examples/l3fwd-power/main.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 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_memory.h>
  51 #include <rte_memcpy.h>
  52 #include <rte_memzone.h>
  53 #include <rte_eal.h>
  54 #include <rte_per_lcore.h>
  55 #include <rte_launch.h>
  56 #include <rte_atomic.h>
  57 #include <rte_cycles.h>
  58 #include <rte_prefetch.h>
  59 #include <rte_lcore.h>
  60 #include <rte_per_lcore.h>
  61 #include <rte_branch_prediction.h>
  62 #include <rte_interrupts.h>
  63 #include <rte_pci.h>
  64 #include <rte_random.h>
  65 #include <rte_debug.h>
  66 #include <rte_ether.h>
  67 #include <rte_ethdev.h>
  68 #include <rte_ring.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 /* around 100ms at 2 Ghz */
  87 #define TIMER_RESOLUTION_CYCLES           200000000ULL
  88 /* 100 ms interval */
  89 #define TIMER_NUMBER_PER_SECOND           10
  90 /* 100000 us */
  91 #define SCALING_PERIOD                    (1000000/TIMER_NUMBER_PER_SECOND)
  92 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
  93
  94 #define APP_LOOKUP_EXACT_MATCH          0
  95 #define APP_LOOKUP_LPM                  1
  96 #define DO_RFC_1812_CHECKS
  97
  98 #ifndef APP_LOOKUP_METHOD
  99 #define APP_LOOKUP_METHOD             APP_LOOKUP_LPM
 100 #endif
 101
 102 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 103 #include <rte_hash.h>
 104 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 105 #include <rte_lpm.h>
 106 #else
 107 #error "APP_LOOKUP_METHOD set to incorrect value"
 108 #endif
 109
 110 #ifndef IPv6_BYTES
 111 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
 112                        "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
 113 #define IPv6_BYTES(addr) \
 114         addr[0],  addr[1], addr[2],  addr[3], \
 115         addr[4],  addr[5], addr[6],  addr[7], \
 116         addr[8],  addr[9], addr[10], addr[11],\
 117         addr[12], addr[13],addr[14], addr[15]
 118 #endif
 119
 120 #define MAX_JUMBO_PKT_LEN  9600
 121
 122 #define IPV6_ADDR_LEN 16
 123
 124 #define MEMPOOL_CACHE_SIZE 256
 125
 126 /*
 127  * This expression is used to calculate the number of mbufs needed depending on
 128  * user input, taking into account memory for rx and tx hardware rings, cache
 129  * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
 130  * NB_MBUF never goes below a minimum value of 8192.
 131  */
 132
 133 #define NB_MBUF RTE_MAX ( \
 134         (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \
 135         nb_ports*nb_lcores*MAX_PKT_BURST + \
 136         nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \
 137         nb_lcores*MEMPOOL_CACHE_SIZE), \
 138         (unsigned)8192)
 139
 140 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 141
 142 #define NB_SOCKETS 8
 143
 144 /* Configure how many packets ahead to prefetch, when reading packets */
 145 #define PREFETCH_OFFSET 3
 146
 147 /*
 148  * Configurable number of RX/TX ring descriptors
 149  */
 150 #define RTE_TEST_RX_DESC_DEFAULT 128
 151 #define RTE_TEST_TX_DESC_DEFAULT 512
 152 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 153 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 154
 155 /* ethernet addresses of ports */
 156 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
 157
 158 /* ethernet addresses of ports */
 159 static rte_spinlock_t locks[RTE_MAX_ETHPORTS];
 160
 161 /* mask of enabled ports */
 162 static uint32_t enabled_port_mask = 0;
 163 /* Ports set in promiscuous mode off by default. */
 164 static int promiscuous_on = 0;
 165 /* NUMA is enabled by default. */
 166 static int numa_on = 1;
 167
 168 enum freq_scale_hint_t
 169 {
 170         FREQ_LOWER    =      -1,
 171         FREQ_CURRENT  =       0,
 172         FREQ_HIGHER   =       1,
 173         FREQ_HIGHEST  =       2
 174 };
 175
 176 struct mbuf_table {
 177         uint16_t len;
 178         struct rte_mbuf *m_table[MAX_PKT_BURST];
 179 };
 180
 181 struct lcore_rx_queue {
 182         uint8_t port_id;
 183         uint8_t queue_id;
 184         enum freq_scale_hint_t freq_up_hint;
 185         uint32_t zero_rx_packet_count;
 186         uint32_t idle_hint;
 187 } __rte_cache_aligned;
 188
 189 #define MAX_RX_QUEUE_PER_LCORE 16
 190 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
 191 #define MAX_RX_QUEUE_PER_PORT 128
 192
 193 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
 194
 195
 196 #define MAX_LCORE_PARAMS 1024
 197 struct lcore_params {
 198         uint8_t port_id;
 199         uint8_t queue_id;
 200         uint8_t lcore_id;
 201 } __rte_cache_aligned;
 202
 203 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 204 static struct lcore_params lcore_params_array_default[] = {
 205         {0, 0, 2},
 206         {0, 1, 2},
 207         {0, 2, 2},
 208         {1, 0, 2},
 209         {1, 1, 2},
 210         {1, 2, 2},
 211         {2, 0, 2},
 212         {3, 0, 3},
 213         {3, 1, 3},
 214 };
 215
 216 static struct lcore_params * lcore_params = lcore_params_array_default;
 217 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
 218                                 sizeof(lcore_params_array_default[0]);
 219
 220 static struct rte_eth_conf port_conf = {
 221         .rxmode = {
 222                 .mq_mode        = ETH_MQ_RX_RSS,
 223                 .max_rx_pkt_len = ETHER_MAX_LEN,
 224                 .split_hdr_size = 0,
 225                 .header_split   = 0, /**< Header Split disabled */
 226                 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
 227                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 228                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 229                 .hw_strip_crc   = 0, /**< CRC stripped by hardware */
 230         },
 231         .rx_adv_conf = {
 232                 .rss_conf = {
 233                         .rss_key = NULL,
 234                         .rss_hf = ETH_RSS_UDP,
 235                 },
 236         },
 237         .txmode = {
 238                 .mq_mode = ETH_MQ_TX_NONE,
 239         },
 240         .intr_conf = {
 241                 .lsc = 1,
 242 #ifdef RTE_NEXT_ABI
 243                 .rxq = 1,
 244 #endif
 245         },
 246 };
 247
 248 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 249
 250
 251 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 252
 253 #ifdef RTE_MACHINE_CPUFLAG_SSE4_2
 254 #include <rte_hash_crc.h>
 255 #define DEFAULT_HASH_FUNC       rte_hash_crc
 256 #else
 257 #include <rte_jhash.h>
 258 #define DEFAULT_HASH_FUNC       rte_jhash
 259 #endif
 260
 261 struct ipv4_5tuple {
 262         uint32_t ip_dst;
 263         uint32_t ip_src;
 264         uint16_t port_dst;
 265         uint16_t port_src;
 266         uint8_t  proto;
 267 } __attribute__((__packed__));
 268
 269 struct ipv6_5tuple {
 270         uint8_t  ip_dst[IPV6_ADDR_LEN];
 271         uint8_t  ip_src[IPV6_ADDR_LEN];
 272         uint16_t port_dst;
 273         uint16_t port_src;
 274         uint8_t  proto;
 275 } __attribute__((__packed__));
 276
 277 struct ipv4_l3fwd_route {
 278         struct ipv4_5tuple key;
 279         uint8_t if_out;
 280 };
 281
 282 struct ipv6_l3fwd_route {
 283         struct ipv6_5tuple key;
 284         uint8_t if_out;
 285 };
 286
 287 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 288         {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
 289         {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
 290         {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
 291         {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
 292 };
 293
 294 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
 295         {
 296                 {
