datagram (20 bytes = 5 words).
 481          */
 482         if ((pkt->version_ihl & 0xf) < 5)
 483                 return -4;
 484
 485         /*
 486          * 5. The IP total length field must be large enough to hold the IP
 487          * datagram header, whose length is specified in the IP header length
 488          * field.
 489          */
 490         if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
 491                 return -5;
 492
 493         return 0;
 494 }
 495 #endif
 496
 497 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 498 static void
 499 print_ipv4_key(struct ipv4_5tuple key)
 500 {
 501         printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
 502                 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
 503                                 key.port_dst, key.port_src, key.proto);
 504 }
 505 static void
 506 print_ipv6_key(struct ipv6_5tuple key)
 507 {
 508         printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
 509                 "port dst = %d, port src = %d, proto = %d\n",
 510                 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
 511                 key.port_dst, key.port_src, key.proto);
 512 }
 513
 514 static inline uint8_t
 515 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
 516                 lookup_struct_t * ipv4_l3fwd_lookup_struct)
 517 {
 518         struct ipv4_5tuple key;
 519         struct tcp_hdr *tcp;
 520         struct udp_hdr *udp;
 521         int ret = 0;
 522
 523         key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
 524         key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
 525         key.proto = ipv4_hdr->next_proto_id;
 526
 527         switch (ipv4_hdr->next_proto_id) {
 528         case IPPROTO_TCP:
 529                 tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr +
 530                                         sizeof(struct ipv4_hdr));
 531                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 532                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 533                 break;
 534
 535         case IPPROTO_UDP:
 536                 udp = (struct udp_hdr *)((unsigned char *)ipv4_hdr +
 537                                         sizeof(struct ipv4_hdr));
 538                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 539                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 540                 break;
 541
 542         default:
 543                 key.port_dst = 0;
 544                 key.port_src = 0;
 545                 break;
 546         }
 547
 548         /* Find destination port */
 549         ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
 550         return (uint8_t)((ret < 0)? portid : ipv4_l3fwd_out_if[ret]);
 551 }
 552
 553 static inline uint8_t
 554 get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr,  uint8_t portid,
 555                         lookup_struct_t *ipv6_l3fwd_lookup_struct)
 556 {
 557         struct ipv6_5tuple key;
 558         struct tcp_hdr *tcp;
 559         struct udp_hdr *udp;
 560         int ret = 0;
 561
 562         memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
 563         memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
 564
 565         key.proto = ipv6_hdr->proto;
 566
 567         switch (ipv6_hdr->proto) {
 568         case IPPROTO_TCP:
 569                 tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr +
 570                                         sizeof(struct ipv6_hdr));
 571                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 572                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 573                 break;
 574
 575         case IPPROTO_UDP:
 576                 udp = (struct udp_hdr *)((unsigned char *) ipv6_hdr +
 577                                         sizeof(struct ipv6_hdr));
 578                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 579                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 580                 break;
 581
 582         default:
 583                 key.port_dst = 0;
 584                 key.port_src = 0;
 585                 break;
 586         }
 587
 588         /* Find destination port */
 589         ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
 590         return (uint8_t)((ret < 0)? portid : ipv6_l3fwd_out_if[ret]);
 591 }
 592 #endif
 593
 594 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 595 static inline uint8_t
 596 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
 597                 lookup_struct_t *ipv4_l3fwd_lookup_struct)
 598 {
 599         uint32_t next_hop;
 600
 601         return (uint8_t) ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
 602                         rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
 603                         next_hop : portid);
 604 }
 605 #endif
 606
 607 static inline void
 608 l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
 609                                 struct lcore_conf *qconf)
 610 {
 611         struct ether_hdr *eth_hdr;
 612         struct ipv4_hdr *ipv4_hdr;
 613         void *d_addr_bytes;
 614         uint8_t dst_port;
 615
 616         eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
 617
 618         if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
 619                 /* Handle IPv4 headers.*/
 620                 ipv4_hdr =
 621                         rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
 622                                                 sizeof(struct ether_hdr));
 623
 624 #ifdef DO_RFC_1812_CHECKS
 625                 /* Check to make sure the packet is valid (RFC1812) */
 626                 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
 627                         rte_pktmbuf_free(m);
 628                         return;
 629                 }
 630 #endif
 631
 632                 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
 633                                         qconf->ipv4_lookup_struct);
 634                 if (dst_port >= RTE_MAX_ETHPORTS ||
 635                                 (enabled_port_mask & 1 << dst_port) == 0)
 636                         dst_port = portid;
 637
 638                 /* 02:00:00:00:00:xx */
 639                 d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
 640                 *((uint64_t *)d_addr_bytes) =
 641                         0x000000000002 + ((uint64_t)dst_port << 40);
 642
 643 #ifdef DO_RFC_1812_CHECKS
 644                 /* Update time to live and header checksum */
 645                 --(ipv4_hdr->time_to_live);
 646                 ++(ipv4_hdr->hdr_checksum);
 647 #endif
 648
 649                 /* src addr */
 650                 ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
 651
 652                 send_single_packet(m, dst_port);
 653         } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
 654                 /* Handle IPv6 headers.*/
