examples/bbdev_app/main.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <stdint.h>
   9 #include <inttypes.h>
  10 #include <sys/types.h>
  11 #include <sys/unistd.h>
  12 #include <sys/queue.h>
  13 #include <stdarg.h>
  14 #include <ctype.h>
  15 #include <errno.h>
  16 #include <math.h>
  17 #include <assert.h>
  18 #include <getopt.h>
  19 #include <signal.h>
  20
  21 #include "rte_atomic.h"
  22 #include "rte_common.h"
  23 #include "rte_eal.h"
  24 #include "rte_cycles.h"
  25 #include "rte_ether.h"
  26 #include "rte_ethdev.h"
  27 #include "rte_ip.h"
  28 #include "rte_lcore.h"
  29 #include "rte_malloc.h"
  30 #include "rte_mbuf.h"
  31 #include "rte_memory.h"
  32 #include "rte_mempool.h"
  33 #include "rte_log.h"
  34 #include "rte_bbdev.h"
  35 #include "rte_bbdev_op.h"
  36
  37 /* LLR values - negative value for '1' bit */
  38 #define LLR_1_BIT 0x81
  39 #define LLR_0_BIT 0x7F
  40
  41 #define MAX_PKT_BURST 32
  42 #define NB_MBUF 8191
  43 #define MEMPOOL_CACHE_SIZE 256
  44
  45 /* Hardcoded K value */
  46 #define K 40
  47 #define NCB (3 * RTE_ALIGN_CEIL(K + 4, 32))
  48
  49 #define CRC_24B_LEN 3
  50
  51 /* Configurable number of RX/TX ring descriptors */
  52 #define RTE_TEST_RX_DESC_DEFAULT 128
  53 #define RTE_TEST_TX_DESC_DEFAULT 512
  54
  55 #define BBDEV_ASSERT(a) do { \
  56         if (!(a)) { \
  57                 usage(prgname); \
  58                 return -1; \
  59         } \
  60 } while (0)
  61
  62 static const struct rte_eth_conf port_conf = {
  63         .rxmode = {
  64                 .mq_mode = ETH_MQ_RX_NONE,
  65                 .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
  66                 .split_hdr_size = 0,
  67         },
  68         .txmode = {
  69                 .mq_mode = ETH_MQ_TX_NONE,
  70         },
  71 };
  72
  73 struct rte_bbdev_op_turbo_enc def_op_enc = {
  74         /* These values are arbitrarily put, and does not map to the real
  75          * values for the data received from ethdev ports
  76          */
  77         .rv_index = 0,
  78         .code_block_mode = 1,
  79         .cb_params = {
  80                 .k = K,
  81         },
  82         .op_flags = RTE_BBDEV_TURBO_CRC_24A_ATTACH
  83 };
  84
  85 struct rte_bbdev_op_turbo_dec def_op_dec = {
  86         /* These values are arbitrarily put, and does not map to the real
  87          * values for the data received from ethdev ports
  88          */
  89         .code_block_mode = 1,
  90         .cb_params = {
  91                 .k = K,
  92         },
  93         .rv_index = 0,
  94         .iter_max = 8,
  95         .iter_min = 4,
  96         .ext_scale = 15,
  97         .num_maps = 0,
  98         .op_flags = RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN
  99 };
 100
 101 struct app_config_params {
 102         /* Placeholders for app params */
 103         uint16_t port_id;
 104         uint16_t bbdev_id;
 105         uint64_t enc_core_mask;
 106         uint64_t dec_core_mask;
 107
 108         /* Values filled during init time */
 109         uint16_t enc_queue_ids[RTE_MAX_LCORE];
 110         uint16_t dec_queue_ids[RTE_MAX_LCORE];
 111         uint16_t num_enc_cores;
 112         uint16_t num_dec_cores;
 113 };
 114
 115 struct lcore_statistics {
 116         unsigned int enqueued;
 117         unsigned int dequeued;
 118         unsigned int rx_lost_packets;
 119         unsigned int enc_to_dec_lost_packets;
 120         unsigned int tx_lost_packets;
 121 } __rte_cache_aligned;
 122
 123 /** each lcore configuration */
 124 struct lcore_conf {
 125         uint64_t core_type;
 126
 127         unsigned int port_id;
 128         unsigned int rx_queue_id;
 129         unsigned int tx_queue_id;
 130
 131         unsigned int bbdev_id;
 132         unsigned int enc_queue_id;
 133         unsigned int dec_queue_id;
 134
 135         uint8_t llr_temp_buf[NCB];
 136
 137         struct rte_mempool *bbdev_dec_op_pool;
 138         struct rte_mempool *bbdev_enc_op_pool;
 139         struct rte_mempool *enc_out_pool;
 140         struct rte_ring *enc_to_dec_ring;
 141
 142         struct lcore_statistics *lcore_stats;
 143 } __rte_cache_aligned;
 144
 145 struct stats_lcore_params {
 146         struct lcore_conf *lconf;
 147         struct app_config_params *app_params;
 148 };
 149
 150
 151 static const struct app_config_params def_app_config = {
 152         .port_id = 0,
 153         .bbdev_id = 0,
 154         .enc_core_mask = 0x2,
 155         .dec_core_mask = 0x4,
 156         .num_enc_cores = 1,
 157         .num_dec_cores = 1,
 158 };
 159
 160 static rte_atomic16_t global_exit_flag;
 161
 162 /* display usage */
 163 static inline void
 164 usage(const char *prgname)
 165 {
 166         printf("%s [EAL options] "
 167                         "  --\n"
 168                         "  --enc_cores - number of encoding cores (default = 0x2)\n"
 169                         "  --dec_cores - number of decoding cores (default = 0x4)\n"
 170                         "  --port_id - Ethernet port ID (default = 0)\n"
 171                         "  --bbdev_id - BBDev ID (default = 0)\n"
 172                         "\n", prgname);
 173 }
 174
 175 /* parse core mask */
 176 static inline
 177 uint16_t bbdev_parse_mask(const char *mask)
 178 {
 179         char *end = NULL;
 180         unsigned long pm;
 181
 182         /* parse hexadecimal string */
 183         pm = strtoul(mask, &end, 16);
 184         if ((mask[0] == '\0') || (end == NULL) || (*end != '\0'))
 185                 return 0;
 186
 187         return pm;
 188 }
 189
 190 /* parse core mask */
 191 static inline
 192 uint16_t bbdev_parse_number(const char *mask)
 193 {
 194         char *end = NULL;
 195         unsigned long pm;
 196
 197         /* parse hexadecimal string */
 198         pm = strtoul(mask, &end, 10);
 199         if ((mask[0] == '\0') || (end == NULL) || (*end != '\0'))
 200                 return 0;
 201
 202         return pm;
 203 }
 204
 205 static int
 206 bbdev_parse_args(int argc, char **argv,
 207                 struct app_config_params *app_params)
 208 {
 209         int optind = 0;
 210         int opt;
 211         int opt_indx = 0;
 212         char *prgname = argv[0];
 213