 297                         {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 298                          0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
 299                         {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 300                          0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
 301                          1, 10, IPPROTO_UDP
 302                 }, 4
 303         },
 304 };
 305
 306 typedef struct rte_hash lookup_struct_t;
 307 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 308 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
 309
 310 #define L3FWD_HASH_ENTRIES      1024
 311
 312 #define IPV4_L3FWD_NUM_ROUTES \
 313         (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
 314
 315 #define IPV6_L3FWD_NUM_ROUTES \
 316         (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))
 317
 318 static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 319 static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 320 #endif
 321
 322 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 323 struct ipv4_l3fwd_route {
 324         uint32_t ip;
 325         uint8_t  depth;
 326         uint8_t  if_out;
 327 };
 328
 329 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 330         {IPv4(1,1,1,0), 24, 0},
 331         {IPv4(2,1,1,0), 24, 1},
 332         {IPv4(3,1,1,0), 24, 2},
 333         {IPv4(4,1,1,0), 24, 3},
 334         {IPv4(5,1,1,0), 24, 4},
 335         {IPv4(6,1,1,0), 24, 5},
 336         {IPv4(7,1,1,0), 24, 6},
 337         {IPv4(8,1,1,0), 24, 7},
 338 };
 339
 340 #define IPV4_L3FWD_NUM_ROUTES \
 341         (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
 342
 343 #define IPV4_L3FWD_LPM_MAX_RULES     1024
 344
 345 typedef struct rte_lpm lookup_struct_t;
 346 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 347 #endif
 348
 349 struct lcore_conf {
 350         uint16_t n_rx_queue;
 351         struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 352         uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
 353         struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
 354         lookup_struct_t * ipv4_lookup_struct;
 355         lookup_struct_t * ipv6_lookup_struct;
 356 } __rte_cache_aligned;
 357
 358 struct lcore_stats {
 359         /* total sleep time in ms since last frequency scaling down */
 360         uint32_t sleep_time;
 361         /* number of long sleep recently */
 362         uint32_t nb_long_sleep;
 363         /* freq. scaling up trend */
 364         uint32_t trend;
 365         /* total packet processed recently */
 366         uint64_t nb_rx_processed;
 367         /* total iterations looped recently */
 368         uint64_t nb_iteration_looped;
 369         uint32_t padding[9];
 370 } __rte_cache_aligned;
 371
 372 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
 373 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
 374 static struct rte_timer power_timers[RTE_MAX_LCORE];
 375
 376 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
 377 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
 378                         unsigned lcore_id, uint8_t port_id, uint16_t queue_id);
 379
 380 /* exit signal handler */
 381 static void
 382 signal_exit_now(int sigtype)
 383 {
 384         unsigned lcore_id;
 385         int ret;
 386
 387         if (sigtype == SIGINT) {
 388                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 389                         if (rte_lcore_is_enabled(lcore_id) == 0)
 390                                 continue;
 391
 392                         /* init power management library */
 393                         ret = rte_power_exit(lcore_id);
 394                         if (ret)
 395                                 rte_exit(EXIT_FAILURE, "Power management "
 396                                         "library de-initialization failed on "
 397                                                         "core%u\n", lcore_id);
 398                 }
 399         }
 400
 401         rte_exit(EXIT_SUCCESS, "User forced exit\n");
 402 }
 403
 404 /*  Freqency scale down timer callback */
 405 static void
 406 power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
 407                           __attribute__((unused)) void *arg)
 408 {
 409         uint64_t hz;
 410         float sleep_time_ratio;
 411         unsigned lcore_id = rte_lcore_id();
 412
 413         /* accumulate total execution time in us when callback is invoked */
 414         sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
 415                                         (float)SCALING_PERIOD;
 416         /**
 417          * check whether need to scale down frequency a step if it sleep a lot.
 418          */
 419         if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
 420                 if (rte_power_freq_down)
 421                         rte_power_freq_down(lcore_id);
 422         }
 423         else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
 424                 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
 425                 /**
 426                  * scale down a step if average packet per iteration less
 427                  * than expectation.
 428                  */
 429                 if (rte_power_freq_down)
 430                         rte_power_freq_down(lcore_id);
 431         }
 432
 433         /**
 434          * initialize another timer according to current frequency to ensure
 435          * timer interval is relatively fixed.
 436          */
 437         hz = rte_get_timer_hz();
 438         rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
 439                                 SINGLE, lcore_id, power_timer_cb, NULL);
 440
 441         stats[lcore_id].nb_rx_processed = 0;
 442         stats[lcore_id].nb_iteration_looped = 0;
 443
 444         stats[lcore_id].sleep_time = 0;
 445 }
 446
 447 /* Send burst of packets on an output interface */
 448 static inline int
 449 send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port)
 450 {
 451         struct rte_mbuf **m_table;
 452         int ret;
 453         uint16_t queueid;
 454
 455         queueid = qconf->tx_queue_id[port];
 456         m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
 457
 458         ret = rte_eth_tx_burst(port, queueid, m_table, n);
 459         if (unlikely(ret < n)) {
 460                 do {
 461                         rte_pktmbuf_free(m_table[ret]);
 462                 } while (++ret < n);
 463         }
 464
 465         return 0;
 466 }
 467
 468 /* Enqueue a single packet, and send burst if queue is filled */
 469 static inline int
 470 send_single_packet(struct rte_mbuf *m, uint8_t port)
 471 {
 472         uint32_t lcore_id;
 473         uint16_t len;
 474         struct lcore_conf *qconf;
 475
 476         lcore_id = rte_lcore_id();
 477
 478         qconf = &lcore_conf[lcore_id];
 479         len = qconf->tx_mbufs[port].len;
 480         qconf->tx_mbufs[port].m_table[len] = m;
 481         len++;
 482
 483         /* enough pkts to be sent */
 484         if (unlikely(len == MAX_PKT_BURST)) {
 485                 send_burst(qconf, MAX_PKT_BURST, port);
 486                 len = 0;
 487         }
 488
 489         qconf->tx_mbufs[port].len = len;
 490         return 0;
 491 }
 492
 493 #ifdef DO_RFC_1812_CHECKS
 494 static inline int
 495 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
 496 {
 497         /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
 498         /*
 499          * 1. The packet length reported by the Link Layer must be large
 500          * enough to hold the minimum length legal IP datagram (20 bytes).