 655 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 656                 struct ipv6_hdr *ipv6_hdr;
 657
 658                 ipv6_hdr =
 659                         rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
 660                                                 sizeof(struct ether_hdr));
 661
 662                 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
 663                                         qconf->ipv6_lookup_struct);
 664
 665                 if (dst_port >= RTE_MAX_ETHPORTS ||
 666                                 (enabled_port_mask & 1 << dst_port) == 0)
 667                         dst_port = portid;
 668
 669                 /* 02:00:00:00:00:xx */
 670                 d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
 671                 *((uint64_t *)d_addr_bytes) =
 672                         0x000000000002 + ((uint64_t)dst_port << 40);
 673
 674                 /* src addr */
 675                 ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
 676
 677                 send_single_packet(m, dst_port);
 678 #else
 679                 /* We don't currently handle IPv6 packets in LPM mode. */
 680                 rte_pktmbuf_free(m);
 681 #endif
 682         } else
 683                 rte_pktmbuf_free(m);
 684
 685 }
 686
 687 #define MINIMUM_SLEEP_TIME         1
 688 #define SUSPEND_THRESHOLD          300
 689
 690 static inline uint32_t
 691 power_idle_heuristic(uint32_t zero_rx_packet_count)
 692 {
 693         /* If zero count is less than 100,  sleep 1us */
 694         if (zero_rx_packet_count < SUSPEND_THRESHOLD)
 695                 return MINIMUM_SLEEP_TIME;
 696         /* If zero count is less than 1000, sleep 100 us which is the
 697                 minimum latency switching from C3/C6 to C0
 698         */
 699         else
 700                 return SUSPEND_THRESHOLD;
 701
 702         return 0;
 703 }
 704
 705 static inline enum freq_scale_hint_t
 706 power_freq_scaleup_heuristic(unsigned lcore_id,
 707                              uint8_t port_id,
 708                              uint16_t queue_id)
 709 {
 710 /**
 711  * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
 712  * per iteration
 713  */
 714 #define FREQ_GEAR1_RX_PACKET_THRESHOLD             MAX_PKT_BURST
 715 #define FREQ_GEAR2_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*2)
 716 #define FREQ_GEAR3_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*3)
 717 #define FREQ_UP_TREND1_ACC   1
 718 #define FREQ_UP_TREND2_ACC   100
 719 #define FREQ_UP_THRESHOLD    10000
 720
 721         if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
 722                         FREQ_GEAR3_RX_PACKET_THRESHOLD) > 0)) {
 723                 stats[lcore_id].trend = 0;
 724                 return FREQ_HIGHEST;
 725         } else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
 726                         FREQ_GEAR2_RX_PACKET_THRESHOLD) > 0))
 727                 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
 728         else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
 729                         FREQ_GEAR1_RX_PACKET_THRESHOLD) > 0))
 730                 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
 731
 732         if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
 733                 stats[lcore_id].trend = 0;
 734                 return FREQ_HIGHER;
 735         }
 736
 737         return FREQ_CURRENT;
 738 }
 739
 740 /**
 741  * force polling thread sleep until one-shot rx interrupt triggers
 742  * @param port_id
 743  *  Port id.
 744  * @param queue_id
 745  *  Rx queue id.
 746  * @return
 747  *  0 on success
 748  */
 749 static int
 750 sleep_until_rx_interrupt(int num)
 751 {
 752         struct rte_epoll_event event[num];
 753         int n, i;
 754         uint8_t port_id, queue_id;
 755         void *data;
 756
 757         RTE_LOG(INFO, L3FWD_POWER,
 758                 "lcore %u sleeps until interrupt triggers\n",
 759                 rte_lcore_id());
 760
 761         n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1);
 762         for (i = 0; i < n; i++) {
 763                 data = event[i].epdata.data;
 764                 port_id = ((uintptr_t)data) >> CHAR_BIT;
 765                 queue_id = ((uintptr_t)data) &
 766                         RTE_LEN2MASK(CHAR_BIT, uint8_t);
 767                 rte_eth_dev_rx_intr_disable(port_id, queue_id);
 768                 RTE_LOG(INFO, L3FWD_POWER,
 769                         "lcore %u is waked up from rx interrupt on"
 770                         " port %d queue %d\n",
 771                         rte_lcore_id(), port_id, queue_id);
 772         }
 773
 774         return 0;
 775 }
 776
 777 static void turn_on_intr(struct lcore_conf *qconf)
 778 {
 779         int i;
 780         struct lcore_rx_queue *rx_queue;
 781         uint8_t port_id, queue_id;
 782
 783         for (i = 0; i < qconf->n_rx_queue; ++i) {
 784                 rx_queue = &(qconf->rx_queue_list[i]);
 785                 port_id = rx_queue->port_id;
 786                 queue_id = rx_queue->queue_id;
 787
 788                 rte_spinlock_lock(&(locks[port_id]));
 789                 rte_eth_dev_rx_intr_enable(port_id, queue_id);
 790                 rte_spinlock_unlock(&(locks[port_id]));
 791         }
 792 }
 793
 794 static int event_register(struct lcore_conf *qconf)
 795 {
 796         struct lcore_rx_queue *rx_queue;
 797         uint8_t portid, queueid;
 798         uint32_t data;
 799         int ret;
 800         int i;
 801
 802         for (i = 0; i < qconf->n_rx_queue; ++i) {
 803                 rx_queue = &(qconf->rx_queue_list[i]);
 804                 portid = rx_queue->port_id;
 805                 queueid = rx_queue->queue_id;
 806                 data = portid << CHAR_BIT | queueid;
 807
 808                 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
 809                                                 RTE_EPOLL_PER_THREAD,
 810                                                 RTE_INTR_EVENT_ADD,
 811                                                 (void *)((uintptr_t)data));
 812                 if (ret)
 813                         return ret;
 814         }
 815
 816         return 0;
 817 }
 818
 819 /* main processing loop */
 820 static int
 821 main_loop(__attribute__((unused)) void *dummy)
 822 {
 823         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 824         unsigned lcore_id;
 825         uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
 826         uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
 827         int i, j, nb_rx;
 828         uint8_t portid, queueid;
 829         struct lcore_conf *qconf;
 830         struct lcore_rx_queue *rx_queue;
 831         enum freq_scale_hint_t lcore_scaleup_hint;
 832         uint32_t lcore_rx_idle_count = 0;
 833         uint32_t lcore_idle_hint = 0;
 834         int intr_en = 0;
 835
 836         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
 837
 838         prev_tsc = 0;
 839         hz = rte_get_timer_hz();