 214         static struct option lgopts[] = {
 215                 { "enc_core_mask", required_argument, 0, 'e' },
 216                 { "dec_core_mask", required_argument, 0, 'd' },
 217                 { "port_id", required_argument, 0, 'p' },
 218                 { "bbdev_id", required_argument, 0, 'b' },
 219                 { NULL, 0, 0, 0 }
 220         };
 221
 222         BBDEV_ASSERT(argc != 0);
 223         BBDEV_ASSERT(argv != NULL);
 224         BBDEV_ASSERT(app_params != NULL);
 225
 226         while ((opt = getopt_long(argc, argv, "e:d:p:b:", lgopts, &opt_indx)) !=
 227                 EOF) {
 228                 switch (opt) {
 229                 case 'e':
 230                         app_params->enc_core_mask =
 231                                 bbdev_parse_mask(optarg);
 232                         if (app_params->enc_core_mask == 0) {
 233                                 usage(prgname);
 234                                 return -1;
 235                         }
 236                         app_params->num_enc_cores =
 237                                 __builtin_popcount(app_params->enc_core_mask);
 238                         break;
 239
 240                 case 'd':
 241                         app_params->dec_core_mask =
 242                                 bbdev_parse_mask(optarg);
 243                         if (app_params->dec_core_mask == 0) {
 244                                 usage(prgname);
 245                                 return -1;
 246                         }
 247                         app_params->num_dec_cores =
 248                                 __builtin_popcount(app_params->dec_core_mask);
 249                         break;
 250
 251                 case 'p':
 252                         app_params->port_id = bbdev_parse_number(optarg);
 253                         break;
 254
 255                 case 'b':
 256                         app_params->bbdev_id = bbdev_parse_number(optarg);
 257                         break;
 258
 259                 default:
 260                         usage(prgname);
 261                         return -1;
 262                 }
 263         }
 264         optind = 0;
 265         return optind;
 266 }
 267
 268 static void
 269 signal_handler(int signum)
 270 {
 271         printf("\nSignal %d received\n", signum);
 272         rte_atomic16_set(&global_exit_flag, 1);
 273 }
 274
 275 static void
 276 print_mac(unsigned int portid, struct rte_ether_addr *bbdev_ports_eth_address)
 277 {
 278         printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
 279                         (unsigned int) portid,
 280                         bbdev_ports_eth_address->addr_bytes[0],
 281                         bbdev_ports_eth_address->addr_bytes[1],
 282                         bbdev_ports_eth_address->addr_bytes[2],
 283                         bbdev_ports_eth_address->addr_bytes[3],
 284                         bbdev_ports_eth_address->addr_bytes[4],
 285                         bbdev_ports_eth_address->addr_bytes[5]);
 286 }
 287
 288 static inline void
 289 pktmbuf_free_bulk(struct rte_mbuf **mbufs, unsigned int nb_to_free)
 290 {
 291         unsigned int i;
 292         for (i = 0; i < nb_to_free; ++i)
 293                 rte_pktmbuf_free(mbufs[i]);
 294 }
 295
 296 static inline void
 297 pktmbuf_userdata_free_bulk(struct rte_mbuf **mbufs, unsigned int nb_to_free)
 298 {
 299         unsigned int i;
 300         for (i = 0; i < nb_to_free; ++i) {
 301                 struct rte_mbuf *rx_pkt = mbufs[i]->userdata;
 302                 rte_pktmbuf_free(rx_pkt);
 303                 rte_pktmbuf_free(mbufs[i]);
 304         }
 305 }
 306
 307 /* Check the link status of all ports in up to 9s, and print them finally */
 308 static int
 309 check_port_link_status(uint16_t port_id)
 310 {
 311 #define CHECK_INTERVAL 100 /* 100ms */
 312 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 313         uint8_t count;
 314         struct rte_eth_link link;
 315         int link_get_err = -EINVAL;
 316
 317         printf("\nChecking link status.");
 318         fflush(stdout);
 319
 320         for (count = 0; count <= MAX_CHECK_TIME &&
 321                         !rte_atomic16_read(&global_exit_flag); count++) {
 322                 memset(&link, 0, sizeof(link));
 323                 link_get_err = rte_eth_link_get_nowait(port_id, &link);
 324
 325                 if (link_get_err >= 0 && link.link_status) {
 326                         const char *dp = (link.link_duplex ==
 327                                 ETH_LINK_FULL_DUPLEX) ?
 328                                 "full-duplex" : "half-duplex";
 329                         printf("\nPort %u Link Up - speed %u Mbps - %s\n",
 330                                 port_id, link.link_speed, dp);
 331                         return 0;
 332                 }
 333                 printf(".");
 334                 fflush(stdout);
 335                 rte_delay_ms(CHECK_INTERVAL);
 336         }
 337
 338         if (link_get_err >= 0)
 339                 printf("\nPort %d Link Down\n", port_id);
 340         else
 341                 printf("\nGet link failed (port %d): %s\n", port_id,
 342                        rte_strerror(-link_get_err));
 343
 344         return 0;
 345 }
 346
 347 static inline void
 348 add_ether_hdr(struct rte_mbuf *pkt_src, struct rte_mbuf *pkt_dst)
 349 {
 350         struct rte_ether_hdr *eth_from;
 351         struct rte_ether_hdr *eth_to;
 352
 353         eth_from = rte_pktmbuf_mtod(pkt_src, struct rte_ether_hdr *);
 354         eth_to = rte_pktmbuf_mtod(pkt_dst, struct rte_ether_hdr *);
 355
 356         /* copy header */
 357         rte_memcpy(eth_to, eth_from, sizeof(struct rte_ether_hdr));
 358 }
 359
 360 static inline void
 361 add_awgn(struct rte_mbuf **mbufs, uint16_t num_pkts)
 362 {
 363         RTE_SET_USED(mbufs);
 364         RTE_SET_USED(num_pkts);
 365 }
 366
 367 /* Encoder output to Decoder input adapter. The Decoder accepts only soft input
 368  * so each bit of the encoder output must be translated into one byte of LLR. If
 369  * Sub-block Deinterleaver is bypassed, which is the case, the padding bytes
 370  * must additionally be insterted at the end of each sub-block.