 501          */
 502         if (link_len < sizeof(struct ipv4_hdr))
 503                 return -1;
 504
 505         /* 2. The IP checksum must be correct. */
 506         /* this is checked in H/W */
 507
 508         /*
 509          * 3. The IP version number must be 4. If the version number is not 4
 510          * then the packet may be another version of IP, such as IPng or
 511          * ST-II.
 512          */
 513         if (((pkt->version_ihl) >> 4) != 4)
 514                 return -3;
 515         /*
 516          * 4. The IP header length field must be large enough to hold the
 517          * minimum length legal IP datagram (20 bytes = 5 words).
 518          */
 519         if ((pkt->version_ihl & 0xf) < 5)
 520                 return -4;
 521
 522         /*
 523          * 5. The IP total length field must be large enough to hold the IP
 524          * datagram header, whose length is specified in the IP header length
 525          * field.
 526          */
 527         if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
 528                 return -5;
 529
 530         return 0;
 531 }
 532 #endif
 533
 534 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 535 static void
 536 print_ipv4_key(struct ipv4_5tuple key)
 537 {
 538         printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
 539                 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
 540                                 key.port_dst, key.port_src, key.proto);
 541 }
 542 static void
 543 print_ipv6_key(struct ipv6_5tuple key)
 544 {
 545         printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
 546                 "port dst = %d, port src = %d, proto = %d\n",
 547                 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
 548                 key.port_dst, key.port_src, key.proto);
 549 }
 550
 551 static inline uint8_t
 552 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
 553                 lookup_struct_t * ipv4_l3fwd_lookup_struct)
 554 {
 555         struct ipv4_5tuple key;
 556         struct tcp_hdr *tcp;
 557         struct udp_hdr *udp;
 558         int ret = 0;
 559
 560         key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
 561         key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
 562         key.proto = ipv4_hdr->next_proto_id;
 563
 564         switch (ipv4_hdr->next_proto_id) {
 565         case IPPROTO_TCP:
 566                 tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr +
 567                                         sizeof(struct ipv4_hdr));
 568                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 569                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 570                 break;
 571
 572         case IPPROTO_UDP:
 573                 udp = (struct udp_hdr *)((unsigned char *)ipv4_hdr +
 574                                         sizeof(struct ipv4_hdr));
 575                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 576                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 577                 break;
 578
 579         default:
 580                 key.port_dst = 0;
 581                 key.port_src = 0;
 582                 break;
 583         }
 584
 585         /* Find destination port */
 586         ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
 587         return (uint8_t)((ret < 0)? portid : ipv4_l3fwd_out_if[ret]);
 588 }
 589
 590 static inline uint8_t
 591 get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr,  uint8_t portid,
 592                         lookup_struct_t *ipv6_l3fwd_lookup_struct)
 593 {
 594         struct ipv6_5tuple key;
 595         struct tcp_hdr *tcp;
 596         struct udp_hdr *udp;
 597         int ret = 0;
 598
 599         memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
 600         memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
 601
 602         key.proto = ipv6_hdr->proto;
 603
 604         switch (ipv6_hdr->proto) {
 605         case IPPROTO_TCP:
 606                 tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr +
 607                                         sizeof(struct ipv6_hdr));
 608                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 609                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 610                 break;
 611
 612         case IPPROTO_UDP:
 613                 udp = (struct udp_hdr *)((unsigned char *) ipv6_hdr +
 614                                         sizeof(struct ipv6_hdr));
 615                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 616                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 617                 break;
 618
 619         default:
 620                 key.port_dst = 0;
 621                 key.port_src = 0;
 622                 break;
 623         }
 624
 625         /* Find destination port */
 626         ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
 627         return (uint8_t)((ret < 0)? portid : ipv6_l3fwd_out_if[ret]);
 628 }
 629 #endif
 630
 631 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 632 static inline uint8_t
 633 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
 634                 lookup_struct_t *ipv4_l3fwd_lookup_struct)
 635 {
 636         uint8_t next_hop;
 637
 638         return (uint8_t) ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
 639                         rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
 640                         next_hop : portid);
 641 }
 642 #endif
 643
 644 static inline void
 645 l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
 646                                 struct lcore_conf *qconf)
 647 {
 648         struct ether_hdr *eth_hdr;
 649         struct ipv4_hdr *ipv4_hdr;
 650         void *d_addr_bytes;
 651         uint8_t dst_port;
 652
 653         eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
 654
 655 #ifdef RTE_NEXT_ABI
 656         if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
 657 #else
 658         if (m->ol_flags & PKT_RX_IPV4_HDR) {
 659 #endif
 660                 /* Handle IPv4 headers.*/
 661                 ipv4_hdr =
 662                         rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
 663                                                 sizeof(struct ether_hdr));
 664
 665 #ifdef DO_RFC_1812_CHECKS
 666                 /* Check to make sure the packet is valid (RFC1812) */
 667                 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
 668                         rte_pktmbuf_free(m);
 669                         return;
 670                 }
 671 #endif
 672
 673                 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
 674                                         qconf->ipv4_lookup_struct);
 675                 if (dst_port >= RTE_MAX_ETHPORTS ||
 676                                 (enabled_port_mask & 1 << dst_port) == 0)
 677                         dst_port = portid;
 678
 679                 /* 02:00:00:00:00:xx */
 680                 d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
 681                 *((uint64_t *)d_addr_bytes) =
 682                         0x000000000002 + ((uint64_t)dst_port << 40);
 683
 684 #ifdef DO_RFC_1812_CHECKS
 685                 /* Update time to live and header checksum */
 686                 --(ipv4_hdr->time_to_live);
 687                 ++(ipv4_hdr->hdr_checksum);
 688 #endif
 689
 690                 /* src addr */
 691                 ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
 692
 693                 send_single_packet(m, dst_port);
 694 #ifdef RTE_NEXT_ABI
 695         } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
 696 #else
 697         }
 698         else {
 699 #endif
 700                 /* Handle IPv6 headers.*/
 701 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 702                 struct ipv6_hdr *ipv6_hdr;
 703
 704                 ipv6_hdr =
 705                         rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
 706                                                 sizeof(struct ether_hdr));
 707
 708                 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
 709                                         qconf->ipv6_lookup_struct);
 710
 711                 if (dst_port >= RTE_MAX_ETHPORTS ||
 712                                 (enabled_port_mask & 1 << dst_port) == 0)
 713                         dst_port = portid;
 714
 715                 /* 02:00:00:00:00:xx */
 716                 d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
 717                 *((uint64_t *)d_addr_bytes) =
 718                         0x000000000002 + ((uint64_t)dst_port << 40);
 719
 720                 /* src addr */
 721                 ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
 722
 723                 send_single_packet(m, dst_port);
 724 #else
 725                 /* We don't currently handle IPv6 packets in LPM mode. */
 726                 rte_pktmbuf_free(m);
 727 #endif
 728         }
 729
 730 }
 731
 732 #define MINIMUM_SLEEP_TIME         1
 733 #define SUSPEND_THRESHOLD          300
 734
 735 static inline uint32_t
 736 power_idle_heuristic(uint32_t zero_rx_packet_count)
 737 {
 738         /* If zero count is less than 100,  sleep 1us */
 739         if (zero_rx_packet_count < SUSPEND_THRESHOLD)
 740                 return MINIMUM_SLEEP_TIME;
 741         /* If zero count is less than 1000, sleep 100 us which is the
 742                 minimum latency switching from C3/C6 to C0
 743         */
 744         else
 745                 return SUSPEND_THRESHOLD;
 746
 747         return 0;
 748 }
 749
 750 static inline enum freq_scale_hint_t
 751 power_freq_scaleup_heuristic(unsigned lcore_id,
 752                              uint8_t port_id,
 753                              uint16_t queue_id)
 754 {
 755 /**
 756  * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
 757  * per iteration
 758  */
 759 #define FREQ_GEAR1_RX_PACKET_THRESHOLD             MAX_PKT_BURST
 760 #define FREQ_GEAR2_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*2)
 761 #define FREQ_GEAR3_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*3)
 762 #define FREQ_UP_TREND1_ACC   1
 763 #define FREQ_UP_TREND2_ACC   100
 764 #define FREQ_UP_THRESHOLD    10000
 765
 766         if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
 767                         FREQ_GEAR3_RX_PACKET_THRESHOLD) > 0)) {
 768                 stats[lcore_id].trend = 0;
 769                 return FREQ_HIGHEST;
 770         } else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
 771                         FREQ_GEAR2_RX_PACKET_THRESHOLD) > 0))
 772                 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
 773         else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
 774                         FREQ_GEAR1_RX_PACKET_THRESHOLD) > 0))
 775                 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
 776
 777         if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
 778                 stats[lcore_id].trend = 0;
 779                 return FREQ_HIGHER;
 780         }
 781
 782         return FREQ_CURRENT;
 783 }
 784
 785 /**
 786  * force polling thread sleep until one-shot rx interrupt triggers
 787  * @param port_id
 788  *  Port id.