 840         tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
 841
 842         lcore_id = rte_lcore_id();
 843         qconf = &lcore_conf[lcore_id];
 844
 845         if (qconf->n_rx_queue == 0) {
 846                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
 847                 return 0;
 848         }
 849
 850         RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
 851
 852         for (i = 0; i < qconf->n_rx_queue; i++) {
 853                 portid = qconf->rx_queue_list[i].port_id;
 854                 queueid = qconf->rx_queue_list[i].queue_id;
 855                 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%hhu "
 856                         "rxqueueid=%hhu\n", lcore_id, portid, queueid);
 857         }
 858
 859         /* add into event wait list */
 860         if (event_register(qconf) == 0)
 861                 intr_en = 1;
 862         else
 863                 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
 864
 865         while (1) {
 866                 stats[lcore_id].nb_iteration_looped++;
 867
 868                 cur_tsc = rte_rdtsc();
 869                 cur_tsc_power = cur_tsc;
 870
 871                 /*
 872                  * TX burst queue drain
 873                  */
 874                 diff_tsc = cur_tsc - prev_tsc;
 875                 if (unlikely(diff_tsc > drain_tsc)) {
 876                         for (i = 0; i < qconf->n_tx_port; ++i) {
 877                                 portid = qconf->tx_port_id[i];
 878                                 rte_eth_tx_buffer_flush(portid,
 879                                                 qconf->tx_queue_id[portid],
 880                                                 qconf->tx_buffer[portid]);
 881                         }
 882                         prev_tsc = cur_tsc;
 883                 }
 884
 885                 diff_tsc_power = cur_tsc_power - prev_tsc_power;
 886                 if (diff_tsc_power > tim_res_tsc) {
 887                         rte_timer_manage();
 888                         prev_tsc_power = cur_tsc_power;
 889                 }
 890
 891 start_rx:
 892                 /*
 893                  * Read packet from RX queues
 894                  */
 895                 lcore_scaleup_hint = FREQ_CURRENT;
 896                 lcore_rx_idle_count = 0;
 897                 for (i = 0; i < qconf->n_rx_queue; ++i) {
 898                         rx_queue = &(qconf->rx_queue_list[i]);
 899                         rx_queue->idle_hint = 0;
 900                         portid = rx_queue->port_id;
 901                         queueid = rx_queue->queue_id;
 902
 903                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
 904                                                                 MAX_PKT_BURST);
 905
 906                         stats[lcore_id].nb_rx_processed += nb_rx;
 907                         if (unlikely(nb_rx == 0)) {
 908                                 /**
 909                                  * no packet received from rx queue, try to
 910                                  * sleep for a while forcing CPU enter deeper
 911                                  * C states.
 912                                  */
 913                                 rx_queue->zero_rx_packet_count++;
 914
 915                                 if (rx_queue->zero_rx_packet_count <=
 916                                                         MIN_ZERO_POLL_COUNT)
 917                                         continue;
 918
 919                                 rx_queue->idle_hint = power_idle_heuristic(\
 920                                         rx_queue->zero_rx_packet_count);
 921                                 lcore_rx_idle_count++;
 922                         } else {
 923                                 rx_queue->zero_rx_packet_count = 0;
 924
 925                                 /**
 926                                  * do not scale up frequency immediately as
 927                                  * user to kernel space communication is costly
 928                                  * which might impact packet I/O for received
 929                                  * packets.
 930                                  */
 931                                 rx_queue->freq_up_hint =
 932                                         power_freq_scaleup_heuristic(lcore_id,
 933                                                         portid, queueid);
 934                         }
 935
 936                         /* Prefetch first packets */
 937                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
 938                                 rte_prefetch0(rte_pktmbuf_mtod(
 939                                                 pkts_burst[j], void *));
 940                         }
 941
 942                         /* Prefetch and forward already prefetched packets */
 943                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
 944                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
 945                                                 j + PREFETCH_OFFSET], void *));
 946                                 l3fwd_simple_forward(pkts_burst[j], portid,
 947                                                                 qconf);
 948                         }
 949
 950                         /* Forward remaining prefetched packets */
 951                         for (; j < nb_rx; j++) {
 952                                 l3fwd_simple_forward(pkts_burst[j], portid,
 953                                                                 qconf);
 954                         }
 955                 }
 956
 957                 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
 958                         for (i = 1, lcore_scaleup_hint =
 959                                 qconf->rx_queue_list[0].freq_up_hint;
 960                                         i < qconf->n_rx_queue; ++i) {
 961                                 rx_queue = &(qconf->rx_queue_list[i]);
 962                                 if (rx_queue->freq_up_hint >
 963                                                 lcore_scaleup_hint)
 964                                         lcore_scaleup_hint =
 965                                                 rx_queue->freq_up_hint;
 966                         }
 967
 968                         if (lcore_scaleup_hint == FREQ_HIGHEST) {
 969                                 if (rte_power_freq_max)
 970                                         rte_power_freq_max(lcore_id);
 971                         } else if (lcore_scaleup_hint == FREQ_HIGHER) {
 972                                 if (rte_power_freq_up)
 973                                         rte_power_freq_up(lcore_id);
 974                         }
 975                 } else {
 976                         /**
 977                          * All Rx queues empty in recent consecutive polls,
 978                          * sleep in a conservative manner, meaning sleep as
 979                          * less as possible.