 371  */
 372 static inline void
 373 transform_enc_out_dec_in(struct rte_mbuf **mbufs, uint8_t *temp_buf,
 374                 uint16_t num_pkts, uint16_t k)
 375 {
 376         uint16_t i, l, j;
 377         uint16_t start_bit_idx;
 378         uint16_t out_idx;
 379         uint16_t d = k + 4;
 380         uint16_t kpi = RTE_ALIGN_CEIL(d, 32);
 381         uint16_t nd = kpi - d;
 382         uint16_t ncb = 3 * kpi;
 383
 384         for (i = 0; i < num_pkts; ++i) {
 385                 uint16_t pkt_data_len = rte_pktmbuf_data_len(mbufs[i]) -
 386                                 sizeof(struct rte_ether_hdr);
 387
 388                 /* Resize the packet if needed */
 389                 if (pkt_data_len < ncb) {
 390                         char *data = rte_pktmbuf_append(mbufs[i],
 391                                         ncb - pkt_data_len);
 392                         if (data == NULL)
 393                                 printf(
 394                                         "Not enough space in decoder input packet");
 395                 }
 396
 397                 /* Translate each bit into 1 LLR byte. */
 398                 start_bit_idx = 0;
 399                 out_idx = 0;
 400                 for (j = 0; j < 3; ++j) {
 401                         for (l = start_bit_idx; l < start_bit_idx + d; ++l) {
 402                                 uint8_t *data = rte_pktmbuf_mtod_offset(
 403                                         mbufs[i], uint8_t *,
 404                                         sizeof(struct rte_ether_hdr) +
 405                                         (l >> 3));
 406                                 if (*data & (0x80 >> (l & 7)))
 407                                         temp_buf[out_idx] = LLR_1_BIT;
 408                                 else
 409                                         temp_buf[out_idx] = LLR_0_BIT;
 410                                 ++out_idx;
 411                         }
 412                         /* Padding bytes should be at the end of the sub-block.
 413                          */
 414                         memset(&temp_buf[out_idx], 0, nd);
 415                         out_idx += nd;
 416                         start_bit_idx += d;
 417                 }
 418
 419                 rte_memcpy(rte_pktmbuf_mtod_offset(mbufs[i], uint8_t *,
 420                                 sizeof(struct rte_ether_hdr)), temp_buf, ncb);
 421         }
 422 }
 423
 424 static inline void
 425 verify_data(struct rte_mbuf **mbufs, uint16_t num_pkts)
 426 {
 427         uint16_t i;
 428         for (i = 0; i < num_pkts; ++i) {
 429                 struct rte_mbuf *out = mbufs[i];
 430                 struct rte_mbuf *in = out->userdata;
 431
 432                 if (memcmp(rte_pktmbuf_mtod_offset(in, uint8_t *,
 433                                 sizeof(struct rte_ether_hdr)),
 434                                 rte_pktmbuf_mtod_offset(out, uint8_t *,
 435                                 sizeof(struct rte_ether_hdr)),
 436                                 K / 8 - CRC_24B_LEN))
 437                         printf("Input and output buffers are not equal!\n");
 438         }
 439 }
 440
 441 static int
 442 initialize_ports(struct app_config_params *app_params,
 443                 struct rte_mempool *ethdev_mbuf_mempool)
 444 {
 445         int ret;
 446         uint16_t port_id = app_params->port_id;
 447         uint16_t q;
 448         /* ethernet addresses of ports */
 449         struct rte_ether_addr bbdev_port_eth_addr;
 450
 451         /* initialize ports */
 452         printf("\nInitializing port %u...\n", app_params->port_id);
 453         ret = rte_eth_dev_configure(port_id, app_params->num_enc_cores,
 454                 app_params->num_dec_cores, &port_conf);
 455
 456         if (ret < 0) {
 457                 printf("Cannot configure device: err=%d, port=%u\n",
 458                         ret, port_id);
 459                 return -1;
 460         }
 461
 462         /* initialize RX queues for encoder */
 463         for (q = 0; q < app_params->num_enc_cores; q++) {
 464                 ret = rte_eth_rx_queue_setup(port_id, q,
 465                         RTE_TEST_RX_DESC_DEFAULT,
 466                         rte_eth_dev_socket_id(port_id),
 467                         NULL, ethdev_mbuf_mempool);
 468                 if (ret < 0) {
 469                         printf("rte_eth_rx_queue_setup: err=%d, queue=%u\n",
 470                                 ret, q);
 471                         return -1;
 472                 }
 473         }
 474         /* initialize TX queues for decoder */
 475         for (q = 0; q < app_params->num_dec_cores; q++) {
 476                 ret = rte_eth_tx_queue_setup(port_id, q,
 477                         RTE_TEST_TX_DESC_DEFAULT,
 478                         rte_eth_dev_socket_id(port_id), NULL);
 479                 if (ret < 0) {
 480                         printf("rte_eth_tx_queue_setup: err=%d, queue=%u\n",
 481                                 ret, q);
 482                         return -1;
 483                 }
 484         }
 485
 486         ret = rte_eth_promiscuous_enable(port_id);
 487         if (ret != 0) {
 488                 printf("Cannot enable promiscuous mode: err=%s, port=%u\n",
 489                         rte_strerror(-ret), port_id);
 490                 return ret;
 491         }
 492
 493         ret = rte_eth_macaddr_get(port_id, &bbdev_port_eth_addr);
 494         if (ret < 0) {
 495                 printf("rte_eth_macaddr_get: err=%d, queue=%u\n",
 496                         ret, q);
 497                 return -1;
 498         }
 499
 500         print_mac(port_id, &bbdev_port_eth_addr);
 501
 502         return 0;
 503 }
 504
 505 static void
 506 lcore_conf_init(struct app_config_params *app_params,
 507                 struct lcore_conf *lcore_conf,
 508                 struct rte_mempool **bbdev_op_pools,
 509                 struct rte_mempool *bbdev_mbuf_mempool,