 789  * @param queue_id
 790  *  Rx queue id.
 791  * @return
 792  *  0 on success
 793  */
 794 static int
 795 sleep_until_rx_interrupt(int num)
 796 {
 797         struct rte_epoll_event event[num];
 798         int n, i;
 799         uint8_t port_id, queue_id;
 800         void *data;
 801
 802         RTE_LOG(INFO, L3FWD_POWER,
 803                 "lcore %u sleeps until interrupt triggers\n",
 804                 rte_lcore_id());
 805
 806         n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1);
 807         for (i = 0; i < n; i++) {
 808                 data = event[i].epdata.data;
 809                 port_id = ((uintptr_t)data) >> CHAR_BIT;
 810                 queue_id = ((uintptr_t)data) &
 811                         RTE_LEN2MASK(CHAR_BIT, uint8_t);
 812                 RTE_LOG(INFO, L3FWD_POWER,
 813                         "lcore %u is waked up from rx interrupt on"
 814                         " port %d queue %d\n",
 815                         rte_lcore_id(), port_id, queue_id);
 816         }
 817
 818         return 0;
 819 }
 820
 821 static void turn_on_intr(struct lcore_conf *qconf)
 822 {
 823         int i;
 824         struct lcore_rx_queue *rx_queue;
 825         uint8_t port_id, queue_id;
 826
 827         for (i = 0; i < qconf->n_rx_queue; ++i) {
 828                 rx_queue = &(qconf->rx_queue_list[i]);
 829                 port_id = rx_queue->port_id;
 830                 queue_id = rx_queue->queue_id;
 831
 832                 rte_spinlock_lock(&(locks[port_id]));
 833                 rte_eth_dev_rx_intr_enable(port_id, queue_id);
 834                 rte_spinlock_unlock(&(locks[port_id]));
 835         }
 836 }
 837
 838 static int event_register(struct lcore_conf *qconf)
 839 {
 840         struct lcore_rx_queue *rx_queue;
 841         uint8_t portid, queueid;
 842         uint32_t data;
 843         int ret;
 844         int i;
 845
 846         for (i = 0; i < qconf->n_rx_queue; ++i) {
 847                 rx_queue = &(qconf->rx_queue_list[i]);
 848                 portid = rx_queue->port_id;
 849                 queueid = rx_queue->queue_id;
 850                 data = portid << CHAR_BIT | queueid;
 851
 852                 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
 853                                                 RTE_EPOLL_PER_THREAD,
 854                                                 RTE_INTR_EVENT_ADD,
 855                                                 (void *)((uintptr_t)data));
 856                 if (ret)
 857                         return ret;
 858         }
 859
 860         return 0;
 861 }
 862
 863 /* main processing loop */
 864 static int
 865 main_loop(__attribute__((unused)) void *dummy)
 866 {
 867         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 868         unsigned lcore_id;
 869         uint64_t prev_tsc, diff_tsc, cur_tsc;
 870         uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
 871         int i, j, nb_rx;
 872         uint8_t portid, queueid;
 873         struct lcore_conf *qconf;
 874         struct lcore_rx_queue *rx_queue;
 875         enum freq_scale_hint_t lcore_scaleup_hint;
 876         uint32_t lcore_rx_idle_count = 0;
 877         uint32_t lcore_idle_hint = 0;
 878         int intr_en = 0;
 879
 880         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
 881
 882         prev_tsc = 0;
 883
 884         lcore_id = rte_lcore_id();
 885         qconf = &lcore_conf[lcore_id];
 886
 887         if (qconf->n_rx_queue == 0) {
 888                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
 889                 return 0;
 890         }
 891
 892         RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
 893
 894         for (i = 0; i < qconf->n_rx_queue; i++) {
 895                 portid = qconf->rx_queue_list[i].port_id;
 896                 queueid = qconf->rx_queue_list[i].queue_id;
 897                 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%hhu "
 898                         "rxqueueid=%hhu\n", lcore_id, portid, queueid);
 899         }
 900
 901         /* add into event wait list */
 902         if (event_register(qconf) == 0)
 903                 intr_en = 1;
 904         else
 905                 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
 906
 907         while (1) {
 908                 stats[lcore_id].nb_iteration_looped++;
 909
 910                 cur_tsc = rte_rdtsc();
 911                 cur_tsc_power = cur_tsc;
 912
 913                 /*
 914                  * TX burst queue drain
 915                  */
 916                 diff_tsc = cur_tsc - prev_tsc;
 917                 if (unlikely(diff_tsc > drain_tsc)) {
 918
 919                         /*
 920                          * This could be optimized (use queueid instead of
 921                          * portid), but it is not called so often
 922                          */
 923                         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 924                                 if (qconf->tx_mbufs[portid].len == 0)
 925                                         continue;
 926                                 send_burst(&lcore_conf[lcore_id],
 927                                         qconf->tx_mbufs[portid].len,
 928                                         portid);
 929                                 qconf->tx_mbufs[portid].len = 0;
 930                         }
 931
 932                         prev_tsc = cur_tsc;
 933                 }
 934
 935                 diff_tsc_power = cur_tsc_power - prev_tsc_power;
 936                 if (diff_tsc_power > TIMER_RESOLUTION_CYCLES) {
 937                         rte_timer_manage();
 938                         prev_tsc_power = cur_tsc_power;
 939                 }
 940
 941 start_rx:
 942                 /*
 943                  * Read packet from RX queues
 944                  */
 945                 lcore_scaleup_hint = FREQ_CURRENT;
 946                 lcore_rx_idle_count = 0;
 947                 for (i = 0; i < qconf->n_rx_queue; ++i) {
 948                         rx_queue = &(qconf->rx_queue_list[i]);
 949                         rx_queue->idle_hint = 0;
 950                         portid = rx_queue->port_id;
 951                         queueid = rx_queue->queue_id;
 952
 953                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
 954                                                                 MAX_PKT_BURST);
 955
 956                         stats[lcore_id].nb_rx_processed += nb_rx;
 957                         if (unlikely(nb_rx == 0)) {
 958                                 /**
 959                                  * no packet received from rx queue, try to
 960                                  * sleep for a while forcing CPU enter deeper
 961                                  * C states.