 980                          */
 981                         for (i = 1, lcore_idle_hint =
 982                                 qconf->rx_queue_list[0].idle_hint;
 983                                         i < qconf->n_rx_queue; ++i) {
 984                                 rx_queue = &(qconf->rx_queue_list[i]);
 985                                 if (rx_queue->idle_hint < lcore_idle_hint)
 986                                         lcore_idle_hint = rx_queue->idle_hint;
 987                         }
 988
 989                         if (lcore_idle_hint < SUSPEND_THRESHOLD)
 990                                 /**
 991                                  * execute "pause" instruction to avoid context
 992                                  * switch which generally take hundred of
 993                                  * microseconds for short sleep.
 994                                  */
 995                                 rte_delay_us(lcore_idle_hint);
 996                         else {
 997                                 /* suspend until rx interrupt trigges */
 998                                 if (intr_en) {
 999                                         turn_on_intr(qconf);
1000                                         sleep_until_rx_interrupt(
1001                                                 qconf->n_rx_queue);
1002                                         /**
1003                                          * start receiving packets immediately
1004                                          */
1005                                         goto start_rx;
1006                                 }
1007                         }
1008                         stats[lcore_id].sleep_time += lcore_idle_hint;
1009                 }
1010         }
1011 }
1012
1013 static int
1014 check_lcore_params(void)
1015 {
1016         uint8_t queue, lcore;
1017         uint16_t i;
1018         int socketid;
1019
1020         for (i = 0; i < nb_lcore_params; ++i) {
1021                 queue = lcore_params[i].queue_id;
1022                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1023                         printf("invalid queue number: %hhu\n", queue);
1024                         return -1;
1025                 }
1026                 lcore = lcore_params[i].lcore_id;
1027                 if (!rte_lcore_is_enabled(lcore)) {
1028                         printf("error: lcore %hhu is not enabled in lcore "
1029                                                         "mask\n", lcore);
1030                         return -1;
1031                 }
1032                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1033                                                         (numa_on == 0)) {
1034                         printf("warning: lcore %hhu is on socket %d with numa "
1035                                                 "off\n", lcore, socketid);
1036                 }
1037         }
1038         return 0;
1039 }
1040
1041 static int
1042 check_port_config(const unsigned nb_ports)
1043 {
1044         unsigned portid;
1045         uint16_t i;
1046
1047         for (i = 0; i < nb_lcore_params; ++i) {
1048                 portid = lcore_params[i].port_id;
1049                 if ((enabled_port_mask & (1 << portid)) == 0) {
1050                         printf("port %u is not enabled in port mask\n",
1051                                                                 portid);
1052                         return -1;
1053                 }
1054                 if (portid >= nb_ports) {
1055                         printf("port %u is not present on the board\n",
1056                                                                 portid);
1057                         return -1;
1058                 }
1059         }
1060         return 0;
1061 }
1062
1063 static uint8_t
1064 get_port_n_rx_queues(const uint8_t port)
1065 {
1066         int queue = -1;
1067         uint16_t i;
1068
1069         for (i = 0; i < nb_lcore_params; ++i) {
1070                 if (lcore_params[i].port_id == port &&
1071                                 lcore_params[i].queue_id > queue)
1072                         queue = lcore_params[i].queue_id;
1073         }
1074         return (uint8_t)(++queue);
1075 }
1076
1077 static int
1078 init_lcore_rx_queues(void)
1079 {
1080         uint16_t i, nb_rx_queue;
1081         uint8_t lcore;
1082
1083         for (i = 0; i < nb_lcore_params; ++i) {
1084                 lcore = lcore_params[i].lcore_id;
1085                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1086                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1087                         printf("error: too many queues (%u) for lcore: %u\n",
1088                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1089                         return -1;
1090                 } else {
1091                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1092                                 lcore_params[i].port_id;
1093                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1094                                 lcore_params[i].queue_id;
1095                         lcore_conf[lcore].n_rx_queue++;
1096                 }
1097         }
1098         return 0;
1099 }
1100
1101 /* display usage */
1102 static void
1103 print_usage(const char *prgname)
1104 {
1105         printf ("%s [EAL options] -- -p PORTMASK -P"
1106                 "  [--config (port,queue,lcore)[,(port,queue,lcore]]"
1107                 "  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
1108                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1109                 "  -P : enable promiscuous mode\n"
1110                 "  --config (port,queue,lcore): rx queues configuration\n"
1111                 "  --no-numa: optional, disable numa awareness\n"
1112                 "  --enable-jumbo: enable jumbo frame"
1113                 " which max packet len is PKTLEN in decimal (64-9600)\n",
1114                 prgname);
1115 }
1116
1117 static int parse_max_pkt_len(const char *pktlen)
1118 {
1119         char *end = NULL;
1120         unsigned long len;
1121
1122         /* parse decimal string */
1123         len = strtoul(pktlen, &end, 10);
1124         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1125                 return -1;
1126
1127         if (len == 0)
1128                 return -1;
1129
1130         return len;
1131 }
1132
1133 static int
1134 parse_portmask(const char *portmask)
1135 {
1136         char *end = NULL;
1137         unsigned long pm;
1138
1139         /* parse hexadecimal string */
1140         pm = strtoul(portmask, &end, 16);
1141         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1142                 return -1;
1143
1144         if (pm == 0)
1145                 return -1;
1146
1147         return pm;
1148 }
1149