 510                 struct rte_ring *enc_to_dec_ring,
 511                 struct lcore_statistics *lcore_stats)
 512 {
 513         unsigned int lcore_id;
 514         struct lcore_conf *lconf;
 515         uint16_t rx_queue_id = 0;
 516         uint16_t tx_queue_id = 0;
 517         uint16_t enc_q_id = 0;
 518         uint16_t dec_q_id = 0;
 519
 520         /* Configure lcores */
 521         for (lcore_id = 0; lcore_id < 8 * sizeof(uint64_t); ++lcore_id) {
 522                 lconf = &lcore_conf[lcore_id];
 523                 lconf->core_type = 0;
 524
 525                 if ((1ULL << lcore_id) & app_params->enc_core_mask) {
 526                         lconf->core_type |= (1 << RTE_BBDEV_OP_TURBO_ENC);
 527                         lconf->rx_queue_id = rx_queue_id++;
 528                         lconf->enc_queue_id =
 529                                         app_params->enc_queue_ids[enc_q_id++];
 530                 }
 531
 532                 if ((1ULL << lcore_id) & app_params->dec_core_mask) {
 533                         lconf->core_type |= (1 << RTE_BBDEV_OP_TURBO_DEC);
 534                         lconf->tx_queue_id = tx_queue_id++;
 535                         lconf->dec_queue_id =
 536                                         app_params->dec_queue_ids[dec_q_id++];
 537                 }
 538
 539                 lconf->bbdev_enc_op_pool =
 540                                 bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC];
 541                 lconf->bbdev_dec_op_pool =
 542                                 bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC];
 543                 lconf->bbdev_id = app_params->bbdev_id;
 544                 lconf->port_id = app_params->port_id;
 545                 lconf->enc_out_pool = bbdev_mbuf_mempool;
 546                 lconf->enc_to_dec_ring = enc_to_dec_ring;
 547                 lconf->lcore_stats = &lcore_stats[lcore_id];
 548         }
 549 }
 550
 551 static void
 552 print_lcore_stats(struct lcore_statistics *lstats, unsigned int lcore_id)
 553 {
 554         static const char *stats_border = "_______";
 555
 556         printf("\nLcore %d: %s enqueued count:\t\t%u\n",
 557                         lcore_id, stats_border, lstats->enqueued);
 558         printf("Lcore %d: %s dequeued count:\t\t%u\n",
 559                         lcore_id, stats_border, lstats->dequeued);
 560         printf("Lcore %d: %s RX lost packets count:\t\t%u\n",
 561                         lcore_id, stats_border, lstats->rx_lost_packets);
 562         printf("Lcore %d: %s encoder-to-decoder lost count:\t%u\n",
 563                         lcore_id, stats_border,
 564                         lstats->enc_to_dec_lost_packets);
 565         printf("Lcore %d: %s TX lost packets count:\t\t%u\n",
 566                         lcore_id, stats_border, lstats->tx_lost_packets);
 567 }
 568
 569 static void
 570 print_stats(struct stats_lcore_params *stats_lcore)
 571 {
 572         unsigned int l_id;
 573         unsigned int bbdev_id = stats_lcore->app_params->bbdev_id;
 574         unsigned int port_id = stats_lcore->app_params->port_id;
 575         int len, ret, i;
 576
 577         struct rte_eth_xstat *xstats;
 578         struct rte_eth_xstat_name *xstats_names;
 579         struct rte_bbdev_stats bbstats;
 580         static const char *stats_border = "_______";
 581
 582         const char clr[] = { 27, '[', '2', 'J', '\0' };
 583         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 584
 585         /* Clear screen and move to top left */
 586         printf("%s%s", clr, topLeft);
 587
 588         printf("PORT STATISTICS:\n================\n");
 589         len = rte_eth_xstats_get(port_id, NULL, 0);
 590         if (len < 0)
 591                 rte_exit(EXIT_FAILURE,
 592                                 "rte_eth_xstats_get(%u) failed: %d", port_id,
 593                                 len);
 594
 595         xstats = calloc(len, sizeof(*xstats));
 596         if (xstats == NULL)
 597                 rte_exit(EXIT_FAILURE,
 598                                 "Failed to calloc memory for xstats");
 599
 600         ret = rte_eth_xstats_get(port_id, xstats, len);
 601         if (ret < 0 || ret > len) {
 602                 free(xstats);
 603                 rte_exit(EXIT_FAILURE,
 604                                 "rte_eth_xstats_get(%u) len%i failed: %d",
 605                                 port_id, len, ret);
 606         }
 607
 608         xstats_names = calloc(len, sizeof(*xstats_names));
 609         if (xstats_names == NULL) {
 610                 free(xstats);
 611                 rte_exit(EXIT_FAILURE,
 612                                 "Failed to calloc memory for xstats_names");
 613         }
 614
 615         ret = rte_eth_xstats_get_names(port_id, xstats_names, len);
 616         if (ret < 0 || ret > len) {
 617                 free(xstats);
 618                 free(xstats_names);
 619                 rte_exit(EXIT_FAILURE,
 620                                 "rte_eth_xstats_get_names(%u) len%i failed: %d",
 621                                 port_id, len, ret);
 622         }
 623
 624         for (i = 0; i < len; i++) {
 625                 if (xstats[i].value > 0)
 626                         printf("Port %u: %s %s:\t\t%"PRIu64"\n",
 627                                         port_id, stats_border,
 628                                         xstats_names[i].name,
 629                                         xstats[i].value);
 630         }
 631
 632         ret = rte_bbdev_stats_get(bbdev_id, &bbstats);
 633         if (ret < 0) {
 634                 free(xstats);
 635                 free(xstats_names);
 636                 rte_exit(EXIT_FAILURE,
 637                                 "ERROR(%d): Failure to get BBDEV %u statistics\n",
 638                                 ret, bbdev_id);
 639         }
 640
 641         printf("\nBBDEV STATISTICS:\n=================\n");