 962                                  */
 963                                 rx_queue->zero_rx_packet_count++;
 964
 965                                 if (rx_queue->zero_rx_packet_count <=
 966                                                         MIN_ZERO_POLL_COUNT)
 967                                         continue;
 968
 969                                 rx_queue->idle_hint = power_idle_heuristic(\
 970                                         rx_queue->zero_rx_packet_count);
 971                                 lcore_rx_idle_count++;
 972                         } else {
 973                                 rx_queue->zero_rx_packet_count = 0;
 974
 975                                 /**
 976                                  * do not scale up frequency immediately as
 977                                  * user to kernel space communication is costly
 978                                  * which might impact packet I/O for received
 979                                  * packets.
 980                                  */
 981                                 rx_queue->freq_up_hint =
 982                                         power_freq_scaleup_heuristic(lcore_id,
 983                                                         portid, queueid);
 984                         }
 985
 986                         /* Prefetch first packets */
 987                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
 988                                 rte_prefetch0(rte_pktmbuf_mtod(
 989                                                 pkts_burst[j], void *));
 990                         }
 991
 992                         /* Prefetch and forward already prefetched packets */
 993                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
 994                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
 995                                                 j + PREFETCH_OFFSET], void *));
 996                                 l3fwd_simple_forward(pkts_burst[j], portid,
 997                                                                 qconf);
 998                         }
 999
1000                         /* Forward remaining prefetched packets */
1001                         for (; j < nb_rx; j++) {
1002                                 l3fwd_simple_forward(pkts_burst[j], portid,
1003                                                                 qconf);
1004                         }
1005                 }
1006
1007                 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
1008                         for (i = 1, lcore_scaleup_hint =
1009                                 qconf->rx_queue_list[0].freq_up_hint;
1010                                         i < qconf->n_rx_queue; ++i) {
1011                                 rx_queue = &(qconf->rx_queue_list[i]);
1012                                 if (rx_queue->freq_up_hint >
1013                                                 lcore_scaleup_hint)
1014                                         lcore_scaleup_hint =
1015                                                 rx_queue->freq_up_hint;
1016                         }
1017
1018                         if (lcore_scaleup_hint == FREQ_HIGHEST) {
1019                                 if (rte_power_freq_max)
1020                                         rte_power_freq_max(lcore_id);
1021                         } else if (lcore_scaleup_hint == FREQ_HIGHER) {
1022                                 if (rte_power_freq_up)
1023                                         rte_power_freq_up(lcore_id);
1024                         }
1025                 } else {
1026                         /**
1027                          * All Rx queues empty in recent consecutive polls,
1028                          * sleep in a conservative manner, meaning sleep as
1029                          * less as possible.
1030                          */
1031                         for (i = 1, lcore_idle_hint =
1032                                 qconf->rx_queue_list[0].idle_hint;
1033                                         i < qconf->n_rx_queue; ++i) {
1034                                 rx_queue = &(qconf->rx_queue_list[i]);
1035                                 if (rx_queue->idle_hint < lcore_idle_hint)
1036                                         lcore_idle_hint = rx_queue->idle_hint;
1037                         }
1038
1039                         if (lcore_idle_hint < SUSPEND_THRESHOLD)
1040                                 /**
1041                                  * execute "pause" instruction to avoid context
1042                                  * switch which generally take hundred of
1043                                  * microseconds for short sleep.
1044                                  */
1045                                 rte_delay_us(lcore_idle_hint);
1046                         else {
1047                                 /* suspend until rx interrupt trigges */
1048                                 if (intr_en) {
1049                                         turn_on_intr(qconf);
1050                                         sleep_until_rx_interrupt(
1051                                                 qconf->n_rx_queue);
1052                                 }
1053                                 /* start receiving packets immediately */
1054                                 goto start_rx;
1055                         }
1056                         stats[lcore_id].sleep_time += lcore_idle_hint;
1057                 }
1058         }
1059 }
1060
1061 static int
1062 check_lcore_params(void)
1063 {
1064         uint8_t queue, lcore;
1065         uint16_t i;
1066         int socketid;
1067
1068         for (i = 0; i < nb_lcore_params; ++i) {
1069                 queue = lcore_params[i].queue_id;
1070                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1071                         printf("invalid queue number: %hhu\n", queue);
1072                         return -1;
1073                 }
1074                 lcore = lcore_params[i].lcore_id;
1075                 if (!rte_lcore_is_enabled(lcore)) {
1076                         printf("error: lcore %hhu is not enabled in lcore "
1077                                                         "mask\n", lcore);
1078                         return -1;
1079                 }
1080                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1081                                                         (numa_on == 0)) {
1082                         printf("warning: lcore %hhu is on socket %d with numa "
1083                                                 "off\n", lcore, socketid);
1084                 }
1085         }
1086         return 0;
1087 }
1088
1089 static int
1090 check_port_config(const unsigned nb_ports)
1091 {
1092         unsigned portid;
1093         uint16_t i;
1094
1095         for (i = 0; i < nb_lcore_params; ++i) {
1096                 portid = lcore_params[i].port_id;
1097                 if ((enabled_port_mask & (1 << portid)) == 0) {
1098                         printf("port %u is not enabled in port mask\n",
1099                                                                 portid);
1100                         return -1;
1101                 }
1102                 if (portid >= nb_ports) {
1103                         printf("port %u is not present on the board\n",
1104                                                                 portid);
1105                         return -1;
1106                 }
1107         }
1108         return 0;
1109 }
1110
1111 static uint8_t
1112 get_port_n_rx_queues(const uint8_t port)
1113 {
1114         int queue = -1;
1115         uint16_t i;
1116
1117         for (i = 0; i < nb_lcore_params; ++i) {
1118                 if (lcore_params[i].port_id == port &&
1119                                 lcore_params[i].queue_id > queue)
1120                         queue = lcore_params[i].queue_id;
1121         }
1122         return (uint8_t)(++queue);
1123 }
1124
1125 static int
1126 init_lcore_rx_queues(void)
1127 {
1128         uint16_t i, nb_rx_queue;
1129         uint8_t lcore;
1130
1131         for (i = 0; i < nb_lcore_params; ++i) {
1132                 lcore = lcore_params[i].lcore_id;
1133                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1134                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1135                         printf("error: too many queues (%u) for lcore: %u\n",
1136                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1137                         return -1;
1138                 } else {
1139                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1140                                 lcore_params[i].port_id;
1141                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1142                                 lcore_params[i].queue_id;
1143                         lcore_conf[lcore].n_rx_queue++;
1144                 }
1145         }
1146         return 0;
1147 }
1148
1149 /* display usage */
1150 static void
1151 print_usage(const char *prgname)
1152 {
1153         printf ("%s [EAL options] -- -p PORTMASK -P"