1150 static int
1151 parse_config(const char *q_arg)
1152 {
1153         char s[256];
1154         const char *p, *p0 = q_arg;
1155         char *end;
1156         enum fieldnames {
1157                 FLD_PORT = 0,
1158                 FLD_QUEUE,
1159                 FLD_LCORE,
1160                 _NUM_FLD
1161         };
1162         unsigned long int_fld[_NUM_FLD];
1163         char *str_fld[_NUM_FLD];
1164         int i;
1165         unsigned size;
1166
1167         nb_lcore_params = 0;
1168
1169         while ((p = strchr(p0,'(')) != NULL) {
1170                 ++p;
1171                 if((p0 = strchr(p,')')) == NULL)
1172                         return -1;
1173
1174                 size = p0 - p;
1175                 if(size >= sizeof(s))
1176                         return -1;
1177
1178                 snprintf(s, sizeof(s), "%.*s", size, p);
1179                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1180                                                                 _NUM_FLD)
1181                         return -1;
1182                 for (i = 0; i < _NUM_FLD; i++){
1183                         errno = 0;
1184                         int_fld[i] = strtoul(str_fld[i], &end, 0);
1185                         if (errno != 0 || end == str_fld[i] || int_fld[i] >
1186                                                                         255)
1187                                 return -1;
1188                 }
1189                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1190                         printf("exceeded max number of lcore params: %hu\n",
1191                                 nb_lcore_params);
1192                         return -1;
1193                 }
1194                 lcore_params_array[nb_lcore_params].port_id =
1195                                 (uint8_t)int_fld[FLD_PORT];
1196                 lcore_params_array[nb_lcore_params].queue_id =
1197                                 (uint8_t)int_fld[FLD_QUEUE];
1198                 lcore_params_array[nb_lcore_params].lcore_id =
1199                                 (uint8_t)int_fld[FLD_LCORE];
1200                 ++nb_lcore_params;
1201         }
1202         lcore_params = lcore_params_array;
1203
1204         return 0;
1205 }
1206
1207 /* Parse the argument given in the command line of the application */
1208 static int
1209 parse_args(int argc, char **argv)
1210 {
1211         int opt, ret;
1212         char **argvopt;
1213         int option_index;
1214         char *prgname = argv[0];
1215         static struct option lgopts[] = {
1216                 {"config", 1, 0, 0},
1217                 {"no-numa", 0, 0, 0},
1218                 {"enable-jumbo", 0, 0, 0},
1219                 {NULL, 0, 0, 0}
1220         };
1221
1222         argvopt = argv;
1223
1224         while ((opt = getopt_long(argc, argvopt, "p:P",
1225                                 lgopts, &option_index)) != EOF) {
1226
1227                 switch (opt) {
1228                 /* portmask */
1229                 case 'p':
1230                         enabled_port_mask = parse_portmask(optarg);
1231                         if (enabled_port_mask == 0) {
1232                                 printf("invalid portmask\n");
1233                                 print_usage(prgname);
1234                                 return -1;
1235                         }
1236                         break;
1237                 case 'P':
1238                         printf("Promiscuous mode selected\n");
1239                         promiscuous_on = 1;
1240                         break;
1241
1242                 /* long options */
1243                 case 0:
1244                         if (!strncmp(lgopts[option_index].name, "config", 6)) {
1245                                 ret = parse_config(optarg);
1246                                 if (ret) {
1247                                         printf("invalid config\n");
1248                                         print_usage(prgname);
1249                                         return -1;
1250                                 }
1251                         }
1252
1253                         if (!strncmp(lgopts[option_index].name,
1254                                                 "no-numa", 7)) {
1255                                 printf("numa is disabled \n");
1256                                 numa_on = 0;
1257                         }
1258
1259                         if (!strncmp(lgopts[option_index].name,
1260                                         "enable-jumbo", 12)) {
1261                                 struct option lenopts =
1262                                         {"max-pkt-len", required_argument, \
1263                                                                         0, 0};
1264
1265                                 printf("jumbo frame is enabled \n");
1266                                 port_conf.rxmode.jumbo_frame = 1;
1267
1268                                 /**
1269                                  * if no max-pkt-len set, use the default value
1270                                  * ETHER_MAX_LEN
1271                                  */
1272                                 if (0 == getopt_long(argc, argvopt, "",
1273                                                 &lenopts, &option_index)) {
1274                                         ret = parse_max_pkt_len(optarg);
1275                                         if ((ret < 64) ||
1276                                                 (ret > MAX_JUMBO_PKT_LEN)){
1277                                                 printf("invalid packet "
1278                                                                 "length\n");
1279                                                 print_usage(prgname);
1280                                                 return -1;
1281                                         }
1282                                         port_conf.rxmode.max_rx_pkt_len = ret;
1283                                 }
1284                                 printf("set jumbo frame "
1285                                         "max packet length to %u\n",
1286                                 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
1287                         }
1288
1289                         break;
1290
1291                 default:
1292                         print_usage(prgname);
1293                         return -1;
1294                 }
1295         }
1296
1297         if (optind >= 0)
1298                 argv[optind-1] = prgname;
1299
1300         ret = optind-1;
1301         optind = 0; /* reset getopt lib */
1302         return ret;
1303 }
1304
1305 static void
1306 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
1307 {
1308         char buf[ETHER_ADDR_FMT_SIZE];
1309         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