 642         printf("BBDEV %u: %s enqueue count:\t\t%"PRIu64"\n",
 643                         bbdev_id, stats_border,
 644                         bbstats.enqueued_count);
 645         printf("BBDEV %u: %s dequeue count:\t\t%"PRIu64"\n",
 646                         bbdev_id, stats_border,
 647                         bbstats.dequeued_count);
 648         printf("BBDEV %u: %s enqueue error count:\t\t%"PRIu64"\n",
 649                         bbdev_id, stats_border,
 650                         bbstats.enqueue_err_count);
 651         printf("BBDEV %u: %s dequeue error count:\t\t%"PRIu64"\n\n",
 652                         bbdev_id, stats_border,
 653                         bbstats.dequeue_err_count);
 654
 655         printf("LCORE STATISTICS:\n=================\n");
 656         for (l_id = 0; l_id < RTE_MAX_LCORE; ++l_id) {
 657                 if (stats_lcore->lconf[l_id].core_type == 0)
 658                         continue;
 659                 print_lcore_stats(stats_lcore->lconf[l_id].lcore_stats, l_id);
 660         }
 661
 662         fflush(stdout);
 663
 664         free(xstats);
 665         free(xstats_names);
 666 }
 667
 668 static int
 669 stats_loop(void *arg)
 670 {
 671         struct stats_lcore_params *stats_lcore = arg;
 672
 673         while (!rte_atomic16_read(&global_exit_flag)) {
 674                 print_stats(stats_lcore);
 675                 rte_delay_ms(500);
 676         }
 677
 678         return 0;
 679 }
 680
 681 static inline void
 682 run_encoding(struct lcore_conf *lcore_conf)
 683 {
 684         uint16_t i;
 685         uint16_t port_id, rx_queue_id;
 686         uint16_t bbdev_id, enc_queue_id;
 687         uint16_t nb_rx, nb_enq, nb_deq, nb_sent;
 688         struct rte_mbuf *rx_pkts_burst[MAX_PKT_BURST];
 689         struct rte_mbuf *enc_out_pkts[MAX_PKT_BURST];
 690         struct rte_bbdev_enc_op *bbdev_ops_burst[MAX_PKT_BURST];
 691         struct lcore_statistics *lcore_stats;
 692         struct rte_mempool *bbdev_op_pool, *enc_out_pool;
 693         struct rte_ring *enc_to_dec_ring;
 694         const int in_data_len = (def_op_enc.cb_params.k / 8) - CRC_24B_LEN;
 695
 696         lcore_stats = lcore_conf->lcore_stats;
 697         port_id = lcore_conf->port_id;
 698         rx_queue_id = lcore_conf->rx_queue_id;
 699         bbdev_id = lcore_conf->bbdev_id;
 700         enc_queue_id = lcore_conf->enc_queue_id;
 701         bbdev_op_pool = lcore_conf->bbdev_enc_op_pool;
 702         enc_out_pool = lcore_conf->enc_out_pool;
 703         enc_to_dec_ring = lcore_conf->enc_to_dec_ring;
 704
 705         /* Read packet from RX queues*/
 706         nb_rx = rte_eth_rx_burst(port_id, rx_queue_id, rx_pkts_burst,
 707                         MAX_PKT_BURST);
 708         if (!nb_rx)
 709                 return;
 710
 711         if (unlikely(rte_mempool_get_bulk(enc_out_pool, (void **)enc_out_pkts,
 712                         nb_rx) != 0)) {
 713                 pktmbuf_free_bulk(rx_pkts_burst, nb_rx);
 714                 lcore_stats->rx_lost_packets += nb_rx;
 715                 return;
 716         }
 717
 718         if (unlikely(rte_bbdev_enc_op_alloc_bulk(bbdev_op_pool, bbdev_ops_burst,
 719                         nb_rx) != 0)) {
 720                 pktmbuf_free_bulk(enc_out_pkts, nb_rx);
 721                 pktmbuf_free_bulk(rx_pkts_burst, nb_rx);
 722                 lcore_stats->rx_lost_packets += nb_rx;
 723                 return;
 724         }
 725
 726         for (i = 0; i < nb_rx; i++) {
 727                 char *data;
 728                 const uint16_t pkt_data_len =
 729                                 rte_pktmbuf_data_len(rx_pkts_burst[i]) -
 730                                 sizeof(struct rte_ether_hdr);
 731                 /* save input mbuf pointer for later comparison */
 732                 enc_out_pkts[i]->userdata = rx_pkts_burst[i];
 733
 734                 /* copy ethernet header */
 735                 rte_pktmbuf_reset(enc_out_pkts[i]);
 736                 data = rte_pktmbuf_append(enc_out_pkts[i],
 737                                 sizeof(struct rte_ether_hdr));
 738                 if (data == NULL) {
 739                         printf(
 740                                 "Not enough space for ethernet header in encoder output mbuf\n");
 741                         continue;
 742                 }
 743                 add_ether_hdr(rx_pkts_burst[i], enc_out_pkts[i]);
 744
 745                 /* set op */
 746                 bbdev_ops_burst[i]->turbo_enc = def_op_enc;
 747
 748                 bbdev_ops_burst[i]->turbo_enc.input.data =
 749                                 rx_pkts_burst[i];
 750                 bbdev_ops_burst[i]->turbo_enc.input.offset =
 751                                 sizeof(struct rte_ether_hdr);
 752                 /* Encoder will attach the CRC24B, adjust the length */
 753                 bbdev_ops_burst[i]->turbo_enc.input.length = in_data_len;
 754
 755                 if (in_data_len < pkt_data_len)
 756                         rte_pktmbuf_trim(rx_pkts_burst[i], pkt_data_len -
 757                                         in_data_len);
 758                 else if (in_data_len > pkt_data_len) {
 759                         data = rte_pktmbuf_append(rx_pkts_burst[i],
 760                                         in_data_len - pkt_data_len);
 761                         if (data == NULL)
 762                                 printf(
 763                                         "Not enough storage in mbuf to perform the encoding\n");
 764                 }
 765
 766                 bbdev_ops_burst[i]->turbo_enc.output.data =
 767                                 enc_out_pkts[i];
 768                 bbdev_ops_burst[i]->turbo_enc.output.offset =
 769                                 sizeof(struct rte_ether_hdr);
 770         }
 771
 772         /* Enqueue packets on BBDevice */
 773         nb_enq = rte_bbdev_enqueue_enc_ops(bbdev_id, enc_queue_id,
 774                         bbdev_ops_burst, nb_rx);