1154                 "  [--config (port,queue,lcore)[,(port,queue,lcore]]"
1155                 "  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
1156                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1157                 "  -P : enable promiscuous mode\n"
1158                 "  --config (port,queue,lcore): rx queues configuration\n"
1159                 "  --no-numa: optional, disable numa awareness\n"
1160                 "  --enable-jumbo: enable jumbo frame"
1161                 " which max packet len is PKTLEN in decimal (64-9600)\n",
1162                 prgname);
1163 }
1164
1165 static int parse_max_pkt_len(const char *pktlen)
1166 {
1167         char *end = NULL;
1168         unsigned long len;
1169
1170         /* parse decimal string */
1171         len = strtoul(pktlen, &end, 10);
1172         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1173                 return -1;
1174
1175         if (len == 0)
1176                 return -1;
1177
1178         return len;
1179 }
1180
1181 static int
1182 parse_portmask(const char *portmask)
1183 {
1184         char *end = NULL;
1185         unsigned long pm;
1186
1187         /* parse hexadecimal string */
1188         pm = strtoul(portmask, &end, 16);
1189         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1190                 return -1;
1191
1192         if (pm == 0)
1193                 return -1;
1194
1195         return pm;
1196 }
1197
1198 static int
1199 parse_config(const char *q_arg)
1200 {
1201         char s[256];
1202         const char *p, *p0 = q_arg;
1203         char *end;
1204         enum fieldnames {
1205                 FLD_PORT = 0,
1206                 FLD_QUEUE,
1207                 FLD_LCORE,
1208                 _NUM_FLD
1209         };
1210         unsigned long int_fld[_NUM_FLD];
1211         char *str_fld[_NUM_FLD];
1212         int i;
1213         unsigned size;
1214
1215         nb_lcore_params = 0;
1216
1217         while ((p = strchr(p0,'(')) != NULL) {
1218                 ++p;
1219                 if((p0 = strchr(p,')')) == NULL)
1220                         return -1;
1221
1222                 size = p0 - p;
1223                 if(size >= sizeof(s))
1224                         return -1;
1225
1226                 snprintf(s, sizeof(s), "%.*s", size, p);
1227                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1228                                                                 _NUM_FLD)
1229                         return -1;
1230                 for (i = 0; i < _NUM_FLD; i++){
1231                         errno = 0;
1232                         int_fld[i] = strtoul(str_fld[i], &end, 0);
1233                         if (errno != 0 || end == str_fld[i] || int_fld[i] >
1234                                                                         255)
1235                                 return -1;
1236                 }
1237                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1238                         printf("exceeded max number of lcore params: %hu\n",
1239                                 nb_lcore_params);
1240                         return -1;
1241                 }
1242                 lcore_params_array[nb_lcore_params].port_id =
1243                                 (uint8_t)int_fld[FLD_PORT];
1244                 lcore_params_array[nb_lcore_params].queue_id =
1245                                 (uint8_t)int_fld[FLD_QUEUE];
1246                 lcore_params_array[nb_lcore_params].lcore_id =
1247                                 (uint8_t)int_fld[FLD_LCORE];
1248                 ++nb_lcore_params;
1249         }
1250         lcore_params = lcore_params_array;
1251
1252         return 0;
1253 }
1254
1255 /* Parse the argument given in the command line of the application */
1256 static int
1257 parse_args(int argc, char **argv)
1258 {
1259         int opt, ret;
1260         char **argvopt;
1261         int option_index;
1262         char *prgname = argv[0];
1263         static struct option lgopts[] = {
1264                 {"config", 1, 0, 0},
1265                 {"no-numa", 0, 0, 0},
1266                 {"enable-jumbo", 0, 0, 0},
1267                 {NULL, 0, 0, 0}
1268         };
1269
1270         argvopt = argv;
1271
1272         while ((opt = getopt_long(argc, argvopt, "p:P",
1273                                 lgopts, &option_index)) != EOF) {
1274
1275                 switch (opt) {
1276                 /* portmask */
1277                 case 'p':
1278                         enabled_port_mask = parse_portmask(optarg);
1279                         if (enabled_port_mask == 0) {
1280                                 printf("invalid portmask\n");
1281                                 print_usage(prgname);
1282                                 return -1;
1283                         }
1284                         break;
1285                 case 'P':
1286                         printf("Promiscuous mode selected\n");
1287                         promiscuous_on = 1;
1288                         break;
1289
1290                 /* long options */
1291                 case 0:
1292                         if (!strncmp(lgopts[option_index].name, "config", 6)) {
1293                                 ret = parse_config(optarg);
1294                                 if (ret) {
1295                                         printf("invalid config\n");
1296                                         print_usage(prgname);
1297                                         return -1;
1298                                 }
1299                         }
1300
1301                         if (!strncmp(lgopts[option_index].name,
1302                                                 "no-numa", 7)) {
1303                                 printf("numa is disabled \n");
1304                                 numa_on = 0;
1305                         }
1306
1307                         if (!strncmp(lgopts[option_index].name,
1308                                         "enable-jumbo", 12)) {
1309                                 struct option lenopts =
1310                                         {"max-pkt-len", required_argument, \
1311                                                                         0, 0};
1312
1313                                 printf("jumbo frame is enabled \n");
1314                                 port_conf.rxmode.jumbo_frame = 1;
1315
1316                                 /**
1317                                  * if no max-pkt-len set, use the default value
1318                                  * ETHER_MAX_LEN
1319                                  */
1320                                 if (0 == getopt_long(argc, argvopt, "",
1321                                                 &lenopts, &option_index)) {
1322                                         ret = parse_max_pkt_len(optarg);
1323                                         if ((ret < 64) ||
1324                                                 (ret > MAX_JUMBO_PKT_LEN)){
1325                                                 printf("invalid packet "
1326                                                                 "length\n");
1327                                                 print_usage(prgname);
1328                                                 return -1;
1329                                         }
1330                                         port_conf.rxmode.max_rx_pkt_len = ret;
1331                                 }
1332                                 printf("set jumbo frame "
1333                                         "max packet length to %u\n",
1334                                 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
1335                         }
1336
1337                         break;
1338
1339                 default:
1340                         print_usage(prgname);
1341                         return -1;
1342                 }
1343         }
1344
1345         if (optind >= 0)
1346                 argv[optind-1] = prgname;
1347
1348         ret = optind-1;
1349         optind = 0; /* reset getopt lib */
1350         return ret;
1351 }
1352
1353 static void
1354 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
1355 {
1356         char buf[ETHER_ADDR_FMT_SIZE];
1357         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
1358         printf("%s%s", name, buf);
1359 }
1360
1361 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1362 static void
1363 setup_hash(int socketid)
1364 {
1365         struct rte_hash_parameters ipv4_l3fwd_hash_params = {
1366                 .name = NULL,
1367                 .entries = L3FWD_HASH_ENTRIES,
1368                 .key_len = sizeof(struct ipv4_5tuple),
1369                 .hash_func = DEFAULT_HASH_FUNC,
1370                 .hash_func_init_val = 0,
1371         };
1372
1373         struct rte_hash_parameters ipv6_l3fwd_hash_params = {
1374                 .name = NULL,
1375                 .entries = L3FWD_HASH_ENTRIES,
1376                 .key_len = sizeof(struct ipv6_5tuple),
1377                 .hash_func = DEFAULT_HASH_FUNC,
1378                 .hash_func_init_val = 0,