1310         printf("%s%s", name, buf);
1311 }
1312
1313 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1314 static void
1315 setup_hash(int socketid)
1316 {
1317         struct rte_hash_parameters ipv4_l3fwd_hash_params = {
1318                 .name = NULL,
1319                 .entries = L3FWD_HASH_ENTRIES,
1320                 .key_len = sizeof(struct ipv4_5tuple),
1321                 .hash_func = DEFAULT_HASH_FUNC,
1322                 .hash_func_init_val = 0,
1323         };
1324
1325         struct rte_hash_parameters ipv6_l3fwd_hash_params = {
1326                 .name = NULL,
1327                 .entries = L3FWD_HASH_ENTRIES,
1328                 .key_len = sizeof(struct ipv6_5tuple),
1329                 .hash_func = DEFAULT_HASH_FUNC,
1330                 .hash_func_init_val = 0,
1331         };
1332
1333         unsigned i;
1334         int ret;
1335         char s[64];
1336
1337         /* create ipv4 hash */
1338         snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
1339         ipv4_l3fwd_hash_params.name = s;
1340         ipv4_l3fwd_hash_params.socket_id = socketid;
1341         ipv4_l3fwd_lookup_struct[socketid] =
1342                 rte_hash_create(&ipv4_l3fwd_hash_params);
1343         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1344                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1345                                 "socket %d\n", socketid);
1346
1347         /* create ipv6 hash */
1348         snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
1349         ipv6_l3fwd_hash_params.name = s;
1350         ipv6_l3fwd_hash_params.socket_id = socketid;
1351         ipv6_l3fwd_lookup_struct[socketid] =
1352                 rte_hash_create(&ipv6_l3fwd_hash_params);
1353         if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
1354                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1355                                 "socket %d\n", socketid);
1356
1357
1358         /* populate the ipv4 hash */
1359         for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1360                 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
1361                                 (void *) &ipv4_l3fwd_route_array[i].key);
1362                 if (ret < 0) {
1363                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1364                                 "l3fwd hash on socket %d\n", i, socketid);
1365                 }
1366                 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
1367                 printf("Hash: Adding key\n");
1368                 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
1369         }
1370
1371         /* populate the ipv6 hash */
1372         for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
1373                 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
1374                                 (void *) &ipv6_l3fwd_route_array[i].key);
1375                 if (ret < 0) {
1376                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1377                                 "l3fwd hash on socket %d\n", i, socketid);
1378                 }
1379                 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
1380                 printf("Hash: Adding key\n");
1381                 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
1382         }
1383 }
1384 #endif
1385
1386 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1387 static void
1388 setup_lpm(int socketid)
1389 {
1390         unsigned i;
1391         int ret;
1392         char s[64];
1393
1394         /* create the LPM table */
1395         struct rte_lpm_config lpm_ipv4_config;
1396
1397         lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
1398         lpm_ipv4_config.number_tbl8s = 256;
1399         lpm_ipv4_config.flags = 0;
1400
1401         snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
1402         ipv4_l3fwd_lookup_struct[socketid] =
1403                         rte_lpm_create(s, socketid, &lpm_ipv4_config);
1404         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1405                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
1406                                 " on socket %d\n", socketid);
1407
1408         /* populate the LPM table */
1409         for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1410                 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
1411                         ipv4_l3fwd_route_array[i].ip,
1412                         ipv4_l3fwd_route_array[i].depth,
1413                         ipv4_l3fwd_route_array[i].if_out);
1414
1415                 if (ret < 0) {
1416                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
1417                                 "l3fwd LPM table on socket %d\n",
1418                                 i, socketid);
1419                 }
1420
1421                 printf("LPM: Adding route 0x%08x / %d (%d)\n",
1422                         (unsigned)ipv4_l3fwd_route_array[i].ip,
1423                         ipv4_l3fwd_route_array[i].depth,
1424                         ipv4_l3fwd_route_array[i].if_out);
1425         }
1426 }
1427 #endif
1428
1429 static int
1430 init_mem(unsigned nb_mbuf)
1431 {
1432         struct lcore_conf *qconf;
1433         int socketid;
1434         unsigned lcore_id;
1435         char s[64];
1436
1437         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1438                 if (rte_lcore_is_enabled(lcore_id) == 0)
1439                         continue;
1440
1441                 if (numa_on)
1442                         socketid = rte_lcore_to_socket_id(lcore_id);
1443                 else
1444                         socketid = 0;
1445
1446                 if (socketid >= NB_SOCKETS) {
1447                         rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
1448                                         "out of range %d\n", socketid,
1449                                                 lcore_id, NB_SOCKETS);
1450                 }
1451                 if (pktmbuf_pool[socketid] == NULL) {
1452                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
1453                         pktmbuf_pool[socketid] =
1454                                 rte_pktmbuf_pool_create(s, nb_mbuf,
1455                                         MEMPOOL_CACHE_SIZE, 0,
1456                                         RTE_MBUF_DEFAULT_BUF_SIZE,
1457                                         socketid);
1458                         if (pktmbuf_pool[socketid] == NULL)
1459                                 rte_exit(EXIT_FAILURE,
1460                                         "Cannot init mbuf pool on socket %d\n",
1461                                                                 socketid);
1462                         else
1463                                 printf("Allocated mbuf pool on socket %d\n",