 775         if (unlikely(nb_enq < nb_rx)) {
 776                 pktmbuf_userdata_free_bulk(&enc_out_pkts[nb_enq],
 777                                 nb_rx - nb_enq);
 778                 rte_bbdev_enc_op_free_bulk(&bbdev_ops_burst[nb_enq],
 779                                 nb_rx - nb_enq);
 780                 lcore_stats->rx_lost_packets += nb_rx - nb_enq;
 781
 782                 if (!nb_enq)
 783                         return;
 784         }
 785
 786         lcore_stats->enqueued += nb_enq;
 787
 788         /* Dequeue packets from bbdev device*/
 789         nb_deq = 0;
 790         do {
 791                 nb_deq += rte_bbdev_dequeue_enc_ops(bbdev_id, enc_queue_id,
 792                                 &bbdev_ops_burst[nb_deq], nb_enq - nb_deq);
 793         } while (unlikely(nb_deq < nb_enq));
 794
 795         lcore_stats->dequeued += nb_deq;
 796
 797         /* Generate and add AWGN */
 798         add_awgn(enc_out_pkts, nb_deq);
 799
 800         rte_bbdev_enc_op_free_bulk(bbdev_ops_burst, nb_deq);
 801
 802         /* Enqueue packets to encoder-to-decoder ring */
 803         nb_sent = rte_ring_enqueue_burst(enc_to_dec_ring, (void **)enc_out_pkts,
 804                         nb_deq, NULL);
 805         if (unlikely(nb_sent < nb_deq)) {
 806                 pktmbuf_userdata_free_bulk(&enc_out_pkts[nb_sent],
 807                                 nb_deq - nb_sent);
 808                 lcore_stats->enc_to_dec_lost_packets += nb_deq - nb_sent;
 809         }
 810 }
 811
 812 static void
 813 run_decoding(struct lcore_conf *lcore_conf)
 814 {
 815         uint16_t i;
 816         uint16_t port_id, tx_queue_id;
 817         uint16_t bbdev_id, bbdev_queue_id;
 818         uint16_t nb_recv, nb_enq, nb_deq, nb_tx;
 819         uint8_t *llr_temp_buf;
 820         struct rte_mbuf *recv_pkts_burst[MAX_PKT_BURST];
 821         struct rte_bbdev_dec_op *bbdev_ops_burst[MAX_PKT_BURST];
 822         struct lcore_statistics *lcore_stats;
 823         struct rte_mempool *bbdev_op_pool;
 824         struct rte_ring *enc_to_dec_ring;
 825
 826         lcore_stats = lcore_conf->lcore_stats;
 827         port_id = lcore_conf->port_id;
 828         tx_queue_id = lcore_conf->tx_queue_id;
 829         bbdev_id = lcore_conf->bbdev_id;
 830         bbdev_queue_id = lcore_conf->dec_queue_id;
 831         bbdev_op_pool = lcore_conf->bbdev_dec_op_pool;
 832         enc_to_dec_ring = lcore_conf->enc_to_dec_ring;
 833         llr_temp_buf = lcore_conf->llr_temp_buf;
 834
 835         /* Dequeue packets from the ring */
 836         nb_recv = rte_ring_dequeue_burst(enc_to_dec_ring,
 837                         (void **)recv_pkts_burst, MAX_PKT_BURST, NULL);
 838         if (!nb_recv)
 839                 return;
 840
 841         if (unlikely(rte_bbdev_dec_op_alloc_bulk(bbdev_op_pool, bbdev_ops_burst,
 842                         nb_recv) != 0)) {
 843                 pktmbuf_userdata_free_bulk(recv_pkts_burst, nb_recv);
 844                 lcore_stats->rx_lost_packets += nb_recv;
 845                 return;
 846         }
 847
 848         transform_enc_out_dec_in(recv_pkts_burst, llr_temp_buf, nb_recv,
 849                         def_op_dec.cb_params.k);
 850
 851         for (i = 0; i < nb_recv; i++) {
 852                 /* set op */
 853                 bbdev_ops_burst[i]->turbo_dec = def_op_dec;
 854
 855                 bbdev_ops_burst[i]->turbo_dec.input.data = recv_pkts_burst[i];
 856                 bbdev_ops_burst[i]->turbo_dec.input.offset =
 857                                 sizeof(struct rte_ether_hdr);
 858                 bbdev_ops_burst[i]->turbo_dec.input.length =
 859                                 rte_pktmbuf_data_len(recv_pkts_burst[i])
 860                                 - sizeof(struct rte_ether_hdr);
 861
 862                 bbdev_ops_burst[i]->turbo_dec.hard_output.data =
 863                                 recv_pkts_burst[i];
 864                 bbdev_ops_burst[i]->turbo_dec.hard_output.offset =
 865                                 sizeof(struct rte_ether_hdr);
 866         }
 867
 868         /* Enqueue packets on BBDevice */
 869         nb_enq = rte_bbdev_enqueue_dec_ops(bbdev_id, bbdev_queue_id,
 870                         bbdev_ops_burst, nb_recv);
 871         if (unlikely(nb_enq < nb_recv)) {
 872                 pktmbuf_userdata_free_bulk(&recv_pkts_burst[nb_enq],
 873                                 nb_recv - nb_enq);
 874                 rte_bbdev_dec_op_free_bulk(&bbdev_ops_burst[nb_enq],
 875                                 nb_recv - nb_enq);
 876                 lcore_stats->rx_lost_packets += nb_recv - nb_enq;
 877
 878                 if (!nb_enq)
 879                         return;
 880         }
 881
 882         lcore_stats->enqueued += nb_enq;
 883
 884         /* Dequeue packets from BBDevice */
 885         nb_deq = 0;
 886         do {
 887                 nb_deq += rte_bbdev_dequeue_dec_ops(bbdev_id, bbdev_queue_id,
 888                                 &bbdev_ops_burst[nb_deq], nb_enq - nb_deq);
 889         } while (unlikely(nb_deq < nb_enq));
 890
 891         lcore_stats->dequeued += nb_deq;
 892
 893         rte_bbdev_dec_op_free_bulk(bbdev_ops_burst, nb_deq);
 894
 895         verify_data(recv_pkts_burst, nb_deq);
 896
 897         /* Free the RX mbufs after verification */
 898         for (i = 0; i < nb_deq; ++i)
 899                 rte_pktmbuf_free(recv_pkts_burst[i]->userdata);
 900
 901         /* Transmit the packets */
 902         nb_tx = rte_eth_tx_burst(port_id, tx_queue_id, recv_pkts_burst, nb_deq);
 903         if (unlikely(nb_tx < nb_deq)) {
 904                 pktmbuf_userdata_free_bulk(&recv_pkts_burst[nb_tx],
 905                                 nb_deq - nb_tx);
 906                 lcore_stats->tx_lost_packets += nb_deq - nb_tx;
 907         }
 908 }
 909
 910 static int
 911 processing_loop(void *arg)
 912 {
 913         struct lcore_conf *lcore_conf = arg;