1379         };
1380
1381         unsigned i;
1382         int ret;
1383         char s[64];
1384
1385         /* create ipv4 hash */
1386         rte_snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
1387         ipv4_l3fwd_hash_params.name = s;
1388         ipv4_l3fwd_hash_params.socket_id = socketid;
1389         ipv4_l3fwd_lookup_struct[socketid] =
1390                 rte_hash_create(&ipv4_l3fwd_hash_params);
1391         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1392                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1393                                 "socket %d\n", socketid);
1394
1395         /* create ipv6 hash */
1396         rte_snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
1397         ipv6_l3fwd_hash_params.name = s;
1398         ipv6_l3fwd_hash_params.socket_id = socketid;
1399         ipv6_l3fwd_lookup_struct[socketid] =
1400                 rte_hash_create(&ipv6_l3fwd_hash_params);
1401         if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
1402                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1403                                 "socket %d\n", socketid);
1404
1405
1406         /* populate the ipv4 hash */
1407         for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1408                 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
1409                                 (void *) &ipv4_l3fwd_route_array[i].key);
1410                 if (ret < 0) {
1411                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1412                                 "l3fwd hash on socket %d\n", i, socketid);
1413                 }
1414                 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
1415                 printf("Hash: Adding key\n");
1416                 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
1417         }
1418
1419         /* populate the ipv6 hash */
1420         for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
1421                 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
1422                                 (void *) &ipv6_l3fwd_route_array[i].key);
1423                 if (ret < 0) {
1424                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1425                                 "l3fwd hash on socket %d\n", i, socketid);
1426                 }
1427                 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
1428                 printf("Hash: Adding key\n");
1429                 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
1430         }
1431 }
1432 #endif
1433
1434 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1435 static void
1436 setup_lpm(int socketid)
1437 {
1438         unsigned i;
1439         int ret;
1440         char s[64];
1441
1442         /* create the LPM table */
1443         snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
1444         ipv4_l3fwd_lookup_struct[socketid] = rte_lpm_create(s, socketid,
1445                                 IPV4_L3FWD_LPM_MAX_RULES, 0);
1446         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1447                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
1448                                 " on socket %d\n", socketid);
1449
1450         /* populate the LPM table */
1451         for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1452                 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
1453                         ipv4_l3fwd_route_array[i].ip,
1454                         ipv4_l3fwd_route_array[i].depth,
1455                         ipv4_l3fwd_route_array[i].if_out);
1456
1457                 if (ret < 0) {
1458                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
1459                                 "l3fwd LPM table on socket %d\n",
1460                                 i, socketid);
1461                 }
1462
1463                 printf("LPM: Adding route 0x%08x / %d (%d)\n",
1464                         (unsigned)ipv4_l3fwd_route_array[i].ip,
1465                         ipv4_l3fwd_route_array[i].depth,
1466                         ipv4_l3fwd_route_array[i].if_out);
1467         }
1468 }
1469 #endif
1470
1471 static int
1472 init_mem(unsigned nb_mbuf)
1473 {
1474         struct lcore_conf *qconf;
1475         int socketid;
1476         unsigned lcore_id;
1477         char s[64];
1478
1479         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1480                 if (rte_lcore_is_enabled(lcore_id) == 0)
1481                         continue;
1482
1483                 if (numa_on)
1484                         socketid = rte_lcore_to_socket_id(lcore_id);
1485                 else
1486                         socketid = 0;
1487
1488                 if (socketid >= NB_SOCKETS) {
1489                         rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
1490                                         "out of range %d\n", socketid,
1491                                                 lcore_id, NB_SOCKETS);
1492                 }
1493                 if (pktmbuf_pool[socketid] == NULL) {
1494                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
1495                         pktmbuf_pool[socketid] =
1496                                 rte_pktmbuf_pool_create(s, nb_mbuf,
1497                                         MEMPOOL_CACHE_SIZE, 0,
1498                                         RTE_MBUF_DEFAULT_BUF_SIZE,
1499                                         socketid);
1500                         if (pktmbuf_pool[socketid] == NULL)
1501                                 rte_exit(EXIT_FAILURE,
1502                                         "Cannot init mbuf pool on socket %d\n",
1503                                                                 socketid);
1504                         else
1505                                 printf("Allocated mbuf pool on socket %d\n",
1506                                                                 socketid);
1507
1508 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1509                         setup_lpm(socketid);
1510 #else
1511                         setup_hash(socketid);
1512 #endif
1513                 }
1514                 qconf = &lcore_conf[lcore_id];
1515                 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
1516 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1517                 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
1518 #endif
1519         }
1520         return 0;
1521 }
1522
1523 /* Check the link status of all ports in up to 9s, and print them finally */
1524 static void
1525 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
1526 {
1527 #define CHECK_INTERVAL 100 /* 100ms */
1528 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
1529         uint8_t portid, count, all_ports_up, print_flag = 0;
1530         struct rte_eth_link link;
1531
1532         printf("\nChecking link status");
1533         fflush(stdout);
1534         for (count = 0; count <= MAX_CHECK_TIME; count++) {
1535                 all_ports_up = 1;
1536                 for (portid = 0; portid < port_num; portid++) {
1537                         if ((port_mask & (1 << portid)) == 0)
1538                                 continue;
1539                         memset(&link, 0, sizeof(link));
1540                         rte_eth_link_get_nowait(portid, &link);
1541                         /* print link status if flag set */
1542                         if (print_flag == 1) {
1543                                 if (link.link_status)
1544                                         printf("Port %d Link Up - speed %u "
1545                                                 "Mbps - %s\n", (uint8_t)portid,
1546                                                 (unsigned)link.link_speed,
1547                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
1548                                         ("full-duplex") : ("half-duplex\n"));
1549                                 else
1550                                         printf("Port %d Link Down\n",
1551                                                 (uint8_t)portid);
1552                                 continue;
1553                         }
1554                         /* clear all_ports_up flag if any link down */
1555                         if (link.link_status == 0) {
1556                                 all_ports_up = 0;
1557                                 break;
1558                         }
1559                 }
1560                 /* after finally printing all link status, get out */
1561                 if (print_flag == 1)
1562                         break;
1563
1564                 if (all_ports_up == 0) {
1565                         printf(".");
1566                         fflush(stdout);
1567                         rte_delay_ms(CHECK_INTERVAL);
1568                 }
1569
1570                 /* set the print_flag if all ports up or timeout */
1571                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
1572                         print_flag = 1;
1573                         printf("done\n");
1574                 }
1575         }
1576 }