1464                                                                 socketid);
1465
1466 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1467                         setup_lpm(socketid);
1468 #else
1469                         setup_hash(socketid);
1470 #endif
1471                 }
1472                 qconf = &lcore_conf[lcore_id];
1473                 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
1474 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1475                 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
1476 #endif
1477         }
1478         return 0;
1479 }
1480
1481 /* Check the link status of all ports in up to 9s, and print them finally */
1482 static void
1483 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
1484 {
1485 #define CHECK_INTERVAL 100 /* 100ms */
1486 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
1487         uint8_t portid, count, all_ports_up, print_flag = 0;
1488         struct rte_eth_link link;
1489
1490         printf("\nChecking link status");
1491         fflush(stdout);
1492         for (count = 0; count <= MAX_CHECK_TIME; count++) {
1493                 all_ports_up = 1;
1494                 for (portid = 0; portid < port_num; portid++) {
1495                         if ((port_mask & (1 << portid)) == 0)
1496                                 continue;
1497                         memset(&link, 0, sizeof(link));
1498                         rte_eth_link_get_nowait(portid, &link);
1499                         /* print link status if flag set */
1500                         if (print_flag == 1) {
1501                                 if (link.link_status)
1502                                         printf("Port %d Link Up - speed %u "
1503                                                 "Mbps - %s\n", (uint8_t)portid,
1504                                                 (unsigned)link.link_speed,
1505                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
1506                                         ("full-duplex") : ("half-duplex\n"));
1507                                 else
1508                                         printf("Port %d Link Down\n",
1509                                                 (uint8_t)portid);
1510                                 continue;
1511                         }
1512                         /* clear all_ports_up flag if any link down */
1513                         if (link.link_status == ETH_LINK_DOWN) {
1514                                 all_ports_up = 0;
1515                                 break;
1516                         }
1517                 }
1518                 /* after finally printing all link status, get out */
1519                 if (print_flag == 1)
1520                         break;
1521
1522                 if (all_ports_up == 0) {
1523                         printf(".");
1524                         fflush(stdout);
1525                         rte_delay_ms(CHECK_INTERVAL);
1526                 }
1527
1528                 /* set the print_flag if all ports up or timeout */
1529                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
1530                         print_flag = 1;
1531                         printf("done\n");
1532                 }
1533         }
1534 }
1535
1536 int
1537 main(int argc, char **argv)
1538 {
1539         struct lcore_conf *qconf;
1540         struct rte_eth_dev_info dev_info;
1541         struct rte_eth_txconf *txconf;
1542         int ret;
1543         unsigned nb_ports;
1544         uint16_t queueid;
1545         unsigned lcore_id;
1546         uint64_t hz;
1547         uint32_t n_tx_queue, nb_lcores;
1548         uint32_t dev_rxq_num, dev_txq_num;
1549         uint8_t portid, nb_rx_queue, queue, socketid;
1550         uint16_t org_rxq_intr = port_conf.intr_conf.rxq;
1551
1552         /* catch SIGINT and restore cpufreq governor to ondemand */
1553         signal(SIGINT, signal_exit_now);
1554
1555         /* init EAL */
1556         ret = rte_eal_init(argc, argv);
1557         if (ret < 0)
1558                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
1559         argc -= ret;
1560         argv += ret;
1561
1562         /* init RTE timer library to be used late */
1563         rte_timer_subsystem_init();
1564
1565         /* parse application arguments (after the EAL ones) */
1566         ret = parse_args(argc, argv);
1567         if (ret < 0)
1568                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
1569
1570         if (check_lcore_params() < 0)
1571                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
1572
1573         ret = init_lcore_rx_queues();
1574         if (ret < 0)
1575                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
1576
1577         nb_ports = rte_eth_dev_count();
1578
1579         if (check_port_config(nb_ports) < 0)
1580                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
1581
1582         nb_lcores = rte_lcore_count();
1583
1584         /* initialize all ports */
1585         for (portid = 0; portid < nb_ports; portid++) {
1586                 /* skip ports that are not enabled */
1587                 if ((enabled_port_mask & (1 << portid)) == 0) {
1588                         printf("\nSkipping disabled port %d\n", portid);
1589                         continue;
1590                 }
1591
1592                 /* init port */
1593                 printf("Initializing port %d ... ", portid );
1594                 fflush(stdout);
1595
1596                 rte_eth_dev_info_get(portid, &dev_info);
1597                 dev_rxq_num = dev_info.max_rx_queues;
1598                 dev_txq_num = dev_info.max_tx_queues;
1599
1600                 nb_rx_queue = get_port_n_rx_queues(portid);
1601                 if (nb_rx_queue > dev_rxq_num)
1602                         rte_exit(EXIT_FAILURE,
1603                                 "Cannot configure not existed rxq: "
1604                                 "port=%d\n", portid);
1605
1606                 n_tx_queue = nb_lcores;
1607                 if (n_tx_queue > dev_txq_num)
1608                         n_tx_queue = dev_txq_num;
1609                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
1610                         nb_rx_queue, (unsigned)n_tx_queue );
1611                 /* If number of Rx queue is 0, no need to enable Rx interrupt */
1612                 if (nb_rx_queue == 0)
1613                         port_conf.intr_conf.rxq = 0;
1614                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
1615                                         (uint16_t)n_tx_queue, &port_conf);
1616                 /* Revert to original value */
1617                 port_conf.intr_conf.rxq = org_rxq_intr;
1618                 if (ret < 0)
1619                         rte_exit(EXIT_FAILURE, "Cannot configure device: "