 914         const bool run_encoder = (lcore_conf->core_type &
 915                         (1 << RTE_BBDEV_OP_TURBO_ENC));
 916         const bool run_decoder = (lcore_conf->core_type &
 917                         (1 << RTE_BBDEV_OP_TURBO_DEC));
 918
 919         while (!rte_atomic16_read(&global_exit_flag)) {
 920                 if (run_encoder)
 921                         run_encoding(lcore_conf);
 922                 if (run_decoder)
 923                         run_decoding(lcore_conf);
 924         }
 925
 926         return 0;
 927 }
 928
 929 static int
 930 prepare_bbdev_device(unsigned int dev_id, struct rte_bbdev_info *info,
 931                 struct app_config_params *app_params)
 932 {
 933         int ret;
 934         unsigned int q_id, dec_q_id, enc_q_id;
 935         struct rte_bbdev_queue_conf qconf = {0};
 936         uint16_t dec_qs_nb = app_params->num_dec_cores;
 937         uint16_t enc_qs_nb = app_params->num_enc_cores;
 938         uint16_t tot_qs = dec_qs_nb + enc_qs_nb;
 939
 940         ret = rte_bbdev_setup_queues(dev_id, tot_qs, info->socket_id);
 941         if (ret < 0)
 942                 rte_exit(EXIT_FAILURE,
 943                                 "ERROR(%d): BBDEV %u not configured properly\n",
 944                                 ret, dev_id);
 945
 946         /* setup device DEC queues */
 947         qconf.socket = info->socket_id;
 948         qconf.queue_size = info->drv.queue_size_lim;
 949         qconf.op_type = RTE_BBDEV_OP_TURBO_DEC;
 950
 951         for (q_id = 0, dec_q_id = 0; q_id < dec_qs_nb; q_id++) {
 952                 ret = rte_bbdev_queue_configure(dev_id, q_id, &qconf);
 953                 if (ret < 0)
 954                         rte_exit(EXIT_FAILURE,
 955                                         "ERROR(%d): BBDEV %u DEC queue %u not configured properly\n",
 956                                         ret, dev_id, q_id);
 957                 app_params->dec_queue_ids[dec_q_id++] = q_id;
 958         }
 959
 960         /* setup device ENC queues */
 961         qconf.op_type = RTE_BBDEV_OP_TURBO_ENC;
 962
 963         for (q_id = dec_qs_nb, enc_q_id = 0; q_id < tot_qs; q_id++) {
 964                 ret = rte_bbdev_queue_configure(dev_id, q_id, &qconf);
 965                 if (ret < 0)
 966                         rte_exit(EXIT_FAILURE,
 967                                         "ERROR(%d): BBDEV %u ENC queue %u not configured properly\n",
 968                                         ret, dev_id, q_id);
 969                 app_params->enc_queue_ids[enc_q_id++] = q_id;
 970         }
 971
 972         ret = rte_bbdev_start(dev_id);
 973
 974         if (ret != 0)
 975                 rte_exit(EXIT_FAILURE, "ERROR(%d): BBDEV %u not started\n",
 976                         ret, dev_id);
 977
 978         printf("BBdev %u started\n", dev_id);
 979
 980         return 0;
 981 }
 982
 983 static inline bool
 984 check_matching_capabilities(uint64_t mask, uint64_t required_mask)
 985 {
 986         return (mask & required_mask) == required_mask;
 987 }
 988
 989 static void
 990 enable_bbdev(struct app_config_params *app_params)
 991 {
 992         struct rte_bbdev_info dev_info;
 993         const struct rte_bbdev_op_cap *op_cap;
 994         uint16_t bbdev_id = app_params->bbdev_id;
 995         bool encoder_capable = false;
 996         bool decoder_capable = false;
 997
 998         rte_bbdev_info_get(bbdev_id, &dev_info);
 999         op_cap = dev_info.drv.capabilities;
1000
1001         while (op_cap->type != RTE_BBDEV_OP_NONE) {
1002                 if (op_cap->type == RTE_BBDEV_OP_TURBO_ENC) {
1003                         if (check_matching_capabilities(
1004                                         op_cap->cap.turbo_enc.capability_flags,
1005                                         def_op_enc.op_flags))
1006                                 encoder_capable = true;
1007                 }
1008
1009                 if (op_cap->type == RTE_BBDEV_OP_TURBO_DEC) {
1010                         if (check_matching_capabilities(
1011                                         op_cap->cap.turbo_dec.capability_flags,
1012                                         def_op_dec.op_flags))
1013                                 decoder_capable = true;
1014                 }
1015
1016                 op_cap++;
1017         }
1018
1019         if (encoder_capable == false)
1020                 rte_exit(EXIT_FAILURE,
1021                         "The specified BBDev %u doesn't have required encoder capabilities!\n",
1022                         bbdev_id);
1023         if (decoder_capable == false)
1024                 rte_exit(EXIT_FAILURE,
1025                         "The specified BBDev %u doesn't have required decoder capabilities!\n",
1026                         bbdev_id);
1027
1028         prepare_bbdev_device(bbdev_id, &dev_info, app_params);
1029 }
1030
1031 int
1032 main(int argc, char **argv)
1033 {
1034         int ret;
1035         unsigned int nb_bbdevs, flags, lcore_id;
1036         void *sigret;
1037         struct app_config_params app_params = def_app_config;
1038         struct rte_mempool *ethdev_mbuf_mempool, *bbdev_mbuf_mempool;
1039         struct rte_mempool *bbdev_op_pools[RTE_BBDEV_OP_TYPE_COUNT];
1040         struct lcore_conf lcore_conf[RTE_MAX_LCORE] = { {0} };
1041         struct lcore_statistics lcore_stats[RTE_MAX_LCORE] = { {0} };
1042         struct stats_lcore_params stats_lcore;
1043         struct rte_ring *enc_to_dec_ring;
1044         bool stats_thread_started = false;
1045         unsigned int master_lcore_id = rte_get_master_lcore();
1046
1047         rte_atomic16_init(&global_exit_flag);
1048
1049         sigret = signal(SIGTERM, signal_handler);
1050         if (sigret == SIG_ERR)
1051                 rte_exit(EXIT_FAILURE, "signal(%d, ...) failed", SIGTERM);
1052
1053         sigret = signal(SIGINT, signal_handler);
1054         if (sigret == SIG_ERR)
1055                 rte_exit(EXIT_FAILURE, "signal(%d, ...) failed", SIGINT);