1577
1578 int
1579 main(int argc, char **argv)
1580 {
1581         struct lcore_conf *qconf;
1582         struct rte_eth_dev_info dev_info;
1583         struct rte_eth_txconf *txconf;
1584         int ret;
1585         unsigned nb_ports;
1586         uint16_t queueid;
1587         unsigned lcore_id;
1588         uint64_t hz;
1589         uint32_t n_tx_queue, nb_lcores;
1590         uint32_t dev_rxq_num, dev_txq_num;
1591         uint8_t portid, nb_rx_queue, queue, socketid;
1592
1593         /* catch SIGINT and restore cpufreq governor to ondemand */
1594         signal(SIGINT, signal_exit_now);
1595
1596         /* init EAL */
1597         ret = rte_eal_init(argc, argv);
1598         if (ret < 0)
1599                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
1600         argc -= ret;
1601         argv += ret;
1602
1603         /* init RTE timer library to be used late */
1604         rte_timer_subsystem_init();
1605
1606         /* parse application arguments (after the EAL ones) */
1607         ret = parse_args(argc, argv);
1608         if (ret < 0)
1609                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
1610
1611         if (check_lcore_params() < 0)
1612                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
1613
1614         ret = init_lcore_rx_queues();
1615         if (ret < 0)
1616                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
1617
1618
1619         nb_ports = rte_eth_dev_count();
1620         if (nb_ports > RTE_MAX_ETHPORTS)
1621                 nb_ports = RTE_MAX_ETHPORTS;
1622
1623         if (check_port_config(nb_ports) < 0)
1624                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
1625
1626         nb_lcores = rte_lcore_count();
1627
1628         /* initialize all ports */
1629         for (portid = 0; portid < nb_ports; portid++) {
1630                 /* skip ports that are not enabled */
1631                 if ((enabled_port_mask & (1 << portid)) == 0) {
1632                         printf("\nSkipping disabled port %d\n", portid);
1633                         continue;
1634                 }
1635
1636                 /* init port */
1637                 printf("Initializing port %d ... ", portid );
1638                 fflush(stdout);
1639
1640                 rte_eth_dev_info_get(portid, &dev_info);
1641                 dev_rxq_num = dev_info.max_rx_queues;
1642                 dev_txq_num = dev_info.max_tx_queues;
1643
1644                 nb_rx_queue = get_port_n_rx_queues(portid);
1645                 if (nb_rx_queue > dev_rxq_num)
1646                         rte_exit(EXIT_FAILURE,
1647                                 "Cannot configure not existed rxq: "
1648                                 "port=%d\n", portid);
1649
1650                 n_tx_queue = nb_lcores;
1651                 if (n_tx_queue > dev_txq_num)
1652                         n_tx_queue = dev_txq_num;
1653                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
1654                         nb_rx_queue, (unsigned)n_tx_queue );
1655                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
1656                                         (uint16_t)n_tx_queue, &port_conf);
1657                 if (ret < 0)
1658                         rte_exit(EXIT_FAILURE, "Cannot configure device: "
1659                                         "err=%d, port=%d\n", ret, portid);
1660
1661                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
1662                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1663                 printf(", ");
1664
1665                 /* init memory */
1666                 ret = init_mem(NB_MBUF);
1667                 if (ret < 0)
1668                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
1669
1670                 /* init one TX queue per couple (lcore,port) */
1671                 queueid = 0;
1672                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1673                         if (rte_lcore_is_enabled(lcore_id) == 0)
1674                                 continue;
1675
1676                         if (queueid >= dev_txq_num)
1677                                 continue;
1678
1679                         if (numa_on)
1680                                 socketid = \
1681                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
1682                         else
1683                                 socketid = 0;
1684
1685                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
1686                         fflush(stdout);
1687
1688                         rte_eth_dev_info_get(portid, &dev_info);
1689                         txconf = &dev_info.default_txconf;
1690                         if (port_conf.rxmode.jumbo_frame)
1691                                 txconf->txq_flags = 0;
1692                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
1693                                                      socketid, txconf);
1694                         if (ret < 0)
1695                                 rte_exit(EXIT_FAILURE,
1696                                         "rte_eth_tx_queue_setup: err=%d, "
1697                                                 "port=%d\n", ret, portid);
1698
1699                         qconf = &lcore_conf[lcore_id];
1700                         qconf->tx_queue_id[portid] = queueid;
1701                         queueid++;
1702                 }
1703                 printf("\n");
1704         }
1705
1706         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1707                 if (rte_lcore_is_enabled(lcore_id) == 0)
1708                         continue;
1709
1710                 /* init power management library */
1711                 ret = rte_power_init(lcore_id);
1712                 if (ret)
1713                         RTE_LOG(ERR, POWER,
1714                                 "Library initialization failed on core %u\n", lcore_id);
1715
1716                 /* init timer structures for each enabled lcore */
1717                 rte_timer_init(&power_timers[lcore_id]);
1718                 hz = rte_get_timer_hz();
1719                 rte_timer_reset(&power_timers[lcore_id],
1720                         hz/TIMER_NUMBER_PER_SECOND, SINGLE, lcore_id,
1721                                                 power_timer_cb, NULL);
1722
1723                 qconf = &lcore_conf[lcore_id];
1724                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
1725                 fflush(stdout);
1726                 /* init RX queues */
1727                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
1728                         portid = qconf->rx_queue_list[queue].port_id;
1729                         queueid = qconf->rx_queue_list[queue].queue_id;
1730
1731                         if (numa_on)
1732                                 socketid = \
1733                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
1734                         else
1735                                 socketid = 0;
1736
1737                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
1738                         fflush(stdout);
1739
1740                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
1741                                 socketid, NULL,
1742                                 pktmbuf_pool[socketid]);
1743                         if (ret < 0)
1744                                 rte_exit(EXIT_FAILURE,
1745                                         "rte_eth_rx_queue_setup: err=%d, "
1746                                                 "port=%d\n", ret, portid);
1747                 }
1748         }
1749
1750         printf("\n");
1751
1752         /* start ports */
1753         for (portid = 0; portid < nb_ports; portid++) {
1754                 if ((enabled_port_mask & (1 << portid)) == 0) {
1755                         continue;
1756                 }
1757                 /* Start device */
1758                 ret = rte_eth_dev_start(portid);
1759                 if (ret < 0)
1760                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
1761                                                 "port=%d\n", ret, portid);
1762                 /*
1763                  * If enabled, put device in promiscuous mode.
1764                  * This allows IO forwarding mode to forward packets
1765                  * to itself through 2 cross-connected  ports of the
1766                  * target machine.
1767                  */
1768                 if (promiscuous_on)
1769                         rte_eth_promiscuous_enable(portid);
1770                 /* initialize spinlock for each port */
1771                 rte_spinlock_init(&(locks[portid]));
1772         }
1773
1774         check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
1775
1776         /* launch per-lcore init on every lcore */
1777         rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1778         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1779                 if (rte_eal_wait_lcore(lcore_id) < 0)
1780                         return -1;
1781         }
1782
1783         return 0;
1784 }