1620                                         "err=%d, port=%d\n", ret, portid);
1621
1622                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
1623                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1624                 printf(", ");
1625
1626                 /* init memory */
1627                 ret = init_mem(NB_MBUF);
1628                 if (ret < 0)
1629                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
1630
1631                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1632                         if (rte_lcore_is_enabled(lcore_id) == 0)
1633                                 continue;
1634
1635                         /* Initialize TX buffers */
1636                         qconf = &lcore_conf[lcore_id];
1637                         qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
1638                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
1639                                 rte_eth_dev_socket_id(portid));
1640                         if (qconf->tx_buffer[portid] == NULL)
1641                                 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
1642                                                 (unsigned) portid);
1643
1644                         rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
1645                 }
1646
1647                 /* init one TX queue per couple (lcore,port) */
1648                 queueid = 0;
1649                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1650                         if (rte_lcore_is_enabled(lcore_id) == 0)
1651                                 continue;
1652
1653                         if (queueid >= dev_txq_num)
1654                                 continue;
1655
1656                         if (numa_on)
1657                                 socketid = \
1658                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
1659                         else
1660                                 socketid = 0;
1661
1662                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
1663                         fflush(stdout);
1664
1665                         rte_eth_dev_info_get(portid, &dev_info);
1666                         txconf = &dev_info.default_txconf;
1667                         if (port_conf.rxmode.jumbo_frame)
1668                                 txconf->txq_flags = 0;
1669                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
1670                                                      socketid, txconf);
1671                         if (ret < 0)
1672                                 rte_exit(EXIT_FAILURE,
1673                                         "rte_eth_tx_queue_setup: err=%d, "
1674                                                 "port=%d\n", ret, portid);
1675
1676                         qconf = &lcore_conf[lcore_id];
1677                         qconf->tx_queue_id[portid] = queueid;
1678                         queueid++;
1679
1680                         qconf->tx_port_id[qconf->n_tx_port] = portid;
1681                         qconf->n_tx_port++;
1682                 }
1683                 printf("\n");
1684         }
1685
1686         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1687                 if (rte_lcore_is_enabled(lcore_id) == 0)
1688                         continue;
1689
1690                 /* init power management library */
1691                 ret = rte_power_init(lcore_id);
1692                 if (ret)
1693                         RTE_LOG(ERR, POWER,
1694                                 "Library initialization failed on core %u\n", lcore_id);
1695
1696                 /* init timer structures for each enabled lcore */
1697                 rte_timer_init(&power_timers[lcore_id]);
1698                 hz = rte_get_timer_hz();
1699                 rte_timer_reset(&power_timers[lcore_id],
1700                         hz/TIMER_NUMBER_PER_SECOND, SINGLE, lcore_id,
1701                                                 power_timer_cb, NULL);
1702
1703                 qconf = &lcore_conf[lcore_id];
1704                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
1705                 fflush(stdout);
1706                 /* init RX queues */
1707                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
1708                         portid = qconf->rx_queue_list[queue].port_id;
1709                         queueid = qconf->rx_queue_list[queue].queue_id;
1710
1711                         if (numa_on)
1712                                 socketid = \
1713                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
1714                         else
1715                                 socketid = 0;
1716
1717                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
1718                         fflush(stdout);
1719
1720                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
1721                                 socketid, NULL,
1722                                 pktmbuf_pool[socketid]);
1723                         if (ret < 0)
1724                                 rte_exit(EXIT_FAILURE,
1725                                         "rte_eth_rx_queue_setup: err=%d, "
1726                                                 "port=%d\n", ret, portid);
1727                 }
1728         }
1729
1730         printf("\n");
1731
1732         /* start ports */
1733         for (portid = 0; portid < nb_ports; portid++) {
1734                 if ((enabled_port_mask & (1 << portid)) == 0) {
1735                         continue;
1736                 }
1737                 /* Start device */
1738                 ret = rte_eth_dev_start(portid);
1739                 if (ret < 0)
1740                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
1741                                                 "port=%d\n", ret, portid);
1742                 /*
1743                  * If enabled, put device in promiscuous mode.
1744                  * This allows IO forwarding mode to forward packets
1745                  * to itself through 2 cross-connected  ports of the
1746                  * target machine.
1747                  */
1748                 if (promiscuous_on)
1749                         rte_eth_promiscuous_enable(portid);
1750                 /* initialize spinlock for each port */
1751                 rte_spinlock_init(&(locks[portid]));
1752         }
1753
1754         check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
1755
1756         /* launch per-lcore init on every lcore */
1757         rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1758         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1759                 if (rte_eal_wait_lcore(lcore_id) < 0)
1760                         return -1;
1761         }
1762
1763         return 0;
1764 }