1056
1057         ret = rte_eal_init(argc, argv);
1058         if (ret < 0)
1059                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
1060
1061         argc -= ret;
1062         argv += ret;
1063
1064         /* parse application arguments (after the EAL ones) */
1065         ret = bbdev_parse_args(argc, argv, &app_params);
1066         if (ret < 0)
1067                 rte_exit(EXIT_FAILURE, "Invalid BBDEV arguments\n");
1068
1069         /*create bbdev op pools*/
1070         bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC] =
1071                         rte_bbdev_op_pool_create("bbdev_op_pool_dec",
1072                         RTE_BBDEV_OP_TURBO_DEC, NB_MBUF, 128, rte_socket_id());
1073         bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC] =
1074                         rte_bbdev_op_pool_create("bbdev_op_pool_enc",
1075                         RTE_BBDEV_OP_TURBO_ENC, NB_MBUF, 128, rte_socket_id());
1076
1077         if ((bbdev_op_pools[RTE_BBDEV_OP_TURBO_DEC] == NULL) ||
1078                         (bbdev_op_pools[RTE_BBDEV_OP_TURBO_ENC] == NULL))
1079                 rte_exit(EXIT_FAILURE, "Cannot create bbdev op pools\n");
1080
1081         /* Create encoder to decoder ring */
1082         flags = (app_params.num_enc_cores == 1) ? RING_F_SP_ENQ : 0;
1083         if (app_params.num_dec_cores == 1)
1084                 flags |= RING_F_SC_DEQ;
1085
1086         enc_to_dec_ring = rte_ring_create("enc_to_dec_ring",
1087                 rte_align32pow2(NB_MBUF), rte_socket_id(), flags);
1088
1089         /* Get the number of available bbdev devices */
1090         nb_bbdevs = rte_bbdev_count();
1091         if (nb_bbdevs <= app_params.bbdev_id)
1092                 rte_exit(EXIT_FAILURE,
1093                                 "%u BBDevs detected, cannot use BBDev with ID %u!\n",
1094                                 nb_bbdevs, app_params.bbdev_id);
1095         printf("Number of bbdevs detected: %d\n", nb_bbdevs);
1096
1097         if (!rte_eth_dev_is_valid_port(app_params.port_id))
1098                 rte_exit(EXIT_FAILURE,
1099                                 "cannot use port with ID %u!\n",
1100                                 app_params.port_id);
1101
1102         /* create the mbuf mempool for ethdev pkts */
1103         ethdev_mbuf_mempool = rte_pktmbuf_pool_create("ethdev_mbuf_pool",
1104                         NB_MBUF, MEMPOOL_CACHE_SIZE, 0,
1105                         RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
1106         if (ethdev_mbuf_mempool == NULL)
1107                 rte_exit(EXIT_FAILURE, "Cannot create ethdev mbuf mempool\n");
1108
1109         /* create the mbuf mempool for encoder output */
1110         bbdev_mbuf_mempool = rte_pktmbuf_pool_create("bbdev_mbuf_pool",
1111                         NB_MBUF, MEMPOOL_CACHE_SIZE, 0,
1112                         RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
1113         if (bbdev_mbuf_mempool == NULL)
1114                 rte_exit(EXIT_FAILURE, "Cannot create ethdev mbuf mempool\n");
1115
1116         /* initialize ports */
1117         ret = initialize_ports(&app_params, ethdev_mbuf_mempool);
1118
1119         /* Check if all requested lcores are available */
1120         for (lcore_id = 0; lcore_id < 8 * sizeof(uint64_t); ++lcore_id)
1121                 if (((1ULL << lcore_id) & app_params.enc_core_mask) ||
1122                                 ((1ULL << lcore_id) & app_params.dec_core_mask))
1123                         if (!rte_lcore_is_enabled(lcore_id))
1124                                 rte_exit(EXIT_FAILURE,
1125                                                 "Requested lcore_id %u is not enabled!\n",
1126                                                 lcore_id);
1127
1128         /* Start ethernet port */
1129         ret = rte_eth_dev_start(app_params.port_id);
1130         if (ret < 0)
1131                 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
1132                                 ret, app_params.port_id);
1133
1134         ret = check_port_link_status(app_params.port_id);
1135         if (ret < 0)
1136                 exit(EXIT_FAILURE);
1137
1138         /* start BBDevice and save BBDev queue IDs */
1139         enable_bbdev(&app_params);
1140
1141         /* Initialize the port/queue configuration of each logical core */
1142         lcore_conf_init(&app_params, lcore_conf, bbdev_op_pools,
1143                         bbdev_mbuf_mempool, enc_to_dec_ring, lcore_stats);
1144
1145         stats_lcore.app_params = &app_params;
1146         stats_lcore.lconf = lcore_conf;
1147
1148         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1149                 if (lcore_conf[lcore_id].core_type != 0)
1150                         /* launch per-lcore processing loop on slave lcores */
1151                         rte_eal_remote_launch(processing_loop,
1152                                         &lcore_conf[lcore_id], lcore_id);
1153                 else if (!stats_thread_started) {
1154                         /* launch statistics printing loop */
1155                         rte_eal_remote_launch(stats_loop, &stats_lcore,
1156                                         lcore_id);
1157                         stats_thread_started = true;
1158                 }
1159         }
1160
1161         if (!stats_thread_started &&
1162                         lcore_conf[master_lcore_id].core_type != 0)
1163                 rte_exit(EXIT_FAILURE,
1164                                 "Not enough lcores to run the statistics printing loop!");
1165         else if (lcore_conf[master_lcore_id].core_type != 0)
1166                 processing_loop(&lcore_conf[master_lcore_id]);
1167         else if (!stats_thread_started)
1168                 stats_loop(&stats_lcore);
1169
1170         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1171                 ret |= rte_eal_wait_lcore(lcore_id);
1172         }
1173
1174         return ret;
1175 }